Radio communication control station, radio communication terminal, home agent, and radio communication method

Abstract

A radio communication control station including a packet receiver, a paging controller, a location information receiver, and a retriever. The packet receiver receives an IP packet destined for a radio communication terminal subscribing to one of sub-networks constituting a composite radio communication network. The paging controller causes one of the sub-networks to page the radio communication terminal. The location information receiver receives location information on a current location of the radio communication terminal from the radio communication terminal. The retriever retrieves candidates of sub-networks that can be employed by the radio communication terminal on the basis of the location information on the radio communication terminal. The radio communication terminal selects a sub-network for its use among from the candidates and establishes an environment for communication with the sub-network.