CN111684742B

CN111684742B - Data transmission method and device

Info

Publication number: CN111684742B
Application number: CN201880088828.3A
Authority: CN
Inventors: 甄斌; 程型清
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-02-14
Filing date: 2018-02-14
Publication date: 2022-08-19
Anticipated expiration: 2038-02-14
Also published as: WO2019157747A1; CN111684742A

Abstract

The application provides a data transmission method and a device, comprising the following steps: receiving end equipment receives training data sent by sending end equipment, wherein the training data are known data of the sending end equipment and the receiving end equipment and comprise at least one of a synchronous signal, a reference signal and special user plane training data; the receiving end equipment determines a distortion mode of a constellation diagram of the data according to the received distorted training data; the receiving end equipment determines a receiving mode of a constellation diagram for receiving data according to the distortion mode; and the receiving end equipment receives data from the transmitting end equipment according to the determined receiving mode of the constellation diagram. The data transmission method and the data transmission device can reduce errors of data transmission, and therefore communication performance is improved.

Description

Data transmission method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus.

Background

Typically, a constellation diagram includes a plurality of constellation points arranged in a particular configuration, the constellation diagram representing a mapping of digital data to a carrier signal or carrier, and vice versa.

In a wireless communication system, transmitting and receiving devices need to perform corresponding processing on transmission data through a constellation diagram so as to ensure the accuracy of information receiving and transmitting. Generally, a sending end device encodes and modulates information according to a constellation diagram, and sends the encoded and modulated information to a receiving end device, and the receiving end device decodes and demodulates the received information according to the constellation diagram to complete data transmission.

However, since data transmitted by the transmitting end device may experience various distortions and noise interferences, such as device nonlinearities, channel, noise, synchronization errors, and the like, when the receiving end device demodulates the data through the constellation diagram, transmission errors may be caused. Therefore, how to select a suitable constellation diagram to combat the above distortion and noise interference, thereby improving communication performance, is a technical problem to be solved urgently.

Disclosure of Invention

The application provides a data transmission method and device, which can improve the data transmission accuracy and further improve the communication performance.

In a first aspect, an embodiment of the present application provides a data transmission method, including:

receiving end equipment receives training data sent by sending end equipment, wherein the training data are known by the sending end equipment and the receiving end equipment and comprise at least one of a synchronous signal, a reference signal and special user plane training data;

the receiving end equipment determines a distortion mode of a constellation diagram of the data according to the received distorted training data;

the receiving end equipment determines a receiving mode of a constellation diagram for receiving data according to the distortion mode;

and the receiving end equipment receives data from the transmitting end equipment according to the determined receiving mode of the constellation diagram.

In the above scheme, the receiving end device determines the distortion mode of the constellation diagram of the data according to the distorted training data sent by the sending end device, and determines the receiving mode of the constellation diagram of the received data according to the distortion mode, so that the receiving end device can receive the data from the sending end device according to the determined receiving mode of the constellation diagram, and thus, the receiving end device can adopt different constellation diagrams to receive the data according to different distortion modes, thereby reducing transmission errors, improving the accuracy of data transmission, and improving the communication performance.

In a possible implementation manner, the determining, by the receiving end device, a distortion mode of a constellation diagram of data according to the received distorted training data includes:

and the receiving end equipment identifies and classifies the distorted training data and determines the distortion mode corresponding to the class of the distorted training data.

In the above scheme, data distortion may be caused by non-linearity of devices, channel, noise, synchronization error, and other reasons, and therefore, when determining the distortion mode, the class of the cause causing the training data distortion may be determined by identifying and classifying the distorted training data. The distorted training data can be identified and classified in an off-line training mode or an on-line training mode, and the efficiency of determining the distortion mode can be improved.

In a possible implementation manner, the determining, by the receiving end device, a receiving mode of a constellation diagram used for receiving data according to the distortion mode includes:

the receiving end equipment determines a first constellation diagram corresponding to a distortion mode according to a prestored corresponding relation between the distortion mode and the constellation diagram;

the receiving end device receives data from the transmitting end device according to the determined receiving mode of the constellation diagram, and the receiving end device includes:

and the receiving end equipment demodulates the received data according to the first constellation diagram.

In the scheme, the constellation diagram used when the sending end equipment modulates the data is not changed, and the constellation diagram used when the receiving end equipment demodulates the data is changed, so that the error of data transmission can be reduced, and the accuracy of data transmission is improved.

the receiving end device receives data from the transmitting end device according to the determined receiving mode of the constellation diagram, and the receiving end device comprises:

the receiving end equipment sends the first constellation diagram to the sending end equipment;

the receiving end equipment receives data from the sending end equipment, and the data is obtained by modulation according to the first constellation diagram;

and the receiving terminal equipment demodulates the received data according to the first constellation diagram.

In the above scheme, since the constellation diagram used when the sending end device modulates data and the constellation diagram used when the receiving end device demodulates data are changed at the same time, the error of data transmission can be reduced, and the accuracy of data transmission is improved.

the receiving end equipment determines a receiving mode of the constellation diagram used for receiving data as a second constellation diagram according to the distortion mode;

the receiving end device sends the distortion mode to the transmitting end device, wherein the distortion mode is used for indicating the transmitting end device to determine the second constellation diagram;

the receiving end equipment receives data from the sending end equipment, and the data is obtained by modulation according to the second constellation diagram;

and the receiving end equipment demodulates the received data according to the second constellation diagram.

In the above scheme, the constellation diagram used when the sending end device modulates data and the constellation diagram used when the receiving end device demodulates data are changed at the same time, so that errors of data transmission can be reduced, and the accuracy of data transmission is improved.

the receiving end equipment determines that the receiving mode of the constellation diagram used for receiving the data is a third constellation diagram according to the distortion mode;

the receiving end device sends the distortion mode to the sending end device, wherein the distortion mode is used for indicating the sending end device to determine a second constellation diagram;

and the receiving end equipment demodulates the received data according to the third constellation diagram.

In the above scheme, the constellation diagram used when the sending end device modulates data is changed, and the constellation diagram used when the receiving end device demodulates data is not changed, so that errors of data transmission can be reduced, and the accuracy of data transmission is improved.

