OFDM signal collision position detection apparatus and OFDM...

Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions

Reexamination Certificate

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Details

C370S332000, C370S329000, C370S344000, C455S450000, C375S285000

Reexamination Certificate

active

07626919

ABSTRACT:
A pilot reception power measuring section104measures reception power of a pilot symbol and a data section reception power prediction section106predicts reception power of data symbols based on the reception power of the pilot symbol. A power comparison section107calculates a difference between this predicted value and the actual reception power of the data symbol, and when the difference is large, a collision position detection section108regards the data symbol at the hopping position as colliding with data symbols in other cells. Then, an error correcting decoding section103carries out error correcting processing by reducing likelihood of the data symbols detected to be involved in the collision and can thereby improve the error rate characteristic of decoded data.

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