Abstract: In a LTE network user devices can access voice application service via Voice over LTE (VoLTE) and Voice over WiFi (VoWiFi). To detect faults in the data link associated with an evolved packet data gateway for providing access by the user device to the LTE network from a non-trusted network which will affect VoWiFi capability, a packet data gateway monitors the status of ePDG and if a fault is detected, the user device is notified that it should connect to voice services via VoLTE.

Abstract: A method of managing traffic flow through a multi-node network, the multi-node network interlinking a first mobile network and a second mobile network, the method including, when a subscriber user equipment entity that has as a home network the first mobile network and that is operating in the second mobile network attempts to establish a connection to a correspondent user equipment entity: communicating a connection request message from the second network to the first network over a first route via a set of nodes of the multi-node network; at least one of the nodes of the set: identifying a candidate alternative route between nodes of the multi-node network for at least part of a connection between the subscriber user equipment entity and the correspondent user equipment entity; and transmitting an indication of the candidate alternative route to a controller; and the controller selecting, in accordance with predetermined criteria, one of the first route and the at least one candidate alternative route and c

Abstract: This disclosure relates to a method of operating a management node in a cellular telecommunications network, the cellular telecommunications network further including a User Equipment (UE) and a first and second base station, wherein the UE is connected to the first base station by a first connection and to the second base station by a second connection, and the first and second connection relate to a first and second subscription, respectively, the method including detecting a first home network identifier of the first connection; detecting a first network operator identifier of the first base station; determining that a first home network identifier of the first connection is different to the first network operator identifier of the first base station; determining a preferred partner network associated with the first home network identifier; and initiating a transfer of the first connection to the preferred partner network.

Abstract: A mobile device capable of connecting to a voice service using Voice over LTE (VoLTE) via a cellular network and Voice over Wi-Fi (VoWiFi) via a wireless local area network is connected to VoWiFi and arranged to receive notifications from a wireless access point when the voice service via VoWiFi is disrupted and to disconnect from VoWiFi and connect to VoLTE to maintain the voice service. The mobile device is operable to test the connection to the cellular network and if the cellular network connection is insufficient to support VoLTE, the mobile device ignored the notification and remains connected to VoWiFi.

Abstract: This disclosure relates to a method of operating a management node in a cellular telecommunications network, the cellular telecommunications network further including a User Equipment (UE), and a first and second base station, wherein the UE is connected to the first base station by a first connection and to the second base station by a second connection, and the first and second connection relate to a first and second subscription respectively, the method including detecting a first home network identifier of the first connection; detecting a first network operator identifier of the first base station; determining that a first home network identifier of the first connection is different to the first network operator identifier of the first base station; determining a preferred partner network associated with the first home network identifier; and initiating a transfer of the first connection to the preferred partner network.

Abstract: This disclosure invention relates to a method of operating a network node in a cellular telecommunications network, wherein the cellular telecommunications network further includes a first base station and a first User Equipment (UE), and the first UE is connected to the first base station by a first and second connection having resources associated with a first and second subscription respectively, the method including determining that the first connection and second connection relate to the first and second subscription respectively; determining that the first connection and second connection relate to the first UE; monitoring a first resource usage of one or both of the first and second connections with the first UE; and initiating a handover of one or both of the first and second connections based on the first resource usage.

Abstract: A method of operating a mobile device to access a voice service available at a cellular network, the mobile device having a cellular network interface for accessing the voice service via a cellular network base station and a non-cellular local area network interface for accessing the voice service via a wireless routing device and a cellular network gateway, the method including connecting to a non-cellular wireless local area network of the wireless routing device; sending a request to the cellular network gateway to access the voice service; receiving a request from a voice service access controller, for any observed wireless local area networks and cellular networks; generating a list of any observed non-cellular wireless local area networks and observed cellular networks; sending said list to the voice service access controller via the non-cellular local area network interface; receiving an identity of one of the listed networks from the voice service access controller, the identified network representing

Abstract: A method of operating a network gateway in a cellular network to control access of at least one mobile device to a voice service accessible via the cellular network, the mobile device being connected to the network gateway via a wireless access router and wide area network, WAN, the method including receiving a request from the mobile device to access the voice service; measuring performance metrics for a non-cellular wireless network link to the mobile device; requesting observed network information from the mobile device; and comparing the quality of the non-cellular wireless network link to the mobile device against the respective quality of at least one observed network; if the quality of the non-cellular wireless network link is greater than the quality of an available observed network, allowing the request to proceed to the cellular network; and if the quality of at least one of the observed networks is higher than the current non-cellular wireless network link, rejecting the voice service request of th

