WO2023066074A1 - Snpn选择方法、终端、装置及存储介质 - Google Patents

Snpn选择方法、终端、装置及存储介质 Download PDF

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Publication number
WO2023066074A1
WO2023066074A1 PCT/CN2022/124482 CN2022124482W WO2023066074A1 WO 2023066074 A1 WO2023066074 A1 WO 2023066074A1 CN 2022124482 W CN2022124482 W CN 2022124482W WO 2023066074 A1 WO2023066074 A1 WO 2023066074A1
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snpn
terminal
entity
indication information
information
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PCT/CN2022/124482
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English (en)
French (fr)
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周锐
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大唐移动通信设备有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events

Definitions

  • the present disclosure relates to the technical field of wireless communication, and in particular to an SNPN selection method, terminal, device and storage medium.
  • the fifth generation mobile communication introduces a new type of network - non-public network (Non-Public Network, NPN).
  • NPN can be deployed in a variety of ways. It can be deployed independently of the existing 5G public network, that is, an independent non-public network (Stand-alone Non-Public Network, SNPN), or it can be deployed in the existing 5G public network in a shared manner. On the network, that is, a public network integrated non-public network (Public Network Integrated-NPN, PNI-NPN).
  • Group ID group identification
  • the access layer (Access Stratum, AS) of the terminal can be read and the group identification list in it can be sent to the non-access stratum (Non-Access Stratum, NAS) of the terminal, so that the NAS layer of the terminal can use the group identification list to select the SNPN as needed.
  • UE User Equipment
  • NAS Non-Access Stratum
  • the existing SNPN selection The method will lead to a large power consumption of the terminal; moreover, since the system information block of each cell is sent at a fixed time domain position, the terminal needs to wait for the arrival of the time domain position in order to read the system information block, which will also reduce the Efficiency of the SNPN selection process. Therefore, how to propose an SNPN selection method to reduce terminal power consumption and improve the efficiency of the SNPN selection process is an important issue that needs to be solved urgently in the industry.
  • the embodiments of the present disclosure provide an SNPN selection method, a terminal, a device, and a storage medium.
  • an embodiment of the present disclosure provides a method for selecting an independent non-public network SNPN, including:
  • the non-access stratum entity of the terminal sends first indication information to the access stratum entity of the terminal, where the first indication information is used to indicate that the access stratum entity of the terminal does not need to obtain a group identification list;
  • the group identification The list is a set of identifiers of external networks supported by SNPN;
  • the access stratum entity of the terminal searches for an available SNPN according to the first indication information, acquires and sends first SNPN information to the non-access stratum entity of the terminal, and the first SNPN information includes one or more Available SNPN logo;
  • the non-access stratum entity of the terminal selects an SNPN based on the first SNPN information.
  • the non-access stratum entity of the terminal sends the first indication information to the access stratum entity of the terminal, including:
  • the non-access stratum entity of the terminal determines that the group identifier configuration information is not configured locally, then send the first indication information to the access stratum entity of the terminal;
  • the group identifier configuration information is used to instruct the non-access stratum entity of the terminal to select the SNPN based on the group identifier list.
  • the first indication information includes:
  • the first SNPN type Indicates the first SNPN type, and the first SNPN type is a common SNPN.
  • the access layer entity of the terminal searches for an available SNPN according to the first indication information, including:
  • the access layer entity of the terminal searches for the available SNPN, and according to the first indication information, receives the system information block but does not perform the operation of reading the group identification list; or, according to the first indication information, does not receive the information containing the group A system information block that identifies a list.
  • the method also includes:
  • the non-access stratum entity of the terminal determines that group identifier configuration information is configured locally, and sends second indication information to the access stratum entity of the terminal, where the second indication information is used to indicate the access stratum entity of the terminal Get a list of group ids;
  • the access layer entity of the terminal searches for an available SNPN according to the second indication information, acquires and sends second SNPN information to the non-access layer entity of the terminal, and the second SNPN information includes one or more Available SNPN identifiers and a list of group identifiers corresponding to each of the available SNPN identifiers;
  • the non-access stratum entity of the terminal selects an SNPN based on the second SNPN information.
  • the second indication information includes:
  • the second SNPN type is an SNPN type other than the first SNPN type.
  • the second SNPN type is an SNPN type that supports external authentication, or an SNPN type that supports remote configuration.
  • the access layer entity of the terminal searches for an available SNPN according to the second indication information, including:
  • the access layer entity of the terminal searches for an available SNPN, receives a system information block including a group identification list according to the second indication information, and reads the group identification list in the system information block.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:
  • the non-access stratum entity of the terminal sends first indication information to the access stratum entity of the terminal, where the first indication information is used to indicate that the access stratum entity of the terminal does not need to obtain a group identification list;
  • the group identification The list is a set of identifiers of external networks supported by SNPN;
  • the access stratum entity of the terminal searches for an available SNPN according to the first indication information, acquires and sends first SNPN information to the non-access stratum entity of the terminal, and the first SNPN information includes one or more Available SNPN logo;
  • the non-access stratum entity of the terminal selects an SNPN based on the first SNPN information.
  • the non-access stratum entity of the terminal sends the first indication information to the access stratum entity of the terminal, including:
  • the non-access stratum entity of the terminal determines that the group identifier configuration information is not configured locally, then send the first indication information to the access stratum entity of the terminal;
  • the group identifier configuration information is used to instruct the non-access stratum entity of the terminal to select the SNPN based on the group identifier list.
  • the first indication information includes:
  • the first SNPN type Indicates the first SNPN type, and the first SNPN type is a common SNPN.
  • the access layer entity of the terminal searches for an available SNPN according to the first indication information, including:
  • the access layer entity of the terminal searches for the available SNPN, and according to the first indication information, receives the system information block but does not perform the operation of reading the group identification list; or, according to the first indication information, does not receive the information containing the group A system information block that identifies a list.
  • the operations also include:
  • the non-access stratum entity of the terminal determines that group identifier configuration information is configured locally, and sends second indication information to the access stratum entity of the terminal, where the second indication information is used to indicate the access stratum entity of the terminal Get a list of group ids;
  • the access layer entity of the terminal searches for an available SNPN according to the second indication information, acquires and sends second SNPN information to the non-access layer entity of the terminal, and the second SNPN information includes one or more Available SNPN identifiers and a list of group identifiers corresponding to each of the available SNPN identifiers;
  • the non-access stratum entity of the terminal selects an SNPN based on the second SNPN information.
  • the second indication information includes:
  • the second SNPN type is an SNPN type other than the first SNPN type.
  • the second SNPN type is an SNPN type that supports external authentication, or an SNPN type that supports remote configuration.
  • the access layer entity of the terminal searches for an available SNPN according to the second indication information, including:
  • the access layer entity of the terminal searches for an available SNPN, receives a system information block including a group identification list according to the second indication information, and reads the group identification list in the system information block.
  • the embodiment of the present disclosure also provides an independent non-public network SNPN selection device, including:
  • the sending unit is used for the non-access stratum entity of the terminal to send first indication information to the access stratum entity of the terminal, where the first indication information is used to indicate that the access stratum entity of the terminal does not need to acquire a group identification list ;
  • the group identification list is an identification set of external networks supported by the SNPN;
  • the obtaining unit is used for the access layer entity of the terminal to search for an available SNPN according to the first indication information, obtain and send first SNPN information to the non-access layer entity of the terminal, and the first SNPN information includes Contains one or more available SNPN identifiers;
  • the selecting unit is used for the non-access stratum entity of the terminal to select the SNPN based on the first SNPN information.
  • the embodiment of the present disclosure further provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and the computer program is used to enable the computer to perform the SNPN selection described in the first aspect. method steps.
  • the embodiment of the present disclosure further provides a communication device, where a computer program is stored in the communication device, and the computer program is used to make the communication device execute the steps of the method for selecting an SNPN as described in the first aspect.
  • the embodiments of the present disclosure further provide a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned first aspect.
  • the steps of the SNPN selection method are described in detail below.
  • an embodiment of the present disclosure further provides a chip product, where a computer program is stored in the chip product, and the computer program is used to make the chip product execute the steps of the SNPN selection method described in the first aspect.
  • the SNPN selection method, terminal, device, and storage medium provided by the embodiments of the present disclosure send the first indication information to the AS layer through the NAS layer of the terminal according to actual needs, indicating that the AS layer does not need to obtain the group identification list, so that the terminal can avoid unnecessary Acquiring the group identification list accurately reduces terminal power consumption and improves SNPN selection efficiency.
