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Database: 189759 (26 Oct 2025)
YD/T 4188-2023 English PDF
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Standard Title (Description)
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YD/T 4188-2023
English
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(Technical requirements for voice service interconnection based on WLAN access to LTE network)
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YD/T 4188-2023
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Basic data
Standard ID
YD/T 4188-2023 (YD/T4188-2023)
Description (Translated English)
(Technical requirements for voice service interconnection based on WLAN access to LTE network)
Sector / Industry
Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard
M36
Classification of International Standard
33.060
Date of Issue
2023-04-21
Date of Implementation
2023-08-01
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the technical requirements for voice service interoperability of S2b-based untrusted WLAN access to EPC networks, including interoperability network architecture, technical requirements for each network element, interoperability technical requirements, etc. The 2G/3G cellular networks in this standard include GSM/TD-SCDMA, GSM/WCDMA and cdma2000 networks. LTE cellular networks include TD-LTE and LTE FDD networks.
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