PDU set importance marking in QoS flows within wireless communication networks

Abstract

A method is provided which is performed by a User Plane Function (UPF), the method comprising: receiving a configuration, the configuration comprising a protocol description including one or more media stream components and at least one default PDU set importance value; and receiving a protocol data unit (PDU) in the downlink direction, the received PDU undergoing PDU set processing according to the configuration. The method further comprises determining whether the received PDU does not necessarily match all components of the received configuration, or whether the received PDU matches the protocol description of the information but the received PDU is not part of a PDU set; and determining a PDU set importance information value, the determination being based on at least one default PDU set importance value. The method further comprises creating a header for the received PDU, wherein, in cases where the received PDU does not necessarily match all components of the received configuration, or where the received PDU matches the protocol description of the received configuration but the received PDU is not part of a PDU set, the header includes PDU set information and a determined PDU set importance information value, and routing the received PDU and header to the radio access network. Figure 13 will be published along with the summary.

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