Abstract
A central control server and a load balancing method thereof are provided. The central control server comprises a network interface, a storage and a processor. The network interface is connected to a plurality of base stations and receives a load parameter from each base station. The storage stores the load parameters. The processor is electrically connected to the storage and the network interface. For each base station, the processor calculates a load index according to the load parameter thereof to determine whether the base station belongs to an overload base station based on the load index, and calculates an offload priority index according to the load index, a quantity of offloadable resource of at least one adjacent base station, a first weighting factor and a second weighting factor. The processor determines an offload order of the overload base stations according to the offload priority indices.