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CN-122028039-A - SNPN registration and acquisition of SNPN services from PLMN

CN122028039ACN 122028039 ACN122028039 ACN 122028039ACN-122028039-A

Abstract

A User Equipment (UE) operating in a "registration mode" may search for a network broadcasting registration capability information (OCI) and then use the registration credentials to register and receive SNPN credentials from the network. The UE may then exit the registration mode, enter a manual network selection or an automatic network selection mode, and connect to SNPN. The UE may also receive a list of equivalent PLMNs and SNPN from the network and then indicate to the network at registration that the requested slice is not associated with the HPLMN of the UE, but is associated with SNPN. The network may indicate to the UE how the slice of the network maps to the slice of SNPN, and may indicate whether the slice provided by the network maps only partially to the slice of the SNPN or HPLMN.

Inventors

  • M. Stasnick
  • LI HONGKUN
  • Q.LI
  • C nurse Latin
  • J. Ningle Library
  • Pascal edjekap

Assignees

  • 交互数字专利控股公司

Dates

Publication Date
20260512
Application Date
20210323
Priority Date
20200326

Claims (20)

  1. 1. A method implemented in a wireless transmit/receive unit (WTRU), the method comprising: Receiving first broadcast information from a network, the first broadcast information including a registration support indicator; Transmitting a first request to the network, the first request indicating that system information is to be broadcast on demand, the system information being associated with a group identifier; receiving second broadcast information from the network, the second broadcast information including the group identifier; determining to perform a registration operation with the network using the second broadcast information; transmitting to the network (i) a non-access stratum (NAS) registration request portion including a first registration indication and (ii) a Radio Resource Control (RRC) message including a second registration indication; Receiving SNPN credentials for a separate non-public network (SNPN) from the network after receiving the registration response, and Registering with the SNPN based on the SNPN credentials.
  2. 2. The method of claim 1, further comprising communicating with an access and mobility management function (AMF), the AMF selected by the network based on the second registration indication.
  3. 3. The method of claim 1 wherein at least one of the NAS registration request portion and RRC message includes information to assist the network in determining network functions that can be used to authenticate the WTRU based on its registration credentials.
  4. 4. The method of claim 1 wherein at least one of the NAS registration request portion and RRC message includes an indication that the WTRU desires to authenticate the network.
  5. 5. The method of claim 1, wherein any of the first broadcast information and the second broadcast information includes an indication of whether the network supports a control plane registration procedure, a user plane registration procedure, or both the control plane registration procedure and the user plane registration procedure.
  6. 6. The method of claim 1, wherein any of the first broadcast information and the second broadcast information includes an indication of a type of network slice supported by the network.
  7. 7. The method of claim 1, wherein the SNPN credentials comprise a subscription permanent identifier (SUPI) and SNPN identity.
  8. 8. The method of claim 7 wherein the SNPN credentials further include information required by the WTRU to establish a tunnel between the WTRU and a non-3 GPP interworking function (N3 IWF) of the SNPN.
  9. 9. The method of claim 1, further comprising switching to a manual network selection mode or an automatic network selection mode.
  10. 10. The method of claim 1, wherein the SNPN credentials are received during a registration procedure.
  11. 11. A network apparatus at a Radio Access Network (RAN) node, comprising circuitry comprising a transmitter, a receiver, a processor, and a memory, the network apparatus configured to: Transmitting first broadcast information, the first broadcast information including a registration support indicator; Receiving a first request, the first request indicating an on-demand broadcast of system information, the system information associated with a group identifier; transmitting second broadcast information, the second broadcast information including the group identifier; Receiving, from a wireless transmit/receive unit (WTRU), (i) a non-access stratum (NAS) registration request including a first registration indication and (ii) a Radio Resource Control (RRC) message including a second registration indication; Selecting an access and mobility management function (AMF) for communicating with the WTRU based on the second registration indication; Sending the NAS registration request to the AMF; receiving a registration response from the AMF, and The registration response is sent to the WTRU.
  12. 12. A method performed by a wireless transmit/receive unit (WTRU), the method comprising: Receiving one or more user equipment routing policy (URSP) rules from a network for routing application layer communications generated by the WTRU; generating one or more application layer communications for transmission to the network; determining a route for each of the generated application layer communications based on the one or more URSP rules, and Each of the generated application layer communications is transmitted to a destination based on the one or more URSP rules, Wherein the one or more URSP rules include rules for directing all application-layer communications to an authentication, authorization, and accounting (AAA) server.
  13. 13. The method of claim 12, wherein the one or more URSP rules include rules for directing application-layer communications associated with an authentication request to an AAA server and all other application-layer communications to an empty destination where the application-layer communications are not to be processed.
  14. 14. The method of claim 12, further comprising receiving the one or more URSP rules in a registration response during a registration procedure.
  15. 15. The method of claim 12, further comprising transmitting a domain identifier in a registration request, wherein the WTRU transmits the application layer communication associated with the domain identifier to a combination comprising single network slice selection assistance information (S-NSSAI), (ii) a Data Network Name (DNN), (iii) an Internet Protocol (IP) address, and (iv) a port number, wherein the combination is indicated in the one or more URSP rules.
  16. 16. The method of claim 12, wherein the one or more URSP rules comprise rules for directing application-layer communications for registration procedures.
  17. 17. The method of claim 12, further comprising establishing a Protocol Data Unit (PDU) session prior to transmitting the application layer communication.
  18. 18. The method of claim 17, further comprising transmitting a PDU session establishment request to the network, the PDU session establishment request triggering a secondary authentication by a data network-AAA (DN-AAA) server.
  19. 19. The method of claim 12, further comprising initiating an application layer program to download independent non-public network (SNPN) credentials from an AAA server in response to transmitting an application layer communication to the AAA server.
  20. 20. The method of claim 12, wherein the one or more URSP rules are received from an access and mobility management function (AMF) in the network.

