FI111901B - Estimation av position i trådlösa kommunikationsnät - Google Patents

Estimation av position i trådlösa kommunikationsnät Download PDF

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Publication number
FI111901B
FI111901B FI20002891A FI20002891A FI111901B FI 111901 B FI111901 B FI 111901B FI 20002891 A FI20002891 A FI 20002891A FI 20002891 A FI20002891 A FI 20002891A FI 111901 B FI111901 B FI 111901B
Authority
FI
Finland
Prior art keywords
receiver
location
calibration
signal parameters
statistical model
Prior art date
Application number
FI20002891A
Other languages
English (en)
Finnish (fi)
Other versions
FI20002891A (sv
FI20002891A0 (sv
Inventor
Antti Tuominen
Petri Myllymaeki
Henry Tirri
Petri Kontkanen
Jussi Lahtinen
Tomi Silander
Teemu Tonteri
Kimmo Valtonen
Hannes Wettig
Original Assignee
Ekahau Oy
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 Ekahau Oy filed Critical Ekahau Oy
Publication of FI20002891A0 publication Critical patent/FI20002891A0/sv
Priority to FI20002891A priority Critical patent/FI111901B/sv
Priority to PCT/FI2001/001151 priority patent/WO2002054813A1/en
Priority to JP2002555570A priority patent/JP4029040B2/ja
Priority to DE60132716T priority patent/DE60132716T2/de
Priority to EP01994865A priority patent/EP1354491B1/en
Priority to AT01994865T priority patent/ATE385659T1/de
Priority to CNB018214878A priority patent/CN1224289C/zh
Priority to ES01994865T priority patent/ES2300382T3/es
Publication of FI20002891A publication Critical patent/FI20002891A/sv
Priority to US10/465,785 priority patent/US7228136B2/en
Application granted granted Critical
Publication of FI111901B publication Critical patent/FI111901B/sv

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Classifications

    • 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
    • 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
    • G01S5/0252—Radio frequency fingerprinting
    • G01S5/02521—Radio frequency fingerprinting using a radio-map

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Alarm Systems (AREA)

Claims (15)

