Methods for estimation and interference cancellation for signal processing
First Claim
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1. A receiver comprising:
- a front end comprising (i) a plurality of fingers and (ii) a finger combiner configured to combine a plurality of received signals from the plurality of fingers for producing a combined signal,a symbol estimator configured to process the combined signal to produce a plurality of symbol estimates,a symbol quality estimator configured for operating on the symbol estimates to generate symbol quality estimates based on said symbol estimates,a processor that combines the symbol estimates with the said symbol quality estimates for at least one of a plurality of user subchannels, andwherein the front end is configured to select fewer than all available signal paths and sectors for use in the symbol estimator.
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Abstract
A receiver in a CDMA system comprises a front end processor that generates a combined signal per source. A symbol estimator processes the combined signal to produce symbol estimates. An S-Matrix Generation module refines these symbol estimates based on the subchannel symbol estimates. An interference canceller is configured for cancelling interference from at least one of the plurality of received signals for producing at least one interference-cancelled signal.
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Citations
71 Claims
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1. A receiver comprising:
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a front end comprising (i) a plurality of fingers and (ii) a finger combiner configured to combine a plurality of received signals from the plurality of fingers for producing a combined signal, a symbol estimator configured to process the combined signal to produce a plurality of symbol estimates, a symbol quality estimator configured for operating on the symbol estimates to generate symbol quality estimates based on said symbol estimates, a processor that combines the symbol estimates with the said symbol quality estimates for at least one of a plurality of user subchannels, and wherein the front end is configured to select fewer than all available signal paths and sectors for use in the symbol estimator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A reception method comprising:
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providing for combining a plurality of received signals from a plurality of fingers for producing a combined signal, wherein providing for combining a plurality of received signals from a plurality of fingers for producing a combined signal comprises selecting fewer than all available signal paths and sectors for use in producing a combined signal, providing for processing the combined signal to produce symbol estimates, providing for operating on the symbol estimates to generate symbol quality estimates, and providing for combining the said symbol estimates with the said symbol quality estimates for at least one of a plurality of user subchannels. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A receiver system comprising:
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a combining means configured for combining a plurality of received signals from a plurality of fingers for producing a combined signal, wherein the combining means comprises means for selecting fewer than all available signal paths and sectors for use in producing the combined signal, a symbol estimation means configured for processing the combined signal to produce symbol estimates, a symbol quality estimation means configured for operating on the symbol estimates to generate symbol quality estimates, and a means for combining said symbol estimates with the said symbol quality estimates for at least one of a plurality of user subchannels. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71)
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Specification