Description

SNPN registration and acquisition of SNPN services from PLMN The present application is a divisional application of patent application No. 202180029417.9, application day 2021, 3/23, and entitled "SNPN registration and obtaining SNPN services from PLMN". Cross Reference to Related Applications The present application claims the benefit of U.S. provisional patent application Ser. No. 62/994,916, filed on even 26/3/2020, and U.S. provisional patent application Ser. No. 63/057,920, filed on even 29/7/2020, the contents of which are hereby incorporated by reference. Background The present disclosure relates to management of devices in wireless networks such as, for example, devices and networks as described in 3GPP TS 23.501, a system architecture for 5G systems (5 GS), 3GPP TS 23.502, procedures for 5G systems (5 GS), 3GPP TS 23.003, numbering, addressing and identification, 3GPP TS 24.501, non-access stratum (NAS) protocols for 5G systems (5 GS), stage 3, 3GPP TR 23.700-07, research into enhanced support for non-public networks, and 3GPP TS 24.008, mobile radio interface layer 3 specifications, core network protocols, stage 3. Disclosure of Invention A User Equipment (UE) operating in a "registration mode" may search for a network broadcasting registration capability information (OCI) and then send a registration request to the network with registration credentials. The UE may also send information to the RAN node to assist the RAN node in selecting an AMF that supports registration. The UE then receives SNPN credentials from the network and thereafter exits the registration mode, enters a manual network selection or automatic network selection mode, and connects to SNPN. The UE may also receive a list of equivalent PLMNs and SNPN from the network. When registering with the network, the UE may then indicate to the network that the requested slice is not associated with the HPLMN of the UE, but is associated with SNPN. The network may indicate to the UE how the slices of the network map to the slices of SNPN. The network may indicate whether the slice provided by the network is only partially mapped to slices of SNPN or HPLMN. The network may also indicate to the UE that the network is unable or unwilling to register the UE. The UE determines what network to connect to when multiple networks broadcast an indication that they are able to register the device. The UE and the network may authenticate each other before performing the registration operation. This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. In addition, the claimed subject matter is not limited to addressing any or all of the disadvantages noted in any part of this disclosure. Drawings A more detailed understanding of the description may be had by way of example only, given below in connection with the accompanying drawings. Fig. 1 illustrates an exemplary Network Identifier (NID). Fig. 2 shows an exemplary S-NSSAI information element. Fig. 3 is a block diagram illustrating an example of accessing PLMN services via a separate non-public network. Fig. 4 is a block diagram illustrating an example of accessing independent non-public network services via a PLMN. Fig. 5 is a call flow diagram of an exemplary registration procedure. Fig. 6 shows an exemplary SNPN list information element. FIG. 7 illustrates an exemplary S-NSSAI enhanced to carry SNPN information. FIG. 8 illustrates an exemplary S-NSSAI information element with an SST mask and an SD mask. Fig. 9A illustrates an exemplary communication system in which the methods and apparatus described and claimed herein may be embodied. Fig. 9B is a block diagram of an exemplary apparatus or device configured for wireless communication. Fig. 9C is a system diagram of an exemplary Radio Access Network (RAN) and core network. Fig. 9D is a system diagram of another exemplary RAN and core network. Fig. 9E is a system diagram of another exemplary RAN and core network. Fig. 9F is a block diagram of an exemplary computing system. Fig. 9G is a block diagram of another exemplary communication system. Fig. 10 is a call flow diagram of an exemplary registration procedure in which the registration procedure with a first network fails and thus the UE attempts to register with a second network. Detailed Description Abbreviations (abbreviations) Many of the abbreviations used herein are described in table 1 of the appendix. It should be appreciated that both AAA-S and DN-AAA are types of AAA servers. User Equipment (UE) A UE conventionally refers to a mobile phone, mobile computer, mobile broadband adapter, connected vehicle, connected device, etc. that is connectable to a cellular network. The UE has an MT (mobile terminal) part that provides