CPC H04W 74/0833 (2013.01) [H04L 5/0048 (2013.01); H04W 72/0413 (2013.01)] | 20 Claims |
1. A user equipment (UE), the UE comprising:
a transceiver; and
a processor configured to:
receive, via the transceiver, random access channel (RACH) configuration information including CFRA-SSB-Resource information and msgA-PUSCH-Resource-CFRA information from a base station (BS), wherein the msgA-PUSCH-Resource-CFRA information includes at least one physical uplink shared channel (PUSCH) occasion, each PUSCH occasion is indexed, and wherein the CFRA-SSB-Resource information includes PUSCH occasion index information indicating an indexed PUSCH occasion,
in case that a type of a random access is identified as 2-step contention free random access (CFRA) based on the RACH configuration information, select a synchronization signal block (SSB) with synchronization signal-reference signal received power (SS-RSRP) above a configured threshold among SSBs,
identify a random access occasion corresponding to the selected SSB,
identify a PUSCH occasion from among the at least one PUSCH occasion configured in the msgA-PUSCH-Resource-CFRA information, according to the PUSCH occasion index information corresponding to the selected SSB, and
perform a message A transmission based on the identified random access occasion and the identified PUSCH occasion.
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