Communication network control method and system and communication equipment

Abstract

The invention discloses a communication network control method and system and communication equipment. The method comprises the following steps: configuring a network scheduler connected with network equipment; the network equipment sends terminal equipment information related to the PDU session and affiliated network information to a network scheduler; the network device receives a session modification request sent by the network scheduler and used for modifying the PDU session, wherein the session modification request is generated based on the change of the service type of the terminal device; the network device modifies the corresponding PDU session according to the session modification request so as to update a first network to which the PDU session belongs currently to a second network serving as a target network; and the network equipment issues updated network configuration information to the terminal equipment according to the modified PDU session, so that the terminal equipment exits the first network and accesses the second network. Based on the method, the purpose of automatically replacing the communication network according to the service type of the terminal equipment can be achieved, and resources of the communication network are efficiently utilized while user requirements are met.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a communication network control method, system and communication equipment. Background Art

[0002] With the rapid development of the fifth-generation mobile communication network (5G Core, 5GC), the number and types of intelligent real-time devices are increasing. These devices are widely used in various application scenarios with high time sensitivity requirements, such as smart driving, industrial automation, and the Internet of Things. In order to meet the requirements of these applications for low latency, high reliability, and high bandwidth, Time-Sensitive Networking (TSN) has gradually become a key network architecture choice.

[0003] However, compared with traditional ordinary networks, TSN networks have significantly higher requirements for network resources. This includes higher bandwidth, stricter delay control, and more complex network management mechanisms. This high resource consumption has led to a significant increase in operating costs, especially in the current situation where network equipment resources are limited, and it is impossible to reasonably support all terminal devices to use the TSN network at the same time. Trying to connect all terminal devices to the TSN network is not only economically unfeasible, but also technically difficult to achieve.

[0004] There are two main control strategies for network resources in 5GC at present. One is that the terminal equipment uses TSN network from the beginning to the end of the online operation; the other is that the terminal equipment always uses ordinary network. This will either waste network resources or fail to meet business requirements. For example, intelligent driving basically uses TSN network all the time, but when the vehicle has stopped driving, there is no great requirement for data transmission delay and ordinary network can be used to replace TSN network, thus saving TSN network resources. Since the current communication system does not have this business scenario control capability, some terminal devices have been occupying TSN network. With the increase of such intelligent devices, the impact on network resources, reliability and security are huge. Summary of the invention

[0005] The object of the present invention is to provide a communication network control method, system and communication device which can dynamically modify the network type of the accessed network according to the service type of the terminal device.

[0006] In order to achieve the above object, the present invention provides a communication network control method, which includes:

[0007] configuring a network scheduler connected to the network device;

[0008] After the network device creates a PDU session for the terminal device, the terminal device information and the network information related to the PDU session are sent to the network scheduler;

[0009] The network device receives a session modification request sent by the network scheduler for modifying the PDU session, wherein the session modification request is generated based on a change in a service type of the terminal device;

[0010] The network device modifies the corresponding PDU session according to the session modification request, so as to update the first network currently belonging to the PDU session to the second network as the target network;

[0011] The network device sends updated network configuration information to the terminal device according to the modified PDU session, so that the terminal device exits the first network and accesses the second network

[0012] Preferably, after the network device creates a PDU session for the terminal device, it also sends first resource location information related to the PDU session to the network scheduler, and the first resource location information is used to locate the PDU session. The network scheduler searches for the PDU session to be modified based on the first resource location information to generate the session modification request.

[0013] Preferably, after the network device creates a PDU session for the terminal device, it also sends second resource location information of the network scheduler to the terminal device, where the second resource location information is used to locate the network scheduler.

[0014] Preferably, when the service type of the terminal device changes, the terminal device actively initiates a network modification request to the network scheduler based on the second resource location information, and the network modification request includes network information of the communication network that the terminal device currently needs to access.

[0015] Preferably, the network device generates and stores the second resource location information when accepting registration of the network scheduler.

[0016] Preferably, when the terminal device is started and establishes a connection with the network device, the network device configures the communication network to which the terminal device is connected according to a default configuration.

[0017] Preferably, the network device includes a base station and a core network, and the network scheduler is connected to the core network through the base station.

[0018] The present invention also provides a communication device, which includes a network device and a network scheduler connected to the network device, and the network device and the network scheduler control the network connection status of the terminal device based on the communication network control method as described above.

[0019] The present invention also provides a communication network control system, which comprises:

[0020] one or more processors;

[0021] Memory;

[0022] and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs including instructions for executing the communication network control method as described above.

[0023] The present invention also provides a computer-readable storage medium, which includes a computer program, and the computer program can be executed by a processor to implement the communication network control method as described above.

[0024] Compared with the prior art, the present invention provides a communication network control method. Through the configuration and control of a network scheduler, when the service type of a terminal device changes, the network scheduler sends a session modification request to the network device, and the network device modifies the PDU session of the terminal device according to the session modification request to change the network to which the terminal device is connected, for example, from an efficient network to an ordinary network, thereby achieving the purpose of automatically changing the communication network according to the service type of the terminal device, and efficiently utilizing the resources of the communication network while meeting user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The figure is a flow chart of the communication network control method in an embodiment of the present invention.

[0026] Figure 2 It is a structural diagram of a communication network control system in an embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the working state of the communication network control system updating the network in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0029] Nowadays, mobile communication networks include high-efficiency networks represented by time-sensitive networks (TSN) and ordinary networks. For some terminal devices, in use scenarios with high real-time requirements, high-efficiency services provided by high-efficiency networks are required, while in other scenarios, there are no special requirements for communication networks, and ordinary networks can meet service requirements. Therefore, in order to meet the differentiated needs of users for communication networks in different use scenarios, this embodiment provides a communication network control method for dynamically adjusting the accessed communication network according to the service type of the terminal device, such as Figure 1 In conjunction with Figure 2 and Figure 3 , the control method includes the following:

[0030] S10: Configuring a network scheduler connected to the network device.

[0031] S11: After the network device creates a PDU session for the terminal device, it sends the terminal device information and network information related to the PDU session to the network scheduler. The terminal device information includes the IMSI code. The network identifies the IMSI code to determine the user's identity and the operator to which it belongs, so as to provide corresponding services to the user. The network information is the network currently connected, such as the TSN network.

[0032] S12: The network device receives a session modification request sent by the network scheduler for modifying the PDU session, where the session modification request is generated based on a change in the service type of the terminal device.

[0033] S13: The network device modifies the corresponding PDU session according to the session modification request to update the first network currently belonging to the PDU session to the second network as the target network to adapt to new service requirements. For example, the first network is a TSN network and the second network is a common network.

[0034] S14: The network device sends updated network configuration information to the terminal device according to the modified PDU session, so that the terminal device exits the first network and accesses the second network.

[0035] Specifically, when the terminal device is used as a vehicle, when the vehicle starts and starts driving, the network device creates a PDU session for the vehicle. At this time, the vehicle's communication module establishes a connection with the 5GC through the network device and establishes a PDU session based on the TSN network to meet the needs of real-time data transmission.

[0036] When the vehicle detects that it is about to stop driving or has entered a parking state, the service type changes from "high latency sensitive" to "low latency sensitive". Based on the change in the vehicle's service type, the network scheduler generates a session modification request for modifying the PDU session. The request instructs the network device to switch the current PDU session from the TSN network to the normal network to adapt to the new service requirements.

[0037] After receiving the session modification request sent by the network scheduler, the network device parses the request content and confirms that the PDU session needs to be updated from the first network (TSN network) to the second network (normal network).

[0038] The network device modifies the corresponding PDU session according to the session modification request. The specific operation includes disconnecting the current TSN network connection, re-establishing the connection with the ordinary network, and ensuring the continuity of the session and seamless transmission of data.

