M16 信息传输指标 标准查询与下载

ITU-T K.83-2011 监测场强和电磁场.5号研究组

This Recommendation specifies the methods and characteristics of the monitoring system to be used for the continuous monitoring of electromagnetic fields emitted by radio transmitters, both in the broadband and in the frequency selective measurement systems, in order to assess the long-term exposure of people to electromagnetic fields in the band of 9 kHz-300 GHz.

Monitoring field strengths of electromagnetic fields (Study Group 5)

ITU-T SERIES G SUPP 43-2011 (预发布)光传送网(OTN)中IEEE 10GBASE-R的传输

This supplement describes different approaches for transport of 10GBASE-R signals, and one for 10GBASE-W signals, in optical transport networks via an ODU2 or non-standard ODU2-like frame format (i.e., rates, formats and mappings that are not defined in ITU-T Recommendations). This supplement includes descriptions related to multiplexing the non-standard ODU2-like structures into ODU3-like signals. Different attributes of the varying solutions are described to help provide guidance on which approaches are appropriate to which network contexts. Including a currently non-standard mapping in this supplement does not preclude considering that mapping for standardization at a future date.

(Pre-Published) Transport of IEEE 10GBASE-R in optical transport networks (OTN)

ITU-T P.863-2011 感知客观收听质量评估.12号研究组

This Recommendation 1 defines a single algorithm for assessing the speech quality of current and near future telephony systems that utilize a broad variety of coding, transport and speech enhancement technologies.Based on the benchmark results presented within the studies of ITU-T, an overview of the test factors, coding technologies and applications to which this Recommendation applies is given in Tables 1 to 4. Table 1 presents factors and applications included in the requirement specification and which were used in the selection phase of the ITU-T P.863 algorithm. It should be noted that the performance of the ITU-T P.863 algorithm under each individual condition in Table 1 is not reflected in this table. Additional and detailed analysis will be undertaken in the characterization phase of the ITU-T P.863 algorithm. Table 2 presents a list of conditions for which this Recommendation is not intended to be used. Table 3 presents test variables for which further investigation is needed, or for which ITU-T P.863 is subject to claims of providing inaccurate predictions when used in conjunction with these. Finally, Table 4 lists factors, technologies and applications for which the ITU-T P.863 algorithm has not currently been validated. Note that the ITU-T P.863 algorithm cannot be used to replace subjective testing.

Perceptual objective listening quality assessment Study Group 12

ITU-T SERIES G SUPP 43-2010 光传送网(OTN)中IEEE 10GBASE-R的传输.15号研究组

This supplement describes different approaches for transport of 10GBASE-R signals in optical transport networks via an ODU2 or non-standard ODU2-like frame format (i.e., rates, formats and mappings that are not defined in ITU-T Recommendations). This supplement includes descriptions related to multiplexing the non-standard ODU2-like structures into ODU3-like signals. Different attributes of the varying solutions are described to help provide guidance on which approaches are appropriate to which network contexts.

Transport of IEEE 10GBASE-R in optical transport networks (OTN) (Study Group 15)

ITU-R BT.1305-1-2010 与ITU-R建议BT.656和BT.799一致的接口中的作为补充数据信号的数字语音和补充数据

This Recommendation defines the mapping rules for the carriage of an AES/EBU bit stream as defined inRecommendation ITU-R BS.647 over horizontal ancillary data space of serial digital interfaces conformingto Recommendation ITU-R BS.656 and ITU-R BT.799. The data carried in the bit stream may be twochannels of periodically sampled and linearly represented digital audio data, or other data formatted to fit thepayload space of the AES/EBU bit stream.

Digital audio and auxiliary data as ancillary data signals in interfaces conforming to Recommendations ITU-R BT.656 and ITU-R BT.799

YD/T 1745-2009 传送网安全防护检测要求

本标准规定了传送网(含光传送网、微波接力传送网和卫星传送网)在安全等级保护、安全风险评估、灾难备份及恢复等方面的安全防护检测要求。 本标准适用于公用电信网中的传送网。

Security protection testing requirements for transport network

YD/T 1744-2009 传送网安全防护要求

本标准规定了传送网(含光传送网、微波接力传送网和卫星传送网)在安全等级保护、安全风险评估、灾难备份及恢复等方面的安全防护要求。 本标准适用于公用电信网中的传送网。

Security protection requirements for transport network

ITU-T P.342-2009 话带(300Hz～3400Hz)数字扬声免提电话终端的传输特性

Recommendation ITU-T P.342 provides audio performance requirements for digital hands-free and loudspeaking telephony terminals using,in the telephone band (300-3400 Hz),the waveform encoding according to Recommendations ITU-T G.711 (PCM at both 64 kbit/s and 56 kbit/s) and ITU-T G.726 (ADPCM 32 kbit/s).This Recommendation does not deal with audio performance requirements for digital telephones using coding schemes other than waveform encoding and at bit rates lower than 32 kbit/s.

Transmission characteristics for narrow-band digital loudspeaking and hands-free telephony terminals (Study Group 12)

ITU-T E.161.1 AMD 1 FRENCH-2009 用于公开电讯网络的紧急号码选择指引.修改件1.2号研究组

Amendment 1 to Recommendation ITU-T E.161.1 proposes amendments to Recommendation ITU-T E.161.1 due to the approval of Recommendation ITU-T E.101.

Guidelines to select Emergency Number for public telecommunications networks Amendment 1

ITU-T E.161.1 AMD 1 SPANISH-2009 用于公开电讯网络的紧急号码选择指引.修改件1.2号研究组

Amendment 1 to Recommendation ITU-T E.161.1 proposes amendments to Recommendation ITU-T E.161.1 due to the approval of Recommendation ITU-T E.101.

