A data transmission method and system for 5G self-organizing network fusion network

Abstract

The present invention relates to a data transmission method and system for a 5G self-organizing network fusion network, which belongs to the field of communication technology and solves the problem of low transmission efficiency of the entire network due to link selection in the prior art. The specific steps include: constructing a network node based on a network controller, a 5G base station and an inter-station interconnection module, and constructing a terminal node based on a communication controller, a self-organizing network module and a 5G terminal module; multiple network nodes and multiple terminal nodes constitute the full network topology structure of the 5G self-organizing network fusion network; each network node obtains and maintains the full network topology through the network controller, and sends it to the communication controller of each terminal node under its jurisdiction; the terminal node acts as a user device, and measures the signal strength of the relevant network node regularly through the communication controller, analyzes the link status of the self-organizing network and 5G in combination with the full network topology structure, and determines the next data transmission path, thereby realizing the separation of network-side networking and terminal-side networking, and avoiding the degradation of the whole network performance due to link problems at different levels.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and in particular to a data transmission method and system for a 5G self-organizing network converged network. Background Art

[0002] 5G, a representative of current advanced mobile communications technology, features ultra-large bandwidth, ultra-low latency, and ultra-large network capacity. Ad hoc networking, a mature and evolving node-free networking technology, has already seen widespread adoption in mobile communications. The convergence of these two heterogeneous communication systems combines 5G's ultra-large bandwidth and mature industry chain with the rapid, automatic, and reliable networking capabilities of ad hoc networks. This enables mobile 5G base station deployment and on-the-go coverage on the network side, while terminals leverage both 5G access and ad hoc waveforms for link backup and complementarity, becoming the latest technological development direction for mobile communications.

[0003] Currently, 5G ad hoc converged communications generally employ a hybrid networking approach, combining decentralized ad hoc networks and centralized broadband waveforms through inter-network routing. User-side access simply overlays the two waveforms, retaining their respective interfaces and addresses. The base station is even considered a user-side device within the ad hoc network. This fails to fully leverage the centralized scheduling capabilities of the base station and the extended coverage capabilities of the ad hoc network. This is particularly true in scenarios with dense ad hoc network nodes, where signal conditions are strong, and where the ad hoc network can even be congested while the 5G network remains idle. Relying on simple link priority relationships makes it difficult to implement traffic-based link selection, which in turn impacts network transmission efficiency. Summary of the Invention

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a data transmission method and system for a 5G self-organizing network converged network, so as to solve the problem of low transmission efficiency of the entire network caused by link selection in the prior art.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] On the one hand, an embodiment of the present invention provides a data transmission method for a 5G self-organizing network converged network, comprising the following steps:

[0007] A network node is constructed based on a network controller, a 5G base station, and an inter-station interconnection module, and a terminal node is constructed based on a communication controller, an ad hoc network module, and a 5G terminal module; multiple terminal nodes are used to establish connections with their respective network nodes through the 5G terminal modules, and multiple network nodes and multiple terminal nodes constitute the full network topology of the 5G ad hoc network converged network;

[0008] Each network node obtains and maintains the entire network topology through the network controller, and sends the entire network topology to the communication controllers of the terminal nodes under its jurisdiction;

[0009] The terminal node T1 acts as a user device, and measures the signal strength of related network nodes through the communication controller at regular intervals. In combination with the topology of the entire network, it analyzes the link status of the ad hoc network and 5G, and determines the preferred path for transmitting data from the user device to the target device as the next data transmission path; wherein, the target device is a terminal node of the 5G ad hoc network converged network, and the related network nodes include the network nodes to which they belong and all network nodes indirectly accessed through adjacent terminal nodes.

