JP2020145693A - Method and device for data transmission in vehicle-to-vehicle and road-to-vehicle communication system - Google Patents

Abstract

To provide a data transmission method and device that allow terminals of a vehicle-to-vehicle and road-to-vehicle communication system to simultaneously access the networks of a plurality of communication carriers.SOLUTION: A terminal of a vehicle-to-vehicle and road-to-vehicle communication system receives data transmitted by a second communication carrier based on radio resource connection establishment with a network device belonging to a searched-for serving cell, reception of information on the second communication carrier transmitted by the network device, reception of data transmitted by a first communication carrier, and/or the information on the second communication carrier. When the network device is deployed by the first communication carrier, the information on the second communication carrier is made to include at least one of identification information and frequency resource information to guarantee that the terminal grasps in time information on other communication carriers in the network, and thereby data can be simultaneously transmitted or received to/from a plurality of communication carrier networks.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of communication, and specifically to methods and devices for data transmission in vehicle-to-vehicle / road-to-vehicle communication systems.

In the current Long Term Evolution (LTE) system, mobile stations perform radio resource control (RRC: Radio) after completing uplink synchronization and uplink resource requests by random access.
Resource Control) The connection establishment flow is started on the network side by the connection establishment request (Connection Request). At this time, the mobile station causes the network side to identify itself with its own identification information (S-TMSI) so that the network can identify itself. The identifier is assigned by the core network and is composed of mmec + m-TMSI. Here, mmec identifies mobile management entity (MME: Mobility Management Entry) information, and m-TMSI is the only identifier of the mobile station in the MME. At the same time, the mobile station reports the selected public mobile phone network (PLMN: Public Land Mobile Network). The network-side base station device acquires the S-TMSI of the mobile station and then notifies the MME via S1 signaling, and the MME determines whether or not the mobile station is valid.

Currently, the 3rd Generation Partnership Project (3GPP) is studying the introduction of vehicle-to-vehicle and road-to-vehicle communication (V2X) based on the LTE system, where access to V2X terminals. Is an important issue in the entire communication flow. However, future V2X communication systems will not be arranged by only one telecommunications carrier, and V2X terminals will access the systems of multiple telecommunications carriers at the same time and transfer data to the networks of multiple telecommunications carriers. You need to send and receive. Therefore, how to make the V2X terminal access the V2X network is a technical issue for which an urgent solution is awaited.

The present invention provides methods and devices for data transmission in vehicle-to-vehicle and road-to-vehicle communication systems, can ensure that a V2X terminal succeeds in accessing a communication network, and at the same time, the terminal device is in the network. It is possible to guarantee that the information of other carriers is grasped in a timely manner, and the terminal device sends data to multiple carrier networks or receives data from multiple carriers networks. To be able to.

In a first aspect, a method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system is provided.
The terminal device establishes a wireless resource connection with the network device belonging to the searched serving cell,
The terminal device receives the information of the second telecommunications carrier transmitted from the network device, and
The terminal device receives data transmitted from the first telecommunications carrier and / or the terminal device transmits from the second telecommunications carrier based on the information of the second telecommunications carrier. To receive the data
The network device is arranged by the first telecommunications carrier, and the information of the second telecommunications carrier includes at least one of the identification information and the frequency resource information.

As an option, the information of the second carrier was transmitted to the terminal device when the network device received the information transmitted from the core network device indicating that the authentication to the terminal device was successful. It is a thing.

Therefore, the method for data transmission in the vehicle-to-vehicle / road-to-vehicle communication system in the embodiment of the present invention can realize the access of the terminal device, and the terminal device can time the information of other telecommunications carriers in the network. It can be assured that it will be known to Lee, allowing the terminal device to send data to or receive data from multiple carrier networks.

Combining the first aspect, in the first possible embodiment of the first aspect, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier.

