WO2008017033A3 - Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics - Google Patents

Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics Download PDF

Info

Publication number
WO2008017033A3
WO2008017033A3 PCT/US2007/075084 US2007075084W WO2008017033A3 WO 2008017033 A3 WO2008017033 A3 WO 2008017033A3 US 2007075084 W US2007075084 W US 2007075084W WO 2008017033 A3 WO2008017033 A3 WO 2008017033A3
Authority
WO
WIPO (PCT)
Prior art keywords
los
nlos
sight
statistics
line
Prior art date
Application number
PCT/US2007/075084
Other languages
French (fr)
Other versions
WO2008017033A2 (en
Inventor
Ismail Guvenc
Chia-Chin Chong
Original Assignee
Ntt Docomo Inc
Ismail Guvenc
Chia-Chin Chong
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
Priority claimed from US11/832,547 external-priority patent/US7574221B2/en
Priority claimed from US11/832,551 external-priority patent/US7577445B2/en
Application filed by Ntt Docomo Inc, Ismail Guvenc, Chia-Chin Chong filed Critical Ntt Docomo Inc
Priority to EP07813712A priority Critical patent/EP2047694A2/en
Priority to JP2009523057A priority patent/JP4567093B2/en
Priority to KR1020087026803A priority patent/KR101051906B1/en
Publication of WO2008017033A2 publication Critical patent/WO2008017033A2/en
Publication of WO2008017033A3 publication Critical patent/WO2008017033A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0218—Multipath in signal reception
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Non-line-of-sight (NLOS) identification and mitigation are carried out in a wireless positioning system based on channel statistics derived from multipath components of a received signal. The statistics may be based on the kurtosis (210), the mean excess delay sprea (220), or the root mean square delay spread (230). The results are justified using IEEE 802.15.4a ultrawideband channel models. Amplitude and delay statistics based on the IEEE models are shown to be log-normal random variables. A joint likelihood ratio test (260) is presented for the LOS and NLOS identification.
PCT/US2007/075084 2006-08-03 2007-08-02 Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics WO2008017033A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07813712A EP2047694A2 (en) 2006-08-03 2007-08-02 Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics
JP2009523057A JP4567093B2 (en) 2006-08-03 2007-08-02 Method of distinguishing line of sight (LOS) and non-LOS (NLOS) using multipath channel statistics data
KR1020087026803A KR101051906B1 (en) 2006-08-03 2007-08-02 Line or non-visible line identification method using multipath channel statistics

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US82137806P 2006-08-03 2006-08-03
US60/821,378 2006-08-03
US82212706P 2006-08-11 2006-08-11
US60/822,127 2006-08-11
US11/832,547 US7574221B2 (en) 2006-08-03 2007-08-01 Method for estimating jointly time-of-arrival of signals and terminal location
US11/832,547 2007-08-01
US11/832,551 2007-08-01
US11/832,551 US7577445B2 (en) 2006-08-03 2007-08-01 Line-of-sight (LOS) or non-LOS (NLOS) identification method using multipath channel statistics

Publications (2)

Publication Number Publication Date
WO2008017033A2 WO2008017033A2 (en) 2008-02-07
WO2008017033A3 true WO2008017033A3 (en) 2008-12-04

Family

ID=38997871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/075084 WO2008017033A2 (en) 2006-08-03 2007-08-02 Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics

Country Status (4)

