On-demand communication apparatus supporting v2x standard, on-demand communication method, and system including same

Abstract

An on-demand communication apparatus supporting a vehicle-to-everything (V2X) standard, according to the present invention, may comprise: a GPS reception unit that collects location information about a vehicle on the basis of GPS; an on-demand processing unit that configures, on the basis of the location information about the vehicle, a V2X communication standard according to an area where the vehicle is currently located; and a V2X communication unit that performs V2X communication according to the configured V2X communication standard.

Description

On-demand communication device supporting V2X standard, on-demand communication method and system including same

[0001] The present invention relates to an on-demand communication device supporting at least one V2X communication standard, an on-demand communication method, and a system including the same.

[0002] Countries like Korea, the United States, and Europe have been developing their own V2X (Vehicle to Everything) communication methods regionally or nationally, and there is no single, global communication standard. As a result, different communication standards corresponding to V2X communication technologies and products exist in each country or region. In other words, the hardware and software of V2X vehicle terminals (On Board Units, OBUs) are being developed according to different V2X communication standards in each country or region. Furthermore, V2X vehicle terminals cannot be used when vehicles travel between countries or regions with different V2X communication standards.

[0003] For this reason, when driving in a country other than the designated country (or region), the vehicle owner (driver) must change the V2X vehicle terminal to match the region (or country). This can be costly for the vehicle owner, and it can also cause the information stored in the existing V2X vehicle terminal to become unusable.

[0004] To address this, on-demand communication technology supporting at least one V2X standard is required.

[0005] The present invention is intended to solve the above-described problem, and an object of the present invention is to provide an on-demand communication device, an on-demand communication method, and an on-demand communication system including the same that support V2X standards available in various regions or countries.

[0006] An on-demand communication device according to the present invention may include a GPS receiving unit that collects location information of a vehicle based on GPS, an on-demand processing unit that sets a V2X (Vehicle to Everything) communication standard according to an area where the vehicle is currently located based on the location information of the vehicle, and a V2X communication unit that performs V2X communication according to the set V2X communication standard.

[0007] The on-demand processing unit may include a region determination unit that assigns region identification information based on the location information of the vehicle, a standard matching unit that matches communication standard identification information based on the region identification information, and a communication setting unit that sets a V2X communication protocol and a V2X communication frequency band based on the region identification information and the communication standard identification information.

[0008] An on-demand communication system according to the present invention may include a roadside base station supporting a regional V2X communication standard and a V2X vehicle terminal attached to a vehicle and communicating with the roadside base station. The V2X vehicle terminal may include a GPS receiving unit that collects location information of the vehicle based on GPS, an on-demand processing unit that sets a V2X (Vehicle to Everything) communication standard according to a region in which the vehicle is currently located based on the location information of the vehicle, and a V2X communication unit that performs V2X communication according to the set V2X communication standard.

[0009] An on-demand communication method according to the present invention may include a step of collecting location information of a vehicle based on GPS, a step of allocating regional identification information based on the location information of the vehicle, a step of matching communication standard identification information based on the regional identification information, a step of setting a V2X communication protocol and a V2X communication frequency band based on the regional identification information and the communication standard identification information, and a step of performing V2X communication based on the setting result.

[0010] The on-demand communication device according to the present invention can use one V2X vehicle terminal (OBU) regardless of region or country.

[0011] And on-demand communication devices can reduce the cost and time associated with replacing V2X vehicle unit (OBU).

[0012] FIG. 1 is a drawing illustrating an on-demand communication system including an on-demand communication device according to an embodiment of the present invention.

[0013] Figure 2 is a block diagram of an on-demand communication device according to an embodiment of the present invention.

[0014] FIG. 3 is a block diagram of an on-demand communication device according to another embodiment of the present invention.

[0015] FIG. 4a and FIG. 4b are examples of the operation of an on-demand communication device according to an embodiment of the present invention.