  • FIG. 1 is a schematic flow diagram of a method for selecting an SPNN provided by an embodiment of the present disclosure
  • FIG. 2 is one of the implementation schematic diagrams of the SPNN selection method provided by the embodiment of the present disclosure
  • Fig. 3 is the second implementation schematic diagram of the SPNN selection method provided by the embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Fig. 5 is a schematic structural diagram of an SNPN selecting device provided by an embodiment of the present disclosure.
  • NPN technology Some new functions have been introduced in NPN technology to further enhance the performance of NPN technology. Examples are as follows.
  • the terminal uses the SNPN authentication information to complete the authentication and registration process in the SNPN network.
  • NPN adds a new function, that is, when the terminal registers to the SNPN network, the terminal uses the authentication information of an external entity independent of the SNPN (such as other external networks), and the authentication process is implemented by the above-mentioned external entity independent of the SNPN.
  • This function can be applied to some occasions, such as factories, large residential areas, campuses, shopping malls, etc.
  • the authentication and authentication process of NPN networks deployed in these places can be provided by external entities/networks.
  • the SNPN user subscription data can be stored in the Universal Subscriber Identity Module (USIM) card in advance, and the terminal uses a specific USIM card. Access to the corresponding SPNN network.
  • USIM Universal Subscriber Identity Module
  • Onboarding SNPN a new type of SNPN user subscription data loading network
  • Loading, terminals without SNPN user subscription data can reside on Onboarding SNPN and obtain SNPN user subscription data remotely through Onboarding SNPN, and then use the acquired SNPN user subscription data to register with the target SNPN network and use the services provided by the SNPN network.
  • the terminal resides in the Onboarding SNPN, and accesses the signing data granting server (Provisioning Server) through the Onboarding SNPN;
  • the Provisioning Server obtains the user subscription data of the terminal from the target SNPN;
  • Provisioning Server sends user subscription data to the terminal through the data transmission channel provided by Onboarding SNPN;
  • the terminal uses the loaded SNPN user subscription data to register to the target SNPN network.
  • NPN introduces the concept of Group ID, which is used to identify a group of external networks.
  • Terminals that support external network authentication information access to the SNPN network and SNPN user subscription data or remote configuration of authentication information can optionally configure information related to group identification at the NAS layer, such as the priority of the authentication data holder.
  • Group ID list that is, Credentials Holder controlled prioritized list of GINs.
  • a new system information block is added to the access network, which includes a list of group identifiers of external networks supported by the SNPN corresponding to the above functions (1) and/or (2).
  • the AS layer of the terminal can read the system information block and send the group identification list in it to the NAS layer of the terminal, so that the NAS layer of the terminal can use the group identification list to select the SNPN and initiate the registration process as needed .
  • the existing SNPN selection The method will lead to a large power consumption of the terminal; moreover, since the system information block of each cell is sent at a fixed time domain position, the terminal needs to wait for the arrival of the time domain position in order to read the system information block, which will also reduce the Efficiency of the SNPN selection process.
  • the NAS layer of the terminal can instruct the AS layer whether to obtain the group identification list as needed, so as to prevent the terminal from unnecessarily reading the system information block containing the group identification list, so as to Reduce the power consumption of the terminal and improve the efficiency of the SNPN selection process.
  • Fig. 1 is a schematic flow chart of the SPNN selection method provided by the embodiment of the present disclosure. As shown in Fig. 1, the method includes the following steps:
  • Step 100 the non-access stratum entity of the terminal sends first indication information to the access stratum entity of the terminal, the first indication information is used to indicate that the access stratum entity of the terminal does not need to obtain a group identification list; the group identification list is supported by SNPN A collection of identities for external networks;
  • NPN introduces the concept of group identification, which is used to identify a group of external networks, for example, a certain SNPN Supported external networks that can implement external authentication
  • the group identification list is the identification set of external networks supported by the SNPN
  • a new system information block is added in the access network, which contains the group identification list
  • the AS of the terminal A layer can obtain a list of group identifiers in this system information block by reading it.
  • the NAS layer of the terminal can refer to the group identification list corresponding to each SNPN, and select a suitable SNPN from the available SNPNs obtained by searching the AS layer.
  • the NAS layer of the terminal may be configured with group identifier configuration information, and the group identifier configuration information includes a group identifier priority list. Then, in the process of selecting an SNPN, the NAS layer may prioritize Select the SNPN corresponding to the high-priority group ID list.
  • the acquisition of the group identification list requires the AS layer of the terminal to search for the strongest cell at each frequency point on the frequency band supported by the terminal and read the system information block containing the group identification list during the process of searching for the available SNPN, thus causing the terminal
  • the power consumption of the system information block is large, and the terminal needs to wait for the arrival of the fixed time domain position in order to read the system information block, which will also reduce the efficiency of the SNPN selection process.
  • the group identification list is used as a reference information to assist the NAS layer to select the SNPN, but the group identification list is not necessary information, that is, when there is no group identification
  • the NAS layer can also select an appropriate SNPN from the available SNPNs searched by the AS layer according to other information (such as SNPN signal strength, SNPN frequency point information, SNPN service provider, etc.).
  • the NAS layer does not need to use the group identifier list to select the SNPN (for example, if the NAS layer does not configure the group identifier configuration information locally, the group identifier list cannot assist the NAS layer to select the SNPN), but the AS layer is searching In the process of using SNPN, the system information block containing the group identification list will still be read, and the group identification list will be obtained and sent to the NAS layer, which will lead to unnecessary increase of terminal power consumption and reduction of SNPN selection efficiency.
  • the NAS layer of the terminal can flexibly indicate whether the AS needs to obtain the system information block (ie SIB15) containing the group identification list according to actual needs, that is, when the group identification list is not actually needed to assist in selecting the SNPN (For example, the NAS layer does not configure group identification configuration information locally, or the terminal does not need to select an SNPN that supports external authentication or remote configuration, or the terminal itself does not support external network authentication information to access the SNPN network and SNPN user subscription data or authentication information Remotely configure these two functions, etc.), send the first indication information to the AS layer, indicating that the AS layer does not need to obtain the group identification list, so as to avoid the increase of terminal power consumption and the reduction of SNPN selection efficiency caused by the terminal obtaining the group identification list question.
  • SIB15 system information block
  • Step 101 the access stratum entity of the terminal searches for available SNPNs according to the first indication information, obtains and sends first SNPN information to the non-access stratum entity of the terminal, and the first SNPN information includes one or more available SNPN identifiers.
  • the AS layer of the terminal when the NAS layer of the terminal indicates that the AS layer does not need to obtain the group identification list, after the AS layer receives the SNPN selection request sent by the NAS layer, it can search for available SNPNs according to the first indication information during the process of searching for available SNPNs. SNPN, do not get list of group ids.
  • the AS layer may search for the available SNPN, and according to the first indication information, receive the system information block but not perform the operation of reading the group identification list; or, according to the first indication information, the AS layer may not receive the information containing the group identification list System Information Block.
  • the AS layer of the terminal can obtain the relevant information of each available SNPN through the process of searching for available SNPNs, such as available SNPN identifiers, but does not obtain a list of group identifiers. Sent to the NAS layer for the NAS layer to select the SNPN.
  • the above first indication information may be carried by the NAS layer in the SNPN selection request and sent to the AS layer, or may be sent by the NAS layer to the AS layer in any other way, which is not specifically limited here.
  • Step 102 the non-access stratum entity of the terminal selects an SNPN based on the first SNPN information.
  • the NAS layer of the terminal can select an SNPN based on the first SNPN information and in the absence of a group identification list.
  • the NAS layer of the terminal sends the first indication information to the AS layer according to actual needs, indicating that the AS layer does not need to obtain the group identification list, thereby avoiding unnecessary acquisition of the group identification list by the terminal, reducing the Reduce terminal power consumption and improve SNPN selection efficiency.
  • the non-access stratum entity of the terminal sends the first indication information to the access stratum entity of the terminal, including:
  • the non-access stratum entity of the terminal determines that the group identifier configuration information is not configured locally, then send the first indication information to the access stratum entity of the terminal;
  • the group identifier configuration information is used to instruct the non-access stratum entity of the terminal to select the SNPN based on the group identifier list.
