WO2020125237A1

WO2020125237A1 - Communication method and communication apparatus

Info

Publication number: WO2020125237A1
Application number: PCT/CN2019/115108
Authority: WO
Inventors: 彭文杰; 王君; 戴明增
Original assignee: 华为技术有限公司
Priority date: 2018-12-19
Filing date: 2019-11-01
Publication date: 2020-06-25
Also published as: CN111343667B; CN111343667A

Abstract

A communication method and a communication apparatus, the method comprising: determining a first wireless access technology used for sending first data packets; on the basis of the first wireless access technology, determining a first QoS parameter corresponding to the first data packets; and, on the basis of the first QoS parameter, sending the first data packets to a second communication apparatus by means of a first wireless direct connection communication interface using the first wireless access technology; the communication apparatus has the capability of implementing data transmission by means of the first wireless direct connection communication interface using the first wireless access technology and the capability of implementing data transmission by means of a second wireless direct connection communication interface using a second wireless access technology. Thus, a first QoS parameter recognised by the first wireless direct connection communication interface can be determined according to requirements without changing the existing mechanism for determining the QOS parameter.

Description

Communication method and communication device

Cross-reference of related applications

This application requires the priority of the Chinese patent application filed on December 19, 2018 in the Chinese Patent Office with the application number 201811558769.X and the invention titled "a communication method and communication device", the entire contents of which are incorporated herein by reference Applying.

Technical field

This application relates to the field of communication technology, and in particular, to a communication method and a communication device.

Background technique

With the development of communication technology, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) has proposed a vehicle-to-everything (V2X) based on cellular networks. V2X is a new generation of information and communication technology that connects vehicles to everything. Among them, V stands for vehicles and X stands for any object that interacts with vehicles, such as vehicles, people, and roadside infrastructure and networks. Therefore, V2X interaction The information model can include vehicle-to-vehicle (V2V), vehicle-to-pedestrian (V2P), vehicle-to-infrastructure (V2I) and vehicle-to-network (V2N). Interaction, etc.

In the long term evolution (LTE) system, a set of quality of service (QoS) parameters is introduced for V2X to solve network delay and blocking problems. At present, in the LTE V2X system, the management of QoS parameters is mainly based on single-packet priority (proseper packet priority, PPPP) and single-packet reliability (prose perpacket reliability, PPPR). In the LTE system, the application layer of the communication device usually generates a data packet, and then the application layer sends the data packet and the priority of the specified data packet to the V2X layer. The V2X layer determines the PPPP and the PPPP according to the specified priority of the data packet. /Or PPPR, and then the V2X layer sends the packet, the determined PPPP and/or PPPR to the access stratum (AS) of the communication device, the AS configures PPPP and/or PPPR, and the logical channel or logical channel group Mapping relationship, the AS of the communication device then performs V2X service communication based on PPPP and/or PPPR. For example, if the AS receives two data packets, according to the PPPP and/or PPPR of the two data packets, it is determined that the priority of the data packet a is higher than the data packet b, and the current time-frequency resources are scarce, then the AS can send the data packet first a, and then send the data packet b.

In the new radio (NR) V2X system, the management of QoS parameters is based on QoS flow identification (QoS Flow ID, QFI) and/or 5th generation QoS indicator (5G QoS indicator (5QI). After the V2X layer of the communication device determines the QFI and/or 5QI, the AS configures the mapping relationship between QFI and/or 5QI and the logical channel or logical channel group, and then the AS of the communication device performs V2X service communication based on the QFI and/or 5QI.

However, the QoS management mechanism in the NR V2X system is different from the QoS management mechanism in the LTE V2X system. For example, the LTE V2X system cannot currently recognize the QoS parameters in the NR V2X system, such as QFI and/or 5QI. Therefore, if the existing QoS parameter management mechanism in the LTE V2X system can recognize the QoS parameter in the NR V2X system, the QoS parameter management mechanism in the LTE V2X system needs to be changed, so that the QoS in the LTE V2X system will be increased The complexity of the parameter management mechanism.

Summary of the invention

The present application provides a communication method and a communication device for determining a first QoS parameter that can be recognized by a first wireless direct communication interface without changing the existing mechanism for determining a QoS parameter.

In a first aspect, a communication method provided by the present application includes the first communication device determining a first wireless access technology for sending a first data packet, and the first communication device determining the first wireless access technology according to the first wireless access technology A first QoS parameter corresponding to a data packet. The first communication device sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter. The first communication device has the capability of data transmission through the first wireless direct communication interface applying the first wireless access technology, and the capability of data transmission through the second wireless direct communication interface applying the second wireless access technology The first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the first communication device and other communication devices.

Based on this solution, the first communication device has two data transmission capabilities through a wireless direct communication interface applying wireless access technology. When it is determined that the first wireless direct communication interface is used to send the first data packet, the first The first QoS parameter corresponding to a data packet, the first wireless direct communication interface can recognize the first QoS parameter. In this way, when the first wireless direct communication interface using the first wireless access technology sends the first data packet, the existing mechanism for determining QoS parameters can be changed, and the first wireless direct communication interface can identify the first A QoS parameter.

Exemplarily, the present application provides the following two implementation manners of determining the first wireless access technology for sending the first data packet.

Implementation method one

The first layer of the first communication device receives indication information from the second layer of the first communication device, the indication information is used to indicate the first wireless access technology corresponding to the first service, the first data packet belongs to the first service, the first communication The first layer of the device determines the first wireless access technology for sending the first data packet according to the instruction information.

For the first implementation above, the indication information may include the first wireless access technology, or include the first service, or include the first wireless access technology and the first service, and there is a mapping between the first service and the first wireless access technology relationship.

Optionally, the indication information may further include a communication type, the first layer of the first communication device determines the communication type corresponding to the first service to which the first data packet belongs, and the first layer of the first communication device is based on the first wireless access technology And the communication type, the first QoS parameter is determined. Exemplarily, the communication type includes broadcast, multicast, or unicast.

Radio access technology (RAT) includes LTE and NR. If the first radio access technology is LTE technology, the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is PPPP and /Or PPPR; if the first radio access technology is NR technology, the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is QFI and/or 5QI.

For the case where the first radio access technology is the NR technology, the first QoS parameter may be determined according to the communication type in the indication information. A possible implementation manner, if the communication type is unicast or multicast, the first layer of the first communication device determines that the first QoS parameter is QFI, and if the communication type is broadcast, the first layer of the first communication device determines The first QoS parameter is 5QI. In this way, when the communication type is unicast or multicast, identifying the first QoS parameter by QFI helps to reduce the data transmission amount of the first communication device.

Implementation method two

The first layer of the first communication device receives auxiliary information from the second layer of the first communication device, and the first layer of the first communication device determines the first wireless access technology used to send the first data packet according to the auxiliary information. The information includes at least one of the following: a channel busy rate corresponding to a wireless direct connection communication interface of different wireless access technologies, a priority respectively corresponding to a wireless direct connection communication interface of different wireless access technologies, and covering a current cell of the first communication device The wireless direct connection communication interface of the supported wireless access technology; exemplarily, the first wireless access technology is any one of the wireless access technologies.

In a second aspect, a communication method provided by the present application includes the first communication device determining a second QoS parameter corresponding to a first data packet, and the first communication device acquiring a mapping between the first QoS parameter and the second QoS parameter Relationship, the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship, the first QoS parameter corresponds to the first wireless access technology, and the first communication device according to the first QoS parameter, passes The first wireless direct connection port applying the first wireless access technology sends the first data packet to the second communication device.

Based on this solution, the second QoS parameter of the first data packet is determined. When it is determined that the first communication device uses the first wireless direct connection port of the first wireless access technology to send the first data packet, it is because of the first wireless access The technology corresponds to the first QoS parameter. Through the mapping relationship between the first QoS parameter and the second QoS parameter, the second QoS parameter can be mapped to the first QoS parameter, so that the first communication device can implement the The first wireless direct connection port of a wireless access technology sends the first data packet to the second communication device.

In a possible implementation, the second layer of the first communication device receives the second QoS parameter corresponding to the first data packet from the first layer of the first communication device, and the second layer of the first communication device determines to send For the first wireless access technology of the first data packet, the second layer of the first communication device determines the first QoS parameter according to the second QoS parameter, the mapping relationship, and the first wireless access technology. The first wireless access technology corresponds to the first A QoS parameter.

In a possible implementation manner, the second layer of the first communication device may obtain the indication information, and the second layer of the first communication device determines the first wireless access technology for sending the first data packet according to the indication information, Exemplarily, the indication information is used to indicate the first wireless access technology corresponding to the first service, and the first data packet belongs to the first service.

Optionally, the indication information may include the first wireless access technology, or include the first service, or include the first wireless access technology and the first service, and there is a mapping relationship between the first service and the first wireless access technology.

In a third aspect, a communication method provided by the present application includes the first communication device determining the QoS parameters corresponding to the first data packet sent by the wireless direct communication interface applying different wireless access technologies. The first QoS parameter is determined according to different QoS parameters corresponding to the first data packet, the first QoS parameter corresponds to the first wireless access technology, and the first communication device uses the first wireless access technology to apply the first wireless access technology according to the first QoS parameter. The directly connected communication interface sends the first data packet to the second communication device.

Based on this solution, the first communication device may first determine the QoS parameters corresponding to the first data packets sent through the wireless direct communication interface applying different wireless access technologies, and then select the first QoS parameters from the different QoS parameters, In this way, the first communication device can flexibly select the required first QoS parameter according to actual requirements.

Exemplarily, the present application provides the following two implementation manners for determining the first QoS parameter.

Implementation manner 1: Select the first QoS parameter corresponding to the first data packet sent from the QoS parameter level.

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device, and the second layer of the first communication device satisfies preset different QoS parameters corresponding to the first data packet The conditional QoS parameter is determined as the first QoS parameter.

Implementation manner 2: by determining the first wireless access technology for sending the first data packet.

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device, and the second layer of the first communication device determines the radio access technology corresponding to the first service, which is the first In wireless access technology, the first data packet belongs to the first service, and the second layer of the first communication device determines the QoS parameter corresponding to the first wireless access technology from different QoS parameters corresponding to the first data packet, which is the first QoS parameter.

For the second implementation manner described above, a possible implementation manner is that the second layer of the first communication device obtains the indication information, and the second layer of the communication device determines that the first service corresponds to the first wireless access technology according to the indication information, and the indication information It is used to indicate the first wireless access technology corresponding to the first service.

Optionally, the indication information includes the first wireless access technology and/or the first service, and there is a mapping relationship between the first service and the first wireless access technology.

In a possible implementation manner, different wireless access technologies include NR and LTE, and the first layer of the first communication device determines that the QoS parameters corresponding to the first data packet sent through the wireless direct communication interface applying NR are QFI and/or Or 5QI; the first layer of the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying LTE is the service priority PPPP and/or the service reliability requirement PPPR.

In a fourth aspect, a communication method provided by the present application includes the first communication device determining a first wireless access technology for sending a first data packet; the first communication device determining the first wireless access technology according to the first wireless access technology The first QoS parameter corresponding to a data packet; the first communication device sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter; the first communication The device has the capability of data transmission through the first wireless direct communication interface applying the first wireless access technology, and the capability of data transmission through the second wireless direct communication interface applying the second wireless access technology, the first The wireless direct connection communication interface and the second wireless direct connection communication interface are communication interfaces between the first communication device and other communication devices.

Implementation manner 1: The first communication device obtains indication information, and the first communication device determines the first wireless access technology for sending the first data packet according to the indication information, and the indication information is used to indicate the first wireless access corresponding to the first service Into the technology, the first data packet belongs to the first business.

For the first implementation manner described above, the indication information includes the first wireless access technology and/or the first service, and there is a mapping relationship between the first service and the first wireless access technology.

In a possible implementation, if the first wireless access technology is LTE technology, the first communication device determines that the first QoS parameter corresponding to the first data packet is PPPP and/or PPPR; if the first wireless access technology For the NR technology, the first communication device determines that the first QoS parameter corresponding to the first data packet is QFI and/or 5QI.

Optionally, the indication information further includes a communication type, and the communication type includes broadcast, multicast, or unicast. In a possible implementation manner, the first communication device determines the communication type corresponding to the first service to which the first data packet belongs, and the first communication device determines the first QoS parameter according to the first wireless access technology and the communication type. For the case where the first wireless access technology is NR technology, if the communication type is unicast or multicast, the first communication device determines that the first QoS parameter is QFI; if the communication type is broadcast, the first communication device determines the first The QoS parameter is 5QI. In this way, when the communication type is unicast or multicast, identifying the first QoS parameter by QFI helps to reduce the data transmission amount of the first communication device.

Implementation manner 2: The first communication device obtains auxiliary information, and the first communication device determines the first wireless access technology for sending the first data packet according to the auxiliary information. The auxiliary information includes at least one of the following: The channel busy rate corresponding to the wireless direct connection communication interface, the priority corresponding to the wireless direct connection communication interface of different wireless access technologies respectively, and the wireless direct connection communication interface covering the wireless access technology supported by the current cell of the first communication device; Exemplarily, the first wireless access technology is any one of the wireless access technologies.

