TRANSMITTER AND RECEIVER, TRANSMIT AND RECEIVE METHOD FOR ALLEVIATING QUANTIZATION ERROR AND FEEDBACK DELAY IN MULTIPLE ANTENNA SYSTEM

摘要

A transceiver and a transceiving method for reducing quantization error and feedback delay in a multiple antenna system are provided to perform combining in a receiver in advance, thereby reducing quantization error and feedback delay. A pre-combining unit(803) calculate an effective channel by using the first pre-combining vector after the first channel estimation. The pre-combining unit calculates the second pre-combining vector which maintains the effective channel through the second channel estimation. A decoding unit(805) decodes data by using the second pre-combining vector. The pre-combining unit obtains the effective channel vector from the first pre-combining vector.