WO2021062855A1

WO2021062855A1 - Communication method and device

Info

Publication number: WO2021062855A1
Application number: PCT/CN2019/109784
Authority: WO
Inventors: 黎超; 刘哲; 王俊伟
Original assignee: 华为技术有限公司
Priority date: 2019-10-01
Filing date: 2019-10-01
Publication date: 2021-04-08
Also published as: CN114424655A

Abstract

A communication method and device. The method can be applied to the Internet of vehicles, such as V2X, LTE-V and V2V, or can be used in the fields of intelligent driving, intelligent connected vehicles, etc. The method comprises: determining, according to the type of data, the priority of first data to be sent, the first data being a first type of data or a second type of data; and sending first information, the first information being used to indicate the priority of the first data. By means of the method, a second terminal device can determine, from candidate resources, on the basis of the type and/or priority of the first data, candidate resources for sending second data, so as to solve the problem of resource conflicts as far as possible, and ensure the reliability of service transmission.

Description

Communication method and device

Technical field

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

Background technique

As a key technology of the future intelligent transportation system (ITS), the Internet of Vehicles has received more and more attention recently. Among them, the vehicle-to-everything (V2X) system is a key technology in the Internet of Vehicles. V2X includes direct communication between vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), and Vehicle-to-network (V2N) communication interaction. Except for V2N vehicles and network communication which use uplink and downlink, the other V2V/V2I/V2P data communication uses sidelink (SL) for communication.

In V2X technology, the terminal device is supported to independently select the transmission mode of resources when there is no network. The transmission mode of autonomously selecting resources refers to the resources allocated by the terminal equipment to the terminal equipment by the network equipment, such as sending resources, which are used for transmitting data. In the NR system, the network equipment controls the communication between the vehicle and the vehicle in mode 2. The control method of mode 2 is similar to the mode 4 in the LTE system, that is, in the connected state or the idle state, the network device passes through Dedicated signaling or broadcast information provides a resource pool for connected or idle terminal devices, and the terminal device selects resources from the sending resource pool to send to other terminal devices.

At present, the terminal device can select resources from the sending resource pool based on the priority of the data to be sent, but there is no corresponding solution for the situation that the data to be sent has no priority.

Summary of the invention

The embodiments of the present application provide a communication method and device, which are used to provide a method for selecting terminal equipment resources to solve the problem of terminal device transmission resource conflicts.

In the first aspect, a communication method is provided. The execution subject of the method may be a terminal device or a chip applied to the terminal device. The following describes an example where the execution subject is the first terminal device. The method includes: determining the priority of the first data to be sent according to the type of the data, the first data being the first type of data or the second type of data, and sending the first information, the first information is used to indicate The priority of the first data.

In the second aspect, a communication method is provided. The execution subject of the method may be a terminal device or a chip applied to the terminal device. The following describes an example where the execution subject is the second terminal device. The method includes: receiving first information and first data from a first terminal device, where the first information is used to indicate a type of the first data, and the first data is a first type of data or a second type According to the type of the first data, a candidate resource for sending the second data is determined.

In the above-mentioned embodiments of the first aspect and the second aspect, the first terminal device as the transmitting end may determine the priority of the first data according to the type of data, and notify the second terminal as the receiving end of the priority of the first data Therefore, the second terminal device can determine the candidate resource for transmitting the second data from the candidate resources based on the type or priority of the first data. With this solution, even if there is, for example, the second type of data in the wireless link, such as non-application layer data, the priority of the second type of data can be defined, so as to ensure that even if the second type of data exists, resource conflicts are avoided as much as possible. Save the reliability of service transmission.

In the foregoing possible designs of the first and second aspects, the first type of data includes any one or more combinations of the following data:

Data of the application layer, data of the service to be sent, or data of the V2X layer of the vehicle and any device.

In the above-mentioned possible designs of the first aspect and the second aspect, the second type of data includes any one or a combination of the following data:

Feedback information, where the feedback information includes information used to feed back channel state information CSI and/or signal quality information;

Control information, where the control information includes high-level control information and/or physical layer control information, and the high-level control information refers to information carried on a data channel and used to control, establish, release, maintain, or manage a wireless link, The physical layer control information is indication information of physical layer parameters used for data reception, transmission, and demodulation;

The reference signal includes a measurement report used for signal measurement.

This solution lists several types of data of the first type and data of the second type, clearly clarifying the first type of data and the second type of data.

In a possible design of the foregoing first aspect, the method further includes acquiring first configuration information, where the first configuration information is used to configure the priority of the second type of data.

In this solution, the priority of the second type of data is defined, so that the first terminal device can determine the priority of the first data based on the priority of the second type of data.

In a possible design of the above-mentioned first aspect, the method further includes: acquiring second configuration information, where the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, wherein the transmission The parameters include one or a combination of the following parameters:

Channel occupancy ratio, the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.

This solution provides a way to indicate the priority of the second type of data, that is, indirectly indicating the priority of the second type of data through transmission parameters. There are many transmission parameters, and the indication method is more flexible.

In the above-mentioned embodiments of the first aspect and the second aspect, the first information can be implemented in multiple ways:

Exemplarily, the first information further indicates the type of the first data. With this solution, the first information can indicate the priority of the first data and the type of the first data at the same time, which improves the utilization of the first information; at the same time, there is no need to carry other information of the type of the first data, which reduces the complexity. degree.

Exemplarily, the first information indicates the type of the first data and the priority of the first data through first indication information, and the first indication information is carried in the first field and the first field of the first information. Second field, the first field is used to indicate the type of the first data, the second field is used to indicate the priority of the second data; or, the first indication information is carried in the first data The first field of a message, some of the bits in the first field are used to indicate the type of the first data, and the bits in the first field other than the partial bits are used to indicate the first data Or, the first indication information is carried in the first field of the first message, and the value of the first field includes the first value range and the second value range, when the first field The value of is in the first value range, and the first field is used to indicate the priority of the first type of data. When the value of the first field is in the second value range, the first field is A field is used to indicate the priority of the second type of data; or, the first information indicates the priority of the first data, and the second information used for unicast or multicast indicates the first message type. With this solution, the first information can have multiple explicit indication modes or implicit indication modes to indicate the priority of the first data and/or the type of the first data, which is relatively flexible.

Exemplarily, the first indication information is used to indicate the type of the first data, and the first indication information is the CRC mask and/or demodulation signal of the first control channel used by the first terminal device. Sequence parameter, the first control channel is a channel used to indicate the first information. This solution provides multiple implementation solutions for the first indication information, that is, multiple solutions for indicating the type of the first data.

Exemplarily, the reservation state or value of the field used to indicate the priority of the first data in the first information is used to indicate that the priority indicated by the field is valid or invalid.

Exemplarily, the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.

In the above two solutions, the first information can not only indicate the priority of the first data, but also can be used for other purposes, such as indicating resource reservation information and/or resource preemption information of the first terminal device, and the utilization rate is relatively high.

In a possible design of the second aspect, determining the resource for sending the second data according to the priority of the first data includes determining the first resource from a set of candidate resources, and the signal quality threshold of the first resource is greater than the first resource. A threshold, the first threshold is determined according to the type of the first data, the first resource is excluded from the candidate resource set, the remaining resources are obtained, and the remaining resources are determined to be used for sending State the resource of the second data. With this solution, the first resource whose signal quality threshold is greater than the first threshold can be excluded from the set of candidate resources. The first threshold can be determined according to the type of the first data, that is, from the candidate resources according to the type of the first data. Determine the resource used to send the second data.

