WO2021062813A1 - Procédé de détermination de ressource de domaine temporel pour une transmission de données, dispositif et support de stockage informatique - Google Patents

Procédé de détermination de ressource de domaine temporel pour une transmission de données, dispositif et support de stockage informatique Download PDF

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Publication number
WO2021062813A1
WO2021062813A1 PCT/CN2019/109739 CN2019109739W WO2021062813A1 WO 2021062813 A1 WO2021062813 A1 WO 2021062813A1 CN 2019109739 W CN2019109739 W CN 2019109739W WO 2021062813 A1 WO2021062813 A1 WO 2021062813A1
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WIPO (PCT)
Prior art keywords
time domain
domain resource
repeated transmission
transmission
symbol
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PCT/CN2019/109739
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English (en)
Chinese (zh)
Inventor
方昀
徐婧
史志华
陈文洪
黄莹沛
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201980095224.6A priority Critical patent/CN113711517B/zh
Priority to PCT/CN2019/109739 priority patent/WO2021062813A1/fr
Publication of WO2021062813A1 publication Critical patent/WO2021062813A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • This application relates to the field of communication technology, and in particular to methods, devices and computer storage media for determining time domain resources for data transmission.
  • the reliability of data transmission can be improved through repeated data transmission.
  • the repeated transmission of the data configured by the network equipment is configured based on the time domain resources of the continuous repeated transmission.
  • the existing communication system supports the flexible time slot configuration and the transmission of other important information of the system, which makes it difficult in the communication system. Find continuous time domain resources for repeated transmission of data.
  • the present application provides a method, device and computer storage medium for determining time domain resources for data transmission, which reduces the length of continuous time domain resources required for repeated data transmission, thereby reducing the delay of repeated data transmission.
  • an embodiment of the present application provides a method for determining a time domain resource for data transmission, including:
  • the target time domain resource of the repeated transmission is determined, the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, and the second time domain resource is A domain resource is a time domain resource for initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource ,
  • the target time domain resource includes the fourth time domain resource;
  • the data is transmitted on the target time domain resource of the repeated transmission.
  • the repeated transmission of the data configured by the network device is configured based on the time domain resources of the continuous repeated transmission.
  • the number of repetitions of the network device configuration repeated transmission is 3.
  • each repeated transmission needs to occupy 2 symbols, so 6 consecutive symbols are needed for repeated data transmission.
  • the existing communication system supports flexible time slot configuration and the transmission of other important system information, resulting in the communication system It is difficult to find continuous time domain resources for repeated transmission of data.
  • the target time domain resource of the repeated transmission is determined according to the first time domain resource and the second time domain resource in the repeated transmission.
  • the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission.
  • the second time domain resource is a time domain resource for initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a second time domain resource other than the third time domain resource.
  • the target time domain resource includes the fourth time domain resource, for example, the second time domain resource is the first symbol to the tenth symbol of the 10th slot, and the first time slot The resource is the third symbol to the fifth symbol of the 10th slot, then the third time slot resource overlapping the first time slot resource in the second time domain resource can be the third symbol to the fifth symbol of the 10th slot Five symbols, the fourth time domain resource can be the first symbol, the second symbol, and the sixth symbol to the tenth symbol of the tenth slot, and can be used in the first symbol and the tenth symbol of the tenth slot. Data is transmitted on the two symbols and the sixth symbol to the tenth symbol, which reduces the length of continuous time domain resources required for repeated data transmission, thereby reducing the time delay of repeated data transmission.
  • the second time domain resource is based on the time domain resource of the first transmission in the repeated transmission, the number of repetitions of the repeated transmission, and the TRP switching between any two adjacent repeated transmissions.
  • the second time domain resource is based on the start time of the first transmission in the repeated transmission, the length of the time domain resource required for each repeated transmission, and the difference between any two adjacent repeated transmissions Determined by the switching interval between each TRP, each TRP corresponds to a TCI state or corresponds to an index value configured by a higher layer.
  • the first time domain resource is determined according to time domain resource indication information
  • the time domain resource indication information includes first information and/or second information
  • the first information includes unavailability
  • the second information includes SFI.
  • the time domain resource indication information includes first information, and the first time domain resource is a time domain resource indicated by the first information.
  • the time domain resource indication information includes first information, the first information includes signal configuration information, and the first time domain resource is the first time domain occupied by the signal indicated by the signal configuration information. Five time domain resources.
  • the second time domain resource includes the fifth time domain resource, and the frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission and the signal indicated by the signal configuration information
  • the occupied frequency domain resources are the same.
  • the signal indicated by the signal configuration information includes at least one of the following: PRACH, SRS, SSB, and PRS.
  • the time domain resource indication information includes second information, and the second information includes uplink resources, downlink resources, and flexible resources;
  • the first time domain resource is the downlink resource, or the first part of the downlink resource and the flexible resource, or the downlink resource and the All flexible resources;
  • the first time domain resource is the uplink resource, or the uplink resource and the first part of the flexible resource, or the uplink resource and the All of the flexible resources.
  • the time domain resource indication information is dynamically configured through the PDCCH, or semi-statically configured through high-level signaling, or pre-configured.
  • the first information is transmitted through physical layer signaling or higher layer signaling.
  • the time domain resource of each repeated transmission in the repeated transmission is a continuous time domain resource.
  • the length of the time domain resource for each repeated transmission is the same, and the length of the continuous time domain resources in the target time domain resource is greater than or equal to the time domain resource for each repeated transmission length.
  • the length of the time domain resource for each repeated transmission is different, the starting resource in the target time domain resource is determined according to the continuous resource mapping rule, and the target time domain resource The length of is less than the product of the length of the time domain resource required for each transmission and the number of repetitions;
  • the transmitting data on the repeatedly transmitted target time domain resource includes:
  • N is a positive integer, n is greater than 0 and less than or equal to the number of repetitions, and the length of the first part is the same as the length of the time domain resource for the nth repetitive transmission;
  • the data is transmitted on the time domain resource for the nth repeated transmission .
  • the time domain resource of at least one repeated transmission in the repeated transmission is a non-contiguous time domain resource, the length of the time domain resource of each repeated transmission is the same, and the target time domain resource
  • the starting resource in is determined according to the rules of continuous resource mapping
  • the transmitting data on the repeatedly transmitted target time domain resource includes:
  • N is a positive integer, n is greater than 0 and less than or equal to the number of repetitions, and the length of the first part is the same as the length of the time domain resource for the nth repetitive transmission;
  • the second part of the data is transmitted on the time domain resource after the time domain resource that is repeatedly transmitted for the nth time in the target time domain resource, where the second part is the data other than the first part Content.
  • the length of the time domain resource for the nth repeated transmission in the repeated transmission is less than the length of the time domain resource required for each repeated transmission
  • the transmitting data on the repeatedly transmitted target time domain resource includes:
  • the data is respectively transmitted on the time domain resources of the first to the n-1th repeated transmissions, where n is a positive integer, and n is greater than 0 and less than or equal to the number of repetitions.
  • the transmitting data on the target time domain resource of the repeated transmission further includes:
  • the first part of the data is transmitted on the time domain resource of the nth repeated transmission, and the length of the first part is the same as the length of the time domain resource of the nth repeated transmission.
  • the time domain resource of at least one repeated transmission in the repeated transmission is a non-contiguous time domain resource, and the length of the time domain resource of each repeated transmission is the same;
  • the method further includes:
  • the second part of the data is transmitted on the time domain resource after the time domain resource that is repeatedly transmitted for the nth time in the target time domain resource, where the second part is the data other than the first part Content.
  • the first time domain resource includes a time domain resource determined according to a continuous resource mapping rule, and the starting resource in the target time domain resource is determined according to the continuous resource mapping rule The first time domain resource that can be occupied by the repeated transmission after the time domain resource.
  • the repeated transmission includes at least one transmission of uplink transmission or at least one transmission of downlink transmission.
  • an embodiment of the present application provides a communication device that has the function of implementing the method described in the first aspect.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • an embodiment of the present application provides a communication device, which includes a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver are coupled, and it is characterized in that:
  • the memory is used to store instructions
  • the processor is configured to determine a target time domain resource for repeated transmission according to a first time domain resource and a second time domain resource in the repeated transmission, where the first time domain resource is a time domain that cannot be occupied by the repeated transmission Resource, the second time domain resource is a time domain resource for initial repeated transmission, the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and the third time domain resource A fourth time domain resource other than that, where the target time domain resource includes the fourth time domain resource;
  • the transceiver is configured to transmit data on the target time domain resource of the repeated transmission.
  • an embodiment of the present application provides a computer storage medium, wherein the computer-readable storage medium stores a computer program or instruction, and when the program or instruction is executed by a processor, the processor executes The device activation method as described in the first aspect.
  • the embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in the first aspect of the application embodiment.
  • the computer program product may be a software installation package.
  • FIG. 1 is a schematic diagram of a scenario of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for determining time domain resources for data transmission according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another method for determining time domain resources for data transmission according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a first time domain resource provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another first time domain resource provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a time domain resource provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 15 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 17 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 18 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 19 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 20 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 21 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 22 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 23 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 24 is a schematic diagram of another time domain resource provided by an embodiment of the present application.
  • FIG. 25 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 26 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced long term evolution
  • NR New Radio
  • NR Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiMAX Wireless Local Area Networks
  • WLAN Wireless Fidelity
  • mobile communication systems will not only support traditional communication, but will also support, for example, device to device (D2D) communication, machine to machine (Machine to Machine, M2M) communication, and machine type communication ( Machine Type Communication, MTC), and vehicle to vehicle (V2V) communication, etc.
  • D2D device to device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V vehicle to vehicle
  • FIG. 1 is a schematic diagram of a communication system scenario applied in an embodiment of the present invention.
  • the communication system includes a network device 110 and at least one terminal device 120 that communicates with the network device 110.
  • the network device 110 is a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • CRAN Cloud Radio Access Network
  • the network equipment can
  • terminal equipment used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal” or a "mobile terminal".
  • Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Figure 1 exemplarily shows a network device and a terminal device.
  • the communication system may include multiple network devices and each network device may communicate with one or more terminal devices. Not limited.
  • the devices with communication functions in the network/system in the embodiments of the present application may be called communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with communication functions, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.
  • the reliability of data transmission can be improved through repeated data transmission.
  • repeatedly transmitted data needs to be transmitted on continuous time domain resources. For example, assuming that the network device configures the length of the time domain resource required for each repeated transmission to be 3 symbols, and the number of repetitions of the repeated transmission is 3, then according to the method of the prior art, the terminal device or the network device needs 9 consecutive symbols to use For repeated transmission of data.
  • the existing communication system supports flexible time slot configuration and the transmission of other important system information, it is difficult to find continuous time domain resources for repeated data transmission in the communication system, which will increase the network equipment 110 and the terminal equipment 120. The delay between repeated data transmissions.
  • This application provides a method and related products for determining the time domain resource for data transmission.
  • the target time domain resource for the repeated transmission is determined, and the first time domain resource is The time domain resource that cannot be occupied by the repeated transmission, the second time domain resource is the time domain resource of the initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource , And a fourth time domain resource other than the third time domain resource, the target time domain resource includes the fourth time domain resource, for example, the second time domain resource is the first symbol to the first symbol of the tenth slot Ten symbols, the first slot resource is the third symbol to the fifth symbol of the 10th slot, then the third slot resource overlapping the first slot resource in the second time domain resource can be the 10th slot resource The third symbol to the fifth symbol of the slot, the fourth time domain resource can be the first symbol, the second symbol, and the sixth symbol to the tenth symbol of the tenth slot, and then the fourth symbol can be in
  • the target time domain resource cannot be earlier than the second time domain resource, but can be later than the second time domain resource.
  • the target time domain resource cannot be earlier than the second time domain resource. It can be understood as: the first symbol in the target time domain resource is the same as the first symbol in the second time domain resource, or the first symbol in the target time domain resource The symbols are after the first symbol in the second time domain resource.
  • the target time domain resource can be later than the second time domain resource, which can be understood as: the last symbol in the target time domain resource can be before the last symbol in the second time domain resource, or the last symbol in the target time domain resource Same as the last symbol in the second time domain resource. Or the last symbol in the target time domain resource is after the last symbol in the second time domain resource.
  • the terminal device can be based on the first time domain resource in the repeated transmission And the second time domain resource, determine the target time domain resource for repeated transmission, and send data on the target time domain resource for repeated transmission.
  • the network device may determine the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, and receive data on the target time domain resource of the repeated transmission.
  • the network device can be based on the first time domain resource in the repeated transmission And the second time domain resource, determine the target time domain resource for repeated transmission, and send data on the target time domain resource for repeated transmission.
  • the terminal device may determine the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, and receive data on the target time domain resource of the repeated transmission.
  • FIG. 2 is a schematic flowchart of a method for determining time domain resources for data transmission according to an embodiment of the present invention. The method shown includes some or All:
  • the terminal device determines the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission.
  • the repeated transmission may include at least one transmission of uplink transmission or at least one transmission of downlink transmission.
  • the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, that is, the repeated transmission can only transmit data on time domain resources other than the first time domain resource.
  • the method for determining the first time domain resource may include any of the following:
  • the first time domain resource may be determined by the terminal device according to the time domain resource indication information, and the time domain resource indication information may be sent by the network device to the terminal device. Subsequent embodiments will introduce in detail the method for determining the first time domain resource.
  • the time domain resource indication information includes first information and/or second information.
  • the first information includes the time domain resource information that cannot be occupied by the repeated transmission.
  • the second information includes slot format indicator (SFI), and the SFI includes semi-static SFI or dynamic SFI.
  • the first time domain resource is configured by the network device to the terminal device, the first time domain resource is determined by the network device according to the time domain resource indication information, and the network device determines the first time domain resource according to the time domain resource indication information It is the same as the manner in which the terminal device determines the first time domain resource according to the time domain resource indication information.
  • the network device may send a DL grant to the terminal device, where the DL grant includes the first field, and the first field includes the first time domain resource.
  • the network device sends a DL grant to the terminal device, where the DL grant includes a first field, the first field includes an index value, and the index value indicates the first time domain resource.
  • the second time domain resource is a time domain resource for initial repeated transmission
  • the time domain resource for initial repeated transmission is a continuous time domain resource.
  • the method for determining the second time domain resource may include any of the following:
  • the second time domain resource is determined by the terminal device according to the time domain resource of the first transmission in the repeated transmission, the number of repetitions of the repeated transmission, and the TRP switching interval between any two adjacent repeated transmissions . For example, assuming that the time domain resources of the first transmission in the repeated transmission are the first symbol (ie symbol 0) and the second symbol (ie symbol 1) of the 10th slot, the number of repetitions of the repeated transmission is 2, any The TRP switching interval between two adjacent repeated transmissions is 2, so the second time domain resource is the first symbol to the sixth symbol of the tenth slot.
