Wake-up method and apparatus, device, and storage medium

Abstract

The present application relates to the field of zero power consumption, and discloses a wake-up method and apparatus, a device, and a medium. The method is executed by a network device. The method comprises: sending a first signal, the first signal carrying wake-up information for waking up at least one zero-power-consumption device, wherein a frequency domain resource corresponding to the wake-up information comprises at least two frequency domain unit groups, and each frequency domain unit group comprises at least one frequency domain unit. The sent first signal transmits the wake-up information by means of the at least two frequency domain unit groups, and the first signal carrying the wake-up information is distributed uniformly in frequency domain, thereby avoiding high peak power and interference caused by excessively concentrated energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and receiving quality of the wake-up information carried by the first signal.

Description

Wake-up method, device, equipment and storage medium Technical Field

[0001] The present application relates to the field of zero power consumption, and in particular to a wake-up method, apparatus, device and storage medium. Background Art

[0002] The wake-up signal received by the zero-power device is usually transmitted using a simple waveform and has the characteristics of low-power reception and low-power detection.

[0003] However, such a simple waveform can easily lead to excessive concentration of the wake-up signal energy and excessive frequency selectivity, which is detrimental to the robustness and transmission quality of the wake-up signal.

[0004] Summary of the Invention

[0005] This application provides a wake-up method, apparatus, device, and medium. The technical solution at least includes:

[0006] According to one aspect of an embodiment of the present application, a wake-up method is provided, the method being performed by a network device, the method comprising:

[0007] Sending a first signal, where the first signal carries wake-up information for waking up at least one zero-power consumption device;

[0008] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0009] According to another aspect of an embodiment of the present application, a wake-up method is provided, the method being performed by a zero-power consumption device, the method comprising:

[0010] receiving a first signal, where the first signal carries wake-up information for waking up at least one of the zero-power consumption devices;

[0011] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0012] According to another aspect of an embodiment of the present application, a wake-up device is provided, the device comprising:

[0013] A first sending module, configured to send a first signal, where the first signal carries wake-up information for waking up at least one zero-power consumption device;

[0014] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0015] According to another aspect of an embodiment of the present application, a wake-up device is provided, the device comprising:

[0016] A second receiving module is configured to receive a first signal, where the first signal carries wake-up information for waking up at least one of the zero-power consumption devices;

[0017] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0018] According to another aspect of an embodiment of the present application, a network device is provided, the network device including:

[0019] processor;

[0020] a transmitter connected to the processor;

[0021] a memory for storing executable instructions for the processor;

[0022] The transmitter is configured to send a first signal, which carries wake-up information for waking up at least one zero-power device, and the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, each group of frequency domain unit groups includes at least one frequency domain unit.

[0023] According to another aspect of an embodiment of the present application, a zero-power consumption device is provided, the zero-power consumption device including: a first receiver;

[0024] The first receiver is configured to receive a first signal, where the first signal carries wake-up information for waking up at least one of the zero-power consumption devices;

[0025] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0026] According to one aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by the processor to implement the wake-up method as described in the above aspect.

[0027] According to one aspect of the present application, a computer program product is provided, which includes computer instructions, the computer instructions are stored in a computer-readable storage medium, a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes to implement the wake-up method described in the above aspect.

[0028] According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions, and is used to implement the wake-up method described in the above aspects when the chip is running.

[0029] According to one aspect of the present application, a computer program is provided, which includes computer instructions. A processor of a computer device executes the computer instructions, so that the computer device executes the wake-up method as described in the above aspect.

[0030] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0031] The first signal transmits the wake-up information through at least two groups of frequency domain unit groups. The first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] FIG1 shows a schematic diagram of a zero-power communication system provided by an exemplary embodiment of the present application;

[0034] FIG2 shows a schematic diagram of a discontinuous reception state provided by the related art;

[0035] FIG3 shows a schematic diagram of a dormant BWP / dormant carrier provided by the related art;

[0036] FIG4 shows a schematic diagram of a receiving system of a terminal device provided by an exemplary embodiment of the present application;

[0037] FIG5 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0038] FIG6 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0039] FIG7 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0040] FIG8 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0041] FIG9 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0042] FIG10 shows a schematic diagram of generating a first signal provided by an exemplary embodiment of the present application;

[0043] FIG11 is a schematic diagram showing time-frequency resources corresponding to a first signal provided by an exemplary embodiment of the present application;

[0044] FIG12 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0045] FIG13 shows a schematic diagram of generating a first signal provided by an exemplary embodiment of the present application;

[0046] FIG14 is a schematic diagram showing time-frequency resources corresponding to a first signal provided by an exemplary embodiment of the present application;

[0047] FIG15 shows a structural block diagram of a wake-up device provided by an exemplary embodiment of the present application;

[0048] FIG16 shows a structural block diagram of a wake-up device provided by an exemplary embodiment of the present application;

[0049] FIG17 shows a schematic structural diagram of a network device provided by an exemplary embodiment of the present application;

[0050] FIG18 shows a schematic structural diagram of a zero-power consumption device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0051] 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.

[0052] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application 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.

[0053] It should be understood that although the terms first, second, third, etc. may be used in this application 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 application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0054] First, the communication technology involved in the embodiments of this application is introduced:

[0055] 1. Introduction to Zero Power Communication

[0056] Zero-power communication can be achieved through the Zero-Power Internet of Things (IoT), which can also be called the Ambient Power Enabled Internet of Things (Ambient IoT / A-IoT) or the Passive IoT.

[0057] Terminal devices that utilize zero-power communication technology are referred to as Ambient IoT Devices (A-IoT Devices). Ambient IoT devices utilize various ambient energies, such as radio frequency energy, light, solar energy, thermal energy, and mechanical energy, to power their operations. Ambient IoT devices can have no energy storage capacity or very limited energy storage capacity, such as using capacitors with a capacity of tens of microfarads (μF). Compared to other IoT devices, Ambient IoT devices offer numerous advantages, including the absence of conventional batteries, maintenance-free operation, compact size, reduced complexity, low cost, and a long lifespan.

[0058] As shown in FIG1 , a schematic diagram of a zero-power communication system 100 provided by an exemplary embodiment of the present application is shown. The zero-power communication system 100 includes a network device 120 and a zero-power device 140 .

[0059] 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 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, and 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 data stored in the zero-power device 140 itself (such as an identity identifier or pre-written information, such as the production date, brand, manufacturer, etc. of the product).

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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-based access to unlicensed spectrum (LTE-U) system, NR-based access to 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.

[0065] It should be understood that in some embodiments of the present application, "5G" may also be referred to as "5G NR" or "NR".

[0066] 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.

[0067] 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 communication device (e.g., a zero-power device, a network device), and the present application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol or what is agreed upon in the protocol.

[0068] 2. Discontinuous Reception (DRX) state

[0069] The DRX transmission mechanism can be used to save energy in terminal devices. The main principle is to implement discontinuous reception (DRX) in the time domain through semi-static configuration. When there is no data transmission, the terminal device can reduce power consumption by stopping monitoring the Physical Downlink Control Channel (PDCCH) (this also disables PDCCH blind detection).

[0070] DRX can be implemented by configuring a DRX cycle for a terminal device in the Radio Resource Control Connected state (RRC_Connected). As shown in Figure 2, the DRX cycle consists of an active time and an inactive time. During the active time, the terminal device monitors and receives the PDCCH; during the inactive time, the terminal device does not monitor or receive the PDCCH to reduce power consumption. The active time occurs after DRX is enabled, before the inactive timer starts, or before the inactive timer expires.

[0071] 3. Dormancy Bandwidth Part (BWP) or Dormancy Carrier

[0072] A network device can configure a BWP, multiple BWPs, or a carrier, or multiple carriers, to a dormant state. The network device can adjust the dormant BWP or carrier based on current system throughput, service requirements, and other factors. A BWP in a dormant state can be referred to as a dormant BWP, and a carrier in a dormant state can be referred to as a dormant carrier.

[0073] Exemplarily, the network device enables the terminal device to operate on the dormant BWP or the non-dormant BWP by instructing the switching of the BWP.

[0074] When a terminal device is operating on a BWP or carrier in a dormant state, it does not need to monitor the PDCCH or reduces its monitoring of the PDCCH. In addition, the terminal device can only maintain some basic signal reception, such as signals for channel measurement, signals for uplink and downlink synchronization, signals for frequency calibration, etc.

[0075] As shown in FIG3 , the power consumption of the terminal device can be greatly reduced when the terminal device operates in a sleep BWP or a sleep carrier.

[0076] 4. Terminal energy saving based on wake-up receiver (WUR)

[0077] WUR is characterized by extremely low cost, low complexity, and extremely low power consumption. It mainly receives the wake-up signal (WUS) through envelope detection. Traditional receivers generally consume more than 100 milliwatts, while WUR can consume less than 1 milliwatt.

[0078] Unlike traditional receivers in terminal devices, WUR does not need to be turned on or off to save power. Instead, it can be activated by WUS at any time and receive wake-up information. The WUS received by WUR usually uses a relatively simple modulation method, such as an envelope signal formed by ASK modulation.

[0079] The demodulation of the envelope signal can be accomplished by driving a low-power circuit based on the induced current generated by electromagnetic induction, or by driving a low-power circuit based on the energy provided by the wireless radio frequency signal, so the WUR can be passive or semi-passive. The demodulation of the envelope signal can also be accomplished based on the built-in battery or power supply system of the WUR, so the WUR can also be active. But regardless of the power supply method, the WUR greatly reduces power consumption compared to traditional receivers. The WUR can be combined with the traditional receiver of the terminal device as an additional module of the traditional receiver; or, the WUR can be a separate module of the terminal device, such as a wake-up function module.

[0080] Figure 4 shows a block diagram of a receiver system in a terminal device, including a main receiver 401 and a WUR 403. After receiving a wake-up signal, if the main receiver 401 needs to be turned on for operation, the WUR 403 can send a wake-up message to the main receiver 401 to wake it up. Otherwise, the main receiver 401 can remain in the off state to save power.

[0081] The wake-up signal received by the WUR features low-power reception and low-power detection, so it is typically transmitted using a simple waveform. If such a simple waveform is transmitted using a single carrier, the signal energy is concentrated on a single frequency, resulting in poor signal robustness and excessive frequency selectivity, which is detrimental to signal transmission quality and efficiency.

[0082] Based on the above problems, the present application proposes a wake-up method, which makes the signal carrying the wake-up information distributed more evenly in the frequency domain, thereby avoiding excessive concentration of signal energy.

[0083] FIG5 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0084] Step 510: Send a first signal, where the first signal carries wake-up information for waking up at least one zero-power consumption device.

[0085] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0086] The frequency domain unit includes at least one of a carrier, a bandwidth part (Bandwidth Part, BWP), a subband, a subchannel, a PRB, a subcarrier, and a unit based on other frequency domain units.

[0087] In some embodiments, the wake-up information carried by the first signal is used to wake up a zero-power device. Optionally, the wake-up information carried by the first signal includes one or more parts, and the one or more parts are used to wake up a zero-power device.

[0088] In some embodiments, the wake-up information carried by the first signal is used to wake up multiple zero-power devices. Optionally, the first signal carries multiple wake-up information, and the multiple wake-up information corresponds one-to-one to the multiple zero-power devices.

[0089] In some embodiments, at least two frequency domain unit groups are located at different frequency domain positions, that is, at least two frequency domain unit groups respectively include different frequency domain units. Optionally, at least two frequency domain unit groups are adjacent or non-adjacent.

[0090] For example, if two frequency domain unit groups are not adjacent, it means that other frequency domain resources exist between the two frequency domain unit groups, or a guard interval (GI) exists between the two frequency domain unit groups, or other frequency domain resources and a guard interval exist between the two frequency domain unit groups. The other frequency domain resources are frequency domain resources other than the two frequency domain unit groups and the guard interval.

[0091] Exemplarily, if two or more frequency domain unit groups are non-adjacent, it means that other frequency domain resources exist between at least two of the frequency domain unit groups, or a guard interval exists between at least two of the frequency domain unit groups, or other frequency domain resources and a guard interval exist between at least two of the frequency domain unit groups. The other frequency domain resources are frequency domain resources other than the two or more frequency domain unit groups and the guard interval.

[0092] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple frequency domain units. Optionally, the multiple frequency domain units are continuous or discontinuous.

[0093] To sum up, the method provided in the embodiment of the present application transmits the wake-up information through at least two groups of frequency domain unit groups in the first signal sent. The first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding the high peak power and interference problems caused by excessive concentration of the energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal.

[0094] In some embodiments, step 510 may also be implemented as step 610 , as shown in FIG. 6 .

[0095] FIG6 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by a network device and includes:

[0096] Step 610: Send a first signal, the first signal carrying wake-up information for waking up at least one zero-power device; wherein the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, and each group of frequency domain unit groups includes at least one frequency domain unit.

[0097] In some embodiments, the wake-up information carried by the first signal is used to wake up a zero-power device. Optionally, the wake-up information carried by the first signal includes one or more parts, and the one or more parts are used to wake up a zero-power device.

[0098] In some embodiments, the wake-up information carried by the first signal is used to wake up multiple zero-power devices. Optionally, the first signal carries multiple wake-up information, and the multiple wake-up information corresponds one-to-one to the multiple zero-power devices.

[0099] In some embodiments, at least two frequency domain unit groups are located at different frequency domain positions, that is, at least two frequency domain unit groups respectively include different frequency domain units. Optionally, at least two frequency domain unit groups are adjacent or non-adjacent.

[0100] In some embodiments, the parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

[0101] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple frequency domain units. Optionally, the multiple frequency domain units are continuous or discontinuous.

[0102] In some embodiments, the parameters of the associated wake-up information include at least one of the following:

[0103] The identifier of the zero-power device corresponding to the wake-up information;

[0104] The index of the zero-power device corresponding to the wake-up information;

[0105] The channel identifier corresponding to the wake-up information;

[0106] The channel index corresponding to the wake-up information;

[0107] Signal segment corresponding to the wake-up information.

[0108] The zero-power device corresponding to the wake-up information may also be referred to as the zero-power device associated with the wake-up information, which refers to the zero-power device that the wake-up information is used to wake up.

[0109] The channel identity (Identity) corresponding to the wake-up message refers to the identity of the channel used to carry the wake-up message, or the identity of the channel used to transmit the wake-up message. Similarly, the channel index (Index) corresponding to the wake-up message refers to the index of the channel used to carry the wake-up message, or the index of the channel used to transmit the wake-up message.

[0110] The signal segment corresponding to the wake-up information refers to the signal segment to which the wake-up information belongs in the first signal.

[0111] In some embodiments, the first signal includes a time domain signal generated by a first transformation of a frequency domain signal; wherein the first transformation refers to the transformation of a signal from the frequency domain to the time domain.

[0112] In some embodiments, the first transform includes one of the following: inverse Fourier transform (IFT), inverse fast Fourier transform (IFFT), inverse Laplace transform, inverse z-transform, other transforms equivalent to IFT, other transforms equivalent to IFFT, other transforms equivalent to inverse Laplace transform, and other transforms equivalent to inverse z-transform. "Equivalent" means that the two transforms achieve the same effect, or the two transforms have the same principles, or the two transforms have the same calculation process.

[0113] In some embodiments, the frequency domain signal includes at least two groups of frequency domain signals corresponding to at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of at least two groups of frequency domain signals and other frequency domain signals;

[0114] The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

[0115] Illustratively, other frequency domain signals are signals using an Orthogonal Frequency Division Multiplexing (OFDM) waveform, such as a measurement signal, a cell broadcast signal, a multicast signal, and the like.

[0116] In some embodiments, the at least two groups of frequency domain units correspond one-to-one to the at least two groups of frequency domain signals.

[0117] In some embodiments, the i-th group of frequency domain signals in the at least two groups of frequency domain signals is generated based on at least one second transformation by the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups;

[0118] The second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0119] In some embodiments, the second transform includes one of the following: Fourier transform (FT), fast Fourier transform (FFT), discrete Fourier transform (DFT), Laplace transform, z-transform, other transforms equivalent to FT, other transforms equivalent to FFT, other transforms equivalent to Laplace transform, and other transforms equivalent to z-transform. "Equivalent" means that the two transforms achieve the same effect, or the two transforms have the same principles, or the two transforms have the same calculation process.

[0120] In some embodiments, the i-th group of frequency domain signals in the at least two groups of frequency domain signals includes a frequency domain sequence determined based on the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups. Alternatively, the i-th group of frequency domain signals may be composed of a frequency domain sequence, and the frequency domain sequence may be associated with the wake-up information corresponding to the i-th group of frequency domain unit groups.

[0121] In some embodiments, at least one zero-power device is located in the same or different cells. It can also be understood that the first signal is used to wake up at least one zero-power device in one cell; or the first signal is used to wake up zero-power devices in multiple cells.

[0122] In some embodiments, the first signal is a cell-level signal. It can also be understood that the first signal corresponds one-to-one with each cell, and different cells correspond to different first signals.

[0123] In some embodiments, the wake-up information is cell-level information. It can also be understood that the wake-up information corresponds to a cell one-to-one, and different cells correspond to different wake-up information.

[0124] In some embodiments, the wake-up information is terminal device-level information. It can also be understood that the wake-up information corresponds one-to-one with the terminal device, and different terminal devices correspond to different wake-up information.

[0125] In summary, the method provided in the embodiment of the present application transmits the wake-up information through at least two groups of frequency domain unit groups in the first signal sent. The first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding the high peak power and interference problems caused by the excessive concentration of the energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal. In addition, a transformation method for the first signal is designed, by separately processing the wake-up information corresponding to each group of frequency domain unit groups, such as performing a second transformation or generating a frequency domain sequence separately for the wake-up information corresponding to each group of frequency domain unit groups, to further make the energy of the finally transmitted first signal evenly distributed, and further improve the robustness of the first signal.