In a possible design of the second aspect, the method further includes determining that the proportion of the second resource in the candidate resource set is less than a first threshold, and increasing the first threshold, wherein the second resource is The first terminal device sends the candidate resource of the first data. With this solution, the second terminal device can increase the candidate resources for sending the second data according to the candidate resources for sending the first data by the first terminal device, so as to ensure the reliability of the second data transmission as much as possible.

In a possible design of the second aspect, determining the resource for sending the second data according to the priority of the first data includes the second terminal device according to the type of the first data and the first data The priority of and the type of the second data determine the resource for sending the second data. This solution provides that when the first type of data and the second type of data coexist, the second terminal device determines the resource for sending the data, so as to avoid resource conflicts and ensure the reliability of data transmission.

In a possible design of the second aspect, the first data and the second data are both the second type of data, and the priority of the first data is higher than the priority of the second data, It is determined that the candidate resource for sending the second data does not include the second resource; or, the priority of the first data is higher than or equal to the priority of the second data, and it is determined to be used for sending the first data. The candidate resource of the second data includes the second resource.

In a possible design of the second aspect, the first data is the first type of data, the second data is the second type of data, or the first data is the second type. Type of data, the second data is the first type of data:

It is determined that the priority of the first data is lower than the priority of the second data, and it is determined that the candidate resource for sending the second data does not include the second resource; or, it is determined that the priority of the first data is The priority is higher than or equal to the priority of the second data, and it is determined that the candidate resource for sending the second data includes the second resource; or, the priority of the first data is determined according to a preset rule Is lower than the priority of the second data, and it is determined that the candidate resource for sending the second data does not include the second resource; or, it is determined that the priority of the first data is higher than or equal to the first data. Second, the priority of the data, and it is determined that the candidate resource used to send the second data includes the second resource. The above solution provides a rule for determining candidate resources of the second data when the relative magnitudes of the priority of the first data and the priority of the second data are different.

In a possible design of the second aspect, the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than or equal to the second threshold, so The second terminal device determines that the candidate resource used to send the second data includes the second resource. With this scheme, the candidate resources for sending data are determined based on the priority of the data and the signal quality threshold, and resource conflicts can be avoided as much as possible.

In a possible design of the second aspect, the method further includes the second terminal device determining, according to the detected signal quality of the first data, and a signal quality threshold corresponding to the type of the first data for The resource for sending the second message.

In a possible design of the second aspect, the second data and the first data are both data of the second type, and the signal quality threshold corresponding to the type of the first data is a third threshold; The second data is data of the second type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is a fourth signal quality threshold; The second data is the first type of data, the first data is the second type of data, and the signal quality threshold corresponding to the type of the first data is a fifth signal quality threshold; the second data Is the first type of data, the first data is the first type of data, and the signal quality threshold corresponding to the type of the first data is a sixth signal quality threshold. The third signal quality threshold, the fourth signal quality threshold, the fifth signal quality, and the sixth signal quality may all be different. Optionally, one or more of the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold may be configured by the base station or may be pre-configured, which is not limited in the present invention. As above, different signal quality thresholds are set for different types of data, so as to more accurately determine the candidate resources of the data to be sent.

In a third aspect, a communication device is provided. For beneficial effects, reference may be made to the description in the first aspect, which will not be repeated here. The communication device has the function of realizing the behavior in the method embodiment of the first aspect. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. In a possible design, the communication device includes: a processing unit configured to determine the priority of the first data to be sent according to the type of the data, the first data being the first type of data or the second type of data The transceiver unit is used to send first information, and the first information is used to indicate the priority of the first data. These modules can perform the corresponding functions in the above-mentioned method example of the first aspect. For details, please refer to the detailed description in the method example, which will not be repeated here.

In the fourth aspect, a communication device is provided, and the beneficial effects can be referred to the description of the second aspect and will not be repeated here. The communication device has the function of realizing the behavior in the method example of the second aspect described above. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. In a possible design, the communication device includes: a transceiving unit, configured to receive first information and first data from a first terminal device, the first information is used to indicate the type of the first data, and The first data is a first type of data or a second type of data; the processing unit is configured to determine a candidate resource for sending the second data according to the type of the first data. These modules can perform the corresponding functions in the method example of the second aspect. For details, please refer to the detailed description in the method example, which will not be repeated here.

In a fifth aspect, a communication device is provided. The communication device may be the first terminal device in the foregoing method embodiment, or a chip set in the first terminal device. The communication device includes a communication interface, a processor, and optionally, a memory. Wherein, the memory is used to store computer programs or instructions, and the processor is coupled with the memory and a communication interface. When the processor executes the computer programs or instructions, the communication device is caused to execute the method executed by the first terminal device in the foregoing method embodiment. method.

In a sixth aspect, a communication device is provided. The communication device may be the second terminal device in the foregoing method embodiment, or a chip set in the second terminal device. The communication device includes a communication interface, a processor, and optionally, a memory. Wherein, the memory is used to store computer programs or instructions, and the processor is coupled with the memory and a communication interface. When the processor executes the computer programs or instructions, the communication device is caused to execute the operations executed by the second terminal device in the foregoing method embodiments. method.

In a seventh aspect, there is provided a computer program product, the computer program product comprising: computer program code, when the computer program code is running, the above aspects are executed by the first terminal device or the second terminal device The method is executed.

In an eighth aspect, the present application provides a chip system, which includes a processor, configured to implement the functions of the first terminal device or the second terminal device in the methods of the foregoing aspects. In a possible design, the chip system further includes a memory for storing program instructions and/or data. The chip system can be composed of chips, and can also include chips and other discrete devices.

In a ninth aspect, the present application provides a computer-readable storage medium that stores a computer program. When the computer program is executed, the first terminal device or the second terminal device in the above aspects is implemented Method of execution.

Description of the drawings

Figure 1 is a schematic diagram of V2X provided by an embodiment of the application;

FIG. 2 is a schematic diagram of a V2X network architecture provided by an embodiment of this application;

FIG. 3 is a schematic diagram of a resource for sending data provided by an embodiment of this application;

FIG. 4 is a schematic diagram of a resource for sending data provided by an embodiment of the application;

FIG. 5 is a schematic diagram of a V2X network architecture provided by an embodiment of this application;

FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of this application;

FIG. 8 is a schematic diagram of another structure of a communication device provided by an embodiment of this application;

FIG. 9 is a schematic diagram of still another structure of a communication device provided by an embodiment of this application;

FIG. 10 is a schematic diagram of still another structure of another communication device provided by an embodiment of this application.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Before introducing this application, first briefly explain some terms in the embodiments of this application, so as to facilitate the understanding of those skilled in the art.

1) A terminal device includes a device that provides voice and/or data connectivity to a user, for example, it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal device may include user equipment (UE), wireless terminal devices, mobile terminal devices, device-to-device communication (device-to-device, D2D) terminal devices, V2X terminal devices, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal devices, Internet of things (IoT) terminal devices, subscriber units, subscriber stations, mobile stations , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), aircraft (such as UAV, hot air balloon, civil aviation passenger plane, etc.) or user device, etc. For example, it may include a mobile phone (or called a "cellular" phone), a computer with a mobile terminal device, a portable, pocket-sized, handheld, and a mobile device with a built-in computer, and so on. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants, PDA), and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The various terminal devices described above, if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal devices. The vehicle-mounted terminal devices are, for example, also called on-board units (OBU). ). The terminal device of the present application may also be an in-vehicle module, an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit that is built into a vehicle as one or more components or units. On-board components, on-board chips, or on-board units can implement the method of the present application.

