Method for wireless communication and communication device

Abstract

Provided are a method for wireless communication and a communication device. The method comprises: if a use condition of a first solution is met, a first device performs signal modulation or signal demodulation on the basis of the first solution. The first solution is one of a plurality of solutions for signal modulation or signal demodulation, and the plurality of solutions are associated with a plurality of use conditions, respectively. In the present application, if a use condition of a first solution is met, a first device performs signal modulation or signal demodulation on the basis of the first solution among a plurality of solutions, thereby facilitating selection of a proper signal modulation / demodulation solution by the first device to adapt to different use conditions.

Description

Method and device for wireless communication Technical Field

[0001] The present application relates to the field of communication technology, and more particularly to a method and a communication device for wireless communication. Background Art

[0002] In wireless communication systems, a variety of schemes are available for signal modulation or demodulation. However, different schemes are applicable in different situations. Therefore, how to select a signal modulation or demodulation scheme to suit different situations is an unresolved problem.

[0003] Summary of the Invention

[0004] The present application provides a method and a communication device for wireless communication. The following introduces various aspects of the present application.

[0005] In a first aspect, a method for wireless communication is provided, comprising: if a usage condition of a first scheme is met, a first device performs signal modulation or signal demodulation according to the first scheme, wherein the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

[0006] In a second aspect, a method for wireless communication is provided, including: a first device receives first information sent by a second device, the first information being used to indicate a first scheme; the first device performs signal modulation or signal demodulation according to the first scheme; wherein the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

[0007] According to a third aspect, a communication device is provided, which is a first device and includes: a modulation / demodulation module for performing signal modulation or signal demodulation according to a first scheme when a usage condition of the first scheme is met, wherein the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

[0008] In a fourth aspect, a communication device is provided, which is a second device, and includes: a receiving module for receiving first information sent by the second device, wherein the first information is used to indicate a first scheme; a modulation / demodulation module for performing signal modulation or signal demodulation according to the first scheme; wherein the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

[0009] In a fifth aspect, a communication device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory so that the communication device executes the method described in the first aspect.

[0010] In the sixth aspect, a communication device is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the communication device executes the method described in the second aspect.

[0011] In a seventh aspect, a device is provided, comprising a processor for calling a program from a memory so that the device executes the method as described in the first aspect or the second aspect.

[0012] In an eighth aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0013] In a ninth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] In a tenth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0015] In an eleventh aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0016] In the present application, if the usage conditions of the first scheme are met, the first device performs signal modulation or signal demodulation according to the first scheme among multiple schemes, which helps the first device select a suitable signal modulation / demodulation scheme to adapt to different usage conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a wireless communication system to which an embodiment of the present application is applicable.

[0018] FIG2 is an example diagram of a 16QAM constellation diagram.

[0019] Figure 3 is an example diagram of high-dimensional signal modulation / demodulation based on AI.

[0020] FIG4 is an example diagram showing the effect of phase noise on the 16QAM modulation constellation diagram.

[0021] FIG5 is a schematic flowchart of a method for wireless communication provided in an embodiment of the present application.

[0022] 6A-6B are schematic flow charts of a method for wireless communication provided by another embodiment of the present application.

[0023] 7A-7B are schematic flow charts of a method for wireless communication provided in another embodiment of the present application.

[0024] 8A-8B are schematic flow charts of a method for wireless communication provided by another embodiment of the present application.

[0025] 9A-9B are schematic flow charts of a method for wireless communication provided by another embodiment of the present application.

[0026] FIG10 is a schematic structural diagram of a communication device provided in an embodiment of the present application.

[0027] FIG11 is a schematic structural diagram of a communication device provided in another embodiment of the present application.

[0028] FIG12 is a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solution in this application will be described below with reference to the accompanying drawings.

[0030] Communication system architecture

[0031] FIG1 is a diagram illustrating an exemplary system architecture of a wireless communication system 100 to which embodiments of the present application may be applied. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area.

[0032] FIG1 exemplarily shows a network device and a terminal device. Optionally, the wireless communication system 100 may include one or more network devices 110 and / or one or more terminal devices 120. For a network device 110, the one or more terminal devices 120 may all be located within the network coverage of the network device 110, or all be located outside the network coverage of the network device 110, or some may be located within the coverage of the network device 110 and others outside the network coverage of the network device 110. This is not limited in the embodiments of the present application.

[0033] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0034] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0035] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D). For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0036] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device (D2D), V2X, and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network device.

[0037] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0038] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0039] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0040] Traditional signal modulation / demodulation methods

[0041] Signal modulation is the process of converting the information bits generated by the signal source into a form suitable for transmission over a wireless channel, while signal demodulation is the inverse process of signal modulation. In NR and LTE systems, the main signal modulation methods used may include phase shift keying (PSK) and quadrature amplitude modulation (QAM). Specifically, they are both modulation methods that jointly key the amplitude and phase. Because their vector diagrams are similar to constellations, constellations are often used to represent them. In wireless communication systems, signals are usually represented using complex numbers. As shown in the 16QAM constellation diagram in Figure 2, the horizontal and vertical coordinates of the constellation diagram correspond to the size of the real and imaginary parts of the complex signal, respectively. During the communication process, both communicating parties need to reach a consensus on the modulation method. Currently, there are seven modulation / demodulation methods available for each channel in the physical layer. These seven modulation methods are π / 2 binary phase shift keying (BPSK), BPSK, quadrature phase shift keying (QPSK), 16QAM, 64QAM, 256QAM, and 1024QAM. Due to the varying constellation density, these modulation methods offer varying communication efficiency and resistance to noise and interference. For example, compared to 16QAM, 256QAM signals can carry more information, but their noise immunity is significantly reduced.

[0042] Signal modulation and demodulation based on artificial intelligence (AI)

[0043] In theory, maximizing the communication capacity of a wireless communication system requires maximizing the mutual information between the transmitted signal (X) and the received signal (Y) after passing through the wireless channel. Since Y = H*X+N (where H represents the wireless channel and N represents the noise), it can be deduced that to maximize communication capacity, the optimal modulation signal (X) must be calculated based on the channel (H) it passes through.

[0044] However, due to a trade-off between signal modulation freedom and control / indication signaling overhead, the available signal modulation methods are limited (i.e., the seven methods mentioned above). Although the optimal signal modulation method is theoretically determined by the channel environment in which the signal is transmitted, real-world channel conditions are ever-changing, and selecting only from a limited set of modulation methods may not achieve the optimal match for the channel environment, thus limiting communication performance.

