CN113115434B

CN113115434B - Network registration method, network equipment and terminal equipment

Info

Publication number: CN113115434B
Application number: CN202010028341.5A
Authority: CN
Inventors: 韩鲁峰
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2023-01-03
Anticipated expiration: 2040-01-10
Also published as: CN113115434A

Abstract

The invention discloses a network registration method, network equipment and terminal equipment, wherein the network registration method comprises the following steps: receiving a registration request message sent by terminal equipment; determining whether a first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal equipment is carried in a registration result message, wherein the registration result message corresponds to a registration request message; and sending a registration result message to the terminal equipment according to the determination result. In the embodiment of the invention, the default configuration NSSAI corresponding to the terminal equipment can be sent to the terminal equipment in time through the registration result message without sending the default configuration NSSAI to the terminal equipment through specially sending a DL NAS TRANSPORT signaling, so that network signaling is saved; meanwhile, the terminal equipment can have available default configuration NSSAI when the network registration needs to be initiated again, and the network efficiency is ensured.

Description

Network registration method, network equipment and terminal equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a network registration method, an equipment network, and a terminal device.

Background

With the development of communication technology, research on the fifth Generation mobile communication technology (5g, 5th Generation) has also been developed. The concept of Network Slice (Network Slice) is introduced into the 5G Network, and the Network Slice technology provides mutually isolated Network environments for different application scenes in a mode of virtualizing an independent logic Network on the same Network infrastructure, so that the Network functions and characteristics of the different application scenes can be customized according to respective requirements, and the requirements of different services are guaranteed.

Specifically, in the 5G Network, network resources (such as Network elements, network logic functions, etc.) are divided into a plurality of combinations, and a Network element in one combination is limited in the same Public Land Mobile Network (PLMN) and includes at least two parts, namely an access Network and a core Network, and each such combination is called a Network slice. Further, in order to distinguish the Network slices, an Identity (ID) is set for each Network Slice, which is called as Single Network Slice Selection Assistance Information (S-nsai), and a combination of a group of S-nsais is called as Network Slice Selection Assistance Information (NSSAI).

A User Equipment (UE, also referred to as a terminal device) may access one or more network slices. When a network slice is deployed in a network and a UE needs to Access to a slice, the UE may provide a requested NSSAI to the network, so that the network selects an appropriate Access and Mobility Management Function (AMF) entity for the UE to connect to an appropriate network slice.

In the registration process after the UE initiates registration in the cell where the UE resides, the AMF entity discovers that Default configuration network slice selection auxiliary information (Default Configured NSSAI) of the UE is updated, and if the registration is successful, an additional Downlink non-access stratum (Downlink NAS TRANSPORT) signaling needs to be sent to the UE, where the DL NAS TRANSPORT signaling carries updated related parameters, thereby causing signaling resource waste; if the registration fails and if there is no other S-NSSAI to request again for a while, then there will be no Default Configured NSSAI when the UE initiates registration again, which will affect the efficiency of the access network.

Disclosure of Invention

The embodiment of the invention solves the problem of signaling resource waste in the network registration process.

In a first aspect, an embodiment of the present invention provides a method for network registration, which is applied to a network device, and the method includes:

receiving a registration request message sent by terminal equipment; determining whether a registration result message carries first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal device, wherein the registration result message corresponds to the registration request message; and sending the registration result message to the terminal equipment according to the determination result.

In a second aspect, an embodiment of the present invention provides a network device, including:

the receiving module is used for receiving a registration request message sent by the terminal equipment; a determining module, configured to determine whether a registration result message carries first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal device, where the registration result message corresponds to the registration request message; and the sending module is used for sending the registration result message to the terminal equipment according to the determination result.

In a third aspect, an embodiment of the present invention provides a network device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the first aspect.

In a fourth aspect, the present invention provides a computer readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method according to the first aspect.

In a fifth aspect, an embodiment of the present invention provides a network registration method, which is applied to a terminal device, and the method includes:

sending a registration request message to the network equipment; receiving a registration result message corresponding to the registration request message sent by the network equipment; detecting whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI; and determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result.

In a sixth aspect, an embodiment of the present invention provides a terminal device, including:

a sending module, configured to send a registration request message to a network device; a receiving module, configured to receive a registration result message corresponding to the registration request message sent by the network device; a detection module, configured to detect whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI; and the determining module is used for determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result.

In a seventh aspect, an embodiment of the present invention provides a terminal device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method according to the fifth aspect.

In an eighth aspect, the embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method according to the fifth aspect are implemented.

In the embodiment of the present invention, in the network registration process, when a registration result message corresponding to a registration request message of a terminal device is generated, it may be determined whether a first default configuration network slice selection assistance message NSSAI corresponding to the terminal device may be carried in the registration result message, so as to feed back the registration result message to the terminal device according to a specific determination result. Therefore, in some scenes, the default configuration NSSAI corresponding to the terminal equipment can be sent to the terminal equipment in time through the registration result message without sending the default configuration NSSAI to the terminal equipment through specially sending a DL NAS TRANSPORT signaling, so that network signaling resources are saved; meanwhile, the terminal equipment can have available default configuration NSSAI when the network registration needs to be initiated again, and the network efficiency is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a flowchart illustrating a first method for network registration according to an embodiment of the present invention;

fig. 2 is a schematic flowchart of a network registration process in an embodiment of the present invention;

fig. 3 is another specific flowchart of the network registration process in the embodiment of the present invention;

fig. 4 is a flowchart illustrating a second method for network registration according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a network device in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a terminal device in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second network device in the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second terminal device in the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the technical solution of the embodiment of the present invention, the UE may communicate with one or more core networks through a Radio Access Network (RAN), and the UE may include a mobile phone (or called "cellular" phone) and a computer having a terminal device, for example, a portable, pocket, handheld, computer-embedded or vehicle-mounted mobile device, which exchange languages and/or data with the RAN. The network device, which may also be referred to as a base station, may be a 5G base station (gNB).

The NSSAI types in the network according to the embodiment of the present invention may include the following:

(1) Allowing network slice selection assistance information (AllowedNSAI)

After the UE successfully registers in the registration area of the current PLMN, the current PLMN may indicate, through allowednsai, a slice that may be used by the service of the UE, for example, a slice that may be used by the UE to establish a Protocol Data Unit (PDU) Session (Session) through the allowednsai.

(2) Configuring network slice selection assistance information (ConfiguredNSAI)

The ConfiguredNSSAI is provided by the current Serving PLMN (Serving PLMN). In some scenarios, a Virtual Public Land Mobile Network (VPLMN) sends a ConfiguredNSSAI for a UE.

(3) Default configuration network slice selection auxiliary information (Default Configured NSSAI)

The UE is configured by a Unified Data Management (UDM) entity in a Home Public Land Mobile Network (HPLMN). The UE may request registration via the Default Configured NSSAI when the Serving PLMN does not provide Configured dnssai, i.e., the Default Configured NSSAI may be applicable to any PLMN.

(4) Auxiliary information for signing network slice (Subscribed NSSAI)

NSSAI that the UE subscribes to in the HPLMN.

(5) Default network slice selection auxiliary information (Default NSSAI)

A group (one or more) of the plurality of signed S-NSSAIs labeled Default is called Default NSSAI, wherein the signed S-NSSAI labeled Default can also be called Default Subscribed S-NSSAI. In some scenarios, the Default NSSAI may be provided to the UE as AllowedNSSAI.

(6) Requesting network slice selection assistance information (Requested NSSAI)

After camping (Camp) on a certain PLMN, the UE informs the network of NSSAI that it wishes to request service on the PLMN when initiating network registration.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention provides a method for network registration, which is executed by a network device, and is described below by taking the network device as an AMF entity as an example, as shown in fig. 2 and fig. 3, where the method may include the following steps:

step 101: and receiving a registration request message sent by the terminal equipment. Optionally, see step 204 shown in fig. 2 and step 301 shown in fig. 3.

Step 103: and determining whether the first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal equipment is carried in a registration result message, wherein the registration result message corresponds to the registration request message. Optionally, see also step 205 shown in fig. 2 and step 302 shown in fig. 3.

Optionally, in this embodiment of the present invention, the registration result message includes a registration success message or a registration failure message.

In this embodiment of the present invention, the first default configuration NSSAI is a latest default configuration NSSAI corresponding to the terminal device, and the determination of whether the first default configuration NSSAI corresponding to the terminal device is carried in the registration result message may be implemented by different specific embodiments to adapt to different scenarios, including but not limited to the following specific embodiments:

detailed description of the preferred embodiment

In the first embodiment, the step 103 may include the following steps:

detecting whether a registration request message carries a target indication, wherein the target indication is used for requesting the network equipment to carry a first default configuration NSSAI in a registration result message; if yes, determining that the registration result message carries first default configuration NSSAI; if not, determining that the first default configuration NSSAI is not carried in the registration result message.

It can be understood that, by analyzing the registration request message sent by the terminal device, it is determined whether the registration request message sent by the terminal device includes a target indication for requesting the network device to carry the first default configuration NSSAI in the registration result message, and it is determined whether the first default configuration NSSAI needs to be carried in the registration result message. Specifically, if it is detected that the registration request message includes the target indication for requesting the network device to carry the first default configuration NSSAI in the registration result message, the first default configuration NSSAI may be carried in the registration result message and sent to the terminal device, without additionally sending a DL NAS TRANSPORT signaling, thereby avoiding signaling resource waste. If the registration request message is detected not to contain the target indication, the first default configuration NSSAI does not need to be carried in the registration result message.

Detailed description of the preferred embodiment

In the second embodiment, the step 103 may include the following steps:

determining a first parameter related to a second default configuration NSSAI currently stored in the terminal equipment; if the second default configuration NSSAI is determined to be different from the first default configuration NSSAI based on the first parameter, determining that the first default configuration NSSAI is carried in the registration result message; if it is determined based on the first parameter that the second default configuration NSSAI is the same as the first default configuration NSSAI, it is determined that the first default configuration NSSAI is not carried in the registration result message.

It can be understood that, by determining whether the second default configuration NSSAI currently stored in the terminal device is the latest default configuration NSSAI on the network side, that is, the first default configuration NSSAI, it is determined whether the first default configuration NSSAI needs to be carried in the registration result message. In particular, it is determined whether the second default configuration NSSAI is identical to the first default configuration NSSAI based on a first parameter associated with the second default configuration NSSAI currently stored in the terminal device. If the first default configuration NSSAI is the same as the second default configuration NSSAI, the first default configuration NSSAI is not carried in the registration result message, so that the efficiency of generating the registration result message is ensured; if not, the first default configuration NSSAI may be carried in the registration result message.

Optionally, the first parameter may include at least one of the second default configuration NSSAI itself currently stored by the terminal device, a version of the second default configuration NSSAI, and a timestamp of the second default configuration NSSAI. Then, when determining whether the second default configuration NSSAI is the same as the first default configuration NSSAI, that is, determining whether the default configuration NSSAI in the terminal device is the latest NSSAI corresponding to the network device, the determination may be implemented by using any of the foregoing parameters.

Optionally, the step of determining the first parameter related to the second default configuration NSSAI currently stored in the terminal device may be determined by one of the following manners:

the first method is as follows: and analyzing the registration request message to acquire the first parameter from the registration request message, namely directly carrying the first parameter in the registration request message.

The second method comprises the following steps: the first parameter is determined according to a record related to the default configuration NSSAI allocated to the terminal device and stored locally by the network device.

It should be further noted that, before the step of determining the first parameter related to the second default configuration NSSAI currently stored in the terminal device in the second embodiment, the following steps may be further included:

judging whether the second default configuration NSSAI is allocated to the terminal equipment or not; if the first default configuration NSSAI is not allocated, the terminal equipment is not allocated with the latest historical default configuration NSSAI currently, and the first default configuration NSSAI can be carried in the registration result message; if the default configuration NSSAI is already allocated, a determination may be further performed as to whether the default configuration NSSAI allocated to the terminal device and having the latest history, that is, the second default configuration NSSAI, is the same as the first default configuration NSSAI. If the first default configuration NSSAI is the same as the second default configuration NSSAI, the first default configuration NSSAI is not carried in the registration result message, so that the efficiency of generating the registration result message is ensured; if not, the first default configuration NSSAI may be carried in the registration result message.

Detailed description of the preferred embodiment

In the third embodiment, the step 103 may include the following steps:

acquiring a target indication carried in a registration request message; and determining whether the first default configuration NSSAI is carried in the registration result message or not according to the target indication.

It can be understood that the target indication carried by the registration request message sent by the terminal device is obtained by analyzing the registration request message, so as to determine whether the first default configuration NSSAI needs to be carried in the registration result message according to the specific content corresponding to the target indication identifier.

Optionally, in an example, the target indication may identify a first value or a second value, so that whether the first default configuration NSSAI is carried in the registration result message may be determined according to a value corresponding to the target indication; when a first value is taken, for example 1, it is determined that the first default configuration NSSAI is carried in the registration result message; when taking a second value, for example 0, it is determined that the first default configuration NSSAI is not carried in the registration result message.

Optionally, in another example, the target indication is used to identify a first parameter related to a second default configuration nsai currently stored by the terminal device, where the first parameter is used for the network device to determine whether to carry the first default configuration nsai in the registration result message. If the second default configuration NSSAI is determined to be different from the first default configuration NSSAI based on the first parameter, determining that the first default configuration NSSAI is carried in the registration result message; if it is determined based on the first parameter that the second default configuration NSSAI is the same as the first default configuration NSSAI, it is determined that the first default configuration NSSAI is not carried in the registration result message.

Optionally, the first parameter may include at least one of the second default configuration NSSAI itself, a version of the second default configuration NSSAI, and a timestamp of the second default configuration NSSAI currently stored by the terminal device. Then, when determining whether the second default configuration NSSAI is the same as the first default configuration NSSAI, that is, determining whether the default configuration NSSAI in the terminal device is the latest NSSAI corresponding to the network device, the determination may be implemented by using any of the foregoing parameters.

Detailed description of the invention

In a fourth specific embodiment, the step 103 may include the following steps:

judging whether the terminal equipment has the capability of analyzing the default configuration NSSAI from the registration result message; and determining whether the registration result message carries the first default configuration NSSAI or not according to the judgment result.

It can be understood that, in the process of determining whether to carry the first default configuration NSSAI corresponding to the terminal device in the registration result message, it may be determined whether the terminal device supports parsing the default configuration NSSAI in the registration result message, and determine whether it is necessary to carry the first default configuration NSSAI in the registration result message according to the determination result of the capability of the terminal device.

Optionally, in the third specific embodiment, it may be determined whether the terminal device has the capability of parsing the default configuration NSSAI from the registration result message according to a capability reporting condition of the terminal device or a protocol version supported by the terminal device. The capability reporting condition of the terminal device or the protocol version supported by the terminal device can be obtained by analyzing the registration request message.

Optionally, in the third embodiment, if the determination result indicates that the terminal device has the capability of parsing out the default configuration NSSAI from the registration result message, the first default configuration NSSAI may be carried in the registration result message; if the judgment result indicates that the terminal device does not have the capability of analyzing the default configuration NSSAI from the registration result message, the first default configuration NSSAI does not need to be carried in the registration result message.

Detailed description of the preferred embodiment

In this embodiment, if the registration result message is a registration failure message, when determining that the current network registration fails, step 103 may include the following steps:

under the condition that a first preset condition is met, determining that a first default configuration NSSAI is carried in a registration result message; wherein, the first preset condition comprises: the authentication of the terminal equipment is passed, the identity of the terminal equipment is valid, and the terminal equipment has the capability of analyzing the default configuration NSSAI from the registration result message.

Under the condition that a second preset condition is met, determining that the registration result message does not carry a first default configuration NSSAI; wherein the second preset condition comprises one of the following conditions: the identity of the terminal equipment is invalid; the device identification is invalid; the terminal equipment cannot support the fifth generation mobile communication 5G service; the authentication of the terminal device fails.

It can be understood that, if the current network registration fails, the reason for the current network registration failure is also considered when determining whether the first default configuration NSSAI corresponding to the terminal device is carried in the registration result message.

Optionally, if the current network registration fails, the first default configuration NSSAI needs to be carried in a registration result message, that is, a registration failure message, when a first preset condition is met, in an example, the first preset condition may include that the terminal device passes authentication, an identity of the terminal device is valid, and the terminal device has a capability of parsing out the default configuration NSSAI from the registration result message; in another example, the first preset condition may further include that the terminal device passes authentication, that is, the network device considers that the identity of the terminal device is legal and the identity of the terminal device is valid. And when a second preset condition is met, the first default configuration NSSAI does not need to be carried in the registration failure message, where the second preset condition may include, but is not limited to, one or more of the following: the identity of the terminal equipment is invalid; the device identification is invalid; the terminal equipment cannot support the fifth generation mobile communication 5G service; the authentication of the terminal device fails.

Optionally, in other embodiments of the present invention, if the current network registration fails, but meets a first preset condition that the first default configuration nsai may be carried in the registration result message, and there may be a case that the network device cannot provide the default configuration nsai meeting the request of the terminal device for the terminal device, a reason that the registration result message cannot be used in the registration failure, that is, the reason for the registration failure may be fed back to the terminal device, for example: CAUSE #62, no network silicon available (no network slice available), or other network resource shortage; for another example: CAUSE #69Insufficient resource for specific slice (lack of explicit slice resources), and so on.

Step 105: and sending a registration result message to the terminal equipment according to the determination result. Optionally, see also step 206 shown in fig. 2 and step 307 shown in fig. 3. Wherein, the registration result message carries the first default configuration NSSAI or does not carry the first default configuration NSSAI according to the specific determination result.

Of course, in other embodiments of the present invention, the method of network registration may be implemented as follows:

receiving a registration request message sent by terminal equipment; in the process of generating a registration result message corresponding to the registration request message, carrying a first default configuration NSSAI corresponding to the terminal equipment in the registration result message; and sending a registration result message to the terminal equipment.

It can be understood that, in the network registration process, when a registration result message corresponding to the registration request message of the terminal device is generated, the first default-configuration network slice selection assistance message NSSAI corresponding to the terminal device may be directly carried in the registration result message. Therefore, the default configuration NSSAI corresponding to the terminal equipment can be sent to the terminal equipment in time through the registration result message, and the default configuration NSSAI does not need to be sent to the terminal equipment through specially sending DL NAS TRANSPORT signaling, so that network signaling is saved; meanwhile, the terminal equipment can have available default configuration NSSAI when network registration needs to be initiated again, and the network efficiency is ensured.

Optionally, in any of the above embodiments, if it is determined that the first default configuration NSSAI is carried in the registration result message, different manners may be adopted, and when the registration result message is generated, the first default configuration NSSAI is carried in the registration result message, which includes but is not limited to the manners described in the following specific embodiments:

detailed description of the preferred embodiment

In the first embodiment, when it is determined that the first default configuration NSSAI is carried in the registration result message, the first default configuration NSSAI is carried in the registration result message in a manner of multiplexing the first information element IE in the registration result message.

It can be understood that the first default configuration NSSAI is carried by multiplexing an existing Information Element (IE), i.e., the first IE, in the registration result message, so as to save cell resources.

Detailed description of the preferred embodiment

In the second embodiment, when it is determined that the first default configuration NSSAI is carried in the registration result message, the first default configuration NSSAI is carried in the registration result message in a manner of adding the second IE to the registration result message.

It is to be understood that the first default configuration NSSAI is carried by adding a new IE, i.e., a second IE, to the registration result message.

Optionally, in the second specific embodiment, adding the second IE to the registration result message in an encoding manner includes one of:

(1) Based on the Payload Container (Payload Container) code, the type of the Payload Container is a Transparent Container (UE Parameters Update Transparent Container) for the terminal equipment to Update Parameters.

(2) Based on the transparent container coding for parameter update by the terminal equipment.

(3) Mapped NSSAI IE based encoding.

