Performance simulation platform of integrated electronic system 5g hybrid networking
By introducing a 5G communication gateway module into the avionics network, lossless transmission of 5G information in the avionics network was achieved, network compatibility issues were resolved, the size, weight and power consumption of the airborne network were optimized, and a simulation platform for 5G hybrid networking was provided.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing avionics networks suffer from issues related to the size, weight, and power consumption of airborne networks due to wired connections, and there is a lack of simulation and verification tools for 5G hybrid networking.
Design a performance simulation platform for integrated electronic system 5G hybrid networking. By setting up a 5G communication-based gateway module between the 5G communication network module and the avionics AFDX network module, a network conversion protocol is implemented, and message conversion is performed through a frame format conversion unit, a priority type setting unit, and an address conversion unit.
Lossless transmission of 5G information in the avionics AFDX network was achieved, network compatibility issues were resolved, and the size, weight, and power consumption of the airborne network were optimized through a simulation platform.
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Figure CN116567685B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of avionics system communication networks, and more specifically, refers to the design of a simulation platform for performance analysis and verification of an in-flight 5G hybrid networking architecture. Background Technology
[0002] With the introduction of the Distributed Integrated Modular Avionics (DIMA) architecture concept in the field of avionics, as exemplified by the article "Analysis and Development Prospect of Integrated Modular Avionics System Standards" in the December 2010 issue of *Avionics Technology* (Volume 41, Issue 4), authored by Zhu Xiaofei and Huang Yongkui, various avionics systems have been disclosed. The integration of avionics systems has significantly increased, with more frequent data exchange between subsystems. The degree of integration of avionics systems determines the performance and development level of aircraft. To date, the technology has evolved from discrete, integrated, and highly integrated systems. The next generation of avionics systems is evolving towards deep integration, and its complexity is constantly increasing with growing demands. Currently, avionics networks primarily based on wired connections, such as Avionics Full Duplex Switched Ethernet (AFDX) and Time Triggered Ethernet (TTE), face challenges related to excessive cable weight, high wiring costs, and maintenance difficulties caused by wired connections that are almost ubiquitous throughout the platform.
[0003] Over the past two decades, wireless communication has experienced rapid development. The increasingly mature wireless communication technologies are gaining attention in the avionics field. The enhanced mobile broadband, ultra-reliable, and low-latency communication characteristics of 5G (5th generation mobile networks) will provide crucial technical support for the Internet of Things (IoT). 5G-based IoT will significantly improve the quality and operational efficiency of various industries. The industry has gradually begun research into more flexible in-flight networking.
[0004] The increasingly redundant network architectures in current mainstream airborne networks have made the size, weight, and power consumption (SWaP) issues of airborne networks a pressing problem to be solved. The maturity of 5G technology has made 5G hybrid networking technology for airborne networks a hot research topic. By introducing 5G wireless technology into airborne networks and leveraging its flexible, wireless characteristics, the SWaP problem in airborne networks can be solved.
[0005] Currently, research on 5G hybrid networking is still mainly in the theoretical demonstration stage, focusing on network topology design and network performance analysis, rather than providing an overall intuitive visualization of network performance. There is a lack of automated tools for simulation and verification of 5G hybrid networking. Summary of the Invention
[0006] To address the incompatibility of existing avionics network simulation platforms with 5G network simulation, this invention designs a performance simulation platform for integrated electronic systems using 5G hybrid networking. This simulation platform establishes a 5G-based gateway module between the 5G communication network module and the avionics AFDX network module. This 5G-based gateway module implements the network conversion protocol between the 5G communication network module and the avionics AFDX network module. Firstly, it allows lossless transmission of 5G information within the avionics AFDX network. Secondly, it can restore avionics information to 5G network information based on the avionics AFDX network topology, thus resolving the incompatibility issue between the two networks. Thirdly, it provides a simulation platform to address the excessive size, weight, and power consumption of airborne networks caused by wired cables in the avionics AFDX network.
