Method and Apparatus for Combined Sequence Numbers for Drop Precedence Support

摘要

The present disclosure relates to a technique of transporting data packets over a telecommunications transport network and discloses methods and apparatuses for transporting data packets over a telecommunications transport network. The data packets are carried by a plurality of bearers and a drop precedence class is assigned to each data packet, for each of the bearers. An example method includes determining and tagging a sequence number to each data packet to which a drop precedence class has been assigned, where the sequence number is determined based on the amount of the sent data packets of the same drop precedence class and the amount of the sent data packets of all lower drop precedence classes. The method further includes forwarding each tagged data packet for transmission through the network, and checking the sequence number of each received data packet, to determine whether there has been any packet loss.

主权项

1. A method of transporting data packets over a telecommunications transport network, wherein the data packets are carried by a plurality of bearers and a drop precedence class is assigned to each data packet of each of the bearers, the method comprising:
determining and tagging a sequence number to each data packet to which a drop precedence class has been assigned, wherein the sequence number is determined based on the amount of the sent data packets of the same drop precedence class and the amount of the sent data packets of all lower drop precedence classes; forwarding each tagged data packet for transmission through the transport network; and checking the sequence number of each received data packet to determine whether there has been a loss of one or more data packets, indicating congestion in the transport network.