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:
Apr. 01, 2003
Filed:
May. 28, 1999
Matthias Schulist, Erlangen, DE;
Dirk Gerstenberger, Kista, SE;
Michael Marquardt, Nürnberg, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
Use of a more accurate, constant or quasi-constant reference signal-to-noise ratio value to support the process of decoding information sequences that have been encoded using turbo coding techniques, particularly in UMTS WCDMA receivers, enhances the accuracy of the decoding process and, in turn, link quality and overall system performance. This may be accomplished by exploiting the reference SNR, which is generated, for example, by the power control loop in the receiver. More specifically, the present invention modifies this reference SNR value based on various factors including, but not limited to, the scaling factor that is applied to the decoder input metrics, power settings, processing gains, coding rates and/or the modulation scheme.