| 摘要 |
PURPOSE: To easily enlarge the communication range of a radio data communication network at a low cost without laying a wire LAN. CONSTITUTION: Plural stations A-E respectively provided with the transmission/ reception function of radio waves for carrying frames including information are arranged so as to overlap a part of zones A-E which are the reaching ranges of the respective radio waves. Between the station A and the station E, for instance, which can not mutually directly perform communication, by relaying linked through plural routes (A, C, D and E or A, B, C, D and E) by the other stations B and C and the station D, a communicable range is enlarged. |
