Hybrid multi-panel uplink precoding for dynamic and semi-persistent scheduling
阅读说明：本技术 动态和半持久性调度混合多面板上行链路预编码 (Hybrid multi-panel uplink precoding for dynamic and semi-persistent scheduling ) 是由 李乔羽 张煜 武良明 徐浩 黄敏 郝辰曦 魏超 陈万士 于 2019-03-11 设计创作，主要内容包括：在常规无线通信系统中,对于数据的重传,仅在下行链路控制信号(DCI)中配置/激活具有单个相关联的探测参考信号(SRS)资源指示符(SRI)的单个发送预编码矩阵指示符(TPMI)。为了在重传中实现更好的性能,UE可以动态地打开/关闭/切换用于重传的面板。(In a conventional wireless communication system, for retransmission of data, a single Transmit Precoding Matrix Indicator (TPMI) having a single associated Sounding Reference Signal (SRS) resource indicator (SRI) is configured/activated only in a downlink control signal (DCI). To achieve better performance in retransmissions, the UE may dynamically turn on/off/switch the panel for retransmissions.)
1. A method performed by a User Equipment (UE), the method comprising:
receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising:
configuration of one or more initial resource combinations for initial transmission of data to the network supported by the configured granted Uplink (UL) resources, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network;
receiving a schedule of the configured granted UL resources from the network;
transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and
retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
2. The method of claim 1, wherein the DCI is a DCI according to release 15 standards of the third generation partnership project (3 GPP).
3. The method of claim 2, wherein the first and second light sources are selected from the group consisting of,
wherein the DCI indicates a combination of an SRI, a TPMI, and an antenna port,
wherein a Redundancy Version (RV) indicated in the DCI is included in the retransmission, and
wherein the one or more interpretation rules specify: the one or more retransmission resource combinations are determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
4. The method of claim 3, wherein the first and second light sources are selected from the group consisting of,
wherein the configured grant UL resources are configured to support the same or more SRIs than the retransmission UL resources, and
wherein the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, and antenna port indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of SRI, TPMI, and antenna port indicated in the DCI does not match the combination of SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and
including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI.
5. The method of claim 4, wherein the first and second light sources are selected from the group consisting of,
wherein the resource parameters further comprise a bandwidth part (BWP),
wherein the DCI further indicates the BWP, and
wherein the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI matches a combination of the SRI, TPMI, antenna port, and BWP of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of SRI, TPMI, antenna port, and BWP indicated in the DCI does not match the combination of SRI, TPMI, antenna port, and BWP of any of the initial resource combinations configured by the RRC configuration, and
including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, antenna port, and BWP indicated in the DCI.
6. The method of claim 3, wherein the first and second light sources are selected from the group consisting of,
wherein the configured grant UL resources are configured to support the same or less SRIs than the retransmission UL resources, and
wherein the one or more interpretation rules specify:
when the combination of the SRI, TPMI and antenna port indicated in the DCI does not match the combination of the SRI, TPMI and antenna port of any initial resource combination of the one or more initial resource combinations configured by the RRC configuration, including the combination of the SRI, TPMI and antenna port indicated in the DCI and at least one initial resource combination of the initial resource combinations in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, and antenna port indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, an
Including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI.
7. The method of claim 6, wherein the one or more interpretation rules specify: when a combination of SRI, TPMI, and antenna port indicated in the DCI matches a combination of SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and when there are a plurality of initial resource combinations, at least one of the other initial resource combinations is also included in the one or more retransmission resource combinations.
8. The method of claim 6, wherein the first and second light sources are selected from the group consisting of,
wherein the resource parameters further comprise a bandwidth part (BWP),
wherein the DCI further indicates the BWP, and
wherein the one or more interpretation rules specify:
when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI does not match a combination of the SRI, TPMI, antenna port, and BWP of any of the one or more initial resource combinations configured by the RRC configuration, including at least one of the combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI and the initial resource combination in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI matches a combination of the SRI, TPMI, antenna port, and BWP of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, an
Including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, antenna port, and BWP indicated in the DCI.
9. The method of claim 2, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration comprises a configuration of a plurality of selections of initial resource combinations, wherein each selection comprises one or more initial resource combinations supported by the configured granted UL resources, and
wherein the one or more interpretation rules specify: interpreting a combination of any one or more of an SRI, a TMPI, and an antenna port indicated in the DCI as a selection index that selects one of the plurality of choices of the initial resource combination, such that an initial resource combination corresponding to the selection index is included in the one or more retransmission resource combinations.
10. The method of claim 9, wherein a Redundancy Version (RV) indicated in the DCI is included in the retransmission.
11. The method of claim 9, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration is such that each initial resource combination comprises a combination of the resource parameters including a Redundancy Version (RV) in addition to the SRI, TMPI and antenna port, and
wherein the one or more interpretation rules specify: interpreting a combination of the RV and any one or more of SRI, TPMI, and antenna port indicated in the DCI as the selection index.
12. The method of claim 9, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration is such that each initial resource combination comprises a combination of the resource parameters including a bandwidth part (BWP) except for SRI, TMPI, and antenna port, and
wherein the selection index includes the BWP and any one or more of SRI, TPMI, and antenna port indicated in the DCI.
13. The method of claim 9, wherein, when using a reserved bit group of one or more reserved bits comprising any of an SRI, a TPMI, and an antenna port indicated in the DCI, the one or more interpretation rules specify determining the one or more retransmission resource combinations based on:
a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations, an
The reserved bit group indicates whether the first retransmission condition or the second transmission condition.
14. The method of claim 13, wherein, when the set of reserved bits indicates the first transmission condition, the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of the SRI, TPMI, and antenna port indicated in the DCI except the reserved bit groups does not match the combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and
when one or more reserved bits of any of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI are used, all of the initial resource combinations are included in the one or more retransmission resource combinations.
15. The method of claim 13, wherein when the reserved set of bits indicates the second transmission condition, the one or more interpretation rules specify:
when a combination of the SRI, TPMI, and antenna port indicated in the DCI except the reserved bit group does not match a combination of the SRI, TPMI, and antenna port of any of the one or more initial resource combinations configured by the RRC configuration, including at least one of the combination of the SRI, TPMI, and antenna port indicated in the DCI and the initial resource combination in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, and antenna port other than the reserved bit group indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, and
when one or more reserved bits of any of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI are used, all of the initial resource combinations are included in the one or more retransmission resource combinations.
16. A method performed by a network node, the method comprising:
transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising:
configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network node;
transmitting a schedule of the configured granted UL resources to the UE;
upon an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, transmitting Downlink Control Information (DCI) to the UE for retransmission of the data, the DCI including a schedule for retransmission of UL resources; and
receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports,
wherein the DCI indicates a combination of an SRI, a TPMI, and an antenna port, and
wherein the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations are to be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
17. The method of claim 16, wherein the DCI is a DCI according to release 15 standards of the third generation partnership project (3 GPP).
18. The method of claim 17, wherein the first and second light sources are selected from the group consisting of,
wherein the DCI comprises a Redundancy Version (RV),
wherein the configured grant UL resources are configured to support the same or more SRIs than the retransmission UL resources, and
wherein the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, and antenna port indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of SRI, TPMI, and antenna port indicated in the DCI does not match the combination of SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and
including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI.
19. The method of claim 18, wherein the first and second portions are selected from the group consisting of,
wherein the resource parameters further comprise a bandwidth part (BWP),
wherein the DCI further indicates the BWP, and
wherein the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI matches a combination of the SRI, TPMI, antenna port, and BWP of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of SRI, TPMI, antenna port, and BWP indicated in the DCI does not match the combination of SRI, TPMI, antenna port, and BWP of any of the initial resource combinations configured by the RRC configuration, and
including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, antenna port, and BWP indicated in the DCI.
20. The method of claim 17, wherein the first and second light sources are selected from the group consisting of,
wherein the DCI comprises a Redundancy Version (RV),
wherein the configured grant UL resources are configured to support the same or less SRIs than the retransmission UL resources, and
wherein the one or more interpretation rules specify:
when the combination of the SRI, TPMI and antenna port indicated in the DCI does not match the combination of the SRI, TPMI and antenna port of any initial resource combination of the one or more initial resource combinations configured by the RRC configuration, including the combination of the SRI, TPMI and antenna port indicated in the DCI and at least one initial resource combination of the initial resource combinations in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, and antenna port indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, an
Including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI.
21. The method of claim 20, wherein the one or more interpretation rules specify: when a combination of SRI, TPMI, and antenna port indicated in the DCI matches a combination of SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and when there are a plurality of initial resource combinations, at least one of the other initial resource combinations is also included in the one or more retransmission resource combinations.
22. The method of claim 20, wherein the first and second portions are selected from the group consisting of,
wherein the resource parameters further comprise a bandwidth part (BWP),
wherein the DCI further indicates the BWP, and
wherein the one or more interpretation rules specify:
when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI does not match a combination of the SRI, TPMI, antenna port, and BWP of any of the one or more initial resource combinations configured by the RRC configuration, including at least one of the combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI and the initial resource combination in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, antenna port, and BWP indicated in the DCI matches a combination of the SRI, TPMI, antenna port, and BWP of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, an
Including all of the initial resource combinations in the one or more retransmission resource combinations when using one or more reserved bits of any of the SRI, TPMI, antenna port, and BWP indicated in the DCI.
