Y.2201-2009

Requirements and capabilities for ITU-T NGN (Study Group 13)

Y.2201-2009 发布历史

This Recommendation specifies the high-level requirements for the development of a set of ITU-T Recommendations which will constitute NGN. The high-level requirements and related capabilities specified in this Recommendation are aligned with the general goals and objectives captured in [ITU-T Y.2001] and are based on the objectives of NGN release 2 [b-ITU-T Y.Sup-7]. The requirements are mainly provided from a high-level perspective@ and are not intended to constitute precise functional requirements for the different NGN entities. More detailed requirements are outside the scope of this Recommendation. It is recognized that a specific realization of NGN may be constituted by an arbitrary set (or superset) of services supported in NGN and of capabilities as specified in this Recommendation. NOTE 1 ?C Text taken from [ITU-T Y.2201] uses blue font. Also@ Appendix I identifies the main differences in terms of high-level requirements and capabilities between this Recommendation and [ITU-T Y.2201]. NOTE 2 ?C It is also required to consider how NGN can contribute to energy savings. However@ studies for this topic are ongoing in ITU-T Study Group 5 based on the output from the ITU-T Focus Group on ICTs and Climate Change. So requirements from energy savings aspects are for further study in this Recommendation. For the output from the ITU-T Focus Group on ICTs and Climate Change@ please see [b-ITU-T Climate].

Y.2201-2009由ITU-T - International Telecommunication Union/ITU Telcommunication Sector 发布于 2009-09-01，并于 2010-04-20 实施。

Y.2201-2009的历代版本如下：

• 2007年04月01日 Y.2201-2007
• 2009年09月01日 Y.2201-2009

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标准号

Y.2201-2009

发布日期

2009年09月01日

实施日期

2010年04月20日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

ITU-T - International Telecommunication Union/ITU Telcommunication Sector

引用标准

76

适用范围

This Recommendation specifies the high-level requirements for the development of a set of ITU-T Recommendations which will constitute NGN. The high-level requirements and related capabilities specified in this Recommendation are aligned with the general goals and objectives captured in [ITU-T Y.2001] and are based on the objectives of NGN release 2 [b-ITU-T Y.Sup-7]. The requirements are mainly provided from a high-level perspective@ and are not intended to constitute precise functional requirements for the different NGN entities. More detailed requirements are outside the scope of this Recommendation. It is recognized that a specific realization of NGN may be constituted by an arbitrary set (or superset) of services supported in NGN and of capabilities as specified in this Recommendation. NOTE 1 ?C Text taken from [ITU-T Y.2201] uses blue font. Also@ Appendix I identifies the main differences in terms of high-level requirements and capabilities between this Recommendation and [ITU-T Y.2201]. NOTE 2 ?C It is also required to consider how NGN can contribute to energy savings. However@ studies for this topic are ongoing in ITU-T Study Group 5 based on the output from the ITU-T Focus Group on ICTs and Climate Change. So requirements from energy savings aspects are for further study in this Recommendation. For the output from the ITU-T Focus Group on ICTs and Climate Change@ please see [b-ITU-T Climate].