WO1998037638A3 - Highly bandwidth-efficient communications - Google Patents

Highly bandwidth-efficient communications Download PDF

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Publication number
WO1998037638A3
WO1998037638A3 PCT/US1998/003591 US9803591W WO9837638A3 WO 1998037638 A3 WO1998037638 A3 WO 1998037638A3 US 9803591 W US9803591 W US 9803591W WO 9837638 A3 WO9837638 A3 WO 9837638A3
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WO
Grant status
Application
Patent type
Prior art keywords
multipoint
spectral
spatial
interference cancellation
nulling
Prior art date
Application number
PCT/US1998/003591
Other languages
French (fr)
Other versions
WO1998037638A2 (en )
Inventor
Brian G Agee
Matthew Bromberg
Derek Gerlach
David Gibbons
James Timothy Golden
Minni Ho
Elliott Hoole
Mary Jesse
Robert Lee Maxwell
Robert G Mechaley Jr
Robert Ray Naish
David J Nix
David James Ryan
David Stephenson
Original Assignee
At & T Wireless Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/023Multiplexing of multicarrier modulation signals
    • H04L5/026Multiplexing of multicarrier modulation signals using code division

Abstract

A discret multitone stacked-carrier spread spectrum communication method is based on frequency domain spreading including multiplication of a baseband signal by a set of superimposed, or stacked, complex sinusoid carrier waves. In a preferred embodiment, the spreading involves energizing the bins of a large Fast Fourier transform (FFT). This provides a considerable savings in computational complexity for moderate output FFT sizes. Point-to-multipoint and multipoint-to-multipoint (nodeless) network topologies are possible. A code-nulling method is included for interference cancellation and enhanced signal separation by exploiting the spectral diversity of the various sources. The basic method may be extended to include multielement antenna array nulling methods for interference cancellation and enhanced signal separation using spatial separation. Such methods permit directive and retrodirective transmission systems that adapt or can be adapted to the radio environment. Such systems are compatible with bandwidth-on-demand and higher-order modulation formats and use advanced adaptation algorithms. In a specific embodiment the spectral and spatial components of the adaptive weights are calculated in a unified operation based on the mathematical analogy between the spectral and spatial descriptions of the airlink.
PCT/US1998/003591 1997-02-24 1998-02-24 Highly bandwidth-efficient communications WO1998037638A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US80461997 true 1997-02-24 1997-02-24
US08/804,619 1997-02-24

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE1998633187 DE69833187D1 (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications
CA 2283859 CA2283859C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications
DE1998633187 DE69833187T2 (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications
JP53698498A JP4175521B2 (en) 1997-02-24 1998-02-24 High bandwidth efficiency communications
EP19980910043 EP0966797B8 (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Publications (2)

Publication Number Publication Date
WO1998037638A2 true WO1998037638A2 (en) 1998-08-27
WO1998037638A3 true true WO1998037638A3 (en) 1999-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/003591 WO1998037638A3 (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Country Status (1)

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WO (1) WO1998037638A3 (en)

Cited By (6)

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US6782039B2 (en) 1997-02-24 2004-08-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6785300B2 (en) 1997-02-06 2004-08-31 At&T Wireless Services, Inc. Delay compensation
US8315327B2 (en) 2000-06-13 2012-11-20 Aloft Media, Llc Apparatus for transmitting a signal including transmit data to a multiple-input capable node
US8693432B2 (en) 1997-02-06 2014-04-08 At&T Mobility Ii Llc Method for frequency division duplex communications
US8891414B2 (en) 2000-12-15 2014-11-18 Adaptix, Inc. Multi-carrier communications with adaptive cluster configuration and switching
USRE45775E1 (en) 2000-06-13 2015-10-20 Comcast Cable Communications, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks

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US6128276A (en) * 1997-02-24 2000-10-03 Radix Wireless, Inc. Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays
JP3764827B2 (en) * 1999-03-01 2006-04-12 富士通株式会社 Multicarrier spread spectrum receiver in a communication device, and a receiving method
DE19916912A1 (en) * 1999-04-14 2000-11-09 Siemens Ag Beamforming method of downlink for base stations in radio communications systems
US20020146044A1 (en) * 2001-04-09 2002-10-10 Riaz Esmailzadeh Hybrid single/multiuser interference reduction detector
JP5079189B2 (en) * 2001-04-13 2012-11-21 Kddi株式会社 Multi-beam cellular base station, the mobile station and the spread spectrum signal transmitting method
JP4754103B2 (en) * 2001-06-26 2011-08-24 Kddi株式会社 The radio base station apparatus, and a destination mobile station selecting method thereof
JP4454308B2 (en) 2001-08-30 2010-04-21 富士通株式会社 Multicarrier cdma transmission method and a base station transmission apparatus
US7042857B2 (en) 2002-10-29 2006-05-09 Qualcom, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US7512083B2 (en) 2003-04-07 2009-03-31 Shaolin Li Single chip multi-antenna wireless data processor
US7646744B2 (en) 2003-04-07 2010-01-12 Shaolin Li Method of operating multi-antenna wireless data processing system
US8014374B2 (en) 2003-04-07 2011-09-06 Bellow Bellows Llc System and method for achieving timing compatibility with multi-antenna wireless data protocols
US7389096B2 (en) 2003-04-07 2008-06-17 Bellow Bellows Llc Monitoring system using multi-antenna transceivers
US7933255B2 (en) 2003-04-07 2011-04-26 Bellow Bellows Llc Multi-antenna wireless data processing system
EP2082497B1 (en) 2006-11-07 2012-07-18 The DirecTV Group, Inc. Aas direct signaling framing methodologies to support high capacity wireless links

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8693432B2 (en) 1997-02-06 2014-04-08 At&T Mobility Ii Llc Method for frequency division duplex communications
US6785300B2 (en) 1997-02-06 2004-08-31 At&T Wireless Services, Inc. Delay compensation
US6782039B2 (en) 1997-02-24 2004-08-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US8315326B2 (en) 2000-06-13 2012-11-20 Aloft Media, Llc Apparatus for generating at least one signal based on at least one aspect of at least two received signals
US9401783B1 (en) 2000-06-13 2016-07-26 Comcast Cable Communications, Llc Transmission of data to multiple nodes
US8451928B2 (en) 2000-06-13 2013-05-28 Aloft Media, Llc Apparatus for calculating weights associated with a first signal and applying the weights to a second signal
US8451929B2 (en) 2000-06-13 2013-05-28 Aloft Media, Llc Apparatus for calculating weights associated with a received signal and applying the weights to transmit data
US8315327B2 (en) 2000-06-13 2012-11-20 Aloft Media, Llc Apparatus for transmitting a signal including transmit data to a multiple-input capable node
US9391745B2 (en) 2000-06-13 2016-07-12 Comcast Cable Communications, Llc Multi-user transmissions
US9356666B1 (en) 2000-06-13 2016-05-31 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
US9344233B2 (en) 2000-06-13 2016-05-17 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
US9209871B2 (en) 2000-06-13 2015-12-08 Comcast Cable Communications, Llc Network communication using diversity
US9197297B2 (en) 2000-06-13 2015-11-24 Comcast Cable Communications, Llc Network communication using diversity
US9106286B2 (en) 2000-06-13 2015-08-11 Comcast Cable Communications, Llc Network communication using diversity
USRE45807E1 (en) 2000-06-13 2015-11-17 Comcast Cable Communications, Llc Apparatus for transmitting a signal including transmit data to a multiple-input capable node
USRE45775E1 (en) 2000-06-13 2015-10-20 Comcast Cable Communications, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
US9515788B2 (en) 2000-06-13 2016-12-06 Comcast Cable Communications, Llc Originator and recipient based transmissions in wireless communications
US9191138B2 (en) 2000-12-15 2015-11-17 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8964719B2 (en) 2000-12-15 2015-02-24 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US9203553B1 (en) 2000-12-15 2015-12-01 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8958386B2 (en) 2000-12-15 2015-02-17 Adaptix, Inc. Multi-carrier communications with adaptive cluster configuration and switching
US9210708B1 (en) 2000-12-15 2015-12-08 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8934445B2 (en) 2000-12-15 2015-01-13 Adaptix, Inc. Multi-carrier communications with adaptive cluster configuration and switching
US9344211B2 (en) 2000-12-15 2016-05-17 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8934375B2 (en) 2000-12-15 2015-01-13 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8891414B2 (en) 2000-12-15 2014-11-18 Adaptix, Inc. Multi-carrier communications with adaptive cluster configuration and switching
US9219572B2 (en) 2000-12-15 2015-12-22 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US8363744B2 (en) 2001-06-10 2013-01-29 Aloft Media, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks

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Publication number Publication date Type
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