[0045] With the development of AI technology, AI-based signal modulation methods are helping to address the aforementioned issues. AI-based signal modulation methods aim to enable AI models to generate modulation constellations based on specific channel information, enabling communication systems to determine the most appropriate signal modulation scheme based on the current actual channel environment, thereby improving communication efficiency. Unlike traditional modulation methods, AI models can flexibly generate the most suitable modulation constellation based on specific channel conditions, achieving truly customized signal modulation tailored to the channel. Furthermore, by leveraging the high flexibility and powerful fitting capabilities of AI technology, AI-based signal modulation methods can break through the limitations of the transmission layer and treat the multiple parallel transmission layers constructed by a multiple-input, multiple-output (MIMO) system as a combined high-dimensional space, within which high-dimensional signal modulation can be performed. For example, as shown in Figure 3, AI can combine the N mutually non-interfering transmission layers constructed by a MIMO system into a 2N-dimensional modulation space (each layer provides two dimensions, and together they can be viewed as a 2N-dimensional space), within which high-dimensional signal modulation and demodulation can be performed.

[0046] Link Adaptation

[0047] Wireless communication channel conditions vary with the communication environment, resulting in significant uncertainty. Theoretically, no single signal modulation or precoding scheme is universally applicable to all channel conditions. Link adaptation technology, however, adaptively adjusts the system's transmission parameters based on currently acquired channel state information to overcome or adapt to the effects of current channel variations. The basic principles of link adaptation technology reveal that it primarily encompasses two aspects: the acquisition of channel information (often achieved through channel state information (CSI) feedback), effectively and efficiently determining the current channel environment parameters; and the adjustment of transmission parameters.

[0048] Switching of signal modulation / demodulation schemes

[0049] In NR and LTE systems, the difference between the above seven modulation modes lies only in the different constellation point densities under the same arrangement rules. Therefore, switching between the above seven modulation modes can be completed only based on the signal-to-noise ratio (SNR) / signal-to-interference noise ratio (SINR) information of the channel (i.e., the channel quality indicator (CQI) in the CSI feedback). When the CQI is high, it indicates good channel quality, and the transmitter will select a high-order modulation mode; when the CQI is low, it indicates poor channel quality, and the transmitter will select a low-order modulation mode. Unlike the CQI, which represents the channel energy information in a coarse granularity, the precoding matrix indicator (PMI) represents the channel angle information in a finer granularity. Different precoding schemes at the transmitter have different requirements for PMI accuracy. When the transmitter can only obtain low-precision PMI (for example, through Type 1 codebook feedback), the system often adopts a relatively simple precoding scheme (such as single data stream / transport layer transmission). When the transmitter can obtain high-precision PMI (for example, through Type 2 or enhanced Type 2 codebook feedback), the system often adopts a more complex precoding scheme (such as multi-data stream / transport layer transmission) to improve information transmission efficiency.

[0050] According to the previous description, the advantage of the AI-based signal modulation / demodulation method is that it can flexibly generate the most appropriate modulation constellation diagram according to the specific channel conditions, that is, to achieve "customized" signal modulation that is truly adapted to the channel. In particular, when the AI ​​modulation method is applied to the joint high-dimensional modulation space constructed by multiple transmission layers, the performance ceiling it can provide will be further significantly improved. However, this also makes the AI-based signal modulation method have higher requirements for the accuracy and real-time performance of channel information, and has higher requirements for the hardware capabilities of the signal transmitter and receiver. Its robustness is not as good as the relatively rough traditional signal modulation method.

[0051] On the one hand, in actual communication systems, obtaining high-precision, real-time channel state information often comes at a cost. For example, for high-speed mobile terminals, the channel can change significantly every ten or even several milliseconds. To ensure the accuracy of feedback information, high-frequency feedback is required. Relying on "outdated" channel information for AI signal modulation will lead to a mismatch between the modulated signal and the actual transmitted signal, and may even fail to improve performance and even be counterproductive.

[0052] At the same time, AI-based high-dimensional signal modulation relies on constructing multiple mutually orthogonal, non-interfering equivalent channels through MIMO at both the transmitter and receiver to carry multiple data streams / transmission layers. Only when the transmitter can obtain high-precision PMI can the constructed data streams / transmission layers be guaranteed to be mutually orthogonal; otherwise, inter-stream interference will occur. Transmitting high-dimensional modulated signals in the presence of inter-stream interference makes errors more likely to occur at the demodulator, leading to an increase in the symbol error rate (SER).

[0053] On the other hand, higher-precision modulation methods also place higher demands on the hardware at the transmit and receive ends. For example, traditional modulation constellations generally present a regular rectangular shape (see Figure 2). While not optimal, this is easier for modulation and demodulation hardware to handle. Furthermore, the non-ideal characteristics of RF hardware can introduce additional noise and nonlinear distortion to the signal. As wireless communication frequency bands increase and the required bandwidth grows, the distortion caused by RF non-idealities is becoming increasingly significant. Common factors that negatively impact modulated signals include power amplifier (PA) nonlinear distortion, in-phase / quadrature (I / Q) imbalance, and phase noise. For example, the impact of phase noise on the 16QAM modulation constellation diagram can be seen in Figure 4. However, high-precision signal modulation is less resistant to this type of distortion.

[0054] In summary, AI-based signal modulation / demodulation methods are not always the best signal modulation / demodulation schemes. In some situations where AI-based signal modulation / demodulation methods are not suitable, traditional signal modulation / demodulation methods can be used. However, with the introduction of AI modulation methods, their dependence on channel information accuracy and real-time performance will be greatly increased. Therefore, switching between AI modulation and traditional modulation, and between different AI modulations, requires the introduction of more complex mechanisms. Therefore, how to select signal modulation or signal demodulation schemes to adapt to different situations is an issue that needs to be solved.

[0055] Based on this, the method for wireless communication provided by an embodiment of the present application is described in detail below in conjunction with Figure 5. The method shown in Figure 5 is applicable to any terminal device and / or network device described above. For ease of understanding, the first device and the second device are used below to represent the devices to which this method is applicable. If the first device in the embodiment of the present application can be a terminal device, then the second device can be a network device. Alternatively, the first device in the embodiment of the present application can also be a network device, then the second device can be a terminal device. The method shown in Figure 5 can be applied to the uplink transmission process, that is, the signal sending end is a terminal device. The method shown in Figure 5 can also be applied to the downlink transmission process, that is, the signal sending end is a network device.

