Multi-mode vehicle-mounted radio station, service processing method and device

Abstract

The invention relates to the technical field of railway wireless train dispatching communication, and provides a multimode vehicle-mounted radio station and a service processing method and device, and the method comprises the steps: receiving service demand information from vehicle-mounted equipment and network injection success information from each communication module; determining a service ID corresponding to a service attribute identifier, a service communication model identifier and a service priority identifier carried in the service demand information by using a corresponding relationship between the service attribute, the service communication model and the service priority and the service ID; searching a communication module corresponding to the determined service ID by using a corresponding relationship between the service ID and the communication module; selecting a communication module from the found communication modules based on the received network injection success message; and sending the service demand information to the selected communication module. The service demand information is controlled and transmitted in a classified manner by using the corresponding relationship between the service ID and the communication module, five spectrum resources such as GSM-R, communication satellites, LTE-R, 5G-R and public networks can be fully utilized, and more efficient data transmission is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway wireless train dispatching communication, and in particular relates to a multi-mode vehicle-mounted radio station, a service processing method and a device. Background Art

[0002] Currently, the most widely used technology in my country's high-speed railways is GSM-R (Global System for Mobile Communications-Railway), which is a data-based mobile wireless communication radio technology developed specifically for railways based on the mature and universal public mobile wireless communication system GSM platform.

[0003] In the existing GSM-R / 450MHz railway integrated wireless communication system, Cab Integrated Radio communication equipment (CIR) is an upgraded equipment of the locomotive radio of the railway wireless train dispatching communication system. It is a comprehensive on-board communication equipment developed based on GSM-R digital mobile communication technology, GPS global positioning technology, 450MHz analog radio station communication technology, etc., including voice, data and other services, mainly used in passenger dedicated lines or high-speed railways. CIR has two working modes, GSM-R and 450MHz, and completes train dispatching communication, train number transmission, dispatching command transmission, and tail wind pressure information transmission in both modes. In the GSM-R mode, the available data interface can transmit the data transmission function that may be expanded in the future of the locomotive, with extremely strong functional extensibility. In addition, the tail radio system is also included to ensure the normal monitoring and operation of the tail of the train.

[0004] As a vehicle-mounted terminal device, CIR vehicle-mounted radio establishes a wireless transmission channel with the ground base station to provide secure communication services for the train control data between the vehicle and the ground. However, with the development of domestic and foreign communication technologies and the growing business needs of rail transit, CIR vehicle-mounted radio faces the problem of low data rate, difficulty in developing various new businesses on the existing CIR vehicle-mounted radio, and the existing GSM-R network capacity can no longer meet the development needs of the future railway industry.

[0005] In the future, rail transit will face the coexistence of multiple wireless communication systems, and on-board wireless communication equipment requires the deployment of multiple sets of radio stations of different standards. This will lead to problems such as duplicate equipment construction, waste of bandwidth resources, and low utilization of spectrum resources during network construction. Summary of the invention

[0006] To solve the above problems, the present disclosure provides a multi-mode vehicle-mounted radio and a service processing method, which adopts the correspondence between service attributes and communication modules to classify, control and transmit service demand information, thereby improving the utilization efficiency of spectrum resources.

[0007] In a first aspect, a multi-mode vehicle-mounted radio is provided, comprising: an interface module, a core processing module, a wireless communication module, a radio frequency module and a power supply module; wherein: The core processing module includes: a core processor; the core processor is used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module through the interface module; determine the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the corresponding relationship between the service attribute, service communication model and service priority and the service ID; search for the communication module corresponding to the determined service ID by using the corresponding relationship between the service ID and the communication module; select a communication module from the communication modules found based on the received network injection success message; and send the service demand information to the selected communication module; The wireless communication module is connected to the core processing module through the interface module, including: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-orbit communication satellite communication module and a public network communication module; each communication module is used to register the corresponding network, send a network registration success message to the core processing module, and send service demand information to the radio frequency module; The radio frequency module is used to modulate the service demand information onto a radio frequency signal and send the radio frequency signal through an antenna; The power supply module is used to provide power to each module.

[0008] Furthermore, the business ID includes: AF, where A corresponds to railway emergency calls, driving-related dispatching, driving information, and driving safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarm, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data.

