Data transmission method and device, and storage medium

Abstract

The present disclosure provides a data transmission method, device, and storage medium, and relates to the field of wireless communication technology. The data transmission method is executed by a terminal device, including: receiving downlink control information transmitted by a physical downlink control channel, the downlink control information including data format indication information and downlink service data; demodulating and reading the downlink service data according to the data format indication information, without demodulating the physical downlink control channel, thereby shortening the transmission time while ensuring the high reliability of URLLC.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a data transmission method and device, and a storage medium. Background Art

[0002] In the 3GPP specification, Ultra-reliable and Low Latency Communications (URLLC) uses mini-slots, uplink scheduling-free, downlink resource preemption, specific coding technology, etc. to achieve ultra-high reliability and ultra-low latency data transmission. The air interface one-way delay requirement of URLLC in the 3GPP specification cannot be greater than 0.5ms.

[0003] When URLLC transmits data downlink, the terminal first receives the scheduling information of the downlink control information DCI in the physical downlink control channel (PDCCH), and demodulates the data at the corresponding physical downlink shared channel (PDSCH) according to the scheduling information. The process of reading PDSCH data takes at least two symbols (Type B PDSCH). Under the existing standards, it is difficult to shorten the time for reading the scheduling information of the downlink control information DCI in the PDCCH and the PDSCH data. For services with higher air interface latency requirements, how to further improve to meet the needs of shorter latency services has become an urgent problem to be solved.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present disclosure is to provide a data transmission method and device, and a storage medium, which at least to a certain extent overcome the problem of how to further improve the terminal equipment of the related technology to meet the service demand of shorter latency.

[0006] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0007] According to one aspect of the present disclosure, there is provided a data transmission method, which is executed by a terminal device and is characterized in that it includes: receiving downlink control information transmitted by a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data; demodulating and reading the downlink service data according to the data format indication information.

[0008] In one embodiment of the present disclosure, the downlink control information also includes scheduling information, and the scheduling information and the data format indication information adopt the same channel coding and modulation method.

[0009] In one embodiment of the present disclosure, the method further includes: receiving downlink service data transmitted by a physical downlink shared channel.

[0010] In one embodiment of the present disclosure, the method also includes: determining whether demodulating according to the data format indication information and reading the downlink service data is successful; if demodulating according to the data format indication information and reading the downlink service data fails, demodulating according to the scheduling information and reading the downlink service data in the physical downlink shared channel.

[0011] In one embodiment of the present disclosure, the downlink service data adopts the 64QAM modulation method of eMBB.

[0012] In one embodiment of the present disclosure, the method further includes: sending channel quality information to the network device.

[0013] In one embodiment of the present disclosure, the terminal device is a URLLC terminal device.

[0014] According to one aspect of the present disclosure, there is provided a data transmission method, which is executed by a network device and includes: sending downlink control information in a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data.

[0015] In one embodiment of the present disclosure, the method further includes: sending the downlink service data in a physical downlink shared channel.

[0016] In one embodiment of the present disclosure, the method further includes: determining the number of cloud container engines corresponding to the downlink control information according to the data volume of the downlink business data; if the number of cloud container engines meets the requirement, sending the downlink business data carried in the downlink control information in the physical downlink control channel, and sending the downlink business data in the physical downlink shared channel; if the number of cloud container engines does not meet the requirement, sending the downlink business data in the physical downlink shared channel.

[0017] In one embodiment of the present disclosure, the method also includes: receiving channel quality information reported by a terminal device; and determining, based on the channel quality information, the channel coding and modulation method of the downlink service data sent by the physical downlink control channel and the downlink service data sent in the physical downlink shared channel.

[0018] According to one aspect of the present disclosure, there is provided a data transmission device, comprising: a transceiver unit, configured to receive downlink control information transmitted by a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data; and a processing unit, configured to demodulate according to the data format indication information and read the downlink service data.

[0019] According to one aspect of the present disclosure, there is provided a data transmission device, comprising: a transceiver unit sending downlink control information in a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data.

[0020] According to one aspect of the present disclosure, a communication device is provided, comprising: at least one processor; and at least one memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned data transmission methods by executing the executable instructions.

