Abstract
PROBLEM TO BE SOLVED: To solve a problem of prior arts in which MIMO is introduced to WiMAX or 3GPP and only downlink (DL) MIMO is defined in the WCDMA standard of 3GPP although a research on further developed advancement of MIMO to 3GPP releases 9 10 is progressing.
SOLUTION: Method and device for uplink transmission using a multi-antenna are disclosed. A radio transmission/reception unit executes STTD coding to an input stream of a physical channel configured for time-space transmission diversity (STTD). Each physical channel can perform mapping on an in-phase (I) branch or a quadrature-phase (Q) branch. WTRU can execute STTD coding in a binary region or complex region. Further WTRU can execute precoding based on precoding weighting on at least one physical channel containing E-DPDCH and transmission of a pre-coded output stream through plural antennas.
SELECTED DRAWING: Figure 2
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