| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless transmission device which can reduce interference (given interference) to another system whose use frequency band is adjacent by reducing a level of a specified subcarrier and makes positional information of the subcarrier whose level is reduced unnecessary in a specific process using a physical header at a receiving side. SOLUTION: In the wireless transmission device, when physical data are transmitted by a multi-carrier system after adding the physical header containing a short training field, a long training field, and a signal field, for the physical header and the physical data, the level of the subcarrier which exists at one end or both ends of the channel band and of which the number of them is predetermined is reduced lower than that of the subcarrier excluding the subcarrier which exists at one end or both ends of the channel band and of which the number of them is predetermined by a channel band end subcarrier level reduction part 35. COPYRIGHT: (C)2011,JPO&INPIT
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