Method and device for applying wave beam

文档序号：1958253 发布日期：2021-12-10 浏览：22次中文

阅读说明：本技术 一种波束应用的方法及其装置 (Method and device for applying wave beam ) 是由李明菊于 2021-08-05 设计创作，主要内容包括：本申请实施例公开了一种波束应用的方法及其装置,可以应用于长期演进(long term evolution,LTE)系统、第五代(5th generation,5G)移动通信系统、5G新空口(new radio,NR)系统等系统中,该方法包括：接收来自网络设备的下行控制信息DCI,所述DCI包括统一传输配置指示状态；确定所述统一传输配置指示状态对应的上行传输的波束应用时间和/或下行传输的波束应用时间。通过实施本申请实施例,可以根据所述下行控制信息DCI确定对应的上行传输的波束应用时间和/或下行传输的波束应用时间,并进行波束应用。从而保证所述网络设备和所述终端设备的波束一致,提高传输性能。(The embodiment of the application discloses a method and a device for applying wave beams, which can be applied to systems such as a Long Term Evolution (LTE) system, a 5th generation (5G) mobile communication system, a 5G New Radio (NR) system and the like, and the method comprises the following steps: receiving Downlink Control Information (DCI) from network equipment, wherein the DCI comprises a uniform transmission configuration indication state; and determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state. By implementing the embodiment of the present application, the corresponding beam application time for uplink transmission and/or the beam application time for downlink transmission may be determined according to the downlink control information DCI, and the beam application may be performed. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.)

1. A method for beam application, applied to a terminal device, the method comprising:

receiving Downlink Control Information (DCI) from network equipment, wherein the DCI comprises a uniform transmission configuration indication state;

and determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

2. The method of claim 1, wherein the beam application time for the uplink transmission and/or the beam application time for the downlink transmission is after a number of symbols of a hybrid automatic repeat request acknowledgement (HARQ ACK) feedback transmission time for the DCI.

3. The method of claim 2, wherein the plurality of symbols is a first number of symbols determined based on a subcarrier spacing of the downlink transmission, and wherein the beam application time is a beam application time of the downlink transmission; and/or

The plurality of symbols is a second number of symbols determined based on a subcarrier spacing of the uplink transmission, wherein the beam application time is a beam application time of the uplink transmission.

4. The method of claim 2, comprising:

the time length of the plurality of symbols is a first time value; or

The plurality of symbols is a third number of symbols determined based on a subcarrier spacing of the uplink transmission or the downlink transmission, wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission.

5. The method according to claim 3 or 4, wherein the DCI corresponds to a carrier unit of the same carrier as the uplink transmission and/or the downlink transmission;

or the DCI and the uplink transmission and/or the downlink transmission correspond to different carrier wave units, and the subcarrier interval corresponding to the DCI is greater than or equal to the subcarrier interval of the uplink transmission and/or the subcarrier interval of the downlink transmission.

6. The method of claim 2, comprising:

the plurality of symbols include a fourth number of symbols determined based on the subcarrier spacing of the downlink transmission and a fifth number of symbols determined based on the subcarrier spacing of the DCI and the subcarrier spacing of the downlink transmission, wherein the beam application time is the beam application time of the downlink transmission; and/or

The plurality of symbols includes a sixth number of symbols determined based on a subcarrier spacing of the uplink transmission and a seventh number of symbols determined based on a subcarrier spacing of the DCI and a subcarrier spacing of the uplink transmission, wherein the beam application time is a beam application time of the uplink transmission.

7. The method of claim 2, comprising:

the time lengths of the plurality of symbols are second time values; or

The plurality of symbols includes an eighth number of symbols determined based on the subcarrier spacing of the uplink transmission and a ninth number of symbols determined based on the subcarrier spacing of the DCI and the subcarrier spacing of the uplink transmission; or the eighth number of symbols is determined based on the subcarrier spacing of the downlink transmission, and the ninth number of symbols is determined based on the subcarrier spacing of the DCI and the subcarrier spacing of the downlink transmission; wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission.

8. The method according to claim 6 or 7, wherein the DCI corresponds to carrier units of different carriers for the uplink transmission and/or the downlink transmission, and a subcarrier interval corresponding to the DCI is smaller than a subcarrier interval for the uplink transmission and/or a subcarrier interval for the downlink transmission.

9. The method of claim 1, comprising:

the downlink transmission comprises a downlink channel and/or a downlink reference signal;

the downlink channel comprises at least one of: a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH and a physical broadcast channel PBCH;

the downlink reference signal comprises at least one of: a synchronization signal block SSB, a channel state information reference signal CSI-RS, a demodulation reference signal DMRS and a positioning reference signal PRS.

10. The method of claim 1, comprising:

the uplink transmission comprises an uplink channel and/or an uplink reference signal;

the uplink channel includes at least one of: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH);

the uplink reference signal includes at least one of: sounding reference signals, SRS, DMRS.

11. The method of claim 5, wherein the DCI corresponds to different carrier units for the uplink transmission and/or the downlink transmission, and wherein the method comprises:

the different carrier wave units correspond to different service cells; or

The different carrier units correspond to a serving cell and a non-serving cell.

12. A method for beam application, applied to a network device, the method comprising:

sending Downlink Control Information (DCI) to terminal equipment, wherein the DCI comprises a uniform transmission configuration indication state;

and applying the wave beam according to the downlink control information.

13. An apparatus for beam application, comprising:

a receiving module, configured to receive downlink control information DCI from a network device, where the DCI includes a unified transmission configuration indication state;

and the determining module is used for determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

14. The apparatus of claim 13, wherein a beam application time for the uplink transmission and/or a beam application time for the downlink transmission is after a number of symbols of a hybrid automatic repeat request acknowledgement (HARQ ACK) feedback transmission time for the DCI. Beam application time for uplink transmission and/or beam application time for downlink transmission

15. The apparatus of claim 14, wherein the plurality of symbols is a first number of symbols determined based on a subcarrier spacing of the downlink transmission, and wherein the beam application time is a beam application time of the downlink transmission; and/or

16. The apparatus of claim 14, comprising:

the time length of the plurality of symbols is a first time value; or

17. The apparatus according to claim 15 or 16, wherein the DCI corresponds to a carrier unit of a same carrier as the uplink transmission and/or the downlink transmission;

18. The apparatus of claim 14, comprising:

19. The apparatus of claim 14, comprising:

the time lengths of the plurality of symbols are second time values; or

20. The apparatus according to claim 18 or 19, wherein the DCI corresponds to carrier units of different carriers for the uplink transmission and/or the downlink transmission, and a subcarrier spacing corresponding to the DCI is smaller than a subcarrier spacing for the uplink transmission and/or a subcarrier spacing for the downlink transmission.

