| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely secure the synchronization of multiplex frame at the time of transmitting n pieces of the same spreading code string different in phase in parallel. SOLUTION: A frame synchronizing signal consisting of unique words and excellent in autocorrelation is inserted at every prescribed period by a frame synchronizing signal inserting part 23 and transmitted, so that a reception side can detect the unique words by a correlator. Therefore, the frame synchronizing signal is easily reproduced and the synchronization of the multiplex frame is more surely secured without deteriorating the transmission efficiency of data.</p> |
