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Data processing apparatus and method operable to map and de-map symbols and carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol
Data processing apparatus and method operable to map and de-map symbols and carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol
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机译:可操作以映射和解映射正交频分复用(OFDM)符号的符号和载波信号的数据处理设备和方法
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摘要
A data processing apparatus maps input symbols to be communicated onto a predetermined number of carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM carrier signals. The interleaver memory reads-out the data symbols on to the OFDM carriers to effect the mapping, the read-out being in a different order than the read-in, and the order being determined from a set of addresses. The set of addresses are generated from an address generator. The address generator includes a linear feedback shift register and a permutation circuit.
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