Discovery and selection of independent non-public network (SNPN) roaming groups based at least in part

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive an indication of one or more SNPN roaming groups associated with a network subscribed by the UE. The UE may determine that a transmission from the SNPN identifies a roaming group identifier associated with an SNPN roaming group of the one or more SNPN roaming groups. The UE may register with the SNPN based at least in part on determining that the transmission identifies the roaming group identifier. Numerous other aspects are provided.

Description

[0001] This divisional application is a divisional application with the application date of December 8, 2020, application number 202080091428.5, and invention name “Discovery and selection of an independent non-public network (SNPN) roaming group based at least in part on SNPN”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This patent application claims priority to Greek Patent Application No. 20200100006, filed on January 7, 2020, entitled "DISCOVERY AND SELECTION OF ASTANDALONE NON-PUBLIC NETWORK (SNPN) BASED AT LEAST IN PART ON AN SNPN ROAMINGGROUP", and is assigned to the assignee of this Agreement. The disclosure of the prior application is considered a part of and incorporated by reference into this patent application as if fully set forth below in its entirety and for all applicable purposes. Technical Field

[0004] Various aspects of the technology described below generally relate to wireless communications and techniques and devices for discovery and selection of a standalone non-public network (SNPN) roaming group based at least in part on a SNPN. Some of the techniques and devices described herein enable and provide wireless communication devices and systems configured for enhanced network coverage, enhanced scalability, and enhanced roaming capabilities. Background Art

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE) systems. LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0006] A wireless communication network may include multiple base stations (BS) that can support communications for multiple user equipment (UE). User equipment (UE) can communicate with a base station (BS) via a downlink and an uplink. A downlink (or forward link) refers to a communication link from a BS to a UE, and an uplink (or reverse link) refers to a communication link from a UE to a BS. A BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TR), new radio (NR) BS, 5G Node B, etc.

[0007] Multiple access technologies have been adopted in various telecommunication standards. Wireless communication standards provide common protocols to enable different devices (such as user equipment) to communicate at municipal, national, regional and even global levels. New Radio (NR), also known as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). As the demand for mobile broadband access continues to increase, further improvements in LTE and NR technologies are needed. These improvements can be applied to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0008] The following summarizes some aspects of the present disclosure to provide a basic understanding of the technology discussed. This summary is not an extensive overview of all expected features of the present disclosure, and is neither intended to identify key or critical elements of all aspects of the present disclosure, nor to delineate the scope of any or all aspects of the present disclosure. The purpose of the summary is to present some concepts of one or more aspects of the present disclosure in an overview form as a prelude to a more detailed description presented later.

[0009] As the number of access to independent non-public networks (V-SNPNs) and the number of supported home service providers (SPs) continue to grow, the relationship between V-SNPNs and home SPs may cause expansion problems. For example, V-SNPNs may need to maintain and update a growing and / or changing list of supported home SPs, which may consume a large amount of processing and memory resources of various devices and / or components included in the V-SNPN. In addition, as the number of home SPs supported by V-SNPNs increases, the number of home SP identifiers broadcast or sent by V-SNPNs is also increasing, which may cause the information sent in the system information of V-SNPNs to be too much and / or may cause an increase in radio resource consumption. Some aspects described herein provide techniques and devices for discovering and selecting SNPNs based at least in part on SNPN roaming groups. In some aspects, SNPN roaming groups can be introduced to reduce complexity and increase the scalability of the supported home SP list of maintenance SNPNs (e.g., V-SNPNs). In addition, in some aspects, SNPN roaming hubs can be introduced to reduce the processing and memory resource consumption of the devices and / or components included in the V-SNPNs, which otherwise will be consumed when maintaining the supported home SP list.

[0010] In some aspects, a wireless communication method performed by a user equipment (UE) may include: receiving an indication of one or more independent non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determining a transmission identifier from the SNPN and a roaming group identifier associated with an SNPN roaming group in the one or more SNPN roaming groups; and registering with the SNPN based at least in part on determining the transmission identifier roaming group identifier.

[0011] In some aspects, a UE for wireless communication may include: a memory; and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive an indication of one or more independent non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determine a roaming group identifier associated with a transmission identity from the SNPN and an SNPN roaming group in the one or more SNPN roaming groups; and register with the SNPN based at least in part on determining the transmission identity roaming group identifier.

[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When the one or more instructions are executed by one or more processors of a user equipment (UE), the one or more processors may be caused to: receive an indication of one or more independent non-public network (SNPN) roaming groups associated with a network subscribed to by the UE; determine a roaming group identifier associated with a transmission identity from the SNPN and an SNPN roaming group in the one or more SNPN roaming groups; and register with the SNPN based at least in part on determining the transmission identity roaming group identifier.

[0013] In some aspects, an apparatus for wireless communication may include: a component for receiving an indication of one or more independent non-public network (SNPN) roaming groups associated with a network to which a UE subscribes; a component for determining a roaming group identifier associated with a transmission identifier from the SNPN and an SNPN roaming group in the one or more SNPN roaming groups; and a component for registering with the SNPN based at least in part on determining the transmission identifier roaming group identifier.

[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as described herein with reference to the drawings and descriptions.