In a fifth aspect, a communication method provided by the present application includes: the first communication device determines a second quality of service QoS parameter corresponding to the first data packet; the first communication device obtains one of the first QoS parameter and the second QoS parameter Mapping relationship; the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship, the first QoS parameter corresponds to the first wireless access technology; the first communication device according to the first QoS Parameter, sending the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology.

In a possible implementation, the first communication device determines the first wireless access technology for sending the first data packet, and the first wireless access technology corresponds to the first QoS parameter; the first communication device according to the second QoS parameter , The mapping relationship and the first radio access technology to determine the first QoS parameter.

In a possible implementation manner, the first communication device obtains indication information, and the indication information is used to indicate the first wireless access technology corresponding to the first service, and the first communication device determines to send the first data packet according to the indication information The first wireless access technology, the first data packet belongs to the first service.

In a sixth aspect, a communication method provided by the present application, the method includes: a first communication device determines a quality of service QoS parameter corresponding to a first data packet sent by a wireless direct communication interface applying different wireless access technologies; first The communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet, and the first QoS parameter corresponds to the first wireless access technology; the first communication device uses the first wireless access technology according to the first QoS parameter. The first wireless direct communication interface sends the first data packet to the second communication device.

The first communication device determines different QoS parameters corresponding to the first data packet, and the first communication device determines the QoS parameters that satisfy the preset condition among the different QoS parameters corresponding to the first data packet as the first QoS parameter.

The first communication device determines that the wireless access technology corresponding to the first service is the first wireless access technology, and the first data packet belongs to the first service; the first communication device determines the first from the different QoS parameters corresponding to the first data packet The QoS parameter corresponding to a wireless access technology is the first QoS parameter.

For the second implementation manner described above, in a possible implementation manner, the first communication device obtains indication information, and the indication information is used to indicate the first wireless access technology corresponding to the first service; the communication device determines the first service according to the indication information Corresponding to the first wireless access technology.

In a possible implementation manner, different wireless access technologies include NR and LTE, and the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying NR is QFI and/or 5QI; A communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying LTE is PPPP and/or PPPR.

In a seventh aspect, a communication method provided by the present application includes the first layer of the first communication device determining the first wireless access technology for sending the first data packet, and the first layer of the first communication device according to the first A wireless access technology, determining the first QoS parameter corresponding to the first data packet, and according to the first QoS parameter, the second layer of the first communication device uses the first wireless direct connection communication interface applying the first wireless access technology to The second communication device sends the first data packet. The first communication device has a capability of data transmission through a first wireless direct communication interface applying the first wireless access technology, and has a second wireless direct communication interface applying a second wireless access technology For data transmission capabilities, the first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the first communication device and other communication devices.

For the possible implementation manner in this embodiment, reference may be made to the content of the first aspect above, and details are not described herein again.

Based on this solution, the first communication device has two capabilities for data transmission through a wireless direct communication interface applying wireless access technology. The second layer of the first communication device determines to use the first wireless direct communication interface to send the first When a data packet is reported, the first layer of the first communication device is notified so that the first layer of the first communication device determines the first QoS parameter corresponding to the first data packet. The second layer of the first QoS parameter is sent, and the second layer of the first communication device sends the first data packet according to the first QoS parameter. That is, the second layer of the communication device uses the interaction between the first layer and the second layer of the first communication device when sending the first data packet using the first wireless direct communication interface of the first wireless access technology, The first QoS parameter that can be recognized by the first wireless direct communication interface can be determined as needed without changing the existing mechanism for determining the QoS parameter.

In an eighth aspect, a communication method provided by the present application includes the first layer of the first communication device determining the second QoS parameter corresponding to the first data packet, and the second layer of the first communication device acquiring the first QoS parameter and For the mapping relationship between the second QoS parameters, the second layer of the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship, and the second layer of the first communication device according to the first The QoS parameter sends the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology.

For the possible implementation manner in this embodiment, reference may be made to the content of the second aspect above, and details are not described herein again.

Based on this solution, the second layer of the first communication device obtains the mapping relationship between the first QoS parameter and the second QoS parameter. When the first layer of the first communication device determines the second QoS corresponding to the first data packet Parameters, when the second layer of the first communication device uses the first wireless direct connection port of the first wireless access technology to send the first data packet, the first QoS parameter can be determined according to the mapping relationship and the second QoS parameter, that is, to achieve The second layer of the first communication device obtains the identifiable first QoS parameter, and performs communication according to the identifiable first QoS parameter.

In a ninth aspect, a communication method provided by the present application includes the first layer of the first communication device determining the second QoS parameter corresponding to the first data packet, and the first layer of the first communication device acquiring the first QoS parameter and For the mapping relationship between the second QoS parameters, the first layer of the first communication device determines the first wireless access technology for sending the first data packet, and the first layer of the first communication device determines the The first wireless access technology determines the first QoS parameter corresponding to the first data packet, and the first layer of the first communication device sends the first QoS parameter to the second layer of the first communication device, so that the first communication device Based on the first QoS parameter, the second layer sends the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology.

Based on this solution, the first layer of the first communication device according to the mapping relationship between the first QoS parameter and the second QoS parameter, the second QoS parameter corresponding to the first data packet and the first wireless device used to send the first data packet Access technology, determine the first QoS parameter, and send the first QoS parameter to the second layer of the first communication device, realize that the second layer of the first communication device obtains the first QoS parameter that can be identified, and according to The first QoS parameter that can be identified is used for communication.

According to a tenth aspect, a communication method provided by the present application includes that the first layer of the first communication device determines the QoS parameters corresponding to the respective first data packets sent by the wireless direct communication interface applying different wireless access technologies. The second layer of a communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet, and the second layer of the first communication device according to the first QoS parameter, by applying the first wireless access technology to the first wireless The directly connected communication interface sends the first data packet to the second communication device.

Based on this solution, the first layer of the first communication device first determines the QoS parameters corresponding to the first data packet sent through the wireless direct communication interface applying different wireless access technologies, and then sends different QoS parameters to the second layer, The second layer of the first communication device selects the first QoS parameter from different QoS parameters. Thus, the second layer of the first communication device can flexibly select the required first QoS parameter according to actual needs. Moreover, it can help to reduce the number of interlayer interactions between the first layer of the first communication device and the second layer of the first communication device, which helps to simplify the implementation of the first communication device.

In an eleventh aspect, a communication device provided by the present application includes a first wireless direct connection communication interface, a second wireless direct connection communication interface, and a processor. Optionally, a memory may also be included. The communication device has a data transmission capability through a first wireless direct communication interface applying the first wireless access technology, and a data transmission through a second wireless direct communication interface applying a second wireless access technology ability. When the communication device includes a memory, the memory is used to store instructions; the processor is used to execute the instructions stored in the memory and control the first wireless direct communication interface or the second wireless direct communication interface to send data, when the processor executes the memory When the stored instruction is used, the communication device is configured to execute the first aspect, any method of the first aspect, the second aspect, the method of the second aspect, the third aspect, the method of the third aspect, The fourth aspect, any method of the fourth aspect, the fifth aspect, the any method of the fifth aspect, the sixth aspect, the any method of the sixth aspect, the seventh aspect, the any of the seventh aspect The method, the eighth aspect, any one of the eighth aspects, the ninth aspect, the any one of the ninth aspects, the tenth aspect, or the tenth aspect.

Exemplarily, the communication device provided by the present application may be a terminal device having a corresponding function, a vehicle having a corresponding communication function, or a vehicle-mounted communication device or a communication chip having a corresponding communication function, and the communication device may also be A chip for implementing a corresponding communication function, which can be applied to a terminal device or a vehicle or a vehicle-mounted communication device having a corresponding communication function.

In a twelfth aspect, the present application provides a communication device for implementing the foregoing first aspect, any one of the methods of the first aspect, the second aspect, any one of the methods of the second aspect, the third aspect, the third aspect Any one of the methods, the fourth aspect, the any of the fourth aspects, the fifth aspect, the any of the fifth aspects, the sixth aspect, the any of the sixth aspects, the seventh aspect, the first Any one of the seven aspects, the eighth aspect, the eighth aspect, the ninth aspect, the ninth aspect, the tenth aspect, or the tenth aspect, including the corresponding The functional modules are used to implement the steps in the above method. The function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

In some possible designs, the structure of the communication device includes a processing unit and multiple interfaces. These units and interfaces can perform the corresponding functions in the above method examples. For details, refer to the detailed description in the method examples, and details are not described here.

Exemplarily, the functions of the first layer in the foregoing communication device and the functions of the second layer of the communication device may be implemented by corresponding software modules, or hardware circuits, or hardware executing software, respectively.

In a thirteenth aspect, the present application provides a computer-readable storage medium having instructions stored therein, which when executed on a computer, causes the computer to execute the first aspect and any possible implementation manner of the first aspect The method in the second aspect and any possible implementation of the second aspect The method in the third aspect and any possible implementation of the third aspect The method in the fourth aspect and any possible implementation of the fourth aspect The method, the fifth aspect, and any possible implementation of the fifth aspect are the method, the sixth aspect, or any possible implementation of the sixth aspect, the seventh aspect, and the seventh aspect Method, eighth aspect, any possible implementation of the eighth aspect, method, ninth aspect, or any possible implementation of the ninth aspect, method, tenth aspect, or tenth aspect In any possible implementation.

In a fourteenth aspect, the present application provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the method of the first aspect, any possible implementation manner of the first aspect, the second aspect, the first aspect Method in any possible implementation of the second aspect, third aspect, method in any possible implementation of the third aspect, fourth aspect, method in any possible implementation of the fourth aspect, fifth aspect, Method in any possible implementation of the fifth aspect, sixth aspect, method in any possible implementation of the sixth aspect, seventh aspect, method in any possible implementation of the seventh aspect, eighth aspect The method in any possible implementation manner of the eighth aspect, the ninth aspect, the method in any possible implementation manner of the ninth aspect, the tenth aspect, or the method in any possible implementation manner of the tenth aspect.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

2 is a schematic flowchart of a communication method provided by an embodiment of the present application;

3 is a schematic flowchart of another communication method provided by an embodiment of the present application;

4 is a schematic flowchart of another communication method provided by an embodiment of the present application;

5 is a schematic structural diagram of each level of a communication device according to an embodiment of the present application;

6 is a schematic flowchart of another communication method provided by an embodiment of the present application;

7 is a schematic flowchart of a communication process provided by an embodiment of the present application;

8 is a schematic flowchart of another communication process provided by an embodiment of this application;

9 is a schematic flowchart of another communication method provided by an embodiment of the present application;

10 is a schematic flowchart of another communication process provided by an embodiment of the present application;

11 is a schematic flowchart of another communication method provided by an embodiment of the present application;

12 is a schematic flowchart of another communication process provided by an embodiment of the present application;

13 is a schematic flowchart of another communication method provided by an embodiment of the present application;

14 is a schematic flowchart of another communication process provided by an embodiment of the present application;

15 is a schematic structural diagram of a communication device according to an embodiment of this application;

16 is a schematic structural diagram of a communication device according to an embodiment of the present application.

detailed description

FIG. 1 exemplarily shows a schematic structural diagram of a communication system to which an embodiment of the present application is applicable. The communication system may include network equipment and communication devices. FIG. 1 illustrates an example in which the communication system includes one network device and two communication devices. As shown in FIG. 1, the communication system includes a network device 100, a communication device 101, and a communication device 102.

The network device 100 can communicate with the communication device 101 and the communication device 102 in a wireless manner, for example, through a Uu air interface.

Communication between the communication device 101 and the communication device 102 can be performed in a wireless manner, for example, it can be transmitted through a sidelink (Sidelink, SL) air interface. The SL air interface can also be called a wireless direct communication interface, or a side link air interface . The side link is defined for direct communication between the communication device 101 and the communication device 102. That is to say, the communication between the communication device 101 and the communication device 102 does not need to be forwarded by the base station. The communication device has the capability of performing data transmission through a wireless direct communication interface applying wireless access technology. The wireless direct communication interface is a communication interface between the communication device 101 or the communication device 102 and other communication devices, or the communication device 101 A communication interface with the communication device 102.

The communication devices (such as the communication device 101 and the communication device 102 in FIG. 1) may support the first wireless access technology and the second wireless access technology. It can also be understood that the communication device has the capability of data transmission through the first wireless direct communication interface applying the first wireless access technology, and has the data through the second wireless direct communication interface applying the second wireless access technology For transmission capabilities, the first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the communication device and other communication devices.

For example, the communication device 101 may use the first wireless direct communication interface of the first wireless access technology of the communication device 101 to send data to the communication device 102. Correspondingly, the communication device 102 can apply the first wireless direct communication interface of the first wireless access technology of the communication device 102 to receive data.

