AR008590A1 - Metodo y aparato para rechazo de interferencias con diferentes haces, polarizaciones y referencias de fase - Google Patents

Metodo y aparato para rechazo de interferencias con diferentes haces, polarizaciones y referencias de fase

Info

Publication number
AR008590A1
AR008590A1 ARP970101532A ARP970101532A AR008590A1 AR 008590 A1 AR008590 A1 AR 008590A1 AR P970101532 A ARP970101532 A AR P970101532A AR P970101532 A ARP970101532 A AR P970101532A AR 008590 A1 AR008590 A1 AR 008590A1
Authority
AR
Argentina
Prior art keywords
scalar
derivation
samples
correlation
received signals
Prior art date
Application number
ARP970101532A
Other languages
English (en)
Original Assignee
Ericcson 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 Ericcson Inc filed Critical Ericcson Inc
Publication of AR008590A1 publication Critical patent/AR008590A1/es

Links

Classifications

    • 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
    • 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
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • 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
    • 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
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • 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
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Un método para reducir el desvanecimiento de las senales, la dispersion de tiempo y la interferencia, en un sistema de radiocomunicaciones que comprendelos pasos de: a) recibir una senal de radio en por lo menos un elemento de antena querepres enta una secuencia transmitida de símbolos; b) procesar dichasenal de radio para producir muestras de las senales recibidas, correspondiente a por lo menos una antena; c) estimar una derivacion de canal correspondientea por lo menos unaantena, para producir una estimacion de derivacion de canal; d) estimar las propiedades de la correlacion en cuanto a la reduccion de lacalidad de transmision escalares entre las muestras de las senales recibidas, para producir una estimacion delas propiedade s de la correlacion en cuantoreducccion de la calidad de transmision escalares; e) formar la métrica de derivacion escalar de un procesador de métricas de derivaciones escalares,utilizando dichas muestras de las senalesrecibidas. Dicha estimaci on de derivacion de canal y dicha estimacion de las propiedades de la correlacion encuanto a la reduccion de la calidad de transmision escalares y f) emplear dicha métrica de derivacon escalar en un algoritmo deestimacion de secuencias, parae stimar dicha secuencia transmitida de símbolos.
ARP970101532A 1996-04-19 1997-04-16 Metodo y aparato para rechazo de interferencias con diferentes haces, polarizaciones y referencias de fase AR008590A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/634,719 US6081566A (en) 1994-08-02 1996-04-19 Method and apparatus for interference rejection with different beams, polarizations, and phase references

Publications (1)

Publication Number Publication Date
AR008590A1 true AR008590A1 (es) 2000-02-09

Family

ID=24544947

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970101532A AR008590A1 (es) 1996-04-19 1997-04-16 Metodo y aparato para rechazo de interferencias con diferentes haces, polarizaciones y referencias de fase

Country Status (11)

