Abstract
PROBLEM TO BE SOLVED: To provide a mechanism that enables high transmission performance in a radio communication network in an efficient manner.
SOLUTION: User equipment maps the block of a plurality of bits to a sequence of complex valued modulation symbols. The user equipment block spreads the sequence of complex valued modulation symbols across Discrete Fourier Transform Spread-Orthogonal Frequency Division Multiplexing (DFTS-OFDM) symbols. This is performed by applying a spreading sequence to the sequence of complex valued modulation symbols and acquiring a block spread sequence of complex valued modulation symbols. The user equipment further transforms the block spread sequence of complex valued modulation symbols for each DFTS-OFDM symbol. This is performed by applying a matrix that depends on at least one of a DFTS-OFDM symbol index and slot index to the block spread sequence of complex valued modulation symbols. The user equipment also transmits the block spread sequence of complex valued modulation symbols that has been transformed to a radio base station.
SELECTED DRAWING: Figure 11
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