A.1 Relation between the administrative state and the "Pre-operation state of the gNB-DU Cell"

28.5413GPP5G Network Resource Model (NRM)Management and orchestrationStage 2 and stage 3TS

The administrative state indicates the permission to use or prohibition against using the cell, imposed through the OAM services. The administrative state has three values: "LOCKED", "SHUTTING DOWN" or "UNLOCKED"

The meanings of these values are defined in ITU T Recommendation X.731 [18].

The relation between the administrative state and the "Pre-operation state of the gNB-DU Cell" is defined in clause 8.5 of TS 38.401 [4]. See below an extract from clause 8.5 of TS 38.401 [4] on the F1 startup and cell activation.

If the operationalState is "ENABLED" (i.e. the resource is physically installed and working) and if the administrativeState is "UNLOCKED", the step "0: Pre-operational state" will exit and the step "1: F1 Setup Request" will be executed."

8.5 F1 Startup and cells activation

This function allows to setup the F1 interface between a gNB-DU and a gNB-CU and it allows to activate the gNB-DU cells.

Figure 8.5-1: F1 startup and cell activation