[0021] According to one aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, any one of the above-mentioned data transmission methods is implemented.

[0022] The present disclosure provides a data transmission method, device, and storage medium, and relates to the field of wireless communication technology. The data transmission method is executed by a terminal device, including: receiving downlink control information transmitted by a physical downlink control channel, the downlink control information including data format indication information and downlink service data; demodulating and reading the downlink service data according to the data format indication information, without demodulating the physical downlink control channel, thereby shortening the transmission time while ensuring the high reliability of URLLC.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0025] Figure 1 A schematic diagram of a communication system showing a data transmission method according to an embodiment of the present disclosure;

[0026] Figure 2 A schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure;

[0027] Figure 3 Another schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure;

[0028] Figure 4A Another schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure;

[0029] Figure 4B A schematic diagram showing downlink control information in an embodiment of the present disclosure;

[0030] Figure 4C A schematic diagram showing a data transmission method according to an embodiment of the present disclosure;

[0031] Figure 5 A schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure;

[0032] Figure 6 Another schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure;

[0033] Figure 7 is a schematic diagram of the structure of a data transmission device according to an embodiment of the present disclosure; and

[0034] Figure 8 It is a structural schematic diagram of another data transmission device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0037] The technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system, new radio (NR), etc. The technical solutions provided by the present disclosure can also be applied to future communication systems, such as the sixth generation mobile communication system. The communication system can also be a land public mobile communication network (PLMN) network, a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT) communication system or other communication systems.

[0038] The terminal equipment in the embodiments of the present disclosure may refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a relay station, a remote station, a remote terminal, a mobile device, a user terminal, a user equipment (UE), a terminal, a wireless communication device, a user agent or a user device. The terminal equipment may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future public land mobile network (PLMN) or a terminal device in a future Internet of Vehicles, etc., and the embodiments of the present disclosure are not limited to this.

[0039] The network device in the embodiment of the present disclosure may be any communication device with wireless transceiver function for communicating with the terminal device. The device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), home evolved Node B (HeNB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., and may also be a 5G system, such as a gNB in ​​an NR system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.

[0040] To facilitate understanding of the embodiments of the present disclosure, first Figure 1 The communication system shown in the figure is used as an example to describe in detail the communication system applicable to the embodiment of the present disclosure. Figure 1 A schematic diagram of a communication system of a data transmission method according to an embodiment of the present disclosure is shown. Figure 1 As shown, the communication system 100 includes four communication devices, for example, a network device 110 and terminal devices 121 to 123. The terminal devices 121 to 123 may all be terminal devices with simple capabilities, or the terminal devices 121 to 123 may include terminal devices with simple capabilities and traditional eMBB and URLLC terminal devices. When accessing the system, at least one of the terminal devices 121 to 123 may transmit data with the network device 110 using the data transmission method provided in the present disclosure.

[0041] It should be understood that Figure 1 The communication system shown may also include more network nodes, such as terminal devices or network devices. Figure 1 The network devices or terminal devices included in the communication system shown may be the network devices or terminal devices in various forms described above. The embodiments of the present disclosure are not shown one by one in the figures.

[0042] In the related art, Figure 2 A schematic diagram showing a data transmission method in the related art is shown as follows: Figure 2 As shown, in the 3GPP R16 specification, a new compact mode DCI 1_2 specifically for URLLC downlink service data scheduling is defined. During data transmission, the URLLC terminal first reads the DCI 1_2 transmitted in the PDCCH, and reads the URLLC service data at the corresponding time-frequency position of the PDSCH according to the DCI 1_2 instruction. This process can be completed within 3-14 symbol times. That is to say, in the relevant technical scheme, the base station first uses DCI1_2 scheduling information, and the terminal device demodulates the service in the PDSCH area according to the scheduling information. Taking FDD SCS=15KHz as an example, this scheme can basically meet the downlink delay requirement of 0.5ms, but the above scheme is difficult to meet the requirements for shorter delays.

[0043] In the disclosed embodiment, the newly added DCI 1_3 carries the scheduling information of the URLLC service data transmitted by the PDSCH and the service data transmitted in the DCI. During data transmission, the terminal only needs to correctly receive the newly added DCI 1_3 to complete the URLLC data service transmission, and does not need to demodulate the PDSCH, which shortens the transmission time while ensuring the high reliability of the URLLC.

