WO2019100287A1

WO2019100287A1 - Method for sending data in internet of vehicles, terminal, and network device

Info

Publication number: WO2019100287A1
Application number: PCT/CN2017/112601
Authority: WO
Inventors: 唐海
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-11-23
Filing date: 2017-11-23
Publication date: 2019-05-31
Also published as: CN110710253A

Abstract

The present invention provides a method for sending data in the Internet of vehicles, a terminal, and a network device. In one aspect, in an embodiment of the present invention, when a terminal selects a carrier, the terminal obtains a congestion condition parameter of a resource pool used by each of at least one carrier of the terminal; and if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal can select a carrier by delaying a specified time, so as to send data in an Internet-of-vehicles system.

Description

Data transmission method and terminal, network device in vehicle networking

Technical field

The invention relates to a vehicle networking technology, in particular to a data transmission method, a terminal and a network device in a vehicle networking.

Background technique

The vehicle networking system adopts a terminal-to-terminal direct communication method with higher spectral efficiency and lower transmission delay. In the Internet of Vehicles system, two types of terminals are generally considered, one is a Vehicle User Equipment (VUE) and the other is a Pedestrian User Equipment (PUE).

In the Internet of Vehicles system, the communication between the terminal and the terminal may be based on various wireless communication systems, such as a Long Term Evolution (LTE) system. In wireless communication systems, multi-carrier technology has been used as a method of expanding system bandwidth. In multi-carrier mode, multiple carriers can serve one terminal, and each carrier is also called a component carrier.

However, the prior art does not teach how to transmit data in a car network system.

Summary of the invention

Aspects of the present invention provide a data transmission method in a car network, a terminal, and a network device for transmitting data in a car network system.

An aspect of the present invention provides a data transmission method in a vehicle network, including:

When the terminal performs carrier selection, the terminal acquires at least one carrier of the terminal. The congestion condition parameter of the resource pool used by each carrier;

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal delays the specified time for carrier selection.

Another aspect of the present invention provides a data transmission method in another vehicle networking, including:

When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal randomly selects a specified number of carriers from the at least one carrier for data transmission.

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal selects a specified number of carriers with the smallest congestion condition parameter from the at least one carrier for data transmission.

If the congestion condition parameter of the resource pool used by each carrier is greater than the first congestion threshold configured by the carrier, the terminal sends indication information to the network device, where The congestion condition parameter of the resource pool used by each carrier is greater than the first congestion threshold configured by the carrier;

The terminal receives a second congestion threshold configured by each of the carriers sent by the network device, so that the terminal performs carrier selection.

The network device receives the indication information sent by the terminal, where the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier;

The network device sends a second congestion threshold configured by each of the carriers to the terminal, so that the terminal performs carrier selection.

When the terminal performs the carrier selection, the terminal acquires a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal;

And if the congestion condition parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal sends indication information to the network device, where the first used by each carrier is used. The congestion parameter of the resource pool is greater than the congestion threshold configured by the carrier.

The terminal receives the configuration information sent by the network device, and configures a second resource pool for the terminal, so that the terminal performs carrier selection.

The network device receives the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than the congestion threshold configured by the carrier;

The network device sends configuration information to the terminal, to configure a second resource pool for the terminal, so that the terminal performs carrier selection.

In another aspect of the present invention, a terminal is provided, including:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

The delay unit is configured to delay the specified time for carrier selection if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier.

In another aspect of the present invention, another terminal is provided, including:

And a selecting unit, configured to: if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, randomly select a specified number of carriers from the at least one carrier for data transmission.

a selecting unit, configured to: if the congestion condition of the resource pool used by each carrier is And being greater than the congestion threshold configured by the carrier, and selecting, by using the at least one carrier, the specified number of carriers with the smallest congestion condition parameter to perform data transmission.

a sending unit, configured to send, to the network device, indication information, if the congestion condition parameter of the resource pool used by each of the carriers is greater than a first congestion threshold configured by the carrier, The congestion condition parameter of the resource pool is greater than the first congestion threshold configured by the carrier;

And a receiving unit, configured to receive a second congestion threshold configured by each of the carriers sent by the network device, for performing carrier selection.

Another aspect of the present invention provides a network device, including:

The receiving unit is configured to receive the indication information sent by the terminal, where the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier;

And a sending unit, configured to send, to the terminal, a second congestion threshold configured by each of the carriers, where the terminal performs carrier selection.

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal;

a sending unit, configured to send, to the network device, indication information, if the congestion condition parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier, The congestion condition parameter of the first resource pool is greater than the congestion threshold configured by the carrier;

And a receiving unit, configured to receive configuration information sent by the network device, to configure a second resource pool for the terminal, where the terminal performs carrier selection.

