Bewegliche Testvorrichtung und Verfahren zum Testen der Synchronisierung mit einer Basisstation, Entsprechendes Fahrzeug und System mit Solchen Testvorrichtungen

Details

Veröffentlichungs-Nr.

EP4787986

Anmeldetag

4. Februar 2025

Veröffentlichung

5. August 2026

Rechtsraum

EP

IPC

H04W56/00

Abstract

A movable test device (10) is provided for testing, especially during movement, of the synchronization of a base station (11, 15, 21, 31a, 31b, 31c, 31d, 41a, 41b) of a wireless network with reference to a reference time. The movable test device (10) may comprise a receiving unit (12) configured to measure a time of arrival for a synchronization and/or broadcast channel of the base station (11, 15), a location determination unit (13) configured to determine a measurement location of the movable test device (10), and configured to determine a base station location of the base station (11, 15) based on multilateration or based on a base station location database, a processing unit (14) connected to the receiving unit (12) and to the location determination unit (13), wherein the processing unit (14) is configured to determine a propagation time based on a distance between the base station location and the measurement location, determine a time of transmission based on the time of arrival and the propagation time, evaluate frame-timing, especially with respect to a reference time, based on the time of transmission, preferably with the aid of a model, and determine time-offset and/or drift of frame-start-times of the base station (11, 15) based on the frame-timing or based on the time of arrival, especially by solving a corresponding optimization problem.

Anmelder

Firma

Rohde & Schwarz GmbH & Co. KG

Land

🇩🇪 Deutschland

Fachgebiete