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:
Apr. 12, 2011
Eduardo Lins DE Medeiros, Hägersten, SE;
Boris Dortschy, Hägersten, SE;
Aldebaro Klautau, Marco-Belem-Para, BR;
Marcio Murilo Conte Monteiro, Belém, BR;
Eduardo Lins de Medeiros, Hägersten, SE;
Boris Dortschy, Hägersten, SE;
Aldebaro Klautau, Marco-Belem-Para, BR;
Marcio Murilo Conte Monteiro, Belém, BR;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A method and arrangement is proposed for adaptively generating a target noise margin for use on a DSL transmission line. The method includes determining a first quantity representing a current noise power on the line using line parameter data relating to the transmission performance of the line, determining a second quantity representing a worst-case noise power on said line using previously obtained values of the line parameter data, calculating the difference between the first and second quantities to generate a difference value, setting a target noise margin as at least equal to said difference value, and providing the target noise margin for use on the line upon initialisation of the line. In a preferred embodiment, the line parameter data is the bit loading on the line and the first and second quantities are values of the average signal-to-noise ratio on the line derived from the bit loading data.