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US5487069A Expired / Lapsed US ⏱️ 0.0 years remaining

Wireless LAN

Assignee: Commonwealth Scientific and Industrial Research Organisation
•
Filing: 1993-11-23
•
Granted: 1996-01-23
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Expires: 2013-11-23
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Abstract

Abstract The present invention discloses a wireless LAN, a peer-to-peer wireless LAN, a wireless transceiver and a method of transmitting data, all of which are capable of operating at frequencies in excess of 10 GHz and in multipath transmission environments. This is achieved by a combination of techniques which enable adequate performance in the presence of multipath transmission paths where the reciprocal of the information bit rate of the transmission is short relative to the time delay differences between significant ones of the multipath transmission paths. In the LANs the mobile transceivers are each connected to, and powered by, a corresponding portable electronic device with computational ability.

Inventors

  • 👤 John D. O'Sullivan
  • 👤 Graham R. Daniels
  • 👤 Terence M. P. Percival
  • 👤 Diethelm I. Ostry
  • 👤 John F. Deane

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 08:29
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/004; H04L1/0056; H04L1/0059; H04L1/006; H04L1/0061; H04L1/0071; H04L5/00; H04L5/02; H04L5/023; H04L1/12; H04L1/16; H04L1/18; H04L1/1809

Claims Analysis

Total Claims: 82
Claim 1
Independent Claim 191 words
A wireless LAN comprising: a plurality of hub transceivers coupled together to constitute a plurality of data sources and destinations; and a plurality of mobile transceivers each coupled to data processing means and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, said transceivers being for data transceiving operation by radio transmissions to one of said hub receivers in a confined multipath environment, and each transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 2
Dependent Claim 191 words
A wireless LAN comprising: a plurality of hub transceivers coupled together to constitute a plurality of data sources and destinations; and a plurality of mobile transceivers each coupled to data processing means and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, said transceivers being for data transceiving operation by radio transmissions to one of said hub receivers in a confined multipath environment, and each transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 3
Dependent Claim 31 words
A wireless LAN as claimed in claim 1, wherein said transmission signal processing means further comprises means to provide data reliability enhancement to said input data passed to said modulation means.
Claim 4
Dependent Claim 17 words
A wireless LAN as claimed in claim 2, wherein said data reliability enhancement is Forward Error Correction.
Claim 5
Dependent Claim 35 words
A wireless LAN as claimed in claim 3, wherein said transmission signal processing means further comprises means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said input data.
Claim 6
Dependent Claim 17 words
A wireless LAN as claimed in claim 4, wherein said blocks of said input data are bits.
Claim 7
Dependent Claim 23 words
A wireless LAN as claimed in claim 1, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 8
Dependent Claim 39 words
A wireless LAN as claimed in claim 6, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 9
Dependent Claim 34 words
A wireless LAN as claimed in claim 1, wherein said reception signal processing means comprises demodulation means for demodulating received symbols of said plurality of sub-channels into output data for said output data channel.
Claim 10
Dependent Claim 39 words
A wireless LAN as claimed in claim 1, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 11
Dependent Claim 220 words
A wireless LAN comprising: a plurality of hub transceivers coupled together to constitute a plurality of data sources and destinations; and a plurality of mobile transceivers each coupled to data processing means and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, said transceivers being for data transceiving operation by radio transmissions to one of said hub receivers in a confined multipath environment, and each transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to a input data channel, and said reception signal processing means in turn coupled to a output data channel, each said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply a data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said ensemble modulation means, for interleaving blocks of said data.
Claim 12
Dependent Claim 220 words
A wireless LAN comprising: a plurality of hub transceivers coupled together to constitute a plurality of data sources and destinations; and a plurality of mobile transceivers each coupled to data processing means and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, said transceivers being for data transceiving operation by radio transmissions to one of said hub receivers in a confined multipath environment, and each transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to a input data channel, and said reception signal processing means in turn coupled to a output data channel, each said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply a data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said ensemble modulation means, for interleaving blocks of said data.
Claim 13
Dependent Claim 17 words
