WO2021203253A1 - Procédé, appareil et dispositif de transmission de données, et support de stockage lisible par ordinateur - Google Patents

Procédé, appareil et dispositif de transmission de données, et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2021203253A1
WO2021203253A1 PCT/CN2020/083608 CN2020083608W WO2021203253A1 WO 2021203253 A1 WO2021203253 A1 WO 2021203253A1 CN 2020083608 W CN2020083608 W CN 2020083608W WO 2021203253 A1 WO2021203253 A1 WO 2021203253A1
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Prior art keywords
base station
channel occupancy
channel
occupancy indication
uplink
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PCT/CN2020/083608
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English (en)
Chinese (zh)
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董贤东
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080000669.4A priority Critical patent/CN113767669A/zh
Priority to PCT/CN2020/083608 priority patent/WO2021203253A1/fr
Publication of WO2021203253A1 publication Critical patent/WO2021203253A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of wireless communication technology. Specifically, this application relates to a data transmission method, device, device, and computer-readable storage medium.
  • TX1 will send data to RX1. Before sending, TX1 will do a clear channel assessment (CCA, Clear Channel Assessment). At this time, TX2 is sending data to RX2, and the signal it sends will cause interference to the reception of RX1, but because TX1 is far away from TX2, the interference from TX2 will not be detected during CCA, so TX1 will occupy the channel to send to RX1 data. In this case, the data reception of RX1 is subject to strong interference from TX2. For TX1, TX2 is a hidden node.
  • CCA Clear Channel Assessment
  • a new air interface signal, channel role indication (CUI, The Channel Usage Indication signal is similar to the RTS (Request to Send, request to send frame)/CTS (Clear to Send, channel clear frame) signal in 802.11.
  • CUI-T Channel Usage Indication for Transmission
  • CUI-R Channel Usage Indication for Reception
  • the channel function indication signal used for transmission If other surrounding nodes that want to send data listen to the CUI-T signal, the channel function indication signal used for transmission, then backoff will not be performed; on the contrary, if they listen to the channel function indication signal CUI-R signal used for reception, then backoff will be performed .
  • the solution to hidden nodes in the prior art requires the sending end to perform CUI-T/CUI-R handshake with the receiving end after occupying the channel through the LBT process to start data transmission, which wastes part of the transmission resources.
  • this application proposes a data transmission method, device, electronic equipment, and computer-readable storage medium to solve the problem of hidden node interference and how to save transmission resources.
  • this application provides a data transmission method applied to a base station, including:
  • the channel occupancy indication is used to instruct the neighboring nodes of the base station not to send data
  • the channel occupancy indication includes at least one of the following information:
  • the starting position of the uplink transmission The duration information of the uplink transmission; the identity of the base station.
  • the method before sending the channel occupancy indication, the method further includes:
  • the interference value is less than the preset energy detection threshold, it is determined to send the channel occupancy indication.
  • the method before sending the channel occupancy indication, the method further includes:
  • the downlink control information DCI scheduling instruction is sent to the UE to enable the UE to perform uplink data transmission at the position of the first time-frequency resource indicated by the DCI scheduling instruction, and the first time-frequency resource includes the physical uplink shared channel PUSCH.
  • the method before sending the channel occupancy indication, the method further includes:
  • the second time-frequency resource includes a physical uplink shared channel for configuration authorization CG-PUSCH.
  • the method further includes:
  • the base station In response to not receiving the uplink information sent by the UE through the CG-PUSCH resource for N consecutive times, the base station does not send the channel occupancy indication before the time domain resource of the N+1th CG-PUSCH, and N is a positive integer.
  • N is configured through RRC layer signaling or predetermined by protocol.
  • the DCI scheduling instruction indicates that the PUSCH is the first priority.
  • the CG-PUSCH is configured as the second priority through RRC layer signaling.
  • sending the channel occupancy indication includes:
  • the method for determining the sending timing of the channel occupancy indication includes at least one of the following:
  • the channel occupancy indication is sent on a periodically configured channel before the start of the uplink transmission and is closest to the start time of the uplink transmission, and the periodically configured channel includes at least one of a broadcast channel and a downlink control channel.
  • this application provides a data transmission method applied to UE, including:
  • the channel occupancy indication includes at least one of the following:
  • the starting position of the uplink data The duration information of the uplink data; the identity of the base station.
