A strong real-time virtual-real linkage system and method for a time division multiple access protocol

Abstract

This invention discloses a robust real-time virtual-real linkage system and method for time-division multiple access protocols, comprising: a virtual-real hybrid test environment hardware platform, a virtual-real hybrid test environment simulation module, a platform external interface module, a virtual-real hybrid signal processing board, an antenna, a networking terminal, a terminal main control device, and a system status monitoring device; wherein, the virtual-real hybrid test environment simulation module includes multiple digital prototypes of networking terminals, a wireless channel simulation module, and a virtual-real hybrid interface adaptation module. This invention effectively solves the challenge of agile and reliable verification of large-scale node networking.

Description

Technical Field

[0001] This invention belongs to the field of wireless communication technology, and in particular relates to a strong real-time virtual-real linkage system and method for time division multiple access protocols. Background Technology

[0002] With the rapid development of communication technology, the scale and complexity of information networks have increased significantly. Large-scale node networking protocols must undergo thorough testing before formal application. Therefore, constructing a realistic, cost-effective, flexible, and scalable network environment is crucial for protocol verification. Currently, domestic and international verification methods for wireless ad hoc networks mainly fall into three categories: full physical verification, digital simulation verification, and a combination of physical and virtual verification.

[0003] Full physical verification requires the development of networking products and supporting ground testing equipment. Furthermore, specific sites such as microwave anechoic chambers need to be constructed to create a wireless transmission environment. Therefore, full physical verification consumes enormous human and material resources, making it difficult to conduct large-scale networking verification tests under cost constraints and failing to meet mission requirements. In addition, current full physical verification methods are only applicable to specific tasks and phases, lacking flexibility in scenario construction and unable to support multi-task, full-process verification of protocol functions and networking capabilities.

[0004] To reduce the cost of building large-scale network verification environments and improve testing flexibility, digital simulation can be used to verify the functionality and networking capabilities of Time Division Multiple Access (TDMA) protocols. Current digital simulation verification methods primarily rely on network simulation platforms to build network environments and digitally model the protocol stack. Common network digital simulation environments include software platforms such as OPNET, OMNet, and NS-n. These platforms each have their strengths and weaknesses in terms of model accuracy, model portability, and scenario verification capabilities. They typically only simulate key characteristics, and their simulation performance cannot fully and realistically represent the performance of the network protocol.

[0005] To reduce the cost of building a test environment while enhancing the realism of protocol verification, a hardware-in-the-loop (HIL) verification approach combining virtual and physical methods is typically employed. Implementation methods include integrating actual business flows, directly exchanging protocol information via interfaces such as serial ports and network ports, or constructing a network using numerous semi-physical products and physical products. However, these methods suffer from issues such as incomplete protocol verification, the need to modify the interfaces of physical products, or high costs associated with the verification environment. Summary of the Invention

[0006] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a strong real-time virtual-real linkage system and method for time division multiple access protocols, which effectively solves the problem of agile and reliable verification of large-scale node networking.

[0007] The objective of this invention is achieved through the following technical solution: A strong real-time virtual-real linkage system oriented towards time-division multiple access protocols, comprising: a virtual-real hybrid experimental environment hardware platform, a virtual-real hybrid experimental environment simulation module, a platform external interface module, a virtual-real hybrid signal processing board, an antenna, a networking terminal, a terminal main control device, and a system status monitoring device; wherein, the system status monitoring device sends a start test command to the virtual-real hybrid experimental environment hardware platform, and the platform external interface module starts the virtual-real hybrid experimental environment simulation module after receiving the start test command, and the networking terminal digital prototype of the virtual-real hybrid experimental environment simulation module starts running; the system status monitoring device sends simulated service data to the virtual-real hybrid experimental environment hardware platform, and the platform external interface module sends the service data to the corresponding networking terminal digital prototype after receiving the service data; the networking terminal digital prototype generates network maintenance data and transmits the network maintenance data to the wireless channel simulation module of the virtual-real hybrid experimental environment simulation module; the networking terminal digital prototype judges the received service data, and for service data that needs to be transmitted to other networking terminal digital prototypes, it... Service data is transmitted to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. Network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data, and configuration frames are transmitted to the virtual-real hybrid interface adaptation module of the virtual-real hybrid test environment simulation module. The virtual-real hybrid interface adaptation module sends the service data, network maintenance data, and configuration frames to the corresponding destination virtual-real hybrid signal processing board through the virtual-real hybrid test environment hardware platform. The virtual-real hybrid signal processing board processes the service data and network maintenance data according to the configuration frame settings and then completes wireless radiation through the antenna in the required time slot. The processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion. The network terminal receives the service data and network maintenance data. For the received network maintenance data, network maintenance processing is performed internally in the network terminal. For the received service data, it is sent to the terminal master control device. The terminal master control device stores the received service data locally and sends it to the system status monitoring device.

