Hierarchical satellite communication system networking method and device

Abstract

The invention relates to a hierarchical satellite communication system networking method and device, and belongs to the technical field of satellite communication, and the method comprises the following steps: 1, user network access registration: obtaining user network access information through a bottom layer management and control station, and sending the user network access information to a superior management and control station according to a hierarchy to a top layer management and control station; 2, a source user requests, the source user sends a request for establishing communication connection to a bottom layer management and control station to which the source user belongs, and the request comprises a source address, a destination address and a service type; step 3, resource allocation: the bottom layer management and control station allocates resources according to the target user information and the service type, and if the target user is not in the current level management and control range, a request is sent to the upper level management and control station; and step 4, communication establishment: the source user and the target user establish communication by using the allocated resources, and resource allocation follows a step-by-step application principle from low to high. According to the invention, the problems of resource waste, communication continuation delay, insufficient fault-tolerant capability and the like in the existing satellite communication system are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of satellite communication, and particularly relates to a hierarchical satellite communication system networking method and device. Background Art

[0002] Satellite communication networking means that, through certain technical means, satellite resources are allocated to the sending and receiving end users who need to communicate, and communication is established through satellite resources or resources such as satellite + terrestrial links (such as optical cables, cables). Existing satellite communication networking adopts a centralized management architecture, where a control station (or gateway station) located at the center realizes the allocation of satellite communication resources within the coverage area. It can also be achieved through a decentralized control method, where multiple subnets are simultaneously formed in the resource coverage area; or through a pre-allocated resource method to achieve point-to-point (or point-to-multipoint) communication between some users. There are the following disadvantages:

[0003] (1) Serious resource waste. Centralized allocation requires unified allocation across the entire network, and all applications are processed by one control station, which greatly wastes the computing resources of the control station and the link resources from the user to the control station; decentralized control and point-to-point communication require pre-allocation of resources for each subnet or point-to-point channel, which greatly wastes the frequency resources required for communication services.

[0004] (2) Larger communication connection delay or difficult connection. In the centralized allocation method, all communications are processed by the control station, which brings problems such as larger communication connection delay. The decentralized control and point-to-point communication methods seemingly do not require the control station to process and can establish communication in a small area, but it is difficult for users in different subnets to connect. Even if communication is established through terrestrial links, etc., there are also problems such as longer communication links, especially when the satellite orbit altitude is relatively high, and multiple transfers result in poor communication quality.

[0005] (3) Insufficient fault tolerance or flexibility. The centralized allocation method requires one control station for management, and when the control station fails, the network will become unavailable. Different subnets formed by decentralized control and point-to-point control do not affect each other, but they cannot achieve the seamless access of users within the coverage area, and the flexibility is insufficient.

[0006] In view of the problems of insufficient optimization of resources, communication connection, and fault tolerance during the above-mentioned satellite networking, Starlink and others access the network near the gateway station, but still lack a strategy for unified planning globally based on the communication link requirements of the source user and the destination user to effectively utilize the control and communication resources of satellite networking. Summary of the Invention

[0007] The present invention aims to solve the above problems of the prior art. A hierarchical satellite communication system networking method and device are proposed. The technical solutions of the present invention are as follows:

[0008] A hierarchical satellite communication system networking method comprises the following steps:

[0009] Step 1: User network registration, obtain user network information through the bottom-level control station, and send the user network information to the upper-level control station according to the hierarchy until the top-level control station;

[0010] Step 2: Source user request: The source user sends a request to establish a communication connection to the underlying control station to which it belongs, including the source address, destination address and service type;

[0011] Step 3: Resource allocation: The bottom-level control station allocates resources based on the destination user information and service type. If the destination user is not within the control scope of this level, a request is sent to the upper-level control station.

[0012] Step 4: Communication establishment: The source and destination users use the allocated resources to establish communication. Resource allocation follows the principle of step-by-step application from low to high.

[0013] Furthermore, the resource allocation includes satellite frequency resources and ground link resources, and the resource type is determined according to the service type.

[0014] Furthermore, when a user registers to join the network, the user network access information management module can automatically check the user configuration information and approve the network access, and synchronize the user information to the superior control station.

