Multi-link transmit power control for a plurality of uplink beam pairs
Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands. The plurality of TPC commands may relate to an uplink channel transmit power for a plurality of uplink beam-pairs. The wireless communication device may determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands. Numerous other aspects are provided.
1. A method of wireless communications, comprising:
receiving, by a wireless communication device, one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands,
the plurality of TPC commands relating to an uplink channel transmit power for a plurality of uplink beam-pairs,
a first TPC command, of the plurality of TPC commands, corresponding to a first type of channel, and
a second TPC command, of the plurality of TPC commands, corresponding to a second type of channel; and
determining, by the wireless communication device, the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands.
2. The method of claim 1 , wherein data is transmitted on the plurality of uplink beam-pairs using the uplink channel transmit power.
3. The method of claim 1 , wherein each of the plurality of uplink beam-pairs is associated with a corresponding TPC command of the plurality of TPC commands.
4. The method of claim 1 , wherein the one or more DCI transmissions include the plurality of TPC commands in a sequence corresponding to a sequence of link indices.
5. The method of claim 1 , wherein the plurality of uplink beam-pairs are associated with a single base station.
6. The method of claim 1 , wherein the plurality of uplink beam-pairs are associated with multiple base stations.
7. The method of claim 1 , wherein each of the plurality of TPC commands is associated with a corresponding cell identifier and information identifying a corresponding uplink beam-pair.
8. The method of claim 1 , wherein uplink channel transmit powers for two or more of the plurality of uplink beam-pairs are determined based at least in part on a single TPC command of the plurality of TPC commands.
9. The method of claim 1 , wherein a transmit power level for the uplink channel transmit power is determined based at least in part on a power control step-size.
10. The method of claim 1 , wherein a first uplink beam-pair, of the plurality of uplink beam-pairs, is associated with a first power control step-size and a second uplink beam-pair, of the plurality of uplink beam-pairs, is associated with a second power control step-size,
the second power control step-size being different from the first power control step-size.
11. The method of claim 1 , wherein the plurality of TPC commands are received via a unicast transmission.
12. The method of claim 1 , wherein the plurality of TPC commands are received via a multicast transmission.
13. The method of claim 12 , wherein the plurality of TPC commands are for a plurality of wireless communication devices.
14. The method of claim 12 , wherein at least one TPC command, of the plurality of TPC commands, is extracted by the wireless communication device from the multicast transmission.
15. The method of claim 12 , wherein the multicast transmission does not include a set of padding bits,
a quantity of TPC bits of the multicast transmission being associated with a quantity of TPC commands of the plurality of TPC commands.
16. The method of claim 12 , wherein the multicast transmission includes a set of padding bits,
the set of padding bits including information associated with the plurality of TPC commands.
17. The method of claim 16 , wherein the set of padding bits is set to a static value.
18. The method of claim 12 , wherein the uplink channel transmit power for the plurality of uplink beam-pairs is determined based at least in part on a mapping of bits of the multicast transmission to uplink beam-pairs of the plurality of uplink beam-pairs.
19. The method of claim 1 , wherein the plurality of uplink beam-pairs are associated with a plurality of types of channels,
the plurality of types of channels including at least one of:
a physical uplink control channel (PUCCH),
a physical uplink shared channel (PUSCH),
a sounding reference signal (SRS) channel,
a scheduling request (SR) channel, or
a beam recovery (BR) indicator channel.
20. The method of claim 19 ,
wherein the first type of channel is one of the plurality of types of channels; and
wherein the second type of channel is another one of the plurality of types of channels.
21. A wireless communication device for wireless communication, comprising:
memory; and
one or more processors coupled to the memory, the memory and the one or more processors configured to:
receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands,
the plurality of TPC commands relating to an uplink channel transmit power for a plurality of uplink beam-pairs,
a first TPC command, of the plurality of TPC commands, corresponding to a first type of channel, and
a second TPC command, of the plurality of TPC commands, corresponding to a second type of channel; and
determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands.
22. The wireless communication device of claim 21 , wherein data is transmitted on the plurality of uplink beam-pairs using the uplink channel transmit power.
23. The wireless communication device of claim 21 , wherein each of the plurality of uplink beam-pairs is associated with a corresponding TPC command of the plurality of TPC commands.
24. The wireless communication device of claim 21 , wherein the plurality of TPC commands are received via a multicast transmission.
25. A non-transitory computer-readable medium storing instructions for wireless communication, the instructions comprising:
one or more instructions that, when executed by one or more processors of a wireless communication device, cause the one or more processors to:
receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands,
the plurality of TPC commands relating to an uplink channel transmit power for a plurality of uplink beam-pairs,
a first TPC command, of the plurality of TPC commands, corresponding to a first type of channel, and
a second TPC command, of the plurality of TPC commands, corresponding to a second type of channel; and
determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands.
26. The non-transitory computer-readable medium of claim 25 , wherein data is transmitted on the plurality of uplink beam-pairs using the uplink channel transmit power.
27. The non-transitory computer-readable medium of claim 25 , wherein each of the plurality of uplink beam-pairs is associated with a corresponding TPC command of the plurality of TPC commands.
28. The non-transitory computer-readable medium of claim 25 , wherein the plurality of TPC commands are received via a multicast transmission.
29. An apparatus for wireless communications, comprising:
means for receiving one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands,
the plurality of TPC commands relating to an uplink channel transmit power for a plurality of uplink beam-pairs,
a first TPC command, of the plurality of TPC commands, corresponding to a first type of channel, and
a second TPC command, of the plurality of TPC commands, corresponding to a second type of channel; and
means for determining the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands.
30. The apparatus of claim 29 , wherein data is transmitted on the plurality of uplink beam-pairs using the uplink channel transmit power.