METHOD AND ARRANGEMENTS TO RECONFIGURE A RADIO BASE STATION IN A WIRELESS COMMUNICATION SYSTEM

摘要

The present invention relates to a method and a Radio Base Station (RBS) in a wireless communication system that enable a fast and flexible reconfiguration of the system from a first configuration to a second configuration. This is achieved by a solution where the RBS is triggered to initiate a system reconfiguration, and the reconfiguration is performed by starting a new cell with the wanted new configuration in parallel with the original cell. During a certain time period, both the original and the new cell are available. Thereafter the original cell is shut down. The time offset between the start up of the new cell and the shut down of the original cell should be long enough to ensure that all UEs associated with the original cell (active, dormant or idle) can be handed over to or can reselect the new cell. However, the time offset should also be short in order to minimize the interference between the original and the new cell.