[0015] The foregoing has been a fairly extensive overview of the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures to achieve the same purpose of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The features of the concepts disclosed herein, both their organization and methods of operation, and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each figure is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description is provided herein, and some aspects of the present disclosure are shown in the accompanying drawings. However, the accompanying drawings only illustrate some aspects of the present disclosure and therefore should not be considered to limit the scope of the present disclosure. The same reference numerals in different drawings may identify the same or similar elements.

[0017] Figure 1 is a diagram illustrating an example of a wireless communication network according to various aspects of the present disclosure.

[0018] Figure 2 is a diagram illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network according to various aspects of the present disclosure.

[0019] Figure 3 is a diagram illustrating an example of a separate non-public network (SNPN) according to various aspects of the present disclosure.

[0020] Figure 4A-4C is a diagram illustrating an example of SNPN access according to various aspects of the present disclosure.

[0021] Figure 5A and Figure 5B is a diagram illustrating one or more examples of discovery and selection of a SNPN based at least in part on a SNPN roaming group according to various aspects of the present disclosure.

[0022] Figure 6 is a diagram illustrating an example process performed, for example, by a UE according to various aspects of the present disclosure.

[0023] Figure 7 is a diagram of an example apparatus for wireless communications in accordance with various aspects of the present disclosure. DETAILED DESCRIPTION

[0024] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method, which is practiced using other structures, functions, or structures and functions in addition to or in addition to the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0025] Several aspects of telecommunication systems will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements" or "features"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0026] Although some aspects may be described herein using terminology generally associated with 3G and / or 4G wireless technologies, various aspects of the disclosure may be applied to other generation-based communication systems, such as 5G and higher, including NR technologies.

[0027] Although various aspects and embodiments are described in this application by illustrating some examples, it will be understood by those skilled in the art that additional implementations and use cases may occur in many different arrangements and scenarios. The innovations described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, embodiments and / or uses may be available via integrated chip embodiments and / or other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / procurement devices, medical devices, devices supporting artificial intelligence, etc.). Although some examples may or may not be specifically targeted at use cases or applications, various applicability of the described innovations may occur. The scope of implementation can range from chip-level or modular components to non-modular, non-chip-level implementations, to aggregated, distributed, or OEM devices or systems that incorporate one or more aspects of the described innovations. In some practical settings, the devices incorporating the described aspects and features may also have to include additional components and features for implementing and practicing the claimed and described embodiments. For example, the transmission and reception of wireless signals must include multiple components for analog and digital purposes (e.g., hardware components including one or more antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). It is intended that the innovations described herein can be practiced in devices of various sizes, shapes, and configurations, chip-level components, systems, distributed arrangements, end-user devices, etc.

[0028] Figure 1 1 is a diagram illustrating a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include a plurality of BSs 110 (shown as BSs 110a, BSs 110b, BSs 110c, and BSs 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE), and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a particular area (e.g., a fixed or variable geographic area). In some scenarios, the BS 110 may be fixed or non-fixed. In some non-stationary scenarios, the mobile BS 110 may move at varying speeds, directions, and / or altitudes. In 3GPP, the term "cell" can refer to a coverage area of ​​a BS 110 and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0029] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs with service subscriptions. Additionally or alternatively, the BS may support access to unlicensed RF bands (e.g., Wi-Fi bands, etc.). A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS 110a may be a macro BS of macro cell 102a, BS 110b may be a pico BS of pico cell 102b, and BS 110c may be a femto BS of femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0030] In some aspects, the cell may not necessarily be stationary, and the geographic area of ​​the cell may move according to the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as direct physical connections, virtual networks, etc. using any suitable transport network. In other scenarios, the BSs may be implemented in a software defined network (SDN) manner or via a network function virtualization (NFV) manner.

[0031] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and deliver the data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, a relay BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.

[0032] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0033] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0034] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be fixed or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a robot, a drone, an implantable device, an augmented reality device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0035] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which may communicate with a base station, another device (e.g., a remote device), or other entities. For example, a wireless node may provide connectivity to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120, such as a processor component, a memory component, etc. These components may be integrated in a variety of combinations and / or may be independent distributed components, taking into account design constraints and / or operational preferences.

[0036] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0037] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more bypass channels. For example, UE 120 may use peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh network, etc. In such cases, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110. The UE performing the scheduling operations may include or perform base station-like functionality in these deployment scenarios.

[0038] As mentioned above, Figure 1 Provided as an example only. Other examples may be found in Figure 1 Different than described.

[0039] Figure 2 is a diagram of a design 200 of base station 110 and UE 120, which may be Figure 1 1 and 1 in the base station and the UE. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where generally T ≥ 1 and R ≥ 1. The T and R antennas may be configured as multiple antenna elements formed in an array for MIMO or massive MIMO deployments, which may occur in millimeter wave (mmWave or mmW) communication systems.

[0040] At the base station 110, the transmit processor 220 can perform a number of functions related to communication. For example, the transmit processor 220 can receive data from the data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.) and provide overhead symbols and control symbols. The transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 can process a corresponding output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM), etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, it is possible to generate a synchronization signal using position coding to convey additional information.

