Management system and methods of managing time-division duplex (TDD) transmission over copper
AssigneeAssia Spe, LLC
InventorsKenneth Kerpez, Georgios Ginis, Marc Goldburg, Ardavan Maleki Tehrani
Life of this patent
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Abstract
Time division duplex transmission over copper physical channels is managed. In one example, upstream time slots for upstream transmission in a first physical channel are scheduled. Downstream time slots for downstream transmission in a second physical channel are scheduled. Transmission in the upstream time slots is substantially not simultaneous with transmission in the downstream time slots.
Claims24
A method in a data communications system for managing multiple physical channels that are subject to crosstalk, the method comprising:
- scheduling upstream time slots for upstream transmission in a first physical channel;
- and
- scheduling downstream time slots for downstream transmission in a second physical channel;
- wherein during a portion of the upstream and downstream time slots, downstream transmission is simultaneous with upstream transmission;
- and
- wherein near-end crosstalk (NEXT) cancellation at a network end of the channels reduces NEXT from downstream signals into upstream signals during the portion of the upstream and downstream time slots when downstream transmission is simultaneous with a portion of upstream transmission.
A method in a data communications system for managing multiple time division physical channels that are subject to crosstalk, the method comprising:
- scheduling upstream time slots for upstream transmission in a first physical channel;
- scheduling downstream time slots for downstream transmission in a second physical channel wherein downstream transmission is simultaneous with upstream transmission, and wherein near-end crosstalk (NEXT) cancellation at a network end of the channels reduces NEXT from downstream signals into upstream signals during a portion of the upstream and downstream time slots when downstream transmission is simultaneous with a portion of upstream transmission;
- and time-slot boundaries are dynamically set and update the scheduling of the upstream time slots and the scheduling of the downstream time slots.
Dependencies are inferred from the claim text.