BR9806336A - Detecção de interferência para sistemas de espectro disperso. - Google Patents
Detecção de interferência para sistemas de espectro disperso.Info
- Publication number
- BR9806336A BR9806336A BR9806336-7A BR9806336A BR9806336A BR 9806336 A BR9806336 A BR 9806336A BR 9806336 A BR9806336 A BR 9806336A BR 9806336 A BR9806336 A BR 9806336A
- Authority
- BR
- Brazil
- Prior art keywords
- interference
- range
- spectrum
- entire
- dispersed spectrum
- Prior art date
Links
Classifications
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/71—Interference-related aspects the interference being narrowband interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/22—Countermeasures against jamming including jamming detection and monitoring
-
- 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
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/16—Jamming or countermeasure used for a particular application for telephony
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
<B>"DETECçãO DE INTEFERêNCIA PARA SISTEMAS DE ESPECTRO DISPERSO"<D>. Em sistema de espectro disperso, como sistemas baseados em CDMA, a presença mesmo de interferência de baixa estreita, como aquela causada por interferência intencional em uma frequência específica, pode afetuar adversamente todos os usuários atuais no sistema. De acordo com a presente invenção, a interferência é detectada e caracaterizada pelo acúmulo de estatísticas para cada espectro de energia no sistema (por exemplo), tanto para a faixa de enlace direto como a faixa de enlace inverso em um sistema de telecomunicações). Em particular, uma vez que um espectro disperso é idealmente plano através de toda a faixa de frequência, a interferência de faixa estreita pode ser detectada com base em um desvio significativo entre a intensidade de sinal em qualquer frequência e o nível de sinal médio através de toda a faixa. Similarmente, a interferência de faixa larga pode ser detectada com base no nível de variância sobre toda a faixa de frequência. Em uma modalidade preferida, um par de receptores são designados para realizar processamento de detecção de interferência de fundo tanto para o enlace direto como para enlace inverso.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/006,983 US6130907A (en) | 1998-01-14 | 1998-01-14 | Interference detection for spread spectrum systems |
Publications (2)
Publication Number | Publication Date |
---|---|
BR9806336A true BR9806336A (pt) | 1999-12-21 |
BR9806336B1 BR9806336B1 (pt) | 2013-04-24 |
Family
ID=21723583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI9806336-7A BR9806336B1 (pt) | 1998-01-14 | 1998-12-30 | detecÇço de interferÊncia para sistemas de espectro disperso. |
Country Status (9)
Country | Link |
---|---|
US (1) | US6130907A (pt) |
EP (1) | EP0930724B1 (pt) |
JP (1) | JP3400371B2 (pt) |
KR (1) | KR100346323B1 (pt) |
CN (1) | CN1149401C (pt) |
AU (1) | AU743774B2 (pt) |
BR (1) | BR9806336B1 (pt) |
CA (1) | CA2256965C (pt) |
DE (1) | DE69932368T2 (pt) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
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US6807405B1 (en) | 1999-04-28 | 2004-10-19 | Isco International, Inc. | Method and a device for maintaining the performance quality of a code-division multiple access system in the presence of narrow band interference |
WO2002087106A1 (en) * | 2001-04-24 | 2002-10-31 | Nokia Corporation | Method and device for estimating sir of a signal |
SE522544C2 (sv) * | 2001-05-30 | 2004-02-17 | Ericsson Telefon Ab L M | Förfarande för val av bärvåg |
US6714605B2 (en) * | 2002-04-22 | 2004-03-30 | Cognio, Inc. | System and method for real-time spectrum analysis in a communication device |
US7292656B2 (en) * | 2002-04-22 | 2007-11-06 | Cognio, Inc. | Signal pulse detection scheme for use in real-time spectrum analysis |
US7254191B2 (en) * | 2002-04-22 | 2007-08-07 | Cognio, Inc. | System and method for real-time spectrum analysis in a radio device |
US7231559B2 (en) * | 2003-12-17 | 2007-06-12 | Sony Corporation | Outage predictor for communication link |
