WO2020221057A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication Download PDF

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Publication number
WO2020221057A1
WO2020221057A1 PCT/CN2020/085788 CN2020085788W WO2020221057A1 WO 2020221057 A1 WO2020221057 A1 WO 2020221057A1 CN 2020085788 W CN2020085788 W CN 2020085788W WO 2020221057 A1 WO2020221057 A1 WO 2020221057A1
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WIPO (PCT)
Prior art keywords
cot
time slot
slot
symbols
information
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PCT/CN2020/085788
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English (en)
Chinese (zh)
Inventor
吴霁
张佳胤
贾琼
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华为技术有限公司
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Publication of WO2020221057A1 publication Critical patent/WO2020221057A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of communication, and more specifically, to a communication method and communication device.
  • the 3rd Generation Partnership Project (3GPP) introduced license assisted access (license assisted access) in version 13 (release-13, R-13) and version 14 (release-14, R-14), respectively.
  • LAA license assisted access
  • eLAA enhanced LAA
  • the sending end device first monitors whether the unlicensed channel (or unlicensed spectrum) is free before sending a signal. For example, the sender device confirms whether the channel is free through a listen before talk (LBT) mechanism.
  • LBT listen before talk
  • the sender device obtains the right to use the channel.
  • the sender device occupies the channel within the channel occupancy time (COT).
  • COT channel occupancy time
  • the sender device may share the obtained channel usage rights in the COT with other devices.
  • the sending end device is a network device
  • the network device can share the channel use right to the terminal device for use, that is, allow the terminal device to transmit in the COT.
  • the present application provides a communication method and a communication device, which can effectively indicate information about channel occupation time and ensure data transmission performance.
  • a communication method is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in this application.
  • the method may include: the terminal device receives instruction information from the network device, the instruction information is used to indicate the channel occupation time COT information in the last time slot; based on the COT information in the last time slot, the terminal device Communicate within the COT.
  • the terminal device can determine the channel occupancy time (COT) information in the last slot (slot) through the received indication information, for example, including but not limited to: it can determine the information in the last slot Which symbols are located in the COT or in the last time slot and which symbols are located outside the COT, another example, can determine the symbols located in the COT in the last time slot, and another example, can determine the symbols located outside the COT in the last time slot and many more.
  • COT channel occupancy time
  • the terminal equipment can accurately determine the specific position of the COT, such as determining which symbols in the last time slot can be used for uplink and downlink transmission, etc., so as to avoid unnecessary use of the terminal equipment Data transmission or analysis of data, etc., thereby avoiding waste of resources and improving data transmission performance.
  • the terminal device Based on the information of the COT in the last time slot, the terminal device communicates in the COT. It can also be understood that the terminal device communicates in the COT based on the information of the time slot where the COT end position is located.
  • the indication information is used to indicate that the COT is in the last time slot, including: the indication information is used to indicate that the COT is in the last time slot The status of the symbol.
  • the indication information is used to indicate the information of the COT in the last time slot, including: the indication information is used to indicate: the last time slot And/or symbols located outside the COT in the last time slot.
  • the terminal device can determine which symbols are located in the COT in the last time slot and/or which symbols are located outside the COT through the received instruction information, so that the terminal device can determine the last one Which symbols of the time slot can be used for data transmission, to prevent terminal equipment from performing data transmission or parsing data on symbols located outside the COT, and avoid waste of resources.
  • the indication information includes a slot format indication SFI of the first time slot; the method further includes: the terminal device according to the first time slot SFI, which determines the uplink and downlink configuration information of the symbol occupied by the COT in the last time slot.
  • the terminal equipment can determine the uplink and downlink configuration information of the symbol occupied by the COT in the last time slot according to the SFI of other time slots (for example, the first slot), so as to obtain the corresponding uplink and downlink configuration.
  • the terminal equipment can determine the uplink and downlink configuration information of the symbol occupied by the COT in the last time slot according to the SFI of other time slots (for example, the first slot), so as to obtain the corresponding uplink and downlink configuration.
  • the terminal equipment can determine the uplink and downlink configuration information of the symbol occupied by the COT in the last time slot according to the SFI of other time slots (for example, the first slot), so as to obtain the corresponding uplink and downlink configuration.
  • the first time slot is adjacent to the last time slot.
  • the first time slot referenced by the terminal device can be a time slot adjacent to the last time slot, and the first time slot can be a time slot located in the COT or a time slot located outside the COT. Gap.
  • the SFI received by the terminal device is (a1, a2, a3), assuming that a2 is the SFI corresponding to the last time slot, then the uplink and downlink configuration corresponding to a2 can refer to the uplink and downlink configuration corresponding to a1, or refer to a3 Corresponding uplink and downlink configuration.
  • a1, a2, and a3 are integers greater than or equal to 0, and less than 255.
  • the information of the last time slot occupied by the COT includes one or more of the following information: the symbol occupied by the COT in the last time slot The number of symbols occupied by the COT in the last time slot, the number of time slots occupied by the COT, the information of the time slot where the start position of the COT is located, or the total number of symbols occupied by the COT .
  • a communication method is provided.
  • the method may be executed by a network device, or may also be executed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method may include: the network device determines the information that the channel occupation time COT is in the last time slot; the network device sends instruction information to the terminal device, the instruction information is used to indicate the information that the COT is in the last time slot.
  • the network device can indicate the channel occupancy time (COT) information in the last slot (slot) to the terminal device, so that the terminal device can determine the information of the last slot, and the terminal device can be accurate
  • COT channel occupancy time
  • the indication information is used to indicate that the COT is in the last time slot, including: the indication information is used to indicate that the COT is in the last time slot The status of the symbol.
  • the indication information is used to indicate the information of the COT in the last time slot, including: the indication information is used to indicate: the last time slot And/or symbols located outside the COT in the last time slot.
  • the indication information includes a time slot format indicator SFI of the first time slot, and the SFI of the first time slot is used by the terminal device to determine the COT The uplink and downlink configuration information of the symbols occupied in the last time slot.
  • the first time slot is adjacent to the last time slot.
  • the information of the last time slot occupied by the COT includes one or more of the following information: the symbol occupied by the COT in the last time slot The number of symbols occupied by the COT in the last time slot, the number of time slots occupied by the COT, the information of the time slot where the start position of the COT is located, or the total number of symbols occupied by the COT .
  • the method further includes: in the case where the symbols occupied by the COT in the last time slot are part of the symbols in the last time slot, The network device sends the instruction information to the terminal device.
  • the network equipment can provide the terminal equipment to the terminal equipment when the last time slot is an incomplete time slot, that is, when the symbols occupied by the COT in the last time slot are part of the symbols in the last time slot Send the above instructions.
  • a communication device configured to execute the method provided in the foregoing first aspect.
  • the communication device may include a module for executing the method provided in the first aspect.
  • a communication device is provided, and the communication device is configured to execute the method provided in the second aspect.
  • the communication device may include a module for executing the method provided in the second aspect.
  • a communication device in a fifth aspect, includes a memory and a processor, the memory is configured to store instructions, and the processor is configured to execute instructions stored in the memory, so that the communication device executes the first aspect Provided method.
  • a communication device in a sixth aspect, includes a memory and a processor, the memory is configured to store instructions, and the processor is configured to execute the instructions stored in the memory, so that the communication device performs the second aspect. Provided method.
  • a chip in a seventh aspect, includes a processing module and a communication interface, the processing module is configured to control the communication interface to communicate with the outside, and the processing module is also configured to implement the method provided in the first aspect.
