Abstract: An OFDM symbol detection method is provided, which includes receiving OFDM modulated symbols transmitted from multiple transmitting antennas; receiving information on correlation time and/or correlation bandwidth; performing channel estimation on each of a plurality of channels for the multiple transmitting antennas, and conducting smoothing processing on each channel estimation result according to the information on correlation time and/or correlation bandwidth, to obtain channel estimation averages of respective channels; and performing signal detection on the received OFDM symbols by using the channel estimation averages. Both time correlation and frequency correlation are considered in the method.

Abstract: A method for transmitting symbols in a communication system, includes dividing N symbols to be transmitted at one time into 2 groups. A first processing is performed on each of a plurality of symbols in a first group in order to obtain a first group of superimposed symbols. A second processing is performed on each of a plurality of symbols in a second group to obtain a second group of superimposed symbols. Each of the first group of superimposed symbols is transmitted one by one by a first antenna, and corresponding symbols in the second group of superimposed symbols are transmitted by a second antenna. The first processing and the second processing respectively include a conjugate cancellation operation.

Abstract: An OFDM symbol detection method is disclosed, which includes: receiving OFDM modulated symbols transmitted from multiple transmitting antennas; receiving information on correlation time and/or correlation bandwidth; performing channel estimation on each of a plurality of channels for the multiple transmitting antennas, and conducting smoothing processing on each channel estimation result according to said information on correlation time and/or correlation bandwidth, so as to obtain channel estimation averages of respective channels; and performing signal detection on the received OFDM symbols by using the channel estimation averages. Both time correlation and frequency correlation are considered in the method.

Abstract: A method for transmitting symbols in a communication system, includes dividing N symbols to be transmitted at one time into 2 groups. A first processing is performed on each of a plurality of symbols in a first group in order to obtain a first group of superimposed symbols. A second processing is performed on each of a plurality of symbols in a second group to obtain a second group of superimposed symbols. Each of the first group of superimposed symbols is transmitted one by one by a first antenna, and corresponding symbols in the second group of superimposed symbols are transmitted by a second antenna. The first processing and the second processing respectively include a conjugate cancellation operation.