[0044] At least one embodiment of the present disclosure provides a data transmission method, which is executed by a terminal device. Figure 3 A schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure is shown. Figure 3 As shown, the method includes steps S300 to S301.

[0045] S300. The terminal device receives downlink control information transmitted by a physical downlink control channel, where the downlink control information includes data format indication information and downlink service data.

[0046] S301. The terminal device demodulates and reads downlink service data according to data format indication information.

[0047] In an embodiment of the data transmission method disclosed in the present invention, a terminal device receives data format indication information and downlink service data transmitted by a physical downlink control channel, demodulates according to the data format indication information, and reads the downlink service data without demodulating the physical downlink control channel, thereby shortening the transmission time while ensuring the high reliability of URLLC.

[0048] At least one embodiment of the present disclosure provides a data transmission method. The method is performed by a terminal device, such as a URLLC terminal device. Figure 4A Another flow chart of the data transmission method in the embodiment of the present disclosure is shown. Figure 2 Based on the embodiment shown, Figure 4A As shown, the method includes steps S400 to S405.

[0049] S400: The terminal device sends channel quality information to the network device.

[0050] S401. The terminal device receives downlink control information transmitted by a physical downlink control channel. The downlink control information includes scheduling information, data format indication information and downlink service data.

[0051] The downlink control information also includes scheduling information, which is used to demodulate and read the downlink service data in the physical downlink shared channel. The scheduling information and the data format indication information use the same channel coding and modulation method. The downlink service data uses the eMBB 64QAM modulation method.

[0052] For example, the downlink control information DCI format is DCI 1_3, and the data format indication information can be data MCS format indication information, such as URLLC service data MCS format indication information. The downlink service data can be URLLC service data. DCI1_3 contains DCI 1_2 control information dedicated to downlink data scheduling of URLLC terminal equipment, URLLC service data MCS format indication information, and URLLC service data, wherein the DCI 1_2 control information and the URLLC service data MCS format indication use the same channel coding and debugging method, and the URLLC service data selects the appropriate MCS according to the CQI reported by the terminal, and is obtained by the URLLC service data MCS format indication. The terminal device can obtain the downlink service data of the downlink transmission by correctly demodulating DCI 1_3, and there is no need to demodulate the PDSCH.

[0053] S402: The terminal device demodulates and reads the downlink service data according to the data format indication information.

[0054] S403: The terminal device determines whether demodulation and reading of the downlink service data are successful according to the data format indication information.

[0055] If the terminal device demodulates according to the data format indication information and reads the downlink service data successfully, step S404 is executed; if the terminal device demodulates according to the data format indication information and fails to read the downlink service data, step S405 is executed.

[0056] S404, the procedure ends. In this case, the terminal device still receives the downlink service data transmitted by the physical downlink shared channel, but no longer demodulates and reads the downlink service data in the physical downlink shared channel according to the scheduling information.

[0057] S405. The terminal device receives downlink service data transmitted by the physical downlink shared channel, demodulates according to the scheduling information, and reads the downlink service data in the physical downlink shared channel.

[0058] Figure 4B A schematic diagram showing downlink control information in an embodiment of the present disclosure is shown. Figure 4B As shown, the downlink service data may be URLLC service data. When the terminal device receives the downlink control information DCI 1_3, it first demodulates and reads the scheduling information and the URLLC service data MCS format indication, and demodulates and reads the URLLC service data according to the URLLC service data MCS format indication. If the terminal device makes an error in demodulating the service data in DCI 1_3, for example, the URLLC service data cannot be correctly demodulated due to a bit error, the relevant URLLC service data is further demodulated at the corresponding PDSCH position according to the scheduling information.

[0059] Figure 4C A schematic diagram showing a data transmission method according to an embodiment of the present disclosure is shown. Figure 4C As shown, the downlink control information DCI 1_3 carries scheduling information, URLLC service data MCS format indication and service data. Since the service data is channel coded and modulated according to 3GPP 38.214Table 5.1.3.1-1, the reliability is lower than the URLLC-specific MCS. In order to ensure the high reliability of the downlink service data transmission method, the service data is repeatedly sent twice, once through the downlink control information DCI 1_3, and the second time through PDSCH. The scheduling information in the downlink control information DCI1_3 instructs the terminal device to demodulate the service data carried in the URLLC PDSCH.

