WO2019098494A1 - 차량통신 서비스 제공 방법 및 차량통신 서비스 제공 단말 - Google Patents
차량통신 서비스 제공 방법 및 차량통신 서비스 제공 단말 Download PDFInfo
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- WO2019098494A1 WO2019098494A1 PCT/KR2018/008377 KR2018008377W WO2019098494A1 WO 2019098494 A1 WO2019098494 A1 WO 2019098494A1 KR 2018008377 W KR2018008377 W KR 2018008377W WO 2019098494 A1 WO2019098494 A1 WO 2019098494A1
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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
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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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
- H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
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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
- H04W4/02—Services making use of location information
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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
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to a vehicle terminal that provides a 100 Mbps class vehicular communication service capable of interworking with a mobile communication network, and it is an object of the present invention to improve a data transmission rate using an nxn Multiple Input Multiple Output (MIMO)
- MIMO Multiple Input Multiple Output
- a vehicle communication service providing method and a vehicle communication service providing terminal capable of seamlessly providing a vehicle communication service such as a next generation intelligent traffic system (ITS), autonomous traveling and cooperative traveling, at high speed in cooperation with a built-in mobile communication network .
- ITS intelligent traffic system
- vehicle communication can be divided into V2V (Vehicle to Vehicle), which is a communication between a vehicle and a vehicle, and Vehicle to Infrastructure (V2I), which is a communication between a vehicle and a base station.
- V2V Vehicle to Vehicle
- V2I Vehicle to Infrastructure
- FIG. 1 is a diagram illustrating a process of providing a V2V service and a V2I service through a vehicle terminal according to an embodiment of the present invention.
- the front and rear vehicles 110 and 120 moving on the road can use the V2V service by data communication through a vehicle terminal mounted on each vehicle 110 and 120 within a predetermined distance.
- each of the vehicles 110 and 120 can use various V2I services, including road traffic information provided from an external server, through data communication with the base station 130 installed on the roadside.
- WAVE Wireless Access in Vehicular Environment
- the embodiment of the present invention enables 100 Mbps high-speed data communication at least four times higher than the existing vehicle communication ('WAVE communication') and supports continuous data communication at a low network construction cost by interworking with a mobile communication network already established , And to provide driving services such as autonomous driving and cooperative driving while maintaining compatibility with existing vehicle communication methods.
- 'WAVE communication' existing vehicle communication
- the embodiment of the present invention modifies the High MAC module included in the MAC structure in the protocol of the existing vehicle communication ('WAVE communication') to improve the transmission / reception latency while maintaining compatibility with the existing vehicle communication method. And to improve it.
- the embodiment of the present invention provides a vehicle communication service in cooperation with a mobile communication network when a signal transmitted by a vehicle base station in the vicinity of a road is not detected, thereby continuously providing a vehicle communication service anywhere in the nation, , And to reduce the installation cost of a base station for a vehicle.
- the embodiment of the present invention aims at providing high-speed vehicle communication without interruption and providing traveling service such as autonomous driving and cooperative driving.
- the process of disconnecting and reconnecting after the first connection to the mobile communication network is omitted So as to minimize the switching time between the vehicle communication and the mobile communication network.
- a method for providing a vehicle communication service includes the steps of detecting a signal transmitted by a first vehicle base station located within a predetermined range from a vehicle as a service request is input from the vehicle, , The method comprising the steps of: operating a vehicle communication module provided to connect to a first vehicle base station, and connecting to a service server from a first vehicle base station through a plurality of service channels established between the first vehicle base station and the connected first vehicle base station And providing the vehicle with a response in response to the service request.
- the vehicle communication service providing terminal includes a detecting unit that detects a signal transmitted by a first vehicle base station located within a predetermined range from the vehicle when a service request is input from the vehicle, And a control unit that operates the provided vehicle communication module in accordance with the detection of the signal so as to connect the first vehicle base station to the first vehicle base station through a connection unit connected to the first vehicle base station and a plurality of service channels set between the first vehicle base station and the service server And a processing unit for receiving the transmitted data signal from the first base station for vehicle and providing the data signal to the vehicle in response to the service request.
- various application services such as autonomous driving and cooperative driving can be easily provided to a vehicle in addition to basic information applied to a next generation intelligent transportation system (ITS) by linking high-speed vehicle communication technology and mobile communication technology can do.
- ITS intelligent transportation system
- the existing vehicle base station (the second vehicle base station) with high compatibility with the existing vehicle communication ('WAVE')
- FIG. 1 is a diagram illustrating a process of providing a V2V service and a V2I service using a vehicle terminal according to an embodiment of the present invention.
- FIG. 2A is a diagram illustrating a process of providing a vehicle communication service using a vehicle communication service providing terminal according to an embodiment of the present invention.
- FIG. 2B is a diagram illustrating the structure of a communication module included in the vehicle communication service providing terminal shown in FIG. 2A.
- FIG. 3 is a block diagram illustrating an internal configuration of a vehicle communication service providing terminal according to an embodiment of the present invention.
- FIG. 4 is a diagram showing an example of the arrangement of a plurality of service channels in a vehicle communication service providing terminal according to an embodiment of the present invention.
- 5A is a diagram illustrating a structure of a physical layer (PHY) for data communication in an nxn MIMO scheme in a vehicular communication service providing terminal according to an embodiment of the present invention.
- PHY physical layer
- 5B is a diagram illustrating an example of modifying a High MAC module included in the MAC structure in accordance with the nxn MIMO scheme data communication shown in FIG. 5A.
- FIG. 6 is a flowchart illustrating a procedure of a method for providing a vehicle communication service according to an embodiment of the present invention.
- FIG. 7 is a flowchart illustrating a procedure of a method of providing a vehicle communication service according to another embodiment of the present invention.
