[go: up one dir, main page]

BRPI0909371A2 - método e sistema para compensação de cd e agc - Google Patents

método e sistema para compensação de cd e agc

Info

Publication number
BRPI0909371A2
BRPI0909371A2 BRPI0909371A BRPI0909371A BRPI0909371A2 BR PI0909371 A2 BRPI0909371 A2 BR PI0909371A2 BR PI0909371 A BRPI0909371 A BR PI0909371A BR PI0909371 A BRPI0909371 A BR PI0909371A BR PI0909371 A2 BRPI0909371 A2 BR PI0909371A2
Authority
BR
Brazil
Prior art keywords
compensation method
agc compensation
agc
compensation
Prior art date
Application number
BRPI0909371A
Other languages
English (en)
Inventor
Iwen Yao
Jibing Wang
Tamer A Kadous
Weihong Jing
Yong Li
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0909371A2 publication Critical patent/BRPI0909371A2/pt

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/3052Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068Circuits generating control signals for both R.F. and I.F. stages
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061DC 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/3052Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3078Circuits generating control signals for digitally modulated signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BRPI0909371A 2008-03-29 2009-03-09 método e sistema para compensação de cd e agc BRPI0909371A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4066308P 2008-03-29 2008-03-29
US12/398,285 US8331892B2 (en) 2008-03-29 2009-03-05 Method and system for DC compensation and AGC
PCT/US2009/036585 WO2009123830A1 (en) 2008-03-29 2009-03-09 Method and system for dc compensation and agc

Publications (1)

Publication Number Publication Date
BRPI0909371A2 true BRPI0909371A2 (pt) 2016-07-26

Family

ID=40758982

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0909371A BRPI0909371A2 (pt) 2008-03-29 2009-03-09 método e sistema para compensação de cd e agc

Country Status (10)