A wireless LAN as claimed in claim 10, wherein said data reliability enhancement is Forward Error Correction.
Claim 14
Dependent Claim 17 words
A wireless LAN as claimed in claim 11, wherein said blocks of said input data are bits.
Claim 15
Dependent Claim 23 words
A wireless LAN as claimed in claim 10, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 16
Dependent Claim 39 words
A wireless LAN as claimed in claim 13, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 17
Dependent Claim 34 words
A wireless LAN as claimed in claim 10, wherein said reception signal processing means comprises demodulation means for demodulating received symbols of said plurality of sub-channels into output data for said output data channel.
Claim 18
Dependent Claim 39 words
A wireless LAN as claimed in claim 10, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 19
Dependent Claim 173 words
A peer-to-peer wireless LAN comprising: a plurality of mobile transceivers for data transceiving operation by radio transmissions between ones thereof in a confined multipath environment, each said transceiver being coupled to a data processing means, and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, each said transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 20
Dependent Claim 173 words
A peer-to-peer wireless LAN comprising: a plurality of mobile transceivers for data transceiving operation by radio transmissions between ones thereof in a confined multipath environment, each said transceiver being coupled to a data processing means, and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, each said transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 21
Dependent Claim 32 words
A peer-to-peer wireless LAN as claimed in claim 17, wherein said transmission signal processing means further comprises means to provide data reliability enhancement to said input data passed to said modulation means.
Claim 22
Dependent Claim 18 words
A peer-to-peer wireless LAN as claimed in claim 18, wherein said data reliability enhancement is Forward Error Correction.
Claim 23
Dependent Claim 36 words
A peer-to-peer wireless LAN as claimed in claim 19, wherein said transmission signal processing means further comprises means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said input data.
Claim 24
Dependent Claim 17 words
A peer-to-peer wireless LAN as claimed in claim 20, wherein said blocks of said data are bits.
Claim 25
Dependent Claim 24 words
A peer-to-peer wireless LAN as claimed in claim 17, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 26
Dependent Claim 40 words
A peer-to-peer wireless LAN as claimed in claim 22, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 27
Dependent Claim 35 words
A peer-to-peer wireless LAN as claimed in claim 17, wherein said reception signal processing means comprises demodulation means for demodulating received symbols of said plurality of sub-channels into output data for said output data channel.
Claim 28
Dependent Claim 40 words
A peer-to-peer wireless LAN as claimed in claim 17, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 29
Dependent Claim 202 words
A peer-to-peer wireless LAN comprising: a plurality of mobile transceivers for data transceiving operation by radio transmissions between ones thereof in a confined multipath environment, each said transceiver being coupled to a data processing means, and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, each said transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said ensemble modulation means and means, interposed between said data reliability enhancement means and said ensemble modulation means, for interleaving blocks of said data.
Claim 30
Dependent Claim 202 words
A peer-to-peer wireless LAN comprising: a plurality of mobile transceivers for data transceiving operation by radio transmissions between ones thereof in a confined multipath environment, each said transceiver being coupled to a data processing means, and between each said data processing means and a corresponding said transceiver data passes to be transmitted or received, each said transceiver comprising: antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, each said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said ensemble modulation means and means, interposed between said data reliability enhancement means and said ensemble modulation means, for interleaving blocks of said data.
Claim 31
Dependent Claim 17 words
A peer-to-peer LAN as claimed in claim 26, wherein said data reliability enhancement is Forward Error Correction.
Claim 32
Dependent Claim 17 words
A peer-to-peer LAN as claimed in claim 27, wherein said blocks of said input data are bits.
Claim 33
Dependent Claim 23 words
A peer-to-peer LAN as claimed in claim 26, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 34
Dependent Claim 39 words
A peer-to-peer LAN as claimed in claim 29, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 35
Dependent Claim 35 words
A peer-to-peer wireless LAN as claimed in claim 26, wherein said reception signal processing means comprises demodulation means for demodulating received symbols of said plurality of sub-channels into output data for said output data channel.
Claim 36
Dependent Claim 40 words
A peer-to-peer wireless LAN as claimed in claim 26, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 37
Dependent Claim 127 words
A transceiver for operation in a confined multipath transmission environment, said transceiver comprising antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 38
