公开(公告)号：US09900806B2

公开(公告)日：2018-02-20

申请号：US14919390

申请日：2015-10-21

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Fredrik Lindholm ,  Ralf Keller

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04W36/14 ,  H04W4/14 ,  H04W88/06

CPC分类号： H04W36/0022 ,  H04W4/14 ,  H04W36/14 ,  H04W88/06

摘要： 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.

公开(公告)号：US09867090B2

公开(公告)日：2018-01-09

申请号：US13885483

申请日：2013-04-12

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Magnus Hallenstål ,  Jan Holm ,  Fredrik Lindholm

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04L29/06

CPC分类号： H04W36/0022 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1053 ,  H04L65/1069

摘要： Dual Radio Access Transfer of an IMS in an alerting phase for the Packet Switched to Circuit Switched direction includes initiating an IMS media session towards UE and, during a session alerting phase, making a determination that a DRVCC transfer is required from a PS to CS, access, sending a SIP message from the UE to a SCC-AS, over the PS access, informing the SCC-AS of the DRVCC transfer, and responding to receipt of the SIP message at the SCC-AS by sending a SIP INVITE from the SCC-AS towards MSC. The SIP INVITE includes an identity of the UE as a called party identity and the STN as the calling party identity. The Transfer includes sending from the MSC to the UE a CS Setup message, whereupon the MSC is placed in a state in which it expects a CS Answer from the UE.

公开(公告)号：US09813949B2

公开(公告)日：2017-11-07

申请号：US14274208

申请日：2014-05-09

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Ralf Keller ,  Fredrik Lindholm ,  Karl-Peter Ranke

IPC分类号： H04W36/00 ,  H04L29/06 ,  H04W88/00 ,  H04W8/04 ,  H04W60/04 ,  H04W60/06 ,  H04W76/02 ,  H04W68/00

CPC分类号： H04W36/0022 ,  H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04W8/04 ,  H04W60/04 ,  H04W60/06 ,  H04W68/005 ,  H04W76/10 ,  H04W88/005

摘要： Techniques and apparatus are described for controlling set up of a terminating call from an IMS to a UE, in a Circuit Switched Fallback (CSFB) situation. A first MSC receives a terminating call from IMS and tries to page the UE. The UE has moved to the second MSC and performs a Location Update to the second MSC. The second MSC informs the first MSC with a Send Identification message comprising an address of the second MSC. The first MSC maintains the IMS subscription of the UE at Cancel Location and forwards the terminating call to the second MSC. The first MSC acts as relay for subsequent call control messages for calls of the UE. The first and second MSCs are supervising the ongoing calls and as soon as all calls are completed the second MSC registers the UE into IMS and the first MSC de-registers the UE from IMS.

公开(公告)号：US20160269535A1

公开(公告)日：2016-09-15

申请号：US15034482

申请日：2013-11-08

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Venkata Ramesh BALABHADRUNI ,  Fredrik Lindholm

IPC分类号： H04M1/725 ,  H04M3/56 ,  H04W4/02 ,  H04W4/22

CPC分类号： H04M1/72541 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/105 ,  H04L65/1069 ,  H04L65/4038 ,  H04M3/56 ,  H04M2242/04 ,  H04M2242/30 ,  H04W4/02 ,  H04W4/90

摘要： A method is provided for use in a communication system that includes a first terminal and an emergency center. The method includes transmitting, by a second terminal, an indicator indicating that emergency service is required for the first terminal, and automatically establishing a call session between the first terminal and the emergency center in response to the indicator.