In another aspect of the present invention, another network device is provided, including:

The receiving unit is configured to receive the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than a congestion threshold configured by the carrier;

And a sending unit, configured to send configuration information to the terminal, to configure a second resource pool for the terminal, where the terminal performs carrier selection.

According to the foregoing technical solution, on the one hand, when the terminal performs the carrier selection, the terminal obtains the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that The congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, and the terminal can delay the specified time for carrier selection, thereby implementing data transmission in the vehicle networking system.

According to the foregoing technical solution, on the other hand, when the terminal performs the carrier selection, the terminal obtains the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that Describe the congestion of the resource pool used by each carrier The parameter is greater than the congestion threshold configured by the carrier, and the terminal can randomly select a specified number of carriers from the at least one carrier for data transmission, thereby implementing data transmission in the vehicle networking system.

According to the foregoing technical solution, on the other hand, when the terminal performs the carrier selection, the terminal obtains the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that The congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, and the terminal can select a specified number of carriers with the smallest congestion parameter from the at least one carrier to perform data transmission, thereby Data transmission in the vehicle networking system is realized.

According to the foregoing technical solution, on the other hand, when the terminal performs carrier selection, the terminal obtains, by the terminal, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal, and further The congestion condition parameter of the resource pool used by each carrier is greater than the first congestion threshold configured by the carrier, and the terminal can send indication information to the network device to indicate the resource pool used by each carrier. The congestion condition parameter is greater than the first congestion threshold configured by the carrier, so that the terminal can receive the second congestion threshold configured by each of the carriers sent by the network device, so that the terminal performs carrier selection, thereby Data transmission in the vehicle networking system is realized.

According to the foregoing technical solution, on the other hand, the embodiment of the present invention receives the indication information sent by the terminal by using the network device, and is used to indicate that the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the The first congestion threshold configured by the carrier, so that The network device can send the second congestion threshold configured by each carrier to the terminal, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

According to the foregoing technical solution, on the other hand, when the terminal performs the carrier selection, the terminal obtains the congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal, and further If the congestion condition parameter of the first resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal can send indication information to the network device, where used to indicate resources used by each carrier. The congestion parameter of the pool is greater than the congestion threshold configured by the carrier, so that the terminal can receive configuration information sent by the network device, and configured to configure a second resource pool for the terminal, so that the terminal performs carrier selection. Thereby, data transmission in the vehicle networking system is realized.

According to the foregoing technical solution, on the other hand, the network device receives the indication information sent by the terminal, and is used to indicate that the congestion condition of the first resource pool used by each carrier in the at least one carrier of the terminal is The congestion threshold configured by the carrier is configured to enable the network device to send configuration information to the terminal, to configure a second resource pool for the terminal, so that the terminal performs carrier selection, thereby implementing the vehicle networking system. Data is sent in.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings in the description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

FIG. 1 is a schematic flowchart diagram of a data sending method in a vehicle networking according to an embodiment of the present invention;

2 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention;

3 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention;

4 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention;

FIG. 5 is a schematic flowchart of another method for sending data in a vehicle network according to another embodiment of the present invention;

FIG. 6 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention;

FIG. 7 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another terminal according to another embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of another terminal according to another embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another terminal according to another embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a network device according to another embodiment of the present invention;

FIG. 13 is a schematic structural diagram of another terminal according to another embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another network device according to another embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the Internet of Vehicles system, the communication between the terminal and the terminal may be based on various wireless communication systems, such as a Long Term Evolution (LTE) system. It is a sidelink (SL) transmission technology, which is different from the way that data is received or transmitted through a network device in a conventional wireless communication system. The vehicle networking system adopts a terminal-to-terminal direct communication method, and thus has a more High spectral efficiency and lower transmission delay.

In addition, the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist at the same time. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

FIG. 1 is a schematic flowchart of a data sending method in a vehicle networking according to an embodiment of the present invention, as shown in FIG. 1 .

101. When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal.

102. If the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal delays the specified time for carrier selection.

So far, data transmission in the car network system has been realized.

In the present invention, the terminal involved may be an in-vehicle terminal, or may be a handheld terminal having a listening capability, which is not particularly limited in this embodiment.

It should be noted that the handheld terminal involved in the embodiments of the present invention may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless handheld device, a tablet computer, and a personal computer (Personal Computer, PC), MP3 player, MP4 player, wearable device (for example, smart glasses, smart watches, smart bracelets, etc.). The vehicle-mounted terminal involved in the embodiment of the present invention may also be referred to as a vehicle, and refers to an abbreviation of an in-vehicle infotainment product installed in a car. The function of the vehicle is to realize a person and a car, a vehicle and an outside world (a vehicle) Information communication with the car).

