# US 2019/0174449 A1 · Technologies to authorize user equipment use of local area data network features and control the size of local area data network information in access and mobility management function

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- Number: US 2019/0174449 A1
- Document ID: US20190174449A1
- Status: Published application
- Kind: A1
- Application number: 16/267,711
- Filed: 2019-02-05
- Published: 2019-06-06
- Earliest claimed: 2018-02-09
- Assignees: Intel Corporation
- Applicants: Intel Corporation
- Inventors: Changhong SHAN; Alexandre Saso Stojanovski
- Web page: https://patentgrep.com/patent/US20190174449A1

## CPC

- H04W 60/04: using triggered events
- H04W 12/06: Authentication
- H04W 60/00: Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W 76/11: Allocation or use of connection identifiers
- H04W 8/186: {Processing of subscriber group data}
- H04W 8/205: {Transfer to or from user equipment or user record carrier}
- H04W 48/02: Access restriction performed under specific conditions
- H04W 48/17: {Selecting a data network PoA [Point of Attachment]}
- 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

Systems, apparatuses, methods, and computer-readable media are provided for indicating local area data network (LADN) data network names (DNNs). In embodiments, a user equipment (UE) provides a list of configured LADN DNNs in a registration request message during a registration procedure. An Access and Mobility Management Function (AMF) determines LADN information for the UE by looking into configured LADN DNNs in the AMF and/or retrieved LADN authorization/subscription information. The LADN information includes a list of LADN DNNs and corresponding LADN service area(s) that the UE can use, including LADN DNNs that the UE can use in a current registration area. The AMF sends the LADN information to the UE in a registration accept message. Other embodiments may be described and/or claimed.

## Claims

### Claim 1

One or more computer-readable storage media (CRSM) comprising instructions, wherein execution of the instructions by one or more processors of a user equipment (UE) is to cause the UE to:
generate a registration request message to include one or more local area data network (LADN) data network names (DNNs); and
control transmission of the registration request message to a radio access network (RAN) node.

### Claim 2 (depends on 1)

The one or more CRSM of claim 1, wherein execution of the instructions is to cause the UE to:
generate the registration request message during an initial registration procedure, a mobility registration update procedure, a periodic registration update procedure, or an emergency registration procedure.

### Claim 3 (depends on 1)

The one or more CRSM of claim 1, wherein execution of the instructions is to cause the UE to:
detect a change to the one or more LADN DNNs; and
generate the registration request message to include the one or more LADN DNNs to indicate the change.

### Claim 4 (depends on 1)

The one or more CRSM of claim 1, wherein execution of the instructions is to cause the UE to:
receive, over an N1 interface, a registration accept message from an Access and Mobility Management Function (AMF), the registration accept message to include LADN information for a list of one or more LADNs available to be used by the UE in a registration area.

### Claim 5 (depends on 4)

The one or more CRSM of claim 4, wherein the list of one or more LADNs includes at least one LADN DNN of the one or more LADN DNN(s) to which the UE is subscribed.

### Claim 6 (depends on 4)

The one or more CRSM of claim 4, wherein the list of one or more LADNs includes LADN service area information and an LADN DNN for each of the one or more LADNs.

### Claim 7 (depends on 1)

The one or more CRSM of claim 1, wherein execution of the instructions is to cause the UE to:
generate the registration message to include a registration type information element (IE) and an LADN indication IE, the registration type IE to include a value to indicate a type of the registration request message and the LADN indication IE to include the LADN DNN(s).

### Claim 8

Integrated circuitry (IC) to be implemented as an Access and Mobility Management Function (AMF), the IC comprising:
processor circuitry arranged to generate a registration accept message to include local area data network (LADN) information based on one or more LADN data network names (DNNs) or a request for LADN information included in a registration request message, the LADN information to include a list of available LADNs; and
interface circuitry communicatively coupled with the processor circuitry, the interface circuitry arranged to obtain the registration request message from a user equipment (UE) via a radio access network (RAN) node, and send the registration accept message to the UE.

### Claim 9 (depends on 8)

The IC of claim 8, wherein the registration request message is to indicate a type of the registration request message, the type of the registration request message including one of an initial registration message, a mobility registration update message, a periodic registration update message, or an emergency registration message.

