WO2021031939A1 - Procédé et dispositif de transmission de données - Google Patents

Procédé et dispositif de transmission de données Download PDF

Info

Publication number
WO2021031939A1
WO2021031939A1 PCT/CN2020/108498 CN2020108498W WO2021031939A1 WO 2021031939 A1 WO2021031939 A1 WO 2021031939A1 CN 2020108498 W CN2020108498 W CN 2020108498W WO 2021031939 A1 WO2021031939 A1 WO 2021031939A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency hopping
transmission mode
data
hopping transmission
frequency
Prior art date
Application number
PCT/CN2020/108498
Other languages
English (en)
Chinese (zh)
Inventor
温容慧
余政
张兴炜
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021031939A1 publication Critical patent/WO2021031939A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular, to a data transmission method and device.
  • the fifth generation (5 th generation, 5G) mobile communication system a new air interface (new radio, NR) system supporting a transmission of data repeatedly, and repeat transmission of a plurality of times
  • the NR system supports frequency hopping transmission modes, including frequency hopping within a time slot and frequency hopping between time slots.
  • Frequency hopping between time slots means that different time slots use different frequency domain resources for data transmission.
  • Frequency hopping within a time slot means that a time slot allows two different frequency hopping center frequencies.
  • high-level signaling is used to indicate the use of frequency hopping within the time slot or the use of frequency hopping between time slots.
  • Downlink control information is used to indicate whether to perform frequency hopping when transmitting data.
  • DCI Downlink control information
  • This application provides a data transmission method and device to solve the problem of determining the frequency hopping transmission mode.
  • an embodiment of the present application provides a data transmission method, which can be applied to a terminal device or a chip in a terminal device.
  • the following description is made by taking the terminal device as an example of the execution subject.
  • the terminal device receives first indication information from the network device, the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set of N frequency hopping transmission modes A mode set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the terminal device receives second indication information from the network device, where the second indication information indicates the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data.
  • the terminal device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the first time-frequency resource and the number of times of repeated transmission of the first data. Then, the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device, or uses the first frequency hopping transmission mode to send the first data to the network device. In the above manner, a set is determined from a plurality of frequency hopping transmission mode sets through the first indication information, and then the first time-frequency resource for transmitting the first data and the number of repeated transmissions of the first data are combined to determine which frequency hopping to use
  • the transmission method transmits data, so that the terminal equipment and the network equipment agree on the understanding of the frequency hopping transmission method, so that the data transmission can proceed smoothly.
  • the terminal device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the number of transmissions of the first data in the first time unit, wherein The number of transmissions of the first data in the first time unit is determined by the first time-frequency resource and the number of repeated transmissions of the first data. Since the frequency hopping transmission modes applicable to different transmission times of the first data in the first time unit are different, the frequency hopping transmission mode can be determined without adding additional signaling bits, which saves signaling overhead.
  • the terminal device determines the first hop from the set of first frequency hopping transmission modes according to the number of transmissions of the first data in the first time unit and the first mapping relationship.
  • Frequency transmission mode wherein the first mapping relationship includes: when the number of times the first data is transmitted in the first time unit is 1, the frequency hopping transmission in the corresponding first frequency hopping transmission mode set And when the number of times the first data is transmitted in the first time unit is greater than one, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the first mapping relationship is predefined by a protocol or configured by the network device to the terminal device through signaling.
  • the first indication information is carried in radio resource control RRC signaling.
  • the first indication information can reuse the signaling bits that indicate the frequency hopping transmission mode in the current protocol, without adding additional signaling overhead, and can ensure the forward compatibility of the system.
  • the second indication information is carried in the downlink control information DCI.
  • the embodiments of the present application provide a data transmission method, which can be applied to a network device or a chip in a network device.
  • the following describes an example in which the execution subject is a network device .
  • the network device sends first indication information to the terminal device, where the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode in N frequency hopping transmission mode sets Set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the network device sends second indication information to the terminal device, where the second indication information indicates the first time-frequency resource used to transmit the first data and the number of times the first data is repeatedly transmitted.
  • the network device determines a first frequency hopping transmission mode from the set of first frequency hopping transmission modes according to the first time-frequency resource and the number of times that the first data is repeatedly transmitted.
  • the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device, or uses the first frequency hopping transmission mode to send the first data to the terminal device.
  • the network device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the number of times the first data is transmitted in the first time unit, wherein the first frequency hopping transmission mode is The number of times a piece of data is transmitted in the first time unit is determined by the first time-frequency resource and the number of repeated transmissions of the first data.
  • the network device determines the first hop from the set of first frequency hopping transmission modes according to the number of transmissions of the first data in the first time unit and the first mapping relationship.
  • Frequency transmission mode wherein the first mapping relationship includes: when the number of times the first data is transmitted in the first time unit is 1, the frequency hopping transmission in the corresponding first frequency hopping transmission mode set And when the number of times the first data is transmitted in the first time unit is greater than one, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the first indication information is carried in radio resource control RRC signaling.
  • the second indication information is carried in the downlink control information DCI.
  • the embodiments of the present application provide a data transmission method, which can be applied to a terminal device or a chip in a terminal device.
  • the following describes an example in which the execution subject is the terminal device.
  • the terminal device receives first indication information from the network device, the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set of N frequency hopping transmission modes A mode set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the terminal device receives third indication information from the network device, where the third indication information indicates the first frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device, or uses the first frequency hopping transmission mode to send the first data to the network device.
  • a frequency hopping transmission mode set is determined from multiple frequency hopping transmission modes through the first indication information, and then a frequency hopping transmission mode is determined from the frequency hopping transmission mode set to transmit data through the third indication information, so that the terminal The equipment and network equipment reached an agreement on the understanding of the frequency hopping transmission mode, so that the data transmission can proceed smoothly.
  • the first frequency hopping transmission mode is one of the following: non-frequency hopping transmission mode, intra-slot frequency hopping, inter-slot frequency hopping, inter-repetitive frequency hopping, and intra-repetitive frequency hopping , Hybrid frequency hopping method of frequency hopping between timeslots and frequency hopping between repetitions, mixed frequency hopping methods of frequency hopping between timeslots and frequency hopping within repetitions, mixed frequency hopping methods of frequency hopping in timeslots and frequency hopping between repetitions, time A hybrid frequency hopping method of intra-slot frequency hopping and repeated intra-frequency hopping.
  • the first indication information is carried in radio resource control RRC signaling.
  • the first indication information can reuse the signaling bits that indicate the frequency hopping transmission mode in the current protocol, without adding additional signaling overhead, and can ensure the forward compatibility of the system.
  • the third indication information is carried in the downlink control information DCI.
  • the bit length of the third indication information is 1 bit or 2 bits.
  • the embodiments of the present application provide a data transmission method, which can be applied to a network device or a chip in a network device.
  • the following describes an example in which the execution subject is a network device .
  • the network device sends first indication information to the terminal device, where the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode in N frequency hopping transmission mode sets Set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the network device sends third indication information to the terminal device, where the third indication information indicates the first frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device, or uses the first frequency hopping transmission mode to send the first data to the terminal device.
  • the first frequency hopping transmission mode is one of the following: non-frequency hopping transmission mode, intra-slot frequency hopping, inter-slot frequency hopping, inter-repetitive frequency hopping, and repetitive internal hopping Frequency, inter-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, inter-slot frequency hopping and intra-repetition frequency hopping mixed frequency hopping mode, intra-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, The mixed frequency hopping mode of frequency hopping within the time slot and repeated internal frequency hopping.
  • the first indication information is carried in radio resource control RRC signaling.
  • the third indication information is carried in the downlink control information DCI.
  • the bit length of the third indication information is 1 bit or 2 bits.
  • the embodiments of the present application provide a data transmission method, which can be applied to a terminal device or a chip in a terminal device.
