CN113194438B - Vehicle-mounted multi-network multi-frequency integration broadband mobile communication equipment - Google Patents
Vehicle-mounted multi-network multi-frequency integration broadband mobile communication equipment Download PDFInfo
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- CN113194438B CN113194438B CN202110447702.4A CN202110447702A CN113194438B CN 113194438 B CN113194438 B CN 113194438B CN 202110447702 A CN202110447702 A CN 202110447702A CN 113194438 B CN113194438 B CN 113194438B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/715—Interference-related aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
The invention discloses a vehicle-mounted multi-network multi-frequency integration broadband mobile communication device. The equipment comprises an aggregation transmission unit, a formation communication unit, an edge calculation unit, a control exchange unit, a command telephone unit, a Beidou communication unit, an exchange backboard, a power backboard and an external direct-current power supply. The aggregation transmission unit is used for providing data aggregation transmission supporting multiple mobile communication standards; a formation communication unit for providing ad hoc broadband mobile data transmission between the device itself and other devices in the formation; the edge calculation unit is used for calculating and determining a data transmission mode; and the control switching unit is used for realizing link switching between the aggregation transmission unit and the formation communication unit according to the data transmission mode determined by the edge calculation unit. The invention supports the integration of a plurality of communication modes and the intelligent switching of networks, and can improve the adaptive capacity of the communication environment of the equipment.
Description
Technical Field
The invention belongs to the technical field of vehicle-mounted mobile communication equipment, and particularly relates to vehicle-mounted multi-network multi-frequency integration broadband mobile communication equipment.
Background
Currently, the demand of each industry on mobile command in temporary handling, scheduling and patrol is very strong. Meanwhile, the mobile command is gradually extended from the early voice command to the visual graphic command, which will put high demands on the transmission bandwidth of the scene and the command center in large-scale motion.
At present, long-distance broadband wireless transmission is basically realized based on a public wireless network backhaul or a satellite backhaul mode, wherein satellite communication is limited by resources, the use cost is high, and the communication bandwidth is low; for public wireless networks, each operator has realized 90% coverage in 3G/4G networks at present, but the coverage effect of each operator is good and uneven, and the requirement of long-distance continuous data uploading is difficult to meet by a single operator; communication among vehicle formation in large-scale movement is currently popularized only by narrow-band voice communication, and a means of broadband communication is lacked; meanwhile, in order to meet the external communication requirements in vehicle formation, various communication devices are often required to be additionally installed and a vehicle power distribution system is modified, so that resources are greatly wasted, and a special vehicle special phenomenon is caused, so that vehicle configuration is not flexible when a task is executed, and fault nodes are increased.
Disclosure of Invention
Aiming at least one defect or improvement requirement in the prior art, the invention provides vehicle-mounted multi-network multi-frequency fusion broadband mobile communication equipment, which supports the fusion of multiple communication modes and intelligent network switching and can improve the adaptive capacity of the communication environment of equipment.
In order to achieve the above object, the present invention provides a vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device, comprising:
the aggregation transmission unit is used for providing data aggregation transmission supporting various mobile communication standards, monitoring the quality of various mobile communication networks at the position of the equipment per se, and determining a data aggregation transmission mode according to a monitoring result;
the formation communication unit is used for providing self-organized broadband mobile data transmission between the equipment and other equipment in the formation, monitoring the surrounding electromagnetic environment and adjusting a self-organized broadband mobile network according to the monitoring result;
the edge calculation unit is used for calculating and determining a data transmission mode, wherein the data transmission mode is one of data transmission by adopting the aggregation transmission unit or data transmission by adopting the formation communication unit;
and the control switching unit is used for realizing link switching between the aggregation transmission unit and the formation communication unit according to the data transmission mode determined by the edge calculation unit.
Preferably, the determining the data aggregation transmission mode according to the monitoring result includes the steps of:
if the quality difference of the multiple mobile communication networks is smaller than a preset value, averagely disassembling and separately returning the file packets to be transmitted;
and if the quality difference of the plurality of mobile communication networks is larger than a preset value, selecting the mobile communication network with the optimal quality to carry out data whole packet returning, and carrying out data backup returning by using other mobile communication networks.
