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    • 21. 发明申请
    • HANDOVER OF EMERGENCY CALL ANCHORED IN IMS TO A CIRCUIT SWITCHED ACCESS NETWORK
    • 在IMS中将紧急呼叫切换到电路切换访问网络
    • WO2013135282A1
    • 2013-09-19
    • PCT/EP2012/054450
    • 2012-03-14
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)LINDHOLM, FredrikABTIN, Afshin
    • LINDHOLM, FredrikABTIN, Afshin
    • H04W36/00H04W4/22
    • H04W36/0022H04W4/90
    • A method performs a Single Radio Voice Call Continuity, SRVCC, Packet Switched, PS, to Circuit Switched, CS, handover of an emergency call that is routed over an IP Multimedia Subsystem, IMS, network. The emergency call is first transferred from an access in a first region served by a first Mobility Management Entity, MME, to a second region served by a second MME. The method includes sending a first handover request from the first MME to the second MME to transfer the call to the second region. The first handover request includes an Emergency Session Transfer Number for SRVCC, E-STN-SR, identifying an Emergency Access Transfer Function, EATF, in the first region. A second handover request for handover to a CS access is sent to a target Mobile Switching Centre, MSC, and includes the E-STN-SR. The emergency call is handed over to the CS access using the E-STN-SR to route the call via the EATF in the first region.
    • 一种方法执行通过IP多媒体子系统,IMS,网络路由的紧急呼叫的单无线语音呼叫连续性,SRVCC,分组交换,PS到电路交换,CS切换。 紧急呼叫首先从由第一移动性管理实体MME服务的第一区域中的接入传送到由第二MME服务的第二区域。 该方法包括从第一MME向第二MME发送第一切换请求以将呼叫转移到第二区域。 第一切换请求包括用于SRVCC的紧急会话转移号码,E-STN-SR,识别第一区域中的紧急接入传递功能EATF。 将向CS接入切换的第二切换请求发送到目标移动交换中心MSC,并且包括E-STN-SR。 使用E-STN-SR将紧急呼叫切换到CS接入,以通过第一区域中的EATF路由呼叫。
    • 22. 发明申请
    • HANDOVER OF PRIORITY CALLS FROM A CIRCUIT SWITCHED ACCESS NETWORK WITH SINGLE RADIO VOICE CALL CONTINUITY
    • 从具有单一无线电语音呼叫连续性的电路切换接入网络切换优先呼叫
    • WO2013110345A1
    • 2013-08-01
    • PCT/EP2012/051338
    • 2012-01-27
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)KELLER, RalfLINDHOLM, Fredrik
    • KELLER, RalfLINDHOLM, Fredrik
    • H04W36/00
    • H04W36/0022H04W76/36
    • A method is provided of handing over a priority call with Single Radio Voice Call Continuity, SRVCC. The priority call is handed over from a User Equipment, UE, accessing an IP Multimedia Subsystem, IMS, network via a Circuit Switched, CS, access network to a target Packet Switched, PS, access network thereby establishing a priority IMS session. The priority call has a specified CS priority level. The method includes sending a hand over request from the CS access network towards the PS access network and the IMS network to transfer the priority call. A PS priority level for the session in the PS network is determined based on the specified CS priority level. Bearer resources for the IMS session are allocated. The bearer resources are based, at least in part, on the PS priority level. The call is transferred to the IMS session over the PS access network.