In the present invention, the specific time at which execution of 101 to 102 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of this embodiment, the congestion condition parameter of the resource pool used by each carrier may be that each terminal of the terminal sends a resource pool on each of the carriers. The congestion condition parameter, or may be a congestion condition parameter of the transmission resource pool that the terminal is using on each carrier, or may also be an abnormal resource pool of the terminal on each carrier ( The congestion condition parameter of the Exceptional pool) is not specifically limited in this embodiment.

Optionally, in a possible implementation manner of the embodiment, the congestion condition parameter of the resource pool used by each carrier may be a Channel Busy Ratio (CBR), or may further reflect The parameter of the degree of congestion of the resource pool is not particularly limited in this embodiment.

Optionally, in a possible implementation manner of the embodiment, the value of the congestion threshold configured by each carrier may be the same value, or may be a different value. For example, this is not particularly limited.

Optionally, in a possible implementation manner of this embodiment, in 102, the value of the specified time may be a random value, or may also be a value pre-stored in the terminal.

Optionally, in a possible implementation manner of this embodiment, before 102, the terminal may further pre-configure the specified time.

In a specific implementation process, the terminal may specifically receive configuration information sent by the network device, and configure the specified time.

Specifically, the network device may be a network element such as an Evolved NodeB (eNB) in the LTE system, which is not specifically limited in this embodiment.

Specifically, the terminal may specifically receive configuration information sent by the network device by using high layer signaling or a system broadcast message.

For example, the high-level signaling may be a radio resource control (RRC) message, and the configuration information may be carried by an information element (IE) in an RRC message, where the RRC message may be existing. The RRC message in the technology, for example, the RRC CONNECTION RECONFIGURATION message, is not limited in this embodiment, and the IE of the existing RRC message is extended to carry the configuration information, or the RRC. The message may also be different from the RRC messages already available in the prior art.

Or, for example, the high-level signaling may be a Media Access Control (MAC) Control Element (CE) message, and specifically, the configuration information may be carried by adding a new MAC CE message.

Alternatively, for example, the existing main information block in the system broadcast message may be specifically adopted. The (Master Information Block, MIB) or (System Information Block, SIB) carries the configuration information, or may add a new SIB to carry the configuration information.

In another specific implementation process, the terminal may specifically configure the specified time according to at least one of network information of the terminal and service information of the terminal.

For example, the network information of the terminal may be a Radio Network Temporary Identity (RNTI) of the terminal, or may be other network information of the terminal, which is not specifically limited in this embodiment.

Or, for example, the service information of the terminal may include at least one of the following information:

The service period of the terminal;

The service delay requirement of the terminal;

The transmission time interval of the service packet of the terminal.

Specifically, the specified time may be configured according to the service period of the terminal, and the value of the specified time is less than or equal to the service period of the terminal, or may be configured according to the service delay requirement of the terminal. The value of the service packet is less than or equal to the service delay of the terminal, or may be configured according to the time interval of the service packet of the terminal, and the value of the specified time is less than or equal to the sending time of the service packet of the terminal. The service information of the specified time is less than or equal to the minimum value of the service information, and is not limited in this embodiment.

In this embodiment, when the terminal performs the carrier selection, the terminal acquires the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that the resource pool used by each carrier is used. The congestion condition parameters are all greater than the congestion threshold configured by the carrier, and the terminal can delay the specified time for carrier selection, thereby implementing the vehicle network. Data is sent in the system.

FIG. 2 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 2 .

201. When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal.

202. If the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal randomly selects a specified number of carriers from the at least one carrier for data transmission.

So far, data transmission in the car network system has been realized.

In the present invention, the specific time at which the execution of 201 to 202 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of the embodiment, the congestion condition parameter of the resource pool used by each carrier may be a Channel Busy Ratio (CBR), or may further reflect The parameter of the congestion level of the resource pool, this implementation For example, this is not particularly limited.

Optionally, in a possible implementation manner of this embodiment, the value of the congestion threshold configured by each carrier may be the same value, or may be a different value, which is not specifically limited in this embodiment. .

Optionally, in a possible implementation manner of this embodiment, in 202, if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal may specifically One or more carriers are randomly selected from the at least one carrier for data transmission.

In this embodiment, when the terminal performs the carrier selection, the terminal acquires the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that the resource pool used by each carrier is used. The congestion condition parameter is greater than the congestion threshold configured by the carrier, and the terminal can randomly select a specified number of carriers from the at least one carrier for data transmission, thereby implementing data transmission in the vehicle networking system.

