Section: 10.3 Timers of 5GS session management
Content: Timers of 5GS session management are shown in table 10.3.1 and table 10.3.2. NOTE: Timer T3396 is defined in 3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  [12]. Table 10.3.1: Timers of 5GS session management – UE side NOTE 1: The back-off timer is used to describe a logical model of the required UE behaviour. This model does not imply any specific implementation, e.g. as a timer of timestamp. NOTE 2: Reference to back-off timer in this section can either refer to use of timer T3396 or to use of a different packet system specific timer within the UE. Whether the UE uses T3396 as a back-off timer or it uses different packet system specific timers as back-off timers is left up to UE implementation. Table 10.3.2: Timers of 5GS session management – SMF side