WO2021031912A1 - Procédé, appareil et système de traitement d'une ressource de liaison latérale - Google Patents

Procédé, appareil et système de traitement d'une ressource de liaison latérale Download PDF

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Publication number
WO2021031912A1
WO2021031912A1 PCT/CN2020/108290 CN2020108290W WO2021031912A1 WO 2021031912 A1 WO2021031912 A1 WO 2021031912A1 CN 2020108290 W CN2020108290 W CN 2020108290W WO 2021031912 A1 WO2021031912 A1 WO 2021031912A1
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WIPO (PCT)
Prior art keywords
terminal
priority
uplink resource
confirmation information
data packet
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Application number
PCT/CN2020/108290
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English (en)
Chinese (zh)
Inventor
徐海博
肖潇
魏冬冬
王君
王键
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021031912A1 publication Critical patent/WO2021031912A1/fr

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Classifications

    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1874—Buffer management
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method, device, and system for processing side link resources.
  • the communication interface between terminals may be called a PC5 interface.
  • the PC5 interface is generally used in scenarios where vehicle-to-everything (V2X) or D2D can directly communicate between devices.
  • V2X vehicle-to-everything
  • D2D vehicle-to-everything
  • the TX terminal can transmit sidelink data to the RX terminal through the sidelink (SL).
  • the RX terminal may send HARQ information corresponding to the hybrid automatic repeat request (HARQ) process to the TX terminal.
  • HARQ hybrid automatic repeat request
  • the HARQ information is used to indicate whether the side link data is correctly received by the RX terminal.
  • the TX terminal After the TX terminal receives the HARQ information, it can send the HARQ information to the network device, so that when the network device determines that the side link data is not received correctly according to the HARQ information, the TX terminal is re-allocated for retransmission of the side link Data side link resources. In the case that the network device determines that the side link data is correctly received according to the HARQ information, the network device allocates the side link resources for transmitting other side link data to the TX terminal.
  • the TX terminal may not be able to send the HARQ information to the network device, or the network device may not be able to receive the HARQ information. In this case, how the TX terminal processes the subsequent HARQ process is not described in the prior art.
  • the embodiments of the present application provide a method, device and system for sending side link resources, which are used to process the allocated side link for retransmission of data packets when the first terminal does not send HARQ information to the network device.
  • Link resources which are used to process the allocated side link for retransmission of data packets when the first terminal does not send HARQ information to the network device.
  • an embodiment of the present application provides a method for processing side link resources, including: the first terminal determines that the first side link hybrid automatic repeat request HARQ process confirmation information is not sent to the network device at the first moment .
  • the confirmation information is used to indicate whether the second terminal correctly receives the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource.
  • the first terminal determines the second side uplink resource.
  • the first terminal processes the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes the new data indicating NDI and HARQ process number.
  • the embodiment of the present application provides a method for processing side link resources.
  • the first terminal may determine that no confirmation information is sent to the network device at the first moment, and the confirmation information indicates that the second terminal correctly receives the first data In the case of packets, if the first terminal receives the second side uplink resource again.
  • the HARQ parameter of the second side uplink resource includes an NDI indication.
  • the NDI indication is usually used to indicate retransmission or new transmission.
  • the first terminal can process the second side uplink resource according to the HARQ parameters. Since the first data packet is correctly received by the second terminal, the first terminal does not need to retransmit the first data packet, and unnecessary transmission by the first terminal can be avoided by processing the second side uplink resources. And to avoid unnecessary feedback from the second terminal.
  • the first terminal processes the second side uplink resource according to the HARQ parameter of the second side uplink resource, including: The HARQ parameters of the two-side uplink resource, and the second data packet is transmitted on the second side uplink resource. This is convenient for the first terminal to use the second side uplink resource for new transmission when the first data packet is correctly received.
  • the first terminal processes the second side according to the HARQ parameters of the second side uplink resource
  • the uplink resource includes: the first terminal ignores the second side uplink resource according to the HARQ parameter of the second side uplink resource. This is convenient to avoid retransmission on the second side uplink resource when the first data packet is correctly received.
  • the HARQ parameter further includes the HARQ process number
  • the method provided in this embodiment of the application further includes:
  • the one-side uplink HARQ process is associated with the first variable, and the value of the first variable is the first parameter value or the second parameter value.
  • the first parameter value indicates that the second terminal correctly receives the first data packet
  • the second parameter value indicates that the second terminal does not correctly receive the first data packet.
  • the first terminal ignores the second side uplink resource according to the HARQ parameters of the second side uplink resource, including: indicating retransmission in the NDI, and the HARQ process number is the process number of the first side uplink HARQ process, and When the value of the first variable is the first parameter value, the first terminal ignores the second side uplink resource. If NDI indicates retransmission, and the HARQ process number is the process number of the first side uplink HARQ process, the first terminal can determine that the second side uplink resource is used to retransmit the first data packet, but because the first The data packet has been correctly received by the second terminal, so the first terminal can ignore the second side uplink resource.
  • the first terminal ignores the second side according to the HARQ parameters of the second side uplink resource
  • the uplink resource includes: when the NDI indicates retransmission, the HARQ process number is the process number of the first side uplink HARQ process, and the HARQ buffer of the first side uplink HARQ process is empty, the first The terminal ignores the second side uplink resource.
  • the first terminal can determine that the second side uplink resource is used to retransmit the first data packet, but because the first The HARQ buffer of the side link HARQ process is empty, so the first terminal can ignore the second side link resource.
  • the method provided in this embodiment of the present application further includes: the first terminal determines that the first data packet has been Successfully received by the second terminal, the first terminal clears the HARQ buffer of the first side uplink HARQ process.
  • the first terminal performs the operation on the second side according to the HARQ parameter of the second side uplink resource Transmitting the second data packet on the uplink resource includes: when the NDI indicates a new transmission, the HARQ process number is the process number of the first side uplink HARQ process, and the value of the first variable is the first parameter value , The first terminal transmits the second data packet on the second side uplink resource. In this way, when it is determined that the first data packet has been successfully received, if the second side uplink resource is used for new transmission, the first terminal transmits the second data packet on the second side uplink resource.
  • the first terminal performs the operation on the second side according to the HARQ parameter of the second side uplink resource Transmitting the second data packet on the uplink resource includes: when the NDI indicates the new transmission, the first terminal transmits the second data packet on the second side uplink resource.
  • the first terminal determines that the confirmation information is not sent to the network device at the first moment, including: The time when a terminal determines to send the confirmation information and the time when the first terminal sends the first message are both the first time.
  • the priority of the physical uplink channel carrying confirmation information is lower than the priority of the first message, or the priority of the physical uplink channel carrying confirmation information is lower than the priority of the side link channel carrying the first message
  • the first terminal determines that the confirmation information is not sent to the network device at the first moment.
  • the time when the confirmation information is sent is the same as the time when the first terminal sends the first message, the time when the confirmation information is sent conflicts with the time when the first terminal sends the first message, and the priority of the physical uplink channel that carries the confirmation information is lower than the first message.
  • the priority of a message or the priority of the side link channel carrying the first message so the first terminal may discard the confirmation information that has not been sent to the network device at the first moment.
  • the first message is sent by the first terminal to the network device during random access News.
  • the physical uplink channel is a physical uplink control channel
  • the first message is a side link SL media Access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL-SCH
  • the first terminal carries the first message according to the priority of the physical uplink channel carrying the confirmation information
  • the priority of the side link channel is determined not to send confirmation information to the network device at the first moment, including: the priority of the physical uplink control channel carrying the confirmation information at the first moment is lower than that mapped by the side link shared channel
  • the first terminal determines that the confirmation information is not sent to the network device at the first moment.
  • the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation information The priority is lower than the priority of the side link logical channel with the highest priority among the SL MAC PDUs transmitted on the SL-SCH.
  • the first terminal determines that the priority of the physical uplink control channel that carries the confirmation information is lower than that of the SL MAC.
  • the physical uplink channel is the physical uplink shared channel PUSCH
  • the first message is the side chain The SL media access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL-SCH.
  • the first terminal does not send confirmation information to the network device at the first moment, including: if PUSCH The priority of is lower than the priority of SL-SCH, and the first terminal determines that no confirmation information is sent to the network device at the first moment.
  • the first aspect if the uplink with the highest priority among the MAC PDUs transmitted on the PUSCH The priority of the logical channel is lower than the priority of the side link logical channel with the highest priority among the MAC PDUs transmitted on the SL-SCH, and the first terminal determines that the priority of the PUSCH is lower than the priority of the SL-SCH.
  • the fourteenth possible implementation manner of the first aspect if the side link with the highest priority in the SL MAC PDU corresponding to the confirmation information The priority of the logical channel and the priority of the uplink logical channel with the highest priority among the MAC PDUs transmitted on the PUSCH are lower than the priority of the side link logical channel with the highest priority among the MAC PDUs transmitted on the SL-SCH. Priority, the first terminal determines that the priority of the PUSCH is lower than the priority of the SL-SCH.
  • the method provided in this embodiment of the present application further includes: in the physical uplink carrying the confirmation information When the priority of the channel is higher than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message, the first terminal determines that the Send confirmation messages to network devices at all times.
  • an embodiment of the present application provides a method for processing side link resources, including: the first terminal determines that the first side link hybrid automatic repeat request HARQ process confirmation information is not sent to the network device at the first moment .
  • the confirmation information is used to indicate whether the second terminal correctly receives the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource.
  • the first terminal determines the third side uplink resource for retransmitting the first data packet. The first terminal sends the first data packet to the second terminal through the third side uplink resource.
  • the embodiment of the application provides a method for processing side link resources.
  • the first terminal may determine that the confirmation information is not sent to the network device at the first moment, and the confirmation information indicates that the second terminal has not correctly received the first
  • the first terminal determines the third side link resource for retransmitting the first data packet. Then the first data packet is sent to the second terminal on the third side uplink resource. This can improve the reliability of the side link transmission.
  • the first terminal determines the third side uplink resource for retransmitting the first data packet, including : The first terminal receives the second side uplink resource from the network device, and the second side uplink resource is associated with the first side uplink HARQ process. The first terminal determines that the second side uplink resource is the third side uplink resource.
  • the first terminal sending the first data packet to the second terminal through the third side uplink resource includes: the first terminal sends the first data packet to the second terminal on the second side uplink resource.
  • the first terminal determines the third side link for retransmitting the first data packet
  • the resource includes: the first terminal determines the first side uplink resource as the third side uplink resource.
  • that the first terminal sends the first data packet to the second terminal through the third side uplink resource includes: the first terminal sends the first data packet to the second terminal through the first side uplink resource. In this way, it is convenient for the first terminal to retransmit the first data packet by using the first side uplink resource of the previous data packet.
  • the first terminal sends the first data to the second terminal through the third side uplink resource
  • the packet includes: the first terminal uses the first side uplink resource to send the first data packet to the second terminal at the second time, and the second time is obtained from the first time and a preset offset value.
  • the method provided in this embodiment of the present application further includes: the first terminal receives an instruction from the network device Information, the indication information is used to instruct the first terminal to determine the third side uplink resource in the first manner or the second manner.
  • the first way is: the first terminal determines the second side uplink resource reallocated by the network device for the first terminal as the third side uplink resource.
  • the second way is: the first terminal determines the first side uplink resource as the third side uplink resource.
  • this application provides a communication device that can implement the first aspect or any possible implementation of the first aspect, and therefore can also implement the first aspect or any possible implementation of the first aspect
  • the communication device may be a first terminal, or a device that can support the first terminal to implement the first aspect or any possible implementation manner of the first aspect, such as a chip applied to the first terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a communication unit for sending and receiving information.
  • the processing unit is configured to determine that the communication unit has not performed an action of sending confirmation information of the first side uplink HARQ process to the network device at the first moment.
