ETSI TS 133 203-2002 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).3G安全性.基于IP业务的接入安全.3GPP TS 33.203(版本5.3.0,第5次发布)
Digital Cellular Telecommunications System (Phase 2+); Universal Mobile Telecommunications System (UMTS); 3G Security; Access Security for IP-Based Services 3GPP TS 33.203 Version 5.3.0 Release 5