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WO2003039058A3 - Estimation of channel parameters using re-encoding - Google Patents

Estimation of channel parameters using re-encoding Download PDF

Info

Publication number
WO2003039058A3
WO2003039058A3 PCT/GB2002/004801 GB0204801W WO03039058A3 WO 2003039058 A3 WO2003039058 A3 WO 2003039058A3 GB 0204801 W GB0204801 W GB 0204801W WO 03039058 A3 WO03039058 A3 WO 03039058A3
Authority
WO
WIPO (PCT)
Prior art keywords
cer
snr
wer
determined
channel parameters
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.)
Ceased
Application number
PCT/GB2002/004801
Other languages
French (fr)
Other versions
WO2003039058A2 (en
Inventor
Timothy Fisher-Jeffes
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.)
Aeroflex Cambridge Ltd
Original Assignee
Ubinetics Ltd
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 Ubinetics Ltd filed Critical Ubinetics Ltd
Priority to AU2002337303A priority Critical patent/AU2002337303A1/en
Publication of WO2003039058A2 publication Critical patent/WO2003039058A2/en
Publication of WO2003039058A3 publication Critical patent/WO2003039058A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

A method is disclosed to estimate channel parameters like the raw channel bit error rate (CER), the word error rate (WER) or the signal-to-noise ratio (SNR) in a communication system. To this purpose, the received signal (10) is decoded (12) and the reliability of the decoded data is checked (16) by means such as a CRC algorithm. If the check is successful, the data is re-encoded (20) and compared (14) with original received sequence (10). The CER or the SNR can be determined. Since there is a one-to-one relation between the CER and the SNR, one value can be determined from the other value. Moreover, since the relation between the SNR or the CER at the input and the WER at the output of the decoder is known, the WER can be determined from the SNR or the CER. The use of look-up tables is disclosed to map each of the values into the other.
PCT/GB2002/004801 2001-10-31 2002-10-24 Estimation of channel parameters using re-encoding Ceased WO2003039058A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002337303A AU2002337303A1 (en) 2001-10-31 2002-10-24 Estimation of channel parameters using re-encoding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0126156A GB2381712A (en) 2001-10-31 2001-10-31 Assessing quality of channels in communications systems
GB0126156.9 2001-10-31

Publications (2)

Publication Number Publication Date
WO2003039058A2 WO2003039058A2 (en) 2003-05-08
WO2003039058A3 true WO2003039058A3 (en) 2003-07-03

Family

ID=9924890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/004801 Ceased WO2003039058A2 (en) 2001-10-31 2002-10-24 Estimation of channel parameters using re-encoding

Country Status (3)

Country Link
AU (1) AU2002337303A1 (en)
GB (1) GB2381712A (en)
WO (1) WO2003039058A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2403113B (en) * 2002-08-16 2005-05-11 Toshiba Res Europ Ltd Channel estimation and training sequence determination
US7424273B2 (en) * 2003-11-18 2008-09-09 Lucent Technologies Inc. Evaluating performance of a multiple-input multiple output (MIMO) communications link
FR2865874B1 (en) * 2004-02-02 2006-04-28 Nec Technologies Uk Ltd METHOD FOR EVALUATING THE QUALITY OF DATA TRANSMISSION ON A VARIABLE CODING RATE MULTI-RATE DIGITAL LINK
DE602005003835T2 (en) 2004-07-19 2008-04-17 Koninklijke Philips Electronics N.V. SIR ESTIMATION TECHNIQUES

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648032A1 (en) * 1993-10-11 1995-04-12 Nokia Mobile Phones Ltd. A signal quality detecting circuit and method for receivers in the GSM system
EP0810738A2 (en) * 1996-05-27 1997-12-03 Sony Corporation Receiving method and receiving apparatus
WO1999048237A1 (en) * 1998-03-16 1999-09-23 Nokia Networks Oy A method for estimating channel bit error ratio, and receiver
US6163571A (en) * 1998-04-24 2000-12-19 Ericsson Inc. Method for measuring received signal quality in a mobile wireless communication system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6333028A (en) * 1986-07-26 1988-02-12 Nec Corp Signal detection system
GB2305083B (en) * 1995-09-07 2000-03-29 Motorola Ltd Method of bit error rate calculation and apparatus therefor
US6539205B1 (en) * 1998-03-23 2003-03-25 Skyworks Solutions, Inc. Traffic channel quality estimation from a digital control channel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648032A1 (en) * 1993-10-11 1995-04-12 Nokia Mobile Phones Ltd. A signal quality detecting circuit and method for receivers in the GSM system
EP0810738A2 (en) * 1996-05-27 1997-12-03 Sony Corporation Receiving method and receiving apparatus
WO1999048237A1 (en) * 1998-03-16 1999-09-23 Nokia Networks Oy A method for estimating channel bit error ratio, and receiver
US6163571A (en) * 1998-04-24 2000-12-19 Ericsson Inc. Method for measuring received signal quality in a mobile wireless communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PURSLEY M B ET AL: "CHANNEL QUALITY ESTIMATION WITH CHANNEL ERROR COUNTS FOR ADAPTIVE SIGNALING IN WIRELESS COMMUNICATIONS", PROCEEDINGS OF THE 2000 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY. ISIT 2000. SORRENTO, ITALY, JUNE 25 - 30, 2000, IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY, NEW YORK, NY: IEEE, US, 25 June 2000 (2000-06-25), pages 109, XP001082660, ISBN: 0-7803-5858-9 *

Also Published As

Publication number Publication date
AU2002337303A1 (en) 2003-05-12
GB0126156D0 (en) 2002-01-02
GB2381712A (en) 2003-05-07
WO2003039058A2 (en) 2003-05-08

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