Impulse noise management
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. A transceiver comprising:
a transmitter operable to be configured with a first impulse noise protection setting;
the transmitter further operable to enter into Showtime with the first impulse noise protection (INP) setting;
the transmitter further operable to be configured during Showtime with a second impulse noise protection setting;
the transmitter further operable to transmit a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
the transmitter further operable to switch during Showtime from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
2. The transceiver of claim 1 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one Forward Error Correction (FEC) codeword parameter value.
3. The transceiver of claim 1 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
4. The transceiver of claim 1 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
5. The transceiver of claim 1 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.
6. A transceiver comprising:
a receiver operable to be configured with a first impulse noise protection setting;
the receiver further operable to enter into Showtime with the first impulse noise protection (INP) setting;
the receiver further operable to be configured during Showtime with a second impulse noise protection setting;
the receiver further operable to receive a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
the receiver further operable to switch during Showtime from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
7. The transceiver of claim 6 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one Forward Error Correction (FEC) codeword parameter value.
8. The transceiver of claim 6 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
9. The transceiver of claim 6 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
10. The transceiver of claim 6 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.
11. A method to operate a transceiver comprising:
configuring a transmitter with a first impulse noise protection setting;
entering, by the transmitter, into Showtime with the first impulse noise protection (INP) setting;
configuring during Showtime, the transmitter with a second impulse noise protection setting;
transmitting a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
switching during Showtime from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
12. The method of claim 11 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one Forward Error Correction (FEC) codeword parameter value.
13. The method of claim 11 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
14. The method of claim 11 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
15. The method of claim 11 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.
16. A method to operate a transceiver comprising:
configuring a receiver with a first impulse noise protection setting;
entering, by the receiver, into Showtime with the first impulse noise protection (INP) setting;
configuring the receiver during Showtime with a second impulse noise protection setting;
receiving a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
switching, during Showtime, from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
17. The method of claim 16 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one Forward Error Correction (FEC) codeword parameter value.
18. The method of claim 16 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
19. The method of claim 16 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
20. The method of claim 16 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.
21. A non-transitory computer-readable information storage media having stored thereon instructions, that when executed, perform a method to operate a transceiver comprising:
configuring a transmitter with a first impulse noise protection setting;
entering, by the transmitter, into Showtime with the first impulse noise protection (INP) setting;
configuring, during Showtime, the transmitter with a second impulse noise protection setting;
transmitting a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
switching during Showtime from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
22. The non-transitory computer-readable information storage media of claim 21 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one FEC codeword parameter value.
23. The non-transitory computer-readable information storage media of claim 21 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
24. The non-transitory computer-readable information storage media of claim 21 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
25. The non-transitory computer-readable information storage media of claim 21 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.
26. A non-transitory computer-readable information storage media having stored thereon instructions, that when executed, perform a method to operate a transceiver comprising:
configuring a receiver with a first impulse noise protection setting;
entering, by the receiver, into Showtime with the first impulse noise protection (INP) setting;
configuring the receiver during Showtime with a second impulse noise protection setting;
receiving a message during Showtime, wherein the message indicates the second impulse noise protection setting, different than the first impulse noise protection setting; and
switching, during Showtime, from the first impulse noise protection setting to the second impulse noise protection setting,
wherein the message comprises a counter value that indicates when the switch will occur.
27. The non-transitory computer-readable information storage media of claim 26 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one Forward Error Correction (FEC) codeword parameter value.
28. The non-transitory computer-readable information storage media of claim 26 , wherein the switch from the first impulse noise protection setting to second impulse noise setting comprises changing at least one interleaver parameter value.
29. The non-transitory computer-readable information storage media of claim 26 , wherein the switch from the first impulse noise protection setting to second impulse noise setting is seamless.
30. The non-transitory computer-readable information storage media of claim 26 , wherein the counter value is a counter of Forward Error Correction (FEC) codewords.