- FIG. 2A is a diagram illustrating a process of providing a vehicle communication service using a terminal for providing a vehicle communication service according to an embodiment of the present invention.
- FIG. 2B is a flowchart illustrating a process of providing a vehicle communication service using a communication module Fig.
- a terminal for providing a vehicle communication service includes a vehicle communication service (V2I service, V2V service, The V2X terminals 230 and 240 of FIG.
- the V2X terminals 230 and 240 include a vehicle communication module (WAVE +) 231 and 241 for performing a large-capacity vehicle communication and a structure in which a mobile communication module (LTE) 232 and 242 are combined , It is possible to perform an optimal vehicle communication network connection in the order illustrated in Fig.
- the V2X terminal 230 preferentially uses the vehicle communication module (WAVE +) 231 capable of transmitting a relatively large-capacity data signal at a high speed, but the V2X terminal 230 uses seamless communication with a plurality of mobile communication base stations
- a mobile communication module (LTE) 232 capable of transmitting a signal can be complemented to provide a V2I service.
- the V2X terminal 230 activates the vehicle communication module (WAVE +) 231, and transmits the driving service request associated with the autonomous driving or the cooperative driving from the vehicle 210 to the vehicle base station 201 (N is an integer of 1 or more) from the vehicle-mounted base station 201, for example, a data signal from a service server operated by the next-generation intelligent traffic system (ITS) 6 or less) and provides the vehicle 210 with the service channel.
- WAVE + vehicle communication module
- the V2X terminal 230 can display the entire traffic information of the road, the danger area guide, the proximity information of the emergency vehicle, the notice of the area of interest, and the video collected by the other vehicle at a remote distance necessary for autonomous driving or cooperative driving,
- a data signal associated with at least one of the CCTV photographed images on the road side may be provided by vehicle communication (V2I) between the vehicle and the base station.
- V2I vehicle communication
- the V2X terminal 230 transmits the mobile communication module (LTE) 232 to the V2X terminal 230 if the signal transmitted by the vehicle-use base station 201 is not detected because the base station 201 is not located within a certain distance from the vehicle 210 Detects a mobile communication signal (e.g., an 'LTE signal') transmitted from the mobile communication base station 202 and connects the mobile communication base station 202 to the mobile communication base station 202, Data signals may be received and provided to the vehicle 210.
- LTE mobile communication module
- the V2X terminal 230 transmits the data signal from the vehicle- And may receive the data signal from the mobile communication base station 202 when the signal transmitted by the vehicular base station 201 is not detected or the reception strength of the signal is weak.
- the V2X terminal 230 simultaneously connects to the vehicle-mounted base station 201 and the mobile communication base station 202 on the road side using the vehicle communication module (WAVE +) 231 and the mobile communication module 232 in combination, . ≪ / RTI >
- the V2X terminal 230 operates the vehicle communication module (WAVE +) 231 in conjunction with the input of the traveling service request and transmits the V2X terminal 240 installed in the adjacent vehicle 220 following the vehicle 210, (WAVE +) 241 and is connected to the vehicle communication module (WAVE +) 241 via the vehicle communication (V2V) between the vehicle communication modules (WAVE +) 231, 241 to stop sudden stop of the preceding vehicle, Acquires a data signal associated with at least one of a traffic situation that can not be seen by the obscured view due to the obscured view, a driving condition detection such as a sleepiness of the preceding vehicle and a trailing vehicle driver, can do.
- a driving condition detection such as a sleepiness of the preceding vehicle and a trailing vehicle driver
- the vehicle communication service providing terminal is capable of performing high-speed data communication such as LTE (high-speed data communication) while having a high data transmission amount compared to existing low-speed vehicle communication (WAVE + network) can be used in areas with high traffic volume due to high traffic volume, and vehicle communication services can be provided using LTE network in areas with low traffic volume.
- high-speed data communication such as LTE (high-speed data communication)
- WAVE + network existing low-speed vehicle communication
- the vehicle communication service providing terminal is composed of a vehicle communication module (WAVE +) and a mobile communication module and is connected to a vehicle communication module (WAVE +) mounted on another vehicle via a vehicle communication module (WAVE + (ITS) service by providing a V2I service (service between a vehicle and a base station) while being connected to a vehicle base station while providing a V2I service by being connected to a mobile communication base station through a mobile communication module, ) And communication services for cooperative driving and autonomous driving.
- WAVE + vehicle communication module
- ITS vehicle communication module
- the vehicle communication service providing terminal combines vehicle communication (WAVE +) capable of high-speed data communication of 100 Mbps or higher at least four times higher than the existing vehicle communication (WAVE) and existing mobile communication capable of connecting with a large coverage and a plurality of terminals Therefore, it is possible to reduce the construction cost of the expensive base station only for the vehicle communication and maximize the existing commercial mobile communication network, thereby providing high-speed seamless communication service.
- vehicle communication WAVE +
- existing vehicle communication WAVE
- FIG. 3 is a block diagram illustrating an internal configuration of a vehicle communication service providing terminal according to an embodiment of the present invention.
- the vehicle communication service providing terminal 300 includes a detecting unit 310, a connecting unit 320, a setting unit 330, a processing unit 340, and a communication module 350, As shown in FIG.
- the vehicle communication service providing terminal 300 may include a communication module 350 so as to simultaneously perform data communication with different types of base stations on the road side.
- the communication module 350 may have a structure in which the vehicle communication module 351 and the mobile communication module 352 are combined.
- the detection unit 310 detects a signal transmitted from the vehicle by the first base station for vehicle located in a predetermined range (e.g., '20 m').
- the detection unit 310 detects a service request from the service server Traffic System (ITS) ').
- ITS Traffic System
- the detection unit 310 detects a signal of a predetermined intensity or more emitted from the first vehicle base station to attempt vehicle communication ('WAVE +') capable of transmitting a relatively large-capacity data signal at a high speed, ) Can be searched for.
