Cloud edge and end integrated deployment method applied to network slicing

Abstract

The invention discloses a cloud side-end integrated deployment method applied to network slicing, and relates to the technical field of unmanned aerial vehicle communication, a plurality of quasi-access network nodes are arranged in a target area, and after a plurality of unmanned aerial vehicle terminals are accessed to the quasi-access network nodes, the unmanned aerial vehicle terminals are deployed in the quasi-access network nodes. And according to the quantity of the video data transmitted by the unmanned aerial vehicle terminal in the current statistical period and the data transmission occupation speed in the process, obtaining the network resource allocation proportion of the unmanned aerial vehicle terminal in the next statistical period, so that the unmanned aerial vehicle terminal can perform the task in the target area. Communication resources provided for the unmanned aerial vehicle terminal can be adjusted in time according to the actual situation of the unmanned aerial vehicle terminal, so that the communication efficiency when the unmanned aerial vehicle terminal executes a task in a target area is improved.

Description

Technical Field

[0001] The present invention relates to the field of drone communication technology, and specifically to a cloud-edge-end integrated deployment method applied to network slicing. Background Art

[0002] The communication between drones is achieved by radio, and the electromagnetic waves are radiated in the entire space or in a specific direction. All drone nodes in the same space share the communication bandwidth of the space. In order to improve communication efficiency and reduce mutual interference, the communication process between drones must be managed, including the selection of transmission paths in space, the selection of communication time slots in time, and the control of radio transmission power. Usually, the mutual communication between drones is not supported by infrastructure such as fixed base stations. In particular, the strong mobility of drones makes the network topology change frequently, which brings great challenges to the reliable communication of drone clusters. The existing 4G / 5G mobile communication network has fixed ground base stations. Optical fiber communication is often used between base stations. There is a wireless star structure between the mobile terminal and the base station. Therefore, in theory, as long as the mobile terminal can switch between different base stations quickly enough, continuous and uninterrupted communication can be achieved;

[0003] How to allocate the communication resources of the base station more reasonably when there are a large number of drones within the coverage area of ​​the base station is a problem we need to solve. To this end, a cloud-edge integrated deployment method for network slicing is now provided. Summary of the invention

[0004] The purpose of the present invention is to provide a cloud-edge integrated deployment method applied to network slicing.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A cloud-edge-device integrated deployment method for network slicing includes the following steps:

[0007] Step S1: construct a drone cloud service platform and connect the constructed drone cloud service platform to the edge network;

[0008] Step S2: Setting a quasi-access network node for the accessed edge network, and transmitting a network signal for covering the target area through the set quasi-access network node;

[0009] Step S3: The UAV terminal retrieves the network signal of the target area and initiates a node access application through the retrieved network signal;

[0010] Step S4: The quasi-access network node executes the corresponding network slicing service according to the connected drone terminal.

[0011] Furthermore, the drone cloud service platform includes a database, a service center and an access unit;

[0012] The database is provided with an information storage space for storing drone information and a video storage space for storing video data acquired by the drone;

[0013] The service center is used to review the edge network to be accessed, and complete the access to the edge network after the review is passed;

[0014] The access unit is used to receive the node access application of the drone terminal, and the received node access application is sent to the service center, which reviews the node access application. After the review is passed, the review result is fed back to the access unit, and the access unit sends an instruction to the access network node to allow the drone terminal to access.

[0015] Furthermore, the process of setting up the quasi-access network node includes:

[0016] Obtain the location of the target area, and set a number of edge network nodes according to the location of the target area;

[0017] All the edge network nodes that are set up are summarized to obtain the corresponding edge network. After review and approval by the service center, quasi-access authorization is performed on each node in the edge network. The edge network nodes that have completed the quasi-access authorization are recorded as quasi-access network nodes. After the quasi-access network nodes are authorized, they provide network signals to the target area.

[0018] Furthermore, after entering the target area, the UAV terminal retrieves the network signal of the target area in real time, and sends a node access application to the quasi-access network node providing the network signal according to the retrieved network signal. The process includes:

[0019] After the drone terminal enters the target area, it retrieves all network signals in the target area;

[0020] Establishing a signal list, and sorting the retrieved network signals in the signal list from high to low according to the signal strength of the retrieved network signals;

[0021] According to the sorting results, a node access application is sent to the corresponding quasi-access network node through each network signal in turn; the node access application carries the basic information of the drone terminal;

[0022] After receiving the node access application, the quasi-access network node sends the received node access application to the service center;

[0023] The service center calls the drone information stored in the information storage space in the database based on the received node access application, and matches the basic information of the drone terminal carried in the node access application with the drone information stored in the information storage space. If the match is successful, the node access application initiated by the drone terminal is reviewed and approved, and a corresponding authorization code is generated. The generated authorization code is fed back to the quasi-access network node, otherwise it is rejected.

