The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 2022

Filed:

Sep. 14, 2021
Applicant:

Nokia Technologies Oy, Espoo, FI;

Inventors:

Frank Frederiksen, Klarup, DK;

Jeroen Wigard, Klarup, DK;

Knud Knudsen, Aabybro, DK;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/25 (2010.01); G01S 19/29 (2010.01); G01S 19/24 (2010.01);
U.S. Cl.
CPC ...
G01S 19/256 (2013.01); G01S 19/243 (2013.01); G01S 19/254 (2013.01); G01S 19/29 (2013.01);
Abstract

Apparatus and method for communication in non-terrestrial networks are disclosed. A set of Doppler shift curves for different distances to one or more satellite orbits is obtained. Measurements of satellite transmission are performed to obtain estimate of instantaneous Doppler shift of the transmission, the measurements including a timestamp. A Doppler shift curve corresponding to the measurements is calculated. A time offset on the selected curve is determined utilising the timestamps of the measurements, the time offset indicating the position of the Doppler shift of the apparatus on the curve. The Doppler shift of the satellite transmission is determined utilising the selected curve and the time offset.


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