CN111417105A - TAI setting method and device and computer readable storage medium - Google Patents

Abstract

Embodiments of the present invention provide a TAI setting method, device, and computer-readable storage medium. The method includes: combining TAs in the TAI with a preset granularity to form a new service area attribute tasiList; sending The new service area attribute tasiList.

Description

A kind of setting method, device and computer-readable storage medium of TAI

technical field

The present invention relates to the technical field of mobile communication, and in particular, to a method, a device and a computer-readable storage medium for setting a Tracking Area Identity (TAI).

Background technique

In the service-oriented network architecture of the 5G core network, the core network elements in the traditional sense are split to realize the decoupling of software and hardware. The entire network architecture consists of several network functions. The service-oriented network architecture defined by 3GPP further splits each network function into several self-contained, self-managed and reusable network function services. Each network function can call other or its own network function services, realizing flexible and convenient features.

The 5G core network network functions involved in this paper mainly include network functions that carry attribute data of their own service areas: Access and Mobility Management Function (AMF) and Session Management Function (SMF), In addition, it also includes a network storage function (NetworkRepository Function, NRF). The AMF entity is the termination point of the RAN signaling interface N2 and the termination point of the NAS signaling. It is responsible for the encryption and security of NAS messages, and for the functions of UE registration, access, mobility, authentication, and transparent transmission of short messages. The SMF entity is mainly responsible for the establishment, modification and release of the session, the IP address allocation management of the UE, the DHCP function, the selection and control of the UPF for the session, the decision of the SSC mode of the session, and the collection of charging data. The NRF entity supports the registration, update, discovery and deletion of network functions/network function services. In order to realize the automation of network function service management, other network function entities first need to register with the NRF entity before they can work or be called by other network functions.

In the process of service registration and service discovery, when an AMF entity or SMF entity is registered in an NRF entity, it needs to carry its service scope information, that is, the set of Tracking AreaIdentity (TAI) supported by the AMF entity or SMF entity; When the session is established, in the process of selecting the appropriate SMF entity through service discovery, the NRF entity will bring down all the TAI sets supported by the SMF entity, and let the AMF entity select the SMF entity to serve it. When the session is established, the AMF entity selects the appropriate SMF entity through service discovery.

When the AMF entity or SMF entity is registered in the NRF entity through the service registration, and the supported TAI is passed to the NRF entity in the form of an array. When the AMF entity performs service discovery to find the required SMF entity, the NRF entity will transmit the NFProfile of the SMF entity required by the AMF entity to the AMF entity, including the TAI set supported by the SMF entity, that is, the taiList attribute in smfInfo.

But in general, an AMF entity or SMF entity may have a large area and a large number of TAs, so the taiList attribute is an array containing many elements, which leads to the relationship between the AMF entity or the SMF entity and the NRF entity, and The amount of data transmitted between the NRF entity and the AMF entity is large and the transmission time is long. At the same time, the storage resources of the AMF entity, SMF entity and NRF entity are occupied more, and there is a certain redundancy. Therefore, it is necessary to attribute TAI to the service area. The data storage and delivery methods are optimized.

SUMMARY OF THE INVENTION

In view of this, embodiments of the present invention are expected to provide a TAI setting method, apparatus, and computer-readable storage medium.

In order to achieve the above-mentioned purpose, the technical scheme of the embodiment of the present invention is realized as follows:

An embodiment of the present invention provides a method for setting a tracking area identification code TAI, the method comprising:

Combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

The new service area attribute tasiList is sent.

Wherein, the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, including:

TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; The N is the serial number of TA, which is an integer.

Wherein, the preset granularity is represented as tracking area set identifier TASI, correspondingly,

Each group of TA is denoted as TASI _i ; the i is greater than or equal to 1 and less than N.

Wherein, in the network function service registration process, the sending of the new service area attribute tasiList includes:

A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.

An embodiment of the present invention also provides a method for setting a tracking area identification code TAI, the method comprising:

Receive a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity;

The new service area attribute tasiList is stored.

Optionally, after storing the new service area attribute tasiList, the method further includes:

receive service discovery requests;

Return a message carrying the new service area attribute tasiList.

