QoS for Single Stream ICA via Average Priority Filtering

The patent applies dynamics by making the retransmission window adaptive rather than static. The retransmission window size is dynamically adjusted based on the observed reordering frequency and packet priority levels. When reordering is detected, the window expands to accommodate out-of-order packets; when reordering is rare, the window contracts to minimize latency. This dynamic adaptation resolves the contradiction by allowing the system to maintain reliability through selective retransmission while reducing unnecessary latency caused by overly conservative constant window sizes.

The patent applies local quality by assigning different effective priority levels to different packets within the same connection based on their individual characteristics and current network conditions. Instead of uniformly assigning maximum priority to all packets in a connection, the system evaluates each packet's priority level and applies priority-based scheduling selectively. This allows interactive packets to receive preferential treatment while bulk transfer packets maintain normal scheduling, resolving the contradiction between reducing interactive latency and maintaining bulk transfer productivity.

The patent applies feedback by continuously monitoring packet delivery patterns, reordering frequency, and acknowledgment responses to dynamically adjust the retransmission strategy. The system uses feedback from the network environment to determine when out-of-order delivery is safe to implement and when to revert to in-order delivery to avoid unnecessary retransmissions. This feedback mechanism resolves the contradiction by enabling QoS improvements through intelligent packet reordering while minimizing bandwidth waste through adaptive retransmission control based on actual network conditions.