  • the second time domain resource is the length of the time domain resource required for each repeated transmission according to the start time of the first transmission in the repeated transmission by the terminal device, and the amount of time between any two adjacent repeated transmissions. Determined by the TRP switching interval. For example, suppose that the start time of the first transmission in repeated transmission is the first symbol of the 10th slot, and the length of time domain resources required for each repeated transmission is 3. Between any two adjacent repeated transmissions If the TRP switching interval is 2, then the time domain resource of the first transmission in the repeated transmission is the first symbol to the third symbol of the 10th slot. If the number of repetitions of the repeated transmission is 2, then the second time domain The resources are the first symbol to the eighth symbol of the tenth slot.
  • each transmission/reception point corresponds to a transmission configuration indicator (Transmission Configuration Indicator, TCI) state (TCI state) or corresponds to a high-level configuration index value (index), for example
  • TCI Transmission Configuration Indicator
  • index high-level configuration index value
  • the upper layer configures an index for each control resource set (Control-resource Set, coreset), and different indexes correspond to different TRPs.
  • the method for determining the time domain resource for the first transmission in the repeated transmission may include any of the following:
  • Downlink grant may indicate the time domain resource of the first transmission in the repeated transmission, and the DL grant may be sent by the network device to the terminal device.
  • DL grant indicates that the time domain resources of the first transmission in the repeated transmission are the first symbol (ie, symbol 0) and the second symbol (ie, symbol 1) of the 10th slot.
  • the time domain resource of the first transmission in the repeated transmission may be determined according to the start time of the first transmission in the repeated transmission and the length of the time domain resource required for each repeated transmission.
  • the start time of the first transmission in the repeated transmission may be configured by the network device, that is, the time slot to which the time domain resource of the first transmission in the repeated transmission belongs, and the time of the first transmission in the time slot.
  • the length of time domain resources required for each repeated transmission can be configured by the network device, that is, the number of symbols that can be occupied by each repeated transmission.
  • the start symbol of the first transmission in the repeated transmission is the first symbol of the 10th slot
  • the length of the time domain resource required for each repeated transmission is 2, then the terminal device can determine the first symbol in the repeated transmission.
  • the transmitted time domain resources are the first symbol and the second symbol of the 10th slot.
  • the number of repetitions of repeated transmission may be configured by the network device.
  • a network device sends a DL grant to a terminal device.
  • the DL grant includes a first field, and the first field includes the number of repetitions of repeated transmission. For example, if the value of the first field is "2", the terminal device can determine the number of repeated transmissions. The number of repetitions is 2, that is, the terminal device can repeat the data transmission twice.
  • a network device sends a DL grant to a terminal device.
  • the DL grant includes a first field, and the first field includes an index value.
  • the index value indicates the number of repetitions of repeated transmission. For example, the index value is "010", and the terminal device can determine The number of repetitions of repeated transmission is 2, that is, the terminal device can retransmit data twice.
  • the target time domain resource is used for the foregoing repeated transmission, and the target time domain resource may include the fourth time domain resource but not the third time domain resource, that is, the terminal device may abandon the repeated transmission of data in the third time domain resource.
  • the target time domain resource can be in one time slot, it can also span time slots, or it can be in multiple time slots. In a scenario that spans time slots or multiple time slots, the target time slot resource may be on multiple consecutive time slots or multiple non-continuous time slots, which is not limited in the embodiment of the present application.
  • the target time domain resource determined by the terminal device may be symbol 1, symbol 2, and symbol 6.
  • the target time domain resource determined by the terminal device may be symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.
  • the terminal device transmits data on the target time domain resource that is repeatedly transmitted.
  • the terminal device may send data on the target time domain resource of the repeated transmission.
  • the terminal device may receive data on the target time domain resource of the repeated transmission. Subsequent embodiments will introduce in detail the method of transmitting data on the target time domain resource that is repeatedly transmitted.
  • the terminal device repeatedly transmits data on the target time domain resource after determining the target time domain resource. As shown in FIG. 4, assuming that the target time domain resources are symbol 1, symbol 2, and symbol 6, then the terminal device can receive or send data on symbol 1, symbol 2, and symbol 6. Assuming that the target time domain resources are symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12, the terminal device can receive or transmit data on symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.
  • the target time domain resource of the repeated transmission is determined according to the first time domain resource and the second time domain resource in the repeated transmission.
  • the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission.
  • the second time domain resource is a time domain resource for initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource.
  • Time domain resource, the target time domain resource includes the fourth time domain resource, and data is transmitted on the repeatedly transmitted target time domain resource, which reduces the length of continuous time domain resources required for repeated data transmission, thereby reducing Delay due to repeated transmission of data.
  • FIG. 3 is a schematic flowchart of another method for determining time-domain resources for data transmission according to an embodiment of the present invention.
  • the method shown includes some of the following Or all:
  • the network device determines the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission.
  • the repeated transmission may include at least one transmission of uplink transmission or at least one transmission of downlink transmission.
  • the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission, that is, the repeated transmission can only transmit data on time domain resources other than the first time domain resource.
  • the first time domain resource may be determined by the network device according to the time domain resource indication information.
  • the time domain resource indication information includes first information and/or second information. Subsequent embodiments will introduce in detail the method for determining the first time domain resource.
  • the second time domain resource is a time domain resource for initial repeated transmission
  • the time domain resource for initial repeated transmission is a continuous time domain resource.
  • the method for determining the second time domain resource may include any of the following:
  • the second time domain resource is determined by the network device according to the time domain resource of the first transmission in the repeated transmission and the number of repetitions of the repeated transmission. For example, assuming that the time domain resources of the first transmission in the repeated transmission are the first symbol and the second symbol of the 10th slot, and the number of repetitions of the repeated transmission is 2, then the second time domain resource is the 10th slot. From the first symbol to the fourth symbol.
  • the second time domain resource is the length of the time domain resource required for each repeated transmission by the network device according to the start time of the first transmission in the repeated transmission, and the amount of time between any two adjacent repeated transmissions. Determined by the TRP switching interval. For example, suppose that the start time of the first transmission in repeated transmission is the first symbol of the 10th slot, and the length of time domain resources required for each repeated transmission is 3. Between any two adjacent repeated transmissions If the TRP switching interval is 2, then the time domain resource of the first transmission in the repeated transmission is the first symbol to the third symbol of the 10th slot. If the number of repetitions of the repeated transmission is 2, then the second time domain The resources are the first symbol to the eighth symbol of the tenth slot.
  • the time domain resource of the first transmission in the repeated transmission can be determined according to the start time of the first transmission in the repeated transmission and the length of the time domain resource required for each repeated transmission.
  • the start symbol of the first transmission in the repeated transmission is the first symbol of the 10th slot
  • the length of the time domain resource required for each repeated transmission is 2, then the terminal device can determine the first symbol in the repeated transmission.
  • the transmitted time domain resources are the first symbol and the second symbol of the 10th slot.
  • the target time domain resource is used for the foregoing repeated transmission, and the target time domain resource may include the fourth time domain resource but not the third time domain resource, that is, the network device may abandon the repeated transmission of data in the third time domain resource.
  • the target time domain resource can be in one time slot, it can also span time slots, or it can be in multiple time slots. In a scenario that spans time slots or multiple time slots, the target time slot resource may be on multiple consecutive time slots or multiple non-continuous time slots, which is not limited in the embodiment of the present application.
  • the target time domain resource determined by the network device may be symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.
  • the network device transmits data on the target time domain resource that is repeatedly transmitted.
  • the network device may receive data on the target time domain resource of the repeated transmission.