An embodiment of the present invention also provides a device for setting a tracking area identification code TAI, the device comprising:

A setting module is used to combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

A sending module, configured to send the new service area attribute tasiList.

An embodiment of the present invention also provides a device for setting a tracking area identification code TAI, the device comprising:

a receiving module for receiving a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity;

A storage module for storing the new service area attribute tasiList.

The embodiment of the present invention also provides a tracking area identification code TAI setting device, the device includes: a processor and a memory for storing a computer program that can be run on the processor,

Wherein, the processor is configured to execute the steps of the above method when running the computer program.

Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the above method.

The TAI setting method, device, and computer-readable storage medium provided by the embodiments of the present invention combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList; send the new service area attribute tasiList. In the embodiment of the present invention, the TA in the original TAI is recombined with a preset granularity, and the formed new service area attribute tasiList is much smaller than the previous taiList data, which realizes the optimization of the service area attribute and saves the storage space. At the same time, the amount of transmitted data is reduced, and the transmission delay is shortened.

Description of drawings

1 is a schematic flowchart 1 of a method for setting a TAI according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart 2 of a method for setting a TAI according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram 1 of a TAI setting device according to an embodiment of the present invention;

4 is a second structural schematic diagram of a device for setting TAI according to an embodiment of the present invention;

5 is a schematic diagram of the network function service registration process described in the related art;

6 is a schematic diagram of a network function service discovery process described in the related art;

FIG. 7 is a schematic diagram of a process of registering a network function service according to an embodiment of the present invention.

Detailed ways

The present invention will be described below with reference to the accompanying drawings and embodiments.

An embodiment of the present invention provides a TAI setting method. As shown in FIG. 1 , the method can be applied to a service caller, including:

Step 101: Combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

Step 102: Send the new service area attribute tasiList.

In the embodiment of the present invention, the TA in the original TAI is recombined with a preset granularity, and the formed new service area attribute tasiList is much smaller than the previous taiList data, which realizes the optimization of the service area attribute and saves the storage space. At the same time, the amount of transmitted data is reduced, and the transmission delay is shortened.

In the embodiment of the present invention, the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, including:

TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; The N is the serial number of TA, which is an integer.

In the embodiment of the present invention, the preset granularity is represented as a tracking area set identifier TASI, and correspondingly, each group of TAs is represented as TASI _i ; the i is greater than or equal to 1 and less than N.

In the embodiment of the present invention, in the network function service registration process, the sending of the new service area attribute tasiList includes:

A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.

An embodiment of the present invention also provides a method for setting TAI. As shown in FIG. 2 , the method can be applied to the NRF entity side, including:

Step 201: Receive a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining TAs in the TAI with a preset granularity;

Step 202: Store the new service area attribute tasiList.

In the embodiment of the present invention, after storing the new service area attribute tasiList, the method further includes:

receive service discovery requests;

Return a message carrying the new service area attribute tasiList.

In order to implement the above method embodiment, the embodiment of the present invention further provides a TAI setting device, as shown in FIG. 3 , the device includes:

A setting module 301 is used to combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

The sending module 302 is configured to send the new service area attribute tasiList.

In the embodiment of the present invention, the setting module 301 combines the TAs in the TAI with a preset granularity to form a new service area attribute tasiList, including:

TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; The N is the serial number of TA, which is an integer.

In the embodiment of the present invention, the preset granularity is represented as a tracking area set identifier TASI, and correspondingly, each group of TAs is represented as TASI _i ; the i is greater than or equal to 1 and less than N.

In the embodiment of the present invention, in the network function service registration process, the sending module 302 sends the new service area attribute tasiList, including:

A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.

An embodiment of the present invention also provides a device for setting a tracking area identification code TAI, as shown in FIG. 4 , the device includes:

The receiving module 401 is configured to receive a new service area attribute tasiList; the new service area attribute tasiList is formed by combining TAs in the TAI with a preset granularity;

The storage module 402 is configured to store the new service area attribute tasiList.

In this embodiment of the present invention, after the storage module 402 stores the new service area attribute tasiList,

The receiving module 401 is further configured to receive a service discovery request; and return a message carrying the new service area attribute tasiList.

