公开(公告)号：US20210389409A1

公开(公告)日：2021-12-16

申请号：US17283709

申请日：2018-10-09

Applicant: Nokia Solutions and Networks Oy

Inventor： Traian ABRUDAN ,  Holger CLAUSSEN ,  Veli-Matti KOLMONEN

IPC: G01S5/02 ,  G01S5/04

Abstract: This specification relates to estimation of a location of a mobile device using one or more locator devices. This specification describes an apparatus comprising: means for receiving, from one or more locator devices, each locator device comprising an antenna array, information indicative of a bearing from the antenna array of each of the one or more locator devices to a mobile device; means for determining parameters of a Kent distribution for each of the one or more locator devices based on the received information and predetermined characteristics of the antenna array; and means for determining an estimated position of the mobile device by performing an optimisation process on an objective function that is dependent on the Kent distribution parameters for each of the one or more locator devices.

公开(公告)号：US20250052880A1

公开(公告)日：2025-02-13

申请号：US18791959

申请日：2024-08-01

Applicant: Nokia Solutions and Networks Oy

Inventor： Ioannis KIMIONIS ,  Michael EGGLESTON ,  Eleftherios KAMPIANAKIS ,  Traian ABRUDAN

IPC: G01S13/00 ,  G01S13/36

Abstract: A multistatic backscatter system may comprise unsynchronized devices. The unsynchronized device may comprise two or more spatially separated transmitter devices to transmit carrier signals, a transmitter device being configured to transmit carrier signals over a frequency set of two or more different frequencies; at least one backscatter device configured to frequency-shift the carrier signals, modulate data on at least some of the carrier signals, and backscatter modulated frequency-shifted carrier signals as backscatter signals, and at least one receiver device configured to receive the carrier signals and the backscatter signals, to process them to obtain the data and determine ranging information for the backscatter device.

公开(公告)号：US20230273285A1

公开(公告)日：2023-08-31

申请号：US18107328

申请日：2023-02-08

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Marcus Roland HENNINGER ,  Traian ABRUDAN ,  Silvio MANDELLI

IPC: G01S5/02 ,  G01S5/06 ,  G01S5/10

CPC classification number: G01S5/0244 ,  G01S5/06 ,  G01S5/10

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause the apparatus at least to determine a set of position estimates for a mobile device, wherein each position estimate of the set of position estimates is associated with a) a specific one of a plurality of K many receiver devices configured to receive a reference signal from the mobile device or b) a specific one of a plurality of K many transmitter devices configured to transmit reference signals to the mobile device, and to determine, based at least on the set of position estimates, a set of residual errors associated with at least some position estimates of the set of position estimates.

公开(公告)号：US20220099789A1

公开(公告)日：2022-03-31

申请号：US17478100

申请日：2021-09-17

Applicant: Nokia Solutions and Networks Oy

Inventor： Traian ABRUDAN ,  Veli-Matti KOLMONEN ,  Holger CLAUSSEN

IPC: G01S5/04 ,  G01S5/02

Abstract: Inter-alia, a method is disclosed comprising: obtaining, for at least one reference position, an estimate of a representative direction from a node of a communication network to the at least one reference position based on information indicative of at least one directional measurement, the directional measurement being indicative at least of a propagation direction of a signal communicated between the at least one reference position and the node of the communication network; obtaining, for the at least one reference position, a weighted estimate of the representative direction based on at least an angular weighting function for the at least one reference position, the angular weighting function being representative at least of an aperture of at least one antenna of the node of the communication network; and obtaining information indicative at least of an orientation and/or position of the node of the communication network at least based on the weighted estimate of the representative direction obtained for the at least one reference position.