EP1985026A4 - Wireless communication unit and method for receiving a wireless signal - Google Patents

Wireless communication unit and method for receiving a wireless signal

Info

Publication number
EP1985026A4
EP1985026A4 EP07763525A EP07763525A EP1985026A4 EP 1985026 A4 EP1985026 A4 EP 1985026A4 EP 07763525 A EP07763525 A EP 07763525A EP 07763525 A EP07763525 A EP 07763525A EP 1985026 A4 EP1985026 A4 EP 1985026A4
Authority
EP
European Patent Office
Prior art keywords
receiving
communication unit
wireless communication
wireless
wireless signal
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.)
Withdrawn
Application number
EP07763525A
Other languages
German (de)
French (fr)
Other versions
EP1985026A2 (en
Inventor
Jean Sidon
Yaniv Alon
Salomon Serfaty
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
Motorola Solutions Inc
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 Motorola Solutions Inc filed Critical Motorola Solutions Inc
Publication of EP1985026A2 publication Critical patent/EP1985026A2/en
Publication of EP1985026A4 publication Critical patent/EP1985026A4/en
Withdrawn legal-status Critical Current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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/45—Soft decoding, i.e. using symbol reliability information
    • 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
    • H03M13/47—Error detection, forward error correction or error protection, not provided for in groups H03M13/01 - H03M13/37
    • 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
    • H03M13/61—Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
    • H03M13/612—Aspects specific to channel or signal-to-noise ratio estimation
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • H03M13/6591—Truncation, saturation and clamping
    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Noise Elimination (AREA)
EP07763525A 2006-02-03 2007-02-02 Wireless communication unit and method for receiving a wireless signal Withdrawn EP1985026A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0602195A GB2434948B (en) 2006-02-03 2006-02-03 Wireless communication unit and method for receiving a wireless signal
PCT/US2007/061501 WO2007092744A2 (en) 2006-02-03 2007-02-02 Wireless communication unit and method for receiving a wireless signal

Publications (2)

Publication Number Publication Date
EP1985026A2 EP1985026A2 (en) 2008-10-29
EP1985026A4 true EP1985026A4 (en) 2012-12-19

Family

ID=36100992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07763525A Withdrawn EP1985026A4 (en) 2006-02-03 2007-02-02 Wireless communication unit and method for receiving a wireless signal

Country Status (3)

Country Link
EP (1) EP1985026A4 (en)
GB (1) GB2434948B (en)
WO (1) WO2007092744A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7876846B2 (en) * 2007-03-28 2011-01-25 Aspen Acquisition Corporation Method of QAM soft demapping
US7551106B1 (en) 2007-12-18 2009-06-23 Telefonaktiebolaget Lm Ericsson (Publ) Adjusting soft values to reduce bias
WO2009086080A2 (en) * 2007-12-21 2009-07-09 Qualcomm Incorporated Scaling and clipping of a digital received signal according to the modulation format of the measured c/ i
US8073076B2 (en) * 2007-12-21 2011-12-06 Qualcomm Incorporated Method and apparatus for processing a communication signal
EP2088725B1 (en) 2008-02-11 2014-05-07 Telefonaktiebolaget LM Ericsson (publ) Technique for soft bit scaling
US8311143B2 (en) * 2008-03-31 2012-11-13 Qualcomm Incorporated Scaling methods and apparatus using SNR estimate to avoid overflow
US9113364B2 (en) * 2012-08-09 2015-08-18 Microsoft Technology Licensing, Llc Extended access point
US9602236B2 (en) 2013-06-18 2017-03-21 Samsung Electronics Co., Ltd. Computing system with decoding adjustment mechanism and method of operation thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040168114A1 (en) * 2003-02-26 2004-08-26 Tom Richardson Soft information scaling for iterative decoding
US20040258139A1 (en) * 2003-06-06 2004-12-23 June Namgoong Method and apparatus for near-optimal scaling of log-likelihood ratio (LLR) computation in turbo decoding for hybrid automatic repeat request (ARQ)
US20050025076A1 (en) * 2003-07-29 2005-02-03 Arunava Chaudhuri Scaling and quantizing soft-decision metrics for decoding
WO2005071913A1 (en) * 2004-01-21 2005-08-04 Qualcomm Incorporated Data detection for a hierarchical coded data transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450453A (en) * 1994-09-28 1995-09-12 Motorola, Inc. Method, apparatus and system for decoding a non-coherently demodulated signal
US6377607B1 (en) * 1999-05-13 2002-04-23 Qualcomm Incorporated System and method for performing accurate demodulation of turbo-encoded signals via pilot assisted coherent demodulation
US7173990B2 (en) * 2001-12-27 2007-02-06 Dsp Group Inc. Joint equalization, soft-demapping and phase error correction in wireless system with receive diversity
US7340013B2 (en) * 2002-10-24 2008-03-04 Agere Systems Inc. Soft sample scaling in a turbo decoder
US6966024B2 (en) * 2002-12-31 2005-11-15 Motorola, Inc. Method and device for adaptive quantization of soft bits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040168114A1 (en) * 2003-02-26 2004-08-26 Tom Richardson Soft information scaling for iterative decoding
US20040258139A1 (en) * 2003-06-06 2004-12-23 June Namgoong Method and apparatus for near-optimal scaling of log-likelihood ratio (LLR) computation in turbo decoding for hybrid automatic repeat request (ARQ)
US20050025076A1 (en) * 2003-07-29 2005-02-03 Arunava Chaudhuri Scaling and quantizing soft-decision metrics for decoding
WO2005071913A1 (en) * 2004-01-21 2005-08-04 Qualcomm Incorporated Data detection for a hierarchical coded data transmission

Also Published As

Publication number Publication date
GB2434948A (en) 2007-08-08
GB0602195D0 (en) 2006-03-15
WO2007092744B1 (en) 2008-08-21
GB2434948B (en) 2008-04-09
WO2007092744A2 (en) 2007-08-16
EP1985026A2 (en) 2008-10-29
WO2007092744A3 (en) 2008-06-19

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Legal Events

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Extension state: AL BA HR MK RS

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MOTOROLA SOLUTIONS, INC.

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20121116

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Effective date: 20121210

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18D Application deemed to be withdrawn

Effective date: 20130423