  • a chip in an eighth aspect, includes a processing module and a communication interface, the processing module is configured to control the communication interface to communicate with the outside, and the processing module is also configured to implement the method provided in the second aspect.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device realizes the first aspect and any possible implementation of the first aspect The method in the way.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device realizes the second aspect and any possible realization of the second aspect The method in the way.
  • a computer program product containing instructions which when executed by a computer causes a communication device to implement the method provided in the first aspect.
  • a computer program product containing instructions is provided, which when executed by a computer causes a communication device to implement the method provided in the second aspect.
  • a communication system including the aforementioned terminal device and network device.
  • the network device sends information indicating that the channel occupancy time (COT) is in the last slot (slot) to the terminal device.
  • the information about the slot where the COT ends includes But not limited to: it is possible to determine which symbols in the last slot are located in the COT or which symbols in the last slot are located outside the COT, another example, the symbols located in the COT in the last slot can be determined, another example, the last one can be determined Symbols outside the COT in the slot, etc.
  • the terminal equipment can determine the information of the last time slot, so that the terminal equipment can accurately determine the specific position of the COT, such as determining which symbols in the last time slot can be used for uplink and downlink transmission, etc., avoiding unnecessary data for the terminal equipment Transmission or analysis of data, etc., thereby avoiding waste of resources and improving data transmission performance.
  • Fig. 1 shows a schematic diagram of a communication system applicable to an embodiment of the present application
  • Figure 2 shows another schematic diagram of a communication system suitable for an embodiment of the present application
  • FIG. 3 shows a schematic diagram of an LBT interception mechanism applicable to an embodiment of the present application
  • FIG. 4 shows a schematic diagram of another LBT interception mechanism applicable to an embodiment of the present application
  • Fig. 5 is a schematic diagram of a communication method proposed according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of COT applicable to an embodiment of the present application.
  • FIG. 7 is another schematic diagram of COT applicable to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the technical solutions of the embodiments of this application can be applied to various communication systems, for example: the future 5th generation (5G) system or new radio (NR), global system for mobile communications, GSM ) System, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long-term evolution (long-term evolution) term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), global interconnection microwave access Into (worldwide interoperability for microwave access, WiMAX) communication systems, etc.
  • 5G future 5th generation
  • NR global system for mobile communications
  • GSM Global System for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long-term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global inter
  • V2X vehicle-to-vehicle
  • V2I vehicle to roadside infrastructure
  • V2P vehicle-to-pedestrian
  • V2N vehicle-to-network
  • FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1, and the wireless communication system 100 may also include at least one terminal device, such as the terminal device 121 shown in FIG. To terminal equipment 123. Both network equipment and terminal equipment can be configured with multiple antennas, and the network equipment and terminal equipment can communicate using multiple antenna technology.
  • the network device when a network device communicates with a terminal device, the network device may manage one or more cells, and there may be an integer number of terminal devices in a cell.
  • the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system.
  • the cell is denoted as cell #1.
  • the network device 111 may be a network device in the cell #1, or in other words, the network device 111 may serve a terminal device (for example, the terminal device 121) in the cell #1.
  • a cell can be understood as an area covered by a wireless signal of a network device.
  • FIG. 2 is another schematic diagram of a wireless communication system 200 applicable to an embodiment of the present application. As shown in Figure 2, the technical solutions of the embodiments of the present application can also be applied to D2D communication.
  • the wireless communication system 200 includes a plurality of terminal devices, such as the terminal device 124 to the terminal device 126 in FIG. 2.
  • the terminal device 124 to the terminal device 126 can directly communicate with each other.
  • the terminal device 124 and the terminal device 125 may send data to the terminal device 126 separately or at the same time.
  • FIGS. 1 and 2 are only simplified schematic diagrams for ease of understanding.
  • the communication system 100 or the communication system 200 may further include other network devices or other terminal devices, which are not shown in the figure.
  • the network device in the wireless communication system may be any device with a wireless transceiver function.
  • the equipment includes, but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC) , Base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), wireless fidelity (Wireless Fidelity, WIFI) system Access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR ,
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU for short).
  • CU implements part of the functions of gNB
  • DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), or the CU can be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal equipment in the wireless communication system may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.
  • the embodiment of this application does not limit the application scenario.
  • the smallest unit of time domain resources The embodiment of the present application does not limit the time length of a symbol.
  • the symbols may include uplink symbols and downlink symbols.
  • the uplink symbols may be called single carrier-frequency division multiple access (SC-FDMA) symbols or orthogonal frequency division multiple access (orthogonal frequency division multiple access) symbols, for example.
  • the symbol may be another example of the resource unit.
  • the time slot is a period of time resource.
  • a time slot may be the smallest scheduling unit of time.
  • a slot format contains 14 OFDM symbols, and the CP of each OFDM symbol is a normal CP (normal CP); a slot format contains 12 OFDM symbols, and the CP of each OFDM symbol is an extended CP ( extended CP);
  • a slot format contains 7 OFDM symbols, and the CP of each OFDM symbol is the normal CP.
  • the OFDM symbols in a time slot can be all used for uplink transmission; all can be used for downlink transmission; or some of them can be used for downlink transmission, some for uplink transmission, and some are reserved for no transmission. It should be understood that the above examples are merely illustrative and should not constitute any limitation to the application. For the sake of system forward compatibility, the slot format is not limited to the above example.
  • time-frequency resources may include resources in the time domain and resources in the frequency domain.
  • the time-frequency resource may include one or more time domain units (or, it may also be referred to as a time unit), and in the frequency domain, the time-frequency resource may include one or more frequency domain units.
  • a time domain unit can be a symbol, or a mini-slot, or a time slot (slot), or a subframe (subframe).
  • the duration of a subframe in the time domain may be 1 millisecond (ms).
  • One mini-slot may include at least one symbol (for example, 2 symbols or 4 symbols or 7 symbols or 14 symbols, or any number of symbols less than or equal to 14 symbols).
  • the above-mentioned time-domain unit sizes are only for the convenience of understanding the solutions of the application, and should not be understood as limiting the present invention. It is understandable that the above-mentioned time-domain unit sizes may be other values, which are not limited in this application.
  • a frequency domain unit can be a resource block (resource block, RB), or a resource block group (resource block group, RBG), or a predefined subband (subband), or a precoding resource block group (precoding resource block group).
  • resource block, PRG resource block group
  • BWP bandwidth part
  • data or “information” can be understood as bits generated after information blocks are coded, or “data” or “information” can also be understood as modulation symbols generated after information blocks are coded and modulated.
  • an RB is an example of a resource unit, and the size of the RB may be a resource defined in the NR protocol, or a resource defined in a future protocol, or other names may be used instead.
  • the control resource set in the time domain may also be one or more time slots, radio frames, subframes, mini-slots or sub-slots, or transmission time intervals (TTI). The application embodiment does not specifically limit this.
  • the frequency spectrum used by the wireless communication system can be divided into two categories, licensed spectrum and unlicensed spectrum.
  • the carrier on the licensed spectrum is called the licensed carrier
  • the carrier on the unlicensed spectrum is called the unlicensed carrier.
  • LBT long-term evolution of the unlicensed spectrum
  • LBT is A carrier sense multiple access (CSMA) technology.
  • CSMA carrier sense multiple access
  • LBT is based on energy detection (energy detection, ED) to support the coexistence of different nodes and technologies.
  • ED energy detection
  • the preamble detection-based mechanism in the WiFi system has more advantages.
  • TXOP transmission opportunity
  • the transmission opportunity (TXOP) length is carried in the payload (payload) of the preamble, and the backoff depends on the preamble detection and the demodulation/decoding of the payload.
