Method and apparatus for triggering a trigger

The embodiment of the invention discloses a triggering method and triggering equipment. The triggering method comprises the following steps of: determining terminals currently required to be triggered, wherein each terminal simultaneously belongs to at least two groups; counting the number of the terminals currently required to be triggered in each group; selecting a group with a greatest number of terminals currently required to be triggered as a triggering group; and transmitting triggering information according to the selected triggering group. By the scheme, the terminals required to be triggered can be informed by using the groups in a number which is as great as possible as many as possible; and compared with the prior art, the invention uses relatively fewer groups in the same scene, so the number of required physical downlink control channels (PDCCH) is relatively less, namely the overhead of the PDCCH can be reduced by the scheme.