Defect propagation of multiple signals of various rates when mapped into a combined signal

Patent metadata

Field	Value
Publication number	US-9337959-B2
Application number	US-201314053032-A
Country	US
Kind code	B2
Filing date	Oct 14, 2013
Priority date	Oct 14, 2013
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

Systems and methods for detecting defect propagation in a networked environment comprising a defect detection component to detect defects in an aggregate signal and/or in individual signals; and a replacement signal component to generate a maintenance signal to replace defective signals detected by the defect detection component. The maintenance signal can be a uniform signal type regardless of a type associated with a defective signal. The maintenance signal can replace a defective signal during aggregation, by an aggregation component. In another aspect, the maintenance signal can replace the defective signal during de-aggregation

First claim

What is claimed is:

1. A system, comprising:
a memory storing computer executable components; and
a processor configured to execute the following computer executable components stored in the memory:
a defect detection component configured for detecting a defect associated with a first signal;
a replacement signal component configured for:
determining a frequency associated with the first signal;
generating a maintenance signal based on the frequency associated with the first signal in response to the defect detection component detecting the defect in the first signal; and
replacing the first signal with the maintenance signal; and

an aggregation component configured for aggregating the maintenance signal and a second signal into an aggregate signal for transmission at another frequency that is different than the frequency associated with the first signal.

2. The system of claim 1 , wherein the first signal is comprised in a plurality of signals associated with a plurality of client signals.

3. The system of claim 2 , wherein the replacement signal component is further configured for replacing the first signal without altering disparate signals of the plurality of signals.

4. The system of claim 1 , wherein the aggregation component is further configured for formatting the aggregate signal in a signal format that is different than another signal format associated with the first signal.

5. The system of claim 1 , wherein the aggregation component is further configured for reformatting the second signal and the maintenance signal such that a data rate of the aggregate signal is disparate from a data rate of the second signal.

6. The system of claim 1 , wherein the replacement signal component is further configured for generating the maintenance signal with a pseudo-random sequence.

7. The system of claim 1 , wherein the replacement signal component is further configured for generating a pseudo random noise 11 (PN- 11 ) signal as the maintenance signal.

8. The system of claim 7 , wherein the replacement signal component is further configured for generating the PN- 11 signal within a frequency range based on a frequency range of the first signal.

9. The system of claim 1 , further comprising a de-aggregation component configured for de-aggregating the first signals from the aggregate signal.

10. The system of claim 9 , wherein the defect detection component is further configured for detecting the defect during the de-aggregation, and wherein the replacement signal component is configured for replacing the first signal with the maintenance signal during the de-aggregation.

11. The system of claim 1 , wherein replacement signal component is further configured for generating the maintenance signal based on a client device associated with the first signal.

12. The system of claim 1 , wherein the defect detection component is further configured for, in response to determining the first signal is a tributary signal, replacing a second signal tributary associated with the first signal, with the maintenance signal.

13. The system of claim 1 , wherein the defect detection component is configured for detecting a clock abnormality associated with the first signal.

14. A method for propagating signal defects, comprising:
detecting, by a system comprising at least one processor, a defect in a first signal;
determining, by the system, a frequency associated with the first signal;
generating, by the system, a maintenance signal based on the frequency associated with the first signal in response to detecting the defect;
replacing, by the system, the first signal with the maintenance signal; and
generating an aggregate signal for transmission at another frequency that is different than the frequency associated with the first signal by aggregating the maintenance signal and a second signal.

15. The method of claim 14 , further comprising generating the maintenance signal based on a pseudo-random sequence.

16. The method of claim 14 , wherein replacing the first signal with the maintenance signal further comprises generating a pseudo noise 11 (PN-11) type signal.

17. The method of claim 14 , wherein replacing the signal further comprises:
mapping the maintenance signal and a set of the plurality of client signals into container signals based at least in part on an interleaving distribution pattern.

18. The method of claim 14 , further comprising:
de-aggregating, by the system, a plurality of signals, wherein the plurality of signals are comprised in the aggregate signal.

19. The method of claim 14 , wherein the generating further comprises generating the maintenance signal as a function of a client signal associated with the maintenance signal.

20. A non-transitory computer readable storage medium comprising computer-executable instruction that, in response to execution, cause a system including at least one processor to perform operations, comprising:
receiving signals associated with client signals;
detecting a defective signal of the received signals;
determining a data rate associated with the defective signal;
generating a pseudo random noise signal based on the data rate associated with the defective signal;
replacing the defective signal with the generated pseudo random noise signal; and
aggregating a first set of the signals and the generated pseudo random noise signal into an aggregate signal, such that the aggregate signal comprises a uniform data rate that is disparate from the data rate associated with the defective signal.

21. The non-transitory computer storage medium of claim 20 , the operations further comprising:
de-aggregating the aggregate signal into a second set of signals associated with the client signals.

22. The non-transitory computer storage medium of claim 21 , the operations further comprising:
replacing, in response to the de-aggregating, a signal of the second set of signals with a client specific maintenance signal that is generated according to a client type associated with the signal.

23. The non-transitory computer storage medium of claim 20 , the operations further comprising:
detecting the defective signal comprised in the aggregate signal.

24. The non-transitory computer storage medium of claim 23 , the operations further comprising:
mapping the generated pseudo random noise signal into the aggregate signal.

Assignees

• Applied Micro Circuits Corp

Inventors

• Caggioni Francesco
• Giannakopoulos Dimitrios

Classifications

• H04L1/0045

  Arrangements at the receiver end · CPC title

• H04J14/0294

  Dedicated protection at the optical channel (1+1) · CPC title

• H04B10/07

  Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems · CPC title

• H04J3/14

  Monitoring arrangements {(for SDH/SONET rings H04J3/085)} · CPC title

• H04J3/1611

  Synchronous digital hierarchy [SDH] or SONET (H04J3/1664 takes precedence for interactions with OTN) · CPC title