Country Link
US (1) US8331892B2 (pt)
EP (1) EP2274885A1 (pt)
JP (2) JP2011521498A (pt)
KR (1) KR101141003B1 (pt)
CN (1) CN101981880B (pt)
BR (1) BRPI0909371A2 (pt)
CA (1) CA2718235C (pt)
RU (1) RU2458457C2 (pt)
TW (2) TWI520507B (pt)
WO (1) WO2009123830A1 (pt)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090268678A1 (en) * 2008-04-24 2009-10-29 Fujitsu Limited Method and apparatus for automatic gain control in a mobile orthogonal frequency division multiple access (ofdma) network
US8554251B2 (en) * 2009-06-29 2013-10-08 Qualcomm Incorporated Device, method, and apparatus for offline discontinuous reception (DRX) processing in cellular systems
US8780768B2 (en) * 2010-04-02 2014-07-15 Qualcomm Incorporated Automatic gain control acquisition in time division duplex systems
CN102348274B (zh) * 2010-07-30 2014-07-23 富士通株式会社 无线通信终端
US8793000B2 (en) * 2011-05-02 2014-07-29 Apple Inc. Idle mode receive antenna diversity system
CN102223330A (zh) * 2011-06-24 2011-10-19 中兴通讯股份有限公司 一种进行iq信号实时校准的方法和装置
CN102421182B (zh) * 2011-12-07 2014-03-12 中国科学院上海微系统与信息技术研究所 一种适用于无线传感器网络中的agc实现方法
GB2508910B (en) * 2012-12-14 2015-08-19 Broadcom Corp Calibration of a frequency converter
US9288776B2 (en) * 2013-11-05 2016-03-15 Qualcomm Incorporated Apparatus and method of wideband automatic gain control algorithm supporting multiple carriers with possibly different air interface technologies
EP2980801A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for estimating noise in an audio signal, noise estimator, audio encoder, audio decoder, and system for transmitting audio signals
KR102190358B1 (ko) * 2014-12-10 2020-12-11 삼성전자주식회사 통신 시스템에서 이득 제어를 위한 방법 및 장치
CN104954032B (zh) * 2015-05-22 2018-01-26 豪威科技(上海)有限公司 无线接收机及其使用方法
EP3761727B1 (en) * 2015-07-27 2022-06-08 Huawei Technologies Co., Ltd. Information transmission methods and devices
US10181970B2 (en) 2016-03-31 2019-01-15 Nxp B.V. Method and system for controlling an amplifier of a communications device
EP3226426B1 (en) * 2016-03-31 2019-12-04 Nxp B.V. Method and system for controlling an amplifier of a communications device
US9814005B2 (en) 2016-03-31 2017-11-07 Nxp B.V. Method and system for processing a radio frequency (RF) signal
JP2018098566A (ja) 2016-12-09 2018-06-21 日立金属株式会社 通信用ケーブルモジュールおよび伝送損失補償回路
DE102017200121A1 (de) 2017-01-05 2018-07-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wafer Level Package mit zumindest einem integrierten Antennenelement
DE102017200122B4 (de) 2017-01-05 2020-07-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wafer Level Package mit integrierten Antennen und Mittel zum Schirmen, System dieses umfassend und Verfahren zu dessen Herstellung
WO2019034019A1 (en) 2017-08-15 2019-02-21 Telefonaktiebolaget Lm Ericsson (Publ) DEVICE AND METHOD FOR DOWNLINK GAIN COMPENSATION AND RADIO UNIT COMPRISING THE DEVICE
RU2678166C1 (ru) * 2017-12-21 2019-01-23 Андрей Владимирович Акишин Способ повышения устойчивости работы сверхрегенеративного приемника
CN112074729B (zh) 2018-01-05 2024-05-07 汉席克卡德应用研究协会 气体传感器以及用于运行气体传感器的方法
EP3926335B1 (de) 2018-01-05 2022-10-26 Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. Auswerteanordnung für einen thermischen gassensor, verfahren und computerprogramm
CN108768425B (zh) * 2018-07-02 2021-03-30 成都国恒空间技术工程有限公司 一种自动增益控制agc的动态调整方法
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
EP3888256A4 (en) 2018-11-27 2022-08-31 Xcom Labs, Inc. NON-COHERENT COOPERATIVE MIMO COMMUNICATIONS
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10756782B1 (en) 2019-04-26 2020-08-25 XCOM Labs, Inc. Uplink active set management for multiple-input multiple-output communications
US11032841B2 (en) 2019-04-26 2021-06-08 XCOM Labs, Inc. Downlink active set management for multiple-input multiple-output communications
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
CN113475151B (zh) * 2019-08-16 2024-08-20 联发科技股份有限公司 执行小区激活流程的方法及其装置
CN110912570B (zh) * 2019-11-18 2021-07-06 展讯通信(上海)有限公司 一种低噪声放大器的调档装置、方法、终端及网元设备
WO2021098946A1 (en) * 2019-11-18 2021-05-27 Telefonaktiebolaget Lm Ericsson (Publ) Signal block reception with automatic gain control adjustment
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
US12088499B2 (en) 2020-04-15 2024-09-10 Virewirx, Inc. System and method for reducing data packet processing false alarms
CN115699605A (zh) 2020-05-26 2023-02-03 艾斯康实验室公司 干扰感知波束成形
EP4229846A4 (en) 2020-10-19 2024-12-11 Xcom Labs, Inc. REFERENCE SIGNAL FOR WIRELESS COMMUNICATION SYSTEMS
WO2022093988A1 (en) 2020-10-30 2022-05-05 XCOM Labs, Inc. Clustering and/or rate selection in multiple-input multiple-output communication systems
KR20230118111A (ko) 2020-12-16 2023-08-10 엑스콤 랩스 인코퍼레이티드 쿼시-옴니 및 지향성 빔을 갖는 무선 통신
WO2022241436A1 (en) 2021-05-14 2022-11-17 XCOM Labs, Inc. Scrambling identifiers for wireless communication systems
CN114204949B (zh) * 2021-11-30 2024-01-30 西南电子技术研究所(中国电子科技集团公司第十研究所) 大动态快速数字agc控制方法
US11916851B2 (en) * 2021-12-22 2024-02-27 Qualcomm Incorporated Dynamic automatic gain control (AGC) reference signaling
CN114945210B (zh) * 2022-05-06 2024-02-09 广州芯之联科技有限公司 一种射频信号增益控制方法、系统、装置及介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274759B (en) * 1993-02-02 1996-11-13 Nokia Mobile Phones Ltd Correction of D.C offset in received and demodulated radio signals
TW294867B (pt) 1994-12-23 1997-01-01 Qualcomm Inc
US5646857A (en) 1995-03-31 1997-07-08 Trimble Navigation Limited Use of an altitude sensor to augment availability of GPS location fixes
SE9900289D0 (sv) 1999-01-27 1999-01-27 Ericsson Telefon Ab L M DC estimate method for a homodyne receiver
US7170996B1 (en) * 1999-10-18 2007-01-30 Qualcomm Incorporated Random number generation for encrypting cellular communications
JP2001180835A (ja) 1999-12-27 2001-07-03 Toshiba Tec Corp プリンタ装置
US6327313B1 (en) * 1999-12-29 2001-12-04 Motorola, Inc. Method and apparatus for DC offset correction
US7076225B2 (en) * 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
US6985711B2 (en) * 2002-04-09 2006-01-10 Qualcomm, Incorporated Direct current offset cancellation for mobile station modems using direct conversion
US7212797B2 (en) 2002-04-26 2007-05-01 Qualcomm Incorporated DC removal techniques for wireless networking
US7319852B2 (en) * 2002-08-29 2008-01-15 Qualcomm, Incorporated Apparatus and method for DC offset compensation in a direct conversion receiver
JP2005130203A (ja) 2003-10-23 2005-05-19 Sony Corp 受信装置
US7702046B2 (en) 2006-04-03 2010-04-20 Qualcomm Incorporated Method and system for automatic gain control during signal acquisition
US8295371B2 (en) 2006-07-14 2012-10-23 Qualcomm Incorporated Multi-carrier receiver for wireless communication

