WO2020103633A1 - Procédé d'envoi et de réception d'informations de commande et dispositif terminal - Google Patents

Procédé d'envoi et de réception d'informations de commande et dispositif terminal

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Publication number
WO2020103633A1
WO2020103633A1 PCT/CN2019/112720 CN2019112720W WO2020103633A1 WO 2020103633 A1 WO2020103633 A1 WO 2020103633A1 CN 2019112720 W CN2019112720 W CN 2019112720W WO 2020103633 A1 WO2020103633 A1 WO 2020103633A1
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WO
WIPO (PCT)
Prior art keywords
resource
terminal device
data
control information
units
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/112720
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English (en)
Chinese (zh)
Inventor
温容慧
黎超
张兴炜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2020103633A1 publication Critical patent/WO2020103633A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the embodiments of the present application relate to a communication system, and particularly to a method and terminal device for sending and receiving control information.
  • V2D Device-to-device
  • V2V vehicle-to-vehicle
  • V2P Vehicle to Pedestrian
  • V2I vehicle to Pedestrian
  • V2I / N Vehicle toto Infrastructure / Network (V2I / N) communication
  • V2X Vehicle toto Infrastructure / Network
  • the fifth generation (5G) mobile communication system and the future mobile communication system define three major types of application scenarios: enhanced mobile broadband (eMBB), high reliability and low latency communication (Ultra Reliable) LowLatencyCommunications (URLLC) and massive machine type communication (massive MachineTypeCommunications, mMTC).
  • eMBB enhanced mobile broadband
  • Ultra Reliable LowLatencyCommunications
  • URLLC massive machine type communication
  • mMTC massive machine type communication
  • Different services have different priorities.
  • the priority of services can be configured by the base station or can be predefined by the communication protocol.
  • the priority of URLLC service is higher than other services, for example, the priority of URLLC service can be high For V2X business.
  • the terminal device has other service data of different priorities in addition to the V2X service, other terminal devices cannot know the processing of the V2X service or other service data by the terminal device, resulting in reduced reliability .
  • the embodiments of the present application provide a control information sending and receiving method and a terminal device, which can improve the reliability of V2X communication.
  • a method for sending control information which includes: a first terminal device sends first control information to a second terminal device, where the first control information is used to indicate a first resource, and the first A resource is used by the first terminal device to send first data to the second terminal device; the first terminal device obtains a second resource, the second resource belongs to the first resource, and the second resource It will not be used for the first terminal device to send the first data or a part of the first data to the second terminal device, or the second resource is used for the first terminal device in the first Sending the first data or a part of the first data at a second power lower than the first power on the second resource, where the first power is the first terminal device dividing the first data in the first resource Sending power of the first data or a part of the first data on resources other than the second resource; the first terminal device sends second control information to the second terminal device, and the second control information Used to indicate the second resource.
  • the first terminal device indicates the second resource that is not used for V2X communication to the second terminal device, and the second terminal device will receive and decode data according to the second resource to avoid the second terminal device from performing non-V2X data. Incorrect reception or decoding, therefore, improves the reliability of V2X communication.
  • the first terminal device sends the first data or the first data to the second terminal device on the third resource Part of the data, the third resource is a resource other than the second resource in the first resource.
  • the first terminal device when the second resource is equal to the first resource, the first terminal device does not send the first data or a part of the first data on the first resource.
  • the first terminal device acquiring the second resource includes: the first terminal device receiving first scheduling information from a network device, where the scheduling information is used to indicate the second resource; or The first terminal device determines the second resource.
  • the first resource includes n time units
  • the second resource is m time units of the n time units
  • the second control information has n bits.
  • the second control information is used to indicate the m time units, the n and m are positive integers, m is less than or equal to n; or the first resource includes p frequency domain units, and the second resource is In q time units of the p time units, the second control information has p bits, and the second control information is used to indicate the q time units, the p and q are positive integers, and q is less than Or equal to p; or the first resource includes r time-frequency units, the second resource is s time-frequency units of the r time-frequency units, and the second control information has p bits, so The second control information is used to indicate the q time units, p and q are positive integers, and q is less than or equal to p.
  • the bit map the second resource can be flexibly indicated.
