Feature Description

EPS Interworking through 5G Core Network

SMF supports modification of EPS bearer that a PCF or an MME initiates. The SMF+PGW handles the following triggers for this feature:

  • QoS modifications.

  • RAT, ULI, and SGW modifications.

  • UE time zone modifications.

SMF Interworking with Diameter Interfaces

SMF supports modification of EPS bearer for the tracking area update information through the following features:

  • PCRF-initiated RAR

  • E-UTRAN PDN modification with S-GW change

  • E-UTRAN PDN modification without S-GW change