Patent ID: 9203751
Filing Date: 2015-12-01
Classification: H04L,H04W

Abstract:
1. A method for improving IP fragmentation and transmission of user payload between a User Equipment, UE, and a Peer Node, PN , the payload being transmitted through a transmission path enabled by at least a first and a second established tunnel, said tunnels connecting a first and a second node in a Packet Core Network, PCN, the method comprising the steps of: the first node fragmenting at least one received payload packet into fragments on the basis of a minimum Maximum Transmission Unit, MTU, for an upper IP layer of the transmission path, the first node encapsulating said fragments at the entry of the first tunnel, and the first node determining the MTU for the upper IP layer of the transmission path on the basis of an MTU of a lower IP layer of the transmission path and on the basis of the size of at least one additional tunnel header for the encapsulated fragments.