[0056] As shown in Figure 5, the method of an embodiment of the present application may include step S510. In step S510, if the usage conditions of the first scheme are met, the first device performs signal modulation or signal demodulation according to the first scheme. The first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions. The usage conditions of different first schemes are different, that is, there may be a mapping relationship or an association relationship between the first scheme and the usage conditions. Exemplarily, the mapping relationship between the first scheme and the usage conditions may be a one-to-one mapping relationship, that is, one first scheme corresponds to one usage condition. Alternatively, the mapping relationship between the first scheme and the usage conditions may also be a one-to-many mapping relationship, that is, one first scheme corresponds to multiple usage conditions.

[0057] The first scheme may include one or more of the following: a signal modulation scheme based on a model, such as an AI-based signal modulation scheme; a signal modulation scheme based on a predefined modulation constellation diagram, which may refer to the modulation constellation diagram in the traditional signal modulation / demodulation method described above; a modulation constellation diagram generated based on a model, such as a modulation constellation diagram generated based on AI. Among them, the signal modulation scheme based on the model may include one or more of the following: a first signal modulation scheme based on a model, which may be used to modulate data on a single transmission layer, and the dimension of the first signal modulation scheme is two-dimensional; a second signal modulation scheme based on a model, which may be used to jointly modulate data streams on multiple transmission layers, and the dimension of the second signal modulation scheme is 2N, where N is the number of transmission layers. For ease of understanding, the second signal modulation scheme may also be referred to as a high-dimensional modulation scheme.

[0058] In the present application, if the usage conditions of the first scheme are met, the first device performs signal modulation or signal demodulation according to the first scheme among multiple schemes, which helps the first device select a suitable signal modulation / demodulation scheme to adapt to different usage conditions.

[0059] The following describes in detail the conditions for use of the first solution (hereinafter referred to as the "first conditions") in conjunction with Tables 1 to 8. For example, Arabic numerals may be used to identify the first solution in the following tables to distinguish different first solutions. Of course, the identification of the first solution may also be in other forms, and this application does not limit this.

[0060] The conditions for use of the first scheme may be associated with one or more of the following information (hereinafter referred to as "condition information"): the moving speed of the terminal device; channel measurement information; CSI feedback-related information; channel energy; channel quality; operating frequency band; operating bandwidth; phase noise-related information; type of power amplifier; and capability of the terminal device. It is worth noting that when the first device is a terminal device, the terminal device here refers to the first device. When the first device is a network device, the terminal device is a terminal device that communicates with the first device. The channel here may refer to an uplink channel or a downlink channel between the first device and the second device, and the operating frequency band / operating bandwidth here may refer to the operating frequency band / operating bandwidth of the first device and / or the second device. The phase noise here may refer to the phase noise of the radio frequency device of the first device and / or the second device, and the power amplifier here may refer to the power amplifier of the first device and / or the second device.

[0061] The use conditions of the first scheme can be linked to the terminal device's speed, which has a certain impact on the performance of the signal modulation / demodulation scheme. For example, when a terminal device is moving at high speed, the channel between the network device and the terminal device can change rapidly due to factors such as the Doppler effect. In this case, the modulation constellation generated by the AI-based signal modulation scheme based on specific channel information may "mismatch" with the actual channel required for transmission due to differences in channel variations, resulting in performance loss. Conversely, this problem does not occur in scenarios with slow movement. Therefore, different first schemes can be selected for signal modulation or demodulation based on the terminal device's speed. For example, as shown in Table 1, the first schemes can be mapped to the terminal device's speed ranges, and different first schemes can be used for different terminal device speed ranges. For low terminal device speed ranges, the AI-based signal modulation scheme can be used, while for low terminal device speed ranges, the traditional signal modulation scheme can be used. Furthermore, for AI-based signal modulation schemes, high-dimensional modulation schemes or two-dimensional modulation schemes can be selected based on the terminal device's speed range. For example, the terminal device's speed range can be divided into low speed range, medium speed range, and high speed range. In low-speed ranges, an AI-based high-dimensional modulation scheme can be selected; in medium-speed ranges, an AI-based two-dimensional modulation scheme can be selected; and in high-speed ranges, a traditional modulation scheme can be selected. Determining the first scheme based on the terminal device's mobile speed helps to avoid the impact of the terminal device's mobile speed on signal modulation / demodulation.

[0062] Table 1

[0063] The use conditions of the first scheme can be associated with the channel measurement information, and the accuracy of the channel measurement also has a certain impact on the performance of the signal modulation / demodulation scheme. For example, for an AI-based modulation scheme, when the channel measurement itself is inaccurate and the error is large, the effect of the modulation constellation inferred by this scheme based on the channel measurement information may be impaired. Therefore, different first schemes can be selected for signal modulation or signal demodulation according to the accuracy of the channel measurement. Furthermore, in a communication system, channel measurement can be completed through reference signals. For example, reference signals such as the channel state information-reference signal (CSI-RS) and the demodulation reference signal (DMRS) sent by the network side can be used by the terminal device to measure the downlink channel, and reference signals such as the DMRS and the sounding reference signal (SRS) sent by the terminal device can be used by the network device to measure the uplink channel. Therefore, the accuracy of the channel measurement has a certain relationship with the configuration of the reference signal (such as time-frequency density, transmission period, coverage bandwidth, etc.). Therefore, the channel measurement information may include configuration information of a reference signal for channel measurement, and the configuration information of the reference signal for channel measurement may include a signal (or "pilot") configuration type or configuration set. For example, as shown in Table 2, the first solution may be mapped to the channel measurement pilot configuration type or pilot configuration set, and different channel measurement pilot configuration types or pilot configuration sets may correspond to different first solutions. Determining the first solution based on the accuracy of the channel measurement helps to avoid the impact of the accuracy of the channel measurement on signal modulation / demodulation.