[0016] FIG. 5 is a flowchart of an operation method of an on-demand communication device according to an embodiment of the present invention.

[0017] FIG. 6 is a flowchart of another operation method of an on-demand communication device according to an embodiment of the present invention.

[0018] Hereinafter, embodiments of the present invention will be described clearly and in detail to the extent that a person having ordinary skill in the art can easily practice the present invention.

[0019] FIG. 1 is a drawing illustrating an on-demand communication system (1) including an on-demand communication device (10) according to an embodiment of the present invention.

[0020] Referring to FIG. 1, the on-demand communication system (1) includes a roadside base station (RSU, Road Side Unit) and a V2X vehicle terminal (OBU) attached to a vehicle (V, Vehicle).

[0021] Embodiments of the present invention may be included in electronic devices and systems such as terminals, base stations, etc. that support wireless communication between vehicles and networks (V2N, Vehicle to Network), wireless communication between vehicles and infrastructure (V2I: Vehicle to Infrastructure), wireless communication between vehicles (V2V: Vehicle to Vehicle), and wireless communication between vehicles and pedestrians (V2P: Vehicle to Pedestrian), or may be implemented as terminals, base stations, etc.

[0022] At least one roadside base station (RSU1, RSU2) can support regional or national V2X communication standards. For example, the V2X communication standards of roadside base stations RSU1 and RSU2 may use different communication standards. Accordingly, the roadside base stations (RSU1, RSU2) can transmit and receive various information and communicate with the V2X vehicle terminal (OBU).

[0023] The V2X vehicle terminal (OBU) is attached to the vehicles (V, V') and can communicate with each roadside base station (RSU1, RSU2). For example, the V2X vehicle terminal (OBU) according to the present invention can check the GPS location information of the vehicles (V, V') based on a border line (BL) or a regional boundary line (BL). In addition, since the V2X communication standards of the roadside base station RSU1 and the roadside base station RSU2 are different, the V2X vehicle terminal (OBU) can perform V2X communication in accordance with the communication standard of each roadside base station (RSU1, RSU2).

[0024] Here, on-demand refers to economic activities that provide customized products and services instantly to meet consumer demand through information and communication technology (ICT) infrastructure, including mobile devices. A V2X vehicle unit (OBU) may include an on-demand communication device that provides on-demand services.

[0025] A V2X vehicle unit (OBU) including an on-demand communication device is described in detail later in the description of FIGS. 2 and 3.

[0026] FIG. 2 is a block diagram of an on-demand communication device according to an embodiment of the present invention, and FIGS. 4a and 4b are examples of the operation of an on-demand communication device (10, 10_1) according to an embodiment of the present invention.

[0027] Referring to FIG. 2, an on-demand communication device (10) included in a V2X vehicle terminal (OBU) includes a GPS receiver (100), an on-demand processing unit (200), and a V2X communication unit (300).

[0028] The GPS receiver (100) can collect vehicle location information based on the GPS (Global Positioning System). Here, the location information may include location information of the country or region where the vehicle is located. The period at which the GPS receiver (100) receives the vehicle location information may be 100 ms, but is not limited thereto. In addition, the GPS receiver (100) can transmit the vehicle location information to a roadside base station (RSU) via the V2X communication unit (300). The period at which the vehicle location information is transmitted to the roadside base station (RSU) may be 1 s, but is not limited thereto.

[0029] GPS-based location information can be subject to errors due to factors such as the ionosphere, water vapor in the troposphere, multiple propagation paths, and inaccurate satellite positioning. For these reasons, location information can also be inaccurate when a vehicle is positioned near a national border or regional boundary. In other words, the inaccurate location coordinates of the vehicle may prevent changes to the V2X communication standard corresponding to the region or country. The on-demand communication device (10) can resolve the aforementioned problems caused by location information errors through the on-demand processing unit (200).

[0030] The on-demand processing unit (200) can change the V2X communication standard based on the vehicle's location information collected by the GPS receiving unit (100). That is, the on-demand processing unit (200) can change the V2X communication standard depending on the region or country in which the vehicle is currently located.

[0031] The on-demand processing unit (200) includes a local judgment unit (210), a standard matching unit (220), and a communication setting unit (230).

[0032] The region determination unit (210) can assign region identification information based on the vehicle's GPS location information. Here, the region identification information may include, but is not limited to, a two-digit country code. For example, if the vehicle's current location is Korea, the region determination unit (210) can assign the country code KR as region identification information. Alternatively, if the vehicle's current location is the United Kingdom, the region determination unit (210) can assign the country code GB, if the vehicle's current location is China, the country code CN, and if the vehicle's current location is the United States, the country code US as region identification information.

[0033] Referring to FIGS. 4a and 4b, it is assumed that a vehicle (V) drives in a first region (C1) and then the vehicle (V') moves to a second region (C2). The on-demand communication device (10) of the vehicle (V) driving in the first region (C1) performs communication in accordance with the V2X standard communication of the first region (C1). Thereafter, the vehicles (V', V'') can drive in the second region (C2) by passing through the boundary line (BL) between the first region (C1) and the second region (C2) as illustrated in FIGS. 4a and 4b. At this time, if the vehicle (V') is located at the boundary line (BL) between the first region (C1) and the second region (C2), an error may occur in the region determination unit (210) assigning region identification information due to an error in the GPS location information.

[0034] The region determination unit (210) can receive location information about the boundary line (BL) of the first region (C1) and the second region (C2). For example, the region determination unit (210) can receive location information about the boundary line (BL) of the first region (C1) and the second region (C2) from a road base station (RSU). Here, the location information about the boundary line (BL) of the first region (C1) and the second region (C2) can be GPS location coordinates.

[0035] And the local judgment unit (210) can receive the location information of the vehicle (V) from the GPS receiver (100). For example, the local judgment unit (210) can receive the GPS location coordinates of the vehicle (V). The location information of the vehicle (V) may have an error due to the characteristics of the GPS location coordinates, and this error value may be referred to as the maximum error value (C3). And the local judgment unit (210) determines the threshold value (D) of the boundary line (BL) based on the maximum error value (C3). C ) can be calculated. The critical value (D C ) can be the maximum error value (C3) plus the margin. That is, the critical value can be T(x)=A(x)+B(x). Here, x can be the location coordinate of the boundary line (BL), A(x) can be the maximum error value, and B(x) can be the margin.

[0036] The maximum error value (C3) may vary depending on the preset error level of the GPS receiver (100). For example, the GPS receiver (100) may be a GPS receiver mounted on a vehicle (V) or may receive GPS location coordinates of the vehicle (V) from the GPS receiver. The performance and correction technology of the GPS receiver mounted on the vehicle (V) may vary depending on the product. Accordingly, the error range of the location coordinates measured by the GPS receiver may also vary. Based on the preset error range of the GPS receiver, i.e., the GPS receiver (100), the maximum error value (C3) may be several millimeters or several meters. More specifically, the maximum error value (C3) may have different values ​​depending on the environment of a country or region. Alternatively, the maximum error value (C3) may be preset to different values ​​depending on the country or region through testing under various conditions.

[0037] And the margin can be a value obtained by multiplying the maximum error value (C3) by a predetermined ratio (z), that is, B(x) = A(x) X z. Therefore, as the maximum error value (C3) becomes more precise, the margin can also be set more precisely. Here, the lower the size of the predetermined ratio z, the more precise the precision can be, but the less stable the stability can be. On the other hand, the higher the size of the predetermined ratio z, the more precise the stability can be, but the less stable the precision can be.

[0038] The local judgment unit (210) can calculate the distance (D) between the vehicle (V) and the boundary line (BL). The local judgment unit (210) determines whether the distance (D) between the vehicle (V) and the boundary line (BL) is greater than the threshold value (D C ) can be judged as being less than or greater than the limit, and regional identification information can be assigned based on the judgment result.

[0039] For example, as shown in Fig. 4a, when a vehicle (V') is located at the boundary line (BL) of a second region (C2) in a first region (C1), the region determination unit (210) determines that the distance (D) between the vehicle (V') and the boundary line (BL) is greater than the threshold value (D C ) can be determined to be less than or equal to the first region (C1). Accordingly, the region determination unit (210) can maintain region identification information corresponding to the first region (C1). On the other hand, as shown in FIG. 4b, when the vehicle (V') is driving in the second region (C2), the region determination unit (210) determines that the distance (D) between the vehicle (V'') and the boundary line (BL) is less than or equal to the threshold value (D C ) can be judged to be exceeded. Accordingly, the region judgment unit (210) can assign region identification information corresponding to the second region (C2). That is, the on-demand communication device (10) of the vehicle (V'') driving in the second region (C2) can perform communication in accordance with the V2X standard communication of the second region (C2).

[0040] For another example, when a vehicle (V) moves from a second area (C2) to a first area (C1), the area determination unit (210) determines the distance (D) between the vehicle (V') and the boundary line (BL) and the threshold value (D C By comparing the '), the regional identification information of the second region (C2) can be changed and assigned to the regional identification information of the first region (C1).

[0041] The standard matching unit (220) can match communication standard identification information based on regional identification information. Here, the communication standard identification information may include, but is not limited to, a national communication standard code. For example, the standard matching unit (220) can match a national communication standard code based on regional identification information received from the regional determination unit (210). If the country code, which is regional identification information assigned to the vehicle, is KR, the standard matching unit (220) can match 0X01, which is a Korean communication standard code. Alternatively, if the country code assigned to the vehicle is GB (United Kingdom), the standard matching unit (220) can match 0X02, which is a European communication standard code. Alternatively, if the country code assigned to the vehicle is US, the standard matching unit (220) can match 0X03, which is a US communication standard code. Alternatively, if the country code assigned to the vehicle is DE (Germany), the standard matching unit (220) can match 0X02, which is a European communication standard code. For another example, if the regional determination unit (210) changes the country code, which is regional identification information, from GB to DE and assigns it, the standard matching unit (220) can maintain the European communication standard code 0X02. In the case where the vehicle moves through multiple European countries, the standard matching unit (220) can avoid performing unnecessary matching operations by maintaining the European communication standard code 0X02.

[0042] The communication setting unit (230) can set the V2X communication protocol and the V2X communication frequency band based on the regional identification information and the communication standard identification information. For example, the communication setting unit (230) can set the V2X communication protocol and the V2X communication frequency band according to the region or country based on the information received from the standard matching unit (220). When a vehicle is driven in China and then moves to Europe, the communication setting unit (230) can change the V2X communication protocol and the V2X communication frequency band that are set for China to match the European communication standard. Alternatively, the communication setting unit (230) can transmit a communication control signal to the V2X communication unit (300) so that it changes the V2X communication unit (300).

[0043] The communication setting unit (230) can transmit the set V2X communication protocol and V2X communication frequency band or communication control signal to the V2X communication unit (300).

[0044] The V2X communication unit (300) can perform V2X communication with a roadside base station according to the V2X communication standard changed by the on-demand processing unit (200).

[0045] The V2X communication unit (300) may include DSRC (Dedicated Short Range Communication), C-V2X (Cellular Vehicle to Everything), cellular communication, and Wave communication methods that support communication standards of various countries. However, this is an example and is not limited thereto.

[0046] As described above, the on-demand communication device (10) according to the present invention can use a single V2X vehicle terminal regardless of region or country. That is, the on-demand communication device (10) can convert the communication standard in a single V2X vehicle terminal according to the region or country. In addition, the on-demand communication device (10) can reduce the cost and time associated with replacing a V2X vehicle terminal.

