RU2791290C1 - Data transmission or reception method, terminal and storage medium - Google Patents

Abstract

FIELD: means of data transmission.

SUBSTANCE: set of transmission parameters is obtained, wherein the set of transmission parameters includes at least one possible value for the number of retransmissions. Downlink control information including the information field is received. The target possible number of retransmissions in the set of transmission parameters is determined based on the mentioned information field as the target number n of retransmissions, where n is a positive integer. The data is transmitted, in the target transmission resource, based on the target transmission mode for the target number n of retransmissions.

EFFECT: reduced number of retransmissions for devices.

19 cl, 12 dwg

Description

Link to related application

This application is the national phase of the international application PCT/CN2019/110666, which was filed on October 11, 2019 and which is hereby incorporated by reference in its entirety.

Technical field

The present invention relates to the field of mobile communications, namely, to a method and apparatus for transmitting data, a method and apparatus for receiving data, as well as a terminal and a data carrier.

Prerequisites for the creation of the invention

Machine-type communication technologies (MTS) and narrow-band Internet of Things (narrow-band Internet of Things, NB-IoT) technologies, in the context of the rapid development of the Internet of Things (IoT), are increasingly being used for low-power global network services ( low-power wide-area, LPWA), for example, for remote reading of water meters or for synchronized collection of agricultural information.

Because devices providing low-rate services transmit only small amounts of data to the base station per session, it is highly likely that the amount of overhead will be high when using traditional long-term evolution (LTE) data transfer procedures. Therefore, for LWPA devices, grant-free data transfer solutions in the uplink are used. At the same time, since LPWA devices are used in high interference environments, energy storage retransmissions are used to increase the probability of correctly receiving data from the LPWA device by the base station.

The essence of the invention

Embodiments of the present invention provide a method and apparatus for transmitting data, a method and apparatus for receiving data, a terminal, and a computer-readable medium that are used to solve the problem of an inadequate number of retransmissions for LPWA devices caused by the lack of a satisfactory method for configuring the number of retransmissions per the existing state of the art. The proposed technical solutions are described below.

According to a first aspect of the embodiments of the present invention, a data transmission method is provided. The method includes the steps described below. Get a set of transmission parameters.

Downlink control information including an information field is received.

The target number n of retransmissions is determined based on said set of transmission parameters and the information field, where n is a positive integer.

The data is transmitted, in the target transmission resource, based on the target transmission mode for the target number n of retransmissions.

In some of the embodiments of the present invention, the set of transmission parameters includes at least one possible number of retransmissions.

Determining the target number n of retransmissions based on said set of transmission parameters and information field includes the following.

The target possible number of retransmissions in said set of transmission parameters is determined based on said information field as the target number n of retransmissions.

In some of the embodiments of the present invention, a first configuration signaling is received from the base station to configure a set of transmission parameters.

The first configuration signaling includes at least one of radio resource control (RRC) signaling, media access control (MAC) control element (CE) signaling, or physical layer signaling.

In some of the embodiments of the present invention, obtaining a set of transmission parameters includes described below.

The first reference parameter and the first set of coefficients are obtained.

The transmission parameter set is determined based on the first reference parameter and the first coefficient set.

In some of the embodiments of the present invention, determining a set of transmission parameters based on the first reference parameter and the first set of coefficients includes the following.

The transmission parameter set is determined based on the products of the first reference parameter and each coefficient from the first coefficient set.

Or

a set of transmission parameters is determined based on the sums of the first reference parameter and each coefficient from the first set of coefficients.

In some of the embodiments of the present invention, the method further includes described below.

A second configuration signaling is received from the base station to configure the first reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the first reference parameter is determined based on a preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when grant-free scheduling is performed.

Or

the first reference parameter is determined based on the configured number of retransmissions.

In some of the embodiments of the present invention, the method further includes described below.

A third configuration signaling is received from the base station to configure the first set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the first set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the transmission parameter set includes a second coefficient set, and the second coefficient set includes at least one coefficient parameter.

Determining the target number n of retransmissions based on said set of transmission parameters and information field includes the following.

Get the second reference parameter.

The target coefficient is determined from the second set of coefficients based on said information field.

The reference number of retransmissions is determined based on the target rate and the second reference parameter.

The target number n of retransmissions is determined based on the reference number of retransmissions.

In some of the embodiments of the present invention, said coefficient parameter includes a product coefficient and/or a difference coefficient.

The reference number of retransmissions is the product of the target coefficient and the second reference parameter, if the target coefficient is the coefficient of the product.

Or

the reference number of retransmissions is the sum of the target coefficient and the second reference parameter if the target coefficient is a difference coefficient.

In some of the embodiments of the present invention, the set of transmission parameters includes a set of targets for the number of retransmissions.

Determining the target number of retransmissions n based on the reference number of retransmissions includes the following.

The target number n of retransmissions is determined based on the reference number of retransmissions and the set of target values for the number of retransmissions.

The target number of retransmissions n is a value from the set of target values of the number of retransmissions that is greater than or equal to the reference number of retransmissions and has the smallest difference from the reference number of retransmissions, wherein the set of target values of retransmissions includes at least one possible target value of the number of retransmissions gears.

In some of the embodiments of the present invention, each possible retransmission number target value from the set of retransmission number targets is an integer power of 2.

Or

each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is a multiple of a predetermined value.

In some of the embodiments of the present invention, the method further includes described below.

A second configuration signaling is received from the base station for configuring a second reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the second reference parameter is determined based on a preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the second reference parameter is determined based on the configured number of retransmissions.

In some of the embodiments of the present invention, the method further includes described below.

A third configuration signaling is received from the base station to configure a second set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the second set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the downlink control information further includes a retransmission instruction.

The method further includes described below.

Reset the value of the target number n of retransmissions based on the retransmission instruction.

In accordance with yet another aspect of the present invention, a method for receiving data is provided. The method includes the steps described below.

Downlink control information including an information field is transmitted, wherein the terminal is configured to determine a target number n of retransmissions based on the set of transmission parameters and the information field.

Data from the terminal is received using a predetermined time and frequency.

In some of the embodiments of the present invention, the method further includes described below.

The first configuration signaling for configuring the transmission parameter set is transmitted to the terminal.

The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, a set of transmission parameters is obtained based on a reference parameter and a set of coefficients.

In some of the embodiments of the present invention, the method further includes described below.

The second configuration signaling for configuring the reference parameter is sent to the terminal.

The second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, the method further includes described below.

The third configuration signaling for configuring the coefficient set is sent to the terminal.

The third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In accordance with yet another aspect of the present invention, a data communication device is provided. The device includes a processing module, a receiving module and a transmission module.

The processing module is configured to receive a set of transmission parameters.

The receiving module is configured to receive downlink control information including the information field.

The processing module is also configured to determine a target number n of retransmissions based on said set of transmission parameters and the information field, where n is a positive integer.

The transmission module is configured to transmit data, in the transmission target resource, based on the target transmission mode for the target number n of retransmissions.

In some embodiments of the present invention, the processing module is configured to determine one of the target possible number of retransmissions in said set of transmission parameters based on said information field as the target number n of retransmissions.