[0008] In the aforementioned strong real-time virtual-real linkage system based on the time division multiple access protocol, the terminal master control device sends simulated second service data to the network terminal corresponding to the terminal master control device; the network terminal judges the received second service data, and for service data that needs to be transmitted to other nodes, it transmits it to the lower layer of the network terminal protocol for processing and wireless transmission. The processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion. For service data used locally by the network terminal, it transmits it to the lower layer of the network terminal protocol for local network maintenance processing.

[0009] In the aforementioned real-time virtual-physical linkage system oriented towards time division multiple access protocols, the second service data and network maintenance data that need to be transmitted to other network terminals are directly transmitted wirelessly after being processed by the physical layer of the network terminals; the processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion.

[0010] In the aforementioned strong real-time virtual-real linkage system oriented towards time-division multiple access protocols, for the second service data and network maintenance data that need to be transmitted to the network terminal digital prototype, the network terminal transmits radio frequency signals for the second service data and network maintenance data. The network terminal digital prototype generates a second configuration frame according to the time slot table and transmits the second configuration frame to the virtual-real integration interface adaptation module. The virtual-real integration interface adaptation module sends the second configuration frame to the corresponding virtual-real integration signal processing board through the virtual-real integration test environment hardware platform. The virtual-real integration signal processing board receives the radio frequency signals of the second service data and network maintenance data through the antenna in the required time slot according to the configuration frame settings. The virtual-real integration signal processing board processes the received radio frequency signals to obtain processed data and transmits the processed data to the virtual-real integration interface adaptation module through the virtual-real integration test environment hardware platform. The virtual-real integration interface adaptation module forwards the processed data to the network terminal digital prototype. The network terminal digital prototype performs network maintenance processing based on the network maintenance data in the received processed data and sends the service data in the processed data to the system status monitoring equipment.

[0011] In the aforementioned real-time virtual-physical linkage system oriented towards time division multiple access protocols, the processing includes downconversion, de-hopping, demodulation, deinterleaving, decoding, and descrambling.

[0012] In the aforementioned strong real-time virtual-real linkage system oriented towards time division multiple access protocol, the networking terminal has a corresponding digital prototype of the networking terminal inside the virtual-real combination test environment simulation module, which is called the mapping node. According to the time slot table, the mapping node generates a configuration frame when it needs to send service or network maintenance data, and passes it to the virtual-real combination interface adaptation module inside the virtual-real combination test environment simulation module.

[0013] In the aforementioned real-time virtual-real linkage system oriented towards time division multiple access protocols, the virtual-real combined test environment simulation module includes multiple network terminal digital prototypes, a wireless channel simulation module, and a virtual-real combined interface adaptation module.

[0014] In the aforementioned strong real-time virtual-real linkage system oriented towards time division multiple access protocol, the antenna is used to radiate wireless signals to the network terminal or receive wireless signals radiated by the network terminal, and is connected to the virtual-real combination signal processing board. Each virtual-real combination processing board is connected to one or more antennas.

[0015] In the aforementioned strong real-time virtual-real linkage system oriented towards time division multiple access protocol, the virtual-real combined signal processing board can synchronize time through network maintenance data sent by the network terminal digital prototype. When the virtual-real combined signal processing board receives network maintenance data with time reference information, it first adjusts its local time according to the time synchronization information contained therein, thereby synchronizing the virtual-real combined signal processing board with the network terminal digital prototype. Then, it sends the synchronization information to the network terminal. After receiving the network maintenance data with time reference information, the network terminal adjusts its local time according to the time synchronization information contained therein, thereby synchronizing the network terminal with the virtual-real combined signal processing board.

[0016] A robust real-time virtual-real linkage method for time-division multiple access protocols is proposed. The system status monitoring device sends a start test command to the virtual-real hybrid test environment hardware platform. Upon receiving the start test command, the platform's external interface module activates the virtual-real hybrid test environment simulation module, and the network terminal digital prototype begins operation. The system status monitoring device sends simulated service data to the virtual-real hybrid test environment hardware platform. Upon receiving the service data, the platform's external interface module sends it to the corresponding network terminal digital prototype. The network terminal digital prototype generates network maintenance data and transmits it to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network terminal digital prototype judges the received service data; for service data that needs to be transmitted to other network terminal digital prototypes, it transmits the service data to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding... The target network terminal digital prototype; for service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data, and configuration frames are transmitted to the virtual-real interface adaptation module of the virtual-real combined test environment simulation module; the virtual-real interface adaptation module sends the service data, network maintenance data, and configuration frames to the corresponding target virtual-real combined signal processing board through the virtual-real combined test environment hardware platform; the virtual-real combined signal processing board processes the service data and network maintenance data according to the configuration frame settings and then completes wireless radiation through the antenna in the required time slot; the processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion; the network terminal receives the service data and network maintenance data, performs network maintenance processing internally on the received network maintenance data, and sends the received service data to the terminal master control device; the terminal master control device stores the received service data locally and sends it to the system status monitoring device.

