Receiver parameter determination method, and apparatus, device, medium and program product

Abstract

The present application belongs to the field of ambient IoT. Provided are a receiver parameter determination method, and an apparatus, a device, a medium and a program product. The method is executed by an ambient IoT device. The method comprises: determining a receiver parameter used by an ambient IoT device, wherein the receiver parameter comprises a receiver type and / or a receiving bandwidth. In the method, a receiver parameter used by an ambient IoT device is determined, and the receiver parameter comprises a receiver type and / or a receiving bandwidth, such that in different scenarios, receiver parameters corresponding to different scenarios are determined, thereby conforming to the condition of actual requirements and improving the flexibility of use of the ambient IoT device.

Description

Receiver parameter determination method, device, equipment, medium and program product Technical Field

[0001] The present application relates to the field of zero power consumption, and in particular to a method, apparatus, device, medium and program product for determining receiver parameters. Background Art

[0002] With the continuous evolution of wireless communication technology, the Internet of Things (IoT) is being applied to all aspects of production and life. Due to the varying power consumption and size requirements of IoT in different scenarios, ultra-low power, extremely small size, and battery-free zero-power IoT devices have emerged.

[0003] The zero-power devices in the zero-power Internet of Things may not have the same requirements for receivers in different communication scenarios or different communication processes.

[0004] Summary of the Invention

[0005] This application provides a receiver parameter determination method, apparatus, device, medium, and program product. The technical solution at least includes:

[0006] According to one aspect of an embodiment of the present application, a method for determining receiver parameters is provided. The method is performed by a zero-power consumption device, and the method includes:

[0007] Receiver parameters used by the zero-power device are determined, where the receiver parameters include a receiver type and / or a receiving bandwidth.

[0008] According to another aspect of an embodiment of the present application, a method for information transmission is provided. The method is performed by a zero-power consumption device, and the method includes:

[0009] First information is sent, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0010] According to another aspect of an embodiment of the present application, a method for determining receiver parameters is provided. The method is performed by a network device, and the method includes:

[0011] Receiver parameters used by the zero-power device are determined, where the receiver parameters include a receiver type and / or a receiving bandwidth.

[0012] According to another aspect of an embodiment of the present application, a method for transmitting information is provided. The method is performed by a network device, and the method includes:

[0013] First information sent by the zero-power consumption device is received, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0014] According to another aspect of an embodiment of the present application, a method for transmitting information is provided. The method is performed by a network device, and the method includes:

[0015] Advertises supported zero-power device types or allowed access zero-power device types.

[0016] According to another aspect of an embodiment of the present application, a zero-power consumption device is provided, the device comprising:

[0017] The determination module is used to determine receiver parameters used by the zero-power consumption device, where the receiver parameters include receiver type and / or receiving bandwidth.

[0018] According to another aspect of an embodiment of the present application, a zero-power consumption device is provided, the device comprising:

[0019] The sending module is used to send first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0020] According to another aspect of an embodiment of the present application, a network-side device is provided, the device including:

[0021] The determination module is used to determine receiver parameters used by the zero-power consumption device, where the receiver parameters include receiver type and / or receiving bandwidth.

[0022] According to another aspect of an embodiment of the present application, a network-side device is provided, the device including:

[0023] The receiving module is configured to receive first information sent by a zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0024] According to another aspect of an embodiment of the present application, a network-side device is provided, the device including:

[0025] The broadcast module is used to broadcast the types of zero-power devices supported or allowed to access.

[0026] According to another aspect of an embodiment of the present application, a zero-power consumption device is provided, the zero-power consumption device including:

[0027] processor;

[0028] a transceiver connected to the processor;

[0029] a memory for storing executable instructions for the processor;

[0030] The processor is configured to load and execute executable instructions to implement the receiver parameter determination method or information transmission method as described in the above aspects.

[0031] According to another aspect of an embodiment of the present application, a network device is provided, the network device including:

[0032] processor;

[0033] a transceiver connected to the processor;

[0034] a memory for storing executable instructions for the processor;

[0035] The processor is configured to load and execute executable instructions to implement the receiver parameter determination method or information transmission method as described in the above aspects.

[0036] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, which stores at least one program, and the at least one program is loaded and executed by a processor to implement the receiver parameter determination method or information transmission method as described in the above aspects.

[0037] According to another aspect of an embodiment of the present application, a computer program product or computer program is provided, which includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor obtains the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement the receiver parameter determination method or information transmission method as described in the above aspects.

[0038] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0039] By determining the receiver parameters used by the zero-power device, the receiver parameters include the receiver type and / or receiving bandwidth, so that the receiver parameters corresponding to different scenarios can be determined in different scenarios, in accordance with actual needs, and the flexibility of using the zero-power device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] FIG1 shows a schematic diagram of a zero-power communication system provided by an exemplary embodiment of the present application;

[0042] FIG2 shows a schematic diagram of radio frequency energy harvesting provided by related art;

[0043] FIG3 is a schematic diagram showing a backscatter communication process provided by the related art;

[0044] FIG4 shows a schematic diagram of resistive load modulation provided by the related art;

[0045] FIG5 is a schematic diagram showing an encoding method provided by related art;

[0046] FIG6 shows a schematic diagram of a receiver architecture provided by the related art;

[0047] FIG7 shows a flowchart of a method for determining receiver parameters provided by an exemplary embodiment of the present application;

[0048] FIG8 shows a flowchart of a method for determining receiver parameters provided by an exemplary embodiment of the present application;

[0049] FIG9 is a schematic diagram showing a receiving bandwidth provided by an exemplary embodiment of the present application;

[0050] FIG10 shows a schematic diagram of a channel division method provided by an exemplary embodiment of the present application;

[0051] FIG11 shows a flow chart of an information transmission method provided by an exemplary embodiment of the present application;

[0052] FIG12 shows a flow chart of a method for determining receiver parameters provided by an exemplary embodiment of the present application;

[0053] FIG13 is a schematic diagram showing a signal transmission method provided by an exemplary embodiment of the present application;

[0054] FIG14 shows a flowchart of an information transmission method provided by an exemplary embodiment of the present application;

[0055] FIG15 shows a flowchart of an information transmission method provided by an exemplary embodiment of the present application;

[0056] FIG16 shows a block diagram of a zero-power consumption device provided by an exemplary embodiment of the present application;

[0057] FIG17 shows a block diagram of a zero-power consumption device provided by an exemplary embodiment of the present application;

[0058] FIG18 shows a block diagram of a network-side device provided by an exemplary embodiment of the present application;

[0059] FIG19 shows a block diagram of a network-side device provided by an exemplary embodiment of the present application;

[0060] FIG20 shows a block diagram of a network-side device provided by an exemplary embodiment of the present application;

[0061] FIG21 shows a schematic structural diagram of a zero-power consumption device or a network device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown 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 the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0063] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are 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 encompasses any and all possible combinations of one or more of the associated listed items.

[0064] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, 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 "at the time of" or "when" or "in response to determining."

[0065] The technical solutions described in some embodiments of the present application can be applicable to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, cellular Internet of Things system, cellular passive Internet of Things system, and can also be applied to subsequent evolution systems of 5G NR system, and can also be applied to 6G and subsequent evolution systems.

[0066] It should be understood that in some embodiments of the present application, "5G" may also be referred to as "5G NR" or "NR".

[0067] It should be understood that in the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0068] In the embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (for example, a terminal device and a network device). The present application does not limit the specific implementation method. For example, predefined can refer to information defined in a protocol.

[0069] In the embodiments of the present application, "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0070] FIG1 shows a schematic diagram of a zero-power communication system 100 provided by an exemplary embodiment of the present application. The zero-power communication system 100 includes a network device 120 and a zero-power device 140 .

[0071] The network device 120 is used to send wireless power supply signals, downlink communication signals and receive backscatter signals from the zero-power device 140 to the zero-power device 140. The zero-power device 140 is also called an ambient power enabled Internet of Things (Ambient IoT) device, which includes an energy collection module 141, a backscatter communication module 142 and a low-power computing module 143. The energy collection module 141 can collect energy carried by radio waves in space, which is used to drive the low-power computing module 143 of the zero-power device 140 and realize backscatter communication. After the zero-power device 140 obtains energy, it can receive control signaling from the network device 120 and send data to the network device 120 based on the backscattering method according to the control signaling. The sent data can come from the data stored in the zero-power device 140 itself (such as an identity or pre-written information, such as the production date, brand, manufacturer, etc. of the product).

[0072] Zero-power device 140 may also include a sensor module 144 and a memory 145. Sensor module 144 may include various sensors, and zero-power device 140 may report data collected by these sensors based on a zero-power mechanism. Memory 145 is used to store basic information (such as item identification) or obtain sensor data such as ambient temperature and humidity.

[0073] The zero-power device 140 itself does not require a battery, and at the same time, the low-power computing module 143 can perform simple signal demodulation, decoding or encoding, modulation and other simple calculation tasks. Therefore, the zero-power module only requires a very simple hardware design, making the zero-power device 140 very low in cost and small in size.

[0074] The network device 120 includes but is not limited to: cellular network devices, such as 5G / 6G network devices, base station devices; WiFi / WLAN network devices, such as access points (APs), routers, mobile access points, etc., and the mobile access point is, for example, a mobile phone.

[0075] The zero-power device 140 includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, etc. The zero-power device 140 can be at least one of a mobile phone, a tablet computer, an e-book reader, a laptop computer, a desktop computer, a television, a game console, an augmented reality (AR) terminal, a virtual reality (VR) terminal and a mixed reality (MR) terminal, a wearable device, a handle, an electronic tag and a controller, etc.

[0076] Next, the key technologies of zero-power communication are introduced:

[0077] Radio Frequency Power Harvesting

[0078] Figure 2 shows a schematic diagram of RF energy harvesting provided by related technologies. RF energy harvesting is based on the principle of electromagnetic induction, using a radio frequency (RF) module to conduct electromagnetic induction and maintain a parallel relationship with a capacitor C and a load resistor R. L By connecting to the power supply, the energy required to operate zero-power devices can be collected from electromagnetic waves in space, such as for driving low-power demodulation modules, modulation modules, sensors, and memory reading. Therefore, zero-power devices do not require traditional batteries.

[0079] Back scattering communication

[0080] Figure 3 shows a schematic diagram of the backscatter communication process provided by related art. A zero-power device 140 receives a wireless signal carrier 131 transmitted by a transmitter (TX) module 121 of a network device 120 using an amplifier (AMP) 122. It modulates the wireless signal carrier 131, loads the information to be transmitted using a logic processing module 147, and harvests radio frequency energy using an energy harvesting module 141. Zero-power device 140 radiates the modulated reflected signal 132 using an antenna 146. This information transmission process is called backscatter communication. A receiver (RX) module 123 of the network device 120 receives the modulated reflected signal 132 using a low-noise amplifier (LNA) 124. Backscatter and load modulation are closely related. Load modulation achieves this by adjusting and controlling the circuit parameters of the oscillator circuit of the zero-power device 140 according to the data stream's rhythm, causing parameters such as the electronic tag's impedance to change accordingly.

[0081] Load modulation technology mainly includes resistance load modulation and capacitance load modulation. Figure 4 shows a schematic diagram of resistance load modulation provided by related technology. In resistance load modulation, the load resistor R L The third resistor R3 is connected in parallel, and the switch S based on the binary code control is turned on or off. The on and off of the third resistor R3 will cause the voltage on the circuit to change. The load resistor R L Maintaining a parallel connection relationship with the first capacitor C1, 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. Amplitude Shift Keying (ASK) can be implemented, that is, the modulation and transmission of the signal is achieved by adjusting the amplitude of the backscattered signal of the zero-power device. Similarly, in capacitive load modulation, the resonant frequency of the circuit can be changed by turning the capacitor on and off, and frequency shift keying (FSK) can be implemented, that is, the modulation and transmission of the signal is achieved by adjusting the operating frequency of the backscattered signal of the zero-power device.

[0082] Zero-power devices use load modulation to modulate incoming signals, enabling backscatter communication. These devices offer significant advantages: they don't actively transmit signals, eliminating the need for complex RF links like power amplifiers (PAs) and RF filters. They don't actively generate high-frequency signals, eliminating the need for high-frequency crystal oscillators. Furthermore, backscatter communication allows signal transmission without consuming the device's own energy.

[0083] Extremely low power active transmission technology;

[0084] Zero-power devices can also use ultra-low-power active transmission technology. Unlike backscattering, when using ultra-low-power active transmission technology for data transmission, the device uses a relatively simple and low-power oscillator to generate the RF carrier, and then modulates the information to be transmitted onto the RF carrier. Based on current research, the power consumption of ultra-low-power active transmitters can be as low as hundreds of microwatts, thus achieving ultra-low-power data transmission.

[0085] Next, the encoding method of zero-power communication is introduced:

[0086] FIG5 is a schematic diagram of an encoding method provided by related art. The data transmitted by the electronic tag can use different forms of codes to represent binary "1" and "0". Wireless radio frequency identification systems generally use one of the following encoding methods: Not Return to Zero (NRZ) encoding, Manchester encoding, Unipolar Return to Zero (URZ) encoding, Differential Binary Phase (DBP) encoding, Miller encoding, and differential encoding. That is, different pulse signals can be used to represent 0 and 1.

[0087] ·NRZ encoding; Inverse non-return-to-zero encoding uses a high level to represent a binary "1" and a low level to represent a binary "0". Figure 5 shows a level diagram of encoding binary data: 101100101001011 using the NRZ method.

[0088] Manchester encoding: Manchester encoding is also known as split-phase coding. In Manchester encoding, a binary value is represented by a voltage level change (rising or falling) during half a bit period within the bit length. A negative transition during half a bit period represents a binary "1," and a positive transition during half a bit period represents a binary "0." Data transmission errors occur when multiple tags simultaneously transmit data bits with different values, causing the received rising and falling edges to cancel each other, resulting in an uninterrupted carrier signal throughout the entire bit length. Manchester encoding makes it impossible to have an unchanging state within the bit length. The reader can use this error to determine the specific location of the collision. Manchester encoding facilitates data transmission error detection and is commonly used for data transmission from tags to readers when using carrier load modulation or backscatter modulation. Figure 5 shows a schematic diagram of the voltage levels for binary data 101100101001011 encoded using the Manchester method.

[0089] ·URZ encoding; unipolar return-to-zero encoding: a high level in the first half of the bit period represents a binary "1", while a low level signal that lasts throughout the entire bit period represents a binary "1". Figure 5 shows a level diagram of encoding binary data: 101100101001011 using the URZ method.

[0090] DBP encoding: Differential biphase encoding uses any edge within half a bit period to represent a binary "0," while the absence of an edge represents a binary "1." Furthermore, the voltage level is inverted at the beginning of each bit period. This makes the bit beat easier for the receiver to reconstruct. Figure 5 shows the voltage levels of the binary data 101100101001011 encoded using the DBP method.

[0091] Miller coding: In Miller coding, any edge within half a bit period represents a binary "1," while a constant level throughout the next bit period represents a binary "0." The level transition at the beginning of a bit period makes it easier for the receiver to reconstruct the bit beat. Figure 5 shows the level diagram of the binary data 101100101001011 encoded using the Miller method.

[0092] Differential encoding: In differential encoding, each transmitted binary "1" causes a change in the signal level, while for a binary "0" the signal level remains unchanged.

[0093] Next, we will introduce the classification of zero-power devices:

[0094] Based on the energy source and usage of zero-power devices, zero-power devices can be divided into the following types:

[0095] Passive zero-power devices;

[0096] Zero-power devices do not require internal batteries. When they approach a network device, they are within the near field generated by the network device's antenna radiation. For example, the network device is a reader / writer in a radio frequency identification (RFID) system. Therefore, the zero-power device's antenna generates an induced current through electromagnetic induction, which drives the device's low-power chip circuitry. This enables tasks such as demodulating forward link signals and modulating reverse link signals. For backscatter links, the zero-power device can use backscatter or extremely low-power active transmission to transmit signals. Passive zero-power devices do not require internal batteries for either the forward or reverse link, making them truly zero-power devices. Passive zero-power devices do not require batteries, and their RF and baseband circuits are very simple. For example, they do not require components such as LNAs, PAs, crystal oscillators, and analog-to-digital converters (ADCs). They offer numerous advantages, including small size, light weight, very low price, and a long service life.

[0097] Semi-passive zero-power device;

[0098] Semi-passive zero-power devices lack conventional batteries. Instead, they use a radio frequency energy harvesting module to harvest radio wave energy and store it in an energy storage unit, typically a capacitor. This energy is then used to power the device's low-power chip circuitry, enabling tasks such as demodulating forward link signals and modulating backward link signals. For backscatter links, the device can transmit signals using either backscatter or extremely low-power active transmission.

[0099] Semi-passive zero-power devices require no internal batteries for either the forward or reverse link. Instead, the energy stored in the capacitors is harvested by the radio energy harvesting module, making them truly zero-power devices. They inherit many of the advantages of passive zero-power devices, including small size, light weight, very low price, and long service life.

[0100] Active zero-power devices;

[0101] Zero-power devices used in some scenarios can also be active zero-power devices, which can have built-in batteries. The battery is used to drive the low-power chip circuit of the zero-power device. This enables tasks such as demodulating forward link signals and modulating reverse link signals. However, for backscatter links, zero-power devices can use backscatter or extremely low-power active transmission to transmit signals. Therefore, the zero-power of active zero-power devices is mainly reflected in the fact that reverse link signal transmission does not consume the zero-power device's own power, but instead uses backscatter. In active zero-power devices, the built-in battery powers the RFID chip, increasing the tag's read and write distance and improving communication reliability. Therefore, they are used in scenarios with relatively high requirements for communication distance and read latency.

[0102] Next, we will introduce the classification of zero-power devices based on transmitter type:

[0103] (1) Zero-power devices based on backscattering;

[0104] These zero-power devices use backscattering, as described above, for uplink data transmission. They lack active transmitters, only backscattering transmitters. Therefore, when these zero-power devices transmit uplink data, they require network equipment to provide a carrier. These zero-power devices use backscattering based on the carrier to achieve uplink data transmission.

[0105] (2) Zero-power devices based on active transmitters;

[0106] These zero-power devices use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending uplink data, these zero-power devices can use their own active transmitters to send uplink data without the need for network equipment to provide a carrier. Examples of active transmitters suitable for zero-power devices include ultra-low-power ASK transmitters and ultra-low-power FSK transmitters. Based on current implementations, these transmitters can reduce overall power consumption to 400-600 microwatts when transmitting a 100-microwatt signal.

[0107] (3) Zero-power devices that have both backscatter and active transmitters;

[0108] These zero-power devices can support both backscatter and active transmitters. They can determine whether to use backscatter or active transmitters based on different situations (such as varying battery levels, available ambient energy), or based on network device scheduling.

[0109] Next, let’s introduce the cellular Internet of Things:

[0110] Cellular IoT is booming. The 3rd Generation Partnership Project (3GPP) has standardized IoT technologies such as NarrowBand-Internet of Things (NB-IoT), Machine-Type Communications (MTC), and RedCap. However, IoT communication needs in many scenarios remain unmet. For example:

[0111] Harsh communication environment;

[0112] Certain IoT scenarios may encounter extreme environments such as high temperature, extremely low temperature, high humidity, high voltage, high radiation, or high-speed movement. Examples include ultra-high voltage substations, high-speed train track monitoring, environmental monitoring in high-altitude cold regions, and industrial production lines. In these scenarios, existing IoT devices will not function due to the operating environment limitations of conventional power supplies. Furthermore, extreme operating environments are not conducive to IoT device maintenance, such as battery replacement.

[0113] ·Requirement for extremely small terminal form factor;

[0114] Certain IoT communication scenarios, such as food traceability, commodity distribution, and smart wearables, require terminals to be extremely small for ease of use. For example, IoT terminals used for commodity management in the distribution process often use electronic tags, which are embedded in the product packaging in a very compact form factor. Another example is lightweight wearable IoT terminals that can meet user needs while improving the user experience.

[0115] Extremely low-cost IoT communication requirements;

[0116] Many IoT communication scenarios require IoT terminal devices to be sufficiently low-cost to enhance their competitiveness compared to alternative technologies. For example, in logistics or warehousing scenarios, IoT terminal devices can be attached to each item to facilitate the management of large quantities of circulating items. Communication between the IoT terminal device and the logistics network enables precise management of the entire logistics process and lifecycle. These scenarios require IoT terminal devices to be sufficiently competitively priced.

[0117] Therefore, in order to cover these unmet IoT communication needs, cellular IoT also needs to develop ultra-low-cost, extremely small-size, battery-free / maintenance-free IoT, and zero-power IoT can just meet these needs.

[0118] Zero-power IoT, also known as Ambient IoT or passive IoT, refers to IoT devices that use various environmental energies, such as radio frequency energy, light energy, solar energy, thermal energy, and mechanical energy, to power themselves. These devices can have no energy storage capacity or very limited energy storage capacity (such as using capacitors with a capacity of tens of microfarads). Compared to existing IoT devices, Ambient IoT devices offer many advantages, including no conventional batteries, no maintenance, small size, low complexity, low cost, and a long lifespan.

[0119] Zero-power IoT can be used in at least four scenarios:

[0120] (1) Object recognition, such as logistics, production line product management, and supply chain management;

[0121] (2) Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of the working environment and natural environment;

[0122] (3) Positioning, such as indoor positioning, intelligent object search, and production line item positioning;

[0123] (4) Intelligent control, such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0124] Next, the receiver architecture of zero-power communication is introduced:

[0125] Figure 6 shows a schematic diagram of a receiver architecture provided by the related art. Figure (a) shows an RF-based extremely low-power receiver architecture (referred to as the RF-based receiver architecture), Figure (b) shows an intermediate frequency (IF)-based extremely low-power receiver architecture (referred to as the IF-based receiver architecture), and Figure (c) shows a zero-IF-based extremely low-power receiver architecture (referred to as the zero-IF-based receiver architecture).

[0126] In an RF-based receiver architecture, the RF signal (RF for short) passes through a matching network, an RF bandpass filter (BPF), an RF low-noise amplifier (LNA), an RF envelope detector, a baseband amplifier (BB AMP), a BB low-pass filter (LPF), and a 1-bit or multi-bit ADC before undergoing digital baseband processing.

[0127] In an IF-based receiver architecture, the RF signal is processed through a matching network, RF BPF, RF LNA, local oscillator (LO), mixer, intermediate frequency (IF) amplifier, IF BPF, IF envelope detector, BB amplifier, BB LPF, and a 1-bit or multi-bit ADC before undergoing digital baseband processing.

[0128] In a zero-IF receiver architecture, the RF is processed by a matching network, RF BPF, RF LNA, LO, mixer, BB AMP, BB LPF or BB BPF, and 1-bit or multi-bit ADC before digital baseband processing.

[0129] Of these three receiver architectures, the RF-based receiver architecture uses an RF BPF to obtain the target signal within the bandwidth to be received, then performs envelope detection and subsequent baseband processing. This architecture has the simplest structure and the lowest power consumption, down to several microwatts or even lower. However, due to the poor accuracy of the RF BPF, receivers using this architecture often require a wide reception bandwidth even when the target signal occupies a narrow bandwidth. This introduces more noise and interference during the reception process, resulting in poor receiver performance and, in other words, poor sensitivity.

[0130] IF-based or zero-IF receiver architectures, in addition to using an RF BPF to obtain the target signal within the received bandwidth, also downconvert the RF signal and further filter the baseband signal using an LPF to eliminate noise and interference. This results in a narrow receiver bandwidth and high performance (sensitivity). However, receivers using these architectures require an LO, which consumes 100 microwatts or more. Therefore, these receivers have relatively high power consumption. However, their absolute power consumption is very low, making them suitable for use in zero-power devices.

[0131] In some embodiments, the RF-based receiver uses an RF-based receiver architecture to directly perform detection processing on the RF without performing frequency conversion processing on the RF;

[0132] An IF-based receiver uses an IF-based receiver architecture. RF is a high-frequency signal with a center frequency within a first range. The IF-based receiver downconverts the RF to obtain an IF signal with a center frequency within a second range, where the minimum value of the first range is greater than the maximum value of the second range. Exemplarily, the high-frequency signal is a signal with a center frequency of 900 MHz or 1.8 GHz, and the IF signal is a signal with a center frequency within a range of 10 MHz to 20 MHz.

[0133] A zero-IF-based receiver uses a zero-IF-based receiver architecture. RF is a high-frequency signal with a center frequency within a first range. The zero-IF-based receiver down-converts the RF to obtain a signal with a center frequency of zero frequency. The minimum value of the first range is greater than zero frequency.

[0134] With the continuous evolution of wireless communication technology, the Internet of Things technology is applied to all aspects of production and life. Due to the requirements for power consumption, size, etc. of the Internet of Things in different scenarios, ultra-low power consumption, extremely small size, and battery-free zero-power Internet of Things has emerged. The zero-power devices in the zero-power Internet of Things may not have the same requirements for receivers in different communication scenarios or different communication processes. For example, in the scenario of smart homes, the demand for the number of zero-power devices is limited, only a few to dozens are needed, so zero-power devices with lower power consumption and longer service life are more suitable, such as zero-power devices using RF-based receivers, and RF-based receivers using RF-based extremely low-power receiver architecture;

[0135] In intelligent industrial scenarios, a greater number of zero-power devices are needed. Therefore, it is more appropriate to use zero-power devices with higher transmission efficiency. For example, zero-power devices with receivers based on intermediate frequency (IF) or zero-IF (ZIF) frequencies can be used. IF-based receivers use an extremely low-power receiver architecture based on IF, while zero-IF receivers use an extremely low-power receiver architecture based on zero IF. Both receiver types can receive signals using a narrower bandwidth, allowing more zero-power devices to communicate simultaneously within the same frequency band, resulting in higher transmission efficiency.

[0136] However, in different communication scenarios or different communication processes, the zero-power device needs to use a corresponding receiver for signal transmission. To address the above problem, an embodiment of the present application proposes a method for determining receiver parameters. FIG7 shows a flowchart of a method for determining receiver parameters provided by an exemplary embodiment of the present application. The method is performed by the zero-power device 140 and the network device 120. The method includes:

[0137] Step 710: The network device 120 broadcasts the supported zero-power device types or the allowed zero-power device types.

[0138] In some embodiments, the supported zero-power device types or the allowed access zero-power device types are determined by the network device 120 based on a communication scenario (referred to as a scenario for short).

[0139] Based on factors such as communication scenarios, performance requirements, and signal coverage, the network device 120 determines the types of zero-power devices supported or allowed to access.

[0140] Scenario 1: In scenarios such as smart homes and wearable devices, the demand for the number of zero-power devices 140 is relatively small, and users pay more attention to the user experience. For example, the zero-power device 140 can be powered in a shorter time so that the zero-power device 140 can perform functions such as communication or positioning. When the supported receiver is an RF-based receiver, the power supply can be completed in a shorter time due to lower power consumption. For example, when using a mobile phone to wirelessly power the zero-power device 140, it is generally necessary to trigger the mobile phone to wirelessly power the zero-power device 140 by opening an application when communicating with the zero-power device 140. If the zero-power device 140 consumes less power during operation, the power supply time of the mobile phone can be reduced, thereby reducing the energy consumption of the mobile phone.

[0141] On the other hand, although RF-based receivers have low sensitivity and low transmission efficiency, due to the wireless power supply method, the sensitivity of -20 decibels to -35 decibels is already the current implementation bottleneck, while RF-based receivers can achieve a sensitivity of -35 decibels to -50 decibels. Moreover, in scenarios such as smart homes where the number of zero-power devices 140 is limited, the lower transmission efficiency does not affect the user experience.

[0142] Scenario 2: In scenarios such as industrial intelligence or intelligent control, a large number of zero-power devices 140 are required for environmental monitoring, production line monitoring, and asset inventory. In these scenarios, the number of zero-power devices 140 is large, so it is necessary to provide as high a throughput as possible to complete communication with the zero-power devices 140. For these scenarios, the zero-power devices 140 support intermediate frequency (IF)-based receivers or zero-IF-based receivers. These receivers have high sensitivity and can receive signals using a narrower reception bandwidth. Therefore, more zero-power devices 140 can communicate simultaneously within the same frequency band, thereby improving transmission efficiency.

[0143] Scenario 3: In some scenarios, the number of zero-power devices 140 required varies. For example, in a warehouse, the number of zero-power devices 140 required is high, while when goods are delivered from the warehouse to a supermarket, the number of zero-power devices 140 required is low. Therefore, for these scenarios, zero-power devices 140 support two types of receivers: RF-based receivers and intermediate frequency (zero-IF)-based receivers. The network device 120 can notify the zero-power device 140 which receiver to use based on the specific scenario.

[0144] In some embodiments, supported zero-power device types or allowed access zero-power device types are broadcasted by sending a broadcast signal or a beacon frame signal.

[0145] Based on the supported zero-power device types or the zero-power device types allowed to access broadcast by the network device 120, only the zero-power device 140 of the corresponding zero-power device type can access, or the zero-power device 140 can adjust the receiver used to match the zero-power device type supported by the network device 120 or the zero-power device type allowed to access.

[0146] Step 720: The zero-power consumption device 140 sends first information.

[0147] The first information includes receiver capability information or receiver parameter information of the zero-power consumption device 140 .

[0148] In some embodiments, the receiver capability information or the receiver parameter information includes at least one of the following:

[0149] First capability information;

[0150] Second capability information;

[0151] The first capability information is information for indicating the type of the receiver, and the second capability information is information for indicating the receiving bandwidth, where the receiving bandwidth indicates the bandwidth of the receiver for receiving signals.

[0152] In some embodiments, the first capability information indicates information about receiver types supported by the zero-power consumption device 140 , and the second capability information indicates information about a bandwidth for receiving signals.

[0153] In some embodiments, the first capability information includes at least one of the following:

[0154] RF-based receiver information;

[0155] IF-based receiver information;

[0156] Zero-IF based receiver information.

[0157] In some embodiments, the zero-power device 140 supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. This embodiment of the present application is not limited to this.

[0158] In some embodiments, the second capability information includes at least one of the following:

[0159] First bandwidth value;

[0160] Second bandwidth value;

[0161] First multiple of the channel bandwidth;

[0162] Second multiple of the channel bandwidth;

[0163] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0164] In some embodiments, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. Exemplarily, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0165] In some embodiments, step 720 is executed before step 710. The embodiment of the present application does not limit the execution order of step 710 and step 720, and is described by taking the example of executing step 710 first and then executing step 720.

[0166] Step 730 : The network device 120 determines receiver parameters used by the zero-power device 140 .

[0167] The receiver parameters include receiver type and / or receiving bandwidth.

[0168] In some embodiments, the network device 120 determines the receiver type and / or reception bandwidth used by the zero-power device 140 based on the communication scenario. For example, in a smart home scenario, it is determined that the zero-power device 140 uses an RF-based receiver with a reception bandwidth of 4 channel bandwidths.

[0169] Step 740: The network device 120 sends a notification message.

[0170] In some embodiments, the zero-power consumption device 140 supports at least two receivers, or the zero-power consumption device 140 supports at least two receiver parameters, and the notification message is used to indicate the receiver parameters.

[0171] In some embodiments, the notification message is sent by the network device 140 based on the communication scenario.

[0172] In some embodiments, the notification message is a first notification message;

[0173] The first notification message is used to notify the zero-power consumption device 140 to use first receiver parameters, where the first receiver parameters include a first receiver type and / or a first receiving bandwidth.

[0174] In some embodiments, the first receiver type is an RF-based receiver type.

[0175] The first notification message is sent by the network device 120 in a communication scenario where the required number of zero-power devices 140 is less than a first threshold. The first threshold is determined or predefined based on the communication protocol. For example, the first notification message is sent in a smart home scenario to notify the zero-power device 140 to use an RF-based receiver, and the first receiving bandwidth is 4 channel bandwidths.

[0176] In some embodiments, the notification message is a second notification message;

[0177] The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

[0178] In some embodiments, the second receiver type is an intermediate frequency based receiver type or a zero intermediate frequency based receiver type.

[0179] The second notification message is sent by the network device 120 in a communication scenario where the demand quantity of zero-power-consumption devices 140 is greater than a second threshold value. The second threshold value is determined or predefined based on the communication protocol. For example, the second notification message is sent in an industrial intelligent scenario to notify the zero-power-consumption device 140 to use an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths.

[0180] Step 750 : The zero-power consumption device 140 determines receiver parameters used by the zero-power consumption device 140 .

[0181] The receiver parameters include receiver type and / or receiving bandwidth.

[0182] In some embodiments, the zero-power device 140 supports at least two receivers, or the zero-power device 140 supports at least two receiver parameters; the receiver parameters are determined based on the notification message sent by the network device 120 .

[0183] In some embodiments, the notification message is sent by the network device 120 based on the communication scenario.

[0184] For specific implementation details, please refer to step 740 and will not be repeated here.

[0185] In some embodiments, the zero-power device 140 supports at least two receivers, or the zero-power device 140 supports at least two receiver parameters; the receiver parameters are determined based on the communication process.

[0186] The communication process includes: cell search, beacon frame signal scanning, data communication and other processes.

[0187] In some embodiments, when the communication process is a first communication process, it is determined that the zero-power consumption device 140 uses a first receiver parameter;

[0188] The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

[0189] Exemplarily, in a case where the communication process is a cell search, it is determined that the zero-power consumption device 140 uses an RF-based receiver, and the first receiving bandwidth is 4 channel bandwidths.

[0190] In some embodiments, when the communication process is the second communication process, determining that the zero-power consumption device 140 uses the second receiver parameter;

[0191] The second communication process includes a data communication process, and the second receiver parameter includes a second receiver type and / or a second receiving bandwidth.

[0192] Exemplarily, in the case that the communication process is data communication, it is determined that the zero-power consumption device 140 uses an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths.

[0193] In this embodiment, step 710, step 720, step 730, and step 740 are optional. In different embodiments, one or more of these steps may be omitted or replaced, for example, step 710 may be omitted and execution may start from step 720.

[0194] Step 720 and step 750 can be implemented as independent embodiments; step 710, step 720 and step 750 can be implemented as independent embodiments; step 730, step 740 and step 750 can be implemented as independent embodiments; step 720, step 730, step 740 and step 750 can be implemented as independent embodiments; step 710, step 730, step 740 and step 750 can be implemented as independent embodiments; but are not limited to this.

[0195] Step 710 may be implemented as an independent embodiment, such as being implemented separately as a broadcast method of a zero-power device type;

[0196] Step 720 may be implemented as an independent embodiment, such as being implemented separately as an information sending method;

[0197] Step 730 may be implemented as an independent embodiment, for example, implemented separately as a receiver parameter determination method;

[0198] Step 740 may be implemented as an independent embodiment, such as being implemented separately as an information sending method;

[0199] Step 750 may be implemented as an independent embodiment, for example, implemented separately as a receiver parameter determination method.

[0200] To sum up, the method provided in this embodiment determines the receiver parameters used by the zero-power device, and the receiver parameters include the receiver type and / or receiving bandwidth, so as to determine the receiver parameters corresponding to different scenarios in different scenarios, meet the actual needs, and improve the flexibility of using zero-power devices.

[0201] The method provided in this embodiment also reduces the energy consumption of the zero-power device by using the RF-based receiver.

[0202] The method provided in this embodiment also improves the transmission efficiency of the zero-power consumption device by using the zero-power consumption device with an intermediate frequency-based receiver or a zero-intermediate frequency-based receiver.

[0203] The method provided in this embodiment further sends first information through the zero-power device, where the first information includes receiver capability information or receiver parameter information of the zero-power device, thereby determining the receiver type and / or receiving bandwidth used by the zero-power device.

[0204] The method provided in this embodiment also broadcasts the supported zero-power device types or the allowed access zero-power device types through the network device, so that the zero-power device of the corresponding zero-power device type can be accessed, or the zero-power device adjusts the receiver used to match the zero-power device type supported by the network device or the zero-power device type allowed to be accessed.

[0205] FIG8 shows a flowchart of a method for determining receiver parameters provided by an exemplary embodiment of the present application. The method is performed by a zero-power consumption device, and the method includes:

[0206] Step 810: Determine receiver parameters used by the zero-power device.

[0207] The receiver parameters include receiver type and / or receiving bandwidth.

[0208] In some embodiments, the receiver type indicates the type of receiver architecture used by the zero-power device, such as an RF-based receiver or an intermediate frequency (zero intermediate frequency)-based receiver; the receiving bandwidth indicates the bandwidth used to receive signals.

[0209] In some embodiments, the zero-power device supports at least two receivers, or the zero-power device supports at least two receiver parameters; the receiver parameters are determined based on the notification message sent by the network device.

[0210] In some embodiments, the notification message is sent by the network device based on the communication scenario.

[0211] Exemplarily, the network device sends a first notification message in a communication scenario such as a smart home scenario where the demand for a small number of zero-power devices is small; and sends a second notification message in a communication scenario such as industrial intelligence where the demand for a large number of zero-power devices is large.

[0212] In some embodiments, the notification message is a first notification message;

[0213] The first notification message is used to notify the zero-power consumption device to use first receiver parameters, where the first receiver parameters include a first receiver type and / or a first receiving bandwidth.

[0214] In some embodiments, the first receiver type is an RF-based receiver type.

[0215] The first notification message is sent by the network device in a communication scenario where the required number of zero-power devices is less than a first threshold. The first threshold is determined or predefined based on the communication protocol. For example, the first notification message is sent in a smart home scenario to notify the zero-power device to use an RF-based receiver, and the first receiving bandwidth is 4 channel bandwidths.

[0216] In some embodiments, the notification message is a second notification message;

[0217] The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

[0218] In some embodiments, the second receiver type is an intermediate frequency based receiver type or a zero intermediate frequency based receiver type.

[0219] The second notification message is sent by the network device in a communication scenario where the number of zero-power devices required is greater than a second threshold. The second threshold is determined or predefined based on the communication protocol. For example, the second notification message is sent in an industrial intelligence scenario to notify the zero-power device to use an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths.

[0220] In some embodiments, when the zero-power consumption device uses the first receiver parameter, the downlink signal sent by the network device is received.

[0221] Zero-power devices use different receiver types and have different requirements for the network, such as different receiving bandwidths. When using an RF-based receiver, the receiving bandwidth is larger, for example, the receiving bandwidth is M channel bandwidths. When the channel bandwidth is 250kHz and M=8, the receiving bandwidth is 2MHz. This requires that when the network device sends a downlink signal (for example, the downlink signal is sent within a channel and occupies a bandwidth of no more than 250kHz), there cannot be any signal sent to other zero-power devices within the 2MHz receiving bandwidth of the zero-power device. That is to say, within the 2MHz receiving bandwidth, although the downlink signal sent by the network device only occupies a bandwidth of no more than 250kHz, the remaining bandwidth cannot send downlink signals to other zero-power devices or other devices.

[0222] FIG9 shows a schematic diagram of the receiving bandwidth provided by an exemplary embodiment of the present application. The receiving bandwidth is 8 channel bandwidths, occupying a total of 8 channels from channel 7 to channel 14, of which channel 11 is an available channel for sending downlink signals, and the other 7 channels are protection bands and do not send other signals. This is because zero-power devices generally use simpler downlink signal waveforms. If other signals are transmitted within this bandwidth, the downlink signal of the zero-power device will be interfered with and cannot be demodulated. Receivers based on intermediate frequencies or receivers based on zero intermediate frequencies only require a relatively narrow receiving bandwidth, for example, only the bandwidth of one channel, or the bandwidth of N channels, N = 1, 2, 3. Where N <M。

[0223] In some embodiments, when a zero-power device supporting at least two receivers communicates with a network device, the method adopted includes at least one of the following:

[0224] (1) The zero-power device sends receiver type information and / or receiving bandwidth information (e.g., a value of the receiving bandwidth, which is a multiple of the channel bandwidth) to the network device;

[0225] In some embodiments, the zero-power consumption device sends first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0226] In some embodiments, the receiver capability information or the receiver parameter information includes at least one of the following:

[0227] First capability information;

[0228] Second capability information;

[0229] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0230] In some embodiments, the first capability information indicates information about receiver types supported by the zero-power device, and the second capability information indicates information about a bandwidth for receiving signals.

[0231] In some embodiments, the first capability information includes at least one of the following:

[0232] RF-based receiver information;

[0233] IF-based receiver information;

[0234] Zero-IF based receiver information.

[0235] In some embodiments, the zero-power device supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. The embodiments of the present application are not limited to this.

[0236] In some embodiments, the second capability information includes at least one of the following:

[0237] First bandwidth value;

[0238] Second bandwidth value;

[0239] First multiple of the channel bandwidth;

[0240] Second multiple of the channel bandwidth;

[0241] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0242] In some embodiments, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. Exemplarily, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0243] (2) Based on different communication scenarios, the network device only supports zero-power devices of a specified receiver type, and only uses zero-power devices of that receiver type within the signal coverage range of the network device.

[0244] In some embodiments, the network device broadcasts the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0245] Based on the supported zero-power device types or the allowed access zero-power device types broadcast by the network device, only zero-power devices of the corresponding zero-power device types can be connected, or the zero-power device can adjust the receiver used to match the zero-power device types supported by the network device or the allowed access zero-power device types.

[0246] In some embodiments, after receiving the downlink signal, the zero-power device sends an uplink signal to the network device.

[0247] In some embodiments, when different receiver parameters are used, the bandwidths occupied by uplink signals are the same or different.

[0248] For example, for a zero-power device that supports an RF-based receiver, its receiving bandwidth is 8 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; for a zero-power device that supports an intermediate frequency-based receiver, its receiving bandwidth is 1 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; that is, when using the two receiver parameters, the bandwidth occupied by the uplink signal is the same.

[0249] In some embodiments, the zero-power device supports at least two receivers, or the zero-power device supports at least two receiver parameters; the receiver parameters are determined based on the communication process.

[0250] The communication process includes: cell search, beacon frame signal scanning, data communication and other processes.

[0251] In some embodiments, when the communication process is a first communication process, determining that the zero-power consumption device uses a first receiver parameter;

[0252] The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

[0253] For example, when the communication process is a cell search, it is determined that the zero-power device uses an RF-based receiver and the first receiving bandwidth is 4 channel bandwidths. Since the cell search generally lasts for a period of time, using an RF-based receiver is beneficial for saving power.

[0254] In some embodiments, when the communication process is a second communication process, determining that the zero-power consumption device uses a second receiver parameter;

[0255] The second communication process includes a data communication process, and the second receiver parameter includes a second receiver type and / or a second receiving bandwidth.

[0256] For example, when the communication process is data communication, it is determined that the zero-power device uses an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths. During data communication, using an intermediate frequency (zero intermediate frequency)-based receiver can improve transmission efficiency.

[0257] Figure 10 shows a schematic diagram of a channel division method provided by an exemplary embodiment of the present application. In the 920MHz to 925MHz frequency band, based on the communication protocol of the relevant region, a total of 20 channels are divided in this frequency band, and each channel occupies a bandwidth of 250kHz. When zero-power devices are deployed in this frequency band, both network devices and the transmission of zero-power devices need to comply with this channel division method. In order to ensure support for different receivers, a new division method can be set on this basis.

[0258] In some embodiments, when the zero-power device uses the first receiver parameter, a downlink signal sent by a network device through a channel in a channel group is received, where the channel group includes at least two channels; or

[0259] When the zero-power consumption device uses the first receiver parameter, the downlink signal is received through the channel corresponding to the first receiving bandwidth.

[0260] In some embodiments, the bandwidth of the channel group is a first multiple of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of a channel.

[0261] In some embodiments, the channel is a channel determined based on a communication protocol for transmitting downlink signals, and the channel bandwidth of the channel is determined based on the communication protocol.

[0262] Exemplarily, in the new division method, the frequency band includes X channel groups, each of which includes M first channels. The first channel is a channel used to transmit downlink signals, determined based on the communication protocol. For example, X = 4, M = 5, and X can be an odd or even number. In this case, downlink signals are transmitted based on the bandwidth of the channel group, and the bandwidth of the channel group is a first multiple of the channel bandwidth of the first channel.

[0263] Alternatively, the frequency band includes X second channels, and the channel bandwidth of the second channels is M times the channel bandwidth of the first channel, for example, X=4, M=5, and X can be an odd number or an even number. In this case, the downlink signal is transmitted according to the channel bandwidth of the second channel, and the channel bandwidth of the second channel is a first multiple of the channel bandwidth of the first channel.

[0264] In some embodiments, channels other than one channel in the channel group do not transmit downlink signals; or,

[0265] The channels other than one channel in the channel group send placeholder signals.

[0266] When the network device sends a downlink signal to the zero-power device, the downlink signal is sent only through the first channel, and other channels except the first channel do not send downlink signals or send placeholder signals.

[0267] In some embodiments, the channel used to send the downlink signal is a channel located at the center of the channel group; or,

[0268] The channel used to transmit the downlink signal is one of the two channels located at the center of the channel group.

[0269] When the number of channels included in the channel group is odd, the channel used to send the downlink signal is the channel located most centrally in the channel group; when the number of channels included in the channel group is even, the channel used to send the downlink signal is one of the two channels located most centrally in the channel group.

[0270] Exemplarily, the second channel includes five channels, and the first channel (the channel for sending downlink signals) is the centralmost channel (the third channel); or, in the case where the second channel includes four channels, the first channel is one of the two centralmost channels (the second channel or the third channel).

[0271] When X = 2, each second channel occupies 2.5MHz of bandwidth and contains M = 10 first channels. The network device can send downlink signals on the fifth or sixth channel. Similarly, when X = 1, M = 20; when X = 5, M = 4.

[0272] In some embodiments, when the zero-power consumption device uses the second receiver parameter, the downlink signal sent by the network device is received.

[0273] In some embodiments, when the zero-power device uses the second receiver parameter, a downlink signal sent by the network device through a channel in a channel group is received, where the channel group includes at least one channel; or

[0274] When the zero-power consumption device uses the second receiver parameters, the downlink signal is received through the channel corresponding to the second receiving bandwidth.

[0275] In some embodiments, the bandwidth of the channel group is a multiple of the second multiple of the channel bandwidth of one channel; or, the channel bandwidth corresponding to the second receiving bandwidth is a multiple of the second multiple of the channel bandwidth of one channel.

[0276] For example, for a zero-power device that supports an intermediate frequency-based receiver, 20 second channels are included in the 920MHz to 925MHz frequency band, and each second channel occupies a bandwidth of 250kHz. At this time, the second channel is equal to the first channel, and it can also be considered that there is no additional division of the second channel.

[0277] Alternatively, the frequency band includes 10 second channels, each of which includes 2 first channels. In this case, the network device can send downlink signals in the first or second channel.

[0278] In some embodiments, the network device sends a downlink signal on a third channel, and a channel bandwidth of the third channel is determined based on a maximum receiving capability supported by the receiver.

[0279] For example, in the 1.8 GHz band or the 2.6 GHz band, the third channel has a channel bandwidth of 2 MHz, and the downlink signal is not limited to being sent within the range of 250 kHz, but only needs to be sent within the range of 2 MHz.

[0280] To sum up, the method provided in this embodiment determines the receiver parameters used by the zero-power device, and the receiver parameters include the receiver type and / or receiving bandwidth, so as to determine the receiver parameters corresponding to different scenarios in different scenarios, meet the actual needs, and improve the flexibility of using zero-power devices.

[0281] The method provided in this embodiment also reduces the energy consumption of the zero-power device by using the RF-based receiver.

[0282] The method provided in this embodiment also improves the transmission efficiency of the zero-power consumption device by using the zero-power consumption device with an intermediate frequency-based receiver or a zero-intermediate frequency-based receiver.

[0283] The method provided in this embodiment further sends first information through the zero-power device, where the first information includes receiver capability information or receiver parameter information of the zero-power device, thereby determining the receiver type and / or receiving bandwidth used by the zero-power device.

[0284] FIG11 shows a flowchart of an information transmission method provided by an exemplary embodiment of the present application. The method is performed by a zero-power consumption device, and the method includes:

[0285] Step 1110: Send the first message.

[0286] The first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0287] In some embodiments, the receiver capability information or the receiver parameter information includes at least one of the following:

[0288] First capability information;

[0289] Second capability information;

[0290] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0291] In some embodiments, the first capability information includes at least one of the following:

[0292] RF-based receiver information;

[0293] IF-based receiver information;

[0294] Zero-IF based receiver information.

[0295] In some embodiments, the second capability information includes at least one of the following:

[0296] First bandwidth value;

[0297] Second bandwidth value;

[0298] First multiple of the channel bandwidth;

[0299] Second multiple of the channel bandwidth;

[0300] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

[0301] For specific implementation details, please refer to the first information part of the embodiment of Figure 8 and will not be repeated here.

[0302] In summary, the method provided in this embodiment sends first information through a zero-power device, where the first information includes receiver capability information or receiver parameter information of the zero-power device, thereby determining the receiver type and / or receiving bandwidth used by the zero-power device.

[0303] FIG12 shows a flowchart of a method for determining receiver parameters provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0304] Step 1210: Determine receiver parameters used by the zero-power device.

[0305] In some embodiments, the receiver parameters include receiver type and / or reception bandwidth.

[0306] In some embodiments, the zero-power device supports at least two receivers, or the zero-power device supports at least two receiver parameters;

[0307] The network device sends a notification message to the zero-power device, where the notification message is used to indicate receiver parameters.

[0308] In some embodiments, the notification message is sent by the network device based on the communication scenario.

[0309] In some embodiments, the notification message is a first notification message;

[0310] The first notification message is used to notify the zero-power consumption device to use first receiver parameters, where the first receiver parameters include a first receiver type and / or a first receiving bandwidth.

[0311] In some embodiments, the notification message is a second notification message;

[0312] The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

[0313] In some embodiments, the zero-power device supports at least two receivers, or the zero-power device supports at least two receiver parameters; the receiver parameters are determined based on the communication process.

[0314] In some embodiments, when the communication process is a first communication process, determining that the zero-power consumption device uses a first receiver parameter;

[0315] The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

[0316] In some embodiments, when the communication process is a second communication process, determining that the zero-power consumption device uses a second receiver parameter;

[0317] The second communication process includes a data communication process, and the second receiver parameter includes a second receiver type and / or a second receiving bandwidth.

[0318] In some embodiments, the first receiver type is an RF-based receiver type.

[0319] In some embodiments, the second receiver type is an intermediate frequency based receiver type or a zero intermediate frequency based receiver type.

[0320] In some embodiments, the downlink signal is sent when the zero-power consumption device uses the first receiver parameter.

[0321] In some embodiments, when the zero-power device uses the first receiver parameter, the downlink signal is sent through a channel in a channel group, where the channel group includes at least two channels; or

[0322] When the zero-power consumption device uses the first receiver parameter, the downlink signal is sent through the channel corresponding to the first receiving bandwidth.

[0323] In some embodiments, the bandwidth of the channel group is a first multiple of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of a channel.

[0324] In some embodiments, the downlink signal is sent when the zero-power device uses the second receiver parameters.

[0325] In some embodiments, when the zero-power device uses the second receiver parameter, the downlink signal is sent through a channel in a channel group, where the channel group includes at least one channel; or

[0326] When the zero-power consumption device uses the second receiver parameters, the downlink signal is sent through the channel corresponding to the second receiving bandwidth.

[0327] In some embodiments, the bandwidth of the channel group is a multiple of the second multiple of the channel bandwidth of one channel; or, the channel bandwidth corresponding to the second receiving bandwidth is a multiple of the second multiple of the channel bandwidth of one channel.

[0328] In some embodiments, the channel is a channel determined based on a communication protocol for transmitting downlink signals, and the channel bandwidth of the channel is determined based on the communication protocol.

[0329] In some embodiments, channels other than one channel in the channel group do not transmit downlink signals; or,

[0330] The channels other than one channel in the channel group send placeholder signals.

[0331] In some embodiments, the channel used to send the downlink signal is a channel located at the center of the channel group; or,

[0332] The channel used to transmit the downlink signal is one of the two channels located at the center of the channel group.

[0333] In some embodiments, the network device receives an uplink signal sent by the zero-power device.

[0334] In some embodiments, when different receiver parameters are used, the bandwidths occupied by uplink signals are the same or different.

[0335] In some embodiments, the network device broadcasts supported zero-power device types or allowed access zero-power device types.

[0336] In some embodiments, the supported zero-power device types or the allowed access zero-power device types are determined by the network device based on the communication scenario.

[0337] In some embodiments, the network device broadcasts the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0338] For specific implementation details, please refer to step 710 of the embodiment of Figure 7, which will not be repeated here.

[0339] In some embodiments, the network device transmits a common signal;

[0340] Among them, the public signal is used for the zero-power device to perform cell search or beacon frame scanning, and the public signal includes a synchronization signal, a broadcast signal, or a beacon frame signal.

[0341] To ensure that the zero-power device can use an RF-based receiver when performing cell searches or beacon frame scanning, the network device needs to consider the reception bandwidth of the RF-based receiver when sending synchronization signals, broadcast signals, or beacon frame signals. According to the above embodiment, this reception bandwidth is generally large and may be greater than the channel bandwidth, for example, M times the channel bandwidth, where M is a positive integer.

[0342] In some embodiments, the common signal is sent in a downlink channel, and the bandwidth occupied by the downlink channel is less than or equal to the bandwidth of one channel.

[0343] In some embodiments, the network device transmits only the common signal within a first bandwidth centered on a downstream channel;

[0344] The first bandwidth is greater than or equal to a receiving bandwidth of the zero-power consumption device.

[0345] Figure 13 shows a schematic diagram of a signal transmission method provided by an exemplary embodiment of the present application. When a network device sends a public signal, the public signal is sent within a downlink channel (occupying a bandwidth no greater than one channel bandwidth), and within a first bandwidth centered on the public signal (the first bandwidth is greater than or equal to the receiving bandwidth), the network device cannot send other downlink signals except the public signal. At other times besides sending the public signal, other downlink signals can be transmitted on all channels.

[0346] In some embodiments, when operating in an unlicensed frequency band, the network device also needs to occupy the first bandwidth to ensure that other devices do not transmit signals within the first bandwidth during the transmission of the public signal. For example, before transmitting the public signal, the network device may transmit a placeholder signal (preamble) in all channels within the first bandwidth, indicating the duration of the occupancy (which duration is not less than the transmission duration of the public signal). Alternatively, when other network devices detect the public signal, they do not transmit any signals within the first bandwidth corresponding to the public signal.

[0347] In some embodiments, the network device receives first information sent by the zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0348] In some embodiments, the receiver capability information or the receiver parameter information includes at least one of the following:

[0349] First capability information;

[0350] Second capability information;

[0351] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0352] In some embodiments, the first capability information includes at least one of the following:

[0353] RF-based receiver information;

[0354] IF-based receiver information;

[0355] Zero-IF based receiver information.

[0356] In some embodiments, the second capability information includes at least one of the following:

[0357] First bandwidth value;

[0358] Second bandwidth value;

[0359] First multiple of the channel bandwidth;

[0360] Second multiple of the channel bandwidth;

[0361] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

[0362] The specific implementation details of the above receiver parameter determination method refer to the zero-power device side and will not be repeated here.

[0363] To sum up, the method provided in this embodiment determines the receiver parameters used by the zero-power device, and the receiver parameters include the receiver type and / or receiving bandwidth, so as to determine the receiver parameters corresponding to different scenarios in different scenarios, meet the actual needs, and improve the flexibility of using zero-power devices.

[0364] The method provided in this embodiment also reduces the energy consumption of the zero-power consumption device by notifying the zero-power consumption device to use an RF-based receiver.

[0365] The method provided in this embodiment further improves the transmission efficiency of the zero-power-consumption device by notifying the zero-power-consumption device to use an intermediate frequency-based receiver or a zero intermediate frequency-based receiver.

[0366] The method provided in this embodiment also determines the receiver type and / or receiving bandwidth used by the zero-power consumption device by receiving first information sent by the zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0367] The method provided in this embodiment also broadcasts the supported zero-power device types or the allowed access zero-power device types through the network device, so that the zero-power device of the corresponding zero-power device type can be accessed, or the zero-power device adjusts the receiver used to match the zero-power device type supported by the network device or the zero-power device type allowed to be accessed.

[0368] FIG14 shows a flowchart of an information transmission method provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0369] Step 1410: Receive first information sent by a zero-power consumption device.

[0370] In some embodiments, the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0371] In some embodiments, the receiver capability information or the receiver parameter information includes at least one of the following:

[0372] First capability information;

[0373] Second capability information;

[0374] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0375] In some embodiments, the first capability information includes at least one of the following:

[0376] RF-based receiver information;

[0377] IF-based receiver information;

[0378] Zero-IF based receiver information.

[0379] In some embodiments, the second capability information includes at least one of the following:

[0380] First bandwidth value;

[0381] Second bandwidth value;

[0382] First multiple of the channel bandwidth;

[0383] Second multiple of the channel bandwidth;

[0384] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

[0385] The specific implementation details of the above information transmission method refer to the zero-power device side and will not be repeated here.

[0386] In summary, the method provided in this embodiment receives first information sent by a zero-power device, where the first information includes receiver capability information or receiver parameter information of the zero-power device, thereby determining the receiver type and / or receiving bandwidth used by the zero-power device.

[0387] FIG15 shows a flowchart of an information transmission method provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0388] Step 1510: Broadcast supported zero-power device types or allowed access zero-power device types.

[0389] In some embodiments, the network device broadcasts supported zero-power device types or allowed access zero-power device types.

[0390] In some embodiments, the supported zero-power device types or the allowed access zero-power device types are determined by the network device based on the communication scenario.

[0391] In some embodiments, the network device broadcasts the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0392] The specific implementation details of the above information transmission method refer to the embodiment of Figure 13 and will not be repeated here.

[0393] To sum up, the method provided in this embodiment broadcasts the supported zero-power device types or the zero-power device types allowed to access, so that the zero-power device of the corresponding zero-power device type can be accessed, or the zero-power device adjusts the receiver used to match the zero-power device type supported by the network device or the zero-power device type allowed to access.

[0394] In the above embodiments, steps with the same sequence number can be considered to be the same step. Among them, the embodiment corresponding to Figure 7, the embodiment corresponding to Figure 8, the embodiment corresponding to Figure 11, the embodiment corresponding to Figure 12, the embodiment corresponding to Figure 14, and the embodiment corresponding to Figure 15 can be implemented separately or in combination, and this application does not limit this.

[0395] Figure 16 shows a block diagram of a zero-power device provided by an exemplary embodiment of the present application. The device can be implemented as a zero-power device or as a part of a zero-power device through software or hardware or a combination of both. The device includes a determination module 1610, a receiving module 1620 and a sending module 1630, wherein the function of the determination module 1610 is implemented by a processor in the zero-power device, the receiving module 1620 is implemented by a receiver in the zero-power device, and the sending module 1630 is implemented by a transmitter in the zero-power device.

[0396] The determination module 1610 is configured to determine receiver parameters used by the apparatus, where the receiver parameters include a receiver type and / or a receiving bandwidth.

[0397] In a possible design of this embodiment, the receiver type indicates the type of receiver architecture used by the zero-power device, such as an RF-based receiver or an intermediate frequency (zero intermediate frequency)-based receiver; the receiving bandwidth indicates the bandwidth used to receive signals.

[0398] In a possible design of this embodiment, the zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; the receiver parameters are determined based on a notification message sent by the network-side device.

[0399] In a possible design of this embodiment, the notification message is sent by the network-side device based on the communication scenario.

[0400] Exemplarily, the network-side device sends a first notification message in a communication scenario such as a smart home scenario where the demand for a small number of zero-power devices is small; and sends a second notification message in a communication scenario such as industrial intelligence where the demand for a large number of zero-power devices is large.

[0401] In a possible design of this embodiment, the notification message is a first notification message;

[0402] The first notification message is used to notify the device to use first receiver parameters, where the first receiver parameters include a first receiver type and / or a first receiving bandwidth.

[0403] In one possible design of this embodiment, the first receiver type is an RF-based receiver type.

[0404] The first notification message is sent by the network side device in a communication scenario where the required number of zero-power devices is less than a first threshold. The first threshold is determined or predefined based on the communication protocol. For example, the first notification message is sent in a smart home scenario to notify the zero-power device to use an RF-based receiver, and the first receiving bandwidth is 4 channel bandwidths.

[0405] In a possible design of this embodiment, the notification message is a second notification message;

[0406] The second notification message is used to notify the device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

[0407] In a possible design of this embodiment, the second receiver type is an intermediate frequency-based receiver type or a zero intermediate frequency-based receiver type.

[0408] The second notification message is sent by the network side device in a communication scenario where the required number of zero-power devices is greater than a second threshold. The second threshold is determined or predefined based on the communication protocol. For example, the second notification message is sent in an industrial intelligent scenario to notify the zero-power device to use an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths.

[0409] In a possible design of this embodiment, the receiving module 1620 is used to receive a downlink signal sent by the network side device when the zero-power device uses the first receiver parameters.

[0410] Zero-power devices use different receiver types and have different requirements for the network, such as different receiving bandwidths. When using an RF-based receiver, the receiving bandwidth is larger, for example, the receiving bandwidth is M channel bandwidths. When the channel bandwidth is 250kHz and M=8, the receiving bandwidth is 2MHz. This requires that when the network-side device sends a downlink signal (for example, the downlink signal is sent within a channel and occupies a bandwidth of no more than 250kHz), no signal can be sent to other zero-power devices within the 2MHz receiving bandwidth of the zero-power device. That is to say, within the 2MHz receiving bandwidth, although the downlink signal sent by the network-side device only occupies a bandwidth of no more than 250kHz, the remaining bandwidth cannot send downlink signals to other zero-power devices or other devices.

[0411] As shown in Figure 9, the receiving bandwidth is 8 channel bandwidths, occupying 8 channels from channel 7 to channel 14, of which channel 11 is an available channel for sending downlink signals, and the other 7 channels are protection bands and do not send other signals. This is because zero-power devices generally use relatively simple downlink signal waveforms. If other signals are transmitted within this bandwidth, the downlink signal of the zero-power device will be interfered with and cannot be demodulated. Receivers based on intermediate frequency or zero intermediate frequency only require a relatively narrow receiving bandwidth, for example, only the bandwidth of one channel, or the bandwidth of N channels, N = 1, 2, 3. Where N <M。

[0412] In one possible design of this embodiment, when the zero-power consumption device supporting at least two receivers communicates with the network-side device, the method adopted includes at least one of the following:

[0413] (1) The zero-power device sends receiver type information and / or receiving bandwidth information (e.g., the value of the receiving bandwidth, which is a multiple of the channel bandwidth) to the network-side device;

[0414] In a possible design of this embodiment, the sending module 1630 is used to send first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0415] In one possible design of this embodiment, the receiver capability information or the receiver parameter information includes at least one of the following:

[0416] First capability information;

[0417] Second capability information;

[0418] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0419] In a possible design of this embodiment, the first capability information indicates information about receiver types supported by the zero-power device, and the second capability information indicates information about a bandwidth used to receive signals.

[0420] In one possible design of this embodiment, the first capability information includes at least one of the following:

[0421] RF-based receiver information;

[0422] IF-based receiver information;

[0423] Zero-IF based receiver information.

[0424] In one possible design of this embodiment, the zero-power device supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. This embodiment of the present application is not limited to this.

[0425] In one possible design of this embodiment, the second capability information includes at least one of the following:

[0426] First bandwidth value;

[0427] Second bandwidth value;

[0428] First multiple of the channel bandwidth;

[0429] Second multiple of the channel bandwidth;

[0430] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0431] In one possible design of this embodiment, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. For example, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0432] (2) Based on different communication scenarios, the network side device only supports zero-power devices of a specified receiver type, and only uses zero-power devices of this receiver type within the signal coverage range of the network side device.

[0433] In a possible design of this embodiment, the network-side device broadcasts the types of zero-power devices supported or the types of zero-power devices allowed to access by sending a broadcast signal or a beacon frame signal.

[0434] Based on the supported zero-power device types or the zero-power device types allowed to access broadcasted by the network side device, only zero-power devices of the corresponding zero-power device types can be accessed, or the zero-power device can adjust the receiver used to match the zero-power device types supported by the network side device or the zero-power device types allowed to access.

[0435] In a possible design of this embodiment, the sending module 1630 is used to send an uplink signal to the network side device after receiving the downlink signal.

[0436] In a possible design of this embodiment, when different receiver parameters are used, the bandwidths occupied by the uplink signals are the same or different.

[0437] For example, for a zero-power device that supports an RF-based receiver, its receiving bandwidth is 8 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; for a zero-power device that supports an intermediate frequency-based receiver, its receiving bandwidth is 1 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; that is, when using the two receiver parameters, the bandwidth occupied by the uplink signal is the same.

[0438] In a possible design of this embodiment, the zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; the receiver parameters are determined based on the communication process.

[0439] The communication process includes: cell search, beacon frame signal scanning, data communication and other processes.

[0440] In a possible design of this embodiment, the determining module 1610 is configured to, when the communication process is a first communication process, determine that the zero-power consumption device uses a first receiver parameter;

[0441] The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

[0442] For example, when the communication process is a cell search, it is determined that the zero-power device uses an RF-based receiver and the first receiving bandwidth is 4 channel bandwidths. Since the cell search generally lasts for a period of time, using an RF-based receiver is beneficial for saving power.

[0443] In one possible design of this embodiment, the determining module 1610 is configured to determine that the zero-power consumption device uses the second receiver parameters when the communication process is the second communication process;

[0444] The second communication process includes a data communication process, and the second receiver parameter includes a second receiver type and / or a second receiving bandwidth.

[0445] For example, when the communication process is data communication, it is determined that the zero-power consumption device uses an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths. In the data communication process, using an intermediate frequency (zero intermediate frequency)-based receiver can improve transmission efficiency.

[0446] As shown in Figure 10, the 920MHz to 925MHz frequency band is divided into 20 channels based on regional communications protocols, each occupying a 250kHz bandwidth. When deploying zero-power devices within this frequency band, both network-side devices and their transmissions must adhere to this channel division. To ensure support for different receivers, new divisions can be established based on this.

[0447] In a possible design of this embodiment, the receiving module 1620 is configured to receive, when the zero-power device uses the first receiver parameters, a downlink signal sent by the network-side device through one channel in a channel group, where the channel group includes at least two channels; or

[0448] When the zero-power consumption device uses the first receiver parameters, the downlink signal is received through the channel corresponding to the first receiving bandwidth.

[0449] In a possible design of this embodiment, the bandwidth of the channel group is a first multiple of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of a channel.

[0450] In a possible design of this embodiment, the channel is a channel determined based on a communication protocol for transmitting downlink signals, and the channel bandwidth of the channel is determined based on the communication protocol.

[0451] Exemplarily, in the new division method, the frequency band includes X channel groups, each of which includes M first channels. The first channel is a channel used to transmit downlink signals, determined based on the communication protocol. For example, X = 4, M = 5, and X can be an odd or even number. In this case, downlink signals are transmitted based on the bandwidth of the channel group, and the bandwidth of the channel group is a first multiple of the channel bandwidth of the first channel.

[0452] Alternatively, the frequency band includes X second channels, and the channel bandwidth of the second channels is M times the channel bandwidth of the first channel, for example, X=4, M=5, and X can be an odd number or an even number. In this case, the downlink signal is transmitted according to the channel bandwidth of the second channel, and the channel bandwidth of the second channel is a first multiple of the channel bandwidth of the first channel.

[0453] In a possible design of this embodiment, channels other than one channel in the channel group do not send downlink signals; or,

[0454] The channels other than one channel in the channel group send placeholder signals.

[0455] When the network side device sends a downlink signal to the zero-power consumption device, the downlink signal is sent only through the first channel, and other channels except the first channel do not send downlink signals or send placeholder signals.

[0456] In a possible design of this embodiment, the channel used to send the downlink signal is a channel located at the center of the channel group; or,

[0457] The channel used to transmit the downlink signal is one of the two channels located at the center of the channel group.

[0458] When the number of channels included in the channel group is odd, the channel used to send the downlink signal is the channel located most centrally in the channel group; when the number of channels included in the channel group is even, the channel used to send the downlink signal is one of the two channels located most centrally in the channel group.

[0459] Exemplarily, the second channel includes five channels, and the first channel (the channel for sending downlink signals) is the centralmost channel (the third channel); or, in the case where the second channel includes four channels, the first channel is one of the two centralmost channels (the second channel or the third channel).

[0460] When X = 2, each second channel occupies 2.5MHz of bandwidth and contains M = 10 first channels. The network-side device can send downlink signals on the fifth or sixth channel. Similarly, when X = 1, M = 20; when X = 5, M = 4.

[0461] In a possible design of this embodiment, the receiving module 1620 is used to receive a downlink signal sent by the network side device when the zero-power device uses the second receiver parameters.

[0462] In a possible design of this embodiment, the receiving module 1620 is configured to receive a downlink signal sent by the network-side device through a channel in a channel group when the zero-power device uses the second receiver parameters, where the channel group includes at least one channel; or

[0463] When the zero-power consumption device uses the second receiver parameters, the downlink signal is received through the channel corresponding to the second receiving bandwidth.

[0464] In a possible design of this embodiment, the bandwidth of the channel group is several times the second of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the second receiving bandwidth is several times the second of the channel bandwidth of a channel.

[0465] For example, for a zero-power device that supports an intermediate frequency-based receiver, 20 second channels (channel groups) are included in the 920MHz to 925MHz frequency band, and each second channel occupies a bandwidth of 250kHz. At this time, the second channel is equal to the first channel, and it can also be considered that there is no additional division of the second channel.

[0466] Alternatively, the frequency band includes 10 second channels, each of which includes 2 first channels. In this case, the network-side device can send a downlink signal in the first or second channel.

[0467] In some embodiments, the network-side device sends a downlink signal on a third channel, and a channel bandwidth of the third channel is determined based on a maximum receiving capability supported by the receiver.

[0468] For example, in the 1.8 GHz band or the 2.6 GHz band, the third channel has a channel bandwidth of 2 MHz, and the downlink signal is not limited to being sent within the range of 250 kHz, but only needs to be sent within the range of 2 MHz.

[0469] In this embodiment, the determination module 1610 can be divided into multiple determination modules, such as a first determination module and a second determination module. The first determination module is used to determine that the apparatus uses the first receiver parameters, and the second determination module is used to determine that the apparatus uses the second receiver parameters; or the first determination module is used to determine that the apparatus uses the second receiver parameters, and the second determination module is used to determine that the apparatus uses the first receiver parameters. This embodiment does not limit the functions of the different determination modules.

[0470] In this embodiment, the receiving module 1620 can be divided into multiple receiving modules, such as a first receiving module and a second receiving module. The first receiving module receives downlink signals via a channel corresponding to a first receiving bandwidth, and the second receiving module receives downlink signals via a channel corresponding to a second receiving bandwidth; or the first receiving module receives downlink signals via a channel corresponding to the second receiving bandwidth, and the second receiving module receives downlink signals via a channel corresponding to the first receiving bandwidth. This embodiment does not limit the functions of the different receiving modules.

[0471] In this embodiment, the sending module 1630 can be divided into multiple sending modules, such as a first sending module and a second sending module. The first sending module is configured to send an uplink signal to the network-side device after receiving a downlink signal, and the second sending module is configured to send the first information; alternatively, the first sending module is configured to send the first information, and the second sending module is configured to send an uplink signal to the network-side device after receiving a downlink signal. This embodiment does not limit the functions of the different sending modules.

[0472] This embodiment is described by taking one determination module 1610 as an example, and the number of determination modules 1610 is not limited.

[0473] This embodiment is described by taking one receiving module 1620 as an example, and the number of receiving modules 1620 is not limited.

[0474] This embodiment is described by taking one sending module 1630 as an example, and the number of sending modules 1630 is not limited.

[0475] For an introduction to the functions of the determination module 1610 , reference may be made to the contents of step 750 in the embodiment of FIG. 7 and step 810 in the embodiment of FIG. 8 .

[0476] For an introduction to the functions of the receiving module 1620 , please refer to the contents of step 740 in the embodiment of FIG. 7 and step 810 in the embodiment of FIG. 8 .

[0477] For an introduction to the functions of the sending module 1630 , reference may be made to step 720 in the embodiment of FIG. 7 , step 810 in the embodiment of FIG. 8 , and step 1110 in the embodiment of FIG. 11 .

[0478] Figure 17 shows a block diagram of a zero-power consumption device provided by an exemplary embodiment of the present application. The device can be implemented as a zero-power consumption device or as a part of a zero-power consumption device through software or hardware or a combination of both. The device includes a sending module 1710, wherein the function of the sending module 1710 is implemented by a transmitter in the zero-power consumption device.

[0479] The sending module 1710 is configured to send first information, where the first information includes receiver capability information or receiver parameter information of the device.

[0480] In one possible design of this embodiment, the receiver capability information or the receiver parameter information includes at least one of the following:

[0481] First capability information;

[0482] Second capability information;

[0483] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0484] In a possible design of this embodiment, the first capability information indicates information about receiver types supported by the zero-power device, and the second capability information indicates information about a bandwidth used to receive signals.

[0485] In one possible design of this embodiment, the first capability information includes at least one of the following:

[0486] RF-based receiver information;

[0487] IF-based receiver information;

[0488] Zero-IF based receiver information.

[0489] In one possible design of this embodiment, the zero-power device supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. This embodiment of the present application is not limited to this.

[0490] In one possible design of this embodiment, the second capability information includes at least one of the following:

[0491] First bandwidth value;

[0492] Second bandwidth value;

[0493] First multiple of the channel bandwidth;

[0494] Second multiple of the channel bandwidth;

[0495] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0496] In one possible design of this embodiment, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. For example, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0497] This embodiment is described by taking one sending module 1710 as an example, and the number of sending modules 1710 is not limited.

[0498] For an introduction to the functions of the sending module 1710 , please refer to the contents of step 720 in the embodiment of FIG. 7 , step 810 in the embodiment of FIG. 8 , and step 1110 in the embodiment of FIG. 11 .

[0499] Figure 18 shows a block diagram of a network-side device provided by an exemplary embodiment of the present application. The device can be implemented as a network device, or as a part of a network device, through software or hardware or a combination of both. The device includes a determination module 1810, a sending module 1820 and a receiving module 1830, wherein the function of the determination module 1810 is implemented by a processor in the network device, the function of the sending module 1820 is implemented by a transmitter in the network device, and the function of the receiving module 1830 is implemented by a receiver in the network device.

[0500] The determination module 1810 is configured to determine receiver parameters used by the zero-power consumption device, where the receiver parameters include a receiver type and / or a receiving bandwidth.

[0501] In a possible design of this embodiment, the receiver type indicates the type of receiver architecture used by the zero-power device, such as an RF-based receiver or an intermediate frequency (zero intermediate frequency)-based receiver; the receiving bandwidth indicates the bandwidth used to receive signals.

[0502] In one possible design of this embodiment, the zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters;

[0503] The sending module 1820 is configured to send a notification message to the zero-power consumption device, where the notification message is used to indicate receiver parameters.

[0504] In a possible design of this embodiment, the notification message is sent by the device based on a communication scenario.

[0505] Exemplarily, the network-side device sends a first notification message in a communication scenario such as a smart home scenario where the demand for a small number of zero-power devices is small; and sends a second notification message in a communication scenario such as industrial intelligence where the demand for a large number of zero-power devices is large.

[0506] In a possible design of this embodiment, the notification message is a first notification message;

[0507] The first notification message is used to notify the zero-power consumption device to use first receiver parameters, where the first receiver parameters include a first receiver type and / or a first receiving bandwidth.

[0508] In one possible design of this embodiment, the first receiver type is an RF-based receiver type.

[0509] The first notification message is sent by the network side device in a communication scenario where the required number of zero-power devices is less than a first threshold. The first threshold is determined or predefined based on the communication protocol. For example, the first notification message is sent in a smart home scenario to notify the zero-power device to use an RF-based receiver, and the first receiving bandwidth is 4 channel bandwidths.

[0510] In a possible design of this embodiment, the notification message is a second notification message;

[0511] The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

[0512] In a possible design of this embodiment, the second receiver type is an intermediate frequency-based receiver type or a zero intermediate frequency-based receiver type.

[0513] The second notification message is sent by the network side device in a communication scenario where the required number of zero-power devices is greater than a second threshold. The second threshold is determined or predefined based on the communication protocol. For example, the second notification message is sent in an industrial intelligent scenario to notify the zero-power device to use an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths.

[0514] In a possible design of this embodiment, the zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; the receiver parameters are determined based on the communication process.

[0515] The communication process includes: cell search, beacon frame signal scanning, data communication and other processes.

[0516] In a possible design of this embodiment, when the communication process is the first communication process, the determining module 1810 is configured to determine that the zero-power consumption device uses the first receiver parameter;

[0517] The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

[0518] For example, when the communication process is a cell search, it is determined that the zero-power device uses an RF-based receiver and the first receiving bandwidth is 4 channel bandwidths. Since the cell search generally lasts for a period of time, using an RF-based receiver is beneficial for saving power.

[0519] In a possible design of this embodiment, when the communication process is the second communication process, the determining module 1810 is configured to determine that the zero-power consumption device uses the second receiver parameters;

[0520] The second communication process includes a data communication process, and the second receiver parameter includes a second receiver type and / or a second receiving bandwidth.

[0521] For example, when the communication process is data communication, it is determined that the zero-power consumption device uses an intermediate frequency (zero intermediate frequency)-based receiver, and the second receiving bandwidth is 2 channel bandwidths. In the data communication process, using an intermediate frequency (zero intermediate frequency)-based receiver can improve transmission efficiency.

[0522] In a possible design of this embodiment, when the zero-power consumption device uses the first receiver parameters, the sending module 1820 is used to send a downlink signal.

[0523] As shown in Figure 10, the 920MHz to 925MHz frequency band is divided into 20 channels based on regional communications protocols, each occupying a 250kHz bandwidth. When deploying zero-power devices within this frequency band, both network-side devices and their transmissions must adhere to this channel division. To ensure support for different receivers, new divisions can be established based on this.

[0524] In a possible design of this embodiment, when the zero-power device uses the first receiver parameter, the sending module 1820 sends the downlink signal through one channel in the channel group, where the channel group includes at least two channels; or,

[0525] When the zero-power consumption device uses the first receiver parameters, the sending module 1820 sends the downlink signal through the channel corresponding to the first receiving bandwidth.

[0526] In a possible design of this embodiment, the bandwidth of the channel group is a first multiple of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of a channel.

[0527] In a possible design of this embodiment, when the zero-power consumption device uses the second receiver parameters, the sending module 1820 is used to send a downlink signal.

[0528] Zero-power devices use different receiver types and have different requirements for the network, such as different receiving bandwidths. When using an RF-based receiver, the receiving bandwidth is larger, for example, the receiving bandwidth is M channel bandwidths. When the channel bandwidth is 250kHz and M=8, the receiving bandwidth is 2MHz. This requires that when the network-side device sends a downlink signal (for example, the downlink signal is sent within a channel and occupies a bandwidth of no more than 250kHz), no signal can be sent to other zero-power devices within the 2MHz receiving bandwidth of the zero-power device. That is to say, within the 2MHz receiving bandwidth, although the downlink signal sent by the network-side device only occupies a bandwidth of no more than 250kHz, the remaining bandwidth cannot send downlink signals to other zero-power devices or other devices.

[0529] As shown in Figure 9, the receiving bandwidth is 8 channel bandwidths, occupying 8 channels from channel 7 to channel 14, of which channel 11 is an available channel for sending downlink signals, and the other 7 channels are protection bands and do not send other signals. This is because zero-power devices generally use relatively simple downlink signal waveforms. If other signals are transmitted within this bandwidth, the downlink signal of the zero-power device will be interfered with and cannot be demodulated. Receivers based on intermediate frequency or zero intermediate frequency only require a relatively narrow receiving bandwidth, for example, only the bandwidth of one channel, or the bandwidth of N channels, N = 1, 2, 3. Where N <M。

[0530] In one possible design of this embodiment, when the zero-power consumption device supporting at least two receivers communicates with the network-side device, the method adopted includes at least one of the following:

[0531] (1) The zero-power device sends receiver type information and / or receiving bandwidth information (e.g., the value of the receiving bandwidth, which is a multiple of the channel bandwidth) to the network-side device;

[0532] In a possible design of this embodiment, the receiving module 1830 is used to receive first information sent by the zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0533] In one possible design of this embodiment, the receiver capability information or the receiver parameter information includes at least one of the following:

[0534] First capability information;

[0535] Second capability information;

[0536] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0537] In a possible design of this embodiment, the first capability information indicates information about receiver types supported by the zero-power device, and the second capability information indicates information about a bandwidth used to receive signals.

[0538] In one possible design of this embodiment, the first capability information includes at least one of the following:

[0539] RF-based receiver information;

[0540] IF-based receiver information;

[0541] Zero-IF based receiver information.

[0542] In one possible design of this embodiment, the zero-power device supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. This embodiment of the present application is not limited to this.

[0543] In one possible design of this embodiment, the second capability information includes at least one of the following:

[0544] First bandwidth value;

[0545] Second bandwidth value;

[0546] First multiple of the channel bandwidth;

[0547] Second multiple of the channel bandwidth;

[0548] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0549] In one possible design of this embodiment, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. For example, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0550] (2) Based on different communication scenarios, the network side device only supports zero-power devices of a specified receiver type, and only uses zero-power devices of this receiver type within the signal coverage range of the network side device.

[0551] In a possible design of this embodiment, the sending module 1820 is used to broadcast supported zero-power device types or allowed access zero-power device types.

[0552] In a possible design of this embodiment, the supported zero-power device types or the allowed access zero-power device types are determined by the device based on a communication scenario.

[0553] In a possible design of this embodiment, the sending module 1820 broadcasts the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0554] In a possible design of this embodiment, the supported zero-power device types or the allowed access zero-power device types are determined by the network-side device based on a communication scenario (referred to as a scenario for short).

[0555] Based on factors such as communication scenarios, performance requirements, and signal coverage, the network-side device determines the types of zero-power devices supported or allowed to be accessed.

[0556] Scenario 1: In scenarios like smart homes and wearables, the demand for zero-power devices is relatively low, and users prioritize user experience. For example, they want to be able to power a zero-power device in a shorter time, allowing it to perform functions like communication or positioning. When the supported receiver is an RF-based receiver, power can be delivered in a shorter time due to lower power consumption. For example, when using a mobile phone to wirelessly power a zero-power device, it is generally necessary to open an application while communicating with the device to trigger the phone to wirelessly power the device. If the zero-power device consumes less power during operation, the phone's power supply time can be reduced, thereby reducing its energy consumption.

[0557] On the other hand, although RF-based receivers have low sensitivity and transmission efficiency, due to the wireless power supply method, the sensitivity of -20 decibels to -35 decibels is already the current implementation bottleneck. RF-based receivers can achieve a sensitivity of -35 decibels to -50 decibels. Moreover, in scenarios such as smart homes where the demand for the number of zero-power devices is limited, the lower transmission efficiency does not affect the user experience.

[0558] Scenario 2: In scenarios such as industrial intelligence or intelligent control, a large number of zero-power devices are required for environmental monitoring, production line monitoring, and asset inventory. In these scenarios, the number of zero-power devices is high, so high throughput is required to facilitate communication with these devices. For these scenarios, zero-power devices support IF-based receivers or zero-IF-based receivers. These receivers have high sensitivity and can receive signals using a narrower bandwidth. Therefore, more zero-power devices can communicate simultaneously within the same frequency band, resulting in higher transmission efficiency.

[0559] Scenario 3: In some scenarios, the number of zero-power devices required varies. For example, in a warehouse, the number of zero-power devices is high, while when goods are delivered from the warehouse to a supermarket, the number of zero-power devices is low. Therefore, for these scenarios, zero-power devices support two types of receivers: RF-based receivers and intermediate frequency (zero-IF)-based receivers. The network-side device can notify the zero-power device which receiver to use based on the specific scenario.

[0560] In a possible design of this embodiment, the sending module 1820 is used to broadcast the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0561] Based on the supported zero-power device types or the zero-power device types allowed to access broadcasted by the network side device, only zero-power devices of the corresponding zero-power device types can be accessed, or the zero-power device can adjust the receiver used to match the zero-power device types supported by the network side device or the zero-power device types allowed to access.

[0562] In a possible design of this embodiment, when the zero-power device uses the second receiver parameters, the sending module 1820 sends the downlink signal through a channel in the channel group, where the channel group includes at least one channel; or,

[0563] When the zero-power consumption device uses the second receiver parameters, the sending module 1820 sends the downlink signal through the channel corresponding to the second receiving bandwidth.

[0564] In a possible design of this embodiment, the bandwidth of the channel group is several times the second of the channel bandwidth of a channel; or, the channel bandwidth corresponding to the second receiving bandwidth is several times the second of the channel bandwidth of a channel.

[0565] In a possible design of this embodiment, the channel is a channel determined based on a communication protocol for transmitting downlink signals, and the channel bandwidth of the channel is determined based on the communication protocol.

[0566] Exemplarily, in the new division method, the frequency band includes X channel groups, each of which includes M first channels. The first channel is a channel used to transmit downlink signals, determined based on the communication protocol. For example, X = 4, M = 5, and X can be an odd or even number. In this case, downlink signals are transmitted based on the bandwidth of the channel group, and the bandwidth of the channel group is a first multiple of the channel bandwidth of the first channel.

[0567] Alternatively, the frequency band includes X second channels, and the channel bandwidth of the second channels is M times the channel bandwidth of the first channel, for example, X=4, M=5, and X can be an odd number or an even number. In this case, the downlink signal is transmitted according to the channel bandwidth of the second channel, and the channel bandwidth of the second channel is a first multiple of the channel bandwidth of the first channel.

[0568] In a possible design of this embodiment, channels other than one channel in the channel group do not send downlink signals; or,

[0569] The channels other than one channel in the channel group send placeholder signals.

[0570] When the network side device sends a downlink signal to the zero-power consumption device, the downlink signal is sent only through the first channel, and other channels except the first channel do not send downlink signals or send placeholder signals.

[0571] In a possible design of this embodiment, the channel used to send the downlink signal is a channel located at the center of the channel group; or,

[0572] The channel used to transmit the downlink signal is one of the two channels located at the center of the channel group.

[0573] When the number of channels included in the channel group is odd, the channel used to send the downlink signal is the channel located most centrally in the channel group; when the number of channels included in the channel group is even, the channel used to send the downlink signal is one of the two channels located most centrally in the channel group.

[0574] Exemplarily, the second channel includes five channels, and the first channel (the channel for sending downlink signals) is the centralmost channel (the third channel); or, in the case where the second channel includes four channels, the first channel is one of the two centralmost channels (the second channel or the third channel).

[0575] When X = 2, each second channel occupies 2.5MHz of bandwidth and contains M = 10 first channels. The network-side device can send downlink signals on the fifth or sixth channel. Similarly, when X = 1, M = 20; when X = 5, M = 4.

[0576] In a possible design of this embodiment, the receiving module 1830 is used to receive an uplink signal sent by the zero-power consumption device.

[0577] In a possible design of this embodiment, when different receiver parameters are used, the bandwidths occupied by the uplink signals are the same or different.

[0578] For example, for a zero-power device that supports an RF-based receiver, its receiving bandwidth is 8 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; for a zero-power device that supports an intermediate frequency-based receiver, its receiving bandwidth is 1 times the channel bandwidth, and the bandwidth occupied by the uplink signal is 1 times the channel bandwidth; that is, when using the two receiver parameters, the bandwidth occupied by the uplink signal is the same.

[0579] In one possible design of this embodiment, the sending module 1820 is configured to send a common signal;

[0580] The public signal is used by the zero-power device to perform cell search or beacon frame scanning, and the public signal includes a synchronization signal, a broadcast signal, or a beacon frame signal.

[0581] To ensure that the zero-power device can use an RF-based receiver when performing cell searches or beacon frame scanning, the network-side device must consider the reception bandwidth of the RF-based receiver when sending synchronization signals, broadcast signals, or beacon frame signals. According to the above embodiment, this reception bandwidth is generally large and may be greater than the channel bandwidth, for example, M times the channel bandwidth, where M is a positive integer.

[0582] In a possible design of this embodiment, the common signal is sent in a downlink channel, and the bandwidth occupied by the downlink channel is less than or equal to the bandwidth of one channel.

[0583] In one possible design of this embodiment, the sending module 1820 sends only the common signal within a first bandwidth centered on the downlink channel;

[0584] The first bandwidth is greater than or equal to a receiving bandwidth of the zero-power consumption device.

[0585] As shown in Figure 13, when the network-side device transmits a common signal, it is sent within a single downlink channel (occupying a bandwidth no greater than one channel bandwidth). Within a first bandwidth centered around the common signal (the first bandwidth is greater than or equal to the receive bandwidth), the network-side device cannot transmit any other downlink signals except the common signal. Other downlink signals can be transmitted on all channels at all times except when transmitting the common signal.

[0586] In one possible design of this embodiment, when operating in an unlicensed frequency band, the network-side device also needs to occupy the first bandwidth to ensure that other devices do not transmit signals within the first bandwidth during the transmission of the public signal. For example, before transmitting the public signal, the network-side device may transmit a placeholder signal (preamble) in all channels within the first bandwidth, indicating the duration of the occupancy (which duration is not less than the transmission duration of the public signal). Alternatively, when other network-side devices detect the public signal, they do not transmit any signals within the first bandwidth corresponding to the public signal.

[0587] In some embodiments, the network-side device sends a downlink signal on a third channel, and a channel bandwidth of the third channel is determined based on a maximum receiving capability supported by the receiver.

[0588] For example, in the 1.8 GHz band or the 2.6 GHz band, the third channel has a channel bandwidth of 2 MHz, and the downlink signal is not limited to being sent within the range of 250 kHz, but only needs to be sent within the range of 2 MHz.

[0589] In this embodiment, the determination module 1810 can be divided into multiple determination modules, such as a first determination module and a second determination module. The first determination module is used to determine whether the zero-power consumption device uses the first receiver parameters, and the second determination module is used to determine whether the zero-power consumption device uses the second receiver parameters; or the first determination module is used to determine whether the zero-power consumption device uses the second receiver parameters, and the second determination module is used to determine whether the zero-power consumption device uses the first receiver parameters. This embodiment does not limit the functions of the different determination modules.

[0590] In this embodiment, the sending module 1820 can be split into multiple sending modules, such as a first sending module, a second sending module, a third sending module, and a fourth sending module. The first sending module sends a downlink signal through a channel corresponding to the first receiving bandwidth, the second sending module sends a downlink signal through a channel corresponding to the second receiving bandwidth, the third sending module is used to broadcast supported zero-power device types or allowed access zero-power device types, and the fourth sending module is used to send a public signal; or the first sending module is used to broadcast supported zero-power device types or allowed access zero-power device types, the second sending module is used to send a public signal, the third sending module sends a downlink signal through a channel corresponding to the first receiving bandwidth, and the fourth sending module sends a downlink signal through a channel corresponding to the second receiving bandwidth. This embodiment does not limit the functions of different sending modules.

[0591] In this embodiment, the receiving module 1830 can be split into multiple receiving modules, such as a first receiving module and a second receiving module. The first receiving module is used to receive an uplink signal sent by the zero-power device, and the second receiving module is used to receive the first information sent by the zero-power device; or the first receiving module is used to receive the first information sent by the zero-power device, and the second receiving module is used to receive the uplink signal sent by the zero-power device. This embodiment does not limit the functions of the different receiving modules.

[0592] This embodiment is described by taking one determination module 1810 as an example, and the number of determination modules 1810 is not limited.

[0593] This embodiment is described by taking one receiving module 1820 as an example, and the number of receiving modules 1820 is not limited.

[0594] This embodiment is described by taking one sending module 1830 as an example, and the number of sending modules 1830 is not limited.

[0595] For an introduction to the functions of the determination module 1810 , reference may be made to the contents of step 730 in the embodiment of FIG. 7 and step 1210 in the embodiment of FIG. 12 .

[0596] For an introduction to the functions of the receiving module 1820 , reference may be made to the contents of step 720 in the embodiment of FIG. 7 , step 1210 in the embodiment of FIG. 12 , and step 1410 in the embodiment of FIG. 14 .

[0597] For an introduction to the functions of the sending module 1830 , reference may be made to steps 710 and 740 in the embodiment of FIG. 7 , step 1210 in the embodiment of FIG. 12 , and step 1510 in the embodiment of FIG. 15 .

[0598] Figure 19 shows a block diagram of a network side device provided by an exemplary embodiment of the present application. The device can be implemented as a network device or as a part of a network device through software or hardware or a combination of both. The device includes a receiving module 1910, wherein the function of the receiving module 1910 is implemented by a receiver in the network device.

[0599] The receiving module 1910 is configured to receive first information sent by the zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

[0600] In one possible design of this embodiment, the receiver capability information or the receiver parameter information includes at least one of the following:

[0601] First capability information;

[0602] Second capability information;

[0603] The first capability information is information used to indicate the type of the receiver, and the second capability information is information used to indicate the receiving bandwidth.

[0604] In a possible design of this embodiment, the first capability information indicates information about receiver types supported by the zero-power device, and the second capability information indicates information about a bandwidth used to receive signals.

[0605] In one possible design of this embodiment, the first capability information includes at least one of the following:

[0606] RF-based receiver information;

[0607] IF-based receiver information;

[0608] Zero-IF based receiver information.

[0609] In one possible design of this embodiment, the zero-power device supports any one of the above-mentioned receivers, or supports both an RF-based receiver and an intermediate frequency-based receiver, or supports both an RF-based receiver and a zero intermediate frequency-based receiver, or supports both of the above three receivers, or supports other types of receivers. This embodiment of the present application is not limited to this.

[0610] In one possible design of this embodiment, the second capability information includes at least one of the following:

[0611] First bandwidth value;

[0612] Second bandwidth value;

[0613] First multiple of the channel bandwidth;

[0614] Second multiple of the channel bandwidth;

[0615] Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, the first multiple is greater than the second multiple, and the first multiple and the second multiple are positive integers.

[0616] In one possible design of this embodiment, a channel is a channel for transmitting downlink signals determined based on a communication protocol. The channel bandwidth is determined based on the communication protocol, for example, a channel bandwidth of 250 kHz. For example, the receiving bandwidth of an RF-based receiver is 1000 kHz or 4 channel bandwidths, and the receiving bandwidth of an intermediate frequency (zero intermediate frequency)-based receiver is 250 kHz or 1 channel bandwidth.

[0617] This embodiment is described by taking one receiving module 1910 as an example, and the number of receiving modules 1910 is not limited.

[0618] For an introduction to the functions of the receiving module 1910 , reference may be made to the contents of step 720 in the embodiment of FIG. 7 , step 1210 in the embodiment of FIG. 12 , and step 1410 in the embodiment of FIG. 14 .

[0619] Figure 20 shows a block diagram of a network-side device provided by an exemplary embodiment of the present application. The device can be implemented as a network device, or as a part of a network device, through software or hardware or a combination of both. The device includes a broadcast module 2010, wherein the function of the broadcast module 2010 is implemented through a transmitter in the network device.

[0620] The broadcast module 2010 is used to broadcast supported zero-power device types or allowed access zero-power device types.

[0621] In a possible design of this embodiment, the supported zero-power device types or the allowed access zero-power device types are determined by the device based on a communication scenario.

[0622] In a possible design of this embodiment, the broadcast module 2010 broadcasts the supported zero-power device types or the allowed access zero-power device types by sending a broadcast signal or a beacon frame signal.

[0623] In a possible design of this embodiment, the supported zero-power device types or the allowed access zero-power device types are determined by the network-side device based on a communication scenario (referred to as a scenario for short).

[0624] Based on factors such as communication scenarios, performance requirements, and signal coverage, the network-side device determines the types of zero-power devices supported or allowed to be accessed.

[0625] Scenario 1: In scenarios like smart homes and wearables, the demand for zero-power devices is relatively low, and users prioritize user experience. For example, they want to be able to power a zero-power device in a shorter time, allowing it to perform functions like communication or positioning. When the supported receiver is an RF-based receiver, power can be delivered in a shorter time due to lower power consumption. For example, when using a mobile phone to wirelessly power a zero-power device, it is generally necessary to open an application while communicating with the device to trigger the phone to wirelessly power the device. If the zero-power device consumes less power during operation, the phone's power supply time can be reduced, thereby reducing its energy consumption.

[0626] On the other hand, although RF-based receivers have low sensitivity and transmission efficiency, due to the wireless power supply method, the sensitivity of -20 decibels to -35 decibels is already the current implementation bottleneck. RF-based receivers can achieve a sensitivity of -35 decibels to -50 decibels. Moreover, in scenarios such as smart homes where the demand for the number of zero-power devices is limited, the lower transmission efficiency does not affect the user experience.

[0627] Scenario 2: In scenarios such as industrial intelligence or intelligent control, a large number of zero-power devices are required for environmental monitoring, production line monitoring, and asset inventory. In these scenarios, the number of zero-power devices is high, so high throughput is required to facilitate communication with these devices. For these scenarios, zero-power devices support IF-based receivers or zero-IF-based receivers. These receivers have high sensitivity and can receive signals using a narrower bandwidth. Therefore, more zero-power devices can communicate simultaneously within the same frequency band, resulting in higher transmission efficiency.

[0628] Scenario 3: In some scenarios, the number of zero-power devices required varies. For example, in a warehouse, the number of zero-power devices is high, while when goods are delivered from the warehouse to a supermarket, the number of zero-power devices is low. Therefore, for these scenarios, zero-power devices support two types of receivers: RF-based receivers and intermediate frequency (zero-IF)-based receivers. The network-side device can notify the zero-power device which receiver to use based on the specific scenario.

[0629] In a possible design of this embodiment, the broadcast module 2010 is used to broadcast supported zero-power device types or allowed access zero-power device types by sending broadcast signals or beacon frame signals.

[0630] Based on the supported zero-power device types or the zero-power device types allowed to access broadcasted by the network side device, only zero-power devices of the corresponding zero-power device types can be accessed, or the zero-power device can adjust the receiver used to match the zero-power device types supported by the network side device or the zero-power device types allowed to access.

[0631] This embodiment is described by taking one broadcast module 2010 as an example, and the number of broadcast modules 2010 is not limited.

[0632] For an introduction to the functions of the broadcast module 2010 , please refer to the contents of step 710 in the embodiment of FIG. 7 , step 1210 in the embodiment of FIG. 12 , and step 1510 in the embodiment of FIG. 15 .

[0633] Figure 21 shows a structural diagram of a zero-power device or network device 2100 provided by an exemplary embodiment of the present application, including: a processor 2101, a receiver 2102, a transmitter 2103, a memory 2104 and a bus 2105.

[0634] The processor 2101 includes one or more processing cores. The processor 2101 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 2101 can be used to implement the functions and steps of at least one of the above-mentioned determination modules 1610 and 1810.

[0635] Receiver 2102 and transmitter 2103 can be implemented as a communication component, which can be a communication chip and is referred to as a transceiver. In some embodiments, receiver 2102 can be used to implement the functions and steps of at least one of the aforementioned receiving module 1620, receiving module 1830, and receiving module 1910, and transmitter 2103 can be used to implement the functions and steps of at least one of the aforementioned transmitting module 1630, transmitting module 1710, transmitting module 1820, and broadcasting module 2010.

[0636] The memory 2104 is connected to the processor 2101 via a bus 2105 .

[0637] The memory 2104 may be used to store at least one instruction, and the processor 2101 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0638] In addition, the memory 2104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

[0639] In some embodiments, the receiver 2102 receives signals / data independently, or the processor 2101 controls the receiver 2102 to receive signals / data, or the processor 2101 requests the receiver 2102 to receive signals / data, or the processor 2101 cooperates with the receiver 2102 to receive signals / data.

[0640] In some embodiments, the transmitter 2103 independently sends signals / data, or the processor 2101 controls the transmitter 2103 to send signals / data, or the processor 2101 requests the transmitter 2103 to send signals / data, or the processor 2101 cooperates with the transmitter 2103 to send signals / data.

[0641] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one program is stored. The at least one program is loaded and executed by a processor to implement the receiver parameter determination method or information transmission method provided by the above-mentioned various method embodiments.

[0642] In an exemplary embodiment, a computer program product or computer program is also provided. When the computer program product or computer program runs on a processor, it enables the zero-power device or network device 2100 to execute the receiver parameter determination method or information transmission method provided by the above-mentioned various method embodiments.

[0643] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or may be accomplished by a program instructing the relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk, or an optical disk, etc.

[0644] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A method for determining receiver parameters, characterized in that: The method is performed by a zero-power consumption device, and the method includes: Receiver parameters used by the zero-power consumption device are determined, where the receiver parameters include a receiver type and / or a receiving bandwidth.

2. The method according to claim 1, characterized in that The zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; The receiver parameters are determined based on a notification message sent by a network device.

3. The method according to claim 2, characterized in that The notification message is sent by the network device based on a communication scenario.

4. The method according to claim 3, characterized in that The notification message is a first notification message; The first notification message is used to notify the zero-power consumption device to use a first receiver parameter, where the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

5. The method according to claim 3, characterized in that: The notification message is a second notification message; The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

6. The method according to claim 1, characterized in that The zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; The receiver parameters are determined based on a communication process.

7. The method according to claim 6, characterized in that The determining a receiver used by the zero-power consumption device comprises: In a case where the communication process is a first communication process, determining that the zero-power consumption device uses a first receiver parameter; The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

8. The method according to claim 6, characterized in that The determining a receiver used by the zero-power consumption device comprises: In a case where the communication process is a second communication process, determining that the zero-power consumption device uses a second receiver parameter; The second communication process includes a data communication process, and the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

9. The method according to claim 4 or 7, characterized in that: The first receiver type is a receiver type based on radio frequency RF.

10. The method according to claim 5 or 8, characterized in that: The second receiver type is an intermediate frequency based receiver type or a zero intermediate frequency based receiver type.

11. The method according to claim 4, 7 or 9, characterized in that: The method further comprises: When the zero-power consumption device uses the first receiver parameter, the downlink signal sent by the network device is received.

12. The method according to claim 11, characterized in that The step of receiving, when the zero-power consumption device uses the first receiver parameter, a downlink signal sent by the network device includes: In a case where the zero-power consumption device uses the first receiver parameter, receiving the downlink signal sent by the network device through a channel in a channel group, wherein the channel group includes at least two channels; or When the zero-power consumption device uses the first receiver parameter, the downlink signal is received through a channel corresponding to the first receiving bandwidth.

13. The method according to claim 12, characterized in that The bandwidth of the channel group is a first multiple of the channel bandwidth of the one channel; or the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of the one channel.

14. The method according to claim 5, 8 or 10, characterized in that: The method further comprises: When the zero-power consumption device uses the second receiver parameter, the downlink signal sent by the network device is received.

15. The method according to claim 14, characterized in that The step of receiving, when the zero-power consumption device uses the second receiver parameter, a downlink signal sent by the network device includes: In a case where the zero-power consumption device uses the second receiver parameter, receiving the downlink signal sent by the network device through a channel in a channel group, the channel group including at least one channel; or, When the zero-power consumption device uses the second receiver parameter, the downlink signal is received through a channel corresponding to the second receiving bandwidth.

16. The method according to claim 15, characterized in that The bandwidth of the channel group is several times the second multiple of the channel bandwidth of the one channel; or the channel bandwidth corresponding to the second receiving bandwidth is several times the second multiple of the channel bandwidth of the one channel.

17. The method according to claim 12 or 13 or 15 or 16, characterized in that: The channel is a channel determined based on a communication protocol and used to transmit the downlink signal, and a channel bandwidth of the channel is determined based on the communication protocol.

18. The method according to claim 12 or 13 or 15 or 16, characterized in that: The other channels except the one channel in the channel group do not send the downlink signal; or, The other channels except the one channel in the channel group send placeholder signals.

19. The method according to claim 12 or 13 or 15 or 16, characterized in that: The channel used to send the downlink signal is a channel located at the center of the channel group; or, The channel used to send the downlink signal is one of the two most central channels in the channel group.

20. The method according to any one of claims 11 to 19, characterized in that: The method further comprises: After receiving the downlink signal, an uplink signal is sent to the network device.

21. The method according to claim 20, characterized in that When different receiver parameters are used, the bandwidths occupied by the uplink signals are the same or different.

22. The method according to any one of claims 1 to 21, characterized in that: The method further comprises: Sending first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

23. The method according to claim 22, characterized in that The receiver capability information or the receiver parameter information includes at least one of the following: First capability information; Second capability information; The first capability information is information used to indicate the type of receiver, and the second capability information is information used to indicate the receiving bandwidth.

24. The method according to claim 23, characterized in that The first capability information includes at least one of the following: RF-based receiver information; IF-based receiver information; Zero-IF based receiver information.

25. The method according to claim 24, characterized in that The second capability information includes at least one of the following: A first bandwidth value; The second bandwidth value; The first multiple of the channel bandwidth; Second multiple of channel bandwidth; Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth corresponding to the RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth corresponding to the intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

26. An information transmission method, characterized in that: The method is performed by a zero-power consumption device, and the method includes: Sending first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

27. The method according to claim 26, characterized in that The receiver capability information or the receiver parameter information includes at least one of the following: First capability information; Second capability information; The first capability information is information used to indicate the type of receiver, and the second capability information is information used to indicate the receiving bandwidth.

28. The method according to claim 27, characterized in that The first capability information includes at least one of the following: RF-based receiver information; IF-based receiver information; Zero-IF based receiver information.

29. The method according to claim 28, characterized in that The second capability information includes at least one of the following: A first bandwidth value; The second bandwidth value; The first multiple of the channel bandwidth; Second multiple of channel bandwidth; Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth of the corresponding RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth of the corresponding intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

30. A method for determining receiver parameters, characterized in that: The method is performed by a network device, and the method includes: Receiver parameters used by the zero-power device are determined, where the receiver parameters include a receiver type and / or a receiving bandwidth.

31. The method according to claim 30, characterized in that The zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters, and the method further includes: A notification message is sent to the zero-power consumption device, where the notification message is used to indicate the receiver parameter.

32. The method according to claim 31, characterized in that The notification message is sent by the network device based on a communication scenario.

33. The method according to claim 32, characterized in that The notification message is a first notification message; The first notification message is used to notify the zero-power consumption device to use a first receiver parameter, where the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

34. The method according to claim 32, characterized in that The notification message is a second notification message; The second notification message is used to notify the zero-power consumption device to use second receiver parameters, where the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

35. The method according to claim 30, characterized in that The zero-power consumption device supports at least two receivers, or the zero-power consumption device supports at least two receiver parameters; The receiver parameters are determined based on a communication process.

36. The method according to claim 35, characterized in that The determining of the receiver used by the zero-power consumption device includes: In a case where the communication process is a first communication process, determining that the zero-power consumption device uses a first receiver parameter; The first communication process includes a process of performing a cell search or a beacon frame signal scanning process, and the first receiver parameter includes a first receiver type and / or a first receiving bandwidth.

37. The method according to claim 35, characterized in that The determining of the receiver used by the zero-power consumption device includes: In a case where the communication process is a second communication process, determining that the zero-power consumption device uses a second receiver parameter; The second communication process includes a data communication process, and the second receiver parameters include a second receiver type and / or a second receiving bandwidth.

38. The method according to claim 33 or 36, characterized in that The first receiver type is a receiver type based on radio frequency RF.

39. The method according to claim 34 or 37, characterized in that The second receiver type is an intermediate frequency based receiver type or a zero intermediate frequency based receiver type.

40. The method according to claim 33, 36 or 38, characterized in that The method further comprises: When the zero-power consumption device uses the first receiver parameter, a downlink signal is sent.

41. The method according to claim 40, characterized in that The sending of a downlink signal when the zero-power consumption device uses the first receiver parameter includes: In a case where the zero-power consumption device uses the first receiver parameter, the downlink signal is sent through a channel in a channel group, the channel group including at least two channels; or When the zero-power consumption device uses the first receiver parameter, the downlink signal is sent through a channel corresponding to the first receiving bandwidth.

42. The method according to claim 41, characterized in that The bandwidth of the channel group is a first multiple of the channel bandwidth of the one channel; or the channel bandwidth corresponding to the first receiving bandwidth is a first multiple of the channel bandwidth of the one channel.

43. The method according to claim 34, 37 or 39, characterized in that: The method further comprises: When the zero-power consumption device uses the second receiver parameter, a downlink signal is sent.

44. The method according to claim 43, characterized in that The sending of a downlink signal when the zero-power consumption device uses the second receiver parameter includes: In a case where the zero-power consumption device uses the second receiver parameter, the downlink signal is sent through a channel in a channel group, the channel group including at least one channel; or When the zero-power consumption device uses the second receiver parameter, the downlink signal is sent through a channel corresponding to the second receiving bandwidth.

45. The method according to claim 44, characterized in that The bandwidth of the channel group is several times the second multiple of the channel bandwidth of the one channel; or the channel bandwidth corresponding to the second receiving bandwidth is several times the second multiple of the channel bandwidth of the one channel.

46. ​​The method according to claim 41 or 42 or 44 or 45, characterized in that The channel is a channel determined based on a communication protocol and used to transmit the downlink signal, and a channel bandwidth of the channel is determined based on the communication protocol.

47. The method according to claim 41 or 42 or 44 or 45, characterized in that The other channels except the one channel in the channel group do not send the downlink signal; or, The other channels except the one channel in the channel group send placeholder signals.

48. The method according to claim 41 or 42 or 44 or 45, characterized in that The channel used to send the downlink signal is a channel located at the center of the channel group; or, The channel used to send the downlink signal is one of the two most central channels in the channel group.

49. The method according to any one of claims 40 to 48, characterized in that The method further comprises: Receive an uplink signal sent by the zero-power consumption device.

50. The method according to claim 49, characterized in that When different receiver parameters are used, the bandwidths occupied by the uplink signals are the same or different.

51. The method according to claim 30, characterized in that The method further comprises: Advertises the types of zero-power devices that are supported or allowed to access.

52. The method according to claim 51, characterized in that The supported zero-power consumption device type or the allowed access zero-power consumption device type is determined by the network device based on a communication scenario.

53. The method according to claim 51 or 52, characterized in that The types of zero-power device supported by the broadcast or the types of zero-power device allowed to access include: The supported zero-power consumption device types or the allowed access zero-power consumption device types are broadcasted by sending a broadcast signal or a beacon frame signal.

54. The method according to claim 30, characterized in that The method further comprises: Sending public signals; The common signal is used by the zero-power consumption device to perform cell search or beacon frame scanning, and the common signal includes a synchronization signal, a broadcast signal, or a beacon frame signal.

55. The method according to claim 54, characterized in that The common signal is sent in a downlink channel, and a bandwidth occupied by the downlink channel is less than or equal to a channel bandwidth.

56. The method according to claim 55, characterized in that The sending of a public signal comprises: In a first bandwidth centered on the downlink channel, only the common signal is sent; The first bandwidth is greater than or equal to the receiving bandwidth of the zero-power consumption device.

57. The method according to any one of claims 30 to 56, characterized in that The method further comprises: First information sent by the zero-power consumption device is received, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

58. The method according to claim 57, characterized in that The receiver capability information or the receiver parameter information includes at least one of the following: First capability information; Second capability information; The first capability information is information used to indicate the type of receiver, and the second capability information is information used to indicate the receiving bandwidth.

59. The method according to claim 58, characterized in that The first capability information includes at least one of the following: RF-based receiver information; IF-based receiver information; Zero-IF based receiver information.

60. The method according to claim 59, characterized in that The second capability information includes at least one of the following: A first bandwidth value; The second bandwidth value; The first multiple of the channel bandwidth; Second multiple of channel bandwidth; Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth corresponding to the RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth corresponding to the intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

61. An information transmission method, characterized in that: The method is performed by a network device, and the method includes: First information sent by a zero-power consumption device is received, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

62. The method according to claim 61, characterized in that The receiver capability information or the receiver parameter information includes at least one of the following: First capability information; Second capability information; The first capability information is information used to indicate the type of receiver, and the second capability information is information used to indicate the receiving bandwidth.

63. The method according to claim 62, characterized in that The first capability information includes at least one of the following: RF-based receiver information; IF-based receiver information; Zero-IF based receiver information.

64. The method according to claim 63, characterized in that The second capability information includes at least one of the following: A first bandwidth value; The second bandwidth value; The first multiple of the channel bandwidth; Second multiple of channel bandwidth; Among them, the first bandwidth value or the first multiple of the channel bandwidth represents the receiving bandwidth corresponding to the RF-based receiver, the second bandwidth value or the second multiple of the channel bandwidth represents the receiving bandwidth corresponding to the intermediate frequency-based receiver or the zero intermediate frequency-based receiver, the first bandwidth value is greater than the second bandwidth value, and the first multiple is greater than the second multiple.

65. An information transmission method, characterized in that: The method is performed by a network device, and the method includes: Advertises the types of zero-power devices that are supported or allowed to access.

66. The method according to claim 65, characterized in that The supported zero-power consumption device type or the allowed access zero-power consumption device type is determined by the network device based on a communication scenario.

67. The method according to claim 65 or 66, characterized in that The types of zero-power device supported by the broadcast or the types of zero-power device allowed to access include: The supported zero-power consumption device types or the allowed access zero-power consumption device types are broadcasted by sending a broadcast signal or a beacon frame signal.

68. A zero power consumption device, characterized in that: The device comprises: The determination module is used to determine the receiver parameters used by the zero-power consumption device, wherein the receiver parameters include a receiver type and / or a receiving bandwidth.

69. A zero power consumption device, characterized in that: The device comprises: The sending module is used to send first information, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

70. A network side device, characterized in that: The device comprises: The determination module is used to determine the receiver parameters used by the zero-power consumption device, wherein the receiver parameters include the receiver type and / or the receiving bandwidth.

71. A network side device, characterized in that: The device comprises: The receiving module is used to receive first information sent by a zero-power consumption device, where the first information includes receiver capability information or receiver parameter information of the zero-power consumption device.

72. A network side device, characterized in that: The device comprises: The broadcast module is used to broadcast the types of zero-power devices supported or allowed to access.

73. A zero-power consumption device, characterized in that: The zero-power consumption device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load and execute the executable instructions to implement the receiver parameter determination method as described in any one of claims 1 to 25, or the information transmission method as described in any one of claims 26 to 29.

74. A network device, characterized in that: The network equipment includes: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load and execute the executable instructions to implement the receiver parameter determination method as described in any one of claims 30 to 60, or the information transmission method as described in any one of claims 61 to 64, or the information transmission method as described in any one of claims 65 to 67.

75. A computer-readable storage medium, characterized in that The computer-readable storage medium stores at least one program, and the at least one program is loaded and executed by the processor to implement the receiver parameter determination method as described in any one of claims 1 to 25, or the information transmission method as described in any one of claims 26 to 29, or the receiver parameter determination method as described in any one of claims 30 to 60, or the information transmission method as described in any one of claims 61 to 64, or the information transmission method as described in any one of claims 65 to 67.

76. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. The processor obtains the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to implement the receiver parameter determination method as described in any one of claims 1 to 25, or the information transmission method as described in any one of claims 26 to 29, or the receiver parameter determination method as described in any one of claims 30 to 60, or the information transmission method as described in any one of claims 61 to 64, or the information transmission method as described in any one of claims 65 to 67.

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