In some of the embodiments of the present invention, the set of transmission parameters includes at least one possible number of retransmissions.

The receiving module is configured to receive a first configuration signaling for configuring a set of transmission parameters from the base station.

The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, the processing module is configured to obtain the first reference parameter and the first set of coefficients.

The processing module is configured to determine a set of transmission parameters based on the first reference parameter and the first set of coefficients.

In some of the embodiments of the present invention, the processing module is configured to determine a set of transmission parameters based on the products of the first reference parameter and each coefficient from the first set of coefficients.

Or

the processing module is configured to determine a set of transmission parameters based on the sums of the first reference parameter and each coefficient from the first set of coefficients.

In some of the embodiments of the present invention, the receiving module is configured to receive, from the base station, a second configuration signaling for configuring a first reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the processing module is configured to determine the first reference parameter based on the preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the processing module is configured to determine the first reference parameter based on the configured number of retransmissions.

In some of the embodiments of the present invention, the receiving module is configured to receive, from the base station, a third configuration signaling for configuring a first set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the first set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the transmission parameter set includes a second coefficient set, and the second coefficient set includes at least one coefficient parameter.

The processing module is configured to receive the second reference parameter.

The processing module is configured to determine a target ratio from the second set of ratios based on said information field.

The processing module is configured to determine a reference number of retransmissions based on the target ratio and the second reference parameter.

The processing module is configured to determine a target number of retransmissions n based on the reference number of retransmissions.

In some of the embodiments of the present invention, each possible retransmission number target value from the set of retransmission number targets is an integer power of 2.

Or

each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is a multiple of a predetermined value.

In some of the embodiments of the present invention, the receiving module is configured to receive, from the base station, a second configuration signaling for configuring a first reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the processing module is configured to determine the first reference parameter based on the preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the processing module is configured to determine the first reference parameter based on the configured number of retransmissions.

In some of the embodiments of the present invention, the receiving module is configured to receive, from the base station, a third configuration signaling for configuring a first set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the first set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, said coefficient parameter includes a product coefficient and/or a difference coefficient.

The reference number of retransmissions is the product of the target coefficient and the second reference parameter, if the target coefficient is the coefficient of the product.

Or

the reference number of retransmissions is the sum of the target coefficient and the second reference parameter if the target coefficient is a difference coefficient.

In some of the embodiments of the present invention, the set of transmission parameters includes a set of targets for the number of retransmissions.

The processing module is configured to determine a target number n of retransmissions based on a reference number of retransmissions and a set of target values for the number of retransmissions.

The target number of retransmissions n is a value from the set of target values of the number of retransmissions that is greater than or equal to the reference number of retransmissions and has the smallest difference from the reference number of retransmissions, wherein the set of target values of retransmissions includes at least one possible target value of the number of retransmissions gears.

In some of the embodiments of the present invention, each possible retransmission number target value from the set of retransmission number targets is an integer power of 2.

Or

each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is a multiple of a predetermined value.

In some embodiments of the present invention, the receiving module is configured to receive, from the base station, a second configuration signaling for configuring a second reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the processing unit is configured to determine the second reference parameter based on the preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the processing module is configured to determine the second reference parameter based on the configured number of retransmissions.

In some of the embodiments of the present invention, the receiving module is configured to receive, from the base station, a third configuration signaling to configure a second set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the second set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the downlink control information further includes a retransmission instruction.

The processing module is configured to reset the target number n of retransmissions based on the retransmission instruction.

In accordance with yet another aspect of the present invention, an apparatus for receiving data is provided. The device includes a transmission module and a reception module.

The transmission module is configured to transmit downlink control information including the information field, wherein the terminal is configured to determine a target number n of retransmissions based on the transmission parameter set and the information field.

The receiving module is configured to receive data from the terminal within a predetermined time and frequency.

In some of the embodiments of the present invention, the transmission module is configured to send a first configuration signaling to the terminal to configure a set of transmission parameters.

The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, a set of transmission parameters is obtained based on a reference parameter and a set of coefficients.

In some of the embodiments of the present invention, the transmission module is configured to send a second configuration signaling for configuring a reference parameter to the terminal.

The second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, the transmission module is configured to send a third configuration signaling for configuring the coefficient set to the terminal.

The third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In accordance with yet another aspect of the present invention, a data communication device is provided. The terminal includes the following.

The terminal includes a processor.

The terminal includes a transceiver connected to the processor. The processor is configured to download and execute executable instructions to perform the data transfer method described above.

In accordance with yet another aspect of the present invention, an apparatus for receiving data is provided. The terminal includes the following. The terminal includes a processor.

The terminal includes a transceiver connected to the processor.

The processor is configured to download and execute executable instructions to carry out the method of receiving data described above.

In accordance with yet another aspect of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, wherein said at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to performing the above-described data transmission method.

In accordance with yet another aspect of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores at least one instruction, at least one program, code set or instruction set, wherein said at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to performing the above-described method of receiving data.

The technical solutions proposed in the embodiments of the present invention may provide the following beneficial results.

By obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal with no grant scheduling can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of an unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions and improves the transmission success rate.

Brief description of the drawings

For a more detailed description of the technical solutions proposed in the embodiments of the present invention, the drawings necessary for the following description are listed below. Obviously, in the attached drawings and in the following description, only some of the possible embodiments of the present invention are considered. Specialists in the art, without making creative efforts, can create other drawings based on them.

Figure 1 shows a block diagram of a communication system in some of the embodiments of the present invention.

Figure 2 shows a diagram of the data transfer procedure used in the current state of the art.

Figure 3 shows a diagram of the data transmission procedure in some of the embodiments of the present invention.

Figure 4 shows a flowchart for a data transmission method in some of the embodiments of the present invention.

Figure 5 shows a flowchart for a data transmission method in some of the embodiments of the present invention.

Figure 6 shows a flowchart for a data transmission method in some of the embodiments of the present invention.

Fig. 7 shows a flowchart for a data transmission method in some of the embodiments of the present invention.

8 shows a flowchart for a method for receiving data in some of the embodiments of the present invention.

Figure 9 shows a flow chart for a method for transmitting and receiving data in some of the embodiments of the present invention.

Figure 10 shows a block diagram of a device for data transmission in some of the embodiments of the present invention.

Figure 11 shows a block diagram of a device for receiving data in some of the embodiments of the present invention.

12 is a block diagram of a terminal for transmitting and receiving data in some of the embodiments of the present invention.

Detailed description of the invention

Hereinafter, the present invention will be described in more detail with the help of variants of its implementation, examples of which are illustrated in the attached drawings. The following description is made with reference to the accompanying drawings, where, unless otherwise indicated, the same or similar elements are designated by like symbols in various drawings. The implementations of the embodiments of the present invention discussed in the description below are not all possible implementations corresponding to the present invention. On the contrary, they are solely examples of devices and methods according to the present invention, as defined by the appended claims.

The terminology used herein is for the sole purpose of clarifying specific examples and should not be construed as limiting the present invention. Singular expressions such as "one of", "mentioned" or "this" in the present description and the appended claims should be interpreted as including the plural as well, unless the context clearly indicates otherwise. It is also to be understood that the expression "and/or" as used herein refers to or includes any or all possible combinations of one or more of the respective elements so listed.

