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. 07, 2023

Filed:

Nov. 04, 2019
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Erik Stare, Sollentuna, SE;

Sara Modarres Razavi, Linköping, SE;

Fredrik Gunnarsson, Linköping, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/00 (2009.01); G01S 5/02 (2010.01); G01S 1/04 (2006.01); H04W 64/00 (2009.01); H04B 17/336 (2015.01);
U.S. Cl.
CPC ...
G01S 5/0205 (2013.01); G01S 1/0428 (2019.08); H04W 64/003 (2013.01); H04B 17/336 (2015.01);
Abstract

The disclosure relates to an OTDOA positioning technique wherein different base stations transmit different variations of the same basic PRS or other positioning signal synchronously as an SFN signal to effect an observed time shift at the UE between the different variations of the basic PRS signal or positioning signal. This added time shift resulting from the transmission of different variations by different base stations effectively spreads the corresponding channel impulses in the CIR of the SFN signal in the time domain so that the UE is better able to detect and discriminate between different instances of the positioning signal transmitted from different base stations.


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