Patent ID: 7729320
Filing Date: 2010-06-01
Classification: H04B

Abstract:
1. A mobile radio system for controlling a radio communication period between a fixed station and a plurality of mobile stations, and a radio communication period among mobile stations in accordance with TDD (Time Division Duplex) system, each of said fixed station and said mobile stations comprising: time information acquiring means for acquiring external high precision time information; transmission timing generating means for generating a transmission timing signal in accordance with said TDD system from the time information acquired by said time information acquiring means; a counter performing a count-up operation with a period of at least the transmission timing signal and being reset when the time information is acquired by said time information acquiring means; sub-information transmitting/receiving means for transmitting sub-information in which the transmission timing signal generated by said transmission timing generating means is defined as an internal timing signal and the count value of said counter is defined as an internal count value, and for receiving sub-information in which the transmission timing signal of another station is defined as an external timing signal and the count value of the counter of another station is defined as an external count value; and TDD transmitting/receiving control means for controlling the internal timing signal and the external timing signal with one of the timing signals being selected based on a comparison of the internal count value and the external count value.