Wireless communication method and device

Abstract

The embodiment of the invention provides a wireless communication method and equipment, AMP equipment can determine a local clock according to a third signal obtained by performing cross modulation or intermodulation processing on a first signal and a second signal, and the AMP equipment does not need to use a high-precision oscillator (such as a crystal oscillator and a numerical control oscillator) to generate an accurate local clock. The local clock can be determined based on the high-order component obtained by intermodulation or intermodulation of different frequency signals, and the power consumption and the cost of AMP equipment can be reduced. The wireless communication method comprises the following steps: the AMP equipment receives a first signal and a second signal; the AMP device performs intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal; and the AMP device determines a local clock according to the third signal.

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] Ambient Power (AMP) devices offer low complexity and cost, are maintenance-free, and require no batteries. They support energy harvesting and / or backscatter communication, enabling high-density and large-scale deployment at a low cost. Considering the service characteristics, capability limitations, and operating power consumption constraints of AMP devices, how to determine the local clock on AMP devices is a challenge that needs to be addressed.

[0003] Summary of the Invention

[0004] An embodiment of the present application provides a method and device for wireless communication. The AMP device can determine a local clock based on a third signal obtained by intermodulation or intermodulation processing of a first signal and a second signal. The AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a numerically controlled oscillator, etc.) to generate an accurate local clock. The local clock can be determined based on high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device.

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

[0006] The AMP device receives the first signal and the second signal;

[0007] The AMP device performs intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal;

[0008] The AMP device determines a local clock according to the third signal.

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

[0010] The first communication device sends a first signal and / or a second signal to the AMP device;

[0011] The third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock of the AMP device;

[0012] In the case where the first communication device only sends the first signal, the second signal is sent to the AMP device by the second communication device triggered by the first communication device; or, in the case where the first communication device only sends the second signal, the second signal is sent to the AMP device after being triggered by the second communication device.

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

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

[0015] In a fourth aspect, a communication device is provided, which is a first communication device and is configured to execute the method in the second aspect. Specifically, the communication device includes a functional module configured to execute the method in the second aspect.

[0016] In a fifth aspect, an AMP device is provided, comprising a processor and a memory; the memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, so that the AMP device executes the method in the above-mentioned first aspect.

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

[0018] In a seventh aspect, a device is provided for implementing the method in any one of the first to second aspects above.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Through the above technical solution, the AMP device can determine the local clock based on the third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal. The AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a numerically controlled oscillator, etc.) to generate an accurate local clock. It can determine the local clock based on the high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0025] FIG2 is a schematic diagram of a zero-power communication provided by the present application.

[0026] FIG3 is a schematic diagram of backscatter communication provided by the present application.

[0027] FIG4 is a schematic diagram of energy harvesting provided by the present application.

[0028] FIG5 is a circuit diagram of a resistive load modulation provided by the present application.

[0029] FIG6 is a schematic diagram of a second-order intermodulation or intermodulation component provided by the present application.

[0030] FIG7 is a schematic diagram of a third-order intermodulation or intermodulation component provided by the present application.

[0031] FIG8 is a schematic diagram of a channel bandwidth provided by the present application.

[0032] FIG9 is a schematic diagram of an IF signal obtained by intermodulation or intermodulation of two frequency signals provided by the present application.

[0033] FIG10 is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0034] 11 to 13 are schematic diagrams of sending a first signal and a second signal according to embodiments of the present application.

[0035] FIG14 is a schematic block diagram of an AMP device provided according to an embodiment of the present application.

[0036] FIG15 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0037] Figure 16 is a schematic block diagram of another communication device provided according to an embodiment of the present application.

[0038] FIG17 is a schematic block diagram of a device provided according to an embodiment of the present application.

[0039] Figure 18 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] The embodiments of the present application describe various embodiments in conjunction with AMP devices and communication devices. AMP devices may also be referred to as zero-power devices or ambient energy IoT devices. Communication devices may be network devices (such as base stations), access points (APs), terminal devices, stations (STAs), transmission reception points (TRPs), or relay devices. Of course, the communication devices may also be other devices, and the embodiments of the present application are not limited thereto.

[0047] The terminal device can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with 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.

[0048] 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.).

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 communication device 110, which may be a device that communicates with an AMP device 120 (or a zero-power device). The communication device 110 may provide communication coverage for a specific geographic area and may communicate with AMP devices within the coverage area.

[0055] FIG1 exemplarily shows a communication device and two AMP devices. Optionally, the communication system 100 may include multiple communication devices and each communication device may include another number of AMP devices within its coverage area, which is not limited in this embodiment of the present application.

[0056] 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.

[0057] It should be understood that in the embodiments of the present application, a device having communication functionality 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 communication device 110 and an AMP device 120 having communication functionality. Communication device 110 and AMP 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, or other network entities, which is not limited in the embodiments of the present application.

[0058] 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.

[0059] 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.

[0060] 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 obtain it through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain it through C; it can also mean that there is an association between A and B.

[0061] It should be understood that the "at least one or at least one" mentioned in the embodiments of the present application can mean "one or more", and the "positive integer" mentioned in the embodiments of the present application can mean "values ​​such as 1, 2, 3...", and the "non-negative integer" mentioned in the embodiments of the present application can mean "values ​​such as 0, 1, 2, 3...", and the "integer" mentioned in the embodiments of the present application can mean "values ​​such as..., -3, -2, -1, 0, 1, 2, 3,...", and can be replaced with any possible value based on the requirements of the embodiment.

[0062] It should be understood that the figures and / or tables shown in the embodiments of the present application are merely examples. Specifically, in some cases, some of the information contained in the figures and / or tables shown in the embodiments of the present application may independently constitute an optional embodiment. For example, each row or column in the table may independently constitute an optional embodiment. The present application does not limit this.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] To facilitate a better understanding of the embodiments of the present application, the zero-power communication technology related to the present application is explained.

[0067] Zero-power communication uses energy harvesting and / or backscatter communication technology. A zero-power communication network consists of network devices and zero-power devices, as shown in Figure 2. The network devices are used to send wireless power supply signals and downlink communication signals to the zero-power devices and receive backscatter signals from the zero-power devices. A basic zero-power device includes an energy harvesting module, a backscatter communication module, and a low-power computing module. In addition, the zero-power device may also have a memory or sensor for storing basic information (such as item identification) or obtaining sensor data such as ambient temperature and humidity.

[0068] The key technologies of zero-power communication mainly include radio frequency (RF) energy harvesting (Power Harvesting) and backscattering communication (Back Scattering).

[0069] Specifically, RF power harvesting (RF Power Harvesting) can be shown in Figure 3. The RF energy harvesting module uses the principle of electromagnetic induction to collect electromagnetic wave energy from space, thereby obtaining the energy required to operate zero-power devices. For example, it is used to drive low-power demodulation and modulation modules, sensors, and memory reading. Therefore, zero-power devices do not require traditional batteries.

[0070] Specifically, backscatter communication can be illustrated in Figure 4. A zero-power communication terminal receives wireless signals sent by the network, modulates them, loads the information to be transmitted, and radiates the modulated signal from the antenna. This information transmission process is called backscatter communication. Backscatter and load modulation are closely related. Load modulation adjusts and controls the circuit parameters of the zero-power device's oscillating circuit according to the data stream's rhythm, causing parameters such as the electronic tag's impedance to change accordingly, thereby completing the modulation process. Load modulation techniques primarily include resistive load modulation and capacitive load modulation. In resistive load modulation, a resistor is connected in parallel to the load, which is turned on or off based on the control of the binary data stream, as shown in Figure 5. The switching of the resistor causes a change in the circuit voltage, thus implementing amplitude shift keying (ASK) modulation. This modulation and transmission of the signal is achieved by adjusting the amplitude of the backscattered signal from the zero-power device. Similarly, in capacitive load modulation, the resonant frequency of the circuit can be changed by switching the capacitor on and off, realizing frequency shift keying (FSK) modulation, that is, the modulation and transmission of the signal is achieved by adjusting the operating frequency of the backscattered signal of the zero-power device.

[0071] It can be seen that the zero-power device uses load modulation to modulate the incoming signal, thereby realizing the backscatter communication process. Therefore, the zero-power device has significant advantages:

[0072] (1) Zero-power devices do not actively transmit signals, so they do not require complex RF links, such as power amplifiers (PAs) and RF filters.

[0073] (2) Zero-power devices do not need to actively generate high-frequency signals, so they do not require high-frequency crystal oscillators;

[0074] (3) With the help of backscatter communication, the signal transmission of zero-power devices does not require the consumption of the energy of the zero-power devices themselves.

[0075] Due to its significant advantages such as extremely low cost, zero power consumption, and small size, zero-power communication can be widely used in various industries, such as logistics for vertical industries, smart warehousing, smart agriculture, energy and electricity, industrial Internet, etc.; it can also be applied to personal applications such as smart wearables and smart homes.

[0076] To facilitate a better understanding of the embodiments of the present application, the power supply signal and trigger signal in the zero-power communication system related to the present application are explained.

[0077] Energy supply signal: The energy supply signal carrier can be a base station, smartphone, smart gateway, charging station, micro base station, etc. In terms of frequency band, the radio waves used for energy supply can be low frequency, medium frequency, high frequency, etc. In terms of waveform, the radio waves used for energy supply can be sine wave, square wave, triangle wave, pulse wave, rectangular wave, etc. In addition, the wave can be continuous or discontinuous (i.e., allowing for certain interruptions). The energy supply can be a signal specified in the 3GPP standard. For example, 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.

[0078] Trigger signal / control information: The trigger signal carrier can be a base station, smartphone, smart gateway, etc.; the frequency band used for power supply can be low frequency, medium frequency, high frequency, etc.; the waveform used for power supply can be sine wave, square wave, triangle wave, pulse wave, rectangular wave, etc.; in addition, it can be a continuous wave or a discontinuous wave (i.e., allowing for certain interruptions). The trigger signal can be a signal specified in the 3GPP standard, such as SRS, PUSCH, PRACH, PUCCH, PDCCH, PDSCH, PBCH, etc.; or it can be a new signal.

[0079] In order to facilitate a better understanding of the embodiments of the present application, the classification of zero-power devices related to the present application is explained.

[0080] Optionally, based on the energy source and usage of the zero-power device, the zero-power device can be divided into a passive zero-power device, a semi-passive zero-power device and an active zero-power device.

[0081] 1) Passive zero-power devices

[0082] Zero-power devices do not require internal batteries. When they approach network devices (such as the reader / writer of a radio frequency identification (RFID) system), they are within the near field formed by the radiation from the network device's antenna. Therefore, the zero-power device antenna generates an induced current through electromagnetic induction, which drives the low-power chip circuit of the zero-power device. This implements tasks such as demodulating the forward link signal (downlink, the link from the network device to the zero-power device) and modulating the backward link signal (uplink, the link from the zero-power device to the network device). For backscatter links, the zero-power device uses backscattering to transmit signals.

[0083] It can be seen that the passive zero-power device does not require a built-in battery to drive either the forward link or the reverse link, and is a truly zero-power device.

[0084] Passive zero-power devices do not require batteries, and their RF and baseband circuits are very simple. For example, they do not require a low-noise amplifier (LNA), a power amplifier (PA), a crystal oscillator, or an analog-to-digital conversion (ADC). Therefore, they have many advantages such as small size, light weight, very low price, and long service life.