    • 提供了一种通过单无线电语音呼叫连续性SRVCC递交优先呼叫的方法。 优先呼叫从用户设备UE切换,经由电路交换CS接入网络接入IP多媒体子系统IMS,网络到目标分组交换,PS接入网络,从而建立优先IMS会话。 优先呼叫具有指定的CS优先级。 该方法包括从CS接入网向PS接入网和IMS网发送请求转交优先呼叫。 基于指定的CS优先级来确定PS网络中的会话的PS优先级。 分配用于IMS会话的承载资源。 承载资源至少部分地基于PS优先级。 该呼叫通过PS接入网络传送到IMS会话。
    • 23. 发明申请
    • HOME ROUTING FOR IMS ROAMING USING VPLMN ANCHOR
    • 使用VPLMN ANCHOR进行IMS漫游的首页路由
    • WO2013030313A1
    • 2013-03-07
    • PCT/EP2012/066924
    • 2012-08-30
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)LINDHOLM, FredrikÖSTER, Gert
    • LINDHOLM, FredrikÖSTER, Gert
    • H04L29/06
    • H04W8/04H04L65/1006H04L65/1016H04L65/1066H04L65/1069
    • Methods and apparatus are described for use in handling session establishment in a home network (502) or visited network (501). IMS roaming is described for a UE (507) of the home network (502) that is roaming in the visited network (501 ). On receipt of a session establishment request associated with an originating call from the UE (507) the home network (502) determines whether to perform home routing and/or direct home routing of the originating call to the called party. When home routing, execution of service invocation is suspended and the home network (502) sends a session establishment request including a routing number of an application server (511) in the home network (502) back to the visited network (501), which performs visiting service invocation of the call and routes the signalling and media to the home network (502) based on the routing number. The network node (510) in the home network (502) resumes execution of service invocation and routing of the originating call to the called party. When direct home routing, the home network (502) performs execution of service invocation and routes the originating call to the called party.
    • 描述了用于处理家庭网络(502)或访问网络(501)中的会话建立的方法和装置。 对在漫游在访问网络(501)中的归属网络(502)的UE(507)描述IMS漫游。 在接收到来自UE(507)的与始发呼叫相关联的会话建立请求时,归属网络(502)确定是否对被叫方进行原始呼叫的归属路由和/或直接归属路由。 当家庭路由时,停止执行服务调用,并且归属网络(502)将在家庭网络(502)中包括应用服务器(511)的路由号码的会话建立请求发送回到访问网络(501),其中 执行呼叫的访问服务调用,并且基于路由号码将信令和媒体路由到家庭网络(502)。 家庭网络(502)中的网络节点(510)恢复服务调用的执行和始发呼叫的路由到被叫方。 当直接归属路由时,家庭网络(502)执行服务调用的执行,并将始发呼叫路由到被叫方。
    • 24. 发明申请
    • HANDLING CALL TRANSFER FROM A CS ACCESS NETWORK TO A PS ACCESS NETWORK
    • 处理从CS访问网络到PS访问网络的呼叫转移
    • WO2012130510A1
    • 2012-10-04
    • PCT/EP2012/052105
    • 2012-02-08
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)LINDHOLM, FredrikKELLER, Ralf
    • LINDHOLM, FredrikKELLER, Ralf
    • H04W36/00
    • H04W36/0022H04W4/14H04W36/14H04W88/06
    • A method and apparatus for handling a call transfer from a circuit switched access network to a packet switched access network. A Mobile Switching Centre Server receives a notification that a call for a terminal requires handover from a circuit switched access network to a packet switched access network. The MSC Server determines whether the terminal is currently registered in an IMS network and/or whether the MSC Server is registered such that it can perform handover from the circuit switched access network to the packet switched access network. If so, then return Single Radio Voice Call Continuity is invoked to perform a handover of the call from the circuit switched access network to the packet switched access network. If not then the MSC Server invokes error handling procedures.
    • 一种用于处理从电路交换接入网络到分组交换接入网络的呼叫转移的方法和装置。 移动交换中心服务器接收到对终端的呼叫需要从电路交换接入网络切换到分组交换接入网络的通知。 MSC服务器确定终端当前是否在IMS网络中注册和/或MSC服务器是否被注册,使得它可以执行从电路交换接入网络到分组交换接入网络的切换。 如果是,则返回单个无线电语音呼叫连续性被执行以执行从电路交换接入网络到分组交换接入网络的呼叫切换。 如果不是,则MSC服务器调用错误处理过程。
    • 28. 发明申请
    • GEOGRAPHICALLY REDUNDANT AND MULTIPLE EATF NODES
    • 地理上冗余和多元的甜点
    • WO2013075746A1
    • 2013-05-30
    • PCT/EP2011/070874
    • 2011-11-23
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)ABTIN, AfshinLINDHOLM, Fredrik
    • ABTIN, AfshinLINDHOLM, Fredrik
    • H04L29/06H04W4/22
    • H04W4/90H04L65/1069H04W24/04H04W36/0016H04W64/00H04W76/50H04W88/10
    • An emergency call access transfer function, EATF, node (138a) is described for use when hand over of a user equipment, UE, (108) from a first to a second access network (104 to 106) to is performed during an emergency call session, ECS. The EATF node (138a) receives a request for transferring the ECS from the first access network (104) to the second access network (106). The EATF node (138a) transfers the ECS of the UE (108) from the first access network (104) to the second access network (106) when the ECS is known to the EATF node (138a). The EATF node (138a) will select a second EATF node (138b) from a set of one or more EATF nodes when the ECS is unknown or not anchored with the EATF node (138a), and forwards the request for transferring the ECS to the second EATF node (138b). The EATF node (138a) may be in a first network region and the second EATF node (138b) may be in the first or a second network region. In this way, an efficient hand over or transfer mechanism for ECSs can be performed when distributing ECS network load over multiple EATF nodes (138a, 138b) within the same or different network regions, and without requiring other network nodes to maintain knowledge of the EATF nodes (138a, 138b) anchoring the ECS of UE (108).