[0041] At the UE 120, antennas 252a to 252r may receive downlink RF signals. The downlink RF signals may be received from and / or sent by one or more base stations 110. The signals may be provided to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 260, and provide decoded control information and system information to the controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indication (RSSI), reference signal received quality (RSRQ), channel quality indication (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0042] For uplink communications, the UE 120 may transmit control information and / or data to another device, such as one or more base stations 110. For example, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. Symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, and further processed by the receive processor 238 to obtain decoded data and control information delivered by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0043] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the UE 120 may perform one or more techniques associated with discovery and selection of a stand-alone non-public network (SNPN) roaming group based at least in part on the SNPN roaming group, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the can perform or direct e.g. Figure 6 The operations of process 600 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. Scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0044] In some aspects, the UE 120 may include various components or elements for implementing communication functions. For example, the various components may include a component for receiving an indication of one or more SNPN roaming groups associated with a network to which the UE subscribes, a component for determining a roaming group identifier associated with a transmission identity from the SNPN and an SNPN roaming group in the one or more SNPN roaming groups, a component for registering with the SNPN based at least in part on determining the transmission identity roaming group identifier, etc.

[0045] In some aspects, the UE 120 may include various structural components for performing the functions of the various components. For example, the structural components for performing the functions of such components may include a combination of Figure 2 One or more components of UE 120 are depicted, such as antenna 252, DEMOD 254, MOD 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, and the like.

[0046] In some aspects, the base station 110 may include various structural components for performing the functions of the various components. For example, the structural components for performing the functions of such components may include a combination of Figure 2 One or more components of the base station 110 are depicted, such as a transmit processor 220, a TX MIMO processor 230, a DEMOD 232, a MOD 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, and the like.

[0047] As mentioned above, Figure 2 Provided as an example only. Other examples may be found in Figure 2 Different than described.

[0048] Figure 3is a diagram illustrating an example 300 of an SNPN according to various aspects of the present disclosure. An SNPN is a dedicated private wireless network (e.g., a 5G network or other type of wireless network) that can be associated with an enterprise, facility, or other entity or site. For example, an SNPN can be associated with a specific corporate campus, a specific factory, a specific industrial facility, etc.

[0049] like Figure 3 As shown, SNPN (for example, in Figure 3 The SNPN (referred to as SNPN X) may be implemented in and by a wireless network, which may be referred to as a home service provider (home SP) wireless network for a UE (e.g., UE 120). In this case, the core network and the radio access network (RAN) of the home SP may be configured to provide the SNPN to the UE and / or other UEs that are allowed to access the SNPN.

[0050] The core network may include one or more network controllers 130, which provide various core network functions, such as network slice selection function (NSSF), network exposure function (NEF), authentication server function (AUSF), unified data management (UDM) function, policy control function (PCF), application function (AF), access and mobility management function (AMF), session management function (SMF), user plane function (UPF), interworking function (IWF), etc. The RAN may include one or more network controllers 130 and / or one or more BSs 110 that provide wireless coverage to UEs accessing the Home SP.

[0051] In some cases, access to the SNPN may be limited to UEs that have a subscription to the SNPN. In this case, subscription information associated with the SNPN may be provided to the UE and / or otherwise configured so that the UE can register with the SNPN using the subscription information. Figure 3 As shown, the subscription information may include a public land mobile network (PLMN) identifier associated with the home SP and an SNPN identifier associated with the SNPN (e.g., may be referred to as a network identifier (NID)). In some cases, the SNPN (e.g., one or more BSs 110 in the SNPN) may configure the UE with the subscription information as part of a subscriber identity module (SIM) over-the-air (OTA) update procedure, a UE parameter update (UPU) procedure via a UDM control plane procedure, a roaming guidance (SoR) procedure, and / or other types of provisioning procedures. The UE may receive the subscription information and may store the subscription information in a SIM component, a universal integrated circuit card (UICC) component, and / or another component configured to store the subscription information. In some cases, the UE may be deployed with a SIM component or a UICC component that has been configured with the subscription information.

[0052] In order to access the SNPN, the UE may scan or monitor for transmissions identifying the PLMN identifier and the NID of the SNPN. For example, the SNPN (e.g., one or more BS110 in the SNPN) may broadcast and / or otherwise send the PLMN identifier and the NID of the SNPN to UEs that can discover the SNPN. The UE may determine whether the PLMN identifier and the NID identified in the broadcast or transmission from the SNPN match the PLMN identifier and the NID in the subscription information stored by the UE. If the PLMN identifier and the NID match, the UE may attempt to register with the SNPN. Once the UE registers with the SNPN, the SNPN may grant the UE access to various non-public network services hosted by the SNPN.

[0053] As mentioned above, providing Figure 3 As an example. Other examples can be related to Figure 3 Different than described.

[0054] Figure 4A-4C 4 is a diagram illustrating examples 400, 410, and 420 of SNPN access according to various aspects of the present disclosure. In particular, Figure 4A-4C Communications between a subscribed wireless network (e.g., a home SP) and components of the SNPN (e.g., implementing various network functions) are shown in connection with a registration process of a UE (e.g., UE 120). Thus, as part of the registration process of the UE, the SNPN (e.g., one or more devices and / or components implementing the SNPN) can establish a connection to the subscribed wireless network (e.g., one or more devices and / or components implementing the subscribed wireless network). For example, based at least in part on an identifier provided by the UE as part of the registration process (e.g., a subscription permanent identifier (SUPI), a subscription hidden identifier (SUCI), etc.), a device implementing one or more components of the SNPN can determine the identity of the subscribed wireless network and can therefore determine an address at which the subscribed wireless network can be reached (e.g., using a mapping).

