Patent ID: 6246725
Filing Date: 2001-06-12
Classification: H04L

Abstract:
A telecommunication transmitter (TU) for a multi-carrier transmission system, said transmitter including coding means (MMC) coupled between a transmitter input (IN) and a transmitter output (OUT) and able to modulate a plurality of carriers (Cl-Cn) with data received at said transmitter input and to derive therefrom symbols which are transmitted towards said transmitter output, characterized in that said telecommunication transmitter (TU) further includes carrier selection means (CS) adapted to apply said carriers (Cl-Cn) to said coding means (MMC), and data traffic detection means (DDC) adapted to detect if idle data are received at said transmitter input (IN) and, if idle data are detected, to control (CX) said carrier selection means to apply a predetermined reduced set (Cp) of said carriers to said coding means.