IP Library Granted Patent US 10,312,966
Granted Patent B2
US 10,312,966 · App. 14/575,942 · Granted Jun 4, 2019

Methods and systems for reducing crosstalk for sets of lines

Inventors: Carl J. Nuzman (Union, NJ); Paschalis Tsiaflakis (Schriek, BE)
Assignees: NOKIA OF AMERICA CORPORATION; ALCATEL LUCENT
H04B3/32H04M3/007
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Quick Facts
Patent No.
US 10,312,966
App. No.
14/575,942
Granted
Jun 4, 2019
Kind
B2
Abstract

At least one example embodiment discloses a method including determining a first set of lines and a second set of lines in a system, obtaining signals to be transmitted over, or received from, the first set of lines and the second set of lines, obtaining normal operation interval (NOI) vectoring coefficients for the second set of lines, determining discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix and jointly processing the signals for a discontinuous operation interval using the vectoring matrix.

Claims (51)

1. A method comprising:

determining a first set of lines and a second set of lines in a system;

receiving signals from the first set of lines and the second set of lines;

obtaining normal operation interval (NOI) vectoring coefficients for the second set of lines;

determining discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix; and

jointly processing the signals for a discontinuous operation interval using the vectoring matrix.

2. The method of claim 1 , wherein the first set of lines is associated with a higher vectoring performance than the second set of lines.

3. The method of claim 1 , wherein the determining determines the first and second sets of lines based on at least one of a traffic load of the system and static data rate values associated with the lines in the first and second sets of lines, respectively.

4. The method of claim 1 , wherein the NOI vectoring coefficients and the DOI vectoring coefficients are postcoder coefficients and the vectoring matrix is a postcoding matrix.

5. The method of claim 4 , wherein the postcoding matrix includes a (|B|+|A|)×|B| submatrix for the discontinuous operation interval, where |B| is a number of the first set of lines corresponding to the DOI postcoder coefficients and |A| is a number of the second set of lines corresponding to the NOI postcoder coefficients.

6. The method of claim 5 , further comprising:

storing the (|B|+|A|)×|B|submatrix in a memory storage medium.

7. An access node comprising:

a memory storage medium including computer-readable instructions; and

a processor configured to execute the computer-readable instructions to cause the access node to,

determine a first set of lines and a second set of lines in a system;

receive signals from, the first set of lines and the second set of lines;

obtain normal operation interval (NOI) vectoring coefficients for the second set of lines;

determine discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix; and

jointly process the signals for a discontinuous operation interval using the vectoring matrix.

8. The access node of claim 7 , wherein the first set of lines is associated with a higher vectoring performance than the second set of lines.

9. The access node of claim 7 , wherein the processor is configured to execute the computer-readable instructions to cause the access node to determine the first and second sets of lines based on at least one of a traffic load of the system and static data rate values associated with the lines in the first and second sets of lines, respectively.

10. The access node of claim 7 , wherein the NOI vectoring coefficients and the DOI vectoring coefficients are postcoder coefficients and the vectoring matrix is a postcoding matrix.

11. The access node of claim 10 , wherein the postcoding matrix includes a (|B|+|A|)×|B| submatrix for the discontinuous operation interval, where |B|is a number of the first set of lines corresponding to the DOI postcoder coefficients and |A|is a number of the second set of lines corresponding to the NOI postcoder coefficients.

12. The access node of claim 11 , the processor is configured to execute the computer-readable instructions to cause the access node to store the (|B|+|A|)×|B| submatrix in the memory storage medium.

13. A method comprising:

determining a first set of lines and a second set of lines in a system;

obtaining signals to be transmitted over the first set of lines and the second set of lines;

obtaining normal operation interval (NOI) vectoring coefficients for the second set of lines;

determining discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix;

jointly processing the signals for a discontinuous operation interval using the vectoring matrix; and

transmitting the jointly processed signals.

14. The method of claim 13 , wherein the vectoring matrix includes a |B|×(|B|+|A|) submatrix for the discontinuous operation interval, where |B| is a number of the first set of lines corresponding to the DOI vectoring coefficients and |A| is a number of the second set of lines corresponding to the NOI vectoring coefficients.

15. The method of claim 14 , further comprising:

storing the |B|×(|B|+|A|)submatrix in a memory storage medium.

16. The method of claim 13 , wherein the first set of lines is associated with a higher vectoring performance than the second set of lines.

17. The method of claim 13 , wherein the determining determines the first and second sets of lines based on at least one of a traffic load of the system and static data rate values associated with the lines in the first and second sets of lines, respectively.

18. An access node comprising:

a memory storage medium including computer-readable instructions; and

a processor configured to execute the computer-readable instructions to cause the access node to,

determine a first set of lines and a second set of lines in a system;

obtain signals to be transmitted over, or received from, the first set of lines and the second set of lines;

obtain normal operation interval (NOI) vectoring coefficients for the second set of lines;

determine discontinuous operation interval (DOI) vectoring coefficients for the first set of lines, the DOI vectoring coefficients for the first set of lines and the NOI vectoring coefficients for the second set of lines being part of a vectoring matrix;

jointly process the signals for a discontinuous operation interval using the vectoring matrix; and

transmit the jointly processed signals.

19. The access node of claim 18 , wherein the vectoring matrix includes a |B|×(|B|+|A|) submatrix for the discontinuous operation interval, where |B| is a number of the first set of lines corresponding to the DOI vectoring coefficients and |A|is a number of the second set of lines corresponding to the NOI vectoring coefficients.

20. The access node of claim 19 , wherein the processor is configured to execute the computer-readable instructions to cause the access node to store the |B|×(|B|+|A|) submatrix in the memory storage medium.

21. The access node of claim 18 , wherein the first set of lines is associated with a higher vectoring performance than the second set of lines.

22. The access node of claim 18 , wherein the processor is configured to execute the computer-readable instructions to cause the access node to determine the first and second sets of lines based on at least one of a traffic load of the system and static data rate values associated with the lines in the first and second sets of lines, respectively.

23. The access node of claim 18 , wherein the NOI vectoring coefficients and the DOI vectoring coefficients are precoder coefficients and the vectoring matrix is a precoding matrix.

Assignments (4)
CHANGE OF NAME Recorded Mar 19, 2019
From: ALCATEL-LUCENT USA INC.
To: NOKIA OF AMERICA CORPORATION
Reel/Frame 048634/0753 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2017
From: ALCATEL-LUCENT BELL N.V.
To: ALCATEL LUCENT
Reel/Frame 041986/0670 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2015
From: TSIAFLAKIS, PASCHALIS
To: ALCATEL-LUCENT BELL N.V.
Reel/Frame 035891/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2015
From: NUZMAN, CARL J
To: ALCATEL-LUCENT USA INC.
Reel/Frame 035891/0366 →
Continuity (1)
Related Publication 20160182122A1 · Jun 23, 2016