LTE Fingerprinting Localization with Altitude

Author

Wigren, Torbjörn

Author_Institution

Ericsson AB, Stockholm, Sweden

fYear

2012

fDate

3-6 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

The paper shows how to add altitude to the adaptive enhanced cell identity (AECID) fingerprinting localization method in the long term evolution (LTE) cellular system. This improves the precision of E- 911 emergency positioning in vertically extended regions like in tall buildings. The altitude is added to the corners of a polygon using assisted GPS (A-GPS), observed time difference of arrival (OTDOA) or uplink time difference of arrival (U-TDOA) altitude measurements of opportunity. A new algorithm transforms to a 3-dimensional point with an ellipsoidal uncertainty, since the latter format is standardized on all LTE position reporting interfaces.

Keywords

Global Positioning System; Long Term Evolution; fingerprint identification; height measurement; radio links; A-GPS; AECID fingerprinting localization method; E-911 emergency positioning; LTE; OTDOA; U-TDOA altitude measurement; adaptive enhanced cell identity; assisted GPS; long term evolution cellular system; observed time difference of arrival; polygon; uplink time difference of arrival; vertically extended regions; Ellipsoids; Fingerprint recognition; GSM; Gravity; Position measurement; Standards; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2012 IEEE

Conference_Location

Quebec City, QC

ISSN

1090-3038

Print_ISBN

978-1-4673-1880-8

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2012.6398972

Filename

6398972