Method for transmitting scheduling information and base station

The invention provides a method for transmitting scheduling information and a base station. The method comprises the following steps: that a downlink sub-frame corresponding to an uplink sub-frame cannot be used for transmitting scheduling information according to a first scheduling timing sequence corresponding to a first TDD uplink and downlink configuration scheme in a plurality of time division duplex TDD uplink and downlink configuration schemes is determined; a first equivalent TDD uplink and downlink configuration scheme is obtained by taking one or a plurality of downlink sub-frames containing the sub-frame in a wireless frame as an uplink sub-frame(s); a downlink sub-frame corresponding to the uplink sub-frame is selected according to a second scheduling timing sequence corresponding to a second TDD uplink and downlink configuration scheme in the plurality of TDD uplink and downlink configuration schemes, wherein the set of downlink sub-frames specified by the second TDD uplink and downlink configuration scheme is a subset of the set of downlink sub-frames specified by the first equivalent TDD uplink and downlink configuration scheme; and the scheduling information is transmitted in the selected downlink sub-frame.