  • the group identifier configuration information is configuration information related to the group identifier, which may include a group identifier priority list, and the group identifier configuration information may be used to instruct the NAS layer of the terminal to select the SNPN based on the group identifier list, that is, the NAS layer may select the SNPN based on the group identifier list. Whether the group identifier configuration information is configured locally determines whether the SNPN needs to be selected by referring to the group identifier list.
  • the group identification list can only play a role when the group identification configuration information is configured locally at the NAS layer. Therefore, if the NAS layer determines that the group identification configuration information is not locally configured, then It can be determined that there is no need to refer to the group identification list when selecting the SNPN. In this case, the NAS layer can send the first indication information to the AS layer, indicating that the AS layer does not need to obtain the group identification list, so as to avoid the terminal obtaining the group identification list. The problem of increasing terminal power consumption and reducing the efficiency of SNPN selection.
  • the first indication information includes:
  • the first SNPN type Indicates the first SNPN type, and the first SNPN type is common SNPN.
  • the first indication information sent by the NAS layer of the terminal to the AS layer it may either explicitly indicate that the AS layer does not need to obtain the group identification list, or implicitly indicate that the AS layer does not need to obtain the group identification list through the SNPN type.
  • the NAS layer may indicate that the SNPN type to be selected is the first SNPN type, that is, the common SNPN, so that the AS layer may determine that it is not necessary to acquire the group identification list.
  • ordinary SNPN can be understood as an SNPN that does not support the two functions of external network authentication information access to the SNPN network and SNPN user subscription data or remote configuration of authentication information.
  • the method also includes:
  • the non-access stratum entity of the terminal determines that the group identifier configuration information is locally configured, and sends second indication information to the access stratum entity of the terminal, where the second indication information is used to instruct the access stratum entity of the terminal to acquire a list of group identifiers;
  • the access layer entity of the terminal searches for available SNPNs according to the second indication information, acquires and sends second SNPN information to the non-access layer entity of the terminal, and the second SNPN information includes one or more available SNPN identifiers and each available SNPN A list of group identifiers corresponding to the identifier;
  • the non-access stratum entity of the terminal selects the SNPN based on the second SNPN information.
  • the NAS layer sends the first indication information to the AS layer, but the AS layer does not receive the first indication information. Under normal circumstances, the AS layer will still obtain the group identification list by default.
  • the NAS layer may send the second indication information to the AS layer to instruct the AS layer to obtain the group identification when it is determined that the group identification configuration information is locally configured. list, so that the AS layer can obtain the group identification list only when it is determined that the second indication information is received, which avoids misjudgment of the AS layer and causes unnecessary acquisition of the group identification list, thereby increasing terminal power consumption and reducing SNPN selection The problem of efficiency.
  • the AS layer can search for available SNPNs according to the second indication information during the process of searching for available SNPNs, and obtain A list of group ids.
  • the AS layer may search for an available SNPN, and according to the second indication information, receive the system information block containing the group identification list and read the group identification list in the system information block.
  • the AS layer of the terminal can obtain the relevant information of each available SNPN through the process of searching for available SNPNs, such as the available SNPN ID, and obtain the list of group IDs corresponding to each available SNPN ID. After the search is completed, the AS layer can use the The search result, that is, the second SNPN information is sent to the NAS layer for the NAS layer to select a SNPN.
  • the NAS layer of the terminal After receiving the second SNPN information sent by the AS layer, the NAS layer of the terminal can select the SNPN based on the second SNPN information, referring to the group identification list and group identification configuration information.
  • the above second indication information may be carried by the NAS layer in the SNPN selection request and sent to the AS layer, or may be sent by the NAS layer to the AS layer in any other way, which is not specifically limited here.
  • the NAS layer of the terminal can also send the second indication information to the AS layer, instructing the AS layer to obtain the group identification list, thereby improving the flexibility of the indication and avoiding the Misjudgment at the AS layer leads to unnecessarily obtaining a group identification list, thereby increasing terminal power consumption and reducing SNPN selection efficiency.
  • the second instruction information includes:
  • the second SNPN type is an SNPN type other than the first SNPN type.
  • the AS layer may be explicitly instructed to obtain the group identification list, or the AS layer may be implicitly instructed to obtain the group identification list through the SNPN type.
  • the NAS layer may indicate that the SNPN type to be selected is the second SNPN type (that is, other SNPN types except the first SNPN type), for example, the second SNPN type may be an SNPN type that supports external authentication.
  • the SNPN type, or the SNPN type that supports remote configuration so that the AS layer can determine based on this that the NAS layer indicates that it needs to obtain the group identification list.
  • the SNPN that supports external authentication can be understood as the SNPN that supports the function of external network authentication information to access the SNPN network
  • the SNPN that supports remote configuration can be understood as the SNPN that supports the function of remote configuration of SNPN user subscription data or authentication information.
  • Figure 2 is one of the implementation schematic diagrams of the SPNN selection method provided by the embodiment of the present disclosure.
  • the NAS layer of the terminal indicates that the AS layer does not need to read the group identification list information, and the specific steps are as follows:
  • Step 200 SNPN selection trigger
  • the NAS layer of the terminal has no configuration information related to the group ID, so the request sent to the AS layer indicates that it does not need to read the group ID list in the system information.
  • step 201 the AS layer of the terminal determines, according to the instruction of the NAS layer, that it is not necessary to read the system information block of the corresponding group identification list when searching for an available SNPN.
  • Step 202 the AS layer of the terminal starts to search for available frequency points on all supported frequency bands, and synchronizes to the strongest cell on the corresponding frequency point, and reads the master information block (Master Information Block, MIB) and system information block 1 of the cell (System Information Block 1, SIB1), obtain SNPN identification (SNPN ID) and other related information.
  • MIB Master Information Block
  • SIB1 System Information Block 1, SIB1
  • step 203 the AS layer of the terminal reports all available SNPN information searched to the NAS layer.
  • Step 204 the NAS layer of the terminal performs SNPN selection according to the available SNPN information and other information obtained in step 203, and notifies the AS layer of the terminal of the selected SNPN identifier.
  • Step 205 the AS layer of the terminal executes a cell selection process, and camps on a cell belonging to the selected SNPN.
  • Figure 3 is the second implementation schematic diagram of the SPNN selection method provided by the embodiment of the present disclosure.
  • the NAS layer of the terminal indicates that the AS layer needs to read the group identification list information, and the specific steps are as follows:
  • Step 300 SNPN selection is triggered, and the NAS layer of the terminal is configured with configuration information related to group identifiers, so the request sent to the AS layer indicates that the group identifier list in the system information needs to be read.
  • step 301 the AS layer of the terminal determines, according to the instruction of the NAS layer, that it needs to read the system information block of the corresponding group identifier list when searching for an available SNPN.
  • Step 302 the AS layer of the terminal starts to search for available frequency points on all supported frequency bands, and synchronizes to the strongest cell on the corresponding frequency point, and reads the MIB and SIB1 of the cell. And additionally read the system information block containing the group identification list to obtain the SNPN identification (SNPN ID), and related information such as the corresponding group identification list.
  • SNPN ID SNPN identification
  • Step 303 the AS layer of the terminal reports all available SNPN information searched (including related information such as SNPN identifiers and corresponding group identifier lists, etc.) to the NAS layer.
  • Step 304 the NAS layer of the terminal performs SNPN selection according to the available SNPN information and other information obtained in step 303, and notifies the AS layer of the terminal of the selected SNPN identifier.
  • Step 305 the AS layer of the terminal executes a cell selection process, and camps on a cell belonging to the selected SNPN.
  • Fig. 4 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in Fig. 4, the terminal includes a memory 420, a transceiver 410, and a processor 400; wherein, the processor 400 and the memory 420 may also be arranged physically separately.
  • the memory 420 is used to store computer programs; the transceiver 410 is used to send and receive data under the control of the processor 400 .
  • the transceiver 410 is used to receive and transmit data under the control of the processor 400 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 400 and various circuits of the memory represented by the memory 420 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 410 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 430 may also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.
  • the processor 400 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 400 calls the computer program stored in the memory 420 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: the non-access stratum entity of the terminal sends a message to the access stratum entity of the terminal
  • the first indication information is used to indicate that the access layer entity of the terminal does not need to obtain the group identification list; the group identification list is a set of identifications of external networks supported by the SNPN; the access layer entity of the terminal according to the first indication information, Search for available SNPNs, obtain and send first SNPN information to the non-access stratum entity of the terminal, where the first SNPN information includes one or more available SNPN identifiers; the non-access stratum entity of the terminal selects the SNPN based on the first SNPN information.
