SYSTEMS AND METHODS FOR DETECTING TRANSMISSIONS BASED ON 32-POINT AND 64-POINT FAST FOURIER TRANSFORMS
First Claim
1. A method of wireless communication, comprising:
- receiving one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at one or more indices of the STF that are a separated by a multiple of at least four;
determining a first correlation between the STF and the STF shifted by a first shift length;
determining a second correlation between the STF and the STF shifted by a second shift length;
determining a fast Fourier transform (FFT) size based on the first correlation and the second correlation; and
decoding one or more data symbols based at least in part on the determined FFT size.
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Accused Products
Abstract
Systems, methods, and devices for communicating and detecting training sequences are described herein. In one aspect, a method of wireless communication is provided. The method comprises receiving one or more short training field (STF) sequences comprising sixty-four values or less. The STF sequences comprise zero and non-zero values. The non-zero values are located at one or more indices of the STF that are separated by a multiple of at least four. The method further comprises determining a first correlation between the STF and the STF shifted by a first shift length. The method further comprises determining a second correlation between the STF and the STF shifted by a second shift length. The method further comprises determining a fast Fourier transform (FFT) size based on the first correlation and the second correlation. The method further comprises decoding one or more data symbols based at least in part on the determined FFT size.
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Citations
112 Claims
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1. A method of wireless communication, comprising:
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receiving one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at one or more indices of the STF that are a separated by a multiple of at least four; determining a first correlation between the STF and the STF shifted by a first shift length; determining a second correlation between the STF and the STF shifted by a second shift length; determining a fast Fourier transform (FFT) size based on the first correlation and the second correlation; and decoding one or more data symbols based at least in part on the determined FFT size. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of wireless communication, comprising:
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generating one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at indices of the first subset that are a multiple of eight; and transmitting a data unit comprising the one or more STF sequences over a wireless channel. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A wireless device comprising:
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a receiver configured to receive one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at one or more indices of the STF that are separated by a multiple of at least four; and a processor configured to; determine a first correlation between the STF and the STF shifted by a first shift length; determine a second correlation between the STF and the STF shifted by a second shift length; determine a fast Fourier transform (FFT) size based on the first correlation and the second correlation; and decode one or more data symbols based at least in part on the determined FFT size. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A wireless device comprising:
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a processor configured to generate one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at indices of the first subset that are a multiple of eight; and a transmitter configured to transmit a data unit comprising the one or more STF sequences over a wireless channel. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. An apparatus for wireless communication, comprising:
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means for receiving one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at one or more indices of the STF that are separated by a multiple of at least four; means for determining a first correlation between the STF and the STF shifted by a first shift length; means for determining a second correlation between the STF and the STF shifted by a second shift length; means for determining a fast Fourier transform (FFT) size based on the first correlation and the second correlation; and means for decoding one or more data symbols based at least in part on the determined FFT size. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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74. An apparatus for wireless communication, comprising:
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means for generating one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at indices of the first subset that are a multiple of eight; and means for transmitting a data unit comprising the one or more STF sequences over a wireless channel. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83, 84)
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85. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:
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receive one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at one or more indices of the STF that are separated by a multiple of at least four; determine a first correlation between the STF and the STF shifted by a first shift length; determine a second correlation between the STF and the STF shifted by a second shift length; determine a fast Fourier transform (FFT) size based on the first correlation and the second correlation; and decode one or more data symbols based at least in part on the determined FFT size. - View Dependent Claims (86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
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102. A non-transitory computer-readable medium for wireless communication comprising code that, when executed, causes an apparatus to:
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generate one or more short training field (STF) sequences comprising sixty-four tone values or less, wherein the one or more STF sequences comprise zero and non-zero tone values, wherein the non-zero tone values are located at indices of the first subset that are a multiple of eight; and transmit a data unit comprising the one or more STF sequences over a wireless channel. - View Dependent Claims (103, 104, 105, 106, 107, 108, 109, 110, 111, 112)
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Specification