5.4.1 Load Balancing

28.6273GPPRelease 17RequirementsSelf-Organizing Networks (SON) Policy Network Resource Model (NRM) Integration Reference Point (IRP)Telecommunication managementTS

1. Overlapping Coverage

In this scenario, two same size cells overlap each other. Cell A and cell B both cover the same area. The load balancing between cell A and Cell B may be considered. The load balancing could be carried out between Cell A and Cell B regardless of the UE location within the coverage of the cells.

Cell A

Cell B

LB Area

Figure 5.4.1-1: Overlapping Coverage

Hierarchical Coverage

In this scenario, two different size cells overlap each other. Cell B that has a smaller area is covered totally by cell A, which has a bigger size. The load balancing between cell A and Cell B may be considered. The load balancing could be carried out from Cell B to Cell A regardless of the UE location within the coverage of the cell B. Only UE located in the overlapping coverage could be considered in the scenario of Cell A to Cell B.

Cell B

Cell A

LB Area

Figure 5.4.1-2: Hierarchical Coverage

Neighbouring Coverage

In this scenario, there are some overlapped area between two neighbour cell A and cell B. This is the usual neighbour cells scenario in EUTRAN. The load balancing between cell A and Cell B may be considered. Load Balancing could only be carried out for UE located in the overlapping coverage of Cell A and Cell B.

Cell A

Cell B

LB Area

Figure 5.4.1-3: Neighbouring Coverage