ETSI TS 132 215-2001 全球移动通信系统(UMTS).3G通信管理.计费管理.分组交换(PS)域的计费数据描述.3GPP TS 32.215(版本4.0.0,第4次发布)
Universal Mobile Telecommunications System (UMTS); 3G Telecom Management; Charging Management; Charging Data Description for the Packet Switched (PS) Domain 3GPP TS 32.215 Version 4.0.0 Release 4