| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable supervision and control of a device on the receiving side, even when a radio transmission channel condition is deteriorated and information is selectively transmitted because of reduced transmission capacity due to the function of an adaptive modulation system in a radio transmission system performing adaptive modulation. <P>SOLUTION: An extraction instruction information acquisition unit 109 acquires extraction instruction information, and according to the extraction instruction information, a multiplexer unit 105 generates a radio signal. A radio frame transmission unit 106 transmits the radio signal. By this, a radio transmission system 1 can preferentially transmits information desired by an operator, such as RSOH or a byte specified by the operator. Thus, even when a radio transmission channel condition is deteriorated and information is selectively transmitted because of reduced transmission capacity due to the function of an adaptive modulation system, a radio transmission device 500 can perform supervision and control of a device. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
