RADIO COMMUNICATION SYSTEM

摘要

A radio communication system simultaneously establishes a basic access network and a radio access network by using at least two types of radio communication network. The basic access network performs signaling communication for acquiring network information usable according to terminal position information so as to realize continuous communication switching and communication by SIP (Session Initiation Protocol) for performing exchange of a subscription request signal between terminals and communication negotiation. This configuration enables peer-to-peer connection by medium application between terminals.