In the present description, the reference to "an embodiment of the invention", "one of the embodiments of the invention", "one of the examples", "some of the embodiments of the invention", "some examples" or similar expressions means that the particular described feature, structure or characteristic included in at least one embodiment or embodiment of the invention. Features, structures, elements, or characteristics described in connection with one or more embodiments of the present invention may also be applied to other embodiments of the present invention, unless explicitly stated otherwise.

Expressions such as "first", "second", "third" or the like may be used to describe various information in this document, however, it should be understood that such expressions do not impose any restrictions on the information described. These expressions are used solely to distinguish between information of the same type. For example, within the scope of the present invention, the first information may also be referred to as the second information, and conversely, the second information may also be referred to as the first information. Depending on the context, the expression "if" can be interpreted as "when" or "while", or "in response to ... determine that".

The expressions "module", "submodule", "circuit", "subcircuit", "circuits", "subcircuits", "block" or "subblock" may include memory (shared, dedicated or group) that stores codes or instructions, executed by one or more processors. A module may include one or more circuits with or without codes or instructions stored thereon. A module or circuit may include one or more components connected directly or indirectly to each other. Such components do not have to be physically connected to each other or located side by side.

Blocks and modules may be implemented purely in software, purely in hardware, or in a combination of hardware and software. When implemented entirely in software, for example, a block or module may include functionality associated with code blocks or software components that are directly or indirectly linked to each other in order to perform a required function.

First, let us briefly define the terms used in the description of embodiments of the present invention.

LPWA services are an evolution of IoT technologies. IoT technologies allow a large number of measuring and control devices to have connections with LTE base stations (eNB) or New Radio (NR) base stations (gNB). These connections have low data rate requirements, but power consumption and cost factors are important. These connections have a wide geography and are numerous. Mobile communication technologies of the 3rd and 4th generations (3G/4G) do not allow meeting the cost criteria. 2nd generation mobile communication technologies do not meet the energy consumption criteria.

MTS and NB-IoT technologies are two branches of development of 1oT technologies for LPWA devices. NB-IoT and MTS technologies use ultra-narrowband communications, repeatable transmissions, thin client network protocols, and other design solutions that sacrifice speed, latency, and mobility characteristics at the expense of the ability to provide LPWA services.

Grantless uplink transmission means that the eNB configures the resource and transmission format for the user in advance. When the user has data to transmit, it will be transmitted in a predetermined mode and in a predetermined resource.

Figure 1 shows a block diagram of a communication system in some of the embodiments of the present invention. Referring to the illustration of FIG. 1, in a scenario in which LPWA services are provided using NB-IoT/MTC technologies, LPWA devices 102-105 are connected to gNB/eNB 101. As an example, LPWA device 102 may be a temperature sensor that transmits temperature information to the base station at regular intervals; the LPWA device 103 may be a smart meter that transmits power consumption information to the base station at regular intervals; LPWA device 104 may be a smart door lock that transmits lock status information to the base station at regular intervals; and the LPWA device 105 may be an intelligent water meter that transmits water consumption information to the base station at regular intervals. Optionally, the data transmitted by the devices 102-105 may have similar characteristics, i.e., reduced data rate and reduced transmission cost, however, the environment of the LPWA devices 102-105 may be relatively unfavorable and not suitable for sidelink (Sidelink) transmissions. ). Optionally, communication between gNB/eNB 101 and LPWA devices 102-05 may be via NB-IoT/MTC technologies. In the case of dropping the requirements for rate, delay, and mobility characteristics, data from the LPWA devices 102-105 is obtained by configuring the retransmission mode for the LPWA device 102-105.

Figure 2 shows a diagram of the data transfer procedure used in the current state of the art. In accordance with the illustration of figure 2, optionally, the user equipment (UE) is a LPWA device. In the prior art data transmission procedure between a UE and an eNB, since an eNB does not allocate time-frequency resources to a UE in advance, a random access procedure between a UE and an eNB must be performed first. Upon completion of the random access procedure, the eNB may transmit uplink scheduling grants to the UE, and the user equipment may transmit data to the eNB.

Optionally, due to the unfavorable environment of LPWA devices and their low data transmission power, it may be difficult to connect to an eNB by a random access procedure. Since the amount of data transmitted by the LPWA device at one time is small, if a random access procedure having a higher power consumption is performed before each transmission, the overall loss in the LPWA device may increase, and accordingly, the overall efficiency may be reduced.

Figure 3 shows a diagram of the data transmission procedure in some of the embodiments of the present invention. According to the illustration of Fig. 3, optionally, the UE is an LPWA device. Optionally, the UE and the eNB are connected via a grantless uplink transmission mode. That is, at the initial connection, the eNB pre-configures the information needed in the user equipment for data transmission. Such information includes at least one of the following: the time-frequency position of the data channel transmitted by the user equipment, the amount of data transmitted each individual time, the occurrence period of the data channel reserved for the user equipment, and the data transmission format. Optionally, after the first configuration, the user equipment can transmit to the eNB data satisfying the predetermined amount and format based on the predetermined time-frequency position and occurrence period of the data channel reserved by the eNB for the UE. Otherwise, the user equipment does not communicate with the eNB. Also, since the user equipment is an LPWA device, it can transmit data with repetitions. When using data retransmissions, the energy of the signals, at low power of individual transmissions, can add up, and as a result, data can be received without difficulty by the eNB. Accordingly, in order to improve the success rate of data transmission from the user equipment to the eNB, it is necessary to determine the number of data retransmissions.

The number of retransmissions is typically configured by the base station or determined by selecting the number from a set of values via an indicator in the downlink control information (DCI) received by the LPWA device.

However, there is no satisfactory way to determine the number of retransmissions, which leads to problems of an inadequate number of retransmissions for the LPWA device, and hence a reduced data transmission success rate.

Figure 4 shows a flowchart for a data transmission method in some of the embodiments of the present invention. As an example, the proposed method can be applied to a terminal with no grant scheduling. The method includes the steps described below.

In step 401, a set of transmission parameters is obtained.

The terminal in some of the embodiments of the present invention may be a user equipment for which grant-free scheduling is applied. That is, the connection between the user equipment and the base station is configured only once. On subsequent connections, the UE may directly transmit data of a predetermined format and/or amount to a base station using a predetermined frequency/time resource. Optionally, such a grantless scheduling UE in some of the embodiments of the present invention may be an LPWA device.

Optionally, the terminal may obtain the transmission parameter set from the grantless scheduling connection information configured by the base station. That is, when a base station performs a grantless scheduling connection, a predetermined transmission resource, a predetermined format and/or amount of data to be transmitted, and a set of transmission parameters are also included.

Optionally, the data transmission parameter set includes at least one transmission parameter. Optionally, each transmission parameter finally indicates a different target number n of retransmissions.

Optionally, the base station configures a set of transmission parameters by transmitting a first configuration signaling. The first configuration signaling includes at least one of radio resource control (RRC) signaling, medium access control (MAC) layer control element (CE) signaling, or physical layer signaling.

In step 402, downlink control information (DCI) is received, wherein the DCI includes an information field.

