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. 20, 2012
Filed:
Dec. 17, 2007
Hideshi Murai, Kanagawa, JP;
BO Goransson, Sollentuna, SE;
Hideshi Murai, Kanagawa, JP;
Bo Goransson, Sollentuna, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A composite signal including a plurality of component signal streams is processed using QR-decomposition to detect symbols and calculate a decision metric for each of the signal streams (). Soft serial interference cancellation is performed on the composite signal based on the symbols detected for different ones of the signal streams and a ranking of the signal streams (). The symbols are re-detected and the decision metric re-calculated for each signal stream based on soft serial interference cancellation results (). The different decision metric calculations for at least one of the signal streams are compared to determine whether symbol detection is more accurate with or without soft serial interference cancellation (). The signal streams are decoded using symbols detected based on soft serial interference cancellation results when symbol detection is determined to be more accurate with soft serial interference cancellation (). Otherwise, the streams are decoded based on the symbols detected using QR-decomposition ().