SYSTEMS AND METHODS FOR PRIORITIZATION OF DATA FOR INTELLIGENT DISCARD IN A COMMUNICATION NETWORK

摘要

Capacity and spectrum constrained, multiple-access communication systems optimize performance by selectively discarding packets. Changes in the communication systems may be driven using control responses. Control responses include intelligent discard of network packets under capacity constrained conditions. Packets are prioritized and discard decisions are made based on the prioritization. Various embodiments provide an interactive response by selectively discarding packets to enhance perceived and actual system throughput, provide a reactive response by selectively discarding data packets based on their relative impact to service quality to mitigate oversubscription, provide a proactive response by discarding packets based on predicted oversubscription, or provide a combination thereof. Packets may be prioritized for discard using correlations between discards and bandwidth reduction and quality degradation. The quality degradation for video packets may be measured objectively.

主权项

1. A base station for managing transmission of packets over a communication link in a communication network, the base station comprising:
a transmission module configured to transmit packets over the communication link; a video quality measurement module configured to obtain packets containing frames of a video stream from a backhaul port, the frames comprising multiple frame groups, and to determine estimated contributions of a discard of all frames of each frame group to at least one video quality measurement of the video stream; a priority assignment module configured to receive the estimated contributions of each frame group to the at least one quality measurement, to assign an allowable time in queue to each of the packets based at least on the estimated contribution of the frame groups associated with the frames in the respective packet, and to transfer the packets to a scheduler queue; and a selection module configured to detect that the depth of the scheduler queue has exceeded a level, and in the case that it is detected that the level is exceeded, to select at least one of the packets in the scheduler queue for discard utilizing the assigned allowable time in queue and to supply the packets in the scheduler queue not selected for discard to the transmission module for transmission over the communication link.