Telefonaktiebolaget Lm Ericsson (Publ)

Javier Muñoz Kirschberg

Ibon Gochi Garcia

Miguel Angel Muñoz De La Torre Alonso

Rodrigo Alvarez Dominguez

Carlos Jimenez Cordon

Juan Jose Delgado Reimundez

A method of operating a user plane function UPF node of a core network CN for a communication network is provided. An association message is transmitted to a session management function SMF node of the CN. The association message includes an indication that the UPF node supports a capability to modify session traffic in response to a handover. A session establishment request message is received from the SMF node. The session establishment request message includes an indication to modify session traffic of a protocol data unit PDU session for the communication device in response to handover. Methods relating to session management function SMF nodes and policy control function PCF nodes are also provided.

Methods supporting a capability to modify session traffic in response to a handover and related network nodes

A method of determining a passive Round Trip Time, RTT, delay in a telecommunications system for exchanging data packets in accordance with a data transmission protocol between a first device and a second device. The first and second devices are identified by first and second device identifications, respectively. The data packets include an address part including a source address and a destination address. The method is performed in a node by modifying the address part of a received data packet from the first device, and creating a first timestamp before transmitting the modified data packet to the second device. Upon receiving, at the node, from the second device in response to the modified data packet, a data packet having the modified address part of the modified data packet, the node creates a second timestamp that provides for passively measuring the RTT delay.

Method of determining passive round trip time, RTT, delay in a telecommunications system

At least one identifier classifies a data packet flow of data packets between an originator and the recipient. A confidence level value of the at least one identifier specifies a confidence degree with which the at least one identifier is determined.

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Madrid, Spain

Javier Muñoz Kirschberg