The UE determines that the information of the TTI duration of the fourth data is 0.125 ms, and then the UE acquires corresponding two SRs and transmits 2 SRs configured to schedule the fourth data on a PUCCH resource determined by two SRs. The gNB receives the 2 SRs, queries the mapping relationship to acquire that the TTI duration corresponding to two SRs is 0.125 ms, determines a fourth licensed resource according to the acquired TTI duration 0.125 ms and sends a fourth resource scheduling instruction containing indication information of the fourth licensed resource to the UE.