2) Network equipment, including, for example, access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal devices through one or more cells over the air interface in the access network Or, for example, a network device in a V2X technology is a roadside unit (RSU). The base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications. The network equipment can also coordinate the attribute management of the air interface. For example, the network equipment may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system, Or it may include the next generation node B (gNB) in the 5G NR system, or it may include the centralized unit (CU) in the cloud radio access network (Cloud RAN) system. And distributed unit (DU), the embodiment of the present application is not limited.

3) V2X, in the version (Rel)-14/15/16, V2X as a major application of device-to-device (device-to-device, D2D) technology was successfully established. V2X will optimize the specific application requirements of V2X on the basis of the existing D2D technology. It is necessary to further reduce the access delay of V2X devices and solve the problem of resource conflicts.

V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and There are several application requirements such as vehicle-to-network (V2N) communication and interaction. As shown in Figure 1. V2V refers to the communication between vehicles; V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers); V2I refers to the communication between vehicles and network equipment, such as RSU, and There is another type of V2N that can be included in V2I. V2N refers to the communication between the vehicle and the base station/network.

Among them, RSU includes two types: terminal type RSU, because it is located on the roadside, this terminal type RSU is in a non-mobile state, and there is no need to consider mobility; base station type RSU can provide timing synchronization for vehicles communicating with it And resource scheduling.

4) The terms "system" and "network" in the embodiments of this application can be used interchangeably. In the embodiments of the present application, “a plurality of” may also be understood as “at least two”. "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one refers to including one, two or more, and does not limit which ones are included. For example, including at least one of A, B, and C, then the included can be A, B, C, A and B, A and C, B and C, or A and B and C. "And/or" describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. In addition, the character "/", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

Unless otherwise stated, ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects. For example, the first terminal device and the second terminal device are only used to distinguish different terminal devices, but not to limit the functions, priority, or importance of the two terminal devices.

Some concepts related to the embodiments of the present application are introduced as above, and the technical features of the embodiments of the present application are introduced below.

V2X is the key technology of the future intelligent transportation system. It enables communication between vehicles, vehicles and base stations, and base stations and base stations. In this way, a series of traffic information such as real-time road conditions, road information, and pedestrian information can be obtained, thereby improving driving safety, reducing congestion, improving traffic efficiency, and providing in-vehicle entertainment information.

Refer to Figure 2, which is a schematic diagram of a V2X network architecture. Figure 2 includes 4 terminal devices, which are UE1, UE2, UE3, and UE4, respectively. Among them, UE1 and UE2 are located in the same lane, and UE3 and UE4 are located in the same lane. Any one of the four terminal devices can communicate with the other three terminal devices through a V2X link, which can also be referred to as a side link. The terminal device in FIG. 2 is an example of a vehicle-mounted terminal device, which is not limited to this in practical applications. Of course, the number of terminal devices in FIG. 2 is just an example.

In the NR system, the network equipment controls the communication between the vehicle and the vehicle in mode2, that is, in the connected or idle state, the network equipment provides the terminal equipment in the connected or idle state through dedicated signaling or broadcast information. Resource pool, the terminal device selects resources from the sending resource pool to send to other terminal devices.

At present, 3GPP agrees to use control information, such as sidelink control information (SCI) to indicate priority for the terminal device to select resources from the sending resource pool based on mode2 to communicate with other terminal devices. Or under the condition of no network coverage, the terminal device selects resources from a pre-configured resource or resource pool to communicate with other terminal devices.

In addition, please refer to FIG. 3, which is a schematic diagram of a resource for sending data. FIG. 3 takes the sending physical signal as a synchronization signal as an example. Fig. 3 takes as an example two V2X terminal devices, which are UE1 and UE2 respectively. Among them, UE1 is a terminal device supporting the LTE standard, and UE2 is a terminal device supporting the NR standard. As shown in Figure 3, the resources of UE1 and UE2 for sending data partially overlap. When UE1 and UE2 communicate through the V2X link, UE1 and UE2 can actively select resources from the sending resource pool based on the priority of the synchronization signal to be sent. Send or receive synchronization signals. At present, in order to resolve the transmission and reception conflicts, the priority of the latest data (physical sidelink shared channel (PSSCH)) used by the synchronization signal is determined as the priority of the synchronization signal, and the synchronization signal is selected for transmission based on this priority. Resources to resolve the sending and receiving conflicts. If there is no data near the synchronization signal, the configured priority is used as the priority of the synchronization signal, as shown in Figure 4. Figures 3 and 4 are only for determining the priority of application layer data. For non-application layer data, how to determine the resource for transmitting non-application layer data, there is currently no corresponding solution.

In view of this, the technical solutions of the embodiments of the present application are provided. In the embodiment of the present application, for the existence of two types of data, the first terminal device may determine the priority of the first data according to the type of the first data, and notify the second terminal device of the priority of the first data, so that the first terminal device The two terminal devices may determine a candidate resource for sending the second data from the candidate resources based on the type and/or priority of the first data, so as to try to solve the problem of resource conflict.

The technical solutions provided by the embodiments of the present application may be applied to 5G systems, or applied to future communication systems or other similar communication systems. In addition, the technical solutions provided by the embodiments of the present application can be applied to a cellular link, and can also be applied to a link between devices, such as a device to device (D2D) link. When used in a cellular link, the second terminal device may be a network device, which is not limited in the present invention. The D2D link can also be called a sidelink, and the side link can also be called a side link or a secondary link. In the embodiments of the present application, the aforementioned terms all refer to links established between devices of the same type, and have the same meaning. The so-called devices of the same type can be the link between the terminal device and the terminal device, the link between the base station and the base station, and the link between the relay node and the relay node. This application The embodiment does not limit this. For the link between the terminal device and the terminal device, there are D2D links defined by 3GPP version (Rel)-12/13, and there are also car-to-car, car-to-mobile, or car-to-any entity defined by 3GPP for the Internet of Vehicles. V2X link, including Rel-14/15. It also includes the V2X link based on the NR system of Rel-16 and subsequent versions that are currently being studied by 3GPP.

The following describes the network architecture applied by the embodiments of the present application. Please refer to FIG. 5, which is a network architecture applied in the embodiment of this application.

Figure 5 includes 3 terminal devices and 4 network devices. Among them, the 3 terminal devices are UE1, UE2, and UE3, and the 4 network devices are two base stations, one RUS and one Global Navigation Satellite System (Global Navigation Satellite System). System, GNSS). Among them, Figure 5 takes these three terminal devices as V2X terminal devices as an example. The network equipment corresponds to different equipment in different systems. For example, in the 4th generation (4G) system, it can correspond to the eNB, and in the 5G system, it corresponds to the gNB in 5G. V2X terminal equipment can also be called vehicle-mounted equipment. Vehicle-mounted equipment can communicate with each other to realize information exchange and information sharing. For example, vehicle linkage status information including vehicle location and driving speed can be used to determine road traffic conditions. RSU can communicate with various vehicle-mounted equipment and/or base station equipment, and can be used to detect road surface conditions and guide vehicles to select the best driving path. The base station communicates with each vehicle-mounted device and/or RSU, and GNSS can provide positioning and timing information for other network elements. In addition, the in-vehicle devices in the Internet of Vehicles can also communicate with people, and specific users can communicate with the vehicle through wireless communication means such as Wi-Fi, Bluetooth, and cellular, so that the user can monitor and control the vehicle through the corresponding mobile terminal device. These 3 UEs and RUS can all be covered by two base stations, and each base station can communicate with these 3 UEs and RUS. The base station in Figure 5 is optional. If there is a base station, it is a scenario with network coverage; if there is no base station equipment, it is a scenario without network coverage. It should be noted that the number of terminal devices in FIG. 5 is just an example. In practical applications, a network device can provide services for multiple terminal devices. The terminal device in FIG. 5 may be a V2X terminal device, for example, a vehicle-mounted terminal device or a vehicle, but the terminal device in the embodiment of the present application is not limited thereto.

