View source for DEVICE AND METHOD FOR SELECTIVE RETRANSMISSION OF LOST PACKETS: abstract simplified (18335755)

*This abstract for appeared for patent application  number 18335755 Titled 'DEVICE AND METHOD FOR SELECTIVE RETRANSMISSION OF LOST PACKETS'

==Simplified Explanation==

The abstract describes a method for efficiently retransmitting lost data in a communication network. It suggests using a first network device to transmit a sequence of data packets to a second network device. The first device then receives a notification message from the second device, indicating the largest sequence number of a received data packet and the missing data packets up to that number. The missing data packets are retransmitted by the first device, with each packet being marked as missing after its initial transmission. The sequence number of each missing packet is lower than the largest sequence number minus a certain value.


==Original Abstract Submitted==

The present disclosure relates to protocols for efficiently retransmitting lost data in a communication network. To this end, the disclosure proposes a first network device including processing circuitry configured to transmit a sequence of data packets to a second network device, receive at least one notification message from the second network device, and retransmit missing data packets as a next step after receiving the at least one notification message. The at least one notification message is indicative of both (i) a largest sequence number L of a data packet received at the second network device and (ii) one or more data packets that are missing from the sequence up to L at the second network device. Each missing data packet is indicated as a missing data packet after its first transmission, and a sequence number X of each missing data packet is less than L−K.