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

Abstract

The present application relates to the field of low power consumption, and discloses a wake-up method and apparatus, a device, and a medium. The method is executed by a network device, and the method comprises: sending a first signal and a second signal, wherein the first signal and the second signal are used for waking up a main receiver of a low-power-consumption device, and the second signal carries wake-up information. The main receiver of the low-power-consumption device is woken up by sending the first signal and the second signal, thereby guaranteeing the transmission quality of the second signal and further guaranteeing the transmission quality and reliability of the wake-up information.

Description

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

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

[0002] Wake-up signals received by low-power devices are typically transmitted using simple waveforms, characterized by low-power reception and detection. However, such simple waveforms can lead to large errors in demodulation and decoding, making them ineffective for transmitting wake-up information.

[0003] Therefore, how to improve the transmission quality of wake-up information is a problem that needs to be solved.

[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] A first signal and a second signal are sent, where the first signal and the second signal are used to wake up a main receiver of a low-power device; wherein the second signal carries wake-up information.

[0008] According to another aspect of an embodiment of the present application, a method for waking up is provided, the method being performed by a low-power device, the method comprising:

[0009] A first signal and a second signal are received, where the first signal and the second signal are used to wake up a main receiver of a low-power device; wherein the second signal carries wake-up information.

[0010] According to another aspect of an embodiment of the present application, a wake-up device is provided, the device comprising:

[0011] The sending module is used to send a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device; wherein the second signal carries wake-up information.

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

[0013] The first receiving module is configured to receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device; wherein the second signal carries wake-up information.

[0014] According to another aspect of an embodiment of the present application, a network device is provided, the network device including:

[0015] processor;

[0016] a transmitter connected to the processor;

[0017] a memory for storing executable instructions for the processor;

[0018] The transmitter is configured to send a first signal and a second signal, the first signal and the second signal are used to wake up a main receiver of the low-power device, and the second signal carries wake-up information.

[0019] According to another aspect of an embodiment of the present application, a low-power consumption device is provided, the low-power consumption device including: a first receiver;

[0020] The first receiver is configured to receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of the low-power device, and the second signal carries wake-up information.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0026] The primary receiver of the low-power device is awakened by sending a first signal and a second signal. By adding the first signal to the second signal, which originally carries the wake-up information, to wake up the primary receiver, the primary receiver can obtain more information for wake-up, significantly improving the wake-up success rate and efficiency of the low-power device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 creative work.

[0028] FIG1 shows a schematic diagram of a receiver provided by an exemplary embodiment of the present application;

[0029] FIG2 shows a schematic diagram of a discontinuous reception state provided by the related art;

[0030] FIG3 shows a schematic diagram of a low-power communication system provided by an exemplary embodiment of the present application;

[0031] FIG4 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application and a schematic diagram of a receiving system of a low-power device;

[0032] FIG5 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0033] FIG6 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0034] FIG7 shows a schematic diagram of generating a first signal provided by an exemplary embodiment of the present application;

[0035] FIG8 shows a schematic diagram of generating a second signal provided by an exemplary embodiment of the present application;

[0036] FIG9 is a schematic diagram showing a correspondence between a first signal and a second signal provided by an exemplary embodiment of the present application;

[0037] FIG10 is a schematic diagram showing a correspondence between a first signal and a second signal provided by an exemplary embodiment of the present application;

[0038] FIG11 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0039] FIG12 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0040] FIG13 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0041] FIG14 is a schematic diagram showing a flowchart of a wake-up method provided by an exemplary embodiment of the present application;

[0042] FIG15 shows a structural block diagram of a wake-up device provided by an exemplary embodiment of the present application;

[0043] FIG16 shows a structural block diagram of a wake-up device provided by an exemplary embodiment of the present application;

[0044] FIG17 shows a schematic structural diagram of a network device provided by an exemplary embodiment of the present application;

[0045] FIG18 shows a schematic structural diagram of a low-power consumption device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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".

[0049] First, the communication technology involved in the embodiments of this application is introduced:

[0050] Typically, a terminal device has a single receiver. This receiver receives signals and data. This means that the receiver must remain powered on for extended periods, or even continuously monitoring, to meet communication needs. However, such a receiver inherently requires high power, and the power consumption associated with prolonged operation or continuous monitoring is substantial. Clearly, the power consumption of terminal devices is a significant issue that must be addressed.

[0051] The discontinuous reception (DRX) transmission mechanism is a communication technology that can be used to reduce the power consumption of terminal devices. Its main principle is to configure a DRX cycle (DRX Cycle) for a terminal device in the radio resource control connected state (RRC_Connected), and use the DRX cycle to achieve discontinuous reception of the terminal device in the time domain. The DRX cycle consists of an active time (Active Time) and an inactive time (Inactive Time). The active time is after DRX is turned on, or before the inactive timer is turned on, or when the inactive timer does not expire. The active time is also called the on-duration, and the inactive time is also called the off-duration (Opportunity for DRX).

[0052] As shown in Figure 1, a terminal device that applies the DRX transmission mechanism wakes up in each DRX cycle, monitors and receives the Physical Downlink Control Channel (PDCCH) during the active time, and does not monitor or receive the PDCCH during the inactive time, so as to achieve the effect of reducing power consumption.

[0053] However, the terminal device does not need to receive signals or data in every DRX cycle. Therefore, if the terminal device wakes up to monitor in every DRX cycle, some meaningless power consumption will be wasted.

[0054] Therefore, to further reduce the power consumption of terminal devices based on the DRX transmission mechanism, a wake-up signal (WUS) mechanism is introduced to dynamically wake up the receiver of the terminal device. If the terminal device's receiver receives a WUS, it wakes up in the next DRX cycle and monitors or receives the PDCCH during the activation time. If the terminal device's receiver does not receive a WUS, it remains in a sleep state for the next one or more DRX cycles until it receives a WUS. This design avoids the waste of power consumption caused by the terminal device continuously and fixedly monitoring the PDCCH in each DRX cycle, and achieves further energy saving of the terminal device through dynamic wake-up.