The embodiment of the present invention also provides a tracking area identification code TAI setting device, the device includes: a processor and a memory for storing a computer program that can be run on the processor,

Wherein, when the processor is configured to run the computer program, execute:

Combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

The new service area attribute tasiList is sent.

When the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, the processor is further configured to execute the computer program when running:

TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; The N is the serial number of TA, which is an integer.

Wherein, the preset granularity is represented as tracking area set identifier TASI, correspondingly,

Each group of TA is denoted as TASI _i ; the i is greater than or equal to 1 and less than N.

In the network function service registration process, when the new service area attribute tasiList is sent, the processor is further configured to execute: when running the computer program:

A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.

The embodiment of the present invention also provides a tracking area identification code TAI setting device, the device includes: a processor and a memory for storing a computer program that can be run on the processor,

Wherein, when the processor is configured to run the computer program, execute:

Receive a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity;

The new service area attribute tasiList is stored.

After storing the new service area attribute tasiList, the processor is further configured to execute the following when running the computer program:

receive service discovery requests;

Return a message carrying the new service area attribute tasiList.

It should be noted that: when the device provided in the above embodiment performs TAI setting, only the division of the above program modules is used as an example. The internal structure is divided into different program modules to complete all or part of the processing described above. In addition, the apparatuses provided in the foregoing embodiments belong to the same concept as the corresponding method embodiments, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.

In an exemplary embodiment, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, Or memory such as CD-ROM; it can also be various devices including one or any combination of the above memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, executes:

Combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;

The new service area attribute tasiList is sent.

When the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, when the computer program is run by the processor, it also executes:

TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; The N is the serial number of TA, which is an integer.

Wherein, the preset granularity is represented as tracking area set identifier TASI, correspondingly,

Each group of TA is denoted as TASI _i ; the i is greater than or equal to 1 and less than N.

In the network function service registration process, when the new service area attribute tasiList is sent, when the computer program is run by the processor, the computer program also executes:

A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, executes:

Receive a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity;

The new service area attribute tasiList is stored.

After the storage of the new service area attribute tasiList, when the computer program is run by the processor, the computer program also executes:

receive service discovery requests;

Return a message carrying the new service area attribute tasiList.

The present invention will be described below with reference to scenario embodiments.

First, the network function service registration process and discovery process in the related art are introduced.

Wherein, the network function service registration process is shown in Figure 5, including:

Step 501: the service calling direction sends a request to the NRF entity, carrying the parameter NFProfile, and the method is PUT;

Step 502: If the request is successful, the status code 201 is returned, and the NRF entity saves the NFProfile of the service caller.

As can be seen in Standard 29.510, the service caller needs to include the NFProfile in the request body during the service registration or update process; after the NF registration is successful, the NRF entity saves the service caller's NFProfile.

When the service caller is an AMF entity, its NFProfile contains the amfInfo attribute; amfInfo contains the taiList attribute, whose format is an array of TAI, representing the TAI list that the registered AMF entity can serve, that is, the service area.

Similarly, when the service caller is an SMF entity, its NFProfile contains the smfInfo attribute; smfInfo contains the taiList attribute, whose format is an array of TAI, representing the list of TAIs that the registered SMF entity can serve, that is, the service area.

Wherein, the network function service discovery process is shown in Figure 6, including:

Step 601: The service calling direction sends a request to the NRF entity, carrying query parameters, and the method is GET;

Step 602: If the request is successful, the status code 200 is returned, and the query result is returned at the same time.

It can be seen that in the service discovery process, after the service caller initiates a request to the NRF entity by querying relevant parameters, when the request is successful, the NRF entity will return the service that the service caller needs to query to the service caller.

It can be found that the NFProfile returned by the service discovery result contains amfInfo and smfInfo. Indicates that when the service caller wants to discover AMF entities or SMF entities, the returned result will contain the corresponding attributes. Similarly, both amfInfo and smfInfo contain a taiList attribute whose format is an array of TAI, representing the service scope of the discovered AMF entity or SMF entity.