  • the following describes an example in which the execution subject is the terminal device.
  • the terminal device receives first indication information from the network device, the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set of N frequency hopping transmission modes A mode set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the terminal device receives fourth indication information from the network device, where the fourth indication information indicates a first frequency hopping transmission mode subset in the first frequency hopping transmission mode set, and the first frequency hopping transmission mode is The set is a frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets included in the first frequency hopping transmission mode set, and each frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets includes At least one frequency hopping transmission mode, M is an integer greater than 1.
  • the terminal device receives second indication information from the network device, where the second indication information indicates the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data.
  • the terminal device determines the first frequency hopping transmission mode from the subset of the first frequency hopping transmission mode according to the first time-frequency resource and the number of repeated transmissions of the first data.
  • the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device, or uses the first frequency hopping transmission mode to send the first data to the network device.
  • the first indication information is used to select the frequency hopping transmission mode set, and then the fourth indication information is used to select a subset from the frequency hopping transmission mode set, and then the first time-frequency resource is combined with the repeated transmission of the first data
  • the number of times to determine a specific frequency hopping transmission mode so that the terminal equipment and network equipment agree on the understanding of the frequency hopping transmission mode, so that the data transmission can proceed smoothly.
  • the terminal device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode subset according to the number of transmissions of the first data in the first time unit, wherein the first frequency hopping transmission mode is The number of times a piece of data is transmitted in the first time unit is determined by the first time-frequency resource and the number of repeated transmissions of the first data.
  • the terminal device determines the first hop from the first frequency hopping transmission mode subset according to the number of transmissions of the first data in the first time unit and the second mapping relationship.
  • Frequency transmission mode wherein the second mapping relationship includes: when the number of times the first data is transmitted in the first time unit is 1, the corresponding frequency hopping transmission in the first frequency hopping transmission mode subset And, when the number of times the first data is transmitted in the first time unit is greater than 1, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode subset.
  • the first frequency hopping transmission mode is one of the following: non-frequency hopping transmission mode, intra-slot frequency hopping, inter-slot frequency hopping, inter-repetitive frequency hopping, and repetitive internal hopping Frequency, inter-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, inter-slot frequency hopping and intra-repetition frequency hopping mixed frequency hopping mode, intra-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, The mixed frequency hopping mode of frequency hopping within the time slot and repeated internal frequency hopping.
  • the first indication information is carried in radio resource control RRC signaling.
  • the second indication information is carried in the downlink control information DCI.
  • the fourth indication information is carried in the downlink control information DCI.
  • the bit length of the fourth indication information is 1 bit.
  • the embodiments of the present application provide a data transmission method, which can be applied to a network device or a chip in a network device.
  • the following describes an example in which the execution subject is a network device .
  • the network device sends first indication information to the terminal device, where the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode in N frequency hopping transmission mode sets Set, each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1.
  • the network device sends fourth indication information to the terminal device, where the fourth indication information indicates a first frequency hopping transmission mode subset in the first frequency hopping transmission mode set, and the first frequency hopping transmission mode subset Is one frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets included in the first frequency hopping transmission mode set, and each frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets includes at least A frequency hopping transmission mode, M is an integer greater than 1.
  • the network device sends second indication information to the terminal device, where the second indication information indicates the time-frequency resource used to transmit the first data and the number of times the first data is repeatedly transmitted.
  • the network device determines a first frequency hopping transmission mode from the subset of the first frequency hopping transmission mode according to the first time-frequency resource and the number of repeated transmissions of the first data.
  • the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device, or uses the first frequency hopping transmission mode to send the first data to the terminal device.
  • the network device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode subset according to the number of transmissions of the first data in the first time unit, wherein the first frequency hopping transmission mode is The number of times a piece of data is transmitted in the first time unit is determined by the first time-frequency resource and the number of repeated transmissions of the first data.
  • the network device determines the first hop from the first frequency hopping transmission mode subset according to the number of transmissions of the first data in the first time unit and the second mapping relationship.
  • Frequency transmission mode wherein the second mapping relationship includes: when the number of times the first data is transmitted in the first time unit is 1, the corresponding frequency hopping transmission in the first frequency hopping transmission mode subset And, when the number of times the first data is transmitted in the first time unit is greater than 1, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode subset.
  • the first frequency hopping transmission mode is one of the following: non-frequency hopping transmission mode, intra-slot frequency hopping, inter-slot frequency hopping, inter-repetitive frequency hopping, and repetitive internal hopping Frequency, inter-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, inter-slot frequency hopping and intra-repetition frequency hopping mixed frequency hopping mode, intra-slot frequency hopping and inter-repetition frequency hopping mixed frequency hopping mode, The mixed frequency hopping mode of frequency hopping within the time slot and repeated internal frequency hopping.
  • the first indication information is carried in radio resource control RRC signaling.
  • the second indication information is carried in the downlink control information DCI.
  • the fourth indication information is carried in the downlink control information DCI.
  • the bit length of the fourth indication information is 1 bit.
  • the present application provides a communication device used in a terminal device or a chip of a terminal device, including a unit or means for executing the method in the foregoing first aspect or any possible implementation of the first aspect , Or include the unit or means used to execute the foregoing third aspect or any possible implementation of the third aspect, or include the foregoing fifth aspect or any possible implementation method of the fifth aspect The unit or means.
  • the present application provides a communication device used in a network device or a chip of a network device, including a unit or means for executing the method in the foregoing second aspect or any possible implementation of the second aspect, or including A unit or means for executing the aforementioned fourth aspect or a method in any possible implementation of the fourth aspect, or includes a unit or means for executing the aforementioned sixth aspect or any possible implementation of the sixth aspect means.
  • the present application provides a communication device used in a terminal device or a chip of a terminal device, comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least One processing element is used to execute the method in the foregoing first aspect or any possible implementation of the first aspect, or to execute the method in the foregoing third aspect or any possible implementation of the third aspect, or to execute The foregoing fifth aspect or any possible implementation manner of the fifth aspect.
  • the present application provides a communication device used in a network device or a chip of a network device, comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least One processing element is used to execute the method in the foregoing second aspect or any possible implementation of the second aspect, or to execute the method in the foregoing fourth aspect or any possible implementation of the fourth aspect, or to execute The aforementioned sixth aspect or any possible implementation manner of the sixth aspect.
  • the present application provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or from The signal of the processor is sent to another communication device other than the communication device, and the processor is used to implement the foregoing first aspect or the method in any possible implementation manner of the first aspect through logic circuits or execution code instructions , Or used to implement the foregoing third aspect or any possible implementation method of the third aspect, or used to implement the foregoing fifth aspect or any possible implementation method of the fifth aspect.
  • the present application provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or from The signal of the processor is sent to other communication devices other than the communication device, and the processor is used to implement the foregoing second aspect or any possible implementation method of the second aspect through logic circuits or execution code instructions , Or used to implement the foregoing fourth aspect or any possible implementation method of the fourth aspect, or used to implement the foregoing sixth aspect or any possible implementation method of the sixth aspect.
  • the present application provides a computer program product, the computer program product including computer instructions, when the computer instructions are executed, cause the foregoing first aspect or any possible implementation of the first aspect to be executed , Or cause the foregoing second aspect or any possible implementation of the second aspect to be executed, or cause the foregoing third aspect or any possible implementation of the third aspect to be executed, or cause the foregoing fourth Aspect or any possible implementation manner of the fourth aspect is executed, or causes the foregoing fifth aspect or any possible implementation manner of the fifth aspect to be executed, or causes the foregoing sixth aspect or the sixth aspect to be executed The method in any possible implementation is executed.
  • this application provides a computer-readable storage medium that stores computer instructions.
