Method and system for enabling connection of a mobile communication terminal to a radio communication network

A radio communication network comprising a network function able to control broadcasting through a geographic area, a message comprising a respective block of information about each available radio access network available in said geographic area, said information block intended for use by a mobile communication terminal for determining which radio access networks cover a current mobile communication terminal location within said geographic area,

• wherein each said information block comprises an identifier of one radio access network available in said geographic area, and, associated with said identifier of the one radio access network, data indicating an extent of coverage of the geographic area by that radio access network.

A mobile communication terminal, comprising:

• a receiver adapted to receive, from a radio communication network, a message comprising a respective information block broadcast through a geographic area about each radio access network available in said geographic area, said information block intended for use by a mobile communication terminal for determining which radio access networks cover a current mobile communication terminal location within said geographic area,
• wherein each said information block comprises an identifier of one radio access network available in said geographic area, and, associated with said identifier of the one radio access network, data indicating an extent of coverage of the geographic area by that radio access network.

A radio base station of a radio communication network, comprising:

• a transmitter adapted to broadcast, through a geographic area, a message comprising a respective information block about each available radio access network available in said geographic area, said information block intended for use by a mobile communication terminal for determining which radio access networks cover a current mobile communication terminal location within said geographic area,
• wherein each said information block comprises an identifier of one radio access network available in said geographic area, and, associated with said identifier of the one radio access network, data indicating an extent of coverage of the geographic area by that radio access network.