Patent ID: 8717985

Claim:
A method for generating a group identifier of a random access response message, comprising: determining the group identifier according to a serial number Sn of a subframe in which a random access time slot of a random access preamble message transmitted by a terminal locates and a serial number m of a random access channel in which the random access time slot locates; wherein the group identifier is determined according to the following formula: group Identifier=RA-RNTI-COUNT+Sn%N+m×N, where RA-RNTI-COUNT is a constant set by a system, N is a constant which is 2, 5 or 10, or N is determined according to a length of a time window for receiving the random access response message by a terminal, and N is 5 when the length of the time window is equal to or less than 5, otherwise N is 10.