21. The apparatus of claim 13, comprising:

the downlink transmission comprises a downlink channel and/or a downlink reference signal;

the downlink channel comprises at least one of: a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH and a physical broadcast channel PBCH;

22. The apparatus of claim 13, comprising:

the uplink transmission comprises an uplink channel and/or an uplink reference signal;

the uplink channel includes at least one of: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH);

the uplink reference signal includes at least one of: sounding reference signals, SRS, DMRS.

23. The apparatus of claim 17, wherein the DCI corresponding to the uplink transmission and/or the downlink transmission in different carrier units comprises:

the different carrier wave units correspond to different service cells; or

The different carrier units correspond to a serving cell and a non-serving cell.

24. An apparatus for beam application, the apparatus comprising:

a sending module, configured to send downlink control information DCI to a terminal device, where the DCI includes a uniform transmission configuration indication state;

and the application module is used for applying the wave beam according to the downlink control information.

25. A communications apparatus, comprising a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the method of any of claims 1 to 11.

26. A communication apparatus, comprising a processor and a memory, the memory having a computer program stored therein, the processor executing the computer program stored in the memory to cause the apparatus to perform the method of claim 12.

27. A communications apparatus, comprising: a processor and an interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of any one of claims 1 to 11.

28. A communications apparatus, comprising: a processor and an interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor for executing the code instructions to perform the method of claim 12.

29. A computer-readable storage medium storing instructions that, when executed, cause the method of any of claims 1-11 to be implemented.

30. A computer-readable storage medium storing instructions that, when executed, cause the method of claim 12 to be implemented.

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for beam application.

Background

In wireless communication, a beam is generally indicated for an application by a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), and/or a Reference Signal (RS). The PDCCH and PUCCH may activate or apply one beam using a Medium Access Control (MAC) Control Element (CE). And PDSCH and PUSCH may indicate or apply their respective beams according to DCI signaling. This approach can result in beam misalignment for the network device and the terminal device.

There is currently no effective means for beam applications.

Disclosure of Invention

The embodiments of the present application provide a method and an apparatus for beam application, which may be applied to the fields of a Long Term Evolution (LTE) system, a 5th generation (5G) mobile communication system, a 5G New Radio (NR) system, and the like, and determine a corresponding beam application time for uplink transmission and/or a corresponding beam application time for Downlink transmission according to Downlink Control Information (DCI), and perform beam application. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In a first aspect, an embodiment of the present application provides a method for beam application, where the method is applied to a terminal device, and the method includes:

receiving Downlink Control Information (DCI) from network equipment, wherein the DCI comprises a uniform transmission configuration indication state;

and determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

Optionally, the DCI may or may not include downlink allocation indication information.

Optionally, the beam application time of the uplink transmission and/or the beam application time of the downlink transmission is after a plurality of symbols of the feedback transmission time of the hybrid automatic repeat request HARQ acknowledgement character ACK for the DCI, and the beam application time of the uplink transmission and/or the beam application time of the downlink transmission is/are the application time of the indication state of the unified transmission configuration.

Optionally, the plurality of symbols are a first number of symbols, and the first number of symbols is determined based on the subcarrier spacing of the downlink transmission, where the beam application time is the beam application time of the downlink transmission; and/or

Optionally, the method includes:

the time length of the plurality of symbols is a first time value; or

Optionally, the DCI and the uplink transmission and/or the downlink transmission correspond to a carrier component carrier of the same carrier;

Optionally, the method includes:

the time lengths of the plurality of symbols are second time values; or

Optionally, the DCI and the uplink transmission and/or the downlink transmission correspond to carrier component carriers of different carriers, and a subcarrier interval corresponding to the DCI is smaller than a subcarrier interval of the uplink transmission and/or a subcarrier interval of the downlink transmission.

Optionally, the method includes:

the downlink transmission comprises a downlink channel and/or a downlink reference signal;

the downlink channel comprises at least one of: a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH and a physical broadcast channel PBCH;

Optionally, the method includes:

the uplink transmission comprises an uplink channel and/or an uplink reference signal;

the uplink channel includes at least one of: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH);

the uplink reference signal includes at least one of: sounding reference signals, SRS, DMRS.

Optionally, the DCI and the uplink transmission and/or the downlink transmission correspond to different carrier units, and the method includes:

the different carrier wave units correspond to different service cells; or

The different carrier units correspond to a serving cell and a non-serving cell.

And determining corresponding beam application time of uplink transmission and/or beam application time of downlink transmission according to the downlink control information DCI, and performing beam application. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In a second aspect, an embodiment of the present application provides another method for applying a beam, where the method is applied to a network device, and the method includes:

sending Downlink Control Information (DCI) to terminal equipment, wherein the DCI comprises a uniform transmission configuration indication state;

and applying the wave beam according to the downlink control information.

In a third aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus has a function of implementing part or all of the functions of the terminal device in the method according to the first aspect, for example, the function of the communication apparatus may have the functions in part or all of the embodiments in the present application, or may have the functions of implementing any one of the embodiments in the present application separately. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device may include a transceiver module and a processing module configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds computer programs and data necessary for the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In one implementation, the communication device includes:

a receiving module, configured to receive downlink control information DCI from a network device, where the DCI includes a unified transmission configuration indication state;

In a fourth aspect, the present invention provides another communication apparatus, where the communication apparatus has some or all of the functions of the network device in the method example described in the second aspect, for example, the functions of the communication apparatus may have the functions in some or all of the embodiments in the present application, or may have the functions of implementing any of the embodiments in the present application separately. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device may include a transceiver module and a processing module configured to support the communication device to perform the corresponding functions of the method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds computer programs and data necessary for the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In one implementation, the communication device includes:

a sending module, configured to send downlink control information DCI to a terminal device, where the DCI includes a uniform transmission configuration indication state;

and the application module is used for applying the wave beam according to the downlink control information.

In a fifth aspect, an embodiment of the present application provides a communication device, which includes a processor, and when the processor calls a computer program in a memory, the processor performs the method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a communication device, which includes a processor, and when the processor calls a computer program in a memory, the processor executes the method according to the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory, where the memory stores a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory, where the memory stores a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect.

