公开(公告)号：US20100246523A1

公开(公告)日：2010-09-30

申请号：US12746392

申请日：2007-12-04

申请人： Bo Aström ,  Carl-Henrik Hagenfeldt ,  Alf Heidermark ,  Ralf Keller ,  Fredrik Lindholm

发明人： Bo Aström ,  Carl-Henrik Hagenfeldt ,  Alf Heidermark ,  Ralf Keller ,  Fredrik Lindholm

IPC分类号： H04W72/04

CPC分类号： H04L65/1016 ,  H04L65/104 ,  H04L65/1083

摘要： A node in an IMS network receives circuit switched signalling relating to a communication session sent from a terminal over a circuit switched access network, and also receives packet switched signalling relating to the communication session sent from the terminal over a packet switched access network. The packet switched signalling comprises an identifier, and the node uses the identifier to correlate the circuit switched signalling with the packet switched signalling. This allows terminals using ICS to send signalling over both packet switched and circuit switched access networks, and a receiving node to correlate those signals.

摘要翻译： IMS网络中的节点接收与通过电路交换接入网络从终端发送的通信会话有关的电路交换信令，并且还接收与通过分组交换接入网络从终端发送的通信会话有关的分组交换信令。 分组交换信令包括标识符，并且节点使用标识符将电路交换信令与分组交换信令相关联。 这允许使用ICS的终端在分组交换和电路交换接入网络上发送信令，以及接收节点将这些信号相关联。

公开(公告)号：US09717023B2

公开(公告)日：2017-07-25

申请号：US13382187

申请日：2010-07-07

申请人： Ralf Keller ,  Magnus Hallenstål ,  Fredrik Lindholm ,  Magnus Olsson

发明人： Ralf Keller ,  Magnus Hallenstål ,  Fredrik Lindholm ,  Magnus Olsson

IPC分类号： H04W36/00 ,  H04W80/10 ,  H04L29/06

CPC分类号： H04W36/0022 ,  H04L65/1016 ,  H04L65/1083 ,  H04W36/0011 ,  H04W80/10

摘要： A method for improving session continuity for a terminal (204′) in a serving communication network (202′) distinct from a home communication network (200′) of the terminal (204′), wherein the serving communication network (202′) comprises a session transfer node (208′) for transferring sessions each comprising signaling data and media data from a first access network (210′) of the serving communication network (202′) to a second access network (212′) of the serving communication network (202′) comprises the following: Routing signaling data of a session of the terminal (204′) between the first access network (210′) and the home communication network (200′) via the session transfer node (208′) in the serving communication network (202′), receiving a session transfer request requesting the transfer of the session from the first access network (210′) to the second access network (212′) for the terminal (204′), and transferring the session from the first access network (210′) to the second access network (212′), and routing the signaling data of the session of the terminal (204′) between the second access network (210′) and the home communication network (200′) via the session transfer node (208′).

公开(公告)号：US09374761B2

公开(公告)日：2016-06-21

申请号：US14116107

申请日：2012-04-13

申请人： Ralf Keller ,  Fredrik Alriksson ,  Fredrik Lindholm ,  Karl-Peter Ranke

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

IPC分类号： H04W40/00 ,  H04L12/66 ,  H04W40/02 ,  H04W76/02 ,  H04L12/725 ,  H04W68/00 ,  H04W92/24

CPC分类号： H04W40/02 ,  H04L45/306 ,  H04W68/00 ,  H04W76/10 ,  H04W92/24

摘要： A method for routing a terminating call to a user equipment via a first control node for controlling the call, wherein the user equipment is attached to a second control node which is adapted to provide routing information. The method comprises determining, by the second control node, if the user equipment is attached to the second control node over a third control node, wherein the attachment over the third control node indicates that call control shall be performed by a specific service domain. Based on the determining, the provided routing information is selected by the second control node, wherein the routing information indicates to the first control node if the further call establishment to the user equipment is controlled either by the second control node or by the third control node. The call is then routed, by the first control node, according to the selected routing information.

摘要翻译： 一种用于经由用于控制呼叫的第一控制节点将终接呼叫路由到用户设备的方法，其中所述用户设备附接到适于提供路由信息的第二控制节点。 所述方法包括由所述第二控制节点确定所述用户设备是否经由第三控制节点附加到所述第二控制节点，其中，所述第三控制节点上的附件指示呼叫控制应由特定服务域执行。 基于确定，所提供的路由信息​​由第二控制节点选择，其中路由信息向第一控制节点指示对用户设备的进一步呼叫建立是由第二控制节点还是由第三控制节点 。 该呼叫然后由第一控制节点根据选择的路由信息​​进行路由。

公开(公告)号：US20140219249A1

公开(公告)日：2014-08-07

申请号：US14240094

申请日：2011-08-26

申请人： Ralf Keller ,  Fredrik Lindholm

发明人： Ralf Keller ,  Fredrik Lindholm

IPC分类号： H04W36/00

CPC分类号： H04W36/0022 ,  H04W8/06 ,  H04W8/26 ,  H04W60/04

摘要： A method of informing a control node in a serving communication network of address information about a session anchor node in the serving communication network is described. The control node is accessible by a terminal via a circuit switched access of the serving communication network. The serving communication network of the terminal is different from an internet protocol based home communication network of the terminal. The method is executed by a session anchor node in the home communication network. The method includes receiving an update request for the control node being updated of address information about the session anchor node in the serving communication network, receiving address information about the session anchor node in the serving communication network, and sending the received address information based on the received update request.

