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    • 5. 发明授权
    • User equipment, call continuity application server, and network handover method
    • 用户设备,呼叫连续性应用服务器和网络切换方法
    • US08155084B2
    • 2012-04-10
    • US12368620
    • 2009-02-10
    • Shuiping LongJie XuYi ZhangFang You
    • Shuiping LongJie XuYi ZhangFang You
    • H04W4/00H04L12/66
    • H04W36/0022H04L65/1016H04L65/1069H04M3/428H04M7/123H04W36/14H04W80/10
    • A network handover method applicable to network handover in ringing/ring back tone (RBT) or call hold is provided. According to this method, in ringing/RBT, one party performs a session negotiation with an Other End Point (OEP) via a call continuity application server, and then sends an off-hook signal to the OEP via the call continuity application server after the negotiation succeeds. Further, a call continuity application server and a user equipment (UE) are provided. According to the present disclosure, in ringing/RBT or call hold, even if the network coverage is not good, the UE may also be handed over to another network through call continuity, so as to effectively prevent the UE from dropping a call in ringing/RBT or call hold and thus improve the conversation quality of the user.
    • 提供适用于振铃/回铃音(RBT)或呼叫保持的网络切换的网络切换方法。 根据该方法,在振铃/ RBT中,一方经由呼叫连续性应用服务器与其他端点(OEP)进行会话协商,然后经由呼叫连续性应用服务器向OEP发送摘机信号 协商成功。 此外,提供呼叫连续性应用服务器和用户设备(UE)。 根据本公开,在振铃/ RBT或呼叫保持中,即使网络覆盖不好,也可以通过呼叫连续性将UE切换到另一网络,以有效地防止UE在呼叫中丢弃呼叫 / RBT或呼叫保持,从而提高用户的会话质量。
    • 6. 发明申请
    • Inter-domain routing method for a dual-mode terminal, registration system and method, gateway and signaling forking function
    • 双模终端的域间路由方法,注册系统和方法,网关和信令分路功能
    • US20070171893A1
    • 2007-07-26
    • US11490009
    • 2006-07-19
    • Jie XuWenyu LiuFang You
    • Jie XuWenyu LiuFang You
    • H04L12/66H04L12/56
    • H04W8/10H04W40/00H04W88/16
    • The present invention discloses an inter-domain routing method for a dual-mode terminal, and a registration system and method. In the present invention, with an inter-domain IWGW, the dual-mode terminal registers respectively with the IWGW when it logins in the circuit domain or the packet domain; a GMSC or CSCF triggers to the IWGM upon receipt of a call for the terminal; the IWGW decides the route according to the registration state and a predefined policy; and the GMSC or CSCF continues the call according the decision result. A practical policy is to route the call to a domain where the terminal has a latest registration. A SFF is added between the HLR and the VLR, for duplicating and forwarding the interaction signaling between the VLR and the HLR to the IWGW. The present invention also discloses an Interwork Gateway and a Signaling Forking Function.
    • 本发明公开了一种双模终端的域间路由选择方法,以及注册系统和方法。 在本发明中,通过域间IWGW,当双向终端登录电路域或分组域时,双模终端分别注册IWGW; GMSC或CSCF在接收到终端的呼叫时触发IWGM; IWGW根据注册状态和预定义策略决定路由; 并且GMSC或CSCF根据判定结果继续呼叫。 实际的策略是将呼叫路由到终端具有最新注册的域。 在HLR和VLR之间增加SFF,用于将VLR和HLR之间的交互信令复制并转发给IWGW。 本发明还公开了一种互通网关和信令分叉功能。
    • 7. 发明申请
    • Method for handoff from packet switching domain to circuit switching domain and equipment thereof
    • 从分组交换域到电路交换域切换的方法及其设备
    • US20070058791A1
    • 2007-03-15
    • US11499925
    • 2006-08-07
    • Wenyu LiuFang YouJie Xu
    • Wenyu LiuFang YouJie Xu
    • H04M1/64
    • H04W36/0022
    • The present invention discloses a method for handoff from a PS domain to a CS domain, including: the MS obtaining a handoff number and initiating a CS domain session request by taking the handoff number as a called number; a network side associating the CS domain session request to an original session of the MS and notifying the MS to finish an air interface handoff; the MS notifying the network side to finish a network side handoff. The present invention also discloses a CS domain access network simulating entity, a PS domain access network and an MS thereof. By adopting the solution, it is not necessary to modify existing network cells in the CS domain network, and the routing process is simplified. It is not necessary for handoff control layer entities to simulate original services of the CS domain. There is no new requirement for functions of the MGCF entity.
    • 本发明公开了一种从PS域切换到CS域的方法,包括:MS通过将切换号码作为被叫号码获得切换号码并发起CS域会话请求; 网络侧将CS域会话请求与MS的原始会话相关联,并通知MS完成空中接口切换; MS通知网络端完成网络侧切换。 本发明还公开了CS域接入网模拟实体,PS域接入网及其MS。 通过采用该方案,不需要修改CS域网中现有的网元,简化路由过程。 切换控制层实体不需要模拟CS域的原始业务。 MGCF实体的功能没有新的要求。
    • 8. 发明授权
    • Method for handoff from packet switching domain to circuit switching domain and equipment thereof
    • 从分组交换域到电路交换域切换的方法及其设备
    • US07522585B2
    • 2009-04-21
    • US11499925
    • 2006-08-07
    • Wenyu LiuFang YouJie Xu
    • Wenyu LiuFang YouJie Xu
    • H04L12/66
    • H04W36/0022
    • The present invention discloses a method for handoff from a PS domain to a CS domain, including: the MS obtaining a handoff number and initiating a CS domain session request by taking the handoff number as a called number; a network side associating the CS domain session request to an original session of the MS and notifying the MS to finish an air interface handoff; the MS notifying the network side to finish a network side handoff. The present invention also discloses a CS domain access network simulating entity, a PS domain access network and an MS thereof. By adopting the solution, it is not necessary to modify existing network cells in the CS domain network, and the routing process is simplified. It is not necessary for handoff control layer entities to simulate original services of the CS domain. There is no new requirement for functions of the MGCF entity.
    • 本发明公开了一种从PS域切换到CS域的方法,包括:MS通过将切换号码作为被叫号码获得切换号码并发起CS域会话请求; 网络侧将CS域会话请求与MS的原始会话相关联,并通知MS完成空中接口切换; MS通知网络端完成网络侧切换。 本发明还公开了CS域接入网模拟实体,PS域接入网及其MS。 通过采用该方案,不需要修改CS域网中现有的网元,简化路由过程。 切换控制层实体不需要模拟CS域的原始业务。 MGCF实体的功能没有新的要求。