[0060] In an embodiment of the data transmission method disclosed in the present invention, when transmitting small data, if the terminal device demodulates according to the data format indication information and reads the downlink service data successfully, it does not need to demodulate the physical downlink control channel; if the terminal device demodulates according to the data format indication information and fails to read the downlink service data, it demodulates according to the scheduling information and reads the downlink service data in the physical downlink shared channel. That is to say, in order to ensure the reliability of data transmission, secondary downlink service data transmission is performed in the PDSCH area, thereby shortening the transmission time while further ensuring the high reliability of URLLC.

[0061] At least one embodiment of the present disclosure provides a data transmission method, which is executed by a network device. Figure 5 A schematic diagram showing a flow chart of a data transmission method in an embodiment of the present disclosure is shown. Figure 5 As shown, the method includes step S500.

[0062] S500. The network device sends downlink control information in a physical downlink control channel. The downlink control information includes data format indication information and downlink service data.

[0063] In an embodiment of the data transmission method disclosed in the present invention, a network device sends downlink control information in a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data, so that a terminal device demodulates and reads the downlink service data according to the data format indication information without demodulating the physical downlink control channel, thereby shortening the transmission time while ensuring the high reliability of URLLC.

[0064] At least one embodiment of the present disclosure provides a data transmission method, which is executed by a network device. Figure 6 Another flow chart of the data transmission method in the embodiment of the present disclosure is shown. Figure 6 As shown, the method includes steps S600 to S606.

[0065] S600: The network device obtains downlink service data.

[0066] S601: A network device receives channel quality information reported by a terminal device.

[0067] S602: The network device determines, according to the channel quality information, the channel coding and modulation schemes of the downlink service data sent in the physical downlink control channel and the downlink service data sent in the physical downlink shared channel.

[0068] For example, in order to adapt to different wireless environment requirements and improve data transmission efficiency, the data field of DCI 1_3 needs to select the appropriate MCS Index according to the Channel Quality Indication (CQI) reported by the terminal. Since the 3GPP 38.214 specification defines multiple downlink MCS Tables, Table 5.1.3.1-1 is the 64QAM modulation mapping table for eMBB, and Table 5.1.3.1-3 is the 64QAM modulation mapping table for URLLC. Since the spectrum efficiency of the URLLC modulation mapping table is too low and the CCE resources of PDCCH are limited, this article selects Table 5.1.3.1-1 in the 3GPP 38.214 specification as the modulation mapping table for the DCI 1_3 data field.

[0069] S603: The network device determines the number of cloud container engines corresponding to the downlink control information to be sent according to the amount of downlink service data.

[0070] S604: The network device determines whether the number of cloud container engines meets the requirement.

[0071] If the number of cloud container engines meets the requirement, step S605 and step S606 are executed; if the number of cloud container engines does not meet the requirement, step S606 is executed.

[0072] S605: The network device sends the scheduling information, data format indication information and downlink service data carried in the downlink control information in the physical downlink control channel.

[0073] S606: The network device sends downlink service data in the physical downlink shared channel.

[0074] For example, the base station needs to send a downlink small data service to the URLLC terminal device in a certain time slot. The base station selects appropriate MCS levels for the service data transmitted by DCI 1_3 and the service data transmitted by PDSCH according to the channel quality reported by the terminal, and determines the number of cloud container engine CCEs (for example, 1, 2, 4, 8, 16, etc.) required to complete the DCI 1_3 transmission according to the amount of service data sent. If the number of CCEs allocated by the base station to the URLLC meets the requirements, DCI 1_3 is used for scheduling and transmission of service data. If the number of CCs allocated by the base station to the URLLC does not meet the requirements, DCI 1_2 is used for URLLC service data scheduling.

[0075] In an embodiment of the data transmission method disclosed in the present invention, when the network device determines whether the number of cloud container engines meets the requirements, it sends the scheduling information, data format indication information and downlink service data carried in the downlink control information in the physical downlink control channel, and sends the downlink service data in the physical downlink shared channel; when the number of cloud container engines does not meet the requirements, it only sends the downlink service data in the physical downlink shared channel, thereby further ensuring the high reliability of URLLC while shortening the transmission time.