Country Link
US (1) US6081566A (es)
EP (1) EP0894367B1 (es)
JP (1) JP2000509575A (es)
KR (1) KR20000005543A (es)
AR (1) AR008590A1 (es)
AU (1) AU725189B2 (es)
CA (1) CA2251843A1 (es)
DE (1) DE69727476T2 (es)
ID (1) ID19673A (es)
TW (1) TW326114B (es)
WO (1) WO1997040588A1 (es)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6173014B1 (en) * 1994-08-02 2001-01-09 Telefonaktiebolaget Lm Ericsson Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system
US6501771B2 (en) * 1997-02-11 2002-12-31 At&T Wireless Services, Inc. Delay compensation
US5933421A (en) 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US6408016B1 (en) * 1997-02-24 2002-06-18 At&T Wireless Services, Inc. Adaptive weight update method and system for a discrete multitone spread spectrum communications system
US6359923B1 (en) * 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US6584144B2 (en) 1997-02-24 2003-06-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
WO1998037654A2 (en) * 1997-02-24 1998-08-27 At & T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
FI103618B (fi) * 1997-07-04 1999-07-30 Nokia Telecommunications Oy Vastaanotetun signaalin tulkitseminen
US6185258B1 (en) 1997-09-16 2001-02-06 At&T Wireless Services Inc. Transmitter diversity technique for wireless communications
WO1999023766A2 (en) 1997-10-31 1999-05-14 At & T Wireless Services, Inc. Maximum likelihood detection of concatenated space-time codes for wireless applications with transmitter diversity
US6694154B1 (en) 1997-11-17 2004-02-17 Ericsson Inc. Method and apparatus for performing beam searching in a radio communication system
JPH11266180A (ja) * 1998-03-18 1999-09-28 Fujitsu Ltd 無線基地局のアレーアンテナシステム
FR2780844B1 (fr) * 1998-07-06 2000-09-29 Sfr Sa Terminal mobile de radiocommunication comprenant au moins deux antennes presentant une diversite de polarisations pour la reception de signaux
US7076227B1 (en) * 1998-12-03 2006-07-11 Apex/Eclipse Systems, Inc. Receiving system with improved directivity and signal to noise ratio
US6690754B1 (en) * 1999-06-04 2004-02-10 Agere Systems Inc. Method and apparatus for reducing the computational complexity and relaxing the critical path of reduced state sequence estimation (RSSE) techniques
US6470192B1 (en) 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
US6115406A (en) * 1999-09-10 2000-09-05 Interdigital Technology Corporation Transmission using an antenna array in a CDMA communication system
US6278726B1 (en) * 1999-09-10 2001-08-21 Interdigital Technology Corporation Interference cancellation in a spread spectrum communication system
US7106853B1 (en) 1999-09-20 2006-09-12 Apex/Eclipse Systems, Inc. Method and means for increasing inherent channel capacity for wired network
US6754511B1 (en) 2000-02-04 2004-06-22 Harris Corporation Linear signal separation using polarization diversity
SE516846C2 (sv) * 2000-07-07 2002-03-12 Ericsson Telefon Ab L M Förfarande och anordning i ett radiokommunikationssystem
US6907092B1 (en) * 2000-07-14 2005-06-14 Comsys Communication & Signal Processing Ltd. Method of channel order selection and channel estimation in a wireless communication system
US6963619B1 (en) * 2000-07-21 2005-11-08 Intel Corporation Spatial separation and multi-polarization of antennae in a wireless network
US6937592B1 (en) 2000-09-01 2005-08-30 Intel Corporation Wireless communications system that supports multiple modes of operation
US6775340B1 (en) * 2000-10-13 2004-08-10 Ericsson Inc. Synchronization and channel estimation with extended pilot symbols
US6567387B1 (en) * 2000-11-07 2003-05-20 Intel Corporation System and method for data transmission from multiple wireless base transceiver stations to a subscriber unit
JPWO2002051034A1 (ja) * 2000-12-21 2004-04-22 松下電器産業株式会社 基地局装置
US20020136287A1 (en) * 2001-03-20 2002-09-26 Heath Robert W. Method, system and apparatus for displaying the quality of data transmissions in a wireless communication system
US7209511B2 (en) * 2001-08-31 2007-04-24 Ericsson Inc. Interference cancellation in a CDMA receiving system
US7224942B2 (en) 2001-07-26 2007-05-29 Telefonaktiebolaget Lm Ericsson (Publ) Communications system employing non-polluting pilot codes
US6996380B2 (en) * 2001-07-26 2006-02-07 Ericsson Inc. Communication system employing transmit macro-diversity
US7197282B2 (en) * 2001-07-26 2007-03-27 Ericsson Inc. Mobile station loop-back signal processing
US20030045297A1 (en) * 2001-08-24 2003-03-06 Dent Paul W. Communication system employing channel estimation loop-back signals