Each of the above-mentioned devices can communicate with each other through the side link and the uplink and the downlink, and the spectrum of the cellular link can be used for communication, and the intelligent traffic spectrum around 5.9 GHz can also be used. The technology for each device to communicate with each other can be enhanced based on the communication network protocol (such as the LTE protocol), and can be enhanced based on the D2D technology.

The following describes the technical solutions provided by the embodiments of the present application in conjunction with the drawings.

An embodiment of the present application provides a communication method. Please refer to FIG. 6, which is a flowchart of a communication method provided by an embodiment of the present application. In the following introduction process, the application of this method to the network architecture shown in FIG. 2 or 5 is taken as an example. In addition, the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a terminal device or a network device, or can support a terminal device or a network device The communication device that implements the functions required by the method, or the first communication device may be a communication chip (for example, a communication baseband chip system) that can support the terminal device or network device to implement the functions required by the method. The same is true for the second communication device. The second communication device may be a terminal device or a network device or a communication device capable of supporting the terminal device or network device to implement the functions required by the method, or the second communication device may be capable of supporting a terminal device or A communication chip (such as a baseband communication chip system) for the network device to implement the functions required by the method.

For the convenience of description, hereinafter, the first communication device and the second communication device are also referred to as the first terminal device and the second terminal device, that is, the first communication device is the first terminal device and the second communication device is the second terminal. Take the device as an example. For example, the first terminal device below may be the UE in FIG. 2 or FIG. 5, and the second terminal device may also be the UE in FIG. 2 or FIG. 5. For example, the method is applied to the network architecture shown in FIG. The terminal device may be any UE among UE1-UE4, and the second terminal device may be any UE among UE1-UE4 except the first terminal device. For another example, the method is applied to the network architecture shown in FIG. 5, the first terminal device may be any one of UE1-UE3, and the second terminal device may be any one of UE1-UE3 except the first terminal device. The UE may also be RSU1; or, the first terminal device may be RSU1, and the second terminal device may be any one of UE1 to UE3. The embodiments of the present application do not limit the implementation manners of the first terminal device and the second terminal device. It should be noted that the embodiment of the present application only takes the execution by the first terminal device and the second terminal device as an example, and is not limited to this scenario.

S61. The first terminal device determines the priority of the first data to be sent according to the type of data, where the first data is the first type of data or the second type of data;

S62. The first terminal device sends first information and first data, and the second terminal device receives the first information and first data, where the first information is used to indicate the priority of the first data.

It should be understood that, while sending the first information, the first terminal device may send the first data or delay sending the first data. Here, the simultaneous transmission can be considered that the time difference between the first terminal device sending the first information and the first data is less than the first duration, and the relative delayed transmission can be considered that the first terminal device sends the first information, but does not currently send the first data. Instead, the first data is sent after the second duration, and the second duration is greater than the first duration.

S63. The second terminal device determines a candidate resource for sending the second data according to the type of the first data.

In the embodiments of the present application, at least the existing data includes application layer data and non-application layer data. Among them, application layer data can also be considered as data from the application layer, or, the data is sent at the application layer or in the application layer. Layer reception. In contrast, non-application layer data can be considered to be that the data comes from the physical layer, or the data is sent or received at the physical layer. It should be understood that the application layer data here is relative to non-application layer data, and may include at least one or a combination of application layer data packets, data packets of services to be sent, and V2X layer data. The non-application layer data may include at least one or a combination of feedback information, control information, and reference signals. Wherein, the feedback information may at least include information used to feed back channel state information (CSI) and/or signal quality information, where the CSI information may at least include information used to feed back channel quality indication (CQI) One of information, rank indication (RI) information, precoding matrix indicator (PMI) information, and beam-related measurement information. The signal quality information may include at least measurement reference signal received power (RSRP) information, measurement reference signal received quality (RSRQ) information, and received signal strength indicator (RSSI) information.

The control information may include high-level control information and/or physical layer control information. The high-level control information refers to the information carried in the data channel and used to realize the control, establishment, release, maintenance or management of the wireless link. For example, the control information used for the connection establishment of the side link, the control information used for the connection release of the side link, and the control information used to manage the synchronization information of the side link, such as radio link management. , RLM) message. The physical layer control information is indication information of physical layer parameters used for data reception, transmission, and demodulation. The physical layer parameters can include indication information of time-frequency resources for receiving or sending data, indication information of modulation and coding (MCS), indication information of the number of retransmissions, indication information of transmission power, and hybrid automatic repeat request (hybrid automatic repeat request). automatic repeat request, HARQ) response information, etc. The indication information of these physical layer parameters can be carried on the physical control channel or the physical layer data channel. The reference signal includes a reference signal used for signal measurement, such as a signal used for measuring RSRP, a signal used for measuring RSRQ, and a signal used for RLM.

In some instances, application layer data and non-application layer data can be considered as two different types of data. For example, application layer data is the first type of data, and non-application layer data is the second type of data; or, application layer data is the second type of data. Layer data is the second type of data, and non-application layer data is the first type of data. In the following, the first type of data is application layer data, and the second type of data is non-application layer data as an example.

In addition to supporting the sending or receiving of the first type of data, the embodiments of this application can also support the sending or receiving of the second type of data. Therefore, each terminal device needs to determine how to send or receive the first type of data or the second type based on mode2. The data.

Currently, for the first type of data, the terminal device determines the resource for sending or receiving data based on the priority of the first type of data, but there is no corresponding solution for the second type of data. For this reason, in the embodiment of the present application, the corresponding priority may be defined for the second type of data, multiple priorities may be defined, and the priorities of different types of data definitions may be the same or different. Exemplarily, five priority levels can be defined for the first type of data. The five priority levels are priority 1, priority 2, priority 3, priority 4, and priority 5; for the second type of data You can also define five priority levels as priority 1, priority 2, priority 3, priority 4, and priority 5. Exemplarily, five priority levels can be defined for the first type of data. The five priority levels are priority 1, priority 2, priority 3, priority 4, and priority 5; for the second type of data It is also possible to define 5 priority levels as priority 6, priority 7, priority 8, priority 9, and priority 10.

The network device may configure respective priorities for different sub-types of the second type of data. As an example configuration solution, the network device may notify the first terminal of the priority of the second type of data through the first configuration information Device. The first configuration information may be used to configure the priority of the second type of data. If the first data is data of the second type, the first terminal device may determine the priority corresponding to the first data according to the first configuration information and the specific subtype of the first data to be sent. As an implementation manner of the first configuration information, the first configuration information may indicate a transmission parameter associated with the priority of the first type of data, and the transmission parameter indicates the priority of the first type of data. Similarly, the first configuration information may also indicate a transmission parameter associated with the priority of the second type of data, and the priority of the second type of data is indicated by the transmission parameter. In some instances, the information used to indicate the transmission parameters associated with the priority of the data may be referred to as second configuration information. Exemplarily, the transmission parameters of the first terminal device may include one or a combination of the following parameters: channel occupancy ratio, size of resource occupied by data, transmission power of data, number of retransmissions of data, reference signal used by data Pattern. For example, for the first data, the transmission parameters may be the channel occupancy ratio, the resource size occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data. At least one. Optionally, for different reference signal patterns, the positions and/or numbers of the corresponding reference signals in the time slot are different.

