Method for performing an equalisation per carrier in a MC-DMA receiver
First Claim
1. ) Method for performing an equalisation in a MC-CDMA receiver, the symbols transmitted to said receiver being spread with a spreading sequence over a plurality (N) of carriers, the signal received by said receiver being decomposed into a plurality of frequency components (rl), characterised by estimating (331) relative power values on each of said carriers, calculating (333) a plurality of equalisation coefficients (ql) from the estimated relative power values ({circumflex over (P)}l,(μ
- {circumflex over (.)}Pl)) and multiplying (3340, . . . ,334L−
1) each of said frequency components by one of said equalisation coefficients.
1 Assignment
0 Petitions
Accused Products
Abstract
Method for performing an equalisation in a MC-CDMA receiver, a symbol transmitted to said receiver being spread with a spreading sequence over a plurality (N) of carriers, the signal received by said receiver being decomposed into a plurality of frequency components (rl), characterised by estimating (331) relative power values on each of said carriers, calculating (333) a plurality of equalisation coefficients (ql) from the estimated relative power values ({circumflex over (P)}l, (μ{circumflex over (.)}Pl)) and multiplying (3340, . . . ,334L−1) each of said frequency components by one of said equalisation coefficients.
-
Citations
7 Claims
-
1. ) Method for performing an equalisation in a MC-CDMA receiver, the symbols transmitted to said receiver being spread with a spreading sequence over a plurality (N) of carriers, the signal received by said receiver being decomposed into a plurality of frequency components (rl), characterised by estimating (331) relative power values on each of said carriers, calculating (333) a plurality of equalisation coefficients (ql) from the estimated relative power values ({circumflex over (P)}l,(μ
- {circumflex over (.)}Pl)) and multiplying (3340, . . . ,334L−
1) each of said frequency components by one of said equalisation coefficients. - View Dependent Claims (2, 3, 4, 5)
- {circumflex over (.)}Pl)) and multiplying (3340, . . . ,334L−
-
6. ) Multi-carrier CDMA receiver in a MC-CDMA telecommunication system characterised by comprising decomposing means for decomposing a received signal into a plurality of frequency components carried by a plurality of carriers, equalising means for multiplying each of said frequency components with an equalisation coefficient, characterised in that said equalising means further comprise means for estimating relative power values on each of said carriers and means for calculating the equalisation coefficients from the estimated relative power values
-
7. ) Multi-carrier CDMA receiver in a MC-CDMA telecommunication system, said receiver being dedicated to a user of said system, characterised in that it comprises decomposing means for decomposing a received signal into a plurality of frequency components carried by a plurality of carriers, interference removing means for removing from each of said frequency components the contribution due to signals transmitted to at least another user of said system, said interference removing means producing interference cleared frequency components carried by said plurality of carriers, said receiver further comprising equalising means for multiplying each of said removed frequency components with an equalisation coefficient, said equalising means comprising means for estimating relative power values on each of said carriers after interference removal and means for calculating the equalisation coefficients from the estimated relative power values.
Specification