[0017] An electronic device includes: a memory for storing computer-readable instructions; and a processor for executing the computer-readable instructions to perform a strong real-time virtual-real linkage method based on a time-division multiple access protocol.

[0018] Compared with the prior art, the present invention has the following advantages: (1) The present invention implements protocol processing through digital model, generates physical layer configuration frames consistent with the terminal by combining high-precision digital model, configures virtual and real combined signal processing board to realize signal transmission and reception processing, and the two are combined to realize bidirectional wireless interaction between the simulation platform digital model and the physical networking terminal. (2) In this invention, considering the characteristics of time division multiple access technology and millisecond-level time slot length operation, a virtual-real synchronization method is adopted, in which the simulation platform operates with high precision timing, the virtual-real combined signal processing board synchronizes with the virtual nodes in the simulation platform, and the networking terminal synchronizes with the virtual-real combined signal processing board, so as to realize the stable collaborative operation of the digital model and the networking terminal in the simulation platform; (3) This invention addresses the needs of protocol verification by using system status monitoring to uniformly control the terminal master control device and virtual nodes. It can simulate the state of node network loss and recovery, and ensure the functionality and performance verification of virtual and real nodes based on a unified network situation. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of a strong real-time virtual-real linkage system oriented towards time-division multiple access protocol provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the virtual-physical interconnection relationship provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the virtual-to-real interaction process provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the real-to-virtual interaction process provided in an embodiment of the present invention. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1This is a schematic diagram of a strong real-time virtual-physical linkage system based on a time-division multiple access protocol provided in an embodiment of the present invention. Figure 1 As shown, this strong real-time virtual-real linkage system for time-division multiple access protocols includes: a virtual-real hybrid test environment hardware platform, a virtual-real hybrid test environment simulation module, a platform external interface module, a virtual-real hybrid signal processing board, an antenna, a networking terminal, a terminal main control device, and a system status monitoring device. Among them, The virtual-real combined test environment simulation module includes multiple network terminal digital prototypes, a wireless channel simulation module, and a virtual-real combined interface adaptation module.

[0022] The system status monitoring device sends a start test command to the virtual-real combined test environment hardware platform. After receiving the start test command, the platform's external interface module starts the virtual-real combined test environment simulation module, and the network terminal digital prototype integrated in the virtual-real combined test environment simulation module begins to run.

[0023] The system status monitoring device sends simulated business data to the virtual-real hybrid test environment hardware platform. After receiving the business data, the platform's external interface module provides the corresponding network terminal digital prototype.

[0024] The network maintenance data generated by the network terminal digital prototype is transmitted to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network terminal digital prototype judges the received service data. For service data that needs to be transmitted to other network terminal digital prototypes, the service data is transmitted to the wireless channel simulation module of the virtual-real hybrid test environment simulation module through the physical layer of this node. The network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data and configuration frames generated by this node are transmitted to the virtual-real hybrid interface adapter of the virtual-real hybrid test environment simulation module. The module; the virtual-real interface adaptation module sends business data, network maintenance data, and configuration frames generated by this node to the corresponding destination virtual-real signal processing board through the virtual-real test environment hardware platform; the virtual-real signal processing board processes the business data and network maintenance data according to the configuration frame settings and then completes wireless radiation through the antenna in the required time slot; the processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion; the network terminal receives the business data and network maintenance data, performs network maintenance processing on the received network maintenance data within the network terminal, and sends the received business data to the terminal master control device; the terminal master control device stores the received business data locally and sends it to the system status monitoring device.

[0025] The terminal master control device sends simulated second service data to the corresponding network terminal; the network terminal judges the received second service data, and if the service data needs to be transmitted to other nodes, it is transmitted to the lower layer of the network terminal protocol for processing and wireless transmission, and if the service data is used locally by the network terminal, it is transmitted to the lower layer of the network terminal protocol for local network maintenance processing.

[0026] For secondary service data and network maintenance data that need to be transmitted to other network terminals or digital prototypes of network terminals, they are directly transmitted wirelessly after being processed by the physical layer of the network terminal; the processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion.

