Wireless communication method and device

Abstract

The embodiment of the invention provides a wireless communication method and device, and the method enables the modulation depth between a high-level signal and a low-level signal in a target signal to meet a demodulation demand through optimizing a modulation mode and / or a constellation point associated with a subcarrier bearing the high-level signal and the low-level signal in the target signal. And the detection performance of the target signal is improved. The wireless communication method comprises the following steps: a first communication device receives a target signal; wherein the target signal is a signal carrying information through signal amplitude, the target signal comprises a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; wherein the subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is an empty subcarrier.

Description

Wireless communication method and device Technical Field

[0001] The present invention relates to the field of communications, and more specifically, to a method and device for wireless communications. Background Art

[0002] In New Radio (NR) systems, extremely low-power and low-complexity receivers are introduced to receive signals that carry information via amplitude, such as wake-up signals (WUS). However, to correctly demodulate amplitude-carrying signals, higher requirements are placed on the modulation depth between the high and low levels of the amplitude-carrying signals.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a method and device for wireless communication, which optimizes the modulation mode and / or constellation points associated with the subcarriers carrying high-level signals and low-level signals in the target signal, so that the modulation depth between the high-level and low-level signals in the target signal meets the demodulation requirements, thereby improving the detection performance of the target signal.

[0005] In a first aspect, a wireless communication method is provided, the method comprising:

[0006] The first communication device receives a target signal;

[0007] The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level;

[0008] The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

[0009] In a second aspect, a wireless communication method is provided, the method comprising:

[0010] The second communication device sends a target signal;

[0011] The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level;

[0012] The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

[0013] In a third aspect, a communication device is provided for executing the method in the first aspect.

[0014] Specifically, the communication device includes a functional module for executing the method in the above-mentioned first aspect.

[0015] In a fourth aspect, a communication device is provided for executing the method in the second aspect.

[0016] Specifically, the communication device includes a functional module for executing the method in the above-mentioned second aspect.

[0017] In a fifth aspect, a communication device is provided, comprising a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method in the above-mentioned first aspect.

[0018] In a sixth aspect, a communication device is provided, comprising a processor and a memory; the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the communication device executes the method in the above-mentioned second aspect.

[0019] In a seventh aspect, a device is provided for implementing the method in any one of the first to second aspects above.

[0020] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to second aspects described above.

[0021] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to second aspects above.

[0022] In a ninth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to second aspects above.

[0023] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to second aspects above.

[0024] Through the above technical solution, by optimizing the modulation mode and / or constellation points associated with the subcarriers carrying the high-level signal and the low-level signal in the target signal, the modulation depth between the high-level and low-level signals in the target signal meets the demodulation requirements, thereby improving the detection performance of the target signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0026] FIG2 is a diagram of a receiver system based on zero-power wake-up provided by the present application.

[0027] Figure 3 is a schematic diagram of a WUR PPDU frame provided by this application.

[0028] Figure 4 is a schematic diagram of WUR data OOK modulation provided by this application.

[0029] FIG5 is a schematic diagram of an MC-OOK signal generated by multi-carrier modulation provided by the present application.

[0030] FIG6 is a schematic diagram of a zero-power communication system provided by the present application.

[0031] FIG7 is a schematic diagram of a backscatter communication principle provided by the present application.

[0032] FIG8 is a schematic diagram of an energy harvesting principle provided by this application.

[0033] FIG9 is a circuit diagram of a resistive load modulation provided by the present application.

[0034] FIG10 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0035] FIG11 is a schematic diagram of a WUS signal and data signal mapping provided according to an embodiment of the present application.

[0036] FIG12 is a schematic diagram of a modulation depth provided according to an embodiment of the present application.

[0037] FIG13 is a schematic diagram of a constellation point region A and a constellation point region B provided according to an embodiment of the present application.

[0038] FIG14 is a schematic diagram of an on signal and an off signal provided according to an embodiment of the present application.

[0039] FIG15 is a schematic diagram of a constellation point with a relatively large amplitude value under 256QAM provided according to an embodiment of the present application.

[0040] FIG16 is a schematic diagram of a constellation point with a relatively large amplitude value under QPSK provided according to an embodiment of the present application.

[0041] Figure 17 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0042] Figure 18 is a schematic block diagram of another communication device provided according to an embodiment of the present application.

[0043] Figure 19 is a schematic block diagram of another communication device provided according to an embodiment of the present application.

[0044] Figure 20 is a schematic block diagram of a device provided according to an embodiment of the present application.

[0045] Figure 21 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Internet of Things (IoT), Wireless Fidelity (WFI) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, sixth-generation communication (6G) system or other communication systems.

[0048] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, sidelink (SL) communication, vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0049] In some embodiments, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, an independent (SA) networking scenario, or a non-standalone (NSA) networking scenario.

[0050] In some embodiments, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiments of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0051] In some embodiments, the communication system in the embodiments of the present application can be applied to the FR1 frequency band (corresponding to the frequency band range of 410MHz to 7.125GHz), can also be applied to the FR2 frequency band (corresponding to the frequency band range of 24.25GHz to 52.6GHz), and can also be applied to new frequency bands such as high-frequency bands corresponding to the frequency band range of 52.6GHz to 71GHz or the frequency band range of 71GHz to 114.25GHz.

[0052] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0053] The terminal device can be a station (ST) in a WLAN, 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 wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0054] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0055] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city or a wireless terminal device in a smart home, an in-vehicle communication device, a wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SoC), etc.

[0056] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0057] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a network device or base station (gNB) or a transmission reception point (TRP) in a vehicle-mounted device, a wearable device, and an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0058] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station set up in a location such as land or water.

[0059] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0060] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0061] FIG1 exemplarily shows a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0062] In some embodiments, the 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 embodiments of the present application.

[0063] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0064] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0065] It should be understood that this document relates to a first communication device and a second communication device. The first communication device can be a terminal device, such as a mobile phone, machine facilities, customer premises equipment (CPE), industrial equipment, vehicles, etc.; the second communication device can be a peer communication device of the first communication device, such as a network device, mobile phone, industrial equipment, vehicles, etc. In the embodiments of the present application, the first communication device can be a terminal device, and the second communication device can be a network device (i.e., uplink communication or downlink communication); alternatively, the first communication device can be a first terminal, and the second communication device can be a second terminal (i.e., sideline communication).

[0066] The terms used in the embodiments of this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth," etc. in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, not to describe a specific order. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0067] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0068] In the description of 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 being indicated, configuration and being configured, etc.

[0069] 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.

[0070] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may be an evolution of an existing LTE protocol, NR protocol, Wi-Fi protocol, or a protocol related to other communication systems. The present application does not limit the protocol type.

[0071] To facilitate a better understanding of the embodiments of the present application, the terminal energy saving based on waking up the receiver related to the present application is explained.

[0072] To further conserve power in terminal equipment (UE), a wake-up receiver (Wake-up receiver) is introduced to receive a wake-up signal (WUS). This wake-up receiver features extremely low cost, low complexity, and extremely low power consumption. It primarily receives the WUS through envelope detection. Therefore, the WUS received by the wake-up receiver differs from the modulation scheme and waveform of the signal carried by the Physical Downlink Control Channel (PDCCH). The wake-up signal primarily consists of an envelope signal modulated by amplitude shift keying (ASK) on a carrier signal. Demodulation of the envelope signal is also primarily accomplished by driving a low-power circuit using energy provided by the wireless RF signal, making it passive. The wake-up receiver can also be powered by the UE. Regardless of the power supply method, it significantly reduces power consumption compared to traditional UE receivers. The wake-up receiver can be integrated with the UE as an additional module, or it can function as a standalone wake-up module for the UE.

