EVALUATION OF WIRELESS COMMUNICATIONS SERVICE CHANNEL WITH VARIETY OF PARALLEL DATA STREAMS

摘要

FIELD: information technology. ^ SUBSTANCE: first evaluation of the wireless channel is obtained during restoration of a variety of parallel data streams on the basis of received pilot symbols. Detection is carried out for the received data symbols using the first channel evaluation to obtain detected symbols for the first data stream. Obtained detected symbols are decoded to receive the decoded first stream of data that are encoded again for obtaining repeatedly modulated symbols. The second channel evaluation is obtained on the basis of the repeatedly modulated symbols. The first and the second channel evaluations are joined together to obtain the third channel evaluation having the higher quality. The interfering signal determined by the first data stream is evaluated and removed using the third channel evaluation. Detection of symbols is carried out when removing the evaluated interference from the main stream using the third channel evaluation to obtain detected symbols for the second data stream. Obtained detected symbols are additionally decoded to receive the decoded data of the second data stream. ^ EFFECT: high-quality channel evaluation. ^ 37 cl, 7 dwg