[0126] FIG7 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by a zero-power device, and the method includes:

[0127] Step 710: Receive a first signal, where the first signal carries wake-up information for waking up at least one zero-power consumption device.

[0128] The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

[0129] The frequency domain unit includes at least one of a carrier, a BWP, a subband, a subchannel, a PRB, a subcarrier, and a unit based on other frequency domain units.

[0130] In some embodiments, the wake-up information carried by the first signal is used to wake up a zero-power device. Optionally, the wake-up information carried by the first signal includes one or more parts, and the one or more parts are used to wake up a zero-power device.

[0131] In some embodiments, the wake-up information carried by the first signal is used to wake up multiple zero-power devices. Optionally, the first signal carries multiple wake-up information, and the multiple wake-up information corresponds one-to-one to the multiple zero-power devices.

[0132] In some embodiments, at least two frequency domain unit groups are located at different frequency domain positions, that is, at least two frequency domain unit groups respectively include different frequency domain units. Optionally, at least two frequency domain unit groups are adjacent or non-adjacent.

[0133] For example, if two frequency domain unit groups are not adjacent, it means that there are other frequency domain resources between the two frequency domain unit groups, or there is a guard interval between the two frequency domain unit groups, or there are other frequency domain resources and a guard interval between the two frequency domain unit groups. The other frequency domain resources are frequency domain resources other than the two frequency domain unit groups and the guard interval.

[0134] Exemplarily, if two or more frequency domain unit groups are non-adjacent, it means that other frequency domain resources exist between at least two of the frequency domain unit groups, or a guard interval exists between at least two of the frequency domain unit groups, or other frequency domain resources and a guard interval exist between at least two of the frequency domain unit groups. The other frequency domain resources are frequency domain resources other than the two or more frequency domain unit groups and the guard interval.

[0135] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple frequency domain units. Optionally, the multiple frequency domain units are continuous or discontinuous.

[0136] To sum up, in the method provided in the embodiment of the present application, the received first signal transmits wake-up information through at least two groups of frequency domain unit groups, and the first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal.

[0137] In some embodiments, step 710 may also be implemented as step 810 , as shown in FIG. 8 .

[0138] FIG8 is a flow chart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by a zero-power device, and the method includes:

[0139] Step 810: Receive a first signal, the first signal carrying wake-up information for waking up at least one zero-power device; wherein the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, and each group of frequency domain unit groups includes at least one frequency domain unit.

[0140] In some embodiments, the wake-up information carried by the first signal is used to wake up a zero-power device. Optionally, the wake-up information carried by the first signal includes one or more parts, and the one or more parts are used to wake up a zero-power device.

[0141] In some embodiments, the wake-up information carried by the first signal is used to wake up multiple zero-power devices. Optionally, the first signal carries multiple wake-up information, and the multiple wake-up information corresponds one-to-one to the multiple zero-power devices.

[0142] In some embodiments, at least two frequency domain unit groups are located at different frequency domain positions, that is, at least two frequency domain unit groups respectively include different frequency domain units. Optionally, at least two frequency domain unit groups are adjacent or non-adjacent.

[0143] In some embodiments, the parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

[0144] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple frequency domain units. Optionally, the multiple frequency domain units are continuous or discontinuous.

[0145] In some embodiments, the parameters of the associated wake-up information include at least one of the following: the identifier of the zero-power device corresponding to the wake-up information; the index of the zero-power device corresponding to the wake-up information; the channel identifier corresponding to the wake-up information; the channel index corresponding to the wake-up information; and the signal segment corresponding to the wake-up information.

[0146] The zero-power device corresponding to the wake-up information may also be referred to as the zero-power device associated with the wake-up information, which refers to the zero-power device that the wake-up information is used to wake up.

[0147] The channel identifier corresponding to the wake-up message refers to the identifier of the channel used to carry the wake-up message, or the identifier of the channel used to transmit the wake-up message. Similarly, the channel index corresponding to the wake-up message refers to the index of the channel used to carry the wake-up message, or the index of the channel used to transmit the wake-up message.

[0148] The signal segment corresponding to the wake-up information refers to the signal segment to which the wake-up information belongs in the first signal.

[0149] In some embodiments, the frequency domain resources corresponding to the wake-up information are determined based on at least one second transformation, where the second transformation refers to the transformation of the signal from the time domain to the frequency domain; or, the frequency domain resources corresponding to the wake-up information are determined based on a frequency domain sequence.

[0150] In some embodiments, the second transform includes one of the following: FT, FFT, DFT, Laplace transform, z-transform, other transforms equivalent to FT, other transforms equivalent to FFT, other transforms equivalent to Laplace transform, and other transforms equivalent to z-transform. "Equivalent" means that the two transforms achieve the same effect, or the two transforms have the same principles, or the two transforms have the same calculation process.

[0151] In some embodiments, the first signal includes a time domain signal generated by a first transformation of a frequency domain signal; wherein the first transformation refers to the transformation of a signal from the frequency domain to the time domain.

[0152] In some embodiments, the first transform includes one of the following: IFT, IFFT, inverse Laplace transform, inverse z-transform, other transforms equivalent to IFT, other transforms equivalent to IFFT, other transforms equivalent to inverse Laplace transform, and other transforms equivalent to inverse z-transform. "Equivalent" means that the two transforms achieve the same effect, or the two transforms have the same principles, or the two transforms have the same calculation process.

[0153] In some embodiments, the frequency domain signal includes at least two groups of frequency domain signals corresponding to at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals, wherein the other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

[0154] In some embodiments, at least one zero-power device is located in the same or different cells. It can also be understood that the first signal is used to wake up at least one zero-power device in one cell; or the first signal is used to wake up zero-power devices in multiple cells.

[0155] In some embodiments, the first signal is a cell-level signal. It can also be understood that the first signal corresponds one-to-one with each cell, and different cells correspond to different first signals.

[0156] In some embodiments, the wake-up information is cell-level information. It can also be understood that the wake-up information corresponds to a cell one-to-one, and different cells correspond to different wake-up information.

[0157] In some embodiments, the wake-up information is terminal device-level information. It can also be understood that the wake-up information corresponds one-to-one with the terminal device, and different terminal devices correspond to different wake-up information.

[0158] In summary, in the method provided in the embodiment of the present application, the received first signal transmits wake-up information through at least two groups of frequency domain unit groups. The first signal carrying the wake-up information is distributed relatively evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy in the first signal. This helps to improve the robustness of the first signal and helps to improve the transmission quality and reception quality of the wake-up information carried by the first signal. In addition, the frequency domain resources corresponding to the wake-up information are each determined separately, further making the energy of the first signal evenly distributed and further improving the robustness of the first signal.

[0159] Next, taking the case where parameters of wake-up information associated with different frequency domain unit groups are the same as an example, the design and use of the first signal are schematically described.

[0160] FIG9 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is performed by a zero-power device and a network device. The method includes:

[0161] Step 910: The network device obtains a set of frequency domain signals based on the wake-up information;

[0162] The wake-up information is used to wake up one zero-power consumption device, or to wake up multiple zero-power consumption devices.

[0163] In some embodiments, the network device performs at least one second transformation on the wake-up information to obtain a set of frequency domain signals.

[0164] In some embodiments, the wake-up information corresponds to a group of information bit groups, which includes n bits. The group of information bit groups is subjected to at least one second transformation to map the wake-up information to n frequency domain units in the frequency domain, where n is an integer greater than or equal to 1.

[0165] Exemplarily, as shown in Figure 10, the wake-up information corresponds to n bits, and the wake-up information bit group can be represented by y(n). Taking the second transform as a DFT transform as an example, after performing at least one DFT on y(n), a set of frequency domain signals x(n) is obtained in the frequency domain, where x(i) corresponds one-to-one with y(i), and i = 0, 1, 2, ... n-1. Exemplarily, the value of n is one of {1, 2, 4, 6, 8, 12, 16}, or n is another integer greater than 1.

[0166] In some embodiments, the wake-up information is represented by a set of frequency domain sequences. The set of frequency domain signals corresponding to the wake-up information includes a set of frequency domain sequences. Alternatively, the set of frequency domain signals corresponding to the wake-up information is represented by a set of frequency domain sequences. In this case, the network device does not need to perform the second transformation when obtaining the set of frequency domain signals based on the wake-up information.

[0167] In some embodiments, before executing step 910, the network device further performs time domain oversampling on the wake-up information. For example, the original wake-up information corresponds to n / 4 bits, and after 4 times oversampling, 4 consecutive bits are repeated to form an information bit group including n bits.

[0168] Step 920: The network device repeats a set of frequency domain signals at least once in the frequency domain to obtain at least two sets of repeated frequency domain signals;

[0169] Each set of frequency domain signals x(n) has a different frequency domain position. It can also be understood that the at least two sets of repeated frequency domain signals x(n) correspond to different frequency domain unit groups, each of which includes at least one frequency domain unit. Optionally, the at least two sets of repeated frequency domain signals x(n) are adjacent or non-adjacent.

[0170] Different frequency domain unit groups correspond to the same frequency domain signals, which can also be understood as the same parameters of the wake-up information associated with different frequency domain unit groups. The parameters of the wake-up information may include the identifier of the zero-power device, the channel identifier, and the like.

[0171] Exemplarily, as shown in FIG10 , there are at least two sets of repeated frequency domain signals x(n) in the frequency domain, and the frequency domain unit group corresponding to each set of frequency domain signals x(n) includes at least two consecutive frequency domain units. If the frequency domain units are subcarriers, for example, the subcarrier group corresponding to each set of frequency domain signals x(n) includes at least two consecutive subcarriers.

[0172] Step 930: The network device multiplexes at least two sets of repeated frequency domain signals with other frequency domain signals to obtain a multiplexed frequency domain signal;

[0173] At least two groups of repeated frequency domain signals x(n) form a multiplexed frequency domain signal with other frequency domain signals z(n), or at least two groups of repeated frequency domain signals x(n) form a multiplexed frequency domain signal with a protection interval, or at least two groups of repeated frequency domain signals x(n) form a multiplexed frequency domain signal with other frequency domain signals z(n) and a protection interval.

[0174] Exemplarily, as shown in FIG13 , at least two sets of repeated frequency domain signals x(n) are multiplexed with another frequency domain signal z(n), and a guard interval exists between the at least two sets of repeated frequency domain signals x(n). Therefore, the at least two sets of repeated frequency domain signals x(n) are non-adjacent.

[0175] In some embodiments, the other frequency domain signals z(n) are signals using OFDM waveforms, such as cell broadcast signals, measurement signals, system messages, etc.

[0176] It should be noted that step 930 is an optional step. If step 930 is performed, at least two groups of frequency domain signals are multiplexed with other frequency domain signals, which can improve the utilization efficiency of spectrum resources.

[0177] Step 940: The network device obtains a first signal based on the frequency domain signal;

[0178] In some embodiments, the network device performs a first transformation on at least two groups of repeated frequency domain signals to obtain a first signal.

[0179] In some embodiments, the network device performs a first transformation on the multiplexed frequency domain signal to obtain a first signal.

[0180] Exemplarily, as shown in FIG10 , the frequency domain signal x(n) forms a multiplexed frequency domain signal with other frequency domain signals z(n) and a guard interval. Taking the first transformation as IFFT as an example, after performing IFFT on the multiplexed frequency domain signal, the first signal is obtained in the time domain.

[0181] In some embodiments, the first signal corresponds to at least two time domain units, that is, the multiplexed frequency domain signal is mapped to at least two time domain units after IFFT. Optionally, different time domain units corresponding to the first signal are associated with different frequency domain positions, respectively. It can also be understood that the first signal corresponds to at least two time domain units, and the frequency domain positions mapped on the at least two time domain units are different. Such a design is conducive to improving the anti-interference capability of the first signal and improving the ability to resist frequency selective fading (i.e., anti-fading capability). In addition, the design of the first signal corresponding to at least two groups of frequency domain unit groups improves the total transmission power and coverage performance of the first signal.

[0182] In some embodiments, the first signal is a frequency hopping signal, which supports further improving the communication quality of the first signal.

[0183] In some embodiments, the time domain unit includes at least one of: a frame, a subframe, a slot, a mini-slot, a sub-slot, a symbol, a symbol group, and a unit based on other time domain units.

[0184] The symbols include at least one of the following: Orthogonal Frequency-Division Multiplexing (OFDM) symbol, Quadrature Phase Shift Keying (QPSK) symbol, Amplitude Shift Keying (ASK) symbol, Frequency Shift Keying (FSK) symbol, On-Off Keying (OOK) symbol, and MC-OOK symbol.

[0185] In some embodiments, different frequency domain positions associated with the at least two time domain units corresponding to the first signal are adjacent or non-adjacent.

[0186] Exemplarily, as shown in Figure 11, taking the time domain unit as a symbol as an example, the first signal corresponds to m symbols, and the first signal is mapped to different frequency domain unit groups on different symbols, and there is a gap between different frequency domain unit groups. The interval can be formed by other frequency domain resources or a guard interval. In addition, the frequency domain unit groups mapped by the first signal on different time domain units can be adjacent or non-adjacent. For example, in Figure 11, the frequency domain unit groups mapped by the first signal on symbol 1 and symbol 2 are adjacent, and the frequency domain unit groups mapped by the first signal on symbol 2 and symbol m are non-adjacent.

[0187] Step 950: The network device sends a first signal;

[0188] In some embodiments, the wake-up information carried by the first signal is used to wake up a zero-power device, so the network device may send the first signal in a unicast manner.

[0189] In some embodiments, the wake-up information carried by the first signal is used to wake up at least two zero-power devices. Then, the network device may send the first signal in a multicast or broadcast manner.

[0190] In some embodiments, the at least two zero-power consumption devices are located in the same cell, or are located in different cells.

[0191] In some embodiments, the first signal is a cell-level signal, which can also be understood as the wake-up information carried by the first signal being used to wake up one or more zero-power consumption devices in a cell.

[0192] Step 960: The zero-power device receives and / or detects and / or measures the first signal;

[0193] In some embodiments, the zero-power consumption device receives and / or detects the first signal and obtains the wake-up information carried by the first signal.

[0194] In some embodiments, the frequency domain resources corresponding to the wake-up information are determined based on at least one second transformation, or the frequency domain resources corresponding to the wake-up information are determined based on a frequency domain sequence.

[0195] In some embodiments, the zero-power consumption device measures the first signal to obtain a signal quality of the first signal.

[0196] In some embodiments, the signal quality can be represented by at least one of the following: Reference Signal Receiving Power (RSRP) value, Reference Signal Strength Indicator (RSSI) value, Reference Signal Receiving Quality (RSRQ) value, Signal to Interference plus Noise Ratio (SINR) value, Cross Link Interference (CLI) value, Channel State Information (CSI) value, etc.

[0197] Step 970: The zero-power device starts a main receiver of the zero-power device based on the wake-up information and / or the signal quality of the first signal.

[0198] In some embodiments, the wake-up information indicates that the zero-power device receives data and / or other signals other than the first signal. Then, the zero-power device starts the main receiver and uses the main receiver to receive data and / or other signals on the time-frequency resources indicated by the wake-up information.

[0199] In some embodiments, the wake-up information instructs the zero-power device to send data and / or signals. Then, the zero-power device starts the main transmitter and / or backscatter transmitter, and uses the main transmitter and / or backscatter transmitter to send data and / or signals on the time-frequency resources indicated by the wake-up information.

[0200] In some embodiments, when the signal quality of the first signal is lower than a first threshold, the zero-power consumption device starts the main receiver and uses the main receiver to receive data and / or signals on the time-frequency resources indicated by the wake-up information.

[0201] In some embodiments, when the signal quality of the first signal is lower than a first threshold, the zero-power device starts the main transmitter and / or backscatter transmitter, and uses the main transmitter and / or backscatter transmitter to send data and / or signals on the time-frequency resources indicated by the wake-up information.

[0202] The first threshold is agreed upon by the communication protocol, configured by the network device, or determined by the zero-power device.

[0203] It should be understood that steps 910, 920, 930, 940, and 970 are optional steps. Each of the above steps can be used individually or in combination. For example, steps 910, 920, 930, and 940 can be combined to form a signal modulation method; or, step 970 can be combined to form a zero-power device operating method; or, steps 950 and 960 can be combined to form a signal transmission method; or, steps 960 and 970 can be combined to form a signal processing method.

[0204] To sum up, in the method provided in the embodiment of the present application, the received first signal transmits wake-up information through at least two groups of frequency domain unit groups, and the first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal.

[0205] Moreover, unlike using a single carrier to send a group of wake-up information, in the method provided in the embodiment of the present application, a group of frequency domain signals corresponding to a group of wake-up information are repeated multiple times in the frequency domain, so that the energy of the first signal is more evenly distributed, further improving the robustness of the first signal. Therefore, the method provided in the embodiment of the present application helps to improve the robustness, anti-interference ability and anti-fading ability of the first signal when the first signal only needs to carry a group of wake-up information.

[0206] Next, the design and use of the first signal will be schematically described by taking the different parameters of the wake-up information associated with different frequency domain unit groups as an example.

[0207] FIG12 is a flow chart of a wake-up method provided by an exemplary embodiment of the present application. The method is performed by a zero-power device and a network device. The method includes:

[0208] Step 1210: The network device obtains at least two sets of frequency domain signals based on at least two sets of wake-up information;

[0209] The parameters of the wake-up information of different groups are different. The parameters of the wake-up information include at least one of the following: the identifier of the zero-power device corresponding to the wake-up information; the index of the zero-power device corresponding to the wake-up information; the identifier of the channel corresponding to the wake-up information; the channel index corresponding to the wake-up information; and the signal segment corresponding to the wake-up information.

[0210] For example, different groups of wake-up information correspond to different identifiers of zero-power devices, which means that different groups of wake-up information are used to wake up different zero-power devices; and / or different groups of wake-up information correspond to different channel identifiers, which means that different groups of wake-up information are used to wake up zero-power devices associated with different channels, which can also be understood as different groups of wake-up information are used to wake up zero-power devices working on different channels; and / or different groups of wake-up information correspond to different signal segments, which means that different groups of wake-up information belong to different signal segments in the first signal.

[0211] A set of wake-up information is used to wake up one zero-power device, or to wake up multiple zero-power devices.

[0212] In some embodiments, the network device performs at least one second transformation on a set of wake-up information to obtain a set of frequency domain signals, and performs at least one second transformation on each of multiple sets of wake-up information to obtain multiple sets of frequency domain signals.

[0213] In some embodiments, a group of wake-up information corresponds to a group of information bit groups, a group of information bit groups includes n bits, and at least one second transformation is performed on the group of information bit groups to map the group of wake-up information to n frequency domain units in the frequency domain, where n is an integer greater than or equal to 1.

[0214] It should be noted that the number of bits corresponding to the information bit groups corresponding to different groups of wake-up information can be the same or different. In other words, the value of n corresponding to different groups of wake-up information can be the same or different. Exemplarily, the value of n is one of {1, 2, 4, 6, 8, 12, 16}, or n is another integer greater than 1.

[0215] For example, as shown in Figure 13, the network device obtains three sets of frequency domain signals based on three sets of wake-up information. The first set of wake-up information corresponds to five bits, and the information bit group of the first set of wake-up information can be represented by y1(n). Taking the second transform as a DFT transform, after performing at least one DFT on y1(n), a first set of frequency domain signals x1(n) is obtained in the frequency domain, where x1(i) corresponds to y1(i), and i = 0, 1, 2, 3, 4. The second set of wake-up information corresponds to five bits, and the information bit group of the second set of wake-up information can be represented by y2(n). Taking the second transform as a DFT transform, after performing at least one DFT on y2(n), a second set of frequency domain signals x2(n) is obtained in the frequency domain, where x2(i) corresponds to y2(i), and i = 0, 1, 2, 3, 4. The third set of wake-up information corresponds to six bits, and the information bit group of the third set of wake-up information can be represented by y3(n). Taking the second transform as DFT transform as an example, after performing at least one DFT on y3(n), a third set of frequency domain signals x3(n) is obtained in the frequency domain, where x3(i') corresponds to y3(i') one to one, i'=0, 1, 2, 3, 4, 5.

[0216] In some embodiments, a set of wake-up information is represented by a set of frequency domain sequences. The set of frequency domain signals corresponding to the set of wake-up information includes a set of frequency domain sequences. Alternatively, the set of frequency domain signals corresponding to the set of wake-up information is represented by a set of frequency domain sequences. In this case, the network device does not need to perform a second transformation when deriving a set of frequency domain signals based on the set of wake-up information. Multiple sets of wake-up information correspond one-to-one to multiple sets of frequency domain sequences.

[0217] In some embodiments, before executing step 1210, the network device further performs time-domain oversampling on the wake-up information. For example, a set of original wake-up information corresponds to n / 4 bits, and after 4 times oversampling, a set of information bits including n bits is formed by repeating 4 consecutive bits.

[0218] The frequency domain positions of different groups of frequency domain signals are different. It can also be understood that at least two groups of frequency domain signals correspond to different frequency domain unit groups, each frequency domain unit group including at least one frequency domain unit. Optionally, at least two groups of frequency domain signals are adjacent or non-adjacent.

[0219] Exemplarily, as shown in FIG13 , there are at least two groups of frequency domain signals in the frequency domain, and the frequency domain unit group corresponding to each group of frequency domain signals includes at least two consecutive frequency domain units. If the frequency domain units are subcarriers, for example, the subcarrier group corresponding to each group of frequency domain signals includes at least two consecutive subcarriers.

[0220] Step 1220: The network device multiplexes at least two sets of frequency domain signals with other frequency domain signals to obtain a multiplexed frequency domain signal.

[0221] At least two groups of frequency domain signals form a multiplexed frequency domain signal with other frequency domain signals z(n), or at least two groups of frequency domain signals form a multiplexed frequency domain signal with a protection interval, or at least two groups of frequency domain signals form a multiplexed frequency domain signal with other frequency domain signals z(n) and a protection interval.

[0222] Exemplarily, as shown in FIG13 , at least two groups of frequency domain signals (including x1(n), x2(n), and x3(n)) are multiplexed with another frequency domain signal z(n), and a guard interval exists between the at least two groups of frequency domain signals. Therefore, the at least two groups of frequency domain signals are non-adjacent.

[0223] In some embodiments, the other frequency domain signals z(n) are signals using OFDM waveforms, such as cell broadcast signals, measurement signals, system messages, etc.

[0224] It should be noted that step 1220 is an optional step. If step 1220 is performed, at least two groups of frequency domain signals are multiplexed with other frequency domain signals, which can improve the utilization efficiency of spectrum resources.

[0225] Step 1230: The network device obtains a first signal based on the frequency domain signal;

[0226] In some embodiments, the network device performs a first transformation on at least two groups of frequency domain signals to obtain a first signal.

[0227] In some embodiments, the network device performs a first transformation on the multiplexed frequency domain signal to obtain a first signal.

[0228] Exemplarily, as shown in Figure 13, at least two groups of frequency domain signals (including x1(n), x2(n) and x3(n)) form a multiplexed frequency domain signal with other frequency domain signals z(n) and a protection interval. Taking the first transformation as IFFT as an example, after performing IFFT on the multiplexed frequency domain signal, the first signal is obtained in the time domain.

[0229] In some embodiments, the first signal corresponds to at least two time domain units, that is, the multiplexed frequency domain signal is mapped to at least two time domain units after IFFT. Optionally, different time domain units corresponding to the first signal are associated with different frequency domain positions, respectively. It can also be understood that the first signal corresponds to at least two time domain units, and the frequency domain positions (or mapped frequency domain unit groups) mapped on the at least two time domain units are different. Such a design is conducive to improving the anti-interference capability of the first signal and improving the ability to resist frequency selective fading. In addition, the design of the first signal corresponding to at least two groups of frequency domain unit groups improves the total transmission power and coverage performance of the first signal.

[0230] In some embodiments, the first signal is a frequency hopping signal, which supports further improving the communication quality of the first signal.

[0231] In some embodiments, the time domain unit includes at least one of a frame, a subframe, a time slot, a mini-time slot, a sub-time slot, a symbol, a symbol group, and a unit based on other time domain units.

[0232] The symbol includes at least one of the following: OFDM symbol, QPSK symbol, ASK symbol, FSK symbol, OOK symbol, and MC-OOK symbol.

[0233] In some embodiments, different frequency domain positions associated with the at least two time domain units corresponding to the first signal are adjacent or non-adjacent.

[0234] Exemplarily, as shown in Figure 14, taking the time domain unit as a time slot as an example, the first signal corresponds to m time slots, and the first signal is mapped to different frequency domain unit groups in different time slots, and there is a gap between different frequency domain unit groups. The gap can be formed by other frequency domain resources, or it can be a protection interval. Optionally, the frequency domain unit groups mapped by the first signal in different time domain units can be adjacent or non-adjacent. Optionally, the number of frequency domain units included in the frequency domain unit groups mapped by the first signal in different time domain units is the same or different. For example, the frequency domain unit group mapped by the first signal in time slot 1 and time slot 2 includes 2 frequency domain units, and the frequency domain unit group mapped by the first signal in time slot m includes 3 frequency domain units.

[0235] Step 1240: The network device sends a first signal;

[0236] In some embodiments, the wake-up information carried by the first signal is used to wake up at least two zero-power devices. Then, the network device may send the first signal in a multicast or broadcast manner.

[0237] In some embodiments, the at least two zero-power consumption devices are located in the same cell, or are located in different cells.

[0238] In some embodiments, the first signal is a cell-level signal, which can also be understood as the wake-up information carried by the first signal being used to wake up multiple zero-power devices in a cell.

[0239] In some embodiments, the wake-up information is at the cell level, which can also be understood as: a group of wake-up information is used to wake up one or more zero-power devices in a cell, and different groups of wake-up information are used to wake up one or more zero-power devices in different cells.

[0240] Step 1250: The zero-power device receives and / or detects and / or measures a first signal;

[0241] In some embodiments, the zero-power consumption device receives and / or detects the first signal and obtains the wake-up information carried by the first signal.

[0242] In some embodiments, the frequency domain resources corresponding to the wake-up information are determined based on at least one second transformation, or the frequency domain resources corresponding to the wake-up information are determined based on a frequency domain sequence.

[0243] In some embodiments, the zero-power consumption device measures the first signal to obtain a signal quality of the first signal.

[0244] In some embodiments, the signal quality may be represented by at least one of the following: RSRP value, RSSI value, RSRQ value, SINR value, CLI value, CSI value, etc.

[0245] Step 1260: The zero-power device starts a main receiver of the zero-power device based on the wake-up information and / or the signal quality of the first signal.

[0246] In some embodiments, the wake-up information indicates that the zero-power device receives data and / or other signals other than the first signal. Then, the zero-power device starts the main receiver and uses the main receiver to receive data and / or other signals on the time-frequency resources indicated by the wake-up information.

[0247] In some embodiments, the wake-up information instructs the zero-power device to send data and / or signals. Then, the zero-power device starts the main transmitter and / or backscatter transmitter, and uses the main transmitter and / or backscatter transmitter to send data and / or signals on the time-frequency resources indicated by the wake-up information.

[0248] It should be understood that steps 1210, 1220, 1230, and 1260 are optional steps. Each of the above steps can be used individually or in combination. For example, steps 1210, 1220, and 1230 can be combined to form a signal modulation method; or step 1260 can be combined to form a zero-power device operating method; or steps 1240 and 1250 can be combined to form a signal transmission method; or steps 1250 and 1260 can be combined to form a signal processing method.

[0249] To sum up, in the method provided in the embodiment of the present application, the received first signal transmits wake-up information through at least two groups of frequency domain unit groups, and the first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy of the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal.

[0250] Moreover, unlike using a single carrier to send a group of wake-up information, in the method provided in the embodiment of the present application, multiple groups of frequency domain signals corresponding to multiple groups of wake-up information are distributed adjacently or non-adjacently in the frequency domain, avoiding excessive concentration of energy of the first signal, and further improving the robustness of the first signal. Therefore, the method provided in the embodiment of the present application, when it is necessary to send multiple groups of wake-up information, carries multiple groups of wake-up information through one signal, which can not only improve the transmission resource utilization and communication efficiency, but also improve the robustness, anti-interference ability and anti-fading ability of the first signal.

[0251] Figure 15 shows a block diagram of a wake-up device provided by an exemplary embodiment of the present application. The device can be implemented as a network device, or as part of a network device, through software or hardware, or a combination of both. The device includes at least some of the following modules: a first sending module 1510, a first processing module 1530, and a first receiving module 1550.

[0252] The first sending module 1510 is used to send a first signal, which carries wake-up information for waking up at least one zero-power consumption device; wherein the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, and each group of frequency domain unit groups includes at least one frequency domain unit.

[0253] In some embodiments, the parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

[0254] In some embodiments, the parameters of the associated wake-up information include at least one of the following: an identifier of the zero-power device corresponding to the wake-up information; an index of the zero-power device corresponding to the wake-up information; a channel identifier corresponding to the wake-up information; a channel index corresponding to the wake-up information; and a signal segment corresponding to the wake-up information.

[0255] In some embodiments, the first signal includes a time domain signal generated by a first transformation of a frequency domain signal; wherein the first transformation refers to a transformation of a signal from the frequency domain to the time domain.

[0256] In some embodiments, the first transform comprises one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

[0257] In some embodiments, the frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; wherein, the other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

[0258] In some embodiments, the at least two groups of frequency domain units correspond one-to-one to the at least two groups of frequency domain signals;

[0259] The i-th group of frequency domain signals in the at least two groups of frequency domain signals is generated based on at least one second transformation by the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups;

[0260] The second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0261] In some embodiments, the second transform comprises one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, z-transform.

[0262] In some embodiments, the at least two groups of frequency domain units correspond one-to-one to the at least two groups of frequency domain signals;

[0263] The i-th group of frequency domain signals in the at least two groups of frequency domain signals includes a frequency domain sequence determined based on the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups.

[0264] In some embodiments, the at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

[0265] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple consecutive frequency domain units, or includes multiple discontinuous frequency domain units.

[0266] In some embodiments, the at least one zero-power consumption device is located in the same or different cells.

[0267] In some embodiments, the apparatus further includes a first processing module 1530 configured to generate / modulate the first signal. For example, the first processing module 1530 is configured to perform at least one of steps 910, 920, 930, and 940. For another example, the first processing module 1530 is configured to perform at least one of steps 1210, 1220, and 1230.

[0268] In some embodiments, the apparatus further includes a first receiving module 1550 configured to receive signals or data from the zero-power device. For example, the first receiving module 1550 is configured to receive a synchronization request sent by the zero-power device. For example, the first receiving module 1550 is configured to receive a backscattered signal from the zero-power device. For example, the first receiving module 1550 is configured to receive signals or data from a primary transmitter of the zero-power device.

[0269] In summary, the device provided in the embodiment of the present application transmits the wake-up information through at least two groups of frequency domain unit groups. The first signal carrying the wake-up information is distributed more evenly in the frequency domain, avoiding the high peak power and interference problems caused by the excessive concentration of the energy of the first signal, which helps to improve the robustness of the first signal and helps to improve the transmission quality and reception quality of the wake-up information carried by the first signal. In addition, a transformation method for the first signal is designed, and the wake-up information corresponding to each group of frequency domain unit groups is processed separately, such as performing a second transformation or generating a frequency domain sequence separately for the wake-up information corresponding to each group of frequency domain unit groups, so as to further make the energy of the first signal finally transmitted evenly distributed, and further improve the robustness of the first signal.

[0270] Figure 16 shows a block diagram of a wake-up device provided by an exemplary embodiment of the present application. The device can be implemented as a zero-power device, or as part of a zero-power device, through software or hardware or a combination of both. The device includes a second receiving module 1610, a second processing module 1630, a third receiving module 1650, a second sending module 1670, and a third sending module 1690.

[0271] The second receiving module 1610 is used to receive a first signal, which carries wake-up information for waking up at least one of the zero-power consumption devices; wherein the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, and each group of frequency domain unit groups includes at least one frequency domain unit.

[0272] In some embodiments, the parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

[0273] In some embodiments, the parameters of the associated wake-up information include at least one of the following: an identifier of the zero-power device corresponding to the wake-up information; an index of the zero-power device corresponding to the wake-up information; a channel identifier corresponding to the wake-up information; a channel index corresponding to the wake-up information; and a signal segment corresponding to the wake-up information.

[0274] In some embodiments, the frequency domain resources corresponding to the wake-up information are determined based on at least one second transformation, where the second transformation refers to the transformation of the signal from the time domain to the frequency domain; or, the frequency domain resources corresponding to the wake-up information are determined based on a frequency domain sequence.

[0275] In some embodiments, the second transform comprises one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, z-transform.

[0276] In some embodiments, the first signal includes a time domain signal generated by a first transformation of a frequency domain signal; wherein the first transformation refers to a transformation of a signal from the frequency domain to the time domain.

[0277] In some embodiments, the first transform comprises one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

[0278] In some embodiments, the frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals;

[0279] The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

[0280] In some embodiments, the at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

[0281] In some embodiments, each group of frequency domain units includes one frequency domain unit, or includes multiple consecutive frequency domain units, or includes multiple discontinuous frequency domain units.

[0282] In some embodiments, the at least one zero-power consumption device is located in the same or different cells.

[0283] In some embodiments, the apparatus further includes a second processing module 1630 and a third receiving module 1650 ; the second processing module 1630 is configured to activate the third receiving module 1650 based on the wake-up information and / or the signal quality of the first signal.

[0284] In some embodiments, the second processing module 1630 is further configured to: detect the first signal to obtain the wake-up information; and / or measure the first signal to obtain the signal quality of the first signal. For example, the second processing module 1630 is configured to perform steps 960 and / or 970. For another example, the second processing module 1630 is configured to perform steps 1250 and / or 1260.

[0285] In some embodiments, the wake-up information includes time domain resource information and / or frequency domain resource information.

[0286] In some embodiments, the apparatus further includes a third receiving module 1650, configured to receive data and / or signals based on the time domain resource information and / or the frequency domain resource information.

[0287] In some embodiments, the apparatus further includes a second sending module 1670 configured to send data and / or signals based on the time domain resource information and / or the frequency domain resource information.

[0288] In some embodiments, the apparatus further includes a third sending module 1690 configured to backscatter based on the time domain resource information and / or the frequency domain resource information.

[0289] In summary, in the apparatus provided by the embodiment of the present application, the received first signal transmits wake-up information through at least two groups of frequency domain unit groups. The first signal carrying the wake-up information is distributed relatively evenly in the frequency domain, avoiding high peak power and interference problems caused by excessive concentration of energy in the first signal, helping to improve the robustness of the first signal, and helping to improve the transmission quality and reception quality of the wake-up information carried by the first signal. In addition, the frequency domain resources corresponding to the wake-up information are each determined separately, further evenly distributing the energy of the first signal and further improving the robustness of the first signal.

[0290] FIG17 shows a schematic structural diagram of a network device 1700 provided by an exemplary embodiment of the present application, including: a processor 1701 , a receiver 1702 , a transmitter 1703 , a memory 1704 and a bus 1705 .

[0291] The processor 1701 includes one or more processing cores. The processor 1701 executes various functional applications and information processing by running software programs and modules.

[0292] Receiver 1702 and transmitter 1703 can be implemented as a communication component, which can be a communication chip and is referred to as a transceiver. In some embodiments, receiver 1702 can be used to implement the functions and steps of the first receiving module 1550 described above, and transmitter 1703 can be used to implement the functions and steps of the first transmitting module 1510 described above.

[0293] The memory 1704 is connected to the processor 1701 via a bus 1705 .

[0294] The memory 1704 may be configured to store at least one instruction, and the processor 1701 may be configured to execute the at least one instruction to implement the various steps in the above method embodiment. The processor 1701 may be configured to implement the functions and steps of the above first processing module 1530 .

[0295] In addition, the memory 1704 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).

[0296] In some embodiments, the receiver 1702 receives signals / data independently, or the processor 1701 controls the receiver 1702 to receive signals / data, or the processor 1701 requests the receiver 1702 to receive signals / data, or the processor 1701 cooperates with the receiver 1702 to receive signals / data.

[0297] In some embodiments, the transmitter 1703 independently sends signals / data, or the processor 1701 controls the transmitter 1703 to send signals / data, or the processor 1701 requests the transmitter 1703 to send signals / data, or the processor 1701 cooperates with the transmitter 1703 to send signals / data.

[0298] FIG18 shows a schematic structural diagram of a zero-power consumption device 1800 provided by an exemplary embodiment of the present application, including: a processor 1801 , a receiver 1802 , a transmitter 1803 , a memory 1804 and a bus 1805 .

[0299] The processor 1801 includes one or more processing cores. The processor 1801 executes various functional applications and information processing by running software programs and modules.

[0300] Receiver 1802 and transmitter 1803 can be implemented as a communication component, which can be a communication chip and is referred to as a transceiver. In some embodiments, receiver 1802 can be used to implement the functions and steps of second receiving module 1610 and / or third receiving module 1650 described above, and transmitter 1803 can be used to implement the functions and steps of second transmitting module 1670 and / or third transmitting module 1690 described above.

[0301] The memory 1804 is connected to the processor 1801 via a bus 1805 .

[0302] The memory 1804 may be configured to store at least one instruction, and the processor 1801 may be configured to execute the at least one instruction to implement the various steps in the above method embodiment. The processor 1801 may be configured to implement the functions and steps of the above second processing module 1630.

[0303] In addition, the memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic or optical disks, EEPROM, EPROM, SRAM, ROM, magnetic storage, flash memory, PROM.

[0304] In some embodiments, the receiver 1802 receives signals / data independently, or the processor 1801 controls the receiver 1802 to receive signals / data, or the processor 1801 requests the receiver 1802 to receive signals / data, or the processor 1801 cooperates with the receiver 1802 to receive signals / data.

[0305] In some embodiments, the transmitter 1803 independently sends signals / data, or the processor 1801 controls the transmitter 1803 to send signals / data, or the processor 1801 requests the transmitter 1803 to send signals / data, or the processor 1801 cooperates with the transmitter 1803 to send signals / data.

[0306] In some embodiments, receiver 1802 is implemented as a WUR, or receiver 1802 is implemented as a main receiver, or receiver 1802 is implemented as a combined receiver of a WUR and a main receiver.

[0307] In some embodiments, transmitter 1803 is implemented as a main transmitter, or transmitter 1803 is implemented as a backscatter transmitter, or transmitter 1803 is implemented as a main transmitter and a backscatter transmitter.

[0308] In some embodiments, the processor 1801 and the receiver 1802 may be implemented as one module, or the processor 1801 may be implemented as a part of the receiver 1802 .

[0309] In some embodiments, the processor 1801 and the transmitter 1803 may be implemented as one module, or the processor 1801 may be implemented as a part of the transmitter 1803 .

[0310] In some embodiments, the zero-power device 1800 includes one or more processors 1801 .

[0311] In some embodiments, the zero-power device 1800 includes one or more receivers 1802 .

[0312] In some embodiments, the zero-power device 1800 includes one or more transmitters 1803 .

[0313] In an exemplary embodiment of the present application, a computer-readable storage medium is further provided, in which at least one program is stored. The at least one program is loaded and executed by the processor to implement the wake-up method provided by each of the above method embodiments.

[0314] In an exemplary embodiment of the present application, a chip is further provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the wake-up methods provided by the above-mentioned various method embodiments.

[0315] In an exemplary embodiment of the present application, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device is enabled to execute the above-mentioned wake-up method.

[0316] In an exemplary embodiment of the present application, a computer program is further provided. The computer program includes computer instructions. A processor of a computer device executes the computer instructions, so that the computer device executes the above-mentioned wake-up method.

[0317] 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.

[0318] 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 wake-up method, characterized in that: The method is performed by a network device, and the method includes: Sending a first signal, wherein the first signal carries wake-up information for waking up at least one zero-power consumption device; The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

2. The method according to claim 1, characterized in that The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, Different frequency domain unit groups are associated with different parameters of the wake-up information.

3. The method according to claim 2, characterized in that The parameters of the associated wake-up information include at least one of the following: An identifier of the zero-power consumption device corresponding to the wake-up information; An index of the zero-power consumption device corresponding to the wake-up information; A channel identifier corresponding to the wake-up information; The channel index corresponding to the wake-up information; The signal segment corresponding to the wake-up information.

4. The method according to any one of claims 1 to 3, characterized in that: The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

5. The method according to claim 4, characterized in that The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

6. The method according to claim 4 or 5, characterized in that: The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain units; or, The frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

7. The method according to claim 6, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals is generated based on at least one second transformation by the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups; The second transformation refers to the transformation of the signal from the time domain to the frequency domain.

8. The method according to claim 7, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

9. The method according to claim 6, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals includes a frequency domain sequence determined based on the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups.

10. The method according to any one of claims 1 to 9, characterized in that: The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

11. The method according to any one of claims 1 to 10, characterized in that: Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

12. The method according to any one of claims 1 to 11, characterized in that: The at least one zero-power consumption device is located in the same cell or in a different cell.

13. A wake-up method, characterized in that: The method is performed by a zero-power consumption device, and the method includes: receiving a first signal, wherein the first signal carries wake-up information for waking up at least one of the zero-power consumption devices; The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

14. The method according to claim 13, characterized in that The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, Different frequency domain unit groups are associated with different parameters of the wake-up information.

15. The method according to claim 14, characterized in that The parameters of the associated wake-up information include at least one of the following: An identifier of the zero-power consumption device corresponding to the wake-up information; An index of the zero-power consumption device corresponding to the wake-up information; A channel identifier corresponding to the wake-up information; The channel index corresponding to the wake-up information; The signal segment corresponding to the wake-up information.

16. The method according to any one of claims 13 to 15, characterized in that: The frequency domain resource corresponding to the wake-up information is determined based on at least one second transformation, where the second transformation refers to transformation of a signal from a time domain to a frequency domain; or, The frequency domain resources corresponding to the wake-up information are determined based on the frequency domain sequence.

17. The method according to claim 16, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

18. The method according to any one of claims 13 to 17, characterized in that: The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

19. The method according to claim 18, characterized in that The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

20. The method according to claim 18 or 19, characterized in that The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain units; or, The frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

21. The method according to any one of claims 13 to 20, characterized in that: The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

22. The method according to any one of claims 13 to 21, characterized in that: Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

23. The method according to any one of claims 13 to 22, characterized in that: The at least one zero-power consumption device is located in the same cell or in a different cell.

24. The method according to any one of claims 13 to 23, characterized in that: The method further comprises: Based on the wake-up information and / or the signal quality of the first signal, a main receiver of the zero-power consumption device is started.

25. The method according to claim 24, characterized in that Before starting the main receiver of the zero-power consumption device, the method further includes: detecting the first signal and acquiring the wake-up information; and / or, The first signal is measured to obtain signal quality of the first signal.

26. The method according to claim 24 or 25, characterized in that The wake-up information includes time domain resource information and / or frequency domain resource information; The method further comprises at least one of the following operations: Based on the time domain resource information and / or the frequency domain resource information, receiving data through the main receiver; Based on the time domain resource information and / or the frequency domain resource information, sending data through a main transmitter of the zero-power consumption device; Based on the time domain resource information and / or the frequency domain resource information, data is sent through a backscatter transmitter of the zero-power consumption device.

27. A wake-up device, characterized in that: The device comprises: A first sending module, configured to send a first signal, wherein the first signal carries wake-up information for waking up at least one zero-power consumption device; The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

28. The device according to claim 27, characterized in that The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, Different frequency domain unit groups are associated with different parameters of the wake-up information.

29. The device according to claim 28, characterized in that The parameters of the associated wake-up information include at least one of the following: An identifier of the zero-power consumption device corresponding to the wake-up information; An index of the zero-power consumption device corresponding to the wake-up information; A channel identifier corresponding to the wake-up information; The channel index corresponding to the wake-up information; The signal segment corresponding to the wake-up information.

30. The device according to any one of claims 27 to 29, characterized in that The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

31. The device according to claim 30, characterized in that The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

32. The device according to claim 30 or 31, characterized in that The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

33. The device according to claim 32, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals is generated based on at least one second transformation by the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups; The second transformation refers to the transformation of the signal from the time domain to the frequency domain.

34. The device according to claim 33, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

35. The device according to claim 32, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals includes a frequency domain sequence determined based on the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups.

36. The device according to any one of claims 27 to 35, characterized in that The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

37. The device according to any one of claims 27 to 36, characterized in that Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

38. The device according to any one of claims 27 to 37, characterized in that The at least one zero-power consumption device is located in the same cell or in a different cell.

39. A wake-up device, characterized in that: The device comprises: A second receiving module, configured to receive a first signal, wherein the first signal carries wake-up information for waking up at least one of the zero-power consumption devices; The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, and each frequency domain unit group includes at least one frequency domain unit.

40. The device according to claim 39, characterized in that The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

41. The device according to claim 40, characterized in that The parameters of the associated wake-up information include at least one of the following: the identifier of the zero-power consumption device corresponding to the wake-up information; the index of the zero-power consumption device corresponding to the wake-up information; the channel identifier corresponding to the wake-up information; the channel index corresponding to the wake-up information; and the signal segment corresponding to the wake-up information.

42. The device according to any one of claims 39 to 41, characterized in that The frequency domain resource corresponding to the wake-up information is determined based on at least one second transformation, where the second transformation refers to transformation of a signal from a time domain to a frequency domain; or, The frequency domain resources corresponding to the wake-up information are determined based on the frequency domain sequence.

43. The device according to claim 42, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

44. The device according to any one of claims 39 to 43, characterized in that The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

45. The device according to claim 44, characterized in that The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

46. ​​The device according to claim 44 or 45, characterized in that The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

47. The device according to any one of claims 39 to 46, characterized in that The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

48. The device according to any one of claims 39 to 47, characterized in that Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

49. The device according to any one of claims 39 to 48, characterized in that The at least one zero-power consumption device is located in the same cell or in a different cell.

50. The device according to any one of claims 39 to 49, characterized in that The device also includes a second processing module and a third receiving module; The second processing module is used to start the third receiving module based on the wake-up information and / or the signal quality of the first signal.

51. The device according to claim 50, characterized in that The second processing module is further used for: detecting the first signal to obtain the wake-up information; and / or measuring the first signal to obtain the signal quality of the first signal.

52. The device according to claim 50 or 51, characterized in that The wake-up information includes time domain resource information and / or frequency domain resource information; The device further comprises at least one of the following: A third receiving module, configured to receive data and / or signals based on the time domain resource information and / or the frequency domain resource information; A second sending module, used to send data and / or signals based on the time domain resource information and / or the frequency domain resource information; The third sending module is used for backscattering based on the time domain resource information and / or the frequency domain resource information.

53. A network device, characterized in that: The network equipment includes: processor; a transmitter connected to the processor; a memory for storing executable instructions for the processor; The transmitter is configured to send a first signal, which carries wake-up information for waking up at least one zero-power consumption device, and the frequency domain resources corresponding to the wake-up information include at least two groups of frequency domain unit groups, each group of frequency domain unit groups includes at least one frequency domain unit.

54. The network device according to claim 53, characterized in that: The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

55. The network device according to claim 54, characterized in that The parameters of the associated wake-up information include at least one of the following: the identifier of the zero-power consumption device corresponding to the wake-up information; the index of the zero-power consumption device corresponding to the wake-up information; the channel identifier corresponding to the wake-up information; the channel index corresponding to the wake-up information; and the signal segment corresponding to the wake-up information.

56. The network device according to any one of claims 53 to 55, characterized in that: The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

57. The network device according to claim 56, characterized in that The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

58. The network device according to claim 56 or 57, characterized in that: The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

59. The network device according to claim 58, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals is generated based on at least one second transformation by the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups; The second transformation refers to the transformation of the signal from the time domain to the frequency domain.

60. The network device according to claim 59, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

61. The network device according to claim 58, characterized in that The at least two groups of frequency domain unit groups correspond one-to-one to the at least two groups of frequency domain signals; The i-th group of frequency domain signals in the at least two groups of frequency domain signals includes a frequency domain sequence determined based on the wake-up information corresponding to the i-th group of frequency domain unit groups in the at least two groups of frequency domain unit groups.

62. The network device according to any one of claims 53 to 61, characterized in that: The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

63. The network device according to any one of claims 53 to 62, characterized in that: Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

64. The network device according to any one of claims 53 to 63, characterized in that: The at least one zero-power consumption device is located in the same cell or in a different cell.

65. A zero-power consumption device, characterized in that: The zero-power consumption device comprises: a first receiver; The first receiver is configured to receive a first signal, the first signal carrying wake-up information for waking up at least one of the zero-power consumption devices; The frequency domain resources corresponding to the wake-up information include at least two frequency domain unit groups, each frequency domain unit group includes at least one frequency domain unit Yuan.

66. The zero-power consumption device according to claim 65, characterized in that: The parameters of the wake-up information associated with different frequency domain unit groups are the same; or, the parameters of the wake-up information associated with different frequency domain unit groups are different.

67. The zero-power consumption device according to claim 66, characterized in that: The parameters of the associated wake-up information include at least one of the following: the identifier of the zero-power consumption device corresponding to the wake-up information; the index of the zero-power consumption device corresponding to the wake-up information; the channel identifier corresponding to the wake-up information; the channel index corresponding to the wake-up information; and the signal segment corresponding to the wake-up information.

68. The zero-power consumption device according to any one of claims 65 to 67, characterized in that: The frequency domain resources corresponding to the wake-up information are determined based on at least one second transformation, where the second transformation refers to transformation of a signal from a time domain to a frequency domain; or, the frequency domain resources corresponding to the wake-up information are determined based on a frequency domain sequence.

69. The zero-power consumption device according to claim 68, characterized in that The second transformation includes one of the following: Fourier transform FT, fast Fourier transform FFT, discrete Fourier transform DFT, Laplace transform, and z transform.

70. The zero-power consumption device according to any one of claims 65 to 69, characterized in that: The first signal comprises a time domain signal generated by a first transformation of a frequency domain signal; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

71. The zero-power consumption device according to claim 70, characterized in that: The first transformation includes one of the following: inverse Fourier transform IFT, inverse fast Fourier transform IFFT, inverse Laplace transform, inverse z transform.

72. The zero-power consumption device according to claim 70 or 71, characterized in that: The frequency domain signal includes at least two groups of frequency domain signals corresponding to the at least two groups of frequency domain unit groups; or, the frequency domain signal includes a multiplexed signal of the at least two groups of frequency domain signals and other frequency domain signals; The other frequency domain signals refer to frequency domain signals other than the at least two groups of frequency domain signals.

73. The zero-power consumption device according to any one of claims 65 to 72, characterized in that: The at least two frequency domain unit groups respectively include different frequency domain units, and the at least two frequency domain unit groups are adjacent or non-adjacent.

74. The zero-power consumption device according to any one of claims 65 to 73, characterized in that: Each group of frequency domain units includes one frequency domain unit, or includes a plurality of continuous frequency domain units, or includes a plurality of discontinuous frequency domain units.

75. The zero-power consumption device according to any one of claims 65 to 74, characterized in that: The at least one zero-power consumption device is located in the same cell or in a different cell.

76. The zero-power consumption device according to any one of claims 65 to 75, characterized in that: The zero-power consumption device further comprises: a processor and a second receiver; The processor is configured to activate the second receiver based on the wake-up information and / or a signal quality of the first signal.

77. The zero-power consumption device according to claim 76, characterized in that The processor is further configured to: detecting the first signal to obtain the wake-up information; and / or measuring the first signal to obtain a signal quality of the first signal.

78. The zero-power consumption device according to claim 76 or 77, characterized in that: The wake-up information includes time domain resource information and / or frequency domain resource information; The second receiver is configured to receive data and / or signals based on the time domain resource information and / or the frequency domain resource information; and / or, The zero-power consumption device further includes a first transmitter, wherein the first transmitter is configured to send data and / or signals based on the time domain resource information and / or the frequency domain resource information; and / or, The zero-power consumption device further includes a second transmitter configured to backscatter based on the time domain resource information and / or the frequency domain resource information.

79. A computer-readable storage medium, characterized in that The readable storage medium stores executable instructions, and the executable instructions are loaded and executed by a processor to implement the wake-up method as described in any one of claims 1 to 12 or 13 to 26.

80. A chip, characterized in that: The chip includes a programmable logic circuit or a program, and the chip is used to implement the wake-up method as described in any one of claims 1 to 12 or 13 to 26.

81. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the wake-up method as described in any one of claims 1 to 12 or 13 to 26.

82. A computer program, characterized in that The computer program includes computer instructions, and a processor of a computer device executes the computer instructions, so that the computer device executes the wake-up method according to any one of claims 1 to 12 or 13 to 26.

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