A data transmission method, apparatus and readable storage medium

Abstract

The present application discloses a data transmission method, apparatus, and readable storage medium, relating to the field of communication technologies, for improving the reliability of data transmission. The method includes: a terminal preprocesses a data packet to be transmitted according to high-reliability transmission mode configuration information sent by a network device to obtain a physical layer transport block; when the terminal receives a high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical layer transport block on resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling; wherein the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode. Embodiments of the present application can improve the reliability of data transmission.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a data transmission method, apparatus, and readable storage medium. Background Art

[0002] In the industrial Internet, for some periodic deterministic communication services, in addition to traditional parameters such as transmission interval, message size, and delay, the service demand parameters also introduce survival time. Among them, the survival time is used to characterize the availability of the service.

[0003] The definition of the survival time is as follows: When a data transmission error occurs, the survival time is started, also known as entering the survival time state. If no more packets are lost within the validity period of the survival time, the device returns to the normal state, and the service transmission is considered to be available; if the survival time expires and the data still cannot be correctly transmitted, the transmission between the original device and the target device is considered to be unavailable.

[0004] Regarding service availability, the degree of QoS (Quality of Service) guarantee for all data packets mapped by a service, that is, the reliability guarantee of the air interface transmission is the same. That is, after the first data packet is lost, subsequent data packets may continue to be lost, resulting in the unavailability of the entire transmission link.

[0005] In the prior art, after a service is mapped to a DRB (Data Radio Bearer), scheduling and transmission are performed according to the corresponding QoS requirements (including reliability parameters). However, for services with high latency requirements and high survival time requirements, there is no mechanism in the prior art to ensure error-free transmission of subsequent data packets after entering the survival time state. Therefore, the reliability of data transmission may be low. Summary of the Invention

[0006] Embodiments of this application provide a data transmission method, apparatus, and readable storage medium to improve the reliability of data transmission.

[0007] In a first aspect, embodiments of this application provide a data transmission method, including:

[0008] The terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block;

[0009] When the terminal receives the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling;

[0010] Among them, the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode.

[0011] Among them, the high-reliability transmission mode configuration information includes:

[0012] Time-frequency domain resource occupancy information and modulation and coding scheme of the uplink resource, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time starting position in the time domain.

[0013] Among them, the configuration information further includes one or more of the following:

[0014] The first information is used to indicate the activation of PDCP (Packet Data Convergence Protocol) retransmission when PDCP retransmission is configured;

[0015] The second information is used to indicate, when PDCP retransmission is configured, information on the logical channels that can be activated during PDCP retransmission and / or information on the cells corresponding to the logical channels that can be activated;

[0016] The third information is used to indicate the activation of preconfigured resources;

[0017] The fourth information is used to indicate the activation of the first preconfigured resource among multiple preconfigured resources.

[0018] Among them, the terminal preprocesses the data packet to be transmitted according to the configuration information to obtain the physical layer transport block, including:

[0019] The terminal preprocesses the data packet to be transmitted according to the time-frequency domain resource occupancy information and modulation and coding scheme to obtain the physical layer transport block.

[0020] Among them, when the terminal receives the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling, including:

[0021] The terminal determines the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0022] The terminal maps the physical layer transport block to the corresponding physical layer resources for transmission according to the time starting point.

[0023] Among them, the terminal determines the time start point of the actually occupied resources for uplink transmission in the high-reliability transmission mode, including any one of the following steps:

[0024] The terminal adds the time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the time start point of the actually occupied resources for uplink transmission in the high-reliability transmission mode;

[0025] The terminal uses the time start point position for uplink transmission indicated in the high-reliability transmission mode activation signaling as the time start point of the actually occupied resources for uplink transmission in the high-reliability transmission mode.

[0026] Among them, the time offset value is the time offset between the time start point of the actually occupied resources for uplink transmission by the terminal in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods:

[0027] The time offset value is carried in the high-reliability transmission mode configuration information;

[0028] The time offset value is predefined in the protocol;

[0029] The time offset value is carried in the high-reliability transmission mode activation signaling.

[0030] Among them, the terminal maps the physical layer transport block to the corresponding physical layer resources for transmission according to the time start point, including any one of the following:

[0031] Transmit at the time-frequency domain resource position designated for the current cell;

[0032] In the case of PDCP retransmission configured, transmit at the time-frequency domain resource position of the cell corresponding to the activated logical channel;

[0033] Transmit on the activated first preconfigured resource.

[0034] Among them, the high-reliability transmission mode activation signaling includes a PDCCH (Physical downlink control channel) command or a HARQ (Hybrid automatic repeat request) NACK (Negative Acknowledgement) command;

[0035] Wherein, when the high-reliability transmission mode activation signaling is a PDCCH command, a specified field of the downlink control information DCI carried in the PDCCH command is a preset value.

[0036] Wherein, after the terminal receives the high-reliability transmission mode configuration information sent by the network device, the method further includes:

[0037] The terminal processes the data packet to be transmitted by using a processing method corresponding to a second pre-configured resource;

[0038] After the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block, the method further includes:

[0039] When the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal uses the second pre-configured resource to transmit the processed data packet to be transmitted and discards the physical layer transport block corresponding to the high-reliability transmission mode;

[0040] Configuration information corresponding to the second pre-configured resource is different from the high-reliability transmission mode configuration information.

[0041] Wherein, the data packet to be transmitted is a retransmitted data packet or a new data packet.

[0042] In a second aspect, an embodiment of the present application provides a data transmission method, including:

[0043] The network device sends high-reliability transmission mode configuration information to the terminal;

[0044] The network device sends a high-reliability transmission mode activation signaling to the terminal, wherein the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0045] Wherein, the high-reliability transmission mode configuration information includes:

[0046] Time-frequency domain resource occupancy information and modulation and coding mode of the uplink resource, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time domain starting position.

[0047] Wherein, the high-reliability transmission mode configuration information further includes:

[0048] A time offset value, where the time offset value is the time offset between the time starting point of the resource actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling.

[0049] Wherein, the configuration information further includes one or more of the following:

[0050] The first piece of information is used to indicate the activation of PDCP retransmission when PDCP retransmission is configured.

[0051] The second piece of information is used to indicate, when PDCP retransmission is configured, information about logical channels that can be activated and / or cells corresponding to the logical channels that can be activated during PDCP retransmission.

[0052] The third piece of information is used to indicate the activation of preconfigured resources.

[0053] The fourth piece of information is used to indicate the activation of a first preconfigured resource among multiple preconfigured resources.

[0054] Wherein, the high-reliability transmission mode activation signaling includes a time offset value, and the time offset value is the time offset between the time start point of the resources actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling.

[0055] Wherein, the high-reliability transmission mode activation signaling includes a PDCCH command or a HARQ NACK command.

[0056] Wherein, when the high-reliability transmission mode activation signaling is a PDCCH command, the designated field of the DCI carried by the PDCCH command is a preset value.

[0057] Wherein, the method further includes:

[0058] The network device receives a data packet transmitted by the terminal in the high-reliability transmission mode, and the data packet is a retransmitted data packet or a new data packet.

[0059] Wherein, the network device sending the high-reliability transmission mode activation signaling to the terminal includes:

[0060] When it is determined that an error occurs in uplink transmission, the network device sends the high-reliability transmission mode activation signaling to the terminal.

[0061] In a third aspect, an embodiment of the present application further provides a data transmission device, which is applied to a terminal and includes a memory, a transceiver, and a processor:

[0062] The memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:

[0063] Preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block.

[0064] In the case of receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling;

[0065] Wherein, the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode.

[0066] Wherein, the high-reliability transmission mode configuration information includes:

[0067] Time-frequency domain resource occupancy information and modulation and coding scheme of the uplink resource, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time domain starting position.

