1. A resource scheduling method comprising:determining, by a centralized scheduler, a classification threshold;
classifying, by the centralized scheduler, each of a plurality of User Equipments (UEs) as a Cell Edge (CE) UE or a Non-Cell Edge (nCE) UE according to the classification threshold;
adjusting, by the centralized scheduler, the classification threshold to control a computing complexity of a computing complexity of a distributed scheduler included in a Remote Radio Head (RRH), wherein the classification threshold is adjusted to decrease a number of the nCE UE so that the computing complexity of the distributed scheduler is reduced; and
performing, by the centralized scheduler, a resource scheduling for the at least one CE UE and the at least one nCE UE.