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Std ID Description (Standard Title)
YDC 069-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network High Rate Packet Data (HRPD) device testing method: an access terminal (second stage))
YDC 070-2008 800MHz CDMA1X Digital Cellular Mobile Communication Networks: High Rate Packet Data (HRPD) Air Interface Specification (Phaseâ…¡)
YDC 071-2008 Technical Requirements for 800MHz CDMA 1X Digital Cellular Mobile Communications Network BCMCS Equipment - Access Network (AN)
YDC 072-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service Equipment Technical Requirements: Core Network)
YDC 073-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service Equipment Test Method: Core Network)
YDC 074-2008 Technical Requirements for 800MHz CDMA 1X Digital Cellular Mobile Communications Network BCMCS Equipment - Access Terminal (AT)
YDC 075-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service A interface requirements)
YDC 076-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service A interface test methods)
YDC 077-2008 (800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network Broadcast Multicast Service air interface technology requirements)
YDC 078-2008 Technical Requirements for Push-to-chat (PoC) Service based on TD-SCDMA Digital Cellular Mobile Communications Network
YDC 084-2010 No. 7 signaling network based on IP bearer network technology requirements
YDC 085-2010 Mobile terminal open platform and application security framework
YDC 086-2010 Telecommunication lines and equipment against lightning discharge protection measures
YDJ 11-1987 Specification for installation design of long-distance manual telephone exchange equipment
YDJ 1-1989 Specification for installation design of posts and communications power supply equipment
YDJ 13-1988 Temporary technical regulations for engineering design of optical fiber digital transmission system of urban local telephone network
YDJ 14-1991 (Telecommunication trunk cable digital transmission system line engineering Interim technical requirements)
YDJ 15-1987 Specification for installation design of public telegraph and facsimile communication equipment
YDJ 20-1988 Temporary Technical Regulation for Installation Design of Computerized Telephone Exchange Equipment
YDJ 22-1987 Temporary technical regulations for engineering design of domestic satellite communication earth stations
YDJ 26-1989 (Communication Bureau (station) Interim technical grounding design requirements (Building section))
YDJ 31-1983 Technical specifications for Installation engineering construction and acceptance of communication power supply equipment
YDJ 35-1981 Technical specifications for Installation engineering construction and acceptance of long-distance communication open-wire carrier telephone equipment
YDJ 36-1985 Technical specifications for engineering construction and acceptance of long-distance communication open-wire lines
YDJ 37-1981 Technical specifications for Installation engineering construction and acceptance of urban local telephone exchange equipment
YDJ 38-1985 Technical specifications for engineering construction and acceptance of urban local telephone lines
YDJ 39-1990 (Communication pipeline construction and acceptance of technical specifications)
YDJ 40-1984 Technical specifications for engineering construction and acceptance of radio short-wave communications
YDJ 41-1986 Technical specifications for Installation engineering construction and acceptance of long-distance communication telephone exchange equipment
YDJ 44-1989 Temporary Technical Specifications for Engineering Construction and Acceptance of Telecommunication Network Optical Fiber Digital Transmission System
YDJ 50-1988 Technical specifications for Installation engineering construction and acceptance of urban local telephone SPC exchange equipment
YDJ 5-1985 Specification for installation design of long-distance communications carrier telephone equipment
YDJ 61-1990 Temporary Technical Specifications for Engineering Design of Urban Post and Telecommunication Suboffice
YDJ 6-1984 Specification for engineering design of long-distance communication open-wire lines
YDJ 7-1984 Specification for installation design of crossbar system urban local telephone exchange equipment
YDJ 8-1985 Specification for engineering design of urban local telephone lines
YDJ 9-1990 Specification for engineering design of urban local communication full-plastic cables lines
YDN 001-1996 Technical Requirements for 160 Telephone Message Service (Tentative Specifications)
YDN 002-1996 (SDH digital cross-connect equipment (SDXC) Technical Requirements (Temporary Provisions))
YDN 003-1996 (Fiber amplifier technology requirements)
YDN 004-1996 (Postal business window electronic system specification (Trial))
YDN 005-1996 Access Network General View
YDN 006-1996 Technical Requirements for Centralized Management System of Automatic Telephone Charging Equipment (Tentative Specifications)
YDN 008-1996 Technical Requirements for Inquiry System of General Contractor and Vouchered Postal Material
YDN 009-1996 (Frame Relay network technology system)
YDN 010-1996 (Chinese Industry Standard)
YDN 010-1998 Technical conditions for automatic monitoring system of optical cable lines (internal standard)
YDN 011-1996 Business Technology System of Public Electronic Data Interchange (EDI) of China
YDN 012-1996 Technical requirements for flat mail sorting equipment (temporary provisions)
YDN 013-1996 (Postal financial computer network management technology requirements (Temporary Provisions))
YDN 014-1996 (China postal financial computer network communication protocol TCP/IP (Interim..)