  • the foregoing first aspect or any possible implementation of the first aspect The method of is executed, or the method in the foregoing second aspect or any possible implementation of the second aspect is executed, or the method in the foregoing third aspect or any possible implementation of the third aspect is executed, or Cause the foregoing fourth aspect or any possible implementation of the fourth aspect to be executed, or cause the foregoing fifth aspect or any possible implementation of the fifth aspect to be executed, or cause the foregoing sixth aspect or The method in any possible implementation of the sixth aspect is executed.
  • FIG. 1 is a schematic diagram of a possible communication system architecture in an embodiment of this application
  • Figure 2 is a schematic diagram of frequency hopping in an embodiment of this application.
  • FIG. 3 is a schematic diagram of possible frequency hopping between time slots in an embodiment of this application.
  • FIG. 4 is a schematic diagram of a possible frequency hopping in a time slot in an embodiment of this application.
  • FIG. 5 is a schematic diagram of a possible frequency hopping between repetitions in an embodiment of this application.
  • FIG. 6 is a schematic diagram of a possible repeated internal frequency hopping in an embodiment of this application.
  • FIG. 7 is a schematic diagram of data transmission in an embodiment of this application.
  • FIG. 8 is a schematic diagram of a possible frequency hopping within a time slot in an embodiment of this application.
  • FIG. 9 is a schematic diagram of a possible frequency hopping in a time slot in a MultiRepsPerSlot scenario according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of another possible frequency hopping in a time slot in the MultiRepsPerSlot scenario according to an embodiment of the application.
  • FIG. 11 is a schematic diagram of a possible repeated internal frequency hopping in the MultiRepsPerSlot scenario according to an embodiment of the application.
  • FIG. 12 is a schematic diagram of possible frequency hopping between time slots in the OneRepPerSlot scenario according to an embodiment of the application.
  • FIG. 13 is a schematic diagram of a possible inter-repeat frequency hopping in the MultiRepsPerSlot scenario according to an embodiment of the application;
  • FIG. 14 is a schematic diagram of possible frequency hopping between time slots in the MultiRepsPerSlot scenario according to an embodiment of the application.
  • 15 is a schematic diagram of another data transmission in an embodiment of this application.
  • FIG. 16 is a schematic diagram of a hybrid frequency hopping manner in an embodiment of this application.
  • FIG. 17 is another schematic diagram of data transmission in an embodiment of the application.
  • FIG. 18 is a schematic diagram of a communication device 1800 in an embodiment of this application.
  • FIG. 19 is a schematic diagram of a communication device 1900 in an embodiment of this application.
  • 20 is a schematic diagram of network equipment in an embodiment of this application.
  • FIG. 21 is a schematic diagram of a terminal device in an embodiment of this application.
  • FIG. 1 is a schematic diagram of the architecture of a mobile communication system applied in an embodiment of the present application.
  • the mobile communication system includes a core network device 110, an access network device 120, and at least one terminal device (the terminal device 130 and the terminal device 140 in FIG. 1).
  • the terminal device is connected to the access network device in a wireless manner
  • the access network device is connected to the core network device in a wireless or wired manner.
  • the core network equipment and the access network equipment can be separate and different physical equipment, or the function of the core network equipment and the logical function of the access network equipment can be integrated on the same physical device, or it can be integrated on the same physical device.
  • the functions of part of the core network equipment and part of the access network equipment are introduced.
  • the terminal device can be a fixed location or movable.
  • Fig. 1 is only a schematic diagram.
  • the communication system may also include other network equipment, such as wireless relay equipment and wireless backhaul equipment, which are not shown in Fig. 1.
  • the embodiment of the present application does not limit the number of core network equipment, access network equipment, and terminal equipment included in the mobile communication system.
  • Access network equipment is the access equipment that terminal equipment accesses to the mobile communication system in a wireless manner. It can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), and a transmission reception point (TRP). ), the next generation NodeB (gNB) in the 5G mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also be a module or unit that completes part of the base station functions, for example, It can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the access network device.
  • access network equipment is referred to as network equipment. Unless otherwise specified, network equipment refers to access network equipment.
  • a terminal device may also be called a terminal, user equipment (UE), mobile station, mobile terminal, and so on.
  • Terminal equipment can be mobile phones, tablets, computers with wireless transceiver functions, virtual reality terminal equipment, augmented reality terminal equipment, wireless terminals in industrial control, wireless terminals in unmanned driving, wireless terminals in remote surgery, and smart grids Wireless terminals in the Internet, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
  • Network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airborne aircraft, balloons, and satellites.
  • the embodiments of the present application do not limit the application scenarios of network equipment and terminal equipment.
  • Network equipment and terminal equipment can communicate through licensed spectrum, or communicate through unlicensed spectrum, or communicate through licensed spectrum and unlicensed spectrum at the same time.
  • Network equipment and terminal equipment can communicate through a frequency spectrum below 6 GHz (gigahertz, GHz), communicate through a frequency spectrum above 6 GHz, and communicate using a frequency spectrum below 6 GHz and a frequency spectrum above 6 GHz at the same time.
  • the embodiment of the present application does not limit the spectrum resource used between the network device and the terminal device.
  • the embodiments of the present application can be applied to 5G mobile communication systems or future mobile communication systems.
  • the International Telecommunication Union (ITU) defines three types of application scenarios for 5G and future mobile communication systems. These three types of application scenarios are enhanced Mobile Broadband (eMBB), high reliability and low time. Extended communications (ultra reliable and low latency communications, URLLC) and massive machine type communications (mMTC).
  • eMBB enhanced Mobile Broadband
  • URLLC ultra reliable and low latency communications
  • mMTC massive machine type communications
  • the first time unit can be a slot or a part of a time slot, a subframe or a part of a subframe, or a radio frame or a part of a radio frame, etc. .
  • the first time unit is a time slot as an example for description.
  • a part of a time slot can refer to a symbol (symbol) used for uplink transmission in a time slot, for example, a symbol starting from an uplink-downlink transition point to a time slot boundary, or from an uplink and downlink The symbol used for uplink transmission from the transition point to the next uplink-downlink transition point.
  • a part of a time slot can be a symbol for downlink transmission starting from a time slot boundary to an uplink-downlink transition point, or from an uplink-downlink transition point to a time slot boundary for downlink transmission , Or the symbols used for downlink transmission from one uplink-downlink transition point to the next uplink-downlink transition point.
  • the symbols refer to time-domain symbols, where the time-domain symbols can be orthogonal frequency division multiplexing (OFDM) symbols, or discrete Fourier transform spread spectrum OFDM (Discrete Fourier Transform-spread-OFDM, DFT-s-OFDM) symbol.
  • Mini-slot is a newly introduced concept in the NR system. Mini-slot refers to one or more symbols whose time domain resources are less than one slot. If the time domain length used for one data transmission scheduled by the network device is less than one slot, the data transmission is called mini-slot-based data transmission. Data transmission based on mini-slot is usually used to transmit URLLC business data.
  • Frequency hopping refers to a communication method in which both the receiving end and the sending end change the frequency domain resources used in the information transmission process according to predetermined rules in order to obtain frequency diversity gain.
  • Figure 2 is a schematic diagram of a frequency hopping signal. As shown in Figure 2, the time domain includes 5 time periods: t1 to t5, and the frequency domain includes 5 frequency domain resources: f1 to f5. The corresponding frequency domain resources of the 5 time periods from t1 to t5 are f3. , F1, f5, f2, and f4.
  • inter-slot inter-slot
  • intra-slot intra-slot
  • Radio resource control RRC
  • scheduling signaling such as DCI
  • the scheduling signaling also indicates the time-frequency resources for data transmission.
  • Inter-slot frequency hopping means that the frequency domain resources used for information transmission remain unchanged within the slot, but the frequency domain resources used for information transmission vary between different slots according to predetermined rules.
  • Figure 3 is a schematic diagram of inter-slot frequency hopping. As shown in Figure 3, there are 2 slots in the time domain, each slot has 14 symbols, and 2 frequency domain resources in the frequency domain: f1 and f2. The sending end uses the frequency domain resource f1 to send data on the first slot, and uses the frequency domain resource f2 to send data on the second slot. It should be noted that when the OFDM symbol uses the normal cyclic prefix (NCP), one slot can include 14 symbols; when the OFDM symbol uses the extended cyclic prefix (ECP), one slot Can include 12 symbols. In the embodiment of the present application, one slot includes 14 symbols as an example.
  • Frequency hopping in a slot means that frequency domain resources used for information transmission change in the slot according to a predetermined rule. Taking the two-hop frequency hopping in the slot as an example, the information to be transmitted is divided into two parts, and the two parts use different frequency domain resources for transmission in the slot.
  • Figure 4 is a schematic diagram of intra-slot frequency hopping. As shown in Fig. 4, one slot is included in the time domain and two frequency domain resources are included in the frequency domain: f1 and f2.
  • the information sent by the sender includes two parts, the first part of information and the second part of information.
  • the sending end uses the frequency domain resource f2 on symbols 6 to 9 to send the first part of information, and uses the frequency domain resource f1 on symbols 10 to 13 to send the second part of information.
  • the shaded parts in Figures 3 and 4 indicate the resources occupied by information transmission.
  • the information transmission may be signaling transmission, data transmission, or reference signal transmission.
  • the following uses data transmission as an example of information transmission to describe the embodiments of the present application.
  • a piece of scheduling signaling can indicate one transmission of data or multiple repeated transmissions of data.
