| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio transmission system which accommodates a plurality of independent LAN lines whose signals are never mixed on one radio transmission line without allocating a fixed band to each LAN line on the radio transmission line. SOLUTION: A port information adding circuit 138 acquires a port select signal indicating a port to be read out by a transmission order determining circuit 136 and sends a readout control signal for reading a LAN signal, frame by frame, to one of received frame buffers 131 and 132 according to the port select signal 218. The port information adding circuit 138 adds port information for identifying a reception port and error detection information for detecting a signal error in a radio section to the readout LAN signal to generate transmitted capsulated LAN signals, frame by frame, and outputs then to a radio transmission device through a radio transmitting and receiving circuit and a radio transmission line. COPYRIGHT: (C)2006,JPO&NCIPI |