23. The method of claim 17, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration comprises a configuration of a plurality of selections of initial resource combinations, wherein each selection comprises one or more initial resource combinations supported by the configured granted UL resources, and
wherein the one or more interpretation rules specify: interpreting a combination of any one or more of an SRI, a TMPI, and an antenna port indicated in the DCI as a selection index that selects one of the plurality of choices of the initial resource combination, such that an initial resource combination corresponding to the selection index is included in the one or more retransmission resource combinations.
24. The method of claim 23, wherein a Redundancy Version (RV) is indicated in the DCI.
25. The method of claim 23, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration is such that each initial resource combination comprises a combination of the resource parameters including a Redundancy Version (RV) in addition to the SRI, TMPI and antenna port, and
wherein the one or more interpretation rules specify: interpreting a combination of the RV and any one or more of SRI, TPMI, and antenna port indicated in the DCI as the selection index.
26. The method of claim 23, wherein the first and second light sources are selected from the group consisting of,
wherein the RRC configuration is such that each initial resource combination comprises a combination of the resource parameters including a bandwidth part (BWP) except for SRI, TMPI, and antenna port, and
wherein the selection index includes the BWP and any one or more of SRI, TPMI, and antenna port indicated in the DCI.
27. The method of claim 23, wherein, when using a reserved bit group of one or more reserved bits comprising any of an SRI, a TPMI, and an antenna port indicated in the DCI, the one or more interpretation rules specify determining the one or more retransmission resource combinations based on:
a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations, an
The reserved bit group indicates whether the first retransmission condition or the second transmission condition.
28. The method of claim 27, wherein, when the set of reserved bits indicates the first transmission condition, the one or more interpretation rules specify:
muting the matched initial resource combination and including all other initial resource combinations in the one or more retransmission resource combinations when a combination of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of one of the initial resource combinations configured by the RRC configuration,
excluding all of the initial resource combinations from the one or more retransmission resource combinations when the combination of the SRI, TPMI, and antenna port indicated in the DCI except the reserved bit groups does not match the combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, and
when one or more reserved bits of any of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI are used, all of the initial resource combinations are included in the one or more retransmission resource combinations.
29. The method of claim 27, wherein when the reserved set of bits indicates the second transmission condition, the one or more interpretation rules specify:
when a combination of the SRI, TPMI, and antenna port indicated in the DCI except the reserved bit group does not match a combination of the SRI, TPMI, and antenna port of any of the one or more initial resource combinations configured by the RRC configuration, including at least one of the combination of the SRI, TPMI, and antenna port indicated in the DCI and the initial resource combination in the one or more retransmission resource combinations,
when a combination of the SRI, TPMI, and antenna port other than the reserved bit group indicated in the DCI matches a combination of the SRI, TPMI, and antenna port of any of the initial resource combinations configured by the RRC configuration, including the matched initial resource combination in the one or more retransmission resource combinations, and
when one or more reserved bits of any of the SRI, TPMI, and antenna port, other than the reserved bit group, indicated in the DCI are used, all of the initial resource combinations are included in the one or more retransmission resource combinations.
30. A method performed by a User Equipment (UE), the method comprising:
receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising a configuration of one or more initial resource combinations supported by configured grant Uplink (UL) resources for initial transmission of data to the network;
receiving a schedule of the configured granted UL resources from the network;
transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
determining one or more retransmission resource combinations based on the DCI, the DCI indicating a plurality of resource combinations; and
retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
31. The method of claim 30, wherein each resource combination of the plurality of resource combinations indicated in the DCI that does not use RV, SRI, TMPI, and reserved bits for antenna ports is included in the one or more transmission resource combinations.
32. The method of claim 30, wherein said step of selecting said target,
wherein at most a first N resource combinations of the plurality of resource combinations are included in the one or more transmission resource combinations, and
wherein N is indicated in the DCI or configured by the RRC configuration.
33. A method performed by a network node, the method comprising:
transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising a configuration of one or more initial resource combinations for initial transmission of data to a network supported by configured grant Uplink (UL) resources;
transmitting a schedule of the configured granted UL resources to the UE;
upon an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, transmitting Downlink Control Information (DCI) to the UE for retransmission of the data, the DCI including a schedule for retransmission of UL resources and indicating a plurality of resource combinations; and
receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
34. The method of claim 33, wherein one or more of the plurality of resource combinations indicated in the DCI do not use RV, SRI, TMPI, and reserved bits for antenna ports.
35. The method of claim 33, wherein a number N is included in the RRC configuration or in the DCI, the number N specifying to the UE: a maximum of a first N resource combinations of the plurality of resource combinations are to be included in the one or more transmission resource combinations.
36. A User Equipment (UE), comprising:
a transceiver circuit;
a memory circuit; and
a processor circuit for a processor to be programmed,
wherein the transceiver circuitry, the memory circuitry, and the processor circuitry are configured to:
receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising:
configuration of one or more initial resource combinations for initial transmission of data to the network supported by the configured granted Uplink (UL) resources, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network;
receiving a schedule of the configured granted UL resources from the network;
transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and
retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
37. A network node, comprising:
a transceiver circuit;
a memory circuit; and
a processor circuit for a processor to be programmed,
wherein the transceiver circuitry, the memory circuitry, and the processor circuitry are configured to:
transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising:
configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network node;
transmitting a schedule of the configured granted UL resources to the UE;
upon an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, transmitting Downlink Control Information (DCI) to the UE for retransmission of the data, the DCI including a schedule for retransmission of UL resources; and
receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports,
wherein the DCI indicates a combination of an SRI, a TPMI, and an antenna port, and
wherein the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations are to be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
38. A User Equipment (UE), comprising:
a transceiver circuit;
a memory circuit; and
a processor circuit for a processor to be programmed,
wherein the transceiver circuitry, the memory circuitry, and the processor circuitry are configured to:
receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising a configuration of one or more initial resource combinations supported by configured grant Uplink (UL) resources for initial transmission of data to the network;
receiving a schedule of the configured granted UL resources from the network;
transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
determining one or more retransmission resource combinations based on the DCI, the DCI indicating a plurality of resource combinations; and
retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
39. A network node, comprising:
a transceiver circuit;
a memory circuit; and
a processor circuit for a processor to be programmed,
wherein the transceiver circuitry, the memory circuitry, and the processor circuitry are configured to:
transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising a configuration of one or more initial resource combinations for initial transmission of data to a network supported by configured grant Uplink (UL) resources;
transmitting a schedule of the configured granted UL resources to the UE;
upon an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, transmitting Downlink Control Information (DCI) to the UE for retransmission of the data, the DCI including a schedule for retransmission of UL resources and indicating a plurality of resource combinations; and
receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
40. A User Equipment (UE), comprising:
means for receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising:
configuration of one or more initial resource combinations for initial transmission of data to the network supported by the configured granted Uplink (UL) resources, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network;
means for receiving a schedule of the configured granted UL resources from the network;
means for transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
means for receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
means for determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and
means for retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
41. A network node, comprising:
means for transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising:
configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network node;
means for transmitting, to the UE, a scheduling of the configured granted UL resources;
means for transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when an error occurs in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI including a schedule for retransmitting UL resources; and
means for receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports,
wherein the DCI indicates a combination of an SRI, a TPMI, and an antenna port, and
wherein the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations are to be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
42. A User Equipment (UE), comprising:
means for receiving a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising a configuration of one or more initial resource combinations supported by configured granted Uplink (UL) resources for initial transmission of data to the network;
means for receiving a schedule of the configured granted UL resources from the network;
means for transmitting the data to the network on the configured granted UL resources using the one or more initial resource combinations;
means for receiving Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
means for determining one or more retransmission resource combinations based on the DCI, the DCI indicating a plurality of resource combinations; and
means for retransmitting the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
43. A network node, comprising:
means for transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising a configuration of one or more initial resource combinations for initial transmission of data to a network supported by configured grant Uplink (UL) resources;
means for transmitting, to the UE, a scheduling of the configured granted UL resources;
means for transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when an error occurs in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI including a schedule for retransmitting UL resources and indicating a plurality of resource combinations; and
means for receiving the data from the UE on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
44. A non-transitory computer-readable medium storing computer-executable instructions for a User Equipment (UE), the computer-executable instructions comprising:
one or more instructions that cause the UE to receive a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising:
configuration of one or more initial resource combinations for initial transmission of data to the network supported by the configured granted Uplink (UL) resources, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network;
one or more instructions that cause the UE to receive, from the network, scheduling of the configured granted UL resources;
one or more instructions that cause the UE to transmit the data to the network on the configured granted UL resources using the one or more initial resource combinations;
one or more instructions that cause the UE to receive Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
one or more instructions that cause the UE to determine one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and
one or more instructions that cause the UE to retransmit the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
45. A non-transitory computer-readable medium storing computer-executable instructions for a network node, the computer-executable instructions comprising:
one or more instructions that cause the network node to transmit a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising:
configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node, and
one or more interpretation rules to be applied by the UE for retransmission of the data to the network node;
causing the network node to transmit one or more instructions to the UE to schedule the configured granted UL resources;
one or more instructions that cause the network node to transmit Downlink Control Information (DCI) for retransmission of the data to the UE when an error occurs in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting UL resources; and
one or more instructions that cause the network node to use the one or more retransmission resources to combine to receive the data from the UE on the retransmission UL resource,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports,
wherein the DCI indicates a combination of an SRI, a TPMI, and an antenna port, and
wherein the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations are to be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
46. A non-transitory computer-readable medium storing computer-executable instructions for a User Equipment (UE), the computer-executable instructions comprising:
one or more instructions that cause the UE to receive a Radio Resource Control (RRC) configuration from a network, the RRC configuration comprising a configuration of one or more initial resource combinations supported by configured granted Uplink (UL) resources for initial transmission of data to the network;
one or more instructions that cause the UE to receive, from the network, scheduling of the configured granted UL resources;
one or more instructions that cause the UE to transmit the data to the network on the configured granted UL resources using the one or more initial resource combinations;
one or more instructions that cause the UE to receive Downlink Control Information (DCI) from the network for retransmission of the data, the DCI including a schedule for retransmission of UL resources;
one or more instructions that cause the UE to determine one or more retransmission resource combinations based on the DCI, the DCI indicating a plurality of resource combinations; and
one or more instructions that cause the UE to retransmit the data on the retransmission UL resource using the one or more retransmission resource combinations,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
47. A non-transitory computer-readable medium storing computer-executable instructions for a network node, the computer-executable instructions comprising:
one or more instructions that cause the network node to transmit a Radio Resource Control (RRC) configuration to a User Equipment (UE), the RRC configuration comprising a configuration of one or more initial resource combinations for initial transmission of data to a network supported by configured grant Uplink (UL) resources;
causing the network node to transmit one or more instructions to the UE to schedule the configured granted UL resources;
one or more instructions that cause the network node to transmit Downlink Control Information (DCI) for retransmission of the data to the UE when an error occurs in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting UL resources and indicating a plurality of resource combinations; and
one or more instructions that cause the network node to use the one or more retransmission resources to combine to receive the data from the UE on the retransmission UL resource,
wherein each initial resource combination and each retransmission resource combination comprises a combination of resource parameters including any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
Technical Field
Various aspects described herein relate generally to wireless communication systems and, more particularly, to dynamic and semi-persistent scheduling (SPS) hybrid multi-panel Uplink (UL) precoding.
