WO2021097632A1 - 能量检测门限值的确定方法及装置 - Google Patents

能量检测门限值的确定方法及装置 Download PDF

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Publication number
WO2021097632A1
WO2021097632A1 PCT/CN2019/119294 CN2019119294W WO2021097632A1 WO 2021097632 A1 WO2021097632 A1 WO 2021097632A1 CN 2019119294 W CN2019119294 W CN 2019119294W WO 2021097632 A1 WO2021097632 A1 WO 2021097632A1
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WIPO (PCT)
Prior art keywords
threshold
information
threshold value
symbol
uplink transmission
Prior art date
Application number
PCT/CN2019/119294
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English (en)
French (fr)
Inventor
张治�
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to KR1020227017311A priority Critical patent/KR20220103117A/ko
Priority to EP19952970.2A priority patent/EP4048015A4/en
Priority to BR112022009652A priority patent/BR112022009652A2/pt
Priority to AU2019474941A priority patent/AU2019474941A1/en
Priority to CN202210579294.2A priority patent/CN114980354A/zh
Priority to CN201980100125.2A priority patent/CN114342545A/zh
Priority to JP2022528353A priority patent/JP2023508835A/ja
Priority to PCT/CN2019/119294 priority patent/WO2021097632A1/zh
Priority to CA3158889A priority patent/CA3158889A1/en
Publication of WO2021097632A1 publication Critical patent/WO2021097632A1/zh
Priority to US17/743,453 priority patent/US20220279577A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information

Definitions

  • This application relates to the field of wireless communication, and in particular to a method and device for determining an energy detection threshold.
  • LAA License Assisted Access
  • the LBT mechanism is used for the communication equipment (such as a terminal) in the communication system to listen to the channel to determine the idle and busy status of the channel before each communication system accesses the channel on the unlicensed spectrum.
  • the process of the terminal listening to the channel includes a process of detecting the energy of the carrier on the channel within a short duration (for example, 9 microseconds or 20 microseconds).
  • the energy detection Energy Detection, ED
  • the channel is considered to be idle; on the contrary, when the terminal detects the carrier on the channel When the energy is not less than the ED threshold, the channel is considered to be busy.
  • the base station can configure the ED threshold for the terminal.
  • the embodiments of the present application provide a method and device for determining an ED threshold, which can be used to solve the problem of the method in the related art that the ED threshold actually used by the terminal in the process of listening to the channel cannot be determined.
  • the technical solution is as follows:
  • a method for determining an ED threshold includes:
  • a second ED threshold value is determined, the second ED threshold value is used to perform listen-before-speak LBT before uplink transmission, and the second ED threshold value is equal to or not equal to the first ED threshold value.
  • a method for determining an ED threshold includes:
  • a device for determining an ED threshold includes:
  • a receiving module where the receiving module is configured to receive a first ED threshold configured by a network device;
  • the processing module is used to determine a second ED threshold, the second ED threshold is used to listen before the uplink transmission LBT, the second ED threshold is equal to or not equal to The first ED threshold value.
  • a device for determining an ED threshold value for energy detection includes:
  • a processing module configured to configure a first ED threshold value for the terminal
  • the processing module is configured to determine a second ED threshold, the second ED threshold is used by the terminal to listen and then speak LBT before uplink transmission, and the second ED threshold is equal to or not equal to The first ED threshold value.
  • a terminal in one aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the above-mentioned configuration with the receiving network device. Steps related to an ED threshold.
  • a network device in one aspect, includes a processor and a memory, the memory stores at least one instruction, and the at least one instruction is used to be executed by the processor to implement the above-mentioned configuration and the first ED. Threshold related steps.
  • a computer-readable storage medium is provided, and instructions are stored on the computer-readable storage medium, which are characterized in that, when the instructions are executed by a processor, the steps of any one of the methods in the foregoing aspects are implemented.
  • the network device and the terminal can agree on the actual ED threshold value used by the terminal during LBT, so that the network device can be based on the second ED threshold value.
  • the limit determines the transmission method for transmitting data to the terminal.
  • Fig. 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application
  • Fig. 2 is a flowchart of a method for determining an ED threshold provided by an exemplary embodiment of the present application
  • Fig. 3 is a schematic diagram of a first symbol provided by an exemplary embodiment of the present application.
  • Fig. 4 is a schematic diagram of a first symbol provided by another exemplary embodiment of the present application.
  • Fig. 5 is a schematic diagram of a first symbol provided by another exemplary embodiment of the present application.
  • FIG. 6 is a schematic diagram of a first symbol in a second implementation manner that satisfies the first condition according to an exemplary embodiment of the present application
  • Fig. 7 is a schematic diagram of an uplink control channel and uplink transmission resource transmitted together according to an exemplary embodiment of the present application
  • FIG. 8 is a flowchart of a method for determining an ED threshold value provided by another exemplary embodiment of the present application.
  • FIG. 9 is a flowchart of a method for determining an ED threshold by applying the first determination method according to an exemplary embodiment of the present application.
  • FIG. 10 is a flowchart of a method for determining an ED threshold by applying the second determination method according to an exemplary embodiment of the present application
  • FIG. 11 is a flowchart of a method for determining an ED threshold by applying a third determination method according to an exemplary embodiment of the present application
  • FIG. 12 is a block diagram of a device for determining an ED threshold provided by an embodiment of the present application.
  • FIG. 13 is a block diagram of another device for determining an ED threshold provided by an embodiment of the present application.
  • FIG. 14 is a block diagram of another device for determining an ED threshold provided by an embodiment of the present application.
  • FIG. 15 is a block diagram of another device for determining an ED threshold provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Unlicensed spectrum It is the spectrum that can be used for radio equipment communication divided by the country and region. This spectrum is usually considered to be a shared spectrum. That is, the communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum. The spectrum can be used, and there is no need to apply for a proprietary spectrum authorization from the government.
  • LBT mechanism Refers to the ED that the transmitter needs to perform a period of time on the channel in accordance with regulations before transmitting data to the receiver on the unlicensed spectrum, where the receiver and transmission are communication devices on the unlicensed spectrum. If the result of ED indicates that the channel is idle, the transmitting end can transmit data to the receiving end; if the result of ED indicates that the channel is occupied, the transmitting end needs to back off for a period of time according to the regulations and continue to monitor the channel until it monitors The result is an idle state, and then data is transmitted to the receiving end.
  • the result of ED refers to the relationship between the energy of the carrier on the channel and the ED threshold: when the energy of the carrier on the channel is less than the ED threshold, the channel is considered idle; on the contrary, when the channel When the energy of the upper carrier is not less than the ED threshold, the channel is considered to be in an occupied state.
  • the LBT mechanism may also be referred to as the ED mechanism.
  • Channel Occupancy Time On the unlicensed spectrum, the communication device needs to perform LBT. When the LBT is successful, the communication device obtains a COT for data transmission. In order to ensure fairness, in one transmission, the time that the communication device uses the channel of the unlicensed spectrum for signal transmission cannot exceed the maximum channel occupation time (Maximum Channel Occupancy Time, MCOT).
  • the network equipment network equipment including network side equipment or base station
  • the network equipment can share the COT with the terminal (User Equipment, user equipment) for sending uplink signals or uplink channels.
  • the terminal can use the LBT method with a higher priority than when the terminal tries to obtain the channel by itself, thereby obtaining the right to use the channel with a greater probability.
  • Radio Access Network RAN1
  • the network device can transmit control channels, broadcast channels, and broadcast signals in the shared COT, and in the shared COT, the network device can also transmit control channels, data channels, and reference signals to the terminal.
  • the terminal does not use the ED threshold configured by the network device during the LBT process, the network device can only transmit control channels, broadcast channels, and broadcast signals in the shared COT. It is difficult to imagine that the terminal transmits control channels, data channels, and Reference signal.
  • the time domain length of the signal transmitted by network equipment is also limited. For SubCarrier Spacing (SCS) of 15 kilohertz (kHz), 30kHz, and 60kHz, the length of the signal that can be transmitted cannot exceed 2 symbols respectively. (Symbol), 4 symbols and 8 symbols.
  • SCS SubCarrier Spacing
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD time division duplex
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution system of NR system LTE on unlicensed frequency bands (LTE-based access to unlicensed spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed frequency bands, universal mobile telecommunication system (UMTS), global Connected microwave access (worldwide interoperability for microwave access, WiMAX) communication systems, wireless local area networks (WLAN), wireless fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • the communication system is an NR-U system as an example for illustration.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminals located in the coverage area.
  • the network device 110 may be an evolved network device (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or
  • the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network device in a 5G network, or a network device in a future communication system, etc.
  • the communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110.
  • the "terminal” used here includes, but is not limited to, connection via a wired line, such as via a public switched telephone network (PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another terminal's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN public switched telephone network
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • a terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal can refer to access terminal, user equipment (User Equipment, terminal), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user Device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in 5G networks, or terminals in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminals 120.
  • the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminals.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminals. This embodiment of the present application There is no restriction on this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal 120 with communication functions, and the network device 110 and the terminal 120 may be the specific devices described above, which will not be repeated here; communication
  • the device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the network device configures the terminal's ED threshold for LBT.
  • the actual ED threshold is not the ED threshold configured by the network device, which results in the network device It is difficult to determine whether to use restricted transmission or unrestricted transmission to transmit data to the terminal.
  • restricted transmission refers to the limited data length that the network device can transmit, and the inability to transmit control channels, data channels, and reference signals to the terminal.
  • unrestricted transmission refers to the network device's ability to transmit control channels, data channels, and reference signals.
  • the length of the transmitted data is not limited, and the control channel, data channel, and reference signal can be transmitted to the terminal.
  • FIG. 2 exemplarily shows a method for determining an ED threshold value provided by an embodiment of the present application, and the method may be applied to the terminal 120 in the communication system 100 shown in FIG. 1.
  • the method can include:
  • Step 201 Receive a first ED threshold configured by a network device.
  • Step 202 Determine a second ED threshold, where the second ED threshold is used to perform LBT before uplink transmission, and the second ED threshold is equal to or not equal to the first ED threshold.
  • the second ED threshold value may be an ED threshold value actually used when the terminal performs LBT before uplink transmission.
  • the actual ED threshold value used during LBT before uplink transmission can be determined, so that the network device and the terminal can determine whether the terminal is in LBT time.
  • the actual used ED threshold value is agreed upon, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the network device learns the second ED threshold actually used by the terminal during LBT before uplink transmission based on the same strategy as the terminal.
  • step 201 is an optional step.
  • the network device may configure two ED thresholds for the terminal, that is, the first ED threshold may have two types, one of which is the general maximum ED threshold, and the other One is the ED threshold of the shared COT.
  • the maximum ED threshold refers to the maximum ED threshold among multiple ED thresholds that the terminal can adopt when performing LBT.
  • the maximum ED threshold can be agreed by the communication protocol; the ED threshold of the shared COT
  • the value refers to the ED threshold that enables the terminal and the base station to share the COT.
  • the received first ED threshold configured by the network device may be the maximum ED threshold or the shared COT ED threshold.
  • the second ED threshold value actually used in the LBT before the uplink transmission may be determined to be included, and it is determined whether the second ED threshold value actually used in the LBT before the uplink transmission is the ED that shares the COT. The threshold, or whether it is the maximum ED threshold.
  • the network equipment can also configure other types of ED thresholds for the terminal, which is not restricted by this application.
  • the network device configures the ED threshold value to the terminal through a radio resource control (Radio Resource Control, RRC) parameter, and the ED threshold value may also be expressed as ED_RRC.
  • RRC Radio Resource Control
  • the uplink transmission resource refers to the uplink transmission time domain resource.
  • this embodiment of the present application provides three methods for the terminal to determine the second ED threshold:
  • the terminal can be enforced by the network device to set the first ED threshold
  • the value is determined as the second ED threshold value, so that the network device can clarify the second ED threshold value actually used by the terminal during LBT before uplink transmission;
  • the terminal determines according to the first information
  • the second ED threshold value so that the network device can also learn the second ED threshold value actually used by the terminal during LBT before uplink transmission based on the first information;
  • the terminal will The determined second ED threshold value is sent to the network device through the second information, that is, the terminal can select the second ED threshold value by itself, and inform the network device through the second information, so that the network device can learn about the terminal The second ED threshold actually used during LBT before uplink transmission.
  • the three determination methods are described below.
  • the terminal determines the first ED threshold value as the second ED threshold value actually used during LBT before uplink transmission.