[0009] Furthermore, services A and B correspond to low-orbit communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, and 5G-R communication modules; Services C, D and E correspond to public network modules first, and also correspond to low-orbit communication satellite communication modules; Business F corresponds to low-orbit communication satellite communication modules and 5G-R communication modules.

[0010] Furthermore, the radio frequency module includes: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components and 1 combiner / distributor and antenna; The core processing module is further used to output a control signal to the radio frequency module to switch the transceiver status of the first transceiver switching component and the second transceiver switching component; The radio frequency module is specifically used to, under the control of a control signal, respectively via a first transceiver switching component, a PA, a second transceiver switching component, a combiner / distributor and an antenna, power amplify and combine wireless signals received from a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-orbit communication satellite communication module and a public network communication module, and transmit them through an antenna; and respectively via an antenna, a combiner / distributor, a second transceiver switching component, an LNA and a first transceiver switching component, distribute and gain compensate the received wireless signals and send them to corresponding communication modules.

[0011] Furthermore, the core processor is also used to receive heartbeat messages from each communication module through the channels between the communication modules; and determine the corresponding relationship between the channel and the communication module using the communication network standard identifier carried in the heartbeat message.

[0012] Furthermore, the power module is specifically used to independently supply power to each communication module; The core processor is also used to realize cold restart of a communication module by controlling the power module when it is determined that a communication module is frozen.

[0013] Furthermore, it also includes: a communication exchange module connected to the core processor; the interface module also includes an Ethernet interface unit connected to the extended service transmission device; The communication exchange module includes: an Ethernet exchange chip; the Ethernet exchange chip is used for routing and forwarding various business data.

[0014] Furthermore, it also includes: a Trace tracker connected to the core processor; The core processor is also used to track events in the log through the Trace tracker when a communication failure occurs, identify the fault point and cause of the failure, and generate a fault information record and a diagnostic report; The Ethernet switching chip is also used for log recording, real-time monitoring of the operating status of the GSM-R / LTE-R / 5G-R / low-orbit communication satellite communication module, and storage of the logs of each communication module, recording the transmission path of the data packet in the network, determining the source, destination and nodes passed by the data packet; and monitoring and recording equipment fault information at the same time.

[0015] In a second aspect, a business processing method is provided, including: Receive business demand information from vehicle-mounted equipment and network registration success messages from each communication module; By using the correspondence between the service attribute, service communication model, service priority and service ID, the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information is determined; Using the correspondence between the service ID and the communication module, find the communication module corresponding to the determined service ID, where the communication module includes: low-orbit communication satellite communication module, GSM-R communication module, LTE-R communication module, 5G-R communication module and public network communication module; Selecting a communication module from the communication modules found based on the received network injection success message; Send business demand information to the selected communication module.

[0016] In a third aspect, a service processing device is provided, comprising: a receiving unit, a service ID determining unit, a communication module determining unit, a selecting unit and a sending unit, wherein: A receiving unit, used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module; A service ID determination unit, configured to determine a service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the correspondence between the service attribute, service communication model and service priority and the service ID; A communication module determination unit, used to use the correspondence between the service ID and the communication module to find the communication module corresponding to the determined service ID, wherein the communication module includes: a low-orbit communication satellite communication module, a GSM-R communication module, a LTE-R communication module, a 5G-R communication module and a public network communication module; A selection unit, configured to select a communication module from the found communication modules based on the received network injection success message; The sending unit is used to send the service demand information to the selected communication module.

[0017] Compared with the prior art, the present invention has the following advantages: 1. Efficient use of spectrum resources: By using the correspondence between service IDs and communication modules, the service demand information is classified, controlled and transmitted, and the spectrum resources of five communication technologies, including GSM-R, low-orbit communication satellites, LTE-R, 5G-R, and public networks, can be fully utilized to achieve more efficient data transmission; 2. Enhanced system compatibility: GSM-R / LTE-R / 5G-R / low-orbit communication satellite communication modules can be uniformly accessed using the original hardware solution without modifying the original connection with ATP equipment, and are compatible with a variety of railway system services such as voice services, data transmission services, and monitoring services. 3. Enhanced system scalability: Supports multi-standard wireless communication transmission of LTE-R radio / 5G-R radio / GSM-R radio / satellite radio, selects safe and reliable channels for data transmission with ground equipment according to business needs, realizes train control data and other business data, such as signal authorization, line data, temporary speed limit information, MA information, ATO plan data, etc., which can improve the reliability of wireless transmission data.

[0018] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. The purpose and other advantages of the present disclosure can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a wireless communication system structure diagram including a multi-mode vehicle-mounted radio station according to an embodiment of the present disclosure is shown; Figure 2 A schematic diagram of the hardware structure of a multi-mode radio station device according to an embodiment of the present disclosure is shown; Figure 3 A schematic diagram of the hardware structure of another multi-mode radio station device according to an embodiment of the present disclosure is shown; Figure 4 A radio frequency structure diagram of a GSM-R / LTE-R / 5G-R / satellite multi-standard communication device according to an embodiment of the present disclosure is shown; Figure 5 A schematic diagram of a service processing method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] Figure 1A schematic diagram of a wireless communication system structure including a multi-mode vehicle-mounted radio station according to an embodiment of the present disclosure is shown. Figure 1 The GSM-R / LTE-R / 5G-R / communication satellite radio is a multi-mode vehicle radio. The multi-mode vehicle radio supports GSM-R / LTE-R / 5G-R / satellite communication, is a vehicle-mounted wireless access terminal device, and is an important device on the wireless side of the train control system. The multi-mode vehicle radio can intelligently identify and connect to GSM-R, LTE-R, 5G-R and satellite communication networks. When the train is traveling in an area covered by the GSM-R network, the multi-mode vehicle radio will automatically connect to the GSM-R network, and transmit train control business data with the vehicle-mounted equipment host in the train control system through the interface, and communicate with the base station through the Um air interface. Similarly, when the train enters the LTE-R, 5G-R or communication satellite network coverage area, the multi-mode vehicle radio will automatically switch to the corresponding network, and transmit train control business data with the vehicle-mounted equipment host in the train control system through the interface, and communicate with the base station through the corresponding Uu air interface.

[0023] Figure 2 The schematic diagram of the hardware structure of the multi-mode vehicle-mounted radio according to the embodiment of the present disclosure includes: an interface module, a core processing module, a wireless communication module, a radio frequency module and a power module; The core processing module includes: a core processor; the core processor is used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module through the interface module; determine the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the corresponding relationship between the service attribute, service communication model and service priority and the service ID; search for the communication module corresponding to the determined service ID by using the corresponding relationship between the service ID and the communication module; select a communication module from the communication modules found based on the received network injection success message; and send the service demand information to the selected communication module; The wireless communication module is connected to the core processing module through the interface module, including: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-orbit communication satellite communication module and a public network communication module; each communication module is used to register the corresponding network, send a network registration success message to the core processing module, and send service demand information to the radio frequency module; The radio frequency module is used to modulate the service demand information onto a radio frequency signal and send the radio frequency signal through an antenna; The power supply module is used to convert the input voltage into the voltage required by the module to provide power for each module.

[0024] The above-mentioned core processing module is the main core computing part of the multi-mode vehicle radio. It automatically identifies the ability to connect to GSM-R, LTE-R, 5G-R, and low-orbit communication satellite networks based on the service ID.

[0025] The interface module includes: an interface unit for connecting with the vehicle-mounted ATP device and an interface unit for connecting with each communication module; The wireless communication module supports 2G / 4G / 5G / satellite communication capabilities and can be connected to the core processing module using a standard MiniPCIe interface.

[0026] Specifically, the power module adopts DC power supply input from the backplane, and the first stage of voltage reduction converts the input voltage into the voltage required by the module, wherein the core power supply is divided into three parts: system power supply, wireless communication module power supply, and other peripheral power supply. The second stage of voltage reduction converts the module voltage into the voltage required by the circuit, etc. GSM-R / LTE-R / 5G-R / satellite communication module, EMMC (Embedded Multimedia Card) and DDR use independent power supply systems, and other peripherals and systems share a power supply system. In addition to considering the output current of the power chip, the more important design idea is that independent power supply can realize the power control of each module by the core calculator, especially when a module of the GSM-R / LTE-R / 5G-R / satellite communication module is judged to be dead through the self-check mechanism of the software, the cold start of the module can be realized by controlling the power supply, thereby realizing the self-healing function. Considering that the device reserves EMMC for storing application data, device logs, and fault data, to avoid abnormalities in the file system caused by sudden power failure, a super capacitor is added as a backup power supply in the design. When the device loses power, the system can be notified to handle the event of EMMC, and the backup power supply will be actively cut off after the processing is completed. The working time of the backup power supply is not less than 3 seconds.

[0027] Furthermore, the core processing module is also used to monitor the status of the registered network information of each communication module through control information, and receive a registration success message of each communication module; The wireless communication module is also used to execute the action of registering the network and feed back the network registration success message to the core processing module.

[0028] Furthermore, the core processor is specifically used to convert the business demand information into an IP data stream matching the satellite communication protocol when the selected communication module is a low-orbit communication satellite communication module, and use the selected low-orbit communication satellite communication module to send the IP data stream matching the satellite communication protocol.

[0029] Furthermore, the core processor is also used to receive heartbeat messages from each communication module through the channels between the communication modules; and determine the corresponding relationship between the channel and the communication module using the communication network standard identifier carried in the heartbeat message.

[0030] In the above scheme, the core processor determines whether the communication module is working normally through heartbeat; based on the received registration network success message, it determines the accessed network, and then selects the communication module from the found communication modules, and uses the correspondence between the channel and the communication module to select the channel to send the business demand information to the selected communication module.

[0031] Furthermore, the multi-mode radio station further comprises: a communication exchange module connected to the core processor; the interface module further comprises an Ethernet interface unit connected to the extended service transmission device; The communication exchange module includes: an Ethernet exchange chip, which is used for routing and forwarding various business data.

[0032] The Ethernet switch chip can be used to connect the processor and each wireless communication module to distribute service data to each communication module; it can also be connected to the core processor to perform routing forwarding of various service data, such as Figure 3 shown.

[0033] Furthermore, the multi-mode radio station further comprises: a Trace tracker connected to the core processor; The core processor is also used to track events in the log through the Trace tracker when a communication failure occurs, identify the fault point and cause of the failure, and generate a fault information record and a diagnosis report; The Ethernet switching chip is also used for log recording, real-time monitoring of the operating status of the GSM-R / LTE-R / 5G-R / low-orbit communication satellite communication module, and storage of the logs of each communication module, recording the transmission path of the data packet in the network, determining the source, destination and nodes passed by the data packet; and monitoring and recording equipment fault information at the same time.

[0034] The above Ethernet switching chip can provide an Ethernet interface to connect the backplane and front panel, and connect the power amplifier, services, etc. through the backplane or front panel. It is used for data service transmission, control service transmission, log recording, power amplifier control, etc., and has layer 2 / layer 3 network protocols.

[0035] Furthermore, the power supply module is specifically used to independently supply power to each communication module; The core processor is also used to realize cold restart of a communication module by controlling the power module when it is determined that a communication module is frozen.

[0036] Furthermore, the hardware results of the RF module are as follows: Figure 3As shown in the figure, it includes: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components, 1 combiner / divider, and an antenna; The core processing module is further configured to output a control signal to the radio frequency module to switch the transceiver states of the first transceiver switching component and the second transceiver switching component; The radio frequency module is specifically configured to, under the control of the control signal provided by the core processing module, respectively amplify and combine the received wireless signals from the GSM-R communication module, LTE-R communication module, 5G-R communication module, low-earth orbit communication satellite communication module, and public network communication module through the first transceiver switching component, PA (Power Amplifier), second transceiver switching component, combiner / divider, and antenna, and then transmit them through the antenna; and respectively distribute and perform gain compensation on the received wireless signals through the antenna, combiner / divider, second transceiver switching component, LNA (Low Noise Amplifier), and first transceiver switching component, and then send them to the corresponding communication module.

[0037] Further, the multi-mode radio also includes GPS / Beidou: GPS / Beidou can not only be used for positioning but also as a precise clock source. Therefore, the GPS / Beidou circuit is retained in the design, and communication between GPS / Beidou and the CPU uses a UART interface.

[0038] Further, the interface module further includes: a serial port unit connected to the debugging device, a USB interface unit for log management, an interface unit for power amplifier control, a front panel indicator interface unit, etc.

[0039] Further, the multi-mode radio also includes an I / O circuit: Many functional modules in the vehicle-ground communication radio board design require I / O control, such as power control of each module of GSM-R / LTE-R / 5G-R / satellite communication, watchdog feeding signals, indicator signals, etc.