Preferably, the adjusting the broadband mobile network according to the monitoring result includes the steps of: and identifying a communication scene, and automatically adjusting and matching the performance of 3 network attributes of the ad hoc network module power, the coding and decoding modes and the frequency hopping.
Preferably, the step of calculating and determining the data transmission mode includes the steps of:
when data transmission among the formation is required to be realized, the formation communication unit is adopted for data transmission;
when data transmission between the command center and the equipment is required to be achieved, the aggregation transmission unit is adopted for data transmission, and when the aggregation transmission unit of the equipment cannot meet transmission requirements, the formation communication unit is controlled to send data to be transmitted to other equipment in the formation, and the other equipment in the formation is utilized for data transmission.
Preferably, the edge computing unit is further configured to provide an installation environment for the data processing application software.
Preferably, the edge calculation unit includes a video image service module and a terminal state acquisition module.
Preferably, the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device further comprises a Beidou communication unit.
Preferably, the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device further comprises an exchange backplane, the exchange backplane is used for realizing data exchange of the internal modules of the device and providing an interface to the outside, and the interface comprises an ethernet aerial plug.
Preferably, the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device further comprises a power supply back plate and an external direct-current power supply, wherein the power supply back plate is used for realizing power supply and an outgoing power supply interface of the internal module of the device.
In general, compared with the prior art, the invention has the following beneficial effects:
(1) a communication mode of converging public network aggregate communication and private network mobile communication of an operator is adopted. By providing data aggregation transmission supporting multiple mobile communication standards, the upper limit of transmission bandwidth is improved, the data return speed and capacity of mobile formation and a command center are increased, the problem that coverage signals of regional networks of operators are not uniform is solved, and the reliability of communication data transmission in the formation and moving process is ensured. In addition, communication convergence and intelligent network switching between a public network (mobile communication network) and a private network (ad hoc broadband mobile network) are provided. And local communication and multipoint data return channels among vehicle formation can be provided, and the adaptability of the whole communication environment is improved.
(2) By integrating the Beidou module, the message data return capability under a public network-free environment is provided, and the integral communication capacity of the mobile formation during outgoing tasks is improved.
(3) Meanwhile, the communication service flow is simplified, the unified integration of various communication and computing devices is realized, and the difficulty of commanding communication vehicle devices and modifying is greatly reduced.
Drawings
Fig. 1 is an overall schematic diagram of a vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device according to an embodiment of the present invention;
fig. 2 is an application composition diagram of a vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device according to an embodiment of the present invention;
fig. 3 is a schematic application scenario diagram of a vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device according to an embodiment of the present invention includes an aggregation transmission unit, a formation communication unit, an edge calculation unit, and a control switching unit, and the present invention mainly implements communication fusion between a public network (mobile communication network) and a private network (ad hoc broadband mobile network) and intelligent network switching through these four modules. In addition, as a further improvement of the present invention, the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device in the embodiment of the present invention may further include a command telephone unit, a beidou communication unit, a switching backplane, a power backplane, and an external dc power supply, and these modules may be flexibly adjusted according to functional requirements.
In an optional embodiment, the aggregation transmission unit and the formation communication unit are communication transmission units which are accessed to the control switching unit through 1 RJ45 interface, and provide uplink transmission links and intelligent route switching strategies of the equipment; the edge computing unit is accessed to the control switching unit through 2 RJ45 interfaces, and provides an equipment route switching algorithm and an edge starting service operation environment; the command telephone unit is accessed to the control exchange unit through 1 RJ45 interface to provide the voice dispatching function with the command center; the exchange back board is used for realizing data exchange of the internal module of the equipment and providing an interface to the outside, and the interface comprises 4 10P Ethernet aerial sockets. The power backplane is used for realizing power supply of internal modules of the equipment and an outgoing power interface, such as 3P power supply aviation plug. The external direct-current power supply adopts a lithium battery to provide 24V direct-current power supply for the equipment.
The function and preferred implementation of each module is explained in detail below.
And the aggregation transmission unit is used for providing data aggregation transmission supporting various mobile communication standards, monitoring the quality of various mobile communication networks at the position of the equipment, and determining a data aggregation transmission mode according to the monitoring result.
The plurality of mobile communication standards refers to mobile networks of different standards provided by different operators. Specifically, the method supports the 3G/4G/5G network aggregation transmission covered by three operators of mobile, communication and telecommunication, and is realized by configuring public network radio frequency modules, intelligent aggregation algorithms and network modules of SIM cards of different operators. In one embodiment, the aggregate transmission unit supports operators LTE TDD band38(2.6GHz), band39(1.9GHz), band40(2.3 GHz); LTE FDD band7(2.6GHz), TD-SCDMA A frequency band (2.1GHz) and F frequency band (1.9GHz) are downward compatible, and GSM900MHz and GSM1800MHz are downward compatible.
The aggregation transmission unit provides a public network aggregation mode with different strategies by monitoring and grading the mobile network quality of each operator, specifically:
if the quality difference of the plurality of mobile communication networks is smaller than a preset value, averagely disassembling and separately returning the file packets to be transmitted; if the quality difference of the multiple mobile communication networks is larger than a preset value, a mobile communication network channel with the optimal quality is selected to perform single-point transmission on the file, backup transmission is performed through other mobile communication networks, and the command center selects the file according to the completeness of the file after receiving transmission of different networks.
And the formation communication unit is used for providing broadband mobile data transmission between the equipment and other equipment in formation, monitoring the surrounding electromagnetic environment and adjusting a broadband mobile network according to the monitoring result.
In one embodiment, the formation communication unit is provided with an electromagnetic environment monitoring module which is mainly used for collecting and identifying relevant parameters of electromagnetic environment such as the type, the strength, the frequency band and the like of peripheral interference signals in the running process of a vehicle; configuring a power amplifier module, and mainly adjusting the transmitting power of a signal source; and configuring an ad hoc network module, and providing selection of wireless transmission waveforms based on the SDR, wherein the selection comprises a high-bandwidth waveform and a long-distance coverage waveform.
In one embodiment, adjusting the broadband mobile network according to the monitoring result comprises the following steps: the method comprises the steps of sampling scene electromagnetic environment conditions which vehicles will pass through in actual environments in advance, collecting relevant parameters of the electromagnetic environments such as types of main interference sources, interference intensity and signal transmission characteristics in different environments in areas such as expressways, urban arterial roads, urban dense arterial roads and rural roads, establishing an electromagnetic environment database of the areas by using the relevant parameters of the electromagnetic environments through an information fingerprint algorithm, and adjusting parameters of a broadband mobile network in the areas to ensure that optimal coverage effect waveforms are achieved. To this end, the electromagnetic environment database stores two types of data: (1) the electromagnetic environment related parameters of each scene are used for judging and determining the area where the vehicle is located in one function, and used for calculating the optimal coverage waveform of each area in the other function; (2) the calculated optimal electromagnetic coverage waveform corresponding to each region has the function of enabling the broadband mobile data to reach the optimal coverage waveform by adjusting network attributes after determining the scene where the vehicle is located.
When the vehicle passes through a similar scene again, the electromagnetic environment monitoring module compares the collected magnetic field environment with the relevant parameters of the electromagnetic environment in the database to determine the current region, the ad hoc network module adjusts according to the optimal covering waveform matched with the identified scene, the change of the covering distance is adapted through power adjustment, different service data transmission effects are adapted through switching coding and decoding modes, and the influence of an interference source is adapted through selection of frequency hopping until the preset specified environment waveform parameters are adjusted.
In one embodiment, the main operating band of the queued communication unit is 566-.
And the edge calculation unit is used for calculating and determining a data transmission mode, wherein the data transmission mode is one of data transmission by adopting an aggregation transmission unit or data transmission by adopting a formation communication unit. The designed route switching algorithm can be built in the edge computing unit to realize the functions.
And the control switching unit is used for realizing link switching between the aggregation transmission unit and the formation communication unit according to the data transmission mode determined by the edge calculation unit.
