Method and system for dynamically acquiring local egress IP in Internet of Vehicles

Abstract

A method and system for dynamically obtaining a local exit IP in a vehicle network, wherein the system includes an AAA server and a NAT server, wherein the AAA server stores different intranet segments divided according to different regions, and the NAT server pre-associates exit IPs of different regions; when a vehicle user device accesses the Internet, it reports network access information to the AAA server through a base station, and the AAA server determines the current network access area of ​​the vehicle user device based on the network access information, and selects an intranet IP from the intranet segment corresponding to the network access area and assigns it to the vehicle user device; when the vehicle user device accesses the Internet, it uses the intranet IP to send network data to the NAT server, and the NAT server receives the network data and converts the intranet IP into an exit IP of the region corresponding to the intranet segment to which it belongs, so that the vehicle user device obtains the local exit IP of its network access area and can obtain local information. The technical solution of the present application does not rely on the routing configuration of the operator, and will not be affected even if the operator is changed.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a method and system for dynamically acquiring a local export IP in a vehicle network. Background Art

[0002] At present, traditional cars are transforming into smart connected cars. For smart connected cars, the connection function is the cornerstone of their intelligence. Some smart connected cars produced by automobile manufacturers will be exported to many different countries around the world and used in different countries. In order to enable smart connected cars to be connected to the Internet at the place of use, the current manufacturers' connection solutions usually purchase SIM cards from operators in the target area and use them in the target area. However, due to the large number of countries where cars are exported, and considering the actual situation of production and solutions, manufacturers usually use the SIM card of one operator to cover the entire region, such as using KLM to cover the entire European region. However, KLM's code IP export is an ISP supplier in the Netherlands, which will cause all devices using KLM SIM cards to obtain the export IP of the Netherlands.

[0003] In the Internet of Vehicles scenario, this will cause problems with the push information of some car applications. For example, when a French person uses a car in France, because the IP address of the car is a Dutch IP address, the application server will push information in the Dutch region and in Dutch to the car, resulting in a very poor user experience. Summary of the invention

[0004] The main technical problem solved by the present invention is how to obtain the local export IP address of the vehicle in the vehicle networking scenario.

[0005] According to the first aspect, an embodiment provides a method for dynamically obtaining a local egress IP in a connected vehicle network, including: The vehicle user equipment reports the network access information to the AAA server through the base station, wherein the AAA server stores different intranet segments divided according to different regions, and each region has a corresponding intranet segment; The AAA server receives the network access information, and determines the current network access area of ​​the vehicle user equipment according to the network access information, where the network access area is the area where the vehicle user equipment is located; The AAA server selects an intranet IP from the intranet segment corresponding to the network access area and assigns it to the vehicle user equipment; The vehicle user equipment uses the intranet IP to send network data to the NAT server, wherein the NAT server is pre-associated with the exit IPs of the different areas; The NAT server receives the network data and converts the intranet IP into an exit IP of an area corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize communication between the vehicle user equipment and the public network.

[0006] In some embodiments, the vehicle user equipment uses the intranet IP to send network data to the NAT server, including: The vehicle user equipment uses the intranet IP to send network data to the first VPN gateway; The first VPN gateway receives the network data and forwards the network data to the NAT server.

[0007] In some embodiments, there are multiple NAT servers, each of which is associated with an egress IP of a region; the first VPN gateway forwards the network data to the NAT server, including: The first VPN gateway forwards the network data to the NAT server associated with the egress IP of the area corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

[0008] In some embodiments, the vehicle user equipment uses the intranet IP to send network data to the first VPN gateway through the base station and the packet data network gateway.

[0009] In some embodiments, the vehicle user equipment reports the network access information to the AAA server through the base station, including: the vehicle user equipment sends the network access information to the base station, and the base station adds its own location information to the network access information and then sends the network access information to the AAA server; The AAA server determines the current network access area of ​​the vehicle user equipment according to the network access information, including: the AAA server determines the current network access area of ​​the vehicle user equipment according to the location information of the base station in the network access information.

[0010] In some embodiments, when the vehicle user equipment enters a cell covered by another base station from a cell covered by the base station, the vehicle user equipment reports the network access information to the AAA server again through the other base station.

