| 摘要 |
PROBLEM TO BE SOLVED: To obtain a radio communication system performing downlink communication from a base station unit containing a plurality of communication station units to the communication station and uplink communication from the communication station unit to the base station unit by radio in which small power is realized using an inexpensive communication station unit and radio communication is performed efficiently by shortening the guard time. SOLUTION: A plurality of groups 1-4, not less than four, performing reception in the same time band and performing transmission in the same time band are provided using communication frames shown on the illustration and each communication station unit A-D contained in a base station unit P is assigned with any one group 1-4. Between the downlink communication time band and the uplink communication time band of each group 1-4, a communication time band of another group is provided and time shared downlink communication and uplink communication are performed between the base station unit P and plurality of communication station units A-D for the plurality of groups 1-4. |
