Method for timing detection
First Claim
Patent Images
1. A wireless communication system, comprising:
- a sampling module thatreceives an input,samples a first portion and a second portion of a channel of said input using a sampling time, andgenerates an output;
a correlator module thatselectively correlates said first portion and said second portion based on said input and said output,generates correlation samples, andcalculates an offset based on said correlation samples;
a timing module that selectively adjusts said sampling time based on said offset.
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Abstract
A wireless communication system comprises a sampling module that samples a first portion and a second portion of a channel using a sampling time. A correlator module selectively correlates the first portion and the second portion, generates correlation samples, and calculates an offset based on the correlation samples. A timing module selectively adjusts the sampling time based on the offset.
23 Citations
39 Claims
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1. A wireless communication system, comprising:
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a sampling module that receives an input, samples a first portion and a second portion of a channel of said input using a sampling time, and generates an output; a correlator module that selectively correlates said first portion and said second portion based on said input and said output, generates correlation samples, and calculates an offset based on said correlation samples; a timing module that selectively adjusts said sampling time based on said offset.
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2. A wireless communication system comprising:
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a sampling module that samples a first portion and a second portion of a channel using a sampling time; a correlator module that selectively correlates said first portion and said second portion, generates correlation samples, and calculates an offset based on said correlation samples; and a timing module that selectively adjusts said sampling time based on said offset, wherein said correlator module estimates a location of said second portion in a traffic channel based on said sampling time of a control channel and based on a burst detected in said control channel. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless communication system comprising:
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a sampling module that samples a first portion and a second portion of a channel using a sampling time; a correlator module that selectively correlates said first portion and said second portion, generates correlation samples, and calculates an offset based on said correlation samples; a timing module that selectively adjusts said sampling time based on said offset; and a burst detector module that communicates with said sampling module, detects a burst in a control channel, and generates a burst-detect signal when a moving average of one of N phases is less than a predetermined threshold, wherein said one of N phases is an array of Nth sample of every symbol in a signal sampled at a sampling rate of N samples per symbol, and N is an integer greater than 1. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method for operating a wireless communication system, the method comprising:
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receiving an input; sampling a first portion and a second portion of a channel of said input using a sampling time and generating an output, wherein said wireless communication system communicates via said channel; selectively correlating said first portion and said second portion based on said input and said output; generating correlation samples; calculating an offset based on said correlation samples; and selectively adjusting said sampling time based on said offset.
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22. A method for operating a wireless communication system, the method comprising:
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sampling a first portion and a second portion of a channel using a sampling time, wherein said wireless communication system communicates via said channel; selectively correlating said first portion and said second portion; generating correlation samples; calculating an offset based on said correlation samples; selectively adjusting said sampling time based on said offset; and estimating a location of said second portion in a traffic channel based on said sampling time of a control channel and based on a burst detected in said control channel. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for operating a wireless communication system, the method comprising:
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sampling a first portion and a second portion of a channel using a sampling time, wherein said wireless communication system communicates via said channel; selectively correlating said first portion and said second portion; generating correlation samples; calculating an offset based on said correlation samples; selectively adjusting said sampling time based on said offset; detecting a burst in a control channel; and generating a burst-detect signal when a moving average of one of N phases is less than a predetermined threshold, wherein said one of N phases is an array of Nth sample of every symbol in a signal sampled at a sampling rate of N samples per symbol, and N is an integer greater than 1. - View Dependent Claims (35, 36, 37, 38, 39)
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Specification