User equipment localization in a mobile communication network based on delays and path strengths

US10687303B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Martin Kurras · Berlin, DE
• Markus Landmann · Erlangen, DE
• Marcus Grossmann · Erlangen, DE
• Sutharshun Varatharaajan · Erlangen, DE
• Niels Hadaschik · Erlangen, DE
• Lars THIELE · Berlin, DE

Key dates

• Filing date: May 10, 2019
• Grant date: Jun 16, 2020
• Expiry date: May 10, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W64/006
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A receiver has a plurality of antennas and receives a plurality of radio signals from a plurality of transmitters of different cells of a wireless communication network. Each radio signal has a position reference signal sequence and is transmitted to the receiver via a radio channel including a plurality of path components. The receiver processes the radio signal to estimate for a path component the time of arrival of the PRS sequence and to determine for a path component a path strength value of the PRS sequence. A position of the receiver is estimated using the ToAs and the PS values.