Nichtlinearer Vorcodierer mit getrennter Verfolgung

Details

Veröffentlichungs-Nr.

EP2919392

Aktenzeichen

EP14305349

Anmeldetag

11. März 2014

Veröffentlichung

8. März 2017

Erteilung

8. März 2017

Rechtsraum

EP

IPC

H04B3/32H04L5/00

Abstract

The present invention relates to a network unit (100) comprising a non-linear precoder (120) for jointly preprocessing transmit samples to be transmitted over respective communication channels for crosstalk mitigation. The non-linear precoder comprises a first non-linear precoding stage (121) configured to operate according to a first triangular precoding matrix (L) and including a modulo function (“), followed by a second linear precoding stage (122) configured to operate according to a second precoding matrix (Q). The network unit further comprises a first pilot signal generator (111) configured to generate first pilot signals (X1) for preprocessing by the second precoding stage only to yield partially-precoded pilot signals for further transmission over the respective communication channels, and a controller (130) configured to update the second precoding matrix based on first error measurements performed during the transmission of the partially-precoded pilot signals over the respective communication channels while keeping the first precoding matrix unaltered. The present invention also relates to a pilot generator for use with a non-linear precoder, and to a method for controlling a non-linear precoder.

Anmelder

Firma

ALCATEL LUCENT

Land

🇫🇷 Frankreich

Fachgebiete