  • the UE when the UE does not receive the channel occupation indication sent by the base station, the UE does not send uplink data to the base station.
  • this application provides a data transmission device, which is applied to a base station, and includes:
  • the first processing module is configured to send a channel occupancy indication before the start of uplink transmission, and the channel occupancy indication is used to instruct neighboring nodes of the base station not to send data;
  • the second processing module is used to receive uplink data sent by the UE.
  • this application provides a data transmission device, which is applied to a UE, and includes:
  • the third processing module is used to receive the channel occupation indication sent by the base station, and the channel occupation indication is used to instruct the UE to perform uplink transmission;
  • the fourth processing module is used to send uplink data to the base station.
  • this application provides a base station, including: a processor, a memory, and a bus;
  • Bus used to connect the processor and memory
  • Memory used to store operation instructions
  • the processor is configured to execute the data transmission method of the first aspect of the present application by invoking the operation instruction.
  • this application provides a UE, including: a processor, a memory, and a bus;
  • Bus used to connect the processor and memory
  • Memory used to store operation instructions
  • the processor is configured to execute the data transmission method of the second aspect of the present application by invoking the operation instruction.
  • the present application provides a computer-readable storage medium storing a computer program, and the computer program is used to execute the data transmission method of the first aspect of the present application.
  • the present application provides a computer-readable storage medium storing a computer program, and the computer program is used to execute the data transmission method of the second aspect of the present application.
  • the base station sends a channel occupancy indication before the start of the uplink transmission, and the channel occupancy indication is used to instruct the neighboring nodes of the base station not to send data; to receive the uplink data sent by the user equipment UE.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • Fig. 1 is a schematic diagram of hidden nodes in the prior art
  • FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of this application.
  • FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment of this application.
  • FIG. 5 is a schematic flowchart of another data transmission method provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a data transmission device provided by an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of another data transmission device provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a base station provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a UE provided by an embodiment of the application.
  • the sender In the standard discussion and design of R16 NR-U (NR-Unlicensed, unlicensed spectrum based on the new air interface), the sender usually needs to perform clear channel assessment (CCA, Clear Channel Assessment) before sending data to evaluate the channel
  • CCA Clear Channel Assessment
  • the interference level in. If the interference is lower than the energy detection threshold (the threshold is specified by the communication protocol), the sender considers the channel to be idle, and the sender can occupy the channel to send data. If the interference level is higher than the detection threshold, the sender considers the channel to be busy, and the sender will not be able to occupy the channel to send data. This is the channel access mechanism (LBT, Listen Before Talk) that listens first and speaks later.
  • LBT Listen Before Talk
  • PUSCH Physical Uplink Shared Channel
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • the network architecture includes a base station 110, a UE 120 and multiple nodes 130.
  • the base station 110 is deployed in the access network.
  • the base station 110 is deployed in the access network NG-RAN (New Generation-Radio Access Network) in the 5G system.
  • NG-RAN New Generation-Radio Access Network
  • the base station 110 and the UE 120 or between the base station 110 and multiple nodes 130 communicate with each other through a certain air interface technology, for example, may communicate with each other through cellular technology.
  • An embodiment of the present application provides a data transmission method, which is applied to a base station.
  • a schematic flowchart of the method is shown in FIG. 3, and the method includes:
  • S101 Send a channel occupancy indication before the start of uplink transmission, where the channel occupancy indication is used to instruct neighboring nodes of the base station not to send data.
  • the base station is a base station of an unlicensed spectrum cell
  • the unlicensed spectrum cell refers to a cell that allows the UE to use an unlicensed frequency band (or called an unlicensed spectrum) to communicate with the base station.
  • the types of base stations include various forms of macro base stations, micro base stations, relay stations, and access points.
  • the channel occupancy indication includes at least one of the following:
  • the starting position of the uplink transmission The duration information of the uplink transmission; the identity of the base station.
  • the channel occupancy indicator can carry the start position of the uplink transmission and the time length of the uplink transmission, and is used to notify the neighboring nodes of the base station of the specific period of backoff, that is, the base station notifies the neighboring nodes of the base station to No data will be sent during the specific time period.
