Patent ID: 6370156
Filing Date: 2002-04-09
Classification: H04L

Abstract:
A method for transmitting data elements (DATA) from a transmitter (TX) to a receiver (RX), whereina. said data elements (DATA) modulate on at least one carrier; b. a pilot carrier used for synchronisation between said transmitter (TX) and said receiver (RX) is multiplexed with said at least one carrier; c. said at least one carrier and said pilot carrier are transmitted over a transmission medium (TM) interconnecting said transmitter (TX) and said receiver (RX), characterized in that said pilot carrier is modulated with a non-constant signal before it is transmitted so as to produce a pilot carrier having a sine or cosine waveform with non-constant phase and/or amplitude wherein said non-constant signal consists of part of said data elements (DATA) to be transmitted for enlarging bandwidth for transport of said data element, andd. said part of said data elements is sufficiently random in time thereby improving immunity of said pilot carrier to interference.