Background
Wireless communication systems have undergone several generations of development, including first generation analog wireless telephony service (1G), second generation (2G) digital wireless telephony service (including temporary 2.5G and 2.75G networks), third generation (3G) high speed data, internet-capable wireless services, and fourth generation (4G) services (e.g., Long Term Evolution (LTE) or WiMax). There are many different types of wireless communication systems in use today, including cellular as well as Personal Communication Services (PCS) systems. Examples of known cellular systems include the cellular analog Advanced Mobile Phone System (AMPS), and digital cellular systems based on: code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), global system for mobile access (GSM) variants of TDMA, and the like.
Fifth generation (5G) mobile standards require higher data transfer speeds, a larger number of connections and better coverage, among other improvements. According to the next generation mobile network alliance, the 5G standard is designed to provide data rates of tens of megabits per second to each of thousands of users, with 1 gigabit per second being provided to tens of workers on an office floor. Hundreds of thousands of simultaneous connections should be supported in order to support large sensor deployments. Therefore, the spectral efficiency of 5G mobile communication should be significantly enhanced compared to the current 4G standard. Furthermore, the signaling efficiency should be enhanced and the delay should be reduced considerably compared to the current standard.
Some wireless communication networks, such as 5G, support operation at very high or even Extremely High Frequency (EHF) bands, such as the millimeter wave (mmW) band (typically, 1mm to 10mm wavelength, or 30 to 300 GHz). These extremely high frequencies can support very high throughput, such as up to six gigabits per second (Gbps).
Typical multi-panel User Equipment (UE) does not have the capability to coherently combine between certain panels. Thus, during Sounding Reference Signal (SRS) transmission, only a certain part of the panel may be used for a certain SRS resource, and a Transmit Precoding Matrix Indicator (TPMI) with configuration/indication of the associated SRS Resource Indicator (SRI) may only be used by the certain part of the panel.
In release 15 of the third generation partnership project (3GPP) standard, only a single TPMI with a single associated SRI is configured/activated for a configured grant Physical Uplink Shared Channel (PUSCH) transmission. During PUSCH transmission with a configured grant, another portion of the panel not associated with the configured/indicated TPMI will not be used, even though that portion would have potential benefits in terms of diversity.
Disclosure of Invention
This summary identifies features of some example aspects and is not an exclusive or exhaustive description of the disclosed subject matter. The inclusion or omission of features or aspects in this summary is not intended to indicate relative importance of such features. Additional features and aspects are described, and will become apparent to those skilled in the art upon reading the following detailed description and viewing the drawings that form a part hereof.
An example method performed by a User Equipment (UE) is disclosed. The method comprises the following steps: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network. The method further comprises the following steps: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The method further comprises the following steps: determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
An example method performed by a network node is disclosed. The method comprises the following steps: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network node. The method further comprises the following steps: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting the UL resources. The method further comprises the following steps: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports. The DCI indicates a combination of SRI, TPMI, and antenna port. Further, the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations will be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
Another example method performed by a User Equipment (UE) is disclosed. The method comprises the following steps: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The method further comprises the following steps: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The method further comprises the following steps: determining one or more retransmission resource combinations based on the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. The DCI indicates a plurality of resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Another example method performed by a network node is disclosed. The method comprises the following steps: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The method further comprises the following steps: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations. The DCI includes scheduling for retransmission of UL resources and indicates a plurality of resource combinations. The method further comprises the following steps: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
An example User Equipment (UE) is disclosed. The UE includes transceiver circuitry, memory circuitry, and processor circuitry. The transceiver, the memory circuit, and the processor circuit are configured to: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network. The transceiver, the memory circuit, and the processor circuit are further configured to: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The transceiver, the memory circuit, and the processor circuit are further configured to: determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
An example network node is disclosed. The network node comprises a transceiver circuit, a memory circuit and a processor circuit. The transceiver, the memory circuit, and the processor circuit are configured to: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network node. The transceiver, the memory circuit, and the processor circuit are further configured to: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting the UL resources. The transceiver, the memory circuit, and the processor circuit are further configured to: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports. The DCI indicates a combination of SRI, TPMI, and antenna port. Further, the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations will be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
Another example User Equipment (UE) is disclosed. The UE includes transceiver circuitry, memory circuitry, and processor circuitry. The transceiver, the memory circuit, and the processor circuit are configured to: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The transceiver, the memory circuit, and the processor circuit are further configured to: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The transceiver, the memory circuit, and the processor circuit are further configured to: determining one or more retransmission resource combinations based on the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. The DCI indicates a plurality of resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Another example network node is disclosed. The network node comprises a transceiver circuit, a memory circuit and a processor circuit. The transceiver, the memory circuit, and the processor circuit are configured to: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The transceiver, the memory circuit, and the processor circuit are further configured to: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations. The DCI includes scheduling for retransmission of UL resources and indicates a plurality of resource combinations. The transceiver, the memory circuit, and the processor circuit are further configured to: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Another example User Equipment (UE) is disclosed. The UE includes: means for receiving a Radio Resource Control (RRC) configuration from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network. The UE also includes: means for receiving a schedule of configured granted UL resources from a network; means for transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and means for receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The UE also includes: means for determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and means for retransmitting the data on the retransmission UL resource using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
Another example network node is disclosed. The network node comprises: means for transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network node. The network node further comprises: means for transmitting, to the UE, a scheduling of the configured granted UL resources; and means for transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting the UL resources. The network node further comprises: means for receiving data from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports. The DCI indicates a combination of SRI, TPMI, and antenna port. Further, the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations will be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
Another example User Equipment (UE) is disclosed. The UE includes: means for receiving a Radio Resource Control (RRC) configuration from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The UE also includes: means for receiving a schedule of configured granted UL resources from a network; means for transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and means for receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The UE also includes: means for determining one or more retransmission resource combinations based on the DCI; and means for retransmitting the data on the retransmission UL resource using one or more retransmission resource combinations. The DCI indicates a plurality of resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Another example network node is disclosed. The network node comprises: means for transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The network node further comprises: means for transmitting, to the UE, a scheduling of the configured granted UL resources; and means for transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured grant UL resources using the one or more initial resource combinations. The DCI includes scheduling for retransmission of UL resources and indicates a plurality of resource combinations. The network node further comprises: means for receiving data from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
A non-transitory computer-readable medium storing computer-executable instructions for a User Equipment (UE) is disclosed. The executable instructions include one or more instructions that cause the UE to: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network. The executable instructions also include one or more instructions that cause the UE to: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The executable instructions also include one or more instructions that cause the UE to: determining one or more retransmission resource combinations based on the one or more interpretation rules and the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports.