[0055] In addition, adding an auxiliary receiver to the terminal device is also a communication technology that can be used to reduce the power consumption of the terminal device. As shown in Figure 2, on the basis that the terminal device has a receiver 101, another receiver 103 is introduced. For the sake of distinction, the receiver 101 can be called the main receiver 101 or the first receiver 101, and the receiver 103 can be called the auxiliary receiver 103 or the second receiver 103 or the wake-up receiver (WUR) 103. The main receiver 101 and the auxiliary receiver 103 are used in this application, but it does not mean to limit the naming. The power of the auxiliary receiver 103 is much lower than that of the receiver 101. The newly introduced auxiliary receiver 103 can replace the main receiver 101 to receive part of the signal, that is, some operations that originally had to be performed by the main receiver 101 can be performed by the auxiliary receiver 103. Furthermore, the primary receiver 101 can remain off unless instructed to do so by the secondary receiver 103, thus avoiding unnecessary power consumption when the primary receiver 101 does not need to receive signals or data. Since the secondary receiver 103 consumes less power, its replacement can significantly reduce the overall power consumption of the terminal device, thereby achieving energy conservation.

[0056] If the DRX transmission mechanism, the WUS mechanism, and the introduction of a secondary receiver are combined, it is clear that even better energy-saving effects can be achieved. If the secondary receiver 103 receives a WUS, it dynamically wakes up the primary receiver 101. If the secondary receiver 103 does not receive a WUS, it does not wake up the primary receiver 101, leaving the primary receiver 101 in a powered-down state. Because the secondary receiver 103 does not need to be turned on or off to save power like the primary receiver 101, but can be activated by the WUS at any time and receive wake-up information, compared to the solution where the primary receiver 101 receives the WUS, receiving the WUS by the secondary receiver 103 can reduce power consumption even further. Therefore, the low-power characteristics of the secondary receiver 103 can further enhance the energy-saving effects of the DRX transmission mechanism and the WUS mechanism, further reducing the overall power consumption of the terminal device.

[0057] To achieve its low power characteristics, the auxiliary receiver 103 is typically designed with minimalist hardware. The signals received by the auxiliary receiver 103 are typically simple waveforms. If the auxiliary receiver 103 is configured to receive the WUS for energy conservation, the WUS also needs to be transmitted using a simple waveform, such as an envelope signal generated by ASK modulation.

[0058] 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. Therefore, the terminal device including the auxiliary receiver 103 can be passive or semi-passive. The demodulation of the envelope signal can also be accomplished based on the device's built-in battery or power supply system. Therefore, the terminal device including the auxiliary receiver 103 can also be active.

[0059] The auxiliary receiver 103 can be combined with the main receiver 101 as an additional module of the main receiver 101; or, the auxiliary receiver 103 can be a separate module of the terminal device, such as a wake-up function module.

[0060] However, the simple waveform received by the auxiliary receiver 103 is prone to generate large demodulation errors and decoding errors, which are very detrimental to the transmission quality of the wake-up information carried by the WUS.

[0061] Next, a low-power communication system 300 is exemplarily introduced. The low-power communication system 300 includes a low-power device 320 and a network device 340, as shown in FIG3 .

[0062] The low-power device 320 includes the primary receiver 101 and the secondary receiver 103 shown in FIG2 . Optionally, the low-power device 320 further includes an energy harvesting module 321 . Optionally, the low-power device 320 further includes a backscatter communication module 322 . Optionally, the low-power device 320 further includes a low-power computing module 323 . Optionally, the low-power device 320 further includes a sensor module 324 . Optionally, the low-power device 320 further includes a memory 325 . Optionally, in addition to the primary receiver 101 and the secondary receiver 103 , the low-power device 320 further includes one or more of the energy harvesting module 321 , the backscatter communication module 322 , the low-power computing module 323 , the sensor module 324 , and the memory 325 .

[0063] Exemplarily, the energy collection module 321 can collect energy carried by radio waves in space to provide energy for driving the various modules of the low-power device 320. After the low-power device 320 obtains energy, it can receive signals from the network device 340 through the auxiliary receiver 103 and the main receiver 101, and can also send data to the network device 340 through the backscatter communication module 322. The data sent by the low-power device 320 can be data stored by itself (such as an identity identifier or pre-written information, such as the production date, brand, manufacturer, etc. of the product). The sensor module 324 can include various sensors, and the low-power device 320 can report the data collected by various sensors based on the low-power mechanism. The memory 325 is used to store some basic information (such as item identification, etc.) or obtain sensor data such as ambient temperature and ambient humidity.

[0064] The low-power device 320 can use the low-power computing module 323 to implement simple signal demodulation, decoding or encoding, modulation and other simple computing tasks. The hardware design can be very simple, making the low-power device 320 very low in cost and small in size.

[0065] It should be understood that the modules included in the low-power device 320 shown in FIG3 are merely examples and not limiting.

[0066] Considering the energy source and usage of the low-power device 320 , the low-power device 320 may be implemented as a passive device, a semi-passive device, or an active device.

[0067] Passive devices do not require internal batteries and instead generate an induced current through electromagnetic induction, which drives the operation of the device's various modules. Semi-passive devices do not have conventional batteries themselves, but instead use a radio frequency energy harvesting module to harvest radio wave energy and store the harvested energy in an energy storage unit, typically a capacitor. This energy is then used to drive the operation of the device's various modules. Active devices can have internal batteries, which drive the operation of the device's various modules.

[0068] Considering the transmitter type of the low-power device 320 , the low-power device 320 may be implemented as a backscatter-based device, an active transmitter-based device, or a device having both backscatter and active transmitters.

[0069] Among them, backscatter-based devices do not have active transmitters for active transmission, but only have backscatter transmitters. Devices based on active transmitters use active transmitters with active transmission capabilities for uplink data transmission. Active transmitters can be, for example, ultra-low-power ASK transmitters, ultra-low-power FSK transmitters, etc. Devices with both backscatter and active transmitters can support both backscatter and active transmitters. Such low-power devices can determine whether to use backscatter or active transmitters for active transmission based on different situations (such as different power levels, different available environmental energy levels), or based on the scheduling of network devices.

[0070] The low-power device 320 may also be referred to as an ultra-low-power device, or a zero-power device, or a Passive IoT device, or an Ambient Power Enabled Internet of Things (Ambient IoT / A-IoT) device.

[0071] Low-power devices 320 include, but are not limited to, handheld devices, wearable devices, in-vehicle devices, and IoT devices. Low-power devices 320 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, a mixed reality (MR) terminal, a wearable device, a handle, an electronic tag, and a controller.

[0072] The network device 340 can send one or more of a wireless power supply signal, a downlink communication signal, and data to the low-power device 320, and can also receive signals and / or data from the low-power device 320. The signal from the low-power device 320 can be a signal actively transmitted by the low-power device 320 or a backscattered signal.

[0073] The network device 340 includes but is not limited to: cellular network devices, such as network devices / base station devices in the fifth generation (5G) mobile communication system, network devices / base station devices in the 6G mobile communication system, and network devices / base station devices in the Beyond Fifth Generation (B5G) mobile communication system; network devices in the Wireless Fidelity (Wi-Fi) system, network devices in the Wireless Local Area Networks (WLAN) system, such as access points (AP), routers, mobile access points, etc., the mobile access point is, for example, a mobile phone; and readers and writers in the Radio Frequency Identification (RFID) system.

[0074] 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), 5G systems, B5G systems, 6G systems, cellular IoT systems, and cellular passive IoT systems. It can also be applied to subsequent evolution systems of 5G systems and subsequent evolution systems of 6G systems. Among them, "5G" can also be referred to as "5G NR" or just "NR".

[0075] The technical solutions provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network can include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.

[0076] 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.

[0077] 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 low-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.

[0078] FIG4 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by the network device shown in FIG1 or FIG3 . The method includes:

[0079] Step 410: Send a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of the low-power device, wherein the second signal carries wake-up information.

[0080] The low-power device may be a terminal device as shown in FIG1 or FIG3 .

[0081] In some embodiments, the second signal carries wake-up information. Optionally, the wake-up information is implemented as indication information.

[0082] In some embodiments, the wake-up information carried by the second signal is used to wake up a main receiver of a low-power device, or the wake-up information carried by the second signal is used to wake up main receivers of multiple low-power devices.

[0083] In some embodiments, the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to wake up the primary receiver, or the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to turn on the primary receiver.

[0084] In some embodiments, the first signal is associated with the second signal. Exemplarily, the reception of the second signal is associated with the first signal, and / or the detection of the second signal is associated with the first signal.

[0085] In summary, the method provided in the embodiments of the present application wakes up the primary receiver of a low-power device by sending a first signal and a second signal. By adding the first signal to the second signal, which already carries the wake-up information, to wake up the primary receiver, the primary receiver can obtain more information for wake-up, significantly improving the wake-up success rate and efficiency of the low-power device.

[0086] In some embodiments, step 410 may also be implemented as step 510, as shown in FIG5 . FIG5 is a flow chart of a wake-up method provided by an exemplary embodiment of the present application, the method being executed by the network device shown in FIG1 , FIG3 , or FIG4 , and comprising:

[0087] Step 510: Send a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device, wherein the second signal carries wake-up information.

[0088] In some embodiments, a first signal and a second signal are associated with each other. The first signal and the second signal are used to wake up the main receiver of the low-power device. Specifically, the first signal and its associated second signal are used together to wake up the main receiver of the low-power device. The second signal is primarily used to carry wake-up information. Exemplarily, the first signal can be used to assist in the reception and / or detection of the second signal.

[0089] In some embodiments, the first signal is sent periodically. The transmission period of the first signal may be fixed or variable, i.e., the durations of different transmission periods of the first signal may be the same or different. The transmission period of the first signal may be configured by the network device, determined by the low-power device, or determined by negotiation between the network device and the low-power device, and this application does not limit this.

[0090] Optionally, the association relationship between the first signal and the second signal in the present application can specifically be the relationship between the transmission period of the first signal and the second signal. For example, within each transmission period of the first signal, the network device can send one second signal, or the network device can send multiple second signals. Of course, if the network device does not need to wake up the low-power device within a certain transmission period, it is also possible not to send the second signal within the transmission period. The first signal within each transmission period is used to wake up the low-power device together with the second signal within the transmission period.

[0091] Optionally, the durations of the sending periods of different first signals are equal or different.

[0092] Optionally, within each sending cycle of the first signal, the network device sends a second signal, which can provide a more suitable and targeted first signal for each second signal, improve the correlation accuracy between the first signal and the second signal, and help to specifically improve the transmission quality of the wake-up information carried by each second signal.

[0093] Optionally, if the network device sends multiple second signals within each sending cycle of the first signal, the number of first signals sent can be saved, the association efficiency of the first signal can be improved, the time for waking up the target terminal can be saved, and the demodulation performance and decoding performance for more second signals can be guaranteed while the first signal consumes less transmission resources, thereby improving the wake-up efficiency.

[0094] Optionally, when a network device sends multiple second signals within a certain transmission cycle, the multiple second signals can be used to wake up the same terminal or terminal group. By repeatedly sending multiple second signals to the same terminal or terminal group within a transmission cycle, the success rate of receiving the second signals can be increased, thereby increasing the success rate of waking up the main receiver.