When the network is actually deployed, the service areas of the SMF entity and the AMF entity are allocated continuously and uniformly, and the TAI they support also has certain regularity. In order to optimize the storage of service area attribute data in the network function module of the core network, save storage space, and reduce the amount of transmitted data, the embodiment of the present invention provides a method:

The TAI is further packaged and a higher-level concept is introduced, such as TASI (Tracking Area SetIdentity). If it is assumed that the SMF entity supports 1000 TAs, the TAI is TA1-TA1000, and the original taiList attribute is in the form of [TA1, TA2, TA3,..., TA1000], where TAS is composed of different numerical values and represented by TASI, it can be effectively of reducing the length of the taiList array.

For example: 50 can be used as the granularity, then TASI1 means [TA1, TA2,..., TA50], TASI2 means [TA51, TA52, TA53,..., TA100], then the form of the taiList attribute is changed to [TASI1, TASI2, TASI3, ..., TASI20], the converted data attribute is defined as tasiList, the array length is 20, and it is directly shortened to 1/50 of the original, which greatly saves the storage space of AMF entities, SMF entities and NRF entities, reducing the The amount of data transmitted between the several core network network function modules.

Therefore, when the caller of the network function service registration is an AMF entity or an SMF entity, the registration process is shown in Figure 7, including:

Step 701: when the service caller is the AMF entity and the SMF entity, the AMF entity or the SMF entity converts the service area attribute taiList in its own NFProfile into a tasiList;

Step 702: the service invocation direction sends a request to the NRF entity, the carrying parameter is NFProfile, and the method is PUT;

Step 703: If the request is successful, the status code 201 is returned, and the NRF entity saves the NFProfile of the service caller.

Therefore, when the AMF entity selects the appropriate SMF entity for service discovery during the session establishment phase, the tasiList in the NFProfile of the target SMF entity obtained by the AMF entity from the NRF entity is much smaller than the previous taiList data volume.

In the embodiment of the present invention, the TA in the original TAI is recombined with a preset granularity, and the formed new service area attribute tasiList is much smaller than the previous taiList data, which realizes the optimization of the service area attribute and saves the storage space. At the same time, the amount of transmitted data is reduced, and the transmission delay is shortened.

The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (10)

1. the setting method of a tracking area identification code TAI, is characterized in that, the method comprises: Combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList; The new service area attribute tasiList is sent. 2. The method according to claim 1, wherein the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, comprising: TA1, TA2, TA3, ..., TAN in the TAI are grouped into a total of N TAs, the number of TAs in each group is the same, and the serial numbers of the TAs in each group are consecutive; the preset granularity is a group of TAs; Said N is the serial number of TA, which is an integer. 3. The method according to claim 2, wherein the preset granularity is represented as a tracking area set identifier TASI, and correspondingly, Each group of TA is denoted as TASI _i ; the i is greater than or equal to 1 and less than N. 4. The method according to claim 1, wherein, in the network function service registration process, the sending the new service area attribute tasiList comprises: A service registration request is sent; the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request. 5. the setting method of a tracking area identification code TAI, is characterized in that, the method comprises: Receive a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity; The new service area attribute tasiList is stored. 6. The method according to claim 5, wherein after storing the new service area attribute tasiList, the method further comprises: receive service discovery requests; Return a message carrying the new service area attribute tasiList. 7. a setting device of tracking area identification code TAI, is characterized in that, this device comprises: A setting module is used to combine the TAs in the TAI with a preset granularity to form a new service area attribute tasiList; A sending module, configured to send the new service area attribute tasiList. 8. the setting device of a tracking area identification code TAI, is characterized in that, this device comprises: a receiving module for receiving a new service area attribute tasiList; the new service area attribute tasiList is: formed by combining the TAs in the TAI with a preset granularity; A storage module for storing the new service area attribute tasiList. 9. A device for setting a tracking area identification code TAI, characterized in that the device comprises: a processor and a memory for storing a computer program that can run on the processor, Wherein, when the processor is configured to execute the computer program, the steps of the method according to any one of claims 1-4, or the steps of the method according to claim 5 or 6 are executed. 10. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the method described in any one of claims 1-4 or claim 5 are realized. or step 6 of the method.

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