| 摘要 |
PROBLEM TO BE SOLVED: To improve accuracy of a timer included in a radio communication terminal of a multi-hop system. ! SOLUTION: A communication device including a timer for performing multi-hop communication with another communication device comprises: means for receiving time synchronization data including present time information showing time at which the time synchronization data is generated, from the other communication device; means for modifying timer time by using the present time information; means which generates, at periodic predetermined timing, transmission time synchronization data including, as present time information, time information shown by the timer and performs multi-cast transmission to a communication device within a radio wave arrival range; and means for determining whether or not the present time information included in the time synchronization data received by the time synchronization data reception means is correct. The communication device modifies the timer time by using |