FIG. 3 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 3.

301. When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal.

302. If the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal selects a specified number of carriers with the smallest congestion parameter from the at least one carrier to perform data. send.

So far, data transmission in the car network system has been realized.

In the present invention, the specific time at which execution of 301 to 302 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of this embodiment, in 302, if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal One or more carriers having the smallest congestion condition parameter are selected from the at least one carrier for data transmission.

In this embodiment, when the terminal performs the carrier selection, the terminal acquires the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that the resource pool used by each carrier is used. The congestion condition parameters are greater than the congestion configured by the carrier. The threshold is that the terminal can select a specified number of carriers with the smallest congestion condition parameter from the at least one carrier for data transmission, thereby implementing data transmission in the vehicle networking system.

FIG. 4 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 4 .

401. When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal.

402. If the congestion condition parameter of the resource pool used by each carrier is greater than the first congestion threshold configured by the carrier, the terminal sends indication information to the network device, where used to indicate the used by each carrier. The congestion condition parameter of the resource pool is greater than the first congestion threshold configured by the carrier.

403. The terminal receives a second congestion threshold configured by each of the carriers sent by the network device, where the terminal performs carrier selection.

So far, data transmission in the car network system has been realized.

In the present invention, the specific time at which execution of 401 to 403 is started can be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of the embodiment, the value of the first congestion threshold or the second congestion threshold configured by each carrier may be the same value, or may also be a different value. For example, this is not particularly limited.

In this embodiment, when the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal, and further, if the resource pool used by each carrier is used. The congestion condition parameter is greater than the first congestion threshold configured by the carrier, and the terminal is configured to send indication information to the network device, where the congestion condition parameter of the resource pool used by each carrier is greater than the carrier configuration. The first congestion threshold is configured to enable the terminal to receive a second congestion threshold configured by each of the carriers sent by the network device, so that the terminal performs carrier selection, thereby implementing data in the vehicle networking system. send.

FIG. 5 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 5.

501. The network device receives the indication information sent by the terminal, where the congestion parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the carrier. The first congestion threshold configured.

502. The network device sends a second congestion threshold configured by each carrier to the terminal, where the terminal performs carrier selection.

So far, data transmission in the car network system has been realized.

In the present invention, the specific time at which execution of 501 to 502 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of the embodiment, the value of the first congestion threshold or the second congestion threshold configured by each carrier may be the same value, or may also be This embodiment is not particularly limited in this embodiment.

In this embodiment, the network device is configured to receive the indication information sent by the terminal, where the congestion parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier. The network device is configured to send a second congestion threshold configured by each of the carriers to the terminal, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

FIG. 6 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 6.

601. When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal.

602. If the congestion condition parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal sends indication information to the network device, where used to indicate the used by each carrier. The congestion condition parameter of the first resource pool is greater than the congestion threshold configured by the carrier.

603. The terminal receives the configuration information sent by the network device, where the terminal allocates a second resource pool for the terminal to perform carrier selection.

So far, data transmission in the car network system has been realized.

It should be noted that the handheld terminal involved in the embodiments of the present invention may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless handheld device, a tablet computer, and a personal computer (Personal Computer, PC), MP3 player, MP4 player, wearable device (for example, smart glasses, smart Can watch, smart bracelet, etc.). The vehicle-mounted terminal involved in the embodiment of the present invention may also be referred to as a vehicle, and refers to an abbreviation of an in-vehicle infotainment product installed in a car. The function of the vehicle is to realize a person and a car, a vehicle and an outside world (a vehicle) Information communication with the car).

In the present invention, the specific time at which execution of 601 to 603 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of the embodiment, the congestion condition parameter of the first resource pool used by each carrier may be a Channel Busy Ratio (CBR), or may be other The parameter that can reflect the degree of congestion of the resource pool is not particularly limited in this embodiment.

Optionally, in a possible implementation manner of this embodiment, in 603, the terminal may specifically receive configuration information sent by the network device by using a high layer signaling or a system broadcast message.

For example, the high-level signaling may be a radio resource control (RRC) message, and the configuration information may be carried by an information element (IE) in an RRC message, where the RRC message may be existing. The RRC message in the technology, for example, the RRC CONNECTION RECONFIGURATION message, is not limited in this embodiment, and the IE of the existing RRC message is extended to carry the configuration information, or the RRC. The message can also be different from the prior art The existing RRC message.

Or, for example, the configuration information may be carried by using an existing Master Information Block (MIB) or a System Information Block (SIB) in the system broadcast message, or a new SIB carrier may be added. Describe the configuration information.

In this embodiment, when the terminal performs carrier selection, the terminal acquires a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal, and further if the carrier is used by the carrier. The congestion condition parameter of the first resource pool is greater than the congestion threshold configured by the carrier, and the terminal is configured to send indication information to the network device, where the congestion parameter of the resource pool used by each carrier is greater than the carrier. The configured congestion threshold is configured to enable the terminal to receive configuration information sent by the network device, to configure a second resource pool for the terminal, so that the terminal performs carrier selection, thereby implementing the method in the vehicle networking system. Data is sent.

FIG. 7 is a schematic flowchart of another method for sending data in a vehicle networking according to another embodiment of the present invention, as shown in FIG. 7.

701. The network device receives the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than a congestion threshold configured by the carrier.

702. The network device sends configuration information to the terminal, where the second resource pool is configured for the terminal, where the terminal performs carrier selection.

So far, data transmission in the car network system has been realized.

In the present invention, the specific time at which execution of 701 to 702 is started may be determined based on the transmission status of the service data of the terminal, for example, the time at which the service data needs to be transmitted.

Optionally, in a possible implementation manner of the embodiment, in 702, the network device may specifically send configuration information to the terminal by using a high layer signaling or a system broadcast message.

In this embodiment, the network device sends the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than the congestion threshold configured by the carrier. The network device is configured to send configuration information to the terminal, to configure a second resource pool for the terminal, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

It should be noted that, for the foregoing method embodiments, the foregoing may be used in combination. For example, after delaying a specified time, the terminal may randomly select a specified number of carriers from the at least one carrier for data transmission, or the terminal may And selecting, by the at least one carrier, a specified number of carriers with the smallest congestion parameter to perform data transmission, or sending indication information to the network device, where used to indicate a congestion condition parameter of the resource pool used by each carrier The congestion threshold configured by the carrier is greater than that of the carrier. The present invention does not specifically limit this.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

FIG. 8 is a schematic structural diagram of a terminal according to another embodiment of the present invention, as shown in FIG. 8. The terminal of this embodiment may include an obtaining unit 81 and a delay unit 82. The obtaining unit 81 is configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in the at least one carrier of the terminal, and a delay unit 82, configured to: The congestion parameter of the used resource pool is greater than the congestion threshold configured by the carrier, and the carrier is selected by delaying the specified time.

Optionally, in a possible implementation manner of this embodiment, the congestion condition parameter of the resource pool used by each carrier may include, but is not limited to, CBR, which is not specifically limited in this embodiment.

Optionally, in a possible implementation manner of the embodiment, the value of the specified time may be a random value or a value pre-stored in the terminal.

Optionally, in a possible implementation manner of the embodiment, the delay unit 82 may be further configured to configure the foregoing according to at least one of network information of the terminal and service information of the terminal. Specify the time; or receive configuration information sent by the network device to configure the specified time.

In a specific implementation process, the network information of the terminal may include, but is not limited to, the RNTI of the terminal, which is not specifically limited in this embodiment.

In another specific implementation process, the service information of the terminal may include, but is not limited to, at least one of the following information:

The service period of the terminal;

The service delay requirement of the terminal;

The transmission time interval of the service packet of the terminal.

It should be noted that the method in the embodiment corresponding to FIG. 1 can be implemented by the terminal provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again.

In this embodiment, when the terminal performs the carrier selection, the acquiring unit acquires the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, so that the delay unit uses the resource used by each carrier. The congestion parameters of the pool are larger than the congestion threshold configured by the carrier, and the carrier selection can be delayed for a specified time, thereby implementing data transmission in the vehicle networking system.

FIG. 9 is a schematic structural diagram of another terminal according to another embodiment of the present invention, as shown in FIG. 9. The terminal of this embodiment may include an obtaining unit 91 and a selecting unit 92. The obtaining unit 91 is configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in the at least one carrier of the terminal, and a selecting unit 92, configured to: The congestion condition parameter of the used resource pool is greater than the congestion threshold configured by the carrier, and the specified number of carriers are randomly selected from the at least one carrier for data transmission.

It should be noted that the method in the embodiment corresponding to FIG. 2 can be implemented by the terminal provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 2, and details are not described herein again.

In this embodiment, when the terminal performs carrier selection, the terminal acquires the terminal by using an acquiring unit. The congestion condition parameter of the resource pool used by each carrier in the at least one carrier, so that the selection unit may be greater than the congestion threshold configured by the carrier if the congestion parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier The specified number of carriers are randomly selected from at least one carrier for data transmission, thereby realizing data transmission in the vehicle networking system.