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

the method comprises the steps that a sending end device sends training data to a receiving end device, wherein the training data are known by the sending end device and the receiving end device and comprise at least one of a synchronous signal, a reference signal and special user plane training data; the distorted training data is used for the receiving end equipment to determine a distortion mode of a constellation diagram of the data;

the sending end equipment receives the distortion mode or a first constellation diagram sent by the receiving end equipment, wherein the first constellation diagram is determined according to the distortion mode;

the sending end equipment determines a receiving mode of a constellation diagram used for sending data according to the distortion mode, and sends the data to the receiving end equipment according to the determined receiving mode of the constellation diagram; or, the sending end device sends data to the receiving end device according to the first constellation diagram.

In the above scheme, the receiving end device determines the distortion mode of the constellation diagram of the data according to the distorted training data sent by the sending end device, and determines the receiving mode of the constellation diagram of the received data according to the distortion mode, so that the data can be received from the sending end device according to the determined receiving mode of the constellation diagram.

In a possible implementation manner, the determining, by the sending end device, a receiving mode of a constellation diagram used for sending data according to the distortion mode, and sending data to the receiving end device according to the determined receiving mode of the constellation diagram includes:

the sending end equipment determines a second constellation diagram corresponding to the distortion mode according to a prestored corresponding relation between the distortion mode and the constellation diagram;

the sending end equipment modulates the data to be sent according to the second constellation diagram to obtain modulated data;

and the sending end equipment sends the modulated data to the receiving end equipment.

In the above scheme, the constellation diagram used when the sending end device modulates the data is changed, and the data is modulated through the changed constellation diagram, so that the error of data transmission can be reduced, and the accuracy of data transmission is improved.

In a possible implementation manner, the sending, by the sending end device, data to the receiving end device according to the first constellation diagram includes:

the sending end equipment modulates the data to be sent according to the first constellation diagram to obtain modulated data;

In a third aspect, an embodiment of the present application provides an apparatus for transmitting data, including:

a receiving unit, configured to receive training data sent by a sending end device, where the training data is known by the sending end device and the receiving end device, and the training data includes at least one of a synchronization signal, a reference signal, and dedicated user plane training data;

the processing unit is used for determining a distortion mode of a constellation diagram of the data according to the received distorted training data;

the processing unit is further configured to determine a receiving mode of a constellation diagram for receiving data according to the distortion mode;

the receiving unit is further configured to receive data from the sending end device according to the determined receiving mode of the constellation diagram.

In a possible implementation manner, the processing unit is specifically configured to:

and identifying and classifying the distorted training data, and determining the distortion mode corresponding to the class of the distorted training data.

determining a first constellation diagram corresponding to a distortion mode according to a pre-stored corresponding relationship between the distortion mode and the constellation diagram;

the receiving unit is specifically configured to:

and demodulating the received data according to the first constellation diagram.

In a possible implementation manner, the receiving end device further includes: a transmitting unit;

the processing unit is specifically configured to:

the sending unit is configured to send the first constellation diagram to the sending end device;

the receiving unit is configured to receive data from the sending end device, where the data is obtained by modulation according to the first constellation diagram;

the receiving unit is further configured to demodulate the received data according to the first constellation.

the processing unit is specifically configured to:

determining a receiving mode of a constellation diagram used for receiving data as a second constellation diagram according to the distortion mode;

the transmitting unit is configured to transmit the distortion mode to the transmitting end device, where the distortion mode is used to instruct the transmitting end device to determine the second constellation;

the receiving unit is further configured to receive data from the sending end device, where the data is obtained by modulating according to the second constellation diagram;

the receiving unit is further configured to demodulate the received data according to the second constellation.

the processing unit is specifically configured to:

determining a receiving mode of a constellation diagram used for receiving data as a third constellation diagram according to the distortion mode;

the transmitting unit is configured to transmit the distortion mode to the transmitting end device, where the distortion mode is used to instruct the transmitting end device to determine a second constellation;

the receiving unit is further configured to demodulate the received data according to the third constellation.

the processing unit is specifically configured to:

the processing unit is further configured to determine a first constellation diagram corresponding to the distortion mode according to a pre-stored correspondence between the distortion mode and the constellation diagram;

the transmitting unit is configured to transmit the first constellation diagram to the transmitting end device;

the receiving unit is further configured to receive data from the sending end device, where the data is obtained by modulation according to the first constellation diagram;

the receiving unit is further configured to demodulate the received data according to the third constellation diagram.

In a fourth aspect, an embodiment of the present application provides an apparatus for transmitting data, including:

a sending unit, configured to send training data to a receiving end device, where the training data is known by the sending end device and the receiving end device, and the training data includes at least one of a synchronization signal, a reference signal, and dedicated user plane training data; the distorted training data is used for the receiving end equipment to determine a distortion mode of a constellation diagram of the data;

a receiving unit, configured to receive the distortion mode or a first constellation diagram sent by the receiving end device, where the first constellation diagram is determined according to the distortion mode;

a processing unit, configured to determine a receiving mode of a constellation diagram used for transmitting data according to the distortion mode;

the sending unit is further configured to send data to the receiving end device according to the determined receiving mode of the constellation diagram; or, the sending unit is further configured to send data to the receiving end device according to the first constellation diagram.

In a possible implementation manner, the processing unit is further configured to determine, according to a pre-stored correspondence between a distortion mode and a constellation diagram, a second constellation diagram corresponding to the distortion mode;

the processing unit is further configured to modulate the data to be sent according to the second constellation map to obtain modulated data;

the sending unit is further configured to send the modulated data to the receiving end device.

In a possible implementation manner, the processing unit is configured to modulate, according to the first constellation diagram, data to be sent to obtain modulated data;

the sending unit is configured to send the modulated data to the receiving end device.

The apparatuses provided in the third and fourth aspects of the present application may be communication devices, and may also be chips in the communication devices, where the communication devices or the chips have functions of implementing the data transmission methods in the above aspects or any possible manners thereof. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions.

The communication device includes: a processing unit, which may be a processor, and a transceiver unit, which may be a transceiver comprising radio frequency circuitry, optionally the communication device further comprises a storage unit, which may be a memory, for example. When the communication device comprises a storage unit, the storage unit is used for storing computer-executable instructions, the processing unit is connected with the storage unit, and the processing unit executes the computer-executable instructions stored by the storage unit, so that the communication device executes the data transmission method in the aspects or any possible manner thereof.

The chip includes: a processing unit, which may be a processor, and a transceiver unit, which may be an input/output interface, pins or circuits, etc. on the chip. The processing unit can execute the computer execution instructions stored in the storage unit to make the chip execute the data transmission method in the above aspects or any possible manner thereof. Alternatively, the storage unit may be a storage unit (e.g., a register, a cache, etc.) inside the chip, and the storage unit may also be a storage unit (e.g., a read-only memory (ROM)) outside the chip inside the communication device or another type of static storage device (e.g., a Random Access Memory (RAM)) that may store static information and instructions.

The aforementioned processor may be a Central Processing Unit (CPU), a microprocessor or an Application Specific Integrated Circuit (ASIC), or may be one or more integrated circuits for controlling the program execution of the data transmission method of the above aspects or any possible manner thereof.

In a fifth aspect, an embodiment of the present application further provides a receiving end device, where the receiving end device may include a processor and a memory;

wherein the memory is configured to store program instructions;

the processor is configured to call and execute the program instructions stored in the memory, and execute the data transmission method according to any one of the first aspect.

In a sixth aspect, an embodiment of the present application further provides a sending end device, where the sending end device may include a processor and a memory;

wherein the memory is configured to store program instructions;

the processor is configured to call and execute the program instructions stored in the memory, and execute the data transmission method according to any one of the second aspect.

In a seventh aspect, this application embodiment further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the method for transmitting data in any of the first aspects is performed.

In an eighth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for transmitting data shown in any one of the second aspects is performed.

In a ninth aspect, the present application further provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method for transmitting data provided in the first aspect of the present application.

In a tenth aspect, embodiments of the present application further provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the method for transmitting data provided in the second aspect of the embodiments of the present application.

In an eleventh aspect, an embodiment of the present application further provides a chip, where a computer program is stored on the chip, and when the computer program is executed by a processor, the method for transmitting data provided in the first aspect is performed.

In a twelfth aspect, an embodiment of the present application further provides a chip, where a computer program is stored on the chip, and when the computer program is executed by a processor, the method for transmitting data provided in the second aspect is performed.

In a thirteenth aspect, an embodiment of the present application further provides a communication system, where the communication system includes the receiving end device provided in the third aspect and the transmitting end device provided in the fourth aspect.

According to the data transmission method and device provided by the embodiment of the application, the receiving end equipment receives training data sent by the sending end equipment, the training data are known by the sending end equipment and the receiving end equipment, the training data comprise at least one of a synchronization signal, a reference signal and special user plane training data, a distortion mode of a constellation diagram of the data is determined according to the received distorted training data, then a receiving mode of the constellation diagram used for receiving the data is determined according to the distortion mode, and the data are received from the sending end equipment according to the determined receiving mode of the constellation diagram. The receiving end equipment determines the distortion mode of the constellation diagram of the data according to the distorted training data sent by the sending end equipment, and determines the receiving mode of the constellation diagram of the received data according to the distortion mode, so that the receiving end equipment can receive the data from the sending end equipment according to the determined receiving mode of the constellation diagram, and thus, the receiving end equipment can receive the data by adopting different constellation diagrams according to different distortion modes, thereby avoiding transmission errors, improving the accuracy of data transmission and improving the communication performance.

Drawings

FIG. 1 is a block diagram of a communication system;

fig. 2 is a signaling flow chart of the data transmission method of the present application;

FIGS. 3 a-3 c are schematic diagrams of distortion modes;

FIG. 4 is a schematic flow chart of an offline training mode;

FIG. 5 is a schematic flow chart of an online training mode;

fig. 6a is a schematic diagram of a third constellation;

6 b-6 c are schematic diagrams of optimized constellations;

fig. 7 is a schematic structural diagram of a receiving end device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a sending end device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

Hereinafter, the receiving end device and the sending end device in the present application are explained first to facilitate understanding by those skilled in the art.

In this application, the receiving end device may be a terminal device, and then the sending end device is a network device, or when the receiving end device is a network device, then the sending end device may be a terminal device, and of course, the receiving end device and the sending end device may also be other devices that need to modulate or demodulate data according to a constellation diagram.

Among these, 1) a terminal device, which may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may be a Station (ST) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in a fifth-generation communication (5G) network or a terminal device in a Public Land Mobile Network (PLMN) network for future evolution, a terminal device in a new air interface (NR) communication system, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of equipment that uses wearable technique to carry out intelligent design, develop can dress to daily wearing, such as glasses, gloves, wrist-watch, dress and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

2) The network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a base station (nodeB, NB) in WCDMA, an evolved node B (eNB or eNodeB) in LTE, a relay station or an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network or a network device in a future evolved PLMN network, a new generation base station (new generation node B) in an NR system, and the like.

Those skilled in the art can understand that the data transmission method provided in the embodiment of the present application may be applied to a communication system in which a sending end device modulates data by a constellation diagram and then sends the modulated data, and a receiving end device demodulates the received data by the constellation diagram. Fig. 1 is a schematic architecture diagram of a communication system, and as shown in fig. 1, the system includes a terminal device 10 and a network device 20, where the terminal device 10 may be, for example, a UE, and the network device 20 may be a base station, where a receiving end device is the terminal device 10, and a sending end device is the network device 20, or where the receiving end device is the network device 20, and the sending end device may be the terminal device 10.

In the existing communication system, a 3rd generation partnership project (3 GPP) protocol specifies a unique constellation according to a channel quality condition, and is applied to a transmitting end device and a receiving end device. The sending end equipment modulates data to be sent through a standard constellation diagram specified by a protocol, sends the modulated data to the receiving end equipment, and the receiving end equipment demodulates the received data through the standard constellation diagram specified by the protocol. However, since the data transmitted by the transmitting end device may experience various distortions and noise interferences, such as device nonlinearities, channel, noise, synchronization errors, and the like, when the receiving end device demodulates the data through the above standard constellation diagram, transmission errors may be caused, resulting in low communication performance.