Optionally, the base station transmits the DCI to the UE over the channel at the same time as preconfiguring the UE by the base station. In one example, when the UE connects to the base station for the first time, the base station transmits the DCI to the UE on the channel, the DCI includes an information field. In one example, the UE may be an LPWA device, and the connection between the user equipment and the base station may not be the first time, that is, the UE has already transmitted data to the terminal before this connection. In this case, the terminal may send feedback information to the UE based on the information received from the UE. The feedback information includes a DCI, and the DCI includes an information field.

In step 403, the target number n of retransmissions is determined based on said set of transmission parameters and information field.

Optionally, the information field included in the DCI has at least 2 bits and indicates the number in binary form. The specified number represents the corresponding transmission parameter in the transmission parameter set. In one example, the information field included in the DCI may be a field having 3 bits, wherein the binary number indicated by this three-bit field may be "110", and "110" may indicate the fifth parameter in the transmission parameter set. Optionally, the target number n of retransmissions may be determined by a transmission parameter that corresponds to the number indicated in the information field in the transmission parameter set. Optionally, the transmission parameter may be a candidate number of retransmissions, that is, the transmission parameter may be a parameter that is used as a target number of n retransmissions and is a candidate parameter in the transmission parameter set, where n is a positive integer. Moreover, n is a multiple of some positive integer. In one example, n is an integer power of 2.

At step 404, data is transmitted, in the target transmission resource, based on the target transmission mode for the target number n of retransmissions.

Optionally, the target transmission resource may be a predetermined transmission resource. Optionally, a predetermined transmission resource is set in the grant-free scheduling configuration procedure. In the grantless scheduling configuration procedure, in addition to the uplink scheduling grant, the base station may configure resources for the UE. Optionally, the base station may configure, for the UE, a time-frequency position of the predetermined transmission resource, a predetermined transmission mode, a size of the predetermined transmission resource, and a period of data transmissions. Optionally, after determining the target number n of retransmissions, the UE based on the grant-free scheduling configuration may transmit data in the target transmission resource based on the target transmission mode. Optionally, the target transmission mode may be a predetermined transmission mode.

So, by the method proposed in some of the embodiments of the present invention, by obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of the unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions, increasing the transmission success rate.

Figure 5 shows a flowchart for a data transmission method in some of the embodiments of the present invention. As an example, the proposed method can be applied to a terminal with no grant scheduling. The method includes the steps described below.

In step 501, a first reference parameter and a first set of coefficients are obtained. The first reference parameter is configured using a preconfigured number of retransmissions. The first set of coefficients is predetermined in the protocol.

The first reference parameter is a parameter by which a target number n of retransmissions, used as a reference, can be obtained. In this case, the first reference parameter is a positive integer.

The first set of coefficients is a set including at least one coefficient. Optionally, the coefficient is a number that can correct the first reference parameter with a mathematical operation to obtain an additional parameter.

Optionally, the first reference parameter is determined based on the configured number of retransmissions. In one example, the preconfigured number of retransmissions indicates the number of retransmissions indicated to the user equipment by the base station for the first time in the grant-free scheduling procedure. Meanwhile, a preconfigured number of retransmissions may be determined as the first reference parameter. In this case, this means that the first set of coefficients is used to correct the first reference parameter through a mathematical operation using the coefficients from the first set of coefficients. Optionally, the first set of coefficients in this case is defined as predetermined in the protocol, i.e. the coefficients are selected according to the respective standards. In one example, it may be predetermined in the protocol that the target number of retransmissions should be an integer power of 2. In this case, the first set of coefficients is set in accordance with the predetermined in the protocol, i.e., it includes integer powers of 2. Wherein, according to protocol requirements, the first reference parameter must also be set to an integer power of 2.

At step 502, a set of transmission parameters is determined based on the first reference parameter and the first set of coefficients.

Optionally, by multiplying the first reference parameter by each of the coefficients in the first coefficient set, transmission parameters defined by the first reference parameter corresponding to each coefficient in the first coefficient set may be obtained, with all transmission parameters forming a transmission parameter set.

Or,

optionally, by summing the first reference parameter with each of the coefficients in the first coefficient set, transmission parameters defined by the first reference parameter corresponding to each coefficient in the first coefficient set can be obtained, with all transmission parameters forming a transmission parameter set.

In step 503, a DCI is received, with the DCI including an information field.

Optionally, the base station transmits the DCI to the UE over the channel at the same time as preconfiguring the UE by the base station. In one example, when the UE connects to the base station for the first time, the base station transmits the DCI to the UE on the channel, the DCI includes an information field. In one example, the UE may be a LPWA device, and the connection between the UE and the base station is not the first time, that is, the UE has already transmitted data to the terminal before this connection. In this case, the terminal may send feedback information to the UE based on the information received from the UE. The feedback information includes a DCI, and the DCI includes an information field.

In step 504, the target number n of retransmissions is determined based on said set of transmission parameters and information field, where n is a positive integer.

Optionally, the information field included in the DCI has at least 2 bits and indicates a number in binary form. The specified number is the corresponding transmission parameter in the transmission parameter set. In one example, the information field included in the DCI may be a field having 3 bits, wherein the binary number indicated by this 3-bit field may be "110", and "110" may indicate the fifth parameter in the transmission parameter set. Optionally, the target number n of retransmissions may be determined by a transmission parameter that corresponds to the number indicated in the information field in the transmission parameter set. The value of n is a positive integer. Moreover, n is a multiple of some positive integer. In one example, n is an integer power of 2.

Optionally, the transmission parameter indicated in the information field can be directly used as the target number n of retransmissions. In this case, the specified transmission parameter must satisfy the requirements of the protocol or the base station for the target values n of the number of retransmissions. In one example, the protocol may require that the target number n of retransmissions be a positive integer power of 2. The first reference parameter may be 2, the first set of coefficients may be {1/8, 1/4, 1/2, 2} , and the resulting set of transmission parameters may be {1/4, 1/2, 1, 4}. Since the protocol requires the target number n of retransmissions to be a positive integer power of 2, in this case the transfer parameter indicated by the target field can only be 4.

In step 505, data is transmitted, in the target transmission resource, based on the target transmission mode for the target number n of retransmissions.

Optionally, the target transmission resource may be a predetermined transmission resource. Optionally, a predetermined transmission resource is set in the grant-free scheduling configuration procedure. In the grantless scheduling configuration procedure, in addition to the uplink scheduling grant, the base station may configure resources for the UE. Optionally, the base station may configure, for the UE, a time-frequency position of the predetermined transmission resource, a predetermined transmission mode, a size of the predetermined transmission resource, and a period of data transmissions. Optionally, after determining the target number n of retransmissions, the UE based on the grant-free scheduling configuration may transmit data in the target transmission resource based on the target transmission mode. Optionally, the target transmission mode may be a predetermined transmission mode.

So, by the method proposed in some of the embodiments of the present invention, by obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of an unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions, which improves the transmission success rate. By determining the reference parameter specified by the base station and the set of coefficients predetermined in the protocol, and determining the transmission parameter set based on the reference parameter and the coefficient set, the final number of retransmissions is determined depending on the actual state of the terminal and according to the requirements of the protocol, which further improves the transmission success rate for the LPWA device.