Dependent Claim 127 words
A transceiver for operation in a confined multipath transmission environment, said transceiver comprising antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, said transceiver being operable to transmit and receive data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 39
Dependent Claim 30 words
A transceiver as claimed in claim 33, wherein said transmission signal processing means further comprises means to provide data reliability enhancement to said input data passed to said modulation means.
Claim 40
Dependent Claim 16 words
A transceiver as claimed in claim 34, wherein said data reliability enhancement is Forward Error Correction.
Claim 41
Dependent Claim 34 words
A transceiver as claimed in claim 35, wherein said transmission signal processing means further comprises means, interposed between said input data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 42
Dependent Claim 15 words
A transceiver as claimed in claim 36, wherein said blocks of said data are bits.
Claim 43
Dependent Claim 22 words
A transceiver as claimed in claim 33, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 44
Dependent Claim 38 words
A transceiver as claimed in claim 38, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 45
Dependent Claim 33 words
A transceiver as claimed in claim 33, wherein said reception signal processing means comprises demodulation means for demodulating received symbols of said plurality of sub-channels into output data for said output data channel.
Claim 46
Dependent Claim 38 words
A transceiver as claimed in claim 33, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 47
Dependent Claim 154 words
A transceiver for operation in a confined multipath transmission environment, said transceiver comprising antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 48
Dependent Claim 154 words
A transceiver for operation in a confined multipath transmission environment, said transceiver comprising antenna means coupled to transmission signal processing means and to reception signal processing means, said transmission signal processing means in turn coupled to an input data channel, and said reception signal processing means in turn coupled to an output data channel, said transceiver being operable to transmit and receive data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 49
Dependent Claim 16 words
A transceiver as claimed in claim 42, wherein said data reliability enhancement is Forward Error Correction.
Claim 50
Dependent Claim 16 words
A transceiver as claimed in claim 43, wherein said blocks of said input data are bits.
Claim 51
Dependent Claim 22 words
A transceiver as claimed in claim 42, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 52
Dependent Claim 38 words
A transceiver as claimed in claim 45, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 53
Dependent Claim 33 words
A transceiver as claimed in claim 42, wherein said reception signal processing means comprises ensemble demodulation means for demodulating received symbols of said plurality of sub-channels into data for said output data channel.
Claim 54
Dependent Claim 38 words
A transceiver as claimed in claim 42, further comprising switching means for selectively coupling said antenna means to said transmission signal processing means for transmission of data and to said reception signal processing means for reception of data.
Claim 55
Dependent Claim 100 words
A transmitter for operation in a confined multipath transmission environment, said transmitter comprising antenna means coupled to transmission signal processing means in turn coupled to an input data channel, said transmitter being operable to transmit data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 56
Dependent Claim 100 words
A transmitter for operation in a confined multipath transmission environment, said transmitter comprising antenna means coupled to transmission signal processing means in turn coupled to an input data channel, said transmitter being operable to transmit data at radio frequencies in excess of 10 GHz, and said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths.
Claim 57
Dependent Claim 29 words
A transmitter as claimed in claim 49, wherein said transmission signal processing means further comprises means to provide data reliability enhancement to said data passed to said modulation means.
Claim 58
Dependent Claim 16 words
A transmitter as claimed in claim 50, wherein said data reliability enhancement is Forward Error Correction.
Claim 59
Dependent Claim 33 words
A transmitter as claimed in claim 51, wherein said transmission signal processing means further comprises means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 60
Dependent Claim 16 words
A transmitter as claimed in claim 52, wherein said blocks of said input data are bits.
Claim 61
Dependent Claim 22 words
A transmitter as claimed in claim 49, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 62
Dependent Claim 38 words
A transmitter as claimed in claim 54, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 63
Dependent Claim 127 words
A transmitter for operation in a confined multipath transmission environment, said transmitter comprising antenna means coupled to transmission signal processing means in turn coupled to an input data channel, said transmitter being operable to transmit data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 64
Dependent Claim 127 words
