Wireless communication methods, network equipment, and environmental energy AMP equipment

Abstract

Wireless communication methods, network equipment, and environmental energy AMP equipment are advantageous for ensuring normal communication between network equipment and zero-power equipment, and the method includes the network equipment transmitting capability information of the network equipment to the environmental energy AMP equipment.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and specifically, to a wireless communication method, network device, and ambient energy (AMP) device.

Background Art

[0002] Zero-power terminals can be widely applied to various industries such as logistics for vertical industries, intelligent warehouses, intelligent agriculture, energy power, industrial Internet, smart wearables, and personal applications such as smart homes due to their significant advantages such as extremely low cost, zero power, and small size. Different from the capabilities of conventional terminals, different zero-power terminals may have different types or capabilities. Therefore, how to realize the connection and establishment of zero-power devices to ensure normal communication between network devices and zero-power terminals is an urgent problem to be solved.

Summary of the Invention

Means for Solving the Problems

[0003] The present application provides a wireless communication method, a network device, and an ambient energy (AMP) device, which are advantageous for ensuring normal communication between a network device and a zero-power device.

[0004] In a first aspect, a wireless communication method is provided, and the wireless communication method includes: a network device transmitting the capability information of the network device to an ambient energy (AMP) device.

[0005] In a second aspect, a wireless communication method is provided, and the wireless communication method includes: an ambient energy (AMP) device receiving the capability information of the network device transmitted from the network device.

[0006] In the third embodiment, a network device is provided that is configured to perform the method in the first embodiment or each of its implementations.

[0007] Specifically, the network device includes a functional module configured to perform the method in the first embodiment or each of its implementations described above.

[0008] In the fourth aspect, an environmental energy (AMP) device is provided that is configured to perform the method in the second aspect or each of its implementations.

[0009] Specifically, the environmental energy (AMP) device includes a functional module configured to perform the methods in the second embodiment or each of its implementations described above.

[0010] In the fifth embodiment, a network device including a processor and memory is provided. The memory is configured to store computer programs, and the processor is configured to call and execute the computer programs stored in the memory to perform the methods in the first embodiment or each of its implementations.

[0011] The sixth embodiment provides an environmental energy (AMP) device including a processor and memory. The memory is configured to store computer programs, and the processor is configured to call and execute the computer programs stored in the memory to perform the methods of the second embodiment or each of its implementations.

[0012] The seventh aspect provides a chip configured to implement any one of the first to second aspects described above, or the methods in each of their implementations.

[0013] Specifically, the chip includes a processor configured to call and execute a computer program from memory, causing the device on which the device is installed to perform any one of the first to second embodiments described above or the method in each of their implementations.

[0014] The eighth aspect provides a computer-readable storage medium in which a computer program is stored that causes a computer to execute any one of the first to second aspects or the methods in each of their implementations.

[0015] The ninth aspect provides a computer program product that includes computer program instructions for causing a computer to execute any one of the first to second aspects described above, or the methods in each of their implementations.

[0016] In the tenth embodiment, a computer program is provided that, when executed on a computer, causes the computer to execute any one of the first to second embodiments or the methods in each of their implementations.

[0017] The above technical solution allows network devices to transmit capability information to zero-power devices, and furthermore, AMP devices can select appropriate network devices based on the capability information and establish connections, thereby ensuring normal communication between AMP devices and network devices. [Brief explanation of the drawing]

[0018] [Figure 1] This is a schematic diagram of the communication system architecture according to an embodiment of this application. [Figure 2] This is a schematic diagram of a zero-power communication system according to an example of this application. [Figure 3] This is a diagram illustrating the principle of energy collection according to one embodiment of this application. [Figure 4] This is a schematic diagram illustrating the principle of backscatter communication according to one embodiment of this application. [Figure 5] This is a circuit diagram illustrating the principle of resistive load modulation according to one embodiment of this application. [Figure 6] This is a schematic interaction diagram of a wireless communication method according to an embodiment of this application. [Figure 7]It is a schematic diagram of a signal generation method according to an embodiment of the present application. [Figure 8] It is a schematic diagram of another signal generation method according to an embodiment of the present application. [Figure 9] It is a schematic diagram of yet another signal generation method according to an embodiment of the present application. [Figure 10] It is a schematic block diagram of a network device according to an embodiment of the present application. [Figure 11] It is a schematic block diagram of an environmental energy (AMP) device according to an embodiment of the present application. [Figure 12] It is a schematic block diagram of a communication device according to an embodiment of the present application. [Figure 13] It is a schematic block diagram of a chip according to an embodiment of the present application. [Figure 14] It is a schematic block diagram of a communication system according to an embodiment of the present application.

Embodiments for Carrying out the Invention

[0019] In the following, referring to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described. It is clear that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. For all other embodiments that can be obtained by those skilled in the art without creative efforts regarding the embodiments of the present application, all belong to the protection scope of the present application.

[0020] The technical solutions of the embodiments of this application are applicable to various communication systems, such as Global System of Mobile communication (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, NR system evolution systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, Non-Terrestrial Networks (NTN) systems, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WiFi) systems. It can be applied to Fidelity, 5th generation (5G) communication systems, cellular mono network systems, cellular passive mono network systems, or other communication systems.

[0021] Typically, conventional communication systems support a limited number of connections, and implementation is relatively easy. However, with the advancement of communication technology, mobile communication systems support not only conventional communication but also, for example, device-to-device (D2D), machine-to-machine (M2M), machine-type communication (MTC), vehicle-to-vehicle (V2V), and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0022] Optionally, the communication system in the embodiment of this application may be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network scenario.

[0023] Optionally, the communication system in the embodiments of this application may be applied to an unlicensed spectrum, where the unlicensed spectrum may be considered a shared spectrum. Alternatively, the communication system in the embodiments of this application may be applied to a licensed spectrum, where the licensed spectrum may be considered a non-shared spectrum.

[0024] The embodiments of this application describe each embodiment in relation to network equipment and terminal equipment, where terminal equipment may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device.

[0025] In the embodiments of this application, the network equipment may be equipment for communicating with mobile devices. The network equipment may be an access point (AP) in WLAN, a base station (BTS) in GSM® or CDMA, a base station (NB) in WCDMA®, an evolutionary base station (eNB or eNodeB) in LTE®, a relay station or access point, in-vehicle equipment, wearable devices and network equipment (gNB) in NR networks, network equipment in cellular IoT, network equipment in cellular passive IoT, network equipment in future evolving PLMN networks, or network equipment in NTN networks.

[0026] As an example, and not an limitation, in the embodiments of this application, the network equipment may have mobile characteristics; for example, the network equipment may be a mobile device. Optionally, the network equipment 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 (GEO) satellite, a high-elliptical orbit (HEO) satellite, etc. Optionally, the network equipment may be a base station located on land, in a body of water, or elsewhere.

[0027] In embodiments of this application, network equipment can provide services to a cell, and terminal equipment communicates with the network equipment using the transmission resources (e.g., frequency domain resources or spectral resources) used by the cell. The cell may be a cell corresponding to network equipment (e.g., a base station). The cell may belong to a macro base station or to a base station corresponding to a small cell. The small cell here may include metro cells, micro cells, pico cells, femto cells, etc., which have a small coverage range and low transmission power and are suitable for providing high-rate data transmission services.

[0028] Terminal devices may be stations (ST) in a WLAN, cellular phones, cordless phones, SIP (Session Initiation Protocol) phones, Wireless Local Loop (WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolving public land mobile network (PLMN) networks, terminal devices in cellular IoT, terminal devices in cellular passive IoT, etc.

[0029] In the embodiments of this application, terminal devices can be located indoors or outdoors, on land including handheld, wearable or vehicle-mounted devices, on water (such as ships), or in the air (such as airplanes, balloons, and satellites).

[0030] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver functionality, 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 care, 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.