When the first terminal device needs to send the first data, it may determine the priority of the first data according to the type of the first data, and may notify the second terminal device of the priority of the first data. The first terminal device may inform the second terminal device of the priority of the first data through the first information. For example, the first terminal device sends first information to the second terminal device, where the first information is used to indicate the priority of the first data. The second terminal device may determine the candidate resource for transmitting the second data according to the priority of the first data. For example, the second terminal device determines whether the candidate resource for sending the second data preempts the resource of the first terminal device. It should be understood that the resource of the first terminal device may be considered as a resource reserved for the first terminal device. For example, the reserved resource may be a candidate resource used by the first terminal device to send the first data, or may also be The first terminal device transmits the resource being used by the first data.

In a possible implementation manner, the first information may also indicate the type of the first data, or the first information may indicate the priority of the first data through the type of the first data. In some embodiments, the first information indicates the type of the first data and/or the priority of the first data through the first indication information.

As an implementation manner of the first indication information, the first indication information may be carried in a field of the first information. For ease of description, in this embodiment of the present application, this field is referred to as the first field. The first field may be a newly defined field of the first information, or may be a field defined by the first information.

Exemplarily, taking the first information as sidelink control information (SCI) as an example, the first field can be a newly defined field, so that it will not affect the field structure defined by the SCI; it can also be an original field. This does not increase the size of the SCI. The first field can occupy multiple bits (bits), then some of the multiple bits can indicate the type of the first data, and the bits of the multiple bits other than the partial bits can be used for priority of the first data. level. Part of the bit can be 1 bit, when the value of the part of the bit is "0", it can indicate that the type of the first data is the first type; on the contrary, when the value of the part of the bit is "1", it can indicate the type of the first data It is the second type. In other embodiments, when the value of the partial bit is "1", it can indicate that the first data is of the second type, and when the value of the partial bit is "0", it can indicate that the first data is of the first type.

Exemplarily, taking the first information as the SCI as an example, the first field may be a defined field, for example, the first field may be a field used to indicate that the transmission mode of the SCI is unicast, multicast, or broadcast. In this way, there is no need to add a new field, and the utilization rate of the first field can be improved. In this way, the first field occupies multiple bits, and some of the multiple bits can indicate the type of the first data, for example, the first type or the second type, that is, the first type or the second type can be displayed. Type. Among the multiple bits, the bits other than the part of the bits can be used to indicate the information currently carried by the first field, such as priority. Alternatively, some of the multiple bits may indicate the priority of the first type of data, and the bits of the multiple bits other than the part of the bits may be used to indicate the priority of the second type of data, that is, it may be hidden. The formula indicates the first type or the second type.

It should be understood that the value of the first field includes a first value range and a second value range. When the value of the first field is in the first value range, the first field is used to indicate the priority of the first type of data. Level: When the value of the first field is in the second value range, the first field is used to indicate the priority of the second type of data. For example, the same field occupies 4 bits. If the value of 4bit is 0-9, it indicates the priority of the first type of data. If the value of 4bit is 10-15, it indicates the priority of the second type of data. The first type or the second type can be indicated implicitly.

As an implementation of the first indication information, the first indication information may be carried in two fields of the first information. For ease of description, in the embodiment of the present application, these two fields are referred to as the first field and the second field. A field, for example, information used to indicate the type of the first data is carried in the first field, and information used to indicate the priority of the first data is carried in the second field. The first field may be a newly defined field of the first information, or may be a field defined by the first information. The second field may be a newly defined field of the first information, or may be a field defined by the first information.

Exemplarily, taking the first information as SCI as an example, the first field can be a newly defined field, so that it will not affect the existing field structure of the SCI. The first field can occupy 1 bit. When the value of the first field is "0", it can indicate that the type of the first data is the first type; on the contrary, when the value of the first field is "1", you can Indicates that the type of the first data is the second type. In other embodiments, when the value of the first field is "1", it may indicate that the first data is of the second type, and when the value of the first field is "0", it may indicate that the first data is of the first type. It should be noted that, in the embodiments of the present application, the value of the first field may also be understood as the value carried by the first field in some embodiments.

Exemplarily, taking the first information as SCI as an example, the first field may be a field defined by SCI, for example, the first field may be a field defined by SCI to indicate that the transmission mode of SCI is unicast, multicast, or broadcast. Field. In this way, there is no need to add a new field, and the utilization rate of the first field can be improved. In this way, if the first field occupies at least 1 bit, it can implicitly indicate the first type or the second type. If the first field occupies multiple bits, some of the multiple bits may indicate the first type or the second type, and the bits other than the part of the multiple bits may be used to indicate the current location of the first field. The information carried can be displayed to indicate the first type or the second type.

Exemplarily, taking the first information as the SCI as an example, the second field can be a newly defined field, so that the existing field structure of the SCI will not be affected. The second field can occupy more than one bit, and can indicate the priority of the first data.

Exemplarily, taking the first information as the SCI as an example, the second field may be a field defined by the SCI, for example, the second field may be a field that has been defined by the SCI for indicating the priority of data, for example, the second field. In this way, there is no need to add a new field, and the utilization rate of the second field can be improved.

In some embodiments, as an implementation of the first indication information, the reservation status or value of the field used to indicate the priority of the first data in the first information may be used to indicate that the priority indicated by the field is valid. Or invalid. For example, the field used to indicate the priority of data may also occupy the second bit. For example, the field used to indicate the priority of data is the second field, and the second field also occupies the second bit. The value of the second bit is used It indicates whether the priority indicated by the second field is valid or invalid. For example, in some embodiments, the value of the second bit is "0", which indicates that the priority indicated by the second field is valid. On the contrary, the value of the second bit is "1", which indicates that the priority indicated by the second field is invalid. ; Or, in other embodiments, the value of the second bit is "0", indicating that the priority indicated by the second field is invalid. On the contrary, the value of the second bit is "1", indicating the priority indicated by the second field Level is valid. Or, optionally, the first indication information includes a 4-bit priority field, and when the value is 0-9, it is indicated as valid indication information of the priority of the first data. When the value of this field is 10-15, it indicates that the first data is data of the second type, and there is no corresponding priority information.

Exemplarily, if the first data is data of the second type, and the first data has no priority, the priority of the first data indicated by the first indication information may be considered invalid. For example, the first terminal device sends first information to the second terminal device. The first indication information included in the first information indicates the priority of the first data. If the field used to indicate the priority of the first data is occupied The value of the second bit indicates that the priority of the first data is invalid, so even if the second terminal device can determine the priority of the first data according to the first information, it will not use the priority of the first data, for example, based on the first data. The priority of the data determines the resource for sending the second data. For another example, if the priority of the predefined second type of data is always the lowest, and the first data is the second type of data, then the value of the second bit can indicate that the priority of the first data is invalid, that is, the second terminal Even if the device can determine the priority of the first data according to the first information, the priority of the first data will not be used.

As an implementation manner of the first indication information, the first indication information is used to indicate the type of the first data, and the first indication information may be a cyclic redundancy check (cyclic redundancy check) of the first terminal device using the first control channel. CRC) mask, which may also be a sequence parameter of a demodulation signal, such as a demodulation reference signal (DMRS), or the first indication information may be a CRC mask of the first terminal device using the first control channel And DMRS sequence parameters, where the first control channel is a channel used to indicate the first information. The parameters of the optional DMRS sequence include the initial value or initial position of the sequence.