In view of these situations, an embodiment of the present application provides a data transmission method, where a receiving end device receives training data sent by a sending end device, where the training data is known by the sending end device and the receiving end device, and the training data includes at least one of a synchronization signal, a reference signal, and dedicated user plane training data, and determines a distortion mode of a constellation diagram of the data according to the received distorted training data, then determines a receiving mode of the constellation diagram for receiving the data according to the distortion mode, and then receives the data from the sending end device according to the determined receiving mode of the constellation diagram. The receiving end equipment determines the distortion mode of the constellation diagram of the data according to the distorted training data sent by the sending end equipment, and determines the receiving mode of the constellation diagram of the received data according to the distortion mode, so that the receiving end equipment can receive the data from the sending end equipment according to the determined receiving mode of the constellation diagram, and thus, the receiving end equipment can receive the data by adopting different constellation diagrams according to different distortion modes, thereby reducing transmission errors, improving the accuracy of data transmission and improving the communication performance.

Fig. 2 is a signaling flowchart of a data transmission method of the present application. On the basis of the system architecture shown in fig. 1, as shown in fig. 2, the method of this embodiment may include:

step 201, the sending end device sends training data to the receiving end device.

The training data is known by the sending end device and the receiving end device, and includes at least one of a synchronization signal, a reference signal and dedicated user plane training data.

In this step, the training data is known data of the transmitting end device and the receiving end device, where the training data may include user plane data and control plane data, where the control plane data may include a synchronization signal and/or a reference signal, and the dedicated user plane training data may include known data agreed by both parties, for example.

Step 202, the receiving end device determines a distortion mode of a constellation diagram of the data according to the received distorted training data.

In this step, fig. 3a to fig. 3c are schematic diagrams of distortion modes, as shown in fig. 3a to fig. 3c, during the process of transmitting training data to the receiving end device, the training data may experience various distortions and noise interferences, such as nonlinearity of devices, channel characteristics, noise, synchronization errors, and the like, and therefore, the training data to be distorted is received by the receiving end device. Wherein the channel characteristics include time domain characteristics, spatial domain characteristics, frequency domain characteristics, and power domain characteristics. When receiving the distorted training data, the receiving end device determines a distortion pattern of a constellation diagram of the data according to the distorted training data, as shown in fig. 3a, where the distortion pattern includes non-uniformly distributed noise, as shown in fig. 3b, where the data is compressed in a certain direction, as shown in fig. 3c, where the data rotates around a central point.

In a possible implementation manner, the receiving end device determines the distortion mode of the constellation diagram of the data according to the received distorted training data, including that the receiving end device identifies and classifies the distorted training data, and determines the category of the distorted training data.

Specifically, data distortion is caused by device nonlinearity, channel, noise, synchronization error and other reasons, so that when a distortion mode is determined, the class of the cause causing the training data distortion can be determined by identifying and classifying the distorted training data.

In addition, in practical application, the receiving end device may discover the influence of the error sources such as nonlinearity, channel, noise, and synchronization error of the device on the constellation diagram through an offline training mode or an online training mode. In the following, how to identify and classify the distorted training data by an offline training mode or an online training mode, and determine a distortion mode corresponding to the class of the distorted training data will be described in detail.

Fig. 4 is a schematic flow chart of an offline training mode, and as shown in fig. 4, a receiving end device includes a machine learning module, where the machine learning module includes an input layer, an output layer, and 1 or more hidden layers, and neurons between the layers may be fully connected or partially connected. The learning algorithm adopted by the machine learning module when identifying and classifying the distorted training data may include: supervised learning algorithms (Regression model, K-nearest neighbor, dominant vector machines, Bayesian learning), unsupervised learning algorithms (K-means, Principal component analysis, independent component analysis), and reinforcement learning algorithms (Markov decision processes, partial object Markov decision process, Q-learning). Specifically, an implementation of a machine learning module may include 6 layers, 4 hidden layers, 16, 256, 128, 64, 32, and 8 neurons per layer, with all neurons connected.

Continuing to refer to fig. 4, S is input and S is output, the distorted training data is input into the machine learning module, and the distorted training data is distributed with the output distortion mode and the optimized constellation map through the transmitting end, the channel and the receiving end.

Fig. 5 is a schematic flow diagram of an online training mode, as shown in fig. 5, wherein known training data may be sent between a sending end device and a receiving end device, and feedback is performed to minimize an error ∈, so as to obtain a distortion mode and an optimized constellation distribution.

Step 203, the receiving end device determines a receiving mode of the constellation diagram for receiving the data according to the distortion mode.

In this embodiment, the receiving end device stores, in advance, the receiving modes of the constellation corresponding to various distortion modes, and after the receiving end device determines the distortion mode of the constellation of the data, it determines which constellation is used to receive the data according to the corresponding relationship between the distortion mode and the receiving mode of the constellation.

Fig. 6a is a schematic diagram of a third constellation diagram, and fig. 6b to 6c are schematic diagrams of optimized constellation diagrams, where the third constellation diagram shown in fig. 6a is a standard constellation diagram specified in a protocol, that is, a constellation diagram corresponding to a distortion mode with distortion or interference smaller than a preset threshold, and the constellation diagrams shown in fig. 6b to 6c are different constellation diagrams obtained by identifying and classifying received distorted training data in an offline training mode shown in fig. 4 or an online training mode shown in fig. 5, and optimizing the constellation diagram corresponding to the distortion mode while determining a plurality of distortion modes.

It should be noted that, because the optimized constellation diagram is obtained after the sending end device or the receiving end correspondingly adjusts the constellation diagram corresponding to the distortion mode, in practical applications, when the sending end device uses the optimized constellation diagram to modulate data, the receiving end device may use the same optimized constellation diagram to demodulate data.

And step 204, the receiving end equipment receives data from the sending end equipment according to the determined receiving mode of the constellation diagram.

In this step, after determining the receiving mode of the constellation diagram, the receiving end device receives data from the sending end device according to the determined receiving mode, where the data received by the receiving end device from the sending end device may include, for example, a Physical Uplink Shared Channel (PUSCH) and a Physical Downlink Shared Channel (PDSCH).

In practical applications, when the sending end device modulates data to be sent according to a constellation diagram and the receiving end device demodulates received data, the following situations may be included: the sending end device modulates the data to be sent according to a third constellation diagram specified by the existing protocol, and the receiving end device demodulates the received data according to a non-standard constellation diagram, or the sending end device modulates the data to be sent according to the non-standard constellation diagram, and the receiving end device demodulates the received data according to the third constellation diagram, or the sending end device modulates the data to be sent according to the non-standard constellation diagram, and the receiving end device demodulates the received data according to the non-standard constellation diagram. The third constellation is a standard constellation defined in an existing protocol, and the non-standard constellation is a constellation obtained by learning through a machine learning module shown in fig. 4 or fig. 5.

