Patent ID: 6782008
Filing Date: 2004-08-24
Classification: H04B,H04J

Abstract:
A radio communication system comprising:base stations, any one of said base stations being connected to a mobile station via a radio link by means of spectrum spread multiplexing scheme, said one base station and said mobile station being synchronized based on a control signal periodically transmitted from said one base station, the control signal having a first portion which includes a predetermined bit pattern and is not spectrum-spread and a second portion which is spectrum-spread by using a spreading signal assigned to said one base station; and a center station configured to control said base stations and store control signal transmission timing information of said base stations such that base stations which are adjacently located transmit the control signal at different timing, wherein any one of said base station comprises a transmitter configured to transmit the control signal based on said control signal transmission timing information, and said mobile station comprises a detector configured to detect whether or not the first portion of the control signal includes the predetermined bit pattern.