| 一种基于SIP扩展实现IMS多域间QoS方案 |
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| 引用本文： | 陈恒志,肖寒春,毛期俭.一种基于SIP扩展实现IMS多域间QoS方案[J].通信技术,2007,40(12):383-384,390. |
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| 作者姓名： | 陈恒志 肖寒春 毛期俭 |
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| 作者单位： | 1. 重庆邮电大学,通信与信息工程学院,重庆,40065
2. 重庆邮电大学,信科股份有限公司,重庆,40065 |
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| 基金项目： | 重庆市教委资助项目;重庆邮电大学通信学院青年教师基金 |
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| 摘 要： | 以IMS为核心的NGN网络己被认为是适应未来固定网与移动网融合的网络架构。要实现IMS跨网络的QOS保证，需要域间、上下层的相互协作。丈中分析了IMS QoS机制，指出了在资源协商、资源预留以及资源保证方面SIP协议的不足，提出了一种基于SIP扩展实现多域间QoS的方案，分析了该方案所带来的在信令流程中减少信令负荷等方面的改进，并给出了具体实现方案。
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| 关 键 词： | 多域间QoS SIP扩展 |
| 文章编号： | 1002-0802（2007）12-0383-02 |
| 收稿时间： | 2007-07-07 |
| 修稿时间： | 2007年7月17日 |
A Method based on Extension of SIP for IMS QoS between Heterogeneous Networks |
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| CHEN Heng-zhi,XIAO Han-chun,MAO Qi-jian.A Method based on Extension of SIP for IMS QoS between Heterogeneous Networks[J].Communications Technology,2007,40(12):383-384,390. |
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| Authors: | CHEN Heng-zhi XIAO Han-chun MAO Qi-jian |
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| Abstract: | The NGN network, taking IMS as its core, has been widely considered as the network architecture suitable for the future integration of fixed and mobile networks. To guarantee cross-network QoS of IMS, it requires the cooperation between heterogeneous networks. This paper analyzes IMS QoS mechanism, points out the defects of SIP protocol in the aspects of resource negotiation, resource reservation and resource guarantee; advances a method based on SIP extension for IMS QoS between heterogeneous networks; and discusses the improvement achieved by this method in the signaling flow. Finally, this paper gives the concrete realization of the program. |
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| Keywords: | IMS SDP |
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