[0007] The 5G-based gateway module consists of a frame format conversion unit (10), a priority type setting unit (20), an address conversion unit (30), and an AFDX network message analysis module (40).
[0008] The 5G network messages undergo protocol conversion within the 5G-based gateway module to achieve lossless transmission of 5G information within the AFDX avionics network; for arriving messages, message type determination is required.
[0009] (a) If it is a 5G message, follow these steps:
[0010] The 5G message is parsed to extract the core frame length, frame transmission time, data type, and necessary AFDX message; the frame format is converted according to the corresponding rules of the 5G communication protocol.
[0011] Set different priority types for 5G messages corresponding to vlid messages;
[0012] In the 5G communication protocol, the corresponding IP address for the virtual ID and destination will be converted to the end system.
[0013] (ii) If it is an AFDX message, perform the following steps:
[0014] The AFDX message is parsed, including the core frame length, frame transmission time, data type, and necessary 5G messages. The frame format is converted according to the corresponding rules, triggering the transmission of 5G messages.
[0015] Set different priority types for the vlid messages corresponding to AFDX messages;
[0016] In the AFDX communication protocol, the corresponding end system is converted into an IP address for the vlid and destination.
[0017] In this invention, the method for constructing a performance simulation platform for a 5G hybrid network of an integrated electronic system based on discrete event triggering includes the steps of configuring the network according to AFDX network requirements and dividing the configured network topology into network subnets and configuring message routing.
[0018] Step 1-1: Number of switches, number of end systems, number of base stations, and number of user nodes required to establish an AFDX network.
[0019] Steps 1-2: Place all switches, base stations, user nodes, and gateways declared in Step 1-1 according to the designed network architecture. The actual physical connections need to be considered; this can be done by modifying configuration files.
[0020] Step 2-1: Subnetting needs to be modified through the ini file. Reasonable subnetting can ensure the correct implementation of network analysis calculation. The final effect is achieved by modifying the subnetting parameters in the simulation input and output files, thereby judging the network partitioning.
[0021] Step 2-2: By modifying the attributes of the message sending and receiving application in the simulation input and output files, the configured message attributes are obtained, which are the real traffic taking effect in the network;
[0022] Steps 2-3: Network routing configuration. By modifying the network routing configuration parameters of the switch and gateway in the input and output files, the configured message routing takes effect, thereby enabling real link forwarding.
[0023] The advantages of this invention are:
[0024] In the process of network design, this invention designs the 5G network and the avionics network separately, thereby ensuring the independence of the two networks and retaining the core functions of both networks, thus realizing a complete 5G avionics network wired / wireless hybrid networking simulation system.
[0025] In the design process of this invention, the gateway node is used as the core node for 5G network access to avionics network. The gateway node design enables lossless conversion between the two network messages, thereby solving the problem that avionics network is incompatible with 5G messages and ensuring the reliability of avionics network in the process of achieving network compatibility.
[0026] This invention considers message transmission and information statistics in an airborne hybrid networking architecture. It achieves data collection of 5G and AFDX messages between end systems for messages in different scenarios. Message statistics are implemented according to simulation theory, thereby increasing the accuracy of the statistical results. Attached Figure Description
[0027] Figure 1 This is a structural block diagram of the performance simulation platform for integrated electronic system 5G hybrid networking of the present invention.
[0028] Figure 2 This is a diagram of the AFDX network topology for avionics.
[0029] Figure 3 This is a diagram of the internal architecture of the terminal system.
[0030] Figure 4 This is a diagram of the internal architecture of the switch.
[0031] Figure 4A It is the internal message routing diagram of the switch.
[0032] Figure 5 It is a lossless conversion between two types of network messages in the gateway.
[0033] Figure 6 It is the user equipment (UE) part according to the TCP / IP network architecture diagram.
[0034] Figure 6A This is a diagram of the internal protocol framework of the lowest-level cellularNic module.
