Packet Recovery Transmission for Low-Latency Wireless Data

The patent applies preliminary action by generating error recovery packets in advance before actual data transmission. The encoding module creates redundant packets using forward error correction codes (such as Reed-Solomon or LDPC codes) based on the original data packets. These pre-generated recovery packets are stored and can be immediately used when packet loss occurs, eliminating the need for time-consuming retransmission operations and thus resolving the contradiction between reliability and transmission delay.

The patent introduces an intermediary mechanism by incorporating forward error correction encoding and decoding modules that work alongside the UDP protocol. The encoding module generates redundant error recovery packets from the original data, and the decoding module at the receiving end uses these recovery packets to reconstruct lost data. This intermediary error correction system enables UDP to achieve packet loss recovery capability while maintaining its low-latency characteristics, thus resolving the contradiction between transmission delay and reliability.

The patent applies local quality by dynamically adjusting the error recovery strategy based on network conditions and packet characteristics. The system generates error recovery packets selectively rather than uniformly for all data packets. When packet loss is detected in specific regions or under certain conditions, the decoding module uses the pre-generated recovery packets to reconstruct only the affected data portions. This localized approach to error recovery improves reliability where needed while minimizing unnecessary transmission overhead, thus resolving the contradiction between packet loss recovery capability and transmission overhead.