| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress wiring costs even if there is an area that can not be watched from a base station device, by utilizing a radio repeater station, to construct a radio system wherein useless traffic is not generated, by utilizing a route control table and further, to also deal with the movement of a radio terminal device. <P>SOLUTION: Regarding a base station device 24, a radio relay station 40 and a radio terminal device 26 existent under control of an information transfer apparatus 22 itself, the information transfer apparatus 22 stores in a table storage section 22a the relation between layer-3 addresses of the devices and its own communication port 28-i to which those devices are connected. Therefore, a communication port 28-i for outputting is determined in accordance with the layer-3 destination address of a packet, and the packet can be outputted from the communication port 28-i. If the radio terminal device 26 moves, the information transfer apparatus 22 and the radio relay station 40 then rewrite their tables. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
