| 摘要 |
The present invention relates to an apparatus and a corresponding method for mapping payload data of mapping input data streams (S1, S2,..., Sp) onto a mapping output data stream (Q) having a channel bandwidth for transmission in a multi- carrier broadcast system. To enable the selection of the robustness for the transmission of data, said apparatus comprises a frame forming means (16, 64) for mapping the data blocks of said at least two mapping input data streams (S1, S2,..., Sp) onto frames (F) of said mapping output data stream (Q) covering said channel bandwidth, each frame (F) comprising a payload portion (50), said payload portion (50) comprising a plurality of data symbols (52)and being segmented into data segments (51) each covering a bandwidth portion of said channel bandwidth, wherein the frame forming means (64) is adapted for mapping the data blocks of said at least two mapping input data streams (S1, S2,..., Sp) onto the data symbols (52) of said pay- load portion (50) and comprises a MIMO mode selection means (1614, 1682) for selecting the MIMO mode of the data blocks per data segment (51) and/or per map- ping input data stream (S1, S2,..., Sp). |
