WO2008126284A1 - イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末 - Google Patents

イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末 Download PDF

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Publication number
WO2008126284A1
WO2008126284A1 PCT/JP2007/057195 JP2007057195W WO2008126284A1 WO 2008126284 A1 WO2008126284 A1 WO 2008126284A1 JP 2007057195 W JP2007057195 W JP 2007057195W WO 2008126284 A1 WO2008126284 A1 WO 2008126284A1
Authority
WO
WIPO (PCT)
Prior art keywords
equalizer
control apparatus
correlation
calculating
result
Prior art date
Application number
PCT/JP2007/057195
Other languages
English (en)
French (fr)
Inventor
Akira Ito
Original Assignee
Fujitsu Limited
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 Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/057195 priority Critical patent/WO2008126284A1/ja
Priority to EP07740631.2A priority patent/EP2141828A4/en
Priority to JP2009508831A priority patent/JP4769893B2/ja
Publication of WO2008126284A1 publication Critical patent/WO2008126284A1/ja
Priority to US12/564,398 priority patent/US8335273B2/en

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
    • 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
    • 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
    • H04L25/03012—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
    • 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)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

　本発明は、イコライザのタップ係数を求める過程で相関行列（相関値）の演算量を抑制できるようにすることを目的とする。そのため、本発明では、第１無線基地局については、同一信号タイミングのチャネル推定値同士の演算結果及び異なる信号タイミング同士のチャネル推定値の演算結果に基づいて第１相関値（Ｒ）を求めるとともに、第２無線基地局については、同一信号タイミングのチャネル推定値同士の演算結果に基づいて第２相関値（Ｑ）を求め、これらの相関値（Ｒ，Ｑ）に基づいてイコライザ（２０）での重み付け加算を制御する。
PCT/JP2007/057195 2007-03-30 2007-03-30 イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末 WO2008126284A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2007/057195 WO2008126284A1 (ja) 2007-03-30 2007-03-30 イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末
EP07740631.2A EP2141828A4 (en) 2007-03-30 2007-03-30 EQUALIZER CONTROL DEVICE, EQUALIZER CONTROL METHOD, AND WIRELESS TERMINAL COMPRISING THE CONTROL DEVICE
JP2009508831A JP4769893B2 (ja) 2007-03-30 2007-03-30 イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末
US12/564,398 US8335273B2 (en) 2007-03-30 2009-09-22 Control apparatus for and control method of equalizer, and wireless terminal having that control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/057195 WO2008126284A1 (ja) 2007-03-30 2007-03-30 イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/564,398 Continuation US8335273B2 (en) 2007-03-30 2009-09-22 Control apparatus for and control method of equalizer, and wireless terminal having that control apparatus

Publications (1)

Publication Number Publication Date
WO2008126284A1 true WO2008126284A1 (ja) 2008-10-23

Family

ID=39863465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/057195 WO2008126284A1 (ja) 2007-03-30 2007-03-30 イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末

Country Status (4)

Country Link
US (1) US8335273B2 (ja)
EP (1) EP2141828A4 (ja)
JP (1) JP4769893B2 (ja)
WO (1) WO2008126284A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474360A (zh) * 2009-07-29 2012-05-23 松下电器产业株式会社 无线通信装置和信号检测方法
JP6070417B2 (ja) * 2013-05-29 2017-02-01 富士通株式会社 無線通信装置、重み係数演算方法、および重み係数演算プログラム
JP6213137B2 (ja) * 2013-10-17 2017-10-18 富士通株式会社 移動局、及び受信品質測定方法
US10470047B2 (en) * 2015-03-23 2019-11-05 Lg Electronics Inc. Method and apparatus for performing channel sensing in a wireless communication system
EP3139528B1 (en) * 2015-09-07 2020-04-22 Intel Corporation Communication device and method for signal determination in radio communication
US11533838B2 (en) 2017-12-27 2022-12-27 Green Industry Innovators, L.L.C. Apparatus and method for powering a garment
US11963113B2 (en) * 2019-08-09 2024-04-16 Qualcomm Incorporated Estimating a timing for a non-serving cell of a user equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730519A (ja) 1993-07-08 1995-01-31 Nec Corp Ｃｄｍａ受信機
JP2005311470A (ja) * 2004-04-16 2005-11-04 Ntt Docomo Inc 受信機、送信機および無線通信システム並びにチャネル推定方法
JP2005328311A (ja) 2004-05-13 2005-11-24 Ntt Docomo Inc 雑音電力推定装置、雑音電力推定方法及び信号検出装置
JP2006197350A (ja) * 2005-01-14 2006-07-27 National Institute Of Information & Communication Technology 超広帯域無線信号受信機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3978818B2 (ja) * 1997-08-08 2007-09-19 ソニー株式会社 微小ヘッド素子の製造方法
US7310394B2 (en) * 2004-01-09 2007-12-18 Wang Xiao-An LMMSE-based RAKE receiver with channel tap assignment
US7539240B2 (en) * 2004-03-12 2009-05-26 Telefonaftiebolaget Lm Ericsson (Publ) Method and apparatus for parameter estimation in a generalized rake receiver
JP4592358B2 (ja) * 2004-08-31 2010-12-01 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム及び移動通信方法
US7751511B2 (en) * 2006-10-19 2010-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for selecting a subset of modeled impairment correlation terms for use in received signal processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0730519A (ja) 1993-07-08 1995-01-31 Nec Corp Ｃｄｍａ受信機
JP2005311470A (ja) * 2004-04-16 2005-11-04 Ntt Docomo Inc 受信機、送信機および無線通信システム並びにチャネル推定方法
JP2005328311A (ja) 2004-05-13 2005-11-24 Ntt Docomo Inc 雑音電力推定装置、雑音電力推定方法及び信号検出装置
JP2006197350A (ja) * 2005-01-14 2006-07-27 National Institute Of Information & Communication Technology 超広帯域無線信号受信機

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"HSDPA improvements for UE categories 7 and 8", 3GPP R4-040680, November 2004 (2004-11-01)
"Reference structure for interference mitigation simulations with HSDPA and receiver diversity", 3GPP R4-060514, May 2006 (2006-05-01)
A. KLEIN: "Data Detection Algorithms Specially Designed for the Downlink of Mobile Radio Systems", PROC. OF IEEE VTC'97, May 1997 (1997-05-01), pages 203 - 207
See also references of EP2141828A4 *

Also Published As

Publication number Publication date
US8335273B2 (en) 2012-12-18
JPWO2008126284A1 (ja) 2010-07-22
EP2141828A4 (en) 2014-04-16
US20100008412A1 (en) 2010-01-14
JP4769893B2 (ja) 2011-09-07
EP2141828A1 (en) 2010-01-06

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