QoS Model

The QoS profile of a QoS flow contains QoS parameters: For each QoS flow:

• A 5G QoS Identifier (5QI).

• An Allocation and Retention Priority (ARP).

In case of a GBR QoS flow only:

• Guaranteed Flow Bit Rate (GFBR) for both uplink and downlink.

• Maximum Flow Bit Rate (MFBR) for both uplink and downlink.

• Maximum Packet Loss Rate for both uplink and downlink.

In case of Non-GBR QoS only.

• Reflective QoS Attribute (RQA): the RQA, when included, indicates that some (not necessarily all) traffic carried on this QoS flow is subject to reflective quality of service (RQoS) at NAS.

Protocols’ flows

Example

VoNR

Main componentes: 5G RAN, 5G Core, IMS

Establishement of specific PDU sessions.

QoS.

Call Flow