| 摘要 |
The present invention has its object as reducing collisions of communications between mobile stations. For this purpose, notifying, on a wireless base station, a mobile station (2) of information in advance that designates a pattern (F) of a transmission timing phase in a wireless frame which is used when a transmission cycle is changed; on the mobile station (2), changing for increasing a length of the transmission cycle when a traveling speed is decreased; identifying, based on the information, the transmission timing phase corresponding to the transmission cycle after the change; and carrying out transmission using the transmission timing phase. |