  • the network device may send data on the target time domain resource of the repeated transmission. Subsequent embodiments will introduce in detail the method of transmitting data on the target time domain resource that is repeatedly transmitted.
  • the network device repeatedly transmits data on the target time domain resource after determining the target time domain resource. As shown in FIG. 4, assuming that the target time domain resources are symbol 1, symbol 2, and symbol 6, then the network device can receive or send data on symbol 1, symbol 2, and symbol 6. Assuming that the target time domain resources are symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12, the network device can receive or transmit data on symbol 1, symbol 2, symbol 6 to symbol 8, and symbol 12.
  • the target time domain resource of the repeated transmission is determined according to the first time domain resource and the second time domain resource in the repeated transmission.
  • the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission.
  • the second time domain resource is a time domain resource for initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and a fourth time domain resource other than the third time domain resource.
  • Time domain resource, the target time domain resource includes the fourth time domain resource, and data is transmitted on the repeatedly transmitted target time domain resource, which reduces the length of continuous time domain resources required for repeated data transmission, thereby reducing Delay due to repeated transmission of data.
  • the unoccupiable time domain resource is determined according to the first information, and the above determination is
  • the non-occupiable time domain resources are described in detail as the first time domain resource solution.
  • the first information includes the first time domain resource.
  • the network device configures multiple symbols in a certain time slot as unoccupiable time domain resources, then the network device can generate first information, the first information including the slot identifier of the above-mentioned time slot and the symbol identification of the multiple symbols that are not occupied. As shown in FIG. 4, the first information includes symbol 3 to symbol 5, and symbol identification of symbol 9 to symbol 11. Then, it can be determined that the first time domain resource includes symbol 3 to symbol 5, and symbol 9 to symbol 11.
  • the first information is used to indicate the first time domain resource.
  • the first information may be signal configuration information.
  • the signal configuration information is signal configuration information about at least one of the following signals.
  • the at least one signal is: Physical Random Access Channel (PRACH), Channel Sounding Reference Signal (Sounding Reference Signal). Reference Signal (SRS), Synchronization Signal Block (SSB), and Positioning Reference Signal (PRS). Since the above-mentioned signal has a higher priority relative to the repeatedly transmitted data, after receiving the above-mentioned signal configuration information, the terminal device may determine the fifth time domain resource occupied by the signal indicated by the above-mentioned signal configuration information as the first time domain resource.
  • PRACH Physical Random Access Channel
  • SRS Channel Sounding Reference Signal
  • SSB Synchronization Signal Block
  • PRS Positioning Reference Signal
  • symbol 2 can only be used to transmit SSB, not PUSCH, that is Say, symbol 2 is the first time domain resource.
  • the first information may be transmitted through physical layer signaling or higher layer signaling.
  • the second time domain resource includes the fifth time domain resource
  • the frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission is the same as the frequency domain resource occupied by the signal indicated by the signal configuration information .
  • the signal indicated by the signal configuration information is SSB
  • the time domain resource occupied by the SSB is symbol 2
  • the PUSCH used for repeated transmission also occupies symbol 2
  • the frequency domain resources used by the SSB are the same as the frequency domain resources used by the PUSCH
  • Symbol 2 can only be used to transmit SSB and cannot be used to transmit PUSCH, that is, symbol 2 is the first time domain resource.
  • the symbol 2 can be used to transmit SSB and PUSCH, that is, symbol 2 is not the first time domain resource.
  • the SSB configuration information indicates that the time domain resources occupied by the SSB are symbols 3 to 5, and symbols 9 to symbols in FIG. 11. Then, symbols 3 to 5, and symbols 9 to 11 can be determined as the first time domain resource.
  • the unoccupiable time domain resource is determined according to the second information, and the above determination is
  • the non-occupiable time domain resources are described in detail as the first time domain resource solution.
  • the second information is SFI, and SFI is used to indicate uplink resources, downlink resources, and flexible resources in the time slot.
  • SFI can be configured semi-statically through high-level signaling or dynamically configured through PDCCH.
  • the first time domain resource includes semi-statically configured uplink resources, that is, downlink resources and flexible resources are time domain resources that can be occupied; or A time domain resource includes the semi-statically configured uplink resource and the nth symbol of the flexible resource and the part after the nth symbol, that is, the part before the nth symbol of the downlink resource and the flexible resource is the time domain resource that can be occupied; or , The first time domain resource includes semi-statically configured uplink resources and all flexible resources, that is, the downlink resources are time domain resources that can be occupied. As shown in FIG. 5, the SFI is configured semi-statically, and repeated transmissions are multiple transmissions of the PUSCH, and the first time domain resource is one of Case 1 to Case 3 shown in FIG. 5.
  • the terminal device can determine the first time domain resource according to the dynamic SFI.
  • the first time domain resource includes uplink resources configured by dynamic SFI, that is, downlink resources and flexible resources are time domain resources that can be occupied; or, the first time domain resource includes uplink resources configured by dynamic SFI and the nth of flexible resources. Symbols and the part after the nth symbol, that is, downlink resources and flexible resources.
  • the part before the nth symbol is the time domain resource that can be occupied; or, the first time domain resource includes the uplink resource of the dynamic SFI configuration and all the flexible resources , That is, the downlink resource is the time domain resource that can be occupied.
  • the SFI is dynamically configured through the PDCCH, and repeated transmissions are usually multiple transmissions of the PUSCH, and the first time domain resource is one of Case 1 to Case 3 shown in FIG. 6.
  • the first time domain resource includes semi-statically configured downlink resources, that is, uplink resources and flexible resources are time domain resources that can be occupied; or A time domain resource includes the semi-statically configured downlink resource and the part before the nth symbol of the flexible resource, that is, the nth symbol of the uplink resource and the flexible resource and the part after the nth symbol are the time domain resources that can be occupied; or ,
  • the first time domain resources include semi-statically configured downlink resources and all flexible resources, that is, the uplink resources are time domain resources that can be occupied. As shown in FIG. 7, SFI is configured semi-statically, and repeated transmissions are multiple transmissions of PDSCH, and the first time domain resource is one of Case 1 to Case 3 shown in FIG. 7.
  • the terminal device can determine the first time domain resource according to the dynamic SFI.
  • the first time domain resource includes downlink resources configured by dynamic SFI, that is, uplink resources and flexible resources are time domain resources that can be occupied; or, the first resource includes downlink resources configured by dynamic SFI and flexible resources before the nth symbol The part of the uplink resource and the nth symbol of the flexible resource and the part after the nth symbol are the time domain resources that can be occupied; or, the first time domain resource includes the downlink resource of the dynamic SFI configuration and all the flexible resources, namely Uplink resources are time domain resources that can be occupied.
  • the SFI is dynamically configured through the PDCCH, and repeated transmission is usually multiple transmissions of the PDSCH, and the first time domain resource is one of Case 1 to Case 3 shown in FIG. 8.
  • the embodiment of the present invention specifically describes the solution for determining the first time domain resource when the time domain resource indication information includes the first information and the second information.
  • the unoccupiable time domain resource may be determined according to the first information, and the determined unoccupiable time domain resource may be used as the fifth time domain resource. And determine the unoccupiable time domain resource according to the second information, and use the determined unoccupiable time domain resource as the sixth time domain resource, where the first time domain resource is a collection of the fifth time domain resource and the sixth time domain resource .
  • the manner of determining the unoccupiable time domain resources according to the first information may refer to the description of the manner of determining the unoccupiable time domain resources according to the first information in the foregoing embodiment, and details are not described herein again.