[0047] Since Fig. 3 is another embodiment of the on-demand communication device (10) of Fig. 2, a description of a configuration similar or identical to the on-demand communication device (10) of Fig. 2 is omitted.

[0048] Referring to FIG. 3, an on-demand communication device (10_1) included in a V2X vehicle terminal (OBU) includes a GPS receiver (100), an on-demand processing unit (200), a V2X communication unit (300), and a library management unit (400).

[0049] The GPS receiver (100), on-demand processing unit (200), and V2X communication unit (300) may be similar to or identical to the description of the on-demand communication device (10) of FIG. 2.

[0050] The library management unit (400) can store the V2X communication protocol and the V2X communication frequency band corresponding to the regional identification information and the communication standard identification information.

[0051] The library management unit (400) can extract the communication standard of the V2X communication unit (300) based on the stored information according to the result set by the communication setting unit (230). In other words, the library management unit (400) can extract information on the V2X communication protocol and the V2X communication frequency band to change the communication standard of the V2X communication unit (300) according to the region or country where the vehicle is located. For example, the library management unit (400) can set the regional identification information of Korea to 'Regional Standard 1', and the communication standard identification information can be 'ID 0X01'. Alternatively, the regional identification information of a European country can be set to 'Regional Standard 2', and the communication standard identification information can be 'ID 0X02'. In this way, the library management unit (400) can store a library of regional identification information and communication standard identification information of various countries or regions. Thereafter, the library management unit (400) can transmit software for the corresponding communication standard to the V2X communication unit (300).

[0052] As described above, the on-demand communication device (10_1) according to the present invention can use a single V2X vehicle terminal regardless of region or country. That is, the on-demand communication device (10) can store communication standards of multiple regions or countries, and can convert the communication standard according to the region or country in a single V2X vehicle terminal. In addition, the on-demand communication device (10) can reduce the cost and time associated with replacing a V2X vehicle terminal.

[0053]

[0054] FIG. 5 is a flowchart of an operation method of the on-demand communication device (10) of FIG. 2 according to an embodiment of the present invention.

[0055] Referring to FIG. 5, at step S1100, vehicle location information can be collected based on GPS. For example, the GPS receiver (100) of FIG. 2 can collect vehicle location information based on GPS.

[0056] At step S1200, region identification information may be determined based on the vehicle's location information. For example, the region determination unit (210) of FIG. 2 may determine region identification information based on the vehicle's location information.

[0057] At step S1300, it may be determined whether regional identification information has changed. For example, the regional determination unit (210) may determine whether the current regional identification information has changed and different regional identification information has been assigned.

[0058] If it is determined that the local identification information has not changed, the V2X communication currently being performed can be performed in step S1800. For example, the V2X communication unit (300) can continue performing the V2X communication currently being performed.

[0059] On the other hand, if it is determined that the local identification information has changed, the current V2X communication may be interrupted at step S1400. For example, the V2X communication unit (300) of FIG. 2 may interrupt the current V2X communication.

[0060] At step S1500, communication standard identification information may be matched based on the changed regional identification information. For example, the standard matching unit (220) of FIG. 2 may match communication standard identification information based on the changed regional identification information.

[0061] At step S1600, a V2X communication protocol and a V2X communication frequency band can be extracted from the library based on the regional identification information and communication standard identification information. For example, based on the regional identification information and communication standard identification information of FIG. 3, the library management unit (400) can extract a V2X communication protocol and a V2X communication frequency band.

[0062] At step S1700, the extracted V2X communication protocol and V2X communication frequency band can be set. For example, the communication setting unit (230) of FIG. 2 can set the extracted V2X communication protocol and V2X communication frequency band.

[0063] At step S1800, V2X communication can be performed according to the changed V2X communication standard. For example, the V2X communication unit (300) can perform V2X communication according to the changed V2X communication standard.

[0064] Fig. 6 is another exemplary flowchart for the operating method of the on-demand communication device (10) of Fig. 5. Here, it is assumed that a vehicle equipped with the on-demand communication device (10) moves from a first region to a second region.

