Method for implementing charging link and device

Abstract

The present disclosure provides a method for implementing a charging link and a device. The method which is executed by a charging device and is used for implementing a charging link comprises: in response to detecting an ambient power (AMP) device, sending a wake-up signal to the AMP device; and in response to receiving a wake-up response signal from the AMP device, sending a periodic base charging signal to the AMP device. The AMP device is woken up by the wake-up signal, and the base charge signal is sent to the AMP device to provide the AMP device with a base power supply and to support the AMP device to execute subsequent operations.

Description

Method and device for implementing a charging link Technical Field

[0001] The present disclosure relates to the field of communications, and more particularly, to a method and device for implementing a charging link. Background Art

[0002] The Internet of Things (IoT) is a collection of devices that collect and share data with other devices and communicate over the internet. The IoT not only generates, collects, and communicates data but also supports intelligent decision-making based on that data. Its features, such as remote access, automation, and intelligence, have led to the widespread deployment of IoT devices in applications such as smart homes, smart manufacturing, smart agriculture, and warehousing and logistics. In these scenarios, the continuous investment in massive amounts of electricity and ongoing maintenance of IoT devices are extremely challenging. Therefore, IoT devices with extremely low power consumption and extremely long lifecycles have become a hot research area.

[0003] To this end, the IEEE 802.11 working group recently established the Ambient Power (AMP) study group to conduct research on how IoT devices can harvest energy from the environment for wireless communication. The AMP study group is currently discussing the following two types of ultra-low-power IoT devices:

[0004] 1. AMP-only IoT devices: These devices are characterized by ultra-low complexity, ultra-low power consumption, very small form factors, and being battery-free (i.e., without traditional batteries). They may require no power storage or very limited power storage (e.g., capacitors). This means these devices are mostly offline and can be used for lightweight applications such as identification, positioning, and data reporting as small sensors.

[0005] 2. AMP-assisted IoT devices: AMP-assisted IoT devices are designed to achieve a maintenance-free IoT network, for example, requiring no battery replacement and a lifelong lifecycle. They offer similar capabilities to traditional Wi-Fi devices but with significantly higher performance. Similarly, they are optimized for power consumption and sustainability, harvesting energy from the environment to support communications and achieve maintenance-free operation.

[0006] Summary of the Invention

[0007] The present disclosure provides a method and device for implementing a charging link, which can support AMP devices to collect energy, associate and communicate with AP devices, and negotiate various parameters of the charging link in an offline state. This ensures that the AMP device can still initiate or participate in data collection and transmission, etc. without a power cord or a large-capacity battery, thereby completing the wireless communication tasks of the AMP device within the IoT.

[0008] A first aspect of the present disclosure provides a method for implementing a charging link performed by a charging device, comprising: sending a wake-up signal to an ambient energy (AMP) device in response to detecting the AMP device; and sending a periodic basic charging signal to the AMP device in response to receiving a wake-up response signal from the AMP device.

[0009] A second aspect of the present disclosure provides a method for implementing a charging link performed by an ambient energy (AMP) device, comprising: sending a wake-up response signal to a charging device in response to receiving the wake-up signal; and receiving a periodic basic charging signal from the charging device.

[0010] A third aspect of the present disclosure provides a method for implementing a charging link performed by an access point (AP) device, comprising: sending a detection indication of an ambient energy (AMP) device to a charging device, wherein the detection indication is used to instruct the charging device to send a wake-up signal to the AMP device in response to detecting the AMP device; and receiving a charging capability parameter of the AMP device sent from the AMP device based on a periodic basic charging signal.

[0011] A fourth aspect of the present disclosure provides a charging device, which may include a processor configured to execute the method disclosed according to the first aspect, the second aspect, or the third aspect.

[0012] A fifth aspect of the present disclosure provides an ambient energy (AMP) device, which may include a processor configured to execute the method disclosed according to the first aspect, the second aspect, or the third aspect.

[0013] A sixth aspect of the present disclosure provides an access point (AP) device, which may include a processor configured to execute the method disclosed according to the first aspect, the second aspect, or the third aspect.

[0014] The seventh aspect of the present disclosure provides a chip, which may include a processor configured to call and run a computer program stored in a memory so that the device in which the chip is installed executes the method disclosed in the first aspect, the second aspect or the third aspect.

[0015] An eighth aspect of the present disclosure provides a computer-readable storage medium having a computer program stored therein. The computer program causes a computer to execute the method disclosed in the first, second, or third aspects. The computer-readable medium may include at least one of the following: a hard disk, a CD-ROM, an optical storage device, a magnetic storage device, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an EPROM, an electrically erasable programmable read-only memory, and a flash memory.

[0016] A ninth aspect of the present disclosure provides a computer program product, wherein a computer program is stored, and the computer program enables a computer to execute the method disclosed in the first aspect, the second aspect, or the third aspect.

[0017] A tenth aspect of the present disclosure provides a computer program, which enables a computer to execute the method disclosed according to the first aspect, the second aspect or the third aspect.

[0018] According to at least one of the above aspects, the AMP device is awakened by the wake-up signal and a basic charging signal is sent to the AMP device to provide basic power supply for the AMP device and support the AMP device to perform subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present disclosure or related technologies, the following figures are briefly introduced in the embodiments. Obviously, the figures are only some embodiments of the present disclosure, and those skilled in the art can derive other figures based on these figures without inventive work. In the figures, the same reference numerals indicate the same or similar elements.

[0020] FIG1 illustrates a block diagram of a network architecture in which an AP device serves as a charging device according to some embodiments of the present disclosure.

[0021] FIG2 illustrates a block diagram of a network architecture in which an auxiliary node acts as a charging device according to some embodiments of the present disclosure.

[0022] 3 illustrates a block diagram of a network architecture in which relay nodes serve as charging devices according to some embodiments of the present disclosure.

[0023] 4 illustrates a block diagram of a network architecture in which a backscatter reader acts as a charging device, according to some embodiments of the present disclosure.

[0024] FIG5 illustrates a block diagram of a network architecture of a multi-charging link system according to some embodiments of the present disclosure.

[0025] FIG6 illustrates a flowchart of a method performed by a charging device for implementing a charging link according to some embodiments of the present disclosure.

[0026] FIG7 illustrates the structure of a frame for carrying charging capability parameters of a charging device according to some embodiments of the present disclosure.

[0027] FIG8 illustrates the structure of a frame for carrying charging capability parameters of an AMP device according to some embodiments of the present disclosure.

[0028] FIG9 illustrates the structure of a frame for carrying charging signal parameters according to some embodiments of the present disclosure.

[0029] FIG10 illustrates a flow chart of a method performed by an AMP device for implementing a charging link according to some embodiments of the present disclosure.

[0030] 11 illustrates a flowchart of a method performed by an AP device for implementing a charging link according to some embodiments of the present disclosure.

[0031] 12 illustrates a flow chart of transmitting charging signals and communication signals in a time-division manner when the AP device functions as a charging device and the charging signals occur in the same frequency band according to some embodiments of the present disclosure.

[0032] 13 illustrates a flow chart of transmitting the charging signal and the communication signal in a frequency division manner when the AP device functions as a charging device and the charging signal and the communication signal occur in different frequency bands according to some embodiments of the present disclosure.

[0033] 14 illustrates a flow chart of transmitting charging signals and communication signals when an assisting node acts as a charging device according to some embodiments of the present disclosure.

[0034] FIG15 illustrates a flow chart of transmitting a charging signal and a communication signal when a relay node acts as a charging device according to some embodiments of the present disclosure.

[0035] 16 illustrates a flow chart of transmitting charging signals and communication signals with a backscatter reader as a charging device according to some embodiments of the present disclosure.

[0036] FIG17 illustrates a flow chart of transmitting charging signals and communication signals in the case of multiple charging links according to some embodiments of the present disclosure.

[0037] 18 illustrates a block diagram of an example system for wireless communications in accordance with some embodiments of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure describe technical matters, structural features, objectives and effects in detail with reference to the accompanying drawings, as follows. Specifically, the terms in the embodiments of the present disclosure are only used for the purpose of describing specific embodiments, rather than limiting the present disclosure.

[0039] In this disclosure, "A or B" may mean "only A," "only B," or "both A and B."

[0040] In other words, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B, and C."

[0041] As used in this disclosure, a slash ( / ) or a comma may mean "and / or". For example, "A / B" may mean "A and / or B". Thus, "A / B" may mean "only A", "only B", or "both A and B". For example, "A, B, C" may mean "A, B, or C".

[0042] In the present disclosure, “at least one of A and B” may mean “only A”, “only B”, or “both A and B”. In addition, in the present disclosure, the expression “at least one of A or B” or “at least one of A and / or B” may be interpreted as “at least one of A and B”.

[0043] In addition, in the present disclosure, “at least one of A, B, and C” may mean “only A,” “only B,” “only C,” or “any combination of A, B, and C.” In addition, “at least one of A, B, or C” or “at least one of A, B, and / or C” may mean “at least one of A, B, and C.”

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0045] Based on the current research status of ultra-low power IoT devices in the prior art, the inventors have noticed that these devices have the following problems to be solved:

[0046] 1. AMP devices need to complete Wi-Fi wireless communication and must be compatible with traditional Wi-Fi devices and standards. In other words, they must complete authentication and association with the AP before data transmission can be carried out. The authentication and association process requires the AMP device to send request frames to the AP device and receive response frames from the AP. For AMP-only devices, which do not have power cables and energy storage capabilities, they are in an unpowered state and are difficult to implement.

[0047] AMP-assisted devices must offer higher performance than traditional devices, such as lower power consumption and no maintenance. Ambient energy harvesting is required to support communication, but existing technologies lack the management and control capabilities for charging. This makes it difficult to tailor charging to the specific needs of AMP devices for specific transmission tasks and different charging modes.

[0048] 3. For IoT, the number of devices in the network is huge, and the charging window requirements of a large number of AMP devices are different. It is necessary to implement the allocation of charging signals, authentication access, and transmission TXOPs to support wireless network communication for a large number of devices.

[0049] 4. If the charging device is not an access point (AP), the AMP device can only communicate with the AP, but the AP cannot communicate and negotiate with the charging device.

[0050] The present disclosure provides a method and device for implementing a charging link, aiming to solve one or more of the above problems.

[0051] FIG1 illustrates a block diagram of a network architecture in which an AP device 101 serves as a charging device, according to some embodiments of the present disclosure. Referring to FIG1 , the network architecture shown in FIG1 may include one or more access point (AP) devices 101 and one or more ambient power (AMP) devices 102. For clarity, FIG1 illustrates only one AP device 101 and one AMP device 102.

[0052] AP device 101 can be used as a charging device and can serve as an access point for AMP device 102 to enable network communications for AMP 102. AMP device 102 can be defined as a device without a power cord or battery, or with only a very small energy storage battery, and configured to harvest energy from the environment to charge the device and support its communications. AMP device 102 can include the aforementioned AMP-only IoT devices and AMP-assisted IoT devices, where AMP-only IoT devices include AMP tags, while AMP-assisted IoT devices include AMP STAs (stations). In addition, AMP devices may also include, for example, user terminals, user devices, access devices, subscriber stations, subscriber units, mobile stations, user agents, and user equipment that support Wi-Fi communication functions. User terminals may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, IoT devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile stations (MSs), terminals, terminal devices, portable communication devices, handheld devices, portable computing devices, entertainment devices, gaming devices or systems, global positioning system devices, or any other suitable devices configured to perform network communication via a wireless medium. Furthermore, the AMP device 102 may support the 802.11be standard or the next generation WLAN standard of 802.11be or the 802.11ah standard or other 802.11 series standard standards.

[0053] The AP device 101 and the AMP device 102 can establish a communication transmission link based on the IEEE 802.11 communication protocol (for example, 802.11b, 802.11n, etc.) or other air interface transmission protocols. In addition, a charging signal transmission link can be established from the AP device 101 to the AMP device 102. Therefore, based on the network architecture shown in Figure 1, charging tasks and communication tasks can be implemented between the AP device 101 and the AMP device 102. The charging signal in the charging signal transmission link and the communication signal in the communication transmission link can occur in the same frequency band. For example, the transmission frequency band of the charging signal and the transmission frequency band of the communication signal can both be Sub-1GHz (S1G) or both 2.4GHz. In this case, since the transmission frequency bands of the charging signal and the communication signal are the same, the transceiver of the AP device 101 and / or the transceiver of the AMP device 102 transmits the charging signal and the communication signal in a time-division manner. Alternatively, the charging signal in the charging signal transmission link and the communication signal in the communication transmission link can occur in different frequency bands. For example, the charging signal transmission frequency band can be S1G, while the communication signal transmission frequency band can be 2.4 GHz. In this case, because the charging signal and the communication signal have different transmission frequency bands, the transceiver of the AP device 101 and / or the transceiver of the AMP device 102 uses frequency division to transmit the charging signal and the communication signal.

