Encoding apparatus and encoding method of multiple input multiple output communication system
AssigneeElectronics and Telecommunications Research Institute
InventorByung Jo KIM
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Abstract
When precoding information corresponding to data items of respective layers to be transmitted is received from an upper layer, an encoding apparatus of a multiple input multiple output (MIMO) communication system selects a precoding matrix among a plurality of precoding matrices stored in a storage using the precoding information and precodes the data items of the respective layers by simple operations consisting of at least one operation combination of addition, subtraction, selection, and inversion operations in accordance with a kind of the selected precoding matrix and a precoding operation pattern.
Claims16
An encoding apparatus of a multiple input multiple output (MIMO) communication system, comprising:
- a storage for storing a plurality of precoding matrices to correspond to a plurality of address values, respectively;
- a controller for receiving precoding information corresponding to data items of respective layers from an upper layer, selecting a precoding matrix from the storage using the precoding information, and analyzing a kind of the selected precoding matrix and a precoding operation pattern;
- an operation selector for selecting one of spatial multiplexing precoding, spatial multiplexing simple precoding, and transmission diversity precoding in accordance with the kind of the precoding matrix and the precoding operation pattern;
- and
- an operator for precoding the data items of the respective layers in accordance with the selected precoding.
An encoding method of an encoding apparatus of a MIMO communication system, the encoding method comprising:
- receiving precoding information corresponding to data items of respective layers to be transmitted from an upper layer;
- selecting a precoding matrix among a plurality of precoding matrices stored in a storage using the precoding information;
- selecting one of spatial multiplexing precoding, spatial multiplexing simple precoding, and transmission diversity precoding in accordance with a kind of the selected precoding matrix and a precoding operation pattern;
- and
- precoding the data items of the respective layers in accordance with the selected precoding.
Dependencies are inferred from the claim text.