[0040] Based on the same inventive concept, the present disclosure embodiment also provides a service processing method, and its flow is as Figure 5 shown, including the following steps: Step 1: The core processing module receives service requirement information from the vehicle and determines the service ID; The service attribute identifier, service communication model identifier, and service priority identifier carried in the above service requirement information.

[0041] Specifically, the core processing module uses the correspondence between business attributes, business communication models, business priorities and business IDs to query the business ID corresponding to the business attribute identifier, business communication model identifier and business priority identifier carried in the received business demand message, and uses the queried business ID as the determined business ID.

[0042] The business attributes include: safety-related business and non-safety-related business. Safety-related business includes: train control business and emergency business; non-safety-related business includes operation and maintenance business.

[0043] After receiving the data sent by the vehicle terminal, the core processor parses the data and distinguishes between train control services, operation and maintenance services, and emergency services according to the data service attribute identifiers carried in the service demand information; The data service attribute identifiers include: 0, 1, 2; 0 represents emergency service, 1 represents train control service, and 2 represents operation and maintenance service.

[0044] The service communication models include: voice communication model 1 / 2 / 3, data communication model 1 / 2 / 3, video communication model 1 / 2 / 3 / 4. The service priority QoS includes 6 levels, 0-5, 0 is the highest priority and so on.

[0045] Business communication logos include: CS logo, PS logo and VI logo.

[0046] For example, if the service communication identifier is CS1, it belongs to voice service communication model 1; if the service communication identifier is PS1, it belongs to data service communication model 1; if the service communication identifier is VI1, it belongs to video service communication model 1.

[0047] Assuming that the service message carries the data of <1 train control service-CS1 voice communication model 1- QoS service priority 0>, Table 1 can be used to determine that the service ID is Class A service. This is a service with high real-time, security and continuity. The core processor will select a dedicated network for data transmission; Assuming that the service message carries a data service of <2 operation and maintenance service-PS2 data communication model 2- Qos service priority 4>, Table 1 can be used to determine that the service ID is a Class C service. This type of data service, which is non-secure and allows breakpoint resuming, will choose the public network for data transmission, and will give priority to the public network for service transmission; Assuming that the service message carries an emergency service of <0 emergency service - CS1 voice communication model 1 / PS1 data communication model 1 / VI1 video communication model 1 - Qos service priority is 0>, Table 1 can be used to determine that the service ID is a Class A service, and satellite / private network channels are preferred.

[0048] As shown in Table 1, the service ID may include: AF, which respectively means railway emergency call, driving-related dispatch, driving information, driving safety, operation and maintenance voice, operation and maintenance alarm, operation and maintenance data, operation and maintenance video and emergency rescue data.

[0049] The corresponding relationship between the service attributes, service IDs and other related information is shown in the following Table 1. It should be noted that Table 1 only provides the corresponding relationship for example.

[0050] In general, security services have a higher priority than non-security services; voice services have higher real-time requirements, and the priority of voice services is higher than that of data services; therefore, in Table 1, voice services in operation and maintenance have a higher priority.

[0051]

[0052] Step 2: The core processing module identifies the communication network standard.

[0053] The core processing module uses the existing communication network standard identification method to identify the network standard. In addition, the core processing module and each communication module will transmit heartbeat information to ensure that the channel between the core processing module and the communication module is unobstructed. In addition, the heartbeat information carries the network standard identification, carrying the LTM / GSM-R / Saitong / LTW-M / 5G-R identification, and the core module can determine the correspondence between the channel and the communication module.

[0054] Step 3: The core processing module determines whether the network registration success information of the wireless module is received. If so, it executes step 4; if not, it jumps to step 2; In the above step 3, the core processing module will monitor the status of the wireless module's registered network information through control information, and feedback the core processing module with a message of successful registration of the communication module after each communication module is successfully registered; if the registration is unsuccessful, the communication module will periodically perform the action of registering the network until the network registration is successful and feedback information to the core processing module.

[0055] Step 4: The core processing module determines the network standard for successful registration.

[0056] Step 5: The core processing module selects the communication network standard.

[0057] Specifically, the core processing module uses the correspondence between the service ID and the communication module to query the communication module corresponding to the determined service ID, and selects a communication module from the queried communication modules.

[0058] The service ID and communication module are shown in Table 2 below.

