WO2023246586A1 - 传输方法、设备及可读存储介质 - Google Patents

传输方法、设备及可读存储介质 Download PDF

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Publication number
WO2023246586A1
WO2023246586A1 PCT/CN2023/100175 CN2023100175W WO2023246586A1 WO 2023246586 A1 WO2023246586 A1 WO 2023246586A1 CN 2023100175 W CN2023100175 W CN 2023100175W WO 2023246586 A1 WO2023246586 A1 WO 2023246586A1
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WO
WIPO (PCT)
Prior art keywords
slot
mini
transmission
symbol
symbols
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Application number
PCT/CN2023/100175
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English (en)
French (fr)
Inventor
姜蕾
王欢
纪子超
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2023246586A1 publication Critical patent/WO2023246586A1/zh

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • This application belongs to the field of communication technology, and specifically relates to a transmission method, equipment and readable storage medium.
  • each SL transmission (such as physical sidelink control channel (PSCCH) or physical sidelink shared channel (PSSCH) ) all use a fixed length (such as a time slot) as the minimum transmission unit, and start transmission from a fixed (periodic) position (such as the starting position of the slot).
  • a fixed length such as a time slot
  • a fixed position such as the starting position of the slot.
  • LBT listen before talk
  • the time when the channel is empty is uncertain. If the time when the channel is empty is not the starting position of the slot, the SL cannot immediately Transmission needs to be delayed until the starting position of the next slot. This not only reduces resource utilization, but during the delay process, the channel may also be preempted by other devices in the unlicensed frequency band. Therefore, SL's existing slot-based transmission performs poorly in unlicensed frequency bands.
  • Embodiments of the present application provide a transmission method, device and readable storage medium, which can solve the problem of poor performance of SL's existing slot-based transmission in unlicensed frequency bands.
  • the first aspect provides a transmission method, which includes:
  • the terminal performs direct link SL transmission through mini-slot
  • the length of the mini-slot is less than one time slot, and one slot includes the starting positions of one or more mini-slots.
  • a transmission device including:
  • the length of the mini-slot is less than one time slot, and one slot includes the starting positions of one or more mini-slots.
  • a terminal in a third aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
  • a terminal including a processor and a communication interface, wherein the processor is used by the terminal to perform direct link SL transmission through mini-slot;
  • the length of the mini-slot is less than one time slot, and one slot includes the starting positions of one or more mini-slots.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.
  • a chip in a sixth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. .
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect. Method steps.
  • An eighth aspect provides an electronic device configured to perform the steps of the method described in the first aspect.
  • SL UE by using mini-slot-based SL transmission, SL UE can increase transmission opportunities in the unlicensed frequency band and improve resource utilization.
  • Figure 1 is a block diagram of a wireless communication system provided by the implementation of this application.
  • Figure 2 is the existing SL channel structure
  • FIG. 3 is a schematic flowchart of the implementation of the transmission method provided by the present application.
  • Figure 4a is one of the schematic diagrams of an application example provided by the embodiment of the present application.
  • Figure 4b is one of the schematic diagrams of an application example provided by the embodiment of the present application.
  • Figure 4c is one of the schematic diagrams of an application example provided by the embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a transmission device provided by an embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually a category, and the number of objects is not limited.
  • the first object can be one, or Can be multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • MID mobile Internet device
  • augmented reality augmented reality, AR
  • VR virtual reality
  • robots wearable devices
  • Vehicle user equipment VUE
  • pedestrian terminal pedestrian terminal
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices.
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit.
  • Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or Wireless Fidelity (WiFi) nodes, etc.
  • the base station can be called Node B, Evolved Node B (Evolved Node B).
  • the base station is not limited to specific technical terms. It needs to be explained that , in the embodiment of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • unlicensed bands can be used as a supplement to licensed bands to help operators expand services.
  • unlicensed frequency bands can operate in the 5GHz, 37GHz and 60GHz frequency bands.
  • the large bandwidth (80 or 100MHz) of the unlicensed frequency band can reduce the implementation complexity of base stations and terminals (User Equipment, UE).
  • the unlicensed frequency bands are shared by multiple technologies (radioaccess technology, RATs), such as WiFi, radar, LTE-Assisted Access (LAA), etc., in some countries or regions, when the unlicensed frequency bands are used Regulations must be complied with to ensure that all devices can use the resource fairly, such as (listen before talk, LBT), maximum channel occupancy time (MCOT) and other rules.
  • RATs radioaccess technology
  • MCOT maximum channel occupancy time
  • the transmission node needs to send information, it needs to perform LBT first, and performs power detection (ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered idle, and the transmission node can to send. Otherwise, the channel is considered busy and the transmitting node cannot send.
  • the transmission node can be a base station, UE, WiFi AP, etc.
  • the transmission node After the transmission node starts transmitting, the occupied channel time (channel occupancy time, COT) cannot exceed MCOT.
  • the transmission node According to occupied channel bandwidth (OCB) regulation, in the unlicensed frequency band, the transmission node must occupy at least 70% (60GHz) or 80% (5GHz) of the entire frequency band for each transmission.
  • OCB occupied channel bandwidth
  • Type1LBT is a channel listening mechanism based on back-off. When the transmission node detects that the channel is busy, it backs off and continues listening until it detects that the channel is empty.