In a ninth aspect, embodiments of the present application provide a communication device, which includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to cause the device to perform the method according to the first aspect.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to cause the apparatus to perform the method according to the second aspect.

In an eleventh aspect, an embodiment of the present invention provides a beam application system, where the system includes the communication apparatus of the third aspect and the communication apparatus of the fourth aspect, or the system includes the communication apparatus of the fifth aspect and the communication apparatus of the sixth aspect, or the system includes the communication apparatus of the seventh aspect and the communication apparatus of the eighth aspect, or the system includes the communication apparatus of the ninth aspect and the communication apparatus of the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium, configured to store instructions for the terminal device, where the instructions, when executed, cause the terminal device to perform the method according to the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for the network device, where the instructions, when executed, cause the network device to perform the method of the second aspect.

In a fourteenth aspect, the present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface, and is configured to enable a terminal device to implement the functions according to the first aspect, for example, to determine or process at least one of data and information related to the method. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the terminal device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a seventeenth aspect, the present application provides a chip system, which includes at least one processor and an interface, for enabling a network device to implement the functions related to the second aspect, for example, to determine or process at least one of data and information related to the method. In one possible design, the system-on-chip further includes a memory for storing computer programs and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In an eighteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for applying a beam according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a method for applying a beam according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

For ease of understanding, terms referred to in the present application will be first introduced.

1. Downlink Control Information (DCI)

The DCI is carried by a Physical Downlink Control Channel (PDCCH), and may include uplink and downlink resource allocation, hybrid automatic repeat request (HARQ) information, power control, and the like. The PDCCH is a physical channel and is used for carrying the downlink control information.

2. Beam beam indication

The Rel-16 may indicate a beam corresponding to a physical downlink control channel PDCCH, a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), and/or a Reference Signal (RS).

The reference signal RS includes a channel state information reference signal (CSI-RS), a Sounding Reference Signal (SRS), a Positioning Reference Signal (PRS), a phase reference signal (TRS), and the like, and the CSI-RS includes a CSI-RS for channel state information measurement, or a CSI-RS for beam measurement, or a CSI-RS for channel loss estimation; the SRS includes an SRS for channel state information measurement based on codebook or non-codebook, or an SRS for beam measurement or an SRS for positioning measurement.

A beam described herein is also referred to as a Transmission Configuration Indicator (TCI) state (state). Wherein the TCI state contains Quasi-Co-location (QCL) Type D information. The beam application time described herein is also referred to as the application time of the TCI state.

In order to better understand a method for applying a beam disclosed in the embodiments of the present application, a communication system to which the embodiments of the present application are applicable is first described below.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure. The communication system may include, but is not limited to, one network device and one terminal device, the number and form of the devices shown in fig. 1 are only for example and do not constitute a limitation to the embodiments of the present application, and two or more network devices and two or more terminal devices may be included in practical applications. The communication system shown in fig. 1 includes a network device 101 and a terminal device 102 as an example.

It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems. For example: a Long Term Evolution (LTE) system, a 5th generation (5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems. It should be further noted that the side links in the embodiment of the present application may also be referred to as side links or through links.

The network device 101 in the embodiment of the present application is an entity of a network for transmitting or receiving signals. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. The network device provided by the embodiment of the present application may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and a protocol layer of a network device, such as a base station, may be split by using a structure of CU-DU, functions of a part of the protocol layer are placed in the CU for centralized control, and functions of the remaining part or all of the protocol layer are distributed in the DU, and the DU is centrally controlled by the CU.

The terminal device 102 in the embodiment of the present application is an entity, such as a mobile phone, on the user side for receiving or transmitting signals. A terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be a vehicle having a communication function, a smart vehicle, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote surgery (remote medical supply), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

In Rel-16, the beams of PDCCH, PDSCH, PUSCH, PUCCH, and/or reference signals, etc., are independently indicated. The reference signals comprise CSI-RS, SRS, PRS, TRS and the like, and the CSI-RS comprises CSI-RS used for channel state information measurement or CSI-RS used for beam measurement or CSI-RS used for pathloss estimation; the SRS includes an SRS for channel state information measurement based on codebook or non-codebook, or an SRS for beam measurement or an SRS for positioning measurement, and the PDCCH and PUCCH activate one beam using a Medium Access Control (MAC) Control Element (CE). And PDSCH and PUSCH indicate their respective beams according to DCI signaling. Currently, in order to reduce signaling overhead, a possible method is to use a common beam, which may be separately indicated by an independent uplink transmission configuration indication state separate UL TCI state for uplink transmission and an independent downlink transmission configuration indication state separate DL TCI state for downlink transmission at present, or jointly indicated by joint transmission configuration indication states joint TCI state for uplink and downlink. That is, if the base station indicates a common beam for downlink, the common beam may be used for the PDSCH and a part/all of the PDCCH of the terminal device, such as the UE-specific PDCCH; if the base station indicates a common beam for uplink, the common beam can be used for the PUSCH and a part/all PUCCH of the terminal.

For the unified TCI state indicated by DCI, it is currently proposed that after T time after Hybrid Automatic Repeat Request (HARQ) Acknowledgement Character (ACK) feedback transmission for the DCI is provided, the unified TCI state indicated by DCI can be used, that is, after the beam application time is the T time after HARQ ACK feedback transmission. However, a method for determining the beam application time during cross-carrier indication is not available at present, and it is not possible to ensure that the beams of the network device and the terminal device are consistent during cross-carrier indication.

It is to be understood that the communication system described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation to the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows that along with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The method for beam application and the apparatus thereof provided by the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for beam application according to an embodiment of the present application. The method is applied to the terminal equipment. As shown in fig. 2, the method may include, but is not limited to, the following steps:

step S201: receiving Downlink Control Information (DCI) from network equipment, wherein the DCI comprises a uniform transmission configuration indication state;

in this embodiment of the present disclosure, a beam may be indicated according to a unified transmission configuration indication state unified TCI state or a common transmission configuration indication state common TCI state in the downlink control information DCI, where the beam may be a common beam. And the terminal equipment can apply the beam after receiving the unidentified TCI state or the common TCI state in the DCI.

Step S202: and determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

In this embodiment of the present disclosure, the beam application time is a time point when the beam starts to be applied, and in order to ensure communication quality, the beam application times of the network device and the terminal device need to be consistent. And determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state after receiving the unified transmission configuration indication state in the DCI. Or

The beam application time is a time point when the beam starts to be applied, and in order to ensure communication quality, the beam application times of the network device and the terminal device need to be consistent. And determining the downlink transmission beam application time corresponding to the uniform transmission configuration indication state after receiving the uniform transmission configuration indication state in the DCI.

