Group delay timing accuracy for positioning in new radio

文档序号：1958229 发布日期：2021-12-10 浏览：23次中文

阅读说明：本技术 新无线电中的定位的群延迟定时准确性 (Group delay timing accuracy for positioning in new radio ) 是由 A·马诺拉克斯 S·阿卡拉卡兰 A·多罗森科 J·B·索里亚加骆涛于 2020-04-30 设计创作，主要内容包括：描述了用于无线通信的方法、系统和设备。用户装备(UE)可接收配置信号,该配置信号指示用于定位参考信号的配置。UE可基于该配置信号来确定与该定位参考信号相关联的一个或多个性质。UE可基于与该定位参考信号相关联的一个或多个性质来确定与一个或多个定时测量相关联的准确性水平,以及向基站传送与该定位参考信号相关联的测量报告。在一些示例中,该测量报告可与关联于该一个或多个定时测量的准确性水平有关。(Methods, systems, and devices for wireless communication are described. A User Equipment (UE) may receive a configuration signal indicating a configuration for positioning reference signals. The UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. The UE may determine an accuracy level associated with one or more timing measurements based on one or more properties associated with the positioning reference signal and transmit a measurement report associated with the positioning reference signal to a base station. In some examples, the measurement report may relate to a level of accuracy associated with the one or more timing measurements.)

1. A method for wireless communications by a User Equipment (UE), comprising:

receiving a configuration signal indicating a configuration for positioning reference signals;

determining one or more properties associated with the positioning reference signal based at least in part on the configuration signal;

determining a level of accuracy associated with one or more timing measurements based, at least in part, on one or more timings associated with the positioning reference signal and the one or more properties associated with the positioning reference signal; and

transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

2. The method of claim 1, further comprising:

determine an accuracy level associated with a transmission timing of a second positioning reference signal, an accuracy level associated with a reception timing of the positioning reference signal, an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof, based at least in part on the one or more properties associated with the positioning reference signal.

3. The method of claim 1, further comprising:

identifying one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof; and

wherein determining the level of accuracy further comprises determining the level of accuracy based at least in part on identifying the one or more measurement gaps, the one or more guard periods, or a combination thereof.

4. The method of claim 3, further comprising:

bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein identifying one or more timings associated with the second positioning reference signal comprises identifying one or more timing measurements associated with the second positioning reference signal, and bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on identifying the one or more measurement gaps and the one or more guard periods.

5. The method of claim 4, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

6. The method of claim 4, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

7. The method of claim 1, further comprising:

identifying, based at least in part on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

8. The method of claim 7, further comprising:

identifying that the positioning reference signal is intended for performing the positioning measurement; and

bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

9. The method of claim 7, further comprising:

identifying that the positioning reference signal is intended for performing the positioning measurement and the communication; and

determining a second level of accuracy associated with the one or more timing measurements based at least in part on the identification, wherein the level of accuracy associated with the one or more timing measurements is greater than the second level of accuracy associated with the one or more timing measurements.

10. The method of claim 7, wherein the positioning reference signal comprises a sounding reference signal.

11. The method of claim 1, further comprising:

identifying whether the positioning reference signal is transmitted concurrently with a channel based at least in part on the configuration signal, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

12. The method of claim 1, further comprising:

identifying whether a transmission power associated with the positioning reference signal satisfies a threshold based at least in part on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

13. The method of claim 12, further comprising:

identifying that the transmission power associated with the positioning reference signal satisfies the threshold; and

14. The method of claim 12, further comprising:

identifying that the transmission power associated with the positioning reference signal does not satisfy the threshold; and

15. The method of claim 12, further comprising:

reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

16. The method of claim 1, further comprising:

identifying a duration of the positioning reference signal during a time period based at least in part on the configuration signal;

determining whether the duration of the positioning reference signal satisfies a threshold; and

bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal based at least in part on determining that the duration of the positioning reference signal satisfies the threshold, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

17. The method of claim 16, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

18. The method of claim 1, further comprising:

identifying a bandwidth associated with the positioning reference signal based at least in part on the configuration signal; and

determining that the bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold, wherein the accuracy level associated with the one or more timing measurements is not proportional to the bandwidth associated with the positioning reference signal.

19. The method of claim 18, further comprising:

reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the positioning reference signal bandwidth threshold is based at least in part on the UE capability.

20. The method of claim 1, further comprising:

identifying a location of a sub-band associated with scheduled transmission of the positioning reference signal based at least in part on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the location of the sub-band.

21. The method of claim 20, wherein an accuracy associated with a sub-band located at a center of a frequency band is greater than an accuracy associated with a sub-band located at an edge of the frequency band.

22. The method of claim 20, further comprising:

reporting, to a base station, a UE capability associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capability.

23. The method of claim 1, further comprising:

determining a second configuration for a second positioning reference signal;

determining one or more properties associated with the second positioning reference signal based at least in part on the second configuration; and

determining a second level of accuracy associated with a timing difference between reception of the positioning reference signal and transmission of the second positioning reference signal, wherein timing of reception of the positioning reference signal is based at least in part on identifying the one or more timing measurements associated with the positioning reference signal, and wherein the measurement report relates to the second level of accuracy.

24. The method of claim 1, wherein the one or more timing measurements comprise a group delay timing measurement, a transmission timing measurement, a reception timing measurement, or any combination thereof, the group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal.

25. The method of claim 1, wherein the accuracy level associated with the one or more timing measurements is different for a first frequency range and a second frequency range.

26. A method for wireless communication, comprising:

transmitting, to a User Equipment (UE), a configuration signal indicating a configuration for a positioning reference signal;

using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based at least in part on the one or more properties associated with the positioning reference signal; and

receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

27. The method of claim 26, further comprising:

scheduling one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof, and wherein the level of accuracy is based at least in part on scheduling the one or more measurement gaps, the one or more guard periods, or a combination thereof.

28. The method of claim 27, further comprising:

configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on scheduling the one or more measurement gaps and the one or more guard periods.

29. The method of claim 28, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

30. The method of claim 28, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

31. The method of claim 26, further comprising:

using the configuration signal to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

32. The method of claim 31, further comprising:

indicating that the positioning reference signal is intended for performing the positioning measurement; and

configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

33. The method of claim 31, wherein the positioning reference signal comprises a sounding reference signal.

34. The method of claim 26, further comprising:

using the configuration signal to indicate whether the positioning reference signal is transmitted simultaneously with a channel, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal.

35. The method of claim 26, further comprising:

using the configuration signal to indicate whether a transmission power associated with the positioning reference signal satisfies a threshold.

36. The method of claim 35, further comprising:

receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

37. The method of claim 26, further comprising:

using the configuration signal to indicate a duration of the positioning reference signal during a time period, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

38. The method of claim 26, further comprising:

using the configuration signal to indicate a bandwidth associated with the positioning reference signal.

39. The method of claim 38, further comprising:

receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein a positioning reference signal bandwidth threshold is based at least in part on the UE capability.

40. The method of claim 26, further comprising:

using the configuration signal to indicate a location of a sub-band associated with scheduled transmission of the positioning reference signal, wherein an accuracy associated with a sub-band located at a center of a frequency band is greater than an accuracy associated with a sub-band located at an edge of the frequency band.

41. The method of claim 40, further comprising:

receiving, from the UE, UE capabilities associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capabilities.

42. The method of claim 26, wherein the one or more timing measurements comprise a group delay timing measurement, a transmission timing measurement, a reception timing measurement, or any combination thereof, the group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal.

43. The method of claim 26, wherein the accuracy level associated with the one or more timing measurements is different for a first frequency range and a second frequency range.

44. An apparatus for wireless communications by a User Equipment (UE), comprising:

means for receiving a configuration signal indicating a configuration for positioning reference signals;

means for determining one or more properties associated with the positioning reference signal based at least in part on the configuration signal;

means for determining a level of accuracy associated with one or more timing measurements based, at least in part, on one or more timings associated with the positioning reference signal and the one or more properties associated with the positioning reference signal; and

means for transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

45. The apparatus of claim 44, further comprising:

means for determining an accuracy level associated with a transmission timing of a second positioning reference signal, an accuracy level associated with a reception timing of the positioning reference signal, an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof, based at least in part on the one or more properties associated with the positioning reference signal.

46. The apparatus of claim 44, further comprising:

means for identifying one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof; and

wherein means for determining the accuracy level further comprises means for determining the accuracy level based at least in part on identifying the one or more measurement gaps, the one or more guard periods, or a combination thereof.

47. The apparatus of claim 46, further comprising:

means for bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein identifying one or more timings associated with the second positioning reference signal comprises identifying one or more timing measurements associated with the second positioning reference signal, and bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on identifying the one or more measurement gaps and the one or more guard periods.

48. The apparatus of claim 47, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

49. The apparatus of claim 47, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

50. The apparatus of claim 44, further comprising:

means for identifying, based at least in part on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

51. The apparatus of claim 50, further comprising:

means for identifying that the positioning reference signal is intended for performing the positioning measurement; and

means for bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

52. The apparatus of claim 50, further comprising:

means for identifying that the positioning reference signal is intended for performing the positioning measurements and the communication; and

means for determining a second level of accuracy associated with the one or more timing measurements based at least in part on the identification, wherein the level of accuracy associated with the one or more timing measurements is greater than the second level of accuracy associated with the one or more timing measurements.

53. The apparatus of claim 52, wherein the positioning reference signal comprises a sounding reference signal.

54. The apparatus of claim 44, further comprising:

means for identifying whether the positioning reference signal is transmitted concurrently with a channel based at least in part on the configuration signal, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on the identification.

55. The apparatus of claim 44, further comprising:

means for identifying whether a transmission power associated with the positioning reference signal satisfies a threshold based at least in part on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

56. The apparatus of claim 55, further comprising:

means for identifying that the transmission power associated with the positioning reference signal satisfies the threshold; and

57. The apparatus of claim 55, further comprising:

means for identifying that the transmission power associated with the positioning reference signal does not satisfy the threshold; and

58. The apparatus of claim 55, further comprising:

means for reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

59. The apparatus of claim 44, further comprising:

means for identifying a duration of the positioning reference signal during a time period based at least in part on the configuration signal;

means for determining whether the duration of the positioning reference signal satisfies a threshold; and

means for bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal based at least in part on determining that the duration of the positioning reference signal satisfies the threshold, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

60. The apparatus of claim 59, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

61. The apparatus of claim 44, further comprising:

means for identifying a bandwidth associated with the positioning reference signal based at least in part on the configuration signal; and

means for determining that the bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold, wherein the level of accuracy associated with the one or more timing measurements is not proportional to the bandwidth associated with the positioning reference signal.

62. The apparatus of claim 61, further comprising:

means for reporting, to a base station, UE capabilities associated with a frequency band, a combination of frequency bands, or both, wherein the positioning reference signal bandwidth threshold is based at least in part on the UE capabilities.

63. The apparatus of claim 44, further comprising:

means for identifying a location of a subband associated with scheduled transmission of the positioning reference signal based at least in part on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the location of the subband.

64. The apparatus of claim 63, wherein an accuracy associated with a sub-band located at a center of a frequency band is greater than an accuracy associated with a sub-band located at an edge of the frequency band.

65. The apparatus of claim 63, further comprising:

means for reporting, to a base station, UE capabilities associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capabilities.

66. The apparatus of claim 65, further comprising:

means for determining a second configuration for a second positioning reference signal;

means for determining one or more properties associated with the second positioning reference signal based at least in part on the second configuration; and

means for determining a second level of accuracy associated with a timing difference between reception of the positioning reference signal and transmission of the second positioning reference signal, wherein timing of reception of the positioning reference signal is based at least in part on identifying the one or more timing measurements associated with the positioning reference signal, and wherein the measurement report relates to the second level of accuracy.

67. The apparatus of claim 44, wherein the one or more timing measurements comprise a group delay timing measurement, a transmission timing measurement, a reception timing measurement, or any combination thereof, the group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal.

68. The apparatus of claim 44, wherein the accuracy level associated with the one or more timing measurements is different for a first frequency range and a second frequency range.

69. An apparatus for wireless communication:

means for transmitting a configuration signal indicating a configuration for positioning reference signals to a User Equipment (UE);

means for indicating one or more properties associated with the positioning reference signal using the configuration signal, wherein a level of accuracy associated with one or more timing measurements is determined based at least in part on the one or more properties associated with the positioning reference signal; and

means for receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

70. The apparatus of claim 69, further comprising:

means for scheduling one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof, and wherein the level of accuracy is based at least in part on scheduling the one or more measurement gaps, the one or more guard periods, or a combination thereof.

71. The apparatus of claim 70, further comprising:

means for configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on scheduling the one or more measurement gaps and the one or more guard periods.

72. The apparatus of claim 71, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

73. The apparatus of claim 71, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

74. The apparatus of claim 69, further comprising:

means for using the configuration signal to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

75. The apparatus of claim 74, further comprising:

means for indicating that the positioning reference signal is intended for performing the positioning measurement; and

means for configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

76. The apparatus of claim 74, wherein the positioning reference signal comprises a sounding reference signal.

77. The apparatus of claim 69, further comprising:

means for indicating, using the configuration signal, whether the positioning reference signal is transmitted simultaneously with a channel, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal.

78. The apparatus of claim 69, further comprising:

means for using the configuration signal to indicate whether a transmission power associated with the positioning reference signal satisfies a threshold.

79. The apparatus of claim 78, further comprising:

means for receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

80. The apparatus of claim 69, further comprising:

means for indicating, using the configuration signal, a duration of the positioning reference signal during a time period, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

81. The apparatus of claim 69, further comprising:

means for using the configuration signal to indicate a bandwidth associated with the positioning reference signal.

82. The apparatus of claim 81, further comprising:

means for receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein a positioning reference signal bandwidth threshold is based at least in part on the UE capability.

83. The apparatus of claim 69, further comprising:

means for indicating a location of a sub-band associated with scheduled transmission of the positioning reference signal using the configuration signal, wherein an accuracy associated with a sub-band located at a center of a frequency band is greater than an accuracy associated with a sub-band located at an edge of the frequency band.

84. The apparatus of claim 83, further comprising:

means for receiving, from the UE, UE capabilities associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capabilities.

85. An apparatus for wireless communications by a User Equipment (UE), comprising:

one or more transceivers;

one or more memories; and

one or more processors electronically coupled to the one or more memories and the one or more transceivers, the one or more processors configured to:

receiving, via the one or more transceivers, a configuration signal indicating a configuration for positioning reference signals;

determining one or more properties associated with the positioning reference signal based at least in part on the configuration signal;

transmitting, via the one or more transceivers, a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

86. The apparatus of claim 85, wherein the instructions are further executable by the processor to cause the apparatus to:

87. The apparatus of claim 85, wherein the instructions are further executable by the processor to cause the apparatus to:

88. The apparatus of claim 87, wherein the instructions are further executable by the processor to cause the apparatus to:

89. The apparatus of claim 88, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

90. The apparatus of claim 88, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

91. An apparatus for wireless communication, comprising:

one or more transceivers;

one or more memories; and

one or more processors electronically coupled to the one or more memories and the one or more transceivers, the one or more processors configured to:

transmitting, to a User Equipment (UE), a configuration signal indicating a configuration for a positioning reference signal;

receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

92. The apparatus of claim 91, wherein the instructions are further executable by the processor to cause the apparatus to:

93. The apparatus of claim 92, wherein the instructions are further executable by the processor to cause the apparatus to:

94. The apparatus of claim 93, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

95. The apparatus of claim 93, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

96. The apparatus of claim 91, wherein the instructions are further executable by the processor to cause the apparatus to:

using the configuration signal to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

97. A non-transitory computer-readable medium storing code for wireless communications by a User Equipment (UE), the code comprising instructions executable by a processor for:

receiving a configuration signal indicating a configuration for positioning reference signals;

determining one or more properties associated with the positioning reference signal based at least in part on the configuration signal;

98. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor for:

transmitting, to a User Equipment (UE), a configuration signal indicating a configuration for a positioning reference signal;

receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Background

The following relates generally to wireless communications and more particularly to group delay timing accuracy for positioning.

Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-advanced (LTE-a) systems, or LTE-a Pro systems, and fifth generation (5G) systems that may be referred to as New Radio (NR) systems. These systems may employ various techniques, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include several base stations or network access nodes, each supporting communication for multiple communication devices simultaneously, which may otherwise be referred to as User Equipment (UE).

Wireless communication networks may implement techniques to track the location of UEs in the wireless communication network. In some cases, the UE may transmit to or receive from the base station a positioning reference signal, which the network may use to determine the UE's position. Conventional techniques of accurately performing timing measurements on positioning reference signals are deficient, and positioning techniques in wireless communication systems can be improved.

Disclosure of Invention

The described technology relates to improved methods, systems, devices, and apparatus to support group delay timing accuracy for positioning in New Radios (NRs). In general, the described techniques provide for utilizing properties of positioning reference signals to identify a level of accuracy for performing one or more timing measurements. The wireless communication system may support configuration signals that may be transmitted by the base station. The configuration signal may indicate a configuration for positioning reference signals. A User Equipment (UE) may receive the configuration signal and may determine one or more properties associated with the positioning reference signal based on the configuration signal. In some cases, the UE may determine an accuracy level associated with one or more timing measurements based on one or more properties associated with the positioning reference signal. For example, the UE may determine an expected accuracy of one or more timing measurements based on one or more transmission or measurement properties. The UE may then transmit a measurement report associated with the positioning reference signal to the base station. In some examples, the measurement report may relate to a level of accuracy associated with the one or more timing measurements.

A method of wireless communication by a UE is described. The method can comprise the following steps: receiving a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based on the configuration signal; determining a level of accuracy associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

An apparatus for wireless communication by a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: receiving a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based on the configuration signal; determining a level of accuracy associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Another apparatus for wireless communications by a UE is described. The apparatus may include means for: receiving a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based on the configuration signal; determining a level of accuracy associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

A non-transitory computer-readable medium storing code for wireless communication by a UE is described. The code may include instructions executable by a processor for: receiving a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based on the configuration signal; determining a level of accuracy associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: determining, based on the one or more properties associated with the positioning reference signal, an accuracy level associated with a transmission timing of a second positioning reference signal, an accuracy level associated with a reception timing of the positioning reference signal, and an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods may be scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof; and wherein determining the level of accuracy further comprises determining the level of accuracy based on identifying the one or more measurement gaps, the one or more guard periods, or a combination thereof.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain may be based on identifying the one or more measurement gaps and the one or more guard periods. In some examples, identifying one or more timings associated with the second positioning reference signal may include identifying one or more timing measurements associated with the second positioning reference signal.

In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the at least a portion of the transmit chain or the receive chain includes a surface acoustic wave filter.

In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying, based on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof, wherein the level of accuracy associated with the one or more timing measurements may be based on the identification.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying that the positioning reference signal may be intended for performing the positioning measurement; and bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements can be based on bypassing the at least a portion of the transmit chain.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying that the positioning reference signal may be intended for performing the positioning measurement and the communication; and determining a second level of accuracy associated with the one or more timing measurements based on the identification, wherein the level of accuracy associated with the one or more timing measurements may be greater than the second level of accuracy associated with the one or more timing measurements.

In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the positioning reference signal comprises a sounding reference signal.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying whether the positioning reference signal may be transmitted simultaneously with a channel based on the configuration signal, wherein the channel may be in the same component carrier as the positioning reference signal or may be in a different component carrier than the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements may be based on the identification.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying whether a transmission power associated with the positioning reference signal satisfies a threshold based on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements may be based on the identification.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying that the transmission power associated with the positioning reference signal satisfies the threshold; and bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements can be based on bypassing the at least a portion of the transmit chain.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying that the transmission power associated with the positioning reference signal does not satisfy the threshold; and determining a second level of accuracy associated with the one or more timing measurements based on the identification, wherein the level of accuracy associated with the one or more timing measurements may be greater than the second level of accuracy associated with the one or more timing measurements.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold may be based on the UE capability.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying a duration of the positioning reference signal during a time period based on the configuration signal; determining whether the duration of the positioning reference signal satisfies a threshold; and bypassing at least a portion of a transmit chain associated with a scheduled transmission of the positioning reference signal based on determining that the duration of the positioning reference signal satisfies the threshold, wherein the accuracy level associated with the one or more timing measurements may be based on bypassing the at least a portion of the transmit chain.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying a bandwidth associated with the positioning reference signal based on the configuration signal; and determining that the bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold, wherein the level of accuracy associated with the one or more timing measurements and the bandwidth associated with the positioning reference signal may not be proportional.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the positioning reference signal bandwidth threshold can be based on the UE capability.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: identifying a location of a subband associated with scheduled transmission of the positioning reference signal based on the configuration signal, wherein the accuracy level associated with the one or more timing measurements may be based on the location of the subband.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the accuracy associated with the sub-band located at the center of the frequency band may be greater than the accuracy associated with the sub-band located at the edges of the frequency band.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: reporting, to a base station, a UE capability associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal may be based on the UE capability.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: determining a second configuration for a second positioning reference signal; determining one or more properties associated with the second positioning reference signal based on the second configuration; and determining a second level of accuracy associated with a timing difference between reception of the positioning reference signal and transmission of the second positioning reference signal, wherein timing of reception of the positioning reference signal is based on identifying the one or more timing measurements associated with the positioning reference signal, and wherein the measurement report may relate to the second level of accuracy.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the one or more timing measurements include a group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal, a transmission timing measurement, a reception timing measurement, or any combination thereof.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the level of accuracy associated with the one or more timing measurements may be different for the first frequency range and the second frequency range.

A method of wireless communication is described. The method can comprise the following steps: transmitting a configuration signal indicating a configuration for a positioning reference signal to the UE; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

An apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmitting a configuration signal indicating a configuration for a positioning reference signal to the UE; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Another apparatus for wireless communication is described. The apparatus may include means for: transmitting a configuration signal indicating a configuration for a positioning reference signal to the UE; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

A non-transitory computer-readable medium storing code for wireless communication is described. The code may include instructions executable by a processor for: transmitting a configuration signal indicating a configuration for a positioning reference signal to the UE; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: scheduling one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods may be scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof, and wherein the level of accuracy may be based on scheduling the one or more measurement gaps, the one or more guard periods, or a combination thereof.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: configuring the UE to bypass at least a portion of a transmit chain or a receive chain associated with scheduled transmission of the positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain may be based on scheduling the one or more measurement gaps and the one or more guard periods.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: the configuration signal is used to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: indicating that the positioning reference signal may be intended for performing the positioning measurement; and configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements may be based on bypassing the at least a portion of the transmit chain.

In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the positioning reference signal comprises a sounding reference signal.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: the configuration signal is used to indicate whether the positioning reference signal can be transmitted simultaneously with a channel, wherein the channel may be in the same component carrier as the positioning reference signal or may be in a different component carrier from the positioning reference signal.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: the configuration signal is used to indicate whether a transmission power associated with the positioning reference signal meets a threshold.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: a UE capability associated with a frequency band, a combination of frequency bands, or both is received from the UE, wherein the threshold may be based on the UE capability.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: using the configuration signal to indicate a duration of the positioning reference signal during a time period, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: a UE capability associated with a frequency band, a combination of frequency bands, or both is received from the UE, wherein the positioning reference signal bandwidth threshold may be based on the UE capability.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: the configuration signal is used to indicate a location of a sub-band associated with scheduled transmission of the positioning reference signal, wherein an accuracy associated with the sub-band located at a center of a frequency band may be greater than an accuracy associated with the sub-band located at an edge of the frequency band.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: receiving, from the UE, a UE capability associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal may be based on the UE capability.

Brief Description of Drawings

Fig. 1 illustrates an example of a wireless communication system that supports group delay timing accuracy for positioning in a New Radio (NR) in accordance with aspects of the present disclosure.

Fig. 2 illustrates an example of a wireless communication system that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Fig. 3A and 3B illustrate examples of timing estimation to support group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Fig. 4 illustrates an example of a process flow to support group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Fig. 5 and 6 show block diagrams of apparatuses supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Fig. 7 illustrates a block diagram of a UE communications manager supporting group delay timing accuracy for positioning in NR in accordance with aspects of the present disclosure.

Fig. 8 shows a diagram of a system including a device that supports group delay timing accuracy for positioning in NRs, according to aspects of the present disclosure.

Fig. 9 and 10 show block diagrams of apparatuses supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Fig. 11 shows a block diagram of a base station communications manager supporting group delay timing accuracy for positioning in NR, in accordance with aspects of the present disclosure.

Fig. 12 shows a diagram of a system including a device that supports group delay timing accuracy for positioning in NRs, according to aspects of the present disclosure.

Fig. 13 to 16 show flowcharts illustrating methods of supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure.

Detailed Description

A User Equipment (UE) in a wireless communication system may communicate with one or more base stations. The serving base station of the UE may track the location or position of the UE. Various positioning techniques may be used to track the UE. In some cases, a UE may be configured to transmit uplink positioning reference signals to a serving base station and one or more neighboring base stations. Additionally or alternatively, the UE may be configured to receive downlink positioning reference signals from the serving base station and one or more neighboring base stations. In some cases, the UE may estimate its position based on measurements (e.g., based on reference signal time difference measurements). Additionally or alternatively, the UE may transmit a measurement report for one or more positioning reference signals to the serving base station. Conventional systems may have drawbacks in estimating the location of the UE. For example, the UE may experience variations in group delay, which may include section-specific delay, frequency-specific delay, path-specific delay, temperature-specific delay, or any combination thereof.

According to one or more aspects of the present disclosure, a UE may receive a configuration signal. In some aspects, a UE may receive a configuration signal from a base station. In some cases, the configuration signal may indicate a configuration for positioning reference signals. In some cases, the configuration signal may be associated with a downlink positioning reference signal transmitted by a serving or neighboring cell. The UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. In one example, the one or more properties may include identifying one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of uplink positioning reference signals. Additionally or alternatively, using one or more properties, the UE may determine whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

In some cases, the UE may determine one or more timings associated with the positioning reference signals. Additionally, the UE may determine an accuracy level associated with one or more timing measurements based on one or more properties associated with the positioning reference signal. For example, the UE may determine an expected accuracy of one or more timing measurements based on one or more transmission or measurement properties. In some examples, the UE may determine an accuracy level associated with a timing of transmission of the positioning reference signal, an accuracy level associated with a timing of reception of the positioning reference signal, and an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof. The UE may then transmit a measurement report associated with the positioning reference signal to the base station. In some examples, the measurement report may relate to a level of accuracy associated with the one or more timing measurements.

Aspects of the present disclosure are initially described in the context of a wireless communication system. Aspects of the present disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts related to group delay timing accuracy of positioning in NRs.

Fig. 1 illustrates an example of a wireless communication system 100 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The wireless communication system 100 includes base stations 105, UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-advanced (LTE-a) network, an LTE-a Pro network, or a New Radio (NR) network. In some cases, wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low cost and low complexity devices.