  • Type2C means that the sending node does not perform LBT, that is, no LBT or immediate transmission.
  • Type2A and Type2B LBT are one-shot LBT, that is, the node performs an LBT before transmission. If the channel is empty, it will transmit, and if the channel is busy, it will not transmit. The difference is that Type2A performs LBT within 25us, which is suitable for sharing COT when the gap between the two transmissions is greater than or equal to 25us.
  • Type2B performs LBT within 16us, which is suitable for sharing COT when the gap between the two transmissions is equal to 16us.
  • Type2LBT which is suitable for LAA/eLAA/FeLAA.
  • the gap between the two transmissions is greater than or equal to 25us, eNB and UE can use Type 2LBT.
  • the types of LBT are Type1, Type2 and Type3.
  • Type1 is a channel listening mechanism based on fallback
  • Type2 is one-shot LBT
  • LBT of 5us is performed within 8us
  • Type3 does not LBT.
  • a DL/UL transmission burst is a set of transmissions with a gap of no more than 16us sent by the base station or UE.
  • the base station or UE can directly transmit without LBT after the gap.
  • the gap between transmissions is greater than 16us, it can be regarded as a separate DL/UL transmission burst.
  • Direct link (sidelink, or translated as side link, secondary link, side link, side link, etc.) transmission, that is, data transmission is performed directly on the physical layer between terminals (User Equipment, UE).
  • LTE sidelink communicates based on broadcast and can be used to support basic security communications of vehicle to everything (V2X), but is not suitable for other more advanced V2X services.
  • the 5G NR (New Radio) system supports more advanced sidelink transmission design, such as unicast, multicast or multicast, etc., thus supporting more comprehensive service types.
  • an Automatic Gain Control (AGC) symbol is required before each SL transmission, and a gap (GAP) symbol is required after each transmission.
  • the AGC symbol is generally a repeated transmission of the next symbol, such as PSCCH/PSSCH or physical sidelink feedback channel (PSFCH).
  • PSCCH/PSSCH or physical sidelink feedback channel (PSFCH).
  • PSFCH physical sidelink feedback channel
  • SL UE can only start PSCCH/PSSCH or PSFCH transmission at a fixed position within the slot.
  • SCI is sidelink control information (SCI)
  • PTRS phase-tracking reference signals
  • an embodiment of the present application provides a transmission method, including:
  • Step 301 The terminal performs SL transmission through mini-slot
  • the length of mini-slot is less than one slot, and one slot includes the starting position of one or more mini-slots.
  • the above-mentioned terminal may specifically be a terminal serving as a sending end in SL communication.
  • SL UE by using mini-slot-based SL transmission, SL UE can increase transmission opportunities in the unlicensed frequency band and improve resource utilization.
  • Mini-slot is a transmission unit with a length of less than or equal to 13 symbols (that is, the length of mini-slot is less than one slot).
  • the length of mini-slot can be 5, 7 symbols etc.
  • the SL transmission can be PSCCH, PSSCH or physical side link feedback channel (PSFCH).
  • mini-slot satisfies one or more of the following:
  • the starting position of the SL transmission of the first mini-slot in a slot has an AGC symbol; optionally, in order to save AGC symbols, an AGC symbol is configured for each mini-slot in (1).
  • the mini-slot is a continuous transmission, after the power reception range is accurately adjusted based on the measurement of the AGC symbol for the first time, the AGC symbol may not be set in subsequent mini-slots.
  • each AGC symbol copies the symbol of the next or previous SL transmission;
  • the AGC symbols within the slot are protocol-specific or configured sequences (for example, M sequence or Gold sequence, Zadoff-Chu sequence, low-PAPR sequence) or sequences initialized with specific values;
  • the receiving terminal (Rx UE) of Slot-based SL transmission performs rate matching
  • the end position of the SL transmission of the last mini-slot in a slot has a GAP symbol; optionally, in order to save AGC symbols, for the case of (2) configuring a GAP symbol for each mini-slot, If the mini-slot is a continuous transmission, there is no transmission switching in the middle of the mini-slot, and the mini-slot before the last mini-slot does not need to set GAP.
  • M AGC symbols are configured in a slot, and the SL transmission of each mini-slot starts after each AGC symbol.
  • M is the number of mini-slots in a slot; optionally, the M here
  • the AGC symbols can be AGC symbols based on slot transmission, that is, mini-slot transmission multiplexes AGC symbols based on slot transmission.
  • a first symbol is configured between two adjacent mini-slots in a slot, and the first symbol is a GAP symbol or an AGC symbol.
  • the method further includes one or more of the following:
  • the terminal transmits the AGC symbol after the DMRS symbol;
  • the terminal selects a DMRS pattern (DMRS pattern) that does not conflict with the AGC symbols.
  • DMRS patterns are different resource mappings of DMRS. This is equivalent to selecting a DMRS resource that does not conflict with AGC.
  • the receiving end UE does not expect DMRS to conflict with AGC.
  • the starting position of the mini-slot satisfies one or more of the following:
  • the starting position of the mini-slot is located X symbols after the previous PSCCH transmission opportunity, where X is the time to demodulate the PSCCH;
  • the method when the transmission resources of the PSFCH overlap with the transmission resources of the mini-slot, the method further includes one or more of the following:
  • the terminal transmits PSFCH; that is, PSFCH transmission priority is higher than mini-slot transmission and is not transmitted on mini-slot resources;
  • the terminal ends the transmission of the mini-slot early, including: the terminal determines the end position of the mini-slot to be the starting position of the PSFCH; the terminal delays the transmission of the mini-slot, including: the terminal determines the starting position of the mini-slot to be the PSFCH end position.
