ITU-T Q.1741.2-2002
带有UTRAN接入网的GSM演进到UMTS核心网版本4的IMT-2000参考
IMT-2000 references to release 4 of GSM evolved UMTS core network with UTRAN access network SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for IMT-2000 Study Group SSG