Vringo Infrastructure Inc.

Nokia Corporation

Core Wireless Licensing S.a.r.l.

Kari Pekka Kauranen

Hannu Petri Hietalahti

Juha Matias Kallio

Tuomas Niemela

Miikka Huomo

Tony Hulkkonen

Tuomas Niemelä

Jarmo Virtanen

Lauri Söderbacka

Miika Huomo

Antti Pitkämäki

The invention relates to a method and system for performing packet switched handover in a mobile communication network. The system comprises a mobile node, a first and a second packet switching node. The method enables the parallel sending of logical link layer frames from the first and the second packet switching node. This is achieved so that the mobile node does not reject incoming frames received from two logical link layer entities having different states. The benefits of the invention are related to improved quality of service and the avoiding of gaps in received data during handover.

Method for performing packet switched handover in a mobile communication system

Multicast/broadcast messaging service (MBMS) arrangement, in which a broadcast/multicast service center delivers multimedia messages to a plurality of users via a gateway GPRS support node (GGSN) and via a serving GPRS support node (SGSN) and a radio access network (RAN), in association with a given temporary mobile group identity (TMGI) and using a single radio access bearer (RAB). Responsive to a given event, the SGSN sends to the RAN a data volume report query identifying said RAB by the TMGI or another unique parameter. The RAN responds with a data volume report that indicates the amount of unsent MBMS data. If so agreed, the SGSN will pass said amount to a charging gateway for compensation in charging for the MBMS service.

Data volume reporting for multimedia broadcast/multimedia service groups

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

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Helsinki, Finland

Kari Pekka Kauranen