[0085] Passive zero-power terminals can also support other energy collection methods. By collecting energy from the environment (such as light energy, thermal energy, kinetic energy, mechanical energy, etc.), they can obtain energy for driving circuits and support terminal devices to communicate.

[0086] 2) Semi-passive zero-power devices

[0087] Semi-passive zero-power devices do not have conventional batteries installed themselves, but can use radio frequency (RF) energy harvesting modules to harvest radio wave energy or use energy harvesting modules to harvest energy from the environment (such as solar energy, thermal energy, mechanical vibration energy, etc.), and store the harvested energy in an energy storage unit (such as a capacitor). After the energy storage unit obtains energy, it can drive the low-power chip circuit of the zero-power device. It can realize tasks such as demodulation of forward link signals and modulation of backward link signals. For backscatter links, zero-power devices use backscatter implementation to transmit signals.

[0088] It can be seen that the semi-passive zero-power device does not require a built-in battery to drive either the forward link or the reverse link. Although it uses energy stored in capacitors during operation, the energy comes from the radio energy collected by the energy harvesting module. Therefore, it is also a truly zero-power device.

[0089] Semi-passive zero-power devices inherit many advantages of passive zero-power devices, so they have many advantages such as small size, light weight, very low price, and long service life.

[0090] 3) Active zero-power devices

[0091] The zero-power devices used in some scenarios can also be active zero-power devices. Such terminals can have built-in batteries (conventional batteries, such as dry batteries, rechargeable lithium batteries, etc.). The battery is used to drive the low-power chip circuit of the zero-power device. It realizes the demodulation of the forward link signal and the modulation of the reverse link signal. However, for the backscatter link, the zero-power device uses the backscatter implementation method to transmit the signal. Therefore, the zero power consumption of this type of terminal is mainly reflected in the fact that the signal transmission of the reverse link does not require the terminal's own power, but uses the backscatter method. Although the active zero-power device uses a battery, due to the sampling of ultra-low power communication technology, the power consumption is very low, so compared with the existing technology, the battery life can be greatly improved.

[0092] Active zero-power devices, with built-in batteries to power the RFID chip, increase the tag's read and write distance and improve communication reliability. Therefore, they are suitable for scenarios with relatively high requirements for communication distance and read latency.

[0093] Some zero-power terminals, such as semi-passive zero-power terminals or active zero-power terminals, may have the ability to actively transmit, that is, in addition to communicating through backscattering, the backward link may also communicate through active transmission.

[0094] As we all know, zero-power IoT services, like other IoT services, will primarily focus on uplink services. Therefore, based on transmitter type, zero-power devices can be categorized as backscatter-based, active-transmitter-based, and both backscatter and active-transmitter-based.

[0095] 1) Zero-power devices based on backscattering

[0096] These zero-power devices use the aforementioned backscattering method to transmit uplink data. They lack active transmitters, only backscattering transmitters. Therefore, when these terminals transmit data, they require network equipment to provide a carrier, which they then use to perform backscattering to achieve data transmission.

[0097] 2) Zero-power devices based on active transmitters

[0098] These zero-power devices use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending data, these zero-power devices can use their own active transmitters to send data without the need for network equipment to provide a carrier. Examples of active transmitters suitable for zero-power devices include ultra-low-power ASK and ultra-low-power FSK transmitters. Based on current implementations, these transmitters can reduce overall power consumption to 400-600uW when transmitting a 100uW signal.

[0099] 3) Zero-power devices with both backscatter and active transmitters

[0100] This type of terminal supports both backscatter and active transmitters. The terminal can determine which uplink signal transmission method to use: backscatter or active transmitter, based on various conditions (such as battery life and available ambient energy) or based on network device scheduling.

[0101] 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.

[0102] Cellular IoT is booming. 3GPP has standardized IoT technologies such as Narrow Band Internet of Things (NB-IoT), Machine Type Communication (MTC), and Reduced Capability (RedCap). However, there are still many scenarios where IoT communication needs cannot be met using existing technologies.

[0103] For example, consider harsh communication environments. Certain IoT scenarios may face extreme conditions such as high temperatures, extremely low temperatures, high humidity, high voltage, high radiation, or high-speed movement. Examples include ultra-high voltage substations, high-speed train track monitoring, environmental monitoring in high-altitude cold regions, and industrial production lines. In these scenarios, existing IoT terminals will not function due to the operating environment limitations of conventional power supplies. Furthermore, extreme operating environments are also detrimental to IoT maintenance, such as battery replacement.

[0104] Another example is the demand for extremely small terminal form factors. Certain IoT communication scenarios, such as food traceability, commodity distribution, and smart wearables, require terminals to be extremely small for ease of use. For example, IoT terminals used for commodity management in the distribution process often take the form of electronic tags, embedded in product packaging in a very compact form factor. Another example is lightweight wearable devices that can meet user needs while improving the user experience.

[0105] Another example is the demand for extremely low-cost IoT communications. Numerous IoT communication scenarios require IoT terminals to be sufficiently inexpensive to enhance their competitiveness compared to alternative technologies. For example, in logistics or warehousing scenarios, to facilitate the management of large numbers of circulating items, IoT terminals can be attached to each item. Communication between the terminal and the logistics network enables precise management of the entire logistics process and lifecycle. These scenarios require IoT terminals to be competitively priced.

[0106] Therefore, in order to cover these unmet IoT communication needs, cellular networks also need to develop ultra-low-cost, extremely small-size, battery-free / maintenance-free IoT, and zero-power IoT can just meet this need.

[0107] It's important to note that the Zero Power Internet of Things (ZPEI) can also be referred to as the Ambient Power Enabled IoT (Ambient IoT). Specifically, an Ambient IoT device refers to an IoT device that uses various ambient energies, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy. An Ambient IoT device can have no energy storage capacity or very limited energy storage capacity (such as using a capacitor with a capacity of tens of microfarads).

[0108] In some embodiments, the Ambient IoT device can be used in at least the following four scenarios:

[0109] Object recognition, such as logistics, production line product management, and supply chain management;

[0110] Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of working environment and natural environment;

[0111] Positioning, such as indoor positioning, intelligent object search, and production line item positioning;

[0112] Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0113] To facilitate a better understanding of the embodiments of the present application, intermodulation (Inter Modulation) and cross modulation (Cross Modulation) related to the present application are explained.

[0114] Cross modulation refers to the modulation of a desired signal by unwanted signals generated by the interaction of signals in nonlinear devices, networks, or communication media. The interaction of the spectral components of one or more input signals produces new components whose frequencies are linear combinations of integer multiples of the frequencies of the input signal components.

[0115] Intermodulation occurs in nonlinear devices or media. The spectral components of one or more input signals interact with each other to produce new components whose frequencies are linear combinations of integer multiples of the frequencies of the input signal components.

[0116] Specifically, often, when an input signal passes through a nonlinear transmission network (due to the nonlinear characteristics of RF devices), it generates harmonic components. These harmonic components are integer multiples of the fundamental frequency f, such as 2f, 3f, and 4f. Generally speaking, the amplitude of these harmonics gradually decreases at higher frequencies.

[0117] For example, when two RF signals f1 and f2 pass through passive components, intermodulation signals of 2nd, 3rd, 4th, 5th, 6th, 7th, and so on, are generated. Frequencies 2f1, 2f2, (f1+f2), and (f2-f1) are second-order intermodulation products. As shown in Figure 6, f1+f2 and f2-f1 are second-order intermodulation products, represented by IM2(f2-f1) and IM2(f1+f2). If the second-order signal components 2f1 and 2f2 are mixed with the first-order signal components f1 and f2, new frequencies are generated, as shown in Figure 7. The two third-order intermodulation products are (2f1-f2) and (2f2-f1).

[0118] To facilitate a better understanding of the embodiments of the present application, the channels in WiFi related to the present application are explained.

[0119] Wi-Fi is a WLAN based on the IEEE 802.11 standard. There are many standard protocols for wireless local area networks (WLANs), such as the IEEE 802.11 protocol suite and the HiperLAN protocol suite.

[0120] The WLAN channel list is the wireless channels that IEEE 802.11 (or WiFi) wireless networks should use.

[0121] The 802.11 working group has divided two independent frequency bands: 2.4 GHz and 4.9 / 5.8 GHz. Each band is further divided into several channels, and each country has its own policies on how to use these bands, as shown in Table 1.

[0122] Table 1

[0123] The effective channel bandwidth is 20 MHz and the actual bandwidth is 22 MHz, of which 2 MHz is the isolation band, as shown in Figure 8.

[0124] The center frequency interval of adjacent channels is 5 MHz. There is frequency overlap among multiple adjacent channels. There are three groups of channels (1, 6, 11 or 2, 7, 12 or 3, 8, 13) that do not interfere with each other, as shown in Table 2.

[0125] Table 2

[0126] In order to facilitate a better understanding of the embodiments of the present application, the problems solved by the present application are explained.

[0127] AMP devices (also known as zero-power devices or ambient IoT devices) are low-complexity, low-cost, maintenance-free, and battery-free. They can be categorized as passive, semi-passive, or active zero-power terminals. They harvest energy from the environment (such as radio frequency, light, heat, mechanical, and kinetic energy) to generate energy for communication. They can support backscatter and / or active transmission communication methods.

[0128] Because AMP devices must be designed and implemented with low complexity, low cost, and low power consumption in mind, they often cannot maintain relatively precise timing, minimal frequency drift, or time drift like traditional terminal devices. They also cannot maintain an accurate local oscillation signal at the required frequency for extended periods (they cannot maintain frequency stability for extended periods and experience frequency drift). Therefore, obtaining a local clock using a low-power, low-cost method is an urgent problem that needs to be solved.

[0129] Based on the above problems, in some embodiments of the present application, intermodulation / intermodulation of signals of different frequencies can be performed based on the intermodulation / intermodulation principle. After extracting the frequency component signal, the required reference clock signal is obtained through envelope detection, and a local clock is obtained based on the reference clock signal (for example, by frequency multiplication processing). For example, when the transmitting end transmits a signal, it simultaneously transmits a single-tone signal with a frequency of F1 and a single-tone signal with a frequency of F2, for example, F1>F2. The AMP device receives the two signals F1 and F2, and extracts the frequency components through intermodulation / intermodulation processing, for example, extracting the intermodulation / intermodulation signal of IM2 (F1-F2). As shown in FIG9 , envelope detection is performed on the IM2 signal to obtain a preliminary clock signal, and the local clock is further obtained based on the clock signal (for example, frequency multiplication processing can be performed). That is, in an embodiment of the present application, the AMP device can determine the local clock based on the intermediate frequency signal obtained by intermodulation or intermodulation processing of two signals of different frequencies. The AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a numerically controlled oscillator, etc.) to generate an accurate local clock. It can determine the local clock based on the high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device.

[0130] In addition, how to transmit single-tone signals of different frequencies so that the AMP device can intermodulate / crossmodulate based on these two different single-tone signals and obtain a local clock is also an urgent problem to be solved. Based on this problem, the present application proposes a signal transmission scheme that can transmit two signals (i.e., a first signal and a second signal) on two different candidate frequency domain resources; or, transmit two signals (i.e., a first signal and a second signal) on different frequency domain resources within the same candidate frequency domain resource, with a protection interval between the frequency domain resources used to transmit the two signals (i.e., the first signal and the second signal).

[0131] 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.

