CN115633390B - IAB base station-based mobile network access regulation and control method and system - Google Patents
IAB base station-based mobile network access regulation and control method and system Download PDFInfo
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- CN115633390B CN115633390B CN202211332409.4A CN202211332409A CN115633390B CN 115633390 B CN115633390 B CN 115633390B CN 202211332409 A CN202211332409 A CN 202211332409A CN 115633390 B CN115633390 B CN 115633390B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
Abstract
The application discloses a mobile network access regulation and control method and a system based on an IAB base station, wherein the method comprises the following steps: configuring a position analysis application function for a core network; the position analysis application function calculates and constructs a real-time position topology network of the user equipment according to the user position information of the current access network of the user equipment, wherein the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station; the core network dynamically formulates and issues an access strategy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station; the method solves the management problem of accessing the user equipment to the IAB base station, optimizes the access control of accessing the user equipment to the IAB base station, can optimally ensure the communication quality of the user equipment, and improves the service capability of the IAB network in the whole area.
Description
Technical Field
The application relates to the technical field of wireless communication based on relay resources, in particular to a mobile network access regulation and control method and system based on an IAB (inter-access base station).
Background
With the acceleration of 5G construction, 5G coverage has been realized in many areas, a large number of 5G repeater stations are deployed, and communication is performed between the 5G repeater stations through optical fibers. For some areas, such as villages in cities, large cells, etc., limited to geographical locations, 5G repeater stations cannot be deployed in place. For this purpose, IAB base stations are now commonly used to solve this problem. An IAB base station (Integrated Access and Backhaul access and backhaul integrated base station) is that the base station integrates a wireless access link and a wireless backhaul link, wherein the wireless access link is a communication link between a UE (User Equipment) and the IAB base station, and the wireless backhaul link is a communication link between the IAB base stations and is used for data backhaul, so that the IAB base station does not need a wired transmission network for data backhaul. Based on the method, the IAB base station is easier to deploy in a dense scene, the burden of deploying a wired transmission network is reduced, the IAB base station is matched with the 5G repeater base station, and the defect that the 5G repeater base station is limited by geographic positions in some areas is overcome.
For an IAB base station, two types are classified, one is IAB-node and the other is IAB-node. IAB-donor is equivalent to a host base station of Relay, and is a station with optical fiber or microwave for backhaul, while IAB-node is a micro station deployed in an area which is not covered by a macro station, and is not required to be backhaul by optical fiber or microwave, and is directly backhaul by millimeter wave (or Cband) of 5G.
Although the IAB base station solves the problem of geographical location limitation of the 5G repeater, for the current 5G core network, a control protocol for managing the connection between the UE and the IAB base station is not configured, and therefore, how to manage the access of the UE to the IAB base station (generally, IAB-node) becomes an industry requirement.
Disclosure of Invention
The application aims to provide an access regulation and control method and system for an IAB base station based mobile network, which can intelligently manage access of user equipment to the IAB base station so as to improve communication quality of regional users and resource utilization rate of the IAB base station.
In order to achieve the above object, the present application discloses a mobile network access regulation and control method based on an IAB base station, which includes:
configuring a position analysis application function for a core network;
after the core network obtains the network access of the user equipment through the IAB base station, the position analysis application function calculates and constructs a real-time position topology network of the user equipment according to the user position information of the current network access of the user equipment, wherein the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station;
the core network dynamically formulates and issues an access strategy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station;
the access strategy is used for dynamically regulating and controlling the IAB base station accessed by the user equipment currently.
Preferably, the method for dynamically regulating and controlling the IAB base station accessed by the user equipment by the core network according to the access strategy comprises the following steps:
counting the residual access capacity of each IAB base station in the real-time position topological network;
presetting a plurality of reference capacities matched with different time windows respectively for each IAB base station according to the geographic position of each IAB base station;
defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected;
and accessing the current user equipment to the nearest base station to be selected.
Preferably, the core network is a 5G architecture, and the core network analyzes the real-time location topology network through a network data analysis function or a policy control function, and formulates the access policy.
Preferably, the location analysis application function is located in a network application function or a location management function in the core network.
The application also discloses a mobile network access regulation and control system based on the IAB base station, which comprises:
the system comprises a position analysis application function, a strategy analysis function and a strategy regulation function which are arranged in a core network, wherein the position analysis application function is used for calculating and constructing a real-time position topology network of user equipment according to the user position information of the current network access of the user equipment, and the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station;
the policy analysis function is used for dynamically making and issuing an access policy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station;
and the strategy regulation function is used for dynamically regulating and controlling the IAB base station accessed by the user equipment according to the access strategy.