A transmitter for operation in a confined multipath transmission environment, said transmitter comprising antenna means coupled to transmission signal processing means in turn coupled to an input data channel, said transmitter being operable to transmit data at radio frequencies, said transmission signal processing means comprising modulation means for modulating input data of said input data channel into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths, means to apply data reliability enhancement to said data passed to said modulation means and means, interposed between said data reliability enhancement means and said modulation means, for interleaving blocks of said data.
Claim 65
Dependent Claim 16 words
A transmitter as claimed in claim 56, wherein said data reliability enhancement is Forward Error Correction.
Claim 66
Dependent Claim 16 words
A transmitter as claimed in claim 57, wherein said blocks of said input data are bits.
Claim 67
Dependent Claim 22 words
A transmitter as claimed in claim 56, wherein said modulation means performs, for each said sub-channel, multi-level amplitude and/or phase modulation (mQAM).
Claim 68
Dependent Claim 38 words
A transmitter as claimed in claim 59, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 69
Independent Claim 114 words
A method for transmitting data in a confined multipath transmission environment at radio frequencies in excess of 10 GHz, said data being provided by an input data channel coupled to transmission signal processing means in turn coupled to antenna means, said method comprising the steps of: modulating said data, by modulation means of said transmission signal processing means, into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths; and transmitting, by said antenna means, said sub-channel symbols at said radio frequencies in excess of 10 GHz.
Claim 70
Independent Claim 114 words
A method for transmitting data in a confined multipath transmission environment at radio frequencies in excess of 10 GHz, said data being provided by an input data channel coupled to transmission signal processing means in turn coupled to antenna means, said method comprising the steps of: modulating said data, by modulation means of said transmission signal processing means, into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of the time delay of significant ones of non-direct transmission paths; and transmitting, by said antenna means, said sub-channel symbols at said radio frequencies in excess of 10 GHz.
Claim 71
Dependent Claim 25 words
A method as claimed in claim 61, comprising the further step of providing data reliability enhancement to said data in advance of said modulation step.
Claim 72
Dependent Claim 16 words
A method as claimed in claim 62, wherein said data reliability enhancement is Forward Error Correction.
Claim 73
Dependent Claim 31 words
A method as claimed in claim 63, comprising the further step of interleaving blocks of said input data between the steps of providing data reliability enhancement monitoring and step of modulation.
Claim 74
Dependent Claim 15 words
A method as claimed in claim 64, wherein said blocks of input data are bits.
Claim 75
Dependent Claim 19 words
A method as claimed in claim 61, wherein said step of modulation is multi-level amplitude and/or phase modulation (mQAM).
Claim 76
Dependent Claim 38 words
A method as claimed in claim 66, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).
Claim 77
Independent Claim 109 words
A method for transmitting data in a confined multipath transmission environment of radio frequencies, said data being provided by an input data channel coupled to transmission signal processing means in turn coupled to antenna means, said method comprising the steps of: applying data reliability enhancement to said data; interleaving blocks of said enhanced data; modulating said data, by modulation means of said transmission signal processing means, into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of significant ones of non-direct transmission paths; and transmitting, by said antenna means, said sub-channel symbols.
Claim 78
Independent Claim 109 words
A method for transmitting data in a confined multipath transmission environment of radio frequencies, said data being provided by an input data channel coupled to transmission signal processing means in turn coupled to antenna means, said method comprising the steps of: applying data reliability enhancement to said data; interleaving blocks of said enhanced data; modulating said data, by modulation means of said transmission signal processing means, into a plurality of sub-channels comprised of a sequence of data symbols such that the period of a sub-channel symbol is longer than a predetermined period representative of significant ones of non-direct transmission paths; and transmitting, by said antenna means, said sub-channel symbols.
Claim 79
Dependent Claim 16 words
A method as claimed in claim 68, wherein said data reliability enhancement is Forward Error Correction.
Claim 80
Dependent Claim 15 words
A method as claimed in claim 69, wherein said blocks of input data are bits.
Claim 81
Dependent Claim 19 words
A method as claimed in claim 68, wherein said steps of modulation is multi-level amplitude and/or phase modulation (mQAM).
Claim 82
Dependent Claim 38 words
A method as claimed in claim 71, wherein said mQAM modulation is one of: multi-level amplitude phase shift keying (mASK), permutation modulation, binary phase shift keying (BPSK), multi-level phase shift keying (mPSK) and multi-level amplitude phase keying (mAPK).

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