[0068] Wherein, the configuration information further includes one or more of the following:

[0069] The first information is used to instruct to activate PDCP retransmission in the case where packet data convergence protocol (PDCP) retransmission is configured;

[0070] The second information is used to instruct, in the case where PDCP retransmission is configured, information of the logical channels that can be activated and / or information of the cells corresponding to the logical channels that can be activated during PDCP retransmission;

[0071] The third information is used to instruct to activate preconfigured resources;

[0072] The fourth information is used to instruct to activate the first preconfigured resource among multiple preconfigured resources.

[0073] Wherein, the processor is configured to read the computer program in the memory and perform the following operations:

[0074] Preprocess the data packet to be transmitted according to the time-frequency domain resource occupancy information and modulation and coding scheme to obtain the physical layer transport block.

[0075] Wherein, the processor is configured to read the computer program in the memory and perform the following operations:

[0076] Determine the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0077] Map the physical layer transport block to the corresponding physical layer resources for transmission according to the time starting point.

[0078] Wherein, the processor is configured to read the computer program in the memory and perform the following operations:

[0079] Add the time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the starting time of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0080] Use the starting time position of the uplink transmission in the high-reliability transmission mode indicated in the high-reliability transmission mode activation signaling as the starting time of the resources actually occupied for uplink transmission in the high-reliability transmission mode.

[0081] Wherein, the time offset value is the time offset between the starting time of the resources actually occupied for uplink transmission by the terminal in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods:

[0082] The time offset value is carried in the high-reliability transmission mode configuration information;

[0083] The time offset value is predefined in the protocol;

[0084] The time offset value is carried in the high-reliability transmission mode activation signaling.

[0085] Wherein, the processor is used to read the computer program in the memory and perform the following operations:

[0086] Transmit at the time-frequency resource position designated for the current cell;

[0087] In the case where PDCP retransmission is configured, transmit at the time-frequency resource position of the cell corresponding to the activated logical channel;

[0088] Transmit on the activated first preconfigured resource.

[0089] Wherein, the high-reliability transmission mode activation signaling includes a PDCCH command or a HARQ NACK command;

[0090] Wherein, in the case where the high-reliability transmission mode activation signaling is a PDCCH command, the designated field of the downlink control information DCI carried by the PDCCH command is a preset value.

[0091] Wherein, the processor is used to read the computer program in the memory and perform the following operations:

[0092] Process the data packet to be transmitted by using the processing method corresponding to the second preconfigured resource;

[0093] In the case that the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal uses the second pre-configured resource to transmit the processed data packet to be transmitted, and discards the physical layer transmission block corresponding to the high-reliability transmission mode;

[0094] The configuration information corresponding to the second pre-configured resource is different from the high-reliability transmission mode configuration information.

[0095] Fourthly, an embodiment of the present application further provides a data transmission device, which is applied to a network device and includes a memory, a transceiver, and a processor:

[0096] The memory is used to store computer programs; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer programs in the memory and perform the following operations:

[0097] Send high-reliability transmission mode configuration information to the terminal;

[0098] Send a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0099] Wherein, the processor is used to read the computer programs in the memory and perform the following operations:

[0100] Receive the data packet transmitted by the terminal in the high-reliability transmission mode, where the data packet is a retransmitted data packet or a new data packet.

[0101] Wherein, the processor is used to read the computer programs in the memory and perform the following operations:

[0102] In the case of determining that an uplink transmission error occurs, send a high-reliability transmission mode activation signaling to the terminal.

[0103] Fifthly, an embodiment of the present application further provides a data transmission device, which is applied to a terminal and includes:

[0104] A first processing unit, configured to preprocess a data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transmission block;

[0105] A first transmission unit, configured to, in the case of receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transmission block on the resource corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling;

[0106] Wherein, the high-reliability transmission mode activation signaling is used to indicate that the terminal performs data transmission based on the high-reliability transmission mode.

[0107] In a sixth aspect, an embodiment of the present application further provides a data transmission device, which is applied to a network device, and is characterized in that

[0108] a first sending unit, configured to send high-reliability transmission mode configuration information to a terminal;

[0109] a second sending unit, configured to send a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0110] In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium storing a computer program for causing the processor to execute the method as described above.

[0111] In an embodiment of the present application, a terminal preprocesses a data packet to be transmitted according to high-reliability transmission mode configuration information sent by a network device to form a physical layer transport block, and transmits the physical layer transport block on a resource corresponding to the high-reliability transmission mode when receiving the high-reliability transmission mode activation signaling. Through the above process, the data to be transmitted can be transmitted through the resources of the high-reliability transmission mode, thereby improving the reliability of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0112] Figure 1 is one of the flowcharts of the data transmission method provided by an embodiment of the present application;

[0113] Figure 2 is a schematic diagram of data processing provided by an embodiment of the present application;

[0114] Figure 3 is a second flowchart of the data transmission method provided by an embodiment of the present application;

[0115] Figure 4 is a third flowchart of the data transmission method provided by an embodiment of the present application;

[0116] Figure 5 is a schematic diagram of data processing provided by an embodiment of the present application;

[0117] Figure 6 is a fourth flowchart of the data transmission method provided by an embodiment of the present application;

[0118] Figure 7 is a fifth flowchart of the data transmission method provided by an embodiment of the present application;

[0119] Figure 8 is a schematic diagram of data processing provided by an embodiment of the present application;

[0120] Figure 9It is the sixth flowchart of the data transmission method provided by the embodiment of the present application;

[0121] Figure 10 It is one of the structural diagrams of the data processing device provided by the embodiment of the present application;

[0122] Figure 11 It is the second structural diagram of the data processing device provided by the embodiment of the present application;

[0123] Figure 12 It is the third structural diagram of the data processing device provided by the embodiment of the present application;

[0124] Figure 13 It is the fourth structural diagram of the data processing device provided by the embodiment of the present application. Detailed implementation manners

[0125] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the front and rear associated objects.

[0126] In the embodiments of the present application, the term "a plurality of" means two or more, and other quantifiers are similar.

[0127] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0128] The embodiments of the present application provide a data transmission method, device and readable storage medium to improve the reliability of data transmission.

[0129] Among them, the method and the device are based on the same application concept. Since the principles for the method and the device to solve problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be elaborated.

[0130] Refer to Figure 1 , Figure 1 It is the flowchart of the data transmission method provided by the embodiment of the present application. As Figure 1 shown, it includes the following steps:

[0131] Step 101, the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block.

[0132] The terminal can receive the high-reliability transmission mode configuration information sent by the network device through RRC (Radio Resource Control) signaling. In the embodiments of this application, the high-reliability transmission mode configuration information includes: time-frequency domain resource occupancy information of uplink resources and modulation and coding schemes (such as MCS (Modulation and Coding Scheme)). The time-frequency domain resource occupancy information includes the time-frequency resource distribution information except for the time domain starting position, that is, it does not include the time domain starting position. Among them, the time-frequency domain resource occupancy information includes: the time domain resource width (such as how many symbols are occupied), the relative position of the time domain unit occupied within the time domain resource width, the frequency domain resource width, the subcarrier position within the frequency domain resource width, etc.

[0133] Optionally, the high-reliability transmission mode configuration information further includes at least one of the following information:

[0134] The first information is used to indicate the activation of PDCP duplication when PDCP duplication is configured.

[0135] The second information is used to indicate, when PDCP duplication is configured, the information of the logical channels (such as RLC (Radio Link Control) channels) that can be activated during PDCP duplication and / or the information of the cells corresponding to the logical channels that can be activated.

[0136] The third information is used to indicate the activation of pre-configured resources; the pre-configured resources can include multiple ones.

[0137] The fourth information is used to indicate the activation of the first pre-configured resource among multiple pre-configured resources, for example, the number of the first pre-configured resource, etc.

[0138] Optionally, the high-reliability transmission mode configuration information further includes a time offset value. The time offset value is the time offset between the time starting point of the resources actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling. The time offset value can also be carried by subsequent high-reliability transmission mode activation signaling, or through protocol agreements, etc.

[0139] Among them, the high-reliability transmission mode configuration information can be for the terminal, or for a specific logical channel, or for a DRB (Data Radio Bearer), or for HARQ retransmission.

[0140] In this step, the terminal preprocesses the data packet to be transmitted according to the time-frequency domain resource occupancy information and the modulation and coding scheme, to obtain the physical layer transport block. The data packet to be transmitted is a retransmitted data packet or a new data packet.

[0141] In an embodiment of the present application, the physical layer transport block can be represented as a time-frequency domain resource bit occupancy map. After determining the time domain starting point, the physical layer transport block can be directly mapped to a specific time-frequency resource position. That is to say, in an embodiment of the present application, the terminal forms a virtual time-frequency domain resource occupancy map according to the high-reliability transmission mode configuration information. When the time domain starting point is determined, this map is equivalent to finding an anchor point, and then it can be directly mapped and transmitted on specific physical resources.

[0142] Step 102: When the terminal receives the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling.

[0143] Among them, the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode. For example, it is used to activate the terminal to perform data transmission based on the high-reliability transmission mode. Among them, the high-reliability transmission mode can be understood as a transmission mode with higher reliability. For example, in the high-reliability transmission mode, the MCS corresponds to a lower bit error rate, etc.

[0144] Specifically, in this step, the terminal determines the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode, and maps the physical layer transport block to the corresponding physical layer resources for transmission according to the time starting point. Among them, the physical layer resources refer to the physical layer time-frequency domain resources.

[0145] Specifically, the time starting point can be determined by any of the following methods:

[0146] (1) The terminal adds a time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode.

[0147] Among them, the time offset value can be indicated by at least one of the following methods:

[0148] The time offset value is carried in the high-reliability transmission mode configuration information;

[0149] The time offset value is predefined in the protocol;

[0150] The time offset value is carried in the high-reliability transmission mode activation signaling.

[0151] In practical applications, when a time offset value is configured in both the high-reliability transmission mode configuration information and the high-reliability transmission mode activation signaling, the time offset value carried in the high-reliability transmission mode activation signaling shall prevail. Generally speaking, the value of the time offset is much smaller than the time interval between when the terminal receives a scheduling command and when it performs uplink transmission in the prior art.

[0152] Among them, the transmission time point can be understood as the start time point of the transmission of the high-reliability transmission mode activation signaling, or can be understood as the completion time point of the transmission of the high-reliability transmission mode activation signaling.

[0153] (2) The terminal uses the time start position for uplink transmission in the high-reliability transmission mode indicated in the high-reliability transmission mode activation signaling as the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode. That is to say, in this way, the high-reliability transmission mode activation signaling directly indicates the time start position for uplink transmission in the high-reliability transmission mode.

[0154] In the process of the terminal mapping the physical layer transport block to the corresponding physical layer resources for transmission according to the time start point, the terminal maps the physical layer transport block to the corresponding physical layer resources for transmission according to the time start point, including any one of the following:

[0155] Transmitting at the time-frequency domain resource position specified for the current cell;

[0156] In the case where PDCP retransmission is configured, transmitting at the time-frequency domain resource position of the cell corresponding to the activated logical channel;

[0157] Transmitting on the activated first pre-configured resource. In this way, after the first pre-configured resource is activated, transmission can be performed on the activated first pre-configured resource. The activated first pre-configured resource can be automatically deactivated after this transmission is completed, or can be deactivated according to the deactivation command sent by the network device.

[0158] In the embodiments of the present application, the high-reliability transmission mode activation signaling includes a PDCCH command or a HARQ NACK command.

[0159] Among them, when the high-reliability transmission mode activation signaling is a PDCCH command, the specified field of the DCI carried by the PDCCH command is a preset value. For example, the frequency domain resource assignment field of the DCI is all 0 or all 1. Optionally, the PDCCH command may indicate the starting position or time offset value of the uplink data transmission in the high-reliability transmission mode, and the starting position or time offset value may be indicated in the time domain resource assignment field of the DCI or in other determined fields.

[0160] Among them, when the high-reliability transmission mode activation signaling is a HARQ NACK command, the starting time of the resources actually occupied by the uplink transmission in the high-reliability transmission mode is the transmission time of the HARQ NACK plus the time offset value, and the time offset value may be configured by RRC signaling or may be stipulated by the protocol.

[0161] In the embodiment of the present application, the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to form a physical layer transport block, and transmits the physical layer transport block on the resources corresponding to the high-reliability transmission mode when receiving the high-reliability transmission mode activation signaling. Through the above process, the data to be transmitted can be transmitted through the resources of the high-reliability transmission mode, thereby improving the reliability of data transmission.

[0162] Optionally, on the basis of the above embodiments, after step 101, the method may further include:

[0163] The terminal processes the data packet to be transmitted by using the processing method corresponding to the second preconfigured resources. Then, when the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the processed data packet to be transmitted by using the second preconfigured resources and discards the physical layer transport block corresponding to the high-reliability transmission mode. Among them, the configuration information corresponding to the second preconfigured resources is different from the high-reliability transmission mode configuration information.

[0164] That is to say, if the terminal does not receive the high-reliability transmission mode activation signaling from the network device, then the terminal may transmit the data packet to be transmitted according to the scheduling of the network device or other preconfigured resources and discard the physical layer transport block formed according to the preprocessing method described above. It should be noted that in the above process, the data packet carried by the physical layer transport block is not discarded along with the preprocessed physical layer transport block.

[0165] For example, if there are other pre-configured resources, when a data packet can be transmitted on the pre-configured resources, the terminal organizes the data in the manner of the existing pre-configured resources. If there is no uplink transmission indicated by the high-reliability transmission mode activation signaling at the time of transmission of the pre-configured resources, that is, the high-reliability transmission mode activation signaling is not received, the terminal transmits the data in the manner of data transmission on the existing pre-configured resources and may discard the physical layer transport block of the high-reliability transmission mode formed for the data packet. That is, when a data packet arrives, the terminal can preprocess it according to the high-reliability transmission mode. At the same time, the terminal can also process it according to the indication of other pre-configured resources. These two processes can be parallel, and which uplink transmission is finally transmitted depends on whether the high-reliability transmission mode activation signaling is received.

[0166] See Figure 2 , when the data packet arrives, the terminal immediately preprocesses the data packet according to the high-reliability transmission mode configuration information (Trop1). When the pre-configured resource processing time boundary is reached, if the high-reliability transmission mode activation signaling is not received (for example, the high-reliability transmission mode activation signaling is not received when the boundary of Trop2 is reached), then the terminal organizes the data packet into the pre-configured resources for transmission according to the configuration of the pre-configured resources, and at the same time discards the physical layer transport block obtained after preprocessing according to the high-reliability transmission mode configuration information. Through this processing method, the reliable transmission of data can be further ensured.

[0167] See Figure 3 , Figure 3 is a flowchart of the data transmission method provided by the embodiment of the present application. As Figure 3 shown, it includes the following steps:

[0168] Step 301, the network device sends high-reliability transmission mode configuration information to the terminal.

[0169] In practical applications, the network device can send the high-reliability transmission mode configuration information to the terminal through RRC signaling. Wherein, the meaning of the high-reliability transmission mode configuration information is the same as that described in the foregoing embodiments.