- connection unit 320 operates the provided vehicle communication module 351 according to the detection of the signal to connect with the first vehicle base station.
- the connection unit 320 can connect to the first vehicle base station using a selected wide band frequency ('5 GHz band').
- the setting unit 330 sets a plurality of service channels for transmitting and receiving data signals with the first base station to be connected.
- the setting unit 330 is connected to the first vehicle base station using the selected wide band frequency (e.g., '5 GHz' band), and sets n (n is a natural number of 1 to 6) To increase the data communication speed by extending the bandwidth for each service channel.
- the selected wide band frequency e.g., '5 GHz' band
- n is a natural number of 1 to 6
- the setting unit 330 may set n service channels that can be simultaneously used to enable data signals to be transmitted and received in an nxn Multiple Input Multiple Output (MIMO) scheme.
- MIMO Multiple Input Multiple Output
- the setting unit 330 arranges each service channel in the same structure as that of the existing WAVE vehicle communication, maintains the connection compatibility with the second vehicle base station installed for existing WAVE vehicle communication, You can disable simultaneous use of control channels and service channels by using TDM channels.
- the setting unit 330 sets n service channels (where n is a natural number equal to or greater than 1 and less than or equal to 6) on the wide frequency band and sets a control channel for transmitting and receiving a control signal to and from the first vehicle base station as n It is possible to arrange the service channels in a central region corresponding to the center of the set broadband frequency.
- the control signal may be a signal for controlling and managing the vehicle communication service providing terminal 300 mounted in each vehicle at the first vehicle base station.
- the setting unit 330 sets up a maximum of six service channels ('Ch 172', 'Ch 172', and 'Ch 172') in each of the regions 410 to 460 on the wide band frequencies (5.855 GHz to 5.925 GHz) Ch ', Ch 180, Ch 182, and Ch 184) in a central region 470 on a wide frequency band not occupied by a service channel, 178 ').
- a maximum of six service channels ('Ch 172', 'Ch 174', 'Ch 176', 'Ch 180', 'Ch 182' For example, two, three, four, or five at the same time to transmit and receive data signals to and from the first vehicle base station.
- the processing unit 340 sets up six service channels (Ch 172, Ch 174, Ch 176, Ch 180, Ch 182, and Ch 184) (For example, 410) among the channels 410 to 460 to transmit and receive the data signal.
- the processor 340 combines two service channels (410 + 420, 420 + 430, 440 + 450, or 450 + 460, for example) among the six service channels set according to the size of the service capacity, And may simultaneously transmit and receive the data signal.
- the processor 340 combines three service channels (for example, 410 + 420 + 430 or 440 + 450 + 460) out of the six service channels set according to the size of the service capacity, Data signals may be transmitted and received.
- the processor 340 combines four service channels (410 + 420 + 430 + 440 or 430 + 440 + 450 + 460) out of the six service channels set according to the size of the service capacity, And may simultaneously transmit and receive the data signal.
- the processing unit 340 combines five service channels (for example, 410 + 420 + 430 + 440 + 450 or 420 + 430 + 440 + 450 + 460) out of the six service channels set according to the size of the service capacity , And the data signal may be transmitted and received using the combined channel at the same time.
- five service channels for example, 410 + 420 + 430 + 440 + 450 or 420 + 430 + 440 + 450 + 460
- the processing unit 340 combines the six service channels 410 + 420 + 430 + 440 + 450 + 460, which are set, when the service to be provided is large, such as a moving image service, It is also possible to send and receive signals.
- the processing unit 340 uses the service channel and the control channel in a time-division manner. Interference between signals can be prevented by stopping transmission / reception of control signals through the control channel during data signal transmission / reception through the service channel.
- the processing unit 340 may further use a control channel ('Ch 178') not used for transmission / reception of a control signal for receiving a data signal through a service channel.
- the processing unit 340 can receive the data signal from the first vehicle-use base station more quickly by using a total of seven channels simultaneously.
- the setting unit 330 may rearrange the control channel to at least one of the areas where the plurality of service channels are set, and set the central area as a new service channel.
- the setting unit 330 sets 'Ch 172' or 'Ch 184' corresponding to the regions 410 and 460 at both ends on the wide band frequencies ('5.855 GHz' to '5.925 GHz' Ch 178 corresponding to the central area 470 may be set as the service channel instead of placing the control channel in the service area.
- control channel can be used in real time, and the service channel can be used by combining a plurality of consecutive channels. That is, the processing unit 340 can simultaneously transmit and receive data signals through each service channel and transmit and receive control signals through the control channel.
- the setting unit 330 is a unit for setting a MAC (Medium Access Control) on a predetermined existing vehicle communication protocol (e.g., WAVE communication) capable of using any one service channel among the n service channels so that the data signal can be received according to the nxn MIMO scheme.
- a MAC Medium Access Control
- WAVE communication e.g., Wi-Fi
- a predetermined existing vehicle communication protocol e.g., WAVE communication
- the setting unit 330 changes the physical layer (PHY) and the MAC structure of the existing WAVE communication protocol so that n service channels can be simultaneously used and enables reception of the data signal according to the nxn MIMO scheme .
- the setting unit 330 sets the structure of the physical layer (PHY) of the vehicle communication (WAVE +) protocol according to the present invention to the Low Mac Block 510, the MIMO Modem Block And a High MAC module 540 that includes a 4 ⁇ 4 MIMO scheme and an RF block 530 that can transmit and receive data signals of 4 ⁇ 4 MIMO scheme and transmits and receives a 4 ⁇ 4 MIMO scheme data signal.
- PHY physical layer
- WAVE + vehicle communication
- the setting unit 330 conforms to the WAVE standard in order to have compatibility with the existing vehicle communication network (WAVE).
