IMPROVED FREQUENCY OFFSET ESTIMATOR
First Claim
Patent Images
1. A method of wireless communication, comprising:
- correlating a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and
analyzing at least one of the two or more separate multipath components and obtaining a frequency offset of the received signal from the analysis.
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Accused Products
Abstract
Determining a frequency offset of a received signal utilizing two or more multipath components of the received signal is provided herein. By way of example, the received signal can be correlated with a synchronization sequence in a time domain or a frequency domain, resulting in separation of the two or more multipath components of the received signal. Analysis of at least one of the multipath components can provide a frequency offset of the received signal. Furthermore, by analyzing the multipath components, estimation of the frequency offset can be improved as compared with single-signal analysis techniques.
28 Citations
50 Claims
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1. A method of wireless communication, comprising:
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correlating a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and analyzing at least one of the two or more separate multipath components and obtaining a frequency offset of the received signal from the analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus that provides wireless communication, comprising:
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a processing module that correlates a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and a multipath analysis module that evaluates at least one of the two or more separate multipath components and obtains a frequency offset of the received signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An apparatus that provides wireless communication, comprising:
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means for correlating a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and means for analyzing at least one of the two or more separate multipath components and for obtaining a frequency offset of the received signal from the analysis.
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34. A processor that provides wireless communication, comprising:
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a first module configured to correlate a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and a second module configured to analyze at least one of the two or more separate multipath components and obtain a frequency offset of the received signal from the analysis.
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35. A computer program product, comprising:
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a computer-readable medium comprising; code for correlating a received signal with a synchronization sequence, wherein a resulting correlated signal comprises two or more separate multipath components; and code for analyzing at least one of the two or more separate multipath components and obtain a frequency offset of the received signal from the analysis.
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36. A method of wireless communication, comprising:
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transmitting a wireless signal and a synchronization sequence; receiving a replica of the wireless signal, the replica comprises at least two multipath components; correlating the replica of the wireless signal with the synchronization sequence, wherein a resulting correlated signal comprises at least two distinct multipath components; and determining a frequency offset between the wireless signal and the replica of the wireless signal from one or more of the at least two distinct multipath components. - View Dependent Claims (37, 38, 39, 40, 41)
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42. An apparatus that facilitates wireless communication, comprising
a transmitter that sends a wireless signal and a synchronization sequence; -
a receiver that obtains from a replica of the wireless signal, the replica comprises at least two multipath components; a signal processor that correlates the replica of the wireless signal with the synchronization sequence, wherein a resulting correlated signal comprises at least two distinct multipath components; and an analysis module that determines a frequency offset between the wireless signal, and the replica of the wireless signal from one or more of the at least two distinct multipath components. - View Dependent Claims (43, 44, 45, 46, 47)
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48. A computer program product, comprising:
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a computer-readable medium comprising; means for transmitting a wireless signal and a synchronization sequence; means for receiving from a replica of the wireless signal, the replica comprises at least two multipath components; means for correlating the replica of the wireless signal with the synchronization sequence, wherein a resulting correlated signal comprises at least two distinct multipath components; and means for determining a frequency offset between the wireless signal and the replica of the wireless signal from one or more of the at least two distinct multipath components.
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49. A processor that provides wireless communication, comprising:
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a first module configured to transmit a wireless signal and a synchronization sequence; a second module configured to receive a replica of the wireless signal, the replica comprises at least two multipath components; a third module configured to correlate the replica of the wireless signal with the synchronization sequence, wherein a resulting correlated signal comprises at least two distinct multipath components; and a fourth module configured to determine a frequency offset between the wireless signal and the replica of the wireless signal from one or more of the at least two distinct multipath components.
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50. A computer-readable medium, comprising:
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computer-readable instructions configured to provide wireless communication, the instructions are executable by at least one computer to; code for transmitting a wireless signal and a synchronization sequence; code for receiving a replica of the wireless signal, the replica comprises at least two multipath components; code for correlating the replica of the wireless signal with the synchronization sequence, wherein a resulting correlated signal comprises at least two distinct multipath components; and code for determining a frequency offset between the wireless signal and the replica of the wireless signal from one or more of the at least two distinct multipath components.
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Specification