[0073] For example, a block diagram of a receiver system based on zero-power wake-up can be shown in Figure 2. The wake-up receiver receives a wake-up signal. If the UE needs to turn on the main receiver, the UE can be instructed to turn on the main receiver. Otherwise, the main receiver of the UE can be in a closed state or a power-off state. It should be noted that the wake-up receiver can also be referred to as a zero-power receiver or a low-power receiver, and the main receiver can also be referred to as a main transceiver. This embodiment of the present application is not limited to this.

[0074] To facilitate a better understanding of the embodiments of the present application, the wake-up signal in the WiFi communication related to the present application is explained.

[0075] Wake-up radio (WUR) signals are used in WiFi communications to achieve energy saving of devices. The WUR access point (AP) notifies the WUR station (STA) of energy saving operations through the WUR wake-up frame. The wake-up frame is carried in the WUR physical layer protocol data unit (PPDU) frame. A WUR PPDU frame contains three parts: the legacy preamble, WUR synchronization (WUR-Sync) and WUR data (WUR-Data). The legacy preamble is used to protect the WUR-Sync and WUR-Data parts. It is a non-WUR part retained for compatibility reasons. It uses traditional orthogonal frequency-division multiplexing (OFDM) modulation and 20MHz bandwidth. WUR-Sync is used to help identify and demodulate the WUR-data part. The WUR-Data part is used to carry the WUR physical layer service data unit (PSDU), as shown in Figure 3.

[0076] The WUR-Sync and WUR-data sections use on-off keying (OOK) modulation and 4MHz. OOK modulation modulates the carrier signal's amplitude to non-zero and zero values, corresponding to on and off, respectively, to represent information bits. OOK is also known as binary amplitude shift keying (2ASK). As shown in Figure 4, the WUR-Sync section carries a synchronization sequence repeated twice, with bits 1 modulated as on and bits 0 as off.

[0077] It should be noted that the above-mentioned OOK signal is generated through multi-carrier (MC), so it is called MC-OOK signal. The generation of MC-OOK signal can adopt multi-carrier modulation such as OFDM modulation to generate OOK signal, which can maintain good compatibility with OFDM system and reduce the transmitter complexity introduced by implementing WUR signal. Figure 5 is a schematic diagram of MC-OOK signal generated by multi-carrier modulation. By mapping the corresponding amplitude values ​​to multiple subcarriers in the frequency domain, the waveform of the time domain signal converted by the inverse discrete Fourier transform (IDFT) is similar to the waveform formed by ASK modulation, where bit 1 is represented by the high level of the signal and bit 0 is represented by the low level of the signal.

[0078] In order to facilitate a better understanding of the embodiments of the present application, the zero-power consumption devices related to the present application are described.

[0079] In recent years, the application of zero-power devices has become increasingly widespread. A typical zero-power device is radio frequency identification (RFID), a technology that uses spatial coupling of radio frequency signals to achieve contactless automatic transmission and identification of tag information. RFID tags, also known as "radio frequency tags" or "electronic tags," can be categorized into active, passive, and semi-passive electronic tags based on their power supply method. Active electronic tags, also known as active tags, are powered by a battery. The battery, memory, and antenna together form an active electronic tag. Unlike passive RF activation, active tags transmit information over a set frequency band until the battery is replaced. Passive electronic tags, also known as passive electronic tags, do not support internal batteries. When a passive electronic tag is close to a reader, it is within the near field formed by the reader's antenna radiation. The tag antenna generates an induced current through electromagnetic induction, which drives the tag's chip circuit. The chip circuit transmits the identification information stored in the tag to the reader via the tag antenna. Semi-active electronic tags inherit the advantages of passive electronic tags, such as small size, light weight, low price and long service life. When there is no reader access, the built-in battery only provides power for a small number of circuits in the chip. Only when the reader accesses, the built-in battery supplies power to the RFID chip to increase the reading and writing distance of the tag and improve the reliability of communication.

[0080] RFID is a wireless communication technology. The most basic RFID system consists of two parts: an electronic tag (TAG) and a reader / writer. The tag consists of a coupling component and a chip. Each tag has a unique electronic code and is placed on the target to mark the object. The reader / writer not only reads the information on the tag, but also writes to it and provides the energy needed for communication. As shown in Figure 6, after the tag enters an electromagnetic field, it receives the radio frequency signal emitted by the reader / writer. Passive or passive tags use the energy generated by the electromagnetic field to transmit the information stored on the tag. The reader / writer reads the information and decodes it, thereby identifying the tag.

[0081] Key technologies for zero-power communication include energy harvesting, backscatter communication, and low-power computing. As shown in Figure 6, a typical zero-power communication system consists of a reader and a zero-power terminal. The reader transmits radio waves to provide energy to the zero-power terminal. An energy harvesting module installed in the zero-power terminal collects energy from radio waves in space (Figure 6 shows the radio waves emitted by the reader), which is used to drive the zero-power terminal's low-power computing module and implement backscatter communication. After harvesting energy, the zero-power terminal receives control commands from the reader and transmits data to the reader via backscatter based on control signaling. This data can be stored in the zero-power terminal itself (such as an identity tag or pre-programmed information, such as the product's production date, brand, and manufacturer). The zero-power terminal can also be equipped with various sensors, which can then report data collected by these sensors using a zero-power mechanism.

[0082] To facilitate a better understanding of the embodiments of the present application, backscattering communication related to the present application is described.

[0083] As shown in Figure 7, the zero-power device (the backscatter tag in Figure 7) receives the carrier signal sent by the backscatter reader and collects energy through the radio frequency (RF) energy harvesting module. The low-power processing module (the logic processing module in Figure 7) then modulates the incoming signal and performs backscattering.

[0084] The main features of backscatter communication are as follows:

[0085] (1) The terminal does not actively transmit signals, but achieves backscatter communication by modulating the incoming signal;

[0086] (2) The terminal does not rely on traditional active power amplifier transmitters and uses low-power computing units, greatly reducing hardware complexity;

[0087] (3) Combined with energy harvesting, battery-free communication can be achieved.

[0088] To facilitate a better understanding of the embodiments of the present application, the RF energy harvesting (Power Harvesting) related to the present application is explained.

[0089] As shown in FIG8 , the RF module is used to collect electromagnetic wave energy in space through electromagnetic induction, and then drive the load circuit (low-power computing, sensor, etc.), which can achieve battery-free operation.

[0090] To facilitate a better understanding of the embodiments of the present application, the load modulation related to the present application is explained.

[0091] Load modulation is a common method used by electronic tags to transmit data to readers. Load modulation achieves this by adjusting the electrical parameters of the tag's oscillating circuit according to the data stream's rhythm, causing the tag's impedance and phase to change accordingly. There are two main types of load modulation: resistive load modulation and capacitive load modulation. In resistive load modulation, a resistor, called the load modulation resistor, is connected in parallel with the load. This resistor is switched on and off according to the data stream's clock, while the on and off of switch S is controlled by binary data encoding. The circuit schematic for resistive load modulation is shown in Figure 9.