[0170] Step 302, the network device sends a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0171] Optionally, after the network device receives the uplink transmission from the terminal, the network device may determine the accuracy of the terminal's uplink transmission, so as to determine whether to activate the high-reliability transmission mode. In the case where it is determined that an error has occurred in the uplink transmission, the network device sends a high-reliability transmission mode activation signaling to the terminal. The high-reliability transmission mode activation signaling includes a PDCCH command or a HARQ NACK command; wherein, when the high-reliability transmission mode activation signaling is a PDCCH command, the designated field of the DCI carried by the PDCCH command is a preset value.

[0172] In the embodiment of the present application, the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to form a physical layer transport block, and transmits the physical layer transport block on the resources corresponding to the high-reliability transmission mode when receiving the high-reliability transmission mode activation signaling. Through the above process, the data to be transmitted can be transmitted through the resources of the high-reliability transmission mode, thereby improving the reliability of data transmission.

[0173] Hereinafter, the specific implementation process of the embodiment of the present application will be described in combination with different embodiments, where the network device is taken as a base station as an example.

[0174] See Figure 4 , Figure 4 is a flowchart of the data transmission method of the embodiment of the present application, including:

[0175] Step 401, the base station configures the high-reliability transmission mode for the terminal by using RRC signaling, and sends the high-reliability transmission mode configuration information to the terminal. The configuration information may include:

[0176] (1) The time-frequency domain occupancy (frequency domain resource distribution, time domain length, etc.) and modulation and coding method (MCS, etc.) of the uplink resource except for the time domain start position.

[0177] (2) The time offset value.

[0178] The time offset value is the time offset between the time start point of the resources actually occupied by the terminal during uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling. Of course, the configuration information may not include the time offset value.

[0179] Alternatively, the time offset value may be predefined in the protocol. Alternatively, it may also be carried by the high-reliability transmission mode activation signaling below.

[0180] The terminal receives the high-reliability transmission mode configuration information sent by the base station.

[0181] Step 402, the terminal performs uplink transmission and sends an uplink data packet.

[0182] Step 403: The terminal preprocesses the already transmitted data packets according to the high-reliability transmission mode configuration information to form a physical layer transport block.

[0183] Step 404: The base station receives the uplink transmission of the terminal and determines whether to activate the high-reliability transmission mode according to the correctness of the terminal's uplink transmission.

[0184] Step 405: When it is necessary to activate the high-reliability transmission mode, the base station sends a PDCCH command or HARQ NACK to the terminal to activate the high-reliability transmission mode. If the physical layer signaling for activating the high-reliability transmission mode is a PDCCH command, this PDCCH command may carry the time offset between this PDCCH command and the start point of the uplink transmission resource PUSCH (Physical Uplink Shared Channel).

[0185] Step 406: If the high-reliability transmission mode activation signaling from the base station is received, then the terminal obtains the time offset value according to the protocol regulations, or from the high-reliability transmission mode configuration information, or from the high-reliability transmission mode activation signaling, determines the time start point of the resources actually occupied during uplink transmission in the high-reliability transmission mode according to this time offset value, and maps the physical layer transport block to the actual resources in the physical layer for transmission according to this time start point.

[0186] Step 407: If the high-reliability transmission mode activation signaling from the base station is not received, for example, the base station schedules a retransmission in other ways (such as a regular scheduling command), or the base station schedules a new transmission using the HARQ process for sending uplink data in Step 402, then the terminal performs uplink transmission according to the existing configured resources and discards the physical layer transport block obtained by preprocessing.

[0187] Step 408: The base station receives the retransmission of the data packet on the uplink resource (for the high-reliability transmission mode), that is, the retransmission of the data packet that failed in the previous transmission.

[0188] Such as Figure 5As shown, through the process of this embodiment, the base station configures the high-reliability transmission mode for the terminal. Subsequently, the terminal performs uplink data transmission of PUSCH1 (1). The terminal preprocesses the data packet to be transmitted (which is a retransmission packet in this embodiment) according to the configuration information to obtain a physical layer transport block (2), and simultaneously prepares for activation. Meanwhile, the terminal can also prepare for uplink transmission according to the existing configured resources (5). If the high-reliability transmission mode activation signaling is received (3), the terminal maps the physical layer transport block to the actual physical layer time-frequency domain resources (4). In the above process, the preprocessing performed according to the high-reliability transmission mode configuration information can be carried out in parallel with the terminal's preparation for uplink transmission according to the existing configured resources, thereby saving the time for the preparation of uplink transmission (5), enabling the base station to retransmit and schedule service data packets with a very small end-to-end delay (such as 0.5 ms). Therefore, through this embodiment, a retransmission time interval shorter than that of the prior art can be achieved, enabling HARQ retransmission for ultra-low latency services and better ensuring the reliability of ultra-low latency services.

[0189] See Figure 6 , Figure 6 is a flowchart of the data transmission method according to an embodiment of the present application, including:

[0190] Step 601: The base station configures the high-reliability transmission mode for the terminal using RRC signaling, and sends the high-reliability transmission mode configuration information to the terminal. The configuration information may include:

[0191] (1) The time-frequency occupation (frequency domain resource distribution, time domain length, etc.) of the uplink resources except for the time domain starting position and the modulation and coding method (MCS, etc.).

[0192] (2) The time offset value.

[0193] The time offset value is the time offset between the time starting point of the resources actually occupied by the terminal during uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling. Of course, the time offset value may not be included in the configuration information.

[0194] Alternatively, the time offset value may be predefined in the protocol. Alternatively, it may be carried by the high-reliability transmission mode activation signaling below.

[0195] The terminal receives the high-reliability transmission mode configuration information sent by the base station.

[0196] Step 602: The terminal performs uplink transmission and sends an uplink data packet.

[0197] Step 603: When a new data packet arrives, the terminal preprocesses it according to the high-reliability transmission mode configuration information to form a physical layer transport block.

[0198] Step 604: The base station receives the uplink transmission from the terminal and determines whether to activate the high-reliability transmission mode according to the correctness of the terminal's uplink transmission.

[0199] Step 605: When it is necessary to activate the high-reliability transmission mode, the base station sends a PDCCH command or HARQ NACK to the terminal to activate the high-reliability transmission mode. If the physical layer signaling for activating the high-reliability transmission mode is a PDCCH command, this PDCCH command may carry the time offset between this PDCCH command and the start point of the uplink transmission resource PUSCH.

[0200] Step 606: If the high-reliability transmission mode activation signaling from the base station is received, then the terminal obtains the time offset value according to the protocol regulations, or from the high-reliability transmission mode configuration information, or from the high-reliability transmission mode activation signaling, determines the time start point of the actually occupied resources for uplink transmission in the high-reliability transmission mode according to this time offset value, and maps the physical layer transport block to the actual resources in the physical layer for transmission according to this time start point.

[0201] Step 607: If the high-reliability transmission mode activation signaling from the base station is not received, for example, the base station schedules retransmission in other ways (such as a conventional scheduling command), then the terminal performs uplink transmission according to the existing configured resources and discards the physical layer transport block obtained by preprocessing.

[0202] Step 608: The base station receives the data packet transmission sent by the terminal on the uplink resource (for the high-reliability transmission mode).

[0203] Continue to refer to Figure 5 This embodiment has the same process as Figure 5 shown, the difference is that in this embodiment, the physical layer transport block of a new data packet is transmitted in the high-reliability transmission mode, that is, what is transmitted in PUSCH2 is not the retransmission in PUSCH1, but a new data packet.

[0204] In this embodiment, after the service data packet is lost and enters the survival time, the terminal can transmit the next data packet in the manner specified by the high-reliability transmission mode within the shortest delay, so as to ensure the reliability of the next data packet, thereby ensuring the recovery of the service data packet transmission and avoiding the service from entering an unavailable state.

[0205] Refer to Figure 7 Figure 7 is a flowchart of the data transmission method according to the embodiment of the present application, including:

[0206] Step 701: The base station configures the high-reliability transmission mode for the terminal using RRC signaling and sends the high-reliability transmission mode configuration information to the terminal. The configuration information may include:​

[0207] (1) Time-frequency domain occupancy (such as frequency domain resource distribution, time domain length, etc.) and modulation and coding scheme (MCS, etc.) of the uplink resources except for the time domain starting position.

