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DE69729641D1 - Interferenzverringerung durch gleichzeitige erfassung von kokanalsignalen - Google Patents

Interferenzverringerung durch gleichzeitige erfassung von kokanalsignalen

Info

Publication number
DE69729641D1
DE69729641D1 DE69729641T DE69729641T DE69729641D1 DE 69729641 D1 DE69729641 D1 DE 69729641D1 DE 69729641 T DE69729641 T DE 69729641T DE 69729641 T DE69729641 T DE 69729641T DE 69729641 D1 DE69729641 D1 DE 69729641D1
Authority
DE
Germany
Prior art keywords
cocoal
signals
simultaneous detection
interference reduction
interference
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.)
Expired - Lifetime
Application number
DE69729641T
Other languages
English (en)
Inventor
W Dent
E Bottomley
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.)
Ericsson Inc
Original Assignee
Ericsson 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
Application filed by Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69729641D1 publication Critical patent/DE69729641D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H04L1/0069—Puncturing patterns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0851—Joint weighting using training sequences or error signal
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18567—Arrangements for providing additional services to the basic mobile satellite telephony service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/0048—Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/007—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03203—Trellis search techniques
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03331—Arrangements for the joint estimation of multiple sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • H04W84/025—One-way selective calling networks, e.g. wide area paging with acknowledge back capability
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Dc Digital Transmission (AREA)
DE69729641T 1996-09-19 1997-09-12 Interferenzverringerung durch gleichzeitige erfassung von kokanalsignalen Expired - Lifetime DE69729641D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/710,537 US5937015A (en) 1994-01-11 1996-09-19 Interference mitigation by joint decoding of overlapped signals
PCT/US1997/015910 WO1998012848A1 (en) 1996-09-19 1997-09-12 Interference mitigation by joint detection of cochannel signals

Publications (1)

Publication Number Publication Date
DE69729641D1 true DE69729641D1 (de) 2004-07-29

Family

ID=24854437

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69729641T Expired - Lifetime DE69729641D1 (de) 1996-09-19 1997-09-12 Interferenzverringerung durch gleichzeitige erfassung von kokanalsignalen

Country Status (9)

Country Link
US (1) US5937015A (de)
EP (1) EP0927480B1 (de)
JP (1) JP2001501055A (de)
KR (1) KR20010029538A (de)
CN (1) CN1104795C (de)
AU (1) AU4260597A (de)
DE (1) DE69729641D1 (de)
TW (1) TW448671B (de)
WO (1) WO1998012848A1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137843A (en) * 1995-02-24 2000-10-24 Ericsson Inc. Methods and apparatus for canceling adjacent channel signals in digital communications systems
US6233290B1 (en) * 1995-04-13 2001-05-15 California Institute Of Technology Method for noncoherent coded modulation
US6333953B1 (en) * 1997-07-21 2001-12-25 Ericsson Inc. System and methods for selecting an appropriate detection technique in a radiocommunication system
US6925127B1 (en) 1997-07-22 2005-08-02 Ericsson Inc. Method and apparatus for subtracting multiple rays of multiple interfering received signals
US6108517A (en) * 1997-07-28 2000-08-22 Ericsson Inc. Methods and apparatus for joint demodulation of adjacent channel signals in digital communications systems
EP1242966B1 (de) 1999-12-29 2012-11-07 Geospan Corporation Sphärische Rektifikation von Bildpaaren
US6542559B1 (en) * 2000-05-15 2003-04-01 Qualcomm, Incorporated Decoding method and apparatus
US6591395B1 (en) * 2000-06-18 2003-07-08 Silicon Integrated Systems Corporation Memory reduction techniques in a viterbi decoder
US7251285B2 (en) * 2000-07-11 2007-07-31 Lg Electronics Inc. Method and apparatus for transmitting and receiving using turbo code
US7058422B2 (en) * 2000-09-20 2006-06-06 Bae Systems Information And Electronic Systems Integration Inc. Method for overusing frequencies to permit simultaneous transmission of signals from two or more users on the same frequency and time slot
JP2004511948A (ja) * 2000-10-06 2004-04-15 エリクソン　インコーポレイテッド 多重干渉受信信号の多元電波減算方法並びに装置
US6842476B2 (en) * 2001-02-09 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Co-channel interference canceller
CA2354285A1 (en) * 2001-07-27 2003-01-27 Ramesh Mantha Method, system and apparatus for transmitting interleaved data between stations
US7266168B2 (en) * 2002-07-19 2007-09-04 Interdigital Technology Corporation Groupwise successive interference cancellation for block transmission with reception diversity
US7496164B1 (en) * 2003-05-02 2009-02-24 At&T Mobility Ii Llc Systems and methods for interference cancellation in a radio receiver system
US7450924B1 (en) 2004-03-25 2008-11-11 At&T Mobility Ii Llc Interference cancellation and receive diversity for single-valued modulation receivers
US7643548B2 (en) * 2004-09-27 2010-01-05 Telefonaktiebolaget Lm Ericsson (Publ) Iterative forward-backward parameter estimation
US7961795B2 (en) * 2004-10-29 2011-06-14 Telefonaktiebolaget Lm Ericsson (Publ) Channel estimation
CN100464603C (zh) * 2005-06-16 2009-02-25 上海原动力通信科技有限公司 一种采用同频组网的数字蜂窝通信系统中越区切换的方法
US7623599B2 (en) * 2005-11-21 2009-11-24 Freescale Semiconductor, Inc. Blind bandwidth detection for a sample stream
US8031794B2 (en) * 2006-05-09 2011-10-04 At&T Mobility Ii Llc Systems and methods for interference cancellation in a multiple antenna radio receiver system
EP1895728A1 (de) * 2006-08-28 2008-03-05 Sony Deutschland Gmbh Entzerrervorrichtung und Verfahren zur Entzerrung
EP1895729B1 (de) * 2006-08-28 2012-04-18 Sony Deutschland Gmbh Entzerrervorrichtung und Verfahren zur Entzerrung
CN101179544B (zh) * 2006-11-07 2011-02-09 凌阳科技股份有限公司 序列式解码方法与解码装置
JP5305363B2 (ja) * 2009-02-24 2013-10-02 国立大学法人大阪大学 送信方法、受信方法及び通信方法
US9813145B2 (en) 2015-03-09 2017-11-07 Orbital Atk, Inc. Communications bandwidth enhancement using orthogonal spatial division multiplexing
US10615825B2 (en) * 2017-05-05 2020-04-07 Qualcomm Incorporated Early-termination techniques for polar list decoders