[0015] Furthermore, the service acceptance module can call the user network information management module to query the information of the destination user according to the request of the source user, and decide whether the control station at the same level can process the service request.

[0016] Furthermore, in the resource allocation step, if the control station at the current level cannot allocate resources, the request is forwarded to the upper-level control station through the upper-lower cascade module until the top-level control station.

[0017] Furthermore, the external network connection module can identify whether the current control station is configured with a corresponding type of service, and provide resources to the user if a match is found.

[0018] A satellite communication system control device for implementing any of the hierarchical networking methods, characterized by comprising:

[0019] -User network access information management module, used to manage the registration and synchronization of user network access information;

[0020] -Business acceptance module, used to receive and process business requests from source users;

[0021] -Business resource management module, used to allocate satellite frequency resources or ground link resources according to business requests;

[0022] - The upper and lower cascading module is used to forward requests to the upper-level control station when the current level is unable to process requests.

[0023] - The external network connection module is used to implement the connection with non-satellite networks and resource allocation.

[0024] Furthermore, the user network access information management module can automatically synchronize user network access information to the upper-level control station to ensure the consistency of information among control stations at all levels.

[0025] Furthermore, the upper and lower cascading module includes a fault isolation mechanism. Even if the upper-level control station fails, the lower-level control station can still continue to allocate resources for users and maintain service communication.

[0026] Furthermore, the control device includes multiple levels. From the top layer to the bottom layer, each level of control station is responsible for user network access registration and resource allocation within a certain range to achieve optimal resource configuration and efficient communication connection. The advantages and beneficial effects of the present invention are as follows:

[0027] The innovation points of the present invention are mainly reflected in the following aspects:

[0028] 1. Hierarchical management architecture: The present invention introduces a hierarchical satellite communication system networking method. By setting up control stations at different levels (such as the top layer, the first level, the second level, and the bottom layer), the allocation of satellite communication resources is realized, breaking the limitations of traditional centralized or decentralized management. This architecture allows control stations at each level to independently allocate resources according to the user needs within their scope, effectively improving resource utilization and reducing communication connection delay.

[0029] 2. Dynamic resource allocation mechanism: The resource allocation mechanism of the present invention is dynamic and intelligent, and can allocate resources at the most appropriate control level according to the specific needs of the source user and the destination user. This mechanism not only considers satellite frequency resources but also covers ground link resources, ensuring the flexibility and efficiency of resource allocation.

[0030] 3. Hierarchical synchronization of user network access information: Through the hierarchical synchronization mechanism of the user network access information management module, it is ensured that each control station masters the information of all users within its responsible scope and the information of higher-level control stations. This enables the control station to quickly identify and process user requests, improving the efficiency of communication establishment.

[0031] 4. Fault tolerance and fault isolation: The present invention proposes an enhanced fault tolerance ability and a fault isolation mechanism. Even if the upper-level control station fails, the lower-level control station can still continue to process user requests without being affected. This design improves the stability and reliability of the system, ensuring that the satellite communication network can still operate normally when some components fail.

[0032] 5. Optimized communication connection process: The communication connection process of the present invention is designed to be more optimized. Through the collaborative work of the service resource management module and the upper and lower cascading modules, the minimum delay of communication connection and the optimal resource utilization are achieved. Especially for communication requests that need to cross different management levels, through hierarchical upward query and resource allocation, unnecessary resource waste and communication quality degradation are avoided.

[0033] In summary, by introducing hierarchical management and dynamic resource allocation strategies, the present invention solves the problems of resource waste, communication connection delay, and insufficient fault tolerance in existing satellite communication systems, providing an innovative and practical solution for the efficient operation of satellite communication networks. Brief Description of the Drawings

[0034] Figure 1 is a schematic diagram of the connection of hierarchical control stations in the satellite communication network of the preferred embodiment provided by the present invention (where the secondary control station is the bottom layer);

[0035] Figure 2 is a schematic diagram of the node module;

[0036] Figure 3 is a schematic diagram of the step processing flow of the preferred embodiment provided by the present invention;

[0037] Figure 4 is a resource allocation flowchart. Detailed Description of the Preferred Embodiment

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and detailedly described in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention.