  • the transmitting end device can send a channel occupation signal to other surrounding devices.
  • the channel occupation signal indicates to other devices the length of time that the transmitting end device needs to occupy on the competing channel, thereby avoiding collisions of other devices. Improve communication efficiency. Transmission or reception can be performed within this time period.
  • the sending end device may be a network device, for example, the network device 111 in the communication system 100.
  • the sending end device may also be a terminal device, for example, the terminal device 121, or the terminal device 122, or the terminal device 123 in the communication system 100.
  • the LBT initiated by the network device is successful, it is determined that it can communicate with the terminal device. If data is sent during the communication, the network device is the sending device; if it is receiving data during the communication, the network device is Receiving device. If the LBT initiated by the terminal device is successful, it is determined that it can communicate with the network device. If it is sending data during the communication, the terminal device is the sending device; if it is receiving data during the communication, the network device is the receiving device.
  • the sending end device After the LBT is successful, the sending end device sends a channel occupation signal, which is used to indicate to other devices the length of time that the sending end device will use the channel on the channel that it is competing for.
  • the sender device obtains the right to use the channel.
  • the sender device occupies the channel within the channel occupancy time (COT).
  • COT channel occupancy time
  • the COT may be configured by the network device, or specified by the standard, or pre-stored, etc., which is not limited in the embodiment of the present application. In other words, the sender device can transmit in the COT without being disturbed by other devices.
  • the COT can be less than or equal to the maximum channel occupancy time (maximum channel occupancy time, MCOT), or it can be TXOP.
  • COT channel occupation time for description.
  • the sending end device when the sending end device is a network device, the transmission in the corresponding COT is downlink transmission; when the sending end device is a terminal device, the transmission in the corresponding COT is uplink transmission.
  • the sender device may share the obtained channel usage rights in the COT with other devices.
  • the sending end device when the sending end device is a network device, the network device can share the channel use right to the terminal device for use, that is, allow the terminal device to transmit in the COT. In other words, there will be a switch between uplink transmission and downlink transmission within a certain COT. This switching can be one or multiple times.
  • FIG 3 One type of LBT listening mechanism is shown in Figure 3, where the LBT device can perform independent backoff on multiple carriers, such as component carriers (CC).
  • CC component carriers
  • the LBT device can perform independent backoff on multiple carriers, such as component carriers (CC).
  • CC component carriers
  • the LBT device can perform independent backoff on multiple carriers, such as component carriers (CC).
  • CC component carriers
  • the competing node Wi-Fi is occupied, that is, when there is a Wi-Fi protocol data unit on carrier 2
  • the LBT device backs off independently on carrier 1, carrier 3, and carrier 4 (ie self-backoff)
  • Busy extended idle channel assessment can be understood as estimating the length of the channel occupied by the LBT device on carrier 2.
  • the LBT device backs off independently on carrier 2 and carrier 3, and performs busy extended idle channel assessment on carrier 4.
  • the busy initial idle channel assessment can be understood as the idle channel assessment performed before the WiFi node is occupied.
  • the idle initial channel assessment can be understood as the idle channel assessment performed before the base station is occupied.
  • the busy extended idle channel assessment can be understood as the channel assessment performed during the occupation of the WiFi node.
  • the idle extension idle channel assessment can be understood as the channel assessment performed before data transmission.
  • Carrier 1 to carrier 4 in Fig. 3 specifically, as shown in Fig. 3, when LBT self-backoffs on carrier 1 and carrier 3, no data is transmitted on carrier 4.
  • the device needs to do an additional one-shot clear channel assessment (one-shot CCA) to ensure that all carriers are free.
  • the initial idle channel assessment duration is idle. If all the carriers are idle, the base station transmits on the idle carriers at the same time. For example, a duration may be 25 microseconds (us).
  • the LBT device only performs back-off on a selected component carrier.
  • back-off is performed on the selected carrier.
  • initial idle channel assessment on carrier 1, carrier 2, and carrier 3 (as shown in the busy initial idle channel assessment time slot in Figure 4). That is, when the backoff ends, one-shot CCA is performed on other component carriers. If the component carrier is idle, data transmission is performed; if the component carrier is not idle, data transmission cannot be performed on the component carrier this time.
  • the busy initial idle channel assessment can be understood as the idle channel assessment performed before the WiFi node is occupied.
  • the idle initial channel assessment can be understood as the idle channel assessment performed before the base station is occupied.
  • the busy extended idle channel assessment can be understood as the channel assessment performed during the occupation of the WiFi node.
  • the idle extension idle channel assessment can be understood as the channel assessment performed before data transmission.
  • the device performing LBT may be a communication device in a 5G system or a next-generation system, such as LAA LTE, WiFi, NR-U, or other communication devices operating in an unlicensed frequency band.
  • the interference received by the device performing LBT in Figure 3 or Figure 4 comes from the WiFi system.
  • the interference received by the device performing LBT can also come from 5G systems or next-generation systems, such as LAA LTE, NR-U or Other communication systems working in unlicensed frequency bands are not limited in this application.
  • the LBT interception mechanism adopted in the embodiment of the present application is not limited to the interception mechanism shown in FIG. 3 or FIG. 4 above.
  • the time domain can be divided into multiple wireless frames, each wireless frame may be 10 milliseconds (ms) in length, for example, and one wireless frame may include multiple time slots.
  • One time slot may include, for example, 14 orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • the time domain length of one slot may be 1ms.
  • the transmission direction of these OFDM symbols in a slot can be: downlink (DL), uplink (DL), or flexible.
  • DL downlink
  • DL uplink
  • flexible The combination of the transmission directions of the symbols in a slot can be understood as the slot Format.
  • D is used to represent downlink
  • U to represent uplink
  • F to represent flexible.
  • Flexible means that the symbol can be used for downlink transmission or uplink transmission.
  • NR can support dynamic slot format indication (SFI) (or called slot uplink and downlink indication).
  • SFI slot format indication
  • the network device can instruct the terminal device to detect a group common physical downlink control channel in the first slot of each detection cycle.
  • GC-PDCCH the DCI carried in the GC-PDCCH is used to indicate the slot format of the slot in the detection period.
  • the network device configures high-level indication information for the terminal device, which may include, but is not limited to: serving cell identity (serving cell identity, servingCellId), DCI location (positionInDCI), and slot Format Combinations (slotFormatCombinations).
  • serving cell identity serving cell identity
  • servingCellId servingCellId
  • DCI location positionInDCI
  • slot Format Combinations slotFormatCombinations
  • the terminal device detects the GC-PDCCH and obtains the DCI used to indicate the SFI, it determines the position of the SFI indication information in the DCI according to the servingCellId and positionInDCI, thereby determining the SFI indication information. Further, the terminal device may determine the slot format of each slot in the slotFormatCombinations corresponding to the slotFormatCombinationId in the detection period according to the SFI indication information.
  • the above method can indicate the slot format in each slot, but it cannot indicate the COT format.
  • the embodiment of the present application proposes a method that can indicate the COT effectively and ensure the transmission performance.
  • Fig. 5 is a schematic interaction diagram of a communication method provided by an embodiment of the present application.
  • the method 500 may include the following steps.
  • the terminal device receives instruction information from the network device, where the instruction information is used to indicate that the COT is in the last slot.
  • the network device sends instruction information to the terminal device.
  • the indication information may be carried in the DCI, or the network device may also be sent to the terminal device through a separate signaling, which is not limited in the embodiment of the present application.
  • the embodiment of the present application takes the network device LBT successfully obtaining the channel use right and sharing the channel use right to the terminal device as an example for description, which is not limited.