  • the non-access stratum entity of the terminal sends the first indication information to the access stratum entity of the terminal, including: if the non-access stratum entity of the terminal determines that the group identification configuration information is not configured locally, send the first indication information to the access stratum entity of the terminal The entity sends first indication information; wherein, the group identifier configuration information is used to instruct the non-access stratum entity of the terminal to select the SNPN based on the group identifier list.
  • the first indication information includes: explicitly indicating that the access layer entity of the terminal does not need to obtain the group identification list; and/or indicating the first SNPN type, where the first SNPN type is a common SNPN.
  • the access layer entity of the terminal searches for an available SNPN according to the first indication information, including: the terminal access layer entity searches for an available SNPN, and according to the first indication information, receives the system information block but does not read the group identifier The operation of the list; or, according to the first indication information, not receiving the system information block including the group identification list.
  • the method further includes: the non-access stratum entity of the terminal determines that group identification configuration information is configured locally, and sends second indication information to the access stratum entity of the terminal, where the second indication information is used to indicate that the access stratum entity of the terminal
  • the entity acquires a list of group identifiers; the access layer entity of the terminal searches for available SNPNs according to the second indication information, acquires and sends second SNPN information to the non-access layer entity of the terminal, and the second SNPN information contains one or more available SNPNs An identifier and a group identifier list corresponding to each available SNPN identifier; the non-access stratum entity of the terminal selects the SNPN based on the second SNPN information.
  • the second indication information includes: explicitly instructing the access layer entity of the terminal to obtain the group identification list; and/or indicating the second SNPN type, where the second SNPN type is an SNPN type other than the first SNPN type .
  • the second SNPN type is an SNPN type that supports external authentication, or an SNPN type that supports remote configuration.
  • the access layer entity of the terminal searches for the available SNPN according to the second indication information, including: the access layer entity of the terminal searches for the available SNPN, and according to the second indication information, receives the system information block containing the group identifier list and reads Get the list of group IDs in the system information block.
  • FIG. 5 is a schematic structural diagram of an SPNN selection device provided by an embodiment of the present disclosure. As shown in FIG. 5, the device includes:
  • the sending unit 500 is used for the non-access stratum entity of the terminal to send first indication information to the access stratum entity of the terminal, where the first indication information is used to indicate that the access stratum entity of the terminal does not need to obtain a group identification list;
  • the group identification list is A collection of identities of external networks supported by SNPN;
  • the obtaining unit 510 is used for the access layer entity of the terminal to search for available SNPNs according to the first indication information, obtain and send the first SNPN information to the non-access layer entity of the terminal, and the first SNPN information includes one or more available SNPNs logo;
  • the selecting unit 520 is used for the non-access stratum entity of the terminal to select the SNPN based on the first SNPN information.
  • the sending unit 500 is specifically configured to: if the non-access stratum entity of the terminal determines that the group identifier configuration information is not configured locally, send the first indication information to the access stratum entity of the terminal; wherein, the group identifier configuration information uses To instruct the terminal's non-access stratum entity to select the SNPN based on the group identification list.
  • the first indication information includes: explicitly indicating that the access layer entity of the terminal does not need to obtain the group identification list; and/or indicating the first SNPN type, where the first SNPN type is a common SNPN.
  • the obtaining unit 510 is specifically configured to: the access layer entity of the terminal searches for an available SNPN, and according to the first indication information, receives the system information block but does not perform the operation of reading the group identification list; or, according to the first indication information, do not receive system information blocks containing a list of group ids.
  • the sending unit 500 is further configured to: the non-access stratum entity of the terminal determines that group identifier configuration information is locally configured, and sends second indication information to the access stratum entity of the terminal, where the second indication information is used to indicate the terminal's
  • the access layer entity acquires a list of group identifiers