[0055] like Figure 4A As shown, the SNPN can communicate with the subscribed wireless network to perform authentication of the UE and obtain the subscription information of the UE. In particular, the AMF of the SNPN can communicate with the AUSF of the subscribed wireless network to authenticate the UE. For example, the AMF can send the UE's certificate provided with the UE's registration request. In addition, the AMF and SMF of the SNPN can communicate with the UDM function of the subscribed wireless network to obtain the subscription information of the UE. For example, the AMF and / or SMF can send the UE's identifier (e.g., SUPI or SUCI) provided with the UE's registration request. Figure 4A As shown, after registration, the UE can communicate with a data network (eg, a data network providing non-public network services, etc.) via the UPF of the SNPN.

[0056] like Figure 4B As shown, as described above, the SNPN can communicate with the subscribed wireless network to perform authentication of the UE and obtain the subscription information of the UE. In particular, as described above, the AMF of the SNPN can communicate with the AUSF of the subscribed wireless network to authenticate the UE. In addition, as described above, the AMF can communicate with the UDM component of the subscribed wireless network to obtain the subscription information of the UE. Figure 4B As shown, after registration, the UE can communicate with a data network (e.g., the Internet) via the subscribed wireless network. For example, the UPF of the SNPN can forward the UE's session (e.g., a physical data unit (PDU) session) to the UPF of the subscribed wireless network for termination at the data network via the subscribed wireless network.

[0057] like Figure 4C As shown, as described above, the SNPN can communicate with the subscribed wireless network to perform authentication of the UE and obtain the subscription information of the UE. In particular, as described above, the AMF of the SNPN can communicate with the AUSF of the subscribed wireless network to authenticate the UE. In addition, as described above, the AMF and SMF of the SNPN can communicate with the UDM component of the subscribed wireless network to obtain the subscription information of the UE. Figure 4C As shown, after registration, the UE can communicate with the data network (e.g., the Internet) via the UPF of the SNPN. Figure 4C As further shown in , the UE can establish a tunnel to the interworking function (IWF) of the subscribed wireless network via the data network, thereby enabling the UE to access the data network (e.g., for file retrieval) via the UPF of the subscribed wireless network.

[0058] As mentioned above, providing Figure 4A-4C As an example. Other examples may differ from the Figure 4A-4C Examples described.

[0059] In some cases, a UE (e.g., UE 120) may be able to use a subscription to another wireless network to access a SNPN implemented by a wireless network and / or hosted in a wireless network. This may be referred to as SNPN roaming. In this case, the SNPN may be referred to as a visited SNPN (V-SNPN). The V-SNPN may broadcast and / or otherwise send an identifier (e.g., a PLMN identifier and / or other type of identifier) ​​of a wireless network (e.g., a home SP) that the V-SNPN supports (e.g., with which the V-SNPN has a roaming agreement). The UE may receive a broadcast or transmission from the V-SNPN (e.g., in a system information block (SIB) or other type of system information transmission), and may determine whether the UE has a subscription to any PLMN identifier identified in the broadcast or transmission. If the UE determines that the UE has subscribed to a PLMN identifier, the UE may register with the V-SNPN.

[0060] As the number of V-SNPNs and the number of supported Home SPs continue to grow, the relationship between the V-SNPNs and the Home SPs may cause scaling issues. For example, the V-SNPN may need to maintain and update a growing and / or changing list of supported Home SPs, which may consume a large amount of processing and memory resources of the various devices and / or components included in the V-SNPN. In addition, as the number of Home SPs supported by the V-SNPN increases, the number of Home SP identifiers broadcast or sent by the V-SNPN also increases, which may result in excessive information in the SIB of the V-SNPN and / or may result in increased radio resource consumption.

[0061] Some aspects described herein provide techniques and devices for discovering and selecting SNPNs based at least in part on SNPN roaming groups. In some aspects, SNPN roaming groups can be introduced to reduce complexity and increase the scalability of the supported home SP list for maintaining SNPNs (e.g., V-SNPNs). SNPN roaming groups can be identified by roaming group identifiers (RGIDs), which may also be referred to as group identifiers (GIDs) or home SP group identifiers (Home SP Group IDs). SNPNs can be configured to include multiple networks (e.g., home SPs). In this way, SNPNs can broadcast or send RGIDs to indicate multiple networks, which consumes less radio resources than explicitly broadcasting or sending a separate identifier for each of multiple networks.

[0062] In addition, in some aspects, a SNPN roaming hub (e.g., implemented by the network controller 130) may be introduced to reduce the processing and memory resource consumption of devices and / or components included in the V-SNPN that would otherwise be consumed to maintain a list of supported home SPs. The SNPN roaming hub may configure an RGID for one or more V-SNPNs, each of which may broadcast or transmit the RGID. In addition, the SNPN roaming hub may reduce the burden of keeping the supported home SP list up to date by updating the RGID when a home SP is added and / or deleted in a SNPN roaming group associated with the RGID.

[0063] Figure 5A and Figure 5B is a diagram illustrating an example 500 of discovery and selection of a SNPN based at least in part on a SNPN roaming group in accordance with various aspects of the present disclosure. Figure 5A and Figure 5B As shown, example 500 may include one or more SNPNs (e.g., V-SNPNs), one or more home SPs (e.g., wireless network 100), a SNPN roaming hub (e.g., network controller 130), and / or UEs (e.g., UE 120).