For another example, the communication device 102 may apply the first wireless direct communication interface of the first wireless access technology of the communication device 102 to send data to the communication device 101. Correspondingly, the communication device 101 can apply the first wireless direct communication interface of the first wireless access technology of the communication device 101 to receive data.

The communication system architecture may be the architecture of a V2X communication system. The communication system in the embodiments of the present application may be an LTE wireless communication system, or an NR wireless communication system, and so on. Among them, the wireless access technology used in the LTE wireless communication system is LTE technology, and the wireless access technology used in the NR wireless communication system is NR technology.

It should be noted that the NR wireless communication system may also be called a 5th generation (5th generation, 5G) wireless communication technology.

The network device may be an evolved base station eNB in the LTE wireless communication system, and may be a base station gNB in the NR wireless communication system.

The communication device may be, for example, an in-vehicle device, roadside infrastructure (such as traffic lights, traffic cameras, road test units, etc.), a mobile phone, a tablet computer, or the like. The communication device can support LTE V2X communication and NR V2X communication. The communication device may be operated in the LTE wireless communication system and the NR wireless communication system respectively, or may be switched from the LTE wireless communication system to the NR wireless communication system, or from the NR wireless communication system to the LTE wireless communication system. The communication device may not operate in the communication system, that is, the communication device is outside the cell coverage. When the communication device is outside the cell coverage, the communication can be performed through the SL air interface. Among them, the communication device can perform multiple services at the same time, and different services can have different QoS requirements.

It should be understood that the terms “first”, “second”, etc. in the embodiments of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. "And/or" is used to describe the association relationship of related objects, indicating that there can be three kinds of relationships, for example, "A and/or B" can mean: there are only A, only B, and A and B at the same time , Where A and B can be singular or plural.

The communication method for solving the problems in the background art provided by the present application will be described below with reference to FIG. 1. The first communication device may be the communication device 101 in FIG. 1 described above, and the second communication device may be the communication device 102 in FIG. 1 described above. Alternatively, the first communication device may be the communication device 102 in FIG. 1 described above, and the second communication device may be the communication device 101 in FIG. 1 described above. The first communication device and the second communication device can communicate based on the first service. Any data packet sent by the first communication device to the second communication device may be referred to as a first data packet, and the first data packet may be video data. A packet in the stream. It can also be a data packet in the picture data stream, a data packet in the voice data stream, or a data packet in other data streams. The wireless access technology refers to that the wireless medium connects the first communication device to the network device or the second communication device, respectively, so as to realize the transmission of the data packet. The wireless access technology may also be called a communication standard, including but not limited to LTE technology and NR technology. In a possible implementation manner, the two wireless access technologies that both the first communication device and the second communication device can support are the LTE technology and the NR technology, respectively. If the first wireless access technology is LTE technology, the second wireless access technology is NR technology; if the first wireless access technology is NR technology, then the second wireless access technology is LTE technology.

It should be noted that this application does not specifically limit the QoS parameters corresponding to NR V2X SL. For ease of understanding, the following embodiment uses QFI and/or 5QI as an example. For example, 5QI may be dedicated to V2X The 5QI may be different from the 5QI on the Uu interface or the same as the 5QI on the Uu interface, which is not specifically limited in this application.

As shown in Figs. 2-12, schematic diagrams of different communication methods provided by the present application can be used to solve the problems in the background art. Among them, FIGS. 2 to 4 are different implementation solutions introduced from the perspective of the communication device, and FIGS. 5 to 12 are different implementation solutions introduced from the perspective of the internal layers of the communication device and the interaction between the layers. Each is explained below.

As shown in FIG. 2, it is a schematic flowchart of a communication method provided by this application. The method includes the following steps:

Step 201: The first communication device determines the first wireless access technology used to send the first data packet.

As an example, the present application provides the following two implementation manners to determine the first wireless access technology for sending the first data packet.

Implementation method one

The first communication device may acquire indication information, and determine the first wireless access technology for sending the first data packet according to the indication information. Exemplarily, the indication information is used to indicate the first wireless access technology corresponding to the first service, The first data packet belongs to the first service. In this application, the first service may also be an identification service or a service type, which is not limited in this application. In a possible implementation manner, the first communication device may acquire the first indication information from the base station, or may acquire the indication information from the core network (for example, a CF node in the core network or other nodes with V2X control functions), You can also configure the first indication information yourself.

In a possible implementation manner, the indication information may include the first wireless access technology. There is a mapping relationship between the first radio access technology and the first service. Exemplarily, the indication information includes multiple wireless access technologies arranged in order. The first communication device may acquire multiple services arranged in sequence. The order of the wireless access technology list is consistent with the order of the service list. The default wireless access Each entry in the list corresponds to each entry in the wireless access technology list. After the first communication device obtains the wireless access technology and the first data packet arranged in sequence, first determine the first service to which the first data packet belongs, and determine the wireless access technology according to the position of the first service in the service list The item at the same position in the list is the first wireless access technology corresponding to the first service.

In another possible implementation manner, the indication information includes the first service. There is a mapping relationship between the first service and the first radio access technology. Exemplarily, the radio access technology corresponding to the first service included in the indication information is the first radio access technology, and the radio access technology corresponding to the service not included in the indication information is the second radio access technology. Or, the radio access technology corresponding to the first service included in the indication information is the second radio access technology, and the radio access technology corresponding to the service not included in the indication information is the first radio access technology. The first communication device determines that the first data packet belongs to the first service, and may determine that the wireless access technology used to send the first data packet is the first wireless access technology.

In yet another possible implementation manner, the indication information may include the first service and the first wireless access technology, and there is a mapping relationship between the first service and the first wireless access technology. When the first communication device determines that the first data packet belongs to the first service, it can directly determine the first wireless access technology that has a mapping relationship with the first service.

Implementation method two

The first communication device acquires auxiliary information, and determines the first wireless access technology for sending the first data packet according to the auxiliary information. The auxiliary information includes at least one of the following: channel busy rate (CBR) corresponding to wireless direct connection communication interfaces of different wireless access technologies, priority corresponding to wireless direct connection communication interfaces of different wireless access technologies, A wireless direct communication interface covering a wireless access technology supported by the current cell of the first communication device; exemplarily, the first wireless access technology is any one of the wireless access technologies.

In some embodiments, if the current cell covering the first communication device only supports LTE V2X, the first communication device may determine to send the first data packet through LTE V2X SL. If the current cell covering the first communication device only supports NR V2X, the first communication device may determine to send the first data packet through NR V2X SL.

In other embodiments, the wireless access technology supported by the current cell covering the first communication device may not be considered, that is, it may be understood to cover the LTE V2X and NR V2X supported by the current cell of the first communication device. The first communication device may determine the first wireless device for transmitting the first data packet according to the measurement result of the directly connected communication interfaces of different wireless access technologies, and/or the priority of the directly connected communication interfaces of different wireless access technologies Access technology. The measurement result may be CBR. For example, in implementation manner a, if the first communication device determines that the measurement result of LTE V2X SL is worse than the measurement result of NR V2X SL, for example, the CBR corresponding to LTE V2X SL is greater than the CBR corresponding to NR V2X SL, that is, the load ratio of LTE V2X SL to NR V2X If the load of SL is high, it can be determined that NR V2X SL is used to send the first data packet, that is, the first wireless access technology used to send the first data packet is the NR technology. Implementation method b, if the first communication device determines that the measurement result of LTE V2X SL is better than the measurement result of NR V2X SL, for example, the first communication device determines that the CBR corresponding to LTE V2X SL is not greater than the CBR corresponding to NRV2X SL, that is, the load of LTE V2X SL If the load is lower than that of NR V2X SL, it can be determined that LTE V2X SL is used to send the first data packet, that is, the first wireless access technology used to send the first data packet is LTE technology. Implementation manner c, if the first communication device determines that the measurement result of LTE V2X SL is poor and the measurement result of NR V2X SL is better, for example, the first communication device determines that the CBR corresponding to LTE V2X SL meets the first threshold and NR V2X If the CBR corresponding to the SL does not satisfy the second threshold, it may be determined that the first radio access technology used to send the first data packet is the NR technology. Implementation method d, if the first communication device determines that the measurement result of LTE V2X SL is better, and determines that the measurement result of NR V2X SL is poor, for example, the first communication device determines that the CBR corresponding to LTE V2X SL does not meet the first threshold, and the NR The CBR corresponding to V2X SL meets the second threshold, and it can be determined that the first wireless access technology for sending the first data packet is the LTE technology. Implementation method e. For some V2X services, LTE, V2X, SL have priority; for other V2X services, NR, V2X, SL, etc. In a possible implementation, the first communication device may first obtain V2X from the core network or base station or locally The RAT V2X SL priority configuration corresponding to the service. Implementation method f, if the first communication device determines that the measurement result of LTE V2X SL is close to the measurement result of NR V2X SL, for example, the first communication device determines that the CBR corresponding to LTE V2X SL does not meet the first threshold, and the corresponding value of NR V2X SL The CBR meets the second threshold and can determine the priority of the first service to which the first data packet belongs.

In this application, the auxiliary information acquired by the first communication device may be by detecting the quality information of V2X SL, for example, measuring the CBR of LTE V2X SL and NR V2X SL, or obtaining measurement results based on other reference signals, for example, based on channel state information (channel state information, CSI) reference signal or synchronization channel block (synchronization signal block, SSB) measurement results obtained by measurement. It may also be that the first communication device defines priorities of different V2X services according to preset rules.

Step 202: The first communication device determines the first QoS parameter corresponding to the first data packet according to the first wireless access technology.

In a possible implementation manner, different RAT SLs may have different mechanisms for specifying QoS, which may make QoS parameters different under different wireless access technologies. Exemplarily, if the first wireless access technology is LTE technology, the first communication device determines that the first QoS parameter corresponding to the first data packet is PPPP and/or PPPR; if the first wireless access technology is NR technology, then The first communication device determines that the first QoS parameter corresponding to the first data packet is QFI and/or 5QI.

Optionally, the first communication device may determine the communication type corresponding to the first service to which the first data packet belongs, and determine the first QoS parameter according to the first wireless access technology and the communication type. The communication type includes broadcast, multicast, or Unicast. In a possible implementation, if the first wireless access technology is NR technology and the communication type is unicast or multicast, the first communication device determines that the first QoS parameter is QFI, if the first wireless access technology If it is NR technology and the communication type is broadcast, the first communication device determines that the first QoS parameter is 5QI. In this way, when the communication type is unicast or multicast, the first communication device in the communication process can learn the specific QoS requirements corresponding to QFI through the previous configuration interaction. Therefore, the first QoS parameter can be identified by QFI, This helps reduce the amount of data transmitted by the first communication device. For the broadcast service, there is no negotiation between the two parties of communication. Therefore, the communication device at the sending end carries 5QI information when sending data, and the communication device at the receiving end can directly learn the corresponding QoS requirements through the 5QI without relying on prior negotiation.

Step 203: The first communication device sends the first data packet to the second communication device according to the first QoS parameter through the first wireless direct communication interface to which the first wireless access technology is applied.

For example, if the first communication device determines that the first QoS parameter is PPPP and/or PPPR, the first communication device sends the first data to the second communication device through the wireless direct communication interface using LTE according to PPPP and/or PPPR package.

For another example, if the first communication device determines that the first QoS parameter is QFI and/or 5QI, the first communication device sends the first to the second communication device through the wireless direct communication interface using NR according to the QFI and/or 5QI data pack.

It should be noted that in this application, the first communication device sends the first data packet to the second communication device does not limit the existence of a connection between the first communication device and the second communication device, that is, the first communication device may be broadcast, Send data in either unicast or multicast. For the broadcast communication method, the first communication device sends data in a broadcast manner, and the received communication device at this time may be any second communication device that is interested in the V2X service or V2X service type to which the data belongs.

It can be seen from the above steps 201 to 203 that the first communication device has two data transmission capabilities through a wireless direct communication interface applying wireless access technology, and when it is determined that the first wireless direct communication interface is used to send the first data During the packet, the first QoS parameter corresponding to the first data packet can be determined, and the first wireless direct communication interface can recognize the first QoS parameter. In this way, when the first wireless direct communication interface using the first wireless access technology sends the first data packet, the existing mechanism for determining QoS parameters can be changed, and the first wireless direct communication interface can identify the first A QoS parameter.

In a possible scenario, the cellular network where the first communication device is currently located is a cellular network of the second wireless access technology, that is, the core network currently connected to the first communication device is the core network of the second wireless access technology, However, the first communication device selects the first wireless direct communication interface applying the first wireless access technology to send the first data packet to the second communication device. For example, if the first communication device is currently located is NR cellular network (i.e., system 5G), NR a core network connected to a core network, i.e., the fifth-generation core network ^{(5 th generation core, 5GC)} , but The first communication device selects LTE V2X SL for communication. Or, if the cellular network where the first communication device is currently is an LTE network (that is, in a 4G system), the connected core network is an LTE core network, that is, an evolved packet core (EPC), but the first The communication device selects NR V2X SL for communication. For this scenario, FIG. 3 is a schematic flowchart of another communication method provided by this application. As shown in Figure 3, the method includes the following steps:

Step 301: The first communication device determines the second QoS parameter corresponding to the first data packet.

