WO2019137286A1 - Indication method and apparatus for local area data network - Google Patents

Abstract

An indication method and apparatus for a local area data network (LADN), for use in solving the problem of the prior art in a waste of signaling resource. The method comprises: obtaining first information, the first information comprising a first data network name (DNN) and a first indication for indicating that the first DNN is a DNN corresponding to an LADN, or the first information comprising a first DNN, the first DNN comprising a second indication for indicating that the first DNN is a DNN corresponding to an LADN; and determining that the first DNN is a DNN corresponding to an LADN according to the obtained first information so as to determine whether to send a PDU session establishment/modification/activation request message to a first core network device, the DNN corresponding to a PDU session being the first DNN. LADN information comprises the DNN of the LADN available for a terminal in the current registration area and service area information corresponding to the LADN.

Description

Method and device for indicating local data network Technical field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating a local data network.

Background technique

The concept of a local area data network (LADN) was introduced in the fifth generation of mobile communication technology (the 5th-generation, 5G). The user equipment (UE) can only access the local data network in a specific area, and the specific area, that is, the service area (SA) of the LADN. In addition, the establishment of a protocol data unit (PDU) session in 5G is application-based. Therefore, for an application applicable to the LADN, the PDU session of the data network for the LADN can be established and used only when the UE is located in the LADN SA. .

Since there is no effective way to determine whether the data network to which the application matches is a local data network, when triggering some applications suitable for the LADN, whether the UE can determine whether the data network matched by the application is a local data network, The process of performing a PDU session of the data network initiating the access, thereby causing waste of signaling resources.

Summary of the invention

The present application provides a management session method and device for a local data network, which is used to solve the problem of waste of signaling resources existing in the prior art.

In a first aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a terminal, including: acquiring first information, where the first information includes the first data network name and a first In an indication, the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or the first information includes a first data network name, where the first data network name includes a second indication, the second indication is used to indicate that the data network indicated by the first data network name is the LADN; and then determining, according to the obtained first information, that the data network indicated by the first data network name is The LADN.

After the UE is matched to a DNN according to the URSP, the UE can directly learn whether the DNN is a DNN corresponding to the LADN according to the first information acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area.

In a possible design, when the LADN information includes the first data network name and its corresponding service area information, and determining, according to the LADN information, the terminal is located in a service area corresponding to the first data network name. Transmitting, by the first core network device, a request message for establishing, modifying, or activating a protocol data unit PDU session, where the data network name corresponding to the PDU session is the first data network name, where the LADN information includes the The data network name of the LADN that the terminal can use in the current registration area and its corresponding service area information.

After the UE is matched to a DNN according to the URSP, the UE can directly determine whether the DNN is the DNN corresponding to the LADN according to the first information acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area, and further determine Whether to send a protocol data unit PDU session establishment/modification/activation request message to the first core network device.

In a possible design, the obtaining the first information includes:

Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

The manner of obtaining the first information is provided by the foregoing design, so that the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained first information.

In one possible design, the method further includes:

When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or ,

When the terminal does not save the LADN information, the request message is not sent to the first core network device.

With the above design, the UE obtains the first information in a manner that the UE can learn that the DNN is the DNN corresponding to the LADN according to the obtained first information, and further determines that the LADN information is not saved or the saved LADN information is not When at least one of the first data network name and the service area information corresponding to the first data network name is included, the operation of transmitting the request is not performed, thereby saving signaling resources.

In a possible design, after the sending of the PDU session establishment request message to the first core network device, the method further includes:

The second information is used to indicate that the data network indicated by the first data network name corresponding to the PDU session is the LADN. By saving the second information for subsequent use.

In a possible design, after saving the second information, the method further includes:

Determining, when the PDU session is to be modified/activated, determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session to be modified/activated is the LADN;

And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the A core network device sends a request message for the PDU session modification/activation.

After the UE establishes the LADN PDU session, the DNN corresponding to the DN is saved as the DNN corresponding to the LADN, so that when the session is modified or the user plane connection is activated again, the DNN corresponding to the PDU may be directly determined according to the saved information. The DNN corresponding to the LADN, thereby again determining whether to initiate the process of establishing/modifying/activating the session.

In one possible design, the method further includes:

When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the PDU session modification is not sent to the first core network device/ Activated request message; or,

When the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.

With the above design, after the UE learns that the DNN is the DNN corresponding to the LADN according to the saved second information, it is further determined that the LADN information is not saved or the saved LADN information does not include the first data network name and the When at least one of the service area information corresponding to the first data network name is performed, the operation of transmitting the request is not performed, thereby saving signaling resources.

In a second aspect, based on the same inventive concept as the first aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to a terminal, and the beneficial effects can be referred to the description of the first aspect. Narration. The device includes:

Obtaining a module, configured to obtain first information;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

And a first determining module, configured to determine, according to the first information, that the data network indicated by the first data network name is the LADN.

In one possible design, the device further includes:

a second determining module, configured to determine that the LADN information includes the first data network name and corresponding service area information

a sending module, configured to: when the second determining module determines, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, send a protocol data unit PDU session establishment/modification to the first core network device. / an activation request message, the data network name corresponding to the PDU session is the first data network name;

The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.

In a possible design, the obtaining module is specifically configured to:

Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

In a possible design, the sending module is further configured to:

When the LADN information of the second determining module does not include at least one of the first data network name and the service area information corresponding to the first data network name, not sent to the first core network device. The request message; or,

When the second determining module determines that the terminal does not save the LADN information, the request message is not sent to the first core network device.

In one possible design, the device further includes:

a saving module, configured to save, after the sending module sends a PDU session establishment request message to the first core network device, the second information, where the second information is used to indicate the first corresponding to the PDU session The data network indicated by the data network name is the LADN.

In a possible design, the first determining module is further configured to determine, according to the second information, that the PDU session is to be modified/activated after the saving, by the saving module, saving the second information. The data network indicated by the first data network name corresponding to the PDU session to be modified/activated is the LADN;

The sending module is further configured to: when the second determining module determines that the LADN information includes the first data network name and its corresponding service area information, and determine, according to the LADN information, that the terminal is located in the When the first data network name corresponds to the service area, the PDU session modification/activation request message is sent to the first core network device.

In a possible design, the sending module is further configured to: when the second determining module, the LADN information does not include the first data network name and the service area information corresponding to the first data network name. Not transmitting the PDU session modification/activation request message to the first core network device at least one item; or

When the second determining module determines that the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.

In a third aspect, based on the same inventive concept as the first aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to a terminal, and the beneficial effects can be referred to the description of the first aspect. Narration. The apparatus includes a processor for implementing the functions of each of the possible aspects of the first aspect or the first aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the first aspect or the first aspect of the first aspect. The apparatus can also include a communication interface for the terminal to communicate with other devices. Illustratively, the other device is a core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to perform acquiring the first information. The processor may specifically acquire the first information by using the communication interface when acquiring the first information.

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

Determining, according to the first information, a data network indicated by the first data network name as the LADN.

In a possible design, the processor is further configured to:

And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the first core network device Sending a request message of the protocol data unit PDU session establishment/modification/activation, the data network name corresponding to the PDU session is the first data network name;

The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.

In a possible design, the processor, when acquiring the first information, is specifically used to:

Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

In a possible design, the processor is further configured to:

When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or ,

When the terminal does not save the LADN information, the request message is not sent to the first core network device.

In a possible design, the processor is further configured to save the second information to the memory after sending a request message for establishing a PDU session to the first core network device, where the second information is used for And indicating that the data network indicated by the first data network name corresponding to the PDU session is the LADN.

In a possible design, the processor is further configured to:

Determining, according to the second information, the first data network name indication corresponding to the PDU session to be modified/activated, after saving the second information to the processor, when the PDU session is to be modified/activated Data network for the LADN;

And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the A core network device sends a request message for the PDU session modification/activation.

In a possible design, the processor is further configured to:

When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the PDU session modification is not sent to the first core network device/ Activated request message; or,

When the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.

In a fourth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a first core network device, including: sending first information to a terminal; the first information is used by the terminal to determine The data network indicated by the first data network name is a local data network LADN; wherein the first information includes the first data network name and a first indication, and the first indication is used to indicate the first data network name The indicated data network is the LADN; or the first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate the first data The data network indicated by the network name is the LADN.

With the above solution, the core network device sends the first information to the UE, so that the UE can directly determine whether the DNN is the DNN corresponding to the LADN according to the first information acquired by the UE, and then determine whether to perform the check. Whether the UE is in the action of the LADN service area.

In one possible design, the first information is sent to the terminal, including:

Sending a policy to the terminal, where the policy includes the first information.

The above-mentioned design provides that the core network device sends the first information to the UE in the policy, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained policy.

In a possible design, before the sending the first information to the terminal, the method further includes:

Receiving second information sent by the second core network device;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or the second The information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

After the second core network device receives the second information sent by the second core network device, the first core network device determines, according to the second information, that the first information is sent to the UE.

In a fifth aspect, based on the same inventive concept as the fourth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effects can be referred to the description of the fourth aspect. I will not repeat them here. The device includes:

a sending module, configured to send first information to the terminal; the first information is used by the terminal to determine that the data network indicated by the first data network name is a local data network LADN;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a possible design, the sending module is specifically configured to:

Sending a policy to the terminal, where the policy includes the first information.

In one possible design, the device further includes:

a receiving module, configured to receive second information sent by the second core network device before the sending module sends the first information to the terminal;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The second information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

The sixth aspect, based on the same inventive concept as the fourth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effects can be referred to the description of the fourth aspect. I will not repeat them here. The apparatus includes a processor for implementing the functions of each of the possible designs of the fourth aspect or the fourth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible aspects of the fourth aspect or the fourth aspect described above. The apparatus can also include a communication interface for the first core network device to communicate with other devices. Illustratively, the other device can be a terminal or other core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to send the first information to the terminal; specifically, The processor transmits the first information to the terminal through the communication interface. The first information is used by the terminal to determine that the data network indicated by the first data network name is a local data network LADN;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a possible design, the processor is specifically configured to send a policy to the terminal, where the policy includes the first information.

In a possible design, the processor is further configured to: before sending the first information to the terminal, receive the second information sent by the second core network device;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or the second The information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a seventh aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a terminal, including: acquiring a parameter, where the parameter includes a data network name set of a local data network LADN subscribed by the terminal; Determining a first data network name; determining, when the data network name set includes the first data network name, whether the terminal is within a service area of the first data network indicated by the first data network name; Transmitting, by the terminal, the request message of the protocol data unit PDU session establishment/modification/activation to the first core network device, where the terminal corresponds to the first data network name .

After the UE is matched to a DNN according to the URSP, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the parameters acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area.

In a possible design, determining whether the terminal is in a service area of the first data network indicated by the first data network name comprises: determining, according to LADN information, whether the terminal is in the first data network name indication Within the service area of the first data network; wherein the LADN information includes a data network name of the LADN that the terminal can use in the current registration area and its corresponding service area information.

In one possible design, the obtaining parameters include:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

The manner of obtaining the parameter is provided by the foregoing design, so that the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained first information.

In a possible design, determining, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name comprises:

Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .

After the UE obtains the parameter, the UE can learn, according to the obtained parameter, that the DNN is the DNN corresponding to the LADN, and then perform the determination according to the LADN information to determine whether the terminal is in the first data network name. Within the service area of a data network, through the above design, several ways are provided for determining whether the terminal is within the service area of the first data network indicated by the first data network name according to the LADN information.

In one possible design, the method further includes:

When it is determined that the terminal is not within the service area of the first data network, the request message is not sent to the first core network device.

After the UE obtains the parameter, the UE can determine that the DNN is the DNN corresponding to the LADN according to the obtained parameter, and further determine that the terminal is not in the service area of the first data network, and does not send. The request message, thereby saving signaling resources.

In a possible design, when the data network name set includes the first data network name, the method further includes:

When it is determined that the terminal does not save the LADN information, the request message is not sent to the first core network device.

With the above design, the data network name set includes the first data network name, and when it is determined that the terminal does not save the LADN information, the registration area where the terminal is located may not include the first data network name. The service area, so that the UE does not send the request message, thereby saving signaling resources.

The eighth aspect, based on the same inventive concept as the seventh aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the description of the seventh aspect. Narration. The device includes:

An obtaining module, configured to acquire a parameter, where the parameter includes a data network name set of a local data network LADN subscribed by the terminal;

a first determining module, configured to determine a first data network name;

a second determining module, configured to determine, when the data network name set includes the first data network name, whether the terminal is in a service area of the first data network indicated by the first data network name;

a sending module, configured to: when the second determining module determines that the terminal is in a service area of the first data network, send a request message for establishing, modifying, or activating a protocol data unit PDU session to the first core network device; The PDU session corresponds to the first data network name.

In a possible design, the obtaining module is specifically configured to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

In a possible design, the second determining module is configured to determine, according to the LADN information, whether the terminal is in the service area of the first data network indicated by the first data network name. Whether the terminal is in a service area of the first data network indicated by the first data network name; wherein the LADN information includes a data network name of the LADN and a corresponding service area of the LADN that the terminal can use in the current registration area information.

In a possible design, the second determining module is specifically configured to:

Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .

In a possible design, the sending module is further configured to: when the second determining module determines that the terminal is not in the service area of the first data network, not to the first core network device Send the request message.

In a possible design, the sending module is further configured to: when the first determining module determines that the data network name set includes the first data network name, determine, by the second determining module, When the terminal does not save the LADN information, the request message is not sent to the first core network device.

The ninth aspect, based on the same inventive concept as the seventh aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the description of the seventh aspect. Narration. The apparatus includes a processor for implementing the functions of each of the possible designs of the seventh aspect or the seventh aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible aspects of the seventh aspect or the seventh aspect described above. The apparatus can also include a communication interface for the terminal to communicate with other devices. Illustratively, the other device is a core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to execute acquisition parameters, where the parameters include the terminal A collection of data network names for the contracted local data network LADN. The processor may specifically acquire the parameter through the communication interface. Determining, by the processor, a first data network name; determining, when the data network name set includes the first data network name, whether the terminal is in a service area of a first data network indicated by the first data network name Sending a request message of protocol data unit PDU session establishment/modification/activation to the first core network device when the terminal is in the service area of the first data network; wherein the PDU session corresponds to the first A data network name.

In a possible design, the determining, when determining whether the terminal is in a service area of the first data network indicated by the first data network name, is specifically configured to: determine, according to LADN information, whether the terminal is Within the service area of the first data network indicated by the first data network name; wherein the LADN information includes a data network name of the LADN that the terminal can use in the current registration area and its corresponding service area information.

In a possible design, when the processor acquires parameters, it is specifically used to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

In a possible design, the processor, when determining, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name, is specifically used to:

Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .

In a possible design, the processor is further configured to not send the request message to the first core network device when determining that the terminal is not in a service area of the first data network.

In a possible design, the processor is further configured to: when the data network name set includes the first data network name, when determining that the terminal does not save the LADN information, do not The first core network device sends the request message.

In a tenth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a first core network device, including: sending a parameter to a terminal, where the parameter includes a local data network LADN subscribed by the terminal. And determining, by the parameter, the first data network name as the data corresponding to the first LADN, according to the parameter, when the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name. a network name, wherein the data network name of the first LADN is one of data network names of LADNs subscribed by the terminal.

Through the foregoing solution, the core network device sends the parameter to the UE, so that after the UE matches the URSP to the DNN, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the pre-acquired parameters of the UE, and determine whether to perform the check whether the UE is in the The action of the LADN service area.

In one possible design, parameters are sent to the terminal, including:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

The above-mentioned design provides that the core network device sends the parameter to the UE in the registration accept message or the configuration update message, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is LADN according to the obtained parameter. Corresponding DNN.

In a possible design, before sending parameters to the terminal, it also includes:

And receiving, by the second core network device, a second parameter, where the second parameter includes a data network name of the LADN that the terminal subscribes to.

After the second core network device receives the second parameter sent by the second core network device, the first core network device determines that the parameter is sent to the UE according to the second parameter.

The eleventh aspect, based on the same inventive concept as the tenth aspect, the embodiment of the present application provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effects can be referred to the description of the tenth aspect. The details are not described here, and the device includes:

a sending module, configured to send a parameter to the terminal, where the parameter includes a data network name set of the local data network LADN subscribed by the terminal, so that the terminal is to initiate a protocol data unit PDU session corresponding to the first data network name And determining, according to the parameter, the first data network name is a data network name corresponding to the first LADN, where the data network name of the first LADN is in a data network name of the LADN of the terminal subscription One.

Through the foregoing solution, the core network device sends the parameter to the UE, so that after the UE matches the URSP to the DNN, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the pre-acquired parameters of the UE, and determine whether to perform the check whether the UE is in the The action of the LADN service area.

In a possible design, the sending module is specifically configured to:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

In a possible design, the device further includes: a receiving module, configured to receive, by the sending module, a second parameter sent by the second core network device, where the sending parameter sends the parameter to the terminal, where the second parameter includes the terminal signing The data network name of LADN.

The twelfth aspect, based on the same inventive concept as the tenth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effects can be seen in the tenth aspect. The description will not be repeated here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the tenth or tenth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible aspects of the tenth or tenth aspect described above. The apparatus can also include a communication interface for the first core network device to communicate with other devices. Illustratively, the other device can be a terminal or other core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically used to send parameters to a terminal, where the parameters include the The data network name set of the local data network LADN that the terminal subscribes to; the processor may specifically send the parameter to the terminal by using the communication interface, so that the terminal is to initiate a protocol corresponding to the first data network name. Determining, according to the parameter, that the first data network name is a data network name corresponding to the first LADN, where the data network name of the first LADN is the data of the LADN subscribed by the terminal. One of the network names.

In a possible design, the processor is specifically configured to:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

The above-mentioned design provides that the core network device sends the parameter to the UE in the registration accept message or the configuration update message, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is LADN according to the obtained parameter. Corresponding DNN.

In a possible design, the processor is further configured to: before sending a parameter to the terminal, receive a second parameter sent by the second core network device, where the second parameter includes a data network name of the LADN that the terminal subscribes to.

In a thirteenth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a terminal, including: acquiring LADN information; wherein the LADN information includes a local data network LADN that is subscribed by the terminal. a data network name set, and service area information corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set; determining a first data network name; when the LADN information includes the first Determining, according to the service area information corresponding to the first data network name, that the terminal is located in the first data network indicated by the first data network name, when the data network name is the service area information corresponding to the first data network name. The request message of the protocol data unit PDU session establishment/modification/activation is sent to the first core network device when the service area is within the service area; wherein the PDU session corresponds to the first data network name.

After the UE is matched to a DNN according to the URSP, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the LADN information acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area.

In one possible design, the method further includes:

Sending the request message to the first core network device when the LADN information does not include the first data network name; or

When the LADN information includes the first data network name but does not include the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or

When the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, that the terminal is located in the first data. When the service area of the network is outside, the request message is not sent to the first core network device.

With the above design, after the UE acquires the LADN information, the UE can learn whether the DNN is the DNN corresponding to the LADN according to the acquired LADN information, and further determine whether it is located within the service area corresponding to the DNN to determine whether to perform the sending. If the requested operation is not satisfied, the request message is no longer sent, thereby saving signaling resources.

In one possible design, the obtaining LADN information includes:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the LADN information; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the LADN information.

The manner of obtaining the LADN information is provided by the foregoing design, so that the UE can know whether the DNN is the DNN corresponding to the LADN according to the obtained LADN information.

The fourteenth aspect, based on the same inventive concept as the thirteenth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the description of the thirteenth aspect. I won't go into details here. The device includes:

An obtaining module, configured to obtain LADN information;

The LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and a service area corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set. information;

a first determining module, configured to determine a first data network name;

a second determining module, configured to determine, according to the service area information corresponding to the first data network name, when the LADN information includes the first data network name and the service area information corresponding to the first data network name The terminal is located in a service area of the first data network indicated by the first data network name;

a sending module, configured to: when the second determining module determines, according to the service area information corresponding to the first data network name, that the terminal is located in a service area of the first data network indicated by the first data network name, The first core network device sends a request message for establishing, modifying, or activating a protocol data unit PDU session; wherein the PDU session corresponds to the first data network name.

In a possible design, the sending module is further configured to:

And when the second determining module determines that the LADN information does not include the first data network name, sending the request message to the first core network device; or

When the second determining module determines that the LADN information includes the first data network name but does not include the service area information corresponding to the first data network name, the request is not sent to the first core network device. Message; or,

When the second determining module determines that the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determines, according to the service area information corresponding to the first data network name, When the terminal is located outside the service area of the first data network, the request message is not sent to the first core network device.

In a possible design, the obtaining module is specifically configured to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the LADN information; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the LADN information.

In a fifteenth aspect, based on the same inventive concept as the thirteenth aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to a terminal, and the beneficial effects can be referred to the description of the thirteenth aspect. I won't go into details here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the thirteenth aspect or the thirteenth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible design aspects of the thirteenth aspect or the thirteenth aspect. The apparatus can also include a communication interface for the terminal to communicate with other devices. Illustratively, the other device is a core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to perform acquiring LADN information. Specifically, the processor may acquire the LADN information through the communication interface.

The LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and a service area corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set. information;

Determining the first data network name;

When the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, that the terminal is located in the first data. When the network name indicates the service area of the first data network, the protocol data unit PDU session establishment/modification/activation request message is sent to the first core network device; wherein the PDU session corresponds to the first data network name.

In a possible design, the processor is further configured to:

Sending the request message to the first core network device when the LADN information does not include the first data network name; or

When the LADN information includes the first data network name but does not include the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or

When the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, that the terminal is located in the first data. When the service area of the network is outside, the request message is not sent to the first core network device.

In a possible design, when the processor acquires LADN information, it is specifically used to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the LADN information; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the LADN information.

In a sixteenth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a first core network device, including: sending LADN information to a terminal, where the LADN information includes the terminal subscription a set of data network names of the local data network LADN, and service area information corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set; so that the terminal is to be initiated against Determining, according to the LADN information, that the first data network name is a data network name corresponding to the first LADN, where the first data network name is a data network name of the first LADN. One of the data network names of the LADNs contracted for the terminal.

With the above solution, the core network device sends the DNNs of all LADNs that are subscribed by the UE to the UE in the LADN information. After the UE matches the DNR according to the URSP, the UE can directly learn whether the DNN is the LADN according to the LADN information acquired by the UE. The DNN determines whether to perform an action to check if the UE is in the LADN service area, and does not need to add additional messages.

In one possible design, the LADN information is sent to the terminal, including:

Sending a registration accept message to the terminal, where the registration accept message includes the LADN information; or

Sending a configuration update message to the terminal, where the configuration update message includes the LADN information.

The above-mentioned design provides that the core network device sends the LADN information to the UE in the registration accept message or the configuration update message, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is obtained according to the obtained LADN information. The DNN corresponding to LADN.

In a possible design, before sending parameters to the terminal, it also includes:

Receiving, by the second core network device, a data network name of the LADN subscribed by the terminal.

The seventeenth aspect, based on the same inventive concept as the sixteenth aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to the first core network device, and the beneficial effect can be seen in the sixteenth aspect. The description of the aspects will not be repeated here. The device includes:

a sending module, configured to send LADN information to the terminal, where the LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and the terminal in the data network name set can be in the current registration area The service area information corresponding to the data network name of the LADN used;

And determining, by the terminal, that the first data network name is a data network name corresponding to the first LADN, according to the LADN information, when the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name, where The data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

In a possible design, the sending module is specifically configured to:

Sending a registration accept message to the terminal, where the registration accept message includes the LADN information; or

Sending a configuration update message to the terminal, where the configuration update message includes the LADN information.

In one possible design, it also includes:

The receiving module is configured to receive, before the sending module sends the LADN information to the terminal, a data network name of the LADN subscribed by the terminal sent by the second core network device.

The eighteenth aspect, based on the same inventive concept as the fourth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effect can be seen in the sixteenth aspect. The description of this is not repeated here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the sixteenth aspect or the sixteenth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible aspects of the sixteenth aspect or the sixteenth aspect. The apparatus can also include a communication interface for the first core network device to communicate with other devices. Illustratively, the other device can be a terminal or other core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to perform sending LADN information to the terminal. Specifically, the processor sends the LADN information to the terminal by using the communication interface. The LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and a service area corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set. information;

And determining, by the terminal, that the first data network name is a data network name corresponding to the first LADN, according to the LADN information, when the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name, where The data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

In a possible design, the processor is specifically configured to:

Sending a registration accept message to the terminal, where the registration accept message includes the LADN information; or

Sending a configuration update message to the terminal, where the configuration update message includes the LADN information.

In a possible design, the processor is further configured to: before sending the LADN information to the terminal, receive a data network name of the LADN of the terminal subscription sent by the second core network device.

In a nineteenth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a terminal, including: acquiring first information, where the first information includes a first data network name and a first Instructing, the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or the first information includes a first data network name, where the first data network name includes a second indication, where the second indication is used to indicate that the data network indicated by the first data network name is the LADN; and determining, according to the first information, that the first data network name is a data network corresponding to the LADN name.

After the UE is matched to a DNN according to the URSP, the UE can directly learn whether the DNN is a DNN corresponding to the LADN according to the first information acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area.

In a possible design, the obtaining the first information includes:

Receiving a policy sent by the first core network device, where the policy includes the first information; or,

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

The manner of obtaining the first information is provided by the foregoing design, so that the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained first information.

In a possible design, when it is determined that the data network indicated by the first data network name is the LADN according to the first information, the method further includes:

When it is determined that the terminal is located in the service area of the LADN, the operation of the protocol data unit PDU session corresponding to the first data network name is initiated.

The service area that determines that the terminal is located in the LADN may determine, according to the first LADN information, whether the terminal is located in a service area of the LADN. The first LADN information includes a data network name of the LADN that the terminal can use in the current registration area, and corresponding service area information.

Specifically, determining that the terminal is located in a service area of the LADN is determined by:

The terminal saves the first LADN information, where the first LADN information includes the first data network name and the corresponding service area information, and determines, according to the first LADN information, that the terminal is located in the first data network name. Service Area.

In a possible design, when it is determined that the data network indicated by the first data network name is the LADN according to the first information, the method further includes:

Determining, when the terminal is located outside the service area of the data network indicated by the first data network name, or when the terminal does not save the service area information of the LADN, not starting the PDU corresponding to the first data network name The operation of the session.

Determining that the terminal is located outside a service area of the data network indicated by the first data network name may be determined as follows:

The first LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name; or

The terminal does not save the first LADN information; or,

The first LADN information includes the first data network name and the service area information corresponding to the first data network name, but determines, according to the first LADN information, that the terminal is located in the first data network name. Outside the service area.

In one possible design, the operation of the PDU session for the first data network name includes any of the following: establishing the PDU session; or modifying the PDU session; or, activating the user of the PDU session Face connection.

In a possible design, when the operation of initiating the PDU session corresponding to the first data network name is an operation of establishing a PDU session of the first data network name, the method further includes: saving the second information, where The second information is used to indicate that the first data network name corresponding to the PDU session is a data network name of the LADN. By saving the second information for subsequent use.

In a possible design, when the operation of initiating the PDU session is to modify the PDU session or activate a user plane connection of the PDU session, the method further includes: determining the PDU session according to the second information. The corresponding first data network name is a data network name of the LADN.

In a possible design, after determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, the method further includes:

When it is determined that the terminal is located in the service area of the LADN, an operation of modifying the PDU session or activating a user plane connection of the PDU session is initiated.

In a possible design, after determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, the method further includes:

When it is determined that the terminal is located outside the service area of the LADN, or when determining that the terminal does not save the service area information of the LADN, does not initiate an operation of modifying the PDU session or activating a user plane connection of the PDU session. .

With the above design, after the UE establishes the LADN PDU session, the DNN corresponding to the PDU is saved as the DNN corresponding to the LADN, so that when the session is modified or the user plane connection is activated again, the PDU can be directly determined according to the saved information. The corresponding DNN is the DNN corresponding to the LADN, thereby determining again whether to initiate the process of establishing/modifying/activating the session.

The twentieth aspect, based on the same inventive concept as the nineteenth aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the description of the nineteenth aspect. I won't go into details here. The device includes:

Obtaining a module, configured to obtain first information;

The first information includes a first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

And a determining module, configured to determine, according to the first information, that the data network indicated by the first data network name is the LADN.

In a possible design, the obtaining module is specifically configured to:

Receiving a policy sent by the first core network device, where the policy includes the first information; or,

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

In one possible design, the device further includes:

a first initiating module, configured to: after determining that the data network indicated by the first data network name is the LADN according to the first information, determining that the terminal is located in a service area of the LADN, initiating the first The operation of the protocol data unit PDU session corresponding to the data network name.

In one possible design, the device further includes:

a second initiating module, configured to determine, after determining that the data network indicated by the first data network name is the LADN according to the first information, that the terminal is located in a data network indicated by the first data network name When the area is out of the area, or when the terminal does not save the service area information of the LADN, the operation of the PDU session corresponding to the first data network name is not initiated.

In one possible design, the operation of initiating a PDU session of the first data network name includes any of the following:

Establishing the PDU session; or,

Modifying the PDU session; or,

Activate the user plane connection of the PDU session.

In a possible design, when the operation of initiating the PDU session corresponding to the first data network name is an operation of establishing a PDU session of the first data network name, the apparatus further includes:

The saving module is configured to save the second information, where the second information is used to indicate that the data network indicated by the first data network name corresponding to the PDU session is the LADN.

In a possible design, when the operation of initiating the PDU session is to modify the PDU session or activate a user plane connection of the PDU session, the determining module is further configured to:

Determining, according to the second information, a data network indicated by the first data network name corresponding to the PDU session as the LADN.

In one possible design, the device further includes:

a third initiating module, configured to determine, after the determining module determines, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, determining that the terminal is located in the LADN The service area initiates an operation of modifying the PDU session or activating a user plane connection of the PDU session.

In one possible design, the device further includes:

a fourth initiating module, configured to determine, after the determining module determines, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, determining that the terminal is located in the LADN When the service area is outside or when the terminal does not save the service area information of the LADN, the operation of modifying the PDU session or activating the user plane connection of the PDU session is not initiated.

The twenty-first aspect, based on the same inventive concept as the nineteenth aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the description of the nineteenth aspect. I will not repeat them here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the nineteenth aspect or the nineteenth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the nineteenth or nineteenth aspects of the above-described possible design. The apparatus can also include a communication interface for the terminal to communicate with other devices. Illustratively, the other device is a core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to perform acquiring the first information. Specifically, the processor acquires the first information by using the communication interface. The first information includes a first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or the first information The first data network name includes a second indication, where the second indication is used to indicate that the data network indicated by the first data network name is the LADN, and is determined according to the first information. The data network indicated by the first data network name is the LADN.

In a possible design, when the processor acquires the first information, the processor is specifically configured to:

Receiving a policy from the first core network device, where the policy includes the first information; or,

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

In a possible design, the processor is further configured to: when determining, according to the first information, that the data network indicated by the first data network name is the LADN, and determining that the terminal is located in the When the service area of the LADN is used, the operation of the protocol data unit PDU session corresponding to the first data network name is initiated.

In a possible design, the processor is further configured to: when determining, according to the first information, that the data network indicated by the first data network name is the LADN, and determining that the terminal is located in the first When the data area indicated by the data network name is outside the service area, or when the terminal does not save the service area information of the LADN, the operation of the PDU session corresponding to the first data network name is not initiated.

In one possible design, the operation of initiating a PDU session of the first data network name is any of the following:

Establishing the PDU session; or,

Modifying the PDU session; or,

Activate the user plane connection of the PDU session.

In a possible design, when the operation of initiating the PDU session corresponding to the first data network name is an operation of establishing a PDU session of the first data network name, the processor is further configured to:

And saving the second information to the memory, where the second information is used to indicate that the data network indicated by the first data network name corresponding to the PDU session is the LADN.

In a possible design, when the operation of initiating the PDU session is to modify the PDU session or activate a user plane connection of the PDU session, the processor is further configured to determine the PDU according to the second information. The data network indicated by the first data network name corresponding to the session is the LADN.

In a possible design, after determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, the processor is further configured to determine the terminal. When located in the service area of the LADN, an operation of modifying the PDU session or activating a user plane connection of the PDU session is initiated.

In a possible design, after determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session is the LADN, the processor is further configured to determine that the terminal is located. When the service area of the LADN is not outside, or when it is determined that the terminal does not save the service area information of the LADN, the operation of modifying the PDU session or activating the user plane connection of the PDU session is not initiated.

A twenty-second aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a first core network device, including: sending first information to a terminal; Determining, by the terminal, that the data network indicated by the first data network name is a local data network (LADN), wherein the first information includes the first data network name and a first indication, and the first indication is used to indicate the first data The data network indicated by the network name is the LADN; or the first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate the The data network indicated by a data network name is the LADN.

With the above solution, the core network device sends the first information to the UE, so that the UE can directly determine whether the DNN is the DNN corresponding to the LADN according to the first information acquired by the UE, and then determine whether to perform the check. Whether the UE is in the action of the LADN service area.

In one possible design, the first information is sent to the terminal, including:

Sending a policy to the terminal, where the policy includes the first information.

The above-mentioned design provides that the core network device sends the first information to the UE in the policy, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained policy.

In a possible design, before the sending the first information to the terminal, the method further includes:

Receiving second information sent by the second core network device;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or the second The information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

After the second core network device receives the second information sent by the second core network device, the first core network device determines, according to the second information, that the first information is sent to the UE.

The twenty-third aspect, based on the same inventive concept as the twenty-second aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effect can be seen in the The description of the twenty-two aspects will not be repeated here. The device includes:

a sending module, configured to send first information to the terminal; the first information is used by the terminal to determine that the data network indicated by the first data network name is a local data network LADN;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a possible design, the sending module is specifically configured to:

Sending a policy to the terminal, where the policy includes the first information.

In one possible design, the device further includes:

a receiving module, configured to receive second information sent by the second core network device before the sending module sends the first information to the terminal;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The second information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

The twenty-fourth aspect, based on the same inventive concept as the twenty-second aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effect can be referred to The description of the twenty-two aspects will not be repeated here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the twenty-second aspect or the twenty-second aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible design aspects of the twenty-second aspect or the twenty-second aspect. The apparatus can also include a communication interface for the first core network device to communicate with other devices. Illustratively, the other device can be a terminal or other core network device.

Specifically, the memory is configured to store program instructions;

The processor is configured to invoke and execute the program instruction stored in the memory, where the program instruction is specifically configured to perform sending first information to the terminal; the first information is used by the terminal to determine a first data network name The indicated data network is the local data network LADN;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a possible design, the processor is specifically configured to send a policy to the terminal, where the policy includes the first information.

In a possible design, the processor is further configured to: before sending the first information to the terminal, receive the second information sent by the second core network device;

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or the second The information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a twenty-fifth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a terminal, including: acquiring a parameter, where the parameter includes a data network name of a local data network LADN subscribed by the terminal. When the operation of the protocol data unit PDU session corresponding to the first data network name is to be initiated, determining, according to the parameter, the data network name of the first data network name as the first LADN; wherein the data network of the first LADN The name is one of the data network names of the LADNs that the terminal subscribes to.

After the UE is matched to a DNN according to the URSP, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the parameters acquired by the UE, and determine whether to perform an action of checking whether the UE is in the LADN service area.

In one possible design, the obtaining parameters include:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

The manner of obtaining the parameter is provided by the foregoing design, so that the UE can learn whether the DNN is the DNN corresponding to the LADN according to the obtained first information.

In one possible design, the obtaining parameters include:

Obtaining LADN information, the LADN information including the parameter;

The LADN information further includes the service area information of the first LADN when the registration area of the terminal includes the service area of the first LADN; that is, the LADN information further includes that the terminal is Service area information of the LADN that can be used in the current registration area. or,

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information. That is, the LADN information does not include the service area information of the LADN that the terminal cannot use in the current registration area.

In a possible design, after the parameter is included in the LADN information, after determining that the first data network name is a data network name of the first LADN, the method further includes:

When it is determined that the service area information is not included in the LADN information, the operation of the PDU session corresponding to the first data network name is not initiated; or

If the service area information is included in the LADN information, and the terminal is located outside the service area, the operation of the PDU session corresponding to the first data network name is not initiated; or

In the determining that the service area information is included in the LADN information, and the terminal is located in the service area, the operation of the PDU session corresponding to the first data network name is initiated.

In a possible design, after the parameter is not included in the LADN information, after the determining, according to the parameter, that the first data network name is a data network name of a first LADN, the method further include:

Initiating an operation of the PDU session corresponding to the first data network name when the terminal is located in a service area of the data network indicated by the first data network name; or

When the terminal is located outside the service area of the data network indicated by the first data network name, the operation of the PDU session corresponding to the first data network name is not initiated; or

When the terminal does not save the service area information of the data network indicated by the first data network name, the operation of the PDU session corresponding to the first data network name is not initiated.

The service area that determines that the terminal is located in the LADN may determine, according to the first LADN information, whether the terminal is located in a service area of the LADN. The first LADN information includes information different from the LADN information, and the first LADN information includes a data network name of the LADN that the terminal can use in the current registration area and corresponding service area information.

Specifically, determining that the terminal is located in a service area of the LADN is determined by:

The terminal saves the first LADN information, where the first LADN information includes the first data network name and the corresponding service area information, and determines, according to the first LADN information, that the terminal is located in the first data network name. Service Area.

Determining that the terminal is located outside a service area of the data network indicated by the first data network name may be determined as follows:

The first LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name; or

The terminal does not save the first LADN information; or,

The first LADN information includes the first data network name and the service area information corresponding to the first data network name, but determines, according to the first LADN information, that the terminal is located in the first data network name. Outside the service area.

In one possible design, the operation of initiating the PDU session includes any of the following:

Establishing the PDU session; or,

Modifying the PDU session; or,

Activate the user plane connection of the PDU session.

According to a twenty-sixth aspect, based on the same inventive concept as the twenty-fifth aspect, the embodiment of the present application further provides a pointing device for a local data network, where the device is applied to the terminal, and the beneficial effect can be referred to the twenty-fifth aspect. The description of this is not repeated here. The device includes: an obtaining module, configured to acquire a parameter, where the parameter includes a data network name of a local data network LADN subscribed by the terminal; and a determining module, configured to: initiate a protocol data unit PDU session corresponding to the first data network name In operation, the first data network name is determined as the data network name of the first LADN according to the parameter; wherein the data network name of the first LADN is one of the data network names of the LADN subscribed by the terminal.

In a possible design, the obtaining module is specifically configured to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

In a possible design, the obtaining module is specifically configured to:

Obtaining LADN information, the LADN information including the parameter;

Wherein, when the registration area of the terminal includes the service area of the first LADN, the LADN information further includes service area information of the first LADN; or

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information.

In one possible design, the device further includes:

The first initiating module is used to:

After the determining module determines, according to the parameter, that the first data network name is the data network name of the first LADN, when determining that the service area information is not included in the LADN information, the first data is not initiated. The operation of the PDU session corresponding to the network name; or,

After the determining module determines, according to the parameter, that the first data network name is a data network name of the first LADN, the service area information is included in the determined LADN information, and the terminal is located in the service area. When not, the operation of the PDU session corresponding to the first data network name is not initiated; or

After the determining module determines, according to the parameter, that the first data network name is a data network name of the first LADN, the service area information is included in the determined LADN information, and the terminal is located in the service area. And initiating an operation of the PDU session corresponding to the first data network name.

In one possible design, the device further includes:

a second initiating module for:

After the determining module determines, according to the parameter, that the first data network name is a data network name of the first LADN, when determining that the terminal is located in a service area of the data network indicated by the first data network name, The operation of the PDU session corresponding to the first data network name; or

After the determining module determines, according to the parameter, that the first data network name is a data network name of the first LADN, when determining that the terminal is located outside a service area of the data network indicated by the first data network name, Not initiating the operation of the PDU session corresponding to the first data network name; or

After the determining module determines, according to the parameter, that the first data network name is the data network name of the first LADN, when the terminal does not save the service area information of the data network indicated by the first data network name, The operation of the PDU session corresponding to the first data network name is not initiated.

In one possible design, the operation of initiating the PDU session includes any of the following:

Establishing the PDU session; or,

Modifying the PDU session; or,

Activate the user plane connection of the PDU session.

The twenty-seventh aspect, based on the same inventive concept as the twenty-fifth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the terminal, and the beneficial effects can be referred to the twenty-fifth aspect. The description of this is not repeated here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the twenty-fifth aspect or the twenty-fifth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible designations of the twenty-fifth aspect or the twenty-fifth aspect. The apparatus can also include a communication interface for the terminal to communicate with other devices. Illustratively, the other device is a core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to execute acquisition parameters, specifically, the processor passes the The communication interface obtains the parameter. The parameter includes a data network name of the local data network LADN subscribed by the terminal; when the processor is to initiate an operation of a protocol data unit PDU session corresponding to the first data network name, determining the first data according to the parameter The network name is the data network name of the first LADN; wherein the data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

In a possible design, when the processor acquires parameters, it is specifically used to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

In a possible design, when the processor acquires parameters, it is specifically used to:

Obtaining LADN information, the LADN information including the parameter;

Wherein, when the registration area of the terminal includes the service area of the first LADN, the LADN information further includes service area information of the first LADN; or

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information.

In a possible design, after determining, according to the parameter, that the first data network name is a data network name of the first LADN, the processor is further configured to:

When it is determined that the service area information is not included in the LADN information, the operation of the PDU session corresponding to the first data network name is not initiated; or

If the service area information is included in the LADN information, and the terminal is located outside the service area, the operation of the PDU session corresponding to the first data network name is not initiated; or

In the determining that the service area information is included in the LADN information, and the terminal is located in the service area, the operation of the PDU session corresponding to the first data network name is initiated.

In a possible design, after determining, according to the parameter, that the first data network name is a data network name of the first LADN, the processor is further configured to:

Initiating an operation of the PDU session corresponding to the first data network name when the terminal is located in a service area of the data network indicated by the first data network name; or

When the terminal is located outside the service area of the data network indicated by the first data network name, the operation of the PDU session corresponding to the first data network name is not initiated; or

When the terminal does not save the service area information of the data network indicated by the first data network name, the operation of the PDU session corresponding to the first data network name is not initiated.

In one possible design, the operation of initiating the PDU session includes any of the following:

Establishing the PDU session; or,

Modifying the PDU session; or,

Activate the user plane connection of the PDU session.

In a twenty-eighth aspect, the embodiment of the present application provides a method for indicating a local data network, where the method is applied to a first core network device, including:

Transmitting, to the terminal, a parameter, where the parameter includes a data network name of a local data network LADN subscribed by the terminal;

When the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name, determining, according to the parameter, the data network name of the first data network name as the first LADN, where The data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

Through the foregoing solution, the core network device sends the parameter to the UE, so that after the UE matches the URSP to the DNN, the UE can directly learn whether the DNN is the DNN corresponding to the LADN according to the pre-acquired parameters of the UE, and determine whether to perform the check whether the UE is in the The action of the LADN service area.