[0076] It should be noted that the above Figure 5 and Figure 6 The data transmission method performed by the network device shown is Figure 2 The relevant steps and features of the data transmission method executed by the network device on the opposite side of the data transmission method executed by the terminal device shown in Figure 4 can be referenced to each other, and their technical principles and technical effects are similar, which will not be repeated here.

[0077] At least one embodiment of the present disclosure provides a data transmission device. Figure 7 FIG. 1 is a schematic diagram of the structure of a data transmission device according to an embodiment of the present disclosure. Figure 7 As shown, the device includes a processing unit and a transceiver unit. The transceiver unit is used to receive downlink control information transmitted by a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data; the processing unit is used to demodulate and read the downlink service data according to the data format indication information.

[0078] The apparatus 700 corresponds to the terminal device in the method embodiment. The apparatus 700 may be the terminal device in the method embodiment, or a chip or functional module inside the terminal device in the method embodiment. The corresponding units of the apparatus 700 are used to execute Figures 2 to 4C The corresponding steps in the method embodiment shown are executed by the terminal device.

[0079] The processing unit 710 in the apparatus 700 is used to execute the steps related to the processing corresponding to the terminal device in the method embodiment. For example, Figure 4A In step S402, the downlink service data is demodulated according to the data format indication information and read, and the execution Figure 4A In step S403, it is determined whether demodulation according to the data format indication information and reading of the downlink service data is successful.

[0080] The transceiver unit 720 in the apparatus 700 performs the steps of receiving and sending by the terminal device in the method embodiment. Figure 4A Step S401 of receiving downlink control information transmitted by a physical downlink control channel, executing Figure 4A Step S400 of sending channel quality information to the network device.

[0081] The processing unit 710 may be at least one processor. The transceiver unit 720 may be a transceiver or an interface circuit.

[0082] The transceiver unit 720 may be composed of a receiving unit and a sending unit, wherein the sending unit is used to perform the step of sending by the terminal device, for example, sending information to other devices; and the receiving unit is used to perform the step of receiving by the terminal device, for example, receiving information sent by other devices. The sending unit may be a transmitter or an interface circuit, and the receiving unit may be a receiver or an interface circuit.

[0083] The device 700 may also include a storage unit for storing data and / or signaling. The processing unit 710 and the transceiver unit 720 may interact or couple with the storage unit, for example, read or call the data and / or signaling in the storage unit so that the method of the above embodiment is executed.

[0084] The above units can exist independently or be fully or partially integrated.

[0085] At least one embodiment of the present disclosure provides a data transmission device. Figure 8 FIG. 1 is a schematic diagram of the structure of a data transmission device according to an embodiment of the present disclosure. Figure 8 As shown, the device includes a transceiver unit and a processing unit. The transceiver unit sends downlink control information in a physical downlink control channel, wherein the downlink control information includes data format indication information and downlink service data.

[0086] The apparatus 800 corresponds to the network device in the method embodiment. The apparatus 800 may be the network device in the method embodiment, or a chip or functional module inside the network device in the method embodiment. The corresponding units of the apparatus 800 are used to execute Figure 5 and Figure 6 The method embodiment shown is a corresponding step performed by a network device.

[0087] The processing unit 810 in the apparatus 800 is used to execute the steps related to the processing of the network device in the method embodiment. For example, Figure 6 In step S603, the number of cloud container engines corresponding to the downlink control information is determined according to the amount of downlink business data, and the execution Figure 6 In step S604, it is determined whether the number of cloud container engines meets the requirement.

[0088] The transceiver unit 820 in the apparatus 800 performs the steps of receiving and sending by the network device in the method embodiment. Figure 6 Step S605 of sending the scheduling information, data format indication information and downlink service data carried in the downlink control information in the physical downlink control channel, executing Figure 6 In the step S606 of sending the downlink service data in the physical downlink shared channel.

[0089] The processing unit 810 may be at least one processor. The transceiver unit 820 may be a transceiver or an interface circuit.

