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  •  China "YD" Standards List:
    • Standard  Code Standard English Title Standard Class Order
    YD/T 4167.1-2022 5G Mobile Network Packet Data Service Charging System Charging Performance Technical Requirements and Test Methods Part 1: NSA Architecture

    China Telecommunication Industry - YD Standards
    YD/T 4166-2022 Internet routing registration and verification Internet routing registration data specification

    China Telecommunication Industry - YD Standards
    YD/T 4165-2022 5G network voice service interconnection technical requirements

    China Telecommunication Industry - YD Standards
    YD/T 4164-2022 Work coordination mechanism among interconnection and number portability transfer enterprises and inter-network problem handling requirements

    China Telecommunication Industry - YD Standards
    YD/T 4163-2022 Technical requirements for non-basic telecom operators to support number portability

    China Telecommunication Industry - YD Standards
    YD/T 4162-2022 Technical requirements for number portability network supervision interface

    China Telecommunication Industry - YD Standards
    YD/T 4161-2022 User interface and program requirements for number portability service

    China Telecommunication Industry - YD Standards
    YD/T 4160-2022 Technical Requirements for Acceptance System of Number Portability Transfer Service

    China Telecommunication Industry - YD Standards
    YD/T 4159-2022 Technical requirements for local service management system for number portability transfer

    China Telecommunication Industry - YD Standards
    YD/T 4158-2022 Technical Requirements for Network Interworking of Number Portability

    China Telecommunication Industry - YD Standards
    YD/T 4157-2022 Technical requirements and test methods for voice recognition function of vehicle communication terminal

    China Telecommunication Industry - YD Standards
    YD/T 2308-2022 Transmission performance requirements and test methods for vehicle-mounted narrowband voice communication equipment

    China Telecommunication Industry - YD Standards
    YD/T 1884-2022 Information terminal equipment sound pressure output limit requirements and measurement methods

    China Telecommunication Industry - YD Standards
    YD/T 4154-2022 Maintenance Technical Requirements for Spray Type Liquid Cooling System of Communication Bureau (Station)

    China Telecommunication Industry - YD Standards
    YD/T 4153.2-2022 Composite indirect evaporative cooling type temperature control equipment for communication room Part 2: Cooling air type

    China Telecommunication Industry - YD Standards
    YD/T 4153.1-2022 Composite indirect evaporative cooling type temperature control equipment for communication room - Part 1: Chilled water type

    China Telecommunication Industry - YD Standards
    YD/T 4152-2022 Low-temperature valve-regulated lead-acid battery for communication

    China Telecommunication Industry - YD Standards
    YD/T 4151-2022 Small integrated AC and DC uninterruptible power supply

    China Telecommunication Industry - YD Standards
    YD/T 4150-2022 Signaling technical requirements for caller ID display service based on ISUP protocol

    China Telecommunication Industry - YD Standards
    YD/T 4149-2022 Service technical requirements based on Unified IMS (Phase 2) One-number multi-terminal service

    China Telecommunication Industry - YD Standards
    YD/T 4148-2022 Unified IMS network (second stage) and CDMA network short message signaling interworking test method

    China Telecommunication Industry - YD Standards
    YD/T 4147-2022 SDN forwarding function using OpenFlow protocol conformance test method

    China Telecommunication Industry - YD Standards
    YD/T 4146-2022 IP layer technical requirements in FDN-based backbone network IP layer and optical layer collaboration

    China Telecommunication Industry - YD Standards
    YD/T 4145-2022 Reconfigurable Data Network Control Layer and Forwarding Layer Interface

    China Telecommunication Industry - YD Standards
    YD/T 4144-2022 Reconfigurable Data Network Network Functional Description

    China Telecommunication Industry - YD Standards
    YD/T 4143-2022 Reconfigurable Data Network Overall Architecture

    China Telecommunication Industry - YD Standards
    YD/T 4142-2022 Test method for network aggregation and distribution equipment

    China Telecommunication Industry - YD Standards
    YD/T 4141-2022 Technical requirements for network aggregation and distribution equipment

    China Telecommunication Industry - YD Standards
    YD/T 1141-2022 Ethernet Switch Test Method

    China Telecommunication Industry - YD Standards
    YD/T 4140-2022 Test method for mobile terminal location information transmission in emergency

    China Telecommunication Industry - YD Standards

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