Telefonaktiebolaget Lm Ericsson (Publ)

Yumei Song

Miguel Angel Muñoz De La Torre Alonso

Jiehong Yang

Yong Yang

Susana Fernandez Alonso

Miguel Angel Puente Pestaña

Fuencisla Garcia Azorero

Carlos Jimenez Cordon

Yingjiao He

Juan Xu

Hong Zhang

The embodiments herein relate to Sx protocol extension to support node PDR. In one embodiment, there proposes a method () in a first network node () configured as control plane function (CPF). The first network node () is coupled to a second network node () configured as user plane function (UPF) via an Sx interface. The method () comprising transmitting (S) a message associated with a Packet Detection Rule (PDR) to the second network node () via the Sx interface, wherein the PDR is applicable to more than one Sx session. With embodiments herein, the CPF-UPF signaling throughput can be minimized significantly, and the memory footprint per Sx session can be decreased.

Sx protocol extension to support node PDR

A method performed by a user plane, UP. The method includes determining whether a redirect message should be sent to a user equipment, UE, that has transmitted a first message intended for a first server, wherein the determining comprises: i) receiving a message transmitted by the first server and determining, based on the message, whether a redirect message should be sent to the UE or ii) detecting a timeout with respect to the first server; and, as a result of determining that redirect message should be sent to the UE, sending to the UE the redirect message, wherein the redirect message is configured to cause the UE to send a second message to a second server.

Redirection handling

Growing community of inventors

Gothenburg, Sweden

Yumei Song