- 5QI (5G QoS Identifier) is a pointer to a set of QoS characteristics, such as priority level, packet delay, or packet error rate
- These characteristics can be standardized or non-standardized
- Different standardized 5QI values are available for different QoS flow types, such as GBR, non-GBR, and Delay Critical GBR flows
- 5QI values from 128 to 254 are non-standardized and can be used for operator-specific configurations
- 5QI applies to a flow carried at some point in a bearer, while QCI applies to a bearer within which certain types of flows are expected
- 5QI values are aligned with the EPS standardized QCI characteristics, making mapping of QoS easier during mobility between 5GS and EPS.
Tech Junction Answered question May 24, 2023