CN114424655A

CN114424655A - Communication method and device

Info

Publication number: CN114424655A
Application number: CN201980100823.2A
Authority: CN
Inventors: 黎超; 刘哲; 王俊伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-10-01
Filing date: 2019-10-01
Publication date: 2022-04-29
Also published as: WO2021062855A1

Abstract

A communication method and a device can be applied to the field of vehicle networking, such as V2X, LTE-V, V2V and the like, or can be used in the fields of intelligent driving, intelligent network networking and the like, the method comprises the steps of determining the priority of first data to be sent according to the type of the data, sending first information, and the first information is used for indicating the priority of the first data. By the method, the second terminal device can determine the candidate resources for sending the second data from the candidate resources based on the type and/or priority of the first data, so as to solve the problem of resource conflict as much as possible and ensure the reliability of service transmission.

Description

Communication method and device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a communication method and apparatus.

Background

The internet of vehicles has recently received increasing attention as a key technology of future Intelligent Transportation Systems (ITS). The system of vehicle and any device (V2X) is a key technology in the car networking. V2X, which includes vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and vehicle-to-network (V2N) communication interaction. Except for V2N vehicle and network communications using uplink and downlink, the remaining V2V/V2I/V2P data communications use Sidelink (SL) for communications.

In the V2X technology, a terminal device is supported to autonomously select a transmission mode of a resource in the absence of a network. The transmission mode of the autonomous selection resource refers to that the terminal device autonomously selects a resource in resources, such as transmission resources, allocated to the terminal device by the network device for transmitting data. In the NR system, there is a mode (mode)2 in which a network device controls vehicle-to-vehicle communication, and a mode2 is controlled in a manner similar to mode4 in the LTE system, that is, in a connected state or an idle (idle) state, the network device provides a resource pool to a terminal device in the connected state or the idle state through dedicated signaling or broadcast information, and the terminal device selects a resource from the transmission resource pool to transmit to another terminal device.

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

Disclosure of Invention

The embodiment of the application provides a communication method and a communication device, which are used for providing a terminal equipment resource selection method so as to solve the problem of transmission resource conflict of a terminal device.

In a first aspect, a communication method is provided, and an execution subject of the method may be a terminal device or a chip applied to the terminal device. The following description will be given taking as an example that the execution subject is the first terminal apparatus. The method comprises the following steps: determining the priority of first data to be sent according to the type of the data, wherein the first data is the first type of data or the second type of data, and sending first information, wherein the first information is used for indicating the priority of the first data.

In a second aspect, a communication method is provided, and an execution subject of the method may be a terminal device or a chip applied to the terminal device. The following description will be given taking as an example that the execution main body is the second terminal apparatus. The method comprises the following steps: the method comprises the steps of receiving first information and first data from a first terminal device, wherein the first information is used for indicating the type of the first data, the first data is data of a first type or data of a second type, and determining candidate resources for sending the second data according to the type of the first data.

In the embodiments of the first and second aspects, the first terminal device as a transmitting end may determine the priority of the first data according to the type of the data, and notify the priority of the first data to the second terminal device as a receiving end, so that the second terminal device may determine the candidate resource for transmitting the second data from the candidate resources based on the type or priority of the first data. By adopting the scheme, even if the wireless link has the second type of data, such as non-application layer data, the priority of the second type of data can be defined, so that even if the second type of data exists, resource conflict is avoided as much as possible, and the reliability of service transmission is kept.

In a possible design of the first and second aspects, the first type of data includes any one or more of the following:

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

In a possible design of the first and second aspects, the second type of data includes any one or a combination of more than one of the following data:

feedback information, the feedback information comprising information for feeding back channel state information, CSI, and/or signal quality information;

control information, the control information includes high-level control information and/or physical layer control information, the high-level control information is information which is carried in a data channel and is used for realizing control, establishment, release, maintenance or management of a wireless link, and the physical layer control information is indication information of physical layer parameters used for receiving, sending and demodulating data;

a reference signal comprising a measurement report for making signal measurements.

The scheme enumerates several types of data of the first type and data of the second type, clearly defining the data of the first type and the data of the second type.

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

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

In a possible design of the first aspect, the method further includes: obtaining second configuration information, wherein the second configuration information is used for indicating transmission parameters associated with the priority of the first data, and the transmission parameters comprise one or more of the following parameters in combination:

the channel occupation ratio, the resource size occupied by the first data, the transmission power of the first data, the retransmission times of the first data, and the pattern of the reference signal used by the first data.

The scheme provides a way of indicating the priority of the second type of data, i.e. indirectly indicating the priority of the second type of data through the transmission parameters. The transmission parameters are various, and the indication mode is flexible.

In the embodiments of the first aspect and the second aspect, the first information may have multiple implementation manners:

illustratively, the first information further indicates a type of the first data. By adopting the scheme, the first information can indicate the priority of the first data and the type of the first data at the same time, so that the utilization rate of the first information is improved; meanwhile, other information of the type of the first data does not need to be additionally carried, and complexity is reduced.

Exemplarily, the first information indicates a type of the first data and a priority of the first data through first indication information, the first indication information is carried in a first field and a second field of the first information, the first field is used for indicating the type of the first data, and the second field is used for indicating the priority of the second data; or, the first indication information is carried in a first field of the first message, a part of bits in the first field is used for indicating the type of the first data, and bits other than the part of bits in the first field are used for indicating the priority of the first data; or, the first indication information is carried in a first field of the first message, where a value of the first field includes a first value range and a second value range, and when the value of the first field is in the first value range, the first field is used to indicate a 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 a priority of the second type of data; or, the first information indicates a priority of the first data, and the second information for unicast or multicast indicates a type of the first message. By adopting the scheme, the first information can have a plurality of explicit indication modes or implicit indication modes to indicate the priority of the first data and/or the type of the first data, and the method is flexible.

Illustratively, the first indication information is used to indicate a type of the first data, the first indication information is a CRC mask of a first control channel and/or a sequence parameter of a demodulated signal used by the first terminal device, and the first control channel is a channel used to indicate the first information. This scheme provides various implementations of the first indication information, i.e. various schemes of indicating the type of the first data are provided.

For example, the reserved status or value of the field in the first information for indicating the priority of the first data is used to indicate whether the priority indicated by the field is valid or invalid.

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

In both of the above-described schemes, the first information may be used as, in addition to the priority of the first data, other information such as resource reservation information and/or resource preemption information indicating the first terminal apparatus, and the utilization rate is high.

In a possible design of the second aspect, determining resources for transmitting the second data according to the priority of the first data includes determining first resources from a candidate set of resources, the first resources having a signal quality threshold greater than a first threshold, the first threshold being determined according to a type of the first data, excluding the first resources from the candidate set of resources, obtaining remaining resources, and determining resources for transmitting the second data among the remaining resources. With this scheme, first resources having a signal quality threshold greater than a first threshold, which may be determined according to the type of the first data, that is, resources for transmitting the second data, may be excluded from the candidate resource set.

In a possible design of the second aspect, the method further includes determining that a proportion of second resources in the candidate resource set is smaller than a first threshold, and increasing the first threshold, where the second resources are candidate resources for the first terminal device to transmit the first data. With this arrangement, the second terminal device can increase the candidate resources for transmitting the second data according to the candidate resources for transmitting 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 resources for transmitting the second data according to the priority of the first data comprises the second terminal device determining the resources for transmitting the second data according to the type of the first data and the priority of the first data and the type of the second data. The scheme provides that the second terminal device determines the resource for sending the data under the condition that the first type data and the second type data coexist, so as to avoid resource conflict as much as possible 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, the first data has a higher priority than the second data, and it is determined that the candidate resource for transmitting 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 candidate resource for sending the second data is determined to comprise the second resource.

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

determining that the first data is lower in priority than the second data, and determining that candidate resources for transmitting the second data do not include the second resources; or determining that the priority of the first data is higher than or equal to the priority of the second data, and determining that the candidate resource for transmitting the second data includes the second resource; or, determining that the priority of the first data is lower than that of the second data according to a preset rule, and determining that the candidate resource for sending the second data does not include the second resource; alternatively, 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 transmitting the second data includes the second resource. The above-described scheme provides a rule for determining a candidate resource for second data in a case where the relative sizes 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 second data has a higher priority than the first data, and the detected signal quality of the first data is lower than or equal to a second threshold, the second terminal device determining that the candidate resource for transmitting the second data includes the second resource. By adopting the scheme, the candidate resources for sending the data are determined based on the priority of the data and the signal quality threshold, and the resource conflict can be avoided as much as possible.

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

In a possible design of the second aspect, the second data and the first data are both the second type of data, and the signal quality threshold corresponding to the type of the first data is a third threshold; the second data is the second type of data, the first data is the first type of data, and a signal quality threshold corresponding to the type of the first data is a fourth signal quality threshold; the second data is the data of the first type, the first data is the data of the second type, and a 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 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 preconfigured, which is not limited in the present invention. Setting different signal quality thresholds for different types of data, respectively, as described above, more accurately determines candidate resources to transmit data.

In a third aspect, a communication device is provided, and beneficial effects may be described with reference to the first aspect, which are not described herein again, and the communication device has a function of implementing the behaviors in the method embodiment of the first aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: the processing unit is used for determining the priority of first data to be sent according to the type of the data, wherein the first data is data of a first type or data of a second type; a transceiving unit, configured to send first information, where the first information is used to indicate a priority of the first data. The modules may perform corresponding functions in the method example of the first aspect, for specific reference, detailed description of the method example is omitted here for brevity.

In a fourth aspect, a communication apparatus is provided, and advantageous effects may be found in the description of the second aspect and will not be described herein again. The communication device has the functionality to implement the actions in the method example of the second aspect described above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. In one possible design, the communication device includes: a transceiver unit, configured to receive first information and first data from a first terminal apparatus, where the first information is used to indicate a type of the first data, and the first data is first type data or second type data; and the processing unit is used for determining candidate resources for sending second data according to the type of the first data. The modules may perform corresponding functions in the method example of the second aspect, for specific reference, detailed description of the method example is given, and details are not repeated here.

In a fifth aspect, a communication device is provided, which may be the first terminal device in the above method embodiments, or a chip provided in the first terminal device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is adapted to store a computer program or instructions, and the processor is coupled to the memory and the communication interface, and when the processor executes the computer program or instructions, causes the communication device to perform the method performed by the first terminal device in the above-mentioned method embodiments.

In a sixth aspect, a communication device is provided, which may be the second terminal device in the above method embodiments, or a chip provided in the second terminal device. The communication device comprises a communication interface, a processor and optionally a memory. Wherein the memory is adapted to store a computer program or instructions, and the processor is coupled to the memory and the communication interface, and when the processor executes said computer program or instructions, causes the communication device to perform the method performed by the second terminal device in the above-mentioned method embodiments.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code which, when run, causes the method performed by the first terminal device or the second terminal device in the above aspects to be performed.

In an eighth aspect, the present application provides a chip system, where the chip system includes a processor, and is configured to implement the functions of the first terminal apparatus or the second terminal apparatus in the method of the above aspects. In one possible design, the system-on-chip further includes a memory for storing program instructions and/or data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a ninth aspect, the present application provides a computer-readable storage medium storing a computer program that, when executed, implements the method performed by the first terminal apparatus or the second terminal apparatus in the above aspects.

Drawings

FIG. 1 is a schematic view of V2X provided in the embodiments of the present application;

fig. 2 is a schematic diagram of a network architecture of V2X according to an embodiment of the present application;

fig. 3 is a schematic resource diagram for transmitting data according to an embodiment of the present application;

fig. 4 is a schematic resource diagram for transmitting data according to an embodiment of the present application;

fig. 5 is a schematic diagram of a network architecture of V2X according to an embodiment of the present application;

fig. 6 is a flowchart illustrating a communication method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

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

Before describing the present application, a part of terms in the embodiments of the present application will be briefly explained so as to be easily understood by those skilled in the art.

1) Terminal apparatus, including devices providing voice and/or data connectivity to a user, may comprise, for example, a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a V2X terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber state), a mobile station (mobile state), a remote station (remote state), an access point (access point, AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), a passenger plane (e.g., an unmanned plane, a hot-air balloon, or the like), or a user equipment (user), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal devices, portable, pocket, hand-held, computer-embedded mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which may also be referred to as on-board units (OBUs), for example. The terminal device of the present application may also be an on-board module, an on-board component, an on-board chip, or an on-board unit built into a vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board module, on-board component, on-board chip, or on-board unit.