    • 描述紧急呼叫接入传递功能EATF节点(138a),用于当用户设备UE(108)从第一到第二接入网络(104至106)切换时在紧急呼叫期间执行 会议,ECS。 EATF节点(138a)接收从第一接入网络(104)向第二接入网络(106)传送ECS的请求。 当ECAT对于EATF节点(138a)是已知的时,EATF节点(138a)将UE(108)的ECS从第一接入网络(104)传送到第二接入网络(106)。 当ECS未知或不与EATF节点(138a)一起固定时,EATF节点(138a)将从一个或多个EATF节点的集合中选择第二EATF节点(138b),并将用于将ECS传送到 第二EATF节点(138b)。 EATF节点(138a)可以在第一网络区域中,并且第二EATF节点(138b)可以在第一或第二网络区域中。 以这种方式,当在相同或不同网络区域内的多个EATF节点(138a,138b)上分发ECS网络负载时,可以执行用于ECS的有效的切换或传送机制,并且不需要其他网络节点来维护EATF的知识 锚定UE(EC)的节点(138a,138b)。
    • 29. 发明申请
    • METHODS OF AND NODES FOR INFORMING A CONTROL NODE IN A SERVING COMMUNICATION NETWORK OF ADDRESS INFORMATION ABOUT A SESSION ANCHOR NODE IN THE SERVING COMMUNICATION NETWORK
    • 在服务通信网络的服务通信网络中的一个会议信息的方法和通知
    • WO2013029647A1
    • 2013-03-07
    • PCT/EP2011/064714
    • 2011-08-26
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)KELLER, RalfLINDHOLM, Fredrik
    • KELLER, RalfLINDHOLM, Fredrik
    • H04W48/18
    • H04W36/0022H04W8/06H04W8/26H04W60/04
    • A method of informing a control node (110) in a serving communication network (106) of address information about a session anchor node in the serving communication network (106) is described. The control node (110) is accessible by a terminal (104) via a circuit switched access of the serving communication network (106). The serving communication network (106) of the terminal (104) is different from an internet protocol based home communication network (102) of the terminal (104). The method is executed by a session anchor node (108) in the home communication network (102). The method comprises receiving (120) an update request for the control node (110) being updated of address information about the session anchor node in the serving communication network (106), receiving (120) address information about the session anchor node in the serving communication network (106), and sending (130) the received address information based on the received update request. The latter may enable the control node (110) to route a session of the terminal (104) via the session anchor node in the serving communication network (106).
    • 描述了在服务通信网络(106)中通知服务通信网络(106)中关于会话锚节点的地址信息的控制节点(110)的方法。 控制节点(110)可以由终端(104)经由服务通信网络(106)的电路交换接入来访问。 终端(104)的服务通信网络(106)与终端(104)的基于因特网协议的归属通信网络(102)不同。 该方法由家庭通信网络(102)中的会话锚节点(108)执行。 该方法包括接收(120)对服务通信网络(106)中关于会话锚节点的地址信息进行更新的控制节点(110)的更新请求,接收(120)关于服务中的会话锚节点的地址信息 通信网络(106),并且基于接收到的更新请求发送(130)所接收的地址信息。 后者可以使得控制节点(110)能够经由服务通信网络(106)中的会话锚节点路由终端(104)的会话。