[0095] Optionally, when a network device sends multiple second signals within a certain sending cycle, the multiple second signals can also be used to wake up different terminals or terminal groups. The terminal receiving the second signal can determine whether there is a second signal belonging to it in the multiple second signals based on one or more of the terminal identification (Identify, ID), terminal group ID, terminal group index (Index), etc. carried by each second signal. Alternatively, the terminal receiving the second signal can determine whether there is a second signal belonging to it in the multiple second signals based on one or more of the terminal ID, terminal group ID, terminal group index, second signal index, second signal identification, etc. carried by the first signal associated with the second signal. By sending wake-up information for multiple terminals or terminal groups within a sending cycle, the efficiency of sending the wake-up information can be improved, the number of signals sent can be saved, and the time for waking up the target terminal can be saved.

[0096] In some embodiments, there are multiple first signals within a first signal transmission cycle, wherein each first signal is associated with a portion of the second signals within the current transmission cycle, and the second signals associated with different first signals are different or overlap.

[0097] In some embodiments, the time domain resource of the first signal includes n time domain units; where n is an integer greater than or equal to 1.

[0098] 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.

[0099] 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.

[0100] In some embodiments, the first signal is generated by n groups of first frequency domain signals respectively undergoing a first transformation, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; wherein the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0101] 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.

[0102] In some embodiments, n groups of first frequency domain signals are generated by n groups of bit groups undergoing a second transformation respectively; wherein the second transformation refers to the transformation of the signal from the time domain to the frequency domain, and a group of bit groups includes one or more bits.

[0103] 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.

[0104] In some embodiments, the first signal is generated by modulating n groups of bits respectively, and the n time domain units correspond one-to-one to the n groups of bits.

[0105] In some embodiments, the first signal is sent periodically or aperiodically.

[0106] In some embodiments, the second signal carries wake-up information. Optionally, the wake-up information is implemented as indication information.

[0107] In some embodiments, the wake-up information carried by the second signal is used to wake up a main receiver of a low-power device, or the wake-up information carried by the second signal is used to wake up main receivers of multiple low-power devices.

[0108] In some embodiments, the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to wake up the primary receiver, or the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to turn on the primary receiver.

[0109] In some embodiments, the time domain resource of the second signal includes m time domain units; wherein m is an integer greater than or equal to 1, and n is equal to or different from m.

[0110] In some embodiments, the second signal is generated by m groups of second frequency domain signals respectively undergoing a first transformation, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; wherein the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0111] In some embodiments, m groups of second frequency domain signals are generated by m groups of bit groups undergoing a second transformation respectively; wherein a group of bit groups includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0112] In some embodiments, the second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; wherein a group of bit groups includes one or more bits.

[0113] In some embodiments, the n time domain units are different from the m time domain units, which can also be understood as the time domain resources of the first signal being different from the time domain resources of the second signal. Optionally, the n time domain units differ from the m time domain units in at least one of the following: a different quantity (i.e., n is not equal to m); a different starting position of the n time domain units from a starting position of the m time domain units; and a different ending position of the n time domain units from an ending position of the m time domain units.

[0114] In some embodiments, the frequency domain resources of the first signal are different from the frequency domain resources of the second signal. The frequency domain resources of the first signal are referred to as first frequency domain resources, and the frequency domain resources of the second signal are referred to as second frequency domain resources.

[0115] Optionally, there is at least one difference between the first frequency domain resource and the second frequency domain resource: the first frequency domain resource and the second frequency domain resource include a different number of frequency domain units, that is, the width of the frequency domain resources is different; the frequency domain starting positions of the first frequency domain resource and the second frequency domain resource are different; the frequency domain ending positions of the first frequency domain resource and the second frequency domain resource are different.

[0116] Optionally, the center frequency of the first frequency domain resource is aligned with the center frequency of the second frequency domain resource, or the upper frequency of the first frequency domain resource is aligned with the upper frequency of the second frequency domain resource, or the lower frequency of the first frequency domain resource is aligned with the lower frequency of the second frequency domain resource. Such a design can make demodulation and decoding of the second signal easier.

[0117] The frequency domain unit includes at least one of a carrier, a bandwidth part (Bandwidth Part, BWP), a subband, a subchannel, a physical resource block (Physical Resource Block, PRB), a subcarrier, and a unit based on other frequency domain units.

[0118] In some embodiments, the synchronization result and / or automatic gain control (AGC) result of the first signal is used to assist in receiving and / or detecting the second signal. Exemplarily, the synchronization result includes a time domain synchronization result (or clock information) and / or a frequency domain synchronization result (or frequency offset estimation result).

[0119] In some embodiments, the time domain synchronization result of the first signal is obtained by using the envelope detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the time domain synchronization result of the first signal. Exemplarily, the second signal is time-domain calibrated based on clock information obtained by envelope detection of the first signal, and the second signal is received and / or detected based on the calibrated time domain resources.

[0120] In some embodiments, the frequency domain synchronization result of the first signal is obtained by using a correlation detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the frequency domain synchronization result of the first signal. Exemplarily, the second signal is calibrated in the frequency domain based on clock information obtained by correlation detection of the first signal, and the second signal is received and / or detected based on the calibrated frequency domain resources.

[0121] In some embodiments, the first signal is an auxiliary signal of the second signal, or the first signal is a reference signal, or the first signal is a measurement signal, or the first signal is a synchronization signal.

[0122] In some embodiments, the correspondence between the first signal and the second signal satisfies one of the following:

[0123] The first signal and the second signal have a one-to-one correspondence, which can also be understood as one first signal being used to assist in the reception and / or detection of one second signal;

[0124] The first signal and the second signal have a one-to-many correspondence relationship, which can also be understood as one first signal being used to assist in the reception and / or detection of multiple second signals;

[0125] Within a cycle, the first signal and the second signal have a one-to-one correspondence. This can also be understood as a first signal being used to assist in the reception and / or detection of a second signal within its own transmission cycle.

