In some embodiments the first plurality of OFDM symbols consists of seven OFDM symbols and the second plurality of OFDM symbols also consists of seven ODFM symbols. In some embodiments, the downlink control information in the second set of CCEs is determined to be the resulting downlink control information when the subframe is a subframe with truncation, which includes at least one of the first plurality of OFDM symbols in the first time slot.
Additionally, in various embodiments, receiving of the subframe structure further comprises receiving the subframe from a serving cell in an operating channel of an unlicensed frequency band. Various embodiments may operate such that the resulting downlink control information from either the first or the second set of CCEs comprise resource allocation information prescribing an allocation of resources for Physical Downlink Shared Channel (PDSCH) reception.