Terminal, radio communication method, and base station
A terminal according to one aspect of the present disclosure includes: a control section that determines two values of a power control parameter when physical uplink control channel (PUCCH) spatial relation information is not provided; and a transmitting section that transmits a PUCCH by using at least one of the two values of the power control parameter and one or more transmission occasions. The two values are associated with two respective indices. The two indices are either two index values of a control resource set (CORESET) pool index or two index values of a transmission configuration indication (TCI) state associated with one codepoint of a field in downlink control information. According to one aspect of the present disclosure, a power control parameter can be appropriately determined.
1 . A terminal comprising:
a processor that, when physical uplink control channel (PUCCH) spatial relation information is not provided, determines values of a first power control parameter and a second power control parameter, the first power control parameter and the second power control parameter being applied to PUCCH repetitions for multiple transmission/reception points (TRPs); and
a transmitter that performs the PUCCH repetitions using the values of the first power control parameter and the second power control parameter and one or more transmission occasions,
wherein whether the PUCCH repetitions using a certain PUCCH resource are associated with a first TRP, a second TRP, or both the first TRP and the second TRP, of the multiple TRPs is configured for each PUCCH resource including the certain PUCCH resource, and
wherein the transmitter reports a UE capability indicating support of the first power control parameter and the second power control parameter, the first power control parameter and the second power control parameter being applied to the PUCCH repetitions.
2 . The terminal according to claim 1 , wherein each of the first power control parameter and the second power control parameter is at least one of P0 for PUCCH, a PUCCH pathloss reference signal and a closed loop index.
3 . The terminal according to claim 1 , wherein the processor applies cyclic mapping or sequential mapping to mapping of the PUCCH repetitions and the values of the first power control parameter and the second power control parameter.
4 . The terminal according to claim 1 , wherein when a number of the PUCCH repetitions is 4 and a number of the multiple TRPs is 2, the processor employs mapping of applying a value of the first power control parameter to first and third PUCCH repetitions for the first TRP and applying a value of the second power control parameter to second and fourth PUCCH repetitions for the second TRP, or mapping of applying the value of the first power control parameter to the first and second PUCCH repetitions for the first TRP and applying the value of the second power control parameter to the third and fourth PUCCH repetitions for the second TRP.
5 . A radio communication method for a terminal, comprising:
when physical uplink control channel (PUCCH) spatial relation information is not provided, determining values of a first power control parameter and a second power control parameter, the first power control parameter and the second power control parameter being applied to PUCCH repetitions for multiple transmission/reception points (TRPs); and
performing the PUCCH repetitions using the values of the first power control parameter and the second power control parameter and one or more transmission occasions,
wherein whether the PUCCH repetitions using a certain PUCCH resource are associated with a first TRP, a second TRP, or both the first TRP and the second TRP, of the multiple TRPs is configured for each PUCCH resource including the certain PUCCH resource, and
wherein the terminal reports a UE capability indicating support of the first power control parameter and the second power control parameter, the first power control parameter and the second power control parameter being applied to the PUCCH repetitions.
6 . A base station comprising:
a processor that, when physical uplink control channel (PUCCH) spatial relation information is not provided to a terminal, determines values of a first power control parameter and a second power control parameter, the first power control parameter and the second power control parameter being applied to PUCCH repetitions for multiple transmission/reception points (TRPs); and
a receiver that receives the PUCCH repetitions that are performed using the values of the first power control parameter and the second power control parameter and one or more transmission occasions,
wherein whether the PUCCH repetitions using a certain PUCCH resource are associated with a first TRP, a second TRP, or both the first TRP and the second TRP, of the multiple TRPs is configured for each PUCCH resource including the certain PUCCH resource, and
wherein the receiver receives, from the terminal, a UE capability indicating support of the first power control parameter and the second power control parameter, the first power control parameter and the second power control parameter being applied to the PUCCH repetitions.
7 . A system comprising: a terminal; and a base station, wherein
the terminal comprises:
a processor that, when physical uplink control channel (PUCCH) spatial relation information is not provided, determines values of a first power control parameter and a second power control parameter, the first power control parameter and the second power control parameter being applied to PUCCH repetitions for multiple transmission/reception points (TRPs); and
a transmitter that performs the PUCCH repetitions using the values of the first power control parameter and the second power control parameter and one or more transmission occasions,
wherein the transmitter reports a UE capability indicating support of the first power control parameter and the second power control parameter, the first power control parameter and the second power control parameter being applied to the PUCCH repetitions, and
the base station comprises:
a processor that, when the PUCCH spatial relation information is not provided to the terminal, determines the values of the first power control parameter and the second power control parameter; and
a receiver that receives the PUCCH repetitions that are performed using the values of the first power control parameter and the second power control parameter and the one or more transmission occasions,
wherein the receiver receives, from the terminal, the UE capability, and
wherein whether the PUCCH repetitions using a certain PUCCH resource are associated with a first TRP, a second TRP, or both the first TRP and the second TRP, of the multiple TRPs is configured for each PUCCH resource including the certain PUCCH resource.