摘要翻译： 提供了一种用于包括第一终端和紧急中心的通信系统中的方法。 该方法包括：由第二终端发送指示第一终端需要紧急服务的指示符，并且响应于指示符自动建立第一终端与紧急中心之间的呼叫会话。

公开(公告)号：US09432897B2

公开(公告)日：2016-08-30

申请号：US15046663

申请日：2016-02-18

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Ralf Keller ,  Peter Hedman ,  Fredrik Lindholm ,  Magnus Olsson

IPC分类号： H04W40/00 ,  H04W36/14 ,  H04W48/16 ,  H04W48/08 ,  H04W76/02

CPC分类号： H04W36/14 ,  H04W8/20 ,  H04W48/08 ,  H04W48/16 ,  H04W48/18 ,  H04W60/04 ,  H04W76/10 ,  H04W80/04

摘要： In a mobile network with a plurality of access networks, a control node which is controlling access of a user equipment to that one of the access networks which is currently used by the user equipment determines an access capability of the user equipment in said access network, e.g. support of voice communication over packet switched access. The control node provides an indication of the determined access capability to a subscriber database associated with the user equipment. The indication may then be retrieved from the subscriber database and be used to control termination of a connection to the user equipment.

摘要翻译： 在具有多个接入网络的移动网络中，正在控制用户设备对用户设备当前使用的接入网络中的一个的接入的控制节点确定所述接入网络中的用户设备的接入能力， 例如 支持通过分组交换接入进行语音通信。 控制节点向与用户设备相关联的用户数据库提供所确定的接入能力的指示。 然后可以从用户数据库检索指示，并用于控制到用户设备的连接的终止。

公开(公告)号：US09258700B2

公开(公告)日：2016-02-09

申请号：US14558340

申请日：2014-12-02

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Fredrik Lindholm ,  Rolf Blom

IPC分类号： G06F21/00 ,  H04L29/06 ,  H04W12/02 ,  H04W12/04

CPC分类号： H04W12/02 ,  H04L63/0435 ,  H04L63/062 ,  H04L63/0876 ,  H04L63/18 ,  H04L65/1016 ,  H04W12/04

摘要： Aspects of the present invention provide a mechanism to utilize IMS media security mechanisms in a CS network and, thereby, provide end-to-end media security in the case where the media traffic travels across both a CS network and a PS network.

公开(公告)号：US20150208224A1

公开(公告)日：2015-07-23

申请号：US14674685

申请日：2015-03-31

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Fredrik Lindholm ,  Per Öberg

IPC分类号： H04W4/22 ,  H04L29/06 ,  H04W76/00

CPC分类号： H04W4/22 ,  H04L65/1016 ,  H04L65/1069 ,  H04L65/1073 ,  H04W4/90 ,  H04W76/50

摘要： A method and apparatus for handling emergency signalling in an IP Multimedia Subsystem network. A Proxy-Call Session Control Function receives a message requesting set up of a session. The message is associated with an IP Multimedia Private Identity. The P-CSCF determines that the message relates to an emergency call. If an emergency override tag associated with the IMPI is provisioned or set at the P-CSCF, then the message is forwarding the SIP message to a Serving-Call Session Control Function (S-CSCF) for further handling. However, if an emergency override tag associated with the IMPI is not provisioned or set at the P-CSCF, the message is forwarded to an Emergency-Call Session Control Function (E-CSCF). The invention allows the P-CSCF to exercise control over the handling of emergency signalling.

摘要翻译： 一种在IP多媒体子系统网络中处理紧急信令的方法和装置。 代理呼叫会话控制功能接收请求建立会话的消息。 该消息与IP多媒体私有身份相关联。 P-CSCF确定该消息与紧急呼叫有关。 如果在P-CSCF上配置或设置与IMPI相关联的紧急覆盖标签，则消息正在将SIP消息转发到服务呼叫会话控制功能（S-CSCF）以进一步处理。 然而，如果在P-CSCF上未配置或设置与IMPI相关联的紧急覆盖标签，则该消息被转发到紧急呼叫会话控制功能（E-CSCF）。 本发明允许P-CSCF对紧急信令的处理进行控制。

公开(公告)号：US20150131532A1

公开(公告)日：2015-05-14

申请号：US14599023

申请日：2015-01-16

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Ralf Keller ,  Fredrik Lindholm ,  Gert Öster ,  Mats Stille

IPC分类号： H04W40/02 ,  H04L29/06

CPC分类号： H04W40/02 ,  H04L65/1016 ,  H04L65/1046 ,  H04L65/1069 ,  H04W8/082 ,  H04W76/10

摘要： A method of routing a session from a calling party in a serving communication network of the calling party to a called party is described. The serving communication network of the calling party is distinct from a home communication network of the calling party. The method is executed by a session routing node in the serving communication network of the calling party. In order to optimize a session routing path of signaling data of the session, the method comprises receiving from the home communication network of the calling party a session routing request requesting routing the signaling data of the session to the called party via the serving communication network of the calling party, and routing the signaling data of the session to the called party via the serving communication network of the calling party based on the received session routing request.

