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COMMUNICATION SYSTEM AND METHODS USING VERY LARGE MULTIPLE-IN MULTIPLE-OUT (MIMO) ANTENNA SYSTEMS WITH EXTREMELY LARGE CLASS OF FAST UNITARY TRANSFORMATIONS
COMMUNICATION SYSTEM AND METHODS USING VERY LARGE MULTIPLE-IN MULTIPLE-OUT (MIMO) ANTENNA SYSTEMS WITH EXTREMELY LARGE CLASS OF FAST UNITARY TRANSFORMATIONS
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机译:通信系统和方法使用具有极大类快速酉变换的非常大的多输出(MIMO)天线系统
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摘要
An apparatus includes a first communication device with multiple antennas, operably coupled to a processor and configured to access a codebook of transformation matrices. The processor generates a set of symbols based on an incoming data, and applies a permutation to each of the symbols to produce a set of permuted symbols. The processor transforms each of the permuted symbols based on at least one primitive transformation matrix, to produce a set of transformed symbols. The processor applies, to each of the transformed symbols, a precode matrix selected from the codebook of transformation matrices to produce a set of precoded symbols. The codebook of transformation matrices is accessible to a second communication device. The processor sends a signal to cause transmission, to the second communication device, of multiple signals, each representing a precoded symbol from the set of precoded symbols, each of the signals transmitted using a unique antenna from the plurality of antennas.
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