A non-transitory computer-readable medium storing computer-executable instructions for a network node is disclosed. The executable instructions include one or more instructions that cause the network node to: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data from the UE to the network node. The RRC configuration also includes one or more interpretation rules to be applied by the UE for retransmission of data to the network node. The executable instructions also include one or more instructions that cause the network node to: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations, the DCI comprising a schedule for retransmitting the UL resources. The executable instructions also include one or more instructions that cause the network node to: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and antenna ports. The DCI indicates a combination of SRI, TPMI, and antenna port. Further, the one or more interpretation rules specify to the UE: the one or more retransmission resource combinations will be determined based on a comparison of the SRI, TPMI, and antenna ports indicated in the DCI with the SRI, TPMI, and antenna ports of the one or more initial resource combinations configured by the RRC configuration.
Another non-transitory computer-readable medium storing computer-executable instructions for a User Equipment (UE) is disclosed. The executable instructions include one or more instructions that cause the UE to: a Radio Resource Control (RRC) configuration is received from a network. The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The executable instructions also include one or more instructions that cause the UE to: receiving a schedule of configured granted UL resources from a network; transmitting data to the network on the configured granted UL resources using one or more initial resource combinations; and receiving Downlink Control Information (DCI) for retransmission of the data from the network. The DCI includes scheduling for retransmission of UL resources. The executable instructions include one or more instructions that cause the UE to: determining one or more retransmission resource combinations based on the DCI; and retransmitting the data on the retransmission UL resources using one or more retransmission resource combinations. The DCI indicates a plurality of resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Another non-transitory computer-readable medium storing computer-executable instructions for a network node is disclosed. The executable instructions include one or more instructions that cause the network node to: transmitting a Radio Resource Control (RRC) configuration to a User Equipment (UE). The RRC configuration includes a configuration of one or more initial resource combinations supported by the configured granted Uplink (UL) resources for initial transmission of data to the network. The executable instructions also include one or more instructions that cause the network node to: transmitting a schedule of the configured granted UL resources to the UE; and transmitting Downlink Control Information (DCI) for retransmission of the data to the UE when there is an error in receiving the data from the UE on the configured granted UL resources using the one or more initial resource combinations. The DCI includes scheduling for retransmission of UL resources and indicates a plurality of resource combinations. The executable instructions also include one or more instructions that cause the network node to: data is received from the UE on the retransmission UL resources using one or more retransmission resource combinations. Each initial resource combination and each retransmission resource combination comprises a combination of resource parameters. The resource parameters include any one or more of a Redundancy Version (RV), a Sounding Reference Signal (SRS) resource indicator (SRI), a Transmit Precoding Matrix Indicator (TPMI), and an antenna port.
Other objects and advantages associated with the aspects disclosed herein will be apparent to those skilled in the art based on the drawings and detailed description.
Drawings
The accompanying drawings are presented to aid in the description of examples of one or more aspects of the disclosed subject matter and are provided solely for illustration and not limitation:
fig. 1 illustrates an example wireless communication system in accordance with one or more aspects of the present disclosure;
fig. 2 is a simplified block diagram of several example aspects of components that may be employed in a wireless communication node and configured to support communication in accordance with one or more aspects of the present disclosure;
fig. 3 illustrates an example method performed by a UE and a network node to communicate with each other in accordance with one or more aspects of the present disclosure; and
fig. 4 and 5 show simplified block diagrams of several example aspects of an apparatus configured to support RTT positioning.
Detailed Description
Aspects of the subject matter are provided in the following description and related drawings directed to specific examples of the disclosed subject matter. Alternatives may be devised without departing from the scope of the disclosed subject matter. Additionally, well-known elements will not be described in detail or will be omitted so as not to obscure the relevant details.
The word "exemplary" is used herein to mean "serving as an example, instance, or illustration. Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects. Likewise, the term "aspects" does not require that all aspects include the discussed feature, advantage or mode of operation.
The terminology used herein describes particular aspects only and should not be interpreted as limiting any aspect disclosed herein. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood by those within the art that the terms "comprises," "comprising," "includes," "including" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Further, various aspects may be described in terms of sequences of actions to be performed by, for example, elements of a computing device. Those skilled in the art will recognize that various actions described herein can be performed by specific circuits (e.g., Application Specific Integrated Circuits (ASICs)), by program instructions being executed by one or more processors, or by a combination of both. Additionally, these sequence of actions described herein can be considered to be embodied entirely within any form of non-transitory computer readable medium having stored thereon a corresponding set of computer instructions that upon execution would cause an associated processor to perform the functions described herein. Thus, the various aspects described herein may be embodied in a number of different forms, all of which have been contemplated to be within the scope of the claimed subject matter. Additionally, for each of the aspects described herein, the corresponding form of any such aspect may be described herein as, for example, "a logic unit configured as … …" and/or other structured component configured to perform the described actions.
As used herein, unless otherwise specified, the terms "user equipment" (UE) and "base station" are not intended to be specific to or otherwise limited to any particular Radio Access Technology (RAT). In general, such a UE may be any wireless communication device (e.g., a mobile phone, router, tablet computer, laptop computer, tracking device, internet of things (IoT) device, etc.) used by a user to communicate over a wireless communication network. The UE may be mobile or (e.g., at certain times) stationary and may communicate with a Radio Access Network (RAN). As used herein, the term "UE" may be interchangeably referred to as an "access terminal" or "AT," "client device," "wireless device," "subscriber terminal," "subscriber station," "user terminal" or UT, "mobile terminal," "mobile station," or variations thereof. Generally, a UE is able to communicate with a core network via a RAN, and through the core network, the UE is able to connect with external networks (such as the internet) and with other UEs. Of course, other mechanisms for the UE to connect to the core network and/or the internet are also possible, such as through a wired access network, a WiFi network (e.g., based on IEEE 802.11, etc.), and so forth.
In communication with a UE, a base station may operate in accordance with one of several RATs, depending on the network in which the base station is deployed, and may alternatively be referred to as an Access Point (AP), a network node, a node B, an evolved node B (enb), a general node B (also referred to as a gNB or gnnodeb), or the like. Additionally, in some systems, the base station may only provide edge node signaling functionality, while in other systems it may provide additional control and/or network management functionality.
The UE may be embodied by any of a number of types of devices, including but not limited to: printed Circuit (PC) cards, compact flash devices, external or internal modems, wireless or wired phones, smart phones, tablet devices, tracking devices, asset tags, and the like. The communication link through which the UE sends signals to the RAN is called an uplink channel (e.g., a reverse traffic channel, a reverse control channel, an access channel, etc.). The communication link through which the RAN can send signals to the UEs is called a downlink or forward link channel (e.g., paging channel, control channel, broadcast channel, forward traffic channel, etc.). As used herein, the term Traffic Channel (TCH) may refer to an uplink/reverse traffic channel or a downlink/forward traffic channel.
Fig. 1 illustrates an example wireless communication system 100 in accordance with one or more aspects. The wireless communication system 100, which may also be referred to as a Wireless Wide Area Network (WWAN), may include various base stations 102 and various UEs 104. Base station 102 may include a macro cell (high power cellular base station) and/or a small cell (low power cellular base station). The macro cell may include an evolved node b (enb) (where the wireless communication system 100 corresponds to an LTE network), a gdnodeb (gnb) (where the wireless communication system 100 corresponds to a 5G network), and/or combinations thereof, and the small cell may include a femto cell, a pico cell, a micro cell, and/or the like.
The base stations 102 may collectively form a Radio Access Network (RAN) and interface with an Evolved Packet Core (EPC) or Next Generation Core (NGC) over backhaul links 122. Base station 102 may perform functions related to one or more of the following, among other functions: transmitting user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, RAN sharing, Multimedia Broadcast Multicast Service (MBMS), subscriber and device tracking, RAN Information Management (RIM), paging, positioning, and transmission of warning messages. Base stations 102 may communicate with each other directly or indirectly (e.g., through the EPC/NGC) through backhaul links 134 (which may be wired or wireless).
The base station 102 may communicate wirelessly with the UE 104. Each base station 102 may provide communication coverage for a respective geographic coverage area 110. In an aspect, although not shown in fig. 1, coverage area 110 may be subdivided into multiple cells (e.g., three) or sectors, each cell corresponding to a single antenna or antenna array of base station 102. As used herein, the term "cell" or "sector" can correspond to one of a plurality of cells of base station 102, or to base station 102 itself, depending on the context.
While adjacent macro cell geographic coverage areas 110 may partially overlap (e.g., in a handover region), some of the geographic coverage areas 110 may substantially overlap with larger geographic coverage areas 110. For example, the small cell base station 102 'may have a coverage area 110' that substantially overlaps the coverage area 110 of one or more macro cell base stations 102. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. The heterogeneous network may also include home enbs (henbs) and/or home nodebs, which may provide services to a restricted group known as a Closed Subscriber Group (CSG). The communication link 120 between the base station 102 and the UE 104 may include an Uplink (UL) (also referred to as a reverse link) transmission from the UE 104 to the base station 102 and/or a Downlink (DL) (also referred to as a forward link) transmission from the base station 102 to the UE 104. The communication link 120 may use MIMO antenna techniques including spatial multiplexing, beamforming, and/or transmit diversity. The communication link may be through one or more carriers. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL than for UL).
