Node device propagation delay time adjustment method, propagation delay time adjustment system, propagation delay time adjusting device, and propagation delay time adjustment program

摘要

PROBLEM TO BE SOLVED: To provide a method for adjusting a propagation delay time occurring within a reception circuit of a one-side communication device in a one-to-N communication system using a synchronous code division multiplexing (CDM) method.;SOLUTION: The method includes: a transmission permission signal transmitting step for enabling a center node device to transmit a transmission permission signal designating a spreading code to an edge node device for which a propagation delay time is to be adjusted; a reception phase controlling step for changing a reception phase of the reception circuit corresponding to the edge node device; a reception validity determining step for determining whether a signal can be received validly based on a spreading demodulation output signal from the reception circuit with respect to a fixed signal period in the received signal from the edge node device; an optimum reception phase determining step for determining the optimum reception phase which can be received validly within a range where the reception phase is varied; and a reception phase setting step for setting the optimum reception phase as the reception phase of the reception circuit.;COPYRIGHT: (C)2010,JPO&INPIT