  • the frequency hopping transmission method can also have other frequency hopping methods, such as inter-repetition frequency hopping and intra-repetition frequency hopping. . It is understandable that in the repeated transmission scenario, the terms "repetitive transmission” and “transmission” are interchangeable.
  • a possible way to implement frequency hopping between repetitions is to select the frequency domain resource used for each repetitive transmission according to the sequence number of the repeated transmission: repeated transmissions with odd sequence numbers use one frequency domain resource, and repeated transmissions with even sequence numbers use another.
  • Frequency domain resources As shown in Figure 5, the same data is repeatedly transmitted 4 times, each transmission occupies 4 symbols, the first transmission and the third transmission use the same frequency domain resources, both are f1, the second transmission and the fourth transmission The same frequency domain resources are used for the second transmission, both are f2.
  • Repeated intra-frequency hopping means that each repeated transmission includes multiple hops, and the frequency domain resources used by each hop change according to predetermined rules.
  • the data is repeatedly transmitted 4 times, each repeated transmission occupies 4 symbols, each repeated transmission includes two hops, each repeated transmission of the first hop (ie the first 2 symbols of the 4 symbols) is used For the frequency domain resource f1, the frequency domain resource f2 is used for the second hop of each repeated transmission (that is, the last 2 symbols of the 4 symbols).
  • the embodiment of the present application provides a data transmission method, and exemplarily provides three feasible solutions to indicate the frequency hopping transmission mode of data.
  • the first feasible solution is to determine a set from multiple frequency hopping transmission mode sets through RRC signaling, and then determine which frequency hopping transmission mode to use to transmit data in combination with the number of repetitions of data transmission in a time slot.
  • the second feasible solution is to determine a set from multiple frequency hopping transmission mode sets through RRC signaling, and then combine DCI to determine which frequency hopping transmission mode to use to transmit data from the determined set.
  • the third feasible scheme is to determine a set from multiple frequency hopping transmission mode sets through RRC signaling, and then determine a subset from the determined set through DCI, and then determine the selection based on the number of repetitions of data transmission in a time slot Which frequency hopping transmission method to transmit data.
  • the data transmission mentioned in the embodiments of this application can be uplink transmission, that is, a terminal device sends data to a network device, and the corresponding sending end is the terminal device and the receiving end is the network device; it can also be downlink transmission, that is, The network device sends data to the terminal device, the corresponding sending end is the network device, and the receiving end is the terminal device; it can also be device-to-device (D2D) data transmission, that is, the terminal device sends data to the terminal device.
  • D2D device-to-device
  • the network device involved may specifically be the network device shown in FIG. 1, and the terminal device may specifically be one of the terminal devices shown in FIG. 1. It can be understood that, in the embodiments of the present application, the functions of the network device may also be implemented by a chip applied to the network device, and the function of the terminal device may also be implemented by a chip applied to the terminal device.
  • the method flow includes:
  • the network device sends first indication information to the terminal device.
  • the terminal device receives the first indication information from the network device.
  • the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set among N frequency hopping transmission mode sets.
  • each of the N frequency hopping transmission mode sets includes at least one frequency hopping transmission mode, and N is an integer greater than 1. It can be understood that, in this application, “at least one” can be “one", “two” or “two or more”.
  • the first indication information may be carried in higher layer signaling, such as RRC signaling.
  • RRC signaling For example, two frequency hopping transmission mode sets are configured in the network device and the terminal device, which are set 1 and set 2, respectively, and the bit length of the first indication information may be 1 bit. When the value of the first indication information is 0, it indicates set 1, and when the value of the first indication information is 1, it indicates set 2.
  • 3 or more than 3 frequency hopping transmission mode sets can also be configured, and the bit length of the first indication information can be determined according to the number of frequency hopping transmission mode sets.
  • the above-mentioned set of N frequency hopping transmission modes may be predefined, or configured by the network equipment to the terminal equipment through RRC signaling.
  • S702 The network device sends second indication information to the terminal device.
  • the terminal device receives the second indication information from the network device.
  • the second indication information indicates the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data.
  • the second indication information may include the start time domain location information of the first transmission of the first data, the time domain length of the first transmission, and the number of repeated transmissions of the first data (hereinafter referred to as the number of repetitions).
  • the second indication information may include the time domain resource location information of each data transmission, and the time domain length of one transmission, that is, the number of repetitions is implicitly indicated.
  • the network device and the terminal device may be configured with a starting time domain position, a time domain length, and the number of repetitions, and the corresponding relationship of the index.
  • the second indication information indicates the first time-frequency resource and the number of repetitions by indicating the index finger.
  • the terminal device determines a first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the first time-frequency resource and the number of times the first data is repeatedly transmitted.
  • the network device determines a first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the first time-frequency resource and the number of times the first data is repeatedly transmitted.
  • the sequence between S704 and S702 is not limited.
  • the second instruction information may be sent to the terminal device, or the second instruction information may be sent first before the determination The first frequency hopping transmission mode.
  • the terminal device uses the first frequency hopping transmission mode to send the first data to the network device; correspondingly, the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device.
  • the network device uses the first frequency hopping transmission mode to send the first data to the terminal device; correspondingly, the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device.
  • step S704 can be implemented in the following manner: the network device determines the first frequency hopping transmission mode from the first frequency hopping transmission mode set according to the number of transmissions of the first data in the first time unit.
  • the number of times the first data is transmitted in the first time unit is determined by the first time-frequency resource and the number of repeated transmissions of the first data.
  • the network device or terminal device can calculate the actual number of repetitions and the length and start of each repetitive transmission after knowing the time domain length, starting time domain position, and number of repetitions of the first repeated transmission.
  • Time domain position which can determine the number of times the first data is transmitted in a time slot. Therefore, the first frequency hopping transmission mode can be selected from the first frequency hopping transmission mode set according to the number of times the first data is transmitted in a time slot.
  • the number of times that the first data is repeatedly transmitted in a time slot can be divided into two cases.
  • One case is that the number of times the first data is repeatedly transmitted in a time slot is once. In the embodiment of this application, this case It is called the OneRepPerSlot scenario; another scenario is that the number of times the first data is transmitted in a time slot is greater than once, and this scenario is called the MultiRepsPerSlot scenario in the embodiment of the present application.
  • the first frequency hopping transmission mode selected from the first frequency hopping transmission set may be intra-slot frequency hopping or repeated intra-frequency hopping; for the MultiRepsPerSlot scenario, from the first hop The first frequency hopping transmission mode selected in the frequency transmission set may be inter-repetition frequency hopping.
  • the first frequency hopping transmission mode selected from the first frequency hopping transmission set may be inter-slot frequency hopping or inter-repetition frequency hopping; for the MultiRepsPerSlot scenario, from the first The first frequency hopping transmission mode selected in the frequency hopping transmission set may be frequency hopping between time slots.
  • the first mapping relationship may be pre-defined through a protocol, or the network device may configure the first mapping relationship to the terminal device through signaling, and the first time unit is executed according to the first data.
  • the first frequency hopping transmission mode is determined from the first frequency hopping transmission mode set according to the number of transmissions of the first data in the first time unit and the first mapping relationship.
  • the first mapping relationship may include: when the number of times the first data is transmitted in the first time unit is 1, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode set; When the number of times the first data is transmitted in the first time unit is greater than once, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the first frequency hopping transmission mode set includes intra-repetition frequency hopping and inter-repetition frequency hopping. When the number of times the first data is transmitted in the first time unit is greater than 1, the corresponding inter-repetition frequency hopping is When the number of times the first data is transmitted in the first time unit is 1, corresponding to repeated internal frequency hopping.
  • the first mapping relationship example 1 When the first indication information is 0, it indicates set 1.
  • Set 1 includes intra-slot (or intra-repetition) and inter-repetition two frequency hopping transmission modes, corresponding to OneRepPerSlot scenario respectively And MultiRepsPerSlot scene.
  • the first mapping relationship example 2 When the first indication information takes the value 1, it indicates set 2.
  • Set 2 includes two frequency hopping transmission modes, inter-slot (or inter-repetition) and inter-slot, corresponding to the OneRepPerSlot scenario respectively And MultiRepsPerSlot scene.
  • the bit length of the first indication information may be 1 bit.
  • the DCI instructs to perform frequency hopping it can be determined according to the second indication information in the DCI whether the current data transmission scenario is the OneRepPerSlot scenario or the MultiRepsPerSlot scenario, and then the frequency hopping transmission mode used for the data transmission scheduled by the DCI is determined.