[0092] In capacitive load modulation, a capacitor is connected in parallel with the load, replacing the load modulation resistor controlled by binary data encoding in Figure 9.

[0093] To facilitate a better understanding of the embodiments of the present application, the encoding technology related to the present application is explained.

[0094] The data transmitted by electronic tags can be represented by various codes to represent binary "1" and "0." RFID systems typically use one of the following encoding methods: non-return-to-zero (NRZ), Manchester, unipolar return-to-zero (Unipolar RZ), differential bi-phase (DBP), Miller, or differential encoding. In simple terms, different pulse signals are used to represent 0 and 1.

[0095] To facilitate a better understanding of the embodiments of the present application, the energy supply signal in the zero-power communication system related to the present application is explained.

[0096] From the perspective of energy supply signal carriers, it can be base stations, smart phones, smart gateways, charging stations, micro base stations, etc.

[0097] In terms of frequency band, the radio waves used for energy supply can be low frequency, medium frequency, high frequency, etc.

[0098] From the waveform, the radio wave used for power supply can be a sine wave, square wave, triangle wave, pulse, rectangular wave, etc. In addition, the radio wave used for power supply can be a continuous wave or a discontinuous wave (i.e., a certain time interruption is allowed).

[0099] The power supply signal may be a signal specified in the 3rd Generation Partnership Project (3GPP) standard, such as the Sounding Reference Signal (SRS), Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Broadcast Channel (PBCH), etc.

[0100] To facilitate a better understanding of the embodiments of the present application, the trigger signal in the zero-power communication system related to the present application is explained.

[0101] From the perspective of trigger signal carrier, it can be a base station, smart phone, smart gateway, etc.

[0102] In terms of frequency band, the radio waves used as triggers can be low frequency, medium frequency, high frequency, etc.

[0103] From the waveform, the radio wave used as a trigger can be a sine wave, square wave, triangle wave, pulse, rectangular wave, etc. In addition, the radio wave used as a trigger can be a continuous wave or a discontinuous wave (that is, a certain time interruption is allowed).

[0104] The trigger signal may be a signal specified in the 3GPP standard, such as SRS, PUSCH, PRACH, PUCCH, PDCCH, PDSCH, PBCH, etc.; or it may be a new signal.

[0105] In order to facilitate a better understanding of the embodiments of the present application, the cellular passive Internet of Things related to the present application is explained.

[0106] As 5G industry applications expand, the types of connected objects and application scenarios will increase, placing higher demands on the price and power consumption of communication terminals. The application of battery-free, low-cost passive IoT devices has become a key technology for cellular IoT, expanding the types and number of terminals connected to 5G networks and truly realizing the interconnection of everything. Passive IoT devices can be based on existing zero-power devices, such as RFID technology, and can be extended to suit cellular IoT.

[0107] In order to facilitate a better understanding of the embodiments of the present application, the problems solved by the present application are explained.

[0108] Receivers with extremely low power consumption and complexity are used to save power or reduce the complexity and cost of terminals, such as the wake-up radio (WUR) in WiFi technology and the wake-up receiver in NR technology, as well as future zero-power communications. In order to be compatible with existing systems and make full use of resources, taking the NR system as an example, when the wake-up receiver used by the terminal receives the wake-up signal (WUS), the WUS signal sent by the network device is expected to be compatible with the existing orthogonal frequency-division multiplexing (OFDM) transmitter, and it is expected to be multiplexed with the existing NR signal within the frequency band, rather than using a separate frequency band resource for the transmission of the WUS signal. The WUS signal is generally received using envelope detection. Envelope detection requires a sufficient power difference between the high level and the low level in order to correctly demodulate the high and low levels. In the NR system, when the WUS is multiplexed with other NR signals, how to send the WUS signal to meet the envelope detection requirements is a problem that needs to be solved.

[0109] Based on the above problems, the present application proposes a signal transmission solution, which optimizes the modulation mode and / or constellation points associated with the subcarriers carrying the high-level signals and low-level signals in the target signal, so that the modulation depth between the high-level and low-level signals in the target signal meets the demodulation requirements, thereby improving the detection performance of the target signal.

[0110] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0111] FIG10 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG10 , the wireless communication method 200 may include at least part of the following contents:

[0112] S210. The second communication device sends a target signal; wherein the target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; wherein a subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, and a subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier;

[0113] S220: The first communication device receives the target signal.

[0114] In an embodiment of the present application, by optimizing the modulation mode and / or constellation point associated with the subcarriers carrying the high-level signal and the low-level signal in the target signal, the modulation depth between the high-level and low-level signals in the target signal meets the demodulation requirements, thereby improving the detection performance of the target signal.

[0115] In the embodiment of the present application, the first signal may be the high-level portion of the target signal, and the amplitude value of the first signal may be a specific value or a value within a value range. The second signal may be the low-level portion of the target signal, and the amplitude value of the second signal may be a specific value or a value within a value range.

[0116] In some embodiments, the difference between the amplitude of the first signal and the amplitude of the second signal is greater than a first threshold, and / or the ratio of the amplitude of the first signal to the amplitude of the second signal is greater than a second threshold, so that the modulation depth between the high and low level signals in the target signal meets the demodulation requirements.

[0117] In some embodiments, the first threshold is agreed upon by a protocol, or the first threshold is configured by a network device.

[0118] In some embodiments, the second threshold is agreed upon by a protocol, or the second threshold is configured by a network device.

[0119] In some embodiments, the first communication device is a terminal device or a network device, wherein the first communication device includes a special receiver, such as a wake-up receiver or a low-power receiver, which can demodulate the target signal.

[0120] In some embodiments, the first communication device may be a zero-power device, which may demodulate the target signal. Optionally, the first communication device may obtain energy through energy harvesting for communication, information collection, and processing. That is, before the second communication device communicates with the first communication device, it must first ensure that the first communication device receives radio waves for wireless power supply and obtains wireless energy through energy harvesting. In other words, the embodiments of the present application may be applied to zero-power communication technology. Optionally, the target signal may be a power supply signal for the first communication device.

[0121] It should be understood that the present application does not limit the specific method in which the first communication device obtains energy through energy harvesting. As an example and not a limitation, the first communication device can obtain energy through wireless power supply methods such as wireless radio frequency signals, solar energy, pressure or temperature.

[0122] It should be noted that zero-power devices are a general term for devices with extremely low complexity and extremely low power consumption. Such devices do not rely on batteries, and the energy required for their operation comes from the environment, and they can have energy collection and storage capabilities. The communication of zero-power devices can support simple modulation and demodulation methods, such as Amplitude Shift Keying (ASK) / Frequency Shift Keying (FSK), etc. Specifically, zero-power devices can refer to ambient power enabled (AMP) devices introduced in the 3rd Generation Partnership Project (3GPP) and WiFi technology, or they can be a communication module of an existing device, such as the wake-up radio (WUR) functional module introduced in WiFi technology and the wake-up receiver (Wake up receiver) of terminal devices introduced by 3GPP.

[0123] Specifically, the energy of the AMP device comes from the environment. Depending on the type of the AMP device, some AMP devices may have active transmission capabilities instead of relying solely on backscatter.

[0124] In some embodiments, the second communication device is a device for communicating with the first communication device. Optionally, the second communication device may be a network device, or the second communication device may be a terminal device, or the second communication device may be a power supply node.

