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DOWNLINK SYMBOL-LEVEL PRECODING AS PART OF MULTIUSER MISO COMMUNICATION
DOWNLINK SYMBOL-LEVEL PRECODING AS PART OF MULTIUSER MISO COMMUNICATION
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机译:作为多用户MISO通信一部分的下行链路符号级预编码
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摘要
There is provided mechanisms for downlink symbol-level precoding as part of multiuser MISO communication. A method is performed by a network node. The method comprises obtaining a data vector of a current time instant to be precoded. The data vector comprises data symbols for 1 users. The current time instant corresponds to a single symbol. The method comprises precoding the obtained data vector by determining an output vector for the data vector of the current time instant. Determining the output vector for the current time instant comprises searching for a data vector of a previous time instant that is co-linear with the data vector of the current time instant according to a co-linearity factor. When such a data vector of the previous time instant is found, the output vector is equal to an output vector of the previous time instant multiplied with the co-linearity factor.
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