Terminal performing registration in non-3GPP access and method performed by same
AssigneeLG Electronics Inc.
InventorsSangmin Park, Jaehyun Kim
Life of this patent
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Abstract
One disclosure of the present specification provides a method performed by a terminal that performs registration in a non-3rd generation partnership project (3GPP) access. According to the method, the terminal may receive a rejection message including a value of a back-off timer. In addition, the terminal may determine a value of a non-3GPP de-registration timer on the basis of the value of the back-off timer. In this case, the value of the non-3GPP de-registration timer may be determined to be greater than the value of the back-off timer.
Claims15
A method performed by a user equipment which has performed a registration in a non-3rd generation partnership project (3GPP) access, the method comprising:
- receiving a registration reject message including a timer value from an Access and Mobility management Function (AMF) node;
- setting a value of a non-3GPP de-registration timer to be 4 minutes greater than the timer value;
- and
- starting or resetting the non-3GPP de-registration timer based on a signaling connection over the non-3GPP access being released,
- wherein the value of the non-3GPP de-registration timer is less than a value of a non-3GPP implicit de-registration timer, and
- wherein the non-3GPP implicit de-registration timer is started by the AMF node.
A user equipment (UE) which has performed a registration in a non-3rd generation partnership project (3GPP) access, the UE comprising:
- a transceiver and a processor,
- wherein the processor is configured to:
- control the transceiver to receive a registration reject message including a timer value from an Access and Mobility management Function (AMF) node;
- set a value of a non-3GPP de-registration timer to be 4 minutes greater than the timer value;
- start or reset the non-3GPP de-registration timer based on a signaling connection over the non-3GPP access being released,
- wherein the value of the non-3GPP de-registration timer is less than a value of a non-3GPP implicit de-registration timer, and
- wherein the non-3GPP implicit de-registration timer is started by the AMF node.
A method performed by an Access and Mobility management Function (AMF) node for a registration in a non-3rd generation partnership project (3GPP) access, the method comprising:
- transmitting a registration reject message including a timer value to a user equipment (UE);
- and
- starting a non-3GPP implicit de-registration timer for the UE,
- wherein a value of a non-3GPP de-registration timer of the UE is set to be 4 minutes greater than the timer value,
- wherein the non-3GPP de-registration timer is started or reset by the UE based on a signaling connection over the non-3GPP access being released, and
- wherein the value of the non-3GPP de-registration timer is less than a value of the non-3GPP implicit de-registration timer.
Dependencies are inferred from the claim text.