- WAVE vehicle communication network
- a single service channel of the existing WAVE is composed of six , 4 ⁇ 4 MIMO scheme, or 6 ⁇ 4 MIMO scheme, so that the data signal is transmitted and received at a rate of up to 24 times compared to the existing WAVE communication technique.
- the MAC layer such a 4 ⁇ 4 MIMO scheme and By implementing the function according to the six service channel configuration and correcting the high MAC, it is possible to improve the service providing speed by making the transmission and reception latency less than about 10 msec compared to the existing WAVE communication technology.
- the setting unit 330 uses only one channel in the frequency allocation in the 4x4 MIMO scheme, arranges four service channels to use four channels, and configures six service channels to use all six channels It can be configured to use.
- the processing unit 340 receives the data signal transmitted by the service server through the plurality of service channels set up between the connected first base station for the vehicle and the first base station for vehicle and transmits the data signal in response to the service request To the vehicle.
- the processing unit 340 may use an n ⁇ n MIMO (Multiple Input Multiple Output ) System, it is possible to receive the data signal from the first base station for vehicle and provide it to the vehicle.
- n MIMO Multiple Input Multiple Output
- the processing unit 340 may transmit the data signal from the first vehicle-use base station to the first vehicle-use base station at a communication speed of at least n times or more than the communication speed at which the data signal is received from the second vehicle- And can receive the data signal and provide it to the vehicle.
- the processing unit 340 transmits the existing second vehicle base station that can use any of the n service channels
- the data signal can be received and provided to the vehicle at a speed at least n times faster than vehicle communication (WAVE).
- the processing unit 340 transmits a data signal transmitted / received at a maximum communication speed of 27 Mbps in a 10 MHz bandwidth through a conventional WAVE communication using one of the six service channels shown in FIG. 4 to a 4 ⁇ 4 MIMO Or up to six service channels together to transmit and receive at a rate of approximately 100 Mbps, at least four times faster.
- the transmission / reception speed of the data signal can be determined at a higher speed in proportion to the number of simultaneously available service channels. That is, when the signals are respectively detected by the detecting unit 310 from a plurality of vehicle-use base stations using different numbers of service channels, the connection unit 320 preferentially transmits, to the vehicle-use base stations using a larger number of service channels And the processing unit 340 can receive the data signal at a high speed proportional to the number of channels.
- a control channel for transmitting / receiving a control signal to / from the first vehicle base station is arranged in a central region corresponding to the center of the broadband frequency on which the plurality of service channels are set by the setting unit 330, (340) stops transmission and reception of the control signal through the control channel while receiving the data signal using the plurality of service channels, and further uses the control channel as a service channel to transmit the data signal .
- the processing unit 340 can prevent interference between channels between the data signal and the control signal, and can combine six service channels and one control channel It becomes possible to receive the data signal from the first vehicle base station at a higher speed by using the seven channels simultaneously.
- the processing unit 340 Receive the data signal using a plurality of service channels further comprising a new service channel and allow transmission and reception of the control signal over the relocated control channel during reception of the data signal.
- the processing unit 340 may use 'Ch 172' or 'Ch 184' of both end regions 410 and 460 on a wide frequency band used for connection as a control channel,
- 'Ch 178' of the central area 450 corresponding to the first service channel as a service channel
- data signals are transmitted / received using up to six service channels at the same time, and the control channel can be continuously used in real time, Management of the vehicle terminal of the vehicle base station can be made easier.
- the vehicle communication service providing terminal 300 of the present invention can quickly receive information necessary for autonomous driving or cooperative driving from a service server through a high-speed large-capacity vehicle communication (WAVE +) and provide it to a vehicle,
- WAVE + high-capacity vehicle communication
- WAVE + it is possible to receive and provide the traffic through the existing low-speed vehicle communication (WAVE) or mobile communication network.
- the detecting unit 310 detects a mobile communication signal received from the mobile communication base station within a predetermined range .
- the mobile communication base station is at least one of an LTE base station, a WCDMA base station, and a GSM base station. If a mobile communication signal transmitted by the LTE base station is not detected, the detection unit 310 detects the mobile communication signal by the WCDMA base station or the GSM base station It is possible to detect a mobile communication signal to be transmitted.
- the detecting unit 310 detects a signal from the first base station base station signal for receiving a data signal through a large-capacity high-speed vehicle communication (WAVE +), and detects a mobile communication signal (LTE signal) Mobile communication signals from a low-speed WCDMA base station or a GSM base station can be sequentially detected as a lane when there is no high-speed LTE network that can be connected.
- WAVE + large-capacity high-speed vehicle communication
- LTE signal mobile communication signal
- the connection unit 320 operates the mobile communication module according to the detection of the mobile communication signal and connects with the mobile communication base station.
- the processing unit 340 receives the data signal from the mobile communication base station, Can be provided to the vehicle.
- connection unit 320 may attempt to connect to the mobile communication base station only once for the first time. Thereafter, the idle mode in which the connection state is maintained even when the reception of the data signal is terminated or stopped, Time can be minimized.
- the processing unit 340 When the signal from the first vehicle base station is detected by the detection unit 310 during reception of the data signal through the mobile communication base station, the processing unit 340 receives the data signal from the mobile communication base station And switches the mode of the mobile communication module to an idle mode for maintaining a connection state with the mobile communication base station and subsequently receives the data signal from the first vehicle base station connected via the vehicle communication module Can be provided to the vehicle.
- the processing unit 340 monitors the base station signal around the vehicle through the detection unit 310, and when a network capable of high-speed high-speed data transmission is newly identified, Signals can be transmitted and received.
- the processing unit 340 switches the mobile communication module from the idle mode to the active mode, and resumes reception of the data signal through the mobile communication base station can do.
- the processing unit 340 operates the mobile communication module 352 in the idle mode and does not need to attempt to reconnect to the mobile communication base station through the connection unit 320,
- the switching between heterogeneous communication networks can be performed quickly and the data signal being received through the vehicle communication network can be continuously received through the mobile communication network without interruption.
