ATE505010T1 - Vorrichtung zur schätzung von filterkoeffizienten mit einer der hsdsch-symbolrate entsprechenden aktualisierungsrate für einen auf symbolebene arbeitenden entzerrer. - Google Patents

Vorrichtung zur schätzung von filterkoeffizienten mit einer der hsdsch-symbolrate entsprechenden aktualisierungsrate für einen auf symbolebene arbeitenden entzerrer.

Info

Publication number
ATE505010T1
ATE505010T1 AT07705807T AT07705807T ATE505010T1 AT E505010 T1 ATE505010 T1 AT E505010T1 AT 07705807 T AT07705807 T AT 07705807T AT 07705807 T AT07705807 T AT 07705807T AT E505010 T1 ATE505010 T1 AT E505010T1
Authority
AT
Austria
Prior art keywords
estimate
symbol
reference symbol
sum
filter
Prior art date
Application number
AT07705807T
Other languages
English (en)
Inventor
Andrea Ancora
Ahmet Bastug
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE505010T1 publication Critical patent/ATE505010T1/de

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
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • H04J13/20—Allocation of orthogonal codes having an orthogonal variable spreading factor [OVSF]
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
AT07705807T 2006-02-13 2007-02-06 Vorrichtung zur schätzung von filterkoeffizienten mit einer der hsdsch-symbolrate entsprechenden aktualisierungsrate für einen auf symbolebene arbeitenden entzerrer. ATE505010T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06300128 2006-02-13
PCT/IB2007/050396 WO2007093934A1 (en) 2006-02-13 2007-02-06 Filter weight estimation device with update at hsdsch symbol rate, for a symbol level equaliser

Publications (1)

Publication Number Publication Date
ATE505010T1 true ATE505010T1 (de) 2011-04-15

Family

ID=38222373

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07705807T ATE505010T1 (de) 2006-02-13 2007-02-06 Vorrichtung zur schätzung von filterkoeffizienten mit einer der hsdsch-symbolrate entsprechenden aktualisierungsrate für einen auf symbolebene arbeitenden entzerrer.

Country Status (8)

Country Link
US (1) US8194726B2 (de)
EP (1) EP1987643B1 (de)
JP (1) JP4765031B2 (de)
KR (1) KR101133839B1 (de)
CN (1) CN101385297B (de)
AT (1) ATE505010T1 (de)
DE (1) DE602007013714D1 (de)
WO (1) WO2007093934A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8036225B1 (en) * 2008-05-15 2011-10-11 Clear Wireless Llc Enhanced ranging in WiMAX
CN102006154A (zh) * 2010-11-18 2011-04-06 中国人民解放军理工大学 基于选择重传的多码道混合arq方法
TWI452540B (zh) 2010-12-09 2014-09-11 Ind Tech Res Inst 影像式之交通參數偵測系統與方法及電腦程式產品
CN105519108B (zh) * 2012-01-09 2019-11-29 华为技术有限公司 量化矩阵编码的加权预测方法和装置
CN104679976B (zh) * 2014-10-31 2017-11-28 哈尔滨工业大学深圳研究生院 用于信号处理的收缩线性和收缩广义线性复最小二乘算法
US10135645B1 (en) * 2017-10-18 2018-11-20 Cisco Technology, Inc. Equalizer optimization for FEC-protected communication links

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6175588B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system
JP3560138B2 (ja) * 1999-12-06 2004-09-02 松下電器産業株式会社 波形等化器とこれを用いた移動局無線装置、基地局無線装置及び移動通信システム
EP1158694B1 (de) * 2000-03-27 2009-01-28 NTT DoCoMo, Inc. Räumliche und Zeitliche Entzerrer und Entzerrungsverfahren
EP1305884A2 (de) * 2000-08-04 2003-05-02 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Spreizfaktordetektor
US7020175B2 (en) * 2000-09-21 2006-03-28 Motorola, Inc. MMSE reception of DS-CDMA with transmit diversity
US7158558B2 (en) * 2001-04-26 2007-01-02 Interuniversitair Microelektronica Centrum (Imec) Wideband multiple access telecommunication method and apparatus
CN101053153A (zh) * 2004-11-05 2007-10-10 美商内数位科技公司 具双模主动分接器遮罩产生器及导频参考信号振幅控制单元的适应等化器
US7532667B2 (en) * 2004-11-05 2009-05-12 Interdigital Technology Corporation Pilot-directed and pilot/data-directed equalizers

Also Published As

Publication number Publication date
DE602007013714D1 (de) 2011-05-19
JP2009526462A (ja) 2009-07-16
KR101133839B1 (ko) 2012-04-06
WO2007093934A1 (en) 2007-08-23
US8194726B2 (en) 2012-06-05
KR20080094943A (ko) 2008-10-27
US20090034602A1 (en) 2009-02-05
EP1987643B1 (de) 2011-04-06
EP1987643A1 (de) 2008-11-05
CN101385297A (zh) 2009-03-11
CN101385297B (zh) 2011-08-31
JP4765031B2 (ja) 2011-09-07

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties