Patent ID: 7680095

Claim:
A radio communication system in which a signal is transmitted and received between an adjustment node and a plurality of measurement nodes, and each of the measurement nodes transmits and receives a radio signal with respect to at least one mobile node; wherein when each of the plurality of measurement nodes receives a signal from one of other measurement nodes, the measurement node relays the received signal to one of the measurement nodes other than the relevant measurement node, or the adjustment node, and when the measurement node receives a signal from the adjustment node, the measurement node relays the received signal to one of other measurement nodes, and each of the measurement nodes comprises a phase difference detection means for detecting phase difference between the received signal and the relayed signal, a phase difference notice means for notifying the detected phase difference to the adjustment node, and a timing adjustment means for adjusting timing at which a signal received from the mobile node is transmitted to another measurement node based on correction amount sent from the adjustment node, and the adjustment node comprises, a correction amount calculation means for calculating correction amount for correcting the notified phase difference, and a correction amount transmission means for transmitting the calculated correction amount to a measurement node that relayed a signal to a measurement node by which the phase difference was notified.