METHOD AND APPARATUS FOR MANAGING PROCESSING IN TDD FRAMES TO ENABLE POWER DISSIPATION REDUCTION

摘要

The present invention relates to methods and apparatuses for managing the time slots in time division duplex (TDD) frames in an xDSL system. According to certain aspects, power savings in a TDD system operating with vectoring may be achieved with sending of quiet symbols in time slots that do not have data and through the efficient configuration of time slots with data and/or idle symbols so as to limit the amount of processing by the vectoring engine within the DO portion of each TDD frame. In embodiments, a central controller in a DPU monitors the data buffers at the transmitter input on each line and computes an optimal configuration of the time slots in the DO portion of the TDD frame to achieve an optimal balance between performance and power dissipation.

主权项

1. A method for managing time slots for two or more lines in a time division duplex (TDD) frame, comprising:
configuring a number of time slots for a normal operation portion of the TDD frame for all of the two or more lines; configuring a first number of time slots for quiet symbols and a second number of time slots for data symbols in the TDD frame after the normal operation portion for a first one of the two or more lines; and configuring a third number of time slots for quiet symbols and a fourth number of time slots for data symbols in the TDD frame after the normal operation portion for a second one of the two or more lines, wherein one or both of the first and second numbers are different than the third and fourth numbers, respectively.