WO2021062855A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

Info

Publication number
WO2021062855A1
WO2021062855A1 PCT/CN2019/109784 CN2019109784W WO2021062855A1 WO 2021062855 A1 WO2021062855 A1 WO 2021062855A1 CN 2019109784 W CN2019109784 W CN 2019109784W WO 2021062855 A1 WO2021062855 A1 WO 2021062855A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
type
priority
resource
information
Prior art date
Application number
PCT/CN2019/109784
Other languages
English (en)
Chinese (zh)
Inventor
黎超
刘哲
王俊伟
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/109784 priority Critical patent/WO2021062855A1/fr
Priority to CN201980100823.2A priority patent/CN114424655A/zh
Publication of WO2021062855A1 publication Critical patent/WO2021062855A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of mobile communication technology, and in particular to a communication method and device.
  • V2X vehicle-to-everything
  • V2X includes direct communication between vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), and Vehicle-to-network (V2N) communication interaction. Except for V2N vehicles and network communication which use uplink and downlink, the other V2V/V2I/V2P data communication uses sidelink (SL) for communication.
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • V2P vehicle-to-pedestrian
  • V2N Vehicle-to-network
  • SL sidelink
  • the terminal device is supported to independently select the transmission mode of resources when there is no network.
  • the transmission mode of autonomously selecting resources refers to the resources allocated by the terminal equipment to the terminal equipment by the network equipment, such as sending resources, which are used for transmitting data.
  • the network equipment controls the communication between the vehicle and the vehicle in mode 2.
  • the control method of mode 2 is similar to the mode 4 in the LTE system, that is, in the connected state or the idle state, the network device passes through Dedicated signaling or broadcast information provides a resource pool for connected or idle terminal devices, and the terminal device selects resources from the sending resource pool to send to other terminal devices.
  • the terminal device can select resources from the sending resource pool based on the priority of the data to be sent, but there is no corresponding solution for the situation that the data to be sent has no priority.
  • the embodiments of the present application provide a communication method and device, which are used to provide a method for selecting terminal equipment resources to solve the problem of terminal device transmission resource conflicts.
  • a communication method is provided.
  • the execution subject of the method may be a terminal device or a chip applied to the terminal device.
  • the following describes an example where the execution subject is the first terminal device.
  • the method includes: determining the priority of the first data to be sent according to the type of the data, the first data being the first type of data or the second type of data, and sending the first information, the first information is used to indicate The priority of the first data.
  • a communication method is provided.
  • the execution subject of the method may be a terminal device or a chip applied to the terminal device.
  • the following describes an example where the execution subject is the second terminal device.
  • the method includes: receiving first information and first data from a first terminal device, where the first information is used to indicate a type of the first data, and the first data is a first type of data or a second type According to the type of the first data, a candidate resource for sending the second data is determined.
  • the first terminal device as the transmitting end may determine the priority of the first data according to the type of data, and notify the second terminal as the receiving end of the priority of the first data Therefore, the second terminal device can determine the candidate resource for transmitting the second data from the candidate resources based on the type or priority of the first data.
  • the priority of the second type of data can be defined, so as to ensure that even if the second type of data exists, resource conflicts are avoided as much as possible. Save the reliability of service transmission.
  • the first type of data includes any one or more combinations of the following data:
  • the second type of data includes any one or a combination of the following data:
  • Feedback information where the feedback information includes information used to feed back channel state information CSI and/or signal quality information;
  • Control information where the control information includes high-level control information and/or physical layer control information, and the high-level control information refers to information carried on a data channel and used to control, establish, release, maintain, or manage a wireless link
  • the physical layer control information is indication information of physical layer parameters used for data reception, transmission, and demodulation
  • the reference signal includes a measurement report used for signal measurement.
  • the method further includes acquiring first configuration information, where the first configuration information is used to configure the priority of the second type of data.
  • the priority of the second type of data is defined, so that the first terminal device can determine the priority of the first data based on the priority of the second type of data.
  • the method further includes: acquiring second configuration information, where the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, wherein the transmission
  • the parameters include one or a combination of the following parameters:
  • Channel occupancy ratio the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.
  • This solution provides a way to indicate the priority of the second type of data, that is, indirectly indicating the priority of the second type of data through transmission parameters. There are many transmission parameters, and the indication method is more flexible.
  • the first information can be implemented in multiple ways:
  • the first information further indicates the type of the first data.
  • the first information can indicate the priority of the first data and the type of the first data at the same time, which improves the utilization of the first information; at the same time, there is no need to carry other information of the type of the first data, which reduces the complexity. degree.
  • the first information indicates the type of the first data and the priority of the first data through first indication information
  • the first indication information is carried in the first field and the first field of the first information.
  • Second field the first field is used to indicate the type of the first data
  • the second field is used to indicate the priority of the second data; or, the first indication information is carried in the first data
  • the first field of a message some of the bits in the first field are used to indicate the type of the first data, and the bits in the first field other than the partial bits are used to indicate the first data
  • the first indication information is carried in the first field of the first message, and the value of the first field includes the first value range and the second value range, when the first field The value of is in the first value range, and the first field is used to indicate the priority of the first type of data.
  • the first field is A field is used to indicate the priority of the second type of data; or, the first information indicates the priority of the first data, and the second information used for unicast or multicast indicates the first message type.
  • the first information can have multiple explicit indication modes or implicit indication modes to indicate the priority of the first data and/or the type of the first data, which is relatively flexible.
  • the first indication information is used to indicate the type of the first data
  • the first indication information is the CRC mask and/or demodulation signal of the first control channel used by the first terminal device.
  • Sequence parameter the first control channel is a channel used to indicate the first information.
  • the reservation state or value of the field used to indicate the priority of the first data in the first information is used to indicate that the priority indicated by the field is valid or invalid.
  • the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.
  • the first information can not only indicate the priority of the first data, but also can be used for other purposes, such as indicating resource reservation information and/or resource preemption information of the first terminal device, and the utilization rate is relatively high.
  • determining the resource for sending the second data according to the priority of the first data includes determining the first resource from a set of candidate resources, and the signal quality threshold of the first resource is greater than the first resource.
  • a threshold the first threshold is determined according to the type of the first data, the first resource is excluded from the candidate resource set, the remaining resources are obtained, and the remaining resources are determined to be used for sending State the resource of the second data.
  • the first resource whose signal quality threshold is greater than the first threshold can be excluded from the set of candidate resources.
  • the first threshold can be determined according to the type of the first data, that is, from the candidate resources according to the type of the first data. Determine the resource used to send the second data.
  • the method further includes determining that the proportion of the second resource in the candidate resource set is less than a first threshold, and increasing the first threshold, wherein the second resource is The first terminal device sends the candidate resource of the first data.
  • the second terminal device can increase the candidate resources for sending the second data according to the candidate resources for sending the first data by the first terminal device, so as to ensure the reliability of the second data transmission as much as possible.
  • determining the resource for sending the second data according to the priority of the first data includes the second terminal device according to the type of the first data and the first data The priority of and the type of the second data determine the resource for sending the second data.