(4) Based on the target field code in the cell with the type of NSSAI, the target field corresponds to the auxiliary information S-NSSAI for selecting the target single network slice; wherein the target field comprises one of:

a) A Slice Service Type (SST) field.

Alternatively, the SST field may be denoted as "0000 0001".

b) An SST field and a Slice Differentiator (SD) field.

Alternatively, the SST field and the SD field may be denoted as "0000 0100".

c) An SST field of the mapped home public land mobile network HPLMN, the SST field of the mapped home public land mobile network HPLMN for indicating a target S-NSSAI as a default configuration S-NSSAI.

Alternatively, the mapped HPLMN SST field may be denoted as "0001 0000".

d) The SST field of the mapped HPLMN and the SD field of the mapped HPLMN (i.e., mapped HPLMN SST and mapped HPLMN SD), the SST field of the mapped HPLMN and the SD field of the mapped HPLMN are used to indicate that the target S-NSSAI is a default configuration S-NSSAI.

Alternatively, the mapped HPLMN SST and mapped HPLMN SD may be denoted as "0001".

Optionally, the cells of type NSSAI may include Configured NSSAI.

Optionally, in the method for network registration according to the embodiment of the present invention, the first default configuration NSSAI that needs to be carried in the registration result message may be determined by:

determining whether to query the Unified Data Management (UDM) entity for default configuration NSSAI; if yes, determining the default configuration NSSAI corresponding to the query result fed back by the UDM entity as a first default configuration NSSAI; if not, the default configuration NSSAI locally stored by the network device is determined as the first default configuration NSSAI.

It will be appreciated that in order to send the latest default configuration NSSAI of the network to the terminal device with the registration result message, the first default configuration NSSAI needs to be determined first. In this embodiment, it may be determined whether to perform the query of default configuration NSSAI to the UDM entity according to a subscription condition of the network device (i.e., the AMF entity) and the UDM entity.

If the signed content of the network device and the UDM entity is: the default configuration NSSAI in the UDM entity is immediately sent to the network device upon update, and the network device locally saves the updated default configuration NSSAI, as shown in fig. 2, for example: step 201, the UDM entity finds that the Default Configured NSSAI of the terminal equipment needs to be updated; step 202, the UDM entity sends the Default Configured NSSAI to the AMF entity through the Nudm _ SDM _ Notification; in step 203, the AMF entity receives the Default Configured NSSAI and then can cache the received Default Configured NSSAI. In this case, what is stored in the network device is the latest default configuration NSSAI, and at this time, the query of the default configuration NSSAI does not need to be performed to the UDM entity, that is, the default configuration NSSAI currently cached locally in the network device may be determined as the first default configuration NSSAI that needs to be carried in the registration result message.

If the signed content of the network device and the UDM entity is: when the network device queries the UDM entity, the UDM entity provides the latest default configuration NSSAI to the network device, that is, under this condition, the network device does not have the latest default configuration NSSAI stored therein, and at this time, it needs to query the UDM entity for the default configuration NSSAI, that is, the default configuration NSSAI corresponding to the query result fed back by the UDM entity is determined as the first default configuration NSSAI.

Optionally, in the method for network registration according to the embodiment of the present invention, when determining to perform query of default configuration NSSAI to the UDM entity, the method further includes:

sending a query request to the UDM entity, wherein the query request comprises a second parameter related to a second default configuration NSSAI currently stored in the terminal equipment, and the second parameter is used for the UDM entity to determine whether a query result corresponding to the query request contains a third default configuration NSSAI; determining a default configuration NSSAI corresponding to a query result fed back by the UDM entity as a first default configuration NSSAI, wherein the determining comprises: if the query result contains the third default configuration NSSAI, determining the third default configuration NSSAI as the first default configuration NSSAI; if the query result does not include the third default configuration NSSAI, the default configuration NSSAI locally stored by the network device is determined as the first default configuration NSSAI.

It can be understood that, when the default configuration NSSAI query needs to be performed on the UDM entity and the network device has already acquired the second parameter related to the second default configuration NSSAI currently stored by the terminal device, the query may be performed based on the second parameter, so that the UDM entity may determine whether to feed back the latest default configuration NSSAI to the network device according to the second parameter. For example, as shown in FIG. 3: step 303, the amf entity queries the UDM entity for Default Configured NSSAI of the UE, which may use the interface numm _ SDM _ Get; in step 304, after receiving the query from the AMF entity, the udm entity determines whether to return the latest Default Configured NSSAI of the UE to the AMF entity according to the relevant parameters provided by the AMF entity. Wherein the second parameter includes the second default configuration NSSAI itself currently stored by the terminal device or indication information related to the second default configuration NSSAI, and the indication information may indicate at least one of a version and a timestamp of the second default configuration NSSAI. In this way, if the UDM entity determines that the second default configuration NSSAI currently stored in the terminal device is the latest based on the second parameter, the update of the default configuration NSSAI is not required, and if the UDM entity determines that the second default configuration NSSAI currently stored in the terminal device is required to be updated based on the second parameter, the latest default configuration NSSAI, that is, the third default configuration NSSAI, may be carried in the query result. Following the example, as shown in fig. 3: in step 305, the udm entity sends a Response message corresponding to its query request, i.e. a query result, to the AMF entity, using an interface Response to numm _ SDM _ Get, wherein it is determined whether a Default Configured NSSAI is included in the Response message as described in step 304.

Then, when a query is made to the UDM entity and a third default configuration NSSAI fed back by the UDM entity is received, determining the third default configuration NSSAI as the first default configuration NSSAI; when the default configuration NSSAI carried in the query result fed back by the UDM entity is empty, the default configuration NSSAI currently stored locally by the network device may be determined as the default configuration NSSAI corresponding to the query result, that is, the default configuration NSSAI currently stored locally by the network device may be determined as the first default configuration NSSAI at this time.

Optionally, after the query of the default configuration NSSAI is performed on the UDM entity and the query result fed back by the UDM entity carries the latest default configuration NSSAI, that is, the third default configuration NSSAI may be updated locally in the network device. If the query result fed back by the UDM entity does not carry the latest default configuration NSSAI, the state of the local default configuration NSSAI of the network device may be kept unchanged, that is, if the local default configuration NSSAI of the network device has been cached, the existing default configuration NSSAI is continuously saved, and if the local default configuration NSSAI of the network device has not been cached, the state of the default configuration NSSAI that is not cached is continuously kept unchanged. Following the example, as shown in fig. 3: step 306, after receiving the response message from the UDM entity, the AMF entity updates the Default Configured NSSAI to the AMF local if the response message contains the Default Configured NSSAI; if the response message does not contain the Default Configured NSSAI, the state of the Default Configured NSSAI in the AMF entity is kept unchanged, namely if the local state is not stored, the state is continuously not stored; if the local storage exists, the existing Default Configured NSSAI is continuously stored.