[0132] 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:

[0133] S210, the first communication device sends a first signal and / or a second signal to the AMP device;

[0134] S220, the AMP device receives the first signal and the second signal;

[0135] S230, the AMP device performs intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal;

[0136] S240: The AMP device determines a local clock according to the third signal.

[0137] It should be understood that FIG10 shows the steps or operations of the wireless communication method 200, but these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of the operations in FIG10.

[0138] In an embodiment of the present application, the AMP device may also be referred to as a zero-power device or an ambient IoT device (A-IoT device). It has a simple structure, low complexity, and low cost. It can support energy collection from ambient energy (such as light energy, thermal energy, radio frequency energy, mechanical energy, kinetic energy, etc.) to obtain the energy required for communication. It can support backscattering communication methods and / or active transmission communication methods.

[0139] In the embodiment of the present application, the AMP device can be applied to WiFi and / or cellular networks.

[0140] In an embodiment of the present application, the AMP device can determine the local clock based on a third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal. The AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a numerically controlled oscillator, etc.) to generate an accurate local clock. It can determine the local clock based on high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device.

[0141] In some embodiments, the above S240 may specifically include:

[0142] The AMP device performs envelope detection on the third signal, and the AMP device acquires or determines a local clock based on the signal after the envelope detection.

[0143] For example, the AMP device directly obtains the local clock based on the signal after envelope detection.

[0144] For another example, the AMP device performs frequency multiplication processing on the signal after envelope detection to obtain a local clock.

[0145] Specifically, the AMP device receives two single-tone RF signals (i.e., a first signal and a second signal) of different frequencies, performs intermodulation / intermodulation on the two signals, performs envelope detection based on the frequency components of the intermodulation / intermodulation (i.e., a third signal), such as IM2 (F1-F2), and directly or indirectly derives a local clock based on the signal obtained after envelope detection. As a result, the AMP device does not need to use a high-precision oscillator (e.g., a crystal oscillator, a digitally controlled oscillator, etc.) to generate an accurate local clock. Instead, it can determine the local clock based on high-order components obtained by intermodulation or intermodulation of signals of different frequencies, helping to reduce the power consumption and cost of the AMP device.

[0146] For example, envelope detection is performed on the third signal (e.g., the IM2 signal) to obtain an initial clock signal, and the local clock is further derived based on the initial clock signal. Alternatively, the initial clock signal can be frequency-multiplied to obtain the local clock. For example, if the AMP device expects a clock frequency of 2.5 GHz, the 250 kHz initial clock signal can be frequency-multiplied to obtain a 2.5 GHz local clock.

[0147] In some embodiments, the first signal and the second signal are sent by the same device, or the first signal and the second signal are sent by different devices.

[0148] In some embodiments, when the first communication device sends the first signal and the second signal, the first communication device is one of the following: an access point (AP), a station (STA), a base station, a terminal device, a relay device, or a TRP.

[0149] In some embodiments, when the first communication device only sends the first signal, the second signal is triggered by the first communication device to be sent to the AMP device by the second communication device, as shown in Figure 10. Of course, the second signal can also be actively sent by the second communication device, and the embodiments of the present application are not limited to this. Optionally, the first communication device is one of the following: access point (AP), station (STA), base station, terminal device, relay device, TRP. Optionally, the second communication device is one of the following: access point (AP), station (STA), base station, terminal device, relay device, TRP, energy supply device of AMP device, dedicated device, third-party device.

[0150] In some embodiments, when the first communication device only sends the second signal, the second signal is sent to the AMP device after being triggered by the second communication device, as shown in Figure 10. Of course, the second signal can also be actively sent by the first communication device, and the embodiments of the present application are not limited to this. Optionally, the first communication device is one of the following: access point (AP), station (STA), base station, terminal device, relay device, TRP, power supply device of AMP device, dedicated device, third-party device. Optionally, the second communication device is one of the following: access point (AP), station (STA), base station, terminal device, relay device, TRP.

[0151] In some embodiments, the first signal is a reference radio frequency signal or a dedicated frequency modulation signal. Of course, the first signal can also be other signals, which is not limited in this application.

[0152] In some embodiments, the second signal is a reference radio frequency signal or a dedicated frequency modulation signal. Of course, the second signal can also be other signals, which is not limited in this application.

[0153] In some embodiments, the third signal is an intermediate frequency (IF) signal. Optionally, the third signal is associated with a high-order component (greater than or equal to 2nd order, such as a 2nd order component, a 3rd order component, a 4th order component, or other higher order components) obtained after intermodulation or intermodulation processing of the first signal and the second signal.

[0154] For example, the AMP device can directly extract the high-order components obtained after the first signal and the second signal are subjected to intermodulation or intermodulation processing, for example, IM2(F 第一信号 -F 第二信号 )、IM2(F 第二信号 -F第一信号 )、IM3(2F 第一信号 -F 第二信号 ) and other high-order components as the third signal (such as IF signal).

[0155] For example, the AMP device obtains high-order components obtained after intermodulation or intermodulation processing of the first signal and the second signal, and performs frequency conversion processing on the high-order components obtained after intermodulation or intermodulation processing of the first signal and the second signal to obtain a third signal (such as an IF signal). Alternatively, the AMP device can perform frequency conversion processing on the high-order components obtained after intermodulation or intermodulation processing of the first signal and the second signal using an artificial intelligence (AI) model to obtain a third signal (such as an IF signal).

[0156] For example, the AMP device extracts the high-order component (ie, the third signal) after intermodulation or intermodulation, performs envelope detection on the third signal, and further processes the signal after envelope detection (eg, frequency multiplication) to obtain a local clock signal.

[0157] In some embodiments, the first signal is a single-frequency signal, or the first signal is a multi-frequency signal. For example, the first signal is a radio frequency signal (RF signal).

[0158] In some embodiments, the second signal is a single-frequency signal, or a multi-frequency signal, for example, a radio frequency signal (RF signal).

[0159] Optionally, in this embodiment of the present application, the frequency point may be a subcarrier (subcarrier / tone). That is, in this embodiment of the present application, the first signal and / or the second signal is a single subcarrier signal (single tone RF signal / single subcarrier RF signal), or the first signal and / or the second signal is a multiple tone RF signal / multiple subcarrier RF signal.

[0160] For example, both the first signal and the second signal are single-tone RF signals.

[0161] In some embodiments, the first signal is a narrowband signal having a bandwidth less than or equal to a preset value, and / or the second signal is a narrowband signal having a bandwidth less than or equal to a preset value. Optionally, the preset value is agreed upon by a protocol, or configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP), or determined based on information reported by an AMP device.

[0162] In some embodiments, the AMP device performs energy harvesting based on the first signal and / or the second signal.

[0163] In some embodiments, the first signal is a periodically transmitted signal. Optionally, the periodicity of transmitting the first signal may be agreed upon by a protocol, or may be configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP), or may be determined based on information reported by an AMP device.

[0164] In some embodiments, the second signal is a periodically transmitted signal. Optionally, the periodicity of transmitting the second signal may be agreed upon by a protocol, or may be configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP), or may be determined based on information reported by an AMP device.

[0165] In some embodiments, the first signal is a signal that is transmitted based on an event trigger. For example, when the originating device needs to communicate with the AMP device, the first signal is sent.

[0166] In some embodiments, the second signal is a signal that is transmitted based on an event trigger. For example, when the originating device needs to communicate with the AMP device, the second signal is sent.

[0167] In some embodiments, the first signal is a signal that is transmitted in conjunction with the second signal (ie, exists simultaneously).

[0168] In some embodiments, the first signal and / or the second signal is a continuously transmitted signal.

[0169] In some embodiments, the center frequency of the first signal is different from the center frequency of the second signal; and / or the center frequency of the frequency domain resources used for transmission of the first signal is different from the center frequency of the frequency domain resources used for transmission of the second signal.

[0170] In some embodiments, the candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, bandwidth part (Band Width Part, BWP), aggregation / aggregation / binding of multiple BWPs, aggregation / aggregation / binding of multiple subcarriers (subcarrier / tone), aggregation / aggregation / binding of multiple physical resource blocks (physical resource blocks, PRB).

[0171] In some embodiments, the frequency domain resource used for transmission of the first signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the first signal is a portion of a frequency domain resource in a candidate frequency domain resource. For example, the candidate frequency domain resource is a channel, and the frequency domain resource used for transmission of the first signal is a portion of subcarriers in a channel.

[0172] In some embodiments, the frequency domain resource used for transmission of the second signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the second signal is a portion of a candidate frequency domain resource. For example, the candidate frequency domain resource is a channel, and the frequency domain resource used for transmission of the second signal is one or more subcarriers in a channel.

[0173] In some embodiments, within the deployment frequency band corresponding to the AMP device, different candidate frequency domain resources do not overlap, or different candidate frequency domain resources partially overlap.

[0174] Specifically, AMP devices can be used in cellular systems or WiFi systems. Within the deployed operating frequency band of the AMP device, multiple channels or carriers can often be divided, and different channels may or may not overlap. The AMP device can transmit a first signal and a second signal on the same or two different candidate frequency domain resources within its operating frequency band. Correspondingly, the AMP device can receive a first signal and a second signal on the same or two different candidate frequency domain resources within its operating frequency band. Through intermodulation / intermodulation, a third signal (i.e., the IF signal corresponding to the first signal) is directly or indirectly obtained to determine the local clock.

[0175] For example, when an AMP device communicates using the 920-925 MHz RFID frequency band, and each channel has a bandwidth of 250 kHz, the 5 MHz (920-925 MHz) system bandwidth can be divided into 20 channels with a bandwidth of 250 kHz. In this case, the candidate frequency domain resources can be channels, meaning each channel serves as a candidate frequency domain resource. The AMP device can receive the first signal and the second signal on different channels.

[0176] In some embodiments, the candidate frequency domain resources used for transmission of the first signal are different from the candidate frequency domain resources used for transmission of the second signal, or the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal.

[0177] In some embodiments, when the candidate frequency domain resources used for the transmission of the first signal are different from the candidate frequency domain resources used for the transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include m first-category candidate frequency domain resources and n second-category candidate frequency domain resources, wherein the first-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal, and the second-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the second signal, and m and n are both positive integers.

[0178] For example, m=1, 2, 3,…,; and / or, n=1, 2, 3,…,.

[0179] For example, when using the RFID frequency band of 920-925 MHz for communication, the bandwidth of each channel is 250 kHz. Then, the system bandwidth of 5 MHz (920-925 MHz) can be divided into 20 channels with a bandwidth of 250 kHz. In this case, the candidate frequency domain resource can refer to each 250 kHz channel, that is, each channel is used as a candidate frequency domain resource, and the transmitter transmits the first signal and the second signal on two different channels respectively. For example, the same transmitter transmits two RF signals (i.e., the first signal and the second signal), or two transmitters transmit two RF signals (i.e., the first signal and the second signal) respectively.

[0180] In some embodiments, the first type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the first signal, thereby ensuring reliable transmission of the first signal.

[0181] In some embodiments, the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the second signal, thereby ensuring reliable transmission of the second signal.

[0182] Specifically, when using the RFID frequency band of 920-925 MHz for communication, the bandwidth of each channel is 250 kHz, and the system bandwidth of 5 MHz (920-925 MHz) can be divided into 20 channels (channel, CH) with a bandwidth of 250 kHz. As shown in FIG11 , the transmitting device uses CH13 to send a first signal to the AMP device, and uses CH3 to send a second signal to the AMP device.

