Data transmission method and device in wireless communication network

The invention discloses a data transmission method and device in a wireless communication network. The data transmission method in the wireless communication network comprises steps of choosing one transmission terminal node from K transmission terminal nodes when a reception end node receives the data reported by multiple transmission end nodes and the statistic result of data reported by K transmission end nodes satisfies one of the predetermined conditions, wherein K is an integer greater than 1, receiving the data which is transmitted subsequently by the chosen transmission end node by the reception end node, and notifying K-1 transmission end nodes which are not chosen of the optimized information and the data which is transmitted subsequently by the chosen transmission node by the reception end node, wherein the optimized information comprises the basis of the transmission end node for determining whether the subsequent data is transmitted. The data transmission method in the wireless communication network and device provide a wireless resource optimization technology in the data transmission having multiple transmission end nodes, and improves the usage efficiency for the wireless resource.