In one possible design, parameters are sent to the terminal, including:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

The above-mentioned design provides that the core network device sends the parameter to the UE in the registration accept message or the configuration update message, and does not need to occupy other resources, thereby saving resources. In addition, the UE can learn whether the DNN is LADN according to the obtained parameter. Corresponding DNN.

In one possible design, parameters are sent to the terminal, including:

Sending LADN information to the terminal, the LADN information including the parameter;

Wherein, when the registration area of the terminal includes the service area of the first LADN, the LADN information further includes service area information of the first LADN; or

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information.

In a possible design, before sending parameters to the terminal, it also includes:

And receiving, by the second core network device, a second parameter, where the second parameter includes a data network name of the LADN that the terminal subscribes to.

After the second core network device receives the second parameter sent by the second core network device, the first core network device determines that the parameter is sent to the UE according to the second parameter.

The twenty-ninth aspect, based on the same inventive concept as the twenty-eighth aspect, the embodiment of the present application provides a pointing device for a local data network, where the device is applied to the first core network device, and the beneficial effect can be referred to the second The description of the eighteenth aspect is not repeated here, and the device includes:

a sending module, configured to send a parameter to the terminal, where the parameter includes a data network name of the local data network LADN subscribed by the terminal;

When the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name, determining, according to the parameter, the data network name of the first data network name as the first LADN, where The data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

In a possible design, the sending module is specifically configured to:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

In a possible design, the sending module is specifically configured to:

Sending LADN information to the terminal, the LADN information including the parameter;

Wherein, when the registration area of the terminal includes the service area of the first LADN, the LADN information further includes service area information of the first LADN; or

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information.

In one possible design, the device further includes:

The receiving module is configured to receive, after the sending module sends the parameter to the terminal, a second parameter sent by the second core network device, where the second parameter includes a data network name of the LADN subscribed by the terminal.

The thirtieth aspect, based on the same inventive concept as the twenty-eighth aspect, the embodiment of the present application further provides a pointing device of a local data network, where the device is applied to the first core network device, and the beneficial effect can be referred to the second The description of the eighteenth aspect will not be repeated here. The apparatus comprises a processor for implementing the functions of each of the possible designs of the twenty-eighth aspect or the twenty-eighth aspect described above. The apparatus can also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can invoke and execute program instructions stored in the memory for implementing the functions of each of the possible designations of the twenty-eighth aspect or the twenty-eighth aspect. The apparatus can also include a communication interface for the first core network device to communicate with other devices. Illustratively, the other device can be a terminal or other core network device.

Specifically, the memory is configured to store program instructions, and the processor is configured to invoke and execute the program instructions stored in the memory, where the program instructions are specifically configured to perform sending parameters to the terminal, specifically, the processor The parameter is sent to the terminal through the communication interface. The parameter includes a data network name of the local data network LADN subscribed by the terminal, so that the terminal determines, according to the parameter, when the operation of the protocol data unit PDU session corresponding to the first data network name is to be initiated. The first data network name is a data network name of the first LADN, wherein the data network name of the first LADN is one of data network names of LADNs subscribed by the terminal.

In a possible design, the processor, when sending parameters to the terminal, is specifically used to:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

In a possible design, the processor, when sending parameters to the terminal, is specifically used to:

Sending LADN information to the terminal, the LADN information including the parameter;

Wherein, when the registration area of the terminal includes the service area of the first LADN, the LADN information further includes service area information of the first LADN; or

When the service area of the first LADN is not included in the registration area of the terminal, the service area information is not included in the LADN information.

In a possible design, the processor is further configured to receive a second parameter from the second core network device before the parameter is sent to the terminal, where the second parameter includes a data network name of the LADN that the terminal subscribes to.

In a thirty-first aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform the first aspect and any possible design of the first aspect thereof method.

In a thirty-second aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform any of the possible aspects of the fourth aspect and the fourth aspect thereof. method.

In a thirty-third aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform any of the possible aspects of the seventh aspect and the seventh aspect thereof. method.

In a thirty-fourth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform the tenth aspect and any of the possible designs of the tenth aspect thereof method.

In a thirty-fifth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform any of the thirteenth aspect and the thirteenth aspect thereof The method of design.

In a thirty-sixth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform any of the sixteenth aspects and the sixteenth aspect thereof. The method of design.

In a thirty-seventh aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform any of the nineteenth aspects and the nineteenth aspect thereof. The method of design.

In a thirty-eighth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform the twenty-second aspect and any of the twenty-second aspect thereof Possible design approach.

In a thirty-ninth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform the twenty-fifth aspect and any of the twenty-fifth aspects thereof Possible design approach.

In a fortieth aspect, the embodiment of the present application further provides a computer readable storage medium, including program instructions, when executed on a computer, causing the computer to perform the twenty-eighth aspect and any of the twenty-eighth aspects thereof The method of design.

In a forty-first aspect, the embodiment of the present application provides a chip system, where the chip system includes a processor, and may further include a memory for implementing the function of the terminal in the foregoing method. The chip system can be composed of chips, and can also include chips and other discrete devices.

In a forty-second aspect, the embodiment of the present application provides a chip system, where the chip system includes a processor, and further includes a memory for implementing the function of the first core network device in the foregoing method. The chip system can be composed of chips, and can also include chips and other discrete devices.

DRAWINGS

1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

2A is a schematic diagram of a LADN provided by an embodiment of the present application;

2B is a schematic diagram of a service area of an LADN sent by an AMF according to an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart of a method for indicating a LADN according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a DNN according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for indicating a LADN according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of a method for indicating a LADN according to an embodiment of the present application;

FIG. 7 is a schematic flowchart of a registration method according to an embodiment of the present application;

FIG. 8 is a schematic flowchart of a method for indicating a LADN according to an embodiment of the present disclosure;

FIG. 9 is a schematic flowchart of a registration method according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a device according to an embodiment of the present application; FIG.

Figure 11 is a schematic diagram of an apparatus according to an embodiment of the present application;

12 is a schematic diagram of a device according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a device according to an embodiment of the present application; FIG.

Figure 14 is a schematic diagram of an apparatus according to an embodiment of the present application;

Figure 15 is a schematic diagram of an apparatus according to an embodiment of the present application;

16 is a schematic diagram of a device according to an embodiment of the present application;

17 is a schematic diagram of a device according to an embodiment of the present application;

Figure 18 is a schematic diagram of an apparatus according to an embodiment of the present application;

Figure 19 is a schematic diagram of an apparatus according to an embodiment of the present application;

20 is a schematic diagram of an apparatus according to an embodiment of the present application;

FIG. 21 is a schematic diagram of a device according to an embodiment of the present application.

Detailed ways

The embodiment of the present application can be applied to a 4G (fourth generation mobile communication system) evolution system, such as a long term evolution (LTE) system, or can also be a 5G system, such as adopting a new radio access technology (new radio access technology). , New RAT) access network; cloud radio access network (CRAN) and other communication systems.

FIG. 1 is a schematic diagram showing a system architecture applicable to an embodiment of the present application.

A terminal, which may also be referred to as an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or User device, etc. In FIG. 1, the UE is taken as an example for description. The terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless communication function. A handheld device, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, an Internet of Things terminal device, such as a fire detection sensor, a smart water meter/electric meter, a factory monitoring device, and the like. In the following description of the embodiments of the present application, a UE is taken as an example.

The control plane network element (CP) may include an authentication and mobility management function (AMF), a session management function (SMF), and a software-defined network (software). Defined network, SDN) SDN controller, gateway control plane (gateway, GW-C), mobility management entity (MME) or all or part of the control function formed by the fusion of the Internet elements. The control plane network element is responsible for the mobility management and forwarding path management in the mobile network. For example, the packet forwarding policy is sent to the forwarding plane gateway (GW-U), and the GW-U is instructed to process and forward the packet according to the packet forwarding policy. Among them, AMF, responsible for UE authentication and mobility management, NAS message routing, SMF selection, etc.; SMF, responsible for session management, such as session creation, modification, deletion. UPF selection, UE IP address allocation, etc. The first core network device involved in the present application may be a control plane network element, such as an AMF or an SMF.

The AMF and the UE perform signaling or data transmission through the N1 interface, and the AMF and the access node (AN) perform signaling or data transmission through the N2 interface. The SMF and the UPF perform signaling or data transmission through the N4 interface.

The user plane function (UPF) is responsible for packet processing and forwarding. It may be a forwarding data function of a packet data network (PDN) gateway (GW), a forwarding plane function of a serving gateway (S-GW), physical or virtual forwarding such as a router or a switch. device.

The policy control function (PCF) or the policy and charging rules function (PCRF). Among them, the PCF or PCRF is responsible for policy control decisions and flow-based charging control. Subscriber data management (SDM), or home subscriber server (HSS). The user data management entity English may also correspond to User Data Management, and the abbreviation may also correspond to UDM. SDM, UDM or HSS are used to help operators achieve unified management of all user-related data. The second core network device involved in the embodiment of the present application may be a PCF or an SDM, or a UDM.

The base station may also be referred to as an access node (AN) to provide wireless access services for the terminal. The access node may be a global system for mobile communication (GSM) system or a base transceiver station (BTS) in a code division multiple access (CDMA) system, or may be a broadband code division. A base station (NodeB) in a wideband code division multiple access (WCDMA) system may also be an evolved base station (evolutional node B, eNB or eNodeB) in an LTE system, or a base station device in a future 5G network, small The present invention is not limited to the base station device, the wireless access node (WiFi AP), and the wireless interoperability for microwave access base station (WiMAX BS). The UE and the AN perform signaling or data transmission through the Uu interface. Signaling or data transmission between the AN and the UPF through the N3 interface.

In addition, the system architecture may also include a network application function (AF), an SDM, and a data network (DN), as shown in FIG. 1. The DN provides a data transmission service for the user, and may be a PDN network, such as the Internet (Internet), IP multi-media service (IMS), etc., and the DN and the UPF perform signaling or data transmission through the N6 interface.

AF, mainly performs dynamic policy/billing control on forwarding plane behavior. These services require dynamic policy and charging control. The AF transmits the dynamic session information required by the PCF, and receives the IP-CAN access network (IP-CAN) specific information and the IP-CAN bearer layer event confirmation.

Hereinafter, some of the terms in the present application will be explained to be understood by those skilled in the art.

1) Data network name

The data network name involved in the embodiment of the present application may be a data network name (DNN) or an access point name (APN), and no specific distinction is made between the DNN and the APN. The description of the embodiment of the present application is made by using the network name as the DNN as an example. For the implementation of the APN, refer to the description of the DNN-based implementation in the embodiment of the present application, and details are not described herein.

It should be noted that the plurality of items referred to in the present application mean two or more. In the meantime, it should be understood that although the terms first, second, etc. may be used to describe various information and network names in the embodiments of the present application, such information and network names should not be limited to these terms. These terms are only used to distinguish one element from another.

2) UE Route Selection Policy (URSP):

The URSP is used by the UE to determine whether the triggered application can associate a PDU session that the terminal has established or newly establish a PDU session.

In 5G, the establishment of a PDU session is triggered by an application. Different applications have different requirements for PDU session attributes, such as network slice, DNN, and session and service continuity mode (SSC mode). Wait. Different applications may trigger the establishment of different PDU sessions. Therefore, 5G introduces URSP for the UE to determine whether data corresponding to one application can be associated with an existing PDU session transmission, or whether a new PDU session can be transmitted for transmission.

For an application, after matching the URSP, the corresponding PDU session parameters can be obtained. If there is a PDU session that satisfies the parameter requirement, the application is associated with the PDU session, and if there is no PDU session that meets the requirement, a new PDU session is created.

The following information can be included in the URSP:

Policy priority

Traffic descriptor:

Application identifier;

Internet Protocol (IP) descriptor;

Non-IP (non-IP) descriptor;

Route selection descriptor:

SSC mode selection;

Network slice selection;

DNN selection;

Non-seamless offload indication for indicating whether to offload to the 3rd Generation Partnership Project (3GPP);

Access type preference, used to indicate the use of 3GPP or non-3GPP.

3) LADN

The concept of LADN was introduced in 5G. The UE can access the local data network only in a specific area, and the specific area, that is, the service area of the LADN. The establishment of the PDU session in 5G is application-based. Therefore, for the application applicable to the LADN, the UE can establish and use the PDU session of the data network as the LADN only when it is located in the LADN SA. For example, as shown in FIG. 2A, RA1 to RA3 are three registration areas of the network, including a total of 12 tracking areas (TAs) of TA1 to TA12, and TA1 to TA5 support LADN, that is, LADN SA is TA1 to TA5. , that is, LADN can be distributed across the registration area. It should be noted that, in the present invention, the LADN SA is exemplified by the TA granularity, but does not limit the use of other granularities to characterize LADN SA, such as cell granularity and the like. In combination with the service area of the LADN, the service area corresponding to the data network or the data network name mentioned in the present invention refers to the establishment, modification, and deletion of the PDU session in which the DNN is the name of the data network, when the UE is in the corresponding service area. Or the activation of the user plane connection.

For distinguishing, the LADN information configured in the prior art to the UE is referred to as first LADN information. The first LADN information configured to the UE in the prior art includes the data network name of the LADN that the UE can use in the current registration area and its corresponding service area information. It should be noted that when the LADN data can be used. When there are a plurality of service area information corresponding to the network name and the data network name of the LADN, the first LADN information includes a data network name of the plurality of LADNs that can be used and a set of service area information corresponding to the data network name of each LADN. The first LADN information is configured by the AMF according to the local configuration of the LADN, the location of the UE, and the network name of the LADN that the UE subscribes to. The local configuration of the LADN on the AMF can be configured to the AMF through the Operation Administration and Maintenance (OAM). The network name and service area information of the LADN in the first LADN appear in pairs.

For example, the DNN of the LADN that the UE subscribes to includes DNN1, DNN2, and DNN3. The network name of the LADN that the UE can use in the current registration area includes DNN1 and DNN2. For the DNN3, the service area corresponding to the DNN3 is not configured in the registration area of the UE or the LADN of the DNN3 is not configured on the AMF, so that the UE cannot be used in the current registration area, so that the first LADN information does not include the DNN3 and the corresponding service area information. . The first LADN information includes the following: DNN1, service area information corresponding to DNN1; service area information corresponding to DNN2 and DNN2; specifically, it can be expressed in the following format: first LADN information {[DNN1, DNN1-Service Area], [DNN2, DNN2-Service Area]}. It should be noted that if the UE does not use the three LADNs corresponding to DNN1, DNN2, and DDN3 in the current registration area, the first LADN information does not include any content, and accordingly, the UE does not receive the first LADN information.