  • the terminal transmits PSFCH in part of the symbols in the mini-slot, and transmits data in another part of the symbols in the mini-slot (i.e., the remaining mini-slot symbols).
  • mini-slot length equal to 7 symbols as an example, there are two mini-slots in one slot.
  • the first symbol of each mini-slot is configured as an AGC symbol, and the last symbol of each mini-slot is configured as a GAP symbol.
  • SL can only start transmission from the starting position of the mini-slot.
  • the starting position of the SL transmission of the first mini-slot in a slot has an AGC symbol, that is, when the SL starts transmitting from the first available mini-slot in the slot, if there are subsequent mini-slots , the AGC symbols of subsequent mini-slots are skipped and not transmitted or used to transmit data.
  • the end position of the SL transmission of the last mini-slot in a slot has a GAP symbol, that is, when SL starts transmission from the first available mini-slot in the slot, only the GAP of the last mini-slot is retained. symbol.
  • Other GAP symbols can be filled with data.
  • the mini-slot can be the transmission unit starting from the AGC symbol, similar to that shown in Figure 4a.
  • the mini-slot does not need to include the AGC transmission unit.
  • the AGC symbol always appears in symbol 0 and symbol 7.
  • the GAP symbol in the first mini-slot can be used as a GAP, or can be used to transmit data when there is data transmission in the first mini-slot.
  • the starting position of the SL transmission of the first mini-slot has an AGC symbol, that is, the first mini-slot is configured with an AGC symbol
  • the end position of the SL transmission of the last mini-slot is A GAP symbol, that is, the last mini-slot is configured with a GAP symbol
  • a first symbol is configured between two adjacent mini-slots in a slot.
  • the first symbol is a GAP symbol or an AGC symbol, that is, every two mini-slots are configured with a GAP symbol.
  • a GAP/AGC symbol is configured in the middle of the slot. As shown in Figure 4c.
  • the role of GAP/AGC symbols has the following different implementations:
  • this symbol can be used as a GAP symbol.
  • this symbol can be used as an AGC symbol or filled with data.
  • this symbol can be used as the AGC symbol.
  • the execution subject may be a transmission device.
  • a transmission device performing a transmission method is used as an example to describe the transmission device provided by the embodiment of the present application.
  • an embodiment of the present application provides a transmission device 500, including:
  • Transmission module 501 used for SL transmission through mini-slot
  • the length of the mini-slot is less than one time slot, and one slot includes the starting positions of one or more mini-slots.
  • the mini-slot satisfies one or more of the following:
  • the starting position of the mini-slot has an AGC symbol
  • the starting position of the SL transmission of the first mini-slot in a slot has an AGC symbol
  • the end position of the SL transmission of the last mini-slot in a slot has a GAP symbol
  • M AGC symbols are configured in one slot, and the SL transmission of each mini-slot starts after each of the AGC symbols.
  • the M is the number of mini-slots in a slot;
  • a first symbol is configured between two adjacent mini-slots in a slot, and the first symbol is a GAP symbol or an AGC symbol.
  • the device further includes: a first processing module, used for one or more of the following:
  • a DMRS pattern that does not conflict with the AGC symbols is selected.
  • the starting position of the mini-slot satisfies one or more of the following:
  • the starting position of the mini-slot is located X symbols after the previous physical direct link control channel PSCCH transmission opportunity, where X is the time to demodulate the PSCCH;
  • the device when the transmission resources of the PSFCH overlap with the transmission resources of the mini-slot, the device further includes: a second processing module, used for one or more of the following:
  • a part of the symbols in the mini-slot transmits the PSFCH, and another part of the symbols in the mini-slot transmits data.
  • the second processing module is specifically used to:
  • the starting position of the mini-slot is determined to be the end position of the PSFCH.
  • the transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or something other than a terminal. other equipment.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment of Figures 3 to 4c, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602.
  • the memory 602 stores programs or instructions that can be run on the processor 601, for example.
  • the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, each step of the above transmission method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each step of the above transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details are not repeated here.
  • Embodiments of the present application also provide a terminal, including a processor and a communication interface.
  • the processor is used by the terminal to perform direct link SL transmission through a mini-slot; wherein the length of the mini-slot is less than one slot, A slot includes the starting positions of one or more mini-slots.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 7 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, etc. At least some parts.
  • the terminal 700 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 710 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042.
  • the graphics processor 7041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072 .
  • Touch panel 7071 also called touch screen.
  • the touch panel 7071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 7072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 701 after receiving downlink data from the network side device, can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 709 may be used to store software programs or instructions as well as various data.
  • Memory 709 may primarily include stored programs A first storage area for programs or instructions and a second storage area for storing data, where the first storage area can store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. .
  • memory 709 may include volatile memory or non-volatile memory, or memory 709 may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus
  • the processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above-mentioned modem processor may not be integrated into the processor 710.
  • the processor 710 is used for SL transmission through mini-slot;
  • the length of the mini-slot is less than one time slot, and one slot includes the starting positions of one or more mini-slots.
