BRPI0909371A2 - método e sistema para compensação de cd e agc - Google Patents
método e sistema para compensação de cd e agcInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3078—Circuits generating control signals for digitally modulated signals
-
- 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
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)
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)
| 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)
| 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 |
-
2009
- 2009-03-05 US US12/398,285 patent/US8331892B2/en not_active Expired - Fee Related
- 2009-03-09 CN CN200980111599.3A patent/CN101981880B/zh not_active Expired - Fee Related
- 2009-03-09 BR BRPI0909371A patent/BRPI0909371A2/pt not_active Application Discontinuation
- 2009-03-09 EP EP09726787A patent/EP2274885A1/en not_active Withdrawn
- 2009-03-09 KR KR1020107024452A patent/KR101141003B1/ko not_active Expired - Fee Related
- 2009-03-09 RU RU2010144272/08A patent/RU2458457C2/ru not_active IP Right Cessation
- 2009-03-09 WO PCT/US2009/036585 patent/WO2009123830A1/en not_active Ceased
- 2009-03-09 JP JP2011501883A patent/JP2011521498A/ja active Pending
- 2009-03-09 CA CA2718235A patent/CA2718235C/en not_active Expired - Fee Related
- 2009-03-18 TW TW102123024A patent/TWI520507B/zh not_active IP Right Cessation
- 2009-03-18 TW TW098108790A patent/TWI415400B/zh not_active IP Right Cessation
-
2012
- 2012-08-29 JP JP2012189092A patent/JP5456861B2/ja not_active Expired - Fee Related
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 |
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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] |