Optionally, the method for network registration according to the embodiment of the present invention may further include the following steps: and receiving a target response message sent by the terminal equipment, wherein the target response message comprises a notice that whether the terminal equipment acquires the NSSAI based on the registration result message.

Optionally, see step 208 shown in fig. 2 and step 309 shown in fig. 3. Wherein, the registration result message carries the first default configuration NSSAI or does not carry the first default configuration NSSAI according to the specific determination result.

It can be understood that, under a certain condition, it may be analyzed from the target response message fed back by the terminal device whether the terminal device has obtained the notification of the first default configuration NSSAI from the registration result message, for example, the network device has agreed with the terminal device and needs the terminal device to report the notification based on the target response message.

Optionally, the target response message includes a registration completion message or an uplink data transfer (UL DataTransport) message.

It should be noted that, the target response message may include, in addition to the notification that the terminal device has obtained the first default configuration nsai from the registration result message, a corresponding notification that the terminal device successfully obtains other information from the registration result message.

It should be noted that, if it is determined in step 103 that the first default configuration NSSAI does not need to be carried in the registration result message, in the embodiment of the present invention, it is further optional that, in order to make available a default configuration NSSAI when the terminal device initiates registration again in the following, after determining that network registration fails, a DL NAS TRANSPORT signaling is used to send the first default configuration NSSAI to the terminal device, so as to avoid affecting network efficiency.

Referring to fig. 4, an embodiment of the present invention provides a network registration method, which is executed by a terminal device, and includes the following steps:

step 401: a registration request message is sent to the network device.

Optionally, the network device may be an AMF entity, which may refer to step 204 shown in fig. 2 and step 301 shown in fig. 3.

Step 403: and receiving a registration result message corresponding to the registration request message sent by the network equipment. Optionally, see also step 206 shown in fig. 2 and step 307 shown in fig. 3.

Optionally, the registration result message includes a registration success message or a registration failure message.

Step 405: and detecting whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI.

Step 407: and determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result. Optionally, see step 207 shown in fig. 2 and step 308 shown in fig. 3.

In the embodiment of the present invention, a network registration process is initiated by sending a registration request message to a network device, and after receiving a registration result message corresponding to the registration request message and fed back by the network device, whether the registration result message carries a first default configuration network slice selection auxiliary message NSSAI corresponding to the terminal device is detected, so as to determine a final state of a local default configuration NSSAI of the terminal device according to a specific detection result. Therefore, in some scenes, the default configuration NSSAI corresponding to the terminal equipment can be obtained through the registration result message, and the default configuration NSSAI does not need to be obtained through specially sending DL NAS TRANSPORT signaling, so that the aim of saving network signaling resources is fulfilled; meanwhile, the terminal equipment can have available default configuration NSSAI when the network registration needs to be initiated again, and the network efficiency is ensured.

Optionally, in a specific embodiment of the method for network registration according to the embodiment of the present invention, the registration request message carries a target indication, where the target indication is used to request that the network device carries the first default configuration NSSAI in a registration result message.

It can be understood that, by means of carrying the target indication in the registration request message, the network device may be directly requested to carry the first default configuration NSSAI corresponding to the terminal device in the registration result message corresponding to the registration request message.

Optionally, in another specific embodiment of the method for network registration according to the embodiment of the present invention, the registration request message carries a target indication, where the target indication is used for the network device to determine whether the registration result message carries the first default configuration NSSAI.

Specifically, different values, such as a first value or a second value, of the target indication identifier may be used, so that the network device may determine whether the first default configuration NSSAI is carried in the registration result message according to the value corresponding to the target indication; when a first value is taken, for example 1, it is determined that the first default configuration NSSAI is carried in the registration result message; when taking a second value, for example 0, it is determined that the first default configuration NSSAI is not carried in the registration result message.

Optionally, in another specific embodiment of the method for network registration according to the embodiment of the present invention, the registration request message carries a first parameter related to a second default configuration NSSAI currently stored by the terminal device or a target indication for identifying a first parameter related to a second default configuration NSSAI currently stored by the terminal device, where the first parameter is used for the network device to determine whether to carry the first default configuration NSSAI in the registration result message.

It can be understood that, by providing the network device with the first parameter related to the second default configuration NSSAI currently stored in the terminal device, the network device determines whether to carry the first default configuration NSSAI in the registration result message based on the first parameter. Therefore, the network equipment does not need to additionally send the DL NAS TRANSPORT signaling, and the signaling resource waste is avoided.

It should be noted that, the specific process of the network device determining whether the registration result message carries the first default configuration NSSAI based on the first parameter may refer to the related content in the network registration method executed by the network device, and is not described herein again.

Optionally, the first parameter may include at least one of the second default configuration NSSAI itself currently stored by the terminal device, a version of the second default configuration NSSAI, and a timestamp of the second default configuration NSSAI.

Optionally, in the method for network registration according to the embodiment of the present invention, the target indication may be carried in the registration request message in different manners, so that the network device determines whether to carry the first default configuration NSSAI in the registration result message based on the target indication, which includes but is not limited to the following specific embodiments:

detailed description of the preferred embodiment

In the first embodiment, the target indication is carried in the registration request message by multiplexing the first information element IE in the registration request message; wherein the target indication occupies one or more bits in the first cell.

It can be understood that the target indication is carried by multiplexing the existing first IE in the registration request message, so as to save cell resources.

For example, the IE that may be in the registration request message: in the Network slicing indication, one or several bits of the Network slicing indication are used to identify whether the UE requests the Network device to carry the first default configuration NSSAI in the registration result message. Take the example of occupying one bit as follows: in an example, if the target indication is identified by a bit in the registration request message, it indicates that the terminal device requests the network device to carry the first default configuration NSSAI in the registration result message. In another example, if the value of the bit is 0, the identity UE does not request the network device to carry the first default configuration NSSAI in the registration result message, and if the value of the bit is 1, the identity UE requests the network device to carry the first default configuration NSSAI in the registration result message.

Detailed description of the preferred embodiment

Carrying the target indication in the registration request message in a mode of adding a second IE in the registration request message; wherein the second IE employs an encoding structure of a Type-Length-Value (TLV) format or a Type-Value TV format.

It can be understood that the target indication is carried in a manner of adding a new IE, i.e., a second IE, in the registration request message; the number of bytes occupied by V may be a fixed value, a value agreed between the network device and the terminal device, or a value calculated by other parameters.

For example, if the value of the new IE is 0, the identity UE does not request the network device to carry the first default configuration NSSAI in the registration result message, and if the value of the new IE is 1, the identity UE requests the network device to carry the first default configuration NSSAI in the registration result message.