The base station 105 may communicate wirelessly with the UE115 via one or more base station antennas. The base stations 105 described herein may include or may be referred to by those skilled in the art as base transceiver stations, radio base stations, access points, radio transceivers, node bs, evolved node bs (enbs), next generation node bs or gigabit node bs (any of which may be referred to as gnbs), home node bs, home evolved node bs, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UEs 115 described herein may be capable of communicating with various types of base stations 105 and network equipment, including macro enbs, small cell enbs, gbbs, relay base stations, and so forth.

Each base station 105 may be associated with a particular geographic coverage area 110, supporting communication with various UEs 115 in that particular geographic coverage area 110. Each base station 105 may provide communication coverage for a respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE115 may utilize one or more carriers. The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UEs 115 to the base stations 105 or downlink transmissions from the base stations 105 to the UEs 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

The geographic coverage area 110 of a base station 105 can be divided into sectors that form a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 may provide communication coverage for a macro cell, a small cell, a hot spot, or other type of cell, or various combinations thereof. In some examples, the base stations 105 may be mobile and thus provide communication coverage for a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and the overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE/LTE-A/LTE-A Pro or NR network in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

The term "cell" refers to a logical communication entity for communicating with a base station 105 (e.g., on a carrier) and may be associated with an identifier to distinguish between neighboring cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID)) operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., Machine Type Communication (MTC), narrowband internet of things (NB-IoT), enhanced mobile broadband (eMBB), or others) that may provide access for different types of devices. In some cases, the term "cell" may refer to a portion (e.g., a sector) of geographic coverage area 110 over which a logical entity operates.

The UEs 115 may be dispersed throughout the wireless communication system 100, and each UE115 may be stationary or mobile. A UE115 may also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, station, terminal, or client. The UE115 may also be a personal electronic device, such as a cellular telephone, a Personal Digital Assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, a UE115 may also refer to a Wireless Local Loop (WLL) station, an internet of things (IoT) device, an internet of everything (IoE) device, or an MTC device, among others, which may be implemented in various items such as appliances, vehicles (e.g., cars, bicycles, etc.), appliances, wearable devices (e.g., watches, glasses, clothing, shoes, jewelry, head mounted displays, etc.), home devices (e.g., locks, lights, displays, etc.), video/audio devices (e.g., televisions, speakers, etc.), health diagnostic devices, therapeutic devices, and so forth.

Some UEs 115, such as MTC or IoT devices, may be low cost or low complexity devices and may provide automated communication between machines (e.g., communication via machine-to-machine (M2M)). M2M communication or MTC may refer to data communication techniques that allow devices to communicate with each other or with the base station 105 without human intervention. In some examples, M2M communications or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application that may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of a machine. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based business charging.

Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communications (e.g., a mode that supports unidirectional communication via transmission or reception but does not simultaneously transmit and receive). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for the UE115 include entering a power saving "deep sleep" mode when not engaged in active communication, or operating on a limited bandwidth (e.g., according to narrowband communication). In some cases, the UE115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communication for these functions.

In some cases, the UE115 may also be able to communicate directly with other UEs 115 (e.g., using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more UEs of the group of UEs 115 communicating with D2D may be within the geographic coverage area 110 of the base station 105. The other UEs 115 in the group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some cases, groups of UEs 115 communicating via D2D may utilize a one-to-many (1: M) system, where each UE115 transmits to every other UE115 in the group. In some cases, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving base stations 105.

The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 over backhaul links 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other over backhaul links 134 (e.g., via X2, Xn, or other interfaces) directly (e.g., directly between base stations 105) or indirectly (e.g., via the core network 130).

The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an Evolved Packet Core (EPC) that may include at least one Mobility Management Entity (MME), at least one serving gateway (S-GW), and at least one Packet Data Network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the EPC. User IP packets may be communicated through the S-GW, which may itself be connected to the P-GW. The P-GW may provide IP address allocation as well as other functions. The P-GW may be connected to network operator IP services. The operator IP services may include access to the internet, intranets, IP Multimedia Subsystem (IMS), or Packet Switched (PS) streaming services.

At least some network devices, such as base stations 105, may include subcomponents, such as access network entities, which may be examples of Access Node Controllers (ANCs). Each access network entity may communicate with UEs 115 through a number of other access network transport entities, which may be referred to as radio heads, intelligent radio heads, or transmission/reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or consolidated into a single network device (e.g., base station 105).

Wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the 300MHz to 3GHz region is referred to as an Ultra High Frequency (UHF) region or a decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves can be blocked or redirected by building and environmental features. However, these waves may penetrate a variety of structures sufficiently for a macro cell to provide service to a UE115 located indoors. UHF-wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100km) than transmission using smaller and longer waves of the High Frequency (HF) or Very High Frequency (VHF) portions of the spectrum below 300 MHz.

The wireless communication system 100 may also operate in the ultra-high frequency (SHF) region using a frequency band from 3GHz to 30GHz, also referred to as a centimeter frequency band. The SHF region includes frequency bands (such as the 5GHz industrial, scientific, and medical (ISM) frequency bands) that may be opportunistically used by devices that may be able to tolerate interference from other users.

The wireless communication system 100 may also operate in the Extremely High Frequency (EHF) region of the spectrum (e.g., from 30GHz to 300GHz), which is also referred to as the millimeter-band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communication between the UE115 and the base station 105, and EHF antennas of respective devices may be even smaller and more closely spaced than UHF antennas. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, propagation of EHF transmissions may experience even greater atmospheric attenuation and shorter ranges than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the frequency band usage designated across these frequency regions may differ by country or regulatory agency.

In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ Licensed Assisted Access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5GHz ISM band. When operating in the unlicensed radio frequency spectrum band, wireless devices, such as base stations 105 and UEs 115, may employ a Listen Before Talk (LBT) procedure to ensure that frequency channels are clear before transmitting data. In some cases, operation in the unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in the licensed band. Operations in the unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or any combination thereof. Duplexing in the unlicensed spectrum may be based on Frequency Division Duplexing (FDD), Time Division Duplexing (TDD), or a combination of both.

In some examples, a base station 105 or UE115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., base station 105) equipped with multiple antennas and a receiving device (e.g., UE 115) equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Also, the receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiver device; and multi-user MIMO (MU-MIMO), in which a plurality of spatial layers are transmitted to a plurality of devices.

Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., base station 105 or UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array such that signals propagating in a particular orientation relative to the antenna array undergo constructive interference while other signals undergo destructive interference. The adjustment to the signals communicated via the antenna elements may include the transmitting or receiving device applying a particular amplitude and phase shift to the signals carried via each antenna element associated with the device. The adjustment associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to an antenna array of a transmitting device or a receiving device, or relative to some other orientation).

In one example, the base station 105 may use multiple antennas or antenna arrays for beamforming operations for directional communication with the UEs 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times in different directions by the base station 105, which may include a signal being transmitted according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the base station 105 or a receiving device, such as UE 115) to identify beam directions used by the base station 105 for subsequent transmission and/or reception.

Some signals, such as data signals associated with a particular recipient device, may be transmitted by the base station 105 in a single beam direction (e.g., a direction associated with the recipient device, such as the UE 115). In some examples, a beam direction associated with transmission along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, the UE115 may receive one or more signals transmitted by the base station 105 in different directions, and the UE115 may report an indication to the base station 105 of the signal for which it is received at the highest signal quality or other acceptable signal quality. Although the techniques are described with reference to signals transmitted by the base station 105 in one or more directions, the UE115 may use similar techniques for transmitting signals multiple times in different directions (e.g., to identify beam directions used by the UE115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

A receiving device (e.g., UE115, which may be an example of a mmW receiving device) may attempt multiple receive beams when receiving various signals from base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a recipient device may attempt multiple receive directions by: receiving via different antenna sub-arrays, processing received signals according to different antenna sub-arrays, receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, either of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned in a beam direction determined based on listening from different receive beam directions (e.g., the beam direction determined to have the highest signal strength, highest signal-to-noise ratio, or other acceptable signal quality based on listening from multiple beam directions).

In some cases, the antennas of a base station 105 or UE115 may be located within one or more antenna arrays that may support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some cases, the antennas or antenna arrays associated with the base station 105 may be located at different geographic locations. The base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UEs 115. Likewise, the UE115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

In some cases, the wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communication of the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use hybrid automatic repeat request (HARQ) to provide retransmission by the MAC layer, thereby improving link efficiency. In the control plane, a Radio Resource Control (RRC) protocol layer may provide for establishment, configuration, and maintenance of RRC connections of radio bearers supporting user plane data between the UE115 and the base station 105 or core network 130. At the physical layer, transport channels may be mapped to physical channels.

In some cases, the UE115 and the base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood that data will be correctly received on the communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), Forward Error Correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to some other time interval.

The time interval in LTE or NR may be in a basic unit of time (which may for example refer to the sampling period T)_s1/30,720,000 seconds). The time intervals of the communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as T_f＝307,200T_s. The radio frame may be identified by a System Frame Number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each having a duration of 0.5ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix preceding each symbol period). Each symbol period may contain 2048 sample periods, excluding the cyclic prefix. In some cases, a subframe may be the smallest scheduling unit of the wireless communication system 100 and may be referred to as a Transmission Time Interval (TTI). In other cases, the minimum of the wireless communication system 100The scheduling units may be shorter than the subframe or may be dynamically selected (e.g., in bursts of shortened tti (sTTI) or in selected component carriers using sTTI).

In some wireless communication systems, a slot may be further divided into a plurality of mini-slots containing one or more symbols. In some examples, a symbol of a mini-slot or a mini-slot may be a minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or operating frequency band. Further, some wireless communication systems may implement timeslot aggregation, where multiple timeslots or mini-timeslots are aggregated together and used for communication between the UE115 and the base station 105.

The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications over the communication link 125. For example, the carrier of the communication link 125 may comprise a portion of a radio frequency spectrum band operating according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. The carriers may be associated with predefined frequency channels (e.g., evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) absolute radio frequency channel numbers (EARFCNs)) and may be located according to a channel grid for discovery by UEs 115. The carriers may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or discrete fourier transform spread OFDM (DFT-S-OFDM)).

The organization of the carriers may be different for different radio access technologies (e.g., LTE-A, LTE-A Pro, NR). For example, communications on a carrier may be organized according to TTIs or slots, each of which may include user data as well as control information or signaling supporting decoding of the user data. The carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling that coordinates operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers.

The physical channels may be multiplexed on the carriers according to various techniques. The physical control channels and physical data channels may be multiplexed on the downlink carrier using, for example, Time Division Multiplexing (TDM) techniques, Frequency Division Multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. In some examples, control information transmitted in the physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a carrier or "system bandwidth" of the wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80MHz) of a carrier of a particular radio access technology. In some examples, each served UE115 may be configured to operate over part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured for operation using a narrowband protocol type (e.g., an "in-band" deployment of narrowband protocol types) associated with a predefined portion or range within a carrier (e.g., a set of subcarriers or RBs).

In a system employing MCM technology, a resource element may include one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements the UE115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE115 may be. In a MIMO system, wireless communication resources may refer to any combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers), and using multiple spatial layers may further improve the data rate of communication with the UE 115.

Devices of the wireless communication system 100 (e.g., base stations 105 or UEs 115) may have a hardware configuration that supports communication over a particular carrier bandwidth or may be configurable to support communication over one carrier bandwidth of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 and/or a UE115 that supports simultaneous communication via carriers associated with more than one different carrier bandwidth.

The wireless communication system 100 may support communication with UEs 115 over multiple cells or carriers, a feature that may be referred to as carrier aggregation or multi-carrier operation. The UE115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more characteristics including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in unlicensed spectrum or shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by UEs 115 that are unable to monitor the entire carrier bandwidth or are otherwise configured to use a limited carrier bandwidth (e.g., to conserve power).

In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of the other component carriers. Shorter symbol durations may be associated with increased spacing between adjacent subcarriers. Devices utilizing an eCC, such as UE115 or base station 105, may transmit a wideband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. Flexibility in eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectra. In some examples, NR sharing spectrum may improve spectrum utilization and spectral efficiency, particularly through dynamic vertical (e.g., across frequency domains) and horizontal (e.g., across time domains) sharing of resources.

A UE in a wireless communication system may communicate with one or more base stations. Each base station may provide a cell that extends within the coverage area of the base station. The UE may move within the coverage area and the cell may provide wireless communications (e.g., NR communications, etc.) to the UE. The serving base station of the UE may track the location or position of the UE. Various positioning techniques may be used to track the UE. In some cases, a UE may be configured to transmit uplink positioning reference signals to a serving base station and one or more neighboring base stations. In some cases, a UE may be configured to receive downlink positioning reference signals from a serving base station and one or more neighboring base stations. For uplink positioning reference signals, a base station and a neighboring base station may exchange information associated with reception of the uplink positioning reference signals, such as reference signal time difference measurements made by the UE. The network (e.g., including one or more base stations) may then determine a location of the UE based on the one or more uplink positioning reference signal transmissions. For downlink positioning reference signal transmission, the UE may receive a positioning reference signal from each of one or more base stations. In some cases, the UE may estimate its position based on measurements (e.g., based on reference signal time difference measurements). Additionally or alternatively, the UE may transmit a measurement report for one or more positioning reference signals to the serving base station.