  • the first data and the second data are both the second type of data, and the priority of the first data is higher than the priority of the second data, It is determined that the candidate resource for sending the second data does not include the second resource; or, the priority of the first data is higher than or equal to the priority of the second data, and it is determined to be used for sending the first data.
  • the candidate resource of the second data includes the second resource.
  • the first data is the first type of data
  • the second data is the second type of data
  • the first data is the second type.
  • Type of data the second data is the first type of data:
  • the priority of the first data is lower than the priority of the second data, and it is determined that the candidate resource for sending the second data does not include the second resource; or, it is determined that the priority of the first data is The priority is higher than or equal to the priority of the second data, and it is determined that the candidate resource for sending the second data includes the second resource; or, the priority of the first data is determined according to a preset rule Is lower than the priority of the second data, and it is determined that the candidate resource for sending the second data does not include the second resource; or, it is determined that the priority of the first data is higher than or equal to the first data.
  • the priority of the data and it is determined that the candidate resource used to send the second data includes the second resource.
  • the above solution provides a rule for determining candidate resources of the second data when the relative magnitudes of the priority of the first data and the priority of the second data are different.
  • the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than or equal to the second threshold, so The second terminal device determines that the candidate resource used to send the second data includes the second resource.
  • the candidate resources for sending data are determined based on the priority of the data and the signal quality threshold, and resource conflicts can be avoided as much as possible.
  • the method further includes the second terminal device determining, according to the detected signal quality of the first data, and a signal quality threshold corresponding to the type of the first data for The resource for sending the second message.
  • the second data and the first data are both data of the second type, and the signal quality threshold corresponding to the type of the first data is a third threshold;
  • the second data is data of the second type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is a fourth signal quality threshold;
  • the second data is the first type of data, the first data is the second type of data, and the signal quality threshold corresponding to the type of the first data is a fifth signal quality threshold;
  • the second data Is the first type of data, the first data is the first type of data, and the signal quality threshold corresponding to the type of the first data is a sixth signal quality threshold.
  • the third signal quality threshold, the fourth signal quality threshold, the fifth signal quality, and the sixth signal quality may all be different.
  • one or more of the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold may be configured by the base station or may be pre-configured, which is not limited in the present invention.
  • different signal quality thresholds are set for different types of data, so as to more accurately determine the candidate resources of the data to be sent.
  • a communication device is provided.
  • the communication device has the function of realizing the behavior in the method embodiment of the first aspect.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a processing unit configured to determine the priority of the first data to be sent according to the type of the data, the first data being the first type of data or the second type of data
  • the transceiver unit is used to send first information, and the first information is used to indicate the priority of the first data.
  • These modules can perform the corresponding functions in the above-mentioned method example of the first aspect. For details, please refer to the detailed description in the method example, which will not be repeated here.
  • a communication device is provided, and the beneficial effects can be referred to the description of the second aspect and will not be repeated here.
  • the communication device has the function of realizing the behavior in the method example of the second aspect described above.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the communication device includes: a transceiving unit, configured to receive first information and first data from a first terminal device, the first information is used to indicate the type of the first data, and The first data is a first type of data or a second type of data; the processing unit is configured to determine a candidate resource for sending the second data according to the type of the first data.
  • These modules can perform the corresponding functions in the method example of the second aspect. For details, please refer to the detailed description in the method example, which will not be repeated here.
  • a communication device may be the first terminal device in the foregoing method embodiment, or a chip set in the first terminal device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled with the memory and a communication interface.
  • the communication device is caused to execute the method executed by the first terminal device in the foregoing method embodiment. method.
  • a communication device may be the second terminal device in the foregoing method embodiment, or a chip set in the second terminal device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled with the memory and a communication interface.
  • the communication device is caused to execute the operations executed by the second terminal device in the foregoing method embodiments. method.
  • a computer program product comprising: computer program code, when the computer program code is running, the above aspects are executed by the first terminal device or the second terminal device The method is executed.
  • the present application provides a chip system, which includes a processor, configured to implement the functions of the first terminal device or the second terminal device in the methods of the foregoing aspects.
  • the chip system further includes a memory for storing program instructions and/or data.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a computer-readable storage medium that stores a computer program.
  • the computer program When the computer program is executed, the first terminal device or the second terminal device in the above aspects is implemented Method of execution.
  • FIG. 1 is a schematic diagram of V2X provided by an embodiment of the application.
  • FIG. 2 is a schematic diagram of a V2X network architecture provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of a resource for sending data provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a resource for sending data provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of a V2X network architecture provided by an embodiment of this application.
  • FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram of another structure of a communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of still another structure of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of still another structure of another communication device provided by an embodiment of this application.
  • a terminal device includes a device that provides voice and/or data connectivity to a user, for example, it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal device may communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal device may include user equipment (UE), wireless terminal devices, mobile terminal devices, device-to-device communication (device-to-device, D2D) terminal devices, V2X terminal devices, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal devices, Internet of things (IoT) terminal devices, subscriber units, subscriber stations, mobile stations , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), aircraft (such as UAV, hot air balloon, civil aviation passenger plane, etc.) or user device, etc.
  • UE user equipment
  • D2D device-to-device communication
  • V2X terminal devices machine-to-machine/machine-type communication
  • M2M/MTC machine-to-machine/machine-type communications
  • M2M/MTC Internet of things
  • IoT Internet of things
  • a mobile phone or called a "cellular" phone
  • a computer with a mobile terminal device, a portable, pocket-sized, handheld, and a mobile device with a built-in computer, and so on.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal devices.
  • the vehicle-mounted terminal devices are, for example, also called on-board units (OBU). ).
  • the terminal device of the present application may also be an in-vehicle module, an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit that is built into a vehicle as one or more components or units.
  • On-board components, on-board chips, or on-board units can implement the method of the present application.
  • Network equipment including, for example, access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal devices through one or more cells over the air interface in the access network
  • AN access network
  • a base station e.g., access point
  • IP Internet Protocol
  • the base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network.
  • IP Internet Protocol
  • the RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system, Or it may include the next generation node B (gNB) in the 5G NR system, or it may include the centralized unit (CU) in the cloud radio access network (Cloud RAN) system. And distributed unit (DU), the embodiment of the present application is not limited.
  • LTE long term evolution
  • NodeB or eNB or e-NodeB, evolutional NodeB evolutional NodeB
  • LTE-A long term evolution-advanced
  • gNB next generation node B
  • CU centralized unit
  • Cloud RAN cloud radio access network
  • DU distributed unit
  • V2X in the version (Rel)-14/15/16, V2X as a major application of device-to-device (device-to-device, D2D) technology was successfully established.
  • V2X will optimize the specific application requirements of V2X on the basis of the existing D2D technology. It is necessary to further reduce the access delay of V2X devices and solve the problem of resource conflicts.