[0064] Table 2

[0065] The conditions for using the first scheme can be linked to CSI feedback-related information. The accuracy of CSI feedback also has a certain impact on the performance of the signal modulation / demodulation scheme. For example, AI-based high-dimensional modulation schemes rely on constructing multiple mutually orthogonal, non-interfering equivalent channels through MIMO at both the transmitter and receiver to carry multiple parallel data streams / transmission layers. Only when the transmitter can obtain high-precision CSI can the constructed data streams / transmission layers be guaranteed to be mutually orthogonal; otherwise, inter-stream interference will occur. Transmitting high-dimensional modulated signals in the presence of inter-stream interference makes errors more likely to occur at the demodulator, resulting in an increase in the symbol error rate. Therefore, different first schemes can be selected for signal modulation or demodulation based on the accuracy of CSI feedback. Furthermore, the main factor determining CSI feedback accuracy is the communication system's CSI feedback-related configuration (such as feedback method and feedback period). For example, feedback based on the Type 1 codebook can ensure relatively low accuracy, feedback based on the enhanced Type 2 codebook can ensure high accuracy, and AI-based CSI feedback schemes can provide even higher accuracy. Therefore, CSI feedback-related information may include configuration information for CSI feedback, and the configuration information for CSI feedback may include information such as the CSI feedback mode (or method), feedback period, and the like. For example, as shown in Table 3, a first solution may be mapped to a CSI feedback method and / or a CSI feedback configuration set. Different CSI feedback methods and / or CSI feedback configuration sets may correspond to different first solutions. Determining the first solution based on the accuracy of the CSI feedback helps to prevent the impact of the CSI feedback accuracy on signal modulation / demodulation.

[0066] Table 3

[0067] The conditions for using the first scheme can be associated with channel energy, which also has a certain impact on the performance of the signal modulation / demodulation scheme. Therefore, different first schemes can be selected for signal modulation or demodulation based on different channel energies. The first schemes can be mapped to channel energy intervals, with different channel energy intervals corresponding to different first schemes. Determining the first scheme based on channel energy helps mitigate the impact of channel energy on signal modulation / demodulation.

[0068] The use conditions of the first scheme can be associated with the channel quality, and the channel quality also has a certain impact on the performance of the signal modulation / demodulation scheme. For example, under different channel qualities, the degree to which the modulated signal is affected by noise or interference is different. Therefore, different first schemes can be selected for signal modulation or signal demodulation according to different channel qualities. For example, as shown in Table 4, the first scheme can have a mapping relationship with the channel quality interval, and different channel quality intervals can correspond to different first schemes. Furthermore, indicators commonly used in communication systems to characterize channel quality may include reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indicator (RSSI), signal to interference noise ratio (SINR), signal to noise ratio (SNR), CQI, etc., so the channel quality interval can be determined based on indicators characterizing channel quality. Determining the first scheme based on channel quality helps to avoid the impact of channel quality on signal modulation / demodulation.

[0069] Table 4

[0070] The conditions for use of the first solution can be associated with the working frequency band / working bandwidth, and the working frequency band / working bandwidth also has a certain impact on the performance of the signal modulation / demodulation solution. For example, at different frequency bands or at different bandwidths, the degree of noise or distortion introduced to the signal by the RF hardware will be different. For example, for communication equipment operating in a high frequency band, the deviation between the crystal oscillators of the communicating parties will cause serious phase noise, thereby affecting the performance of modulation and demodulation. Therefore, different first solutions can be selected for signal modulation or signal demodulation according to the working frequency band / working bandwidth. For example, as shown in Table 5, the first solution can have a mapping relationship with the frequency band / bandwidth type or the frequency band / bandwidth type set, and different frequency band / bandwidth types or the frequency band / bandwidth type set can correspond to different first solutions. Determining the first solution based on the working frequency band / working bandwidth helps to avoid the influence of the working frequency band / working bandwidth on signal modulation / demodulation.

[0071] Table 5

[0072] The conditions for use of the first scheme can be associated with phase noise-related information, and phase noise also has a certain impact on the performance of the signal modulation / demodulation scheme. As shown in Figure 4, phase noise can have a significant negative impact on the modulated signal, especially for high frequency bands and even ultra-high frequency bands. Therefore, different first schemes can be selected for signal modulation or signal demodulation according to the different capabilities of the communication system to resist phase noise. Furthermore, the phase tracking reference signal (PTRS) can be used for phase noise measurement or compensation in the communication system. And the compensation effect of phase noise is closely related to the relevant configuration of PTRS, such as time-frequency density, transmission period, occupied bandwidth, etc. Therefore, the phase noise-related information may include the configuration information of the phase tracking reference signal. For example, as shown in Table 6, the first scheme can have a mapping relationship with the phase tracking pilot configuration set, and different phase tracking pilot configuration sets can correspond to different first schemes. Determining the first scheme based on phase noise helps to avoid the impact of phase noise on signal modulation / demodulation.

[0073] Table 6

[0074] The conditions for use of the first scheme may be associated with the type of power amplifier, and the power amplifier also has a certain influence on the performance of the signal modulation / demodulation scheme. For example, different PAs (such as different models or types) have different operating characteristics (such as linear range), and thus the degree of nonlinear distortion introduced to the modulated signal is also different. Therefore, different first schemes may be selected for signal modulation or signal demodulation according to different models or types of power amplifiers. For example, as shown in Table 7, the first scheme may have a mapping relationship with the PA model / type or PA model / type set, and different PA models / types or PA model / type sets may correspond to different first schemes. Determining the first scheme based on the power amplifier helps to avoid the influence of the power amplifier on signal modulation / demodulation.

[0075] Table 7

[0076] The conditions for using the first solution can be linked to the capabilities of the terminal device, which also have a certain impact on the performance of the signal modulation / demodulation solution. Traditional modulation constellations generally present a regular square shape (see Figure 2). While not optimal, they are easier for modulation and demodulation hardware to handle. While AI-based modulation constellations offer greater flexibility, the density and distribution of their constellation points may be more complex, but they place higher demands on the hardware at the transceiver end. Therefore, different first solutions can be selected for signal modulation or demodulation based on the different capabilities of the terminal device. Furthermore, the capabilities of the terminal device can be determined by its capability information. The capability information of the terminal device can include the UE capability category. Terminal devices of different UE capability categories have different restrictions on the modulation accuracy and number of transmission layers they can support, which may have different impacts on AI-based two-dimensional modulation and even high-dimensional modulation. Therefore, as shown in Table 8, the first solution can be mapped to the UE capability category, and different UE capability categories can correspond to different first solutions. Determining the first solution based on the capabilities of the terminal device helps to avoid the impact of the terminal device's capabilities on signal modulation / demodulation.

[0077] Table 8

[0078] The usage conditions of the first solution may also be associated with a variety of information in the above information. For example, the usage conditions of the first solution may be associated with the mobile speed of the terminal device and CSI feedback-related information. For another example, the usage conditions of the first solution may also be associated with the operating frequency band / operating bandwidth and phase noise. By determining the usage conditions based on the above information, the impact of different working scenarios and usage conditions on signal modulation / demodulation can be taken into account, which helps to ensure that the most appropriate modulation / demodulation scheme is selected in different situations, thereby taking into account both communication efficiency and reliability.

