MOBILE COMMUNICATION METHOD, RELAY NODE, AND RADIO BASE STATION

摘要

The present invention relates to a mobile communication method of sending and receiving the signaling of an S1AP/X2AP layer on DRB established between a radio base station DeNB and a relay node RN, the method comprising a step of generating a key KS1X2-int for performing integrity protection in the above DRB, in an SMC (security mode command) process performed in an attach process of the relay node RN.