Exemplarily, the first communication device may determine the second QoS parameter corresponding to the first data packet according to the wireless access technology of the cellular network where the first communication device is currently located. Exemplarily, if the cellular network where the first communication device is currently is an NR network and the connected core network is 5GC, it may be determined that the second QoS parameter corresponding to the first data packet is QFI and/or 5QI. If the cellular network where the first communication device is currently located is an LTE network, that is, the connected core network is EPC, it may be determined that the second QoS parameter corresponding to the first data packet is PPPP and/or PPPR. It can also be understood that the cellular network where the first communications device is currently located is an NR network, and the first communications device may map QFI and/or 5QI by default; the cellular network where the first communications device is currently located is an LTE network, and the first communications device may By default, PPPP and/or PPPR are mapped.

Step 302: The first communication device obtains the mapping relationship between the first QoS parameter and the second QoS parameter.

Exemplarily, the mapping relationship between the first QoS parameter and the second QoS parameter may be obtained by the first communication device from the base station, or may be obtained from a V2X control function (CF) node of the core network, Or it may be configured by the first communication device itself. In a possible implementation manner, the first communication device may configure the mapping relationship between the first QoS parameter and the second QoS parameter according to a preset rule specified in the protocol.

There is no sequence between step 301 and step 302. Step 301 can be executed before step 302; step 301 can be executed first, and then step 302 can be executed; or step 301 and step 302 can be executed together.

Step 303: The first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship.

Exemplarily, the first QoS parameter corresponds to the first radio access technology.

In a possible implementation, if the first communication device determines that the second QoS parameter is QFI and/or 5QI, the first communication device maps out according to the mapping relationship between QFI and/or 5QI and PPPP and/or PPPR PPPP and/or PPPR corresponding to the first data packet. If the first communication device determines that the second QoS parameter is PPPP and/or PPPR, the first communication device maps the QFI and/or corresponding to the first data packet according to the mapping relationship between QFI and/or 5QI and PPPP and/or PPPR Or 5QI.

In a possible implementation manner, the first communication device determines the first wireless access technology for sending the first data packet, and determines the first QoS parameter according to the second QoS parameter, the mapping relationship, and the first wireless access technology , The first radio access technology corresponds to the first QoS parameter. Optionally, the first communication device determines the first wireless access technology used to send the first data packet. For details, reference may be made to the introduction of implementation manner 1 and implementation manner 2 in step 201 in FIG. 2 above, and details are not described herein again.

Step 304: The first communication device sends the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology according to the first QoS parameter.

For this step, please refer to the introduction of step 203 in FIG. 2 above, which will not be repeated here.

It can be seen from the above steps 301 to 304 that the second QoS parameter of the first data packet is determined, and when it is determined that the first communication device uses the first wireless direct connection port of the first wireless access technology to send the first data packet, Because the first wireless access technology corresponds to the first QoS parameter, the second QoS parameter can be mapped to the first QoS parameter through the mapping relationship between the first QoS parameter and the second QoS parameter, thereby implementing the first communication device The first data packet is sent to the second communication device according to the first QoS through the first wireless direct connection port applying the first wireless access technology.

FIG. 4 exemplarily shows a schematic flowchart of another communication method provided by an embodiment of the present application. As shown in Figure 4, the method includes the following steps:

Step 401: The first communication device determines the QoS parameters corresponding to the first data packet sent by the wireless direct connection communication interface applying different wireless access technologies.

Exemplarily, the QoS parameter applied when the first data packet is sent by the wireless direct connection communication interface of NR is QFI and/or 5QI; the QoS parameter applied when the first data packet is sent by the wireless direct connection communication interface of LTE is PPPP and/or PPPR. In a possible implementation manner, the first communication device may determine to send the QFI and/or 5QI corresponding to the first data packet through the wireless direct connection communication interface using NR, and to send the first through the wireless direct connection communication interface using LTE. PPPP and/or PPPR corresponding to a data packet.

Step 402: The first communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet.

Exemplarily, this application provides two implementation manners of determining the first QoS parameter.

Implementation method one

The first communication device determines different QoS parameters corresponding to the first data packet, and determines the QoS parameters that satisfy the preset condition among the different QoS parameters corresponding to the first data packet as the first QoS parameter. For example, the first communication device determines two different sets of QoS parameters, respectively PPPP and/or PPPR, and QFI and/or 5QI, if PPPP and/or PPPR meets the first preset condition, and/or, QFI and /Or 5QI satisfies the second preset condition, it is determined that PPPP and/or PPPR are the first QoS parameters; if PPPP and/or PPPR meet the third preset condition, and/or, QFI and/or 5QI meet the fourth preset condition If the conditions are set, it is determined that QFI and/or 5QI are the first QoS parameters. The first preset condition, the second preset condition, the third preset condition, and the fourth preset condition may be acquired by the first communication device from the core network, may also be acquired from the base station, or may be the first The communication device configures itself according to the protocol preset rules.

Implementation method two

The first communication device determines that the wireless access technology corresponding to the first service is the first wireless access technology, and the first communication device determines the QoS parameter corresponding to the first wireless access technology from different QoS parameters corresponding to the first data packet as The first QoS parameter, the first data packet belongs to the first service. For the implementation manner of the first communication device determining the radio access technology corresponding to the first service, reference may be made to implementation manner 1 and implementation manner 2 in step 201 above, and details are not described herein again.

Step 403: According to the first QoS parameter, the first communication device sends the first data packet to the second communication device through the first wireless direct connection communication interface to which the first wireless access technology is applied.

As can be seen from the above steps 401 to 403, the first communication device may first determine the QoS parameters corresponding to the first data packet sent by the wireless direct communication interface applying different wireless access technologies, and then select from the different QoS parameters The first QoS parameter is selected, so that the first communication device can flexibly select the required first QoS parameter according to actual needs.

FIG. 5 exemplarily shows a schematic structural diagram of each level of a communication device provided by an embodiment of the present application. In this example, the communication device may be any one of the communication device 101 and the communication device 102 in FIG. 1 described above, or may be any first communication device in FIG. 2 to FIG. 4 described above. As shown in FIG. 5, the architecture of the communication device includes a first layer 501, a second layer 502, and a third layer 503. In any of the following embodiments, the first layer may be a car to all V2X layers, the second layer may be an AS layer, and the third layer may be an application layer. FIG. 5 is only an example. In addition to the three layers illustrated in the figure, there may be other layers, and the invention is not limited thereto.

The first layer 501 is used to determine QoS parameters.

The second layer 502 is mainly used for the communication device to communicate with other communication devices and/or network equipment (e.g., base stations). For example, optical fiber, twisted pair, wireless access technology and other transmission media can be used for connection. In a possible implementation manner, the second layer 502 may include a Uu port access layer (Access Stratum, AS) 502a, an LTE V2X access layer 502b, and an NR V2X access layer 502c. The access layer 502a of the Uu port is used to receive information from the network device, for example, receive resource information and/or configuration information allocated by the network device for the first communication device. Exemplarily, the access layer 502a of the Uu port may be a radio resource control (Radio Resourcce Control, RRC) layer of the Uu port. The access layer 502b of LTE V2X is used to receive PPPP and/or PPPR from the transmission of the first layer 501; the access layer 502c of NR V2X is used to receive 5QI and/or QFI from the first layer 501.

In this application, the first layer 501 of the first communication device sends the QoS parameters to the second layer 502 of the first communication device, which can be divided into the following three scenarios. Case 1: When the first layer of the first communication device sends the first data packet to the access layer 502b of LTE V2X, the QoS parameters carried are PPPP and/or PPPR. Case 2: When the first layer of the first communication device sends the first data packet to the NR V2X access layer 502c, the QoS parameters carried are QFI and/or 5QI. Case 3: When the first layer 501 of the first communication device sends the first data packet to the second layer 502, the QoS parameters carried include PPPP and/or PPPR, and QFI and/or 5QI. Case three may also be: when the first layer of the first communication device sends the first data packet to the access layer 502c of NR V2X, the QoS parameters carried are QFI and/or 5QI, and, PPPP and/or PPPR, to LTE When the access layer 502b of the V2X sends the first data packet, the QoS parameters carried are QFI and/or 5QI, and, PPPP and/or PPPR. The third situation is that the first layer 501 of the first communication device cannot recognize the LTE V2X access layer 502b and the NR V2X access layer 502c in the second layer 502.

For the first case, the LTE V2X access layer 502b of the first communication device sends the first data packet to the second communication device through the wireless direct communication interface using LTE according to the received PPPP and/or PPPR. For the second scenario above, the access layer 502c of the NR V2X of the first communication device sends the first data packet to the second communication device through the wireless direct communication interface using NR according to the received QFI and/or 5QI. For the third scenario above, if the LTE V2X access layer 502b of the first communication device determines that the first data packet corresponds to LTE V2X, the NR V2X access layer 502c of the first communication device discards the first data packet, and the first According to the received PPPP and/or PPPR, the access layer 502b of the LTE V2X of the communication device sends the first data packet to the second communication device through the wireless direct communication interface applying LTE; if the NR of the first communication device connects to V2X When the incoming layer 502c determines that the first data packet corresponds to NR V2X, the LTE V2X access layer 502b of the first communication device discards the first data packet, and the NR V2X access layer 502c of the first communication device according to the received QFI and /Or 5QI, sending the first data packet to the second communication device through the wireless direct communication interface using NR.

The third layer 503 is used to generate V2X data packets and send the generated data packets to the first layer 501.

In a possible implementation, the communication device shown in FIG. 5 may have a data transmission capability through a first wireless direct communication interface applying the first wireless access technology, and a second wireless access technology through the application The second wireless direct communication interface has the ability to perform data transmission. The first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the communication device and other communication devices.

Referring to the content shown in FIG. 5 above, the communication method shown in FIG. 2 is introduced. As shown in FIG. 6, it is a schematic flowchart of another communication method provided by the present application. The first communication device in this example may be any of the communication device 101 and the communication device 102 in FIG. 1 described above, or may be the first communication device in FIG. 2 described above, or may be the first in FIG. 5 described above. Communication device. As shown in Figure 6, the method includes the following steps:

Step 601: The first layer of the first communication device determines the first wireless access technology for sending the first data packet.

In a possible implementation, the second layer of the first communication device may receive the indication information from the base station, and then, the second layer of the first communication device sends the received indication information to the first layer of the first communication device. Accordingly, the first layer of the first communication device receives the instruction information from the second layer of the first communication device. In another possible implementation manner, the indication information may also be sent by the CF node of the core network to the first layer of the first communication device. In another possible implementation manner, the indication information may also be configured by the first layer of the first communication device according to a protocol preset rule.

Exemplarily, with reference to FIG. 5 above, two first wireless access technologies determined to be used for sending the first data packet are provided, which are implementation mode 1 and implementation mode 2, respectively.

In a first implementation manner, the first layer of the first communication device determines the first wireless access technology for sending the first data packet according to the instruction information.

The first layer of the first communication device receives the instruction information from the second layer of the first communication device, and the first layer of the first communication device determines the first wireless access technology for transmitting the first data packet according to the instruction information, the first A data packet belongs to the first service, and the indication information is used to indicate the first wireless access technology corresponding to the first service. By sending instruction information to the first layer of the first communication device at the second layer of the first communication device, the first layer of the first communication device can determine the first wireless access for the first communication device to send the first data packet The first wireless direct communication interface corresponding to the technology, so that the second layer of the first communication device determines the first QoS parameter that can be recognized by the first layer of the first communication device according to the first wireless access technology.

In this embodiment, for the indication information, refer to the introduction of the indication information in the first implementation manner of step 201 in FIG. 2 described above, and details are not described herein again.

Implementation manner 2: The first layer of the first communication device determines the first wireless access technology used to send the first data packet according to the auxiliary information.

Exemplarily, the auxiliary information may include at least one of the following: a channel busy rate (CBR) corresponding to wireless direct connection communication interfaces of different wireless access technologies, and wireless direct connection communication interfaces of different wireless access technologies respectively Corresponding priority, a wireless direct communication interface covering the wireless access technology supported by the current cell of the first communication device; exemplarily, the first wireless access technology is any one of the wireless access technologies.

In this application, it may be that the second layer of the first communication device obtains auxiliary information, and the second layer of the first communication device sends the obtained auxiliary information to the first layer of the first communication device. The layer determines the first wireless access technology for sending the first data packet according to the auxiliary information sent by the second layer. Sending auxiliary information to the first layer of the first communication device through the second layer of the first communication device can make the wireless access technology determined by the first layer of the first communication device more in line with the real environment.

For a detailed introduction of auxiliary information in this embodiment, reference may be made to the second implementation manner in step 201 of FIG. 2 above, and details are not described herein again.

Step 602: The first layer of the first communication device determines the first QoS parameter corresponding to the first data packet according to the first wireless access technology.

