ETSI TS 123 271-2005 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).定位业务(LCS)的第2阶段功能描述.3GPP TS 23.271(版本6.13.0,第6次发布)
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Functional stage 2 description of Location Services (LCS) 3GPP TS 23.271 version 6.13.0 Release 6