  • a method for receiving control information which includes: a second terminal device receives first control information from a first terminal device, the first control information is used to indicate a first resource, and the first A resource is used by the first terminal device to send first data to the second terminal device; the second terminal device receives second control information from the first terminal device, and the second control information is used to indicate A second resource, the second resource will not be used for the first terminal device to send the first data or a part of the first data to the second terminal device, or the second resource is used for all
  • the first terminal device transmits the first data or a part of the first data on the second resource at a second power lower than the first power, the first power is that the first terminal device Transmit power of the first data or a part of the first data on resources other than the second resource in the first resource.
  • the first terminal device indicates the second resource that is not used for V2X communication to the second terminal device, and the second terminal device will receive and decode data according to the second resource to avoid the second terminal device from performing non-V2X data Incorrect reception or decoding, therefore, improves the reliability of V2X communication.
  • the second resource is smaller than the first resource, then the second terminal device receives the first data or the first data from the first terminal device on the third resource Part of the data, the third resource is a resource other than the second resource in the first resource.
  • the second terminal device when the second resource is equal to the first resource, the second terminal device does not receive the first data or a part of the first data on the first resource.
  • the second resource is obtained by the first terminal device receiving first scheduling information from a network device, and the scheduling information is used to indicate the second resource; or the second resource Determined by the first terminal device.
  • the first resource includes n time units
  • the second resource is m time units of the n time units
  • the second control information has n bits.
  • the second control information is used to indicate the m time units, the n and m are positive integers, m is less than or equal to n; or the first resource includes p frequency domain units, and the second resource is In q time units of the p time units, the second control information has p bits, and the second control information is used to indicate the q time units, the p and q are positive integers, and q is less than Or equal to p; or the first resource includes r time-frequency units, the second resource is s time-frequency units of the r time-frequency units, and the second control information has p bits, so The second control information is used to indicate the q time units, p and q are positive integers, and q is less than or equal to p.
  • the bit map the second resource can be flexibly indicated.
  • a first terminal device which includes:
  • a sending unit configured to send first control information to a second terminal device, where the first control information is used to indicate a first resource, and the first resource is used by the first terminal device to send to the second terminal device
  • the first data the processing unit is used to obtain a second resource, the second resource belongs to the first resource, and the second resource is not used by the sending unit to send the first resource to the second terminal device A piece of data or a part of the first data, or the second resource is used by the sending unit to send the first data or the first data at a second power lower than the first power on the second resource
  • the first power is a transmission power at which the sending unit sends the first data or a part of the first data on resources other than the second resource in the first resource
  • the first terminal device sends second control information to the second terminal device, where the second control information is used to indicate a second resource.
  • the first terminal device indicates the second resource that is not used for V2X communication to the second terminal device, and the second terminal device will receive and decode data according to the second resource to avoid the second terminal device from performing non-V2X data Incorrect reception or decoding, therefore, improves the reliability of V2X communication.
  • the sending unit sends the first data or the first data to the second terminal device on the third resource
  • the third resource is a resource other than the second resource in the first resource.
  • the second resource is equal to the first resource
  • the sending unit does not send the first data or a part of the first data on the first resource.
  • the processing unit acquiring the second resource includes the processing unit determining the second resource; or the first terminal device further includes a receiving unit, the receiving unit is configured to receive from the network device First scheduling information, the scheduling information is used to indicate the second resource.
  • the first resource includes n time units
  • the second resource is m time units of the n time units
  • the second control information has n bits.
  • the second control information is used to indicate the m time units, the n and m are positive integers, m is less than or equal to n; or the first resource includes p frequency domain units, and the second resource is In q time units of the p time units, the second control information has p bits, and the second control information is used to indicate the q time units, the p and q are positive integers, and q is less than Or equal to p; or the first resource includes r time-frequency units, the second resource is s time-frequency units of the r time-frequency units, and the second control information has p bits, so The second control information is used to indicate the q time units, p and q are positive integers, and q is less than or equal to p.
  • the bit map the second resource can be flexibly indicated.
  • a second terminal device includes: a receiving unit configured to receive first control information from a first terminal device, the first control information used to indicate a first resource, and the first A resource is used by the first terminal device to send first data to the second terminal device; the receiving unit is also used to receive second control information from the first terminal device, and the second control information is used In order to indicate a second resource, the second resource will not be used by the first terminal device to send the first data or a part of the first data to the second terminal device, or the second resource When the first terminal device transmits the first data or a part of the first data on the second resource at a second power lower than the first power, the first power is the first terminal The device transmits the transmission power of the first data or a part of the first data on resources other than the second resource in the first resources.
  • the first terminal device indicates the second resource that is not used for V2X communication to the second terminal device, and the second terminal device will receive and decode data according to the second resource to avoid the second terminal device from performing non-V2X data. Incorrect reception or decoding, therefore, improves the reliability of V2X communication.
  • the second resource is smaller than the first resource, then the receiving unit receives the first data or the first data from the first terminal device on the third resource
  • the third resource is a resource other than the second resource in the first resource.
  • the second resource is equal to the first resource, and the receiving unit does not receive the first data or a part of the first data on the first resource.
  • the second resource is obtained by the first terminal device receiving first scheduling information from a network device, and the scheduling information is used to indicate the second resource; or the second resource Determined by the first terminal device.
  • the first resource includes n time units
  • the second resource is m time units of the n time units
  • the second control information has n bits.
  • the second control information is used to indicate the m time units, the n and m are positive integers, m is less than or equal to n; or the first resource includes p frequency domain units, and the second resource is In q time units of the p time units, the second control information has p bits, and the second control information is used to indicate the q time units, the p and q are positive integers, and q is less than Or equal to p; or the first resource includes r time-frequency units, the second resource is s time-frequency units of the r time-frequency units, and the second control information has p bits, so The second control information is used to indicate the q time units, p and q are positive integers, and q is less than or equal to p.
  • the bit map the second resource can be flexibly indicated.
  • an embodiment of the present application provides a computer-readable storage medium, in which instructions are stored in a computer-readable storage medium, which when executed on a computer, causes the computer to execute the method described in the above aspects.
  • an embodiment of the present application provides a computer program product that stores computer software instructions used by the first terminal device or the second terminal device, where the computer software instructions include a program for executing the solution described in the above aspect program of.
  • an embodiment of the present application provides a chip for performing the method according to the above aspect
  • the chip may include a part having functions of a memory, a processor, a transmitter, a receiver, and / or a transceiver, the memory
  • the instructions, codes and / or data are stored therein to perform the methods involved in the above aspects.
  • an embodiment of the present application provides a system including the first terminal device and the second terminal device of the above aspect.
  • FIG. 1 is a schematic architectural diagram of a system according to an embodiment of the present application.
  • FIG. 2 is a first terminal device according to an embodiment of the present application.
  • FIG. 3 is a second terminal device according to an embodiment of the present application.
  • FIG. 4 is a network device according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a control information transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a control information transmission method according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a resource according to an embodiment of the present application.
  • the first terminal device sends control information to one or more other terminal devices
  • the control information carries resource information of the data sent by the first terminal device
  • the control information carries resource information in addition to the resource information.
  • There are some transmission parameters for sending data such as modulation and coding information, data transmission period, data transmission times and other information.
  • other terminal devices After receiving control information, other terminal devices will receive the data sent by the first terminal device according to the control information.
  • This data may be Information such as the position, speed, intention, etc.
  • the equipment constitutes a terminal equipment group.
  • the first terminal equipment may be a first vehicle
  • multiple Other terminal devices may include, for example, second to fourth terminal devices, and the second to fourth terminal devices belong to the same terminal device group as the first terminal device, so the second to fourth terminal devices may be referred to as terminal devices in the group.
  • the first to fourth terminal devices form a fleet to run multicast V2X communication.
  • the first terminal device may also perform unicast V2X communication with only one of the second terminal device to the fourth terminal device, or the first terminal device may include but is not limited to the second to fourth terminal devices Of the terminal equipment broadcast V2X communication.
  • the second to fourth terminal devices may send an acknowledgement (ACK) response message to the first terminal device if the second, third, or fourth terminal device correctly receives the data.
  • ACK acknowledgement
  • the first terminal device will no longer send the data to the second, third or fourth terminal device, if the second, third or fourth terminal device does not receive the data correctly, it can send the data to the first
  • the terminal device sends a negative acknowledgement (negative acknowledgement, NACK) response message.
  • NACK negative acknowledgement
  • the first terminal device will send the data to the second, third, or fourth terminal device again, then the second, third, or fourth The terminal device can receive the data again, which improves the reliability of multicast or broadcast data transmission.
  • the resources and transmission parameters of the V2X communication between the first terminal device and the second to fourth terminal devices can be allocated by the network device in mode 3V2X communication, and can be independently selected by the first terminal device in mode 4V2X communication.
  • the network device involved in this application is an apparatus deployed in a wireless access network to provide wireless communication functions for first to fourth terminal devices.
  • the network device may be a base station (Base Station, BS), for example, a macro base station, a micro base station, a relay station or an access point, etc., or other forms of equipment, such as a street lamp and a road side unit (RSU).
  • BS Base Station
  • RSU road side unit
  • the names of devices with network device functions may be different.
  • they are network devices or base stations (gNB) in the fifth-generation 5G network.
  • LTE Long Term Evolution
  • eNB evolved Node B
  • Node B Node B
  • RSU Road Side Unit
  • SOC system on chip
  • the first to fourth terminal devices involved in the present application may include various devices with wireless communication functions or units, components, modules, devices, chips, or SOCs in the devices.
  • the devices with wireless communication functions may, for example, It is an in-vehicle device, a wearable device, a computing device, or other devices connected to a wireless modem, a mobile station (MS), a terminal, or a user equipment (UE), etc.
  • FIG. 5 is a control information transmission method, first to fourth terminal devices, network devices, and systems provided by embodiments of the present application.
  • the first terminal device includes a sending unit 21, a processing unit 22, and a receiving unit 23, where the sending unit 21 and the receiving unit 23 may be replaced by a transceiver unit.
  • the second terminal device includes a sending unit 31, a processing unit 32, and a receiving unit 33, where the sending unit 31 and the receiving unit 33 may be replaced by a transceiver unit.
  • the network device includes a sending unit 41, a processing unit 42, and a receiving unit 43. The sending unit 41 and the receiving unit 43 may be replaced by a transceiver unit.
  • the processing unit 22 to the processing unit 42 may be a processor, the transmitting unit 21 to the transmitting unit 41, the receiving unit 23 to the receiving unit 43 It can be a transceiver, the sending unit 21 to the sending unit 41 can be a transmitter, and the receiving unit 23 to the receiving unit 43 can be a receiver.
  • This transceiver, transmitter or receiver can be a radio frequency circuit, when the first to second terminals
  • the device or network device includes a storage unit, the storage unit is used to store computer instructions, the processor is in communication with the memory, and the processor executes the computer instructions stored in the memory to cause the first to second terminal devices or network devices to perform the implementation of FIG. Examples involved.
  • the processor may be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC).
  • the processing unit 22 to the processing unit 42 may be, for example, a processor, and the sending unit 21 to the sending unit 41 may be an output interface, a pin, or a circuit, etc., a receiving unit 23 to the receiving unit 43 may be an input interface, a pin or a circuit, etc.
  • the transceiver unit may be, for example, an input / output interface, a pin or a circuit, etc.
  • the processing unit may execute computer execution instructions stored in the storage unit, so that the chips in the first to second terminal devices or the network devices execute the method involved in FIG. 5.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit in the terminal outside the chip, such as a read-only memory (Read Only Memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (Random Access Memory, RAM), etc.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the steps of the control information sending and receiving method involved in the embodiment of FIG. 5 include:
  • Step 51 The sending unit 21 of the first terminal device sends the first control information to the second terminal device, and the receiving unit 33 of the second terminal device receives the first control information from the first terminal device.
  • the first control information is used to indicate a first resource
  • the first resource is used by the first terminal device to send first data to the second terminal device.
  • the first terminal device may perform unicast communication with the second terminal device. There may also be multiple second terminal devices, and multicast or broadcast communication is performed between the first terminal device and multiple second terminal devices.
  • the first terminal device will repeatedly send its status information to the second terminal device in the form of first data, and the status information may be, for example, the location information and speed of the first terminal device For information, direction information, etc., the first data is sent 4 times in FIG. 6, of course, the number of repetitions of the first data can be other numbers, and the number of repetitions can be configured by the network device and indicated to the first or second through scheduling information For the terminal device, the number of repetitions may also be determined autonomously by the first terminal device and indicated to the second terminal device through control information.
  • the control information and data are frequency division multiplexing (FDM).
  • FDM frequency division multiplexing
  • the control information and data may also be time division multiplexing or time frequency division multiplexing, which is not limited here.
  • the first control information may not only indicate the resource for the first terminal device to send the first data for the first time, but also indicate the first resource for sending the first data for the second time; the second control information may indicate the second terminal device for the second time.
  • the resource for sending the first data may also indicate the resource for sending the first data for the first or third time; the third control information may also indicate the resource for sending the first data for the third time by the first terminal device, and may also indicate the second The resource for sending the first data for the fourth or fourth time; the fourth control information may not only indicate the resource for the first terminal device to send the first data for the fourth time, but also indicate the resource for sending the first data for the third time.
  • the first to fourth control information may be sidelink control information (Sidelink Control Information, SCI).
  • Step 52 The first terminal device obtains the second resource.
  • the second resource is not used for the first terminal device to send the first data or a part of the first data to the second terminal device, or the second resource is used for the first terminal device to Sending the first data or a part of the first data on the second resource at a second power lower than the first power, the first power is the first terminal device in the first resource Transmit power for sending the first data or a part of the first data on resources other than the second resource.
  • the second resource belongs to the first resource, that is, the second resource may be a part of the first resource or may be equal to the first resource.
  • the first resource was originally used by the first terminal device to send the first data to the second terminal device. However, if service data with a higher priority appears, for example, the first terminal device has URLLC service data that needs to be sent, or the first A terminal device needs to send uplink information to the network device, or the first terminal device needs to receive downlink information from the network device, or another terminal sends higher priority service data on the first resource, such as URLLC service data, or the first terminal If resources other than the first resource need to send higher priority services but the transmit power is limited and the first data cannot be sent, the first terminal device needs to preferentially transmit service data with higher priority. The second resource will be used by the first terminal device to transmit higher priority service data.
  • the first terminal device does not send the first data or a part of the first data to the second terminal device on the second resource, but is only used to send service data with a higher priority; or the first terminal device Not only the first data but also the service data with higher priority is sent on the second resource. At this time, the first terminal device will send the first data on the second resource with a power lower than the transmission power of the originally sent first data Or part of the first data.
  • step 52 there are two ways for the first terminal device to obtain the second resource:
  • the first is in Mode 3 (Mode 3), step 52.1, the processing unit 42 of the network device acquires the second resource, that is, the network device schedules the second resource for transmitting the service data of higher priority for the first terminal device .
  • Step 52.2 The sending unit 41 of the network device sends first scheduling information to the first terminal device, and the receiving unit 23 of the first terminal device receives the first scheduling information from the network device, and the first scheduling information is used to indicate the second resource.
  • the second is in Mode 4 (Mode 4), step 52.3.
  • the processing unit 22 of the first terminal device autonomously determines the second resource, that is, the first terminal device learns that higher priority service data needs to be transmitted, and then the first terminal The device schedules the transmission resource, that is, the second resource, for the service data with higher priority.
  • Step 53 The sending unit 21 of the first terminal device sends second control information to the second terminal device, and the receiving unit 33 of the second terminal device receives this second control information from the first terminal device.
  • the second control information is used to indicate the second resource.
  • the second terminal device can learn the second resource used by the first terminal device to transmit the service data with higher priority, which improves the reliability of V2X communication.
  • the second resource and the first resource may have the same frequency domain range, that is, the second resource and the first resource are time division multiplexed (TDM), the first resource includes n time units, and the second resource is the n
  • TDM time division multiplexed
  • the first resource includes n time units
  • the second resource is the n
  • the second control information has n bits as a bit map
  • the second control information is used to indicate the m time units
  • the n and m are positive integers
  • m is less than Or equal to n.
  • the second resource and the first resource may also have the same time domain range, that is, the second resource and the first resource are frequency division multiplexing (FDM), then the first resource includes p frequency domain units, and the second resource is Among q time units of the p time units, the second control information has p bits as a bit map, the second control information is used to indicate the q time units, and p and q are positive Integer, q is less than or equal to p.
  • the second resource may also occupy only a part of the time or frequency domain of the first resource.
  • the first resource includes r time-frequency units
  • the second resource is s time-frequency units of the r time-frequency units.
  • the second control information has p bits as a bit map, the second control information is used to indicate the q time units, the p and q are positive integers, and q is less than or equal to p.
  • the first resource contains 13 symbols whose sequence numbers are 0 to 13
  • the second control information includes a 13-bit bit map
  • the second If the symbols of the resource occupation sequence numbers are 4, 5, and 6, the bit map indicated by the second control information is (00001110000000). Therefore, the first terminal device instructs the second terminal device in the first resource through the second control information. Up to 7 symbols, that is, symbols with sequence numbers 4, 5, and 6 will not be used for the first terminal device to send the first data to the second terminal device, but will be used for the first terminal device to transmit higher priority services Data, for example, URLLC business data.
  • the second control information may also contain only 1-bit indication information used to indicate that the first terminal device will not send the first data on the first resource. For example, when this 1-bit value is 1 or 0, the second control information Indicates that the first terminal device will not send the first data on the first resource. Then, the second terminal device will give up receiving the first data from the first terminal device on the first resource.
  • the second resource is indicated by the second control information, that is, the second resource indicated by the second control information is the second resource in the first resource in the same time domain as the second control information.
  • the second resource may also be indicated by third control information, that is, the second resource may be indicated by subsequent control information.
  • the second terminal device The information sent on the second resource is cached.
  • the second terminal device may not use the second resource indicated by the third control information for the second resource
  • An instruction sent by a terminal device to the first data when the second terminal device merges and decodes the first data received four times, the data received on the second resource is excluded, or the second The first data sent by the second power is combined and decoded.
  • the second control information may also indicate that a part of the resources transmitting the second control information will not be used for the first terminal device to send the second control information to the second terminal device.
  • the second control information may also indicate that a part of the resource transmitting the second control information and a part of the resource transmitting the first data (second resource) will not be used for the first terminal device to send the second to the second terminal device Control information and first data.
  • Step 54 When the second resource is smaller than the first resource, that is, the second resource is included in the first resource, the sending unit 21 of the first terminal device sends the second resource to the second terminal on the third resource The device sends the first data or a part of the first data, the receiving unit 33 of the second terminal device receives the first data or a part of the first data from the first terminal device, the third The resource is a resource other than the second resource in the first resource.
  • the sending unit 21 of the first terminal device sends the first data or a part of the first data to the second terminal device at a second power lower than the first power on the second resource
  • the second terminal The receiving unit 33 of the device receives the first data or a part of the first data from the first terminal device on the second resource
  • the first power is the first terminal device in the first
  • the second terminal device may merge and decode the first data received four times as shown in FIG. 6.
  • step 54 when the second resource is equal to the first resource, that is, when the first resource originally used for the first data transmission will all be used to transmit service data with higher priority, the sending unit 21 of the first terminal device The first data or a part of the first data is not sent to the second terminal device on the first resource or the second resource, and the second terminal device does not start from the first resource or the second resource.
  • the first terminal device receives the first data or a part of the first data.
  • the second terminal device may merge and decode the first data received four times as shown in FIG. 6.
  • the first terminal device indicates the second resource that is not used for V2X communication to the second terminal device, and the second terminal device will receive and decode data according to the second resource to avoid the second terminal device from performing non-V2X data. Incorrect reception or decoding, therefore, improves the reliability of V2X communication.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

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

Abstract

La présente invention concerne un procédé d'envoi d'informations de commande pouvant être appliqué à l'Internet des véhicules, à la conduite intelligente, à la conduite autonome, aux véhicules connectés intelligents, etc. Le procédé comprend les étapes au cours desquelles : un premier dispositif terminal envoie des premières informations de commande à un deuxième dispositif terminal, les premières informations de commande servant à indiquer une première ressource, la première ressource étant utilisée pour que le premier dispositif terminal envoie des premières données au deuxième dispositif terminal ; et le premier dispositif terminal envoie des secondes informations de commande au deuxième dispositif terminal, les secondes informations de commande servant à indiquer une seconde ressource, la seconde ressource étant utilisée pour la transmission de données de service à haute priorité. Le premier dispositif terminal indique la seconde ressource qui n'est pas utilisée pour une communication V2X au deuxième dispositif terminal. Le deuxième dispositif terminal reçoit et décode des données en fonction de la seconde ressource de façon à empêcher le deuxième dispositif terminal de recevoir ou de décoder par erreur des données non V2X. La fiabilité d'une communication V2X s'en trouve accrue.
PCT/CN2019/112720 2018-11-23 2019-10-23 Procédé d'envoi et de réception d'informations de commande et dispositif terminal Ceased WO2020103633A1 (fr)

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