Combining the first aspect and the above embodiments thereof, in the second possible embodiment of the first aspect, the terminal device may establish a radio resource connection with a network device belonging to the searched serving cell. ,
The terminal device includes transmitting at least one of the terminal device's identification information, connection establishment origin information, and terminal type identification information to the network device.
Here, the identification information of the terminal device is used for the core network device to authenticate to the terminal device, and the connection establishment cause information is used to indicate the cause of the wireless resource connection, and the terminal is used. The type identification information is used to identify the type of the terminal device.

Combining the first aspect and the second possible embodiment, in the third possible embodiment of the first aspect, the terminal device connects to the network device with the identification information and connection establishment of the terminal device. Sending at least one of the cause information and the terminal type identification information
The terminal device sends a connection establishment request message to the network device, or
The terminal device sends a connection establishment completion message to the network device,
The connection establishment request message includes at least one of the terminal device identification information, the connection establishment cause information, and the terminal type identification information, and the connection establishment completion message is the identification of the terminal device. Includes at least one of information, connection establishment origin information, and terminal type identification information.

Combining the first aspect with the above embodiment, in the fourth possible embodiment of the first aspect, the method allows the terminal device to transmit carrier information request information to the network device. Further included, the telecommunications carrier information request information is used to request the network device to transmit the telecommunications carrier information to the terminal device.

If the terminal device does not store information about other carriers in the network to which the serving cell to be accessed belongs, the terminal device notifies the terminal device of information about other carriers in the serving cell by the corresponding identifier. Request the network side to do so.

Combining the first aspect and the above embodiments thereof, in the fifth possible embodiment of the first aspect, the terminal device receives the information of the second telecommunications carrier transmitted from the network device. That is, the terminal device includes receiving a relocation message transmitted from the network device, and the relocation message includes information on the second carrier.

In the second aspect, a method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system is provided.
Network devices establish wireless resource connections with terminal devices,
The network device transmits the identification information of the terminal device to the core network device so that the core network device authenticates the terminal device based on the identification information of the terminal device. ,
When the network device receives the information transmitted from the core network device indicating that the authentication is successful, the network device transmits the second carrier information to the terminal device.
The network device is a network device belonging to the searched serving cell of the terminal device, the network device is arranged by the first telecommunications carrier, and the information of the second telecommunications carrier is the identification information and the frequency. Contains at least one of the resource information.

Therefore, the method for data transmission in the vehicle-to-vehicle / road-to-vehicle communication system in the embodiment of the present invention can realize the access of the terminal device, and the terminal device can obtain information of other communication carriers in the network. It can be guaranteed to be timely grasped and allows the terminal device to send data to or receive data from multiple carrier networks.

Combining the second aspect, in the first possible embodiment of the second aspect, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier.

Combining the second aspect or the possible embodiments described above, in the second possible embodiment of the second aspect, the network device may establish a wireless resource connection with the terminal device.
The network device includes receiving at least one of the terminal device's identification information, connection establishment origin information, and terminal type identification information transmitted from the terminal terminal device.
Here, the connection establishment cause information is used to indicate the cause of the wireless resource connection, and the terminal type identification information is used to identify the type of the terminal device.

In the third possible embodiment of the second aspect, the network device is the sum of the identification information of the terminal device transmitted from the terminal device by combining the second possible embodiment of the second aspect. When the terminal type identification information is received, the network device transmits the identification information of the terminal device to the core network device, so that the network device receives the identification information of the terminal device and the terminal. Includes transferring type identification information to the core network device.

Combining the second aspect or the possible embodiments described above, in the fourth possible embodiment of the second aspect, the method is used when the network device establishes a wireless resource connection with the terminal device. Determining the type of the terminal device based on the type of frequency resource to be used, and the network device including transmitting identification information identifying the type of the terminal device to the core network device.

In the fifth possible embodiment of the second aspect, which combines the second possible embodiments of the second aspect, the network device is transmitted from the terminal device to identify the terminal device. , Receiving at least one of the connection establishment origin information and the terminal type identification information
The network device receives the connection establishment request message sent from the terminal device,
Or
The network device receives the connection establishment completion message sent from the terminal device,
The connection establishment request message includes at least one of the terminal device identification information, the connection establishment cause information, and the terminal type identification information, and the connection establishment completion message is the identification of the terminal device. Includes at least one of information, connection establishment origin information, and terminal type identification information.

