WO2011011558A3 - Procédés et appareil de sondage spectral de caractéristiques de signal dans un canal sans fil - Google Patents

Procédés et appareil de sondage spectral de caractéristiques de signal dans un canal sans fil Download PDF

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Publication number
WO2011011558A3
WO2011011558A3 PCT/US2010/042816 US2010042816W WO2011011558A3 WO 2011011558 A3 WO2011011558 A3 WO 2011011558A3 US 2010042816 W US2010042816 W US 2010042816W WO 2011011558 A3 WO2011011558 A3 WO 2011011558A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
signal features
wireless channel
signal
spectrum sensing
Prior art date
Application number
PCT/US2010/042816
Other languages
English (en)
Other versions
WO2011011558A2 (fr
Inventor
Stephen J. Shellhammer
Original Assignee
Qualcomm Incorporated
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 Incorporated filed Critical Qualcomm Incorporated
Priority to EP10738089.1A priority Critical patent/EP2457339B1/fr
Priority to KR1020127004645A priority patent/KR101378462B1/ko
Priority to CN201080033870.9A priority patent/CN102474361B/zh
Priority to JP2012521767A priority patent/JP5722321B2/ja
Publication of WO2011011558A2 publication Critical patent/WO2011011558A2/fr
Publication of WO2011011558A3 publication Critical patent/WO2011011558A3/fr

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/26Monitoring; Testing of receivers using historical data, averaging values or statistics
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/382Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Transmission System (AREA)

Abstract

L'invention concerne des procédés et un appareil pour détecter des caractéristiques d'un signal dans un système de communication sans fil. Les procédés et appareil selon l'invention détectent des caractéristiques d'un signal par la détermination d'un nombre d'estimations de densité spectrale, où chaque estimation dérive de la réception du signal par une antenne respective dans un système doté de multiples antennes de détection. Les estimations de densité spectrale sont ensuite combinées, et les caractéristiques de signal sont détectées sur la base de la combinaison des estimations de densité spectrale.
PCT/US2010/042816 2009-07-22 2010-07-21 Procédés et appareil de sondage spectral de caractéristiques de signal dans un canal sans fil WO2011011558A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10738089.1A EP2457339B1 (fr) 2009-07-22 2010-07-21 Procédés et appareil de sondage spectral de caractéristiques de signal dans un canal sans fil
KR1020127004645A KR101378462B1 (ko) 2009-07-22 2010-07-21 무선 채널에서의 신호 피쳐들의 스펙트럼 감지를 위한 방법들 및 장치
CN201080033870.9A CN102474361B (zh) 2009-07-22 2010-07-21 用于对无线信道中的信号特征作频谱感测的方法和装置
JP2012521767A JP5722321B2 (ja) 2009-07-22 2010-07-21 無線チャネルにおける信号特徴のスペクトル感知のための方法および装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22770009P 2009-07-22 2009-07-22
US61/227,700 2009-07-22
US12/618,533 US8463195B2 (en) 2009-07-22 2009-11-13 Methods and apparatus for spectrum sensing of signal features in a wireless channel
US12/618,533 2009-11-13

Publications (2)

Publication Number Publication Date
WO2011011558A2 WO2011011558A2 (fr) 2011-01-27
WO2011011558A3 true WO2011011558A3 (fr) 2011-06-16

Family

ID=43497765

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/042816 WO2011011558A2 (fr) 2009-07-22 2010-07-21 Procédés et appareil de sondage spectral de caractéristiques de signal dans un canal sans fil

Country Status (7)