[0035] Figure 7 This is the overall architecture diagram of the celularNic module. Detailed Implementation
[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0037] See Figure 1 As shown, this invention designs a performance simulation platform for integrated electronic systems using 5G hybrid networking. The simulation platform establishes a 5G-based gateway module between the 5G communication network module and the avionics AFDX network module. This 5G-based gateway module comprises a frame format conversion unit 10, a priority type setting unit 20, an address translation unit 30, and an AFDX network message analysis module 40. The 5G-based gateway module transmits 5G protocol information 1 within the avionics AFDX network module and simultaneously restores the AFDX protocol information 2 from the avionics AFDX network module to 5G network information.
[0038] In traditional avionics AFDX networks, the core architecture mainly consists of switches (SC) and end systems (SM). The total number of switches is denoted as W, the number of ports on each switch is denoted as S, and the total number of connected end systems is denoted as H. In this invention, each switch and end system in the avionics AFDX network topology is also referred to as a node. The network topology diagram disclosed on page 32 of the SAEAS 6802 protocol manual (2016) can be used as a reference.
[0039] For example, any switch is labeled SC i In the SC switch i The number of ports on the device is denoted as The total number of connected end systems is denoted as This indicates that it belongs to switch SC. i Any port on it. This indicates that it belongs to switch SC. i Any one end of the system.
[0040] In addition, due to the need to introduce 5G wireless network access, a 5G-based gateway module needs to be set up in the simulation platform of this invention for message conversion between the two networks, using ExchangeModule_SC. i This indicates that the introduction of base stations by wireless devices is represented by GnB_SC. i In addition, considering the authenticity of the current protocols in 5G networks, the architecture of the core network, such as UPF, Router, and Server, is simulated in the simulation platform of this invention.
[0041] In the AFDX network topology, different end system nodes have different levels due to the different importance of the tasks they carry. Therefore, this invention specifies that the messages of the end system will have priority attributes, which can be achieved by setting the Priority attribute of the message. The larger the attribute value, the higher the priority. When the message queue length is greater than 1, the message with the highest priority in the queue will be processed first.
[0042] In this invention, messages between end system nodes are represented using VL (Version Level), and the message length, destination node, priority, inter-frame interval, transmission period, message ID, and message type can be configured to achieve the final simulation objective. Changing the core network content requires modifying the source code, while modifying the connection relationships between different devices within and outside the network requires modifying the ned network file. Modifying the simulation configuration requires modifying the simulation file, i.e., the ini file.
[0043] In this invention, a performance simulation platform for integrated electronic system 5G hybrid networking is constructed, and the specific configuration includes the following steps:
[0044] Step 1: Design the required network topology architecture;
[0045] Step 11: Design the AFDX network topology architecture according to requirements;
[0046] (A): It is necessary to design the network connection relationship between different switches (SC).
[0047] (B): It is necessary to design any switch SC i number of ports and the end systems connected to it.
[0048] (C): It is necessary to design the message configuration between all end systems in the AFDX network topology architecture. Messages can be imported through XML configuration or directly configured in the INI file.
[0049] Step 12, Design the protocol address;
[0050] After step 11, the actual physical location needs to be considered so that different switches (SC) and end systems (SM) can be placed. This is done by modifying the network file AFDX5GNR.ned, with the main modifications being the following five modules: gNodeB, NRUe, exchangeModule, SimpleNode, and Switch, which correspond to the 5G base station, wireless connection end system, gateway, wired connection end system, and core routing switch, respectively.
[0051] In this invention, the position is modified by changing the @display parameter, and the connection relationship is modified by changing connections, thereby ensuring that the AFDX network topology conforms to the real scenario and obtains real data.
