Radio transmitting apparatus and radio transmitting method

Details Radio transmitting apparatus and radio transmitting method Radio transmitting apparatus and radio transmitting method

2005-03-22

2005-03-22

Hudspeth, David (Department: 2681)

Telecommunications

Carrier wave repeater or relay system

Plural modulated carriers

C455S023000, C375S219000, C370S203000

Reexamination Certificate

active

06871046

ABSTRACT:
Channel fluctuation estimating section101estimates fluctuation amount of the channel between transmitting apparatus100and receiving apparatus200, and carrier number determining section102determines the number of subcarriers used in transmission of signal based on channel fluctuation amount. That is to say, in the case of a remarkably rapid channel fluctuation caused by fast fading, etc., carrier number determining section102deduces relatively the channel fluctuation between symbols or within a burst, by decreasing the subcarriers number and increasing symbol rate per one subcarrier.

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