[0010] Furthermore, if the terminal node T1 can establish a connection with the network node N1 to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device includes:

[0011] Obtain the entire network topology through the communication controller of the terminal node T1;

[0012] The communication controller of the terminal node T1 determines, in sequence, whether there is a terminal node belonging to another network node among all adjacent terminal nodes based on the latest adjacency relationship of the current full network topology structure and the previous full network topology structure. If yes, a connection is established with the corresponding other network node through the terminal node belonging to the other network node;

[0013] Regularly measure the signal strength of all connected network nodes and sort them;

[0014] Determine the network node N corresponding to the maximum signal strength max Whether the signal strength reaches the threshold: if yes, then access to the network node N max , so that data is transmitted from the terminal node T1 to the network node N via the 5G link max The preferred transmission path of the 5G base station is transmitted from the 5G base station to the core network and finally to the target device as the next data transmission path;

[0015] If not, the preferred transmission path for accessing the network node N1 is selected, so that the data is transmitted from the terminal node T1 via the 5G link to the 5G base station of the network node N1, and then transmitted by the core network to the target device as the next data transmission path.

[0016] Further, access to the network node N max Including: when the network node N max When the network node is N1, the terminal node T1 directly accesses the network node N1; when the network node N max When it is another network node, the terminal node T1 jumps to the adjacent terminal node via the self-organizing network link, and uses the adjacent terminal node to connect to the network node N max .

[0017] Furthermore, if the terminal node T1 cannot establish a connection with the network node to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device further includes:

[0018] Measuring the ad hoc network signal strength of adjacent terminal nodes within the ad hoc network range through the communication controller of the terminal node T1;

[0019] When the signal strength of the ad hoc network of a neighboring terminal node T2 is greater than the threshold value, data is exchanged with the communication controller of the terminal node T2 to obtain the signal strength S2 from the terminal node T2 to the network node N2 to which it belongs;

[0020] When the signal strength S2 is greater than the corresponding threshold, the data jumps from the terminal node T1 to the terminal node T2 via the self-organizing network link, is connected to the 5G base station of the network node N2 by the 5G link, and is then transmitted to the target device by the core network as the preferred path.

[0021] Furthermore, the preferred path further includes: when the measured signal strengths of all adjacent terminal nodes are not greater than a threshold value, selecting a transmission path for transmitting data from the terminal node T1 to the target device via the ad hoc network path as the preferred path.

[0022] Furthermore, the entire network topology is obtained and maintained through networking and collaboration between network nodes and information interaction between network nodes and terminal nodes.

[0023] Furthermore, the information interaction between the network node and the terminal node includes:

[0024] The communication controller of the terminal node regularly reports the acquired self-organizing network information of the terminal node to the network controller of the network node to which it belongs;

[0025] The network controller updates the entire network topology relationship by using the obtained ad hoc network information; and sends the entire network topology structure to the communication controllers under its jurisdiction of each terminal node through the access link.

[0026] Furthermore, the networking and collaboration between the network nodes include:

[0027] The network node establishes connections with other network nodes through the inter-station interconnection module;

[0028] Determine in sequence whether all connected network nodes are newly added neighboring network nodes, and if so, use the network controller to perform information exchange to obtain the adjacency relationship of the network nodes;

[0029] According to the change of the adjacency relationship of the network nodes, the entire network topology structure stored in the local network node is updated.

[0030] On the other hand, an embodiment of the present invention provides a data transmission system for a 5G self-organizing network converged network, including a network node and a terminal node, wherein:

[0031] The network node includes a network controller module, a 5G base station and an inter-station interconnection module, and the terminal node includes a communication controller module, an ad hoc network module and a 5G terminal module; multiple terminal nodes are connected to their respective network nodes through the 5G terminal module, and multiple network nodes and multiple terminal nodes constitute the full network topology structure of the 5G ad hoc network converged network;

[0032] Each network node obtains and maintains the entire network topology through the network controller module, and sends the entire network topology to the communication controller modules of the corresponding terminal nodes;

[0033] A terminal node acts as a user device, and measures the signal strength of related network nodes through a communication controller at regular intervals. In combination with the topology of the entire network, it analyzes the link conditions of the ad hoc network and 5G, and determines the preferred path for transmitting data from the user device to the target device as the next data transmission path; wherein, the target device is a terminal node of the 5G ad hoc network converged network, and the related network nodes include the network nodes to which they belong and all network nodes indirectly accessed through adjacent terminal nodes.

[0034] Furthermore, when the network controller module and the communication controller module are damaged, the system implements data transmission through a flooding mechanism.

[0035] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0036] 1. This invention proposes deploying communication controllers at terminal nodes to achieve unified connection methods for users, adding network controllers corresponding to base station nodes for converged 5G networking. This maximizes network capabilities, separates network-side networking from terminal-side networking, and focuses on different functions, thus avoiding degradation of overall network performance due to link problems at different levels.

[0037] 2. The interface provided by the communication controller shields users from access methods and transmission channels, which helps improve user experience;

[0038] 3. The network controller serves as a global scheduling and management network unit, generating the optimal routing table and supporting terminal nodes to select end-to-end network links, thus achieving effective data transmission in the converged network. It works with the communication controller to optimize link selection and improve network transmission efficiency.

[0039] 4. The terminal node not only has the self-organizing network function, but can also use the communication controller to accelerate the access to the network through the self-organizing network.

[0040] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0042] Figure 1 This is a flowchart of 5G self-organizing network converged network data transmission according to an embodiment of the present invention;

[0043] Figure 2 This is a network element architecture diagram of a 5G self-organizing network convergence network according to an embodiment of the present invention;

[0044] Figure 3 This is a diagram of the architecture of a 5G self-organizing network convergence network according to an embodiment of the present invention;

[0045] Figure 4 This is a flow chart of terminal node access and mobility optimization according to an embodiment of the present invention;

[0046] Figure 5 This is a flow chart of coordinated interaction between a network node and a terminal node according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0048] Example 1

[0049] A specific embodiment of the present invention discloses a data transmission method for a 5G self-organizing network fusion network, such as Figure 1 As shown, the following steps are included:

[0050] Step S1: constructing a network node based on a network controller, a 5G base station, and an inter-station interconnection module, and constructing a terminal node based on a communication controller, an ad hoc network module, and a 5G terminal module; multiple terminal nodes are used to establish connections with their respective network nodes through the 5G terminal modules, and multiple network nodes and multiple terminal nodes constitute the full network topology of the 5G ad hoc network converged network;

[0051] Step S2: Each network node obtains and maintains the entire network topology through the network controller, and sends the entire network topology to the communication controllers of the terminal nodes under its jurisdiction;

[0052] Step S3, the terminal node T1 acts as a user device, and measures the signal strength of the relevant network nodes through the communication controller at regular intervals. In combination with the topology of the entire network, the link status of the self-organizing network and 5G is analyzed to determine the preferred path for transmitting data from the user device to the target device as the next data transmission path; wherein, the target device is a terminal node of the 5G self-organizing network convergence network, and the relevant network nodes include the network nodes to which they belong and all network nodes indirectly accessed through adjacent terminal nodes.

[0053] Through the above method, a heterogeneous network fusion architecture based on network nodes and terminal nodes was established, integrating terminal-side self-organizing networking with network access, separating network-side networking from terminal-side networking, and focusing on different functions to maximize the use of network capabilities and avoid degradation of overall network performance due to link problems at different levels.

[0054] Specifically, the 5G self-organizing network convergence network is based on the self-organizing network as a support for user communication and service task deployment. The network element architecture of the 5G self-organizing network convergence system is as follows: Figure 2 As shown, it includes node capability components and built-in modules. The network node is also called the central station. On the one hand, it integrates a 5G base station based on NR technology and has a built-in core network; on the other hand, it superimposes an inter-station interconnection module and a network controller (referred to as network control). From the perspective of network node functions, the original node accesses a central station as a terminal to obtain 5G network services, which is called a terminal node. The terminal node includes a 5G terminal based on the NR module, a self-organizing network MESH module and a communication controller (referred to as communication control). After initial access and registration, the terminal node obtains a 5G network IP address (referred to as NR IP); at the same time, as a member of the self-organizing network, it has a self-organizing network IP (referred to as MESH IP).

[0055] It should be noted that the network architecture of 5G self-organizing network integration, such as Figure 3 As shown in the figure, the 5G base station of the network node is responsible for network access of the 5G waveform. The end node can achieve cross-site switching with the support of the central station; the network control realizes routing and forwarding across the central station, and serves as the interface for the network side to provide individual user services; the inter-station interconnection module is the networking channel between stations, responsible for autonomous communication with multiple central stations. On the one hand, the terminal node accesses a central station through the NR module of the 5G terminal via the NR waveform to obtain 5G network services. On the other hand, it can use the self-organizing network MESH module to complete data transmission via the self-organizing network waveform. At the same time, there is a communication controller (referred to as communication control) with routing management capabilities, which connects users and services to the interface provided by the communication control.