It can be understood that the LADN that the UE can use means that the UE can initiate a PDU session accessing the LADN (that is, the data network indicated by the DNN corresponding to the PDU session is the LADN) as long as the UE is located in the service area corresponding to the LADN. A request to establish/modify/delete/user-side connection activation to receive the service provided by the LADN.

Determining a LADN for a LADN that a UE can use requires all of the following conditions:

Condition 1. The UE signs the LADN, that is, the UE has the subscription data using the LADN;

Condition 2: The LADN and its corresponding LADN service area are configured on the AMF, that is, the AMF supports the LADN;

Condition 3: The registration area of the UE includes the service area of the LADN, that is, the UE registration area and the LADN service area have an intersection.

For the purpose of distinguishing, the service area of the LADN configured on the AMF is referred to as a first service area, and the service area of the LADN sent by the AMF to the UE is referred to as a second service area, where the second service area is a registration area of the UE and The intersection of a service area.

Specifically, the network side PCF or the UDM configures the DNN of the LADN that the UE subscribes to the AMF, and the AMF configures the first LADN information for the UE according to the local configuration of the LADN, the location of the UE, and the DNN of the LADN that the UE subscribes to. The first LADN information is configured, and the AMF sends only the DNN of the LADN that the UE can use in the registration area and the second service area corresponding to the DNN to the UE as the first LADN information. That is, the first LADN information includes the DNN of the LADN and the second service area information. As shown in FIG. 2B, an LADN is configured in the AMF as an example to become the first LADN. The LADN is the LADN of the UE subscription, and the first service area includes a total of five TAs of TA1-TA5. When the terminal is located at RA1, the second service area received is 4 TAs of TA1-TA4, and when the terminal is at RA2, the second service area received is only TA5. When the terminal is located at RA3, there is no second service. The area (the RA3 has no intersection with the first service area), so the LADN cannot be used by the UE on the RA3, and the AMF does not configure the first LADN information for the UE.

It should be noted that if the AMF is configured with two LADNs, it is called the first LADN and the second LADN. When the terminal is located in RA3, if the second LADN is the LADN that the terminal can use, the AMF will configure the UE. The first LADN information, but the first LADN information includes only the DNN corresponding to the first LADN and the second service area corresponding to the first LADN.

The UE is located in the registration area RA3, and needs to initiate the modification, modification, deletion, and activation of the user plane connection of the PDU session. If the DNN associated with the PDU session is the DNN of the first LADN, since there is no LADN service area in the RA3, Therefore, the AMF does not configure any LADN information for the UE before, that is, the UE does not have the first LADN information. Therefore, the UE cannot determine that the DNN associated with the PDU session is the DNN of the LADN, and therefore does not determine whether it is located in the corresponding second service area, but directly initiates the flow of the PDU session (the process of establishing, activating, or modifying the PDU session). Since the data network indicated by the DNN associated with the PDU session is the LADN, and the UE is located outside the first service area or the second service area, the network side may reject the related request of the UE, which may result in waste of signaling resources.

Based on this, the embodiment of the present application provides a method and a device for indicating a local data network, which are used to solve the problem of waste of signaling resources. The method and the device are based on the same inventive concept. Since the method and the device solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

In order to solve the problem of waste of signaling resources, the following embodiments are provided in the following embodiments:

The first possible way is: if the data network indicated by a certain DNN is the LADN, when the DNN is configured to the UE, the indication information indicating that the DNN is the LADN is allocated to the UE. The specific description will be made by the following first embodiment.

The second possible way is to configure the DNNs of all the LADNs that the UE subscribes to to the UE. The specific description will be made by the following embodiment 2.

A third possible way is to propose a new way of configuring LADN information. For convenience of description, the LADN information configured in this manner is referred to as second LADN information. The specific description will be made by the following third embodiment.

The second LADN information includes a DNN set of LADNs subscribed by the UE, and service area information (second service area) corresponding to the network name of the LADN that the UE can use in the current registration area in the DNN set. The service area information corresponding to the DNN of the LADN that the UE cannot use in the DNN set is not included in the second LADN information. It should be noted that, in the embodiment of the present application, determining that a LADN is a LADN that cannot be used by the UE needs to meet the following conditions:

The UE does not sign the LADN, that is, the UE does not use the subscription data of the LADN;

The LADN and its corresponding LADN service area are not configured on the AMF, that is, the AMF does not support the LADN;

The registration area of the UE does not include the LADN service area, that is, the terminal registration area does not intersect with the LADN service area.

The above three modes provided by the embodiments of the present application are specifically described below with reference to the accompanying drawings.

Embodiment 1:

Referring to Figure 3, the first possible way is specifically described.

The data network indicated by a certain DNN is the LADN. When the DNN is configured to the UE, the indication information indicating that the data network corresponding to the DNN is the LADN is allocated to the UE.

It should be noted that the data network indicated by a DNN is LADN, and the technical network can be understood as the data network identified by the DNN as the LADN, or it can be understood that the DNN is a DNN corresponding to the LADN. . In the present invention, no technical specific distinction is made between the two description modes.

Configuration methods can include:

1) Pre-configured in the UE, for example, when the UE subscribes to the LADN, the DNN and the indication information are configured in a universal subscriber identity module (USIM) or a universal integrated circuit card (UICC).

2) Configured by the configuration device to the UE, for example, configured to the UE by means of an over-the-air (OTA) technology and an open mobile alliance-device management (OMA-DM).

3) The DNN is carried by the first core network device in the policy configured for the UE and the data network indicated by the DNN is the indication information of the LADN. For example, the policy is configured by a core network device such as UDM, PCF, MME, AMF, or SMF, and is sent to the UE through signaling.

S301. The UE acquires the first information.

The first information includes a first DNN and a first indication, where the first indication is used to indicate that the data network indicated by the first DNN is a LADN; or

The first information includes a first DNN, the first DNN includes a second indication, and the second indication is used to indicate that the data network indicated by the first DNN is the LADN.

It can be understood that the data network indicated by the first DNN is LADN, and it can be understood that the data network identified by the first DNN is LADN. That is, the first indication is used to indicate that the data network identified by the first DNN is a LADN. The DNN corresponding to the LADN can be understood as the DNN of the LADN. It should be noted that the implementation manner of the first indication may include the following implementation manners:

The first indication is an independent parameter or a sub-parameter in a parameter, and may also be an indication bit.

The first indication may indicate whether the indicated data network is a LADN by using a value of 0 or 1, and a value of 0 indicates that the first DNN is not a DNN corresponding to the LADN; and a value of 1 indicates that the first DNN is a DNN corresponding to the LADN. . Or vice versa. Of course, other values may also be used to indicate whether the data network indicated by the first DNN is a LADN.

When the first indication is an independent parameter or a sub-parameter in a parameter, when the first DNN is the DNN corresponding to the LADN, the first information includes the first indication; when the first DNN is not the DNN corresponding to the LADN, the first information is not Includes the first indication.

The implementation of the second indication may include the following implementations:

An indicator bit is added to the structure of the first DNN, which may take a value of 0 or 1. When the value is 0, the first DNN is not the DNN corresponding to the LADN; when the value is 1, the first DNN is the DNN corresponding to the LADN. Or vice versa. The indicator bit can be added to the head, tail or any position in the DNN structure. The specific position of the indicator bit in the DNN structure is not limited by the present invention.

After the UE determines that the application matches the first DNN according to the URSP, the UE determines whether the data network indicated by the first DNN is a LADN according to the first information.

When the UE determines that the PDU session needs to be modified or activated, it is determined that the PDU session corresponds to the first DNN, and whether the data network indicated by the first DNN is the LADN is determined according to the first information.

It should be noted that: the PDU session corresponds to the first DNN, and can be understood as the DNN parameter of the PDN session is the first DNN; or the DNN used by the PDU session is the first DNN; or the PDU session is the providing terminal and the first The connection between the DNNs; or the PDN session is access to the first DNN.

S302. The UE determines, according to the first information, that the data network indicated by the first DNN is the LADN.

It is to be understood that the UE determines, according to the first information, that the data network indicated by the first DNN is the LADN, and that the UE determines that the data network of the first DNN identifier is determined by the UE according to the first information. Said LADN.

Optionally, the method may further include:

S303. The UE determines that the first LADN information includes the first DNN and its corresponding service area information.

The first LADN information includes a DNN corresponding to the LADN and a second service area information corresponding to the DNN corresponding to the LADN that the UE can use in the current registration area.

S304. The UE determines, according to the first LADN information, an operation of initiating a PDU session corresponding to the first DNN when the UE is located in a service area corresponding to the first DNN. It should be noted that the UE is located in the service area corresponding to the first DNN, and the UE stores the first LADN information, and the TA where the current location of the UE belongs belongs to the service area corresponding to the first LADN in the first LADN information.

The initiating the PDU session corresponding to the first DNN may include: establishing the PDU session, or modifying the PDU session, or activating a user plane connection of the PDU session.

It should be noted that the UE is located in the service area corresponding to the first DNN, and the location of the UE (the TA where the UE is located) is included in the service area corresponding to the first DNN.

Specifically, the operation of initiating the PDU session corresponding to the first DNN may be a request message for sending a PDU session establishment/modification/activation to the first core network device, where the network name corresponding to the PDU session is the first DNN.

If the PDU session is established or modified, the first core network device is an SMF, that is, the UE sends a request message for establishing or modifying or deleting the PDU session to the SMF through the AMF; if the PDU session is activated (the user plane connection of the PDU session is activated), Then, the first core network device is an AMF, that is, the UE sends a request message to the AMF to activate the user plane connection of the PDU session. It should be noted that the term "activation" as used in the present invention refers to activating its user plane connection (the wireless connection between the UE and the AN and the N3 connection between the AN and the UPF for the already established PDU session. In addition, the UE The message sent to the core network device is sent to the core network device by the AN node. The message sent by the UE to the SMF is sent to the AMF by the AMF and then forwarded to the SMF by the AMF. See FIG. 3, step S304 in FIG. The operation of initiating the PDU session corresponding to the first DNN is used as an example to send a request message for establishing a PDU session to the SMF through the AN and the AMF.

If the UE triggers an application and performs steps S302-S304, if the UE determines that there is no PDU session corresponding to the first DNN, the UE sends a request for establishing the PDU session corresponding to the first DNN to the SMF through the AN and the AMF. Message (PDU Session Establishment Request). If the UE triggers the establishment of a user plane connection (the connection between the UE and the AN and the connection between the AN and the UPF) of the PDU session, the service request message (Service Request) is sent to the AMF through the AN. If the UE triggers the modification of the PDU session, after performing steps S302-S304, the PDU Session Establishment Request is sent to the SMF through the AN and the AMF. If the UE triggers the deletion (release) of the PDU session, after performing steps S302-S304, the request message for deleting (releasing) the PDU session (PDU Session Release Request) is sent to the SMF through the AN and the AMF.

The UE obtains the first information, which can be implemented in the following manners:

The first mode: the UE may obtain the first information from information pre-configured in the UE.

The second mode: the UE receives the configuration information of the UE, where the configuration information includes the first information.

The third mode: the UE receives the first core network device, such as the AMF or the PCF, and sends the policy, where the policy carries the first information. The strategy can be URSP. If the data network indicated by the DNN included in the URSP is the LADN, the first indication is added in the URSP, or the indication bit is added in the DNN included in the URSP, and the indication bit includes the second indication.

E.g:

The following information can be included in the URSP:

Policy priority

Traffic descriptor:

Application identifier

Network protocol descriptor;

non-IP descriptor;

Route selection descriptor:

SSC mode selection;

Network slice selection;

DNN selection: including DNN, and first indication;

Non-seamless offload indication;

Access type preference.

For example, referring to FIG. 4, an indication bit for indicating LADN is added to the structure of the DNN. It should be noted that the indicator bit can be added to the head, tail or any position in the middle of the DNN structure. The LADN in Fig. 4 is an indication bit for indicating the LAND.

The second method in the implementation manner of the first information is obtained by the UE. Specifically, before the step S301, the method further includes:

S301a. The AMF sends the first information to the UE.

Optionally, before S301a, the method may include:

S301b: Receive third information sent by the PCF or the SDM. Specifically, the PCF or the SDM may carry the third information in a policy or a subscription service, such as a policy request service response, such as an Npcf_AMF policy control_GET response, or a registration request service response, such as a Nudm_SDM_GET response.

The second information may include the first DNN and a third indication, where the third indication is used to indicate that the data network indicated by the first DNN is the LADN; or the second information includes The first DNN includes a fourth indication, where the fourth indication is used to indicate that the data network indicated by the first DNN is the LADN.

Optionally, in step S302, after determining, according to the first information, that the data network indicated by the first DNN is the LADN, and determining that the UE does not save the first LADN information, the UE does not send the information to the SMF. The PDU session establishment/modification/deletion/request message does not send a request message for activating the user plane connection to the AMF. It can be understood that the UE does not save the first LADN information, and the UE may determine that the current location is outside the service area corresponding to the first DNN.

It should be noted that the UE does not send a PDU session establishment/modification/deletion/request message to the core network device (AMF/SMF), which can be understood as a process in which the UE cannot initiate a PDU session establishment/modification/deletion/activation of the user plane connection. Or it can be understood as the process (or process) in which the UE terminates the establishment/modification/deletion/activation of the user plane connection of the current PDU session.

Optionally, after determining, according to the first information, that the data network indicated by the first DNN is the LADN, the UE determines, according to the first LADN information, that the UE is located in the first DNN. Outside the service area, the request message for the PDU session establishment/modification/activation is not sent to the SMF.

The determining, according to the first LADN information, that the UE is located outside the service area of the data network indicated by the first DNN, may be implemented as follows:

If it is determined that the first LADN information does not include at least one of the first DNN and the service area information corresponding to the first DNN, determining that the UE is located in a service of the data network indicated by the first DNN If the first LADN information is determined to include the service area information corresponding to the first DNN and the first DNN, but the UE is located according to the service area information corresponding to the first DNN. Outside the service area of the data network indicated by the first DNN.

