Wireless communication method, ambient power generation station, and ambient power generation access point

Abstract

An embodiment of the present application provides a wireless communication method, an ambient power generating station, and an ambient power generating access point that can discover an ambient power generating device and / or provide stable power to the ambient power generating device, thereby ensuring communication reachability of the ambient power generating device. The wireless communication method includes a step of receiving a discovery signal by the ambient power generating station on at least one preset channel. Alternatively, the wireless communication method includes a step of receiving an energy supply signal by the ambient power generating station on at least one preset channel.

Description

[Technical Field]

[0001] FIELD Embodiments of the present application relate to the field of communications, and more particularly to a method of wireless communication, an ambient power generating station, and an ambient power generating access point. [Background technology]

[0002] Ambient Power (AMP) devices (e.g., ambient power generating stations (AMP STAs) and / or ambient power generating access points (AMP STAs)) may be supported in wireless local area networks (WLANs), thereby enabling low-power communication. Given the capability and power consumption constraints of ambient power generating devices, how to discover or provide stable energy to ambient power generating devices is a problem to be solved. Summary of the Invention [Means for solving the problem]

[0003] Embodiments of the present application provide a wireless communication method, an ambient power generating station, and an ambient power generating access point that can discover ambient power generating devices and / or provide stable energy to the ambient power generating devices, thereby ensuring communication reachability of the ambient power generating devices.

[0004] A first aspect is a method of wireless communication, comprising: A method of wireless communication is provided that includes receiving a discovery signal by an ambient power generating station on at least one pre-established channel.

[0005] A second aspect is a method of wireless communication, comprising: The ambient power-generating access point provides a method of wireless communication that includes transmitting a discovery signal to an ambient power-generating station on at least one pre-configured channel.

[0006] A third aspect is a method of wireless communication, comprising: A method of wireless communication is provided that includes receiving an energy supply signal by an ambient power generating station on at least one pre-established channel.

[0007] A fourth aspect is a method of wireless communication, comprising: The ambient power generating access point provides a method of wireless communication that includes transmitting an energy supply signal to an ambient power generating station on at least one pre-configured channel.

[0008] A fifth aspect provides an ambient power generating station for carrying out the method according to the first aspect. In particular, the ambient power generating station includes functional modules for carrying out the method according to the first aspect above.

[0009] A sixth aspect provides an ambient power-generating access point for carrying out the method according to the second aspect above. Specifically, the ambient power-generating access point includes functional modules for carrying out the method according to the second aspect above.

[0010] A seventh aspect provides an ambient power generating station for carrying out the method according to the third aspect. In particular, the ambient power generating station includes functional modules for carrying out the method according to the third aspect above.

[0011] An eighth aspect provides an ambient power-generating access point for carrying out the method according to the fourth aspect above. Specifically, the ambient power-generating access point includes functional modules for carrying out the method according to the fourth aspect above.

[0012] A ninth aspect provides an ambient power generating station including a memory for storing a computer program and a processor for calling and executing the computer program stored in the memory to cause the ambient power generating station to perform the method according to the first aspect.

[0013] A tenth aspect provides an ambient power-generating access point including a memory for storing a computer program and a processor for calling and executing the computer program stored in the memory to cause the ambient power-generating access point to perform the method according to the second aspect.

[0014] An eleventh aspect provides an ambient power generating station including a memory for storing a computer program and a processor for calling and executing the computer program stored in the memory to cause the ambient power generating station to perform the method according to the third aspect.

[0015] A twelfth aspect provides an ambient power-generating access point including a memory for storing a computer program and a processor for calling and executing the computer program stored in the memory to cause the ambient power-generating access point to perform the method according to the fourth aspect.

[0016] A thirteenth aspect provides an apparatus for implementing the method according to any one of the first to fourth aspects. Specifically, the apparatus includes a processor that calls up and executes a computer program from a memory, causing a device equipped with the apparatus to execute the method of any one of the first to fourth aspects.

[0017] A fourteenth aspect provides a computer-readable storage medium for storing a computer program that causes a computer to execute the method according to any one of the first to fourth aspects.

[0018] A fifteenth aspect provides a computer program product including computer program instructions for causing a computer to perform the method of any one of the first to fourth aspects.

[0019] A sixteenth aspect provides a computer program which, when executed on a computer, causes the computer to execute any one of the methods of the first to fourth aspects.

[0020] According to the technical solutions of the above first and second aspects, the ambient power generating station receives a discovery signal on at least one pre-set channel, allowing the ambient power generating access point to discover the ambient power generating station, thereby avoiding the ambient power generating station from blindly detecting the discovery signal on all channels, reducing the delay caused by the detection of the discovery signal, and also reducing the energy loss caused by the detection of the discovery signal of the ambient power generating station, thereby ensuring the communication reach of the ambient power generating station.

[0021] According to the technical solutions of the third and fourth aspects, the ambient power generating station receives the energy supply signal through at least one preset channel, which avoids the ambient power generating station from blindly detecting the energy supply signal through all channels, thereby providing the ambient power generating station with energy more stably and efficiently and ensuring the communication reachability of the ambient power generating station. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a schematic diagram of a communication system architecture applied to an embodiment of the present application; [Figure 2] 1 is a schematic diagram of a PPDU according to the present application; [Figure 3] 1 is a schematic diagram of a MAC frame according to the present application; [Figure 4] 1 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application; [Figure 5] 1 is a schematic diagram of an energy delivery signal based on OOK modulation according to an embodiment of the present application; [Figure 6] FIG. 1 is a schematic diagram of a radio frequency energy source information element according to an embodiment of the present application. [Figure 7] 2 is a schematic diagram of an energy supply signal, a discovery signal, and a beacon signal according to an embodiment of the present application; [Figure 8] 1 is a schematic flowchart of a BSS scan by an AMP STA according to an embodiment of the present application; [Figure 9] 10 is a schematic flowchart of a BSS scan by another AMP STA according to an embodiment of the present application; [Figure 10] 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; [Figure 11] 1 is a schematic block diagram of an ambient power generating station according to an embodiment of the present application; [Figure 12] 1 is a schematic block diagram of an ambient power-generating access point according to an embodiment of the present application; [Figure 13] FIG. 2 is a schematic block diagram of another ambient power generating station according to an embodiment of the present application. [Figure 14] FIG. 1 is a schematic block diagram of another ambient power-generating access point according to an embodiment of the present application. [Figure 15] 1 is a schematic block diagram of a communication device according to an embodiment of the present application; [Figure 16] 1 is a schematic block diagram of an apparatus according to an embodiment of the present application; [Figure 17] 1 is a schematic block diagram of a communication system according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0023] The technical solutions of the embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application, but it is clear that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. With regard to the embodiments of the present application, all other embodiments that a person skilled in the art can obtain without creative work are within the scope of the present application.

[0024] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), or other communication systems.

[0025] 1, there is shown a schematic diagram of a wireless communication system according to an embodiment of the present application. As shown in FIG. 1, the wireless communication system may include an access point (AP) and a station (STA).

[0026] In some scenarios, an AP may be referred to as an AP STA, i.e., an AP is also a STA in some sense. In some scenarios, it is referred to as a STA or a non-AP STA.

[0027] In some embodiments, the STAs may include AP STAs and non-AP STAs. Communication in the communication system may be communication between an AP and a non-AP STA, communication between a non-AP STA and a non-AP STA, or communication between a STA and a peer STA. Here, a peer STA may refer to a device that communicates with a STA. For example, a peer STA may be an AP or a non-AP STA.

[0028] An AP is a bridge between a wired network and a wireless network, and its main function is to connect wireless network clients to each other and connect the wireless network to Ethernet. An AP device can be a terminal device (e.g., a mobile phone) or a network device (e.g., a router) with a Wireless Fidelity (Wi-Fi) chip.

[0029] It should be understood that the role of an STA in a communication system is not absolute; for example, in some scenarios, when a mobile phone is connected to a router, the mobile phone is a non-AP STA, and when the mobile phone is a hotspot for other mobile phones, the mobile phone plays the role of an AP.

[0030] The APs and non-AP STAs may be devices applied to vehicle networks, IoT nodes in the Internet of Things (IoT), sensors, smart cameras, smart remote controls, smart water meters, and power meters in smart homes, and sensors in smart cities.

[0031] In some embodiments, the non-AP STAs may support the 802.11be standard. The non-AP STAs may also support current and future 802.11 family of wireless LAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0032] In some embodiments, the AP may be a device that supports the 802.11be standard. The AP may also be a WLAN-style device that supports current and future 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0033] In an embodiment of the present application, the STA may be a mobile phone, a tablet, a computer, a virtual reality device, an augmented reality device, a wireless device in industrial control, a set-top box, a wireless device in self driving, an in-vehicle communication device, a wireless device in remote medical, a wireless device in a smart grid, a wireless device in transportation safety, a wireless device in a smart city, or a wireless device in a smart home, a wireless communication chip, an ASIC (Application Specific Integrated Circuit), or a SOC (System on Chip) that supports WLAN / WIFI technology.

[0034] The frequency bands that WLAN technology can support include, but are not limited to, low frequency bands (2.4 GHz, 5 GHz, 6 GHz) and high frequency bands (45 GHz, 60 GHz).

[0035] One or more links exist between a station and an access point. In some embodiments, the station and the access point support multi-band communication. For example, simultaneous communication in the 2.4 GHz, 5 GHz, 6 GHz, 45 GHz, and 60 GHz frequency bands, or simultaneous communication in different channels in the same frequency band (or different frequency bands), improves communication throughput and / or reliability between the devices. Such devices are generally referred to as multi-band devices or multi-link devices (MLDs), and may also be referred to as multi-link entities or multi-band entities. A multi-link device may be an access point device or a station device. If the multi-link device is an access point device, it includes one or more APs, and if the multi-link device is a station device, it includes one or more non-AP STAs.

[0036] A multilink device that includes one or more APs may be referred to as an AP MLD, and a multilink device that includes one or more non-AP STAs may be referred to as a Non-AP MLD.

[0037] In the embodiments of the present application, an AP may include multiple APs, a non-AP may include multiple STAs, multiple links can be formed between the APs of an AP and the STAs of a non-AP, and data communication can be performed between the APs of an AP and the corresponding STAs of a non-AP via the corresponding links.

[0038] An AP is a device located in a wireless LAN and provides wireless communication capabilities to STAs. A station may include a user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile console, remote station, remote terminal, mobile device, wireless communication device, user agent, or user device. Optionally, a station may be a mobile phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, or a wearable device, although examples of the present application are not limited thereto.

[0039] Optionally, both the station and the access point support the IEEE 802.11 standard.

[0040] It should be understood that the terms "system" and "network" are often used interchangeably herein. In this specification, the term "and / or" is simply a relational relationship for describing associated objects, and means that three relationships can exist. For example, A and / or B means that A exists alone, A and B exist simultaneously, or B exists alone. In addition, in this specification, the symbol " / " generally indicates that the associated objects before and after it are in an "or" relationship.

[0041] The terms used in the embodiments section of this application are used only to describe specific examples of this application and are not intended to limit this application. In the specification, claims, and drawings of this application, terms such as "first," "second," "third," and "fourth" are used to distinguish different objects and are not used to describe a specific order. In addition, the terms "comprise" and "have" and variations thereof are intended to cover non-exclusive inclusions.