In some embodiments, the first information may further include information indicating resource reservation information and/or resource preemption of the first terminal device. For example, the second indication information may be used to indicate resource reservation information and/or resource preemption information of the first terminal device. The resource reservation information of the first terminal device is information for determining the reserved resource of the first terminal device. The information of resource preemption can be considered to indicate whether to preempt the resource. Optionally, the first information further indicates indication information of resources reserved and/or preempted by the first terminal device.

Since the embodiment of this application has the first type of data and the second type of data, in a possible application scenario, the first terminal device and the second terminal device communicate through the V2X link based on mode2, which involves the first How do a terminal device and a second terminal device choose resources for sending data, so as to avoid resource conflicts as much as possible. For ease of description, in the following, the first terminal device sends the first data and the second terminal device sends the second data as an example.

The second terminal device may select a candidate resource for transmitting the second data from the candidate resource set according to the type of the first data.

In a possible implementation manner, the second terminal device may determine the first resource from the candidate resources. Exemplarily, the second terminal device may determine the first threshold according to the type of the first data, and exclude the first resources whose signal quality is greater than the first threshold from the candidate resource set to obtain the remaining resources. The second terminal device may determine a candidate resource for transmitting the second data among the remaining resources.

For example, in this embodiment of the present application, the priority of the first data may be determined according to the type of the first data, and the first threshold may be determined according to the priority of the first data. Specifically, the embodiment of the present application may define the corresponding relationship between respective priorities and signal quality thresholds for the first type of data and the second type of data, respectively. That is, the embodiment of the present application may define a first correspondence between the priority of the first type of data and the signal quality threshold, and may also define a second correspondence between the priority of the second type of data and the signal quality threshold, where, One priority corresponds to one threshold. The second terminal device may determine the priority of the first data according to the first information, and select the candidate resource for sending the second data from the candidate resource set according to the first correspondence. The second terminal device may determine the priority of the first data according to the first information, and select the candidate resource for sending the second data from the candidate resource set according to the second correspondence.

The second terminal device may determine the first threshold corresponding to the priority of the first data according to the priority of the first data and the first correspondence. The second terminal device may measure the resources in the candidate resource set to obtain the signal quality threshold of the measured resource. The second terminal device excludes the first resource whose signal quality is greater than the first threshold from the candidate resource set.

If the candidate resources are concentrated, and the candidate resources used for the first terminal device to send the first data, for example, the second resource is less, the second terminal device may increase the candidate resources used for sending the second data. For example, the second terminal device determines that the proportion of the second resource in the candidate resource set is less than the first threshold. For example, the proportion of the second resource in the candidate resource set is less than 20%. The second terminal device may adjust the first threshold to increase the use of Candidate resources for sending second data. Exemplarily, the second terminal device may increase the first threshold, so that the second terminal device determines fewer first resources according to the first threshold, that is, after excluding the first resource from the candidate resource set, more remaining resources are obtained. In some embodiments, the second terminal device may determine the magnitude of adjusting the first threshold according to the priority of the first data.

The candidate resource for sending the second data determined by the second terminal device from the remaining resources obtained after excluding the first resource from the candidate resource set may overlap with the candidate resource of the first terminal device, and the second terminal device may be based on the first data The priority of determines whether to preempt the candidate resource of the first terminal device to determine the candidate resource for sending the second data. It should be understood that the candidate resource of the first terminal device herein may include the resource reserved by the first terminal device, and may also include the resource being used by the first data.

As an implementation manner for the second terminal device to determine the candidate resource for sending the second data, the second terminal device may determine the candidate resource for sending the second data according to the type of the first data and the type of the second data, There can be the following situations:

In the first case, both the first data and the second data are data of the first type:

The priority of the first data is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or the priority of the first data is lower than the priority of the second data, The second terminal device determines that the resource for sending the second data is the candidate resource including the third resource. Here and in the following, the third resource includes a candidate resource of the first terminal device. For example, it may be a resource reserved for sending the first data, or it may be a resource being used by the first data.

In the second case, the first data and the second data are both data of the second type:

The second terminal device determines that the priority of the first data is lower than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or, the second terminal device determines that the first data The priority of is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data includes the third resource.

It should be noted that when the second type of data may not have priority, in this case, the second terminal device may use the predefined default candidate resource for sending the second data to not include the third resource, or by default The candidate resource for sending the second data includes the third resource.

In the third case, the first data is data of the first type, and the second data is data of the second type:

The second terminal device determines that the priority of the first data is lower than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or,

The second terminal device determines that the priority of the first data is higher than the priority of the second data. The second terminal device determines that the candidate resource for transmitting the second data includes the third resource.

It should be noted that the system may default that the priority of the first type of data is higher than the priority of the second type of data or the system may default that the priority of the first type of data is lower than the priority of the second type of data. In this case, the second terminal device can determine that the priority of the first data is higher or lower than the priority of the second data according to the type of the first data and the type of the second data. The same applies to the fourth case below, and will not be repeated below.

In the fourth case, the first data is data of the second type, and the second data is data of the first type:

The second terminal device determines that the priority of the first data is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or,

The second terminal device determines that the priority of the first data is lower than the priority of the second data. The second terminal device determines that the candidate resource for transmitting the second data includes the third resource.

For the third and fourth situations mentioned above, the corresponding relationship between the priority of the first type of data and the priority of the second type of data can be defined, so that the priority of the first data and the priority of the second data can be determined. The priority of the data.

In the fifth case, the second terminal device may determine the candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.

When the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than the second threshold, the second terminal device determines that the resource for sending the second data is a candidate resource and does not include the third resource .

Exemplarily, the second data and the first data are both data of the second type, and the signal quality threshold corresponding to the type of the first data is the third threshold. The second data is data of the second type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is the fourth signal quality threshold. The second data is data of the first type, the first data is data of the second type, and the signal quality threshold corresponding to the type of the first data is the fifth signal quality threshold. The second data is data of the first type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is the sixth signal quality threshold. The third signal quality threshold, the fourth signal quality threshold, the fifth signal quality, and the sixth signal quality may all be different. Optionally, one or more of the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold may be configured by the base station or may be pre-configured, which is not limited in the present invention.

In the embodiment of the present application, for the existence of two types of data, the first terminal device may determine the priority of the first data according to the type of the first data, and notify the second terminal device of the priority of the first data, so that the first terminal device The two terminal devices may determine a candidate resource for sending the second data from the candidate resources based on the type and/or priority of the first data, so as to try to solve the problem of resource conflict.

In the above-mentioned embodiments provided by the present application, the methods provided by the embodiments of the present application are respectively introduced from the perspective of interaction between the first terminal device and the second terminal device. In order to realize the functions in the methods provided in the above embodiments of the present application, the first terminal device and the second terminal device may include a hardware structure and/or a software module, in the form of a hardware structure, a software module, or a hardware structure plus a software module. To achieve the above functions. Whether a certain function of the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.

The communication device used to implement the foregoing method in the embodiments of the present application will be described below with reference to the accompanying drawings. Therefore, the above content can all be used in the subsequent embodiments, and the repeated content will not be repeated.

FIG. 7 is a schematic block diagram of a communication device 700 according to an embodiment of the present application. The communication device 700 can execute the behaviors and functions of the first terminal device in the foregoing method embodiments, and in order to avoid repetition, details are not described herein again. The communication device 700 may be a first terminal device or a chip applied in the first terminal device. The communication device 700 includes a processing unit 710 and a transceiving unit 720, wherein the processing unit 710 is configured to determine the priority of the first data to be sent according to the type of data, the first data being the first type of data or the second type of data ; The transceiver unit 720 is used to send first information, and the first information is used to indicate the priority of the first data.