As shown in FIG. 5, optionally, in step S304, the UE determines, according to the first LADN information, that the UE is located in a service area corresponding to the first DNN, and sends a request message for establishing the PDU session to the AMF. Thereafter, the method may further include:

S305. The UE saves the second information, where the second information is used to indicate that the data network indicated by the DNN corresponding to the PDU session is the LADN.

Therefore, after the saving of the second information, if it is determined that the PDU session needs to be modified or activated, the method may further include:

S306. The UE determines, according to the second information, that the data network indicated by the DNN corresponding to the PDU session to be modified/activated is the LADN. That is, it is determined that the PDU session to be modified/activated is a PDU session of the LADN.

S307. The UE determines that the first LADN information includes service area information corresponding to the LADN.

S308. The UE, according to the service area information, determines that the UE is located in the service area of the LADN, and sends a request message for activating (or modifying) a PDU session to the first core network device. Specifically, the service request message for activating the user plane connection of the PDU session is sent to the AMF or the PDU session modification request message for modifying the PDU is sent to the SMF through the AMF. In S308, a request message for activating the PDU session is sent by the UE to the AMF as an example.

Optionally, when determining that the LADN information does not include the service area information of the LADN, the UE does not send a service request message for activating the user plane connection of the PDU session to the AMF, and does not send a modification/delete to the SMF. a PDU session modification request message of the PDU; or, when the UE determines that the first LADN information is not saved, the service request message for activating the user plane connection of the PDU session is not sent to the AMF, nor is the The SMF sends a PDU Session Modification Request message that modifies the PDU.

After the UE is matched to a DNN according to the URSP, the UE can directly determine whether the data network indicated by the DNN is a LADN according to the configuration information of the UE or the URSP, thereby determining whether to perform checking whether the UE is in the LADN service area. action. In addition, after the UE establishes the LADN PDU session, the data network indicated by the DNN corresponding to the PDU is saved as the LADN information, so that when the session is modified or the user plane connection is activated again, the PDU corresponding to the saved information may be directly determined according to the saved information. The data network indicated by the DNN is the LADN, thereby again determining whether to initiate the process of establishing/modifying/activating the session.

Embodiment 2:

Referring to Figure 6, the second possible way is specifically described.

The second possible way is to configure the DNNs corresponding to all the LADNs that the UE subscribes to to the UE.

The configuration manner is the same as that in the first embodiment, and may include:

1) Pre-configured in the UE. For example, when the UE subscribes to one or more LADNs, the DNN of the one or more LADNs is configured in a universal subscriber identity module (USIM) or a universal integrated circuit card (UICC).

2) Configured by the configuration device to the UE, for example, configured by the UDM or PCF to the UE. For example, it is configured to the UE by means of OTA technology, OMA-DM, and the like.

3) Configured by the first core network device to the UE in the process of registering with the UE to the network side. For example, the parameters of the DNN corresponding to all LADNs that are subscribed by the UE are configured by the core network device such as the UDM, the PCF, the MME, the AMF, or the SMF, and are sent to the UE by using signaling.

Specifically, the indication method of the LADN includes:

S601. The UE acquires a parameter, where the parameter includes a DNN set of the local data network LADN that the UE subscribes to.

It should be noted that if the DNN of the LADN subscribed by the UE is one, the DNN set includes one DNN, and if the DNN of the LADN of the UE subscription is multiple, the DNN set includes multiple DNNs. That is, UE Subscribed LADN{LADN1, LADN2,...}

S602. The UE determines the first DNN.

It should be noted that the UE determines that the first DNN can be based on the URSP, that is, after the UE triggers an application, the UE determines that the application matches a certain rule in the URSP according to the URSP, and the rule includes the first DNN. Alternatively, when the terminal determines that a PDU session is to be established, the DNN corresponding to the PDU session is the first DNN, and the specific method for determining the first DNN is not limited.

S603. The UE determines that the DNN set includes the first DNN.

It can be understood that, when the UE determines that the DNN set includes the first DNN, the UE determines that the data network indicated by the first DNN is the LADN, and further, the UE determines whether it is located within the service area corresponding to the first DNN. When the UE determines that the DNN set does not include the first DNN, the UE determines that the first DNN is not the DNN corresponding to the LADN, that is, the data network indicated by the first DNN is a non-LADN. If the first DNN is not the DNN corresponding to the LADN, the UE does not need to perform the determination whether it is located within the service area corresponding to the first DNN, that is, before initiating a request message for establishing, modifying, deleting or activating the user plane connection to the core network device. There is no need to judge that the UE is within the service area corresponding to the first DNN.

S604. The UE determines whether the UE is in a service area of the first data network. If yes, execute S605, and if not, execute S606. The first data network is a data network indicated by the first DNN.

When determining whether the UE is located in a service area of the first data network, whether the UE is in the service area of the first data network may be determined according to the first LADN information.

The first LADN information includes a network name of the LADN that the UE can use in the current registration area, and corresponding service area information.

The UE determines that the UE is in the service area of the first data network, and the UE sends a request message for establishing/modifying/activating the user plane connection/delete PDU session to the first core network device, if the UE determines that the UE is in the first data. Outside the service area of the network, the UE does not send a request message to establish/modify/activate the user plane connection/delete PDU session to the first core network device.

If the PDU session is established or modified, the first core network device is an SMF, that is, the UE sends a request message for establishing or modifying or deleting the PDU session to the SMF through the AMF; if the PDU session is activated (the user plane connection of the PDU session is activated), Then, the first core network device is an AMF, that is, the UE sends a request message to the AMF to activate the user plane connection of the PDU session. Both S605 and S606 have established a PDU session as an example. The following is an example of establishing a PDU session. For the implementation of other operations, refer to the implementation manner for establishing a PDU session.

S605. The UE sends a request message for establishing a PDU session to the SMF.

The PDU session corresponds to the first DNN.

S606. The UE does not send a request message for establishing a PDU session to the SMF.

Optionally, the determining, by the UE, whether the UE is in a service area of the first data network according to the first LADN information may be implemented by:

Determining, by the UE, the first DDN information and the corresponding service area information, and determining, according to the service area information corresponding to the first DNN, whether the UE is located in a service area of the first data network; or ,

If the UE determines that the first LADN information does not include at least one of the first DNN and the service area information corresponding to the first DNN, determining that the UE is not in the service area of the first data network.

Optionally, after the UE determines that the DNN set includes the first DNN, if the UE determines that the first LADN information is not saved, determining that the UE is located outside the service area of the first LADN, A request message to establish/modify/activate a PDU session is sent to the SMF.

For the configuration of the parameters, you can use the following methods: For details about how to configure the parameters, see the description of the configuration.

The first way: the UE can obtain the parameter from the information pre-configured in the UE.

The second mode: the UE receives the configuration information of the UE, and the configuration information includes the parameter.

The third mode is: receiving a registration accept message sent by the AMF, the registration accept message includes the parameter; or receiving a configuration update message sent by the AMF, where the configuration update message includes the parameter.

Referring to FIG. 7 , a schematic flowchart of a third mode in the implementation manner of acquiring parameters for the UE is used as an example to include the parameter in the registration accept message.

S701. The UE sends a registration request message to the AMF through the AN.

S702. After receiving the registration request message, the AMF sends a registration request service, such as Nudm-UECM_registration, to the UDM.

S703. The UDM sends a registration request service response to the AMF, for example, Nudm_SDM_GET, and the Nudm_SDM_GET includes the DNN of the LADN to which the UE subscribes. The DNN of the LADN that the UE subscribes to may be one or multiple.

S704, the AMF sends a policy request service to the PCF, for example, Npcf_AMF policy control_GET,

S705. The PCF sends a policy request service response to the AMF, for example, Npcf_AMF policy control_GET response.

S706. The AMF sends a registration accept message to the UE. The registration accept message includes a DNN corresponding to the LADN of the UE subscription. Optionally, the first LAND information may also be included in the registration accept message.

With the solution provided by the second embodiment, after the UE matches the DNN corresponding to the triggered application according to the URSP, the DNN corresponding to the saved subscription LADN can learn whether the data network indicated by the DNN is the LADN, thereby determining whether to perform checking whether the UE is in the LADN. The action of the service area. Thereby, the signaling resources are saved to some extent. In addition, the success rate of the process of initiating the establishment/modification/activation of the session is increased.

With respect to the first embodiment, the UE obtains all the signed LADN DNNs, and can directly query whether the data network indicated by the DNN corresponding to the session is the LADN when the session is established, modified, or activated. In the first embodiment, after the UE learns from the URSP that the data network indicated by the DNN is the LADN, the UE needs to mark the LADN of the corresponding PDU session. Because the subsequent modification or activation of the session, the URSP will no longer be used to determine that the data network indicated by the DNN is LADN.

Embodiment 3:

Referring to Figure 8, a third possible way is specifically described.

A third possible way is to propose a new way of configuring LADN information. For convenience of description, the LADN information configured in this manner is referred to as second LADN information.

The second LADN information includes a DNN set of LADNs subscribed by the UE, and service area information corresponding to the DNN of the LADN that the UE can use in the current registration area in the DNN set; the UE can be used in the current registration area. The LADN is located in the registration area of the UE. The service area information corresponding to the DNN of the LADN that the UE cannot use in the DNN set is not included in the second LADN information.

For example, the DNN of the LADN that the UE subscribes to includes DNN1, DNN2, and DNN3. The network name of the LADN that the UE can use in the current registration area includes DNN1 and DNN2. For DNN3, the service area corresponding to DNN3 is not configured in the registration area of the UE or the LADN of DNN3 is not configured on the AMF, so that the UE cannot be used in the current registration area, so the service area information of DNN3 is not included in the second LADN information. The second LADN information includes the following: DNN1, service area information corresponding to DNN1; DNN2, service area information corresponding to DNN2; DNN3. Specifically, it can be expressed as the following format: second LADN information {[DNN1, DNN1-Service Area], [DNN2, DNN2-Service Area], [DNN3]}. It should be noted that the service area information of the DNN3 is not included in the second LADN information, that is, the TA information is not included, and the service area information corresponding to the DNN3 is empty, that is, the field content setting of the service area information corresponding to the DNN3 is set. If it is empty, it can also be implemented as a default to the field indicating the service area information corresponding to DNN3.

S801. The UE acquires second LADN information.

The obtaining, by the UE, the second LADN information may be implemented by: receiving a registration accept message sent by the AMF, where the registration accept message includes the parameter; or receiving a configuration update message sent by the AMF, where the configuration update message includes the parameter . It can be understood that before the AMF sends the registration receiving message or the configuration update message including the second LADN information to the UE, it needs to be the second LADN information.

S802. The UE determines the first DNN.

It should be noted that the UE determines that the first DNN can be based on the URSP, that is, when the UE triggers an application, the application determines that the application matches a certain rule in the URSP according to the URSP, and the rule includes the first DNN or the terminal determines by other means. When a PDU session is established, the DNN corresponding to the PDU session is the first DNN. The specific method for determining the first DNN is not limited in this application.

S803. The UE determines that the second LADN information includes a first DNN.

It can be understood that, when the UE determines that the second LADN information includes the first DNN, the UE determines that the data network indicated by the first DNN is the LADN, and further determines whether the UE is within the service area corresponding to the first DNN. When the UE determines that the second LADN information does not include the first DNN, the UE determines that the first DNN is not the DNN corresponding to the LADN, and does not need to perform a determination of whether the UE is within the service area corresponding to the first DNN.

S804. The UE determines whether the second LADN information includes service area information corresponding to the first DNN. If yes, execute S805, if no, execute S806.

S805. The UE determines, according to the service area information corresponding to the first DNN, whether the UE is located in a service area of the first data network indicated by the first DNN; if yes, execute S807, if no, execute S806.

The UE determines that the UE is in the service area of the first data network, and the UE sends a request message for establishing/modifying/activating the user plane connection/delete PDU session to the first core network device, if the UE determines that the UE is in the first data. Outside the service area of the network, the UE does not send a request message to establish/modify/activate the user plane connection/delete PDU session to the first core network device.

If the PDU session is established or modified, the first core network device is an SMF, that is, the UE sends a request message for establishing or modifying or deleting the PDU session to the SMF through the AMF; if the PDU session is activated (the user plane connection of the PDU session is activated), Then, the first core network device is an AMF, that is, the UE sends a request message to the AMF to activate the user plane connection of the PDU session. S806 and S807 are used as an example to establish a PDU session. The following is an example of establishing a PDU session. For the implementation of other operations, refer to the implementation manner for establishing a PDU session.

S806. The UE does not send a request message for establishing a PDU session to the SMF.

S807. The UE sends a request message for establishing a PDU session to the SMF, where the PDU session corresponds to the first DNN.

Optionally, after the step S803, if it is determined that the second LADN information does not include the first DNN, the request message is not sent to the SMF.

As shown in FIG. 9, a schematic flowchart of an implementation manner of acquiring second LADN information for a UE is used to include the parameter in a registration accept message as an example.

S901. The UE sends a registration request message to the AMF through the AN.

S902. After receiving the registration request message, the AMF sends a registration request service, such as Nudm-UECM_registration, to the UDM.

S903. The UDM sends a registration request service response to the AMF, for example, Nudm_SDM_GET, and the Nudm_SDM_GET includes the DNN of the LADN to which the UE subscribes. The DNN of the LADN that the UE subscribes to may be one or multiple.

The AMF determines the second LADN information according to the LADN signed by the UE, the LADN status configured by itself, the location of the UE, and the like. S904. The AMF sends a policy request service to the PCF, for example, Npcf_AMF policy control_GET,

S905. The PCF sends a policy request service response to the AMF, for example, Npcf_AMF policy control_GET response.

S906. The AMF sends a registration accept message to the UE. The second LAND information is included in the registration accept message.

After the DNN is included in the URSP rule that is matched by the application, the UE can obtain the second LAND information to obtain whether the data network indicated by the DNN is the LADN, so as to determine whether to perform the check whether the UE is in the LADN. The action of the service area. Thereby, the signaling resources are saved to some extent. In addition, the success rate of the process of initiating the establishment/modification/activation of the session is increased.

With respect to the second embodiment, the UE obtains all the LADN DNNs of the UE through the LADN information, and can directly query the second LADN information when the session is established, modified, or activated to determine whether the data network indicated by the DNN corresponding to the session is the LADN and the UE. Whether it is within the corresponding service area. The second embodiment needs to configure the first LADN information to the UE and additionally configure all the signed LADN DNNs of the UE. The UE needs to determine whether the UE corresponding to the DDN is the LADN through all the configured LADN DNNs, and then determine whether the UE is determined by the first LADN. Located within the corresponding service area. Thus, compared to the second embodiment, the overhead is saved.