According to the embodiment of the application, the beam application time of the corresponding uplink transmission and/or the beam application time of the downlink transmission are determined according to the downlink control information DCI, and the beam application is carried out. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

Optionally, the DCI may or may not include downlink allocation indication information.

The DCI may include the downlink assignment indication information DL assignment, configured to indicate a time-frequency resource of the PDSCH; or does not include the downlink allocation indication information DL assignment.

Optionally, the beam application time for uplink transmission and/or the beam application time for downlink transmission is after a plurality of symbols of the HARQ acknowledgement character ACK feedback transmission time for the DCI. And the beam application time of the uplink transmission and/or the beam application time of the downlink transmission is the application time of the unified transmission configuration indication state.

In the embodiment of the present disclosure, a hybrid Automatic Repeat Request HARQ is a technology formed by combining Forward Error Correction (FEC) coding and Automatic Repeat Request (ARQ). The basic principle is that at the receiving end, FEC technology is used to correct the correctable part of all errors; carrying out error detection to judge data packets which can not be corrected; and discarding the data packet which can not be corrected, and requesting the sending end to resend the same data packet. And the HARQ is the feedback information sent by the receiving end to the sending end by the ACK. The terminal device is a receiving end, and the time after the terminal device sends the plurality of symbols of the HARQ ACK time to the network device is the beam application time.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the HARQ ACK feedback transmission time aiming at the downlink control information DCI. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In the embodiment of the present disclosure, the beam application time is after a first number of symbols of a hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The first number of symbols is determined based on a sub-carrier space (SCS), the symbols are time symbols, wherein the beam application time is a beam application time of the downlink transmission.

And/or

The beam application time is after a second number of symbols of a hybrid automatic repeat request, HARQ, acknowledgement character, ACK, feedback transmission time. The second number of symbols is determined based on a sub-carrier space (SCS) of an uplink transmission, the symbols being time symbols, wherein the beam application time is a beam application time of the uplink transmission.

Optionally, the first number of symbols is determined based on a subcarrier interval of downlink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of downlink transmission. For example, if the subcarrier interval of downlink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of downlink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the second number of symbols is determined based on a subcarrier interval of uplink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of uplink transmission. For example, if the subcarrier interval of uplink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of the uplink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the value of the first number and/or the value of the second number are configured by the network device. The value of the first quantity and the value of the second quantity may be the same or different.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the first number of symbols and/or the second number of symbols and the HARQ ACK feedback transmission time determined by the subcarrier spacing. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

Optionally, the method includes:

the time length of the plurality of symbols is a first time value; or

In this embodiment of the disclosure, the time lengths of the symbols may be the first time value, and the first time value is an absolute value of time, not the number of symbols. Namely, the beam application time is after the first time value of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The specific value of the first time value can be adjusted by an implementer according to the actual implementation, and the disclosure does not limit the specific value of the first time value. In one possible embodiment, the first time value is configured by a network device. Wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission. That is, regardless of the subcarrier spacing for uplink transmission and downlink transmission, the uplink transmission and downlink transmission use the DCI indicated TCI state after the first time value. Or

The beam application time is after a third number of symbols of a hybrid automatic repeat request, HARQ, acknowledgement character, ACK, feedback transmission time. The third number of symbols is determined based on a subcarrier spacing, SCS, of the uplink transmission or the downlink transmission, the symbols being time symbols, wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission. I.e. the subcarrier spacing of one of the uplink and downlink transmissions is used to determine the length of time occupied by the third number of symbols. In this case, if the subcarrier spacing for uplink transmission and downlink transmission are different, the uplink transmission and downlink transmission also use the DCI indicated TCI state after the same time.

Optionally, the third number of values is configured by the network device. Wherein the third number of symbols is determined based on the subcarrier spacing SCS of the uplink transmission or the downlink transmission, meaning that the time length occupied by each symbol in the third number of symbols is determined by the subcarrier spacing SCS of the uplink transmission or the downlink transmission.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the third number of symbols and the HARQ ACK feedback transmission time determined according to the uplink transmission or the downlink transmission subcarrier interval, or the corresponding beam application time of uplink transmission and/or the corresponding beam application time of downlink transmission is determined according to the first time value and the HARQ ACK feedback transmission time. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

Optionally, the DCI and the uplink transmission and/or the downlink transmission correspond to a carrier component carrier of the same carrier; namely, the DCI is used to indicate the TCI state of uplink transmission and/or downlink transmission on the same carrier.

Or the DCI and the uplink transmission and/or the downlink transmission correspond to different carrier wave units, and the subcarrier interval corresponding to the DCI is greater than or equal to the subcarrier interval of the uplink transmission and/or the subcarrier interval of the downlink transmission. Namely, the DCI is used to indicate the TCI state of uplink transmission and/or downlink transmission on different carriers.

Optionally, the method includes:

In the embodiment of the present disclosure, the DCI and the downlink transmission correspond to carrier component carriers of different carriers, and the subcarrier interval corresponding to the DCI is smaller than the subcarrier interval of the downlink transmission, so that the terminal device cannot process data in time, and needs an extra time delay, that is, an extra symbol. An additional number of symbols is determined after the fourth number of symbols is determined based on the downlink transmitted subcarrier spacing. The additional number of symbols is proportional to a subcarrier spacing of the downlink transmission and inversely proportional to a subcarrier spacing of the DCI. The additional number of symbols is the fifth number of symbols. The plurality of symbols comprise a fourth number of symbols and a fifth number of symbols, and the beam application time is after the sum of the fourth number of symbols and the fifth number of symbols of a hybrid automatic repeat request, HARQ, acknowledgement character, ACK, feedback transmission time. The symbol is a time symbol, wherein the beam application time is a beam application time of the downlink transmission. And/or

DCI with the carrier unit carrier of different carriers is corresponded to uplink transmission, just the sub-carrier interval that DCI corresponds is less than uplink transmission's sub-carrier interval, and terminal equipment can't in time handle data like this, needs extra time delay, also is extra symbol. So after determining the sixth number of symbols based on the subcarrier spacing of the uplink transmission, an additional number of symbols is determined. The additional number of symbols is proportional to a subcarrier spacing of the uplink transmission and inversely proportional to a subcarrier spacing of the DCI. The additional number of symbols is the seventh number of symbols. The beam application time is after the sum of the sixth number of symbols and the seventh number of symbols of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The symbol is a time symbol, wherein the beam application time is a beam application time of the uplink transmission.