In some conventional systems, the UE may experience a delay in processing the positioning reference signals. For example, the delay may be based on radio frequency front end processing at the UE (e.g., processing at one or more antennas). In some cases, the UE may calibrate the radio frequency front end group delay such that the measurement report reflects the radio frequency front end group delay. Thus, in conventional systems, the UE may not be able to accurately perform timing measurements due to variations in group delay. As one example, the UE may detect a portion-specific delay when performing measurements associated with positioning reference signals. Additionally or alternatively, the UE may be pre-configured (such as via the manufacturer) to experience a portion-specific delay in performing measurements associated with the positioning reference signals. Other sources of group delay variation may be frequency-specific, path-specific, temperature-specific, or any combination thereof. Thus, there may be a need to improve accuracy in performing one or more timing measurements.

In accordance with one or more aspects of the present disclosure, the UE115 may include a UE communications manager (not shown) as depicted in the examples of fig. 5, 6, and 7 and the base station 105 may include a base station communications manager (not shown) as depicted in the examples of fig. 9, 10, and 11. The UE115 may receive the configuration signal. In some cases, the configuration signal may indicate a configuration for positioning reference signals. That is, the UE115 may receive a configuration related to downlink positioning reference signals transmitted by a serving or neighboring cell. The UE115 may determine one or more properties associated with the positioning reference signal based on the configuration signal. Additionally, the UE115 may determine one or more properties associated with the uplink positioning reference signal based on the configuration signal. In one example, the one or more properties may include identifying one or more measurement gaps and one or more guard periods associated with scheduled transmission of uplink positioning reference signals. In some cases, the UE115 may identify one or more timings and may determine an accuracy level associated with one or more timing measurements based on identifying one or more properties associated with the uplink positioning reference signal-e.g., the UE115 may determine an expected accuracy of one or more timing measurements based on one or more transmission or measurement properties. In some examples, the one or more timing measurements may include group delay calibration, transmission timing measurements, reception timing measurements, or any combination thereof. The UE115 may then transmit a measurement report associated with the positioning reference signal to the base station 105. In some examples, the measurement report may relate to a level of accuracy associated with the one or more timing measurements. In some cases, the UE115 may determine an accuracy level associated with one or more timing measurements based on receiving an indication from the base station 105 (such as in a configuration signal or a configuration message). In some examples, the accuracy level may be a positioning accuracy associated with a location measurement uncertainty at the UE 115.

Fig. 2 illustrates an example of a wireless communication system 200 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The wireless communication system 200 may include one or more base stations 105 and one or more UEs 115, including, for example, base station 105-a, base station 105-b, base station 105-c, and UE 115-a. The base station 105 described in fig. 2 may be an example of the base station 105 described with reference to fig. 1. In some examples, base station 105-a, base station 105-B, and base station 105-c may be referred to as network equipment and/or a next generation node B (gNB). The UE 115-a may be an example of the UE115 as described with reference to fig. 1. Base station 105-a may be an example of a serving base station 105 for UE 115-a, while base stations 105-b and 105-c may be examples of neighboring base stations 105.

The wireless communication system 200 may illustrate operations and communications between a base station 105 and a UE115 that support determining accuracy of timing measurements for positioning in NRs. Each base station 105 may provide a cell, where the base station 105 may serve UEs 115 within the coverage area of the cell. The UE 115-a may move within the coverage area and the cell may provide wireless communications to the UE 115-a. In some cases, UE 115-a may be allocated a portion of bandwidth to communicate with a serving base station. Some examples of the wireless communication system 200 may support improved timing accuracy determination procedures for positioning in NRs. In some cases, the UE115 may support identifying properties of positioning reference signals and utilizing these properties to reduce delays in timing measurements.

In some instances, the wireless communication system 200 may support beamformed communication, where the base station 105 and the UE 115-a may communicate using directional beamformed transmissions. For this and other reasons (e.g., mobility management, etc.), the base station 105 (e.g., serving base station 105-a) may track the location of the UE 115-a and other UEs 115. Base station 105 (such as one or more of base station 105-a, base station 105-b, and base station 105-c) and UE 115-a may implement a variety of techniques to support location management of wireless devices within a wireless communication system.

In some examples, a wireless network including a base station 105-a may track the geographic location or position of a UE 115-a. Various positioning techniques may be used to track UE 115-a. Some techniques for determining the location of UE 115-a may include network assisted Global Navigation Satellite System (GNSS) techniques (e.g., Global Positioning System (GPS)), barometric pressure sensing, Wireless Local Area Network (WLAN) signaling, bluetooth signaling, and terrestrial beacon system techniques, among others. Some implementations of the techniques may be based on a Radio Access Technology (RAT) used for wireless communications between the UE 115-a and the base station 105. For example, techniques for tracking via enhanced cell ID and uplink positioning using downlink positioning may be based on RATs. Additionally or alternatively, the base station 105-a and other neighboring base stations 105-b and 105-c may transmit signals of interest, such as positioning reference signals. The UE 115-a may receive signals of interest from base stations 105 (e.g., base station 105-a, base station 105-b, and base station 105-c) and perform measurements thereon. These measurements may include observed time difference of arrival measurements, such as reference signal time difference estimates.

In some cases, the UE 115-a may report measurements or estimates made from positioning reference signals, such as uplink positioning reference signals 220 and downlink positioning reference signals 215, to a base station (e.g., base station 105-a). In some cases, the base station 105-a may use these measurements to detect or estimate the location of the UE 115-a. Additionally or alternatively, UE 115-a may estimate its position based on these measurements and transmit the estimate of the position to base station 105-a. In some examples, the estimate or measurement may be sent to a Location Management Function (LMF), and the LMF may estimate a location or position of UE 115-a.

In conventional wireless communication systems, the UE 115-a may experience a delay in processing the positioning reference signals. For example, the delay may be based on radio frequency front end processing at the UE 115-a (e.g., processing at one or more antennas). In such a case, the UE 115-a is configured to calibrate the radio frequency front end group delay such that measurement reports (such as reports indicative of measurements or estimates made from positioning reference signals) reflect the radio frequency front end group delay experienced at the UE 115-a. In such a case, upon receiving the measurement report, the base station 105-a may be configured to subtract the indicated radio frequency front end group delay in order to calculate the distance to the UE 115-a. However, conventional wireless communication systems do not account for other sources of group delay variation. As one example, the UE 115-a may detect a delay that is part (such as hardware present in the analog and digital paths) specific when performing measurements associated with positioning reference signals. In some examples, multiple instances of a hardware reference design may be tested to measure part-to-part variations. Additionally or alternatively, the UE 115-a may experience frequency-specific delays in measurements associated with positioning reference signals. In some cases, the measurement accuracy associated with the positioning reference signal may be based on a portion of the frequency band in which the positioning reference signal is received. In one example, the measured difference between a positioning reference signal transmitted at a lower band edge of the 5GHz band and a positioning reference signal transmitted at a higher band edge may be 500 ps. In such a case, the UE 115-a may be configured to calibrate per channel to avoid differences in timing measurements.

In some examples, the UE 115-a may experience path-specific delays in performing measurements associated with positioning reference signals. For example, the delay may be based on the selected antenna or panel, transmission power, transmission processing operations, reception power, reception processing operations, or any combination thereof. In some cases, the UE 115-a may experience a temperature-specific delay in performing measurements associated with positioning reference signals. In such examples, UE 115-a may maintain a temperature calibration table. Additionally or alternatively, the UE 115-a may experience other sources of error (such as calibration error, measurement accuracy, etc.) in performing measurements associated with positioning reference signals.

In conventional wireless communication systems, some portions or blocks of a transmitter or receiver of the UE 115-a may have relatively large group delay variations. As one example, a surface acoustic wave filter for the sub-6 frequency range may have a large group delay variation. Table 1 shows example group delay variations for a surface acoustic wave filter. Table 2 shows example group delay variations for transmit antennas. Table 3 shows example group delay variations for the receive antennas.

TABLE 1

TABLE 2

TABLE 3

In accordance with one or more aspects of the present disclosure, a UE 115-a and a base station 105-a may implement techniques to support enhanced positioning schemes and techniques. In particular, one or more aspects of the present disclosure provide for the UE 115-a and the base station 105-b to determine an accuracy associated with at least one of group delay calibration, transmission timing, reception timing, or any combination thereof. For example, the base station 105-a may transmit a configuration signal 210 to the UE 115-a indicating a configuration for a signal of interest (e.g., a positioning reference signal), and the UE 115-a may determine an accuracy level associated with one or more timing measurements based on one or more properties associated with the positioning reference signal as indicated in the configuration. In some cases, the UE 115-a may receive the configuration signal 210 in higher layer signaling (such as RRC signaling).

In some cases, the UE 115-a may be configured to transmit uplink positioning reference signals 220 to the serving base station 105 and one or more neighboring base stations 105. In some cases, the UE 115-a may be configured to receive downlink positioning reference signals 215 from the serving base station 105 and one or more neighboring base stations 105. Upon receiving the uplink PRS positioning reference signals, the base station 105-a, the base station 105-b, and the base station 105-c may exchange information associated with the reception of the uplink positioning reference signals 220, such as reference signal time difference measurements made by the UE 115-a, for example, via a backhaul link. The network (e.g., including the base station) may then determine the location of the UE 115-a based on the one or more uplink positioning reference signals 220. For downlink positioning reference signal technology, the UE 115-a may receive a downlink positioning reference signal 215 from each of one or more base stations 105 (e.g., base station 105-a, base station 105-b, base station 105-c, or any combination thereof). In some cases, the UE may estimate its position based on measurements (e.g., based on reference signal time difference measurements). Additionally or alternatively, the UE 115-a may transmit measurement reports for one or more positioning reference signals (such as uplink positioning reference signals 220 and/or downlink positioning reference signals 215) to the serving base station 105-a.

As previously discussed, the positioning techniques may be UE-based or UE-assisted. In UE-based positioning, the UE 115-a may perform positioning estimation without feeding back reference signal time difference measurements to the network (e.g., via the base station 105). In some cases, the UE 115-a may perform UE-based positioning estimation based on the received downlink positioning reference signals 215. In another example, the UE 115-a may receive positioning reference signal measurement reports corresponding to one or more transmitted uplink positioning reference signals 220 from a plurality of base stations 105 in the network. The UE115 may determine a position estimate from the received positioning reference signal measurement reports. In UE-assisted positioning, the UE 115-a may provide reference signal time difference measurements, and the network may use the reference signal time difference measurements to perform positioning estimation. The UE 115-a may be configured for a UE-based mode, a UE-assisted mode, or a mode that incorporates aspects of both. The positioning mode used may be based on connection initialization configuration, downlink control information, Medium Access Control (MAC) Control Elements (CEs), etc.

The wireless communication system 200 can support positioning reference signal resources 225. For example, the base station 105-a may configure positioning reference signal resources 225 for the UE 115-a. The positioning reference signal resources 225 may be allocated across a bandwidth or frequency domain. The base station 105-a may use the configuration signal 210 to configure the positioning reference signal resources 225. In some cases, the configuration may include one or more configurations for positioning reference signal resources 225. For example, the base station 105-a may indicate a frequency domain allocation of positioning reference signal resources 225 to the UE 115-a and use the positioning reference signal resources 225 to receive downlink positioning reference signals 215 or transmit uplink positioning reference signals 220.

As discussed herein, the downlink positioning reference signal 215 may be transmitted by a serving or neighboring cell, which may be configured to be transmitted in the bandwidth of the positioning reference signal resource 225. Additionally or alternatively, the uplink positioning reference signal may be transmitted by the UE 115-a to a serving or neighboring cell. The UE 115-a may similarly transmit positioning reference signals in a positioning reference signal bandwidth for the uplink positioning reference signals 220. The UE 115-a may determine an expected accuracy of one or more timing measurements based on one or more transmission or measurement properties. In some examples, the one or more timing measurements may include group delay calibration, transmission timing measurements, reception timing measurements, or any combination thereof.

In accordance with one or more aspects of the present disclosure, the UE 115-a may identify one or more measurement gaps associated with scheduled transmission of positioning reference signals (such as uplink positioning reference signals 220 and/or downlink positioning reference signals 215). Additionally or alternatively, the UE 115-a may identify one or more guard periods associated with scheduled transmission of positioning reference signals. In some cases, the one or more measurement gaps and/or the one or more guard periods may be scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof. That is, the UE 115-a may identify measurement gaps before or after the downlink positioning reference signal 215 or the uplink positioning reference signal 220. The measurement gap may span multiple symbols (e.g., OFDM symbols) during which UE 115-a is not expected to transmit or receive any other signals (e.g., in up to all carriers). In some cases, a base station (such as base station 105-a) may signal a measurement gap to UE 115-a. In some cases, the measurement gap may be indicated as 0 symbols long, or not at all.

After identifying one or more measurement gaps and/or one or more guard periods, the UE 115-a may determine an accuracy of a timing measurement associated with transmission of a positioning reference signal. In some cases, the positioning reference signal may include a sounding reference signal. In particular, the UE 115-a may bypass at least a portion of a transmit chain associated with scheduled transmission of uplink positioning reference signals or bypass at least a portion of a receive chain associated with scheduled reception of downlink positioning reference signals (such as uplink positioning reference signals 220 and/or downlink positioning reference signals 215). For example, to improve the accuracy of timing measurements, the UE 115-a may bypass one or more blocks or portions of the transmit chain during transmission of positioning reference signals. The one or more blocks or portions of the transmit chain may include surface acoustic wave filters. In such a case, the UE 115-a may be configured to turn off the surface acoustic wave filter and perform timing measurements during the measurement gaps and/or guard periods. After completing the timing measurements, the UE 115-a may turn on the surface acoustic wave filter. That is, the UE 115-a may stop its regular transmission while performing measurements associated with positioning reference signals, and may then turn on the surface acoustic wave filter to continue its regular transmission. As described herein with reference to table 1, the group delay of the surface acoustic wave filters varies greatly. Thus, by bypassing the use of surface acoustic wave filters, the UE 115-a may improve the accuracy associated with one or more timing measurements of positioning reference signals (such as the uplink positioning reference signals 220 and/or the downlink positioning reference signals 215).

