Method, Apparatus and System for Key Derivation
AssigneeHuawei Technologies Co., Ltd.
InventorsMin HUANG, Jing CHEN, Aiqin ZHANG, Xiaohan LIU
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Abstract
Method, apparatus and systems are provided for key derivation. A target base station receives multiple keys derived by a source base station, where the keys correspond to cells of the target base station. The target base station selects a key corresponding to the target cell after obtaining information regarding a target cell that a user equipment (UE) is to access. An apparatus for key derivation and a communications system are also provided.
Claims11
A machine-readable medium comprising instructions which, when executed by a machine, cause the machine to perform operations including:
- receiving a measurement report from a user equipment, UE;
- making a handover decision;
- deriving multiple keys corresponding to multiple cells of a target base station for the;
- and
- transmitting a handover request message carrying the multiple keys to the target base station.
A machine-readable medium comprising instructions which, when executed by a machine, cause the machine to perform operations including:
- receiving a handover request message from a source base station for the UE, the handover request message comprising multiple keys corresponding to multiple cells of the target base station for the UE,
- receiving a radio resource control (RRC) connection reestablishment request from the UE;
- and
- selecting a key from the multiple keys for using in communication with the UE, the selected key corresponding to a target cell that the UE requests to access.
Dependencies are inferred from the claim text.