Adaptive VoIP Redundancy for Voice Quality and Capacity

The patent implements dynamic redundancy adaptation by continuously monitoring packet loss rates and adjusting redundancy coding activation accordingly. When packet loss rate exceeds a threshold, redundancy coding is activated to improve reliability; when packet loss rate is low, redundancy coding is deactivated to preserve voice quality. This dynamic switching resolves the contradiction by making the system adaptable to changing network conditions rather than using a fixed redundancy strategy.

The patent employs periodic monitoring of packet loss rates and periodic switching of redundancy coding based on threshold comparisons. Instead of continuous redundancy activation, the system periodically assesses network conditions and activates redundancy coding only during periods when packet loss exceeds the threshold. This periodic action allows the system to maintain voice quality during high packet loss periods while preserving system capacity during low packet loss periods.

The patent implements adaptive redundancy by monitoring key parameters (packet loss rate, buffer status, uplink activity) and changing the redundancy coding parameter (activation state) based on threshold comparisons. This parameter-based control approach provides adaptability through simple threshold logic rather than complex algorithms, allowing the system to optimize voice quality and capacity while minimizing the complexity of the monitoring and switching mechanism.