Country Link
US (1) US8463195B2 (fr)
EP (1) EP2457339B1 (fr)
JP (2) JP5722321B2 (fr)
KR (1) KR101378462B1 (fr)
CN (1) CN102474361B (fr)
TW (1) TW201110589A (fr)
WO (1) WO2011011558A2 (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007036798A2 (fr) * 2005-09-30 2007-04-05 Nortel Networks Limited Systeme de communication mimo
US8373759B2 (en) * 2009-08-18 2013-02-12 Wi-Lan, Inc. White space spectrum sensor for television band devices
CA2693012C (fr) * 2009-09-18 2015-06-23 Her Majesty The Queen In Right Of Canada As Represented By The Ministeof National Defence Detection de signal dans des environnements a evanouissements
KR101524391B1 (ko) * 2011-01-28 2015-05-29 엠파이어 테크놀로지 디벨롭먼트 엘엘씨 Cdma 수신기 코딩을 통한 인지 무선 스펙트럼 감지
CN102571237B (zh) * 2011-12-31 2014-08-13 中国科学技术大学 一种基于周期图的无线信号检测方法
US8744390B2 (en) * 2012-03-29 2014-06-03 Adc Telecommunications, Inc. Systems and methods for adjusting system tests based on detected interference
US9379801B2 (en) 2012-06-15 2016-06-28 Lg Electronics Inc. Method and device for transmitting and receiving multi-input multi-output (MIMO) signal in wireless communication system in which plural communication systems are present
FR2993119B1 (fr) * 2012-07-05 2014-08-08 Sigfox Wireless Procede de recherche d'un signal utile dans une bande de multiplexage
EP2717528A1 (fr) * 2012-10-03 2014-04-09 Nxp B.V. Processeur destiné à un circuit radio
US10122479B2 (en) 2017-01-23 2018-11-06 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US10219163B2 (en) 2013-03-15 2019-02-26 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US9288683B2 (en) 2013-03-15 2016-03-15 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10237770B2 (en) 2013-03-15 2019-03-19 DGS Global Systems, Inc. Systems, methods, and devices having databases and automated reports for electronic spectrum management
US8798548B1 (en) 2013-03-15 2014-08-05 DGS Global Systems, Inc. Systems, methods, and devices having databases for electronic spectrum management
US8805292B1 (en) 2013-03-15 2014-08-12 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying signal-emitting devices
US10257729B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices having databases for electronic spectrum management
CN108738067B (zh) * 2013-03-15 2021-08-13 索尼公司 无线电通信系统中的设备和方法及计算机存储介质
US10299149B2 (en) 2013-03-15 2019-05-21 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10244504B2 (en) 2013-03-15 2019-03-26 DGS Global Systems, Inc. Systems, methods, and devices for geolocation with deployable large scale arrays
US11646918B2 (en) 2013-03-15 2023-05-09 Digital Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US10271233B2 (en) 2013-03-15 2019-04-23 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US10257727B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems methods, and devices having databases and automated reports for electronic spectrum management
US10257728B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10231206B2 (en) 2013-03-15 2019-03-12 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying signal-emitting devices
US8750156B1 (en) 2013-03-15 2014-06-10 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US8787836B1 (en) 2013-03-15 2014-07-22 DGS Global Systems, Inc. Systems, methods, and devices having databases and automated reports for electronic spectrum management
US10354145B2 (en) * 2014-09-11 2019-07-16 Carnegie Mellon University Associating a user identity with a mobile device identity
WO2018052349A1 (fr) * 2016-09-15 2018-03-22 Telefonaktiebolaget Lm Ericsson (Publ) Procédés et systèmes de sélection autonome de ressources d'émission par un dispositif
US10469664B2 (en) * 2016-09-21 2019-11-05 Genesys Telecommunications Laboratories, Inc. System and method for managing multi-channel engagements
MX2019008607A (es) 2017-01-23 2019-11-11 Digital Global Systems Inc Sistemas, métodos y dispositivos para la detección automática de señal con extracción temporal de funciones dentro de un espectro.
US10498951B2 (en) 2017-01-23 2019-12-03 Digital Global Systems, Inc. Systems, methods, and devices for unmanned vehicle detection
US10700794B2 (en) 2017-01-23 2020-06-30 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within an electromagnetic spectrum
US10529241B2 (en) 2017-01-23 2020-01-07 Digital Global Systems, Inc. Unmanned vehicle recognition and threat management
US10459020B2 (en) 2017-01-23 2019-10-29 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within a spectrum
US10135554B1 (en) 2017-06-01 2018-11-20 Apple Inc. Robust super-resolution processing for wireless ranging
WO2019161076A1 (fr) 2018-02-19 2019-08-22 Digital Global Systems, Inc. Systèmes, procédés et dispositifs de détection de véhicule sans pilote et de gestion de menace
US10943461B2 (en) 2018-08-24 2021-03-09 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008061044A2 (fr) * 2006-11-10 2008-05-22 Qualcomm Incorporated Systèmes et procédés pour détecter la présence d'un signal de transmission dans un canal sans fil

