# US 12,225,616 B2 · Method and device for processing NAS message information in wireless communication system

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- Number: US 12,225,616 B2
- Document ID: US12225616B2
- Status: Granted
- Kind: B2
- Application number: 17/310,100
- Filed: 2020-02-13
- Published: 2022-04-21
- Granted: 2025-02-11
- Earliest claimed: 2019-02-15
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Kyungjoo Suh; Kisuk Kweon; Sunghoon Kim; Sangjun Moon; Yoonseon Han
- Web page: https://patentgrep.com/patent/US12225616B2

## CPC

- H04W 76/25: Maintenance of established connections
- H04W 60/04: using triggered events
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- H04W 4/50: Service provisioning or reconfiguring
- H04W 8/26: Network addressing or numbering for mobility support
- H04W 60/00: Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The disclosure provides a method, performed by a user equipment (UE), of processing a non-access stratum (NAS) message, the method including: receiving a paging request message from an access and mobility management function (AMF); transmitting a service request message to the AMF; receiving a service accept message from the AMF; receiving a session management message from a session management function (SMF); and after receiving the session management message, receiving a UE configuration update command message from the AMF.

## Claims

### Claim 1

A method, performed by a user equipment (UE), of processing a non-access stratum (NAS) message, the method comprising:
receiving a paging request message from an access and mobility management function (AMF);
transmitting, to the AMF, a service request message while a session management message that is triggered by a session management function (SMF) is pending at the SMF, wherein the UE is in an idle state;
receiving, from the AMF, a service accept message corresponding to the service request message;
receiving, from the AMF, the session management message that is triggered by the SMF; and
after receiving the session management message, receiving a UE configuration update command message from the AMF, wherein a new 5th generation-global unique temporary identifier (5G-GUTI) is allocated after receiving the session management message.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
transmitting a registration request message to the AMF; and
receiving a registration accept message from the AMF.

### Claim 3 (depends on 1)

The method of claim 1, wherein the UE configuration update command message comprises the new 5G-GUTI.

### Claim 4

A method, performed by an access and mobility management function (AMF), of processing a non-access stratum (NAS) message, the method comprising:
transmitting a paging request message to a user equipment (UE);
receiving, from the UE, a service request message while a session management message that is triggered by a session management function (SMF) is pending at the SMF, wherein the UE is in an idle state;
transmitting, to the UE, a service accept message corresponding to the service request message;
transmitting, to the UE, the session management message that is triggered by the SMF; and
after transmitting the session management message, transmitting a UE configuration update command message to the UE, wherein a new 5th generation-global unique temporary identifier (5G-GUTI) is allocated after receiving the session management message.

### Claim 5 (depends on 4)

The method of claim 4, further comprising:
receiving a registration request message from the UE; and
transmitting a registration accept message to the UE.

### Claim 6 (depends on 4)

The method of claim 4, wherein the UE configuration update command message comprises the new 5G-GUTI.

### Claim 7

A user equipment (UE) for processing a non-access stratum (NAS) message, the UE comprising:
a transceiver; and
a processor combined with the transceiver and configured to:
receive a paging request message from an access and mobility management function (AMF),
transmit, to the AMF, a service request message while a session management message that is triggered by a session management function (SMF) is pending at the SMF, wherein the UE is in an idle state,
receive, from the AMF, a service accept message corresponding to the service request message,
receive, from the AMF, the session management message that is triggered by the SMF, and
after receiving the session management message, receive a UE configuration update command message from the AMF, wherein a new 5th generation-global unique temporary identifier (5G-GUTI) is allocated after receiving the session management message.

### Claim 8 (depends on 7)

The UE of claim 7, wherein the processor is configured to transmit a registration request message to the AMF, and receive a registration accept message from the AMF.

### Claim 9 (depends on 7)

The UE of claim 7, wherein the UE configuration update command message comprises the new 5G-GUTI.

### Claim 10

An access and mobility management function (AMF) for processing a non-access stratum (NAS) message, the AMF comprising:
a transceiver; and
a processor combined with the transceiver and configured to:
transmit a paging request message to a user equipment (UE),
receive, from the UE, a service request message while a session management message that is triggered by a session management function (SMF) is pending at the SMF, wherein the UE is in an idle state,
transmit, to the UE, a service accept message corresponding to the service request message, and
transmit, to the UE, the session management message that is triggered by the SMF, and
after transmitting the session management message, transmit a UE configuration update command message to the UE, wherein a new 5th generation-global unique temporary identifier (5G-GUTI) is allocated after receiving the session management message.

### Claim 11 (depends on 10)

The AMF of claim 10, wherein the UE configuration update command message comprises the new 5G-GUTI.

### Claim 12 (depends on 10)

The AMF of claim 10, wherein the processor is further configured to receive a registration request message from the UE; and transmit a registration accept message to the UE.