Optionally, the fourth number of symbols is determined based on a subcarrier interval of downlink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of downlink transmission. For example, if the subcarrier interval of downlink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of downlink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the determination that the fifth number of symbols is based on the subcarrier spacing of the DCI and the subcarrier spacing of the downlink transmission means that the fifth number has a value ofWherein d is₁The number of the numerical values is the number of symbols,a subcarrier spacing for the downlink transmission, theIs a stand forThe subcarrier spacing of the DCI. After the fifth number of values is determined, the time length occupied by each symbol in the fifth number of symbols is the same as the time length occupied by each symbol in the fourth number of symbols, and the time length is determined based on the downlink transmission subcarrier interval.

Optionally, the sixth number of symbols is determined based on a subcarrier interval of uplink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of uplink transmission. For example, if the subcarrier interval of uplink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of the uplink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the determining of the seventh number of symbols based on the subcarrier spacing of the DCI and the subcarrier spacing of the uplink transmission means that the seventh number has a value ofWherein d is₂The number of the numerical values is the number of symbols,a subcarrier spacing for the uplink transmission, theIs a subcarrier spacing of the DCI. After the seventh number of values is determined, the time length occupied by each symbol in the seventh number of symbols is the same as the time length occupied by each symbol in the sixth number of symbols, and the determination is based on the subcarrier interval of the uplink transmission.

Optionally, the fourth number of values and/or the sixth number of values are configured by the network device. The value of the fourth quantity and the value of the sixth quantity may be the same or different.

Alternatively, d₁And/or d₂Is configured by the network equipment or the terminal is based onSubcarrier spacing for uplink and/or downlink transmission and subcarrier spacing and d₁And/or d₂Is determined.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission are determined according to the subcarrier intervals of uplink transmission and/or downlink transmission and the subcarrier intervals of DCI, wherein the fourth number and/or the fifth number and/or the sixth number and/or the seventh number of symbols and the HARQ ACK feedback transmission time. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

Optionally, the method includes:

the time lengths of the plurality of symbols are second time values; or

In this embodiment, the DCI and the uplink transmission and/or the downlink transmission correspond to carrier component carriers of different carriers, and the subcarrier interval corresponding to the DCI is smaller than the subcarrier interval of the uplink transmission and/or the downlink transmission, the time lengths of the symbols may be the second time value, and the second time value is a time absolute value, not the number of symbols. Namely, the beam application time is after the second time value of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The specific value of the second time value can be adjusted by an implementer according to the actual implementation, and the disclosure does not limit the specific value of the second time value. In one possible embodiment, the second time value is configured by a network device. And the unified transmission configuration indication state unified TCI state is used for uplink transmission and downlink transmission. That is, regardless of the subcarrier spacing for uplink transmission and downlink transmission, the uplink transmission and downlink transmission use the DCI indicated TCI state after the second time value. Or

DCI with the carrier unit carrier of different carriers is corresponded to in downlink transmission, just the sub-carrier interval that DCI corresponds is less than downlink transmission's sub-carrier interval, and terminal equipment can't in time handle data like this, needs extra time delay, also is extra symbol. An additional number of symbols is determined after the eighth number of symbols is determined based on the subcarrier spacing of the downlink transmission. The additional number of symbols is proportional to a subcarrier spacing of the downlink transmission and inversely proportional to a subcarrier spacing of the DCI. The additional number of symbols is the ninth number of symbols. The beam application time is after the sum of the eighth number of symbols and the ninth number of symbols of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The symbol is a time symbol, and the unified transmission configuration indication state unified TCI state is used for uplink transmission and downlink transmission. I.e. the time length occupied by the eighth number of symbols and the value of the ninth number are determined by using the subcarrier interval of downlink transmission. In this case, if the subcarrier spacing for uplink transmission and downlink transmission are different, the uplink transmission and downlink transmission also use the DCI indicated TCI state after the same time. Or

DCI with the carrier unit carrier of different carriers is corresponded to uplink transmission, just the sub-carrier interval that DCI corresponds is less than uplink transmission's sub-carrier interval, and terminal equipment can't in time handle data like this, needs extra time delay, also is extra symbol. So after determining the eighth number of symbols based on the subcarrier spacing of the uplink transmission, an additional number of symbols is determined. The additional number of symbols is proportional to a subcarrier spacing of the uplink transmission and inversely proportional to a subcarrier spacing of the DCI. The additional number of symbols is the ninth number of symbols. The beam application time is after the sum of the eighth number of symbols and the ninth number of symbols of hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The symbol is a time symbol, and the unified transmission configuration indication state unified TCI state is used for uplink transmission and downlink transmission. That is, the time length occupied by the eighth number of symbols and the value of the ninth number are determined by using the subcarrier interval of uplink transmission. In this case, if the subcarrier spacing for uplink transmission and downlink transmission are different, the uplink transmission and downlink transmission also use the DCI indicated TCI state after the same time.

Optionally, the eighth number of symbols is determined based on a subcarrier interval of uplink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of uplink transmission. For example, if the subcarrier interval of uplink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of the uplink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the determination of the ninth number of symbols based on the subcarrier spacing of the DCI and the subcarrier spacing of the uplink transmission means that the ninth number has a value ofWherein d is₃The number of the numerical values is the number of symbols,a subcarrier spacing for the uplink transmission, theIs a subcarrier spacing of the DCI. After the ninth number of values is determined, the time length occupied by each symbol in the ninth number of symbols is the same as the time length occupied by each symbol in the eighth number of symbols, and the time length is determined based on the subcarrier interval of the uplink transmission.

Optionally, the eighth number of symbols is determined based on a subcarrier interval of downlink transmission, which means that a time length occupied by each symbol is determined based on the subcarrier interval of downlink transmission. For example, if the subcarrier interval of downlink transmission is 15KHz, the time length of each slot is 1ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/14ms, where N takes the value of 12 or 14; for another example, if the subcarrier interval of downlink transmission is 30KHz, the time length of each slot is 0.5ms, and if one slot includes N symbols, the time length occupied by each symbol is 1/28ms, where N is 12 or 14.

Optionally, the determination of the ninth number of symbols based on the subcarrier spacing of the DCI and the subcarrier spacing of the downlink transmission means that the ninth number has a value ofWherein d is₄The number of the numerical values is the number of symbols,a subcarrier spacing for the downlink transmission, theIs a subcarrier spacing of the DCI. After the ninth number of values is determined, the time length occupied by each symbol in the ninth number of symbols is the same as the time length occupied by each symbol in the eighth number of symbols, and the time length is determined based on the subcarrier interval of downlink transmission.