The wireless communication system 100 may also include a Wireless Local Area Network (WLAN) Access Point (AP)150 that communicates with a WLAN Station (STA)152 via a communication link 154 in an unlicensed spectrum (e.g., 5 GHz). When communicating in the unlicensed spectrum, WLAN STA 152 and/or WLAN AP 150 may perform a Clear Channel Assessment (CCA) prior to communicating to determine whether a channel is available.
The small cell base station 102' may operate in licensed and/or unlicensed spectrum. When operating in unlicensed spectrum, the small cell base station 102' may employ LTE or 5G technology and use the same 5GHz unlicensed spectrum as used by the WLAN AP 150. A small cell base station 102' employing LTE/5G in unlicensed spectrum may improve coverage and/or increase capacity of an access network. LTE in unlicensed spectrum may be referred to as unlicensed LTE (LTE-U), Licensed Assisted Access (LAA), or MulteFire.
The wireless communication system 100 may also include a mmW base station 180 that may operate in mmW frequencies and/or near mmW frequencies to communicate with the UE 182. Extremely High Frequency (EHF) is a portion of the RF electromagnetic spectrum. The EHF has a range of 30GHz to 300GHz and has a wavelength between 1 millimeter and 10 millimeters. The radio waves in this frequency band may be referred to as millimeter waves. Near mmW can be extended down to 3GHz frequencies with a wavelength of 100 mm. The ultra-high frequency (SHF) band extends between 3GHz and 30GHz, also known as centimeter waves. Communications using the mmW/near mmW radio frequency band have high path loss and relatively short range. The mmW base station 180 may utilize beamforming 184 with the UE 182 to compensate for extremely high path loss and short range. Further, it will be appreciated that in alternative configurations, one or more base stations 102 may also transmit using mmW or near mmW and beamforming. Accordingly, it will be appreciated that the foregoing description is merely exemplary and should not be construed as limiting the various aspects disclosed herein.
The wireless communication system 100 may also include one or more UEs, such as UE 190, indirectly connected to one or more communication networks via one or more device-to-device (D2D) peer-to-peer (P2P) links. In the embodiment of fig. 1, the UE 190 has a D2D P2P link 192 with one of the UEs 104 connected to one of the base stations 102 (e.g., the UE 190 may indirectly obtain cellular connectivity over a D2D P2P link 192) and a D2D P2P link 194 with the WLAN STA 152 connected to the WLAN AP 150 (the UE 190 may indirectly obtain WLAN-based internet connectivity over a D2D P2P link 194). In one example, any well-known D2D Radio Access Technology (RAT) may be utilized (such as LTE-direct (LTE-D), WiFi-direct (WiFi-D), or,Etc.) to support the D2D P2P links 192-194.
Fig. 2 illustrates several example components (represented by respective blocks) that may be incorporated into apparatus 202 and apparatus 204 (corresponding to, e.g., a UE and a base station (e.g., eNB, gNB), respectively) to support the operations disclosed herein. As an example, apparatus 202 may correspond to a UE, and apparatus 204 may correspond to a network node, such as a gNB 222 and/or an eNB 224. It will be appreciated that the components may be implemented in different implementations in different types of devices (e.g., in an ASIC, in a system on a chip (SoC), etc.). The illustrated components may also be incorporated in other devices in a communication system. For example, other devices in the system may include similar components to those described to provide similar functionality. In addition, a given apparatus may contain one or more of the components. For example, an apparatus may include multiple transceiver components that enable the apparatus to operate on multiple carriers and/or communicate via different technologies.
Apparatus 202 and apparatus 204 may each include at least one wireless communication device (represented by communication devices 208 and 214) for communicating with other nodes via at least one specified RAT (e.g., LTE, 5G NR). Each communication device 208 may include at least one transmitter (represented by transmitter 210) for transmitting and encoding signals (e.g., messages, indications, information, etc.) and at least one receiver (represented by receiver 212) for receiving and decoding signals (e.g., messages, indications, information, pilots, etc.). Each communication device 214 may include at least one transmitter (represented by transmitter 216) for transmitting signals (e.g., messages, indications, information, pilots, etc.) and at least one receiver (represented by receiver 218) for receiving signals (e.g., messages, indications, information, etc.).
The transmitter and receiver may comprise integrated devices (e.g., transmitter circuitry and receiver circuitry embodied as a single communication device) in some implementations, may comprise separate transmitter devices and separate receiver devices in some implementations, or may be embodied in other ways in other implementations. In an aspect, a transmitter may include multiple antennas (such as an antenna array) that allow a respective apparatus to perform transmit "beamforming," as further described herein. Similarly, a receiver may include multiple antennas (e.g., an antenna array) that allow the respective apparatus to perform receive beamforming, as further described herein. In an aspect, a transmitter and a receiver may share the same multiple antennas, such that the respective devices may only receive or transmit at a given time, rather than simultaneously. The wireless communication device (e.g., one of the plurality of wireless communication devices) of apparatus 204 may also include a Network Listening Module (NLM) or the like for performing various measurements.
Apparatus 204 may include at least one communication device (represented by communication device 220) for communicating with other nodes. For example, the communication device 220 can include a network interface (e.g., one or more network access ports) configured to communicate with one or more network entities via a wire-based backhaul connection or a wireless backhaul connection. In some aspects, the communication device 220 may be implemented as a transceiver configured to support wire-based or wireless signal communication. Such communication may involve, for example, sending and receiving messages, parameters, or other types of information. Thus, in the example of fig. 2, the communication device 220 is shown as including a transmitter 222 and a receiver 224 (e.g., a network access port for transmitting and receiving).
Devices 202 and 204 may also include other components used in connection with the operations disclosed herein. The apparatus 202 may include a processing system 232 to provide functionality relating to, for example, communication with a network. The apparatus 204 may include a processing system 234 for providing functionality relating to, for example, communication with a UE. In an aspect, the processing systems 232 and 234 may include, for example, one or more general purpose processors, multi-core processors, ASICs, Digital Signal Processors (DSPs), Field Programmable Gate Arrays (FPGAs), or other programmable logic devices or processing circuits.
The apparatuses 202 and 204 may include memory components 238 and 240 (e.g., each comprising a memory device) for maintaining information (e.g., information indicating reserved resources, thresholds, parameters, etc.), respectively. Additionally, the apparatuses 202 and 204 may include user interface devices 244 and 246, respectively, the user interface devices 244 and 246 for providing indications (e.g., audible and/or visual indications) to a user and/or for receiving user input (e.g., upon user action of a sensing device such as a keypad, touch screen, microphone, etc.).
For convenience, devices 202 and 204 are illustrated in fig. 2 as including various components that may be configured in accordance with various examples described herein. However, it will be appreciated that the illustrated blocks may have different functionality in different designs.
The components of FIG. 2 may be implemented in various ways. In some implementations, the components of fig. 2 may be implemented in one or more circuits, such as one or more processors and/or one or more ASICs (which may include one or more processors). Here, each circuit may use and/or contain at least one memory component for storing information or executable code used by the circuit to provide such functionality. For example, some or all of the functionality represented by blocks 208, 232, 238, and 244 may be implemented by processor and memory components of apparatus 202 (e.g., by execution of appropriate code and/or by appropriate configuration of processor components). Similarly, some or all of the functionality represented by blocks 214, 220, 234, 240, and 246 may be implemented by processor and memory components of device 204 (e.g., by execution of appropriate code and/or by appropriate configuration of processor components).
In an aspect, the device 204 may correspond to a "small cell" or home gbnodeb. Device 202 may send and receive messages via wireless link 260 with device 204 that include information related to various types of communications (e.g., voice, data, multimedia services, associated control signals, etc.). The wireless link 260 may operate over a communication medium of interest (shown, for example, as medium 262 in fig. 2), which may be shared with other communications as well as other RATs. This type of medium may include one or more frequency, time, and/or spatial communication resources (e.g., including one or more channels spanning one or more carriers) associated with communications between one or more transmitter/receiver pairs, such as apparatus 204 and apparatus 202 for medium 262.
In general, the apparatus 202 and the apparatus 204 may operate via the wireless link 260 according to one or more radio access types (such as LTE, LTE-U, or 5G NR), depending on the network in which they are deployed. These networks may include, for example, different variants of a CDMA network (e.g., LTE network, 5G NR network, etc.), TDMA network, FDMA network, orthogonal FDMA (ofdma) network, single carrier FDMA (SC-FDMA) network, etc.
As mentioned above, conventionally, only a single TPMI with a single associated SRI is configured/activated for a configured granted PUSCH transmission. During PUSCH transmission with configured grants, other portions of the panel not associated with the configured/indicated TPMI will not be used.
To address this problem, the applicant has proposed a solution to enhance multi-panel UL multiple-input multiple-output (MIMO) transmission with configured grants, filed as application PCT/CN2019/074829 entitled "DYNAMIC PHYSICAL UPLINK SHARED CHANNEL CONFIGURATION," which is hereby incorporated by reference in its entirety. For example, the Network (NW) may configure the UE with multiple SRIs and associated TPMIs and antenna ports during configured grant configuration/activation. The network may also configure a plurality of Redundancy Version (RV) indices, where each RV index corresponds to a configured TPMI and its associated SRI and antenna port. The UE may use each of the configured RV + TPMI + SRI + antenna ports to transmit PUSCH non-coherently using some portion of the panel, such that spatial diversity may be improved. Briefly, for PUSCH transmission based on a configured grant, the network may enable the UE to use an SPS configured RV + TPMI + SRI + antenna port combination for UL precoding.
