ETSI GSM 08.58-1993 欧洲数字蜂窝通信系统(第2阶段).基站控制器(BSC)-基站收发器(BTS)接口第3层规范(ETS 300 596)
European Digital Cellular Telecommunication System (Phase 2); Base Station Controller (BSC) to Base Transceiver Station (BTS) Interface Layer 3 Specification (ETS 300 596)