In the foregoing indication manner, it is necessary to introduce 2-bit indication overhead, and in order to reduce this overhead, it is also possible to limit the type of the time domain offset between the adjacent monitoring windows according to different kinds of time domain duration of the monitoring window. For example, when the monitoring window length is 1 slot, it is specified that there are only two possibilities for the time domain offset between the adjacent monitoring windows: the time domain offset between the adjacent monitoring windows is the monitoring window length (that is, the adjacent monitoring windows overlap, and configured continuously), or the time domain offset between the adjacent monitoring windows is 1/X of the time domain duration of the monitoring window (that is, the adjacent monitoring windows partially overlap). In this case, only 1 bit is needed to indicate the offset value, for example, ‘0’ represents ‘the time domain offset between the adjacent monitoring windows is a monitoring window length’, and ‘1’ represents ‘the time domain offset between the adjacent monitoring windows is 1/X of the monitoring window length’. Similarly, X is an integer greater than 1, and a value thereof may be specified in a protocol or indicated by a signaling.