[0064] like Figure 5A As shown, the SNPN roaming hub can act as a communication intermediary between the SNPN and the home SP. The SNPN roaming hub can be responsible for generating, configuring, and updating the SNPN roaming group and the associated RGID for the SNPN and the home SP, can be responsible for providing the SNPN and the home SP with an indication of the SNPN roaming group and the associated RGID, can be responsible for providing the SNPN and the home SP with updated SNPN roaming groups and the associated RGID, etc. In some aspects, the SNPN roaming hub can be omitted from example 500, in which case the SNPN and the home SP can jointly generate, configure, and update the SNPN roaming group and the associated RGID.

[0065] In some aspects, the SNPN roaming hub can generate and / or configure the SNPN roaming group to include multiple home SPs. In some aspects, the SNPN roaming group can be subscription-based or roaming agreement-based. For example, the SNPN roaming hub can generate and / or configure the SNPN roaming group for the SNPN, where the SNPN has a roaming agreement with the home SP included in the SNPN roaming group. In this case, a UE subscribed to the SNPN and any home SP can access the SNPN (e.g., by using a roaming agreement) from the home SP subscribed by the UE and via different home SPs providing the SNPN.

[0066] like Figure 5BAs shown, the UE can discover the SNPN (e.g., V-SNPN) and register with it based at least in part on the SNPN roaming group associated with the SNPN. As shown in reference numeral 502, the home SP (e.g., BS110 in the home SP of the UE) to which the UE subscribes can send an indication of one or more SNPN roaming groups to the UE. The home SP of the UE can be associated with and / or included in each SNPN roaming group. Each SNPN roaming group can include one or more other home SPs (e.g., other wireless networks 100). In this case, the home SP of the UE and other home SPs associated with the SNPN roaming group can have a roaming agreement that allows the UE to access the supported SNPN via roaming on the home SP that the UE does not subscribe to. Via a roaming agreement between the home SP of the UE and another home SP included in the SNPN roaming group, the UE can be allowed to access the SNPN of the RGID associated with the SNPN roaming group.

[0067] In some aspects, one or more SNPN roaming groups may be generated or configured by a SNPN roaming hub (if included), which may send an indication of the one or more SNPN roaming groups to the home SP. In addition, the SNPN roaming hub may send an indication of the SNPN roaming groups supported by the SNPN to each SNPN, so that the SNPN may broadcast the RGID of the SNPN roaming group together with the SNPN identifier (e.g., NID) of the SNPN. In this way, the UE may discover the SNPN and register with the SNPN.

[0068] In some aspects, the Home SP may send an indication of one or more SNPN roaming groups to the UE in system information (e.g., SIB, Master Information Block (MIB), Remaining Minimum System Information (RMSI), Other System Information (OSI)), in downlink signaling (e.g., in Radio Resource Control (RRC) communications, in Media Access Control Unit (MAC-CE) communications, in Downlink Control Information (DCI) communications, etc.).

[0069] In some aspects, the UE may receive an indication of one or more SNPN roaming groups as part of a SIM OTA update procedure, as part of a UE configuration update procedure, etc. The UE may store information identifying the one or more SNPN roaming groups in a SIM component or a UICC component of the UE (e.g., together with the UE's subscription information). In addition to and / or in lieu of receiving an indication of one or more SNPN roaming groups, a SIM or UICC configuration that already includes information identifying the one or more SNPN roaming groups may be provided and / or deployed to the UE. In this case, an update to the SNPN roaming groups may be provided to the UE via a SIM OTA update procedure or a UE configuration update procedure.

[0070] In some aspects, the indication of one or more SNPN roaming groups may identify a corresponding RGID associated with each of the one or more SNPN roaming groups. In some aspects, the indication of one or more SNPN roaming groups may further identify a ranked list of one or more SNPN roaming groups. In this case, if the UE is able to access multiple SNPNs via different SNPN roaming groups (e.g., via different SNPN roaming groups, each roaming group including a home SP to which the UE subscribes), the UE may select and access the SNPN associated with the highest-ranked SNPN roaming group or access the SNPN via other rules and / or parameters based at least in part on the ranked list of one or more SNPN roaming groups. The SNPN roaming groups may be ranked or sorted in a ranked list (which may be referred to as a priority list controlled by a separate entity) based at least in part on priority (e.g., from highest priority to lowest priority).

[0071] like Figure 5B As further shown in the figure, and by reference numeral 504, to register with the SNPN, the UE may receive a transmission (e.g., broadcast, multicast, groupcast, unicast, etc.) from the SNPN (e.g., from the BS 110 included in the SNPN), and may determine whether the transmission identifies an RGID associated with an SNPN roaming group in one or more SNPN roaming groups. As shown by reference numeral 506, if the UE determines that the transmission from the SNPN identifies an RGID associated with an SNPN roaming group in one or more SNPN roaming groups, the UE may register with the SNPN.

[0072] In some aspects, if the UE receives transmissions from multiple SNPNs, and each transmission identifies a corresponding RGID associated with an SNPN roaming group in one or more SNPN roaming groups, the UE may select an SNPN to register with based at least in part on a ranked list of the one or more SNPN roaming groups. For example, the UE may identify the highest-ranked SNPN roaming group identified in the transmissions from the multiple SNPNs in the ranked list, and may register with the SNPN that sent the RGID associated with the highest-ranked SNPN roaming group.