[0208] (2) When PDCP duplication is configured, PDCP transmission can be activated, and / or, the RLC channel and / or the corresponding cell that can be activated.

[0209] (3) Time offset value.

[0210] The time offset value is the time offset between the time starting point of the resources actually occupied by the terminal during uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling. Of course, the configuration information may not include the time offset value.

[0211] Alternatively, the time offset value can also be predefined in the protocol. Or, it can also be carried by the high-reliability transmission mode activation signaling below.

[0212] The terminal receives the high-reliability transmission mode configuration information sent by the base station.

[0213] Step 702: The terminal performs uplink transmission and sends an uplink data packet.

[0214] Step 703: When a new data packet (this data packet is for the same service or the same DRB as the data packet transmitted in step 702) arrives, the terminal performs preprocessing according to the high-reliability transmission mode configuration information to form a physical layer transport block.

[0215] Step 704: The base station receives the uplink transmission of the terminal and determines whether to activate the high-reliability transmission mode according to the correctness of the terminal uplink transmission.

[0216] Step 705: When it is necessary to activate the high-reliability transmission mode, the base station sends a PDCCH command or HARQ NACK to the terminal to activate the high-reliability transmission mode. If the physical layer signaling for activating the high-reliability transmission mode is a PDCCH command, this PDCCH command can carry the time offset between this PDCCH command and the starting point of the uplink transmission resource PUSCH.

[0217] Step 706: If a high-reliability transmission mode activation signaling from the base station is received, then the terminal obtains a time offset value according to protocol regulations, or from the high-reliability transmission mode configuration information, or from the high-reliability transmission mode activation signaling, determines the time origin of the resources actually occupied during uplink transmission in the high-reliability transmission mode according to this time offset value, activates a new RLC channel and a cell, and on the primary RLC channel and the newly activated secondary RLC channel, maps the physical layer transport block to the actual physical layer resources for transmission (repeated transmission on multiple RLC channels) according to the determined uplink resource origin.

[0218] Step 707: If a high-reliability transmission mode activation signaling from the base station is not received, for example, the base station schedules retransmission in other ways (such as a regular scheduling command), then the terminal performs uplink transmission according to the existing configured resources and discards the physical layer transport block obtained by preprocessing.

[0219] Step 708: The base station activates the RLC channel and cell indicated in the configuration information, and on the primary RLC channel and the newly activated RLC channel, receives the packet transmission sent by the terminal on the uplink resources according to the uplink resource time origin determined according to the time offset value (for the high-reliability transmission mode).

[0220] Combined with Figure 8 As shown, in the case where PDCP retransmission is configured, if a high-reliability transmission mode activation signaling from the base station is received, the terminal activates new RLC channels (such as RLC2, RLC3, RLC4) and a cell, and on the primary RLC channel and the newly activated secondary RLC channel, maps the physical layer transport block to the actual physical layer resources for transmission (repeated transmission on multiple RLC channels) according to the determined uplink resource origin.

[0221] In the embodiments of the present application, in addition to performing high-reliability transmission mode transmission with the shortest delay within the cell, PDCP retransmission of other RLC entities and cells can also be quickly activated. When the channel of this cell suddenly experiences a deep fade, using other RLC channels and cells for PDCP retransmission can better achieve the correct transmission of the next data packet, ensure service recovery, and avoid the effect of the service entering an unavailable state.

[0222] See Figure 9 , Figure 9 is a flowchart of the data transmission method in the embodiments of the present application, including:

[0223] Step 901: The base station configures the high-reliability transmission mode for the terminal using RRC signaling, and sends high-reliability transmission mode configuration information to the terminal. The configuration information may include:

[0224] (1) Time-frequency domain occupancy (frequency domain resource distribution, time domain length, etc.) and modulation and coding scheme (MCS, etc.) of the uplink resources except for the time domain starting position.

[0225] (2) When PDCP duplication is configured, PDCP transmission can be activated, and / or, the RLC channel and / or the corresponding cell that can be activated.

[0226] (3) Activate the pre-configured resource indication, and / or, the number of the activated pre-configured resources.

[0227] (4) Time offset value.

[0228] The time offset value is the time offset between the time starting point of the resources actually occupied by the terminal during uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling. Of course, the configuration information may not include the time offset value.

[0229] Alternatively, the time offset value may be predefined in the protocol. Alternatively, it may also be carried by the high-reliability transmission mode activation signaling below.

[0230] The terminal receives the high-reliability transmission mode configuration information sent by the base station.

[0231] Step 902: The terminal performs uplink transmission and sends an uplink data packet.

[0232] Step 903: When a new data packet (this data packet is for the same service or the same DRB as the data packet transmitted in step 902) arrives, the terminal performs preprocessing according to the high-reliability transmission mode configuration information to form a physical layer transport block.

[0233] Step 904: The base station receives the uplink transmission of the terminal and determines whether to activate the high-reliability transmission mode according to the correctness of the terminal's uplink transmission.

[0234] Step 905: When it is necessary to activate the high-reliability transmission mode, the base station sends a PDCCH command or HARQ NACK to the terminal to activate the high-reliability transmission mode. If the physical layer signaling for activating the high-reliability transmission mode is a PDCCH command, this PDCCH command may carry the time offset between this PDCCH command and the starting point of the uplink transmission resource PUSCH.

[0235] Step 906: If a high-reliability transmission mode activation signaling from the base station is received, the terminal obtains a time offset value according to protocol regulations, or from the high-reliability transmission mode configuration information, or from the high-reliability transmission mode activation signaling, and determines the time start point of the resources actually occupied during uplink transmission in the high-reliability transmission mode according to the time offset value, and activates the pre-configured resources of the current cell. If it is determined from the configuration information that there is a newly activated cell for retransmission, optionally, the pre-configured resources corresponding to the activation pre-configured resource number of the corresponding cell are also activated (optional). According to the determined uplink resource start point, the physical layer transport block is mapped to the actual resources of the physical layer for transmission.

[0236] Step 907: If a high-reliability transmission mode activation signaling from the base station is not received, for example, the base station schedules retransmission in other ways (such as a regular scheduling command), the terminal performs uplink transmission according to the existing configured resources and discards the physical layer transport block obtained by preprocessing.

[0237] Step 908: The base station activates the pre-configured resources of the current cell according to the configuration information. If there is a newly activated cell for retransmission according to the configuration information in Step 901, the base station also activates the pre-configured resources corresponding to the activation pre-configured resource number of the corresponding cell (optional). On the activated pre-configured resources, uplink transmission (for the high-reliability transmission mode) is received.

[0238] In the embodiment of the present application, the consideration of pre-configured resource activation is further added. By activating the pre-configured resources, after the corresponding pre-configured resources are activated, the service data is transmitted in the high-reliability transmission mode for a period of time, which is applicable to different survival time parameters.

[0239] It can be seen from the above description that in the embodiment of the present application, a method for flexibly configuring and activating the high-reliability transmission mode is proposed. When the service transmission of the terminal enters the survival time state, the high-reliability transmission mode can be timely scheduled or activated, thereby reducing the probability of the occurrence of an unavailable transmission link and improving the feasibility of the overall service data transmission in the industrial Internet.

[0240] It should be noted that in the embodiments of this application, there is no strict sequence between the two processes of "the terminal receives the high-reliability transmission mode activation signaling from the network device" and "the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block". That is to say, the terminal can first receive the high-reliability transmission mode activation signaling and then preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device; or, the terminal can also first preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block, and then receive the high-reliability transmission mode activation signaling from the network device.