[0027] For the second service data and network maintenance data that need to be transmitted to the digital prototype of the networking terminal, the networking terminal transmits the radio frequency (RF) signals of the second service data and network maintenance data. The digital prototype of the networking terminal generates a second configuration frame according to the time slot table and transmits the second configuration frame to the virtual-real interface adaptation module. The virtual-real interface adaptation module sends the second configuration frame to the corresponding virtual-real signal processing board through the virtual-real test environment hardware platform. The virtual-real signal processing board receives the RF signals of the second service data and network maintenance data through the antenna in the required time slot according to the configuration frame settings. The virtual-real signal processing board processes the received RF signals to obtain processed data and transmits the processed data to the virtual-real interface adaptation module through the virtual-real test environment hardware platform. The virtual-real interface adaptation module forwards the processed data to the digital prototype of the networking terminal. The digital prototype of the networking terminal performs network maintenance processing based on the network maintenance data in the received processed data and sends the service data in the processed data to the system status monitoring equipment. The processing includes down-conversion, de-hopping, demodulation, deinterleaving, decoding, and descrambling.

[0028] The system status monitoring device sends a start test command to the virtual-real hybrid test environment hardware platform. Upon receiving the command, the platform's external interface module starts the virtual-real hybrid test environment simulation module, and the network terminal digital prototype integrated within this module begins operation. The system status monitoring device sends simulated service data to the virtual-real hybrid test environment hardware platform. The platform's external interface module receives the service data and forwards it to the corresponding network terminal digital prototype. The network terminal digital prototype judges the received service data. For service data that needs to be transmitted to other nodes and network maintenance data generated by the network terminal digital prototype, it transmits the data to the lower layer of the digital prototype protocol, passing it through the physical layer of this node to the wireless channel simulation module within the virtual-real hybrid test environment simulation module. The network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to external network terminals, the wireless channel simulation module processes the data and sends it to the corresponding destination network terminal digital prototype. After completing link layer processing, the network maintenance data, service data, and configuration frames generated by the local node are transmitted to the virtual-real interface adaptation module within the virtual-real interface simulation module of the virtual-real interface test environment. The virtual-real interface adaptation module then sends the service data, network maintenance data, and configuration frame data generated by the local node to the corresponding virtual-real signal processing board through the virtual-real interface test environment hardware platform. The virtual-real signal processing board processes the service data and network maintenance data according to the configuration frame settings and transmits them in the required time slots and according to the corresponding parameters, completing wireless radiation through the antenna. The processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion. The network terminal receives the wireless signal through its integrated antenna. For the received network maintenance data, network maintenance processing is performed internally within the network terminal. For the received service data, it is sent to the terminal master control device. The terminal master control device stores the received service data locally and sends it to the system status monitoring device.

[0029] The terminal master control device sends simulated service data to network terminal A. Network terminal A judges the received service data, and for service data that needs to be transmitted to other nodes and network maintenance data generated by the terminal itself, it passes it to the lower layer of the protocol for processing, and finally transmits it to the physical layer of the network terminal. After physical layer processing, it is wirelessly radiated through the antenna of the network terminal itself. Among them, for data whose destination node is another network terminal, wireless transmission and processing are performed directly between physical devices; for data whose destination node is the digital prototype of the network terminal, the interaction process is as follows: Within the virtual-real hybrid test environment simulation module, network terminal A has a corresponding digital prototype, referred to as a mapping node. Based on the time slot table, the mapping node generates a configuration frame when it needs to send service or network maintenance data, and passes it to the virtual-real hybrid interface adaptation module within the simulation module. The virtual-real hybrid interface adaptation module then sends the configuration frame generated by the mapping node to the corresponding virtual-real hybrid signal processing board via the virtual-real hybrid test environment hardware platform. This virtual-real hybrid signal processing board, according to the configuration frame settings, receives the data via the antenna in the required time slot and according to the corresponding parameters. The virtual-real hybrid signal processing board performs down-conversion, de-hopping, demodulation, deinterleaving, decoding, and descrambling on the received RF signal, and then transmits the data to the virtual-real hybrid interface adaptation module via the virtual-real hybrid test environment hardware platform. The virtual-real hybrid interface adaptation module forwards the data to the corresponding destination network terminal digital prototype. For received network maintenance data, network maintenance processing is performed within the network terminal digital prototype; for received service data, it is sent to the platform's external interface module. The platform's external interface module then sends the service data to the system status monitoring equipment.

[0030] The virtual-real hybrid test environment hardware platform is used to integrate the virtual-real hybrid test environment simulation module and the platform's external interface module. The virtual-real hybrid test environment simulation module interacts with the virtual-real hybrid signal processing board through the hardware platform's high-speed bus, such as PCIE and RapidIO. The platform's external interface module interacts with system status monitoring equipment through the hardware platform's interface, such as fiber optic cables and network ports.

[0031] The virtual-real hybrid test environment simulation module mainly includes a network terminal digital prototype, a wireless channel simulation module, and a virtual-real hybrid interface adaptation module. The underlying layer is a mature network simulation engine, providing a runtime environment for the network terminal digital prototype. The network terminal digital prototypes interact with each other through the wireless channel simulation module. This module calculates and processes data based on the distance, transmit power, and receive performance between the communication digital prototypes. When the receiver's link margin meets the receiving sensitivity, the network terminal digital prototype, acting as the destination node, receives data normally. The virtual-real hybrid interface adaptation module receives service data, network maintenance data, and configuration frame data sent by the network terminal digital prototypes and transmits this data to the corresponding virtual-real hybrid signal processing board through the virtual-real hybrid test environment hardware platform. Simultaneously, it receives service data and network maintenance data sent by the virtual-real hybrid signal processing board through the virtual-real hybrid test environment hardware platform and forwards this data to the corresponding destination network terminal digital prototype.

[0032] The digital prototype of the networking terminal simulates the network layer, link layer protocols, and physical layer transmit / receive capabilities of the networking terminal. Based on whether the digital prototype is mapped to an external physical networking terminal and whether the communication object includes an external physical networking terminal, it is further classified into three categories: Virtual node: It contains complete network layer, link layer protocols and physical layer send and receive functions, and performs all functions during the verification process; Semi-physical node: When a virtual node needs to communicate with a network terminal, it becomes a semi-physical node. This node contains complete network layer and link layer protocols, and the physical layer functions are replaced by a virtual-physical combined signal processing board to realize interaction with the network terminal. Mapping Node: It contains complete network layer and link layer protocol processing functions, but the actual processing functions are implemented by the external networking terminal during the verification process. It only generates configuration frame data in the time slot table and sends it to the virtual and physical combined signal processing board, and does not interact with other virtual nodes.

[0033] The platform's external interface module is used to realize data interaction between the system status monitoring equipment and the virtual-real combined test environment simulation module. It receives instruction data and business data sent by the system status monitoring equipment through interfaces such as fiber optic cables and network ports, and forwards them to the virtual-real combined test environment simulation module. It also receives business data sent by digital prototypes of each network terminal in the virtual-real combined test environment simulation module, and sends it to the system status monitoring equipment through interfaces such as fiber optic cables and network ports.

[0034] The virtual-real hybrid signal processing board is used to realize the transmission and reception processing between the digital prototype of the networking terminal and the physical networking terminal. It is integrated into the virtual-real hybrid test environment hardware platform and can perform time synchronization through the network maintenance data sent by the digital prototype of the networking terminal. In this embodiment, one virtual-real hybrid signal processing board is used. The virtual-real hybrid test environment simulation module interacts with the corresponding virtual-real hybrid signal processing board through the high-speed bus interface of the virtual-real hybrid test environment hardware platform to exchange service data, network maintenance data, and configuration frame data. The virtual-real hybrid signal processing board processes the service data and network maintenance data sent by the virtual-real hybrid test environment simulation module according to the configuration frame, and then sends them to the networking terminal through the radio frequency cable and antenna. The virtual-real hybrid signal processing board receives and processes the signals sent by the networking terminal through the antenna and radio frequency cable according to the configuration frame, specifically including down-conversion, de-hopping, demodulation, de-interleaving, decoding, and descrambling. The processed data is sent to the virtual-real hybrid test environment simulation module through the high-speed bus interface of the virtual-real hybrid test environment hardware platform.

[0035] The antenna is used to radiate wireless signals to the network terminal or to receive wireless signals radiated by the network terminal. It is connected to the virtual and real combined signal processing board. Each virtual and real combined processing board is connected to one or more antennas, the number of which is determined by the number of channels involved in the network communication.

[0036] The networking terminal is a physical product containing complete network layer, link layer protocols and physical layer processing functions. One or more terminals can be included when performing virtual-physical linkage status verification.

[0037] The system status monitoring platform is used to monitor the status of the network terminal digital prototype, issue start test commands to the hardware platform of the virtual-physical hybrid test environment, issue simulated service data to the network terminal digital prototype, monitor the status of the network terminal, issue simulated service data to the network terminal, monitor the overall network status, and can simultaneously issue configuration service data to the network terminal and virtual nodes during the test to achieve unified control of the virtual and physical systems.

