BR9904452A - Gps de radiotelefonia assistido utilizando uma localização de referência - Google Patents

Gps de radiotelefonia assistido utilizando uma localização de referência

Info

Publication number
BR9904452A
BR9904452A BR9904452-8A BR9904452A BR9904452A BR 9904452 A BR9904452 A BR 9904452A BR 9904452 A BR9904452 A BR 9904452A BR 9904452 A BR9904452 A BR 9904452A
Authority
BR
Brazil
Prior art keywords
gps
estimates
wag
reference location
assisted
Prior art date
Application number
BR9904452-8A
Other languages
English (en)
Inventor
Robert Ellis Richton
Giovanni Vannucci
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR9904452A publication Critical patent/BR9904452A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • G01S19/06—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data employing an initial estimate of the location of the receiver as aiding data or in generating aiding data
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/252—Employing an initial estimate of location in generating assistance data
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/254—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H04B7/2125—Synchronisation
    • H04B7/2126—Synchronisation using a reference station
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/008—Transmission of position information to remote stations using a mobile telephone network
    • 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
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0045—Transmission from base station to mobile station
    • G01S5/0063—Transmission from base station to mobile station of measured values, i.e. measurement on base station and position calculation on mobile

Landscapes

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

Abstract

<B>GPS DE RADIOTELEFONIA ASSISTIDO UTILIZANDO UMA LOCALIZAçãO DE REFERêNCIA<D> A invenção refere-se a um método para estimar uma sincronização de PRN, e uma freq³ência de Doppler de um sinal de satélite em uma localização de referência dentro de uma célula e setor onde está localizado um terminal sem fio ou cliente de WAG. As estimativas são baseadas em informações transmitidas por um sinal de GPS recebido por um sistema auxiliar ou servidor de WAG, que pode estar em um local diferente do terminal sem fio ou cliente de WAG. As estimativas de sincronização de PRN e de freq³ência de Doppler também são baseadas em algum tempo de referência, que é um tempo que está suficientemente distante no futuro para permitir que um cliente de WAG demodule e decodifique as estimativas de sincronização de PRN e da freq³ência de Doppler de uma mensagem de assistência transmitida pelo servidor de WAG e utilize tais estimativas para receber sinais de GPS, em que a mensagem de assistência indica as estimativas de sincronização de PRN e da freq³ência de Doppler.
BR9904452-8A 1998-10-16 1999-10-07 Gps de radiotelefonia assistido utilizando uma localização de referência BR9904452A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10466198P 1998-10-16 1998-10-16
US09/321,075 US6538600B1 (en) 1998-10-16 1999-05-27 Wireless assisted GPS using a reference location

Publications (1)

Publication Number Publication Date
BR9904452A true BR9904452A (pt) 2001-01-16

Family

ID=26801802

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9904452-8A BR9904452A (pt) 1998-10-16 1999-10-07 Gps de radiotelefonia assistido utilizando uma localização de referência

Country Status (11)

Country Link
US (1) US6538600B1 (pt)
EP (1) EP1008862B1 (pt)
JP (1) JP3527669B2 (pt)
KR (1) KR100722703B1 (pt)
CN (1) CN1255641A (pt)
AU (1) AU5348499A (pt)
BR (1) BR9904452A (pt)
CA (1) CA2280758A1 (pt)
DE (1) DE69902432T2 (pt)
ES (1) ES2182460T3 (pt)
ID (1) ID23358A (pt)

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Also Published As

Publication number Publication date
DE69902432T2 (de) 2003-05-28
CN1255641A (zh) 2000-06-07
JP2000121717A (ja) 2000-04-28
EP1008862A1 (en) 2000-06-14
ES2182460T3 (es) 2003-03-01
AU5348499A (en) 2000-04-20
DE69902432D1 (de) 2002-09-12
US6538600B1 (en) 2003-03-25
CA2280758A1 (en) 2000-04-16
KR100722703B1 (ko) 2007-06-04
JP3527669B2 (ja) 2004-05-17
ID23358A (id) 2000-04-20
KR20000029129A (ko) 2000-05-25
EP1008862B1 (en) 2002-08-07

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: H04W 56/00 (2009.01), G01S 19/06 (2010.0