Power control parameter in unified TCI
A base station and a UE may use a unified TCI to indicate a power control parameter for a plurality of UL channels. The base station may receive the UE's capability to support the unified TCI power control parameter, and configure the at least one power control parameter associated with at least one of a first component associated with the TCI state and a plurality of second component associated with the plurality of uplink channels.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
a memory; and
at least one processor coupled to the memory, the at least one processor and the memory being configured to:
transmit, to a base station, an indication of a UE capability associated with at least one power control parameter;
receive, from the base station, an indication of a configuration of at least one of a first component of the at least one power control parameter associated with a first transmission configuration indicator (TCI) state or a plurality of second components of the at least one power control parameter associated with one of a plurality of uplink channels, the first component corresponding to each of the plurality of channels associated with the first TCI state; and
apply, to one of the plurality of uplink channels, an uplink transmission power setting associated with at least one of the first component of the at least one power control parameter or the plurality of second components of the at least one power control parameter;
wherein the at least one power control parameter corresponds to at least one power control parameter setting.
2 . The apparatus of claim 1 , wherein the plurality of second components corresponds to the first TCI state or at least one other TCI state.
3 . The apparatus of claim 1 , wherein to receive the indication of the configuration, the at least one processor and the memory are further configured to:
receive the indication of the configuration of the first component of the at least one power control parameter as a part of a TCI state update.
4 . The apparatus of claim 3 , wherein the TCI state update is received via a medium access control (MAC) control element (CE) (MAC-CE).
5 . The apparatus of claim 1 , wherein to receive the indication of the configuration, the at least one processor and the memory are further configured to:
receive the indication of the configuration of the plurality of second components of the at least one power control parameter as a part of uplink channel configurations of the plurality of uplink channels.
6 . The apparatus of claim 5 , wherein the uplink channel configurations of the plurality of uplink channels are received via a radio resource control (RRC) message.
7 . The apparatus of claim 1 , wherein the at least one of the first component of the at least one power control parameter or the plurality of second components of the at least one power control parameter is configured based on the indication of the UE capability received from the UE.
8 . The apparatus of claim 1 , wherein a first power control parameter of the at least one power control parameter is associated with the plurality of uplink channels associated with the first TCI state, and a first transmission power setting associated with the first power control parameter is applied to the plurality of uplink channels.
9 . The apparatus of claim 1 , wherein a first power control parameter of the at least one power control parameter is associated with a first uplink channel of the plurality of uplink channels associated with the first TCI state, and a first transmission power setting associated with the first power control parameter is applied to a second uplink channel of the plurality of uplink channels, wherein the second uplink channel is not associated with a power control parameter from the base station.
10 . The apparatus of claim 1 , wherein a first power control parameter of the at least one power control parameter is associated with a first uplink channel of the plurality of uplink channels, and a second power control parameter of the at least one power control parameter is associated with a second uplink channel of the plurality of uplink channels,
wherein a first transmission power setting associated with the first power control parameter is applied to the first uplink channel and a second transmission power setting associated with the second power control parameter is applied to the second uplink channel.
11 . The apparatus of claim 10 , wherein the first transmission power setting associated with the first power control parameter is applied to a third uplink channel of the plurality of uplink channels, wherein the third uplink channel is not associated with a power control parameter from the base station.
12 . The apparatus of claim 1 , wherein the at least one power control parameter is associated with the plurality of uplink channels based on a mapping order.
13 . A method of wireless communication at a user equipment (UE), comprising:
transmitting, to a base station, an indication of a UE capability associated with at least one power control parameter;
receiving, from the base station, an indication of a configuration of at least one of a first component of the at least one power control parameter associated with a first transmission configuration indicator (TCI) state or a plurality of second components of the at least one power control parameter associated with one of a plurality of uplink channels, the first component corresponding to each of the plurality of channels associated with the first TCI state; and
applying, to one of the plurality of uplink channels, an uplink transmission power setting associated with at least one of the first component of the at least one power control parameter or the plurality of second components of the at least one power control parameter;
wherein the receiving the indication of the configuration comprises:
receiving the indication of the configuration of the first component of the at least one power control parameter as a part of a TCI state update; or
receiving the indication of the configuration of the plurality of second components of the at least one power control parameter as a part of uplink channel configurations of the plurality of uplink channels.