Also Published As

Publication number Publication date
TW201342817A (zh) 2013-10-16
TWI520507B (zh) 2016-02-01
CA2718235C (en) 2016-07-19
TW200947887A (en) 2009-11-16
CN101981880B (zh) 2014-04-09
CN101981880A (zh) 2011-02-23
JP2013038788A (ja) 2013-02-21
KR20100126589A (ko) 2010-12-01
TWI415400B (zh) 2013-11-11
CA2718235A1 (en) 2009-10-08
US8331892B2 (en) 2012-12-11
WO2009123830A1 (en) 2009-10-08
KR101141003B1 (ko) 2012-05-22
JP2011521498A (ja) 2011-07-21
RU2010144272A (ru) 2012-05-10
RU2458457C2 (ru) 2012-08-10
JP5456861B2 (ja) 2014-04-02
US20100184397A1 (en) 2010-07-22
EP2274885A1 (en) 2011-01-19

Similar Documents

Publication Publication Date Title
BRPI0909371A2 (pt) método e sistema para compensação de cd e agc
BRPI0906215A2 (pt) método e sistema para inserção de conteúdo segmentado
BRPI0916450A2 (pt) método, e sistema
BRPI0918065A2 (pt) método e sistema para modificação de lista de reprodução dinâmica.
BR112012012231A2 (pt) método e sistema
BR112012002301A2 (pt) método e sistema
BRPI0917782A2 (pt) sistema e método
BRPI0814085A2 (pt) Sistema, e, método
BRPI1010203A2 (pt) sistema e método
BRPI0815101A2 (pt) Método, e, sistema
BRPI0913786A2 (pt) sistema de detecção e método de detecção
BRPI1006398A2 (pt) método e sistema
BRPI0815721A2 (pt) sistema e método para detecção de atividade de ruído
BRPI0814144A2 (pt) Sistema e método para calibração automática
BRPI0913145A2 (pt) método para identificar automaticamente malware e sistema para identificar automaticamente malware
BRPI0919650A2 (pt) método e sistema para aquecer uma formação de subsuperfície
BRPI1016218A2 (pt) sistema, e, método
BRPI1013630A2 (pt) sistema, e método
BRPI1014894A2 (pt) método, e sistema
BRPI0918084A2 (pt) método, e, sistema
BRPI0915309A2 (pt) método e sistema para mineração de solução
BRPI0822675A2 (pt) Sistema de display e método
BRPI0811722A2 (pt) Método, e sistema
BRPI0922847A2 (pt) sistema e método de posicionamento
BRPI0810825A2 (pt) Sistema e método de distribuição

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]