Fig. 6 represents an alternative embodiment of the present invention based on FIG. 5, showing a flowchart for a data transmission method in some of the embodiments of the present invention. In some of the embodiments of the present invention, step 501 may be replaced by step 5021. Take this method as an example to illustrate that the proposed method is applicable to a terminal with no grant scheduling. The method includes the steps described below.

In step 5021, a first reference parameter and a first set of coefficients are obtained, wherein the first reference parameter is configured using a second configuration signaling transmitted by the base station, and the first set of coefficients is predetermined in the protocol.

Optionally, the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. Optionally, the second configuration signaling is transmitted by the base station to the UE, wherein it configures the first reference parameter for the UE. Optionally, the first reference parameter configured by the second configuration signaling has nothing to do with the number of retransmissions indicated to the user equipment by the base station at the beginning in the grant-free scheduling procedure. Optionally, the configurable first reference parameter may be the first reference parameter predefined in the protocol. Optionally, the first set of coefficients is predefined and defined by the protocol.

Optionally, the first reference parameter and the first set of coefficients in the embodiments of the present invention may also be implemented as the second reference parameter and the second set of coefficients, for example, in the embodiments of the present invention corresponding to Fig.7.

So, by the method proposed in some of the embodiments of the present invention, by obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of an unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions, increasing the transmission success rate. By configuring the reference parameter by the base station and presetting a set of coefficients in the protocol, the selection of the number of retransmissions can better meet the requirements of the base station and further improve the transmission success rate.

Fig. 7 shows a flowchart for a data transmission method in some of the embodiments of the present invention. As an example, the proposed method can be applied to a terminal with no grant scheduling. The method includes the steps described below.

In step 701, a second reference parameter and a second set of coefficients are obtained, wherein the second reference parameter is configured using a preconfigured number of retransmissions and the second coefficient set is configured using a third configuration signaling transmitted by the base station.

The preconfigured number of retransmissions indicates the number of retransmissions indicated to the user equipment by the base station for the first time in the grant-free scheduling procedure. Meanwhile, the preconfigured number of retransmissions may be determined as the second reference parameter.

Optionally, the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. Optionally, a third configuration signaling is transmitted by the base station to the UE, wherein it configures the second set of coefficients for the UE. Optionally, the second coefficient set configured using the third configuration signaling has nothing to do with the second coefficient set defined in the protocol. Optionally, the second set of coefficients is a set including at least one coefficient. Optionally, the coefficient is a number that can adjust the second reference parameter with a mathematical operation to obtain an additional parameter.

At step 702, a DCI is received, with the DCI including an information field.

Optionally, the base station transmits the DCI to the UE over the channel at the same time as preconfiguring the UE by the base station. In one example, when the UE connects to the base station for the first time, the base station transmits the DCI to the UE on the channel, the DCI includes an information field. In one example, the UE may be an LPWA device, and the connection between the UE and the base station may not be the first time, that is, the UE has already transmitted data to the terminal before this connection. In this case, the terminal may send feedback information to the UE based on the information received from the UE. The feedback information includes a DCI, and the DCI includes an information field.

In step 703, a target coefficient is determined from the second set of coefficients based on said information field.

Optionally, the information field included in the DCI has at least 2 bits and indicates a number in binary form. The specified number is the corresponding transmission parameter in the transmission parameter set. In one example, the information field included in the DCI may be a field having 3 bits, wherein the binary number indicated by this three-bit field may be "110", and "110" may indicate the fifth coefficient in the second set of coefficients. That is, the fifth coefficient from the second coefficient set is selected as the target coefficient.

At 704, a reference number of retransmissions is determined based on the target rate and the second reference parameter.

Optionally, the reference number of retransmissions is determined by performing a mathematical operation on the target coefficient and the second reference parameter. Optionally, the math operation is configured by the base station during the grant-free scheduling procedure.

In one example, the target factor may be 2, the second reference parameter may be 8, and the mathematical operation configured by the base station during the grant-free scheduling procedure is to multiply the target factor by the second reference parameter to obtain the reference number of retransmissions. In this case, the received reference number of retransmissions will be 2×8=16.

In one example, the target factor may be 3, the second reference parameter may be 6, and the mathematical operation configured by the base station during the grant-free scheduling procedure is to add the target factor and the second reference parameter to obtain a reference number of retransmissions. In this case, the received reference number of retransmissions will be 3+6=9.

In step 705, a target number n of retransmissions is determined based on the reference number of retransmissions.

Optionally, the target number n of retransmissions must be a number from a set of target values for the number of retransmissions. Optionally, the set of retransmission number targets is a set of possible retransmission number targets. Optionally, each possible target value of the number of retransmissions in the set of target values of the number of retransmissions may satisfy the same mathematical condition. In one example, each possible retransmission number target in the retransmission number target set is an integer power of 2. In one example, each possible retransmission number target in the retransmission number target set is a multiple of a predetermined value.

When the reference number of retransmissions determined based on the target coefficient and the second reference parameter does not belong to the set of target values of the number of retransmissions, a value from the set of target values of the number of retransmissions that is greater than or equal to the reference number of retransmissions and has the smallest difference from the reference number retransmissions, select n retransmissions as the target number.

In one example, each possible retransmission number target in the retransmission number target set is a multiple of 3, where the retransmission number target set would be {21, 24, 27, 30}. The target factor is 5 and the second reference parameter is 5. The mathematical operation configured by the base station during the grant-free scheduling procedure is to multiply the target factor by the second reference parameter to obtain a reference number of retransmissions. The received reference number of retransmissions in this case will be 5×5=25, and it does not belong to the set of target values of the number of retransmissions.

The number greater than or equal to 25 and having the smallest difference from 25 in the set of retransmission number targets, that is, 27, is selected as the target retransmission number n.

In one example, each possible retransmission number target in the retransmission number target set is a positive integer power of 2, where the retransmission number target set would be {8, 16, 32, 64}. The target factor is 12 and the second reference parameter is 6. The mathematical operation configured by the base station during the grant-free scheduling procedure is to add the target factor and the second reference parameter to obtain a reference number of retransmissions. The obtained reference number of retransmissions in this case will be 6+12=18, and it does not belong to the set of target values of the number of retransmissions. The number greater than or equal to 18 and having the smallest difference from 18 in the target retransmission number set, that is, 32, is selected as the target retransmission number n.

Meanwhile, during configuration by the base station, the target coefficient and the second reference parameter are configured in advance, that is, the target coefficient and the second reference parameter are subjected to a mathematical operation configured by the base station during the grant-free scheduling procedure, while the received reference number of retransmissions does not exceed the maximum value in the set of target values for the number of retransmissions.

Optionally, the second reference parameter and the second set of coefficients in the embodiments of the present invention may also be implemented as the first reference parameter and the first set of coefficients, for example, in the embodiments of the present invention corresponding to Fig.5 or Fig.6.