摘要翻译： 描述了在服务通信网络中通知服务通信网络中关于会话锚节点的地址信息的方法。 控制节点可以由终端通过服务通信网络的电路交换接入来访问。 终端的服务通信网络与终端的基于因特网协议的家庭通信网络不同。 该方法由家庭通信网络中的会话锚节点执行。 该方法包括接收正在更新关于服务通信网络中的会话锚节点的地址信息的控制节点的更新请求，接收关于服务通信网络中的会话锚节点的地址信息，以及基于 收到更新请求。

公开(公告)号：US20130308632A1

公开(公告)日：2013-11-21

申请号：US13981533

申请日：2011-06-27

申请人： Ralf Keller ,  Afshin Abtin ,  Fredrik Lindholm ,  David Castellanos Zamora ,  Juan Manuel Fernandez Galmes ,  Antonio Alonso Alarcon

发明人： Ralf Keller ,  Afshin Abtin ,  Fredrik Lindholm ,  David Castellanos Zamora ,  Juan Manuel Fernandez Galmes ,  Antonio Alonso Alarcon

IPC分类号： H04L12/66

CPC分类号： H04L12/66 ,  H04L65/1069 ,  H04W76/10

摘要： A subscriber server routes a terminating call in a network that includes a circuit switched (CS) network, a packet switched (PS) network, and an IP Multimedia Subsystem (IMS). The server receives a request for routing information in relation to the terminating call from a CS node in the CS network. A determination is made at server based on whether a UE associated with the terminating call is registered in the IMS and the UE has access to the PS network. The server instructs the CS node to route the terminating call in the CS network when the UE is not registered in the IMS or when the UE does not have access to the PS network. The server instructs the CS node to send the terminating call to the IMS for handling when the UE is registered in the IMS and when the UE has access to the PS network.

摘要翻译： 订户服务器在包括电路交换（CS）网络，分组交换（PS）网络和IP多媒体子系统（IMS））的网络中路由终接呼叫。 服务器从CS网络中的CS节点接收到关于终止呼叫的路由信息​​的请求。 在服务器上确定与终端呼叫相关联的UE是否登记在IMS中，并且UE有权访问PS网络。 当UE未在IMS中注册时或者当UE不能访问PS网络时，服务器指示CS节点将呼叫转接到CS网络中。 服务器指示CS节点向UE发送终止呼叫以进行处理，以便UE在IMS中注册时以及UE何时可以访问PS网络。

公开(公告)号：US20130272194A1

公开(公告)日：2013-10-17

申请号：US13459520

申请日：2012-04-30

申请人： Ralf Keller ,  Fredrik Lindholm ,  Karl-Peter Ranke

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

IPC分类号： H04W40/00 ,  H04L12/50 ,  H04L12/56

CPC分类号： H04W36/08 ,  H04W36/0022 ,  H04W72/048 ,  H04W76/10 ,  H04W76/16 ,  H04W88/16

摘要： A method is provided of performing a session transfer with Single Radio Voice Call Continuity, SRVCC, from a Packet Switched, PS, access to a Circuit Switched, CS, access of a telecommunications session that has been established over the PS access via an IP Multimedia Subsystem, IMS, network. A request for the transfer of the session is received. An indication of a voice codec that is currently being used for the session is obtained from the IMS network. Allocation of resources for the session in the CS access network is initiated, including specifying the voice codec to be used based on the obtained codec indication. Transfer of the session to the CS access is initiated so that the session continues with use of the specified voice codec.

摘要翻译： 提供了一种方法，用于通过IP多媒体通过PS接入建立的电信会话的接入，执行从分组交换的PS单播无线语音呼叫连续性SRVCC的会话传送 子系统，IMS，网络。 接收会议转移请求。 从IMS网络获得当前用于会话的语音编解码器的指示。 启动CS接入网络中会话资源的分配，包括根据获得的编解码器指示指定要使用的语音编解码器。 启动会话到CS访问的传送，以便会话继续使用指定的语音编解码器。

公开(公告)号：US20130195076A1

公开(公告)日：2013-08-01

申请号：US13392388

申请日：2012-01-27

申请人： Ralf Keller ,  Fredrik Lindholm

发明人： Ralf Keller ,  Fredrik Lindholm

IPC分类号： H04W4/00

CPC分类号： H04W36/0022 ,  H04W4/90

摘要： A method is provided of performing a handover with SRVCC to a target PS access network of an emergency call to a PSAP from a UE accessing a CS access network. The method includes sending a handover request from the CS access network towards an IMS network to transfer the emergency call. A CS to PS emergency handover command is sent to the UE, including an emergency STN identifying an access transfer control function. The UE sends a SIP INVITE to establish an emergency IMS session over the PS access network. The SIP INVITE includes the emergency STN so that the INVITE is routed to the access transfer control function. The emergency call sent over the CS access network with the emergency IMS session are correlated and the emergency call is switched to the emergency IMS session over the PS access network to complete the handover.