[0039] After the modification is completed, the network device sends the updated network configuration information to the vehicle's communication module, instructing the vehicle to exit the TSN network and access the ordinary network. This configuration update may include new network parameters, connection identifiers, and other information.

[0040] After receiving the updated network configuration information, the vehicle's communication module automatically disconnects from the TSN network and connects to the normal network. During this process, the vehicle's communication function is not affected and data can continue to be exchanged, but it uses the normal network with lower resource consumption.

[0041] Through the above embodiments, it can be seen that the communication network control method of the present invention can dynamically adjust the network type to which the PDU session belongs according to the actual service type and usage scenario of the terminal device. This dynamic switching mechanism has the following advantages:

[0042] Optimize network resource utilization: In scenarios where high latency and high reliability are not required, switching to a normal network can save TSN network resources and avoid resource waste.

[0043] Reduce operating costs: By rationally allocating network resources and reducing reliance on high-resource-consuming networks, overall operating costs can be reduced.

[0044] Improve network efficiency: Dynamically adjust network types to better meet diverse business needs and improve the overall service capabilities and efficiency of the network.

[0045] Enhance network scalability: As the number of intelligent devices increases, reasonable allocation of network resources can reduce network pressure and improve network scalability and stability.

[0046] Improve system flexibility: Be able to switch networks according to real-time business needs, improve the system's adaptability to changing environments, and ensure business continuity and reliability.

[0047] On the other hand, the network equipment includes a base station and a core network, and the network scheduler is connected to the core network through the base station. After the core network generates a PDU session for the terminal device, it sends information to the network scheduler and the terminal device through the base station.

[0048] On the other hand, the same terminal device may generate different PDU sessions. For example, for a vehicle-mounted device, voice and road monitoring services can be controlled by different service flows. Road monitoring services have high real-time requirements; voice services have low network requirements. Therefore, it is necessary to process different PDU sessions. In this regard, after the network device creates a PDU session for the terminal device, it also sends the first resource location information (that is, the first URL) related to the PDU session to the network scheduler. The first URL is used to locate the PDU session. The network scheduler searches for the PDU session to be modified according to the first URL to generate a session modification request.

[0049] Furthermore, after the network device creates a PDU session for the terminal device, it also sends the second resource location information (ie, the second URL) of the network scheduler to the terminal device, and the second resource location information is used to locate the network scheduler.

[0050] Through the setting of the second URL, when the terminal device detects that its service type has changed, the terminal device actively accesses the network scheduler based on the second URL and initiates a network switching request to the network scheduler. The network switching request includes the network information of the communication network that the terminal device currently needs to access.

[0051] The network device generates and stores the second URL when accepting registration of the network scheduler.

[0052] The registration process of the network scheduler is as follows:

[0053] The network scheduler initiates a registration request to the base station, the request includes information such as load status, the first URL of the accepted terminal device, and what types of terminal devices can be accepted;

[0054] After the base station accepts the registration request from the network scheduler, it stores the information of the network scheduler and sends it to the terminal device when requesting a session with the terminal device.

[0055] Then, after the core network processes the creation of the PDU session of the terminal device, the base station will send the IMSI, the first URL and the network information of the network to which the current terminal device is connected related to the current PDU session to the network scheduler. At the same time, the second URL of the network scheduler will be sent to the terminal device through the PDU session.

[0056] It should also be noted that when the terminal device is started and establishes a connection with the network device, the network device configures the communication network to which the terminal device is connected according to the default configuration.

[0057] In summary, the present invention discloses a communication network control method for dynamically modifying the network type according to the service type of the terminal device, which is configured with a network scheduler connected to the base station. When the service usage scenario of the terminal device changes, the terminal device initiates a network switching request to the network scheduler through a first URL; after receiving the request, the network scheduler determines whether the network currently accessed by the terminal device belongs to the network corresponding to the usage scenario currently required to be accessed. If not, a session modification request is initiated to the core network through the base station, and the network parameters that need to be modified are carried, such as a TSN identifier, etc.; the core network accepts the session modification request and sends corresponding network modification signaling to the base station; finally, the base station pushes the network request result accepted by the core network to the terminal device, and the network change is completed.