[0056] Specifically, in step S2, the acquisition and maintenance of the entire network topology is achieved through networking and collaboration between network nodes and information interaction between network nodes and terminal nodes. Figure 5 As shown, the specific steps include:

[0057] Step S21: Since all nodes are in a mobile state, the network nodes also need to organize the network by themselves. The network nodes establish connections with other network nodes through the inter-station interconnection module via the inter-network self-organizing network;

[0058] Step S22: determine in turn whether all other network nodes connected to it are newly added neighboring network nodes. If yes, exchange their respective network data through the network controller to obtain the adjacency relationship of the network nodes;

[0059] Step S23: Update the locally stored global adjacency database using the obtained changes in the local network adjacency relationship and the new data of other network nodes;

[0060] Step S24: The network node exchanges network data with the communication control of the subordinate terminal nodes through the network control. The specific steps include:

[0061] The communication control of the terminal node will report the obtained self-organizing network information of the terminal node to the network control of the network node to which it belongs;

[0062] The network control updates the entire network topology using the obtained ad hoc network information; and sends the entire network topology including the adjacency data within the network nodes to the communication control of each terminal node under its jurisdiction through the access link;

[0063] At the same time, the communication control determines the waveform and route selected for the next communication based on the data obtained from the interaction, realizing the network convergence transmission-level link optimization function.

[0064] Furthermore, in step S3, the end node not only has the self-organizing network function, but also can accelerate the access to the network through the self-organizing network, and after establishing a connection with the network node, the best transmission path is determined by analyzing the link conditions of the self-organizing network and 5G. After the first data transmission, the best path selects the best signal neighboring area and the shortest path to 5G as the next data transmission path, such as Figure 4 The first data transmission is completed according to the principle that 5G links are superior to self-organizing network links.

[0065] Exemplarily, the specific steps of the terminal node T1 determining the preferred transmission path for transmitting data from the user equipment to the target include:

[0066] Step S31: The terminal node T1 uses the 5G terminal module to establish a connection with the network node N1 to which it belongs, completes the data transmission, and obtains the latest adjacency relationship of the entire network topology structure through the access link and communication control;

[0067] Step S32: The communication control determines, based on the latest adjacency relationship and the previous full network topology, whether all adjacent terminal nodes have adjacent terminal nodes belonging to other network nodes. If so, the communication control establishes a connection with the corresponding network node through the adjacent terminal node, until all adjacent terminal nodes are determined.

[0068] Step S33: Start the scheduled task, measure the signal strength of all known central stations connected to it, and sort the signal strengths;

[0069] Step S34: Node N with the maximum signal strength max Perform signal strength threshold judgment; if a certain threshold is reached, start the initial access or handover process to access the network node, so that data is transmitted from the terminal node T1 to the network node N via the 5G link max The preferred transmission path of the 5G base station is transmitted from the 5G base station to the core network and finally transmitted to the target device as the next data transmission path.

[0070] Specifically, the specific process of 5G data transmission includes:

[0071] Establishing a connection between the user equipment and the 5G base station: After the terminal node, as the user equipment, establishes a connection with the 5G base station of the network node through the 5G signal waveform provided by the 5G terminal module, and sends a request signal, the 5G base station initiates an authentication and authorization request to the core network after receiving it;

[0072] Core network authentication and authorization: The core network verifies and authenticates the user's identity, confirms the user's legitimacy, and allocates parameters such as the NR IP address;

[0073] Data transmission preparation: The core network allocates resources to user equipment, establishes data transmission channels, and determines transmission protocols and security parameters.

[0074] Data transmission: Data transmission begins between the user device and the 5G base station. Data is encapsulated from the application layer into data segments at the transport layer, and then into IP packets at the network layer. Based on an analysis of service QoS requirements and connection overhead, the communication control determines the actual waveform link for each message, selecting the corresponding NR IP or MESH IP as the target IP address and re-encapsulating the IP packet. Through the encapsulation and decapsulation of the IP packet, the data is transmitted across the transmission network to the target device, achieving information delivery.

[0075] Data transfer completion: Once the data transfer is completed, the related connection session is closed and the resources are released.

[0076] Furthermore, in step S3, when the terminal node T1 cannot establish a connection with the node of the network to which it belongs, the signal strength of the neighboring terminal nodes within the range of the ad hoc network is continuously measured through communication control.

[0077] When selecting a path, if the ad hoc network signal of a neighboring terminal node T2 is stronger than a threshold, then, through data exchange between the communication and control rooms, it is learned that the signal from the neighboring terminal node T2 to its network node N2 is stronger than another threshold. Node T2 is then selected as a hop in the path, allowing data to jump from the terminal node T1 to the terminal node T2 via the ad hoc network link provided by the ad hoc network module. T2's 5G terminal module provides a 5G link to access the 5G base station of its network node N2, and then transmit the data via the core network to the target device as the preferred path for data transmission. Using ad hoc networks accelerates 5G network access and ensures that the path maximizes the utilization of 5G bandwidth and access capabilities.

[0078] Furthermore, when the terminal node T1 measures the signal strength of the ad hoc network, if the signal strength from the neighboring terminal node to the network node does not reach the threshold, the best signal neighboring area of ​​the ad hoc network is preferred for data transmission.

[0079] It should be noted that the network control is responsible for managing the central station, communicating with other central stations through preset links, and exchanging network data with the network control of other network nodes to achieve synchronization of the entire network. The network control can also exchange network management and routing control data with the communication control of the terminal node to which the node belongs through the 5G link; and select the shortest path to 5G and the best self-organizing network signal neighboring area as the next output path, generate the best routing table, and realize the network convergence transmission level link optimization function. In order to alleviate the ping-pong effect, the communication control usually queries the optimal path according to the scheduled task based on the application requirements. For users, they only need to connect to the user service interface of the end node, without worrying about the network topology, node connection relationship or even access waveform.

[0080] Compared with the existing technology, this embodiment provides a data transmission method for a 5G self-organizing network converged network. By establishing a heterogeneous network convergence architecture in the form of network nodes and terminal nodes, the terminal-side self-organizing network is integrated with network access, maximizing the use of network capabilities, ultimately optimizing link selection, and improving network transmission efficiency. On the one hand, the method separates network-side networking from terminal-side networking, focusing on different functions, and avoiding degradation of the overall network performance due to link problems at different levels. On the other hand, the interface provided by the communication controller shields the user from the access method and transmission channel. The user does not need to worry about the network topology, node connection relationship, or even the access waveform, thereby improving the user experience.

[0081] Example 2

[0082] Another specific embodiment of the present invention discloses a data transmission system of a 5G self-organizing network converged network, including a network node and a terminal node, wherein:

[0083] The network node includes a network controller module, a 5G base station and an inter-station interconnection module, and the terminal node includes a communication controller module, an ad hoc network module and a 5G terminal module; multiple terminal nodes are connected to their respective network nodes through the 5G terminal module, and multiple network nodes and multiple terminal nodes constitute the full network topology structure of the 5G ad hoc network converged network;

[0084] Each network node obtains and maintains the entire network topology through the network controller module, and sends the entire network topology to the communication controller modules of the corresponding terminal nodes;

[0085] A terminal node acts as a user device, and measures the signal strength of related network nodes through a communication controller at regular intervals. In combination with the topology of the entire network, it analyzes the link conditions of the ad hoc network and 5G, and determines the preferred path for transmitting data from the user device to the target device as the next data transmission path; wherein, the target device is a terminal node of the 5G ad hoc network converged network, and the related network nodes include the network nodes to which they belong and all network nodes indirectly accessed through adjacent terminal nodes.

[0086] At the same time, this system can perform data transmission according to the data transmission method of the 5G self-organizing network converged network described in any one of the solutions in Example 1.

[0087] Furthermore, when the network controller module and the communication controller module are damaged, the system implements data transmission through a flooding mechanism.

