Patent ID: 6799039
Filing Date: 2004-09-28
Classification: H04W

Abstract:
A method for servicing a data communication for a mobile station before, during and after handover of the mobile station from a first wireless network to a second wireless network, the method comprising:centralized link layer protocol functions of a base station controller of the first wireless network and distributed link layer protocol functions of a base station of the first wireless network servicing the mobile station before handover; initiating a handover of the mobile station from the first wireless network to the second wireless network; determining a first set of data communication functions to be serviced by the first wireless network after handover, including the centralized link layer protocol functions of the base station controller of the first wireless network; determining a second set of data communication functions to be serviced by the second wireless network after handover, wherein the second set of data communication functions include at least wireless link functions and distributed link layer protocol functions of a base station of the second wireless network; handing over the mobile station from the first wireless network to the second wireless network; and servicing the mobile station after handover using the first set of data communication functions provided by the first wireless network and the second set of data communication functions performed by the second wireless network.