In the following, several different situations described above will be explained in detail.

(1) The situation that the sending end equipment modulates the data to be sent according to the third constellation diagram, and the receiving end equipment demodulates the received data according to the non-standard constellation diagram

For this situation, the receiving end device may determine the first constellation diagram corresponding to the distortion mode according to a pre-stored correspondence between the distortion mode and the constellation diagram, so that the receiving end device receives data from the sending end device according to the determined receiving mode of the constellation diagram, and may demodulate the received data according to the determined first constellation diagram.

Specifically, if the receiving end device determines the distortion mode of the constellation diagram of the data according to the received distorted training data, the receiving end device determines the first constellation diagram corresponding to the distortion mode according to the pre-stored correspondence between the distortion mode and the constellation diagram. For example: if the determined distortion mode is the mode shown in fig. 3a, the receiving end device determines the first constellation diagram corresponding to the distortion mode shown in fig. 3a according to the pre-stored correspondence between the distortion mode and the constellation diagram. Therefore, when the sending end device modulates the data to be sent according to the third constellation diagram and sends the data to the receiving end device, distortion of the data sent by the sending end device may be caused due to nonlinear characteristics, channels, noise, synchronization errors and the like of the sending end device or the receiving end device. When receiving end equipment receives data, the received data is demodulated by adopting the determined first constellation diagram, so that the correctness of the data received by the receiving end equipment is ensured, and the communication performance can be improved.

In the above manner, since the sending end device modulates the data to be sent according to the third constellation diagram and the receiving end device demodulates the received data according to the first constellation diagram, the constellation diagram of the receiving end device is changed, and the structure of the receiving end device and the data receiving process are not changed, so that the data transmission accuracy can be improved.

(2) The situation that the sending end equipment modulates the data to be sent according to the non-standard constellation diagram and the receiving end equipment demodulates the received data according to the third constellation diagram

For this situation, in a possible implementation manner, the receiving end device may determine, according to the distortion mode, that the receiving mode of the constellation used for receiving the data is the third constellation, and receive the data from the sending end device according to the determined receiving mode of the constellation, and may include sending the distortion mode to the sending end device, where the distortion mode is used to instruct the sending end device to determine the second constellation, the receiving end device receives the data from the sending end device, the data is obtained by modulation according to the second constellation, and the receiving end device demodulates the received data according to the third constellation.

Specifically, if the receiving end device demodulates the received data by using the third constellation diagram, the sending end device needs to modulate the data to be sent by using the non-standard constellation diagram according to the distortion mode. In a specific implementation process, after determining a distortion mode of a constellation diagram of data according to received distorted training data, the receiving end device sends the distortion mode to the sending end device. The corresponding relation between the distortion mode and the constellation map is also stored locally in the sending end device, so that the sending end device can determine a second constellation map corresponding to the distortion mode according to the received distortion mode and the corresponding relation, modulate the data to be sent according to the determined second constellation map, and send the modulated data to the receiving end device. The method for determining the receiving mode of the constellation diagram by the sending end device according to the distortion mode of the constellation diagram of the data is similar to the method for determining the receiving mode of the constellation diagram by the receiving end device according to the distortion mode of the constellation diagram of the data, and is not repeated here.

For example, as shown in fig. 3a, if the receiving end device determines that the receiving mode of the constellation diagram used for receiving the data is the third constellation diagram, and the receiving end device determines the distortion mode of the constellation diagram of the data and then sends the distortion mode to the sending end device, the sending end device determines the second constellation diagram corresponding to the distortion mode according to the pre-stored correspondence between the distortion mode and the constellation diagram, and if the second constellation diagram corresponding to the distortion mode shown in fig. 3a is determined, in order to combat the synchronization error, the sending end device adjusts the determined second constellation diagram, and modulates the data to be sent according to the adjusted second constellation diagram, if each signal in the distortion mode shown in fig. 3b moves downward when the distortion is changed, the sending end device adjusts the second constellation diagram corresponding to the distortion mode shown in fig. 3b, the signals in the second constellation diagram are shifted upwards as a whole, and then the data to be transmitted are modulated, so that for the receiving end equipment, the receiving end equipment can decode the data according to the third constellation diagram.

It should be noted that, in this embodiment of the present application, there is no specific limitation on how the sending end device adjusts the second constellation diagram, as long as it is ensured that the receiving end device can correctly demodulate data according to the third constellation diagram.

In another possible implementation manner, the receiving end device determines, according to the distortion mode, that the receiving mode of the constellation diagram used for receiving the data is a third constellation diagram, and then the receiving end device receives the data from the sending end device according to the determined receiving mode of the constellation diagram, including determining, according to a pre-stored correspondence between the distortion mode and the constellation diagram, a first constellation diagram corresponding to the distortion mode, the receiving end device sends the first constellation diagram to the sending end device, the receiving end device receives the data from the sending end device, the data is obtained by modulation according to the first constellation diagram, and the receiving end device demodulates the received data according to the third constellation diagram.

Specifically, the difference between this method and the above method is that after determining the distortion mode of the constellation diagram of the data, the receiving end device does not directly send the distortion mode to the sending end device, but determines a first constellation diagram corresponding to the distortion mode according to a correspondence relationship between the distortion mode and the constellation diagram, which is stored locally in advance, and sends the first constellation diagram to the sending end device. In addition, since the receiving mode of the constellation used by the receiving end device to receive the data is the third constellation diagram, in order to counter distortion, the sending end device may adjust the first constellation diagram, and modulate the data to be sent according to the adjusted first constellation diagram, so as to ensure that the receiving end device can correctly demodulate the data according to the third constellation diagram. It should be noted that, in this embodiment, no particular limitation is imposed on how the sending end device adjusts the first constellation diagram, as long as it is ensured that the receiving end device can correctly demodulate data according to the third constellation diagram.

In the above manner, since the sending end device modulates the data to be sent according to the non-standard constellation diagram, and the receiving end device demodulates the received data according to the third constellation diagram, only the constellation diagram of the sending end device is changed, and the structure of the sending end device and the data sending flow are not changed, thereby improving the data transmission accuracy.