In the embodiment provided by the present application, the method provided by the embodiment of the present application is introduced from the perspective of interaction between the core network device, the terminal, and the core network device and the terminal. In order to implement the functions in the foregoing method provided by the embodiment of the present application, the core network device and the terminal may include a hardware structure and/or a software module, and implement the foregoing functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. . One of the above functions is performed in a hardware structure, a software module, or a hardware structure plus a software module, depending on the specific application and design constraints of the technical solution.

Based on the same inventive concept, as shown in FIG. 10, an embodiment of the apparatus provided by the present application may be a terminal or a device in a terminal (such as a chip or a chip system), and the foregoing FIG. 3 and FIG. 5 may be performed. The method performed by the UE in any of the illustrated embodiments.

The obtaining module 1001 is configured to obtain first information.

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

The first determining module 1002 is configured to determine, according to the first information, that the data network indicated by the first data network name is the LADN;

The second determining module 1003 is configured to determine that the LADN information includes the first data network name and corresponding service area information.

The sending module 1004 is configured to: when the second determining module 1003 determines, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, send a PDU session establishment/modification to the first core network device. An activated request message, where the data network name corresponding to the PDU session is the first data network name;

The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.

In a possible implementation, the obtaining module 1001 is specifically configured to:

Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

Receiving configuration information of the terminal, where the configuration information includes the first information; or

The first information is obtained from information pre-configured in the terminal.

In a possible implementation manner, the sending module 1004 is further configured to:

When the LADN information of the second determining module 1003 does not include at least one of the first data network name and the service area information corresponding to the first data network name, not to the first core network device. Sending the request message; or,

When the second determining module 1003 determines that the terminal does not save the LADN information, the request message is not sent to the first core network device.

In a possible implementation, the device further includes:

The saving module 1005 is configured to save, after the sending module 1004 sends a request message for establishing a PDU session to the first core network device, the second information, where the second information is used to indicate that the PDU session corresponds to the The data network indicated by the first data network name is the LADN.

In a possible implementation manner, the first determining module 1002 is further configured to: when the saving module 1005 saves the second information, when the PDU session is to be modified/activated, according to the second information Determining that the data network indicated by the first data network name corresponding to the PDU session to be modified/activated is the LADN;

The sending module 1004 is further configured to: when the second determining module 1003 determines that the LADN information includes the first data network name and its corresponding service area information, and determine, according to the LADN information, that the terminal is located And sending, by the first core network device, the PDU session modification/activation request message to the first core network device.

In a possible implementation manner, the sending module 1004 is further configured to: when the second determining module 1003, the LADN information does not include the service corresponding to the first data network name and the first data network name Notifying the PDU session modification/activation request message to the first core network device when at least one of the area information is used; or

When the second determining module 1003 determines that the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.

Based on the same concept, as shown in FIG. 11, the apparatus provided by the present application may be a terminal, or may be a device capable of supporting a terminal to implement the function of the UE in the method of FIG. 3 or FIG. 5. Illustratively, the device can be a device within the terminal (such as a chip or chip system). It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 1110 for implementing the functions of the terminal in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 1120 for storing program instructions and/or data. Memory 1120 is coupled to processor 1110. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. Processor 1110 may operate in conjunction with memory 1120. The processor 1110 may execute program instructions stored in the memory 1120. At least one of the at least one memory 1120 may be included in the processor 1110.

A communication interface 1130 can also be included in the device, and the device can perform information interaction through the communication interface 1130 and other devices. Communication interface 1130 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a core network device. The processor 1110 can transmit and receive information using the communication interface 1130. For example, the communication interface 1130 is configured to receive the first information.

The specific connection medium between the communication interface 1130, the processor 1110, and the memory 1120 is not limited in the embodiment of the present application. The embodiment of the present application is connected by a bus between the memory 1120, the processor 1110, and the communication interface 1130 in FIG. 11, and the bus is indicated by a thick line in FIG. 11, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11, but it does not mean that there is only one bus or one type of bus.

In this embodiment, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or a transistor logic device, a discrete hardware component, or may be implemented or The methods, steps, and logical block diagrams disclosed in the embodiments of the present application are performed. A general purpose processor can be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.

In this embodiment, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or may be a volatile memory, such as Random-access memory (RAM). The memory may also be any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function for storing program instructions and/or data.

As shown in FIG. 12, another embodiment of the apparatus provided by the present application may be a core network device or a device (such as a chip or a chip system) in a core network device, and may perform the foregoing as shown in FIG. 3 or FIG. 5. The method performed by the first core network device in any of the illustrated embodiments.

The sending module 1201 is configured to send first information to the terminal, where the first information is used by the terminal to determine that the data network indicated by the first data network name is the local data network LADN;

The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.

In a possible implementation manner, the sending module 1201 is specifically configured to:

Sending a policy to the terminal, where the policy includes the first information.

In a possible implementation, the device further includes:

The receiving module 1202 is configured to receive, after the sending module 1201 sends the first information to the terminal, the second information sent by the second core network device.

The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or

The second information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.

Based on the same concept, as shown in FIG. 13 , the apparatus provided by the present application may be a core network device, or may be capable of supporting a core network device to implement the first core network in the method related to FIG. 3 or FIG. 5 . A device that functions as a device. Illustratively, the device may be a device (such as a chip or chip system) within the core network device. It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 1310 for implementing the functions of the core network device in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 1320 for storing program instructions and/or data. Memory 1320 is coupled to processor 1310. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. Processor 1310 may operate in conjunction with memory 1320. The processor 1310 may execute program instructions stored in the memory 1320. At least one of the at least one memory 1320 may be included in the processor 1310.

A communication interface 1330 can also be included in the device, and the device can exchange information with other devices through the communication interface 1330. Communication interface 1330 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a terminal or other core network device. The processor 1310 can transmit and receive information using the communication interface 1330. For example, the communication interface 1330 is configured to receive the first information.

The specific connection medium between the communication interface 1330, the processor 1310, and the memory 1320 is not limited in the embodiment of the present application. The embodiment of the present application is connected by a bus between the memory 1320, the processor 1310, and the communication interface 1330 in FIG. 13, and the bus is indicated by a thick line in FIG. 13, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 13, but it does not mean that there is only one bus or one type of bus.

Based on the same inventive concept, as shown in FIG. 14 , an embodiment of the apparatus provided by the present application may be a terminal or a device in a terminal (such as a chip or a chip system), and the foregoing FIG. 6 or FIG. 7 may be performed. The method performed by the UE in any of the illustrated embodiments.

The obtaining module 1401 is configured to acquire a parameter, where the parameter includes a data network name set of the local data network LADN subscribed by the terminal;

a first determining module 1402, configured to determine a first data network name;

a second determining module 1403, configured to determine, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name, when the data network name set includes the first data network name Inside;

The LADN information includes a data network name of the LADN that the terminal can use in the current registration area, and corresponding service area information;

The sending module 1404 is configured to: when the second determining module 1403 determines that the terminal is in the service area of the first data network, send a request for establishing, modifying, or activating a protocol data unit PDU session to the first core network device. a message; wherein the PDU session corresponds to the first data network name.

In a possible implementation, the obtaining module 1401 is specifically configured to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

Receiving configuration information, the configuration information including the parameter; or

The parameter is obtained from parameters preconfigured in the terminal.

In a possible implementation manner, the second determining module 1403 is specifically configured to:

Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .

In a possible implementation, the sending module 1404 is further configured to: when the second determining module 1403 determines that the terminal is not in the service area of the first data network, not to the first The core network device sends the request message.

In a possible implementation manner, the sending module 1404 is further configured to: when the first determining module 1402 determines that the data network name set includes the first data network name, in the second determining module 1403. When it is determined that the LADN information is not saved by the terminal, the request message is not sent to the first core network device.

Based on the same concept, as shown in FIG. 15, an apparatus provided by the present application may be a terminal, or may be a device capable of supporting a terminal to implement the functions of the UE in the method of FIG. 6 or FIG. Illustratively, the device can be a device within the terminal (such as a chip or chip system). It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 1510 for implementing the function of the terminal in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 1520 for storing program instructions and/or data. Memory 1520 is coupled to processor 1510. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. Processor 1510 may operate in conjunction with memory 1520. Processor 1510 may execute program instructions stored in memory 1520. At least one of the at least one memory 1520 may be included in the processor 1510.

A communication interface 1530 can also be included in the device, and the device can interact with other devices via the communication interface 1530. Communication interface 1530 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a core network device. The processor 1510 can transmit and receive parameters, information, etc. using the communication interface 1530. For example, the communication interface 1530 is configured to receive parameters.

The specific connection medium between the communication interface 1530, the processor 1510, and the memory 1520 is not limited in the embodiment of the present application. The embodiment of the present application is connected by a bus between the memory 1520, the processor 1510, and the communication interface 1530 in FIG. 15, and the bus is indicated by a thick line in FIG. 15, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 15, but it does not mean that there is only one bus or one type of bus.

As shown in FIG. 16, another embodiment of the apparatus provided by the present application may be a core network device or a device (such as a chip or a chip system) in a core network device, and may perform the foregoing as shown in FIG. 6 or FIG. 7. The method performed by the first core network device in any of the illustrated embodiments.

The sending module 1601 is configured to send a parameter to the terminal, where the parameter includes a data network name set of the local data network LADN subscribed by the terminal, so that the terminal is to initiate a protocol data unit PDU corresponding to the first data network name. Determining, according to the parameter, that the first data network name is a data network name corresponding to the first LADN, where the data network name of the first LADN is in a data network name of the LADN subscribed by the terminal. one of.

In a possible implementation manner, the sending module 1601 is specifically configured to:

Sending a registration accept message to the terminal, the registration accept message including the parameter; or

Sending a configuration update message to the terminal, the configuration update message including the parameter.

In a possible implementation manner, the device further includes: a receiving module 1602, configured to receive, after the sending module 1601 sends a parameter to the terminal, a second parameter sent by the second core network device, where the second parameter The data network name of the LADN including the terminal subscription.

Based on the same concept, as shown in FIG. 17 , the apparatus provided by the present application may be a core network device, or may be capable of supporting a core network device to implement the first core network in the method related to FIG. 6 or FIG. 7 . A device that functions as a device. Illustratively, the device may be a device (such as a chip or chip system) within the core network device. It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 1710 for implementing the functions of the core network device in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 1720 for storing program instructions and/or data. Memory 1720 is coupled to processor 1710. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. The processor 1710 may operate in conjunction with the memory 1720. The processor 1710 may execute program instructions stored in the memory 1720. At least one of the at least one memory 1720 can be included in the processor 1710.

A communication interface 1730 can also be included in the device, and the device can interact with other devices via the communication interface 1730. Communication interface 1730 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a terminal or other core network device. The processor 1710 can transmit and receive information using the communication interface 1730. For example, the communication interface 1730 is configured to receive the first information.

The specific connection medium between the above communication interface 1730, the processor 1710, and the memory 1720 is not limited in the embodiment of the present application. The embodiment of the present application is connected by a bus between the memory 1720, the processor 1710, and the communication interface 1730 in FIG. 17, and the bus is indicated by a thick line in FIG. 17, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 17, but it does not mean that there is only one bus or one type of bus.

Based on the same inventive concept, as shown in FIG. 18, an embodiment of the apparatus provided by the present application may be a terminal or a device in a terminal (such as a chip or a chip system), and the foregoing FIG. 8 or FIG. 9 may be performed. The method performed by the UE in any of the illustrated embodiments.

The obtaining module 1801 is configured to obtain LADN information;

The LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and a service area corresponding to the data network name of the LADN that the terminal can use in the current registration area in the data network name set. information;

a first determining module 1802, configured to determine a first data network name;

The second determining module 1803 is configured to: when the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determine, according to the service area information corresponding to the first data network name, The terminal is located in a service area of the first data network indicated by the first data network name;

The sending module 1804 is configured to: when the second determining module 1803 determines, according to the service area information corresponding to the first data network name, that the terminal is located in a service area of the first data network indicated by the first data network name And sending, to the first core network device, a protocol data unit PDU session establishment/modification/activation request message; wherein the PDU session corresponds to the first data network name.

In a possible implementation manner, the sending module 1804 is further configured to:

When the second determining module 1803 determines that the LADN information does not include the first data network name, sending the request message to the first core network device; or

When the second determining module 1803 determines that the LADN information includes the first data network name but does not include the service area information corresponding to the first data network name, the second determining module 1803 does not send the Request message; or,

When the second determining module 1803 determines that the LADN information includes the first data network name and the service area information corresponding to the first data network name, and determines, according to the service area information corresponding to the first data network name, When the terminal is located outside the service area of the first data network, the request message is not sent to the first core network device.

In a possible implementation, the obtaining module 1801 is specifically configured to:

Receiving a registration accept message sent by the first core network device, where the registration accept message includes the LADN information; or

Receiving a configuration update message sent by the first core network device, where the configuration update message includes the LADN information.

Based on the same concept, as shown in FIG. 19, an apparatus provided by the present application may be a terminal, or may be a device capable of supporting a terminal to implement the functions of the UE in the method of FIG. 8 or FIG. Illustratively, the device can be a device within the terminal (such as a chip or chip system). It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 1910 for implementing the function of the terminal in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 1920 for storing program instructions and/or data. Memory 1920 is coupled to processor 1910. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. Processor 1910 may operate in conjunction with memory 1920. The processor 1910 may execute program instructions stored in the memory 1920. At least one of the at least one memory 1920 can be included in the processor 1910.

A communication interface 1930 can also be included in the device, and the device can interact with other devices via the communication interface 1930. Communication interface 1930 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a core network device. The processor 1910 can transmit and receive parameters, information, etc. using the communication interface 1930. For example, the communication interface 1930 is configured to receive parameters.

The specific connection medium between the above communication interface 1930, the processor 1910, and the memory 1920 is not limited in the embodiment of the present application. The embodiment of the present application is connected by a bus between the memory 1920, the processor 1910, and the communication interface 1930 in FIG. 19, and the bus is indicated by a thick line in FIG. 19, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 19, but it does not mean that there is only one bus or one type of bus.

As shown in FIG. 20, in an embodiment of the apparatus provided by the present application, the apparatus may be a core network device or a device (such as a chip or a chip system) in a core network device, and may perform the foregoing as shown in FIG. 8 or FIG. 9. A method performed by a first core network device in any of the illustrated embodiments.

