Terminal, radio communication method, and base station
A terminal according to one aspect of the present disclosure includes a control section that, when transmission of a Power Headroom Report (PHR) Medium Access Control (MAC) control element in a certain serving cell and Physical Uplink Shared Channel (PUSCH) repetition transmission using a plurality of sounding reference signal resource indicators (SRIs) in another serving cell temporally overlap, determines one or two PHRs regarding the other serving cell to be included in the PHR MAC control element, and a transmitting section that transmits the PHR MAC control element. According to one aspect of the present disclosure, the PHR report when MTRP PUSCH repetition is used can be appropriately performed.
1 . A terminal comprising:
a receiver that receives a higher layer parameter indicating enabling of a first power headroom report (PHR) corresponding to a first transmission/reception point (TRP) and a second PHR corresponding to a second TRP, and downlink control information (DCI);
a processor that, when a physical uplink shared channel (PUSCH) transmission to the first TRP and the second TRP is not indicated by the DCI, calculates the first PHR based on a first reference PUSCH transmission for the first TRP, and calculates the second PHR based on a second reference PUSCH transmission for the second TRP; and
a transmitter that transmits a medium access control (MAC) control element including a field indicating the first PHR and a field indicating the second PHR.
2 . The terminal according to claim 1 , wherein a plurality of default power control parameters for calculating the first PHR are different from a plurality of default power control parameters for calculating the second PHR.
3 . A radio communication method for a terminal, comprising:
receiving a higher layer parameter indicating enabling of a first power headroom report (PHR) corresponding to a first transmission/reception point (TRP) and a second PHR corresponding to a second TRP, and downlink control information (DCI);
when a physical uplink shared channel (PUSCH) transmission to the first TRP and the second TRP is not indicated by the DCI, calculating the first PHR based on a first reference PUSCH transmission for the first TRP, and calculating the second PHR based on a second reference PUSCH transmission for the second TRP; and
transmitting a medium access control (MAC) control element including a field indicating the first PHR and a field indicating the second PHR.
4 . A base station comprising:
a transmitter that transmits a higher layer parameter indicating enabling of a first power headroom report (PHR) corresponding to a first transmission/reception point (TRP) and a second PHR corresponding to a second TRP, and downlink control information (DCI);
a processor that, when the DCI does not indicate a physical uplink shared channel (PUSCH) transmission to the first TRP and the second TRP, determines that a terminal calculates the first PHR based on a first reference PUSCH transmission for the first TRP, and calculates the second PHR based on a second reference PUSCH transmission for the second TRP; and
a receiver that receives a medium access control (MAC) control element including a field indicating the first PHR and a field indicating the second PHR.
5 . A system comprising a terminal and a base station, wherein the terminal comprises:
a receiver that receives a higher layer parameter indicating enabling of a first power headroom report (PHR) corresponding to a first transmission/reception point (TRP) and a second PHR corresponding to a second TRP, and downlink control information (DCI);
a processor that, when a physical uplink shared channel (PUSCH) transmission to the first TRP and the second TRP is not indicated by the DCI, calculates the first PHR based on a first reference PUSCH transmission for the first TRP, and calculates the second PHR based on a second reference PUSCH transmission for the second TRP; and
a transmitter that transmits a medium access control (MAC) control element including a field indicating the first PHR and a field indicating the second PHR, and
the base station comprises:
a receiver that receives the MAC control element.