In a possible design, the processing unit 710 is further configured to obtain first configuration information, and the first configuration information is used to configure the priority of the second type of data.

In a possible design, the processing unit 710 is further configured to obtain second configuration information, and the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, where the transmission parameter includes one of the following parameters Or a combination of multiple:

The channel occupancy ratio, the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.

In a possible design, the first information also indicates the type of the first data.

In a possible design, the first information indicates the type of the first data and the priority of the first data through the first indication information,

The first indication information is carried in the first field and the second field of the first information, the first field is used to indicate the type of the first data, and the second field is used to indicate the priority of the second data; or,

The first indication information is carried in the first field of the first message, some of the bits in the first field are used to indicate the type of the first data, and the bits in the first field except some of the bits are used to indicate the priority of the first data ;or,

The first indication information is carried in the first field of the first message. The value of the first field includes the first value range and the second value range. When the value of the first field is in the first value range, the first field is used for Indicate the priority of the first type of data, when the value of the first field is in the second value range, the first field is used to indicate the priority of the second type of data; or,

The first information indicates the priority of the first data, and the second information used for unicast or multicast indicates the type of the first message.

In a possible design, the first indication information is used to indicate the type of the first data, the first indication information is the CRC mask of the first control channel and/or the sequence parameter of the demodulation signal used by the first terminal device, and the first A control channel is a channel used to indicate the first information.

In a possible design, the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.

Among them, all relevant content of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

FIG. 8 is a schematic block diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 can execute the behavior function of the second terminal device in the foregoing method embodiment, and in order to avoid repetition, it will not be described in detail here. The communication device 800 may be a second terminal device or a chip applied in the second terminal device. The communication device 800 includes: a processing unit 810 and a transceiving unit 820. The transceiving unit 820 is used to receive first information and first data from a first terminal device. The first information is used to indicate the type of the first data. It is the first type of data or the second type of data; the processing unit 810 is configured to determine a candidate resource for sending the second data according to the type of the first data.

In a possible design, the processing unit 810 is specifically used to:

Determine the first resource from the set of candidate resources, the signal quality threshold of the first resource is greater than the first threshold, and the first threshold is determined according to the type of the first data;

The first resource is excluded from the candidate resource set, the remaining resources are obtained, and the resource for sending the second data is determined from the remaining resources.

In a possible design, the processing unit 810 is specifically used to:

The resource for sending the second data is determined according to the type of the first data and the priority of the first data and the type of the second data.

In a possible design, the first data and the second data are both data of the second type, the priority of the first data is higher than the priority of the second data, and the processing unit 810 determines a candidate for sending the second data The resource does not include the second resource; or,

The priority of the first data is higher than or equal to the priority of the second data, and the processing unit 810 determines that the candidate resource for sending the second data includes the second resource.

In a possible design, the first data is data of the first type and the second data is data of the second type, or the first data is data of the second type, and the second data is data of the first type;

The processing unit 810 determines that the priority of the first data is lower than the priority of the second data, and determines that the candidate resource for sending the second data does not include the second resource; or,

The processing unit 810 determines that the priority of the first data is higher than or equal to the priority of the second data, and determines that the candidate resource for sending the second data includes the second resource.

In a possible design, the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than or equal to the second threshold, and the processing unit 810 determines that it is used to send the second data. The candidate resource of the data includes the second resource.

In a possible design, the processing unit 810 is further configured to determine a candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.

FIG. 9 is a schematic block diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 can execute each step executed by the terminal device in the foregoing method embodiment, and may also be used to execute each step executed by the network device in the foregoing method embodiment. In order to avoid repetition, it will not be described in detail here. The communication device 900 may be a terminal device or a chip applied to the terminal device. The communication device 900 includes:

The memory 910 is used to store programs;

The communication interface 920 is used to communicate with other devices;

The processor 930 is configured to execute the program in the memory 910. When the program is executed, the processor 930 is configured to determine the priority of the first data to be sent according to the type of data. The first data is the first type of data or the first data. Two types of data, and the first information is sent through the communication interface 920, and the first information is used to indicate the priority of the first data.

Alternatively, the processor 930 is configured to receive first information and first data from the first terminal device through the communication interface 920, the first information is used to indicate the type of the first data, and the first data is the first type of data or the second data. The type of data, and the candidate resource for sending the second data is determined according to the type of the first data.

It should be understood that the communication device 900 shown in FIG. 9 may be a chip or a circuit. For example, a chip or circuit can be installed in the terminal device. The aforementioned communication interface 920 may also be a transceiver. The transceiver includes a receiver and a transmitter. Further, the communication device 900 may also include a bus system.

The processor 930, the memory 910, the receiver and the transmitter are connected by a bus system, and the processor 930 is used to execute the instructions stored in the memory 910 to control the receiver to receive signals and control the transmitter to send signals to complete the communication of this application. The steps of the first terminal device or the second terminal device in the method. Among them, the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers. The memory 910 may be integrated in the processor 930, or may be provided separately from the processor 930.

As an implementation manner, the functions of the receiver and transmitter may be implemented by a transceiver circuit or a dedicated transceiver chip. The processor 930 may be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.

The specific connection medium between the aforementioned communication interface 920, the processor 930, and the memory 910 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 910, the processor 930, and the communication interface 920 are connected by a bus in FIG. 9. The bus is represented by a thick line in FIG. It is not limited. The bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of presentation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.

In the embodiment of the present application, the processor 930 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

In the embodiment of the present application, the memory 910 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory). For example, random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.

It should be noted that the communication device in the foregoing embodiment may be a terminal device or a circuit, and may also be a chip applied to a terminal device or other combination devices or components having the functions of the foregoing terminal device. When the communication device is a terminal device, the transceiver unit may be a transceiver, which may include an antenna and a radio frequency circuit, etc., and the processing module may be a processor, such as a central processing unit (CPU). When the communication device is a component with the above-mentioned terminal device function, the transceiver unit may be a radio frequency unit, and the processing module may be a processor. When the communication device is a chip system, the transceiver unit may be an input/output interface of the chip system, and the processing module may be a processor of the chip system.

FIG. 10 shows a simplified schematic diagram of a possible design structure of the terminal device involved in the foregoing embodiment. The terminal device includes a transmitter 1001, a receiver 1002, a controller/processor 1003, a memory 1004, and a modem processor 1005.

The transmitter 1001 is used to transmit an uplink signal, and the uplink signal is transmitted to the network device described in the above embodiment via an antenna. On the downlink, the antenna receives the downlink signal (DCI) transmitted by the network device in the above embodiment. The receiver 1002 is used to receive a downlink signal (DCI) received from an antenna. In the modem processor 1005, the encoder 1006 receives service data and signaling messages to be sent on the uplink, and processes the service data and signaling messages. The modulator 1007 further processes (e.g., symbol mapping and modulation) the encoded service data and signaling messages and provides output samples. The demodulator 1009 processes (e.g., demodulates) the input samples and provides symbol estimates. The decoder 1008 processes (e.g., decodes) the symbol estimation and provides decoded data and signaling messages sent to the terminal device. The encoder 1006, the modulator 1007, the demodulator 1009, and the decoder 1008 can be implemented by a synthesized modem processor 1005. These units are processed according to the wireless access technology adopted by the wireless access network.

The controller/processor 1003 controls and manages the actions of the terminal device, and is used to execute the processing performed by the terminal device in the above-mentioned embodiment. For example, it is used to control the terminal device to determine the priority of the first data to be sent according to the type of data, where the first data is data of the first type or the data of the second type, and send the first information, the first information It is used to indicate the priority of the first data and/or other processes of the technology described in this application. As an example, the controller/processor 1003 is used to support the terminal device to execute the process S61 and/or S63 in FIG. 6.

