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:
May. 24, 2016
Filed:
Oct. 02, 2009
Bjorn Ulf Anders Sihlbom, Vastra Frolunda, SE;
Bjorn Ulf Anders Sihlbom, Vastra Frolunda, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
A method and apparatus is provided for performing initial ranging at a receiver for establishing a time reference for a predefined received signature signal () for establishing a time reference overcoming round trip time between a receiver and a transmitter. There is performed () matched filtering in at least two matched sub-filters (M, M, M, M), each sub-filter having a matched filter sub-sequence () corresponding to a fragment () of the basic sequence () of the predefined signature signal (), wherein the fragments do not overlap one another with respect to the basic sequence, the matched filtering by each respective sub-filter providing peaks in dependence of the respective sub-sequence () correlating with a respective fragment of the received signature signal.