  • the manner for the terminal device to determine the unoccupiable time domain resources according to the second information can refer to the description of the manner of determining the unoccupiable time domain resources according to the second information in the foregoing embodiment, which is not repeated here.
  • the symbol 2 is determined as the fifth time domain resource according to the first information
  • the symbol 7 and the symbol 8 are determined as the sixth time domain resource according to the second information. Since the first time domain resource is a collection of the fifth time domain resource and the sixth time domain resource, the terminal device can finally determine the symbol 3, the symbol 7 and the symbol 8 as the first time domain resource.
  • the first time-domain resource is the fifth time-domain resource
  • the sixth time-domain resource and the TRP switching interval between any two adjacent repeated transmissions Collection As shown in FIG. 10, symbol 8 is determined as the fifth time domain resource according to the first information, symbol 7 and symbol 8 are determined as the sixth time domain resource according to the second information, and the TRP switching interval is symbol 3 and symbol 6. Since the first time domain resource is the fifth time domain resource, the sixth time domain resource and the collection of the TRP switching interval between any two adjacent repeated transmissions, finally symbol 3 can be determined, and symbols 6 to 8 are the first time. Domain resources.
  • the embodiment of the present invention specifically describes a solution for transmitting data on the target time-domain resource of repeated transmission.
  • the network device may configure the terminal device: the time domain resource of each repeated transmission in the repeated transmission is a continuous time domain resource.
  • the length of the time domain resource for each repeated transmission is the same, and the length of consecutive time domain resources in the target time domain resource is greater than or equal to the length of the time domain resource for each repeated transmission.
  • the network device configures the length of the time domain resource required for each repeated transmission to be 3, and the number of repetitions for the repeated transmission to be 2.
  • the time domain resources that can be occupied are symbol 1, symbol 2, symbol 5 to symbol 8, and symbol 10 to symbol 12. Since symbol 1 and symbol 2 are continuous time-domain resources that can be occupied, the length of the time-domain resource is 2, and the length of the time-domain resource is less than the length of the time-domain resource required for each repeated transmission, that is, the first in repeated transmission.
  • symbols 5 to 8 are continuous time domain resources that can be occupied.
  • the length of the time domain resource is 4, and the length of the time domain resource is greater than the length of the time domain resource required for each repeated transmission, then the time domain resource
  • the middle symbol 5 to symbol 7 are determined as part of the target time domain resource for the first repeated transmission.
  • the remaining symbol 8 is a time domain resource that can be occupied.
  • the length of the time domain resource is 1, and the length of the time domain resource is less than the length of the time domain resource required for each repeated transmission, then the time domain resource will not be used for repeated transmission .
  • symbols 10 to 12 are continuous time domain resources that can be occupied.
  • the length of the time domain resource is 3, and the length of the time domain resource is equal to the length of the time domain resource required for each repeated transmission, then the time domain resource
  • the middle symbol 10 to the symbol 12 are determined as a part of the target time domain resource for the second repeated transmission.
  • symbol 5 to symbol 7 and symbol 10 to symbol 12 are determined as the target time domain resource, and the data that needs to be repeatedly transmitted with a length of 3 and a repetition number of 2 is transmitted on the target time domain resource.
  • the transmission is repeated from the first to the n-1th time.
  • the data is respectively transmitted on the time domain resources of, n is a positive integer, n is greater than 0 and less than or equal to the number of repetitions.
  • the length of the time domain resource for the nth repeated transmission in the repeated transmission is less than the length of the time domain resource required for each repeated transmission, that is, the time domain resource for the nth repeated transmission exceeds the time domain length limit boundary, then The data that needs to be repeatedly transmitted for the nth time and after the nth time is no longer transmitted.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 0, the time domain length a required for one repeated transmission is 4, the number of repeated transmissions is 3, and the limit is the symbol 13. According to the above method, it is determined that the target time domain resource for the first repeated transmission is symbol 5 to symbol 8. At this time, the available time domain resources that did not meet the condition before the symbol 13 may be determined as the target time domain resources for the second repeated transmission. The data is no longer repeated the second and third transmissions. That is, the data that needs to be transmitted is repeatedly transmitted only once at symbol 5 to symbol 8. It can be seen that the method of this embodiment can realize the repeated transmission of part of the data that needs to be repeatedly transmitted without increasing the time delay, while also ensuring the integrity of each repeated transmission.
  • the symbol x in the figure represents the first time domain resource. If the starting symbol is the symbol 0 in time slot 1, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 3. , The restriction boundary is symbol 13 in slot 1. Then, according to the above method, the target time domain resource for the first repeated transmission is determined to be symbol 5 to symbol 8 in time slot 1. At this time, the available time domain resources that do not meet the condition before the symbol 13 of the time slot 1 can be determined as the target time domain resources for the second repeated transmission.
  • the extended time slot 2 is added after the time slot 1, and symbols 0 to 7 of the subsequent time slot 2 are determined as the target time domain resources for the second repetitive transmission and the third repetitive transmission. That is, the transmission length 4 of symbol 5 to symbol 8 of time slot 1 and symbol 0 to symbol 7 of time slot 2 is determined as the target time domain resource, and data that needs to be repeatedly transmitted is transmitted on the target time domain resource. It can be seen that the method of this embodiment can reduce the overhead of continuous time domain resources under the condition of ensuring the integrity of the repeated transmission of data, thereby reducing the time delay, and at the same time ensuring the integrity of each repeated transmission.
  • the embodiment of the present invention specifically describes another scheme for the terminal device to transmit data on the target time domain resource for repeated transmission.
  • the network device configures the terminal device: the time domain resource of at least one repeated transmission in the repeated transmission is a non-continuous time domain resource.
  • the length c1 of the time domain resources that can be currently occupied is less than the time domain length a required for one repeated transmission, and the terminal device splits one repeated transmission data into two parts of length c1 and length a-c1, The part of the length c1 is repeatedly transmitted on the occupied time domain resource of length c1, and the part of the length of a-c1 is repeatedly transmitted in the subsequent occupied time domain resource.
  • the repeated transmission data of the length a-c1 is split into two parts c2 and a-c1-c2.
  • the part of the domain resource with a transmission length of c2 repeatedly transmits data
  • the part of the subsequent occupied time domain resource transmits the part of the data with a length of a-c1-c2 repeatedly.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 1, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 2. It can be seen from Figure 13 that the time domain resources that can be occupied are symbol 1 to symbol 6 and symbol 8 to symbol 12, that is, both c1 and c2 are 6. Therefore, the terminal device performs the first repeated transmission at symbol 1 to symbol 4. At this time, the terminal device can perform the second repeated transmission at symbol 5, symbol 6, symbol 8, and symbol 9. The terminal device repeats the first part of the data at symbol 5 and symbol 6, and repeats the data transmission at symbol 8 and symbol 9. The second part.
  • the first segment can occupy the remaining symbols 5 and 6 of time domain resources, and the length is 2 less than a.
  • the terminal device splits the data of the second repeated transmission into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 5 and symbol 6. In the subsequent available resources, that is, symbol 8 and symbol 9 transmit the second part of repeated transmission data with a length of 2.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 0, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 2. It can be seen from Figure 14 that the available time domain resources are symbol 1, symbol 2, symbol 4, and symbol 6 to symbol 12, that is, c1 is 2, c2 is 1, and c3 is 7. Since c1 is smaller than a, the terminal device splits the first repeated transmission data into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 1 and symbol 2.
  • the terminal device splits the second part of the repeated transmission data into two parts of length 1, and transmits the first part of the repeated transmission data of length 1 at symbol 4.
