| 摘要 |
PURPOSE: To highly accurately measure receiving power without complicating signal processing. CONSTITUTION: A frame generating part 1 in a transmitting side device assembles a frame by the use of effective information to be transmitted within each frame period in each frame period. An interleaving part 2 divides the effective information into blocks having time length necessary for power measurement and executes interleaving processing for transmitting each block at prescribed timing. A diffusion part 3 applies spread spectrum to the interleaved result and transmits the spread spectrum result as a radio signal. A receiving part 11 in a receiving side device receives the radio signal and an inverse spread spectrum part 12 applies inverse spread spectrum processing to the receives signal. A power measuring part 14 measures receiving power based upon a signal obtained by the inverse spread spectrum processing for a period corresponding to the time length of the block. |