In a possible implementation, if the first wireless access technology is LTE technology, the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is PPPP and/or PPPR; if the first The wireless access technology is the new air interface NR technology, and the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is QFI and/or 5QI.

Optionally, the first layer of the first communication device may determine the communication type corresponding to the first service to which the first data packet belongs, and the communication type includes broadcast, multicast, or unicast. In a possible implementation manner, if the first wireless access technology is the NR technology and the communication type is unicast or multicast, the first layer of the first communication device determines that the first QoS parameter is QFI. If the first radio access technology is NR technology and the communication type is broadcast, the first layer of the first communication device determines that the first QoS parameter is 5QI. In this way, when the communication type is unicast or multicast, the first communication device in the communication process can learn the specific QoS requirements corresponding to QFI through the previous configuration interaction. Therefore, the first QoS parameter can be identified by QFI, This helps reduce the amount of data transmitted by the first communication device. For the broadcast service, there is no negotiation between the two parties of communication. Therefore, the communication device at the sending end carries 5QI information when sending data, and the communication device at the receiving end can directly learn the corresponding QoS requirements through the 5QI without relying on prior negotiation.

Step 603: The second layer of the first communication device sends the first data packet to the second communication device through the first wireless direct connection communication interface applying the first wireless access technology according to the first QoS parameter.

It can be seen from the above steps 601 to 603 that the first communication device has two data transmission capabilities through a wireless direct communication interface applying wireless access technology, and the second layer of the first communication device is determining to use the first wireless When the directly connected communication interface sends the first data packet, the first layer of the first communication device is notified, so that the first layer of the first communication device determines the first QoS parameter corresponding to the first data packet, and the first The first layer sends the first QoS parameter to the second layer of the first communication device, and the second layer of the first communication device sends the first data packet according to the first QoS parameter. That is, the second layer of the first communication device uses the interaction between the first layer and the second layer of the first communication device when sending the first data packet using the first wireless direct communication interface of the first wireless access technology, The first QoS parameter recognized by the first wireless direct connection communication interface can be determined as needed without changing the existing QoS parameter management mechanism in the LTE V2X system.

In order to more clearly introduce the flow of the communication method shown in FIG. 6 above, it may be described in conjunction with the first implementation manner in FIG. 5 and step 601 above. FIG. 7 exemplarily shows a schematic flowchart of a communication process provided by the present application. In this example, the first layer is a V2X layer, the second layer is an AS layer, and the third layer is an application layer. As shown in Figure 7, the process includes the following steps:

In step 701, the application layer may first trigger the AS layer to establish a connection (as shown by the dotted line).

This step is optional.

In step 702, the AS layer obtains the indication information.

Exemplarily, for the detailed process of the AS layer acquiring the indication information, reference may be made to the introduction of step 601 in FIG. 6 above, and details are not described herein again.

In step 703, the AS layer sends instruction information to the V2X layer.

Accordingly, the V2X layer receives instruction information from the AS layer.

Step 704: The application layer sends the first data packet to the V2X layer.

Accordingly, the V2X layer receives the first data packet from the application layer.

Here, the first data packet belongs to the first service.

There is no order between step 703 and step 704. Step 703 can be executed first and then step 704 can be executed, or step 704 can be executed first and then step 703 can be executed; step 703 and step 704 can also be executed together. If step 703 is performed first, the V2X layer may directly determine the first wireless access technology used to send the first data packet after step 704. If step 704 is performed first, the first data packet needs to be cached. After step 704, the first wireless access technology used to send the first data packet is determined.

Step 705: The V2X layer determines the first wireless access technology for sending the first data packet according to the first service and the indication information to which the first data packet belongs.

For this step, reference may be made to the introduction of implementation manner 1 in step 601 in FIG. 6 above, and details are not described herein again.

Step 706: The V2X layer determines the first QoS parameter corresponding to the first data packet according to the first wireless access technology.

Step 707, the V2X layer sends the first QoS parameter and the first data packet to the AS layer.

Correspondingly, the AS layer receives the first QoS parameter and the first data packet.

Step 708: The AS layer sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

For this step, reference may be made to the introduction of step 603 in FIG. 6 described above, and details are not described here.

Optionally, with reference to the implementation manner 2 in FIG. 5 and step 601 described above, the first layer is still a V2X layer, the second layer is an AS layer, and the third layer is an application layer. FIG. 8 exemplarily shows a schematic flowchart of another communication process provided by the present application. As shown in Figure 8, the process includes the following steps:

In step 801, the application layer may first trigger the AS layer to establish a connection (shown by a dotted line).

This step is optional.

In step 802, the AS layer obtains auxiliary information.

Here, for the detailed process of the AS layer acquiring the auxiliary information, reference may be made to the description of step 601 in FIG. 6, which is not repeated here.

In step 803, the AS layer sends auxiliary information to the V2X layer.

Accordingly, the V2X layer receives auxiliary information from the AS layer.

Step 804: The application layer sends the first data packet to the V2X layer.

There is no order between step 803 and step 804. Step 803 can be executed first and then step 804, or step 804 can be executed first, and then step 803 can be executed. Step 803 and step 804 can also be executed together. If step 803 is performed first, the V2X layer may directly determine the first wireless access technology used to send the first data packet after step 804. If step 804 is performed first, the first data packet needs to be cached. After step 804, the first wireless access technology used to send the first data packet is determined.

Step 805, the V2X layer may determine the first wireless access technology for sending the first data packet according to the auxiliary information.

For this step, reference may be made to the introduction of implementation manner 2 in step 601 in FIG. 6 above, and details are not described herein again.

In step 806, the V2X layer may determine the first QoS parameter corresponding to the first data packet according to the first wireless access technology.

Step 807, the V2X layer sends the first QoS parameter and the first data packet to the AS layer.

Step 808: The AS layer sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

In the first possible scenario, the cellular network where the first communication device is currently located is the cellular network of the second wireless access technology, but the second layer of the first communication device selects the first by applying the first wireless access technology. The wireless direct connection communication interface sends the first data packet to the second communication device. For example, if the cellular network where the first communication device is currently located is an NR network, and the connected core network is NR 5GC, the second layer of the first communication device selects LTE V2X SL for communication. Or, if the cellular network where the first communication device is currently located is an LTE network and the connected core network is EPC, but the second layer of the first communication device chooses to use NR V2X SL for communication.

For the first possible scenario, the communication method shown in FIG. 3 will be described in conjunction with the architecture of the first communication device shown in FIG. 5 above. FIG. 9 exemplarily shows a schematic flowchart of another communication method provided by an embodiment of the present application. The first layer of the first communication device may be the first layer 501 in FIG. 5 above, the second layer of the first communication device may be the second layer 502 in FIG. 5 above, and the third layer of the first communication device may be The third layer 503 in FIG. 5 described above. As shown in Figure 9, the method includes the following steps:

Step 901: The first layer of the first communication device determines the second QoS parameter corresponding to the first data packet.

Exemplarily, the first layer of the first communication device may determine the second QoS parameter corresponding to the first data packet according to the wireless access technology of the cellular network where the first communication device is currently located.

Exemplarily, if the cellular network where the first communication device is currently located is an LTE network, but the first communication device selects NR V2X SL for communication, the first layer of the first communication device may determine the second QoS of the first data packet by default The parameters are PPPP and/or PPPR. If the cellular network where the first communication device is currently is an NR network and the connected core network is 5GCC, but the first communication device selects LTE V2X SL for communication, the first layer of the first communication device may determine the The second QoS parameter is QFI and/or 5QI.

Step 902, the first layer of the first communication device sends the second QoS parameter to the second layer of the first communication device.

Accordingly, the second layer of the first communication device receives the second QoS parameter from the first layer of the first communication device.

Step 903: The second layer of the first communication device obtains the mapping relationship between the first QoS parameter and the second QoS parameter.

In a possible implementation manner, the mapping relationship between the first QoS parameter and the second QoS parameter may be obtained from the base station by the second layer of the first communication device, that is, the base station configures the first communication device with the first QoS The mapping relationship between the parameter and the second QoS parameter. Exemplarily, if the current wireless access technology of the first communication device is the NR technology, the second QoS parameter is QFI and/or 5QI, when the base station determines the first wireless access corresponding to the first service to which the first data packet belongs If the technology is LTE technology, the base station configures the mapping relationship between QFI and/or 5QI and PPPP and/or PPPR for the first communication device, that is, the second layer of the first communication device obtains QFI and/or 5QI and PPPP and /Or the mapping relationship between PPPR. If the current wireless access technology of the first communication device is LTE technology, the second QoS parameter is PPPP and/or PPPR, and when the base station determines that the first wireless access technology corresponding to the first service to which the first data packet belongs is NR technology , The base station configures the mapping relationship between QFI and/or 5QI and PPPP and/or PPPR for the first communication device, that is, the second layer of the first communication device obtains the QFI and/or 5QI and PPPP and/or PPPR from the base station Mapping relationship.

In another possible implementation manner, the mapping relationship between the first QoS parameter and the second QoS parameter may also be the first layer of the first communication device from the core network (such as a CF node in the core network, or Other nodes of the V2X control function), the first layer of the first communication device sends the mapping relationship between the first QoS parameter and the second QoS parameter to the second layer of the first communication device, and accordingly, the first communication device The second layer of receives the mapping relationship between the first QoS parameter and the second QoS parameter from the first layer of the first communication device.

In yet another possible implementation manner, the mapping relationship between the first QoS parameter and the second QoS parameter may also be configured by the first communication device according to a preset rule specified in the protocol.

After step 901 above, step 902 is executed; there is no order between step 901 and step 903, step 901 can be executed first, then step 902 can be executed, and then step 903 can be executed; step 903 can also be executed first, and then step 901 and step 902 ; Or Step 901, Step 902 and Step 903 are executed together.

Step 904: The second layer of the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship.

Optionally, if the first layer of the first communication device sends the first data packet and the corresponding second QoS parameter to the second layer of the first communication device: QFI and/or 5QI, the second layer of the first communication device According to the mapping relationship between QFI and/or 5QI and PPPP and/or PPPR, the first QoS parameters corresponding to the first data packet are mapped: PPPP and/or PPPR. Exemplarily, the second layer of the first communication device may It is the access layer 502b of LTE V2X in FIG. If the first layer of the first communication device sends the first data packet and the corresponding second QoS parameter to the second layer of the first communication device: PPPP and/or PPPR, the second layer of the first communication device according to QFI and/or Or the mapping relationship between 5QI and PPPP and/or PPPR, mapping out the first QoS parameter corresponding to the first data packet: QFI and/or 5QI. Exemplarily, the second layer of the first communication device may be in FIG. 5 NR V2X access layer 502c. In a possible implementation, the second layer of the first communication device receives the second QoS parameter corresponding to the first data packet from the first layer of the first communication device; the second layer of the first communication device determines to send The first wireless access technology of the first data packet; the second layer of the first communication device determines the first QoS parameter according to the second QoS parameter, the mapping relationship, and the first wireless access technology. The first wireless access technology corresponds to the first A QoS parameter.

With reference to FIG. 5 above, a situation is that both the LTE V2X access layer 502b and the NR V2X access layer 502c of the first communication device can receive the first data packet and its corresponding from the first layer of the first communication device QFI and/or 5QI, the RRC layer of the Uu port determines that the first service to which the first data packet belongs corresponds to LTE V2X, then the NR V2X access layer 502c discards the first data packet, and the LTE V2X access layer 502b is based on QFI And/or 5QI, the mapping relationship, and the LTE V2X determined by the RRC of the Uu port, determine the PPPP and/or PPPR corresponding to the first data packet. Another situation is that both the LTE V2X access layer 502b and the NR V2X access layer 502c of the first communication device can receive the first data packet and its corresponding PPPP and/or from the first layer of the first communication device PPPR, the RRC layer of the Uu port determines that the first service to which the first data packet belongs corresponds to NR V2X, then the access layer 502b of LTE V2X discards the first data packet, and the access layer 502c of NR V2X is based on PPPP and/or PPPR , The mapping relationship and the NR determined by the RRC of the Uu port V2X, to determine the QFI and/or 5QI corresponding to the first data packet.

In a possible implementation, the second layer of the first communication device determines the implementation of the first wireless access technology used to send the first data packet. Refer to the introduction of step 601 in FIG. 6 above. Repeat again.

In another possible implementation manner, it may be that the second layer of the first communication device selects the first wireless access technology by itself. For the case where the first communication device selects the first radio access technology by itself, the first communication device may notify the base station of the selected first radio access technology, and the base station configures the first QoS parameter and the second QoS parameter for the first communication device Mapping relationship. It may also be that the second layer of the first communication device configures the mapping relationship between the first QoS parameter and the second QoS parameter after selecting the first wireless access technology.

Step 905: The second layer of the first communication device sends the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology according to the first QoS parameter.