[0042] It should be understood that the "indication" referred to in the examples of the present application may be a direct indication or an indirect indication, and may mean that there is an association. For example, when A indicates B, it may mean that A directly indicates B, for example, B can be obtained by A, or when A indirectly indicates B, for example, when A indicates C, it may mean that B can be obtained by C, and there is an association relationship between A and B.

[0043] In describing the embodiments of this application, the term "correspondence" may mean that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that there is a relationship between an instructing and an instructed, or a setting and a setting, etc.

[0044] In the embodiments of the present application, "predefined" or "preconfigured" may be realized by pre-storing a corresponding code, table, or other method that can be used to indicate related information in a device (including, for example, a terminal device and a network device). The present application does not limit the specific implementation form. For example, predefined may mean a definition in a protocol.

[0045] In the embodiments of the present application, the term "protocol" may refer to a standard protocol in the field of communications, such as an evolution of an existing LTE protocol, an NR protocol, a Wi-Fi protocol, or other communication system-related protocols related thereto, but the present application does not limit the type of protocol.

[0046] As the application of 5G in the industry increases, the types of connected objects and application scenarios will become increasingly diverse, placing higher requirements on the price and power consumption of communication terminals. The application of battery-free, low-cost passive Internet of Things devices will become a key technology for the cellular Internet of Things, enriching the types and quantity of 5G network link terminals and realizing the true Internet of Things. Passive Internet of Things devices can be extended to apply to cellular IoT based on existing zero-power devices such as Radio Frequency Identification (RFID) technology.

[0047] To facilitate understanding of the embodiments of the present application, a classification of zero power consumption devices according to the present application will be described.

[0048] Optionally, the zero power consumption device can be divided into a passive zero power consumption device, a semi-passive zero power consumption device, and an active zero power consumption device based on the energy source and usage of the zero power consumption device.

[0049] 1) Passive zero power consumption devices The zero-power consumption device does not need to have a built-in battery, and when it is in proximity to a network device (e.g., a reader / writer in a Radio Frequency Identification (RFID) system), it is within the near-field formed by the antenna radiation of the network device. Therefore, the antenna of the zero-power consumption device generates an induced current through electromagnetic induction, and the induced current drives the low-power chip circuit of the zero-power consumption device. It realizes operations such as demodulating the forward link signal (downlink, the link from the network device to the zero-power consumption device) and modulating the signal of the reverse link (uplink, the link from the zero-power consumption device to the network device). In the case of a backscatter link, the zero-power consumption device transmits signals in a backscatter implementation.

[0050] It can be seen that a passive zero power consumption device does not require an internal battery to power either the forward link or the reverse link, and is a truly zero power consumption device.

[0051] Passive zero-power consumption devices do not require batteries, and their radio frequency and baseband circuits are very simple, eliminating the need for components such as low-noise amplifiers (LNAs), power amplifiers (PAs), crystal oscillators, and analog-to-digital conversion (ADCs). As a result, they have many advantages, such as small size, light weight, very low cost, and long service life.

[0052] 2) Semi-passive zero power consumption devices The semi-passive zero-power consumption device itself does not have a conventional battery, but may collect radio wave energy using a radio frequency (RF) energy collection module, or may collect energy using a solar energy, light energy, thermal energy, or kinetic energy collection module. The collected energy is then stored in an energy storage unit (e.g., a capacitor). After the energy storage unit acquires the energy, it can drive the low-power consumption chip circuit of the zero-power consumption device, which can demodulate the forward link signal and modulate the reverse link signal. For the backscatter link, the zero-power consumption device transmits the signal using a backscatter implementation.

[0053] The semi-passive zero power consumption device does not require an internal battery to power either the forward link or the reverse link, and although it uses capacitively stored energy during operation, the energy comes from wireless energy harvested by the energy harvesting module, making it a truly zero power consumption device.

[0054] Semi-passive zero power consumption devices inherit many of the advantages of passive zero power consumption devices, and therefore have many advantages such as small volume, light weight, very low price, and long service life.

[0055] 3) Active zero power consumption devices The zero-power consumption device used in some scenarios may be an active zero-power consumption device, and such a terminal may have a built-in battery (a conventional battery, e.g., a dry cell battery, a rechargeable lithium battery, etc.). The battery is used to power the low-power chip circuit of the zero-power consumption device. Forward link signal demodulation and reverse link signal modulation are realized. However, in the case of a backscatter link, the zero-power consumption device transmits signals using a backscatter implementation. Therefore, the zero-power consumption of such a terminal is mainly reflected in the fact that reverse link signal transmission does not require the terminal's own power but uses the backscatter method. Although the active zero-power consumption device uses a battery, its power consumption is very low due to the sampling ultra-low power communication technology, which can significantly improve the operating life of the battery compared to conventional technologies.

[0056] Active zero-power devices use a built-in battery to power the RFID chip, increasing the tag's read / write distance and improving communication reliability, making them suitable for scenarios with relatively high requirements in terms of communication distance, read latency, etc.

[0057] To facilitate understanding of the embodiments of the present application, an ambient energy-based device according to the present application will be described.

[0058] The battery-free and low-cost nature of devices in NR and Wi-Fi systems allows for low-cost, large-scale deployment and maintenance-free operation of Internet of Things (IoT) devices. Research is underway to support ambient energy-based IoT devices, also known as ambient IoT (Ambi-IoT) or AMP IoT devices, in current standards. The energy required for their operation comes from ambient energy harvesting, which can be sourced from radio signals, solar energy, thermal energy, etc. This type of device is similar to passive or semi-passive devices in zero-power communication.

[0059] To facilitate a better understanding of the embodiments of the present application, a physical layer protocol data unit (PPDU) according to the present application will be described.

[0060] WiFi device information is transmitted via a PPDU frame. The PPDU frame includes a physical layer header and a data section. For example, the 802.11a / g physical layer header is preceded by three sections: the short training field (STF), the long training field (LTF), and the signal section. These sections are configured in various ways: the short training field, the long training field, and the data section. The first section is the STF, which consists of 10 short symbols (t1 to t10), each 0.8 µs long. The STF performs various functions, primarily frame synchronization and coarse frequency synchronization. t1 to t7 primarily perform signal detection, automatic gain control (AGC), and diversity selection, while t8 to t10 primarily perform coarse frequency, offset estimation, and timing synchronization. The second part is the LTF, which realizes fine frequency synchronization and channel estimation. The SIGNAL part carries information about the data part, including the data transmission rate, data packet length information, reserved bits, and tail bits. The data part of the PPDU carries a Media Access Control (MAC) frame, and the frame format of the MAC frame includes a MAC header, a frame body, and a Frame Check Sequence (FCS), as shown in Figure 3.

[0061] To facilitate a better understanding of the embodiments of the present application, a wake-up receiver (WUR) according to the present application will be described.

[0062] In 802.11ba technology, a WUR STA device has a wake-up receiver (WUR) for receiving a wake-up signal. The wake-up receiver has the characteristics of ultra-low cost, ultra-low complexity, and ultra-low power consumption, and mainly receives the wake-up signal using envelope detection. When a WUR STA is in a sleep state, its primary receiver is turned off to save power, and the WUR is turned on to receive a wake-up signal sent by the AP. When the AP needs to transmit data with the STA, it can wake up the STA with the wake-up signal to turn on the primary receiver. Otherwise, the UE's primary receiver can be turned off.

[0063] In a WiFi system, when a STA device is not associated with an AP, active scanning is required to discover surrounding APs, select a suitable AP, and begin the association process. If a STA is already associated with an AP, it may move out of the AP's coverage area, requiring a scanning process to discover a new AP. Typically, a STA scans multiple channels, searches for beacon frames transmitted by the AP, or actively transmits probe request frames and waits for probe response frames transmitted by the AP. This scanning process increases the STA's power consumption and latency. To reduce scanning power consumption and latency, scanning can be performed by a WUR for one WUR STA, especially when the WUR STA is in a sleep state and its primary receiver is turned off. In 802.11ba technology, a wireless router (WUR) AP can transmit a WUR discovery frame to indicate the AP's compressed Service Set Identifier (SSID) and the primary channel of the AP's corresponding Basic Service Set (BSS). A wireless router (WUR) STA receives the WUR discovery frame and obtains information about the BSS of neighboring APs, thereby reducing the power consumption and delay caused by scanning the primary receiver of the WUR STA.

[0064] In 802.11ba technology, the WUR of a WUR STA consumes significantly less power than the primary receiver, but it is still an active device and its energy supply is not limited. AMP STAs have stricter energy requirements because their energy source is not stable and their energy storage capacity is significantly limited. Especially in their initial operating phase, they cannot perform subsequent processes such as BSS scanning and association without energy. Therefore, when an AMP STA is low on power, the first thing it needs to do is obtain an energy supply. Wireless signals in the air are relatively abundant but not stable. One reliable method is for an AP or a dedicated energy supply node to supply energy to AMP STAs within their coverage area.

[0065] To facilitate a better understanding of the embodiments of the present application, the problem that the present application seeks to solve will be explained.

[0066] The energy required for the operation of ambient energy-based IoT devices is mainly supplied from ambient sources, such as radio frequency signals. When a device communicates with a network, it must first collect sufficient ambient energy to support subsequent processes such as synchronization and access. At this stage, there is no stable ambient power generation, such as radio frequency signals, and providing the device with energy for communication-related processes makes it difficult to achieve stable and reliable operation of ambient energy-based IoT devices. In addition, it is currently not possible to fully discover ambient power-generating devices.

[0067] In view of the above problems, this application proposes a solution for discovering an ambient power generating station, in which the ambient power generating station receives a discovery signal on at least one preset channel, thereby avoiding the ambient power generating station from blindly detecting the discovery signal on all channels, reducing the delay caused by the discovery signal detection, reducing the energy loss caused by the ambient power generating station from detecting the discovery signal, and ensuring the communication reachability of the ambient power generating station. Alternatively, this application proposes a solution for supplying power to an ambient power generating station, in which the ambient power generating station receives an energy supply signal on at least one preset channel, thereby avoiding the ambient power generating station from blindly detecting the energy supply signal on all channels, thereby enabling the ambient power generating station to be provided with power more stably and efficiently and ensuring the communication reachability of the ambient power generating station.

[0068] In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are detailed below through specific examples. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as alternative solutions and fall within the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents:

[0069] FIG. 4 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 4, the wireless communication method 200 may include at least some of the following contents:

[0070] S210, the ambient power-generating access point transmits a discovery signal on at least one preset channel.

[0071] S220, the ambient power generating station receives a discovery signal on at least one preset channel.

[0072] In an embodiment of the present application, the ambient power generating station receives a discovery signal on at least one pre-set channel, so that the ambient power generating access point can discover the ambient power generating station, thereby avoiding the ambient power generating station from blindly detecting the discovery signal on all channels, reducing the delay caused by the detection of the discovery signal, reducing the energy loss caused by the ambient power generating station detecting the discovery signal, and ensuring the communication reachability of the ambient power generating station.

[0073] In an embodiment of the present application, the ambient power generating station obtains the energy required for communication by harvesting ambient energy (eg, light energy, thermal energy, wind energy, radio frequency energy, mechanical energy, kinetic energy, etc.).

[0074] In the embodiments of the present application, the ambient power generating station may also be referred to as an "ambient power enabled IoT device" or "ambient IoT device." Specifically, an ambient IoT device refers to an IoT device that utilizes various ambient energies, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy. An ambient IoT device may have no energy storage capability or may have very limited energy storage capability (e.g., using a capacitor with a capacitance of tens of microfarads (uF)).

[0075] In an embodiment of the present application, an ambient power-generating access point (AMP AP) may be a device that communicates with an ambient power-generating station (AMP STA), or may be a conventional access point (AP), and like an ambient power-generating station, it can obtain the energy required for communication by collecting ambient energy (e.g., light energy, thermal energy, wind energy, radio frequency energy, mechanical energy, kinetic energy, etc.).

[0076] In some embodiments, the ambient power generation station may be a zero-power consumption device having characteristics such as battery-free, maintenance-free, etc. Specifically, the zero-power consumption device has a simple structure, low complexity, low cost, can support energy harvesting of ambient energy (e.g., light energy, thermal energy, radio frequency energy, mechanical energy, kinetic energy, etc.), can obtain energy required for communication, can support a backscattering communication method, and some zero-power consumption devices can also support an active transmission communication method.

[0077] In some embodiments, in the above S220, the ambient power generating station receives a discovery signal on at least one channel before associating with the ambient power generating access point, i.e., before associating with the ambient power generating access point, the ambient power generating station receives a discovery signal on at least one preset channel, thereby avoiding the ambient power generating station from blindly detecting the discovery signal on all channels, reducing the delay caused by the discovery signal detection, reducing the energy loss caused by the ambient power generating station's detection of the discovery signal, and ensuring the communication reachability of the ambient power generating station.

[0078] In some embodiments, the discovery signal received on the at least one channel comprises: The ambient power-generating access point carries at least one of an SSID of the ambient power-generating access point and primary channel information of a BSS corresponding to the ambient power-generating access point.

[0079] Specifically, for example, the SSID of the ambient power-generating access point carried by the discovery signal received on the at least one channel may be a compressed SSID.

[0080] That is, in this embodiment, the ambient-power-generating access point can carry its compressed SSID and primary channel information of the BSS corresponding to the ambient-power-generating access point in the discovery signal. The ambient-power-generating access point scans at least one preset channel for discovery signals to acquire the discovery signal and simultaneously acquires the compressed SSID of the ambient-power-generating access point and the primary channel information of the BSS corresponding to the ambient-power-generating access point. This avoids the ambient-power-generating station from directly scanning all channels, reduces the delay caused by discovery signal detection, and reduces energy loss caused by the ambient-power-generating station's discovery signal detection.

[0081] In some embodiments, the discovery signal received on the at least one channel carries transmission parameters of a Beacon frame of the ambient power-generating access point.

[0082] In some embodiments, the discovery signal received on the at least one channel comprises: The frame carries at least one of the SSID of the ambient power-generating access point, primary channel information of the BSS corresponding to the ambient power-generating access point, and transmission parameters of a beacon frame of the ambient power-generating access point.

[0083] In some embodiments, the transmission parameters of the beacon frame of the ambient-power-generating access point include, but are not limited to, at least one of a beacon interval, a target beacon transmission time (TBTT), and offset information in the time domain between the discovery signal carrying the transmission parameters of the beacon frame of the ambient-power-generating access point and the TBTT (e.g., the latest TBTT).

[0084] That is, in this embodiment, the ambient power-generating access point can carry the transmission parameters of the beacon frame of the ambient power-generating access point in the discovery signal, so that the ambient power-generating station can detect the beacon frame of the ambient power-generating access point based on the transmission parameters of the beacon frame of the ambient power-generating access point, thereby reducing the delay caused by detecting the beacon frame and reducing the energy loss caused by detecting the beacon frame of the ambient power-generating station.

[0085] In some embodiments, the ambient power generating station obtains energy through the discovery signal received on the at least one channel, that is, in this embodiment, the discovery signal can further supply energy to the ambient power generating station, which can solve the energy supply problem of the ambient power generating station, and can prevent the ambient power generating station from blindly detecting the energy supply signal on all channels, thereby enabling the ambient power generating station to supply power more stably and efficiently.

[0086] Specifically, for example, for the operation of the ambient power generating station, the ambient power generating access point needs to provide a basic energy supply signal. For example, the ambient power generating access point preferably transmits a discovery signal on at least one preset channel, and when the ambient power generating station is low in power, it preferably obtains energy through the discovery signal on the at least one channel for subsequent operation. In this way, the ambient power generating station can avoid scanning for an energy supply signal when it has no stored energy or very low energy.

[0087] In some embodiments, the at least one channel belongs to one or more frequency bands. Specifically, for example, the at least one preset channel includes a specific channel in a specific frequency band, such as channel 1 in the 2.4 GHz band, or channels 40, 44, 149, 153, etc. in the 5 GHz band, and channels in frequency bands below 1 GHz. In the case of an ambient power-generating station, energy can be obtained on the at least one preset channel before being associated with an ambient power-generating access point.

[0088] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol, and / or the frequency domain resources within which the ambient power generating station receives discovery signals within the at least one channel are defined by a protocol.

[0089] Specifically, for example, the frequency domain resource in which an ambient power generating station receives a discovery signal in at least one channel may be a partial bandwidth of a 20 MHz channel in the 2.4 GHz frequency band. Here, the center frequencies of 14 overlapping channels in the 2.4 GHz frequency band may be spaced 5 MHz apart from each other, as shown in Table 1. The effective bandwidth of each channel is 20 MHz, with an additional 2 MHz added as a separation bandwidth. For example, in a power-off state, an ambient power generating station needs to obtain a discovery signal on channel 1 in the 2.4 GHz band, perform corresponding energy accumulation, and then perform subsequent operations. [Table 1]

[0090] In some embodiments, the discovery signal received by the ambient power-generating station on the at least one channel carries first indication information.

[0091] Here, the first indication information is information indicating the channel in which the energy supply signal of the ambient power generating station is located (e.g., a channel number or a channel index), or the first indication information is information indicating the channel set in which the energy supply signal of the ambient power generating station is located (e.g., a channel set number or a channel set index), or the first indication information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located (e.g., a frequency band number or a frequency band index).

[0092] Specifically, for example, after acquiring energy through a discovery signal received on at least one preset channel, the ambient power generating station can directly acquire the channel or frequency band where the other energy supplying signal is located. For example, the first indication information may be directly carried in the discovery signal and may indicate the channel number or frequency band number of the other energy supplying signal. Specifically, after acquiring the first indication information, the ambient power generating station can retune to the corresponding channel or frequency band to acquire energy. Specifically, the first indication information may indicate a channel set (i.e., a first channel set) including multiple channels. After acquiring energy through a discovery signal received on at least one preset channel, the ambient power generating station can scan the channel or frequency band indicated by the first indication information to acquire the other energy supplying signal. For example, a discovery signal received on a channel preset to channel 1 in the 2.4 GHz band can carry first indication information, which may indicate that the channel set (i.e., the first channel set) where the other energy supplying signal is located includes channel 6, channel 7, and channel 8.

[0093] In some embodiments, when the first instruction information is information for indicating a channel on which the energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as the channel on which the ambient power generating station performs communication.

[0094] In some embodiments, when the first indication information is information for indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication.

[0095] In some embodiments, when the first instruction information is information for indicating a frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0096] Specifically, to avoid the AMP STA constantly retuning between the energy collection channel and the communication channel, the energy supply signal and the communication-related channel are preferably on one channel or one frequency band.

[0097] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0098] In some embodiments, the discovery signal received by the ambient power-generating station on the at least one channel carries second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0099] Optionally, the primary channel of the target BSS is the channel transmitted by the beacon frames of the target BSS.

[0100] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0101] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0102] Optionally, the beacon frame may be an AMP beacon frame, which may be a beacon frame dedicated to AMP STAs.

[0103] Optionally, the probe request frame may be an AMP probe request frame, which may be a probe request frame dedicated to AMP STAs. Optionally, the probe response frame may be an AMP response request frame, which may be a response request frame dedicated to AMP STAs.

[0104] Specifically, the AMP STA acquires the channel number of the primary channel of the target BSS or the number of a channel in the channel set of the target BSS while receiving energy supply, thereby reducing power consumption and delay in the subsequent process of the AMP STA scanning across multiple channels to determine the primary channel of the target BSS. The AMP STA can receive an AMP beacon frame, or transmit a probe request frame and receive a probe response frame on the channel indicated by the second indication. For example, an energy supply signal received on channel 1 in the 2.4 GHz band carries second indication information indicating that the primary channel of the target BSS is channel 6. The information carried in the energy supply signal can indicate not only the primary channel of the target BSS but also the ID information of the target BSS.

[0105] In some embodiments, the waveform of the energy delivery signal is generally a continuous wave (CW). The energy delivery signal can carry information (e.g., second instruction information) by amplitude modulation (e.g., on-off keying (OOK) modulation). As shown in FIG. 5, the energy delivery signal is OOK modulated to carry information 101010 as the second instruction information. The energy delivery signal can be a periodic signal that repeatedly transmits the energy delivery information. The energy delivery signal can be transmitted in a fixed frame structure including a portion carrying information and a portion not carrying information. Here, the portion not carrying information has a higher energy delivery efficiency than the portion carrying information.

[0106] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0107] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS includes a radio frequency energy source information element, which includes an operating class field indicating a frequency band on which the ambient power generating station will receive an energy delivery signal after associating with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy delivery signal after associating with the target BSS. Specifically, for example, a radio frequency energy source information element is shown in FIG.

[0108] Specifically, for example, an AMP STA can receive an AMP beacon frame on the primary channel by scanning the collected energy, and then acquire the parameters of the target BSS, thereby performing the subsequent association process. The AMP beacon frame can carry information related to the energy supply signal, such as a frequency band and channel, so that the AMP STA can obtain energy supply on the corresponding channel and therefore communicate on the same channel or a different channel. Here, the energy supply signal is a target BSS-specific energy supply signal required for the AMP STA to operate on the target BSS. The frequency band and channel may be indicated by operating class and channel information. Here, the operating class is an index number that corresponds to a set of channel frequency ranges, channel bandwidths, channel center frequencies, and standard requirements to be met.

[0109] In some embodiments, after the ambient power-generating station is associated with an ambient power-generating access point, the ambient power-generating station receives a discovery signal transmitted from the ambient power-generating access point, where the discovery signal received after the ambient power-generating station is associated with the ambient power-generating access point carries at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and transmission parameters of a beacon frame of the neighboring access point.

[0110] Optionally, the SSID of the neighboring access point may be a compressed SSID.

[0111] In some embodiments, the transmission parameters of the beacon frame of the neighboring access point include at least one of a beacon interval, a TBTT, and offset information in the time domain between a discovery signal carrying the transmission parameters of the beacon frame of the neighboring access point and the TBTT (e.g., the latest TBTT).

[0112] In some embodiments, the discovery signal received by the ambient power generating station after it has associated with the ambient power generating access point is an energy delivery signal received by the ambient power generating station after it has associated with the ambient power generating access point.

[0113] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives discovery signals after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0114] Specifically, when an AMP STA is not associated with an ambient-power-harvesting access point, it acquires energy from an energy-supply signal on a pre-defined channel and performs a scanning process. When an AMP STA is associated with an ambient-power-harvesting access point, the AMP STA may move out of the coverage area of ​​the ambient-power-harvesting access point and therefore needs to perform a scanning process to discover a new AP. Currently, the STA scans multiple channels, searching for beacon frames transmitted by the AP, or actively transmitting probe request frames and waiting for probe response frames transmitted by the AP. The power consumption incurred during this scanning process is unacceptable for an AMP STA. Therefore, similar to the purpose of introducing the WUR discovery frame in 802.11ba, a scanning method that reduces power consumption during the AMP STA scanning process must be considered. Because an AMP STA requires energy, the AMP STA's scanning for energy-supply signals may be simultaneously performed while scanning neighboring BSSs.

[0115] Specifically, an ambient power-generating access point (AMP AP) uses an AMP beacon frame, a probe response frame, or other types of management or control frames to indicate to an ambient power-generating station (AMP STA) the frequency band and channel where the energy supply signal is located. The AMP AP can carry the compressed SSID of nearby APs and the primary channel information of the BSS corresponding to the AP in the energy supply signal. On these channels, the AMP STA scans for the energy supply signals to obtain the energy supply and also obtains the compressed SSID of nearby APs and the primary channel information of the BSS corresponding to the AP from these energy supply signals. This reduces the power consumption and delay of the AMP STA's direct scanning of multiple channels using the conventional STA scanning method. Furthermore, the energy supply signal can carry information such as the compressed SSID of a nearby AP and the primary channel information of the BSS corresponding to the AP, as well as transmission parameters of the Beacon frame, such as the beacon interval, target beacon transmission times (TBTTs), and time offset information between the (latest) TBTT and the energy supply signal carrying the above information.The AMP STA can detect the Beacon based on this information, thereby reducing the power consumption required to detect the Beacon frame.

[0116] In the embodiment of the present application, the discovery signal not only serves as a discovery signal to assist the AMP STA in scanning nearby BSSs, but also has an energy supply function to reduce power consumption. As shown in Figure 7, the AMP STA obtains the SSID and primary channel of nearby BSSs through the energy supply signal on channel 1, and then directly detects Beacon frames on channel 6.

[0117] In some embodiments, the flow of BSS scanning by an AMP STA is shown in Figure 8. Specifically, the AMP STA can obtain wireless energy supply through a pre-configured channel, and if the energy collection of the AMP STA meets a condition (e.g., a communication condition of the AMP STA), the AMP STA scans at least one channel to receive a beacon frame and associates with the target BSS.

[0118] In some embodiments, the flow of a BSS scan by an AMP STA is shown in FIG. 9. During the progress of a scan to associate with a target BSS, the AMP STA may be unable to continue and complete the scan due to power consumption. If the AMP STA cannot continue operation with the collected energy, it can continue to obtain energy through a wireless energy supply signal on a pre-set channel. As shown in FIG. 9, during the process of scanning, the AMP STA determines whether the energy collection satisfies the conditions (e.g., satisfies the communication conditions of the AMP STA), and if so, continues the scan. If not, it needs to obtain energy through a wireless energy supply signal on a pre-set channel.

[0119] Therefore, in an embodiment of the present application, the ambient power generating station receives a discovery signal on at least one pre-set channel, so that the ambient power generating access point can discover the ambient power generating station, avoiding the ambient power generating station from blindly detecting the discovery signal on all channels, reducing the delay caused by the detection of the discovery signal, and also reducing the energy loss caused by the ambient power generating station detecting the discovery signal, thereby ensuring the communication reachability of the ambient power generating station.

[0120] FIG. 10 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 10, the wireless communication method 300 may include at least some of the following contents:

[0121] S310, the ambient power-generating access point transmits an energy supply signal on at least one preset channel.

[0122] S320, the ambient power generating station receives an energy supply signal on at least one preset channel.

[0123] In the embodiment of the present application, the ambient power generating station receives an energy supply signal on at least one pre-set channel, and avoids the ambient power generating station from blindly detecting the energy supply signal on all channels, thereby enabling the ambient power generating station to provide energy more stably and efficiently and ensuring the communication reachability of the ambient power generating station.

[0124] In an embodiment of the present application, the ambient power generating station obtains the energy required for communication by harvesting ambient energy (eg, light energy, thermal energy, wind energy, radio frequency energy, mechanical energy, kinetic energy, etc.).

[0125] In the embodiments of the present application, the ambient power generating station may also be referred to as an "ambient power enabled IoT device" or "ambient IoT device." Specifically, an ambient IoT device refers to an IoT device that utilizes various ambient energies, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy. An ambient IoT device may have no energy storage capability or may have very limited energy storage capability (e.g., using a capacitor with a capacitance of tens of microfarads (uF)).

[0126] In an embodiment of the present application, an ambient power-generating access point (AMP AP) may be a device that communicates with an ambient power-generating station (AMP STA), or may be a conventional access point (AP), and like an ambient power-generating station, it can obtain the energy required for communication by collecting ambient energy (e.g., light energy, thermal energy, wind energy, radio frequency energy, mechanical energy, kinetic energy, etc.).

[0127] In some embodiments, the ambient power generation station may be a zero-power consumption device having characteristics such as battery-free, maintenance-free, etc. Specifically, the zero-power consumption device has a simple structure, low complexity, low cost, can support energy harvesting of ambient energy (e.g., light energy, thermal energy, radio frequency energy, mechanical energy, kinetic energy, etc.), can obtain energy required for communication, can support a backscattering communication method, and some zero-power consumption devices can also support an active transmission communication method.

[0128] In some embodiments, in the above S320, the ambient power generating station receives the energy supply signal on the at least one channel before being associated with the ambient power generating access point, that is, before being associated with the ambient power generating access point, the ambient power generating station receives the energy supply signal on at least one preset channel, which prevents the ambient power generating station from blindly detecting the energy supply signal on all channels, thereby enabling the ambient power generating station to provide energy more stably and efficiently and ensuring communication reachability of the ambient power generating station.

[0129] In some embodiments, the energy delivery signal received on the at least one channel comprises: The ambient power-generating access point carries at least one of an SSID of the ambient power-generating access point and primary channel information of a BSS corresponding to the ambient power-generating access point.

[0130] Specifically, for example, the SSID of the ambient power-generating access point carried by the energy supply signal received on the at least one channel may be a compressed SSID.

[0131] That is, in this embodiment, the ambient power-generating access point can carry its compressed SSID and primary channel information of the BSS corresponding to the ambient power-generating access point in the energy supplying signal. The ambient power-generating access point scans at least one preset channel for the energy supplying signal to acquire the energy supplying signal, and simultaneously acquires the compressed SSID of the ambient power-generating access point and the primary channel information of the BSS corresponding to the ambient power-generating access point. This avoids the ambient power-generating station from directly scanning all channels, reduces the delay caused by detecting the energy supplying signal, and reduces the energy loss caused by detecting the energy supplying signal of the ambient power-generating station.

[0132] In some embodiments, the energy delivery signal received on the at least one channel carries transmission parameters of a Beacon frame of the ambient power-generating access point.

[0133] In some embodiments, the transmission parameters of the beacon frame of the ambient-power-generating access point include, but are not limited to, at least one of a beacon interval, a target beacon transmission time (TBTT), and offset information in the time domain between the energy supply signal carrying the transmission parameters of the beacon frame of the ambient-power-generating access point and the TBTT (e.g., the latest TBTT).

[0134] That is, in this embodiment, the ambient power-generating access point can carry the transmission parameters of the beacon frame of the ambient power-generating access point in the energy supply signal, so that the ambient power-generating station can detect the beacon frame of the ambient power-generating access point based on the transmission parameters of the beacon frame of the ambient power-generating access point, thereby reducing the delay caused by detecting the beacon frame and reducing the energy loss caused by detecting the beacon frame of the ambient power-generating station.

[0135] In some embodiments, the energy supply signal received by the ambient power generating station on the at least one channel is further for discovering the ambient power generating station, thereby allowing the ambient power generating access point to discover the ambient power generating station, avoiding the ambient power generating station from blindly detecting discovery signals on all channels, reducing the delay caused by the detection of discovery signals, reducing the energy loss caused by the detection of the discovery signals of the ambient power generating station, and ensuring the communication reachability of the ambient power generating station.

[0136] Specifically, in the embodiment of the present application, for the operation of the AMP STA, the network needs to provide a basic energy supply signal. For example, the energy supply signal is transmitted on a predetermined channel in a certain frequency band, and when the AMP STA is low in power, it is preferable to obtain energy from the energy supply signal on the predetermined channel for subsequent operation. In this way, the AMP STA can avoid scanning for the energy supply signal when there is no energy stored or the energy is very low.

[0137] In some embodiments, the at least one channel belongs to one or more frequency bands. Specifically, for example, the at least one preset channel includes a specific channel in a specific frequency band, such as channel 1 in the 2.4 GHz band, or channels 40, 44, 149, 153, etc. in the 5 GHz band, and channels in frequency bands below 1 GHz. In the case of an ambient power-generating station, energy can be obtained on the at least one preset channel before being associated with an ambient power-generating access point.

[0138] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol and / or the frequency domain resources within which the ambient power generating station receives the energy supply signal within the at least one channel are defined by a protocol.

[0139] Specifically, for example, the frequency domain resource in which an ambient power generating station receives an energy supply signal in at least one channel may be a partial bandwidth of a 20 MHz channel in the 2.4 GHz frequency band. Here, the center frequencies of 14 overlapping channels in the 2.4 GHz frequency band may be spaced 5 MHz apart, as shown in Table 1 above. The effective bandwidth of each channel is 20 MHz, with an additional 2 MHz added as a separation bandwidth. For example, in a power-off state, an ambient power generating station needs to obtain a discovery signal on channel 1 in the 2.4 GHz band, perform corresponding energy accumulation, and then perform subsequent operations.

[0140] In some embodiments, the energy delivery signal received by the ambient power generating station on the at least one channel carries the first indication.

[0141] Here, the first indication information is information indicating the channel in which the energy supply signal of the ambient power generating station is located (e.g., a channel number or a channel index), or the first indication information is information indicating the channel set in which the energy supply signal of the ambient power generating station is located (e.g., a channel set number or a channel set index), or the first indication information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located (e.g., a frequency band number or a frequency band index).

[0142] Specifically, for example, after obtaining energy from an energy supply signal received on at least one preset channel, the ambient power generating station can directly obtain a channel or frequency band where another energy supply signal is located. For example, the first instruction information may be directly carried in the energy supply signal and may indicate the channel number or frequency band number of the other energy supply. Specifically, after obtaining the first instruction information, the ambient power generating station can retune to the corresponding channel or frequency band to obtain energy. Specifically, the first instruction information may indicate a channel set (i.e., a first channel set) including multiple channels. After the ambient power generating station obtains energy from an energy supply signal received on at least one preset channel, it can scan the channel or frequency band indicated by the first instruction information to obtain another energy supply signal. For example, an energy supply signal received on a channel preset to channel 1 in the 2.4 GHz band may carry first indication information, which may indicate that the channel set in which other energy supply signals are located (i.e., the first channel set) includes channels 6, 7, and 8.

[0143] In some embodiments, when the first instruction information is information for indicating a channel on which the energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as the channel on which the ambient power generating station performs communication.

[0144] In some embodiments, when the first indication information is information for indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication.

[0145] In some embodiments, when the first instruction information is information for indicating a frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0146] Specifically, to avoid the AMP STA constantly retuning between the energy collection channel and the communication channel, the energy supply signal and the communication-related channel are preferably on one channel or one frequency band.

[0147] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0148] In some embodiments, the energy delivery signal received by the ambient power generating station on the at least one channel carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0149] Optionally, the primary channel of the target BSS is the channel transmitted by the beacon frames of the target BSS.

[0150] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0151] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0152] Optionally, the beacon frame may be an AMP beacon frame, which may be a beacon frame dedicated to AMP STAs.

[0153] Optionally, the probe request frame may be an AMP probe request frame, which may be a probe request frame dedicated to AMP STAs. Optionally, the probe response frame may be an AMP response request frame, which may be a response request frame dedicated to AMP STAs.

[0154] Specifically, the AMP STA acquires the channel number of the primary channel of the target BSS or the number of a channel in the channel set of the target BSS while receiving energy supply, thereby reducing power consumption and delay in the subsequent process of the AMP STA scanning across multiple channels to determine the primary channel of the target BSS. The AMP STA can receive an AMP beacon frame, or transmit a probe request frame and receive a probe response frame on the channel indicated by the second indication. For example, an energy supply signal received on channel 1 in the 2.4 GHz band carries second indication information indicating that the primary channel of the target BSS is channel 6. The information carried in the energy supply signal can indicate not only the primary channel of the target BSS but also the ID information of the target BSS.

[0155] In some embodiments, the waveform of the energy delivery signal is generally a continuous wave (CW). The energy delivery signal can carry information (e.g., second instruction information) by amplitude modulation (e.g., OOK modulation). As shown in FIG. 5, the energy delivery signal is OOK modulated and carries information 101010 as the second instruction information. The energy delivery signal can be a periodic signal that repeatedly transmits the energy delivery information. The energy delivery signal can be transmitted in a certain frame structure including a portion carrying information and a portion not carrying information. Here, the portion not carrying information has a higher energy delivery efficiency than the portion carrying information.

[0156] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0157] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS includes a radio frequency energy source information element, which includes an operating class field indicating a frequency band on which the ambient power generating station will receive an energy delivery signal after associating with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy delivery signal after associating with the target BSS. Specifically, for example, a radio frequency energy source information element is shown in FIG.

[0158] Specifically, for example, an AMP STA can receive an AMP beacon frame on the primary channel by scanning the collected energy, and then acquire the parameters of the target BSS, thereby performing the subsequent association process. The AMP beacon frame can carry information related to the energy supply signal, such as a frequency band and channel, so that the AMP STA can obtain energy supply on the corresponding channel and therefore communicate on the same channel or a different channel. Here, the energy supply signal is a target BSS-specific energy supply signal required for the AMP STA to operate on the target BSS. The frequency band and channel may be indicated by operating class and channel information. Here, the operating class is an index number that corresponds to a set of channel frequency ranges, channel bandwidths, channel center frequencies, and standard requirements to be met.

[0159] In some embodiments, after the ambient power generating station is associated with an ambient power generating access point, the ambient power generating station receives an energy delivery signal transmitted from the ambient power generating access point, wherein the energy delivery signal received after the ambient power generating station is associated with the ambient power generating access point carries at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and transmission parameters of a beacon frame of the neighboring access point.

[0160] Optionally, the SSID of the neighboring access point may be a compressed SSID.

[0161] In some embodiments, the transmission parameters of the beacon frame of the neighboring access point include at least one of a beacon interval, a TBTT, and offset information in the time domain between the energy supply signal carrying the transmission parameters of the beacon frame of the neighboring access point and the TBTT (e.g., the latest TBTT).

[0162] In some embodiments, the energy delivery signal received after the ambient power generating station is associated with the ambient power generating access point is a discovery signal received after the ambient power generating station is associated with the ambient power generating access point.

[0163] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives an energy supply signal after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0164] Specifically, when an AMP STA is not associated with an ambient-power-harvesting access point, it acquires energy from an energy-supply signal on a pre-defined channel and performs a scanning process. When an AMP STA is associated with an ambient-power-harvesting access point, the AMP STA may move out of the coverage area of ​​the ambient-power-harvesting access point and therefore needs to perform a scanning process to discover a new AP. Currently, the STA scans multiple channels, searching for beacon frames transmitted by the AP, or actively transmitting probe request frames and waiting for probe response frames transmitted by the AP. The power consumption incurred during this scanning process is unacceptable for an AMP STA. Therefore, similar to the purpose of introducing the WUR discovery frame in 802.11ba, a scanning method that reduces power consumption during the AMP STA scanning process must be considered. Because an AMP STA requires energy, the AMP STA's scanning for energy-supply signals may be simultaneously performed while scanning neighboring BSSs.

[0165] Specifically, an ambient power-generating access point (AMP AP) uses an AMP beacon frame, a probe response frame, or other types of management or control frames to indicate to an ambient power-generating station (AMP STA) the frequency band and channel where the energy supply signal is located. The AMP AP can carry the compressed SSID of nearby APs and the primary channel information of the BSS corresponding to the AP in the energy supply signal. On these channels, the AMP STA scans for the energy supply signals to obtain the energy supply and also obtains the compressed SSID of nearby APs and the primary channel information of the BSS corresponding to the AP from these energy supply signals. This reduces the power consumption and delay of the AMP STA's direct scanning of multiple channels using the conventional STA scanning method. Furthermore, the energy supply signal can carry information such as the compressed SSID of a nearby AP and the primary channel information of the BSS corresponding to the AP, as well as transmission parameters of the Beacon frame, such as the beacon interval, target beacon transmission times (TBTTs), and time offset information between the (latest) TBTT and the energy supply signal carrying the above information.The AMP STA can detect the Beacon based on this information, thereby reducing the power consumption required to detect the Beacon frame.

[0166] In the embodiment of the present application, the energy supply signal not only has an energy supply function, but also serves as a discovery signal to assist the AMP STA in scanning nearby BSSs, thereby reducing power consumption. As shown in Figure 7, the AMP STA obtains the SSID and primary channel of nearby BSSs through the energy supply signal on channel 1, and directly detects Beacon frames on channel 6.

[0167] In some embodiments, the flow of BSS scanning by an AMP STA is shown in Figure 8. Specifically, the AMP STA can obtain wireless energy supply through a pre-configured channel, and if the energy collection of the AMP STA meets a condition (e.g., a communication condition of the AMP STA), the AMP STA scans at least one channel to receive a beacon frame and associates with the target BSS.

[0168] In some embodiments, the flow of a BSS scan by an AMP STA is shown in FIG. 9. During the progress of a scan to associate with a target BSS, the AMP STA may be unable to continue and complete the scan due to power consumption. If the AMP STA cannot continue operation with the collected energy, it can continue to obtain energy through a wireless energy supply signal on a pre-set channel. As shown in FIG. 9, during the process of scanning, the AMP STA determines whether the energy collection satisfies the conditions (e.g., satisfies the communication conditions of the AMP STA), and if so, continues the scan. If not, it needs to obtain energy through a wireless energy supply signal on a pre-set channel.

[0169] Therefore, in an embodiment of the present application, the ambient power generating station receives an energy supply signal on at least one pre-set channel, and avoids the ambient power generating station from blindly detecting the energy supply signal on all channels, thereby providing energy to the ambient power generating station more stably and efficiently and ensuring the communication reachability of the ambient power generating station.

[0170] Method embodiments of the present application have been described in detail above with reference to Figures 4 to 10. Apparatus embodiments of the present application will be described in detail below with reference to Figures 11 to 17, but it should be understood that apparatus embodiments correspond to method embodiments and similar descriptions can be referred to method embodiments.

[0171] 11 shows a schematic block diagram of an ambient power generating station 400 according to an embodiment of the present application. As shown in FIG. 11, the ambient power generating station 400 includes: It includes a communication unit 410 for receiving a discovery signal on at least one pre-configured channel.

[0172] In some embodiments, the discovery signal received on the at least one channel comprises: and carrying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

[0173] In some embodiments, the discovery signal received on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point.

[0174] In some embodiments, the transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between the TBTT and a discovery signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point.

[0175] In some embodiments, the ambient power generating station obtains energy from discovery signals received on the at least one channel.

[0176] In some embodiments, the at least one channel belongs to one or more frequency bands.

[0177] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol, and / or the frequency domain resources within which the ambient power generating station receives discovery signals within the at least one channel are defined by a protocol.

[0178] In some embodiments, the communication unit 410 specifically includes: and for receiving a discovery signal on the at least one channel prior to associating with the ambient power-generating access point.

[0179] In some embodiments, the discovery signal received by the ambient power-generating station on the at least one channel carries first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

[0180] In some embodiments, if the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication; or If the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or If the first instruction information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0181] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0182] In some embodiments, the discovery signal received by the ambient power-generating station on the at least one channel carries second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0183] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0184] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0185] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0186] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

[0187] In some embodiments, after the ambient power-generating station is associated with an ambient power-generating access point, the communication unit 410 is further for receiving a discovery signal transmitted from the ambient power-generating access point; A discovery signal received by the ambient power-generating station after it has associated with the ambient power-generating access point comprises: The SSID carries at least one of the SSID of the neighboring access point, the primary channel information of the BSS corresponding to the neighboring access point, and the transmission parameters of the beacon frame of the neighboring access point.

[0188] In some embodiments, the transmission parameters of the neighboring access point's beacon frame are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between the TBTT and a discovery signal carrying a transmission parameter of a beacon frame of the neighboring access point.

[0189] In some embodiments, the discovery signal received by the ambient power generating station after it has associated with the ambient power generating access point is an energy delivery signal received by the ambient power generating station after it has associated with the ambient power generating access point.

[0190] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives discovery signals after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0191] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or a system-on-chip. The processing unit may be one or more processors.

[0192] It should be understood that the ambient power generating station 400 according to the embodiments of the present application may correspond to the ambient power generating station in the method embodiments of the present application, and the above-described and other operations and / or functions of each unit in the ambient power generating station 400 are each for realizing the corresponding flow of the ambient power generating station in the method 200 shown in FIG. 4 and will not be repeated here for the sake of brevity.

[0193] 12 shows a schematic block diagram of an ambient power-generating access point 500 according to an embodiment of the present application. As shown in FIG. 12, the ambient power-generating access point 500 includes: It includes a communication unit 510 for transmitting a discovery signal to the ambient power generating station on at least one pre-configured channel.

[0194] In some embodiments, the discovery signal transmitted by the ambient power-generating access point on the at least one channel comprises: and carrying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

[0195] In some embodiments, the discovery signal transmitted by the ambient-powered access point on the at least one channel carries transmission parameters of a beacon frame of the ambient-powered access point.

[0196] In some embodiments, the transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between the TBTT and a discovery signal carrying transmission parameters of the beacon frame of the ambient power-generating access point.

[0197] In some embodiments, the ambient power generating station obtains energy from discovery signals received on the at least one channel.

[0198] In some embodiments, the at least one channel belongs to one or more frequency bands.

[0199] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol, and / or the frequency domain resources within which the ambient power generating station receives discovery signals within the at least one channel are defined by a protocol.

[0200] In some embodiments, the communication unit 510 specifically includes: and for transmitting a discovery signal to the ambient power generating station on the at least one channel before the ambient power generating station becomes associated with the ambient power generating access point.

[0201] In some embodiments, the discovery signal transmitted by the ambient-powered access point on the at least one channel carries first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

[0202] In some embodiments, if the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication; or If the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or If the first instruction information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0203] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0204] In some embodiments, the discovery signal transmitted by the ambient-powered access point on the at least one channel carries second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0205] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0206] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0207] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0208] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

[0209] In some embodiments, after the ambient power-generating station is associated with the ambient power-generating access point, the communication unit 510 is further for transmitting a discovery signal to the ambient power-generating station; A discovery signal received by the ambient power-generating station after it has associated with the ambient power-generating access point comprises: The SSID carries at least one of the SSID of the neighboring access point, the primary channel information of the BSS corresponding to the neighboring access point, and the transmission parameters of the beacon frame of the neighboring access point.

[0210] In some embodiments, the transmission parameters of the neighboring access point's beacon frame are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between the TBTT and a discovery signal carrying a transmission parameter of a beacon frame of the neighboring access point.

[0211] In some embodiments, the discovery signal received by the ambient power generating station after it has associated with the ambient power generating access point is an energy delivery signal received by the ambient power generating station after it has associated with the ambient power generating access point.

[0212] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives discovery signals after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0213] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or a system-on-chip. The processing unit may be one or more processors.

[0214] It should be understood that the ambient power-generating access point 500 according to the embodiments of the present application may correspond to the ambient power-generating access point in the embodiments of the method herein, and the above-described and other operations and / or functions of each unit in the ambient power-generating access point 500 are each for realizing the corresponding flow of the ambient power-generating access point in the method 200 shown in FIG. 4 and will not be repeated here for the sake of brevity.

[0215] 13 shows a schematic block diagram of an ambient power generating station 600 according to an embodiment of the present application. As shown in FIG. 13, the ambient power generating station 600 includes: It includes a communication unit 610 for receiving an energy supply signal on at least one pre-set channel.

[0216] In some embodiments, the energy delivery signal received on the at least one channel comprises: and carrying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

[0217] In some embodiments, the energy delivery signal received on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point.

[0218] In some embodiments, the transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between the TBTT and an energy supply signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point.

[0219] In some embodiments, the energy delivery signal received by the ambient power generating station on the at least one channel is further for discovering the ambient power generating station.

[0220] In some embodiments, the at least one channel belongs to one or more frequency bands.

[0221] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol and / or the frequency domain resources within which the ambient power generating station receives the energy supply signal within the at least one channel are defined by a protocol.

[0222] In some embodiments, the communication unit 610 specifically includes: and for receiving an energy delivery signal on the at least one channel prior to being associated with the ambient power-generating access point.

[0223] In some embodiments, the energy delivery signal received by the ambient power generating station on the at least one channel carries a first indication; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

[0224] In some embodiments, if the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication; or If the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or If the first instruction information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0225] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0226] In some embodiments, the energy delivery signal received by the ambient power generating station on the at least one channel carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0227] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0228] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0229] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0230] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

[0231] In some embodiments, after the ambient power-generating station is associated with an ambient power-generating access point, the communication unit 610 is further for receiving an energy delivery signal transmitted from the ambient power-generating access point; The energy delivery signal received by the ambient power generating station after it has associated with the ambient power generating access point comprises: The SSID carries at least one of the SSID of the neighboring access point, the primary channel information of the BSS corresponding to the neighboring access point, and the transmission parameters of the beacon frame of the neighboring access point.

[0232] In some embodiments, the transmission parameters of the neighboring access point's beacon frame are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between the TBTT and an energy supply signal carrying a transmission parameter of a beacon frame of the neighboring access point.

[0233] In some embodiments, the energy delivery signal received after the ambient power generating station is associated with the ambient power generating access point is a discovery signal received after the ambient power generating station is associated with the ambient power generating access point.

[0234] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives energy supply signals after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0235] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or a system-on-chip. The processing unit may be one or more processors.

[0236] It should be understood that the ambient power generating station 600 according to the embodiment of the present application may correspond to the ambient power generating station in the embodiment of the method of the present application, and the above-described and other operations and / or functions of each unit in the ambient power generating station 600 are each for realizing the corresponding flow of the ambient power generating station in the method 300 shown in FIG. 10 and will not be repeated here for the sake of brevity.

[0237] 14 shows a schematic block diagram of an ambient power-generating access point 700 according to an embodiment of the present application. As shown in FIG. 14, the ambient power-generating access point 700 includes: It includes a communication unit 710 for transmitting an energy supply signal to the ambient power generating station on at least one preset channel.

[0238] In some embodiments, the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel comprises: and carrying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

[0239] In some embodiments, the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point.

[0240] In some embodiments, the transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between the TBTT and an energy supply signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point.

[0241] In some embodiments, the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel is further for discovering the ambient power-generating station.

[0242] In some embodiments, the at least one channel belongs to one or more frequency bands.

[0243] In some embodiments, the frequency band to which the at least one channel belongs is defined by a protocol and / or the frequency domain resources within which the ambient power generating station receives the energy supply signal within the at least one channel are defined by a protocol.

[0244] In some embodiments, the communication unit 710 specifically includes: and for transmitting an energy supply signal to the ambient power generating station on the at least one channel before the ambient power generating station is associated with the ambient power generating access point.

[0245] In some embodiments, the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel carries first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

[0246] In some embodiments, if the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication; or If the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or If the first instruction information is information indicating the frequency band in which the energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as the frequency band in which the ambient power generating station performs communication.

[0247] In some embodiments, the energy delivery signal received by the ambient power generating station based on the first indication carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0248] In some embodiments, the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel carries second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating the number of a channel in the channel set of the target BSS, and / or the second indication information is for indicating the frequency band number in which the channel in the channel set of the target BSS is located.

[0249] In some embodiments, the second indication is further for indicating an identity of the target BSS.

[0250] In some embodiments, the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames.

[0251] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the primary channel of the target BSS carries first energy supply information, the first energy supply information being intended to indicate a channel and / or frequency band on which the ambient power generating station will receive an energy supply signal after becoming associated with the target BSS.

[0252] In some embodiments, the beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

[0253] In some embodiments, after the ambient power generating station is associated with the ambient power generating access point, the communication unit 710 is further for transmitting an energy supply signal to the ambient power generating station; The energy delivery signal received by the ambient power generating station after it has associated with the ambient power generating access point comprises: The SSID carries at least one of the SSID of the neighboring access point, the primary channel information of the BSS corresponding to the neighboring access point, and the transmission parameters of the beacon frame of the neighboring access point.

[0254] In some embodiments, the transmission parameters of the neighboring access point's beacon frame are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between the TBTT and an energy supply signal carrying a transmission parameter of a beacon frame of the neighboring access point.

[0255] In some embodiments, the energy delivery signal received after the ambient power generating station is associated with the ambient power generating access point is a discovery signal received after the ambient power generating station is associated with the ambient power generating access point.

[0256] In some embodiments, the channel and / or frequency band on which the ambient power-generating station receives energy supply signals after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame.

[0257] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or a system-on-chip. The processing unit may be one or more processors.

[0258] It should be understood that the ambient power-generating access point 700 according to the embodiments of the present application may correspond to the ambient power-generating access point in the embodiments of the method herein, and the above-described and other operations and / or functions of each unit in the ambient power-generating access point 700 are each for realizing the corresponding flow of the ambient power-generating access point in the method 300 shown in FIG. 10 and will not be repeated here for the sake of brevity.

[0259] Fig. 15 is a schematic diagram of a communication device 800 according to an embodiment of the present application. The communication device 800 shown in Fig. 15 includes a processor 810 that can call and execute a computer program from a memory to implement a method according to an embodiment of the present application.

[0260] 15, the communication device 800 may further include a memory 820. The processor 810 may call and execute a computer program from the memory 820 to implement the method in the embodiment of the present application.

[0261] Here, the memory 820 may be a separate device independent of the processor 810 or may be integrated into the processor 810.

[0262] 15, the communications device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, the communications device 800 may transmit information or data to other devices or receive information or data transmitted from other devices.

[0263] Here, the transceiver 830 may include a transmitter and a receiver, and may further include one or more antennas.

[0264] In some embodiments, the processor 810 may perform the functions of a processing unit in an ambient power generating station, or the processor 810 may perform the functions of a processing unit in an ambient power generating access point, which will not be repeated here for the sake of brevity.

[0265] In some embodiments, the transceiver 830 may perform the functions of a communication unit in an ambient power generating station, which will not be repeated here for the sake of brevity.

[0266] In some embodiments, the transceiver 830 may implement the functionality of a communication unit in an ambient power-generating access point, which will not be repeated here for the sake of brevity.

[0267] In some embodiments, the communication device 800 may specifically be an ambient power-generating access point of an embodiment of the present application, and the communication device 800 may implement the corresponding flow realized by the ambient power-generating access point in each method of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0268] In some embodiments, the communication device 800 may specifically be an ambient power generating station in an embodiment of the present application, and the communication device 800 may implement the corresponding flow realized by the ambient power generating station in each method of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0269] Fig. 16 is a schematic diagram of an apparatus 900 according to an embodiment of the present application. The apparatus 900 shown in Fig. 16 includes a processor 910 that can call and execute a computer program from a memory to implement the method according to an embodiment of the present application.

[0270] 16, the device 900 may further include a memory 920. The processor 910 may call and execute a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0271] Here, the memory 920 may be a separate device independent of the processor 910 or may be integrated into the processor 910.

[0272] In some embodiments, the processor 910 may perform the functions of a processing unit in an ambient power generating station, or the processor 910 may perform the functions of a processing unit in an ambient power generating access point, which will not be repeated here for the sake of brevity.

[0273] In some embodiments, the apparatus 900 may also include an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and in particular, to obtain information or data transmitted from other devices or chips. Optionally, the processor 910 may be located on-chip or off-chip.

[0274] In some embodiments, the input interface 930 may implement the functionality of a communication unit in an ambient power-generating station, or the input interface 930 may implement the functionality of a communication unit in an ambient power-generating access point.

[0275] In some embodiments, the apparatus 900 also includes an output interface 940. The processor 910 can control the output interface 940 to communicate with other devices or chips, and in particular, can output information or data to other devices or chips. Optionally, the processor 910 can be located on-chip or off-chip.

[0276] In some embodiments, output interface 940 may implement the functionality of a communication unit in an ambient power-generating station, or output interface 940 may implement the functionality of a communication unit in an ambient power-generating access point.

[0277] In some embodiments, the device may be applied to an ambient power-generating access point in the embodiments of the present application, and the device may implement the corresponding flow implemented by the ambient power-generating access point in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0278] In some embodiments, the device may be applied to an ambient power generating station in the embodiments of the present application, and the device may implement the corresponding flow implemented by the ambient power generating station in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0279] In some embodiments, the devices referred to in the embodiments of the present application may be chips, such as system-level chips, system chips, systems on chips, or systems on chips.

[0280] 17 is a schematic block diagram of a communication system 1000 according to an embodiment of the present application. As shown in FIG. 17, the communication system 1000 includes an ambient power generation station 1010 and an ambient power generation access point 1020.

[0281] Here, the ambient power generating station 1010 may be used to realize the corresponding functions realized by the ambient power generating station in the above method, and the ambient power generating access point 1020 may be used to realize the corresponding functions realized by the ambient power generating access point in the above method, which will not be repeated here for the sake of brevity.

[0282] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip capable of processing signals. In implementation, each step of the above method embodiments may be performed by a hardware integrated logic circuit in the processor or by instructions in software format. The processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or performed. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware decoding processor or by a combination of hardware and software modules in the decoding processor. The software modules may be located in storage media mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc. The storage medium is placed in a memory, and the processor reads information from the memory and completes the steps of the above method together with its hardware.

[0283] It should be understood that the memory in the embodiments of the present application may be volatile or nonvolatile memory, or may include both volatile and nonvolatile memory. Here, nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) used as an external cache. Many forms of RAM are available, including, by way of illustrative, but non-limiting examples, static random access memory (Static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM), and direct Rambus random access memory (Direct Rambus RAM, DRRAM). Note that memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0284] It should be understood that the above-mentioned memories are exemplary and not limiting. For example, the memories in the embodiments of the present application may be static random access memory (Static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM), and direct Rambus random access memory (Direct Rambus RAM, DRRAM). That is, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memory.

[0285] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0286] In some embodiments, the computer-readable storage medium may be applied to an ambient power-generating access point in the embodiments of the present application, and the computer program causes a computer to execute corresponding flows implemented by the ambient power-generating access point in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0287] In some embodiments, the computer-readable storage medium may be applied to an ambient power generating station in the embodiments of the present application, and the computer program causes a computer to execute corresponding flows implemented by the ambient power generating station in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0288] Embodiments of the present application further provide a computer program product including computer program instructions.

[0289] In some embodiments, the computer program product may be applied to an ambient power-generating access point in the embodiments of the present application, and the computer program instructions cause a computer to execute a corresponding flow implemented by the ambient power-generating access point in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0290] In some embodiments, the computer program product may be applied to an ambient power generating station in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding flows implemented by the ambient power generating station in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0291] An embodiment of the present application further provides a computer program.

[0292] In some embodiments, the computer program may be applied to an ambient power-generating access point in the embodiments of the present application, and when the computer program is executed on a computer, causes the computer to execute the corresponding flow realized by the ambient power-generating access point in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0293] In some embodiments, the computer program may be applied to an ambient power generating station in the embodiments of the present application, and when the computer program is executed on a computer, it causes the computer to execute the corresponding flow realized by the ambient power generating station in each method of the embodiments of the present application, which will not be repeated here for the sake of brevity.

[0294] As will be appreciated by those skilled in the art, each exemplary unit and algorithm step described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the invention. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementations should not be considered as departing from the scope of this application.

[0295] It will be apparent to those skilled in the art that the specific operational flows of the above-described systems, devices, and units will not be repeated here, as they may refer to the corresponding flows of the above-described method embodiments for convenience and conciseness of explanation.

[0296] It should be understood that in some embodiments of the present application, the disclosed systems, devices, and methods may be implemented in other forms. For example, the device embodiments described above are merely exemplary, and the division of the units is merely a division of logical functions. In actual implementation, other divisions may exist, for example, where multiple units or components are combined or integrated into another system, or where some features are ignored or not implemented. In other respects, the illustrated or described mutual couplings or direct couplings or communication connections may be indirect couplings or communication connections via some interfaces, devices, or units, and may be in electrical, mechanical, or other forms.

[0297] The units described as individual means above may or may not be physically separated, and the means shown as each unit may or may not be a physical unit, i.e., may be located in one place or may be distributed across multiple network units. To achieve the objectives of the invention according to this embodiment, some or all of the units may be selected according to actual needs.

[0298] Furthermore, each functional unit in each embodiment of the present application may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0299] The above functions may be realized in the form of software functional units and stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, in essence, or a portion that contributes to the prior art, or a portion of the technical solution, may be embodied in the form of a computer software product, which includes several instructions stored in a storage medium and causes a computer device (which may be a personal computer PC, a server, a network device, etc.) to execute all or some of the steps of the methods described in each embodiment of the present application. The storage medium includes various media capable of storing program code, such as a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0300] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto, and any modifications or replacements that can be easily thought up by a person skilled in the art within the technical scope disclosed by the present application shall be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be governed by the claims.

Claims

1. 1. A method of wireless communication, comprising: The method includes a step of receiving a discovery signal by the ambient power generating station on at least one preset channel. A method of wireless communication.

2. The discovery signal received on the at least one channel comprises: and conveying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point. The method of claim 1.

3. the discovery signal received on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point.

3. The method according to claim 1 or 2.

4. The transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between a discovery signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point and the TBTT. The method of claim 3.

5. the ambient power generating station obtains energy from a discovery signal received on the at least one channel.

5. The method according to any one of claims 1 to 4.

6. The at least one channel belongs to one or more frequency bands.

6. The method according to any one of claims 1 to 5.

7. a frequency band to which the at least one channel belongs is defined by a protocol, and / or a frequency domain resource in which the ambient power generating station receives a discovery signal in the at least one channel is defined by a protocol.

7. The method according to any one of claims 1 to 6.

8. The step of receiving a discovery signal by the ambient power generating station on at least one preset channel includes: receiving a discovery signal on the at least one channel before the ambient power-generating station associates with an ambient power-generating access point; 8. The method according to any one of claims 1 to 7.

9. a discovery signal received by the ambient power-generating station on the at least one channel carrying first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

9. The method according to any one of claims 1 to 8.

10. If the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication, or When the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or When the first instruction information is information indicating a frequency band in which an energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as a frequency band in which the ambient power generating station performs communication.

10. The method of claim 9.

11. the energy supply signal received by the ambient power generating station based on the first indication carries second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

11. The method according to claim 9 or 10.

12. the discovery signal received by the ambient power-generating station on the at least one channel carries second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

11. The method according to any one of claims 1 to 10.

13. The second instruction information is further for indicating identification information of the target BSS.

13. The method of claim 11 or 12.

14. the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames; 14. The method according to any one of claims 11 to 13.

15. a beacon frame or a probe response frame received by the ambient power generating station on a primary channel of the target BSS carries first energy supply information, the first energy supply information being for indicating a channel and / or a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS; 15. The method of claim 14.

16. The beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

16. The method of claim 15.

17. After the ambient power generating station is associated with an ambient power generating access point, the method includes: The method further includes receiving, by the ambient power-generating station, a discovery signal transmitted from the ambient power-generating access point; a discovery signal received by the ambient power-generating station after the ambient power-generating station has associated with the ambient power-generating access point; and carrying at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and a transmission parameter of a beacon frame of the neighboring access point.

17. The method of any one of claims 1 to 16.

18. The transmission parameters of the beacon frame of the neighboring access point are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between a discovery signal carrying a transmission parameter of a beacon frame of the neighboring access point and the TBTT.

18. The method of claim 17.

19. the discovery signal received after the ambient power generating station has associated with the ambient power generating access point is an energy supply signal received after the ambient power generating station has associated with the ambient power generating access point.

19. The method of claim 17 or 18.

20. a channel and / or frequency band on which the ambient power-generating station receives a discovery signal after being associated with the ambient power-generating access point, the channel and / or frequency band being indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame; 20. The method of any one of claims 17 to 19.

21. The ambient power-generating access point transmits a discovery signal to the ambient power-generating station on at least one preset channel. A method of wireless communication.

22. The discovery signal transmitted by the ambient power-generating access point on the at least one channel comprises: and conveying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

22. The method of claim 21.

23. a discovery signal transmitted by the ambient-power-generating access point on the at least one channel carrying transmission parameters of a beacon frame of the ambient-power-generating access point; 23. The method of claim 21 or 22.

24. The transmission parameters of the beacon frame of the ambient power-generating access point are: The information includes at least one of a beacon interval, a target beacon transmission time TBTT, and offset information in the time domain between a discovery signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point and the TBTT.

24. The method of claim 23.

25. the ambient power generating station obtains energy from a discovery signal received on the at least one channel.

25. The method of any one of claims 21 to 24.

26. The at least one channel belongs to one or more frequency bands.

26. The method of any one of claims 21 to 25.

27. a frequency band to which the at least one channel belongs is defined by a protocol, and / or a frequency domain resource in which the ambient power generating station receives a discovery signal in the at least one channel is defined by a protocol.

27. The method of any one of claims 21 to 26.

28. The step of transmitting a discovery signal by the ambient power-generating access point to an ambient power-generating station on at least one preset channel includes: the ambient power-generating access point transmitting a discovery signal to the ambient power-generating station on the at least one channel before the ambient power-generating station becomes associated with the ambient power-generating access point.

28. The method of any one of claims 21 to 27.

29. a discovery signal transmitted by the ambient power-generating access point on the at least one channel carrying first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

29. The method of any one of claims 21 to 28.

30. If the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication, or When the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or When the first instruction information is information indicating a frequency band in which an energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as a frequency band in which the ambient power generating station performs communication.

30. The method of claim 29.

31. the energy supply signal received by the ambient power generating station based on the first indication carries second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

31. The method of claim 29 or 30.

32. a discovery signal transmitted by the ambient power-generating access point on the at least one channel carrying second indication information; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

31. The method of any one of claims 21 to 30.

33. The second instruction information is further for indicating identification information of the target BSS.

33. The method of claim 31 or 32.

34. the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames; 34. The method of any one of claims 31 to 33.

35. a beacon frame or a probe response frame received by the ambient power generating station on a primary channel of the target BSS carries first energy supply information, the first energy supply information being for indicating a channel and / or a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS; 35. The method of claim 34.

36. The beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

36. The method of claim 35.

37. After the ambient power generating station is associated with the ambient power generating access point, the method comprises: the ambient power-generating access point transmitting a discovery signal to the ambient power-generating station; a discovery signal received by the ambient power-generating station after the ambient power-generating station has associated with the ambient power-generating access point; and carrying at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and a transmission parameter of a beacon frame of the neighboring access point.

37. The method of any one of claims 21 to 36.

38. The transmission parameters of the beacon frame of the neighboring access point are: The information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between a discovery signal carrying a transmission parameter of a beacon frame of the neighboring access point and the TBTT.

38. The method of claim 37.

39. the discovery signal received after the ambient power generating station has associated with the ambient power generating access point is an energy supply signal received after the ambient power generating station has associated with the ambient power generating access point.

39. The method of claim 37 or 38.

40. a channel and / or frequency band on which the ambient power-generating station receives a discovery signal after being associated with the ambient power-generating access point, the channel and / or frequency band being indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame; 40. The method of any one of claims 37 to 39.

41. The method includes a step of receiving an energy supply signal by the ambient power generating station on at least one preset channel. A method of wireless communication.

42. The energy delivery signal received on the at least one channel comprises: and conveying at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

42. The method of claim 41.

43. the energy supply signal received on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point; 43. The method of claim 41 or 42.

44. The transmission parameters of the beacon frame of the ambient power-generating access point are: The beacon frame information includes at least one of a beacon interval, a target beacon transmission time TBTT, and a time domain offset information between an energy supply signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point and the TBTT.

44. The method of claim 43.

45. The energy supply signal received by the ambient power generating station on the at least one channel is further for discovering the ambient power generating station.

45. The method of any one of claims 41 to 44.

46. The at least one channel belongs to one or more frequency bands.

46. ​​The method of any one of claims 41 to 45.

47. a frequency band to which the at least one channel belongs is defined by a protocol, and / or a frequency domain resource in which the ambient power generating station receives an energy supply signal within the at least one channel is defined by a protocol, 47. The method of any one of claims 41 to 46.

48. The step of receiving an energy supply signal by the ambient power generating station on at least one preset channel includes: the ambient power generating station receiving an energy supply signal on the at least one channel before associating with an ambient power generating access point.

48. The method of any one of claims 41 to 47.

49. the energy supply signal received by the ambient power generating station on the at least one channel carries a first indication; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

49. The method of any one of claims 41 to 48.

50. If the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication, or When the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or When the first instruction information is information indicating a frequency band in which an energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as a frequency band in which the ambient power generating station performs communication.

50. The method of claim 49.

51. the energy supply signal received by the ambient power generating station based on the first indication carries second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

51. The method of claim 49 or 50.

52. the energy supply signal received by the ambient power generating station on the at least one channel carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

51. The method of any one of claims 41 to 50.

53. The second instruction information is further for indicating identification information of the target BSS.

53. The method of claim 51 or 52.

54. the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames; 54. A method according to any one of claims 51 to 53.

55. a beacon frame or a probe response frame received by the ambient power generating station on a primary channel of the target BSS carries first energy supply information, the first energy supply information being for indicating a channel and / or a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS; 55. The method of claim 54.

56. The beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

56. The method of claim 55.

57. After the ambient power generating station is associated with an ambient power generating access point, the method includes: The ambient power generating station further includes receiving an energy supply signal transmitted from the ambient power generating access point; The energy supply signal received by the ambient power generating station after the ambient power generating station has associated with the ambient power generating access point comprises: and carrying at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and a transmission parameter of a beacon frame of the neighboring access point.

57. The method of any one of claims 41 to 56.

58. The transmission parameters of the beacon frame of the neighboring access point are: The beacon frame information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between an energy supply signal carrying a transmission parameter of a beacon frame of the neighboring access point and the TBTT.

58. The method of claim 57.

59. the energy supply signal received after the ambient power generating station has associated with the ambient power generating access point is a discovery signal received after the ambient power generating station has associated with the ambient power generating access point.

59. The method of claim 57 or 58.

60. a channel and / or frequency band on which the ambient power-generating station receives an energy supply signal after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame; 60. The method of any one of claims 57 to 59.

61. The method includes a step of transmitting an energy supply signal to the ambient power generation station by the ambient power generation access point on at least one preset channel. A method of wireless communication.

62. The energy supply signal transmitted by the ambient power-generating access point on the at least one channel comprises: The ambient power-generating access point carries at least one of a service set identifier (SSID) of the ambient power-generating access point and primary channel information of a basic service set (BSS) corresponding to the ambient power-generating access point.

62. The method of claim 61.

63. the energy supply signal transmitted by the ambient power-generating access point on the at least one channel carries transmission parameters of a beacon frame of the ambient power-generating access point; 63. The method of claim 61 or 62.

64. The transmission parameters of the beacon frame of the ambient power-generating access point are: The beacon frame information includes at least one of a beacon interval, a target beacon transmission time TBTT, and a time domain offset information between an energy supply signal carrying a transmission parameter of a beacon frame of the ambient power-generating access point and the TBTT.

64. The method of claim 63.

65. the energy supply signal transmitted by the ambient power-generating access point on the at least one channel is further for discovering the ambient power-generating station.

65. The method of any one of claims 61 to 64.

66. The at least one channel belongs to one or more frequency bands.

66. The method of any one of claims 61 to 65.

67. a frequency band to which the at least one channel belongs is defined by a protocol, and / or a frequency domain resource in which the ambient power generating station receives an energy supply signal within the at least one channel is defined by a protocol, 67. The method of any one of claims 61 to 66.

68. The step of transmitting an energy supply signal from the ambient power generation access point to the ambient power generation station on at least one preset channel includes: the ambient power generating access point transmitting an energy supply signal to the ambient power generating station on the at least one channel before the ambient power generating station is associated with the ambient power generating access point.

68. The method of any one of claims 61 to 67.

69. the energy delivery signal transmitted by the ambient power-generating access point on the at least one channel carries first indication information; The first indication information is information indicating a channel in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, or the first indication information is information indicating a frequency band in which the energy supply signal of the ambient power generating station is located.

69. The method of any one of claims 61 to 68.

70. If the first indication information is information indicating a channel on which an energy supply signal of the ambient power generating station is located, the channel on which the energy supply signal of the ambient power generating station is located is the same as a channel on which the ambient power generating station performs communication, or When the first indication information is information indicating a channel set in which the energy supply signal of the ambient power generating station is located, the channel set in which the energy supply signal of the ambient power generating station is located includes a channel on which the ambient power generating station performs communication, or When the first instruction information is information indicating a frequency band in which an energy supply signal of the ambient power generating station is located, the frequency band in which the energy supply signal of the ambient power generating station is located is the same as a frequency band in which the ambient power generating station performs communication.

70. The method of claim 69.

71. the energy supply signal received by the ambient power generating station based on the first indication carries second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

71. The method of claim 69 or 70.

72. the energy supply signal received by the ambient power generating station on the at least one channel carries a second indication; The second indication information is for indicating a channel number of a primary channel of the target BSS, and / or the second indication information is for indicating a frequency band number in which the primary channel of the target BSS is located, or The second indication information is for indicating a channel number in a channel set of the target BSS, and / or the second indication information is for indicating a frequency band number in which the channel in the channel set of the target BSS is located.

71. The method of any one of claims 61 to 70.

73. The second instruction information is further for indicating identification information of the target BSS.

73. The method of claim 71 or 72.

74. the primary channel of the target BSS is for the ambient power-generating station to receive beacon frames, and / or the primary channel of the target BSS is for the ambient power-generating station to transmit probe request frames, and / or the primary channel of the target BSS is for the ambient power-generating station to receive probe response frames; 74. The method of any one of claims 71 to 73.

75. a beacon frame or a probe response frame received by the ambient power generating station on a primary channel of the target BSS carries first energy supply information, the first energy supply information being for indicating a channel and / or a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS; 75. The method of claim 74.

76. The beacon frame or probe response frame received by the ambient power generating station on the master channel of the target BSS includes a radio frequency energy source information element, the radio frequency energy source information element including an operating class field indicating a frequency band on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS, and a channel field indicating a channel on which the ambient power generating station will receive an energy supply signal after being associated with the target BSS.

76. The method of claim 75.

77. After the ambient power generating station is associated with the ambient power generating access point, the method comprises: the ambient power generation access point transmitting an energy supply signal to the ambient power generation station; The energy supply signal received by the ambient power generating station after the ambient power generating station has associated with the ambient power generating access point comprises: and carrying at least one of an SSID of a neighboring access point, primary channel information of a BSS corresponding to the neighboring access point, and a transmission parameter of a beacon frame of the neighboring access point.

77. A method according to any one of claims 61 to 76.

78. The transmission parameters of the beacon frame of the neighboring access point are: The beacon frame information includes at least one of a beacon interval, a TBTT, and offset information in the time domain between an energy supply signal carrying a transmission parameter of a beacon frame of the neighboring access point and the TBTT.

78. The method of claim 77.

79. the energy supply signal received after the ambient power generating station has associated with the ambient power generating access point is a discovery signal received after the ambient power generating station has associated with the ambient power generating access point.

79. The method of claim 77 or 78.

80. a channel and / or frequency band on which the ambient power-generating station receives an energy supply signal after being associated with the ambient power-generating access point is indicated by the ambient power-generating access point in at least one of a beacon frame, a probe response frame, a management frame, and a control frame; 80. The method of any one of claims 77 to 79.

81. a communication unit for receiving a discovery signal on at least one preset channel, Ambient power generation station.

82. a communication unit for transmitting a discovery signal to the ambient power generating station on at least one preset channel; Ambient power generation access point.

83. a communication unit for receiving an energy supply signal on at least one preset channel, Ambient power generation station.

84. a communication unit for transmitting an energy supply signal to the ambient power generating station on at least one preset channel, Ambient power generation access point.

85. 1. An ambient power generating station, comprising: a memory for storing a computer program; and a processor for calling and executing the computer program stored in the memory to cause the ambient power generating station to perform the method of any one of claims 1 to 20. Ambient power generation station.

86. An ambient power generation access point, comprising: a memory for storing a computer program; and a processor for calling and executing the computer program stored in the memory to cause the ambient power-generating access point to perform the method of any one of claims 21 to 40. Ambient power generation access point.

87. 1. An ambient power generating station, comprising: a memory for storing a computer program; and a processor for calling and executing the computer program stored in the memory to cause the ambient power generating station to perform the method of any one of claims 41 to 60. Ambient power generation station.

88. An ambient power generation access point, comprising: a memory for storing a computer program; and a processor for calling and executing the computer program stored in the memory to cause the ambient power-generating access point to perform the method of any one of claims 61 to 80. Ambient power generation access point.

89. A chip, comprising a processor for calling and executing a computer program from a memory to cause a device equipped with the chip to execute the method of any one of claims 1 to 20, or to cause a device equipped with the chip to execute the method of any one of claims 21 to 40, or to cause a device equipped with the chip to execute the method of any one of claims 41 to 60, or to cause a device equipped with the chip to execute the method of any one of claims 61 to 80. Tips.

90. storing a computer program which, when executed, results in the implementation of a method according to any one of claims 1 to 20, or in the implementation of a method according to any one of claims 21 to 40, or in the implementation of a method according to any one of claims 41 to 60, or in the implementation of a method according to any one of claims 61 to 80; A computer-readable storage medium.

91. comprising computer program instructions which, when executed, cause the method of any one of claims 1 to 20 to be implemented, or the method of any one of claims 21 to 40 to be implemented, or the method of any one of claims 41 to 60 to be implemented, or the method of any one of claims 61 to 80 to be implemented. Computer program products.

92. When executed, the method according to any one of claims 1 to 20 is realized, or the method according to any one of claims 21 to 40 is realized, or the method according to any one of claims 41 to 60 is realized, or the method according to any one of claims 61 to 80 is realized. Computer program.

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