  • the terminal can use the first ED threshold as the actual second ED threshold for LBT before uplink transmission in the following two scenarios:
  • the uplink transmission is a scheduled uplink transmission, and the terminal uses the first ED threshold value as the second ED threshold value in the LBT before the scheduled uplink transmission;
  • the uplink transmission is a pre-configured uplink transmission, and the terminal uses the first ED threshold value as the second ED threshold value during the LBT before the pre-configured uplink transmission.
  • the second ED threshold value actually used in the LBT before uplink transmission is determined according to the first information.
  • the first information includes at least one of the following two types of first information:
  • the first information includes the first indication information in Downlink Control Information (DCI).
  • DCI Downlink Control Information
  • the DCI is the DCI used to schedule uplink transmission; or, the DCI is the DCI used to trigger pre-configured uplink transmission; or, the DCI is a common group indication control signal, and the common organization control signal may include Public group physical downlink control channel (group-common PDCCH), for example, the DCI may be DCI2_0.
  • group-common PDCCH Public group physical downlink control channel
  • the DCI may be DCI2_0.
  • the English full name of PDCCH is Physical Downlink Control Channel.
  • the first indication information is set in the DCI used for scheduling uplink transmission, and the network device can perform targeted processing for each scheduled terminal. For example, the network device may decide which ED threshold to use for the scheduling resources of each terminal.
  • the first indication information is set in the DCI used to trigger the pre-configured uplink transmission, and the network device can use the activated DCI to determine which ED threshold is used for the at least one uplink resource for the at least one pre-configured uplink resource. Decided.
  • Setting the first indication information in the DCI used to schedule uplink transmission or the DCI used to trigger pre-configured uplink transmission in both cases indicates how to set the ED threshold for each terminal.
  • the network device can also set the first indication information in the public group physical downlink control channel, so that the DCI can instruct a group of terminals how to set the ED threshold, because there is no need for each terminal Indicate how to set the ED threshold, thus achieving the purpose of reducing control signaling overhead.
  • the first information includes information about time domain units, and the time domain units include slots, time slot groups, symbols, symbol groups, frames, frame groups, and subframes. ) Or subframe group, etc.
  • the time domain unit may include the first symbol outside the uplink transmission resource used for uplink transmission as an example for description, and the first symbol may be a symbol or a symbol group.
  • the uplink transmission resources include scheduled uplink transmission resources and pre-configured uplink transmission resources.
  • the first information is the foregoing first implementation manner, or the first information is the foregoing second implementation manner, or, the first information is both the foregoing first implementation manner and the foregoing second implementation the way.
  • the second determination method may include: when the first indication information indicates that the first ED threshold is used as the second ED threshold, determining the first ED threshold Is the second ED threshold actually used during LBT before uplink transmission.
  • the first indication information is explicit indication information or implicit indication information.
  • the first indication information may be the first bit in the designated bit field in the DCI, where the first bit may include at least one bit (bit).
  • the designated bit field may be a reserved bit field in the DCI, or the designated bit field may be a multiplexing bit field in the DCI.
  • the first indication information is explicit indication information.
  • Explicit indication information means that the bits in the bit field can directly indicate that the second ED threshold is the first ED threshold, and the reserved bit field refers to a DCI specifically used to indicate the second ED threshold.
  • the value is a bit field of the first ED threshold. Specifically, the bits in the bit field are used to indicate that the second ED threshold is a bit field of the first ED threshold.
  • the network device configures the first ED threshold value for the terminal. After the configuration is completed, the network device instructs the terminal to use the first ED threshold value as the second ED threshold in the DCI used to schedule the terminal for uplink transmission Value is LBT.
  • the terminal uses the first ED threshold in the LBT before the scheduled uplink transmission.
  • the first indication information may be a reserved bit field with a length of 1 bit. If the bit indication in the bit field is '1', it means that the second ED threshold is equal to the first ED threshold. ; On the contrary, if the bit in the bit field indicates '0', it means that the second ED threshold is not equal to the first ED threshold.
  • the first indication information is implicit indication information.
  • the implicit indication information means that the bits in the bit field can indirectly indicate that the second ED threshold is the first ED threshold, that is, the bits in the bit field can be used to indicate the second ED threshold.
  • the value is the first ED threshold value, and can also be used as other indication information.
  • the multiplexing bit field refers to multiplexing an original bit field in the DCI.
  • the original bit field in DCI can be the Frequency Domain Resource Assignment (FDRA) field, the Time Domain Resource Assignment (TDRA) field, the modulation and coding scheme (MCS) field, Channel coding redundancy version (Redundancy Version, RV) field, or physical uplink control channel resource indicator (PUCCH resource indicator) field, PDSCH-to-HARQ feedback timing indicator field, and downlink assignment index (downlink assignment index) field.
  • FDRA Frequency Domain Resource Assignment
  • TDRA Time Domain Resource Assignment
  • MCS modulation and coding scheme
  • RV Channel coding redundancy version
  • RV Physical uplink control channel resource indicator
  • PDSCH-to-HARQ feedback timing indicator field PDSCH-to-HARQ feedback timing indicator
  • downlink assignment index downlink assignment index
  • a bit field can also be set in the DCI to indicate the channel access priority class (CAPC).
  • CAC channel access priority class
  • the terminal determines that the CAPC indicated in the DCI is different from the CAPC of the data to be uploaded in the terminal, the terminal can consider that the network device needs to share the COT with the terminal, and the terminal can use the first ED threshold as the actual second ED threshold . That is, in this implementation manner, it is determined whether the terminal uses the first ED threshold value as the actual second ED threshold value according to the relationship between the CAPC indicated in the DCI and the CAPC of the data to be uploaded in the terminal.
  • a bit field can also be set in the DCI to indicate whether to share the COT of the terminal.
  • the terminal may use the first ED threshold value as the actual second ED threshold value. That is, in this implementation manner, it is determined whether the terminal uses the first ED threshold value as the actual second ED threshold value according to whether the DCI indicates that a network device needs to share the COT with the terminal.
  • the DCI used to schedule the terminal for uplink transmission is taken as an example for description.
  • the DCI may be the DCI used to activate the uplink transmission pre-configured by the terminal.
  • the network device configures the first ED threshold value for the terminal. After the configuration is completed, the network device instructs the terminal to use the first ED threshold value as the second ED in the DCI used to activate the uplink transmission pre-configured by the terminal.
  • the threshold is LBT. The terminal uses the first ED threshold in the pre-configured LBT before uplink transmission.
  • the second determination method may include: when the information of the current domain unit (including the first symbol in the embodiment of the present application) meets the first condition, determining that the first symbol is used It indicates that the second ED threshold is the first ED threshold.
  • the first symbol refers to a symbol outside the uplink transmission resource.
  • the first symbol may include at least one of the following three symbols:
  • the first symbol the first symbol after the last symbol among the symbols included in the uplink transmission resource.
  • FIG. 3 schematically shows a first symbol.
  • Figure 3 shows two time slots (slots) in the time domain, each slot includes 14 symbols, where 12 of the 14 symbols included in the first slot correspond to uplink transmission (UL transmission) Resources.
  • the first symbol is a symbol D
  • the symbol D is the first symbol after the last symbol among the symbols included in the UL transmission resource.
  • the second type of symbol at least one continuous symbol after the last symbol among the symbols included in the uplink transmission resource, and the at least one symbol includes the first symbol after the last symbol.
  • FIG. 4 schematically shows another first symbol. Similar to FIG. 3, FIG. 4 shows two slots in the time domain, and each slot includes 14 symbols, where 12 of the 14 symbols included in the first slot correspond to UL transmission resources. It can be seen from FIG. 4 that the first symbol includes two consecutive symbols D, and the two consecutive symbols D are two consecutive symbols after the last symbol among the symbols included in the UL transmission resource.
  • the first symbol may include consecutive three, four, five or more symbols.
  • the third type of symbol at least one symbol from the last symbol among the symbols included in the uplink transmission resource to the first symbol among the symbols included in the pre-configured downlink transmission resource closest to the uplink transmission resource.
  • FIG. 5 schematically shows still another first symbol. Similar to FIG. 3, FIG. 5 shows two slots in the time domain, and each slot includes 14 symbols, where 12 of the 14 symbols included in the first slot correspond to UL transmission resources.
  • FIG. 5 also shows the pre-configured downlink transmission closest to the UL transmission resource, for example, the downlink transmission resource corresponding to the synchronization signal block (Synchronization Signal Block, SSB).
  • SSB Synchrom Signal Block
  • the first symbol includes a symbol D, which is from the last symbol included in the UL transmission resource to the middle of the first symbol included in the downlink transmission resource corresponding to the pre-configured downlink transmission SSB Of a symbol.
  • the pre-configured downlink transmission is SSB for illustration.
  • the pre-configured downlink transmission may be the downlink transmission as SSB, channel status information reference signal (Channel Status Information Reference Signal, At least one of CSI-RS transmission, downlink control channel (Physical Downlink Control CHannel, PDCCH) transmission, and physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) transmission.
  • channel status information reference signal Channel Status Information Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PDCCH Physical Downlink Control CHannel
  • PDSCH Physical Downlink shared channel
  • the first condition includes at least one of the following two first conditions:
  • the first implementation of the first condition the first symbol is not an uplink symbol. That is, the type of the first symbol is not an uplink symbol.
  • the second implementation of the first condition the first symbol overlaps or partially overlaps with the symbol included in the downlink transmission resource used for the pre-configured downlink transmission.
  • the first condition is the foregoing first implementation manner, or the first condition is the foregoing second implementation manner, or the first condition is both the foregoing first implementation manner and the foregoing second implementation the way.
  • the network device configures the first ED threshold for the terminal. After the configuration is completed, the network device schedules the terminal to perform uplink transmission. The terminal determines the second symbol according to the first symbol outside the uplink transmission resource. ED threshold.
  • the first symbol outside the uplink transmission resource refers to the foregoing first symbol, that is, the first symbol after the last symbol among the symbols included in the uplink transmission resource.
  • the terminal determines the second ED threshold value according to the type of the first symbol outside the uplink transmission resource.
  • the type of the first symbol may include an uplink symbol, a downlink symbol, and a flexible symbol. If it is determined that the type of the first symbol D in FIG.
  • the terminal determines to use the first ED threshold value as the second ED threshold value.
  • the terminal can obtain the uplink and downlink information of the first symbol through the broadcast message (System Information Block, SIB) of the network device, such as SIB1, and the terminal can also use the control message sent by the network device, such as the slot format indicator (SFI). Obtain the uplink and downlink information of the first symbol.
  • SIB System Information Block
  • the network device configures the first ED threshold for the terminal. After the configuration is completed, the network device schedules the terminal to perform uplink transmission, and the terminal determines the second symbol according to the first symbol outside the uplink transmission resource.
  • ED threshold The first symbol outside the uplink transmission resource refers to the above-mentioned second type of symbol, that is, at least one consecutive symbol after the last symbol of the symbols included in the uplink transmission resource, and the at least one symbol includes the first symbol after the last symbol.
  • a symbol For example, the terminal determines the second ED threshold value according to the type of the first symbol outside the uplink transmission resource.
  • the types of the first symbol include uplink symbols, downlink symbols and flexible symbols. If it is determined that the types of two consecutive symbols D in FIG.
  • the terminal determines to use the first ED threshold value as the second ED threshold value.
  • the terminal may obtain the uplink and downlink information of the first symbol through the SIB1 of the network device, and the terminal may also obtain the uplink and downlink information of the first symbol through a control message sent by the network device, such as SFI.
  • the network device configures the first ED threshold for the terminal. After the configuration is completed, the network device schedules the terminal to perform uplink transmission, and the terminal determines the second symbol according to the first symbol outside the uplink transmission resource.
  • ED threshold refers to the above-mentioned third symbol, that is, from the last symbol of the symbols included in the uplink transmission resource to the one included in the pre-configured downlink transmission resource closest to the uplink transmission resource At least one symbol between the first symbol in the symbol.
  • the terminal determines the second ED threshold value according to the type of the first symbol outside the uplink transmission resource.
  • the types of the first symbol include uplink symbols, downlink symbols and flexible symbols.
  • the terminal determines to use the first ED threshold value as the second ED threshold value.
  • the symbol of the interval is a symbol D.
  • the number of the symbols of the interval may be multiple, for example, two, three or more.
  • the number of symbols in the interval can be related to SCS. For example, when the SCS is 15khz and 30khz, the number of symbols in the interval can be one or two, and when the SCS is 60khz, the number of symbols in the interval can be one, two or three. .
  • the first symbol in the second implementation manner may also be any one of the above-mentioned first to third first symbols.
  • the first symbol is the above-mentioned second type of first symbol as an example.
  • FIG. 6 schematically shows a first symbol of a second implementation manner that satisfies the first condition. Similar to FIG. 3, FIG. 6 shows two slots in the time domain, and each slot includes 14 symbols, where 12 of the 14 symbols included in the first slot correspond to UL transmission resources. Fig. 6 also shows the pre-configured downlink transmission closest to the UL transmission resource, for example, the downlink transmission resource corresponding to the SSB. It can be seen from FIG. 6 that the first symbol includes four consecutive symbols D, and the four consecutive symbols D include the first symbol after the last symbol included in the UL transmission resource. The four symbols partially overlap with the pre-configured downlink transmission SSB, that is, the overlap of three symbols.
  • Figure 6 shows that the pre-configured downlink transmission is SSB for illustration. In other optional implementations, the pre-configured downlink transmission can be the downlink transmission as SSB transmission, CSI-RS transmission, PDCCH transmission, and PDSCH transmission. At least one of them.
  • the network device configures the first ED threshold for the terminal. After the network device is configured, when the network device schedules the terminal for uplink transmission, the terminal determines the second ED. Threshold value. In other optional implementation manners, the embodiments described in Figures 3 to 6 above may also be that the network device configures the first ED threshold for the terminal. After the network device is configured, the network device pre-configures the uplink of the terminal. During transmission, the terminal determines the second ED threshold.
  • the network device configures the first ED threshold for the terminal. After the network device is configured, the network device pre-configures the terminal's uplink transmission, and the terminal compares the uplink transmission resource with the terminal. The symbol of the pre-configured downlink transmission resource gap closest to it determines the second ED threshold.
  • the first information can be both the first implementation manner of the first information and the second implementation manner of the first information, that is, the first information can be implemented at the same time.
  • the first indication information in the DCI and the information of the time domain unit is included in the DCI and the information of the time domain unit.
  • the process for the terminal to determine the second ED threshold actually used during LBT before uplink transmission according to the first information may include:
  • the time domain unit is a time domain unit after the uplink transmission resource used for uplink transmission, and the time domain unit may be used to indicate one or a period of time domain region.
  • the time domain unit may be the first symbol.
  • the time domain unit may also be in other forms than the symbol, which is not limited in this application.
  • the ED threshold value selected or determined by the terminal itself is determined as the second ED threshold value actually used during LBT before uplink transmission.
  • the terminal can choose by itself whether to use the first ED threshold value as the second ED threshold value that is actually used for LBT.
  • the terminal may determine the standard ED threshold value pre-appointed in the communication protocol as the second ED threshold value, or the terminal may calculate according to the target
  • the second ED threshold is calculated by the formula and the channel conditions that need to be monitored, and the target calculation formula may be instructed by the network device or determined by the communication protocol.
  • the method for determining the energy detection threshold may include: sending second information to the network device, and the second information is used to indicate the actual LBT before uplink transmission.
  • the second ED threshold used.
  • the second ED threshold value may be equal to or not equal to the first ED threshold value.
  • the second information includes at least one of the following: uplink control information, uplink data information, uplink transmission resources actually transmitted during uplink transmission (or type of uplink transmission resources actually transmitted during uplink transmission), and uplink transmission resources Demodulation Reference Signal (Demodulation Reference Signal, DMRS) (or the type of uplink DMRS for uplink transmission).
  • the second information may include second indication information, and the second only information is used to indicate the second ED threshold actually used during LBT before uplink transmission. The network device determines the second ED threshold value used by the terminal according to the second indication information in the received second information.
  • the network device configures the first ED threshold value for the terminal, and after the configuration is completed, the network device pre-configures the terminal's uplink transmission.
  • the terminal selects whether the second ED threshold is equal to the first ED threshold, and the terminal uses the result of the self-selection through the uplink control information on the uplink control channel.
  • the uplink control information is CG-UCI (Configured Grant-Uplink Control). Information, UCI), notify the network equipment.
  • CG-UCI can be set in the pre-configured uplink transmission resources for uplink transmission and transmitted together with the Physical Uplink Shared Channel (PUSCH), as shown in Figure 7 It is a schematic diagram of uplink control information and uplink transmission resources being transmitted together.
  • the second ED threshold used by the terminal is determined according to the second indication information in the UCI.
  • the second indication information may be explicit indication information or implicit indication information.
  • explicit indication information the explicit indication information
  • implicit indication information reference may be made to the aforementioned first indication information, which will not be repeated in the embodiment of the present application.
  • the second indication information when the second indication information is explicit indication information, the second indication information may be a bit field with a length of 1 bit. If the bit indication is '1', it means that the second ED threshold is equal to the first ED threshold; on the contrary, if the bit in the bit field indicates '0', it means that the second ED threshold is not equal to the first ED threshold.
  • the second indication information used to indicate the second ED threshold may be agreed with the indication information in other bit fields.
  • the second indication information and the CG-UCI are used to indicate whether to share the COT information. If the terminal indicates that the COT sharing is allowed, the second ED threshold is equal to the first ED threshold.
  • the first ED threshold may be the ED threshold used when the terminal initially establishes the LBT before the COT when the terminal and the base station share the COT.
  • the actual ED threshold value used during LBT before uplink transmission can be determined, so that the network device and the terminal can determine whether the terminal is in LBT time.
  • the actual used ED threshold value is agreed upon, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the network device can learn whether the second ED threshold value actually used by the terminal is the threshold value of the shared COT.
  • the network device can transmit control channels, broadcast channels, and broadcast signals in the shared COT, and in the shared COT, the network device transmits the control channel to the terminal , Data channel and reference signal. Effectively improve the efficiency of network equipment sending data to the terminal.
  • FIG. 8 shows a method for determining an ED threshold value provided by an embodiment of the present application.
  • the method may be applied to the network device in the communication system 100 shown in FIG. 1, and the network device may be an access point device, namely Base station.
  • the method may include:
  • Step 801 Configure a first ED threshold value to the terminal.
  • Step 802 Determine a second ED threshold.
  • the second ED threshold is used by the terminal to listen and speak LBT before uplink transmission, and the second ED threshold is equal to or not equal to the first ED threshold. value.
  • the ED threshold value actually used during the LBT before the terminal uplink transmission can be determined, so that the terminal can be connected to the LBT between the network device and the terminal.
  • the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the foregoing step 802 may include the following three determination methods:
  • the first ED threshold value is determined as the second ED threshold value.
  • the second ED threshold is determined according to the first information.
  • the first information includes at least one of the following: first indication information in the downlink control information DCI, where DCI is DCI used to schedule the uplink transmission, or the DCI is used to trigger pre-configured uplink transmission Or, the DCI is a common group indication control signal; information of a time domain unit, and the time domain unit is not used for the uplink transmission.
  • the second determining method may include: determining the first ED threshold value when the first indication information indicates that the first ED threshold value is used as the second ED threshold value Is the second ED threshold; where the first indication information is explicit indication information or implicit indication information.
  • the first indication information is the first bit in a designated bit field in the DCI, and the designated bit field is a reserved bit field in the DCI or a multiplexed bit field.
  • the information of the time domain unit satisfies the first condition, it is determined that the information of the time domain unit is used to indicate that the second ED threshold is the first ED threshold.
  • the information of the time domain unit includes at least one of the following: the first symbol after the last symbol in the symbols included in the uplink transmission resource; the last symbol in the symbols included in the uplink transmission resource At least one consecutive symbol after the last symbol, where the at least one symbol includes the first symbol after the last symbol; from the last symbol of the symbols included in the uplink transmission resource to the nearest symbol to the uplink transmission resource At least one symbol between the first symbol among the symbols included in the pre-configured downlink transmission resource.
  • the first condition may include at least one of the following: the information of the time domain unit is not an uplink symbol; the first symbol overlaps with a symbol included in a downlink transmission resource used for pre-configured downlink transmission, or Partially coincide.
  • the first pre-configured downlink transmission includes at least one of the following: synchronization signal block SSB transmission; channel state information reference signal CSI-RS transmission; downlink control channel PDCCH transmission; physical downlink shared channel PDSCH transmission.
  • the first information includes: first indication information in the DCI and information of the time domain unit; the determining the second ED threshold value according to the first information includes:
  • the second ED is determined according to the first indication information and the information of the time domain unit Threshold value.
  • the second ED threshold is determined according to the second information.
  • the determination of the ED threshold may further include: the network device receives second information, and the second information is used to indicate the actual use of the LBT before uplink transmission.
  • the second ED threshold is equal to or not equal to the first ED threshold.
  • the second information includes at least one of the following: uplink control information; uplink data information; uplink transmission resources actually transmitted during uplink transmission; and uplink DMRS for uplink transmission.
  • the configured first ED threshold is the ED threshold of the terminal shared channel occupation time COT; or, the configured first ED threshold is the maximum ED Threshold value.
  • the actual ED threshold value used during LBT before uplink transmission can be determined, so that the network device and the terminal can determine whether the terminal is in LBT time.
  • the actual used ED threshold value is agreed upon, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the network device can learn whether the second ED threshold value actually used by the terminal is the threshold value of the shared COT.
  • the network device can transmit control channels, broadcast channels, and broadcast signals in the shared COT, and in the shared COT, the network device transmits the control channel to the terminal , Data channel and reference signal. Effectively improve the efficiency of network equipment sending data to the terminal.
  • FIG. 9 is directed to the above-mentioned first determination method, and the method for determining the ED threshold value using the first determination method may include the following steps:
  • Step 901 The network device configures the first ED threshold value to the terminal.
  • the first ED threshold value may be the ED threshold value of the terminal sharing COT, or the maximum ED threshold value.
  • Step 902 The terminal receives the first ED threshold configured by the network device.
  • Step 903 The terminal determines the first ED threshold value as the second ED threshold value.
  • the network device forces the terminal to determine the first ED threshold value configured by the network device to the terminal as the second ED threshold value actually used when the terminal is LBT.
  • FIG. 10 is directed to the above-mentioned second determination method, and the method for determining the ED threshold value using the second determination method may include the following steps:
  • Step 1001 The network device configures a first ED threshold value to the terminal.
  • the first ED threshold value may be the ED threshold value of the terminal sharing COT, or the maximum ED threshold value.
  • Step 1002 The terminal receives the first ED threshold configured by the network device.
  • Step 1003 The terminal determines the second ED threshold value according to the first information.
  • the terminal determines the second ED threshold value actually used in LBT before uplink transmission according to at least one of the first indication information in the DCI included in the first information and the first symbol outside the uplink transmission resource.
  • Step 1004 The network device determines the second ED threshold value according to the first information.
  • the network device determines the second ED threshold actually used in LBT before uplink transmission according to at least one of the first indication information in the DCI included in the first information and the first symbol outside the uplink transmission resource .
  • step 1003 and step 1004 does not limit the execution order of step 1003 and step 1004, that is, step 1003 and step 1004 can be performed at the same time, or step 1003 and step 1004 can be performed first.
  • the network device can also determine whether the second ED threshold actually used by the terminal is the first ED threshold according to the first indication information in the DCI sent to the terminal Value; when the first information includes the first symbol outside the uplink transmission resource, the network device can configure the terminal to determine the slot format through system messages or radio resource control (English: Radio Resource Control, RRC) signaling Therefore, the network device can learn the symbols included in the uplink transmission resource and the symbol type of each symbol outside the uplink transmission resource. Of course, it includes the symbol type of the first symbol outside the uplink transmission resource. That is, both the terminal and the network device can determine whether the second ED threshold actually used by the terminal is the first ED threshold according to the first information.
  • RRC Radio Resource Control
  • FIG. 11 is directed to the above-mentioned third determination method, and the determination method of the ED threshold value applying the third determination method may include the following steps:
  • Step 1101 The network device configures the first ED threshold value to the terminal.
  • the first ED threshold value may be the ED threshold value of the terminal sharing COT, or the maximum ED threshold value.
  • Step 1102 The terminal receives the first ED threshold configured by the network device.
  • Step 1103 The terminal selects the ED threshold value by itself, and determines the ED threshold value selected by itself as the second ED threshold value.
  • the terminal can choose by itself whether to use the first ED threshold value as the second ED threshold value actually used when performing LBT.
  • Step 1104 The terminal sends second information to the network device.
  • the terminal sends second information to the network device based on the result of the self-selection.
  • the second information may include at least one of uplink control information, uplink data information, uplink transmission resources actually transmitted during uplink transmission, and uplink DMRS for uplink transmission.
  • Step 1105 The network device determines the second ED threshold value according to the second information.
  • the network device may determine the second ED threshold value actually used during LBT before uplink transmission according to the indication information in the second information.
  • the indication information may be implicit indication information or explicit indication information.
  • the terminal selects the second ED threshold value that is actually used for LBT, and then informs the network device through the second information, so that both the terminal and the network device can
  • the first information determines whether the second ED threshold actually used by the terminal is the first ED threshold.
  • FIG. 12 shows a device 1200 for determining an ED threshold value provided by an embodiment of the present application, and the device includes:
  • a receiving module 1201 which is configured to receive a first ED threshold configured by a network device
  • Processing module 1202 the processing module 1202 is configured to determine a second ED threshold, the second ED threshold is used to listen and then speak LBT before uplink transmission, and the second ED threshold is equal to or Not equal to the first ED threshold.
  • the device for determining the ED threshold value provided by the embodiment of the present application can determine the actual ED threshold value used during LBT before uplink transmission, so that the network equipment and the terminal can determine the actual value of the terminal during LBT.
  • the used ED threshold value is agreed, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • processing module 1202 is configured to:
  • processing module 1202 is configured to:
  • the first information includes at least one of the following:
  • the first indication information in the downlink control information DCI where the DCI is the DCI used to schedule the uplink transmission, or the DCI is the DCI used to trigger pre-configured uplink transmission, or the DCI is a common group Indicating control signal;
  • the time domain unit is not used for the uplink transmission.
  • processing module 1202 is configured to:
  • the first indication information indicates that the first ED threshold is adopted as the second ED threshold, determining that the first ED threshold is the second ED threshold;
  • the first indication information is explicit indication information or implicit indication information.
  • the first indication information is the first bit in a designated bit field in the DCI, and the designated bit field is a reserved bit field in the DCI or a multiplexed bit field.
  • processing module 1202 is configured to:
  • the information of the time domain unit satisfies the first condition, it is determined that the information of the time domain unit is used to indicate that the second ED threshold is the first ED threshold.
  • the first condition includes at least one of the following:
  • the information of the time domain unit is not an uplink symbol
  • the information of the time domain unit overlaps or partially overlaps with the symbols included in the downlink transmission resource used for the pre-configured downlink transmission.
  • the first symbol includes at least one of the following:
  • the first symbol after the last symbol among the symbols included in the uplink transmission resource is the first symbol after the last symbol among the symbols included in the uplink transmission resource
  • the pre-configured downlink transmission includes at least one of the following:
  • the first information includes: first indication information in the DCI and time domain unit information;
  • the processing module 1202 is used to:
  • the second ED is determined according to the first indication information and the information of the time domain unit Threshold value.
  • the apparatus 1200 further includes:
  • the sending module 1203 is configured to send the determined second ED threshold value to the network device through second information, and the second information is used to indicate the second ED threshold value .
  • the second information includes at least one of the following: uplink control information; uplink data information; uplink transmission resources actually transmitted during uplink transmission; uplink demodulation reference signal DMRS for uplink transmission.
  • the first ED threshold is the ED threshold of the shared channel occupation time COT; or, the first ED threshold is the maximum ED threshold.
  • the actual ED threshold value used during LBT before uplink transmission can be determined, so that the network device and the terminal can determine whether the terminal is in LBT time.
  • the actual used ED threshold value is agreed upon, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the network device can learn whether the second ED threshold value actually used by the terminal is the threshold value of the shared COT.
  • the network device can transmit control channels, broadcast channels, and broadcast signals in the shared COT, and in the shared COT, the network device transmits the control channel to the terminal , Data channel and reference signal. Effectively improve the efficiency of network equipment sending data to the terminal.
  • FIG. 14 shows another device 1400 for determining an ED threshold provided by an embodiment of the present application, and the device 1400 includes:
  • the processing module 1401 is configured to determine a second ED threshold, the second ED threshold is used by the terminal to listen and then speak LBT before uplink transmission, and the second ED threshold is equal to or not Equal to the first ED threshold.
  • the device for determining the ED threshold value provided by the embodiment of the present application can determine the actual ED threshold value used during LBT before uplink transmission, so that the network equipment and the terminal can determine the actual value of the terminal during LBT.
  • the used ED threshold value is agreed, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • processing module 1401 is configured to:
  • processing module 1401 is configured to:
  • the first information includes at least one of the following:
  • the first indication information in the downlink control information DCI where the DCI is the DCI used to schedule the uplink transmission, or the DCI is the DCI used to trigger pre-configured uplink transmission, or the DCI is a common group Indicating control signal;
  • the time domain unit is not used for the uplink transmission.
  • processing module 1401 is configured to:
  • the first indication information indicates that the first ED threshold is adopted as the second ED threshold, determining that the first ED threshold is the second ED threshold;
  • the first indication information is explicit indication information or implicit indication information.
  • the first indication information is the first bit in a designated bit field in the DCI, and the designated bit field is a reserved bit field in the DCI or a multiplexed bit field.
  • processing module 1401 is configured to:
  • the information of the time domain unit satisfies the first condition, it is determined that the information of the time domain unit is used to indicate that the second ED threshold is the first ED threshold.
  • the first condition includes at least one of the following: the information of the time domain unit is not an uplink symbol; the information of the time domain unit overlaps with a symbol included in a downlink transmission resource used for a pre-configured downlink transmission Or partially overlap.
  • the information of the time domain unit includes at least one of the following:
  • the first symbol after the last symbol among the symbols included in the uplink transmission resource is the first symbol after the last symbol among the symbols included in the uplink transmission resource
  • the first pre-configured downlink transmission includes at least one of the following: synchronization signal block SSB transmission; channel state information reference signal CSI-RS transmission; downlink control channel PDCCH transmission; physical downlink shared channel PDSCH transmission.
  • the first information includes: first indication information in the DCI and information of the time domain unit;
  • the processing module 1401 is used to:
  • the second ED is determined according to the first indication information and the information of the time domain unit Threshold value.
  • the device 1400 includes:
  • the receiving module 1402 is configured to receive second information before determining the second ED threshold value, and the second information is used to indicate the second information actually used in the LBT before uplink transmission.
  • the ED threshold is equal to or not equal to the first ED threshold;
  • the processing module 1401 is used to:
  • the second information includes at least one of the following: uplink control information; uplink data information; uplink transmission resources actually transmitted during uplink transmission; uplink demodulation reference signal DMRS for uplink transmission.
  • the configured first ED threshold is the ED threshold of the terminal shared channel occupation time COT; or, the configured first ED threshold is the maximum ED threshold.
  • the device for determining the ED threshold value provided by the embodiment of the present application can determine the actual ED threshold value used during LBT before uplink transmission, so that the network equipment and the terminal can determine the actual value of the terminal during LBT.
  • the used ED threshold value is agreed, so that the network device can determine the transmission mode for transmitting data to the terminal according to the second ED threshold value.
  • the network device can learn whether the second ED threshold value actually used by the terminal is the threshold value of the shared COT.
  • the network device can transmit control channels, broadcast channels, and broadcast signals in the shared COT, and in the shared COT, the network device transmits the control channel to the terminal , Data channel and reference signal. Effectively improve the efficiency of network equipment sending data to the terminal.
  • FIG. 16 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application, that is, a terminal or a network device.
  • the communication device includes a processor 1601, a receiver 1602, a transmitter 1603, a memory 1604, and a bus 1605.
  • the processor 1601 includes one or more processing cores, and the processor 1201 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1602 and the transmitter 1603 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 1604 is connected to the processor 1601 through a bus 1605.
  • the memory 1604 may be used to store at least one instruction, and the processor 1601 is used to execute the at least one instruction, so as to implement each step executed by the first IAB network device in the foregoing method embodiments.
  • the memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static anytime access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM) .
  • the present application provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to achieve the threshold value of the ED provided by the various method embodiments described above. Determine the method.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

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Abstract

本申请提供了一种能量检测ED门限值的确定方法及装置，涉及无线通信领域。所述方法包括：接收网络设备配置的第一ED门限值；确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。由于可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。

Description

能量检测门限值的确定方法及装置 技术领域
本申请涉及无线通信领域，特别涉及一种能量检测门限值的确定方法及装置。
背景技术
为了保证非授权频谱上各通信系统之间能够以公平的方式共享非授权频谱资源，第三代合作伙伴计划(Third Generation Partnership Project,3GPP)在应用许可辅助接入(License Assisted Access，LAA)技术中引入了先听后说(Listen Before Talk，LBT)机制。
LBT机制用于在各个通信系统接入非授权频谱上的信道之前，通信系统中的通信设备(例如终端)先对该信道进行侦听以确定该信道的闲忙状态。通常情况下，终端对信道进行侦听的过程包括在短持续时间(例如9微秒或者20微秒)内对信道上载波的能量进行检测的过程。当终端检测到该信道上载波的能量小于终端中设置的能量检测(Energy Detection，ED)门限值时，则该信道被认为是空闲状态；与之相反，当终端检测到该信道上载波的能量不小于ED门限值时，则该信道被认为是繁忙状态。
其中，基站可以为终端配置ED门限值。但是，基站难以确定终端在对信道进行侦听的过程中实际使用的ED门限值是否为基站配置的ED门限值，因此，亟需一种确定终端在对信道进行侦听的过程中实际使用的ED门限值的方法。
发明内容
本申请实施例提供了一种ED门限值的确定方法及装置，可以用于解决相关技术中无法确定终端在对信道进行侦听的过程中实际使用的ED门限值的方法的问题。所述技术方案如下：
一个方面，提供了一种ED门限值的确定方法，所述方法包括：
接收网络设备配置的第一ED门限值；
确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
一方面，提供了一种ED门限值的确定方法，所述方法包括：
向终端配置第一ED门限值；
确定第二ED门限值，所述第二ED门限值用于所述终端在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
一方面，提供了一种ED门限值的确定装置，所述装置包括：
接收模块，所述接收模块用于接收网络设备配置的第一ED门限值；
处理模块，所述处理模块用于确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
一方面，提供了一种能量检测ED门限值的确定装置，所述装置包括：
处理模块，所述处理模块用于向终端配置第一ED门限值；
所述处理模块用于确定第二ED门限值，所述第二ED门限值用于所述终端在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
一方面，提供了一种终端，所述终端包括处理器和存储器，所述存储器存储有至少一条指令，所述至少一条指令用于被所述处理器执行以实现上述与接收网络设备配置的第一ED门限值相关的步骤。
一方面，提供了一种网络设备，所述网络设备包括处理器和存储器，所述存储器存储有至少一条指令，所述至少一条指令用于被所述处理器执行以实现上述与配置第一ED门限值相关的步骤。
一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有指令，其特征在 于，所述指令被处理器执行时实现上述各方面中任一项方法的步骤。
本申请实施例提供的技术方案带来的有益效果至少包括：
通过确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供一种通信系统的示意图；
图2是本申请一个示例性实施例提供的一种ED门限值的确定方法的流程图；
图3是本申请一个示例性实施例提供的一种第一符号的示意图；
图4是本申请另一个示例性实施例提供的一种第一符号的示意图；
图5是本申请又一个示例性实施例提供的一种第一符号的示意图；
图6是本申请一个示例性实施例提供的一种满足第一条件的第二种实现方式的第一符号的示意图；
图7是本申请一个示例性实施例提供的一种上行控制信道与上行传输资源一起传输的示意图；
图8是本申请另一个示例性实施例提供的一种ED门限值的确定方法的流程图；
图9是本申请一个示例性实施例提供的一种应用第一种确定方法的ED门限值的确定方法的流程图；
图10是本申请一个示例性实施例提供的一种应用第二种确定方法的ED门限值的确定方法的流程图；
图11是本申请一个示例性实施例提供的一种应用第三种确定方法的ED门限值的确定方法的流程图；
图12本申请实施例提供的一种ED门限值的确定装置的框图；
图13本申请实施例提供的又一种ED门限值的确定装置的框图；
图14本申请实施例提供的又一种ED门限值的确定装置的框图；
图15本申请实施例提供的又一种ED门限值的确定装置的框图；
图16是本申请实施例提供的一种通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
在对本申请实施例提供的非授权频谱上的数据传输方法进行详细介绍之前，先对本申请实施例涉及的名词和通信系统进行简单介绍。
非授权频谱：是国家和地区划分的可用于无线电设备通信的频谱，该频谱通常被认为是共享频谱，即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求，就可以使用该频谱，不需要向政府申请专有的频谱授权。
LBT机制：指的是传输端在非授权频谱上向接收端传输数据之前，需要先按照规定对信道进行一段时间的ED，其中，该接收端和传输断为非授权频谱上的通信设备。如果ED的结果表示该信道为空闲状态，则传输端可以向接收端传输数据；如果ED的结果表示该信道为占用状态，则传输端需要根据规定回退一段时间再继续监听该信道，直到监听结果为空闲状态，再向接收端传输数据。其中，ED的结果指的是信道上载波的能量与ED门限值的大小关系：当信道上载波的能量小于ED门限值时，则该信道被认为是空闲状态；与之相反，当信道上载波的能量不小于ED门限值时，则该信道被认为是占用状态。可选的，LBT机制也可以称为ED机制。
信道占用时间(Channel Occupancy Time，COT)：在非授权频谱上，通信设备需要进行LBT，当LBT成功后，通信设备获得一次COT进行数据传输。为了保证公平性，在一次传输中，通信设备使用非授权频谱的信道进行信号传输的时长不能超过最大信道占用时间(Maximum Channel Occupancy Time，MCOT)。在非授权频谱上，对于网络设备(网络设备包括网络侧设备或者基站)获得的COT，该网络设备可以将该COT共享给终端(User Equipment，用户设备)用于发送上行信号或上行信道，此时，终端可以使用比终端自己试图获得信道时使用的优先级高的LBT方式，从而更大概率地获得信道的使用权。
在无线接入网(Radio Access Network，RAN)1的98b会议上指出，如果终端被网络设备配置了ED门限值，且终端采用了该ED门限值进行了LBT，则此时，当网络设备共享终端的COT时，网络设备可以在该共享COT内传输控制信道、广播信道以及广播信号，并且，在该共享COT内，网络设备还可以向终端传输控制信道、数据信道以及参考信号。如果终端进行LBT过程中未采用网络设备为其配置的ED门限值，则网络设备在该共享COT内仅能传输控制信道、广播信道以及广播信号，而难以想终端传输控制信道、数据信道以及参考信号。并且，网络设备传输的信号的时域长度也是受限的，对于子载波间隔(SubCarrier Spacing，SCS)为15千赫兹(kHz)、30kHz以及60kHz，所能够传输的信号长度分别不能超过2个符号(Symbol)、4个符号以及8个符号。
接下来，对本申请实施例涉及的通信系统进行简单介绍。
本申请实施例的技术方案可以应用于各种兼容非授权频谱的通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(freq终端ncy division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、先进的长期演进(advanced long term evolution，LTE-A)系统、新无线(new radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、无线局域网(wireless local area networks，WLAN)、无线保真(wireless fidelity，WiFi)、下一代通信系统或其他通信系统等。本申请实施例以该通信系统为NR-U系统为例来举例说明。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(device to device，D2D)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，以及车辆间(vehicle to vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端进行通信。可选地，该网络设备110可以是LTE系统中的演进型网络设备(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络设备或者未来通信系统中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端120。作为在此使用的“终端”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫 星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端可以指接入终端、用户设备(User Equipment，终端)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端或者未来演进的PLMN中的终端等。
可选地，终端120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G通信系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图1示例性地示出了一个网络设备和两个终端，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端120，网络设备110和终端120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
通常情况下，网络设备为终端配置该终端用于LBT的ED门限值，但是，当终端进行LBT时实际使用的ED门限值不是网络设备为其配置的ED门限值，则导致网络设备难以确定是采用受限传输的方式或者非受限传输的方式向终端传输数据。其中，受限传输指的是网络设备所能够传输的数据长度受限，以及不能够向该终端传输控制信道、数据信道以及参考信号，则相应的，非受限传输指的是网络设备所能够传输的数据长度不受限，以及能够向该终端传输控制信道、数据信道以及参考信号。
图2示例性地示出了本申请实施例提供的一种ED门限值的确定方法，该方法可以应用于图1所示的通信系统100中的终端120。该方法可以包括：
步骤201、接收网络设备配置的第一ED门限值。
步骤202、确定第二ED门限值，该第二ED门限值用于在上行传输前进行LBT，该第二ED门限值等于或不等于第一ED门限值。
该第二ED门限值可以为终端在上行传输前进行LBT时，所实际使用的ED门限值。
综上所述，本申请实施例提供的ED门限值的确定方法中，可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
需要说明的是，网络设备基于与终端相同的策略来获知该终端在上行传输前的LBT时实际使用的第二ED门限值。
还需要说明的是，在一些可选的实现方式中，上述步骤201为可选步骤。
在本申请实施例中，网络设备可以为终端配置两种ED门限值，也即是，该第一ED门限值可以有两种，其中一种为一般的最大ED门限值，其中另一种为共享COT的ED门限值。该最大ED门限值指的是终端进行LBT时能够采用的多个ED门限值中的最大ED门限值，该最大ED门限值可以由通信协议所约定；该共享COT的ED门限值指的能够使终端与基站共享COT的ED门限值。
因此，上述步骤201中，接收到的网络设备配置的第一ED门限值可以是该最大ED门限值或者共享COT的ED门限值。在上述步骤202中，确定在上行传输前的LBT时实际使用的第二ED门限值可以跟包括，确定在上行传输前的LBT时实际使用的第二ED门限值是否为共享COT的ED门限值，或者，是否为最大ED门限值。当然，网络设备也可以为终端配置其他种类的ED门限值，本申 请对此不进行限制。
在本申请实施例中，网络设备通过无线资源控制(Radio Resource Control，RRC)参数向终端配置ED门限值，则该ED门限值也可以表示为ED_RRC。可选的，终端在上行传输前的LBT时实际使用的第二ED门限值可以表示为ED_actual。若第二ED门限值等于第一ED门限值，则可以表示为ED_actual＝ED_RRC。
需要提前说明的是，在本申请实施例中，上行传输资源指的是上行传输时域资源。
可选的，针对上述步骤202，本申请实施例提供了三种终端确定该第二ED门限值的方法：在第一种确定方法中，终端可以被网络设备强制执行将第一ED门限值确定为该第二ED门限值，如此使得网络设备可以明确终端在上行传输前的LBT时实际使用的第二ED门限值；在第二种确定方法中，终端根据第一信息来确定该第二ED门限值，如此使得网络设备也可以根据该第一信息获知到终端在上行传输前的LBT时实际使用的第二ED门限值；在第三种确定方法中，由终端将确定的第二ED门限值通过第二信息发送至网络设备，也即是，终端可以自行选择该第二ED门限值，并通过第二信息告知网络设备，如此使得网络设备可以获知到终端在上行传输前的LBT时实际使用的第二ED门限值。以下分别对该三种确定方法进行说明。
在第一种确定方法中，终端将第一ED门限值，确定为在上行传输前的LBT时实际使用的第二ED门限值。当网络设备为终端配置了第一ED门限值之后，该终端可以在以下两种场景下将该第一ED门限值作为在上行传输前的LBT是实际使用的第二ED门限值：在第一种场景中，该上行传输为被调度的上行传输，则终端在被调度的上行传输前的LBT时，将该第一ED门限值作为该第二ED门限值；在第二种场景中，该上行传输为预配置的上行传输，则终端在预配置的上行传输前的LBT时，将该第一ED门限值作为该第二ED门限值。
在第二种确定方法中，根据第一信息确定在上行传输前的LBT时实际使用的第二ED门限值。可选的，该第一信息包括以下两种第一信息中的至少一种：
第一信息的第一种实现方式：第一信息包括下行控制信息(Downlink Control Information，DCI)中的第一指示信息。可选的，该DCI是用于调度上行传输的DCI；或者，该DCI是用于触发预配置的上行传输的DCI；或者，该DCI是公共组指示控制信号，该公共组织是控制信号可以包括公共组物理下行控制信道(group-common PDCCH)，示例的，该DCI可以为DCI2_0。其中，PDCCH的英文全称为Physical Downlink Control Channel。
其中，将第一指示信息设置于用于调度上行传输的DCI中，网络设备可以针对每一个调度的终端做出有针对性的处理。例如，网络设备可以针对每一个终端的调度资源做出使用哪一个ED门限值的决定。
将第一指示信息设置于用于触发预配置的上行传输的DCI中，网络设备可以针对预配置的至少一个上行资源，采用激活DCI对该至少一个上行资源做出使用哪一个ED门限值的决定。
将第一指示信息设置于用于调度上行传输的DCI或者设置于用于触发预配置的上行传输的DCI中这两种情况，均是针对每个终端来指示如何设置ED门限值。
在其他可选的实现方式中，网络设备也可以将第一指示信息设置于公共组物理下行控制信道中，如此使得该DCI可以指示一组终端如何设置ED门限值，由于无需针对每个终端指示如何设置ED门限值，因此达到了减少控制信令开销的目的。
第一信息的第二种实现方式：第一信息包括时域单元的信息，所述时域单元包括时隙(slot)、时隙组、符号、符号组、帧、帧组、子帧(subframe)或者子帧组等。在本申请实施例中，以时域单元可以包括上行传输所使用的上行传输资源外的第一符号为例进行说明，该第一符号可以为符号或者符号组。可选的，上行传输资源包括被调度的上行传输资源，以及预配置的上行传输资源。
可选的，该第一信息为上述第一种实现方式，或者，该第一信息为上述第二种实现方式，或者，该第一信息同时为上述第一种实现方式以及上述第二种实现方式。
当第一信息包括上述第一种实现方式，该第二种确定方法可以包括：当第一指示信息指示采用第一ED门限值作为第二ED门限值时，确定第一ED门限值为在上行传输前的LBT时实际使用的所 述第二ED门限值。
其中，第一指示信息为显式(Explicit)指示信息或者隐式(Implicit)指示信息。该第一指示信息可以为DCI中的指定比特域中的第一比特，其中，第一比特可以包括至少一个比特(bit)。该指定比特域可以为DCI中的预留比特域，或者，该指定比特域可以为DCI中的复用比特域。
在本申请实施例中，当指定比特域为预留比特域时，该第一指示信息为显式指示信息。显式指示信息指的是比特域中的比特可以直接指示出第二ED门限值为第一ED门限值，预留比特域指的是DCI内的一个专门用于指示第二ED门限值为第一ED门限值的比特域，具体的，该比特域中的比特用于指示第二ED门限值为第一ED门限值的比特域。
示例的，网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，在用于调度终端进行上行传输的DCI中，指示终端用第一ED门限值作为第二ED门限值进行LBT。终端在被调度的上行传输前的LBT时用第一ED门限值。在该DCI中，第一指示信息可以是一个长度为1比特的预留比特域，如果该比特域中的比特指示为‘1’，则表示第二ED门限值等于第一ED门限值；与之相反，如果该比特域中的比特指示为‘0’则表示第二ED门限值不等于第一ED门限值。
在本申请实施例中，当指定比特域为复用比特域时，该第一指示信息为隐式指示信息。隐式指示信息指的是比特域中的比特可以间接指示出第二ED门限值为第一ED门限值，也即是，该比特域中的比特除了可以用于指示第二ED门限值为第一ED门限值，还可以作为其他指示信息，复用比特域指的是复用DCI中原有的一个比特域。DCI中原有的一个比特域可以为频域资源分配(Frequency Domain Resource Assignment，FDRA)域、时域资源分配(Trequency Domain Resource Assignment，TDRA)域、调制编码方式(modulation and coding scheme，MCS)域、信道编码冗余版本(Redundancy Version，RV)域、或物理上行控制信道资源指示(PUCCH resource indicator)域、PDSCH-to-HARQ feedback timing indicator域以及下行分配索引(downlink assignment index)域。该复用比特域为复用前述任意一个比特域。
在其他可选的实现方式中，DCI中还可以设置比特域用于指示信道接入优先级等级(Channel Access Priority Class，CAPC)。当终端确定DCI中指示的CAPC比终端中待上传的数据的CAPC不同时，终端可以认为网络设备需要与终端共享COT，则终端可以将第一ED门限值作为实际的第二ED门限值。也即是，在该实现方式中，根据DCI中指示的CAPC与终端中待上传的数据的CAPC的关系，来确定终端是否将第一ED门限值作为实际的第二ED门限值。
在其他可选的实现方式中，DCI中还可以设置比特域用于指示是否共享终端的COT。当终端确定DCI中指示网络设备需要与终端共享COT，则终端可以将第一ED门限值作为实际的第二ED门限值。也即是，在该实现方式中，根据DCI中是否指示有网络设备需要与终端共享COT，来确定终端是否将第一ED门限值作为实际的第二ED门限值。
当然，上述实施例中是以用于调度终端进行上行传输的DCI为例进行说明，在其他可选的实现方式中，该DCI可以是用于激活终端预配置的上行传输的DCI。示例的，网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，在用于激活终端预配置的上行传输的DCI中，指示终端用第一ED门限值作为第二ED门限值进行LBT。终端在预配置的上行传输前的LBT时用第一ED门限值。
当第一信息包括上述第二种实现方式，该第二种确定方法可以包括：当时域单元(包括本申请实施例中的第一符号)的信息满足第一条件时，确定该第一符号用于指示第二ED门限值为第一ED门限值。
第一符号指的是上行传输资源外的符号，可选的，第一符号可以包括以下三种符号中的至少一种：
第一种符号：上行传输资源所包括的符号中的最后一个符号后的第一个符号。
示例的，图3示意性示出了一种第一符号。图3中示出了时域上的两个时隙(slot)，每个slot包括14个符号，其中，第一个slot中包括的14个符号中的12个符号对应上行传输(UL transmission)资源。从图3中可以看出，该第一符号为一个符号D，该符号D为UL transmission资源所包括的符号中的最后一个符号后的第一个符号。
第二种符号：上行传输资源所包括的符号中的最后一个符号后连续的至少一个符号，该至少一个 符号包括该最后一个符号后的第一个符号。
示例的，图4示意性示出了另一种第一符号。与图3类似，图4中示出了时域上的两个slots，每个slot包括14个符号，其中，第一个slot中包括的14个符号中的12个符号对应UL transmission资源。从图4中可以看出，该第一符号包括两个连续的符号D，该两个连续的符号D为UL transmission资源所包括的符号中的最后一个符号后连续的两个符号。当然，在其他可选的实现方式中，该第一符号可以包括连续的三个、四个、五个或者多个符号。
第三种符号：上行传输资源所包括的符号中的最后一个符号起，至距离该上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
示例的，图5示意性示出了又一种第一符号。与图3类似，图5中示出了时域上的两个slots，每个slot包括14个符号，其中，第一个slot中包括的14个符号中的12个符号对应UL transmission资源。图5中还示出了距离该UL transmission资源最近的预配置的下行传输，例如同步信号块(Synchronization Signal Block，SSB)对应的下行传输资源。从图5中可以看出，该第一符号包括一个符号D，该符号D为UL transmission资源包括的最后一个符号起，至预配置的下行传输SSB对应的下行传输资源包括的第一个符号中间的一个符号。
图5示出的是以预配置的下行传输为SSB进行说明，在其他可选的实现方式中，预配置的下行传输可以为下行传输为SSB、信道状态信息参考信号(Channel Status Information Reference Signal，CSI-RS)传输，下行控制信道(Physical Downlink Control CHannel，PDCCH)传输，以及物理下行共享信道(Physical Downlink Shared Channel，PDSCH)传输中的至少一种。
可选的，该第一条件包括以下两种第一条件中的至少一种：
第一条件的第一种实现方式：第一符号不为上行符号。也即是，第一符号的类型不是上行符号。
第一条件的第二种实现方式：第一符号与预配置的下行传输所使用的下行传输资源所包括的符号重合或者部分重合。
可选的，该第一条件为上述第一种实现方式，或者，该第一条件为上述第二种实现方式，或者，该第一条件同时为上述第一种实现方式以及上述第二种实现方式。
针对上述第一种实现方式，继续以上述图3至图5所描述的第一符号为例进行说明。
在图3所描述的第一符号中，网络设备为终端配置了第一ED门限值，在配置完成之后，网络设备调度终端进行上行传输，终端根据上行传输资源外的第一符号确定第二ED门限值。该上行传输资源外的第一符号指的是上述第一种符号，即上行传输资源所包括的符号中的最后一个符号后的第一个符号。示例的，终端根据上行传输资源外的第一符号的类型确定第二ED门限值。该第一符号的类型可以包括上行(uplink)符号,下行(downlink)符号以及灵活(flexible)符号。若确定该图3中的第一符号D的类型不为上行符号，则终端确定用第一ED门限值作为第二ED门限值。终端可以通过网络设备的广播消息(System Information Block，SIB)，例如SIB1得到第一符号的上下行信息，终端也可以通过网络设备发送的控制消息，例如时隙格式指示(Slot format indicator，SFI)得到第一符号的上下行信息。
在图4所描述的第一符号中，网络设备为终端配置了第一ED门限值，在配置完成之后，网络设备调度终端进行上行传输，终端根据上行传输资源外的第一符号确定第二ED门限值。该上行传输资源外的第一符号指的是上述第二种符号，即上行传输资源所包括的符号中的最后一个符号后连续的至少一个符号，该至少一个符号包括该最后一个符号后的第一个符号。示例的，终端根据上行传输资源外的第一符号的类型确定第二ED门限值。该第一符号的类型包括上行符号,下行符号以及灵活符号。若确定该图4中的连续的两个符号D的类型均为不是上行符号，则终端确定用第一ED门限值作为第二ED门限值。终端可以通过网络设备的SIB1得到第一符号的上下行信息，终端也可以通过网络设备发送的控制消息，例如SFI得到第一符号的上下行信息。
在图5所描述的第一符号中，网络设备为终端配置了第一ED门限值，在配置完成之后，网络设备调度终端进行上行传输，终端根据上行传输资源外的第一符号确定第二ED门限值。该上行传输资源外的第一符号指的是上述第三种符号，即上行传输资源所包括的符号中的最后一个符号起，至距离该上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。 示例的，终端根据上行传输资源外的第一符号的类型确定第二ED门限值。该第一符号的类型包括上行符号，下行符号以及灵活符号。若确定该图5中上行传输资源与预配置的下行传输资源间隔的符号D的类型为不是上行符号，则终端确定用第一ED门限值作为第二ED门限值。在图5所描述的实施例中，间隔的符号为一个符号D，在其他可选的实现方式中，间隔的符号数量可以为多个，例如两个、三个或者更多个。该间隔的符号数量可以与SCS有关，例如，当SCS为15khz和30khz，则间隔的符号数量可以为一个或者两个，当SCS为60khz，则间隔的符号数量可以为一个、两个或者三个。
针对上述第二种实现方式，请参考图6。该第二种实现方式中的第一符号也可以为上述第一种至第三种第一符号中的任意一种。以下以第一符号为上述第二种第一符号为例进行说明。
图6示意性示出了一种满足第一条件的第二种实现方式的第一符号。与图3类似，图6中示出了时域上的两个slots，每个slot包括14个符号，其中，第一个slot中包括的14个符号中的12个符号对应UL transmission资源。图6中还示出了距离该UL transmission资源最近的预配置的下行传输，例如SSB对应的下行传输资源。从图6中可以看出，该第一符号包括四个连续的符号D，该四个连续的符号D包括UL transmission资源包括的最后一个符号后的第一个符号。该四个符号与预配置的下行传输SSB存在部分重合，即三个符号的重合。图6示出的是以预配置的下行传输为SSB进行说明，在其他可选的实现方式中，预配置的下行传输可以为下行传输为SSB传输、CSI-RS传输，PDCCH传输，以及PDSCH传输中的至少一种。
值得说明的是，上述图3至图6所描述的均是网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，网络设备调度终端进行上行传输时，终端确定第二ED门限值。在其他可选的实现方式中，上述图3至图6所描述的实施例也可以是网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，网络设备预配置终端的上行传输时，终端确定第二ED门限值。
示例的，以上述图6所示的实施例为例，网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，网络设备预配置终端的上行传输，终端根据上行传输资源与距离其最近的预配置的下行传输资源间隙的符号确定第二ED门限值。
可选的，在前述介绍第一信息时介绍到，第一信息可以同时为第一信息的第一种实现方式以及第一信息的第二种实现方式，也即是，该第一信息可以同时包括DCI中的第一指示信息以及时域单元的信息。
则在第二种确定方法中，终端根据第一信息确定在上行传输前的LBT时实际使用的第二ED门限值的过程可以包括：
若第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值时，根据第一指示信息和时域单元的信息，确定在上行传输前的LBT时实际使用的所述第二ED门限值，该时域单元为用于上行传输所使用的上行传输资源之后的时域单元，该时域单元可以用于表示一个或一段时域区域。本申请的一些实施例中，该时域单元可以是第一符号，当然，该时域单元也可以是不同于符号的其它形式，本申请对此不做限定。
在第三种确定方法中，将终端自行选择或者自行确定的ED门限值，确定为在上行传输前的LBT时实际使用的第二ED门限值。
终端可以自行选择是否将第一ED门限值用作进行LBT是实际使用的第二ED门限值。当终端不将该第一ED门限值作为第二ED门限值，则终端可以将通信协议中预先约定的标准ED门限值确定为第二ED门限值，或者，终端可以根据目标计算公式以及需要监听的信道条件等因素计算得到第二ED门限值，该目标计算公式可以由网络设备指示或者由通信协议确定。前述仅为本申请实施例提供的终端不将网络设备向其配置的第一ED门限值作为第二ED门限值的几种实现方式，当然，本申请实施例还可以包括其他可选的实现方式，在此不再赘述。
当终端自行选择ED门限值之后，本申请实施例提供的能量检测门限值的确定方法可以包括：发送第二信息至网络设备，该第二信息用于指示在上行传输前的LBT时实际使用的所述第二ED门限值。
其中，第二ED门限值可以等于或不等于第一ED门限值。可选的，该第二信息包括以下至少一种：上行控制信息、上行数据信息、上行传输时实际传输的上行传输资源(或者上行传输时实际传输 的上行传输资源的类型)以及上行传输的上行解调参考信号(Demodulation Reference Signal，DMRS)(或者上行传输的上行DMRS的类型)。可选的，第二信息中可以包括第二指示信息，该第二只是信息用于指示在上行传输前的LBT时实际使用的所述第二ED门限值。网络设备根据接收到的第二信息中的第二指示信息确定终端所用的第二ED门限值。
以该第二信息包括上行控制信息为例，网络设备配置了第一ED门限值给终端，网络设备在配置完成之后，预配置了终端的上行传输。终端自行选择第二ED门限值是否等于第一ED门限值,并且终端将自行选择的结果通过上行控制信道上的上行控制信息，例如该上行控制信息为CG-UCI(Configured Grant-Uplink Control Information，UCI)，通知给网络设备。示例的，如图7所示，CG-UCI可以设置于预配置的用于上行传输的上行传输资源中，并与物理上行共享信道(Physical Uplink Shared CHannel，PUSCH)一起传输，图7示出的是一种上行控制信息与上行传输资源一起传输的示意图。当网络设备接收到CG-UCI后根据UCI中的第二指示信息确定终端所用的第二ED门限值。
与上述第一指示信息类似，该第二指示信息可以为显式指示信息或者隐式指示信息。与显式指示信息以及隐式指示信息相关的解释可以参考前述第一指示信息，本申请实施例在此不再赘述。
示例的，当第二指示信息为显式指示信息，该第二指示信息可以是一个长度为1比特的比特域，如果该比特指示为‘1’，则表示第二ED门限值等于第一ED门限值；与之相反，如果该比特域中的比特指示为‘0’，则表示第二ED门限值不等于第一ED门限值。
示例的，当第二指示信息为隐式指示信息，用于指示第二ED门限值的第二指示信息可以与其他比特域中的指示信息做约定。例如，第二指示信息和CG-UCI中用于指示是否共享COT信息做约定，如果终端指示允许共享COT，则第二ED门限值等于第一ED门限值。
还需要说明的是，第一ED门限值可以是当终端与基站共享COT的情况下，终端初始建立该COT前的LBT时使用的ED门限值。
综上所述，本申请实施例提供的ED门限值的确定方法中，可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
并且，当网络设备设置的第一ED门限值为共享COT的门限值时，网络设备可以获知终端实际使用的第二ED门限值是否为该共享COT的门限值，当终端使用的第二ED门限值为该共享COT的门限值时，可以使得网络设备在该共享COT内传输控制信道、广播信道以及广播信号，并且，在该共享COT内，网络设备向终端传输控制信道、数据信道以及参考信号。有效提高了网络设备想终端发送数据的效率。
图8示出了本申请实施例提供的一种ED门限值的确定方法，该方法可以应用于图1所示的通信系统100中的网络设备，该网络设备可以为接入点设备，即基站。可选的，该方法可以包括：
步骤801、向终端配置第一ED门限值。
步骤802、确定第二ED门限值，该第二ED门限值用于该终端在上行传输前进行先听后说LBT，第二ED门限值等于或不等于所述第一ED门限值。
综上所述，本申请实施例提供的ED门限值的确定方法中，可以确定出终端上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
可选的，在本申请实施例中，上述步骤802可以包括以下三种确定方法：
第一种确定方法中，将第一ED门限值，确定为第二ED门限值。
第二种确定方法中，根据第一信息确定第二ED门限值。
可选的，第一信息包括以下至少一种：下行控制信息DCI中的第一指示信息，DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；时域单元的信息，所述时域单元不用于所述上行传输。
可选的，该第二种确定方法可以包括：当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；其中，所述第一指示信息 为显式指示信息或者隐式指示信息。
可选的，第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
可选的，当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
可选的，所述时域单元的信息包括以下至少一种：所述上行传输资源包括的符号中的最后一个符号后的第一个符号；所述上行传输资源包括的符号中的最后一个符号后连续的至少一个的符号，所述至少一个符号包括所述最后一个符号后的第一个符号；所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
可选的，所述第一条件可以包括以下至少一种：所述时域单元的信息不为上行符号；所述第一符号与预配置的下行传输所使用的下行传输资源包括的符号重合或者部分重合。
可选的，所述第一预配置的下行传输包括以下至少一种：同步信号块SSB传输；信道状态信息参考信号CSI-RS传输；下行控制信道PDCCH传输；物理下行共享信道PDSCH传输。
可选的，第一信息包括：所述DCI中的第一指示信息以及所述时域单元的信息；所述根据第一信息确定所述第二ED门限值，包括：
若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
第三种确定方法中，根据第二信息，确定所述第二ED门限值。
在第三种确定方法中，在步骤802之前，该ED门限值的确定还可以包括：网络设备接收第二信息，该第二信息用于指示在上行传输前的LBT时实际使用的所述第二ED门限值等于或不等于所述第一ED门限值。
可选的，所述第二信息包括以下至少一种：上行控制信息；上行数据信息；上行传输时实际传输的上行传输资源；上行传输的上行DMRS。
可选的，在上述实施例中，配置的所述第一ED门限值为所述终端共享信道占用时间COT的ED门限值；或者，配置的所述第一ED门限值为最大ED门限值。
综上所述，本申请实施例提供的ED门限值的确定方法中，可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
并且，当网络设备设置的第一ED门限值为共享COT的门限值时，网络设备可以获知终端实际使用的第二ED门限值是否为该共享COT的门限值，当终端使用的第二ED门限值为该共享COT的门限值时，可以使得网络设备在该共享COT内传输控制信道、广播信道以及广播信号，并且，在该共享COT内，网络设备向终端传输控制信道、数据信道以及参考信号。有效提高了网络设备想终端发送数据的效率。
需要说明的是，上述针对网络设备提供的ED门限值的确定方法中的相关描述均可参考上述针对终端提供的ED门限值的确定方法中的相关论述，本申请实施例在此不再赘述。
以下针对上述三种终端确定该第二ED门限值的方法，分别提供三种终端与网络设备交互的流程图。
图9针对的是上述第一种确定方法，应用该第一种确定方法的ED门限值的确定方法可以包括如下步骤：
步骤901、网络设备向终端配置第一ED门限值。
该第一ED门限值可以为终端共享COT的ED门限值，或者为最大ED门限值。
步骤902、终端接收网络设备配置的第一ED门限值。
步骤903、终端将该第一ED门限值，确定为第二ED门限值。
在图9所示的ED门限值的确定方法中，由网络设备强制终端将该网络设备向该终端配置的第一 ED门限值确定为终端LBT时实际使用的第二ED门限值。
图10针对的是上述第二种确定方法，应用该第二种确定方法的ED门限值的确定方法可以包括如下步骤：
步骤1001、网络设备向终端配置第一ED门限值。
该第一ED门限值可以为终端共享COT的ED门限值，或者为最大ED门限值。
步骤1002、终端接收网络设备配置的第一ED门限值。
步骤1003、终端根据第一信息确定第二ED门限值。
终端根据第一信息中包括的DCI中的第一指示信息以及上行传输资源外的第一符号中的至少一种，确定在上行传输前的LBT时实际使用的所述第二ED门限值。
步骤1004、网络设备根据该第一信息确定该第二ED门限值。
网络设备根据第一信息中包括的DCI中的第一指示信息以及上行传输资源外的第一符号中的至少一种，确定在上行传输前的LBT时实际使用的所述第二ED门限值。
需要说明的是，本申请实施例并不对步骤1003和步骤1004的执行顺序进行限定，也即是，步骤1003和步骤1004可以同时执行或者先执行步骤1003再执行步骤1004等。
在图10所示的ED门限值的确定方法中，当第一信息包括DCI中的第一指示信息时，由于该DCI为网络设备向终端发送的，因此，不仅终端可以确定其在上行传输前的LBT时实际使用的第二ED门限值，网络设备也可以根据其向终端发送的DCI中的第一指示信息，确定终端实际使用的第二ED门限值是否为第一ED门限值；当第一信息包括上行传输资源外的第一符号时，由于网络设备可以通过系统消息或无线资源控制(英文：Radio Resource Control，简称：RRC)信令向终端配置用于确定时隙格式的配置信息，因此，网络设备可以获知该上行传输资源包括的符号以及该上行传输资源外的每个符号的符号类型，当然，其中包括上行传输资源外的第一符号的符号类型。也即是，终端和网络设备均可以根据该第一信息确定终端实际使用的第二ED门限值是否为第一ED门限值。
图11针对的是上述第三种确定方法，应用该第三种确定方法的ED门限值的确定方法可以包括如下步骤：
步骤1101、网络设备向终端配置第一ED门限值。
该第一ED门限值可以为终端共享COT的ED门限值，或者为最大ED门限值。
步骤1102、终端接收网络设备配置的第一ED门限值。
步骤1103、终端自行选择ED门限值，将该自行选择的ED门限值，确定为第二ED门限值。
终端可以自行选择是否将第一ED门限值用作进行LBT时实际使用的第二ED门限值。
步骤1104、终端发送第二信息至所述网络设备。
终端基于自行选择的结果向网络设备发送第二信息，该第二信息可以包括上行控制信息、上行数据信息、上行传输时实际传输的上行传输资源以及上行传输的上行DMRS中的至少一个。
步骤1105、网络设备根据该第二信息确定该第二ED门限值。
网络设备可以根据该第二信息中的指示信息确定在上行传输前的LBT时实际使用的所述第二ED门限值。该指示信息可以为隐式指示信息或者显式指示信息。
在图11所示的ED门限值的确定方法中，终端自行选择其进行LBT是实际使用的第二ED门限值，然后通过第二信息通知网络设备，使得终端和网络设备均可以根据该第一信息确定终端实际使用的第二ED门限值是否为第一ED门限值。
其他与上述步骤相关的描述均可参考前述实施例，本申请实施例在此不再赘述。
图12示出了本申请实施例提供的一种ED门限值的确定装置1200，该装置包括：
接收模块1201，所述接收模块1201用于接收网络设备配置的第一ED门限值；
处理模块1202，所述处理模块1202用于确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
综上所述，本申请实施例提供的ED门限值的确定装置，可以确定出上行传输前的LBT时实际 使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
可选的，所述处理模块1202，用于：
将所述第一ED门限值，确定为所述第二ED门限值。
可选的，所述处理模块1202，用于：
根据第一信息确定所述第二ED门限值。
可选的，所述第一信息包括以下至少一种：
下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
时域单元的信息，所述时域单元不用于所述上行传输。
可选的，所述处理模块1202，用于：
当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
其中，所述第一指示信息为显式指示信息或者隐式指示信息。
可选的，所述第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
可选的，所述处理模块1202，用于：
当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
可选的，所述第一条件包括以下至少一种：
所述时域单元的信息不为上行符号；
所述时域单元的信息与预配置的下行传输所使用的下行传输资源所包括的符号重合或者部分重合。
可选的，所述第一符号包括以下至少一种：
所述上行传输资源所包括的符号中的最后一个符号后的第一个符号；
所述上行传输资源所包括的符号中的最后一个符号后连续的至少一个符号，所述至少一个符号包括所述最后一个符号后的第一个符号；
所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
可选的，所述预配置的下行传输包括以下至少一种：
同步信号块SSB传输；
信道状态信息参考信号CSI-RS传输；
下行控制信道PDCCH传输；
物理下行共享信道PDSCH传输。
所述第一信息包括：所述DCI中的第一指示信息以及时域单元的信息；
所述处理模块1202，用于：
若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
可选的，如图13所示，所述装置1200还包括：
发送模块1203，所述发送模块1203用于将确定的所述第二ED门限值，通过第二信息发送至所述网络设备，所述第二信息用于指示所述第二ED门限值。
可选的，所述第二信息包括以下至少一种：上行控制信息；上行数据信息；上行传输时实际传输的上行传输资源；上行传输的上行解调参考信号DMRS。
可选的，所述第一ED门限值为共享信道占用时间COT的ED门限值；或者，所述第一ED门限值为最大ED门限值。
综上所述，本申请实施例提供的ED门限值的确定方法中，可以确定出上行传输前的LBT时实 际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
并且，当网络设备设置的第一ED门限值为共享COT的门限值时，网络设备可以获知终端实际使用的第二ED门限值是否为该共享COT的门限值，当终端使用的第二ED门限值为该共享COT的门限值时，可以使得网络设备在该共享COT内传输控制信道、广播信道以及广播信号，并且，在该共享COT内，网络设备向终端传输控制信道、数据信道以及参考信号。有效提高了网络设备想终端发送数据的效率。
图14示出了本申请实施例提供的另一种ED门限值的确定装置1400，所述装置1400包括：
处理模块1401，所述处理模块1401用于向终端配置第一ED门限值；
所述处理模块1401用于确定第二ED门限值，所述第二ED门限值用于所述终端在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
综上所述，本申请实施例提供的ED门限值的确定装置，可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
可选的，所述处理模块1401，用于：
将所述第一ED门限值，确定为所述第二ED门限值。
可选的，所述处理模块1401，用于：
根据第一信息确定所述第二ED门限值。
可选的，所述第一信息包括以下至少一种：
下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
时域单元的信息，所述时域单元不用于所述上行传输。
可选的，所述处理模块1401，用于：
当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
其中，所述第一指示信息为显式指示信息或者隐式指示信息。
可选的，所述第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
可选的，所述处理模块1401，用于：
当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
可选的，所述第一条件包括以下至少一种：所述时域单元的信息不为上行符号；所述时域单元的信息与预配置的下行传输所使用的下行传输资源包括的符号重合或者部分重合。
可选的，所述时域单元的信息包括以下至少一种：
所述上行传输资源包括的符号中的最后一个符号后的第一个符号；
所述上行传输资源包括的符号中的最后一个符号后连续的至少一个的符号，所述至少一个符号包括所述最后一个符号后的第一个符号；
所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
可选的，所述第一预配置的下行传输包括以下至少一种：同步信号块SSB传输；信道状态信息参考信号CSI-RS传输；下行控制信道PDCCH传输；物理下行共享信道PDSCH传输。
可选的，所述第一信息同时包括：所述DCI中的第一指示信息，以及所述时域单元的信息；
所述处理模块1401，用于：
若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
可选的，如图15所示，所述装置1400包括：
接收模块1402，所述接收模块1402用于在确定所述第二ED门限值之前，接收第二信息，所述第二信息用于指示在上行传输前的LBT时实际使用的所述第二ED门限值等于或不等于所述第一ED门限值；
所述处理模块1401，用于：
根据所述第二信息，确定所述第二ED门限值。
可选的，所述第二信息包括以下至少一种：上行控制信息；上行数据信息；上行传输时实际传输的上行传输资源；上行传输的上行解调参考信号DMRS。
可选的，配置的所述第一ED门限值为所述终端共享信道占用时间COT的ED门限值；或者，配置的所述第一ED门限值为最大ED门限值。
综上所述，本申请实施例提供的ED门限值的确定装置，可以确定出上行传输前的LBT时实际使用的ED门限值，使得网络设备与终端之间可以就终端在LBT时实际使用的ED门限值达成一致，使得网络设备可以根据该第二ED门限值确定向终端传输数据的传输方式。
并且，当网络设备设置的第一ED门限值为共享COT的门限值时，网络设备可以获知终端实际使用的第二ED门限值是否为该共享COT的门限值，当终端使用的第二ED门限值为该共享COT的门限值时，可以使得网络设备在该共享COT内传输控制信道、广播信道以及广播信号，并且，在该共享COT内，网络设备向终端传输控制信道、数据信道以及参考信号。有效提高了网络设备想终端发送数据的效率。
图16示出了本申请一个示例性实施例提供的通信设备，即终端或网络设备的结构示意图，该通信设备包括：处理器1601、接收器1602、发射器1603、存储器1604和总线1605。
处理器1601包括一个或者一个以上处理核心，处理器1201通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器1602和发射器1603可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器1604通过总线1605与处理器1601相连。
存储器1604可用于存储至少一个指令，处理器1601用于执行该至少一个指令，以实现上述各个方法实施例中的第一IAB网络设备执行的各个步骤。
此外，存储器1604可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
本申请提供了一种计算机可读存储介质，所述存储介质中存储有至少一条指令，所述至少一条指令由所述处理器加载并执行以实现上述各个方法实施例提供的ED门限值的确定方法。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (59)

  1. 一种能量检测ED门限值的确定方法，其特征在于，所述方法包括：
    接收网络设备配置的第一ED门限值；
    确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
  2. 根据权利要求1所述的方法，其特征在于，所述确定第二ED门限值，包括：
    将所述第一ED门限值，确定为所述第二ED门限值。
  3. 根据权利要求1所述的方法，其特征在于，所述确定第二ED门限值，包括：
    根据第一信息确定所述第二ED门限值。
  4. 根据权利要求3所述的方法，其特征在于，所述第一信息包括以下至少一种：
    下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
    时域单元的信息，所述时域单元不用于所述上行传输。
  5. 根据权利要求4所述的方法，其特征在于，所述根据第一信息确定所述第二ED门限值，包括：
    当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
    其中，所述第一指示信息为显式指示信息或者隐式指示信息。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
  7. 根据权利要求4所述的方法，其特征在于，所述根据第一信息确定所述第二ED门限值，包括：
    当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
  8. 根据权利要求7所述的方法，其特征在于，所述第一条件包括以下至少一种：
    所述时域单元的信息不为上行符号；
    所述时域单元的信息与预配置的下行传输所使用的下行传输资源所包括的符号重合或者部分重合。
  9. 根据权利要求4至8任一所述的方法，其特征在于，所述时域单元的信息包括以下至少一种：
    所述上行传输资源所包括的符号中的最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号后连续的至少一个符号，所述至少一个符号包括所述最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
  10. 根据权利要求8所述的方法，其特征在于，所述预配置的下行传输包括以下至少一种：
    同步信号块SSB传输；
    信道状态信息参考信号CSI-RS传输；
    下行控制信道PDCCH传输；
    物理下行共享信道PDSCH传输。
  11. 根据权利要求4所述的方法，其特征在于，所述第一信息包括：所述DCI中的第一指示信息以及所述时域单元的信息；
    所述根据第一信息确定所述第二ED门限值，包括：
    若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
  12. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    将确定的所述第二ED门限值，通过第二信息发送至所述网络设备，所述第二信息用于指示所述第二ED门限值。
  13. 根据权利要求12所述的方法，其特征在于，所述第二信息包括以下至少一种：
    上行控制信息；
    上行数据信息；
    上行传输时实际传输的上行传输资源；
    上行传输的上行解调参考信号DMRS。
  14. 根据权利要求1至13所述的方法，其特征在于，所述第一ED门限值为共享信道占用时间COT的ED门限值；
    或者，
    所述第一ED门限值为最大ED门限值。
  15. 一种能量检测ED门限值的确定方法，其特征在于，所述方法包括：
    向终端配置第一ED门限值；
    确定第二ED门限值，所述第二ED门限值用于所述终端在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
  16. 根据权利要求15所述的方法，其特征在于，所述确定所第二ED门限值，包括：
    将所述第一ED门限值，确定为所述第二ED门限值。
  17. 根据权利要求15所述的方法，其特征在于，所述方法包括：
    根据第一信息确定所述第二ED门限值。
  18. 根据权利要求17所述的方法，其特征在于，所述第一信息包括以下至少一种：
    下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
    时域单元的信息，所述时域单元不用于所述上行传输。
  19. 根据权利要求18所述的方法，其特征在于，所述根据第一信息确定所述第二ED门限值，包括：
    当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
    其中，所述第一指示信息为显式指示信息或者隐式指示信息。
  20. 根据权利要求18或19所述的方法，其特征在于，所述第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
  21. 根据权利要求18所述的方法，其特征在于，所述根据第一信息确定所述第二ED门限值，包括：
    当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
  22. 根据权利要求21所述的方法，其特征在于，所述第一条件包括以下至少一种：
    所述时域单元的信息不为上行符号；
    所述时域单元的信息与预配置的下行传输所使用的下行传输资源包括的符号重合或者部分重合。
  23. 根据权利要求18至22任一所述的方法，其特征在于，所述时域单元的信息包括以下至少一种：
    所述上行传输资源包括的符号中的最后一个符号后的第一个符号；
    所述上行传输资源包括的符号中的最后一个符号后连续的至少一个的符号，所述至少一 个符号包括所述最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
  24. 根据权利要求22所述的方法，其特征在于，所述第一预配置的下行传输包括以下至少一种：
    同步信号块SSB传输；
    信道状态信息参考信号CSI-RS传输；
    下行控制信道PDCCH传输；
    物理下行共享信道PDSCH传输。
  25. 根据权利要求18所述的方法，其特征在于，所述第一信息包括：所述DCI中的第一指示信息以及所述时域单元的信息；
    所述根据第一信息确定在上行传输前的LBT时实际使用的所述第二ED门限值，包括：
    若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
  26. 根据权利要求15所述的方法，其特征在于，所述确定所第二ED门限值之前，所述方法包括：
    接收第二信息，所述第二信息用于指示所述第二ED门限值；
    所述确定所第二ED门限值，包括：
    根据所述第二信息，确定所第二ED门限值。
  27. 根据权利要求26所述的方法，其特征在于，所述第二信息包括以下至少一种：
    上行控制信息；
    上行数据信息；
    上行传输时实际传输的上行传输资源；
    上行传输的上行解调参考信号DMRS。
  28. 根据权利要求15至27任一所述的方法，其特征在于，配置的所述第一ED门限值为所述终端共享信道占用时间COT的ED门限值；
    或者，
    配置的所述第一ED门限值为最大ED门限值。
  29. 一种能量检测ED门限值的确定装置，其特征在于，所述装置包括：
    接收模块，所述接收模块用于接收网络设备配置的第一ED门限值；
    处理模块，所述处理模块用于确定第二ED门限值，所述第二ED门限值用于在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
  30. 根据权利要求29所述的装置，其特征在于，所述处理模块，用于：
    将所述第一ED门限值，确定为所述第二ED门限值。
  31. 根据权利要求30所述的装置，其特征在于，所述处理模块，用于：
    根据第一信息确定所述第二ED门限值。
  32. 根据权利要求31所述的装置，其特征在于，所述第一信息包括以下至少一种：
    下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
    时域单元的信息，所述时域单元不用于所述上行传输。
  33. 根据权利要求32所述的装置，其特征在于，所述处理模块，用于：
    当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
    其中，所述第一指示信息为显式指示信息或者隐式指示信息。
  34. 根据权利要求32或33所述的装置，其特征在于，所述第一指示信息为所述DCI中 的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
  35. 根据权利要求34所述的装置，其特征在于，所述处理模块，用于：
    当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
  36. 根据权利要求35所述的装置，其特征在于，所述第一条件包括以下至少一种：
    所述时域单元的信息不为上行符号；
    所述时域单元的信息与预配置的下行传输所使用的下行传输资源所包括的符号重合或者部分重合。
  37. 根据权利要求32至38任一所述的装置，其特征在于，所述第一符号包括以下至少一种：
    所述上行传输资源所包括的符号中的最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号后连续的至少一个符号，所述至少一个符号包括所述最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
  38. 根据权利要求36所述的装置，其特征在于，所述预配置的下行传输包括以下至少一种：
    同步信号块SSB传输；
    信道状态信息参考信号CSI-RS传输；
    下行控制信道PDCCH传输；
    物理下行共享信道PDSCH传输。
  39. 根据权利要求32所述的装置，其特征在于，所述第一信息包括：所述DCI中的第一指示信息以及时域单元的信息；
    所述处理模块，用于：
    若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
  40. 根据权利要求29所述的装置，其特征在于，所述发送模块，用于：
    将确定的所述第二ED门限值，通过第二信息发送至所述网络设备，所述第二信息用于指示所述第二ED门限值。
  41. 根据权利要求40所述的装置，其特征在于，所述第二信息包括以下至少一种：
    上行控制信息；
    上行数据信息；
    上行传输时实际传输的上行传输资源；
    上行传输的上行解调参考信号DMRS。
  42. 根据权利要求29至41所述的装置，其特征在于，所述第一ED门限值为共享信道占用时间COT的ED门限值；
    或者，
    所述第一ED门限值为最大ED门限值。
  43. 一种能量检测ED门限值的确定装置，其特征在于，所述装置包括：
    处理模块，所述处理模块用于向终端配置第一ED门限值；
    所述处理模块用于确定第二ED门限值，所述第二ED门限值用于所述终端在上行传输前进行先听后说LBT，所述第二ED门限值等于或不等于所述第一ED门限值。
  44. 根据权利要求43所述的装置，其特征在于，所述处理模块，用于：
    将所述第一ED门限值，确定为所述第二ED门限值。
  45. 根据权利要求44所述的装置，其特征在于，所述处理模块，用于：
    根据第一信息确定所述第二ED门限值。
  46. 根据权利要求45所述的装置，其特征在于，所述第一信息包括以下至少一种：
    下行控制信息DCI中的第一指示信息，所述DCI是用于调度所述上行传输的DCI，或者，所述DCI是用于触发预配置的上行传输的DCI，或者，所述DCI是公共组指示控制信号；
    时域单元的信息，所述时域单元不用于所述上行传输。
  47. 根据权利要求46所述的装置，其特征在于，所述处理模块，用于：
    当所述第一指示信息指示采用所述第一ED门限值作为所述第二ED门限值时，确定所述第一ED门限值为所述第二ED门限值；
    其中，所述第一指示信息为显式指示信息或者隐式指示信息。
  48. 根据权利要求46或47所述的装置，其特征在于，所述第一指示信息为所述DCI中的指定比特域中的第一比特，所述指定比特域为所述DCI中的预留比特域或者为复用比特域。
  49. 根据权利要求46所述的装置，其特征在于，所述处理模块，用于：
    当所述时域单元的信息满足第一条件时，确定所述时域单元的信息用于指示所述第二ED门限值为所述第一ED门限值。
  50. 根据权利要求49所述的装置，其特征在于，所述第一条件包括以下至少一种：
    所述时域单元的信息不为上行符号；
    所述时域单元的信息与预配置的下行传输所使用的下行传输资源包括的符号重合或者部分重合。
  51. 根据权利要求46至50任一所述的装置，其特征在于，所述时域单元的信息包括以下至少一种：
    所述上行传输资源包括的符号中的最后一个符号后的第一个符号；
    所述上行传输资源包括的符号中的最后一个符号后连续的至少一个的符号，所述至少一个符号包括所述最后一个符号后的第一个符号；
    所述上行传输资源所包括的符号中的最后一个符号起，至距离所述上行传输资源最近的预配置的下行传输资源所包括的符号中的第一个符号之间的至少一个符号。
  52. 根据权利要求50所述的装置，其特征在于，所述第一预配置的下行传输包括以下至少一种：
    同步信号块SSB传输；
    信道状态信息参考信号CSI-RS传输；
    下行控制信道PDCCH传输；
    物理下行共享信道PDSCH传输。
  53. 根据权利要求46所述的装置，其特征在于，所述第一信息同时包括：所述DCI中的第一指示信息，以及所述时域单元的信息；
    所述处理模块，用于：
    若所述第一指示信息不指示采用所述第一ED门限值作为所述第二ED门限值，根据所述第一指示信息和所述时域单元的信息，确定所述第二ED门限值。
  54. 根据权利要求43所述的装置，其特征在于，所述装置包括：
    接收模块，所述接收模块用于在确定所第二ED门限值之前，接收第二信息，所述第二信息用于指示在上行传输前的LBT时实际使用的所述第二ED门限值等于或不等于所述第一ED门限值；
    所述处理模块，用于：
    根据所述第二信息，确定所第二ED门限值。
  55. 根据权利要求54所述的装置，其特征在于，所述第二信息包括以下至少一种：
    上行控制信息；
    上行数据信息；
    上行传输时实际传输的上行传输资源；
    上行传输的上行解调参考信号DMRS。
  56. 根据权利要求43至55任一所述的装置，其特征在于，配置的所述第一ED门限值为所述终端共享信道占用时间COT的ED门限值；
    或者，
    配置的所述第一ED门限值为最大ED门限值。
  57. 一种终端，其特征在于，所述终端包括处理器和存储器，所述存储器存储有至少一条指令，所述至少一条指令用于被所述处理器执行以实现权利要求1至14任一项方法的步骤。
  58. 一种网络设备，其特征在于，所述网络设备包括处理器和存储器，所述存储器存储有至少一条指令，所述至少一条指令用于被所述处理器执行以实现权利要求15至28任一项方法的步骤。
  59. 一种计算机可读存储介质，所述计算机可读存储介质上存储有指令，其特征在于，所述指令被处理器执行时实现权利要求1至14任一项方法的步骤，或者，用于实现权利要求15至28任一项方法的步骤。
PCT/CN2019/119294 2019-11-18 2019-11-18 能量检测门限值的确定方法及装置 WO2021097632A1 (zh)

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