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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.

Patent No.:

US 11368350 B1

PDFFull Text
Date of Patent:
Jun. 21, 2022

Filed:

Jun. 12, 2020

Method for signal synchronization in ofdm based nb-iot system

Applicants:

Centre of Excellence IN Wireless Technology, Chennai, IN;

Indian Institute of Technology Madras (Iit Madras), Chennai, IN;

Inventors:

Budama Sree Charan Teja Reddy, Chennai, IN;

Sunil Kaimalettu, Chennai, IN;

Jeniston Deviraj Klutto Milleth, Chennai, IN;

Bhaskar Ramamurthi, Chennai, IN;

Assignees:

CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY, Chennai, IN;

INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IITMADRAS), Chennai, IN;

Attorney:
Primary Examiner:

Shailendra Kumar

Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04J 11/00 (2006.01); H04W 56/00 (2009.01); H04L 67/12 (2022.01); H04W 84/04 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04L 27/2675 (2013.01); H04J 11/00 (2013.01); H04W 56/001 (2013.01); H04J 2011/0009 (2013.01); H04L 67/12 (2013.01); H04W 84/042 (2013.01); H04W 88/08 (2013.01);
Abstract

Accordingly, embodiments herein disclose a method for signal synchronization in orthogonal frequency-division multiplexing (OFDM) based Narrow Band-Internet of Thing (NB-IoT) system. The method includes generating a New Radio-Narrowband Primary Synchronization Signal (NR-NPSS). Further, the method includes mapping each Zadoff-chu sequence of 14 Zadoff-chu sequences of the NR-NPSS to resource elements of each OFDM symbol of 14 OFDM symbols in an NR-NPSS subframe. Further, the method includes transmitting the NR-NPSS subframe comprising the mapped NR-NPSS to at least one User Equipment (UE) (), receiving the NR-NPSS subframe comprising the transmitted NR-NPSS by a base station (), generating a reference NR-NPSS, mapping each of the 14 Zadoff-chu sequences of the NR-NPSS to resource elements of each OFDM symbol of 14 OFDM symbols in an NR-NPSS subframe, and detecting the NR-NPSS from the received NR-NPSS subframe using the reference NR-NPSS to obtain the time and frequency synchronization in the NB-IoT system.

Find Patent Forward Citations

Charan Teja Reddy, Budama. (2022). Method for signal synchronization in ofdm based nb-iot system (U.S. Patent No. 11368350). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11368350

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