  • V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and There are several application requirements such as vehicle-to-network (V2N) communication and interaction.
  • V2V refers to the communication between vehicles
  • V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to the communication between vehicles and network equipment, such as RSU
  • V2N refers to the communication between the vehicle and the base station/network.
  • RSU includes two types: terminal type RSU, because it is located on the roadside, this terminal type RSU is in a non-mobile state, and there is no need to consider mobility; base station type RSU can provide timing synchronization for vehicles communicating with it And resource scheduling.
  • system and “network” in the embodiments of this application can be used interchangeably.
  • a plurality of may also be understood as “at least two”.
  • At least one can be understood as one or more, for example, one, two or more.
  • including at least one refers to including one, two or more, and does not limit which ones are included.
  • the included can be A, B, C, A and B, A and C, B and C, or A and B and C.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects.
  • first terminal device and the second terminal device are only used to distinguish different terminal devices, but not to limit the functions, priority, or importance of the two terminal devices.
  • V2X is the key technology of the future intelligent transportation system. It enables communication between vehicles, vehicles and base stations, and base stations and base stations. In this way, a series of traffic information such as real-time road conditions, road information, and pedestrian information can be obtained, thereby improving driving safety, reducing congestion, improving traffic efficiency, and providing in-vehicle entertainment information.
  • Figure 2 is a schematic diagram of a V2X network architecture.
  • Figure 2 includes 4 terminal devices, which are UE1, UE2, UE3, and UE4, respectively.
  • UE1 and UE2 are located in the same lane
  • UE3 and UE4 are located in the same lane.
  • Any one of the four terminal devices can communicate with the other three terminal devices through a V2X link, which can also be referred to as a side link.
  • the terminal device in FIG. 2 is an example of a vehicle-mounted terminal device, which is not limited to this in practical applications. Of course, the number of terminal devices in FIG. 2 is just an example.
  • the network equipment controls the communication between the vehicle and the vehicle in mode2, that is, in the connected or idle state, the network equipment provides the terminal equipment in the connected or idle state through dedicated signaling or broadcast information.
  • Resource pool the terminal device selects resources from the sending resource pool to send to other terminal devices.
  • 3GPP agrees to use control information, such as sidelink control information (SCI) to indicate priority for the terminal device to select resources from the sending resource pool based on mode2 to communicate with other terminal devices. Or under the condition of no network coverage, the terminal device selects resources from a pre-configured resource or resource pool to communicate with other terminal devices.
  • SCI sidelink control information
  • FIG. 3 is a schematic diagram of a resource for sending data.
  • FIG. 3 takes the sending physical signal as a synchronization signal as an example.
  • Fig. 3 takes as an example two V2X terminal devices, which are UE1 and UE2 respectively.
  • UE1 is a terminal device supporting the LTE standard
  • UE2 is a terminal device supporting the NR standard.
  • the resources of UE1 and UE2 for sending data partially overlap.
  • UE1 and UE2 communicate through the V2X link
  • UE1 and UE2 can actively select resources from the sending resource pool based on the priority of the synchronization signal to be sent. Send or receive synchronization signals.
  • the priority of the latest data (physical sidelink shared channel (PSSCH)) used by the synchronization signal is determined as the priority of the synchronization signal, and the synchronization signal is selected for transmission based on this priority. Resources to resolve the sending and receiving conflicts. If there is no data near the synchronization signal, the configured priority is used as the priority of the synchronization signal, as shown in Figure 4.
  • Figures 3 and 4 are only for determining the priority of application layer data. For non-application layer data, how to determine the resource for transmitting non-application layer data, there is currently no corresponding solution.
  • the first terminal device may determine the priority of the first data according to the type of the first data, and notify the second terminal device of the priority of the first data, so that the first terminal device
  • the two terminal devices may determine a candidate resource for sending the second data from the candidate resources based on the type and/or priority of the first data, so as to try to solve the problem of resource conflict.
  • the technical solutions provided by the embodiments of the present application may be applied to 5G systems, or applied to future communication systems or other similar communication systems.
  • the technical solutions provided by the embodiments of the present application can be applied to a cellular link, and can also be applied to a link between devices, such as a device to device (D2D) link.
  • the second terminal device When used in a cellular link, the second terminal device may be a network device, which is not limited in the present invention.
  • the D2D link can also be called a sidelink, and the side link can also be called a side link or a secondary link.
  • the aforementioned terms all refer to links established between devices of the same type, and have the same meaning.
  • the so-called devices of the same type can be the link between the terminal device and the terminal device, the link between the base station and the base station, and the link between the relay node and the relay node.
  • This application does not limit this.
  • D2D links defined by 3GPP version (Rel)-12/13, and there are also car-to-car, car-to-mobile, or car-to-any entity defined by 3GPP for the Internet of Vehicles.
  • V2X link including Rel-14/15. It also includes the V2X link based on the NR system of Rel-16 and subsequent versions that are currently being studied by 3GPP.
  • FIG. 5 is a network architecture applied in the embodiment of this application.
  • Figure 5 includes 3 terminal devices and 4 network devices.
  • the 3 terminal devices are UE1, UE2, and UE3, and the 4 network devices are two base stations, one RUS and one Global Navigation Satellite System (Global Navigation Satellite System). System, GNSS).
  • Figure 5 takes these three terminal devices as V2X terminal devices as an example.
  • the network equipment corresponds to different equipment in different systems.
  • 4G 4th generation
  • eNB eNB
  • 5G 5G
  • V2X terminal equipment can also be called vehicle-mounted equipment.
  • Vehicle-mounted equipment can communicate with each other to realize information exchange and information sharing. For example, vehicle linkage status information including vehicle location and driving speed can be used to determine road traffic conditions.
  • RSU can communicate with various vehicle-mounted equipment and/or base station equipment, and can be used to detect road surface conditions and guide vehicles to select the best driving path.
  • the base station communicates with each vehicle-mounted device and/or RSU, and GNSS can provide positioning and timing information for other network elements.
  • the in-vehicle devices in the Internet of Vehicles can also communicate with people, and specific users can communicate with the vehicle through wireless communication means such as Wi-Fi, Bluetooth, and cellular, so that the user can monitor and control the vehicle through the corresponding mobile terminal device.
  • These 3 UEs and RUS can all be covered by two base stations, and each base station can communicate with these 3 UEs and RUS.
  • the base station in Figure 5 is optional.
  • the terminal device in FIG. 5 may be a V2X terminal device, for example, a vehicle-mounted terminal device or a vehicle, but the terminal device in the embodiment of the present application is not limited thereto.
  • Each of the above-mentioned devices can communicate with each other through the side link and the uplink and the downlink, and the spectrum of the cellular link can be used for communication, and the intelligent traffic spectrum around 5.9 GHz can also be used.
  • the technology for each device to communicate with each other can be enhanced based on the communication network protocol (such as the LTE protocol), and can be enhanced based on the D2D technology.
  • FIG. 6 is a flowchart of a communication method provided by an embodiment of the present application.
  • the application of this method to the network architecture shown in FIG. 2 or 5 is taken as an example.
  • the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a terminal device or a network device, or can support a terminal device or a network device.
  • the communication device that implements the functions required by the method, or the first communication device may be a communication chip (for example, a communication baseband chip system) that can support the terminal device or network device to implement the functions required by the method.
  • the second communication device is a communication chip (for example, a communication baseband chip system) that can support the terminal device or network device to implement the functions required by the method.
  • the second communication device may be a terminal device or a network device or a communication device capable of supporting the terminal device or network device to implement the functions required by the method, or the second communication device may be capable of supporting a terminal device or A communication chip (such as a baseband communication chip system) for the network device to implement the functions required by the method.
  • a communication chip such as a baseband communication chip system
  • the first communication device and the second communication device are also referred to as the first terminal device and the second terminal device, that is, the first communication device is the first terminal device and the second communication device is the second terminal.
  • the first terminal device below may be the UE in FIG. 2 or FIG. 5, and the second terminal device may also be the UE in FIG. 2 or FIG. 5.
  • the method is applied to the network architecture shown in FIG.
