Technical Requirements of Roaming from 3G to 2G Network and from 3G to 3G Network Managed by Different Operators Part 1：Roaming from TD-SCDMA to GSM/GPRS Network and Roaming from TD-SCDMA to TD-SCDMA Network YD/T 1979.1-2009

Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Standard Insuued on: 2009-12

YD/T 1979.1-2009 Technical Requirements of Roaming from 3G to 2G Network and from 3G to 3G Network Managed by Different Operators Part 1：Roaming from TD-SCDMA to GSM/GPRS Network and Roaming from TD-SCDMA to TD-SCDMA Network

不同运营商间3G到2G网络、3G到3G网络漫游技术要求第1部分：TD-SCDMA到GSM/GPRS

Category No.:	YD	Valid Status:	abolished
Issued Organization:	Ministry of Industry and Information Technology	Issued Date:	2009-12-11
Implemented Date:	2010-1-1	Abolished Date:	2017-05-12
Superseded Standard.:		Superseded Date:

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DB11/T 672-2009 DB11/T 665-2009 DB37/T 1417-2009 DB11/T 691-2009 DB42/T 584-2009 DB65/T 3041-2009 DB37/T 1406-2009 DB37/T 1422-2009 DB31/T 470-2009 DB37/T 1412-2009 DB37/T 1442-2009 DB52/T 588-2009 DB21/T 1775-2009 DB11/T 679-2009 DB11/T 1000.1-2009 DB11/T 684-2009 DB37/T 1418-2009 NB/T 47003.1-2009 DB61/T 481-2009 DB37/T 1449-2009

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