  • the symbol 6 transmits the second part of the repeated transmission data with a length of 1. That is, the terminal device transmits the data for the first repeated transmission at symbol 1, symbol 2, symbol 4, and symbol 6, and transmits the data for the second repeated transmission at symbol 7 to symbol 10.
  • the terminal device if the nth repeated transmission exceeds the time domain length limit boundary, the terminal device only transmits the first part of the nth repeated transmission data, and does not transmit the remaining second part of the nth repeated transmission data and The data to be transmitted after the nth time.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 3, the time domain length a required for one repeated transmission is 4, the number of repeated transmissions is 3, and the limit is the symbol 13. Then, the terminal device determines that the target time domain resource for the first repeated transmission is symbol 5 to symbol 8 according to the foregoing method.
  • the terminal device splits the data of the second repeated transmission into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 11 and symbol 12. .
  • no time domain resources can be occupied before the symbol 13.
  • the terminal device no longer transmits the second part of the data repeatedly transmitted for the second time and the data repeatedly transmitted for the third time. That is, the terminal device only performs one repetitive transmission of the data that needs to be transmitted at symbols 5 to 8, and transmits the first part of the data of length 2 repetitively at symbols 11 and 12 for the second time. It can be seen that the method of this embodiment can maximize the use of the available time domain resources in the time slot, and realize the repeated transmission of part of the data that needs to be repeatedly transmitted without increasing the time delay.
  • the terminal device extends the time domain resource after the boundary and continues to transmit the remaining second part of the nth repeated transmission data and the data that needs to be transmitted after the nth.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 3 in slot 1, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 3. , The restriction boundary is symbol 13 in slot 1. Then, the terminal device determines that the target time domain resource for the first repeated transmission is symbol 5 to symbol 8 in time slot 1 according to the above method.
  • the terminal device splits the data of the second repeated transmission into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 11 and symbol 12. .
  • the terminal equipment adds the extended time slot 2 after the time slot 1, and transmits the second part of the subsequent second repeated transmission and the third repeated transmission in the symbol 0 to the symbol 5 of the time slot 2. That is, the terminal device transmits data that needs to be repeatedly transmitted with a length of 4 and a repetition number of 3 through symbols 5 to 8, symbol 11, symbol 12, and symbols 0 to 5 of time slot 2. It can be seen that the method of this embodiment can maximize the use of the occupiable time domain resources existing in the time slot under the condition of ensuring the integrity of repeated transmission data, reduce the expenditure of continuous time domain resources, and thereby reduce the time delay.
  • the current available time domain resource length c1 is less than the time domain length a required for the nth repeated transmission, and the terminal device splits the nth repeated transmission data into two lengths c1 and a-c1. Part, the part of length c1 is repeatedly transmitted on the occupied time domain resource of length c1, and the part of length a-c1 remaining in the nth repeated transmission is no longer transmitted. The n+1th repetitive transmission is performed in the subsequent occupied time domain resources.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 0, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 3. It can be seen that the time domain resources that can be occupied are symbol 1, symbol 2, symbol 4, and symbol 6 to symbol 12, that is, c1 is 2, c2 is 1, and c3 is 7. Since c1 is less than a, the terminal device splits the first repeated transmission data into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 1 and symbol 2, and does not transmit the remaining first part. Two parts of repeated transmission data with a length of 2.
  • the terminal device splits the data of the second repeated transmission into a first part of length 1 and a second part of length 3, and transmits the first part of repeated transmission data of length 1 in symbol 4, and no longer transmits The remaining second part is repeated transmission data with a length of 3. Since c3 is greater than a, the terminal device performs a third repeated transmission on symbols 6 to 9. That is, the terminal device transmits the repetitive transmission data of length 2 in the first part of the first repetitive transmission at symbol 1, symbol 2, and transmits the repetitive transmission data of length 1 in the first part of the second repetitive transmission at symbol 4, in symbols 6 ⁇ Symbol 9 transmits all the data transmitted for the third time.
  • the terminal device if the nth repeated transmission exceeds the time domain length limit boundary, the terminal device only transmits the first part of the nth repeated transmission data, and does not transmit the remaining second part of the nth repeated transmission data and The data to be transmitted after the nth time.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 4, the time domain length a required for one repeated transmission is 4, the number of repeated transmissions is 3, and the limit is the symbol 13. Since the length of symbol 6 to symbol 8 is 3 less than a, the terminal device splits the first repeated transmission data into a first part of length 3 and a second part of length 1, and transmits the length of the first part in symbol 6 to symbol 8.
  • the repeated transmission data is 3, and the remaining second part of the repeated transmission data with a length of 1 is no longer transmitted. Since the length of symbol 11 and symbol 12 is 2 less than a, the terminal device splits the data of the second repeated transmission into two parts of length 2, and transmits the first part of repeated transmission data of length 2 in symbol 11 and symbol 12. , The remaining second part of the repeated transmission data with a length of 2 is no longer transmitted. At this time, there are no time domain resources that can be occupied by symbols 4 to 13. The terminal device no longer transmits the data repeatedly transmitted for the third time.
  • the terminal device only transmits the first part of the repetitive transmission data with a length of 3 in the first repeated transmission at symbols 6 to 8, and transmits the first part of the retransmitted data with a length of 2 in the second repeated transmission at symbols 11 and 12. It can be seen that the method of this embodiment can maximize the use of the available time domain resources in the time slot, and realize the repeated transmission of part of the data that needs to be repeatedly transmitted without increasing the time delay.
  • the terminal device extends the time domain resource after the boundary and continues to transmit the remaining second part of the nth repeated transmission data and the data that needs to be transmitted after the nth.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 4 in slot 1, the time domain length a required for one repeated transmission is 4, and the number of repeated transmissions is 3. , The restriction boundary is symbol 13 in slot 1.
  • the terminal device transmits the first part of the repetitive transmission data of length 3 for the first repeated transmission at symbols 6 to 8, and transmits the repetition of the first part length of 2 for the second repeated transmission at symbols 11 and 12. transfer data. At this time, there are no available time domain resources for symbol 4 to symbol 13 in slot 1.
  • the terminal equipment adds the extended time slot 2 after the time slot 1, and transmits the data of the third repeated transmission in the symbol 0 to the symbol 3 of the time slot 2. That is, the terminal device transmits data that needs to be repeatedly transmitted with a length of 4 and a repetition number of 3 through symbols 6 to 8 of time slot 1, symbol 11, symbol 12, and symbols 0 to 3 of time slot 2. It can be seen that the method of this embodiment can maximize the use of the available time domain resources in the time slot, reduce the expenditure of continuous time domain resources, and thereby reduce the time delay.
  • the data length of one repeated transmission is m, and the number of repeated transmissions is n, then the data that needs to be repeatedly transmitted is transmitted on a continuous time domain resource of length m*n starting from the designated start symbol. If the first time domain resource exists in the continuous time domain resource with a length of m*n, the terminal device does not transmit data of the part where the symbol overlaps with the first time domain resource. As shown in Figure 20, the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 3, the time domain length a required for one repeated transmission is 2, and the number of repeated transmissions is 4, then the repeated transmission is Data is transmitted in symbol 3 to symbol 10.
  • the terminal device Since symbol 5, symbol 6, symbol 8 and symbol 9 are the first time domain resource, the terminal device does not transmit all the data corresponding to the first time domain resource symbol for the second retransmission, and the second part of the third retransmission Data and the first part of the data transmitted for the fourth time.
