Abstract: A technique is described allowing an IMS enabled network to terminate a communication request directed towards a user device in a well-defined way, even for cases in which multiple registrations for IMS are present that are related to the same physical user device. A method embodiment of this technique comprises registering multiple user agents for one and the same user device, wherein from each user agent contact information including a device ID identifying the user device is provided; and processing a communication request directed towards the user device, the processing comprising identifying multiple identical device IDs of registered contacts, and treating the communication request according to a predetermined handling scheme related to the detection of identical device IDs.

Abstract: A method for initiating handover of a circuit switched service using a circuit switched bearer of a mobile station from a circuit switched to a packet switched domain in a mobile communications network, the mobile communications network comprising a radio network and a core network, the radio network comprising a controlling node, the mobile station being o allocated an IP address and access port, said method comprising the controlling node communicating to the core network a relocation/handover required message; said relocation/handover required message comprising an indication of the IP address and access port allocated to the mobile station.

Abstract: A technique is described allowing an IMS enabled network to terminate a communication request directed towards a user device in a well-defined way, even for cases in which multiple registrations for IMS are present that are related to the same physical user device. A method embodiment of this technique comprises registering multiple user agents for one and the same user device, wherein from each user agent contact information including a device ID identifying the user device is provided; and processing a communication request directed towards the user device, the processing comprising identifying multiple identical device IDs of registered contacts, and treating the communication request according to a predetermined handling scheme related to the detection of identical device IDs.

Abstract: A technique is described allowing an IMS enabled network to terminate a communication request directed towards a user device in a well-defined way, even for cases in which multiple registrations for IMS are present that are related to the same physical user device. A method embodiment of this technique comprises registering multiple user agents for one and the same user device, wherein from each user agent contact information including a device ID identifying the user device is provided; and processing a communication request directed towards the user device, the processing comprising identifying multiple identical device IDs of registered contacts, and treating the communication request according to a predetermined handling scheme related to the detection of identical device IDs.

Abstract: A method and node in a communication network for facilitating access by a client terminal to an IMS service from a non-Session Initiation Protocol (non-SIP) compliant access network such as a circuit-switched network. The node receives a request from the client terminal and in response, allocates to the terminal, a Terminal Adapter from a plurality of Terminal Adapters. The node then sends a message to the client terminal reporting the address of the allocated Terminal Adapter.

Abstract: A method of performing CS (Circuit Switched) services over a LTE (Long Term Evolution) access comprises: performing CM (Connection Management) procedures via an AGW (Access Gateway); and performing MM (Mobility Management) procedures via a MME (Mobility Management Entity).

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 of performing CS (Circuit Switched) services over a LTE (Long Term Evolution) access comprises: performing CM (Connection Management) procedures via an AGW (Access Gateway); and performing MM (Mobility Management) procedures via a MME (Mobility Management Entity).

Abstract: A method for initiating handover of a circuit switched service using a circuit switched bearer of a mobile station from a circuit switched to a packet switched domain in a mobile communications network, the mobile communications network comprising a radio network and a core network, the radio network comprising a controlling node, the mobile station being o allocated an IP address and access port, said method comprising the controlling node communicating to the core network a relocation/handover required message; said relocation/handover required message comprising an indication of the IP address and access port allocated to the mobile station.

Abstract: A method for initiating handover of a circuit switched service using a packet switched bearer of a mobile station (31) from a packet switched domain to a circuit switched MS eNodeB PMSC PCRF domain in a mobile communications network comprising a radio network and a core network, said method comprising communicating to the mobile station that a circuit switched handover procedure is to be initiated, said communication comprising sending a circuit switched handover required message to the mobile station, said circuit switched handover required message comprising identification of a circuit switched handover target cell; said mobile station sending a circuit switched handover required message to the core network, said handover-required message comprising identification of the handover target cell.

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 and apparatus are provided for providing periodic location updates to a MSC-S in a CS core network providing CS services for a terminal attached to a PS cell of a radio access network such as an LTE radio access network. The method comprises sending periodic location updates from a PCSC in the core network to the MSC-S for as long as the terminal is registered with the PCSC or the PCSC receives location updates from the terminal.

Abstract: A method and node in a communication network for facilitating access by a client terminal to an IMS service from a non-Session Initiation Protocol (non-SIP) compliant access network such as a circuit-switched network. The node receives a request from the client terminal and in response, allocates to the terminal, a Terminal Adapter from a plurality of Terminal Adapters. The node then sends a message to the client terminal reporting the address of the allocated Terminal Adapter.

Abstract: A technique is described allowing an IMS enabled network to terminate a communication request directed towards a user device in a well-defined way, even for cases in which multiple registrations for IMS are present that are related to the same physical user device. A method embodiment of this technique comprises registering multiple user agents for one and the same user device, wherein from each user agent contact information including a device ID identifying the user device is provided; and processing a communication request directed towards the user device, the processing comprising identifying multiple identical device IDs of registered contacts, and treating the communication request according to a predetermined handling scheme related to the detection of identical device IDs.

Abstract: A roaming mechanism enabling a mobile station to roam between a first data packet network utilizing a Mobile IP Method (MIM) and a second data packet network utilizing a Personal Digital Cellular Mobility Method (PMM) is disclosed. A foreign agent (FA) is introduced into the PMM network for enabling a mobile station associated with the MIM network and currently roaming within the PMM network to communicate packet data with an associated home agent (HA). A home agent (HA) is further introduced into the PMM network for enabling a mobile station associated with the PMM network and currently roaming within the MIM network to communicate packet data with an associated FA or Mobile IP Client Emulator (MICE) currently serving the roaming mobile station.

Abstract: A method pertaining to a telecommunications system for handling supplementary services for a mobile unit. The system includes a public land mobile network to which the mobile unit has subscribed. The mobile telephone network includes a main switch or gateway switching center to which there is connected a home location register. The mobile unit services are stored in this register. The method includes the steps of sending an authority word belonging to the mobile unit and the identification of the mobile unit to the home location register from a telephone unit in the telecommunications system via a telephone connection intended for handling services; checking the authority word by comparing the word with an authority word known to the home location register; accepting the authority word received from the telephone unit; sending a service handling specification from the telephone unit to the home location register; and performing the specified handling of the service.