[0059]

[0060] The corresponding relationship between the service attributes generally reflected in Table 2 and the communication modules is as follows: The train control service corresponds to the communication modules of satellite / GSM-R / LTE-R / 5G-R; The emergency service preferentially corresponds to the low-orbit communication satellite communication module / 5G-R communication module; in a certain specific scenario (such as in special cases without network coverage like mountainous areas), satellite communication is used for emergency communication service transmission, and the inter-satellite IP method is adopted; The operation and maintenance service corresponds to the public network communication module.

[0061] Since the voice service in the operation and maintenance service has a higher priority, and the higher-priority ones need to use the private network, the service ID corresponding to the voice service in the operation and maintenance service is B, which needs to use the private network or satellite.

[0062] Step 6: The core processing module uses the selected communication module to implement vehicle-to-ground / vehicle-to-vehicle service transmission.

[0063] Because in Step 2, the core module can judge the corresponding relationship between the channel and the communication module, so in this Step 6, when receiving service data from the on-vehicle device, after the core module parses the data, it sends the service data into the channel corresponding to the selected communication module for transmission.

[0064] At the same time, the core processing module also controls the first transceiver switching component and the second transceiver switching component of the radio frequency module, and turns on the transmission channel corresponding to the selected communication module in the radio frequency module to send the service data.

[0065] Specifically, when using a satellite communication module to transmit service data, the data service control plane uses NAS signaling to encapsulate it in an S-RRC message and transmit it to the satellite base station through the satellite-to-ground air interface link. The satellite base station performs relevant IP encapsulation and forwards it to the ground gateway station, which is converted by the gateway station equipment into a standard NG-AP message and carried on the standard STCP to be sent to the 5G-R core network for processing. The data service user plane encapsulates the data service into an IP packet, and converts the IP packet into S-PDCP information and transmits it to the satellite base station through the satellite-to-ground air interface link. The GTP tunnel established by the satellite base station forwards the data encapsulated with the satellite identifier to the ground gateway station, which is converted by the gateway station equipment into a standard S-PDCP data packet and sent to the 5G-R core network for processing. The voice service control plane converts the voice signaling into S-PDCP information and transmits it to the satellite base station through the satellite-to-ground air interface link. The GTP tunnel established by the satellite base station forwards the data encapsulated with the satellite identifier to the ground gateway station. The gateway station equipment recovers the voice signaling in the S-PDCP, converts it into IP-based SIP signaling and sends it to the IMS equipment of the 5G-R core network service system to complete the signaling processing. The voice service data plane converts the voice data into S-PDCP information and transmits it to the satellite base station through the satellite-to-ground air interface link. The satellite base station encapsulates it into the corresponding data packet and forwards it to the gateway station, recovers the voice data in the S-PDCP and encapsulates it into an IP packet and sends it to the IMS equipment of the 5G-R core network service system to complete the service processing.

[0066] Based on the same inventive concept, the present disclosure also provides a service processing device, including: a receiving unit, a service ID determination unit, a communication module determination unit, a selection unit and a sending unit, wherein: A receiving unit, used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module; A service ID determination unit, configured to determine a service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the correspondence between the service attribute, service communication model and service priority and the service ID; A communication module determination unit, used to use the correspondence between the service ID and the communication module to find the communication module corresponding to the determined service ID, wherein the communication module includes: a low-orbit communication satellite communication module, a GSM-R communication module, a LTE-R communication module, a 5G-R communication module and a public network communication module; A selection unit, configured to select a communication module from the found communication modules based on the received network injection success message; The sending unit is used to send the service demand information to the selected communication module.

[0067] Based on the same inventive concept, the present disclosure also provides a computer storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0068] Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A multi-mode vehicle-mounted radio, characterized in that: include: Interface module, core processing module, wireless communication module, radio frequency module and power module; wherein: The core processing module includes: a core processor; the core processor is used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module through the interface module; determine the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the corresponding relationship between the service attribute, service communication model and service priority and the service ID; search for the communication module corresponding to the determined service ID by using the corresponding relationship between the service ID and the communication module; select a communication module from the communication modules found based on the received network injection success message; and send the service demand information to the selected communication module; The wireless communication module is connected to the core processing module through the interface module, including: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-orbit communication satellite communication module and a public network communication module; each communication module is used to register the corresponding network, send a network registration success message to the core processing module, and send service demand information to the radio frequency module; The radio frequency module is used to modulate the service demand information onto a radio frequency signal and send the radio frequency signal through an antenna; The power supply module is used to convert the input voltage into the voltage required by the module and provide power for each module.

