ETSI TS 152 021-2017 数字蜂窝通信系统(第2+阶段);A-双频接口上的网络管理(NM)程序和信息(V14.0.0;3GPP TS 52.021,版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+); Network Management (NM) procedures and messages on the A-bis interface (V14.0.0; 3GPP TS 52.021 version 14.0.0 Release 14)