FIG. 10 is a schematic structural diagram of another terminal according to another embodiment of the present invention, as shown in FIG. 10. The terminal of this embodiment may include an obtaining unit 1001 and a selecting unit 1002. The obtaining unit 1001 is configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in the at least one carrier of the terminal, where the selecting unit 1002 is configured to: The congestion condition parameter of the used resource pool is greater than the congestion threshold configured by the carrier, and the specified number of carriers with the smallest congestion parameter are selected from the at least one carrier for data transmission.

It should be noted that the method in the embodiment corresponding to FIG. 3 can be implemented by the terminal provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 3, and details are not described herein again.

In this embodiment, when the terminal performs carrier selection, the terminal acquires the terminal by using an acquiring unit. The congestion condition parameter of the resource pool used by each carrier in the at least one carrier, so that the selection unit may be greater than the congestion threshold configured by the carrier if the congestion parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier The specified number of carriers with the smallest congestion condition parameter is selected from at least one carrier for data transmission, thereby implementing data transmission in the vehicle networking system.

FIG. 11 is a schematic structural diagram of another terminal according to another embodiment of the present invention, as shown in FIG. The terminal acquiring unit 1101, the transmitting unit 1102, and the receiving unit 1103 of this embodiment. The obtaining unit 1101 is configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in the at least one carrier of the terminal, where the sending unit 1102 is configured to: The congestion condition parameter of the resource pool used is greater than the first congestion threshold configured by the carrier, and the indication information is sent to the network device, where the congestion parameter of the resource pool used by each carrier is greater than the carrier configuration. The first congestion threshold is received by the receiving unit 1103, configured to receive a second congestion threshold configured by each of the carriers sent by the network device, for performing carrier selection.

It should be noted that the method in the embodiment corresponding to FIG. 4 can be provided by the embodiment. Terminal implementation. For details, refer to related content in the embodiment corresponding to FIG. 4, and details are not described herein again.

In this embodiment, when the terminal performs the carrier selection, the acquiring unit acquires the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal, and then the sending unit uses the resource used by each carrier. The congestion parameter of the pool is greater than the first congestion threshold configured by the carrier, and the indication information is sent to the network device, where the congestion parameter of the resource pool used by each carrier is greater than the configured by the carrier. A congestion threshold is configured, so that the receiving unit can receive the second congestion threshold configured by each of the carriers sent by the network device, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

FIG. 12 is a schematic structural diagram of a network device according to another embodiment of the present invention, as shown in FIG. 12 . The network device of this embodiment may include a receiving unit 1201 and a transmitting unit 1202. The receiving unit 1201 is configured to receive indication information that is sent by the terminal, and is used to indicate that a congestion condition parameter of a resource pool used by each carrier in the at least one carrier of the terminal is greater than a first congestion threshold configured by the carrier. The sending unit 1202 is configured to send, to the terminal, a second congestion threshold configured by each of the carriers, so that the terminal performs carrier selection.

It should be noted that the method in the embodiment corresponding to FIG. 5 can be implemented by the network device provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 5, and details are not described herein again.

In this embodiment, the receiving unit sends the indication information sent by the terminal, where the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier. The sending unit is configured to send, to the terminal, a second congestion threshold configured by each of the carriers, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

FIG. 13 is a schematic structural diagram of another terminal according to another embodiment of the present invention, as shown in FIG. The terminal in this embodiment may include an obtaining unit 1301, a transmitting unit 1302, and a receiving unit 1303. The obtaining unit 1301 is configured to acquire, when the terminal performs the carrier selection, a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal, where the sending unit 1302 is configured to: The congestion condition parameter of the first resource pool used by the carrier is greater than the congestion threshold configured by the carrier, and the indication information is sent to the network device, where the congestion parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier; the receiving unit 1303 is configured to receive configuration information sent by the network device, to configure a second resource pool for the terminal, where the terminal performs carrier selection.

Optionally, in a possible implementation manner of this embodiment, the congestion condition parameter of the first resource pool used by each carrier may include, but is not limited to, CBR, which is not specifically limited in this embodiment.

It should be noted that the method in the embodiment corresponding to FIG. 6 can be implemented by the terminal provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 6, and details are not described herein again.

In this embodiment, when the terminal performs the carrier selection, the acquiring unit acquires the congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal, and then the sending unit uses the carrier. The congestion condition parameter of the first resource pool is greater than the congestion threshold configured by the carrier, and the indication information can be sent to the network device, where the congestion parameter of the resource pool used by each carrier is greater than the carrier configuration. The congestion threshold is such that the receiving unit can receive the configuration information sent by the network device, and configured to configure a second resource pool for the terminal to perform carrier selection, thereby implementing data transmission in the vehicle networking system.