  • the mini-slot satisfies one or more of the following:
  • the starting position of the mini-slot has an AGC symbol
  • the starting position of the SL transmission of the first mini-slot in a slot has an AGC symbol
  • the end position of the SL transmission of the last mini-slot in a slot has a GAP symbol
  • M AGC symbols are configured in one slot, and the SL transmission of each mini-slot starts after each of the AGC symbols.
  • the M is the number of mini-slots in a slot;
  • a first symbol is configured between two adjacent mini-slots in a slot, and the first symbol is a GAP symbol or an AGC symbol.
  • the processor 710 is used for one or more of the following:
  • the starting position of the mini-slot satisfies one or more of the following:
  • the starting position of the mini-slot is located X symbols after the previous physical direct link control channel PSCCH transmission opportunity, where X is the time to demodulate the PSCCH;
  • the processor 710 is used for one or more of the following:
  • a part of the symbols in the mini-slot transmits the PSFCH, and another part of the symbols in the mini-slot transmits data.
  • processor 710 is specifically used to:
  • the starting position of the mini-slot is determined to be the end position of the PSFCH.
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above-mentioned transmission method embodiment is implemented and the same can be achieved. To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement each of the above transmission method embodiments. The process can achieve the same technical effect. To avoid repetition, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above transmission method embodiment.
  • Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种传输方法、设备及可读存储介质，属于通信技术领域，该方法包括：终端通过微时隙mini-slot进行直通链路SL传输；其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。

Description

传输方法、设备及可读存储介质
相关申请的交叉引用
本申请主张在2022年6月21日在中国提交的中国专利申请No.202210709385.3的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种传输方法、设备及可读存储介质。
背景技术
按照现有直通链路(sidelink，SL)信道结构，每个SL传输(例如物理直通链路控制信道(physical sidelink control channel，PSCCH)或者/物理直通链路共享信道(physical sidelink shared channel，PSSCH))都以某个固定长度(例如一个时隙(slot))为最小传输单位，从某个固定(周期)位置(如slot起始位置)开始传输。而在非授权频段，在先听后发(listen before talk，LBT)信道接入机制下，信道检测为空的时间不确定，如果信道为空的时间不是slot的起始位置，则SL不能立马进行传输，需要延迟到下一个slot的起始位置才可以进行传输，这样不但降低了资源利用率，在延迟的过程中，信道也可能被非授权频段的其他设备抢占。因此，SL现有的基于slot的传输在非授权频段的性能不佳。
发明内容
本申请实施例提供一种传输方法、设备及可读存储介质，能够解决SL现有的基于slot的传输在非授权频段的性能不佳的问题。
第一方面，提供了一种传输方法，该方法包括：
终端通过mini-slot进行直通链路SL传输；
其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
第二方面，提供了一种传输装置，包括：
传输模块，用于通过mini-slot进行SL传输；
其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
第三方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面，提供了一种终端，包括处理器及通信接口，其中，所述处理器用于终端通过微时隙mini-slot进行直通链路SL传输；
其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
第五方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法。
第七方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。
第八方面，提供了一种电子设备，被配置为执行如第一方面所述的方法的步骤。