1. Förfarande för att uppskatta läget (X) för en mottagare (R, R’) i en tradlös telekommunikationsmiljö (RN), vilken omfattar ett flertal kanaler för samtidig kommunikation, varvid varje kanal har ätminstone en signalparameter 5 (V), som varierar beroende pä läget (X) pä ett annat sätt än pä de andra kana- lerna, kännetecknat av att förfarandet omfattarföljande steg: för var och en av ett flertal kalibreringspunkter i den trädlösa tele-kommunikationsmiljön bestäms en mängd kalibreringsmätningar (CM), varvid var och en mängd kalibreringsmätningar omfattar läget (X) för kalibrerings-10 punkten i fraga och ätminstone en uppmätt signalparameter (V) för var och en av flera kanaler i kalibreringspunkten i fraga; pä basis av kalibreringsmätningarna (CM) upprätthälls en statistisk modell (SM) av flera kanalers signalparametrar (V) som en funktion av motta-garens läge i den trädlösa telekommunikationsmiljön (RN); 15 en mängd observerade signalparametrar (CO) bestäms, vilken mängd omfattar ätminstone en observerad signalparameter (V) för var och en av flera kanaler i mottagarens (R, R’) läge (X); och ett lägesestimat (LE) som approximerar läget (X) för mottagaren (R, R’) bestäms pä basis av den statistiska modellen (SM) och mängden observe-20 rade signalparametrar (CO).
: 2. Förfarande enligt patentkrav 1, kännetecknat av att mottaga- ; ren (R) sänder mängden observerade signalparametrar (CO) tili en extern lä- : gesuppskattningsmodul (LEM), som sänder lägesuppskattningen (LE) tili mot- : tagaren (R). ’ 25
3. Förfarande enligt patentkrav 1, kännetecknat av att i motta- : garen (R’) är en kopia av den statistiska modellen (SM) lagrad, och att den ‘ ’ bestämmer lägesuppskattningen (LE) pä basis av kopian av den statistiska modellen (SM).
• * 4. Förfarande enligt nägot av de föregäende patentkraven, k ä n n e - ,.,: 30 t e c k n a t av att den statistiska modellen (SM) dessutom upprätthälls pä basis .·; av förhandsinformation om den trädlösa miljöns (RN) infrastruktur.
,···, 5. Förfarande enligt nägot av patentkraven 1-4, kännetecknat av att den statistiska modellen (SM) är eller omfattar en probalistisk modell, : “ företrädesvis en Bayes-modell. :.''i 35
6. Förfarande enligt patentkrav 5, kä n n eteck n at av att den sta tistiska modellen (SM) är eller omfattar en Bayes-nätmodell. 111901 23
7. Förfarande enligt nägot av de föregäende patentkraven, kanne-tecknat av att signalparametrarna i den statistiska modellen (SM) är obero-ende av varandra, när läget (X) är känt.
8. Förfarande enligt nägot av de föregäende patentkraven, k ä n n e -5 tecknat av att osäkerheten med avseende pä mottagarens läge minskas pä basis av de observerade signalparametrarnas historia (OH).
9. Förfarande enligt nägot av de föregäende patentkraven, kanne-tecknat av att ätminstone nägra parametrar utformas med diskreta variab-ler, vilkas värden motsvarar intervall eller intervallunioner inom omrädet av 10 möjliga signalparametervärden.
10. Förfarande enligt nägot av de föregäende patentkraven, kän-netecknat av att läget (X) utformas som en diskret variabel.
11. Lägesuppskattningsapparat (LEM) för att uppskatta läget (X) för en mottagare (R, R’) i en trädlös telekommunikationsmiljö (RN), vilken omfattar 15 ett flertal kanaler för samtidig kommunikation, varvid varje kanal har ätminstone en signalparameter (V), som varierar beroende pä läget (X) pä ett annat sätt än pä de andra kanalerna, kännetecknat av att lägesuppskattnings-apparaten omfattar: en modellkonstruktionsmodul (MCM): 20. för att motta en mängd kalibreringsmätningar (CM) för var och en av ett flertal kalibreringspunkter i den trädlösa telekommunikationsmiljön, varvid var och en mängd kalibreringsmätningar omfattar läget (X) för kalibrerings-punkten i fräga och ätminstone en uppmätt signalparameter (V) för var och en av flera kanaler i kalibreringspunkten i fräga; och ' 25 - för att upprätthälla pä basis av kalibreringsmätningarna (CM) en statistisk modell (SM) av flera kanalers signalparametrar (V) som en funktion , · ·. av mottagarens läge i den trädlösa telekommunikationsmiljön (RN); samt en lägesberäkningsmodul (LCM): - för att motta en mängd observerade signalparametrar (CO), vilken ;,, f 30 mängd omfattar ätminstone en observerad signalparameter (V) för var och en 1 *; · ‘ av flera kanaler i mottagarens (R, R’) läge (X); och : - för att bestämma ett lägesestimat som approximerar läget (X) för mottagaren (R, R’) pä basis av den statistiska modellen (SM) och mängden observerade signalparametrar (CO). ‘‘ 35
12. Mottagare (R, R’) som omfattar medel för att bestämma mäng- ’ · ‘: der av observerade signalparametrar (CO), av vilka var och en mängd omfattar 111901 24 ätminstone en observerad signalparameter (V) för var och en av flera kanaler i mottagarens (R, R’) läge (X), kännetecknat avatt mottagaren omfattar medel för att överföra mängderna av observerade signalparametrar (CO) tili en lägesberäkningsmodul (LCM) för att bestämma ett lägesestimat (LE) som ap-5 proximerar läget (X) för mottagaren (R, R’) pä basis av nämnda mängder och en statistisk modell (SM) av flera kanalers signalparametrar (V) som en funktion av en mottagares läge i en trädlös telekommunikationsmiljö (RN).
13. Mottagare (R’) enligt patentkrav 12, kännetecknat av att den omfattar lägesberäkningsmodulen (LCM).
14. Mottagare (R) enligt patentkrav 12, kännetecknat av att medlen för överföring av mängderna av observerade signalparametrar omfattar medel (Rl) för att överföra mängderna tili en extern lägesberäkningsmodul (LCM).
15. Mottagare enligt nägot av patentkraven 12-14, känneteck-15 n at av att ätminstone nagra av mängderna av observerade signalparametrar (CO) avser nät som mottagaren inte är ansluten tili. I · * »
FI20002891A 2000-12-29 2000-12-29 Estimation av position i trådlösa kommunikationsnät FI111901B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI20002891A FI111901B (sv) 2000-12-29 2000-12-29 Estimation av position i trådlösa kommunikationsnät
EP01994865A EP1354491B1 (en) 2000-12-29 2001-12-27 Location estimation in wireless telecommunication networks
JP2002555570A JP4029040B2 (ja) 2000-12-29 2001-12-27 無線通信ネットワークにおける位置の評価
DE60132716T DE60132716T2 (de) 2000-12-29 2001-12-27 Positionsschätzung in drahtlosen telekommunikationsnetzen
PCT/FI2001/001151 WO2002054813A1 (en) 2000-12-29 2001-12-27 Location estimation in wireless telecommunication networks
AT01994865T ATE385659T1 (de) 2000-12-29 2001-12-27 Positionsschätzung in drahtlosen telekommunikationsnetzen
CNB018214878A CN1224289C (zh) 2000-12-29 2001-12-27 无线远程通信网中的位置估计
ES01994865T ES2300382T3 (es) 2000-12-29 2001-12-27 Estimacion de localizacion en redes de telecomunicacion sin hilos.
US10/465,785 US7228136B2 (en) 2000-12-29 2003-06-20 Location estimation in wireless telecommunication networks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20002891A FI111901B (sv) 2000-12-29 2000-12-29 Estimation av position i trådlösa kommunikationsnät
FI20002891 2000-12-29

Publications (3)

Publication Number Publication Date
FI20002891A0 FI20002891A0 (sv) 2000-12-29
FI20002891A FI20002891A (sv) 2002-06-30
FI111901B true FI111901B (sv) 2003-09-30

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FI20002891A FI111901B (sv) 2000-12-29 2000-12-29 Estimation av position i trådlösa kommunikationsnät

Country Status (9)

Country Link
US (1) US7228136B2 (sv)
EP (1) EP1354491B1 (sv)
JP (1) JP4029040B2 (sv)
CN (1) CN1224289C (sv)
AT (1) ATE385659T1 (sv)
DE (1) DE60132716T2 (sv)
ES (1) ES2300382T3 (sv)
FI (1) FI111901B (sv)
WO (1) WO2002054813A1 (sv)

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