YD通讯标准

YD/T 1779-2008.Testing Methods of TD-SCDMA/GSM(GPRS) Dual Mode Digital Mobile User Equipment.1范围YD/T 1779规定了TD-SCDMA/GSM (GPRS) 双模单待机数字移动通信终端设备...

YD/T 1830-2008.Technical Requirements of Base Station Subsystem (BSS) for the CDMA-based Digital Trunking Mobile Communication System.1范围YD/T 1830规定了基于CDMA技术的数字...

YD/T 1562-2013.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunication network equipment high rate packet data (Phase I) - Access terminal.1范围Y...

YD/T 1560-2010.Testing method in 800MHz/2GHz cdma2000 digital cellular mobile communication network:A3/A7 interface.1范围YD/T 1560规定了800MHz/2GHz cdma2000数字蜂窝移动通信...

YD/T 1522.5-2010.Technical requirements for session initiation protocol Part 5 session initiation protocol based on the unified IMS.1范围YD/T 1522.5规定了SIP协议在统一MS网络...

YD/T 1522.4-2009.Technical Requirements for Session Initiation Protocol Part 4 SIP's Applications about call control Based on Softswitch Network.1范围YD/T 1522.4规定了软交换网...

YD/T 1447-2013.Plastic optical fibre for communication.1范围YD/T 1447规定了通信用塑料光纤(以下简称光纤)的产品分类、要求、试验方法、检验规则、标志...

YD/T 1595.1-2012.Requirements and measurement methods of electromagnetic compatibility for 2GHz WCDMA digital cellular mobile telecommunications system Part 1: user equipment and an...

YD/T 1588.4-2010.Measurement methods for characteristics of optical fibre cable line Part 4: Chromatic dispersion for optical filbre cable links.1范围YD/T 1588的YD/T 1588.4规定了...

YD/T 1578-2010.Technical requirements for high rate packet data(HRPD) a interfaces ( phase I ) in 800MHz/2GHz cdma2000 digital cellular mobile communication network.1范围YD/T 1578规...