Invention Grant
- Patent Title: Method, apparatus and system for determining a position of a wireless device
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Application No.: US16965025Application Date: 2018-02-09
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Publication No.: US11445469B2Publication Date: 2022-09-13
- Inventor: Satyam Dwivedi , Henrik Asplund , Jonas Medbo , Fredrik Gunnarsson , Ali Zaidi , Sara Modarres Razavi
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Sage Patent Group
- International Application: PCT/SE2018/050123 WO 20180209
- International Announcement: WO2019/156603 WO 20190815
- Main IPC: H04W24/00
- IPC: H04W24/00 ; H04W64/00 ; G01S5/02 ; H04L5/00 ; H04W56/00

Abstract:
Methods and apparatuses for determining a position of a wireless device in a wireless communication network are provided. The method includes obtaining a first sequence of Time Difference of Arrivals (TDOAs) at the wireless device of reference signals, which are transmitted by and used for synchronization of a first pair of network nodes; and determining, based on the first sequence of TDOAs, a first relative distance. The method also includes obtaining a second sequence of TDOAs at the wireless device of reference signals, which are transmitted by and used for synchronization of a second pair of network nodes; and determining, based on the first sequence of TDOAs, a second relative distance. The method further includes determining the position of the wireless device based on the first and second relative distances. Corresponding computer programs and computer program carriers are also disclosed.
Public/Granted literature
- US20210112521A1 A METHOD, APPARATUS AND SYSTEM FOR DETERMINING A POSITION OF A WIRELESS DEVICE Public/Granted day:2021-04-15
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