In this embodiment of the present invention, the first default configuration NSSAI is a latest default configuration NSSAI corresponding to the terminal device, and in addition to requesting the network device to carry the first default configuration NSSAI in the registration result message by using the manner of carrying the target indication in the registration request message, the network registration method may further include the following steps:

and reporting the capability of the terminal equipment or the supported protocol version to the network equipment. Therefore, the network device can judge whether the terminal device has the capability of analyzing the default configuration NSSAI from the registration result message or not based on the reported parameters, and further can determine whether the registration result message carries the first default configuration NSSAI or not according to the judgment result.

It should be noted that, the specific process of determining, by the network device, whether to carry the first default configuration nsai in the registration result message may refer to the relevant content in the network registration method executed by the network device, based on whether the terminal device has the result of analyzing the capability of the default configuration nsai from the registration result message, and is not described herein again.

Optionally, in the method for network registration according to the embodiment of the present invention, the step 407 may be executed as follows:

if the registration result message carries the first default configuration NSSAI, the integrity of the registration result message is checked; if the integrity check of the registration result message passes, performing integrity check on the first default configuration NSSAI; if the integrity check on the first default configuration NSSAI passes, the locally stored default configuration NSSAI is replaced with the first default configuration NSSAI.

It can be understood that if the registration result message is found to carry the first default configuration NSSAI by analyzing the registration result message, the registration result message may be subjected to integrity check to determine whether the registration result message is a message sent from a legal network; further, in case that the integrity check of the registration result message is successful, the integrity check may be further performed on the corresponding Default Configured NSSAI; and under the condition that the integrity detection of the first default configuration NSSAI carried in the registration result message is successful, replacing the locally stored default configuration NSSAI with the first default configuration NSSAI.

It should be noted that, in the case that the integrity check on the first Default configuration NSSAI carried in the registration result message is successful and no historical Default Configured NSSAI exists locally in the terminal device, the first Default configuration NSSAI is directly stored.

It should be noted that, when the integrity check on the registration result message and the first Default Configured NSSAI carried in the registration result message fails, the Default Configured NSSAI in the registration result message is discarded.

Optionally, the method for network registration in the embodiment of the present invention may further include the following steps:

and sending a target response message to the network equipment, wherein the target response message contains a notice indicating whether the terminal equipment receives the default configuration NSSAI carried in the registration result message.

It can be understood that, under a certain condition, the result of whether the first default configuration NSSAI has been obtained from the registration result message may be notified to the network device through a target response message fed back to the network device, for example, the network device has agreed with the terminal device that the terminal device needs to report a notification based on the target response message.

Optionally, the target response message includes a registration completion message or an uplink Data Transport (UL Data Transport) message.

It should be noted that, the target response message may include, in addition to a notification that whether the terminal device has obtained the first default configuration NSSAI from the registration result message, a notification that the terminal device successfully obtains other information from the registration result message.

It should be noted that, in other embodiments of the present invention, when the network device receives the target response message, the target response message may not carry the notification.

It should be noted that, if it is determined in step 405 that the registration result message does not carry the first Default configuration NSSAI, in the embodiment of the present invention, the local Default Configured NSSAI state of the terminal device is maintained, that is, if the local Default Configured NSSAI state is not stored, the local Default Configured NSSAI state is continuously not stored; if the local storage exists, the existing Default Configured NSSAI is continuously stored.

Further optionally, in order to have available default configuration NSSAI when the subsequent registration is initiated again, the latest default configuration NSSAI, that is, the first default configuration NSSAI, may be obtained by receiving a DL NAS TRANSPORT signaling sent by the network device after it is determined that the network registration fails, so as to avoid affecting the network efficiency.

Referring to fig. 5, an embodiment of the present invention provides a network device 500, where the network device 500 includes a receiving module 501, a determining module 503, and a sending module 505.

The receiving module 501 is configured to receive a registration request message sent by a terminal device; the determining module 503 is configured to determine whether a first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal device is carried in a registration result message, where the registration result message corresponds to the registration request message; the sending module 505 is configured to send a registration result message to the terminal device according to the determination result.

Optionally, in the network device 500 according to the embodiment of the present invention, the determining module 503 may be configured to:

Optionally, the network device 500 according to the embodiment of the present invention may further include:

and the configuration module is used for carrying the first default configuration NSSAI in the registration result message in a mode of multiplexing the first information element IE in the registration result message under the condition of determining that the first default configuration NSSAI is carried in the registration result message.

Optionally, in the network device 500 according to the embodiment of the present invention, the configuration module may be further configured to:

and under the condition that the first default configuration NSSAI is carried in the registration result message, carrying the first default configuration NSSAI in the registration result message in a mode of adding a second IE in the registration result message.

Optionally, in the network device 500 according to the embodiment of the present invention, the encoding manner of adding the second IE to the registration result message includes one of the following:

and based on the payload container coding, the type of the payload container is a transparent container used for parameter updating of the terminal equipment.

Based on transparent container coding for parameter updating of terminal equipment; NSSAI IE encoding based on the mapping.

Encoding based on a target field in a cell of type NSSAI, the target field corresponding to target single network slice selection assistance information S-NSSAI, the target field including one of:

a Slicing Service Type (SST) field; an SST field and a slice differentiator SD field; an SST field of the mapped home public land mobile network HPLMN, the SST field of the mapped home public land mobile network HPLMN being used for indicating that the target S-NSSAI is a default configuration S-NSSAI; the SST field of the mapped HPLMN and the SD field of the mapped HPLMN, the SST field of the mapped HPLMN and the SD field of the mapped HPLMN are used to indicate that the target S-NSSAI is a default configuration S-NSSAI.

Optionally, in the network device 500 according to the embodiment of the present invention, the determining module 503 may be further configured to:

under the condition that the registration result message is determined to carry the first default configuration NSSAI, determining whether to query the unified data management entity UDM entity for the default configuration NSSAI; if yes, determining the default configuration NSSAI corresponding to the query result fed back by the UDM entity as a first default configuration NSSAI; if not, the default configuration NSSAI locally stored by the network device is determined as the first default configuration NSSAI.

under the condition that the inquiry of default configuration NSSAI is determined to be carried out on the UDM entity, sending an inquiry request to the UDM entity, wherein the inquiry request comprises a second parameter related to a second default configuration NSSAI currently stored in the terminal equipment, and the second parameter is used for the UDM entity to determine whether a third default configuration NSSAI is contained in an inquiry result corresponding to the inquiry request; if the query result contains the third default configuration NSSAI, determining the third default configuration NSSAI as the first default configuration NSSAI; if the query result does not include the third default configuration NSSAI, the default configuration NSSAI locally stored by the network device is determined as the first default configuration NSSAI.

