GB0518882D0 - Receiving apparatus, mobile communication terminal, and communication system - Google Patents

Receiving apparatus, mobile communication terminal, and communication system

Info

Publication number
GB0518882D0
GB0518882D0 GBGB0518882.6A GB0518882A GB0518882D0 GB 0518882 D0 GB0518882 D0 GB 0518882D0 GB 0518882 A GB0518882 A GB 0518882A GB 0518882 D0 GB0518882 D0 GB 0518882D0
Authority
GB
United Kingdom
Prior art keywords
receiving
quality
threshold
receiving quality
equalizing
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Withdrawn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
GBGB0518882.6A
Other versions
GB2430334A (en
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to GB0518882A priority Critical patent/GB2430334A/en
Publication of GB0518882D0 publication Critical patent/GB0518882D0/en
Publication of GB2430334A publication Critical patent/GB2430334A/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • 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
    • H04L25/03—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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only

Abstract

A receiving apparatus, a mobile communication terminal, and a communication system are provided that reduce power consumption and improve receiving performance even when changes occur in the receiving environment. Receiving apparatus 10, incorporated in a mobile communication terminal forming a communication system, has receiving quality threshold setter that receives as input a decoding determining signal outputted from error correction decoder 24 and outputs a threshold for use in determining receiving quality to receiving quality determiner 18. This receiving quality threshold setter 25 is able to adjust (change and correct) the threshold according to the result of error correction decoding outputted from error correction decoder 24. Based on the adjusted threshold, receiving quality determiner 18 determines receiving quality. Based on this determination result, controller 19 controls the operation of equalizer 22 or the operation of equalization and decoding processor 20. Power consumption in the receiver is therefore reduced, when a received signal is of high quality, equalizing is not necessary and is not performed. Also when a received signal is of very low quality, equalizing would not improve the result and equalizing is therefore not performed.
GB0518882A 2005-09-15 2005-09-15 Control of equalizer operation using signal quality thresholds in a receiver Withdrawn GB2430334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0518882A GB2430334A (en) 2005-09-15 2005-09-15 Control of equalizer operation using signal quality thresholds in a receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0518882A GB2430334A (en) 2005-09-15 2005-09-15 Control of equalizer operation using signal quality thresholds in a receiver

Publications (2)

Publication Number Publication Date
GB0518882D0 true GB0518882D0 (en) 2005-10-26
GB2430334A GB2430334A (en) 2007-03-21

Family

ID=35248865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0518882A Withdrawn GB2430334A (en) 2005-09-15 2005-09-15 Control of equalizer operation using signal quality thresholds in a receiver

Country Status (1)

Country Link
GB (1) GB2430334A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729189B (en) * 2008-10-13 2012-12-26 九旸电子股份有限公司 Transmitting-receiving device and receiver
GB2478004B (en) * 2010-02-23 2012-05-30 Canon Kk Transmitting data from a relay device to a destination device
GB2478760B (en) * 2010-03-17 2016-03-23 Phyworks Ltd Adaptive equalizing repeater with output control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3168610B2 (en) * 1991-06-27 2001-05-21 日本電気株式会社 Receiving machine
US7646802B2 (en) * 2003-06-02 2010-01-12 Qualcomm Incorporated Communication receiver with hybrid equalizer

Also Published As

Publication number Publication date
GB2430334A (en) 2007-03-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)