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:
Nov. 07, 2017
Filed:
Jul. 06, 2016
Google Technology Holdings Llc, Mountain View, CA (US);
Hidenori Akita, Higashimurayma, JP;
Kevin L. Baum, Rolling Meadows, IL (US);
Brian K. Classon, Palatine, IL (US);
Masaya Fukuta, Meguro-ku, JP;
Hiroshi Hayashi, Nishitokyo, JP;
Vijay Nangia, Algonquin, IL (US);
Robert T. Love, Barrington, IL (US);
Kenneth A. Stewart, Grayslake, IL (US);
Google Technology Holdings LLC, Mountain View, CA (US);
Abstract
A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements interleaved in time and frequency. The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry for common sequence elements in OFDMA symbol periods for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.