WO2006009955A2 (en) * | 2004-06-23 | 2006-01-26 | Cognio, Inc | Self-calibrated path loss position estimation process, device and system |
US7058530B1 (en) | 2004-08-13 | 2006-06-06 | Research Electronics International, Llc | Comparative spectrum trace method and apparatus for detecting transmitters |
WO2006023575A2 (en) * | 2004-08-19 | 2006-03-02 | Cognio, Inc. | System and method for monitoring and enforcing a restricted wireless zone |
WO2006029071A2 (en) * | 2004-09-03 | 2006-03-16 | Southwest Research Institute | Packed-bed radial-flow non-thermal plasma reactor |
EP2334002A1 (en) * | 2004-10-13 | 2011-06-15 | McMASTER UNIVERSITY | Operating environment analysis techniques for wireless communication systems |
US7466960B2 (en) * | 2005-02-08 | 2008-12-16 | Cisco Technology, Inc. | Cognitive spectrum analysis and information display techniques |
RU2365042C2 (ru) * | 2005-03-29 | 2009-08-20 | ЗТЕ Корпоратион | Способ и устройство устранения узкополосных радиопомех в широкополосной системе |
US20060270371A1 (en) * | 2005-05-31 | 2006-11-30 | Sugar Gary L | Tracking short-term maximum power spectrum density for improved visibility of low duty cycle signals |
WO2007122188A1 (en) * | 2006-04-20 | 2007-11-01 | Wireless Audio I.P. B.V. | System and method for interference identification and frequency allocation |
WO2007134108A2 (en) * | 2006-05-09 | 2007-11-22 | Cognio, Inc. | System and method for identifying wireless devices using pulse fingerprinting and sequence analysis |
US8031807B2 (en) * | 2006-11-10 | 2011-10-04 | Qualcomm, Incorporated | Systems and methods for detecting the presence of a transmission signal in a wireless channel |
US7904263B2 (en) * | 2008-05-30 | 2011-03-08 | The United States Of America As Represented By The Secretary Of The Air Force | Method for automatically detecting and characterizing spectral activity |
US7929508B1 (en) * | 2008-06-11 | 2011-04-19 | Atheros Communications, Inc. | Radio frequency signal analysis and classification using time-frequency information |
US8559865B2 (en) * | 2008-07-31 | 2013-10-15 | Qualcomm Incorporated | Method and apparatus for providing jammer detection in a receiver |
US7961040B2 (en) * | 2008-08-22 | 2011-06-14 | Omnivision International Holding, Ltd. | Accuracy on-chip clock generator for multi-clock driven single chip solution |
US8385483B2 (en) | 2008-11-11 | 2013-02-26 | Isco International, Llc | Self-adaptive digital RF bandpass and bandstop filter architecture |
US9048919B2 (en) | 2008-11-11 | 2015-06-02 | Isco International Llc | Method and apparatus for an adaptive filter architecture |
DE102008062696A1 (de) * | 2008-12-17 | 2010-06-24 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zur Messdatenverarbeitung und Messgerät |
CN101631102B (zh) * | 2009-04-10 | 2011-09-21 | 北京理工大学 | 一种跳频系统干扰样式识别方法 |
US8971441B2 (en) | 2009-06-08 | 2015-03-03 | Lawrence Livermore National Security, Llc | Transmit-reference methods in software defined radio platforms for communication in harsh propagation environments and systems thereof |
JP5413964B2 (ja) * | 2009-09-14 | 2014-02-12 | パナソニック株式会社 | 無線基地局装置、無線端末装置および無線通信方法 |
CN102201875A (zh) * | 2010-03-23 | 2011-09-28 | 卓胜微电子(上海)有限公司 | 用于无线通信接收系统的窄带干扰检测的方法 |
CN102739345B (zh) * | 2011-04-13 | 2014-11-05 | 上海明波通信技术股份有限公司 | 探测帧的窄带干扰检测与bch解码结合应用的装置及方法 |
US9319916B2 (en) | 2013-03-15 | 2016-04-19 | Isco International, Llc | Method and appartus for signal interference processing |
DE102013222211B4 (de) | 2013-10-31 | 2016-02-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Detektion von Signalinterferenzen |
US9429647B2 (en) * | 2013-12-04 | 2016-08-30 | Aruba Networks, Inc. | Classifying wireless signals |
US9794888B2 (en) | 2014-05-05 | 2017-10-17 | Isco International, Llc | Method and apparatus for increasing performance of a communication link of a communication node |
EP3651386B1 (en) | 2015-05-04 | 2023-08-23 | ISCO International, LLC | Method and apparatus for increasing the performance of communication paths for communication nodes |
