ETSI TS 148 056-2017 数字蜂窝通信系统(第2+阶段)(GSM全球移动通信系统);基站控制器-基站收发信台(BSC-BTS)接口;第2层规范(V14.0.0;3GPP TS 48.056 版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+) (GSM); Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 2 specification (V14.0.0; 3GPP TS 48.056 version 14.0.0 Release 14)