Connected Home Controller Video Stream Network Selection

The patent implements dynamic TCP parameter adjustment based on network conditions. The system continuously monitors wireless network quality metrics (signal strength, packet loss rate, round-trip time) and dynamically modifies TCP parameters such as retransmission timeout values, window size, and congestion control thresholds. This allows the system to adapt TCP behavior to current RF conditions, reducing unnecessary retransmissions in poor conditions while maintaining reliability when conditions improve.

The patent changes physical and operational parameters of TCP to optimize performance for video delivery. Specifically, it modifies TCP retransmission parameters (timeout intervals, retry counts), congestion control parameters (window size, threshold values), and flow control parameters based on measured network conditions. These parameter changes enable the system to balance reliability and bandwidth efficiency by adjusting retransmission aggressiveness according to actual wireless quality.

The patent applies different congestion control strategies to different network conditions. Instead of using a uniform slow-start algorithm, the system implements localized congestion control behavior based on the specific cause of packet loss. When packet loss is detected, the system analyzes whether it stems from congestion or poor RF quality using metrics like signal strength and error patterns. For non-congestion loss, the system disables or reduces slow-start retransmission behavior, allowing video delivery to continue with degraded but acceptable performance rather than stalling completely.

The patent dynamically switches between different congestion control modes based on real-time network condition assessment. The system monitors multiple parameters (packet loss rate, signal strength, round-trip time variability) and dynamically adjusts the aggressiveness of congestion control. When poor RF quality is detected, the system reduces congestion control intervention to prevent unnecessary video stream interruptions, while maintaining active congestion control when network conditions indicate actual congestion.