2) Network equipment, including, for example, Access Network (AN) equipment, such as a base station (e.g., AN access point), may refer to equipment in AN access network that communicates with wireless terminal devices over one or more cells over AN air interface, or, for example, network equipment in one type of V2X technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a) system, or may also include a next generation Node B (gNB) in a 5G NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud access network (Cloud RAN) system, which is not limited in the embodiments of the present application.

3) V2X, in version (Rel) -14/15/16, V2X has established itself as a major application of device-to-device (D2D) technology. The V2X optimizes the specific application requirements of V2X based on the existing D2D technology, and needs to further reduce the access delay of V2X devices and solve the problem of resource conflict.

V2X specifically includes several application requirements, such as vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and vehicle-to-network (V2N) communication interaction. As shown in fig. 1. V2V refers to inter-vehicle communication; V2P refers to vehicle-to-person communication (including pedestrians, cyclists, drivers, or passengers); V2I refers to vehicle to network device communication, such as RSU, and another V2N may be included in V2I, V2N refers to vehicle to base station/network communication.

Among them, the RSU includes two types: the RSU of the terminal type is in a non-mobile state because the RSU is distributed on the roadside, and the mobility does not need to be considered; the RSU, being of the base station type, can provide timing synchronization and resource scheduling to the vehicle with which it communicates.

4) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. In the embodiments of the present application, "a plurality" may also be understood as "at least two". "at least one" is to be understood as meaning one or more, for example one, two or more. For example, including at least one means 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 including may 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, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first terminal device and the second terminal device are used only for distinguishing different terminal devices, and are not used for limiting functions, priorities, importance levels, and the like of the two terminal devices.

Having described some of the concepts related to the embodiments of the present application, the following describes features of the embodiments of the present application.

V2X is a key technology of the future intelligent transportation system. It enables communication between cars, between cars and base stations, and between base stations. Therefore, a series of traffic information such as real-time road conditions, road information, pedestrian information and the like is obtained, so that the driving safety is improved, the congestion is reduced, the traffic efficiency is improved, and the vehicle-mounted entertainment information is provided.

Referring to fig. 2, a network architecture of V2X is shown. Fig. 2 includes 4 terminal devices, which are UE1, UE2, UE3 and UE4, respectively, where UE1 and UE2 are located in the same lane, and UE3 and UE4 are located in the same lane. Any one of the 4 terminal devices may communicate with the remaining 3 terminal devices via a V2X link, which may also be referred to as a sidelink (sidelink). The terminal devices in fig. 2 are vehicle-mounted terminal devices as an example, and are not limited to this in practical application, and of course, the number of terminal devices in fig. 2 is only an example.

In the NR system, there is a mode2 in which a network device controls vehicle-to-vehicle communication, that is, in a connected state or an idle (idle) state, the network device provides a resource pool to a terminal device in the connected state or the idle state through dedicated signaling or broadcast information, and the terminal device selects a resource from the transmission resource pool to transmit to another terminal device.

Currently 3GPP has agreed to use control information, such as a link control information (SCI), to indicate priority for a terminal device to select resources from a pool of transmission resources to communicate with other terminal devices based on mode 2. Or under the condition of no network coverage, the terminal equipment selects resources from a pre-configured resource or resource pool to communicate with other terminal equipment.

In addition, please refer to fig. 3, which is a schematic diagram of a resource for transmitting data, and fig. 3 illustrates an example of transmitting a physical signal as a synchronization signal. Fig. 3 exemplifies a terminal apparatus including 2V 2X, where the 2 terminal apparatuses are UE1 and UE2, respectively, where UE1 is a terminal apparatus supporting LTE system, and UE2 supports NR system. As shown in fig. 3, there is partial overlap of resources for UE1 and UE2 to transmit data, and when UE1 and UE2 communicate over a V2X link, UE1 and UE2 may actively select resources from a pool of transmission resources for transmission of synchronization signals or receive synchronization signals based on the priority of synchronization signals to be transmitted. In order to solve the transmission/reception collision, the priority of the latest data (physical downlink shared channel (psch)) used by the synchronization signal is determined as the priority of the synchronization signal, and the resource for transmitting the synchronization signal is selected based on the priority to solve the transmission/reception collision. And if there is no data near the synchronization signal, the configured priority is used as the priority of the synchronization signal, as shown in fig. 4. Fig. 3 and 4 are only for determining the priority of application layer data, and for determining the resources for transmitting non-application layer data, no corresponding solution exists at present.

In view of this, the technical solutions of the embodiments of the present application are provided. In this embodiment, 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 priority of the first data to the second terminal device, so that the second terminal device may determine, from candidate resources, a candidate resource for transmitting the second data based on the type and/or priority of the first data, so as to solve the problem of resource conflict as much as possible.

The technical scheme provided by the embodiment of the application can be applied to a 5G system, or a future communication system or other similar communication systems. In addition, the technical solution provided in the embodiment of the present application may be applied to a cellular link, and may also be applied to a link between devices, for example, a device to device (D2D) link. When used for a cellular link, the second terminal device may be a network device, as the invention is not limited in this respect. The D2D link may also be referred to as sidelink, where the sidelink may also be referred to as an edge link or a sidelink, etc. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and have the same meaning. The devices of the same type may be links from the terminal device to the terminal device, links from the base station to the base station, links from the relay node to the relay node, and the like, which are not limited in this embodiment of the present application. For the link between the terminal device and the terminal device, there is a D2D link defined by release (Rel) -12/13 of 3GPP, and also a V2X link defined by 3GPP for the internet of vehicles, vehicle-to-vehicle, vehicle-to-cell, or vehicle-to-any entity, including Rel-14/15. But also the Rel-16 and subsequent releases of NR system based V2X link currently under investigation by 3 GPP.

The network architecture applied in the embodiments of the present application is described below. Please refer to fig. 5, which illustrates a network architecture applied in the present embodiment.

Fig. 5 includes 3 terminal devices and 4 network devices, where the 3 terminal devices are UE1, UE2, and UE3, respectively, and the 4 network devices are two base stations, one RUS and one Global Navigation Satellite System (GNSS). Here, fig. 5 exemplifies that all of the 3 terminal devices are V2X terminal devices. The network device may correspond to different devices in different systems, for example, the 4th generation (4G) system may correspond to an eNB, and the 5G system may correspond to a gNB in a 5G. The V2X terminal devices, which may also be referred to as vehicle-mounted devices, may communicate with each other to exchange information and share information, such as vehicle-connected state information including vehicle position, driving speed, etc., and may be used to determine road traffic conditions. The RSU may communicate with various on-board devices and/or base station devices and may be used to detect road surface conditions and guide the vehicle to select the optimal travel path. The base station is communicated with each vehicle-mounted device and/or RSU, and the GNSS can provide positioning time service information for other network elements. In addition, the vehicle-mounted equipment in the internet of vehicles can also communicate with people, and specific users can communicate with the vehicles through wireless communication means such as Wi-Fi, Bluetooth and honeycomb, so that the users can monitor and control the vehicles through corresponding mobile terminal equipment. The 3 UEs and RUS may each be under coverage of two base stations, each of which may communicate with the 3 UEs and RUS. The base station in fig. 5 is optional, and if there is a base station, there is a network coverage scenario; if the base station-free device is not in the network coverage-free scene. It should be noted that the number of terminal devices in fig. 5 is only an example, and in practical applications, the network device may provide services for a plurality of terminal devices. The terminal device in fig. 5 may be a V2X terminal device, such as a vehicle-mounted terminal device or a vehicle, for example, but the terminal device in the embodiment of the present application is not limited thereto.

The devices can communicate with each other through a sidelink and an uplink and a downlink, and the communication can use a frequency spectrum of a cellular link or an intelligent traffic frequency spectrum near 5.9 GHz. The technology by which devices communicate with each other may be enhanced based on communication network protocols, such as the LTE protocol, and may be enhanced based on the D2D technology.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

Fig. 6 is a flowchart of a communication method according to an embodiment of the present application. In the following description, the method is applied to the network architecture shown in fig. 2 or 5 as an example. In addition, the method may be performed by two communication devices, for example, a first communication device and a second communication device, wherein the first communication device may be a terminal device or a network device, or a communication device capable of supporting the terminal device or the network device to implement functions required by the method, or the first communication device may be a communication chip (e.g., a communication baseband chip system) capable of supporting the terminal device or the network device to implement functions required by the method. The same is true for the second communication device, which may be a terminal device or a network device or a communication device capable of supporting the terminal device or the network device to implement the functions required for the method, or may be a communication chip (e.g., a baseband communication chip system) capable of supporting the terminal device or the network device to implement the functions required for the method.

For convenience of description, hereinafter, the first communication device and the second communication device are also referred to as a first terminal device and a second terminal device, that is, the first communication device is taken as the first terminal device, and the second communication device is taken as the second terminal device as an example. For example, hereinafter, the first terminal device may be the UE in fig. 2 or fig. 5, the second terminal device may also be the UE in fig. 2 or fig. 5, and the method is applied to the network architecture shown in fig. 2, for example, the first terminal device may be any one of the UEs 1-4, and the second terminal device may be any one of the UEs 1-4 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, the second terminal device may be any one of UE1-UE3 except the first terminal device, and may also be RSU 1; still alternatively, the first terminal device may be the RSU1 and the second terminal device may be any one of the UEs 1-UE 3. The embodiment of the application does not limit the implementation modes of the first terminal device and the second terminal device. It should be noted that the embodiment of the present application is only an example implemented by the first terminal device and the second terminal device, and is not limited to this scenario.

S61, the first terminal device determines a priority of first data to be transmitted according to a type of the data, where the first data is a first type of data or a second type of data;

s62, the first terminal device transmits first information and first data, and the second terminal device receives the first information and the first data, wherein the first information is used to indicate a priority of the first data.

It should be understood that the first terminal device may transmit the first data at the same time as the first information is transmitted, or may delay the transmission of the first data. Here, the simultaneous transmission may be considered that a time difference between the first terminal apparatus transmitting the first information and the first data is smaller than a first time period, and the relative delay transmission may be considered that the first terminal apparatus transmits the first information but does not currently transmit the first data but transmits the first data after a second time period, the second time period being longer than the first time period.

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

In the embodiment of the present application, at least the existing data includes application layer data and non-application layer data, wherein the application layer data may also be regarded as data from the application layer, or the data is sent at the application layer or received at the application layer. In contrast, non-application layer data may be considered data from the physical layer, or the data may be transmitted at the physical layer or received at the physical layer. It should be understood that the application layer data is relative to the non-application layer data, and may include at least one or a combination of more of a data packet of the application layer, a data packet of a service to be transmitted, and data of the V2X layer. The non-application layer data may include at least one or a combination of feedback information, control information, and reference signals. The feedback information may include at least information for feeding back Channel State Information (CSI) and/or signal quality information, where the CSI information may include at least one of information for feeding back a Channel Quality Indication (CQI), Rank Indication (RI) information, Precoding Matrix Indication (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 higher layer control information and/or physical layer control information. The higher layer control information refers to information carried in a data channel for implementing control, establishment, release, maintenance or management of a radio link. Such as control information for connection establishment of the sidelink, control information for connection release of the sidelink, control information for managing sidelink synchronization information, such as Radio Link Management (RLM) messages. The physical layer control information is information indicating physical layer parameters used for receiving, transmitting, and demodulating data. The physical layer parameters may include indication information of time-frequency resources for receiving or transmitting data, indication information of Modulation and Coding (MCS), indication information of retransmission times, indication information of transmission power, acknowledgement information of hybrid automatic repeat request (HARQ), and the like. The indication information of the physical layer parameters can be carried in a physical control channel or a physical layer data channel. The reference signals include reference signals for making signal measurements, such as signals for measuring RSRP, signals for measuring RSRQ, signals for RLM.

In some examples, the application layer data and the non-application layer data may be considered as two different types of data, e.g., the application layer data is a first type of data and the non-application layer data is a second type of data; alternatively, the application layer data is a second type of data and the non-application layer data is a first type of data. In the following, it is exemplified that the first type of data is application layer data and the second type of data is non-application layer data.

In addition to supporting the transmission or reception of the first type of data, the embodiment of the present application may also support the transmission or reception of the second type of data, so that each terminal device needs to determine how to transmit or receive the first type of data or the second type of data based on the mode 2.

Currently, for a first type of data, a terminal device determines resources to transmit or receive the data based on a priority of the first type of data, but for a second type of data, there is no corresponding solution. Therefore, in the embodiment of the present application, a corresponding priority may be defined for the second type of data, multiple priorities may be defined, and the priorities defined by the different types of data may be the same or different. Illustratively, 5 priorities may be defined for the first type of data, the 5 priorities being priority 1, priority 2, priority 3, priority 4 and priority 5, respectively; 5 priorities may also be defined for the second type of data as priority 1, priority 2, priority 3, priority 4 and priority 5, respectively. Illustratively, 5 priorities may be defined for the first type of data, the 5 priorities being priority 1, priority 2, priority 3, priority 4 and priority 5, respectively; 5 priorities may also be defined for the second type of data as priority 6, priority 7, priority 8, priority 9 and priority 10, respectively.

The network device may configure its respective priorities for the second type of data of the different sub-types, and as an example configuration scheme, the network device may inform the first terminal device of the priorities of the second type of data through the first configuration information. The first configuration information may be used to configure a priority of the second type of data. If the first data is the second type of data, 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 transmitted. As an implementation of the first configuration information, the first configuration information may indicate a transmission parameter associated with a priority of the first type of data, by which the priority of the first type of data is indicated. Similarly, the first configuration information may also indicate a transmission parameter associated with a priority of the second type of data, by which the priority of the second type of data is indicated. In some instances, the information indicating the transmission parameters associated with the priority of the data may be referred to as second configuration information. For example, the transmission parameters may include one or more of the following parameters: the channel occupation ratio, the size of the resource occupied by the data, the transmission power of the data, the retransmission times of the data, and the pattern of the reference signal used by the data. For example, for the first data, the transmission parameter may be at least one of a channel occupancy ratio, a resource size occupied by the first data, a transmission power of the first data, a number of retransmissions of the first data, and a pattern of a reference signal used by the first data. Optionally, the patterns of the different reference signals, and the positions and/or the numbers of the corresponding reference signals in the time slot are different.

When the first terminal device needs to send the first data, the priority of the first data may be determined according to the type of the first data, and the priority of the first data may be notified to the second terminal device. The first terminal device may inform the priority of the first data to the second terminal device through the first information. For example, the first terminal device transmits first information indicating the priority of the first data to the second terminal device. The second terminal device may determine a 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 transmitting 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 for the first terminal device to transmit the first data, or may also be a resource being used by the first terminal device to transmit the first data.

In a possible embodiment, the first information may further indicate a type of the first data, or the first information indicates a priority of the first data by 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, and for convenience of description, the field is referred to as a first field in this embodiment of the application. The first field may be a field newly defined by the first information, or may be a field defined by the first information.

For example, taking the first information as Sidelink Control Information (SCI) as an example, the first field may be a newly defined field, so that the defined field structure of SCI is not affected; it may also be an old field, thus not increasing the SCI size. The first field may occupy a plurality of bits (bits), and then a part of the plurality of bits may indicate a type of the first data, and bits other than the part of the plurality of bits may be used for a priority of the first data. The partial bit may be 1bit, and when the value of the partial bit is "0", it may indicate that the type of the first data is the first type; in contrast, when the value of the partial bit is "1", it can be indicated that the type of the first data is the second type. In other embodiments, when the value of the partial bit is "1", it may indicate that the first data is of the second type, and when the value of the partial bit is "0", it may indicate that the first data is of the first type.

For example, in the case that the first information is SCI, the first field may be a defined field, for example, the first field may be a field for indicating that the transmission mode of the SCI is unicast, multicast or broadcast. Therefore, the utilization rate of the first field can be improved without newly adding fields. In this way, the first field occupies a plurality of bits, and then a part of the bits in the plurality of bits may 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 may be indicated by displaying, and bits other than the part of the bits in the plurality of bits may be used to indicate information currently carried by the first field, for example, priority. Alternatively, some of the bits may indicate the priority of the first type of data, and the bits other than the some of the bits may be used to indicate the priority of the second type of data, that is, the first type or the second type may be implicitly indicated.

It should be understood that the value of the first field includes a first range of values and a second range of values, wherein when the value of the first field is in the first range of values, 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 range of values, 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 4 bits is 0 to 9, the priority of the first type of data is indicated, and if the value of 4 bits is 10 to 15, the priority of the second type of data is indicated, that is, the first type or the second type may also be implicitly indicated by this way.

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

For example, taking the first information as SCI, the first field may be a newly defined field, which does not affect the existing field structure of SCI. The first field may occupy 1bit (bit), and when the value of the first field is "0", it may indicate that the type of the first data is the first type; in contrast, when the value of the first field is "1", it may indicate 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 embodiment 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.

Illustratively, taking the first information as SCI for example, the first field may be a field defined by SCI, for example, the first field may be a field defined by SCI for indicating the transmission mode of SCI as unicast, multicast or broadcast. Therefore, the utilization rate of the first field can be improved without newly adding fields. In this way, the first field occupies at least 1bit, and the first type or the second type can be implicitly indicated. If the first field occupies a plurality of bits, part of the bits in the plurality of bits can indicate the first type or the second type, and the bits except the part of the bits in the plurality of bits can be used for indicating the information currently carried by the first field, namely, the first type or the second type can be displayed and indicated.

For example, taking the first information as SCI, the second field may be a newly defined field, which does not affect the existing field structure of SCI. The second field may occupy more than 1bit and may indicate the priority of the first data.

Illustratively, taking the first information as SCI for example, the second field may be a field defined by SCI, for example, the second field may be a field defined by SCI for indicating the priority of data, for example, the second field. Therefore, the utilization rate of the second field can be improved without newly adding the field.

In some embodiments, as an implementation manner of the first indication information, a reservation status or a value of a field in the first information for indicating the priority of the first data may be used to indicate whether the priority indicated by the field is valid or invalid. For example, the field for indicating the priority of the data may also occupy a second bit, for example, the field for indicating the priority of the data is a second field, which also occupies a second bit, the value of which is used to indicate whether the priority indicated by the second field is valid or invalid. For example, in some embodiments, the second bit has a value of "0" indicating that the priority indicated by the second field is valid, and conversely, the second bit has a value of "1" indicating that the priority indicated by the second field is not valid; alternatively, in other embodiments, the second bit has a value of "0" to indicate that the priority indicated by the second field is invalid, and conversely, the second bit has a value of "1" to indicate that the priority indicated by the second field is valid. Or, optionally, the first indication information includes a priority field with 4 bits, and when the value is 0 to 9, the first indication information is indicated as valid indication information of the priority of the first data. And when the field takes a value of 10-15, indicating that the first data is the data of the second type and has no corresponding priority information.

Illustratively, if the first data is 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 transmits first information to the second terminal device, the first information including first indication information indicating the priority of the first data, and if the value of the second bit occupied by the field indicating the priority of the first data indicates that the priority of the first data is invalid, the second terminal device does not use the priority of the first data even if the priority of the first data can be determined from the first information, for example, the resource for transmitting the second data is determined based on the priority of the first data. For another example, if it is predefined that the priority of the second type of data is always the lowest and the first data is of the second type, the value of the second bit may indicate that the priority of the first data is not valid, i.e. the second terminal device does not use the priority of the first data even though the priority of the first data may be determined from the first information.

As an implementation manner of the first indication information, the first indication information is used to indicate a type of the first data, the first indication information may be a Cyclic Redundancy Check (CRC) mask used by the first terminal apparatus for the first control channel, may also be a sequence parameter of a demodulation signal, for example, a demodulation reference signal (DMRS), or may also be used by the first terminal apparatus for the first control channel, where the first control channel is a channel used to indicate the first information. The parameters of the optional DMRS sequences include initial values or initial positions of the sequences.

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

Since the first type of data and the second type of data exist in the embodiment of the present application, in one possible application scenario, the first terminal device and the second terminal device communicate via the V2X link based on mode2, which relates to how the first terminal device and the second terminal device select resources for transmitting data, so as to avoid resource collision as much as possible. For convenience of description, the first terminal device transmits the first data, and the second terminal device transmits the second data will be taken as an example hereinafter.

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 one possible implementation, the second terminal device may determine the first resource from the candidate resources. For example, the second terminal device may determine a first threshold according to the type of the first data, and exclude the first resource with the signal quality greater than the first threshold from the candidate resource set, resulting in the remaining resources. The second terminal device may determine a candidate resource for transmitting the second data among the remaining resources.

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

The second terminal device may determine that the first threshold corresponds 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 resources in the candidate set of resources to obtain a threshold for signal quality of the measured resources. The second terminal device excludes from the candidate resource set the first resource having a signal quality greater than the first threshold.

If the candidate resources for the first terminal device to transmit the first data are less, for example, the second resources, in the candidate resource set, the second terminal device may increase the candidate resources for transmitting 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 candidate resources for transmitting the second data. For example, the second terminal device may increase the first threshold, so that the second terminal device determines that the first resource is less according to the first threshold, i.e. the remaining resource obtained after excluding the first resource from the candidate resource set is more. In some embodiments, the second terminal device may determine the magnitude of the adjustment to the first threshold in dependence on a priority of the first data.

The candidate resource for transmitting 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 determine whether to preempt the candidate resource of the first terminal device according to the priority of the first data to determine the candidate resource for transmitting the second data. It should be understood that here the candidate resource of the first terminal device may include a resource reserved by the first terminal device and may also include a resource being used by the first data.

As an implementation manner of determining, by the second terminal device, a candidate resource for transmitting the second data, the second terminal device may determine the candidate resource for transmitting the second data according to the type of the first data and the type of the second data, and there may be the following cases:

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

the priority of the first data is higher than that of the second data, and the second terminal device determines that the candidate resource for transmitting 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 transmitting the second data is the candidate resource and includes the third resource. Here and in the following, the third resource includes a candidate resource of the first terminal device, and may be, for example, a resource reserved for transmitting the first data or a resource being used by the first data.

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

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

It is noted that when the second type of data may not have priority, in this case, the second terminal device may exclude the third resource according to a predefined default candidate resource for transmitting the second data, or may include the third resource by default candidate resource for transmitting the second data.

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

the second terminal device determines that the priority of the first data is lower than that of the second data, and the second terminal device determines that the candidate resource for transmitting the second data does not include the third resource; alternatively, the first and second electrodes may be,

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

It is noted that the system may default to a first type of data having a higher priority than a second type of data or the system may default to a first type of data having a lower priority than a second type of data. In this case, the second terminal apparatus may 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 following fourth case, which is not described in detail below.

In a 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 transmitting the second data does not include the third resource; alternatively, the first and second electrodes may be,

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

For the third and fourth cases described above, the correspondence between the priority of the first type of data and the priority of the second type of data may be defined, so that the priority of the first data and the priority of the second data may be determined.

In a fifth case, the second terminal device may determine a candidate resource for transmitting the second data according to the detected signal quality of the first data and a 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 a second threshold, the second terminal device determines that the resource for transmitting the second data is a candidate resource and does not include a third resource.

Illustratively, the second data and the first data are both data of a 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 a second type, the first data is data of a 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 data of a first type, the first data is data of a second type, and the signal quality threshold corresponding to the type of the first data is a fifth signal quality threshold. The second data is data of a 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 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 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 preconfigured, which is not limited in the present invention.

In this embodiment, 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 priority of the first data to the second terminal device, so that the second terminal device may determine, from candidate resources, a candidate resource for transmitting the second data based on the type and/or priority of the first data, so as to solve the problem of resource conflict as much as possible.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of interaction between the first terminal device and the second terminal device, respectively. In order to implement the functions in the method provided by the embodiment of the present application, the first terminal device and the second terminal device may include a hardware structure and/or a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure and a software module. Whether any of the above-described functions is implemented as a hardware structure, a software module, or a hardware structure plus a software module depends upon the particular application and design constraints imposed on the technical solution.

The following describes a communication device for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 7 is a schematic block diagram of a communication apparatus 700 according to an embodiment of the present application. The communication device 700 is capable of performing the actions and functions of the first terminal device in the above-described method embodiments, and therefore, in order to avoid repetition, detailed description thereof is omitted here. The communication device 700 may be the first terminal device or a chip applied to the first terminal device. The communication apparatus 700 includes: the processing unit 710 and the transceiver 720, wherein the processing unit 710 is configured to determine a priority of first data to be sent according to a type of the data, and the first data is first type data or second type data; the transceiving unit 720 is configured to transmit first information, where the first information is used to indicate a priority of the first data.

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

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

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

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

the first indication information is carried in a first field and a second field of the first information, the first field is used for indicating the type of the first data, and the second field is used for indicating the priority of the second data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, a part of bits in the first field are used for indicating the type of the first data, and bits except the part of bits in the first field are used for indicating the priority of the first data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, the value of the first field comprises 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 for indicating 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 for indicating the priority of the second type of data; alternatively, the first and second electrodes may be,

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

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

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

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Fig. 8 is a schematic block diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 is capable of performing the behavior function of the second terminal device in the above method embodiments, and therefore, in order to avoid repetition, the details are not described here. The communication device 800 may be the second terminal device, or may be a chip applied to the second terminal device. The communication apparatus 800 includes: the terminal comprises a processing unit 810 and a transceiving unit 820, wherein the transceiving unit 820 is configured to receive first information and first data from a first terminal device, the first information is used to indicate a type of the first data, and the first data is first type data or second type data; the processing unit 810 is configured to determine candidate resources for transmitting the second data according to the type of the first data.

In one possible design, the processing unit 810 is specifically configured to:

determining a first resource from the candidate resource set, wherein 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;

excluding the first resource from the candidate resource set, obtaining remaining resources, and determining a resource for transmitting the second data in the remaining resources.

In one possible design, the processing unit 810 is specifically configured to:

and determining the resource for sending the second data according to the type of the first data, the priority of the first data and the type of the second data.

In one possible design, the first data and the second data are both data of a second type, the priority of the first data is higher than the priority of the second data, and the processing unit 810 determines that the candidate resource for transmitting the second data does not include the second resource; alternatively, the first and second electrodes may be,

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 transmitting the second data includes the second resource.

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

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 transmitting the second data does not include the second resource; alternatively, the first and second electrodes may be,

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 transmitting the second data includes the second resource.

In one 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, the processing unit 810 determines that the candidate resource for transmitting the second data includes the second resource.

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

Fig. 9 is a schematic block diagram of a communication apparatus 900 according to an embodiment of the present application. The communication apparatus 900 can perform the steps performed by the terminal device in the foregoing method embodiment, and may also be configured to perform the steps performed by the network device in the foregoing method embodiment, so that details are not described here to avoid repetition. The communication apparatus 900 may be a terminal apparatus or a chip applied to a terminal apparatus, and the communication apparatus 900 includes:

a memory 910 for storing programs;

a communication interface 920 for communicating with other devices;

a processor 930 configured to execute the program in the memory 910, wherein when the program is executed, the processor 930 is configured to determine a priority of first data to be transmitted according to a type of the data, the first data being the first type of data or the second type of data, and transmit first information through the communication interface 920, the first information being used for indicating 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, where the first information is used to indicate a type of the first data, and the first data is data of the first type or data of a second type, and determine a candidate resource for transmitting the second data 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. Such as a chip or circuit that may be provided within the terminal device. The 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 via a bus system, and the processor 930 is configured to execute instructions stored in the memory 910 to control the receiver to receive signals and control the transmitter to transmit signals, thereby completing the steps of the first terminal device or the second terminal device in the communication method of the present application. Wherein the receiver and the transmitter may be the same or different physical entities. When the same physical entity, may be collectively referred to as a transceiver. The memory 910 may be integrated with the processor 930 or may be provided separately from the processor 930.

As an implementation manner, the functions of the receiver and the transmitter may be considered to be implemented by a transceiving circuit or a transceiving dedicated chip. Processor 930 may be considered to be implemented by a special purpose processing chip, processing circuit, processor, or a general purpose chip.

The specific connection medium among the communication interface 920, the processor 930 and the memory 910 is not limited in the embodiments of the present application. In the embodiment of the present application, the memory 910, the processor 930, and the communication interface 920 are connected through a bus in fig. 9, the bus is represented by a thick line in fig. 9, and the connection manner between other components is merely illustrative and not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.

In the embodiments 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, a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a 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), and may also be a volatile memory (RAM), for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

The communication device in the above embodiments may be a terminal device or a circuit, or may be a chip applied to a terminal device or other combined device or component having the functions of the terminal device. When the communication device is a terminal device, the transceiver unit may be a transceiver, and may include an antenna, a radio frequency circuit, and the like, and the processing module may be a processor, for example: a Central Processing Unit (CPU). When the communication device is a component having the functions of the terminal equipment, 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 above-described 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 configured to transmit an uplink signal, which is transmitted to the network device described in the above embodiments via the antenna. On the downlink, the antenna receives a downlink signal (DCI) transmitted by the network device in the above-described embodiment. The receiver 1002 is configured to receive a downlink signal (DCI) received from an antenna. In modem processor 1005, an encoder 1006 receives traffic data and signaling messages to be transmitted on the uplink and processes the traffic data and signaling messages. A modulator 1007 further processes (e.g., symbol maps and modulates) the coded traffic data and signaling messages and provides output samples. A demodulator 1009 processes (e.g., demodulates) the input samples and provides symbol estimates. A decoder 1008 processes (e.g., decodes) the symbol estimates and provides decoded data and signaling messages that are sent to the terminal device. Encoder 1006, modulator 1007, demodulator 1009, and decoder 1008 may be implemented by a combined modem processor 1005. These elements are processed according to the radio access technology employed by the radio access network.

The controller/processor 1003 controls and manages the operation of the terminal device, and executes the processing performed by the terminal device in the above-described embodiment. For example, to control a terminal device to determine a priority of first data to be transmitted according to a type of the data, where the first data is of a first type or a second type, and to transmit first information indicating the priority of the first data and/or other processes of the technology described herein. The controller/processor 1003 is used, as an example, to support the terminal device in performing the processes S61 and/or S63 in fig. 6.

Claims

A method of communication, comprising:

determining the priority of first data to be sent according to the type of the data, wherein the first data is the data of a first type or the data of a second type;

and sending first information, wherein the first information is used for indicating the priority of the first data.
The method of claim 1, wherein the method further comprises:

acquiring first configuration information, wherein the first configuration information is used for configuring the priority of the second type of data.
The method of claim 1 or 2, wherein the method further comprises:

obtaining second configuration information, wherein the second configuration information is used for indicating transmission parameters associated with the priority of the first data, and the transmission parameters comprise one or more of the following parameters in combination:

the channel occupation ratio, the resource size occupied by the first data, the transmission power of the first data, the retransmission times of the first data, and the pattern of the reference signal used by the first data.
A method according to any of claims 1-3, wherein the first information further indicates a type of the first data.
The method of claim 4, wherein the first information indicates a type of the first data and a priority of the first data through first indication information,

the first indication information is carried in a first field and a second field of the first information, the first field is used for indicating the type of the first data, and the second field is used for indicating the priority of the second data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, a part of bits in the first field are used for indicating the type of the first data, and bits other than the part of bits in the first field are used for indicating the priority of the first data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, 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 for indicating 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 for indicating the priority of the second type of data; alternatively, the first and second electrodes may be,

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

receiving first information and first data from a first terminal device, wherein the first information is used for indicating the type of the first data, and the first data is data of a first type or data of a second type;

and determining candidate resources for sending second data according to the type of the first data.
The method of claim 8, wherein determining candidate resources for transmitting second data based on the priority of the first data comprises:

determining a first resource from a candidate resource set, the first resource having a signal quality threshold greater than a first threshold, the first threshold being determined based on a type of the first data;

excluding the first resource from the candidate resource set, obtaining remaining resources, and determining a resource for transmitting the second data in the remaining resources.
The method of claim 8 or 9, wherein determining resources to transmit second data based on the type of the first data comprises:

and determining the resource for sending the second data 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 of the second type of data, and wherein determining resources to send second data based on the type of the first data comprises:

the priority of the first data is higher than that of the second data, and the candidate resource for sending the second data is determined not to comprise the second resource; alternatively, the first and second electrodes may be,

the priority of the first data is higher than or equal to the priority of the second data, and the candidate resource for transmitting the second data is determined to comprise the second resource.
The method of claim 10, wherein the first data is the first type of data and the second data is the second type of data, or wherein the first data is the second type of data and the second data is the first type of data; determining resources to transmit second data according to the type of the first data comprises:

determining that the first data is lower in priority than the second data, and determining that candidate resources for transmitting the second data do not include the second resources; alternatively, the first and second electrodes may be,

determining that the first data has a priority greater than or equal to a priority of the second data, and determining that the candidate resource for transmitting the second data includes the second resource.
The method of claim 10 or 12, wherein determining resources to transmit second data based on 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, determining that the candidate resource for transmitting the second data comprises the second resource.
The method of any of claims 10-13, further comprising:

and determining candidate resources for sending the second data according to the detected signal quality of the first data and a signal quality threshold corresponding to the type of the first data.
A communications apparatus, comprising:

the processing unit is used for determining the priority of first data to be sent according to the type of the data, wherein the first data is data of a first type or data of a second type;

a transceiving unit, configured to send first information, where the first information is used to indicate a priority of the first data.
The apparatus as recited in claim 15, said processing unit to further:

acquiring first configuration information, wherein the first configuration information is used for configuring the priority of the second type of data.
The apparatus as recited in claim 15 or 16, said processing unit to further:

obtaining second configuration information, wherein the second configuration information is used for indicating transmission parameters associated with the priority of the first data, and the transmission parameters comprise one or more of the following parameters in combination:

the channel occupation ratio, the resource size occupied by the first data, the transmission power of the first data, the retransmission times of the first data, and the pattern of the reference signal used by the first data.
The apparatus of any of claims 15-17, wherein the first information further indicates a type of the first data.
The apparatus of claim 18, wherein the first information indicates a type of the first data and a priority of the first data through first indication information,

the first indication information is carried in a first field and a second field of the first information, the first field is used for indicating the type of the first data, and the second field is used for indicating the priority of the second data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, a part of bits in the first field are used for indicating the type of the first data, and bits other than the part of bits in the first field are used for indicating the priority of the first data; alternatively, the first and second electrodes may be,

the first indication information is carried in a first field of the first message, 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 for indicating 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 for indicating the priority of the second type of data; alternatively, the first and second electrodes may be,

the first information indicates a priority of the first data, and the second information for unicast or multicast indicates a type of the first message.
The apparatus of claim 18, wherein the first indication information is used to indicate a type of the first data, the first indication information is a CRC mask and/or a sequence parameter of a demodulated signal used by the first terminal apparatus for a first control channel, and the first control channel is a channel used to indicate the first information.
An apparatus as claimed in claims 15 to 20, wherein the first information further comprises information indicating resource reservation information and/or resource preemption for the first terminal apparatus.
A communications apparatus, comprising:

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

and the processing unit is used for determining candidate resources for sending second data according to the type of the first data.
The apparatus as recited in claim 22, said processing unit to:

determining a first resource from a candidate resource set, the first resource having a signal quality threshold greater than a first threshold, the first threshold being determined based on a type of the first data;

excluding the first resource from the candidate resource set, obtaining remaining resources, and determining a resource for transmitting the second data in the remaining resources.
The apparatus according to claim 22 or 23, wherein the processing unit is specifically configured to:

and determining the resource for sending the second data according to the type of the first data, the priority of the first data and the type of the second data.
The apparatus of claim 24, wherein the first data and the second data are both of the second type of data, the first data having a higher priority than the second data, the processing unit to determine that the candidate resource for sending the second data does not include the second resource; alternatively, the first and second electrodes may be,

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 transmitting the second data includes the second resource.
The apparatus of claim 24, wherein the first data is the first type of data and the second data is the second type of data, or wherein the first data is the second type of data and 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 transmitting the second data does not include the second resource; alternatively, the first and second electrodes may be,

the processing unit determines that the first data has a priority higher than or equal to a priority of the second data, and determines that the candidate resource for transmitting the second data includes the second resource.
The apparatus of claim 24 or 26, wherein the second data has a higher priority than the first data, and wherein the detected signal quality of the first data is below or equal to a second threshold, the processing unit to determine that the candidate resource for transmitting the second data comprises the second resource.
The apparatus of any of claims 24-27, wherein the processing unit is further to:

and determining candidate resources for sending the second data according to the detected signal quality of the first data and a signal quality threshold corresponding to the type of the first data.
A communication apparatus, comprising a processor coupled to a memory, the memory storing a computer program, the processor being configured to execute the computer program stored in the memory such that the apparatus implements the method of any of claims 1-7 or 8-14.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a computer, causes the computer to perform the method of any of claims 1-7 or 8-14.