[0065] At step S2100, vehicle location information can be collected based on GPS. For example, the GPS receiver (100) of FIG. 2 can collect vehicle location information based on GPS.

[0066] At step S2200, location information regarding the boundary between the first and second regions can be received. For example, the GPS receiver (100) can receive location information regarding the boundary between the first and second regions from a roadside base station (RSU).

[0067] At step S2300, it can be determined whether the vehicle's location information crosses the boundary between the first and second regions. For example, the region determination unit (210) of FIG. 2 can determine whether the vehicle's location information crosses the boundary between the first and second regions.

[0068] If it is determined that the vehicle does not cross the boundary between Region 1 and Region 2, region identification information corresponding to Region 1 may be maintained at step S2600. For example, the region identification unit (210) may maintain region identification information corresponding to Region 1.

[0069] On the other hand, if it is determined that the vehicle has passed the boundary between Region 1 and Region 2, a threshold value may be calculated based on the maximum error value for the vehicle's location information at step S2400. For example, the region determination unit (210) may calculate a threshold value based on the maximum error value for the vehicle's location information.

[0070] At step S2500, it may be determined whether the distance between the vehicle and the boundary line is greater than a threshold value. For example, the local determination unit (210) may determine whether the distance between the vehicle and the boundary line is greater than a threshold value.

[0071] If it is determined that the distance between the vehicle and the boundary line is less than a threshold value, region identification information corresponding to the first region may be maintained at step S2600. For example, the region determination unit (210) may maintain region identification information corresponding to the first region.

[0072] On the other hand, if the distance between the vehicle and the boundary line is determined to be greater than a threshold value, region identification information corresponding to the second region may be assigned in step S2700. For example, the region determination unit (210) may assign region identification information corresponding to the second region.

[0073] At step S2800, communication standard identification information may be matched based on regional identification information. For example, the standard matching unit (220) of FIG. 2 may match communication standard identification information based on changed regional identification information.

[0074] At step S2900, a V2X communication protocol and a V2X communication frequency band may be set based on regional identification information and communication standard identification information. For example, the communication setting unit (230) of FIG. 2 may set a V2X communication protocol and a V2X communication frequency band based on regional identification information and communication standard identification information.

[0075] At step S3000, V2X communication can be performed according to the V2X communication standard. For example, the V2X communication unit (300) can perform V2X communication according to the changed V2X communication standard.

[0076] As described above, the on-demand communication device (10) according to the present invention can use a single V2X vehicle terminal regardless of region or country. That is, the on-demand communication device (10) can convert the communication standard in a single V2X vehicle terminal according to the region or country. In addition, the on-demand communication device (10) can reduce the cost and time associated with replacing a V2X vehicle terminal.

[0077]

[0078] The above description provides specific examples for implementing the present invention. In addition to the above-described embodiments, the present invention may also include embodiments that are simply designed or easily modified. Furthermore, the present invention may also encompass techniques that can be easily modified and implemented using the embodiments. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be defined not only by the claims set forth below but also by equivalents thereof.

Claims

1. A GPS receiver that collects vehicle location information based on GPS; An on-demand processing unit that sets a V2X (Vehicle to Everything) communication standard based on the location information of the vehicle according to the area where the vehicle is currently located; and Includes a V2X communication unit that performs V2X communication according to the established V2X communication standard, The above on-demand processing unit, A region determination unit that assigns region identification information based on the location information of the vehicle; A standard matching unit that matches communication standard identification information based on the above regional identification information; and It includes a communication setting unit that sets a V2X communication protocol and a V2X communication frequency band based on the above regional identification information and the above communication standard identification information, The above regional judgement board, Receive location information on the boundary between Region 1 and Region 2 and location information of the vehicle; The threshold value of the boundary is calculated based on the maximum error value for the position information of the vehicle, wherein the maximum error value has different values ​​depending on the environment of the country or region; Calculate the distance between the above vehicle and the above boundary, Determine whether the distance between the vehicle and the boundary is less than or greater than the threshold value, An on-demand communication device that assigns the above-mentioned regional identification information based on the judgment result.

