METHOD FOR IMPLEMENTING ACCESS STRATUM SECURITY, USER EQUIPMENT, AND SMALL RADIO ACCESS NETWORK NODE

摘要

A method for implementing access stratum security, comprising: executing end-to-end user plane access stratum security between a UE and a gateway node; and, when the UE is present only in a micro communication path, executing end-to-end control plane access stratum security between the UE and an initial access node; or, when the UE is present in the micro communication path and a macro communication path, executing end-to-end control plane access stratum security between the UE and a macro eNB in the macro communication path, where the micro communication path is a communication path through which the UE accesses a small radio access network node via a radio access link to access ultimately a core network, and the macro communication path is a communication path through which the UE accesses a macro eNB via a radio access link to access ultimately the core network. The method greatly ensures user plane security, reduces delay in control plane security operation under the premise of ensured control plane security, at the same time, increases the mobile performance of the UE, and ensures the continuity of user plane data transmission for the UE.