  • the channel occupancy indicator may carry the identification ID of the base station, for example, a physical cell ID, and the physical cell ID is used to indicate the source of the channel occupancy indicator.
  • the UE as the sender can use the channel occupancy indication as feedback information of the base station.
  • the UE determines that the reception interference of the base station is low, and the UE can send uplink data to the base station; when the UE does not receive the channel occupancy indication sent by the base station, the UE determines that the reception interference of the base station is large , The UE will not send uplink data to the base station.
  • the neighboring node includes a transmitting end other than the base station and the UE.
  • the types of neighboring nodes include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems, as well as various forms of base stations, User Equipment (UE), Mobile Station (MS), terminal device (terminal device), etc.
  • UE User Equipment
  • MS Mobile Station
  • terminal device terminal device
  • S102 Receive uplink data sent by user equipment UE.
  • the base station sends a channel occupancy indication before the start of the uplink transmission, and the channel occupancy indication is used to instruct the neighboring nodes of the base station not to send data; to receive the uplink data sent by the user equipment UE.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • the method before sending the channel occupancy indication, the method further includes:
  • the interference value is less than the preset energy detection threshold, it is determined to send the channel occupancy indication
  • the interference value is not less than the preset energy detection threshold, it is determined not to send the channel occupancy indication.
  • the base station before the UE starts to send uplink data, the base station performs idle channel detection to determine the interference value; when the interference value is less than the preset energy detection threshold, the base station detects that the surrounding channels are idle, then the base station Send a channel occupancy indication to the UE and the neighboring nodes of the base station. After receiving the channel occupancy indication, the neighboring node of the base station will back off, that is, the neighboring node will not send data; when the interference value is not less than the preset energy detection threshold, the base station Detecting that the surrounding channels are busy, that is, the neighboring node is sending data, and the neighboring node that is sending data is a hidden node, the base station does not send a channel occupancy indication to the UE and neighboring nodes.
  • the energy detection threshold that is, the energy detection threshold, can be agreed upon by the communication protocol or defined by the base station.
  • Neighboring nodes include transmitters other than base stations and UEs.
  • the method before sending the channel occupancy indication, the method further includes:
  • the method before sending the channel occupancy indication, the method further includes:
  • the second time-frequency resource includes CG-PUSCH (Configured Grant Physical Uplink Shared Channel, configure the authorized physical uplink shared channel).
  • the UE’s uplink transmission is divided into two methods.
  • One method is dynamic scheduling. Uplink transmission is performed at the frequency resource location, and the time-frequency resource may be PUSCH.
  • the base station pre-configures periodic time-frequency resources through RRC layer signaling, and the UE can periodically send uplink data on these configured time-frequency resources.
  • the periodic time-frequency resource is CG-PUSCH. Therefore, the base station does not need the UE to use CUI-T or other function signals to specifically notify the base station, and the base station can know when the UE will initiate uplink transmission.
  • the uplink transmission of the UE is dynamically scheduled by the base station in advance through DCI or pre-configured semi-statically. Therefore, the base station can determine when the UE will initiate the uplink transmission. For the uplink transmission of the UE, the base station The channel occupancy indication will be sent before the start of the uplink transmission to notify the neighboring nodes of the base station to back off. After the UE occupies the channel, it does not need to send any channel occupancy indication to the base station, and can directly start the uplink data transmission.
  • the method further includes:
  • the base station In response to not receiving the uplink information sent by the UE through the CG-PUSCH resource for N consecutive times, the base station does not send the channel occupancy indication before the time domain resource of the N+1th CG-PUSCH, and N is a positive integer.
  • N is configured through RRC layer signaling or predetermined by protocol.
  • the UE has periodically configured resources, for example, CG-PUSCH.
  • the base station sends RRC layer signaling to the UE to enable the UE to periodically transmit uplink data on the CG-PUSCH indicated by the RRC layer signaling; but the UE has no uplink data to be transmitted, and the base station sends the channel occupation to the UE
  • the base station did not receive the uplink data sent by the UE.
  • the base station responded that it did not receive the uplink data sent by the UE through the CG-PUSCH resource for N consecutive times. Before the N+1th time domain resource of the CG-PUSCH, the base station did not Send a channel occupancy indication.
  • the DCI scheduling instruction indicates that the PUSCH is the first priority.
  • the first priority is high priority
  • the URLLC uplink service uses the high priority PUSCH for scheduling.
  • the CG-PUSCH is configured as the second priority through RRC layer signaling.
  • the second priority is high priority.
  • sending the channel occupancy indication includes:
  • the method for determining the sending timing of the channel occupancy indication includes at least one of the following:
  • the channel occupancy indication is sent on the periodically configured channel before the start of the uplink transmission and closest to the start time of the uplink transmission, and the periodically configured channel includes at least one of a broadcast channel and a downlink control channel.
  • the transmission timing of the channel occupancy indicator is determined according to the time interval between the transmission timing of the channel occupancy indicator and the uplink transmission start time, which is predetermined or configured by the upper layer, and the transmission timing is included in the start of the transmission of the uplink data.
  • M is a positive integer.
  • the base station when the base station needs to send a channel occupancy indication on a certain periodically configured channel, the base station can send the channel occupancy indication on the periodically configured channel before the start of uplink transmission and the closest to the start time of the uplink transmission. instruct.
  • the channel can be a broadcast channel, a downlink control channel, and so on.
  • the embodiment of the present application provides another data transmission method, which is applied to the UE.
  • the flow diagram of the method is shown in Fig. 4, and the method includes:
  • S201 Receive a channel occupancy indication sent by a base station, where the channel occupancy indication is used to instruct the UE to perform uplink transmission.
  • the base station sends a channel occupancy indication before the start of uplink transmission to notify neighboring nodes of the base station to back off.
  • the UE receives the channel occupancy indication sent by the base station, and after occupying the channel, it does not need to send any channel occupancy indication to the base station, and can directly send uplink data to the base station.
  • S202 Send uplink data to the base station.
  • the channel occupancy indication includes at least one of the following:
  • the starting position of the uplink transmission The duration information of the uplink transmission; the identity of the base station.
  • the UE when the UE does not receive the channel occupation indication sent by the base station, the UE does not send uplink data to the base station.
  • the UE receives the channel occupation indication sent by the base station, and the channel occupation indication is used to instruct the UE to perform uplink transmission; and send uplink data to the base station.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • the embodiment of the present application provides yet another data transmission method.
  • the schematic flowchart of the method is shown in FIG. 5, and the method includes:
  • the base station sends a DCI scheduling instruction or RRC layer signaling to the UE.
  • the UE performs uplink transmission at a certain time-frequency resource location after receiving the DCI scheduling instruction sent by the base station.
  • the time-frequency resource may be PUSCH; or the base station uses RRC layer signaling to pre-configure periodic Time-frequency resources.
  • the UE can periodically send uplink data on these configured time-frequency resources.
  • the periodic time-frequency resource is CG-PUSCH.
  • S302 The base station performs idle channel detection and determines the interference value.
  • the base station judges whether the interference value is less than the preset energy detection threshold. When the interference value is less than the preset energy detection threshold, the base station detects that the channel around the base station is idle, and then goes to step S303 for processing; when the interference value is not less than the preset energy detection threshold Energy detection threshold. The base station detects that there is a node in each node adjacent to the base station that is sending data, then the base station does not send a channel occupancy indication to the UE and each node.
  • the base station sends a channel occupation indication to the UE and each node.
  • each node adjacent to the base station receives the channel occupancy indication, each node does not send data.
  • S305 The UE sends uplink data to the base station on the time-frequency resource indicated by the DCI scheduling instruction or RRC layer signaling according to the channel occupation indication.
  • the UE transmits uplink data on the PUSCH position indicated by the DCI scheduling instruction; or the UE periodically transmits uplink data on the CG-PUSCH indicated by the RRC layer signaling.
  • the base station sends DCI scheduling instructions or RRC layer signaling to the UE, that is, the transmission of the UE's uplink data is dynamically scheduled by the base station in advance through the DCI or pre-configured semi-statically. Therefore, the base station can determine the UE When will the uplink transmission be initiated; the base station sends a channel occupancy indication before the UE's uplink transmission starts, instructing each node not to send data, and instructing the UE to transmit uplink data, so that the UE does not need to send a channel to the base station after occupying the channel With the occupancy indication, the UE can directly start the transmission of uplink data, thereby solving the problem of interference from various hidden nodes and saving transmission resources.
  • an embodiment of the present application also provides a data transmission device applied to a base station.
  • the structure diagram of the device is shown in FIG. 6.
  • the data transmission device 40 includes a first processing module 401 and a second processing module 401.
  • the first processing module 401 is configured to send a channel occupancy indication before the start of uplink transmission, and the channel occupancy indication is used to instruct neighboring nodes of the base station not to send data;
  • the second processing module 402 is configured to receive uplink data sent by the UE.
  • the channel occupancy indication includes at least one of the following information:
  • the starting position of the uplink transmission The duration information of the uplink transmission; the identity of the base station.
  • the method before sending the channel occupancy indication, the method further includes:
  • the interference value is less than the preset energy detection threshold, it is determined to send the channel occupancy indication
  • the interference value is not less than the preset energy detection threshold, it is determined not to send the channel occupancy indication.
  • the method before sending the channel occupancy indication, the method further includes:
  • the downlink control information DCI scheduling instruction is sent to the UE to enable the UE to perform uplink data transmission at the position of the first time-frequency resource indicated by the DCI scheduling instruction, and the first time-frequency resource includes the physical uplink shared channel PUSCH.
  • the method before sending the channel occupancy indication, the method further includes:
  • the second time-frequency resource includes a physical uplink shared channel for configuration authorization CG-PUSCH.
  • the method further includes:
  • the base station In response to not receiving the uplink information sent by the UE through the CG-PUSCH resource for N consecutive times, the base station does not send the channel occupancy indication before the time domain resource of the N+1th CG-PUSCH, and N is a positive integer.
  • N is configured through RRC layer signaling or predetermined by protocol.
  • the DCI scheduling instruction indicates that the PUSCH is the first priority.
  • the CG-PUSCH is configured as the second priority through RRC layer signaling.
  • the first processing module 401 is specifically configured to send the channel occupancy indication at the determined sending timing of the channel occupancy indication
  • the method for determining the sending timing of the channel occupancy indication includes at least one of the following:
  • the channel occupancy indication is sent on the periodically configured channel before the start of the uplink transmission and closest to the start time of the uplink transmission, and the periodically configured channel includes at least one of a broadcast channel and a downlink control channel.
  • the base station sends a channel occupancy indication before the start of the uplink transmission, and the channel occupancy indication is used to instruct the neighboring nodes of the base station not to send data; to receive the uplink data sent by the user equipment UE.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • the embodiment of the present application also provides another data transmission device, which is applied to the UE.
  • the structure diagram of the device is shown in FIG. 7.
  • the data transmission device 50 includes a third processing module 501 and a third processing module 501.
  • the third processing module 501 is configured to receive a channel occupancy indication sent by a base station, and the channel occupancy indication is used to instruct the UE to perform uplink transmission;
  • the fourth processing module 502 is configured to send uplink data to the base station.
  • the channel occupancy indication includes at least one of the following information:
  • the starting position of the uplink transmission The duration information of the uplink transmission; the identity of the base station.
  • the UE when the UE does not receive the channel occupation indication sent by the base station, the UE does not send uplink data to the base station.
  • the UE receives the channel occupancy indication sent by the base station, and the channel occupancy indication is used to instruct the UE to perform uplink transmission; and send uplink data to the base station.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • an embodiment of the present application also provides a base station.
  • a schematic structural diagram of the base station is shown in FIG. 8.
  • the base station 6000 includes at least one processor 6001, a memory 6002, and a bus 6003. It is electrically connected to the memory 6002; the memory 6002 is configured to store at least one computer-executable instruction, and the processor 6001 is configured to execute the at least one computer-executable instruction, so as to execute any one of the embodiments of the present application or The steps of any data transmission method provided by any optional implementation manner.
  • the processor 6001 may be an FPGA (Field-Programmable Gate Array) or other devices with logic processing capabilities, such as MCU (Microcontroller Unit), CPU (Central Process Unit, central processing unit) ).
  • FPGA Field-Programmable Gate Array
  • MCU Microcontroller Unit
  • CPU Central Process Unit, central processing unit
  • the base station sends a channel occupancy indication before the start of the uplink transmission, and the channel occupancy indication is used to instruct the neighboring nodes of the base station not to send data; to receive the uplink data sent by the user equipment UE.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • an embodiment of the present application also provides a UE.
  • a schematic structural diagram of the UE is shown in FIG. 9.
  • the base station 7000 includes at least one processor 7001, a memory 7002, and a bus 7003, and at least one processor 7001 is Electrically connected to the memory 7002; the memory 7002 is configured to store at least one computer-executable instruction, and the processor 7001 is configured to execute the at least one computer-executable instruction, so as to execute any one of the embodiments of the present application or The steps of any data transmission method provided by any optional implementation manner.
  • the processor 7001 may be an FPGA (Field-Programmable Gate Array) or other devices with logic processing capabilities, such as MCU (Microcontroller Unit), CPU (Central Process Unit, central processing unit) ).
  • FPGA Field-Programmable Gate Array
  • MCU Microcontroller Unit
  • CPU Central Process Unit, central processing unit
  • the UE receives the channel occupancy indication sent by the base station, and the channel occupancy indication is used to instruct the UE to perform uplink transmission; and send uplink data to the base station.
  • the base station sends a channel occupancy indication before the start of the transmission of the UE's uplink data, instructing the neighboring nodes of the base station to back off, that is, instructing the neighboring nodes of the base station not to send data, and instructing the UE to transmit the uplink data, so that the UE After the channel is occupied, the UE does not need to send a channel occupancy indication to the base station, and the UE can directly start the transmission of uplink data, thereby solving the problem of hidden node interference and saving transmission resources.
  • the embodiments of the present application also provide a computer-readable storage medium for storing computer software instructions used by the above-mentioned base station or UE, and storing a computer program that is used when executed by a processor. Implement the steps of any data transmission method provided in any embodiment or any optional implementation manner in the embodiments of the present application.
  • the computer-readable storage medium includes, but is not limited to, any type of disk (including floppy disk, hard disk, optical disk, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory), RAM ( Random Access Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic Card or light card. That is, a readable storage medium includes any medium that stores or transmits information in a readable form by a device (for example, a computer).
  • the base station sends a channel occupancy indication before the start of the transmission of the UE’s uplink data, instructing each node to back off, that is, instructing each node not to send data, and instructing the UE to transmit uplink data, so that the UE does not need to send the uplink data after occupying the channel.
  • the base station sends the channel occupancy indication, and the UE can directly start the transmission of uplink data, thereby solving the problem of interference from various hidden nodes and saving transmission resources.

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  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente invention concernent un procédé, un appareil et un dispositif de transmission de données, ainsi qu'un support de stockage lisible par ordinateur. Le procédé comprend les étapes consistant à : envoyer une indication d'occupation de canal avant le début d'une transmission en liaison montante, l'indication d'occupation de canal étant utilisée pour ordonner à un nœud voisin d'une station de base de ne pas envoyer de données ; et recevoir des données de liaison montante envoyées par un équipement utilisateur (UE). Au cours du procédé, la station de base envoie une indication d'occupation de canal avant le début de la transmission des données de liaison montante de l'UE de façon à ordonner au nœud voisin de la station de base de s'interrompre, autrement dit à ordonner au nœud voisin de la station de base de ne pas envoyer des données. De plus, l'UE reçoit l'instruction de transmettre des données de liaison montante. Par conséquent, après une occupation d'un canal, l'UE n'a pas à envoyer une indication d'occupation de canal à la station de base. L'UE peut donc commencer directement la transmission de données de liaison montante, ce qui règle le problème de l'interférence de nœuds cachés et permet d'économiser des ressources de transmission.
PCT/CN2020/083608 2020-04-07 2020-04-07 Procédé, appareil et dispositif de transmission de données, et support de stockage lisible par ordinateur WO2021203253A1 (fr)

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CN202080000669.4A CN113767669A (zh) 2020-04-07 2020-04-07 数据的传输方法、装置、设备及计算机可读存储介质
PCT/CN2020/083608 WO2021203253A1 (fr) 2020-04-07 2020-04-07 Procédé, appareil et dispositif de transmission de données, et support de stockage lisible par ordinateur

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WO2020063577A1 (fr) * 2018-09-26 2020-04-02 JRD Communication (Shenzhen) Ltd. Partage de support de transmission dans un réseau de communication sans fil

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