# US 10,312,966 B2 · Methods and systems for reducing crosstalk for sets of lines > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,966 B2 - Document ID: US10312966B2 - Status: Granted - Kind: B2 - Application number: 14/575,942 - Filed: 2014-12-18 - Published: 2016-06-23 - Granted: 2019-06-04 - Earliest claimed: 2014-12-18 - Assignees: Nokia of America Corporation; Alcatel Lucent - Applicants: Carl J. Nuzman; Paschalis Tsiaflakis - Inventors: Carl J. Nuzman; Paschalis Tsiaflakis - Web page: https://patentgrep.com/patent/US10312966B2 ## CPC - H04B 3/32: Reducing cross-talk, e.g. by compensating - H04B: TRANSMISSION ## 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 ### Claim 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. ### Claim 2 (depends on 1) The method of claim 1, wherein the first set of lines is associated with a higher vectoring performance than the second set of lines. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) 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. ### Claim 5 (depends on 4) 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. ### Claim 6 (depends on 5) The method of claim 5, further comprising: storing the (|B|+|A|)×|B|submatrix in a memory storage medium. ### Claim 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. ### Claim 8 (depends on 7) 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. ### Claim 9 (depends on 7) 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. ### Claim 10 (depends on 7) 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. ### Claim 11 (depends on 10) 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. ### Claim 12 (depends on 11) 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. ### Claim 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. ### Claim 14 (depends on 13) 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. ### Claim 15 (depends on 14) The method of claim 14, further comprising: storing the |B|×(|B|+|A|)submatrix in a memory storage medium. ### Claim 16 (depends on 13) The method of claim 13, wherein the first set of lines is associated with a higher vectoring performance than the second set of lines. ### Claim 17 (depends on 13) 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. ### Claim 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. ### Claim 19 (depends on 18) 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. ### Claim 20 (depends on 19) 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. ### Claim 21 (depends on 18) 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. ### Claim 22 (depends on 18) 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. ### Claim 23 (depends on 18) 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.