WO2005018127A3 - Method of filtering a useful radio communication signal, comprising a digital power estimation, and corresponding radio communication device - Google Patents

Method of filtering a useful radio communication signal, comprising a digital power estimation, and corresponding radio communication device Download PDF

Info

Publication number
WO2005018127A3
WO2005018127A3 PCT/FR2004/002109 FR2004002109W WO2005018127A3 WO 2005018127 A3 WO2005018127 A3 WO 2005018127A3 FR 2004002109 W FR2004002109 W FR 2004002109W WO 2005018127 A3 WO2005018127 A3 WO 2005018127A3
Authority
WO
WIPO (PCT)
Prior art keywords
radio communication
filtering
useful
digital power
power estimation
Prior art date
Application number
PCT/FR2004/002109
Other languages
French (fr)
Other versions
WO2005018127A2 (en
Inventor
Franck Bietrix
Brice Mathieu
Original Assignee
Wavecom
Franck Bietrix
Brice Mathieu
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 Wavecom, Franck Bietrix, Brice Mathieu filed Critical Wavecom
Publication of WO2005018127A2 publication Critical patent/WO2005018127A2/en
Publication of WO2005018127A3 publication Critical patent/WO2005018127A3/en

Links

Classifications

    • 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
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end

Abstract

The invention relates to a method of filtering a useful radio communication signal. According to the invention, one such method involves the use of a digital adaptive filter. The inventive method comprises the following steps: a digital estimation of at least one power value that is representative of a received useful digital signal is obtained in a radio frequency (RF) processing module; the estimated power value(s) are read by a baseband processing module; and said read power value(s) is/are stored in the baseband processing module.
PCT/FR2004/002109 2003-08-08 2004-08-06 Method of filtering a useful radio communication signal, comprising a digital power estimation, and corresponding radio communication device WO2005018127A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309808A FR2858728B1 (en) 2003-08-08 2003-08-08 METHOD OF FILTERING A USEFUL RADIOCOMMUNICATION SIGNAL USING DIGITAL POWER ESTIMATION AND CORRESPONDING RADIO COMMUNICATION DEVICE
FR0309808 2003-08-08

Publications (2)

Publication Number Publication Date
WO2005018127A2 WO2005018127A2 (en) 2005-02-24
WO2005018127A3 true WO2005018127A3 (en) 2005-04-21

Family

ID=34073118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/002109 WO2005018127A2 (en) 2003-08-08 2004-08-06 Method of filtering a useful radio communication signal, comprising a digital power estimation, and corresponding radio communication device

Country Status (2)

Country Link
FR (1) FR2858728B1 (en)
WO (1) WO2005018127A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6473602B1 (en) * 1996-10-28 2002-10-29 Ericsson Inc. Mobile assisted handoff in radiocommunication systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6473602B1 (en) * 1996-10-28 2002-10-29 Ericsson Inc. Mobile assisted handoff in radiocommunication systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VALKAMA M ET AL: "Advanced method for I/Q imbalance compensation in communication receivers", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE, INC. NEW YORK, US, vol. 49, no. 10, October 2001 (2001-10-01), pages 2335 - 2344, XP002240824, ISSN: 1053-587X *

Also Published As

Publication number Publication date
WO2005018127A2 (en) 2005-02-24
FR2858728A1 (en) 2005-02-11
FR2858728B1 (en) 2005-10-14

Similar Documents

Publication Publication Date Title
WO2005043796A3 (en) Method and system for an adaptive wireless communication system optimized for economic benefit
WO2005062477A3 (en) Method, apparatus and systems for digital radio communication systems
WO2002015502A3 (en) Adaptive linear equalisation for walsh-modulated
DE69923602D1 (en) Adaptive receiver for wireless communication
JP4287488B2 (en) Receiver circuit
CA2530622A1 (en) Method and apparatus for suppressing co-channel interference in a receiver
WO2002013572A3 (en) Method and apparatus for filtering and compressing sound signals
EP1814277A3 (en) Noise cancelling method and apparatus
WO2007111718A3 (en) Multi-stage receiver for wireless communication
WO2008039380A3 (en) Integrating an fm transmitter into a cellular telephone
WO2003065584A3 (en) Dual bandwidth phase lock loop filters for multimode radios
HK1059157A1 (en) Multi-protocol receiver and method for receiving awireless communication
WO2003092183A3 (en) Transceiver device
WO2003019800A3 (en) Method and apparatus for conversion of radio frequency (rf) signals using aperiodic mixing signals
JP2011507320A5 (en)
CN201234318Y (en) Television receiving system and vehicle-mounted television device
CN1359562A (en) Radlo receiver and method for preloading an average dc-offset into a channel filter
WO2007076299A3 (en) Telecommunications terminal and method of operation of the terminal
US7830912B2 (en) Communications device capable of simultaneously operating in a dual-band CDMA communications system and a dual-band GSM communications system
EP1524773A3 (en) System and method to perform adaptive channel filtering on a radio frequency burst in a cellular wireless network
WO2002060089A3 (en) Adaptive filtering for wireless communication
EP1339166A3 (en) Direct conversion receivers and methods therefor
WO2002080388A3 (en) High frequency switch, radio communication apparatus, and high frequency switching method
WO2002009315A1 (en) Receiving apparatus and receiving method for radio communication
WO2002032066A3 (en) Mode controller for signal acquisition and tracking in an ultra wideband communication system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase