SECURITY PROTECTION METHOD, BASE STATION AND RELAY SYSTEM FOR RELAY SWITCHING

摘要

Provided is a security protection method for relay switching, including: a relay switching source donor base station receiving from a target donor base station a security protection switch state that the target donor base station is a data radio bearer (DRB) determined by a relay ; and the source donor base station issuing to the relay the security protection switch state that the target donor base station is a DRB determined by the relay so that the relay performs security protection on the communication between itself and the target donor base station according to the security protection switch state of the DRB received. Also provided is another security protection method for relay switching and two relay systems and two base stations. The embodiments of the present invention realize the synchronization of the DRB security protection state information between the target donor base station and the relay.