[0011] According to the second aspect, an embodiment provides a system for dynamically acquiring a local egress IP in a connected vehicle network, including: An AAA server, wherein the AAA server stores different intranet segments divided according to different regions, and each region has a corresponding intranet segment; the AAA server is used to receive network access information reported by a vehicle user device through a base station, determine the current network access region of the vehicle user device according to the network access information, and select an intranet IP from the intranet segment corresponding to the network access region and allocate it to the vehicle user device, wherein the network access region is the region where the vehicle user device is located; A NAT server, wherein the NAT server is pre-associated with the exit IPs of the different areas; the NAT server is used to receive the network data sent by the vehicle user device using the intranet IP, and convert the intranet IP into the exit IP of the area corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize the communication between the vehicle user device and the public network.

[0012] In some embodiments, the system further includes a first VPN gateway, wherein the first VPN gateway is configured to receive network data sent by the vehicle user device using the intranet IP, and forward the network data to the NAT server.

[0013] In some embodiments, there are multiple NAT servers, each of which is associated with an egress IP of a region; the first VPN gateway is specifically used to forward the network data to the NAT server associated with the egress IP of the region corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

[0014] In some embodiments, when the vehicle user equipment reports the network access information through the base station, the network access information is sent to the base station, and the base station adds its own location information to the network access information and then sends the network access information to the AAA server; The AAA server is specifically used to determine the current network access area of ​​the vehicle user equipment according to the location information of the base station in the network access information.

[0015] According to the method and system for dynamically obtaining the local exit IP in the Internet of Vehicles of the above-mentioned embodiment, different intranet segments are divided according to different regions on the AAA server, and the exit IPs of different regions are pre-associated on the NAT server; when the vehicle user device accesses the Internet, the network access information is reported to the AAA server through the base station, and the AAA server receives the network access information, determines the current network access area of ​​the vehicle user device according to the network access information, and selects an intranet IP from the intranet segment corresponding to the network access area and assigns it to the vehicle user device; when the vehicle user device accesses the Internet, it uses the intranet IP to send network data to the NAT server, and the NAT server receives the network data and converts the intranet IP into the exit IP of the region corresponding to the intranet segment to which it belongs, so that the vehicle user device obtains the local exit IP of its network access area and can obtain local information. The technical solution of the present application does not rely on the routing configuration of the operator and will not be affected even if the operator is changed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The following is an architectural diagram of a technical solution for realizing local IP export in the prior art; Figure 2 A flowchart of a method for dynamically obtaining a local egress IP in a connected vehicle network in some embodiments; Figure 3 A communication interaction diagram of each end in a method for dynamically obtaining a local egress IP in an Internet of Vehicles in some embodiments; Figure 4 A system architecture diagram of a method for dynamically acquiring a local egress IP in an Internet of Vehicles in some embodiments; Figure 5 A schematic diagram of the structure of a system for dynamically acquiring a local egress IP in an Internet of Vehicles in some embodiments; Figure 6 A schematic diagram of the structure of a system for dynamically acquiring a local export IP in a connected vehicle network in some other embodiments. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0018] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0019] The serial numbers assigned to the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "linking" mentioned in this application, unless otherwise specified, include direct and indirect connections (links); the "send", "send to", and "send to..." mentioned in this application, unless otherwise specified, include direct and indirect sending to the destination.

[0020] First, some terms involved in this application are briefly explained.

[0021] SIM: Subscriber Identity Module.

[0022] IP: Internet Protocol, also refers to IP address.

[0023] ISP: Internet Service Provider.

[0024] PGW: Packet Data Network Gateway, packet data network gateway.

[0025] APN: Access Point Name, access point name.

[0026] VPN: Virtual Private Network.

[0027] NAT: Network Address Translation.

[0028] OCS: Online Charging System, online billing system.

[0029] Egress IP: refers to the public IP address used by the device to communicate with the external network when it is connected to the Internet.

[0030] AAA server: Authentication, Authorization, Accounting server.

[0031] Network data: text, images, audio, video, files and other data transmitted and stored in the network.

[0032] In order to access the public network or external network, the vehicle user device needs to have an exit IP as its identification to send and receive network data on the public network and realize communication with the public network. In order to avoid the problems mentioned in the background technology, a solution is needed to provide a dynamic exit IP so that the vehicle can obtain the exit IP of its location.

[0033] One technical solution in the prior art is to set up multiple static APNs, and have different APNs manage different routing exports, so as to select export IPs provided by ISPs in different countries. The system architecture diagram of this solution is shown in Figure 1 As shown, the implementation process is as follows: 1) The user proposes an IP export requirement, such as the need to configure local export IPs for three countries (country A, country B, and country C); 2) The operator finds an ISP provider to rent network export IPs in three countries; 3) The operator configures three different APNs in the core network, including APN1, APN2 and APN3, and sets up the packet data network gateway to route the three APNs to the network exits of the above three countries respectively; 4) When the device is used in country A, APN1 is used to access the Internet, and the data is automatically routed to the exit of country A, and the exit IP of country A is obtained; when the device is used in country B, APN2 is used to access the Internet, and the data is automatically routed to the exit of country B, and the exit IP of country B is obtained; the same applies to country C.