  • the obtaining unit 510 is further configured to: the access layer entity of the terminal searches for an available SNPN according to the second indication information, obtains and sends second SNPN information to the non-access layer entity of the terminal, and the second SNPN information includes one or more A list of available SNPN identifiers and group identifiers corresponding to each available SNPN identifier;
  • the selecting unit 520 is further configured to: the non-access stratum entity of the terminal selects the SNPN based on the second SNPN information.
  • the second indication information includes: explicitly instructing the access layer entity of the terminal to obtain the group identification list; and/or indicating the second SNPN type, where the second SNPN type is an SNPN type other than the first SNPN type .
  • the second SNPN type is an SNPN type that supports external authentication, or an SNPN type that supports remote configuration.
  • the access layer entity of the terminal searches for the available SNPN according to the second indication information, including: the access layer entity of the terminal searches for the available SNPN, and according to the second indication information, receives the system information block including the group identification list and reads Get the list of group IDs in the system information block.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • an embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and the computer program is used to make a computer execute the SNPN selection method provided by the above-mentioned embodiments, including :
  • the non-access stratum entity of the terminal sends first indication information to the access stratum entity of the terminal, the first indication information is used to indicate that the access stratum entity of the terminal does not need to obtain a group identification list;
  • the group identification list is an external network supported by SNPN A set of identifiers;
  • the access layer entity of the terminal searches for available SNPNs according to the first indication information, acquires and sends first SNPN information to the non-access layer entity of the terminal, and the first SNPN information includes one or more available SNPN identifiers;
  • the non-access stratum entity of the terminal selects the SNPN based on the first SNPN information.
  • the computer-readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet Wireless business (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new air interface (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless business
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • the terminal involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal may be different.
  • the terminal may be called a user equipment (User Equipment, UE).
  • UE User Equipment
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • a mobile terminal equipment such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in the embodiments of the present disclosure.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

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Abstract

本公开提供一种SNPN选择方法、终端、装置及存储介质，该方法包括：终端的非接入层实体向终端的接入层实体发送第一指示信息，第一指示信息用于指示终端的接入层实体不需要获取组标识列表；组标识列表为SNPN支持的外部网络的标识集合；终端的接入层实体根据第一指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第一SNPN信息，第一SNPN信息中包含一个或多个可用SNPN标识；终端的非接入层实体基于第一SNPN信息，选择SNPN。从而可以避免终端不必要地获取组标识列表，降低了终端耗电并提高了SNPN选择效率。

Description

SNPN选择方法、终端、装置及存储介质
相关申请的交叉引用
本申请要求于2021年10月21日提交的申请号为2021112294788，发明名称为“SNPN选择方法、终端、装置及存储介质”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域，尤其涉及一种SNPN选择方法、终端、装置及存储介质。
背景技术
第五代移动通信(the 5th generation mobile communication，5G)R16版本中引入了一种新型的网络-非公共网络(Non-Public Network，NPN)。NPN可以通过多种方式部署，既可以独立于已经存在的5G公共网络部署，即独立非公共网络(Stand-alone Non-Public Network，SNPN)，也可以通过共享的方式部署在现有的5G公共网络上，即公共网络集成的非公共网络(Public Network Integrated-NPN，PNI-NPN)。
对于SNPN，引入支持使用外部网络鉴权信息访问SNPN网络和支持SNPN用户签约数据或鉴权信息的远程配置两大功能，并为此引入了组标识(Group ID)的概念，组标识用于标识一组外部网络(上述外部鉴权或远程配置功能所对应的SNPN支持的外部网络)，相应地，在接入网新增了一个系统信息块，该系统信息块中包含组标识列表。支持上述外部鉴权和远程配置功能的用户设备(User Equipment，UE)(或者又称之为终端设备，以下简称为终端)在进行SNPN选择过程中，终端的接入层(Access Stratum，AS)可读取上述系统信息块并将其中的组标识列表发给终端的非接入层(Non-Access Stratum，NAS)，以供终端的NAS层根据需要使用组标识列表选择SNPN。
由于组标识列表的获取需要终端的AS层在搜索可用SNPN过程中，搜索终端支持的频段上的每个频点的最强小区并读取包含组标识列表的系统信息块，因此现有SNPN选择方法会导致终端的耗电量较大；而且，由于每个小区的系统信息块是在固定的时域位置发送，终端为了读取该系统信息块需要等待该时域位置的到来，也会降低SNPN选择过程的效率。因此，如何提出一种SNPN选择方法，以降低终端耗电并提高SNPN选择过程的效率，是业界亟需解决的重要课题。
发明内容
针对现有技术存在的问题，本公开实施例提供一种SNPN选择方法、终端、装置及存储介质。
第一方面，本公开实施例提供一种独立非公共网络SNPN选择方法，包括：
终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
可选地，所述终端的非接入层实体向所述终端的接入层实体发送第一指示信息，包括：
所述终端的非接入层实体若确定本地未配置组标识配置信息，则向所述终端的接入层实体发送第一指示信息；
其中，所述组标识配置信息用于指示所述终端的非接入层实体基于组标识列表选择SNPN。
可选地，所述第一指示信息中包括：
显式指示所述终端的接入层实体不需要获取组标识列表；和/或，
指示第一SNPN类型，所述第一SNPN类型为普通SNPN。
可选地，所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，包括：
所述终端的接入层实体搜索可用SNPN，并根据所述第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据所述第一指示信息，不接收包含组标识列表的系统信息块。
可选地，所述方法还包括：
所述终端的非接入层实体确定本地配置有组标识配置信息，向所述终端的接入层实体发送第二指示信息，所述第二指示信息用于指示所述终端的接入层实体获取组标识列表；
所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第二SNPN信息，所述第二SNPN信息中包含一个或多个可用SNPN标识和每个所述可用SNPN标识对应的组标识列表；
所述终端的非接入层实体基于所述第二SNPN信息，选择SNPN。
可选地，所述第二指示信息中包括：
显式指示所述终端的接入层实体获取组标识列表；和/或，
指示第二SNPN类型，所述第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
可选地，所述第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
可选地，所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，包括：
所述终端的接入层实体搜索可用SNPN，并根据所述第二指示信息，接收包含组标识列表的系统信息块并读取所述系统信息块中的组标识列表。
第二方面，本公开实施例还提供一种终端，包括存储器，收发机，处理器：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
可选地，所述终端的非接入层实体向所述终端的接入层实体发送第一指示信息，包括：
所述终端的非接入层实体若确定本地未配置组标识配置信息，则向所述终端的接入层实体发送第一指示信息；