The configured grant may be used for initial UL transmission. For example, the network may schedule a configured grant for the UE, and the UE may transmit data to the network using the scheduled PUSCH resources in the configured grant. However, in some instances, an error may occur during this initial UL transmission procedure (e.g., a HARQ process may be invoked). For example, the network (e.g., base station, gNB, gnnodeb, etc.) may not be able to fully decode the data transmitted by the UE. As another example, the UE may not hear the network's request for data and therefore not send data as the network expects. In such instances, the network schedules UL resources (PUSCH) for retransmission by the UE and notifies the UE through DCI.
For retransmissions, there are at least two cases to consider. In the first case (case a), the conditions for retransmission may be worse than the conditions for initial transmission. In case a, if the network schedules retransmissions, the UL resources scheduled for the retransmission may not be applicable to the RV + TPMI + SRI + antenna port combination that has been configured for initial transmission by SPS:
example a 1: the configured granted PUSCH resources may be used only by UEs performing UL transmission, while PUSCH resources for retransmission may also be used by both retransmission UEs and other UEs performing DL reception in a full duplex system (due to resource limitations). In this example, some portion of the SPS configured multiple SRI + TPMI + antenna port combinations may cause spatial disruption to the UE performing DL reception.
Example a 2: in PUSCH resources for retransmission, in UL MU-MIMO scenarios, some portion of the multiple SRI + TPMI + antenna port combinations of the SPS configuration may cause spatial interference to other UEs that are also performing UL transmissions. Such interference may not be present in the configured granted PUSCH resources.
Alternatively, in the second case (case B), the conditions for retransmission may be better than the conditions for initial transmission. In case B, due to interference/jamming limitations, the configured granted PUSCH resources may only be applicable for fewer SRI + TPMI + antenna port combinations (i.e., fewer panels transmitting simultaneously), while the retransmitted PUSCH resources may be applicable for more SRI + TPMI + antenna port combinations (i.e., more panels transmitting simultaneously). In this case, the SPS configured SRI + TPMI + antenna port combination for initial transmission may not be the best in terms of performance for retransmission.
Example B1: in contrast to example A1, resource usage may be restored.
Example B2: in contrast to example A2, resource usage may be restored.
To address such issues, it is proposed to implement dynamic open/close/switch of panels for retransmission (i.e., a combination of resource parameters) based on a multiple SRI solution. The resource parameters may be any one or more of resource related parameters such as RV, SRI, TPMI, antenna port, bandwidth part (BWP), etc. The following solutions are proposed:
in a first solution (solution 1), it is proposed to reuse existing Downlink Control Information (DCI) for retransmission scheduling. In existing DCI (e.g., release 15DCI), DCI scheduling PUSCH retransmission supports only an indication of one SRI and one associated TPMI. To overcome this limitation of existing DCI, new interpretation rules are proposed to enable dynamic indication of different SRI + TPMI + antenna port switching. The interpretation rules may be provided from the network to the UE during Radio Resource Configuration (RRC).
In the existing DCI, there is a limitation on SRI + TPMI + antenna port number. Thus, either case a or case B can be supported, but both cannot be supported simultaneously in the case of solution 1. This means that in solution 1, either case a or case B can be configured fixed. However, as explained further below, this limitation may be overcome.
In the second solution (solution 2), it is also proposed to reuse the existing Downlink Control Information (DCI). However, the combination of RV + SRI + TPMI + antenna ports indicated in the DCI may be understood as a selection of RRC configured RV + SRI + TPMI + antenna port combinations. In solution 2, the network may RRC configure multiple options for RV + SRI + TPMI + antenna port combinations and activate one of them for the configured grant PUSCH transmission. For retransmission, the alternative selection index may be indicated via DCI by commonly using the bits originally used for RV + SRI + TPMI + antenna port indication. In the case of solution 2, both case a and case B may be supported simultaneously.
In the third solution (solution 3), a new DCI format is proposed. If new DCI bits are allowed, both case a and case B may be supported simultaneously in a single DCI format without fixed case a or case B SPS configuration.
In the fourth solution (scheme 4), a plurality of bandwidth parts (BWPs) may be incorporated. The network may configure different panels to transmit PUSCH in different BWPs. This naturally leads to an extension that adds BWP in the combination of configurations. Thus, dynamic switching of BWP + RV + SRI + TPMI + antenna port combinations may be performed based on solutions 1, 2 and 3.
Each solution is described in more detail. In discussing each solution in detail, the phrase "resource combination" will be used to refer to a combination of resource parameters. That is, each resource combination may be a specific combination of resource-related parameters (such as RV, SRI, TPMI, antenna port, BWP, etc.).
With respect to solution 1, as mentioned above, it is proposed to reuse existing DCI (e.g., release 15DCI (format 0_1)) for retransmission. Solution 1 may be subdivided into solutions 1A and 1B (for solution a and case B, respectively). In solution 1A, UL resources (i.e., configured grants) may support the same or more SRIs than retransmission resources. During RRC configuration, the network may configure the UE to transmit using UL resources that allow multiple resource combinations (e.g., multiple SRI + TPMI + antenna port combinations) for initial transmission. The configured UL resources may be referred to as configured granted UL resources.
In other words, the network (e.g., a network node such as a base station) may send the RRC configuration to the UE. The RRC configuration may include a configuration of one or more resource combinations supported by the configured granted UL resources (e.g., PUSCH) for initial transmission of data from the UE to the network node. The configured granted UL resources may be semi-persistently scheduled. That is, the configured granted UL resources for initial transmission may be SPS UL resources. The configured grant UL resources may support the same or more resource combinations (e.g., the same or more SRI + TPMI + antenna port combinations) than the retransmission UL resources scheduled for retransmission in the DCI.
Further during RRC configuration, the network may configure interpretation rules to enable the UE to interpret the resource combination indication in the DCI. The following is a list of possible rules:
rule 1A-1: if the resource combination SRI + TPMI + antenna port indicated in the DCI is one of the resource combinations SRI + TPMI + antenna ports of the existing SPS configuration, the UE shall: (1) muting the resource combination indicated by the DCI in the retransmission, and (2) using some or all other (i.e., at least one) SPS-configured resource combination in the retransmission that includes transmitting the RV indicated in the DCI.
Rule 1A-2: if the resource combination SRI + TPMI + antenna port indicated in the DCI is one of the resource combinations SRI + TPMI + antenna ports of the existing SPS configuration or a new resource combination (not the resource combination SRI + TPMI + antenna port of any existing SPS configuration), the UE should: (1) use the DCI-indicated resource combination in a retransmission including transmitting the DCI-indicated RV, and (2) ignore all other SPS-configured resource combinations not indicated in the DCI for the retransmission.
Rule 1A-3: if the TPMI and/or antenna port indicated in the DCI uses the reserved ratio feature, the UE should use the SPS-configured resource combination SRI + TPMI + antenna port in the retransmission including the transmission of the RV indicated in the DCI. If there are multiple SPS configured resource combinations SRI + TPMI + antenna ports, one or more SPS configured resource combinations may be used in the retransmission.
In solution 1B, SPS UL resources may support the same or fewer SRIs than retransmission resources. During RRC configuration, the network may configure the UE to transmit using UL resources that allow one or more resource combinations (e.g., one or more SRI + TPMI + antenna port combinations) for initial transmission. Again, the configured UL resource may be an SPS UL resource. The configured UL resources may support the same or fewer resource combinations (e.g., the same or fewer SRI + TPMI + antenna port combinations) than the UL resources scheduled for retransmission in the DCI.
Further, during RRC configuration, the network may configure an interpretation rule to interpret the resource combination indication in the DCI. The following is a list of possible rules:
rule 1B-1: if the resource combination SRI + TPMI + antenna port indicated in the DCI is new (not any of the existing SPS configured resource combination SRI + TPMI + antenna ports), the UE should: (1) the resource combination indicated by the DCI is used in a retransmission including transmission of the RV indicated in the DCI, and (2) the resource combination of some or all (i.e., at least one) other SPS configurations is used in a retransmission including transmission of the RV indicated in the DCI.
Rule 1B-2: if the resource combination SRI + TPMI + antenna port indicated in the DCI is one of the resource combinations SRI + TPMI + antenna ports of the existing SPS configuration, the UE shall: (1) the resource combination indicated by the DCI is used in a retransmission including transmission of the RV indicated in the DCI, and (2) the resource combination of some or all (i.e., at least one) other SPS configurations is also used in a retransmission including transmission of the RV indicated in the DCI.
Rule 1B-3: if the TPMI and/or antenna port indicated in the DCI uses the reserved ratio feature, the UE should use the SPS-configured resource combination SRI + TPMI + antenna port in the retransmission including the transmission of the RV indicated in the DCI. If there are multiple SPS configured resource combinations SRI + TPMI + antenna ports, one or more SPS configured resource combinations may be used in the retransmission.
In solution 1A, the number of resource combinations for retransmission may be less than or equal to the number of resource combinations for original transmission. On the other hand, in solution 1B, the number of resource combinations for retransmission may be greater than or equal to the number of resource combinations for original transmission.