[0034] The above prior art has the following disadvantages: 1. Complicated configuration: An APN needs to be configured for each export country. There are often many countries where cars are exported. A project may need to configure dozens or even hundreds of APNs. Each APN needs to be configured with a corresponding export route, and route management is also very complicated. 2. Uncontrollable costs: Each additional country requires leasing an export IP address from an additional country’s IPS, which will still incur very high costs even in small bandwidth scenarios. 3. Dependence on operators: Since all configurations are made by operators, once the operator needs to be changed, the entire solution will become invalid. The same process needs to be completed on the new operator side to achieve the same service effect. 4. Unable to dynamically change to a new egress IP: Each code number can only be pre-associated with an APN, which means that during the production phase, it is necessary to determine in which region the code number will be used and which egress IP to use, and dynamic changes cannot be made.

[0035] After analyzing the problems existing in the prior art, the applicant proposed a method and system for dynamically obtaining a local egress IP in a connected vehicle network. The embodiments of the present application mainly solve some or all of the following problems existing in the prior art: 1. A large number of APNs need to be configured, which results in complex configuration, complex routing management, and extremely high costs; 2. The plan is bound to the operator configuration and will become invalid once the operator is changed; 3. Only the export IPs of several countries can be pre-defined, and the export IPs of different countries cannot be dynamically updated during subsequent use, that is, it is impossible to achieve backward dynamic update or update based on the current location.

[0036] In an embodiment of the present application, a third-party business system outside the operator is constructed to perform real-time and flexible configuration of the IP export, while decoupling the routing and export capabilities from the operator. The system includes an AAA server and a NAT server. The AAA server obtains the device location in real time and dynamically allocates an IP. It can connect to the operator's Radius client (the Radius client here is the operator's packet data network gateway PGW) to receive the network access information or network request information of the vehicle user device and obtain the current location of the vehicle user device. The AAA server pre-defines the IP address segment for intranet communication that each area needs to use, and dynamically allocates the IP address according to the current location of the vehicle user device in the actual business scenario. The NAT server is pre-associated with the export IP of different regions, and can perform NAT mapping of the intranet IP and the export IP of multiple regions. For data packets that originally need to be exported directly to the public network through the operator, they are redirected to the NAT server, and the local export IP is mapped and exported to the public network. Among them, different regions refer to different countries or regions.

[0037] Please refer to Figure 2 and Figure 3 In some embodiments of the present application, the method for dynamically obtaining a local export IP in a connected vehicle network includes steps 100 to 500, which are described in detail below.

[0038] Step 100: The vehicle user equipment reports network access information to the AAA server through the base station.

[0039] When the vehicle user device accesses the Internet, it will request to stay on the network from the AAA server through the base station. The AAA server performs identity authentication and authorization and allows it to access the network. In this application, different intranet segments are pre-divided according to different regions on the AAA server, and each region has a corresponding intranet segment, that is, the AAA server stores different intranet segments divided according to different regions.

[0040] Please refer to Figure 4 In some embodiments, the vehicle user equipment sends network access information to the second VPN gateway through the base station, and the second VPN gateway receives the network access information and forwards the network access information to the AAA server.

[0041] In some embodiments, the vehicle user equipment sends the network access information to the base station, the base station sends it to the operator's core network, and reaches the second VPN gateway through the operator's packet data network gateway PGW (including PGW-Us, PGW-Cs), online billing system OCS and RADIUS server.

[0042] Step 200: The AAA server receives the network access information, and determines the current network access area of ​​the vehicle user equipment according to the network access information. The network access area is the area where the vehicle user equipment is located.

[0043] In some embodiments, step 100 includes: the vehicle user equipment sends the network access information to the base station, and the base station adds its own location information to the network access information and then sends the network access information to the AAA server.

[0044] When forwarding the network access information to the AAA server, the base station will add its own information, including location information, which includes the cell number of the base station, etc. The location information of the base station can be used to know the area where the vehicle user equipment is located. On this basis, step 200 includes: the AAA server determines the current network access area of ​​the vehicle user equipment according to the location information of the base station in the network access information.

[0045] Step 300: The AAA server selects an intranet IP from the intranet segment corresponding to the access area and assigns it to the vehicle user device. The assignment can be random or in a predetermined manner. The current access area of ​​the vehicle user device can be determined through the intranet IP.