[0038] The terminal master control device is used to power and monitor the status of the network terminals. It can send simulated service data to the network terminals through local configuration or by receiving instructions from the system status monitoring platform.

[0039] The virtual-real hybrid test environment hardware platform is used to integrate the virtual-real hybrid test environment simulation module and the platform's external interface module. The network terminal digital prototype and the virtual-real hybrid adaptation module run in the virtual-real hybrid test environment simulation module. The digital prototype can interact with the virtual-real hybrid interface adaptation module and the virtual-real hybrid signal processing board through the high-speed bus of the virtual-real hybrid test environment hardware platform. The high-speed bus is such as PCIE, RapidIO, etc., and this embodiment uses PCIE.

[0040] like Figure 2 The diagram shown illustrates the virtual-physical interconnection relationship in an embodiment. In a specific implementation: The network terminal digital prototype and the virtual-real signal processing board are integrated on the same hardware platform, which is a PCIE industrial computer. The digital prototype and the virtual-real signal processing board interact through a high-speed bus interface. The virtual-real signal processing board processes the data sent by the digital prototype, outputs radio frequency signals, and radiates them to the network terminal through an antenna, or receives and processes the radio frequency signals transmitted by the network terminal and sends the output data to the digital prototype. This virtual-physical linkage method is mainly oriented towards time division multiple access protocols. When performing virtual-physical interaction, any virtual node can become a semi-physical node when it needs to interact with the network terminal. The virtual-physical combined signal processing board is used as the physical layer of this node. The semi-physical node communicates with one or more network terminals through multiple antennas connected to the virtual-physical combined signal processing board. In the embodiment, two antennas are used to transmit and receive wireless signals with one or more network terminals through unicast and broadcast channels.

[0041] like Figure 3The diagram illustrates the virtual-to-physical interaction process in this embodiment. In practice: when a virtual node receives application layer service data or generates network maintenance data (which can be either unicast or broadcast), the virtual node forwards the received or generated data to the next layer of the protocol stack. If it's a unicast service, the next-hop node address is confirmed at the link layer. Simultaneously, the node address to which the network terminal will be replaced can be obtained from the virtual-physical integration experimental environment simulation module. When the next-hop node address is determined to be the network terminal, the configuration frame and service data from the link layer to the physical layer are sent to the virtual-physical integration signal processing board through the virtual-physical integration interface adaptation module. Because the system uses time-division multiple access (TDMA) technology, the configuration frame and service data should be sent 1-2 time slots in advance. For broadcast services, the interaction objects inevitably include network terminals. Similarly, the configuration frames and service data sent from the link layer to the physical layer are sent to the virtual-physical interface adaptation module 1-2 time slots in advance to the virtual-physical signal processing board. After receiving the configuration frames and data, the virtual-physical signal processing board sends the data in the corresponding time slot according to the parameters in the configuration frames. In a special case, after receiving network maintenance data with time reference information, the processing board first adjusts its local time according to the synchronization information contained therein and sends the synchronization information to the network terminal. After receiving the service data or network maintenance data, the network terminal passes the data to the upper layer of the protocol stack according to the data type until it is sent to the terminal master control device, or performs network maintenance processing within the network terminal.

[0042] like Figure 4 The diagram illustrates the real-to-virtual interaction process in this embodiment. In practice: In the physical environment, the network terminal receives simulated service data from the terminal master control device or generates network maintenance data itself. The data can be divided into unicast and broadcast services. The network terminal transmits the received or generated data to the lower layer of the protocol stack. According to the time slot table of the simulation environment, the mapping node corresponding to the network terminal sends a configuration frame to the virtual-real combination signal processing board through the virtual-real combination interface adaptation module when it needs to send unicast or broadcast services. The virtual-real combination signal processing board sets the receiving state of the processing board in the corresponding time slot according to the parameters of the configuration frame, and completes the receiving and processing of unicast and broadcast services of the network terminal. The virtual-real combination signal processing board sends the received unicast and broadcast services of the network terminal to the virtual-real combination interface adaptation module, and the virtual-real combination interface adaptation module further forwards them to the destination virtual node or all virtual nodes. After receiving the data, the virtual node transmits the data to the upper layer of the protocol stack according to the data type, until it is sent to the system status monitoring device, or performs network maintenance processing inside the virtual node.