In some cases, the UE 115-a may receive the configuration signal 210 and may identify whether a positioning reference signal (such as an uplink positioning reference signal 220 and/or a downlink positioning reference signal 215) is intended for performing positioning measurements, for performing communications, or any combination thereof. In some cases, the UE 115-a may perform this identification based on the received configuration signal 210. If the UE 115-a determines that a positioning reference signal (such as a sounding reference signal) is intended for positioning purposes, the UE 115-a may bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal. For example, the UE 115-a may bypass one or more blocks of a transmit chain associated with a positioning reference signal. Additionally or alternatively, the UE 115-a may transmit the positioning reference signal in a manner that increases group delay or timing accuracy. In some cases, bypassing one or more blocks of a transmit chain associated with a positioning reference signal may be detrimental to communication purposes. In such a case, the UE 115-a may identify that a positioning reference signal (such as the uplink positioning reference signal 220) is intended for performing both positioning measurements and communications. The UE 115-a may then determine a second level of accuracy associated with the one or more timing measurements based on the identification. The level of accuracy associated with positioning reference signals intended for performing positioning measurements may be greater than a second level of accuracy associated with positioning reference signals intended for performing both positioning measurements and communications. That is, if the UE 115-a determines that a positioning reference signal (such as a sounding reference signal) is intended for both positioning and communication, the UE 115-a may not be able to perform a change in the transmit chain structure and the group delay/timing accuracy may be low.

In accordance with one or more aspects of the present disclosure, the UE 115-a may receive the configuration signal 210 and may determine whether the positioning reference signal is transmitted simultaneously with the channel. In some cases, the UE 115-a may perform this determination based on the received configuration signal 210. In some cases, the channel may be in the same component carrier as the positioning reference signal or may be in a different component carrier than the positioning reference signal. In some examples, the UE 115-a may determine an accuracy level associated with the one or more timing measurements based on the determination. The UE 115-a may determine that a change in the transmission of the positioning reference signal may affect other physical channel transmissions on the same component carrier or a different component carrier.

According to some implementations, the UE 115-a may determine whether a transmission power associated with the positioning reference signal satisfies a threshold. In some cases, the UE 115-a may receive the configuration signal 210. For example, the UE 115-a may receive the configuration signal 210 from the base station 105-a and may perform this determination based on the configuration signal 210. In some cases, an accuracy level associated with one or more timing measurements may be based on this identification. If the UE 115-a determines that the transmission power associated with the positioning reference signal satisfies the threshold, the UE 115-a may bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, such as the uplink positioning reference signal 220. In one example, the UE 115-a may determine that bypassing a portion of a transmit chain may prevent transmission requirements if a transmission power associated with a positioning reference signal (such as a sounding reference signal) is greater than a threshold. In such cases, the UE 115-a may determine a second level of accuracy associated with the timing measurements of the positioning reference signals. Alternatively, if the UE 115-a determines that the transmission power associated with the positioning reference signal is less than the threshold, the UE 115-a may choose to bypass a portion of the transmit chain (such as a surface acoustic wave filter) to achieve higher timing measurement accuracy. In some cases, the threshold may be or may be based on the UE capabilities 205. In some cases, UE 115-a may report UE capability 205 to a base station (such as base station 105-a). The UE capabilities 205 may be associated with a frequency band, a combination of frequency bands, or both.

In accordance with one or more aspects of the present disclosure, the UE 115-a may identify a duration of the positioning reference signal during a time period. In some cases, the UE 115-a may identify the duration based on the configuration signal 210. The UE 115-a may then determine whether the duration of the positioning reference signal satisfies a threshold. For example, UE 115-a may determine whether a duration of a positioning reference signal burst during a particular time period is configured as a short burst. Upon determining that the duration of the positioning reference signal satisfies the threshold, the UE 115-a may bypass at least a portion of a transmit chain associated with the scheduled transmission of the positioning reference signal. That is, if the UE 115-a determines that the positioning reference signal (e.g., sounding reference signal) is configured as a short burst of resources over a certain period of time (e.g., 1ms), the UE 115-a may bypass the surface acoustic wave filter and achieve higher accuracy. In some cases, the duration of the positioning reference signal may include a number of symbols.

In some cases, the UE 115-a may identify a bandwidth associated with a positioning reference signal. For example, the UE 115-a may identify the bandwidth based on the configuration signal 210. Although the UE 115-a is discussed as receiving configuration signals from a base station, it is understood that the UE 115-a may receive configuration signals from different devices. In some cases, UE 115-a may receive a configuration signal from a device using a different communication technology than UE 115-a. For example, the UE 115-a may operate using NR technology and may receive configuration signals from devices operating using Wi-Fi technology or bluetooth technology. In some cases, UE 115-a may receive the configuration signal using a peer-to-peer connection. For example, the UE 115-a may receive a configuration signal from a nearby device (such as a second UE115 or IoT device) using a peer-to-peer connection. In some examples, the UE 115-a may determine that a bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold. In some cases, the accuracy level associated with the one or more timing measurements and the bandwidth associated with the positioning reference signal may not be proportional. For example, the accuracy level may not be proportional to the bandwidth of the sounding reference signal, as high bandwidths may be associated with different transmit-receive calibrations. As a result, different positioning reference signal bandwidth thresholds may be associated with different accuracies.

In accordance with one or more aspects of the disclosure, the UE 115-a may identify a location of a subband associated with scheduled transmission of a positioning reference signal. For example, the UE 115-a may identify whether the positioning reference signal is transmitted at an edge of a subband or at a center of a subband. In some cases, the accuracy associated with a sub-band located at the center of the frequency band may be greater than the accuracy associated with a sub-band located at the edge of the frequency band. In some examples, the location of the sub-band may be based on the UE capabilities reported to the base station 105-a. Additionally or alternatively, the UE 115-a may determine that an accuracy level associated with the one or more timing measurements is different for the first frequency range and the second frequency range.

In some cases, the UE 115-a may transmit a measurement report 230 associated with a positioning reference signal. The measurement report 230 may relate to an accuracy level associated with the one or more timing measurements. The base station may receive the measurement report 230 and may determine the location of the UE 115-a based on the measurement report 230.

Fig. 3A illustrates an example of a timing estimation 300 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. Fig. 3B illustrates an example of a timing estimation 350 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. In some examples, the timing estimate 300 and the timing estimate 350 may implement aspects of the wireless communication system 100.

As depicted in the examples of fig. 3A and 3B, the base station may determine a location of the UE location based on the time of arrival estimate. As depicted in fig. 3A, a base station (such as base station 105) may be at time T₁Where downlink reference signals are transmitted. The UE may be at time T₂A downlink reference signal is received. In some cases, the UE may be at time T₂The time of arrival of the downlink reference signal is measured. In some cases, the UE may be at T₃Transmits an uplink reference signal. Additionally, the UE may transmit a UE measurement report T_Rx→Tx. For example, UE measurement report T_Rx→TxMay indicate a time difference (i.e., T) between receiving a downlink reference signal and transmitting an uplink reference signal₃-T₂). The base station may be at time T₄An uplink reference signal is received. The base station may then transmit at time T₄Measure the arrival time of uplink reference signal and determine the gNB measurement report T_Tx→Rx. In particular, the base station may determine a gbb measurement report T_Tx→Rx＝T₄-T₁(or the time difference between transmitting the downlink reference signal and receiving the uplink reference signal). The base station may then be based onThe gNB measurement report and the UE measurement report to calculate the distance to the UE. In one example, the base station may calculate the distance d as:

referring to fig. 3B, a base station (such as base station 105) may be at time T₁Where downlink reference signals are transmitted. The downlink reference signal may be at time T₁₁Is transmitted from the radio frequency front end of the base station. The UE may be at time T₂₁A downlink reference signal is received. I.e. at time T₂₁An antenna at the UE downlink reference signal, and a radio frequency front end of the UE may be at time T₂The reception of the downlink reference signal is completed. In some cases, the UE may be at time T₂The time of arrival of the downlink reference signal is measured. In some cases, the UE may be at T₃Transmits the uplink reference signal, and the uplink reference signal may be at time T₃₁Is transmitted through the radio frequency front end of the UE. In some cases, the UE may transmit a time difference (i.e., T) indicating between receiving the downlink reference signal and transmitting the uplink reference signal₃-T₂) UE measurement report T of_Rx→Tx. The base station may be at time T₄Receives the uplink reference signal, and the radio frequency front end of the base station may be at time T₄An uplink reference signal is received. The base station may be at time T₄Measure the arrival time of the uplink reference signal and determine the gNB measurement report T based on the time difference between the transmission of the downlink reference signal and the reception of the uplink reference signal_Tx→Rx. In some cases, the gbb measurement report T_Tx→RxMay be based on the relative downlink/uplink frame timing and canonical location of the uplink reference signal. In some cases, the UE may experience group delay due to the presence of the radio frequency front end. In some cases, the UE may calibrate the rf front end group delay and compensate for the rf front end. In such cases, the UE measurement report may indicate a group delay associated with the radio frequency front end. The base station may then subtractThe calibrated RF front end group delay is used to calculate the distance to the UE.

Fig. 4 illustrates an example of a process flow 400 to support group delay timing accuracy for positioning in NR according to aspects of the present disclosure. In some examples, process flow 400 may implement aspects of wireless communication system 100. Process flow 400 may include a base station 105-d and a UE 115-c, which may be examples of corresponding devices described with reference to fig. 1 through 3. The UE 115-c and the base station 105-d may support accuracy level determination of various timing measurements in the NR.

In the following description of process flow 400, operations between a UE 115-c and a base station 105-d may be transmitted in a different order than the exemplary order shown. The operations performed by the UE 115-c or the base station 105-d may be performed in a different order or at a different time than the exemplary order shown. Some operations may also be excluded from the process flow 400 or other operations may be added to the process flow 400. Moreover, UE 115-c and base station 105-d are not intended to be representative, as the described techniques may be associated with any number of devices.

At 405, the base station 105-d may transmit a configuration signal indicating a configuration for positioning reference signals. The UE 115-c may receive the configuration signal via higher layer signaling, such as RRC signaling. In some cases, the configuration signal may indicate one or more properties associated with the positioning reference signal.

At 410, the UE 115-c may determine one or more properties associated with the positioning reference signal based on the configuration signal. As depicted in the example of fig. 4, UE 115-c may optionally determine a plurality of properties associated with positioning reference signals in order to determine an accuracy level associated with timing measurements.

At 415, the UE 115-c may optionally identify one or more measurement gaps associated with at least one scheduled transmission of a positioning reference signal (such as an uplink positioning reference signal). Additionally or alternatively, the UE 115-c may identify one or more guard periods associated with at least one scheduled transmission of a positioning reference signal. In some cases, UE 115-c may determine that the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof.

At 420, the UE 115-c may determine an intended use of a reference signal (such as a positioning reference signal). In some examples, the UE 115-c may receive an indication of the intended use of the positioning reference signal (such as included in the configuration signal). For example, the base station 105-d may indicate the intended use of the positioning reference signal in the configuration signal. In some examples, the base station 105-d may use one or more bits to indicate an intended use of the positioning reference signal.

In some cases, the UE 115-c may identify, based on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof. Additionally or alternatively, the UE 115-c may determine the intended use of the reference signal based on determining whether the reference signal is a positioning reference signal. In some cases, if the reference signal is a positioning reference signal, the UE 115-c may determine that the reference signal is intended for performing measurements. Alternatively, the UE 115-c may identify that the positioning reference signal is intended for performing positioning measurements and communications. In some examples, the positioning reference signal may comprise a sounding reference signal.

At 425, the UE 115-c may determine whether a transmission power associated with the positioning reference signal satisfies a threshold. In some cases, the identification is based on a configuration signal. In some examples, the UE 115-c may identify that the transmission power associated with the positioning reference signal satisfies the threshold. Alternatively, the UE 115-c may determine that the transmission power associated with the positioning reference signal does not meet the threshold. In some cases, the UE 115-c may report the UE capabilities to the base station 105-d. In some cases, the UE capabilities may be associated with a frequency band, a combination of frequency bands, or both. In such examples, the threshold may be based on UE capabilities.

At 430, the UE 115-c may determine an accuracy level associated with one or more timing measurements based on one or more properties associated with the positioning reference signal. In some cases, the UE 115-c may identify (such as receive, acquire, or otherwise identify) one or more timing measurements prior to determining the accuracy level. For example, the UE 115-c may determine an accuracy level associated with a timing of transmission of the positioning reference signal, an accuracy level associated with a timing of reception of the positioning reference signal, and an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof.

At 435, the UE 115-c may optionally bypass at least a portion of a transmit chain associated with scheduled transmission of a reference signal (such as a positioning reference signal). In some cases, bypassing the at least a portion of the transmit chain is based on identifying the one or more measurement gaps and the one or more guard periods. Additionally or alternatively, the UE 115-c may bypass at least a portion of a transmit chain associated with scheduled transmission of positioning reference signals based on identifying that the positioning reference signals are intended for performing positioning measurements. Additionally or alternatively, the UE 115-c may bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal based on identifying that a transmission power associated with the positioning reference signal satisfies a threshold. In some cases, UE 115-c may bypass one or more components that are part of the transmit chain. For example, the one or more components may include one or more filters (such as surface acoustic wave filters), one or more power amplifiers, or any combination thereof.

