Nokia Corporation

Nokia Technologies Oy

Nokia Siemens Networks Oy

Spyder Navigations LLC

Balazs Bertenyi

Markus Isomäki

Lauri Kalevi Lahtinen

Eva-Maria Leppänen

Jouko U Tenhunen

Haluk Tekbulut

Harri O Koskinen

Krisztian Kiss

Gabor Bajko

Tuija Helena Hurtta

Zhi-Chun Honkasalo

Markku K Vimpari

Ilkka Westman

Seppo Huotari

Marco Stura

Anne Narhi

Kirsi Rotsten

Jukka Ilari Hongisto

Robert Sugar

Nedko Ivanov

Inmaculada Carrion Rodrigo

Ervin Beres

Erdei Erzsebet

Stefano M Faccin

Juha Antero Rasanen

Yousuf Saifullah

Juha Antero Räsänen

Juha-Pekka Koskinen

Miikka Juhana Poikselka

Juha R Vallinen

Heikki Tuunanen

Srinivas Sreemanthula

Miikka Poikselkä

Lauri Laitinen

Harri Honko

Erkki Ojala

Merja Hopeaharju

Jari Syrjälä

Stefano Faccinn

Juha Pekka

Juha Pekka Koskinen

Markus ISOMÄKI

This invention relates to a method of routing for a message via an IMS system is disclosed. A message is received at an ICSCF. Address information is obtained for one of an application server, server or gateway for which said message is intended. The message is sent to said application server, server or gateway in accordance with said address information.

Routing messages

In a first embodiment, when an Activate PDP Context Request message is forwarded to a Service GPRS Support Node (SGSN), the SGSN creates a Create PDP Context Request message and forwards it to a Gateway GPRS Support Node (GGSN). In response to the Create PDP Context Request forwarded by the SGSN, the GGSN creates a Create PDP Context Response message. When a PDP context is created by the GGSN, the GGSN associates a Globally Unique Charging Identification (GCI) with the PDP context. Then, the Create PDP Context Response including the GCI is forwarded to the SGSN. The GCI is sent from the SGSN to the UE and from the UE to the CSCF. In a second embodiment, the GCI is sent from the SGSN or the GGSN directly to the Call State Control Function (CSCF). Sending the GCI can be performed either autonomously or based on a request from the CSCF. In either embodiment, the CSCF can send the GCI to a second network which performs processing, such as billing, from data collected from call detail records associated with the GCI.

Common charging identifier for communication networks

An apparatus and a method are provided for multiplexing different sessions using the same authorized contexts for media. The method includes distinguishing different control plane sessions by a user equipment, and identifying media flows of a same application among the different control plane sessions by the user equipment by setting a service identifier. The method further includes sending the service identifier by the user equipment to a call state control function including a policy decision function, and authorizing quality of service for a user plane context by the policy decision function. Furthermore, the method includes enabling, by the policy decision function based on the service identifier, the different control plane sessions with media flows of the same application to share the same user plane context with the authorized quality of service to multiplex the different control plane sessions with media flows of the same application.

Multiplexing media components of different sessions

The invention relates to a communication method and system wherein a network element of a roaming user is attachable to a visited first network and may still be served by a serving means of the home network. The network element of the roaming user is able to indicate a preference, e.g. home or local control, when registering or initiating a connection. A network element of the visited network such as proxy means adds information on the indicated preference when sending a message to the home network. The message is preferably sent as a protocol message, in particular a message of the Session Initiation Protocol (SIP).

Communication system and method to be performed in a communication system

A method of multiplexing different sessions using the same authorized contexts for media, comprising: distinguishing the sessions to be multiplexed, by a device; creating a new session on a control plane; indicating media flows of different sessions; and enabling the sessions to share the same authorized context for media, thus being multiplexed.

In a technique for setting up calls in IP mobile networks, when an application level in a mobile station sends a setup message to set up a multimedia call, before sending such a message over the radio interface, the mobile station performs the appropriate procedures to setup the appropriate bearers over the radio interface and in the network to satisfy the call requirements specified by the application level in the setup message. The technique applies to both mobile originated calls and mobile terminated calls, the called mobile station performing the transport level procedures after having received a setup message and before sending a confirmation/call acceptance message back to the calling party. Furthermore, the allocation of radio resources for PDP contexts that will be used to carry the media of a multimedia IP called is delayed so that no radio resources are allocated to the PDP contexts activated before the call control signaling is exchanged. The radio resources are allocated only when the call signaling has been completed and the called party has accepted the call and indicated the call characteristics that it can support. An indication is forwarded from the SGSN to the GGSN advising that no packets are to be sent on the PDP context because there are no radio resources for the PDP context.

Technique for setting up calls in mobile network

A communications system and method for providing services to a subscriber of the system is provided. The system includes a system element controlling call processing, service data for a subscriber of the system, and an element for storing subscriber data. The system is configured to associate an indicator with a service data structure of the service data of a subscriber. The element for storing subscriber data is configured to store the service data structure of the service data of the subscriber associated with the indicator. The system is configured to transmit from the element for storing subscriber data service data of a subscriber comprising the service data structure associated with the indicator to the system element controlling call processing service.

Transmission of service data to services controlling the processing of a communication connection in an intelligent network-like manner

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Budapest, Hungary

Balazs Bertenyi