(3) The situation that the sending end equipment modulates the data to be sent according to the optimized non-standard constellation diagram, and the receiving end equipment demodulates the received data according to the optimized non-standard constellation diagram

For this situation, in a possible implementation manner, after determining a first constellation diagram corresponding to the distortion mode according to a pre-stored correspondence between the distortion mode and the constellation diagram, the receiving end device sends the first constellation diagram to the sending end device, the receiving end device receives data from the sending end device, the data is obtained by modulating according to the first constellation diagram, and the receiving end device demodulates the received data according to the first constellation diagram.

Specifically, after determining a distortion mode of a constellation diagram of data according to distorted training data, the receiving end device determines a first constellation diagram corresponding to the distortion mode according to a pre-stored correspondence between the distortion mode and the constellation diagram, and sends the first constellation diagram to the sending end device. Because the receiving end device demodulates the received data according to the first constellation diagram, in order to counter distortion, the sending end device adjusts the first constellation diagram and modulates the data to be sent according to the adjusted first constellation diagram, so as to ensure that the receiving end device can correctly demodulate the data according to the first constellation diagram. It should be noted that, in this embodiment of the present application, there is no specific limitation on how the sending end device adjusts the first constellation diagram, as long as it is ensured that the receiving end device can correctly demodulate data according to the first constellation diagram.

It should be noted that, if the first constellation determined by the receiving end device according to the distortion mode is the optimized constellation as shown in fig. 6a to fig. 6c, that is, the determined first constellation is the constellation after the constellation has been adjusted according to the distortion mode, at this time, the sending end device may modulate the data to be sent according to the determined first constellation, and the receiving end device may demodulate the received data according to the same first constellation.

In another possible implementation manner, the determining, by the receiving end device according to the distortion mode, that the receiving mode of the constellation used for receiving the data is the second constellation, and then the receiving end device receives the data from the transmitting end device according to the determined receiving mode of the constellation, may include: and the receiving end equipment sends a distortion mode to the sending end equipment, the distortion mode is used for indicating the sending end equipment to determine a second constellation diagram, the receiving end equipment receives data from the sending end equipment, the data is obtained by modulation according to the second constellation diagram, and the receiving end equipment demodulates the received data according to the second constellation diagram.

Specifically, this method is different from the above method in that after determining the distortion mode of the constellation diagram of the data, the receiving end device does not need to determine the receiving mode of the constellation diagram corresponding to the distortion mode, but directly sends the distortion mode to the sending end device, and the sending end device determines the second constellation diagram corresponding to the distortion mode according to the pre-stored correspondence between the distortion mode and the constellation diagram. In addition, since the receiving mode of the constellation diagram used by the receiving end device for receiving the data is the second constellation diagram, in order to combat distortion, the sending end device may adjust the second constellation diagram, and modulate the data to be sent according to the adjusted second constellation diagram, so as to ensure that the receiving end device can correctly demodulate the data according to the second constellation diagram. It should be noted that, in this embodiment, a manner of how the sending end device adjusts the second constellation diagram is not specifically limited, as long as it is ensured that the receiving end device can correctly demodulate data according to the second constellation diagram.

It should be noted that, if the second constellation determined by the sending end device according to the distortion mode is the optimized constellation as shown in fig. 6a to fig. 6c, that is, the determined second constellation is the constellation after the constellation has been adjusted according to the distortion mode, at this time, the sending end device may modulate the data to be sent according to the determined second constellation, and the receiving end device may demodulate the received data according to the same second constellation.

It is noted that, in addition to the third constellation diagram, other non-standard constellation diagrams are used in unicast communication between the sending device and the receiving device.

In this embodiment, the sending end device and the receiving end device identify the distortion mode and select the corresponding constellation diagram according to the distortion mode, so that the sending end device modulates the data to be sent according to the selected constellation diagram, and the receiving end device modulates the data to be sent according to the selected constellation diagram, thereby improving the accuracy of data transmission and improving the communication performance.

Further, when the sending end device uses a non-standard constellation diagram, that is, the first constellation diagram or the second constellation diagram to modulate data, the structure of the sending end device and the modulation flow are not changed, so that the implementation mode of the method is simpler. Similarly, when the receiving end device demodulates data by using a non-standard constellation diagram, that is, the first constellation diagram or the second constellation diagram, the structure of the receiving end device and the demodulation process are not changed, and the implementation manner of the method is simpler.

In the method, the receiving end device receives training data sent by the sending end device, the training data are known by the sending end device and the receiving end device, the training data include at least one of a synchronization signal, a reference signal and special user plane training data, a distortion mode of a constellation diagram of the data is determined according to the received distorted training data, a receiving mode of the constellation diagram for receiving the data is determined according to the distortion mode, and the data is received from the sending end device according to the determined receiving mode of the constellation diagram. The receiving end equipment determines the distortion mode of the constellation diagram of the data according to the distorted training data sent by the sending end equipment, and determines the receiving mode of the constellation diagram of the received data according to the distortion mode, so that the data can be received from the sending end equipment according to the determined receiving mode of the constellation diagram, and the receiving end equipment can receive the data by adopting different constellation diagrams according to different distortion modes, thereby avoiding transmission errors, improving the accuracy of data transmission and improving the communication performance.

Fig. 7 is a schematic structural diagram of a receiving end device 70 according to an embodiment of the present application, please refer to fig. 7, where the receiving end device 70 may include:

a receiving unit 701, configured to receive training data sent by a sending end device, where the training data is known by the sending end device and the receiving end device, and the training data includes at least one of a synchronization signal, a reference signal, and dedicated user plane training data;

a processing unit 702, configured to determine a distortion mode of a constellation diagram of data according to the received distorted training data;

the processing unit 702 is further configured to determine a receiving mode of a constellation diagram for receiving data according to the distortion mode;

the receiving unit 701 is further configured to receive data from the sending end device according to the determined receiving mode of the constellation diagram.

