Patent ID: 6424818
Filing Date: 2002-07-23
Classification: H04W

Abstract:
A communication system comprising:a communication network; one or plural base stations connected with the communication network; one or plural radio terminals; and a communication control apparatus disposed between the radio terminal and the base station for relaying information exchanged between the radio terminal and the network by performing a radio communication with the radio terminal and performing a radio communication with the base station; wherein said communication control apparatus comprises:a communication control server for performing a channel control between said communication control server and a respective radio terminal, and for performing a channel control between said communication control server and a base station; a communication unit for performing a radio communication with the radio terminal and the base station using radio channels established by the communication control server; and wherein said communication unit detects a communication status with the communication network and said communication control server determines whether or not radio communication can be performed with the communication network.