Impulse noise management

• US 8,462,835 B2
• Filed: 04/28/2010
• Issued: 06/11/2013
• Est. Priority Date: 03/03/2004
• Status: Active Grant

• Current Assignee: TQ Delta LLC (Techquity Capital Management, LLC)
• Original Assignee: TQ Delta LLC (Techquity Capital Management, LLC)
• Inventors: Tzannes, Marcos C.
• Primary Examiner(s): Corrielus, Jean B
• Application Number:
  US12/769,193
• Publication Number:
  US 20100220771A1
• Time in Patent Office: 1,140 Days
• Field of Search: 375/219, 375/224, 375/285, 375/346, 714/774, 714/786
• US Class Current: 375/219
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0015 characterised by the adaptation strategy
• CPC Class Codes: H04L 1/0023 characterised by the signalling
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling

Abstract

Evaluation of the impact of impulse noise on a communication system can be utilized to determine how the system should be configured to adapt to impulse noise events. Moreover, the system allows for information regarding impulse noise events, such as length of the event, repetition period of the event and timing of the event, to be collected and forwarded to a destination. The adaptation can be performed during one or more of Showtime and initialization, and can be initiated and determined at either one or more of a transmitter and a receiver.

Claims

1. In a transceiver, a method of adapting forward error correction and interleaver parameter (FIP) settings of the transceiver during steady-state communication or initialization comprising:

transmitting, by the transceiver, a signal using a first FIP setting;

transmitting, by the transceiver, a flag signal; and

switching, by the transceiver, to using, for transmitting, a second FIP setting following transmission of the flag signal,

wherein;

the first FIP setting comprises at least one first FIP value,

the second FIP setting comprises at least one second FIP value, different than the first FIP value, and

the switching occurs on a pre-defined forward error correction codeword boundary following the flag signal.

2. The method of claim 1, wherein a first forward error correction parameter value of the first FIP setting is different than a second forward error correction parameter value of the second FIP setting.

3. The method of claim 1, wherein a first interleaver parameter value of the first FIP setting is different than a second interleaver parameter value of the second FIP setting.

4. The method of claim 1, wherein the adapting of the FIP settings is based on a service provider configuration.

5. The method of claim 1, further comprising transmitting the flag signal on a telephone line that experiences impulse noise from external sources including one or more of AM radio, HAM radio and AC power lines.

6. The method of claim 1, wherein the method is performed in a linecard that includes a management interface that is used by an operator or service provider to configure a service.

7. The method of claim 1, wherein the method is performed in a Customer Premises Equipment (CPE) that includes a management interface that is used by an operator, a service provider or service user.

8. An apparatus configurable to adapt forward error correction and interleaver parameter (FIP) settings during steady-state communication or initialization comprising:

a transceiver, including a processor, configurable to;

transmit a signal using a first FIP setting,

transmit a flag signal, and

switch to using for transmission, a second FIP setting following transmission of the flag signal,

wherein;

the first FIP setting comprises at least one first FIP value,

the second FIP setting comprises at least one second FIP value, different than the first FIP value, and

the switching occurs on a pre-defined forward error correction codeword boundary following the flag signal.

9. The apparatus of claim 8, wherein a first forward error correction parameter value of the first FIP setting is different than a second forward error correction parameter value of the second FIP setting.

10. The apparatus of claim 8, wherein a first interleaver parameter value of the first FIP setting is different than a second interleaver parameter value of the second FIP setting.

11. The apparatus of claim 8, wherein the adapting of the FIP settings is based on a service provider configuration.

12. The apparatus of claim 8, wherein the transceiver is operable to transmit the flag signal on a telephone line that experiences impulse noise from external sources including one or more of AM radio, HAM radio and AC power lines.

13. The apparatus of claim 8, wherein the transceiver is located in a linecard that includes a management interface that is usable by an operator or service provider to configure a service.

14. The apparatus of claim 8, wherein the transceiver is located in a Customer Premises Equipment (CPE) that includes a management interface that is usable by an operator, a service provider or service user.

15. The apparatus of claim 8, wherein the transceiver includes at least one digital signal processor.

16. The apparatus of claim 8, wherein the transceiver includes at least one ASIC.

17. In a transceiver, a method of adapting forward error correction and interleaver parameter (FIP) settings of the transceiver during steady-state communication or initialization comprising:

receiving, by the transceiver, a signal using a first FIP setting;

receiving, by the transceiver, a flag signal; and

switching, by the transceiver, to using, for receiving, a second FIP setting following reception of the received flag signal,

wherein;

the first FIP setting comprises at least one FIP value,

the second FIP setting comprises at least one second FIP value, different than the first FIP value, and

the switching occurs on a pre-defined forward error correction codeword boundary following the flag signal.

18. The method of claim 17, wherein a first forward error correction parameter value of the first FIP setting is different than a second forward error correction parameter value of the second FIP setting.

19. The method of claim 17, wherein a first interleaver parameter value of the first FIP setting is different than a second interleaver parameter value of the second FIP setting.

20. The method of claim 17, wherein the adapting of the FIP settings is based on a service provider configuration.

21. The method of claim 17, further comprising receiving the flag signal over a telephone line that experiences impulse noise from external sources including one or more of AM radio, HAM radio and AC power lines.

22. The method of claim 17, wherein the method is performed in a linecard that includes a management interface that is used by an operator or service provider to configure a service.

23. The method of claim 17, wherein the method is performed in a Customer Premises Equipment (CPE) that includes a management interface that is used by an operator, a service provider or service user.

24. An apparatus configurable to adapt forward error correction and interleaver parameter (FIP) settings during steady-state communication or initialization comprising:

a transceiver, including a processor, configurable to;

receive a signal using a first FIP setting,

receive a flag signal, and

switch to using for reception, a second FIP setting following reception of the flag signal,

wherein;

the first FIP setting comprises at least one first FIP value,

the second FIP setting comprises at least one second FIP value, different than the first FIP value, and

the switching occurs on a pre-defined forward error correction codeword boundary following the flag signal.

25. The apparatus of claim 24, wherein a first forward error correction parameter value of the first FIP setting is different than a second forward error correction parameter value of the second FIP setting.

26. The apparatus of claim 24, wherein a first interleaver parameter value of the first FIP setting is different than a second interleaver parameter value of the second FIP setting.

27. The apparatus of claim 24, wherein the adapting of the FIP settings is based on a service provider configuration.

28. The apparatus of claim 24, wherein the transceiver is operable to receive the flag signal over a telephone line that experiences impulse noise from external sources including one or more of AM radio, HAM radio and AC power lines.

29. The apparatus of claim 24, wherein the transceiver is located in a linecard that includes a management interface that is usable by an operator or service provider to configure a service.

30. The apparatus of claim 24, wherein the transceiver is located in a Customer Premises Equipment (CPE) that includes a management interface that is usable by an operator, a service provider or service user.

31. The apparatus of claim 24, wherein the transceiver includes at least one digital signal processor.

32. The apparatus of claim 24, wherein the transceiver includes at least one ASIC.