FIG. 14 is a schematic structural diagram of another network device according to another embodiment of the present invention, as shown in FIG. 14. The network device receiving unit 1401 and the transmitting unit 1402 of this embodiment. The receiving unit 1401 is configured to receive the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than a congestion threshold configured by the carrier; The sending unit 1402 is configured to send configuration information to the terminal, to configure a second resource pool for the terminal, where the terminal performs carrier selection.

Optionally, in a possible implementation manner of this embodiment, the carrier is configured by using each carrier The congestion condition parameter of the first resource pool used may include, but is not limited to, CBR, which is not specifically limited in this embodiment.

It should be noted that the method in the embodiment corresponding to FIG. 7 can be implemented by the network device provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 7, and details are not described herein again.

In this embodiment, the receiving unit sends the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than the congestion threshold configured by the carrier. The sending unit is configured to send configuration information to the terminal, to configure a second resource pool for the terminal, so that the terminal performs carrier selection, thereby implementing data transmission in the vehicle networking system.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A data transmission method in a vehicle network, characterized in that it comprises:

When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal delays the specified time for carrier selection.
The method according to claim 1, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The method according to claim 1, wherein the congestion threshold configured by each carrier is the same value or a different value.
The method according to claim 1, wherein the value of the specified time is a random value or a value pre-stored in the terminal.
The method according to any one of claims 1 to 4, wherein if the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal delay Before specifying the time for carrier selection, it also includes:

The terminal configures the specified time according to at least one of network information of the terminal and service information of the terminal; or

The terminal receives configuration information sent by the network device, and configures the specified time.
The method according to claim 5, wherein the network information of the terminal comprises an RNTI of the terminal.
The method according to claim 5, wherein the service information of the terminal comprises at least one of the following information:

The service period of the terminal;

The service delay requirement of the terminal;

The transmission time interval of the service packet of the terminal.
The method according to claim 7, wherein the value of the specified time is less than or equal to the service period of the terminal.
The method according to claim 7, wherein the value of the specified time is less than or equal to the service delay requirement of the terminal.
The method according to claim 7, wherein the value of the specified time is less than or equal to the transmission time interval of the service packet of the terminal.
A data transmission method in a vehicle network, characterized in that it comprises:

When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal randomly selects a specified number of carriers from the at least one carrier for data transmission.
The method according to claim 11, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The method according to claim 11 or 12, wherein the congestion threshold configured by each carrier is the same value or a different value.
A data transmission method in a vehicle network, characterized in that it comprises:

When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

If the congestion condition parameter of the resource pool used by each carrier is greater than the congestion threshold configured by the carrier, the terminal selects the congestion condition parameter from the at least one carrier The smallest specified number of carriers for data transmission.
The method according to claim 14, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The method according to claim 14 or 15, wherein the congestion threshold configured by each carrier is the same value or a different value.
A data transmission method in a vehicle network, characterized in that it comprises:

When the terminal performs carrier selection, the terminal acquires a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

If the congestion condition parameter of the resource pool used by each carrier is greater than the first congestion threshold configured by the carrier, the terminal sends indication information to the network device, where the resource pool used by each carrier is indicated. The congestion condition parameters are all greater than the first congestion threshold configured by the carrier;

The terminal receives a second congestion threshold configured by each of the carriers sent by the network device, so that the terminal performs carrier selection.
The method according to claim 17, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The method according to claim 17 or 18, wherein the first congestion threshold or the second congestion threshold configured by each carrier is the same value or a different value.
A data transmission method in a vehicle network, characterized in that it comprises:

The network device receives the indication information sent by the terminal, where the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier;

The network device sends a second congestion threshold configured by each of the carriers to the terminal, so that the terminal performs carrier selection.
The method according to claim 20, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The method according to claim 20 or 21, wherein the first congestion threshold or the second congestion threshold configured by each carrier is the same value or a different value.
A data transmission method in a vehicle network, characterized in that it comprises:

When the terminal performs the carrier selection, the terminal acquires a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal;

And if the congestion condition parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier, the terminal sends indication information to the network device, where the first used by each carrier is used. The congestion parameter of the resource pool is greater than the congestion threshold configured by the carrier.

