Patent ID: 8797863

Claim:
A mobile communication system that communicates by using a plurality of channels, comprising: a first control unit and a second control unit, wherein the first control unit transmits information, regarding a wireless resource to be used for data transmission on a first channel and a future transmission timing of the first channel, to the second control unit, the second control unit determines a wireless resource which can be applied to data transmission of a second channel by using at least the information regarding the wireless resource and the future transmission timing of the first channel and controls communication of data on the second channel in accordance with the determined wireless resource, and the first control unit calculates a timing at which the information regarding the wireless resource and the future transmission timing is transmitted, on the basis of a time required for scheduling by the second control unit and a unit time for transmission of scheduling data, the second control unit uses a first scheduling method when the determined wireless resource exceeds a predetermined threshold value and uses a second scheduling method, different from the first scheduling method, when the determined wireless resource is equal to or smaller than the predetermined threshold value, the first scheduling method is a scheduling method which equalizes transmission probabilities of users on the basis of a priority or wireless quality upon the control of communication, and the second scheduling method is a scheduling method which can transmit high-priority data at a high probability upon the control of communication.