Combining the second aspect and the above possible embodiments, in the sixth possible embodiment of the second aspect, it is the terminal that transmits the information of the second carrier to the terminal device. When the telecommunications carrier information request information transmitted from the device is received, the information of the second telecommunications carrier is transmitted to the terminal device.

Combining the second aspect and the possible embodiments, in the seventh possible embodiment of the second aspect, the method is such that the network device is transmitted from the core network device. It further includes receiving information about the operator.

In a third aspect, a method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system is provided.
The core network device receives the identification information of the terminal device transmitted from the network device, and
The core network device authenticates the terminal device based on the identification information of the terminal device, and
When the network device receives the information indicating that the authentication is successful, the core network device is authenticated to the terminal device so that the terminal device transmits the information of the second carrier. If successful, send information to the network device indicating that the authentication was successful, and
The network device is a network device belonging to the searched serving cell of the terminal device, the network device is arranged by the first telecommunications carrier, and the information of the second telecommunications carrier is the identification information and the frequency. Contains at least one of the resource information.

Therefore, the access of the terminal device can be realized based on the method for data transmission in the vehicle-to-vehicle / road-to-vehicle communication system according to the embodiment of the present invention, and the terminal device can be used by another telecommunications carrier in the network. Information can be assured to be grasped in a timely manner, allowing the terminal device to send data to or receive data from multiple carrier networks.

Combining the third aspect, in the first possible embodiment of the third aspect, the method further comprises the core network device transmitting the second carrier information to the network device. ..

Combining the third aspect and the above embodiment, in the second possible embodiment of the third aspect, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier. Will be done.

In a fourth aspect, a terminal device is provided and used to implement the method in any possible embodiment of the first aspect or the first aspect, wherein the terminal device is specifically described above. Includes a unit used to carry out the method in the first aspect of or any possible embodiment of the first aspect of.

In a fifth aspect, a network device is provided and used to implement the method in any possible embodiment of the second aspect or the second aspect described above, wherein the network device is specifically described above. Includes units used to implement the method in the second aspect of or any possible embodiment of the second aspect of.

In a sixth aspect, the core network device is provided and used to carry out the method in any possible embodiment of the third or third aspect described above, wherein the core network device is specifically. Included with the units used to carry out the methods in any possible embodiment of the third aspect or third aspect described above.

In a seventh aspect, a computer-readable medium is provided and the computer program is configured to store the computer program, the method of the first aspect or any possible embodiment of the first aspect. Contains instructions to execute.

In an eighth aspect, a computer-readable medium is provided and the computer program is configured to store the computer program according to the method in the second aspect or any possible embodiment of the second aspect. Contains instructions to execute.

In a ninth aspect, a computer-readable medium is provided and the computer program is configured to store the computer program, the method in any possible embodiment of the third aspect or the third aspect. Contains instructions to execute.

It is a schematic flowchart of the method for data transmission in the vehicle-to-vehicle / road-to-vehicle communication system according to the embodiment of the present invention. It is a schematic block diagram of the terminal device according to the Example of this invention. It is a schematic block diagram of the terminal device according to another embodiment of this invention. It is a schematic block diagram of the network device according to the Example of this invention. It is a schematic block diagram of the network device according to another embodiment of this invention. It is a schematic block diagram of the core network device according to the Example of this invention. It is a schematic block diagram of the core network device according to the Example of this invention.

In order to more clearly explain the embodiments of the present invention, the drawings required in the description of the examples or the prior art will be briefly described above, and clearly, the drawings described above are merely the present invention. It is only a few examples of the above, and other drawings can be obtained based on these drawings on the premise that those skilled in the art do not take any creative effort.