[0024] Furthermore, after the UAV terminal completes the communication connection with the corresponding quasi-access network node, the quasi-access network node synchronizes the basic information of the UAV terminal with the authority, and the process includes:

[0025] When the UAV terminal completes the communication connection with a quasi-access network node, the quasi-access network node sends the authorization code it holds to the UAV terminal and synchronizes the authorization code to all other quasi-access network nodes connected to the quasi-access network node.

[0026] Furthermore, the process in which the quasi-access network node executes the corresponding network slice service according to the connected drone terminal includes:

[0027] After the UAV terminal accesses the quasi-access network node, it uploads the acquired video data of the target area to the quasi-access network node in real time;

[0028] Get the number of drone terminals connected to the quasi-access network node. If the number of drone terminals connected to the quasi-access network node is not more than 1, no operation will be performed.

[0029] When the number of drone terminals connected to the quasi-access network node is more than one, the network slicing service is performed on the connected drone terminals, that is, the corresponding number of communication transmission channels are sliced ​​according to the number of connected drone terminals;

[0030] Generate a corresponding data volume change curve according to the data volume of video data transmitted by each drone terminal to the quasi-access network node;

[0031] Set the statistical period, generate the corresponding maximum and minimum values ​​of the data transmission rate according to the data volume change curve within the statistical period, and obtain the communication ratio coefficient of the drone terminal;

[0032] According to the communication proportion coefficient of each UAV terminal obtained, the network resource allocation ratio of each UAV terminal in the next statistical period is obtained;

[0033] According to the obtained network resource allocation ratio, the communication resources of each drone terminal are allocated.

[0034] Compared with the prior art, the beneficial effect of the present invention is: by setting a number of quasi-access network nodes in the target area, and after multiple drone terminals access the quasi-access network nodes, the network resource allocation ratio of the drone terminal in the next statistical period is obtained according to the amount of video data transmitted by the drone terminal in the current statistical period and the data transmission rate in the process, so that when the drone terminal performs a task in the target area, the communication resources provided to the drone terminal can be adjusted in time according to the actual situation of the drone terminal, thereby improving the communication efficiency of the drone terminal when performing tasks in the target area. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0036] like Figure 1 As shown, a cloud-edge-device integrated deployment method applied to network slicing includes the following steps:

[0037] Step S1: construct a drone cloud service platform and connect the constructed drone cloud service platform to the edge network;

[0038] Step S2: Setting a quasi-access network node for the accessed edge network, and transmitting a network signal for covering the target area through the set quasi-access network node;

[0039] Step S3: The UAV terminal retrieves the network signal of the target area and initiates a node access application through the retrieved network signal;

[0040] Step S4: The quasi-access network node executes the corresponding network slicing service according to the connected drone terminal.

[0041] It should be further explained that, in the specific implementation process, the drone cloud service platform includes a database, a service center and an access unit;

[0042] The database is provided with an information storage space for storing drone information and a video storage space for storing video data acquired by the drone; it should be further explained that, in the specific implementation process, the drone information stored in the information storage space is the basic information of the drone terminal that has completed the filing, and when the filing is completed, multiple drone terminals that have completed the filing can be associated, and a unique drone cluster sequence is generated for all associated drone terminals;

[0043] The service center is used to review the edge network to be accessed, and complete the access to the edge network after the review is passed;

[0044] The access unit is used to receive the node access application of the drone terminal, and the received node access application is sent to the service center, which reviews the node access application. After the review is passed, the review result is fed back to the access unit, and the access unit sends an instruction to the access network node to allow the drone terminal to access.

[0045] It should be further explained that, in a specific implementation process, the process of setting the quasi-access network node includes:

[0046] Obtain the location of the target area, and set a number of edge network nodes according to the location of the target area; it should be further explained that, in the specific implementation process, the edge network nodes are set based on: taking the signal coverage range of each edge network node as a benchmark, after superimposing the signal coverage ranges of all edge network nodes, the range of the target area can be completely covered, and each edge network node has an overlapping area with the signal coverage range of at least one other edge network node;

[0047] All the edge network nodes that are set up are summarized to obtain the corresponding edge network. After review and approval by the service center, quasi-access authorization is performed on each node in the edge network. The edge network nodes that have completed the quasi-access authorization are recorded as quasi-access network nodes. After the quasi-access network nodes are authorized, they provide network signals to the target area.

