With reference to the fifth aspect, in a seventh possible implementation of the fifth aspect, that the processor obtains L resources according to the N available resources specifically includes obtaining the L resources after performing an operation on the N available resources by using a preset rule.
With reference to the fifth aspect, in an eighth possible implementation of the fifth aspect, the data sent by the transmitter to the at least one UE is new data obtained after original data is discarded, or is the original data.
With reference to the fifth aspect, in a ninth possible implementation of the fifth aspect, that T is determined according to at least one of a quantity N of available resources, a quantity N-S of unavailable resources, a proportion N/S of the available resources, a quantity c of conflicts of the first UE, a conflict time w, a service priority Q of the first UE, or a priority of the first UE specifically includes if the quantity c of conflicts of the first UE is greater than the threshold C0, the conflict time w of the first UE is greater than the threshold W0, or the service priority Q of the first UE or the priority of the UE is higher than the threshold Q0, the preset duration T is equal to 0, or the preset duration T is T=f(x), where x is one of N, N-S, N/S, the service priority Q of the first UE, the priority of the UE, a value customized by the first UE, c, w, or a function g(c, w) of c and w, and different values of x are corresponding to different functions represented by f(x).