Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Nokia Siemens Networks Gmbh & Co Kg

Nokia Solutions and Networks Gmbh & Co. Kg

Jiadong Shen

Peter Leis

Ulrich Wiehe

Jozsef Varga

Alexander Milinski

Curt C Wong

Martin Oettl

Jürgen Mayer

Suprabhat Chatterjee

Juergen Mayer

Wolfgang Buecker

Markus Schott

Michael Bath

Peter Bader

Milan Cermak

Stefan Hoffmann

Jurgen Mayer

Zsolt Rajko

It is provided a method, comprising monitoring, for each of plural attempts of a web identity to register for an internet protocol multimedia service, if the respective attempt is received; generating, for each of the plural attempts if the respective attempt is received, a respective private user identification based on the web identity and a respective distinguishing identifier, wherein probability that two of the private user identifications have a same value is less than a predefined limit; providing the respective private user identification in response to the respective attempt.

Multiple parallel WebRTC accesses to IMS

A scenario may arise in which a circuit switched (CS) bearer reservation is successful but a voice media switching from packet switched (PS) to CS performed by a mobile switching center (MSC) server fails. Certain embodiments provides systems, apparatuses, and methods for recovery from such a scenario. A method, for example, can include determining whether session transfer of a user equipment is possible in response to a request from a network element to initiate session transfer of the user equipment and reporting to the requesting network element either a generic or specific indication that the transfer is not possible, when it is determined that the session transfer is not possible.

Handling handover requests in a communications system

It is disclosed a method including transmitting, after successful registration of a terminal at a network entity, a registration message including terminal identity information and integrity indication information indicating affirmative integrity of the terminal identity information; and a method including processing, after reception of the registration message, the received registration message based on the terminal identity information and the integrity indication information such that, i) if the integrity is indicated affirmative, an authentication procedure of the terminal is skipped, or, ii) if the integrity is indicated negative, the received registration message is rejected without provisioning of key information related to registration of the terminal.

Methods, apparatuses, system and computer program product for supporting legacy P-CSCF to indicate the S-CSCF to skip authentication

The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding IMS (Internet Protocol Multimedia Subsystem) restoration support for temporary GRUU (Globally Routable User Agent Uniform Resource Identifier). Certain aspects of the present invention include creating, at a registrar, a registration identified by a registration identifier, and storing, by the registrar, the registration identifier, a call identifier and an initial command sequence related to the registration identified by the registration identifier in a persistent database during the registration.

Internet protocol multimedia subsystem (IMS) restoration support for temporary globally routable user agent uniform resource identifier (GRUU)

The invention relates to a session control entity, subscription entity, methods and computer programs for transmitting a request to terminate a registration of a user, determining if the user is registered for an emergency service, for maintaining the user registered for the emergency service, if based on the determination the user is registered for the emergency service, and transmitting an indication indicating that the user is registered for an emergency service if based on the determination the user is registered for the emergency service.

Method and apparatus for maintaining a registration for an emergency service

There are provided measures for a failover functionality for a client-related security association. Such measures exemplarily comprise providing a failover functionality at a proxy function and/or facilitating provision of a failover functionality at a servicing call state control function, wherein the respective failover functionality relates to a first proxy function, the serving function is for servicing the first proxy function and a second proxy function, the first proxy function has a security association with a client, and the first proxy function and the second proxy function are reachable with the same network address.

Failover functionality for client-related security association

The invention relates to a subscriber data entity, method and a computer program product for defining a first record including a wildcarded public user identity covering plurality of public user identities of users, defining a second record including a public user identity of a user, wherein the public user identity belongs to the plurality of public user identities which the wildcarded public user identity covers and assigning the first record and the second record to the same registration set, wherein the registration set includes public user identities to be registered together.

Handling of public identities

Re-assigning Serving Call Session Control Function, S-CSCF, services to a user of a Home Subscriber Server, HSS (), in a Third Generation Partnership Program, 3GPP, telecommunications network is provided. In the case that S-CSCF services to the user including a registration procedure are previously assigned and access by the user to the S-CSCF services is erroneously lost, the proposal is to provide a method and means to re-assign those services. First, dynamic registration information () is uploaded from S-CSCF to the HSS () during the registration procedure. Then, the dynamic registration information () is stored from HSS () to S-CSCF () during a re-assignment procedure of the user.

Method for re-assignment of S-CSCF services to registered IMS users of a home subscriber servers HSS

Method for providing a subscription to an IP-based Multimedia Subsystem (IMS) for a first client of a packet-switched network is provided. The first client is identified by the same MSISDN number as a second, mobile client of a circuit-switched network. The method comprises the following steps: a) sending, by the first client, a register request to an IMS Server via the packet-switched network, b) sending, by the IMS server, a location query request to a register for the IMS user identities (HSS), c) requesting, by the register for the IMS user identities (HSS), the user subscription information of the circuit-switched network from the register for the circuit-switched network (HLR), d) sending, by the register for the circuit-switched network (HLR), to the register for the IMS user identities, the user subscription information of the second client, e) creating, by the register for the IMS user identities (HSS), a user IMS subscription information based on user subscription information of the second client.

Method for providing subscriptions to packet-switched networks

The present invention relates to an S-CSCF receiving a terminating request associated with a called user and executing services for the called user. The S-CSCF determines an indication in Session Case indicating originating services handling in call forwarding situation, and based on this executes a subset of services for the user.

Providing services in case of call diversion in a communication system

The present invention relates to assigning an S-CSCF to an un-registered user in an IMS network. A HSS maintains information about a registration state of users and about assignments of S-CSCF to the users. HSS determines if S-CSCFs are available to serve the users. When receiving a request associated with a user and requesting address of an S-CSCF assigned to the user, assignment of the S-CSCF for the user is removed from HSS if the S-CSCF has been determined not to be available and if the registration state of the user indicates that the user is not registered. The HSS may transmit Server Capabilities to an I-CSCF to enable the I-CSCF to re-select new S-CSCF to serve the user.

Growing community of inventors

Munich, Germany

Jiadong Shen