So, by the method proposed in some of the embodiments of the present invention, by obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of the unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions, increasing the transmission success rate. By selecting a preconfigured number of retransmissions as a reference parameter, and configuring a set of coefficients with the third configuration signaling, obtaining a reference number of retransmissions with a mathematical operation, and determining a target number of retransmissions n based on the reference number of retransmissions, the number of retransmissions can be adjusted even more accurately, which allows more accurate fulfillment of the channel conditions for the UE and thus further improves the transmission success rate for the LPWA device.

8 shows a flowchart for a method for receiving data in some of the embodiments of the present invention. As one example, the proposed method can be applied to a base station. The method includes the steps described below.

In step 801, a DCI including an information field is transmitted.

Optionally, the base station transmits the DCI to the UE over the channel at the same time as preconfiguring the UE by the base station. In one example, when the UE connects to the base station for the first time, the base station transmits the DCI to the UE on the channel, the DCI includes an information field. In one example, the UE may be a LPWA device, and the connection between the UE and the base station is not the first time, that is, the UE has already transmitted data to the terminal before this connection. In this case, the terminal may send feedback information to the UE based on the information received from the UE. The feedback information includes a DCI, and the DCI includes an information field.

In step 802, data is received from the terminal using a predetermined time and frequency.

Optionally, a predetermined transmission resource is set in the grant-free scheduling configuration procedure. In the grant-free scheduling configuration procedure, in addition to the uplink scheduling grant, the base station may configure resources for the UE. Optionally, the base station may configure, for the UE, a time-frequency position of the predetermined transmission resource, a predetermined transmission mode, a size of the predetermined transmission resource, and a period of data transmissions. Optionally, the base station may receive data from the UE based on a predetermined time-frequency resource and period of data transmissions.

Here, after receiving data from the UE, the base station will transmit feedback information about the reception situation. The feedback information may include the transmission of information including the response symbol to the UE. Optionally, the response character may include an acknowledgment character (ACK) or a negative acknowledge character (NACK). After receiving the information including the response symbol, the UE will adjust the target number n of retransmissions according to the receive symbol. Optionally, the DCI may also include a retransmission instruction. When the information received by the user equipment includes NACK, the UE resets the target number n of retransmissions based on the retransmission instruction. Optionally, the method of said reset includes, but is not limited to, directly configuring a new target number n of retransmissions by the terminal and performing a mathematical operation on the original target value n of the number of retransmissions.

So, using the method proposed in some of the embodiments of the present invention, by transmitting DCI and receiving data from the terminal within a predetermined time and frequency, data transmitted by repeated transmissions can be received. Here, by transmitting feedback information about the received data, data that has not been successfully transmitted is reported in a timely manner, which can further improve the transmission success rate of the LPWA device.

Figure 9 shows a flow chart for a method for transmitting and receiving data in some of the embodiments of the present invention. As one example, the proposed method can be applied to a user equipment and a base station. The method includes the steps described below.

In step 901, the base station configures the target data for grant-free scheduling for the UE.

In the grantless scheduling configuration procedure, in addition to the uplink scheduling grant, the base station may configure resources for the UE. Optionally, the target data may be predetermined data. Optionally, the base station may configure, for the UE, a time-frequency position of the predetermined transmission resource, a predetermined transmission mode, a size of the predetermined transmission resource, and a period of data transmissions.

In step 902, the base station configures a set of transmission parameters for the UE.

Optionally, the data transmission parameter set includes at least one transmission parameter. Optionally, each transmission parameter finally indicates a different target number n of retransmissions.

Optionally, the base station configures a set of transmission parameters by transmitting a first configuration signaling. The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Optionally, obtaining a set of transmission parameters may include obtaining a reference parameter and obtaining a set of coefficients. The reference parameter and the coefficient set are used to determine the transmission parameter set.

Optionally, the reference parameter is configured with a second configuration signaling transmitted by the base station, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. Or, the reference parameter is configured using a preconfigured number of retransmissions.

Optionally, the coefficient set is configured with a third configuration signaling transmitted by the base station, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. Or the first set of coefficients is predefined in the protocol.

In step 903, the base station configures the DCI for the UE.

Optionally, the DCI base station transmits to the UE on the channel simultaneously with preconfiguring the UE by the base station. In one example, when the UE connects to the base station for the first time, the base station transmits the DCI to the UE on the channel, the DCI includes an information field. In one example, the UE may be a LPWA device, and the connection between the UE and the base station is not the first time, that is, the UE has already transmitted data to the terminal before this connection. In this case, the terminal may send feedback information to the UE based on the information received from the UE. The feedback information includes a DCI, and the DCI includes an information field.

In step 904, the target number n of retransmissions is determined based on the target data for grant-free scheduling, the set of transmission parameters, and the information field in the DCI.

Optionally, the target number n of retransmissions may be directly indicated in the transmission parameter information field of the transmission parameter set.

Optionally, the target number n of retransmissions may be determined using the reference number of retransmissions in the target transmission parameters.

In step 905, the data is transmitted.

Optionally, the base station may configure, for the UE, a time-frequency position of the predetermined transmission resource, a predetermined transmission mode, a size of the predetermined transmission resource, and a period of data transmissions. Optionally, after determining the target number n of retransmissions, the UE, based on the grant-free scheduling configuration, may transmit data in the target transmission resource based on the target transmission mode.

Here, after receiving data from the UE, the base station will transmit feedback information about the reception situation. The feedback information may include the transmission of information including the response symbol to the UE. Optionally, the response symbol may include an ACK or a NACK. After receiving the information including the response symbol, the UE adjusts the target number n of retransmissions according to the receive symbol.

So, by the method proposed in some of the embodiments of the present invention, by obtaining the transmission parameter set and the information field in the downlink control information, the number of retransmissions in the terminal can be determined, whereby the number of retransmissions can be acceptable. This solves the problem of the unacceptably high number of retransmissions for LPWA devices due to the inability to determine an appropriate number of retransmissions, increasing the transmission success rate. Through a variety of methods for determining the number of retransmissions, it can be determined at both the base station side and the terminal side. Here, by transmitting feedback information about the received data, data that has not been successfully transmitted is reported in a timely manner, which can further improve the transmission success rate of the LPWA device.

Figure 10 shows a block diagram of a device for data transmission in some of the embodiments of the present invention. The device may be implemented as a terminal as a whole, or as part of it, through software, hardware, or a combination of software and hardware. The device includes a processing module 1001, a receiving module 1002, and a transmitting module 1003.

The processing module 1001 is configured to obtain a set of transmission parameters.

The receiving unit 1002 is configured to receive downlink control information including the information field.

The processing module 1001 is also configured to determine a target number n of retransmissions based on said set of transmission parameters and the information field, where n is a positive integer.

The transmission module 1003 is configured to transmit data, in the transmission target resource, based on the target transmission mode for the target retransmission number n.

In some of the embodiments of the present invention, the processing module 1001 is configured to determine one of the target possible number of retransmissions in said set of transmission parameters based on said information field as the target number n of retransmissions.

In some of the embodiments of the present invention, the set of transmission parameters includes at least one possible number of retransmissions.

The receiving module 1002 is configured to receive a first configuration signaling for configuring a set of transmission parameters from the base station.

The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, the processing module 1001 is configured to obtain a first reference parameter and a first set of coefficients.

The processing unit 1001 is configured to determine a set of transmission parameters based on the first reference parameter and the first set of coefficients.

