Patent ID: 8798015
Filing Date: 2014-08-05
Classification: H04L

Abstract:
1. A method of transmitting data packets from a transmitter to a receiver, wherein an indicator is sent along with each data packet of the data packets; wherein the indicator indicates whether the respective data packet is a new data packet or a re-sent data packet; wherein, when the receiver receives a first data packet with an error, the receiver sends a negative confirmation (NACK) message to the transmitter; wherein, if the receiver subsequently decodes an error-free second data packet which was transmitted consecutively after the transmission of the first data packet and sent along with the indicator indicating that the second data packet is a new data packet, the receiver sends a revert (REV) confirmation message consequent on receiving the second data packet, the REV confirmation message acknowledges receipt of the second data packet and requests the transmitter to re-send the first data packet; wherein the REV confirmation message is a predetermined signal that informs the transmitter that a gap exists in a memory of the receiver due to a missing data packet transmitted consecutively before the second data packet, the missing data packet being (i) retransmitted without a delay, (ii) retransmitted with a delay or (iii) disregarded for retransmission; and wherein the REV confirmation message is transmitted when the receiver decodes an error-free second data packet transmitted consecutively after transmission of the first data packet and transmitted with a Network Data Incoming (NDI) indicator, the NDI indicator indicating that the second data packet is an unexpected new data packet.