Patent ID: 8059696

Claim:
A transmitting device comprising: a processor configured to: divide a transmitting frequency bandwidth into a plurality of frequency blocks by grouping a plurality of subcarriers included in the transmitting frequency bandwidth into the plurality of frequency blocks each having a predetermined number of subcarriers, wherein each of the plurality of frequency blocks is narrower than a receivable frequency segment, which has a receivable bandwidth, in a receiving device, and set a transmission rate in each of more than two frequency blocks, to which a data with respect to predetermined information is allocated, of the plurality of frequency blocks so as to increase or decrease stepwise on a frequency axis; and allocate the data with respect to the predetermined information to the more than two frequency blocks so that, when the receivable frequency segment in the receiving device moves on the frequency axis of the transmitting frequency bandwidth frequency block by frequency block, the predetermined information, which is received in the more than two frequency blocks in the receivable frequency segment after moving, has different level-of-detail from that of the predetermined information, which is received in the more than two frequency blocks in the receivable frequency segment before moving.