CA2109412A1 - Method and Apparatus for Estimating Signal Weighting Parameters in a Receiver - Google Patents

Method and Apparatus for Estimating Signal Weighting Parameters in a Receiver

Info

Publication number
CA2109412A1
CA2109412A1 CA2109412A CA2109412A CA2109412A1 CA 2109412 A1 CA2109412 A1 CA 2109412A1 CA 2109412 A CA2109412 A CA 2109412A CA 2109412 A CA2109412 A CA 2109412A CA 2109412 A1 CA2109412 A1 CA 2109412A1
Authority
CA
Canada
Prior art keywords
receiver
signal
decoded
data
signal weighting
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.)
Granted
Application number
CA2109412A
Other languages
French (fr)
Other versions
CA2109412C (en
Inventor
Gregory M. Chiasson
Phillip D. Rasky
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.)
Motorola Solutions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2109412A1 publication Critical patent/CA2109412A1/en
Application granted granted Critical
Publication of CA2109412C publication Critical patent/CA2109412C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

A receiver (100) has improved signal weighting parameter estimation. The receiver receives a signal (101) having encoded data. A decision circuit (106) is coupled to the received encoded data to generate a first signal weighting parameter which is used to modify the received encoded data. The modified data is then decoded to output the decoded data. The decoded data output is then re-encoded using a technique similar to that used by the transmitter. The re-encoded data is then used to calculate a second signal weighting parameter which, in turn, is used to modify a stored replica of signal (101). The modified version of the stored replica is then decoded to yield a more accurate estimate of the information contained within the signal (101) at a receiver (100).
CA002109412A 1992-03-19 1993-02-08 Method and apparatus for estimating signal weighting parameters in a receiver Expired - Fee Related CA2109412C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US854,506 1992-03-19
US07/854,506 US5278871A (en) 1992-03-19 1992-03-19 Method and apparatus for estimating signal weighting parameters in a receiver

Publications (2)

Publication Number Publication Date
CA2109412A1 true CA2109412A1 (en) 1993-09-20
CA2109412C CA2109412C (en) 1998-06-30

Family

ID=25318867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002109412A Expired - Fee Related CA2109412C (en) 1992-03-19 1993-02-08 Method and apparatus for estimating signal weighting parameters in a receiver

Country Status (10)

Country Link
US (1) US5278871A (en)
EP (1) EP0585427B1 (en)
JP (1) JP3359636B2 (en)
KR (1) KR0129041B1 (en)
CA (1) CA2109412C (en)
DE (1) DE69322022T2 (en)
FI (1) FI114176B (en)
MX (1) MX9301552A (en)
TW (1) TW251403B (en)
WO (1) WO1993019519A1 (en)

