ETSI EN 300 945-1999 数字蜂窝通信系统(第2+阶段).移动台-基站系统(MS-BSS)接口的速率适配.GSM 04.21(版本6.0.1,1997年发布)
Digital Cellular Telecommunications System (Phase 2+); Rate Adaption on the Mobile Station-Base Station System (MS-BSS) Interface (GSM 04.21 Version 7.0.3 Release 1998)