2. In paragraph 1, An on-demand communication device further comprising a library management unit storing the V2X communication protocol and the V2X communication frequency band corresponding to the regional identification information and the communication standard identification information.

3. In paragraph 1, The above regional identification information includes a country code, an on-demand communication device.

4. In paragraph 1, The above communication standard identification information includes a national communication standard code, an on-demand communication device.

5. In paragraph 1, The above threshold value is the value obtained by adding the margin to the above maximum error value. An on-demand communication device, wherein the above margin is a value obtained by multiplying the above maximum error value by a predetermined ratio.

6. In paragraph 1, An on-demand communication device, wherein the above maximum error value changes according to the preset error level of the GPS receiver.

7. In paragraph 1, The above regional judgement board, When the above vehicle moves from the first area to the second area, If the distance between the vehicle and the boundary is less than or equal to the threshold value, the region identification information corresponding to the first region is maintained, An on-demand communication device that allocates region identification information corresponding to the second region if the distance between the vehicle and the boundary exceeds the threshold value.

8. Roadside base stations supporting regional V2X (Vehicle to Everything) communication standards; and Including a V2X vehicle terminal attached to a vehicle and communicating with the roadside base station, The above V2X vehicle terminal is, A GPS receiver that collects location information of the vehicle based on GPS; An on-demand processing unit that sets a V2X communication standard according to the area where the vehicle is currently located based on the location information of the vehicle; and Includes a V2X communication unit that performs V2X communication according to the established V2X communication standard, The above on-demand processing unit, A region determination unit that assigns region identification information based on the location information of the vehicle; A standard matching unit that matches communication standard identification information based on the above regional identification information; and It includes a communication setting unit that sets a V2X communication protocol and a V2X communication frequency band based on the above regional identification information and the above communication standard identification information, The above regional judgement board, Receive location information on the boundary between Region 1 and Region 2 and location information of the vehicle; The threshold value of the boundary is calculated based on the maximum error value for the position information of the vehicle, wherein the maximum error value has different values ​​depending on the environment of the country or region; Calculate the distance between the above vehicle and the above boundary, Determine whether the distance between the vehicle and the boundary is less than or greater than the threshold value, An on-demand communication system that assigns the above-mentioned regional identification information based on the judgment result.

9. Step of collecting vehicle location information based on GPS; A step of assigning regional identification information based on the location information of the vehicle; A step of matching communication standard identification information based on the above regional identification information; A step of setting a V2X (Vehicle to Everything) communication protocol and a V2X communication frequency band based on the above regional identification information and the above communication standard identification information; and a step of performing V2X communication according to the setting result, The step of assigning the above regional identification information is: Step for receiving location information on the border between Region 1 and Region 2 A step of calculating a threshold value of the boundary based on a maximum error value for the position information of the vehicle, wherein the maximum error value has different values ​​depending on the environment of the country or region; A step of calculating the distance between the vehicle and the boundary; a step of determining whether the distance between the vehicle and the boundary is less than or greater than the threshold value; and An on-demand communication method further comprising a step of allocating the region identification information based on the judgment result.

10. In paragraph 9, The above threshold value is a range that adds a margin to the above maximum error value, An on-demand communication method, wherein the above margin is a value obtained by multiplying the above maximum error value by a predetermined ratio.

11. In paragraph 9, The step of assigning the above regional identification information is: When the above vehicle moves from the first area to the second area, If the distance between the vehicle and the boundary is less than or equal to the threshold value, the region identification information corresponding to the first region is maintained, An on-demand communication method, wherein if the distance between the vehicle and the boundary exceeds the threshold value, the region identification information corresponding to the second region is allocated.

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