Device access method and apparatus for ambient energy system, device, and medium

Abstract

The present application relates to the field of wireless communications, and discloses a device access method and apparatus for an ambient energy system, a device, and a medium. The method is executed by an ambient energy device, and comprises: sending a first signal, the first signal comprising a first identifier and / or a second identifier, wherein the first identifier is used for indicating N-bit information randomly generated by the ambient energy device, N is an integer greater than or equal to 1, and the second identifier is used for indicating device identifier information of the ambient energy device. The method simplifies the access procedure, reducing the access delay.

Description

Device access method, device, apparatus and medium of environmental energy system TECHNICAL FIELD

[0001] The present application relates to the field of wireless communication, in particular to a device access method, device, apparatus and medium of environmental energy system. BACKGROUND

[0002] There is a kind of environmental energy device that supports working with environmental energy. The communication of the environmental energy device can have the characteristics of a large number of users transmitting and receiving in a short time. However, there is no feasible solution for how the environmental energy device accesses the network.

[0003] SUMMARY

[0004] The present application provides a device access method, device, apparatus and medium of environmental energy system, which at least includes:

[0005] According to an aspect of the embodiments of the present application, a device access method of environmental energy system is provided, which is executed by an environmental energy device, and the method comprises:

[0006] sending a first signal, wherein the first signal comprises a first identifier and / or a second identifier; wherein the first identifier is used to indicate N-bit information randomly generated by the environmental energy device, N is an integer greater than or equal to 1, and the second identifier is used to indicate device identifier information of the environmental energy device.

[0007] According to another aspect of the embodiments of the present application, a device access method of environmental energy system is provided, which is executed by an access device, and the method comprises:

[0008] receiving a first signal, wherein the first signal comprises a first identifier and / or a second identifier; wherein the first identifier is used to indicate N-bit information randomly generated by the environmental energy device, N is an integer greater than or equal to 1, and the second identifier is used to indicate device identifier information of the environmental energy device.

[0009] According to an aspect of the embodiments of the present application, a device access apparatus of environmental energy system is provided, which comprises:

[0010] a sending module, configured to send a first signal, wherein the first signal comprises a first identifier and / or a second identifier; wherein the first identifier is used to indicate N-bit information randomly generated by the apparatus, N is an integer greater than or equal to 1, and the second identifier is used to indicate device identifier information of the apparatus.

[0011] According to another aspect of the embodiments of the present application, a device access apparatus of environmental energy system is provided, which comprises:

[0012] receive a first signal, the first signal comprising a first identifier and / or a second identifier; wherein the first identifier is used to indicate N-bit information randomly generated by an ambient energy device, N being an integer greater than or equal to 1, and the second identifier is used to indicate device identifier information of the ambient energy device.

[0013] According to an aspect of the embodiments of the present application, there is provided a communication device of an ambient energy system, comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the device access method of the ambient energy system according to the various aspects described above.

[0014] According to another aspect of the embodiments of the present application, there is provided a communication device of an ambient energy system, comprising: a transceiver; and the communication device is configured to implement the device access method of the ambient energy system according to the various aspects described above.

[0015] According to an aspect of the embodiments of the present application, there is provided a computer readable storage medium having stored therein at least one program, the at least one program being loadable into a processor and executable by the processor to implement the device access method of the ambient energy system according to the various aspects described above.

[0016] According to an aspect of the embodiments of the present application, there is provided a computer program product or a computer program, the computer program product or the computer program comprising computer instructions stored in a computer readable storage medium, the computer instructions being obtainable by a processor from the computer readable storage medium, and the processor being configured to execute the computer instructions to implement the device access method of the ambient energy system according to the various aspects described above.

[0017] According to an aspect of the embodiments of the present application, there is provided a chip, comprising a programmable logic circuit and / or at least one program, the chip being configured to implement the device access method of the ambient energy system according to the various aspects described above based on the programmable logic circuit and / or the at least one program.

[0018] The technical solutions provided by the embodiments of the present application can have the following beneficial effects:

[0019] The ambient energy device is enabled to send a first signal comprising a first identifier and / or a second identifier, so as to implement the access of the ambient energy device. Since the first identifier and the second identifier can be carried in the first signal at the same time, the access process of the ambient energy device is simplified, the number of sending times of the ambient energy device is reduced, the access efficiency is improved, the access delay is reduced, the probability of resource conflict is reduced, and the use efficiency of the frequency spectrum is improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 shows a schematic diagram of a wireless communication system provided in an exemplary embodiment of this application;

[0022] Figure 2 shows a schematic diagram of an environmental energy system provided in an exemplary embodiment of this application;

[0023] Figure 3 shows a schematic diagram of radio frequency energy harvesting provided in an exemplary embodiment of this application;

[0024] Figure 4 shows a schematic diagram of a backscatter communication process provided in an exemplary embodiment of this application;

[0025] Figure 5 shows a schematic diagram of resistive load modulation provided in an exemplary embodiment of this application;

[0026] Figure 6 shows a schematic diagram of an encoding method provided in an exemplary embodiment of this application;

[0027] Figure 7 shows a flowchart illustrating a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0028] Figure 8 shows a flowchart illustrating a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0029] Figure 9 shows a flowchart illustrating a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0030] Figure 10 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0031] Figure 11 shows a schematic diagram of the structure of a first signal provided in an exemplary embodiment of this application;

[0032] Figure 12 shows a schematic diagram of the first signal and confirmation information provided in an exemplary embodiment of this application;

[0033] Figure 13 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0034] Figure 14 illustrates a schematic diagram of a second frequency domain resource provided in an exemplary embodiment of this application;

[0035] Figure 15 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0036] Figure 16 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0037] Figure 17 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application;

[0038] Figure 18 shows a structural block diagram of an equipment access device for an environmental energy system provided in an exemplary embodiment of this application;

[0039] Figure 19 shows a structural block diagram of an equipment access device for an environmental energy system provided in an exemplary embodiment of this application;

[0040] Figure 20 shows a schematic diagram of the structure of a communication device for an environmental energy system provided in an exemplary embodiment of this application;

[0041] Figure 21 shows a schematic diagram of the structure of a communication device for an environmental energy system provided in an exemplary embodiment of this application. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail here, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms first, second, third, etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination." In this specification, when expressing the meaning of Boolean Values, it is expressed that "0" represents "first meaning" and "1" represents "second meaning." Without loss of generality, those skilled in the art will understand that the meanings they represent can be interchanged, that is, "1" represents "first meaning" and "0" represents "second meaning."

[0045] The technical solutions described in some embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, 5th Generation (5G) systems, cellular IoT systems, cellular passive IoT systems, subsequent evolution systems of NR systems, Beyond 5th Generation (B5G) systems, 6G and subsequent evolution systems, Wireless Local Area Networks (WLAN) systems, Wireless Fidelity (Wi-Fi) systems, Global System for Mobile Communication (GSM) systems, Code Division Multiple Access (CDMA) systems, and Wideband Code Division Multiple Access (CDMA) systems. Systems such as Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Terrestrial Networks (TN), Non-Terrestrial Networks (NTN), Universal Mobile Telecommunication System (UMTS), and Worldwide Interoperability for Microwave Access (WiMAX) are included.

[0046] Figure 1 illustrates a schematic diagram of a wireless communication system 100 provided in an exemplary embodiment of this application. The wireless communication system 100 includes terminal devices with terminal devices, or terminal devices with network devices, or stations (STAs) with stations; this application does not limit the specific examples. Figure 1 uses an example where the wireless communication system 100 includes network device 110 and terminal device 120.

[0047] The network device 110 in this application supports wireless communication functions, including but not limited to: Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), Radio Network Controller (RNC), Base Station (BS), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Evolved Node B (or Home Node B, HNB), Baseband Unit (BBU), Distributed Unit (DU), Wireless Relay Node, Wireless Backhaul Node, Transmission Point (TP), Transmission and Reception Point (TRP), Antenna Panel, Router, etc.

[0048] The terminal device 120 in this application, also referred to as user equipment (UE), includes, but is not limited to: mobile phones, tablets, e-book readers, laptops, desktop computers, televisions, virtual reality (VR) devices, augmented reality (AR) devices, mixed reality (MR) devices, extended reality (XR) devices, remote terminals, set-top boxes, vehicle communication equipment, handheld devices, wearable devices, wireless devices in industrial control, wireless devices in self-driving, wireless devices in remote medical care, wireless devices in smart grids, wireless devices in transportation safety, wireless devices in smart cities, wireless devices in smart homes (such as smart cameras, smart remote controls, smart water and electricity meters, etc.), wireless communication chips, application-specific integrated circuits (ASICs), systems-on-chips (SoCs), and Internet of Things (IoT) devices. Things (IoT) nodes, Internet of Vehicles (IoV) nodes, sensors, etc., can also be computing devices with wireless communication capabilities or other processing devices connected to a wireless modem.

[0049] In some embodiments, both network device 110 and terminal device 120 support the 3rd Generation Partnership Project (3GPP) protocol, but are not limited to the 3GPP protocol.

[0050] In some embodiments, the frequency bands supported by the wireless communication system 100 include, but are not limited to: millimeter wave (mmWave) bands (such as 45GHz, 60GHz, etc., which belong to the 30-300GHz range) and low-frequency bands. Among them, low-frequency bands include Sub-7GHz bands (such as 2.4GHz, 5GHz, 6GHz, etc., which belong to the 1-7.25GHz range).

[0051] • Regarding environmental energy communication technology:

[0052] Key technologies in ambient energy communication primarily include energy harvesting and backscatter communication. Terminal devices employing ambient energy communication technology can be called ambient energy (Ambient Power) devices. In some cases, ambient energy devices may also be referred to as at least one of the following: Ambient Power Enabled Internet of Things (AIoT) devices, Passive IoT devices, zero-power devices, low-power devices, and ultra-low-power devices. In other cases, ambient energy devices may be simply referred to as at least one of the following: Ambient IoT devices, A-IoT devices, AMP devices, and AMP IoT devices.

[0053] Figure 2 shows a schematic diagram of an ambient energy system 200 provided in an exemplary embodiment of this application. The ambient energy system, also referred to as an ambient energy communication network, mainly consists of a network device 210 and an ambient energy device 220. The network device 210 is used to send wireless power supply signals and / or downlink communication signals to the ambient energy device 220, and to receive backscattered signals from the ambient energy device 220.

[0054] A basic ambient energy device 220 includes an energy harvesting module 321. Optionally, in addition to the energy harvesting module 321, the ambient energy device 220 may also include one or more of the following: a backscatter communication module 322, a logic processing module 323, a sensor module 324, and a memory (not shown in the figure). For example, the logic processing module 323 includes a low-power computing module. It should be understood that the modules included in the ambient energy device 220 shown in Figure 2 are merely an example and not a limitation. For example, the energy harvesting module 321 can harvest ambient energy, such as radio frequency energy, light energy, kinetic energy, mechanical energy, solar energy, etc., to power the various modules of the ambient energy device 220. After acquiring energy, the ambient energy device 220 can receive signals from the network device 210 via a receiver, or backscatter signals to the network device 210 via the backscatter communication module 322, or transmit signals to the network device 210 via a transmitter (not shown in the figure). The data backscattered or transmitted by the ambient energy device 220 can be its own stored data (such as identification or pre-written information, such as the production date, brand, and manufacturer of a product). The sensor module 324 can include various sensors, and the environmental energy device 220 can report the data collected by these sensors based on a low-power mechanism. The memory is used to store basic information (such as object identification) or to acquire sensor data such as ambient temperature and humidity. The environmental energy device 220 can use a logic processing module 323 to perform simple signal demodulation, decoding, encoding, modulation, and other simple computational tasks. The hardware design can be very simple, resulting in a low-cost and small-sized environmental energy device 220.

[0055] Figure 3 shows the schematic diagram of radio frequency power harvesting (RF Power Harvesting) performed by the power harvesting module 321. RF power harvesting is based on the principle of electromagnetic induction. The RF module, through electromagnetic induction and connected in parallel with a capacitor C and a load resistor RL, harvests electromagnetic wave energy from space to obtain the energy required to drive the environmental power device 220. This energy is used to power the low-power demodulation module, modulation module, sensors, and memory access. Therefore, the environmental power device 220 does not require a traditional battery.

[0056] In backscatter communication, the backscatter signal can be modulated or not. Figure 4 shows a schematic diagram of backscatter communication with modulation. The transmit (TX) module 111 of network device 210 uses an amplifier (AMP) 112 to transmit a wireless signal carrier 131. The ambient energy device 220 receives and modulates the wireless signal carrier 131, uses a logic processing module 323 to load the information to be transmitted, and uses an energy harvesting module 321 to harvest radio frequency energy. The ambient energy device 220 uses an antenna 316 to radiate the modulated backscatter signal 132. This information transmission process is called backscatter communication. The receive (RX) module 113 of network device 210 uses a low-noise amplifier (LNA) 114 to receive the modulated backscatter signal 132. Backscatter and load modulation functions are inseparable. Load modulation adjusts and controls the circuit parameters of the oscillation circuit of the ambient energy device 220 according to the data flow rhythm, causing parameters such as the impedance of the ambient energy device 220 to change accordingly, thus completing the modulation process.

[0057] Load modulation techniques mainly include resistive load modulation and capacitive load modulation. Figure 5 shows the schematic diagram of resistive load modulation. In resistive load modulation, the load resistance R... L A third resistor R3 is connected in parallel. A switch S, controlled by binary encoding, is used to turn the circuit on or off. The switching of the third resistor R3 causes a change in the voltage across the circuit. The load resistor R... L It is connected in parallel with the first capacitor C1, and the load resistor R L The first inductor L1 is connected in series with the second resistor R2, and the second resistor R2 is connected in series with the first inductor L1. The first inductor L1 is coupled to the second inductor L2, and the second inductor L2 is connected in series with the second capacitor C2. For example, ASK modulation can be implemented, that is, signal modulation and transmission are achieved by adjusting the amplitude of the backscattered signal of the terminal device. Similarly, in capacitive load modulation, the resonant frequency of the circuit can be changed by switching the capacitor on and off, realizing Frequency Shift Keying (FSK) modulation, that is, signal modulation and transmission are achieved by adjusting the operating frequency of the backscattered signal of the terminal device.

[0058] As can be seen, the ambient energy device 220 modulates the incoming wave signal by means of load modulation, thereby realizing the backscatter communication process. Therefore, the ambient energy device has significant advantages: (1) it does not actively transmit signals, so it does not need complex radio frequency links, such as PA, radio frequency filters, etc.; (2) it does not need to actively generate high frequency signals, so it does not need high frequency crystal oscillators; (3) by means of backscatter communication, signal transmission does not consume its own energy.

[0059] 3GPP research projects generally support the implementation of the following types of environmental energy devices:

[0060] Device Type 1: Peak power consumption of approximately 1 microwatt (~1 μW), with energy storage capability, and an initial sampling frequency offset (SFO) of up to 10. x ppm (Parts Per Million). Neither downlink nor uplink transmissions have amplifiers. Uplink transmission is achieved through backscattering of an externally supplied carrier. Where x is greater than 0.

[0061] Device type 2a: Peak power consumption less than or equal to several hundred microwatts (≤ a few hundred μW), with energy storage capability, and a maximum SFO of 10. x ppm. It has a downlink amplifier and / or an uplink amplifier, meaning that downlink and / or uplink transmissions can utilize amplifiers. Uplink transmission is achieved by backscattering an externally provided carrier. Where x is greater than 0.

[0062] Device type 2b: Peak power consumption less than or equal to several hundred microwatts (≤ a few hundred μW), with energy storage capability, and a maximum SFO of 10. x ppm. It has a downlink amplifier and / or an uplink amplifier, meaning that downlink and / or uplink transmissions can utilize amplifiers. Uplink transmission is achieved through internally generated signals, also known as active transmission-based uplink transmission. Where x is greater than 0.

[0063] Thanks to its many advantages such as no need for conventional batteries, no maintenance, small size, low complexity and low cost, and long life cycle, environmental energy devices can be widely used in various industries, such as logistics, object recognition, smart warehousing, smart agriculture, energy and power, and industrial internet for vertical industries, as well as smart wearables, smart homes, smart control, environmental monitoring, and positioning.

[0064] Regarding encoding methods:

[0065] In the wireless communication system 100 shown in Figure 1 and / or the environmental energy system 200 shown in Figure 2, different forms of codes can be used to represent binary "1" and "0", that is, different pulse signals can be used to represent "0" and "1". Several encoding methods that can be used in this application are introduced here, as shown in Figure 6:

[0066] Inverse Non-Return to Zero (NRZ) encoding: a high level represents a binary "1", and a low level represents a binary "0". Figure 6 shows a schematic diagram of the level of the binary data "101100101001011" encoded using NRZ.

[0067] Manchester encoding, also known as split-phase encoding, represents binary values ​​by changes in level (rising or falling) over half a bit period. A negative transition over half a bit period represents a binary "1", and a positive transition over half a bit period represents a binary "0". Manchester encoding, when using carrier load modulation or backscatter modulation, is commonly used for data transmission from ambient power devices to network devices because it facilitates the detection of data transmission errors. This is because Manchester encoding does not allow a "no change" state within the bit length. When multiple ambient power devices simultaneously transmit data bits with different values, the received rising and falling edges cancel each other out, resulting in a continuous carrier signal throughout the entire bit length. Since this state is not allowed, network devices can use this error to determine the specific location of a collision. Figure 6 shows a schematic diagram of the level of the Manchester-encoded binary data "101100101001011".

[0068] Unipolar Return to Zero (URZ) encoding: A high level during the first half-bit cycle represents a binary "1", while a low level signal throughout the entire bit cycle represents a binary "1". Figure 6 shows a schematic diagram of the level of the binary data "101100101001011" encoded using URZ.

[0069] Differential Binary Phase (DBP) encoding: Any edge in half a bit cycle represents a binary "0", and no edge represents a binary "1". Furthermore, the levels are inverted at the beginning of each bit cycle. Therefore, the bit clock is easier for the receiver to reconstruct. Figure 6 shows a schematic diagram of the levels of the binary data "101100101001011" encoded using DBP.

[0070] Miller encoding: Any edge within half a bit cycle represents a binary "1", while a constant level in the next bit cycle represents a binary "0". The level alternation at the beginning of a bit cycle makes it relatively easy for the receiver to reconstruct the bit clock. Figure 6 shows a schematic diagram of the level of the Miller-encoded binary data "101100101001011".

[0071] Differential coding: Each binary "1" to be transmitted causes a change in signal level, while for a binary "0", the signal level remains unchanged.

[0072] Figure 7 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by an environmental energy device and an access device, and includes at least some of the following steps:

[0073] Step 710: The access device sends a trigger signaling or an inquiry signaling.

[0074] In some embodiments, triggering signaling is sent via multicast or broadcast, and querying signaling is sent via multicast or broadcast.

[0075] In some embodiments, the access device includes a network device. The network device may be network device 110 as shown in FIG1, or network device 210 as shown in FIG2.

[0076] In some embodiments, the access device includes an intermediate node that transmits data and / or signaling between the network device and the environmental energy device. The intermediate node may be at least one of the following: a relay, an integrated access backhaul (IAB) node, a UE, a repeater, etc.

[0077] Step 720: In response to a trigger signaling or query signaling, the environmental energy device sends a first identifier.

[0078] In some embodiments, the first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1.

[0079] In some embodiments, the N-bit information randomly generated by the environmental energy device has at least one of the following functions: identifying the environmental energy device, determining the time domain location of the second identifier, and determining the frequency domain location of the second identifier.

[0080] Step 730: In response to the first identifier, the access device sends an acknowledgment message.

[0081] In some embodiments, the confirmation information is used to indicate confirmation of the first identifier, and the confirmation information includes ACK (Acknowledgement).

[0082] In some embodiments, the confirmation information is used to indicate a negative acknowledgment of the first identifier, and the confirmation information includes NACK (Negative Acknowledgement).

[0083] Step 740: In response to the confirmation message, the environmental energy device sends a second identifier.

[0084] In some embodiments, the second identifier is used to indicate device identification information for the environmental energy device.

[0085] In summary, the method provided in this application embodiment enables the access of the environmental energy device by having the environmental energy device send a first identifier and a second identifier respectively. Furthermore, it supports the access device first identifying the environmental energy device using the first identifier, determining the time-frequency domain location of the second identifier, and then receiving the corresponding second identifier of the environmental energy device at the determined time-frequency domain location, thus ensuring the reliability of the access process.

[0086] Figure 8 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by an environmental energy device and includes at least some of the following steps:

[0087] Step 820: Send a first signal, the first signal including a first identifier and / or a second identifier; wherein, the first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identifier information of the environmental energy device.

[0088] In some embodiments, the N-bit information randomly generated / pseudo-randomly generated by the environmental energy device has at least one of the following functions: identifying the environmental energy device, determining the time domain position of the first signal, and determining the frequency domain position of the first signal.

[0089] In some embodiments, the N-bit information randomly generated / pseudo-randomly generated by different environmental energy devices is independent. Because each environmental energy device independently generates N-bit information, the N-bit information generated by different environmental energy devices may be different or the same. If the N-bit information randomly generated by different environmental energy devices is different, then the first identifiers sent by different environmental energy devices will also be different, thereby achieving the function of identifying environmental energy devices, determining the time-domain position of the first signal, and determining the frequency-domain position of the first signal through N-bit information. However, it is possible that two or more different environmental energy devices generate the same N-bit information. In this case, the first identifiers sent by each environmental energy device will conflict / collide, which may also cause conflicts in the time-frequency resources used by the first signals corresponding to different environmental energy devices, making it impossible to achieve the function of identifying environmental energy devices, determining the time-domain position of the first signal, and determining the frequency-domain position of the first signal through N-bit information.

[0090] Here, "different N bits of information" means that the values ​​of the N bits are different, thus representing different information. N-bit information can be considered to include N-bit random numbers or N-bit pseudo-random numbers.

[0091] In some embodiments, the function of N-bit information in identifying environmental energy devices can be considered as a temporary identification function. For example, the access device identifies an environmental energy device on a certain time-frequency resource based on the value of the N-bit information.

[0092] In some embodiments, the device identification information of the environmental energy device includes Protocol Control (PC) information and / or Electronic Product Code (EPC). Optionally, the PC is an identification segment used to determine the length of the EPC.

[0093] In some embodiments, the environmental energy device sends a first signal in response to a second signal.

[0094] In some embodiments, the second signal is used to trigger the environmental energy device to send the first signal; or, the second signal is used to request the environmental energy device to send the first signal; or, the second signal is used to instruct the environmental energy device to send the first signal. Triggering the environmental energy device to send the first signal can also be understood as triggering the environmental energy device to send a first identifier and / or a second identifier. Requesting the environmental energy device to send the first signal can also be understood as requesting the environmental energy device to send a first identifier and / or a second identifier. Instructing the environmental energy device to send the first signal can also be understood as instructing the environmental energy device to send a first identifier and / or a second identifier.

[0095] In some embodiments, the second signal includes a trigger signaling or an interrogation signaling. The trigger signaling is used to trigger the environmental energy device to send a first identifier and / or a second identifier, and the interrogation signaling is used to interrogate the environmental energy device for its first identifier and / or second identifier.

[0096] In some embodiments, the environmental energy system may also be referred to as at least one of the following: environmental energy Internet of Things system, passive Internet of Things system, zero power system, low power system, and ultra-low power system.

[0097] In some embodiments, an ambient energy device may also be referred to as at least one of the following: an ambient energy IoT device, a passive IoT device, a zero-power device, a low-power device, an ultra-low-power device, or a device equipped with a wake-up radio (WUR).

[0098] In some embodiments, the energy used for communication by the environmental energy device comes from the environmental energy collected by the device. Environmental energy includes at least one of the following: radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, kinetic energy, etc. If the environmental energy collected by the device is radio frequency energy, the signal used to provide that radio frequency energy can be referred to as the power supply signal.

[0099] In some embodiments, radio frequency (RF) power is harvested based on ambient radio frequency (RF) signals; that is, the power supply signal is an ambient RF signal. Ambient RF signals include, for example, RF signals from other communication systems, broadcast signals, etc. In this case, the energy harvesting method of the ambient energy device can be considered passive. Here, "other communication systems" refers to communication systems that do not include the ambient energy device. In this case, the power supply signal can employ physical layer technologies supported by other communication systems; for example, the power supply signal can be an OFDM signal.

[0100] In some embodiments, radio frequency (RF) power harvesting is based on in-band radio frequency (RF) signals, meaning the power supply signal is an in-band RF signal. In-band RF signals may include signals transmitted using time-frequency resources within a communication system (such as NR, LTE, ambient energy systems, etc.). Such a power supply signal helps ensure energy harvesting efficiency and reliability. In this case, the power supply signal can employ physical layer technologies supported by the ambient energy system; for example, the power supply signal may be a simple waveform obtained through simple modulation. Simple modulation methods may include at least one of the following: Amplitude Shift Keying (ASK) modulation, On-Off Keying (OOK) modulation, Frequency Shift Keying (FSK) modulation, Phase Shift Keying (PSK) modulation, and Binary Phase Shift Keying (BPSK).

[0101] The aforementioned physical layer technologies include at least one of the following aspects: modulation method, coding method, waveform, bandwidth, transmission rate, communication method (such as simplex communication, half-duplex communication, full-duplex communication, etc.), information transmission method (such as serial transmission, parallel transmission), antenna technology, resource mapping method (such as centralized resource allocation method, distributed resource allocation method, etc.).

[0102] In some embodiments, the ambient energy device supports backscatter and / or active transmission communication methods. If the ambient energy device uses backscatter communication, an external carrier signal is required.

[0103] In some embodiments, the number of environmental energy devices is one or more.

[0104] In summary, the method provided in this application supports environmental energy devices in transmitting a first signal including a first identifier and / or a second identifier to enable access for the environmental energy devices. Since the first and second identifiers can be simultaneously carried in the first signal, the access process for environmental energy devices is simplified, the number of transmissions by the environmental energy devices is reduced, which helps to improve access efficiency, reduce access latency, lower the probability of resource conflicts, and improve spectrum utilization efficiency.

[0105] Figure 9 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by the access device and includes at least some of the following steps:

[0106] Step 920: Receive a first signal, the first signal including a first identifier and / or a second identifier; wherein, the first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identifier information of the environmental energy device.

[0107] In some embodiments, the N-bit information randomly generated by the environmental energy device has at least one of the following functions: identifying the environmental energy device, determining the time domain position of the first signal, and determining the frequency domain position of the first signal.

[0108] In some embodiments, the N-bit information randomly generated / pseudo-randomly generated by different environmental energy devices is independent. Because each environmental energy device independently generates N-bit information, the N-bit information generated by different environmental energy devices may be different or the same. If the N-bit information randomly generated by different environmental energy devices is different, then the first identifiers sent by different environmental energy devices will also be different, thereby achieving the function of identifying environmental energy devices, determining the time-domain position of the first signal, and determining the frequency-domain position of the first signal through N-bit information. However, it is possible that two or more different environmental energy devices generate the same N-bit information. In this case, the first identifiers sent by each environmental energy device will conflict / collide, which may also cause conflicts in the time-frequency resources used by the first signals corresponding to different environmental energy devices, making it impossible to achieve the function of identifying environmental energy devices, determining the time-domain position of the first signal, and determining the frequency-domain position of the first signal through N-bit information.

[0109] Here, "different N bits of information" means that the values ​​of the N bits are different, thus representing different information. N-bit information can be considered to include N-bit random numbers or N-bit pseudo-random numbers.

[0110] In some embodiments, the device identification information of the environmental energy device includes PC information and / or EPC. Optionally, PC is an identification segment used to determine the length of EPC.

[0111] In some embodiments, the first signal is sent by the environmental energy device in response to the second signal.

[0112] In some embodiments, the second signal is used to trigger the environmental energy device to send the first signal; or, the second signal is used to request the environmental energy device to send the first signal; or, the second signal is used to instruct the environmental energy device to send the first signal. Triggering the environmental energy device to send the first signal can also be understood as triggering the environmental energy device to send a first identifier and / or a second identifier. Requesting the environmental energy device to send the first signal can also be understood as requesting the environmental energy device to send a first identifier and / or a second identifier. Instructing the environmental energy device to send the first signal can also be understood as instructing the environmental energy device to send a first identifier and / or a second identifier.

[0113] In some embodiments, the second signal includes a trigger signaling or an interrogation signaling. The trigger signaling is used to trigger the environmental energy device to send a first identifier and / or a second identifier, and the interrogation signaling is used to interrogate the environmental energy device for its first identifier and / or second identifier.

[0114] In some embodiments, the environmental energy system may also be referred to as at least one of the following: environmental energy Internet of Things system, passive Internet of Things system, zero power system, low power system, and ultra-low power system.

[0115] In some embodiments, an environmental energy device may also be referred to as at least one of the following: an environmental energy IoT device, a passive IoT device, a zero-power device, a low-power device, an ultra-low-power device, or a device equipped with WUR.

[0116] In some embodiments, the access device includes a network device. The network device may be network device 110 as shown in FIG1, or network device 210 as shown in FIG2.

[0117] In some embodiments, the access device includes an intermediate node that transmits data and / or signaling between the network device and the environmental energy device. The intermediate node may be, for example, at least one of the following: a repeater, an IAB node, a UE, a relay device, etc.

[0118] In summary, the method provided in this application supports the access of environmental energy devices by transmitting a first signal including a first identifier and / or a second identifier. Since the first and second identifiers can be simultaneously carried in the first signal, the access process for environmental energy devices is simplified, the number of transmissions by the environmental energy devices is reduced, which helps to improve access efficiency, reduce access latency, lower the probability of resource conflicts, and improve spectrum utilization efficiency.

[0119] Figure 10 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by an environmental energy device and an access device, and includes at least some of the following steps:

[0120] Step 1020: The access device sends a second signal.

[0121] In some embodiments, the second signal can be transmitted in millimeter-wave bands (such as 45 GHz, 60 GHz, etc., which fall within the 30–300 GHz range) or in non-millimeter-wave bands. Non-millimeter-wave bands include low-frequency bands (such as 2.4 GHz, 5 GHz, 6 GHz, etc., which fall within the 1–7.25 GHz range), or may include new bands that may be planned in the future that are different from millimeter-wave bands.

[0122] In some embodiments, the waveform of the second signal can be a sine wave, a square wave, a triangular wave, a pulse, or a rectangular wave, etc. The waveform of the second signal can be continuous or discontinuous, that is, the second signal is allowed to be interrupted within a certain time domain range.

[0123] Other relevant information regarding the second signal is provided in step 920 and will not be repeated here.

[0124] Step 1040: The environmental energy device sends a first signal, the first signal including a first identifier and / or a second identifier.

[0125] The first identifier is used to indicate the N bits of information randomly generated by the environmental energy device. For example, with N=16, the first identifier is RN16, where RN16 represents a 16-bit random or pseudo-random number. For example, with N=32, the first identifier is RN32, where RN32 represents a 32-bit random or pseudo-random number. N can also be other positive integers; this application does not limit the value of N. Of course, RN16 and RN32 are merely examples of the first identifier and not limitations. The first identifier can also be implemented in other ways, as long as it meets the requirement that the first identifier can indicate the N bits of information randomly generated by the environmental energy device.

[0126] The equipment identification information for environmental energy devices includes PC information and / or EPC. Optionally, PC is an identification segment used to determine the length of EPC.

[0127] Figure 11(a) shows a schematic diagram of the structure of a first signal provided in an exemplary embodiment of this application, including a first identifier, a PC, and an EPC. Optionally, the first signal may also include other parts such as a header.

[0128] Figure 11(b) shows a schematic diagram of the structure of a first signal provided in an exemplary embodiment of this application, including an EPC. Optionally, the first signal may also include other parts such as a header.

[0129] Figure 11(c) shows a schematic diagram of the structure of a first signal provided in an exemplary embodiment of this application, including a PC and an EPC. Optionally, the first signal may also include other parts such as a header.

[0130] Figure 11(d) shows a schematic diagram of the structure of a first signal provided in an exemplary embodiment of this application, including a first identifier and an EPC. Optionally, the first signal may also include other parts such as a header.

[0131] Of course, the first signal can also adopt other structures; Figure 11 is merely an example and not a limitation. For instance, the structure of the first signal can be based on the structure shown in Figure 11, with information added or removed. For example, the first signal may include a first identifier and a PC, or it may include a first identifier and an EPC. The order of the information shown in Figure 11 can also be changed, for example, EPC before PC, EPC before the first identifier, PC before the first identifier, and so on.

[0132] In some embodiments, after receiving the second signal, the environmental energy device reads the time-frequency resource indication information of the first signal. Optionally, this indication information is indicated by the second signal. Optionally, this indication information is indicated by other signaling besides the second signal. Optionally, this indication information is pre-configured.

[0133] In some embodiments, the environmental energy device transmits a first signal using specific time-frequency resources. These specific time-frequency resources may be agreed upon by a communication protocol, indicated by an access device, determined autonomously by the environmental energy device, or pre-configured.

[0134] In this application, pre-configuration can be achieved by pre-storing corresponding codes, tables, or other methods that can indicate relevant information in the environmental energy device, or by pre-configuration signaling, such as pre-configuration through Radio Resource Control (RRC) signaling, pre-configuration through Configured Grant (CG), or pre-configuration through Semi-Persistent Scheduling (SPS). This application does not limit the specific implementation method of pre-configuration, and will not elaborate further below.

[0135] In some embodiments, the first signal can be transmitted in millimeter-wave bands (such as 45 GHz, 60 GHz, etc., which fall within the 30–300 GHz range) or in non-millimeter-wave bands. Non-millimeter-wave bands include low-frequency bands (such as 2.4 GHz, 5 GHz, 6 GHz, etc., which fall within the 1–7.25 GHz range), or may include new bands that may be planned in the future that are different from millimeter-wave bands.

[0136] In some embodiments, the waveform of the first signal can be a sine wave, a square wave, a triangular wave, a pulse, or a rectangular wave, etc. The waveform of the first signal can be continuous or discontinuous, that is, the first signal is allowed to be interrupted within a certain time domain range.

[0137] For further details regarding the first signal and environmental energy equipment, please refer to step 820; these details will not be repeated here.

[0138] Step 1060: The access device sends an acknowledgment message in response to the first signal.

[0139] In some embodiments, confirmation information is sent on the frequency domain resources occupied by the first signal.

[0140] In some embodiments, the confirmation information is associated with a first identifier and / or a second identifier.

[0141] In some embodiments, the confirmation information is associated with the first identifier in at least one of the following aspects: the frequency domain position of the confirmation information is associated with the frequency domain position of the first identifier, the time domain position of the confirmation information is associated with the time domain position of the first identifier, and the value transmitted by the confirmation information is associated with the value of the first identifier.

[0142] Optionally, the frequency domain location of the confirmation information is associated with the frequency domain location of the first identifier, including at least one of the following: the frequency domain location of the confirmation information is the same as the frequency domain location of the first identifier; a first frequency domain interval exists between the frequency domain location of the confirmation information and the frequency domain location of the first identifier; the frequency domain resources occupied by the confirmation information belong to the frequency domain resources occupied by the first identifier; and the frequency domain resources occupied by the first identifier belong to the frequency domain resources occupied by the confirmation information. The first frequency domain interval is agreed upon by the communication protocol, configured by the access device, or pre-configured.

[0143] Optionally, the temporal location of the confirmation information is associated with the temporal location of the first identifier, including at least one of the following: the temporal location of the confirmation information is the same as the temporal location of the first identifier; a first temporal interval exists between the temporal location of the confirmation information and the temporal location of the first identifier; the temporal resources occupied by the confirmation information belong to the temporal resources occupied by the first identifier; and the temporal resources occupied by the first identifier belong to the temporal resources occupied by the confirmation information. The first temporal interval is defined by the communication protocol, configured by the access device, or pre-configured.

[0144] In some embodiments, the confirmation information is associated with the second identifier in at least one of the following aspects: the frequency domain position of the confirmation information is associated with the frequency domain position of the second identifier, the time domain position of the confirmation information is associated with the time domain position of the second identifier, and the value transmitted by the confirmation information is associated with the value of the second identifier.

[0145] Optionally, the frequency domain location of the confirmation information is associated with the frequency domain location of the second identifier, including at least one of the following: the frequency domain location of the confirmation information is the same as the frequency domain location of the second identifier; a second frequency domain interval exists between the frequency domain locations of the confirmation information and the second identifier; the frequency domain resources occupied by the confirmation information belong to the frequency domain resources occupied by the second identifier; and the frequency domain resources occupied by the second identifier belong to the frequency domain resources occupied by the confirmation information. The second frequency domain interval is determined by the communication protocol, configured by the access device, or pre-configured.

[0146] Optionally, the temporal location of the confirmation information is associated with the temporal location of the second identifier, including at least one of the following: the temporal location of the confirmation information is the same as the temporal location of the second identifier; a second temporal interval exists between the temporal locations of the confirmation information and the second identifier; the temporal resources occupied by the confirmation information belong to the temporal resources occupied by the second identifier; and the temporal resources occupied by the second identifier belong to the temporal resources occupied by the confirmation information. The second temporal interval is determined by the communication protocol, configured by the access device, or pre-configured.

[0147] In some embodiments, a first identifier is associated with a second identifier. For example, the second identifier can be obtained from the result of a mathematical operation on the first identifier, or the first identifier can be obtained from the result of a mathematical operation on the second identifier. For example, the time-domain position of the first identifier is associated with the time-domain position of the second identifier; for example, a third time-domain interval exists between the time-domain positions of the first and second identifiers, which is agreed upon by a communication protocol, configured by the access device, or pre-configured. For example, the frequency-domain position of the first identifier is associated with the frequency-domain position of the second identifier; for example, a third frequency-domain interval exists between the frequency-domain positions of the first and second identifiers, which is agreed upon by a communication protocol, configured by the access device, or pre-configured.

[0148] In some embodiments, the confirmation information is used to indicate confirmation of the first identifier and / or the second identifier, and the confirmation information includes ACK.

[0149] For example, after receiving the first signal, the access device decodes the first signal. If the access device determines that the decoding of the first signal is successful, that is, it successfully obtains the first identifier and / or the second identifier, it sends an ACK to the environmental energy device.

[0150] In some embodiments, the confirmation information is used to indicate a negative confirmation of the first identifier and / or the second identifier, and the confirmation information includes NACK.

[0151] For example, after receiving the first signal, the access device decodes the first signal. If the access device determines that decoding the first signal has failed, that is, it has failed to successfully obtain the first identifier and / or the second identifier, it sends a NACK to the environmental energy device.

[0152] In some embodiments, if the access device detects or configures multiple first signals using FDM / FDMA, multiple acknowledgment messages for the multiple first signals can be sent together. That is, the access device uses FDM / FDMA / cascading technology to send acknowledgment messages. In other words, if the environmental energy device sending the first signal to the access device supports FDM / FDMA technology, the access device can use FDM / FDMA / cascading technology to send back acknowledgment messages.

[0153] For example, as shown in Figure 12, the acknowledgment information sent by the access device includes M acknowledgment information fields, and optionally, a header. The M acknowledgment information fields are sent in a frequency division multiplexing (FDM) manner or in a cascaded manner. Optionally, each of the M acknowledgment information fields includes either ACK or NACK, used to indicate acknowledgment information for a first signal occupying the corresponding frequency domain resource. Each acknowledgment information is sent on the frequency domain resource occupied by its corresponding first signal. For example, the first acknowledgment information field carries acknowledgment information 1, used to respond to the first signal 1 sent by device 1; the frequency domain resource occupied by acknowledgment information 1 is the same as the frequency domain resource 1 occupied by the first signal 1. Similarly, the Mth acknowledgment information field carries acknowledgment information M, used to respond to the first signal M sent by device M; the frequency domain resource occupied by acknowledgment information M is the same as the frequency domain resource 1 occupied by the first signal M.

[0154] Optionally, the acknowledgment information sent by the access device may indicate that the information is acknowledgment information through a bit sequence or encoding information. For example, the acknowledgment information may be generated using a first bit sequence, which indicates that the information is acknowledgment information; or the acknowledgment information may be generated using first encoding information, which indicates that the information is acknowledgment information.

[0155] It should be noted that steps 1020, 1040, and 1060 can be executed individually or in combination. For example, executing step 1020 alone implements a device access method for an environmental energy system on the access device side. Alternatively, executing step 1040 alone implements a device access method for an environmental energy system on the environmental energy device side. Another example is combining steps 1020 and 1060 to implement a device access method for an environmental energy system on the access device side. Yet another example is combining steps 1020 and 1040 to implement a device access method for an environmental energy system. And yet another example is combining steps 1040 and 1060 to implement a device access method for an environmental energy system. Finally, a combination of steps 1020, 1040, and 1060 can be used to implement a device access method for an environmental energy system.

[0156] In summary, the method provided in this application supports the access of environmental energy devices by transmitting a first signal including a first identifier and / or a second identifier. Since the first and second identifiers can be simultaneously carried in the first signal, the access process for environmental energy devices is simplified, the number of transmissions by the environmental energy devices is reduced, which helps to improve access efficiency, reduce access latency, lower the probability of resource conflicts, and improve spectrum utilization efficiency.

[0157] As mentioned earlier, thanks to their advantages such as ultra-low power consumption, extremely small size, and extremely low cost, ambient energy devices can be widely used in various fields. In some application scenarios, a large number of ambient energy devices may be required to transmit and receive signals within a short period. This is especially true for uplink services of ambient energy devices, which are characterized by small data volumes and a large number of users. Using Time Division Multiplexing (TDM) or Time Division Multiple Access (TDMA) technologies would introduce significant latency, making it difficult to meet the reporting needs of a large number of ambient energy devices within a short timeframe. Therefore, for uplink and downlink transmission of ambient energy devices, Frequency Division Multiplexing (FDM) or Frequency Division Multiple Access (FDMA) technologies can be considered. Therefore, the ambient energy device in this application can also transmit a first signal based on FDM or FDMA technologies. In this way, multiple ambient energy devices can transmit their first signals to the access device within overlapping time domain resources or even at the same time, utilizing different frequency domain resources.

[0158] How to determine the frequency domain resources occupied by the first signal is also worth further discussion.

[0159] In some embodiments, the frequency domain resources occupied by the first signal are agreed upon by the communication protocol, configured by the access device, pre-configured, or determined by the environmental energy device.

[0160] If the frequency domain resources occupied by the first signal are configured by the access device, they can be configured through the second signal or through other signals besides the second signal.

[0161] If the frequency domain resources occupied by the first signal are determined by the environmental energy device, they can be determined entirely by the environmental energy device itself, or by the environmental energy device within certain frequency domain resources agreed upon in the communication protocol, or within certain pre-configured frequency domain resources, or within certain frequency domain resources configured by the access device, or based on the rules agreed upon in the communication protocol, or based on pre-configured rules, or based on the rules configured by the access device.

[0162] Next, two schemes for determining the frequency domain resources occupied by the first signal are further shown, with reference to the embodiments shown in Figures 13 and 16 respectively.

[0163] Figure 13 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by an environmental energy device and includes at least some of the following steps:

[0164] Step 1310: Receive the second signal.

[0165] The relevant content of the second signal is described in steps 920 and 1020, and will not be repeated here.

[0166] Step 1320: Send a first signal, the first signal including a first identifier and / or a second identifier, the frequency domain resources occupied by the first signal being determined based on the first information.

[0167] In some embodiments, the first information includes at least one of the following: a first identifier; a second identifier; the device type of the environmental energy device; the identification information of the access device; a first frequency domain resource, which supports the use of the environmental energy IoT system; a second frequency domain resource, which supports the use of the device type of the environmental energy device; the cumulative energy value of the power supply signal, which refers to the signal that provides energy to the environmental energy device; the received strength value of the power supply signal; the number of bits to be transmitted by the environmental energy device; the transmission block size (TBS) to be transmitted by the environmental energy device; the coding rate (CR); and the data rate.

[0168] 1) The frequency domain resources occupied by the first signal are determined at least based on the case of the first identifier:

[0169] In some embodiments, the frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to all bits in the first identifier.

[0170] For example, the ambient energy device randomly generates an N-bit random or pseudo-random number. Based on the decimal value corresponding to this N-bit random or pseudo-random number, the ambient energy device determines the frequency domain resources occupied by the first signal. For instance, if N is 16, the ambient energy device generates RN16, and the frequency domain resources occupied by the first signal are determined based on the decimal value corresponding to RN16.

[0171] For example, the identifier or index of the frequency domain resources occupied by the first signal is determined based on the decimal values ​​corresponding to all bits in the first identifier. For instance, the decimal value is equal to the identifier or index of the frequency domain resources occupied by the first signal. Alternatively, the identifier or index of the frequency domain resources occupied by the first signal may be the result of a mathematical operation on the decimal value. The mathematical operations may include one or more of the following: addition, subtraction, multiplication, division, modulo, variance, square, cube, etc., which will not be listed here.

[0172] In some embodiments, the frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to a portion of the bits in the first identifier.

[0173] For example, an environmental energy device randomly generates an N-bit random or pseudo-random number. Based on the decimal values ​​corresponding to a subset of the bits in this N-bit random or pseudo-random number, the device determines the frequency domain resources occupied by the first signal. These subset of bits can be the leftmost A bits, the rightmost A bits, or any A bits from the N bits, where 1 ≤ A ≤ N. The leftmost A bits can be understood as the most significant A bits, or the high-order A bits. The rightmost A bits can be understood as the least significant A bits, or the low-order A bits. For instance, if the environmental energy device generates RN16, the frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to the leftmost A bits of RN16, or vice versa.

[0174] For example, the identifier or index of the frequency domain resource occupied by the first signal is determined based on the decimal value corresponding to a portion of the bits in the first identifier. For instance, this decimal value is equal to the identifier or index of the frequency domain resource occupied by the first signal. Or, for another example, the identifier or index of the frequency domain resource occupied by the first signal is the result of a mathematical operation on this decimal value.

[0175] In some embodiments, a correspondence exists between the first identifier and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0176] In some embodiments, environmental energy devices with different first identifiers have different frequency domain resources occupied by the determined first signals, thereby avoiding conflicts and interference between different environmental energy devices.

[0177] 2) The frequency domain resources occupied by the first signal are determined at least based on the case of the second identifier:

[0178] The second identifier includes PC and / or EPC.

[0179] In some embodiments, the frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to all bits in the second identifier.

[0180] For example, the second identifier includes PC, and the environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to all bits of PC. Or, for example, the second identifier includes EPC, and the environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to all bits of EPC. Or, for example, the second identifier includes both PC and EPC, and the environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to all bits of PC and EPC.

[0181] In some embodiments, the frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to a portion of the bits in the second identifier.

[0182] For example, the second identifier includes PC (a total of B bits). The environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to a portion of the bits in PC. These portions can be either the leftmost C bits or the rightmost C bits, where 1 ≤ C ≤ B. Alternatively, the second identifier includes EPC (a total of D bits). The environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to a portion of the bits in EPC. These portions can be either the leftmost E bits or the rightmost E bits, where 1 ≤ E ≤ D. Another example is a second identifier including both PC and EPC. The environmental energy device determines the frequency domain resources occupied by the first signal based on the decimal values ​​corresponding to a portion of the bits in PC and a portion of the bits in EPC.

[0183] In some embodiments, the identifier or index of the frequency domain resources occupied by the first signal is determined based on the decimal values ​​corresponding to all or some of the bits in the second identifier. For example, the decimal values ​​corresponding to all or some of the bits are equal to the index of the frequency domain resources occupied by the first signal. Alternatively, the index of the frequency domain resources occupied by the first signal may be the result of a mathematical operation on the decimal values ​​corresponding to all or some of the bits.

[0184] In some embodiments, a correspondence exists between the second identifier and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0185] In some embodiments, environmental energy devices with different second identifiers have different frequency domain resources occupied by the determined first signal, thereby avoiding conflicts and interference between different environmental energy devices.

[0186] 3) The frequency domain resources occupied by the first signal are determined at least based on the equipment type of the environmental energy device:

[0187] The types of environmental energy devices can be defined by communication protocols. For example, referring to the previous text, the device types of environmental energy devices can include device type 1, device type 2a, device type 2b, etc. Of course, the device types of environmental energy devices can also be classified according to other rules or meanings. For example, they can be classified according to whether a battery is required, such as active devices, semi-passive devices, and passive devices; or they can be classified as devices supporting active emission, devices supporting backscattering, or devices supporting both active emission and backscattering; or they can be classified according to peak power consumption levels; or they can be classified according to whether they have energy storage capabilities; or they can be classified according to whether they have amplifiers; and so on. This application does not limit the device types of environmental energy devices; however, for ease of explanation, the following description will use device type 1, device type 2a, and device type 2b as examples.

[0188] In some embodiments, there is a correspondence between the device type of the environmental energy device and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0189] In some embodiments, the frequency domain resources occupied by the first signal of different types of environmental energy devices are different, thereby avoiding conflicts and interference between different types of environmental energy devices.

[0190] 4) The frequency domain resources occupied by the first signal are determined at least based on the identification information of the access device:

[0191] In some embodiments, the identification information of the access device includes at least one of the following: Network Identity (Network ID); Physical ID; Hardware ID; Cell ID.

[0192] In some embodiments, the second signal carries the identification information of the access device, or the identification information of the access device is carried in other signals besides the second signal. For example, the access device sends an indication message carrying the identification information of the access device to the environmental energy device. When the environmental energy device determines the frequency domain resources occupied by the first signal, it can do so based on the identification information of the access device. This allows the environmental energy device to select different frequency domain resources when sending the first signal to different access devices, thus avoiding conflicts and interference between different first signals at the receiving end.

[0193] 5) The frequency domain resources occupied by the first signal are determined at least based on the first frequency domain resources:

[0194] In some embodiments, the first frequency domain resources are only supported for use by the environmental energy system, that is, the first frequency domain resources are dedicated to the use of the environmental energy system.

[0195] In some embodiments, the first frequency domain resource is not a frequency domain resource exclusively for use by the ambient energy system; that is, the first frequency domain resource supports use by the ambient energy system and communication systems other than the ambient energy system. For example, the first frequency domain resource supports use by the ambient energy system, NR system, and LTE system; or, the first frequency domain resource supports use by the ambient energy system and NR system; or, the first frequency domain resource supports use by the ambient energy system and LTE system.

[0196] In some embodiments, the environmental energy system uses independent frequency domain resources; that is, the first frequency domain resources are independent of the frequency domain resources of the NR / LTE system.

[0197] In some embodiments, the frequency domain resources used by the ambient energy system are associated with the frequency domain resources of the NR / LTE system. For example, the first frequency domain resource is located within the guard band of the third frequency domain resource, which supports the use of the NR system and / or the LTE system; that is, the ambient energy system uses the guard band of the frequency band in which the NR / LTE system operates. Alternatively, the ambient energy system may use the same frequency domain resources as the NR / LTE system; that is, the first frequency domain resource supports the use of both the ambient energy system and the NR / LTE system.

[0198] In some embodiments, the first frequency domain resources are agreed upon by the communication protocol, or are pre-configured, or are configured by the access device.

[0199] In some embodiments, the first frequency domain resource includes one or more frequency domain units. These frequency domain units may include at least one of the following: bandwidth, carrier, physical resource block (PRB), bandwidth part (BWP), subband, subchannel, subcarrier, or units based on other frequency domain units.

[0200] In some embodiments, the first frequency domain resource includes one or more frequency domain ranges. The frequency domain range can be determined based on a start frequency domain position and an end frequency domain position, or based on a start frequency domain position and the number of frequency domain elements, or based on an end frequency domain position and the number of frequency domain elements.

[0201] In some embodiments, the frequency domain resources occupied by the first signal are located within the first frequency domain resources.

[0202] In some embodiments, the frequency domain resources occupied by the first signal include part or all of the frequency domain resources of the first frequency domain resources.

[0203] 6) The frequency domain resources occupied by the first signal are determined at least based on the second frequency domain resources:

[0204] In some embodiments, different types of ambient energy devices correspond to different available frequency domain resources; that is, different types of ambient energy devices correspond to different second frequency domain resources. The frequency domain resources occupied by the first signal can be determined based on the second frequency domain resources corresponding to the device type of the ambient energy device.

[0205] In some embodiments, the second frequency domain resources are agreed upon by the communication protocol, or are pre-configured, or are configured by the access device.

[0206] In some embodiments, the second frequency domain resource includes one or more frequency domain units. These frequency domain units may include, for example, at least one of the following: bandwidth, carrier, PRB, bandwidth part (BWP), subband, subchannel, subcarrier, or units based on other frequency domain units.

[0207] In some embodiments, the second frequency domain resource includes one or more frequency domain ranges. The frequency domain range can be determined based on a start frequency domain position and an end frequency domain position, or based on a start frequency domain position and the number of frequency domain elements, or based on an end frequency domain position and the number of frequency domain elements.

[0208] In some embodiments, the frequency domain resources occupied by the first signal are located within the second frequency domain resources.

[0209] In some embodiments, the frequency domain resources occupied by the first signal include part or all of the frequency domain resources of the second frequency domain resources.

[0210] In some embodiments, the second frequency domain resource is associated with the first frequency domain resource. For example, the second frequency domain resource is located within the first frequency domain resource, or the second frequency domain resource includes some or all of the frequency domain resources of the first frequency domain resource.

[0211] Figure 14 illustrates a schematic diagram of a second frequency domain resource provided in an exemplary embodiment of this application. Taking the environmental energy device as an example, categorized into device type 1, device type 2a, and device type 2b, different device types correspond to different second frequency domain resources. Optionally, a guard interval is provided between different second frequency domain resources. Optionally, the second frequency domain resources corresponding to different device types are symmetrically arranged. For example, assuming the environmental energy device is device type 2a, when determining the frequency domain resource occupied by the first signal, the environmental energy device can use the second frequency domain resources corresponding to device type 2a in pairs, or it can use only one second frequency domain resource on one side. Figure 14 illustrates an example where the second frequency domain resource belongs to the first frequency domain resource.

[0212] 7) The frequency domain resources occupied by the first signal are determined at least based on the cumulative energy value of the power supply signal:

[0213] In some embodiments, the energy accumulation value of the power supply signal includes a first energy accumulation value and / or a second energy accumulation value. The first energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a time unit, and the second energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a first time range.

[0214] Optionally, the first time range includes one or more time-domain units. These time-domain units include at least one of the following: frame, subframe, slot, mini-slot, sub-slot, symbol, symbol group, or unit based on other time-domain units.

[0215] Optionally, the first time range includes one or more time domain ranges. The time domain range can be determined based on the starting time domain position and the ending time domain position, or based on the starting time domain position and the number of time domain units, or based on the ending time domain position and the number of time domain units.

[0216] In other words, the first energy accumulation value reflects the energy accumulation of the power supply signal per unit time, while the second energy accumulation value reflects the energy accumulation of the power supply signal over a period of time.

[0217] In some embodiments, there is a correspondence between the accumulated energy value of the power supply signal and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0218] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the accumulated energy value of the power supply signal meets a first threshold. The first threshold may be in joules or in percentage of energy storage capacity (the ratio of the accumulated energy value to the total energy value that the environmental energy device can store). Of course, the first threshold may also use other units or even be unitless, and this application does not limit it.

[0219] For example, the first threshold includes 0.1 Joule, 0.01 Joule, 0.001 Joule, 0.0001 Joule, etc. When the cumulative energy value of the power supply signal reaches 0.001 Joule, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #1. When the cumulative energy value of the power supply signal reaches 0.01 Joule, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #2. When the cumulative energy value of the power supply signal reaches 0.1 Joule, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #3.

[0220] For example, the first threshold includes 25%, 50%, 75%, 100%, etc. When the cumulative energy value of the power supply signal reaches 25%, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #1. When the cumulative energy value of the power supply signal reaches 50%, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #2. When the cumulative energy value of the power supply signal reaches 75%, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #3. When the cumulative energy value of the power supply signal reaches 100%, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #4.

[0221] The first threshold can be defined by the communication protocol, configured by the access device, pre-configured, or determined by the environmental energy device.

[0222] 8) The frequency domain resources occupied by the first signal are determined at least based on the received strength value of the power signal:

[0223] In some embodiments, there is a correspondence between the received strength value of the power supply signal and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0224] In some embodiments, the received strength value of the power supply signal is represented by received power or received signal strength indicator.

[0225] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the received strength value of the power supply signal meets a second threshold. The second threshold may be measured in decibels per milliwatt (dBm). Of course, the second threshold may also use other units or even be unitless, and this application does not limit this.

[0226] For example, the second threshold includes -20dBm, -40dBm, -60dBm, -80dBm, etc. When the cumulative energy value of the power supply signal reaches -20dBm, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #1. When the cumulative energy value of the power supply signal reaches -40dBm, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #2. When the cumulative energy value of the power supply signal reaches -60dBm, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #3. When the cumulative energy value of the power supply signal reaches -80dBm, the frequency domain resource occupied by the first signal is determined to be frequency domain resource #4.

[0227] The second threshold can be agreed upon by the communication protocol, configured by the access device, pre-configured, or determined by the environmental energy device.

[0228] 9) The frequency domain resources occupied by the first signal are determined at least based on the number of bits to be transmitted from the environmental energy device:

[0229] In some embodiments, there is a correspondence between the number of bits to be transmitted by the environmental energy device and the frequency domain resources occupied by the first signal. The environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0230] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the number of bits to be transmitted by the environmental energy device meets a third threshold. For example, the second threshold includes 8 bits, 16 bits, 32 bits, 64 bits, etc., and the frequency domain resources occupied by the first signal differ depending on the threshold. The third threshold may be agreed upon by the communication protocol, configured by the access device, pre-configured, or determined by the environmental energy device.

[0231] 10) The frequency domain resources occupied by the first signal are determined at least based on the TBS to be transmitted by the ambient energy device:

[0232] In some embodiments, there is a correspondence between the TBS to be transmitted by the environmental energy device and the frequency domain resources occupied by the first signal. The environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0233] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the TBS to be transmitted by the environmental energy device meets a fourth threshold. For example, the frequency domain resources occupied by the first signal differ depending on whether the TBS to be transmitted meets different thresholds. The fourth threshold may be agreed upon by a communication protocol, configured by the access device, pre-configured, or determined by the environmental energy device.

[0234] 11) The frequency domain resources occupied by the first signal are at least based on the case where the code rate is determined:

[0235] In some embodiments, a correspondence exists between the code rate and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by the communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0236] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the code rate meets a fifth threshold. For example, the frequency domain resources occupied by the first signal differ depending on the code rate. The fifth threshold may be agreed upon by the communication protocol, configured by the access device, pre-configured, or determined by an environmental energy device.

[0237] 12) The frequency domain resources occupied by the first signal are determined at least based on the data rate:

[0238] In some embodiments, a correspondence exists between the data rate and the frequency domain resources occupied by the first signal, and the environmental energy device can determine the frequency domain resources occupied by the first signal based on this correspondence. This correspondence can be agreed upon by a communication protocol, pre-configured, configured by the access device, or determined by the environmental energy device. Optionally, the correspondence can be described in the form of a formula, or in textual form, or in the form of a mapping table.

[0239] In some embodiments, the frequency domain resources occupied by the first signal are determined based on whether the data rate meets a sixth threshold. For example, the frequency domain resources occupied by the first signal differ depending on the data rate. The sixth threshold may be agreed upon by a communication protocol, configured by the access device, pre-configured, or determined by an environmental energy device.

[0240] It should be noted that the above-mentioned cases of determining the frequency domain resources occupied by the first signal based on the first information can be used individually or in any combination.

[0241] For example, the environmental energy device can determine the frequency domain resources occupied by the first signal based on a certain piece of information in the first information, that is, any one of the above 1) to 12) can be used alone. For example, the frequency domain resources occupied by the first signal can be determined solely based on the code rate, or solely based on the data rate, or solely based on the TBS to be transmitted, or solely based on the energy accumulation value of the power supply signal, or solely based on the second frequency domain resources, or solely based on the second identifier, etc., etc., which will not be listed here.

[0242] For example, an environmental energy device can determine the frequency domain resources occupied by the first signal based on some or all of the information in the first information. This application does not list all possibilities, but it should be understood that any two or more of the above 1) to 12) can be used in combination.

[0243] For example, the frequency domain resources occupied by the first signal are determined based on the first frequency domain resources, the first identifier, the second identifier, the identification information of the access device, and the device type of the environmental energy device. That is, within the first frequency domain resources, the environmental energy device further determines the frequency domain resources occupied by the first signal based on the first identifier, the second identifier, the identification information of the access device, and the device type of the environmental energy device.

[0244] For example, the frequency domain resources occupied by the first signal are determined based on the first identifier and the identification information of the access device. Assuming the first identifier is RN16, the environmental energy device determines the frequency domain resources occupied by the first signal based on some or all of the bits in RN16 and some or all of the bits in the identification information of the access device.

[0245] For example, the frequency domain resources occupied by the first signal are determined based on the second identifier and the identification information of the access device. Assuming the second identifier includes EPC, the environmental energy device determines the frequency domain resources occupied by the first signal based on some or all of the bits in the EPC and some or all of the bits in the identification information of the access device.

[0246] For example, the frequency domain resources occupied by the first signal are determined based on the second frequency domain resources, the first identifier, the second identifier, and the identification information of the access device. That is, the environmental energy device determines the second frequency domain resources based on its own device type, and within the second frequency domain resources, further determines the frequency domain resources occupied by the first signal based on the first identifier, the second identifier, and the identification information of the access device.

[0247] For example, the frequency domain resources occupied by the first signal are determined based on the second frequency domain resources and the identification information of the first identifier / second identifier / access device. Assume that the decimal value of a portion of the bits of the first identifier is N. ID1 The second frequency domain resource includes M frequency domain units, with indices of 0, 1, ..., M-1. Therefore, the index Ind of the frequency domain resource occupied by the first signal is equal to mod(N). ID1 M), that is, N ID1 The modulo result of M is the index of the frequency domain resource occupied by the first signal in the second frequency domain resource. The determination of the frequency domain resource occupied by the first signal within the second frequency domain resource based on the second identifier / access device identifier information is similar and will not be elaborated further.

[0248] For example, the frequency domain resources occupied by the first signal are determined based on the first frequency domain resources and the identification information of the first identifier / second identifier / access device. Assume that the decimal value of a portion of the bits of the second identifier is N. ID2 The first frequency domain resource includes M' frequency domain units, with indices of 0, 1, ..., M'-1. Therefore, the index Ind of the frequency domain resource occupied by the first signal is equal to mod(N). ID2 ,M'), that is, N ID2 The modulo result of M' is the index of the frequency domain resource occupied by the first signal in the first frequency domain resource.

[0249] In some embodiments, the environmental energy device can determine Q frequency domain resources (Q≥1) based on the first information described above, and the environmental energy device can randomly select one frequency domain resource from the Q frequency domain resources as the frequency domain resource occupied by the first signal.

[0250] For example, the environmental energy device is device type 1, and the second frequency domain resource corresponding to device type 1 includes 4 frequency domain units. The environmental energy device randomly selects one frequency domain unit from the 4 frequency domain units as the frequency domain resource occupied by the first signal.

[0251] For example, the environmental energy device is device type 2a, and the second frequency domain resource corresponding to device type 2a includes 4 frequency domain ranges. The environmental energy device randomly selects one frequency domain range from the 4 frequency domain ranges as the frequency domain resource occupied by the first signal.

[0252] For example, the first frequency domain resource includes 8 frequency domain units, and the environmental energy device randomly selects one frequency domain unit from the 8 frequency domain units as the frequency domain resource occupied by the first signal.

[0253] For example, the first frequency domain resource includes eight frequency domain ranges, and the environmental energy device randomly selects one frequency domain range from the eight frequency domain ranges as the frequency domain resource occupied by the first signal.

[0254] For example, the environmental energy device determines 6 frequency domain units based on the code rate and the cumulative energy value of the functional signal. The environmental energy device randomly selects one frequency domain unit from the 6 frequency domain units as the frequency domain resource occupied by the first signal.

[0255] For example, the environmental energy device determines two frequency domain units based on the data rate and the second identifier, and randomly selects one of the two frequency domain units as the frequency domain resource occupied by the first signal.

[0256] The descriptions of frequency domain units and frequency domain ranges can be found in the cases described in 5) and 6) above.

[0257] In some embodiments, the location of the frequency domain resources occupied by the first signal is determined relative to a first frequency domain location.

[0258] In some embodiments, the first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the frequency domain start position of the channel used by the access device; the frequency domain end position of the channel used by the access device; the center frequency position of the channel used by the access device; the frequency domain start position of the preamble; the frequency domain end position of the preamble; the center frequency position of the preamble; and the frequency domain position of the carrier wave used for backscattering by the ambient energy device.

[0259] The first frequency domain resource may be an independent frequency domain resource or associated with the frequency domain resources of the NR / LTE system.

[0260] When the first frequency domain resource is associated with the frequency domain resources of the NR / LTE system—for example, if the first frequency domain resource is located within the guard band of the NR / LTE system's frequency domain resources, or if the first frequency domain resource is the same as the NR / LTE system's frequency domain resources—if the first frequency domain position is determined based on the center frequency position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the center frequency position of the carrier or frequency band where the environmental energy system is located. If the first frequency domain position is determined based on the frequency domain start position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the frequency domain start position of the carrier or frequency band where the environmental energy system is located. If the first frequency domain position is determined based on the frequency domain end position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the frequency domain end position of the carrier or frequency band where the environmental energy system is located.

[0261] The access device uses a channel, such as at least one of the following: Physical Reader to Device Channel (PRDCH), Physical Downlink Control Channel (PDCCH), or Physical Downlink Shared Channel (PDSCH).

[0262] In some embodiments, the first frequency domain location is determined by the communication protocol, or is pre-configured, or is configured by the access device.

[0263] For the remaining relevant information regarding the first signal, please refer to steps 820 and 1040; they will not be repeated here.

[0264] Step 1330: Receive confirmation information.

[0265] For details regarding the confirmation information, please refer to step 1060. Step 1330 is an optional step.

[0266] In summary, the method provided in this application enables the reporting of a first signal based on FDM or FDMA technology. This not only meets the access requirements of environmental energy devices but also improves the device access efficiency within the environmental energy system through multiplexing or multiple access. It supports environmental energy devices in determining the frequency domain resources occupied by the first signal based on first information, thereby avoiding conflicts and interference between first signals transmitted by multiple environmental energy devices and ensuring system reliability. Environmental energy devices can autonomously determine which first information(s) to use to determine the frequency domain resources occupied by the first signal based on their own circumstances and transmission parameters, offering high flexibility and resulting in frequency domain resources that better meet actual communication needs.

[0267] Corresponding to Figure 13, Figure 15 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by the access device and includes at least some of the following steps:

[0268] Step 1510: Send the second signal.

[0269] The relevant content of the second signal is described in steps 920 and 1020, and will not be repeated here.

[0270] Step 1520: Receive a first signal, the first signal including a first identifier and / or a second identifier, the frequency domain resources occupied by the first signal being determined based on the first information.

[0271] For related content, please refer to steps 920, 1040, and 1320, which will not be repeated here.

[0272] Step 1530: Send confirmation message.

[0273] For details regarding the confirmation information, please refer to step 1060. Step 1530 is an optional step.

[0274] In summary, the method provided in this application enables the reporting of a first signal based on FDM or FDMA technology. This not only meets the access requirements of environmental energy devices but also improves the device access efficiency within the environmental energy system through multiplexing or multiple access. It supports environmental energy devices in determining the frequency domain resources occupied by the first signal based on first information, thereby avoiding conflicts and interference between first signals transmitted by multiple environmental energy devices and ensuring system reliability. Environmental energy devices can autonomously determine which first information(s) to use to determine the frequency domain resources occupied by the first signal based on their own circumstances and transmission parameters, offering high flexibility and resulting in frequency domain resources that better meet actual communication needs.

[0275] Figure 16 illustrates a flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by an environmental energy device and includes at least some of the following steps:

[0276] Step 1610: Receive the second signal.

[0277] The relevant content of the second signal is described in steps 920 and 1020, and will not be repeated here.

[0278] Step 1620: Send a first signal, the first signal including a first identifier and / or a second identifier, the frequency domain resources occupied by the first signal being determined based on a first parameter.

[0279] In some embodiments, the first parameter is determined based on the indication information of the access device.

[0280] In some embodiments, the first parameter is determined based on the second parameter, which is indicated by the access device. For example, the second parameter may be indicated by the access device via a second signal, or the second parameter may be carried in the second signal, or the second parameter may be indicated by a signal other than the second signal, or the second parameter may be carried in a signal other than the second signal.

[0281] In some embodiments, the first parameter is randomly generated based on a first numerical range, which is from 0 to K-1, and K is determined based on the second parameter and the number of available frequency domain resources. K is greater than 1.

[0282] In some embodiments, the number of available frequency domain resources is determined based on the first frequency domain resources and / or the second frequency domain resources. Optionally, the number of available frequency domain resources refers to the number of frequency domain cells in the first frequency domain resources, or the number of frequency domain ranges in the first frequency domain resources, or the number of frequency domain cells in the second frequency domain resources, or the number of frequency domain ranges in both the first and second frequency domain resources, or the number of frequency domain ranges in both the first and second frequency domain resources.

[0283] For example, suppose the second parameter is Q, the first parameter is q, the second signal carries parameter Q, and the environmental energy device randomly generates parameter q within the range [0, K-1]. Where K = 2. Q *M.

[0284] In some embodiments, the frequency domain resources occupied by the first signal are determined based on the value of a counter, and the initial value of the counter is determined according to a first parameter. For example, the index of the frequency domain resources occupied by the first signal is determined based on the value of the counter. For instance, the index of the frequency domain resources occupied by the first signal is equal to the value of the counter; or, for another example, the index of the frequency domain resources occupied by the first signal is the result of a mathematical operation on the value of the counter.

[0285] In some embodiments, if a second signal is received, the environmental energy device subtracts the number of available frequency domain resources from the first value of the counter to obtain a second value of the counter; if the second value of the counter is less than the number of available frequency domain resources, the frequency domain resources occupied by the first signal are determined based on the second value of the counter.

[0286] For example, assume the first parameter is q, the number of available frequency domain resources is x, and the initial value of the counter is q. If the second signal #1 is received, the environmental energy device subtracts x from the initial value q of the counter. If qx < x, the environmental energy device uses qx as the index of the frequency domain resource occupied by the first signal and sends the first signal using the frequency domain resource with index qx. If the second signal is received subsequently, the value of the counter will not decrease. If qx ≥ x, the environmental energy device will not send the first signal. Assuming qx ≥ x, if the second signal #2 is received, the environmental energy device subtracts x from the value qx of the counter. If qxx < x, the environmental energy device uses qxx as the index of the frequency domain resource occupied by the first signal and sends the first signal using the frequency domain resource with index qxx. If the second signal is received subsequently, the value of the counter will not decrease. If qxx ≥ x, the environmental energy device will not send the first signal. This process continues until the value of the counter is less than the number of available frequency domain resources.

[0287] Among them, the second signal received by the environmental energy device before the first time can be called the repeated second signal. Taking the second signal as an interrogation signaling as an example, the second signal received by the environmental energy device for the first time is the interrogation signaling, and the second signal received for the mth time is the query repeat signaling (QueryRep), where m≥2.

[0288] Optionally, the second signal received by the environmental energy device for the first time is used only to determine the parameter Q, and not to reduce the value of the counter. The environmental energy device only reduces the value of the counter according to the second signal received for the mth time.

[0289] For example: The number of available frequency domain resources determined based on the second frequency domain resources is 4, meaning the second frequency domain resources include 4 available frequency domain resources. The access device sends an inquiry signaling message, which includes indication information to indicate Q = 3. The environmental energy device determines q based on the values ​​of parameters Q and 4, i.e., q is [0, 2]. Q *M-1] = A randomly generated integer within the range [0,31], taking q=5 as an example. The initial value of the counter is q=5. When the environmental energy device receives a QueryRep signal, the counter value decreases by 4. At this time, the counter value = 1 < 4. Therefore, the environmental energy device determines the frequency domain resource occupied by the first signal based on the counter value of 1, that is, the frequency domain resource with an index value of 1 in the available frequency domain resources is used as the frequency domain resource occupied by the first signal.

[0290] Optionally, the second signal received by the environmental energy device for the first time is used both to determine parameter Q and to reduce the value of the counter.

[0291] For example: The number of available frequency domain resources determined based on the second frequency domain resources is 4, meaning the second frequency domain resources include 4 available frequency domain resources. The access device sends an inquiry signaling message, which includes indication information to indicate Q = 3. The environmental energy device determines q based on the values ​​of parameters Q and 4, i.e., q is [0, 2]. Q *M-1] = A randomly generated integer within the range [0,31]. Taking q=5 as an example, the initial value of the counter is q=5, and the value of the counter is reduced by 4. At this time, the value of the counter is 1<4. Therefore, the environmental energy device determines the frequency domain resources occupied by the first signal based on the value of the counter 1, that is, the frequency domain resources with an index value of 1 in the available frequency domain resources are used as the frequency domain resources occupied by the first signal.

[0292] In some embodiments, the location of the frequency domain resources occupied by the first signal is determined relative to a first frequency domain location.

[0293] In some embodiments, the first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the frequency domain start position of the channel used by the access device; the frequency domain end position of the channel used by the access device; the center frequency position of the channel used by the access device; the frequency domain start position of the preamble; the frequency domain end position of the preamble; the center frequency position of the preamble; and the frequency domain position of the carrier used for backscattering by the ambient energy device.

[0294] The first frequency domain resource may be an independent frequency domain resource or associated with the frequency domain resources of the NR / LTE system.

[0295] When the first frequency domain resource is associated with the frequency domain resources of the NR / LTE system—for example, if the first frequency domain resource is located within the guard band of the NR / LTE system's frequency domain resources, or if the first frequency domain resource is the same as the NR / LTE system's frequency domain resources—if the first frequency domain position is determined based on the center frequency position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the center frequency position of the carrier or frequency band where the environmental energy system is located. If the first frequency domain position is determined based on the frequency domain start position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the frequency domain start position of the carrier or frequency band where the environmental energy system is located. If the first frequency domain position is determined based on the frequency domain end position of the first frequency domain resource, it can be understood that the first frequency domain position is determined based on the frequency domain end position of the carrier or frequency band where the environmental energy system is located.

[0296] The access device uses at least one of the following channels: PRDCH, PDCCH, PDSCH.

[0297] In some embodiments, the first frequency domain location is determined by the communication protocol, or is pre-configured, or is configured by the access device.

[0298] For the remaining relevant information regarding the first signal, please refer to steps 820 and 1040; they will not be repeated here.

[0299] Step 1630: Receive confirmation information.

[0300] For details regarding the confirmation information, please refer to step 1060. Step 1630 is an optional step.

[0301] In summary, the method provided in this application enables the reporting of a first signal based on FDM or FDMA technology. This not only meets the access requirements of environmental energy devices but also improves the device access efficiency within the environmental energy system through multiplexing or multiple access. Environmental energy devices can not only update the counter value based on the first parameter to determine whether to send the first signal, but also determine the frequency domain resources occupied by the first signal to avoid conflicts and interference caused by first signals sent by multiple environmental energy devices, thus ensuring the reliability of the system.

[0302] Corresponding to Figure 16, Figure 17 shows a schematic flowchart of a device access method for an environmental energy system provided in an exemplary embodiment of this application. The method is performed by the access device and includes at least some of the following steps:

[0303] Step 1710: Send the second signal.

[0304] The relevant content of the second signal is described in steps 920 and 1020, and will not be repeated here.

[0305] Step 1720: Receive a first signal, the first signal including a first identifier and / or a second identifier, the frequency domain resources occupied by the first signal being determined based on a first parameter.

[0306] For related content, please refer to steps 920, 1040, and 1620, which will not be repeated here.

[0307] Step 1730: Send confirmation message.

[0308] For details regarding the confirmation information, please refer to step 1060. Step 1730 is an optional step.

[0309] In summary, the method provided in this application enables the reporting of a first signal based on FDM or FDMA technology. This not only meets the access requirements of environmental energy devices but also improves the device access efficiency within the environmental energy system through multiplexing or multiple access. Environmental energy devices can not only update the counter value based on the first parameter to determine whether to send the first signal, but also determine the frequency domain resources occupied by the first signal to avoid conflicts and interference caused by first signals sent by multiple environmental energy devices, thus ensuring the reliability of the system.

[0310] Figure 18 shows a structural block diagram of a device access apparatus provided in an exemplary embodiment of this application. This apparatus can be implemented as an environmental energy device as described above, or as part of an environmental energy device as described above. The apparatus includes a transmitting module 1810. Optionally, the apparatus further includes a processing module 1830 and / or a receiving module 1850.

[0311] The transmitting module 1810 is used to transmit a first signal, the first signal including a first identifier and / or a second identifier; wherein, the first identifier is used to indicate N bits of information randomly generated by the device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate device identification information of the device.

[0312] In some embodiments, the processing module 1830 is used to generate the first identifier and / or the second identifier.

[0313] In some embodiments, the processing module 1830 is used to obtain the cumulative energy value of the power supply signal and / or the received strength value of the power supply signal.

[0314] In some embodiments, the processing module 1830 is used to determine the frequency domain resources occupied by the first signal based on the first signal or the first parameter.

[0315] In some embodiments, the processing module 1830 is used to determine the first parameter.

[0316] In some embodiments, the processing module 1830 is configured to randomly generate a first parameter based on a first numerical range, wherein the first numerical range is from 0 to K-1, and K is determined based on a second parameter and the number of available frequency domain resources.

[0317] In some embodiments, the processing module 1830 is configured to: if a second signal is received, subtract the number of available frequency domain resources from the first value of the counter to obtain a second value of the counter; if the second value of the counter is less than the number of available frequency domain resources, determine the frequency domain resources occupied by the first signal based on the second value of the counter.

[0318] In some embodiments, the processing module 1830 is configured to determine the location of the frequency domain resources occupied by the first signal based on the first frequency domain location.

[0319] In some embodiments, the processing module 1830 is used for energy harvesting. That is, the processing module 1830 is used to acquire energy based on the power supply signal, and / or to store energy based on the power supply signal.

[0320] In some embodiments, the energy used by the transmitting module 1810 and / or the receiving module 1850 is the energy collected by the processing module 1830.

[0321] In some embodiments, the transmitting module 1810 transmits signals / data using an active transmission method, and / or the transmitting module 1810 transmits signals / data using a backscattering method.

[0322] In some embodiments, the receiving module 1850 is configured to receive at least one of the following: a second signal, an acknowledgment message, a power supply signal, and a carrier wave.

[0323] In some embodiments, the sending module 1810 is configured to perform one or more of the following steps: step 720, step 740, step 820, step 1040, step 1320, and step 1620.

[0324] In some embodiments, the receiving module 1850 is configured to perform one or more of the following steps: step 1310, step 1330, step 1610, and step 1630.

[0325] In some embodiments, the device includes at least one of the following: an A-IoT device, an AMP device, a passive IoT device, a zero-power device, a low-power device, an ultra-low-power device, and a device with a WUR.

[0326] The aforementioned content regarding determining the frequency domain resources occupied by the first signal based on the first information or the first parameter also applies to the device shown in Figure 18, and will not be repeated here.

[0327] In summary, the apparatus provided in this application implements first signal reporting based on FDM or FDMA technology, which not only meets access requirements but also improves device access efficiency within the environmental energy system through multiplexing or multiple access. It supports determining the frequency domain resources occupied by the first signal based on first information and first parameters to avoid conflicts and interference from multiple first signals, thus ensuring system reliability. The determination of the frequency domain resources occupied by the first signal is highly flexible, and the determined frequency domain resources better meet actual communication needs.

[0328] Figure 19 shows a structural block diagram of a communication device provided in an exemplary embodiment of this application. This device can be implemented as an access device as described above, or as part of an access device as described above. The device includes a receiving module 1910. Optionally, the device further includes a processing module 1930 and / or a transmitting module 1950.

[0329] Receiver module 1910 is configured to receive a first signal, the first signal including a first identifier and / or a second identifier;

[0330] The first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identification information of the environmental energy device.

[0331] In some embodiments, the processing module 1910 is used for at least one of the following: identifying an environmental energy device based on a first signal, determining the time-domain location of the first signal, and determining the frequency-domain location of the first signal.

[0332] In some embodiments, the processing module 1910 is used to determine whether to send an acknowledgment message.

[0333] In some embodiments, the transmitting module 1950 is configured to transmit at least one of the following: a second signal, an acknowledgment message, a power supply signal, and a carrier wave.

[0334] In some embodiments, the sending module 1950 is configured to perform one or more of the following steps: step 710, step 730, step 920, step 1020, step 1060, step 1510, step 1530, step 1710, and step 1730.

[0335] In some embodiments, the receiving module 1910 is configured to perform one or more of the following steps: step 1520, step 1720.

[0336] The aforementioned content regarding the determination of the frequency domain resources occupied by the first signal based on the first information or the first parameter by the environmental energy device is also applicable to the device shown in Figure 19, and will not be elaborated upon here.

[0337] In summary, the device provided in this application supports receiving first signals based on FDM or FDMA technology, which not only meets the access requirements, but also improves the device access efficiency in the environmental energy system through multiplexing or multiple access, supports avoiding conflicts and interference from multiple first signals, and ensures the reliability of the system.

[0338] It should be noted that the apparatus provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the communication device can be divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided in the above embodiments belong to the same concept.

[0339] Figure 20 shows a schematic diagram of the structure of a communication device 2000 for an environmental energy system provided in an exemplary embodiment of this application, including at least one of the following: a receiver 2001, a transmitter 2002, a processor 2003, a memory 2004, and a bus (not shown in the figure). The communication device 2000 is used to perform some or all of the steps performed by the aforementioned access device. The receiver 2001 is used to implement the receiving function, and the transmitter 2002 is used to implement the transmitting function.

[0340] In some embodiments, receiver 2001 can be used to implement the functions and steps of receiving module 1910, and transmitter 2002 can be used to implement the functions and steps of sending module 1950.

[0341] Optionally, the receiver 2001 and transmitter 2002 can be implemented as a communication component, which may be a communication chip, and can be referred to as a transceiver. Optionally, the receiver 2001 and transmitter 2002 can be implemented as a wireless communication component and / or a wired communication component. Optionally, the wireless communication component includes a wireless communication chip and / or a radio frequency antenna. Optionally, the wired communication component includes a wired communication chip and / or a wired interface.

[0342] The processor 2003 includes one or more processing cores. The processor 2003 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 2003 can be used to implement the functions and steps of the processing module 1930 described above. The memory 2004 can be used to store computer programs executed by the processor 2003, which executes the computer programs to implement the various steps in the above method embodiments.

[0343] In some embodiments, the memory 2004 may be connected to the processor 2003, the receiver 2001, and the transmitter 2002.

[0344] Furthermore, the memory 2004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, EEPROM (Electrically Erasable Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory), SRAM (Static Random Access Memory), ROM (Read-Only Memory), magnetic storage, flash memory, and PROM (Programmable Read-Only Memory).

[0345] In some embodiments, the receiver 2001 independently receives signals / data, or the processor 2003 controls the receiver 2001 to receive signals / data, or the processor 2003 requests the receiver 2001 to receive signals / data, or the processor 2003 cooperates with the receiver 2001 to receive signals / data.

[0346] In some embodiments, the transmitter 2002 independently transmits signals / data, or the processor 2003 controls the transmitter 2002 to transmit signals / data, or the processor 2003 requests the transmitter 2002 to transmit signals / data, or the processor 2003 cooperates with the transmitter 2002 to transmit signals / data.

[0347] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0348] Figure 21 shows a schematic diagram of the structure of a communication device 2100 for an environmental energy system provided in an exemplary embodiment of this application, including at least one of the following: a receiver 2110, a transmitter 2120, a processor 2130, a memory 2140, and a bus (not shown in the figure). The communication device 2100 can be used to perform some or all of the steps performed by the aforementioned environmental energy device.

[0349] Receiver 2110 is used to implement the receiving function, and transmitter 2120 is used to implement the sending function.

[0350] In some embodiments, receiver 2110 and transmitter 2120 can be implemented as a communication component, which may be a communication chip, and may be referred to as a transceiver. Exemplarily, receiver 2110 and transmitter 2120 are implemented as a wireless communication component. Optionally, the wireless communication component includes a wireless communication chip and / or a radio frequency antenna (not shown in the figure).

[0351] In some embodiments, receiver 2110 can be used to implement the functions and steps of the receiving module 1850 described above. Optionally, receiver 2110 can be implemented as a first receiver 2113 and a second receiver 2115. Optionally, the first receiver 2113 and the second receiver 2115 are two independently operating receivers, that is, receiver 2110 includes two mutually independent first receivers 2113 and second receivers 2115. Optionally, receiver 2110 can be implemented as a combined receiver of the first receiver 2113 and the second receiver 2115.

[0352] In some embodiments, the first receiver 2113 is implemented as a WUR (Wake-up Receiver), and may also be called LP-WUR (Low Power WUR), ULP-WUR (Ultra Low Power WUR), low power receiver, ultra-low power receiver, zero power receiver, auxiliary receiver, etc.

[0353] In some embodiments, the second receiver 2115 is implemented as a master receiver or a legacy receiver.

[0354] In some embodiments, transmitter 2120 can be used to implement the functions and steps of the transmitting module 1810 described above. Optionally, transmitter 2120 can be implemented as a first transmitter 2123 and / or a second transmitter 2125. Optionally, the first transmitter 2123 and the second transmitter 2125 are two transmitters that operate independently, that is, transmitter 2120 includes two mutually independent first transmitters 2123 and second transmitters 2125. Optionally, transmitter 2120 can be implemented as a combined transmitter of the first transmitter 2123 and the second transmitter 2125.

[0355] In some embodiments, the first transmitter 2123 is implemented as a backscatter transmitter, and the second transmitter 2125 is implemented as a main transmitter.

[0356] In some embodiments, the processor 2130 and the receiver 2110 may be implemented as a single module, or the processor 2130 may be implemented as part of the receiver 2110.

[0357] The processor 2130 includes one or more processing cores. The processor 2130 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 2130 can be used to implement the functions and steps of the processing module 1830 described above.

[0358] The memory 2140 can be used to store a computer program executed by the processor 2130, which is used to execute the computer program to implement the various steps in the above method embodiments.

[0359] In some embodiments, memory 2140 may be connected to processor 2130, receiver 2110, and transmitter 2120. Furthermore, memory 2140 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, EEPROM, EPROM, SRAM, ROM, magnetic storage, flash memory, and PROM.

[0360] In some embodiments, the processor 2130 and / or the memory 2140 may be implemented as a circuit structure.

[0361] In some embodiments, the receiver 2110 independently receives signals / data, or the processor 2130 controls the receiver 2110 to receive signals / data, or the processor 2130 requests the receiver 2110 to receive signals / data, or the processor 2130 cooperates with the receiver 2110 to receive signals / data.

[0362] In some embodiments, the transmitter 2120 transmits signals / data independently, or the processor 2130 controls the transmitter 2120 to transmit signals / data, or the processor 2130 requests the transmitter 2120 to transmit signals / data, or the processor 2130 cooperates with the transmitter 2120 to transmit signals / data.

[0363] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0364] In one exemplary embodiment of this application, a chip is also provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is run on a communication device, is used to implement the device access method for the environmental energy system provided in the above-described method embodiments.

[0365] In some embodiments, the chip includes a transmitting module 1810. Optionally, the chip further includes a processing module 1830 and / or a receiving module 1850. Related details can be found above and will not be repeated here.

[0366] In some embodiments, the chip includes a receiving module 1910. Optionally, the chip further includes a processing module 1930 and / or a transmitting module 1950. Related details can be found above and will not be repeated here.

[0367] In one exemplary embodiment of this application, a computer-readable storage medium is also provided, which stores at least one program, which is loaded and executed by a processor to implement the device access method for the environmental energy system provided in the above-described method embodiments.

[0368] In one exemplary embodiment of this application, a computer program product is also provided, which includes computer instructions stored in a computer-readable storage medium. A processor retrieves the computer instructions from the computer-readable storage medium and executes the computer instructions to implement the device access method for the environmental energy system provided in the above-described method embodiments.

[0369] In one exemplary embodiment of this application, a computer program is also provided, the computer program including computer instructions stored in a computer-readable storage medium, a processor obtaining the computer instructions from the computer-readable storage medium, and the processor executing the computer instructions to implement the device access method for the environmental energy system provided in the above-described method embodiments.

[0370] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0371] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for connecting equipment to an environmental energy system, characterized in that, The method is performed by an environmental energy device, and the method includes: Send a first signal, the first signal including a first identifier and / or a second identifier; The first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identification information of the environmental energy device.

2. The method according to claim 1, characterized in that, The first signal is sent in response to the transmission of the second signal, which includes trigger signaling or interrogation signaling.

3. The method according to claim 1 or 2, characterized in that, Sending the first signal includes: The first signal is transmitted based on frequency division multiple access (FDMA) or frequency division multiplexing (FDM) technology.

4. The method according to any one of claims 1 to 3, characterized in that, The frequency domain resources occupied by the first signal are determined based on the first information or the first parameter.

5. The method according to claim 4, characterized in that, The first information includes at least one of the following: the first identifier; the second identifier; the device type of the environmental energy device; the identification information of the access device; a first frequency domain resource, which supports the use of the environmental energy system; a second frequency domain resource, which supports the use of the device type of the environmental energy device; the cumulative energy value of the power supply signal; the received strength value of the power supply signal; the number of bits to be transmitted by the environmental energy device; the transmit block size to be transmitted by the environmental energy device; the code rate; and the data rate.

6. The method according to claim 5, characterized in that, The energy accumulation value of the power supply signal includes a first energy accumulation value and / or a second energy accumulation value; Wherein, the first energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the energy supply signal within a time unit, and the second energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the energy supply signal within a first time range.

7. The method according to claim 5 or 6, characterized in that, The first frequency domain resources support the use of ambient energy systems, new radio (NR) systems, and long-term evolution (LTE) systems; or, the first frequency domain resources support the use of ambient energy systems and NR systems; or, the first frequency domain resources support the use of ambient energy systems and LTE systems.

8. The method according to claim 5 or 6, characterized in that, The first frequency domain resource is located within the guard band of the third frequency domain resource, which supports the use of the New Radio (NR) system and / or Long Term Evolution (LTE) system.

9. The method according to any one of claims 5 to 8, characterized in that, The first frequency domain resource is either agreed upon by the communication protocol, pre-configured, or configured by the access device.

10. The method according to any one of claims 5 to 9, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the first identifier, or based on the decimal values ​​corresponding to all bits in the first identifier.

11. The method according to any one of claims 5 to 9, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the second identifier, or based on the decimal values ​​corresponding to all bits in the second identifier.

12. The method according to claim 4, characterized in that, The first parameter is determined based on the indication information from the access device.

13. The method according to claim 12, characterized in that, The first parameter is determined based on the second parameter, which is indicated by the access device.

14. The method according to claim 13, characterized in that, The first parameter is randomly generated based on a first numerical range, which is from 0 to K-1, and K is determined based on the second parameter and the number of available frequency domain resources.

15. The method according to claim 14, characterized in that, The number of available frequency domain resources is determined based on a first frequency domain resource and / or a second frequency domain resource; wherein the first frequency domain resource supports the use of the environmental energy system, and the second frequency domain resource supports the use of the equipment type of the environmental energy device.

16. The method according to any one of claims 12 to 15, characterized in that, The frequency domain resources occupied by the first signal are determined based on the value of the counter, and the initial value of the counter is determined according to the first parameter.

17. The method according to claim 16, characterized in that, The method further includes: If a second signal is received, the first value of the counter is subtracted from the number of available frequency domain resources to obtain the second value of the counter; If the second value of the counter is less than the number of available frequency domain resources, the frequency domain resources occupied by the first signal are determined based on the second value of the counter.

18. The method according to any one of claims 4 to 17, characterized in that, The location of the frequency domain resources occupied by the first signal is determined relative to the first frequency domain location.

19. The method according to claim 18, characterized in that, The first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource, which supports the use of the environmental energy system; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the center frequency position of the second frequency domain resource, which supports the use of the device type of the environmental energy equipment; and the frequency domain start position of the second frequency domain resource. The frequency domain end position of the second frequency domain resource; the center frequency position of the preamble sent by the environmental energy device; the frequency domain start position of the preamble; the frequency domain end position of the preamble; the frequency domain start position of the channel used by the access device; the frequency domain end position of the channel used by the access device; the center frequency position of the channel used by the access device. Frequency domain position of the carrier used for backscattering of the environmental energy device.

20. The method according to claim 18 or 19, characterized in that, The first frequency domain position is determined by the communication protocol, or is pre-configured, or is configured by the access device.

21. The method according to any one of claims 1 to 20, characterized in that, The device identification information of the environmental energy equipment includes protocol control PC information and / or electronic product code (EPC) information.

22. The method according to any one of claims 1 to 21, characterized in that, The method further includes: Receive confirmation information, which is used to respond to the first signal.

23. The method according to claim 22, characterized in that, The confirmation information is generated using a first bit sequence, or the confirmation information is generated using first encoded information.

24. The method according to claim 22 or 23, characterized in that, The confirmation information is sent based on Frequency Division Multiple Access (FDMA) technology, or based on Frequency Division Multiplexing (FDM) technology, or based on a cascading method.

25. The method according to any one of claims 1 to 24, characterized in that, The environmental energy device supports active transmission-based communication and / or backscatter-based communication.

26. A method for connecting equipment to an environmental energy system, characterized in that, The method is executed by the access device, and the method includes: Receive a first signal, the first signal including a first identifier and / or a second identifier; The first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identification information of the environmental energy device.

27. The method according to claim 26, characterized in that, The first signal is transmitted based on Frequency Division Multiple Access (FDMA) or Frequency Division Multiplexing (FDM) technology.

28. The method according to claim 26 or 27, characterized in that, The method further includes: Send a second signal, which includes a trigger signaling or an interrogation signaling.

29. The method according to any one of claims 26 to 28, characterized in that, The frequency domain resources occupied by the first signal are determined based on the first information or the first parameter.

30. The method according to claim 29, characterized in that, The first information includes at least one of the following: the first identifier; the second identifier; the device type of the environmental energy device; the identification information of the access device; and a first frequency domain resource, wherein the first frequency domain resource supports the use of the environmental energy system. The second frequency domain resources support the device type of the environmental energy device; the cumulative energy value of the power supply signal; the received strength value of the power supply signal; the number of bits to be transmitted by the environmental energy device; the transmit block size to be transmitted by the environmental energy device; the code rate; and the data rate.

31. The method according to claim 30, characterized in that, The energy accumulation value of the power supply signal includes a first energy accumulation value and / or a second energy accumulation value; wherein, the first energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a time unit, and the second energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a first time range.

32. The method according to claim 30 or 31, characterized in that, The first frequency domain resources support the use of ambient energy systems, new radio (NR) systems, and long-term evolution (LTE) systems; or, the first frequency domain resources support the use of ambient energy systems and NR systems; or, the first frequency domain resources support the use of ambient energy systems and LTE systems.

33. The method according to claim 30 or 31, characterized in that, The first frequency domain resource is located within the guard band of the third frequency domain resource, which supports the use of the New Radio (NR) system and / or Long Term Evolution (LTE) system.

34. The method according to any one of claims 30 to 33, characterized in that, The first frequency domain resource is either agreed upon by the communication protocol, pre-configured, or configured by the access device.

35. The method according to any one of claims 30 to 34, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the first identifier, or based on the decimal values ​​corresponding to all bits in the first identifier.

36. The method according to any one of claims 30 to 34, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the second identifier, or based on the decimal values ​​corresponding to all bits in the second identifier.

37. The method according to claim 29, characterized in that, The first parameter is determined based on the indication information from the access device.

38. The method according to claim 37, characterized in that, The first parameter is determined based on the second parameter, which is indicated by the access device.

39. The method according to claim 38, characterized in that, The first parameter is randomly generated based on a first numerical range, which is from 0 to K-1, and K is determined based on the second parameter and the number of available frequency domain resources.

40. The method according to claim 39, characterized in that, The number of available frequency domain resources is determined based on a first frequency domain resource and / or a second frequency domain resource; wherein the first frequency domain resource supports the use of the environmental energy system, and the second frequency domain resource supports the use of the equipment type of the environmental energy device.

41. The method according to any one of claims 37 to 40, characterized in that, The frequency domain resources occupied by the first signal are determined based on the value of the counter, and the initial value of the counter is determined according to the first parameter.

42. The method according to any one of claims 29 to 41, characterized in that, The location of the frequency domain resources occupied by the first signal is determined relative to the first frequency domain location.

43. The method according to claim 42, characterized in that, The first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource, which supports the use of the environmental energy system; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the center frequency position of the second frequency domain resource, which supports the use of the device type of the environmental energy equipment; and the frequency domain start position of the second frequency domain resource. The frequency domain end position of the second frequency domain resource; the center frequency position of the preamble sent by the environmental energy device; the frequency domain start position of the preamble; The frequency domain end position of the preamble; the frequency domain start position of the channel used by the access device; The frequency domain end position of the channel used by the access device; the center frequency position of the channel used by the access device; Frequency domain position of the carrier used for backscattering of the environmental energy device.

44. The method according to claim 42 or 43, characterized in that, The first frequency domain position is determined by the communication protocol, or is pre-configured, or is configured by the access device.

45. The method according to any one of claims 26 to 44, characterized in that, The device identification information of the environmental energy equipment includes protocol control PC information and / or electronic product code (EPC) information.

46. ​​The method according to any one of claims 26 to 45, characterized in that, The method further includes: Send an acknowledgment message, which is used in response to the first signal.

47. The method according to claim 46, characterized in that, The confirmation information is generated using a first bit sequence, or the confirmation information is generated using first encoded information.

48. The method according to claim 46 or 47, characterized in that, The confirmation information is sent based on Frequency Division Multiple Access (FDMA) technology, or based on Frequency Division Multiplexing (FDM) technology, or based on a cascading method.

49. The method according to any one of claims 26 to 48, characterized in that, The environmental energy device supports active transmission-based communication and / or backscatter-based communication.

50. A device for connecting an environmental energy system, characterized in that, The device includes: A transmitting module is configured to transmit a first signal, the first signal including a first identifier and / or a second identifier; The first identifier is used to indicate N bits of information randomly generated by the device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identifier information of the device.

51. The apparatus according to claim 50, characterized in that, The first signal is sent in response to the transmission of the second signal, which includes trigger signaling or interrogation signaling.

52. The apparatus according to claim 50 or 51, characterized in that, The transmitting module is used to transmit the first signal based on frequency division multiple access (FDMA) technology or frequency division multiplexing (FDM) technology.

53. The apparatus according to any one of claims 50 to 52, characterized in that, The device further includes a processing module for determining the frequency domain resources occupied by the first signal based on the first information or the first parameter.

54. The apparatus according to claim 53, characterized in that, The first information includes at least one of the following: the first identifier; the second identifier; the device type of the device; the identification information of the access device; and the first frequency domain resource, which supports the use of the environmental energy system. Second frequency domain resources, which support the device type of the device; cumulative energy value of the power supply signal; received strength value of the power supply signal; number of bits to be transmitted by the device; transport block size to be transmitted by the device; code rate; data rate.

55. The apparatus according to claim 54, characterized in that, The energy accumulation value of the power supply signal includes a first energy accumulation value and / or a second energy accumulation value; wherein, the first energy accumulation value is the energy accumulation value obtained by the device based on the power supply signal within a time unit, and the second energy accumulation value is the energy accumulation value obtained by the device based on the power supply signal within a first time range.

56. The apparatus according to claim 54 or 55, characterized in that, The first frequency domain resources support the use of ambient energy systems, new radio (NR) systems, and long-term evolution (LTE) systems; or, the first frequency domain resources support the use of ambient energy systems and NR systems; or, the first frequency domain resources support the use of ambient energy systems and LTE systems.

57. The apparatus according to claim 54 or 55, characterized in that, The first frequency domain resource is located within the guard band of the third frequency domain resource, which supports the use of the New Radio (NR) system and / or Long Term Evolution (LTE) system.

58. The apparatus according to any one of claims 54 to 57, characterized in that, The first frequency domain resource is either agreed upon by the communication protocol, pre-configured, or configured by the access device.

59. The apparatus according to any one of claims 54 to 58, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the first identifier, or based on the decimal values ​​corresponding to all bits in the first identifier.

60. The apparatus according to any one of claims 54 to 58, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the second identifier, or based on the decimal values ​​corresponding to all bits in the second identifier.

61. The apparatus according to claim 53, characterized in that, The processing module is further configured to determine the first parameter based on the indication information from the access device.

62. The apparatus according to claim 61, characterized in that, The processing module is further configured to determine the first parameter based on the second parameter, wherein the second parameter is indicated by the access device.

63. The apparatus according to claim 62, characterized in that, The first parameter is randomly generated based on a first numerical range, which is from 0 to K-1, and K is determined based on the second parameter and the number of available frequency domain resources.

64. The apparatus according to claim 63, characterized in that, The number of available frequency domain resources is determined based on a first frequency domain resource and / or a second frequency domain resource; wherein the first frequency domain resource supports the use of the environmental energy system, and the second frequency domain resource supports the use of the device type.

65. The apparatus according to any one of claims 61 to 64, characterized in that, The frequency domain resources occupied by the first signal are determined based on the value of the counter, and the initial value of the counter is determined according to the first parameter.

66. The apparatus according to claim 65, characterized in that, The processing module is further configured to: If a second signal is received, the first value of the counter is subtracted from the number of available frequency domain resources to obtain the second value of the counter; If the second value of the counter is less than the number of available frequency domain resources, the frequency domain resources occupied by the first signal are determined based on the second value of the counter.

67. The apparatus according to any one of claims 53 to 66, characterized in that, The location of the frequency domain resources occupied by the first signal is determined relative to the first frequency domain location.

68. The apparatus according to claim 67, characterized in that, The first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource, which supports the use of the environmental energy system; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the center frequency position of the second frequency domain resource, which supports the use of the device type of the device; and the frequency domain start position of the second frequency domain resource. The frequency domain end position of the second frequency domain resource; the center frequency point position of the preamble sent by the device; the frequency domain start position of the preamble; The frequency domain end position of the preamble; the frequency domain start position of the channel used by the access device; The frequency domain end position of the channel used by the access device; the center frequency position of the channel used by the access device; Frequency domain position of the carrier used for backscattering by the device.

69. The apparatus according to claim 67 or 68, characterized in that, The first frequency domain position is determined by the communication protocol, or is pre-configured, or is configured by the access device.

70. The apparatus according to any one of claims 50 to 69, characterized in that, The device identification information of the device includes protocol control PC information and / or electronic product code (EPC) information.

71. The apparatus according to any one of claims 50 to 70, characterized in that, The device further includes a receiving module for receiving confirmation information, which is used to respond to the first signal.

72. The apparatus according to claim 71, characterized in that, The confirmation information is generated using a first bit sequence, or the confirmation information is generated using first encoded information.

73. The apparatus according to claim 71 or 72, characterized in that, The confirmation information is sent based on Frequency Division Multiple Access (FDMA) technology, or based on Frequency Division Multiplexing (FDM) technology, or based on a cascading method.

74. The apparatus according to any one of claims 50 to 73, characterized in that, The device supports communication methods based on active transmission and / or communication methods based on backscattering.

75. A device for connecting an environmental energy system, characterized in that, The device includes: A receiving module is configured to receive a first signal, wherein the first signal includes a first identifier and / or a second identifier; The first identifier is used to indicate N bits of information randomly generated by the environmental energy device, where N is an integer greater than or equal to 1, and the second identifier is used to indicate the device identification information of the environmental energy device.

76. The apparatus according to claim 75, characterized in that, The first signal is transmitted based on Frequency Division Multiple Access (FDMA) or Frequency Division Multiplexing (FDM) technology.

77. The apparatus according to claim 75 or 76, characterized in that, The device further includes a transmitting module for transmitting a second signal, the second signal including a trigger signaling or an interrogation signaling.

78. The apparatus according to any one of claims 75 to 77, characterized in that, The frequency domain resources occupied by the first signal are determined based on the first information or the first parameter.

79. The apparatus according to claim 78, characterized in that, The first information includes at least one of the following: the first identifier; the second identifier; the device type of the environmental energy device; the device identification information; and a first frequency domain resource, wherein the first frequency domain resource supports the use of the environmental energy system. The second frequency domain resources support the device type of the environmental energy device; the cumulative energy value of the power supply signal; the received strength value of the power supply signal; the number of bits to be transmitted by the environmental energy device; the transmit block size to be transmitted by the environmental energy device; the code rate; and the data rate.

80. The apparatus according to claim 79, characterized in that, The energy accumulation value of the power supply signal includes a first energy accumulation value and / or a second energy accumulation value; wherein, the first energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a time unit, and the second energy accumulation value is the energy accumulation value obtained by the environmental energy device based on the power supply signal within a first time range.

81. The apparatus according to claim 79 or 80, characterized in that, The first frequency domain resources support the use of ambient energy systems, new radio (NR) systems, and long-term evolution (LTE) systems; or, the first frequency domain resources support the use of ambient energy systems and NR systems; or, the first frequency domain resources support the use of ambient energy systems and LTE systems.

82. The apparatus according to claim 79 or 80, characterized in that, The first frequency domain resource is located within the guard band of the third frequency domain resource, which supports the use of the New Radio (NR) system and / or Long Term Evolution (LTE) system.

83. The apparatus according to any one of claims 79 to 82, characterized in that, The first frequency domain resource is either agreed upon by the communication protocol, pre-configured, or configured by the device.

84. The apparatus according to any one of claims 79 to 83, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the first identifier, or based on the decimal values ​​corresponding to all bits in the first identifier.

85. The apparatus according to any one of claims 79 to 83, characterized in that, The frequency domain resources occupied by the first signal are determined based on the decimal values ​​corresponding to some bits in the second identifier, or based on the decimal values ​​corresponding to all bits in the second identifier.

86. The apparatus according to claim 79, characterized in that, The first parameter is determined based on the instruction information of the device.

87. The apparatus according to claim 86, characterized in that, The first parameter is determined based on the second parameter, which is indicated by the device.

88. The apparatus according to claim 87, characterized in that, The first parameter is randomly generated based on a first numerical range, which is from 0 to K-1, and K is determined based on the second parameter and the number of available frequency domain resources.

89. The apparatus according to claim 88, characterized in that, The number of available frequency domain resources is determined based on a first frequency domain resource and / or a second frequency domain resource; wherein the first frequency domain resource supports the use of the environmental energy system, and the second frequency domain resource supports the use of the equipment type of the environmental energy device.

90. The apparatus according to any one of claims 86 to 89, characterized in that, The frequency domain resources occupied by the first signal are determined based on the value of the counter, and the initial value of the counter is determined according to the first parameter.

91. The apparatus according to any one of claims 78 to 90, characterized in that, The location of the frequency domain resources occupied by the first signal is determined relative to the first frequency domain location.

92. The apparatus according to claim 91, characterized in that, The first frequency domain position is determined based on at least one of the following: the center frequency position of the first frequency domain resource, which supports the use of the environmental energy system; the frequency domain start position of the first frequency domain resource; the frequency domain end position of the first frequency domain resource; the center frequency position of the second frequency domain resource, which supports the use of the device type of the environmental energy equipment; and the frequency domain start position of the second frequency domain resource. The frequency domain end position of the second frequency domain resource; the center frequency position of the preamble sent by the environmental energy device; the frequency domain start position of the preamble; The frequency domain end position of the preamble; the frequency domain start position of the channel used by the device; The frequency domain end position of the channel used by the device; the center frequency position of the channel used by the device; Frequency domain position of the carrier used for backscattering of the environmental energy device.

93. The apparatus according to claim 91 or 92, characterized in that, The first frequency domain position is determined by the communication protocol, or is pre-configured, or is configured by the device.

94. The apparatus according to any one of claims 75 to 93, characterized in that, The device identification information of the environmental energy equipment includes protocol control PC information and / or electronic product code (EPC) information.

95. The apparatus according to any one of claims 75 to 94, characterized in that, The device further includes a sending module for sending confirmation information, which is used to respond to the first signal.

96. The apparatus according to claim 95, characterized in that, The confirmation information is generated using a first bit sequence, or the confirmation information is generated using first encoded information.

97. The apparatus according to claim 95 or 96, characterized in that, The confirmation information is sent based on Frequency Division Multiple Access (FDMA) technology, or based on Frequency Division Multiplexing (FDM) technology, or based on a cascading method.

98. The apparatus according to any one of claims 75 to 97, characterized in that, The environmental energy device supports active transmission-based communication and / or backscatter-based communication.

99. A communication device, characterized in that, The communication device includes a transceiver; wherein the communication device is used to implement the device access method for the environmental energy system as described in any one of claims 1 to 25.

100. A communication device, characterized in that, The communication device includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the device access method for an environmental energy system as described in any one of claims 26 to 49.

101. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one program, which is loaded and executed by a processor to implement the device access method for an environmental energy system as described in any one of claims 1 to 25, or the device access method for an environmental energy system as described in any one of claims 26 to 49.

102. A computer program product or computer program, characterized in that, The computer program product or the computer program includes computer instructions stored in a computer-readable storage medium, a processor retrieves the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement the device access method for an environmental energy system as described in any one of claims 1 to 25, or the device access method for an environmental energy system as described in any one of claims 26 to 49.

103. A chip, characterized in that, The chip includes a programmable logic circuit and / or at least a program, and the chip is used to implement the device access method of the environmental energy system as described in any one of claims 1 to 25, or the device access method of the environmental energy system as described in any one of claims 26 to 49, based on the programmable logic circuit and / or the at least a program.

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