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US-20260129566-A1 - TRUSTED NON-3GPP ACCESS NETWORK SELECTION

US20260129566A1US 20260129566 A1US20260129566 A1US 20260129566A1US-20260129566-A1

Abstract

The application relates to trusted non-3GPP access network selection. Apparatus for trusted non-3GPP access network selection is used in User Equipment (UE) and includes processor circuitry configured to cause the UE to, when the UE is operating in Stand-alone Non-Public Network (SNPN) access mode: receive, from a Wireless Local Area Network (WLAN), an Access Network Query Protocol (ANQP) information element, wherein the ANQP information element is an SNPN list with trusted 5G connectivity information element indicating one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN; and select, based on the SNPN list with trusted 5G connectivity information element, a SNPN with trusted 5G connectivity for trusted non-3GPP access to a 5G Core (5GC) network.

Inventors

  • Thomas Luetzenkirchen

Assignees

  • INTEL CORPORATION

Dates

Publication Date
20260507
Application Date
20231025

Claims (20)

  1. 1 - 20 . (canceled)
  2. 21 . An apparatus for trusted non-3GPP access network selection, wherein the apparatus is used in User Equipment (UE) and comprises processor circuitry configured to cause the UE to, when the UE is operating in Stand-alone Non-Public Network (SNPN) access mode: receive, from a Wireless Local Area Network (WLAN), an Access Network Query Protocol (ANQP) information element, wherein the ANQP information element is an SNPN list with trusted 5G connectivity information element indicating one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN; and select, based on the SNPN list with trusted 5G connectivity information element, a SNPN with trusted 5G connectivity for trusted non-3GPP access to a 5G Core (5GC) network.
  3. 22 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains a SNPN identifier associated with each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN.
  4. 23 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains one or more Group Identifiers for Network selection (GINs) supported by each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN.
  5. 24 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains SNPN access information associated with each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN.
  6. 25 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains, for each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN, information indicating whether the SNPN supports access using credentials from a credentials holder.
  7. 26 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains, for each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN, information indicating whether the SNPN allows registration attempts with credentials from a credentials holder from UEs that are not explicitly configured to select the SNPN.
  8. 27 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains, for each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN, information indicating whether the SNPN supports SNPN onboarding services.
  9. 28 . The apparatus of claim 21 , wherein the SNPN list with trusted 5G connectivity information element contains, for each of the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN, information indicating whether the SNPN supports emergency services.
  10. 29 . The apparatus of claim 21 , wherein the processor circuitry is further configured to cause the UE to create a prioritized list of available WLANs based on WLAN Selection Policy (WLANSP) rules and receive the ANQP information element from each WLAN indicated by the prioritized list of available WLANs.
  11. 30 . The apparatus of claim 29 , wherein when the UE is not operating in SNPN access mode, the WLANSP rules are obtained from a Public Land Mobile Network (PLMN).
  12. 31 . The apparatus of claim 29 , wherein when the UE is operating in SNPN access mode and supports access to an SNPN using credentials from a credential holder, the WLANSP rules are obtained from the credentials holder.
  13. 32 . The apparatus of claim 31 , wherein the processor circuitry is further configured to cause the UE to, for each WLAN indicated by the prioritized list of available WLANs: when both the WLAN and the UE supports ANQP, send an ANQP request message to request a list of Network Access Identifier (NAI) realms or SNPN identifiers associated with the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN; or when either the WLAN or the UE does not support ANQP, send an Extensible Authentication Protocol (EAP) response or identity message to request the list of NAI realms or SNPN identifiers associated with the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN.
  14. 33 . The apparatus of claim 32 , wherein the processor circuitry is further configured to cause the UE to, for each WLAN indicated by the prioritized list of available WLANs: indicate, to a user of the UE, the one or more SNPNs with trusted 5G connectivity that can be selected from the WLAN for the user to select based on a user preference.
  15. 34 . The apparatus of claim 32 , wherein when the UE is registered over 3GPP access, the WLANSP rules are obtained from a subscribed SNPN or PLMN subscription used for registration over 3GPP access.
  16. 35 . The apparatus of claim 32 , wherein when the UE is not registered over 3GPP access, the WLANSP rules are obtained from a subscribed SNPN or PLMN subscription selected from a list of subscriber data maintained by the UE.
  17. 36 . The apparatus of claim 34 , wherein a WLAN is included in the prioritized list of available WLANs when the UE receives a list of domain names and a list of SNPN identifiers from the WLAN, the list of domain names includes a home network domain name associated with an SNPN identifier included in the PLMN subscription, and the list of SNPN identifiers includes a SNPN identifier associated with the subscribed SNPN.
  18. 37 . The apparatus of claim 34 , wherein the processor circuitry is further configured to cause the UE to: when a NAI realm included in the list of NAI realms or SNPN identifiers is associated with a Registered SNPN (RSNPN) for 3GPP access, if the NAI realm does not match a NAI realm converted from any SNPN identifier included in a temporarily or permanently forbidden SNPNs list for non-3GPP access associated with the PLMN subscription, then select the RSNPN for trusted non-3GPP access to the 5GC network, or else select, in priority order of entries in the list of NAI realms or SNPN identifiers, a corresponding SNPN for trusted non-3GPP access to the 5GC network.
  19. 38 . The apparatus of claim 35 , wherein the processor circuitry is further configured to cause the UE to: select, based on SNPN selection parameters included in the PLMN subscription, the corresponding SNPN for trusted non-3GPP access to the 5GC network.
  20. 39 . The apparatus of claim 32 , wherein the processor circuitry is further configured to cause the UE to: construct, based on an SNPN identifier of the selected SNPN, a NAI for trusted access to the selected SNPN.

