DYNAMIC RADIO COVERAGE AREA TRANSITION MANAGEMENT WITH COORDINATED HANDOVER

摘要

In a cellular communication system, a coverage area configuration transition is performed where a compensation service area is expanded to cover at least a portion of an energy saving service area of an energy saving cell employing the same frequency channel as the compensation service area. An energy saving communication station providing the energy saving cell is configured to deactivate the energy saving service area. Handovers to the compensation service area are prepared for the UE devices in the energy saving service area. The energy saving communication station sends a expansion notification to a compensation communication station where the notification at teas!indicates that the compensation service area can be expanded. The energy saving communication station transmits handover commands to the UE devices prior to expansion of the compensation service area and reduction of the energy saving service area.

主权项

1. A method comprising:
establishing handover parameters for a handover procedure to handover each user equipment (UE) device of a plurality of UE devices from an energy saving communication station to a compensation communication station, the energy saving communication station providing wireless service to the UE devices within an energy saving service area and the compensation communication station providing wireless service within a compensation service area; transmitting an expansion notification from the energy saving communication station to the compensation communication station, the expansion notification indicating to the compensation communication station at least that an expansion of the compensation service area can begin; transmitting handover commands to the UE devices after the handover parameters have been established for the plurality of UE devices and after the expansion notification has been transmitted to the compensation communication station; contracting the energy saving service area; and expanding the compensation service area to at least partially overlap a geographical region of the energy saving service area.