Patent ID: 8625707

Claim:
A transmitting end apparatus in a Multiple Input Multiple Output (MIMO) single carrier wireless communication system, the apparatus comprising: a coder configured to perform block coding on symbols; an extender configured to collect the block-coded symbols during one transmit signal duration, arrange in a reverse order one or more remaining symbols other than symbols having an index of ‘0’ for a symbol vector taking a conjugate form, and perform repetitive extension on the collected symbol vectors by an interval required in a frequency domain, wherein when the transmitting end uses an Alamouti code, the extender is configured to perform the repetitive extension on each symbol vector one time; an inserter configured to insert ‘0’ to the repetitively extended symbol vectors so that the vectors are mutually orthogonal in a time domain; and a combiner configured to multiply the ‘0’-inserted symbol vectors by a phase component so that the vectors are mutually orthogonal in the frequency domain and thereafter combine the symbol vectors to generate a transmit (Tx) signal for each antenna, wherein the combiner is configured to regulate a power of the Tx signal for each antenna to satisfy a total Tx power.