SRVCC场景中用户IMS注册状态分析与研究
首发时间:2010-11-10
摘要:在SRVCC场景下,用户在进行切换之前注册在IMS域,当用户通过SRVCC切换到CS域之后,便无法对注册状态进行更新。如果用户在当前会话结束之前其IMS域的注册超时,IMS网络会将该用户注销,该用户当前正在进行的通话也将被释放,导致用户在进行SRVCC切换时可能发生掉话。本文对这一问题进行了分析,并提出一种在SRVCC场景中用户在切换后仍能保持IMS域注册状态的方案。
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The analysis and research of user's registration status in IMS under SRVCC scenario
Abstract:In the SRVCC scenario, the user registered in the IMS domain can't update its registration status after the SRVCC handover to CS domain. Once the user's registration status in the IMS domain times out before the end of the ongoing session, the IMS network will deregister the user and release the ongoing call. In other words, call drop may happen during the SRVCC handover. This paper analyzes this problem, and then proposes a solution to keep the user's registration status in the IMS domain still after the handover in the SR-VCC scenario.
Keywords: IMS SRVCC Registration Status
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No.4390029544253128****
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