METHOD OF CLOCK SYNCHRONISATION AGAINST DATA SIGNALS WITH CRC TEST Russian patent published in 2015 - IPC G06F17/00 H04L7/02 

FIELD: electricity.

SUBSTANCE: method is related to the area of wireless engineering, and namely to radio communication equipment, and it may be used in data transmission systems using phase-shift keyed signals without redundancy in order to maintain synchronisation for phase-shift keyed signals or quadrature-amplitude modulated signals, in which code sequences block error-control codes and CRC are used. Essence of the method of clock synchronisation against data signals with CRC test lies in sequential demodulation of the received signal, decoding of code words with error correction and check-up of decoding fact by results of CRC calculation, i.e. remainder of division by polynom. With zero remainder CRC is calculated and added to the data block, coding is made with error-control code, modulation is made and cross-correlation function (CCF) is calculated for the signal received from the communication channel.

EFFECT: potential maintenance of clock synchronisation against data signal without transmission of auxiliary synchronising signals thus increasing transfer rate at the same running speed of transfer.

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