[0241] The technical solutions provided in the embodiments of this application can be applied to multiple systems, especially 5G systems. For example, the applicable systems can be Global System of Mobile Communication (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Long Term Evolution Advanced (LTE-A) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G New Radio (NR) systems, etc. Both terminal devices and network devices are included in these multiple systems. The system can also include a core network part, such as an Evolved Packet System (EPS), 5G System (5GS), etc.

[0242] The terminal device involved in the embodiments of this application can be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device can be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, devices such as personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of this application.

[0243] The network device involved in the embodiments of the present application can be a base station, which can include multiple cells that provide services to terminals. Depending on the specific application scenario, the base station can also be referred to as an access point, or it can be a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or it can be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can also be an evolved network device (evolutional Node B, eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or it can be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application do not limit this. In some network architectures, the network device can include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit can also be arranged separately geographically.

[0244] A network device and a terminal device can each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission. The MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). According to the form and quantity of the antenna combinations, the MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can also be diversity transmission, precoding transmission, beamforming transmission, etc.

[0245] As Figure 10 shown, the data transmission device in an embodiment of the present application is applied to a network device and includes: a processor 1000, configured to read a program in a memory 1020 and execute the following processes:

[0246] Send high-reliability transmission mode configuration information to the terminal;

[0247] Send a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0248] A transceiver 1010, configured to receive and send data under the control of the processor 1000.

[0249] Among them, in Figure 10 , the bus architecture can include any number of interconnected buses and bridges, specifically, various circuits represented by one or more processors represented by the processor 1000 and the memory represented by the memory 1020 are linked together. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, so they will not be further described herein. The bus interface provides an interface. The transceiver 1010 can be multiple elements, that is, including a transmitter and a receiver, and provides a unit for communicating with various other devices on the transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 when executing operations.

[0250] The processor 1010 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0251] The processor 1000 is responsible for managing the bus architecture and general processing. The memory 1020 can store data used by the processor 1000 when executing operations.

[0252] The processor 1000 is also used to read the program and execute the following steps:

[0253] Receive the data packet transmitted by the terminal in the high-reliability transmission mode. The data packet is a retransmitted data packet or a new data packet.

[0254] The processor 1000 is also used to read the program and execute the following steps:

[0255] In the case of determining that an uplink transmission error occurs, send a high-reliability transmission mode activation signaling to the terminal.

[0256] Wherein, the meaning of the high-reliability transmission mode configuration information can refer to the description of the foregoing embodiments.

[0257] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the foregoing method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0258] As Figure 11 shown, the data transmission device of the embodiments of the present application is applied to a terminal and includes: a processor 1100, configured to read a program in a memory 1120 and execute the following processes:

[0259] Preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block;

[0260] In the case of receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling;

[0261] Wherein, the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode.

[0262] A transceiver 1110 for receiving and transmitting data under the control of a processor 1100.

[0263] Among them, in Figure 11 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by the processor 1100 and the memory represented by the memory 1120. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus will not be further described herein. The bus interface provides an interface. The transceiver 1110 can be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1130 can also be an interface capable of externally connecting and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0264] The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when executing operations.

[0265] The processor 1110 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0266] The processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in the memory. The processor and the memory can also be physically separated.

[0267] Among them, the high-reliability transmission mode configuration information includes:

[0268] Time-frequency domain resource occupancy information and modulation and coding mode of uplink resources, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time-domain starting position.

[0269] Among them, the configuration information further includes one or more of the following:

[0270] The first information for indicating the activation of PDCP retransmission when packet data convergence protocol (PDCP) retransmission is configured;

[0271] Second information, used to indicate, in the case where PDCP retransmission is configured, information on logical channels that can be activated in the case of PDCP retransmission and / or information on cells corresponding to the logical channels that can be activated;

[0272] Third information, used to indicate the activation of preconfigured resources;

[0273] Fourth information, used to indicate the activation of a first preconfigured resource among multiple preconfigured resources.

[0274] Wherein, the processor 1100 is used to read the computer program in the memory and perform the following operations:

[0275] Preprocess the data packet to be transmitted according to the time-frequency domain resource occupancy information and modulation and coding scheme to obtain the physical layer transport block.

[0276] Wherein, the processor 1100 is used to read the computer program in the memory and perform the following operations:

[0277] Determine the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0278] Map the physical layer transport block to the corresponding physical layer resources for transmission according to the time start point.

[0279] Wherein, the processor 1100 is used to read the computer program in the memory and perform the following operations:

[0280] Add a time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0281] Use the time start point position of uplink transmission in the high-reliability transmission mode indicated in the high-reliability transmission mode activation signaling as the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode.

[0282] Wherein, the time offset value is the time offset between the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode by the terminal and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods:

[0283] The time offset value is carried in the high-reliability transmission mode configuration information;

[0284] The time offset value is predefined in the protocol;

[0285] The time offset value is carried in the high-reliability transmission mode activation signaling.

[0286] Among them, the processor 1100 is used to read the computer program in the memory and perform the following operations:

[0287] Transmit at the time-frequency resource position designated for the current cell;

[0288] In the case where PDCP retransmission is configured, transmit at the time-frequency resource position of the cell corresponding to the activated logical channel;

[0289] Transmit on the activated first preconfigured resource.

[0290] Among them, the high-reliability transmission mode activation signaling includes a PDCCH command or a HARQ NACK command;

[0291] Among them, in the case where the high-reliability transmission mode activation signaling is a PDCCH command, the designated field of the downlink control information DCI carried by the PDCCH command is a preset value.

[0292] Among them, the processor 1100 is used to read the computer program in the memory and perform the following operations:

[0293] Process the data packet to be transmitted by using the processing method corresponding to the second preconfigured resource;

[0294] In the case where the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the processed data packet to be transmitted by using the second preconfigured resource, and discards the physical layer transport block corresponding to the high-reliability transmission mode;

[0295] The configuration information corresponding to the second preconfigured resource is different from the high-reliability transmission mode configuration information.

[0296] It should be noted here that the above device provided by the embodiments of the present application can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments are not specifically described in this embodiment again.

[0297] As Figure 12 shown, the data transmission device 1200 according to the embodiments of the present application is applied to a terminal and includes:

[0298] The first processing unit 1201 is configured to preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device, so as to obtain a physical layer transport block; the first transmission unit 1202 is configured to, when receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling; wherein, the high-reliability transmission mode activation signaling is used to instruct the terminal to perform data transmission based on the high-reliability transmission mode.

[0299] Wherein, the high-reliability transmission mode configuration information includes:

[0300] The time-frequency domain resource occupancy information and modulation and coding scheme of the uplink resource, and the time-frequency domain resource occupancy information includes the time-frequency resource distribution information except for the time domain starting position.

[0301] Wherein, the configuration information further includes one or more of the following:

[0302] The first piece of information is used to indicate the activation of PDCP retransmission when PDCP retransmission is configured.

[0303] The second piece of information is used to indicate, when PDCP retransmission is configured, the information of the logical channels that can be activated during PDCP retransmission and / or the information of the cells corresponding to the logical channels that can be activated.

[0304] The third piece of information is used to indicate the activation of preconfigured resources.

[0305] The fourth piece of information is used to indicate the activation of the first preconfigured resource among multiple preconfigured resources.

[0306] Wherein, the first processing unit 1202 is configured to preprocess the data packet to be transmitted according to the time-frequency domain resource occupancy information and modulation and coding scheme, so as to obtain the physical layer transport block.

[0307] Wherein, when the terminal receives the high-reliability transmission mode activation signaling sent by the network device, the first transmission unit 1203 includes:

[0308] The first determination subunit is configured to determine the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode; the first mapping subunit is configured to map the physical layer transport block to the corresponding physical layer resources for transmission according to the time starting point.

