Mapping method set in correspondence of a control channel, detection method and control channel corresponding device

A method for performing a mapping start map control channels, comprising: for the same level of aggregation, depending on the respective length of the signaling scheduling indication, also called Signaling length, at least two control channels corresponding to a carrier component, determining (11) a space-specific search a user equipment, UE, corresponding to the at least two control channels when the same length of signaling, where the at least two channels control having the same length signaling use the same specific search space of the UE; Upon start-correspondence mapping (12) of the at least two control channels having the same length signaling specific search space corresponding UE determined; for the same level of aggregation, depending on the respective length of the signaling scheduling indication, also called Signaling length, at least two other control channels corresponding to a carrier component, determine spaces specific search UE corresponding to the at least two control channels respectively have lengths signaling different, where at least two control channels, when they have lengths different signaling, use different spaces specific search UE in at least one unit temporary transmission; and perform mapping putting in correspondence of at least two control channels having different signaling lengths for specific search spaces corresponding EU determined, respectively.