Patent ID: 9065980
Filing Date: 2015-06-23
Classification: H04L,H04N

Abstract:
1. A method for retransmission of data packets, wherein the data packets are sent in data frames, each data frame comprising a checksum but lacking a unique sequence number, during a data transmission of a session between a data transmitter and a receiving device, the method comprising the steps of: detecting data loss in the data stream transmission; determining checksums of at least the received data frames that are directly adjacent to and enclosing the detected data loss; sending an identification key comprising said determined checksums to a retransmission server, whereby the sent checksums constitute a checksum sequence and said identification key is used by the server for identifying the data loss; receiving the requested missing data, comprising at least one data frame, from the retransmission server; interleaving the received at least one data frame in the correct place in the received data transmission before rendering the data information of the data transmission.