Patent ID: 8942084
Filing Date: 2015-01-27
Classification: H04L

Abstract:
1. A method of reducing a retransmission of a data frame, the method comprising: continuously receiving, in a communicating module, data frames encoded from source data packets by an erasure coding method; checking, in an error checking module, for errors in the received data frames; and transmitting, in a controlling module, an acknowledge (ACK) message informing that the source data packets are capable of being restored, when a number (R) of data frames not containing errors is equal to or greater than a number (K) of source data packets, and transmitting an ACK message including a number (X) of data frames for which retransmission is to be requested when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of the checking, wherein the number (X) of the data frames for which retransmission is to be requested satisfies K−R<X<N−R, where N indicates a number of the encoded data frames, R indicates the number of the data frames not containing errors, and K indicates the number of the source data packets.