In the following, the drawings of the examples of the present invention will be combined to clearly and fully explain the technical proposal of the examples of the present invention, and of course, the described examples are some examples of the present invention. Not all examples. Based on the examples of the present invention, all other examples obtained by those skilled in the art without any creative effort are within the scope of the present invention.

In an embodiment of the present invention, the network device may be a base station and is a loadside unit (RSU: Road) capable of scheduling V2X terminal devices.
Side Unit), and optionally, the RSU may be a device such as an intelligent traffic signal light, a traffic sign, or the like.

The method for data transmission in the vehicle-to-vehicle / road-to-vehicle communication system according to the embodiment of the present invention is mainly in the vehicle-to-vehicle / road-to-vehicle communication V2X system, in which the vehicle-mounted terminal is in the preparatory stage of data transmission when the vehicle starts. Applies to the process of establishing a connection with the network. The method for data transmission in the embodiment of the present invention can be applied to a V2X system in which one or more carriers are arranged. When V2X is arranged by multiple carriers, the possible arrangement methods are a method in which multiple carriers completely share a dedicated frequency band and arrange a V2X system, and a method in which multiple carriers are dedicated. Transmission is performed using frequencies within the frequency band, but frequency resources are allocated independently to each carrier, and multiple carriers still use their current frequency band for transmission and are dedicated. A method in which the frequency band resources of the above are not allocated may be used, but the method is not limited to these.

FIG. 1 is a schematic flowchart of a method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system according to an embodiment of the present invention. As shown in FIG. 1, the method 100 includes S110 to S140.

In S110, the terminal device establishes a wireless resource connection with the network device belonging to the searched serving cell, and the network device is arranged by the first telecommunications carrier.

After being activated, the terminal device can select and access one of the serving cells, i.e., establish a wireless resource connection with the network device. As an option, the terminal device transmits at least one of the terminal device's identification information, connection establishment origin information, and terminal type identification information to the network device in the process of establishing a wireless resource with the network device. Here, the identification information of the terminal device is used for the core network device to authenticate to the terminal device, and the connection establishment cause information is used to indicate the cause of the wireless resource connection. The terminal type identification information is used to identify the type of the terminal device.

By way of example, the terminal device can send a connection establishment request message and / or a connection establishment completion message to the network device, and the above information is included in the connection establishment request message and / or the connection establishment request completion message. Includes at least one of. The connection establishment request message may be a radio resource control (RRC: Radio Resource Control) connection establishment request message, and the connection establishment completion message may be an RRC connection establishment completion message.

In S120, the network device transmits the identification information of the terminal device to the core network device so that the core network device authenticates the terminal device based on the identification information of the terminal device. To do.

As an option, as one embodiment, the identity identification information of the terminal device may be, for example, a mobile user identifier (MSI: Mobile Subscriber Identity) or a temporary mobile user identifier (TMSI). You may. The terminal device can add an identifier that identifies its type to the connection establishment request message or connection establishment completion message, for example, the identifier directly identifies that the terminal device is a V2X type terminal device. Or, in addition, it is possible to identify whether the terminal device is a small passenger car or a truck.

Further, the network device can determine the type of the terminal device based on the type of frequency resource occupied when establishing the wireless resource connection with the terminal device, for example, if the network device is wireless with the terminal device. If it is the V2X system dedicated frequency that is used when establishing the resource connection, the network device determines that the terminal device is a V2X terminal device. When the network device receives the terminal type identification information transmitted from the terminal device, the terminal type identification information may be transferred to the core network device, or when the network device estimates the type of the terminal device by the access frequency. , The identification information indicating the type of the terminal device can be transmitted to the core network device. For example, the network device provides the identification information indicating the type of the terminal device to the core network by an S1 interface message such as Initial UE Message. Can be transferred to the device.

In S130, the network device receives information indicating successful authentication transmitted from the core network device.

The core network device authenticates based on the information such as the registered PLMN ID and the terminal device ID reported by the terminal device transferred by the network device, and whether or not the terminal device is an authenticated V2X terminal device. To verify.

