CPC H04W 36/0055 (2013.01) [H04W 74/0833 (2013.01)] | 20 Claims |
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a first base station, a radio resource control (RRC) message for reconfiguration with sync, the RRC message including first information indicating a dedicated resource for 2-step random access and second information indicating a modulation and coding scheme (MCS) for a physical uplink shared channel (PUSCH) of a message A (MsgA) for the 2-step random access, wherein the first information includes information associated with a random access preamble of the MsgA and information associated with a resource of the PUSCH of the MsgA;
transmitting, to a second base station, the random access preamble of the MsgA on a physical random access channel (PRACH) based on the information associated with a random access preamble of the MsgA;
transmitting, to the second base station, a payload of the MsgA on the resource of the PUSCH based on the information associated with a resource of the PUSCH of the MsgA and the second information; and
receiving, from the second base station, message B (MsgB) as a response to the MsgA.
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