EFFICIENT SECURITY-RELATED PROCESSING

摘要

An efficient security related procedure is disclosed. A plurality of service data units (SDUs) having the same priority is multiplexed to one unit signal. The unit signal is ciphered using a mask generated by a first parameter combination. The receiver simultaneously deciphers the multiplexed service data units (SDUs), such that a Layer-2 (L2) processing time is efficiently reduced and the problems encountered by signals vulnerable to security can be efficiently solved.