CA2283859A1 - Highly bandwidth-efficient communications - Google Patents

Highly bandwidth-efficient communications Download PDF

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Publication number
CA2283859A1
CA2283859A1 CA002283859A CA2283859A CA2283859A1 CA 2283859 A1 CA2283859 A1 CA 2283859A1 CA 002283859 A CA002283859 A CA 002283859A CA 2283859 A CA2283859 A CA 2283859A CA 2283859 A1 CA2283859 A1 CA 2283859A1
Authority
CA
Canada
Prior art keywords
multipoint
spectral
spatial
interference cancellation
nulling
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002283859A
Other languages
French (fr)
Other versions
CA2283859C (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
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Wireless Services Inc
Original Assignee
Individual
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
Priority claimed from US08/993,721 external-priority patent/US6359923B1/en
Application filed by Individual filed Critical Individual
Priority to CA2503248A priority Critical patent/CA2503248C/en
Priority claimed from PCT/US1998/003591 external-priority patent/WO1998037638A2/en
Publication of CA2283859A1 publication Critical patent/CA2283859A1/en
Application granted granted Critical
Publication of CA2283859C publication Critical patent/CA2283859C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/186—Phase-modulated carrier systems, i.e. using phase-shift keying in which the information is carried by both the individual signal points and the subset to which the individual signal points belong, e.g. coset coding or related schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • H04L5/026—Multiplexing of multicarrier modulation signals using code division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/692—Hybrid techniques using combinations of two or more spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0026—Division using four or more dimensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

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.
CA002283859A 1997-02-24 1998-02-24 Highly bandwidth-efficient communications Expired - Fee Related CA2283859C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2503248A CA2503248C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US80461997A 1997-02-24 1997-02-24
US08/804,619 1997-02-24
US08/993,721 1997-12-18
US08/993,721 US6359923B1 (en) 1997-12-18 1997-12-18 Highly bandwidth efficient communications
PCT/US1998/003591 WO1998037638A2 (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2503248A Division CA2503248C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Publications (2)

Publication Number Publication Date
CA2283859A1 true CA2283859A1 (en) 1998-08-27
CA2283859C CA2283859C (en) 2005-08-02

Family

ID=27122710

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2503248A Expired - Fee Related CA2503248C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications
CA002283859A Expired - Fee Related CA2283859C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2503248A Expired - Fee Related CA2503248C (en) 1997-02-24 1998-02-24 Highly bandwidth-efficient communications

Country Status (4)

Country Link
EP (1) EP0966797B8 (en)
JP (3) JP4175521B2 (en)
CA (2) CA2503248C (en)
DE (1) DE69833187T2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6928062B2 (en) * 2002-10-29 2005-08-09 Qualcomm, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US7042857B2 (en) 2002-10-29 2006-05-09 Qualcom, Incorporated Uplink pilot and signaling transmission in wireless communication systems
US20050135457A1 (en) * 2003-12-19 2005-06-23 Molisch Andreas F. Ultra wide bandwidth transmitter with tone grouping and spreading
US8611283B2 (en) 2004-01-28 2013-12-17 Qualcomm Incorporated Method and apparatus of using a single channel to provide acknowledgement and assignment messages
US8891349B2 (en) 2004-07-23 2014-11-18 Qualcomm Incorporated Method of optimizing portions of a frame
US8831115B2 (en) 2004-12-22 2014-09-09 Qualcomm Incorporated MC-CDMA multiplexing in an orthogonal uplink
US8238923B2 (en) 2004-12-22 2012-08-07 Qualcomm Incorporated Method of using shared resources in a communication system
JP4744577B2 (en) * 2008-09-12 2011-08-10 パナソニック株式会社 Transmitting apparatus and transmitting method
WO2012108411A1 (en) 2011-02-10 2012-08-16 日本電気株式会社 Encoding/decoding processor and wireless communication apparatus
US10484063B1 (en) 2018-05-04 2019-11-19 At&T Intellectual Property I, L.P. Transmission of beamforming weight coefficients from digital baseband unit to remote radio unit
US10367568B1 (en) 2018-08-08 2019-07-30 At&T Intellectual Property I, L.P. Determining precoding coefficients for fronthaul links in a cloud radio access network
CN109368272A (en) * 2018-10-29 2019-02-22 彩虹显示器件股份有限公司 A kind of High Accuracy Flat apparatus for conveying glass
CN109412576B (en) * 2018-12-13 2024-04-12 江苏航天大为科技股份有限公司 Multi-channel alternating-current high-voltage signal matrix conflict detection controller
EP3900284B1 (en) * 2018-12-17 2023-11-08 U-blox AG Estimating one or more characteristics of a communications channel
CN111415498A (en) * 2020-05-06 2020-07-14 天津七一二通信广播股份有限公司 Railway construction protective equipment based on L TE-R network

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI111580B (en) * 1994-06-13 2003-08-15 Nokia Corp A power control method and arrangement for a handover in a mobile communication system
JP2944459B2 (en) * 1995-04-07 1999-09-06 日本電気株式会社 Transmission power control method in mobile communication system

Also Published As

Publication number Publication date
EP0966797A2 (en) 1999-12-29
JP4175521B2 (en) 2008-11-05
JP4602426B2 (en) 2010-12-22
EP0966797B8 (en) 2006-04-26
DE69833187T2 (en) 2006-09-21
JP2002514368A (en) 2002-05-14
CA2283859C (en) 2005-08-02
CA2503248A1 (en) 1998-08-27
JP2008187722A (en) 2008-08-14
JP4602427B2 (en) 2010-12-22
EP0966797B1 (en) 2006-01-11
DE69833187D1 (en) 2006-04-06
JP2008187721A (en) 2008-08-14
CA2503248C (en) 2012-02-07

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