[0073] In some aspects, the UE may use the above combination Figure 4A-4C One or more of the described techniques register with the SNPN. After registering with the SNPN, the UE may be allowed access to communicate with various data networks provided via the SNPN, such as data networks providing non-public network services, etc.

[0074] In this way, the SNPN roaming group can be used to reduce the complexity of maintaining the supported home SP list of the SNPN (e.g., V-SNPN) and increase scalability. The SNPN can broadcast or send an RGID to indicate multiple networks, which consumes less radio resources than explicitly broadcasting or sending a separate identifier of each of the multiple networks. In addition, in this way, the SNPN roaming hub can reduce the processing and memory resource consumption of the devices and / or components included in the V-SNPN, which would otherwise be consumed to maintain the list of supported home SPs. The SNPN roaming hub can configure an RGID for one or more V-SNPNs, and each V-SNPN can broadcast or send an RGID. In addition, the SNPN roaming hub can reduce the burden of keeping the supported home SP list up to date by updating the RGID when adding and / or deleting a home SP in the SNPN roaming group associated with the RGID.

[0075] As mentioned above, Figure 5A and Figure 5B Provided as one or more examples. Other examples may differ from the Figure 5A and Figure 5B Examples described.

[0076] Figure 6 600 is a diagram illustrating an example process 600 performed, for example, by a UE according to various aspects of the present disclosure. Example process 600 is a UE (for example, in conjunction with Figure 1-Figure 3 , Figure 4A-4C , Figure 5A and Figure 5B An example of a UE 120) shown and / or described in one or more of the above, performing operations associated with discovery and selection of a SNPN based at least in part on a SNPN roaming group.

[0077] like Figure 6 As shown, in some aspects, process 600 may include receiving an indication of one or more SNPN roaming groups associated with a network to which the UE subscribes (block 610). For example, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.) may receive an indication of one or more SNPN roaming groups associated with a network to which the UE subscribes, as described above.

[0078] like Figure 6As further shown, in some aspects, process 600 may include determining that the transmission identification from the SNPN is associated with a roaming group identifier of an SNPN roaming group in one or more SNPN roaming groups (block 620). For example, the UE (e.g., using the receive processor 258, the transmit processor 264, the controller / processor 280, the memory 282, etc.) may determine that the transmission identification from the SNPN is associated with a roaming group identifier of an SNPN roaming group in one or more SNPN roaming groups, as described above.

[0079] like Figure 6 As shown, in some aspects, process 600 may include registering with the SNPN based at least in part on determining the transmission identification roaming group identifier (block 630). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may register with the SNPN based at least in part on determining the transmission identification roaming group identifier, as described above.

[0080] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in connection with one or more other processes described elsewhere herein.

[0081] In a first aspect, the indication of one or more SNPN roaming groups identifies a respective roaming group identifier associated with each of the one or more SNPN roaming groups. In a second aspect, alone or in combination with the first aspect, receiving the indication of one or more SNPN roaming groups comprises receiving the indication of the one or more SNPN roaming groups as part of a UE configuration update procedure for the UE.

[0082] In a third aspect, alone or in combination with one or more of the first and second aspects, receiving an indication of one or more SNPN roaming groups includes receiving an indication of one or more SNPN roaming groups as part of an over-the-air update procedure of a subscriber identity module of the UE. In a fourth aspect, alone or in combination with one or more of the first to third aspects, each of the one or more SNPN roaming groups is associated with one or more other networks.

[0083] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the indication of one or more SNPN roaming groups includes a ranked list of one or more SNPN roaming groups, and determining at least in part that a transmission identifies a roaming group identifier to register with the SNPN includes registering with the SNPN based at least in part on the ranked list of one or more SNPN roaming groups. In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the one or more SNPN roaming groups are configured by a SNPN roaming hub. In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the transmission from the SNPN is a SIB broadcast.

[0084] although Figure 6 Example blocks of process 600 are shown, but in some aspects, process 600 may include Figure 6 The blocks depicted in the process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 600. Additionally or alternatively, two or more blocks of the process 600 may be performed in parallel.

[0085] Figure 7 700 is a diagram of an example apparatus 700 for wireless communication according to various aspects of the present disclosure. Apparatus 700 may be a UE, or a UE may include apparatus 700. In some aspects, apparatus 700 includes a receiving component 702 and a sending component 704, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 700 may communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device) using receiving component 702 and sending component 704. As further shown, apparatus 700 may include one or more determining components 708 and / or registering components 710, among other examples.

[0086] In some aspects, the apparatus 700 may be configured to perform Figure 3 , Figure 4A-4C , Figure 5A and / or Figure 5B Additionally or alternatively, the apparatus 700 may be configured to perform one or more processes described herein, such as Figure 6 The process 600. In some aspects, Figure 7 The apparatus 700 and / or one or more components shown in the figure may include the above combined Figure 2 One or more components of the UE described. Additionally or alternatively, Figure 7 One or more of the components shown in the above may be combined Figure 2In one or more components described herein, the components may be implemented in a computer program product. Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0087] The receiving component 702 may receive communications from the device 706, such as reference signals, control information, data communications, or combinations thereof. The receiving component 702 may provide the received communications to one or more other components of the device 700. In some aspects, the receiving component 702 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the device 706. In some aspects, the receiving component 702 may include the above in combination with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a UE are described.