US7149254B2 (en) * 2001-09-06 2006-12-12 Intel Corporation Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems
US20030067890A1 (en) * 2001-10-10 2003-04-10 Sandesh Goel System and method for providing automatic re-transmission of wirelessly transmitted information
US7336719B2 (en) * 2001-11-28 2008-02-26 Intel Corporation System and method for transmit diversity base upon transmission channel delay spread
US7236548B2 (en) * 2001-12-13 2007-06-26 Koninklijke Philips Electronics N.V. Bit level diversity combining for COFDM system
FR2833784B1 (fr) * 2001-12-18 2004-02-13 Thales Sa Procede d'antibrouillage pour recepteur de signaux radioelectriques a spectre etale
US8095857B2 (en) * 2001-12-18 2012-01-10 Agere Systems Inc. Method and apparatus for joint equalization and decoding of multidimensional codes transmitted over multiple symbol durations
US7012978B2 (en) * 2002-03-26 2006-03-14 Intel Corporation Robust multiple chain receiver
KR100535638B1 (ko) * 2002-06-19 2005-12-08 주식회사 케이티 무선 랜 시스템을 위한 직교주파수분할다중화 동기복조방법 및 그 장치
US20030235252A1 (en) * 2002-06-19 2003-12-25 Jose Tellado Method and system of biasing a timing phase estimate of data segments of a received signal
US6907272B2 (en) * 2002-07-30 2005-06-14 UNIVERSITé LAVAL Array receiver with subarray selection
CN100486126C (zh) * 2002-12-30 2009-05-06 Nxp股份有限公司 基于cdma系统的多用户检测的简化去相关的方法及其装置
WO2004071001A1 (en) * 2003-02-03 2004-08-19 Mcgill University System and method for data communication over multi-input, multi-output channels
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
EP1709745A4 (en) * 2004-01-30 2012-03-14 Univ Laval MULTI-USER ADAPTIVE NETWORK RECEIVER AND CORRESPONDING METHOD
AU2005203278A1 (en) * 2004-08-12 2006-03-02 Nec Australia Pty Ltd Method for calculating filter coefficients for an equaliser in a communication receiver
EP1717594A1 (en) * 2005-04-21 2006-11-02 Infineon Technologies AG A receiver with increased sensitivity
CA2504989C (en) * 2005-04-22 2013-03-12 Gotohti.Com Inc. Stepped pump foam dispenser
US7796956B2 (en) * 2005-05-03 2010-09-14 Telefonaktiebolaget L M Ericsson (Publ) Receiver for a multi-antenna, multi-band radio
CA2516000A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Joint space-time optimum filters (jstof) with at least one virtual antenna, at least one channel, and joint filter weight and cir estimation
US7697638B2 (en) * 2005-08-16 2010-04-13 Freescale Semiconductor, Inc. Modulation detection in a SAIC operational environment
US7724816B2 (en) * 2005-09-13 2010-05-25 Freescale Semiconductor, Inc. Dynamic switching between maximum likelihood sequence estimation (MLSE) and linear equalizer for single antenna interference cancellation (SAIC) in a global system for mobile communications (GSM) system
US7634246B2 (en) * 2006-09-29 2009-12-15 Broadcom Corporation Method and system for blocker attenuation using multiple receive antennas
US8406721B2 (en) * 2006-09-29 2013-03-26 Broadcom Corporation Method and system for reusing antennas in a multi-antenna system while operating in a narrowband receiving mode
US8279796B1 (en) * 2007-11-16 2012-10-02 Bnsf Railway Company Multiple-channel software defined radios and systems using the same
US8666004B2 (en) * 2008-05-21 2014-03-04 Qualcomm Incorporated Methods and systems for hybrid MIMO schemes in OFDM/A systems
CN101908935B (zh) * 2009-06-08 2013-01-16 凌阳科技股份有限公司 用于多载波系统的信号信噪比的估算系统
US8369793B2 (en) * 2009-10-02 2013-02-05 Telefonaktiebolaget L M Ericsson (Publ) Channel-dependent scheduling and link adaptation
US8218692B2 (en) * 2009-12-10 2012-07-10 The Aerospace Corporation Signal separator
GB2479549B (en) * 2010-04-13 2012-10-03 Toshiba Res Europ Ltd Low complexity antenna selection methods for interference rejection receivers
US8503587B2 (en) * 2011-05-23 2013-08-06 Harris Corporation Adaptive channel tracking using peak fade depth estimation over a slot
CN104025472B (zh) 2011-10-19 2017-09-26 爱立信(中国)通信有限公司 用于极化天线系统的无线电接收器
US9401756B2 (en) * 2012-05-03 2016-07-26 Wistron Neweb Corporation Method for configuring multiple antennas and related wireless communication device
EP2720424B1 (en) 2012-10-09 2016-11-30 Alcatel Lucent Apparatus, method and computer program operable to determine estimates
EP3646462A1 (en) * 2017-06-30 2020-05-06 INTEL Corporation Wireless architectures and digital pre-distortion (dpd) techniques using closed loop feedback for phased array transmitters

