Radio transmitting apparatus, radio receiving apparatus and method therefor
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United States of America Patent
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May 13, 2008
Grant Date -
Dec 30, 2004
app pub date -
Apr 15, 2003
filing date -
Apr 17, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
By assigning a plurality of subcarriers 31 to a data channel 33 and assigning fewer subcarriers 32 than the plurality of subcarriers 31 to a control channel 34, and in addition locating the control channel 34 at the center frequency fc of a frequency band used to transmit the data channel 33, on the radio receiving apparatus side, the frequencies of a local signal by which the received signal is multiplied share the same value, thereby speeding up the switching between the control channel and the data channel.
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