  • Table 2 for the MultiRepsPerSlot scenario, when the first indication information indicates set 1, it can be determined that the data transmission scheduled by the DCI adopts the inter-repetition frequency hopping transmission mode.
  • the first indication information can reuse the signaling bits indicating the frequency hopping transmission mode in the current protocol, without adding signaling overhead, and can ensure the forward compatibility of the system.
  • the inter-slot frequency hopping or the intra-slot frequency hopping may be used according to the RRC signaling instruction according to the provisions of the existing protocol. Since there is no repeated transmission in this scenario, it can be equivalent to the OneRepPerSlot scenario, so that the frequency hopping transmission mode can be determined according to the OneRepPerSlot scenario.
  • intra-slot frequency hopping is used. It should be understood that intra-slot frequency hopping is equivalent to intra-repetition frequency hopping in the OneRepPerSlot scenario.
  • the data transmitted each time occupies 8 symbols, and the intra-slot frequency hopping method is adopted.
  • the 8 symbols occupied by the repeated transmission are divided into two segments, each segment has 4 symbols, the first 4 symbols use frequency domain resource f2, and the last 4 symbols use frequency domain resource f1.
  • intra-slot frequency hopping is also used in the MultiRepsPerSlot scenario, taking 4 repeated transmissions, and each transmission uses 4 symbols as an example.
  • the first slot has 3 transmissions using a total of 12 symbols, and each hop uses 6 symbols.
  • the second slot has 1 transmission, 4 symbols are used in total, and 2 symbols are used for each hop.
  • the first two symbols of the first transmission and the second transmission in the first slot use the frequency domain resource f1; the last two symbols of the second transmission and the third transmission in the first slot use the frequency domain resource f2.
  • the second repetitive transmission is divided into two segments, and the two segments use different frequency domain resources.
  • independent demodulation reference signals are needed to assist each two symbols.
  • the receiving end performs channel estimation, and the DMRS needs to occupy a certain time-frequency resource, which results in less available resources for data signals and increases system resource overhead.
  • There is only the fourth transmission in the second slot and the first two symbols use the frequency domain resource f1, and the last two symbols use the frequency domain resource f2, which also has the problem of increasing system resource overhead.
  • Another possible implementation is to perform segmentation according to the repeated transmission boundary in the intra-slot frequency hopping transmission mode to ensure that the data repeatedly transmitted each time is not divided into two segments.
  • the first transmission, the second transmission, and the fourth transmission use the frequency domain resource f1, the third transmission uses the frequency domain resource f2, and the second slot has only one repetition without segmentation.
  • the first, second, and fourth transmissions all use the frequency domain resource f1, and only the third transmission uses the frequency domain resource f2, which results in a decrease in diversity gain. Therefore, using intra-slot frequency hopping in the OneRepPerSlot scenario, instead of using intra-slot frequency hopping in the MultiRepsPerSlot scenario, can reduce the overhead of DMRS and increase the frequency diversity gain of frequency hopping.
  • intra-repetition frequency hopping transmission mode is also used in the MultiRepsPerSlot scenario, as shown in Figure 11, four transmissions are used, and each transmission uses 4 symbols as an example. Each transmission is divided into two hops, and each hop uses different frequency domain resources for transmission. The first hop of each transmission uses frequency domain resource f1 on the first 2 symbols of the 4 symbols; the second hop of each transmission uses frequency domain resource f2 on the last 2 symbols of the 4 symbols. transmission. This causes the frequency domain resource to be changed every 2 symbols, which not only leads to an increase in implementation complexity, but also causes an increase in DMRS overhead and a decrease in system transmission efficiency.
  • intra-slot frequency hopping is equivalent to intra-repetition frequency hopping. Therefore, intra-repetition frequency hopping can be used only in OneRepPerSlot scenario, instead of intra-repetition frequency hopping in MultiRepsPerSlot scenario, which can improve the system The transmission efficiency.
  • an inter-slot frequency hopping transmission mode can be used, as shown in Figure 12, taking two transmissions, each using 7 symbols as an example.
  • the first slot ie, the first transmission
  • the second slot ie, the second transmission
  • the inter-repetition frequency hopping transmission mode can be used. As shown in Figure 13, take 4 transmissions and use 4 symbols for each transmission as an example.
  • the first slot is transmitted 3 times, and the second slot is Transfer 1 time.
  • the first transmission and the third transmission use the frequency domain resource f1, and the second transmission and the fourth transmission use the frequency domain resource f2.
  • the inter-slot frequency hopping transmission method can also be used. As shown in Figure 14, 4 transmissions are used, and each transmission uses 4 symbols as an example. The first slot is transmitted twice, and the second slot is transmitted twice. Transmission 2 times. The first transmission and the second transmission use the frequency domain resource f1, and the third transmission and the fourth transmission use the frequency domain resource f2.
  • the use of intra-slot can be determined based on the number of symbols occupied by each hop or the number of configured DMRS.
  • -Slot frequency hopping transmission mode For example, if the number of symbols occupied by a hop in one transmission is less than L, or a slot (or one transmission) is configured with only one symbol to carry DMRS, the slot where the transmission is located can be prohibited from using intra-slot frequency hopping transmission Or prohibit the use of intra-slot frequency hopping transmission for this transmission.
  • L is a positive integer greater than 1, for example, the value is 3.
  • the method flow includes:
  • S1501 The network device sends first indication information to the terminal device.
  • the terminal device receives the first indication information from the network device.
  • the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set among N frequency hopping transmission mode sets.
  • S1501 please refer to S701, which will not be repeated here.
  • the network device sends third indication information to the terminal device.
  • the terminal device receives the third instruction information from the network device.
  • the third indication information indicates the first frequency hopping transmission mode in the first frequency hopping transmission mode set.
  • the terminal device uses the first frequency hopping transmission mode to send the first data to the network device; correspondingly, the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device.
  • the network device uses the first frequency hopping transmission mode to send the first data to the terminal device; correspondingly, the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device.
  • the first indication information may be carried in RRC signaling
  • the third indication information may be carried in DCI.
  • the frequency hopping transmission mode of data is indicated jointly by RRC signaling and DCI.
  • the first frequency hopping transmission mode may be a single-mode frequency hopping transmission mode, such as intra-slot frequency hopping, inter-slot frequency hopping, inter-repetitive frequency hopping, and repetitive intra-frequency hopping.
  • the first frequency hopping transmission mode can also be a mixed frequency hopping mode, such as a mixed frequency hopping mode of inter-slot frequency hopping and inter-repetition frequency hopping, a mixed frequency hopping mode of inter-slot frequency hopping and repeated intra-frequency hopping, and intra-time slot Frequency hopping and inter-repetition frequency hopping mixed frequency hopping method, intra-slot frequency hopping and repetitive intra-frequency hopping mixed frequency hopping method, intra-slot frequency hopping and inter-slot frequency hopping mixed frequency hopping method, repetitive intra-frequency hopping And the hybrid frequency hopping method of frequency hopping between repetitions.
  • the first frequency hopping transmission mode may also be a non-frequency hopping transmission mode, that is, no frequency hopping technology is used in the data transmission process.
  • the first frequency hopping transmission mode may also be other types of frequency hopping transmission modes that may appear in the future.
  • the first set of frequency hopping transmission modes may include at least one of the above-mentioned frequency hopping transmission modes.
  • FIG 16 (A) is an example of a hybrid frequency hopping method of frequency hopping between time slots and frequency hopping between repetitions.
  • 1 scheduling includes 4 transmissions, each transmission uses 4 symbols, the first transmission and the second transmission are located in the first slot, the third transmission and the fourth transmission Located in the second slot, the frequency domain resource f1 is used for the first transmission and the fourth transmission, and the frequency domain resource f2 is used for the second transmission and the third transmission.
  • Figure 16 (B) is another example of a hybrid frequency hopping method of frequency hopping between time slots and frequency hopping between repetitions.
  • 1 scheduling includes 4 transmissions, each transmission uses 4 symbols, the first transmission and the second transmission are located in the first slot, the third transmission and the fourth transmission Located in the second slot, the frequency domain resource f1 is used for the first transmission, the frequency domain resource f2 is used for the second transmission, the frequency domain resource f3 is used for the third transmission, and the frequency domain resource f4 is used for the fourth transmission.
  • data transmission can be performed according to inter-slot frequency hopping or inter-repetition frequency hopping.
  • data transmission can be performed according to the inter-repetition frequency hopping.
  • the hybrid frequency hopping method of frequency hopping between timeslots and frequency hopping within repetitions can make the frequency domain resources used between different time slots partly or completely different, and the frequency domain resources used in one repetition are not completely the same, thereby improving frequency diversity Gain.
  • Figure 16 (C) is an example of a hybrid frequency hopping method of inter-slot frequency hopping and repeated intra-frequency hopping. As shown in Figure 16 (C), one scheduling includes two transmissions. Each transmission uses 8 symbols. The first transmission is on the first slot, and the second transmission is on the second slot.
  • the first hop of the second transmission (that is, the first 4 symbols of the first transmission) uses frequency domain resources f1
  • the second hop of the first transmission uses frequency domain resources f2
  • the first hop of the second transmission (that is, the first 4 symbols of the second transmission) uses the frequency domain resource f2
  • the second hop of the second transmission (that is, the last 4 symbols of the second transmission) Frequency domain resource f1.