[0052] Step 2: Subnet the network;
[0053] This invention takes into account the need for subnetting in wireless networking technology to prevent crosstalk between messages from different networks. Therefore, it requires power settings and network area division for different networks. The steps are as follows:
[0054] Step 21: Based on the actual hybrid network topology design requirements, different wireless connection systems need to be configured to different base stations. This configuration is achieved through the ue's masterId, nrMasterId, macNodeId, and macCellId. By configuring the same ID number as the base station, they can be matched to the same subnet.
[0055] Step 22: By configuring subnets, different areas within the AFDX network module can be divided, thus conforming to the isolation function of the metal compartment in the AFDX network environment. Due to the presence of the enclosed metal compartment, wireless routing messages cannot communicate across domains. Therefore, a metal compartment constitutes a closed subnet. Subnets can communicate with each other through routing exchanges.
[0056] Step 3: Message routing configuration;
[0057] Since this invention was designed from the outset to use messages as the basic unit and to perform statistical analysis on various information within those messages, it is necessary to configure the messages in the network based on the existing message base in order to conduct further statistical analysis.
[0058] Message routing configuration is mainly adapted in the following two places, since the end system is divided into wireless connection end system and wired connection end system. The configurations of the wired connection end system and the wireless connection end system are shown in Table 1 and Table 2 below.
[0059] Table 1 Message Configuration for Wired Terminal System
[0060] End system configuration name Corresponding explanation numRCSApps Number of system messages at wired connection end rcSFlow[j].vlID message ID (j) rcSFlow[j].packetLength Length of message j rcSFlow[j].priority Priority of message j rcSFlow[j].rcBAG The j-th message's bag interval rcSFlow[j].serviceRate The j-th message sending cycle
[0061] Table 2 Wireless System Message Configuration
[0062] End system configuration name Corresponding meaning numApps Number of messages sent by the wireless system app[k].PacketSize Length of the kth message packet app[k].destAddress Destination address of message k app[k].typename Message type of message k (received / sent) app[k].localPort The kth message on the local port app[k].destPort The destination port of the kth message
[0063] After configuring the good news, all messages will take effect in the next simulation. Rerunning the simulation will collect statistics for all messages.
[0064] Step 4: Network routing configuration;
[0065] After configuring the messaging system, routing information still needs to be configured on the core routers to ensure that messages can be correctly routed between routers. Specifically:
[0066] Routing messages can be implemented by modifying rcVLList, where “{101,[1,(0)],1000,0.5}” means that the message configured with vlid 101 is forwarded once (without copying) to port 0, Bag is 1000, and offset is 0.5.
[0067] The main function of esVLList is to implement message routing configuration for gateway modules based on 5G communication, and to retrieve the next message to arrive at the gateway node based on key-value pair settings.
[0068] The main function of VoipIDAndPortList is to implement the routing and forwarding strategy of the internal receiver of Gnb, while vlUeList can implement the cell message acknowledgment strategy of the base station. It can eliminate interference from external messages by registering message IDs inside the base station.
[0069] Through steps one through four, a 5G communication-based gateway module is constructed. The simulation file obtained by running the 5G communication-based gateway module in the avionics AFDX network is denoted as the Result file. In subsequent runs of the 5G communication-based gateway module, the performance simulation of the integrated electronic system's 5G hybrid networking is achieved by opening the ".sca" and ".vec" files in the Result folder.
[0070] Example 1
[0071] AFDX network topology
[0072] Select the SAEAS 6802 protocol manual (2016, page 32, published diagram), such as... Figure 2 As shown, Figure 2 This illustrates an example of a time-triggered Ethernet network. It consists of six terminal systems (101–106) and three switches (201–203), with the terminal systems connected to switch 110 via bidirectional communication links. Similarly, the switches are interconnected via bidirectional communication links 110. All bidirectional communication links 110 are standard Ethernet connections. All terminal systems are configured as synchronization masters; only switch 203 is configured as a compressed master. Therefore, switches 201 and 202 are configured as synchronization clients.
[0073] End system
[0074] The main functions implemented by the intermediate system include: sending and receiving AFDX messages, redundancy detection, buffer queue, and routing forwarding.