### Claim 10 (depends on 8)

The IC of claim 8, wherein the interface circuitry is arranged to obtain, from a Unified Data Management (UDM) entity, subscription data related to the UE, the subscription data to include a subscribed DNN list, the subscribed DNN list to indicate one or more DNNs to which the UE is subscribed.

### Claim 11 (depends on 10)

The IC of claim 10, wherein, when the registration request message includes the one or more LADN DNNs, the processor circuitry is arranged to generate the list of available LADNs to include one or more LADNs available to the UE based on the subscribed DNN list.

### Claim 12 (depends on 10)

The IC of claim 10, wherein, when the registration request message includes the request for LADN information, the processor circuitry is arranged to generate the list of available LADNs to include all DNNs configured in the AMF or one or more LADN DNN(s) indicated by the subscribed DNN list.

### Claim 13 (depends on 8)

The IC of claim 8, wherein the interface circuitry is arranged to send the registration accept message to the UE over an N1 reference point.

### Claim 14 (depends on 13)

The IC of claim 13, wherein the interface circuitry is arranged to receive the registration request message from the RAN node over an N2 reference point.

### Claim 15 (depends on 8)

The IC of claim 8, wherein the list of available LADNs is to indicate an LADN service area for each an LADN DNN in the list of available LADNs.

### Claim 16 (depends on 8)

The IC of claim 8, wherein the processor circuitry is arranged to generate the registration accept message to include an LADN information, information element (IE), the LADN information IE to include the list of available LADNs.

### Claim 17 (depends on 8)

The IC of claim 8, wherein the IC is a system-on-chip (SoC) or a multi-chip package (MCP).

### Claim 18

A computing system to be implemented as a radio access network (RAN) node, the computing system comprising:
processor circuitry arranged to obtain a radio resource control (RRC) message from a user equipment (UE) via radiofrequency (RF) circuitry, the RRC message to include a registration request message, the a registration request message to include one or more local area data network (LADN) data network names (DNNs) or a request for LADN information; and
network interface circuitry communicatively coupled with the processor circuitry, the network interface circuitry arranged to:
send the registration request message to from an Access and Mobility Management Function (AMF), and
obtain a registration accept message from the AMF, the registration accept message to include LADN information based on the registration request message, the LADN information to include a list of available LADNs, and the list of available LADNs is to indicate an LADN service area for each LADN DNN in the list of available LADNs.

### Claim 19 (depends on 18)

The computing system of claim 18, wherein the registration request message is to indicate a type of the registration request message, the type of the registration request message including one of an initial registration message, a mobility registration update message, a periodic registration update message, or an emergency registration message.

### Claim 20 (depends on 18)

The computing system of claim 18, wherein the network interface circuitry is arranged to provide the registration accept message to RF circuitry for transmission to the UE.

### Claim 21 (depends on 18)

The computing system of claim 18, wherein, when the registration request message includes the one or more LADN DNNs, the list of available LADNs is to include one or more LADNs available to the UE based on subscription information associated with the UE.

### Claim 22 (depends on 18)

The computing system of claim 18, wherein, when the registration request message includes the request for LADN information, the list of available LADNs is to include all DNNs configured in the AMF or one or more LADN DNN(s) available to the UE based on subscription information associated with the UE.

### Claim 23 (depends on 18)

The computing system of claim 18, wherein the network interface circuitry is arranged to, with the RF circuitry, convey the registration accept message from the AMF to the UE over an N1 interface using non-access stratum (NAS) signaling.

### Claim 24 (depends on 18)

The computing system of claim 18, wherein the network interface circuitry is arranged to send the registration request message to the AMF over an N2 interface.

### Claim 25 (depends on 18)

The computing system of claim 18, wherein the RAN node is communicatively coupled with one or more radio front end modules (RFEMs) via the network interface circuitry, wherein the one or more RFEMs include the RF circuitry.

### Claim 26 (depends on 18)

The computing system of claim 18, wherein the RAN node comprises the RF circuitry, and the RF circuitry is communicatively coupled with the processor circuitry and the network interface circuitry.