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  •  China "YD" Standards List:
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    YD/T 5254-2021 Mobile Internet of Things (NB-IoT) Engineering Specifications

    China Telecommunication Industry - YD Standards
    YD/T 5250-2021 Specification for construction supervision of mobile communication repeater project

    China Telecommunication Industry - YD Standards
    YD/T 5248-2021 Engineering technical specification for multifunctional steel towers for micro communication base stations

    China Telecommunication Industry - YD Standards
    YD/T 5247-2021 Specification for Construction Supervision of Broadband IP Metropolitan Area Network Engineering

    China Telecommunication Industry - YD Standards
    YD/T 5246-2021 Design specification for broadband trunking communication based on LTE technology

    China Telecommunication Industry - YD Standards
    YD/T 5196.1-2021 Seismic Performance Testing Specification for Server and Gateway Equipment Part 1: Server Equipment

    China Telecommunication Industry - YD Standards
    YD/T 5185-2021 IP Multimedia Subsystem (IMS) Engineering Design Specification

    China Telecommunication Industry - YD Standards
    YD/T 5181-2021 Broadband IP Metropolitan Area Network Engineering Acceptance Specification

    China Telecommunication Industry - YD Standards
    YD/T 5163-2021 Engineering technical specification for telecom operation customer service call center

    China Telecommunication Industry - YD Standards
    YD/T 5159-2021 Specification for acceptance of mobile multimedia message center project

    China Telecommunication Industry - YD Standards
    YD/T 5142-2021 Technical Specification for Intelligent Network Engineering

    China Telecommunication Industry - YD Standards
    YD/T 5132-2021 Code for acceptance of mobile communication steel tower mast structure engineering

    China Telecommunication Industry - YD Standards
    YD/T 5123-2021 Specification for construction supervision of communication line engineering

    China Telecommunication Industry - YD Standards
    YD/T 5073-2021 Specification for construction supervision of special telecommunications housing projects

    China Telecommunication Industry - YD Standards
    YD/T 3864-2021 1447MHz¡«1467MHz frequency band broadband digital trunking system base station equipment RF test method

    China Telecommunication Industry - YD Standards
    YD/T 3863-2021 Video cloud service platform technical requirements

    China Telecommunication Industry - YD Standards
    YD/T 3862-2021 2GHz TD-SCDMA digital cellular mobile communication network Smart antenna integrated blind insertion interface (BMA) technical requirements and test methods

    China Telecommunication Industry - YD Standards
    YD/T 3861-2021 LTE digital cellular mobile communication network - Technical requirements for dedicated core network (DCN) equipment

    China Telecommunication Industry - YD Standards
    YD/T 3860-2021 LTE digital cellular mobile communication network enhanced machine type communication (eMTC) core network equipment test method

    China Telecommunication Industry - YD Standards
    YD/T 3859-2021 LTE digital cellular mobile communication network Enhanced machine type communication (eMTC) core network equipment technical requirements

    China Telecommunication Industry - YD Standards
    YD/T 1968-2021 Intelligent heat exchange system for communication bureau station

    China Telecommunication Industry - YD Standards
    YD/T 3420.6-2021 Broadband Customer Gateway Virtualization Based on Public Telecommunication Network Part 6: Technical Requirements for Virtual Enterprise Gateway Function

    China Telecommunication Industry - YD Standards
    YD/T 3420.4-2021 Virtualization of Broadband Customer Gateway Based on Public Telecommunication Network Part 4: Technical Requirements for Physical Enterprise Gateway

    China Telecommunication Industry - YD Standards
    YD/T 2896.6-2021 Intelligent Optical Distribution Network Interface Technical Requirements Part 6: Interface between Intelligent Management APP and Intelligent Portable Tools

    China Telecommunication Industry - YD Standards
    YD/T 3726.5-2021 Packet Transport Network (PTN) Network Management Technical Requirements for Group Customer Access Part 5: EMS-NMS Interface Information Model Based on IDL/IIOP Technology

    China Telecommunication Industry - YD Standards
    YD/T 3857-2021 Interface Test Method of Broadband Trunking Communication (B-TrunC) System (Second Stage) Based on LTE Technology Trunking Core Network to Dispatching Console Interface

    China Telecommunication Industry - YD Standards
    YD/T 3856-2021 Interface test method of broadband trunking communication (B-TrunC) system (second stage) based on LTE technology Trunking core network interface

    China Telecommunication Industry - YD Standards
    YD/T 3855-2021 Interface Test Method for Broadband Trunking Communication (B-TrunC) System (Second Stage) Based on LTE Technology Air Interface

    China Telecommunication Industry - YD Standards
    YD/T 3854-2021 Interface Technical Requirements for Broadband Trunking Communication (B-TrunC) System (Phase II) Based on LTE Technology Trunking Core Network to Dispatching Console Interface

    China Telecommunication Industry - YD Standards
    YD/T 3853-2021 Interface Technical Requirements for Broadband Trunking Communication (B-TrunC) System (Phase 2) Based on LTE Technology Trunking core network interface

    China Telecommunication Industry - YD Standards

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