In one embodiment, the calculation determines the data transmission mode as follows: when data transmission between the formation is required to be realized, the edge computing unit determines to adopt the formation communication unit to carry out data transmission, controls the exchange unit to control the realization of link switching, and sends the data to other equipment by using the formation communication unit; when data transmission between the command center and the equipment is required to be realized, the edge computing unit determines to adopt the aggregation transmission unit for data transmission, controls the switching unit to realize link switching, and sends data to the command center through the aggregation transmission unit; when the aggregation transmission unit of the equipment can not meet the transmission requirement, the control exchange unit controls the formation communication unit to send the data to be transmitted to other equipment in the formation, and the formation communication units of other equipment in the formation are utilized to realize data transmission.
The control switch unit may also be used to provide information encryption inside the equipment in order to achieve secure transmission of information. The control switch unit supports the cryptographic SM3/SM4 encryption algorithm. The control exchange unit comprises a data processing module, an encryption and decryption module and an Ethernet exchange module.
The edge computing unit is also used for providing an installation environment of the data processing application software, and various functions are realized by the data processing application software built in the edge computing module. Preferably, the edge computing unit adopts a low-power consumption processing module, provides a GPU video card unit, and can meet the requirements of edge application and algorithm bearing environments.
In one embodiment, the edge calculation unit includes a video image service module and a terminal state acquisition module. The terminal can be sign acquisition equipment worn by an operator on the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication equipment.
The telephone command unit is used for providing a voice scheduling function between the equipment and a command center or between formation equipment. In one embodiment, the phone commander unit includes a voice exchange board, a bluetooth module, and a bluetooth voice handle. The voice communication system has a voice exchange function, can realize hotline and cluster communication with a command center through the aggregation transmission unit, and can realize hotline and cluster communication with other equipment through the formation communication unit.
The Beidou communication unit is used for realizing data transmission under the condition of no operator mobile network, and further guarantees the reliability of the equipment.
In addition, the equipment also comprises an ad hoc network antenna, a public network antenna, a communication telephone handle, an external direct-current power supply and the like.
As shown in fig. 2, the vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device is applied to audio and video broadband communication and data transmission scenes between field vehicle formation and between the vehicle formation and a command center, and comprises a command center part and a vehicle-mounted device part. The single equipment application process comprises the following steps:
(1) the device provides an Ethernet interface and a serial port, wherein the Ethernet interface is accessed to peripheral application equipment, and the serial port realizes Beidou message information access;
(2) when the device is connected with an external video image acquisition device, the camera is connected in a wired mode and 12V power supply is provided, acquired video information is compressed and stored through an edge computing board built-in video image service, when a background command center needs to adjust and watch video images, the edge computing built-in video image service is directly called by a back-end platform service, after encryption processing is carried out through a control exchange unit, an aggregation transmission unit transmits the encrypted video information to the command center through an operator public network for decryption and watching.
(3) When the equipment is accessed into an external wireless state acquisition terminal (physical sign acquisition equipment such as wristbands), the equipment is accessed into a local area network (Bluetooth), the acquired state is collected and analyzed through the built-in state acquisition service of the edge computing board, and the state is encrypted by the control exchange unit and then is transmitted back to the command center.
(4) When the equipment is accessed into other application systems, the equipment is accessed through an external Ethernet interface provided by the equipment, is subjected to route conversion and encryption through the control switching unit, then is transmitted back to the command center, and is transmitted to each application platform after being decrypted by the command center.
(5) The device provides an external voice handle, analog-to-digital conversion is carried out on voice through the command telephone unit, and hot line and cluster scheduling voice between the device and a command center and among other vehicles are achieved through the aggregation transmission unit and the formation communication unit.
(6) The equipment integrated Beidou communication module is connected to the edge computing board through a serial port, and provides equipment time service, positioning, short message receiving and sending capabilities.
As shown in fig. 3, when a plurality of devices of the device form a formation deployment task, a single device can independently complete the communication service function of the vehicle, and if a certain device fails, for example, enters a public network signal such as a tunnel and the like and a satellite signal covers a poor area, the required upload data can be forwarded to a vehicle with a strong signal coverage area through the formation communication unit and then transmitted back to the command center.
It will be understood by those skilled in the art that the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, since various modifications, substitutions and improvements within the spirit and scope of the invention are possible and within the scope of the appended claims.