Preferably, the policy regulation function comprises a capacity statistics module, a benchmark setting module, a definition module and an execution module;
the capacity statistics module is used for counting the residual access capacity of each IAB base station in the real-time position topological network;
the reference setting module is used for presetting a plurality of reference capacities matched with different time windows respectively for each IAB base station according to the geographic position of each IAB base station;
the definition module is used for defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected;
and the execution module is used for accessing the current user equipment to the nearest base station to be selected.
Preferably, the core network is a 5G architecture, and a network data analysis function or a policy control function in the core network is used as the policy analysis function and the policy regulation function.
Preferably, the location analysis application function is located in a network application function or a location management function in the core network.
The application also discloses a mobile network access regulation and control system based on the IAB base station, which comprises:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the IAB base station-based mobile network access regulation method as described above.
The application also discloses a computer readable storage medium comprising a computer program executable by a processor to perform an IAB base station based mobile network access regulation method as described above.
Compared with the prior art, the technical scheme of the application is that the core network is provided with the position analysis application function, after the user equipment is accessed to one of the IAB base stations at random and is accessed to the network, the core network analyzes the position of the user equipment and the positions of the peripheral IAB base stations through the position analysis application function so as to form a real-time position topology network, and then the core network makes a dynamic and optimized access strategy according to the real-time position topology network so as to control the user equipment to access the current optimal IAB standard; therefore, the technical scheme solves the management problem of accessing the IAB to the user equipment, optimizes the access control of accessing the IAB to the user equipment, can optimally guarantee the communication quality of the user equipment, and improves the service capability of the IAB network in the whole area.
Drawings
Fig. 1 is a flowchart of an access control method according to an embodiment of the present application.
Fig. 2 is a flowchart of user location reporting in an IAB scenario in an embodiment of the present application.
Fig. 3 is a flowchart of access control of a user in an IAB scenario in an embodiment of the present application.
Fig. 4 is a schematic view of user access in an IAB scenario in the prior art.
Fig. 5 is a schematic diagram of an access control system according to an embodiment of the present application.
Fig. 6 is a schematic diagram of the strategy control function of fig. 5.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present application in detail, the following description is made in connection with the embodiments and the accompanying drawings.
The embodiment discloses a mobile network access regulation and control method based on an IAB (inter-access base station), which is used for intelligently regulating and controlling the IAB connected with User Equipment (UE) by a core network when the UE accesses the network through the IAB, so that the communication quality of the UE is improved. The core network in this embodiment is a 5G core network, or other communication networks compatible with the 5G core network. In addition, the UE in this embodiment may be a mobile phone, a computer, and other networking terminal electronic devices.
In order to facilitate the description of the access control method in this embodiment, a simple description is first made of the UE access procedure in the scenario of the IAB base station. As shown in fig. 4, in the scenario of the IAB base station, the UE is accessed with two scenarios, namely, the IAB-node directly and the IAB-donor carry out backhaul; second, IAB-node is passed back to IAB-donor multiple times.
For the first scene, when the signal of the UE is blocked, no 5G signal of the IAB-donor exists, the UE is accessed through the signal transmitted by the IAB-node, and the IAB-node transmits the processed signal back to the IAB-donor. In a second scenario, when both the IAB-node and the IAB-donor near the UE are blocked, the UE accesses the IAB-node farther, and relays back through the IAB-node, and finally reaches the IAB-donor.
Based on the above described operation mode of the IAB base station, as shown in fig. 1, the access regulation method in this embodiment includes the following steps:
s1: configuring a position analysis application function for a core network;
s2: when the core network acquires the network access of the UE through the IAB base stations, the UE can access the network through any IAB base station, and the position analysis application function calculates and constructs a real-time position topology network of the UE according to the position information of the user currently accessing the network of the UE, wherein the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the UE and the relative position information of the UE and each IAB base station; in addition, the user location information in this embodiment includes the ID of the IAB base station to which the UE is currently connected, the IMSI of the UE, the tracking area code TAC, and the geographic location calculated by the LEM (location management function in the 5G core network).
S3: the core network dynamically formulates and issues an access strategy according to the position topology information between the UE and all the IAB base stations in the real-time position topology network and the working state of each IAB base station (including the current access capacity of the IAB base station, whether the IAB base station works normally, whether the IAB base station is in a limit and the like);
s4: and the UE dynamically regulates and controls the IAB base station accessed by the current UE according to the access strategy.
For the access regulation method in the above embodiment, taking a core network with a 5G architecture as an example, the core network analyzes a real-time location topology network through a network data analysis function (NWDAF) or a Policy Control Function (PCF), and formulates an access policy. In addition, the location analysis application function is located in a network Application Function (AF) or a Location Management Function (LMF) in the core network.
The above access regulation method will be described in further detail below by taking a 5G system in which a location analysis application function is located in AF and is analyzed by NWDAF and a policy is formulated as an example.
As shown in fig. 2, based on the above access regulation method, in the scenario of the IAB base station, the user location reporting procedure is as follows:
(1) the NWDAF or the location analysis application sends a request for reporting the user location information to a mobile location center Gateway (GMLC);
(2) the GMLC queries a unified data management function (UDM) for access and mobility management (AMF) information registered by the user;
(3) the GMLC sends a request for inquiring the user position to the inquired AMF;
(4) the AMF sends a user position inquiry request to the LMF;
(5) the LMF calculates position data according to the information reported by the user and a positioning algorithm;
(6) the LMF returns the calculated positioning information (the actual geographic position of the UE) to the AMF;
(7) the AMF returns information including the user location to the GMLC;
(8) the GMLC returns user location information to the NWDAF and location analysis application.
As shown in fig. 3, the nwdaf performs access control on the UE based on the following procedure:
(1) the UE is online or performs mobile switching;
(2) the NWDAF issues a request to acquire user location information of the UE from any one of NF (network function), OAM (operation, administration and maintenance function), and AF (e.g., NF) in the core network server;
(3) NF reports user position information of UE to NWDAF;
(4) the NWDAF sends the user position information of the UE to a user position analysis application for analysis, and returns an analysis result to the NWDAF;
(5) performing strategy analysis processing on an analysis result returned by the position analysis application by the NWDAF to determine an optimized access strategy, and returning the relevant access strategy to the NF;
(6) and the UE performs access and mobility management according to the issued access strategy.
Based on the access regulation method, the management problem of accessing the IAB base station to the user equipment is solved, when the UE is accessed to the network, the NWDAF formulates a relevant access strategy according to the real-time position topology network provided by the position analysis application function, for example, in the process of connecting or moving the UE, the access control strategy of accessing the IAB-node by the UE is formulated under a specific geographic position, a time window or other conditions/criteria, and the access (permission/limitation) of the IAB-node by the UE is controlled. Therefore, the access control of the user equipment to the IAB base station is optimized, the communication quality of the user equipment can be optimally ensured, and the service capability of the IAB network in the whole area is improved.
Further, the method for dynamically regulating and controlling the IAB base station accessed by the current user equipment by the core network according to the access strategy comprises the following steps:
firstly, counting the residual access capacity of each IAB base station in a real-time position topological network;
then, presetting a plurality of reference capacities matched with different time windows for each IAB according to the geographic position of each IAB;
and defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected;
and finally, accessing the current user equipment to the nearest base station to be selected.
In this embodiment, when NWDAF analyzes the position of the UE and finds that the resource or user access data of the IAB base station connected to the UE exceeds a normal threshold, an optimal access policy is issued to NF or OAM or AF, so as to limit the UE from accessing from the IAB base station with insufficient or abnormal resource, so that the UE accesses to the optimal IAB base station, and ensure the service quality of the UE. In addition, the NWDAF can analyze real-time and historical data of the user position in the area and the area period by calling the position analysis application function, and finally can optimally control the access of the UE in the mobile management, so that the service quality of the user and the whole area network is ensured, and the pressure of the IAB base station and the influence caused by the failure of the IAB base station are reduced.
In another preferred embodiment of the present application, an IAB base station-based mobile network access control system is also disclosed, as shown in fig. 5, which includes a location analysis application function, a policy analysis function, and a policy control function disposed in a core network.
The position analysis application function is used for calculating and constructing a real-time position topological network of the user equipment according to the user position information of the current network access of the user equipment, wherein the real-time position topological network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station. Specifically, the location analysis application function comprises an analysis module and a storage module, wherein the analysis module is used for completing the analysis function and generating a real-time location topology network. The memory module comprises a first memory unit, a second memory unit and a third memory unit. The first storage unit is used for storing real-time position topology information formed after intelligent analysis by the analysis module. The second storage unit is used for storing the geographical environment information of the current user equipment detected manually, so that the policy analysis function can conveniently make a better access policy. The third storage unit is used for storing the user position information sent by the NWDAF after the NWDAF is analyzed by the optimization strategy so as to facilitate the subsequent analysis of the historical data.
And the policy analysis function is used for dynamically making and issuing an access policy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station.
And the strategy regulation function is used for dynamically regulating and controlling the IAB base station accessed by the user equipment according to the access strategy.
Further, as shown in fig. 6, the policy regulation function includes a capacity statistics module, a benchmark setting module, a definition module, and an execution module.
And the capacity statistics module is used for counting the residual access capacity of each IAB base station in the real-time position topological network.
The reference setting module is used for presetting a plurality of reference capacities matched with different time windows respectively for each IAB base station according to the geographic position of each IAB base station.
