In a communication network, a network function may be provided for controlling Information Centric Networking (ICN) protocol-based traffic flow between a set of user equipment (UE). This network function may be an ICN application function (ICN-AF), and may obtain ICN layer information from an ICN router which is indicative of a congestion state of a current PDU session of user equipment. If the congestion state indicates congestion, the ICN-AF may initiate establishment of a new PDU session for the user equipment (UE1) or initiate upgrade of a quality of service (QoS) characteristic of the current PDU session, for example using the session management function (SMF) and via the SMF's session management of PDU sessions.