- the connection unit 320 determines that the signal detected by the detection unit 310 is not the above-mentioned signal from the first vehicle base station signal using the n service channels together, In the case of a transmission signal from a second vehicle base station using any one of the n service channels, even if the mobile communication signal is detected, it is possible to attempt connection with the second vehicle base station.
- the processing unit 340 can receive the data signal by using the existing vehicle communication (WAVE) capable of high-capacity data transmission even if the speed is lower than that of the mobile communication network, and when there is no second vehicle- And can receive the data signal in conjunction with a communication network.
- WAVE existing vehicle communication
- the detection unit 310 can determine the communication method to be one of vehicle communication (WAVE +, WAVE) and mobile communication based on the base station signal detected within the predetermined range from the vehicle, and the connection unit 320 can determine the communication method
- the mobile communication module 351 operates the vehicle communication module 351 or the mobile communication module 352 to connect to the base station that has transmitted the base station signal and access the upper network via the base station,
- the processing unit 340 can provide the vehicle with a data signal transmitted by the service server.
- the processing unit 340 collects information necessary for driving through V2I communication between the vehicle and the base station from the service server, Communication can be carried out to collect more information that can not be obtained through V2I communication, thereby making it possible to carry out autonomous traveling and cooperative traveling more finely and safely.
- the processing unit 340 determines whether the service request includes at least one of position information of the vehicle, road state information, weather information,
- the data signal relating to at least one of the information and the safety information can be received from the next generation intelligent traffic system (ITS) through the first vehicle base station connected through the vehicle communication module 351 and provided to the vehicle.
- ITS intelligent traffic system
- the processing unit 340 can quickly and continuously receive a high-capacity data signal related to a black box image captured by another remote vehicle or a CCTV shot image on the road side, thereby providing a safe autonomous running / .
- connection unit 320 connects with the target vehicle communication module provided in the adjacent vehicle via the vehicle communication module 351, A data communication unit for measuring a distance between the vehicle and the adjacent vehicle through data communication with the target vehicle communication module, determining a vehicle collision risk based on the separation distance, To the vehicle and the adjacent vehicle.
- the processing unit 340 can sense the drowsy driving state of the vehicle driver through reception of the data signal regarding the motion of the adjacent vehicle, and reflect the drowsy driving state during the autonomous driving / cooperative driving.
- the processing unit 340 may collect the black box image photographed by the adjacent vehicle as a data signal and utilize it in providing the autonomous traveling / cooperative traveling service.
- connection unit 320 transmits, via the vehicle communication module 351, And the processing unit 340 transmits the input message from the vehicle to the adjacent vehicle through data communication with the target vehicle communication module or transmits the input message from the vehicle to the adjacent vehicle
- An input message from the vehicle can be provided to the vehicle as a data signal.
- the processing unit 340 may provide a group communication service through a message exchange through voice, image, and text between the vehicle and adjacent vehicles that perform cooperative traveling, thereby facilitating cooperative traveling among the vehicles.
- the processing unit 340 periodically checks the connection status with the base station even after connection with the base station of at least one of the first and second vehicle base stations and the mobile communication base station, and while the connection with the base station is maintained, Signal to the vehicle.
- various application services such as autonomous traveling and cooperative traveling can be easily performed in addition to the basic information applied to the next generation intelligent transportation system (ITS) Can be provided to the vehicle.
- ITS intelligent transportation system
- the existing vehicle base station (the second vehicle base station) with high compatibility with the existing vehicle communication ('WAVE')
- FIG. 4 is a diagram showing an example of the arrangement of a plurality of service channels in a vehicle communication service providing terminal according to an embodiment of the present invention.
- a terminal for providing a vehicle communication service can selectively receive each channel for high-capacity large-capacity vehicle communication.
- the vehicle communication service providing terminal arranges each service channel with the same structure as the existing WAVE vehicle communication, maintains the connection compatibility with the second vehicle base station installed for existing WAVE vehicle communication, By using the control channel in TDM mode, it is possible to disable simultaneous use of the control channel and the service channel.
- the vehicle communication service providing terminal transmits a maximum of six service channels ('Ch 172', 'H') to each of the regions 410 to 460 on the wide band frequencies ('5.855 GHz' to '5.925 GHz' Ch 174 ',' Ch 176 ',' Ch 180 ',' Ch 182 ', and' Ch 184 ') are set in a central region 470 on a broadband frequency not occupied by a service channel, ').
- the vehicle communication service providing terminal transmits up to six service channels ('Ch 172', 'Ch 174', 'Ch 176', 'Ch 180', 'Ch 182', and 'Ch 184' 410 to 460) can be used to transmit and receive data signals to and from the first vehicle base station.
- the vehicle communication service providing terminal may further use a control channel ('Ch 178') not used for transmission / reception of a control signal when receiving a data signal through a service channel, in order to receive a data signal.
- Channel may be used simultaneously to receive the data signal from the first vehicle base station more quickly.
- the vehicle communication service providing terminal may be a 'Ch 172' or a 'Ch 184' corresponding to the regions 410 and 460 at both ends on the wide frequency ('5.855 GHz' to 5.925 GHz ' Ch 178 corresponding to the central area 470 may be set as the service channel instead of placing the control channel in the service area.
- the vehicle communication service providing terminal can receive the control signal through the control channel in real time even during the reception of the data signal through the service channel, so that the vehicle base station can easily manage the plurality of vehicle terminals do.
- 5A is a diagram showing a structure of a physical layer (PHY) for data communication of n ⁇ n MIMO scheme in a vehicular communication service providing terminal according to an embodiment of the present invention. and the High MAC module included in the MAC structure is modified in accordance with the nxn MIMO data communication.
