IMS signalling for multiparty services based on network level multicast

2007 Next Generation Internet Networks Pub Date : 2007-05-21 DOI:10.1109/NGI.2007.371204

I. Vidal, I. Soto, F. Valera, Jaime García, A. Azcorra

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引用次数: 3

Abstract

The standardization process of the UMTS technology has led to the development of the IP Multimedia Subsystem (IMS). IMS provides a framework that supports the negotiation of the next generation multimedia services with QoS requirements that are envisioned for 3G networks. But even though many of these services involve the participation of multiple users in a multiparty arrangement, the delivery technology at network level is still unicast based. This approach is not optimum, in terms of transmission efficiency. In this paper, a new approach is presented proposing to use a network level multicast delivery technology for the multiparty services that are signalled through IMS. The main advantages and drawbacks related with this new approach are analyzed in the article. Finally, as a starting point in the development of the presented solution, a new SIP signalling dialogue is proposed allowing the negotiation of a generic multiparty service, and supporting at the same time the configuration of the corresponding network level multicast delivery service with QoS requirements that will be used in the user plane.

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基于网络级组播的多方业务IMS信令

UMTS技术的标准化进程带动了IP多媒体子系统(IMS)的发展。IMS提供了一个框架，该框架支持对下一代多媒体服务进行协商，并满足3G网络所设想的QoS需求。但是，即使这些服务中的许多都涉及多方安排中多个用户的参与，网络级别的交付技术仍然是基于单播的。就传输效率而言，这种方法不是最优的。本文提出了一种利用网络级多播传输技术对通过IMS发送信号的多方业务进行传输的新方法。本文分析了这种新方法的主要优点和缺点。最后，作为本解决方案开发的起点，提出了一种新的SIP信令对话，允许通用多方服务的协商，同时支持配置相应的具有QoS要求的网络级多播交付服务，该服务将用于用户平面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2007 Next Generation Internet Networks

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