Processing for improved performance and reduced pilot
First Claim
1. A communication system including a receiver for receiving at least one of a plurality of channels in a communication signal, the receiver comprising:
- an adaptive matched filter for receiving communication signals producing a filtered signal by using a weighting signal;
a rake receiver for receiving the communication signals and a pseudo-noise signal generated for a selected channel and producing a filter weighting signal;
means for defining the filter weighting signal with a correction signal, said correction signal to produce the weighting signal used by said adaptive matched filter;
a channel despreader for said selected channel coupled to said adaptive matched filter output for despreading said filtered signal using the pseudo-noise signal generated for said selected channel to produce a despread channel signal of said selected channel;
a pilot channel despreader for a pilot channel coupled to said adaptive matched filter output for despreading said filtered signal using a pseudo-noise signal generator for said pilot channel to produce a despread pilot signal of said pilot channel;
a hard decision processor in association with a complex conjugate processor for receiving the despread channel signal of said selected channel and producing said correction signal; and
means utilizing at least said despread pilot signal for producing a phase correction signal which is applied to produce phase-corrected channel signals.
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Abstract
The present invention is a user equipment (UE), including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
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Citations
15 Claims
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1. A communication system including a receiver for receiving at least one of a plurality of channels in a communication signal, the receiver comprising:
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an adaptive matched filter for receiving communication signals producing a filtered signal by using a weighting signal;
a rake receiver for receiving the communication signals and a pseudo-noise signal generated for a selected channel and producing a filter weighting signal;
means for defining the filter weighting signal with a correction signal, said correction signal to produce the weighting signal used by said adaptive matched filter;
a channel despreader for said selected channel coupled to said adaptive matched filter output for despreading said filtered signal using the pseudo-noise signal generated for said selected channel to produce a despread channel signal of said selected channel;
a pilot channel despreader for a pilot channel coupled to said adaptive matched filter output for despreading said filtered signal using a pseudo-noise signal generator for said pilot channel to produce a despread pilot signal of said pilot channel;
a hard decision processor in association with a complex conjugate processor for receiving the despread channel signal of said selected channel and producing said correction signal; and
means utilizing at least said despread pilot signal for producing a phase correction signal which is applied to produce phase-corrected channel signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification