Apparatus, system, and method for performing GUTI reallocation
AssigneeApple Inc.
InventorsShivani Suresh Babu, Lakshmi N. Kavuri, Krisztian Kiss
Life of this patent
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Abstract
Apparatuses, systems, and methods for refreshing a Global Unique Temporary Identifier GUTI of a user equipment UE. The UE may receive a GUTI from an Access Mobility Function AMF as part of a registration process. After a timer has expired, the UE may receive a new GUTI from the AMF. The timer may be provided by the UE as a request for use by the AMF. Alternatively, the timer may be used by the UE and the UE may request the new GUTI upon expiry of the timer, e.g., using an existing message or a new message, as desired.
Claims20
A non-transitory computer accessible memory medium storing program instructions executable by a processor of an access mobility function (AMF) to:
- perform a registration procedure through a first message exchange with a user equipment (UE), wherein performing the registration procedure includes:
- transmitting a first fifth generation (5G) global unique temporary identifier (GUTI) to the UE;
- and
- negotiating a timer having a timer value;
- start the timer after completion of the registration procedure;
- after a first period of time according to the timer value, perform a second message exchange with the UE, wherein said performing the second message exchange includes transmitting a second GUTI to the UE, wherein the UE has transitioned in and out of connected mode at least once while the timer was running.
An apparatus, comprising:
- at least one processing element, wherein the at least one processing element is configured to cause an access mobility function (AMF) to:
- perform a registration procedure through a first message exchange with a user equipment (UE), wherein performing the registration procedure includes:
- transmitting a first fifth generation (5G) global unique temporary identifier (GUTI) to the UE;
- and
- negotiating a timer having a timer value;
- start the timer after completion of the registration procedure;
- after a first period of time according to the timer value, perform a second message exchange with the UE, wherein said performing the second message exchange includes transmitting a second GUTI to the UE, wherein the UE has transitioned in and out of connected mode at least once while the timer was running.
A method, comprising:
- by an access mobility function (AMF):
- performing a registration procedure through a first message exchange with a user equipment (UE), wherein performing the registration procedure includes:
- transmitting a first fifth generation (5G) global unique temporary identifier (GUTI) to the UE;
- and
- negotiating a timer having a timer value;
- starting the timer after completion of the registration procedure;
- after a first period of time according to the timer value, performing a second message exchange with the UE, wherein said performing the second message exchange includes transmitting a second GUTI to the UE, wherein the UE has transitioned in and out of connected mode at least once while the timer was running.
Dependencies are inferred from the claim text.