In some of the embodiments of the present invention, the processing module 1001 is configured to determine a set of transmission parameters based on the products of the first reference parameter and each coefficient from the first set of coefficients.

Or

the processing unit 1001 is configured to determine the transmission parameter set based on the sums of the first reference parameter and each coefficient of the first coefficient set.

In some embodiments of the present invention, the receiving module 1002 is configured to receive a second configuration signaling from the base station for configuring the first reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. Or

the processing unit 1001 is configured to determine the first reference parameter based on the preconfigured number of retransmissions, the preconfigured number of retransmissions being the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the processing unit 1001 is configured to determine the first reference parameter based on the configured number of retransmissions.

In some of the embodiments of the present invention, the receiving module 1002 is configured to receive a third configuration signaling from the base station to configure the first set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

Or

the first set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the transmission parameter set includes a second coefficient set, and the second coefficient set includes at least one coefficient parameter.

The processing unit 1001 is configured to obtain a second reference parameter.

The processing module 1001 is configured to determine a target coefficient from the second coefficient set based on said information field.

The processing unit 1001 is configured to determine a reference number of retransmissions based on the target ratio and the second reference parameter.

The processing unit 1001 is configured to determine a target number of retransmissions n based on the reference number of retransmissions.

In some of the embodiments of the present invention, said coefficient parameter includes a product coefficient and/or a difference coefficient.

The reference number of retransmissions is the product of the target coefficient and the second reference parameter, if the target coefficient is the coefficient of the product.

Or

the reference number of retransmissions is the sum of the target coefficient and the second reference parameter if the target coefficient is a difference coefficient.

In some of the embodiments of the present invention, the set of transmission parameters includes a set of targets for the number of retransmissions.

The processing unit 1001 is configured to determine a target number of retransmissions n based on a reference number of retransmissions and a set of target values for the number of retransmissions.

The target number of retransmissions n is a value from the set of target values of the number of retransmissions that is greater than or equal to the reference number of retransmissions and has the smallest difference from the reference number of retransmissions, wherein the set of target values of retransmissions includes at least one possible target value of the number of retransmissions gears.

In some of the embodiments of the present invention, each possible retransmission number target value from the set of retransmission number targets is an integer power of 2.

Or

each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is a multiple of a predetermined value.

In some embodiments of the present invention, the receiving module 1002 is configured to receive, from the base station, a second configuration signaling for configuring a second reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. .

Or

the processing unit 1001 is configured to determine the second reference parameter based on the preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling.

Or

the processing unit 1001 is configured to determine the second reference parameter based on the configured number of retransmissions.

In some of the embodiments of the present invention, the receiving module 1002 is configured to receive, from the base station, a third configuration signaling for configuring a second set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. .

Or

the second set of coefficients is determined by pre-setting in the protocol.

In some of the embodiments of the present invention, the downlink control information further includes a retransmission instruction.

The processing unit 1001 is configured to reset the target number n of retransmissions based on the retransmission instruction.

It should be noted that in the data transmission device proposed in the above embodiments of the present invention, the division into the above-mentioned functional modules is indicated solely as an example. In practical application, the functions described above can be distributed to various functional modules, according to requirements, i.e. the internal structure of the equipment, in order to perform all or part of the functions described above, can be divided into other functional modules.

Figure 11 shows a block diagram of a device for receiving data in some of the embodiments of the present invention. The device may be implemented as a terminal in whole, or in part, by software, hardware, or a combination of software and hardware. The device includes a transmission module 1101 and a reception module 1102.

The transmission module 1101 is configured to transmit downlink control information including the information field, wherein the terminal is configured to determine a target retransmission number n based on the transmission parameter set and the information field.

The receiving module 1102 is configured to receive data from the terminal within a predetermined time and frequency.

In some of the embodiments of the present invention, the transmission module 1101 is configured to send a first configuration signaling to the terminal to configure a set of transmission parameters.

The first configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, a set of transmission parameters is obtained based on a reference parameter and a set of coefficients.

In some of the embodiments of the present invention, the transmission module 1101 is configured to send a second configuration signaling to the terminal to configure the reference parameter.

The second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

In some of the embodiments of the present invention, the transmission module 1101 is configured to send a third configuration signaling to the terminal to configure the coefficient set.

The third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling.

It should be noted that in the device for receiving data proposed in the above embodiments of the present invention, the division into the above-mentioned functional modules is indicated solely as an example. In practical application, the functions described above can be distributed to various functional modules, according to requirements, i.e. the internal structure of the equipment, in order to perform all or part of the functions described above, can be divided into other functional modules.

12 is a block diagram of a terminal for transmitting and receiving data in some of the embodiments of the present invention. The UE includes the following.

Processor 1201 includes one or more processor cores. The processor 1201 executes various functional applications and performs information processing by executing computer programs and modules.

Receiver 1202 and transmitter 1203 may be implemented as a communications component. The communication component may be a communication chip.

Memory 1204 is connected to processor 1201 via bus 1205.

Memory 1204 is configured to store at least one instruction. The processor 1201 is configured to execute at least one instruction to perform all of the operations in the method embodiments discussed above.

The present invention also provides a computer device including a memory and a processor. The memory is configured to store at least one instruction, at least one program, set of codes, or set of instructions. Said at least one instruction, at least one program, set of codes or set of instructions is downloaded and executed by the processor in order to perform a data reception method or a data transmission method.

The present invention also provides a computer-readable storage medium. The computer-readable storage medium stores at least one instruction, at least one program, a set of codes or a set of instructions, and said at least one instruction. Said at least one instruction, at least one program, set of codes or set of instructions is downloaded and executed by the processor in order to perform a data reception method or a data transmission method.

The present invention also provides a computer program product, wherein when the computer program product is executed on a computer, a data receiving method or a data transmission method is executed by the computer.

Those skilled in the art will understand that all or part of the operations in the various methods in the above embodiments of the present invention may be performed by a program instructing the appropriate hardware. The program may be stored on a computer-readable storage medium. Such a medium may be a computer-readable storage medium included in the memory in the above embodiments of the present invention; or a computer-readable storage medium that exists separately and is not built into the terminal. The computer-readable storage medium stores at least one instruction, at least one program, set of codes, or set of instructions. Said at least one instruction, at least one program, set of codes or set of instructions is downloaded and executed by the processor in order to perform a data reception method or a data transmission method.

Optionally, the machine-readable storage medium may include read-only memory (ROM), random access memory (RAM), solid state drive (SSD), optical disk, and the like. RAM memory may include resistive random access memory (ReRAM) and dynamic random access memory (DRAM). The aforementioned serial numbers of the embodiments of the present invention are used solely for the purpose of description and do not reflect any advantages or disadvantages of the embodiments of the invention.

Those skilled in the art will understand that all or part of the operations in the various methods in the above embodiments of the present invention may be implemented by hardware or by a program that instructs the appropriate hardware. The program may be stored on a computer-readable storage medium, as mentioned above. The storage medium may be a read-only memory, a magnetic or optical disk, or the like.

The above description includes only optional embodiments of the present invention. All modifications, equivalent substitutions, improvements, and the like, made within the spirit and intent of the present invention, fall within the scope of the present invention.