[0075] AFDX message sending and receiving mainly includes message generation and configuration, and message statistics; redundancy detection is mainly responsible for the dual redundancy architecture of AFDX, so as to realize message replication and statistical sending and receiving under the dual redundancy of AFDX messages; the main function of the buffer queue is to buffer the message queue, and to implement the priority queue by calling messages of different priorities. In addition, it can also limit message redundancy and exclude sudden message queues by limiting the maximum queue time.
[0076] The internal architecture of the intermediate system is as follows: Figure 3 As shown, flowApp is used to send and receive AFDX frame messages. The sending module needs to generate data packets according to the BAG interval of the message, and the frame length is the input data.
[0077] switch
[0078] The main components of a switch (such as Figure 4 As shown, the implementation mainly consists of ports and internal switching and routing modules. For ease of subsequent research and analysis, the ports are further divided into routing ports between the switch and ports between the switch and the gateway. Internally, the ports primarily serve as message buffers and message distribution mechanisms. For example... Figure 4A The switching and routing module is the core module for message conversion and routing. Within this module, network configuration is injected, and network routing configuration messages are automatically parsed to ensure that messages are copied and forwarded to the correct ports, thereby guaranteeing the correct routing strategy for messages within the core network.
[0079] 5G communication-based gateway
[0080] The gateway's primary function is to enable lossless conversion between two types of network messages, specifically seamless conversion between 5G wireless messages and AFDX messages. This conversion process ensures no loss of statistics, message information, etc., thereby achieving lossless conversion and transmission. Key components include... Figure 5 As shown.
[0081] 5G communication
[0082] 5G networking is mainly divided into access network, bearer network, and core network. This framework primarily involves the access network and core network, simulating the NR (New Radio) characteristics of 5G and the data plane content of the access network and core network. Key elements include NrUe (User Equipment) with NR characteristics and gNodeB (NR Base Station). These two core devices will be used as entry points to demonstrate how to simulate 5G modules.
[0083] User Equipment (UE)
[0084] The User Equipment (UE) portion implements all protocol layers from the physical layer to the application layer, including TCP / IP, IP, and other protocols and their upper-layer applications, according to the TCP / IP network architecture. Its implementation architecture diagram is shown below. Figure 6 As shown.
[0085] exist Figure 6From top to bottom, the module consists of the application layer message sending and receiving modules. The application layer mainly implements the sending and receiving of different types of messages. In order to achieve message reusability, this module was designed from the beginning to realize the reuse between modules through interfaces. The core functions of different application modules are abstracted through interfaces, and the development of different modules is implemented on top of the interfaces. This development method increases code reuse, reduces redundant code, and improves code readability.
[0086] The transport layer primarily implements the UDP / TCP modules, which mainly implement the byte stream transmission protocol between two applications. TCP can achieve reliable and ordered transmission; while UDP, although unreliable, has a faster transmission rate, avoids the complex protocols during transmission establishment and interruption, and is more lightweight. With the current network's basic redundancy capabilities, it can basically guarantee reliable transmission.
[0087] The IPv4 module in the network layer mainly implements the IPv4 protocol suite. All upper transport layer packets, such as UDP, TCP, and ICMP, need to be encapsulated into IP headers and further transmitted down the network by the IP layer. By encapsulating a unique IP address in the network, the transmission of data packets in the network can be realized.
[0088] The lowest-level cellular NR module is the core 5G NR functional module, and its internal protocol framework is as follows: Figure 6A As shown. From top to bottom, the sequence is IP2NIC->PDCP->RIC->MAC->PHY. Because it is necessary to retain two 5G deployment modes, namely SA (standalone) and ENDC (E-UTRA / NR Dual Connectivity), it is divided into one link with NR and the original LTE link.
