The present disclosure provides communication apparatus and communication method for control signaling. A communication apparatus comprises circuitry which, in operation, generates a transmission signal comprising a plurality of user fields and a data field, the data field comprising a plurality of resource units (RUs); a transmitter, which, in operation, transmits the generated transmission signal; wherein a single transmission scheme is applied to one or more RUs of the plurality of RUs, which are assigned to another communication apparatus; and wherein one or more user fields of the plurality of user fields are addressed to the another communication apparatus and a number of the one or more user fields addressed to the another communication apparatus is equal to a number of the one or more RUs assigned to the another communication apparatus; and the one or more user fields addressed to the another communication apparatus correspond to the one or more RUs assigned to the another communication apparatus respectively.