CN111417105A - TAI setting method and device and computer readable storage medium - Google Patents
TAI setting method and device and computer readable storage medium Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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Abstract
The embodiment of the invention provides a method and a device for setting a TAI and a computer readable storage medium, wherein the method comprises the steps of combining TAs in the TAI according to preset granularity to form a new service area attribute tasi L ist, and sending the new service area attribute tasi L ist.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for setting a Tracking Area Identity (TAI), and a computer-readable storage medium.
Background
In a 5G core network service network architecture, core network elements in the traditional sense are split, and software and hardware decoupling is realized. The entire network architecture consists of several network functions. The serving network architecture defined by 3GPP further splits each network function into several self-contained, self-managed, reusable network function services. Each network function can call other or own network function services, thereby realizing the characteristics of flexibility and convenience.
The network functions of the 5G core network referred to herein mainly include a network function carrying attribute data of its own service area: access and Mobility Management Function (AMF) and Session Management Function (SMF), and further includes network storage Function (NRF). The AMF entity is a termination point of a RAN signaling interface N2, a termination point of NAS signaling and is responsible for functions of encryption and complete protection of NAS information, registration of UE, access, mobility, authentication, short message transmission and the like. The SMF entity is mainly responsible for session establishment, modification and release, IP address allocation management of the UE, DHCP functions, selection and control of UPF for the session, determination of SSC pattern of the session, and collection of charging data. The NRF entity supports registration, update, discovery, and deletion of network functions/network function services. In order to realize the network function service management automation, other network function entities first need to register in the NRF entity to work or be called by other network functions.
In the service registration and service discovery process, when an AMF entity or an SMF entity is registered in an NRF entity, it needs to carry its service range information, that is, a Tracking Area Identity (TAI) set supported by the AMF entity or the SMF entity; when a session is established, in the process of selecting a proper SMF entity through service discovery by the AMF entity, the NRF entity brings down the TAI set supported by the SMF entity, so that the AMF entity selects the SMF entity to serve. When the session is established, the AMF entity selects a suitable SMF entity through service discovery.
When the AMF entity searches for the needed SMF entity through service discovery, the NRF entity transmits the NFProfile of the SMF entity needed by the AMF entity to the AMF entity together, wherein the NFProfile comprises the TAI set supported by the SMF entity, namely the TAI L ist attribute in smfInfo.
However, generally, an AMF entity or an SMF entity may have a relatively large area, and the number of TAs is relatively large, so that the TAI L ist attribute is an array including many elements, which results in a large amount of data transmitted between the AMF entity or the SMF entity and the NRF entity, and between the NRF entity and the AMF entity, and a long transmission time, and at the same time, the storage resources of the AMF entity, the SMF entity, and the NRF entity occupy more resources, and have a certain redundancy, so that the data storage and transmission mode of the service area attribute TAI needs to be optimized.
Disclosure of Invention
In view of this, embodiments of the present invention are intended to provide a method, an apparatus, and a computer-readable storage medium for setting a TAI.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for setting a tracking area identification code (TAI), which comprises the following steps:
combining the TAs in the TAI according to preset granularity to form a new service area attribute tasi L ist;
and sending the new service area attribute tasi L ist.
Wherein, the combining the TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist includes:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
Wherein the preset granularity is expressed as a tracking area set identity, TASI, and correspondingly,
each group TA is denoted TASIi(ii) a And i is more than or equal to 1 and less than N.
In the network function service registration procedure, the sending the new service area attribute tasi L ist includes:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
The embodiment of the invention also provides a method for setting the tracking area identification code TAI, which comprises the following steps:
receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
the new service area attribute tasi L ist is stored.
Optionally, after storing the new service area attribute tasi L ist, the method further includes:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasi L ist.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises the following components:
a setting module, configured to combine TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist;
and the sending module is used for sending the new service area attribute tasi L ist.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises the following components:
the receiving module is used for receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
and the storage module is used for storing the new service area attribute tasi L ist.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises the following components: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the above-mentioned method.
The method, the device and the computer readable storage medium for setting the TAI provided by the embodiment of the invention combine TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist, and send the new service area attribute tasi L ist.
Drawings
Fig. 1 is a first schematic flow chart of a method for setting a TAI according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for setting a TAI according to an embodiment of the present invention;
FIG. 3 is a first schematic structural diagram of a TAI setup apparatus according to an embodiment of the present invention;
FIG. 4 is a second schematic structural diagram of a TAI setup apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a network function service registration process in the related art;
fig. 6 is a schematic diagram illustrating a network function service discovery process in the related art;
fig. 7 is a schematic diagram of a network function service registration process according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a method for setting a TAI, as shown in fig. 1, where the method is applicable to a service caller, and includes:
According to the embodiment of the invention, TA in the original TAI is recombined at the preset granularity, and the formed new service area attribute tasi L ist is much smaller than the data volume of the previous TAI L ist, so that the optimization of the service area attribute is realized, the storage space is saved, the data volume of transmission is reduced, and the transmission delay is shortened.
