YDB 009-2007.The technical specification and measuring method for 5 millimeter wave wireless communi...
YDB 002-2006 位置服务中移动终端的 WAP 接口技术要求
YDB 002-2006.Technical requirements of WAP Interface for Mobile Terminal in Location Service. 1范围 YD...
YDB 003-2006 移动终端与位置服务(LCS)门户接口技术要求
YDB 003-2006.Technical requirements of Interface between Mobile Terminate and LCS Portal. 1范围 YDB 00...
YDB 004-2007 下一代网络(NGN)业务总体技术要求
YDB 004-2007.The General Technical Requirements of Next Generation Network (NGN) Service. 1范围 YDB 00...
YDB 005-2007 下一代网络(NGN)中 IP 多媒体业务技术要求
YDB 005-2007.Technical Requirements for IP multimedia services in NGN. 1范围 YDB 005报告规定了下一代网络(NGN)中IP...
YDB 006-2007 下一代网络(NGN)中 PSTN/ISDN 仿真业务技术要求
YDB 006-2007.Technical Requirements for PSTN/ISDN Emulation Services in NGN. 1范围 YDB 006报告规定了下一-代网络中...
YDB 001-2006 智能虛交换(V-SWITCH)总体技术要求
YDB 001-2006.The Specifications of intelligent V-switch. 1范围 YDB 001报告规定了智能虚交换在系统架构、应用模型、信令过程、接口协议、服...
YD 5060-1998 通信设备安装抗震设计图集
YD 5060-1998.Drawings for Designing Anti-seismic Installation of Communication Equipment. 第一册终端复用通信设...
YD 5033-1997 会议电视系统工程验收规范
YD 5033-1997.Code for Acceptance of Videoconference System Engineering. 1总则 1.0.1YD 5033是会议电视系统设备安装工...
YD 5032-1997 会议电视系统工程设计规范
YD 5032-1997.Code for Design of Videoconference System Engineering. 1总则 1.0.1为了适应经济建设高速发展和改革开放的社会需求,...
312