Patent ID: 11895707
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A base station in a wireless communication system, the base station comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to:
transmit, to a terminal, first information on first uplink resources for a first message of a 2-step random access procedure, second information on second uplink resources for the first message of the 2-step random access procedure, third information on a threshold size to determine the first uplink resources or the second uplink resources for the first message of the 2-step random access procedure, and fourth information on a reference signal received power (RSRP) threshold for selection between the 2-step random access procedure and a 4-step random access procedure, and
receive, from the terminal, the first message of the 2-step random access procedure using a resource,

wherein the 2-step random access procedure is selected based on an RSRP for downlink being above the RSRP threshold,
wherein, in case that a size of information included in the first message of the 2-step random access procedure is greater than the threshold size, the resource is identified from the first uplink resources, and
wherein, in case that the size of the information included in the first message of the 2-step random access procedure is not greater than the threshold size, the resource is identified from the second uplink resources.