Solution 2 is similar to solution 1 in that existing DCI (e.g., release 15DCI (format 0_1)) is reused for retransmission. These two solutions differ in how to interpret the resource combinations indicated in the DCI. In solution 1, the way in which the parameters of the resource combination are interpreted is unchanged from the existing interpretation rules. That is, RV is still interpreted as RV, SRI is still interpreted as SRI, TMPI is still interpreted as TMPI, and so on.
But in solution 2, the resource combination indicated by the DCI may be interpreted as an index. During RRC configuration, the network may configure the UE with multiple choices of resource combinations (e.g., multiple choices of RV + SRI + TPMI + antenna port combinations), and each choice may include one or more resource combinations. It should be noted that some options may include more SRIs than others. Thus, both case a and case B may be supported simultaneously.
Further, during RRC configuration, the network may configure an interpretation rule to interpret the resource combination indication in the DCI. The following is a list of possible rules:
rule 2-1: the bits of any combination of SRI, TPMI, and antenna port indicated in the DCI are interpreted as a selection index to select one of the RRC configuration options of the SRI + TMPI + antenna port combination. The UE should use the resource combination of some or all SPS configurations corresponding to the selection index in the retransmission including the transmission of the RV indicated in the DCI.
Rule 2-2: the bits of the RV and any combination of SRI, TPMI and antenna port indicated in the DCI are interpreted as a selection index of one of the options to select the RRC configured RV + SRI + TMPI + antenna port combination. The UE should use some or all SPS configured resource combinations corresponding to the selection index in the retransmission.
Rule 2-3: if any one of the parameters (e.g., RV, SRI, TMPI, antenna port, BWP, etc.) of the resource combination indicated in the DCI uses the reservation ratio feature, the UE should interpret the resource combination indicated in the DCI under solution 1A and/or solution 1B. Different reserved bits may be used to specify between solution 1A and solution 1B.
It should be noted that any of RV, SRI, TMPI, antenna port, etc. may be excluded if bits of other parameters are sufficient.
Solution 3 differs from solutions 1 and 2 in that DCI with alternative formats is proposed. During RRC configuration, the network may configure the UE with any number of resource combinations (e.g., one or more RV + SRI + TPMI + antenna port combinations). However, in solution 3, the DCI may indicate any number of resource combinations. That is, the DCI may indicate one or more resource combinations (e.g., one or more RV + SRI + TPMI + antenna port combinations). The configured UL resources (e.g., configured SPS UL resources) may support fewer, more, or the same number of SRIs as compared to UL resources scheduled for retransmission in DCI.
Solution 3 may be subdivided into solutions 3A and 3B. In solution 3A, any of the indicated resource combinations may be ignored for retransmission if it uses reserved bits of the parameters (e.g. of the TPMI and/or antenna port). The UE may use some or all of the other resource combinations in the retransmission.
In solution 3B, the number of resource combinations supported in UL retransmission resources (e.g., the number of RV + SRI + TPMI + antenna port combinations) (denoted by N) may be indicated in DCI and/or configured during RRC configuration and/or pre-configured in the UE. In this example, if the number of resource combinations indicated in the DCI is N or greater, the UE may retransmit using N (e.g., the first N) of the indicated combinations and may ignore the remaining combinations. If the number of resource combinations indicated in the DCI is less than N, the UE may use all the indicated resource combinations.
Solution 4 can be viewed as an option extension of any of solutions 1, 2, and 3. In solution 4, during RRC configuration, the network may configure each resource combination to include a bandwidth part (BWP) indicator. That is, one or more resource combinations (e.g., one or more RV + SRI + TPMI + antenna port + BWP combinations) may be configured.
For retransmission scheduling, the interpretation rules of solutions 1, 2 and 3 may be modified to take into account the BWP indicated in the DCI. For example, in a solution 1 based approach (reusing existing DCI), the BWP indicated in the DCI may be considered in addition to the SRI + TPMI + antenna port in determining which resource or resources to use in the retransmission. In solution 2 based approaches (reusing existing DCI), BWP may be included in consideration of determining the selection index. In a solution 3 based approach (defining a new DCI format), multiple combinations of RV + SRI + TPMI + antenna port + BWP may be indicated in the DCI.
The following should be noted. If existing DCI is reused, it can be assumed for both solutions 1 and 2 that the resource allocation in DCI scheduling retransmissions can be applied to all scheduled BWPs. If a new DCI format is allowed, then for solution 3, different resource allocations may be indicated for different BWPs in the DCI scheduling the retransmission.
Fig. 3 illustrates an example method 300 performed by a UE and a network node (e.g., a base station such as a gNB, eNB) to communicate with each other. The UE may be a multi-panel UE. At block 305, the network node may send an RRC configuration to the UE, and at block 310, the UE may receive the RRC configuration (represented by the dashed arrow from block 305 to block 310).
Recall that during RRC configuration, the network may configure one or more resource combinations supported by UL resources for initial transmission of data from the UE to the network. That is, one or more of the panels of the UE may be configured for uplink transmissions. For ease of reference, the resource combination configured in the UE according to the RRC configuration will be referred to as an "initial" resource combination, and the UL resource (e.g., PUSCH) for initial transmission will be referred to as a "configured grant" UL resource. It can be said that the RRC configuration can include a configuration of one or more resource combinations supported by the configured granted UL resources for initial transmission of data from the UE to the network node. In an aspect, each initial resource combination may correspond to one of the panels of the UE.
Each initial resource combination may include any combination of resource parameters, such as any combination of SRI, TPMI, and antenna port. RV and/or BWP may also be included. In the RRC configuration, each initial resource combination may be different from each other initial resource combination. In an aspect, a first resource combination and a second resource combination may be considered different when a value of at least one resource parameter of the first resource combination is different from a value of the same at least one resource parameter of the second resource combination.
At block 315, the network node may send a schedule of the configured granted UL resources (e.g., PUSCH) to the UE, and at block 320, the UE may receive the schedule (represented by the dashed arrow from block 315 to block 320).
At block 330, the UE may send data to the network node on the configured granted UL resources using one or more initial resource combinations. In other words, the UE may transmit data on the configured granted UL resources via one or more panels corresponding to one or more initial resource combinations.
However, in this example, assume that an error for the initial UL transmission occurred (represented by an X passing through the dashed arrow from block 330 to block 335). For example, the network may receive the data at block 335 but not decode, or the network node may not receive the data at all due to severe interference.
At block 345, the network node may send DCI to the UE for retransmission of the data when there is an error in receiving the data from the UE. At block 350, the UE may receive DCI (represented by the dashed arrow from blocks 345 to 350). The DCI may include scheduling of UL resources for retransmission. For ease of reference, the UL resources (e.g., PUSCH) used for retransmission will be referred to as "retransmission" UL resources. Then it can be said that the DCI includes scheduling for retransmission of UL resources.
At block 360, the UE may determine one or more resource combinations for retransmission based on the interpretation rule and the DCI. For ease of reference, the resource combination determined by the UE for retransmission will be referred to as a "retransmission" resource combination. In an aspect, each retransmission resource combination may correspond to one of the panels of the UE.
At block 370, the UE may retransmit the data, and at block 375, the network may receive the retransmitted data (represented by the dashed arrow from block 370 to block 375). That is, the UE may use one or more retransmission resource combinations to transmit data on the retransmission UL resources, and the network node may receive data on the retransmission UL.
As indicated, the UE in block 360 may determine a retransmission resource combination for retransmitting the data. It may be desirable to reuse existing DCI (e.g., reuse release 15DCI) to maximize compatibility with existing technologies. In order to optimize uplink precoding, it is proposed to enhance how to interpret the information contained in the DCI to determine the retransmission resource combination.
Thus, in an aspect, the RRC configuration received from the network may also include one or more interpretation rules (e.g., any of the rules of solutions 1, 2, 3, and/or 4 described above) to be applied by the UE for retransmission of data to the network. In one aspect, the interpretation rule may specify: the UE determines a retransmission resource combination based on a comparison between information included in the DCI and an initial resource combination configured by the RRC configuration. This corresponds to solution 1 described above.
For example, the DCI may indicate a combination of SRI, TPMI, and antenna port. The interpretation rule may specify: determining a retransmission resource combination based on a comparison of the indicated SRI, TPMI, and antenna port parameters with the same parameters of the initial resource combination.
Unlike conventional techniques that ignore initial resource combinations completely, the proposed techniques allow the possibility of having retransmission resource combinations including at least some of the initial resource combinations. In other words, the initial resource combination may be reused. Another advantage is that the proposed technique allows the possibility of multiple panels for retransmission, unlike conventional techniques that use only one panel for retransmission. This in turn increases the likelihood that the retransmission will succeed.
In an aspect, the RV provided in the DCI may be included in the retransmission. That is, in an aspect, the selected panels (determined retransmission resource combinations) may all transmit the same RV included in the DCI.
When case a applies (i.e., when the configured granted UL resources support the same or more SRIs than the retransmitted UL resources), the interpretation rules may specify any one or more of rules 1A-1, 1A-2, and 1A-3 described above. Rule 1A-1 may be rephrased to indicate: when the combination of SRI, TPMI, and antenna port parameters indicated in the DCI matches the combination of SRI, TPMI, and antenna port of one of the initial resource combinations, the matching initial resource combination may be muted (i.e., not used), and all other initial resource combinations may be included in the retransmission resource combination. Again, a match indicates that the values of the parameters SRI, TPMI, and antenna port of the DCI match the values of the same parameters of the initial resource combination.
