| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To adjust synchronism of base stations in an entire system within a short period of time. <P>SOLUTION: The correction value calculation section 23 of a synchronizing device 1 clocks the transmission delay time of a synchronizing signal with each of a plurality of central devices, determines a first correction value for setting transmission timing of an information signal to a first designation value stored in a designation value memory 25 on the basis of the clocked value and gives the first correction value to the relevant central device. Each central device clocks the transmission delay time of a synchronizing signal with each of a plurality of the base stations, determines a second correction value for setting transmission timing of an information signal to a second designation value stored in a designation value memory 35 on the basis of a second clocked value, and gives the second correction value to the relevant base station. Synchronism among the respective central devices is adjusted from the synchronizing device and synchronism among the base stations is adjusted from the central devices, respectively, thereby synchronizing the transmission timing, at each base station, with the synchronizing signal supplied from a synchronizing signal transmission section 21 as a reference. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
