1. UE does the measurement according to the measurement configuration set by EUTRAN. In this example, UE detects an EUTRAN cell with Physical ID 3.
2. UE sends the measurement report to the serving cell, using Physical ID to identify different E-UTRAN cells. Here, UE includes the measurements of the cell with Physical ID 3.
3. eNB receives the report and instructs the UE to report Global Cell ID for the cell with Physical ID 3.
4. UE gets the Global Cell ID by reading the BCCH (Broadcast Control Channel) of the detected cell.
5. UE reports the Global Cell ID to the serving cell.
6. The serving eNB updates the neighbour cell list.
7. The serving eNB sends the updated neighbour list to OAM and gets the IP address of the new detected cell from OAM.

1. 8.If required, the serving eNB will establish a new X2 interface with the target eNB.

2.2.2. Coverage and Capacity Optimization

A typical operational task is to optimize the network according to coverage and capacity. The traditional way is to find the problems by drive tests and use planning tools to find possible solutions. This use case aims at discovering the coverage and capacity problems automatically through the measurements at the eNB and those reported by UEs. It minimizes the human intervention and reduces the feedback delay.

Objective:

• Optimization of network coverage
• Maximize the system capacity

Expected results:

• Continuous coverage
• Increased capacity of the system
• Interference reduction
• Controlled cell edge performance
• Savings on drive tests
• Minimized human intervention in network management and optimization tasks
• Self-healing in case of equipment (e.g. eNB) failure by automatic reconfiguration of surrounding eNBs.