[0126] Within a cycle, the first signal and the second signal have a one-to-many correspondence relationship. This can also be understood as one first signal being used to assist in the reception and / or detection of multiple second signals within its own transmission cycle.

[0127] Here, one period refers to a sending period of the first signal.

[0128] In summary, the method provided in the embodiment of the present application wakes up the main receiver of the low-power device by sending a first signal and a second signal. By adding a first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided in the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signals sent can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0129] In some embodiments, step 510 may also be implemented as step 630. In addition to step 630, the wake-up method may further include at least one of step 610 and step 620, as shown in FIG6 . FIG6 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by the network device shown in FIG1 or FIG2 or FIG3 or FIG4 or FIG5 . The method includes:

[0130] Step 610: The network device obtains a first signal based on n groups of bits;

[0131] In some embodiments, the n groups of bits are divided by a first sequence. Optionally, the first sequence is agreed upon by a communication protocol, or generated by a network device. Optionally, the generation method of the first sequence is agreed upon by a communication protocol, or determined by a network device.

[0132] In some embodiments, the first sequence is a random sequence, a pseudo-random sequence, or a preset sequence.

[0133] In some embodiments, the bit length of the first sequence is one bit or multiple bits, which can also be understood as the first sequence corresponding to one or more bits, or the first sequence corresponding to one bit of information or multiple bits of information. This embodiment of the application takes the case where the bit length of the first sequence is multiple bits as an example.

[0134] In some embodiments, each bit group includes one or more bits. Optionally, each bit group includes the same number of bits, or different bit groups include different numbers of bits.

[0135] In some embodiments, the n groups of bit groups are each subjected to a second transformation to generate n groups of first frequency domain signals, and the n groups of first frequency domain signals correspond one-to-one to the n groups of bit groups. Optionally, other frequency domain signals and / or guard intervals (GIs) may exist between different first frequency domain signals. The other frequency domain signals refer to frequency domain signals other than the first frequency domain signal and the second frequency domain signal.

[0136] 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.

[0137] In some embodiments, the n groups of first frequency domain signals are respectively subjected to a first transformation to generate a first signal. The time domain resource of the first signal includes n time domain units, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals.

[0138] For example, as shown in FIG7 , the first signal corresponds to n groups of bits, each group of bits can be represented by y i (a) represents, where i = 0, 1, ... 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.

[0139] Optionally, different bit groups may include the same or different numbers of bits. In FIG7 , it is taken as an example that each bit group includes a bits.

[0140] Taking the second transform as DFT as an example, the i-th group of bits y i (a) After at least one DFT transformation, the first frequency domain signal x of the i-th group is obtained i (a) After each of the n groups of bit groups undergoes at least one DFT transformation, a total of n groups of first frequency domain signals are obtained.

[0141] Taking the first transformation as IFFT as an example, the first frequency domain signal x of the i-th group i (a) After IFFT transformation, the n sets of first frequency domain signals are mapped to n time domain units. That is, there is a one-to-one correspondence between n time domain units and n sets of first frequency domain signals.

[0142] In some embodiments, the n groups of bits are modulated to generate a first signal. The time domain resource of the first signal includes n time domain units, and the n time domain units correspond one-to-one to the n groups of bits.

[0143] In some embodiments, the synchronization result and / or AGC result of the first signal is used to assist in receiving and / or detecting the second signal. Exemplarily, the synchronization result includes a time domain synchronization result (or clock information) and / or a frequency domain synchronization result (or frequency offset estimation result).

[0144] In some embodiments, the time domain synchronization result of the first signal is obtained by using the envelope detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the time domain synchronization result of the first signal. Exemplarily, the second signal is time-domain calibrated based on clock information obtained by envelope detection of the first signal, and the second signal is received and / or detected based on the calibrated time domain resources.

[0145] In some embodiments, the frequency domain synchronization result of the first signal is obtained by using a correlation detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the frequency domain synchronization result of the first signal. Exemplarily, the second signal is calibrated in the frequency domain based on clock information obtained by correlation detection of the first signal, and the second signal is received and / or detected based on the calibrated frequency domain resources.

[0146] In some embodiments, the first signal is an auxiliary signal of the second signal, or the first signal is a reference signal, or the first signal is a measurement signal, or the first signal is a synchronization signal.

[0147] Step 620: The network device obtains a second signal based on the m groups of bits;

[0148] In some embodiments, the m groups of bits are divided by the wake-up information. Optionally, the wake-up information is agreed upon by a communication protocol, or generated by a network device. Optionally, the wake-up information is generated in a manner agreed upon by a communication protocol, or determined by a network device.

[0149] In some embodiments, the wake-up information is used to wake up a main receiver of a low-power device, or to wake up main receivers of multiple low-power devices.

[0150] In some embodiments, the wake-up information has a bit length of one or more bits, which can also be understood as the wake-up information corresponding to one or more bits, or the wake-up information corresponding to one or more bits. This embodiment of the application takes the wake-up information having a bit length of multiple bits as an example.

[0151] In some embodiments, each bit group includes one or more bits. Optionally, each bit group includes the same number of bits, or different bit groups include different numbers of bits.

[0152] In some embodiments, the m groups of bit groups are each subjected to a second transformation to generate m groups of second frequency domain signals, and the m groups of second frequency domain signals correspond one-to-one to the m groups of bit groups. Optionally, other frequency domain signals and / or GIs exist between different first frequency domain signals. The other frequency domain signals refer to frequency domain signals other than the first frequency domain signal and the second frequency domain signal.

[0153] In some embodiments, the m groups of second frequency domain signals are respectively subjected to the first transformation to generate the second signal. The time domain resource of the second signal includes m time domain units, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals.

