Frame format for millimeter-wave systems
First Claim
Patent Images
1. A millimeter wave transmitter, comprising:
- a Golay code generator configured to produce at least one Golay code, a sequence generator configured for generating at least one of a plurality of sequences, each of the plurality of sequences denoting one of a plurality of transmission modes, and a spreader configured for spreading at least one of the plurality of sequences with the at least one Golay code for producing at least one spread sequence, and selecting the at least one spread sequence in response to at least one transmission mode to generate at least one of a SYNC field and an SFD field.
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Abstract
A single frame format is employed by a millimeter wave communication system for single-carrier and OFDM signaling. A Golay-coded sequence in the start frame delimiter (SFD) field identifies the data transmission as single carrier or OFDM. Complementary Golay codes are employed in a channel estimation field to allow a perfect estimate of the multipath channel to be made. Marker codes generated from Golay codes are inserted periodically between slots for tracking and/or for reacquiring timing, frequency, and multipath channel estimates. The length of the marker codes may be adapted relative to the multipath delay spread.
146 Citations
89 Claims
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1. A millimeter wave transmitter, comprising:
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a Golay code generator configured to produce at least one Golay code, a sequence generator configured for generating at least one of a plurality of sequences, each of the plurality of sequences denoting one of a plurality of transmission modes, and a spreader configured for spreading at least one of the plurality of sequences with the at least one Golay code for producing at least one spread sequence, and selecting the at least one spread sequence in response to at least one transmission mode to generate at least one of a SYNC field and an SFD field. - View Dependent Claims (2, 3)
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4. A method for generating a millimeter wave signal, comprising:
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providing for generating at least one Golay code, providing for generating a plurality of sequences, each of the plurality of sequences denoting one of a plurality of transmission modes, and providing for spreading at least one of the plurality of sequences with the at least one Golay code for producing at least one spread sequence, and selecting the at least one spread sequence in response to at least one transmission mode to generate at least one of a SYNC field and an SFD field. - View Dependent Claims (5, 6, 7, 8)
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9. A millimeter wave transmission system, comprising:
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a Golay code generation means configured to generate at least one Golay code, a sequence generation means configured for generating at least one of a plurality of sequences, each of the plurality of sequences denoting one of a plurality of transmission modes, and a spreading means configured for spreading at least one of the plurality of sequences with the at least one Golay code for producing at least one spread sequence, and selecting the at least one spread sequence in response to at least one transmission mode to generate at least one of a SYNC field and an SFD field. - View Dependent Claims (10, 11)
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12. A millimeter wave receiver comprising:
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a Golay code generator configured to produce at least one Golay code, and a despreader configured for employing the at least one Golay code for despreading at least one of a SYNC field and an SFD field in a received signal to produce a despread sequence, the despreader further comprising a sequence detector configured for determining which of a plurality of transmission modes the despread sequence denotes. - View Dependent Claims (13, 14, 15)
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16. A method for receiving a millimeter wave signal, comprising:
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providing for generating at least one Golay code, providing for employing the at least one Golay code for despreading at least one of a SYNC field and an SFD field in a received signal to produce a despread sequence, and providing for determining which of a plurality of transmission modes the despread sequence denotes. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A millimeter wave receiver system, comprising:
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a Golay code generation means configured to produce at least one Golay code, a despreading means configured for employing the at least one Golay code for despreading at least one of a SYNC field and an SFD field in a received signal to produce a despread sequence, and a sequence-detection means configured for determining which of a plurality of transmission modes the despread sequence denotes. - View Dependent Claims (23, 24, 25)
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26. A millimeter wave transmitter, comprising:
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a Golay code generator configured to produce a pair of complementary Golay codes, and a sequence generator configured for generating a channel-estimation sequence, and a spreader configured for spreading the channel-estimation sequence with the pair of complementary Golay codes for producing at least one spread sequence configured for producing at least one Dirac pulse when combining matched-filter outputs at a receiver. - View Dependent Claims (27)
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28. A method for generating a millimeter wave signal, comprising:
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providing for generating a pair of complementary Golay codes, and providing for generating a channel-estimation sequence, and providing for spreading the channel-estimation sequence with the pair of complementary Golay codes for producing at least one spread sequence configured for producing at least one Dirac pulse when combining matched-filter outputs at a receiver. - View Dependent Claims (29, 30, 31)
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32. A millimeter wave transmission system, comprising:
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a Golay code generation means configured for generating a pair of complementary Golay codes, and a sequence generation means configured for generating a channel-estimation sequence, and a spreading means configured for spreading the channel-estimation sequence with the pair of complementary Golay codes for producing at least one spread sequence configured for producing at least one Dirac pulse when combining matched-filter outputs at a receiver. - View Dependent Claims (33)
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34. A millimeter wave receiver, comprising:
