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. 24, 2015
Filed:
Nov. 30, 2012
Motorola Mobility Llc, Libertyville, IL (US);
Thomas P Krauss, Algonquin, IL (US);
Michael J Carney, Libertyville, IL (US);
Anthony R Schooler, Bartlett, IL (US);
Google Technology Holdings LLC, Mountain View, CA (US);
Abstract
Methods and apparatus for estimating time of arrival information associated with a wireless signal are disclosed. In an embodiment, a wireless device (), or any other suitable device or system, determines a channel type based on multiple occurrences of a reference signal () (e.g., determine if a channel is delay-spread or non-delay-spread based on a ratio of largest peak to a mean of other peaks). The wireless device () then selects a time of arrival generator (or) based on the channel type (e.g., use delay-spread estimator if ratio is below threshold, and use non-delay-spread estimator if ratio is above threshold). The wireless device then () estimates the time of arrival information using the selected time of arrival generator (or) (e.g., sum peaks from multiple occasions and then estimate for delay-spread or estimate the time of arrival from each occasion and then average for non-delay-spread).