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:
Oct. 11, 2005
Filed:
Jan. 02, 2001
Lars Svensson, Göteborg, SE;
Bengt Lindoff, Bjärred, SE;
Lars Svensson, Göteborg, SE;
Bengt Lindoff, Bjärred, SE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A method, system, and apparatus enables interfering signals in a communications system to be efficiently identified using correlation calculations. Once identified, the interfering signals may be rejected and removed from further processing in a receiver. The number of mathematical operations required to determine correlates of multiple training sequences to received sequences (e.g., at multiple offsets) may be reduced by up to eighty percent (80%) in a Global System for Mobile Communications (GSM) implementation. In accordance with certain embodiments, a correlation equation is manipulated, for example, to eliminate certain products by ensuring that they equate to zero, to eliminate redundant calculations by recognizing repeated subsequences, to eliminate common subexpressions, to determine a negative of a correlation result, etc. The manipulated correlation equation is then utilized within a receiver.