| 摘要: |
| 由IETF最年轻的工作组之一的SIP(session initiation protocol)工作组发布的SIP相关标准已经成为通信和网络界的研究热点.目前SIP工作组发表的协议和草案超过30个,除了核心协议以外,其他协议涵盖QoS、安全、消息头和方法扩展、与PSTN等其他协议的互操作性、穿透防火墙和NAT、应用、多消息体、即时消息等诸多话题,其最终目标是为所有Internet成功的应用提供无所不在的接入,成为联系Internet和电信、多媒体的媒介.对SIP标准中的核心技术和研究进展进行了综述.着重介绍了以上SIP相关标准及应用中的核心技术和相关领域最新的研究动态,并指出了进一步的研究方向和应用前景. |
| 关键词: SIP工作组 SIP标准 SIP扩展 安全性 QoS 协议互操作性 3GPP 网络控制 SIP应用 |
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| 基金项目:Supported by the National High-Tech Research and Development Plan of China under Grant No.2002AA119020 (国家高技术研究发展计划(863)); the National Research Foundation for the Doctoral Program of Ministry of Education of China under Grant No.20040001050 (国家教育部博士点基金) |
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| A Survey on the Core Technique and Research Development in SIP Standard |
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SI Duan-Feng,HAN Xin-Hui,LONG Qin,PAN Ai-Min
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| Abstract: |
| Abstract: Although only more than one year since session initiation protocol (SIP) had been delivered, SIP has already become the research hotspot in telecommunication and network fields. More than 30 RFCs and drafts were delivered by SIP WG, including core protocol, QoS, security, message header and method extension, interconnection with PSTN, firewall and NAT traversal, application, multi-message body, instant messenger, etc. This paper introduces the SIP standard and the newest research trends in its related fields, and points out the future research direction and the promising foreground application. |
| Key words: SIP WG session initiation protocol SIP extend security QoS interconnection 3GPP network control SIP application |