[0154] For example, as shown in FIG8 , the wake-up information corresponds to m groups of bits, and each group of bits can be represented by S i (b) represents, where i = 0, 1, ... m-1. Exemplarily, the value of m is one of {1, 2, 4, 6, 8, 12, 16}, or m is another integer greater than 1.

[0155] Taking the second transform as DFT as an example, the i-th bit group S i (b) After at least one DFT transformation, the second frequency domain signal f of the i-th group is obtained i (b) After the m groups of bit groups are each subjected to at least one DFT transformation, a total of m groups of second frequency domain signals are obtained.

[0156] Optionally, different bit groups may include the same or different numbers of bits. In FIG8 , it is taken as an example that each bit group includes b bits.

[0157] Taking the first transformation as IFFT as an example, the i-th group of second frequency domain signals f i (b) After IFFT transformation, the m groups of second frequency domain signals are mapped to m time domain units. That is, the m time domain units correspond one-to-one to the m groups of second frequency domain signals.

[0158] In some embodiments, the wake-up information corresponds to m time domain units, the wake-up information is generated by modulating m groups of bits respectively, and the m time domain units correspond to the m groups of bits in a one-to-one manner.

[0159] In some embodiments, before executing step 620, the network device further performs time domain oversampling on the wake-up information. For example, the original wake-up information corresponds to m / 4 bits, and after 4 times oversampling, 4 consecutive bits are repeated to form an information bit group including m bits.

[0160] In some embodiments, the second signal is a multiplexed signal, that is, the second signal includes other information in addition to the wake-up information, or the second signal has other functions in addition to being used to wake up the main receiver of the low-power device.

[0161] Step 630: The network device sends a first signal and a second signal.

[0162] The first signal and the second signal are used to wake up a main receiver of the low-power device, and the second signal carries wake-up information.

[0163] In some embodiments, a first signal and a second signal are associated with each other. The first signal and the second signal are used to wake up the main receiver of the low-power device. Specifically, the first signal and its associated second signal are used together to wake up the main receiver of the low-power device. The second signal is primarily used to carry wake-up information. Exemplarily, the first signal can be used to assist in the reception and / or detection of the second signal.

[0164] In some embodiments, the first signal is sent periodically. The transmission period of the first signal may be fixed or variable, i.e., the durations of different transmission periods of the first signal may be the same or different. The transmission period of the first signal may be configured by the network device, determined by the low-power device, or determined by negotiation between the network device and the low-power device, and this application does not limit this.

[0165] For the correlation relationship between the first signal and the second signal, please refer to the relevant content in step 510, which will not be repeated here.

[0166] In some embodiments, a first signal and multiple second signals are sent in one sending cycle. The first signal sent by the network device is used to assist in receiving and / or detecting the multiple second signals.

[0167] Optionally, the time domain intervals between the multiple second signals and the first signal are fixed, or agreed upon by a communication protocol, or configured by a network device.

[0168] Optionally, within a transmission cycle, the time slot where the first signal is located is adjacent to or not adjacent to the time slot where the second signal is located when the second signal is sent for the first time.

[0169] Optionally, within a sending cycle, the time slots in which the multiple second signals are sent are adjacent or non-adjacent.

[0170] Optionally, within a sending cycle, the time domain intervals between multiple second signals sent are the same.

[0171] Exemplarily, as shown in FIG9 , the network device 120 sends a first signal and a second signal to the low-power device 140. Taking the time domain unit as a time slot as an example, the transmission period of the first signal is k time slots, that is, the time domain interval between the first signal 1201 and the first signal 1205 is k time slots. Within one transmission period, the network device 120 sends three second signals, and the three second signals are the same or different. In other words, the three second signals can be directed to the same terminal or terminal group, or the three second signals can be directed to different terminals or terminal groups. The time slot where the first signal 1201 is located is adjacent to the time slot where the second signal 1202 is located. The time slot where the second signal 1202 is located is not adjacent to the time slot where the second signal 1203 is located, and the time slot where the second signal 1203 is located is not adjacent to the time slot where the second signal 1204 is located. First signal 1201 is associated with second signal 1202 , second signal 1203 , and second signal 1204 , that is, first signal 1201 is used to assist in receiving and / or detecting second signal 1202 , second signal 1203 , and second signal 1204 .

[0172] In some embodiments, within a transmission cycle, there is a first signal and a second signal. The first signal transmitted by the network device is used to assist in receiving and / or detecting a second signal.

[0173] In some embodiments, the time domain interval between the second signal and the first signal is fixed, or is agreed upon by a communication protocol, or is configured by a network device.

[0174] In some embodiments, a network device periodically transmits a first signal, where the transmission period of the first signal is k time domain units. Furthermore, within the transmission period of the first signal, the network device transmits a second signal once. Alternatively, within k time domain units, the network device transmits the first signal once and the second signal once. Within k time domain units, the first signal is associated with one second signal, meaning that the first signal assists in the reception and / or detection of one second signal within one transmission period.

[0175] Optionally, within a transmission cycle, the time slot where the first signal is located is adjacent to or not adjacent to the time slot where the second signal is located.

[0176] Exemplarily, as shown in FIG10 , network device 120 transmits a first signal and a second signal to low-power device 140. Taking the time domain unit as a time slot as an example, the transmission period of the first signal is k time slots, that is, the time domain interval between first signal 1201 and first signal 1203 is k time slots. Within one period, network device 120 transmits one second signal, and the second signals within different transmission periods may be the same or different. In other words, the second signals within different transmission periods may be directed to the same terminal or terminal group, or the second signals within different transmission periods may be directed to different terminals or terminal groups. The time slot in which first signal 1201 is located is not adjacent to the time slot in which second signal 1202 is located. First signal 1201 is associated with second signal 1202, that is, first signal 1201 is used to assist in the reception and / or detection of second signal 1202. The time slot in which first signal 1203 is located is adjacent to the time slot in which second signal 1204 is located. The first signal 1203 is associated with the second signal 1204 , that is, the first signal 1203 is used to assist in receiving and / or detecting the second signal 1204 .

[0177] Optionally, the time domain resources of the first signal include different time domain units that are respectively associated with different frequency domain positions. 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 (that is, anti-fading capability), so that the total transmission power and coverage performance of the first signal are improved.

[0178] In some embodiments, the first signal is a frequency hopping signal, which supports further improving the communication quality of the first signal.

[0179] Optionally, the time domain resources of the second signal include different time domain units that are respectively associated with different frequency domain positions. It can also be understood that the second 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 second signal and improving the ability to resist frequency selective fading (i.e., anti-fading capability), so that the total transmission power and coverage performance of the second signal are improved.

[0180] In some embodiments, the second signal is a frequency hopping signal, which supports further improving the communication quality of the second signal.

[0181] In some embodiments, the first signal is sent in a unicast, multicast, or broadcast manner, and the second signal is sent in a unicast, multicast, or broadcast manner.

[0182] In some embodiments, the wake-up information carried by the second signal is used to wake up a low-power device, so the network device may send the second signal in a unicast manner.

[0183] In some embodiments, the wake-up information carried by the second signal is used to wake up at least two low-power devices. Then, the network device may send the second signal in a multicast or broadcast manner.

[0184] In some embodiments, the at least two low-power consumption devices are located in the same cell, or are located in different cells.

[0185] In some embodiments, the second signal is a cell-level signal, which can also be understood as the wake-up information carried by the second signal being used to wake up one or more low-power devices in a cell.

[0186] In some embodiments, the network device sends the first signal using a unicast, multicast, or broadcast method.

[0187] In some embodiments, a first signal carries indication information for indicating a second signal with which the first signal corresponds, a second signal associated with the first signal, or a second signal for assisting in the reception and / or detection of the first signal. Alternatively, the fact that a first signal carries identification information of a second signal means that the first signal is associated with the second signal indicated by the identification information, or that the first signal assists in the reception and / or detection of the second signal indicated by the identification information.

[0188] For the rest of the relevant contents of the first signal and the second signal, please refer to step 510 and will not be described again here.

[0189] In summary, the method provided in the embodiment of the present application wakes up the main receiver of the low-power device by sending a first signal and a second signal. By adding a first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided in the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signals sent can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0190] FIG11 is a flow chart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by the low-power device shown in FIG1 or FIG3 . The method includes:

[0191] Step 1110: Receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device, wherein the second signal carries wake-up information.

[0192] In some embodiments, the second signal carries wake-up information. Optionally, the wake-up information is implemented as indication information.

[0193] In some embodiments, the wake-up information carried by the second signal is used to wake up a main receiver of a low-power device, or the wake-up information carried by the second signal is used to wake up main receivers of multiple low-power devices.

[0194] In some embodiments, the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to wake up the primary receiver, or the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to turn on the primary receiver.

[0195] In some embodiments, the first signal is associated with the second signal. Exemplarily, the reception of the second signal is associated with the first signal, and / or the detection of the second signal is associated with the first signal.

[0196] In summary, the method provided in the embodiments of the present application uses the received first and second signals to wake up the primary receiver of a low-power device. By adding the first signal to the second signal, which already carries the wake-up information, to wake up the primary receiver, the primary receiver can obtain more information for wake-up, significantly improving the wake-up success rate and efficiency of the low-power device.

[0197] In some embodiments, step 1110 may also be implemented as step 1210, as shown in FIG12 . FIG12 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application, the method being executed by the low-power device shown in FIG1 , FIG3 , or FIG11 , and comprising:

[0198] Step 1210: Receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device, wherein the second signal carries wake-up information.

[0199] In some embodiments, a first signal and a second signal are associated with each other. The first signal and the second signal are used to wake up the main receiver of the low-power device. Specifically, the first signal and its associated second signal are used together to wake up the main receiver of the low-power device. The second signal is primarily used to carry wake-up information. Exemplarily, the first signal can be used to assist in the reception and / or detection of the second signal.

[0200] In some embodiments, the first signal is sent periodically. The transmission period of the first signal may be fixed or variable, i.e., the durations of different transmission periods of the first signal may be the same or different. The transmission period of the first signal may be configured by the network device, determined by the low-power device, or determined by negotiation between the network device and the low-power device, and this application does not limit this.

[0201] Optionally, the association relationship between the first signal and the second signal in the present application can specifically be the relationship between the transmission period of the first signal and the second signal. For example, within each transmission period of the first signal, the network device can send one second signal, or the network device can send multiple second signals. Of course, if the network device does not need to wake up the low-power device within a certain transmission period, it is also possible not to send the second signal within the transmission period. The first signal within each transmission period is used to wake up the low-power device together with the second signal within the transmission period.

[0202] Optionally, the durations of the sending periods of different first signals are equal or different.

[0203] Optionally, within each sending cycle of the first signal, the network device sends a second signal, which can provide a more suitable and targeted first signal for each second signal, improve the correlation accuracy between the first signal and the second signal, and help to specifically improve the transmission quality of the wake-up information carried by each second signal.

[0204] Optionally, if the network device sends multiple second signals within each sending cycle of the first signal, the number of first signals sent can be saved, the association efficiency of the first signal can be improved, the time for waking up the target terminal can be saved, and the demodulation performance and decoding performance for more second signals can be guaranteed while the first signal consumes less transmission resources, thereby improving the wake-up efficiency.

[0205] Optionally, when a network device sends multiple second signals within a certain transmission cycle, the multiple second signals can be used to wake up the same terminal or terminal group. By repeatedly sending multiple second signals to the same terminal or terminal group within a transmission cycle, the success rate of receiving the second signals can be increased, thereby increasing the success rate of waking up the main receiver.