[0090] The transceiver unit 820 may be composed of a receiving unit and a sending unit, wherein the sending unit is used to perform the steps of sending by the network device, for example, sending information to other devices; and the receiving unit is used to perform the steps of receiving by the network device, for example, receiving information sent by other devices. The sending unit may be a transmitter or an interface circuit, and the receiving unit may be a receiver or an interface circuit.

[0091] The device 800 may also include a storage unit for storing data and / or signaling. The processing unit 810 and the transceiver unit 820 may interact or couple with the storage unit, for example, read or call the data and / or signaling in the storage unit so that the method of the above embodiment is executed.

[0092] The above units can exist independently or be fully or partially integrated.

[0093] At least one embodiment of the present disclosure provides a communication device. The communication device includes: at least one processor; and at least one memory for storing executable instructions of the processor; the processor is configured to execute the above-mentioned executable instructions by executing the executable instructions. Figures 3 to 4C ,or Figures 5 and 6The data transmission method of any one of the embodiments shown. For example, the communication device may be a terminal device or a network device.

[0094] At least one embodiment of the present disclosure provides a terminal device. The terminal device includes a processor and a memory. The memory is used to store executable instructions of the processor. The processor is configured to execute the above-mentioned Figures 3 to 4C A data transmission method according to any one of the embodiments shown.

[0095] The terminal device can be used for Figure 1 In the system shown. The terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is used to control the antenna and the input-output device to send and receive signals, the memory is used to store computer programs, the processor is used to call and run the computer program from the memory, and the radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.

[0096] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0097] At least one embodiment of the present disclosure provides a network device. The network device includes a processor and a memory. The memory is used to store executable instructions of the processor. The processor is configured to execute the above-mentioned Figures 5 and 6 A data transmission method according to any one of the embodiments shown.

[0098] It should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0099] It should also be understood that the above-mentioned memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0100] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function according to the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0101] The embodiment of the present disclosure also provides a communication system, which includes: the above-mentioned communication device, such as the above-mentioned terminal device and the above-mentioned network device, and the communication system also includes other communication devices. For example, the communication system includes NR-light terminal devices, non-NR-light terminal devices and access network devices.

[0102] The embodiment of the present disclosure also provides a computer readable medium for storing computer program code, wherein the computer program includes instructions for executing the data transmission method of the embodiment of the present disclosure in the above method. The readable medium may be a read-only memory (ROM) or a random access memory (RAM), which is not limited by the embodiment of the present disclosure.

[0103] The present disclosure also provides a computer-readable storage medium on which a computer program is stored, and a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present invention can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to cause the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of the present specification.

[0104] A program product for implementing the above method according to an embodiment of the present invention is described, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0105] The embodiment of the present disclosure also provides a system chip, which includes: a processing unit and a communication unit, the processing unit, for example, may be a processor, and the communication unit, for example, may be an input / output interface, a pin or a circuit, etc. The processing unit may execute computer instructions to enable the chip in the communication device to execute any one of the methods for transmitting initial access configuration information provided in the above-mentioned embodiment of the present disclosure.

[0106] For example, any communication device including a terminal device and a network device provided in the above-mentioned embodiments of the present disclosure may include the system chip.

[0107] For example, the computer instructions are stored in a storage unit.

[0108] For example, the storage unit is a storage unit within the chip, such as a register, a cache, etc. The storage unit can also be a storage unit located outside the chip within the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, RAM, etc. Among them, the processor mentioned in any of the above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the method for the above-mentioned main transmission initial access configuration information. The processing unit and the storage unit can be decoupled and respectively set on different physical devices, and connected by wired or wireless means to implement the respective functions of the processing unit and the storage unit to support the system chip to implement the various functions in the above-mentioned embodiments. Alternatively, the processing unit and the memory can also be coupled on the same device.

[0109] It is understood that the memory in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0110] The terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0111] The terms "uplink" and "downlink" appearing in the present disclosure are used to describe the direction of data / information transmission in specific scenarios. For example, the "uplink" direction generally refers to the direction of data / information transmission from the terminal to the network side, or the direction of data / information transmission from a distributed unit to a centralized unit, and the "downlink" direction generally refers to the direction of data / information transmission from the network side to the terminal, or the direction of data / information transmission from a centralized unit to a distributed unit. It can be understood that "uplink" and "downlink" are only used to describe the transmission direction of data / information, and the specific starting and ending devices of the data / information transmission are not limited.