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GB9521739D0 (en) * 1995-10-24 1996-01-03 Nat Transcommunications Ltd Decoding carriers encoded using orthogonal frequency division multiplexing
US6035007A (en) * 1996-03-12 2000-03-07 Ericsson Inc. Effective bypass of error control decoder in a digital radio system
US5757821A (en) * 1996-07-22 1998-05-26 Telefonaktiebolaget Lm Ericsson Method and apparatus for detecting communication signals having unequal error protection
JPH10322408A (en) * 1997-03-19 1998-12-04 Sony Corp Receiver and signal receiving method
US5917866A (en) * 1997-04-04 1999-06-29 Trimble Navigation Limited Code multipath estimation for weighted or modified tracking using weighted or modified correlations
US6009552A (en) * 1997-06-18 1999-12-28 Motorola, Inc. Soft-decision syndrome-based decoder for convolutional codes
JP3745502B2 (en) * 1997-06-24 2006-02-15 ソニー株式会社 Reception device, transmission / reception device, and communication method
DE19736676C1 (en) * 1997-08-22 1998-12-10 Siemens Ag Data packet transmission method in digital transmission system
FR2776151B1 (en) 1998-03-10 2000-04-14 St Microelectronics Sa METHOD AND DEVICE FOR DECODING A RADIOFREQUENCY TRANSMISSION CHANNEL, ESPECIALLY FOR DIGITAL TERRESTRIAL BROADCASTING USING OFDM MODULATION
KR100686480B1 (en) * 1998-09-29 2007-02-23 코닌클리케 필립스 일렉트로닉스 엔.브이. How to modify coded video data
FR2786642B1 (en) * 1998-11-30 2002-03-08 France Telecom METHOD AND DEVICE FOR RECEIVING A SIGNAL, IMPLEMENTING HARD DECISION COMPENSATION FOR THE LATENCY OF A SWEET DECODING DECODING, AND USE THEREOF
US6567481B1 (en) * 1999-04-30 2003-05-20 Ericsson Inc. Receivers including iterative map detection and related methods
KR100636975B1 (en) * 1999-12-16 2006-10-19 주식회사 케이티 Demodulator in soft decision channel decoding device and method thereof
DE60034306T2 (en) * 2000-02-28 2007-12-27 Lucent Technologies Inc. Method and receiver for estimating channel impact responses for the equalization of digital signals
EP1128618A3 (en) * 2000-02-28 2004-08-25 Lucent Technologies Inc. Method for tracking a time-variant channel impulse response
FR2808632B1 (en) * 2000-05-03 2002-06-28 Mitsubishi Electric Inf Tech TURBO-DECODING PROCESS WITH RECONCODING MISTAKEN INFORMATION AND FEEDBACK
US6671340B1 (en) * 2000-06-15 2003-12-30 Ibiquity Digital Corporation Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receivers
AU2002214234A1 (en) * 2000-11-06 2002-05-15 Cute Ltd. Reliable detection of a transport format identifier in a transport format identification field of a digital communication system
US8374218B2 (en) * 2000-12-05 2013-02-12 Google Inc. Combining signals with a shuffled-hadamard function
US8385470B2 (en) * 2000-12-05 2013-02-26 Google Inc. Coding a signal with a shuffled-Hadamard function
US7236545B2 (en) * 2001-06-08 2007-06-26 Broadcom Corporation Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion
KR100800882B1 (en) * 2001-08-14 2008-02-04 삼성전자주식회사 Demodulation Apparatus and Method in Communication System Using Octal Phase Shift Mode
DE60236878D1 (en) * 2001-09-18 2010-08-12 Interdigital Tech Corp METHOD AND DEVICE FOR THE INTERFERENCE CIRCUIT PROCEDURE AND NOISE EVALUATION ESTIMATION
US6816470B2 (en) * 2001-09-18 2004-11-09 Interdigital Technology Corporation Method and apparatus for interference signal code power and noise variance estimation
US7428278B2 (en) * 2002-05-09 2008-09-23 Interdigital Technology Corporation Method and apparatus for parallel midamble cancellation
GB2404822B (en) * 2003-08-07 2007-07-11 Ipwireless Inc Method and arrangement for noise variance and sir estimation
US7391816B2 (en) * 2003-09-17 2008-06-24 Intel Corporation Decoding upstream V.92-encoded signals
CN106453180B (en) * 2015-08-10 2019-06-21 博通集成电路（上海）股份有限公司 Improve the circuit and method of phase-detection
US10454615B2 (en) * 2017-05-05 2019-10-22 Khalifa University of Science and Technology SD decoder for digital communications

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US4519084A (en) * 1982-09-29 1985-05-21 At&T Bell Laboratories Matched filter for combating multipath fading
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US4631735A (en) * 1984-12-28 1986-12-23 Codex Corporation Coded modulation system with feedback
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US5031195A (en) * 1989-06-05 1991-07-09 International Business Machines Corporation Fully adaptive modem receiver using whitening matched filtering
US5157697A (en) * 1991-03-21 1992-10-20 Novatel Communications, Ltd. Receiver employing correlation technique for canceling cross-talk between in-phase and quadrature channels prior to decoding

Also Published As

Publication number Publication date
EP0585427A1 (en) 1994-03-09
DE69322022D1 (en) 1998-12-17
WO1993019519A1 (en) 1993-09-30
MX9301552A (en) 1993-09-01
CA2109412C (en) 1998-06-30
US5278871A (en) 1994-01-11
FI114176B (en) 2004-08-31
EP0585427A4 (en) 1995-03-08
FI935154A0 (en) 1993-11-19
FI935154L (en) 1993-11-19
EP0585427B1 (en) 1998-11-11
JPH06508016A (en) 1994-09-08
KR0129041B1 (en) 1998-10-01
DE69322022T2 (en) 1999-06-10
TW251403B (en) 1995-07-11
JP3359636B2 (en) 2002-12-24

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