[0088] The transmitting component 704 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 706. In some aspects, one or more other components of the device 706 may generate communications and may provide the generated communications to the transmitting component 704 for transmission to the device 706. In some aspects, the transmitting component 704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 706. In some aspects, the transmitting component 704 may include the above in combination with Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmitting component 704 can be collocated with the receiving component 702 in a transceiver.

[0089] The receiving component 702 can receive (e.g., from the device 706) an indication of one or more SNPN roaming groups associated with a network subscribed to by the device 700. The determining component 708 can determine a roaming group identifier associated with a SNPN roaming group in the one or more SNPN roaming groups from a transmission identification from the SNPN. The registering component 710 can register with the SNPN based at least in part on determining the transmission identification roaming group identifier.

[0090] Figure 7 The number and arrangement of components shown in the figure are provided as examples. In practice, Figure 7There may be additional components, fewer components, different components, or components arranged differently than those shown. Figure 7 Two or more components shown in may be implemented in a single component, or Figure 7 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 7 The collection of (one or more) components shown in the figure can perform one or more functions, which are described as being Figure 7 Another component set shown in is executed.

[0091] The following provides an overview of various aspects of the disclosure:

[0092] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: receiving an indication of one or more independent non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determining a roaming group identifier associated with a transmission identifier from the SNPN and an SNPN roaming group in one or more SNPN roaming groups; and registering with the SNPN based at least in part on determining the transmission identifier roaming group identifier.

[0093] Aspect 2: The method according to aspect 1, wherein the indication of one or more SNPN roaming groups identifies a corresponding roaming group identifier associated with each of the one or more SNPN roaming groups.

[0094] Aspect 3: The method according to aspect 1 or 2, wherein receiving an indication of one or more SNPN roaming groups includes: receiving an indication of one or more SNPN roaming groups as part of a UE configuration update procedure for the UE.

[0095] Aspect 4: A method according to any one of Aspects 1-3, wherein receiving an indication of one or more SNPN roaming groups comprises: receiving an indication of one or more SNPN roaming groups as part of an over-the-air update process of a subscriber identity module of the UE. Aspect 5: A method according to any one of Aspects 1-4, wherein each of the one or more SNPN roaming groups is associated with one or more other networks. Aspect 6: A method according to any one of Aspects 1-5, wherein the indication of one or more SNPN roaming groups comprises: a ranked list of one or more SNPN roaming groups.

[0096] Aspect 7: A method according to aspect 6, wherein registering with the SNPN based at least in part on determining the transmission identification roaming group identifier includes: registering with the SNPN based at least in part on a ranked list of one or more SNPN roaming groups. Aspect 8: A method according to any one of aspects 1-7, wherein the transmission from the SNPN is a system information block (SIB) broadcast.

[0097] Aspect 9: An apparatus for wireless communication at a device, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more aspects of aspects 1 to 8. Aspect 10: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method of one or more aspects of aspects 1 to 8.

[0098] Aspect 11: An apparatus for wireless communication, comprising at least one component for performing the method of one or more aspects of aspects 1-8. Aspect 12: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more aspects of aspects 1-8. Aspect 13: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of the device, causes the device to perform the method of one or more aspects of aspects 1-8.

[0099] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of these aspects.

[0100] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, or a combination of hardware and software.

[0101] Some aspects are described herein in conjunction with a threshold value. As used herein, satisfying a threshold value may refer to a value greater than a threshold value, greater than or equal to a threshold value, less than a threshold value, less than or equal to a threshold value, equal to a threshold value, not equal to a threshold value, etc.

[0102] Obviously, the systems and / or methods described herein can be implemented in various forms of hardware, firmware, or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code - it should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.

[0103] Although specific combinations of features are recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in ways that are not specifically recorded in the claims and / or disclosed in the specification. Although each dependent claim listed below may be directly dependent on one claim, the disclosure of the various aspects includes the combination of each dependent claim with each other claim in the claim set. The phrase "at least one" referring to a list of items refers to any combination of these items, including single members. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other order of a, b and c).

[0104] Unless explicitly stated, any element, action or instruction used herein should not be interpreted as critical or essential. In addition, as used herein, "one" is intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.), and can be used interchangeably with "one or more". If only one item is intended, the phrase "only one item" or similar language is used. In addition, as used herein, terms such as "having" are intended to be open terms. In addition, unless otherwise explicitly stated, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: receiving an indication of one or more stand-alone non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determining that the transmission identification from the SNPN is associated with a roaming group identifier of an SNPN roaming group in one or more SNPN roaming groups; and Registering with the SNPN is performed based at least in part on determining the transmission identification roaming group identifier.

2. The method according to claim 1, wherein: The indication of the one or more SNPN roaming groups identifies a respective roaming group identifier associated with each of the one or more SNPN roaming groups.

3. The method according to claim 1, wherein: Receiving an indication of one or more SNPN roaming groups includes: An indication of one or more SNPN roaming groups is received as part of a UE configuration update procedure for the UE.

4. The method according to claim 1, wherein: Receiving an indication of one or more SNPN roaming groups includes: An indication of one or more SNPN roaming groups is received as part of a subscriber identity module over-the-air update procedure for the UE.

5. The method according to claim 1, wherein: Each of the one or more SNPN roaming groups is associated with one or more other networks.