[0309] The first determination subunit is configured to perform any one of the following:

[0310] Add the time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode;

[0311] Use the time starting point position for uplink transmission indicated in the high-reliability transmission mode activation signaling as the time starting point of the resources actually occupied for uplink transmission in the high-reliability transmission mode.

[0312] Among them, the time offset value is the time offset between the time starting point of the resources actually occupied for uplink transmission by the terminal in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods:

[0313] The time offset value is carried in the high-reliability transmission mode configuration information;

[0314] The time offset value is predefined in the protocol;

[0315] The time offset value is carried in the high-reliability transmission mode activation signaling.

[0316] Among them, the first mapping sub-unit is used to point to any one of the following:

[0317] Transmit at the time-frequency resource position specified for the current cell;

[0318] When PDCP retransmission is configured, transmit at the time-frequency resource position of the cell corresponding to the activated logical channel;

[0319] Transmit on the activated first preconfigured resource.

[0320] Among them, the high-reliability transmission mode activation signaling includes a physical downlink control channel PDCCH command or a hybrid automatic repeat request negative acknowledgment HARQ NACK command;

[0321] Among them, when the high-reliability transmission mode activation signaling is a PDCCH command, the specified field of the downlink control information DCI carried in the PDCCH command is a preset value.

[0322] Among them, the device further includes: a second processing unit, configured to process the data packet to be transmitted using the processing method corresponding to the second preconfigured resource; a third processing unit, configured to, when the high-reliability transmission mode activation signaling sent by the network device is not received, the terminal transmits the processed data packet to be transmitted using the second preconfigured resource and discards the physical layer transport block corresponding to the high-reliability transmission mode; the configuration information corresponding to the second preconfigured resource is different from the high-reliability transmission mode configuration information.

[0323] Among them, the data packet to be transmitted is a retransmitted data packet or a new data packet.

[0324] It should be noted here that the above-mentioned device provided by the embodiments of the present application can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0325] As Figure 13 shown, the data transmission device 1300 according to the embodiments of the present application is applied to a network device and includes:

[0326] A first sending unit 1301, configured to send high-reliability transmission mode configuration information to a terminal; a second sending unit 1302, configured to send a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate data transmission based on the high-reliability transmission mode.

[0327] Among them, the meaning of the high-reliability transmission mode configuration information can be referred to the description of the foregoing embodiments.

[0328] Among them, the device may further include:

[0329] A first receiving unit, configured to receive a data packet transmitted by the terminal in the high-reliability transmission mode, where the data packet is a retransmitted data packet or a new data packet.

[0330] Among them, the device may further include:

[0331] A second sending unit, configured to send a high-reliability transmission mode activation signaling to the terminal when it is determined that an uplink transmission error occurs.

[0332] It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present application, each functional unit may be integrated into a processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software functional units.

[0333] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0334] Embodiments of this application also provide a readable storage medium. A program is stored on the readable storage medium. When the program is executed by a processor, it implements each process of the above-described data transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here. Among them, the aforementioned readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic memories (such as floppy disks, hard disks, magnetic tapes, magneto-optical discs (MO), etc.), optical memories (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drives (SSD), etc.).

[0335] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including that element.

[0336] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, disk, optical disc), and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0337] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A data transmission method, characterized in that, Including: The terminal pre - processes the data packet to be transmitted according to the high - reliability transmission mode configuration information sent by the network device to obtain a physical - layer transport block, and the physical - layer transport block represents a time - frequency domain resource bit - occupancy map; When the terminal receives the high - reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical - layer transport block on the resources corresponding to the high - reliability transmission mode according to the high - reliability transmission mode activation signaling; Wherein, the high - reliability transmission mode activation signaling is used to explicitly instruct the terminal to perform data transmission based on the high - reliability transmission mode; The high - reliability transmission mode activation signaling includes a physical downlink control channel PDCCH command; Wherein, the specified field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: The second information, which is used to indicate the information of the logical channel that can be activated and / or the information of the cell corresponding to the logical channel that can be activated in the case of PDCP re - transmission when PDCP re - transmission is configured.

2. The method according to claim 1, characterized in that, The high - reliability transmission mode configuration information includes: The time - frequency domain resource occupancy information and modulation and coding scheme of the uplink resource, and the time - frequency domain resource occupancy information includes the time - frequency resource distribution information except for the time - domain starting position.

3. The method according to claim 2, wherein, The configuration information further includes one or more of the following: The first information, which is used to indicate the activation of PDCP re - transmission when PDCP (Packet Data Convergence Protocol) re - transmission is configured; The third information, which is used to indicate the activation of pre - configured resources; The fourth information, which is used to indicate the activation of the first pre - configured resource among multiple pre - configured resources.

4. The method according to claim 2, wherein The terminal pre - processes the data packet to be transmitted according to the configuration information to obtain a physical - layer transport block, including: The terminal pre - processes the data packet to be transmitted according to the time - frequency domain resource occupancy information and modulation and coding scheme to obtain the physical - layer transport block.

5. The method according to claim 1, wherein When the terminal receives the high - reliability transmission mode activation signaling sent by the network device, the terminal transmits the physical - layer transport block on the resources corresponding to the high - reliability transmission mode according to the high - reliability transmission mode activation signaling, including: The terminal determines the time starting point of the resources actually occupied for uplink transmission in the high - reliability transmission mode; The terminal maps the physical - layer transport block to the corresponding physical - layer resources for transmission according to the time starting point.

6. The method according to claim 5, wherein The terminal determines the time starting point of the resources actually occupied for uplink transmission in the high - reliability transmission mode, including any one of the following steps: The terminal adds a time offset value to the transmission time point of the high - reliability transmission mode activation signaling to obtain the time starting point of the resources actually occupied for uplink transmission in the high - reliability transmission mode; The terminal uses the time starting point position of uplink transmission in the high - reliability transmission mode indicated in the high - reliability transmission mode activation signaling as the time starting point of the resources actually occupied for uplink transmission in the high - reliability transmission mode.

7. The method according to claim 6, wherein The time offset value is the time offset between the time starting point of the resources actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods: The time offset value is carried in the high-reliability transmission mode configuration information; The time offset value is predefined in the protocol; The time offset value is carried in the high-reliability transmission mode activation signaling.

8. The method according to claim 5, characterized in that The terminal maps the physical layer transport block to the corresponding physical layer resources for transmission according to the time starting point, including any one of the following: Transmit at the time-frequency domain resource position specified for the current cell; When PDCP retransmission is configured, transmit at the time-frequency domain resource position of the cell corresponding to the activated logical channel; Transmit on the activated first preconfigured resource.

9. The method according to claim 1, wherein After the terminal receives the high-reliability transmission mode configuration information sent by the network device, the method further includes: The terminal processes the data packet to be transmitted using the processing method corresponding to the second preconfigured resource; After the terminal preprocesses the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block, the method further includes: When the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal transmits the processed data packet to be transmitted using the second preconfigured resource and discards the physical layer transport block corresponding to the high-reliability transmission mode; The configuration information corresponding to the second preconfigured resource is different from the high-reliability transmission mode configuration information.

10. The method according to claim 1, characterized in that The data packet to be transmitted is a retransmitted data packet or a new data packet.

11. A data transmission method, characterized in that, Including: The network device sends high-reliability transmission mode configuration information to the terminal, where the high-reliability transmission mode configuration information is used to indicate preprocessing the data packet to be transmitted to obtain a physical layer transport block, and the physical layer transport block represents a time-frequency domain resource bit occupancy map; The network device sends high-reliability transmission mode activation signaling to the terminal, and the high-reliability transmission mode activation signaling is used to indicate transmitting the physical layer transport block on the resources corresponding to the high-reliability transmission mode; Among them, the high-reliability transmission mode activation signaling is used to explicitly indicate data transmission based on the high-reliability transmission mode; The high-reliability transmission mode activation signaling includes a PDCCH command; Among them, the specified field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: Second information, which is used to indicate, when PDCP retransmission is configured, information about the logical channels that can be activated and / or information about the cells corresponding to the logical channels that can be activated during PDCP retransmission.

