Patent ID: 6526062
Filing Date: 2003-02-25
Classification: H04L

Abstract:
A method for scheduling the transmission of packet objects, each packet object having at least one cell and associated with a logical channel identifier (LCI) identifying the logical channel over which the packet object is being transmitted, comprising the steps of:determining whether an LCI is scheduled to be transmitted at a current time; transmitting at the current time a cell of a packet object corresponding to the LCI scheduled for transmission at the current time according to a priority associated with a traffic type of the LCI, at least one of the traffic types being a predetermined traffic type; and rescheduling an LCI of the predetermined traffic type to a queue time (QT), which corresponds to a transmission time later than the current time, when at least one cell remains for the LCI of the predetermined traffic type scheduled for transmission at the current time wherein the rescheduling step comprises: determining a scheduled departure time (SDT) by calculating a first time as the sum of a theoretical departure time (TDT) and a first increment, calculating a second time as the sum of a previously calculated SDT and a second increment, and selecting one of the first and second times having the later time as the determined SDT; and setting the QT as the later time of the determined SDT and the transmission time immediately after the current time, wherein the next theoretical departure time is calculated as the sum of the prior value of TDT and a third increment.