[0043] This embodiment also provides a strong real-time virtual-real linkage method for time division multiple access protocols. The method includes: the system status monitoring device sends a start test command to the virtual-real combined test environment hardware platform; after receiving the start test command, the platform's external interface module starts the virtual-real combined test environment simulation module; and the network terminal digital prototype starts running. The system status monitoring equipment sends simulated business data to the hardware platform of the virtual-real combined test environment. After receiving the business data, the platform's external interface module provides the corresponding network terminal digital prototype to the business data. The network terminal digital prototype generates network maintenance data and transmits it to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network terminal digital prototype judges the received service data; for service data that needs to be transmitted to other network terminal digital prototypes, it transmits the service data to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data, and configuration frames are transmitted to the virtual-real hybrid interface adaptation module of the virtual-real hybrid test environment simulation module. The interface adaptation module transmits service data, network maintenance data, and configuration frames to the corresponding virtual-real combined signal processing board via the virtual-real combined test environment hardware platform. This virtual-real combined signal processing board, according to the configuration frame settings, processes the service data and network maintenance data and then wirelessly radiates them through the antenna in the required time slot. The processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion. The network terminal receives the service data and network maintenance data. For the received network maintenance data, it performs network maintenance processing internally. For the received service data, it sends it to the terminal master control device. The terminal master control device stores the received service data locally and sends it to the system status monitoring device.

[0044] This embodiment also provides an electronic device, including: a memory for storing computer-readable instructions; and a processor for running the computer-readable instructions to execute a strong real-time virtual-real linkage method oriented towards a time-division multiple access protocol.

[0045] This embodiment implements protocol processing through a digital model, generates a physical layer configuration frame consistent with the terminal using a high-precision digital model, and configures a virtual-physical combined signal processing board to achieve signal transmission and reception processing. The combination of the two enables bidirectional interaction between the simulation platform's digital model and the physical networking terminal. This embodiment, considering the characteristics of time-division multiple access technology and millisecond-level time slot length operation, adopts a virtual-physical synchronization method: the simulation platform operates with high-precision timing, the virtual-physical combined signal processing board synchronizes with virtual nodes in the simulation platform, and the networking terminal synchronizes with the virtual-physical combined signal processing board. This achieves stable collaborative operation between the digital model in the simulation platform and the networking terminal. Addressing protocol verification requirements, this embodiment uses system status monitoring to uniformly control the terminal's main control device and virtual nodes, enabling simulation of node network loss and reconnection, and ensuring functional and performance verification of virtual and physical nodes based on a unified network situation.

[0046] This embodiment connects the entire networking terminal to the simulation environment. It uses the digital prototype of the networking terminal and the virtual-real combined signal processing board to realize the transmission and reception of networking protocol and physical layer transmission waveforms, thereby completing the wireless signal interaction with the networking terminal and realizing the signal-level virtual-real combined verification of "using virtual to replace real" and "using experiment to verify virtual". This effectively solves the problem of low-cost, agile and reliable verification of large-scale node networking.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A robust real-time virtual-physical linkage system oriented towards time-division multiple access protocols, characterized in that... include: The system comprises a virtual-real hybrid test environment hardware platform, a virtual-real hybrid test environment simulation module, a platform external interface module, a virtual-real hybrid signal processing board, an antenna, a networking terminal, a terminal main control device, and a system status monitoring device; among which... The system status monitoring device sends a start test command to the virtual-real combined test environment hardware platform. After receiving the start test command, the platform's external interface module starts the virtual-real combined test environment simulation module, and the network terminal digital prototype of the virtual-real combined test environment simulation module begins to run. The system status monitoring device sends simulated business data to the virtual-real combined test environment hardware platform. After receiving the business data, the platform's external interface module provides the corresponding network terminal digital prototype. The network terminal digital prototype generates network maintenance data and transmits it to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network terminal digital prototype judges the received service data; for service data that needs to be transmitted to other network terminal digital prototypes, it passes the service data to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network maintenance data and service data are then processed by the wireless channel simulation module and sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data, and configuration frames are transmitted to the virtual-real hybrid test environment simulation module. The virtual-real interface adaptation module transmits service data, network maintenance data, and configuration frames to the corresponding virtual-real signal processing board via the virtual-real test environment hardware platform. This virtual-real signal processing board, according to the configuration frame settings, processes the service data and network maintenance data and then wirelessly radiates them through the antenna in the required time slot. The network terminal receives the service data and network maintenance data. For the received network maintenance data, it performs network maintenance processing internally. For the received service data, it sends it to the terminal master control device. The terminal master control device stores the received service data locally and sends it to the system status monitoring device.

2. The strongly real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 1, characterized in that: The terminal master control device sends simulated second service data to the corresponding network terminal; the network terminal judges the received second service data, and if the service data needs to be transmitted to other nodes, it is transmitted to the lower layer of the network terminal protocol for processing and wireless transmission, and if the service data is used locally by the network terminal, it is transmitted to the lower layer of the network terminal protocol for local network maintenance processing.