[0039] The technical solution of the present invention to solve the above technical problems is:

[0040] The purpose of the present invention is to overcome the problems of insufficient optimization of resources and communication connection in satellite networking in the prior art, establish a hierarchical management architecture, so that the communication connection process is driven by the communication needs of source and destination users, and optimize the communication connection (control) and communication service (service) resources.

[0041] Generally speaking, the method of the present invention includes: The satellite network includes hierarchical control stations, such as Figure 1 shown, which are the top-level control station, the first-level control station, the second-level control station, and so on, until the bottom-level control station, as Figure 2As shown in the figure, each control station includes a user network access information management module, a service acceptance module, a service resource management module, an upper and lower level cascading module, and an external network connection module. The user network access information management module obtains the network access information of currently registered users. The service acceptance module accepts the service requests of source users and queries the user network access information management module to determine whether the destination user belongs to the current control station. If the destination user belongs to the current control station, or the destination user belongs to the external network and the service type can be continued through the current control station, the service resource management module allocates resources for the source and destination users; otherwise, the upper and lower level cascading module is used to query the upper-level control station. When the upper-level control station has the network access registration information of the destination user, the service resource management module of this control station allocates resources and sends the resource allocation information to the underlying control station; if the upper-level control station does not have the network access registration information of the destination user, requests are sent successively to the upper levels until the top-level control station is reached, and resource allocation or resource failure information is returned. The processing flow is as Figure 3 shown, including four steps: network access registration, source user request, resource allocation, and communication establishment.

[0042] To achieve the object of the present invention, the technical solutions adopted include the following steps:

[0043] Step 1, network access registration. The satellite communication network has a top-level control station and first-level, second-level,..., underlying control stations. Each layer of control station maintains a user information configuration library, which includes all user information within the scope of the current control station. For example, the second-level control station includes all user information owned by control stations below the second level, and the top-level control station has all user information. The user sends network access registration information to the underlying control station. When the control station has the user configuration information, the user is approved to access the network through the user network access information management module, and at the same time, the user network access information is sent successively to the upper-level control stations; if the underlying control station does not contain the network access registration information, an application is sent to the upper-level control station through the upper and lower level cascading module, and the upper-level control center checks whether the user belongs to the scope of this control station. If so, the network access application is approved; otherwise, applications are sent successively to the upper-level control centers until the top-level control center is reached. When the user information is correct, approved network access information is returned, otherwise prohibited network access information is returned.

[0044] Step 2, source user request. After the source user enters the network access state and needs to initiate a communication to the destination user, a request for establishing a communication connection is sent to the service acceptance module of the underlying control station. It includes the source address SADD, the destination address DADD, and the service type STY.

[0045] Step 3: Resource Allocation. After the business acceptance module of the underlying control station receives the request from the source user, it first determines whether the destination user belongs to the current control station through the local user network access information management module. If they both belong to the underlying control station, resources are allocated according to the service type STY; the allocated resources include satellite frequency resources and ground link resources. If the destination user is a satellite user, satellite frequency resources are directly allocated; if the destination user is a user of other networks, the external network connection module determines whether the current control station is configured with the corresponding type of service. For example, if STY = 1 represents IP service, when the external network connection module determines that there is an IP service, the corresponding type of resources (such as ground link resources) are allocated to it. After success, a resource allocation command is sent to the source and destination users, and the source and destination users establish communication; otherwise, the request is sent to the upper-level control station through the upper and lower cascading module. The processing flow is as Figure 4 shown.

[0046] Step 4: After the upper-level control station receives the request through the upper and lower cascading module, repeat Step 3. After completing the resource allocation, information is sent to the underlying control station. The underlying control station sends a resource allocation command to the source user, and the current control station sends a resource allocation command to the destination user through the underlying control station to which the destination user belongs, and the source and destination users establish communication; otherwise, the request is sent to the upper-level control station through the upper and lower cascading module. When the upper-level control station is not the top-level control station, repeat Step 4.

[0047] Step 5: When the top-level control station receives the request, it allocates resources to the source and destination users according to the steps in Step 3. After completing the resource allocation, information is sent to the underlying control station. The underlying control station sends a resource allocation command to the source user, and the top-level control station sends a resource allocation command to the destination user through the underlying control station to which the destination user belongs, and the source and destination users establish communication; when the destination user is not in the network or does not support this type of service, a failure command is sent to the underlying control station.

