Codierung und Decodierung von Vectoring-Koeffizienten mit Differenzieller Codierungsgrösse

Details

Veröffentlichungs-Nr.

EP3291452

Aktenzeichen

EP16306093

Anmeldetag

30. August 2016

Veröffentlichung

25. März 2020

Erteilung

25. März 2020

Rechtsraum

EP

IPC

H04B3/32

Abstract

The present invention relates to a method for encoding a first sequence of integer coefficient values ({x*(i ,j,2l-1)}=1, 2,...; {X*(i,j,21)}l=1,2,...) indicative of coupling coefficient values. In accordance with an embodiment of the invention, the method comprises determining a second sequence of numbers of digits for encoding the respective integer coefficient values of the first sequence, the second sequence comprising, as first element, a first number of digits for encoding the first integer coefficient value of the first sequence, and as second and subsequent elements, constrained numbers of digits that are greater than or equal to respective minimum required numbers of digits for encoding the second and subsequent integer coefficient values of the first sequence. The constrained numbers of digits are such that any two successive elements of the second sequence do not differ from each other by more than a given threshold value. The method further comprises encoding difference values between the successive elements of the second sequence; and encoding the integer coefficient values of the first sequence using the respective numbers of digits of the second sequence. The present invention also relates to a corresponding encoder, to a method for decoding, and to a corresponding decoder.

Anmelder

Firmen

Alcatel Lucent
ALCATEL LUCENT

Land

🇫🇷 Frankreich

Fachgebiete