  • the confirmation information is used to indicate whether the second terminal correctly receives the first data packet of the first side uplink HARQ process sent by the communication device to the second terminal on the first side uplink resource.
  • the processing unit is also used to determine the second side uplink resource.
  • the processing unit is further configured to process the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes a new data indication.
  • the processing unit is configured to process the second side uplink resource according to the HARQ parameter of the second side uplink resource: The HARQ parameters of the two-side uplink resource, and the second data packet is transmitted on the second side uplink resource.
  • the processing unit is configured to process the second aspect according to the HARQ parameter of the second side uplink resource
  • the two-side uplink resource is used to ignore the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter also includes the HARQ process number, and the first side uplink HARQ process is associated with the first Variable, the value of the first variable is the first parameter value or the second parameter value.
  • the first parameter value indicates that the second terminal correctly receives the first data packet, and the second parameter value indicates that the second terminal does not correctly receive the first data packet.
  • the processing unit is specifically configured to ignore the second side uplink resource.
  • the processing unit is further configured to determine that the first data packet has been successfully received by the second terminal, Clear the HARQ buffer of the first side uplink HARQ process.
  • the processing unit is configured to perform data processing in accordance with the HARQ parameter of the second side uplink resource.
  • the second data packet transmitted on the two-side uplink resource is used to indicate a new transmission in the NDI
  • the HARQ process number is the process number of the first side uplink HARQ process
  • the value of the first variable is the first parameter value In the case of transmitting the second data packet on the second side uplink resource.
  • the processing unit is configured to perform data processing according to the HARQ parameter of the second side uplink resource
  • the transmission of the second data packet on the two-side uplink resource is used to transmit the second data packet on the second side uplink resource when the NDI indicates a new transmission.
  • the processing unit is configured to determine that the communication unit has not performed sending to the network device at the first moment.
  • the action of confirming information is specifically: determining that the time when the confirmation information is sent and the time when the first terminal sends the first message are both the first time. In the case where the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the side link channel carrying the first message, It is determined that the communication unit has not performed the action of sending confirmation information to the network device at the first moment.
  • the first message is a message sent by the communication unit to the network device during the random access process .
  • the physical uplink channel is a physical uplink control channel
  • the first message is a side link SL Media access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL-SCH
  • the processing unit is used to carry the confirmation information according to the priority of the physical uplink channel and the bearer
  • the priority of the side link channel of the first message it is determined that the communication unit did not send confirmation information to the network device at the first moment: the priority of the physical uplink control channel used to carry the confirmation information at the first moment is lower than that of the side link
  • the communication unit has not sent confirmation information to the network device at the first moment.
  • the side link logic with the highest priority in the SL MAC PDU corresponding to the confirmation information The priority of the channel is lower than the priority of the side link logical channel with the highest priority among the SL MAC PDUs transmitted on the SL-SCH, and the processing unit is used to determine that the priority of the physical uplink control channel carrying confirmation information is lower than The priority of the PSSCH mapped to the SL-SCH carrying the SL MAC PDU.
  • the physical uplink channel is the physical uplink shared channel PUSCH
  • the first message is the side chain
  • the side link channel carrying the first message is the side link shared channel SL-SCH.
  • the processing unit is configured to determine, according to the priority of the uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, that the communication unit does not send confirmation information to the network device at the first moment, if the PUSCH The priority is lower than the priority of the SL-SCH, and it is determined that the communication unit has not sent confirmation information to the network device at the first moment.
  • the processing unit is used to determine that the priority of the PUSCH is lower than the priority of the SL-SCH level.
  • the processing unit is used to determine that the priority of PUSCH is lower than the priority of SL-SCH.
  • the processing unit is further configured to set the priority of the physical uplink channel carrying the confirmation information When the priority is higher than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message, the communication unit sends to the network device at the first moment Confirm the information.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a first terminal or a chip in the first terminal.
  • the communication unit may be a transceiver or include one or more modules with a function of sending and receiving information
  • the processing unit may be a processor or include one or more modules with processing capabilities.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the first aspect or any one of the possible implementation manners of the first aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface may be an input/output interface, pin or circuit, etc.
  • the processing unit executes the computer program code stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the first aspect or any one of the possible implementation manners of the first aspect, the
  • the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first terminal located outside the chip (for example, a read-only memory, a random access memory, etc.).
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • this application provides a communication device that can implement the first aspect or any possible implementation of the first aspect, and therefore can also implement the second or any possible implementation of the second aspect
  • the beneficial effects in may be a first terminal, or a device that can support the first terminal to implement the first aspect or any possible implementation manner of the first aspect, such as a chip applied to the first terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a processing unit, configured to determine that the first side uplink hybrid automatic repeat request HARQ process confirmation information is not sent to the network device at the first moment.
  • the confirmation information is used to indicate whether the second terminal correctly receives the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource.
  • the processing unit is further configured to determine the third side uplink resource used to retransmit the first data packet.
  • the communication unit is configured to send the first data packet to the second terminal through the third side uplink resource.
  • the communication unit is further configured to receive the second side uplink resource from the network device, and the second side uplink resource is connected to the first Side link HARQ process association.
  • the processing unit is further configured to determine the third side uplink resource used to retransmit the first data packet as: used to determine that the second side uplink resource is the third side uplink resource.
  • the communication unit for sending the first data packet to the second terminal through the third side uplink resource is: for sending the first data packet to the second terminal on the second side uplink resource.
  • the processing unit is further configured to determine the third side used to retransmit the first data packet
  • the uplink resource is: the first side uplink resource is determined as the third side uplink resource.
  • the communication unit for sending the first data packet to the second terminal through the third side uplink resource is: for sending the first data packet to the second terminal through the first side uplink resource.
  • the communication unit is configured to send the second terminal to the second terminal through the third side uplink resource.
  • a data packet is used to send the first data packet to the second terminal by using the first side uplink resource at the second time, and the second time is obtained from the first time and the preset offset value.
  • the communication unit is further configured to receive instruction information from a network device, and the instruction information is used for Instruct the first terminal to use the first method or the second method to determine the third side uplink resource.
  • the first way is: the first terminal determines the second side uplink resource reallocated by the network device for the first terminal as the third side uplink resource.
  • the second way is: the first terminal determines the first side uplink resource as the third side uplink resource. Or the first terminal autonomously selects the third side link resource from the pre-configured side link resource pool.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a first terminal or a chip in the first terminal.
  • the communication unit may be a transceiver.
  • the processing unit may be a processor.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the second aspect or any one of the possible implementation manners of the second aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface may be an input/output interface, pin or circuit, etc.
  • the processing unit executes the computer program code stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the second aspect or any one of the possible implementations of the second aspect
  • the The storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first terminal located outside the chip (for example, a read-only memory, a random access memory, etc.).
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • an embodiment of the present application provides a method for processing side-link resources, including: a first terminal sends confirmation information of a first side-link hybrid automatic repeat request HARQ process to a network device at a first moment.
  • the confirmation information is used to instruct the second terminal to correctly receive the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource. If the first terminal receives the second side uplink resource from the network device again.
  • the confirmation information indicates that the second terminal correctly receives the first data packet, the first terminal processes the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes the new data indicating NDI.
  • the solution of the fifth aspect is applicable to a situation where the first terminal sends confirmation information of the first side uplink hybrid automatic repeat request HARQ process to the network device, but the network device does not receive the confirmation information.
  • the first terminal processes the second side uplink resource according to the HARQ parameter of the second side uplink resource, including: The HARQ parameters of the two-side uplink resource, and the second data packet is transmitted on the second side uplink resource.
  • the first terminal processes the second side according to the HARQ parameters of the second side uplink resource
  • the uplink resource includes: the first terminal ignores the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter further includes the HARQ process number
  • the method provided in the embodiment of the present application further includes:
  • the one-side uplink HARQ process is associated with the first variable, and the value of the first variable is the first parameter value or the second parameter value.
  • the first parameter value indicates that the second terminal correctly receives the first data packet
  • the second parameter value indicates that the second terminal does not correctly receive the first data packet.
  • the first terminal ignores the second side uplink resource according to the HARQ parameters of the second side uplink resource, including: indicating retransmission in the NDI, and the HARQ process number is the process number of the first side uplink HARQ process, and When the value of the first variable is the first parameter value, the first terminal ignores the second side uplink resource.
  • the first terminal ignores the second side according to the HARQ parameter of the second side uplink resource
  • the uplink resource includes: when the NDI indicates retransmission, the HARQ process number is the process number of the first side uplink HARQ process, and the HARQ buffer of the first side uplink HARQ process is empty, the first The terminal ignores the second side uplink resource.
  • the method provided in this embodiment of the present application further includes: the first terminal determines that the first data packet has been Successfully received by the second terminal, the first terminal clears the HARQ buffer of the first side uplink HARQ process.
  • the first terminal performs the operation on the second side according to the HARQ parameter of the second side uplink resource Transmitting the second data packet on the uplink resource includes: when the NDI indicates a new transmission, the HARQ process number is the process number of the first side uplink HARQ process, and the value of the first variable is the first parameter value , The first terminal transmits the second data packet on the second side uplink resource.
  • the first terminal performs the operation on the second side according to the HARQ parameter of the second side uplink resource Transmitting the second data packet on the uplink resource includes: when the NDI indicates the new transmission, the first terminal transmits the second data packet on the second side uplink resource.
  • the first terminal has sent confirmation information to the network device at the first moment, including: The time when the terminal determines to send the confirmation information and the time when the first terminal sends the first message are both the first time.
  • the first terminal determines that the confirmation information has been sent to the network device at the first moment.
  • the time when the confirmation information is sent is the same as the time when the first terminal sends the first message, the time when the confirmation information is sent conflicts with the time when the first terminal sends the first message, and the priority of the physical uplink channel carrying the confirmation information is higher than the first message.
  • the priority of a message or the priority of the side link channel carrying the first message so the first terminal may send the confirmation information to the network device first at the first moment.
  • the first message is a message sent by the first terminal to the network device during the random access process .
  • the physical uplink channel is a physical uplink control channel
  • the first message is a side link SL media Access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL-SCH
  • the first terminal carries the first message according to the priority of the physical uplink channel carrying the confirmation information
  • the priority of the side link channel, the confirmation information has been sent to the network device at the first moment, including: the priority of the physical uplink control channel carrying the confirmation information at the first moment is higher than that mapped by the side link shared channel
  • the first terminal has sent confirmation information to the network device at the first moment.
  • the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation information The priority is higher than the priority of the side link logical channel with the highest priority among the SL MAC PDUs transmitted on the SL-SCH.
  • the first terminal determines that the priority of the physical uplink control channel carrying the confirmation information is higher than that of the SL MAC PDU.
  • the priority of the PSSCH mapped by the SL-SCH.
  • the physical uplink channel is the physical uplink shared channel PUSCH
  • the first message is the side link SL media access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL-SCH.
  • the first terminal sends confirmation information to the network device at the first moment according to the priority of the uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, including: if the priority of the PUSCH is higher than the SL -SCH priority, the first terminal sends confirmation information to the network device at the first moment.
  • the first terminal determines that the priority of the PUSCH is higher than the priority of the SL-SCH.
  • the first terminal determines that the priority of the PUSCH is higher than the priority of the SL-SCH.
  • the method provided in this embodiment of the present application further includes: in the physical uplink carrying confirmation information In the case that the priority of the channel is lower than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the side link channel carrying the first message, the first terminal determines that the Send the first message to the network device at all times.
  • an embodiment of the present application provides a method for processing side link resources, including: a first terminal sends confirmation information for a first side link hybrid automatic repeat request HARQ process to a network device at a first moment.
  • the confirmation information is used to indicate that the second terminal did not correctly receive the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource. If the first terminal does not receive the second side link resource from the network device, the first terminal determines to determine the first side link resource as the side link resource used to retransmit the first data packet. The first terminal resends the first data packet to the second terminal through the first side uplink resource.
  • the embodiment of the present application provides a method for processing side link resources.
  • the first terminal can send confirmation information to the network device at the first time when determining that the confirmation information is used to indicate that the second terminal has not correctly received the first data pack.
  • the first terminal may indicate that the network device has not received the confirmation message indicating that the second terminal did not correctly receive the first data packet. Therefore, the first terminal can use The uplink resource on the first side retransmits the first data packet. This can ensure the reliability of the side link transmission.
  • the first terminal resending the first data packet to the second terminal through the first side uplink resource includes: the first terminal sends the first data packet to the second terminal at the second time Using the first side uplink resource to resend the first data packet to the second terminal, the second time is obtained from the first time and the preset offset value.
  • this application provides a communication device that can implement the fifth aspect or any possible implementation manner of the fifth aspect, and therefore can also implement any possible implementation manner of the fifth aspect or the fifth aspect
  • the beneficial effects in may be a first terminal, or a device that can support the first terminal to implement the fifth aspect or the method in any possible implementation manner of the fifth aspect, for example, a chip applied to the first terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a processing unit, configured to determine that the communication unit of the communication device sends confirmation information of the first side uplink hybrid automatic repeat request HARQ process to the network device at the first moment.
  • the confirmation information is used to instruct the second terminal to correctly receive the first data packet of the first side uplink HARQ process sent by the communication unit to the second terminal on the first side uplink resource.
  • the processing unit is configured to: when the communication unit receives the second side uplink resource from the network device, and when the confirmation information indicates that the second terminal correctly receives the first data packet, perform the HARQ according to the second side uplink resource Parameters to process the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes the new data indicating NDI and HARQ process number.
  • the solution of the seventh aspect is applicable to a situation in which the communication unit of the communication device sends the confirmation information of the first side uplink HARQ process to the network device, but the network device does not receive the confirmation information.
  • the processing unit is configured to process the second side uplink resource according to the HARQ parameter of the second side uplink resource, and is: The HARQ parameter of the second side uplink resource, and the second data packet is transmitted on the second side uplink resource.
  • the processing unit is configured to process the second aspect according to the HARQ parameter of the second side uplink resource
  • the two-side uplink resource is used to ignore the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter further includes the HARQ process number, and the first side uplink HARQ process is associated with the first Variable, the value of the first variable is the first parameter value or the second parameter value.
  • the first parameter value indicates that the second terminal correctly receives the first data packet, and the second parameter value indicates that the second terminal does not correctly receive the first data packet.
  • the processing unit is configured to ignore the HARQ parameter of the second side uplink resource.
  • the two side uplink resources are: used when the NDI indicates retransmission, and the HARQ process number is the process number of the first side uplink HARQ process, and the HARQ buffer of the first side uplink HARQ process is empty , Ignore the second side uplink resource.
  • the processing unit is further configured to determine that the first data packet has been successfully received by the second terminal, Clear the HARQ buffer of the first side uplink HARQ process.
  • the processing unit is configured to perform data processing according to the HARQ parameter of the second side uplink resource.
  • the second data packet transmitted on the two-side uplink resource is used to indicate a new transmission in the NDI, and the HARQ process number is the process number of the first side uplink HARQ process, and the value of the first variable is the first parameter value In the case of transmitting the second data packet on the second side uplink resource.
  • the communication unit is configured to perform data processing according to the HARQ parameter of the second side uplink resource.
  • the transmission of the second data packet on the two-side uplink resource is used to transmit the second data packet on the second side uplink resource when the NDI indicates a new transmission.
  • the processing unit is configured to determine the time when the confirmation information is sent and the time when the device sends the first message All moments are the first moment. In the case where the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message, The processing unit is further configured to determine that the device sends confirmation information to the network device at the first moment.
  • the first message is a message sent by the device to the network device during the random access process.
  • the physical uplink channel is the physical uplink control channel
  • the first message is the side link SL media Access control MAC protocol data unit PDU
  • the side link channel that carries the first message is the side link shared channel SL-SCH
  • the processing unit is used to carry the confirmation information according to the priority of the physical uplink channel and the first message.
  • the priority of the side link channel of a message it is determined that the device sends confirmation information to the network device at the first moment as that the priority of the physical uplink control channel used to carry the confirmation information at the first moment is higher than that of the side link
  • the device sends confirmation information to the network device at the first moment.
  • the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation information The priority of is higher than the priority of the side link logical channel with the highest priority in the SL MAC PDU transmitted on the SL-SCH, and the processing unit is used to determine that the priority of the physical uplink control channel carrying the confirmation information is higher than the priority of the bearer The priority of the PSSCH mapped to the SL-SCH of the SL MAC PDU.
  • the physical uplink channel is the physical uplink shared channel PUSCH
  • the first message is the side chain
  • the side link channel carrying the first message is the side link shared channel SL-SCH.
  • the processing unit is configured to determine that the device sends the confirmation information to the network device at the first moment according to the priority of the uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, specifically: if PUSCH The priority of is higher than the priority of SL-SCH, and is used to determine that the device sends confirmation information to the network device at the first moment.
  • the processing unit is used to determine that the priority of the PUSCH is higher than the priority of the SL-SCH level.
  • the processing unit is used to determine that the priority of PUSCH is higher than the priority of SL-SCH.
  • the priority of the physical uplink channel carrying the confirmation information is lower than that of the first message Priority, or in the case where the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the side link channel carrying the first message, the communication unit is configured to determine to send the first message to the network device at the first moment .
  • an embodiment of the present application provides a communication device.
  • the communication device may be a first terminal or a chip in the first terminal.
  • the communication unit may be a transceiver.
  • the processing unit may be a processor.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the first terminal implements the method for processing side uplink resources described in the fifth aspect or any one of the possible implementation manners of the fifth aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface can be an input/output interface, a pin or a circuit.
  • the processing unit executes the computer program code stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the fifth aspect or any one of the possible implementation manners of the fifth aspect, the
  • the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first terminal located outside the chip (for example, a read-only memory, a random access memory, etc.).
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • this application provides a communication device that can implement the sixth aspect or any possible implementation manner of the sixth aspect, and therefore can also implement any possible implementation manner of the sixth aspect or the sixth aspect The beneficial effects in.
  • the communication device may be a first terminal, or a device that can support the first terminal to implement the sixth aspect or any possible implementation manner of the sixth aspect, for example, a chip applied to the first terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a communication unit for sending and receiving information.
  • the processing unit is configured to determine that the communication unit sends confirmation information of the first side uplink HARQ process to the network device at the first moment.
  • the confirmation information is used to indicate that the second terminal did not correctly receive the first data packet of the first side uplink HARQ process sent by the first terminal to the second terminal on the first side uplink resource. If the processing unit determines that the communication unit has not received the second side uplink resource from the network device, then the first side uplink resource is determined as the side uplink resource for retransmitting the first data packet.
  • the communication unit is configured to send the first data packet to the second terminal through the first side uplink resource.
  • the communication unit is configured to send the first data packet to the second terminal through the side link resource, specifically: the communication unit is configured to use the first side link resource at the second time The first data packet is sent to the second terminal, and the second time is obtained from the first time and the preset offset value.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a first terminal or a chip in the first terminal.
  • the communication unit may be a transceiver.
  • the processing unit may be a processor.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the first terminal implements the method for processing side uplink resources described in the sixth aspect or any one of the possible implementation manners of the sixth aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface can be an input/output interface, a pin or a circuit.
  • the processing unit executes the computer program code stored in the storage unit, so that the first terminal implements the method for processing side link resources described in the sixth aspect or any one of the possible implementation manners of the sixth aspect, the
  • the storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first terminal located outside the chip (for example, a read-only memory, a random access memory, etc.).
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When the computer program or instruction is run on a computer, the computer executes the steps as described in the first aspect to the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction runs on a computer, the computer executes the operations as described in the second aspect to the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction runs on a computer, the computer executes the operations as described in the fifth aspect to The method for processing side link resources described in any one of the possible implementations of the fifth aspect.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When the computer program or instruction is run on a computer, the computer can execute aspects such as the sixth aspect to The method for processing side link resources described in any one of the possible implementations of the sixth aspect.
  • the embodiments of the present application provide a computer program product including instructions.
  • the instructions When the instructions are run on a computer, the computer executes a process described in the first aspect or various possible implementations of the first aspect. Sidelink resource method.
  • this application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the second aspect or a processing side described in the various possible implementations of the second aspect Link resource method.
  • the embodiments of the present application provide a computer program product including instructions.
  • the instructions When the instructions are executed on a computer, the computer executes a process described in the fifth aspect or various possible implementations of the fifth aspect. Sidelink resource method.
  • the present application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the processing side described in the sixth aspect or various possible implementations of the sixth aspect Link resource method.
  • an embodiment of the present application provides a communication system, which includes: one or more of the communication devices described in the third aspect, and a network device.
  • the communication system may further include: a second terminal.
  • embodiments of the present application provide a communication system, which includes: one or more of the communication devices described in the fourth aspect, and network equipment.
  • the communication system may further include: a second terminal.
  • an embodiment of the present application provides a communication system, which includes: one or more communication devices described in the seventh aspect, and a network device.
  • the communication system may further include: a second terminal.
  • an embodiment of the present application provides a communication system, which includes: one or more communication devices described in the eighth aspect, and a network device.
  • the communication system may further include: a second terminal.
  • an embodiment of the present application provides a communication device that includes a processor and a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the implementation is as in the first aspect Or the methods for processing side link resources described in the various possible implementations of the first aspect.
  • an embodiment of the present application provides a communication device that includes a processor and a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the implementation is as in the second aspect Or the methods for processing side link resources described in various possible implementations of the second aspect.
  • an embodiment of the present application provides a communication device that includes a processor and a storage medium.
  • the storage medium stores instructions.
  • the implementation of the fifth aspect is Or the method for processing side link resources described in various possible implementation manners of the fifth aspect.
  • an embodiment of the present application provides a communication device that includes a processor and a storage medium.
  • the storage medium stores instructions.
  • the sixth aspect is implemented. Or the method for processing side link resources described in various possible implementation manners of the sixth aspect.
  • an embodiment of the present application provides a communication device that includes one or more modules for implementing the methods of the first, second, fifth, and sixth aspects described above.
  • One or more modules may correspond to the steps in the methods of the first, second, fifth, and sixth aspects described above.
  • an embodiment of the present application provides a chip including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the first aspect or the first aspect A method for processing side link resources described in various possible implementations.
  • the communication interface is used to communicate with modules other than the chip.
  • an embodiment of the present application provides a chip including a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a computer program or instruction to implement the second aspect or the second aspect A method for processing side link resources described in various possible implementations.
  • the communication interface is used to communicate with other modules outside the chip.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, and the communication interface is coupled to the processor.
  • the processor is used to run a computer program or instruction to implement the fifth aspect or the fifth aspect.
  • the communication interface is used to communicate with modules other than the chip.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the sixth aspect or the sixth aspect A method for processing side link resources described in various possible implementations.
  • the communication interface is used to communicate with other modules outside the chip.
  • the chip provided in the embodiment of the present application further includes a memory for storing computer programs or instructions.
  • any of the above-provided devices or computer storage media or computer program products or chips or communication systems are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding ones provided above The beneficial effects of the corresponding solutions in the method will not be repeated here.
  • FIG. 1 is an architecture diagram of a communication system provided by an embodiment of this application.
  • FIG. 2 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • 3a to 3d are schematic diagrams of feedback confirmation information between the network device and the terminal;
  • 4-9 are schematic flowcharts of a method for sending side uplink resources according to an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect.
  • the first terminal and the first terminal are only used to distinguish different terminals, and the sequence of the first terminal is not limited.
  • words such as “first” and “second” do not limit the quantity and order of execution, and words such as “first” and “second” do not limit the difference.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine to machine
  • future 5G communication systems such as: long-term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) ) System, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, public land mobile network (PLMN) system, device-to-device (device to device, D2D) network system or machine to machine (machine to machine, M2M) network system and future 5G communication systems.
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land
  • S refers to: defined for direct communication between a terminal and a terminal. That is, the terminal and the terminal communicate directly without forwarding through the base station.
  • the sidelink resource refers to the resource used by the terminal 1 to transmit sidelink information with the terminal 2 on the side link.
  • the sidelink information refers to the sidelink data or control information transmitted by any two terminals on the sidelink, which can also be called the first data packet or V2X service.
  • FIG. 1 shows a communication system to which a method for transmitting side link resources provided by an embodiment of the present application is applied.
  • the communication system includes: one or more network devices (such as shown in FIG. 1 The network device 10), one or more terminals (such as the first terminal 20, the second terminal 30, and the third terminal 40 shown in FIG. 1).
  • the terminal is a vehicle as an example.
  • the first terminal 20 communicates with the network device 10, and the first terminal 20 and the second terminal 30, and the second terminal 30 and the third terminal 40 communicate.
  • the second terminal 30 and the third terminal 40 can also communicate with the network device 10.
  • the communication system shown in FIG. 1 may also include a core network.
  • the network device 10 can be connected to the core network.
  • the core network may be a 4G core network (for example, evolved packet core (EPC)) or a 5G core network (5G core, 5GC), or a core network in various future communication systems.
  • EPC evolved packet core
  • 5G core 5G core
  • RSU roadside unit
  • RSU can also provide various types of service information and data network access for each terminal in the system. For example, taking the terminal as a vehicle, for example, RSU can also provide non-stop toll and in-vehicle charging for each terminal in the system. Functions such as entertainment have greatly improved traffic intelligence.
  • the network device 10 may be an evolved Node B (eNB or eNodeB) in a 4G system.
  • the first terminal 20 is a terminal that can perform information transmission with an eNB.
  • the eNB accesses the EPC network through the S1 interface.
  • the network device 10 may be the next generation node B (gNB) in the NR system, and the first terminal 20 is a terminal that can transmit information with the gNB.
  • the gNB is connected to the 5GC through the NG interface.
  • the network device 10 may also be a third generation partnership project (3rd generation partnership project, 3GPP) protocol base station, or may be a non-3GPP protocol base station.
  • 3GPP third generation partnership project
  • first transmission link between the network device 10 and the first terminal 20.
  • the first transmission link may be a Uu link.
  • the second transmission link between the first terminal 20 and the second terminal 30.
  • the second transmission link may be a side link.
  • the Uu link is used to transmit Uu services (information or data) sent by the network device 10 to the first terminal 20.
  • the first terminal 20 and the second terminal 30 can transmit V2X services to each other on the sidelink, which can also be referred to as the first data packet or sidelink information.
  • the first terminal 20 may transmit an uplink (Uplink, UL) Uu service to the network device 10 on the Uu link, and may also receive a downlink (Downlink, DL) Uu service sent by the network device 10 on the Uu link.
  • Uplink, UL uplink
  • Downlink Downlink
  • DL downlink
  • the interface through which the first terminal 20 and the second terminal 30 communicate through direct connection may be the interface 1.
  • the interface 1 can be called a PC5 interface, and uses a dedicated frequency band (such as 5.9 GHz) for the Internet of Vehicles.
  • the interface between the first terminal 20 and the network device 10 may be referred to as interface 2 (for example, Uu interface), and adopts a cellular network frequency band (for example, 1.8 GHz).
  • the PC5 interface is generally used in V2X or D2D scenarios where direct communication between devices is possible.
  • interface 1 and interface 2 are only examples, and the embodiment of the present application does not limit the names of interface 1 and interface 2.
  • Fig. 1 shows a scenario provided by an embodiment of the present application.
  • vehicle X taking the first terminal 20 as the vehicle with the identification X (abbreviated as: vehicle X) as an example, if the vehicle X Deciding to perform an overtaking operation, vehicle X can send the second terminal 30 in front of it (for example, the vehicle identified as Y (abbreviated as vehicle Y)) on the first sidelink resource in the dialog box 50.
  • a data packet (for example, the first data packet may be an overtaking instruction, the current speed of vehicle X (for example, 75km/h)), so that vehicle Y will slow down after receiving X's current speed and overtaking instruction to make X safe overtake.
  • vehicle Y can feed back the information of the dialog box 60 to the vehicle X.
  • vehicle X After vehicle X receives the information of vehicle Y and determines that vehicle Y correctly receives the overtaking instruction and the current speed of vehicle X, it can feed back ACK to the network device 10 as confirmation information, so that the network device 10 can determine the first side uplink resource
  • the overtaking instruction sent to vehicle Y and the current speed of vehicle X have been correctly received by vehicle Y.
  • the vehicle X since the time when the vehicle X feeds back the ACK to the network device 10 may conflict with the random access message sent by the vehicle X, the vehicle X will preferentially send the random access message to the network device 10 and give up feeding back the ACK to the network device 10.
  • FIG. 1 The scenario shown in FIG. 1 is only an example, and other scenarios of communication between terminals are also applicable to the solution of this application.
  • V2X services are transmitted on the sidelink resources on the sidelink
  • Uu services are transmitted on the Uu resources on the Uu link.
  • the first terminal 20 may transmit sidelink data or sidelink information to the second terminal 30 on the sidelink resource.
  • the other is the way in which the first terminal 20 autonomously selects resources in the resource pool, that is, the first terminal 20 autonomously selects sidelink resources from the resource pool configured or pre-configured by the network device 10 through system messages or dedicated signaling to The sidelink data or sidelink information is transmitted to the second terminal 30 on the independently selected sidelink resource.
  • the first terminal 20 or the second terminal 30 is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. It can also be deployed on the water (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, and satellites).
  • the terminal is also called user equipment (UE), mobile station (MS), mobile terminal (mobile terminal, MT), and terminal equipment, etc., which provide users with voice and/or data connectivity. equipment.
  • terminals include handheld devices and vehicle-mounted devices with wireless connection functions.
  • the terminal can be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (MID), wearable device (such as smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electricity meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart Wireless terminals in a smart grid, wireless terminals in transportation safety, wireless terminals in a smart city, or wireless terminals in a smart home, and flying equipment (e.g., smart Robots, hot air balloons, drones, airplanes, etc.
  • MID mobile internet device
  • wearable device such as smart watch, smart bracelet, pedometer, etc.
  • In-vehicle equipment for example, cars
  • the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device.
  • chips deployed in the above devices such as System-On-a-Chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.
  • the terminal may be a vehicle with corresponding communication function, or a vehicle-mounted communication device, or other embedded communication device, or a user-held communication device, including a mobile phone, a tablet computer, and the like.
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • RSU roadside unit
  • V2P Vehicle-to-pedestrian communication
  • V2N vehicle-to-network communication
  • V2X communication where X represents any thing.
  • the above-mentioned communication usually turns the network used by V2X communication into the Internet of Vehicles.
  • unmanned driving unmanned driving
  • autonomous driving ADS
  • driver assistance/ADAS driver assistance/ADAS
  • intelligent driving intelligent driving
  • connected driving intelligent network driving, car sharing.
  • the terminal may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • 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 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.
  • the network device 10 is an entity that cooperates with the first terminal 20 and can be used to transmit or receive signals.
  • it can be an access point (AP) in WLAN, an evolved base station (evolved Node B, eNB, or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device
  • AP access point
  • eNB evolved Node B
  • eNodeB evolved Node B
  • eNodeB evolved Node B
  • eNodeB evolved Node B
  • eNodeB evolved Node B
  • a relay station or access point or a vehicle-mounted device
  • wearable device wearable device
  • the network equipment provides services for the cell
  • the terminal communicates with the network equipment through the transmission resources (for example, time domain resources, or frequency domain resources, or time-frequency resources) used by the cell.
  • the cell can be a cell corresponding to a network device (e.g. a base station).
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell ( Micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • FIG. 2 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • the hardware structure of the first terminal 20, the second terminal 30, and the network device 10 in the embodiment of the present application may refer to the structure shown in FIG. 2.
  • the communication device includes a processor 41, a communication line 44, and at least one transceiver (in FIG. 2 it is only an example that the transceiver 43 is included for illustration).
  • the processor 41 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 44 may include a path to transmit information between the aforementioned components.
  • the transceiver 43 uses any device such as a transceiver for communication with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the communication device may further include a memory 42.
  • the memory 42 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 44. The memory can also be integrated with the processor.
  • the memory 42 is used to store computer-executable instructions for executing the solution of the present application, and the processor 41 controls the execution.
  • the processor 41 is configured to execute computer-executable instructions stored in the memory 42 to implement the policy control method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
  • the processor 41 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device may include multiple processors, such as the processor 41 and the processor 45 in FIG. 2.
  • processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • FIG. 3a on the Uu link, one method to ensure the reliability of data transmission between the terminal and the network device is to perform HARQ retransmission on the data.
  • the basic process of HARQ for uplink data transmission on the Uu link is shown in Figure 3a: 1.
  • the network device 10 sends a physical downlink control channel (PDCCH) to the first terminal 20, and the PDCCH schedules the first terminal 20 Transmit new upstream data.
  • the first terminal 20 sends uplink data to the network device 10. 3. After the network device 10 receives the uplink data, if the network device 10 fails to decode.
  • PDCCH physical downlink control channel
  • the network device 10 sends a PDCCH to the first terminal 20, and the PDCCH is used to schedule the first terminal 20 to retransmit the uplink data that has not been successfully decoded by the network device 10 in the foregoing steps. 4.
  • the first terminal 20 retransmits the uplink data on the retransmission resource after determining the location of the retransmission resource according to the PDCCH.
  • the basic process of HARQ for downlink data transmission on the Uu link 1.
  • the network device 10 sends downlink data to the first terminal 20. 2.
  • the first terminal 20 receives the downlink data, if the decoding fails, the first terminal 20 feeds back a NACK to the network device 10.
  • the network device 10 retransmits the downlink data after receiving the NACK. This allows the first terminal 20 to re-receive downlink data on a new physical downlink shared channel (PDSCH) according to the retransmission instruction.
  • PDSCH physical downlink shared channel
  • the network device 10 performs retransmission of downlink data. 4.
  • the first terminal 20 succeeds in decoding, and then feeds back an ACK to the network device 10.
  • the network device 10 performing the retransmission of downlink data includes: the network device 10 indicates the resource location of the PDSCH through the PDCCH, and the PDSCH carries the retransmitted downlink data.
  • the basic HARQ process of side-link data transmission is shown in FIG. 3c: 1.
  • the first terminal 20 sends side-link data (including new transmission and retransmission of data) to the second terminal 30.
  • the second terminal 30 decodes the side link data. Since in the current LTE system, the first terminal 20 transmits the side uplink data in a broadcast mode, no matter whether the second terminal 30 successfully decodes the side uplink data or not, the second terminal 30 does not send ACK/ to the first terminal 20. NACK feedback. Since the first terminal 20 does not receive the ACK fed back by the second terminal 30, it may mistakenly believe that the second terminal 30 has not successfully decoded it.
  • the subsequent process it may continue to retransmit the side chain to the second terminal 30 as in steps 2 to M.
  • the second terminal 30 since the second terminal 30 has successfully decoded the side uplink data, the second terminal 30 no longer decodes the retransmitted side uplink data. This will cause the first terminal 20 to repeatedly send side-link data, resulting in waste of side-link resources.
  • Sidelink supports unicast, multicast and broadcast transmission.
  • a retransmission mechanism based on HARQ feedback is supported.
  • the HARQ process of side link data transmission is shown in Figure 3d:
  • the network device 10 sends a PDCCH to the first terminal 20 to schedule the new transmission of side link data of the first terminal 20. 2.
  • the first terminal 20 sends side link data to the second terminal 30. 3.
  • the second terminal 30 receives the side link data, if the decoding fails, the second terminal 30 feeds back a NACK to the first terminal 20. 4.
  • the first terminal 20 feeds back a NACK to the network device 10. 5.
  • the network device 10 sends a PDCCH to the first terminal 20, and schedules the first terminal 20 to re-send to the second terminal 30 the side link that the second terminal 30 has not successfully decoded Data, that is, retransmission of side link data. 6.
  • the first terminal 20 performs side-link retransmission.
  • the first terminal 20 may not receive the confirmation information fed back by the second terminal 30. At this time, the first terminal 20 may not be sure whether the second terminal 30 correctly receives the side link data. Furthermore, the first terminal 20 is not sure how to process the side link data subsequently.
  • the first terminal 20 when the first terminal 20 needs to feed back the sidelink data transmission confirmation information ACK/NACK to the network device 10, there may be a time conflict or overlap with other transmissions.
  • the time when the first terminal 20 sends the ACK/NACK to the network device 10 is the same as the time when the first message sent by the first terminal 20 to the network device 10 or the first message sent by the first terminal 20 to the second terminal 30, so It can be called a conflict.
  • the first terminal 20 may abandon sending ACK/NACK to the network device 10, so that the network device 10 will not be able to receive the ACK/NACK from the first terminal 20, so the network device 10 may not know the first terminal 20 Whether the side link data sent to the second terminal 30 is received correctly.
  • the network device 10 does not configure the side link resource for retransmission for the first terminal 20, the side link data that is not received correctly may not be retransmitted. Or if the network device 10 blindly reassigns the side link for retransmission for the first terminal 20 without knowing whether the side link data sent by the first terminal 20 to the second terminal 30 is received correctly Resources, but the side link data is correctly received by the second terminal 30. In this case, how the first terminal 20 handles the side link resources for retransmission is a problem to be solved.
  • the first terminal 20 can determine that the confirmation information is not sent to the network device 10 at the first time 20 and the confirmation information indicates that the second terminal 30 correctly receives the first data packet.
  • a terminal 20 again receives the second side uplink resource used to retransmit the first data packet of the first side uplink HARQ process, and new data retransmission (NDI). Since the NDI indication is usually used to indicate retransmission or new transmission, when this happens, the first terminal 20 can process the second side uplink resource according to the information performed by the first HARQ. Since the first data packet is correctly received by the second terminal 30, the first terminal 20 does not need to retransmit the first data packet on the second side uplink resource. The first terminal ignores the second side uplink resource. Or transmitting other data packets (for example, the second data packet) other than the first data packet can avoid unnecessary transmission by the first terminal 20 and avoid unnecessary feedback by the second terminal 30.
  • NDI new data retransmission
  • the embodiment of the present application provides a method for processing side link resources, and the execution subject of the method is a first communication device.
  • the first communication device may be the first terminal 20 or a chip set in the first terminal 20.
  • the second communication device in this method may be the second terminal 30 or a chip set in the second terminal 30.
  • the first communication device is the first terminal 20 and the second communication device is the second terminal 30 as an example.
  • FIG. 4 shows a method for processing side link resources provided by an embodiment of the present application, and the method includes:
  • Step 401 The first terminal 20 determines that the first side uplink HARQ process confirmation information is not sent to the network device 10 at the first time 20.
  • the confirmation information is used to indicate whether the second terminal 30 correctly receives the first data packet of the first side uplink HARQ process sent by the first terminal 20 to the second terminal 30 on the first side uplink resource.
  • the confirmation information may be HARQ information.
  • the confirmation information can be: NACK or ACK.
  • ACK indicates that the second terminal 30 correctly receives the first data packet.
  • NACK indicates that the second terminal 30 did not correctly receive the first data packet.
  • the first data packet may be a data packet sent by the first terminal 20 to the second terminal 30 on the first side uplink resource through the side uplink.
  • the side link refers to the side link between the first terminal 20 and the second terminal 30.
  • the first side uplink HARQ process is a side link HARQ process used to transmit the first data packet in one or more side link HARQ processes of the first terminal 20.
  • the method provided in the embodiment of the present application further includes: the first terminal 20 sends the first data packet to the second terminal 30 on the first side uplink resource. If the second terminal 30 correctly receives the first data packet, the second terminal 30 sends an ACK to the first terminal 20. If the second terminal 30 does not correctly receive the first data packet, the second terminal 30 sends a NACK to the first terminal 20.
  • the confirmation information of the first side uplink HARQ process indicates: the confirmation information is used to reflect whether the first data packet associated with the first side uplink HARQ process is received correctly.
  • correct reception in the embodiment of the present application can also be replaced by successful reception or successful decoding.
  • incorrect reception may also be replaced by unsuccessful reception or successful decoding.
  • correct reception and incorrect reception are taken as examples.
  • the first side link resource is a side link resource configured by the network device 10 for the first terminal 20 to transmit the first data packet.
  • the first side link resource is the side link resource selected by the first terminal 20 from the side link resource pool for transmitting the first data packet.
  • the first data packet may be a newly transmitted data packet.
  • the newly transmitted data packet is the data packet that the first terminal 20 transmits to the second terminal 30 for the first time (first time).
  • the first data packet is a retransmission data packet.
  • the retransmitted data packet is the data packet that the first terminal 2 transmits to the second terminal 30 for the Mth time.
  • the retransmission data packet is the data packet that the first terminal 20 transmits to the second terminal 30 for the first time.
  • M is an integer greater than or equal to 2, and M is less than or equal to the maximum number of retransmissions of the first terminal 20. Or M is less than or equal to the maximum number of retransmissions of the first side uplink HARQ process.
  • the first moment is the moment when the first terminal 20 sends the confirmation information to the network device 10.
  • the first terminal not sending the confirmation information of the first side uplink HARQ process to the network device can also be understood as: the confirmation information cannot be transmitted, or the first terminal 20 gives up sending the confirmation information to the network device 10.
  • Step 402 The first terminal 20 determines the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes a new data indicator (NDI).
  • the HARQ parameter may also include a process ID (HARQ Process ID).
  • HARQ Process ID HARQ Process ID
  • the second side link resource may be configured by the network device 10 to the first terminal 20. That is, when the first terminal 20 does not send confirmation information to the second terminal 30 at the first moment, and the network device 10 does not receive the confirmation information, the network device 10 configures the second side chain for the first terminal 20 Road resources.
  • the network device 10 sends a PDCCH to the first terminal 20.
  • the PDCCH is used to schedule the first terminal 20 to retransmit the first data packet, and the PDCCH is also used to indicate the location of the second side uplink resource and the second HARQ process ID corresponding to the side link resource.
  • the downlink control information (DCI) carried by the PDCCH is used to schedule the SL grant (Grant), and the NDI and HARQ process ID corresponding to the SL Grant.
  • SL Grant is used to determine the location of the second side uplink resource.
  • the second side link resource may be received by the first terminal 20 at a third time, which is located after the first time.
  • the second side link resource is received by the first terminal 20 when the confirmation information is ACK and the confirmation information is not sent to the network device 10 at the first time 20.
  • Step 403 In the case where the confirmation information indicates that the second terminal 30 correctly receives the first data packet, the first terminal 20 processes the second side uplink resource according to the HARQ parameter.
  • the embodiment of the present application provides a method for processing side link resources.
  • the first terminal may determine that no confirmation information is sent to the network device at the first moment, and the confirmation information indicates that the second terminal correctly receives the first data In the case of packets, if the first terminal receives the second side uplink resource again.
  • the HARQ parameter of the second side uplink resource includes an NDI indication.
  • the NDI indication is usually used to indicate retransmission or new transmission.
  • the first terminal can process the second side uplink resource according to the HARQ parameters. Since the first data packet is correctly received by the second terminal, the first terminal does not need to retransmit the first data packet, and unnecessary transmission by the first terminal can be avoided by processing the second side uplink resources. And to avoid unnecessary feedback from the second terminal.
  • step 401 in the embodiment of the present application can be specifically implemented in the following manner:
  • Step 4011 the first terminal 20 determines that the time when the confirmation information is sent and the time when the first terminal 20 sends the first message are both the first time.
  • the time when the confirmation information is sent is the same as the time when the first terminal 20 sends the first message, that is, the time when the confirmation information is sent and the time when the first terminal 20 sends the first message conflict or overlap in time.
  • the first terminal 20 may compare the priority of the physical uplink channel carrying the confirmation information with the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message.
  • the comparison of levels determines whether the confirmation information is not sent to the network device 10 at the first time 20. For example, it can be achieved through step 4012:
  • Step 4012 when the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the side link channel carrying the first message In this case, the first terminal 20 determines that the confirmation information is not sent to the network device 10 at the first time 20.
  • the time conflict or overlap between the time when the confirmation information is sent and the time when the first terminal 20 sends the first message includes the following content:
  • the first message is a message sent by the first terminal 20 to the network device 10 during the random access process.
  • the first message may be message 1 (message1, Msg1) in the random access process.
  • Message 1 is sent through a physical random access channel (PRACH).
  • the first message may be message 3 (Msg3) in the random access process.
  • Message 3 passes through the physical uplink shared channel (PUSCH).
  • PRACH physical random access channel
  • PUSCH physical uplink shared channel
  • the priority of the physical uplink channel carrying the confirmation information is lower than that of the message 1 or message 3.
  • the priority of the first terminal 20, that is, the first terminal 20 transmits message 1 or message 3 first, and discards the transmission confirmation information. Therefore, the first terminal 20 does not send confirmation information to the network device 10 at the first moment.
  • the physical uplink channel is the physical uplink control channel (PUCCH)
  • the first message is the side link SL medium access control (MAC) protocol data unit (protocol data unit) , PDU)
  • the side link channel carrying the first message is a side link shared channel (sindlink shared channel, SL-SCH). That is, at the first moment, when the first terminal 20 needs to send confirmation information to the network device 10 through the PUCCH, it also needs to send an SL MAC PDU to the second terminal 20 or other terminals on the side link SL.
  • the SL MAC PDU may generally include one or more SL MAC service data units (SDU) from different side link logical channels. The different side link logical channels have different priorities.
  • the first terminal 20 determines that at the first time 20 the first terminal 20 according to the priority of the physical uplink channel carrying the confirmation information and the priority of the side uplink channel carrying the first message Sending confirmation information to the network device 10, including: the priority of the PUCCH carrying the confirmation information at the first moment is lower than the priority of the physical sidelink shared channel (PSSCH) mapped by the SL-SCH Next, the first terminal 20 does not send confirmation information to the network device 10 at the first moment.
  • PSSCH physical sidelink shared channel
  • the first terminal 20 preferentially transmits the SL-SCH/PSSCH and gives up transmitting the PUCCH. Therefore, the first terminal 20 determines that the confirmation information is not sent to the network device 10 at the first time 20.
  • Example 1-2 the SL-SCH/PSSCH is transmitted preferentially, and the PUCCH transmission is abandoned by the physical layer of the first terminal.
  • the priority of the PUCCH carrying the confirmation information and the priority of the PSSCH mapped by the SL-SCH depend on the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation information and the SL- Comparison of the priority of the side link logical channel with the highest priority in the SL MAC PDU to be transmitted by the SCH.
  • the network device 10 may configure the resource for sending the confirmation information on the PUCCH for the first terminal 20 in advance.
  • the SL MAC PDU corresponding to the confirmation information refers to the SL MAC PDU to which the confirmation information is aimed.
  • the priority of the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation message is lower than the priority of the side link logical channel with the highest priority in the SL MAC PDU transmitted on the SL-SCH
  • the first terminal 20 determines that the priority of the uplink physical control channel for transmitting the confirmation information is lower than the priority of the PSSCH mapped to the SL-SCH carrying the SL MAC PDU.
  • the physical uplink channel is a physical uplink shared channel (PUSCH)
  • the first message is to carry SL MAC PDU
  • the side link channel that carries the first message is SL-SCH.
  • the first terminal 20 determines whether to send the confirmation information to the network device 10 at the first time 20 according to the priority of the physical uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message. For example, according to the priority of the physical uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, the first terminal 20 determines that the confirmation information is not sent to the network device 10 at the first time 20.
  • the first terminal 20 determines that at the first time 20 the first terminal 20 according to the priority of the physical uplink channel carrying the confirmation information and the priority of the side uplink channel carrying the first message Send confirmation information to the network device 10, including:
  • the first terminal 20 determines whether to send confirmation information to the network device 10 at the first time 20. For example, if the priority of PUSCH is lower than the priority of SL-SCH, the first terminal 20 determines that no confirmation information is sent to the network device 10 at the first time 20.
  • the PUSCH can generally be used to transmit the MAC PDU sent by the first terminal 20 to the network device 10, when the confirmation information and the MAC PDU transmitted on the PUSCH can be multiplexed with the PUSCH, regardless of the confirmation information to be transmitted on the PUSCH Whether it is ACK or NACK can be determined by comparing the priority of the uplink logical channel with the highest priority in the MAC PDU transmitted on the PUSCH with the priority of the side link logical channel in the MAC PDU transmitted on the SL-SCH. PUSCH priority and SL-SCH priority.
  • the comparison and processing of the priority of the PUSCH and the priority of the SL-SCH in Examples 1-3 are performed by the MAC layer of the first terminal 20.
  • the first terminal determines that the PUSCH priority is lower than the SL-SCH priority.
  • the MAC PDU transmitted on the PUSCH includes MAC SDUs from one or more uplink logical channels, and the priority of the one or more uplink logical channels may be the same or different.
  • the MAC PDU transmitted on the SL-SCH may also include MAC SDUs from one or more side link logical channels, and the priority of the one or more side link logical channels may be the same or different.
  • the uplink logical channel with the highest priority is uplink logical channel 1.
  • the side-link logical channel with the highest priority in the MAC PDU transmitted on the SL-SCH is the side-link logical channel 1. If the priority of the side-link logical channel 1 is higher than the priority of the uplink logical channel 1. , The first terminal 20 determines that the priority of PUSCH is lower than the priority of SL-SCH.
  • the first terminal 20 determines that the priority of the PUSCH is lower than the priority of the SL-SCH .
  • a) indicates the priority of the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation information.
  • b) Represents the priority of the uplink logical channel with the highest priority among the MAC PDUs transmitted on the PUSCH.
  • c) The priority of the side link logical channel with the highest priority among the MAC PDUs transmitted on the SL-SCH. If the priority of a) or the priority of b) is higher than the priority of c), then the first terminal 20 determines that the priority of PUSCH is higher than the priority of SL-SCH/PSSCH, that is, transmits PUCCH, and discards SL-SCH /PSSCH transmission.
  • the first terminal 20 determines that the priority of PUSCH is lower than the priority of SL-SCH/PSSCH, that is, transmitting SL-SCH/PSSCH, And give up PUSCH transmission.
  • Example 1-3-2 the comparison and processing of the priority of the PUSCH and the priority of the SL-SCH are performed by the MAC layer of the first terminal 20.
  • the first terminal 20 sends confirmation information to the network device 10, but the network device 10 does not correctly receive the confirmation information, the first terminal 20 determines that the confirmation information is not sent to the network device 10.
  • the method provided in the embodiment of the present application further includes:
  • the first terminal 20 compares the priority of the physical uplink channel carrying the confirmation information and the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information and the priority of the side link channel of the first message, The first terminal 20 preferentially sends confirmation information to the network device 10 at the first moment.
  • the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is higher than that of the side link channel carrying the first message.
  • the first terminal 20 determines to send the confirmation information to the network device 10 first at the first moment.
  • the first terminal 20 determines that the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the first message can be achieved in the following manner: if the priority of the physical uplink channel carrying the confirmation information is higher than In the case of the priority of message 1 or message 3, the first terminal 20 determines that the priority of the uplink channel carrying the confirmation information is higher than the priority of the first message.
  • the first terminal 20 determines that the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message can be implemented in the following manner: If the PUCCH carrying the confirmation information The priority of is higher than the priority of SL-SCH transmission, and the first terminal 20 determines that the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message.
  • the first terminal 20 determines that the priority of the PUCCH carrying the confirmation information is higher than the priority of SL-SCH transmission.
  • the first terminal 20 determines that the priority of the physical uplink channel that carries the confirmation information is higher than the priority of the sidelink channel that carries the first message can be implemented in the following manner: If the PUSCH has priority The priority is higher than the priority of the SL-SCH, and the first terminal 20 determines that the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message.
  • the first terminal determines that the priority of PUSCH is higher than the priority of SL-SCH.
  • Example 1-3-2 if the priority of a) or the priority of b) is higher than the priority of c), then the first terminal 20 determines that the priority of PUSCH is higher than that of SL-SCH/PSSCH The priority is to transmit PUCCH and give up SL-SCH/PSSCH transmission.
  • step 403 in the embodiment of the present application can be specifically implemented by the following step 4031 or step 4032:
  • Step 4031 The first terminal transmits the second data packet on the second side uplink resource according to the HARQ parameter.
  • the second data packet is different from the first data packet.
  • the second data packet may be a newly transmitted data packet or a retransmitted data packet.
  • the first terminal 20 in the embodiment of the present application may also associate a first variable (for example, defined as: for each side link HARQ process in one or more side link HARQ processes of the first terminal 20) SL_HARQ_Feedback).
  • the first variable associated with any side-link HARQ process is used to reflect whether the data packet of any side-link HARQ process sent by the first terminal 20 is correctly received by the opposite side.
  • each side link HARQ process in the embodiment of the present application has a process number.
  • the association of each side link HARQ process with a first variable means that the process number of each side link HARQ process is associated with a first variable.
  • the method provided in the embodiment of the present application further includes: the first terminal 20 according to the process number carried in the HARQ parameter, in the case that the process number is the process number of the first side uplink HARQ process, the first terminal 20 Determine the first variable associated with the first side uplink HARQ process.
  • the first variable is used to reflect whether the second terminal 30 correctly receives the first data packet.
  • the value of the first variable may be the first parameter value or the second parameter value.
  • the first parameter value indicates that the second terminal 30 correctly receives the first data packet
  • the second parameter value indicates that the second terminal 30 does not correctly receive the first data packet.
  • the first terminal 20 determines that the second terminal 30 correctly receives the first data packet, if the first terminal 20 receives the second side link resource again, the first terminal 20 can pass through the second side link resource.
  • the process number of the HARQ parameter corresponding to the channel resource determines the value of the first variable of the HARQ process corresponding to the second side uplink resource. If the value of the first variable of the HARQ process corresponding to the second side uplink resource is the first parameter value, the first terminal 20 determines that the second side uplink resource may not be used as a resource for retransmitting the first data packet.
  • step 4031 in the embodiment of the present application is: when NDI indicates new transmission and the HARQ process number is the process number of the second side uplink HARQ process, if the first side uplink HARQ process is associated
  • the first terminal 20 transmits the second data packet to the second terminal 30 on the second side uplink resource. That is, the network device 10 instructs the first terminal 20 to transmit the second data packet to the second terminal 30 on the second side uplink resource through the NDI.
  • step 4031 in the embodiment of the present application is: when the NDI indicates new transmission and the HARQ process number is the process number of the HARQ process on the second side link, the first terminal 20 is on the second side.
  • the second data packet is transmitted to the second terminal 30 on the link resource.
  • the second data packet corresponds to the second side uplink HARQ process. That is, if the network device 10 instructs the first terminal 20 to perform a new transmission through the NDI, the first terminal 20 may transmit the second data packet corresponding to the second side uplink HARQ process on the second side uplink resource.
  • the first terminal 20 determines that the HARQ buffer of the first side link HARQ process is empty, and the first terminal 20 can use the second side link resource The second data packet is transmitted on.
  • the first terminal 20 needs to retransmit the first data packet on the second side uplink resource.
  • the first terminal 20 needs to transmit the first data packet on the second side uplink resource.
  • Step 4032 the first terminal ignores (ignore) the second side uplink resource according to the HARQ parameter.
  • the ignoring of the second side link resource by the first terminal in the embodiment of the present application can be understood as: the first terminal does not use the second side link resource to transmit the first data packet.
  • step 4032 in the embodiment of this application can be specifically implemented in the following manner: retransmission is indicated in NDI, and the HARQ process number is the process number of the first side uplink HARQ process , And when the value of the first variable associated with the first side uplink HARQ process is the first parameter value, the first terminal 20 ignores the second side uplink resource.
  • the network device 10 since the network device 10 provides the process number to the first terminal 20 when allocating the second side uplink resource to the first terminal 20, if the HARQ process number included in the HARQ parameter is different from the first side uplink resource
  • the first terminal 20 may determine the parameter value of the first variable associated with the first side uplink HARQ process according to the process number of the first side uplink HARQ process.
  • the method provided in the embodiment of the present application further includes: the first terminal 20 determines the value of the first variable associated with the first side uplink HARQ process according to the confirmation information from the second terminal 30.
  • the first terminal determines that the value of the first variable associated with the first side uplink HARQ process is the first parameter value. If the confirmation information is NACK, the first terminal determines that the value of the first variable associated with the first side uplink HARQ process is the second parameter value.
  • step 4032 in the embodiment of the present application can be specifically implemented in the following manner: retransmission is indicated in NDI, and the HARQ (buffer) buffer of the first side uplink HARQ process is empty, and the first The terminal 20 ignores the second side uplink resource.
  • the method provided in the embodiment of the present application further includes: the first terminal 20 determines that the first data packet of the first side uplink HARQ process has been successfully received by the second terminal 30, and the first terminal 20 first The HARQ buffer of the side link HARQ process is cleared.
  • the above steps 401 to 404 mainly describe the case where the confirmation information is not sent to the network device 10 at the first time 20, and the confirmation information indicates that the second terminal 30 correctly receives the first data packet, if the first terminal 20 When the second side uplink resource is received again, the first terminal 20 processes the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the second terminal 30 may correctly receive the first data packet, that is, the confirmation information is NACK, which means that the first terminal 20 needs to retransmit the first data packet and needs to feed back the NACK at the first moment.
  • the network device 10 determines that the first data packet is not received correctly after receiving the NACK, and can allocate the second side uplink resource for the first terminal 20 to retransmit the first data packet.
  • the first terminal 20 may also process the first data packet through the following embodiments.
  • a method for transmitting side link resources includes:
  • Step 601 The first terminal 20 determines that the first side uplink HARQ process confirmation information is not sent to the network device 10 at the first time 20.
  • the confirmation information is used to indicate whether the second terminal 30 correctly receives the first data packet of the first side uplink HARQ process sent by the first terminal 20 to the second terminal 30 on the first side uplink resource.
  • step 601 For the specific implementation of step 601, reference may be made to the description of step 401, step 4011, and step 4012, which will not be repeated here.
  • Step 602 The first terminal 20 determines a third side uplink resource used to retransmit the first data packet.
  • the third side link resource used to retransmit the first data packet may be obtained by the first terminal 20 from the network device 10. Or, the third side link resource used to retransmit the first data packet may be independently selected by the first terminal 20.
  • Step 603 When the confirmation information indicates that the second terminal 30 did not correctly receive the first data packet, the first terminal 20 sends the first data packet to the second terminal 30 through the third side uplink resource.
  • the first terminal 20 needs to retransmit the third side uplink resource of the first data packet, and then use the third side uplink resource to retransmit the first data packet.
  • the first terminal 20 may send the first data packet to the second terminal 30 on the third side uplink resource through the side uplink between the first terminal 20 and the second terminal 30 after the first time.
  • the embodiment of the present application provides a method for sending side-link resources.
  • the first terminal may determine to retransmit the side-link service when it determines that no confirmation information is sent to the network device at the first moment. And use the side-link resources to resend the side-link service to the second terminal, which is the same as that in the prior art where the first terminal does not send confirmation information to the network device, the first terminal does not Compared with determining how to handle side-link services, the reliability of side-link data transmission can be improved.
  • the method provided in the embodiment of the present application is before step 602, It can also include:
  • Step 604 The first terminal 20 receives the second side link resource from the network device 10.
  • the second side link resource is associated with the first side link HARQ process.
  • the second side link resource is associated with the first side link HARQ process, that is, the process number corresponding to the second side link resource is the same as the process number of the first side link HARQ process.
  • the second side link resource is associated with the first side link HARQ process, specifically: the HARQ process number included in the downlink control information (DCI) indicating the second side link resource is the first Process ID of the HARQ process on one side of the uplink.
  • DCI downlink control information
  • step 602 may be specifically implemented in the following manner: the first terminal 20 determines that the second side uplink resource is the third side uplink resource.
  • step 603 in the embodiment of the present application may be specifically implemented in the following manner: the first terminal 20 sends the first data packet to the second terminal 30 on the second side uplink resource after the first time.
  • the first terminal 20 needs to retransmit the first data packet of the first side uplink HARQ process m, but needs to feed back the NACK of the first side uplink HARQ process m to the network device 10, so that The network device 10 determines that the first data packet is not received correctly according to the received NACK, and then determines whether to schedule the second side uplink resource for the first terminal 20. However, since the first terminal 20 does not feed back the NACK of the first side uplink HARQ process m to the network device 10 at time n, the first terminal 20 can wait for the first side uplink HARQ process scheduled by the network device 10 The second sidelink resource (sidelink grant) for retransmission of the first data packet of m. After the first terminal 20 receives the sidelink grant, the first terminal 30 uses the sidelink grant to retransmit the first data packet of the first side uplink HARQ process m to the second terminal.
  • sidelink grant sidelink grant
  • step 602 provided in the embodiment of the present application can be specifically implemented in the following manner: In the case where the confirmation information indicates that the second terminal 30 did not correctly receive the first data packet, the first terminal 20 determines the first side uplink resource as the third side uplink resource.
  • the first side link resource may be a side link resource configured by the network device 10 for the first terminal 20 to transmit the first data packet.
  • the first side uplink resource may also be a side uplink resource independently selected by the first terminal 20 in a pre-configured side uplink resource pool.
  • step 603 provided in the embodiment of the present application can be specifically implemented in the following manner: the first terminal uses the first side uplink resource at the second moment to send the first data packet to the second terminal.
  • the second moment is after the first moment.
  • the second moment is obtained from the first moment and the preset offset value.
  • the preset offset value in the embodiment of the present application may be configured by the network device 10 to the first terminal 20, and the preset offset value may also be determined by the first terminal 20 based on a predefined protocol.
  • the first terminal 20 determines that it needs to retransmit the first data packet of the first side uplink HARQ process m, it needs to feed back the NACK of the first side uplink HARQ process m to the network device 10 at time n, so that The network device 10 determines that the first data packet is not received correctly according to the received NACK, and then determines whether to schedule the second side uplink resource for the first terminal 20.
  • the first terminal 20 since the first terminal 20 does not feed back the NACK of the first side uplink HARQ process m to the network device 10 at time n, the first terminal 20 can use the first side uplink resource of the previous transmission of the first data packet , Retransmit the first data packet to the second terminal 30 at time n+X.
  • X represents the preset offset value
  • n represents the first moment.
  • the first terminal 20 may determine the third side uplink resource in the first manner or the second manner through a predefined protocol.
  • the first terminal 20 using the first method or the second method to determine the side link resource may also be configured by the network device 10.
  • the network device 10 configures the first terminal 20 to determine the third side link resource in the first manner or the second manner, with reference to FIG. 7, the method provided in the embodiment of the present application may further include before step 601:
  • Step 605 The network device 10 sends instruction information to the first terminal 20.
  • the indication information is used to instruct the first terminal 20 to determine the side link resource in the first manner or the second manner.
  • the first method is: the first terminal 20 determines the second side uplink resource reallocated by the network device 10 for the first terminal 20 as the third side uplink resource.
  • the second way is: the first terminal 20 determines the first side uplink resource as the third side uplink resource.
  • the first method is that the first terminal 20 waits for the network device 10 to reallocate the second side uplink resource for the first terminal 20, and determines the second side uplink resource as the third side uplink resource . If configured as the first mode, the first terminal 20 and the network device 10 negotiate in advance if the first terminal 20 does not send confirmation information to the network device 10, that is, when the network device 10 does not receive the confirmation information, the network device 10 defaults to the first If a data packet is not successfully received, the network device can determine 10 that the first terminal 20 needs to allocate the second side link resource.
  • the second way is that the first terminal 20 retransmits the first data packet after the first time using the first side link resource of the previous transmission of the first data packet. If configured as the second mode, the first terminal 20 and the network device 10 agree in advance that if the first terminal 20 does not send confirmation information to the network device 20, that is, when the network device 10 does not receive the confirmation information, the network device 10 It is determined that there is no need to allocate the second side uplink resource for the first terminal 20, so that the first terminal 20 can use the first side uplink resource to retransmit the first data packet.
  • Step 606 The first terminal 20 receives the instruction information from the network device 10.
  • the first terminal 20 determines to use the first method or the second method to determine the side link resource according to the instruction information.
  • step 605 and step 606 can be omitted. That is, step 605 and step 606 are optional steps.
  • the solution described in FIG. 4 or FIG. 5 in the embodiments of the present application can be implemented as a complete solution with the solution described in FIG. 6 and FIG. 7, of course, the solution described in FIG. 4 or FIG. 5 can be used as a solution.
  • Implementation used to describe when the first terminal 20 does not send confirmation information to the network device 10, and when the confirmation information indicates that the first data packet is received correctly, and the network device 10 re-schedules the second side for the first terminal 20 In the case of uplink resources, how does the first terminal 20 handle the second side uplink resources.
  • 6 and 7 are implemented as a solution to describe that when the first terminal 20 does not send confirmation information to the network device 10, and when the confirmation information indicates that the first data packet is not received correctly, the first The terminal 20 retransmits the first data packet to the second terminal 30 by re-determining the side link resource used for retransmission.
  • FIG. 8 shows a method for processing side link resources provided by an embodiment of the present application, including:
  • Step 801 The first terminal 20 sends to the network device 10 the confirmation information of the first side uplink hybrid automatic repeat request HARQ process at the first time 20.
  • the confirmation information is used to instruct the second terminal 30 to correctly receive the first data packet of the first side uplink HARQ process sent by the first terminal 20 to the second terminal 30 on the first side uplink resource.
  • Step 802 If the first terminal 20 receives the second sidelink resource from the network device 10 again.
  • Step 803 When the first terminal 20 determines that the second terminal 30 correctly receives the first data packet, the first terminal 20 processes the second side uplink resource according to the HARQ parameter of the second side uplink resource.
  • the HARQ parameter of the second side uplink resource includes NDI.
  • the solution described in FIG. 8 is suitable for the first terminal 20 to send confirmation information of the first side link HARQ process to the network device 10, but the network device 10 does not receive the confirmation information, and allocates the second side link to the first terminal 20.
  • the condition of link resources is suitable for the first terminal 20 to send confirmation information of the first side link HARQ process to the network device 10, but the network device 10 does not receive the confirmation information, and allocates the second side link to the first terminal 20.
  • step 803 in the embodiment of the present application can be implemented in the following manner: you can refer to the foregoing step 4031, which will not be repeated here.
  • step 803 in the embodiment of the present application can be implemented in the following manner: you can refer to the foregoing step 4032, which will not be repeated here.
  • the method provided in the embodiment of the present application further includes: the first terminal 20 determines that the first data packet has been successfully received by the second terminal 30, and the first terminal 20 clears the first data packet.
  • HARQ buffer of the side link HARQ process the first terminal 20 determines that the first data packet has been successfully received by the second terminal 30, and the first terminal 20 clears the first data packet.
  • the first terminal transmits the second data packet on the second side uplink resource according to the HARQ parameters of the second side uplink resource, including: indicating a new transmission in the NDI, and the HARQ process number is the first side row
  • the first terminal transmits the second data packet on the second side uplink resource.
  • step 801 may be specifically implemented in the following manner: the first terminal 20 determines that the time when the confirmation information is sent and the time when the first terminal 20 sends the first message are both the first time. When the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information is higher than the priority of the side link channel carrying the first message Next, the first terminal 20 determines to send confirmation information to the network device 10 at the first time 20.
  • the first message is a message sent by the first terminal 20 to the network device 10 during the random access process.
  • the physical uplink channel is a physical uplink control channel
  • the first message is a side link SL media access control MAC protocol data unit PDU
  • the side link channel carrying the first message is a side link shared channel SL- SCH
  • the first terminal determines to send the confirmation information to the network device at the first moment according to the priority of the physical uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, including: In the case where the priority of the physical uplink control channel carrying the confirmation information is higher than the priority of the physical side link shared channel PSSCH mapped by the side link shared channel, the first terminal determines to send the confirmation to the network device at the first moment information.
  • the priority of the side link logical channel with the highest priority in the SL MAC PDU corresponding to the confirmation message is higher than the priority of the side link logical channel with the highest priority in the SL MAC PDU transmitted on the SL-SCH
  • the first terminal determines that the priority of the physical uplink control channel carrying the confirmation information is higher than the priority of the PSSCH mapped to the SL-SCH carrying the SL MAC PDU.
  • the physical uplink channel is the physical uplink shared channel PUSCH
  • the first message is the side link SL media access control MAC protocol data unit PDU
  • the side link channel carrying the first message is the side link shared channel SL -SCH.
  • the first terminal determines to send confirmation information to the network device at the first moment according to the priority of the uplink channel carrying the confirmation information and the priority of the side link channel carrying the first message, including: if the priority of the PUSCH is higher than For the priority of SL-SCH, the first terminal determines to send confirmation information to the network device at the first moment.
  • the first terminal determines that the priority of the PUSCH is higher than the priority of the SL-SCH.
  • the first terminal determines that the priority of the PUSCH is higher than the priority of the SL-SCH.
  • the method provided in the embodiment of the present application further includes: the priority of the physical uplink channel carrying the confirmation information is lower than the priority of the first message, or the priority of the physical uplink channel carrying the confirmation information In the case where the priority is lower than the priority of the side link channel carrying the first message, the first terminal sends the first message preferentially at the first moment. That is, the confirmation message is discarded.
  • an embodiment of the present application provides a method for processing side link resources, including:
  • Step 901 The first terminal 20 determines to send confirmation information of the first side uplink hybrid automatic repeat request HARQ process to the network device 10 at the first moment.
  • the confirmation information is used to indicate that the second terminal 30 did not correctly receive the first data packet of the first side uplink HARQ process sent by the first terminal 20 to the second terminal 30 on the first side uplink resource.
  • step 90 For the specific implementation of step 901, reference may be made to the description at step 801, which is not repeated here.
  • Step 902 If the first terminal 20 does not receive the second side uplink resource from the network device 10, the first terminal 20 determines to determine the first side uplink resource as the third side uplink resource.
  • the first side link resource may be a side link resource configured by the network device 10 for the first terminal 20 to transmit the first data packet.
  • the first side uplink resource may also be a side uplink resource independently selected by the first terminal 20 in a pre-configured side uplink resource pool.
  • the first terminal 20 is preconfigured to determine the side link resource in the second manner, or the first terminal 20 determines from the network device 10 to determine the side link resource in the second manner.
  • the second way is: the first terminal 20 determines the first side uplink resource as the third side uplink resource.
  • Step 903 The first terminal 20 resends the first data packet to the second terminal 30 through the first side uplink resource.
  • step 903 For the specific implementation of step 903, refer to step 603, which can be specifically implemented in the following manners, which will not be repeated here.
  • FIGS. 8 and 9 are the same as the content in FIGS. 5-7, the content involved in FIGS. 8 and 9 can be described with reference to the above-mentioned FIGS. 5-7. Repeat it again.
  • each network element such as the first terminal, includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the first terminal may divide the functional units according to the foregoing method example.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the method of the embodiment of the present application is described above with reference to FIG. 1 to FIG. 9.
  • the following describes the device for the transmission side uplink resource for executing the foregoing method provided by the embodiment of the present application.
  • the method and the device can be combined and referenced with each other, and the device for sending side uplink resources provided in the embodiment of the present application can execute the steps performed by the first terminal in the above method for sending side uplink resources.
  • FIG. 10 shows an apparatus for sending side uplink resources involved in the foregoing embodiment, and the apparatus for sending side uplink resources may include: a processing unit 101.
  • the device may further include a communication unit 102.
  • the device for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the processing unit 101, the apparatus for supporting the uplink resource on the transmitting side executes the steps 401, 402, and 403 in FIG. 4 by the first terminal in the above-mentioned embodiment.
  • the processing unit 101 is further configured to support an apparatus for transmitting side uplink resources to execute step 4011, step 4012, step 4031, and step 4032 performed by the first terminal in the foregoing embodiment.
  • the communication unit 102 is further configured to support the device for transmitting side uplink resources to execute step 404 performed by the first terminal in the foregoing embodiment.
  • the device for sending side uplink resources is the first terminal or a chip applied to the first terminal.
  • the processing unit 101 executes step 601 and step 602 performed by the first terminal in the foregoing embodiment.
  • the communication unit 102 is configured to support the device for the transmission side uplink resource to execute step 603 performed by the first terminal in the foregoing embodiment.
  • the communication unit 102 the device for supporting the uplink resource on the transmission side, performs step 604 and step 606 performed by the first terminal in the foregoing embodiment.
  • the device for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the communication unit 102 is configured to support the device for the transmission side uplink resource to execute step 801 and step 802 performed by the first terminal in the foregoing embodiment.
  • the processing unit 101 is configured to support the device for the transmission side uplink resource to execute step 803 executed by the first terminal in the foregoing embodiment.
  • the apparatus for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the communication unit 102 is configured to support the device for the transmission side uplink resource to execute step 901 and step 903 performed by the first terminal in the foregoing embodiment.
  • the processing unit 101 is configured to support the device for the transmission side uplink resource to execute step 902 executed by the first terminal in the foregoing embodiment.
  • FIG. 11 shows a schematic diagram of a possible logical structure of the device for transmitting side uplink resources involved in the foregoing embodiment.
  • the device for sending side uplink resources includes: a processing module 112 and a communication module 113.
  • the processing module 112 is configured to control and manage the actions of the device transmitting the uplink resource.
  • the processing module 112 is configured to perform information/data processing steps on the device transmitting the uplink resource.
  • the communication module 113 is used to support the steps of information/data sending or receiving by the device of the sending side uplink resource.
  • the apparatus for sending side-link resources may further include a storage module 111 for storing program codes and data of the apparatus for sending side-link resources.
  • the device for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the processing module 112 the device for supporting the uplink resource on the transmitting side executes the steps 401, 402, and 403 in FIG. 4 by the first terminal in the foregoing embodiment.
  • the processing module 112 is further configured to support the device for transmitting side uplink resources to execute step 4011, step 4012, step 4031, step 4032 performed by the first terminal in the foregoing embodiment.
  • the communication module 113 is also configured to support the device for sending side uplink resources to execute step 404 performed by the first terminal in the foregoing embodiment.
  • the device for sending side uplink resources is the first terminal or a chip applied to the first terminal.
  • the processing module 112 the device for supporting the uplink resource on the transmitting side, executes step 601 and step 602 performed by the first terminal in the foregoing embodiment.
  • the communication module 113 is configured to support the device for the transmission side uplink resource to execute step 603 performed by the first terminal in the foregoing embodiment.
  • the communication module 113 a device for supporting the uplink resource of the transmission side, performs step 604 and step 606 performed by the first terminal in the foregoing embodiment.
  • the device for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the communication module 113 is configured to support the device for the transmission side uplink resource to execute step 801 and step 802 performed by the first terminal in the foregoing embodiment.
  • the processing module 112 is configured to support the device for supporting the transmission side uplink resource to execute step 803 executed by the first terminal in the foregoing embodiment.
  • the apparatus for sending side uplink resources is the first terminal, or is a chip applied to the first terminal.
  • the communication module 113 is configured to support the transmission side uplink resource device to execute steps 901 and 903 performed by the first terminal in the foregoing embodiment.
  • the processing module 112 is configured to support the device for supporting the transmission side uplink resource to execute step 902 executed by the first terminal in the foregoing embodiment.
  • the processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 113 may be a transceiver, a transceiver circuit, or a communication interface.
  • the storage module 111 may be a memory.
  • the device for sending side uplink resources involved in this application may be the one shown in FIG. communication device.
  • the communication device is a first terminal or a chip applied in the first terminal.
  • the processor 41 or the processor 45 is configured to support the communication device to execute steps 401, 402, and 403 in Fig. 4 by the first terminal in the above-mentioned embodiment.
  • the processor 41 or the processor 45 is further configured to support the communication device to execute step 4011, step 4012, step 4031, step 4032 performed by the first terminal in the foregoing embodiment.
  • the transceiver 43 is also used to support the communication device to execute step 404 executed by the first terminal in the foregoing embodiment.
  • the communication device is the first terminal or a chip applied to the first terminal.
  • the processor 41 or the processor 45 is configured to support the communication device to execute steps 601 and 602 executed by the first terminal in the foregoing embodiment.
  • the transceiver 43 is configured to support the communication device to execute step 603 executed by the first terminal in the foregoing embodiment.
  • the transceiver 43 is configured to support the communication device to perform steps 604 and 606 performed by the first terminal in the foregoing embodiment.
  • the communication device is the first terminal or a chip applied to the first terminal.
  • the transceiver 43 is used to support the communication device to perform step 801 and step 802 performed by the first terminal in the foregoing embodiment.
  • the processor 41 or the processor 45 is configured to support the communication device to execute step 803 executed by the first terminal in the foregoing embodiment.
  • the communication device is a first terminal, or a chip applied in the first terminal.
  • the transceiver 43 is used to support the communication device to perform steps 901 and 903 performed by the first terminal in the foregoing embodiment.
  • the processor 41 or the processor 45 is configured to support the communication device to execute step 902 executed by the first terminal in the foregoing embodiment.
  • FIG. 12 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application.
  • the chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.
  • the chip 150 further includes a memory 1540.
  • the memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.
  • the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).
  • One possible implementation manner is that the structure of the chip used by the first terminal is similar, and different devices may use different chips to realize their respective functions.
  • the processor 1510 controls processing operations of any one of the first terminals.
  • the processor 1510 may also be referred to as a central processing unit (central processing unit, CPU).
  • the memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A part of the memory 1540 may also include NVRAM.
  • the memory 1540, the communication interface 1530, and the memory 1540 are coupled together through a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1520 in FIG. 12.
  • the methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510.
  • the processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 1510 or instructions in the form of software.
  • the aforementioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an ASIC, an off-the-shelf programmable gate array (field-programmable gate array, FPGA), or other programmable logic devices, discrete gates or transistors. Logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application-the-shelf programmable gate array
  • FPGA field-programmable gate array
  • Logic devices discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be 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 decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.
  • the communication interface 1530 is used to perform the receiving and sending steps of the first terminal in the embodiment shown in FIGS. 4-9.
  • the processor 1510 is configured to execute the processing steps of the first terminal in the embodiment shown in FIGS. 4-9.
  • the above communication unit may be a communication interface of the device for receiving signals from other devices.
  • the communication unit is a communication interface for the chip to receive signals or send signals from other chips or devices.
  • embodiments of the present application may provide a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when the instructions are executed, the functions of the first terminal in FIG. 4 and FIG. 5 are realized.
  • the embodiment of the present application provides a computer-readable storage medium, and the computer-readable storage medium stores instructions. When the instructions are executed, the functions of the first terminal shown in FIG. 6 and FIG. 7 are realized.
  • the embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions. When the instructions are executed, the functions of the first terminal in FIG. 8 are realized.
  • the embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions. When the instructions are executed, the function of the first terminal as shown in FIG. 9 is realized.
  • the embodiment of the present application provides a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal in FIG. 8 are realized.
  • the embodiment of the present application provides a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal in FIG. 9 are realized.
  • the embodiment of the present application provides a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal in FIG. 4 or FIG. 5 are realized.
  • the embodiment of the present application provides a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal in FIG. 6 or FIG. 7 are realized.
  • the embodiment of the present application provides a chip, which is applied to a first terminal, the chip includes at least one processor and a communication interface, the communication interface is coupled with the at least one processor, and the processor is used to run instructions to implement Function of the first terminal in 5.
  • the embodiment of the present application provides a chip, which is applied to a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to run instructions to implement The function of the first terminal in 7.
  • the embodiment of the present application provides a chip, which is applied to a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to run instructions to implement the first terminal shown in FIG. The function of a terminal.
  • the embodiment of the present application provides a chip, which is applied to a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to run instructions to implement the first terminal shown in FIG. The function of a terminal.
  • the embodiment of the present application provides a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal in FIG. 4, FIG. 5, or FIG. 6 are realized.
  • An embodiment of the present application provides a chip, which is applied to a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor.
  • the processor is used to execute instructions to implement 5.
  • An embodiment of the present application provides a communication system that includes a first terminal, a second terminal, and a network device 10, where the first terminal is used to perform the steps performed by the first terminal in FIGS. 4-9, and the network device 10 is used to execute the steps performed by the network device 10 in FIGS. 4-9.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program or instruction may be transmitted from a website, computer, The server or data center transmits to another website site, computer, server or data center through wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that integrates one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disc (digital video disc, DVD); it may also be a semiconductor medium, such as a solid state drive (solid state drive). , SSD).

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

Abstract

La présente invention concerne, selon des modes de réalisation, un procédé, un appareil et un système de traitement d'une ressource de liaison latérale, qui se rapportent au domaine technique des communications, et sont utilisés pour traiter une ressource de liaison latérale attribuée permettant de retransmettre un paquet de données lorsqu'un premier terminal n'envoie pas d'informations HARQ à un dispositif de réseau. Un premier terminal détermine que des informations d'accusé de réception d'un premier processus HARQ de liaison latérale ne sont pas envoyées à un dispositif de réseau à un premier moment, les informations d'accusé de réception étant utilisées pour indiquer si un second terminal reçoit correctement un premier paquet de données du premier processus HARQ de liaison latérale envoyé par le premier terminal au second terminal sur une première ressource de liaison latérale ; le premier terminal détermine une seconde ressource de liaison latérale ; et lorsque les informations d'accusé de réception indiquent que le second terminal reçoit correctement le premier paquet de données, le premier terminal traite la seconde ressource de liaison latérale selon un paramètre HARQ. La solution peut être appliquée dans les domaines d'une conduite sans pilote, d'une conduite autonome, d'une conduite assistée, d'une conduite intelligente, d'une conduite connectée, d'une conduite connectée intelligente, d'un partage d'automobile, d'une intelligence artificielle, etc.
PCT/CN2020/108290 2019-08-16 2020-08-10 Procédé, appareil et système de traitement d'une ressource de liaison latérale WO2021031912A1 (fr)

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