[0046] Step 400: The vehicle user device uses the intranet IP to send network data to the NAT server.

[0047] After obtaining the intranet IP, the vehicle user device goes online and sends network data. When sending network data, the intranet IP will be carried in the data packet of the network data.

[0048] In this application, a NAT server is built, and the egress IPs of different regions are associated or bound to the NAT server, and network data is directed to the NAT server.

[0049] Please refer to Figure 4 In some embodiments, step 400 includes: the vehicle user device uses the intranet IP to send network data to the first VPN gateway; the first VPN gateway receives the network data and forwards the network data to the NAT server.

[0050] like Figure 4 As shown, in some embodiments, there are multiple NAT servers, each of which is associated with an egress IP of a region. The first VPN gateway forwards network data to the NAT server, including: the first VPN gateway forwards the network data to the NAT server associated with the egress IP of the region corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

[0051] By using the VPN gateway to connect with the operator's data export link, the data packets that were originally exported directly to the public network through the operator's PGW are forwarded to the VPN gateway through VPN. The VPN gateway is connected to a NAT server associated with multiple regional export IPs. The VPN gateway forwards the data packets to different NAT servers for local export IP mapping and exports to the public network based on the intranet IP assigned by the AAA server, thereby redirecting network data and obtaining local export IPs.

[0052] In some embodiments, the vehicle user device uses an intranet IP to send network data to the first VPN gateway through a base station and a PGW (specifically, PGW-Us). Specifically, it can be sent to the first VPN gateway through the base station and the PGW according to a predefined link.

[0053] Step 500: The NAT server receives network data and converts the intranet IP into an exit IP of the area corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize communication between the vehicle user device and the public network, including using the exit IP to export the network data sent by the vehicle user device to the public network, and sending the network data sent by the public network with the destination address of the exit IP to the vehicle user device.

[0054] When the vehicle user equipment enters a cell covered by another base station from a cell covered by the base station, it needs to stay on the other base station, and then report the network access information to the AAA server again through the other base station. At this time, the AAA server can obtain the current network access area of ​​the vehicle user equipment, allocate an intranet IP to the vehicle user equipment according to the current network access area, and obtain the current exit IP of the network access area through the conversion of the intranet IP, so that when the vehicle user equipment enters another area, it can obtain the exit IP of the area, and realize the dynamic acquisition of the local exit IP.

[0055] Based on the above method, this application also provides a system for dynamically obtaining local export IP in the Internet of Vehicles, please refer to Figure 5 In some embodiments, the system includes an AAA server 1 and a NAT server 2, which are described in detail below.

[0056] The AAA server 1 stores different intranet segments divided according to different regions, and each region has a corresponding intranet segment. The AAA server 1 is used to receive the network access information reported by the vehicle user equipment through the base station, determine the current network access area of ​​the vehicle user equipment according to the network access information, and select an intranet IP from the intranet segment corresponding to the network access area and assign it to the vehicle user equipment.

[0057] As described above, in some embodiments, when a vehicle user device reports network access information through a base station, the network access information is sent to the base station. The base station adds its own location information to the network access information and then sends the network access information to AAA server 1. AAA server 1 is specifically used to determine the current network access area of ​​the vehicle user device based on the location information of the base station in the network access information.

[0058] Please refer to Figure 4 and Figure 6 In some embodiments, the system further includes a second VPN gateway 3 , the vehicle user equipment sends network access information to the second VPN gateway 3 through the base station, and the second VPN gateway 3 receives the network access information and forwards the network access information to the AAA server 1 .

[0059] NAT server 2 is pre-associated with exit IPs of different regions. NAT server 2 is used to receive network data sent by vehicle user equipment using intranet IP, convert the intranet IP into the exit IP of the region corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize communication between vehicle user equipment and the public network.

[0060] Please refer to Figure 4 and Figure 6 In some embodiments, the system further includes a first VPN gateway 4 , which is used to receive network data sent by the vehicle user device using an intranet IP, and forward the network data to the NAT server 2 .