After successful authentication, the core network device can confirm that the terminal device is an authenticated V2X terminal device by S1 interface message, eg, INTINAL Context SETUP REQUEST.

In S140, the network device transmits the information of the second telecommunications carrier to the terminal device, and the information of the second telecommunications carrier includes at least one of the identification information and the frequency resource information.

The network device can transmit the information of the second carrier to the terminal device after receiving the message from the core network device indicating that the authentication was successful. For example, the information of the second telecommunications carrier can be transmitted to the terminal device by the air interface dedicated signaling such as the relocation message. Other network device configuration information, such as establishing a bearer that correlates with physical layer configuration, media access control (MAC) layer configuration, etc., is also transmitted at the same time. The second telecommunications carrier may be a telecommunications carrier that arranges the communication network to which the searched serving cell of the terminal device belongs in S110, that is, the communication network to which the searched serving cell of the terminal device belongs is the first communication. It is arranged together by the operator and the second telecommunications carrier.

As an option, the carrier identification information may be the carrier's PLMN number.
If the carrier's PLMN number has a one-to-one relationship with the frequency resource, only the second carrier's PLMN number may be sent to the terminal device, or the second carrier's frequency resource information may be sent to the terminal device. You may only send.

Further, the network device receives the information transmitted from the terminal device requesting the terminal device to transmit the second carrier only when the network device receives the information of the second carrier to the terminal device. Can be sent.

As an option, in S130, in the core network device, the information indicating that the terminal device is an authenticated V2X terminal device to be transmitted to the network device can include the information of the second telecommunications carrier. The network device can transfer the information of the second carrier transmitted from the received core network device to the terminal device, or the network device is set by the operation maintenance management (OAM: Operation Administration and Maintenance). The terminal device can transmit the information of the second carrier that has been monitored or monitored.

In the following, the terminal device according to the embodiment of the present invention will be described in detail by combining FIG.
As shown in FIG. 2, the terminal device 10 is
A communication establishment unit 11 configured to establish a radio resource connection with a network device belonging to the searched serving cell,
A transmission / reception unit 12 configured to receive the information of the second telecommunications carrier transmitted from the network device, and
The network device is arranged by the first carrier, and the information of the second carrier includes at least one of the identification information and the frequency resource information.
The transmission / reception unit 12 receives the data transmitted from the first telecommunications carrier, and / or the terminal device transmits from the second telecommunications carrier based on the information of the second telecommunications carrier. Further configured to receive the data.

The terminal device in the embodiment of the present invention establishes a wireless resource connection with the network device, receives information of other carriers transmitted from the network device, thereby simultaneously transmitting data to a plurality of carrier networks. It can transmit or receive data from multiple carriers' networks.

In the embodiment of the present invention, as an option, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier.

In the embodiment of the present invention, as an option, the transmission / reception unit 12 specifically provides the network device with at least one of the identification information of the terminal device, the connection establishment origin information, and the terminal type identification information. Configured to send.

Here, the identification information of the terminal device is used for the core network device to authenticate to the terminal device, and the connection establishment cause information is used to indicate the cause of the wireless resource connection. The terminal type identification information is used to identify the type of the terminal device.

In the embodiment of the present invention, as an option, the transmission / reception unit 12 specifically transmits a connection establishment request message to the network device, or
It is configured to send a connection establishment completion message to the network device.
The connection establishment request message includes at least one of the terminal device identification information, connection establishment cause information, and terminal type identification information, and the connection establishment completion message includes the terminal device identification information and connection. Includes at least one of the establishment origin information and the terminal type identification information.

In an embodiment of the present invention, as an option, the transmission / reception unit 12 is further configured to transmit carrier information request information to the network device, and the carrier information request information is sent to the network device. It is used to request the terminal device to transmit the second carrier information.

In an embodiment of the invention, as an option, the transmit / receive unit 12 is further configured to receive a relocation message transmitted from the network device, which relocates the information of the second carrier. Including.

