CN111417105B - 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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- CN111417105B CN111417105B CN201910013575.XA CN201910013575A CN111417105B CN 111417105 B CN111417105 B CN 111417105B CN 201910013575 A CN201910013575 A CN 201910013575A CN 111417105 B CN111417105 B CN 111417105B
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- 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
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Abstract
The embodiment of the invention provides a method, a device and a computer readable storage medium for setting TAI, wherein the method comprises the following steps: combining the TAs in the TAI according to a preset granularity to form a new service area attribute tasiList; and sending the new service area attribute tasiList.
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 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 Network storage Function (NRF). The AMF entity is a termination point of the RAN signaling interface N2, a termination point of the NAS signaling and is responsible for encryption and complete protection of NAS information, UE registration, access, mobility, authentication, short message transparent transmission and other functions. 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 or the SMF entity is registered in the NRF entity through service registration, the supported TAIs are transmitted to the NRF entity in an array form. When the AMF entity performs service discovery to find a needed SMF entity, the NRF entity transmits NFProfile of the SMF entity needed by the AMF entity to the AMF entity together, wherein the NFProfile includes a TAI set supported by the SMF entity, namely a taiList 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 taiList 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 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 a preset granularity to form a new service area attribute tasiList;
and sending the new service area attribute tasiList.
Wherein, the combining the TAs in the TAI with a preset granularity to form a new service area attribute tasiList includes:
grouping N TAs in 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 TASI i (ii) a And i is more than or equal to 1 and less than N.
Wherein, in the network function service registration process, the sending the new service area attribute tasiList includes:
sending a service registration request; and the new service area attribute tasiList is carried in the 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 tasiList; the new service area attribute tasiList is: combining TA in the TAI with a preset granularity;
storing the new service area attribute tasiList.
Optionally, after storing the new service area attribute tasiList, the method further includes:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasiList.
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 tasiList;
and the sending module is used for sending the new service area attribute tasiList.
The embodiment of the invention also provides a device for setting the tracking area identification code TAI, which comprises:
a receiving module, configured to receive a new service area attribute tasiList; the new service area attribute tasiList is: combining TA in the TAI with a preset granularity;
and the storage module is used for storing the new service area attribute tasiList.
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.
According to the TAI setting method, the TAI setting device and the computer readable storage medium provided by the embodiment of the invention, TAs in the TAI are combined according to the preset granularity to form a new service area attribute tasiList; and sending the new service area attribute tasiList. The embodiment of the invention recombines the TA in the original TAI with the preset granularity again to form a new service area attribute tasiList with a data volume much smaller than that of the previous taiList, thereby realizing the optimization of the service area attribute, saving the storage space, reducing the transmission data volume and shortening the transmission time delay.
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:
step 101: combining the TAs in the TAI according to a preset granularity to form a new service area attribute tasiList;
step 102: and sending the new service area attribute tasiList.
The embodiment of the invention recombines the TA in the original TAI with the preset granularity to form a new service area attribute tasiList with a data volume much smaller than that of the previous taiList, thereby realizing the optimization of the service area attribute, saving the storage space, reducing the transmission data volume and shortening the transmission delay.
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 tasiList includes:
grouping N TAs in 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 TASI i (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 process, the sending the new service area attribute tasiList includes:
sending a service registration request; and 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 further provides a method for setting TAI, which is applicable to an NRF entity side and includes:
step 201: receiving a new service area attribute tasiList; the new service area attribute tasiList is: combining TA in the TAI with a preset granularity;
step 202: storing the new service area attribute tasiList.
In this embodiment of the present invention, after storing the new service area attribute tasiList, the method further includes:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasiList.
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 the TAs in the TAI with a preset granularity to form a new service area attribute tasiList;
a sending module 302, configured to send the new service area attribute tasiList.
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 tasiList, including:
grouping N TAs in 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 TASI i (ii) a And i is more than or equal to 1 and less than N.
In an embodiment of the present invention, in the network function service registration process, the sending module 302 sends the new service area attribute tasiList, including:
sending a service registration request; and 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 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 tasiList; the new service area attribute tasiList is: combining TA in the TAI with a preset granularity;
a storing module 402, configured to store the new service area attribute tasiList.
In this embodiment of the present invention, after the storing module 402 stores the new service area attribute tasiList,
the receiving module 401 is further configured to receive a service discovery request; and returning a message carrying the new service area attribute tasiList.
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, when running the computer program, perform:
combining the TAs in the TAI according to a preset granularity to form a new service area attribute tasiList;
and sending the new service area attribute tasiList.
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, when the computer program is run, the following steps:
grouping N TAs in 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 identifier TASI and, correspondingly,
each group TA is denoted TASI i (ii) a And i is more 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 the computer program is run:
sending a service registration request; and the new service area attribute tasiList is carried in the 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 tasiList; the new service area attribute tasiList is: combining TA in the TAI with a preset granularity;
and storing the new service area attribute tasiList.
After storing the new service area attribute tasiList, 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 tasiList.
It should be noted that: in the apparatus provided in the foregoing embodiment, when performing TAI setting, the division of each program module is merely used as an example, and in practical applications, the processing allocation may be completed by different program modules as needed, 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 the specific implementation process thereof is described in the method embodiments, which is 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 a preset granularity to form a new service area attribute tasiList;
and sending the new service area attribute tasiList.