14 . An apparatus for wireless communication at a base station, comprising:
a memory; and
at least one processor coupled to the memory, the at least one processor and the memory being configured to:
receive, from a user equipment (UE), an indication of a UE capability associated with at least one power control parameter;
configure at least one of a first component of the at least one power control parameter associated with a first transmission configuration indicator (TCI) state or a plurality of second components of the at least one power control parameter associated with one of a plurality of uplink channels, the first component corresponding to each of the plurality of uplink channels associated with the first TCI state; and
transmit, to the UE, an indication of the configuration of at least one of the first component of the at least one power control parameter associated with the first TCI state or the plurality of second components of the at least one power control parameter associated with the one of the plurality of uplink channels;
wherein the plurality of second components corresponds to the first TCI state or at least one other TCI state.
15 . The apparatus of claim 14 , further comprising a transceiver coupled to the at least one processor,
wherein the at least one power control parameter corresponds to at least one power control parameter setting.
16 . The apparatus of claim 14 , wherein to transmit the indication of the configuration, the at least one processor and the memory are further configured to:
transmit the indication of the configuration of the first component of the at least one power control parameter as a part of a TCI state update.
17 . The apparatus of claim 16 , wherein the TCI state update is transmitted via a medium access control (MAC) control element (CE) (MAC-CE).
18 . The apparatus of claim 14 , wherein to transmit the indication of the configuration, the at least one processor and the memory are further configured to:
transmit the indication of the configuration of the plurality of second components of the at least one power control parameter as a part of uplink channel configurations of the plurality of uplink channels.
19 . The apparatus of claim 18 , wherein the uplink channel configurations of the plurality of uplink channels are transmitted via a radio resource control (RRC) message.
20 . The apparatus of claim 14 , wherein the at least one of the first component of the at least one power control parameter or the plurality of second components of the at least one power control parameter is configured based on the indication of the UE capability received from the UE.
21 . The apparatus of claim 14 , wherein a first power control parameter of the at least one power control parameter is associated with the plurality of uplink channels associated with the first TCI state.
22 . The apparatus of claim 14 , wherein a first power control parameter of the at least one power control parameter is associated with a first uplink channel of the plurality of uplink channels associated with the first TCI state, and a first transmission power setting associated with the first power control parameter is applicable to a second uplink channel of the plurality of uplink channels, wherein the second uplink channel is not associated with a power control parameter from the base station.
23 . The apparatus of claim 14 , wherein a first power control parameter of the at least one power control parameter is associated with a first uplink channel of the plurality of uplink channels, and a second power control parameter of the at least one power control parameter is associated with a second uplink channel of the plurality of uplink channels.
24 . The apparatus of claim 23 , wherein a first transmission power setting associated with the first power control parameter is applicable to a third uplink channel of the plurality of uplink channels, wherein the third uplink channel is not associated with a power control parameter from the base station.
25 . The apparatus of claim 14 , wherein the at least one power control parameter is associated with the plurality of uplink channels based on a mapping order.
26 . A method of wireless communication at a base station, comprising:
receiving, from a user equipment (UE), an indication of a UE capability associated with at least one power control parameter;
configuring at least one of a first component of the at least one power control parameter associated with a first transmission configuration indicator (TCI) state or a plurality of second components of the at least one power control parameter associated with one of a plurality of uplink channels, the first component corresponding to each of the plurality of uplink channels associated with the first TCI state; and
transmitting, to the UE, an indication of the configuration of at least one of the first component of the at least one power control parameter associated with the first TCI state or the plurality of second components of the at least one power control parameter associated with the one of the plurality of uplink channels;
wherein the transmitting the indication of the configuration comprises:
transmitting the indication of the configuration of the first component of the at least one power control parameter as a part of a TCI state update; or
transmitting the indication of the configuration of the plurality of second components of the at least one power control parameter as a part of uplink channel configurations of the plurality of uplink channels.