Claims (7)
1. The utility model provides a vehicle-mounted multi-network multifrequency fuses broadband mobile communication equipment which characterized in that includes:
the aggregation transmission unit is used for providing data aggregation transmission supporting various mobile communication standards, monitoring the quality of various mobile communication networks at the position of the equipment per se, and determining a data aggregation transmission mode according to a monitoring result;
the formation communication unit is used for providing self-organized broadband mobile data transmission between the equipment and other equipment in the formation, monitoring the surrounding electromagnetic environment and adjusting a self-organized broadband mobile network according to the monitoring result;
the edge calculation unit is used for calculating and determining a data transmission mode, wherein the data transmission mode is one of data transmission by adopting the aggregation transmission unit or data transmission by adopting the formation communication unit;
the control switching unit is used for realizing link switching between the aggregation transmission unit and the formation communication unit according to the data transmission mode determined by the edge calculation unit;
the method for determining the data aggregation transmission according to the monitoring result comprises the following steps:
if the quality difference of the multiple mobile communication networks is smaller than a preset value, averagely disassembling and separately returning the file packets to be transmitted;
if the quality difference of the various mobile communication networks is larger than a preset value, selecting the mobile communication network with the optimal quality to carry out data whole packet returning, and carrying out data backup returning by using other mobile communication networks;
the adjusting the broadband mobile network according to the monitoring result comprises the following steps: identifying a communication scene, and automatically adjusting and matching the self-networking module power, the coding and decoding mode and the 3 network attribute performances of frequency hopping;
the calculation and determination of the data transmission mode comprises the following steps:
when data transmission among the formation is required to be realized, the formation communication unit is adopted for data transmission;
when data transmission between the command center and the equipment is required to be achieved, the aggregation transmission unit is adopted for data transmission, and when the aggregation transmission unit of the equipment cannot meet transmission requirements, the formation communication unit is controlled to send data to be transmitted to other equipment in the formation, and the other equipment in the formation is utilized for data transmission.
2. The in-vehicle multi-network multi-frequency fusion broadband mobile communication device of claim 1, wherein the edge computing unit is further configured to provide an installation environment for data processing application software.
3. The in-vehicle multi-network multi-frequency fusion broadband mobile communication device of claim 2, wherein the edge calculation unit comprises a video image service module and a terminal state acquisition module.
4. The vehicular multi-network multi-frequency fusion broadband mobile communication device according to claim 1, further comprising a command telephone unit for providing a voice scheduling function between the device and a command center or between formation devices.
5. The vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device of claim 1, further comprising a Beidou communication unit.
6. The vehicular multi-network multi-frequency fusion broadband mobile communication device according to claim 1, further comprising a switch backplane, wherein the switch backplane is configured to implement data exchange of internal modules of the device and provide an interface to the outside, and the interface includes an ethernet navigation plug.
7. The vehicle-mounted multi-network multi-frequency fusion broadband mobile communication device of claim 1, further comprising a power backplane and an external dc power supply, wherein the power backplane is used for supplying power to internal modules of the device and for providing an external power interface.
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| KR102275288B1 (en) * | 2017-01-03 | 2021-07-09 | 삼성전자 주식회사 | Method of inter carrier for v2x communication |
| DE112018003365T5 (en) * | 2017-06-30 | 2020-03-12 | Intel Corporation | V2X COMMUNICATIONS USING MULTIPLE RADIO ACCESS TECHNIQUES (MULTIPLE ADVICE) |
| CN110062349B (en) * | 2018-01-18 | 2021-12-03 | 华为技术有限公司 | Method and device for selecting communication mode and vehicle |
| CN111526496B (en) * | 2020-05-12 | 2023-05-26 | 北京踏歌智行科技有限公司 | C-V2X communication anomaly detection method based on group type command and dispatch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3627928A1 (en) * | 2017-09-15 | 2020-03-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for configuring resources, terminal device and network device |
| CN111132080A (en) * | 2019-12-09 | 2020-05-08 | 北航（四川）西部国际创新港科技有限公司 | Self-adaptive seamless switching system and method for multi-network converged communication |
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