Description

CROSS REFERENCES TO RELATED APPLICATIONS This application is based on and claims priority to U.S. patent application No. 63/421,072 filed on Oct. 31, 2022, which is incorporated herein by reference in its entirety. TECHNICAL FIELD Embodiments of the disclosure generally relate to wireless communications, and in particular to an apparatus for trusted non-3GPP access network selection. Background Art Mobile communication has evolved significantly from early voice systems to today's highly sophisticated integrated communication platform. The 5G or New Radio (NR) wireless communication system will provide access to information and sharing of data anywhere, anytime by various users and applications. BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the disclosure will be illustrated, by way of example and not limitation, in the accompanying drawings in which like reference numerals refer to similar elements. FIG. 1 illustrates a diagram of an example scenario for trusted non-3GPP access network selection in accordance with some embodiments of the disclosure. FIG. 2 illustrates a flow diagram of a method for trusted non-3GPP access selection in accordance with some embodiments of the disclosure. FIG. 3 illustrates a diagram of an example format of an SNPN list with trusted 5G connectivity information element in accordance with some embodiments of the disclosure. FIG. 4 illustrates a diagram of an example format of an SNPN information list field in accordance with some embodiments of the disclosure. FIG. 5A illustrates a diagram of an example format of an SNPN information entry field in accordance with some embodiments of the disclosure. FIG. 5B illustrates a diagram of an example format of an SNPN identity or identifier field in accordance with some embodiments of the disclosure. FIG. 5C illustrates a diagram of an example format of an SNPN access information field in accordance with some embodiments of the disclosure. FIG. 5D illustrates a diagram of an example format of the supported GINs field in accordance with some embodiments of the disclosure. FIG. 6A illustrates a diagram of an example format of a GIN list field in accordance with some embodiments of the disclosure. FIG. 6B illustrates a diagram of an example format of a GIN information entry field in accordance with some embodiments of the disclosure. FIG. 6C illustrates a diagram of an example format of a NID list in accordance with some embodiments of the disclosure. FIG. 6D illustrates a diagram of an example format of the NID identity in accordance with some embodiments of the disclosure. FIG. 7 illustrates a diagram of a network in accordance with various embodiments of the disclosure. FIG. 8 illustrates a diagram of a wireless network in accordance with various embodiments of the disclosure. FIG. 9 illustrates a block diagram of components, in accordance with various embodiments of the disclosure, able to read instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) and perform any one or more of the methodologies discussed herein. DETAILED DESCRIPTION OF EMBODIMENTS Various aspects of the illustrative embodiments will be described using terms commonly employed by those skilled in the art to convey the substance of the disclosure to others skilled in the art. However, it will be apparent to those skilled in the art that many alternate embodiments may be practiced using portions of the described aspects. For purposes of explanation, specific numbers, materials, and configurations are set forth in order to provide a thorough understanding of the illustrative embodiments. However, it will be apparent to those skilled in the art that alternate embodiments may be practiced without the specific details. In other instances, well known features may have been omitted or simplified in order to avoid obscuring the illustrative embodiments. Further, various operations will be described as multiple discrete operations, in turn, in a manner that is most helpful in understanding the illustrative embodiments; however, the order of description should not be construed as to imply that these operations are necessarily order dependent. In particular, these operations need not be performed in the order of presentation. The phrases “in an embodiment” “in one embodiment” and “in some embodiments” are used repeatedly herein. The phrase generally does not refer to the same embodiment; however, it may. The terms “comprising,” “having,” and “including” are synonymous, unless the context dictates otherwise. The phrases “A or B” and “A/B” mean “(A), (B), or (A and B).” Currently, enhancements are made to the 5G wireless communication system to enable trusted and untrusted non-3GPP access in a Stand-alone Non-Public Network (SNPN). However, only untrusted non-3GPP access is supported in Public Land Mobile Networks (PLMNs). In view of the above, a method for trusted non-3GPP access network selection is proposed to s