TRANSMISSION PHASE SYNCHRONIZING ADJUSTMENT SYSTEM FOR PLURAL STATIONS

摘要

PURPOSE:To attain the adjustment of phase synchronization even if the phase of an individual information signal is shifted by DELTAT or over by arranging a plural station transmission time slot and an individual transmission time slot alternately and allowing each base station to suppress the transmission of the plural station transmission time slot when the monitor and adjustment of the transmission timing are disabled. CONSTITUTION:A common information time slot and an individual information time slot are arranged alternately in a radio channel shared in common by plural base stations. Each base station uses a reception timing measuring section 7 to measure a difference of the reception timing of the individual information between the reference station and its own station and a phase adjustment section 8 adjusts the transmission timing of its own station. Thus, the phase synchronization of the time slot sent simultaneously by the plural stations is kept. When the phase shift reaches DELTAT or over and is not adjustable, a transmission control section 10 controls the transmission section 9 so as to suppress the transmission of the common information. Then the difference of the reception timing of the individual information between the reference station and its own station is measured and the transmission timing of its own station is monitored and adjusted to keep the phase synchronization.