摘要翻译： 描述了将会话从呼叫方的服务通信网络中的呼叫方路由到被叫方的方法。 呼叫方的服务通信网络与呼叫方的家庭通信网络不同。 该方法由呼叫方的服务通信网络中的会话路由节点执行。 为了优化会话的信令数据的会话路由路径，该方法包括从呼叫方的归属通信网络接收会话路由请求，请求通过服务通信网络向被叫方路由会话的信令数据 主叫方，并且基于所接收的会话路由请求，经由主叫方的服务通信网络将会话的信令数据路由到被叫方。

公开(公告)号：US20140133455A1

公开(公告)日：2014-05-15

申请号：US13885483

申请日：2013-04-12

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Magnus Hallenstal ,  Jan Holm ,  Fredrik Lindholm

IPC分类号： H04W36/00

CPC分类号： H04W36/0022 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/1053 ,  H04L65/1069

摘要： A method of Dual Radio Access Transfer of an IP Multimedia session, IMS, in an alerting phase for the Packet Switched to Circuit Switched direction. The method comprises initiating an IMS media session towards a terminating mobile station, UE and, during a session alerting phase, making a determination at the UE that a DRVCC transfer is required from a Packet Switched, PS, to a Circuit Switched, CS, access. The method comprises sending a SIP message from the UE to a Service Centralization and Continuity Application Server, SCC-AS, over the PS access, informing the SCC-AS of the DRVCC transfer, and responding to receipt of the SIP message at the SCC-AS by sending a SIP INVITE from the SCC-AS towards a Mobile Switching Centre, MSC, serving the UE in the CS access, the INVITE including an identity of the UE as a called party identity and the STN as the calling party identity. The method further comprises responding to receipt of said INVITE at the MSC, or to receipt of associated CS signalling, by sending from the MSC to the UE a CS Setup message, whereupon the MSC is placed in a state in which it expects a CS Answer from the UE.

摘要翻译： 一种用于分组交换到电路交换方向的告警阶段的IP多媒体会话IMS的双无线电接入传送的方法。 该方法包括向终端移动站，UE发起IMS媒体会话，并且在会话告警阶段期间，在UE确定需要从分组交换，PS到电路交换，CS访问的DRVCC传送 。 该方法包括：通过PS接入，将来自UE的SIP消息发送到服务集中和连续性应用服务器SCC-AS，向SCC-AS通知DRVCC传送，以及响应于在SCC-AS接收到SIP消息， AS通过从SCC-AS向移动交换中心MSC提供SIP INVITE，MSC在CS接入中为UE提供服务，INVITE包括作为被叫方身份的UE的身份以及作为主叫方身份的STN。 该方法还包括通过从MSC向UE发送CS建立消息来响应在MSC处接收到所述INVITE或接收相关联的CS信令，由此将MSC置于其期望CS答复的状态 来自UE。

公开(公告)号：US20180146399A1

公开(公告)日：2018-05-24

申请号：US15873569

申请日：2018-01-17

申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

发明人： Fredrik Lindholm ,  Ralf Keller

IPC分类号： H04W36/00 ,  H04W88/18 ,  H04M15/00 ,  H04W92/24 ,  H04W92/04

摘要： A method and apparatus for transferring a session from a packet switched access network to a circuit switched access network. A Mobility Management Entity receives a service type indicator from a gateway node. The service type indicator indicates a type of service for the session, and is associated with bearers used for the session. The Mobility Management Entity subsequently receives, from an eNodeB, an indication that the session is to be transferred from the packet switched network to the circuit switched access network. The Mobility Management Entity determines the bearers associated with the session using the service type indicator, and initiates transfer of the session using those bearers. This ensures that the correct bearers are transferred regardless of whether or not identifiers such as QCI values have been ascribed to other types of service.