  • the terminal device if the nth repeated transmission exceeds the time domain length limit boundary, the terminal device only transmits the first part of the nth repeated transmission data, and does not transmit the remaining second part of the nth repeated transmission data and The data to be transmitted after the nth time.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 9, the time domain length a required for one repeated transmission is 2, the number of repeated transmissions is 4, and the limit is the symbol 13, the repeatedly transmitted data is transmitted in symbol 9 to symbol 13. Since the symbol 9 and the symbol 12 are the first time domain resources, the terminal device does not transmit the first part of the first repeated transmission and the second part of the second repeated transmission corresponding to the first time domain resource symbol.
  • the terminal device Since the second part of the third repeated transmission and the fourth repeated transmission exceed the boundary symbol 13, the terminal device does not transmit the second part of the third repeated transmission and the data of the fourth repeated transmission. That is, the terminal device transmits the second part of data for the first repeated transmission at symbol 10, transmits the first part of data for the second repeated transmission at symbol 11, and transmits the first part of data for the third repeated transmission at symbol 13. It can be seen that the method of this embodiment can maximize the use of the available time domain resources in the time slot, and realize the repeated transmission of part of the data that needs to be repeatedly transmitted without increasing the time delay.
  • the terminal device extends the time domain resource after the boundary and continues to transmit the remaining second part of the nth repeated transmission data and the data that needs to be transmitted after the nth.
  • the symbol x in the figure represents the first time domain resource. If the start symbol is symbol 9, the time domain length a required for one repeated transmission is 2, the number of repeated transmissions is 4, and the limit is time At symbol 13 in slot 1, the repeatedly transmitted data is transmitted in symbol 9 to symbol 13 in slot 1. Since the symbol 9 and the symbol 12 are the first time domain resources, the terminal device does not transmit the first part of the first repeated transmission and the second part of the second repeated transmission corresponding to the first time domain resource symbol.
  • the terminal equipment adds the extended time slot 2 after the time slot 1, and the symbol 0 to the symbol 2 in the time slot 2 are repeated for the third time.
  • the second part of the transmission and the fourth repeated transmission of data are transmitted. That is, the terminal equipment transmits the second part of the first repeated transmission at symbol 10 of time slot 1, and transmits the first part of the second repeated transmission at symbol 11 of time slot 1, and transmits the third part of data at symbol 13 of time slot 1.
  • the first part of the data repeatedly transmitted for the first time, the second part of the third repeated transmission and the fourth repeated transmission of data are transmitted in the symbol 0 to the symbol 2 of the time slot 2. It can be seen that the method of this embodiment can maximize the use of the available time domain resources in the time slot, reduce the expenditure of continuous time domain resources, and thereby reduce the time delay.
  • the repeated transmission is continuous for each repeated transmission. If the nth repeated transmission exceeds the time domain length limit boundary, the time domain resources are extended after the boundary to continue to transmit the nth repeated transmission data. Assuming that the network device configures the terminal device with a start symbol of 4, the length of time domain resources required for each repeated transmission is 2, the gap is 1, the number of repetitions of repeated transmission is 3, and the limit boundary is the symbol 13 in time slot 1.
  • the domain resource indication information includes first information, and the first information is signal configuration information, and the signal configuration information includes SSB.
  • the SSB configuration information indicates that the time domain resources occupied by the SSB are symbol 3 to symbol 5 and symbol 9 to symbol 11 in slot 1, so the terminal device can determine symbol 3 to symbol 5 and symbol 9 to symbol 11 in slot 1 as the first A time domain resource. Therefore, after the start symbol 4 in time slot 1, the available time domain resources are symbols 6 to 8, symbol 12 and symbol 13 in time slot 1. Since symbols 6 to 8 in time slot 1 are continuous time domain resources that can be occupied, the length of the time domain resource is 3, and the length of the time domain resource is greater than the length of the time domain resource required for each repeated transmission, then the Symbols 5 to 7 in the time domain resources are determined as part of the target time domain resources for the first repeated transmission, and the symbol 8 is gap.
  • symbols 12 and 13 in time slot 1 are continuous time domain resources that can be occupied, the length of the time domain resource is 2, and the length of the time domain resource is equal to the length of the time domain resource required for each repeated transmission, then the The symbol 12 and the symbol 13 in the time domain resource are determined as a part of the target time domain resource for the second repeated transmission.
  • the terminal equipment joins the extended time slot 2 after the time slot 1, and the symbols 0 to 13 in the time slot 2 are continuous occupable time domain resources.
  • the symbol 0 in the time slot 2 is a gap, and the symbol 0 in the time slot 2 is a gap.
  • Symbol 1 and symbol 2 are determined as part of the target time domain resource for the third repeated transmission.
  • the repetitive transmission method is that the time domain resource of at least one retransmission in the repetitive transmission is a non-contiguous time domain resource. If the nth repetitive transmission exceeds the time domain length limit boundary, the terminal device only transmits the first The first part of the data is repeatedly transmitted n times, and the remaining second part of the nth repeated transmission data and the data that need to be transmitted after the nth time are no longer transmitted. Assuming that the network device configures the terminal device with a start symbol of 2, the length of time domain resources required for each repeated transmission is 3, the gap is 1, the number of repetitions of repeated transmission is 3, and the limit boundary is the symbol 13 in time slot 1.
  • the domain resource indication information includes first information and second information.
  • the fifth time domain resource indicated by the first information is symbol 1
  • the sixth time domain resource indicated by the second information is symbol 7 and symbol 8
  • the TRP switching interval between any two adjacent repeated transmissions is symbol 7 and symbol 13.
  • the first time domain resources are symbol 1, symbol 7, symbol 8, and symbol 13. It can be seen that starting from the start symbol, the time domain resources that can be occupied are symbol 2 to symbol 6 and symbol 9 to symbol 12. Since symbols 2 to 6 are continuous time-domain resources that can be occupied, the length of the time-domain resource is 5, and the length of the time-domain resource is greater than the length of the time-domain resource required for each repeated transmission, then the time-domain resource Symbol 2 to symbol 4 are determined as part of the target time domain resource for the first repeated transmission, and symbol 5 is gap.
  • the remaining symbol 6 is a time domain resource that can be occupied.
  • the length of the time domain resource is 1, and the length of the time domain resource is less than the length of the time domain resource required for each repeated transmission.
  • the terminal device divides the data of the second repeated transmission They are two parts of length 1 and length 2, and the first part of length 1 in the second repeated transmission of symbol 6 transmission. Since symbols 9 to 12 are continuous time domain resources that can be occupied, the length of the time domain resource is 4, and the length of the time domain resource is greater than the length of the time domain resource required for the second part of the second repeated transmission, then The symbol 9 and the symbol 10 in the time domain resource are determined as a part of the target time domain resource for transmitting the second part of length 2 in the second repeated transmission, and the symbol 11 is gap.
  • the remaining symbol 12 is a time domain resource that can be occupied.
  • the length of the time domain resource is 1, and the length of the time domain resource is less than the length of the time domain resource required for each repeated transmission.
  • the terminal device divides the data of the third repeated transmission into They are two parts of length 1 and length 2, and the first part of length 1 in the third repeated transmission of symbol 12 transmission. Since there are no available time domain resources among the start symbol 2 to the boundary symbol 13, the terminal device does not transmit the second part with a length of 2 for the third repetition.
  • any one of the foregoing repeated transmission manners and any one of the foregoing methods for determining the first time domain resource can be combined with each other, and the combined manner is not limited to the two examples illustrated in FIG. 23 and FIG. 24.
  • a terminal device or a network device includes a hardware structure and/or software module corresponding to each function.
