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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsChunbo Wang, Daniel Nilsson, Lars-Bertil Olsson, Stefan Rommer
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The present invention relates to a network node and a method at the network node of handing over a mobile terminal between a first RAT and a second RAT in a wireless communications network. The invention further relates to a computer program performing the method according to the present invention, and a computer program product comprising computer readable medium having the computer program embodied therein. A method at a network node of a packet core network of performing handover of a mobile terminal between a first Radio Access Technology (RAT), and a second RAT in a wireless communications network is provided in an embodiment of the present invention. The method comprises receiving a request for handover of the mobile terminal to the second RAT, establishing a PDN connection with the mobile terminal via the first RAT, and performing handover of the mobile terminal to the second RAT. The method further comprises maintaining PDN connection context for the PDN connection established via the first RAT for a time period, and releasing the PDN connection context at expiry of the time period.
A method by at least one network node of a packet core network of performing handover of a mobile terminal between a first Radio Access Technology, RAT, and a second RAT in a wireless communications system, comprising:
A first network node of a packet core network of performing handover of a mobile terminal between a first Radio Access Technology, RAT, and a second RAT in a wireless communications system, comprising a processing unit and a memory, said memory containing instructions executable by said processing unit, whereby said first network node is operative to:
Dependencies are inferred from the claim text.