[0079] In some implementations, the method shown in FIG5 may further include step S520. In step S520, the first device sends first information to the second device. The first information may be used to indicate the first scheme. That is, the first device may indicate the first scheme to the second device, thereby facilitating the second device to switch its signal modulation or demodulation scheme.

[0080] Furthermore, the first information may include one or more of the following: an identifier of the first scheme; the first scheme. The identifier of the first scheme may include an identifier of the first scheme itself or an identifier of the first model (a model used for signal modulation or signal demodulation). Alternatively, the identifier of the first scheme may also include an identifier of the association between the first scheme and the first condition. The first scheme may include a constellation modulation diagram or a first model, and the constellation modulation diagram may refer to the constellation modulation diagram corresponding to the traditional modulation method described above or the constellation modulation diagram corresponding to the first model. The first information may be sent through channels such as a broadcast channel, a radio resource control (RRC), a medium access control (MAC) control element (CE), a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a physical uplink control channel (PUCCH), and a physical uplink shared channel (PUSCH).

[0081] In some implementations, the method shown in FIG5 may further include step S500 before step S510. In step S500, the first device receives second information sent by the second device. The second information may be used by the first device to determine the first solution. That is, the second device may provide the second information to the first device to assist the first device in determining the first solution.

[0082] Furthermore, the second information may be used to indicate one or more of the following: information used to determine some or all of the usage conditions among multiple usage conditions (hereinafter referred to as "partial or all of the condition information"); the association between some or all of the usage conditions and some or all of the schemes among multiple schemes (hereinafter referred to as "partial or all of the association relationship"). Some or all of the condition information may include information that the first device cannot know, such as the moving speed of the second device, the capability level of the second device, the PA type of the second device, the configuration of the reference signal of the second device, etc. Some or all of the association relationships may include association relationships that are not defined by the protocol or that the first device cannot determine by itself. The second information may be sent through channels such as broadcast messages, RRC, MAC CE, PUCCH, PUSCH, PDCCH, PDSCH, etc.

[0083] In some implementations, the association between the first condition and the first solution may be predefined by the protocol and / or determined independently by the first device. For example, the association between the first condition and the first solution may be entirely predefined by the protocol. In another example, the association between the first condition and the first solution may be entirely determined independently by the first device. In another example, the association between the first condition and the first solution may be partially predefined by the protocol and partially determined independently by the first device.

[0084] In other implementations, the association between the first condition and the first solution may be provided by a second device. For example, the association between the first condition and the first solution may be provided entirely by the second device. In another example, the association between the first condition and the first solution may also be partially provided by the second device.

[0085] The following describes the method for wireless communication provided by the embodiments of the present application in combination with Embodiments 1 to 4. It should be noted that in the following description, the first solution may be the first processing solution.

[0086] Example 1

[0087] In the first embodiment, the association between the first condition and the first processing solution can be completely predefined by the protocol and / or determined by the first device itself, and the first device can obtain all the condition information. As shown in Figure 6, the method in the first embodiment can include steps S610 to S620.

[0088] In FIG6A , the first device is a network device, and the second device is a terminal device. Referring to FIG6A , in step S610, the network device determines a first processing solution. The network device may determine the first processing solution based on usage conditions and association relationships. In step S620, the network device sends an indication of the first processing solution or the first processing solution to the terminal device.

[0089] In FIG6B , the first device is a terminal device, and the second device is a network device. Referring to FIG6B , in step S610, the terminal device determines a first processing solution. The terminal device may determine the first processing solution based on usage conditions and an association relationship. In step S620, the terminal device sends an indication of the first processing solution or the first processing solution to the network device.

[0090] Based on the method of Example 1, the first device can determine the first solution based on the usage conditions and the relationship between the usage conditions and the first solution, helping to adapt the signal modulation / demodulation solution to different situations. Furthermore, after determining the first processing solution, the first device can indicate the first processing solution to the second device, helping the second device switch the signal modulation or demodulation solution.

[0091] Example 2

[0092] In Example 2, the association between the first condition and the first processing solution can be entirely predefined by the protocol and / or independently determined by the first device, but the first device cannot obtain some or all of the condition information. In this case, the condition information can be provided by the second device. The second device can provide all or some of the condition information, while the remaining condition information is predefined by the protocol or independently determined by the first device. As shown in Figure 7, the method in Example 2 may include steps S710 to S730.

[0093] In Figure 7A, the first device is a network device, and the second device is a terminal device. Referring to Figure 7A, in step S710, the terminal device reports condition information to the network device. The condition information reported by the terminal device may include the terminal device's mobile speed, PA model, capability level, and so on. In step S720, the network device determines a first processing solution. After receiving the condition information, the network device may determine the first processing solution based on the usage conditions and the association relationship. In step S730, the network device sends an indication of the first processing solution or the first processing solution to the terminal device.

[0094] In Figure 7B , the first device is a terminal device, and the second device is a network device. Referring to Figure 7B , in step S710, the network device sends conditional information to the terminal device. The conditional information sent by the network device may include the network device's PA type, reference signal configuration information, and the like. In step S720, the terminal device determines a first processing solution. After obtaining the conditional information, the terminal device may determine the first processing solution based on the usage conditions and the association relationship. In step S730, the terminal device sends an indication of the first processing solution or the first processing solution to the network device.

[0095] Based on the method in Example 2, the second device can send condition information to the first device so that the first device can determine the first processing scheme. The first device can determine the first scheme based on the usage conditions and the relationship between the usage conditions and the first scheme, helping to adapt the signal modulation / demodulation scheme to different situations. The first device can also indicate the first processing scheme to the second device, helping the second device switch the signal modulation or demodulation scheme.

[0096] Example 3

[0097] In Example 3, let's take the example of a situation where the first device is unable to obtain some or all of the associations between the first condition and the first processing solution, but can obtain all of the condition information. In this case, the associations between the first condition and the first processing solution can be provided by the second device. The second device can provide all or part of the associations, while the remaining associations are predefined by the protocol or determined independently by the first device. As shown in Figure 8, the method in Example 3 may include steps S810 to S830.

[0098] In Figure 8A, the first device is a network device, and the second device is a terminal device. Referring to Figure 8A, in step S810, the terminal device reports the association relationship to the network device. In step S820, the network device determines a first processing solution. After learning the association relationship, the network device can determine the first processing solution based on the association relationship and usage conditions. In step S830, the network device sends indication information of the first processing solution or the first processing solution to the terminal device. The indication information of the first processing solution can include an identifier of the association relationship, meaning that the network device can indirectly indicate the first processing solution to the terminal device via the identifier of the association relationship.