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272446A (en) * 1991-11-29 1993-12-21 Comsat Digitally implemented fast frequency estimator/demodulator for low bit rate maritime and mobile data communications without the use of an acquisition preamble
US5604730A (en) * 1994-07-25 1997-02-18 Qualcomm Incorporated Remote transmitter power control in a contention based multiple access system
SE513892C2 (sv) 1995-06-21 2000-11-20 Ericsson Telefon Ab L M Spektral effekttäthetsestimering av talsignal Metod och anordning med LPC-analys
US6518921B1 (en) 1997-04-22 2003-02-11 Ericsson Inc. Cellular positioning system that compensates for received signal delays in positioning radio receivers
US6498785B1 (en) 1998-10-02 2002-12-24 Nokia Mobile Phones Ltd Method and apparatus for power control on a common channel in a telecommunication system
US20030105037A1 (en) * 2001-10-06 2003-06-05 Isis Pharmaceuticals Inc. Antisense modulation of inhibitor-kappa B kinase-gamma expression
CA2260336A1 (fr) 1999-02-15 2000-08-15 Robert Inkol Systeme de reconnaissance de la modulation
FR2790342B1 (fr) * 1999-02-26 2001-04-13 France Telecom Procede et systeme de traitement d'antenne
EP1139606A1 (fr) * 2000-03-28 2001-10-04 Lucent Technologies Inc. Communication sans fil dans un réseau local avec des seuils variables pour les niveaux de signal
FR2808391B1 (fr) * 2000-04-28 2002-06-07 France Telecom Systeme de reception pour antenne multicapteur
EP1156623B1 (fr) * 2000-05-19 2006-03-08 Lucent Technologies Inc. Réseau local sans fil avec équilibrage de charge
US6879627B1 (en) * 2000-06-01 2005-04-12 Shiron Satellite Communications (1996) Ltd. Variable rate continuous mode satellite modem
US7480278B2 (en) * 2001-05-04 2009-01-20 Nokia Corporation Admission control with directional antenna
US7574230B1 (en) * 2001-05-31 2009-08-11 Sprint Spectrum L.P. Remote base station with transmit power control
RU2252429C2 (ru) 2001-06-07 2005-05-20 Корпорация "Самсунг Электроникс" Способ определения местоположения мобильной станции
JP3903814B2 (ja) * 2002-03-08 2007-04-11 三菱電機株式会社 電波監視装置
TW595140B (en) * 2002-04-22 2004-06-21 Cognio Inc System and method for spectrum management of a shared frequency band
KR100673084B1 (ko) 2002-12-10 2007-01-22 데이터 플로우 시스템즈 인코포레이션 스펙트럼 재사용 트랜시버를 사용하는 라디오 통신 시스템
FR2853488B1 (fr) * 2003-04-01 2005-07-15 Radiotelephone Sfr Procede de calcul et de visualisation des interferences mutuelles dans le sens descendant dans un reseau de radiotelephonie cellulaire a acces de type w-cdma
US7171165B2 (en) * 2003-07-24 2007-01-30 Lucent Technologies Inc. Method for determining a transmission rate on the reverse common signaling channel of a wireless system
US7480516B1 (en) 2003-10-31 2009-01-20 Nortel Networks Limited Method and apparatus of forward link and reverse link power control in a cellular wireless communication system
US7164740B2 (en) * 2003-11-21 2007-01-16 Interdigital Technology Corporation Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver
US7443821B2 (en) * 2004-01-08 2008-10-28 Interdigital Technology Corporation Method for clear channel assessment optimization in a wireless local area network
US7668561B2 (en) 2004-02-27 2010-02-23 Qualcomm Incorporated Apparatus and method for controlling reverse link interference among access terminals in wireless communications
KR100703322B1 (ko) * 2004-05-07 2007-04-03 삼성전자주식회사 배열 안테나 시스템을 위한 빔 형성 장치 및 방법
JP4447372B2 (ja) * 2004-05-13 2010-04-07 株式会社エヌ・ティ・ティ・ドコモ 無線通信システム、無線通信装置、無線受信装置、無線通信方法及びチャネル推定方法
KR100800795B1 (ko) * 2004-05-31 2008-02-04 삼성전자주식회사 통신 시스템에서 상향 링크 응답 정보 송/수신 방법 및 장치
US7492828B2 (en) 2004-06-18 2009-02-17 Qualcomm Incorporated Time synchronization using spectral estimation in a communication system
US7218359B2 (en) 2004-07-26 2007-05-15 Realtek Semiconductor Corp. Digital television receiver and method of recovering incoming digital television signal
US8032086B2 (en) * 2004-09-28 2011-10-04 Intel Corporation Method and apparatus for managing communications
JP2006173926A (ja) * 2004-12-14 2006-06-29 Mitsubishi Electric Corp 周波数誤差推定装置および受信機
GB2423675B (en) * 2005-02-28 2009-08-19 King S College London Diversity transmitter and method
JP2009503955A (ja) * 2005-07-29 2009-01-29 ザ ガヴァナーズ オヴ ザ ユニヴァーシティ オヴ アルバータ アンテナ選択装置および方法
WO2007103108A2 (fr) * 2006-03-03 2007-09-13 Nokia Corporation Systèmes et procédés de mise en forme adaptative de faisceaux multiples pour systèmes de communication
KR101088191B1 (ko) * 2006-10-31 2011-11-30 콸콤 인코포레이티드 역방향 링크 전송들을 위한 동적 simo, su-simo 및 mu-mimo 동작에 대한 통합 설계 및 중앙집중형 스케줄링
US7684320B1 (en) 2006-12-22 2010-03-23 Narus, Inc. Method for real time network traffic classification
UA95507C2 (ru) * 2007-01-04 2011-08-10 Квелкомм Инкорпорейтед Способ и устройство для распределенного выявления спектра для беспроводной связи
US7610036B2 (en) * 2007-01-08 2009-10-27 Mitsubishi Electric Research Laboratories, Inc. Space-time-frequency sensing of RF spectrum in cognitive radios
EP2181517A4 (fr) * 2007-03-30 2017-04-19 Telefonaktiebolaget LM Ericsson (publ) Procédé et dispositif de suppression des interférences dans un terminal utilisateur
WO2009039211A1 (fr) * 2007-09-17 2009-03-26 Qualcomm Incorporated Procédé et appareil permettant de réduire l'espace de fréquence de la recherche de fréquence
US8027690B2 (en) * 2008-08-05 2011-09-27 Qualcomm Incorporated Methods and apparatus for sensing the presence of a transmission signal in a wireless channel
EP2319260A2 (fr) * 2008-08-19 2011-05-11 Shared Spectrum Company Procédé et système d'accès à un spectre dynamique à l'aide de détecteurs de spécialité et d'une mise en réseau améliorée

