Patent ID: 11956827
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
detect a beam failure on a serving cell,
identify a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS) with a reference signal received power (RSRP) above a threshold, and
in case that the serving cell is a secondary cell (SCell), transmit, to a base station, a media access control (MAC) control element (CE) for a beam failure recovery,

wherein the MAC CE for the beam failure recovery is identified by a logical channel identifier (LCID) in a MAC subheader, and
wherein the MAC CE for the beam failure recovery includes a field Ci set to 1 indicating that the beam failure is detected on the SCell with an index i, and information on the identified SSB or the identified CSI-RS.