5.17 Configuration of Home (e)NodeB entities

23.0023GPPNetwork architectureRelease 17TS

5.17.1 Configuration of the Home NodeB Subsystem

The configuration of the Home NodeB Subsystem is presented in figure 5.17-1. In the figure, all the functions are considered implemented in different logical nodes. If two logical nodes are implemented in the same physical equipment, the relevant interfaces may become internal to that equipment.

The Home NodeB Gateway may also be used only for the control plane of Iu-CS and/or Iu-PS interfaces. In this case, the user plane of Iu-CS and/or Iu-PS interfaces is directly between the Home NodeB and respectively the MSC/VLR and the SGSN/Serving GW/GGSN.

In case Direct Tunnel is established, the user plane is directly between the Home NodeB Subsystem and the GGSN or Serving GW nodes.

Figure 5.17-1: Configuration of PLMN supporting Home NodeB Subsystem

5.17.2 Configuration of the Home eNodeB Subsystem

The configuration of Home eNodeB Subsystem with a Home eNodeB Gateway present is shown in figure 5.17-2. In the figure, all the functions are considered implemented in different logical nodes. If two logical nodes are implemented in the same physical equipment, the relevant interfaces may become internal to that equipment.

The presence of Home eNodeB Gateway in the configuration of Home eNodeB Subsystem is optional.

The Home eNodeB Gateway may also be used only for the S1-MME interface. In this case, the S1-U interface is directly between the Home eNodeB and the S-GW.

Figure 5.17-2: Configuration of PLMN supporting Home eNodeB Subsystem