In this embodiment of the present invention, the combining the TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist includes:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
In the embodiment of the present invention, the preset granularity is denoted as a tracking area set identifier TASI, and correspondingly, each group of TAs is denoted as TASIi(ii) a And i is more than or equal to 1 and less than N.
In this embodiment of the present invention, in the network function service registration procedure, the sending the new service area attribute tasi L ist includes:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
An embodiment of the present invention further provides a method for setting TAI, as shown in fig. 2, where the method is applicable to an NRF entity side, and includes:
In this embodiment of the present invention, after storing the new service area attribute tasi L ist, the method further includes:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasi L ist.
In order to implement the foregoing method embodiment, an embodiment of the present invention further provides a device for setting a TAI, where as shown in fig. 3, the device includes:
a setting module 301, configured to combine TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist;
a sending module 302, configured to send the new service area attribute tasi L ist.
In this 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 tasi L ist, including:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
In the embodiment of the present invention, the preset granularity is denoted as a tracking area set identifier TASI, and correspondingly, each group of TAs is denoted as TASIi(ii) a And i is more than or equal to 1 and less than N.
In this embodiment of the present invention, in the network function service registration procedure, the sending module 302 sends the new service area attribute tasi L ist, including:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
An embodiment of the present invention further provides a device for setting a tracking area identification code TAI, where as shown in fig. 4, the device includes:
a receiving module 401, configured to receive a new service area attribute tasi L ist, where the new service area attribute tasi L ist is formed by combining TAs in the TAI according to a preset granularity;
a storage module 402, configured to store the new service area attribute tasi L ist.
In this embodiment of the present invention, after the storage module 402 stores the new service area attribute tasi L ist,
the receiving module 401 is further configured to receive a service discovery request and return a message carrying the new service area attribute tasi L ist.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises the following components: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
combining the TAs in the TAI according to preset granularity to form a new service area attribute tasi L ist;
and sending the new service area attribute tasi L ist.
When the TAs in the TAI are combined with a preset granularity to form a new service area attribute tasi L ist, the processor is further configured to execute, when the computer program is run, the following steps:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
Wherein the preset granularity is expressed as a tracking area set identity, TASI, and correspondingly,
each group TA is denoted TASIi(ii) a And i is more than or equal to 1 and less than N.
In the network function service registration procedure, when the new service area attribute tasi L ist is sent, the processor is further configured to execute, when the computer program is run, the following:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises the following components: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
the new service area attribute tasi L ist is stored.
After storing the new service area attribute tasi L ist, the processor is further configured to, when running the computer program, perform:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasi L ist.
It should be noted that: in the apparatus provided in the foregoing embodiment, when the TAI is set, only the division of each program module is illustrated, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
combining the TAs in the TAI according to preset granularity to form a new service area attribute tasi L ist;
and sending the new service area attribute tasi L ist.
When the TAs in the TAI are combined with a preset granularity to form a new service area attribute tasi L ist, the computer program, when executed by the processor, further performs:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
Wherein the preset granularity is expressed as a tracking area set identity, TASI, and correspondingly,
each group TA is denoted TASIi(ii) a And i is more than or equal to 1 and less than N.
In the network function service registration procedure, when the computer program is executed by a processor when the new service area attribute tasi L ist is sent, the method further performs:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
the new service area attribute tasi L ist is stored.
After storing the new service area attribute tasi L ist, the computer program, when executed by a processor, further performs:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasi L ist.
The invention is described below in conjunction with the scenario embodiments.
First, a network function service registration procedure and a discovery procedure in the related art are described.
The network function service registration process is shown in fig. 5, and includes:
step 501: a service calling party sends a request to an NRF entity, the carried parameter is NFProfile, and the method is PUT;
step 502: if the request is successful, the status code 201 is returned, and the NRF entity stores the NFProfile of the service caller.
As can be seen in standard 29.510, the service invoker needs to include NFProfile in the request body during service registration or update; after the NF registration is successful, the NRF entity saves the NFProfile of the service caller.
When the service caller is the AMF entity, the NFProfile of the service caller contains an amfInfo attribute, and the amfInfo contains a TAI L ist attribute, wherein the format of the attribute is an array of TAIs, and the attribute represents a TAI list which can be served by the registered AMF entity, namely a service area.
Similarly, when the service caller is the SMF entity, the NFProfile of the SMF entity contains an smfInfo attribute, and the smfInfo contains a TAI L ist attribute, the format of the attribute is an array of TAIs, and the table represents a TAI list which can be served by the registered SMF entity, namely a service area.
