Patent ID: 11924025
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A user equipment (UE) performing beam failure detection in a wireless communication system, the UE comprising:
a transceiver for transmitting and receiving radio signals, and
a processor functionally connected to the transceiver,
wherein the processor is configured to:
control the transceiver to receive a reference signal (RS) from a base station,
determine whether a beam has failed based on a block error rate (BLER) calculated by performing measurement on the reference signal, and
control the transceiver to transmit, to the base station, a result of the determination of whether the beam has failed,
wherein determining whether the beam has failed includes:
distinguish between i) a case where the base station does not transmit the reference signal and ii) a case where quality of the reference signal transmitted by the base station does not satisfy a specific threshold range, and
determining that the beam has failed only in the case ii),
wherein a first threshold for determining the case i) where the base station does not transmit the reference signal and a second threshold for determining the case ii) where the quality of the reference signal transmitted by the base station are separately set.