Country Link
EP (1) EP2047694A2 (en)
JP (1) JP4567093B2 (en)
KR (1) KR101051906B1 (en)
WO (1) WO2008017033A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7526048B2 (en) * 2005-08-11 2009-04-28 Mitsubishi Electric Research Laboratories, Inc. Energy threshold selection for UWB TOA estimation
US7574221B2 (en) * 2006-08-03 2009-08-11 Ntt Docomo, Inc. Method for estimating jointly time-of-arrival of signals and terminal location
US7956808B2 (en) * 2008-12-30 2011-06-07 Trueposition, Inc. Method for position estimation using generalized error distributions
US9432882B2 (en) * 2013-01-29 2016-08-30 Qualcomm Incorporated System and method for deploying an RTT-based indoor positioning system
KR102367885B1 (en) 2014-07-03 2022-02-25 엘지전자 주식회사 New uplink reference signal transmission method and device in millimetre-wave-supporting wireless access system
JP6399512B2 (en) * 2014-10-20 2018-10-03 国立大学法人東京工業大学 Source estimation method and source estimation apparatus using the same
KR102412960B1 (en) 2016-01-25 2022-06-27 삼성전자주식회사 The apparatus and method for determining properties of channel
JP2016145836A (en) * 2016-03-23 2016-08-12 インテル コーポレイション Mechanism for employing and realizing geodetic triangulation for determining global positioning of computing devices
US10939401B2 (en) 2018-07-09 2021-03-02 Qualcomm Incorporated Round trip time estimation based on a timing advance applied to a timing response
WO2020034085A1 (en) 2018-08-14 2020-02-20 罗伯特·博世有限公司 Method and apparatus for detecting type of signal propagation
EP3860006A1 (en) * 2020-01-29 2021-08-04 Nokia Technologies Oy Path discrimination
CN111551180B (en) * 2020-05-22 2022-08-26 桂林电子科技大学 Smart phone indoor positioning system and method capable of identifying LOS/NLOS acoustic signals
KR20240051672A (en) * 2022-10-13 2024-04-22 삼성전자주식회사 Method and apparatus for adjusting ranging area using uwb(ultra-wideband) signal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644572A (en) * 1995-10-03 1997-07-01 Motorola, Inc. Method and apparatus for approximating propagation delay for use in transmission compensation to orbiting satellites
US7065368B2 (en) * 2002-12-30 2006-06-20 Kt Corporation Method for correcting NLOS error in wireless positioning system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998014018A1 (en) 1996-09-27 1998-04-02 Rutgers University Method and system for mobile location estimation
CN1159935C (en) 2001-03-30 2004-07-28 华为技术有限公司 Method and device for raising cellular mobile station positioning accuracy in urban environment
CN1173509C (en) * 2001-12-30 2004-10-27 华为技术有限公司 Identification method of visible and non-visible channel in CDMA mobile communication system
KR100876800B1 (en) * 2002-08-14 2009-01-07 삼성전자주식회사 Apparatus and method for determining position of mobile station
JP2006023267A (en) * 2004-06-09 2006-01-26 Ntt Docomo Inc Position measuring apparatus and position measuring method using multipath delay component
EP2050287A2 (en) * 2006-08-03 2009-04-22 NTT DoCoMo Inc. Weighted least square localization method exploiting multipath channel statistics for non-line-of-sight mitigation
US7574221B2 (en) * 2006-08-03 2009-08-11 Ntt Docomo, Inc. Method for estimating jointly time-of-arrival of signals and terminal location

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644572A (en) * 1995-10-03 1997-07-01 Motorola, Inc. Method and apparatus for approximating propagation delay for use in transmission compensation to orbiting satellites
US7065368B2 (en) * 2002-12-30 2006-06-20 Kt Corporation Method for correcting NLOS error in wireless positioning system

Also Published As

Publication number Publication date
KR20090009223A (en) 2009-01-22
JP4567093B2 (en) 2010-10-20
JP2009545934A (en) 2009-12-24
EP2047694A2 (en) 2009-04-15
WO2008017033A2 (en) 2008-02-07
KR101051906B1 (en) 2011-07-26

Similar Documents

Publication Publication Date Title
WO2008017033A3 (en) Line-of-sight (los) or non-los (nlos) identification method using multipath channel statistics
WO2010006874A3 (en) Method and apparatus for generating channel quality estimates
WO2009028258A1 (en) Base station device in mobile communication system, mobile station device, and base station control method
WO2005074514A3 (en) Communications channel characterization device and associated methods
WO2006107467A3 (en) Calibrating automatic test equipment
WO2009019062A3 (en) Channel sounding using multiple sounding signal configurations
WO2008116516A3 (en) Test device, mobile radio device and method for testing a mobile radio device
WO2004023678A3 (en) Method of and system for calibrating a repeater
WO2005111570A3 (en) Adaptive leak testing method
EP2288196A3 (en) Wireless communication methods and apparatus supporting synchronization
WO2015044343A3 (en) Method for testing a wireless link of a wi-fi node, and circuit performing the method
WO2009156510A3 (en) Own transmitter interference tolerant transceiver and receiving methods
ATE387764T1 (en) SIR ESTIMATE IN A WIRELESS RECEIVER
TW200723809A (en) Method of transmitting on a random access channel
ATE428227T1 (en) METHOD AND DEVICE FOR SYNCHRONIZING A WIRELESS RECEIVER
MX2007011460A (en) Methods and apparatuses of measuring impulse noise parameters in multi-carrier communication systems.
WO2011159404A3 (en) Beacon transmission techniques in directional wireless networks
WO2012036787A3 (en) Method and apparatus of obtaining timing in a repeater
ATE424080T1 (en) METHOD AND SYSTEM FOR SYNCHRONIZING A SUBSCRIBER COMMUNICATION DEVICE WITH A BASE STATION OF A WIRELESS COMMUNICATION SYSTEM
WO2009124283A3 (en) A method and system of a mobile subscriber estimating position
WO2006069281A3 (en) Idle state management
ATE460779T1 (en) METHOD AND DEVICE FOR INTERFERENCE SUPPRESSION IN WIRELESS RECEIVER
WO2008058155A3 (en) Variable gain antenna for cellular repeater
WO2011007982A3 (en) Device and method of estimating location of terminal using sequences transmitted from base stations
EP1848114A3 (en) Method of detecting a predetermined sequence in an RF signal using a combination of correlation and FFT

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07813712

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2007813712

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2009523057

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU