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AssigneeNortel Networks Limited
InventorsGeng Wu, Mo-Han Fong
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System components of cellular wireless networks are shared during and after a mobile station handover from a first cellular wireless network (system A) to a second cellular wireless network (system B). According to one aspect, layer 2/3 call control functions are anchored in a base station controller (BSC) of system A, even after a data communication is handed over from system A to system B. According to another aspect, a link layer supporting the data communication is anchored in the BSC of system A servicing the data communication. In this case, the BSC of system A interfaces with a serving BTS of system B to service the ongoing data communication. According to still another aspect, the link layer is handed over to system B but the link layer of system B continues to use a link layer transmit buffer of system A that remains in the servicing BSC of system A.
A method for servicing a data communication for a mobile station during and after handover of the mobile station from a first wireless network to a second wireless network, the method comprising:
The method of 3, wherein the second set of data communication functions includes link layer data buffering functions.
A base station controller of a first wireless network, the base station controller comprising:
The base station controller of 13, wherein the second set of data communication functions includes link layer data buffering functions performed by the base station controller of the second wireless network.
A plurality of software instructions stored on a media for execution by a base station controller, the plurality of software instructions comprising:
Dependencies are inferred from the claim text.