[0089] The primary function of IP2NIC is to convert the upper-layer IP protocol to the lower-layer NIC module message format. The PDCP layer's main role is to perform header compression along the transmission path and allocate / create Connection Identifiers (CIDs) for data packets. The created CID and UEID key-value pairs are unique across the entire network, thus enabling message identification. In addition, it parses or encapsulates the message's LCID (Logical Connection Identifier). Specifically, it encapsulates the LCID field in upper-layer IP data and sends the encapsulated message; it decompresses the PDCP field in lower-layer data and sends the parsed data back to the upper layer.
[0090] The primary function of the RLC layer is to implement a transmission buffer, which can be configured to three modes: transparent transmission, acknowledged transmission, and unacknowledged transmission. Its main purpose is to ensure that regardless of the data combination being transmitted, it guarantees correct transmission on the link, thus ensuring transparent transmission at the data link layer.
[0091] The MAC layer primarily handles time slot allocation. It controls factors such as time slot duration and the number of sub-slots through parameter settings. The parameter settings are shown in the table below:
[0092] Time slot 0 1 2 3 4 TTI duration 1 0.5 0.25 0.125 0.0625 Number of TTIs in subframe 1 2 4 8 16
[0093] In addition, frequency division multiplexing (FDD) and time division multiplexing (TDD) can be implemented through the design of the MAC layer, thereby achieving multiplexing. This effect can be achieved simply by setting different time slot configurations.
[0094] The lowest layer, the PHY layer, is the physical link layer. This layer primarily implements channel functions, mainly calculating the signal-to-noise ratio (SNR). n o n is the power of the interference source. g Let P be the Gaussian noise power, and P be the signal power.
[0095] In addition, at this layer, the packet error rate (BLER) curve can be used to convert the probability of correctly receiving RB (Resource Block) through the bit error rate curve obtained from the standard 3GPP document. In other words, it can simulate the bit error rate that has been measured in the real 5G protocol.
[0096] GnodeB
[0097] GnodeB evolved from the LTE base station EnodeB, incorporating NR to support new 5G features. Its core implementation is similar to the UE module, with the core 5G module primarily implemented in the celularNic module. The overall architecture of the celularNic module is as follows: Figure 7 As shown.
[0098] Compared to the UE, in this module, pppMEHostlf and ppplf mainly implement communication between base stations, while appRece connects to the subsequent gateway through application layer protocols to achieve compatibility and access between the two networks. The implementation mechanisms of other modules are similar to those of the UE.
[0099] The overall 5G core architecture was achieved through the UE and GnodeB modules.
[0100] The performance simulation platform for the integrated electronic system 5G hybrid networking constructed above mainly functions through the gateway module based on 5G communication to convert between 5G messages and AFDX messages; this involves frame format conversion, priority conversion, and address conversion.
[0101] The message type needs to be determined for incoming messages;
[0102] (a) If it is a 5G message, follow these steps:
[0103] The 5G message is parsed to extract the core frame length, frame transmission time, data type, and necessary AFDX messages. Frame format conversion is then performed according to the 5G communication protocol.
[0104] Set different priority types for 5G messages corresponding to vlid messages.
[0105] In the 5G communication protocol, the corresponding IP address for the virtual ID and destination will be converted to the end system.
[0106] (ii) If it is an AFDX message, perform the following steps:
[0107] The AFDX message is parsed, including the core frame length, frame transmission time, data type, and necessary 5G messages. Frame format conversion is performed according to the corresponding rules, triggering the transmission of 5G messages.
[0108] Set different priority types for the vlid messages corresponding to AFDX messages.
[0109] In the AFDX communication protocol, the corresponding end system is converted into an IP address for the vlid and destination.