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a Golay code generator configured to produce a pair of complementary Golay codes, and a matched filter configured to employ the complementary Golay codes for matched filtering a received signal comprising at least one channel-estimation sequence spread with the pair of complementary Golay codes, the matched filter further comprising a combiner configured for combining matched-filter outputs to produce at least one Dirac pulse. - View Dependent Claims (35)
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36. A method for receiving a millimeter wave signal, comprising:
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providing for generating a pair of complementary Golay codes, and providing for employing the complementary Golay codes for matched filtering a received signal to produce a plurality of matched-filter outputs, the received signal comprising at least one channel-estimation sequence spread with the pair of complementary Golay codes, and providing for combining matched-filter outputs to produce at least one Dirac pulse. - View Dependent Claims (37, 38, 39)
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40. A millimeter wave receiver system, comprising:
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a Golay code generation means configured to produce a pair of complementary Golay codes, a matched filtering means configured to employ the complementary Golay codes for matched filtering a received signal comprising at least one channel-estimation sequence spread with the pair of complementary Golay code, and a combining means configured for combining outputs of the matched-filtering means to produce at least one Dirac pulse. - View Dependent Claims (41)
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42. A millimeter wave transmitter, comprising:
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a Golay code generator configured to produce at least one Golay code, a marker-code generator configured for producing a plurality of marker codes from the at least one Golay codes, and a code-insertion element configured for periodically inserting the marker codes between data slots in a sequence of data slots to enable a receiver to perform at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (43, 44, 45, 46)
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47. A method for generating a millimeter wave signal, comprising:
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providing for generating at least one Golay code, providing for generating a plurality of marker codes from the at least one Golay code, and providing for periodically inserting the marker codes between data slots in a sequence of data slots to enable a receiver to perform at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (48, 49, 50, 51, 52, 53)
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54. A millimeter wave transmission system, comprising:
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a Golay code generation means configured to produce at least one Golay code, a marker-code generation means configured for producing a plurality of marker codes from the at least one Golay codes, and a code-insertion means configured for periodically inserting the marker codes between data slots in a sequence of data slots to enable a receiver to perform at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (55, 56, 57, 58)
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59. A millimeter wave receiver, comprising:
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a Golay code generator configured to produce at least one Golay code corresponding to at least one of a plurality of marker codes periodically inserted between data slots in a received transmission, and a synchronization engine configured for employing the at least one Golay code to process the plurality of marker codes for performing at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (60, 61, 62)
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63. A method for receiving a millimeter wave signal, comprising:
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providing for generating at least one Golay code corresponding to at least one of a plurality of marker codes periodically inserted between data slots in a received transmission, and providing for employing the at least one Golay code to process the plurality of marker codes for performing at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (64, 65, 66, 67, 68)
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69. A millimeter wave receiver system, comprising:
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a Golay code generation means configured to produce at least one Golay code corresponding to at least one of a plurality of marker codes periodically inserted between data slots in a received transmission, and a synchronization engine means configured for employing the at least one Golay code to process the plurality of marker codes for performing at least one of a set of functions, comprising tracking, timing acquisition, frequency acquisition, and channel estimation. - View Dependent Claims (70, 71, 72)
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73. A method for providing a sub-slot transmission sequence with at least one prefix, wherein the sub-slot transmission sequence employs a Fourier transform of length N, the method comprising:
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providing for generating a Golay sequence comprising M symbols wherein M<
N,providing for allocating a sub-slot length of N−
M symbols, andproviding for employing the Golay sequence to produce the at least one prefix, each of the at least one prefix comprising M symbols. - View Dependent Claims (74, 75, 76, 77, 78, 79)
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80. An apparatus configured for generating a sub-slot transmission sequence with at least one prefix, wherein the apparatus employs a Fourier transform of length N, the apparatus comprising:
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a Golay sequence generator configured for generating a Golay sequence comprising M symbols wherein M<
N,a sub-slot sequence generator configured for generating a Golay-code modulated data sequence having a sub-slot length of N−
M symbols, anda prefix generator configured for employing the Golay sequence to produce the at least one prefix, each of the at least one prefix comprising M symbols. - View Dependent Claims (81, 82, 83, 84)
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85. A system configured for generating a sub-slot transmission sequence comprising at least one prefix, wherein the system employs a Fourier transform of length N, the apparatus comprising:
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a Golay sequence generation means configured for generating a Golay sequence comprising M symbols wherein M<
N,a sub-slot sequence generation means configured for generating a Golay-code modulated data sequence having a sub-slot length of N−
M symbols, anda prefix generation means configured for employing the Golay sequence to produce the at least one prefix, each of the at least one prefix comprising M symbols. - View Dependent Claims (86, 87, 88, 89)
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Specification