WO2022078217A1 - Procédé d'écoute de la porteuse, terminal, dispositif de réseau, appareil et support de stockage - Google Patents

Procédé d'écoute de la porteuse, terminal, dispositif de réseau, appareil et support de stockage Download PDF

Info

Publication number
WO2022078217A1
WO2022078217A1 PCT/CN2021/121698 CN2021121698W WO2022078217A1 WO 2022078217 A1 WO2022078217 A1 WO 2022078217A1 CN 2021121698 W CN2021121698 W CN 2021121698W WO 2022078217 A1 WO2022078217 A1 WO 2022078217A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
transmit
listen
terminal
perform
Prior art date
Application number
PCT/CN2021/121698
Other languages
English (en)
Chinese (zh)
Inventor
朱敏
王俊伟
Original Assignee
大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2022078217A1 publication Critical patent/WO2022078217A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a listen-before-transmit method, a terminal, a network device, an apparatus, and a storage medium.
  • Procedures for channel access in unlicensed frequency bands are specified in the related art.
  • the base station/terminal will perform a short energy detection before channel access to determine whether the channel is occupied by other systems. This process is to listen first. After (Listen Before Talk, LBT).
  • Embodiments of the present disclosure provide a listen-before-transmit method, a terminal, a network device, an apparatus, and a storage medium, so as to solve the technical problem of poor system compatibility in the prior art.
  • an embodiment of the present disclosure provides a listen-before-transmit method, including:
  • Whether to perform listen-before-transmit is determined based on the first indication message.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to measure the channel multiple times.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and the first indication message is a network device. Determined after performing multiple measurements on the channel according to the measurement parameters.
  • the determining whether to perform listen-before-transmit based on the first indication message specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold sent by the network device is received, where the first threshold is determined by the network device based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the first indication message is carried in radio resource control signaling or downlink control information.
  • the measurement parameter further includes a value of a counter, and the length of the statistical time window is determined by the value of the counter.
  • the method after receiving the first indication message sent by the network device, the method further includes:
  • an embodiment of the present disclosure also provides a method for listening before transmitting, including:
  • a first indication message for determining whether to perform listen-before-transmit is sent to the terminal.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to perform multiple measurements on the channel, determine the overall measurement value, and determine the overall measurement value based on the measurement parameters.
  • the overall measure determines whether to perform listen-before-transmit.
  • the first instruction message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and is sent to the terminal for determining whether to perform the first-before-transmit message.
  • the first instruction message transmitted after listening it also includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether the terminal is required to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether the terminal is required to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether the terminal is required to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the first indication message is carried in unlimited resource control signaling or downlink control information.
  • an embodiment of the present disclosure also provides a method for listening before transmitting, including:
  • Determining whether to perform listening before transmitting, and obtaining a determination result, the determination result includes performing and not performing;
  • the listening first and then transmitting are performed; when the determination result is no execution, the listening first and then transmitting are not performed.
  • the determining whether to perform listen-before-transmit specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the method further includes:
  • the determination result is sent to the terminal.
  • an embodiment of the present disclosure also provides a method for listening before transmitting, including:
  • a determination result is received, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor;
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • Whether to perform listen-before-transmit is determined based on the first indication message.
  • the first indication message includes a measurement parameter; the measurement parameter is used to instruct the terminal to measure the channel multiple times.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and the first indication message is a
  • the channel is determined after multiple measurements.
  • the determining whether to perform listen-before-transmit based on the first indication message specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and the number of measurement statistics.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameter is composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold sent by the network device is received, where the first threshold is determined by the network device based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold value, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the first indication message is carried in radio resource control signaling or downlink control information.
  • the measurement parameter further includes a value of a counter, and the length of the statistical time window is determined by the value of the counter.
  • the method after receiving the first indication message sent by the network device, the method further includes:
  • an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor;
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • a first indication message for determining whether to perform listen-before-transmit is sent to the terminal.
  • the first indication message includes a measurement parameter; the measurement parameter is used to instruct the terminal to measure the channel multiple times, determine an overall measurement value, and based on the overall measurement value The measured value determines whether to perform listen-before-transmit.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and is sent to the terminal for determining whether to perform listen-before-transmit.
  • the first indication message it also includes:
  • the channel is measured multiple times according to the measurement parameter to determine the overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel in the statistical time window indicated by the measurement parameter;
  • Whether the terminal is required to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and the number of measurement statistics.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameter is composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether the terminal is required to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether the terminal is required to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the first indication message is carried in wireless resource control signaling or downlink control information.
  • an embodiment of the present disclosure further provides a network device, including a memory, a transceiver, and a processor;
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • Determining whether to perform listening before transmitting, and obtaining a determination result, the determination result includes performing and not performing;
  • the listening first and then transmitting are performed; when the determination result is no execution, the listening first and then transmitting are not performed.
  • the determining whether to perform listen-before-transmit specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the measurement parameters include a measurement time unit, a measurement period, and the number of measurement statistics.
  • the measurement parameter is applicable to all signals to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameter is composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the method further includes:
  • the determination result is sent to the terminal.
  • an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor;
  • a memory for storing a computer program
  • a transceiver for sending and receiving data under the control of the processor
  • a processor for reading the computer program in the memory and performing the following operations:
  • a determination result is received, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • an embodiment of the present disclosure further provides a listen-before-transmit device, including:
  • a first receiving module configured to receive the first indication message sent by the network device
  • a first determining module configured to determine whether to perform listen-before-transmit based on the first indication message.
  • an embodiment of the present disclosure further provides a listening-before-transmitting device, including:
  • a sending module configured to send a first instruction message for determining whether to perform listen-before-transfer to the terminal.
  • an embodiment of the present disclosure further provides a listening-before-transmitting device, including:
  • a second determination module configured to determine whether to perform listening before transmitting, and obtain a determination result, where the determination result includes performing and not performing;
  • the processing module is configured to perform listening first and then transmitting when the determination result is execution; when the determination result is no execution, do not perform listening first and then transmission.
  • an embodiment of the present disclosure further provides a listen-before-transmit device, including:
  • the second receiving module is configured to receive a determination result, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute the first The steps of the listen-before-transmit method described in the aspect, the second aspect, the third aspect or the fourth aspect.
  • the network device/terminal determines whether to execute LBT before sending signal/channel data, so that the execution of LBT is controllable, that is, It overcomes the problem of performing LBT before initiating transmission, which leads to a decrease in the throughput of high-frequency systems, and also overcomes the problem of mutual interference between links in the scenario of multi-node transmission without performing LBT before initiating transmission. Improved system compatibility.
  • FIG. 1 is one of the schematic diagrams of a listen-before-transmit method provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of long-term/multiple channel measurement opportunities provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of threshold levels of long-term/multiple channel measurements provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of a terminal receiving a set of long-term/multiple channel measurement configurations according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a terminal receiving multiple sets of long-term/multiple channel measurement configurations according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of the LBT/No-LBT indication of periodic transmission of PUCCH/PUSCH provided by an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of aperiodic transmission of LBT/No-LBT indication of PUCCH provided by an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of a LBT/No-LBT indication for aperiodic transmission of PUSCH provided by an embodiment of the present disclosure
  • FIG. 9 is a second schematic diagram of a listen-before-transmit method provided by an embodiment of the present disclosure.
  • FIG. 10 is a third schematic diagram of a listen-before-transmit method provided by an embodiment of the present disclosure.
  • FIG. 11 is a fourth schematic diagram of a listening-before-transmitting method provided by an embodiment of the present disclosure.
  • FIG. 12 is one of the schematic structural diagrams of a terminal provided by an embodiment of the present disclosure.
  • FIG. 13 is one of the schematic structural diagrams of a network device provided by an embodiment of the present disclosure.
  • FIG. 14 is a second schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • FIG. 15 is the second schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • 16 is one of the schematic diagrams of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • 17 is the second schematic diagram of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • FIG. 18 is a third schematic diagram of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • FIG. 19 is a fourth schematic diagram of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • Procedures for channel access on unlicensed frequency bands are specified in existing schemes.
  • the base station/terminal will perform a short energy detection before channel access to determine whether the channel is occupied by other systems. This process is called LBT.
  • LBT Low-power Bluetooth
  • the base station performs downlink transmission after uplink transmission. If the time interval between uplink transmission and downlink transmission is less than 16us, the base station may not perform LBT to access the channel.
  • the terminal performs uplink transmission after downlink transmission. If the time interval between uplink transmission and downlink transmission is less than 16us, the terminal may not perform LBT to access the channel.
  • the duration of the corresponding downlink/uplink transmission is at most 584us.
  • both the channel access mode based on the LBT mechanism and the channel access mode based on the non-LBT mechanism are supported.
  • the base station in order to better support the friendly coexistence between different systems, can configure the terminal to perform channel occupancy assessment. The quantized value in is fed back.
  • Idle channel sensing also known as idle channel detection, refers to the process of searching and detecting an idle channel in a wireless communication system shared by multiple channels so as to automatically select the channel. If the base station/terminal performs sensing in the sensing time slot (9us), and the detected energy in the sensing time slot for at least 4us is lower than the set energy detection threshold, it is considered that the channel is in an idle state in the sensing time slot ; otherwise, the channel in the sensing time slot is in a busy state.
  • unlicensed frequency bands for example, high-frequency unlicensed frequency bands of 52.6GHz-71GHz
  • No-Listen-Before-Transmit No-LBT
  • if both the base station/terminal perform LBT before initiating transmission it will Causes the problem of reduced throughput of high-frequency systems; if the base station/terminal does not perform LBT before initiating transmission, the problem of mutual interference between links will occur in the scenario of multi-node transmission.
  • it is configurable whether to perform LBT or not. However, whether or not to perform LBT in the configuration, there will be some problems, and the technical problem of poor compatibility still cannot be solved.
  • the embodiment of the present disclosure proposes a listen-before-transmit method, which determines whether to perform LBT according to long-term/multiple channel measurement results, and further specifies the parameters of the long-term/multiple measurement channel, LBT/No-LBT threshold setting, uplink (UL) ) LBT/No-LBT configuration scheme, and downlink (DL) LBT/No-LBT configuration scheme, in order to improve the system throughput while ensuring the fairness of channel access.
  • FIG. 1 is one of the schematic diagrams of a listen-before-transmit method provided by an embodiment of the present disclosure. As shown in FIG. 1 , a listen-before-transmit method provided by an embodiment of the present disclosure may be executed by a terminal, for example, Smartphone etc. The method includes:
  • Step 101 Receive a first indication message sent by a network device.
  • the embodiments of the present disclosure are directed to uplink signal transmission, for example, a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) signal, a physical uplink control channel (Physical Uplink Control Channel, PUCCH) signal, message (Msg) 1 signal and Msg3 signal, etc., before sending the signal/channel data, the terminal first receives the indication message sent by the network device.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • Msg Physical Uplink Control Channel
  • Msg Msg3 signal
  • the network device in the embodiments of the present disclosure may refer to a base station, or may refer to other network-side devices such as core network elements, and the specific network-side device may be determined according to actual application scenarios.
  • the terminal in the embodiment of the present disclosure may refer to a smart phone, a function machine, a vehicle terminal, an Internet of Things terminal, etc., and the specific terminal may be determined according to an actual application scenario.
  • the indication message is used for the terminal to determine whether to perform LBT.
  • the indication message may be delivered through radio resource control (Radio Resource Control, RRC) signaling, may also be delivered through downlink control information (Downlink Control Information, DCI), or may be delivered in other ways.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • Step 102 Determine whether to perform listen-before-transmit based on the first indication message.
  • the terminal determines whether to perform listen-before-transmit based on the instruction message, and obtains a determination result, where the determination result includes execution and non-execution.
  • the terminal When it is determined that the result is execution, the terminal performs listen-before-transmit; when the determination result is non-execution, the terminal does not perform listen-before-transmit.
  • the terminal can also report the determination result to the network device, so that the network device can determine whether to perform special processing that cannot send signals due to LBT reasons when the network device has not received the UL signal.
  • the indication message may include measurement parameters, and the measurement parameters are used to instruct the terminal to measure the channel multiple times, and determine whether to perform LBT according to the measurement results.
  • the indication message may also be directly used to instruct the terminal to perform LBT or not to perform LBT.
  • the indication message is determined after the network device performs multiple measurements on the channel according to the measurement parameters.
  • the occupancy status of the channel is determined through long-term/multiple channel measurements.
  • the terminal When the channel occupancy rate is low, the terminal does not need to perform LBT before signal transmission, which improves the system throughput and reduces the transmission delay; when the channel occupancy rate is low, the terminal needs to perform LBT for signal transmission, ensuring that multi-system coexistence Fairness of channel access.
  • the terminal determines whether to execute LBT before sending signal/channel data, so that the execution of LBT is controllable.
  • the problem of reduced throughput also overcomes the problem of mutual interference between links in the scenario of multi-node transmission without performing LBT before initiating transmission, thereby improving the compatibility of the system.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to measure the channel multiple times.
  • long-term/multiple measurements are performed by the terminal.
  • the indication message may include measurement parameters, and the measurement parameters are used to instruct the terminal to measure the channel multiple times, and determine whether to perform LBT according to the measurement results.
  • the terminal performs long-term/multiple measurements, which reduces the resource overhead of the network device.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and the first indication message is obtained after the network device performs multiple measurements on the channel according to the measurement parameters. definite.
  • long-term/multiple measurements are performed by the network device.
  • the network device determines whether the terminal needs to perform LBT after measuring the channel for many times according to the measurement parameters.
  • the terminal is instructed to perform LBT or not to perform LBT in the manner of issuing an instruction message.
  • long-term/multiple measurements are performed by the network device, which reduces the resource overhead of the terminal.
  • the determining whether to perform listen-before-transmit based on the first indication message specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • long-term/multiple measurements are performed by the terminal.
  • the specific steps for the terminal to determine whether to perform LBT based on the instruction message sent by the network device are as follows:
  • the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter.
  • the measurement parameters may include measurement time units, measurement periods, and measurement statistics counts.
  • a threshold may be configured or preconfigured by a higher layer, and whether to perform LBT is determined by comparing the relationship between the overall measurement value and the threshold.
  • multiple measurements are performed on the channel to determine an overall measurement value, and then, based on the overall measurement value, it is determined whether to perform LBT, which further improves the reliability of the system.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the long-term/multiple channel measurement mode means that the base station/terminal performs multiple/long-term measurements on a certain channel, and the involved parameters include the measurement time unit T_si, the measurement period T_P, and the number of measurement statistics N (N>1).
  • the measurement parameters (or referred to as "configuration parameters") of long-term/multiple channel measurements may share a set of parameters, or may each have a set of measurement parameters.
  • FIG. 2 is a schematic diagram of long-term/multiple channel measurement timing provided by an embodiment of the present disclosure.
  • the base station/terminal has a signal/channel data x to be transmitted, and the long-term/multiple channel measurement occurs on the signal/channel data x to be transmitted.
  • the time interval between the signal/channel data x to be transmitted and the nearest measurement time slot is the first interval time, and the first interval time needs to meet the time required by the base station/terminal to perform LBT.
  • the statistical time window of the long-term/multi-time channel is the time formed by N measurement time units before the signal to be transmitted, and N is the number of measurement statistics in the above configuration parameters.
  • the measurement time window of the long-term/multi-time channel is the time constituted by M measurement time units before the signal to be transmitted, and the value of M can be configured or pre-configured by a high layer. M is greater than or equal to N.
  • the duration of the measurement time unit T_si supports higher layer configuration or pre-configuration.
  • the base station/terminal can perform measurements such as Clear Channel Assessment (CCA) or energy detection.
  • CCA Clear Channel Assessment
  • the value of the measurement period T_P supports higher layer configuration or pre-configuration.
  • the measurement period T_P refers to the time interval between two measurement time slots T_si.
  • the value of the number of measurement statistics supports high-level configuration or pre-configuration.
  • the statistical time window of the long-term/multi-channel channel is a configurable sliding window, and the number of measurement statistics N refers to the number of measurement time units included in the statistical time window of the long-term/multi-channel channel.
  • the measurement parameters include the measurement time unit, the measurement period, and the number of measurement statistics, which further improves the reliability of the system.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the measurement parameters are applicable to all signals to be transmitted, that is, all signals share a set of measurement parameters, and only one set of measurement parameters is configured in total.
  • the terminal Before the terminal prepares to transmit signal/channel data such as PUSCH/PUCCH/Msg1&Msg3, it performs measurement according to a set of configured parameters of long-term/multiple channel measurement configuration. As shown in table 2.
  • the measurement parameters are applicable to all signals to be transmitted, which reduces the complexity of the system.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the measurement parameter is applicable to a specific signal to be transmitted. That is, certain signals to be transmitted share a set of measurement parameters, and only one set of measurement parameters is configured in total.
  • the specific signal to be transmitted can be configured as required, which is not limited here.
  • the measurement parameters are suitable for specific signals to be transmitted, special processing can be performed for the specific signals to be transmitted, and the reliability of the specific signals to be transmitted can be improved in a targeted manner.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the measurement parameters are composed of multiple groups of parameters, and the parameters of different groups are applicable to different signals to be transmitted. That is, a total of multiple sets (groups) of measurement parameters are configured, and parameters of different groups are applicable to different signals to be transmitted. as shown in Table 3.
  • the high layer configures multiple sets of measurement parameters for the base station/terminal, and the base station/terminal uses the first set (group) of measurement configuration parameters when preparing to transmit periodic signals such as SSB/CSI-RS; the base station/terminal prepares to transmit such as PUCCH/PDCCH/SIBx
  • the second set (group) of measurement configuration parameters is used for signals such as /Msg1&3; the third set (group) of measurement configuration parameters is used when the base station/terminal is ready to transmit other signals.
  • the measurement parameters are composed of multiple groups of parameters, and the parameters of different groups are suitable for different signals to be transmitted, which increases the flexibility of the system.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the base station/terminal obtains the overall measurement value R of the long-term/multiple channels based on energy detection.
  • the channels are measured multiple times according to the measurement parameters, and the specific steps to determine the overall measurement value are as follows:
  • the received signal strength indication value of each measurement in the statistical time window is obtained based on the energy detection.
  • the overall measurement value is determined based on the received signal strength indicator value of each measurement.
  • the RSSI measurement is performed in the measurement time unit, and the average RSSI measurement value within the statistical time window of the long-term/multi-channel channel is calculated as the overall measurement value R.
  • the overall measurement value R of long-term/multiple channel measurements can reflect the channel occupancy in N measurement time units, and its calculation formula is as follows:
  • R is the overall measurement value
  • RSSI n is the RSSI measurement value in the nth measurement time unit
  • a n is the weighting coefficient of the nth T_si, 0 ⁇ a n ⁇ 1, the value of a n can be determined according to the actual situation configuration.
  • the overall measurement value R of the long-term/multiple channels is obtained based on energy detection, which further improves the measurement accuracy.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the base station/terminal obtains the overall measurement value R of the long-term/multiple channels based on idle channel sensing.
  • the channels are measured multiple times according to the measurement parameters, and the specific steps to determine the overall measurement value are as follows:
  • the idle-busy state value of each measurement in the statistical time window is obtained based on idle channel sensing.
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the measurement time unit (or "measurement time slot") is determined to be idle, and recorded as idle; otherwise, the measurement time slot is determined to be busy, and is recorded as busy .
  • the overall measurement value R of long-term/multiple channel measurements can reflect the channel occupancy in N measurement time units, and its calculation formula is as follows:
  • R is the overall measurement value
  • an is the weighting coefficient of the nth T_si , 0 ⁇ an ⁇ 1 , and the value of an can be configured according to the actual situation.
  • a n can also be written as a_n.
  • the overall measurement value R of the long-term/multiple channels is obtained based on idle channel sensing, which further improves the measurement accuracy.
  • the value of the weighting coefficient a_n of the slot is inversely proportional to the time interval; the value of a_n supports high-level configuration or pre-configuration.
  • the time interval between the transmission signal and the measurement slot is not distinguished.
  • the second time interval scheme for distinguishing the transmission signal and the measurement time slot For another example, the second time interval scheme for distinguishing the transmission signal and the measurement time slot.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the specific steps of determining whether to perform LBT based on the overall measurement value are as follows:
  • the first threshold that is, the LBT/No-LBT threshold R_Thresh, refers to a handover condition for whether the base station/terminal performs LBT, and supports high-level configuration or pre-configuration. When it is configured by a higher layer, it can be determined by the base station or by the terminal.
  • whether to perform LBT is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the overall measurement value when the overall measurement value is greater than the first threshold, it is determined to perform LBT; when the overall measurement value is less than or equal to the first threshold, it is determined not to perform LBT.
  • the overall measurement value when the overall measurement value is less than or equal to the first threshold, it is determined to perform LBT; when the overall measurement value is greater than the first threshold, it is determined not to perform LBT.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold sent by the network device is received, where the first threshold is determined by the network device based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the value of the LBT/No-LBT threshold R_Thresh of a signal/channel data to be transmitted is affected by the following parameters:
  • the LBT/No-LBT threshold R_Thresh is determined by the base station.
  • the base station After the base station determines the threshold, it sends the threshold to the terminal, and the terminal receives the threshold.
  • the threshold is determined by the base station based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the base station/terminal determines to perform LBT/No-LBT according to the relationship between the long-term/multiple channel overall measurement value R and the LBT/No-LBT threshold R_Thresh.
  • the terminal/base station When the overall measurement value R of long-term/multiple channel measurements by the base station/terminal is lower than the threshold R_Thresh of LBT/No-LBT, the terminal/base station performs No-LBT;
  • the terminal/base station When the R of the base station/terminal long-term/multiple channel measurement is higher than the threshold R_Thresh of LBT/No-LBT, the terminal/base station performs LBT.
  • the signal/channel data to be transmitted needs to perform LBT.
  • the base station/terminal determines to perform LBT/No-LBT according to the relationship between the long-term/multiple channel overall measurement value R and the LBT/No-LBT threshold R_Thresh.
  • the terminal/base station When the overall measurement value R of long-term/multiple channel measurements by the base station/terminal is higher than the threshold R_Thresh of LBT/No-LBT, the terminal/base station performs No-LBT;
  • the terminal/base station When the R of the long-term/multiple channel measurements of the base station/terminal is lower than the threshold R_Thresh of LBT/No-LBT, the terminal/base station performs LBT.
  • the LBT/No-LBT threshold R_Thresh may have only one value. It can also be divided into N levels according to the size of the value, corresponding to R_T1, R_T2,...,R_TN (R_T1>R_T2,...,R_TN).
  • FIG. 3 is a schematic diagram of the threshold levels of long-term/multiple channel measurements provided by an embodiment of the present disclosure.
  • the LBT/No-LBT thresholds of the signal/channel data to be transmitted configured by the high layer are divided into three levels R_T1, R_T2 , R_T3, corresponding to the thresholds R_Thresh1, R_Thresh2, R_Thresh3 (R_Thresh1>R_Thresh2>R_Thresh3).
  • the LBT/No-LBT threshold R_Thresh of the signal/channel data to be transmitted is determined according to P ⁇ T_duration and the rules configured/pre-configured by the high layer.
  • the embodiments of the present disclosure determine the threshold of LBT/No-LBT based on the transmission characteristics of each signal when determining LBT/No-LBT, which enhances the adaptability of the scheme to signals with different transmission characteristics.
  • the LBT/No-LBT threshold R_Thresh is determined by the network device, which reduces the resource overhead of the terminal.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the value of the LBT/No-LBT threshold R_Thresh of a signal/channel data to be transmitted is affected by the following parameters:
  • the LBT/No-LBT threshold R_Thresh is determined by the terminal.
  • the change trend between the transmission power and/or the transmission duration and the first threshold, and the division of the threshold levels are the same as in the above-mentioned embodiment, and are not repeated here.
  • the LBT/No-LBT threshold R_Thresh is determined by the terminal, which reduces the resource overhead of the network device.
  • the first indication message is carried in radio resource control signaling or downlink control information.
  • the base station can notify the terminal whether long-term/multiple channel measurements need to be performed through the 1-bit information field in the RRC signaling. If it is indicated that long-term/multiple channel measurements are required, the terminal uses UL LBT/No-LBT mode 1 determines LBT/No-LBT; if it is indicated that long-term/multiple channel measurements are not required, the terminal adopts UL LBT/No-LBT mode 2 to determine LBT/No-LBT.
  • Mode 1 The terminal performs long-term/multiple channel measurements.
  • the terminal performs long-term/multiple channel measurement
  • the base station configures long-term/multiple channel measurement parameters for the terminal.
  • the involved parameters include the measurement time unit T_si, the measurement period T_P, the number of measurement statistics N (N>1) and the threshold setting. Supports configuring one or more sets of measurement parameter configurations to the terminal.
  • the terminal receives a set of long-term/multiple channel measurement configuration, it performs long-term/multiple channel measurement according to the configuration;
  • the terminal receives multiple sets of long-term/multiple channel measurement configurations, the terminal selects one set of parameters to perform long-term/multiple channel measurement according to preference. When the preference is changed, the measurement parameters used can be switched by themselves.
  • the terminal receives a set of long-term/multiple channel measurement configurations.
  • FIG. 4 is a schematic flowchart of a terminal receiving a set of long-term/multiple channel measurement configurations provided by an embodiment of the present disclosure. As shown in FIG. 4 , the configuration process includes the following steps:
  • Step 2 After the terminal receives the configuration of the RRC signaling, it executes long-term/multiple channels according to the parameters of the configured measurement time unit T_si and measurement period T_P.
  • the terminal receives multiple sets of long-term/multiple channel measurement configurations.
  • FIG. 5 is a schematic flowchart of a terminal receiving multiple sets of long-term/multiple channel measurement configurations provided by an embodiment of the present disclosure. As shown in FIG. 5 , the configuration process includes the following steps:
  • Step 1 The base station can configure multiple sets of long-term/multiple channel measurement time units T_si, measurement period T_P, and measurement statistics times N for the terminal through RRC signaling, as shown in Table 4.
  • Step 2 After receiving the configuration of the RRC signaling, the receiving terminal selects the measurement parameters of the long-term/multiple channel measurement and the long-term/multiple channel measurement according to the expected state to perform the measurement.
  • the terminal When the terminal is about to perform a random access operation, it selects the configuration parameter of sequence number 2 to perform measurement; when it is about to perform PUSCH transmission, it selects the configuration parameter of sequence number 1 to perform measurement.
  • the terminal side can select different measurement configurations to perform long-term/multiple channel measurements according to its own needs.
  • Mode 2 The network device performs long-term/multiple channel measurements.
  • the base station performs long-term/multiple channel measurements for the terminal, and the base station may instruct the terminal to perform LBT/No-LBT through RRC signaling or DCI.
  • the base station may instruct the terminal to perform LBT/No-LBT within the transmission period through RRC signaling. After the terminal receives the instruction of the base station, the terminal takes the LBT/No-LBT operation before periodically sending the transmission signal until a new instruction is received.
  • the base station may instruct the terminal to perform LBT/No-LBT through DCI. After the terminal receives the base station instruction, the terminal adopts LBT/No-LBT before sending the transmitted signal.
  • PUCCH/PUSCH is periodically transmitted.
  • FIG. 6 is a schematic flowchart of the LBT/No-LBT indication of periodic transmission of PUCCH/PUSCH provided by an embodiment of the present disclosure.
  • the base station can indicate the terminal through the LBT/No-LBT indication field in the RRC signaling. Whether to perform LBT before sending the signal to be transmitted.
  • the terminal receives and executes LBT, it executes the LBT operation before each PUCCH/PUSCH transmission;
  • the terminal receives and performs No-LBT, it does not perform the LBT operation before each PUCCH/PUSCH transmission;
  • the terminal If the terminal receives a new RRC indication, it operates according to the new indication.
  • the PUCCH is transmitted aperiodically.
  • FIG. 7 is a schematic flowchart of the LBT/No-LBT indication of aperiodic transmission of PUCCH provided by an embodiment of the present disclosure.
  • the base station can indicate the terminal to Whether to perform LBT before sending the signal to be transmitted.
  • the terminal receives and executes LBT, it executes the LBT operation before sending the PUCCH;
  • the terminal If the terminal receives to perform No-LBT, it does not perform LBT operation before PUCCH transmission.
  • the PUSCH is transmitted aperiodically.
  • FIG. 8 is a schematic flowchart of the LBT/No-LBT indication for aperiodic transmission of PUSCH provided by an embodiment of the present disclosure.
  • the base station can indicate the terminal through the LBT/No-LBT indication field of DCI 0_0 or 0_1 Whether to perform LBT before sending the signal to be transmitted.
  • the terminal If the terminal receives and executes LBT, it executes the LBT operation before sending the PUSCH;
  • the terminal If the terminal receives and performs No-LBT, it does not perform the LBT operation before sending the PUSCH.
  • the first indication message is carried in the radio resource control signaling or downlink control information, which further reduces the complexity of the system.
  • the measurement parameter further includes a value of a counter, and the length of the statistical time window is determined by the value of the counter.
  • Implicit notification When the base station configures the measurement parameters to the terminal, the value of the long-term/multiple channel measurement measurement timer is included. When the timer becomes 0, the terminal stops performing long-term/multiple channel measurements.
  • the base station informs the terminal through RRC signaling that it does not need to perform long-term/multiple channel measurements.
  • the measurement parameter further includes the value of the counter, and the length of the statistical time window is determined by the value of the counter.
  • the length of the measurement time window is greater than or equal to the length of the statistical time window.
  • the length of the measurement time window can be determined by the value of the timer. After the length of the measurement time window is determined, that is, The value range of the length of the statistical time window can be determined.
  • the measurement duration is determined by means of implicit notification, which further reduces the overhead of system resources.
  • the method after receiving the first indication message sent by the network device, the method further includes:
  • Implicit notification When the base station configures the measurement parameters to the terminal, the value of the long-term/multiple channel measurement measurement timer is included. When the timer becomes 0, the terminal stops performing long-term/multiple channel measurements.
  • the base station informs the terminal through RRC signaling that it does not need to perform long-term/multiple channel measurements.
  • the terminal after the terminal receives the first indication message sent by the network device, it further includes: receiving a second indication message sent by the network device, where the second indication message is used to instruct the terminal to stop monitoring the channel Perform multiple measurements, and the length of the statistical time window is determined by the time difference between the terminal receiving the first indication message and the second indication message.
  • the base station configures the long-term/multi-time channel measurement measurement parameters to the terminal
  • the information of the long-term/multi-time channel measurement measurement timer is not included.
  • the base station indicates through RRC signaling that the terminal does not need to perform long-term/multiple channel measurements. After receiving the indication information, the terminal stops performing the measurement.
  • the measurement duration is determined by means of implicit notification, which further reduces the overhead of system resources.
  • FIG. 9 is the second schematic diagram of a listen-before-transmit method provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a listen-before-transmit method, the execution subject of which may be a network device, for example, base station, etc.
  • the method includes:
  • Step 901 Send a first indication message to the terminal for determining whether to perform listen-before-transmit.
  • the terminal of the present disclosure first receives the indication message sent by the network device before sending the signal/channel data.
  • the indication message is used for the terminal to determine whether to perform LBT.
  • the indication message may be delivered through RRC signaling, may also be delivered through DCI, or may be delivered in other ways.
  • the terminal After receiving the instruction message sent by the network device, the terminal determines whether to perform listen-before-transmit based on the instruction message, and obtains a determination result, where the determination result includes execution and non-execution.
  • the terminal When it is determined that the result is execution, the terminal performs listen-before-transmit; when the determination result is non-execution, the terminal does not perform listen-before-transmit.
  • the terminal may also report the determination result to the network device, and the network device receives the determination result, so as to determine whether to perform special processing that the signal cannot be sent due to LBT reasons when the UL signal is not received.
  • the indication message may include measurement parameters, and the measurement parameters are used to instruct the terminal to measure the channel multiple times, and determine whether to perform LBT according to the measurement results.
  • the indication message may also be directly used to instruct the terminal to perform LBT or not to perform LBT.
  • the indication message is determined after the network device performs multiple measurements on the channel according to the measurement parameters.
  • the occupancy status of the channel is determined through long-term/multiple channel measurements.
  • the terminal When the channel occupancy rate is low, the terminal does not need to perform LBT before signal transmission, which improves the system throughput and reduces the transmission delay; when the channel occupancy rate is low, the terminal needs to perform LBT for signal transmission, ensuring that multi-system coexistence Fairness of channel access.
  • the terminal determines whether to execute LBT before sending signal/channel data, so that the execution of LBT is controllable.
  • the problem of reduced throughput also overcomes the problem of mutual interference between links in the scenario of multi-node transmission without performing LBT before initiating transmission, thereby improving the compatibility of the system.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to perform multiple measurements on the channel, determine an overall measurement value, and determine whether to perform a first listen based on the overall measurement value posthumous.
  • long-term/multiple measurements are performed by the terminal.
  • the indication message may include measurement parameters, and the measurement parameters are used to instruct the terminal to measure the channel multiple times, and determine whether to perform LBT according to the measurement results.
  • the terminal performs long-term/multiple measurements, which reduces the resource overhead of the network device.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and before sending the first instruction message for determining whether to perform listen-before-transmit to the terminal, Also includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether the terminal is required to perform listen-before-transmit is determined based on the overall measurement value.
  • long-term/multiple measurements are performed by the network device.
  • the network device determines whether the terminal needs to perform LBT after measuring the channel for many times according to the measurement parameters.
  • the terminal is instructed to perform LBT or not to perform LBT in the manner of issuing an instruction message.
  • long-term/multiple measurements are performed by the network device, which reduces the resource overhead of the terminal.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the determining whether the terminal is required to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether the terminal is required to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • the first indication message is carried in the Infinite Resource Control signaling or downlink control information.
  • a listening-before-transmitting method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • FIG. 10 is a third schematic diagram of a listen-before-transmit method provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a listen-before-transmit method, the execution subject of which may be a network device, for example, base station, etc.
  • the method includes:
  • Step 1001 Determine whether to perform listen-before-transmit, and obtain a determination result, where the determination result includes execution and non-execution.
  • the embodiments of the present disclosure are directed to downlink signal transmission, for example, synchronization signal block (synchronization signal block, SSB)/channel state information reference signal (Channel State Information-Reference Signal, CSI-RS)/physical downlink control channel (Physical Downlink Control Channel, PDCCH)/Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) and other signal/channel data.
  • synchronization signal block synchronization signal block
  • CSI-RS Channel State Information-Reference Signal
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • the network device Before sending the signal/channel data, the network device first determines whether to perform listen-before-transmit, and obtains a determination result, where the determination result includes execution and non-execution.
  • the network device in the embodiments of the present disclosure may refer to a base station, or may refer to other network-side devices such as core network elements, and the specific network-side device may be determined according to actual application scenarios.
  • Step 1002 When the determination result is execution, perform listening first and then transmit; when the determination result is no execution, do not perform listening before transmission.
  • the network device when the determination result is execution, the network device performs listen-before-transmit; when the determination result is non-execution, the network device does not perform listen-before-transmit.
  • the occupancy status of the channel is determined through long-term/multiple channel measurements.
  • the network equipment does not need to perform LBT before signal transmission, which improves the system throughput and reduces the transmission delay;
  • the channel occupancy rate is low, the network equipment needs to perform LBT for signal transmission, ensuring multi-system Coexistence is the fairness of channel access.
  • the network device determines whether to perform LBT before sending signal/channel data, so that the execution of LBT is controllable, which not only overcomes the high frequency caused by performing LBT before initiating transmission
  • the problem of decreased system throughput also overcomes the problem of mutual interference between links in the scenario of multi-node transmission without performing LBT before initiating transmission, thereby improving the compatibility of the system.
  • the determining whether to perform listen-before-transmit specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the measurement parameters are applicable to all signals to be transmitted.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect, the difference is only that the uplink and downlink categories of the transmitted signals are different.
  • the same parts and beneficial effects in this embodiment as those of the above-mentioned corresponding method embodiments will not be described in detail here.
  • the method further includes:
  • the determination result is sent to the terminal.
  • the network device may also deliver the determination result to the terminal, and the specific manner of delivering the determination result to the terminal may be delivered through RRC/DCI signaling.
  • the terminal After receiving the determination result, when the terminal has not received the DL signal, it may determine whether to perform special processing that the signal cannot be sent due to the LBT reason.
  • the terminal needs to measure the difference between the CSI-RS signal that is not successfully received due to interference and the base station not sending the signal.
  • a listen-before-transmit method provided by an embodiment of the present disclosure is the same as the method described in the above-mentioned corresponding embodiments, and can achieve the same technical effect.
  • the same parts and beneficial effects as the above-mentioned corresponding method embodiments will be described in detail.
  • FIG. 11 is a fourth schematic diagram of a listen-before-transmit method provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a listen-before-transmit method, the execution subject of which is a terminal, for example, a smart phone etc., the method includes:
  • Step 1101 Receive a determination result, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • the embodiments of the present disclosure are directed to downlink signal transmission, for example, signal/channel data such as SSB/CSI-RS/PDCCH/PDSCH.
  • the network device Before sending the signal/channel data, the network device first determines whether to perform listen-before-transmit, and obtains a determination result, where the determination result includes execution and non-execution.
  • the network device in the embodiments of the present disclosure may refer to a base station, or may refer to other network-side devices such as core network elements, and the specific network-side device may be determined according to actual application scenarios.
  • the network device When the determination result is execution, the network device performs listen-before-transmit; when the determination result is non-execution, the network device does not perform listen-before-transmit.
  • the base station After the base station obtains the determination result, it delivers the determination result to the terminal, and the specific manner of delivering the determination result to the terminal may be delivered through RRC/DCI signaling.
  • the terminal After receiving the determination result, when the terminal has not received the DL signal, it can determine whether it needs to perform special processing that the signal cannot be sent due to LBT.
  • the terminal needs to measure the difference between the CSI-RS signal that is not successfully received due to interference and the base station not sending the signal.
  • the occupancy status of the channel is determined through long-term/multiple channel measurements.
  • the network equipment does not need to perform LBT before signal transmission, which improves the system throughput and reduces the transmission delay;
  • the channel occupancy rate is low, the network equipment needs to perform LBT for signal transmission, ensuring multi-system Coexistence is the fairness of channel access.
  • the network device determines whether to perform LBT before sending signal/channel data, so that the execution of LBT is controllable, which not only overcomes the high frequency caused by performing LBT before initiating transmission
  • the problem of decreased system throughput also overcomes the problem of mutual interference between links in the scenario of multi-node transmission without performing LBT before initiating transmission, thereby improving the compatibility of the system.
  • FIG. 12 is one of the schematic structural diagrams of a terminal provided by an embodiment of the present disclosure. As shown in FIG. 12 , the terminal includes a memory 1220, a transceiver 1200, and a processor 1210:
  • the memory 1220 is used to store computer programs; the transceiver 1200 is used to send and receive data under the control of the processor 1210; the processor 1210 is used to read the computer program in the memory 1220 and perform the following operations:
  • Whether to perform listen-before-transmit is determined based on the first indication message.
  • the transceiver 1200 is used to receive and transmit data under the control of the processor 1210 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1210 and various circuits of memory represented by memory 1220 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1200 may be a number of elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like Transmission medium.
  • the user interface 1230 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes, but is not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1210 in performing operations.
  • the processor 1210 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field-Programmable Gate Array, a field programmable gate array) or a CPLD (Complex Programmable Logic Device, Complex Programmable Logic Device), the processor can also use a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device, Complex Programmable Logic Device
  • the processor is configured to execute any one of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by invoking the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to measure the channel multiple times.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and the first indication message is obtained after the network device performs multiple measurements on the channel according to the measurement parameters. definite.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the determining whether to perform listen-before-transmit based on the first indication message specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold sent by the network device is received, where the first threshold is determined by the network device based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the first indication message is carried in radio resource control signaling or downlink control information.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the measurement parameter further includes a value of a counter, and the length of the statistical time window is determined by the value of the counter.
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • the method after receiving the first indication message sent by the network device, the method further includes:
  • the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect.
  • the beneficial effects are described in detail.
  • FIG. 13 is one of the schematic structural diagrams of a network device provided by an embodiment of the present disclosure.
  • the network device includes a memory 1320, a transceiver 1300, and a processor 1310:
  • the memory 1320 is used to store computer programs; the transceiver 1300 is used to send and receive data under the control of the processor 1310; the processor 1310 is used to read the computer program in the memory 1320 and perform the following operations:
  • a first indication message for determining whether to perform listen-before-transmit is sent to the terminal.
  • the transceiver 1300 is used to receive and transmit data under the control of the processor 1310 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1310 and various circuits of memory represented by memory 1320 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1300 may be multiple elements, ie, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1310 in performing operations.
  • the processor 1310 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also use a multi-core architecture.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to perform multiple measurements on the channel, determine an overall measurement value, and determine whether to perform a first listen based on the overall measurement value posthumous.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and before sending the first instruction message for determining whether to perform listen-before-transmit to the terminal, Also includes:
  • the channel is measured multiple times according to the measurement parameter to determine the overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel in the statistical time window indicated by the measurement parameter;
  • Whether the terminal is required to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically including:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect, and the same part as the method embodiment in this embodiment will not be described here. And the beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the determining whether the terminal is required to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether the terminal is required to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the first indication message is carried in the Infinite Resource Control signaling or downlink control information.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • FIG. 14 is a second schematic structural diagram of a network device provided by an embodiment of the present disclosure.
  • the network device includes a memory 1420, a transceiver 1400, and a processor 1410:
  • the memory 1420 is used to store computer programs; the transceiver 1400 is used to send and receive data under the control of the processor 1410; the processor 1410 is used to read the computer programs in the memory 1420 and perform the following operations:
  • Determining whether to perform listening before transmitting, and obtaining a determination result, the determination result includes performing and not performing;
  • the listening first and then transmitting are performed; when the determination result is no execution, the listening first and then transmitting are not performed.
  • the transceiver 1400 is used to receive and transmit data under the control of the processor 1410 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1410 and various circuits of memory represented by memory 1420 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1400 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like.
  • the processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1410 in performing operations.
  • the processor 1410 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also use a multi-core architecture.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the determining whether to perform listen-before-transmit specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect, and the same part as the method embodiment in this embodiment will not be described here. And the beneficial effects will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect. And the beneficial effects will be described in detail.
  • the method further includes:
  • the determination result is sent to the terminal.
  • the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment, and can achieve the same technical effect, and the same part as the method embodiment in this embodiment will not be described here. And the beneficial effects will be described in detail.
  • FIG. 15 is the second schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in FIG. 15 , the terminal includes a memory 1520, a transceiver 1500, and a processor 1510:
  • the memory 1520 is used to store computer programs; the transceiver 1500 is used to send and receive data under the control of the processor 1510; the processor 1510 is used to read the computer programs in the memory 1520 and perform the following operations:
  • a determination result is received, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • the transceiver 1500 is used to receive and transmit data under the control of the processor 1510 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1510 and various circuits of memory represented by memory 1520 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1500 may be a number of elements, including a transmitter and a receiver, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like Transmission medium.
  • the user interface 1530 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1510 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1510 in performing operations.
  • the processor 1510 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field-Programmable Gate Array, a field programmable gate array) or a CPLD (Complex Programmable Logic Device, Complex Programmable Logic Device), the processor can also use a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device, Complex Programmable Logic Device
  • the processor is configured to execute any one of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by invoking the computer program stored in the memory.
  • the processor and memory may also be physically separated.
  • Figure 16 is one of the schematic diagrams of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • the listen-before-transmit device includes a first receiving module 1601 and a first determining module 1602, wherein:
  • the first receiving module 1601 is configured to receive the first indication message sent by the network device; the first determining module 1602 is configured to determine whether to perform listen-before-transmit based on the first indication message.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to measure the channel multiple times.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and the first indication message is obtained after the network device performs multiple measurements on the channel according to the measurement parameters. definite.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the determining whether to perform listen-before-transmit based on the first indication message specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold sent by the network device is received, where the first threshold is determined by the network device based on the transmission power and/or the transmission duration of the signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the first indication message is carried in radio resource control signaling or downlink control information.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameter further includes a value of a counter, and the length of the statistical time window is determined by the value of the counter.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the method after receiving the first indication message sent by the network device, the method further includes:
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • FIG. 17 is the second schematic diagram of a listen-before-transmit apparatus provided by an embodiment of the present disclosure.
  • the listen-before-transmit apparatus includes a sending module 1701, which is configured to send a message to a terminal for determining whether to perform a listen-before-transmission device. The first instruction message transmitted later.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the first indication message includes measurement parameters; the measurement parameters are used to instruct the terminal to perform multiple measurements on the channel, determine an overall measurement value, and determine whether to perform a first listen based on the overall measurement value posthumous.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the first indication message is used to instruct the terminal to perform listen-before-transmit or not to perform listen-before-transmit, and before sending the first instruction message for determining whether to perform listen-before-transmit to the terminal, Also includes:
  • the overall measurement value is used to represent the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether the terminal is required to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the determining whether the terminal is required to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether the terminal is required to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the first indication message is carried in the Infinite Resource Control signaling or downlink control information.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • FIG. 18 is a third schematic diagram of a listen-before-transmit device provided by an embodiment of the present disclosure. As shown in FIG. 18 , the listen-before-transmit device includes a second determination module 1801 and a processing module 1801, wherein:
  • the second determining module 1801 is configured to determine whether to perform listening first and then transmitting, and obtain a determination result, the determination result includes performing and not performing; the processing module 1802 is configured to perform listening first and then transmitting when the determination result is performing; When the result of the determination is not to execute, then the listen-before-transmit is not executed.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the determining whether to perform listen-before-transmit specifically includes:
  • the measurement parameter Perform multiple measurements on the channel according to the measurement parameter to determine an overall measurement value; the overall measurement value is used to characterize the occupancy level of the channel within the statistical time window indicated by the measurement parameter;
  • Whether to perform listen-before-transmit is determined based on the overall measurement value.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters include a measurement time unit, a measurement period, and a measurement statistics count.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are applicable to all signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the measurement parameter is applicable to a specific signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the measurement parameters are composed of multiple groups of parameters, and parameters of different groups are applicable to different signals to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined from the received signal strength indicator value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the performing multiple measurements on the channel according to the measurement parameters to determine the overall measurement value specifically includes:
  • the overall measurement value is determined based on the busy state value of each measurement.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • the determining whether to perform listen-before-transmit based on the overall measurement value specifically includes:
  • Whether to perform listen-before-transmit is determined according to the magnitude relationship between the overall measurement value and the first threshold.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the method before the determining the magnitude relationship between the overall measurement value and the first threshold, the method further includes:
  • the first threshold is determined based on the transmit power and/or the transmit duration of the signal to be transmitted.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • the method further includes:
  • the determination result is sent to the terminal.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and the details of this embodiment and the method embodiments will not be discussed here. The same parts and beneficial effects will be described in detail.
  • FIG. 19 is a fourth schematic diagram of a listen-before-transmit device provided by an embodiment of the present disclosure.
  • the listen-before-transmit device includes a second receiving module 1901 for receiving a determination result, the determination result It is used to indicate whether the network device executes the listen-before-transmit method; and the determination result is obtained after the network device determines whether to execute the listen-before-transmit method.
  • the above-mentioned listening-before-transmitting device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, and will not be discussed in this embodiment with the method embodiments. The same parts and beneficial effects will be described in detail.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solutions of the present disclosure essentially or the parts that contribute to the prior art, or all or part of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • an embodiment of the present disclosure further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the foregoing implementations
  • Examples of methods provided include:
  • Whether to perform listen-before-transmit is determined based on the first indication message.
  • a first indication message for determining whether to perform listen-before-transmit is sent to the terminal.
  • Determining whether to perform listening before transmitting, and obtaining a determination result, the determination result includes performing and not performing;
  • the listening first and then transmitting are performed; when the determination result is no execution, the listening first and then transmitting are not performed.
  • a determination result is received, where the determination result is used to indicate whether the network device performs the listen-before-transmit method; and the determination result is obtained after the network device determines whether to perform the listen-before-transmit method.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.) , optical memory (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)) and the like.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical memory such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)
  • the term "and/or" in the embodiments of the present disclosure describes the association relationship of associated objects, and indicates that three kinds of relationships may exist.
  • a and/or B may indicate that A exists alone and A exists at the same time. and B, there are three cases of B alone.
  • the character "/" generally indicates that the associated objects are an "or" relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • applicable systems may be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, Long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA Wideband Code Division Multiple Access
  • general packet Wireless service general packet Radio service
  • GPRS general packet Wireless service
  • LTE long term evolution
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • LTE-A Long term evolution advanced
  • UMTS universal mobile
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
  • the name of the terminal device may be different.
  • the terminal device may be called user equipment (User Equipment, UE).
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN).
  • RAN Radio Access Network
  • "telephone) and computers with mobile terminal equipment eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiments of the present disclosure may be a base station, and the base station may include a plurality of cells providing services for the terminal.
  • the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the network device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • the network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA). ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), or Home evolved Node B (HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present disclosure.
  • a network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.
  • MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO, MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

Landscapes

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

Abstract

Des modes de réalisation de la présente divulgation concernent un procédé d'écoute de la porteuse (LBT), un terminal, un dispositif de réseau, un appareil et un support de stockage. Le procédé comprend les étapes consistant à : recevoir un premier message d'indication envoyé par un dispositif de réseau ; et déterminer, sur la base du premier message d'indication, s'il faut effectuer une LBT. Selon le procédé LBT, le terminal, le dispositif de réseau, l'appareil, et le support de stockage décrits dans les modes de réalisation de la présente divulgation, le dispositif/terminal de réseau détermine s'il faut exécuter une LBT avant d'envoyer des données de signal/canal pour provoquer la commande de l'exécution de LBT, de telle sorte que non seulement le problème de diminution du débit d'un système à haute fréquence provoqué par l'exécution systématique d'une LBT avant le lancement de la transmission est surmonté, mais le problème de diaphonie entre des liaisons dans le scénario de transmission multi-nœuds provoqué par la non-exécution systématique d'une LBT avant le lancement de la transmission est également surmonté, ce qui permet d'améliorer la compatibilité du système.
PCT/CN2021/121698 2020-10-15 2021-09-29 Procédé d'écoute de la porteuse, terminal, dispositif de réseau, appareil et support de stockage WO2022078217A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011105753.0A CN114374998A (zh) 2020-10-15 2020-10-15 先听后传方法、终端、网络设备、装置及存储介质
CN202011105753.0 2020-10-15

Publications (1)

Publication Number Publication Date
WO2022078217A1 true WO2022078217A1 (fr) 2022-04-21

Family

ID=81138013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/121698 WO2022078217A1 (fr) 2020-10-15 2021-09-29 Procédé d'écoute de la porteuse, terminal, dispositif de réseau, appareil et support de stockage

Country Status (2)

Country Link
CN (1) CN114374998A (fr)
WO (1) WO2022078217A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116996188A (zh) * 2022-04-25 2023-11-03 华为技术有限公司 一种邻区测量方法及通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104994591A (zh) * 2015-07-08 2015-10-21 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和基站
WO2017201654A1 (fr) * 2016-05-23 2017-11-30 华为技术有限公司 Procédé de transmission de données, dispositif de réseau et dispositif de terminal
EP3509380A1 (fr) * 2014-12-25 2019-07-10 Nec Corporation Terminal radio, station radio, et procédé ainsi mis en uvre
CN110062464A (zh) * 2018-01-19 2019-07-26 华为技术有限公司 用于管理非授权频段的信道占用时长的方法和设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11240840B2 (en) * 2017-02-08 2022-02-01 Sony Group Corporation Media access control
CN110138530B (zh) * 2018-02-09 2021-10-26 展讯通信（上海）有限公司 未授权频谱中基于波束的传输方法、装置及基站
US10624126B2 (en) * 2018-02-16 2020-04-14 At&T Intellectual Property I, L.P. Close loop listen before talk to NR operation in unlicensed spectrum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3509380A1 (fr) * 2014-12-25 2019-07-10 Nec Corporation Terminal radio, station radio, et procédé ainsi mis en uvre
CN104994591A (zh) * 2015-07-08 2015-10-21 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和基站
WO2017201654A1 (fr) * 2016-05-23 2017-11-30 华为技术有限公司 Procédé de transmission de données, dispositif de réseau et dispositif de terminal
CN110062464A (zh) * 2018-01-19 2019-07-26 华为技术有限公司 用于管理非授权频段的信道占用时长的方法和设备

Also Published As

Publication number Publication date
CN114374998A (zh) 2022-04-19

Similar Documents

Publication Publication Date Title
US10251081B2 (en) Method and radio node for handling CSI reporting
US11064492B2 (en) Resource configuration method and apparatus
EP4195852A1 (fr) Procédé de communication, équipement d'utilisateur, dispositif de réseau et support de stockage lisible par ordinateur
TW201902156A (zh) 涉及無線通信網絡中的通道狀態資訊報告的方法和裝置
US20210014736A1 (en) Communication method, communications apparatus, and system
WO2020248101A1 (fr) Procédé de rapport de csi et dispositif terminal
WO2023051203A1 (fr) Procédé de mesure de faisceau, procédé de configuration de mesure et appareil, terminal ainsi que dispositif de réseau
WO2019134570A1 (fr) Procédé de mesure d'informations d'état de canal, dispositif terminal, et dispositif de réseau
WO2022028578A1 (fr) Procédé de transmission de signal, terminal et dispositif de réseau
WO2021056460A1 (fr) Procédé et appareil de gestion de mesure, et dispositif de communication
WO2022078217A1 (fr) Procédé d'écoute de la porteuse, terminal, dispositif de réseau, appareil et support de stockage
TWI803150B (zh) 信號傳輸方法、裝置、終端設備、網路設備及存儲介質
WO2022028501A1 (fr) Procédé et appareil de transmission de signal, et support de stockage
WO2022152091A1 (fr) Procédé et appareil d'indication de motif de signal de référence de démodulation (dmrs) et support de stockage
CN115696257A (zh) 一种信息处理方法、装置、终端设备及网络设备
CN114759964A (zh) 一种信息处理方法、装置及网络侧设备
WO2024032396A1 (fr) Procédé et appareil de communication
TWI828514B (zh) Pusch傳輸方法、裝置及存儲介質
WO2022152317A1 (fr) Procédé et appareil de traitement d'informations, terminal et dispositif de réseau
WO2022206357A1 (fr) Procédé et appareil de détection de ressource et support de stockage
WO2023078429A1 (fr) Procédé et appareil de détermination de puissance de transmission de srs, dispositif, et support de stockage
WO2024032648A1 (fr) Procédé de commande de puissance pour prs-sl, et terminal, dispositif côté réseau, appareil et support de stockage
WO2022152052A1 (fr) Procédé et appareil de transmission de pdcch, terminal et dispositif côté réseau
US20240188029A1 (en) Reference signal transmission position indication determining method and apparatus
WO2024032719A1 (fr) Procédé de rapport de csi, terminal, dispositif réseau, appareil et support de stockage

Legal Events

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

Ref document number: 21879263

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21879263

Country of ref document: EP

Kind code of ref document: A1