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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク service layer ： ウィキペディア英語版 service layer In intelligent networks (IN) and cellular networks, service layer is a conceptual layer within a network service provider architecture. It aims at providing middleware that serves third-party value-added services and applications at a higher application layer. The service layer provides ''capability servers'' owned by a telecommunication network service provider, accessed through open and secure Application Programming Interfaces (APIs) by application layer servers owned by third-party content providers. The service layer also provides an interface to core networks at a lower resource layer.〔(Kristofer Kimbler, Service Interaction in Next Generation Networks: Challenges and Opportunities. Feature Interactions in Telecommunications and Software Systems. Papers from the sixths International Workshop on Feature Interactions in Telecommunications and Software Systems May 2000. Edition: illustrated. Published by: IOS Press, 2000. ISBN 1-58603-065-5, ISBN 978-1-58603-065-0. )〕 The lower layers may also be named control layer and transport layer (the transport layer is also referred to as the access layer in some architectures). The concept of service layer is used in contexts such as Intelligent networks (IN), WAP, 3G and IP Multimedia Subsystem (IMS). It is defined in the 3GPP Open Services Architecture (OSA) model, which reused the idea of the Parlay API for third-party servers. In software design, for example Service-oriented architecture, the concept of service layer has a different meaning. ==Service layer in IMS== The service layer of an IMS architecture provides multimedia services to the overall IMS network. This layer contains network elements which connect to the Serving-CSCF (Call Session Control Function) using the IP multimedia Subsystem Service Control Interface (ISC).〔http://www.3gpp.org/ftp/Specs/html-info/23228.htm〕 The ISC interface uses the SIP signalling protocol. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「service layer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.