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    • 5. 发明申请
    • METHODS AND APPARATUSES FOR SUPPORTING HANDOVER OF A PS VOICE CALL TO A CS VOICE CALL BY USING SRVCC FUNCTION
    • 支持通过SRVCC功能呼叫CS语音呼叫的方法和装置
    • WO2012000535A1
    • 2012-01-05
    • PCT/EP2010/059138
    • 2010-06-28
    • Telefonaktiebolaget L M Ericsson (publ)GUSTAFSSON, RolandRYDNELL, GunnarYANG, Yong
    • GUSTAFSSON, RolandRYDNELL, GunnarYANG, Yong
    • H04W76/02
    • H04W36/0022H04W76/19H04W80/04
    • A method for a Mobile Control Node, MCN, supporting handover of a packet switched, PS, voice call of a given user entity anchored in a IP Multimedia Subsystem (IMS) to a circuit switched, CS, voice call, by using a Single Radio Voice Call Continuity, SRVCC, function, whereby, - after handover from PS to CS (102) voice call pertaining to a user entity, UE, which UE is in a suspended mode (305, 206/209/303), and upon receiving a SRVCC CS to PS resume request message (107) from a mobile switching centre, MSC, - issuing an explicit / implicit resume message (109, 306) to a packet gateway (PGW) node or a serving gateway (SGW) node, causing the UE to resume PS services (110). Further a method for a Mobile Switching Centre (MSC) supporting handover of a packet switched, PS, voice call of a given user entity (UE) via an SP Multimedia Subsystem (IMS) to a circuit switched, CS, voice call, by using a Single Radio Voice Call Continuity, SRVCC, function, wherein - after handover from PS to CS (103), and after detecting hang up or dropped call (106) issuing (209) a SRVCC CS to PS resume request message (107) to a MCN, thereby effecting the user entity to resume PS services of the voice call for a given user entity (UE).
    • 一种用于移动控制节点MCN的方法,其支持将IP多媒体子系统(IMS)中锚定的给定用户实体的分组交换,PS,语音呼叫切换到电路交换,CS,语音呼叫,通过使用单个无线电 语音呼叫连续性,SRVCC功能,其中 - 在从PS切换到CS(102)语音呼叫之后,UE处于暂停模式(305,206/209/303),并且在接收到 来自移动交换中心MSC的SRVCC CS到PS恢复请求消息(107) - 向分组网关(PGW)节点或服务网关(SGW)节点发布显式/隐式恢复消息(109,306),导致 UE恢复PS服务(110)。 此外,移动交换中心(MSC)支持通过SP多媒体子系统(IMS)将给定用户实体(UE)的分组交换,PS语音呼叫切换到电路交换,CS,语音呼叫的移动交换中心(MSC)的方法,通过使用 单播无线电语音呼叫连续性SRVCC功能,其中 - 在从PS切换到CS(103)之后,以及在检测到挂断或掉线呼叫(106)发出(209)SRVCC CS到PS恢复请求消息(107)之后, MCN,从而使用户实体恢复给定用户实体(UE)的语音呼叫的PS服务。