-2000 DBWRR CELL SCHEDULING DEVICE AND METHOD THEREOF IN IMT-2000 ATM SWITCH

摘要

The present invention provides an apparatus and method for DVR cell scheduling in an ATM switch in an IMT-2000 system, and more particularly, to satisfy processing requirements for cell transmission delay of real-time traffic in a high-speed ATM switch and to minimize processing overhead. The present invention relates to an apparatus and method for DVR cell scheduling in an ATM exchanger in an IMT-2000 system. According to the present invention, an apparatus for and method for scheduling DVR cell in an ATM exchanger in an IMT-2000 system is provided. By managing the grouping by link according to the ATM scheduling cycle, processing overhead can be reduced compared to the conventional WRR / DRR cell scheduling method that manages by cell. In addition, the latency time of the input buffer among the cells stored in the input buffer is increased. Cell exceeded transmission delay By disposing of these devices, it is possible to reduce the probability that other cells will violate cell transmission delay requirements, thereby effectively avoiding unnecessary resource waste.