[0112] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in the present disclosure are named. It can be understood that these specific names do not constitute a limitation on the relevant objects, and the assigned names may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in the present disclosure should be mainly determined from the functions and technical effects embodied / executed in the technical solutions.

[0113] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0114] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0115] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0116] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0118] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present disclosure. The aforementioned storage media include: USB flash drives, mobile hard disks, read-only memory (ROM), and random access.

[0119] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An ultra-high reliability and ultra-low latency communication (URLLC) data transmission method, executed by a terminal device, characterized in that: include: Receiving downlink control information transmitted by a physical downlink control channel, wherein the downlink control information includes data format indication information and URLLC downlink service data; Demodulating and reading the downlink service data according to the data format indication information; The downlink control information also includes scheduling information, and the scheduling information and the data format indication information adopt the same channel coding and modulation method.

2. The method according to claim 1, characterized in that The data format indication information is data MCS format indication information.

3. The method according to claim 2, characterized in that The method further comprises: Receive URLLC downlink service data transmitted by the physical downlink shared channel.

4. The method according to claim 3, characterized in that The method further comprises: Determine whether the demodulation according to the data format indication information and the reading of the URLLC downlink service data are successful, If demodulation according to the data format indication information and reading of the URLLC downlink service data fails, demodulation according to the scheduling information and reading of the URLLC downlink service data in the physical downlink shared channel.

5. The method according to claim 4, characterized in that The URLLC downlink service data adopts the 64QAM modulation method of eMBB.

6. The method according to claim 1, characterized in that The method further comprises: Send channel quality information to network devices.

7. The method according to claim 1, characterized in that The terminal device is a URLLC terminal device.

8. An ultra-high reliability and ultra-low latency communication (URLLC) data transmission method, characterized in that: Performed by network devices, including: Downlink control information is sent in a physical downlink control channel, wherein the downlink control information includes scheduling information, data format indication information and URLLC downlink service data, wherein the scheduling information and the data format indication information use the same channel coding and modulation method.

9. The method according to claim 8, characterized in that The data format indication information is data MCS format indication information, and the method further includes: The downlink service data is sent in a physical downlink shared channel.

10. The method according to claim 9, characterized in that The method further comprises: Determine the number of cloud container engines corresponding to sending the downlink control information according to the amount of the URLLC downlink service data, If the number of cloud container engines meets the requirement, the URLLC downlink service data carried in the downlink control information is sent in the physical downlink control channel, and the URLLC downlink service data is sent in the physical downlink shared channel; If the number of cloud container engines does not meet the requirement, the URLLC downlink service data is sent in the physical downlink shared channel.

11. The method according to claim 9, characterized in that The method further comprises: Receiving channel quality information reported by a terminal device; The channel coding and modulation methods of the URLLC downlink service data sent by the physical downlink control channel and the URLLC downlink service data sent in the physical downlink shared channel are determined respectively according to the channel quality information.

12. An ultra-high reliability and ultra-low latency communication (URLLC) data transmission device, characterized in that: include: A transceiver unit, configured to receive downlink control information transmitted by a physical downlink control channel, wherein the downlink control information includes scheduling information, data format indication information and URLLC downlink service data, and the scheduling information and the data format indication information use the same channel coding and modulation mode; A processing unit is used to demodulate and read the downlink service data according to the data format indication information.

13. An ultra-high reliability and ultra-low latency communication (URLLC) data transmission device, characterized in that: include: A transceiver unit is used to send downlink control information in a physical downlink control channel, wherein the downlink control information includes scheduling information, data format indication information and URLLC downlink service data, and the scheduling information and the data format indication information use the same channel coding and modulation method.

14. A communication device, characterized in that: include: at least one processor; as well as at least one memory for storing executable instructions of the processor; The processor is configured to execute the data transmission method of any one of claims 1 to 7 or 8 to 11 by executing the executable instructions.

15. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instruction is executed by a processor, the data transmission method according to any one of claims 1 to 7 or 8 to 11 is implemented.

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