Optionally, the eighth number of values is configured by the network device.

Alternatively, d₃And/or d₄The value of (d) is configured by the network equipment, or the terminal according to the subcarrier spacing of the uplink transmission and/or the downlink transmission and the subcarrier spacing and d₃And/or d₄Is determined.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the uplink transmission and/or the downlink transmission subcarrier interval and/or the DCI subcarrier interval and the HARQACK feedback transmission time, or the corresponding beam application time of uplink transmission and/or the corresponding beam application time of downlink transmission is determined according to the second time value and the HARQACK feedback transmission time. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In the embodiment of the present disclosure, the DCI and the uplink transmission and/or the downlink transmission correspond to carrier unit carriers of different carriers, and the subcarrier interval corresponding to the DCI is smaller than the subcarrier interval of the uplink transmission and/or the downlink transmission, so that the terminal device cannot process data in time and needs an extra delay, that is, an extra symbol.

Optionally, the method includes:

the downlink transmission comprises a downlink channel and/or a downlink reference signal;

the downlink channel comprises at least one of: a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, and a Physical Broadcast Channel (PBCH);

the downlink reference signal comprises at least one of: a Synchronization Signal Block (SSB), a channel state information reference Signal CSI-RS, a demodulation reference Signal (DMRS), and a positioning reference Signal PRS.

Optionally, the method includes:

the uplink transmission comprises an uplink channel and/or an uplink reference signal;

the uplink channel includes at least one of: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH);

the uplink reference signal includes at least one of: sounding reference signals, SRS, DMRS.

Optionally, the DCI and the uplink transmission and/or the downlink transmission correspond to different carrier units, and the method includes:

the different carrier wave units correspond to different service cells; or

The different carrier units correspond to a serving cell and a non-serving cell.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for beam application according to an embodiment of the present application. The method is applied to the network equipment. As shown in fig. 3, the method may include, but is not limited to, the following steps:

step S301, sending downlink control information DCI to terminal equipment, wherein the DCI comprises a uniform transmission configuration indication state;

in this disclosure, the network device sends the DCI to the terminal device, where the DCI includes a unified transmission configuration indication state. Indicating a beam according to a unified transmission configuration indication state unified TCI state or a common transmission configuration indication state common TCI state in the downlink control information DCI, where the beam may be a common beam. And the terminal equipment can apply the beam after receiving the unidentified TCI state or the common TCI state in the DCI.

Step S302, the wave beam is applied according to the downlink control information.

In this embodiment of the present disclosure, a beam application time corresponding to a beam is obtained according to the DCI, where the beam application time is a time point when the beam starts to be applied, and in order to ensure communication quality, the beam application times of the network device and the terminal device need to be consistent. And determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state after receiving the unified transmission configuration indication state in the DCI.

In the embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of a network device and a terminal device, respectively. In order to implement the functions in the method provided by the embodiment of the present application, the network device and the terminal device may include a hardware structure and a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure and a software module. Some of the above functions may be implemented by a hardware structure, a software module, or a hardware structure plus a software module.

Fig. 4 is a schematic structural diagram of a communication device 40 according to an embodiment of the present disclosure. The communication device 40 shown in fig. 4 may include a transceiver module 401 and a processing module 402. The transceiver module 401 may include a transmitting module and/or a receiving module, where the transmitting module is used to implement a transmitting function, the receiving module is used to implement a receiving function, and the transceiver module 401 may implement a transmitting function and/or a receiving function.

The communication device 40 may be a terminal device (such as the terminal device in the foregoing method embodiment), or may be a device in the terminal device, or may be a device that can be used in cooperation with the terminal device. Alternatively, the communication device 40 may be a network device, may be a device in a network device, or may be a device that can be used in cooperation with a network device.

When the communication apparatus 40 is a terminal device (such as the terminal device in the foregoing method embodiment), the communication apparatus includes:

a receiving module, configured to receive downlink control information DCI from a network device, where the DCI includes a unified transmission configuration indication state;

And the determining module is used for determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

In one implementation, the DCI may or may not include downlink allocation indication information.

In one implementation, the beam application time of the uplink transmission and/or the beam application time of the downlink transmission is after a plurality of symbols of a hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time for the DCI, and the beam application time of the uplink transmission and/or the beam application time of the downlink transmission is an application time of the unified transmission configuration indication state.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the HARQ ACK feedback transmission time aiming at the downlink control information DCI. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In one implementation, the plurality of symbols is a first number of symbols, which is determined based on a subcarrier interval of the downlink transmission, wherein the beam application time is a beam application time of the downlink transmission; and/or

And/or

The beam application time is after a second number of symbols of a hybrid automatic repeat request, HARQ, acknowledgement character, ACK, feedback transmission time. The second number of symbols is determined based on an uplink sub-carrier space (SCS), the symbols being time symbols, wherein the beam application time is a beam application time of the uplink transmission.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the first number of symbols and/or the second number of symbols and the HARQ ACK feedback transmission time determined by the subcarrier spacing. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In one implementation, the method includes:

the time length of the plurality of symbols is a first time value; or

In this embodiment of the disclosure, the time lengths of the symbols may be the first time value, and the first time value is an absolute value of time, not the number of symbols. Namely, the beam application time is after the first time value of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The specific value of the first time value can be adjusted by an implementer according to the actual implementation, and the disclosure does not limit the specific value of the first time value. In a possible embodiment, the first time value is configured by the network side. Wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission. That is, regardless of the subcarrier spacing for uplink transmission and downlink transmission, the uplink transmission and downlink transmission use the DCI indicated TCI state after the first time value. Or

The beam application time is after a third number of symbols of a hybrid automatic repeat request, HARQ, acknowledgement character, ACK, feedback transmission time. The third number of symbols is determined based on a subcarrier spacing, SCS, of the uplink transmission or the downlink transmission, the symbols being time symbols, wherein the beam application time is a beam application time of the uplink transmission and the downlink transmission. I.e. the subcarrier spacing of one of the uplink and downlink transmissions is used to determine the length of time each symbol of the third number of symbols occupies. In this case, if the subcarrier spacing for uplink transmission and downlink transmission are different, the uplink transmission and downlink transmission also use the DCI indicated TCI state after the same time.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the third number of symbols and the HARQ ACK feedback transmission time determined according to the uplink transmission or the downlink transmission subcarrier interval, or the corresponding beam application time of uplink transmission and/or the corresponding beam application time of downlink transmission is determined according to the first time value and the HARQ ACK feedback transmission time. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In one implementation, the DCI corresponds to a carrier component carrier of the same carrier as the uplink transmission and/or the downlink transmission;

In one implementation, the method includes:

Optionally, the determination that the fifth number of symbols is based on the subcarrier spacing of the DCI and the subcarrier spacing of the downlink transmission means that the fifth number has a value ofWherein d is₁The number of the numerical values is the number of symbols,a subcarrier spacing for the downlink transmission, theIs a subcarrier spacing of the DCI. After the fifth number of values is determined, the time length occupied by each symbol in the fifth number of symbols is the same as the time length occupied by each symbol in the fourth number of symbols, and the time length is determined based on the downlink transmission subcarrier interval.