And the definition module is used for defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected.
And the execution module is used for accessing the current user equipment to the nearest base station to be selected.
Further, the core network is a 5G architecture, and a network data analysis function (NWDAF) or a Policy Control Function (PCF) in the core network is used as the policy analysis function and the policy regulation function.
Further, the location analysis application function is located in a network Application Function (AF) or a Location Management Function (LMF) in the core network.
It should be noted that, the working principle and working manner of the mobile network access control system in this embodiment are detailed in the above mobile network access control method, and are not described herein again.
The present application also discloses another mobile network access regulation system comprising one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the mobile network access regulation method as described above. The processor may be a general-purpose central processing unit (Central Processing Unit, CPU), microprocessor, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits for executing related programs to implement the functions required to be performed by the modules in the mobile network access control system of the method embodiment of the present application, or to perform the mobile network access control method of the method embodiment of the present application.
The application also discloses a computer readable storage medium comprising a computer program executable by a processor to perform a mobile network access regulation method as described above. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a read-only memory (ROM), or a random-access memory (random access memory, RAM), or a magnetic medium, for example, a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, for example, a digital versatile disk (digital versatile disc, DVD), or a semiconductor medium, for example, a Solid State Disk (SSD), or the like.
Embodiments of the present application also disclose a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the mobile network access regulation method.
The foregoing description of the preferred embodiments of the application is not intended to limit the scope of the claims, which follow, as long as the scope of the application is defined by the claims.
Claims (10)
1. An access regulation and control method for a mobile network based on an IAB base station is characterized by comprising the following steps:
configuring a position analysis application function for a core network;
after the core network obtains the network access of the user equipment through the IAB base station, the position analysis application function calculates and constructs a real-time position topology network of the user equipment according to the user position information of the current network access of the user equipment, wherein the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station;
the core network dynamically formulates and issues an access strategy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station;
the access strategy is used for dynamically regulating and controlling the IAB base station accessed by the user equipment currently.
2. The method for controlling access to a mobile network based on an IAB base station according to claim 1, wherein the method for dynamically controlling the IAB base station currently accessed by the ue by the core network according to the access policy includes:
counting the residual access capacity of each IAB base station in the real-time position topological network;
presetting a plurality of reference capacities matched with different time windows respectively for each IAB base station according to the geographic position of each IAB base station;
defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected;
and accessing the current user equipment to the nearest base station to be selected.
3. The IAB base station-based mobile network access regulation method according to claim 1, wherein the core network is a 5G architecture, and the core network analyzes the real-time location topology network through a network data analysis function or a policy control function and formulates the access policy.
4. The IAB base station-based mobile network access regulation method of claim 1, wherein the location analysis application function is located in a network application function or a location management function in a core network.
5. An IAB base station-based mobile network access regulation and control system, comprising:
the system comprises a position analysis application function, a strategy analysis function and a strategy regulation function which are arranged in a core network, wherein the position analysis application function is used for calculating and constructing a real-time position topology network of user equipment according to the user position information of the current network access of the user equipment, and the real-time position topology network comprises the position information of all IAB base stations in the current position signal range of the user equipment and the relative position information of the user equipment and each IAB base station;
the policy analysis function is used for dynamically making and issuing an access policy according to the position topology information between the user equipment and all the IAB base stations in the real-time position topology network and the working state of each IAB base station;
and the strategy regulation function is used for dynamically regulating and controlling the IAB base station accessed by the user equipment according to the access strategy.
6. The IAB base station-based mobile network access regulation system of claim 5, wherein the policy regulation function includes a capacity statistics module, a reference setting module, a definition module, and an execution module;
the capacity statistics module is used for counting the residual access capacity of each IAB base station in the real-time position topological network;
the reference setting module is used for presetting a plurality of reference capacities matched with different time windows respectively for each IAB base station according to the geographic position of each IAB base station;
the definition module is used for defining the IAB base station with the current residual access capacity larger than the reference capacity as a base station to be selected;
and the execution module is used for accessing the current user equipment to the nearest base station to be selected.
7. The IAB base station-based mobile network access regulation system of claim 5, wherein the core network is a 5G architecture, and a network data analysis function or a policy control function in the core network is used as the policy analysis function and the policy regulation function.
8. The IAB base station-based mobile network access regulation system of claim 5, wherein the location analysis application function is located in a network application function or a location management function in a core network.
9. An IAB base station-based mobile network access regulation and control system, comprising:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the IAB base station-based mobile network access regulation method of any of claims 1 to 4.
10. A computer readable storage medium comprising a computer program executable by a processor to perform the IAB base station-based mobile network access regulation method according to any one of claims 1 to 4.
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