It can be seen from the above steps 901 to 905 that the second layer of the first communication device acquires the mapping relationship between the first QoS parameter and the second QoS parameter. When the first layer of the first communication device determines that the first The second QoS parameter corresponding to the data packet. When the second layer of the first communication device uses the first wireless direct connection port of the first wireless access technology to send the first data packet, the second QoS parameter may be determined according to the mapping relationship and the second QoS parameter. The first QoS parameter is obtained, that is, the second layer of the first communication device obtains the identifiable first QoS parameter, and performs communication according to the identifiable first QoS parameter.

In order to more clearly introduce the above-mentioned communication method flow of FIG. 9, in this example, in conjunction with the above-mentioned FIG. 5, the first layer is a V2X layer, the second layer is an AS layer, and the third layer is an application layer. As shown in FIG. 10, it is another schematic flowchart of a communication process provided by the present application. The process includes the following steps:

In step 1001, the application layer may first establish a connection with the AS layer (as indicated by the dotted line).

This step is optional.

In step 1002, the V2X layer determines that the wireless access technology of the cellular network where the first communication device is currently located is the second wireless access technology.

Step 1003, the V2X layer determines the second QoS parameter corresponding to the first data packet according to the second wireless access technology.

Step 1004, the application layer sends the first data packet to the V2X layer.

Accordingly, the V2X layer receives the first data packet.

Step 1005, the V2X layer sends the second QoS parameter and the first data packet to the AS layer.

Accordingly, the AS layer receives the second QoS parameter and the first data packet.

In step 1006, the AS layer obtains the mapping relationship between the first QoS parameter and the second QoS parameter.

There is no sequence between step 1006 and step 1007. Step 1006 can be executed first and then step 1007 can be executed, or step 1007 can be executed first and then step 1006; step 1006 and step 1007 can also be executed together.

Step 1007: The AS layer determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship between the first QoS parameter and the second QoS parameter.

Step 1008: The AS layer sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

For the first possible scenario, the communication method shown in FIG. 3 will be described in conjunction with the architecture of the first communication device shown in FIG. 5 above. FIG. 11 exemplarily shows a schematic flowchart of another communication method provided by an embodiment of the present application. The first layer of the first communication device may be the first layer 501 in FIG. 5 above, the second layer of the first communication device may be the second layer 502 in FIG. 5 above, and the third layer of the first communication device may be The third layer 503 in FIG. 5 above. As shown in Figure 11, the method includes the following steps:

In step 1101, the first layer of the first communication device determines the second QoS parameter corresponding to the first data packet.

For this step, please refer to the introduction of step 901 above, which will not be repeated here.

Step 1102: The first layer of the first communication device obtains the mapping relationship between the first QoS parameter and the second QoS parameter.

In a possible implementation manner, the mapping relationship between the first QoS parameter and the second QoS parameter may be acquired from the base station by the second layer of the first communication device (for the acquisition process from the base station, see step 903 above Introduction), the second layer of the first communication device sends the mapping relationship to the first layer of the first communication device.

In another possible implementation manner, the mapping relationship between the first QoS parameter and the second QoS parameter may also be the first layer of the first communication device from the core network (such as a CF node in the core network, or V2X control function of other nodes).

Step 1103, the first layer of the first communication device determines the first wireless access technology used to send the first data packet.

For a specific implementation manner of this step, reference may be made to implementation manner 1 in step 601 of FIG. 6 above, and details are not described herein again.

There is no order between step 1102 and step 1103. Step 1102 can be executed first, and then step 1103 can be executed; step 1103 can also be executed first, and then step 1102 is executed.

Step 1104: The first layer of the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter, the mapping relationship, and the first wireless access technology.

For a possible implementation manner of this step, reference may be made to the introduction of step 904 in FIG. 9 above, and details are not described herein again.

Step 1105, the first layer of the first communication device sends the first QoS parameter to the second layer of the first communication device.

Step 1106: The second layer of the first communication device sends the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology according to the first QoS parameter.

For this step, please refer to the description of the above step 905, which will not be repeated here.

In order to more clearly introduce the flow of the communication method in FIG. 11 above, in this example, in combination with the above-mentioned FIG. 5, the first layer is a V2X layer, the second layer is an AS layer, and the third layer is an application layer. As shown in FIG. 12, it is another schematic flowchart of the communication process provided for this application. The process includes the following steps:

In step 1201, the application layer may first establish a connection with the AS layer (as indicated by the dotted line).

This step is optional.

Step 1202, the V2X layer determines that the wireless access technology of the cellular network where the first communication device is currently located is the second wireless access technology.

Step 1203, the V2X layer determines the second QoS parameter corresponding to the first data packet according to the second wireless access technology.

Step 1204, the application layer sends the first data packet to the V2X layer.

Accordingly, the V2X layer receives the first data packet.

In step 1205, the V2X layer obtains the mapping relationship between the first QoS parameter and the second QoS parameter.

This step can be referred to the introduction of 1102 above, and will not be repeated here.

There is no order between step 1204 and step 1205. Step 1204 can be executed first and then step 1205, or step 1205 can be executed first, and then step 1204 can be executed. Step 1204 and step 1205 can also be executed together.

Step 1206, the V2X layer determines the first wireless access technology used to send the first data packet.

For a specific implementation manner of the steps, reference may be made to the implementation manner 1 in step 601 of FIG. 6 above, and details are not described herein again.

Step 1207, the V2X layer determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter, the mapping relationship and the first wireless access technology.

Step 1208, the V2X layer sends the first QoS parameters to the AS layer.

Step 1209, the AS layer sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

In the second possible scenario, the cellular network where the first communication device is currently located is the cellular network of the first wireless access technology, and the second layer of the first communication device uses the first wireless direct technology by applying the first wireless access technology. The communication interface sends the first data packet to the second communication device. For example, if the cellular network where the first communication device is currently located is an NR network, the second layer of the first communication device selects NR V2X SL for communication. If the cellular network where the first communication device is currently located is an LTE network, the second layer of the first communication device selects LTE V2X SL for communication.

For the second scenario, the first layer of the first communication device may determine the first QoS parameter corresponding to the first data packet, and the second layer of the first communication device receives the first QoS parameter from the first layer of the first communication device, And receive the first data packet from the third layer of the first communication device, and the second layer of the first communication device sends the first wireless direct connection port to the second communication device through the first wireless direct connection port according to the first QoS parameter Send the first data packet.

Exemplarily, when the second layer of the first communication device determines that the cellular network where the first communication device is currently located is an LTE network, the second layer of the first communication device sends the first communication device to the first layer of the first communication device Select LTE V2X SL to communicate, the first layer of the first communication device determines the first QoS parameter corresponding to the first data packet as PPPP and/or PPPR according to LTE, and the first layer of the first communication device sends the first communication device The second layer of the device sends PPPP and/or PPPR, and the second layer of the first communication device sends the first data to the second communication device through the first wireless direct connection port applying the first wireless access technology according to PPPP and/or PPPR package. When the second layer of the first communication device determines that the cellular network where the first communication device is currently located is an NR network, the second layer of the first communication device sends the first communication device selection NR V2X SL to the first layer of the first communication device For communication, the first layer of the first communication device determines, according to the NR, that the first QoS parameter corresponding to the first data packet is QFI and/or 5QI. The first layer of the first communication device sends QFI and/or 5QI to the second layer of the first communication device, and the second layer of the first communication device applies the first radio access technology according to the QFI and/or 5QI The wireless direct connection port sends the first data packet to the second communication device.

The communication method shown in FIG. 4 will be described in conjunction with the architecture of the first communication device shown in FIG. 5 described above. FIG. 13 exemplarily shows a schematic flowchart of another communication method provided by an embodiment of the present application. In this example, the first layer of the first communication device may be the first layer 501 in FIG. 5 above, the second layer of the first communication device may be the second layer 502 in FIG. 5 above, and the third The layer may be the third layer 503 in FIG. 5 described above. As shown in Figure 13, the method includes the following steps:

Step 1301: The first layer of the first communication device determines the QoS parameters corresponding to the first data packet sent by the wireless direct connection communication interface applying different wireless access technologies.

In a possible implementation, if different wireless access technologies include LTE and NR, the first layer of the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying NR is QFI and/or 5QI, the first layer of the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying LTE is PPPP and/or PPPR. That is, in this embodiment, the first layer of the first communication device does not distinguish the final selected RAT, and two sets of QoS parameters will be determined, one set is PPPP and/or PPPR used by LTE V2X SL, and the other set is NR V2X SL The used QFI and/or 5QI are sent to the second layer of the first communication device.

With reference to FIG. 5 above, for example, the first layer 501 may send the first data packet and its corresponding PPPP and/or PPPR to the LTE V2X access layer 502b, and send the first data to the NR V2X access layer 502c Packet and its corresponding QFI and/or 5QI; the first layer 501 may also send the first data packet and its corresponding PPPP and/or PPPR to the LTE V2X access layer 502b, and, QFI and/or 5QI, and The first data packet and its corresponding PPPP and/or PPPR, and, QFI and/or 5QI are sent to the access layer 502c of NR V2X.

Step 1302: The second layer of the first communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet.

Based on this embodiment, the present application provides the following two implementation methods for determining the first QoS parameter.

Implementation method one

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device, and the second layer of the first communication device satisfies preset different QoS parameters corresponding to the first data packet The conditional QoS parameter is determined as the first QoS parameter. It can also be understood that the second layer of the first communication device selects a set of QoS parameters as the first QoS parameter from the received two sets of QoS parameters. For example, the second layer of the first communication device receives two sets of QoS parameters from the first layer of the first communication device, respectively PPPP and/or PPPR, and, QFI and/or 5QI, if PPPP and/or PPPR is satisfied The preset conditions determine that PPPP and/or PPPR are the first QoS parameters; if the QFI and/or 5QI satisfy the preset conditions, the QFI and/or 5QI are determined as the first QoS parameters.

Implementation method two

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device; the second layer of the first communication device determines the wireless access technology corresponding to the first service, which is the first In wireless access technology, the first data packet belongs to the first service; the second layer of the first communication device determines the QoS parameter corresponding to the first wireless access technology from different QoS parameters corresponding to the first data packet, which is the first QoS parameter. Exemplarily, it may be that the second layer of the first communication device determines the wireless access technology corresponding to the first service of the first data packet, and if it is the first wireless access technology, the second layer of the first communication device Among the QoS parameters, the first QoS parameter corresponding to the first wireless access technology is selected. Exemplarily, the first layer of the first communication device may send the first QoS parameter and the second QoS parameter to the second layer of the first communication device, and the second layer of the first communication device determines that the first data corresponds to the first For wireless access technology, the first QoS parameter is used to send the first data packet on the first wireless direct connection port of the first wireless access technology. In a possible implementation manner, the second layer of the first communication device determines the radio access technology corresponding to the first service. Refer to the introduction of implementation manner 1 in step 201 of FIG. 2 above, and details are not described herein again. The second layer of the first communication device may also determine the wireless access technology corresponding to the first service through the indication information of the wireless access technology carried by the first layer, that is, at this time, the first layer sends the first data to the second layer The packet also includes the corresponding first QoS parameter, second QoS parameter and indication information of the radio access technology. The second layer of the first communication device determines the wireless access technology of the first data packet according to the indication information of the wireless access technology, and then determines the application of the first QoS parameter or the second QoS parameter. Specifically, if the first data packet corresponds to the wireless The access technology is the first wireless access technology, and the second layer applies the first QoS parameters for data transmission. If the wireless access technology corresponding to the second data packet is the second wireless access technology, the second layer applies the second QoS parameters for data transmission.

With reference to the third scenario in FIG. 5 above, the first QoS parameter is PPPP and/or PPPR, and the second QoS parameter is QFI and/or 5QI as an example. The first layer of the first communication device sends PPPP and/or PPPR to the LTE V2X access layer 502b, and sends QFI and/or 5QI to the NR V2X access layer 502c. After the LTE V2X access layer 502b and the NR V2X access layer 502c both receive the first data packet, the LTE V2X access layer 502b and the NR V2X access layer 502c respectively determine the wireless connection corresponding to the first data packet Technology, the wireless access technology corresponding to the first data packet may be indicated through the first layer, that is, when the first layer sends the first data packet to the LTE V2X access layer 502b and the NR V2X access layer 502c, the The wireless access technology corresponding to the first data packet may be indicated. If the determined radio access technology corresponding to the first data packet is different from the radio access technology of the access layer, the first data packet is not sent; if the radio access type corresponding to the first data packet is determined and the radio of the access layer When the access types are the same, the first data packet is sent by applying the first wireless direct connection port. For example, if the access layer 502b of LTE V2X determines that the wireless access type corresponding to the first data packet is LTE, the first data packet is sent by applying the LTE wireless direct connection port, and if the access layer 502b of LTE V2X determines the first data When the wireless access type corresponding to the packet is not LTE, the first data packet is not sent. For another example, if the access layer 502c of NR V2X determines that the wireless access type corresponding to the first data packet is NR, the first data packet is sent by applying the NR wireless direct connection port, and if the access layer 502c of NR V2X determines the first When the wireless access type corresponding to the data packet is not NR, the first data packet is not sent. Optionally, the implementation layer of the LTE V2X access layer 502b and the NR V2X access layer 502c respectively determine the wireless access technology corresponding to the first data packet. Refer to the introduction of the implementation mode 1 in step 201 of FIG. 2 above. I will not repeat them here.