- PHY physical layer
- a vehicle communication service providing terminal can provide high-speed, high-capacity vehicle communication of 100 Mbps or higher in level while ensuring compatibility with the existing vehicle communication system WAVE, It is possible to provide seamless data communication in cooperation with a communication network.
- a low-MAC block 510 a MIMO modem block 520, and a low-power-consumption module 510 are connected to the vehicle communication service providing terminal, And an RF Block 530 capable of transmitting and receiving data signals of 4x4 MIMO scheme.
- a High MAC module 540 may be implemented to implement the MAC layer.
- the vehicle communication service providing terminal conforms to the WAVE standard in order to have compatibility with the existing vehicle communication network (WAVE).
- the single service channel of the existing WAVE is composed of six , 4 ⁇ 4 MIMO scheme, or 6 ⁇ 4 MIMO scheme, so that the data signal is transmitted and received at a rate of up to 24 times compared to the existing WAVE communication technique.
- the MAC layer such a 4 ⁇ 4 MIMO scheme and By implementing the function according to the six service channel configuration and correcting the high MAC, it is possible to improve the service providing speed by making the transmission and reception latency less than about 10 msec compared to the existing WAVE communication technology.
- FIG. 6 is a flowchart illustrating a procedure of a method for providing a vehicle communication service according to an embodiment of the present invention.
- the vehicle communication service providing method according to the present embodiment can be performed by the vehicle communication service providing terminal 300 described above.
- step 610 the vehicle communication service providing terminal 300 confirms that a service request is input from the vehicle.
- the vehicle communication service providing terminal 300 can confirm whether a service request related to at least one of autonomous driving and cooperative driving is input from a vehicle driving on the road.
- the vehicle communication service providing terminal 300 If the driving service request such as the autonomous driving / cooperative driving is input in step 610, the vehicle communication service providing terminal 300, in step 620, And detects a transmitted signal.
- the vehicle communication service providing terminal 300 detects a signal of a predetermined intensity or more sent from the first vehicle base station in order to attempt first vehicle communication ('WAVE +') capable of transmitting a relatively large data signal at a high speed, (&Quot; WAVE + ").
- step 630 the vehicle communication service providing terminal 300 operates the provided vehicle communication module according to the detection of the signal to connect with the first vehicle base station.
- the vehicle communication service providing terminal 300 can access the first vehicle base station using the selected wide band frequency ('5 GHz band').
- the vehicle communication service providing terminal 300 can determine the transmission / reception speed of the data signal at a higher speed in proportion to the number of available service channels at the same time, When each of the signals is detected from the base station, it is possible to preferentially request connection to the base station for the vehicle using the larger number of service channels.
- the vehicle communication service providing terminal 300 does not detect a signal from the first vehicle-use base station signal that uses n service channels at the same time, When an outgoing signal from the base station is detected, the second base station can request a connection.
- the vehicle communication service providing terminal 300 may try to access the second vehicle base station even if a mobile communication signal is detected from the mobile communication base station within the predetermined range.
- the vehicle communication service providing terminal 300 can receive the data signal by using the existing vehicle communication (WAVE) capable of high-capacity data transmission even if the speed is lower than that of the mobile communication network. If there is no second vehicle- The mobile communication network can be linked to the mobile communication network.
- WAVE existing vehicle communication
- the vehicle communication service providing terminal 300 receives the signal from the mobile communication base station within the predetermined range
- the mobile communication module detects a mobile communication signal and operates the mobile communication module to receive the data signal through the mobile communication base station seamlessly and request a connection to the mobile communication base station.
- the mobile communication service providing terminal 300 can switch the mode of the mobile communication module from the idle mode to the active mode to quickly switch between the heterogeneous communication networks.
- step 640 the vehicle communication service providing terminal 300 transmits a data signal transmitted by the service server through the plurality of service channels set between the first vehicle base station and the first vehicle base station, And provides it to the vehicle in response to the service request.
- the vehicle communication service providing terminal 300 As the vehicle communication service providing terminal 300 is connected to the first vehicle base station using the selected wide band frequency (e.g., '5 GHz' band), the vehicle communication service providing terminal 300 sets a plurality of service channels on the wide frequency band, To increase data communication speed.
- the selected wide band frequency e.g., '5 GHz' band
- the vehicle communication service providing terminal 300 can set n service channels (n is a natural number equal to or greater than 1 and 6) that can be simultaneously used, and receives the data signal in an nxn MIMO (Multiple Input Multiple Output) can do.
- nxn MIMO Multiple Input Multiple Output
- the vehicle communication service providing terminal 300 transmits a maximum communication speed of 27 Mbps in a 10 MHz bandwidth through existing WAVE communication using one of the six service channels shown in FIG. 4 Can be transmitted / received at a rate of about 100 Mbps, at least four times, using a 4 ⁇ 4 MIMO scheme or up to six service channels together.
- FIG. 7 is a flowchart illustrating a procedure of a method of providing a vehicle communication service according to another embodiment of the present invention.
- the vehicle communication service providing method according to the present embodiment can be performed by the vehicle communication service providing terminal 300 described above.
- the vehicle communication service providing terminal 300 acquires necessary information (&Quot; Next Generation Intelligent Traffic System (ITS) ") to try to communicate (step 701).
- ITS Next Generation Intelligent Traffic System
- the vehicle communication service providing terminal 300 detects a signal (hereinafter referred to as WAVE + signal) transmitted by a first vehicle base station (hereinafter referred to as WAVE + RSE) within a predetermined range from the vehicle (step 702).
- WAVE + signal a signal transmitted by a first vehicle base station (hereinafter referred to as WAVE + RSE) within a predetermined range from the vehicle (step 702).
- the vehicle communication service providing terminal 300 operates the vehicle communication module to connect with the WAVE + RSE (step 703), access the upper network via WAVE + RSE (Step 704) and accesses the service server (traffic center) (step 706) while the connection with the WAVE + RSE is maintained (step 705) and receives information necessary for autonomous / cooperative travel from the WAVE + RSE And provides it to the vehicle as a V2I service (step 707).
