DE602004026754D1 - Verfahren und Vorrichtung zur Signaldemodulation - Google Patents

Verfahren und Vorrichtung zur Signaldemodulation

Info

Publication number
DE602004026754D1
DE602004026754D1 DE602004026754T DE602004026754T DE602004026754D1 DE 602004026754 D1 DE602004026754 D1 DE 602004026754D1 DE 602004026754 T DE602004026754 T DE 602004026754T DE 602004026754 T DE602004026754 T DE 602004026754T DE 602004026754 D1 DE602004026754 D1 DE 602004026754D1
Authority
DE
Germany
Prior art keywords
amplitude
received
signal
data signal
data
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
DE602004026754T
Other languages
English (en)
Inventor
Yi-Pin Eric Wang
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE602004026754D1 publication Critical patent/DE602004026754D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709727—GRAKE type RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE602004026754T 2003-09-26 2004-07-06 Verfahren und Vorrichtung zur Signaldemodulation Active DE602004026754D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/672,492 US7269205B2 (en) 2003-09-26 2003-09-26 Method and apparatus for signal demodulation
PCT/US2004/021686 WO2005036849A1 (en) 2003-09-26 2004-07-06 Method and apparatus for signal demodulation

Publications (1)

Publication Number Publication Date
DE602004026754D1 true DE602004026754D1 (de) 2010-06-02

Family

ID=34435349

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004026754T Active DE602004026754D1 (de) 2003-09-26 2004-07-06 Verfahren und Vorrichtung zur Signaldemodulation

Country Status (7)

Country Link
US (1) US7269205B2 (de)
EP (1) EP1671462B1 (de)
KR (1) KR101063046B1 (de)
CN (1) CN101027886B (de)
AT (1) ATE465583T1 (de)
DE (1) DE602004026754D1 (de)
WO (1) WO2005036849A1 (de)

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* Cited by examiner, † Cited by third party
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US7269205B2 (en) 2003-09-26 2007-09-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for signal demodulation
US7668226B2 (en) * 2005-02-23 2010-02-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for estimating gain offsets for amplitude-modulated communication signals
US7389099B2 (en) * 2005-04-22 2008-06-17 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for canceling interference from high power, high data rate signals
US7486716B2 (en) * 2005-06-22 2009-02-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for using chip sample correlations in one or more received signal processing operations
US7590167B2 (en) 2005-08-30 2009-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for QAM demodulation in a generalized rake receiver
US7609754B2 (en) * 2005-08-30 2009-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received communication signal processing
US7933314B2 (en) * 2006-06-22 2011-04-26 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for communication receiver despreading resource management
US8126098B2 (en) 2006-09-12 2012-02-28 Marvell World Trade Ltd. Multi-rake receiver
US8358987B2 (en) * 2006-09-28 2013-01-22 Mediatek Inc. Re-quantization in downlink receiver bit rate processor
KR100969781B1 (ko) * 2007-01-31 2010-07-13 삼성전자주식회사 통신 시스템에서 가중치 계수 결정 방법 및 장치
US8467476B2 (en) * 2007-09-17 2013-06-18 Mediatek Inc. Scaling apparatus of a receiver
CN101953177A (zh) 2007-12-19 2011-01-19 福尔肯纳米有限公司 用于提高通信速度、频谱效率并实现其他益处的公共波形和边带抑制通信系统和方法
US8750407B2 (en) * 2008-06-17 2014-06-10 Telefonaktiebolaget L M Ericsson (Publ) Transmitter and method for transmitting soft pilot symbols in a digital communication system
US20090316674A1 (en) * 2008-06-18 2009-12-24 Yi-Pin Eric Wang Method and apparatus for demodulation of qam signal using symbol-specific amplitude reference estimation
CN102111860B (zh) * 2009-12-25 2013-08-14 电信科学技术研究院 一种信道的功率控制方法及设备
US20120071108A1 (en) * 2010-09-20 2012-03-22 Mediatek Inc. Radio Frequency Signal Control Module and Radio Frequency Signal Controlling Method
WO2012103934A1 (en) * 2011-02-01 2012-08-09 Telefonaktiebolaget L M Ericsson (Publ) Configuration of wireless receiver
JP2013115542A (ja) * 2011-11-28 2013-06-10 Toshiba Corp スケーリング決定装置及び方法
US10037522B2 (en) * 2012-01-17 2018-07-31 Raytheon Bbn Technologies Corp. Near-field communication (NFC) system and method for private near-field communication
US9661508B2 (en) * 2012-05-14 2017-05-23 Telefonaktiebolaget L M Ericsson (Publ) Methods and apparatus for determining a signal estimate by scaling
US8737458B2 (en) 2012-06-20 2014-05-27 MagnaCom Ltd. Highly-spectrally-efficient reception using orthogonal frequency division multiplexing
US8781008B2 (en) 2012-06-20 2014-07-15 MagnaCom Ltd. Highly-spectrally-efficient transmission using orthogonal frequency division multiplexing
US9166834B2 (en) * 2012-06-20 2015-10-20 MagnaCom Ltd. Method and system for corrupt symbol handling for providing high reliability sequences
US8675769B1 (en) 2012-06-20 2014-03-18 MagnaCom Ltd. Constellation map optimization for highly spectrally efficient communications
US9088400B2 (en) 2012-11-14 2015-07-21 MagnaCom Ltd. Hypotheses generation based on multidimensional slicing
US8811548B2 (en) 2012-11-14 2014-08-19 MagnaCom, Ltd. Hypotheses generation based on multidimensional slicing
KR102356963B1 (ko) * 2013-01-11 2022-02-08 선 페이턴트 트러스트 데이터 처리방법, 프리코딩 방법, 통신장치
US9118519B2 (en) 2013-11-01 2015-08-25 MagnaCom Ltd. Reception of inter-symbol-correlated signals using symbol-by-symbol soft-output demodulator
US8804879B1 (en) 2013-11-13 2014-08-12 MagnaCom Ltd. Hypotheses generation based on multidimensional slicing
US9130637B2 (en) 2014-01-21 2015-09-08 MagnaCom Ltd. Communication methods and systems for nonlinear multi-user environments
US9496900B2 (en) 2014-05-06 2016-11-15 MagnaCom Ltd. Signal acquisition in a multimode environment
US8891701B1 (en) 2014-06-06 2014-11-18 MagnaCom Ltd. Nonlinearity compensation for reception of OFDM signals
US9246523B1 (en) 2014-08-27 2016-01-26 MagnaCom Ltd. Transmitter signal shaping
US9276619B1 (en) 2014-12-08 2016-03-01 MagnaCom Ltd. Dynamic configuration of modulation and demodulation
US9191247B1 (en) 2014-12-09 2015-11-17 MagnaCom Ltd. High-performance sequence estimation system and method of operation
CN110505359B (zh) * 2018-05-18 2020-10-23 中国科学院上海高等研究院 无线广播通信系统中非均匀调制解调方法、系统、介质及终端

