Industrial wireless uplink retransmission method for high-reliability communication

The invention relates to an industrial wireless network technology, in particular to an industrial wireless uplink retransmission method for high-reliability communication. The method is suitable for a star topology network formed by gateways and field devices. According to the invention, a novel superframe structure is constructed, and flexible switching between an on-demand retransmission mode and a cyclic retransmission mode is supported; considering the heterogeneous channel condition, the two retransmission modes are combined with the time slot frequency hopping technology, the channel diversity is fully utilized, and meanwhile, the fairness of transmission between devices is ensured. When data is retransmitted, the gateway dynamically selects a retransmission mode according to a reliability analysis result so as to improve the use efficiency of communication resources, and finally, the uplink reliable transmission of the network can be realized. 本发明涉及工业无线网络技术，具体地说是一种面向高可靠通信的工业无线上行重传方法。本方法适用于由网关和现场设备构成的星