- the vehicle communication service providing terminal 300 selects the second vehicle base station (Hereinafter, referred to as WAVE signal) transmitted by the WAVE RSE (step 708).
- the vehicle communication service providing terminal 300 operates the vehicle communication module to connect with the WAVE RSE (step 709), access the upper network through the WAVE RSE (Step 710) and accesses to the service server (traffic center) (step 706) while the connection with the WAVE RSE is maintained (step 711), and information necessary for autonomous traveling / cooperative travel is received from the WAVE RSE And provides it to the vehicle as a V2I service (step 707).
- the vehicle communication service providing terminal 300 confirms whether it is connected to the mobile communication base station (step 712).
- the vehicle communication service providing terminal 300 detects the mobile communication signal transmitted by the mobile communication base station within the predetermined range from the vehicle (step 713).
- the mobile communication service providing terminal 300 When the mobile communication service providing terminal 300 detects the mobile communication signal in step 713, the mobile communication service providing terminal 300 operates the mobile communication module and connects to the mobile communication base station and the mobile communication service provider upper network (steps 714 to 715) (Step 706), and receives the information necessary for the autonomous traveling / cooperative traveling through the mobile communication base station and provides it to the vehicle as a V2I service (step 707).
- the mobile communication service providing terminal 300 switches the mode of the mobile communication module from the current idle mode to the active mode (step 716), and if it is connected in step 715 And can access the upper network of the mobile communication carrier.
- the vehicle communication service providing terminal 300 may return to step 702 to re-detect the WAVE + signal if the mobile communication signal is not detected in step 713.
- the vehicle communication service providing terminal 300 takes approximately 400 to 500 msec time to access when attempting to connect to the mobile communication network, (WAVE + RSE or WAVE RSE) is disconnected or if it is difficult to connect, the mode is switched to the active mode and the switching between the vehicle communication network and the mobile communication network is performed In this case, the procedure for attempting connection to the mobile communication base station is omitted, and the switching can be performed within about 10 msec.
- the vehicle communication service providing terminal 300 when the vehicle communication service providing terminal 300 is connected to the mobile communication network and receives a data signal, when the vehicle moves to a region where the vehicle can communicate with the vehicle (WAVE + or WAVE), the mobile communication service providing terminal 300 switches the mobile communication module to the idle mode
- the service through the communication network is interrupted, and the process returns to step 702 to detect a signal transmitted by the vehicle-use base station and sequentially attempt to access the WAVE + network and the WAVE network.
- the vehicle communication service providing terminal 300 first searches for the WAVE + signal from the high-speed vehicle communication (WAVE +) base station and then connects to the WAVE + communication network when the WAVE + signal exists, (WAVE) or vehicle communication service associated with autonomous or cooperative driving through the connection of a mobile communication network.
- the method according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium.
- the computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination.
- the program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software.
- Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.
- program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.
- the hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.
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Abstract
Description
Claims (16)
- 차량으로부터 서비스 요청이 입력 됨에 따라,상기 차량으로부터 선정된 범위 내에 위치한 제1 차량용 기지국에 의해 송출되는 신호를 검출하는 단계;상기 신호의 검출에 따라, 구비된 차량통신 모듈을 동작시켜, 상기 제1 차량용 기지국과 접속하는 단계; 및접속한 상기 제1 차량용 기지국과의 사이에 설정되는 복수의 서비스 채널을 통해, 서비스 서버에 의해 전송되는 데이터 신호를 상기 제1 차량용 기지국으로부터 수신하여, 상기 서비스 요청에 대한 응답으로 상기 차량에 제공하는 단계를 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,상기 접속에 따라, 상기 제1 차량용 기지국과의 사이에 n개(상기 n은 1 이상 6 이하의 자연수)의 서비스 채널을 설정하는 단계를 더 포함하고,상기 차량에 제공하는 단계는,상기 n개의 서비스 채널을 함께 사용하는 n×n MIMO(Multiple Input Multiple Output) 방식으로, 상기 제1 차량용 기지국으로부터 상기 데이터 신호를 수신하여 상기 차량에 제공하는 단계를 포함하는 차량통신 서비스 제공 방법.
