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. 17, 2015
Filed:
Jun. 08, 2011
Andreas Wolfgang, Torslanda, SE;
Lei Bao, Göteborg, SE;
David Carling, Mölndal, SE;
Edvin Catovic, Göteborg, SE;
Andreas Wolfgang, Torslanda, SE;
Lei Bao, Göteborg, SE;
David Carling, Mölndal, SE;
Edvin Catovic, Göteborg, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
The invention relates to a method for carrier recovery of an equalized communications signal in a multiple-input multiple-output communications system. The method is comprised of the steps generating a phase rotation estimate from the equalized communications signal and a demodulated signal estimate of the equalized communications signal, and adjusting at least one of the phase and frequency of the equalized communications signal based on the phase rotation estimate. The step of generating the phase rotation estimate further comprising using a model based filter with the equalized communications signal as input signal to the model based filter and the demodulated signal estimate as a measurement to the model based filter.