其中，所述组标识配置信息用于指示所述终端的非接入层实体基于组标识列表选择SNPN。
可选地，所述第一指示信息中包括：
显式指示所述终端的接入层实体不需要获取组标识列表；和/或，
指示第一SNPN类型，所述第一SNPN类型为普通SNPN。
可选地，所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，包括：
所述终端的接入层实体搜索可用SNPN，并根据所述第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据所述第一指示信息，不接收包含组标识列表的系统信息块。
可选地，所述操作还包括：
所述终端的非接入层实体确定本地配置有组标识配置信息，向所述终端的接入层实体发送第二指示信息，所述第二指示信息用于指示所述终端的接入层实体获取组标识列表；
所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第二SNPN信息，所述第二SNPN信息中包含一个或多个可用SNPN标识和每个所述可用SNPN标识对应的组标识列 表；
所述终端的非接入层实体基于所述第二SNPN信息，选择SNPN。
可选地，所述第二指示信息中包括：
显式指示所述终端的接入层实体获取组标识列表；和/或，
指示第二SNPN类型，所述第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
可选地，所述第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
可选地，所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，包括：
所述终端的接入层实体搜索可用SNPN，并根据所述第二指示信息，接收包含组标识列表的系统信息块并读取所述系统信息块中的组标识列表。
第三方面，本公开实施例还提供一种独立非公共网络SNPN选择装置，包括：
发送单元，用于终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
获取单元，用于所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
选择单元，用于所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
第四方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行如上所述第一方面所述的SNPN选择方法的步骤。
第五方面，本公开实施例还提供一种通信设备，所述通信设备中存储有计算机程序，所述计算机程序用于使通信设备执行如上所述第一方面所述的SNPN选择方法的步骤。
第六方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使处理器执行如上所述第一方面所述的SNPN选择方法的步骤。
第七方面，本公开实施例还提供一种芯片产品，所述芯片产品中存储有计算机程序，所述计算机程序用于使芯片产品执行如上所述第一方面所述的SNPN选择方法的步骤。
本公开实施例提供的SNPN选择方法、终端、装置及存储介质，通过终端的NAS层根据实际需要向AS层发送第一指示信息，指示AS层不需要获取组标识列表，从而可以避免终端不必要地获取组标识列表，降低了终端耗电并提高了SNPN选择效率。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例提供的SNPN选择方法的流程示意图；
图2是本公开实施例提供的SNPN选择方法的实施示意图之一；
图3是本公开实施例提供的SNPN选择方法的实施示意图之二；
图4是本公开实施例提供的终端的结构示意图；
图5是本公开实施例提供的SNPN选择装置的结构示意图。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
为了便于更加清晰地理解本公开各实施例，首先对一些相关的背景知识进行如下介绍。
NPN技术中引入了一些新的功能，进一步增强NPN技术性能。举例如下。
(1)支持使用外部网络鉴权信息访问SNPN网络
正常情况下，终端使用SNPN的鉴权信息在SNPN网络内完成鉴权及注册过程。NPN增加了一个新的功能，即在终端注册到SNPN网络时，终端使用独立于SNPN的外部实体(如其他外部网络)的鉴权信息，鉴权过程由上述独立于SNPN的外部实体实施。此功能可以应用于一些场合，如工厂、大型居住区、校园、商场等，这些地方部署的NPN网络，其鉴权认证过程可以由外部实体/网络提供。
(2)支持SNPN用户签约数据或鉴权信息远程配置
终端侧要接入SNPN网络，需要终端侧配置有相关SNPN用户签约数据，SNPN用户签约数据可以提前存储在全球用户身份模块(Universal Subscriber Identity Module，USIM)卡中，终端使用特定的USIM卡即可接入相应的SNPN网络。
对于SNPN网络的某些应用场景如工厂设备，为每台新增设备配置专用的USIM卡无论从灵活性和成本角度都存在可优化的空间。因此针对SNPN提出了新的需求，即终端可以不使用预先配置SNPN用户签约数据的USIM卡，通过引入一种新型的SNPN用户签约数据载入网络(以下简称Onboarding SNPN)用于用户签约数据的远程载入，没有SNPN用户签约数据的终端可以驻留到Onboarding SNPN并通过Onboarding SNPN远程获取到SNPN用户签约数据，进而使用获取的SNPN用户签约数据注册到目标SNPN网络，使用SNPN网络提供的服务。其基本步骤如下：
a、终端驻留到Onboarding SNPN，并通过Onboarding SNPN访问签约数据授予服务器(Provisioning Server)；
b、Provisioning Server从目标SNPN获取终端的用户签约数据；
c、Provisioning Server通过Onboarding SNPN提供的数据传输通道将用户签约数据发送到终端；
d、终端使用载入的SNPN用户签约数据注册到目标SNPN网络。
(3)组标识列表(group id list)
为了支持上述功能(1)和(2)，NPN引入了组标识(Group ID)的概念，组标识用于标识一组外部网络。支持外部网络鉴权信息访问SNPN网络和SNPN用户签约数据或鉴权信息远程配置这两个功能的终端，可选地在NAS层配置与组标识有关的信息，如鉴权数据持有者的优先组标识列表(即Credentials Holder controlled prioritized list of GINs)。相应地，在接入网新增了一个系统信息块，其中包含了上述功能(1)和/或(2)对应的SNPN支持的外部网络的组标识列表。当终端进行SNPN选择时，终端的AS层可读取该系统信息块并将其中的组标识列表发给终端的NAS层，以供终端的NAS层根据需要使用组标识列表选择SNPN并发起注册过程。
由于组标识列表的获取需要终端的AS层在搜索可用SNPN过程中，搜索终端支持的频段上的每个频点的最强小区并读取包含组标识列表的系统信息块，因此现有SNPN选择方法会导致终端的耗电量较大；而且，由于每个小区的系统信息块是在固定的时域位置发送，终端为了读取该系统信息块需要等待该时域位置的到来，也会降低SNPN选择过程的效率。
针对上述问题，本公开各实施例提供一种解决方案，终端的NAS层可以根据需要指示AS层是否获取组标识列表，从而能够避免终端不必要地读取包含组标识列表的系统信息块，以降低终端的耗电，并提高SNPN选择过程的效率。
图1为本公开实施例提供的SNPN选择方法的流程示意图，如图1所示，该方法包括如下步骤：
步骤100、终端的非接入层实体向终端的接入层实体发送第一指示信息， 第一指示信息用于指示终端的接入层实体不需要获取组标识列表；组标识列表为SNPN支持的外部网络的标识集合；
具体地，为了支持外部网络鉴权信息访问SNPN网络和SNPN用户签约数据或鉴权信息远程配置的功能，NPN引入了组标识的概念，组标识用于标识一组外部网络，例如，某个SNPN支持的可以实施外部鉴权的外部网络，组标识列表即为SNPN所支持的外部网络的标识集合，相应地，接入网中新增了一个系统信息块，其中包含组标识列表，终端的AS层可以通过读取该系统信息块获取其中的组标识列表。
在选择SNPN的过程中，终端的NAS层可以参考每个SNPN对应的组标识列表，从AS层搜索获得的各可用SNPN中选择合适的SNPN。例如，终端的NAS层可能配置有组标识配置信息，组标识配置信息中包含有组标识优先级列表，那么，NAS层在选择SNPN的过程中，可以根据每个SNPN对应的组标识列表，优先选择高优先级的组标识列表对应的SNPN。
然而，组标识列表的获取需要终端的AS层在搜索可用SNPN过程中，搜索终端支持的频段上的每个频点的最强小区并读取包含组标识列表的系统信息块，由此导致终端的耗电量较大，且终端为了读取该系统信息块需要等待固定时域位置的到来，也会降低SNPN选择过程的效率。
根据上述描述，本领域技术人员可以理解的是，SNPN选择的过程中，组标识列表作为一个参考信息，可以辅助NAS层选择SNPN，但组标识列表并非必要信息，也就是说，在没有组标识列表的情况下，NAS层也可以根据其他信息(如SNPN信号强度、SNPN频点信息、SNPN服务提供方等等)从AS层搜索获得的各可用SNPN中选择合适的SNPN。但现有SNPN选择机制下，虽然NAS层可以不需要使用组标识列表选择SNPN(例如若NAS层本地没有配置组标识配置信息，则组标识列表无法辅助NAS层选择SNPN)，但AS层在搜索可用SNPN的过程中仍然会去读取包含组标识列表的系统信息块，并获取组标识列表后发送给NAS层，这就会导致不必要地增加终端耗电和降低SNPN选择效率。
因此，本公开实施例中，提出终端的NAS层可以根据实际需要，灵活地 指示AS是否需要获取包含组标识列表的系统信息块(即SIB15)，即在实际不需要组标识列表辅助选择SNPN时(例如，NAS层本地没有配置组标识配置信息，或者终端不需要选择支持外部鉴权或远程配置的SNPN，或者终端本身不支持外部网络鉴权信息访问SNPN网络和SNPN用户签约数据或鉴权信息远程配置这两个功能等等)，向AS层发送第一指示信息，指示AS层不需要获取组标识列表，以此避免终端获取组标识列表所导致的增加终端耗电和降低SNPN选择效率的问题。
步骤101、终端的接入层实体根据第一指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第一SNPN信息，第一SNPN信息中包含一个或多个可用SNPN标识。
具体地，在终端的NAS层指示AS层不需要获取组标识列表的情况下，AS层接收到NAS层发出的SNPN选择请求后，可以在搜索可用SNPN过程中，根据第一指示信息，搜索可用SNPN，不获取组标识列表。例如，AS层可以搜索可用SNPN，并根据第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，AS层也可以根据第一指示信息，不接收包含组标识列表的系统信息块。
因此，终端的AS层通过搜索可用SNPN的过程，可以获取到各个可用SNPN的相关信息，例如可用SNPN标识，但不获取组标识列表，搜索完成后，AS层可以将搜索结果即第一SNPN信息发送给NAS层，以供NAS层选择SNPN。
需要说明的是，上述第一指示信息可以是NAS层携带在SNPN选择请求中发送给AS层的，也可以是NAS层通过其他任意方式发送给AS层的，在此不做具体限制。
步骤102、终端的非接入层实体基于第一SNPN信息，选择SNPN。
具体地，终端的NAS层接收到AS层发送的第一SNPN信息后，即可基于该第一SNPN信息，在没有组标识列表的情况下，选择SNPN。
本公开实施例提供的SNPN选择方法，通过终端的NAS层根据实际需要向AS层发送第一指示信息，指示AS层不需要获取组标识列表，从而可以避 免终端不必要地获取组标识列表，降低了终端耗电并提高了SNPN选择效率。
可选地，终端的非接入层实体向终端的接入层实体发送第一指示信息，包括：
终端的非接入层实体若确定本地未配置组标识配置信息，则向终端的接入层实体发送第一指示信息；
其中，组标识配置信息用于指示终端的非接入层实体基于组标识列表选择SNPN。
具体地，组标识配置信息为组标识相关的配置信息，其中可以包含组标识优先级列表，组标识配置信息可用于指示终端的NAS层基于组标识列表选择SNPN，也就是说，NAS层可以根据本地是否配置有组标识配置信息确定是否需要参考组标识列表来选择SNPN。
可以理解，终端的NAS层在选择SNPN的过程中，组标识列表需要在NAS层本地配置有组标识配置信息的情况下才能发挥作用，因此，NAS层若确定本地未配置组标识配置信息，则可以确定选择SNPN时不需要参考组标识列表，在这种情况下，NAS层可以向AS层发送第一指示信息，指示AS层不需要获取组标识列表，以避免终端获取组标识列表所导致的增加终端耗电和降低SNPN选择效率的问题。
可选地，第一指示信息中包括：
显式指示终端的接入层实体不需要获取组标识列表；和/或，