12. The method according to claim 11, wherein The high-reliability transmission mode configuration information includes: Time-frequency domain resource occupancy information and modulation and coding scheme of the uplink resources, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time starting point position in the time domain.

13. The method according to claim 12, wherein The high-reliability transmission mode configuration information further includes: A time offset value, where the time offset value is the time offset between the time start point of the resources actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling.

14. The method according to claim 12 or 13, characterized in that, The configuration information further includes one or more of the following: First information, used to indicate the activation of PDCP retransmission when PDCP retransmission is configured; Third information, used to indicate the activation of pre-configured resources; Fourth information, used to indicate the activation of a first pre-configured resource among multiple pre-configured resources.

15. The method according to claim 11, wherein The high-reliability transmission mode activation signaling includes a time offset value, where the time offset value is the time offset between the time start point of the resources actually occupied by the terminal for uplink transmission in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling.

16. The method according to claim 11, characterized in that, The method further includes: The network device receives a data packet transmitted by the terminal in the high-reliability transmission mode, and the data packet is a retransmitted data packet or a new data packet.

17. The method according to claim 11, wherein The network device sends a high-reliability transmission mode activation signaling to the terminal, including: When it is determined that an uplink transmission error occurs, the network device sends a high-reliability transmission mode activation signaling to the terminal.

18. A data transmission device, applied to a terminal, characterized in that, Including a memory, a transceiver, and a processor: The memory is used to store a computer program; the transceiver is used to transmit and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block, and the physical layer transport block represents a time-frequency domain resource bit occupancy map; When receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling; Wherein, the high-reliability transmission mode activation signaling is used to explicitly instruct the terminal to perform data transmission based on the high-reliability transmission mode; The high-reliability transmission mode activation signaling includes a PDCCH command; Wherein, the designated field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: Second information, used to indicate information about logical channels that can be activated and / or information about cells corresponding to logical channels that can be activated when PDCP retransmission is configured.

19. The device according to claim 18, wherein The high-reliability transmission mode configuration information includes: Time-frequency domain resource occupancy information and modulation and coding scheme of uplink resources, and the time-frequency domain resource occupancy information includes time-frequency resource distribution information except for the time start position in the time domain.

20. The device according to claim 19, characterized in that The configuration information further includes one or more of the following: First information, used to indicate the activation of PDCP retransmission when packet data convergence protocol (PDCP) retransmission is configured; Third information, used to indicate the activation of pre-configured resources; Fourth information, used to indicate the activation of a first pre-configured resource among multiple pre-configured resources.

21. The device according to claim 19, characterized in that, The processor is used to read the computer program in the memory and perform the following operations: Preprocess the data packet to be transmitted according to the time-frequency domain resource occupancy information and modulation and coding scheme to obtain the physical layer transport block.

22. The device according to claim 18, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: Determine the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode; According to the time start point, map the physical layer transport block to the corresponding physical layer resources for transmission.

23. The device according to claim 22, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Add a time offset value to the transmission time point of the high-reliability transmission mode activation signaling to obtain the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode; Use the time start point position indicated in the high-reliability transmission mode activation signaling for uplink transmission as the time start point of the resources actually occupied for uplink transmission in the high-reliability transmission mode.

24. The device according to claim 23, characterized in that, The time offset value is the time offset between the time start point of the resources actually occupied for uplink transmission by the terminal in the high-reliability transmission mode and the transmission time point of the high-reliability transmission mode activation signaling; the time offset value is indicated by one or more of the following methods: The time offset value is carried in the high-reliability transmission mode configuration information; The time offset value is predefined in the protocol; The time offset value is carried in the high-reliability transmission mode activation signaling.

25. The device according to claim 22, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: Transmit at the time-frequency domain resource position designated for the current cell; In the case of configuring PDCP retransmission, transmit at the time-frequency domain resource position of the cell corresponding to the activated logical channel; Transmit on the activated first preconfigured resource.

26. The device according to claim 18, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: Process the data packet to be transmitted using the processing method corresponding to the second preconfigured resource; In the case that the terminal does not receive the high-reliability transmission mode activation signaling sent by the network device, the terminal uses the second preconfigured resource to transmit the processed data packet to be transmitted and discards the physical layer transport block corresponding to the high-reliability transmission mode; The configuration information corresponding to the second preconfigured resource is different from the high-reliability transmission mode configuration information.

27. A data transmission device, applied to a network device, characterized in that, Including a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; a processor for reading the computer program in the memory and performing the following operations: Send high-reliability transmission mode configuration information to the terminal, where the high-reliability transmission mode configuration information is used to indicate preprocessing the data packet to be transmitted to obtain a physical layer transport block, and the physical layer transport block is represented as a time-frequency domain resource bit occupancy map; Send a high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate transmitting the physical layer transport block on the resources corresponding to the high-reliability transmission mode; Wherein, the high-reliability transmission mode activation signaling is used to explicitly indicate data transmission based on the high-reliability transmission mode; The high-reliability transmission mode activation signaling includes a PDCCH command; Among them, the specified field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: The second information is used to indicate, in the case where PDCP retransmission is configured, information on logical channels that can be activated and / or information on cells corresponding to the logical channels that can be activated during PDCP retransmission.

28. The device according to claim 27, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: Receive the data packet transmitted by the terminal in the high-reliability transmission mode, where the data packet is a retransmitted data packet or a new data packet.

29. The device according to claim 27, characterized in that, The processor is configured to read the computer program in the memory and perform the following operations: In the case where it is determined that an uplink transmission error has occurred, send high-reliability transmission mode activation signaling to the terminal.

30. A data transmission device, applied to a terminal, characterized in that, Including: The first processing unit is configured to preprocess the data packet to be transmitted according to the high-reliability transmission mode configuration information sent by the network device to obtain a physical layer transport block, where the physical layer transport block represents a time-frequency domain resource bit occupancy map; The first transmission unit is configured to, in the case of receiving the high-reliability transmission mode activation signaling sent by the network device, transmit the physical layer transport block on the resources corresponding to the high-reliability transmission mode according to the high-reliability transmission mode activation signaling; Among them, the high-reliability transmission mode activation signaling is used to explicitly indicate that the terminal performs data transmission based on the high-reliability transmission mode; The high-reliability transmission mode activation signaling includes a PDCCH command; Among them, the specified field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: The second information is used to indicate, in the case where PDCP retransmission is configured, information on logical channels that can be activated and / or information on cells corresponding to the logical channels that can be activated during PDCP retransmission.

31. A data transmission device, applied to a network device, characterized in that, Including: The first sending unit is configured to send high-reliability transmission mode configuration information to the terminal, where the high-reliability transmission mode configuration information is used to indicate preprocessing of the data packet to be transmitted to obtain a physical layer transport block, where the physical layer transport block represents a time-frequency domain resource bit occupancy map; The second sending unit is configured to send high-reliability transmission mode activation signaling to the terminal, where the high-reliability transmission mode activation signaling is used to indicate transmitting the physical layer transport block on the resources corresponding to the high-reliability transmission mode; Among them, the high-reliability transmission mode activation signaling is used to explicitly indicate data transmission based on the high-reliability transmission mode; The high-reliability transmission mode activation signaling includes a PDCCH command; Among them, the specified field of the downlink control information DCI carried by the PDCCH command is a preset value; the configuration information includes: The second information is used to indicate, in the case where PDCP retransmission is configured, information on logical channels that can be activated and / or information on cells corresponding to the logical channels that can be activated during PDCP retransmission.

32. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the method according to any one of claims 1 to 17.

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