YD/T 1992-2009.Test specifications for SDH-based multi-service transport platform(MSTP)-Interoperability. .1范围 YD/T 1992规定了基于同步数字体系(SDH)的多业务传送节点(MSTP)

YD/T 1991-2009.Technical requirements for NX 40Gbit/s optical wavelength division multiplexing (WDM) systems. 1范围 YD/T 1991规定了单通路速率为40 Gbit/s密集波分复用(DW

YD/T 1990-2009.General technical requirements for Optical Transport Network. 1范围 YD/T 1990规定了基于ITU-T G.872定义的光传送网(OTN) 总体技术要求。主要内容包括: OTN网络功能结构、接口要求、复

YD/T 1989-2009.Test method for air interface of 1800MHz SCDMA broadband wireless access system. 1范围 YD/T 1989规定了基于1800MHz SCDMA宽带无线接入系统空中接口技术的宽带无线接入系统

YD/T 1987-2009.Testing methods for Cx/Dx/Sh interfaces in IMS system of mobile communication network. 1范围 YD/T 1987规定了移动通信网IMS系统中Cx/Dx/Sh接口的测试说明、Cx接口功

YD/T 1986-2009.Technical requirements for Cx/Dx/Sh interfaces in IMS system of mobile communication network. 1范围 YD/T 1986规定了移动通信网IMS系统中Cx/Dx/Sh接口的定义、

YD/T 1985-2009.Testing methods for IMS system equipments of mobile telecommunication network. 1范围 YD/T 1985规定了移动通信网IMS系统内的主要实体的测试方法,包括HSS、CSCF、MRFC、MG

YD/T 1984-2009.Technical requirements for IMS system equipments in mobile communication network. 1范围 YD/T 1984规定了移动通信网IMS系统内的主要实体，包括HSS/SLF、CSCF、MRFC、

YD/T 1983-2009.Test method for ISC/Ma interface in IMS system in mobile communication network. 1范围 YD/T 1983规定了移动通信网ISC接口的第三方注册/注销、用户注册状态信息订阅/通知、会话建立和

YD/T 1982-2009.Technical requirements for ISC/Ma interface in IMS system in mobile communication network. 1范围 YD/T 1982规定了移动通信网IMS系统中ISCMa接口的定义，ISCMa接

YD/T 1981-2009.Testing methods for Mg/Mi/Mj/Mk/Mw/Gm interface in IMS system in mobile communication network. 1范围 YD/T 1981规定了移动通信网IMS系统的接口测试方法，包括MgMi

YD/T 1980-2009.Technical requirements for Mg/Mi/Mij/Mk/Mw/Gm interface in IMS system in mobile communication network. 1范围 YD/T 1980规定了移动通信网IMS系统中M系列接口