单一无线语音通话连续性中语音业务切换的方法和装置制造方法及图纸

本发明专利技术公开了一种单一无线语音通话连续性切换方法和装置，通过MME记录是否接收过网关设备发送的承载删除请求消息，若MME确定接收过所述承载删除请求消息，则所述MME不发送删除承载指示消息至网关设备以及删除本地语音业务承载资源，因此IMS侧MME进行语音业务承载删除后，在EPS侧不再进行语音业务承载删除，避免了SRVCC流程冲突；或者终结会话原因为SRVCC切换时，PCRF不发送重认证请求消息至网关设备,即在IMS侧网关设备不进行语音承载删除进程，从而避免了SRVCC流程冲突；或者在IMS上启动延时定时器，在延迟时间结束前，IMS接收PCRF发送的会话中断请求消息后释放IMS接入腿，不再发起语音承载删除进程，从而避免SRVCC流程冲突。

Method and apparatus for voice service switching in a single radio voice call continuity

The invention discloses a continuous switching method and device of a single radio voice call, through the MME record is received send gateway equipment carrying the delete request message, determine if MME received the bearer deletion request message, the MME does not send a message to delete the load indication gateway device and delete local voice business bearing resources, so the carrying the deletion of IMS voice service side of the MME, on the EPS side no voice service removed, to avoid the SRVCC process or the end of the session conflict; the reason for SRVCC switching, PCRF not to send heavy authentication request message to the gateway device, the gateway in the IMS side equipment for voice bearing removal process, thereby to avoid the SRVCC process conflict; or start delay timer in IMS, the delay time before the end of the IMS receiving PCRF sends session interrupt request message After the release of the IMS access legs, the voice is not initiated to carry the deletion process, thereby avoiding SRVCC process conflict.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：叶阳林，吴晓波，崇卫微，邓涛，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东;44