# US 12,114,254 B2 · Method and apparatus for managing MT-service information

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- Number: US 12,114,254 B2
- Document ID: US12114254B2
- Status: Granted
- Kind: B2
- Application number: 17/628,172
- Filed: 2020-07-17
- Published: 2022-09-08
- Granted: 2024-10-08
- Earliest claimed: 2019-07-19
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Lalith Kumar; Hoyeon Lee; Erik Arthur Guttman
- Web page: https://patentgrep.com/patent/US12114254B2

## CPC

- H04W 48/18: Selecting a network or a communication service
- H04W 8/183: {Processing at user equipment or user record carrier}
- H04W 60/005: {Multiple registrations, e.g. multihoming}
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- H04W 76/20: Manipulation of established connections
- H04W 76/18: Management of setup rejection or failure
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method for managing mobile terminated (MT)-service information to a multi-subscriber identity module (SIM) user equipment (UE) over non-3rd generation partnership project (N3GPP) access in a wireless communication network is provided. The method includes determining, by the multi-SIM UE, an on-going service on a first SIM of the multi-SIM UE over a 3GPP access; and managing, by the multi-SIM UE, the MT-service information for a second SIM of the multi-SIM UE using the N3GPP access based on the on-going service on the 3GPP access of the first SIM of the multi-SIM UE.

## Claims

### Claim 1

A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from an access and mobility management function (AMF) over non-3rd generation partnership project (3GPP) access, a notification message indicating 3GPP access;
identifying that the UE is capable of multiple universal subscriber identity modules (multi-USIM) and that the UE is not able to initiate a service request procedure over the 3GPP access in response to the notification message due to a UE implementation constraint; and
transmitting, to the AMF over the non-3GPP access, a notification response message indicating an inability of the UE to initiate the service request procedure.

### Claim 2 (depends on 1)

The method of claim 1, wherein the
initiation of the service request procedure is associated with transmission of a service request message to the AMF.

### Claim 3 (depends on 1)

The method of claim 1, wherein the service request procedure is associated with a mobile terminated (MT) service.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
identifying that a service request procedure over the 3GPP access is ongoing.

### Claim 5 (depends on 1)

The method of claim 1, wherein the notification message is related to a type of a service to be initiated over the 3GPP access.

### Claim 6

A method performed by an access and mobility management function (AMF) in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE) over non-3rd generation partnership project (3GPP) access, a notification message indicating 3GPP access; and
in case that the UE is capable of multiple universal subscriber identity modules (multi-USIM) and that the UE
is not able to initiate a service request procedure over the 3GPP access in response to the notification message due to a UE implementation constraint, receiving, from the UE over the non-3GPP access, a notification response message indicating an inability of the UE to initiate the service request procedure.

### Claim 7 (depends on 6)

The method of claim 6, wherein the initiation of the service request procedure is associated with reception of a service request message from the UE.

### Claim 8 (depends on 6)

The method of claim 6, wherein the service request procedure is associated with a mobile terminated (MT) service.

### Claim 9

A user equipment (UE) in a wireless communication system, the UE comprising:
at least one processor configured to:
receive, from an access and mobility management function (AMF) over non-3rd generation partnership project (3GPP) access, a notification message indicating 3GPP access,
identify that the UE is capable of multiple universal subscriber identity modules (multi-USIM) and that the UE is not able to initiate a service request procedure over the 3GPP access in response to the notification message due to a UE implementation constraint, and
transmit, to the AMF over the non-3GPP access, a notification response message indicating an inability of the UE to initiate the service request procedure.

### Claim 10 (depends on 9)

The UE of claim 9, wherein the initiation of the service request procedure is associated with transmission of a service request message to the AMF.

### Claim 11 (depends on 9)

The UE of claim 9, wherein the at least one processor is further configured to identify that a service request procedure over the 3GPP access is ongoing.

### Claim 12 (depends on 9)

The UE of claim 9, wherein the service request procedure is associated with a mobile terminated (MT) service.