CPC H04W 24/10 (2013.01) [H04W 68/06 (2013.01); H04W 88/06 (2013.01)] | 20 Claims |
1. A method performed by a terminal in a communication system, the method comprising:
receiving a radio resource control (RRC) message including configuration information associated with a medium access control (MAC) control element (CE) for beam failure recovery;
detecting beam failure based on a quality of a signal associated with the beam failure being lower than a first threshold; and
based on the beam failure being detected in a first cell:
based on a configuration of a physical uplink control channel (PUCCH) for transmitting a scheduling request (SR) for requesting uplink resources being not provided for the terminal:
transmitting a first random access preamble;
receiving a first random access response associated with the first random access preamble; and
transmitting the MAC CE for the beam failure recovery for the first cell based on the configuration information and the first random access response; and
based on the configuration of the PUCCH being provided for the terminal:
transmitting, based on the configuration of the PUCCH, the SR;
receiving scheduling information for the uplink resources requested by the SR; and
transmitting, on the uplink resources, the MAC CE for the beam failure recovery for first cell.
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