摘要翻译： 提供了一种方法，其中，SRVCC向接入CS接入网的UE的PSAP的紧急呼叫的目标PS接入网进行切换。 该方法包括从CS接入网向IMS网络发送切换请求以传送紧急呼叫。 CS到PS紧急切换命令被发送到UE，包括识别访问转移控制功能的紧急STN。 UE发送SIP邀请，通过PS接入网建立紧急IMS会话。 SIP INVITE包括紧急STN，使INVITE被路由到访问传输控制功能。 通过CS接入网与紧急IMS会话发送的紧急呼叫相关，紧急呼叫通过PS接入网切换到紧急IMS会话，完成切换。

公开(公告)号：US20130195075A1

公开(公告)日：2013-08-01

申请号：US13392366

申请日：2012-01-27

申请人： Ralf Keller ,  Fredrik Lindholm

发明人： Ralf Keller ,  Fredrik Lindholm

IPC分类号： H04W36/24

CPC分类号： H04W36/0022 ,  H04W76/36

摘要： 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 handover 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.

摘要翻译： 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网发送切换请求，以传送优先呼叫。 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。

公开(公告)号：US20130194966A1

公开(公告)日：2013-08-01

申请号：US13577474

申请日：2010-02-08

申请人： Jian Wang ,  Ralf Keller ,  Fredrik Lindholm ,  Daniel Mateos Perez ,  Santiago Muñoz Muñoz

发明人： Jian Wang ,  Ralf Keller ,  Fredrik Lindholm ,  Daniel Mateos Perez ,  Santiago Muñoz Muñoz

IPC分类号： H04L29/06

CPC分类号： H04L51/10 ,  H04L41/12 ,  H04L51/38 ,  H04L65/1016 ,  H04L65/1073 ,  H04L69/08 ,  H04W48/18 ,  H04W60/005 ,  H04W88/14 ,  H04W92/24

摘要： The invention related to handling core network entities of a radio core communications network comprising a first network entity and a second network entity. The said second network entity differs from the first network entity in that it is capable of processing interworking between messages exchanged with said radio core communications network and messages exchanged with an IP multimedia subsystem. In other words, one network entity is capable of performing inter-working while the other one not. The first and/or second network entities are provided (S200) with configuration information indicating a relationship between the two network entities. The invention then foreseen routing (S300) messages relating to calls established between the at least one user terminal attached to the entity non capable of inter-working and a further user terminal attached to said IP multimedia subsystem according to said configuration information.

摘要翻译： 本发明涉及处理包括第一网络实体和第二网络实体的无线电核心通信网络的核心网络实体。 所述第二网络实体与第一网络实体不同之处在于，其能够处理与所述无线电核心通信网络交换的消息和与IP多媒体子系统交换的消息之间的互通。 换句话说，一个网络实体能够执行互通，而另一个不是。 提供第一和/或第二网络实体（S200），配置信息指示两个网络实体之间的关系。 然后，本发明预测与根据所述配置信息附加到不具有互通能力的实体的至少一个用户终端和附加到所述IP多媒体子系统的另外的用户终端之间建立的呼叫相关的路由（S300）消息。

公开(公告)号：US20110306321A1

公开(公告)日：2011-12-15

申请号：US13128544

申请日：2009-11-09

申请人： Ralf Keller ,  Fredrik Lindholm ,  Magnus Olsson ,  Jian Wang

发明人： Ralf Keller ,  Fredrik Lindholm ,  Magnus Olsson ,  Jian Wang

IPC分类号： H04W12/08

CPC分类号： H04W48/18 ,  H04L65/1016 ,  H04L65/1073 ,  H04W92/24

摘要： A method of registering a subscriber in an IP Multimedia Subsystem (IMS) is provided, wherein the method is executed by a call control node (800), wherein the method comprises receiving (402) an access request of the subscriber for circuit switched accessing the IMS, the access request being received via an access, determining (404) an access type of the access, and sending (406) a registration request for circuit switched registering the subscriber in the IMS depending on the determined access type.

摘要翻译： 提供了一种在IP多媒体子系统（IMS）中注册用户的方法，其中所述方法由呼叫控制节点（800）执行，其中所述方法包括：接收（402）所述用户的接入请求，用于电路交换接入 IMS，通过接入接收访问请求，确定（404）访问的访问类型，以及根据确定的访问类型发送（406）电路交换注册用户在IMS中的注册请求。