Patent ID: 11917563
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of obtaining, by a user equipment (UE), time information about a synchronization signal/physical broadcast channel (SS/PBCH) block in an unlicensed band, the method comprising:
receiving SS/PBCH blocks in a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a specific slot;
obtaining the time information about the SS/PBCH block based on sequences of PBCH demodulation reference signals (DMRSs),
establishing a connection with a cell selected based on the SS/PBCH blocks;
after the establishing the connection, monitoring a physical downlink control channel (PDCCH) during on duration based on a configured DRX operation; and
starting an inactivity timer and staying awake based on the successfully received PDCCH during the on duration;
wherein mapping of indices of the SS/PBCH blocks to the indices of the sequences of the PBCH DMRSs is cyclically configured based on a number of the indices of the SS/PBCH blocks.