Patent ID: 8472316
Filing Date: 2013-06-25
Classification: H04L,H04W

Abstract:
1. A method of controlling a data packet queue in a transmission link in a communication system, the queue storing a plurality of received data packets intended for transmission over a wireless interface, the method comprising: discarding selected packets from the queue without the selected packets having been transmitted, wherein a packet is selected depending on at least a length of time the packet has been stored in the queue, and a selected packet is discarded on condition that at least a predetermined time period has elapsed since a previous discarding of a packet has taken place, and a packet is selected and discarded by at least: calculating a time period since a packet was last discarded from the queue without having been transmitted; for each packet of at least a subset of the packets in the queue, calculating a time period during which the packet has been stored in the queue; and for each packet of the subset, discarding the packet if the time period during which the packet has been stored in the queue is larger than a first threshold and the time period since a packet was last discarded from the queue without having been transmitted is larger than a second threshold value, the first threshold being different from the second threshold.