Optionally, the determining of the seventh number of symbols based on the subcarrier spacing of the DCI and the subcarrier spacing of the uplink transmission means that the seventh number has a value ofWherein d is₂The number of the numerical values is the number of symbols,a subcarrier spacing for the uplink transmission, theIs a subcarrier spacing of the DCI. After the value of the seventh quantity is determined, the seventh quantityThe length of time occupied by each of the symbols is the same as the length of time occupied by each of the sixth number of symbols, and is determined based on the subcarrier spacing of the uplink transmission.

Alternatively, d₁And/or d₂The value of (d) is configured by the network equipment, or the terminal according to the subcarrier spacing of the uplink transmission and/or the downlink transmission and the subcarrier spacing and d₁And/or d₂Is determined.

In one implementation, the method includes:

the time lengths of the plurality of symbols are second time values; or

In the embodiment of the present disclosure, the DCI and the downlink transmission correspond to carrier component carriers of different carriers, and the subcarrier interval corresponding to the DCI is smaller than the subcarrier interval of the downlink transmission, the time lengths of the symbols may be the second time value, and the second time value is an absolute time value, not the number of symbols. Namely, the beam application time is after the second time value of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The specific value of the second time value can be adjusted by an implementer according to the actual implementation, and the disclosure does not limit the specific value of the second time value. In a possible embodiment, the second time value is configured on the network side. That is, regardless of the subcarrier spacing for uplink transmission and downlink transmission, the uplink transmission and downlink transmission use the DCI indicated TCI state after the second time value. And the unified transmission configuration indication state unified TCI state is used for uplink transmission and downlink transmission. Or

DCI with the carrier unit carrier of different carriers is corresponded to uplink transmission, just the sub-carrier interval that DCI corresponds is less than uplink transmission's sub-carrier interval, and terminal equipment can't in time handle data like this, needs extra time delay, also is extra symbol. So after determining the eighth number of symbols based on the subcarrier spacing of the uplink transmission, an additional number of symbols is determined. The additional number of symbols is proportional to a subcarrier spacing of the uplink transmission and inversely proportional to a subcarrier spacing of the DCI. The additional number of symbols is the ninth number of symbols. The beam application time is after the sum of the eighth number of symbols and the ninth number of symbols of the hybrid automatic repeat request HARQ acknowledgement character ACK feedback transmission time. The symbol is a time symbol, and the unified transmission configuration indication state unified TCI state is used for uplink transmission and downlink transmission. That is, the time length occupied by the eighth number of symbols and the value of the ninth number are determined by using the subcarrier interval of uplink transmission. In this case, if the subcarrier spacing for uplink transmission and downlink transmission are different, the uplink transmission and downlink transmission also use the DCI indicated TCI state after the same time.

Optionally, the determination of the ninth number of symbols based on the subcarrier spacing of the DCI and the subcarrier spacing of the uplink transmission means that the ninth number has a value ofWherein d is₃The number of the numerical values is the number of symbols,for the uplink transmissionA transmitted subcarrier spacing of saidIs a subcarrier spacing of the DCI. After the ninth number of values is determined, the time length occupied by each symbol in the ninth number of symbols is the same as the time length occupied by each symbol in the eighth number of symbols, and the time length is determined based on the subcarrier interval of the uplink transmission.

Optionally, the eighth number of values is configured by the network device.

Alternatively,d₃and/or d₄The value of (d) is configured by the network equipment, or the terminal according to the subcarrier spacing of the uplink transmission and/or the downlink transmission and the subcarrier spacing and d₃And/or d₄Is determined.

By the embodiment of the application, the corresponding beam application time of uplink transmission and/or the beam application time of downlink transmission is determined according to the uplink transmission and/or the downlink transmission subcarrier interval and/or the DCI subcarrier interval and the HARQACK feedback transmission time, or the corresponding beam application time of uplink transmission and/or the corresponding beam application time of downlink transmission is determined according to the second time value and the HARQACK feedback transmission time. Therefore, the beam consistency of the network equipment and the terminal equipment is ensured, and the transmission performance is improved.

In one implementation, the DCI and the uplink transmission and/or the downlink transmission correspond to carrier component carriers of different carriers, and a subcarrier interval corresponding to the DCI is smaller than a subcarrier interval of the uplink transmission and/or a subcarrier interval of the downlink transmission.

In the embodiment of the present disclosure, the DCI and the uplink transmission correspond to carrier component carriers of different carriers, and the subcarrier interval corresponding to the DCI is smaller than the subcarrier interval of the uplink transmission, so that the terminal device cannot process data in time, and needs an extra time delay, that is, an extra symbol.

In one implementation, the method includes:

the downlink transmission comprises a downlink channel and/or a downlink reference signal;

the downlink channel comprises at least one of: a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH and a physical broadcast channel PBCH;

In one implementation, the method includes:

the uplink transmission comprises an uplink channel and/or an uplink reference signal;

the uplink channel includes at least one of: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH) and a Physical Random Access Channel (PRACH);

the uplink reference signal includes at least one of: sounding reference signals, SRS, DMRS.

In one implementation, the DCI corresponding to the uplink transmission and/or the downlink transmission in different carrier units includes:

the different carrier wave units correspond to different service cells; or

The different carrier units correspond to a serving cell and a non-serving cell.

When the communication device 40 is a network device, it includes: a sending module, configured to send downlink control information DCI to a terminal device, where the DCI includes a uniform transmission configuration indication state;

And the application module is used for applying the wave beam according to the downlink control information.

