Receiving station with interference signal suppression
AssigneeQUALCOMM Incorporated
InventorsMario Bonaccorso, Fuyun Ling, Nagabhushana Sindhushayana, Peter Black
Life of this patent
Estimating the term…
Abstract
An optimum combiner that reduces the amount of interference imposed upon a first base station by transmissions of other base stations within the same communication system. Two antennas are used to receive transmissions within a receiving station. A rake receiver is coupled to each antenna. By optimally combining the signals that are received by each independent finger of the rake receiver, interference that is correlated between a finger associated with the first antenna and a finger associated with the second antenna can be minimized with respect to the desired signal. Optimum combining requires determination of optimum combining coefficients.
Claims11
In a wireless communication receiver, the method comprising:
- receiving a plurality of signals at the receiver;
- sampling the plurality of signals to generate sampled signals to the receiver;
- determining weights for the plurality of signals, comprising:
- estimating an autocorrelation of the sampled signals;
- estimating a cross correlation between the sampled signals and corresponding transmitted signals;
- and
- calculating the weights as a product of the autocorrelation and the cross correlation;
- receiving data signals at the receiver, the data signals having corresponding transmitted data signals;
- and
- applying the weights to the data signals to generate an estimate of the transmitted data signals.
In a wireless communication receiver, the method comprising:
- receiving a plurality of signals at the receiver;
- sampling the plurality of signals to generate sampled signals to the receiver;
- determining weights for the plurality of signals, comprising:
- estimating an autocorrelation of the noise received at the receiver;
- estimating a cross correlation between the sampled signals and corresponding transmitted signals;
- and
- calculating the weights as a product of the autocorrelation and the cross correlation;
- receiving data signals at the receiver, the data signals having corresponding transmitted data signals;
- and
- applying the weights to the data signals to generate an estimate of the transmitted data signals.
A wireless receiver apparatus, comprising:
- receiver means for processing a plurality of signal paths;
- sampling means for sampling a plurality of signals to generate sampled signals;
- weight calculation means for calculating weights for the plurality of signals, comprising:
- first estimation means for estimating an autocorrelation of the sampled signals;
- second estimation means for estimating a cross correlation between the sampled signals and corresponding transmitted signals;
- and
- weight processing means for calculating the weights as a product of the autocorrelation and the cross correlation;
- and
- weighting means for applying the weights to data signals received at the apparatus and for generating an estimate of corresponding transmitted data signals.
Dependencies are inferred from the claim text.