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Publication number Priority date Publication date Assignee Title
US5381450A (en) 1993-08-20 1995-01-10 Hitachi America, Ltd. Technique for automatically detecting the constellation size of a quadrature amplitude modulated (QAM) signal
US5506861A (en) * 1993-11-22 1996-04-09 Ericsson Ge Mobile Comminications Inc. System and method for joint demodulation of CDMA signals
US6108375A (en) 1997-07-15 2000-08-22 Lucent Technologies Inc. Equalization circuit for unknown QAM constellation size
JP3522651B2 (ja) 2000-05-19 2004-04-26 松下電器産業株式会社 通信端末装置及び復調方法
US20020136340A1 (en) 2000-06-02 2002-09-26 Enam Syed K. Two-stage multiplier circuit
US6952561B1 (en) * 2000-08-31 2005-10-04 Lucent Technologies Inc. Enhanced metric for bit detection on fading channels with unknown statistics
JP4164451B2 (ja) * 2002-03-07 2008-10-15 テレフオンアクチーボラゲット エル エム エリクソン（パブル） マルチレベル信号のためのソフト値計算
US7583760B2 (en) * 2002-11-22 2009-09-01 Telefonaktiebolaget L M Ericsson (Publ) Calculation of soft decision values using reliability information of the amplitude
US7555067B2 (en) * 2003-03-13 2009-06-30 Texas Instruments Incorporated Method and apparatus for decoder input scaling based on interference estimation in CDMA
US7269205B2 (en) 2003-09-26 2007-09-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for signal demodulation

Also Published As

Publication number Publication date
CN101027886B (zh) 2012-01-11
WO2005036849A1 (en) 2005-04-21
KR20060097716A (ko) 2006-09-14
KR101063046B1 (ko) 2011-09-07
EP1671462B1 (de) 2010-04-21
CN101027886A (zh) 2007-08-29
US7269205B2 (en) 2007-09-11
US20050163199A1 (en) 2005-07-28
ATE465583T1 (de) 2010-05-15
EP1671462A1 (de) 2006-06-21

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