[0088] Compared with the existing technology, the data transmission system of a 5G self-organizing network fusion network provided in this embodiment establishes a heterogeneous network fusion architecture in the form of network nodes and terminal nodes, and uses the network controller module and the communication controller module to optimize the link selection, thereby maximizing the use of network capabilities and improving the data transmission efficiency of the communication system; at the same time, the interface provided by the communication controller module shields the user from the access method and transmission channel, and the user does not need to worry about the network topology, node connection relationship or even access waveform, thereby improving the user experience.

[0089] Those skilled in the art will appreciate that all or part of the process steps of the above-described embodiments can be implemented by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, such as a magnetic disk, an optical disk, a read-only memory, or a random access memory.

[0090] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A data transmission method for a 5G self-organizing network converged network, characterized in that: The steps include: A network node is constructed based on a network controller, a 5G base station, and an inter-station interconnection module, and a terminal node is constructed based on a communication controller, an ad hoc network module, and a 5G terminal module; multiple terminal nodes are used to establish connections with their respective network nodes through the 5G terminal modules, and multiple network nodes and multiple terminal nodes constitute the full network topology of the 5G ad hoc network converged network; Each network node obtains and maintains the entire network topology through the network controller, and sends the entire network topology to the communication controllers of the terminal nodes under its jurisdiction; Terminal node T1, as a user device, regularly measures the signal strength of related network nodes through a communication controller, analyzes the link status of the ad hoc network and 5G in combination with the entire network topology, and determines the optimal path for data transmission from the user device to the target device as the next data transmission path; wherein the target device is a terminal node of the 5G ad hoc network converged network, and the related network nodes include the network node to which it belongs and all network nodes indirectly accessed through adjacent terminal nodes; If the terminal node T1 can establish a connection with the network node N1 to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device includes: Obtain the entire network topology through the communication controller of the terminal node T1; The communication controller of the terminal node T1 determines, in sequence, whether there is a terminal node belonging to another network node among all adjacent terminal nodes based on the latest adjacency relationship of the current full network topology structure and the previous full network topology structure. If yes, a connection is established with the corresponding other network node through the terminal node belonging to the other network node; Regularly measure the signal strength of all connected network nodes and sort them; Determine the network node N corresponding to the maximum signal strength max Whether the signal strength reaches the threshold: if yes, then access to the network node N max , so that data is transmitted from the terminal node T1 to the network node N via the 5G link max The preferred transmission path of the 5G base station is transmitted from the 5G base station to the core network and finally to the target device as the next data transmission path; If not, the preferred transmission path for accessing the network node N1 is selected, so that the data is transmitted from the terminal node T1 via the 5G link to the 5G base station of the network node N1, and then transmitted via the core network to the target device as the next data transmission path; If the terminal node T1 cannot establish a connection with the network node N1 to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device further includes: Measuring the ad hoc network signal strength of adjacent terminal nodes within the ad hoc network range through the communication controller of the terminal node T1; When the signal strength of the ad hoc network of a neighboring terminal node T2 is greater than the threshold value, data is exchanged with the communication controller of the terminal node T2 to obtain the signal strength S2 from the terminal node T2 to the network node N2 to which it belongs; When the signal strength S2 is greater than the corresponding threshold, the data jumps from the terminal node T1 to the terminal node T2 via the self-organizing network link, is connected to the 5G base station of the network node N2 by the 5G link, and is then transmitted to the target device by the core network as the preferred path.

2. The data transmission method of a 5G self-organizing network converged network according to claim 1, characterized in that: Access to the network node N max Including: when the network node N max When the network node is N1, the terminal node T1 directly accesses the network node N1; when the network node N max When it is another network node, the terminal node T1 jumps to the adjacent terminal node via the self-organizing network link, and uses the adjacent terminal node to connect to the network node N max .

3. The data transmission method of a 5G self-organizing network converged network according to claim 1, characterized in that: If the terminal node T1 cannot establish a connection with its network node N1, the preferred path further includes: when the measured signal strengths of all adjacent terminal nodes are not greater than a threshold value, selecting a transmission path for transmitting data from the terminal node T1 to the target device via the self-organizing network path as the preferred path.