Abstract: A method of operating a wireless routing device to control access to a voice communication service by a mobile device connected to a wireless local area network (WLAN) of the wireless routing device, the mobile device having a cellular network interface and a non-cellular wireless network interface, the method including identifying a request from the mobile device to a cellular network gateway of the cellular network for access to the voice communication service; performing a process prior to forwarding the request to the cellular network gateway comprising: calculating a quality score for a non-cellular wireless link between the mobile device and the cellular network gateway for accessing the voice communication service; requesting observed network information from the mobile device; and comparing the quality of the non-cellular wireless network link against the respective quality of at least one alternative network observed by the mobile device; and if the quality of the non-cellular wireless network link i

Abstract: An application deployment manager 8 associated with an associated Mobile Edge Computing server receives a notification (step 222) of a newly-attached terminal, and queries a database 60 (step 223) to identify any computing applications the terminal is associated with, and interrogates an application platform 12 and an update record 72 to determine whether the current version of each required service is currently hosted on the platform 12 (steps 225, 250). The application deployment manager 8 then retrieves any programme data not already hosted on the application management system (step 227) for installation ready for use by the terminal 2.

Abstract: A mobile device capable of connecting to a voice service using Voice over LTE (VoLTE) via a cellular network and Voice over Wi-Fi (VoWiFi) via a wireless local area network is connected to VoWiFi and arranged to receive notifications from a wireless access point when the voice service via VoWiFi is disrupted and to disconnect from VoWiFi and connect to VoLTE to maintain the voice service. The mobile device is operable to test the connection to the cellular network and if the cellular network connection is insufficient to support VoLTE, the mobile device ignored the notification and remains connected to VoWiFi.

Abstract: A telecommunications mobility management system is arranged to allocate a mobile unit to different switching routes for different classes of service, for example to allow services capable of operation over packet-switched and circuit-switched to be managed separately. Separate location updates are transmitted to a register, and flagged for selective retrieval by a routing function when an incoming connection request is made, the appropriate switch ID being selected according to the class of service to which the connection request relates.

Abstract: A telecommunications mobility management system is arranged to allocate a mobile unit to different switching routes for different classes of service, for example to allow services capable of operation over packet-switched and circuit-switched to be managed separately. Separate location updates are transmitted to a register, and flagged for selective retrieval by a routing function when an incoming connection request is made, the appropriate switch ID being selected according to the class of service to which the connection request relates.

Abstract: An application deployment manager 8 associated with an associated Mobile Edge Computing server receives a notification (step 222) of a newly-attached terminal, and queries a database 60 (step 223) to identify any computing applications the terminal is associated with, and interrogates an application platform 12 and an update record 72 to determine whether the current version of each required service is currently hosted on the platform 12 (steps 225, 250). The application deployment manager 8 then retrieves any programme data not already hosted on the application management system (step 227) for installation ready for use by the terminal 2.

Abstract: A mobile terminal (11) transmits data to a base station (1) of a first network relating to neighbour base stations (13) of a second network. The base station (1) transmits the neighbour data to a network management processor (12) controlling the mobile communications system, which maintains a mapping data store (27) associating the base station with the neighbour base stations. The mapping facilitates a dual attachment process which allows connection of terminals to both networks, thus facilitating transfer of connection between networks.

Abstract: A telecommunications mobility management system is arranged to allocate a mobile unit to different switching routes for different classes of service, for example to allow services capable of operation over packet-switched and circuit-switched to be managed separately. Separate location updates are transmitted to a register, and flagged for selective retrieval by a routing function when an incoming connection request is made, the appropriate switch ID being selected according to the class of service to which the connection request relates.

Abstract: A telecommunications mobility management system is arranged to allocate a mobile unit to different switching routes for different classes of service, for example to allow services capable of operation over packet-switched and circuit-switched to be managed separately. Separate location updates are transmitted to a register, and flagged for selective retrieval by a routing function when an incoming connection request is made, the appropriate switch ID being selected according to the class of service to which the connection request relates.

Abstract: A handover process for enabling a user terminal to transfer a connect to a network from a route by way of a source access node to a route by way of a target access node, where the nodes are controlled by different respective control systems is initiated by establishing a link between the terminal and the target node and a data forwarding tunnel between the access nodes to allow data transmitted over a link from the network to the source node to continue to be transmitted to the terminal. The backhaul connection is then re-routed by co-ordination between the access control systems. The source node transmits a flag to the target node which identifies its respective access control system. This flag is forwarded by the target node to its respective access control system to allow it to set up a data link over which relocation instructions can be coordinated to set up a data link between the network and the target node, and to close the data link between the network and the source node.

Abstract: A handover process for enabling a user terminal to transfer a connect to a network from a route by way of a source access node to a route by way of a target access node, where the nodes are controlled by different respective control systems is initiated by establishing a link between the terminal and the target node and a data forwarding tunnel between the access nodes to allow data transmitted over a link from the network to the source node to continue to be transmitted to the terminal. The backhaul connection is then re-routed by co-ordination between the access control systems. The source node transmits a flag to the target node which identifies its respective access control system. This flag is forwarded by the target node to its respective access control system to allow it to set up a data link over which relocation instructions can be coordinated to set up a data link between the network and the target node, and to close the data link between the network and the source node.