Apparatuses and methods for delivery of inter-system non-access stratum (nas) security algorithms
AssigneeMediaTek Singapore Pte. Ltd.
InventorsJarkko ESKELINEN, Marko NIEMI
Life of this patent
Estimating the term…
Abstract
A method for delivery of inter-system NAS security algorithms is provided to be executed by a User Equipment (UE). The method includes the following steps: sending a first REGISTRATION REQUEST message without information of inter-system capability of the UE to a first mobile communication system; and receiving a SECURITY MODE COMMAND message including NAS security algorithms to be used in a second mobile communication system from the first mobile communication system in response to sending the first REGISTRATION REQUEST message.
Claims18
A method for delivery of inter-system Non-Access Stratum (NAS) security algorithms, executed by a User Equipment (UE), the method comprising:
- sending a first REGISTRATION REQUEST message without information of inter-system capability of the UE to a first mobile communication system;
- and
- receiving a SECURITY MODE COMMAND message comprising NAS security algorithms to be used in a second mobile communication system from the first mobile communication system in response to sending the first REGISTRATION REQUEST message.
A method for delivery of inter-system Non-Access Stratum (NAS) security algorithms, executed by a User Equipment (UE), the method comprising:
- receiving, from a first mobile communication system, NAS security algorithms to be used in a second mobile communication system in response to a handover or a reselection of the UE from the first mobile communication system to the second mobile communication system;
- and
- applying the NAS security algorithms to be used in the second mobile communication system after the handover or the reselection of the UE from the first mobile communication system to the second mobile communication system.
A method for delivery of inter-system Non-Access Stratum (NAS) security algorithms, executed by a User Equipment (UE), the method comprising:
- sending a REGISTRATION REQUEST message without information of inter-system capability of the UE to a first mobile communication system;
- performing a first security mode control procedure with the first mobile communication system, wherein NAS security algorithms to be used in a second mobile communication system are not communicated to the UE during the first security mode control procedure in response to the REGISTRATION REQUEST message not comprising the information of inter-system capability of the UE;
- and
- receiving the NAS security algorithms to be used in the second mobile communication system from the first mobile communication system in response to the UE supporting inter-system capability.
Dependencies are inferred from the claim text.