Claims

A communication method, characterized in that it comprises:

Determining the priority of the first data to be sent according to the type of data, where the first data is the first type of data or the second type of data;

Send first information, where the first information is used to indicate the priority of the first data.
The method of claim 1, wherein the method further comprises:

Acquire first configuration information, where the first configuration information is used to configure the priority of the second type of data.
The method according to claim 1 or 2, wherein the method further comprises:

Acquire second configuration information, where the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, where the transmission parameter includes one or a combination of the following parameters:

Channel occupancy ratio, the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.
The method according to any one of claims 1-3, wherein the first information further indicates the type of the first data.
The method according to claim 4, wherein the first information indicates the type of the first data and the priority of the first data through the first indication information,

The first indication information is carried in the first field and the second field of the first information, the first field is used to indicate the type of the first data, and the second field is used to indicate the second field. The priority of the data; or,

The first indication information is carried in the first field of the first message, some bits in the first field are used to indicate the type of the first data, and the first field is excluding the partial bits. The outer bit is used to indicate the priority of the first data; or,

The first indication information is carried in the first field of the first message, and the value of the first field includes a first value range and a second value range, and when the value of the first field is located in the first field A value range, the first field is used to indicate the priority of the first type of data, and when the value of the first field is in the second value range, the first field is used to indicate all State the priority of the second type of data; or,

The first information indicates the priority of the first data, and the second information used for unicast or multicast indicates the type of the first message.
The method according to claim 4, wherein the first indication information is used to indicate the type of the first data, and the first indication information is the CRC of the first control channel used by the first terminal device. The sequence parameter of the mask and/or demodulation signal, and the first control channel is a channel used to indicate the first information.
The method according to claims 1-6, wherein the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.
A communication method, characterized in that it comprises:

Receiving first information and first data from a first terminal device, where the first information is used to indicate a type of the first data, and the first data is a first type of data or a second type of data;

The candidate resource for sending the second data is determined according to the type of the first data.
The method according to claim 8, wherein determining the candidate resource for sending the second data according to the priority of the first data comprises:

Determining a first resource from a set of candidate resources, a signal quality threshold of the first resource is greater than a first threshold, and the first threshold is determined according to the type of the first data;

The first resource is excluded from the candidate resource set, remaining resources are obtained, and the resource used for sending the second data is determined in the remaining resources.
The method according to claim 8 or 9, wherein determining the resource for sending the second data according to the type of the first data comprises:

The resource for sending the second data is determined according to the type of the first data, the priority of the first data, and the type of the second data.
The method of claim 10, wherein the first data and the second data are both data of the second type, and determining the resource for sending the second data according to the type of the first data comprises :

The priority of the first data is higher than the priority of the second data, and it is determined that the candidate resource for sending the second data does not include the second resource; or,

The priority of the first data is higher than or equal to the priority of the second data, and it is determined that the candidate resource for sending the second data includes the second resource.
The method of claim 10, wherein the first data is the first type of data, the second data is the second type of data, or the first data is all For the second type of data, the second data is the first type of data; determining the resource for sending the second data according to the type of the first data includes:

Determining that the priority of the first data is lower than the priority of the second data, and determining that the candidate resource for sending the second data does not include the second resource; or,

It is determined that the priority of the first data is higher than or equal to the priority of the second data, and it is determined that the candidate resource for sending the second data includes the second resource.
The method according to claim 10 or 12, wherein determining the resource for sending the second data according to the type of the first data comprises: the priority of the second data is higher than the priority of the first data And the detected signal quality of the first data is lower than or equal to a second threshold, and it is determined that the candidate resource for sending the second data includes the second resource.
The method according to any one of claims 10-13, wherein the method further comprises:

Determine the candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.
A communication device, characterized in that it comprises:

A processing unit, configured to determine the priority of the first data to be sent according to the type of data, the first data being the first type of data or the second type of data;

The transceiver unit is configured to send first information, where the first information is used to indicate the priority of the first data.
The device according to claim 15, wherein the processing unit is further configured to:

Acquire first configuration information, where the first configuration information is used to configure the priority of the second type of data.
The device according to claim 15 or 16, wherein the processing unit is further configured to:

Acquire second configuration information, where the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, where the transmission parameter includes one or a combination of the following parameters:

Channel occupancy ratio, the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.
The apparatus according to any one of claims 15-17, wherein the first information further indicates the type of the first data.
The apparatus according to claim 18, wherein the first information indicates the type of the first data and the priority of the first data through the first indication information,

The first indication information is carried in the first field and the second field of the first information, the first field is used to indicate the type of the first data, and the second field is used to indicate the second field. The priority of the data; or,

The first indication information is carried in the first field of the first message, some bits in the first field are used to indicate the type of the first data, and the first field is excluding the partial bits. The outer bit is used to indicate the priority of the first data; or,

The first indication information is carried in the first field of the first message, and the value of the first field includes a first value range and a second value range, and when the value of the first field is located in the first field A value range, the first field is used to indicate the priority of the first type of data, and when the value of the first field is in the second value range, the first field is used to indicate all State the priority of the second type of data; or,

The first information indicates the priority of the first data, and the second information used for unicast or multicast indicates the type of the first message.
The device according to claim 18, wherein the first indication information is used to indicate the type of the first data, and the first indication information is the CRC of the first control channel used by the first terminal device The sequence parameter of the mask and/or demodulation signal, and the first control channel is a channel used to indicate the first information.
The device according to claims 15-20, wherein the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.
A communication device, characterized in that it comprises:

The transceiver unit is configured to receive first information and first data from a first terminal device, where the first information is used to indicate the type of the first data, and the first data is the first type of data or the second Type of data;

The processing unit is configured to determine a candidate resource for sending the second data according to the type of the first data.
The device according to claim 22, wherein the processing unit is specifically configured to:

Determining a first resource from a set of candidate resources, a signal quality threshold of the first resource is greater than a first threshold, and the first threshold is determined according to the type of the first data;

The first resource is excluded from the candidate resource set, remaining resources are obtained, and the resource used for sending the second data is determined in the remaining resources.
The device according to claim 22 or 23, wherein the processing unit is specifically configured to:

The resource for sending the second data is determined according to the type of the first data, the priority of the first data, and the type of the second data.
The device of claim 24, wherein the first data and the second data are both of the second type, and the priority of the first data is higher than that of the second data. Priority, the processing unit determines that the candidate resource used to send the second data does not include the second resource; or,

The priority of the first data is higher than or equal to the priority of the second data, and the processing unit determines that the candidate resource for sending the second data includes the second resource.
The device of claim 24, wherein the first data is the first type of data, the second data is the second type of data, or the first data is all The second type of data, where the second data is the first type of data;

The processing unit determines that the priority of the first data is lower than the priority of the second data, and determines that the candidate resource for sending the second data does not include the second resource; or,

The processing unit determines that the priority of the first data is higher than or equal to the priority of the second data, and determines that the candidate resource for transmitting the second data includes the second resource.
The device according to claim 24 or 26, wherein the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than or equal to For a second threshold, the processing unit determines that the candidate resource used to send the second data includes the second resource.
The device according to any one of claims 24-27, wherein the processing unit is further configured to:

Determine the candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.
A communication device, wherein the communication device includes a processor, the processor is connected to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory , Enabling the device to implement the method according to any one of claims 1-7 or 8-14.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer executes as claimed in claims 1-7 or 8-14 Any of the methods.