[0183] In some embodiments, the interval between the center frequency point of the candidate frequency domain resources used for the transmission of the first signal and the center frequency point of the candidate frequency domain resources used for the transmission of the second signal is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

[0184] For example, when m=1 and n=1, the interval between the center frequency point of the candidate frequency domain resources used for the transmission of the first signal and the center frequency point of the candidate frequency domain resources used for the transmission of the second signal is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

[0185] In some embodiments, the frequency domain unit in the X1 frequency domain units is one of the following: candidate frequency domain resources, channel, system bandwidth, carrier, subcarrier, PRB, BWP, megahertz (MHz), kilohertz (kHz), hertz (Hz).

[0186] In some embodiments, the X1 frequency domain units are agreed upon by a protocol, or the X1 frequency domain units are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or the X1 frequency domain units are determined based on a clock frequency factor reported by an AMP device.

[0187] Specifically, the clock frequency factor reported by the AMP device can be the clock frequency factor expected by the AMP device. For example, if the expected clock frequency of the AMP device is 100 MHz, the clock frequency factor of 100 MHz can be 20, 25, 50, etc., then the difference between the two signals (i.e., the first signal and the second signal) can be the clock frequency factor of 100 MHz, for example, 20 MHz. In this way, a third signal of 20 MHz is first intermodulated or intermodulated, and then the third signal is multiplied.

[0188] For example, x1 frequency domain units are the clock frequency factors expected by the AMP device. Taking the aforementioned channel as an example, the bandwidth of each channel is 250 kHz. If the first information and the second signal use two adjacent channels and both use the middle position in the channel for signal transmission, the interval between the two signals is 250 kHz. The expected clock frequency of the AMP device is 2.5 GHz. In this case, the initial clock signal of 250 kHz can be multiplied to obtain a clock signal of 2.5 GHz.

[0189] In some embodiments, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources; wherein each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one of the first type candidate frequency domain resources and at least one of the second type candidate frequency domain resources.

[0190] For example, when m≥2 and n≥2, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources; wherein, each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one of the first type candidate frequency domain resources and at least one of the second type candidate frequency domain resources.

[0191] Specifically, when using the RFID frequency band of 920-925 MHz for communication, the bandwidth of each channel is 250 kHz, then the system bandwidth of 5 MHz (920-925 MHz) can be divided into 20 channels (CH) with a bandwidth of 250 kHz. As shown in FIG12 , the frequency domain resource that can be used to transmit the first signal is CH10 (that is, the first type of candidate frequency domain resource is CH10), and the frequency domain resource that can be used to transmit the second signal is CH9 (that is, the second type of candidate frequency domain resource is CH9), wherein CH9 that can be used to transmit the second signal and CH10 that can be used to transmit the first signal are two different bound channels.

[0192] In some embodiments, the multiple groups of bound candidate frequency domain resources are agreed upon by a protocol, or the multiple groups of bound candidate frequency domain resources are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or the multiple groups of bound candidate frequency domain resources are determined based on information reported by the AMP device.

[0193] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0194] In some embodiments, in each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources are adjacent to the second type of candidate frequency domain resources, or the first type of candidate frequency domain resources are not adjacent to the second type of candidate frequency domain resources.

[0195] For example, each group of bound candidate frequency domain resources includes two bound different channels, which may be two adjacent channels or two non-adjacent channels.

[0196] In some embodiments, in each group of the plurality of groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy a preset relationship. Optionally, the preset relationship may be agreed upon by a protocol, or configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP).

[0197] In some embodiments, in each group of the plurality of groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy the following formula 1: F1=F2+ΔF Formula 1

[0198] Wherein, F1 represents the first type of candidate frequency domain resources, F2 represents the second type of candidate frequency domain resources, and ΔF represents the frequency domain interval.

[0199] Alternatively, ΔF may be agreed upon by a protocol, or ΔF may be configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP).

[0200] In some embodiments, the m first-category candidate frequency domain resources are configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP). Optionally, the configuration granularity of the m first-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity. For example, when the configuration granularity of the m first-category candidate frequency domain resources is cell granularity, the m first-category candidate frequency domain resources are configured via broadcast.

[0201] In some embodiments, the m first-category candidate frequency domain resources are seized by a network device (such as an AP, a base station, or a TRP) and indicated to the AMP device.

[0202] In some embodiments, the m first-category candidate frequency domain resources are determined based on information reported by the AMP device.

[0203] In some embodiments, the m first-category candidate frequency domain resources are associated with at least one of the following: an identifier of the AMP device, and an identifier of the AMP group to which the AMP device belongs.

[0204] For example, assuming that the deployment frequency band corresponding to the AMP device contains W candidate frequency domain resources, the first type of candidate frequency domain resources is determined based on ID mod W, where ID is the identifier of the AMP device, or ID is the identifier of the AMP group to which the AMP device belongs, or ID is an identifier determined based on the identifier of the AMP device and the identifier of the AMP group to which the AMP device belongs (an identifier obtained by intercepting part of the fields of the identifier of the AMP device and the identifier of the AMP group to which the AMP device belongs).

[0205] In some embodiments, the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

[0206] For example, the first type of candidate frequency domain resource is a channel, and the frequency domain resource that can be used to transmit the first signal is 1 subcarrier / tone. For example, the frequency domain resource that can be used to transmit the first signal can be located at the upper side, middle side, lower side, or a position agreed upon by the protocol, etc.

[0207] In some embodiments, when the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0208] In some embodiments, the n second-category candidate frequency domain resources are agreed upon by a protocol.

[0209] In some embodiments, the n second-category candidate frequency domain resources are configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP). Optionally, the configuration granularity of the n second-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity. For example, when the configuration granularity of the n second-category candidate frequency domain resources is cell granularity, the n second-category candidate frequency domain resources are configured via broadcast.

[0210] In some embodiments, the n second-category candidate frequency domain resources are determined based on information reported by the AMP device.

[0211] In some embodiments, the n second-category candidate frequency domain resources are seized by a network device and indicated to the AMP device.

[0212] In some embodiments, the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

[0213] For example, the second type of candidate frequency domain resources is a channel, and the frequency domain resource that can be used to transmit the second signal is one subcarrier / tone. For example, the frequency domain resource that can be used to transmit the second signal can be located at the upper side, middle side, lower side, or a position agreed upon by the protocol, etc.

[0214] In some embodiments, when the frequency domain resources that can be used to transmit the second signal in the second category of candidate frequency domain resources are configured by a network device, the configuration granularity of the frequency domain resources that can be used to transmit the second signal in the second category of candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity. For example, when the configuration granularity of the frequency domain resources that can be used to transmit the second signal in the second category of candidate frequency domain resources is cell granularity, the frequency domain resources that can be used to transmit the second signal in the second category of candidate frequency domain resources are configured by broadcast.

[0215] In some embodiments, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0216] In some embodiments, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0217] For example, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0218] For another example, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0219] For another example, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0220] For another example, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0221] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, the different AMP devices transmit the first signal using frequency division multiplexing (FDM).

[0222] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using FDM.

[0223] In some embodiments, when the candidate frequency domain resources used for transmitting the first signal are the same as the candidate frequency domain resources used for transmitting the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include s third-category candidate frequency domain resources, where the third-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal and the second signal, and s is a positive integer. For example, s=1, 2, 3, ...,.

[0224] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different from the frequency domain resources that can be used to transmit the second signal.

[0225] In some embodiments, the interval between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is greater than or equal to X2 frequency domain units, where X2 is a positive integer.

[0226] In some embodiments, the frequency domain unit in the X2 frequency domain units is one of the following: channel, system bandwidth, carrier, subcarrier, PRB, BWP, MHz, kHz, Hz.

[0227] In some embodiments, the X2 frequency domain units are agreed upon by a protocol, or the X2 frequency domain units are configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP), or the X2 frequency domain units are determined based on a clock frequency factor reported by an AMP device. Specifically, the clock frequency factor reported by the AMP device may be a clock frequency factor expected by the AMP device.

[0228] In some embodiments, guard intervals are present on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal, wherein radio frequency signals cannot be transmitted in the guard intervals. Optionally, the guard interval can be the X2 frequency domain units, or the guard interval can be less than the X2 frequency domain units. This can prevent interference with the transmission of the first signal from the transmission of other radio frequency signals, thereby ensuring reliable transmission of the first signal.

[0229] In some embodiments, guard intervals are present on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal, wherein radio frequency signals cannot be transmitted in the guard intervals. Optionally, the guard interval can be the X2 frequency domain units, or the guard interval can be less than the X2 frequency domain units. This can prevent interference with the transmission of the second signal from the transmission of other radio frequency signals, thereby ensuring reliable transmission of the second signal.

[0230] In some embodiments, the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are of the same size, or the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are of different sizes. This allows for more flexible setting of the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal.

[0231] In some embodiments, the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are of the same size, or the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are of different sizes. This allows for more flexible setting of the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal.

[0232] Specifically, when using the RFID frequency band of 920-925 MHz for communication, the bandwidth of each channel is 250 kHz, and the system bandwidth of 5 MHz (920-925 MHz) can be divided into 20 channels (CH) with a bandwidth of 250 kHz. As shown in FIG13 , the candidate frequency domain resource that can be used to transmit the first signal and the second signal is CH10 (that is, the third category of candidate frequency domain resources is CH10). In CH10, there is a protection interval (GAP) between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal.

[0233] In some embodiments, the third type of candidate frequency domain resources includes multiple groups of bundled frequency domain resources;

[0234] Each group of bound frequency domain resources in the multiple groups of bound frequency domain resources includes at least one frequency domain resource that can be used to transmit the first signal and at least one frequency domain resource that can be used to transmit the second signal.

[0235] In some embodiments, the multiple groups of bound frequency domain resources are agreed upon by a protocol, or the multiple groups of bound frequency domain resources are configured by a network device, or the multiple groups of bound frequency domain resources are determined based on information reported by the AMP device, or the multiple groups of bound frequency domain resources are associated with at least one of the following: an identifier of the AMP device, an identifier of the AMP group to which the AMP device belongs.

[0236] For example, assuming that the third category of candidate frequency domain resources includes Q frequency domain resources, multiple groups of bound frequency domain resources are determined based on ID mod Q, where ID is the identifier of the AMP device, or ID is the identifier of the AMP group to which the AMP device belongs, or ID is an identifier determined based on the identifier of the AMP device and the identifier of the AMP group to which the AMP device belongs (an identifier obtained by intercepting partial fields of the identifier of the AMP device and the identifier of the AMP group to which the AMP device belongs).

[0237] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0238] In some embodiments, the s third-category candidate frequency domain resources are configured (semi-statically or dynamically) by a network device (such as an AP, a base station, or a TRP).

[0239] In some embodiments, the s third-category candidate frequency domain resources are determined based on information reported by the AMP device.

[0240] In some embodiments, the s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device.

[0241] In some embodiments, when the s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device, the third-category candidate frequency domain resources are successfully seized when there is no interference between the frequency domain resources that can be used to transmit the first signal, the frequency domain resources that can be used to transmit the second signal, the frequency domain resources that can be used to transmit the first signal, and the frequency domain resources that can be used to transmit the second signal.

[0242] In some embodiments, when the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the network device may preempt the resources through a scheme similar to a transmission opportunity (TXOP) mechanism.

[0243] In some embodiments, when the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources and the adjacent candidate frequency domain resources are all preempted by the network device, or only the third-category candidate frequency domain resources are preempted by the network device.

