METHOD OF REDUCING RETRANSMISSION OF DATA FRAME AND RECEIVING NODE THEREFOR
First Claim
1. A method of reducing a retransmission of a data frame, the method comprising:
- continuously receiving N data frames encoded from K source data packets by an erasure coding method;
checking for errors in the received N data frames; and
transmitting an ACK message informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets, and transmitting an ACK message including the 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.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of reducing a retransmission of a data frame and a receiving node therefor continuously receiving N data frames generated by encoding K source data packets by erasure coding. Errors in the received N data frames are checked, and an ACK message transmitted informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets. An ACK message including the number (X) of data frames for which retransmission is to be requested is transmitted when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of checking for errors in the received N data frames. Despite errors in some of the data frames, data may be restored without requesting the retransmission of data frames.
-
Citations
10 Claims
-
1. A method of reducing a retransmission of a data frame, the method comprising:
-
continuously receiving N data frames encoded from K source data packets by an erasure coding method; checking for errors in the received N data frames; and transmitting an ACK message informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets, and transmitting an ACK message including the 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. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A receiving node for reducing a retransmission of a data frame, the receiving node comprising:
-
a communicating module continuously receiving N data frames encoded from K source data packets by an erasure coding method; an error checking module checking for errors in the received N data frames; and a controlling module transmitting an ACK message informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets, and transmitting an ACK message including the 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. - View Dependent Claims (7, 8, 9, 10)
-
Specification