Claims
1. A performance simulation platform for integrated electronic systems using 5G hybrid networking, comprising a 5G communication network module and an avionics AFDX network module; characterized in that: It also includes a gateway module based on 5G communication; The 5G-based gateway module consists of a frame format conversion unit (10), a priority type setting unit (20), an address conversion unit (30), and an AFDX network message analysis module (40). The 5G-based gateway module is used to implement the network conversion protocol between the 5G communication network module and the avionics AFDX network module. The 5G network messages undergo protocol conversion within the 5G-based gateway module to achieve lossless transmission of 5G information within the AFDX avionics network; for arriving messages, message type determination is required. (a) If it is a 5G message, follow these steps: The 5G message is parsed to extract the core frame length, frame transmission time, data type, and necessary AFDX message; the frame format is converted according to the corresponding rules of the 5G communication protocol. Set different priority types for 5G messages corresponding to vlid messages; In the 5G communication protocol, the corresponding IP address for the virtual ID and destination will be converted to the end system. (ii) If it is an AFDX message, perform the following steps: The AFDX message is parsed, including the core frame length, frame transmission time, data type, and necessary 5G messages. The frame format is converted according to the corresponding rules, triggering the transmission of 5G messages. Set different priority types for the vlid messages corresponding to AFDX messages; In the AFDX communication protocol, the corresponding end system is converted into an IP address for the vlid and destination. The gateway module based on 5G communication is used to simulate the user equipment (UE) and base station gNodeB in the NR characteristics of 5G. The UE portion implements all protocol layers from the physical layer to the application layer according to the TCP / IP network architecture; from top to bottom, they are: The application layer implements the sending and receiving of different types of messages; The transport layer implements the byte stream transmission protocol between the two applications; The network layer implements the IPv4 protocol suite, which is used to transmit data packets in the network. The lowest level implements the deployment of one link with NR and the original LTE link.
2. According to the gateway module based on 5G communication in claim 1, the specific configuration for constructing a performance simulation platform for integrated electronic system 5G hybrid networking includes the following steps: Step 1: Design the required network topology architecture; Step 2: Subnet the network; Step 3: Message routing configuration; Step 4: Network routing configuration; Its features are: In step 11 of step one, a network is established based on the number of switches in the AFDX network topology and the number of end systems connected to each switch; and message configuration between end systems is configured, with message import via XML configuration or directly configured in the INI file. Step 12, Design the protocol address; After completing step 11, the actual physical location needs to be considered so that different switches and end systems can be placed. This is done by modifying the network file AFDX5GNR.ned, with the main modifications being the following 5 modules: gNodeB, NRUe, exchangeModule, SimpleNode, and Switch, which correspond to 5G base station, wireless connection end system, gateway, wired connection end system, and core routing switch, respectively. In step 21 of step two, the configuration takes effect through the masterId, nrMasterId, macNodeId, and macCellId of the ue; it matches the same subnet by configuring the same ID number as the base station. Step 22: By configuring subnets, different areas in the AFDX network module are divided to meet the isolation function of the metal compartment in the AFDX network environment. Due to the existence of the enclosed metal compartment, wireless routing messages cannot communicate across domains; therefore, a metal compartment is a closed subnet; subnets communicate with each other through routing exchange. In step three, the message routing configuration includes both wireless and wired connection systems; The wired terminal system message configuration includes numRCSApps, rcSFlow[j].vlID, rcSFlow[j].packetLength, rcSFlow[j].priority, rcSFlow[j].rcBAG, and rcSFlow[j].serviceRate; The wireless system message configuration includes numApps, app[k].PacketSize, app[k].destAddress, app[k].typename, app[k].localPort, and app[k].destPort; After configuring the messages, routing information still needs to be configured on the core routers to ensure correct message routing between routers: Where: Routing messages are implemented by modifying rcVLList; The message routing configuration of the gateway module based on 5G communication is implemented through esVLList; VoipIDAndPortList is used for routing and forwarding strategies for internal receivers in Gnb; The simulation file obtained by running the 5G communication-based gateway module in the avionics AFDX network is denoted as the Result file. The performance simulation of the integrated electronic system 5G hybrid networking is achieved by opening the ".sca" and ".vec" files in the Result folder the next time the 5G communication-based gateway module is run.
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