Patent ID: 8472465

Claim:
A method for allocating subframes of a Time Division Duplex system, comprising: determining a configuration ratio of uplink service subframe to downlink service subframe at a subframe allocation period including at least one radio frame according to a ratio of uplink traffic to downlink traffic, wherein the radio frame structure comprises 2 half-frames each of 5 ms, each half-frame consists of 8 service time slots each of 0.5 ms and 1 special time slot field of 1 ms, and two consecutive service time slots form a subframe of which the length is 1 ms; and determining an allocation mode of uplink service subframes and downlink service subframes in the at least one radio frame according to the configuration ratio of uplink service subframe to downlink service subframe; wherein, when one radio frame is taken as the subframe allocation period, an allocation mode in which a pair of switch-points is configured for one half-frame of the one radio frame is determined when a base station coverage range required by the system is larger than or equal to a preset first threshold, or an allocation mode in which a pair of switch-points is configured for each half-frame of the one radio frame is determined when a time delay required by the system is less than or equal to a preset second threshold.