DE602005005245D1 - Adaptive Entzerrung eines CDMA Signals im Frequenzbereich - Google Patents

Adaptive Entzerrung eines CDMA Signals im Frequenzbereich

Info

Publication number
DE602005005245D1
DE602005005245D1 DE602005005245T DE602005005245T DE602005005245D1 DE 602005005245 D1 DE602005005245 D1 DE 602005005245D1 DE 602005005245 T DE602005005245 T DE 602005005245T DE 602005005245 T DE602005005245 T DE 602005005245T DE 602005005245 D1 DE602005005245 D1 DE 602005005245D1
Authority
DE
Germany
Prior art keywords
frequency domain
cdma signal
adaptive equalization
equalization
adaptive
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.)
Active
Application number
DE602005005245T
Other languages
English (en)
Other versions
DE602005005245T2 (de
Inventor
Mailaender Laurence
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of DE602005005245D1 publication Critical patent/DE602005005245D1/de
Application granted granted Critical
Publication of DE602005005245T2 publication Critical patent/DE602005005245T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
DE602005005245T 2004-06-22 2005-06-15 Adaptive Entzerrung eines CDMA Signals im Frequenzbereich Active DE602005005245T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/872,359 US7660340B2 (en) 2004-06-22 2004-06-22 Method of receiver processing of CDMA signals in a CDMA system
US872359 2004-06-22

Publications (2)

Publication Number Publication Date
DE602005005245D1 true DE602005005245D1 (de) 2008-04-24
DE602005005245T2 DE602005005245T2 (de) 2009-03-12

Family

ID=34941689

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005005245T Active DE602005005245T2 (de) 2004-06-22 2005-06-15 Adaptive Entzerrung eines CDMA Signals im Frequenzbereich

Country Status (6)

Country Link
US (1) US7660340B2 (de)
EP (1) EP1610513B1 (de)
JP (1) JP4990510B2 (de)
KR (1) KR101073821B1 (de)
CN (1) CN1713553B (de)
DE (1) DE602005005245T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7483480B2 (en) * 2004-11-24 2009-01-27 Nokia Corporation FFT accelerated iterative MIMO equalizer receiver architecture
US7492815B2 (en) * 2004-11-24 2009-02-17 Nokia Corporation Reduced parallel and pipelined high-order MIMO LMMSE receiver architecture
US8548008B2 (en) 2006-02-08 2013-10-01 Nec Corporation Single carrier transmission system, communication device, and single carrier transmission method using for them
JP4616196B2 (ja) * 2006-03-07 2011-01-19 ティーオーエー株式会社 未知系同定システムおよび方法
US7920661B2 (en) * 2006-03-21 2011-04-05 Qualcomm Incorporated Decision feedback equalizer for code division multiplexed signals
CN102006144B (zh) * 2009-09-01 2014-01-08 华为技术有限公司 预编码方法、装置及频域均衡方法、装置
CN110048750B (zh) * 2018-09-29 2021-07-20 中国传媒大学 一种基于优化lm算法的半盲接收机

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658426A (en) * 1985-10-10 1987-04-14 Harold Antin Adaptive noise suppressor
US4939685A (en) * 1986-06-05 1990-07-03 Hughes Aircraft Company Normalized frequency domain LMS adaptive filter
US5481570A (en) * 1993-10-20 1996-01-02 At&T Corp. Block radio and adaptive arrays for wireless systems
US6535552B1 (en) * 1999-05-19 2003-03-18 Motorola, Inc. Fast training of equalizers in discrete multi-tone (DMT) systems
US7254171B2 (en) * 2000-01-20 2007-08-07 Nortel Networks Limited Equaliser for digital communications systems and method of equalisation
JP2001313594A (ja) * 2000-04-28 2001-11-09 Fujitsu Ltd Ｄｍｔシステムのタイムドメインイコライザーの係数更新方法、レシーブ方法、ｄｍｔシステム及びｄｍｔモデム
US6912258B2 (en) * 2000-07-07 2005-06-28 Koninklijke Philips Electtronics N.V. Frequency-domain equalizer for terrestrial digital TV reception
KR20020067918A (ko) * 2000-10-17 2002-08-24 코닌클리케 필립스 일렉트로닉스 엔.브이. 멀티 표준 채널 디코더
US7075967B2 (en) * 2001-01-19 2006-07-11 Raze Technologies, Inc. Wireless communication system using block filtering and fast equalization-demodulation and method of operation
JP2004519900A (ja) * 2001-02-22 2004-07-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 軽減された計算量リーク行列乗算部を備えるマルチキャリア伝送システム
US7042937B2 (en) * 2001-04-23 2006-05-09 Koninklijke Philips Electronics N.V. Hybrid frequency-time domain equalizer
CN1134923C (zh) * 2001-07-18 2004-01-14 华为技术有限公司 一种码分多址通信系统中的时空联合多径搜索方法
US7359466B2 (en) 2001-08-24 2008-04-15 Lucent Technologies Inc. Signal detection by a receiver in a multiple antenna time-dispersive system
US7212569B1 (en) * 2002-06-28 2007-05-01 At&T Corp. Frequency domain decision feedback equalizer
KR100448633B1 (ko) * 2002-10-22 2004-09-13 한국전자통신연구원 단일 반송파 주파수 영역 등화기 시스템의 잔여 주파수오차 추적 장치 및 방법
US20040142665A1 (en) * 2003-01-21 2004-07-22 Apostolos Papathanasion Method and apparatus for diversity combining using a least squares approach
US7586982B2 (en) * 2003-05-06 2009-09-08 Nokia Corporation Kalman filter based method and apparatus for linear equalization of CDMA downlink channels
US6873596B2 (en) * 2003-05-13 2005-03-29 Nokia Corporation Fourier-transform based linear equalization for CDMA downlink
US7110352B2 (en) * 2003-12-09 2006-09-19 Nokia Corporation Direct-sequence CDMA method and device

Also Published As

Publication number Publication date
EP1610513B1 (de) 2008-03-12
DE602005005245T2 (de) 2009-03-12
CN1713553B (zh) 2012-12-26
KR20060046474A (ko) 2006-05-17
US7660340B2 (en) 2010-02-09
JP2006014324A (ja) 2006-01-12
KR101073821B1 (ko) 2011-10-17
JP4990510B2 (ja) 2012-08-01
US20050281323A1 (en) 2005-12-22
CN1713553A (zh) 2005-12-28
EP1610513A1 (de) 2005-12-28

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