The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2015
Filed:
Dec. 21, 2010
Wei Gu, Shanghai, CN;
Lei Guo, Sollentuna, SE;
Xiao LI, Shanghai, CN;
Di Liu, Shanghai, CN;
Lirong Sun, Shanghai, CN;
Qi Xia, Shanghai, CN;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
The present invention relates to a method for improving IP fragmentation and transmission of user payload between a User Equipment, UE (), and a Peer Node, PN (). The payload is 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 comprises the steps of: The first node () fragments () 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 () encapsulates () said fragments at the entry of the first tunnel (). What particularly characterizes the method is that it further comprises a step where the first node () determines () 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 ().