2. The multi-mode vehicle-mounted radio according to claim 1, characterized in that: The business ID includes: AF, where A corresponds to railway emergency calls, driving-related dispatching, driving information, and driving safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarm, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data.

3. The multi-mode vehicle-mounted radio according to claim 2, characterized in that: Services A and B correspond to low-orbit communication satellite communication modules, GSM-R communication modules, LTE-R communication modules and 5G-R communication modules; Services C, D and E correspond to public network modules first, and also correspond to low-orbit communication satellite communication modules; Business F corresponds to low-orbit communication satellite communication modules and 5G-R communication modules.

4. The multi-mode vehicle-mounted radio according to any one of claims 1 to 3, characterized in that: The radio frequency module includes: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components and 1 combiner / distributor and antenna; The core processing module is further used to output a control signal to the radio frequency module to switch the transceiver status of the first transceiver switching component and the second transceiver switching component; The radio frequency module is specifically used to, under the control of a control signal, respectively via a first transceiver switching component, a PA, a second transceiver switching component, a combiner / distributor and an antenna, power amplify and combine wireless signals received from a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-orbit communication satellite communication module and a public network communication module, and transmit them through an antenna; and respectively via an antenna, a combiner / distributor, a second transceiver switching component, an LNA and a first transceiver switching component, distribute and gain compensate the received wireless signals and send them to corresponding communication modules.

5. The multi-mode vehicle-mounted radio according to any one of claims 1 to 3, characterized in that: The core processor is also used to receive heartbeat messages from each communication module through the channels between the communication modules; and determine the corresponding relationship between the channel and the communication module using the communication network standard identifier carried in the heartbeat message.

6. The multi-mode vehicle-mounted radio according to any one of claims 1 to 3, characterized in that: The power module is specifically used to independently supply power to each communication module; The core processor is also used to realize cold restart of a communication module by controlling the power module when it is determined that a communication module is frozen.

7. The multi-mode vehicle-mounted radio according to any one of claims 1 to 3, characterized in that: Also includes: a communication switching module connected to the core processor; The interface module also includes an Ethernet interface unit connected to the extended service transmission device; The communication switching module includes: an Ethernet switching chip; The Ethernet switching chip is used for routing and forwarding of various service data.

8. The multi-mode vehicle-mounted radio according to claim 7, characterized in that: Also includes: Trace tracer connected to the core processor; The core processor is also used to track events in the log through the Trace tracker when a communication failure occurs, identify the fault point and cause of the failure, and generate a fault information record and a diagnostic report; The Ethernet switching chip is also used for log recording, real-time monitoring of the operating status of the GSM-R / LTE-R / 5G-R / low-orbit communication satellite communication module, and storage of the logs of each communication module, recording the transmission path of the data packet in the network, determining the source, destination and nodes passed by the data packet; and monitoring and recording equipment fault information at the same time.

9. A business processing method, characterized in that: include: Receive business demand information from vehicle-mounted equipment and network registration success messages from each communication module; By using the correspondence between the service attribute, service communication model, service priority and service ID, the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information is determined; Using the correspondence between the service ID and the communication module, find the communication module corresponding to the determined service ID, where the communication module includes: low-orbit communication satellite communication module, GSM-R communication module, LTE-R communication module, 5G-R communication module and public network communication module; Selecting a communication module from the communication modules found based on the received network injection success message; Send business demand information to the selected communication module.

10. A service processing device, characterized in that: include: A receiving unit, a service ID determination unit, a communication module determination unit, a selection unit and a sending unit, wherein: A receiving unit, used to receive service demand information from the vehicle-mounted equipment and network injection success messages from each communication module; A service ID determination unit, configured to determine a service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service demand information by using the correspondence between the service attribute, service communication model and service priority and the service ID; A communication module determination unit, used to use the correspondence between the service ID and the communication module to find the communication module corresponding to the determined service ID, wherein the communication module includes: a low-orbit communication satellite communication module, a GSM-R communication module, a LTE-R communication module, a 5G-R communication module and a public network communication module; A selection unit, configured to select a communication module from the found communication modules based on the received network injection success message; The sending unit is used to send the service demand information to the selected communication module.

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