Dynamically updating configuration of a sounding reference signal resource set
Aspects relate to mechanisms for wireless communication devices to signal for dynamically updating the configuration of a sound reference signal (SRS) resource set. A user equipment (UE) receives from a base station, via at least one of a downlink control information (DCI) or a medium access control (MAC) control element (MAC-CE), a configuration of one or more sounding reference signal (SRS) resource sets for SRS transmission. The UE also receives an indication of an update of one or more parameters, via at least one of the DCI or the MAC-CE, for at least one SRS resource set of the one or more SRS resource sets. The UE further applies the update to at least one SRS transmission.
1. A method for wireless communication by a user equipment (UE), comprising:
receiving from a base station, via at least one of a downlink control information (DCI) or a medium access control (MAC) control element (MAC-CE), a configuration of one or more sounding reference signal (SRS) resource sets for SRS transmission;
receiving an indication of an update of one or more parameters, via at least one of the DCI or the MAC-CE, for at least one SRS resource set of the one or more SRS resource sets; and
applying the update to at least one SRS transmission,
wherein the update is applied to the at least one SRS transmission after a time period that is based on whether the indication of the update is conveyed in the DCI or the MAC-CE.
2. The method of claim 1 , wherein the one or more parameters comprise a non-zero power (NZP) channel state information reference signal (NZP CSI-RS) identification (NZP CSI-RS ID) associated with the at least one SRS resource set.
3. The method of claim 2 , wherein the at least one SRS resource set comprises a resource type of one of aperiodic (AP), semi-persistent (SP), or periodic (P) for a non-codebook physical uplink shared channel (PUSCH) transmission.
4. The method of claim 1 , wherein the time period is a function of a frame numerology of at least one of a physical downlink control channel (PDCCH) carrying the DCI, a physical downlink shared channel (PDSCH) carrying the MAC-CE, or the at least one SRS resource set.
5. The method of claim 1 , wherein the time period is a function of a decoding capability of the UE.
6. The method of claim 5 , further comprising:
transmitting an indication of the decoding capability of the UE to the base station.
7. A user equipment (UE) for wireless communication in a wireless communication system, comprising:
a wireless transceiver;
a memory; and
a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor and the memory are configured to:
receive from a base station, via at least one of a downlink control information (DCI) or a medium access control (MAC) control element (MAC-CE), a configuration of one or more sounding reference signal (SRS) resource sets for SRS transmission,
receive an indication of an update of one or more parameters, via at least one of the DCI or the MAC-CE, for at least one SRS resource set of the one or more SRS resource sets, and
apply the update to at least one SRS transmission,
wherein the update is applied to the at least one SRS transmission after a time period that is based on whether the indication of the update is conveyed in the DCI or the MAC-CE.
8. The UE of claim 7 , wherein the one or more parameters comprise a non-zero power (NZP) channel state information reference signal (NZP CSI-RS) identification (NZP CSI-RS ID) associated with the at least one SRS resource set.
9. The UE of claim 8 , wherein the at least one SRS resource set comprises a resource type of one of aperiodic (AP), semi-persistent (SP), or periodic (P) for a non-codebook physical uplink shared channel (PUSCH) transmission.
10. The UE of claim 7 , wherein the time period is a function of a frame numerology of at least one of a physical downlink control channel (PDCCH) carrying the DCI, a physical downlink shared channel (PDSCH) carrying the MAC-CE, or the at least one SRS resource set.
11. The UE of claim 7 , wherein the time period is a function of a decoding capability of the UE.
12. The UE of claim 11 , wherein the processor and the memory are further configured to:
transmit an indication of the decoding capability of the UE to the base station.
13. A method for wireless communication by a base station, comprising:
transmitting to a user equipment (UE), via at least one of a downlink control information (DCI) or a medium access control (MAC) control element (MAC-CE), a configuration of one or more sounding reference signal (SRS) resource sets for SRS transmission;
transmitting, to the UE, an indication of an update of one or more parameters, via at least one of the DCI or the MAC-CE, for at least one SRS resource set of the one or more SRS resource sets; and
receiving one or more SRS transmissions from the UE in accordance with the update,
wherein the update is applied to at least one SRS transmission of the one or more SRS transmissions after a time period that is based on whether the indication of the update is conveyed in the DCI or the MAC-CE.
14. The method of claim 13 , wherein the one or more parameters comprise a non-zero power (NZP) channel state information reference signal (NZP CSI-RS) identification (NZP CSI-RS ID) associated with the at least one SRS resource set.
15. The method of claim 14 , wherein the at least one SRS resource set comprises a resource type of one of aperiodic (AP), semi-persistent (SP), or periodic (P) for a non-codebook physical uplink shared channel (PUSCH) transmission.
16. The method of claim 13 , wherein the time period is a function of a frame numerology of at least one of a physical downlink control channel (PDCCH) carrying the DCI, a physical downlink shared channel (PDSCH) carrying the MAC-CE, or the at least one SRS resource set.
17. The method of claim 13 , wherein the time period is a function of a decoding capability of the UE.
18. The method of claim 17 , further comprising:
receiving, from the UE, a signal indicating the decoding capability of the UE.
19. A base station for wireless communication in a wireless communication network, comprising:
a wireless transceiver;
a memory; and
a processor communicatively coupled to the wireless transceiver and the memory, wherein the processor and the memory are configured to:
transmit to a user equipment (UE), via at least one of a downlink control information (DCI) or a medium access control (MAC) control element (MAC-CE), a configuration of one or more sounding reference signal (SRS) resource sets for SRS transmission,
transmit, to the UE, an indication of an update of one or more parameters, via at least one of the DCI or the MAC-CE, for at least one SRS resource set of the one or more SRS resource sets, and
receive one or more SRS transmissions from the UE in accordance with the update,
wherein the update is applied to at least one SRS transmission of the one or more SRS transmissions after a time period that is based on whether the indication of the update is conveyed in the DCI or the MAC-CE.
20. The base station of claim 19 , wherein the one or more parameters comprise a non-zero power (NZP) channel state information reference signal (NZP CSI-RS) identification (NZP CSI-RS ID) associated with the at least one SRS resource set.
21. The base station of claim 20 , wherein the at least one SRS resource set comprises a resource type of one of aperiodic (AP), semi-persistent (SP), or periodic (P) for a non-codebook physical uplink shared channel (PUSCH) transmission.
22. The base station of claim 19 , wherein the time period is a function of a frame numerology of at least one of a physical downlink control channel (PDCCH) carrying the DCI, a physical downlink shared channel (PDSCH) carrying the MAC-CE, or the at least one SRS resource set.
23. The base station of claim 19 , wherein the time period is a function of a decoding capability of the UE.
24. The base station of claim 23 , wherein the processor and the memory are configured to:
receive, from the UE, a signal indicating the decoding capability of the UE.