Optionally, the processing unit 702 is specifically configured to:

the receiving unit 701 is specifically configured to:

Optionally, as shown in fig. 7, the receiving end device 70 further includes: a transmitting unit 703;

the processing unit 702 is specifically configured to:

the sending unit 703 is configured to send the first constellation map to the sending end device;

the receiving unit 701 is configured to receive data from the sending end device, where the data is obtained by modulating according to the first constellation diagram;

the receiving unit 701 is further configured to demodulate the received data according to the first constellation.

the processing unit 702 is specifically configured to:

the sending unit 703 is configured to send the distortion mode to the sending end device, where the distortion mode is used to instruct the sending end device to determine the second constellation;

the receiving unit 701 is further configured to receive data from the sending end device, where the data is obtained by modulating according to the second constellation diagram;

the receiving unit 701 is further configured to demodulate the received data according to the second constellation.

the processing unit 702 is specifically configured to:

the sending unit 703 is configured to send the distortion mode to the sending end device, where the distortion mode is used to instruct the sending end device to determine a second constellation;

the receiving unit 701 is further configured to demodulate the received data according to the third constellation.

the processing unit 702 is specifically configured to:

the processing unit 702 is further configured to determine, according to a pre-stored correspondence between a distortion mode and a constellation diagram, a first constellation diagram corresponding to the distortion mode;

the receiving unit 701 is further configured to receive data from the sending end device, where the data is obtained by modulation according to the first constellation diagram;

The receiving end device 70 shown in the embodiment of the present application may execute the technical solution of the data transmission method shown in any one of the above embodiments, and the implementation principle and the beneficial effect are similar, which are not described herein again.

It should be noted that the division of each unit of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or can be implemented in the form of hardware; and part of the units can be realized in the form of software invoked by the processing element, and part of the units can be realized in the form of hardware. For example, the sending unit may be a processing element separately set up, or may be implemented by being integrated in a chip of the receiving device, or may be stored in a memory of the receiving device in the form of a program, and the processing element of the receiving device calls and executes the function of the sending unit. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each unit above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. Further, the above transmitting unit is a unit that controls transmission, and information can be transmitted by transmitting means of the receiving-end apparatus, such as an antenna and a radio frequency device.

The above units may be one or more integrated circuits configured to implement the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when the above units are implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 8 is a schematic structural diagram of a sending-end device 80 provided in an embodiment of the present application, please refer to fig. 8, where the sending-end device 80 may include:

a sending unit 801, configured to send training data to a receiving end device, where the training data is known by the sending end device and the receiving end device, and the training data includes at least one of a synchronization signal, a reference signal, and dedicated user plane training data; the distorted training data is used for the receiving end equipment to determine the distortion mode of the constellation diagram of the data;

a receiving unit 802, configured to receive the distortion mode or a first constellation diagram sent by the receiving end device, where the first constellation diagram is determined according to the distortion mode;

a processing unit 803, configured to determine a receiving mode of a constellation diagram for transmitting data according to the distortion mode;

the sending unit 801 is further configured to send data to the receiving end device according to the determined receiving mode of the constellation diagram; or, the sending unit 801 is further configured to send data to the receiving end device according to the first constellation diagram.

Optionally, the processing unit 803 is further configured to determine, according to a pre-stored correspondence between a distortion mode and a constellation diagram, a second constellation diagram corresponding to the distortion mode;

the processing unit 803 is further configured to modulate the data to be sent according to the second constellation diagram, so as to obtain modulated data;

the sending unit 801 is further configured to send the modulated data to the receiving end device.

Optionally, the processing unit 803 is configured to modulate, according to the first constellation diagram, data to be sent to obtain modulated data;

the sending unit 801 is configured to send the modulated data to the receiving end device.

The sending-end device 80 shown in the embodiment of the present application may execute the technical solution of the data transmission method shown in any one of the above embodiments, and the implementation principle and the beneficial effect thereof are similar, and are not described herein again.

It should be noted that the division of each unit of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processing element through software, and part of the units can be realized in the form of hardware. For example, the sending unit may be a processing element that is set up separately, may be implemented by being integrated in a chip of the sending end device, or may be stored in a memory of the sending end device in the form of a program, and may be called by a processing element of the sending end device to execute the function of the sending unit. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software. Further, the above transmission unit is a unit that controls transmission, and information can be transmitted by a transmission means of the transmitting-end apparatus, such as an antenna and a radio frequency device.

Fig. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 9, the terminal device includes: a processor 110, a memory 120, and a transceiver 130. The transceiver 130 may be connected to an antenna. In the downlink direction, the transceiver 130 receives information transmitted by the base station through the antenna and transmits the information to the processor 110 for processing. In the uplink direction, the processor 110 processes data of the terminal and transmits the processed data to the base station through the transceiver 130.

The memory 120 is used for storing a program for implementing the above method embodiment, or each unit in the embodiment shown in fig. 7, and the processor 110 calls the program to execute the operation of the above method embodiment to implement each unit shown in fig. 7.

Alternatively, part or all of the above units may be implemented by being embedded in a chip of the terminal device in the form of an integrated circuit. And they may be implemented separately or integrated together. That is, the above units may be configured as one or more integrated circuits implementing the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others.

Fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 10, the network device includes: antenna 110, rf device 120, and baseband device 130. The antenna 110 is connected to the rf device 120. In the uplink direction, the rf device 120 receives information transmitted by the terminal through the antenna 110, and transmits the information transmitted by the terminal to the baseband device 130 for processing. In the downlink direction, the baseband device 130 processes the information of the terminal device and sends the information to the rf device 120, and the rf device 120 processes the information of the terminal device and sends the processed information to the terminal device through the antenna 110.

In one implementation, the above units are implemented in the form of a processing element scheduler, for example, the baseband device 130 includes a processing element 131 and a storage element 132, and the processing element 131 calls a program stored in the storage element 132 to execute the method in the above method embodiment. The baseband device 130 may further include an interface 133 for exchanging information with the rf device 120, such as a Common Public Radio Interface (CPRI).

In another implementation, the units may be one or more processing elements configured to implement the above method, the processing elements are disposed on the baseband apparatus 130, and the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, etc. These integrated circuits may be integrated together to form a chip.

For example, the above modules may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, the baseband device 130 includes an SOC chip for implementing the above method. The chip can integrate the processing element 131 and the storage element 132, and the processing element 131 calls the stored program of the storage element 132 to realize the above method or the functions of the above units; or, at least one integrated circuit may be integrated in the chip, for implementing the above method or the functions of the above units; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

In any case, the above network device comprises at least one processing element, a storage element and a communication interface, wherein the at least one processing element is configured to perform the method provided by the above method embodiments. The processing element may: i.e. the way the program stored by the storage element is executed, performs part or all of the steps in the above method embodiments; it is also possible in a second way: that is, some or all of the steps in the above method embodiments are performed by integrated logic circuits of hardware in a processor element in combination with instructions; of course, the method provided by the above method embodiment can also be executed in combination with the first manner and the second manner.