6. The method according to claim 1, wherein: The indication of one or more SNPN roaming groups includes: A ranked list of one or more SNPN roaming groups.

7. The method according to claim 6, wherein: Registering with the SNPN based at least in part on determining the transmission identification roaming group identifier includes: Registering with the SNPN is performed based at least in part on a ranked list of one or more SNPN roaming groups.

8. The method according to claim 1, wherein: The transmission from the SNPN is a System Information Block (SIB) broadcast.

9. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors operably coupled to the memory, the memory and the one or more processors configured to: receiving an indication of one or more stand-alone non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determining that the transmission identification from the SNPN is associated with a roaming group identifier of an SNPN roaming group in one or more SNPN roaming groups; and Registering with the SNPN is performed based at least in part on determining the transmission identification roaming group identifier.

10. The UE according to claim 9, wherein: The indication of the one or more SNPN roaming groups identifies a respective roaming group identifier associated with each of the one or more SNPN roaming groups.

11. The UE according to claim 9, wherein: Upon receiving an indication of one or more SNPN roaming groups, the one or more processors are configured to: An indication of one or more SNPN roaming groups is received as part of a UE configuration update procedure for the UE.

12. The UE according to claim 9, wherein: Upon receiving an indication of one or more SNPN roaming groups, the one or more processors are configured to: An indication of one or more SNPN roaming groups is received as part of a subscriber identity module over-the-air update procedure for the UE.

13. The UE according to claim 9, wherein: Each of the one or more SNPN roaming groups is associated with one or more other networks.

14. The UE according to claim 9, wherein: The indication of one or more SNPN roaming groups includes: A ranked list of one or more SNPN roaming groups.

15. The UE according to claim 14, wherein: When registering with the SNPN based at least in part on determining the transmission identification roaming group identifier, the one or more processors are configured to: Registering with the SNPN is performed based at least in part on a ranked list of one or more SNPN roaming groups.

16. The UE according to claim 9, wherein: The transmission from the SNPN is a System Information Block (SIB) broadcast.

17. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: When the one or more instructions are executed by one or more processors of a user equipment (UE), the UE: receiving an indication of one or more stand-alone non-public network (SNPN) roaming groups associated with a network to which the UE subscribes; determining that the transmission identification from the SNPN is associated with a roaming group identifier of an SNPN roaming group in one or more SNPN roaming groups; and Registering with the SNPN is performed based at least in part on determining the transmission identification roaming group identifier.

18. The non-transitory computer readable medium of claim 17, wherein: The indication of the one or more SNPN roaming groups identifies a respective roaming group identifier associated with each of the one or more SNPN roaming groups.

19. The non-transitory computer readable medium of claim 17, wherein: one or more instructions causing the UE to receive an indication of one or more SNPN roaming groups, causing the UE to: An indication of one or more SNPN roaming groups is received as part of a UE configuration update procedure for the UE.

20. The non-transitory computer readable medium of claim 17, wherein: one or more instructions causing the UE to receive an indication of one or more SNPN roaming groups, causing the UE to: An indication of one or more SNPN roaming groups is received as part of a subscriber identity module over-the-air update procedure for the UE.

21. The non-transitory computer readable medium of claim 17, wherein: Each of the one or more SNPN roaming groups is associated with one or more other networks.

22. The non-transitory computer readable medium of claim 17, wherein: The indication of one or more SNPN roaming groups includes: a ranked list of one or more SNPN roaming groups; and The one or more instructions for causing the UE to register with the SNPN based at least in part on determining the transmission identity roaming group identifier cause the UE to: Registering with the SNPN is performed based at least in part on a ranked list of one or more SNPN roaming groups.

23. The non-transitory computer readable medium of claim 17, wherein: The transmission from the SNPN is a System Information Block (SIB) broadcast.

24. An apparatus for wireless communication, comprising: means for receiving an indication of one or more independent non-public network (SNPN) roaming groups associated with a network to which the UE is subscribed; means for determining a transmission identity from the SNPN and a roaming group identifier associated with an SNPN roaming group in one or more SNPN roaming groups; as well as Means for registering with the SNPN based at least in part on determining the transmission identification roaming group identifier.

25. The device according to claim 24, wherein: The indication of the one or more SNPN roaming groups identifies a respective roaming group identifier associated with each of the one or more SNPN roaming groups.

26. The device according to claim 24, wherein: Means for receiving an indication of one or more SNPN roaming groups comprises: Means for receiving an indication of one or more SNPN roaming groups as part of a UE configuration update procedure for a UE.

27. The device according to claim 24, wherein: Means for receiving an indication of one or more SNPN roaming groups comprises: Means for receiving an indication of one or more SNPN roaming groups as part of a subscriber identity module over-the-air update procedure for a UE.

28. The device according to claim 24, wherein: Each of the one or more SNPN roaming groups is associated with one or more other networks.

29. The device according to claim 24, wherein: The indication of one or more SNPN roaming groups includes: a ranked list of one or more SNPN roaming groups; and Wherein, the component for registering with the SNPN based at least in part on determining the transmission identification roaming group identifier includes: Registering with the SNPN is based at least in part on the ranked list of one or more SNPN roaming groups.

30. The device according to claim 24, wherein: The transmission from the SNPN is a System Information Block (SIB) broadcast.

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