- 제2항에 있어서,상기 선정된 범위 내에, 하나의 서비스 채널을 사용하는 제2 차량용 기지국이 위치하는 경우,상기 차량에 제공하는 단계는,상기 제2 차량용 기지국으로부터 상기 데이터 신호를 수신하는 통신 속도에 비해, 적어도 n배(상기 n은 1 이상 6 이하의 자연수) 이상의 통신 속도로 상기 제1 차량용 기지국으로부터 상기 데이터 신호를 수신하여 상기 차량에 제공하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제2항에 있어서,상기 차량통신 서비스 제공 방법은,상기 n개의 서비스 채널 중 어느 하나의 서비스 채널을 사용 가능한, 선정된 차량통신 프로토콜 상의 MAC 구조에 포함되는 High MAC 모듈을, 상기 n×n MIMO 방식에 따른 상기 데이터 신호의 수신이 가능해지도록 수정하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제2항에 있어서,상기 n개의 서비스 채널을 설정하는 단계는,선정된 광대역 주파수를 사용하여 상기 제1 차량용 기지국과 접속됨에 따라, 상기 광대역 주파수 상에 상기 n개의 서비스 채널을 설정하여 각 서비스 채널에 대한 대역폭을 확장하는 단계를 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,상기 제1 차량용 기지국과 제어 신호를 송수신하기 위한 컨트롤 채널을, 상기 복수의 서비스 채널이 설정된 광대역 주파수 상의 가운데 부근에 해당하는 중앙 영역에 배치하는 단계; 및상기 복수의 서비스 채널을 사용하여 상기 데이터 신호를 수신하는 동안, 상기 컨트롤 채널을 통한 상기 제어 신호의 송수신을 중단하는 동시에, 상기 컨트롤 채널을 서비스 채널로서 더 사용하여 상기 데이터 신호를 수신하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제6항에 있어서,상기 컨트롤 채널을, 상기 복수의 서비스 채널이 설정된 영역 중 적어도 하나에 재배치하고, 상기 중앙 영역을, 신규의 서비스 채널로서 설정하는 단계; 및상기 신규의 서비스 채널을 포함하여 설정된 복수의 서비스 채널을 사용하여 상기 데이터 신호를 수신하는 동안, 상기 재배치된 컨트롤 채널을 통한 상기 제어 신호의 송수신을 허용하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,일정 시간 이내에, 상기 제1 차량용 기지국 신호로부터의 상기 신호가 검출되지 않는 경우,상기 선정된 범위 내의 이동통신 기지국으로부터 수신되는 이동통신 신호를 검출하는 단계;상기 이동통신 신호의 검출에 따라, 구비된 이동통신 모듈을 동작시켜, 상기 이동통신 기지국과 접속하는 단계; 및상기 데이터 신호를, 상기 이동통신 기지국으로부터 수신하여, 상기 차량에 제공하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제8항에 있어서,상기 이동통신 기지국은, LTE 기지국, WCDMA 기지국, 및 GSM 기지국을 포함하고,상기 이동통신 신호를 검출하는 단계는,상기 LTE 기지국에 의해 송출되는 이동통신 신호가 검출되지 않으면,상기 WCDMA 기지국 또는 상기 GSM 기지국에 의해 송출되는 이동통신 신호를 검출하는 단계를 포함하는 차량통신 서비스 제공 방법.
- 제8항에 있어서,상기 일정 시간 이내에, n개(상기 n은 1 이상 6 이하의 자연수)의 서비스 채널을 함께 사용하는 상기 제1 차량용 기지국 신호로부터의 상기 신호가 검출되지 않고, 상기 n개의 서비스 채널 중 어느 하나의 서비스 채널을 사용하는 제2 차량용 기지국으로부터의 송출 신호가 검출되는 경우,상기 이동통신 신호가 검출되더라도, 상기 제2 차량용 기지국과 접속을 시도하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제8항에 있어서,상기 이동통신 기지국을 통한 상기 데이터 신호의 수신 중에, 상기 제1 차량용 기지국으로부터의 상기 신호가 검출되는 경우,상기 이동통신 기지국으로부터의 상기 데이터 신호의 수신을 중지하고, 상기 이동통신 모듈을, 상기 이동통신 기지국과의 접속 상태를 유지하는 유휴 모드로 모드 전환하는 단계; 및상기 차량통신 모듈을 통해 접속되는 상기 제1 차량용 기지국으로부터, 상기 데이터 신호를 수신하여 상기 차량에 제공하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제11항에 있어서,상기 제1 차량용 기지국과의 접속이 해제되는 경우,상기 이동통신 모듈을, 상기 유휴 모드에서 활성 모드로 모드 전환하여, 상기 이동통신 기지국을 통한 상기 데이터 신호의 수신을 재개하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,상기 서비스 요청이, 자율주행 및 협력주행 중 적어도 하나의 주행에 관련되는 경우,상기 차량에 제공하는 단계는,상기 주행 시 필요한, 상기 차량의 위치 정보, 도로 상황 정보, 날씨 정보, 경로 정보, 교통 정보 및 안전 정보 중 적어도 하나에 관련된 데이터 신호를, 상기 제1 차량용 기지국을 통해, 차세대 지능형 교통시스템(ITS)으로부터 수신하여, 상기 차량에 제공하는 단계를 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,상기 서비스 요청이, '자율주행'에 관련되는 경우,상기 차량통신 모듈을 통해, 상기 차량과 인접한 인접 차량에 구비된 타겟 차량통신 모듈과 접속하는 단계; 및상기 타겟 차량통신 모듈과의 데이터 통신을 통해, 상기 차량과 상기 인접 차량 간의 이격 거리를 측정하고, 상기 이격 거리를 근거로 차량 추돌 위험을 판단하여, 상기 차량 추돌 위험을 경고하는 데이터 신호를, 상기 차량 및 상기 인접 차량에 제공하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 제1항에 있어서,상기 서비스 요청이, 상기 차량과 동일 그룹으로 지정된 적어도 하나의 인접 차량과의 '협력주행'에 관련되는 경우,상기 차량통신 모듈을 통해, 상기 동일 그룹 내의 각 인접 차량에 구비된 타겟 차량통신 모듈과 접속하는 단계; 및상기 타겟 차량통신 모듈과의 데이터 통신을 통해,상기 차량으로부터의 입력 메시지를 데이터 신호로서 상기 각 인접 차량에 전송하거나, 또는 상기 각 인접 차량으로부터의 입력 메시지를 데이터 신호로서 상기 차량에 제공하는 단계를 더 포함하는 차량통신 서비스 제공 방법.
- 차량으로부터 서비스 요청이 입력 됨에 따라,상기 차량으로부터 선정된 범위 내에 위치한 제1 차량용 기지국에 의해 송출되는 신호를 검출하는 검출부;상기 신호의 검출에 따라, 구비된 차량통신 모듈을 동작시켜, 상기 제1 차량용 기지국과 접속하는 접속부; 및접속한 상기 제1 차량용 기지국과의 사이에 설정되는 복수의 서비스 채널을 통해, 서비스 서버에 의해 전송되는 데이터 신호를 상기 제1 차량용 기지국으로부터 수신하여, 상기 서비스 요청에 대한 응답으로 상기 차량에 제공하는 처리부를 포함하는 차량통신 서비스 제공 단말.
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