Nokia Corporation

Nokia Networks Oy

Nokia Technologies Oy

Nokia Telecommunications Oy

Tony Hulkkonen

Jaakko Rajaniemi

Juha Bäck

Heikki Juhani Einola

Markku Ahti Tuohino

Mohan Sivanandan

Stefano M Faccin

Tuija Helena Hurtta

Rene Waraputra Purnadi

Janne Markus Muhonen

Kati Marita Vainola

Olivier Guyot

Kalle Ahmavaara

Khiem Le

Serge Haumont

Lauri Kalevi Lahtinen

Seppo Huotari

Hannu-Pekka Salin

Kari Pekka Kauranen

Heikki Lindholm

Juha T Timonen

Juha B&auml;ck

Teemu Mäkinen

Paul Sitch

Joanna Uusikartano

The invention is a system and method of controlling an access of a subscriber to a network. The method includes sending an identification of the subscriber and a level of access to be provided to the subscriber from a visited network of a plurality of networks () connected to a home network (); in response to the identification of the subscriber and a level of access to be provided to the subscriber, storing a subscriber profile of the authorized of access to be provided to the subscriber; and controlling access of the subscriber to any network dependent upon a comparison of access to be provided to the subscriber and the stored subscriber profile.

System and method of controlling application level access of subscriber to a network

A method for estimating the location of a terminal operating in a communication system having at least two networks having overlapping areas of coverage, each network supporting at least one method for estimating the location of the terminal, and the terminal being in communication with a first one of the networks, the method comprising: assessing which of the networks is likely to form the more accurate estimate of the location of the terminal; and if that is the first one of the networks, estimating the location of the terminal by means of the first one of the networks, and if that is a second one of the networks, handling over the terminal to the second one of the networks and estimating the location of the terminal by means of the second one of the networks.

Positioning-triggered handover

A communication system and a method for the same is disclosed. In the method a first type of communication services is provided for a station (), wherein a first network entity () provides control operations for the provision of the communication service. A part of said control operations is then relayed from the first network entity () to a second network entity (). Information is exchanged between the first and second network entities, said information associating with provision of a second type of communication services for the station. A communication service of said second type is provided for the station based on said information.

Communication system comprising a plurality of communication networks

The disclosure relates to transfer of a user equipment from a network to another network. In the method a user equipment communicating with a first network is transferred from the first network to a second network providing resources to a plurality of operators. After initiation of the transfer, an operator is selected for the user equipment amongst the plurality of operators. A controller of the second network is then provided with information regarding the identity of the selected operator, and the user equipment is transferred to the second network. Information regarding the identity of the selected operator is also sent to the user equipment.

Transfer of a user equipment in a communication system

A method and system is disclosed for performing a location registration in a cellular communication network, wherein a subscriber identity of a user equipment is analyzed when a location registration request has been received, and a priority is allocated to the subscriber based on the result of the analysis. Then, the location registration request is admitted or rejected based on the allocated priority and a detected network load. Thereby, the network operator is able to guarantee network services for home subscribers in cases of increased network load.

Method and system for performing a location registration in a cellular radiotelephone system

A method for performing an inter-system handover of a user terminal in a telecommunications network comprising a first telecommunications system operable according to a first protocol and comprising a first service subsystem and a first access subsystem and a second telecommunications system operable according to a second protocol and comprising a second service subsystem and a second access subsystem; the user terminal storing capability data indicative of the user terminal's capabilities for communication with the service subsystems and the access subsystems.

Inter-system handover

According to one aspect, a communication network system comprising at least one first network and at least one second network providing application services over the first network is described. The system comprises first network means (GGSN) for receiving a message associated with an IP address allocated by the first network from the second network, for detecting that there is no active communication channel for this IP address which is allocated to a user equipment, and for sending an indication that the user equipment is not reachable through this IP address to the second network. The system further comprises second network means (P-CSCF/PCF) for receiving this indication.

Address de-registration from IP multimedia networks

A method for estimating the location of a terminal operating in a communication system having at least two networks having overlapping areas of coverage, each network supporting at least one method for estimating the location of the terminal, and the terminal being in communication with a first one of the networks, the method comprising: assessing which of the networks is likely to form the more accurate estimate of the location of the terminal; and if that is the first one of the networks, estimating the location of the terminal by means of the first one of the networks, and if that is a second one of the networks, handing over the terminal to the second one of the networks and estimating the location of the terminal by means of the second one of the networks.

A communication system can include an access network, a core network, and user equipment for connection to the core network through the access network. The access network can be configured to receive a request for network access from the user equipment, to receive network access information from the core network, to selectively control access to the core network for the user equipment in dependence on the network information, to identify a request for an emergency call, and to disable the selective control of access to the core network responsive to identification of an emergency call.

Emergency call support for mobile communications

The present invention proposes a method of performing an area update for a terminal equipment (A,B) in a communication network (), the communication network comprising at least two areas () being defined within an access network, at least one of said areas being served by at least two core network elements (--) of corresponding network element types, each of said at least two core network elements communicating with said access network defining said areas via a different interface (Iu, Gb), the method comprising the steps of: monitoring, at the terminal equipment side, via which of said at least two core network elements () serving a currently visited area () the communication with the terminal equipment (A) is effected, detecting, at the terminal equipment side, an area update condition for said terminal (A,B), requesting, by said terminal equipment, an area update for said terminal equipment (B), and wherein said terminal equipment (B) sets an identifier in said area update request identifying the core network element via which the communication with the terminal equipment (A) has previously been effected. Still further, the present invention proposes also an accordingly adapted terminal equipment.

Method of performing an area update for a terminal equipment in a communication network

A mechanism for performing routing in a communication system including a radio access network and a plurality of core networks connected to the radio access network. In order to accomplish a mechanism whereby the routing of a registration request to a serving core network, and also the rejection of a registration request, can be carried out in a controlled manner, a core network is first selected for a registration request received. The registration request is then forwarded to the selected core network and, in response to at least one predetermined criterion being fulfilled, the selected core network is notified that the registration request is to be served by that core network, i.e. that the registration request cannot be rerouted to another core network.

Routing procedure for a communication system

The present invention is a novel and improved method for managing in a single location the ciphering keys and algorithms used for encrypting or ciphering the communications of a specific mobile station with multiple core networks or core network entities. Further another aspect of the invention is that the management location is movable as the mobile station moves within the radio access network.

Method for controlling connections to a mobile station

A communication network system is disclosed, which comprises at least two different types of radio access networks attached to a core network. In the network system, a subscriber communicates via a first radio access network with the core network which forces handover of the subscriber to another type of radio access network on the basis of operator specific criteria.

Operator forced inter-system handover

The present invention relates to a method and an apparatus for performing a location update of a user equipment in a mobile network, wherein it is decided on the basis of the result of a negotiation with an old location register whether to use an identification information obtained from the old location register or to retrieve the identification information from a user database. Accordingly, whenever a fall-back to a protocol version not supporting the required identification information is determined, the identification information is retrieved from the user database, to thereby guarantee that the correct identification information is used in the new location register. The identification information may comprise security or authentication parameters.

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Helsinki, Finland

Tony Hulkkonen