Rule 1A-2 may be rephrased to indicate: when the combination of SRI, TPMI, and antenna port indicated in the DCI does not match the combination of SRI, TPMI, and antenna port of any of the initial resource combinations, all of the initial resource combinations may be excluded from being included in the retransmission resource combinations. Rules 1A-3 may be rephrased to indicate: when one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI are used, all of the initial resource combinations may be included in the retransmission resource combination.
When case B applies (i.e., when the configured granted UL resources support the same or fewer SRIs than the retransmitted UL resources), the interpretation rules may specify any one or more of rules 1B-1, 1B-2, and 1B-3 described above. Rule 1B-1 may be rephrased to indicate: when the combination of the SRI, TPMI, and antenna port indicated in the DCI does not match any of the initial resource combinations of the SRI, TPMI, and antenna port combinations, at least one of the initial resource combinations and the combination of the SRI, TPMI, and antenna port indicated in the DCI may be included in the retransmission resource combination.
Rule 1B-2 may be rephrased to indicate: when the combination of SRI, TPMI, and antenna port indicated in the DCI matches the combination of SRI, TPMI, and antenna port of any of the initial resource combinations, the matched initial resource combination may be included in one or more retransmission resource combinations. If there are multiple initial resource combinations, at least one of the other initial resource combinations may also be included in the retransmission resource combination. Rule 1B-3 may be rephrased to indicate: when one or more reserved bits of any of the SRI, TPMI, and antenna port indicated in the DCI are used, all of the initial resource combinations may be included in the retransmission resource combination. If RV and/or BWP are included as parameters for a resource combination, each of rules 1A-1, 1A-2, 1A-3, 1B-1, 1B-2, and 1B-3 may be modified accordingly to account for RV and/or BWP.
In another aspect, the RRC configuration received from the network may include a configuration of multiple selections of initial resource combinations, where each selection includes one or more initial resource combinations supported by the configured granted UL resources (see solution 2 above). In this example, the interpretation rule may specify: interpreting any one or more of the SRI, TPMI, and antenna port indicated in the DCI as a selection index of one of a plurality of choices of selecting an initial resource combination, such that the initial resource combination corresponding to the selection index is included in the retransmission resource combination. Any of the bits of any of these parameters may be excluded if the remaining bits are sufficient for use as selection indices. The RV indicated in the DCI may be included in the retransmission using the selected retransmission resource combination.
Alternatively or in addition, the RV may also be used to interpret the selection index. That is, a rule may specify: the combination of RV and any one or more of SRI, TPMI and antenna port is interpreted as a selection index. If BWP is included, the interpretation of the selection index may be modified accordingly to account for BWP.
In another alternative or in addition, if any of the reserved bits of the resource parameters are used, the parameters indicated in the DCI may be interpreted according to any of rules 1A-1, 1A-2, 1A-3, 1B-1, 1B-2, and 1B-3. Indeed, some of the reserved bits may be used to indicate whether case a or case B applies, and the UE may apply the interpretation rules accordingly. For example, a set of one or more reserved bits (referred to as a "reserved bit set") of resource parameters (any one or more of SRI, TMPI, antenna port, RV, BWP, etc.) may be used to indicate whether a first retransmission condition (e.g., case a) or a second retransmission condition (e.g., case B) applies.
The interpretation rules 1A-1, 1A-2, 1A-3, 1B-1, 1B-2 and 1B-3 may be modified for both transmission conditions to exclude the reserved bit groups from the comparison. For example, modified rule 1A-1 may be expressed as indicating: when a combination of SRI, TPMI, and antenna port parameters (except for a reserved bit group) indicated in DCI matches a combination of SRI, TPMI, and antenna port of one of the initial resource combinations, the matching initial resource combination may be muted, and all other initial resource combinations may be included in the retransmission resource combination. As another example, modified rule 1B-3 may be expressed as indicating: when one or more reserved bits (except for the reserved bit group) of any of the SRI, TPMI, and antenna port indicated in the DCI are used, all of the initial resource combinations may be included in the retransmission resource combination. If RV and/or BWP are included as parameters of a resource combination, each of rules 1A-1, 1A-2, 1A-3, 1B-1, 1B-2, and 1B-3 may be further modified accordingly.
While the use of existing DCI is beneficial, the limitations of existing DCI are still recognized. Thus, in another aspect, a new DCI format is proposed (see solution 3 above). In the new DCI format, a plurality of resource combinations may be included. Then in the case of a new DCI, the implementation of block 360 becomes relatively simple. For example, DCI from a network may indicate multiple resource combinations. Then in block 360, the UE may include one or more of the plurality of resource combinations indicated in the DCI as retransmission resource combinations.
If any of the resource combinations indicated in the DCI uses any reserved bits of any of the resource parameters (e.g., the TPMI and/or reserved bits of the antenna ports), the resource combination may be ignored for retransmission. The UE may use some or all of the other resource combinations in the retransmission. In addition, if the retransmission UL resource supports a limited number N of resource combinations (N ≧ 1), the number of resource combinations indicated in the DCI can be included in the retransmission resource combination.
Fig. 4 shows an example user equipment device 400 represented as a series of related functional modules connected by a common bus. Each of the modules may be implemented in hardware or as a combination of hardware and software. For example, the modules may be implemented as any combination of the modules of the apparatus 202 of fig. 2. A module 410 for receiving an RRC configuration may correspond at least in some aspects to a communication device, such as communication device 208, and/or a processing system, such as processing system 232. The module for receiving a configured scheduling grant granting UL resources 420 may correspond at least in some aspects to a communication device, such as communication device 208, and/or a processing system, such as processing system 232. A module 430 for transmitting data on the configured granted UL resources may correspond at least in some aspects to a communication device, such as communication device 208, and/or a processing system, such as processing system 232. Module for receiving DCI 440 may correspond at least in some aspects to a communication device, such as communication device 208, and/or a processing system, such as processing system 232. A module for determining a transmission resource combination 450 may correspond at least in some aspects to a processing system, such as processing system 232. A module 460 for retransmitting data on the retransmission UL resources may correspond at least in some aspects to a communication device, such as communication device 208, and/or a processing system, such as processing system 232.
Fig. 5 shows an example network node apparatus 500 represented as a series of related functional modules connected by a common bus. Each of the modules may be implemented in hardware or as a combination of hardware and software. For example, the modules may be implemented as any combination of the modules of the apparatus 204 of fig. 2. A module for transmitting the RRC configuration 510 may correspond at least in some aspects to a communication device, such as communication device 214 and/or a processing system, such as processing system 234. The module for transmitting a configured scheduling grant of grant UL resources 520 may correspond at least in some aspects to a communication device, such as communication device 214, and/or a processing system, such as processing system 234. A module 530 for receiving data on the configured granted UL resources may correspond at least in some aspects to a communication device, such as communication device 214, and/or a processing system, such as processing system 234. A module 540 for transmitting DCI may correspond at least in some aspects to a communication device, such as communication device 214 and/or a processing system, such as processing system 234. A module 550 for receiving data on the retransmitted UL resources may correspond at least in some aspects to a communication device, such as communication device 214, and/or a processing system, such as processing system 234.
The functionality of the modules of fig. 4 and 5 may be implemented in a variety of ways consistent with the teachings herein. In some designs, the functionality of these modules may be implemented as one or more electronic components. In some designs, the functionality of these blocks may be implemented as a processing system that includes one or more processor components. In some designs, the functionality of these modules may be implemented using, for example, at least a portion of one or more integrated circuits (e.g., an ASIC). As discussed herein, an integrated circuit may include a processor, software, other related components, or some combination thereof. Thus, the functionality of different modules may be implemented, for example, as different subsets of an integrated circuit, as different subsets of a set of software modules, or as a combination thereof. Further, it will be appreciated that a given subset (e.g., of a set of integrated circuits and/or software modules) may provide at least a portion of the functionality for more than one module.
Additionally, the components and functions represented by fig. 4 and 5, as well as other components and functions described herein, may be implemented using any suitable means. Such units may also be implemented, at least in part, using corresponding structure as taught herein. For example, the components described above in connection with the "module for … …" component of fig. 4 and 5 may also correspond to the similarly designated "unit for … …" functionality. Thus, in some aspects, one or more of such units may be implemented using one or more of a processor component, an integrated circuit, or other suitable structure as taught herein.
Those of skill in the art would understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
Furthermore, those of skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the aspects disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on 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 present disclosure.
The various illustrative logical blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
The methods, sequences and/or algorithms described in connection with the aspects disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), flash memory, read-only memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal (e.g., UE). In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
In one or more exemplary aspects, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media may include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
While the foregoing disclosure shows illustrative aspects of the disclosure, it should be noted that various changes and modifications could be made herein without departing from the scope of the disclosure as defined by the appended claims. Furthermore, the functions, steps and/or actions of the method claims in accordance with the aspects of the disclosure described herein need not be performed in any particular order. Furthermore, although elements of the disclosure may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
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