[0125] In some embodiments, the target signal is a signal generated based on multi-carrier modulation.

[0126] In some embodiments, the target signal may also be a signal received using envelope detection. That is, in the embodiments of the present application, the target signal is a signal that carries information through signal amplitude, or the target signal is a signal received using envelope detection.

[0127] In some embodiments, the target signal is a WUS signal. Of course, the target signal may also be other signals, or signals for transmitting data, which is not limited in the embodiments of the present application. Optionally, the WUS signal is an on-off keying (OOK) signal or a multi-carrier on-off keying (MC-OOK) signal. For example, in zero-power communication, IoT devices with extremely low power consumption and complexity, such as AMP IoT devices, receive signals mainly based on ASK modulation, such as OOK signals. The signals received by such devices are not only WUS signals for wake-up, but also signals for transmitting user data.

[0128] The embodiments of the present application are not limited to the generation of WUS signals in NR systems, but are also applicable to the generation of wake-up radio (WUR) signals in other communication systems such as WiFi that use multi-carrier modulation air interface technology.

[0129] The OOK signal is used as an example to illustrate signals received using envelope detection. Other modulation methods, such as ASK and FSK, can also be used. Essentially, these require envelope detection at the receiving end to detect the high and low levels of the signal for demodulation. Accordingly, the "on" signal in the OOK signal corresponds to a high-level signal, and the "off" signal corresponds to a low-level signal.

[0130] In some embodiments, the target signal is a WUS signal, specifically an OOK signal or a MC-OOK signal, wherein the first signal is an on signal and the second signal is an off signal.

[0131] In some embodiments, a receiver that detects a target signal by means of envelope detection has low complexity and power consumption. The receiver can demodulate the target signal modulated by ASK, OOK, or FSK by means of envelope detection. Taking the MC-OOK signal as an example, by setting a certain non-zero amplitude for multiple subcarriers, a corresponding on time domain waveform can be generated after the IDFT transformation of the transmitter. Without assigning a value to the corresponding subcarrier, a corresponding off time domain waveform can be generated, thereby realizing OOK modulation based on multi-carriers. For example, the WUR signal in WiFi technology uses 13 subcarriers at the center of a 64-point IDFT within a 20MHz bandwidth to generate an on waveform. For a 2μs symbol length, 6 subcarriers with subcarrier index k = (–6, –4, –2, 2, 4, 6) among the 13 subcarriers are assigned non-zero values, and the other subcarriers are not assigned values. For a 4 μs symbol length, 12 subcarriers with subcarrier index k = (–6, –5, … –1, 1, 2, … 6) among the 13 subcarriers are assigned non-zero values, and the other subcarriers are not assigned values.

[0132] In some embodiments, the target signal can be multiplexed within the frequency band with the signal in the NR system. As shown in Figure 11, the WUS signal and the data signal are mapped to different subcarriers and processed and transmitted by the OFDM transmitter.

[0133] In some embodiments, the amplitudes of the on and off signals of the OOK signal generated by multi-carrier must reach a certain modulation depth for correct demodulation at the receiving end, as shown in Figure 12. For example, in the MC-OOK signal used in WiFi technology, the ratio of the average power of the on symbol to the average power of the off symbol must be at least 20 decibels (dB).

[0134] In some embodiments, when generating a first signal (such as an On signal), the assignment of the subcarrier carrying the signal needs to satisfy the requirement that the amplitude of the generated time domain signal meets the modulation depth requirement, and the amplitude of the signal within the symbol is as flat as possible. Accordingly, the amplitude of the second signal (such as an Off signal) is as low as possible compared to the symbol of the first signal (such as an On signal) to meet the modulation depth requirement. Taking 256 Quadrature Amplitude Modulation (QAM) modulation as an example, the above requirements are met by mapping different constellation points on the subcarrier. As shown in Figure 13, the constellation point with a larger amplitude (i.e., the constellation point in area A) is mapped to the subcarrier to generate the first signal (such as the On signal, WUS "1"), and the constellation point with a smaller amplitude (i.e., the constellation point in area B) is mapped to the subcarrier to generate the second signal (such as the Off signal, WUS "0").

[0135] In some embodiments, for the second signal (e.g., an Off signal), the corresponding subcarriers can be set as null subcarriers. That is, the subcarriers carrying the second signal (e.g., an Off signal) are null subcarriers. In other words, in the symbols where the second signal (e.g., an Off signal) is located, the modulation symbols mapped to the corresponding subcarriers only need to ensure that the time domain waveform meets the low level. In the case of these subcarriers carrying the second signal (e.g., an Off signal), no modulation symbols may even be mapped.

[0136] In some embodiments, the target signal is a WUS signal, such as an MC-OOK signal, which generates an equivalent amplitude modulated signal in the time domain by mapping modulation symbols to corresponding subcarriers. Specifically, a first level (i.e., a high level) is used to represent a first signal (e.g., an on signal) and is used to carry bit 1; a second level (i.e., a low level) is used to represent a second signal (e.g., an off signal) and is used to carry bit 0, as shown in FIG14 .

[0137] To generate the first signal (e.g., the on signal), the modulation symbols mapped to the subcarriers carrying the WUS signal have high amplitudes, such as the constellation points in region A of the 256QAM modulation constellation in Figure 13. To ensure that the generated time-domain waveform meets certain amplitude requirements, the selection of these constellation points is not arbitrary and is often predefined. However, for the second signal (e.g., the off signal), as long as the low level is maintained and the amplitude ratio relative to the high level is met, the low level (i.e., the off signal) can be detected normally in the WUS.

[0138] In order to meet a certain modulation depth, when generating the first signal (such as the on signal), it is necessary to determine which modulation method and which constellation points to use to map to the corresponding subcarriers. Optionally, the modulation method and / or constellation point used by the first signal (such as the on signal) depends on the modulation method and / or constellation point used by the second signal (such as the off signal). In other words, the signal generated by the modulation method and constellation point used by the first signal (such as the on signal) and the second signal (such as the off signal) meets the target modulation depth. To this end, the modulation method and constellation point used by the first signal (such as the on signal) and the second signal (such as the off signal) can be specified respectively.

[0139] For example, taking 256QAM as an example, the method of bit mapping modulation symbols is as follows:

[0140] The bits b(8i), b(8i+1), b(8i+2), b(8i+3), b(8i+4), b(8i+5), b(8i+6), and b(8i+7) are mapped to complex-valued modulation symbols according to the following formula 1, and the constellation point (1,1,1,1,1,1,1,1) has a large amplitude value, as shown in Figure 15.

[0141]

[0142] For example, taking Quadrature Phase Shift Keying (QPSK) as an example, the bits b(2i), b(2i+1) are mapped to complex-valued modulation symbols according to the following formula 2. The constellation points of QPSK are constant amplitude and the amplitude is small, as shown in Figure 16.

[0143]

[0144] In some embodiments, the first modulation scheme and / or the first constellation point are determined based on the second modulation scheme and / or the second constellation point. That is, the modulation scheme and / or the constellation point used by the first signal (e.g., the on signal) depends on the modulation scheme and / or the constellation point used by the second signal (e.g., the off signal).

[0145] In some embodiments, the first modulation mode and / or the first constellation point are agreed upon by a protocol, or are configured or indicated by a network device. For example, the first modulation mode and / or the first constellation point are semi-statically configured or indicated by the network device, or are dynamically configured or indicated by the network device.

[0146] In some embodiments, the second modulation mode and / or the second constellation point are agreed upon by a protocol, or are configured or indicated by a network device. For example, the second modulation mode and / or the second constellation point are semi-statically configured or indicated by the network device, or are dynamically configured or indicated by the network device.

[0147] In some embodiments, the first communication device receives first information;

[0148] The first information is used to configure or indicate at least one first combination, and the first combination is a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal.

[0149] For example, the first communication device receives the first information sent by the second communication device, or the first communication device receives the first information sent by a device other than the second communication device.

[0150] Specifically, after receiving the first information, the first communication device obtains the at least one first combination, and the first communication device can demodulate the target signal based on the at least one first combination.

[0151] In some embodiments, the first information is carried by one of the following:

[0152] Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC CE), Downlink Control Information (DCI), PC5-RRC signaling, Sidelink Control Information (SCI).

[0153] In some embodiments, a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0154] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the second modulation mode belongs to a second modulation mode set; wherein, the modulation modes in the first modulation mode set are agreed upon by a protocol, or, the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or, the modulation modes in the second modulation mode set are agreed upon by a protocol, or, the modulation modes in the second modulation mode set are configured or indicated by a network device.

[0155] In some embodiments, the first constellation point belongs to a first constellation point set, and the second constellation point belongs to a second constellation point set; wherein the constellation points in the first constellation point set are agreed upon by a protocol, or the constellation points in the first constellation point set are configured or indicated by a network device; and / or the constellation points in the second constellation point set are agreed upon by a protocol, or the constellation points in the second constellation point set are configured or indicated by a network device.

[0156] In some embodiments, the combination of modulation modes and constellation points respectively used by the first signal (e.g., the on signal) and the second signal (e.g., the off signal) may include at least one of the following:

[0157] (256QAM, constellation point "11111111") and (QPSK, constellation point "11" or any constellation point);

[0158] (1024QAM, constellation point "1111111111") and (QPSK, constellation point "11" or any constellation point)

[0159] (256QAM, constellation point "11111111") and (Binary Phase Shift Keying (BPSK), constellation point "1" or any constellation point);

[0160] (64QAM, constellation point "111111") and (BPSK, constellation point "1" or any constellation point);

[0161] (64QAM, constellation point "111111") and (QPSK, constellation point "11" or any constellation point);

[0162] (1024QAM, constellation point "1111111111") and (16QAM, constellation point "1111").

[0163] In some embodiments, the time-frequency resource where the second signal is located is allowed to carry the first target information.

[0164] In some embodiments, the first target information includes but is not limited to at least one of the following: physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), physical sidelink shared channel (PSSCH), physical sidelink control channel (PSCCH), physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), channel state information reference signal (CSI-RS), demodulation reference signal (DMRS).

[0165] In some embodiments, the first modulation mode and / or the first constellation point is determined based on a modulation mode adopted by the first target information carried on the time-frequency resource where the second signal is located.

[0166] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the modulation mode adopted by the first target information belongs to a third modulation mode set; wherein, the modulation modes in the first modulation mode set are agreed upon by a protocol, or, the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or, the modulation modes in the third modulation mode set are agreed upon by a protocol, or, the modulation modes in the third modulation mode set are configured or indicated by a network device.

[0167] For example, the modulation modes in the first modulation mode set are semi-statically configured or indicated by the network device, or the modulation modes in the first modulation mode set are dynamically configured or indicated by the network device.

[0168] For example, the modulation modes in the third modulation mode set are semi-statically configured or indicated by the network device, or the modulation modes in the third modulation mode set are dynamically configured or indicated by the network device.

[0169] In some embodiments, for the second signal (such as the off signal), as long as it satisfies the low level and satisfies the ratio of the amplitude compared to the high level, the low level, that is, the second signal (such as the off signal), can be detected normally. To this end, the time-frequency resource where the second signal (such as the off signal) is located can carry the first target information that can meet the low-level signal characteristics, and the time-frequency resources can be fully utilized. In this case, the modulation method and constellation point adopted by the first signal (such as the on signal) can be determined according to the modulation method adopted by the first target information. For example, when the modulation method of the first target information is BPSK or QPSK, the modulation method adopted by the first signal (such as the on signal) is 256QAM and the corresponding constellation point. For another example, when the modulation method of the first target information is 16QAM, the modulation method adopted by the first signal (such as the on signal) is 1024QAM and the corresponding constellation point.

[0170] In some embodiments, the energy per resource element (EPRE) of the subcarrier carrying the first signal is different from the EPRE of the subcarrier carrying the second signal.

[0171] For example, the EPRE of the subcarrier carrying the WUS signal can have a certain power offset from other NR signals to generate an OOK signal that meets a certain modulation depth. The EPRE of the first signal (e.g., the on signal) is different from the EPRE of the second signal (e.g., the off signal), and the power offset between them meets a certain threshold.

[0172] In some embodiments, a power offset between an EPRE of a subcarrier carrying the first signal and the second target information is greater than a power offset between an EPRE of a subcarrier carrying the second signal and the second target information.

[0173] That is, the EPRE of the first signal (eg, on signal) has a larger power offset relative to the EPRE of the second target information, and the EPRE of the second signal (eg, off signal) has a smaller power offset relative to the EPRE of the second target information.

[0174] In some embodiments, the second target information includes but is not limited to at least one of the following: secondary synchronization signal (SSS), CSI-RS, DMRS, PDSCH, PUSCH, PSSCH.

[0175] In some embodiments, the EPRE of the subcarrier carrying the first signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the first signal is configured or indicated by a network device; and / or, the EPRE of the subcarrier carrying the second signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the second signal is configured or indicated by a network device.

[0176] In some embodiments, the first communication device receives second information; wherein the second information is used to configure or indicate at least one second combination, and the second combination is a combination of the modulation mode, constellation point and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point and EPRE associated with the subcarrier carrying the second signal.

[0177] For example, the first communication device receives the second information sent by the second communication device, or the first communication device receives the second information sent by a device other than the second communication device.

[0178] In some embodiments, the second information is carried by one of the following: RRC signaling, MAC CE, DCI, PC5-RRC signaling, SCI.

[0179] In some embodiments, a combination of a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the first signal and a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0180] Therefore, in the embodiments of the present application, by optimizing the modulation scheme and / or constellation points associated with the subcarriers carrying the high-level and low-level signals in the target signal, the modulation depth between the high-level and low-level signals in the target signal meets the demodulation requirements, thereby improving the detection performance of the target signal. In other words, the target signal generated by the embodiments of the present application can meet the modulation depth requirements between the high-level and low-level signals based on envelope detection, thereby improving the detection performance of the target signal.

[0181] The above text, in combination with Figures 10 to 16, describes in detail the method embodiment of the present application. The following text, in combination with Figures 17 to 21, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0182] FIG17 shows a schematic block diagram of a communication device 300 according to an embodiment of the present application. The communication device 300 is a first communication device. As shown in FIG17 , the communication device 300 includes:

[0183] The first communication unit 310 is configured to receive a target signal;

[0184] The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level;

[0185] The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

[0186] In some embodiments, the first modulation mode and / or the first constellation point are determined based on the second modulation mode and / or the second constellation point.

[0187] In some embodiments, the first modulation mode and / or the first constellation point are agreed upon by a protocol, or the first modulation mode and / or the first constellation point are configured or indicated by a network device; and / or,

[0188] The second modulation mode and / or the second constellation point are agreed upon by a protocol, or the second modulation mode and / or the second constellation point are configured or indicated by a network device.

[0189] In some embodiments, the communication device 300 further includes:

[0190] The second communication unit 320 is configured to receive the first information;

[0191] The first information is used to configure or indicate at least one first combination, and the first combination is a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal.

[0192] In some embodiments, the first information is carried by one of the following:

[0193] Radio resource control RRC signaling, media access control layer control element MAC CE, downlink control information DCI, PC5-RRC signaling, side control information SCI.

[0194] In some embodiments, a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0195] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the second modulation mode belongs to a second modulation mode set;

[0196] The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the second modulation mode set are agreed upon by a protocol, or the modulation modes in the second modulation mode set are configured or indicated by a network device.

[0197] In some embodiments, the first constellation point belongs to a first constellation point set, and the second constellation point belongs to a second constellation point set;

[0198] The constellation points in the first constellation point set are agreed upon by a protocol, or the constellation points in the first constellation point set are configured or indicated by a network device; and / or the constellation points in the second constellation point set are agreed upon by a protocol, or the constellation points in the second constellation point set are configured or indicated by a network device.

[0199] In some embodiments, the time-frequency resource where the second signal is located is allowed to carry the first target information.

[0200] In some embodiments, the first modulation mode and / or the first constellation point is determined based on a modulation mode adopted by the first target information carried on the time-frequency resource where the second signal is located.

[0201] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the modulation mode used by the first target information belongs to a third modulation mode set;

[0202] In which, the modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the third modulation mode set are agreed upon by a protocol, or the modulation modes in the third modulation mode set are configured or indicated by a network device.

[0203] In some embodiments, the first target information includes at least one of the following: physical downlink shared channel PDSCH, physical downlink control channel PDCCH, physical sidelink shared channel PSSCH, physical sidelink control channel PSCCH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, channel state information reference signal CSI-RS, and demodulation reference signal DMRS.

[0204] In some embodiments, the energy per resource element (EPRE) of the subcarrier carrying the first signal is different from the EPRE of the subcarrier carrying the second signal.

[0205] In some embodiments, a power offset between an EPRE of a subcarrier carrying the first signal and the second target information is greater than a power offset between an EPRE of a subcarrier carrying the second signal and the second target information.

[0206] In some embodiments, the second target information includes at least one of the following: a secondary synchronization signal SSS, a CSI-RS, a DMRS, a PDSCH, a PUSCH, and a PSSCH.

[0207] In some embodiments, the EPRE of the subcarrier carrying the first signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the first signal is configured or indicated by a network device; and / or,

[0208] The EPRE of the subcarrier carrying the second signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the second signal is configured or indicated by a network device.

[0209] In some embodiments, the communication device 300 further includes:

[0210] The third communication unit 330 is configured to receive second information;

[0211] The second information is used to configure or indicate at least one second combination, and the second combination is a combination of the modulation mode, constellation point and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point and EPRE associated with the subcarrier carrying the second signal.

[0212] In some embodiments, the second information is carried by one of the following: RRC signaling, MAC CE, DCI, PC5-RRC signaling, SCI.

[0213] In some embodiments, a combination of a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the first signal and a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0214] In some embodiments, the target signal is a wake-up signal WUS.

[0215] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0216] It should be understood that the communication device 300 according to the embodiment of the present application may correspond to the first communication device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the communication device 300 are respectively for implementing the corresponding processes of the first communication device in the method 200 shown in Figure 10. For the sake of brevity, they will not be repeated here.

[0217] FIG18 shows a schematic block diagram of a communication device 400 according to an embodiment of the present application. The communication device 400 is a second communication device. As shown in FIG18 , the communication device 400 includes:

[0218] A first communication unit 410 is configured to send a target signal;

[0219] The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level;

[0220] The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

[0221] In some embodiments, the first modulation mode and / or the first constellation point are determined based on the second modulation mode and / or the second constellation point.

[0222] In some embodiments, the first modulation mode and / or the first constellation point are agreed upon by a protocol, or the first modulation mode and / or the first constellation point are configured or indicated by a network device; and / or,

[0223] The second modulation mode and / or the second constellation point are agreed upon by a protocol, or the second modulation mode and / or the second constellation point are configured or indicated by a network device.

[0224] In some embodiments, the communication device 400 includes:

[0225] The second communication unit 420 is configured to send the first information;

[0226] The first information is used to configure or indicate at least one first combination, and the first combination is a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal.

[0227] In some embodiments, the first information is carried by one of the following:

[0228] Radio resource control RRC signaling, media access control layer control element MAC CE, downlink control information DCI, PC5-RRC signaling, side control information SCI.

[0229] In some embodiments, a combination of a modulation mode and a constellation point associated with a subcarrier carrying the first signal and a modulation mode and a constellation point associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0230] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the second modulation mode belongs to a second modulation mode set;

[0231] The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the second modulation mode set are agreed upon by a protocol, or the modulation modes in the second modulation mode set are configured or indicated by a network device.

[0232] In some embodiments, the first constellation point belongs to a first constellation point set, and the second constellation point belongs to a second constellation point set;

[0233] The constellation points in the first constellation point set are agreed upon by a protocol, or the constellation points in the first constellation point set are configured or indicated by a network device; and / or the constellation points in the second constellation point set are agreed upon by a protocol, or the constellation points in the second constellation point set are configured or indicated by a network device.

[0234] In some embodiments, the time-frequency resource where the second signal is located is allowed to carry the first target information.

[0235] In some embodiments, the first modulation mode and / or the first constellation point is determined based on a modulation mode adopted by the first target information carried on the time-frequency resource where the second signal is located.

[0236] In some embodiments, the first modulation mode belongs to a first modulation mode set, and the modulation mode used by the first target information belongs to a third modulation mode set;

[0237] In which, the modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the third modulation mode set are agreed upon by a protocol, or the modulation modes in the third modulation mode set are configured or indicated by a network device.

[0238] In some embodiments, the first target information includes at least one of the following: physical downlink shared channel PDSCH, physical downlink control channel PDCCH, physical sidelink shared channel PSSCH, physical sidelink control channel PSCCH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, channel state information reference signal CSI-RS, and demodulation reference signal DMRS.

[0239] In some embodiments, the energy per resource element (EPRE) of the subcarrier carrying the first signal is different from the EPRE of the subcarrier carrying the second signal.

[0240] In some embodiments, a power offset between an EPRE of a subcarrier carrying the first signal and the second target information is greater than a power offset between an EPRE of a subcarrier carrying the second signal and the second target information.

[0241] In some embodiments, the second target information includes at least one of the following: a secondary synchronization signal SSS, a CSI-RS, a DMRS, a PDSCH, a PUSCH, and a PSSCH.

[0242] In some embodiments, the EPRE of the subcarrier carrying the first signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the first signal is configured or indicated by a network device; and / or,

[0243] The EPRE of the subcarrier carrying the second signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the second signal is configured or indicated by a network device.

[0244] In some embodiments, the communication device 400 includes:

[0245] The third communication unit 430 is used to send the second information;

[0246] The second information is used to configure or indicate at least one second combination, and the second combination is a combination of the modulation mode, constellation point and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point and EPRE associated with the subcarrier carrying the second signal.

[0247] In some embodiments, the second information is carried by one of the following: RRC signaling, MAC CE, DCI, PC5-RRC signaling, SCI.

[0248] In some embodiments, a combination of a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the first signal and a modulation mode, a constellation point, and an EPRE associated with a subcarrier carrying the second signal is agreed upon by a protocol.

[0249] In some embodiments, the target signal is a wake-up signal WUS.

[0250] In some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0251] It should be understood that the communication device 400 according to the embodiment of the present application may correspond to the second communication device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the communication device 400 are respectively for implementing the corresponding processes of the second communication device in the method 200 shown in Figure 10. For the sake of brevity, they will not be repeated here.

[0252] Figure 19 is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. The communication device 500 shown in Figure 19 includes a processor 510, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0253] In some embodiments, as shown in FIG19 , the communication device 500 may further include a memory 520. The processor 510 may call and execute a computer program from the memory 520 to implement the method in the embodiment of the present application.

[0254] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .

[0255] In some embodiments, as shown in FIG19 , the communication device 500 may further include a transceiver 530 , and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, the transceiver 530 may send information or data to other devices, or receive information or data sent by other devices.

[0256] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

[0257] In some embodiments, the processor 510 may implement the functionality of a processing unit in the first communication device, or the processor 510 may implement the functionality of a processing unit in the second communication device, which will not be described in detail here for the sake of brevity.

[0258] In some embodiments, the transceiver 530 may implement the function of the communication unit in the first communication device, which will not be described in detail here for the sake of brevity.

[0259] In some embodiments, the transceiver 530 may implement the function of a communication unit in the second communication device, which will not be described in detail here for the sake of brevity.

[0260] In some embodiments, the communication device 500 may specifically be the first communication device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the first communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0261] In some embodiments, the communication device 500 may specifically be the second communication device of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the second communication device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0262] Figure 20 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 600 shown in Figure 20 includes a processor 610, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0263] In some embodiments, as shown in FIG20 , the apparatus 600 may further include a memory 620 , wherein the processor 610 may call and execute a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0264] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0265] In some embodiments, the apparatus 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.

[0266] In some embodiments, the processor 610 may implement the functionality of a processing unit in the second communication device, or the processor 610 may implement the functionality of a processing unit in the first communication device, which will not be described in detail here for the sake of brevity.

[0267] In some embodiments, the input interface 630 may implement the functionality of a communication unit in the second communication device, or the input interface 630 may implement the functionality of a communication unit in the first communication device.

[0268] In some embodiments, the apparatus 600 may further include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips. Optionally, the processor 610 may be located inside or outside the chip.

[0269] In some embodiments, the output interface 640 may implement the functionality of a communication unit in the second communication device, or the output interface 640 may implement the functionality of a communication unit in the first communication device.

[0270] In some embodiments, the apparatus can be applied to the first communication device in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0271] In some embodiments, the apparatus may be applied to the second communication device in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be described here.

[0272] In some embodiments, the device mentioned in the embodiments of the present application may also be a chip, such as a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0273] FIG21 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in FIG21 , the communication system 700 includes a second communication device 710 and a first communication device 720 .

[0274] Among them, the second communication device 710 can be used to implement the corresponding functions implemented by the second communication device in the above method, and the first communication device 720 can be used to implement the corresponding functions implemented by the first communication device in the above method. For the sake of brevity, they are not repeated here.

[0275] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0276] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0277] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0278] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0279] In some embodiments, the computer-readable storage medium can be applied to the first communication device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0280] In some embodiments, the computer-readable storage medium can be applied to the second communication device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0281] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0282] In some embodiments, the computer program product can be applied to the first communication device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0283] In some embodiments, the computer program product can be applied to the second communication device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0284] The embodiment of the present application also provides a computer program.

[0285] In some embodiments, the computer program can be applied to the first communication device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0286] In some embodiments, the computer program can be applied to the second communication device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the second communication device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0287] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0288] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0293] 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 the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: The first communication device receives a target signal; The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

2. The method according to claim 1, wherein The first modulation mode and / or the first constellation point are determined based on the second modulation mode and / or the second constellation point.

3. The method according to claim 1 or 2, wherein: The first modulation mode and / or the first constellation point are agreed upon by a protocol, or the first modulation mode and / or the first constellation point are configured or indicated by a network device; and / or, The second modulation mode and / or the second constellation point are agreed upon by a protocol, or the second modulation mode and / or the second constellation point are configured or indicated by a network device.

4. The method according to claim 1 or 2, wherein: The method further comprises: The first communication device receives first information; The first information is used to configure or indicate at least one first combination, and the first combination is a combination of the modulation mode and constellation point associated with the subcarrier carrying the first signal and the modulation mode and constellation point associated with the subcarrier carrying the second signal.

5. The method according to claim 4, wherein The first information is carried by one of the following: Radio resource control RRC signaling, media access control layer control element MAC CE, downlink control information DCI, PC5-RRC signaling, side control information SCI.

6. The method according to claim 1 or 2, wherein: The combination of the modulation mode and constellation point associated with the subcarrier carrying the first signal and the modulation mode and constellation point associated with the subcarrier carrying the second signal is agreed upon by a protocol.

7. The method according to any one of claims 1 to 6, characterized in that The first modulation mode belongs to a first modulation mode set, and the second modulation mode belongs to a second modulation mode set; The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the second modulation mode set are agreed upon by a protocol, or the modulation modes in the second modulation mode set are configured or indicated by a network device.

8. The method according to any one of claims 1 to 7, characterized in that The first constellation point belongs to a first constellation point set, and the second constellation point belongs to a second constellation point set; The constellation points in the first constellation point set are agreed upon by a protocol, or the constellation points in the first constellation point set are configured or indicated by a network device; and / or the constellation points in the second constellation point set are agreed upon by a protocol, or the constellation points in the second constellation point set are configured or indicated by a network device.

9. The method according to any one of claims 1 to 8, characterized in that The time-frequency resource where the second signal is located is allowed to carry the first target information.

10. The method according to claim 9, wherein The first modulation mode and / or the first constellation point is determined based on a modulation mode adopted by the first target information carried on the time-frequency resource where the second signal is located.

11. The method according to claim 10, wherein The first modulation mode belongs to a first modulation mode set, and the modulation mode used by the first target information belongs to a third modulation mode set; The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the third modulation mode set are agreed upon by a protocol, or the modulation modes in the third modulation mode set are configured or indicated by a network device.

12. The method according to any one of claims 9 to 11, characterized in that The first target information includes at least one of the following: physical downlink shared channel PDSCH, physical downlink control channel PDCCH, physical sidelink shared channel PSSCH, physical sidelink control channel PSCCH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, channel state information reference signal CSI-RS, and demodulation reference signal DMRS.

13. The method according to any one of claims 1 to 12, characterized in that The energy per resource element EPRE of the subcarrier carrying the first signal is different from the EPRE of the subcarrier carrying the second signal.

14. The method according to claim 13, wherein A power offset between an EPRE of a subcarrier carrying the first signal and the second target information is greater than a power offset between an EPRE of a subcarrier carrying the second signal and the second target information.

15. The method according to claim 14, wherein The second target information includes at least one of the following: a secondary synchronization signal SSS, a CSI-RS, a DMRS, a PDSCH, a PUSCH, and a PSSCH.

16. The method according to any one of claims 13 to 15, characterized in that The EPRE of the subcarrier carrying the first signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the first signal is configured or indicated by a network device; and / or, The EPRE of the subcarrier carrying the second signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the second signal is configured or indicated by a network device.

17. The method according to any one of claims 13 to 16, characterized in that The method further comprises: The first communication device receives second information; The second information is used to configure or indicate at least one second combination, and the second combination is a combination of the modulation mode, constellation point and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point and EPRE associated with the subcarrier carrying the second signal.

18. The method according to claim 17, wherein The second information is carried by one of the following: RRC signaling, MAC CE, DCI, PC5-RRC signaling, SCI.

19. The method according to any one of claims 13 to 16, characterized in that The combination of the modulation mode, constellation point, and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point, and EPRE associated with the subcarrier carrying the second signal is agreed upon by a protocol.

20. The method according to any one of claims 1 to 19, characterized in that The target signal is a wake-up signal WUS.

21. A wireless communication method, characterized in that: include: The second communication device sends a target signal; The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

22. The method according to claim 21, wherein The first modulation mode and / or the first constellation point are determined based on the second modulation mode and / or the second constellation point.

23. The method according to claim 21 or 22, wherein: The first modulation mode and / or the first constellation point are agreed upon by a protocol, or the first modulation mode and / or the first constellation point are configured or indicated by a network device; and / or, The second modulation mode and / or the second constellation point are agreed upon by a protocol, or the second modulation mode and / or the second constellation point are configured or indicated by a network device.

24. The method according to claim 21 or 22, wherein: The method further comprises: The second communication device sends first information; The first information is used to configure or indicate at least one first combination, and the first combination is a combination of the modulation mode and constellation point associated with the subcarrier carrying the first signal and the modulation mode and constellation point associated with the subcarrier carrying the second signal.

25. The method of claim 24, wherein: The first information is carried by one of the following: Radio resource control RRC signaling, media access control layer control element MAC CE, downlink control information DCI, PC5-RRC signaling, side control information SCI.

26. The method according to claim 21 or 22, wherein: The combination of the modulation mode and constellation point associated with the subcarrier carrying the first signal and the modulation mode and constellation point associated with the subcarrier carrying the second signal is agreed upon by a protocol.

27. The method according to any one of claims 21 to 26, characterized in that The first modulation mode belongs to a first modulation mode set, and the second modulation mode belongs to a second modulation mode set; The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the second modulation mode set are agreed upon by a protocol, or the modulation modes in the second modulation mode set are configured or indicated by a network device.

28. The method according to any one of claims 21 to 27, characterized in that The first constellation point belongs to a first constellation point set, and the second constellation point belongs to a second constellation point set; The constellation points in the first constellation point set are agreed upon by a protocol, or the constellation points in the first constellation point set are configured or indicated by a network device; and / or the constellation points in the second constellation point set are agreed upon by a protocol, or the constellation points in the second constellation point set are configured or indicated by a network device.

29. The method according to any one of claims 21 to 28, characterized in that The time-frequency resource where the second signal is located is allowed to carry the first target information.

30. The method of claim 29, wherein: The first modulation mode and / or the first constellation point is determined based on a modulation mode adopted by the first target information carried on the time-frequency resource where the second signal is located.

31. The method of claim 30, wherein: The first modulation mode belongs to a first modulation mode set, and the modulation mode used by the first target information belongs to a third modulation mode set; The modulation modes in the first modulation mode set are agreed upon by a protocol, or the modulation modes in the first modulation mode set are configured or indicated by a network device; and / or the modulation modes in the third modulation mode set are agreed upon by a protocol, or the modulation modes in the third modulation mode set are configured or indicated by a network device.

32. The method according to any one of claims 29 to 31, wherein The first target information includes at least one of the following: physical downlink shared channel PDSCH, physical downlink control channel PDCCH, physical sidelink shared channel PSSCH, physical sidelink control channel PSCCH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, channel state information reference signal CSI-RS, and demodulation reference signal DMRS.

33. The method according to any one of claims 21 to 32, characterized in that The energy per resource element EPRE of the subcarrier carrying the first signal is different from the EPRE of the subcarrier carrying the second signal.

34. The method of claim 33, wherein: A power offset between an EPRE of a subcarrier carrying the first signal and the second target information is greater than a power offset between an EPRE of a subcarrier carrying the second signal and the second target information.

35. The method of claim 34, wherein: The second target information includes at least one of the following: a secondary synchronization signal SSS, a CSI-RS, a DMRS, a PDSCH, a PUSCH, and a PSSCH.

36. The method according to any one of claims 33 to 35, wherein The EPRE of the subcarrier carrying the first signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the first signal is configured or indicated by a network device; and / or, The EPRE of the subcarrier carrying the second signal is agreed upon by a protocol, or the EPRE of the subcarrier carrying the second signal is configured or indicated by a network device.

37. The method according to any one of claims 33 to 36, wherein The method further comprises: The second communication device sends second information; The second information is used to configure or indicate at least one second combination, and the second combination is a combination of the modulation mode, constellation point and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point and EPRE associated with the subcarrier carrying the second signal.

38. The method of claim 37, wherein: The second information is carried by one of the following: RRC signaling, MAC CE, DCI, PC5-RRC signaling, SCI.

39. The method according to any one of claims 33 to 36, wherein The combination of the modulation mode, constellation point, and EPRE associated with the subcarrier carrying the first signal and the modulation mode, constellation point, and EPRE associated with the subcarrier carrying the second signal is agreed upon by a protocol.

40. The method according to any one of claims 21 to 39, wherein The target signal is a wake-up signal WUS.

41. A communication device, characterized in that The communication device is a first communication device, and the communication device includes: A first communication unit, configured to receive a target signal; The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

42. A communication device, characterized in that The communication device is a second communication device, and the communication device includes: A first communication unit, configured to send a target signal; The target signal is a signal that carries information through signal amplitude, and the target signal includes a first signal and a second signal, the first signal is at a first level, the second signal is at a second level, and the first level is higher than the second level; The subcarrier carrying the first signal is associated with a first modulation mode and / or a first constellation point, the subcarrier carrying the second signal is associated with a second modulation mode and / or a second constellation point, or the subcarrier carrying the second signal is a null subcarrier.

43. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the terminal device executes the method according to any one of claims 1 to 20.

44. A network device, characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the network device executes the method according to any one of claims 21 to 40.

45. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 20.

46. ​​A chip, characterized in that include: A processor, configured to call and execute a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 21 to 40.

47. A computer-readable storage medium, characterized in that For storing a computer program, when the computer program is executed, the method according to any one of claims 1 to 20 is implemented.

48. A computer-readable storage medium, characterized in that For storing a computer program, when said computer program is executed, the method according to any one of claims 21 to 40 is implemented.

49. A computer program product, characterized in that The method comprises computer program instructions, which, when executed, implement the method according to any one of claims 1 to 20.

50. A computer program product, characterized in that The method comprises computer program instructions which, when executed, implement the method according to any one of claims 21 to 40.

51. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 20 is implemented.

52. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 21 to 40 is implemented.

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