RECEPTION DEVICE, RADIO TRANSCEIVING SYSTEM, AND RADIO RECEPTION METHOD

摘要

PROBLEM TO BE SOLVED: To minimize the increase of a hardware scale and to reduce the influence of different reception timing offsets from a plurality of transmission stations.

SOLUTION: First orthogonal converters 1205-1 to 1205-NR perform orthogonal conversion on the N time-series data extracted from a received radio signal. Multi-user detectors 1206-1 to 1206-N extract transmission signals from respective transmission devices from the orthogonally converted time-series data. Inverse orthogonal converters 1207-1 to 1207-NT perform inverse orthogonal conversion on the extracted transmission signal. Rectangular filter circuits 1208-1 to 1208-NT remove Mh time-series data at the front end and Mt time-series data at the rear end and extract Nw time-series data. Second orthogonal converters 1210-1 to 1210-NT perform orthogonal conversion on Nc multicarrier symbols. Demodulators 1211-1-1 to 1211-NT-Nc perform decoding for every Nc orthogonal components.

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