At 440, the UE 115-c may transmit a measurement report associated with the positioning reference signal. In some cases, the measurement report may relate to a level of accuracy associated with the one or more timing measurements.

Fig. 5 illustrates a block diagram 500 of an apparatus 505 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The device 505 may be an example of aspects of a UE115 as described herein. The device 505 may include a receiver 510, a UE communication manager 515, and a transmitter 520. The device 505 may also include a processor. In one example, device 505 may be an example of an embodiment of system 800 as depicted in the example of fig. 8. Additionally or alternatively, device 505 may be an example of a portion of system 800. Each of these components may be in communication with each other (e.g., via one or more buses). In some examples, the receiver 510 and the transmitter 520 may be implemented separately or in integrated transceiver hardware/software.

Receiver 510 may include an Rx processor 525, a MIMO detector 530, a filter 535, and a power amplifier 540. Receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to group delay timing accuracy of positioning in NR, etc.). Information may be passed to other components of device 505. The receiver 510 may be an example of aspects of the transceiver 820 described with reference to fig. 8. Receiver 510 may utilize a single antenna or a set of antennas. Each of the subcomponents of these receivers 510 may be in communication with each other (e.g., via one or more buses). The receiver 510, or subcomponents thereof, may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, receiver 510 or subcomponents thereof may be separate and distinct components in accordance with various aspects of the present disclosure.

Receiver 510 may receive a downlink signal from a base station (such as base station 105) and may provide the received signal to one or more demodulators (not shown). In some cases, a demodulator may be included in Rx processor 525. A demodulator may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples and process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 530 may obtain received symbols from all Rx processors 525, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The Rx processor 525 may further process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE115 to a data output, and provide decoded control information to the UE communications manager 515.

The UE communication manager 515 may receive a configuration signal indicating a configuration for positioning reference signals. For example, the UE communication manager 515 may receive the configuration signal through the receiver 510. The UE communications manager 515 may determine one or more properties associated with the positioning reference signal based on the configuration signal; one or more timings associated with the positioning reference signals are determined or otherwise identified. In one example, the UE communication manager 515 may bypass the filter 535 and/or the power amplifier 540 associated with the scheduled reception of the positioning reference signal. Additionally or alternatively, the UE communication manager 515 may bypass the filter 555 and/or the power amplifier 560 associated with the scheduled transmission of the positioning reference signal. In some cases, the UE communication manager 515 may decide to bypass the filter based on one or more properties. The UE communication manager 515 may then determine an accuracy level associated with one or more timing measurements based on determining one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal. The UE communications manager 515, in conjunction with the transmitter 520, may transmit a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements. In one example, an accuracy level or accuracy approximation of one or more timing measurements may be included in the measurement report. The UE communications manager 515 may be an example of aspects of the UE communications manager 810 described herein.

The UE communications manager 515 or its subcomponents may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the UE communication manager 515 or its subcomponents may be performed by a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure. It is to be appreciated that the UE communications manager 515 or subcomponents thereof may be implemented without a modem baseband or processor. The UE communications manager 515, or subcomponents thereof, may be implemented using a transceiver, a sensor core, an application processor, or any combination thereof. Additionally or alternatively, one or more components included in the UE communications manager 515 may be implemented in a transceiver, a sensor core, an application processor, or any combination thereof. In accordance with one or more aspects of the present disclosure, one or more components included in the UE communications manager 515 may instruct the UE communications manager 515 to bypass at least a portion of a transmit chain associated with a scheduled transmission of a positioning reference signal.

The UE communications manager 515, or subcomponents thereof, may be physically located in various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, the UE communications manager 515 or subcomponents thereof may be separate and distinct components in accordance with various aspects of the present disclosure. In some examples, the UE communications manager 515 or subcomponents thereof may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or any combination thereof, in accordance with various aspects of the present disclosure.

The transmitter 520 may include a Tx processor 545, a Tx MIMO detector 550, a filter 555, and a power amplifier 560. The transmitter 520 may transmit signals generated by other components of the device 505, such as the UE communications manager 515. In some examples, the transmitter 520 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 may be an example of aspects of the transceiver 820 described with reference to fig. 8. The transmitter 520 may use one or more antennas. Each of the subcomponents of these transmitters 520 may be in communication with each other (e.g., via one or more buses). The transmitter 520, or subcomponents thereof, may be physically located at various locations, including being distributed such that portions of the functionality are implemented at different physical locations by one or more physical components. In some examples, the transmitter 520 or subcomponents thereof may be separate and distinct components in accordance with various aspects of the disclosure.

In some cases, the Tx processor 545 may receive and process data from a data source. In some cases, the data source may be a positioning reference signal transmitted from the UE communications manager 515. The Tx processor 545 may also generate reference symbols for a reference signal. The symbols from Tx processor 545 may be precoded by a Tx MIMO processor. In some cases, a Tx MIMO processor may be included in Tx processor 545. The symbols may then be transmitted to a base station.

Fig. 6 shows a block diagram 600 of a device 605 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The device 605 may be an example of aspects of the device 505 or the UE115 as described herein. The device 605 may include a receiver 610, a UE communication manager 615, and a transmitter 640. The device 605 may also include a processor. In one example, device 605 may be an example of an embodiment of system 800 as depicted in the example of fig. 8. Additionally or alternatively, device 605 may be an example of a portion of system 800. Each of these components may be in communication with each other (e.g., via one or more buses). In some examples, the receiver 610 and the transmitter 640 may be implemented separately or in integrated transceiver hardware/software.

Receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to group delay timing accuracy for positioning in NR, etc.). The information may be passed to other components of the device 605. The receiver 610 may be an example of aspects of the transceiver 820 described with reference to fig. 8. Receiver 610 may utilize a single antenna or a set of antennas.

The UE communications manager 615 may be an example of aspects of the UE communications manager 515 as described herein. UE communications manager 615 may include a configuration signal component 620, a properties component 625, an accuracy level component 630, and a measurement reporting component 635. The UE communication manager 615 may be an example of aspects of the UE communication manager 810 described herein.

The configuration signal component 620 may receive a configuration signal indicating a configuration for positioning reference signals. The properties component 625 may determine one or more properties associated with the positioning reference signal based on the configuration signal. The accuracy level component 630 can determine one or more timings associated with the positioning reference signals; and determining a level of accuracy associated with the one or more timing measurements based on determining the one or more timings and the one or more properties associated with the positioning reference signal. The measurement reporting component 635 may transmit a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Transmitter 640 may transmit signals generated by other components of device 605. In some examples, the transmitter 640 may be co-located with the receiver 610 in a transceiver module. For example, the transmitter 640 may be an example of aspects of the transceiver 820 described with reference to fig. 8. The transmitter 640 may use one or more antennas.

Fig. 7 illustrates a block diagram 700 of a UE communications manager 705 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The UE communication manager 705 may be an example of aspects of the UE communication manager 515, the UE communication manager 615, or the UE communication manager 810 described herein. UE communications manager 705 may include a configuration signal component 710, a properties component 715, an accuracy level component 720, a measurement reporting component 725, a measurement gap component 730, a bypass component 735, an identification component 740, a synchronous transmission identification component 745, a transmission power component 750, a reporting component 755, a duration component 760, a bandwidth component 765, and a sub-band location component 770. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

The configuration signal component 710 may receive a configuration signal indicating a configuration for positioning reference signals. The configuration signal component 710 may determine a second configuration for a second positioning reference signal. The properties component 715 may determine one or more properties associated with the positioning reference signal based on the configuration signal. The properties component 715 may determine one or more properties associated with the second positioning reference signal based on the second configuration. The accuracy level component 720 may determine one or more timings associated with the positioning reference signals; and determining a level of accuracy associated with the one or more timing measurements based on determining the one or more timings and the one or more properties associated with the positioning reference signal. The accuracy level component 720 may determine a second accuracy level associated with a timing difference between the reception of the positioning reference signal and the transmission of the second positioning reference signal, wherein the timing of the reception of the positioning reference signal is based on identifying the one or more timing measurements associated with the positioning reference signal, and wherein the measurement report relates to the second accuracy level.

In some cases, the one or more timing measurements include a group delay timing measurement, a transmission timing measurement, a reception timing measurement, or any combination thereof. In some cases, the group delay timing measurement may be associated with reception of the positioning reference signal and transmission of a second positioning reference signal. In some cases, the level of accuracy associated with the one or more timing measurements is different for the first frequency range and the second frequency range. The measurement reporting component 725 may transmit a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

In some examples, the accuracy level component 720 may determine an accuracy level associated with a transmission timing of a second positioning reference signal, an accuracy level associated with a reception timing of the positioning reference signal, and an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof, based on the one or more properties associated with the positioning reference signal.

In some examples, accuracy level component 720 may determine a second accuracy level associated with the one or more timing measurements based on the identification, wherein the accuracy level associated with the one or more timing measurements is greater than the second accuracy level associated with the one or more timing measurements.

The measurement gap component 730 can identify one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of a positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof. In some examples, determining the level of accuracy further comprises determining the level of accuracy based on identifying the one or more measurement gaps, the one or more guard periods, or a combination thereof.

The bypass component 735 can bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain is based on identifying the one or more measurement gaps and the one or more guard periods. In some cases, identifying one or more timings associated with the second positioning reference signal may include identifying one or more timing measurements associated with the second positioning reference signal. In some cases, the at least a portion of the transmit chain or the receive chain includes a surface acoustic wave filter. In some cases, the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

The identifying component 740 may identify, based on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof, wherein the accuracy level associated with the one or more timing measurements is based on the identification. In some examples, the bypassing component 735 may bypass at least a portion of a transmit chain associated with the scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based on bypassing the at least a portion of the transmit chain.

In some examples, the identifying component 740 may identify that the positioning reference signal is intended for use in performing positioning measurements. In some examples, the identifying component 740 may identify that the positioning reference signal is intended for performing positioning measurements and communications. In some cases, the positioning reference signal includes a sounding reference signal.

The synchronization transmission identifying component 745 may identify whether the positioning reference signal is transmitted concurrently with a channel based on the configuration signal, wherein the channel is in the same component carrier as the positioning reference signal or in a different component carrier from the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based on the identification.

Transmit power component 750 may identify whether a transmit power associated with the positioning reference signal satisfies a threshold based on the configuration signal, wherein the accuracy level associated with the one or more timing measurements is based on the identification.

In some cases, transmission power component 750 can identify that the transmission power associated with the positioning reference signal satisfies the threshold. In some cases, transmission power component 750 may identify that the transmission power associated with the positioning reference signal does not satisfy the threshold. In some examples, bypassing component 735 may bypass at least a portion of a transmit chain associated with a scheduled transmission of the positioning reference signal based on determining that the duration of the positioning reference signal satisfies the threshold, wherein the accuracy level associated with the one or more timing measurements is based on bypassing the at least a portion of the transmit chain.

Reporting component 755 may report a UE capability associated with a frequency band, a combination of frequency bands, or both, to a base station, wherein the threshold is based on the UE capability. The duration component 760 can identify a duration of the positioning reference signal during a time period based on the configuration signal. In some examples, the duration component 760 may determine whether the duration of the positioning reference signal satisfies a threshold. In some cases, the duration of the positioning reference signal includes a number of symbols and the time period includes 1 ms.

A bandwidth component 765 can identify a bandwidth associated with the positioning reference signal based on the configuration signal. In some examples, the bandwidth component 765 may determine that the bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold, wherein the accuracy level associated with the one or more timing measurements is not proportional to the bandwidth associated with the positioning reference signal. In some examples, bandwidth component 765 may report UE capabilities associated with a frequency band, a combination of frequency bands, or both to a base station, wherein the positioning reference signal bandwidth threshold is based on the UE capabilities.

A sub-band location component 770 may identify a location of a sub-band associated with scheduled transmission of the positioning reference signal based on the configuration signal, wherein the accuracy level associated with the one or more timing measurements is based on the location of the sub-band. In some examples, sub-band location component 770 may report a UE capability associated with the positioning reference signal to a base station, wherein the location of the sub-band associated with the scheduled transmission of the positioning reference signal is based on the UE capability. In some cases, the accuracy associated with sub-bands located at the center of the frequency band is greater than the accuracy associated with sub-bands located at the edges of the frequency band.

Fig. 8 shows a diagram of a system 800 including a device 805 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. Device 805 may be an example of or include various components of device 505, device 605, or UE115 as described herein. The apparatus 805 may include components for bi-directional voice and data communications, including components for transmitting and receiving communications, including a UE communications manager 810, an I/O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may be in electronic communication via one or more buses, such as bus 845.

The UE communications manager 810 may receive a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based on the configuration signal; determining one or more timings associated with a positioning reference signal; determining a level of accuracy associated with the one or more timing measurements based on determining the one or more timings and the one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

I/O controller 815 may manage input and output signals of device 805. I/O controller 815 may also manage peripheral devices that are not integrated into device 805. In some cases, I/O controller 815 may represent a physical connection or port to an external peripheral device. In some cases, I/O controller 815 may utilize an operating systemSystems, such as Or another known operating system. In other cases, I/O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I/O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 805 via I/O controller 815 or via a hardware component controlled by I/O controller 815.

The transceiver 820 may communicate bi-directionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 820 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 820 may also include a modem to modulate packets and provide the modulated packets to the antennas for transmission, as well as demodulate packets received from the antennas. In some cases, the wireless device may include a single antenna 825. However, in some cases, the device may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

Memory 830 may include RAM and ROM. The memory 830 may store computer-readable, computer-executable code 835 comprising instructions that, when executed, cause the processor to perform various functions described herein. In some cases, memory 830 may contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

Processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combinations thereof). In some cases, processor 840 may be configured to operate a memory array using a memory controller. In other cases, the memory controller can be integrated into processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks to support group delay timing accuracy for positioning in NRs).

