FI20085026A0 - Apparat, förfarande och dataprogram - Google Patents

Apparat, förfarande och dataprogram

Info

Publication number
FI20085026A0
FI20085026A0 FI20085026A FI20085026A FI20085026A0 FI 20085026 A0 FI20085026 A0 FI 20085026A0 FI 20085026 A FI20085026 A FI 20085026A FI 20085026 A FI20085026 A FI 20085026A FI 20085026 A0 FI20085026 A0 FI 20085026A0
Authority
FI
Finland
Prior art keywords
computer program
program
computer
Prior art date
Application number
FI20085026A
Other languages
English (en)
Finnish (fi)
Inventor
Ilkka Urvas
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Priority to FI20085026A priority Critical patent/FI20085026A0/sv
Publication of FI20085026A0 publication Critical patent/FI20085026A0/sv
Priority to US12/081,188 priority patent/US8363750B2/en
Priority to PCT/FI2009/050018 priority patent/WO2009090302A1/en

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
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • 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
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
FI20085026A 2008-01-14 2008-01-14 Apparat, förfarande och dataprogram FI20085026A0 (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20085026A FI20085026A0 (sv) 2008-01-14 2008-01-14 Apparat, förfarande och dataprogram
US12/081,188 US8363750B2 (en) 2008-01-14 2008-04-11 Apparatus, method and computer program for error compensation
PCT/FI2009/050018 WO2009090302A1 (en) 2008-01-14 2009-01-13 Apparatus, method and computer program for error compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20085026A FI20085026A0 (sv) 2008-01-14 2008-01-14 Apparat, förfarande och dataprogram

Publications (1)

Publication Number Publication Date
FI20085026A0 true FI20085026A0 (sv) 2008-01-14

Family

ID=39004326

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20085026A FI20085026A0 (sv) 2008-01-14 2008-01-14 Apparat, förfarande och dataprogram

Country Status (3)

Country Link
US (1) US8363750B2 (sv)
FI (1) FI20085026A0 (sv)
WO (1) WO2009090302A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8345783B1 (en) * 2007-04-06 2013-01-01 Olympus Corporation Phase tracking system and method
CN107819710B (zh) 2016-09-12 2020-05-12 深圳市中兴微电子技术有限公司 Iq失配补偿方法和装置、补偿设备及通信设备
JP6941736B2 (ja) * 2019-01-18 2021-09-29 シェンチェン グディックス テクノロジー カンパニー，リミテッド 信号処理回路と、関連するチップ、流量計および方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5867059A (en) * 1995-06-22 1999-02-02 National Science Council Demodulating system for MSK and GMSK signal using a fast fourier transform converter
US7263144B2 (en) * 2001-03-20 2007-08-28 Texas Instruments Incorporated Method and system for digital equalization of non-linear distortion
US6724331B1 (en) * 2001-11-27 2004-04-20 Ellipsis Digital Systems, Inc. Adaptive digital spectral compensation and calibration of analog components and transceiver chains
US7010278B2 (en) * 2002-10-25 2006-03-07 Freescale Semiconductor, Inc. Sideband suppression method and apparatus for quadrature modulator using magnitude measurements
US7035601B2 (en) * 2003-02-27 2006-04-25 Nokia Corporation Data transmission method, base station and transmitter for compensating for non-linearities in a transmission chain
TW200507471A (en) * 2003-06-25 2005-02-16 Koninkl Philips Electronics Nv Distortion/efficiency adaptation in a variable data-rate radio transmitter
US20040264596A1 (en) * 2003-06-27 2004-12-30 Andrew Corporation, A Delaware Corporation Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics
US7570923B2 (en) * 2004-05-18 2009-08-04 Agere Systems Inc. I/Q compensation of frequency dependent response mismatch in a pair of analog low-pass filters
US7522011B2 (en) * 2005-08-15 2009-04-21 Nokia Corporation High pass modulation of a phase locked loop
US7466197B2 (en) * 2005-11-15 2008-12-16 Alcatel-Lucent Usa Inc. Selecting samples for amplifier digital predistortion estimation
JP4550746B2 (ja) * 2006-02-01 2010-09-22 株式会社東芝 Ｏｆｄｍを用いた無線通信方法、ｏｆｄｍ送信装置及びｏｆｄｍ受信装置
US7675983B2 (en) * 2006-04-14 2010-03-09 Freescale Semiconductor, Inc. Mitigation of DC distortion in OFDM receivers
JP2007329539A (ja) * 2006-06-06 2007-12-20 Fujitsu Ltd 無線送信装置及び無線送信方法
US7881402B2 (en) * 2006-09-07 2011-02-01 Via Technologies, Inc. Compensation for gain imbalance, phase imbalance and DC offsets in a transmitter
US8204102B2 (en) * 2008-08-07 2012-06-19 Entropic Communications, Inc. IQ imbalance equalization system and method

Also Published As

Publication number Publication date
US20090180575A1 (en) 2009-07-16
US8363750B2 (en) 2013-01-29
WO2009090302A1 (en) 2009-07-23

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Legal Events

Date Code Title Description
FD Application lapsed