指示第一SNPN类型，第一SNPN类型为普通SNPN。
具体地，终端的NAS层向AS层发送的第一指示信息中，既可以显式指示AS层不需要获取组标识列表，也可以通过SNPN类型隐式指示AS层不需要获取组标识列表。
对于上述后一种指示方式，NAS层可以指示其待选择的SNPN类型为第一SNPN类型即普通SNPN，从而AS层可以据此确定不需要获取组标识列表。其中，普通SNPN可理解为不支持外部网络鉴权信息访问SNPN网络和SNPN用户签约数据或鉴权信息远程配置这两个功能的SNPN。
可选地，该方法还包括：
终端的非接入层实体确定本地配置有组标识配置信息，向终端的接入层实体发送第二指示信息，第二指示信息用于指示终端的接入层实体获取组标识列表；
终端的接入层实体根据第二指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第二SNPN信息，第二SNPN信息中包含一个或多个可用SNPN标识和每个可用SNPN标识对应的组标识列表；
终端的非接入层实体基于第二SNPN信息，选择SNPN。
具体地，为了提高指示的灵活性，以及为了避免某些情况下终端的AS层发生误判，例如，NAS层向AS层发送第一指示信息，但AS层未收到第一指示信息的情况下，AS层会默认仍然去获取组标识列表，本公开实施例中，NAS层可以在确定本地配置有组标识配置信息的情况下，向AS层发送第二指示信息，指示AS层获取组标识列表，从而AS层可以在确定接收到第二指示信息的情况下，才会去获取组标识列表，避免了AS层发生误判导致不必要地获取组标识列表从而增加终端耗电和降低SNPN选择效率的问题。
在终端的NAS层指示AS层需要获取组标识列表的情况下，AS层接收到NAS层发出的SNPN选择请求后，可以在搜索可用SNPN过程中，根据第二指示信息，搜索可用SNPN，并获取组标识列表。例如，AS层可以搜索可用SNPN，并根据第二指示信息，接收包含组标识列表的系统信息块并读取系统信息块中的组标识列表。
因此，终端的AS层通过搜索可用SNPN的过程，可以获取到各个可用SNPN的相关信息，例如可用SNPN标识，并获取到每个可用SNPN标识对应的组标识列表，搜索完成后，AS层可以将搜索结果即第二SNPN信息发送给NAS层，以供NAS层选择SNPN。
终端的NAS层接收到AS层发送的第二SNPN信息后，即可基于该第二SNPN信息，参考组标识列表和组标识配置信息，选择SNPN。
需要说明的是，上述第二指示信息可以是NAS层携带在SNPN选择请求中发送给AS层的，也可以是NAS层通过其他任意方式发送给AS层的，在此不做具体限制。
本公开实施例提供的SNPN选择方法，终端的NAS层还可以向AS层发送第二指示信息，指示AS层获取组标识列表，从而可以提高指示的灵活性，并可以避免某些情况下终端的AS层发生误判导致不必要地获取组标识列表从而增加终端耗电和降低SNPN选择效率的问题。
可选地，第二指示信息中包括：
显式指示终端的接入层实体获取组标识列表；和/或，
指示第二SNPN类型，第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
具体地，终端的NAS层向AS层发送的第二指示信息中，既可以显式指示AS层获取组标识列表，也可以通过SNPN类型隐式指示AS层获取组标识列表。
对于上述后一种指示方式，NAS层可以指示其待选择的SNPN类型为第二SNPN类型(即除第一SNPN类型以外的其他SNPN类型)，例如，第二SNPN类型可以为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型，从而AS层可以据此确定NAS层指示其需要获取组标识列表。其中，支持外部鉴权的SNPN可理解为支持外部网络鉴权信息访问SNPN网络的功能的SNPN，支持远程配置的SNPN可理解为支持SNPN用户签约数据或鉴权信息远程配置的功能的SNPN。
以下通过具体实施例对上述SNPN选择方法进行举例说明。
图2为本公开实施例提供的SNPN选择方法的实施示意图之一，如图2所示，本实施例中，终端的NAS层指示AS层不需要读取组标识列表信息，其具体步骤如下：
步骤200、SNPN选择触发，终端的NAS层没有组标识相关的配置信息，因此在发给AS层的请求中指示不需要读取系统信息中的组标识列表。
步骤201、终端的AS层根据NAS层指示，判定在搜索可用SNPN时不需要读取对应的组标识列表的系统信息块。
步骤202、终端的AS层开始搜索所有支持频带上的可用频点，并同步到对应频点上的最强小区，读取该小区的主信息块(Master Information Block， MIB)和系统信息块1(System Information Block 1，SIB1)，获得SNPN标识(SNPN ID)等相关信息。
步骤203、终端的AS层将搜索到的所有可用SNPN信息上报NAS层。
步骤204、终端的NAS层根据步骤203中获得的可用SNPN信息及其他信息，执行SNPN选择，并将选定的SNPN标识通知到终端的AS层。
步骤205、终端的AS层执行小区选择过程，驻留到归属于选定SNPN的小区上。
图3为本公开实施例提供的SNPN选择方法的实施示意图之二，如图3所示，本实施例中，终端的NAS层指示AS层需要读取组标识列表信息，其具体步骤如下：
步骤300、SNPN选择触发，终端的NAS层配置有组标识相关的配置信息，因此在发给AS层的请求中指示需要读取系统信息中的组标识列表。
步骤301、终端的AS层根据NAS层指示，判定在搜索可用SNPN时需要读取对应的组标识列表的系统信息块。
步骤302、终端的AS层开始搜索所有支持频带上的可用频点，并同步到对应频点上的最强小区，读取该小区的MIB和SIB1。并且额外地读取包含组标识列表的系统信息块，以获得SNPN标识(SNPN ID)，及对应的组标识列表等相关信息。
步骤303、终端的AS层将搜索到的所有可用SNPN信息(包括SNPN标识及对应的组标识列表等相关信息等)上报NAS层。
步骤304、终端的NAS层根据步骤303中获得的可用SNPN信息及其他信息，执行SNPN选择，并将选定的SNPN标识通知到终端的AS层。
步骤305、终端的AS层执行小区选择过程，驻留到归属于选定SNPN的小区上。
本公开各实施例提供的方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
图4为本公开实施例提供的终端的结构示意图，如图4所示，该终端包 括存储器420，收发机410和处理器400；其中，处理器400与存储器420也可以物理上分开布置。
存储器420，用于存储计算机程序；收发机410，用于在处理器400的控制下收发数据。
具体地，收发机410用于在处理器400的控制下接收和发送数据。
其中，在图4中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器400代表的一个或多个处理器和存储器420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机410可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口430还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器400负责管理总线架构和通常的处理，存储器420可以存储处理器400在执行操作时所使用的数据。
处理器400可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器400通过调用存储器420存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：终端的非接入层实体向终端的接入层实体发送第一指示信息，第一指示信息用于指示终端的接入层实体不需要获取组标识列表；组标识列表为SNPN支持的外部网络的标识集合；终端的接入层实体根据第一指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第一SNPN信息，第一SNPN信息中包含一个或多个可用SNPN标识；终端的非接入层实体基于第一SNPN信息，选择SNPN。
可选地，终端的非接入层实体向终端的接入层实体发送第一指示信息， 包括：终端的非接入层实体若确定本地未配置组标识配置信息，则向终端的接入层实体发送第一指示信息；其中，组标识配置信息用于指示终端的非接入层实体基于组标识列表选择SNPN。
可选地，第一指示信息中包括：显式指示终端的接入层实体不需要获取组标识列表；和/或，指示第一SNPN类型，第一SNPN类型为普通SNPN。
可选地，终端的接入层实体根据第一指示信息，搜索可用SNPN，包括：终端的接入层实体搜索可用SNPN，并根据第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据第一指示信息，不接收包含组标识列表的系统信息块。
可选地，该方法还包括：终端的非接入层实体确定本地配置有组标识配置信息，向终端的接入层实体发送第二指示信息，第二指示信息用于指示终端的接入层实体获取组标识列表；终端的接入层实体根据第二指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第二SNPN信息，第二SNPN信息中包含一个或多个可用SNPN标识和每个可用SNPN标识对应的组标识列表；终端的非接入层实体基于第二SNPN信息，选择SNPN。
可选地，第二指示信息中包括：显式指示终端的接入层实体获取组标识列表；和/或，指示第二SNPN类型，第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
可选地，第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
可选地，终端的接入层实体根据第二指示信息，搜索可用SNPN，包括：终端的接入层实体搜索可用SNPN，并根据第二指示信息，接收包含组标识列表的系统信息块并读取系统信息块中的组标识列表。
在此需要说明的是，本公开实施例提供的上述终端，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图5为本公开实施例提供的SNPN选择装置的结构示意图，如图5所示，该装置包括：
发送单元500，用于终端的非接入层实体向终端的接入层实体发送第一指示信息，第一指示信息用于指示终端的接入层实体不需要获取组标识列表；组标识列表为SNPN支持的外部网络的标识集合；
获取单元510，用于终端的接入层实体根据第一指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第一SNPN信息，第一SNPN信息中包含一个或多个可用SNPN标识；
选择单元520，用于终端的非接入层实体基于第一SNPN信息，选择SNPN。
可选地，发送单元500，具体用于：终端的非接入层实体若确定本地未配置组标识配置信息，则向终端的接入层实体发送第一指示信息；其中，组标识配置信息用于指示终端的非接入层实体基于组标识列表选择SNPN。
可选地，第一指示信息中包括：显式指示终端的接入层实体不需要获取组标识列表；和/或，指示第一SNPN类型，第一SNPN类型为普通SNPN。
可选地，获取单元510，具体用于：终端的接入层实体搜索可用SNPN，并根据第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据第一指示信息，不接收包含组标识列表的系统信息块。
可选地，发送单元500，还用于：终端的非接入层实体确定本地配置有组标识配置信息，向终端的接入层实体发送第二指示信息，第二指示信息用于指示终端的接入层实体获取组标识列表；
获取单元510，还用于：终端的接入层实体根据第二指示信息，搜索可用SNPN，获取并向终端的非接入层实体发送第二SNPN信息，第二SNPN信息中包含一个或多个可用SNPN标识和每个可用SNPN标识对应的组标识列表；
选择单元520，还用于：终端的非接入层实体基于第二SNPN信息，选择SNPN。
可选地，第二指示信息中包括：显式指示终端的接入层实体获取组标识列表；和/或，指示第二SNPN类型，第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
可选地，第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
可选地，终端的接入层实体根据第二指示信息，搜索可用SNPN，包括：终端的接入层实体搜索可用SNPN，并根据第二指示信息，接收包含组标识列表的系统信息块并读取系统信息块中的组标识列表。
需要说明的是，本公开实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行上述各实施例提供的SNPN选择方法，包括：终端的非接入层实体向终端的接入层实体发送第一指示信息，第一指示信息用于指示终端的接入层实体不需要获取组标识列表；组标识列表为SNPN支持的外部网络的标识集合；终端的接入层实体根据第一指示信息，搜索可用SNPN，获取并向终端的非接入层实 体发送第一SNPN信息，第一SNPN信息中包含一个或多个可用SNPN标识；终端的非接入层实体基于第一SNPN信息，选择SNPN。
所述计算机可读存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例提供的技术方案可以适用于多种系统，尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)通用分组无线业务(general packet radio service，GPRS)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、高级长期演进(long term evolution advanced，LTE-A)系统、通用移动系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分，例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的终端，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端的名称可能也不相同，例如在5G系统中，终端可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数 据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流 程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (25)

  1. 一种独立非公共网络SNPN选择方法，其中，包括：
    终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
    所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
    所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
  2. 根据权利要求1所述的SNPN选择方法，其中，所述终端的非接入层实体向所述终端的接入层实体发送第一指示信息，包括：
    所述终端的非接入层实体若确定本地未配置组标识配置信息，则向所述终端的接入层实体发送第一指示信息；
    其中，所述组标识配置信息用于指示所述终端的非接入层实体基于组标识列表选择SNPN。
  3. 根据权利要求2所述的SNPN选择方法，其中，所述第一指示信息中包括：
    显式指示所述终端的接入层实体不需要获取组标识列表；和/或，
    指示第一SNPN类型，所述第一SNPN类型为普通SNPN。
  4. 根据权利要求1所述的SNPN选择方法，其中，所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，包括：
    所述终端的接入层实体搜索可用SNPN，并根据所述第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据所述第一指示信息，不接收包含组标识列表的系统信息块。
  5. 根据权利要求1所述的SNPN选择方法，其中，所述方法还包括：
    所述终端的非接入层实体确定本地配置有组标识配置信息，向所述终端的接入层实体发送第二指示信息，所述第二指示信息用于指示所述终端的接入层实体获取组标识列表；
    所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第二SNPN信息，所述第二SNPN信息中包含一个或多个可用SNPN标识和每个所述可用SNPN标识对应的组标识列表；
    所述终端的非接入层实体基于所述第二SNPN信息，选择SNPN。
  6. 根据权利要求5所述的SNPN选择方法，其中，所述第二指示信息中包括：
    显式指示所述终端的接入层实体获取组标识列表；和/或，
    指示第二SNPN类型，所述第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
  7. 根据权利要求6所述的SNPN选择方法，其中，所述第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
  8. 根据权利要求5所述的SNPN选择方法，其中，所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，包括：
    所述终端的接入层实体搜索可用SNPN，并根据所述第二指示信息，接收包含组标识列表的系统信息块并读取所述系统信息块中的组标识列表。
  9. 一种终端，其中，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
    所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
    所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
  10. 根据权利要求9所述的终端，其中，所述终端的非接入层实体向所述终端的接入层实体发送第一指示信息，包括：
    所述终端的非接入层实体若确定本地未配置组标识配置信息，则向所述终端的接入层实体发送第一指示信息；
    其中，所述组标识配置信息用于指示所述终端的非接入层实体基于组标识列表选择SNPN。
  11. 根据权利要求10所述的终端，其中，所述第一指示信息中包括：
    显式指示所述终端的接入层实体不需要获取组标识列表；和/或，
    指示第一SNPN类型，所述第一SNPN类型为普通SNPN。
  12. 根据权利要求9所述的终端，其中，所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，包括：
    所述终端的接入层实体搜索可用SNPN，并根据所述第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据所述第一指示信息，不接收包含组标识列表的系统信息块。
  13. 根据权利要求9所述的终端，其中，所述操作还包括：
    所述终端的非接入层实体确定本地配置有组标识配置信息，向所述终端的接入层实体发送第二指示信息，所述第二指示信息用于指示所述终端的接入层实体获取组标识列表；
    所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第二SNPN信息，所述第二SNPN信息中包含一个或多个可用SNPN标识和每个所述可用SNPN标识对应的组标识列表；
    所述终端的非接入层实体基于所述第二SNPN信息，选择SNPN。
  14. 根据权利要求13所述的终端，其中，所述第二指示信息中包括：
    显式指示所述终端的接入层实体获取组标识列表；和/或，
    指示第二SNPN类型，所述第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
  15. 根据权利要求14所述的终端，其中，所述第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
  16. 根据权利要求13所述的终端，其中，所述终端的接入层实体根据所 述第二指示信息，搜索可用SNPN，包括：
    所述终端的接入层实体搜索可用SNPN，并根据所述第二指示信息，接收包含组标识列表的系统信息块并读取所述系统信息块中的组标识列表。
  17. 一种独立非公共网络SNPN选择装置，其中，包括：
    发送单元，用于终端的非接入层实体向所述终端的接入层实体发送第一指示信息，所述第一指示信息用于指示所述终端的接入层实体不需要获取组标识列表；所述组标识列表为SNPN支持的外部网络的标识集合；
    获取单元，用于所述终端的接入层实体根据所述第一指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第一SNPN信息，所述第一SNPN信息中包含一个或多个可用SNPN标识；
    选择单元，用于所述终端的非接入层实体基于所述第一SNPN信息，选择SNPN。
  18. 根据权利要求17所述的SNPN选择装置，其中，所述发送单元具体用于：
    所述终端的非接入层实体若确定本地未配置组标识配置信息，则向所述终端的接入层实体发送第一指示信息；
    其中，所述组标识配置信息用于指示所述终端的非接入层实体基于组标识列表选择SNPN。
  19. 根据权利要求18所述的SNPN选择装置，其中，所述第一指示信息中包括：
    显式指示所述终端的接入层实体不需要获取组标识列表；和/或，
    指示第一SNPN类型，所述第一SNPN类型为普通SNPN。
  20. 根据权利要求17所述的SNPN选择装置，其中，所述获取单元具体用于：
    所述终端的接入层实体搜索可用SNPN，并根据所述第一指示信息，接收系统信息块但不执行读取组标识列表的操作；或者，根据所述第一指示信息，不接收包含组标识列表的系统信息块。
  21. 根据权利要求17所述的SNPN选择装置，其中，所述发送单元还用 于：所述终端的非接入层实体确定本地配置有组标识配置信息，向所述终端的接入层实体发送第二指示信息，所述第二指示信息用于指示所述终端的接入层实体获取组标识列表；
    所述获取单元还用于：所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，获取并向所述终端的非接入层实体发送第二SNPN信息，所述第二SNPN信息中包含一个或多个可用SNPN标识和每个所述可用SNPN标识对应的组标识列表；
    所述选择单元还用于：所述终端的非接入层实体基于所述第二SNPN信息，选择SNPN。
  22. 根据权利要求21所述的SNPN选择装置，其中，所述第二指示信息中包括：
    显式指示所述终端的接入层实体获取组标识列表；和/或，
    指示第二SNPN类型，所述第二SNPN类型为除第一SNPN类型以外的其他SNPN类型。
  23. 根据权利要求22所述的SNPN选择装置，其中，所述第二SNPN类型为支持外部鉴权的SNPN类型，或者支持远程配置的SNPN类型。
  24. 根据权利要求21所述的SNPN选择装置，其中，所述终端的接入层实体根据所述第二指示信息，搜索可用SNPN，包括：
    所述终端的接入层实体搜索可用SNPN，并根据所述第二指示信息，接收包含组标识列表的系统信息块并读取所述系统信息块中的组标识列表。
  25. 一种计算机可读存储介质，其中，所述计算机可读存储介质存储有计算机程序，所述计算机程序用于使计算机执行权利要求1至8任一项所述的方法。
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Citations (3)

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Publication number Priority date Publication date Assignee Title
WO2020220997A1 (zh) * 2019-04-28 2020-11-05 华为技术有限公司 通信方法、装置及系统
WO2021092810A1 (en) * 2019-11-13 2021-05-20 Zte Corporation A wireless communication method for mobility handling
WO2021141707A1 (en) * 2020-01-07 2021-07-15 Qualcomm Incorporated Discovery and selection of a standalone non-public network (snpn) based at least in part on an snpn roaming group

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020220997A1 (zh) * 2019-04-28 2020-11-05 华为技术有限公司 通信方法、装置及系统
WO2021092810A1 (en) * 2019-11-13 2021-05-20 Zte Corporation A wireless communication method for mobility handling
WO2021141707A1 (en) * 2020-01-07 2021-07-15 Qualcomm Incorporated Discovery and selection of a standalone non-public network (snpn) based at least in part on an snpn roaming group

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