The processing elements herein, like those described above, may be a general purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others.

The storage element may be a memory or a combination of a plurality of storage elements.

The present application also provides a storage medium comprising: a readable storage medium and a computer program for implementing the method for transmitting data provided by any of the foregoing embodiments.

The present application also provides a program product comprising a computer program (i.e. executing instructions), the computer program being stored in a readable storage medium. The computer program may be read from a readable storage medium by at least one processor of the sink device, and the computer program is executed by the at least one processor to cause the sink device to implement the transmission method of data provided in the foregoing various embodiments.

An embodiment of the present application further provides a data transmission apparatus, which includes at least one storage element and at least one processing element, where the at least one storage element is used to store a program, and when the program is executed, the data transmission apparatus executes the operation of the receiving end device in any of the above embodiments.

The present application also provides a program product comprising a computer program (i.e. executing instructions), the computer program being stored in a readable storage medium. The computer program may be read from a readable storage medium by at least one processor of the transmitting end device, and the computer program is executed by the at least one processor to cause the network device to implement the data transmission method provided by the foregoing various embodiments.

The embodiment of the present application further provides a data transmission apparatus, which includes at least one storage element and at least one processing element, where the at least one storage element is used to store a program, and when the program is executed, the data transmission apparatus is enabled to perform the operation of the network device in any of the above embodiments.

All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (optical disk), and any combination thereof.

Claims

1. A method for transmitting data, comprising:

the receiving end equipment determines a receiving mode of a constellation diagram for receiving data according to the distortion mode, wherein the receiving mode of the constellation diagram corresponding to various distortion modes is stored in the receiving end equipment;

the receiving end equipment determines the receiving mode of the constellation diagram according to the corresponding relation between the distortion mode and the receiving mode of the constellation diagram and receives data from the sending end equipment;

the receiving end equipment determines the distortion mode of the constellation diagram of the data according to the received distorted training data, and the method comprises the following steps:

2. The method according to claim 1, wherein the receiving end device determines a receiving mode of a constellation map for receiving data according to the distortion mode, and the method comprises:

3. The method of claim 1, wherein the receiving end device determines a receiving mode of a constellation diagram for receiving data according to the distortion mode, comprising:

4. The method according to claim 1, wherein the receiving end device determines a receiving mode of a constellation map for receiving data according to the distortion mode, and the method comprises:

the receiving end device sends the distortion mode to the transmitting end device, where the distortion mode is used to instruct the transmitting end device to determine the second constellation diagram;

5. The method of claim 1,

the receiving end device determines a receiving mode of a constellation diagram for receiving data according to the distortion mode, and the receiving mode comprises the following steps:

the receiving end device sends the distortion mode to the sending end device, and the distortion mode is used for indicating the sending end device to determine a second constellation diagram;

6. The method of claim 1,

the receiving end device determines a receiving mode of a constellation diagram for receiving data according to the distortion mode, and the method comprises the following steps:

7. A method for transmitting data, comprising:

sending training data to receiving end equipment by sending end equipment, wherein the training data are known by the sending end equipment and the receiving end equipment and comprise at least one of a synchronous signal, a reference signal and special user plane training data; the distorted training data is used for the receiving end equipment to determine a distortion mode of a constellation diagram of the data;

the sending end equipment determines a receiving mode of a constellation diagram used for sending data according to the distortion mode, and determines the receiving mode of the constellation diagram according to the corresponding relation between the distortion mode and the receiving mode of the constellation diagram to send the data to the receiving end equipment; or the sending end device sends data to the receiving end device according to the first constellation diagram, wherein the receiving end device stores the receiving modes of the constellation diagrams corresponding to various distortion modes;

the determining, by the sending end device, a receiving mode of a constellation diagram used for sending data according to the distortion mode specifically includes:

8. The method according to claim 7, wherein the sending end device determines a receiving mode of a constellation diagram used for sending data according to the distortion mode, and sends data to the receiving end device according to the determined receiving mode of the constellation diagram, and the method includes:

9. The method of claim 7, wherein the transmitting end device transmits data to the receiving end device according to the first constellation diagram, and wherein the transmitting end device includes:

10. A receiving-end device, comprising:

the processing unit is further configured to determine a receiving mode of a constellation diagram used for receiving data according to the distortion mode, where the receiving end device stores the receiving modes of the constellation diagrams corresponding to various distortion modes;

the receiving unit is further configured to determine, according to a correspondence between the distortion mode and a receiving mode of the constellation, a receiving mode of the constellation to receive data from the transmitting end device;

the processing unit is specifically configured to:

11. The receiving-end device of claim 10, wherein the processing unit is specifically configured to:

the receiving unit is specifically configured to:

12. The sink device according to claim 10, wherein the sink device further comprises: a transmitting unit;

the processing unit is specifically configured to:

determining a first constellation diagram corresponding to a distortion mode according to a prestored corresponding relation between the distortion mode and the constellation diagram;

13. The sink device according to claim 10, wherein the sink device further comprises: a transmitting unit;

the processing unit is specifically configured to:

the receiving unit is further configured to demodulate the received data according to the second constellation diagram.

14. The sink device according to claim 10, wherein the sink device further comprises: a transmitting unit;

the processing unit is specifically configured to:

the sending unit is configured to send the distortion mode to the sending end device, where the distortion mode is used to instruct the sending end device to determine a second constellation diagram;

15. The sink device according to claim 10, wherein the sink device further comprises: a transmitting unit;

the processing unit is specifically configured to:

16. A transmitting-end device, comprising:

a processing unit, configured to determine a receiving mode of a constellation diagram used for sending data according to the distortion mode, where the receiving end device stores the receiving modes of the constellation diagrams corresponding to various distortion modes;

the transmitting unit is further configured to determine, according to a correspondence between the distortion mode and a receiving mode of the constellation, a receiving mode of the constellation and transmit data to the receiving end device; or, the sending unit is further configured to send data to the receiving end device according to the first constellation diagram;

the processing unit is specifically configured to:

17. The sending-end device of claim 16, wherein the processing unit is further configured to determine a second constellation corresponding to the distortion mode according to a pre-stored correspondence between the distortion mode and the constellation;

18. The sending end device according to claim 16, wherein the processing unit is configured to modulate, according to the first constellation diagram, data to be sent to obtain modulated data;