Method for allocating channel resources and base station

The invention provides a method for allocating channel resources and a base station. The method is applied to the discontinuous resource allocation of a physical uplink sharing channel (PUSCH) in an LTE-A system, and comprises the step that when allocating the resources for the PUSCH of user equipment on a component carrier wave in a mode of discontinuous resource allocation, the base station allocates two discontinuous clusters for the user equipment according preset information and sends a result of the resource allocation to the user equipment, wherein the preset information at least comprises length information of one cluster. The method can indicate the condition of the resource allocation through uplink scheduling authorization signaling and save signaling expenditure effectively.