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:
Sep. 14, 2004
Filed:
Nov. 08, 1999
Janne Vainio, Lempäälä, FI;
Hannu Mikkola, Tampere, FI;
Arto Saikanmäki, Tampere, FI;
Nokia Networks Oy, Espoo, FI;
Abstract
The invention relates to a method for estimating a channel bit error ratio in a receiver, and to a receiver. In the method, a pseudo bit error ratio of a channel is determined. The receiver ( ) comprises detecting means ( ) for detecting a data sequence of a received signal; decoding means ( ) for decoding a first encoding of the detected data signal; and re-encoding meant ( ) for re-encoding with the first encoding the data sequence decoded from the first encoding. The receiver ( ) of the invention further comprises quality determining means ( ) for providing the detected data sequence with a value for quality, and estimating means ( ) for estimating the bit error ratio-provided that the quality of the detected data sequence fulfils a predetermined quality requirement by comparing the detected data sequence with the data sequence re-encoded with first encoding. The first encoding is typically a convolution coding. One way in which quality can be determined is to decode the second encoding which is, for example, a cyclic redundancy check.