| 摘要 |
In a communication system, a communication control apparatus is disposed in a mobile object. The communication control apparatus relays information exchanged between a plurality of radio terminals carried into the mobile object and a network side. The communication control apparatus comprises a communication control server which performs establishment of a radio channel between it and a base station at the network side, and establishment of a radio channel between it and a radio terminal according to a communication request from the radio terminal, and a communication unit 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 has an agent function for providing 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.
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