Abstract: In a mobile communication network, data traffic is mapped to a non-guaranteed bit rate bearer (50, 60) established between a gateway node (100) and a mobile terminal (200). The non-guaranteed bit rate bearer comprises a first sub-bearer (51, 61) between the mobile terminal (200) and an access node (120), a second sub-bearer (52, 62) between the access node (120) and an intermediate gateway node (110), and a third sub-bearer (53, 63) between the intermediate gateway node (110) and the gateway node (100). Releasing of the third sub-bearer (53, 63) is controlled on the basis of the first sub-bearer (51, 61) and/or the second sub-bearer (52, 62) being released.

Abstract: The present invention relates to methods and arrangements in mobile radio telecommunications for enabling access to Circuit Switched (CS) services for a user equipment (UE) that is connected to a LTE/SAE (Long Term Evolution/System Architecture Evolution) network. The UE's current position is stored in a LTE position format in the LTE network or in the SAE network. The invention provides steps and means for transforming the UE's position in LTE format to position information in CS format for the UE, steps and means for registering the UE in the CS network using said transformed position information, and steps and means for establishing access to CS services provided by said CS network.

Abstract: A method for restoring connectivity between a node in an IP Multimedia Subsystem, IMS, network, and a User Equipment, UE. The UE is associated with a Proxy Call Session Control Function node, P-CSCF, of said IMS network, and with at least one control node of a packet access network, through which the UE connects to the IMS network. The method allows for restoring the connectivity of the UE to an IMS network node after said IMS node has failed to establish a communication to said UE via said P-CSCF node.

Abstract: A method and apparatus for allocating an identifier to a terminal in a communications network. A core network controlling node, such as a Mobility Management Entity (MME) receives an International Mobile Subscriber Identity (IMSI) and an International Mobile Equipment Identity (IMEI) from the terminal. Subscription information is determined using both the IMSI and the IMEI. A temporary identifier that can be used to identify the terminal is then allocated to the subscription information.

Abstract: A method and apparatus for providing both Mobile Terminated, MT, and Mobile Originated, MO, circuit switched (CS) services such as Short Message Service, SMS, services in networks utilizing CS Fallback and CSoLTE-I architectures. An extended SGs interface referred to as SGs+ is implemented between a Mobility Management Entity, MME, in an SAE core network and a Mobile Switching Center Server, MSC-S. The SGs+ interface supports transmission of upper layer CS packet data units while utilizing either connectionless or connection-oriented Signaling Connection Control Part, SCCP, operation. The non access stratum, NAS, signaling support between the User Equipment, UE, and the MME is extended to provide support for both MT SMS and MO SMS service.

Abstract: A method and apparatus for providing both Mobile Terminated, MT, and Mobile Originated, MO, circuit switched (CS) services such as Short Message Service, SMS, services in networks utilizing CS Fallback and CSoLTE-I architectures. An extended SGs interface referred to as SGs+ is implemented between a Mobility Management Entity, MME, in an SAE core network and a Mobile Switching Center Server, MSC-S. The SGs+ interface supports transmission of upper layer CS packet data units while utilizing either connectionless or connection-oriented Signaling Connection Control Part, SCCP, operation. The non access stratum, NAS, signaling support between the User Equipment, UE, and the MME is extended to provide support for both MT SMS and MO SMS service.

Abstract: The invention relates to a method for handing over a call of a mobile entity that is circuit switched attached via a Mobile Switching Center MSC (120) to an IP Multimedia Subsystem IMS, wherein the mobile entity (100) is registered at the IMS. According to the invention, either the MSC or a media gateway act as application function towards a PCRF with the correct IP address of the media gateway.

Abstract: A method and various devices (e.g., MME, GANCs, UE) are described herein for preventing a CS domain call from being dropped during a CSoLTEvGAN towards GERAN/UTRAN handover procedure.

Abstract: A method for a call control node (MSC Server) enhanced for Single Radio Voice Call Continuity (SRVCC) allowing for a session transfer of a call involving a User Equipment (UE) of a handover party from a circuit switched (CS) access towards a target packet switched (PS) access is provided, the call involving said handover party and another party, said call being anchored in an Service Centralization and Continuity Application Server (SCC AS) of the IP-Multimedia-Subsystem (IMS), the method comprising the steps of receiving (202) an indication that the User Equipment (UE) is SRVCC capable, receiving (204) an indication of an address and port the UE is going to use for speech media over PS, providing (206) the UE with an indication of the address and port to be used towards the other party (remote end), deciding (208) to perform a SRVCC from CS access to said target PS access, sending (210) a relocation request for a bearer to a respective mobility management node (SGSN/MME), including said address and said port

Abstract: Embodiments of the present invention described herein include a Mobile Management Entity and a method that receive a handoff request for an active voice session of a terminal which is leaving an E-UTRAN to a GERAN/UTRAN and then determine if the handoff request is applicable to a SRVCC procedure or a CSoLTEvGAN procedure.

