RADIO COMMUNICATION SYSTEM, RELAY APPARATUS AND MOBILE TERMINAL

摘要

A radio communication system, a relay apparatus and a mobile terminal that realize site diversity in a mobile IP environment. The radio communication system comprises a plurality of communication nodes that can be diversity branches; a relay apparatus that relays communication signals; and a mobile terminal that can utilize an IP address associated with a home address to move between radio zones related to the plurality of communication nodes. The relay apparatus duplicates, based on an instruction signal produced in response to a site diversity request of the mobile terminal, the received communication signal directed to the foregoing IP address, and transmits the communication signal to two or more communication nodes including a communication node indicated by the foregoing instruction signal. At least one of the two or more communication nodes opens an encapsulation to transmit the communication signal to the mobile terminal. The mobile terminal receives the communication signal from each of the plurality of communication nodes.