[0048] Step 6: Communication Establishment. The source and destination users use the allocated resources to establish communication. Since the communication is allocated by the relatively lowest control station, both satellite resources and ground link resources are allocated nearby, which is convenient for the use and recovery of communication user resources.

[0049] The key points and protection points of the present invention are:

[0050] (1) During network access registration, network access approval is implemented successively from the underlying control station upwards. After approval, each level of control station masters the network access information of all lower-level control stations;

[0051] (2) During business resource allocation, the current control station allocates services for the destination user or when the destination service type belongs to the current control station. Otherwise, it applies upwards successively until reaching the top-level control station;

[0052] When establishing business communications, source and destination users establish communications nearby based on allocated business resources, and failure of the upper-level control station does not affect the business of users at the lower-level control stations.

[0053] The following describes the method through two specific embodiments.

[0054] Example 1: Resource allocation for IP communication between multiple users

[0055] Situation description:

[0056] Assume that in a hierarchical satellite communication system, user A and user B are located in the coverage area of ​​different first-level control stations. User A needs to initiate IP data communication with user B. At this time, users A and B have completed network registration, and their information is recorded in their respective first-level control stations, and further synchronized to the user information configuration library of the top-level control station.

[0057] Implementation steps:

[0058] 1. User A requests communication: User A sends a communication request to its primary control station through its bottom-level control station. The request includes user A's source address SADD, user B's destination address DADD, and service type STY=1 (indicating IP communication).

[0059] 2. Processing by the first-level control station: The first-level control station that receives the request first checks the information of user B through the user network information management module. Since user B belongs to the jurisdiction of another control station, the first-level control station cannot establish communication directly, so it forwards the request to the top-level control station according to the rules of the upper and lower cascade modules.

[0060] 3. Top-level control station allocates resources: The top-level control station confirms the network access information of user B through the user network access information management module, and allocates resources for IP communication between users A and B through the business resource management module. Considering the location of user B, the top-level control station may decide to use ground link resources to reduce communication delay and improve communication quality.

[0061] 4. Resource allocation notification: After the resource allocation is completed, the top-level control station sends the resource allocation information to the first-level control station to which user A belongs through the upper and lower cascade modules. At the same time, it also notifies the control station to which user B belongs of the allocation situation. Then, the respective first-level control stations send resource allocation commands to users A and B.

[0062] 5. Communication establishment: After receiving the resource allocation command, user A and user B use the allocated resources to establish communication. The use of the ground link makes the communication connection process faster and improves the transmission efficiency of IP data.

[0063] Implementation effect:

[0064] By implementing the steps introduced in the embodiments, the present invention can effectively reduce resource waste and communication delay during cross-regional communication, improving the quality and efficiency of IP data communication. At the same time, the dynamic resource allocation mechanism ensures that even users within the coverage of different control stations can quickly establish communication without relying too much on the processing capacity of the top-level control station.

[0065] Embodiment 2: Rapid establishment of satellite frequency communication in emergency situations

[0066] Situation description:

[0067] In a hierarchical satellite communication network, a natural disaster suddenly occurs, causing a large-scale interruption of the ground communication network (such as optical cables and cables). At this time, it is necessary to urgently establish satellite frequency communication between two disaster area on-site command centers (User X and User Y). User X and User Y are respectively within the coverage of different secondary control stations, and the upper-level primary control stations of these secondary control stations are ineffective due to the impact of the natural disaster. It should be noted that in a relatively special case, in an emergency, the secondary control stations in the present invention can directly allocate a large amount of resources to the secondary control stations through the top-level control station, enabling the secondary control stations to have the satellite communication resources of the primary control station (or the top-level control station), and being able to perform power distribution and scheduling on a large scale, which is a feature not possessed by ground telecommunication cellular base stations.

[0068] Implementation steps:

[0069] 1. User X requests communication: User X initiates a satellite frequency communication request with User Y through its underlying control station (secondary control station). The request contains the source address of User X, the destination address of User Y, and the service type STY = 2 (indicating satellite frequency communication).