In the embodiment of the present invention, the communication establishment unit 11 may be realized by a processor, the transmission / reception unit 12 may be realized by a receiver and a transmitter, and as shown in FIG. 3, the terminal device 100 may be realized. , Processor 101, receiver 102, transmitter 103 and storage device 104. Here, the storage device 104 is configured to store a code or the like to be executed in the processor 101, and the processor 101 executes the code stored in the storage device 104, receives a signal in the receiver 102, and transmits the transmitter 103. It is configured to control the signal transmission in.

Each component in the terminal device 100 is coupled by a bus system 105, where the bus system 105 includes a power bus, a control bus, and a status signal bus in addition to the data bus.

The terminal device 10 shown in FIG. 2 and the terminal device 100 shown in FIG. 3 can realize each flow in which the terminal device according to the method embodiment of FIG. 1 is realized. The description is omitted here to avoid duplication.

FIG. 4 is a schematic block diagram of a network device according to an embodiment of the present invention. As shown in FIG. 4, the network device 20 is
A communication establishment unit 21 configured to establish a wireless resource connection with a terminal device,
A transmission / reception unit configured to transmit the identification information of the terminal device to the core network device so that the core network device authenticates the terminal device based on the identification information of the terminal device. 22 and
The network device is a network device belonging to the searched serving cell of the terminal device, and the network device is arranged by the first telecommunications carrier.
The transmission / reception unit 22 is further configured to transmit the information of the second telecommunications carrier to the terminal device when it receives the information transmitted from the core network device indicating that the authentication is successful. The information of the second telecommunications carrier includes at least one of the identification information and the frequency resource information.

The network device in the embodiment of the present invention establishes a wireless resource connection with the terminal device and transmits information of other carriers to the terminal device, thereby to the terminal device and to a plurality of carriers networks at the same time. Data can be transmitted or data from multiple carriers' networks can be received.

In the embodiment of the present invention, as an option, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier.

In the embodiment of the present invention, as an option, the transmission / reception unit 22 is further configured to receive the identification information of the terminal device, the connection establishment origin information, and the terminal type identification information transmitted from the terminal device. Here, the connection establishment cause information is used to indicate the cause of the wireless resource connection, and the terminal type identification information is used to identify the type of the terminal device.

In the embodiment of the present invention, when the transmission / reception unit 22 receives the identification information of the terminal device and the terminal type identification information transmitted from the terminal device as an option, the transmission / reception unit 22 is specified. Therefore, the received identification information of the terminal device and the terminal type identification information are configured to be transferred to the core network device.

In the embodiment of the present invention, as an option, the communication establishment unit 21 is configured to determine the type of the terminal device based on the type of frequency resource occupied when establishing a wireless resource connection with the terminal device. Being done
Here, the transmission / reception unit 22 is further configured to transmit identification information that identifies the type of the terminal device to the core network device.

In the embodiment of the present invention, as an option, the transmission / reception unit 22 is specifically configured to receive a connection establishment request message transmitted from the terminal device, and the connection establishment request message is the terminal device. The connection establishment completion message contains at least one of the identification information, the connection establishment origin information, and the terminal type identification information, or is configured to receive the connection establishment completion message transmitted from the terminal device. , At least one of the identification information of the terminal device, the connection establishment origin information, and the terminal type identification information.

In the embodiment of the present invention, as an option, when the transmission / reception unit 22 specifically receives the telecommunications carrier information request information transmitted from the terminal device, the terminal device receives the information of the second telecommunications carrier. Is configured to send.

In an embodiment of the invention, as an option, the transmit / receive unit 22 is further configured to receive information about the second carrier transmitted from the core network device.

In the embodiment of the present invention, the communication establishment unit 21 may be realized by a processor, and the transmission / reception unit 22 may be realized by a receiver and a transmitter. As shown in FIG. 5, the network device 200 can include a processor 201, a receiver 202, a transmitter 203 and a storage device 204. Here, the storage device 204 is configured to store a code or the like to be executed in the processor 201, and the processor 201 executes the code stored in the storage device 204, receives a signal in the receiver 202, and transmits the transmitter 203. It is configured to control the signal transmission in.