YDN 015-1996 (Post debit card - Magnetic Stripe Card Savings)
YDN 016-1996 Interface Requirements for MSC and PSTN of 900 MHz TDMA Digital Cellular Telecommunication Network
YDN 017-1996 (High-speed wireless paging network technology system (Temporary Provisions))
YDN 018-1996 (High-speed wireless paging system air interface (Temporary Provisions))
YDN 019-1996 (High-speed radio paging system user interface (Temporary Provisions))
YDN 020-1996 (Interface Specification V5. 1 local digital switches and access network (internal standard))
YDN 021-1996 (Interface Specification V5. 2 local digital switches and access network (internal standard))
YDN 022.1-1996 Signalling Test Specifications for Mobile Application Part of 900 MHz TDMA Digital Cellular Telecommunication Network
YDN 023-1996 (Communication power supply and air conditioning centralized monitoring system technical requirements (Temporary Provisions) (internal standard))
YDN 024-1997 (Access network technology requirements for fixed wireless access)
YDN 025-1997 Signalling Test Specifications for Interfaces between Mobile Services Switching Centre and Base Station of 900 MHz TDMA Digital Cellular Telecommunication Network
YDN 026-1997 Technical Requirements for SDH Transmission Network - Input Business and Maintainability Limit Value of SDH Digital Channel and Reuse Section
YDN 027-1997 Technical Requirements for SDH Transmission Network - Ring Network (Tentative Specifications)
YDN 028-1997 Protection of Fiberoptic Cable System and Equipment - Linear Reuse Section, Self-recovery Ring and Other Types of Structures (Tentative Specifications)
YDN 029-1997 (Transfer SDH PDH network unit - Function Description Frame and multiplexing structures and equipment (Temporary Provisions) (internal standard))
YDN 030.1-1997 Implications and process of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard)
YDN 030.2-1997 Code number and dialing procedure of universal personal telecommunication, wide area Centrex switch (WAC), vote of telephone (VOT) and mass calling (MAS) services (internal standard)
YDN 031-1997 Technical system of intelligent network (temporary regulations) (internal standard)
YDN 032-1997 Technology system requirements for ISDN
YDN 033-1997 Technical Requirements for Local Telephone Network Management
YDN 034.1-1997 ISDN subscribers - specification for network interfaces Part 1: Technical specification for physical layers
YDN 034.2-1997 ISDN subscribers - specification for network interfaces Part 2: Technical specifications for data link layers (internal standard)
YDN 034.3-1997 ISDN subscribers - specification for network interfaces Part 3: Technical specifications for third-layer basic call control (internal standard)
YDN 034.4-1997 ISDN subscribers - specification for network interfaces. Part 4 Technical specifications for supplementary services (internal standard)
YDN 034-1997 ISDN User - Specification on Network Interface
YDN 036-1997 (China postal financial computer network application layer protocol - Savings section)
YDN 037-1997 Synchronous digital hierarchy (SDH) - management functions, ECC and Q3 interfaces - Specifications for protocol stacks (temporary regulations)
YDN 038.1-1999 Specifications of Signalling System No. 7 - Isdn User Part
YDN 038-1997 Technical Specifications in National NO.7 Signaling Mode - Integrated Services Digital Network User Part (ISUP) (Tentative Specifications)
YDN 039-1997 Test Specifications for Transaction Capability Part in National NO.7 Signaling Mode
YDN 040-1997 Test method for N-ISDN (Narrowband-Integrated Services Digital Network) and PSTN interface signaling
YDN 041-1997 (1800MHz TDMA digital cellular mobile communication system technical requirements (Temporary Provisions))
YDN 042-1997 (Feeder cable access network with the technical requirements)
YDN 043-1997 Technical Specification for No. 7 ISUP Signaling of Digital Cellular Telecommunication Network
YDN 044-1997 (800MHz CDMA digital cellular mobile communication network technology system (Temporary Provisions) (internal standard))
YDN 045-1997 Basic Specifications for Management Network Information Model of Synchronous Digital Hierarchy (SDH)
YDN 046-1997 Technical Requirements for Automatic Accounting System of Telephone of Centralized Charging and Management Type (Tentative Specifications)
YDN 047-1997 Technical specifications for service switching points (SSP) of China intelligent network equipment (internal standard)
YDN 048-1997 Technical specifications for service control points (SCP) of China intelligent network equipment (internal standard)
YDN 049-1997 Technical specifications for service management points (SMP) of China intelligent network equipment (internal standard)
YDN 050-1997 Technical specifications for Service Create Environment Points (SCEP) of China Intelligent Network Equipment
YDN 051-1997 (High-speed wireless paging system networking protocols (Temporary Provisions) (internal standard))
YDN 052-1997 Specifications for B-ISDNATM Layer
YDN 053.1-1997 Technical Specifications for Type 1 (AAL1) in Adaptation Layer of B-ISDN ATM
YDN 053.3-1997 Technical Specifications for Type 3/4 (AAL) in Adaptation Layer of B-ISDN ATM
YDN 053.4-1997 Technical Specifications for Type 5 (AAL) in Adaptation Layer of B-ISDN ATM
YDN 054-1997 Functional Characteristics of Asynchronous Transfer Model of B-ISDN
YDN 055-1997 Technical Speeifications for Mobile Station Equipment of 900/1800 MHz TDMA Digital Cellular Mobile Communications Network (Tentative Specifications)
YDN 056-1997 Technical Requirements for Access Network - High Bit Rate Digital Subscriber Line (HDSL) (Tentative Specifications)