[0031] For illustrative purposes only, the embodiments of this application may include a wearable device. A wearable device, also known as a wearable smart device, is a general term for wearable devices such as glasses, gloves, watches, clothing, and shoes that are smartly designed for everyday wear using wearable technology. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only hardware devices but also achieve powerful functionality through software support, data interaction, and cloud interaction. Wearable smart devices in a broad sense include smartwatches and smart glasses that are fully functional, large in size, and can perform all or part of their functions without relying on a smartphone, as well as various smart bracelets and smart accessories that perform physical condition monitoring and focus only on certain types of application functions and need to be used in conjunction with other devices such as smartphones.

[0032] Exemplary, a communication system 100 applicable to an embodiment of this application is shown in Figure 1. The communication system 100 may include a network device 110. The network device 110 may be a device that communicates with terminal devices 120 (or communication terminals, referred to as terminals). The network device 110 can provide communication coverage to a specific geographic area and communicate with terminal devices located within that coverage area.

[0033] Figure 1 illustrates one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include a number of other terminal devices within its coverage area, but is not limited to the embodiments of this application.

[0034] Optionally, the communication system 100 may further include other network entities such as a network controller or a mobility management entity, but is not limited to the embodiments of this application.

[0035] It should be understood that in the embodiments of this application, devices having communication functions in the network / system can be called communication devices. Taking the communication system 100 shown in Figure 1 as an example, the communication devices may include network devices 110 and terminal devices 120 having communication functions, and the network devices 110 and terminal devices 120 may be the specific devices described above, which will not be repeated here. The communication devices may further include other devices in the communication system 100, such as network controllers and other network entities such as mobility management entities, and are not limited to the embodiments of this application.

[0036] It should be understood that the terms “system” and “network” as used herein are always interchangeable. The terms “and / or” as used herein simply describe the relationship between the related objects, indicating that three relationships are possible. For example, A and / or B can indicate three situations: A exists independently, A and B exist simultaneously, or B exists independently. Furthermore, the symbol “ / ” as used herein generally indicates that the preceding and following related objects are in an “or” relationship.

[0037] It should be understood that the “instruction” referred to in the embodiments of this application may be direct instruction, indirect instruction, or indicate a related relationship. For example, A instructing B may mean that A directly instructs B, for example, that B can be obtained by A; or A indirectly instructs B, for example, that A instructs C and B can be obtained by C; or it may indicate a related relationship between A and B.

[0038] In the description of the embodiments of this application, the term "correspondence" may indicate a direct or indirect correspondence between two things, or a related relationship between two things, and may also refer to a relationship such as indicating and being indicated, or composing and being composed.

[0039] In the embodiments of this application, “predefined” can be implemented by pre-storing corresponding codes, tables, or other means for indicating relevant information within the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation methods. For example, predefined may refer to those defined in a protocol.

[0040] In the embodiments of this application, the “protocol” may refer to, but is not limited to, standard protocols in the field of communications, including, for example, LTE protocols, NR protocols, and related protocols applicable to future communication systems.

[0041] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of this application will be described.

[0042] 1. Zero-power communication Key technologies in zero-power communications include energy collection, backscatter communications, and low-power technologies.

[0043] As shown in Figure 2, a typical zero-power communication system (such as an RFID system) includes network equipment (such as an RFID system reader) and zero-power terminals (such as electronic tags). The network equipment is used to transmit wireless power supply signals and downlink communication signals to the zero-power terminal and to receive backscatter signals from the zero-power terminal. A basic zero-power terminal includes an energy collection module, a backscatter communication module, and a low-power computing module. The zero-power terminal may also have memory or sensors to store some basic information (such as an item identifier) ​​and sensor data such as ambient temperature and ambient humidity.

[0044] For example, an energy collection module can collect energy carried by radio waves in space (shown in Figure 2 as radio waves transmitted from network equipment), drive a low-power computing module in a zero-power terminal, and enable backscatter communication. After acquiring energy, the zero-power terminal can receive control signaling from network equipment and, based on the control signaling, transmit data to the network equipment using a backscatter method. The transmitted data may be data stored in the zero-power terminal itself (such as an ID identifier, or pre-written information such as the product's manufacturing date, brand, and manufacturer). The zero-power terminal can be loaded with various sensors, thereby enabling it to report data collected by these sensors based on the zero-power mechanism. The following describes important technologies in zero-power communication.

[0045] 1. Radio frequency energy collection (RF Power Harvesting) As shown in Figure 3, the radio frequency energy collection module achieves collection of spatial electromagnetic wave energy based on the principle of electromagnetic induction, and further acquires the energy necessary to drive the operation of the zero-power terminal. For example, this energy is used to drive low-power demodulation and modulation modules, sensors, and memory readouts. Therefore, the zero-power terminal does not require a conventional battery.

[0046] 2. Backscattering As shown in Figure 4, a zero-power terminal receives a carrier signal transmitted from network equipment, modulates the carrier signal, loads the information that needs to be transmitted, and radiates the modulated signal from its antenna. This information transmission process is called backscatter communication. Backscatter and load modulation functions are inseparable. Load modulation performs the modulation process by adjusting and controlling the circuit parameters of the zero-power terminal's oscillator circuit according to the rhythm of the data stream, thereby changing parameters such as the size of the zero-power terminal's impedance accordingly. Load modulation techniques mainly include two methods: resistive load modulation and capacitive load modulation. In resistive load modulation, the load is connected in parallel with a resistor, which is turned on or off based on the control of the binary data stream, as shown in Figure 5. The on / off switching of the resistor causes a change in the circuit voltage, thus enabling amplitude shift modulation (ASK), that is, signal modulation and transmission are achieved by adjusting the amplitude of the backscatter signal from the zero-power terminal. Similarly, in capacitor-load modulation, the resonant frequency of the circuit can be changed by switching the capacitor on and off, thereby achieving frequency-shifted modulation (FSK). In other words, signal modulation and transmission are achieved by adjusting the operating frequency of the backscattered signal of the zero-power terminal.

[0047] As can be seen from the above, zero-power terminals perform information modulation on the carrier signal using a load modulation method, thereby realizing a backscatter communication process. Therefore, zero-power terminals have the following significant advantages.

[0048] (1) Since it does not actively transmit signals, complex radio frequency links such as PAs and radio frequency filters are not required.

[0049] (2) Since there is no need to actively generate high-frequency signals, high-frequency crystal vibrations are unnecessary.

[0050] (3) Backscatter communication eliminates the need for the terminal itself to consume energy for transmitting terminal signals.

[0051] 3.Encoding technology Data transmitted by zero-power terminals can use different forms of code to represent binary "1"s and "0s". Radio frequency identification systems typically use one of the following coding methods: non-zero-reverting (NRZ) coding, Manchester coding, unipolar zero-reverting coding, differential two-phase (DBP) coding, differential coding, pulse-interval coding (PIE), bidirectional spatial coding (FM0), Miller coding, and differential coding. Simply put, different coding techniques use different pulse signals to represent 0s and 1s.

[0052] Zero-power communication, with its remarkable advantages such as extremely low cost, zero power consumption, and small size, can be widely applied to various vertical industries including logistics, intelligent warehousing, intelligent agriculture, energy and power, and industrial internet, as well as to personal applications such as smart wearables and smart homes.

[0053] In some scenarios, based on the energy source and usage method of the zero-power terminal, zero-power terminals can be classified into the following types:

[0054] 1. Passive Zero Power Terminal Zero-power terminals (such as electronic tags in RFID systems) do not require a built-in battery. When a zero-power terminal is in close proximity to network equipment (such as readers in RFID systems), it is within the range of the near-field formed by the antenna radiation of the network equipment. As a result, the antenna of the zero-power terminal generates an induced current through electromagnetic induction. This induced current drives the low-power chip circuit of the zero-power terminal, enabling operations such as demodulation of the forward link signal and modulation of the reverse link (also called the reflected link). For backscatter links, the zero-power terminal transmits signals using a backscatter realization method.

[0055] As can be seen from the above, passive zero-power terminals do not require an internal battery to operate, whether it is a forward or reverse link, and are truly zero-power terminals.

[0056] Because passive zero-power terminals do not require batteries, their radio frequency and baseband circuits are very simple, eliminating the need for devices such as low-noise amplifiers (LNAs), power amplifiers (PAs), crystal oscillators, and analog-to-digital converters (ADCs). This results in many advantages, including small size, light weight, low cost, and a long service life.

[0057] 2. Semi-passive zero-power terminals The semi-passive zero-power terminal itself does not have a conventional battery attached. It collects radio wave energy using an RF energy collection module and stores the collected energy in an energy storage unit (such as a capacitor). After the energy storage unit acquires energy, it drives the low-power chip circuit of the zero-power terminal, enabling operations such as demodulation of the forward link signal and modulation of the reverse link signal. For backscatter links, the zero-power terminal transmits signals using a backscatter realization method.

[0058] As can be seen from the above, semi-passive zero-power terminals, whether forward or reverse links, do not require an internal battery to operate. While they use energy stored in a capacitor during operation, this energy is obtained from radio wave energy collected by an energy collection module, making them truly zero-power terminals.

[0059] Semi-passive zero-power terminals inherit many of the advantages of passive zero-power terminals, resulting in numerous benefits such as smaller size, lighter weight, lower cost, and longer service life.

[0060] 3. Active Zero Power Terminals Zero-power terminals used in some scenarios may be active zero-power terminals, and these types of devices may have a built-in battery. The battery powers the low-power chip circuitry of the zero-power terminal and is used to perform operations such as demodulation of forward link signals and modulation of reverse link signals. However, in backscatter links, zero-power terminals transmit signals using a backscatter realization method. Therefore, the zero-power aspect of this type of device mainly refers to the fact that the terminal itself does not require power for signal transmission in the reverse link and uses a backscatter method.

[0061] Active zero-power terminals utilize a built-in battery to power the RFID chip, increasing the read / write distance and improving communication reliability. Therefore, they can be applied to scenarios with relatively high requirements regarding communication distance and read latency.

[0062] In some scenarios, zero-power devices can be classified into the following types based on the type of transmitter:

[0063] 1) Zero-power devices based on backscattering This type of zero-power device transmits uplink data using the aforementioned backscattering method. This type of zero-power device does not have an active transmitter that transmits actively, but only a backscattering transmitter. Therefore, when this type of zero-power device transmits data, network equipment needs to provide a carrier wave, and this type of zero-power device performs backscattering based on the carrier wave, thereby achieving data transmission.

[0064] 2) Zero-power devices based on active transmitters This type of zero-power device transmits uplink data using an active transmitter with active transmission capabilities. Therefore, when transmitting data, this type of zero-power device does not require network equipment to provide the carrier wave; it can transmit data using its own active transmitter. Suitable active transmitters for zero-power devices may include, for example, ultra-low power ASK or ultra-low power FSK transmitters. When transmitting a 100uW signal, the total power consumption can be reduced to 400-600uW.

[0065] 3) Zero-power equipment equipped with both a backscatter transmitter and an active transmitter. This type of zero-power device can support both backscatter and active transmitters. Depending on different circumstances (battery status, available ambient energy, etc.) or based on network equipment scheduling, this type of zero-power device can determine which signal transmission method to use, i.e., transmit signals using either an active or backscatter transmitter.

[0066] With the rapid development of the Internet of Things, existing IoT communication technologies cannot meet the needs of IoT communication in many scenarios. For example, the following:

[0067] 1. A challenging communication environment Some IoT scenarios may face extreme environments such as high temperatures, cryogenic temperatures, high humidity, high pressure, high radiation, or high-speed movement. Examples include ultra-high voltage substations, high-speed train track monitoring, high-temperature environment monitoring, and industrial production lines. In these scenarios, existing IoT devices cannot operate due to the limitations of operating environments restricted by conventional power sources. Furthermore, extreme operating environments are disadvantageous for IoT maintenance, such as battery replacement.

[0068] 2. Need for extremely small device form factors In several IoT communication scenarios, such as food traceability, product distribution, and smart wearables, terminals are required to be extremely small in size to facilitate use in these scenarios. For example, IoT terminals used for product management in the distribution process are typically embedded in product packaging in a very compact form, usually in the form of electronic tags. Another example is lightweight wearable devices, which can improve the user experience while meeting user needs.

[0069] 3. Extremely low-cost IoT communication needs In many IoT communication scenarios, the cost of IoT devices must be sufficiently low to enhance their competitiveness compared to other alternative technologies. For example, in logistics and warehouse management scenarios, IoT devices can be attached to each item to facilitate the management of large volumes of goods in circulation. This allows for precise management of the entire logistics process and its entire cycle through communication between the device and the logistics network. In these scenarios, IoT devices must be competitively priced.

[0070] Therefore, to cover these unmet Internet of Things (IoT) communication needs, it is necessary to develop ultra-low-cost, extremely small, battery-free / maintenance-free IoT devices even on cellular networks, and zero-power IoT can meet precisely these needs.

[0071] Zero-power Internet of Things (IoT) may also be called Ambient power enabled IoT (Ambient IoT or AMP IoT). Zero-power devices may also be called Ambient IoT devices or AMP IoT devices. Ambient IoT devices can refer to IoT devices that utilize various forms of environmental energy, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy. Such devices do not need to have energy storage capabilities, and may have very limited energy storage capabilities, such as using a capacitor with a capacitance of several tens of microfibers.

[0072] Ambient IoT may be used in at least the following four scenarios:

[0073] 1. Object identification in logistics, production line product management, supply chain management, etc. 2. Environmental monitoring, including monitoring of temperature, humidity, and harmful gases in the work environment and natural environment. 3. Positioning such as indoor positioning, intelligent object detection, and object positioning on production lines. 4. Intelligent control of various electrical appliances in smart homes (on / off air conditioner, temperature control), intelligent control of various equipment in agricultural greenhouses (automatic irrigation, fertilization), etc. Zero-power terminals, with their remarkable advantages such as extremely low cost, zero power consumption, and small size, can be widely applied to various industries including vertical industries like logistics, intelligent warehousing, intelligent agriculture, energy and power, industrial internet, smart wearables, smart homes, and personal applications. Because the capabilities of zero-power terminals differ from those of conventional terminals, and different zero-power terminals may have different types or capabilities, how network equipment establishes connections with zero-power devices to enable communication with them is an urgent issue that needs to be resolved.

[0074] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application will be described in detail below with reference to specific embodiments. The above related technologies can be optionally combined with the technical solutions of the embodiments of this application as selectable solutions, and all of them fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least a portion of the following.

[0075] Figure 6 is a schematic interaction diagram of a wireless communication method 200 according to an embodiment of this application. As shown in Figure 6, the method 200 includes at least some of the following:

[0076] In S210, the network device transmits capability information of the network device to the environmental energy (AMP) device.

[0077] In response, the AMP device receives capability information from the network device.

[0078] In some embodiments, the capability information of the network equipment may be transmitted by broadcast, multicast, or unicast.

[0079] In the embodiments of this application, the AMP device is also called an Ambient IoT device, AMP IoT device, zero-power device, or zero-power terminal.

[0080] It should be noted that in the embodiments of this application, the name "AMP device" does not limit its energy source. For example, the energy required for operation can be obtained from radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, etc.

[0081] In some embodiments, the network equipment may be a base station in a cellular communication system, for example, a gNB in ​​an NR system, or an AP in a WIFI system, or a relay node, but this application is not limited to these embodiments.

[0082] In some embodiments, AMP devices may be classified into multiple types based on their capabilities. Different types of AMP devices may have corresponding complexity and communication capabilities.

[0083] In some embodiments, the capabilities of the AMP device are Whether or not it has energy storage capacity, the magnitude of that energy storage capacity, and other energy storage capabilities of AMP equipment. The energy collection capabilities of AMP equipment, such as supporting energy collection methods based on power supply signals, The AMP device may include at least one of the capabilities related to signal transmission, such as whether or not it supports active signal transmission, supported signal modulation schemes, supported signal coding schemes, and supported signal generation schemes.

[0084] In some specific embodiments, the type of AMP equipment includes at least one of the following: a first type AMP equipment (denoted as equipment A), a second type AMP equipment (denoted as equipment B), and a third type AMP equipment (denoted as equipment C).

[0085] The first type of AMP device lacks energy storage capability and does not support active signal transmission. In other words, the first type of AMP device uses a backscatter communication method.

[0086] The second type of AMP device has energy storage capability and does not support active signal transmission.

[0087] The third type of AMP device has energy storage capability and supports active signal transmission.

[0088] In some embodiments, the second type of AMP device can utilize stored energy to amplify backscattered signals.

[0089] In some embodiments, the third type of AMP device can support backscatter communication schemes.

[0090] In some embodiments, Type 1 AMP devices have the lowest complexity and power consumption, with power consumption as low as 1 microwatt (μW), but their communication range is limited, typically only a few meters. Type 1 AMP devices require network equipment to provide the carrier signal for backscattering transmission. Type 3 AMP devices generally feature large-capacity capacitors for energy storage, can support power consumption of several hundred μW, can support active signal transmission, and have a long communication distance. Because Type 3 AMP devices can perform active transmission, network equipment does not need to provide the carrier signal. The complexity and power consumption of Type 2 AMP devices fall between Type 1 and Type 3 AMP devices.

[0091] In some embodiments, the capability information of a network device may include capability information regarding AMP devices that the network device supports access to, and / or capability information regarding the communication scheme used to support communication between the network device and the AMP devices.

[0092] In some embodiments, the capability information regarding AMP devices that network devices support access to is as follows: The types of AMP devices supported by the network equipment. Whether network equipment supports providing power supply signals for energy collection, This may include at least one of the following: whether or not the network device supports providing a carrier signal for backscattering.

[0093] In some embodiments, capability information regarding the communication method used by network equipment to support communication with AMP equipment is, Modulation methods supported by network equipment, Encoding schemes supported by network devices, Signal generation methods supported by network devices, This may include at least one of the wireless air interface technologies supported by the network device.

[0094] In some specific embodiments, the capability information of the network device is The type of AMP device that the aforementioned network device supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The network device includes at least one of the signal generation methods supported by the network device.

[0095] In some embodiments, the types of AMP devices that a network device supports access to may include, but are not limited to, one or more of the types of AMP devices classified based on the capabilities of the aforementioned AMP devices.

[0096] For example, the types of AMP devices that the aforementioned network device supports access to are: It includes at least one of the following: a Type 1 AMP device, a Type 2 AMP device, or a Type 3 AMP device.

[0097] In some specific examples, the capability information of network devices is This is used to indicate access to at least one type of AMP device among Type 1 AMP devices, Type 2 AMP devices, and Type 3 AMP devices.

[0098] In some embodiments, since the first type of AMP device supports only backscatter communication methods, network devices need to support providing carrier signals for backscatter access to this type of AMP device.

[0099] In some embodiments, the second type of AMP device has energy storage capability and, for example, collects energy based on radio frequency energy and supports only backscatter communication schemes. Therefore, for access to this type of AMP device, network equipment needs to support the provision of a power supply signal for energy collection and a carrier signal for backscatter.

[0100] In some embodiments, the third type of AMP device has energy storage capability and, for example, collects energy based on radio frequency energy; therefore, for access to this type of AMP device, network equipment needs to support the provision of a power supply signal for energy collection.

[0101] In some embodiments, the fact that a network device supports access to a first type of AMP device means that the network device supports providing a carrier signal.

[0102] In some embodiments, the support of network equipment for access to a second type of AMP equipment means that the network equipment supports providing a power supply signal (where the second type of equipment performs energy collection based on radio frequency energy) and supports providing a carrier signal.

[0103] In some embodiments, the fact that a network device supports access to a third type of AMP device means that the network device supports providing power supply signals.

[0104] In other words, if the network equipment supports the provision of carrier signals, it can support access for both Type 1 and Type 2 AMP equipment, and if the network equipment supports the provision of power supply signals, it can support access for both Type 2 and Type 3 AMP equipment.

[0105] In some embodiments, the modulation scheme supported by the network device may refer to the modulation scheme supported by the network device through communication with the AMP device.

[0106] In some embodiments, the modulation schemes supported by the network device correspond to the modulation schemes supported by the target type of AMP device, where the target type is the type of AMP device that the network device supports accessing. In other words, if the network device supports a certain modulation scheme, it can support access to the corresponding type of AMP device.

[0107] In some embodiments, the modulation scheme supported by the network device may be a single-carrier-based modulation scheme or a multi-carrier (MC)-based modulation scheme.

[0108] In some embodiments, the modulation schemes supported by network devices are: It may include, but is not limited to, at least one of the following: On-Off Keying (OOK), Frequency-Shift Keying (FSK), or Phase-Shift Keying (PSK).

[0109] In some embodiments, the modulation schemes supported by network devices are: It may include, but is not limited to, at least one of MC-OOK, MC-FSK, or MC-PSK.

[0110] In some embodiments, the encoding scheme supported by a network device may refer to the encoding scheme supported by the network device through its communication with the AMP device.

[0111] In some embodiments, the encoding scheme supported by the network device corresponds to the encoding scheme that the target type of AMP device can support, where the target type is the type of AMP device that the network device supports accessing. In other words, if the network device supports a certain encoding scheme, it can support access to the corresponding type of AMP device.

[0112] In some embodiments, the encoding schemes supported by network devices are: Non-return zero (NRZ) coding, Manchester coding, unipolar zero-return coding, differential bi-phase (DBP) coding, differential coding, pulse-interval coding (PIE), bidirectional spatial coding (FM0), Miller coding, and differential coding may include, but are not limited to, at least one of these.

[0113] In some embodiments, the signal generation method supported by the network device may refer to the signal waveform generation method, and may include, but is not limited to, the modulation method of the information to be transmitted, the resource mapping method of the modulation symbols, and the processing method of the modulation symbols.

[0114] In some embodiments, the signal generation scheme supported by the network device corresponds to the signal reception scheme that the target type of AMP device can support. Here, the target type is the type of AMP device that the network device supports accessing. In other words, if the network device supports a certain signal generation scheme, it can support access to the corresponding type of AMP device.

[0115] In some embodiments, the signal generation scheme supported by the network device may include an MC-ASK waveform generation scheme, or it may include an MC-FSK waveform generation scheme, an MC-PSK waveform generation scheme, and so on.

[0116] In some embodiments, the method for generating the MC-ASK waveform is: The method includes, but is not limited to, at least one of the following: a first MC-ASK waveform generation method, a second MC-ASK waveform generation method, a third MC-ASK waveform generation method, and a fourth MC-ASK waveform generation method. Here, the signal generation parameters corresponding to the above four MC-ASK waveform generation methods are different.

[0117] In some embodiments, the MC-FSK waveform generation method is: The method includes, but is not limited to, at least one of the first MC-FSK waveform generation method and the second MC-FSK waveform generation method. Here, the signal generation parameters corresponding to the above MC-FSK waveform generation methods are different.

[0118] In some embodiments, the signal generation parameters are: The AMP includes at least one of the following: the modulation scheme used to generate the AMP signal; the number of N subcarrier segments to carry the AMP signal; the number of subcarriers contained in one segment; the bit transport scheme within one segment; the number of bits transported by one orthogonal frequency-division multiplexing (OFDM) symbol; guard band information between segments; the subcarrier spacing corresponding to the target signal; the position of the modulated carrier in one segment; and the length of the cyclic prefix (CP) of the OFDM symbol.

[0119] The following will explain the specific implementation of the waveform generation method described above, using an example.

[0120] In the following example, K is the magnitude of the number of points in the inverse discrete Fourier transform (IDFT), N is the number of subcarriers for the transmission of the AMP signal, and the AMP signal is directed to the signal transmitted by the AMP device.

[0121] In some embodiments, for the first MC-ASK waveform generation scheme, each OFDM symbol carries 1 bit. Here, the subcarrier carrying the AMP signal is modulated and then undergoes IDFT, after which the corresponding output OOK signal is 1, and if the subcarrier carrying the AMP signal is zero power, the corresponding output OOK signal is 0. Figure 7 shows a schematic diagram of the generation process for generating an AMP signal based on the first MC-ASK waveform generation scheme.

[0122] In some embodiments, for the second MC-ASK waveform generation scheme, each OFDM symbol carries M bits in the frequency domain, and the N subcarriers carrying the AMP signal are divided into M segments, each segment carrying 1 bit of information. In each segment, if all subcarriers are modulated, the corresponding output OOK signal is 1, and if all subcarriers are zero power, the corresponding output OOK signal is 0. Figure 8 shows a schematic diagram of the generation process for generating an AMP signal based on the second MC-ASK waveform generation scheme when M=2.

[0123] In some embodiments, for a third MC-ASK waveform generation scheme, each OFDM symbol carries 1 bit, and the N subcarriers carrying the AMP signal are divided into M segments. In the M segments, if one subcarrier in each segment is modulated and the other subcarriers are zero power, the corresponding output OOK signal is 1, and if all subcarriers in all segments are zero power, the corresponding output OOK signal is 0.

[0124] In some embodiments, for the fourth MC-ASK waveform generation scheme, each OFDM symbol carries M bits in the time domain. N subcarriers carrying the AMP signal are generated by DFT, and M bits are represented by S sampling points. The S sampling points undergo DFT transformation to form S subcarriers. Furthermore, the S subcarriers undergo processes such as truncation to form N subcarriers, and then the OOK signal is generated through IDFT transformation. Figure 9 shows a schematic diagram of the generation process for generating an AMP signal based on the fourth MC-ASK waveform generation scheme when M=4.

[0125] In some embodiments, for a first MC-FSK waveform generation scheme, N subcarriers carrying the AMP signal are divided into M pairs of segments, and in each OFDM symbol, one segment of each pair of segments is modulated and the other segment is zero power.

[0126] In some embodiments, for the second MC-FSK waveform generation method, the N subcarriers carrying the AMP signal are 2 M It is divided into segments, and in each OFDM symbol, 2 M Within each segment, one segment is modulated, while the other segments are at zero power.

[0127] It should be understood that the other signals in the examples in Figures 7 to 9 may be existing signals or channels in a communication system, or legacy signals or channels, such as legacy signals or channels in an NR system, or existing signals or frames in a WIFI system.

[0128] In some embodiments, the wireless air interface technology supported by a network device may include the wireless air interface technology supported when the network device communicates with an AMP device. For example, this may include processing technology used by the network device to generate AMP signals (e.g., modulation technology, coding technology), and communication technology for transmitting AMP signals to the AMP device via the wireless air interface. The wireless air interface technology supported by the network device corresponds to the wireless air interface technology that the AMP device that the network device supports access to can support.

[0129] In some embodiments, the wireless air interface technology supported by the network device corresponds to the wireless air interface technology that the target type AMP device can support, where the target type is the type of AMP device that the network device supports access to. In other words, if the network device supports a certain wireless air interface technology, it can support access to the corresponding type of AMP device.

[0130] In some embodiments, the capability information of the network device is transmitted by a first frame, which includes, but is not limited to, at least one of a Beacon frame, an Association Response frame, a Reassociation Response frame, and a Probe Response frame. For example, in a Wi-Fi system, the capability information of the network device can be transmitted by a first frame.

[0131] In some embodiments, the capabilities information of the network device is conveyed in the Capabilities Information field of the first frame.

[0132] In some embodiments, the capability information of the network device is It is transmitted by at least one of the following: system messages, broadcast messages, and Radio Resource Control (RRC) signaling.

[0133] For example, in a cellular network system, network device capability information may be transmitted via system messages, broadcast messages, or RRC signaling.

[0134] In some embodiments, the capability information of the network device is transmitted by a first wireless air interface.

[0135] Optionally, the first wireless air interface is a wireless air interface corresponding to the capability information of the network equipment, or the first wireless air interface can support the capabilities related to the capability information of the network equipment.

[0136] Optionally, the first wireless air interface is a wireless air interface corresponding to the type of AMP equipment supported by the network device, or the first wireless air interface is a wireless air interface through which the network device and a target type of AMP equipment communicate, where the target type is the type of AMP equipment supported by the network device.

[0137] In some embodiments, the capability information of the network device may be used by the AMP device to select a target network device to establish a connection (or access, association) with, or to select a target network device to communicate with.

[0138] For example, an AMP device can select a target network device to establish a connection with based on the capabilities information of the network device, and can further initiate a random access process to establish a connection with the target network device. Alternatively, an AMP device can select a target network device to associate with based on the capabilities information of the network device, and can further initiate an association process to associate with the target network device.

[0139] In some embodiments of this application, the method 200 further includes S220.

[0140] In S220, the AMP device reports its capability information to the network device.

[0141] In response, network devices receive capability information from AMP devices.

[0142] In some embodiments, the capability information of the AMP device may include capability information relating to energy collection supported by the AMP device, and / or capability information relating to communication methods supported by the AMP device.

[0143] In some embodiments, capability information of the AMP device may be used by network devices to perform access control to the AMP device.

[0144] For example, network equipment can control whether to allow or deny access to certain types of AMP equipment based on the capabilities information of the AMP equipment.

[0145] For example, if the network equipment does not support providing power signals, access for Type 1 AMP equipment will be allowed, while access for Type 2 and Type 3 AMP equipment will be denied. If the network equipment does support providing power signals, access for Type 2 and Type 3 AMP equipment will be allowed.

[0146] As another example, if the network equipment does not support the provision of carrier signals, access for Type 1 and Type 2 AMP equipment is prohibited, and access for Type 3 AMP equipment is permitted. If the network equipment does support the provision of carrier signals, access for Type 1 and Type 2 AMP equipment is permitted.

[0147] In some embodiments, the capability information of the AMP device is The type of AMP equipment, Whether or not the aforementioned AMP device has energy storage capability, The energy source of the aforementioned AMP equipment, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The AMP device includes at least one of the signal generation methods supported by the AMP device.

[0148] In some embodiments, the type of AMP device may be one of several AMP device types classified according to the method described in the embodiments above.

[0149] In some embodiments, the type of AMP equipment is: It is one of three types of amplifiers: Type 1, Type 2, and Type 3.

[0150] In some embodiments, the capability information of the AMP device is transmitted by a second frame, which includes at least one of a probe request frame, an association request frame, and a re-association request frame. For example, in a Wi-Fi system, the capability information of the AMP device can be transmitted by a second frame. In other words, the AMP device can report its capability information during the association process or the probe process.

[0151] In some embodiments, the capability information of the AMP device is stored in the Capabilities Information field of the second frame.

[0152] In some embodiments, the capability information of the AMP device is transmitted to the network device during the random access process or after the random access process.

[0153] In some embodiments, the capability information of the AMP device is reported to the network device by RRC signaling.

[0154] For example, AMP devices report their capabilities via RRC signaling after random access.

[0155] As can be seen from the above, in the embodiments of this application, the network device can transmit capability information of the network device to the AMP device, and furthermore, the AMP device can select an appropriate network device based on the capability information of the network device and establish a connection, thereby ensuring normal communication between the AMP device and the network device.

[0156] In some implementations, an AMP device can report its capability information to a network device, and the network device can then perform access control to the AMP device based on that capability information, thereby ensuring that the appropriate AMP device accesses the network device and also ensuring normal communication between the AMP device and the network device.

[0157] The embodiments of the method of this application will be described in detail above with reference to Figures 6 to 9, but the embodiments of the apparatus of this application will be described in detail below with reference to Figures 10 to 14. The embodiments of the apparatus and the embodiments of the method correspond to each other, and it should be understood that similar descriptions can be found by referring to the embodiments of the method.

[0158] Figure 10 shows a schematic block diagram of the network device 400 according to an embodiment of this application. As shown in Figure 10, the network device 400 is This includes a communication unit 410 configured to transmit capability information of the network equipment to environmental energy (AMP) equipment.

[0159] In some embodiments, the capability information of the network device is The type of AMP device that the aforementioned network device supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The network device includes at least one of the signal generation methods supported by the network device.

[0160] In some embodiments, the type of AMP equipment that the network equipment supports access to is: It includes at least one of the following: Type 1 AMP equipment, Type 2 AMP equipment, or Type 3 AMP equipment. The aforementioned first type of AMP device does not have energy storage capability and does not support active signal transmission. The second type of AMP device has energy storage capability and does not support active signal transmission. The third type of AMP device has energy storage capability and supports active signal transmission.

[0161] In some embodiments, the capability information of the network device is transmitted by a first frame, the first frame comprising at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.

[0162] In some embodiments, the capability information of the network device is stored in the capability information field of the first frame.

[0163] In some embodiments, the capability information of the network device is It is transmitted by at least one of the following: system messages, broadcast messages, and radio resource control (RRC) signaling.

[0164] In some embodiments, capability information of the network device is transmitted by a first wireless air interface, the first wireless air interface being a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device.

[0165] In some embodiments, the communication unit 410 is further configured to receive capability information of the AMP device transmitted from the AMP device.

[0166] In some embodiments, the capability information of the AMP device is The type of AMP equipment, Whether or not the aforementioned AMP device has energy storage capability, The energy source of the aforementioned AMP equipment, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The AMP device includes at least one of the signal generation methods supported by the AMP device.

[0167] In some embodiments, the type of AMP equipment is: It is one of the following: Type 1 AMP equipment, Type 2 AMP equipment, and Type 3 AMP equipment. The aforementioned first type of AMP device does not have energy storage capability and does not support active signal transmission. The second type of AMP device has energy storage capability and does not support active signal transmission. The third type of AMP device has energy storage capability and supports active signal transmission.

[0168] In some embodiments, capability information of the AMP device is transmitted by a second frame, the second frame comprising at least one of a probe request frame, an association request frame, and a reassociation request frame.

[0169] In some embodiments, the capability information of the AMP device is stored in the capability information field of the second frame.

[0170] In some embodiments, the capability information of the AMP device is transmitted to the network device during the random access process or after the random access process.

[0171] In some embodiments, the capability information of the AMP device is reported to the network device by RRC signaling.

[0172] Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or transceiver, or it may be a communication chip or a system-on-a-chip input / output interface.

[0173] The network device 400 according to the embodiment of this application can correspond to the network device in the embodiment of the method of this application, and it should be understood that the above and other operations and / or functions of each unit within the network device 400 are for realizing the corresponding processes of the network device in the method shown in Figures 6 to 9, respectively. For the sake of brevity, this will not be repeated here.

[0174] Figure 11 shows a schematic block diagram of the AMP device 500 according to an embodiment of this application. As shown in Figure 11, the AMP device 500 is Includes a communication unit 510 configured to receive capability information of the network device transmitted from the network device.

[0175] In some embodiments, the capability information of the network device is The type of AMP device that the aforementioned network device supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The network device includes at least one of the signal generation methods supported by the network device.

[0176] In some embodiments, the type of AMP equipment that the network equipment supports access to is: It includes at least one of the following: Type 1 AMP equipment, Type 2 AMP equipment, or Type 3 AMP equipment. The aforementioned first type of AMP device does not have energy storage capability and does not support active signal transmission. The second type of AMP device has energy storage capability and does not support active signal transmission. The third type of AMP device has energy storage capability and supports active signal transmission.

[0177] In some embodiments, the capability information of the network device is transmitted by a first frame, the first frame comprising at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.

[0178] In some embodiments, the capability information of the network device is stored in the capability information field of the first frame.

[0179] In some embodiments, the capability information of the network device is It is transmitted by at least one of the following: system messages, broadcast messages, and radio resource control (RRC) signaling.

[0180] In some embodiments, capability information of the network device is transmitted by a first wireless air interface, the first wireless air interface being a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device.

[0181] In some embodiments, the communication unit 510 is further configured to transmit capability information of the AMP device to network equipment.

[0182] In some embodiments, the capability information of the AMP device is The type of AMP equipment, Whether or not the aforementioned AMP device has energy storage capability, The energy source of the aforementioned AMP equipment, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The AMP device includes at least one of the signal generation methods supported by the AMP device.

[0183] In some embodiments, the type of AMP equipment is: It is one of the following: Type 1 AMP equipment, Type 2 AMP equipment, and Type 3 AMP equipment. The aforementioned first type of AMP device does not have energy storage capability and does not support active signal transmission. The second type of AMP device has energy storage capability and does not support active signal transmission. The third type of AMP device has energy storage capability and supports active signal transmission.

[0184] In some embodiments, capability information of the AMP device is transmitted by a second frame, the second frame comprising at least one of a probe request frame, an association request frame, and a reassociation request frame.

[0185] In some embodiments, the capability information of the AMP device is stored in the capability information field of the second frame.

[0186] In some embodiments, the capability information of the AMP device is transmitted to the network device during the random access process or after the random access process.

[0187] In some embodiments, the capability information of the AMP device is reported to the network device by RRC signaling.

[0188] Optionally, in some embodiments, the communication unit described above may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit described above may be one or more processors.

[0189] The AMP device 500 according to the embodiment of this application can correspond to the AMP device in the embodiment of the method of this application, and it should be understood that the above and other operations and / or functions of each unit within the AMP device 500 are for realizing the corresponding processes of the AMP device in the method shown in Figures 6 to 9, respectively. For the sake of brevity, this will not be repeated here.

[0190] Figure 12 is a schematic diagram of the communication device 600 according to an embodiment of this application. The communication device 600 shown in Figure 12 is equipped with a processor 610, which can call and execute a computer program from memory to realize the method in the embodiment of this application.

[0191] Optionally, as shown in Figure 12, the communication device 600 may further include a memory 620. In this case, the processor 610 can call and execute a computer program from the memory 620 to implement the method in the embodiment of this application.

[0192] Here, the memory 620 may be a standalone device independent of the processor 610, or it may be integrated into the processor 610.

[0193] Optionally, as shown in Figure 12, the communication device 600 may further include a transceiver 630, and the processor 610 can control the transceiver 630 to communicate with other devices, specifically, to transmit information or data to other devices or to receive information or data transmitted from other devices.

[0194] Here, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may also include an antenna, and the number of antennas may be one or more.

[0195] Optionally, the communication device 600 may be a network device of an embodiment of this application, which can implement the corresponding process implemented by the network device in each method of the embodiment of this application, which will not be described again here for brevity.

[0196] Optionally, the communication device 600 may be an AMP device of the embodiment of this application, which can implement the corresponding processes implemented by the AMP device in each method of the embodiment of this application, which will not be described again here for brevity.

[0197] Figure 13 is a schematic diagram of the chip of an embodiment of this application. The chip 700 shown in Figure 13 includes a processor 710, which can call and execute a computer program from memory to realize the method of the embodiment of this application.

[0198] Optionally, as shown in Figure 13, the chip 700 may further include memory 720. Here, the processor 710 can call and execute a computer program from memory 720 to implement the method in the embodiment of this application.

[0199] Here, the memory 720 may be a standalone device independent of the processor 710, or it may be integrated into the processor 710.

[0200] Optionally, the chip 700 may further include an input interface 730. Here, the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, to acquire information or data transmitted from other devices or chips.

[0201] Optionally, the chip 700 may further include an output interface 740. Here, the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, it can output information or data to other devices or chips.

[0202] Optionally, the chip may be applied to the network equipment in the embodiments of this application, which can implement the corresponding processes realized by the network equipment in each method of the embodiments of this application, which will not be described again here for brevity.

[0203] Optionally, the chip may be applied to an AMP device in an embodiment of this application, which can implement the corresponding processes realized by the AMP device in each method of the embodiment of this application, which will not be repeated here for the sake of brevity.

[0204] The chips referred to in the embodiments of this application should be understood to be system-level chips, system chips, chip systems, or system chip-on-chip, among other things.

[0205] Figure 14 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in Figure 14, the communication system 900 comprises an AMP device 910 and a network device 920.

[0206] Here, the AMP device 910 may be used to implement the corresponding function realized by the AMP device in the above method, and the network device 920 may be used to implement the corresponding function realized by the network device in the above method, which will not be described again here for the sake of brevity.

[0207] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the embodiments of the above method may be completed via hardware integrated logic circuits within the processor or via instructions in the form of software. The above processor may 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 gates, or transistor logic devices, discrete hardware elements, etc. Each method, step and logic block diagram disclosed in the embodiments of this application can be implemented or executed. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the methods disclosed in the embodiments of this disclosure may be directly implemented as being executed and completed by a hardware decoding processor, or by a combination of hardware and software modules within the decoding processor. The software module may reside in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, or registers. The storage medium is located in memory, and the processor reads the information in memory and combines it with its hardware to complete the steps of the method described above.

[0208] Understandably, the memory in the embodiments of this application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Here, non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) used as an external cache. By illustrative rather than restrictive description, 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), synchlink DRAM, and direct Rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein includes, but is not limited to, these and any other suitable types of memory.

[0209] It should be understood that the above-mentioned memories are illustrative but not limiting. For example, the memories in the embodiments of this application may include 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), synch-linked dynamic random access memory (SLDRAM), and direct Rambus random access memory (DR RAM). In other words, the memories in the embodiments of this application include, but are not limited to, these and any other suitable types of memory.

[0210] Embodiments of this application further provide a computer-readable storage medium configured to store computer programs.

[0211] Optionally, the computer-readable storage medium may be applied to the network equipment in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network equipment in each method of the embodiments of this application, which will not be described again here for the sake of brevity.

[0212] Optionally, the computer-readable storage medium may be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of this application, which for the sake of brevity will not be repeated here.

[0213] The embodiments of this application further provide a computer program product that includes computer program instructions.

[0214] Optionally, the computer program product may be applied to the network equipment in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network equipment in each method of the embodiments of this application, which will not be described again here for the sake of brevity.

[0215] Optionally, the computer program product may also be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiments of this application, which will not be described again here for the sake of brevity.

[0216] The embodiments of this application further provide a computer program.

[0217] Optionally, the computer program may also be applied to the network equipment in the embodiments of this application, and when the computer program is executed on the computer, it causes the computer to execute the corresponding processes implemented by the network equipment in each method of the embodiments of this application, which for the sake of brevity will not be repeated here.

[0218] Optionally, the computer program may also be applied to the mobile terminal / terminal device in the embodiments of this application, and when the computer program is executed on the computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiments of this application, which for the sake of brevity will not be repeated here.

[0219] As will be obvious to those skilled in the art, the units and algorithmic steps of each example described with reference to the embodiments disclosed herein may be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware form or software form will depend on the specific application and design constraints of the technical solution. Skilled technicians may implement the described functions using different methods depending on each specific application, but such implementations should not be considered beyond the scope of this application.

[0220] Those skilled in the art will understand this clearly, but for the sake of convenience and brevity, the specific working processes of the systems, apparatus, and units described above can be referenced to the corresponding processes in the embodiments of the methods described above and will not be repeated here.

[0221] In some embodiments provided in this application, it should be understood that the disclosed systems, apparatus and methods can be implemented in other ways. For example, the embodiments of the apparatus described above are illustrative only, and for example, the division of the units is only a logical functional division, and other divisional modes may be possible in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. Also, the mutual coupling, direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via some communication interface, apparatus or unit, and may be in an electrical, mechanical or other form.

[0222] 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 among multiple network units. Depending on the actual needs, some or all of these units can be selected to achieve the objectives of the solution of this embodiment.

[0223] Furthermore, each functional unit in each embodiment of this application may be integrated into a single processing unit, the individual units may exist physically independently, and two or more units may be integrated into a single unit.

[0224] If the aforementioned functions are implemented in the form of a software function unit and sold or used as an independent product, they may be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of this application may be essentially, or contribute to the prior art, or a part of such technical solutions may be embodied in the form of a computer software product, which is stored on a storage medium and includes several instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of this application. The storage medium includes various media capable of storing program code, such as USB flash disks, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0225] The above descriptions are merely specific embodiments of the present application, and the scope of protection of this application is not limited thereto. Any person skilled in the art will readily conceive of any variations or substitutions within the technical scope disclosed herein, and all such variations or substitutions should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be subject to the scope of protection of the claims.

Claims

1. A wireless communication method, A wireless communication method comprising a network device transmitting capability information of the network device to an environmental energy (AMP) device.

2. The capability information of the aforementioned network equipment is: The type of AMP equipment that the aforementioned network equipment supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The signal generation method supported by the network device includes at least one of the following: The wireless communication method according to claim 1.

3. The types of AMP devices that the aforementioned network device supports access to are: A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the third type of AMP device having energy storage capability and supporting active signal transmission, includes at least one of the following: The wireless communication method according to claim 2.

4. The capability information of the network device is transmitted by a first frame, and the first frame is A beacon frame, a probe response frame, an association response frame, and a re-association response frame, including at least one of these, The wireless communication method according to any one of claims 1 to 3.

5. The capability information of the network device is carried in the capability information field of the first frame. The wireless communication method according to claim 4.

6. The capability information of the network device is transmitted by at least one of the following: system messages, broadcast messages, and radio resource control (RRC) signaling. The wireless communication method according to any one of claims 1 to 3.

7. The capability information of the network device is transmitted by a first wireless air interface, and the first wireless air interface is a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device. The wireless communication method according to any one of claims 1 to 6.

8. The network device further includes receiving capability information of the AMP device transmitted from the AMP device. The wireless communication method according to any one of claims 1 to 7.

9. The capability information of the aforementioned AMP device is: The type of the aforementioned AMP equipment, Whether or not the AMP device has energy storage capability, The energy source of the aforementioned AMP device, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The signal generation method supported by the AMP device includes at least one of the following: The wireless communication method according to claim 8.

10. The type of AMP device is, A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the said third type of AMP device having energy storage capability and supporting active signal transmission, is one of the following: The wireless communication method according to claim 9.

11. The capability information of the AMP device is transmitted by a second frame, and the second frame includes at least one of a probe request frame, an association request frame, and a re-association request frame. The wireless communication method according to any one of claims 8 to 10.

12. The capability information of the AMP device is carried in the capability information field of the second frame. The wireless communication method according to claim 11.

13. The capability information of the AMP device is transmitted to the network device during the random access process, or transmitted to the network device after the random access process. The wireless communication method according to any one of claims 8 to 10.

14. The capability information of the aforementioned AMP device is reported to the network device via RRC signaling. The wireless communication method according to claim 13.

15. A wireless communication method comprising an environmental energy (AMP) device receiving capability information of a network device transmitted from the network device.

16. The capability information of the aforementioned network equipment is: The type of AMP equipment that the aforementioned network equipment supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The signal generation method supported by the network device includes at least one of the following: The wireless communication method according to claim 15.

17. The types of AMP devices that the aforementioned network device supports access to are: A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the third type of AMP device having energy storage capability and supporting active signal transmission, includes at least one of the following: The wireless communication method according to claim 16.

18. The capability information of the network device is transmitted by a first frame, and the first frame is A beacon frame, a probe response frame, an association response frame, and a re-association response frame, including at least one of these, The wireless communication method according to any one of claims 15 to 17.

19. The capability information of the network device is carried in the capability information field of the first frame. The wireless communication method according to claim 18.

20. The capability information of the aforementioned network equipment is: Transmitted by at least one of system messages, broadcast messages, and radio resource control (RRC) signaling, The wireless communication method according to any one of claims 15 to 17.

21. The capability information of the network device is transmitted by a first wireless air interface, and the first wireless air interface is a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device. The wireless communication method according to claims 15 to 20.

22. The AMP device further includes transmitting capability information of the AMP device to a network device. The wireless communication method according to claims 15 to 21.

23. The capability information of the aforementioned AMP device is: The type of the aforementioned AMP equipment, Whether or not the AMP device has energy storage capability, The energy source of the aforementioned AMP device, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The signal generation method supported by the AMP device includes at least one of the following: The wireless communication method according to claim 22.

24. The type of AMP device is, A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the said third type of AMP device having energy storage capability and supporting active signal transmission, is one of the following: The wireless communication method according to claim 23.

25. The capability information of the AMP device is transmitted by a second frame, and the second frame includes at least one of a probe request frame, an association request frame, and a re-association request frame. The wireless communication method according to any one of claims 22 to 24.

26. The capability information of the AMP device is carried in the capability information field of the second frame. The wireless communication method according to claim 25.

27. The capability information of the AMP device is transmitted to the network device during the random access process, or transmitted to the network device after the random access process. The wireless communication method according to any one of claims 22 to 24.

28. The capability information of the aforementioned AMP device is reported to the network device via RRC signaling. The wireless communication method according to claim 27.

29. Network equipment including a communication unit configured to transmit network equipment capability information to environmental energy (AMP equipment).

30. The capability information of the aforementioned network equipment is: The type of AMP equipment that the aforementioned network equipment supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The signal generation method supported by the network device includes at least one of the following: The network device according to claim 29.

31. The types of AMP devices that the aforementioned network device supports access to are: A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the third type of AMP device having energy storage capability and supporting active signal transmission, includes at least one of the following: The network device according to claim 30.

32. The capability information of the network device is transmitted by a first frame, and the first frame is A beacon frame, a probe response frame, an association response frame, and a re-association response frame, including at least one of these, A network device according to any one of claims 29 to 31.

33. The capability information of the network device is carried in the capability information field of the first frame. The network device according to claim 32.

34. The capability information of the aforementioned network equipment Transmitted by at least one of system messages, broadcast messages, and radio resource control (RRC) signaling, A network device according to any one of claims 29 to 31.

35. The capability information of the network device is transmitted by a first wireless air interface, and the first wireless air interface is a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device. A network device according to any one of claims 29 to 34.

36. The communication unit is configured to receive capability information of the AMP device transmitted from the AMP device. A network device according to any one of claims 29 to 35.

37. The capability information of the aforementioned AMP device is: The type of the aforementioned AMP equipment, Whether or not the AMP device has energy storage capability, The energy source of the aforementioned AMP device, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The signal generation method supported by the AMP device includes at least one of the following: The network device according to claim 36.

38. The type of AMP device is, A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the said third type of AMP device having energy storage capability and supporting active signal transmission, is one of the following: The network device according to claim 37.

39. The capability information of the AMP device is transmitted by a second frame, and the second frame includes at least one of a probe request frame, an association request frame, and a re-association request frame. A network device according to any one of claims 36 to 38.

40. The capability information of the AMP device is carried in the capability information field of the second frame. The network device according to claim 39.

41. The capability information of the AMP device is transmitted to the network device during the random access process, or transmitted to the network device after the random access process. A network device according to any one of claims 36 to 38.

42. The capability information of the aforementioned AMP device is reported to the network device via RRC signaling. The network device according to claim 41.

43. Environmental Energy (AMP) equipment, including a communication unit configured to receive capability information of said network equipment transmitted from said network equipment.

44. The capability information of the aforementioned network equipment is: The type of AMP equipment that the aforementioned network equipment supports access to, Whether the aforementioned network equipment supports the provision of power supply signals for energy collection, Whether the aforementioned network equipment supports providing carrier signals for backscattering, The modulation schemes supported by the aforementioned network equipment, The encoding scheme supported by the aforementioned network device, The signal generation method supported by the network device includes at least one of the following: The AMP device according to claim 43.

45. The types of AMP devices that the aforementioned network device supports access to are: A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the third type of AMP device having energy storage capability and supporting active signal transmission, includes at least one of the following: The AMP device according to claim 44.

46. The capability information of the network device is transmitted by a first frame, and the first frame is A beacon frame, a probe response frame, an association response frame, and a re-association response frame, including at least one of these, An AMP device according to any one of claims 43 to 45.

47. The capability information of the network device is carried in the capability information field of the first frame. The AMP device according to claim 46.

48. The capability information of the aforementioned network equipment is: Transmitted by at least one of system messages, broadcast messages, and radio resource control (RRC) signaling, An AMP device according to any one of claims 43 to 45.

49. The capability information of the network device is transmitted by a first wireless air interface, and the first wireless air interface is a wireless air interface corresponding to the capability information, or a wireless air interface corresponding to the type of AMP device supported by the network device. An AMP device according to any one of claims 43 to 48.

50. The aforementioned communication unit further, The network device is configured to transmit capability information of the AMP device to the network device. An AMP device according to any one of claims 43 to 49.

51. The capability information of the aforementioned AMP device is: The type of the aforementioned AMP equipment, Whether or not the AMP device has energy storage capability, The energy source of the aforementioned AMP device, Whether the AMP device supports active transmission or not, The modulation schemes supported by the aforementioned AMP device, The encoding scheme supported by the aforementioned AMP device, The signal generation method supported by the AMP device includes at least one of the following: The AMP device according to claim 50.

52. The type of AMP device is, A first type of AMP device, wherein the first type of AMP device does not have energy storage capability and does not support active signal transmission, A second type of AMP device, wherein the second type of AMP device has energy storage capability and does not support active signal transmission, A third type of AMP device, the said third type of AMP device having energy storage capability and supporting active signal transmission, is one of the following: The AMP device according to claim 51.

53. The capability information of the AMP device is transmitted by a second frame, and the second frame includes at least one of a probe request frame, an association request frame, and a re-association request frame. An AMP device according to any one of claims 50 to 52.

54. The capability information of the AMP device is carried in the capability information field of the second frame. The AMP device according to claim 53.

55. The capability information of the AMP device is transmitted to the network device during the random access process, or transmitted to the network device after the random access process. An AMP device according to any one of claims 50 to 52.

56. The capability information of the aforementioned AMP device is reported to the network device via RRC signaling. The AMP device according to claim 55.

57. Network device comprising a processor and memory, wherein the memory is configured to store computer programs, and the processor calls and executes the computer programs stored in the memory to perform the method according to any one of claims 1 to 14.

58. An AMP device comprising a processor and memory, wherein the memory is configured to store a computer program, and the processor calls and executes the computer program stored in the memory to perform the method according to any one of claims 15 to 28.

59. A chip including a processor, wherein the processor calls and executes a computer program from memory, causing a device on which the chip is mounted to execute the method according to any one of claims 1 to 14 or the method according to any one of claims 15 to 28.

60. A computer-readable storage medium storing a computer program that causes a computer to perform the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 28.

61. A computer program product comprising a computer program instruction that causes a computer to execute the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 28.

62. A computer program that causes a computer to perform the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 28.

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