# US 11,122,415 B2 · Method and device using network slicing in mobile communication system

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- Number: US 11,122,415 B2
- Document ID: US11122415B2
- Status: Granted
- Kind: B2
- Application number: 16/379,598
- Filed: 2019-04-09
- Published: 2019-10-10
- Granted: 2021-09-14
- Earliest claimed: 2018-04-09
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Hoyeon Lee; Youngkyo Baek; Jungje Son
- Web page: https://patentgrep.com/patent/US11122415B2

## CPC

- H04W 8/08: Mobility data transfer
- H04L 41/0894: Policy-based network configuration management
- H04L 41/0895: Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
- H04W 48/18: Selecting a network or a communication service
- H04W 72/53: based on regulatory allocation policies
- H04W 80/10: adapted for {application} session management, e.g. SIP [Session Initiation Protocol] {(connection management H04W76/00; arrangements for session management H04L67/14)}
- H04W 88/023: {with message or information receiving capability}
- H04W 88/10: adapted for operation in multiple networks, e.g. multi-mode access points
- H04W 8/18: Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W 8/205: {Transfer to or from user equipment or user record carrier}
- H04W 92/14: between access point controllers and backbone network device
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

According to the disclosure, a communication method using a network slice by an access and mobility management function (AMF) comprises receiving one of subscribed single-network slice selection assistance information (S-NSSAI) or network slice selection policy (NSSP) information, requesting and receiving the other, non-received information of the subscribed S-NSSAI or the NSSP information, and transmitting a first message including the received subscribed S-NSSAI and the received NSSP information to a user equipment (UE).

## Claims

### Claim 1

A method of a user equipment (UE), the method comprising:
determining whether at least one single-network slice selection assistance information (S-NSSAI) in configured NSSAI stored in the UE is included in network slice selection policy (NSSP) information stored in the UE;
transmitting, to an access and mobility management function (AMF), a policy provisioning request message including the NSSP information in response to the at least one S-NSSAI in the configured NSSAI being not included in the NSSP information;
receiving, from the AMF, a response message including updated NSSP information as a response to the policy provisioning request message; and
updating a policy of the UE based on the updated NSSP information included in the response message,
wherein an update request message including the NSSP information is from the AMF to a policy control function (PCF) in response to the policy provisioning request message.

### Claim 2 (depends on 1)

The method of claim 1, wherein the updated NSSP information included in the response message is obtained from the PCF.

### Claim 3

A user equipment (UE), the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver, the at least one processor configured to:
determine whether at least one single-network slice selection assistance information (S-NSSAI) in configured NSSAI stored in the UE is included in network slice selection policy (NSSP) information stored in the UE;
transmit, to an access and mobility management function (AMF), a policy provisioning request message including the NSSP information in response to the at least one S-NSSAI in the configured NSSAI being not included in the NSSP information;
receive, from the AMF, a response message including updated NSSP information as a response to the policy provisioning request message; and
update a policy of the UE based on the updated NSSP information included in the response message,
wherein an update request message including the NSSP information is from the AMF to a policy control function (PCF) in response to the policy provisioning request message.

### Claim 4 (depends on 3)

The UE of claim 3, wherein the updated NSSP information included in the response message is obtained from the PCF.