FIELD: radio engineering, communication. SUBSTANCE: transmitting unit sends data batch to receiving unit. Data batch includes serial number of batch provided that transmitting unit rises monitored number of transmission which is used for indication of serial number of next data batch subject to transmission. On receipt of data batch receiving unit sends acknowledgment back to transmitting unit. Acknowledgment includes monitored number of reception. Monitored number of reception indicates serial number of next data batch which receiving unit anticipates to receive. On receipt of acknowledgment transmitting unit determines presence or absence of error in process of information exchange proceeding from monitored number of reception and number of transmission which is achievable result of method. EFFECT: raised reliability of data batch transmission. 10 cl, 3 dwg
