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.:
Date of Patent:
Mar. 28, 2023
Filed:
May. 14, 2020
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Yang Li, Plano, TX (US);
Tianyan Pu, Cupertino, CA (US);
Li Su, San Jose, CA (US);
Zhu Ji, San Jose, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04W 56/00 (2009.01);
U.S. Cl.
CPC ...
H04L 27/2692 (2013.01); H04L 27/26132 (2021.01); H04W 56/001 (2013.01); H04W 56/002 (2013.01);
Abstract
This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for providing synchronization sequences. A first wireless device may transmit a preamble of a device-to-device wireless communication with a second wireless device. The preamble may include a first synchronization sequence. The first synchronization sequence may include multiple repetitions of a basis sequence, multiplied by a cover code. The basis sequence may span multiple orthogonal frequency division multiplexing symbols.