Bandwidth assignment for multi-line TDD systems

摘要

Transceiver node and method therein for enabling dynamic bandwidth assignment in bi-directional Time Division Duplexing (TDD) multicarrier communication over wire lines. The transceiver node is operable to be coupled to a plurality of loops, wherein each loop is terminated by a respective network terminal (NT). The method comprises collecting traffic reports from local and remote queues associated with uplink and downlink traffic on the plurality of loops, and determining an actual demand for upstream and downstream bandwidth, respectively, for each of the plurality of loops, based on the collected traffic reports. The method further comprises deriving an Upstream/Downstream (US/DS) frame partitioning based on the determined actual demand for upstream and downstream bandwidth, and providing an indication of the derived US/DS frame partitioning to the NTs. NTs are then scheduled in accordance with the derived partitioning.

主权项

1. A method performed by a transceiver node, operable to provide bi-directional Time Division Duplexing (TDD) multicarrier communication over wire lines, the transceiver node being coupled to a plurality of loops, wherein each loop is terminated by a respective network terminal (NT), the method comprising:
collecting traffic reports from local and remote queues associated with uplink and downlink traffic on the plurality of loops, wherein a queue from the queues is associated with a configured traffic profile related to upstream or downstream rates, and wherein the configured traffic profile includes a traffic contract component related to an assured rate, wherein the assured rate is a rate that is guaranteed to be provided on a loop when needed and that can be granted to other transmit directions of the loop or other loops when the loop is not fully utilizing the assured rate; determining an actual demand for upstream and downstream bandwidth, respectively, for each of the plurality of loops, based on the collected traffic reports; deriving an Upstream/Downstream (US/DS) frame partitioning based on the determined actual demand for upstream and downstream bandwidth and the configured traffic profile; providing an indication of the derived US/DS frame partitioning to the NTs; and scheduling NTs in accordance with the derived US/DS frame partitioning.