  • the terminal device may be any UE among UE1-UE4, and the second terminal device may be any UE among UE1-UE4 except the first terminal device.
  • the method is applied to the network architecture shown in FIG.
  • the first terminal device may be any one of UE1-UE3, and the second terminal device may be any one of UE1-UE3 except the first terminal device.
  • the UE may also be RSU1; or, the first terminal device may be RSU1, and the second terminal device may be any one of UE1 to UE3.
  • the embodiments of the present application do not limit the implementation manners of the first terminal device and the second terminal device. It should be noted that the embodiment of the present application only takes the execution by the first terminal device and the second terminal device as an example, and is not limited to this scenario.
  • the first terminal device determines the priority of the first data to be sent according to the type of data, where the first data is the first type of data or the second type of data;
  • the first terminal device sends first information and first data, and the second terminal device receives the first information and first data, where the first information is used to indicate the priority of the first data.
  • the first terminal device may send the first data or delay sending the first data.
  • the simultaneous transmission can be considered that the time difference between the first terminal device sending the first information and the first data is less than the first duration
  • the relative delayed transmission can be considered that the first terminal device sends the first information, but does not currently send the first data. Instead, the first data is sent after the second duration, and the second duration is greater than the first duration.
  • the second terminal device determines a candidate resource for sending the second data according to the type of the first data.
  • At least the existing data includes application layer data and non-application layer data.
  • application layer data can also be considered as data from the application layer, or, the data is sent at the application layer or in the application layer. Layer reception.
  • non-application layer data can be considered to be that the data comes from the physical layer, or the data is sent or received at the physical layer.
  • the application layer data here is relative to non-application layer data, and may include at least one or a combination of application layer data packets, data packets of services to be sent, and V2X layer data.
  • the non-application layer data may include at least one or a combination of feedback information, control information, and reference signals.
  • the feedback information may at least include information used to feed back channel state information (CSI) and/or signal quality information
  • the CSI information may at least include information used to feed back channel quality indication (CQI)
  • CQI channel quality indication
  • RI rank indication
  • PMI precoding matrix indicator
  • 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.
  • RSRP measurement reference signal received power
  • RSSI received signal strength indicator
  • the control information may include high-level control information and/or physical layer control information.
  • the high-level control information refers to the information carried in the data channel and used to realize the control, establishment, release, maintenance or management of the wireless link.
  • the control information used for the connection establishment of the side link the control information used for the connection release of the side link, and the control information used to manage the synchronization information of the side link, such as radio link management. , RLM) message.
  • the physical layer control information is indication information of physical layer parameters used for data reception, transmission, and demodulation.
  • the physical layer parameters can include indication information of time-frequency resources for receiving or sending data, indication information of modulation and coding (MCS), indication information of the number of retransmissions, indication information of transmission power, and hybrid automatic repeat request (hybrid automatic repeat request). automatic repeat request, HARQ) response information, etc.
  • the indication information of these physical layer parameters can be carried on the physical control channel or the physical layer data channel.
  • the reference signal includes a reference signal used for signal measurement, such as a signal used for measuring RSRP, a signal used for measuring RSRQ, and a signal used for RLM.
  • application layer data and non-application layer data can be considered as two different types of data.
  • application layer data is the first type of data
  • non-application layer data is the second type of data
  • application layer data is the second type of data
  • layer data is the second type of data
  • non-application layer data is the first type of data.
  • the first type of data is application layer data
  • the second type of data is non-application layer data as an example.
  • the embodiments of this application can also support the sending or receiving of the second type of data. Therefore, each terminal device needs to determine how to send or receive the first type of data or the second type based on mode2. The data.
  • the terminal device determines the resource for sending or receiving data based on the priority of the first type of data, but there is no corresponding solution for the second type of data.
  • the corresponding priority may be defined for the second type of data, multiple priorities may be defined, and the priorities of different types of data definitions may be the same or different.
  • five priority levels can be defined for the first type of data.
  • the five priority levels are priority 1, priority 2, priority 3, priority 4, and priority 5; for the second type of data You can also define five priority levels as priority 1, priority 2, priority 3, priority 4, and priority 5.
  • five priority levels can be defined for the first type of data.
  • the five priority levels are priority 1, priority 2, priority 3, priority 4, and priority 5; for the second type of data It is also possible to define 5 priority levels as priority 6, priority 7, priority 8, priority 9, and priority 10.
  • the network device may configure respective priorities for different sub-types of the second type of data.
  • the network device may notify the first terminal of the priority of the second type of data through the first configuration information Device.
  • the first configuration information may be used to configure the priority of the second type of data. If the first data is data of the second type, the first terminal device may determine the priority corresponding to the first data according to the first configuration information and the specific subtype of the first data to be sent.
  • the first configuration information may indicate a transmission parameter associated with the priority of the first type of data, and the transmission parameter indicates the priority of the first type of data.
  • the first configuration information may also indicate a transmission parameter associated with the priority of the second type of data, and the priority of the second type of data is indicated by the transmission parameter.
  • the information used to indicate the transmission parameters associated with the priority of the data may be referred to as second configuration information.
  • the transmission parameters of the first terminal device may include one or a combination of the following parameters: channel occupancy ratio, size of resource occupied by data, transmission power of data, number of retransmissions of data, reference signal used by data Pattern.
  • the transmission parameters may be the channel occupancy ratio, the resource size occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data. At least one.
  • the positions and/or numbers of the corresponding reference signals in the time slot are different.
  • the first terminal device When the first terminal device needs to send the first data, it may determine the priority of the first data according to the type of the first data, and may notify the second terminal device of the priority of the first data.
  • the first terminal device may inform the second terminal device of the priority of the first data through the first information.
  • the first terminal device sends first information to the second terminal device, where the first information is used to indicate the priority of the first data.
  • the second terminal device may determine the candidate resource for transmitting the second data according to the priority of the first data.
  • the second terminal device determines whether the candidate resource for sending the second data preempts the resource of the first terminal device.
  • the resource of the first terminal device may be considered as a resource reserved for the first terminal device.
  • the reserved resource may be a candidate resource used by the first terminal device to send the first data, or may also be The first terminal device transmits the resource being used by the first data.
  • the first information may also indicate the type of the first data, or the first information may indicate the priority of the first data through the type of the first data. In some embodiments, the first information indicates the type of the first data and/or the priority of the first data through the first indication information.
  • the first indication information may be carried in a field of the first information.
  • this field is referred to as the first field.
  • the first field may be a newly defined field of the first information, or may be a field defined by the first information.
  • the first field can be a newly defined field, so that it will not affect the field structure defined by the SCI; it can also be an original field. This does not increase the size of the SCI.
  • the first field can occupy multiple bits (bits), then some of the multiple bits can indicate the type of the first data, and the bits of the multiple bits other than the partial bits can be used for priority of the first data. level.
  • Part of the bit can be 1 bit, when the value of the part of the bit is "0", it can indicate that the type of the first data is the first type; on the contrary, when the value of the part of the bit is "1", it can indicate the type of the first data It is the second type. In other embodiments, when the value of the partial bit is "1", it can indicate that the first data is of the second type, and when the value of the partial bit is "0", it can indicate that the first data is of the first type.
  • the first field may be a defined field, for example, the first field may be a field used to indicate that the transmission mode of the SCI is unicast, multicast, or broadcast. In this way, there is no need to add a new field, and the utilization rate of the first field can be improved.
  • the first field occupies multiple bits, and some of the multiple bits can indicate the type of the first data, for example, the first type or the second type, that is, the first type or the second type can be displayed. Type.
  • the bits other than the part of the bits can be used to indicate the information currently carried by the first field, such as priority.
  • some of the multiple bits may indicate the priority of the first type of data, and the bits of the multiple bits other than the part of the bits may be used to indicate the priority of the second type of data, that is, it may be hidden.
  • the formula indicates the first type or the second type.
  • the value of the first field includes a first value range and a second value range.
  • the first field is used to indicate the priority of the first type of data.
  • Level When the value of the first field is in the second value range, the first field is used to indicate the priority of the second type of data. For example, the same field occupies 4 bits. If the value of 4bit is 0-9, it indicates the priority of the first type of data. If the value of 4bit is 10-15, it indicates the priority of the second type of data. The first type or the second type can be indicated implicitly.
  • the first indication information may be carried in two fields of the first information.
  • these two fields are referred to as the first field and the second field.
  • a field for example, information used to indicate the type of the first data is carried in the first field, and information used to indicate the priority of the first data is carried in the second field.
  • the first field may be a newly defined field of the first information, or may be a field defined by the first information.
  • the second field may be a newly defined field of the first information, or may be a field defined by the first information.
  • the first field can be a newly defined field, so that it will not affect the existing field structure of the SCI.
  • the first field can occupy 1 bit.
  • the value of the first field is "0" it can indicate that the type of the first data is the first type; on the contrary, when the value of the first field is "1", you can Indicates that the type of the first data is the second type.
  • the value of the first field is "1” it may indicate that the first data is of the second type
  • the value of the first field is "0" it may indicate that the first data is of the first type.
  • the value of the first field may also be understood as the value carried by the first field in some embodiments.
  • the first field may be a field defined by SCI, for example, the first field may be a field defined by SCI to indicate that the transmission mode of SCI is unicast, multicast, or broadcast. Field. In this way, there is no need to add a new field, and the utilization rate of the first field can be improved. In this way, if the first field occupies at least 1 bit, it can implicitly indicate the first type or the second type. If the first field occupies multiple bits, some of the multiple bits may indicate the first type or the second type, and the bits other than the part of the multiple bits may be used to indicate the current location of the first field. The information carried can be displayed to indicate the first type or the second type.
  • the second field can be a newly defined field, so that the existing field structure of the SCI will not be affected.
  • the second field can occupy more than one bit, and can indicate the priority of the first data.
  • the second field may be a field defined by the SCI, for example, the second field may be a field that has been defined by the SCI for indicating the priority of data, for example, the second field. In this way, there is no need to add a new field, and the utilization rate of the second field can be improved.
  • the reservation status or value of the field used to indicate the priority of the first data in the first information may be used to indicate that the priority indicated by the field is valid. Or invalid.
  • the field used to indicate the priority of data may also occupy the second bit.
  • the field used to indicate the priority of data is the second field, and the second field also occupies the second bit.
  • the value of the second bit is used It indicates whether the priority indicated by the second field is valid or invalid.
  • the value of the second bit is "0", which indicates that the priority indicated by the second field is valid.
  • the value of the second bit is "1", which indicates that the priority indicated by the second field is invalid.
  • the value of the second bit is "0", indicating that the priority indicated by the second field is invalid.
  • the value of the second bit is "1", indicating the priority indicated by the second field Level is valid.
  • the first indication information includes a 4-bit priority field, and when the value is 0-9, it is indicated as valid indication information of the priority of the first data. When the value of this field is 10-15, it indicates that the first data is data of the second type, and there is no corresponding priority information.
  • the priority of the first data indicated by the first indication information may be considered invalid.
  • the first terminal device sends first information to the second terminal device.
  • the first indication information included in the first information indicates the priority of the first data. If the field used to indicate the priority of the first data is occupied The value of the second bit indicates that the priority of the first data is invalid, so even if the second terminal device can determine the priority of the first data according to the first information, it will not use the priority of the first data, for example, based on the first data.
  • the priority of the data determines the resource for sending the second data.
  • the value of the second bit can indicate that the priority of the first data is invalid, that is, the second terminal Even if the device can determine the priority of the first data according to the first information, the priority of the first data will not be used.
  • the first indication information is used to indicate the type of the first data
  • the first indication information may be a cyclic redundancy check (cyclic redundancy check) of the first terminal device using the first control channel.
  • CRC cyclic redundancy check
  • CRC mask which may also be a sequence parameter of a demodulation signal, such as a demodulation reference signal (DMRS), or the first indication information may be a CRC mask of the first terminal device using the first control channel
  • DMRS sequence parameters where the first control channel is a channel used to indicate the first information.
  • the parameters of the optional DMRS sequence include the initial value or initial position of the sequence.
  • the first information may further include information indicating resource reservation information and/or resource preemption of the first terminal device.
  • the second indication information may be used to indicate resource reservation information and/or resource preemption information of the first terminal device.
  • the resource reservation information of the first terminal device is information for determining the reserved resource of the first terminal device.
  • the information of resource preemption can be considered to indicate whether to preempt the resource.
  • the first information further indicates indication information of resources reserved and/or preempted by the first terminal device.
  • the first terminal device and the second terminal device communicate through the V2X link based on mode2, which involves the first How do a terminal device and a second terminal device choose resources for sending data, so as to avoid resource conflicts as much as possible.
  • mode2 the first terminal device sends the first data
  • the second terminal device sends the second data as an example.
  • the second terminal device determines a candidate resource for sending the second data according to the type of the first data.
  • 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.
  • the second terminal device may determine the first resource from the candidate resources.
  • the second terminal device may determine the first threshold according to the type of the first data, and exclude the first resources whose signal quality is greater than the first threshold from the candidate resource set to obtain the remaining resources.
  • the second terminal device may determine a candidate resource for transmitting the second data among the remaining resources.
  • the priority of the first data may be determined according to the type of the first data
  • the first threshold may be determined according to the priority of the first data.
  • the embodiment of the present application may define the corresponding relationship between respective priorities and signal quality thresholds for the first type of data and the second type of data, respectively. That is, the embodiment of the present application may define a first correspondence between the priority of the first type of data and the signal quality threshold, and may also define a second correspondence between the priority of the second type of data and the signal quality threshold, where, One priority corresponds to one threshold.
  • the second terminal device may determine the priority of the first data according to the first information, and select the candidate resource for sending the second data from the candidate resource set according to the first correspondence.
  • the second terminal device may determine the priority of the first data according to the first information, and select the candidate resource for sending the second data from the candidate resource set according to the second correspondence.
  • the second terminal device may determine the first threshold corresponding to the priority of the first data according to the priority of the first data and the first correspondence.
  • the second terminal device may measure the resources in the candidate resource set to obtain the signal quality threshold of the measured resource.
  • the second terminal device excludes the first resource whose signal quality is greater than the first threshold from the candidate resource set.
  • the second terminal device may increase the candidate resources used for sending the second data. For example, the second terminal device determines that the proportion of the second resource in the candidate resource set is less than the first threshold. For example, the proportion of the second resource in the candidate resource set is less than 20%.
  • the second terminal device may adjust the first threshold to increase the use of Candidate resources for sending second data. Exemplarily, the second terminal device may increase the first threshold, so that the second terminal device determines fewer first resources according to the first threshold, that is, after excluding the first resource from the candidate resource set, more remaining resources are obtained. In some embodiments, the second terminal device may determine the magnitude of adjusting the first threshold according to the priority of the first data.
  • the candidate resource for sending the second data determined by the second terminal device from the remaining resources obtained after excluding the first resource from the candidate resource set may overlap with the candidate resource of the first terminal device, and the second terminal device may be based on the first data
  • the candidate resource of the first terminal device herein may include the resource reserved by the first terminal device, and may also include the resource being used by the first data.
  • the second terminal device may determine the candidate resource for sending the second data according to the type of the first data and the type of the second data, There can be the following situations:
  • both the first data and the second data are data of the first type:
  • the priority of the first data is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or the priority of the first data is lower than the priority of the second data, The second terminal device determines that the resource for sending the second data is the candidate resource including the third resource.
  • the third resource includes a candidate resource of the first terminal device. For example, it may be a resource reserved for sending the first data, or it may be a resource being used by the first data.
  • the first data and the second data are both data of the second type:
  • the second terminal device determines that the priority of the first data is lower than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or, the second terminal device determines that the first data The priority of is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data includes the third resource.
  • the second terminal device may use the predefined default candidate resource for sending the second data to not include the third resource, or by default The candidate resource for sending the second data includes the third resource.
  • the first data is data of the first type
  • the second data is data of the second type
  • the second terminal device determines that the priority of the first data is lower than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or,
  • the second terminal device determines that the priority of the first data is higher than the priority of the second data.
  • the second terminal device determines that the candidate resource for transmitting the second data includes the third resource.
  • the system may default that the priority of the first type of data is higher than the priority of the second type of data or the system may default that the priority of the first type of data is lower than the priority of the second type of data.
  • the second terminal device can determine that the priority of the first data is higher or lower than the priority of the second data according to the type of the first data and the type of the second data. The same applies to the fourth case below, and will not be repeated below.
  • the first data is data of the second type
  • the second data is data of the first type
  • the second terminal device determines that the priority of the first data is higher than the priority of the second data, and the second terminal device determines that the candidate resource for sending the second data does not include the third resource; or,
  • the second terminal device determines that the priority of the first data is lower than the priority of the second data.
  • the second terminal device determines that the candidate resource for transmitting the second data includes the third resource.
  • the corresponding relationship between the priority of the first type of data and the priority of the second type of data can be defined, so that the priority of the first data and the priority of the second data can be determined.
  • the priority of the data can be defined, so that the priority of the first data and the priority of the second data can be determined.
  • the second terminal device may determine the candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.
  • the second terminal device determines that the resource for sending the second data is a candidate resource and does not include the third resource .
  • the second data and the first data are both data of the second type, and the signal quality threshold corresponding to the type of the first data is the third threshold.
  • the second data is data of the second type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is the fourth signal quality threshold.
  • the second data is data of the first type, the first data is data of the second type, and the signal quality threshold corresponding to the type of the first data is the fifth signal quality threshold.
  • the second data is data of the first type, the first data is data of the first type, and the signal quality threshold corresponding to the type of the first data is the sixth signal quality threshold.
  • the third signal quality threshold, the fourth signal quality threshold, the fifth signal quality, and the sixth signal quality may all be different.
  • one or more of the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold may be configured by the base station or may be pre-configured, which is not limited in the present invention.
  • the first terminal device may determine the priority of the first data according to the type of the first data, and notify the second terminal device of the priority of the first data, so that the first terminal device
  • the two terminal devices may determine a candidate resource for sending the second data from the candidate resources based on the type and/or priority of the first data, so as to try to solve the problem of resource conflict.
  • the methods provided by the embodiments of the present application are respectively introduced from the perspective of interaction between the first terminal device and the second terminal device.
  • the first terminal device and the second terminal device may include a hardware structure and/or a software module, in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a hardware structure a hardware structure plus a software module.
  • Whether a certain function of the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.
  • FIG. 7 is a schematic block diagram of a communication device 700 according to an embodiment of the present application.
  • the communication device 700 can execute the behaviors and functions of the first terminal device in the foregoing method embodiments, and in order to avoid repetition, details are not described herein again.
  • the communication device 700 may be a first terminal device or a chip applied in the first terminal device.
  • the communication device 700 includes a processing unit 710 and a transceiving unit 720, wherein the processing unit 710 is configured to determine the priority of the first data to be sent according to the type of data, the first data being the first type of data or the second type of data ;
  • the transceiver unit 720 is used to send first information, and the first information is used to indicate the priority of the first data.
  • the processing unit 710 is further configured to obtain first configuration information, and the first configuration information is used to configure the priority of the second type of data.
  • the processing unit 710 is further configured to obtain second configuration information, and the second configuration information is used to indicate a transmission parameter associated with the priority of the first data, where the transmission parameter includes one of the following parameters Or a combination of multiple:
  • the channel occupancy ratio The channel occupancy ratio, the size of the resource occupied by the first data, the transmission power of the first data, the number of retransmissions of the first data, and the pattern of the reference signal used by the first data.
  • the first information also indicates the type of the first data.
  • the first information indicates the type of the first data and the priority of the first data through the first indication information
  • the first indication information is carried in the first field and the second field of the first information, the first field is used to indicate the type of the first data, and the second field is used to indicate the priority of the second data; or,
  • the first indication information is carried in the first field of the first message, some of the bits in the first field are used to indicate the type of the first data, and the bits in the first field except some of the bits are used to indicate the priority of the first data ;or,
  • the first indication information is carried in the first field of the first message.
  • the value of the first field includes the first value range and the second value range. When the value of the first field is in the first value range, the first field is used for Indicate the priority of the first type of data, when the value of the first field is in the second value range, the first field is used to indicate the priority of the second type of data; or,
  • the first information indicates the priority of the first data
  • the second information used for unicast or multicast indicates the type of the first message.
  • the first indication information is used to indicate the type of the first data
  • the first indication information is the CRC mask of the first control channel and/or the sequence parameter of the demodulation signal used by the first terminal device
  • the first A control channel is a channel used to indicate the first information.
  • the first information further includes information indicating resource reservation and/or resource preemption of the first terminal device.
  • FIG. 8 is a schematic block diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 can execute the behavior function of the second terminal device in the foregoing method embodiment, and in order to avoid repetition, it will not be described in detail here.
  • the communication device 800 may be a second terminal device or a chip applied in the second terminal device.
  • the communication device 800 includes: a processing unit 810 and a transceiving unit 820.
  • the transceiving unit 820 is used to receive first information and first data from a first terminal device.
  • the first information is used to indicate the type of the first data. It is the first type of data or the second type of data; the processing unit 810 is configured to determine a candidate resource for sending the second data according to the type of the first data.
  • processing unit 810 is specifically used to:
  • the signal quality threshold of the first resource is greater than the first threshold, and the first threshold is determined according to the type of the first data
  • the first resource is excluded from the candidate resource set, the remaining resources are obtained, and the resource for sending the second data is determined from the remaining resources.
  • processing unit 810 is specifically used to:
  • the resource for sending the second data is determined according to the type of the first data and the priority of the first data and the type of the second data.
  • the first data and the second data are both data of the second type, the priority of the first data is higher than the priority of the second data, and the processing unit 810 determines a candidate for sending the second data
  • the resource does not include the second resource; or,
  • the priority of the first data is higher than or equal to the priority of the second data, and the processing unit 810 determines that the candidate resource for sending the second data includes the second resource.
  • the first data is data of the first type and the second data is data of the second type, or the first data is data of the second type, and the second data is data of the first type;
  • the processing unit 810 determines that the priority of the first data is lower than the priority of the second data, and determines that the candidate resource for sending the second data does not include the second resource; or,
  • the processing unit 810 determines that the priority of the first data is higher than or equal to the priority of the second data, and determines that the candidate resource for sending the second data includes the second resource.
  • the priority of the second data is higher than the priority of the first data, and the detected signal quality of the first data is lower than or equal to the second threshold, and the processing unit 810 determines that it is used to send the second data.
  • the candidate resource of the data includes the second resource.
  • the processing unit 810 is further configured to determine a candidate resource for sending the second data according to the detected signal quality of the first data and the signal quality threshold corresponding to the type of the first data.
  • FIG. 9 is a schematic block diagram of a communication device 900 according to an embodiment of the present application.
  • the communication device 900 can execute each step executed by the terminal device in the foregoing method embodiment, and may also be used to execute each step executed by the network device in the foregoing method embodiment. In order to avoid repetition, it will not be described in detail here.
  • the communication device 900 may be a terminal device or a chip applied to the terminal device.
  • the communication device 900 includes:
  • the memory 910 is used to store programs
  • the communication interface 920 is used to communicate with other devices
  • the processor 930 is configured to execute the program in the memory 910. When the program is executed, the processor 930 is configured to determine the priority of the first data to be sent according to the type of data.
  • the first data is the first type of data or the first data. Two types of data, and the first information is sent through the communication interface 920, and the first information is used to indicate the priority of the first data.
  • the processor 930 is configured to receive first information and first data from the first terminal device through the communication interface 920, the first information is used to indicate the type of the first data, and the first data is the first type of data or the second data.
  • the type of data, and the candidate resource for sending the second data is determined according to the type of the first data.
  • the communication device 900 shown in FIG. 9 may be a chip or a circuit.
  • a chip or circuit can be installed in the terminal device.
  • the aforementioned communication interface 920 may also be a transceiver.
  • the transceiver includes a receiver and a transmitter.
  • the communication device 900 may also include a bus system.
  • the processor 930, the memory 910, the receiver and the transmitter are connected by a bus system, and the processor 930 is used to execute the instructions stored in the memory 910 to control the receiver to receive signals and control the transmitter to send signals to complete the communication of this application.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the memory 910 may be integrated in the processor 930, or may be provided separately from the processor 930.
  • the functions of the receiver and transmitter may be implemented by a transceiver circuit or a dedicated transceiver chip.
  • the processor 930 may be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.
  • the specific connection medium between the aforementioned communication interface 920, the processor 930, and the memory 910 is not limited in the embodiment of the present application.
  • the memory 910, the processor 930, and the communication interface 920 are connected by a bus in FIG. 9.
  • the bus is represented by a thick line in FIG. It is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of presentation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • the processor 930 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which can implement Or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 910 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory). For example, random-access memory (RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.
  • the memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the communication device in the foregoing embodiment may be a terminal device or a circuit, and may also be a chip applied to a terminal device or other combination devices or components having the functions of the foregoing terminal device.
  • the transceiver unit may be a transceiver, which may include an antenna and a radio frequency circuit, etc.
  • the processing module may be a processor, such as a central processing unit (CPU).
  • the transceiver unit may be a radio frequency unit
  • the processing module may be a processor.
  • the transceiver unit may be an input/output interface of the chip system
  • the processing module may be a processor of the chip system.
  • FIG. 10 shows a simplified schematic diagram of a possible design structure of the terminal device involved in the foregoing embodiment.
  • the terminal device includes a transmitter 1001, a receiver 1002, a controller/processor 1003, a memory 1004, and a modem processor 1005.
  • the transmitter 1001 is used to transmit an uplink signal, and the uplink signal is transmitted to the network device described in the above embodiment via an antenna.
  • the antenna receives the downlink signal (DCI) transmitted by the network device in the above embodiment.
  • the receiver 1002 is used to receive a downlink signal (DCI) received from an antenna.
  • the encoder 1006 receives service data and signaling messages to be sent on the uplink, and processes the service data and signaling messages.
  • the modulator 1007 further processes (e.g., symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 1009 processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder 1008 processes (e.g., decodes) the symbol estimation and provides decoded data and signaling messages sent to the terminal device.
  • the encoder 1006, the modulator 1007, the demodulator 1009, and the decoder 1008 can be implemented by a synthesized modem processor 1005. These units are processed according to the wireless access technology adopted by the wireless access network.
  • the controller/processor 1003 controls and manages the actions of the terminal device, and is used to execute the processing performed by the terminal device in the above-mentioned embodiment. For example, it is used to control the terminal device to determine the priority of the first data to be sent according to the type of data, where the first data is data of the first type or the data of the second type, and send the first information, the first information It is used to indicate the priority of the first data and/or other processes of the technology described in this application. As an example, the controller/processor 1003 is used to support the terminal device to execute the process S61 and/or S63 in FIG. 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de communication. Le procédé peut être appliqué à l'Internet des véhicules, tel que V2X, LTE-V et V2V, ou peut être utilisé dans les domaines de la conduite intelligente, des véhicules connectés intelligents, etc. Le procédé consiste à : déterminer, selon le type de données, la priorité de premières données à envoyer, les premières données étant d'un premier type de données ou d'un second type de données ; et envoyer des premières informations, les premières informations étant utilisées pour indiquer la priorité des premières données. Au moyen du procédé, un second dispositif de terminal peut déterminer, à partir de ressources candidates, sur la base du type et/ou de la priorité des premières données, des ressources candidates pour envoyer des secondes données, de façon à résoudre autant que possible le problème de conflits de ressources, et à garantir la fiabilité de la transmission de service.
PCT/CN2019/109784 2019-10-01 2019-10-01 Procédé et dispositif de communication WO2021062855A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/109784 WO2021062855A1 (fr) 2019-10-01 2019-10-01 Procédé et dispositif de communication
CN201980100823.2A CN114424655A (zh) 2019-10-01 2019-10-01 一种通信方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/109784 WO2021062855A1 (fr) 2019-10-01 2019-10-01 Procédé et dispositif de communication

Publications (1)

Publication Number Publication Date
WO2021062855A1 true WO2021062855A1 (fr) 2021-04-08

Family

ID=75337713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/109784 WO2021062855A1 (fr) 2019-10-01 2019-10-01 Procédé et dispositif de communication

Country Status (2)

Country Link
CN (1) CN114424655A (fr)
WO (1) WO2021062855A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114760375A (zh) * 2022-03-28 2022-07-15 中国第一汽车股份有限公司 多屏车载系统用数据发送方法、装置、传输方法及车辆
CN115696257A (zh) * 2021-07-28 2023-02-03 大唐移动通信设备有限公司 一种信息处理方法、装置、终端设备及网络设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3242449A1 (fr) * 2015-01-27 2017-11-08 Huawei Technologies Co., Ltd. Procédé et appareil d'attribution de ressources basés sur v2v
CN110199533A (zh) * 2016-12-23 2019-09-03 Lg电子株式会社 用于在无线通信系统中执行v2x通信的方法及其设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3242449A1 (fr) * 2015-01-27 2017-11-08 Huawei Technologies Co., Ltd. Procédé et appareil d'attribution de ressources basés sur v2v
CN110199533A (zh) * 2016-12-23 2019-09-03 Lg电子株式会社 用于在无线通信系统中执行v2x通信的方法及其设备

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: "Summary of In-device Coexistence Aspects in NR-V2X (AI 7.2.4.4)", 3GPP DRAFT; R1-1909792_SUMMARY_NR_V2X-AI7.2.4.4-COEXISTENCE, vol. RAN WG1, 3 September 2019 (2019-09-03), Prague, Czech Republic, pages 1 - 7, XP051766384 *
VIVO: "Discussion on mode 2 resource allocation mechanism", 3GPP DRAFT; R1-1906139 DISCUSSION ON MODE 2 RESOURCE ALLOCATION MECHANISM_FINAL, vol. RAN WG1, 4 May 2019 (2019-05-04), Reno, USA, pages 1 - 13, XP051708180 *
VIVO: "Discussion on resource allocation mechanism for NR V2X", 3GPP DRAFT; R1-1903337 DISCUSSION ON SIDELINK RESOURCE ALLOCATION MECHANISM, vol. RAN WG1, 22 February 2019 (2019-02-22), Athens, Greece, pages 1 - 13, XP051601014 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115696257A (zh) * 2021-07-28 2023-02-03 大唐移动通信设备有限公司 一种信息处理方法、装置、终端设备及网络设备
CN114760375A (zh) * 2022-03-28 2022-07-15 中国第一汽车股份有限公司 多屏车载系统用数据发送方法、装置、传输方法及车辆
CN114760375B (zh) * 2022-03-28 2023-12-01 中国第一汽车股份有限公司 多屏车载系统用数据发送方法、装置、传输方法及车辆

Also Published As

Publication number Publication date
CN114424655A (zh) 2022-04-29

Similar Documents

Publication Publication Date Title
US11503450B2 (en) Device discovery using sidelink discovery messages
WO2020143732A1 (fr) Procédé de transmission de canal de rétroaction, procédé de réception de canal de rétroaction et appareil
KR102598362B1 (ko) 신호 전송 방법, 우선순위 구성 방법 및 장치
WO2019028905A1 (fr) Systèmes et procédés permettant l'adaptation de paramètres dans des communications de liaison latérale
WO2021027575A1 (fr) Procédé et appareil de communication
WO2020238428A1 (fr) Procédé et dispositif de communication
WO2021031043A1 (fr) Procédé et dispositif de communication
CN112311515B (zh) 一种反馈信息传输方法及装置
WO2021159464A1 (fr) Procédé et dispositif pour envoyer et recevoir des informations
WO2022213828A1 (fr) Procédé et appareil de détermination de ressources
WO2021062855A1 (fr) Procédé et dispositif de communication
CN111526488B (zh) 发送、接收控制信息的方法及装置
WO2022011699A1 (fr) Procédé de communication et dispositif de liaison latérale
WO2021023068A1 (fr) Procédé d'envoi et de réception de données de demandes de planification et appareil de communication
WO2021082004A1 (fr) Procédé et appareil de communication sans fil
WO2021134659A1 (fr) Procédé et dispositif de transmission de relais
US20230389051A1 (en) Methods for inter-ue resource coordination mechanism
WO2021212510A1 (fr) Procédé et dispositif de communication
WO2021088081A1 (fr) Procédé d'émission d'informations de commande, procédé de réception et appareil de communication
WO2021134448A1 (fr) Procédé, dispositif et système de transmission de données en liaison latérale
WO2021088063A1 (fr) Procédé et dispositif de communication
JP2023536200A (ja) ロング物理サイドリンクフィードバックチャネル（ｐｓｆｃｈ）フォーマットによるｐｓｆｃｈレンジ拡張
CN112584430A (zh) 一种通信方法及装置
WO2024061076A1 (fr) Procédé et appareil de communication en liaison latérale
US12028289B2 (en) Physical sidelink feedback channel (PSFCH) range extension with long PSFCH format

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19948028

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19948028

Country of ref document: EP

Kind code of ref document: A1