Patent ID: 11871290
Assignee: NTT DOCOMO, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A system comprising a terminal and a base station, wherein
the terminal comprises:
a processor that controls beam failure recovery based on whether or not a certain secondary cell for an uplink control channel is configured; and
a transmitter that transmits a beam failure recovery request to one of a plurality of cells in the beam failure recovery,
wherein the processor determines a maximum number of secondary cells to which the beam failure recovery is applied, based on a transmitted type among a plurality of types of the beam failure recovery request, and
wherein the processor controls the beam failure recovery based on the maximum number of secondary cells to which the beam failure recovery is applied, and

the base station comprises:
a processor that determines whether or not the certain secondary cell is configured; and
a receiver that receives the beam failure recovery request.