Processing method and system for determining relative grant and absolute grant mapping

The invention provides a processing method for determining a relative grant and an absolute grant mapping, and the method includes: mapping an absolute grant according to a first absolute grant value mapping relationship table and processing a relative grant signaling according to a first scheduling grant table, when a drift radio network subsystem does not activate the operation of an uplink 16 Quadrature Amplitude Modulation (16QAM) in a radio link; and mapping the absolute grant according to a second absolute grant value mapping relationship table and processing the relative grant signaling according to a second scheduling grant table, when the drift radio network subsystem activates the operation of the uplink 16QAM in the radio link. The invention also provides a processing system for determining the relative grant and the absolute grant mapping, and the system includes a first processing unit on the drift radio network subsystem side and a second processing unit on the drift radio network subsystem side. By applying the method and system of the invention, the relative grant signaling and the absolute grant signaling can be processed based on the association between the relative grant and the absolute grant.