# US 2022/0046530 A1 · Network selection for supported standalone non-public network (s-snpn)

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- Number: US 2022/0046530 A1
- Document ID: US20220046530A1
- Status: Published application
- Kind: A1
- Application number: 17/365,018
- Filed: 2021-07-01
- Published: 2022-02-10
- Earliest claimed: 2020-08-07
- Assignees: Mediatek Inc.
- Applicants: Mediatek Inc.
- Inventors: Chia-Lin LAI; Chien-Chun HUANG-FU; Yuan-Chieh LIN; Guillaume SEBIRE
- Web page: https://patentgrep.com/patent/US20220046530A1

## CPC

- H04W 48/18: Selecting a network or a communication service
- H04W 48/16: Discovering, processing access restriction or access information
- H04W 84/042: {Public Land Mobile systems, e.g. cellular systems}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from a base station which may be shared by one or more PLMNs and SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a home SP selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the home SP selection list according to a priority order of the candidate networks, and accessing the network selected from the home SP selection list using the HSP subscription.

## Claims

### Claim 1

A method, comprising:
receiving, at a user equipment (UE), system information broadcast from a base station (BS) that is shared by one or more public land mobile networks (PLMNs) and standalone non-public networks (SNPNs), the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of an HSP network is supported, the UE being configured with subscription information of the HSP network, the subscription information including the HSP subscription and a home SP selection list that includes one or more candidate networks each represented by an SNPN identifier including a PLMN identifier (PLMN ID) and at least one SNPN ID with different priorities; and
responsive to the system information including the indication of whether accessing an SNPN using the HSP subscription of the HSP network is supported, selecting a network from the home SP selection list according to a priority order of the candidate networks each represented by an SNPN identifier including a PLMN ID and at least one SNPN ID with different priorities when the UE cannot find a home SP network identifier.

### Claim 2 (depends on 1)

The method of claim 1, wherein the system information further includes a list of supported network identifiers, and the method further comprises:
selecting the HSP network from the home SP selection list to access when the list of supported network identifiers contains the home SP network identifier; and
when the list of supported network identifiers does not contain the home SP network identifier of the HSP network, selecting a first SNPN from the home SP selection list to access when an SNPN identifier of the first SNPN is contained in the list of supported network identifiers.

### Claim 3 (depends on 2)

The method of claim 2, further comprising:
selecting any network when the list of supported network identifiers contains neither the home SP network identifier nor the SNPN identifier in the home SP selection list.

### Claim 4 (depends on 3)

The method of claim 3, further comprising:
switching the UE to operate in a limited service state.

### Claim 5 (depends on 2)

The method of claim 2, wherein the HSP network is a PLMN.

### Claim 6 (depends on 5)

The method of claim 5, further comprising, prior to selecting the first SNPN, switching the UE to operate in an SNPN access mode.

### Claim 7 (depends on 2)

The method of claim 2, wherein the HSP network is an SNPN.

### Claim 8 (depends on 7)

The method of claim 7, further comprising, prior to selecting the HSP network, switching the UE to operate in an SNPN access mode.

### Claim 9

A method, comprising:
receiving, at a UE, system information broadcast from a BS that is shared by one or more PLMNs and SNPNs, the system information including a list of supported network identifiers, the UE being configured with subscription information of an HSP network, the subscription information including HSP subscription of the HSP network and a home SP selection list that includes one or more candidate networks each represented by an SNPN identifier including a PLMN ID and at least one SNPN ID with different priorities;
selecting the HSP network to access when the list of supported network identifiers contains a home SP network identifier of the HSP network; and
when the list of supported network identifiers does not contain the home SP network identifier of the HSP network, selecting a first SNPN from the home SP selection list to access when an SNPN identifier of the first SNPN is contained in the list of supported network identifiers.

### Claim 10 (depends on 9)

The method of claim 9, wherein the system information further includes an indication of whether accessing an SNPN using the HSP subscription of the HSP network is supported.

### Claim 11 (depends on 9)

The method of claim 9, wherein the HSP network is a PLMN.

### Claim 12 (depends on 11)

The method of claim 11, further comprising, prior to selecting the first SNPN, switching the UE to operate in an SNPN access mode.

### Claim 13 (depends on 9)

The method of claim 9, wherein the HSP network is an SNPN.

### Claim 14 (depends on 13)

The method of claim 13, further comprising, prior to selecting the HSP network, switching the UE to operate in an SNPN access mode.

### Claim 15 (depends on 9)

The method of claim 9, further comprising:
selecting any network when the list of supported network identifiers contains neither the home SP network identifier nor the SNPN identifier.

### Claim 16 (depends on 15)

The method of claim 15, further comprising:
switching the UE to operate in a limited service state.

### Claim 17

An apparatus, comprising
receiving circuitry configured to receive system information broadcast from a BS that is shared by one or more PLMNs and SNPNs and subscription information of a HSP network, the subscription information including HSP subscription of the HSP network and a home SP selection list that includes one or more candidate networks each represented an SNPN identifier including a PLMN ID and at least one SNPN ID with different priorities, the system information including an indication of whether accessing an SNPN using the HSP subscription of the HSP network is supported; and
processing circuitry coupled to the receiving circuitry, the processing circuitry configured to responsive to the system information including the indication of whether accessing an SNPN using the HSP subscription of the HSP network is supported, select a network from the home SP selection list according to a priority order of the candidate networks each represented by an SNPN identifier including a PLMN ID and at least one SNPN ID with different priorities.

### Claim 18 (depends on 17)

The apparatus of claim 17, wherein the processing circuitry is further configured to access the network selected from the home SP selection list using the HSP subscription included in the subscription information of the HSP network.

### Claim 19 (depends on 17)

The apparatus of claim 17, wherein the system information further includes a list of supported network identifiers, and the processing circuitry is further configured to:
select the HSP network to access when the list of supported network identifiers contains a home SP network identifier of the HSP network; and
when the list of supported network identifiers does not contain the home SP network identifier of the HSP network, select a first SNPN from the home SP selection list to access when an SNPN identifier of the first SNPN is contained in the list of supported network identifiers.

### Claim 20 (depends on 17)

The apparatus of claim 17, wherein the processing circuitry is further configured to switch the apparatus to operate in an SNPN access mode.