[0058] This network scheduler that can dynamically adjust the communication network type breaks the traditional single control method of the communication network. It can not only realize dynamic network type adjustment through the network scheduler, but also add various network types for different scenarios for terminal devices, so that resources of various network types can be better and more efficiently used in 5GC or the next generation of evolved network environment, instead of being occupied and wasted by a single network. It not only ensures the stability of the network, but also reduces the loss of network resources.

[0059] In another preferred embodiment of the present invention, a communication device is also disclosed, which includes a network device and a network scheduler connected to the network device, and the network device and the network scheduler control the network connection status of the terminal device based on the communication network control method in the above embodiment.

[0060] The present invention also discloses a communication network control system system, which includes one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the program includes instructions for executing the communication network control system method as described above. The processor can adopt a general central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits to execute relevant programs to implement the functions required to be executed by the modules in the communication network control system system of the embodiment of the present application, or to execute the communication network control system method of the method embodiment of the present application.

[0061] The present invention also discloses a computer-readable storage medium, which includes a computer program, and the computer program can be executed by a processor to complete the communication network control system method as described above. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium can be a read-only memory (ROM), or a random access memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a tape, a magnetic disk, or an optical medium, such as a digital versatile disc (DVD), or a semiconductor medium, such as a solid state disk (SSD), etc.

[0062] The embodiment of the present application also discloses a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. A processor of an electronic device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the electronic device executes the above-mentioned communication network control system method.

[0063] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A communication network control method, characterized in that: include: configuring a network scheduler connected to the network device; After the network device creates a PDU session for the terminal device, the terminal device information and the network information related to the PDU session are sent to the network scheduler; The network device receives a session modification request sent by the network scheduler for modifying the PDU session, wherein the session modification request is generated based on a change in a service type of the terminal device; The network device modifies the corresponding PDU session according to the session modification request, so as to update the first network currently belonging to the PDU session to the second network as the target network; The network device sends updated network configuration information to the terminal device according to the modified PDU session, so that the terminal device exits the first network and accesses the second network.

2. The communication network control method according to claim 1, characterized in that: After the network device creates a PDU session for the terminal device, it also sends first resource location information related to the PDU session to the network scheduler. The first resource location information is used to locate the PDU session. The network scheduler searches for the PDU session to be modified based on the first resource location information to generate the session modification request.

3. The communication network control method according to claim 1, characterized in that: After the network device creates a PDU session for the terminal device, it also sends the second resource location information of the network scheduler to the terminal device, where the second resource location information is used to locate the network scheduler.

4. The communication network control method according to claim 3, characterized in that: When the service type of the terminal device changes, the terminal device actively initiates a network modification request to the network scheduler based on the second resource location information, and the network modification request includes network information of the communication network that the terminal device currently needs to access.

5. The communication network control method according to claim 3, characterized in that: The network device generates and stores the second resource location information when accepting registration of the network scheduler.

6. The communication network control method according to claim 1, characterized in that: When the terminal device is started and establishes a connection with the network device, the network device configures the communication network to which the terminal device is connected according to the default configuration.

7. The communication network control method according to claim 1, characterized in that: The network device includes a base station and a core network, and the network scheduler is connected to the core network through the base station.

8. A communication device, characterized in that: It comprises a network device and a network scheduler connected to the network device, wherein the network device and the network scheduler control the network connection status of the terminal device based on the communication network control method according to any one of claims 1 to 7.

9. A communication network control system, characterized in that: include: one or more processors; Memory; and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the programs comprising instructions for executing the communication network control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The invention comprises a computer program which can be executed by a processor to implement the communication network control method as claimed in any one of claims 1 to 7.

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