Exemplarily, the processing after the first layer 501 receives the first data packet from the third layer 503 may be to send the first data packet to the access layer 502b of LTE V2X and the access layer 502c of NR V2X, and send For LTE V2X access layer 502b, PPPP and/or PPPR need to be carried; for NR V2X access layer 502c, it needs to carry QFI and/or 5QI, optionally, to LTE V2X access layer 502b and When the access layer 502c of NR V2X sends the first data packet, it may also indicate the wireless access technology corresponding to the first data packet. After the first layer 501 receives the first data packet from the third layer 503, the processing may be that the first data packet is sent to the second layer 502, and when sent to the second layer 502, it also carries PPPP and/or PPPR, And, QFI and/or 5QI, optionally, when the first layer 501 sends the first data packet to the second layer 502, it may also indicate the radio access technology corresponding to the first data packet. The difference between the two methods is whether the first layer 501 can recognize the LTE V2X access layer 502b and the NR V2X access layer 502c in the second layer 502. If possible, the first layer 501 can send the first data packet and the corresponding QoS parameters carried to the access layer 502b of LTE V2X and the access layer 502c of NR V2X, implicitly One packet performs the copy operation. If it is not possible, the first layer 501 may send the first data packet to the second layer 502, as well as different QoS parameters.

In the second implementation, the second layer of the first communication device determines that the radio access technology corresponding to the first service is the implementation of the first radio access technology. For the implementation of the first radio access technology, refer to the process of step 601 in FIG. 6 above. No longer.

Step 1303, the second layer of the first communication device sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

Exemplarily, it may be that the second layer of the first communication device sends the first data packet to the second communication device through the first wireless direct communication interface applying the first wireless access technology according to the first QoS parameter.

Through the above steps 1301 to 1303, the first layer of the first communication device first determines the respective QoS parameters corresponding to the first data packet sent through the wireless direct communication interface applying different wireless access technologies, and then sends different QoS parameters, the second layer of the first communication device selects the first QoS parameters from different QoS parameters, so that the second layer of the first communication device can flexibly select the required first QoS parameters according to actual needs . Moreover, it can help to reduce the number of interlayer interactions between the first layer of the first communication device and the second layer of the first communication device, which helps to simplify the implementation of the first communication device.

In order to more clearly introduce the flow of the communication method shown in FIG. 13 above, in this example, in combination with FIG. 5 above, the first layer is a V2X layer, the second layer is an AS layer, and the third layer is an application layer. As shown in FIG. 14, it is another schematic flowchart of a communication process provided by the present application.

In step 1401, the application layer may first establish a connection with the AS layer (shown in broken lines).

This step is optional.

Step 1402, the application layer sends the first data packet to the V2X layer.

In step 1403, the V2X layer determines the QoS parameters corresponding to the first data packet sent by the wireless direct communication interface applying different wireless access technologies.

There is no order between step 1402 and step 1403. Step 1402 can be executed first and then step 1403 can be executed, or step 1403 can be executed first and then step 1402 can be executed. Step 1402 and step 1403 can also be executed together.

Step 1404, the V2X layer sends different QoS parameters and the first data packet to the AS layer.

Accordingly, the AS layer receives different QoS parameters and the first data packet from the V2X layer.

Step 1405, the AS layer selects the first QoS parameter from different QoS parameters.

For this step, reference may be made to step 1102 in FIG. 11 described above, and details are not repeated here.

Step 1406: The AS layer sends the first data packet to the second communication device through the first wireless direct connection communication interface applying the first wireless access technology according to the first QoS parameter.

In summary, this application provides multiple communication methods for solving the technical problems in the background art. For example, the method of the embodiment shown in FIG. 2 may be used. Alternatively, the possible implementation manners shown in FIG. 6, FIG. 7, or FIG. 8 may be used. The implementation method shown in FIG. 3 may also be used. Alternatively, the possible implementation manners shown in FIGS. 9, 10, 11, and 12 may be used. The implementation method shown in FIG. 4 may also be used. Alternatively, the possible implementation manners shown in FIG. 13 or 14 may be used.

Based on the above and the same concept, FIG. 15 shows a possible exemplary block diagram of the communication device involved in the embodiment of the present invention. The apparatus 1500 may include a processing unit 1501 and a transceiver unit 1502. As a possible implementation manner, the processing unit 1501 may include a first processing unit and a second processing unit, and the transceiver unit 1502 may include a first transceiver unit and a second transceiver unit. The processing unit 1501 is used to control and manage the operation of the device 1500. The transceiver unit 1502 is used to support communication between the device 1500 and other communication devices. The device 1500 may further include a storage unit 1503 for storing program codes and data of the device 1500. Exemplarily, the functional unit included in the device 1500 may be implemented by software or hardware executing software.

Exemplarily, the processing unit 1501 may be a processor or a controller, such as a general-purpose central processing unit (CPU), a general-purpose processor, digital signal processing (DSP), and an application specific integrated circuit (application specific integrated circuits (ASIC), field programmable gate array (field) programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of the present invention. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, DSP and microprocessor combinations, and so on. The transceiving unit 1502 may be a communication interface, a transceiver, or a transceiving circuit, etc., where the communication interface is a general term, and in a specific implementation, the communication interface may include multiple interfaces. The storage unit 1503 may be a memory.

The device 1500 may be the first communication device in any of the above-mentioned embodiments of FIG. 2 to FIG. 12, or may be a chip used for the first communication device. For example, when the device 1500 is a first communication device, the processing unit may be, for example, a processor, and the transceiver unit may be, for example, a transceiver including a radio frequency circuit, and optionally, the storage unit may be, for example, a memory. For example, when the device 1500 is a chip of the first communication device, the processing unit may be, for example, a processor, and the transceiver unit may be, for example, an input/output interface, a pin, or a circuit. The processing unit may execute computer-executed instructions stored in the storage unit. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc. The storage unit may also be located in the chip in the access network device External storage units, such as read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc.

In the first embodiment, the processing unit 1501 is configured to determine a first wireless access technology for sending a first data packet, and according to the first wireless access technology, determine a first quality of service QoS corresponding to the first data packet Parameters; transceiver unit 1502, for sending a first data packet to the second communication device through the first wireless direct connection communication interface applying the first wireless access technology according to the first QoS parameter; the communication device has a first wireless connection through the application The first wireless direct connection communication interface of the technology is capable of data transmission, and the capability of data transmission through the second wireless direct connection communication interface applying the second wireless access technology, the first wireless direct connection communication interface and the second The wireless direct connection communication interface is a communication interface between the first communication device and other communication devices.

In a possible implementation manner, the transceiving unit 1502 includes a first transceiving unit and a second transceiving unit; the processing unit 1501 includes a first processing unit; the first transceiving unit is configured to: receive indication information from the second transceiving unit, indicating The information is used to indicate the first wireless access technology corresponding to the first service, and the first data packet belongs to the first service; the first processing unit is used to: according to the indication information, determine the first wireless access to send the first data packet Into technology.

In a possible implementation manner, the indication information includes the first wireless access technology and/or the first service, and there is a mapping relationship between the first service and the first wireless access technology.

In a possible implementation, the first processing unit is exemplarily used to: if the first radio access technology is a long-term evolution LTE technology, determine that the first QoS parameter corresponding to the first data packet is single packet priority Level PPPP and/or single-packet reliability requirement PPPR; if the first wireless access technology is the new air interface NR technology, determine the first QoS parameter corresponding to the first data packet as the quality of service flow identifier QFI and/or 5G QoS indicator 5QI.

In a possible implementation, the indication information further includes a communication type; the first processing unit, for example, is used to: determine the communication type corresponding to the first service to which the first data packet belongs, and the communication type includes broadcast and multicast , Or unicast; determine the first QoS parameter according to the first wireless access technology and communication type.

In a possible implementation manner, the first processing unit is, for example, used to: if the first wireless access technology is NR and the communication type is unicast or multicast, determine that the first QoS parameter is QFI; Or, if the first radio access technology is NR and the communication type is broadcast, the first QoS parameter is determined to be 5QI.

In a possible implementation manner, the first transceiver unit is exemplarily used to receive auxiliary information from the second transceiver unit, and the auxiliary information includes at least one of the following: a wireless direct communication interface of different wireless access technologies respectively Corresponding channel busy rate, priority corresponding to wireless direct connection communication interfaces of different wireless access technologies, wireless direct connection communication interface covering wireless access technologies supported by the current cell of the first communication device; exemplary, first The wireless access technology is any one of the wireless access technologies; the first processing unit, for example, is used to: according to the auxiliary information, determine the first wireless access technology for sending the first data packet.

In the second embodiment, the processing unit 1501 is configured to determine a second quality of service QoS parameter corresponding to the first data packet; obtain a mapping relationship between the first QoS parameter and the second QoS parameter; according to the second QoS parameter and Mapping relationship to determine the first QoS parameter corresponding to the first data packet, the first QoS parameter corresponding to the first wireless access technology; the transceiver unit 1502 is configured to apply the first wireless access technology according to the first QoS parameter The wireless direct connection port sends the first data packet to the second communication device.

In a possible implementation manner, the transceiving unit 1502 includes a first transceiving unit and a second transceiving unit; the processing unit 1501 includes a second processing unit; the second transceiving unit is configured to: receive the first data packet from the first transceiving unit The corresponding second QoS parameter; the second processing unit is used to: determine the first wireless access technology for sending the first data packet, the first wireless access technology corresponds to the first QoS parameter; according to the second QoS parameter, mapping Relationship and the first radio access technology, determine the first QoS parameter.

In the third embodiment, the processing unit 1501 is configured to determine the quality of service QoS parameters corresponding to the first data packet sent by the wireless direct communication interface applying different wireless access technologies; according to the different QoS corresponding to the first data packet Parameters to determine the first QoS parameter, the first QoS parameter corresponding to the first wireless access technology; the transceiver unit 1502 is configured to send the first wireless direct communication interface to the first wireless communication technology according to the first QoS parameter The second communication device sends the first data packet.

In a possible implementation manner, the transceiving unit 1502 includes a first transceiving unit and a second transceiving unit; the processing unit 1501 includes a first processing unit and a second processing unit; a second transceiving unit is used to: from the first transceiving unit Receiving different QoS parameters corresponding to the first data packet; a second processing unit, configured to: determine the QoS parameters that satisfy the preset condition among the different QoS parameters corresponding to the first data packet as the first QoS parameters.

In a possible implementation manner, the second transceiver unit is used to: receive different QoS parameters corresponding to the first data packet from the first transceiver unit; the second processing unit is used to: determine the wireless access corresponding to the first service The technology is the first wireless access technology, and the first data packet belongs to the first service; from different QoS parameters corresponding to the first data packet, the QoS parameter corresponding to the first wireless access technology is determined as the first QoS parameter.

In a possible implementation manner, different wireless access technologies include a new air interface NR technology and a long-term evolution LTE technology; the first processing unit, for example, is used to: determine to send the first through the wireless direct connection communication interface applying NR The QoS parameter corresponding to the data packet is the quality of service flow identifier QFI and/or 5G QoS indicator 5QI; it is determined that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface using LTE is the service priority PPPP and/or the service reliability Sexual demand PPPR.

When the device shown in FIG. 15 is the first communication device, for possible implementation manners in the above-mentioned communication method used for execution, reference may be made to the related description in the foregoing method embodiments, and details are not repeated here.

FIG. 16 shows a simplified schematic diagram of a possible design structure of the communication device involved in the embodiment of the present invention. The communication device 1600 includes a processor 1601 and a communication interface 1602. Optionally, the memory 1603 is also included. The processor 1601 may implement the functions of the processing unit in FIG. 15 described above, and the communication interface 1602 may implement the functions of the transceiver unit 1502 in FIG. 15 described above. That is to say, the processor 1601 in this application can execute the above-mentioned solution executed by the processing unit 1501 in FIG. 15, and the communication interface 1602 or the communication can execute the above-mentioned solution executed by the above-mentioned transceiver unit 1502. Repeat.

Exemplarily, the communication device provided in the embodiments of the present application may be a terminal device with a corresponding function, a vehicle with a corresponding communication function, or a vehicle-mounted communication device or a communication chip with a corresponding communication function. The device may also be a chip for implementing a corresponding communication function, and the chip may be applied to a terminal device or a vehicle or vehicle-mounted communication device having a corresponding communication function.

In the above embodiments, it can be implemented in whole or in part by software, hardware, or a combination thereof, and when implemented using a software program, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Instructions can be stored in a computer storage medium, or transmitted from one computer storage medium to another computer storage medium, for example, the instructions can be from a website site, computer, server or data center via wire (such as coaxial cable, optical fiber, twisted pair Wire) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center. The computer storage medium may be any medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes one or more media integration. The media may be magnetic media (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical media (eg, optical disk), or semiconductor media (eg, ROM, EPROM, EEPROM, solid state disk (SSD)) )Wait.