  • Figure 16 (D) is another example of a hybrid frequency hopping method of inter-slot frequency hopping and repeated intra-frequency hopping. As shown in Figure 16 (D), one scheduling includes two transmissions, each transmission uses 8 symbols, the first transmission is on the first slot, and the second transmission is on the second slot.
  • the first hop of the second transmission uses the frequency domain resource f1, the second hop of the first transmission uses the frequency domain resource f2, the first hop of the second transmission uses the frequency domain resource f3, and the second hop of the second transmission uses the frequency domain.
  • Resource f4 The principle of the hybrid frequency hopping method of inter-slot frequency hopping and intra-slot frequency hopping is similar to the principle of the above-mentioned hybrid frequency hopping method of inter-slot frequency hopping and repeated intra-frequency hopping. For related description, please refer to the above description. Repeat.
  • the network device informs the data transmission to use 13 symbols, and the transmission starts from the 12th symbol of the first slot. Because the data transmission crosses the slot boundary and is divided into 2 transmissions, that is, the first transmission occupies the first slot. The 12th to 14th symbols and the second transmission occupy the 1st to 10th symbols of the second slot. The second transmission is divided into two parts, and each part occupies 5 symbols. If the mixed frequency hopping transmission mode of inter-slot frequency hopping and repeated intra-frequency hopping is used, the first transmission occupies 3 symbols in the first slot according to the previous setting criterion. Since the number of symbols occupies less, no frequency hopping is used.
  • the frequency domain resource f1 is used for the first transmission
  • the frequency domain resource f2 is used for the first part of the second transmission
  • the frequency domain resource f1 is used for the second part of the second transmission.
  • a better time diversity gain can be obtained compared to a transmission mode that simply uses frequency hopping between time slots. If the frequency hopping between time slots is adopted, the frequency domain resource f1 is used for the first transmission, and the frequency domain resource f2 is used for the second transmission, that is, the frequency domain resource f2 is used for the first part and the second part. It can be seen from the above that when using the hybrid frequency hopping transmission mode of inter-slot frequency hopping and repeated intra-frequency hopping, the frequency resource f1 is used at a certain interval in time, so that better time diversity gain can be obtained.
  • the hybrid frequency hopping mode of frequency hopping within the time slot and frequency hopping between repetitions can make the frequency domain resources used between adjacent repetitive transmissions partly or completely different, and multiple frequency domain resources are used in the time slot, thereby increasing the frequency diversity gain. Examples of mixed frequency hopping methods of frequency hopping within a time slot and frequency hopping between repetitions can also be seen in Figure 16 (A) and Figure 16 (B).
  • the mixed frequency hopping method of frequency hopping within the time slot and frequency hopping within the repetition can ensure that the time slot exists, and the frequency domain resources used in one repetition are not completely the same.
  • a mixed frequency hopping method of frequency hopping in the time slot and repeated frequency hopping see Figure 16 (E).
  • the first transmission is 3 symbols use frequency domain resources of frequency f1
  • the last 4 symbols of the first transmission use frequency domain resources of frequency f2
  • the first 3 symbols of the second transmission use frequency domain resources of frequency f2
  • the second transmission The last 4 symbols use frequency domain resources of frequency f1.
  • the mixed frequency hopping method of frequency hopping in the time slot and repeated frequency hopping see Figure 16 (F).
  • each transmission of 7 symbols for example, the two transmissions are in the same
  • the first 3 symbols of the first transmission use the frequency domain resource of frequency f4
  • the last 4 symbols of the first transmission use the frequency domain resource of frequency f3
  • the second slot which is before the second transmission
  • the 3 symbols use frequency domain resources of frequency f2
  • the last 4 symbols of the second transmission use frequency domain resources of frequency f1.
  • the first indication information is carried in RRC signaling
  • the third indication information is carried in DCI
  • the bit length of the first indication information is 1 bit
  • the bit length of the third indication information is 2 bits
  • the first indication information The 1 bit of is used to indicate whether to perform frequency hopping
  • the 2 bits occupied by the third indication information are used to indicate 4 frequency hopping transmission modes.
  • the bit length of the first indication information is 2 bits
  • the bit length of the third indication information is 1 bit
  • 1 bit of the third indication information is used to indicate whether to perform frequency hopping
  • the second indication information occupies 2 bits.
  • Bits are used to indicate 4 frequency hopping transmission methods.
  • the four frequency hopping transmission modes may include frequency hopping within a time slot, frequency hopping between time slots, frequency hopping between repetitions, and frequency hopping between repetitions.
  • the upstream transmission is taken as an example, and the downstream transmission is similar to the upstream transmission, and will not be repeated.
  • the method flow may include steps S1701-S1706.
  • the method flow includes:
  • S1701 The network device sends first indication information to the terminal device.
  • the terminal device receives the first indication information from the network device.
  • the first indication information indicates a first frequency hopping transmission mode set, and the first frequency hopping transmission mode set is one frequency hopping transmission mode set among N frequency hopping transmission mode sets.
  • S1701 please refer to S701, which will not be repeated here.
  • S1702 The network device sends fourth indication information to the terminal device.
  • the terminal device receives the fourth instruction information from the network device.
  • the fourth indication information indicates a first frequency hopping transmission mode subset in the first frequency hopping transmission mode set
  • the first frequency hopping transmission mode subset is that the first frequency hopping transmission mode set includes A frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets, each frequency hopping transmission mode subset in the M frequency hopping transmission mode subsets includes at least one frequency hopping transmission mode, and M is greater than 1. The integer.
  • the network device sends second indication information to the terminal device.
  • the terminal device receives the second indication information from the network device.
  • the second indication information indicates the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data.
  • the second indication information refers to S702, which will not be repeated here.
  • the network device determines a first frequency hopping transmission mode from the subset of the first frequency hopping transmission mode according to the first time-frequency resource and the number of repeated transmissions of the first data.
  • the terminal device determines a first frequency hopping transmission mode from the subset of the first frequency hopping transmission mode according to the first time-frequency resource and the number of repeated transmissions of the first data.
  • the terminal device uses the first frequency hopping transmission mode to send the first data to the network device; correspondingly, the network device uses the first frequency hopping transmission mode to receive the first data from the terminal device.
  • the network device uses the first frequency hopping transmission mode to send the first data to the terminal device; correspondingly, the terminal device uses the first frequency hopping transmission mode to receive the first data from the network device.
  • the second indication information and the fourth indication information may both be carried in the DCI.
  • S1702 and S1703 may be combined into one step, that is, the network device sends the DCI to the terminal device, and the DCI carries the second indication information And the fourth instruction information.
  • the frequency hopping transmission mode used is determined through the first indication information, the second indication information, and the fourth indication information, that is, the OneRepPerSlot scenario and the MultiRepsPerSlot scenario are added on the basis of the RRC and DCI indications. Judge to determine the frequency hopping transmission mode used.
  • the second mapping relationship may be pre-defined through a protocol, or the network device may configure the second mapping relationship to the terminal device through signaling, and determine all the data from the first frequency hopping transmission mode subset.
  • the first frequency hopping transmission mode is described, it is implemented in the following manner:
  • the first frequency hopping transmission mode is determined from the first frequency hopping transmission mode subset according to the number of transmissions of the first data in the first time unit and the second mapping relationship.
  • the second mapping relationship may include: in the OneRepPerSlot scenario, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode subset; and in the MultiRepsPerSlot scenario, the corresponding frequency hopping transmission mode in the first frequency hopping transmission mode subset .
  • the first frequency hopping transmission mode subset includes inter-repetition+inter-slot hybrid frequency hopping mode and inter-slot frequency hopping, OneRepPerSlot scenario, corresponding to inter-slot frequency hopping, MultiRepsPerSlot scenario, corresponding to inter-repetition+inter- Hybrid frequency hopping method of slot.
  • the frequency hopping transmission mode used in the OneRepPerSlot scenario may include a mix of intra-slot frequency hopping, inter-slot frequency hopping, intra-repetition frequency hopping, inter-repetition frequency hopping, inter-slot frequency hopping, and inter-repetition frequency hopping.
  • the frequency hopping transmission mode used in the MultiRepsPerSlot scenario can include mixed frequency hopping transmission modes of inter-repeat frequency hopping, inter-slot frequency hopping, inter-slot frequency hopping and inter-repetition frequency hopping, intra-slot frequency hopping and inter-repetition frequency hopping
  • the subset can include two frequency hopping transmission modes.
  • One of the frequency hopping transmission modes is any of the frequency hopping transmission modes that can be used in the OneRepPerSlot scenario described above, and the other frequency hopping transmission mode is the above description Any of the frequency hopping transmission modes used in the MultiRepsPerSlot scenario.
  • the bit length of the first indication information and the bit length of the fourth indication information are both 1 bit, combined with the OneRepPerSlot scenario or the MultiRepsPerSlot scenario determined according to the second indication information, up to 8 frequency hopping transmission modes can be indicated.
  • the value of the first indication information is 1, indicating set 2.
  • Set 2 includes two subsets, namely subset 1 and subset 2, and subset 1 includes inter-repetition and intra-slot.
