IMS域的切换研究和IMS的业务开发
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摘要
IMS(IP多媒体子系统)是下一代网络的核心技术,也是解决移动与固网融合,引入语音、数据、视频三重融合等差异化业务的重要方式。IMS的产业链发展,在现阶段还存在诸多需要解决的问题。在技术标准方面,IMS的移动性管理机制不够完善,不适合IMS中实时业务的应用,无法保证会话的连续性;在产品层面,缺乏吸引人的新业务和新应用,商业模式和盈利模式不够明朗。
本文分析了IMS网络架构及其对移动性管理的要求,对移动IP协议和SIP移动性管理机制进行理论和定量分析,提出一种适合于IMS异构网络环境的无缝切换解决方案,该方案通过提前的地址预留,数据转发,降低了切换时延和分组丢失,并且该方案不需要增加新的网络元件和更改网络拓扑结构,易于实施。
在对IMS网络应用模式分析的基础上,本文提出了一种基于IMS的具有创新意义的业务应用:观众音频视频采访业务。该业务基于IMS系统,充分利用了IMS业务提供的便利性及SIP协议的灵活性,解决了当前3G网络应用匮乏的问题,并增强了用户体验,并对该业务进行详细的功能分析和系统设计。
IMS (IP Multimedia Subsystem) is not only the core technology for next generation networks, but also for resolving integration of mobile and fixed networks, introducing the different mode of service of voice, data, video triple integration. As for IMS industry chain developmenmt, there are still many issues to be addressed at present. In the technical standards, IMS mobile management mechanism is not perfect enough, IMS is not suitable for real-time applications, can not guarantee the continuity of conversation; at the product level, lack of attractive new service and new applications, business models and profit model are uncertain.
This paper analyses the IMS network architecture and the requirements of mobility management, make theory and quantitative analysis of the mobile IP protocol and SIP mobility management mechanism, proposes a seamless switching solution that suitable for the IMS heterogeneous network environment, the solution reducing the handoff delay by advanced address reservation, and reducing packet lost by advanced data transmitted. This solution do not need additional network components , it's easy to implement.
By analysing the IMS network applications, this paper presents an IMS-based innovative business applications: audio and video interviews service. The service based on the IMS, and make full use of the facilities provided by the IMS and the flexibility of SIP, solve the current lack of valuable 3G network applications, and to enhance the user experience. This paper also conduct a detailed functional analysis and system design.
本文分析了IMS网络架构及其对移动性管理的要求,对移动IP协议和SIP移动性管理机制进行理论和定量分析,提出一种适合于IMS异构网络环境的无缝切换解决方案,该方案通过提前的地址预留,数据转发,降低了切换时延和分组丢失,并且该方案不需要增加新的网络元件和更改网络拓扑结构,易于实施。
在对IMS网络应用模式分析的基础上,本文提出了一种基于IMS的具有创新意义的业务应用:观众音频视频采访业务。该业务基于IMS系统,充分利用了IMS业务提供的便利性及SIP协议的灵活性,解决了当前3G网络应用匮乏的问题,并增强了用户体验,并对该业务进行详细的功能分析和系统设计。
IMS (IP Multimedia Subsystem) is not only the core technology for next generation networks, but also for resolving integration of mobile and fixed networks, introducing the different mode of service of voice, data, video triple integration. As for IMS industry chain developmenmt, there are still many issues to be addressed at present. In the technical standards, IMS mobile management mechanism is not perfect enough, IMS is not suitable for real-time applications, can not guarantee the continuity of conversation; at the product level, lack of attractive new service and new applications, business models and profit model are uncertain.
This paper analyses the IMS network architecture and the requirements of mobility management, make theory and quantitative analysis of the mobile IP protocol and SIP mobility management mechanism, proposes a seamless switching solution that suitable for the IMS heterogeneous network environment, the solution reducing the handoff delay by advanced address reservation, and reducing packet lost by advanced data transmitted. This solution do not need additional network components , it's easy to implement.
By analysing the IMS network applications, this paper presents an IMS-based innovative business applications: audio and video interviews service. The service based on the IMS, and make full use of the facilities provided by the IMS and the flexibility of SIP, solve the current lack of valuable 3G network applications, and to enhance the user experience. This paper also conduct a detailed functional analysis and system design.
