The purpose of the present invention is to improve BER characteristics in a MIMO system. A transmission device 1: generates a carrier symbol by mapping data, which is distributed to each transmission antenna, onto an IQ plane; interleaves, in the time direction, polarized wave-interleaved data obtained by interleaving a plurality of carrier symbols among a plurality of transmission antennas; and generates an OFDM signal. A reception device 2: MIMO-separates time-deinterleaved data obtained by deinterleaving, in the time direction, a complex baseband signal of an OFDM signal; and generates a carrier signal by deinterleaving a plurality of MIMO-separated data among a plurality of reception antennas.
H04J 99/00 - Subject matter not provided for in other groups of this subclass
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
The purpose of the present invention is to improve BER characteristics in a MIMO system. A transmission device 1: generates a carrier symbol by mapping data, which is distributed to each transmission antenna, onto an IQ plane; interleaves, in the time direction, polarized wave-interleaved data obtained by decomposing a plurality of carrier symbols into I-data and Q-data and rearranging either the I-data or the Q-data in accordance with a prescribed rule; and generates an OFDM signal. A reception device 2: MIMO-separates time-deinterleaved data obtained by deinterleaving, in the time direction, a complex baseband signal of an OFDM signal; and, after rearranging either the odd-numbered data or the even-numbered data of a plurality of MIMO-separated data in accordance with a prescribed rule, generates a carrier symbol with adjacent data as the I-data and the Q-data.
H04J 99/00 - Subject matter not provided for in other groups of this subclass
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
In the present invention, at least two component signals that represent luminance and a color difference in an original signal having a predetermined image format are encoded/decoded. This encoding device (10) is equipped with: a local decoding section (17-1, 17-2, 18-1, 18-2, 23-1, 23-2) that generates a locally decoded signal of a second component signal; a luminance-color difference prediction unit (4) that generates a parameter for normalizing the second component signal by comparing the original signal of a first component signal not yet encoded with the locally decoded signal of the second component signal in order to generate a luminance-color difference prediction signal; a prediction signal generation unit (22-1) that generates a prediction signal for an intra-screen prediction or a prediction signal for an inter-screen prediction regarding the first component signal; a synthesis unit (2) that performs a weighted addition of the prediction signal and the luminance-color difference prediction signal in order to generate a corrected prediction signal for the first component signal; and an encoding section (13-1, 14-1, 15-1, 16-1) that generates and encodes a difference signal between the corrected prediction signal and the original signal of the first component signal.
H04N 19/59 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
H04N 19/126 - Quantisation - Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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