XCON会议框架中举手功能的设计与实现  

Design and Implementation of Hand-up Function in XCON Conference Framework

作　　者：李满坡[1] 张伟[2] 向勇[3] 孟令愚[1] 杨宁[1] 

机构地区：[1]东北电网有限公司,沈阳110180 [2]东北大学信息科学与工程学院通信与信息系统研究所,沈阳110004 [3]中国科学院沈阳计算技术研究所,沈阳110171

出　　处：《小型微型计算机系统》2014年第3期467-472,共6页Journal of Chinese Computer Systems

摘　　要：XCON在信令协议方面具有很好的独立性和可扩展性,是目前主流的紧耦合式会议框架,但是其中的会议Presence服务只能单向地发布通告给与会者,缺乏交互性不能满足用户需求.举手功能是远程会议中一种典型的交互式应用.提出一种基于标准协议的举手功能实现方法,首先设计了会议Presence状态文档,在此基础上扩展设计了支持举手功能的会议Presence状态文档;然后设计了基于会议Presence的举手功能的信令处理流程;最后给出了基于开放源代码的XCON会议框架中举手功能的原型实现.本文方法有助于促进多媒体数据会议中举手机制的标准化工作.Centralized Conferencing [ XCON ） has independence and expansibility in terms of signaling protocols. It is the mainstream of tight-coupled conference framework. But the presence service in XCON lacks interactivity and cannot meet user needs due to unidi- rectional notification to participants. Hand-up function is a kind of typical interactive applications in remote conference. This paper presents a method based on standards to implement hand-up function. First, conference state document is designed, which is extended to support hand-up function. Then, signaling process procedure supporting hand-up function is given on the basis of conference pres- ence mechanism. Finally, a prototype of hand-up function based on open source in XCON conference framework is implemented. The proposed method will help to promote the standardization work of hand-up function in multimedia data conference.

关 键 词：集中式会议(XCON) 多媒体会议 PRESENCE 会议举手 事件包 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]