3. The strong real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 2, characterized in that: For secondary service data and network maintenance data that need to be transmitted to other network terminals or digital prototypes of network terminals, they are directly transmitted wirelessly after being processed by the physical layer of the network terminal; the processing includes scrambling, encoding, interleaving, modulation, frequency hopping, and up-conversion.

4. The strong real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 2, characterized in that: For the second service data and network maintenance data that need to be transmitted to the network terminal digital prototype, the network terminal transmits radio frequency (RF) signals for the second service data and network maintenance data. The network terminal digital prototype generates a second configuration frame according to the time slot table and transmits the second configuration frame to the virtual-real interface adaptation module. The virtual-real interface adaptation module sends the second configuration frame to the corresponding virtual-real signal processing board through the virtual-real test environment hardware platform. The virtual-real signal processing board receives the RF signals of the second service data and network maintenance data through the antenna in the required time slot according to the configuration frame settings. The virtual-real signal processing board processes the received RF signals to obtain processed data and transmits the processed data to the virtual-real interface adaptation module through the virtual-real test environment hardware platform. The virtual-real interface adaptation module forwards the processed data to the network terminal digital prototype. The network terminal digital prototype performs network maintenance processing based on the network maintenance data in the received processed data and sends the service data in the processed data to the system status monitoring equipment.

5. The strongly real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 4, characterized in that: The processing includes downconversion, de-hopping, demodulation, deinterleaving, decoding, and descrambling.

6. The strong real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 4, characterized in that: The network terminal has a corresponding digital prototype of the network terminal inside the virtual-real combined test environment simulation module, which is called the mapping node. According to the time slot table, the mapping node generates a configuration frame when it needs to send service or network maintenance data, and passes it to the virtual-real combined interface adaptation module inside the virtual-real combined test environment simulation module.

7. The strong real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 1, characterized in that: The virtual-real combined test environment simulation module includes multiple network terminal digital prototypes, a wireless channel simulation module, and a virtual-real combined interface adaptation module.

8. The strongly real-time virtual-real linkage system oriented towards time-division multiple access protocol according to claim 1, characterized in that: The antenna is used to radiate wireless signals to the network terminal or to receive wireless signals radiated by the network terminal. It is connected to the virtual and real combined signal processing board, and each virtual and real combined processing board is connected to one or more antennas. The virtual-real signal processing board can synchronize time with the network maintenance data sent by the digital prototype of the network terminal. When the virtual-real signal processing board receives network maintenance data with time reference information, it first adjusts its local time according to the time synchronization information contained therein, so as to achieve synchronization between the virtual-real signal processing board and the digital prototype of the network terminal. Then, it sends the synchronization information to the network terminal. After receiving the network maintenance data with time reference information, the network terminal adjusts its local time according to the time synchronization information contained therein, so as to achieve synchronization between the network terminal and the virtual-real signal processing board.

9. A method for strong real-time virtual-physical linkage oriented towards time-division multiple access protocols, characterized in that... include: The system status monitoring equipment sends a start test command to the virtual-real combined test environment hardware platform. After receiving the start test command, the platform's external interface module starts the virtual-real combined test environment simulation module, and the network terminal digital prototype begins to run. The system status monitoring equipment sends simulated business data to the hardware platform of the virtual-real combined test environment. After receiving the business data, the platform's external interface module provides the corresponding network terminal digital prototype to the business data. The network terminal digital prototype generates network maintenance data and transmits it to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network terminal digital prototype judges the received service data; for service data that needs to be transmitted to other network terminal digital prototypes, it transmits the service data to the wireless channel simulation module of the virtual-real hybrid test environment simulation module. The network maintenance data and service data are processed by the wireless channel simulation module and then sent to the corresponding destination network terminal digital prototype. For service data and network maintenance data that need to be transmitted to the network terminal, the service data, network maintenance data, and configuration frames are transmitted to the virtual-real hybrid interface adaptation module of the virtual-real hybrid test environment simulation module. The virtual-real hybrid interface adaptation module sends the service data, network maintenance data, and configuration frames to the corresponding destination virtual-real hybrid signal processing board through the virtual-real hybrid test environment hardware platform. The virtual-real hybrid signal processing board processes the service data and network maintenance data according to the configuration frame settings and then completes wireless radiation through the antenna in the required time slot. The network terminal receives service data and network maintenance data. For the received network maintenance data, it performs network maintenance processing within the network terminal. For the received service data, it sends it to the terminal master control device. The terminal master control device stores the received service data locally and sends it to the system status monitoring device.

10. An electronic device, characterized in that, include: Memory: Used to store computer-readable instructions; and Processor: configured to execute the computer-readable instructions and perform the method as described in claim 9.

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