YD/T 5070-2005.Acceptance Specification for Internet Engineering. 1总则 1.0.1YD/T 5070适用于基于IPv4公用计算机互联网新建工程的施工质量检验、随工检验和竣工验收。扩建工程、改建工程可参照执行。 1.0.2在施工过程中

YD/T 5076-2005.Design Specifications for PSTN Exchange Installation Engineering. 1总则 1.0.1为了加强对固定电话交换设备安装工程的技术管理,使安装工程设计工作有所依据,制定了本规范。本规范是在原YD 5076-19

YD/T 5077-2005.Accepting Specification for PSTN Exchange Installation Engineering. 1总则 1.0.1为了适应电话通信建设发展的需要,加强工程的技术管理,认真做好验收工作,保证工程质量,制定本规范。本规范是对YD 50

YD/T 1550.8-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I) Part 8:User Plane Protoc

YD/T 1550.7-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I) Part 7:Data Transmission

YD/T 1550.6-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I) Part 6:User Plane Protoc

YD/T 1550.5-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I} Part 5:Data Transport &a

YD/T 1550.4-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I) Part 4: NBAP. 1范围 YD/T 1

YD/T 1550.3-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I)  Part 3: Signaling

YD/T 1550.2-2007.Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network lub Interface (Phase I) Part 2: Layer 1. 1范围 YD/