| 摘要 |
The present invention relates to the technical field of wireless communications, and in particular, to a terminal, a base station and a data transmission method. In a base station, a processing module determines to map numbers of dedicated virtual resource blocks (VRB) to numbers of physical resource blocks (PRB); and a sending module transmits downlink data to a terminal with limited radio frequency bandwidths on PRBs corresponding to the mapped numbers of the PRBs. The used VRBs transmitted by the base station to the terminal within a transmission time interval (TTI) occupy a column of interleavers, and radio frequency bandwidths occupied by Mrow_UE resource blocks (RB) are not greater than those of the terminal, Mrow_UE referring to a difference between maximum values and minimum values of row numbers of the interleavers occupied by the dedicated VRBs. The interleavers are mapped in a row-in column-out mode, and a column of interleavers is mapped to the PRBs with successive numbers, such that VRBs occupied by the terminal are mapped to PRBs, the quantity of the PRBs being not greater than Mrow_UE. The bandwidths occupied by the Mrow_UE PRBs do not exceed the radio frequency bandwidths of the terminal, and it is ensured that the Mrow_UE PRBs are normally received by the terminal with the limited radio frequency bandwidths. |