The communication systems and service scenarios described in the embodiments of the present invention are intended to illustrate the technical solutions proposed therein in more detail and do not impose restrictions on these technical solutions.

Those skilled in the art will appreciate that the technical solutions provided by the embodiments of the present invention are equally applicable to similar technical challenges arising from the development of communication systems and the emergence of new service scenarios.

It should be noted that "multiple" or "several" in this document should be understood as "two or more". "And/or" describes the link relationship between the corresponding objects and indicates that three types of relationship are possible, for example, A and/or B, which means: only A is present, A and B are both present, or only B is present. /" generally indicates that the corresponding objects are related by the "or" relationship.

Specialists in the art, after reading the description or after the practical application of the invention described in this document, can be found other options for its implementation. This application is intended to cover all changes, uses or modifications of the present invention without departing from its basic intent, including all departures from the present invention which are known in the art or conventionally practiced in the art. The foregoing description and examples are to be considered illustrative only, the true scope and spirit of the present invention being defined by the following claims.

It is to be understood that the present invention is not limited to the specific structure described above and illustrated in the accompanying drawings, and many different modifications and changes may be made within the scope of the present invention. The scope of the present invention is limited only by the appended claims.

Claims (73)

1. A data transmission method performed by a terminal, including: obtaining a set of transmission parameters, and the set of transmission parameters includes at least one possible value of the number of retransmissions; receiving downlink control information including the information field; determining a target possible number of retransmissions in said set of transmission parameters based on said information field as a target number of retransmissions n, where n is a positive integer; And data transmission, in the transmission target resource, based on the target transmission mode for the target number n of retransmissions. 2. The method of claim 1, further comprising: receiving, from the base station, a first configuration signaling for configuring a set of transmission parameters; wherein the first configuration signaling includes at least one of radio resource control (RRC) signaling, medium access control (MAC) layer control element (CE) signaling, or physical layer signaling. 3. The method of claim 1, wherein obtaining a set of transmission parameters includes: obtaining a first reference parameter and a first set of coefficients; And determining a set of transmission parameters based on the first reference parameter and the first set of coefficients. 4. The method of claim 3, wherein determining the transmission parameter set based on the first reference parameter and the first coefficient set comprises: determining a set of transmission parameters based on the products of the first reference parameter and each coefficient from the first set of coefficients; or determining a set of transmission parameters based on the sums of the first reference parameter and each coefficient from the first set of coefficients. 5. The method according to claim 3 or 4, further comprising: receiving, from the base station, a second configuration signaling for configuring a first reference parameter, wherein the second configuration signaling includes at least one of radio resource control (RRC) signaling, control element (CE) signaling of a medium access control (MAC) layer or physical layer signaling; or determining a first reference parameter based on a preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when performing grant-free scheduling; or determining a first reference parameter based on the configured number of retransmissions. 6. The method according to claim 3 or 4, further comprising: receiving, from the base station, a third configuration signaling for configuring a first set of coefficients, wherein the third configuration signaling includes at least one of radio resource control (RRC) signaling, control element (CE) signaling of a medium access control (MAC) layer or physical layer signaling; or determination of the first set of coefficients by pre-setting in the protocol. 7. The method according to claim 1, wherein the set of transmission parameters includes a second set of coefficients, and the second set of coefficients includes at least one coefficient parameter; while determining the target number n of retransmissions based on the above set of transmission parameters and information field includes: obtaining a second reference parameter; determining a target coefficient from the second set of coefficients based on said information field; determining a reference number of retransmissions based on the target rate and the second reference parameter; And determining a target number n of retransmissions based on the reference number of retransmissions. 8. The method according to p. 7, in which the coefficient parameter includes a product coefficient and/or a difference coefficient; the reference number of retransmissions is the product of the target coefficient and the second reference parameter, if the target coefficient is the coefficient of the product, or the reference number of retransmissions is the sum of the target coefficient and the second reference parameter if the target coefficient is a difference coefficient. 9. The method of claim 7, wherein the set of transmission parameters includes a set of target values for the number of retransmissions, determining the target number n of retransmissions based on the reference number of retransmissions includes: determining a target number of retransmissions n based on a reference number of retransmissions and a set of target values for the number of retransmissions, wherein the target number n of retransmissions is a value from the set of target values of the number of retransmissions, which is greater than or equal to the reference number of retransmissions and has the smallest difference from the reference number of retransmissions, while the set of target values of retransmissions includes at least one possible target value number of retransmissions. 10. The method according to claim 9, in which each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is an integer power of 2; or each possible target value of the number of retransmissions from the set of target values of the number of retransmissions is a multiple of a predetermined value. 11. The method according to any one of paragraphs. 7-10, further comprising: receiving a second configuration signaling to configure a second reference parameter, wherein the second configuration signaling includes at least one of radio resource control (RRC) signaling, medium access control (MAC) layer control element (CE) signaling, or physical layer signaling; or determining a second reference parameter based on a preconfigured number of retransmissions, wherein the preconfigured number of retransmissions is the number of retransmissions configured by the base station when grant-free scheduling is performed; or determining a second reference parameter based on the configured number of retransmissions. 12. The method according to any one of paragraphs. 7-10, further comprising: receiving, from the base station, a third configuration signaling for configuring a second set of coefficients, wherein the third configuration signaling includes at least one of the following: radio resource control (RRC) signaling, control element (CE) signaling of a medium access control (MAC) layer or physical layer signaling; or determination of the second set of coefficients by pre-setting in the protocol. 13. The method of claim 1, wherein the downlink control information further includes a retransmission instruction; wherein the method further comprises: resetting the value of the target number n of retransmissions based on the retransmission instruction. 14. The method of receiving data performed by the base station, including: transmitting downlink control information including an information field, wherein the terminal is configured to determine a target number n of retransmissions based on the set of transmission parameters and the information field; And receiving data from the terminal within a predetermined time and frequency, wherein the data is transmitted by the terminal in the target transmission resource based on the target transmission mode for the target retransmission number n, when the terminal determines the target possible number of retransmissions in said transmission parameter set based on the information field as the target number of n retransmissions. 15. The method of claim 14, further comprising: transmitting to the terminal a first configuration signaling for configuring a set of transmission parameters; wherein the first configuration signaling includes at least one of radio resource control (RRC) signaling, medium access control (MAC) layer control element (CE) signaling, or physical layer signaling. 16. The method of claim 14, wherein the set of transmission parameters is obtained based on the reference parameter and the set of coefficients. 17. The method of claim 16, further comprising: transmitting to the terminal a second configuration signaling for configuring the reference parameter, wherein the second configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. 18. The method of claim 16, further comprising: transmitting to the terminal a third configuration signaling for configuring a set of coefficients, wherein the third configuration signaling includes at least one of RRC signaling, MAC CE signaling, or physical layer signaling. 19. Computer device for data transmission, including: processor and memory, wherein the memory is configured to store at least one instruction, at least one program, code set, or instruction set, and said at least one instruction, at least one program, code set, or instruction set is loaded and executed by the processor to execute method of data transmission according to any one of paragraphs. 1-13 or 14-18.

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