The network function service discovery process is shown in fig. 6, and includes:
step 601: the service calling direction NRF entity sends a request carrying query parameters, and the method is GET;
step 602: if the request is successful, the status code 200 is returned, and meanwhile, the query result is returned.
It can be seen that, in the service discovery process, after the service caller initiates a request to the NRF entity by querying the relevant parameters, when the request is successful, the NRF entity returns the service that the service caller needs to query to the service caller.
Similarly, the amfInfo and the smfInfo both comprise a TAI L ist attribute, which is in the form of an array of TAIs and represents the service range 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 continuously and uniformly allocated, and there is a certain regularity in the TAI supported by the SMF entity and the AMF entity. In order to optimize the storage of service area attribute data in a core network function module, save storage space, and reduce transmission data volume, an embodiment of the present invention provides a method:
the TAI is further packaged, and the concept of a higher layer is introduced, such as TASI (tracking Area setup), if it is assumed that the SMF entity supports 1000 TAs, the TAI is TA1-TA1000, the original TAI L ist attribute is in the form of [ TA1, TA2, TA3, …, TA1000], where TAs is composed with different values as granularity and is represented by TASI, the length of the TAI L ist array can be effectively reduced.
For example, with 50 as a granularity, TASI1 indicates [ TA1, TA2, …, TA50], TASI2 indicates [ TA51, TA52, TA53, …, TA100], then the form of the tai L ist attribute is changed to [ TASI1, TASI2, TASI3, …, TASI20], the converted data attribute is defined as TASI L ist, the array length is 20, and the data attribute is directly shortened to the original 1/50, thereby greatly saving the storage space of the AMF entity, the SMF entity, and the NRF entity, and reducing the data amount transmitted among the several core network function modules.
Therefore, when the caller of the network function service registration is the AMF entity or the SMF entity, the registration process is as shown in fig. 7, and includes:
step 701, when a service calling party is an AMF entity and an SMF entity, the AMF entity or the SMF entity converts a service area attribute tai L ist in NFProfile of the AMF entity or the SMF entity into tasi L ist;
step 702: a service calling party sends a request to an NRF entity, the carried 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 stores the NFProfile of the service caller.
Therefore, when the AMF entity selects a suitable SMF entity for service discovery in the session establishment phase, the amount of data tasi L ist in the NFProfile of the target SMF entity acquired by the AMF entity from the NRF entity is much smaller than that of the data tai L ist before.
According to the embodiment of the invention, TA in the original TAI is recombined at the preset granularity, and the formed new service area attribute tasi L ist is much smaller than the data volume of the previous TAI L ist, so that the optimization of the service area attribute is realized, the storage space is saved, the data volume of transmission is reduced, and the transmission delay is shortened.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A method for setting a Tracking Area Identification (TAI) code, the method comprising:
combining the TAs in the TAI according to preset granularity to form a new service area attribute tasi L ist;
and sending the new service area attribute tasi L ist.
2. The method according to claim 1, wherein the combining the TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist comprises:
grouping N TAs including TA1, TA2, TA3, … and TAN in the TAI, wherein the number of the TAs in each group is the same, and the serial numbers of the TAs in each group are continuous; the preset granularity is a group of TA; and N is the serial number of TA and is an integer.
3. The method according to claim 2, wherein the preset granularity is expressed as a tracking area set identity, TASI, and accordingly,
each group TA is denoted TASIi(ii) a And i is more than or equal to 1 and less than N.
4. The method of claim 1, wherein in a network function service registration procedure, the sending the new service area attribute tasi L ist comprises:
and sending a service registration request, wherein the new service area attribute tasi L ist is carried in a network function file NFProfile carried in the service registration request.
5. A method for setting a Tracking Area Identification (TAI) code, the method comprising:
receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
the new service area attribute tasi L ist is stored.
6. The method of claim 5, wherein after storing the new service area attribute tasi L ist, the method further comprises:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasi L ist.
7. An apparatus for setting a Tracking Area Identity (TAI), the apparatus comprising:
a setting module, configured to combine TAs in the TAI with a preset granularity to form a new service area attribute tasi L ist;
and the sending module is used for sending the new service area attribute tasi L ist.
8. An apparatus for setting a Tracking Area Identity (TAI), the apparatus comprising:
the receiving module is used for receiving a new service area attribute tasi L ist, wherein the new service area attribute tasi L ist is formed by combining TA in the TAI according to preset granularity;
and the storage module is used for storing the new service area attribute tasi L ist.
9. An apparatus for setting a Tracking Area Identity (TAI), the apparatus comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-4, or to perform the steps of the method of claim 5 or 6, when running the computer program.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4 or carries out the steps of the method of claim 5 or 6.
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| US20110096721A1 (en) * | 2009-10-22 | 2011-04-28 | Kamalaraj Vinod | Systems and methods for selecting tracking areas and reducing paging |
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