Method and apparatus for generation and usage of extended golay codes
First Claim
1. A method of communication, comprising:
- obtaining, by an apparatus, an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; and
generating, by the apparatus, a preamble using the extended Golay code.
1 Assignment
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Accused Products
Abstract
A wireless device comprises a code-assignment module configured for assigning Golay codes to be used for spreading, a spreading module configured for spreading data with the Golay codes to produce a signal, wherein the Golay codes are randomly used to spread the data, and a transmitter configured for transmitting the signal. The wireless device may transmit a first beacon signal via a set of quasi-omni beam patterns, and a second beacon signal via a set directional beam patterns. The first beacon signal has a first transmission rate that is higher than the second beacon signal'"'"'s transmission rate. Extended Golay codes having zero periodic cross-correlation may be generated from a Golay code and a set of short sequences. A data block transmitted by the wireless device may comprise Golay codes and data portions, wherein every data portion is between two Golay codes and every Golay code is between two data portions.
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Citations
14 Claims
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1. A method of communication, comprising:
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obtaining, by an apparatus, an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; and generating, by the apparatus, a preamble using the extended Golay code. - View Dependent Claims (2, 3)
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4. An apparatus for communicating, comprising:
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means for obtaining an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; and means for generating a preamble using the extended Golay code. - View Dependent Claims (5, 6)
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7. A non-transitory computer-readable medium encoded with instructions executable to:
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obtain an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; and generate a preamble using the extended Golay code. - View Dependent Claims (11, 12)
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8. An apparatus for communication, comprising:
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first circuitry configured to obtain an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; and second circuitry configured to generate a preamble using the extended Golay code. - View Dependent Claims (9, 10)
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13. An access point, comprising:
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at least one antenna; a first module configured to obtain an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; a second module configured to generate a preamble using the extended Golay code; and a transmitter configured to transmit the preamble via the at least one antenna to an access terminal.
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14. An access terminal, comprising:
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at least one antenna; a first module configured to obtain an extended Golay code selected from a set of extended Golay codes generated from a Golay code and a set of short sequences, said extended Golay codes having zero periodic cross-correlation and each of the short sequences comprising a row of a Fourier Transform matrix or a Hadamard matrix; a second module configured to generate a preamble using the extended Golay code; and a transmitter configured to transmit the preamble via the at least one antenna to an access point.
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Specification