[0244] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

[0245] For example, the third type of candidate frequency domain resource is a channel, and the frequency domain resource that can be used to transmit the first signal is 1 subcarrier / tone. For example, the frequency domain resource that can be used to transmit the first signal can be located at the upper side, middle side, lower side, or a position agreed upon by the protocol, etc.

[0246] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured (semi-statically or dynamically) by a network device (such as an AP or a base station or a TRP), or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

[0247] For example, the third type of candidate frequency domain resource is a channel, and the frequency domain resource that can be used to transmit the second signal is one subcarrier / tone. For example, the frequency domain resource that can be used to transmit the second signal can be located at the upper side, middle side, lower side, or a position agreed upon by the protocol, etc.

[0248] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are located before the frequency domain resources that can be used to transmit the second signal, or, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are located after the frequency domain resources that can be used to transmit the second signal.

[0249] In some embodiments, when the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity. For example, when the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal is cell granularity, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by broadcast.

[0250] In some embodiments, when the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are configured by a network device, the configuration granularity of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity. For example, when the configuration granularity of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is cell granularity, the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are configured by broadcast.

[0251] In some embodiments, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0252] In some embodiments, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0253] For example, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0254] For another example, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0255] For another example, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0256] For another example, different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and different AMP devices share candidate frequency domain resources that can be used to transmit the second signal.

[0257] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, the different AMP devices transmit the first signal using FDM.

[0258] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using FDM.

[0259] Therefore, in an embodiment of the present application, the AMP device can determine the local clock based on the third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal. The AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a numerically controlled oscillator, etc.) to generate an accurate local clock. It can determine the local clock based on the high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device.

[0260] That is, in an embodiment of the present application, the AMP device receives two single-tone RF signals of different frequencies, performs intermodulation / intermodulation on the two signals, and performs envelope detection based on the frequency components of the intermodulation / intermodulation, such as IM2 (F1-F2), to directly or indirectly obtain a local clock. Based on the solution in the embodiment of the present application, the AMP device does not need to use a high-precision oscillator (such as a crystal oscillator, a digitally controlled oscillator, etc.) to generate an accurate local clock. The local clock can be determined based on the high-order components obtained by intermodulation or intermodulation of signals of different frequencies, which helps to reduce the power consumption and cost of the AMP device.

[0261] The above text, in combination with Figures 10 to 13, describes in detail the method embodiment of the present application. The following text, in combination with Figures 14 to 18, 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.

[0262] FIG14 shows a schematic block diagram of an environmental energy AMP device 300 according to an embodiment of the present application. As shown in FIG14 , the AMP device 300 includes:

[0263] The communication unit 310 is configured to receive a first signal and a second signal;

[0264] The processing unit 320 is configured to perform intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal;

[0265] The processing unit 320 is further configured to determine a local clock according to the third signal.

[0266] In some embodiments, the center frequency of the first signal is different from the center frequency of the second signal; and / or the center frequency of the frequency domain resources used for transmission of the first signal is different from the center frequency of the frequency domain resources used for transmission of the second signal.

[0267] In some embodiments, the frequency domain resource used for transmission of the first signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the first signal is a portion of frequency domain resources in a candidate frequency domain resource; and / or,

[0268] The frequency domain resource used for transmission of the second signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the second signal is a part of the frequency domain resources in a candidate frequency domain resource.

[0269] In some embodiments, the candidate frequency domain resources used for transmission of the first signal are different from the candidate frequency domain resources used for transmission of the second signal, or the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal.

[0270] In some embodiments, when the candidate frequency domain resources used for the transmission of the first signal are different from the candidate frequency domain resources used for the transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include m first-category candidate frequency domain resources and n second-category candidate frequency domain resources, wherein the first-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal, and the second-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the second signal, and m and n are both positive integers.

[0271] In some embodiments, the first type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the first signal, and / or, the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the second signal.

[0272] In some embodiments, when m=1 and n=1, the interval between the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

[0273] In some embodiments, the frequency domain unit in the X1 frequency domain units is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block PRB, bandwidth part BWP, megahertz MHz, kilohertz kHz, hertz Hz.

[0274] In some embodiments, the X1 frequency domain units are agreed upon by a protocol, or the X1 frequency domain units are configured by a network device, or the X1 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

[0275] In some embodiments, when m=1 and n=1, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device are adjacent to each other.

[0276] In some embodiments, when m≥2 and n≥2, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources;

[0277] Each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one first-category candidate frequency domain resource and at least one second-category candidate frequency domain resource.

[0278] In some embodiments, the multiple groups of bound candidate frequency domain resources are agreed upon by a protocol, or the multiple groups of bound candidate frequency domain resources are configured by a network device, or the multiple groups of bound candidate frequency domain resources are determined based on information reported by the AMP device.

[0279] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0280] In some embodiments, in each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources are adjacent to the second type of candidate frequency domain resources, or the first type of candidate frequency domain resources are not adjacent to the second type of candidate frequency domain resources.

[0281] In some embodiments, in each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy a preset relationship.

[0282] In some embodiments, in each group of the plurality of groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy the following formula: F1=F2+ΔF;

[0283] Wherein, F1 represents the first type of candidate frequency domain resources, F2 represents the second type of candidate frequency domain resources, and ΔF represents the frequency domain interval.

[0284] In some embodiments, the m first-category candidate frequency domain resources are agreed upon by a protocol; or,

[0285] The m first-category candidate frequency domain resources are configured by a network device; or,

[0286] The m first-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device; or,

[0287] The m first-category candidate frequency domain resources are determined based on information reported by the AMP device.

[0288] In some embodiments, when the m first-category candidate frequency domain resources are configured by a network device, a configuration granularity of the m first-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0289] In some embodiments, the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

[0290] In some embodiments, when the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0291] In some embodiments, the n second-category candidate frequency domain resources are agreed upon by a protocol; or,

[0292] The n second-category candidate frequency domain resources are configured by the network device; or,

[0293] The n second-category candidate frequency domain resources are determined based on information reported by the AMP device; or,

[0294] The n second-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device.

[0295] In some embodiments, when the n second-category candidate frequency domain resources are configured by a network device, a configuration granularity of the n second-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0296] In some embodiments, the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

[0297] In some embodiments, when the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0298] In some embodiments, when the candidate frequency domain resources used for the transmission of the first signal are the same as the candidate frequency domain resources used for the transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include s third-category candidate frequency domain resources, wherein the third-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal and the second signal, and s is a positive integer.

[0299] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different from the frequency domain resources that can be used to transmit the second signal.

[0300] In some embodiments, the interval between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is greater than or equal to X2 frequency domain units, where X2 is a positive integer.

[0301] In some embodiments, the frequency domain unit in the X2 frequency domain units is one of the following: channel, system bandwidth, carrier, subcarrier, PRB, BWP, MHz, kHz, Hz.

[0302] In some embodiments, the X2 frequency domain units are agreed upon by a protocol, or the X2 frequency domain units are configured by a network device, or the X2 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

[0303] In some embodiments, guard intervals are present on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources, and / or guard intervals are present on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources;

[0304] The radio frequency signal cannot be transmitted in the guard interval.

[0305] In some embodiments, the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are the same, or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are different; and / or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are the same, or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are different.

[0306] In some embodiments, the third type of candidate frequency domain resources includes multiple groups of bundled frequency domain resources;

[0307] Each group of bound frequency domain resources in the multiple groups of bound frequency domain resources includes at least one frequency domain resource that can be used to transmit the first signal and at least one frequency domain resource that can be used to transmit the second signal.

[0308] In some embodiments, the multiple groups of bound frequency domain resources are agreed upon by a protocol, or the multiple groups of bound frequency domain resources are configured by a network device, or the multiple groups of bound frequency domain resources are determined based on information reported by the AMP device, or the multiple groups of bound frequency domain resources are associated with at least one of the following: an identifier of the AMP device, an identifier of the AMP group to which the AMP device belongs.

[0309] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0310] In some embodiments, the s third type candidate frequency domain resources are configured by a network device; or,

[0311] The s third-category candidate frequency domain resources are determined based on information reported by the AMP device; or,

[0312] The s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device.

[0313] In some embodiments, when the s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device, the third-category candidate frequency domain resources are successfully seized when there is no interference between the frequency domain resources that can be used to transmit the first signal, the frequency domain resources that can be used to transmit the second signal, the frequency domain resources that can be used to transmit the first signal, and the frequency domain resources that can be used to transmit the second signal.

[0314] In some embodiments, when the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources and the adjacent candidate frequency domain resources are all preempted by the network device, or only the third-category candidate frequency domain resources are preempted by the network device.

[0315] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device; and / or,

[0316] The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by the network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by the protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are determined based on the information reported by the AMP device.

[0317] In some embodiments, when the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, cell granularity; and / or,

[0318] When the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by the network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0319] In some embodiments, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal; or,

[0320] Different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0321] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, the different AMP devices transmit the first signal using frequency division multiplexing (FDM); and / or,

[0322] In the case that different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using an FDM manner.

[0323] In some embodiments, within the deployment frequency band corresponding to the AMP device, different candidate frequency domain resources do not overlap, or different candidate frequency domain resources partially overlap.

[0324] In some embodiments, the candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / aggregation / bundling of multiple BWPs, aggregation / aggregation / bundling of multiple subcarriers, aggregation / aggregation / bundling of multiple PRBs.

[0325] In some embodiments, the first signal is a signal that is periodically transmitted, or the first signal is a signal that is transmitted based on an event trigger, or the first signal is a signal that is transmitted in conjunction with the second signal, or the first signal is a signal that is continuously transmitted; and / or,

[0326] The second signal is a signal that is transmitted periodically, or the second signal is a signal that is transmitted based on an event trigger, or the second signal is a signal that is transmitted in conjunction with the first signal, or the second signal is a signal that is transmitted continuously.

[0327] In some embodiments, the first signal is a single-frequency signal, and / or the second signal is a single-frequency signal.

[0328] In some embodiments, the first signal and / or the second signal is a narrowband signal with a bandwidth less than or equal to a preset value.

[0329] In some embodiments, the processing unit 320 is further configured to perform energy harvesting based on the first signal and / or the second signal.

[0330] In some embodiments, the third signal is associated with a high-order component obtained after intermodulation or intermodulation processing of the first signal and the second signal.

[0331] In some embodiments, the first signal and the second signal are sent by the same device, or the first signal and the second signal are sent by different devices.

[0332] In some embodiments, the processing unit 320 is specifically configured to:

[0333] Envelope detection is performed on the third signal, and the AMP device acquires or determines a local clock based on the signal after envelope detection.

[0334] 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.

[0335] It should be understood that the AMP device 300 according to the embodiment of the present application may correspond to the AMP device in the method embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the AMP device 300 are respectively for realizing the corresponding processes of the AMP device in the method 200 shown in Figure 10. For the sake of brevity, they will not be repeated here.

[0336] FIG15 shows a schematic block diagram of a communication device 400 according to an embodiment of the present application. As shown in FIG15 , the communication device 400 is a first communication device, and the communication device 400 includes:

[0337] The communication unit 410 is configured to send the first signal and / or the second signal to the environmental energy AMP device;

[0338] The third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock of the AMP device;

[0339] In the case where the first communication device only sends the first signal, the second signal is sent to the AMP device by the second communication device triggered by the first communication device; or, in the case where the first communication device only sends the second signal, the second signal is sent to the AMP device after being triggered by the second communication device.

[0340] In some embodiments, the center frequency of the first signal is different from the center frequency of the second signal; and / or the center frequency of the frequency domain resources used for transmission of the first signal is different from the center frequency of the frequency domain resources used for transmission of the second signal.

[0341] In some embodiments, the frequency domain resource used for transmission of the first signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the first signal is a portion of frequency domain resources in a candidate frequency domain resource; and / or,

[0342] The frequency domain resource used for transmission of the second signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the second signal is a part of the frequency domain resources in a candidate frequency domain resource.

[0343] In some embodiments, the candidate frequency domain resources used for transmission of the first signal are different from the candidate frequency domain resources used for transmission of the second signal, or the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal.

[0344] In some embodiments, when the candidate frequency domain resources used for the transmission of the first signal are different from the candidate frequency domain resources used for the transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include m first-category candidate frequency domain resources and n second-category candidate frequency domain resources, wherein the first-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal, and the second-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the second signal, and m and n are both positive integers.

[0345] In some embodiments, the first type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the first signal, and / or, the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the second signal.

[0346] In some embodiments, when m=1 and n=1, the interval between the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

[0347] In some embodiments, the frequency domain unit in the X1 frequency domain units is one of the following: candidate frequency domain resource, channel, system bandwidth, carrier, subcarrier, physical resource block PRB, bandwidth part BWP, megahertz MHz, kilohertz kHz, hertz Hz.

[0348] In some embodiments, the X1 frequency domain units are agreed upon by a protocol, or the X1 frequency domain units are configured by a network device, or the X1 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

[0349] In some embodiments, when m=1 and n=1, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device are adjacent to each other.

[0350] In some embodiments, when m≥2 and n≥2, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources;

[0351] Each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one first-category candidate frequency domain resource and at least one second-category candidate frequency domain resource.

[0352] In some embodiments, the multiple groups of bound candidate frequency domain resources are agreed upon by a protocol, or the multiple groups of bound candidate frequency domain resources are configured by a network device, or the multiple groups of bound candidate frequency domain resources are determined based on information reported by the AMP device.

[0353] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0354] In some embodiments, in each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources are adjacent to the second type of candidate frequency domain resources, or the first type of candidate frequency domain resources are not adjacent to the second type of candidate frequency domain resources.

[0355] In some embodiments, in each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy a preset relationship.

[0356] In some embodiments, in each group of the plurality of groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy the following formula: F1=F2+ΔF;

[0357] Wherein, F1 represents the first type of candidate frequency domain resources, F2 represents the second type of candidate frequency domain resources, and ΔF represents the frequency domain interval.

[0358] In some embodiments, the m first-category candidate frequency domain resources are agreed upon by a protocol; or,

[0359] The m first-category candidate frequency domain resources are configured by a network device; or,

[0360] The m first-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device; or,

[0361] The m first-category candidate frequency domain resources are determined based on information reported by the AMP device.

[0362] In some embodiments, when the m first-category candidate frequency domain resources are configured by a network device, a configuration granularity of the m first-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0363] In some embodiments, the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

[0364] In some embodiments, when the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0365] In some embodiments, the n second-category candidate frequency domain resources are agreed upon by a protocol; or,

[0366] The n second-category candidate frequency domain resources are configured by the network device; or,

[0367] The n second-category candidate frequency domain resources are determined based on information reported by the AMP device; or,

[0368] The n second-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device.

[0369] In some embodiments, when the n second-category candidate frequency domain resources are configured by a network device, a configuration granularity of the n second-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0370] In some embodiments, the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

[0371] In some embodiments, when the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0372] In some embodiments, when the candidate frequency domain resources used for the transmission of the first signal are the same as the candidate frequency domain resources used for the transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include s third-category candidate frequency domain resources, wherein the third-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal and the second signal, and s is a positive integer.

[0373] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different from the frequency domain resources that can be used to transmit the second signal.

[0374] In some embodiments, the interval between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is greater than or equal to X2 frequency domain units, where X2 is a positive integer.

[0375] In some embodiments, the frequency domain unit in the X2 frequency domain units is one of the following: channel, system bandwidth, carrier, subcarrier, PRB, BWP, MHz, kHz, Hz.

[0376] In some embodiments, the X2 frequency domain units are agreed upon by a protocol, or the X2 frequency domain units are configured by a network device, or the X2 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

[0377] In some embodiments, guard intervals are present on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources, and / or guard intervals are present on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources;

[0378] The radio frequency signal cannot be transmitted in the guard interval.

[0379] In some embodiments, the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are the same, or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the first signal in the third category of candidate frequency domain resources are different; and / or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are the same, or the sizes of the guard intervals on both sides of the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources are different.

[0380] In some embodiments, the third type of candidate frequency domain resources includes multiple groups of bundled frequency domain resources;

[0381] Each group of bound frequency domain resources in the multiple groups of bound frequency domain resources includes at least one frequency domain resource that can be used to transmit the first signal and at least one frequency domain resource that can be used to transmit the second signal.

[0382] In some embodiments, the multiple groups of bound frequency domain resources are agreed upon by a protocol, or the multiple groups of bound frequency domain resources are configured by a network device, or the multiple groups of bound frequency domain resources are determined based on information reported by the AMP device, or the multiple groups of bound frequency domain resources are associated with at least one of the following: an identifier of the AMP device, an identifier of the AMP group to which the AMP device belongs.

[0383] In some embodiments, when the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

[0384] In some embodiments, the s third type candidate frequency domain resources are configured by a network device; or,

[0385] The s third-category candidate frequency domain resources are determined based on information reported by the AMP device; or,

[0386] The s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device.

[0387] In some embodiments, when the s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device, the third-category candidate frequency domain resources are successfully seized when there is no interference between the frequency domain resources that can be used to transmit the first signal, the frequency domain resources that can be used to transmit the second signal, the frequency domain resources that can be used to transmit the first signal, and the frequency domain resources that can be used to transmit the second signal.

[0388] In some embodiments, when the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources and the adjacent candidate frequency domain resources are all preempted by the network device, or only the third-category candidate frequency domain resources are preempted by the network device.

[0389] In some embodiments, the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device; and / or,

[0390] The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by the network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by the protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are determined based on the information reported by the AMP device.

[0391] In some embodiments, when the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, cell granularity; and / or,

[0392] When the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by the network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

[0393] In some embodiments, different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal; or,

[0394] Different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

[0395] In some embodiments, when different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, the different AMP devices transmit the first signal using frequency division multiplexing (FDM); and / or,

[0396] In the case that different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using an FDM manner.

[0397] In some embodiments, within the deployment frequency band corresponding to the AMP device, different candidate frequency domain resources do not overlap, or different candidate frequency domain resources partially overlap.

[0398] In some embodiments, the candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / aggregation / bundling of multiple BWPs, aggregation / aggregation / bundling of multiple subcarriers, aggregation / aggregation / bundling of multiple PRBs.

[0399] In some embodiments, the first signal is a signal that is periodically transmitted, or the first signal is a signal that is transmitted based on an event trigger, or the first signal is a signal that is transmitted in conjunction with the second signal, or the first signal is a signal that is continuously transmitted; and / or,

[0400] The second signal is a signal that is transmitted periodically, or the second signal is a signal that is transmitted based on an event trigger, or the second signal is a signal that is transmitted in conjunction with the first signal, or the second signal is a signal that is transmitted continuously.

[0401] In some embodiments, the first signal is a single-frequency signal, and / or the second signal is a single-frequency signal.

[0402] In some embodiments, the first signal and / or the second signal is a narrowband signal with a bandwidth less than or equal to a preset value.

[0403] In some embodiments, the first signal and / or the second signal is used by the AMP device to harvest energy.

[0404] In some embodiments, the third signal is associated with a high-order component obtained after intermodulation or intermodulation processing of the first signal and the second signal.

[0405] In some embodiments, the first signal and the second signal are sent by the same device, or the first signal and the second signal are sent by different devices.

[0406] In some embodiments, the third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock, including:

[0407] The signal obtained after envelope detection of the third signal is used to obtain or determine the local clock.

[0408] In some embodiments, the first communication device is one of the following: an access point AP, a station STA, a base station, a terminal device, or a transmitting and receiving point TRP.

[0409] 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.

[0410] It should be understood that the communication device 400 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 400 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.

[0411] Figure 16 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 16 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.

[0412] In some embodiments, as shown in FIG16 , 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.

[0413] The memory 520 may be a separate device independent of the processor 510 , or may be integrated into the processor 510 .

[0414] In some embodiments, as shown in FIG16 , 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.

[0415] 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.

[0416] In some embodiments, the processor 510 may implement the functionality of a processing unit in the AMP device 300 , or the processor 510 may implement the functionality of a processing unit in the communication device 400 , which will not be described in detail here for the sake of brevity.

[0417] In some embodiments, the transceiver 530 may implement the functionality of the communication unit in the AMP device 300 , which will not be described in detail here for the sake of brevity.

[0418] In some embodiments, the transceiver 530 may implement the functionality of a communication unit in the communication device 400 , which will not be described in detail here for the sake of brevity.

[0419] In some embodiments, the communication device 500 may specifically be the communication device 400 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.

[0420] In some embodiments, the communication device 500 may specifically be the AMP device 300 of the embodiment of the present application, and the communication device 500 may implement the corresponding processes implemented by the AMP device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0421] Figure 17 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 600 shown in Figure 17 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.

[0422] In some embodiments, as shown in FIG17 , the apparatus 600 may further include a memory 620. 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.

[0423] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0424] In some embodiments, the processor 610 may implement the functionality of a processing unit in the AMP device 300 , or the processor 610 may implement the functionality of a processing unit in the communication device 400 , which will not be described in detail here for the sake of brevity.

[0425] 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.

[0426] In some embodiments, the input interface 630 may implement the functionality of the communication unit in the AMP device 300 , or the input interface 630 may implement the functionality of the communication unit in the communication device 400 .

[0427] 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.

[0428] In some embodiments, the output interface 640 may implement the functionality of the communication unit in the AMP device 300 , or the output interface 640 may implement the functionality of the communication unit in the communication device 400 .

[0429] In some embodiments, the apparatus may be applied to the communication device 400 in the embodiments of the present application, and the apparatus may 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 described in detail here.

[0430] In some embodiments, the apparatus can be applied to the AMP device 300 in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the AMP device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0431] 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.

[0432] FIG18 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in FIG18 , the communication system 700 includes an AMP device 710 and a communication device 720 .

[0433] Among them, the AMP device 710 can be used to implement the corresponding functions implemented by the AMP device in the above method, and the 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 will not be repeated here.

[0434] 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.

[0435] 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.

[0436] 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.

[0437] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0438] In some embodiments, the computer-readable storage medium can be applied to the 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.

[0439] In some embodiments, the computer-readable storage medium can be applied to the AMP device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the AMP device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0440] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0441] In some embodiments, the computer program product can be applied to the 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.

[0442] In some embodiments, the computer program product can be applied to the AMP device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the AMP device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0443] The embodiment of the present application also provides a computer program.

[0444] In some embodiments, the computer program can be applied to the 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.

[0445] In some embodiments, the computer program can be applied to the AMP 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 AMP device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0446] 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.

[0447] 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.

[0448] 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.

[0449] 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.

[0450] 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.

[0451] 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.

[0452] 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 environmental energy AMP device receives the first signal and the second signal; The AMP device performs intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal; The AMP device determines a local clock according to the third signal.

2. The method according to claim 1, characterized in that The center frequency of the first signal is different from the center frequency of the second signal; and / or the center frequency of the frequency domain resources used for transmission of the first signal is different from the center frequency of the frequency domain resources used for transmission of the second signal.

3. The method according to claim 1 or 2, characterized in that The frequency domain resource used for transmission of the first signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the first signal is a partial frequency domain resource in a candidate frequency domain resource; and / or, The frequency domain resource used for transmission of the second signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the second signal is a part of frequency domain resources in a candidate frequency domain resource.

4. The method according to claim 3, characterized in that The candidate frequency domain resources used for transmission of the first signal are different from the candidate frequency domain resources used for transmission of the second signal, or the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal.

5. The method according to claim 4, characterized in that When the candidate frequency domain resources used for transmitting the first signal are different from the candidate frequency domain resources used for transmitting the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include m first-category candidate frequency domain resources and n second-category candidate frequency domain resources, wherein the first-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal, and the second-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the second signal, and m and n are both positive integers.

6. The method according to claim 5, characterized in that The first type of candidate frequency domain resources within the deployed frequency band corresponding to the AMP device cannot be used to transmit signals other than the first signal, and / or the second type of candidate frequency domain resources within the deployed frequency band corresponding to the AMP device cannot be used to transmit signals other than the second signal.

7. The method according to claim 5 or 6, characterized in that When m=1 and n=1, the interval between the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

8. The method according to claim 7, characterized in that The frequency domain unit in the X1 frequency domain units is one of the following: candidate frequency domain resources, channel, system bandwidth, carrier, subcarrier, physical resource block PRB, bandwidth part BWP, megahertz MHz, kilohertz kHz, hertz Hz.

9. The method according to claim 7 or 8, characterized in that The X1 frequency domain units are agreed upon by a protocol, or the X1 frequency domain units are configured by a network device, or the X1 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

10. The method according to claim 5 or 6, characterized in that: When m=1 and n=1, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device are adjacent to each other.

11. The method according to claim 5 or 6, characterized in that: When m≥2 and n≥2, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources; Each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one first-category candidate frequency domain resource and at least one second-category candidate frequency domain resource.

12. The method according to claim 11, characterized in that The multiple groups of bound candidate frequency domain resources are agreed upon by a protocol, or the multiple groups of bound candidate frequency domain resources are configured by a network device, or the multiple groups of bound candidate frequency domain resources are determined based on information reported by the AMP device.

13. The method according to claim 12, characterized in that In the case where the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

14. The method according to any one of claims 11 to 13, characterized in that In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources are adjacent to the second type of candidate frequency domain resources, or the first type of candidate frequency domain resources are not adjacent to the second type of candidate frequency domain resources.

15. The method according to any one of claims 11 to 14, characterized in that In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy a preset relationship.

16. The method according to claim 15, characterized in that In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy the following formula: F1=F2+ΔF; Among them, F1 represents the first type of candidate frequency domain resources, F2 represents the second type of candidate frequency domain resources, and ΔF represents the frequency domain interval.

17. The method according to any one of claims 5 to 16, characterized in that The m first-category candidate frequency domain resources are agreed upon by a protocol; or, The m first-category candidate frequency domain resources are configured by a network device; or, The m first-category candidate frequency domain resources are seized by the network device and indicated to the AMP device; or, The m first-category candidate frequency domain resources are determined based on information reported by the AMP device.

18. The method according to claim 17, characterized in that In the case where the m first-category candidate frequency domain resources are configured by a network device, a configuration granularity of the m first-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

19. The method according to any one of claims 5 to 18, characterized in that The frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

20. The method of claim 19, wherein: When the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

21. The method according to any one of claims 5 to 20, characterized in that The n second-category candidate frequency domain resources are agreed upon by a protocol; or, The n second-category candidate frequency domain resources are configured by a network device; or, The n second-category candidate frequency domain resources are determined based on information reported by the AMP device; or, The n second-category candidate frequency domain resources are seized by the network device and indicated to the AMP device.

22. The method according to claim 21, characterized in that In the case where the n second-category candidate frequency domain resources are configured by a network device, a configuration granularity of the n second-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

23. The method according to any one of claims 5 to 22, characterized in that The frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

24. The method of claim 23, wherein: When the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

25. The method of claim 4, wherein: When the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include s third-category candidate frequency domain resources, wherein the third-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal and the second signal, and s is a positive integer.

26. The method of claim 25, wherein: The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different from the frequency domain resources that can be used to transmit the second signal.

27. The method according to claim 25 or 26, characterized in that The interval between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is greater than or equal to X2 frequency domain units, where X2 is a positive integer.

28. The method of claim 27, wherein: The frequency domain unit in the X2 frequency domain units is one of the following: channel, system bandwidth, carrier, subcarrier, PRB, BWP, MHz, kHz, Hz.

29. The method according to claim 27 or 28, characterized in that The X2 frequency domain units are agreed upon by a protocol, or the X2 frequency domain units are configured by a network device, or the X2 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

30. The method according to any one of claims 25 to 29, characterized in that There are guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal, and / or there are guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal; Wherein, radio frequency signals cannot be transmitted in the protection interval.

31. The method of claim 30, wherein: The sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are the same, or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different; and / or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are the same, or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are different.

32. The method according to any one of claims 25 to 31, characterized in that The third type of candidate frequency domain resources includes multiple groups of bound frequency domain resources; Each group of bound frequency domain resources in the multiple groups of bound frequency domain resources includes at least one frequency domain resource that can be used to transmit the first signal and at least one frequency domain resource that can be used to transmit the second signal.

33. The method of claim 32, wherein: The multiple groups of bound frequency domain resources are agreed upon by a protocol, or the multiple groups of bound frequency domain resources are configured by a network device, or the multiple groups of bound frequency domain resources are determined based on information reported by the AMP device, or the multiple groups of bound frequency domain resources are associated with at least one of the following: an identifier of the AMP device, an identifier of the AMP group to which the AMP device belongs.

34. The method of claim 33, wherein: In the case where the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

35. The method according to any one of claims 25 to 34, characterized in that The s third-category candidate frequency domain resources are configured by a network device; or, The s third-category candidate frequency domain resources are determined based on information reported by the AMP device; or, The s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device.

36. The method of claim 35, wherein: In the case where the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources are successfully preempted when there is no interference between the frequency domain resources that can be used to transmit the first signal, the frequency domain resources that can be used to transmit the second signal, the frequency domain resources that can be used to transmit the first signal, and the frequency domain resources that can be used to transmit the second signal.

37. The method according to claim 35 or 36, characterized in that In the case where the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources and the adjacent candidate frequency domain resources are all preempted by the network device, or only the third-category candidate frequency domain resources are preempted by the network device.

38. The method according to any one of claims 25 to 37, characterized in that The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device; and / or, The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

39. The method of claim 38, wherein: In the case where the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, cell granularity; and / or, When the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

40. The method according to any one of claims 5 to 39, characterized in that Different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal; or, Different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

41. The method of claim 40, wherein: In the case where different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, different AMP devices Using frequency division multiplexing (FDM) to transmit the first signal; and / or, In the case that different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using FDM.

42. The method according to any one of claims 3 to 41, characterized in that In the deployment frequency band corresponding to the AMP device, different candidate frequency domain resources do not overlap, or different candidate frequency domain resources partially overlap.

43. The method according to any one of claims 3 to 42, characterized in that The candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / aggregation / binding of multiple BWPs, aggregation / aggregation / binding of multiple subcarriers, and aggregation / aggregation / binding of multiple PRBs.

44. The method according to any one of claims 1 to 43, characterized in that The first signal is a signal that is transmitted periodically, or the first signal is a signal that is transmitted based on an event trigger, or the first signal is a signal that is transmitted in conjunction with the second signal, or the first signal is a signal that is transmitted continuously; and / or, The second signal is a signal that is transmitted periodically, or the second signal is a signal that is transmitted based on an event trigger, or the second signal is a signal that is transmitted in conjunction with the first signal, or the second signal is a signal that is transmitted continuously.

45. The method according to any one of claims 1 to 44, characterized in that The first signal is a single-frequency signal, and / or the second signal is a single-frequency signal.

46. ​​The method according to any one of claims 1 to 45, characterized in that The first signal and / or the second signal is a narrowband signal with a bandwidth less than or equal to a preset value.

47. The method according to any one of claims 1 to 46, characterized in that The method further comprises: The AMP device harvests energy based on the first signal and / or the second signal.

48. The method according to any one of claims 1 to 47, characterized in that The third signal is associated with a high-order component obtained after the first signal and the second signal are subjected to intermodulation or intermodulation processing.

49. The method according to any one of claims 1 to 48, characterized in that The first signal and the second signal are sent by the same device, or the first signal and the second signal are sent by different devices.

50. The method according to any one of claims 1 to 49, characterized in that The AMP device determines a local clock according to the third signal, including: The AMP device performs envelope detection on the third signal, and the AMP device acquires or determines a local clock based on the signal after envelope detection.

51. A wireless communication method, characterized in that: include: The first communication device sends a first signal and / or a second signal to the ambient energy AMP device; The third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock of the AMP device; In which, when the first communication device only sends the first signal, the second signal is sent to the AMP device by the second communication device triggered by the first communication device; or, when the first communication device only sends the second signal, the second signal is sent to the AMP device after being triggered by the second communication device.

52. The method of claim 51, wherein: The center frequency of the first signal is different from the center frequency of the second signal; and / or the center frequency of the frequency domain resources used for transmission of the first signal is different from the center frequency of the frequency domain resources used for transmission of the second signal.

53. The method according to claim 51 or 52, characterized in that The frequency domain resource used for transmission of the first signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the first signal is a partial frequency domain resource in a candidate frequency domain resource; and / or, The frequency domain resource used for transmission of the second signal is a candidate frequency domain resource, or the frequency domain resource used for transmission of the second signal is a part of frequency domain resources in a candidate frequency domain resource.

54. The method of claim 53, wherein: The candidate frequency domain resources used for transmission of the first signal are different from the candidate frequency domain resources used for transmission of the second signal, or the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal.

55. The method of claim 54, wherein: When the candidate frequency domain resources used for transmitting the first signal are different from the candidate frequency domain resources used for transmitting the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include m first-category candidate frequency domain resources and n second-category candidate frequency domain resources, wherein the first-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal, and the second-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the second signal, and m and n are both positive integers.

56. The method of claim 55, wherein: The first type of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device cannot be used to transmit other signals other than the first signal signal, and / or, the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device cannot be used to transmit signals other than the second signal.

57. The method of claim 55 or 56, wherein: When m=1 and n=1, the interval between the first type of candidate frequency domain resources and the second type of candidate frequency domain resources within the deployment frequency band corresponding to the AMP device is greater than or equal to X1 frequency domain units, and / or the interval between the center frequency point of the first signal and the center frequency point of the second signal is greater than or equal to X1 frequency domain units, where X1 is a positive integer.

58. The method of claim 57, wherein: The frequency domain unit in the X1 frequency domain units is one of the following: candidate frequency domain resources, channel, system bandwidth, carrier, subcarrier, physical resource block PRB, bandwidth part BWP, megahertz MHz, kilohertz kHz, hertz Hz.

59. The method according to claim 57 or 58, characterized in that The X1 frequency domain units are agreed upon by a protocol, or the X1 frequency domain units are configured by a network device, or the X1 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

60. The method of claim 55 or 56, wherein: When m=1 and n=1, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources in the deployment frequency band corresponding to the AMP device are adjacent to each other.

61. The method of claim 55 or 56, wherein: When m≥2 and n≥2, the deployment frequency band corresponding to the AMP device includes multiple groups of bound candidate frequency domain resources; Each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources includes at least one first-category candidate frequency domain resource and at least one second-category candidate frequency domain resource.

62. The method of claim 61, wherein: The multiple groups of bound candidate frequency domain resources are agreed upon by a protocol, or the multiple groups of bound candidate frequency domain resources are configured by a network device, or the multiple groups of bound candidate frequency domain resources are determined based on information reported by the AMP device.

63. The method of claim 62, wherein: In the case where the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

64. The method according to any one of claims 61 to 63, characterized in that In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources are adjacent to the second type of candidate frequency domain resources, or the first type of candidate frequency domain resources are not adjacent to the second type of candidate frequency domain resources.

65. The method according to any one of claims 61 to 64, characterized in that In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy a preset relationship.

66. The method of claim 65, wherein: In each group of bound candidate frequency domain resources in the multiple groups of bound candidate frequency domain resources, the first type of candidate frequency domain resources and the second type of candidate frequency domain resources satisfy the following formula: F1=F2+ΔF; Among them, F1 represents the first type of candidate frequency domain resources, F2 represents the second type of candidate frequency domain resources, and ΔF represents the frequency domain interval.

67. The method according to any one of claims 55 to 66, characterized in that The m first-category candidate frequency domain resources are agreed upon by a protocol; or, The m first-category candidate frequency domain resources are configured by a network device; or, The m first-category candidate frequency domain resources are seized by the network device and indicated to the AMP device; or, The m first-category candidate frequency domain resources are determined based on information reported by the AMP device.

68. The method of claim 67, wherein: In the case where the m first-category candidate frequency domain resources are configured by a network device, a configuration granularity of the m first-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

69. The method according to any one of claims 55 to 68, characterized in that The frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device.

70. The method of claim 69, wherein: When the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the first category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

71. The method according to any one of claims 55 to 70, characterized in that The n second-category candidate frequency domain resources are agreed upon by a protocol; or, The n second-category candidate frequency domain resources are configured by a network device; or, The n second-category candidate frequency domain resources are determined based on information reported by the AMP device; or, The n second-category candidate frequency domain resources are seized by the network device and indicated to the AMP device.

72. The method of claim 71, wherein: In the case where the n second-category candidate frequency domain resources are configured by a network device, a configuration granularity of the n second-category candidate frequency domain resources includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

73. The method according to any one of claims 55 to 72, characterized in that The frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

74. The method of claim 73, wherein: When the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the second category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

75. The method of claim 54, wherein: When the candidate frequency domain resources used for transmission of the first signal are the same as the candidate frequency domain resources used for transmission of the second signal, all candidate frequency domain resources within the deployment frequency band corresponding to the AMP device include s third-category candidate frequency domain resources, wherein the third-category candidate frequency domain resources are candidate frequency domain resources that can be used to transmit the first signal and the second signal, and s is a positive integer.

76. The method of claim 75, wherein: The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different from the frequency domain resources that can be used to transmit the second signal.

77. The method of claim 75 or 76, wherein: The interval between the frequency domain resources that can be used to transmit the first signal and the frequency domain resources that can be used to transmit the second signal in the third category of candidate frequency domain resources is greater than or equal to X2 frequency domain units, where X2 is a positive integer.

78. The method of claim 77, wherein: The frequency domain unit in the X2 frequency domain units is one of the following: channel, system bandwidth, carrier, subcarrier, PRB, BWP, MHz, kHz, Hz.

79. The method of claim 77 or 78, wherein: The X2 frequency domain units are agreed upon by a protocol, or the X2 frequency domain units are configured by a network device, or the X2 frequency domain units are determined based on a clock frequency factor reported by the AMP device.

80. The method according to any one of claims 75 to 79, characterized in that There are guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal, and / or there are guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal; Wherein, radio frequency signals cannot be transmitted in the protection interval.

81. The method of claim 80, wherein: The sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are the same, or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are different; and / or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are the same, or the sizes of the guard intervals on both sides of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are different.

82. The method of any one of claims 75 to 81, wherein: The third type of candidate frequency domain resources includes multiple groups of bound frequency domain resources; Each group of bound frequency domain resources in the multiple groups of bound frequency domain resources includes at least one frequency domain resource that can be used to transmit the first signal and at least one frequency domain resource that can be used to transmit the second signal.

83. The method of claim 82, wherein: The multiple groups of bound frequency domain resources are agreed upon by a protocol, or the multiple groups of bound frequency domain resources are configured by a network device, or the multiple groups of bound frequency domain resources are determined based on information reported by the AMP device, or the multiple groups of bound frequency domain resources are associated with at least one of the following: an identifier of the AMP device, an identifier of the AMP group to which the AMP device belongs.

84. The method of claim 83, wherein: In the case where the multiple groups of bound candidate frequency domain resources are configured by the network device, the multiple groups of bound candidate frequency domain resources are seized by the network device and indicated to the AMP device, or the multiple groups of bound candidate frequency domain resources are semi-statically or dynamically configured by the network device.

85. The method according to any one of claims 75 to 84, characterized in that The s third-category candidate frequency domain resources are configured by a network device; or, The s third-category candidate frequency domain resources are determined based on information reported by the AMP device; or, The s third-category candidate frequency domain resources are seized by the network device and indicated to the AMP device.

86. The method of claim 85, wherein: In the case where the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources are successfully preempted when there is no interference between the frequency domain resources that can be used to transmit the first signal, the frequency domain resources that can be used to transmit the second signal, the frequency domain resources that can be used to transmit the first signal, and the frequency domain resources that can be used to transmit the second signal.

87. The method of claim 85 or 86, wherein: In the case where the s third-category candidate frequency domain resources are preempted by the network device and indicated to the AMP device, the third-category candidate frequency domain resources and the adjacent candidate frequency domain resources are all preempted by the network device, or only the third-category candidate frequency domain resources are preempted by the network device.

88. The method of any one of claims 75 to 87, wherein: The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are determined based on information reported by the AMP device; and / or, The frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are agreed upon by a protocol, or the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are determined based on information reported by the AMP device.

89. The method of claim 88, wherein: In the case where the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the first signal includes one of the following: AMP granularity, AMP group granularity, cell granularity; and / or, When the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal are configured by a network device, the configuration granularity of the frequency domain resources in the third category of candidate frequency domain resources that can be used to transmit the second signal includes one of the following: AMP granularity, AMP group granularity, and cell granularity.

90. The method according to any one of claims 55 to 89, characterized in that Different AMP devices share candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices share candidate frequency domain resources that can be used to transmit the second signal; or, Different AMP devices use different candidate frequency domain resources that can be used to transmit the first signal, and / or different AMP devices use different candidate frequency domain resources that can be used to transmit the second signal.

91. The method of claim 90, wherein: In the case where different AMP devices share a candidate frequency domain resource that can be used to transmit the first signal, the different AMP devices transmit the first signal using frequency division multiplexing (FDM); and / or, In the case that different AMP devices share candidate frequency domain resources that can be used to transmit the second signal, the different AMP devices transmit the second signal using FDM.

92. The method of any one of claims 53 to 91, wherein: In the deployment frequency band corresponding to the AMP device, different candidate frequency domain resources do not overlap, or different candidate frequency domain resources partially overlap.

93. The method of any one of claims 53 to 92, wherein: The candidate frequency domain resource is one of the following: channel, system bandwidth, carrier bandwidth, BWP, aggregation / aggregation / binding of multiple BWPs, aggregation / aggregation / binding of multiple subcarriers, and aggregation / aggregation / binding of multiple PRBs.

94. The method of any one of claims 51 to 93, wherein: The first signal is a signal that is transmitted periodically, or the first signal is a signal that is transmitted based on an event trigger, or the first signal is a signal that is transmitted in conjunction with the second signal, or the first signal is a signal that is transmitted continuously; and / or, The second signal is a signal that is transmitted periodically, or the second signal is a signal that is transmitted based on an event trigger, or the second signal is a signal that is transmitted in conjunction with the first signal, or the second signal is a signal that is transmitted continuously.

95. The method of any one of claims 51 to 94, wherein: The first signal is a single-frequency signal, and / or the second signal is a single-frequency signal.

96. The method of any one of claims 51 to 95, wherein: The first signal and / or the second signal is a narrowband signal with a bandwidth less than or equal to a preset value.

97. The method of any one of claims 51 to 96, wherein: The first signal and / or the second signal is used for energy harvesting by the AMP device.

98. The method of any one of claims 51 to 97, wherein: The third signal is associated with a high-order component obtained after the first signal and the second signal are subjected to intermodulation or intermodulation processing.

99. The method of any one of claims 51 to 98, wherein: The first signal and the second signal are sent by the same device, or the first signal and the second signal are sent by different devices.

100. The method according to any one of claims 51 to 99, characterized in that The third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock, including: The signal obtained after envelope detection of the third signal is used to acquire or determine the local clock.

101. The method according to any one of claims 51 to 100, characterized in that The first communication device is one of the following: an access point AP, a station STA, a base station, a terminal device, and a transmitting and receiving point TRP.

102. An environmental energy AMP device, characterized in that: include: A communication unit, configured to receive a first signal and a second signal; A processing unit, configured to perform intermodulation or intermodulation processing on the first signal and the second signal to obtain a third signal; The processing unit is further configured to determine a local clock according to the third signal.

103. A communication device, characterized in that: The communication device is a first communication device, and the communication device includes: A communication unit, configured to send a first signal and / or a second signal to an environmental energy AMP device; The third signal obtained by intermodulation or intermodulation processing of the first signal and the second signal is used to determine the local clock of the AMP device; In which, when the first communication device only sends the first signal, the second signal is sent to the AMP device by the second communication device triggered by the first communication device; or, when the first communication device only sends the second signal, the second signal is sent to the AMP device after being triggered by the second communication device.

104. An environmental energy AMP 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 AMP device executes the method as claimed in any one of claims 1 to 50.

105. A communication device, characterized in that: The communication device is a first communication device, and the communication device includes: 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 as described in any one of claims 51 to 101.

106. A chip, characterized in that: It comprises: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 50.

107. A chip, characterized in that: It comprises: a processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes a method as described in any one of claims 51 to 101.

108. A computer-readable storage medium, characterized in that Used for storing a computer program, when the computer program is executed, the method according to any one of claims 1 to 50 is implemented.

109. A computer-readable storage medium, characterized in that: Used to store a computer program, when the computer program is executed, the method as claimed in any one of claims 51 to 101 is implemented.

110. A computer program product, characterized in that The method comprises computer program instructions, and when the computer program instructions are executed, the method according to any one of claims 1 to 50 is implemented.

111. A computer program product, characterized in that Comprising computer program instructions, when the computer program instructions are executed, the method as claimed in any one of claims 51 to 101 is implemented.

112. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 1 to 50 is implemented.

113. A computer program, characterized in that When the computer program is executed, the method according to any one of claims 51 to 101 is implemented.

Images