  • Subset 2 includes inter-repetition+inter-slot hybrid frequency hopping mode and inter-slot frequency hopping.
  • subset 1 for the OneRepPerSlot scenario, the intra-slot frequency hopping transmission mode is adopted; for the MultiRepsPerSlot scenario, the inter-repetition frequency hopping transmission mode is adopted. In subset 2, for the OneRepPerSlot scenario, the inter-slot frequency hopping transmission mode is adopted; for the MultiRepsPerSlot scenario, the inter-repetition+inter-slot hybrid frequency hopping mode is adopted.
  • the frequency hopping transmission mode subset may also include only one frequency hopping transmission mode.
  • this frequency hopping transmission mode may be adopted.
  • the frequency hopping corresponding to the MultiRepsPerSlot scenario and the OneRepPerSlot scenario The transmission mode is inter-slot frequency hopping.
  • the indicated frequency hopping transmission mode is disabled, that is, a non-frequency hopping transmission mode.
  • the frequency hopping transmission mode is inter-slot frequency hopping
  • the frequency hopping transmission mode is inter- Slot+inter-repetition is a hybrid frequency hopping method of inter-slot frequency hopping and inter-repetition frequency hopping.
  • the frequency hopping transmission mode is intra-slot frequency hopping
  • the network device and the terminal device include hardware structures and/or software modules corresponding to each function.
  • this application can be implemented in the form of computer software, 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 scenarios and design constraints of the technical solution.
  • the communication device may be either the terminal device 130 or the terminal device 140 as shown in FIG. 1, or it may be the network device as shown in FIG. 1, or it may be applied to terminal equipment. Or a module of a network device (such as a chip).
  • the communication device 1800 includes a processing unit 1810 and a transceiving unit 1820.
  • the communication device 1800 is configured to implement the function of the terminal device or the network device in the method embodiment shown in FIG. 7, FIG. 15 or FIG. 17.
  • the transceiver unit 1820 may be used to receive instruction information from the network device (for example, the first instruction, the second instruction information, the third instruction information, or the Fourth indication information); the processing unit 1810 is configured to determine the first frequency hopping transmission mode according to the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data, so that the transceiver unit 1820 can use the first Frequency hopping transmission mode sends data to or receives data from network devices.
  • instruction information from the network device for example, the first instruction, the second instruction information, the third instruction information, or the Fourth indication information
  • the processing unit 1810 is configured to determine the first frequency hopping transmission mode according to the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data, so that the transceiver unit 1820 can use the first Frequency hopping transmission mode sends data to or receives data from network devices.
  • the transceiver unit 1820 is used to send instruction information (for example, first instruction information, second instruction information, third instruction information, or Fourth indication information); the processing unit 1810 is configured to determine the first frequency hopping transmission mode according to the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data, so that the transceiver unit 1820 can use the first Frequency hopping transmission mode receives data from terminal equipment or sends data to terminal equipment.
  • instruction information for example, first instruction information, second instruction information, third instruction information, or Fourth indication information
  • the processing unit 1810 is configured to determine the first frequency hopping transmission mode according to the first time-frequency resource used to transmit the first data and the number of repeated transmissions of the first data, so that the transceiver unit 1820 can use the first Frequency hopping transmission mode receives data from terminal equipment or sends data to terminal equipment.
  • processing unit 1810 and the transceiver unit 1820 can be obtained directly by referring to the relevant descriptions in the above method embodiments, and will not be repeated here.
  • the communication device 1900 includes a processor 1910 and an interface circuit 1920.
  • the processor 1910 and the interface circuit 1920 are coupled with each other.
  • the interface circuit 1920 may be a transceiver or an input/output interface.
  • the communication device 1900 may further include a memory 1930 for storing instructions executed by the processor 1910 or storing input data required by the processor 1910 to run the instructions or storing data generated after the processor 1910 runs the instructions.
  • the processor 1910 is used to perform the function of the foregoing processing unit 1810
  • the interface circuit 1920 is used to perform the function of the foregoing transceiver unit 1820.
  • the terminal device chip When the foregoing communication device is a chip applied to a terminal device, the terminal device chip implements the function of the terminal device in the foregoing method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or, the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna).
  • the antenna sends information, which is sent from the terminal device to the network device.
  • the network device chip implements the function of the network device in the foregoing method embodiment.
  • the network device chip receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent by the terminal device to the network device; or, the network device chip sends information to other modules in the network device (such as radio frequency modules or antennas).
  • the antenna sends information, which is sent by the network device to the terminal device.
  • this application also provides a schematic structural diagram of a network device (for example, a base station).
  • the base station may be applied to the scenario of the communication system shown in FIG. 1, and the base station may be the network device in the foregoing method embodiment.
  • the base station 2000 may include one or more radio frequency units, such as a remote radio unit (RRU) 2001 and one or more baseband units (BBU) 2002.
  • the RRU 2001 may be a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include a radio frequency unit 20012.
  • the RRU 2001 may also include at least one antenna 20011.
  • the RRU2001 can be used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals.
  • the BBU2002 part can be used for baseband processing, control of base stations, etc.
  • the RRU2001 and BBU2002 may be integrated in one device, or two independent devices, namely distributed base stations.
  • the BBU2002 is the control center of the base station, and can also be called a processing unit, which is used to perform baseband processing functions, such as channel coding and decoding, multiplexing and demultiplexing, modulation and demodulation, etc.
  • the BBU 2002 can be composed of one or more single boards, and multiple single boards can jointly support wireless access networks of a single access standard, or can respectively support wireless access networks of different access standards. Support multiple wireless access networks with different access standards at the same time.
  • the BBU 2002 may also include a memory 20021 and a processor 20022.
  • the memory 20021 is used to store necessary instructions and/or data.
  • the processor 20022 is used to control the base station to perform necessary actions.
  • the terminal device 2100 may include a processor 2102, a memory, a transceiver control unit 2101, and optionally, an antenna and/or an input/output device.
  • the processor can be used to process communication protocols and communication data, control user equipment, and execute software programs.
  • the memory can store software programs and/or data.
  • the transceiver control unit can be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the transceiver control unit 2101 and the antenna together can also be called a transceiver, which can be used to transmit and receive radio frequency signals.
  • Input and output devices such as touch screens, display screens, keyboards, etc., can be used to receive data input by users and output data to users.
  • the processor in the embodiment of the present application may be a central processing unit (CPU), other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits. (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the method steps in the embodiments of the present application can be implemented by hardware, or can be implemented by a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (programmable ROM) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or well-known in the art Any other form of storage medium.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can 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 or terminal device.
  • the processor and the storage medium may also exist as discrete components in the access network device or terminal device.
  • the above embodiments it 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 programs or instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium, or transmitted through the computer-readable storage medium.
  • 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 integrating one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (SSD).
  • “at least one” refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are an “or” relationship; in the formula of this application, the character “/” indicates that the associated objects before and after are a kind of "division” Relationship.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif de transmission de données qui peuvent déterminer un schéma de transmission à sauts de fréquence approprié. La présente invention porte sur trois solutions réalisables à titre d'exemple pouvant indiquer un schéma de transmission à sauts de fréquence approprié pour une transmission de données. La première solution réalisable comprend l'utilisation d'une signalisation de commande de ressources radio (RRC) pour déterminer un ensemble parmi de multiples ensembles de schémas de transmission à sauts de fréquence en combinaison avec un nombre de transmissions répétées de données dans un intervalle de temps afin de déterminer quel schéma de transmission à sauts de fréquence doit être utilisé pour la transmission de données. La deuxième solution réalisable comprend l'utilisation d'une signalisation de RRC pour déterminer un ensemble parmi de multiples ensembles de schémas de transmission à sauts de fréquence et la prise en considération d'informations de commande de liaison descendante (DCI) afin de déterminer, à partir de l'ensemble déterminé, quel schéma de transmission à sauts de fréquence doit être utilisé pour la transmission de données. La troisième solution réalisable comprend l'utilisation d'une signalisation de RRC pour déterminer un ensemble parmi de multiples ensembles de schémas de transmission à sauts de fréquence et l'utilisation de DCI pour déterminer un sous-ensemble à partir de l'ensemble déterminé, puis la détermination du schéma de transmission à sauts de fréquence qui doit être utilisé pour la transmission de données en fonction d'un nombre de transmissions répétées de données dans un intervalle de temps.
PCT/CN2020/108498 2019-08-16 2020-08-11 Procédé et dispositif de transmission de données WO2021031939A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910760309.3A CN112449420A (zh) 2019-08-16 2019-08-16 一种数据传输方法及装置
CN201910760309.3 2019-08-16