[0099] In Figure 8B , the first device is a terminal device, and the second device is a network device. Referring to Figure 8B , in step S810, the network device sends an association relationship to the terminal device. In step S820, the terminal device determines a first processing solution. After learning the association relationship, the terminal device can determine the first processing solution based on the association relationship and usage conditions. In step S830, the terminal device sends indication information of the first processing solution or the first processing solution to the network device. The indication information of the first processing solution can include an identifier of the association relationship, meaning that the terminal device can indirectly indicate the first processing solution to the network device via the identifier of the association relationship.

[0100] Based on the method in Example 3, the second device can send the association relationship to the first device so that the first device can determine the first processing solution. The first device can determine the first solution based on the usage conditions and the association between the usage conditions and the first solution, helping to adapt the signal modulation / demodulation solution to different situations. The first device can also indicate the first processing solution to the second device, helping the second device switch the signal modulation or demodulation solution.

[0101] Example 4

[0102] In the fourth embodiment, the first device is unable to obtain part or all of the association between the first condition and the first processing solution, and the first device is unable to obtain part or all of the condition information. In this case, the association between the first condition and the first processing solution can be provided by the second device. The second device can provide all the associations or provide part of the associations, while the remaining associations are predefined by the protocol or determined by the first device itself. In addition, the condition information can also be provided by the second device. That is, in addition to providing the associations, the second device can also provide or continuously update the condition information that the first device cannot obtain, so that the first device can make decisions. The second device can provide all the condition information or provide part of the condition information, while the remaining condition information is predefined by the protocol or determined by the first device itself. As shown in Figure 9, the method in the fourth embodiment can include steps S910 to S930.

[0103] In Figure 9A, the first device is a network device, and the second device is a terminal device. Referring to Figure 9A, in step S910, the terminal device reports association and condition information to the network device. The condition information reported by the terminal device may include the terminal device's mobile speed, PA model, capability level, and so on. In step S920, the network device determines a first processing solution. After learning the association and condition information, the network device can determine the first processing solution based on the association and usage conditions. In step S930, the network device sends an indication of the first processing solution or the first processing solution to the terminal device.

[0104] In Figure 9B , the first device is a terminal device, and the second device is a network device. Referring to Figure 9B , in step S910, the network device sends association and condition information to the terminal device. The condition information sent by the network device may include the network device's PA type, reference signal configuration information, and the like. After learning the association and condition information, the terminal device may determine a first processing solution based on the association and usage conditions. In step S920, the terminal device determines the first processing solution. In step S930, the terminal device sends an indication of the first processing solution or the first processing solution to the network device.

[0105] Based on the method of Example 4, the second device can send the association and condition information to the first device so that the first device can determine the first processing solution. The first device can determine the first solution based on the usage conditions and the association between the usage conditions and the first solution, helping to adapt the signal modulation / demodulation solution to different situations. The first device can also indicate the first processing solution to the second device, helping the second device switch the signal modulation or demodulation solution.

[0106] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 9 . The device embodiment of the present application is described in detail below in conjunction with Figures 10 to 12 . It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0107] Figure 10 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The communication device 1000 shown in Figure 10 is a first device and may include a modulation / demodulation module 1010. Modulation / demodulation module 1010 is configured to perform signal modulation or demodulation according to the first scheme when the usage conditions of the first scheme are met. The first scheme is one of multiple schemes for signal modulation or demodulation, and each of the multiple schemes is associated with multiple usage conditions.

[0108] In some implementations, the conditions for use of the first scheme are associated with one or more of the following information: the moving speed of the terminal device; channel measurement information; CSI feedback-related information; channel energy; channel quality; operating frequency band; operating bandwidth; phase noise-related information; type of power amplifier; and capabilities of the terminal device.

[0109] In some implementations, the channel measurement information includes configuration information of a reference signal used for channel measurement.

[0110] In some implementations, the CSI feedback-related information includes configuration information for CSI feedback.

[0111] In some implementations, the phase noise-related information includes configuration information of a phase tracking reference signal.

[0112] In some implementations, the communication device further includes: a sending module, configured to send first information to the second device, where the first information is used to indicate the first solution.

[0113] In some implementations, the first information includes one or more of the following: an identifier of the first solution; the first solution.

[0114] In some implementations, the communication device further includes a receiving module 1020. The receiving module 1020 is configured to receive second information sent by the second device, where the second information is used by the first device to determine the first solution.

[0115] In some implementations, the second information is used to indicate one or more of the following: information used to determine some or all of the usage conditions among multiple usage conditions; and an association relationship between some or all of the usage conditions and some or all of the multiple solutions.

[0116] In some implementations, the first scheme includes one or more of the following: a signal modulation scheme based on a model; a signal modulation scheme based on a predefined modulation constellation; a modulation constellation generated based on a model.

[0117] In some implementations, the model-based signal modulation scheme includes one or more of the following: a first model-based signal modulation scheme, the first signal modulation scheme is used to modulate data on a single transmission layer, and the dimension of the first signal modulation scheme is two-dimensional; a second model-based signal modulation scheme, the second signal modulation scheme is used to jointly modulate data streams on multiple transmission layers, and the dimension of the second signal modulation scheme is 2N, where N is the number of transmission layers.

[0118] In some implementations, the first device is a terminal device, and the second device is a network device; or, the first device is a network device, and the second device is a terminal device.

[0119] Figure 11 is a schematic diagram of the structure of a communication device according to another embodiment of the present application. The communication device 1100 shown in Figure 11 is a second device and may include a receiving module 1110. Receiving module 1110 is configured to receive first information sent by a first device, the first information being configured to indicate a first scheme; and a modulation / demodulation module configured to perform signal modulation or demodulation according to the first scheme. The first scheme is one of multiple schemes for signal modulation or demodulation, and each of the multiple schemes is associated with multiple usage conditions.

[0120] In some implementations, the conditions for use of the first scheme are associated with one or more of the following information: the moving speed of the terminal device; channel measurement information; CSI feedback-related information; channel energy; channel quality; operating frequency band; operating bandwidth; phase noise-related information; type of power amplifier; and capabilities of the terminal device.

[0121] In some implementations, the channel measurement information includes configuration information of a reference signal used for channel measurement.

[0122] In some implementations, the CSI feedback-related information includes configuration information for CSI feedback.

[0123] In some implementations, the phase noise-related information includes configuration information of a phase tracking reference signal.

[0124] In some implementations, the first information includes one or more of the following: an identifier of the first solution; the first solution.

[0125] In some implementations, the communication device further includes a sending module 1120. The sending module 1120 is configured to send second information to the first device, where the second information is used by the first device to determine the first solution.

[0126] In some implementations, the second information is used to indicate one or more of the following: information used to determine some or all of the usage conditions among multiple usage conditions; and an association relationship between some or all of the usage conditions and some or all of the multiple solutions.

[0127] In some implementations, the first scheme includes one or more of the following: a signal modulation scheme based on a model; a signal modulation scheme based on a predefined modulation constellation; a modulation constellation generated based on a model.

[0128] In some implementations, the model-based signal modulation scheme includes one or more of the following: a first model-based signal modulation scheme, the first signal modulation scheme is used to modulate data on a single transmission layer, and the dimension of the first signal modulation scheme is two-dimensional; a second model-based signal modulation scheme, the second signal modulation scheme is used to jointly modulate data streams on multiple transmission layers, and the dimension of the second signal modulation scheme is 2N, where N is the number of transmission layers.

[0129] In some implementations, the first device is a terminal device, and the second device is a network device; or, the first device is a network device, and the second device is a terminal device.

[0130] Figure 12 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The dashed lines in Figure 12 indicate that the unit or module is optional. Apparatus 1200 may be used to implement the method described in the above method embodiment. Apparatus 1200 may be a chip, a terminal device, or a network device.

[0131] The device 1200 may include one or more processors 1210. The processor 1210 may support the device 1200 to implement the method described in the above method embodiment. The processor 1210 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0132] The apparatus 1200 may further include one or more memories 1220. The memories 1220 store programs that can be executed by the processor 1210, causing the processor 1210 to perform the methods described in the above method embodiments. The memories 1220 may be independent of the processor 1210 or integrated into the processor 1210.

[0133] The apparatus 1200 may further include a transceiver 1230. The processor 1210 may communicate with other devices or chips via the transceiver 1230. For example, the processor 1210 may transmit and receive data with other devices or chips via the transceiver 1230.

[0134] The present invention also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present invention, and the program enables a computer to execute the method in each embodiment of the present invention.

[0135] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided in the present application, and the program enables the computer to execute the method in each embodiment of the present application.

[0136] The present application also provides a computer program that can be applied to a terminal or network device provided in the present application, and enables a computer to execute the methods in the various embodiments of the present application.

[0137] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0138] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0139] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0140] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0141] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0142] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0143] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0144] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0145] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0146] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0147] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0148] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0149] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0150] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for wireless communication, characterized in that, Including: If the usage conditions of the first scheme are met, the first device performs signal modulation or signal demodulation according to the first scheme, where the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

2. The method according to claim 1, wherein The usage conditions of the first scheme are associated with one or more of the following information: The moving speed of the terminal device; Channel measurement information; Information related to CSI feedback of channel state information; Channel energy; Channel quality; Operating frequency band; Operating bandwidth; Information related to phase noise; The type of power amplifier; The capabilities of the terminal device.

3. The method according to claim 2, wherein The channel measurement information includes the configuration information of the reference signal for channel measurement.

4. The method according to claim 2 or 3, characterized in that, The information related to CSI feedback includes the configuration information for CSI feedback.

5. The method according to any one of claims 2 to 4, characterized in that, The information related to phase noise includes the configuration information of the phase tracking reference signal (PTRS).

6. The method according to any one of claims 1 to 5, characterized in that The method further includes: The first device sends first information to the second device, and the first information is used to indicate the first scheme.

7. The method according to claim 6, characterized in that, The first information includes one or more of the following: The identifier of the first scheme; The first scheme.

8. The method according to any one of claims 1 to 7, characterized in that, Before the first device performs signal modulation or signal demodulation according to the first scheme, the method further includes: The first device receives second information sent by the second device, and the second information is used for the first device to determine the first scheme.

9. The method according to claim 8, wherein The second information is used to indicate one or more of the following: Information for determining some or all of the usage conditions among the multiple usage conditions; The association relationship between the some or all of the usage conditions and some or all of the multiple schemes.

10. The method according to any one of claims 1 to 9, characterized in that, The first scheme includes one or more of the following: A signal modulation scheme based on a model; A signal modulation scheme based on a predefined modulation constellation; A modulation constellation generated based on a model.

11. The method according to claim 10, characterized in that, The signal modulation scheme based on a model includes one or more of the following: A first signal modulation scheme based on a model, which is used to modulate data on a single transport layer, and the dimension of the first signal modulation scheme is two-dimensional; A second signal modulation scheme based on a model, which is used to jointly modulate data streams on multiple transport layers, and the dimension of the second signal modulation scheme is 2N, where N is the number of transport layers.

12. The method according to any one of claims 1 to 11, wherein: The first device is a terminal device and the second device is a network device; or, The first device is a network device and the second device is a terminal device.

13. A method for wireless communication, characterized in that, Including: The first device receives first information sent by the second device, and the first information is used to indicate the first scheme; The first device performs signal modulation or signal demodulation according to the first scheme; wherein the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

14. The method according to claim 13, characterized in that, The usage conditions of the first scheme are associated with one or more of the following information: The moving speed of the terminal device; Channel measurement information; Information related to CSI feedback of channel state information; Channel energy; Channel quality; Operating frequency band; Operating bandwidth; Phase noise related information; Type of power amplifier; Capability of the terminal device.

15. The method according to claim 14, wherein The channel measurement information includes configuration information of a reference signal for channel measurement.

16. The method according to claim 14 or 15, characterized in that The CSI feedback related information includes configuration information for CSI feedback.

17. The method according to any one of claims 14 to 16, characterized in that, The phase noise related information includes configuration information of a phase tracking reference signal (PTRS).

18. The method according to any one of claims 13 to 17, characterized in that The first information includes one or more of the following: Identity of the first scheme; The first scheme.

19. The method according to any one of claims 13 to 18, characterized in that, Before the first device receives the first information sent by the second device, the method further includes: The first device sends second information to the second device, and the second information is used for the second device to determine the first scheme.

20. The method according to claim 19, wherein The second information is used to indicate one or more of the following: Information for determining some or all of the multiple usage conditions; The association relationship between some or all of the multiple usage conditions and some or all of the multiple schemes.

21. The method according to any one of claims 13 to 20, characterized in that The first scheme includes one or more of the following: A model-based signal modulation scheme; A signal modulation scheme based on a predefined modulation constellation diagram; A modulation constellation diagram generated based on a model.

22. The method according to claim 21, characterized in that, The model-based signal modulation scheme includes one or more of the following: A first model-based signal modulation scheme for modulating data on a single transmission layer, and the dimension of the first signal modulation scheme is two-dimensional; A second model-based signal modulation scheme for jointly modulating data streams on multiple transmission layers, and the dimension of the second signal modulation scheme is 2N, where N is the number of transmission layers.

23. The method according to any one of claims 13 to 22, characterized in that: The first device is a terminal device and the second device is a network device; or, The first device is a network device and the second device is a terminal device.

24. A communication device, characterized in that, The communication device is the first device, and the communication device includes: A modulation / demodulation module for performing signal modulation or signal demodulation according to the first scheme when the usage conditions of the first scheme are met, where the first scheme is one of multiple schemes for signal modulation or signal demodulation, and the multiple schemes are respectively associated with multiple usage conditions.

25. The communication device according to claim 24, characterized in that, The usage conditions of the first scheme are associated with one or more of the following information: The moving speed of the terminal device; Channel measurement information; Channel state information (CSI) feedback related information; Channel energy; Channel quality; Operating frequency band; Operating bandwidth; Phase noise related information; Type of power amplifier; Capability of the terminal device.

26. The communication device according to claim 25, wherein The channel measurement information includes configuration information of a reference signal for channel measurement.

27. The communication device according to claim 25 or 26, characterized in that, The CSI feedback related information includes configuration information for CSI feedback.

28. The communication device according to any one of claims 25 to 27, characterized in that, The phase noise related information includes configuration information of a phase tracking reference signal (PTRS).

29. The communication device according to any one of claims 24 to 28, characterized in that, The communication device further includes: A sending module for sending first information to the second device, and the first information is used to indicate the first scheme.

30. The communication device according to claim 29, wherein, The first information includes one or more of the following: Identity of the first scheme; The first scheme.

31. The communication device according to any one of claims 24 to 30, characterized in that, The communication device further includes: A receiving module, configured to receive second information sent by a second device, where the second information is used by the first device to determine the first solution.

32. The communication device according to claim 31, characterized in that, The second information is used to indicate one or more of the following: Information for determining some or all of the multiple usage conditions; The association relationship between some or all of the usage conditions and some or all of the multiple solutions.

33. The communication device according to any one of claims 24 to 32, characterized in that, The first solution includes one or more of the following: A signal modulation solution based on a model; A signal modulation solution based on a predefined modulation constellation diagram; A modulation constellation diagram generated based on a model.

34. The communication device according to claim 33, characterized in that, The signal modulation solution based on a model includes one or more of the following: A first signal modulation solution based on a model, where the first signal modulation solution is used to modulate data on a single transport layer, and the dimension of the first signal modulation solution is two-dimensional; A second signal modulation solution based on a model, where the second signal modulation solution is used to jointly modulate data streams on multiple transport layers, and the dimension of the second signal modulation solution is 2N, where N is the number of transport layers.

35. The communication device according to any one of claims 24 to 34, characterized in that: The first device is a terminal device and the second device is a network device; or, The first device is a network device and the second device is a terminal device.

36. A communication device, characterized in that, The communication device is the second device, and the communication device includes: A receiving module, configured to receive first information sent by a first device, where the first information is used to indicate a first solution; A modulation / demodulation module, configured to perform signal modulation or signal demodulation according to the first solution; Wherein, the first solution is one of multiple solutions for signal modulation or signal demodulation, and the multiple solutions are respectively associated with multiple usage conditions.

37. The communication device according to claim 36, characterized in that, The usage conditions of the first solution are associated with one or more of the following information: The moving speed of the terminal device; Channel measurement information; Information related to CSI feedback of channel state information; Channel energy; Channel quality; Operating frequency band; Operating bandwidth; Information related to phase noise; The type of power amplifier; The capabilities of the terminal device.

38. The communication device according to claim 37, wherein, The channel measurement information includes configuration information of a reference signal for channel measurement.

39. The communication device according to claim 37 or 38, characterized in that, The information related to CSI feedback includes configuration information for CSI feedback.

40. The communication device according to any one of claims 37 to 39, characterized in that The information related to phase noise includes configuration information of a phase tracking reference signal (PTRS).

41. The communication device according to any one of claims 36 to 40, characterized in that, The first information includes one or more of the following: The identifier of the first solution; The first solution.

42. The communication device according to any one of claims 36 to 41, characterized in that, The communication device further includes: A sending module, configured to send second information to the first device, where the second information is used by the first device to determine the first solution.

43. The communication device according to claim 42, characterized in that, The second information is used to indicate one or more of the following: Information for determining some or all of the multiple usage conditions; The association relationship between some or all of the usage conditions and some or all of the multiple solutions.

44. The communication device according to any one of claims 36 to 43, characterized in that, The first solution includes one or more of the following: A signal modulation solution based on a model; A signal modulation solution based on a predefined modulation constellation diagram; A modulation constellation diagram generated based on a model.

45. The communication device according to claim 44, characterized in that, The model-based signal modulation scheme includes one or more of the following: A first model-based signal modulation scheme for modulating data on a single transport layer, where the dimension of the first signal modulation scheme is two-dimensional; A second model-based signal modulation scheme for jointly modulating data streams on multiple transport layers, where the dimension of the second signal modulation scheme is 2N, and N is the number of transport layers.

46. The communication device according to any one of claims 36 to 45, wherein: The first device is a terminal device and the second device is a network device; or The first device is a network device and the second device is a terminal device.

47. A communication device, characterized in that, The communication device is the first device, which includes a memory and a processor. The memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals, so that the first device executes the method according to any one of claims 1-12.

48. A communication device, characterized in that, The communication device is the second device, which includes a transceiver, a memory and a processor. The memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals, so that the second device executes the method according to any one of claims 13-23.

49. A device, characterized in that, It includes a processor for calling a program from a memory, so that the device executes the method according to any one of claims 1-12 or 13-23.

50. A chip, characterized in that, It includes a processor for calling a program from a memory, so that the device installed with the chip executes the method according to any one of claims 1-12 or 13-23.

51. A computer-readable storage medium, characterized in that, A program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-12 or 13-23.

52. A computer program product, characterized in that, It includes a program, and the program causes a computer to execute the method according to any one of claims 1-12 or 13-23.

53. A computer program, characterized in that, The computer program causes a computer to execute the method according to any one of claims 1-12 or 13-23.

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