ATE536689T1 - Iq-ungleichgewichtskompensation bei anwesenheit von trägeroffset - Google Patents

Iq-ungleichgewichtskompensation bei anwesenheit von trägeroffset

Info

Publication number
ATE536689T1
ATE536689T1 AT08774536T AT08774536T ATE536689T1 AT E536689 T1 ATE536689 T1 AT E536689T1 AT 08774536 T AT08774536 T AT 08774536T AT 08774536 T AT08774536 T AT 08774536T AT E536689 T1 ATE536689 T1 AT E536689T1
Authority
AT
Austria
Prior art keywords
imbalance
frequency offset
wireless communication
compensation
communication signal
Prior art date
Application number
AT08774536T
Other languages
English (en)
Inventor
Niklas Andgart
Michal Stala
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE536689T1 publication Critical patent/ATE536689T1/de

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AT08774536T 2008-06-30 2008-06-30 Iq-ungleichgewichtskompensation bei anwesenheit von trägeroffset ATE536689T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/058383 WO2010000297A1 (en) 2008-06-30 2008-06-30 Iq-imbalance compensation in presence of carrier offset

Publications (1)

Publication Number Publication Date
ATE536689T1 true ATE536689T1 (de) 2011-12-15

Family

ID=40289230

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08774536T ATE536689T1 (de) 2008-06-30 2008-06-30 Iq-ungleichgewichtskompensation bei anwesenheit von trägeroffset

Country Status (5)

Country Link
US (1) US8594212B2 (de)
EP (1) EP2304914B1 (de)
CN (1) CN102077538A (de)
AT (1) ATE536689T1 (de)
WO (1) WO2010000297A1 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009125592A1 (ja) * 2008-04-11 2009-10-15 パナソニック株式会社 受信装置、集積回路、デジタルテレビ受像機、受信方法、及び受信プログラム
US20100226100A1 (en) * 2009-03-05 2010-09-09 Yen International, Llc Modular multimedia management and distribution system
US8331506B2 (en) * 2010-03-12 2012-12-11 Telefonaktiebolaget L M Ericsson (Publ) Frequency-dependent IQ imbalance estimation
JP5526901B2 (ja) * 2010-03-19 2014-06-18 富士通株式会社 直交変復調機能を含む無線通信装置におけるｉｑ不平衡補正方法
US8565352B2 (en) 2010-05-03 2013-10-22 Telefonaktiebolaget L M Ericsson (Publ) Digital IQ imbalance compensation for dual-carrier double conversion receiver
KR101152268B1 (ko) * 2010-09-03 2012-06-08 주식회사 이노와이어리스 Ｓｃ-ｆｄｍａ 시스템의 수신단에서의 ｉ／ｑ 옵셋 제거 장치 및 방법
US8548096B2 (en) * 2010-12-31 2013-10-01 Telefonaktiebolaget L M Ericsson (Publ) Controllable frequency offset for inphase and Quadrature (IQ) imbalance estimation
BR112013002605B1 (pt) 2011-02-18 2022-08-23 Sun Patent Trust Método de transmissão, aparelho de transmissão, método de recepção e aparelho de recepção
US8842753B2 (en) * 2011-06-27 2014-09-23 Cisco Technology, Inc. Orthogonal frequency division multiplexed (OFDM) demodulator imbalance estimation
CN102347927A (zh) * 2011-10-28 2012-02-08 重庆邮电大学 用于lte系统提高evm测量精度的方法和装置
US8971465B2 (en) * 2012-03-30 2015-03-03 Qualcomm Incorporated Receiver-side estimation of and compensation for signal impairments
US9264156B2 (en) 2012-04-20 2016-02-16 Telefonaktiebolaget L M Ericsson (Publ) Technique for calibrating a receiver apparatus
US9608679B2 (en) 2012-11-07 2017-03-28 Motorola Solutions, Inc. Very low intermediate frequency (VLIF) receiver and a method of controlling a VLIF receiver
US9143365B2 (en) 2013-01-30 2015-09-22 Qualcomm Incorporated Channel estimation using averaging and interpolation
CN104052695B (zh) * 2013-03-15 2017-05-17 联发科技（新加坡）私人有限公司 配置频率相依i/q不平衡补偿滤波器的方法及其装置
US8964875B2 (en) * 2013-06-10 2015-02-24 Mstar Semiconductor, Inc. Adaptive IQ imbalance estimation
US9143364B2 (en) * 2013-10-10 2015-09-22 Broadcom Corporation IQ imbalance estimation using broadcast signals
US9225574B2 (en) * 2013-12-13 2015-12-29 SiTune Corporation Synchronization and acquisition in radio communication systems
US9137082B1 (en) 2014-02-27 2015-09-15 King Fahd University Of Petroleum And Minerals System and method for joint compensation of power amplifier's distortion
TWI547126B (zh) 2014-05-29 2016-08-21 瑞昱半導體股份有限公司 校正傳送器／接收器的第一、第二訊號路徑之間的不匹配的寬頻校正方法與寬頻校正裝置
CN105187338B (zh) * 2014-05-30 2019-03-01 瑞昱半导体股份有限公司 通信系统校正方法及校正装置
US9407313B2 (en) 2014-07-31 2016-08-02 Motorola Solutions, Inc. Radio housing having through-hole connector for coupling accessories
GB2537800B (en) * 2014-12-22 2018-05-30 Imagination Tech Ltd IQ imbalance estimator
CN105635009B (zh) * 2015-12-29 2019-02-26 西安电子科技大学 联合补偿多支路串扰和iq非平衡的自适应mimo预失真方法
CN109075950B (zh) * 2016-05-09 2022-02-22 苹果公司 用于5g系统的相位补偿参考信号
US9847802B1 (en) * 2016-08-16 2017-12-19 Xilinx, Inc. Reconfiguration of single-band transmit and receive paths to multi-band transmit and receive paths in an integrated circuit
CN114650068B (zh) * 2020-12-17 2023-08-15 武汉芯泰科技有限公司 一种数字iq失衡估计和补偿的方法及装置
US12068904B2 (en) * 2020-12-23 2024-08-20 Intel Corporation Method and apparatus for in-phase and quadrature imbalance correction in a frequency domain
CN115766357B (zh) * 2022-11-14 2024-09-20 集益威半导体(上海)有限公司 动态功耗管理系统
CN116232558B (zh) * 2023-05-10 2023-08-18 北京融为科技有限公司 一种iq时延补偿方法、装置、电子设备和存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3626047B2 (ja) * 1999-10-05 2005-03-02 株式会社ケンウッド 同期捕捉回路及び同期捕捉方法
US7158586B2 (en) * 2002-05-03 2007-01-02 Atheros Communications, Inc. Systems and methods to provide wideband magnitude and phase imbalance calibration and compensation in quadrature receivers
US7466768B2 (en) * 2004-06-14 2008-12-16 Via Technologies, Inc. IQ imbalance compensation
JP4261578B2 (ja) * 2006-12-27 2009-04-30 株式会社東芝 無線通信装置及び受信方法

Also Published As

Publication number Publication date
EP2304914B1 (de) 2011-12-07
EP2304914A1 (de) 2011-04-06
WO2010000297A1 (en) 2010-01-07
CN102077538A (zh) 2011-05-25
US8594212B2 (en) 2013-11-26
US20110135036A1 (en) 2011-06-09

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