Channel decoding for multicarrier signal transmission by means of DC-offset and carrier-frequency offset-dependent weighting of reliability information
First Claim
1. A method for reduction of interference caused by a DC offset with a concurrent carrier-frequency offset in received channel-coded data symbols in a multicarrier system with two or more sub-carriers, comprising:
- determining reliability information for channel decoding for at least one sub-carrier, wherein the reliability information is corrected based on a magnitude of the interference; and
weighting input values to a channel decoder with the reliability information.
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0 Petitions
Accused Products
Abstract
The influence of a DC offset with a carrier-frequency offset at the same time is reduced in that the values of the assumed or determined DC offset and of the assumed or determined carrier-frequency offset are included in the determination of reliability information for one sub-carrier in the multicarrier system, and the reliability information is corrected in this way. A factor M, where M<1, is defined for each sub-carrier on the basis of the values for the DC offset and for the carrier-frequency offset, and the reliability information for the sub-carriers is multiplied by these factors M.
15 Citations
9 Claims
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1. A method for reduction of interference caused by a DC offset with a concurrent carrier-frequency offset in received channel-coded data symbols in a multicarrier system with two or more sub-carriers, comprising:
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determining reliability information for channel decoding for at least one sub-carrier, wherein the reliability information is corrected based on a magnitude of the interference; and
weighting input values to a channel decoder with the reliability information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification