CN116801373A - Method for selecting trusted non-3GPP network, user terminal and communication system - Google Patents
Method for selecting trusted non-3GPP network, user terminal and communication system Download PDFInfo
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Abstract
The present disclosure provides a method, user terminal and communication system for selecting a trusted non-3GPP network. The method for selecting the trusted non-3GPP network comprises the following steps: selecting TNAP supporting slice from pre-configured ANDSP according to slice required by current service under the condition of selecting to access to trusted non-3GPP network; a registration request is sent to the core network device via the TNAP and TNGF entities to access the slice after registration is successful. The method and the device enable the UE to select the corresponding TNAP according to the slice required by the current service, so that flexibility of network resource deployment is improved.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a method, user terminal and communication system for selecting a trusted non-3GPP (3 rd Generation Partnership Project, third generation partnership project) network.
Background
Currently, a 5G UE (User Equipment) of the 3GPP accesses a Trusted Non-3GPP network (un-supported Non-3 GPP) and can only connect to a TNAP (Trusted Non-3GPP Access Point) and a TNGF (Trusted Non-3GPP Gateway Function) entity that are preconfigured on the network side. The network side may set the corresponding TNAP and TNGF according to the slice subscribed by the UE.
Disclosure of Invention
The inventors noted that in the related art, when one TNAP and TNGF cannot support all slices of the UE, it is impossible to select corresponding TNAP and TNGF entities based on slices of the current traffic of the UE.
Accordingly, the present disclosure provides a scheme for selecting a trusted non-3GPP network, which enables a UE to select corresponding TNAP and TNGF according to a slice required by a current service, thereby improving flexibility of network resource deployment.
According to a first aspect of embodiments of the present disclosure, there is provided a method of selecting a trusted non-3GPP network, performed by a user terminal, comprising: under the condition of selecting to access to a trusted non-3GPP network, selecting a trusted non-3GPP network access point TNAP supporting the slice from a preconfigured access network discovery and selection strategy ANDSP according to the slice required by the current service; and sending a registration request to core network equipment through the TNAP and an authorized non-3GPP gateway function TNGF entity so as to access the slice after registration is successful.
In some embodiments, in the case of selecting to access to a trusted non-3GPP network, selecting a TNAP supporting a slice from a preconfigured ANDSP according to the slice required for the current service includes: in case it is determined that the HPLMN has selected to access to the trusted non-3GPP network at the home public land mobile network, selecting a first TNAP of the trusted non-3GPP network supporting the HPLMN slice from the ANDSP according to the HPLMN slice required for the current service.
In some embodiments, the sending a registration request to a core network device through the TNAP and TNGF entity comprises: and sending a registration request to core network equipment through the first TNAP and TNGF entity so as to access the HPLMN slice after registration is successful.
In some embodiments, in the case of selecting to access to a trusted non-3GPP network, selecting a TNAP supporting a slice from a preconfigured ANDSP according to the slice required for the current service includes: under the condition that the VPLMN accessing the public land mobile network is determined to select to access to a trusted non-3GPP network, inquiring a VPLMN slice with a mapping relation with an HPLMN slice required by the current service; and selecting a second TNAP of the non-3GPP network supporting the trust of the VPLMN slice from the ANDSP.
In some embodiments, the sending a registration request to a core network device through the TNAP and TNGF entity comprises: and sending a registration request to core network equipment by using the second TNAP and TNGF entity so as to access the VPLMN slice after registration is successful.
In some embodiments, during access to an HPLMN core network, first ANDSP information sent by an HPLMN device is received, where the first ANDSP information includes a first TNAP identification of a trusted non-3GPP network within the HPLMN and HPLMN slice information supported by the first TNAP.
In some embodiments, during the process of accessing the HPLMN core network, second ANDSP information sent by the HPLMN device is received, where the second ANDSP information includes second TNAPs of trusted non-3GPP networks in each of a plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and the VPLMN slices can be mapped onto HPLMN slices subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
In some embodiments, in the process of accessing to a VPLMN core network, third ANDSP information sent by a VPLMN device is received, where the third ANDSP information includes third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped onto an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
In some embodiments, the HPLMN device is a policy control function, PCF, entity in the HPLMN; the VPLMN equipment is a PCF entity in the VPLMN; the core network device is an access and mobility management function AMF entity.
According to a second aspect of embodiments of the present disclosure, there is provided a user terminal comprising: the first processing module is configured to select a trusted non-3GPP network access point TNAP supporting the slice from a pre-configured access network discovery and selection policy ANDSP according to the slice required by the current service under the condition of selecting to access the trusted non-3GPP network; a second processing module configured to send a registration request to a core network device through the TNAP and an authorized non-3GPP gateway function, TNGF, entity to access the slice after registration is successful.
In some embodiments, the first processing module is configured to select a first TNAP of the non-3GPP network supporting the trust of the HPLMN slice from the ANDSP according to the HPLMN slice required for the current service, if it is determined that the HPLMN has selected access to the trusted non-3GPP network at the home public land mobile network.
In some embodiments, the second processing module is configured to send a registration request to a core network device through the first TNAP and TNGF entity to access the HPLMN slice after registration is successful.
In some embodiments, the first processing module is configured to query a VPLMN slice having a mapping relation with an HPLMN slice required for a current service in case it is determined that a visited public land mobile network VPLMN selects to access a trusted non-3GPP network, select a second TNAP of the non-3GPP network supporting the trust of the VPLMN slice from an ANDSP.
In some embodiments, the second processing module is configured to send a registration request to a core network device using the second TNAP and TNGF entity to access the VPLMN slice after registration is successful.
In some embodiments, the first processing module is configured to receive first ANDSP information sent by an HPLMN device during access to an HPLMN core network, where the first ANDSP information includes a first TNAP identification of a trusted non-3GPP network within the HPLMN and HPLMN slice information supported by the first TNAP.
In some embodiments, the first processing module is configured to receive second ANDSP information sent by the HPLMN device during access to an HPLMN core network, where the second ANDSP information includes second TNAPs of trusted non-3GPP networks in each of a plurality of VPLMNs and VPLMN slice information supported by the second TNAP, where the VPLMN slices can be mapped onto HPLMN slices subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
In some embodiments, the first processing module is configured to receive third ANDSP information sent by a VPLMN device during access to a VPLMN core network, where the third ANDSP information includes third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped onto an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
In some embodiments, the HPLMN device is a PCF entity in the HPLMN; the VPLMN equipment is a PCF entity in the VPLMN; the core network device is an AMF entity.
According to a third aspect of embodiments of the present disclosure, there is provided a user terminal comprising: a memory configured to store instructions; a processor coupled to the memory, the processor configured to perform a method according to any of the embodiments described above based on instructions stored in the memory.
According to a fourth aspect of embodiments of the present disclosure, there is provided a communication system comprising: a user terminal as in any above embodiments; the TNAP is configured to send the registration request to a TNGP entity after receiving the registration request sent by the user terminal; a TNGP entity configured to send a registration request sent by the TNAP to a core network device; and the core network equipment is configured to perform registration processing according to the registration request so that the user terminal accesses the slice required by the current service after registration is successful.
In some embodiments, the above system further comprises: and the HPLMN equipment is configured to select an HPLMN slice supported by a first TNAP of a trusted non-3GPP network in the HPLMN from HPLMN slices subscribed by the user terminal in the process of accessing the HPLMN core network by the user terminal, and send first ANDSP information to the user terminal, wherein the first ANDSP information comprises the first TNAP and the HPLMN slice information supported by the first TNAP.
In some embodiments, the HPLMN device is further configured to send second ANDSP information to the user terminal during access of the user terminal to the HPLMN core network, where the second ANDSP information includes second TNAPs of trusted non-3GPP networks in each of a plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and the VPLMN slices are capable of being mapped onto HPLMN slices subscribed to by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
In some embodiments, the HPLMN device is further configured to obtain a second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP according to a roaming protocol between itself and the plurality of VPLMNs.
In some embodiments, the above system further comprises: and the VPLMN equipment is configured to send third ANDSP information to the user terminal in the process of accessing the user terminal to a VPLMN core network, wherein the third ANDSP information comprises third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
In some embodiments, the HPLMN device is a PCF entity in the HPLMN; the VPLMN equipment is a PCF entity in the VPLMN; the core network device is an AMF entity.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium, wherein the computer readable storage medium stores computer instructions which, when executed by a processor, implement a method as in any of the embodiments described above.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a flow chart of a method of selecting a trusted non-3GPP network according to one embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a user terminal according to another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure;
fig. 6 is a flow chart illustrating a method of selecting a trusted non-3GPP network according to another embodiment of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a flow chart illustrating a method of selecting a trusted non-3GPP network according to an embodiment of the present disclosure. In some embodiments, the following method of selecting a trusted non-3GPP network is performed by a user terminal.
In step 101, in case of selecting access to a trusted non-3GPP network, a TNAP supporting the slice is selected from a preconfigured ANDSP (Access Network Discovery and Selection Policy ) according to the slice required for the current service.
In step 102, a registration request is sent to the core network device through the TNAP and the TNGF entity to access the slice after registration is successful.
In some embodiments, the core network device is an AMF (Access and Mobility Management Function ) entity.
In the method for selecting the trusted non-3GPP network provided in the foregoing embodiment of the present disclosure, the user terminal selects the corresponding TNAP according to the slice required by the current service, thereby improving flexibility of network resource deployment.
For example, in case it is determined that access to a trusted non-3GPP network is selected at an HPLMN (Home Public Land Mobile Network ), a first TNAP of the trusted non-3GPP network supporting HPLMN slicing is selected from an ANDSP according to HPLMN slicing (HPLMN S-NSSAIs) required for current traffic.
Next, a registration request is sent to the core network device via the first TNAP and the corresponding TNGF entity to access the HPLMN slice after registration is successful.
For another example, in case it is determined that access to a trusted non-3GPP network is selected at a VPLMN (Visited Public Land Mobile Network ), a VPLMN slice (VPLMN S-NSSAIs) having a mapping relation with an HPLMN slice (HPLMN S-NSSAIs) required for the current service is queried. A second TNAP of the non-3GPP network supporting trust of VPLMN slices is selected from the ands.
Next, a registration request is sent to the core network device using the second TNAP and the corresponding TNGF entity to access the VPLMN slice after registration is successful.
It should be noted that, the user terminal may access the HPLMN core network or the VPLMN core network at any time through a 3GPP access mode or a non-3GPP access mode.
In some embodiments, during the process of accessing the HPLMN core network, the user terminal receives first ANDSP information sent by the HPLMN device, where the first ANDSP information includes a first TNAP identifier of a trusted non-3GPP network in the HPLMN and HPLMN slice information supported by the first TNAP.
In addition, in the process of accessing the HPLMN core network, the user terminal also receives second ANDSP information sent by the HPLMN device, wherein the second ANDSP information comprises second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and according to a roaming protocol between each VPLMN and the HPLMN, the VPLMN slice can be mapped to the HPLMN slice subscribed by the user terminal.
It should be noted that, in the process that the user terminal accesses the HPLMN core network, the HPLMN device may send the first and second ANDSP information to the user terminal, or may send the first and second ANDSP information to the user terminal together.
In some embodiments, the HPLMN device is a PCF (Policy Control Function ) entity in the HPLMN.
In other embodiments, during the process of accessing the VPLMN core network, the ue receives third ANDSP information sent by the VPLMN device, where the third ANDSP information includes third TNAP of the trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the ue according to a roaming protocol between the VPLMN and the HPLMN.
In some embodiments, the VPLMN device is a PCF entity in the VPLMN.
In some embodiments, extensions may be made after SSID (Service Set Identifier, service set identification) information of WLANSP (WLAN Selection Policy, wireless local area network selection policy) of the ANDSP to add supported slice (S-nsais) information.
Fig. 2 is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure. As shown in fig. 2, the user terminal comprises a first processing module 21 and a second processing module 22.
The first processing module 21 is configured to select a trusted non-3GPP network access point TNAP supporting slice trusted from a preconfigured ANDSP according to the slice required for the current service in case of selecting access to the trusted non-3GPP network.
The second processing module 22 is configured to send a registration request to the core network device via the TNAP and the authorized non-3GPP gateway function TNGF entity in order to access the slice after registration is successful.
In some embodiments, the core network device is an AMF entity.
In some embodiments, the first processing module 21 selects a first TNAP of the trusted non-3GPP network supporting HPLMN slicing from the ANDSP according to the HPLMN slicing required for the current service in case it is determined that the HPLMN chooses to access the trusted non-3GPP network.
The second processing module 22 sends a registration request to the core network device via the first TNAP and the corresponding TNGF entity to access the HPLMN slice after registration is successful.
In other embodiments, the first processing module 22 queries a VPLMN slice having a mapping relation with an HPLMN slice required for the current service in case it is determined that the VPLMN chooses to access the trusted non-3GPP network, and selects a second TNAP of the non-3GPP network supporting the trust of the VPLMN slice from the ANDSP.
The second processing module 22 sends a registration request to the core network device using the second TNAP and the corresponding TNGF entity to access the VPLMN slice after registration is successful.
In some embodiments, the first processing module 21 receives, during access to the HPLMN core network, first ANDSP information sent by the HPLMN device, where the first ANDSP information includes a first TNAP identifier of a trusted non-3GPP network within the HPLMN and HPLMN slice information supported by the first TNAP.
For example, the HPLMN device is a PCF entity in the HPLMN.
In addition, the first processing module 21 receives second ANDSP information sent by the HPLMN device during the process of accessing the HPLMN core network, where the second ANDSP information includes second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP. The VPLMN slices can be mapped onto the HPLMN slices subscribed to by the user terminal according to a roaming agreement between each VPLMN and the HPLMN.
In other embodiments, the first processing module 21 receives, during the access to the VPLMN core network, third ANDSP information sent by the VPLMN device, where the third ANDSP information includes third TNAP of the trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
For example, the VPLMN device is a PCF entity in the VPLMN.
Fig. 3 is a schematic structural diagram of a user terminal according to another embodiment of the present disclosure. As shown in fig. 3, the user terminal includes a memory 31 and a processor 32.
The memory 31 is for storing instructions and the processor 32 is coupled to the memory 31, the processor 32 being configured to perform a method as referred to in any of the embodiments of fig. 1 based on the instructions stored by the memory.
As shown in fig. 3, the user terminal further comprises a communication interface 33 for information interaction with other devices. Meanwhile, the user terminal further comprises a bus 34, and the processor 32, the communication interface 33 and the memory 31 perform communication with each other through the bus 34.
The memory 31 may comprise a high-speed RAM memory or may further comprise a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 31 may also be a memory array. The memory 31 may also be partitioned and the blocks may be combined into virtual volumes according to certain rules.
Further, the processor 32 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
The present disclosure also relates to a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement a method as referred to in any of the embodiments of fig. 1.
Fig. 4 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure. As shown in fig. 4, the communication system comprises a user terminal 41, a TNAP 42, a TNGP entity 43 and a core network device 44. The user terminal 41 is a user terminal according to any one of the embodiments of fig. 2 or fig. 3.
The TNAP 42 is configured to send a registration request to the corresponding TNGP entity 43 upon receipt of the registration request sent by the user terminal 41.
The TNGP entity 43 is configured to send registration requests sent by the TNAP 42 to the core network device 44.
The core network device 44 is configured to perform a registration process according to the registration request so that the user terminal 41 accesses a slice required for the current service after registration is successful.
In some embodiments, the core network device is an AMF entity.
Fig. 5 is a schematic structural diagram of a communication system according to another embodiment of the present disclosure. Fig. 5 differs from fig. 4 in that in the embodiment shown in fig. 5 the communication system further comprises an HPLMN device 45.
The HPLMN device 45 is configured to select, during the process of accessing the HPLMN core network by the user terminal 41, an HPLMN slice supported by a first TNAP of the trusted non-3GPP network in the HPLMN from HPLMN slices subscribed by the user terminal 41, and send first ANDSP information to the user terminal 41, where the first ANDSP information includes the first TNAP and HPLMN slice information supported by the first TNAP.
In addition, the HPLMN device 45 is further configured to send second ANDSP information to the user terminal 41 during the process of accessing the HPLMN core network by the user terminal 41, where the second ANDSP information includes second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and the VPLMN slices can be mapped onto HPLMN slices subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
For example, HPLMN device 45 obtains the second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and the VPLMN slice information supported by the second TNAP in accordance with a roaming protocol between itself and the plurality of VPLMNs.
It should be noted that, the HPLMN device 45 may send the first and second ANDSP information to the user terminal, respectively, or may send the first and second ANDSP information together to the user terminal.
In some embodiments, the HPLMN device is a PCF entity in the HPLMN.
In other embodiments, as shown in fig. 5, the communication system further includes a VPLMN device 46.
As shown in fig. 5, when the ue 41 is in the roaming scenario, the VPLMN device 46 is configured to send third ANDSP information to the ue 41 during the access of the ue 41 to the VPLMN core network, where the third ANDSP information includes third TNAP of the trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped onto the HPLMN slice subscribed by the ue according to the roaming protocol between the VPLMN and the HPLMN.
In some embodiments, the VPLMN device is a PCF entity in the VPLMN.
Fig. 6 is a flow chart illustrating a method of selecting a trusted non-3GPP network according to another embodiment of the present disclosure.
In step 601a, the HPLMN device configures a first TNAP of a trusted non-3GPP network within the HPLMN and HPLMN slice information supported thereby, and a second TNAP entity of the trusted non-3GPP network within the VPLMN and VPLMN slice information supported thereby.
For example, the HPLMN appliance obtains the second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and the VPLMN slice information supported by the second TNAP in accordance with a roaming protocol between itself and the plurality of VPLMNs.
For example, the HPLMN device is a PCF entity in the HPLMN.
In step 602a, during the process that the user terminal accesses the HPLMN core network, the HPLMN device selects an HPLMN slice supported by a first TNAP of a trusted non-3GPP network in the HPLMN from HPLMN slices subscribed by the user terminal, and sends first ANDSP information to the user terminal, where the first ANDSP information includes the first TNAP and HPLMN slice information supported by the first TNAP.
In addition, the HPLMN device further sends second ANDSP information to the user terminal during the process of accessing the user terminal to the HPLMN core network, where the second ANDSP information includes second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and the VPLMN slice can be mapped onto an HPLMN slice subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
It should be noted that, the HPLMN device may also send the first ANDSP information and the second ANDSP information to the user terminal together.
In step 601b, the VPLMN device configures a third TNAP of the trusted non-3GPP network within the VPLMN and its supported VPLMN slice information.
For example, the VPLMN device is a PCF entity in the VPLMN.
In step 602b, the VPLMN device sends third ANDSP information to the user terminal in the process that the user terminal accesses the VPLMN core network, where the third ANDSP information includes third TNAP of the trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and according to the roaming protocol between the VPLMN and the HPLMN, the VPLMN slice can be mapped onto the HPLMN slice subscribed by the user terminal.
In step 603a, if the ue determines to select to access to the trusted non-3GPP network in the HPLMN, the ue selects the first TNAP of the trusted non-3GPP network supporting the HPLMN slice from the ands according to the HPLMN slice required by the current service.
In step 604a, the user terminal sends a registration request to the core network device through the first TNAP and the corresponding TNGF entity to access the HPLMN slice after registration is successful.
In step 603b, if the ue determines to select to access to the trusted non-3GPP network in the VPLMN, the ue queries the VPLMN slice having a mapping relationship with the HPLMN slice required for the current service. A second TNAP of the non-3GPP network supporting trust of VPLMN slices is selected from the ands.
In step 604b, the user terminal sends a registration request to the core network device through the second TNAP and the corresponding TNGF entity to access the VPLMN slice after registration is successful.
By implementing the above embodiments of the present disclosure, the user terminal can accurately select the TNAP associated with the currently required slice according to the TNAP in the ANDSP and the slice supported by the TNAP, thereby accessing the correct trusted non-3GPP network.
In some embodiments, the functional units described above may be implemented as general-purpose processors, programmable logic controllers (Programmable Logic Controller, abbreviated as PLCs), digital signal processors (Digital Signal Processor, abbreviated as DSPs), application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASICs), field programmable gate arrays (Field-Programmable Gate Array, abbreviated as FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described in the present disclosure.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (26)
1. A method of selecting a trusted non-3GPP network, performed by a user terminal, comprising:
under the condition of selecting to access to a trusted non-3GPP network, selecting a trusted non-3GPP network access point TNAP supporting the slice from a preconfigured access network discovery and selection strategy ANDSP according to the slice required by the current service;
and sending a registration request to core network equipment through the TNAP and an authorized non-3GPP gateway function TNGF entity so as to access the slice after registration is successful.
2. The method of claim 1, wherein the selecting the TNAP supporting the slice from the preconfigured ANDSP according to the slice required for the current service in the case of selecting access to the trusted non-3GPP network comprises:
in case it is determined that the HPLMN has selected to access to the trusted non-3GPP network at the home public land mobile network, selecting a first TNAP of the trusted non-3GPP network supporting the HPLMN slice from the ANDSP according to the HPLMN slice required for the current service.
3. The method of claim 2, wherein the sending, by the TNAP and TNGF entity, a registration request to a core network device comprises:
and sending a registration request to core network equipment through the first TNAP and TNGF entity so as to access the HPLMN slice after registration is successful.
4. The method of claim 3, wherein the selecting the TNAP supporting the slice from the preconfigured ANDSP according to the slice required for the current service in the case of selecting access to the trusted non-3GPP network comprises:
under the condition that the VPLMN accessing the public land mobile network is determined to select to access to a trusted non-3GPP network, inquiring a VPLMN slice with a mapping relation with an HPLMN slice required by the current service;
and selecting a second TNAP of the non-3GPP network supporting the trust of the VPLMN slice from the ANDSP.
5. The method of claim 4, wherein the sending, by the TNAP and TNGF entity, a registration request to a core network device comprises:
and sending a registration request to core network equipment by using the second TNAP and TNGF entity so as to access the VPLMN slice after registration is successful.
6. The method of any of claims 1-5, further comprising:
and in the process of accessing the HPLMN core network, receiving first ANDSP information sent by HPLMN equipment, wherein the first ANDSP information comprises a first TNAP identification of a trusted non-3GPP network in the HPLMN and HPLMN slice information supported by the first TNAP.
7. The method of claim 6, further comprising:
and in the process of accessing an HPLMN core network, receiving second ANDSP information sent by the HPLMN equipment, wherein the second ANDSP information comprises second TNAP of a trusted non-3GPP network in each VPLMN and VPLMN slice information supported by the second TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
8. The method of claim 6, wherein,
and receiving third ANDSP information sent by VPLMN equipment in the process of accessing a VPLMN core network, wherein the third ANDSP information comprises third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
9. The method of claim 8, wherein,
the HPLMN equipment is a policy control function PCF entity in the HPLMN;
the VPLMN equipment is a PCF entity in the VPLMN;
the core network device is an access and mobility management function AMF entity.
10. A user terminal, comprising:
the first processing module is configured to select a trusted non-3GPP network access point TNAP supporting the slice from a pre-configured access network discovery and selection policy ANDSP according to the slice required by the current service under the condition of selecting to access the trusted non-3GPP network;
a second processing module configured to send a registration request to a core network device through the TNAP and an authorized non-3GPP gateway function, TNGF, entity to access the slice after registration is successful.
11. The user terminal of claim 10, wherein,
the first processing module is configured to select a first TNAP of a trusted non-3GPP network supporting a HPLMN slice from the ANDSP according to a HPLMN slice required for current traffic if it is determined that the HPLMN has selected access to the trusted non-3GPP network at the home public land mobile network.
12. The user terminal of claim 11, wherein,
the second processing module is configured to send a registration request to a core network device through the first TNAP and TNGF entity to access the HPLMN slice after registration is successful.
13. The user terminal of claim 12, wherein,
the first processing module is configured to query a VPLMN slice having a mapping relation with an HPLMN slice required for a current service in case that it is determined that a public land mobile network VPLMN is selected to access a trusted non-3GPP network, and select a second TNAP of the non-3GPP network supporting the trust of the VPLMN slice from an ANDSP.
14. The user terminal of claim 13, wherein,
the second processing module is configured to send a registration request to a core network device using the second TNAP and TNGF entity to access the VPLMN slice after registration is successful.
15. The user terminal according to any of claims 10-14, wherein,
the first processing module is configured to receive first ANDSP information sent by an HPLMN device in the process of accessing an HPLMN core network, wherein the first ANDSP information comprises a first TNAP identification of a trusted non-3GPP network in the HPLMN and HPLMN slice information supported by the first TNAP.
16. The user terminal of claim 15, wherein,
the first processing module is configured to receive second ANDSP information sent by the HPLMN device in a process of accessing an HPLMN core network, where the second ANDSP information includes second TNAPs of trusted non-3GPP networks in each VPLMN of a plurality of VPLMNs and VPLMN slice information supported by the second TNAPs, and the VPLMN slices can be mapped onto HPLMN slices subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
17. The user terminal of claim 15, wherein,
the first processing module is configured to receive third ANDSP information sent by a VPLMN device in a process of accessing a VPLMN core network, where the third ANDSP information includes third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped onto an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
18. The user terminal of claim 17, wherein,
the HPLMN equipment is a PCF entity in the HPLMN;
the VPLMN equipment is a PCF entity in the VPLMN;
the core network device is an AMF entity.
19. A user terminal, comprising:
a memory configured to store instructions;
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-9 based on instructions stored by the memory.
20. A communication system, comprising:
the user terminal according to any of claims 10-19;
the TNAP is configured to send the registration request to a TNGP entity after receiving the registration request sent by the user terminal;
a TNGP entity configured to send a registration request sent by the TNAP to a core network device;
and the core network equipment is configured to perform registration processing according to the registration request so that the user terminal accesses the slice required by the current service after registration is successful.
21. The system of claim 20, wherein the system further comprises:
and the HPLMN equipment is configured to select an HPLMN slice supported by a first TNAP of a trusted non-3GPP network in the HPLMN from HPLMN slices subscribed by the user terminal in the process of accessing the HPLMN core network by the user terminal, and send first ANDSP information to the user terminal, wherein the first ANDSP information comprises the first TNAP and the HPLMN slice information supported by the first TNAP.
22. The system of claim 21, wherein,
the HPLMN device is further configured to send second ANDSP information to the user terminal during the process of accessing the HPLMN core network by the user terminal, where the second ANDSP information includes second TNAPs of trusted non-3GPP networks in each of a plurality of VPLMNs and VPLMN slice information supported by the second TNAP, and the VPLMN slices can be mapped onto HPLMN slices subscribed by the user terminal according to a roaming protocol between each VPLMN and the HPLMN.
23. The system of claim 22, wherein,
the HPLMN device is further configured to obtain a second TNAP of the trusted non-3GPP network in each of the plurality of VPLMNs and VPLMN slice information supported by the second TNAP according to a roaming protocol between itself and the plurality of VPLMNs.
24. The system of claim 20, wherein the system further comprises:
and the VPLMN equipment is configured to send third ANDSP information to the user terminal in the process of accessing the user terminal to a VPLMN core network, wherein the third ANDSP information comprises third TNAP of a trusted non-3GPP network in the VPLMN and VPLMN slice information supported by the third TNAP, and the VPLMN slice can be mapped to an HPLMN slice subscribed by the user terminal according to a roaming protocol between the VPLMN and the HPLMN.
25. The system of claim 24, wherein,
the HPLMN equipment is a PCF entity in the HPLMN;
the VPLMN equipment is a PCF entity in the VPLMN;
the core network device is an AMF entity.
26. A non-transitory computer readable storage medium storing computer instructions which, when executed by a processor, implement the method of any one of claims 1-9.
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