引文
[1]张智江,朱士均,肖征荣基于IMS融合、开放的下一代网络人民邮电出版社2007
[2]徐培文,谢水珍,杨从保软交换与SIP实用技术机械工业出版社2007
[3]3GPP,TS 23.228 V6.9.0.IP Multimedia Subsystem(IMS),2005.3
[4]周怡 下一代网络中的PSTN/ISDN仿真系统 电信网技术 第4期 2006.4Page9-Page13
[5]赵慧玲 IMS应用及存在的问题探讨通信世界第6期2006.6 Page10-Page16
[6]孔松,梁景原3GPP IMS实时业务会话的无缝移动性方案现代电信科技第10期2005.10 Page10-Page13
[7]RFC 1889-RTP:A Transport Protocol for Real-Time Applications
[8]RFC 3261 J.Rosenberg,H.Schulzrinne,G.Camarillo SIP:Session Initiation Protocol June 2002 enabling Internet endpoints
[9]孙利民 移动IP技术电子工业出版社2003
[10]Miikka Poikselka,Aki Niemi,Hisham Khartabil 2004 John Wiley&Sons Ltd,England
[11]Lennox J,Schulzrinne H,Rosenberg J.Common gateway interface for SIP.US:IETF RFC 3050,2001
[12]RFC2976-INFO Method for Session Initiation protocol S.Donovan 2000
[13]RFC 3262-Reliability of Provisional Responses in Session Initiation Protocol(SIP)J.Rosenberg,H.Schulzrinne 2002
[14]RFC 3265-Session Initiation Protocol(SIP)-Specific Event Notification.A.B.Roach 2002
[15]RFC 2327-SDP:Session Description Protocol M.Handley,V.Jacobson April 1998
[16]朱魏 异构网络移动性研究南京邮电大学学报 2003
[17]A.C.Snoeren,H.Balakrishnan,An End-to-End Approach to Host Mobility,Proc.Mobicom,Aug.2000
[18]Nakajima N,Dutta A,Das S.Handoff delay analysisi and measurement for SIP based mobility in Ipv6.IEEE International Conference on Communications 2003,Anchorage,Alaska,USA,11-15 May 2003,Vol2:1085-1089
[19]Banerjee N,Basu K,Das S.K.Handoffdelay analysis in SIP-based mobility management in wireless networks.IPDPS'03,22-26 April,2003:224-231
[20]G,Bao.Performance Evaluation of TCP/RLP Protocol Stack over CDMA Wireless Links.ACM/Springer,WINET,No.3,229-237,1996
[21]C.Perkins et al.IP Mobility Support for Ipv4.IETF RFC 3344,Aug.2002
[22]N.Banerjie,W.WU,S.Das.Mobility Support in Wireless Interact.IEEE Wireless Comm.Vol.10 No.5 Oct.2003
[23]S.Seol,M.Kim,C.Yu.Experiments and Analysisi of Voice over Mobile IP.Proc.13th IEEE PIMRC'02 Sept.2002
[24]BEA WebLogic SIP Server 2.1 Documentation BEA Systems,Inc.2006.7
[25]Emmanuel Proulx.SIP简介第2部分:SIP SERVLET.BEA技术论坛2006.4
[26]P.Bellavista et al.Application-Level Middleware to Proactively Manage Handoffin Wireless Interact Multimedia.IEEE MMNS 2005
[27]Anders Kristensen.JSR 116:SIP Servlet API.Community Development of Java Technology Specifications 2003.7
[28]肖菁.快速应用JDBC控件访问数据库资源BEA Systems,Inc.2006.9
[29]肖菁.WebLogic中SQL Server2000的JDBC Pool配置BEA Systems,Inc.2005.1
[30]The Global Voice in Media Convergence:2068 Video Terminal Requirments.Convedia Corporation.2005.8
[31]Java Media Framework API.Sun Microsystems,Inc.2004.11
[32]RFC 2396-Uniform Resource Identifiers(URI)-Generic Syntax.T.Berners-Lee,R.Fielding.1998.8
[33]Ashutosh Dutta,Sunil Madhani.Fast-Handoff Schemes for Application Layer Mobility Management.IEEE 2004
[34]Wooseong Kim,Hongseok Jeon.Advanced Resource Reservation using PAR-SIP for Real-time Multimedia Communication.IEEE 2006
[35]Wei Wu.SIP-Based Vertical Handoff Between WWANS and WLANS.IEEE Wireless Communications 2005.6
[36]Paolo Bellavista,Antonio Corradi.SIP-Based Proactive Handoff Management for Session Continuity in the Wireless Intemet.IEEE ICDCSW'06 2006