Optionally, in the network device 500 according to the embodiment of the present invention, the registration result message includes a registration success message or a registration failure message.

Optionally, in the network device 500 according to the embodiment of the present invention, the determining module 503, when the registration result message is a registration failure message, may be configured to:

under the condition that a second preset condition is met, determining that a first default configuration NSSAI does not need to be carried in a registration result message; wherein the second preset condition comprises at least one of the following conditions: the identity of the terminal equipment is invalid; the device identification is invalid; the terminal equipment cannot support the fifth generation mobile communication 5G service; the authentication of the terminal device fails.

Optionally, in the network device 500 according to the embodiment of the present invention, the receiving module 501 may be further configured to:

and receiving a target response message sent by the terminal equipment, wherein the target response message comprises a notice that whether the terminal equipment acquires the NSSAI based on the registration result message.

It can be understood that, the network device 500 provided in the embodiment of the present invention can implement the foregoing network registration method performed by the network device 500, and the relevant descriptions about the network registration method are all applicable to the network device 500, and are not described herein again.

Referring to fig. 6, an embodiment of the present invention provides a terminal device 600, where the terminal device 600 includes: a sending module 601, a receiving module 603, a detecting module 605 and a determining module 607.

The sending module 601 is configured to send a registration request message to a network device; the receiving module 603 is configured to receive a registration result message corresponding to a registration request message sent by a network device; the detecting module 605 is configured to detect whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI; the determining module 607 is configured to determine the state of the default configuration NSSAI local to the terminal device according to the detection result.

Optionally, in the terminal device 600 of the embodiment of the present invention, the registration request message carries a target indication, where the target indication is used to request the network device to carry the first default configuration NSSAI in the registration result message or is used for the network device to determine whether the registration result message carries the first default configuration NSSAI.

Optionally, the terminal device 600 according to the embodiment of the present invention may further include:

the configuration module is used for carrying the target indication in the registration request message by multiplexing the first information element IE in the registration request message; wherein the target indication occupies one or more bits in the first cell.

Optionally, in the terminal device 600 according to the embodiment of the present invention, the configuration module may be further configured to:

carrying the target indication in the registration request message in a mode of adding a second IE in the registration request message; wherein the second IE employs an encoding structure of a type-length-value TLV format or a type-value TV format.

Optionally, in the terminal device 600 according to the embodiment of the present invention, the determining module 607 may be configured to:

Optionally, in the terminal device 600 according to the embodiment of the present invention, the sending module 601 may be further configured to:

It can be understood that, the terminal device 600 provided in the embodiment of the present invention can implement the foregoing network registration method executed by the terminal device 600, and the relevant descriptions about the network registration method are all applicable to the terminal device 600, and are not described herein again.

In the embodiment of the present invention, a network registration process is initiated by sending a registration request message to a network device, and after receiving a registration result message corresponding to the registration request message and fed back by the network device, whether the registration result message carries a first default configuration network slice selection auxiliary message NSSAI corresponding to the terminal device is detected, so as to determine a final state of a local default configuration NSSAI of the terminal device according to a specific detection result. Therefore, in some scenes, the default configuration NSSAI corresponding to the terminal equipment can be obtained through the registration result message, and the default configuration NSSAI is not required to be obtained through specially sending DL NAS TRANSPORT signaling, so that the aim of saving network signaling resources is fulfilled; meanwhile, the terminal equipment can have available default configuration NSSAI when the network registration needs to be initiated again, and the network efficiency is ensured.

Referring to fig. 7, fig. 7 is a structural diagram of a network device according to an embodiment of the present invention, which can implement details of the foregoing network registration method and achieve the same effects. As shown in fig. 7, the network device 700 includes: a processor 701, a transceiver 702, a memory 703, a user interface 704, and a bus interface 705, wherein:

in this embodiment of the present invention, the network device 700 further includes: a computer program stored on the memory 703 and executable on the processor 701, the computer program when executed by the processor 701 implementing the steps of:

receiving a registration request message sent by terminal equipment; determining whether first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal equipment is carried in a registration result message, wherein the registration result message corresponds to the registration request message; and sending a registration result message to the terminal equipment according to the determination result.

In FIG. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits representing one or more processors, in particular processor 701, and memory, in particular memory 703 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface 705 provides an interface. The transceiver 702 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 704 may also be an interface capable of interfacing externally to a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

In the embodiment of the invention, in the network registration process, when a registration result message corresponding to the registration request message of the terminal device is generated, whether a first default configuration network slice selection auxiliary message NSSAI corresponding to the terminal device can be carried in the registration result message or not is determined, so that the registration result message is fed back to the terminal device according to a specific determination result. Therefore, in some scenes, the default configuration NSSAI corresponding to the terminal equipment can be sent to the terminal equipment in time through the registration result message without sending the default configuration NSSAI to the terminal equipment through specially sending a DL NAS TRANSPORT signaling, so that network signaling resources are saved; meanwhile, the terminal equipment can have available default configuration NSSAI when network registration needs to be initiated again, and the network efficiency is ensured.

Fig. 8 is a block diagram of a terminal device of another embodiment of the present invention. The terminal apparatus 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal device 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 802 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used to implement various basic services and process hardware-based tasks. The application program 8022 includes various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.

In this embodiment of the present invention, the terminal device 800 further includes: a computer program stored on the memory 802 and executable on the processor 801, the computer program when executed by the processor 801 implementing the steps of:

sending a registration request message to the network equipment; receiving a registration result message corresponding to a registration request message sent by network equipment; detecting whether a registration result message carries first default configuration network slice selection auxiliary information NSSAI; and determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result.

The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and combines the hardware to complete the steps of the method. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 801, implements the steps of the method embodiments of network registration described above.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions of the invention, or a combination thereof.

For a software implementation, the techniques of an embodiment of the invention may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions of the embodiments of the invention. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The terminal device 800 can implement each process implemented by the terminal device in the foregoing embodiments, and in order to avoid repetition, details are not repeated here.

Preferably, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the above-mentioned method for network registration, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiment applied to network registration of a network device, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing network registration method embodiment, and can achieve the same technical effect, and for avoiding repetition, details are not repeated here.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing method embodiment for network registration of a terminal device, and can achieve the same technical effect, and in order to avoid repetition, the computer program is not described herein again. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A network registration method is applied to a network device, and is characterized in that the method comprises the following steps:

receiving a registration request message sent by terminal equipment;

determining whether a registration result message carries first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal device, wherein the registration result message corresponds to the registration request message;

and sending the registration result message to the terminal equipment according to the determination result.

2. The method according to claim 1, wherein the determining whether the first default configuration NSSAI corresponding to the terminal device is carried in the registration result message includes:

detecting whether the registration request message carries a target indication, wherein the target indication is used for requesting the network equipment to carry the first default configuration NSSAI in the registration result message;

if yes, determining that the registration result message carries the first default configuration NSSAI;

if not, determining that the first default configuration NSSAI is not carried in the registration result message.

