METHOD OF ITERATIVE SIGNAL PROCESSING FOR SERIAL MODEM AND DEVICE TO THAT EFFECT (VERSIONS) Russian patent published in 2009 - IPC H04L29/02 

FIELD: communication means.

SUBSTANCE: invention is intended for use in communication systems employed for data transport through transmission links with inter-symbol interference when high confidence of data transmission is required. According to the method of iterative processing of the signal for the serial modem (version one) in the receiving portion LLR bit strings are detected after de-interlacer and SISO decoder, sequences of preliminary bit estimates are formed, wherein CRC is checked. Series-connected second detector and second CRC evaluation block are introduced into the receiving equipment of the device (version one), along with the second and the third switches. Second version of the method, presupposes adding of the CRC code in transmitting part after the interlacer, and in the receiving part - detecting of LLR bit sequence after the SISO equaliser and interlacer, formation of the sequence of preliminary bit estimates and CRC check therein. As per the second version of the device into the transmitting part there is a specially introduced CRC - adding block, and into the receiving part - the second and the third detectors, the first and the second CRC evaluation blocks, the second and the third switches.

EFFECT: enhanced probability of correct data reception, improved noise-immunity of the communication equipment, lowered signal processing time by turbo equaliser of the serial modem through reduced number of iterations and reduced desired amount of computational resources.

4 cl, 8 dwg