[0048] It should be further explained that, in the specific implementation process, after entering the target area, the UAV terminal retrieves the network signal of the target area in real time, and sends a node access application to the quasi-access network node that provides the network signal based on the retrieved network signal. The specific process includes:

[0049] After the drone terminal enters the target area, it retrieves all network signals in the target area;

[0050] Establishing a signal list, and sorting the retrieved network signals in the signal list from high to low according to the signal strength of the retrieved network signals;

[0051] According to the sorting results, a node access application is sent to the corresponding quasi-access network node through each network signal in turn; the node access application carries the basic information of the drone terminal;

[0052] After receiving the node access application, the quasi-access network node sends the received node access application to the service center;

[0053] The service center calls the drone information stored in the information storage space in the database based on the received node access application, and matches the basic information of the drone terminal carried in the node access application with the drone information stored in the information storage space. If the match is successful, the node access application initiated by the drone terminal is reviewed and approved, and a corresponding authorization code is generated. The generated authorization code is fed back to the quasi-access network node, otherwise it is rejected.

[0054] It should be further explained that, in the specific implementation process, after the node access application initiated by the drone terminal is reviewed and approved, the communication connection with the corresponding quasi-access network node is completed.

[0055] It should be further explained that, in another embodiment of the present invention, after the UAV terminal completes the communication connection with the corresponding quasi-access network node, the quasi-access network node synchronizes the basic information of the UAV terminal with the authority, and the specific process includes:

[0056] When the UAV terminal completes the communication connection with a quasi-access network node, the quasi-access network node sends the authorization code it holds to the UAV terminal, and synchronizes the authorization code to all other quasi-access network nodes connected to the quasi-access network node;

[0057] After entering the signal coverage range of other quasi-access network nodes, the drone terminal can directly complete the communication connection with other quasi-access network nodes through the authorization code, thereby realizing the authority synchronization process, making the communication connection speed between the drone terminal and the quasi-access network node faster, thereby reducing the delay time when the drone terminal switches the quasi-access network node.

[0058] It should be further explained that, in the specific implementation process, the process in which the quasi-access network node executes the corresponding network slicing service according to the connected drone terminal includes:

[0059] After the UAV terminal accesses the quasi-access network node, it uploads the acquired video data of the target area to the quasi-access network node in real time;

[0060] Get the number of drone terminals connected to the quasi-access network node. If the number of drone terminals connected to the quasi-access network node is not more than 1, no operation will be performed.

[0061] When the number of drone terminals connected to the quasi-access network node is more than one, the network slicing service is performed on the connected drone terminals, that is, the corresponding number of communication transmission channels are sliced ​​according to the number of connected drone terminals;

[0062] The connected drone terminal is numbered as i, where i=1, 2, ..., n, n is an integer and n>1;

[0063] Constructing a two-dimensional coordinate system of time with respect to data volume, and generating a corresponding data volume change curve in the two-dimensional coordinate system according to the data volume of video data transmitted by each drone terminal to the quasi-access network node;

[0064] A statistical period is set in the two-dimensional coordinate system, and the corresponding maximum and minimum values ​​of the data transmission rate are generated according to the data volume change curve in the statistical period. The maximum and minimum values ​​of the data transmission rate corresponding to the UAV terminal labeled i are recorded as ZS imax and ZS imin ; Wherein, the data transmission rate is the slope of the data volume change curve at each time point within the statistical period;

[0065] Then the communication ratio of the UAV terminal labeled i is obtained, denoted as TX i ;

[0066] in, ;

[0067] in Preset parameters for the system, and ;

[0068] According to the communication proportion coefficient of each UAV terminal obtained, the network resource allocation ratio of the UAV terminal labeled i in the next statistical period is obtained, which is recorded as Wbl i ;

[0069] in ; Where Zb is the maximum communication transmission load of the quasi-access network node, and k is the number of newly connected drone terminals in the current statistical period;

[0070] According to the obtained network resource allocation ratio, the communication resources of each UAV terminal are allocated; it should be further explained that in the specific implementation process, the communication resource allocation process is as follows:

[0071] According to the maximum load of communication transmission of the quasi-access network node and the network resource allocation ratio of each drone terminal, the upper limit of the data transmission rate corresponding to the communication transmission of each drone terminal is set.