  • 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 embodiment of the present application may divide the terminal device or the network device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be realized in the form of hardware or software program module. It should be noted that the division of units 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.
  • FIG. 25 shows a block diagram of a possible functional unit composition of the communication device involved in the foregoing embodiment.
  • the communication device may run in a terminal device or a network device.
  • the communication device includes:
  • the processing unit 501 is configured to determine the target time domain resource of the repeated transmission according to the first time domain resource and the second time domain resource in the repeated transmission, where the first time domain resource is a time domain resource that cannot be occupied by the repeated transmission ,
  • the second time domain resource is a time domain resource for initial repeated transmission, and the second time domain resource includes a third time domain resource overlapping with the first time domain resource, and other than the third time domain resource
  • the communication unit 502 is configured to transmit data on the target time domain resource of the repeated transmission.
  • the second time domain resource is determined according to the time domain resource of the first transmission in the repeated transmission, the number of repetitions of the repeated transmission, and the TRP switching interval between any two adjacent repeated transmissions. Determine; or the second time domain resource is based on the start time of the first transmission in the repeated transmission, the length of the time domain resource required for each repeated transmission, and the difference between any two adjacent repeated transmissions As determined by the handover interval, each TRP corresponds to a TCI state or corresponds to an index value configured by a higher layer.
  • the first time domain resource is determined according to time domain resource indication information
  • the time domain resource indication information includes first information and/or second information
  • the first information includes unavailable time domain resource information
  • the second information includes slot format information SFI.
  • the time domain resource indication information includes first information, and the first time domain resource is a time domain resource indicated by the first information.
  • the time domain resource indication information includes first information, the first information includes signal configuration information, and the first time domain resource is a fifth time domain resource occupied by the signal indicated by the signal configuration information .
  • the second time domain resource includes the fifth time domain resource, and the frequency domain resource corresponding to the fifth time domain resource in the initial repeated transmission and the frequency occupied by the signal indicated by the signal configuration information
  • the domain resources are the same.
  • the signal indicated by the signal configuration information includes at least one of the following: PRACH, SRS, SSB, and PRS.
  • the time domain resource indication information includes second information, and the second information includes uplink resources, downlink resources, and flexible resources;
  • the first time domain resource is the downlink resource, or the first part of the downlink resource and the flexible resource, or the downlink resource and the All flexible resources;
  • the first time domain resource is the uplink resource, or the uplink resource and the first part of the flexible resource, or the uplink resource and the All of the flexible resources.
  • the time domain resource indication information is dynamically configured through the PDCCH, or semi-statically configured through higher layer signaling, or pre-configured.
  • the first information is transmitted through physical layer signaling or higher layer signaling.
  • the time domain resource of each repeated transmission in the repeated transmission is a continuous time domain resource.
  • the length of the time domain resource for each repeated transmission is the same, and the length of the continuous time domain resources in the target time domain resource is greater than or equal to the length of the time domain resource for each repeated transmission.
  • the length of the time domain resource for each repeated transmission is different, the starting resource in the target time domain resource is determined according to the rule of continuous resource mapping, and the length of the target time domain resource is less than every The product of the length of time domain resources required for one transmission and the number of repetitions;
  • the communication unit 502 transmitting data on the target time domain resource of the repeated transmission includes:
  • N is a positive integer, n is greater than 0 and less than or equal to the number of repetitions, and the length of the first part is the same as the length of the time domain resource for the nth repetitive transmission;
  • the data is transmitted on the time domain resource for the nth repeated transmission .
  • the time domain resource for at least one repeated transmission in the repeated transmission is a non-contiguous time domain resource, the length of the time domain resource for each repeated transmission is the same, and the start of the target time domain resource is Resources are determined according to the rules of continuous resource mapping;
  • the communication unit 502 transmitting data on the target time domain resource of the repeated transmission includes:
  • N is a positive integer, n is greater than 0 and less than or equal to the number of repetitions, and the length of the first part is the same as the length of the time domain resource for the nth repetitive transmission;
  • the second part of the data is transmitted on the time domain resource after the time domain resource that is repeatedly transmitted for the nth time in the target time domain resource, where the second part is the data other than the first part Content.
  • the length of the time domain resource for the nth repeated transmission in the repeated transmission is less than the length of the time domain resource required for each repeated transmission
  • the communication unit 502 transmitting data on the target time domain resource of the repeated transmission includes:
  • the data is respectively transmitted on the time domain resources of the first to the n-1th repeated transmissions, where n is a positive integer, and n is greater than 0 and less than or equal to the number of repetitions.
  • the communication unit 502 transmits data on the target time domain resource of the repeated transmission further includes:
  • the first part of the data is transmitted on the time domain resource of the nth repeated transmission, and the length of the first part is the same as the length of the time domain resource of the nth repeated transmission.
  • the time-domain resource for at least one repeated transmission in the repeated transmission is a non-contiguous time-domain resource, and the length of the time-domain resource for each repeated transmission is the same;
  • the method further includes:
  • the second part of the data is transmitted on the time domain resource after the time domain resource that is repeatedly transmitted for the nth time in the target time domain resource, where the second part is the data other than the first part Content.
  • the first time domain resource includes a time domain resource determined according to a continuous resource mapping rule, and the starting resource in the target time domain resource is after the time domain resource determined according to the continuous resource mapping rule The first time domain resource that can be occupied by the repeated transmission.
  • the repeated transmission includes at least one transmission of uplink transmission or at least one transmission of downlink transmission.
  • the processing unit 501 is a processor and the communication unit 502 is a communication interface
  • the communication device involved in the embodiment of the present application may be the communication device shown in FIG. 26.
  • FIG. 25 or FIG. 26 may be used to implement the steps performed by the terminal device or the network device in the foregoing embodiment, which will not be repeated in this embodiment of the application.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • 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.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • 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, and a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)) )Wait.

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Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé pour déterminer une ressource de domaine temporel pour une transmission de données, et un produit associé. Le procédé consiste à : déterminer, selon une première ressource de domaine temporel et une deuxième ressource de domaine temporel d'une transmission à répétition, une ressource de domaine temporel cible pour une transmission à répétition, la première ressource de domaine temporel étant une ressource de domaine temporel qui ne peut pas être occupée pour une transmission à répétition, la deuxième ressource de domaine temporel étant une ressource de domaine temporel pour une transmission à répétition initiale, la deuxième ressource de domaine temporel comprenant une troisième ressource de domaine temporel se chevauchant avec la première ressource de domaine temporel et une quatrième ressource de domaine temporel comprenant uniquement des ressources autres que la troisième ressource de domaine temporel, et la ressource de domaine temporel cible comprenant la quatrième ressource de domaine temporel ; et transmettre des données sur la ressource de domaine temporel cible pour une transmission à répétition. La mise en œuvre des modes de réalisation de la présente invention peut réduire la longueur de ressources de domaine temporel continues requises pour une transmission de données à répétition, permettant ainsi de réduire le retard de la transmission de données à répétition.
PCT/CN2019/109739 2019-09-30 2019-09-30 Procédé de détermination de ressource de domaine temporel pour une transmission de données, dispositif et support de stockage informatique WO2021062813A1 (fr)

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CN201980095224.6A CN113711517B (zh) 2019-09-30 2019-09-30 确定数据传输的时域资源的方法、装置及计算机存储介质
PCT/CN2019/109739 WO2021062813A1 (fr) 2019-09-30 2019-09-30 Procédé de détermination de ressource de domaine temporel pour une transmission de données, dispositif et support de stockage informatique

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