Code 835 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. Code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, code 835 may not be directly executable by processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

Fig. 9 illustrates a block diagram 900 of an apparatus 905 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The device 905 may be an example of aspects of a base station 105 as described herein. The device 905 may include a receiver 910, a base station communications manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 910 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to group delay timing accuracy for positioning in NR, etc.). Information may be passed to other components of device 905. The receiver 910 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Receiver 910 can utilize a single antenna or a set of antennas.

Base station communications manager 915 may transmit a configuration signal to the UE indicating a configuration for positioning reference signals; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements. The base station communications manager 915 may be an example of aspects of the base station communications manager 1310 described herein.

The base station communications manager 915 or subcomponents thereof may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the base station communications manager 915 or subcomponents thereof may be performed by a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

The base station communications manager 915, or subcomponents thereof, may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, the base station communications manager 915 or subcomponents thereof may be separate and distinct components in accordance with various aspects of the present disclosure. In some examples, the base station communications manager 915 or subcomponents thereof may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or any combination thereof, in accordance with various aspects of the present disclosure.

Transmitter 920 may transmit signals generated by other components of device 905. In some examples, the transmitter 920 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Transmitter 920 may utilize a single antenna or a set of antennas.

Fig. 10 shows a block diagram 1000 of an apparatus 1005 supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The device 1005 may be an example of aspects of the device 905 or the base station 105 as described herein. The device 1005 may include a receiver 1010, a base station communication manager 1015, and a transmitter 1035. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 1010 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to group delay timing accuracy of positioning in NR, etc.). Information may be communicated to other components of the device 1005. The receiver 1010 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Receiver 1010 may utilize a single antenna or a set of antennas.

The base station communications manager 1015 may be an example of aspects of the base station communications manager 915 as described herein. The base station communication manager 1015 may include a configuration signal component 1020, a properties component 1025, and a measurement reporting component 1030. The base station communications manager 1015 may be an example of aspects of the base station communications manager 1310 described herein.

Configuration signal component 1020 may transmit a configuration signal to the UE indicating a configuration for positioning reference signals. The property component 1025 may use the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal. Measurement reporting component 1030 can receive a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

A transmitter 1035 may transmit signals generated by other components of the device 1005. In some examples, the transmitter 1035 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1035 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. The transmitter 1035 may utilize a single antenna or a set of antennas.

Fig. 11 shows a block diagram 1100 of a base station communications manager 1105 supporting group delay timing accuracy for positioning in NR in accordance with aspects of the present disclosure. The base station communications manager 1105 may be an example of aspects of the base station communications manager 915, the base station communications manager 1015, or the base station communications manager 1310 described herein. The base station communications manager 1105 can include a configuration signal component 1110, a properties component 1115, a measurement reporting component 1120, a scheduling component 1125, a bypass component 1130, an indication component 1135, and a capabilities component 1140. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

The configuration signal component 1110 may transmit a configuration signal to the UE indicating a configuration for positioning reference signals. Property component 1115 can use the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal. In some cases, the one or more timing measurements include a group delay timing measurement, a transmission timing measurement, a reception timing measurement, or any combination thereof. In some cases, the group delay timing measurement may be associated with reception of the positioning reference signal and transmission of a second positioning reference signal. In some cases, the level of accuracy associated with the one or more timing measurements is different for the first frequency range and the second frequency range. A measurement reporting component 1120 can receive a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

The scheduling component 1125 may schedule one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof, and wherein the accuracy level is based on scheduling the one or more measurement gaps, the one or more guard periods, or a combination thereof.

The bypass component 1130 may configure the UE to bypass at least a portion of a transmit chain associated with a scheduled transmission of the positioning reference signal or a receive chain associated with a scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain is based on scheduling the one or more measurement gaps and the one or more guard periods. In some cases, the at least a portion of the transmit chain or the receive chain includes a surface acoustic wave filter. In some cases, the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

An indicating component 1135 may use the configuration signal to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof. In some examples, the indicating component 1135 may indicate that the positioning reference signals are intended for performing positioning measurements. In some examples, indicating component 1135 may use the configuration signal to indicate whether the positioning reference signal is transmitted simultaneously with a channel, where the channel is in the same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal.

In some examples, the bypassing component 1130 may configure the UE to bypass at least a portion of a transmit chain associated with a scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based on bypassing the at least a portion of the transmit chain. In some examples, the indicating component 1135 may use the configuration signal to indicate whether a transmission power associated with the positioning reference signal meets a threshold.

In some examples, indicating component 1135 may use the configuration signal to indicate a duration of the positioning reference signal during a time period, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises 1 ms. In some examples, the indicating component 1135 may use the configuration signal to indicate a bandwidth associated with the positioning reference signal.

In some examples, indicating component 1135 may use the configuration signal to indicate a location of a subband associated with a scheduled transmission of the positioning reference signal, where an accuracy associated with the subband located at a center of the frequency band is greater than an accuracy associated with the subband located at an edge of the frequency band. In some cases, the positioning reference signal includes a sounding reference signal.

Capability component 1140 may receive UE capabilities associated with a frequency band, a combination of frequency bands, or both from the UE, wherein the threshold is based on the UE capabilities. In some examples, capability component 1140 may receive a UE capability associated with a frequency band, a combination of frequency bands, or both from the UE, wherein the positioning reference signal bandwidth threshold is based on the UE capability. In some examples, capability component 1140 may receive a UE capability associated with the positioning reference signal from the UE, wherein a location of a subband associated with the scheduled transmission of the positioning reference signal is based on the UE capability.

Fig. 12 shows a diagram of a system 1200 including a device 1205 that supports group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The device 1205 may be an example of, or include a component of, the device 905, the device 1005, or the base station 105 as described herein. The device 1205 may include components for two-way voice and data communications including components for transmitting and receiving communications including a base station communications manager 1210, a network communications manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communications manager 1245. These components may be in electronic communication via one or more buses, such as bus 1250.

The base station communication manager 1210 may transmit a configuration signal indicating a configuration for positioning reference signals to the UE; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

The network communications manager 1215 may manage communications with the core network (e.g., via one or more wired backhaul links). For example, the network communications manager 1215 may manage the delivery of data communications for client devices, such as one or more UEs 115.

The transceiver 1220 may communicate bi-directionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1220 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1220 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, as well as to demodulate packets received from the antenna. In some cases, the wireless device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

Memory 1230 may include RAM, ROM, or any combination thereof. The memory 1230 may store computer-readable code 1235 that includes instructions that, when executed by a processor (e.g., the processor 1240), cause the device to perform various functions described herein. In some cases, memory 1230 may contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

Processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combinations thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, a memory controller may be integrated into processor 1240. The processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause the device 1205 to perform various functions (e.g., functions or tasks to support group delay timing accuracy for positioning in NRs).

The inter-station communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communication manager 1245 may coordinate scheduling of transmissions to the UEs 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communication manager 1245 may provide an X2 interface within LTE/LTE-a wireless communication network technology to provide communication between base stations 105.

Code 1235 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. Code 1235 may be stored in a non-transitory computer-readable medium, such as system memory or other type of memory. In some cases, the code 1235 may not be directly executable by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

Fig. 13 shows a flow diagram illustrating a method 1300 of supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The operations of method 1300 may be implemented by UE115 or components thereof as described herein. For example, the operations of method 1300 may be performed by a UE communications manager as described with reference to fig. 5-8. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 1305, the UE may receive a configuration signal indicating a configuration for positioning reference signals. 1305 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1305 may be performed by a configuration signal component as described with reference to fig. 5-8. Additionally or alternatively, the means for performing 1305 may include, but is not necessarily limited to, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845, for example.

At 1310, the UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be performed by property components as described with reference to fig. 5 through 8. Additionally or alternatively, the means for performing 1310 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1315, the UE may determine an accuracy level associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal. In some cases, the UE may determine one or more timings associated with the positioning reference signals prior to determining the accuracy level. 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be performed by an accuracy level component as described with reference to fig. 5-8. Additionally or alternatively, the means for performing 1315 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1320, the UE may transmit a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements. 1320 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1320 may be performed by a measurement reporting component as described with reference to fig. 5 through 8. Additionally or alternatively, the means for performing 1320 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

Fig. 14 shows a flow diagram illustrating a method 1400 of supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The operations of method 1400 may be implemented by UE115 or components thereof as described herein. For example, the operations of method 1400 may be performed by a UE communications manager as described with reference to fig. 5-8. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 1405, the UE may receive a configuration signal indicating a configuration for positioning reference signals. 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed by the configuration signal component as described with reference to fig. 5 to 8. Additionally or alternatively, the means for performing 1405 may include, but is not necessarily limited to, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845, for example.

At 1410, the UE may determine one or more properties associated with the positioning reference signal based on the configuration signal. 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed by property components as described with reference to fig. 5 through 8. Additionally or alternatively, the means for performing 1410 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1415, the UE may identify that the positioning reference signal is intended for performing positioning measurements. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operation of 1415 may be performed by the identification component as described with reference to fig. 5 through 8. Additionally or alternatively, the means for performing 1415 may include, for example but not necessarily include, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1420, the UE may determine an accuracy level associated with one or more timing measurements based on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal. 1420 operations may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be performed by the accuracy level component as described with reference to fig. 5-8. Additionally or alternatively, the means for performing 1420 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1425, the UE may bypass at least a portion of a transmit chain associated with the scheduled transmission of the positioning reference signal. In some cases, the level of accuracy associated with the one or more timing measurements is based on bypassing the at least a portion of the transmit chain. 1425 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1425 may be performed by a bypass component as described with reference to fig. 5-8. Additionally or alternatively, means for performing 1425 may (but need not necessarily) include, for example, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845.

At 1430, the UE may transmit a measurement report associated with the positioning reference signal. In some cases, the measurement report relates to an accuracy level associated with the one or more timing measurements. 1430 may be performed according to the methods described herein. In some examples, aspects of the operations of 1430 may be performed by a measurement reporting component as described with reference to fig. 5-8. Additionally or alternatively, the means for performing 1430 may include, but is not necessarily limited to, the I/O controller 815, the antenna 825, the transceiver 820, the UE communications manager 810, the memory 830 (including the code 835), the processor 840, and/or the bus 845, for example.

Fig. 15 shows a flow diagram illustrating a method 1500 of supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The operations of method 1500 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 1500 may be performed by a base station communications manager as described with reference to fig. 9-12. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

At 1505, the base station may transmit a configuration signal to the UE indicating a configuration for positioning reference signals. 1505 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1505 may be performed by a configuration signal component as described with reference to fig. 9-12. Additionally or alternatively, the means for performing 1505 may include, for example but not necessarily, the network communication manager 1215, the antenna 1225, the transceiver 1220, the base station communication manager 1210, the memory 1230 (including the code 1235), the processor 1240, the inter-station communication manager 1245, and/or the bus 1255.

At 1510, the base station can use the configuration signal to indicate one or more properties associated with the positioning reference signal. In some examples, an accuracy level associated with one or more timing measurements is determined based on one or more properties associated with a positioning reference signal. 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed by property components as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1210 can include, for example, a network communications manager 1215, an antenna 1225, a transceiver 1220, a base station communications manager 1210, a memory 1230 (including code 1235), a processor 1240, an inter-station communications manager 1245, and/or a bus 1255 (although not required).

At 1515, the base station can receive a measurement report associated with the positioning reference signal. In some cases, the measurement report relates to an accuracy level associated with the one or more timing measurements. 1515 the operations may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1515 may be performed by a measurement reporting component as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1515 may include, but is not necessarily required to include, for example, a network communications manager 1215, an antenna 1225, a transceiver 1220, a base station communications manager 1210, a memory 1230 (including code 1235), a processor 1240, an inter-station communications manager 1245, and/or a bus 1255.

Fig. 16 shows a flow diagram illustrating a method 1600 of supporting group delay timing accuracy for positioning in NR according to aspects of the present disclosure. The operations of method 1600 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 1600 may be performed by a base station communications manager as described with reference to fig. 9-12. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

At 1605, the base station may transmit a configuration signal to the UE indicating a configuration for positioning reference signals. 1605 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 1605 may be performed by the configuration signal component as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1605 may include, but is not necessarily limited to, a network communications manager 1215, an antenna 1225, a transceiver 1220, a base station communications manager 1210, memory 1230 (including code 1235), a processor 1240, an inter-station communications manager 1245, and/or a bus 1255, for example.

At 1610, the base station may use the configuration signal to indicate one or more properties associated with the positioning reference signal. In some cases, an accuracy level associated with one or more timing measurements is determined based on one or more properties associated with a positioning reference signal. 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed by the property components as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1610 may include, but is not necessarily required to include, for example, a network communication manager 1215, an antenna 1225, a transceiver 1220, a base station communication manager 1210, a memory 1230 (including code 1235), a processor 1240, an inter-station communication manager 1245, and/or a bus 1255.

At 1615, the base station may schedule one or more measurement gaps and one or more guard periods associated with the scheduled transmission of the positioning reference signal. In some cases, the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof. In some cases, the level of accuracy is based on scheduling the one or more measurement gaps and the one or more guard periods. 1615 may be performed according to the methods described herein. In some examples, aspects of the operation of 1615 may be performed by a scheduling component as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1615 may include, but is not necessarily required to include, for example, a network communications manager 1215, an antenna 1225, a transceiver 1220, a base station communications manager 1210, a memory 1230 (including code 1235), a processor 1240, an inter-station communications manager 1245, and/or a bus 1255.

