Systems and methods for a multi-carrier transceiver with radio frequency interference reduction

Abstract

A multi-carrier information transceiver that exhibits robustness against radio frequency interference (RFI) signals present in the communications channel. The transceiver includes a RFI mitigation technique that operates not only during the steady state operation of the transceiver but also during the training stage of the transceiver. That requires dynamically modifying the training signals when the presence of RFI is detected. The modification of the training signals facilitates the estimation of RFI, improving the performance of the multi-carrier transceiver.

1 - 33 . (canceled)  
   
   
       34 . A method of multi-carrier modulation communication for communication between a transmitter and a receiver, 
 wherein:    the receiver is adapted to measure radio frequency interference and to determine a message specifying one or more tones to be disabled when radio frequency interference has been detected, and    one or more tones are disabled by the transmitter based on the message during a signal-to-noise ratio measurement in a training stage.    
   
   
       35 . The method according to claim  1 , wherein the message indicates at least one of: which one or more tones are to be disabled, and in which one or more training stages the one or more tones are to be disabled.  
   
   
       36 . The method according to claim  1 , wherein the message specifies tone numbers to be disabled.  
   
   
       37 . The method according to claim  1 , further comprising estimating radio frequency interference based on one or more templates, wherein the one or more templates model radio frequency interference and are dynamically chosen for one or more discrete multi-tone symbols.  
   
   
       38 . The method according to claim  1 , wherein the one or more tones are disabled during a data communication stage.