When the TA in the TAI is combined with a preset granularity to form a new service area attribute tasiList, the computer program, when executed by the processor, further performs:
grouping N TAs in 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 TASI i (ii) a And i is more than or equal to 1 and less than N.
In the network function service registration process, when the computer program is executed by a processor when the new service area attribute tasiList is sent, further performing:
sending a service registration request; and 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 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 tasiList; the new service area attribute tasiList is: the TA in the TAI is combined according to a preset granularity;
storing the new service area attribute tasiList.
After storing the new service area attribute tasiList, 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 tasiList.
The present invention is described below with reference to scene 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 caller 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 the amfInfo attribute; the amfInfo contains a taiList attribute, which is in the form of an array of TAIs, and represents a TAI list that the registered AMF entity can service, i.e. a service area.
Similarly, when the service caller is an SMF entity, its NFProfile contains an smfnfo attribute; the smfInfo contains a taiList attribute, which is in the form of an array of TAIs, and represents a list of TAIs that the registered SMF entity can service, i.e. 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.
The NFProfile returned by the result of service discovery may be found to contain amfnfo and smfnfo. Meaning that when the service invoker wants to discover the AMF entity or the SMF entity, the returned result will contain the corresponding attribute. Similarly, amfInfo and smfInfo both contain a taiList attribute in the form of an array of TAIs that represents 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 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 a concept of a higher layer is introduced, such as TASI (Tracking Area Set Identity). If the SMF entity is assumed to support 1000 TAs, TA1-TA1000 for TAI, and the original taiList attribute is of the form [ TA1, TA2, TA3, \ 8230, TA1000], where TAs is composed with different values as granularity and represented by TASI, the length of the taiList array can be effectively reduced.
For example: with 50 as granularity, TASI1 represents [ TA1, TA2, \ 8230;, TA50], TASI2 represents [ TA51, TA52, TA53, \ 8230;, TA100], then the form of taiList attribute is converted into [ TASI1, TASI2, TASI3, \ 8230;, TASI20], the converted data attribute is defined as tasiList, the length of the array is 20, the length is directly shortened to 1/50 of the original length, the storage space of AMF entity, SMF entity and NRF entity is greatly saved, and the data quantity transmitted among the core network function modules is reduced.
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 the service caller is AMF entity and SMF entity, the AMF entity or SMF entity converts the service area attribute taiList in NFProfile of the AMF entity or SMF entity into tasiList;
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 tasiList in the NFProfile of the target SMF entity acquired by the AMF entity from the NRF entity is much smaller than the previous taiList data size.
The embodiment of the invention recombines the TA in the original TAI with the preset granularity again to form a new service area attribute tasiList with a data volume much smaller than that of the previous taiList, thereby realizing the optimization of the service area attribute, saving the storage space, reducing the transmission data volume and shortening the transmission time delay.
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 (9)
1. A method for setting a Tracking Area Identification (TAI) code, the method comprising:
grouping N TANs in the TAI, wherein the number of the TANs in each group is the same, the serial numbers of the TAs in each group are continuous from front to back, and N is the serial number of the TA and is an integer;
combining the TA with a preset granularity to form a new service area attribute tasiList; the preset granularity is a group of TA;
and sending the new service area attribute tasiList.
2. The method according to claim 1, wherein the preset granularity is expressed as a tracking area set identity, TASI, and accordingly,
each group TA is denoted TASI i (ii) a And i is more than or equal to 1 and less than N.
3. The method of claim 1, wherein sending the new service area attribute tasiList comprises:
in the network function service registration process, sending a service registration request; and the new service area attribute tasiList is carried in the network function file NFProfile carried in the service registration request.
4. A method for setting a Tracking Area Identity (TAI), the method comprising:
receiving a new service area attribute tasiList; the new service area attribute tasiList is: grouping N TANs in the TAI, wherein the number of the TANs in each group is the same, the serial numbers of the TANs in each group are continuous from front to back, and N is the serial number of the TA and is an integer; TA is formed by combining preset granularity; the preset granularity is a group of TA;
storing the new service area attribute tasiList.
5. The method of claim 4, wherein after storing the new service area attribute tasiList, the method further comprises:
receiving a service discovery request;
and returning a message carrying the new service area attribute tasiList.
6. An apparatus for setting a Tracking Area Identity (TAI), the apparatus comprising:
the device comprises a setting module, a processing module and a control module, wherein the setting module is used for grouping N TANs in the TAI, the number of the TANs in each group is the same, the serial numbers of the TAs in each group are continuous from front to back, and N is the serial number of the TA and is an integer; combining the TA with a preset granularity to form a new service area attribute tasiList; the preset granularity is a group of TA;
and the sending module is used for sending the new service area attribute tasiList.
7. An apparatus for setting a Tracking Area Identity (TAI), the apparatus comprising:
a receiving module, configured to receive a new service area attribute tasiList; the new service area attribute tasiList is: grouping N TANs in the TAI, wherein the number of the TANs in each group is the same, the serial numbers of the TANs in each group are continuous from front to back, and N is the serial number of the TA and is an integer; TA is formed by combining preset granularity; the preset granularity is a group of TA;
and the storage module is used for storing the new service area attribute tasiList.
8. 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 1-3, or to perform the steps of the method of claim 4 or 5, when running the computer program.
9. 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 3 or carries out the steps of the method of claim 4 or 5.
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