Methods for estimation and interference suppression for signal processing
First Claim
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1. A receiver comprising a processor configured for:
- receiving a combined signal, the combined signal comprising fewer than all available signal paths and sectors;
processing the combined signal to produce one or more symbol estimates;
operating on the one or more symbol estimates to generate one or more symbol quality estimates based on the one or more symbol estimates; and
combining the one or more symbol estimates with the one or more symbol quality estimates for at least one of a plurality of user subchannels.
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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 sub channel 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
62 Claims
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1. A receiver comprising a processor configured for:
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receiving a combined signal, the combined signal comprising fewer than all available signal paths and sectors; processing the combined signal to produce one or more symbol estimates; operating on the one or more symbol estimates to generate one or more symbol quality estimates based on the one or more symbol estimates; and combining the one or more symbol estimates with the one or more symbol quality estimates for at least one of a plurality of user subchannels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A reception method comprising:
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receiving a combined signal, the combined signal derived from one or more received signals received from a plurality of fingers, the plurality of signals comprising fewer than all available signal paths and sectors for use in producing a combined signal; processing the combined signal to produce one or more symbol estimates; operating on the one or more symbol estimates to generate one or more symbol quality estimates; and combining the said one or more symbol estimates with the one or more symbol quality estimates for at least one of a plurality of user subchannels. - View Dependent Claims (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, 50)
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51. A user-channel quality estimator comprising:
a processor configured for calculating an effective receive filter; calculating a desired user'"'"'s instantaneous output power; and calculating one or more instantaneous powers of interference, wherein the one or more instantaneous powers of interference comprise one or more of background noise, inter-symbol interference, intra-cell interference and inter-cell interference. - View Dependent Claims (52, 53, 54, 55, 56)
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57. A method for estimating user-channel quality comprising:
configuring a processor to calculate an effective receive filter; calculate instantaneous user-of-interest power; and calculate at least one instantaneous interference power, wherein the at least one instantaneous interference power comprises one or more of background noise, inter-symbol interference, intra-cell interference and inter-cell interference. - View Dependent Claims (58, 59, 60, 61, 62)
Specification