The sending module 2001 is configured to send LADN information to the terminal, where the LADN information includes a data network name set of the local data network LADN subscribed by the terminal, and the terminal in the data network name set is in the current registration area. Service area information corresponding to the data network name of the LADN that can be used;

And determining, by the terminal, that the first data network name is a data network name corresponding to the first LADN, according to the LADN information, when the terminal is to initiate an operation of the protocol data unit PDU session corresponding to the first data network name, where The data network name of the first LADN is one of the data network names of the LADNs subscribed by the terminal.

In a possible implementation, the sending module 2001 is specifically configured to:

Sending a registration accept message to the terminal, where the registration accept message includes the LADN information; or

Sending a configuration update message to the terminal, where the configuration update message includes the LADN information.

In a possible implementation manner, the method further includes:

The receiving module 2002 is configured to receive, before the sending module 2001 sends the LADN information to the terminal, a data network name of the LADN subscribed by the terminal sent by the second core network device.

Based on the same concept, as shown in FIG. 21, the apparatus provided by the present application may be a core network device, or may be capable of supporting a core network device to implement the first core network in the method related to FIG. 8 or FIG. A device that functions as a device. Illustratively, the device may be a device (such as a chip or chip system) within the core network device. It should be noted that, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The device includes at least one processor 2110 for implementing the functions of the core network device in the indication method provided by the embodiment of the present application. The apparatus can also include at least one memory 2120 for storing program instructions and/or data. Memory 2120 is coupled to processor 2110. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules. Processor 2110 may operate in conjunction with memory 21210. The processor 2110 may execute program instructions stored in the memory 2120. At least one of the at least one memory 2120 can be included in the processor 2110.

A communication interface 2130 may also be included in the device, and the device may perform information interaction through the communication interface 2130 and other devices. Communication interface 2130 can be a circuit, bus, transceiver, or any other device that can be used to interact with information. Wherein, by way of example, the other device may be a terminal or other core network device. The processor 2110 can transmit and receive information by using the communication interface 2130. For example, the communication interface 2130 is configured to receive the first information.

The specific connection medium between the communication interface 2130, the processor 2110, and the memory 2121 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 2120, the processor 2110, and the communication interface 2130 are connected by a bus in FIG. 21, and the bus is indicated by a thick line in FIG. 21, and the connection manner between other components is only schematically illustrated. Not limited to limits. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 21, but it does not mean that there is only one bus or one type of bus.

It should be understood that the manner in which the apparatus shown in FIG. 10, FIG. 12, FIG. 14, FIG. 16, FIG. 18, and FIG. 20 is divided into modules is schematic, and only one logical function is divided, and the actual implementation may have another division. the way. For example, the communication unit is divided into a receiving unit, a transmitting unit, and the like.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims (42)

1. A method for indicating a local data network, wherein the method is applied to a terminal, including:

   Obtain the first information;

   The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

   The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

   Determining, according to the first information, a data network indicated by the first data network name as the LADN.
2. The method of claim 1, wherein the obtaining the first information comprises:

   Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

   Receiving configuration information of the terminal, where the configuration information includes the first information; or

   The first information is obtained from information pre-configured in the terminal.
3. The method of claim 1 or 2, wherein the method further comprises:

   And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the first core network device Sending a request message of the protocol data unit PDU session establishment/modification/activation, the data network name corresponding to the PDU session is the first data network name;

   The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.
4. The method of claim 3, wherein the method further comprises:

   When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or ,

   When the terminal does not save the LADN information, the request message is not sent to the first core network device.
5. The method of claim 3, wherein after the sending of the PDU session establishment request message to the first core network device, the method further comprises:

   The second information is used to indicate that the data network indicated by the first data network name corresponding to the PDU session is the LADN.
6. The method of claim 5, wherein after the saving the second information, the method further comprises:

   Determining, when the PDU session is to be modified/activated, determining, according to the second information, that the data network indicated by the first data network name corresponding to the PDU session to be modified/activated is the LADN;

   And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the A core network device sends a request message for the PDU session modification/activation.
7. The method of claim 6 wherein the method further comprises:

   When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the PDU session modification is not sent to the first core network device/ Activated request message; or,

   When the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.
8. A pointing device for a local data network, wherein the device is applied to a terminal, including:

   Obtaining a module, configured to obtain first information;

   The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

   The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

   And a first determining module, configured to determine, according to the first information, that the data network indicated by the first data network name is the LADN.
9. The device according to claim 8, wherein the obtaining module is specifically configured to:

   Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

   Receiving configuration information of the terminal, where the configuration information includes the first information; or

   The first information is obtained from information pre-configured in the terminal.
10. The device according to claim 8 or 9, wherein the device further comprises:

    a second determining module, configured to determine that the LADN information includes the first data network name and corresponding service area information;

    a sending module, configured to: when the second determining module determines, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, send a protocol data unit PDU session establishment/modification to the first core network device. / an activation request message, the data network name corresponding to the PDU session is the first data network name;

    The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.
11. The device according to claim 10, wherein the sending module is further configured to:

    When the LADN information of the second determining module does not include at least one of the first data network name and the service area information corresponding to the first data network name, not sent to the first core network device. The request message; or,

    When the second determining module determines that the terminal does not save the LADN information, the request message is not sent to the first core network device.
12. The device of claim 10, wherein the device further comprises:

    a saving module, configured to save, after the sending module sends a PDU session establishment request message to the first core network device, the second information, where the second information is used to indicate the first corresponding to the PDU session The data network indicated by the data network name is the LADN.
13. The device according to claim 12, wherein the first determining module is further configured to: when the saving module saves the second information, when the PDU session is to be modified/activated, according to the Determining, by the second information, that the data network indicated by the first data network name corresponding to the PDU session to be modified/activated is the LADN;

    The sending module is further configured to: when the second determining module determines that the LADN information includes the first data network name and its corresponding service area information, and determine, according to the LADN information, that the terminal is located in the When the first data network name corresponds to the service area, the PDU session modification/activation request message is sent to the first core network device.
14. The device according to claim 13, wherein the sending module is further configured to: when the second determining module, the LADN information does not include the first data network name and the first data network name The PDU session modification/activation request message is not sent to the first core network device when at least one of the service area information is received; or

    When the second determining module determines that the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.
15. A pointing device for a local data network, wherein the device is applied to a terminal, including:

    Memory and processor;

    The memory is configured to store program instructions;

    The processor is configured to invoke and execute the program instruction stored in the memory, where the program instruction is specifically configured to perform acquiring the first information;

    The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is a local data network LADN; or

    The first information includes a first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN;

    Determining, according to the first information, a data network indicated by the first data network name as the LADN.
16. The device according to claim 15, wherein the processor, when acquiring the first information, is specifically configured to:

    Receiving a user routing policy URSP sent by the first core network device, where the URSP includes the first information; or

    Receiving configuration information of the terminal, where the configuration information includes the first information; or

    The first information is obtained from information pre-configured in the terminal.
17. The device according to claim 15 or 16, wherein the processor is further configured to:

    And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the first core network device Sending a request message of the protocol data unit PDU session establishment/modification/activation, the data network name corresponding to the PDU session is the first data network name;

    The LADN information includes a data network name of the LADN and a corresponding service area information of the LADN that the terminal can use in the current registration area.
18. The device according to claim 17, wherein the processor is further configured to:

    When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the request message is not sent to the first core network device; or ,

    When the terminal does not save the LADN information, the request message is not sent to the first core network device.
19. The device according to claim 17, wherein the processor is further configured to save the second information to the memory after sending a request message for establishing a PDU session to the first core network device, The second information is used to indicate that the data network indicated by the first data network name corresponding to the PDU session is the LADN.
20. The device according to claim 19, wherein the processor is further configured to:

    Determining, according to the second information, the first data network name indication corresponding to the PDU session to be modified/activated, after saving the second information to the processor, when the PDU session is to be modified/activated Data network for the LADN;

    And when the LADN information includes the first data network name and the corresponding service area information, and determining, according to the LADN information, that the terminal is located in a service area corresponding to the first data network name, to the A core network device sends a request message for the PDU session modification/activation.
21. The device according to claim 20, wherein the processor is further configured to:

    When the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, the PDU session modification is not sent to the first core network device/ Activated request message; or,

    When the terminal does not save the LADN information, the PDU session modification/activation request message is not sent to the first core network device.
22. A method for indicating a local data network, wherein the method is applied to a first core network device, including:

    Sending the first information to the terminal; the first information is used by the terminal to determine that the data network indicated by the first data network name is the local data network LADN;

    The first information includes the first data network name and a first indication, where the first indication is used to indicate that the data network indicated by the first data network name is the LADN; or

    The first information includes the first data network name, the first data network name includes a second indication, and the second indication is used to indicate that the data network indicated by the first data network name is the LADN.
23. The method of claim 22, wherein the transmitting the first information to the terminal comprises:

    Sending a policy to the terminal, where the policy includes the first information.
24. The method according to claim 22 or 23, wherein before the sending the first information to the terminal, the method further comprises:

    Receiving second information sent by the second core network device;

    The second information includes the first data network name and a third indication, where the third indication is used to indicate that the data network indicated by the first data network name is the LADN; or the second The information includes the first data network name, the first data network name includes a fourth indication, and the fourth indication is used to indicate that the data network indicated by the first data network name is the LADN.
25. A method for indicating a local data network, wherein the method is applied to a terminal, including:

    Obtaining a parameter, where the parameter includes a data network name set of the local data network LADN subscribed by the terminal;

    Determining the first data network name;

    Determining, when the data network name set includes the first data network name, whether the terminal is within a service area of the first data network indicated by the first data network name;

    Transmitting, by the terminal, the request message of the protocol data unit PDU session establishment/modification/activation to the first core network device, where the PDU session corresponds to the first data Network name.
26. The method of claim 25, wherein the obtaining parameters comprises:

    Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

    Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

    Receiving configuration information, the configuration information including the parameter; or

    The parameter is obtained from parameters preconfigured in the terminal.
27. The method of claim 25 or claim 26, wherein the determining whether the terminal is within a service area of the first data network indicated by the first data network name comprises:

    Determining, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name, where the LADN information includes a data network name of the LADN that the terminal can use in the current registration area and Corresponding service area information.
28. The method of claim 27, wherein determining whether the terminal is within a service area of the first data network indicated by the first data network name according to the LADN information comprises:

    Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

    If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .
29. The method of claim 28, wherein the method further comprises:

    When it is determined that the terminal is not within the service area of the first data network, the request message is not sent to the first core network device.
30. The method of claim 25 or claim 26, wherein when the data network name set includes the first data network name, the method further comprises:

    When the terminal does not save the LADN information, the request message is not sent to the first core network device.
31. A pointing device for a local data network, wherein the device is applied to a terminal, including:

    An obtaining module, configured to acquire a parameter, where the parameter includes a data network name set of a local data network LADN subscribed by the terminal;

    a first determining module, configured to determine a first data network name;

    a second determining module, configured to determine, when the data network name set includes the first data network name, whether the terminal is in a service area of the first data network indicated by the first data network name;

    a sending module, configured to: when the second determining module determines that the terminal is in a service area of the first data network, send a request message for establishing, modifying, or activating a protocol data unit PDU session to the first core network device; The PDU session corresponds to the first data network name.
32. The device according to claim 31, wherein the obtaining module is specifically configured to:

    Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

    Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

    Receiving configuration information, the configuration information including the parameter; or

    The parameter is obtained from parameters preconfigured in the terminal.
33. The device according to claim 31 or 32, wherein the second determining module is configured to determine whether the terminal is within a service area of the first data network indicated by the first data network name. to:

    Determining, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name, where the LADN information includes a data network name of the LADN that the terminal can use in the current registration area and Corresponding service area information.
34. The device according to claim 33, wherein the second determining module is configured to: when determining whether the terminal is in a service area of the first data network indicated by the first data network name, specifically:

    Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in the service area of the first data network; or

    If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .
35. The device according to claim 34, wherein the sending module is further configured to: when the second determining module determines that the terminal is not in the service area of the first data network, not to the The first core network device sends the request message.
36. The device according to claim 31 or 32, wherein the sending module is further configured to: when the first determining module determines that the data network name set includes the first data network name, The second determining module determines that the LADN information is not saved by the terminal, and does not send the request message to the first core network device.
37. A pointing device for a local data network, wherein the device is applied to a terminal, including:

    Memory and processor;

    The memory is configured to store program instructions;

    The processor is configured to invoke and execute the program instruction stored in the memory, where the program instruction is specifically configured to execute an acquisition parameter, where the parameter includes a data network name set of a local data network LADN subscribed by the terminal;

    Determining the first data network name;

    Determining, when the data network name set includes the first data network name, whether the terminal is within a service area of the first data network indicated by the first data network name;

    Transmitting, by the terminal, the request message of the protocol data unit PDU session establishment/modification/activation to the first core network device, where the PDU session corresponds to the first data Network name.
38. The device according to claim 37, wherein the processor is configured to:

    Receiving a registration accept message sent by the first core network device, where the registration accept message includes the parameter; or

    Receiving a configuration update message sent by the first core network device, where the configuration update message includes the parameter; or

    Receiving configuration information, the configuration information including the parameter; or

    The parameter is obtained from parameters preconfigured in the terminal.
39. The device according to claim 37 or claim 38, wherein the processor is configured to: when determining whether the terminal is in a service area of the first data network indicated by the first data network name, specifically:

    Determining, according to the LADN information, whether the terminal is in a service area of the first data network indicated by the first data network name, where the LADN information includes a data network name of the LADN that the terminal can use in the current registration area and Corresponding service area information.
40. The device according to claim 39, wherein the processor is specifically configured to determine, according to the LADN information, whether the terminal is within a service area of the first data network indicated by the first data network name, :

    Determining, in the LADN information, the service area information corresponding to the first data network name, and determining, according to the service area information corresponding to the first data network name, whether the terminal is located in a service area of the first data network; or

    If it is determined that the LADN information does not include at least one of the first data network name and the service area information corresponding to the first data network name, determining that the terminal is not in the service area of the first data network .
41. The device according to claim 40, wherein the processor is further configured to: when the terminal is determined not to be in the service area of the first data network, not to send to the first core network device The request message.
42. The device according to claim 37 or claim 38, wherein the processor is further configured to: when the data network name set includes the first data network name, determine that the terminal does not save the LADN When the information is not sent, the request message is not sent to the first core network device.

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