Telefonaktiebolaget Lm Ericsson (publ)

Aimo Tuoriniemi

Gabor Fodor

Göran Eriksson

Jan Höller

A system and a method allowing a user terminal () in a network to simultaneously access a plurality of radio based access networks () of diverse access technologies. Characteristic features of the invention are access selection adapters (), each one associated with a respective radio based access network, and an access technology independent access selector (). An access adapter has means () for receiving access technology dependant information from its respective access network and means () for translating the information into access technology independent status information. The access selector comprises an access selection algorithm () interacting with applications () resident in the user terminal and with each access adapter for selection of a radio access network based on an individual QoS profile associated with each respective application and on said access technology independent status information. The invention also relates to a method for service scheduling.

System and method for multi-access

A method of retrieving candidate access router discovery (CARD) information in a user terminal which is present in a many access systems. CARD information is exchanged on an IP control plane between access routers in the access systems, but the user terminal has no IP control plane. In accordance with the invention CARD protocol information is translated into L2 information messages which are transmitted to the user terminal either as extensions to the conventional protocol used for bearer service set up between the user terminal and an access router or as extensions to the conventional protocol used by the individual access system for broadcasting of its system characteristics. In the former case the translated CARD information is transmitted on an L2 bearer service between the current access router and the user terminal and in the latter case the translated information is broadcasted by each access router. The invention also relates to a radio access router and a terminal. (FIG.for publication).

Method for candidate access router capability discovery

The present invention relates to resource reservation for establishing end-to-end quality of service in a digital communication system, without resource reservation signalling over the access bearer. The solution, according to the invention is to remove the resource reservation protocol signalling on the IP level, over the access interface, e.g. the expensive and narrow radio channel, and introduce an resource reservation protocol proxy in the network. The introduction of the proxy functionality still supports the possibility, or meets the requirement, to reserve resources end to end.

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Espoo, Finland

Aimo Tuoriniemi