[2]徐培文,谢水珍,杨从保软交换与SIP实用技术机械工业出版社2007
[3]3GPP,TS 23.228 V6.9.0.IP Multimedia Subsystem(IMS),2005.3
[4]周怡 下一代网络中的PSTN/ISDN仿真系统 电信网技术 第4期 2006.4Page9-Page13
[5]赵慧玲 IMS应用及存在的问题探讨通信世界第6期2006.6 Page10-Page16
[6]孔松,梁景原3GPP IMS实时业务会话的无缝移动性方案现代电信科技第10期2005.10 Page10-Page13
[7]RFC 1889-RTP:A Transport Protocol for Real-Time Applications
[8]RFC 3261 J.Rosenberg,H.Schulzrinne,G.Camarillo SIP:Session Initiation Protocol June 2002 enabling Internet endpoints
[9]孙利民 移动IP技术电子工业出版社2003
[10]Miikka Poikselka,Aki Niemi,Hisham Khartabil
[11]Lennox J,Schulzrinne H,Rosenberg J.Common gateway interface for SIP.US:IETF RFC 3050,2001
[12]RFC2976-INFO Method for Session Initiation protocol S.Donovan 2000
[13]RFC 3262-Reliability of Provisional Responses in Session Initiation Protocol(SIP)J.Rosenberg,H.Schulzrinne 2002
[14]RFC 3265-Session Initiation Protocol(SIP)-Specific Event Notification.A.B.Roach 2002
[15]RFC 2327-SDP:Session Description Protocol M.Handley,V.Jacobson April 1998
[16]朱魏 异构网络移动性研究南京邮电大学学报 2003
[17]A.C.Snoeren,H.Balakrishnan,An End-to-End Approach to Host Mobility,Proc.Mobicom,Aug.2000
[18]Nakajima N,Dutta A,Das S.Handoff delay analysisi and measurement for SIP based mobility in Ipv6.IEEE International Conference on Communications 2003,Anchorage,Alaska,USA,11-15 May 2003,Vol2:1085-1089
[19]Banerjee N,Basu K,Das S.K.Handoffdelay analysis in SIP-based mobility management in wireless networks.IPDPS'03,22-26 April,2003:224-231
[20]G,Bao.Performance Evaluation of TCP/RLP Protocol Stack over CDMA Wireless Links.ACM/Springer,WINET,No.3,229-237,1996
[21]C.Perkins et al.IP Mobility Support for Ipv4.IETF RFC 3344,Aug.2002
[22]N.Banerjie,W.WU,S.Das.Mobility Support in Wireless Interact.IEEE Wireless Comm.Vol.10 No.5 Oct.2003
[23]S.Seol,M.Kim,C.Yu.Experiments and Analysisi of Voice over Mobile IP.Proc.13th IEEE PIMRC'02 Sept.2002
[24]BEA WebLogic SIP Server 2.1 Documentation BEA Systems,Inc.2006.7
[25]Emmanuel Proulx.SIP简介第2部分:SIP SERVLET.BEA技术论坛2006.4
[26]P.Bellavista et al.Application-Level Middleware to Proactively Manage Handoffin Wireless Interact Multimedia.IEEE MMNS 2005
[27]Anders Kristensen.JSR 116:SIP Servlet API.Community Development of Java Technology Specifications 2003.7
[28]肖菁.快速应用JDBC控件访问数据库资源BEA Systems,Inc.2006.9
[29]肖菁.WebLogic中SQL Server2000的JDBC Pool配置BEA Systems,Inc.2005.1
[30]The Global Voice in Media Convergence:2068 Video Terminal Requirments.Convedia Corporation.2005.8
[31]Java Media Framework API.Sun Microsystems,Inc.2004.11
[32]RFC 2396-Uniform Resource Identifiers(URI)-Generic Syntax.T.Berners-Lee,R.Fielding.1998.8
[33]Ashutosh Dutta,Sunil Madhani.Fast-Handoff Schemes for Application Layer Mobility Management.IEEE 2004
[34]Wooseong Kim,Hongseok Jeon.Advanced Resource Reservation using PAR-SIP for Real-time Multimedia Communication.IEEE 2006
[35]Wei Wu.SIP-Based Vertical Handoff Between WWANS and WLANS.IEEE Wireless Communications 2005.6
[36]Paolo Bellavista,Antonio Corradi.SIP-Based Proactive Handoff Management for Session Continuity in the Wireless Intemet.IEEE ICDCSW'06 2006