| 摘要 |
PROBLEM TO BE SOLVED: To set a transmission rate quickly and easily in a radio communication network. SOLUTION: Each communication unit constituting a radio communication system 1 receives a signal transmitted from another communication unit (communication unit A) to an arbitrary communication unit (communication unit B) constantly and detects a communication environment from a received signal (acquires communication environment data). When each communication unit transmits original data to the communication unit A, an appropriate transmission rate is set based on a detected communication environment without training. Consequently, each communication unit can set a transmission rate quickly and easily upon receiving a transmission request of original data and can transmit the original data at an appropriate transmission rate. Since retransmission frequency of data can be reduced by transmitting original data at an appropriate transmission rate without training, transmission efficiency of original data can be enhanced.
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