The embodiments of the present application are described with reference to flowcharts and/or block diagrams of the method, device (system), and computer program product according to the embodiments of the present application. It should be understood that each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by instructions. These instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device are generated for implementation A device of a function specified in a block or blocks in a flowchart or a flow or multiple flows and/or block diagrams.

Claims

A communication method, characterized in that it includes:

The first communication device determines the first wireless access technology for sending the first data packet;

The first communication device determines the first quality of service QoS parameter corresponding to the first data packet according to the first wireless access technology;

According to the first QoS parameter, the first communication device sends the first data packet to the second communication device through the first wireless direct connection communication interface to which the first wireless access technology is applied;

The first communication device has a capability of data transmission through a first wireless direct communication interface applying the first wireless access technology, and has a second wireless direct communication interface applying a second wireless access technology For data transmission capabilities, the first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the first communication device and other communication devices.
The method of claim 1, wherein the first communication device determining the first wireless access technology for sending the first data packet includes:

The first layer of the first communication device receives indication information from the second layer of the first communication device, the indication information is used to indicate the first wireless access technology corresponding to the first service, the first data packet Belongs to the first business;

The first layer of the first communication device determines the first wireless access technology for sending the first data packet according to the instruction information.
The method according to claim 2, wherein the indication information includes the first wireless access technology and/or the first service, the first service and the first wireless access technology There is a mapping relationship.
The method according to any one of claims 1 to 3, wherein the first communication device determines the first QoS parameter corresponding to the first data packet according to the first wireless access technology, including:

If the first wireless access technology is a long-term evolution LTE technology, the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is single-packet priority PPPP and/or single-packet Reliability requirements PPPR;

If the first wireless access technology is a new air interface NR technology, the first layer of the first communication device determines that the first QoS parameter corresponding to the first data packet is a quality of service flow identifier QFI and/or 5G QoS Indicator 5QI.
The method according to any one of claims 1 to 4, wherein the indication information further includes a communication type;

The first communication device determines the first QoS parameter corresponding to the first data packet according to the first wireless access technology, including:

The first layer of the first communication device determines the communication type corresponding to the first service to which the first data packet belongs, and the communication type includes broadcast, multicast, or unicast;

The first layer of the first communication device determines the first QoS parameter according to the first wireless access technology and the communication type.
The method of claim 5, wherein the first layer of the first communication device determines the first QoS parameter according to the first wireless access technology and the communication type, including:

If the first wireless access technology is the NR and the communication type is unicast or multicast, the first layer of the first communication device determines that the first QoS parameter is the QFI; or ,

If the first radio access technology is the NR and the communication type is broadcast, the first layer of the first communication device determines that the first QoS parameter is the 5QI.
The method of claim 1, wherein the first communication device determining the first wireless access technology for sending the first data packet includes:

The first layer of the first communication device receives auxiliary information from the second layer of the first communication device, the auxiliary information includes at least one of the following: channels corresponding to wireless direct communication interfaces of different wireless access technologies, respectively Busy rate, priorities corresponding to wireless direct connection communication interfaces of different wireless access technologies, wireless direct connection communication interface covering wireless access technologies supported by the current cell of the first communication device; wherein, the first wireless The access technology is any one of the wireless access technologies;

The first layer of the first communication device determines the first wireless access technology for sending the first data packet according to the auxiliary information.
A communication method, characterized in that it includes:

The first communication device determines a second quality of service QoS parameter corresponding to the first data packet;

The first communication device obtains the mapping relationship between the first QoS parameter and the second QoS parameter;

The first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship, and the first QoS parameter corresponds to the first wireless access technology;

The first communication device sends the first data packet to the second communication device according to the first QoS parameter through the first wireless direct connection port to which the first wireless access technology is applied.
The method according to claim 8, wherein the first communication device determines the first QoS parameter corresponding to the first data packet according to the second QoS parameter and the mapping relationship, including:

The second layer of the first communication device receives the second QoS parameter corresponding to the first data packet from the first layer of the first communication device;

The second layer of the first communication device determines a first wireless access technology for sending the first data packet, and the first wireless access technology corresponds to the first QoS parameter;

The second layer of the first communication device determines the first QoS parameter according to the second QoS parameter, the mapping relationship, and the first wireless access technology.
The method of claim 9, wherein the second layer of the first communication device determining the first wireless access technology for sending the first data packet includes:

The second layer of the first communication device obtains the indication information, where the indication information is used to indicate the first wireless access technology corresponding to the first service, and the first data packet belongs to the first service;

The second layer of the first communication device determines the first wireless access technology for sending the first data packet according to the instruction information.
The method of claim 10, wherein the indication information includes the first wireless access technology and/or the first service, the first service and the first wireless access technology There is a mapping relationship.
A communication method, characterized in that it includes:

The first communication device determines the quality of service QoS parameters corresponding to the first data packet respectively sent by the wireless direct communication interface applying different wireless access technologies;

The first communication device determines a first QoS parameter according to different QoS parameters corresponding to the first data packet, and the first QoS parameter corresponds to the first wireless access technology;

According to the first QoS parameter, the first communication device sends the first data packet to the second communication device through the first wireless direct connection communication interface to which the first wireless access technology is applied.
The method according to claim 12, wherein the first communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet, including:

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device;

The second layer of the first communication device determines the QoS parameters that satisfy the preset condition among the different QoS parameters corresponding to the first data packet as the first QoS parameters.
The method according to claim 12, wherein the first communication device determines the first QoS parameter according to different QoS parameters corresponding to the first data packet, including:

The second layer of the first communication device receives different QoS parameters corresponding to the first data packet from the first layer of the first communication device;

The second layer of the first communication device determines the wireless access technology corresponding to the first service as the first wireless access technology, and the first data packet belongs to the first service;

The second layer of the first communication device determines the QoS parameter corresponding to the first wireless access technology from different QoS parameters corresponding to the first data packet, which is the first QoS parameter.
The method according to claim 14, wherein the second layer of the first communication device determines the radio access technology corresponding to the first service, which is the first radio access technology, including:

The second layer of the first communication device obtains indication information, where the indication information is used to indicate the first wireless access technology corresponding to the first service;

The second layer of the communication device determines that the first service corresponds to the first wireless access technology according to the instruction information.
The method according to claim 15, wherein the indication information includes the first wireless access technology and/or the first service, the first service and the first wireless access technology There is a mapping relationship.
The method according to any one of claims 12 to 16, wherein the different radio access technologies include a new air interface NR technology and a long-term evolution LTE technology;

The first communication device determining the quality of service QoS parameters respectively corresponding to the first data packet sent through the wireless direct communication interface applying different wireless access technologies includes:

The first layer of the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying the NR is the quality of service flow identifier QFI and/or 5G QoS indicator 5QI;

The first layer of the first communication device determines that the QoS parameter corresponding to the first data packet sent through the wireless direct communication interface applying the LTE is a service priority PPPP and/or a service reliability requirement PPPR.
The method according to any one of claims 1 to 17, wherein the first layer is a vehicle to all V2X layers, and the second layer is an access layer AS.
A communication device, characterized in that it includes:

A processing unit, configured to determine a first wireless access technology for sending a first data packet, and according to the first wireless access technology, determine a first quality of service QoS parameter corresponding to the first data packet;

A transceiver unit, configured to send the first data packet to a second communication device through the first wireless direct connection communication interface applying the first wireless access technology according to the first QoS parameter;

The communication device has a data transmission capability through a first wireless direct communication interface applying the first wireless access technology, and has a data transmission through a second wireless direct communication interface applying a second wireless access technology Capability, the first wireless direct communication interface and the second wireless direct communication interface are communication interfaces between the first communication device and other communication devices.
The communication device according to claim 19, wherein the transceiver unit includes a first transceiver unit and a second transceiver unit; the processing unit includes a first processing unit;

The first transceiver unit is used to:

Receiving indication information from the second transceiver unit, where the indication information is used to indicate a first wireless access technology corresponding to a first service, and the first data packet belongs to the first service;

The first processing unit is used to:

According to the instruction information, determine the first wireless access technology for sending the first data packet.
The communication device according to claim 20, wherein the indication information includes the first wireless access technology and/or the first service, and the first service and the first wireless access technology There is a mapping relationship between.
The communication device according to any one of claims 19 to 21, wherein the first processing unit is specifically configured to:

If the first wireless access technology is a long-term evolution LTE technology, it is determined that the first QoS parameter corresponding to the first data packet is a single-packet priority PPPP and/or a single-packet reliability requirement PPPR;

If the first wireless access technology is a new air interface NR technology, it is determined that the first QoS parameter corresponding to the first data packet is a quality of service flow identifier QFI and/or a 5G QoS indicator 5QI.
The communication device according to any one of claims 19 to 22, wherein the instruction information further includes a communication type;

The first processing unit is specifically used for:

Determine a communication type corresponding to the first service to which the first data packet belongs, the communication type includes broadcast, multicast, or unicast; according to the first wireless access technology and the communication type, determine the first A QoS parameter.
The communication device according to claim 23, wherein the first processing unit is specifically configured to:

If the first wireless access technology is the NR and the communication type is unicast or multicast, it is determined that the first QoS parameter is the QFI; or,

If the first radio access technology is the NR and the communication type is broadcast, it is determined that the first QoS parameter is the 5QI.
The communication device according to claim 19, wherein the first transceiver unit is specifically configured to:

Receiving auxiliary information from the second transceiver unit, the auxiliary information including at least one of the following: a channel busy rate corresponding to a wireless direct connection communication interface of different wireless access technologies, and a wireless direct connection communication interface of different wireless access technologies, respectively Respectively corresponding priorities, wireless direct connection communication interfaces covering wireless access technologies supported by the current cell of the first communication device; wherein the first wireless access technology is any of the wireless access technologies Species

The first processing unit is specifically used for:

According to the auxiliary information, determine the first wireless access technology for sending the first data packet.
A communication device, characterized in that it includes:

The processing unit is configured to determine a second quality of service QoS parameter corresponding to the first data packet, and obtain a mapping relationship between the first QoS parameter and the second QoS parameter; according to the second QoS parameter and the mapping relationship, determine the The first QoS parameter corresponding to the first data packet, and the first QoS parameter corresponds to the first wireless access technology;

The transceiver unit is configured to send the first data packet to the second communication device through the first wireless direct connection port applying the first wireless access technology according to the first QoS parameter.
The communication device according to claim 26, wherein the transceiver unit includes a first transceiver unit and a second transceiver unit; the processing unit includes a second processing unit;

The second transceiver unit is used to:

Receiving a second QoS parameter corresponding to the first data packet from the first transceiver unit;

The second processing unit is used to:

Determine a first wireless access technology for sending the first data packet, the first wireless access technology corresponding to the first QoS parameter; according to the second QoS parameter, the mapping relationship, and the first A wireless access technology to determine the first QoS parameter.
A communication device, characterized in that it includes:

The processing unit is configured to determine the quality of service QoS parameters corresponding to the first data packet sent through the wireless direct communication interface applying different wireless access technologies; according to the different QoS parameters corresponding to the first data packet, determine the first QoS parameter , The first QoS parameter corresponds to the first wireless access technology;

The transceiver unit is configured to send the first data packet to the second communication device through the first wireless direct connection communication interface to which the first wireless access technology is applied according to the first QoS parameter.
The communication device according to claim 28, wherein the transceiver unit includes a first transceiver unit and a second transceiver unit; the processing unit includes a first processing unit and a second processing unit;

The second transceiver unit is used to:

Receiving different QoS parameters corresponding to the first data packet from the first transceiver unit;

The second processing unit is used to:

A QoS parameter satisfying a preset condition among different QoS parameters corresponding to the first data packet is determined as the first QoS parameter.
The communication device according to claim 28, wherein the second transceiver unit is configured to:

Receiving different QoS parameters corresponding to the first data packet from the first transceiver unit;

The second processing unit is used to:

Determine that the wireless access technology corresponding to the first service is the first wireless access technology, and the first data packet belongs to the first service; from different QoS parameters corresponding to the first data packet, determine the The QoS parameter corresponding to the first radio access technology is the first QoS parameter.
A communication device, characterized in that it includes a processor and a transceiver for receiving signals from communication devices other than the communication device and transmitting to or from the processor A signal is sent to a communication device other than the communication device, and the processor is used to implement any one of claims 1 to 7, or 8 to 11, or 12 to 18 through logic circuits or executing code instructions Methods.
A computer-readable storage medium, characterized in that a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed by a communication device, the computer program or instruction is implemented as claimed in claims 1 to 7, or 8. The method according to any one of to 11, or 12 to 18.
A computer program product, characterized in that the computer program product includes a computer program or instruction, and when the computer program or instruction is executed by a communication device, the computer program product is implemented as claimed in claims 1 to 7, or 8 to 11, or 12 to The method according to any one of 18.