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713817A (en) * 1985-04-25 1987-12-15 Codex Corporation Multidimensional, convolutionally coded communication systems
US4644562A (en) * 1985-08-28 1987-02-17 At&T Company Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems
CA1338153C (en) * 1987-11-10 1996-03-12 Yoshihiro Nozue Interference canceller
SE463540B (sv) * 1988-09-19 1990-12-03 Ericsson Telefon Ab L M Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
EP0381949A1 (de) * 1989-02-01 1990-08-16 Siemens Aktiengesellschaft Diversity-Kombinator
SE464902B (sv) * 1989-10-24 1991-06-24 Ericsson Telefon Ab L M Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet
US5031193A (en) * 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals
SE465597B (sv) * 1990-02-16 1991-09-30 Ericsson Telefon Ab L M Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner
DE69228649T2 (de) * 1991-11-18 1999-08-12 Nec Corp., Tokio/Tokyo Automatischer Entzerrer zur wirkungsvollen Kompensation der Nachbarsymbolinterferenz und der Kreuzpolarisationsinterferenz bei einer doppelten Gleichkanalpolarisation
GB9126944D0 (en) * 1991-12-19 1992-02-19 Secr Defence A digital beamforming array
US5319677A (en) * 1992-05-12 1994-06-07 Hughes Aircraft Company Diversity combiner with MLSE for digital cellular radio
JP2858508B2 (ja) * 1992-08-13 1999-02-17 日本電気株式会社 干渉波除去装置
GB2281007B (en) * 1993-08-12 1998-04-15 Northern Telecom Ltd Base station antenna arrangement
US5351274A (en) * 1993-08-20 1994-09-27 General Electric Company Post detection selection combining diversity receivers for mobile and indoor radio channels
US5499272A (en) * 1994-05-31 1996-03-12 Ericsson Ge Mobile Communications Inc. Diversity receiver for signals with multipath time dispersion
US5481572A (en) * 1994-08-02 1996-01-02 Ericsson Inc. Method of and apparatus for reducing the complexitiy of a diversity combining and sequence estimation receiver
US5680419A (en) * 1994-08-02 1997-10-21 Ericsson Inc. Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems

Also Published As

Publication number Publication date
US6081566A (en) 2000-06-27
ID19673A (id) 1998-07-30
WO1997040588A1 (en) 1997-10-30
EP0894367B1 (en) 2004-02-04
CA2251843A1 (en) 1997-10-30
KR20000005543A (ko) 2000-01-25
AU725189B2 (en) 2000-10-05
DE69727476T2 (de) 2004-12-23
EP0894367A1 (en) 1999-02-03
TW326114B (en) 1998-02-01
AU2672197A (en) 1997-11-12
JP2000509575A (ja) 2000-07-25
DE69727476D1 (de) 2004-03-11

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