COMMUNICATION SYSTEM, COMMUNICATION CONTROL METHOD, AND COMMUNICATION CONTROLLER

摘要

In a communication system according to the invention, a communication control apparatus 10 is disposed in a mobile object 10-1. The communication control apparatus 10 is means for relaying information exchanged between a plurality of radio terminals 11-j (j = 1 to k) carried into the mobile object 10-1 and a network side. The communication control apparatus 10 comprises a communication control server 10a which performs establishment of a radio channel between it and a base station 12-j at the network side, and establishment of a radio channel between it and a radio terminal 11-j according to a communication request from the radio terminal 11-j, and a communication unit 10b which performs a radio communication with the radio terminal and a radio communication with the base station, using each radio channel established by the communication control server. The communication control server 10a has an agent function for providing an alternative means such as a communication reservation or a packet transmission to a user of a radio terminal in case that it cannot establish a radio channel between it and the base station corresponding to a communication request at a point of time when it has received the communication request from the radio terminal. <IMAGE>