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1. WO2017030488 - METHODS AND APPARATUSES FOR POSITIONING BASED ON SIGNAL CORRELATION FUNCTION CHARACTERISTICS FEEDBACK

Publication Number WO/2017/030488
Publication Date 23.02.2017
International Application No. PCT/SE2016/050754
International Filing Date 15.08.2016
IPC
H04W 64/00 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
64Locating users or terminals for network management purposes, e.g. mobility management
G01S 5/02 2010.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
H04L 7/04 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
04Speed or phase control by synchronisation signals
CPC
G01S 1/045
GPHYSICS
01MEASURING; TESTING
SRADIO 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
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
04Details
045Receivers
G01S 1/20
GPHYSICS
01MEASURING; TESTING
SRADIO 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
1Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02using radio waves
08Systems for determining direction or position line
20using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
G01S 11/08
GPHYSICS
01MEASURING; TESTING
SRADIO 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
11Systems for determining distance or velocity not using reflection or reradiation
02using radio waves
08using synchronised clocks
G01S 5/0036
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
0009Transmission of position information to remote stations
0018Transmission from mobile station to base station
0036of measured values, i.e. measurement on mobile and position calculation on base station
G01S 5/02
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
G01S 5/0215
GPHYSICS
01MEASURING; TESTING
SRADIO 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
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
0205Details
0215Interference
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • GUNNARSSON, Fredrik
  • WANG, Meng
  • ZAIDI, Ali
  • MODARRES RAZAVI, Sara
  • RYDÉN, Henrik
Agents
  • BOU FAICAL, Roger
Priority Data
62/205,32514.08.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS AND APPARATUSES FOR POSITIONING BASED ON SIGNAL CORRELATION FUNCTION CHARACTERISTICS FEEDBACK
(FR) PROCÉDÉS ET APPAREILS DE POSITIONNEMENT SUR LA BASE D’UNE RÉTROACTION DE CARACTÉRISTIQUE DE FONCTION DE CORRÉLATION DE SIGNAL
Abstract
(EN)
A method, apparatus, and system are provided for facilitating positioning based on signal correlation function characteristic feedback. In an embodiment, the method may involve steps performed by a network node in communication with a 5 wireless communication device (WCD) and a plurality of base stations. The network node receives, from the WCD, location information including position reference signal (PRS) correlation function characteristics of a cross-correlation between a received downlink signal and a transmitted PRS for each base station from the plurality of base stations. The network node determines a position of the WCD using 0 the PRS correlation function characteristics. The WCD may initiate the transmission of the PRS correlation function characteristics on its own, or in response to a request to do so from the network node.
(FR)
L’invention concerne un procédé, un appareil et un système pour faciliter le positionnement sur la base d’une rétroaction de caractéristique de fonction de corrélation de signal. Dans un mode de réalisation, le procédé peut mettre en jeu des étapes réalisées par un nœud de réseau en communication avec un dispositif de communication sans fil (WCD) et une pluralité de stations de base. Le nœud de réseau reçoit, à partir du WCD, des informations d’emplacement comprenant des caractéristiques de fonction de corrélation de signal de référence de position (PRS) d’une corrélation croisée entre un signal de liaison descendante reçu et un PRS émis pour chaque station de base parmi la pluralité de stations de base. Le nœud de réseau détermine une position du WCD à l’aide des caractéristiques de fonction de corrélation de PRS. Le WCD peut initier la transmission des caractéristiques de fonction de corrélation de PRS lui-même, ou en réponse à une requête pour réaliser cette dernière en provenance du nœud de réseau.
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