Each component in the network device 200 is coupled by a bus system 205, wherein the bus system 205 includes a power bus, a control bus, and a status signal bus in addition to the data bus.

The network device 20 shown in FIG. 4 and the network device 200 shown in FIG. 5 can realize each flow in which the terminal device in the method embodiment of FIG. 1 is realized. The description is omitted here to avoid duplication.

FIG. 6 shows a core network device according to an embodiment of the present invention, and as shown in FIG. 6, the core network device 30 is
A transmission / reception unit 31 configured to receive the identification information of the terminal device transmitted from the network device, and
An authentication unit 32 configured to authenticate the terminal device based on the identification information of the terminal device, and
The network device is a network device belonging to the searched serving cell of the terminal device, and the network device is arranged by the first telecommunications carrier.
When the transmission / reception unit 31 receives the information indicating that the authentication is successful, the authentication unit causes the terminal device to transmit the information of the second telecommunications carrier to the terminal device. On the other hand, when the authentication is successful, it is further configured to send information indicating that the authentication is successful to the network device, and the information of the second carrier is at least the identification information and the frequency resource information. Including one.

The core network device in the embodiment of the present invention is a network device when the terminal device is successfully authenticated so that the network device transmits the information of another carrier to the terminal device when the information is received. Sends information indicating successful authentication to the terminal device, which allows the terminal device to simultaneously send data to multiple carrier networks or receive data from multiple carriers networks.

In an embodiment of the present invention, as an option, the transmission / reception unit 31 is further configured to transmit information about the second carrier to the network device.

In the embodiment of the present invention, as an option, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier.

In the embodiment of the present invention, the transmission / reception unit 31 may be realized by the receiver and the transmitter, and the authentication unit 32 may be realized by the processor. As shown in FIG. 7, the core network device 300 can include a processor 301, a receiver 302, a transmitter 303 and a storage device 304. Here, the storage device 304 is configured to store a code or the like to be executed in the processor 301, and the processor 301 executes the code stored in the storage device 304, receives a signal in the receiver 302, and transmits the transmitter 303. It is configured to control the signal transmission in.

Each component in the core network device 300 is coupled by a bus system 305, where the bus system 305 includes a power bus, a control bus and a status signal bus in addition to the data bus.

The core network device 30 shown in FIG. 6 and the core network device 300 shown in FIG. 7 can realize each flow in which the terminal device in the method embodiment of FIG. 1 is realized. To avoid duplication, no further discussion is given here.

It is said that the steps of each exemplary unit and algorithm described in the examples disclosed in the present application can be combined and realized using electronic hardware or a combination of computer software and electronic hardware. Any trader can understand. Whether these functions are implemented in the form of hardware or software depends on the specific application and design constraints of the proposed technology. One of ordinary skill in the art can achieve the functions described using different methods for each particular application, but such realization should not be considered beyond the scope of the present invention. For the convenience and conciseness of the description, the corresponding flows of the above method embodiments can be referred to for the specific operations of the systems, devices and units described above, which are described further herein. Absent.

In some of the embodiments provided in the present application, the disclosed systems, devices and methods may be implemented in other ways. For example, the examples of the devices described above are merely exemplary, for example, the division of the units is merely a logical functional division, and in fact, other divisions when realized. It may be present, for example, a plurality of units or components may be integrated or assembled into another system, or some technical features may be omitted or not implemented. Also, the mutual coupling, or direct coupling, or communication connection of each component specified or discussed is connected by indirect coupling or communication of some interfaces, devices, or units. It may be of any form, electrical, mechanical, or other.

The units described above as separate components may or may not be physically separated. The component shown as a unit may or may not be a physical unit. It may be arranged in one place or distributed to a plurality of network units. Depending on the actual needs, some or all of the units may be selected to achieve the purpose of the technical proposal of this embodiment.

Further, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be a single unit, and two or more units may be integrated into one unit. You may.

