Impulse noise management

Abstract

A discrete multitone transceiver (DMT) includes a deinterleaver operable to de-interleave a plurality of bits. The DMT further includes: a forward error correction decoder operable to decode the plurality of bits, a module operable to determine, during Showtime, an impulse noise protection value, wherein the impulse protection value specifies a number corrupted DMT symbols that can be corrected by the forward error correction decoder in combination with the deinterleaver, and a receiver coupled to the deinterleaver. The receiver receives using a first interleaver parameter value, receives a flag signal, and changes to receiving using a second interleaver parameter value that is different than the first interleaver parameter value, wherein the second interleaver parameter value is used for reception on a pre-defined forward error correction codeword boundary following reception of the flag signal.

1 - 92 . (canceled) 
     
     
         93 . A multicarrier transceiver comprising:
 a controller operable to determine at least one forward error correction parameter value based on:
 both a first impulse noise protection value associated with a repetition period of electrical impulse noise, and 
 a second impulse noise value associated with a length of impulse noise; 
   a transmitter operable to transmit the at least one forward error correction parameter value in a first message,   wherein the at least one forward error correction parameter value is a Reed Solomon (RS) Coding parameter value or an interleaver parameter value.   
     
     
         94 . The transceiver of  claim 93 , wherein the transceiver is further operable to measure the first impulse noise protection value and the second impulse noise value during initialization. 
     
     
         95 . The transceiver of  claim 93 , wherein the transceiver is further operable to measure the first impulse noise protection value and the second impulse noise value during Showtime. 
     
     
         96 . The transceiver of  claim 93 , wherein the transceiver is operable to transmit or receive a second message comprising the first impulse noise protection value. 
     
     
         97 . The transceiver of  claim 93 , wherein the transceiver is operable to transmit or receive a second message comprising the second impulse noise protection value. 
     
     
         98 . The transceiver of  claim 93 , wherein the at least one RS coding parameter value is a RS codeword size. 
     
     
         99 . The transceiver of  claim 93 , wherein the at least one RS coding parameter value is a number of RS codeword parity bytes. 
     
     
         100 . The transceiver of  claim 93 , wherein the at least one interleaver parameter value is an interleaver depth. 
     
     
         101 . The transceiver of  claim 93 , wherein the transceiver includes at least one digital signal processor. 
     
     
         102 . The transceiver of  claim 93 , wherein the transceiver includes at least one Application-Specific Integrated Circuit (ASIC). 
     
     
         103 . The transceiver of  claim 93 , further comprising connected elements including two or more of: a decoder, a deinterleaver, a Bit Error Rate detection module, a FEC and Interleaving Parameter module, an impulse noise length determination module, an impulse noise period determination module, an impulse noise parameter management module, an impulse noise protection adaptation module, a sync module, a message module, a controller, a memory, a digital signal processor and an ASIC. 
     
     
         104 . A method, in a multicarrier transceiver, the method comprising:
 determining at least one forward error correction parameter value based on:
 both a first impulse noise protection value associated with a repetition period of electrical impulse noise, and 
 a second impulse noise value associated with a length of impulse noise; and 
   transmitting the at least one forward error correction parameter value in a first message,   wherein the at least one forward error correction parameter value is a Reed Solomon (RS) Coding parameter value or an interleaver parameter value.   
     
     
         105 . The method of  claim 104 , further comprising measuring the first impulse noise protection value and the second impulse noise value during initialization. 
     
     
         106 . The method of  claim 104 , further comprising measuring the first impulse noise protection value and the second impulse noise value during Showtime. 
     
     
         107 . The method of  claim 104 , further comprising transmitting or receiving a second message comprising the first impulse noise protection value. 
     
     
         108 . The method of  claim 104 , further comprising transmitting or receiving a second message comprising the second impulse noise protection value. 
     
     
         109 . The method of  claim 104 , wherein the at least one RS coding parameter value is a RS codeword size. 
     
     
         110 . The method of  claim 104 , wherein the at least one RS coding parameter value is a number of RS codeword parity bytes. 
     
     
         111 . The method of  claim 104 , wherein the at least one interleaver parameter value is an interleaver depth.