Patent ID: 11881987
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A terminal in a communication system, comprising:
a processor,
wherein the processor causes the terminal to:
search for a plurality of candidate beams when a beam failure is detected;
transmit a beam failure recovery request signal to a base station using a beam #1 among the plurality of candidate beams;
receive from the base station a beam failure recovery response signal including an uplink (UL) grant through the beam #1; and
when a beam failure recovery procedure for the beam #1 is succeed, perform a multi-beam configuration procedure using the beam #1 which is a beam recovered by the beam failure recovery procedure,
wherein, when the multi-beam configuration procedure is performed, the processor causes the terminal to:
transmit to the base station multi-beam configuration information including index(es) of one or more beams excluding the beam #1 among the plurality of candidate beams, by using a resource indicated by the UL grant and the beam #1.