Guidelines to select Emergency Number for public telecommunications networks Amendment 1

ITU-T X.903-2009 信息技术 开放分布处理 参考模型:结构

Recommendation ITU-T X.903 | ISO/IEC 10746-3 contains the specification of the required characteristics that qualify distributed processing systems as open. These are the constraints to which open distributed processing (ODP) standards must comply. It uses the descriptive techniques from Recommendation ITU-T X.902 | ISO/IEC 10746-2.

Information technology – Open distributed processing – Reference model: Architecture (Study Group 17)

ITU-T RESOLUCION 1 SPANISH-2008 电信标准化国际电信联盟的议事规则(ITU-T）

distortion analyser. The width of the measurement steps should make it possible to take measurements with steps of 1%,

Rules of procedure of the ITU Telecommunication Standardization Sector (ITU-T)

ITU-T RESOLUCION 11 SPANISH-2008 在学习有关邮政服务和电信行业邮政经营理事会合作(POC)万国邮政联盟(UPU)

2%, 4%, 8%. A measurement will cover about 20000 transitions (measurement duration of about 15 minutes at 50 bauds: three transitions on the average per start-stop alphabetic signal).

Collaboration with the Postal Operations Council (POC) of the Universal Postal Union (UPU) in the study of services concerning both the postal and the telecommunication sectors

ITU-T J.602-2008 网络服务运营商.并行处理功能性的exLSDI信号实时传输用要求

This Recommendation specifies network service operator’s requirements for a real-time transmission system for signals in the extended LSDI hierarchy, including an encoder and a decoder. Appendix II to this Recommendation describes, for information purposes, a method based on the use of parallel processing for encoding images in the extended LSDI hierarchy. The described parallel processing includes a spatially segmented method, a temporally interleaved method, a frequency sub-band division method and possible hybrid schemes of those methods.

Network service operator's requirements for real-time transmission of exLSDI signals under parallel processing functionality Study Group 9

ITU-T X.893-2007 预发行 信息技术-ASN.1一般应用:快速infoset安全

The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical

Information technology Generic applications of ASN.1: Fast infoset security Study Group 17

ITU-T Q.840.1-2007 (预发布)以太无源光网络(EPON)管理接口的要求和分析

This Recommendation specifies the requirements and analysis for the management interface between the Element Management System (EMS) and the Network Management System (NMS) of Metro Ethernet as defined in MEF-10 and Ethernet over Transport (EoT), specifically the Ethernet ETH layer as defined in [ITU-T G.8010]. This Recommendation follows the interface specification methodology described in [ITU-T M.3020]. In this Recommendation, the EMS is an Operations System (OS) used to manage the individual network elements supporting Metro Ethernet and EoT services as well as the networks between them. One or more EMSs may be deployed depending on the different supplier products and geographic distribution of the network elements in the network. The NMS represents an integrated management OS across different technologies and EMSs. The NMS communicates with EMS through the Q Interface to realize its management functions. The management functions covered in this Recommendation include configuration management, performance measurement parameters management, and alarm reporting and testing in fault management. These management functions are described and divided by UML use cases in the requirements. The analysis provides the managed entities which support a protocol-neutral information model for Metro Ethernet and EoT management, and also explains the static and dynamic relationships between these managed entities using UML class diagrams and sequence diagrams. This Recommendation does not cover all aspects about Ethernet management; only those related to Metro Ethernet and EoT services management are addressed. This Recommendation is built on and extends the information model provided in [MEF 7].

Requirements and analysis for NMS-EMS management interface of Ethernet over Transport and Metro Ethernet Network (EoT/MEN) Study Group 4

ITU-T Q.3401-2007 NGN NNI发信号轮廓(协议组1)研究组11

This Recommendation contains a service-level profile, i.e., SIP/SDP interface description, between two network operators (NNI signalling profile), where the two different network operators may support different SIP/SDP profiles (i.e., they differ in terms of the SIP extensions, SIP information elements and SDP lines which are supported). Transport-level profile, e.g., RTP, is described as necessary as the media are described in the service-level signalling. NOTE 1 – Specification of the interworking between the SIP/SDP profile contained in this Recommendation and the SIP/SDP profiles in each operator's network (i.e., the functions contained inside the interworking entity/entities at the network boundary) is out of scope of this Recommendation. For the protocol set 1 of the NGN NNI signalling profile, this Recommendation covers the voiceband services such as VoIP (audio, text and so on), DTMF and T.38 fax. NOTE 2 – Support for a mobility management interface is not supported in this version of this interface. However, nomadicity of users between different networks is supported.

NGN NNI signalling profile (protocol set 1) Study Group 11

ITU-T X.607-2007 信息技术.增强型通信传输协议规范:双工多播传送

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Information technology Enhanced communications transport protocol: Specification of duplex multicast transport Study Group 17

ITU-T T.808 CORR 1-2007 信息技术-JPEG 2000图像编码系统:交互工具、应用程序接口和协议技术勘误1

In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Information technology JPEG 2000 image coding system: Interactivity tools APIs and protocols Technical Corrigendum 1

ITU-T X.509 CORR 1-2007 信息技术.开式系统互连.人名地址录:校验结构

This extension may, at the option of the certificate issuer, be either critical or non-critical. It is recommended that it be flagged critical, otherwise a certificate user may not check that subsequent certificates in a certification path are located

Information technology ?Open Systems Interconnection ?The Directory: Public-key and attribute certificate frameworks Technical Corrigendum 1 Study Group 17