Referring to fig. 5, fig. 5 is a schematic structural diagram of another communication device 50 according to an embodiment of the present disclosure. The communication device 50 may be a network device, a terminal device (such as the terminal device in the foregoing method embodiment), a chip, a system-on-chip, or a processor that supports the network device to implement the foregoing method, or a chip, a system-on-chip, or a processor that supports the terminal device to implement the foregoing method. The apparatus may be configured to implement the method described in the method embodiment, and refer to the description in the method embodiment.

The communication device 50 may include one or more processors 501. The processor 501 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor or a central processor. The baseband processor may be configured to process communication protocols and communication data, and the central processor may be configured to control a communication device (e.g., a base station, a baseband chip, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

Optionally, the communication device 50 may further include one or more memories 502, on which a computer program 503 may be stored, and the processor 501 executes the computer program 503, so that the communication device 50 executes the method described in the above method embodiments. Optionally, the memory 502 may further store data therein. The communication device 50 and the memory 502 may be provided separately or may be integrated together.

Optionally, the communication device 50 may further include a transceiver 504 and an antenna 505. The transceiver 504 may be referred to as a transceiving unit, a transceiver, a transceiving circuit, or the like, for implementing transceiving functions. The transceiver 504 may include a receiver and a transmitter, and the receiver may be referred to as a receiver or a receiving circuit, etc. for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmission circuit, etc. for implementing the transmission function.

Optionally, one or more interface circuits 506 may also be included in the communication device 50. The interface circuit 506 is used for receiving code instructions and transmitting the code instructions to the processor 501. The processor 501 executes the code instructions to cause the communication device 50 to perform the method described in the above method embodiment.

The communication device 50 is a terminal device (such as the terminal device in the foregoing method embodiment): the processor 501 is configured to execute step S202 in fig. 2; step S302 in fig. 3a is performed; step S402 in fig. 4; step S502 in fig. 5; or step S604 in fig. 6. The transceiver 504 is configured to perform step S601 in fig. 6.

The communication device 50 is a network device: the transceiver 504 is configured to perform step S201 in fig. 2; step S301 in fig. 3a is performed; step S401 in fig. 4; step S501 in fig. 5; or step S603 in fig. 6. The processor 501 is configured to execute step S602 in fig. 6.

In one implementation, the processor 501 may include a transceiver therein for performing receive and transmit functions. The transceiver may be, for example, a transceiver circuit, or an interface circuit. The transmit and receive circuitry, interfaces or interface circuitry used to implement the receive and transmit functions may be separate or integrated. The transceiver circuit, the interface circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit, the interface circuit or the interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 501 may store a computer program 503, and the computer program 503 may be executed on the processor 501, so that the communication device 50 may execute the method described in the above method embodiment. The computer program 503 may be solidified in the processor 501, in which case the processor 501 may be implemented by hardware.

In one implementation, the communication device 50 may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described herein may be implemented on Integrated Circuits (ICs), analog ICs, Radio Frequency Integrated Circuits (RFICs), mixed signal ICs, Application Specific Integrated Circuits (ASICs), Printed Circuit Boards (PCBs), electronic devices, and the like. The processor and transceiver may also be fabricated using various IC process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), Bipolar Junction Transistor (BJT), bipolar CMOS (bicmos), silicon germanium (SiGe), gallium arsenide (GaAs), and the like.

The communication apparatus in the above description of the embodiment may be a network device or a terminal device (such as the terminal device in the foregoing embodiment of the method), but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 5. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication means may be:

(1) a stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem;

(2) a set of one or more ICs, which optionally may also include storage means for storing data, computer programs;

(3) an ASIC, such as a Modem (Modem);

(4) a module that may be embedded within other devices;

(5) receivers, terminal devices, smart terminal devices, cellular phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, and the like;

(6) others, and so forth.

For the case that the communication device may be a chip or a system of chips, see the schematic structural diagram of the chip shown in fig. 6. The chip shown in fig. 6 comprises a processor 601 and an interface 602. The number of the processors 601 may be one or more, and the number of the interfaces 602 may be more.

For the case that the chip is used to implement the function of the terminal device in the embodiment of the present application (such as the terminal device in the foregoing method embodiment), it may be implemented that: receiving Downlink Control Information (DCI) from network equipment, wherein the DCI comprises a uniform transmission configuration indication state;

and determining the uplink transmission beam application time and/or the downlink transmission beam application time corresponding to the unified transmission configuration indication state.

For the case that the chip is used to implement the functions of the network device in the embodiment of the present application:

an interface 602, configured to send downlink control information DCI to a terminal device, where the DCI includes a uniform transmission configuration indication state;

and applying the wave beam according to the downlink control information.

Optionally, the chip further comprises a memory 603, the memory 603 being used for storing necessary computer programs and data.

Those skilled in the art will also appreciate that the various illustrative logical blocks and steps (step) set forth in the embodiments of the present application may be implemented in electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

An embodiment of the present application further provides a system for beam application, where the system includes the communication apparatus as a terminal device (such as the terminal device in the foregoing method embodiment) and the communication apparatus as a network device in the foregoing fig. 4 embodiment, or the system includes the communication apparatus as a terminal device (such as the terminal device in the foregoing method embodiment) and the communication apparatus as a network device in the foregoing fig. 5 embodiment.

The present application also provides a readable storage medium having stored thereon instructions which, when executed by a computer, implement the functionality of any of the above-described method embodiments.

The present application also provides a computer program product which, when executed by a computer, implements the functionality of any of the above-described method embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program is loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer program can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

Those of ordinary skill in the art will understand that: the various numbers of the first, second, etc. mentioned in this application are only used for the convenience of description and are not used to limit the scope of the embodiments of this application, but also to indicate the sequence.

At least one of the present applications may also be described as one or more, and a plurality may be two, three, four or more, and the present application is not limited thereto. In the embodiment of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the like, and the technical features described in "first", "second", "third", "a", "B", "C", and "D" are not in a sequential order or a size order.

The correspondence shown in the tables in the present application may be configured or predefined. The values of the information in each table are only examples, and may be configured to other values, which is not limited in the present application. When the correspondence between the information and each parameter is configured, it is not always necessary to configure all the correspondences indicated in each table. For example, in the table in the present application, the correspondence shown in some rows may not be configured. For another example, appropriate modification adjustments, such as splitting, merging, etc., can be made based on the above tables. The names of the parameters in the tables may be other names understandable by the communication device, and the values or the expression of the parameters may be other values or expressions understandable by the communication device. When the above tables are implemented, other data structures may be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables may be used.

Predefinition in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

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