The function is realized by the method of a software function unit, and when sold or used as an independent product, it may be stored in a computer-readable storage medium. As a result, the part of the technical proposal of the present invention that contributes to the prior art can be realized in the form of a software product, and the computer software product is stored in a storage medium and is stored in a computer device (personal computer, server, or network device). Etc.) include a plurality of instructions for executing the above-mentioned method in all or part of each embodiment of the present invention. The above storage medium stores various program codes such as a USB memory, a mobile storage medium, a read-only memory (ROM: Read-Only Memory), a random access storage device (RAM: Random Access Memory), a magnetic disk, or a compact disk. Includes capable media.

The above description is merely a specific embodiment of the present invention, and the present invention is not limited to this, and modifications or modifications that can be easily conceived by those skilled in the art within the scope disclosed in the present invention. All replacements should be included within the scope of the present invention. Therefore, the scope of the present invention should conform to the stated claims.

Claims (8)

It is a method for data transmission in vehicle-to-vehicle / road-to-vehicle communication systems.
The terminal device receives information of a second telecommunications carrier transmitted from a network device belonging to the serving cell, and the telecommunications network to which the serving cell belongs includes the first telecommunications carrier and the second telecommunications carrier. The network device is arranged by the first telecommunications carrier, and the information of the second telecommunications carrier includes at least one of a public mobile phone network (PLMN) and frequency resource information.
The terminal device receives the data transmitted from the second telecommunications carrier based on the information of the second telecommunications carrier.
including,
A method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system. The method is
The terminal device further includes establishing a wireless resource connection with the network device by transmitting at least one of the terminal device's identification information and the terminal type identification information to the network device.
Here, the identification information of the terminal device is used for the core network device to authenticate to the terminal device, and the terminal type identification information is used for identifying the type of the terminal device.
The method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system according to claim 1. The terminal device may transmit at least one of the terminal device identification information and the terminal type identification information to the network device.
The terminal device transmits a connection establishment request message to the network device, and the connection establishment request message includes at least one of the identification information of the terminal device and the terminal type identification information. Or,
The terminal device transmits a connection establishment completion message to the network device, and the connection establishment completion message includes at least one of the identification information and the terminal type identification information of the terminal device.
including,
The method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system according to claim 2. The terminal device further includes transmitting carrier information request information to the network device.
The telecommunications carrier information request information is used to request the network device to transmit the telecommunications carrier information to the terminal device.
The method for data transmission in a vehicle-to-vehicle / road-to-vehicle communication system according to any one of claims 1 to 3. A terminal device that includes a transmit / receive unit
The transmission / reception unit
Receiving the information of the second telecommunications carrier transmitted from the network device belonging to the serving cell, the communication network to which the serving cell belongs is arranged by the first telecommunications carrier and the second telecommunications carrier, and the said The network device is arranged by the first carrier, and the information of the second carrier includes at least one of a public mobile phone network (PLMN) and frequency resource information.
It is configured to receive and execute data transmitted from the second telecommunications carrier based on the information of the second telecommunications carrier.
A terminal device characterized by that. Including communication establishment unit
The communication establishment unit
It is configured to establish a wireless resource connection with the network device by transmitting at least one of the terminal device identification information and the terminal type identification information to the network device via the transmission / reception unit.
Here, the identification information of the terminal device is used for the core network device to authenticate to the terminal device, and the terminal type identification information is used for identifying the type of the terminal device.
The terminal device according to claim 5. The transmission / reception unit
To send a connection establishment request message to the network device, the connection establishment request message includes at least one of the terminal device identification information and the terminal type identification information, or
Sending a connection establishment completion message to the network device, such that the connection establishment completion message includes at least one of the terminal device identification information and the terminal type identification information. Further composed,
The terminal device according to claim 6. The transmission / reception unit
Further configured to transmit carrier information request information to the network device.
The telecommunications carrier information request information is used to request the network device to transmit the telecommunications carrier information to the terminal device.
The terminal device according to any one of claims 5 to 7.

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