6.1.2 Session management states

24.0083GPPCore network protocolsMobile radio interface Layer 3 specificationRelease 18Stage 3TS

In this subclause, the SM states are described for one SM entity (see 3GPP TS 24.007 [20]). Each SM entity is associated with one PDP context or MBMS context. Subclause 6.1.2.1 describes the SM states in the MS and subclause 6.1.2.2 describes the SM states on the network side.

6.1.2.1 Session management states in the MS

In this subclause, the possible states of an SM entity in the mobile station are described. As illustrated in figure 6.1/3GPP TS 24.008 and 6.1a/3GPP TS 24.008 there are seven SM states in the MS.

6.1.2.1.1 PDP-INACTIVE

This state indicates that neither PDP context nor MBMS context exist.

6.1.2.1.2 PDP-ACTIVE-PENDING

This state exists when PDP context activation was requested by the MS.

6.1.2.1.3 PDP-INACTIVE-PENDING

This state exists when deactivation of the PDP contexts was requested by the MS.

6.1.2.1.4 PDP-ACTIVE

This state indicates that the PDP context is active.

6.1.2.1.5 PDP-MODIFY_PENDING

This state exists when modification of the PDP context was requested by the MS.

6.1.2.1.6 MBMS-ACTIVE-PENDING

This state exists when the MS has requested the network to activate an MBMS context.

6.1.2.1.7 MBMS-ACTIVE

This state indicates that the MBMS context is active.

Figure 6.1/3GPP TS 24.008: Session management states for PDP context handling in the MS (overview)

It shall be noted, that Figure 6.1/3GPP TS 24.008 applies to both the PDP context activation procedure and the secondary PDP context activation procedure, though the distinction in messages regarding the activation of PDP contexts is not shown here for simplicity.

Figure 6.1a/3GPP TS 24.008: Session management states for MBMS context handling in the MS (overview)

6.1.2.2 Session management states on the network side

In this subclause, the possible states of an SM entity on the network side are described. As illustrated in figures 6.2/3GPP TS 24.008 and 6.2a/3GPP TS 24.008 there are eight SM states on the network side.

6.1.2.2.1 PDP-INACTIVE

This state indicates that the PDP context or MBMS context is not active.

6.1.2.2.2 PDP-ACTIVE-PENDING

This state exists when the PDP context activation was initiated by the network.

6.1.2.2.3 PDP-INACTIVE-PENDING

This state exists when deactivation of the PDP context was requested by the network.

6.1.2.2.4 PDP-ACTIVE

This state indicates that the PDP context is active.

6.1.2.2.5 PDP-MODIFY-PENDING

This state exists when modification of the PDP context was requested by the network.

6.1.2.2.6 MBMS-ACTIVE-PENDING

This state exists when the network has initiated MBMS context activation.

6.1.2.2.7 MBMS-INACTIVE-PENDING

This state exists when the network has requested the MS to deactivate an MBMS context.

6.1.2.2.8 MBMS-ACTIVE

This state indicates that the MBMS context is active.

Figure 6.2/3GPP TS 24.008: Session management states for PDP context handling on the network side (overview)

It shall be noted, that figure 6.2/3GPP TS 24.008 applies to both the PDP context activation procedure and the secondary PDP context activation procedure, though the distinction in messages regarding the activation of PDP contexts is not shown here for simplicity.

Figure 6.2a/3GPP TS 24.008: Session management states for MBMS context handling on the network side (overview)