[0061] like Figure 4 As shown, in some embodiments, there are multiple NAT servers 2, each NAT server 2 is associated with an egress IP of a region; the first VPN gateway 4 is specifically used to forward network data to the NAT server 2 associated with the egress IP of the region corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

[0062] It can be seen that in this application, through the cooperation of the AAA server and the NAT server (preferably also including a VPN gateway), the current location of the vehicle user device can be known, and the network data sent by the vehicle user device can be directed to the corresponding NAT server and converted into the exit IP of the current location of the vehicle user device, thereby dynamically obtaining the local exit IP. The technical solution of this application has the following advantages over the prior art: (1) It can dynamically select the export IP according to the current location of the vehicle user device, so that the vehicle user device has the ability to dynamically obtain the local IP; (2) There is no need to define a large number of different APNs. Just define a small number of APNs according to business needs. (3) It does not rely on the operator's routing configuration. Regardless of the operator, it only needs to forward the network data to the NAT server, preferably to the VPN gateway, and then forward it to the NAT server by the VPN gateway, so that the vehicle user device can directly obtain the local IP capability; (4) There is no need to determine in which region the code number of the vehicle user device is used during the production stage, and the export IP can be dynamically updated according to the current location of the vehicle user device.

[0063] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0064] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A method for dynamically obtaining a local egress IP in a vehicle network, characterized in that: include: The vehicle user equipment reports the network access information to the AAA server through the base station, wherein the AAA server stores different intranet segments divided according to different regions, and each region has a corresponding intranet segment; The AAA server receives the network access information, and determines the current network access area of ​​the vehicle user equipment according to the network access information, where the network access area is the area where the vehicle user equipment is located; The AAA server selects an intranet IP from the intranet segment corresponding to the network access area and assigns it to the vehicle user equipment; The vehicle user equipment uses the intranet IP to send network data to the NAT server, wherein the NAT server is pre-associated with the exit IPs of the different areas; The NAT server receives the network data and converts the intranet IP into an exit IP of an area corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize communication between the vehicle user equipment and the public network.

2. The method according to claim 1, characterized in that The vehicle user equipment uses the intranet IP to send network data to the NAT server, including: The vehicle user equipment uses the intranet IP to send network data to the first VPN gateway; The first VPN gateway receives the network data and forwards the network data to the NAT server.

3. The method according to claim 2, characterized in that There are multiple NAT servers, each of which is associated with an egress IP of a region; the first VPN gateway forwards the network data to the NAT server, including: The first VPN gateway forwards the network data to the NAT server associated with the egress IP of the area corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

4. The method according to claim 2 or 3, characterized in that The vehicle user equipment uses the intranet IP to send network data to the first VPN gateway through the base station and the packet data network gateway.

5. The method according to claim 1, characterized in that The vehicle user equipment reporting network access information to the AAA server through the base station includes: the vehicle user equipment sending the network access information to the base station, and the base station adding its own location information to the network access information and then sending the network access information to the AAA server; The AAA server determines the current network access area of ​​the vehicle user equipment according to the network access information, including: the AAA server determines the current network access area of ​​the vehicle user equipment according to the location information of the base station in the network access information.

6. The method according to claim 1, characterized in that When the vehicle user equipment enters a cell covered by another base station from a cell covered by the base station, the vehicle user equipment reports the network access information to the AAA server again through the other base station.

7. A system for dynamically acquiring local egress IP in a vehicle network, characterized in that: include: An AAA server, wherein the AAA server stores different intranet segments divided according to different regions, and each region has a corresponding intranet segment; The AAA server is used to receive the network access information reported by the vehicle user equipment through the base station, determine the current network access area of ​​the vehicle user equipment according to the network access information, and select an intranet IP from the intranet segment corresponding to the network access area and allocate it to the vehicle user equipment, wherein the network access area is the area where the vehicle user equipment is located; A NAT server, wherein the NAT server is pre-associated with the exit IPs of the different areas; the NAT server is used to receive the network data sent by the vehicle user device using the intranet IP, and convert the intranet IP into the exit IP of the area corresponding to the intranet segment to which it belongs, so as to use the exit IP to realize the communication between the vehicle user device and the public network.

8. The system according to claim 7, characterized in that It also includes a first VPN gateway, which is used to receive network data sent by the vehicle user equipment using the intranet IP and forward the network data to the NAT server.

9. The system according to claim 8, characterized in that There are multiple NAT servers, each of which is associated with an egress IP of a region; the first VPN gateway is specifically used to forward the network data to the NAT server associated with the egress IP of the region corresponding to the intranet segment according to the intranet segment to which the intranet IP belongs.

10. The system according to claim 7, characterized in that When the vehicle user equipment reports the network access information through the base station, the network access information is sent to the base station, and the base station adds its own location information to the network access information and then sends the network access information to the AAA server; The AAA server is specifically used to determine the current network access area of ​​the vehicle user equipment according to the location information of the base station in the network access information.

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