Synchronization device and synchronization method

A synchronization device, comprising:

• an other-station transmission timing acquisition module for acquiring transmission timings of other stations;
• and
• a station-concerned transmission timing determination module for determining a transmission timing of a station concerned based on the transmission timings of the other stations, the station-concerned transmission timing determination module including:
• a reference timing generation module for generating a reference timing of a fixed time interval;
• a timing difference calculation module for calculating a timing difference between the reference timing and each of the transmission timings of other stations;
• and
• a timing difference storage module for storing the timing differences;
• wherein a plurality of the timing differences are acquired over a preset time length of the past from a timing at which the station concerned is going to transmit, the number of substantially the same timing differences are counted, and the transmission timing of the station concerned is synchronized with a transmission timing corresponding to a timing difference with the greatest number of count.