Patent ID: 8170559

Claim:
A method for processing communication service handover of a mobile communication device between femtocell base stations through a network device, comprising the steps of: creating in the network device a permission list containing at least one of the femtocell base stations that allows the mobile communication device to access thereto in the coverage of the femtocell base stations and setting a communication alert value and a signal capture time period; detecting by the network device signal strength of the femtocell base station currently connected to the mobile communication device, and when the detected signal strength is less than the communication alert value having the network device perform a timing operation according to the signal capture time period so as to continuously capture the signal strength of the femtocell base station currently connected to the mobile communication device and other femtocell base stations in the permission list until the elapsed time measured through the timing operation reaches the signal capture time period, and creating a priority list according to the signal strength of said other femtocell base stations; and when the signal strength of the femtocell base station currently connected to the mobile communication device is less than that of the femtocell base station with highest priority in the priority list having the network device choose the femtocell base station with highest priority as a target femtocell base station for handover of the mobile communication device.