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833693A (en) * 1985-11-21 1989-05-23 Codex Corporation Coded modulation system using interleaving for decision-feedback equalization
GB2215567B (en) * 1988-03-05 1992-11-18 Plessey Co Plc Improvements in or relating to equalisers
US5230003A (en) * 1991-02-08 1993-07-20 Ericsson-Ge Mobile Communications Holding, Inc. Decoding system for distinguishing different types of convolutionally-encoded signals
TW214620B (en) * 1992-04-13 1993-10-11 Ericsson Ge Mobile Communicat Calling channel in CDMA communications system
US5335250A (en) * 1992-10-22 1994-08-02 Ericsson Ge Mobile Communications Inc. Method and apparatus for bidirectional demodulation of digitally modulated signals
US5406585A (en) * 1992-11-30 1995-04-11 Motorola, Inc. Method and apparatus for trellis decoding in a multiple-access system
US5583886A (en) * 1992-12-03 1996-12-10 Motorola, Inc. Method for determining a plurality of channel responses and modifying a received signal therewith
DE69432447T2 (de) * 1993-01-19 2003-12-24 Ntt Mobile Communications Network Inc., Tokio/Tokyo Verfahren und vorrichtung zur reduktion von störwellen eines kommunikationssystems
US5673291A (en) * 1994-09-14 1997-09-30 Ericsson Inc. Simultaneous demodulation and decoding of a digitally modulated radio signal using known symbols
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5790606A (en) * 1994-01-11 1998-08-04 Ericsson Inc. Joint demodulation using spatial maximum likelihood
GB2286506B (en) * 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
US5559561A (en) * 1994-07-15 1996-09-24 Lucent Technologies Inc. Coded modulation with shaping gain and tomlinson precoding

Also Published As

Publication number Publication date
EP0927480A1 (de) 1999-07-07
WO1998012848A1 (en) 1998-03-26
CN1237300A (zh) 1999-12-01
AU4260597A (en) 1998-04-14
KR20010029538A (ko) 2001-04-06
EP0927480B1 (de) 2004-06-23
JP2001501055A (ja) 2001-01-23
US5937015A (en) 1999-08-10
TW448671B (en) 2001-08-01
CN1104795C (zh) 2003-04-02

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