Abstract: A method and a mobile services switching centre of providing differentiated services in a communications network. The method comprises receiving in a mobile services switching centre an indication message from a first radio access network, said message indicating a radio access network type to which a called communication apparatus of a terminating communication session is connected, in response to the indication message: accessing differentiated service information associated with the radio access network type of the terminating communication session, and sending the differentiated service information to be applied for service differentiation by a second access network of calling communication apparatus.

Abstract: A method and a mobile services switching center of providing differentiated services in a communications network. The method comprises receiving in a mobile services switching center an indication message from a first radio access network, said message indicating a radio access network type to which a called communication apparatus of a terminating communication session is connected, in response to the indication message: accessing differentiated service information associated with the radio access network type of the terminating communication session, and sending the differentiated service information to be applied for service differentiation by a second access network of calling communication apparatus.

Abstract: The invention relates to a method of establishing a session between client user terminals accessing IP Multimedia Subsystem, IMS, networks. At least one of the IMS networks implements the use of Quality of Service, QoS, preconditions, and at least one of the client user terminals does not use QoS preconditions. The method includes receiving, at an inter-working function, IWF located in one of the IMS networks, an IMS session initiation request originated by an originating client, the request indicating a terminating client for the session. A decision is made, based on the session initiation request, that one of the originating client and the terminating client is not using QoS preconditions. A set of QoS preconditions is inserted into a procedure for establishing the IMS session on behalf of the client that is not using QoS preconditions. Session establishment is completed only after QoS resources complying with the set of QoS preconditions have been established.

Abstract: A method and system wherein a Voice over LTE via Generic Access (VoLGA) Access Network Controller (VANC)1 upon receiving a REGISTER and REGISTER UPDATE message from the UE1 notifies a Hand Over Selection Function node (HOSF) that a user equipment (UE) is registered in the VANC. This will only be done if the HOSF has not theretofore been notified.

Abstract: The invention provides a method of enabling the service level networks (e.g. CSoLTE or IMS CN) to provide location-dependent services based on a circuit switched domain from a service level network to a mobile station communicating with a cell in a radio access network that utilises a packet switched domain. The method includes providing cell location information relating to the location of the cell; determining a Service Area Identifier based on the cell location information; and providing the Service Area Identifier to the service level network. The Service Area Identifier is then used for different location based services and applications in the service level network nodes.

Abstract: A method, server, and terminal for selecting an access domain for sending information between a wireless terminal and a core network, wherein sessions between the wireless terminal and the core network are established and controlled using an IP Multimedia Subsystem (IMS). A database maintained in the IMS stores information regarding real-time packet-switched service capabilities of a plurality of access domains. The database is interrogated based upon currently used and/or available access domains. An access domain is selected for use by the wireless terminal based upon the results of the interrogation.

Abstract: In a mobile communication network, data traffic is mapped to a non-guaranteed bit rate bearer (50, 60) established between a gateway node (100) and a mobile terminal (200). The non-guaranteed bit rate bearer comprises a first sub-bearer (51, 61) between the mobile terminal (200) and an access node (120), a second sub-bearer (52, 62) between the access node (120) and an intermediate gateway node (110), and a third sub-bearer (53, 63) between the intermediate gateway node (110) and the gateway node (100). Releasing of the third sub-bearer (53, 63) is controlled on the basis of the first sub-bearer (51, 61) and/or the second sub-bearer (52, 62) being released.

Abstract: Systems and methods according to these exemplary embodiments provide for methods and systems for handling off user equipment between a second generation (2G) radio access network (RAN), e.g., a Global System for Mobile communications (GSM) network, and a long term evolution (LTE) network.

Abstract: The invention relates to a method for handing over a call of a mobile entity that is circuit switched attached via a NMobile Switching Center MSC (120) to an IP Multimedia Subsystem IMS, wherein the mobile entity (100) is registered at the IMS. According to the invention, either the MSC or a media gateway act as application function towards a PCRF with the correct IP address of the media gateway.

Abstract: The present invention relates to a method for registering a mobile terminal in a mobile radio communication system. The mobile radio communication system comprises at least one mobile radio communication core network and at least one IMS core network. The mobile terminal is located within a radio access network associated to the at least one mobile radio communication core network and comprises at least a first and a second periodic registration timer for respectively registering the mobile terminal with the at least one mobile radio communication core network and the at least one IMS core network upon their respective expiry. The method comprises the step of registering the mobile terminal with the mobile radio communication core network and with the at least one second network as any one of the at least first and second periodic registration timers, which is first to expire, expires.