[0072] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A cloud-edge-device integrated deployment method applied to network slicing, characterized in that: The following steps are involved: Step S1: construct a drone cloud service platform and connect the constructed drone cloud service platform to the edge network; Step S2: Setting a quasi-access network node for the accessed edge network, and transmitting a network signal for covering the target area through the set quasi-access network node; Step S3: The UAV terminal retrieves the network signal of the target area and initiates a node access application through the retrieved network signal; Step S4: The quasi-access network node executes the corresponding network slicing service according to the connected drone terminal.

2. According to claim 1, a cloud-edge-end integrated deployment method for network slicing is characterized in that: The drone cloud service platform includes a database, a service center and an access unit; The database is provided with an information storage space for storing drone information and a video storage space for storing video data acquired by the drone; The service center is used to review the edge network to be accessed, and complete the access to the edge network after the review is passed; The access unit is used to receive the node access application of the drone terminal, and the received node access application is sent to the service center, which reviews the node access application. After the review is passed, the review result is fed back to the access unit, and the access unit sends an instruction to the access network node to allow the drone terminal to access.

3. The cloud-edge-end integrated deployment method for network slicing according to claim 2 is characterized in that: The process of setting the quasi-access network node includes: Obtain the location of the target area, and set a number of edge network nodes according to the location of the target area; All the edge network nodes that are set up are summarized to obtain the corresponding edge network. After review and approval by the service center, quasi-access authorization is performed on each node in the edge network. The edge network nodes that have completed the quasi-access authorization are recorded as quasi-access network nodes. After the quasi-access network nodes are authorized, they provide network signals to the target area.

4. The cloud-edge-end integrated deployment method for network slicing according to claim 3 is characterized in that: After entering the target area, the UAV terminal retrieves the network signal of the target area in real time, and sends a node access application to the quasi-access network node that provides the network signal based on the retrieved network signal. The process includes: After the drone terminal enters the target area, it retrieves all network signals in the target area; Establishing a signal list, and sorting the retrieved network signals in the signal list from high to low according to the signal strength of the retrieved network signals; According to the sorting results, a node access application is sent to the corresponding quasi-access network node through each network signal in turn; the node access application carries the basic information of the drone terminal; After receiving the node access application, the quasi-access network node sends the received node access application to the service center; The service center calls the drone information stored in the information storage space in the database based on the received node access application, and matches the basic information of the drone terminal carried in the node access application with the drone information stored in the information storage space. If the match is successful, the node access application initiated by the drone terminal is reviewed and approved, and a corresponding authorization code is generated. The generated authorization code is fed back to the quasi-access network node, otherwise it is rejected.

5. The cloud-edge-end integrated deployment method for network slicing according to claim 4 is characterized in that: After the UAV terminal completes the communication connection with the corresponding quasi-access network node, the quasi-access network node synchronizes the basic information of the UAV terminal. The process includes: When the UAV terminal completes the communication connection with a quasi-access network node, the quasi-access network node sends the authorization code it holds to the UAV terminal and synchronizes the authorization code to all other quasi-access network nodes connected to the quasi-access network node.

6. The cloud-edge-device integrated deployment method for network slicing according to claim 5, characterized in that: The process in which the quasi-access network node executes the corresponding network slice service according to the connected drone terminal includes: After the UAV terminal accesses the quasi-access network node, it uploads the acquired video data of the target area to the quasi-access network node in real time; Get the number of drone terminals connected to the quasi-access network node. If the number of drone terminals connected to the quasi-access network node is not more than 1, no operation will be performed. When the number of drone terminals connected to the quasi-access network node is more than one, the network slicing service is performed on the connected drone terminals, that is, the corresponding number of communication transmission channels are sliced ​​according to the number of connected drone terminals; Generate a corresponding data volume change curve according to the data volume of video data transmitted by each drone terminal to the quasi-access network node; Set the statistical period, generate the corresponding maximum and minimum values ​​of the data transmission rate according to the data volume change curve within the statistical period, and obtain the communication ratio coefficient of the drone terminal; According to the communication proportion coefficient of each UAV terminal obtained, the network resource allocation ratio of each UAV terminal in the next statistical period is obtained; According to the obtained network resource allocation ratio, the communication resources of each drone terminal are allocated.

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