[0070] 2. Underlying control station's resource allocation attempt: The underlying control station of User X first checks the information of User Y. Since User Y is within the coverage of another secondary control station and resources cannot be directly allocated locally, the underlying control station sends the request upward to its affiliated primary control station, but this primary control station has failed.

[0071] 3. Top-level control station takes over the allocation: The request is further forwarded upward to the top-level control station. The top-level control station detects the failure status of the intermediate primary control station, but can still confirm the network access information of User Y through the user network access information management module and decides to use satellite frequency resources to establish communication for User X and User Y.

[0072] 4. Resource Allocation and Notification: The top-level control station allocates satellite frequency resources through the service resource management module and directly sends the resource allocation information to the respective bottom-level control stations of User X and User Y through the upper and lower cascading modules. After receiving the information, the bottom-level control stations immediately send resource allocation commands to User X and User Y.

[0073] 5. Communication Establishment and Fault Isolation: User X and User Y establish communication using the allocated satellite frequency resources. During this process, even if the primary control station fails, it does not affect the establishment of communication between User X and User Y, demonstrating the fault isolation ability of the present invention and ensuring the continuity and stability of communication in emergency situations.

[0074] Implementation Effect:

[0075] In this embodiment, the present invention can overcome the risk of communication interruption caused by the failure of the primary control station. Through the resource dynamic allocation and fault isolation mechanisms of the top-level control station, satellite frequency communication can be quickly established even under extreme conditions, providing critical communication support for emergency rescue, demonstrating the significant advantages of the present invention in improving system fault tolerance and ensuring communication stability.

[0076] The innovation points of the present invention are mainly reflected in the following steps and technical points, which are not easily thought of because of their significant improvements to the traditional satellite communication network architecture and resource management methods:

[0077] 1. Introduction of a Hierarchical Management Architecture:

[0078] - Reason for not being easily thought of: Traditional satellite communication networks usually adopt a centralized or decentralized architecture. The centralized architecture has high resource allocation efficiency but lacks flexibility, while the decentralized architecture has strong flexibility but complex resource coordination. The hierarchical architecture combines the advantages of both, ensuring the effective utilization of resources and improving the flexibility and fault tolerance of the network. The introduction of this architecture requires an in-depth understanding of network theory and the ability to foresee its advantages in complex and dynamic communication environments.

[0079] 2. Dynamic Resource Allocation Mechanism:

[0080] - Reason for not being easily thought of: Dynamic resource allocation requires the network to respond to user needs in real time, which is particularly difficult in satellite communication because of the diverse types of resources involved (satellite frequencies, ground links, etc.), and the high requirements for real-time performance due to the latency and bandwidth limitations of the satellite network. The present invention realizes resource allocation at the most appropriate level through an intelligent query and forwarding mechanism, reducing the latency of resource addressing and improving communication efficiency.

[0081] 3. Hierarchical Synchronization Mechanism for User Network Access Information:

[0082] - Reasons for being not easily conceived: In a multi-level control architecture, ensuring the consistency and synchronization of information among all control stations is a challenge. The present invention automatically synchronizes user configuration information to the upper level through the user network access information management module, ensuring that each level of control station can obtain user information in a timely and accurate manner, so as to quickly respond to user requests. This mechanism requires the support of complex network communication protocols and data processing algorithms, and it is not easy to consider comprehensively in the initial design stage.

[0083] 4. Fault tolerance and fault isolation mechanism:

[0084] - Reasons for being not easily conceived: In a satellite communication network, due to the high cost and difficult maintainability of components, designing a system with high fault tolerance is a difficult problem. The present invention enables the lower-level control station to independently process communication requests even if the upper-level control station fails through fault isolation and redundant design, which requires in-depth understanding and innovation of the network architecture, as well as anticipation and response design for various possible fault scenarios.

[0085] 5. Optimized communication connection process:

[0086] - Reasons for being not easily conceived: The optimization of the communication connection process needs to comprehensively consider various factors such as resource allocation efficiency, communication quality, and network stability. The present invention avoids unnecessary resource waste and communication quality degradation through the strategy of querying upwards level by level and resource allocation, while ensuring the rapidity and reliability of communication connection. This process design requires full anticipation of communication requirements and in-depth thinking about resource allocation logic.