在本申请实施例中，通过采用基于mini-slot的SL传输，使得SL UE可以在非授权频段上增加传输机会，提高资源利用率。
附图说明
图1是本申请实施提供的无线通信系统的框图；
图2是现有SL信道结构；
图3是本申请实施立体提供的传输方法的流程示意图；
图4a是本申请实施例提供的应用示例的示意图之一；
图4b是本申请实施例提供的应用示例的示意图之一；
图4c是本申请实施例提供的应用示例的示意图之一；
图5是本申请实施例提供的传输装置的结构示意图；
图6是本申请实施例提供的通信设备的结构示意图；
图7是本申请实施例提供的终端的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也 可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或无线保真(Wireless Fidelity，WiFi)节点等，基站可被称为节点B、演进节点B(Evolved Node B，eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。
为更好理解本申请的技术方案，首先对以下内容进行介绍：
非授权频段
在未来通信系统中，非授权频段(unlicensed band)可以作为授权频段(licensed band)的补充帮助运营商对服务进行扩容。为了与NR部署保持一致并尽可能的最大化基于NR的非授权接入，非授权频段可以工作在5GHz，37GHz和60GHz频段。非授权频段的大带宽(80或者100MHz)能够减小基站和终端(User Equipment，UE)的实施复杂度。由于非授权频段由多种技术(radioaccesstechnology，RATs)共用，例如WiFi，雷达，LTE-辅助授权接入(Licensed-Assisted Access，LAA)等，因此在某些国家或者区域，非授权频段在使用时必须符合规定(regulation)以保证所有设备可以公平的使用该资源，例如(listen before talk，LBT)，最大信道占用时间(maximum channel occupancy time，MCOT)等规则。当传输节点需要发送信息是，需要先做LBT时，对周围的节点进行功率检测(energy detection，ED)，当检测到的功率低于一个门限时，认为信道为空(idle)，传输节点可以进行发送。反之，则认为信道为忙，传输节点不能进行发送。传输节点可以是基站，UE，WiFi AP等等。传输节点开始传输后，占用的信道时间(channel occupancy time，COT)不能超过MCOT。此外，根据占用信道带宽(occupied channel bandwidth，OCB)regulation，在非授权频段上，传输节点在每次传输时要占用整个频带的至少70％(60GHz)或者80％(5GHz)的带宽。
在NRU中常用的LBT的类型(type)可以分为Type1，Type2A，Type2B和Type2C。Type1LBT是基于回退(back-off)的信道侦听机制，当传输节点侦听到信道为忙时，进行回退，继续做侦听，直到侦听到信道为空。Type2C是发送节点不做LBT，即no LBT或者immediate transmission。Type2A和Type2B LBT是one-shot LBT，即节点在传输前做一次LBT，信道为空则进行传输，信道为忙则不传输。区别是Type2A在25us内做LBT，适用于在共享COT时，两个传输之间的gap大于等于25us。而Type2B在16us内做LBT，适用于在共享COT时，两个传输之间的gap等于16us。此外，还有Type2LBT，适用于LAA/eLAA/FeLAA，当共享COT时，两个传输之间的gap大于等于25us，eNB和UE可以采用Type 2LBT。此外，在frequency range 2-2中，LBT的类型有Type1，Type2和Type3.Type1是基于回退的信道侦听机制，Type2是one-shot LBT，在8us内做5us的LBT，Type3是不做LBT。
一个DL/UL transmission burst是由基站或者UE发送的一组gap不大于16us的传输。对于一个DL/UL transmission burst中的传输，基站或者UE可以在gap后不做LBT直接传输。当传输之间的gap大于16us，可以被看做是单独的DL/UL transmission burst。
SL简介
直通链路(sidelink，或译为旁链路，副链路，侧链路，边链路等)传输，即终端(User Equipment，UE)之间直接在物理层上进行数据传输。LTE sidelink是基于广播进行通讯的，可用于支持车联网(vehicle to everything，V2X)的基本安全类通信，但不适用于其他更高级的V2X业务。5G NR(New Radio)系统支持更加先进的sidelink传输设计，例如，单播，多播或组播等，从而可以支持更全面的业务类型。
SL物理信道
如图2所示，在每个SL传输之前需要一个自动增益控制(Automatic Gain Control，AGC)符号，在每个传输之后需要一个间隔(GAP)符号。AGC符号一般是下一个符号的重复传输，例如PSCCH/PSSCH或者物理直通链路反馈信道(physical sidelink feedback channel，PSFCH)。图中2个符号的PSFCH，第一个符号用来做AGC。SL UE只能slot内固定的位置开始PSCCH/PSSCH或者PSFCH的传输。其中，SCI为侧行链路控制信息(sidelinkcontrolinformation，SCI)，PTRS为相位跟踪参考信号(Phase-tracking reference signals，PTRS)。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的传输方法进行详细地说明。
参见图3，本申请实施例提供一种传输方法，包括：
步骤301：终端通过微时隙(mini-slot)进行SL传输；
其中，mini-slot的长度小于一个slot，一个slot内包括一个或者多个mini-slot的起始位置。
上述终端具体可以是在SL通信中作为发送端的终端。
在本申请实施例中，通过采用基于mini-slot的SL传输，使得SL UE可以在非授权频段上增加传输机会，提高资源利用率。
具体地，终端采用mini-slot方式进行SL传输，mini-slot是的长度小于等于13个符号的传输单元(即mini-slot的长度要小于一个slot)，例如mini-slot的长度可以是5、7个符号等。其中SL传输可以是PSCCH、PSSCH或者物理直通链路反馈信道(physical sidelink feedback channel，PSFCH)。一个slot内可以有一个或者多个mini-slot的起始位置。Mini-slot的起始位置和/长度可以是协议预定义或者(预)配置。
在一种可能的实施方式中，mini-slot满足以下一项或者多项：
(1)mini-slot的起始位置有一个AGC符号；为每个mini-slot都配置一个AGC符号是为了UE接收时可以通过AGC符号的测量准确调整功率接收范围。
(2)mini-slot的结束位置有一个GAP符号；为每一个mini-slot配置一个GAP符号是为了保证UE有足够传输切换时间。
(3)一个slot中的第一个mini-slot的SL传输的起始位置有一个AGC符号；可选地，为了节省AGC符号，对应(1)中为每个mini-slot都配置一个AGC符号的情况，如果mini-slot是连续的传输，则第一次基于AGC符号的测量准确调整功率接收范围之后，后面的mini-slot可不设置AGC符号。可选地，每个AGC符号复制下一个或上一个SL传输的符号；
可选地，slot内的AGC符号为协议特定或配置的序列(例如，M序列或Gold序列，Zadoff-Chu序列，low-PAPR序列)或使用特定值初始化的序列；
可选地，基于Slot的SL传输的接收终端(Rx UE)根据slot中所有的AGC符号做 速率匹配(rate matching)；
(4)一个slot中的最后一个mini-slot的SL传输的结束位置有一个GAP符号；可选地，为了节省AGC符号，对于(2)为每个mini-slot都配置一个GAP符号的情况，如果mini-slot是连续的传输，mini-slot中间不存在传输切换，最后一个mini-slot之前的mini-slot可不设置GAP。
(5)一个slot中配置M个AGC符号，每个mini-slot的SL传输分别从每个AGC符号后开始，M为一个slot内的mini-slot的个数；可选地，这里的M个AGC符号可以是基于slot传输的AGC符号，即mini-slot传输复用slot based传输的AGC符号。
(6)一个slot中的两个相邻mini-slot中间配置一个第一符号，第一符号为GAP符号或者AGC符号。
在一种可能的实施方式中，方法还包括以下一项或者多项：
(1)在mini-slot的AGC符号和解调参考信号(Demodulation Reference Signal，DMRS)符号冲突的情况下，终端在DMRS符号之后传输AGC符号；
(2)在mini-slot的AGC符号和DMRS符号冲突的情况下，终端将DMRS符号向后移位一个符号；
(3)在mini-slot的AGC符号和DMRS符号冲突的情况下，终端选择一个与AGC符号不冲突的DMRS图样(DMRS pattern)，不同的DMRS pattern是DMRS不同的资源映射。相当于选一个和AGC不冲突的DMRS资源，相应地接收端UE不期望DMRS与AGC冲突。
在一种可能的实施方式中，mini-slot的起始位置满足以下一项或者多项：
(1)mini-slot的起始位置位于上一个PSCCH传输机会的X个符号后，其中X为解调PSCCH的时间；
(2)mini-slot的起始位置前有Y个GAP符号，终端在GAP符号内执行延迟先听后发(deferred LBT)。
在一种可能的实施方式中，在PSFCH的传输资源与mini-slot的传输资源重叠的情况下，方法还包括以下一项或者多项：
(1)终端传输PSFCH；也即PSFCH传输优先级高于mini-slot传输，不在mini-slot资源上传输；
(2)终端提前结束mini-slot的SL传输，或者，终端推后开始mini-slot的SL传输；
具体地，终端提前结束传输mini-slot，包括：终端确定mini-slot的结束位置为PSFCH的起始位置；终端推后开始传输mini-slot，包括：终端确定mini-slot的起始位置为PSFCH的结束位置。
(3)终端在mini-slot内的一部分符号传输PSFCH，在mini-slot内的另一部分符号(即剩余的mini-slot符号)传输数据。
下面结合具体应用示例对本申请的技术方案进行描述：
示例一：
参见图4a和图4b，以mini-slot长度等于7个符号为例，一个slot内有两个mini-slot。每个mini-slot的第一个符号配置为AGC符号，每个mini-slot的最后一个符号配置为GAP符号。SL只能从mini-slot的起始位置开始传输。实际传输的AGC和保留的GAP符号有如下几种方式：
1.mini-slot的起始位置有一个AGC符号，mini-slot的结束位置有一个GAP符号，也即无论SL在哪一个mini-slot传输，AGC和GAP符号均存在。
2.一个slot中的第一个mini-slot的SL传输的起始位置有一个AGC符号，也即当SL从slot内的第一个可用mini-slot开始传输时，如果有后续的mini-slot，后续mini-slot的AGC符号跳过不传输或者用来传输数据。
3.一个slot中的最后一个mini-slot的SL传输的结束位置有一个GAP符号，也即当SL从slot内的第一个可用mini-slot开始传输时，只保留最后一个mini-slot的GAP符号。其他GAP符号可用数据填充。
当AGC的传输位置在slot内固定时，mini-slot可以是从AGC符号开始的传输单元，类似于图4a中所示。此外，mini-slot也可以不包含AGC的传输单元。在图4b中，一个slot内有两个mini-slot，但是每个mini-slot的长度只有6个符号。AGC符号固定出现在符号0和符号7第一个mini-slot的GAP符号可以作为GAP，也可以在第一个mini-slot有数据传输的时候用来传输数据。
示例二：
参见图4c，一个slot内，第一个mini-slot的SL传输的起始位置有一个AGC符号，即第一个mini-slot配置一个AGC符号，最后一个mini-slot的SL传输的结束位置有一个GAP符号，即最后一个mini-slot配置一个GAP符号，一个slot中的两个相邻mini-slot中间配置一个第一符号，该第一符号为GAP符号或者AGC符号，即每两个mini-slot中间配置一个GAP/AGC符号。如图4c所示。GAP/AGC符号的作用有以下几种不同实施方式
1.当前一个mini-slot有数据传输，后一个mini-slot没有数据传输时，该符号可作为GAP符号
2.当前后两个mini-slot均有数据传输时，该符号可以作为AGC符号，或者填充数据。
3.当前一个mini-slot没有数据传输，后一个mini-slot有数据传输时，该符号可作为AGC符号
需要说明的是，没有数据传输可以是因为非授权频段信道为忙(LBT失败)，或者SL UE没有数据可传。
本申请实施例提供的传输方法，执行主体可以为传输装置。本申请实施例中以传输装置执行传输方法为例，说明本申请实施例提供的传输装置。
参见图5，本申请实施例提供一种传输装置500，包括：
传输模块501，用于通过mini-slot进行SL传输；
其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
在一种可能的实施方式中，所述mini-slot满足以下一项或者多项：
所述mini-slot的起始位置有一个AGC符号；
所述mini-slot的结束位置有一个GAP符号；
一个slot中的第一个所述mini-slot的SL传输的起始位置有一个AGC符号；
一个slot中的最后一个所述mini-slot的SL传输的结束位置有一个GAP符号；
一个slot中配置M个AGC符号，每个所述mini-slot的SL传输分别从每个所述AGC符号后开始，所述M为一个slot内的所述mini-slot的个数；
一个slot中的两个相邻所述mini-slot中间配置一个第一符号，所述第一符号为GAP符号或者AGC符号。
在一种可能的实施方式中，所述装置还包括：第一处理模块，用于以下一项或者多项：
在所述mini-slot的AGC符号和解调参考信号DMRS符号冲突的情况下，在所述DMRS符号之后传输所述AGC符号；
在所述mini-slot的AGC符号和DMRS符号冲突的情况下，将所述DMRS符号向后移位一个符号；
在所述mini-slot的AGC符号和DMRS符号冲突的情况下，选择一个与所述AGC符号不冲突的DMRS图样。
在一种可能的实施方式中，所述mini-slot的起始位置满足以下一项或者多项：
所述mini-slot的起始位置位于上一个物理直通链路控制信道PSCCH传输机会的X个符号后，其中X为解调PSCCH的时间；
所述mini-slot的起始位置前有Y个GAP符号，在所述GAP符号内执行延迟先听后发deferred LBT。
在一种可能的实施方式中，在PSFCH的传输资源与所述mini-slot的传输资源重叠的情况下，所述装置还包括：第二处理模块，用于以下一项或者多项：
传输所述PSFCH；
提前结束所述mini-slot的SL传输，或者，推后开始所述mini-slot的SL传输；
在所述mini-slot内的一部分符号传输所述PSFCH，在所述mini-slot内的另一部分符号传输数据。
在一种可能的实施方式中，所述第二处理模块，具体用于：
确定所述mini-slot的结束位置为所述PSFCH的起始位置；
确定所述mini-slot的起始位置为所述PSFCH的结束位置。
本申请实施例中的传输装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之 外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的传输装置能够实现图3至图4c的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
可选的，如图6所示，本申请实施例还提供一种通信设备600，包括处理器601和存储器602，存储器602上存储有可在所述处理器601上运行的程序或指令，例如，该通信设备600为终端时，该程序或指令被处理器601执行时实现上述传输方法实施例的各个步骤，且能达到相同的技术效果。该通信设备600为网络侧设备时，该程序或指令被处理器601执行时实现上述传输方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，处理器用于终端通过微时隙mini-slot进行直通链路SL传输；其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。该终端实施例与上述终端侧方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709以及处理器710等中的至少部分部件。
本领域技术人员可以理解，终端700还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元704可以包括图形处理单元(Graphics Processing Unit，GPU)7041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072中的至少一种。触控面板7071，也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元701接收来自网络侧设备的下行数据后，可以传输给处理器710进行处理；另外，射频单元701可以向网络侧设备发送上行数据。通常，射频单元701包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程 序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器709可以包括易失性存储器或非易失性存储器，或者，存储器709可以包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器709包括但不限于这些和任意其它适合类型的存储器。
处理器710可包括一个或多个处理单元；可选的，处理器710集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
其中，处理器710，用于通过mini-slot进行SL传输；
其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
可选地，所述mini-slot满足以下一项或者多项：
所述mini-slot的起始位置有一个AGC符号；
所述mini-slot的结束位置有一个GAP符号；
一个slot中的第一个所述mini-slot的SL传输的起始位置有一个AGC符号；
一个slot中的最后一个所述mini-slot的SL传输的结束位置有一个GAP符号；
一个slot中配置M个AGC符号，每个所述mini-slot的SL传输分别从每个所述AGC符号后开始，所述M为一个slot内的所述mini-slot的个数；
一个slot中的两个相邻所述mini-slot中间配置一个第一符号，所述第一符号为GAP符号或者AGC符号。
可选地，所述处理器710，用于以下一项或者多项：
在所述mini-slot的AGC符号和解调参考信号DMRS符号冲突的情况下，在所述DMRS符号之后传输所述AGC符号；
在所述mini-slot的AGC符号和DMRS符号冲突的情况下，将所述DMRS符号向后移位一个符号；
在所述mini-slot的AGC符号和DMRS符号冲突的情况下，选择一个与所述AGC符 号不冲突的DMRS图样。
可选地，所述mini-slot的起始位置满足以下一项或者多项：
所述mini-slot的起始位置位于上一个物理直通链路控制信道PSCCH传输机会的X个符号后，其中X为解调PSCCH的时间；
所述mini-slot的起始位置前有Y个GAP符号，在所述GAP符号内执行延迟先听后发deferred LBT。
可选地，在PSFCH的传输资源与所述mini-slot的传输资源重叠的情况下，所述处理器710，用于以下一项或者多项：
传输所述PSFCH；
提前结束所述mini-slot的SL传输，或者，推后开始所述mini-slot的SL传输；
在所述mini-slot内的一部分符号传输所述PSFCH，在所述mini-slot内的另一部分符号传输数据。
可选地，所述处理器710，具体用于：
确定所述mini-slot的结束位置为所述PSFCH的起始位置；
确定所述mini-slot的起始位置为所述PSFCH的结束位置。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可 包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (17)

  1. 一种传输方法，包括：
    终端通过微时隙mini-slot进行直通链路SL传输；
    其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
  2. 根据权利要求1所述的方法，其中，所述mini-slot满足以下一项或者多项：
    所述mini-slot的起始位置有一个自动增益控制AGC符号；
    所述mini-slot的结束位置有一个间隔GAP符号；
    一个slot中的第一个所述mini-slot的SL传输的起始位置有一个AGC符号；
    一个slot中的最后一个所述mini-slot的SL传输的结束位置有一个GAP符号；
    一个slot中配置M个AGC符号，每个所述mini-slot的SL传输分别从每个所述AGC符号后开始，所述M为一个slot内的所述mini-slot的个数；
    一个slot中的两个相邻所述mini-slot中间配置一个第一符号，所述第一符号为GAP符号或者AGC符号。
  3. 根据权利要求1所述的方法，其中，所述方法还包括以下一项或者多项：
    在所述mini-slot的AGC符号和解调参考信号DMRS符号冲突的情况下，所述终端在所述DMRS符号之后传输所述AGC符号；
    在所述mini-slot的AGC符号和DMRS符号冲突的情况下，所述终端将所述DMRS符号向后移位一个符号；
    在所述mini-slot的AGC符号和DMRS符号冲突的情况下，所述终端选择一个与所述AGC符号不冲突的DMRS图样。
  4. 根据权利要求1所述的方法，其中，所述mini-slot的起始位置满足以下一项或者多项：
    所述mini-slot的起始位置位于上一个物理直通链路控制信道PSCCH传输机会的X个符号后，其中X为解调PSCCH的时间；
    所述mini-slot的起始位置前有Y个GAP符号，所述终端在所述GAP符号内执行延迟先听后发deferred LBT。
  5. 根据权利要求1所述的方法，其中，在物理直通链路反馈信道PSFCH的传输资源与所述mini-slot的传输资源重叠的情况下，所述方法还包括以下一项或者多项：
    所述终端传输所述PSFCH；
    所述终端提前结束所述mini-slot的SL传输，或者，所述终端推后开始所述mini-slot的SL传输；
    所述终端在所述mini-slot内的一部分符号传输所述PSFCH，在所述mini-slot内的另一部分符号传输数据。
  6. 根据权利要求5所述的方法，其中，
    所述终端提前结束传输mini-slot，包括：
    所述终端确定所述mini-slot的结束位置为所述PSFCH的起始位置；
    所述终端推后开始传输所述mini-slot，包括：
    所述终端确定所述mini-slot的起始位置为所述PSFCH的结束位置。
  7. 一种传输装置，包括：
    传输模块，用于通过mini-slot进行SL传输；
    其中，所述mini-slot的长度小于一个时隙slot，一个slot内包括一个或者多个所述mini-slot的起始位置。
  8. 根据权利要求7所述的装置，其中，所述mini-slot满足以下一项或者多项：
    所述mini-slot的起始位置有一个AGC符号；
    所述mini-slot的结束位置有一个GAP符号；
    一个slot中的第一个所述mini-slot的SL传输的起始位置有一个AGC符号；
    一个slot中的最后一个所述mini-slot的SL传输的结束位置有一个GAP符号；
    一个slot中配置M个AGC符号，每个所述mini-slot的SL传输分别从每个所述AGC符号后开始，所述M为一个slot内的所述mini-slot的个数；
    一个slot中的两个相邻所述mini-slot中间配置一个第一符号，所述第一符号为GAP符号或者AGC符号。
  9. 根据权利要求7所述的装置，其中，所述装置还包括：第一处理模块，用于以下一项或者多项：
    在所述mini-slot的AGC符号和解调参考信号DMRS符号冲突的情况下，在所述DMRS符号之后传输所述AGC符号；
    在所述mini-slot的AGC符号和DMRS符号冲突的情况下，将所述DMRS符号向后移位一个符号；
    在所述mini-slot的AGC符号和DMRS符号冲突的情况下，选择一个与所述AGC符号不冲突的DMRS图样。
  10. 根据权利要求7所述的装置，其中，所述mini-slot的起始位置满足以下一项或者多项：
    所述mini-slot的起始位置位于上一个物理直通链路控制信道PSCCH传输机会的X个符号后，其中X为解调PSCCH的时间；
    所述mini-slot的起始位置前有Y个GAP符号，在所述GAP符号内执行延迟先听后发deferred LBT。
  11. 根据权利要求7所述的装置，其中，在PSFCH的传输资源与所述mini-slot的传输资源重叠的情况下，所述装置还包括：第二处理模块，用于以下一项或者多项：
    传输所述PSFCH；
    提前结束所述mini-slot的SL传输，或者，推后开始所述mini-slot的SL传输；
    在所述mini-slot内的一部分符号传输所述PSFCH，在所述mini-slot内的另一部分符号传输数据。
  12. 根据权利要求11所述的装置，其中，
    所述第二处理模块，具体用于：
    确定所述mini-slot的结束位置为所述PSFCH的起始位置；
    确定所述mini-slot的起始位置为所述PSFCH的结束位置。
  13. 一种终端，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至6任一项所述的传输方法的步骤。
  14. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至6任一项所述的传输方法的步骤。
  15. 一种芯片，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1至6任一项所述的传输方法的步骤。
  16. 一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如权利要求1至6任一项所述的传输方法的步骤。
  17. 一种电子设备，被配置为执行如权利要求1至6任一项所述的传输方法的步骤。
PCT/CN2023/100175 2022-06-21 2023-06-14 传输方法、设备及可读存储介质 WO2023246586A1 (zh)

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