  • the terminal device LBT may successfully obtain the channel use right. And share the channel use right to network equipment or other terminal equipment.
  • the network device when the symbols occupied by the COT in the last slot are part of the symbols in the last slot, the network device sends the indication information to the terminal device.
  • Partial slot means that COT occupies part of the symbols in the partial slot, that is, the remaining part of the partial slot is outside the COT.
  • slot(n) and slot(n+4) are partial slots.
  • the last slot is used to indicate the slot where the end position of the COT is located, as shown in the slot (n+4) in Figure 6.
  • the first slot is used to indicate the slot where the start position of the COT is located, as shown in slot(n) in Figure 6.
  • the indication information may be used to indicate the status of the symbol in the last slot.
  • the indication information may be used to indicate symbols located in the COT in the last slot, and/or symbols located outside the COT in the last slot.
  • the terminal device can determine which symbols in the last slot are located in the COT according to the indication information, and correspondingly, the terminal device can also determine which symbols are located outside the COT.
  • the terminal device can determine which symbols in the last slot are outside the COT according to the indication information, and correspondingly, the terminal device can also determine which symbols are inside the COT.
  • the information of the COT in the last slot includes one or more of the following: the symbol occupied by the COT in the last slot, the number of symbols occupied by the COT in the last slot, and when the COT is in the first slot The symbols occupied by the slot, the number of slots occupied by the COT, or the total number of symbols occupied by the COT.
  • the terminal device can determine which symbols in the last slot are located in the COT based on any one or more of the above information. Correspondingly, the terminal device can also determine which symbols are located outside the COT; or, the terminal device can determine which symbols are located outside the COT according to any of the above Or multiple pieces of information to determine which symbols in the last slot are outside the COT. Accordingly, the terminal device can also determine which symbols are inside the COT.
  • the following describes in detail the method in which the terminal device determines which symbols in the last slot are located in the COT, or the method in which the terminal device determines which symbols in the last slot are located outside the COT.
  • the terminal device Based on the information of the COT in the last slot, the terminal device communicates in the COT.
  • the terminal device communicates in the COT based on the information of the slot where the COT end position, for example, which symbols in the last slot are located in the COT, and which symbols in the last slot are located outside the COT, etc.
  • the terminal device communicates in the COT, which means that the terminal device obtains the right to use the channel in the COT, and the terminal device can communicate in the COT according to actual communication requirements.
  • the terminal device can communicate within a part of the time occupied by the COT, or it can also mean that the terminal device communicates within the entire COT, which is not limited.
  • the terminal device can communicate based on the COT information in the last slot.
  • the terminal device can determine which symbols are located in the COT according to the information of the COT in the last slot, and then the terminal device can perform uplink and downlink transmission or data analysis on the symbols located in the COT, avoiding symbols located outside the COT Upstream and downstream transmission or data analysis and other processing to avoid waste of resources.
  • the following describes in detail the method in which the terminal device determines which symbols in the last slot are located in the COT, or the method in which the terminal device determines which symbols in the last slot are located outside the COT.
  • the terminal device can determine which symbols in the last slot are located in the COT through any of the following schemes, or the terminal device can determine which symbols in the last slot are located outside the COT.
  • Scheme 1 The indication information is used to indicate the symbol occupied by the COT in the last slot.
  • the terminal device determines which symbols in the last slot are located in the COT according to the symbols occupied by the COT in the last slot, or the terminal device determines which symbols in the last slot are located outside the COT.
  • the indication information can indicate the number of the symbol in the last slot of the COT.
  • the number of the symbol in a time slot in Table 1 is 0 to 14.
  • the terminal equipment can be based on the number of the symbol. Determine the symbol located in the COT.
  • the indication information indicates that the symbols occupied by COT in the last slot are: symbol 0, symbol 1, and symbol 2, then the terminal device can determine that symbol 0, symbol 1, and symbol 2 in the last slot are located in COT according to the indication information Correspondingly, the terminal device can also determine that other symbols in the last slot are outside the COT. In other words, the terminal device can determine that the symbol 0, symbol 1, and symbol 2 in the last slot are located in the COT, that is, the symbol 0, symbol 1, and symbol 2 in the last slot can be used for data transmission.
  • the uplink and downlink configuration of the symbols occupied by the COT in the last slot can be determined by the SFI of the time slot.
  • the terminal device can determine the uplink and downlink configuration information of the symbols in the last slot according to the SFI of the last slot.
  • SFI can be carried in DCI format 2_0 (DCI format 2_0), and the uplink and downlink configuration of each slot can be indicated by 8 bits, which can indicate 256 different uplink and downlink configurations.
  • DCI format 2_0 DCI format 2_0
  • 8 bits 8 bits
  • the indication information indicates that the number of symbols occupied by the COT in the last slot is n1, and n1 is an integer greater than or equal to 1.
  • the terminal device After receiving the instruction information, the terminal device can determine that there are n1 symbols in the last slot according to the instruction information, that is, the terminal device can determine that the first n1 symbols in the last slot are located in the COT, and accordingly, the terminal The device can determine that the remaining symbols are outside the COT. In other words, the terminal device can determine that the first n1 symbols in the last slot can be used for data transmission.
  • the indication information indicates that the number of symbols occupied by the COT in the last slot is 4, and the SFI of the slot received by the terminal device is (28,32,23,55), then the terminal device can determine the COT occupied in the last slot The number of symbols is 4, and the uplink and downlink configuration is "DDFF".
  • the terminal device can also determine that the remaining symbols in the last slot (such as the remaining 9 or 10 symbols) are located outside the COT. That is, the terminal device can determine the information of the slot where the COT end position is located. For example, the first 4 symbols in the last slot are located in the COT, that is, the first 4 symbols in the last slot can be used for data transmission. Further, the terminal device may determine that the first two symbols in the last slot are used for downlink transmission, and the third symbol and the fourth symbol are used for uplink transmission.
  • the indication information indicates the value corresponding to the time slot format of the slot.
  • the terminal device checks Table 2 or Table 3 according to the value indicated by the instruction information to determine which symbols in the last slot are located in the COT. In other words, the terminal device can determine which symbols in the last slot can be used for data transmission.
  • SFI can indicate four states: D, U, F, and E. Among them, D indicates that the symbol is used for downlink transmission, U indicates that the symbol is used for uplink transmission, F indicates that the symbol is used for uplink transmission or downlink transmission, and E indicates that the symbol is located outside the COT.
  • the terminal device can determine that there is a symbol in the COT in the last slot, and it can be seen from Table 2 that this symbol is used for downlink transmission. In other words, the terminal device can determine the information of the slot where the COT end position is located. For example, the first symbol in the last slot is located in the COT, that is, the first symbol in the last slot can be used for data transmission. Further, the terminal device may determine that the first symbol in the last slot is used for downlink transmission.
  • Table 2 is only an exemplary description, and the embodiments of the present application are not limited thereto.
  • a reserved configuration with a value of 56-254 is applied.
  • an indication item can be added to the SFI table, for example, marked as X, and X is used to indicate that the symbol is located in the COT.
  • SFI can indicate four states: D, U, F, X; among them, D indicates that the symbol is used for downlink transmission, U indicates that the symbol is used for uplink transmission, F indicates that the symbol is used for uplink or downlink transmission, and X indicates The symbol is located in the COT.
  • the terminal device can determine that there are 2 symbols in the COT in the last slot. That is, the terminal device can determine the information of the slot where the COT end position is located. For example, the first two symbols in the last slot are located in the COT, that is, the first two symbols in the last slot can be used for data transmission. Whether the two symbols are used for uplink transmission or downlink transmission may be predetermined, or may be instructed by the network device to the terminal device, or may refer to the SFI of other slots, which is not limited. The following description is combined with Option 4.
  • Table 3 is only an exemplary description, and the embodiments of the present application are not limited thereto.
  • the "D" used to indicate downlink transmission in the foregoing Table 3 can also be replaced with "U” used to indicate uplink transmission, or "F” used to indicate flexible transmission.
  • the terminal device can determine the information of the slot where the COT end position, for example, which symbols in the last slot are located in the COT, so that the terminal device can determine which symbols in the last slot can be used for data transmission. Further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • the indication information is used to indicate the total number of slots occupied by the COT.
  • the terminal device determines which symbols in the last slot are located in the COT according to the total number of slots occupied by the COT, or the terminal device determines which symbols in the last slot are located outside the COT.
  • the indication information is used to indicate the number of complete slots occupied by the COT, or the indication information is used to indicate the number of all slots occupied by the COT. Described below separately.
  • the indication information is used to indicate the number of complete slots occupied by the COT.
  • the total number of slots can represent the number of complete slots occupied by COT.
  • a complete slot means that all symbols included in the slot are located in the COT.
  • the number of complete slots occupied by COT is 3, namely slot(n+1), slot(n+2), slot(n+3).
  • the terminal device determines the number of symbols in the last slot occupied by the COT in combination with the preset regulations and the number of complete slots.
  • COT is obtained.
  • the indication information indicates that the number of complete slots occupied by the COT is 3, namely slot(n+1), slot(n+2), and slot(n+3).
  • the terminal device can determine that the terminal device is in the next slot (that is, the last slot), that is, slot(n+4), in combination with preset regulations.
  • n2 symbols located in the COT and n2 is an integer greater than or equal to 1. In other words, the terminal device can determine that the first n2 symbols in the last slot can be used for data transmission.
  • Pre-defined regulations that is, network equipment pre-defined according to historical communication conditions or network conditions, or pre-defined by the protocol, in the last slot occupied by the COT, n2 symbols are located in the COT.
  • the terminal device determines the number of symbols in the last slot occupied by the COT in combination with the SFI indication and the number of complete slots.
  • the terminal device receives the SFI of (28,38,46,57), based on the indication information, the terminal device determines that the number of complete slots occupied by the COT is 3, and the SFI of the 3 slots is (28,38,46 ), combined with Table 2, the terminal device can determine that there are 2 symbols in the last slot in the COT, and the 2 symbols are used for downlink transmission; or, combined with Table 3, the terminal device can determine that there are 2 symbols in the last slot Located in the COT, whether the 2 symbols are used for uplink transmission or downlink transmission can be pre-defined or instructed by the network device to the terminal device, or you can refer to the SFI of other slots, which is not limited .
  • Implementation mode 2 The indication information is used to indicate the number of all slots occupied by the COT.
  • the total number of slots can represent the number of all slots occupied by COT. It can be understood that all the slots may include partial slots. Partial slot means that COT occupies part of the symbols in the partial slot, that is, the remaining part of the partial slot is outside the COT. As shown in Figure 6, the number of all slots occupied by COT is 5, namely slot(n), slot(n+1), slot(n+2), slot(n+3), slot(n+4 ). As shown in Figure 6, slot(n) and slot(n+4) are partial slots.
  • the terminal device determines the number of symbols in the last slot occupied by the COT in combination with preset regulations and the number of all slots.
  • the indication information indicates that the total number of slots occupied by COT is 5, namely slot(n), slot(n+1), slot(n+2), slot(n+3), slot(n+ 4). Then the terminal device can determine that the terminal device is in the last slot, namely slot(n+4), in combination with preset regulations. There are n3 symbols in the COT, and n3 is an integer greater than or equal to 1. In other words, the terminal device can determine that the first n3 symbols in the last slot can be used for data transmission.
  • the preset stipulation that is, the network equipment is pre-defined according to historical communication conditions or network conditions, or, as defined in advance by the protocol, n3 symbols are located in the COT in the last time slot occupied by the COT. For example, it can be specified that in the last time slot occupied by the COT, one or two symbols are located in the COT, so as to ensure that the terminal device does not transmit data on symbols outside the COT as much as possible.
  • the terminal device determines the number of symbols in the last slot occupied by the COT in combination with the SFI indication and the number of all slots.
  • the terminal device receives the SFI of (28,38,46,57), based on the indication information, combined with Table 2, the terminal device can determine that there are 2 symbols in the last slot in the COT, and the 2 symbols are used for downlink Transmission; Or, in conjunction with Table 3, the terminal device can determine that there are 2 symbols in the last slot in the COT, whether the 2 symbols are used for uplink transmission or downlink transmission, which can be pre-specified or indicated by the network equipment For terminal equipment, alternatively, you can refer to the SFI of other slots, which is not limited.
  • the terminal device can determine the information of the slot where the COT end position, for example, which symbols in the last slot are located in the COT, so that the terminal device can determine which symbols in the last slot can be used for data transmission. Further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • Scheme 4 The indication information is used to indicate the status of the symbol in the last slot: the symbol is located in the COT and/or the symbol is located outside the COT.
  • the terminal device determines which symbols in the last slot are located in the COT according to the state of the symbols in the last slot, or the terminal device determines which symbols in the last slot are located outside the COT. In other words, the terminal device can determine which symbols in the last slot can be used for data transmission.
  • Solution 4 can be implemented by any of the following implementation methods.
  • an indicator item E can be added to the SFI table. E indicates that the symbol is outside the COT, as shown in Table 2.
  • the terminal device can determine that in the last slot, there are 12 symbols located in the COT, and the last two symbols are located outside the COT, and it can be seen from Table 2.
  • the row configuration is "DDDDDDDDDD", that is, the 12 symbols are used for downlink transmission.
  • an indication item X can be added to the SFI table. X indicates that the symbol is located in the COT, as shown in Table 3.
  • the terminal device can determine that there are 2 symbols in the COT in the last slot.
  • the terminal device can determine that the remaining 12 symbols in the last slot are outside the COT.
  • the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission.
  • whether the symbols located in the COT are used for uplink transmission, downlink transmission, or flexible use can be predetermined.
  • the uplink and downlink configuration of the symbol in the last slot in the COT can be specified in advance, for example, downlink transmission ; Alternatively, it can be instructed by the network device to the terminal device; or, it can also refer to the SFI of other slots, which is not limited.
  • Exemplarily refer to the SFI of the slot located in the COT.
  • the terminal device can determine that the last slot is a partial slot, and there are 2 symbols in the COT in the last slot.
  • the terminal device can refer to the uplink and downlink configuration of the adjacent slot, that is, refer to the uplink and downlink configuration with an SFI of 46.
  • the terminal device can determine the uplink and downlink configuration of the two symbols in the last slot as "DD" according to the uplink and downlink configuration of the first two symbols with SFI of 46, that is, the two symbols in the last slot are used For downlink transmission.
  • the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission, and the 2 symbols can be used for downlink transmission.
  • the terminal device can refer to the uplink and downlink configuration of adjacent slots, that is, refer to the uplink and downlink configuration of SFI 46.
  • the terminal device can determine the uplink and downlink configuration of the last 2 symbols in the last slot as "FU" according to the uplink and downlink configuration of the last 2 symbols with SFI of 46, that is, the first symbol in the last slot It can be used flexibly, and the second symbol can be used for uplink transmission. That is, the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission, and the first symbol is used for flexible transmission, and the second symbol can be used for uplink transmission.
  • the terminal device can refer to the uplink and downlink configuration of the first slot, that is, the uplink and downlink configuration with SFI of 38.
  • the terminal device can determine the last one according to the uplink and downlink configuration of the first 2 symbols with SFI of 38 as "DD".
  • the uplink and downlink configuration of the two symbols in the slot is "DD", that is, the two symbols in the last slot are used for downlink transmission.
  • the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission, and the 2 symbols can be used for downlink transmission.
  • the terminal device can refer to the uplink and downlink configuration of the first slot, that is, the uplink and downlink configuration with an SFI of 38. For example, the terminal device determines the last one according to the uplink and downlink configuration of the last 2 symbols with SFI of 38 as "UU" The uplink and downlink configuration of the two symbols in the slot is "UU", that is, the two symbols in the last slot are used for uplink transmission. In other words, the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission, and the 2 symbols can be used for uplink transmission.
  • Exemplarily refer to the SFI of the slot located outside the COT.
  • the terminal device can determine that the last slot occupied by the COT is a partial slot, and there are 2 symbols in the last slot in the COT. In addition, the terminal device can also determine that the slot corresponding to the serial number 42 is located outside the COT.
  • the terminal device can refer to the uplink and downlink configuration of the next slot of the last slot, that is, refer to the uplink and downlink configuration of SFI 42.
  • the terminal device can determine the uplink and downlink configuration of the two symbols in the last slot as "DD" according to the uplink and downlink configuration of the first two symbols with SFI of 42 as "DD", that is, the two symbols in the last slot are used For downlink transmission.
  • indication items X and E can be added to the SFI table, and the uplink and downlink configuration can be indicated by other SFIs. As shown in Table 4.
  • the terminal device can determine that in the last slot, 12 symbols are located in the COT and 2 symbols are located outside the COT. In other words, the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission.
  • whether the symbols located in the COT are used for uplink transmission, downlink transmission, or flexible use can be pre-defined; it can also be instructed by the network device to the terminal device; or, you can refer to the SFI of other slots, for example You can refer to the SFI of the slot located in the COT or the SFI of the slot located outside the COT. There is no restriction on this. For details, reference may be made to the exemplary description in the foregoing implementation manner 2, which will not be repeated here.
  • the terminal device can add new indication items to the existing SFI form to help the terminal device analyze whether there is a partial slot in the COT. If there is a partial slot, several symbols in the partial slot are located in the COT or outside the COT . In other words, the terminal device can determine which symbols in the last slot can be used for data transmission. Further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • the terminal device may not obtain related information such as the COT duration and/or end time by means such as GC-PDCCH.
  • the indication information includes SFI, and SFI includes four states: D, U, F, X, or D, U, F, E.
  • an indication item E can be added to the SFI table.
  • E indicates that the symbol is outside the COT, as shown in Table 2 above.
  • the terminal device can determine whether there is a partial slot in the COT according to Table 2 above. If there is a partial slot, several symbols in the partial slot are located in the COT or outside the COT.
  • the terminal device can also determine the uplink and downlink configuration of the symbol located in the last slot in conjunction with Table 2. That is, the terminal device can determine which symbols in the last slot are located in the COT, and further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • an indication item X can be added to the SFI table, where X indicates that the symbol is located in the COT, that is, table 3 above.
  • the terminal device can determine whether there is a partial slot in the COT according to Table 3 above. If there is a partial slot, several symbols in the partial slot are located in the COT or outside the COT.
  • the terminal equipment can also determine the uplink and downlink configuration of the symbol located in the last slot in conjunction with Table 3.
  • the terminal device may determine that the uplink and downlink configuration of the symbol in the last slot in the COT is the same as the uplink and downlink configuration of the symbol in the previous slot.
  • the terminal device may determine that the uplink and downlink configuration of the symbol in the last slot in the COT is the same as the uplink and downlink configuration of the symbol in the first slot.
  • the uplink and downlink configuration of the symbol in the last slot in the COT may be pre-defined, for example, downlink transmission.
  • the terminal device can determine the information of the slot where the COT end position, for example, which symbols in the last slot are located in the COT, so that the terminal device can determine which symbols in the last slot can be used for data transmission. Further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • the indication information is used to indicate the total number of symbols occupied by COT.
  • the terminal device determines which symbols in the last slot are located in the COT according to the total number of symbols occupied by the COT, or the terminal device determines which symbols in the last slot are located outside the COT.
  • the terminal device can determine the start symbol of COT and the total number of symbols occupied by COT.
  • the indication information is used to indicate that the total number of symbols occupied by the COT is 28, and the start symbol is 1 (that is, the symbol number is 1), then the terminal device can determine that there are 2 symbols in the last slot in the COT. In other words, the terminal device can determine that the first 2 symbols in the last slot can be used for data transmission.
  • the terminal device may also be determined according to the number of symbols located in the COT or outside the COT in the slot where the COT start position is located, and the total number of symbols occupied by the COT. You can refer to Scheme 3 above, which will not be repeated here.
  • the terminal device can determine which symbols in the last slot are located in the COT through any of the above solutions, or the terminal device can determine which symbols in the last slot are located outside the COT, so that the terminal device can determine which symbols in the last slot Can be used for data transmission. Further, the terminal device can determine which symbols in the last slot are used for uplink transmission, downlink transmission, or flexible transmission, so that the terminal device can better transmit data or process data.
  • the indication information is used to indicate the information of the slot where the COT start position is located.
  • the terminal device can determine which symbols in the last slot are located in the COT according to the indication information, or the terminal device can determine which symbols in the last slot are located outside the COT.
  • the number of symbols occupied by COT is equivalent to (or equal to) the number of symbols occupied by an integer number of slots.
  • the number of symbols occupied by COT is equivalent to the number of symbols occupied by an integer number of slots, and is equivalent to 2
  • the number of symbols occupied by a slot, that is, W is 2.
  • the number of symbols occupied by the COT is equivalent to (or equal to) the number of symbols occupied by an integer number of slots, which may be predetermined or notified by the network device to the terminal device, which is not limited in this embodiment of the application.
  • a field may be added on the basis of the PDCCH instruction, such as an x-bit field, and the added field indicates that the number of symbols occupied by the COT is equivalent to the number of symbols occupied by an integer number of slots. Or, it can also be understood that the value of W is indicated by the added field. Among them, x is an integer greater than or equal to 1.
  • a 1-bit field is added to indicate whether the number of symbols occupied by COT is equivalent to the number of symbols occupied by an integer number of slots.
  • 0 corresponds to the number of symbols occupied by the COT equivalent to the number of symbols occupied by an integer number of slots
  • 1 corresponds to the number of symbols occupied by the COT not equal to the number of symbols occupied by an integer number of slots.
  • 1 corresponds to the number of symbols occupied by the COT equivalent to the number of symbols occupied by an integer number of slots
  • 0 corresponds to the number of symbols occupied by the COT not equal to the number of symbols occupied by an integer number of slots.
  • the information of the slot where the COT start position is located may also be indicated to the terminal device through the indication information, or may also be notified to the terminal device through a separate signaling, which is not limited.
  • the information of the slot where the COT start position is located can include one or more of the following: COT start symbol, the number of symbols in the COT in the slot where the COT start position is located, or the COT start position The number of symbols outside the COT in the slot.
  • the terminal device can combine the information of the slot where the COT start position is located to determine which symbols in the last slot are located in the COT, or the terminal The device determines which symbols in the last slot are outside the COT. Described below separately.
  • the terminal device may determine which symbols in the last slot are located in the COT in combination with the start symbol of the COT, or the terminal device may determine which symbols in the last slot are located outside the COT in combination with the start symbol of the COT.
  • the terminal device can determine that there are 5 symbols in the first slot outside the COT. Since the number of symbols occupied by the COT is equivalent to the number of symbols occupied by an integer number of slots, the terminal device can determine that 5 symbols in the last slot are located in the COT. In other words, the terminal device can determine that the first 5 symbols in the last slot can be used for data transmission.
  • the network device may further send information to the terminal device to notify the uplink and downlink configuration of the symbols in the COT in the last slot.
  • the uplink and downlink configuration of the first 5 symbols in the last slot can refer to the uplink and downlink configuration of the first 5 symbols in the first slot.
  • the terminal device can determine which of the 5 symbols are used for uplink transmission, or which symbols are used for downlink transmission, or which symbols are flexibly transmitted.
  • the terminal device may determine which symbols in the last slot are located in the COT based on the number of symbols located outside the COT in the slot where the COT start position is located, or determine which symbols in the last slot are located outside the COT.
  • the terminal device can determine that the start symbol of the COT is the 6th in the first slot. Symbols (ie symbol 5). Since the number of symbols occupied by the COT is equivalent to the number of symbols occupied by an integer number of slots, the terminal device can determine that 5 symbols in the last slot are located in the COT. In other words, the terminal device can determine that the first 5 symbols in the last slot can be used for data transmission.
  • the network device may further send information to the terminal device to notify the uplink and downlink configuration of the symbols in the COT in the last slot.
  • the uplink and downlink configuration of the first 5 symbols in the last slot can refer to the uplink and downlink configuration of the first 5 symbols in the first slot, so that the terminal device can determine which symbols of the 5 symbols are used for uplink transmission , Or which symbols are transmitted downstream, or which symbols are transmitted flexibly.
  • the terminal device may determine which symbols in the last slot are located in the COT based on the number of symbols located in the COT in the slot where the COT start position is located, or determine which symbols in the last slot are located outside the COT.
  • the terminal device can determine that the COT start symbol is the sixth in the first slot. A symbol (ie symbol 5), then the terminal device can determine that there are 9 symbols in the last slot outside the COT. Since the number of symbols occupied by the COT is equivalent to the number of symbols occupied by an integer number of slots, the terminal device can determine that 5 symbols in the last slot are located in the COT. In other words, the terminal device can determine that the first 5 symbols in the last slot can be used for data transmission.
  • the network device may further send information to the terminal device to notify the uplink and downlink configuration of the symbols in the COT in the last slot.
  • the uplink and downlink configuration of the first 5 symbols in the last slot can refer to the uplink and downlink configuration of the first 5 symbols in the first slot, so that the terminal device can determine which symbols of the 5 symbols are used for uplink transmission , Or which symbols are transmitted downstream, or which symbols are transmitted flexibly.
  • any terminal device can determine which symbols in the last slot are located in the COT according to the information of the slot where the COT start position is located, or determine which symbols in the last slot are located outside the COT The methods all fall within the protection scope of the embodiments of the present application.
  • the terminal device can determine the uplink and downlink configuration of the symbols located in the COT in the last slot in combination with any one of Tables 2 to 4.
  • the embodiment of the present application takes the last slot as a partial slot as an example for description, and the embodiment of the present application can also be applied to a scenario where the first slot is a partial slot.
  • the terminal device receives the instruction information from the network device, the instruction information is used to indicate the information of the COT in the first slot, and the terminal device can determine the information of the slot where the start position of the COT is located according to the instruction information, such as in the first slot Which symbols are located in the COT, or in other words, which symbols in the first slot can be used by the terminal device for data transmission, etc.
  • the terminal device determines that n4 symbols in the first slot are located in the COT, and n4 is an integer greater than or equal to 1, it can be determined that the last n4 symbols of the first slot are located in the COT, that is, the terminal device can use the n4 symbols to transmit data; another example, the terminal device determines the first slot according to the indicated SFI (such as 57 or 58, etc.) in combination with any of the above tables 2 to 4 How many symbols are in the COT. Further, the terminal device may also determine which symbols in the first slot are used for uplink transmission, downlink transmission, or flexible transmission.
  • SFI such as 57 or 58, etc.
  • the terminal device determines that the number of symbols occupied by the COT in the first slot (ie slot(n)) is 7, through any one of the above six solutions, then the terminal device It can be determined that the last 7 symbols of the 14 symbols in the first slot are located in the COT, and these 7 symbols can be used for downlink transmission.
  • the terminal device can determine the information of the slot where the COT start position is located in combination with the information of the slot where the COT end position is located, that is, determine which symbols are located in the COT in the slot where the COT start position is located. Further, it is determined which symbols located in the COT are used for uplink transmission, downlink transmission, or flexible transmission.
  • the terminal device can determine which symbols in the first slot are in any one of the six solutions above. Located in the COT, further, the terminal device can determine the uplink and downlink configuration of the symbols located in the COT through any one of the above six solutions. I won't repeat them here.
  • the network device indicates the COT information in the last slot, for example, which symbols in the last slot are located in the COT or which symbols in the last slot are located outside the COT, thereby the terminal device
  • the specific location of COT can be determined, which symbols can be used for data transmission, and the corresponding uplink and downlink configuration can be further determined, that is, whether these symbols are used for uplink transmission, downlink transmission, or flexible transmission, which avoids
  • the terminal device performs data transmission or parsing data on symbols located outside the COT, thereby avoiding waste of resources and improving data transmission performance.
  • the methods and operations implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices
  • the methods and operations implemented by network devices can also be implemented by It can be implemented by components (such as chips or circuits) of network devices.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitter device or the receiver device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitter device or the receiver device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module corresponding to each function.
  • FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 800 may include a communication unit 810 and a processing unit 820.
  • the communication unit 810 can communicate with the outside, and the processing unit 820 is used for data processing.
  • the communication unit 810 may also be referred to as a communication interface or a transceiving unit.
  • the communication device 800 can implement the steps or processes performed by the terminal device corresponding to the above method embodiment, for example, it can be a terminal device, or a chip or circuit configured in the terminal device. At this time, the communication device 800 may be called a terminal device.
  • the communication unit 810 is configured to perform the transceiving-related operations on the terminal device side in the above method embodiment
  • the processing unit 820 is configured to perform the processing related operations on the terminal device in the above method embodiment.
  • the communication unit 810 is used to: receive indication information from the network equipment, the indication information is used to indicate the channel occupancy time COT in the last time slot information; the processing unit 820 is used to: determine that the COT is in the last time slot Information of a time slot; the communication unit 810 is also used to communicate in the COT based on the information of the COT in the last time slot.
  • the indication information is used to indicate the information of the COT in the last time slot, including: the indication information is used to indicate: the symbols located in the COT in the last time slot, and/or, the COT in the last time slot Outside symbol.
  • the indication information includes the slot format indicator SFI of the first slot; the processing unit 820 is configured to: determine the uplink and downlink configuration information of the symbol occupied by the COT in the last slot according to the SFI of the first slot.
  • the first time slot is adjacent to the last time slot.
  • the information of the last time slot occupied by COT includes one or more of the following information: the symbols occupied by COT in the last time slot, the number of symbols occupied by COT in the last time slot, COT The number of time slots occupied, the information of the time slot where the start position of the COT is located, or the total number of symbols occupied by the COT.
  • the communication device 800 may implement the steps or processes executed by the terminal device in the method 500 according to the embodiment of the present application.
  • the communication device 800 may include a unit for executing the method executed by the terminal device in the method 500 in FIG. 5 .
  • each unit in the communication device 800 and other operations and/or functions described above are used to implement the corresponding process of the method 500 in FIG. 5.
  • the communication unit 810 can be used to execute steps 510 and 500 in the method 500, and the processing unit 820 can be used to execute the terminal equipment in the method 500 to determine COT and parse data. Some steps to wait.
  • the communication unit 810 in the communication device 800 may be implemented by the transceiver 1020 in the terminal device 1000 shown in FIG. 10, and the processing unit 820 in the communication device 800 may be implemented by the terminal device shown in FIG.
  • the processor 1010 in 1000 is implemented.
  • the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.
  • the communication unit 810 in the communication device 800 may also be an input/output interface.
  • the communication device 800 can implement the steps or processes executed by the network device corresponding to the above method embodiment, for example, it can be a network device, or a chip or circuit configured in the network device. At this time, the communication device 800 may be called a network device.
  • the communication unit 810 is configured to perform the transceiving-related operations on the network device side in the above method embodiment
  • the processing unit 820 is configured to perform the processing related operations on the network device in the above method embodiment.
  • the processing unit 820 is configured to: determine the information of the channel occupancy time COT in the last time slot; the communication unit 810 is configured to: send instruction information to the terminal device, the instruction information is used to indicate the COT information in the last time slot.
  • the indication information is used to indicate the information of the COT in the last time slot, including: the indication information is used to indicate: the symbols located in the COT in the last time slot, and/or, the COT in the last time slot Outside symbol.
  • the indication information includes the slot format indicator SFI of the first slot; the processing unit 820 is configured to: determine the uplink and downlink configuration information of the symbol occupied by the COT in the last slot according to the SFI of the first slot.
  • the first time slot is adjacent to the last time slot.
  • the information of the last time slot occupied by COT includes one or more of the following information: the symbols occupied by COT in the last time slot, the number of symbols occupied by COT in the last time slot, COT The number of time slots occupied, the information of the time slot where the start position of the COT is located, or the total number of symbols occupied by the COT.
  • the communication unit 810 is specifically configured to send indication information to the terminal device when the symbols occupied by the COT in the last time slot are part of the symbols in the last time slot.
  • the communication device 800 may implement the steps or processes executed by the network device in the method 500 according to the embodiment of the present application.
  • the communication device 800 may include a unit for executing the method executed by the network device in the method 500 in FIG. 5 .
  • each unit in the communication device 800 and other operations and/or functions described above are used to implement the corresponding process of the method 500 in FIG. 5.
  • the communication unit 810 can be used to perform steps 510 and 520 in the method 500, and the processing unit 820 can be used to perform the determination of the COT in the last slot in the method 500. Information and other related processing.
  • the communication unit in the communication device 800 can be implemented by the transceiver 1120 in the network device 1100 shown in FIG. 11, and the processing unit 820 in the communication device 800 can be implemented by the network device shown in FIG. The processor 1110 in 1100 is implemented.
  • the communication unit 810 in the communication device 800 may also be an input/output interface.
  • the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.
  • FIG. 9 is another schematic block diagram of a communication device 900 provided by an embodiment of the present application.
  • the communication device 900 includes a processor 910, a memory 920, and a transceiver 930.
  • the memory 920 stores a program.
  • the processor 910 is configured to execute the program stored in the memory 920 and execute the program stored in the memory 920.
  • the processor 910 is configured to execute the relevant processing steps in the above method embodiment, and execute the program stored in the memory 920, so that the processor 910 controls the transceiver 930 to execute the transceiving-related steps in the above method embodiment.
  • the communication device 900 is used to execute the actions performed by the terminal device in the above method embodiment.
  • the execution of the program stored in the memory 920 enables the processor 910 to execute the above method embodiment.
  • the processing steps on the terminal device side in the middle execute the program stored in the memory 920, so that the processor 910 controls the transceiver 930 to perform the receiving and sending steps on the terminal device side in the above method embodiment.
  • the communication device 900 is used to perform the actions performed by the network device in the above method embodiment.
  • the execution of the program stored in the memory 920 enables the processor 910 to perform the above method implementation.
  • the processing steps on the network device side execute the programs stored in the memory 920 so that the processor 910 controls the transceiver 930 to perform the receiving and sending steps on the network device side in the above method embodiments.
  • An embodiment of the present application also provides a communication device 1000, and the communication device 1000 may be a terminal device or a chip.
  • the communication apparatus 1000 may be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 10 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 10 only one memory and processor are shown in FIG. 10. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1010 and a processing unit 1020.
  • the transceiver unit 1010 may also be referred to as a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit 1020 may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 1010 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1010 as the sending unit, that is, the transceiver unit 1010 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, receiver, or receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the processing unit 1020 is configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiving unit 1010 is also used to perform steps 510 and 520 shown in FIG. 5, and/or the transceiving unit 1010 is also used to perform other transceiving steps on the terminal device side.
  • FIG. 10 is only an example and not a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 10.
  • the chip When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 1100, and the communication device 1100 may be a network device or a chip.
  • the communication device 1100 can be used to perform actions performed by a network device in the foregoing method embodiments.
  • FIG. 11 shows a simplified schematic diagram of the base station structure.
  • the base station includes 1110 parts and 1120 parts.
  • the 1110 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 1120 part is mainly used for baseband processing and control of base stations.
  • the 1110 part can generally be called a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the 1120 part is usually the control center of the base station, and may generally be referred to as a processing unit, which is used to control the base station to perform processing operations on the network device side in the foregoing method embodiments.
  • the transceiver unit of part 1110 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 1110 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 1110 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • Part 1120 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, the boards can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
  • the transceiver unit of part 1110 is used to perform the receiving operations on the network device side in steps 510 and 520 shown in FIG. 5, and/or the transceiver unit of part 1110 is also used to perform the implementation of this application. In the example, other receiving and sending steps on the network device side.
  • the processing unit in part 1120 is used to execute the processing steps on the network device side in the embodiment of the present application.
  • FIG. 11 is only an example and not a limitation, and the foregoing network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 11.
  • the chip When the communication device 1100 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the network equipment is not limited to the above forms, and may also be in other forms: for example: including BBU and adaptive radio unit (ARU), or BBU and active antenna unit (AAU); or Customer premises equipment (CPE) may also be in other forms, which is not limited by this application.
  • ARU adaptive radio unit
  • AAU BBU and active antenna unit
  • CPE Customer premises equipment
  • the above-mentioned BBU can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the RRU can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the embodiment of the present application also provides a processing device, including a processor and an interface.
  • the processor may be used to execute the method in the foregoing method embodiment.
  • the processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the steps shown in FIGS. 5 to 7 The method of any one of the embodiments is shown.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes the steps shown in FIGS. 5 to 7 The method of any one of the embodiments is shown.
  • the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
  • the network equipment in the above device embodiments corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit transmits the receiving or sending in the method embodiments.
  • other steps can be executed by the processing unit (processor).
  • the processing unit processor
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed between two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

La présente invention concerne un procédé de communication et un appareil de communication qui peuvent indiquer efficacement des informations du temps d'occupation de canal et garantir l'exécution d'une transmission de données. Le procédé peut comprendre les étapes suivantes : un dispositif terminal reçoit des informations d'indication en provenance d'un dispositif de réseau, les informations d'indication étant utilisées pour indiquer des informations d'un intervalle où se situe la position d'extrémité du temps d'occupation de canal (COT) ; et le dispositif terminal communique dans le COT sur la base des informations de l'intervalle où se situe la position d'extrémité du du COT.
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