MX2007006990A - Metodo y aparato para realizar ecualizacion al nivel de microplaca utilizando procesamiento conjunto. - Google Patents

Metodo y aparato para realizar ecualizacion al nivel de microplaca utilizando procesamiento conjunto.

Info

Publication number
MX2007006990A
MX2007006990A MX2007006990A MX2007006990A MX2007006990A MX 2007006990 A MX2007006990 A MX 2007006990A MX 2007006990 A MX2007006990 A MX 2007006990A MX 2007006990 A MX2007006990 A MX 2007006990A MX 2007006990 A MX2007006990 A MX 2007006990A
Authority
MX
Mexico
Prior art keywords
transmit antennas
antennas
chip level
joint processing
level equalization
Prior art date
Application number
MX2007006990A
Other languages
English (en)
Inventor
Robert A Difazio
Kyle Jung-Lin Pan
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of MX2007006990A publication Critical patent/MX2007006990A/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
    • 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
    • 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
    • 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector
    • 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
    • H04L1/0618—Space-time coding
    • 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
    • H04L25/0204—Channel estimation of multiple 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03171—Arrangements involving maximum a posteriori probability [MAP] detection
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Probability & Statistics with Applications (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un metodo y aparato para realizar la ecualizacion al nivel de microplaca (CLE) utilizando procesamiento conjunto para mejorar el desempeno y el rendimiento del sistema utilizando un transmisor que tiene una pluralidad de antenas transmisoras y un receptor que tiene una pluralidad de antenas receptoras. Se forma una matriz de respuesta de canal entre las antenas transmisoras y las antenas receptoras, para generar una matriz de correlacion de canal conjunto entre las antenas transmisoras y las antenas receptoras utilizando una descomposicion de FFT por bloque (B-FFT) de la matriz de respuesta de canal. Se generan estimados de las secuencias transmitidas por microplaca provenientes de cada una de las antenas transmisoras, utilizando error cuadratico medio minimo (MMSE) y se combina la matriz de correlacion de canal conjunto. Los estimados combinados de las secuencias transmitidas por microplaca se comprimen para recuperar los datos transmitidos.
MX2007006990A 2004-12-14 2005-11-15 Metodo y aparato para realizar ecualizacion al nivel de microplaca utilizando procesamiento conjunto. MX2007006990A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US63634504P 2004-12-14 2004-12-14
US64238305P 2005-01-07 2005-01-07
US11/259,430 US7539262B2 (en) 2004-12-14 2005-10-26 Method and apparatus for performing chip level equalization using joint processing
PCT/US2005/041471 WO2006065428A2 (en) 2004-12-14 2005-11-15 Method and apparatus for performing chip level equalization using joint processing

Publications (1)

Publication Number Publication Date
MX2007006990A true MX2007006990A (es) 2007-07-04

Family

ID=36583709

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007006990A MX2007006990A (es) 2004-12-14 2005-11-15 Metodo y aparato para realizar ecualizacion al nivel de microplaca utilizando procesamiento conjunto.

Country Status (9)

Country Link
US (1) US7539262B2 (es)
EP (1) EP1825610A4 (es)
JP (1) JP4567749B2 (es)
KR (2) KR20070094033A (es)
CN (1) CN101292445B (es)
CA (1) CA2591676A1 (es)
MX (1) MX2007006990A (es)
NO (1) NO20073570L (es)
WO (1) WO2006065428A2 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7848387B2 (en) * 2007-05-21 2010-12-07 Telefonaktiebolaget Lm Ericsson (Publ) Receiver parametric covariance estimation for transmit diversity
KR100939919B1 (ko) * 2007-09-28 2010-02-03 한국전자통신연구원 무선통신 시스템에서의 순차 간섭 제거 수신 방법 및 장치
US7995641B2 (en) * 2007-11-06 2011-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for code power parameter estimation for received signal processing
US9374175B2 (en) * 2014-06-09 2016-06-21 Qualcomm Incorporated Joint spatial processing for space frequency block coding and/or non space frequency block coding channels
KR102190919B1 (ko) * 2014-09-11 2020-12-14 삼성전자주식회사 시분할 듀플렉싱 코드 분할 다중 접속 방식을 지원하는 통신 시스템에서 신호 검출 장치 및 방법
CN105703815B (zh) * 2014-11-28 2018-09-14 辰芯科技有限公司 基于闭环发送分集模式下的均衡方法、均衡设备及相应系统
CN109560850B (zh) * 2018-11-27 2021-09-10 中国人民解放军国防科技大学 Mrc软检测方法、装置、设备及计算机可读存储介质

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020191568A1 (en) * 2001-03-29 2002-12-19 Koninklijke Philips Electronics N.V. Adaptive chip equalizers for synchronous DS-CDMA systems with pilot sequences
US7158558B2 (en) * 2001-04-26 2007-01-02 Interuniversitair Microelektronica Centrum (Imec) Wideband multiple access telecommunication method and apparatus
US6625203B2 (en) * 2001-04-30 2003-09-23 Interdigital Technology Corporation Fast joint detection
US7103115B2 (en) * 2001-05-21 2006-09-05 At&T Corp. Optimum training sequences for wireless systems
US7359466B2 (en) * 2001-08-24 2008-04-15 Lucent Technologies Inc. Signal detection by a receiver in a multiple antenna time-dispersive system
US7170926B2 (en) * 2001-11-29 2007-01-30 Interdigital Technology Corporation Efficient multiple input multiple output system for multi-path fading channels
EP1357693B1 (en) * 2002-04-25 2010-06-09 Imec CDMA transceiver techniques for multiple input multiple output (mimo) wireless communications
US8135057B2 (en) * 2002-12-20 2012-03-13 Texas Instruments Incorporated Reconfigurable chip level equalizer architecture
US7586982B2 (en) * 2003-05-06 2009-09-08 Nokia Corporation Kalman filter based method and apparatus for linear equalization of CDMA downlink channels
US7420916B2 (en) * 2003-05-13 2008-09-02 Nokia Corporation Fourier-transform based linear equalization for MIMO CDMA downlink
US7302009B2 (en) * 2003-12-17 2007-11-27 Qualcomm Incorporated Broadcast transmission with spatial spreading in a multi-antenna communication system

Also Published As

Publication number Publication date
EP1825610A2 (en) 2007-08-29
JP4567749B2 (ja) 2010-10-20
US20060126568A1 (en) 2006-06-15
CN101292445A (zh) 2008-10-22
US7539262B2 (en) 2009-05-26
CA2591676A1 (en) 2006-06-22
JP2008523767A (ja) 2008-07-03
NO20073570L (no) 2007-09-11
WO2006065428A2 (en) 2006-06-22
CN101292445B (zh) 2011-04-27
EP1825610A4 (en) 2013-01-16
WO2006065428A3 (en) 2007-12-27
KR100905980B1 (ko) 2009-07-06
KR20070094033A (ko) 2007-09-19
KR20070094002A (ko) 2007-09-19

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