SG11201700222UA - Tomographic loss factor estimation - Google Patents

Tomographic loss factor estimation

Info

Publication number
SG11201700222UA
SG11201700222UA SG11201700222UA SG11201700222UA SG11201700222UA SG 11201700222U A SG11201700222U A SG 11201700222UA SG 11201700222U A SG11201700222U A SG 11201700222UA SG 11201700222U A SG11201700222U A SG 11201700222UA SG 11201700222U A SG11201700222U A SG 11201700222UA
Authority
SG
Singapore
Prior art keywords
tomographic
loss factor
factor estimation
estimation
loss
Prior art date
Application number
SG11201700222UA
Other languages
English (en)
Inventor
Richard M Lee
Christopher Neil Kurby
Eric Derbez
Original Assignee
Iposi 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 Iposi Inc filed Critical Iposi Inc
Publication of SG11201700222UA publication Critical patent/SG11201700222UA/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/21Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/22Multipath-related issues
    • 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/711Interference-related aspects the interference being multi-path interference
    • H04B1/7113Determination of path profile
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/10Monitoring; Testing of transmitters
    • H04B17/101Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
    • H04B17/104Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof of other parameters, e.g. DC offset, delay or propagation times
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/23Indication means, e.g. displays, alarms, audible means
    • 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
    • H04B17/20Monitoring; Testing of receivers
    • H04B17/27Monitoring; Testing of receivers for locating or positioning the transmitter
    • 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
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/391Modelling the propagation channel
    • 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B2001/70724Spread spectrum techniques using direct sequence modulation featuring pilot assisted reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097Direct sequence modulation interference
    • H04B2201/709718Determine interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
SG11201700222UA 2014-07-14 2015-07-14 Tomographic loss factor estimation SG11201700222UA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462024195P 2014-07-14 2014-07-14
PCT/US2015/040271 WO2016010962A1 (en) 2014-07-14 2015-07-14 Tomographic loss factor estimation

Publications (1)

Publication Number Publication Date
SG11201700222UA true SG11201700222UA (en) 2017-03-30

Family

ID=55078962

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201700222UA SG11201700222UA (en) 2014-07-14 2015-07-14 Tomographic loss factor estimation

Country Status (5)

Country Link
US (1) US10274602B2 (https=)
EP (1) EP3170273A4 (https=)
JP (1) JP2017529720A (https=)
SG (1) SG11201700222UA (https=)
WO (1) WO2016010962A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106998222A (zh) * 2017-03-08 2017-08-01 南京航空航天大学 一种分布式天线系统中高能效的功率分配方法
KR102457542B1 (ko) * 2017-12-15 2022-10-21 한국전자통신연구원 덕트 간섭 현상을 분석하기 위한 덕트 측정 드론

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US6289203B1 (en) * 1998-02-25 2001-09-11 Motorola, Inc. Method of calculating signal propagation loss and creating a data base therefor
JP2000312172A (ja) * 1999-04-27 2000-11-07 Sharp Corp 衛星通信地上局
US6978151B2 (en) * 2001-05-10 2005-12-20 Koninklijke Philips Electronics N.V. Updating path loss estimation for power control and link adaptation in IEEE 802.11h WLAN
EP1435145A4 (en) * 2001-10-09 2010-06-02 Interdigital Tech Corp CLOSED LOOP POWER CONTROL WITH PROPAGATION WEAKENING COMPENSATION
JP3730589B2 (ja) * 2002-04-02 2006-01-05 日本無線株式会社 シャドーイング発生方向検出装置
US7095813B2 (en) * 2002-05-16 2006-08-22 Qualcomm Incorporated System and method for the detection and compensation of radio signal time of arrival errors
US7715850B2 (en) * 2002-10-22 2010-05-11 Qualcomm Incorporated Method and apparatus for identifying transmitters in a wireless communication system using power predictions
US20050124354A1 (en) * 2003-12-04 2005-06-09 Durgin Gregory D. Location estimation of wireless terminals using indoor radio frequency models
US7359727B2 (en) * 2003-12-16 2008-04-15 Intel Corporation Systems and methods for adjusting transmit power in wireless local area networks
US7702002B2 (en) * 2004-01-28 2010-04-20 Qualcomm Incorporated Rapid acquisition methods and apparatus for GPS signals
US7418236B2 (en) 2004-04-20 2008-08-26 Mobile Satellite Ventures, Lp Extraterrestrial communications systems and methods including ancillary extraterrestrial components
EP1589776A1 (en) 2004-04-19 2005-10-26 Telefonaktiebolaget LM Ericsson (publ) Dynamic allocation of radio resources
US7804786B2 (en) * 2005-05-17 2010-09-28 Andrew, Llc Method and apparatus for determining path loss by combining geolocation with interference suppression
US7660591B1 (en) * 2005-09-09 2010-02-09 Avaya Inc. Propagation loss model based indoor wireless location of stations
US7672282B1 (en) * 2005-11-21 2010-03-02 Marvell International Ltd. BSS selection using path loss
US7548200B2 (en) 2006-04-24 2009-06-16 Nemerix Sa Ephemeris extension method for GNSS applications
US8314736B2 (en) * 2008-03-31 2012-11-20 Golba Llc Determining the position of a mobile device using the characteristics of received signals and a reference database
JP4608515B2 (ja) * 2007-04-16 2011-01-12 株式会社エヌ・ティ・ティ・ドコモ 受信レベル推定システム
US9084202B2 (en) * 2007-10-22 2015-07-14 Nec Corporation Wireless communication system, base station, radio resource management method, and control program of base station
CN101965744B (zh) * 2008-03-26 2013-08-28 日本电气株式会社 无线电台站装置、无线电资源控制方法、存储无线电台站控制程序的记录介质以及无线电通信系统
CN102598521A (zh) * 2009-06-19 2012-07-18 科达无线私人有限公司 无线通信链路的表征
KR101785712B1 (ko) * 2009-10-23 2017-10-17 한국전자통신연구원 무선랜 시스템에서 송신 출력 제어 방법 및 장치
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CN104145512B (zh) * 2012-01-02 2018-08-17 华为技术有限公司 无线通信系统中的功率控制
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US10175364B2 (en) * 2014-07-01 2019-01-08 Nextnav, Llc Systems and methods for estimating whether a receiver is inside or outside a building

Also Published As

Publication number Publication date
US20180074204A1 (en) 2018-03-15
WO2016010962A1 (en) 2016-01-21
JP2017529720A (ja) 2017-10-05
EP3170273A4 (en) 2018-01-17
EP3170273A1 (en) 2017-05-24
US10274602B2 (en) 2019-04-30

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