ETSI TS 144 006-2001 数字蜂窝通信系统(第2+阶段).移动台-基站系统(MS - BSS)接口.数据链路(DL)层规范.3GPP TS 44.006(版本4.0.0,第4次发布)
Digital Cellular Telecommunications System (Phase 2+); Mobile Station - Base Station System (MS - BSS) Interface; Data Link (DL) Layer Specification 3GPP TS 44.006 Version 4.0.0 Release 4