Publications (1)

Publication Number Publication Date
WO2021031939A1 true WO2021031939A1 (fr) 2021-02-25

Family

ID=74659866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/108498 WO2021031939A1 (fr) 2019-08-16 2020-08-11 Procédé et dispositif de transmission de données

Country Status (2)

Country Link
CN (1) CN112449420A (fr)
WO (1) WO2021031939A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115118305A (zh) * 2021-03-19 2022-09-27 华为技术有限公司 一种数据传输方法及装置
US20230055114A1 (en) * 2021-08-17 2023-02-23 Qualcomm Incorporated Techniques to facilitate phase jump estimation for sidelink dmrs bundling
US12074732B2 (en) 2023-04-25 2024-08-27 Qualcomm Incorporated Techniques to facilitate phase jump estimation for sidelink DMRS bundling

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115173889B (zh) * 2021-03-18 2024-04-12 维沃移动通信有限公司 跳频处理方法、装置及终端
CN116055018B (zh) * 2021-04-02 2023-09-29 华为技术有限公司 一种物理上行控制信道的发送方法、接收方法及通信装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016019552A1 (fr) * 2014-08-07 2016-02-11 华为技术有限公司 Procédé, dispositif et système de transmission de données
WO2016192048A1 (fr) * 2015-06-03 2016-12-08 华为技术有限公司 Procédé et dispositif de configuration de ressources de domaine fréquentiel
US20190029030A1 (en) * 2016-11-29 2019-01-24 Telefonaktiebolaget Lm Ericsson (Publ) Uplink hopping pattern for contention-based reliable communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016019552A1 (fr) * 2014-08-07 2016-02-11 华为技术有限公司 Procédé, dispositif et système de transmission de données
WO2016192048A1 (fr) * 2015-06-03 2016-12-08 华为技术有限公司 Procédé et dispositif de configuration de ressources de domaine fréquentiel
US20190029030A1 (en) * 2016-11-29 2019-01-24 Telefonaktiebolaget Lm Ericsson (Publ) Uplink hopping pattern for contention-based reliable communication

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
VIVO: "PUSCH enhancements for URLLC", 3GPP TSG RAN WG1 #97; R1-1906148, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 13 May 2019 (2019-05-13), Reno, USA; 20190513 - 20190517, XP051727604 *
ZTE: "Enhancement for UL grant-free transmissions", 3GPP TSG RAN WG1 MEETING #94BIS; R1-1810347, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 29 September 2008 (2008-09-29), Chengdu, China; 20181008 - 20181012, XP051517757 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115118305A (zh) * 2021-03-19 2022-09-27 华为技术有限公司 一种数据传输方法及装置
US20230055114A1 (en) * 2021-08-17 2023-02-23 Qualcomm Incorporated Techniques to facilitate phase jump estimation for sidelink dmrs bundling
US11646912B2 (en) * 2021-08-17 2023-05-09 Qualcomm Incorporated Techniques to facilitate phase jump estimation for sidelink DMRS bundling
US12074732B2 (en) 2023-04-25 2024-08-27 Qualcomm Incorporated Techniques to facilitate phase jump estimation for sidelink DMRS bundling

Also Published As

Publication number Publication date
CN112449420A (zh) 2021-03-05

Similar Documents

Publication Publication Date Title
WO2021031939A1 (fr) Procédé et dispositif de transmission de données
CN110035550B (zh) 上行控制信息传输方法和通信装置
JP7319363B2 (ja) データ伝送方法及び通信装置
WO2018202163A1 (fr) Procédé et dispositif d'indication de ressource
WO2020221321A1 (fr) Procédé de communication et appareil de communication
WO2020233420A1 (fr) Procédé d'indication de format d'intervalle et appareil de communication
WO2019095940A1 (fr) Procédé d'indication de ressource de domaine temporel dans un réseau relais, dispositif de réseau et équipement utilisateur
CN110351032B (zh) 资源配置方法及装置
WO2019029741A1 (fr) Procédé et appareil de communication sans fil
WO2021008416A1 (fr) Procédé et appareil de détermination d'attribution de ressources
WO2020199790A1 (fr) Procédé d'indication d'informations et appareil de communication
CN112399586A (zh) 配置时域资源的方法和装置
WO2021147214A1 (fr) Procédé de communication et appareil de communication
CN112399564A (zh) 一种侧行链路通信方法及装置
WO2021228130A1 (fr) Procédé de configuration de ressources pour un signal de diffusion, et dispositif associé
WO2021208768A1 (fr) Procédé et appareil de transmission de données
WO2021056441A1 (fr) Procédé et appareil de transmission d'agrégation de données de liaison descendante multiutilisateur
WO2018228221A1 (fr) Procédé et appareil de transmission d'informations
WO2021248949A1 (fr) Procédé de communication et dispositif de communication
US20240204951A1 (en) Communication method and communication apparatus
WO2021043059A1 (fr) Procédé et dispositif d'accès aléatoire
CN111602457A (zh) 信息传输方法、通信装置及存储介质
WO2023098478A1 (fr) Procédé d'indication de ressources et appareil de communication
WO2018228208A1 (fr) Procédé de communication, station de base et dispositif terminal
WO2021008335A1 (fr) Procédé de communication et appareil de communication

Legal Events

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

Ref document number: 20854673

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20854673

Country of ref document: EP

Kind code of ref document: A1