4. A data transmission method for a 5G self-organizing network converged network according to any one of claims 1 to 3, characterized in that: The entire network topology is obtained and maintained through networking and collaboration between network nodes and information interaction between network nodes and terminal nodes.

5. The data transmission method of a 5G self-organizing network converged network according to claim 4, characterized in that: The information interaction between the network node and the terminal node includes: The communication controller of the terminal node regularly reports the acquired self-organizing network information of the terminal node to the network controller of the network node to which it belongs; The network controller updates the entire network topology relationship by using the obtained ad hoc network information; and sends the entire network topology structure to the communication controllers under its jurisdiction of each terminal node through the access link.

6. The data transmission method of a 5G self-organizing network converged network according to claim 4, characterized in that: The networking and collaboration between the network nodes include: The network node establishes connections with other network nodes through the inter-station interconnection module; Determine in sequence whether all connected network nodes are newly added neighboring network nodes, and if so, use the network controller to perform information exchange to obtain the adjacency relationship of the network nodes; According to the change of the adjacency relationship of the network nodes, the entire network topology structure stored in the local network node is updated.

7. A data transmission system for a 5G self-organizing network converged network, characterized in that: Including network nodes and terminal nodes, among which, The network node includes a network controller module, a 5G base station and an inter-station interconnection module, and the terminal node includes a communication controller module, an ad hoc network module and a 5G terminal module; multiple terminal nodes are connected to their respective network nodes through the 5G terminal module, and multiple network nodes and multiple terminal nodes constitute the full network topology structure of the 5G ad hoc network converged network; Each network node obtains and maintains the entire network topology through the network controller module, and sends the entire network topology to the communication controller modules of the corresponding terminal nodes; A terminal node, acting as a user device, regularly measures the signal strength of related network nodes through a communication controller, analyzes the link status of the ad hoc network and 5G in combination with the entire network topology, and determines a preferred path for data transmission from the user device to the target device as the next data transmission path; wherein the target device is a terminal node of the 5G ad hoc converged network, and the related network nodes include the network node to which it belongs and all network nodes indirectly accessed through adjacent terminal nodes; If the terminal node is T1 and a connection can be established with the network node N1 to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device includes: Obtain the entire network topology through the communication controller of the terminal node T1; The communication controller of the terminal node T1 determines, in sequence, whether there is a terminal node belonging to another network node among all adjacent terminal nodes based on the latest adjacency relationship of the current full network topology structure and the previous full network topology structure. If yes, a connection is established with the corresponding other network node through the terminal node belonging to the other network node; Regularly measure the signal strength of all connected network nodes and sort them; Determine the network node N corresponding to the maximum signal strength max Whether the signal strength reaches the threshold: if yes, then access to the network node N max , so that data is transmitted from the terminal node T1 to the network node N via the 5G link max The preferred transmission path of the 5G base station is transmitted from the 5G base station to the core network and finally to the target device as the next data transmission path; If not, the preferred transmission path for accessing the network node N1 is selected, so that the data is transmitted from the terminal node T1 via the 5G link to the 5G base station of the network node N1, and then transmitted via the core network to the target device as the next data transmission path; If the terminal node T1 cannot establish a connection with the network node N1 to which it belongs, determining the preferred path for transmitting data from the user equipment to the target device further includes: Measuring the ad hoc network signal strength of adjacent terminal nodes within the ad hoc network range through the communication controller of the terminal node T1; When the signal strength of the ad hoc network of a neighboring terminal node T2 is greater than the threshold value, data is exchanged with the communication controller of the terminal node T2 to obtain the signal strength S2 from the terminal node T2 to the network node N2 to which it belongs; When the signal strength S2 is greater than the corresponding threshold, the data jumps from the terminal node T1 to the terminal node T2 via the self-organizing network link, is connected to the 5G base station of the network node N2 by the 5G link, and is then transmitted to the target device by the core network as the preferred path.

8. The data transmission system of a 5G self-organizing network converged network according to claim 7, characterized in that: When the network controller module and the communication controller module are damaged, the system implements data transmission through a flooding mechanism.

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