The terminal receives the configuration information sent by the network device, and configures a second resource pool for the terminal, so that the terminal performs carrier selection.
The method according to claim 23, wherein the congestion condition parameter of the first resource pool used by each carrier comprises a CBR.
The method according to claim 23 or 24, wherein the congestion threshold configured by each carrier is the same value or a different value.
A data transmission method in a vehicle network, characterized in that it comprises:

The network device receives the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than that of the carrier. Set congestion threshold;

The network device sends configuration information to the terminal, to configure a second resource pool for the terminal, so that the terminal performs carrier selection.
The method according to claim 26, wherein the congestion condition parameter of the first resource pool used by each carrier comprises a CBR.
The method according to claim 26 or 27, wherein the congestion threshold configured by each carrier is the same value or a different value.
A terminal, comprising:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

The delay unit is configured to delay the specified time for carrier selection if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier.
The terminal according to claim 29, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The terminal according to claim 29, wherein the congestion threshold configured by each carrier is the same value or a different value.
The terminal according to claim 29, wherein the specified time is a random value.
The terminal according to any one of claims 29 to 32, wherein the delay unit is further used for

And configuring the specified time according to at least one of network information of the terminal and service information of the terminal; or

Receiving configuration information sent by the network device, and configuring the specified time.
The terminal according to claim 33, wherein the network information of the terminal comprises an RNTI of the terminal.
The terminal according to claim 33, wherein the service information of the terminal comprises at least one of the following information:

The service period of the terminal;

The service delay requirement of the terminal;

The transmission time interval of the service packet of the terminal.
The terminal according to claim 35, wherein the value of the specified time is less than or equal to a service period of the terminal.
The terminal according to claim 35, wherein the value of the specified time is less than or equal to a service delay requirement of the terminal.
The terminal according to claim 35, wherein the value of the specified time is less than or equal to the transmission time interval of the service packet of the terminal.
A terminal, comprising:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

And a selecting unit, configured to: if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, randomly select a specified number of carriers from the at least one carrier for data transmission.
The terminal according to claim 39, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The terminal according to claim 39 or 40, wherein the congestion threshold configured by each carrier is the same value or a different value.
A terminal, comprising:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

a selecting unit, configured to: if the congestion condition parameter of the resource pool used by each carrier is greater than a congestion threshold configured by the carrier, select a specified number of carriers with the smallest congestion parameter from the at least one carrier to perform data send.
The terminal according to claim 42, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The terminal according to claim 42 or 43, wherein the congestion threshold configured by each carrier is the same value or a different value.
A terminal, comprising:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of a resource pool used by each carrier in at least one carrier of the terminal;

a sending unit, configured to send, to the network device, indication information, if the congestion condition parameter of the resource pool used by each of the carriers is greater than a first congestion threshold configured by the carrier, The congestion condition parameter of the resource pool is greater than the first congestion threshold configured by the carrier;

And a receiving unit, configured to receive a second congestion threshold configured by each of the carriers sent by the network device, for performing carrier selection.
The terminal according to claim 45, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The terminal according to claim 45 or 46, wherein the first congestion threshold or the second congestion threshold configured by each carrier is the same value or a different number. value.
A network device, comprising:

The receiving unit is configured to receive the indication information sent by the terminal, where the congestion condition parameter of the resource pool used by each carrier in the at least one carrier of the terminal is greater than the first congestion threshold configured by the carrier;

And a sending unit, configured to send, to the terminal, a second congestion threshold configured by each of the carriers, where the terminal performs carrier selection.
The network device according to claim 48, wherein the congestion condition parameter of the resource pool used by each carrier comprises a CBR.
The network device according to claim 48 or 49, wherein the first congestion threshold or the second congestion threshold configured by each carrier is the same value or a different value.
A terminal, comprising:

An acquiring unit, configured to acquire, when the terminal performs carrier selection, a congestion condition parameter of the first resource pool used by each carrier in the at least one carrier of the terminal;

a sending unit, configured to send, to the network device, indication information, if the congestion condition parameter of the first resource pool used by each carrier is greater than a congestion threshold configured by the carrier, The congestion condition parameter of the first resource pool is greater than the congestion threshold configured by the carrier;

And a receiving unit, configured to receive configuration information sent by the network device, to configure a second resource pool for the terminal, where the terminal performs carrier selection.
The terminal according to claim 51, wherein the congestion condition parameter of the first resource pool used by each carrier comprises a CBR.
The terminal according to claim 51 or 52, wherein the congestion threshold configured by each carrier is the same value or a different value.
A network device, comprising:

The receiving unit is configured to receive the indication information sent by the terminal, where the congestion parameter of the first resource pool used by each carrier in the at least one carrier of the terminal is greater than a congestion threshold configured by the carrier;

And a sending unit, configured to send configuration information to the terminal, to configure a second resource pool for the terminal, where the terminal performs carrier selection.
The network device according to claim 54, wherein the congestion condition parameter of the first resource pool used by each carrier comprises a CBR.
The network device according to claim 54 or 55, wherein the congestion threshold configured by each carrier is the same value or a different value.