3. The method according to claim 1, wherein the determining whether the first default configuration NSSAI corresponding to the terminal device is carried in the registration result message includes:

determining a first parameter related to a second default configuration NSSAI currently stored in the terminal equipment;

if it is determined based on the first parameter that the second default configuration NSSAI is different from the first default configuration NSSAI, determining that the first default configuration NSSAI is carried in the registration result message;

if it is determined based on the first parameter that the second default configuration NSSAI is the same as the first default configuration NSSAI, it is determined that the first default configuration NSSAI is not carried in the registration result message.

4. The method according to claim 1, wherein the determining whether the first default configuration NSSAI corresponding to the terminal device is carried in the registration result message includes:

judging whether the terminal equipment has the capability of analyzing the default configuration NSSAI from the registration result message;

and determining whether the registration result message carries the NSSAI according to the judgment result.

5. The method according to any of claims 1 to 4, wherein in case it is determined that the first default configuration NSSAI is carried in the registration result message, the method further comprises:

and carrying the NSSAI in the registration result message in a mode of multiplexing the first information element IE in the registration result message.

6. The method according to any of claims 1 to 4, wherein in case it is determined that the first default configuration NSSAI is carried in the registration result message, the method further comprises:

and carrying the NSSAI in the registration result message in a mode of adding a second IE in the registration result message.

7. The method of claim 6, wherein the encoding of the second IE added in the registration result message includes one of:

based on payload container coding, the type of the payload container is a transparent container used for parameter updating of the terminal equipment;

based on transparent container coding for parameter updating of the terminal device;

NSSAI IE encoding based on the mapping;

encoding based on a target field in a cell of type NSSAI, the target field corresponding to target single network slice selection assistance information S-NSSAI, the target field comprising one of:

a slicing service type SST field; SST field and slice differentiator SD field; an SST field of a mapped home public land mobile network HPLMN, the SST field of the mapped home public land mobile network HPLMN used to indicate the target S-NSSAI as a default configuration S-NSSAI; an SST field of the mapped HPLMN and an SD field of the mapped HPLMN for indicating the target S-NSSAI as a default configuration S-NSSAI.

8. The method according to any of claims 1 to 4, wherein in case it is determined that the first default configuration NSSAI is carried in the registration result message, the method further comprises:

determining whether to query the Unified Data Management (UDM) entity for default configuration NSSAI;

if yes, determining a default configuration NSSAI corresponding to the query result fed back by the UDM entity as the first default configuration NSSAI;

if not, determining the default configuration NSSAI locally stored by the network equipment as the first default configuration NSSAI.

9. The method according to claim 8, wherein in case it is determined to query the UDM entity for a default configuration NSSAI, the method further comprises:

sending an inquiry request to the UDM entity, where the inquiry request includes a second parameter related to a second default configuration NSSAI currently stored in the terminal device, and the second parameter is used for the UDM entity to determine whether a query result corresponding to the inquiry request includes a third default configuration NSSAI;

wherein the determining, as the first default configuration NSSAI, the default configuration NSSAI corresponding to the query result fed back by the UDM entity includes:

if the query result includes the third default configuration NSSAI, determining the third default configuration NSSAI as the first default configuration NSSAI;

if the query result does not include the third default configuration NSSAI, determining the default configuration NSSAI locally stored in the network device as the first default configuration NSSAI.

10. The method of claim 1, wherein the registration result message comprises a registration success message or a registration failure message.

11. The method according to claim 10, wherein when the registration result message is the registration failure message, determining whether the registration result message carries a first default configuration nsai corresponding to the terminal device, includes:

under the condition that a first preset condition is met, determining that the registration result message carries the first default configuration NSSAI; wherein the first preset condition comprises: and the authentication of the terminal equipment is passed, the identity of the terminal equipment is valid, and the terminal equipment has the capability of analyzing the default configuration NSSAI from the registration result message.

12. The method according to claim 10, wherein determining whether the registration result message carries the first default configuration NSSAI corresponding to the terminal device when the registration result message is the registration failure message includes:

determining that the first default configuration NSSAI is not carried in the registration result message under the condition that a second preset condition is met;

wherein the second preset condition comprises at least one of:

the identity of the terminal equipment is invalid;

the device identification is invalid;

the terminal equipment cannot support a fifth generation mobile communication 5G service;

and the authentication of the terminal equipment fails.

13. The method of claim 1, further comprising:

and receiving a target response message sent by the terminal equipment, wherein the target response message comprises a notification that whether the terminal equipment acquires the NSSAI based on the registration result message.

14. A network registration method is applied to a terminal device, and is characterized in that the method comprises the following steps:

sending a registration request message to the network equipment;

receiving a registration result message corresponding to the registration request message sent by the network equipment;

detecting whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI;

and determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result.

15. The method according to claim 14, characterized in that said registration request message carries a target indication, said target indication being used for requesting said network device to carry said first default configuration NSSAI in said registration result message or for said network device to determine whether to carry said first default configuration NSSAI in said registration result message.

16. The method of claim 15, further comprising:

carrying the target indication in the registration request message by multiplexing a first information element IE in the registration request message; wherein the target indication occupies one or more bits in the first information element.

17. The method of claim 15, further comprising:

18. The method according to claim 14, wherein said determining the state of the default configuration NSSAI local to the terminal device based on the detection result comprises:

if the registration result message carries the first default configuration NSSAI, performing integrity check on the registration result message;

if the integrity check of the registration result message passes, performing integrity check on the first default configuration NSSAI;

replacing a locally stored default configuration NSSAI with the first default configuration NSSAI if the integrity check on the first default configuration NSSAI passes.

19. The method of claim 14, further comprising:

and sending a target response message to the network equipment, wherein the target response message contains a notification indicating whether the terminal equipment receives the first default configuration NSSAI carried in the registration result message.

20. A network device, comprising:

the receiving module is used for receiving a registration request message sent by the terminal equipment;

a determining module, configured to determine whether a registration result message carries first default configuration network slice selection auxiliary information NSSAI corresponding to the terminal device, where the registration result message corresponds to the registration request message;

and the sending module is used for sending the registration result message to the terminal equipment according to the determined result.

21. A terminal device, comprising:

a sending module, configured to send a registration request message to a network device;

a receiving module, configured to receive a registration result message corresponding to the registration request message sent by the network device;

a detection module, configured to detect whether the registration result message carries first default configuration network slice selection auxiliary information NSSAI;

and the determining module is used for determining the state of the local default configuration NSSAI of the terminal equipment according to the detection result.

22. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 1 to 13.

23. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any of claims 14 to 19.

24. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 19.