Invention Grant
US08903003B2 Communication station and method for transmitting OFDM symbols with cyclic-delay diversity (CDD) 有权
用于发送具有循环延迟分集(CDD)的OFDM符号的通信站和方法

Communication station and method for transmitting OFDM symbols with cyclic-delay diversity (CDD)
Abstract:
A communication station uses a plurality of antennas for transmission of orthogonal frequency division multiplexed (OFDM) symbols. The communication station includes an interleaver to interleave a block of encoded bits of an associated input bit stream for use in generating an output bit stream having a desired code rate. The communication station also includes circuitry to modulate the bits of the output bit stream to generate complex-valued modulation symbols, circuitry to map the modulation symbols for transmit diversity to layers for each of the antennas based on a number of antennas used and to further map the modulation symbols for each antenna onto resource elements, circuitry to cyclically shift the mapped modulation elements, circuitry to provide the cyclically-shifted modulation symbols for transmission by an associated one of the antennas, and circuitry to add a cyclic prefix to the modulation symbols prior to transmission.
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