[0054] FIG2 illustrates a block diagram of a network architecture in which an auxiliary node 103 serves as a charging device, according to some embodiments of the present disclosure. Referring to FIG2 , the network architecture shown in FIG2 may include one or more AP devices 101, one or more AMP devices 102, and one or more auxiliary nodes 103. For clarity, FIG2 illustrates only one AP device 101, one AMP device 102, and one auxiliary node 103.

[0055] AP device 101 can serve as an access point for AMP device 102 to enable network communication for AMP 102 and can be any access point device known in the art. AMP device 102 can be the AMP device 102 shown in FIG1 . For definitions and examples, please refer to the description of AMP device 102 in FIG1 , and for the sake of brevity, this description will not be repeated. Auxiliary node 103 can be any auxiliary node known in the art and can be used as a charging device to charge AMP device 102.

[0056] As shown in Figure 2, the AP device 101 and the AMP device 102 can establish a communication transmission link based on the 802.11b / n communication protocol or the new air interface protocol, and the communication frequency band can be 2.4GHz or S1G, etc. Furthermore, the AP device 101 and the auxiliary node 103 can establish a communication transmission link based on the 802.11 communication protocol, and the communication frequency band can be the Sub-7GHz band or the millimeter wave band, etc. In addition, a charging signal transmission link can be established from the auxiliary node 103 to the AMP device 102 based on a charging signal or a wake-up signal. Therefore, based on the network architecture shown in Figure 2, communication tasks can be implemented between the AP device 101 and the AMP device 102 and between the AP device 101 and the auxiliary node 103, and charging tasks can be implemented between the AMP device 102 and the auxiliary node 103.

[0057] FIG3 illustrates a block diagram of a network architecture in which a relay node 104 serves as a charging device, according to some embodiments of the present disclosure. Referring to FIG3 , the network architecture shown in FIG3 may include one or more AP devices 101, one or more AMP devices 102, and one or more relay nodes 104. For clarity, FIG3 illustrates only one AP device 101, one AMP device 102, and one relay node 104, wherein the relay node 104 and the AMP device 102 are both associated with the same AP device 101.

[0058] AP device 101 may be an access point device known in the art. AMP device 102 may be the AMP device 102 shown in FIG. For definitions and examples, please refer to the description of AMP device 102 in FIG. For the sake of brevity, a repetitive description is omitted. Relay node 104 may be a relay node known in the art and may be used as a charging device to charge AMP device 102.

[0059] As shown in Figure 3, the AP device 101 and the relay node 104 can establish a communication transmission link based on the 802.11 communication protocol. Furthermore, the relay node 104 and the AMP device 102 can establish a communication transmission link based on the 802.11b / n communication protocol or the new air interface protocol. In addition, a charging signal transmission link can be established from the relay node 104 to the AMP device 102 based on a charging signal or a wake-up signal. Therefore, based on the network architecture shown in Figure 3, communication tasks can be implemented between the AP device 101 and the relay node 104 and between the relay node 104 and the AMP device 102, and charging tasks can be implemented between the AMP device 102 and the relay node 104. In addition, the AMP device 102 can also obtain environmental energy such as light energy, heat energy, etc. from the environment (for example, a small solar panel) to charge it.

[0060] FIG4 illustrates a block diagram of a network architecture in which a backscatter reader 105 serves as a charging device, according to some embodiments of the present disclosure. Referring to FIG4 , the network architecture shown in FIG4 may include one or more AP devices 101, one or more AMP devices 102, and one or more backscatter readers 105. For clarity, FIG4 illustrates only one AP device 101, one AMP device 102, and one backscatter reader 105.

[0061] AP device 101 can serve as an access point for AMP device 102 to implement network communication for AMP 102, and can be an access point device known in the art. AMP device 102 can be the AMP device 102 shown in FIG1 . For its definition and example, please refer to the relevant description of AMP device 102 in FIG1 , and for the sake of brevity, the description will not be repeated. Backscatter reader 105 can be a reader known in the art, and can be used as a charging device for charging AMP device 102. The backscatter reader 105 can charge AMP device 102 by backscattering, and therefore the backscatter reader 105 needs to be placed within a specified range (e.g., tens of centimeters) of AMP device 102.

[0062] As shown in FIG4 , AP device 101 and AMP device 102 can establish a communication transmission link based on the 802.11b / n communication protocol or a new air interface protocol. Furthermore, AP device 101 and backscatter reader 105 can establish a communication transmission link based on the 802.11 communication protocol. Furthermore, a charging signal transmission link can be established from backscatter reader 105 to AMP device 102 based on a charging signal or a wake-up signal. Therefore, based on the network architecture shown in FIG4 , communication tasks can be implemented between AP device 101 and AMP device 102, and between AP device 101 and backscatter reader 105, and charging tasks can be implemented between AMP device 102 and backscatter reader 105.

[0063] FIG5 illustrates a block diagram of a network architecture of a multi-charging link system according to some embodiments of the present disclosure. Referring to FIG5 , the network architecture shown in FIG5 may include one or more AP devices 101, multiple AMP devices 102, and one or more auxiliary nodes 103. For clarity, FIG5 illustrates only one AP device 101, three AMP devices 102 (e.g., 102a, 102b, and 102c), and one auxiliary node 103.

[0064] AP device 101 can be used as a charging device to charge AMP devices 102a and 102b, while auxiliary node 103 can be used as another charging device to charge AMP device 102c. Furthermore, AP device 101 can serve as an access point for AMP device 102 to enable network communication for AMP 102 and can be an access point device known in the art. AMP devices 102a, 102b, and 102c can be AMP devices 102 shown in FIG1 . For definitions and examples, please refer to the description of AMP device 102 in FIG1 , and for the sake of brevity, a repetition is omitted. Auxiliary node 103 can be an auxiliary node known in the art.

[0065] As shown in FIG5 , AMP devices 102a, 102b, and 102c, as well as auxiliary node 103, can establish communication transmission links with AP device 101 based on the 802.11b / n communication protocol or a new air interface protocol, thereby forming a first communication area, namely, Communication Area 1. Furthermore, corresponding charging signal transmission links can be established from AP device 101 to AMP devices 102a and 102b, respectively, based on radio frequency (RF) signals, thereby forming a first charging area, namely, Charging Area 1. Furthermore, a charging signal transmission link can be established from auxiliary node 103 to AMP device 102c based on ambient energy, such as RF signals, light, heat, or vibration, thereby forming a second charging area, namely, Charging Area 2. Therefore, based on the network architecture shown in FIG5 , communication tasks can be implemented between multiple devices, and charging tasks can be implemented for multiple AMP devices 102 via multiple different charging devices (such as AP device 102, auxiliary node 103, and / or backscatter readers). The network architecture can be applied to scenarios such as the Internet of Things with multiple devices and multiple connections, and the AP device 101 can control and manage communication links and charging links for devices in the network architecture.

[0066] In the above embodiments, the present disclosure describes examples of some components and their connection relationships in different network architectures shown in FIG. 1 to FIG. 5 , which are mainly for illustrative purposes and not restrictive.

[0067] FIG6 illustrates a flowchart of a method performed by a charging device for implementing a charging link, according to some embodiments of the present disclosure. The order in which the method blocks are described is not intended to be construed as limiting, and any number of the described method blocks can be skipped or combined in any order to implement the method or an alternative method. Generally, any of the components, modules, methods, and operations described herein can be implemented using software, firmware, hardware (e.g., fixed logic circuitry), manual processing, or any combination thereof. Some operations of the example methods may be described in the general context of executable instructions stored on a computer-readable memory locally and / or remotely on a computer processing system, and implementations may include software applications, programs, functions, and the like. Alternatively or additionally, any functionality described herein can be performed, at least in part, by one or more hardware logic components, such as, but not limited to, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), an application specific standard product (ASSP), a system on a chip (SoC), a complex programmable logic device (CPLD), and the like. The methods of the present disclosure may be applicable to any of the network architectures shown in FIG1 through FIG5 and are described using the respective network architectures shown in FIG1 through FIG5 as examples, not limitations.

[0068] Referring to Figure 6, in block 601, a charging device may, in response to detecting an ambient power amplifier (AMP) device, send a wake-up signal to the AMP device. The charging device may be any of the charging devices shown in Figures 1 to 5 (e.g., AP device 101, assist node 103, relay node 104, backscatter reader 105), and the AMP device may be AMP device 102 shown in any of Figures 1 to 5. The wake-up signal may be a standard trigger signal used to perform basic charging and wake up the detected AMP device. This wake-up signal is designed with a unified set of charging signal parameters for all AMP devices. These charging signal parameters may include at least one of the following: transmit power, modulation scheme, transmission frequency band, charging device identifier, detection period, etc. Specifically, after the charging device is powered on or turned on to complete initialization (e.g., the charging transmitter of the charging device is turned on or initialized), the charging device starts a timer and attempts to detect the power receiver of the AMP device within the detection period. After detecting the power receiver, the charging device sends a wake-up signal to the AMP device.

[0069] In block 602, the charging device may, in response to receiving a wake-up response signal from the AMP device, send a periodic basic charging signal to the AMP device. The wake-up response signal may be a standard-compliant response signal and carry the AMP device's MAC address or unique identifier to identify the AMP device as the source of the response signal. Furthermore, upon detecting the presence of the AMP device, the AP device refreshes a timer and receives a wake-up response signal in response to the wake-up signal within a response period. If the AP device receives the wake-up response signal within the response period, it begins sending periodic basic charging signals to the AMP device. Otherwise, the AP device does not send periodic basic charging signals to the AMP device. The periodic basic charging signal may be a standard-compliant periodic charging signal used to support the exchange of charging capability parameters and negotiation of charging signal parameters between the charging device and the AMP device. The periodic basic charging signal may include at least one of the following: the charging device's transmit power, basic signal power, modulation scheme, transmission frequency band, the charging device's identifier, charging window, charging window offset, and charging signal interval. It should be understood that in some embodiments, multiple basic charging signals may be present and / or may be aperiodic, without affecting the functionality of the present application. In addition, due to the ultra-low power consumption limitation of the AMP device, when the charging device is an AP device, the wake-up response signal can be combined with the authentication process, for example, by sending an authentication request frame or a re-authentication request frame to the AP device to implement the sending of the wake-up response signal to the AP device. Alternatively, the wake-up response signal can also be combined with the association process, for example, by sending an association request frame or a re-association request frame to the AP device to implement the sending of the wake-up response signal to the AP device. Alternatively, the wake-up response signal can also be sent to the AP device by sending a probe response frame to the AP device. In addition, the implementation of the wake-up response signal is not limited to this.

[0070] According to the technical solution of the present disclosure, by waking up the AMP device through a wake-up signal and sending a basic charging signal to the AMP device, basic power supply can be provided for the AMP device and the AMP device can be supported to perform subsequent operations.

[0071] Furthermore, in some implementations, the AMP and AP devices can negotiate the configuration of the charging link, allowing the AP and AMP devices to define charging signal parameters, configure the charging signal, and manage and control the charging signal. This is described in detail below.

[0072] In some embodiments, the method may further include providing charging capability parameters of the charging device. Exemplarily, the charging capability parameters may be provided to an AP or an AMP. This operation is part of the charging capability exchange between the charging device and the AMP, and is used to implement various charging-related operations (e.g., negotiation requests and parameter determination) between the charging device and the AMP.

[0073] Furthermore, when the charging device is an AP device 101 or a relay node 104, providing the charging capability parameters of the charging device may include directly sending the charging capability parameters of the charging device to the AMP device. Alternatively, when the charging device is an auxiliary node 103 or a backscatter reader 105, providing the charging capability parameters of the charging device may include sending the charging capability parameters of the charging device to the AMP device via an AP device, wherein the AP device may be the AP device 101 shown in any one of Figures 1 to 5.

[0074] In addition, the charging capability parameters of the charging device may include at least one of the following: S1G support parameter (S1G supported), maximum transmission power (Max transmission power), maximum transmission distance (Max communication distance), maximum number of transmit antennas (Max TX antennas), transmit antenna identifier (TX antenna ID), and maximum number of supported charging sessions or links (Max supported sessions). In some embodiments, providing the charging capability parameters of the charging device includes: providing a frame for carrying the charging capability parameters; wherein the frame for carrying the charging capability parameters includes a charging capability element (Charging Capabilities Element), the charging capability element includes an element ID field and a charging capability parameter field, wherein the element ID field indicates the ID of the charging capability element, and the charging capability parameter field indicates the charging capability parameters of the charging device. In addition, the Charging Capability element also includes a Length field and an Element ID Extension field. The Length field indicates the length of the remaining fields of the Charging Capability element excluding the Element ID field and the Length field. The Element ID Extension field indicates whether the Charging Capability element has an extended ID. The Element ID field and the Element ID Extension field have fixed lengths, while the Length field and the Charging Capability Parameter field have variable lengths. The structure of a frame for carrying the charging capability parameters of a charging device can be designed as shown in FIG7 , and the Charging Capability element is used to carry the charging capability parameters of a charging device.

[0075] In Figure 7, for explanatory purposes, the charging capability parameter field only shows the S1G support parameter, maximum transmit power, maximum transmission distance, maximum number of transmit antennas, transmit antenna identifiers, and the maximum number of supported charging sessions or links. However, the charging capability parameters of the charging device are not limited thereto and may also include other charging capability parameters of the charging device known in the art.

[0076] In some embodiments, when the charging device is an AP device or a relay node, the charging capability parameters of the AMP device can be directly received. In some embodiments, when the charging device is an auxiliary node or a backscatter reader, the charging capability parameters of the AMP device can be received through the AP device. The charging capability parameters of the AMP device include at least one of the following: S1G support parameter (S1G supported), maximum receive power (Max RX power), maximum transmission distance (Max communication distance), maximum number of receive antennas (Max RX antennas), receive antenna identifier (RX antenna ID) and maximum number of supported charging sessions or links (Max supported sessions). In some embodiments, receiving the charging capability parameters of the AMP device includes receiving a frame for carrying the charging capability parameters of the AMP device; wherein the frame for carrying the charging capability parameters of the AMP device includes a charging capability element (Charging Capabilities Element), the charging capability element includes an element ID field and a charging capability parameter field, wherein the element ID field indicates an ID identifier of the charging capability element, and the charging capability parameter field indicates the charging capability parameters of the AMP device. In addition, the charging capability element also includes a length field and an element ID extension field, wherein the length field indicates the length of the remaining fields of the charging capability element excluding the element ID field and the length field, and the element ID extension field indicates whether the charging capability element has an extended ID. The element ID field and the element ID extension field have fixed lengths, and the length field and the charging capability parameter field have variable lengths. The structure of the frame for carrying the charging capability parameters of the AMP device can be designed as shown in Figure 8, and the charging capability element is used to carry the charging capability parameters of the AMP device.

[0077] In Figure 8, for the purpose of explanation, the charging capability parameter field of the AMP device only shows the S1G support parameter, maximum received power, maximum transmission distance, maximum number of receiving antennas, receiving antenna identifiers, and the maximum number of supported charging sessions or links. However, the charging capability parameters of the AMP device are not limited to these and may also include other charging capability parameters of the AMP device known in the art.

[0078] In some embodiments, the method may further include: transmitting a negotiated charging signal to the AMP device, determined based on charging signal parameters, wherein the charging signal parameters are determined based on a negotiation between the AP device and the AMP device. Exemplarily, the negotiated charging signal may have the determined charging signal parameters and be used to provide power to the AMP device for subsequent data transmission. Alternatively, the negotiated charging signal may be periodic or aperiodic.

[0079] In some examples, when the charging device is the AP device, and the charging signal parameters can be determined by the following operations: sending an inquiry frame to the AMP device, wherein the inquiry frame includes inquiry information asking the AMP device whether charging negotiation is required and indicating the transmission opportunity TXOP allocated by the AP device to the AMP device; receiving an inquiry response frame carrying feedback that negotiation is not required from the AMP device within the TXOP; sending a confirmation frame that does not require negotiation to the AMP device; and based on the confirmation frame, maintaining the periodic basic charging signal to charge the AMP device.

[0080] Alternatively, when the charging device is the AP device, the charging signal parameters can also be determined by the following operations: sending an inquiry frame by the AP device to the AMP device, wherein the inquiry frame includes inquiry information asking the AMP device whether charging negotiation is required and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; sending a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device to the AP device within the TXOP by the AMP device, wherein the feedback result includes the need to immediately modify the charging signal parameters and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation mode, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, and charging delay; sending a negotiation response frame including the charging signal parameters and / or response results suggested by the AP device to the AMP device by the AP device; and determining the charging signal parameters by the AP device based on the negotiation request frame and the negotiation response frame.

[0081] Alternatively, when the charging device is the AP device, the charging signal parameters can also be determined by the following operations: sending an inquiry frame to the AMP device, wherein the inquiry frame includes inquiry information inquiring whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; receiving a negotiation request frame carrying feedback of a delayed inquiry and the requested charging signal parameters from the AMP device within the TXOP, wherein the charging signal parameters also include at least one of the following: a delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and sending a negotiation response frame including one of the following to the AMP device: including the following confirmation information: accepting the delayed inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP to the AMP device; and rejection information and the TXOP allocated to the AMP device, so that the AP device and the AMP continue to negotiate to determine the charging signal parameters.

[0082] In other examples, when the charging device is the auxiliary node or the backscatter reader, the method further includes: receiving charging signal parameters determined based on negotiation between the AMP device and the AP device; and sending a negotiated charging signal determined based on the charging signal parameters to the AMP device.

[0083] In some other examples, when the charging device is the relay node, the charging signal parameters can be determined by the following operations: sending an inquiry frame to the AMP device via the relay node by the AP device, wherein the inquiry frame includes inquiry information asking the AMP device whether charging negotiation is required and indicating the transmission opportunity TXOP allocated by the AP device to the AMP device; sending an inquiry response frame carrying feedback that no negotiation is required to the AP device via the relay node by the AMP device in the TXOP; sending a confirmation frame that no negotiation is required to the relay node by the AP device; and charging the AMP device by maintaining the periodic basic charging signal based on the confirmation frame by the relay node.

[0084] Alternatively, when the charging device is the relay node, the charging signal parameters can be determined by the following operations: the AP device sends an inquiry frame to the AMP device via the relay node, wherein the inquiry frame includes inquiry information asking the AMP device whether charging negotiation is required and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; the AMP device sends a negotiation request frame carrying the charging signal parameters requested by the AMP device and / or feedback results to the AP device via the relay node within the TXOP, wherein the feedback result includes the need to immediately modify the charging signal parameters and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation mode, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, and charging delay; the AP device sends a negotiation response frame including the charging signal parameters and / or response results suggested by the AP device to the AMP device via the relay node; the AP device determines the charging signal parameters based on the negotiation request frame and the negotiation response frame; and the AP device sends a confirmation frame carrying the charging signal parameters to the relay node.

[0085] Alternatively, when the charging device is the relay node, the charging signal parameters can be determined by the following operations: the AP device sends an inquiry frame to the AMP device via the relay node, wherein the inquiry frame includes inquiry information inquiring the AMP device whether charging negotiation is required and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; the AMP sends a negotiation request frame carrying feedback of a delayed inquiry and requested charging signal parameters to the AP device via the relay node within the TXOP, wherein the charging signal parameters also include at least one of the following: a delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and the AP device sends a negotiation response frame to the AMP device via the relay node, including one of the following: confirmation information including: accepting the delayed inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP to the AMP device; and rejection information and the TXOP allocated to the AMP device, so that the AP device and the AMP continue to negotiate to determine the charging signal parameters.

[0086] Exemplarily, the response result includes one of the following response information: accepting the modification of the charging signal parameters to use the modified charging signal parameters as the charging signal parameters; not accepting the modification of the charging signal parameters and sending the charging signal parameters suggested by the AP and the TXOP allocated to the AMP device to the AMP device in the negotiation response frame to continue negotiating the charging signal parameters; and rejecting the modification of the charging signal parameters and maintaining the periodic basic charging signal to charge the AMP device.

[0087] The charging signal parameters may include at least one of the following: signal power, modulation mode, transmission frequency band, whether periodic charging is performed, charging duration window, charging signal interval, charging duration window offset, and charging delay. In some embodiments, determining the charging signal parameters includes determining a frame for carrying the charging signal parameters; wherein the frame for carrying the charging signal parameters includes a Charging Parameter Element, wherein the Charging Parameter Element includes an Element ID field and a Charging Signal Parameter field, wherein the Element ID field indicates the ID of the element, and the Charging Signal Parameter field indicates the charging signal parameters requested by the AMP device or the charging signal parameters recommended by the AP device. Furthermore, the Charging Parameter Element includes a Length field and an Element ID Extension field, wherein the Length field indicates the length of the remaining fields of the Charging Parameter Element excluding the Element ID field and the Length field, and the Element ID Extension field indicates whether the Charging Parameter Element has an extended ID. The Element ID field and the Element ID Extension field have fixed lengths, while the Length field and the Charging Signal Parameter field have variable lengths. The structure of the frame for carrying the charging signal parameters may be designed as shown in FIG. 9 , and the Charging Parameter Element is used to carry the charging signal parameters.

[0088] In Figure 9, for the purpose of explanation, the charging signal parameter field only shows signal power, modulation mode, charging duration window, charging signal interval and charging signal type. However, the charging signal parameters are not limited thereto and may also include other charging signal parameters known in the art.

[0089] In some embodiments, the method may further include: adjusting the negotiation charging signal in response to receiving a new charging parameter or a new charging instruction.

[0090] In some embodiments, when the auxiliary node is a backscatter reader, power is provided to the AMP device via backscatter charging. In some embodiments, when multiple AMP devices are present in a multi-charging link scenario, the charging device can establish a corresponding charging link with each of the AMP devices to charge the AMP device, and each charging link in the multiple charging links is indicated by a corresponding link ID identifier among multiple link ID identifiers.

[0091] Through the above-mentioned technical solutions disclosed in the present invention, at least some of the following effects can be achieved: 1) energy collection of AMP devices under various network architectures can be realized; 2) AMP devices can be supported to complete authentication and association processes defined in accordance with the IEEE 802.11 protocol without power supply and large-capacity batteries, thereby completing the transmission of various control frames, management frames and / or data frames; 3) the AMP device and the AP device can negotiate the configuration of the charging link, and the AP device and the AMP device can complete the definition of charging signal parameters, configuration of charging signals, and management and control of charging signals; 4) offline AMP devices can be charged and awakened to complete their wireless transmission tasks; 5) for the case where the charging device is not an AP device, backhaul communication between the AP device and the charging device is realized; and 6) periodic polling of offline AMP devices can be supported to allocate opportunities for charging, access and communication to a large number of IoT devices.

[0092] FIG10 illustrates a flowchart of a method for implementing a charging link performed by an AMP device according to some embodiments of the present disclosure. The order in which the method blocks are described is not intended to be construed as limiting, and any number of the described method blocks can be skipped or combined in any order to implement the method or an alternative method. Generally, any of the components, modules, methods, and operations described herein can be implemented using software, firmware, hardware (e.g., fixed logic circuitry), manual processing, or any combination thereof. Some operations of the example methods can be described in the general context of executable instructions stored on a computer-readable memory locally and / or remotely on a computer processing system, and implementations can include software applications, programs, functions, and the like. Alternatively or additionally, any functionality described herein can be performed, at least in part, by one or more hardware logic components, such as, but not limited to, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), an application specific standard product (ASSP), a system on a chip (SoC), a complex programmable logic device (CPLD), and the like. The methods of the present disclosure may be applicable to any of the network architectures shown in FIG1 through FIG5 and are described using the respective network architectures shown in FIG1 through FIG5 as examples, not limitations.

[0093] Referring to FIG10 , at block 1001, the AMP device may, in response to receiving the wake-up signal, send a wake-up response signal to the charging device. The definition and selection of the AMP device and the charging device, as well as the wake-up signal and the wake-up response signal, may be similar to those described in the method described with respect to FIG6 . For the sake of brevity, the specific details are not repeated. The specific implementation of block 1001 may be referred to the specific implementation of block 601 .

[0094] At block 1002 , the AMP device receives a periodic base charging signal from the charging device. The definition and selection of the periodic base charging signal may be similar to those involved in the method described with respect to FIG. 6 .

[0095] According to the technical solution of the present disclosure, by waking up the AMP device through a wake-up signal and sending a basic charging signal to the AMP device, basic power supply can be provided for the AMP device and the AMP device can be supported to perform subsequent operations.

[0096] Furthermore, in some embodiments, the AMP and AP devices can negotiate the configuration of the charging link. The AP and AMP devices can define charging signal parameters, configure the charging signal, and manage and control the charging signal. A detailed description is provided below.

[0097] In some embodiments, the method may further include: sending charging parameters of the AMP device to an access point (AP) device based on the periodic basic charging signal. The AP device may be the AP device 101 described in any one of Figures 1 to 5. In some examples, the charging parameters of the AMP device may include charging capability parameters of the AMP device, wherein the definition and selection of the charging capability parameters of the AMP device may be performed as described above with respect to the method described in Figure 6. For example, the structure of a frame used to carry the charging capability parameters of the AMP device may be as shown in Figure 8.

[0098] In some embodiments, the method may further include: receiving the charging capability parameters of the charging device from the AP device based on the periodic basic charging signal, wherein the definition and selection of the charging capability parameters of the charging device may be performed as those involved in the method described above with respect to Figure 6 , for example, the structure of the frame for carrying the charging capability parameters of the charging device may be as shown in Figure 7 .

[0099] In some examples, the charging parameters may also include charging signal parameters requested by the AMP device, wherein the definition and selection of the charging signal parameters may be performed as described above with respect to the method described in FIG. 6 , for example, the structure of the frame for carrying the charging signal parameters may be as shown in FIG. 9 .

[0100] In some embodiments, sending the charging parameters of the AMP may include: sending the charging capability parameters of the AMP device to the AP device; and sending the charging signal parameters requested by the AMP device to the AP device.

[0101] In some embodiments, the method may further include: receiving a negotiation charging signal determined based on charging signal parameters from the charging device, wherein the charging signal parameters may be determined as described above with respect to the method of FIG. 6 .

[0102] In some embodiments, the method may further include: receiving a negotiation charging signal determined based on the charging signal parameter from the charging device and receiving a trigger frame from the AP device, and sending communication data to the AP device.

[0103] In some embodiments, the method may further include: receiving an instruction message for instructing the AMP device to stop receiving the charging signal and keep the AMP device offline or powered off before receiving a next wake-up signal.

[0104] FIG11 illustrates a flowchart of a method for implementing a charging link performed by an AP device according to some embodiments of the present disclosure. The order in which the method blocks are described is not intended to be construed as limiting, and any number of the described method blocks can be skipped or combined in any order to implement the method or an alternative method. Generally, any of the components, modules, methods, and operations described herein can be implemented using software, firmware, hardware (e.g., fixed logic circuitry), manual processing, or any combination thereof. Some operations of the example methods may be described in the general context of executable instructions stored on a computer-readable memory local and / or remote to a computer processing system, and implementations may include software applications, programs, functions, and the like. Alternatively or additionally, any functionality described herein can be performed, at least in part, by one or more hardware logic components, such as, but not limited to, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), an application specific standard product (ASSP), a system on a chip (SoC), a complex programmable logic device (CPLD), and the like. The methods of the present disclosure may be applicable to any of the network architectures shown in FIG1 through FIG5 and are described using the respective network architectures shown in FIG1 through FIG5 as examples, not limitations.

[0105] Referring to FIG. 11 , in block 1101, an AP device may send a detection indication of an ambient energy (AMP) device to a charging device, wherein the detection indication instructs the charging device to send a wake-up signal to the AMP device in response to detecting the AMP device. The definition and selection of the AP device, charging device, and AMP device, as well as the wake-up signal, may be similar to those described in the method described with respect to FIG. For the sake of brevity, the specific details are not repeated. In some embodiments, the AP device sends a detection indication to the charging device to detect the AMP device; upon receiving the detection indication, the charging device begins detecting the power receiver of the AMP device and, upon detecting the power receiver, sends a wake-up signal to the AMP device; and upon receiving the wake-up signal, the AMP device turns on its power transmitter and sends a wake-up response signal to the charging device. However, after receiving the wake-up response signal, the charging device begins sending periodic basic charging signals to the AMP device to support normal operation of the power transmitter and power receiver of the AMP device.

[0106] At block 1102, the AP device may receive, from the AMP device, charging capability parameters of the AMP device, which are transmitted based on a periodic basic charging signal. The definition and selection of the periodic basic charging signal and the charging capability parameters of the AMP device may be similar to those described in the method described with respect to FIG. 6 , and for the sake of brevity, the specific details are not repeated. For example, the structure of a frame for carrying the charging capability parameters of the AMP device may be as shown in Table 2 above.

[0107] In some embodiments, the method may further include: sending the charging capability parameters of the charging device to the AMP device, wherein the definition and selection of the charging capability parameters of the charging device may be performed as those involved in the method described above with respect to Figure 6 , for example, the structure of the frame for carrying the charging capability parameters of the charging device may be as shown in Figure 7 .

[0108] In some embodiments, the method may further include: sending charging signal parameters to the charging device, wherein the charging signal parameters may be determined as those involved in the method described above with respect to FIG. 6 .

[0109] In some embodiments, the method may further include: sending an instruction message to the AMP device for instructing the AMP device to stop receiving the charging signal and keep the AMP device offline or powered off before receiving the next wake-up signal.

[0110] In some embodiments, when there are multiple AMP devices in a multi-charging link scenario, the charging device can establish a corresponding charging link with each of the AMP devices to charge the AMP device, and each charging link in the multiple charging links is indicated by a corresponding link ID identifier among the multiple link ID identifiers.

[0111] Figure 12 illustrates a flow chart illustrating how, in some embodiments of the present disclosure, charging signals and communication signals are transmitted in a time-division manner, when an AP device functions as a charging device and the charging signals and communication signals occur in the same frequency band. This flow chart of the present disclosure is applicable to the network architecture shown in Figure 1 and is used as an example for illustration, not limitation.

[0112] 12 , when the AP device detects the receiver of the AMP device within the communication range within the detection period after turning on its transmitter, the AP device, acting as a charging device, transmits a wake-up signal to the AMP device. The AMP device then transmits a wake-up response signal to the AP device in response to receiving the wake-up signal. Definitions and selections of the wake-up signal and the wake-up response signal may be similar to those described above with respect to the method of FIG. 6 , and for the sake of brevity, the details are not repeated here. Alternatively, when the AMP device competes for a transmission opportunity (TXOP) after receiving the wake-up signal, the AMP device may transmit an authentication request frame to the AP instead of the wake-up response signal.

[0113] Then, after receiving the authentication request frame, the AP device starts sending a first basic charging signal (e.g., basic charging signal 1#) to the AMP device. The definition and selection of the basic charging signal can be performed as described above in the method for Figure 6. For the sake of brevity, the details are not repeated here. After sending the first basic charging signal, the AP device waits for a fixed time interval and starts sending an authentication response frame, where the fixed time interval can be a short interframe space (SIFS), a PCF interframe space (PIFS), or a DCF interframe space (DIFS) specified by the standard. The AMP device (e.g., a receiver of the AMP device) can receive the authentication response frame sent by the AP device based on the received first basic charging signal.

[0114] However, the AP device may send a second basic charging signal (e.g., basic charging signal #2) to the AMP device at the beginning of the second cycle of the basic charging signal, and the AMP device may send an association request frame to the AP device when competing for a transmission opportunity based on the second basic charging signal, wherein the association request frame may carry the charging capability parameters of the AMP device, and the definition and selection of the charging capability parameters of the AMP device may be performed as those involved in the method described above for Figure 6. For the sake of brevity, the details are not repeated here.

[0115] After receiving the association request frame sent by the AMP device, the AP device may send a third basic charging signal (e.g., basic charging signal #3) to the AMP device at the beginning of the third cycle of the basic charging signal, and after waiting for the above-mentioned fixed time interval, start sending an association response frame, wherein the association response frame may include the charging capability parameters of the AP device and / or the AID or other unique identifier assigned to the AMP device. The AMP device (e.g., the receiver of the AMP device) may receive the association response frame sent by the AP device based on the received third basic charging signal. Therefore, the AP device and the AMP device can complete the exchange of charging capabilities through the association request frame and the association response frame.

[0116] The AP device may send a fourth basic charging signal (e.g., basic charging signal #4) to the AMP device at the beginning of the fourth cycle of the basic charging signal and, after waiting for the aforementioned fixed time interval, begin sending an inquiry frame. The inquiry frame may include inquiry information inquiring whether the AMP device requires charging negotiation and indicate the transmission opportunity (e.g., TXOP #1) allocated by the AP device to the AMP device. The AMP device may receive the inquiry frame based on the fourth basic charging signal.

[0117] The AP device may transmit a fifth basic charging signal (e.g., basic charging signal #5) to the AMP device at the beginning of the fifth cycle of the basic charging signal. The AMP device may then transmit a negotiation request frame to the AP device within the allocated transmission opportunity (TXOP #1) based on the fifth basic charging signal. The definition and selection of the negotiation request frame may be performed as described above with respect to the method described in FIG. 6 , and for the sake of brevity, the details are not repeated here. If the AP device is unable to respond to the negotiation request from the AMP device due to a need to perform a higher-priority communication transmission, the AP device may transmit a sixth basic charging signal (e.g., basic charging signal #6) to the AMP device at the beginning of the sixth cycle of the basic charging signal and, after waiting for a fixed time interval, transmit a negotiation response frame to the AMP device, notifying the AMP device that the AP device will stop transmitting the basic charging signal. The AMP device may receive the negotiation response frame based on the sixth basic charging signal and, after the AP device stops transmitting the basic charging signal, go offline or shut down until it receives the next wake-up signal. Furthermore, after a certain period of time, the AP device may again detect the AMP device's receiver and, upon detecting the AMP device, again transmit a wake-up signal to the AMP device. After receiving the wake-up signal, the AMP device may send a wake-up response signal to the AP device, wherein the wake-up response signal may carry the AID of the AMP device to identify the AMP device.

[0118] Since the AP device and the AMP device have completed the association process and the authentication process, the AP device can send a first basic charging signal to the AMP device and, after waiting for a fixed time interval, directly send an inquiry frame to the AMP device without having to perform the association process and / or the authentication process again. The inquiry frame can be performed as previously defined and selected for the inquiry frame. For example, the inquiry frame can include the transmission opportunity (TXOP#2) allocated by the AP to the AMP device. The AMP device can receive the inquiry frame based on the first basic charging signal.

[0119] The AP device may send a second basic charging signal (e.g., basic charging signal #2) to the AMP device at the start of the second cycle of the basic charging signal, and the AMP device may send a negotiation request frame to the AP device based on the second basic charging signal, wherein the definition and selection of the negotiation request frame may be performed as described above with respect to the method of FIG6 . The AP device receives and parses the negotiation request frame to learn that the AMP device requests a non-periodic charging signal.

[0120] The AP device can send a third basic charging signal to the AMP device at the beginning of the third cycle of the basic charging signal, and send a confirmation frame (e.g., ACK) to the AMP device after waiting for a fixed time interval. The confirmation frame notifies the AMP device that the AP agrees to the AMP's negotiation of the non-periodic charging signal.

[0121] The AP device, however, sends a non-periodic charging signal to the AMP device. This non-periodic charging signal has various parameters, such as a charging duration window N1 and a charging signal interval N2. After a certain time interval, the AP device sends a trigger frame to the AMP device. This trigger frame includes a transmission opportunity (TXOP#3) allocated by the AP device for the AMP device. The AMP device can report specific information, such as data #1 and data #2, to the AP device within the allocated transmission opportunity based on the non-periodic charging signal.

[0122] Based on the above solution of the present disclosure, by using an AP device as a charging device, charging signals and communication signals can be sent in the same frequency band based on a time-division method. The AMP device is discovered and awakened by the wake-up signal. The AP sends basic charging signals to support the AMP device to complete the subsequent authentication and association process. The AMP device sends the requested charging parameters to the AP device via a negotiation request frame. The AP device responds to the authentication request, association request, and negotiation request in the same frequency band.

[0123] In addition, through the above-mentioned scheme of the present disclosure, the AP device is supported to stop charging and notify the AMP device, and the AP device is also supported to agree to the negotiation of the AMP device and send the charging signal requested by the AMP device. The AMP device completes the transmission of its own data based on the negotiated charging signal.

[0124] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of the charging link of the AMP device, improve its own charging function to support the AMP device to access the WIFI wireless transmission network to realize the wireless communication function.

[0125] Figure 13 illustrates a flow chart illustrating how, in some embodiments of the present disclosure, a charging signal and a communication signal are transmitted in a frequency division manner when an AP device functions as a charging device and the charging signal and the communication signal occur in different frequency bands. This flow chart of the present disclosure is applicable to the network architecture shown in Figure 1 and is used as an example for illustration, but is not intended to be limiting.

[0126] 13 , when the AP device detects the receiver of the AMP device within the communication range within the detection period after turning on its transmitter, the AP device, as a charging device, sends a wake-up signal to the AMP device in the S1G frequency band, and then the AMP device sends a wake-up response signal to the AP device in the 2.4G frequency band in response to receiving the wake-up signal, wherein the definition and selection of the wake-up signal and the wake-up response signal may be performed as those involved in the method described above with respect to FIG. 6 , and for the sake of brevity, the details are not repeated here. Alternatively, if the AP device and the AMP device have completed the authentication process in the previous communication process, then when the AMP device competes for a transmission opportunity (TXOP) after receiving the wake-up signal, the AMP device may send an association request frame to the AP instead of the wake-up response signal or the authentication request frame, wherein the association request frame may carry the charging capability parameters of the AMP device, and the definition and selection of the charging capability parameters of the AMP device may be performed as those involved in the method described above with respect to FIG. 6 .

[0127] After receiving the association request frame, the AP device then begins sending a basic charging signal to the AMP device in the S1G band and sends an association response frame to the AMP device in the 2.4G band. The association response frame may carry the charging capability parameters of the charging device, which may be defined and selected as described above in the method described with respect to FIG. Therefore, the AP device and the AMP device can complete the exchange of charging capabilities through the association request frame and the association response frame.

[0128] After a certain time interval, the AP device can send a basic charging signal to the AMP device in the S1G band and an inquiry frame in the 2.4G band. The inquiry frame may include inquiry information asking the AMP device whether charging negotiation is required and indicates the transmission opportunity (e.g., TXOP#1) allocated by the AP device to the AMP device. The AMP device can receive the inquiry frame based on the basic charging signal.

[0129] After a certain time interval, the AP device can send a basic charging signal to the AMP device in the S1G frequency band, and the AMP device can send a negotiation request frame to the AP device in the 2.4G frequency band within the allocated transmission opportunity (TXOP#1) based on the basic charging signal, wherein the definition and selection of the negotiation request frame can be carried out as those involved in the method described above for Figure 6. For the sake of brevity, the details are not repeated here.

[0130] After receiving the negotiation request frame, the AP device may transmit a basic charging signal to the AMP device in the S1G band and, within the allocated transmission opportunity (TXOP #1), transmit a negotiation response frame to the AMP device in the 2.4G band. The negotiation response frame includes the charging signal parameters suggested by the AP device. The AMP device may receive the negotiation response frame based on the basic charging signal and update the charging negotiation request frame based on the charging signal parameters suggested in the negotiation response frame.

[0131] After a certain time interval, the AP device can send a basic charging signal to the AMP device in the S1G band. Based on this basic charging signal, the AMP device can send an updated negotiation request frame to the AP device in the allocated transmission opportunity (TXOP #1) in the 2.4G band. During the negotiation process of the negotiation request frame and negotiation response frame, the request, response, and update of charging signal parameters can be performed multiple times.

[0132] After a certain time interval, the AP device agrees to the charging signal parameters requested by the AMP device, and sends a basic charging signal to the AMP device in the S1G band and sends a confirmation frame (such as ACK) to the AMP device in the 2.4G band. The confirmation frame notifies the AMP device that the AP agrees to the AMP's negotiation of the charging signal parameters.

[0133] However, the AP device sends a negotiated charging signal to the AMP device, where the negotiated charging signal can be a periodic charging signal with a charging duration window of N1ms and a charging signal interval of N2ms. After a certain time interval, the AP device sends a trigger frame to the AMP device, where the trigger frame includes a transmission opportunity (TXOP#2) allocated by the AP device for the AMP device. The AMP device can report specific information, such as data #1 and data #2, to the AP device within the allocated transmission opportunity based on the negotiated charging signal.

[0134] In addition, after receiving the above specific information, the AP device may send an ACK to the AMP device.

[0135] After a certain time interval, the AP device can send an inquiry frame to the AMP device again and allocate a transmission opportunity (TXOP #3) for the AMP device. The AMP device can then negotiate the charging signal parameters again based on the inquiry frame and send a negotiation request frame to the AP device including the requested charging signal parameters, where the requested charging signal parameters can be a non-periodic charging signal. After agreeing to the negotiation request, the AP device can update the charging signal to provide basic power supply for the AMP device and support the AMP device in performing subsequent operations.

[0136] Based on the above-mentioned solution of the present disclosure, by using an AP device as a charging device, charging signals and communication signals can be sent in different frequency bands based on a frequency division method. The wake-up signal discovers and wakes up the AMP device. The AP sends a basic charging signal to support the AMP device in completing the subsequent authentication and association process. The AMP device and the AP device can complete the exchange of charging capabilities through the charging capability element in the association request frame and the association response frame. The AMP device and the AP device can complete the negotiation of charging signal parameters through the charging parameter element in the negotiation request frame and the negotiation response frame.

[0137] In addition, through the above-mentioned scheme of the present disclosure, the negotiation of charging signal parameters between the AP device and the AMP device and the re-update of the charging signal parameters are supported, and the charging signal requested by the AMP device is sent in a timely manner. The AMP device completes the transmission of its own data based on the negotiated charging signal.

[0138] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of the charging link of the AMP device, improve its own charging function to support the AMP device to access the WIFI wireless transmission network to realize the wireless communication function.

[0139] Figure 14 illustrates a flow chart of transmitting charging signals and communication signals when an auxiliary node acts as a charging device according to some embodiments of the present disclosure. This flow chart of the present disclosure can be applied to the network architecture shown in Figure 2 and is described using the corresponding network architecture shown in Figure 2 as an example, but is not intended to be limiting.

[0140] 14 , after turning on its transmitter or receiving a detection indication from an AP device, the auxiliary node detects the receiver of an AMP device within the communication range during a detection period. After successfully detecting the AMP device, the auxiliary node, acting as a charging device, transmits a wake-up signal to the AMP device (e.g., the AMP device's receiver), and the AMP device (e.g., the AMP device's transmitter) then transmits a wake-up response signal to the AP device. Definitions and selections of the wake-up signal and the wake-up response signal may be similar to those described above with respect to the method of FIG. 6 , and for the sake of brevity, details are not repeated here.

[0141] After receiving the wake-up response signal, the auxiliary node starts to send a periodic basic charging signal to the AMP device, and the AMP device can realize the normal operation of its transmitter and receiver based on the periodic basic charging signal to complete the authentication process and association process between the AP device and the AMP device. In some embodiments, the AMP device sends an authentication request frame to the AP device based on the reception of the periodic basic charging signal, and the AP device can send an authentication response frame to the AMP device to complete the authentication process between the AP device and the AMP device. In some embodiments, the AMP device sends an association request frame carrying a charging capability element to the AP device based on the reception of the periodic basic charging signal, and the AP device can send an association response frame carrying a charging capability element to the AMP device to complete the association process between the AP device and the AMP device. The charging capability parameters of the auxiliary node can be pre-stored in the local memory of the AP device so that they can be obtained by querying locally by the AP device. Alternatively, if the AP device does not find the charging capability parameters of the auxiliary node locally, the AP device can communicate with the auxiliary node through a communication link to obtain the charging capability parameters of the auxiliary node from the auxiliary node.

[0142] After completing the authentication and association processes, the AP device may send an inquiry frame to the AMP device. The inquiry frame may include inquiry information asking the AMP device whether charging negotiation is required and indicate the transmission opportunity allocated by the AP device to the AMP device. The AMP device may receive the inquiry frame based on the basic charging signal and send a negotiation request frame to the AP device. The negotiation request frame includes feedback indicating that charging signal negotiation is not currently required and requests the AP device to send the inquiry frame again after Nms have passed.

[0143] After Nms, the AP device sends an inquiry frame to the AMP device again, and the AMP can respond to the inquiry frame via a negotiation request frame, as described in the negotiation request frame described in Figures 6 and 12. For example, the AMP device can carry the requested charging signal parameters in the negotiation request frame, and the AP device can agree to the charging signal parameters requested by the AMP device and send an acknowledgment frame (e.g., ACK) to the AMP device. The acknowledgment frame notifies the AMP device that the AP agrees to the AMP's negotiation of the charging signal parameters. At the same time, the AP device also sends the negotiated charging signal parameters to the auxiliary node to instruct the auxiliary node to modify its charging signal. Upon receiving the above charging signal parameters, the auxiliary node modifies the charging signal to the negotiated charging signal.

[0144] However, the assisting node sends the negotiated charging signal to the AMP device. The AP device sends a trigger frame to the AMP device, wherein the trigger frame includes the transmission opportunity allocated by the AP device to the AMP device, and the AMP device can report specific information, such as data, to the AP device within the allocated transmission opportunity based on the negotiated charging signal.

[0145] Based on the above-mentioned solution of the present disclosure, the auxiliary node can be used as a charging device. The wake-up signal discovers and wakes up the AMP device. The auxiliary node sends periodic basic charging signals to support the AP device and AMP device to complete the subsequent authentication and association process. The AMP device and the AP device can complete the negotiation of charging signal parameters through the charging parameter elements in the negotiation request frame and the negotiation response frame, and send the negotiated charging signal parameters to the auxiliary node to realize the control and management of the auxiliary node's charging link.

[0146] In addition, through the above-mentioned solution of the present disclosure, the negotiation of charging signal parameters between the AP device and the AMP device is supported, and the negotiated charging signal parameters are sent to the auxiliary node, and the AMP device completes the transmission of its own data based on the negotiated charging signal.

[0147] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of the charging link of the AMP device, improve its own charging function to support the AMP device to access the WIFI wireless transmission network to realize the wireless communication function.

[0148] Figure 15 illustrates a flow chart of transmitting charging signals and communication signals when a relay node acts as a charging device according to some embodiments of the present disclosure. This flow chart of the present disclosure can be applied to the network architecture shown in Figure 3 and is described using the corresponding network architecture shown in Figure 3 as an example, but is not intended to be limiting.

[0149] 15 , the AP device sends a detection instruction to the relay node, instructing the relay node to detect the receiver of an AMP device within communication range during a detection period. After successfully detecting the AMP device, the relay node, acting as a charging device, sends a wake-up signal to the AMP device, and the AMP device then sends a wake-up response signal to the AP device. The definition and selection of the wake-up signal and the wake-up response signal can be performed similarly to those described above with respect to the method of FIG. 6 , and for the sake of brevity, the details are not repeated here.

[0150] After receiving the wake-up response signal, the relay node reports a detection response to the AP device to notify the AP device of the detection and wake-up of the AMP device, and starts sending a periodic basic charging signal to the AMP device, and the AMP device can realize the normal operation of its transmitter and receiver based on the periodic basic charging signal. After receiving the detection response, the AP device sends a trigger frame to the relay node to allocate a transmission opportunity (TXOP) to the relay node, wherein the relay node and the AMP device can share the transmission opportunity to support the reporting of the charging capability parameters and charging signal parameters of the AMP device. In some embodiments, the AMP device reports the charging capability parameters of the AMP device to the AP device via the relay node based on the receipt of the periodic basic charging signal. The charging capability parameters of the relay node and the charging capability parameters of the AMP device can be reported to the AP device together through an aggregated frame or can be reported to the AP device separately through different frames. The definition and selection of the charging capability parameters of the relay node and the charging capability parameters of the AMP device can be carried out as those involved in the method described above for Figure 6. For the sake of brevity, the details are not repeated here.

[0151] After receiving the charging capability parameters of the relay node and the charging capability parameters of the AMP device, the AP device may send a query frame to the AMP device via the relay node. The query frame may include query information asking the AMP device whether charging negotiation is required and indicating the transmission opportunity (TXOP) allocated by the AP device to the AMP device. The AMP device may receive the query frame based on the received basic charging signal and send a negotiation request frame to the AP device via the relay node, as described in the negotiation request frame described in Figures 6 and 12. For example, the AMP device may carry the requested charging signal parameters in the negotiation request frame, and the AP device may agree to the charging signal parameters requested by the AMP device and send an acknowledgment frame (e.g., ACK) to the AMP device via the relay node. The acknowledgment frame notifies the AMP device that the AP agrees to the AMP's negotiation of the charging signal parameters. At the same time, upon receiving the acknowledgment frame, the relay node modifies its charging signal to the negotiated charging signal. Based on the negotiated charging signal sent by the relay node, the AMP device receives the trigger frame sent by the AP device via the relay node and reports data to the AP device via the relay node according to the TXOP allocated by the AP device. The AP device may perform block acknowledgment uniformly.

[0152] Based on the above scheme of the present disclosure, it is realized that the relay node can be used as a charging device. The AP device can instruct the relay node to discover and wake up the AMP device through a wake-up signal. The relay node sends a periodic basic charging signal to the AMP device and reports the charging capability parameters of the AMP device to the AP device to help the AP device make decisions or feedback in the subsequent negotiation process, wherein the above-mentioned charging capability can be reported through aggregated frames or different frames. The AMP device negotiates the charging signal parameters with the AP device through the relay node, and the transmission of the charging signal parameters can be completed through the charging parameter elements in the negotiation request frame and the negotiation response frame. Since the entire negotiation process passes through the relay node, after the negotiation is completed, the relay node can perform the transmission of the negotiated charging signal based on the negotiated charging signal parameters. The AP device can implement management and control of the charging link of the relay node.

[0153] Furthermore, the above-described solution of the present disclosure supports relay nodes for charging AMP devices and assisting AMP devices in communicating with AP devices. The charging link and communication link can be implemented in a time-division manner within the same frequency band or in a frequency-division manner within different frequency bands. The AMP device transmits its own data based on the negotiated charging signal sent by the relay node.

[0154] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of the charging link of the AMP device, improve its own charging function to support the AMP device to access the WIFI wireless transmission network to realize the wireless communication function.

[0155] FIG16 illustrates a flow chart for transmitting charging signals and communication signals when a backscatter reader is used as a charging device according to some embodiments of the present disclosure. This flow chart of the present disclosure can be applied to the network architecture shown in FIG4 and is described using the corresponding network architecture shown in FIG4 as an example, but is not intended to be limiting.

[0156] Referring to Figure 16 , the charging signal and communication signal transmission process of this disclosed solution is substantially identical to that of the solution shown in Figure 14 , and therefore details will not be repeated here. This solution differs from the solution shown in Figure 14 in that, before each communication with an AMP device is required, the AP device must notify the backscatter reader to approach the AMP device to provide the charging signal, thereby ensuring the proper functioning of the AMP device's transmitter and / or receiver. Furthermore, whenever the backscatter reader needs to move, it must communicate with the AP device to notify the AP that the AMP device is no longer within its charging range and therefore lacks communication capability. Under these limitations, the AMP device cannot proactively initiate communication with the AP; all communications are initiated by the AP, which instructs the backscatter reader to power it. Once the AMP device comes online, it can negotiate charging signal parameters with the AP through the aforementioned charging and communication signal transmission process. After completing the negotiation, the AP device can notify the backscatter reader to change and store the negotiated charging signal parameters. During this period, the backscatter reader can be moved, and after charging is restarted, the AMP device can be charged according to the stored negotiated charging signal until the AP device gives a new indication of the charging signal parameters.

[0157] Based on the above-mentioned solution of the present disclosure, a backscatter reader can be used as a charging device to charge an AMP device via backscatter. The AMP device and the AP device can complete the negotiation of charging signal parameters through the charging parameter elements in the negotiation request frame and the negotiation response frame. The AP device then sends the negotiated charging signal parameters to the backscatter reader to control and manage the backscatter reader's charging signal. Before the AP device communicates with the AMP device, the AP device communicates with the backscatter reader to prompt it to approach the AMP device to be charged, ensuring that the AMP device receives the charging signal and can activate the AMP device's transmitter or receiver to complete data transmission.

[0158] Furthermore, due to the unique nature of backscatter charging, the backscatter reader and the AMP must remain within a relatively small range to ensure charging. If the backscatter reader moves, it must notify the AP that the AMP is out of range and unable to support data communication, thus preventing the AP from wasting transmission resources.

[0159] According to the above solution of the present disclosure, the backscatter reader stores the charging parameters negotiated between the AP and the AMP, ensuring that each contact with the AMP sends a charging signal that meets the AMP's requirements. The relevant parameters for the charging link are not updated and stored until new instructions are received from the AP.

[0160] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of the charging link of the AMP device, improve its own charging function to support the AMP device to access the WIFI wireless transmission network to realize the wireless communication function.

[0161] FIG17 illustrates a flow chart of transmitting charging signals and communication signals in the case of multiple charging links according to some embodiments of the present disclosure.

[0162] The flowchart of the present disclosure may be applicable to the network architecture shown in FIG5 and is described by taking the corresponding network architecture shown in FIG5 as an example but is not restrictive.

[0163] 17 , the AP device detects the AMP device 102a and the AMP device 102b within its charging range and sends a wake-up signal to the AMP device 102a and the AMP device 102b, and the AMP device 102 and the AMP device 102 respectively send a wake-up response signal to the AP device, for example, a wake-up signal for the AMP device 102a (which includes the MAC address / AID of the AMP device 102a, etc.) and a wake-up signal for the AMP device 102b (which includes the MAC address / AID of the AMP device 102b, etc.).

[0164] After receiving the wake-up response signal, the AP device sends a periodic basic charging signal A to AMP device 102a and AMP device 102b to support the normal operation of the transmitters and receivers of AMP device 102a and AMP device 102b. This allows the AP device to exchange charging capability parameters with AMP device 102a and AMP device 102b through authentication and / or association processes between AP device 102a and AMP device 102b, respectively, as described in the charging capability parameter exchange process in Figures 12 and 13. For the sake of brevity, the details are not repeated. For this purpose, the auxiliary node detects the presence of AMP device 102c within its charging range and sends a wake-up signal to AMP device 102c. In response to receiving the wake-up signal, AMP device 102c sends a wake-up response signal to the auxiliary node. After receiving the wake-up response signal, the auxiliary node starts to send a periodic basic charging signal B to the AMP device 102c to support the AMP device 102c to send its charging capability parameters to the AP device and receive the charging capability parameters of the auxiliary node sent by the AP device to complete the exchange of charging capability parameters between the auxiliary node and the AMP device 102c, as described in the charging capability parameter exchange process of Figure 14. For the sake of brevity, the details will not be repeated.

[0165] In this embodiment, the definition and selection of basic charging signal A and basic charging signal B may be similar to those described in the method of FIG6 , wherein the charging window of basic charging signal A is smaller than the charging window of basic charging signal B and the charging interval of basic charging signal A is larger than the charging interval of basic charging signal B.

[0166] The AP device can send an inquiry frame to the AMP device 102a and allocate a transmission opportunity (TXOP) for it to respond to the inquiry frame. The AMP device 102a can send a negotiation request frame including a request for a non-periodic basic charging signal to the AP device within the allocated transmission opportunity, wherein the definition and selection of the negotiation request frame can be similar to those described in the method of Figure 6. The AP agrees to the request of the AMP device 102a and allocates a charging link ID1 to it, and sends the negotiated charging signal to the AMP device 102a. The AMP device 102a can report data to the AP device based on the negotiated charging signal. Since the charging signal is non-periodic, the AMP device 102a can remain offline after completing the data reporting and receiving the ACK from the AP device until the next wake-up signal is received.

[0167] In addition, the AP device may send an inquiry frame to the AMP device 102b and allocate a transmission opportunity (TXOP) for it to respond to the inquiry frame. The AMP device 102b may send a negotiation request frame including feedback requesting the AP device to maintain the current basic charging signal A to the AP device within the allocated transmission opportunity, wherein the definition and selection of the negotiation request frame may be similar to those described in the method of FIG6 . The AP agrees to the request of the AMP device 102b and allocates the charging link ID 2 to it, and keeps sending the basic charging signal A to the AMP device 102b to support the periodic data transmission of the AMP device 102b until the following conditions occur:

[0168] The AP device queries the AMP device 102b next time to obtain the newly negotiated charging signal parameters and update the parameters of the charging link ID2;

[0169] The AP device decides to modify the parameters of the current charging link and notifies the AMP device 102b of the parameters of the new charging link ID2; or

[0170] The AP device decides to stop sending charging signals and notifies the AMP device 102b of the abandoned charging link ID 2. The AMP device 102b goes offline until it receives the next wake-up signal.

[0171] In addition, the AP device can send an inquiry frame to the AMP device 102c and allocate a transmission opportunity (TXOP) for it to respond to the inquiry frame. The AMP device 102c can send a negotiation request frame including a request for the auxiliary node to send a periodic charging signal to the AP device within the allocated transmission opportunity, wherein the definition and selection of the negotiation request frame can be similar to those described in the method of Figure 6. The AP agrees to the request of the AMP device 102c and allocates charging link ID3 to it, and notifies the auxiliary node to adjust its charging signal and send the negotiated charging signal parameters to the auxiliary node. The auxiliary node sends a negotiated charging signal to the AMP device 102c according to the negotiated charging signal parameters, and the AMP device 102c can complete the periodic data transmission based on the negotiated charging signal until:

[0172] The AP device queries the AMP device 102c next time to obtain the newly negotiated charging signal parameters and update the parameters of the charging link ID3;

[0173] The AP device decides to modify the parameters of the current charging link and notifies the AMP device 102c of the parameters of the new charging link ID3; or

[0174] The AP device decides to stop sending charging signals and notifies the AMP device 102c of the abandoned charging link ID3. The AMP device 102c goes offline until it receives the next wake-up signal.

[0175] Based on the above-mentioned solution of the present disclosure, in a network topology where multiple charging links exist, the AP device can uniformly manage and control all charging links through the charging link ID. The establishment of each charging link can include one or more steps of the wake-up phase, the capability exchange phase, the parameter negotiation phase, and the charging transmission phase. After completing the parameter negotiation, the AP device will assign a charging link ID to it. The charging link ID corresponds to its unique charging signal parameters. The AP allocates TXOPs to multiple AMP devices in a polling manner, so that the AMP devices can negotiate the charging signal based on the allocated transmission opportunities. When the charging link signal changes, the AP device can notify the corresponding AMP device of the real-time changes in its charging link through the charging link ID, where the changes may include parameter adjustment, renegotiation, charging suspension, link abandonment, etc. By managing and controlling multiple charging links, multiple AMP devices can negotiate the parameters of their charging links to achieve their transmission tasks.

[0176] Therefore, the above-mentioned solution of the present disclosure can realize the control and management of multiple charging links of multiple AMP devices, improve its own charging function to support AMP devices to access the WIFI wireless transmission network to realize wireless communication function.

[0177] FIG18 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. The embodiments described herein can be implemented into a system using any appropriately configured hardware and / or software. FIG18 illustrates system 700, including radio frequency (RF) circuitry 710, baseband circuitry 720, processing unit 730, memory / storage 740, display 750, camera 760, sensor 770, and input / output (I / O) interface 780, coupled to one another as shown.

[0178] The processing unit 730 may include circuits, such as, but not limited to, one or more single-core or multi-core processors. The processor may include any combination of general-purpose processors and special-purpose processors, such as a graphics processor and an application processor. The processor may be coupled to a memory / storage and configured to execute instructions stored in the memory / storage to enable various applications and / or operating systems running on the system. The RF circuit 710, baseband circuit 720, processing unit 730, memory / storage 740, display 750, camera 760, sensor 770, and I / O interface 780 are well-known components of the system 700, such as, but not limited to, laptop computing devices, tablet computing devices, netbooks, ultrabooks, smartphones, etc. In addition, instructions as a software product may be stored in a computer-readable storage medium. The software product in the computer is stored in a storage medium and includes multiple commands for a computing device (such as a personal computer, server, or network device) to execute all or some of the steps disclosed in the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other types of media capable of storing program codes.

[0179] The embodiments of the present disclosure are a combination of techniques / processes that may be employed in 3GPP specifications to create a final product.

[0180] Unless explicitly stated to the contrary, the above-described embodiments / examples / implementations may be combined with any other embodiment(s) / examples / implementations.

[0181] An embodiment of the present application further provides a charging device, which may include a processor configured to execute the method disclosed in the above embodiment.

[0182] An embodiment of the present disclosure further provides an ambient energy (AMP) device, which may include a processor configured to execute the method disclosed in the above embodiment.

[0183] An embodiment of the present disclosure further provides an access point (AP) device, which may include a processor configured to execute the method disclosed in the above embodiments.

[0184] An embodiment of the present disclosure further provides a chip, which may include a processor configured to call and run a computer program stored in a memory, so that a device in which the chip is installed executes the method disclosed in the above embodiment.

[0185] The embodiments of the present disclosure further provide a computer-readable storage medium, in which a computer program is stored, which enables a computer to execute the method disclosed in the above embodiments.

[0186] The embodiments of the present disclosure further provide a computer program product, wherein a computer program is stored, and the computer program enables a computer to execute the method disclosed in the above embodiments.

[0187] The embodiments of the present disclosure further provide a computer program, which enables a computer to execute the method disclosed according to the above embodiments.

[0188] While the present disclosure has been described in connection with what is considered to be the most practical and preferred embodiment, it is to be understood that the disclosure is not limited to the disclosed embodiment, but is intended to cover various arrangements embodied within the broadest interpretation of the appended claims.

Claims

1. A method for implementing a charging link performed by a charging device, comprising: sending a wake-up signal to the AMP device in response to detecting an ambient energy AMP device; and sending a periodic basic charging signal to the AMP device in response to receiving a wake-up response signal from the AMP device.

2. The method according to claim 1 further comprises: Providing charging capability parameters of the charging device.

3. The method according to claim 2, wherein, The charging device is one of an access point AP device, an auxiliary node, a relay node, and a backscatter reader.

4. The method according to claim 3, wherein, The charging device is the AP device or the relay node, and providing the charging capability parameters of the charging device includes: directly sending the charging capability parameters of the charging device to the AMP device.

5. The method according to claim 3, wherein, The charging device is the auxiliary node or the backscatter reader, and providing the charging capability parameters of the charging device includes: sending the charging capability parameters of the charging device to the AMP device through the AP device.

6. The method according to any one of claims 2-5, wherein, The charging capability parameters include at least one of the following: S1G support parameters, maximum transmit power, maximum transmission distance, maximum number of transmit antennas, transmit antenna identifier, and maximum number of charge sessions or links that can be supported.

7. The method according to any one of claims 2-6, wherein providing the charging capability parameters of the charging device includes: providing a frame for carrying the charging capability parameters; wherein the frame for carrying the charging capability parameters includes a charging capability element, the charging capability element includes an element ID field and a charging capability parameter field, wherein the element ID field indicates the ID identification of the charging capability element, and the charging capability parameter field represents the charging capability parameters of the charging device.

8. The method according to claim 7, wherein The charging capability element further includes a length field and an element ID extension field; wherein the length field represents the length of the remaining fields for carrying the charging capability element except for the element ID field and the length field, the element ID extension field indicates whether the charging capability element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging capability parameter field have a variable length.

9. The method according to claim 4, further comprising: receiving the charging capability parameters of the AMP device.

10. The method according to claim 9, wherein, The charging capability parameters of the AMP device include at least one of the following: S1G support parameters, maximum receive power, maximum transmission distance, maximum number of receive antennas, receive antenna identifier, and maximum number of charge sessions or links that can be supported.

11. The method according to claim 9 or 10, wherein, Receiving the charging capability parameters of the AMP device includes receiving a frame for carrying the charging capability parameters of the AMP device; wherein the frame for carrying the charging capability parameters of the AMP device includes a charging capability element, the charging capability element includes an element ID field and a charging capability parameter field, wherein the element ID field indicates the ID identification of the charging capability element, and the charging capability parameter field represents the charging capability parameters of the AMP device.

12. The method according to claim 11, wherein The charging capability element for carrying the charging capability parameters of the AMP device further includes a length field and an element ID extension field; Wherein, the length field represents the length of the remaining fields of the charging capability element except for the element ID field and the length field, the element ID extension field represents whether the charging capability element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging capability parameter field have a variable length.

13. The method according to claim 3, further comprising: Sending a negotiated charging signal determined based on the charging signal parameters to the AMP device, Wherein, the charging signal parameters are determined based on the negotiation between the AP device and the AMP device.

14. The method according to claim 13, wherein, The charging device is the AP device, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device, wherein the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receiving an inquiry response frame carrying feedback that does not require negotiation from the AMP device within the TXOP; Sending an acknowledgment frame that does not require negotiation to the AMP device; and Based on the acknowledgment frame, maintaining the periodic basic charging signal to charge the AMP device.

15. The method according to claim 13, wherein The charging device is the AP device, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device, wherein the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receiving a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device within the TXOP, wherein the feedback results include that the charging signal parameters need to be immediately modified and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Sending a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device to the AMP device; and Determining the charging signal parameters based on the negotiation request frame and the negotiation response frame.

16. The method according to claim 13, wherein, The charging device is the AP device, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device, wherein the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receiving a negotiation request frame carrying feedback of a delayed inquiry and the requested charging signal parameters from the AMP device within the TXOP, wherein the charging signal parameters further include at least one of the following: delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Send a negotiation response frame including one of the following to the AMP device: Confirmation information including: accepting the delay inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP to the AMP device; and Rejection information and the TXOP allocated to the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameters.

17. The method according to claim 13, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receiving, via the relay node within the TXOP, an inquiry response frame carrying feedback indicating no need for negotiation from the AMP device; Sending a confirmation frame indicating no need for negotiation to the relay node; and Based on the confirmation frame, the relay node maintains the periodic basic charging signal to charge the AMP device.

18. The method according to claim 13, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receiving, within the TXOP via the relay node, a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device, where the feedback results include the need to immediately modify the charging signal parameters and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Sending a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device to the AMP device via the relay node; Determining the charging signal parameters based on the negotiation request frame and the negotiation response frame; and Sending a confirmation frame carrying the charging signal parameters to the relay node.

19. The method according to claim 13, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Sending an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receiving, within the TXOP via the relay node from the AMP, a negotiation request frame carrying feedback of a delay inquiry and the requested charging signal parameters, where the charging signal parameters further include at least one of the following: delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Send a negotiation response frame including one of the following to the AMP device via the relay node: Confirmation information including: accepting the delay inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP to the AMP device; and Rejection information and the TXOP allocated to the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameters.

20. The method according to claim 15 or 18, wherein, The response result includes response information of one of the following: Accept the modification of the charging signal parameters and use the modified charging signal parameters as the charging signal parameters; Do not accept the modification of the charging signal parameters and send the charging signal parameters recommended by the AP and the TXOP allocated to the AMP device to the AMP device in the negotiation response frame to continue negotiating the charging signal parameters; and Reject the modification of the charging signal parameters and maintain the periodic basic charging signal to charge the AMP device.

21. The method according to claim 13, wherein The charging device is the auxiliary node or the backscatter reader, and the method further includes: Receiving the charging signal parameters determined based on the negotiation between the AMP device and the AP device; and Sending a negotiated charging signal determined based on the charging signal parameters to the AMP device.

22. The method according to any one of claims 13-21, wherein, The charging signal parameters include at least one of the following: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging duration window, charging signal interval, charging duration window offset, charging delay.

23. The method according to any one of claims 13-22, wherein, Determining the charging signal parameters includes determining a frame for carrying the charging signal parameters; wherein, the frame for carrying the charging signal parameters includes a charging parameter element, the charging parameter element includes an element ID field and a charging signal parameter field, the element ID field represents the ID identification of the element, and the charging signal parameter field represents the charging signal parameters requested by the AMP device or the charging signal parameters recommended by the AP device.

24. The method according to claim 23, wherein, The charging parameter element further includes a length field and an element ID extension field; wherein, the length field represents the length of the remaining fields of the charging parameter element except the element ID field and the length field, the element ID extension field represents whether the charging parameter element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging signal parameter field have a variable length.

25. The method according to any one of claims 13-24 further comprises: Adjust the negotiated charging signal in response to receiving new charging parameters or a new charging indication.

26. The method according to claim 3, wherein, When the auxiliary node is the backscatter reader, provide electrical energy to the AMP device through backscatter charging.

27. The method according to any one of claims 1 - 26, wherein, When there are multiple said AMP devices in a multi-charging link scenario, the charging device can establish corresponding charging links with each of the AMP devices to charge the AMP device, and each charging link in the multi-charging links is indicated by a corresponding link ID among multiple link IDs.

28. The method according to any one of claims 1-27, wherein, Each of the periodic basic charging signals includes at least one of the following parameters: the transmission power of the charging device, the basic signal power, the modulation method, the transmission frequency band, the identifier of the charging device, the charging duration window, the charging duration window offset, and the charging signal interval.

29. A method for implementing a charging link performed by an ambient energy AMP device, including: In response to receiving the wake-up signal, sending a wake-up response signal to the charging device; And Receiving a periodic basic charging signal from the charging device.

30. The method according to claim 29, further including: Based on the periodic basic charging signal, sending the charging parameters of the AMP device to an access point AP device.

31. The method according to claim 30, wherein, The charging parameters include the charging capability parameters of the AMP device.

32. The method according to claim 31, wherein The charging capability parameters include at least one of the following: S1G support parameter, maximum received power, maximum transmission distance, maximum number of receiving antennas, receiving antenna identifier, and maximum number of charge sessions or links that can be supported.

33. The method according to claim 31 or 32, wherein Sending the charging parameters includes: sending a frame for carrying the charging capability parameters; Wherein, the frame for carrying the charging capability parameters includes a charging capability element, and the charging capability element includes an element ID field and a charging capability parameter field, where, The element ID field indicates the ID identification of the charging capability element, and the charging capability parameter field represents the charging capability parameters of the AMP device.

34. The method according to claim 33, wherein The charging capability element further includes a length field and an element ID extension field; Wherein, the length field represents the length of the remaining fields of the charging capability element except for the element ID field and the length field, the element ID extension field indicates whether the charging capability element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging capability parameter field have a variable length.

35. The method according to claim 30, further comprising: Based on the periodic basic charging signal, receiving the charging capability parameters of the charging device from the AP device.

36. The method according to claim 35, wherein The charging capability parameters include at least one of the following: S1G support parameter, maximum transmission power, maximum transmission distance, maximum number of transmitting antennas, transmitting antenna identifier, and maximum number of charge sessions or links that can be supported.

37. The method according to claim 35 or 36, wherein, Receiving the charging capability parameters includes receiving a frame for carrying the charging capability parameters; Wherein, the frame for carrying the charging capability parameters includes a charging capability element, and the charging capability element includes an element ID field and a charging capability parameter field, where the element ID field indicates the ID identification of the charging capability element, and the charging capability parameter field represents the charging capability parameters of the charging device.

38. The method according to claim 37, wherein The charging capability element further includes a length field and an element ID extension field; Wherein, the length field represents the length of the remaining fields of the charging capability element except for the element ID field and the length field, the element ID extension field represents whether the charging capability element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging capability parameter field have a variable length.

39. The method according to claim 30, wherein The charging device is one of the AP device, the auxiliary node, and the relay node.

40. The method according to claim 30, wherein, The charging parameter includes the charging signal parameter requested by the AMP device.

41. The method according to claim 40, wherein, The charging signal parameter includes at least one of the following: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging duration window, charging signal interval, charging duration window offset, charging delay.

42. The method according to claim 40 or 41, wherein Sending the charging parameter includes: sending a frame for carrying the charging signal parameter; Wherein, the frame for carrying the charging signal parameter includes a charging parameter element, the charging parameter element includes an element ID field and a charging signal parameter field, the element ID field represents the ID identification of the element, and the charging signal field represents the charging signal parameter requested by the AMP device.

43. The method according to claim 42, wherein, The charging parameter element further includes a length field and an element ID extension field; Wherein, the length field represents the length of the remaining fields of the charging parameter element except for the element ID field and the length field, the element ID extension field represents whether the charging parameter element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging signal parameter field have a variable length.

44. The method according to any one of claims 30 - 43, wherein, Sending the charging parameter of the AMP includes: Sending the charging capability parameter of the AMP device to the AP device; and Sending the charging signal parameter requested by the AMP device to the AP device.

45. The method according to claim 44, further comprising: Receiving a negotiated charging signal determined based on the charging signal parameter from the charging device, wherein the charging signal parameter is determined based on the negotiation between the AP device and the AMP device.

46. The method according to claim 45, wherein, The charging device is the AP device, and determining the charging signal parameter includes: Receiving an inquiry frame from the AP device, wherein the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Sending an inquiry response frame carrying a feedback that does not require negotiation to the AP device within the TXOP; Receiving an acknowledgment frame that does not require negotiation from the AP device; Based on the acknowledgment frame, maintaining the periodic basic charging signal to charge the AMP device.

47. The method according to claim 45, wherein, The charging device is the AP device, and determining the charging signal parameter includes: Receiving an inquiry frame from the AP device, wherein the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Send a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device within the TXOP to the AP device, where the feedback results include that the charging signal parameters need to be immediately modified and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation mode, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Receive a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device from the AP device; Determine the charging signal parameters based on the negotiation request frame and the negotiation response frame.

48. The method according to claim 45, wherein, The charging device is the AP device, and determining the charging signal parameters includes: Receive an inquiry frame from the AP device, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Send a negotiation request frame carrying the feedback of the delayed inquiry and the requested charging signal parameters to the AP device within the TXOP, where the charging signal parameters further include at least one of the following: delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Receive a negotiation response frame from the AP device including one of the following: Confirmation information including: accepting the delayed inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP for the AMP device; and Rejection information and the TXOP allocated for the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameters.

49. The method according to claim 45, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Receive an inquiry frame from the AP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Send an inquiry response frame carrying feedback of no need for negotiation to the AP device via the relay node within the TXOP; The AP device sends a confirmation frame of no need for negotiation to the relay node; The relay node maintains the periodic basic charging signal to charge the AMP device based on the confirmation frame.

50. The method according to claim 45, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Receive an inquiry frame from the AP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Within the TXOP, send a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device to the AP device via the relay node, where the feedback results include that the charging signal parameters need to be immediately modified and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Receive a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device from the AP device via the relay node; The AP device determines the charging signal parameters based on the negotiation request frame and the negotiation response frame; and The AP device sends an acknowledgment frame carrying the charging signal parameters to the relay node.

51. The method according to claim 45, wherein, The charging device is the relay node, and determining the charging signal parameters includes: Receive an inquiry frame from the AP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Within the TXOP, send a negotiation request frame carrying the feedback of the delayed inquiry and the requested charging signal parameters to the AP device via the relay node, where the charging signal parameters further include at least one of the following: delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Receive a negotiation response frame from the AP device via the relay node including one of the following: Confirmation information including: accepting the delayed inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP for the AMP device; and Rejection information and the TXOP allocated for the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameters.

52. The method according to claim 45, wherein, The charging device is the auxiliary node or the backscatter reader, and the charging signal parameters are determined based on the negotiation between the AP device and the AMP device.

53. The method according to claim 47 or 50, wherein, The response result includes response information including one of the following: Accepting the modification of the charging signal parameters to use the modified charging signal parameters as the charging signal parameters; Not accepting the modification of the charging signal parameters and sending the charging signal parameters recommended by the AP and the TXOP allocated for the AMP device in the negotiation response frame to the AMP device to continue negotiating the charging signal parameters; And Rejecting the modification of the charging signal parameters and maintaining the periodic basic charging signal to charge the AMP device.

54. The method according to any one of claims 44-53, wherein, The charging signal parameters include at least one of the following: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging duration window, charging signal interval, charging duration window offset, charging delay.

55. The method according to any one of claims 45 - 54, further comprising: Receive a negotiated charging signal determined based on the charging signal parameters from the charging device and a trigger frame received from the AP device, and send communication data to the AP device.

56. The method according to any one of claims 29-55, further comprising: Receive an indication message for instructing the AMP device to stop receiving the charging signal and keep the AMP device offline or powered off before receiving the next wake-up signal.

57. The method according to any one of claims 29 - 56, wherein, Each of the periodic basic charging signals includes at least one of the following parameters: the transmission power of the charging device, the basic signal power, the modulation method, the transmission frequency band, the identifier of the charging device, the charging window, the window offset, and the charging interval.

58. A method for implementing a charging link performed by an access point AP device, including: Send a detection indication of an ambient energy AMP device to the charging device, where the detection indication is used to instruct the charging device to send a wake-up signal to the AMP device in response to detecting the AMP device; and Receive the charging capability parameters of the AMP device sent based on the periodic basic charging signals from the AMP device.

59. The method according to claim 58, wherein, The charging capability parameters include at least one of the following: S1G support parameters, maximum received power, maximum transmission distance, maximum number of receiving antennas, receiving antenna identifier, and maximum number of charge sessions or links that can be supported.

60. The method according to claim 58 or 59, wherein, The receiving the charging capability parameters includes: receiving a frame for carrying the charging capability parameters; wherein, the frame for carrying the charging capability parameters includes a charging capability element, the charging capability element includes an element ID field and a charging capability parameter field, wherein the element ID field indicates the ID identification of the charging capability element, and the charging capability parameter field represents the charging capability parameters of the AMP device.

61. The method according to claim 60, wherein, The charging capability element further includes a length field and an element ID extension field; wherein, the length field represents the length of the remaining fields of the charging capability element except the element ID field and the length field, the element ID extension field represents whether the charging capability element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging capability parameter field have a variable length.

62. The method according to any one of claims 58-61, further including: Send the charging capability parameters of the charging device to the AMP device.

63. The method according to claim 62, wherein, The charging capability parameters of the charging device include at least one of the following: S1G support parameters, maximum transmission power, maximum transmission distance, maximum number of transmitting antennas, transmitting antenna identifier, and maximum number of charge sessions or links that can be supported.

64. The method according to claim 62 or 63, wherein, Sending the charging capability parameters of the charging device includes: sending a frame for carrying the charging capability parameters of the charging device; Among them, the frame for carrying the charging ability parameters of the charging device includes a charging ability element. The charging ability element of the charging device includes an element ID field and a charging ability parameter field. Among them, the element ID field indicates the ID identification of the charging ability element, and the charging ability parameter field represents the charging ability parameters of the charging device.

65. The method according to claim 64, wherein, The charging ability element of the charging device further includes a length field and an element ID extension field; Among them, the length field represents the length of the remaining fields of the charging ability element of the charging device except for the element ID field and the length field. The element ID extension field indicates whether the charging ability element has an extended ID. The element ID field and the element ID extension field have a fixed length, and the length field and the charging ability parameter field have a variable length.

66. The method according to any one of claims 58-65 further includes: Sending charging signal parameters to the charging device.

67. The method according to claim 66, wherein, The charging device is the AP device, and the charging signal parameters are determined as follows: Sending an inquiry frame to the AMP device, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receiving an inquiry response frame carrying feedback that does not require negotiation from the AMP device within the TXOP; Sending an acknowledgment frame that does not require negotiation to the AMP device; and Based on the acknowledgment frame, maintaining the periodic basic charging signal to charge the AMP device.

68. The method according to claim 66, wherein, The charging device is the AP device, and the charging signal parameters are determined as follows: Sending an inquiry frame to the AMP device, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receiving a negotiation request frame carrying the charging signal parameters and / or feedback results requested by the AMP device within the TXOP, where the feedback results include that the charging signal parameters need to be immediately modified, and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Sending a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device to the AMP device; and Determining the charging signal parameters based on the negotiation request frame and the negotiation response frame.

69. The method according to claim 66, wherein, The charging device is the AP device, and the charging signal parameters are determined as follows: Sending an inquiry frame to the AMP device, where the inquiry frame includes asking the AMP device whether it needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device for the AMP device; Receive, within the TXOP, a negotiation request frame carrying a delayed inquiry and the requested charging signal parameters from the AMP device, where the charging signal parameters further include at least one of the following: a delay time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Send a negotiation response frame to the AMP device including one of the following: Confirmation information including: accepting the delayed inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the delay time or the n inquiry intervals and allocating a TXOP to the AMP device; and Rejection information and the TXOP allocated to the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameters.

70. The method according to claim 66, wherein, The charging device is the relay node, and the charging signal parameters are determined as follows: Send an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receive, within the TXOP, an inquiry response frame carrying feedback indicating no need for negotiation from the AMP device via the relay node; Send a confirmation frame indicating no need for negotiation to the relay node; and Based on the confirmation frame, the relay node maintains the periodic basic charging signal to charge the AMP device.

71. The method according to claim 66, wherein, The charging device is the relay node, and the charging signal parameters are determined as follows: Send an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receive, within the TXOP, a negotiation request frame carrying the charging signal parameters requested by the AMP device and / or feedback results from the AMP device via the relay node, where the feedback results include the need to immediately modify the charging signal parameters and the negotiation request frame includes at least one of the following charging signal parameters: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging window, charging interval, charging window offset, charging delay; Send a negotiation response frame including the charging signal parameters and / or response results recommended by the AP device to the AMP device via the relay node; Determine the charging signal parameters based on the negotiation request frame and the negotiation response frame; and Send a confirmation frame carrying the charging signal parameters to the relay node.

72. The method according to claim 66, wherein, The charging device is the relay node, and the charging signal parameters are determined as follows: Send an inquiry frame to the AMP device via the relay node, where the inquiry frame includes inquiry information asking whether the AMP device needs charging negotiation and indicates the transmission opportunity TXOP allocated by the AP device to the AMP device; Receiving, within the TXOP, a negotiation request frame carrying a latency inquiry and a requested charging signal parameter from the AMP device via the relay node, where the charging signal parameter further includes at least one of the following: a latency time and n inquiry intervals, where n is a positive integer greater than or equal to 1; and Sending, via the relay node, a negotiation response frame including one of the following to the AMP device: Confirmation information including: accepting the latency inquiry, maintaining the periodic basic charging signal to charge the AMP device, and sending an inquiry frame to the AMP device again after the latency time or the n inquiry intervals and allocating a TXOP to the AMP device; and Rejection information and a TXOP allocated to the AMP device for the AP device to continue negotiating with the AMP to determine the charging signal parameter.

73. The method according to claim 68 or 71, wherein, The response result includes response information including one of the following: Accepting the modification of the charging signal parameter and using the modified charging signal parameter as the charging signal parameter; Not accepting the modification of the charging signal parameter and sending the charging signal parameter suggested by the AP and the TXOP allocated to the AMP device in the negotiation response frame to the AMP device to continue negotiating the charging signal parameter; And Rejecting the modification of the charging signal parameter and maintaining the periodic basic charging signal to charge the AMP device.

74. The method according to claim 66, wherein, The charging device is the auxiliary node or the backscatter reader, and the method further includes: Sending the charging signal parameter determined based on the negotiation between the AMP device and the AP device to the charging device.

75. The method according to any one of claims 66 - 74, wherein, The charging signal parameter includes at least one of the following: signal power, modulation method, transmission frequency band, whether it is periodic charging, charging duration window, charging signal interval, charging duration window offset, charging delay.

76. The method according to any one of claims 66 - 75, wherein, Determining the charging signal parameter includes determining a frame for carrying the charging signal parameter; Wherein, the frame for carrying the charging signal parameter includes a charging parameter element, and the charging parameter element includes an element ID field and a charging signal parameter field. The element ID field represents the ID identification of the element, and the charging signal parameter field represents the charging signal parameter requested by the AMP device or the charging signal parameter suggested by the AP device.

77. The method according to claim 76, wherein, The charging parameter element further includes a length field and an element ID extension field; Wherein, the length field represents the length of the remaining fields of the charging parameter element except the element ID field and the length field, the element ID extension field represents whether the charging parameter element has an extended ID, the element ID field and the element ID extension field have a fixed length, and the length field and the charging signal parameter field have a variable length.

78. The method according to any one of claims 58 - 77, further comprising: Sending an indication message to the AMP device to instruct the AMP device to stop receiving the charging signal and keep the AMP device offline or powered off before receiving the next wake-up signal.

79. The method according to any one of claims 58 - 78, wherein, When there are multiple said AMP devices in a scenario of multiple charging links, the charging device is capable of establishing corresponding charging links with each of the AMP devices to charge the AMP device, and each charging link in the multiple charging links is indicated by a corresponding link ID among multiple link IDs.

80. The method according to any one of claims 58 - 79, wherein, Each of the periodic basic charging signals includes at least one of the following parameters: the transmission power of the charging device, the basic signal power, the modulation method, the transmission frequency band, the identifier of the charging device, the charging duration window, the charging duration window offset, and the charging signal interval.

81. A charging device, comprising: A processor configured to execute the method according to any one of claims 1-28.

82. An ambient energy (AMP) device, comprising: A processor configured to execute the method according to any one of claims 29-57.

83. An access point (AP) device, comprising: A processor configured to execute the method according to any one of claims 58-80.

84. A chip, comprising: A processor configured to call and run a computer program stored in a memory, so that a device in which the chip is installed executes the method according to any one of claims 1-28.

85. A chip, comprising: A processor configured to call and run a computer program stored in a memory, so that a device in which the chip is installed executes the method according to any one of claims 29-57.

86. A chip, comprising: A processor configured to call and run a computer program stored in a memory, so that a device in which the chip is installed executes the method according to any one of claims 58-80.

87. A computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1-28.

88. A computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 29-57.

89. A computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 58-80.

90. A computer program product comprising a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1-28.

91. A computer program product comprising a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 29-57.

92. A computer program product comprising a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 58-80.

Images