CA3024175A1 (en) | 2016-06-01 | 2017-12-07 | Isco International, Llc | Method and apparatus for performing signal conditioning to mitigate interference detected in a communication system |
US11096181B2 (en) * | 2017-01-30 | 2021-08-17 | Qualcomm Incorporated | Monitoring interference level to selectively control usage of a contention-based protocol |
US10298279B2 (en) | 2017-04-05 | 2019-05-21 | Isco International, Llc | Method and apparatus for increasing performance of communication paths for communication nodes |
US10812121B2 (en) | 2017-08-09 | 2020-10-20 | Isco International, Llc | Method and apparatus for detecting and analyzing passive intermodulation interference in a communication system |
US10284313B2 (en) | 2017-08-09 | 2019-05-07 | Isco International, Llc | Method and apparatus for monitoring, detecting, testing, diagnosing and/or mitigating interference in a communication system |
DE102017216825A1 (de) * | 2017-09-22 | 2019-03-28 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Verarbeiten eines von einem akustischen Sensor empfangenen Echosignals |
WO2022205199A1 (zh) * | 2021-03-31 | 2022-10-06 | 华为技术有限公司 | 一种干扰处理方法和装置 |
US11671134B2 (en) * | 2021-09-15 | 2023-06-06 | Apple Inc. | Wireless circuitry desensitization detection |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4118666A (en) * | 1977-03-04 | 1978-10-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Automatic communication signal monitoring system |
CA1165890A (en) * | 1982-03-18 | 1984-04-17 | Trevor W. Tucker | Sampling spectrum analyzer |
US5175880A (en) * | 1988-11-03 | 1992-12-29 | Rolls-Royce Plc | Signal analysis |
US5144642A (en) * | 1990-06-07 | 1992-09-01 | Stanford Telecommunications, Inc | Interference detection and characterization method and apparatus |
WO1993015569A1 (en) * | 1992-01-28 | 1993-08-05 | Comarco, Incorporated | Automatic cellular telephone control system |
US5451839A (en) * | 1993-01-12 | 1995-09-19 | Rappaport; Theodore S. | Portable real time cellular telephone and pager network system monitor |
US6128473A (en) * | 1997-12-22 | 2000-10-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for frequency plan revision within a cellular telephone system using downlink interference estimates |
-
1998
- 1998-01-14 US US09/006,983 patent/US6130907A/en not_active Expired - Lifetime
- 1998-12-23 CA CA002256965A patent/CA2256965C/en not_active Expired - Fee Related
- 1998-12-30 BR BRPI9806336-7A patent/BR9806336B1/pt not_active IP Right Cessation
-
1999
- 1999-01-05 EP EP99300044A patent/EP0930724B1/en not_active Expired - Lifetime
- 1999-01-05 DE DE69932368T patent/DE69932368T2/de not_active Expired - Lifetime
- 1999-01-12 CN CNB991010574A patent/CN1149401C/zh not_active Expired - Fee Related
- 1999-01-13 KR KR1019990000670A patent/KR100346323B1/ko not_active IP Right Cessation
- 1999-01-13 AU AU11311/99A patent/AU743774B2/en not_active Ceased
- 1999-01-14 JP JP00711999A patent/JP3400371B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0930724B1 (en) | 2006-07-19 |
EP0930724A3 (en) | 2003-08-06 |
EP0930724A2 (en) | 1999-07-21 |
JP3400371B2 (ja) | 2003-04-28 |
BR9806336B1 (pt) | 2013-04-24 |
DE69932368T2 (de) | 2007-07-26 |
AU1131199A (en) | 1999-08-05 |
JPH11298442A (ja) | 1999-10-29 |
US6130907A (en) | 2000-10-10 |
KR100346323B1 (ko) | 2002-07-26 |
KR19990067876A (ko) | 1999-08-25 |
CA2256965C (en) | 2002-04-02 |
DE69932368D1 (de) | 2006-08-31 |
CN1224167A (zh) | 1999-07-28 |
CA2256965A1 (en) | 1999-07-14 |
AU743774B2 (en) | 2002-02-07 |
CN1149401C (zh) | 2004-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B15K | Others concerning applications: alteration of classification |
Free format text: ALTERADA A CLASSIFICACAO DE H04Q 7/34 PARA INT.CL.2010.01 H04W 24/04 Ipc: H04W 24/04 (2010.01) |
|
B15K | Others concerning applications: alteration of classification |
Free format text: ALTERADA A CLASSIFICACAO DE H04Q 7/34 PARA INT.CL.2010.01 H04W 24/04 Ipc: H04W 24/04 (2010.01) |
|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 24/04/2013, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time | ||
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |