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    • 9. 发明授权
    • Circuit switch fallback (CSFB) during prepaging
    • 电路切换回退(CSFB)
    • US08588772B2
    • 2013-11-19
    • US13413752
    • 2012-03-07
    • Lu TianYong Zhao
    • Lu TianYong Zhao
    • H04W4/00H04M3/42H04L12/26H04L12/66
    • H04W36/0022H04W68/00H04W76/16
    • A method and apparatus for delivering a mobile terminated call to user equipment (UE) in a circuit switched fallback (CSFB) capable wireless network system using prepaging. When the VMSC registered in the HLR of the called UE receives a provide roaming number message from the HLR indicating that a CS call to the UE has been originated at a GMSC, the VMSC starts a paging process with a mobility management entity (MME) then returns a mobile station roaming number (MSRN) to the HLR when the called UE is in EMM-connected mode. Alternatively, the VMSC sets a guard timer and returns the MSRN to the HLR when the guard timer expires. In the meantime, the VMSC remain in a paging stage waiting for the response from the UE falling back to the UMTS/GSM network from the LTE network.
    • 一种用于在使用预划片的电路交换回退(CSFB)能力无线网络系统中向用户设备(UE)递送移动终止呼叫的方法和装置。 当登记在被叫UE的HLR中的VMSC从HLR接收到指示向GMSC发起对UE的CS呼叫的提供漫游号码消息时,VMSC开始与移动性管理实体(MME)的寻呼过程 当被叫UE处于EMM连接模式时,向HLR返回移动台漫游号码(MSRN)。 或者,VMSC设置保护定时器,并在保护定时器超时时将MSRN返回给HLR。 同时,VMSC保持在寻呼阶段,等待UE从LTE网络回退到UMTS / GSM网络的响应。
    • 10. 发明授权
    • Inter-PLMN roaming
    • 跨PLMN漫游
    • US08452278B2
    • 2013-05-28
    • US12310180
    • 2007-08-21
    • Lu TianBruce ZhaoPing ShaEddy Lin
    • Lu TianBruce ZhaoPing ShaEddy Lin
    • H04W4/00H04W40/00
    • H04W8/02H04Q3/0045
    • A method for facilitating inter-PLMN (Public Land Mobile Network) roaming comprises a plurality of operations. A home PLMN of a caller's wireless communication device performs an operation for determining that the caller's wireless communication device is not located in the home PLMN and, in response to determining that the caller's wireless communication device is not located in the home PLMN, an operation for facilitating a call routing service in a Service Control Point (SCP) of the home PLMN. The call routing service causes a call originated by the caller's wireless communication device while roaming in a visited PLMN to be routed back to a Gateway Mobile Switching Center (GMSC) of the home PLMN thereby allowing the home PLMN to have control over the roaming caller originated call and to have limited dependency on the visited PLMN.
    • 促进PLMN(公共陆地移动网络)漫游的方法包括多个操作。 呼叫者的无线通信装置的归属PLMN执行用于确定呼叫者的无线通信装置不在家庭PLMN中的操作,并且响应于确定呼叫者的无线通信装置不在家庭PLMN中, 促进归属PLMN的服务控制点(SCP)中的呼叫路由服务。 呼叫路由服务导致呼叫者的无线通信设备发起的呼叫,同时在被访问的PLMN中漫游,被路由回到归属PLMN的网关移动交换中心(GMSC),从而允许归属PLMN控制漫游呼叫者发起 呼叫并对受访PLMN的依赖程度有限。