Granted Patent B2

US 12,452,821 · App. 17/952,867 · Granted Oct 21, 2025

Inventor: Kisuk Kweon (Suwon-si, KR)

Assignee: Samsung Electronics Co., Ltd.

H04W60/04H04W8/18

Abstract

Claims (45)

1. A method performed by an access and mobility management function (AMF) entity in a wireless communication system, the method comprising:

after performing a deregistration process with respect to user equipment (UE) registration for onboarding of a first UE, storing information associated with the first UE and starting a timer;

while the timer is running, receiving, from a second UE, a UE registration request message for onboarding of the second UE;

based on the stored information, identifying whether the first UE and the second UE are the same UE; and

rejecting the UE registration request message, based on identifying that the first UE and the second UE are the same UE.

2. The method of claim 1 , further comprising:

after the timer expires, receiving, from a third UE, a UE registration request message for onboarding of the third UE; and

accepting the UE registration request message for onboarding of the third UE.

3. The method of claim 1 , further comprising:

based on the UE registration request message being rejected, resetting the timer.

4. The method of claim 1 , wherein the stored information comprises at least one of a subscription concealed identifier (SUCI), a subscription permanent identifier (SUPI), or a permanent equipment identifier (PEI).

5. A method performed by an equipment identity register (EIR) entity in a wireless communication system, the method comprising:

receiving, from an access and mobility management function (AMF) entity, a message for requesting the EIR entity to store information with respect to a first user equipment (UE) identifier;

storing the information with respect to the first UE identifier and starting a timer;

while the timer is running, receiving, from the AMF entity, a message for requesting the EIR entity to store information with respect to a second UE identifier;

identifying whether the second UE identifier corresponds to the first UE identifier; and

based on identifying that the second UE identifier corresponds to the first UE identifier, transmitting, to the AMF entity, a response message comprising information indicating to the AMF entity to reject a UE registration request for onboarding of a UE corresponding to the second UE identifier.

6. The method of claim 5 , further comprising:

receiving an equipment identifier check request message comprising information with respect to a third UE identifier;

identifying whether the third UE identifier corresponds to the first UE identifier;

based on identifying that the third UE identifier corresponds to the first UE identifier, transmitting, to the AMF entity, an equipment identifier check response message comprising information indicating to the AMF entity to reject a UE registration request for onboarding of a UE corresponding to the third UE identifier.

7. The method of claim 5 , further comprising:

tagging an onboarding indication corresponding to the information with respect to the first UE identifier,

wherein the response message further comprises the onboarding indication.

8. The method of claim 5 , further comprising:

identifying whether the timer expires; and

based on identifying that the timer expires, deleting the information with respect to the first UE identifier.

9. The method of claim 5 , wherein the information with respect to the first UE identifier comprises a permanent equipment identifier (PEI).

10. The method of claim 5 , wherein the message for requesting the EIR entity to store the information with respect to the first UE identifier is received, after a UE registration process for onboarding of a UE corresponding to the first UE identifier is performed.

11. An access and mobility management function (AMF) entity in a wireless communication system, the AMF entity comprising:

a transceiver; and

at least one processor configured to:

after performing a deregistration process with respect to user equipment (UE) registration for onboarding of a first UE, store information associated with the first UE and start a timer,

while the timer is running, receive, from a second UE, a UE registration request message for onboarding of the second UE,

based on the stored information, identify whether the first UE and the second UE are the same UE, and

reject the UE registration request message, based on identifying that the first UE and the second UE are the same UE.

12. The AMF entity of claim 11 , wherein the at least one processor is further configured to:

after the timer expires, receive, via the transceiver, from a third UE, a UE registration request message for onboarding of the third UE, and

accept the UE registration request message for onboarding of the third UE.

13. The AMF entity of claim 11 , wherein the at least one processor is further configured to reset the timer, based on the UE registration request message being rejected.

14. The AMF entity of claim 11 , wherein the stored information comprises at least one of a subscription concealed identifier (SUCI), a subscription permanent identifier (SUPI), or a permanent equipment identifier (PEI).

15. A method performed by an access and mobility management function (AMF) entity in a wireless communication system, the method comprising:

after a user equipment (UE) registration process for onboarding of a UE corresponding to a first UE identifier is performed, transmitting, to an equipment identity register (EIR) entity, a message for requesting the EIR entity to store information with respect to the first UE identifier;

transmitting, to the EIR entity, a message for requesting the EIR entity to store information with respect to a second UE identifier, wherein the second UE identifier corresponds to the first UE identifier; and

receiving, from the EIR entity, a response message comprising information indicating to the AMF entity to reject a UE registration request for onboarding of a UE corresponding to the second UE identifier.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (38)