[0087] Overall, the innovation of the present invention lies in its re-design of the satellite communication network architecture and resource management mechanism, which requires designers to have in-depth understanding of existing technologies, as well as forward-looking thinking about the characteristics of satellite communication networks and user needs. Through these innovation points, the present invention significantly improves the resource utilization efficiency of satellite communication networks, the flexibility of communication connection, and the fault tolerance of the system.

[0088] Advantages of the present invention:

[0089] This application preferably solves problems such as insufficient optimization of resources and communication connection during satellite networking. Based on the communication requirements of source and destination users, a strategy of unified planning is carried out globally to effectively utilize the control and communication resources of satellite networking.

[0090] (1) During network access registration, it is responsible in layers, and network access approval is implemented successively from the bottom-level control station upwards. After approval, each level of control station masters the network access information of all lower-level control stations;

[0091] (2) When allocating service resources, edge control is performed. The control station at the same level allocates services to the destination user or the destination service type that belongs to the control station at the same level. Otherwise, applications are made to the upper level in sequence to achieve control resource optimization in the communication connection process.

[0092] (3) When establishing business communications, faults are isolated, and source and destination users establish communications nearby based on the allocated business resources. Failure of the upper-level control station does not affect the business of the lower-level control stations.

[0093] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions.

[0094] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0095] The above embodiments should be understood to be only used to illustrate the present invention and not to limit the protection scope of the present invention. After reading the contents of the present invention, technicians can make various changes or modifications to the present invention, and these equivalent changes and modifications also fall within the scope defined by the claims of the present invention.

Claims

1. A hierarchical satellite communication system networking method, characterized in that: The following steps are involved: Step 1: User network registration, obtain user network information through the bottom-level control station, and send the user network information to the upper-level control station according to the hierarchy until the top-level control station; Step 2: Source user request: The source user sends a request to establish a communication connection to the underlying control station to which it belongs, including the source address, destination address and service type; Step 3: Resource allocation: The bottom-level control station allocates resources based on the destination user information and service type. If the destination user is not within the control scope of this level, a request is sent to the upper-level control station. Step 4: Communication establishment: The source and destination users use the allocated resources to establish communication. Resource allocation follows the principle of step-by-step application from low to high.

2. The networking method according to claim 1, characterized in that: The resource allocation includes satellite frequency resources and ground link resources, and the resource type is determined according to the service type.

3. The networking method according to claim 1, characterized in that: When a user registers to join the network, the user network access information management module can automatically check the user configuration information and approve the network access, and synchronize the user information to the superior control station.

4. The networking method according to claim 1, characterized in that: The service acceptance module can call the user network information management module to query the information of the destination user according to the request of the source user, and decide whether the control station at the same level can process the service request.

5. The networking method according to claim 1, characterized in that: In the resource allocation step, if the control station at the current level cannot allocate resources, the request is forwarded to the upper-level control station through the upper-lower cascade modules until the top-level control station.

6. The networking method according to claim 1, characterized in that: The external network connection module can identify whether the current control station is configured with a corresponding type of service, and provide resources to the user if a match occurs.

7. A satellite communication system control device implementing the hierarchical networking method according to any one of claims 1 to 6, characterized in that: include: -User network access information management module, used to manage the registration and synchronization of user network access information; -Business acceptance module, used to receive and process business requests from source users; -Business resource management module, used to allocate satellite frequency resources or ground link resources according to business requests; - The upper and lower level cascade module is used to forward the request to the upper level control station when the request cannot be processed at the current level; -External network connection module, used to achieve connection with non-satellite networks and resource allocation.

8. The control device according to claim 7, characterized in that: The user network access information management module can automatically synchronize user network access information to the superior control station to ensure the consistency of information of control stations at all levels.

9. The control device according to claim 7, characterized in that: The upper and lower level cascade modules include a fault isolation mechanism. Even if the upper level control station fails, the lower level control station can continue to allocate resources to users and maintain business communications.

10. The control device according to claim 7, characterized in that: The control device includes multiple levels, from the top level to the bottom level, and each level of control station is responsible for user network registration and resource allocation within a certain range to achieve optimal resource configuration and efficient communication connection.

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