At 1620, the base station may configure the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal. In some cases, bypassing the at least a portion of the transmit chain or the receive chain is based on scheduling the one or more measurement gaps and the one or more guard periods. 1620 may be performed according to methods described herein. In some examples, aspects of the operations of 1620 may be performed by bypass components as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1620 may include, but is not necessarily limited to, a network communications manager 1215, an antenna 1225, a transceiver 1220, a base station communications manager 1210, memory 1230 (including code 1235), a processor 1240, an inter-station communications manager 1245, and/or a bus 1255, for example.

At 1625, the base station may receive a measurement report associated with the positioning reference signal. In some cases, the measurement report relates to an accuracy level associated with the one or more timing measurements. 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be performed by a measurement reporting component as described with reference to fig. 9-12. Additionally or alternatively, means for performing 1625 may include, for example, but is not required to include, the network communication manager 1215, the antenna 1225, the transceiver 1220, the base station communication manager 1210, the memory 1230 (including the code 1235), the processor 1240, the inter-station communication manager 1245, and/or the bus 1255.

It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more methods may be combined.

Aspects of the following examples may be combined with any of the previous embodiments or aspects described herein.

Example 1: a method for wireless communications by a User Equipment (UE), comprising: receiving a configuration signal indicating a configuration for positioning reference signals; determining one or more properties associated with the positioning reference signal based at least in part on the configuration signal; determining a level of accuracy associated with one or more timing measurements based, at least in part, on one or more timings associated with the positioning reference signal and one or more properties associated with the positioning reference signal; and transmitting a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Example 2: the method of example 1, further comprising: determine an accuracy level associated with a transmission timing of a second positioning reference signal, an accuracy level associated with a reception timing of the positioning reference signal, and an accuracy level associated with a time difference between reception of the positioning reference signal and transmission of the second positioning reference signal, or any combination thereof, based at least in part on the one or more properties associated with the positioning reference signal.

Example 3: the method of any of examples 1 or 2, further comprising: identifying one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof; and wherein determining the level of accuracy further comprises determining the level of accuracy based at least in part on identifying the one or more measurement gaps, the one or more guard periods, or a combination thereof.

Example 4: the method of any of examples 1 to 3, further comprising: bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein identifying one or more timings associated with the second positioning reference signal comprises identifying one or more timing measurements associated with the second positioning reference signal, and bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on identifying the one or more measurement gaps and the one or more guard periods.

Example 5: the method of any of examples 1 to 4, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

Example 6: the method of any of examples 1 to 5, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

Example 7: the method of any of examples 1 to 6, further comprising: identifying, based at least in part on the configuration signal, whether the positioning reference signal is intended for performing positioning measurements, intended for performing communications, or any combination thereof, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

Example 8: the method of any of examples 1 to 7, further comprising: identifying that the positioning reference signal is intended for performing the positioning measurement; and bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

Example 9: the method of any of examples 1 to 8, further comprising: further comprising: identifying that the positioning reference signal is intended for performing positioning measurements and communications; and determining a second level of accuracy associated with the one or more timing measurements based at least in part on the identifying, wherein the level of accuracy associated with the one or more timing measurements is greater than the second level of accuracy associated with the one or more timing measurements.

Example 10: the method of any of examples 1 to 9, wherein the positioning reference signal comprises a sounding reference signal.

Example 11: the method of any of examples 1 to 10, further comprising: identifying, based at least in part on the configuration signal, whether the positioning reference signal is transmitted simultaneously with a channel, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier than the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on the identification.

Example 12: the method of any of examples 1 to 11, further comprising: identifying whether a transmission power associated with the positioning reference signal satisfies a threshold based at least in part on the configuration signal, wherein the level of accuracy associated with the one or more timing measurements is based at least in part on the identification.

Example 13: the method of any of examples 1 to 12, further comprising: identifying that the transmission power associated with the positioning reference signal satisfies the threshold; and bypassing at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

Example 14: the method of any of examples 1 to 12, further comprising: identifying that the transmission power associated with the positioning reference signal does not satisfy the threshold; and determining a second level of accuracy associated with the one or more timing measurements based at least in part on the identifying, wherein the level of accuracy associated with the one or more timing measurements is greater than the second level of accuracy associated with the one or more timing measurements.

Example 15: the method of any of examples 1 to 14, further comprising: reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

Example 16: the method of any one of examples 1 to 15, further comprising: identifying a duration of the positioning reference signal during a time period based at least in part on the configuration signal; determining whether the duration of the positioning reference signal satisfies a threshold; and bypassing at least a portion of a transmit chain associated with a scheduled transmission of the positioning reference signal based at least in part on determining that the duration of the positioning reference signal satisfies the threshold, wherein the accuracy level associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

Example 17: the method of any of examples 1-16, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

Example 18: the method of any one of examples 1 to 17, further comprising: identifying a bandwidth associated with the positioning reference signal based at least in part on the configuration signal; and determining that the bandwidth associated with the positioning reference signal satisfies a positioning reference signal bandwidth threshold, wherein the level of accuracy associated with the one or more timing measurements is not proportional to the bandwidth associated with the positioning reference signal.

Example 19: the method of any one of examples 1 to 18, further comprising: reporting, to a base station, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the positioning reference signal bandwidth threshold is based at least in part on the UE capability.

Example 20: the method of any one of examples 1 to 19, further comprising: identifying a location of a subband associated with scheduled transmission of the positioning reference signal based at least in part on the configuration signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on the location of the subband.

Example 21: the method of any of examples 1-20, wherein an accuracy associated with a sub-band located at a center of a frequency band is greater than an accuracy associated with a sub-band located at an edge of the frequency band.

Example 22: the method of any one of examples 1 to 21, further comprising: reporting, to a base station, a UE capability associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capability.

Example 23: the method of any of examples 1 to 22, further comprising: determining a second configuration for a second positioning reference signal; determining one or more properties associated with the second positioning reference signal based at least in part on the second configuration; and determining a second level of accuracy associated with a timing difference between reception of the positioning reference signal and transmission of the second positioning reference signal, wherein timing of reception of the positioning reference signal is based at least in part on identifying the one or more timing measurements associated with the positioning reference signal, and wherein the measurement report relates to the second level of accuracy.

Example 24: the method of any of examples 1-23, wherein the one or more timing measurements comprise a group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal, a transmission timing measurement, a reception timing measurement, or any combination thereof.

Example 25: the method of any of examples 1-24, wherein the level of accuracy associated with the one or more timing measurements is different for a first frequency range and a second frequency range.

Example 26: a method for wireless communication, comprising: transmitting, to a User Equipment (UE), a configuration signal indicating a configuration for a positioning reference signal; using the configuration signal to indicate one or more properties associated with the positioning reference signal, wherein a level of accuracy associated with one or more timing measurements is determined based at least in part on the one or more properties associated with the positioning reference signal; and receiving a measurement report associated with the positioning reference signal, wherein the measurement report relates to the level of accuracy associated with the one or more timing measurements.

Example 27: the method of example 26, further comprising: scheduling one or more measurement gaps, one or more guard periods, or a combination thereof associated with scheduled transmission of the positioning reference signal, wherein the one or more measurement gaps and the one or more guard periods are scheduled before the positioning reference signal, after the positioning reference signal, or any combination thereof, and wherein the accuracy level is based at least in part on scheduling the one or more measurement gaps, the one or more guard periods, or a combination thereof.

Example 28: the method of any one of examples 26 or 27, further comprising: configuring the UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal or a receive chain associated with scheduled reception of a second positioning reference signal, wherein bypassing the at least a portion of the transmit chain or the receive chain is based at least in part on scheduling the one or more measurement gaps and the one or more guard periods.

Example 29: the method of any of examples 26 to 28, wherein the at least a portion of the transmit chain or the receive chain comprises a surface acoustic wave filter.

Example 30: the method of any of examples 26 to 28, wherein the positioning reference signal comprises an uplink positioning reference signal and the second positioning reference signal comprises a downlink positioning reference signal.

Example 31: the method of any of examples 26 to 30, further comprising: the configuration signal is used to indicate whether the positioning reference signal is intended for performing positioning measurements, for performing communications, or any combination thereof.

Example 32: the method of any one of examples 26 to 31, further comprising: indicating that the positioning reference signal is intended for performing the positioning measurement; and configuring a UE to bypass at least a portion of a transmit chain associated with scheduled transmission of the positioning reference signal, wherein the accuracy level associated with the one or more timing measurements is based at least in part on bypassing the at least a portion of the transmit chain.

Example 33: the method of any of examples 26 to 32, wherein the positioning reference signal comprises a sounding reference signal.

Example 34: the method of any of examples 26 to 33, further comprising: using the configuration signal to indicate whether the positioning reference signal is transmitted simultaneously with a channel, wherein the channel is in a same component carrier as the positioning reference signal or in a different component carrier from the positioning reference signal.

Example 35: the method of any of examples 26 to 34, further comprising: the configuration signal is used to indicate whether a transmission power associated with the positioning reference signal meets a threshold.

Example 36: the method of any of examples 26 to 35, further comprising: receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the threshold is based at least in part on the UE capability.

Example 37: the method of any of examples 26 to 36, further comprising: using the configuration signal to indicate a duration of the positioning reference signal during a time period, wherein the duration of the positioning reference signal comprises a number of symbols and the time period comprises one millisecond.

Example 38: the method of any one of examples 26 to 37, further comprising: the configuration signal is used to indicate a bandwidth associated with the positioning reference signal.

Example 39: the method of any of examples 26 to 38, further comprising: receiving, from the UE, a UE capability associated with a frequency band, a combination of frequency bands, or both, wherein the positioning reference signal bandwidth threshold is based at least in part on the UE capability.

Example 40: the method of any of examples 26 to 39, further comprising: the configuration signal is used to indicate a location of a sub-band associated with scheduled transmission of the positioning reference signal, wherein an accuracy associated with the sub-band located at a center of the frequency band is greater than an accuracy associated with the sub-band located at an edge of the frequency band.

Example 41: the method of any of examples 26 to 40, further comprising: receiving, from the UE, a UE capability associated with the positioning reference signal, wherein the location of the subband associated with the scheduled transmission of the positioning reference signal is based at least in part on the UE capability.

Example 42: the method of any one of examples 26 to 41, wherein the one or more timing measurements include a group delay timing measurement associated with reception of the positioning reference signal and transmission of a second positioning reference signal, a transmission timing measurement, a reception timing measurement, or any combination thereof.

Example 43: the method of any of examples 26 to 42, wherein the level of accuracy associated with the one or more timing measurements is different for a first frequency range and a second frequency range.

Example 44: an apparatus, comprising: at least one apparatus for performing the method of any one of examples 1-25.

Example 45: an apparatus for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as in any one of examples 1 to 25.

Example 46: a non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method as in any one of examples 1 to 25.

Example 47: an apparatus, comprising: at least one apparatus for performing the method of any one of examples 26 to 43.

Example 48: an apparatus for wireless communication, comprising: a processor; a memory in electronic communication with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as in any one of examples 26 to 43.

Example 49: a non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method as in any one of examples 26 to 43.

The techniques described herein may be used for various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and others. A CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. The IS-2000 version may be generally referred to as CDMA 20001X, 1X, etc. IS-856(TIA-856) IS commonly referred to as CDMA 20001 xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes wideband CDMA (wcdma) and other variants of CDMA. TDMA systems may implement radio technologies such as global system for mobile communications (GSM).

The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE)802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, LTE-A Pro, NR, and GSM are described in literature from an organization named "third Generation partnership project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the systems and radio technologies mentioned herein and for other systems and radio technologies. Although aspects of the LTE, LTE-A, LTE-A Pro or NR system may be described for exemplary purposes and LTE, LTE-A, LTE-A Pro or NR terminology may be used in much of the description, the techniques described herein may also be applied to applications other than LTE, LTE-A, LTE-A Pro or NR applications.

A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider. A small cell may be associated with a lower power base station (as compared to a macro cell), and the small cell may operate in the same or a different (e.g., licensed, unlicensed, etc.) frequency band than the macro cell. According to various examples, a small cell may include a picocell, a femtocell, and a microcell. A picocell, for example, may cover a small geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider. A femtocell may also cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in the residence, etc.). The eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, pico eNB, femto eNB, or home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communication using one or more component carriers.

The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operations.

Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

The various illustrative blocks and modules described in connection with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as any combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and the following claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard-wired, or any combination thereof. Features that implement functions may also be physically located at various locations, including being distributed such that portions of functions are implemented at different physical locations.

Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, a non-transitory computer-readable medium may include Random Access Memory (RAM), Read Only Memory (ROM), electrically erasable programmable ROM (eeprom), flash memory, Compact Disc (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk (disk) and disc (disc), as used herein, includes CD, laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

As used herein, including in the claims, "or" as used in a list of items (e.g., a list of items accompanied by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such that, for example, a list of at least one of A, B or C means a or B or C or AB or AC or BC or ABC (i.e., a and B and C). Also, as used herein, the phrase "based on" should not be read as referring to a closed condition set. For example, an exemplary step described as "based on condition a" may be based on both condition a and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on," as used herein, should be interpreted in the same manner as the phrase "based, at least in part, on.

In the drawings, similar components or features may have the same reference numerals. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description may apply to any one of the similar components having the same first reference label irrespective of the second reference label, or other subsequent reference label.

The illustrations set forth herein in connection with the figures describe example configurations and are not intended to represent all examples that may be implemented or fall within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration," and does not mean "preferred" or "advantageous over other examples. The detailed description includes specific details to provide an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

The description herein is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

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Group delay timing accuracy for positioning in new radio

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