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008061044A2 (fr) * 2006-11-10 2008-05-22 Qualcomm Incorporated Systèmes et procédés pour détecter la présence d'un signal de transmission dans un canal sans fil

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CABRIC D ET AL: "Implementation issues in spectrum sensing for cognitive radios", SIGNALS, SYSTEMS AND COMPUTERS, 2004. CONFERENCE RECORD OF THE THIRTY- EIGHTH ASILOMAR CONFERENCE ON PACIFIC GROVE, CA, USA NOV. 7-10, 2004, PISCATAWAY, NJ, USA,IEEE, vol. 1, 7 November 2004 (2004-11-07), pages 772 - 776, XP010781056, ISBN: 978-0-7803-8622-8, DOI: DOI:10.1109/ACSSC.2004.1399240 *
SHELLHAMMER S J: "Spectrum sensing in IEEE802.22", INTERNET CITATION, 9 June 2008 (2008-06-09), pages 1 - 6, XP002557132, Retrieved from the Internet <URL:http://www.eurasip.org/Proceedings/Ext/CIP2008/papers/1569094657.pdf> [retrieved on 20091123] *

Also Published As

Publication number Publication date
JP5837104B2 (ja) 2015-12-24
JP2014116955A (ja) 2014-06-26
EP2457339A2 (fr) 2012-05-30
US20110021167A1 (en) 2011-01-27
TW201110589A (en) 2011-03-16
CN102474361A (zh) 2012-05-23
KR101378462B1 (ko) 2014-04-02
US8463195B2 (en) 2013-06-11
EP2457339B1 (fr) 2019-07-10
JP5722321B2 (ja) 2015-05-20
CN102474361B (zh) 2015-03-25
JP2013500628A (ja) 2013-01-07
WO2011011558A2 (fr) 2011-01-27
KR20120047967A (ko) 2012-05-14

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