[0206] Optionally, when a network device sends multiple second signals within a certain sending cycle, the multiple second signals can also be used to wake up different terminals or terminal groups. The terminal receiving the second signal can determine whether there is a second signal belonging to it in the multiple second signals based on one or more of the terminal identification (Identify, ID), terminal group ID, terminal group index (Index), etc. carried by each second signal. Alternatively, the terminal receiving the second signal can determine whether there is a second signal belonging to it in the multiple second signals based on one or more of the terminal ID, terminal group ID, terminal group index, second signal index, second signal identification, etc. carried by the first signal associated with the second signal. By sending wake-up information for multiple terminals or terminal groups within a sending cycle, the efficiency of sending the wake-up information can be improved, the number of signals sent can be saved, and the time for waking up the target terminal can be saved.

[0207] In some embodiments, there are multiple first signals within a first signal transmission cycle, wherein each first signal is associated with a portion of the second signals within the current transmission cycle, and the second signals associated with different first signals are different or overlap.

[0208] In some embodiments, the time domain resource of the first signal includes n time domain units; where n is an integer greater than or equal to 1.

[0209] 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.

[0210] The symbol includes at least one of the following: OFDM symbol, QPSK symbol, ASK symbol, FSK symbol, OOK symbol, and MC-OOK symbol.

[0211] In some embodiments, the first signal is generated by n groups of first frequency domain signals respectively undergoing a first transformation, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; wherein the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0212] 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.

[0213] In some embodiments, n groups of first frequency domain signals are generated by n groups of bit groups undergoing a second transformation respectively; wherein the second transformation refers to the transformation of the signal from the time domain to the frequency domain, and a group of bit groups includes one or more bits.

[0214] 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.

[0215] In some embodiments, the first signal is generated by modulating n groups of bits respectively, and the n time domain units correspond one-to-one to the n groups of bits.

[0216] In some embodiments, the first signal is sent periodically or aperiodically.

[0217] In some embodiments, the second signal carries wake-up information. Optionally, the wake-up information is implemented as indication information.

[0218] In some embodiments, the wake-up information carried by the second signal is used to wake up a main receiver of a low-power device, or the wake-up information carried by the second signal is used to wake up main receivers of multiple low-power devices.

[0219] In some embodiments, the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to wake up the primary receiver, or the wake-up information carried by the second signal is used to instruct the secondary receiver of the low-power device to turn on the primary receiver.

[0220] In some embodiments, the time domain resource of the second signal includes m time domain units; wherein m is an integer greater than or equal to 1, and n is equal to or different from m.

[0221] In some embodiments, the second signal is generated by m groups of second frequency domain signals respectively undergoing a first transformation, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; wherein the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0222] In some embodiments, m groups of second frequency domain signals are generated by m groups of bit groups undergoing a second transformation respectively; wherein a group of bit groups includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0223] In some embodiments, the second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; wherein a group of bit groups includes one or more bits.

[0224] In some embodiments, the n time domain units are different from the m time domain units, which can also be understood as the time domain resources of the first signal being different from the time domain resources of the second signal. Optionally, the n time domain units differ from the m time domain units in at least one of the following: a different quantity (i.e., n is not equal to m); a different starting position of the n time domain units from a starting position of the m time domain units; and a different ending position of the n time domain units from an ending position of the m time domain units.

[0225] In some embodiments, the frequency domain resources of the first signal are different from the frequency domain resources of the second signal. The frequency domain resources of the first signal are referred to as first frequency domain resources, and the frequency domain resources of the second signal are referred to as second frequency domain resources.

[0226] Optionally, there is at least one difference between the first frequency domain resource and the second frequency domain resource: the first frequency domain resource and the second frequency domain resource include a different number of frequency domain units, that is, the width of the frequency domain resources is different; the frequency domain starting positions of the first frequency domain resource and the second frequency domain resource are different; the frequency domain ending positions of the first frequency domain resource and the second frequency domain resource are different.

[0227] Optionally, the center frequency of the first frequency domain resource is aligned with the center frequency of the second frequency domain resource, or the upper frequency of the first frequency domain resource is aligned with the upper frequency of the second frequency domain resource, or the lower frequency of the first frequency domain resource is aligned with the lower frequency of the second frequency domain resource. Such a design can make demodulation and decoding of the second signal easier.

[0228] 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.

[0229] In some embodiments, the synchronization result and / or AGC result of the first signal is used to assist in receiving and / or detecting the second signal. Exemplarily, the synchronization result includes a time domain synchronization result (or clock information) and / or a frequency domain synchronization result (or frequency offset estimation result).

[0230] In some embodiments, the time domain synchronization result of the first signal is obtained by using the envelope detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the time domain synchronization result of the first signal. Exemplarily, the second signal is time-domain calibrated based on clock information obtained by envelope detection of the first signal, and the second signal is received and / or detected based on the calibrated time domain resources.

[0231] In some embodiments, the frequency domain synchronization result of the first signal is obtained by using a correlation detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the frequency domain synchronization result of the first signal. Exemplarily, the second signal is calibrated in the frequency domain based on clock information obtained by correlation detection of the first signal, and the second signal is received and / or detected based on the calibrated frequency domain resources.

[0232] In some embodiments, the first signal is an auxiliary signal of the second signal, or the first signal is a reference signal, or the first signal is a measurement signal, or the first signal is a synchronization signal.

[0233] In some embodiments, the correspondence between the first signal and the second signal satisfies one of the following:

[0234] The first signal and the second signal have a one-to-one correspondence, which can also be understood as one first signal being used to assist in the reception and / or detection of one second signal;

[0235] The first signal and the second signal have a one-to-many correspondence relationship, which can also be understood as one first signal being used to assist in the reception and / or detection of multiple second signals;

[0236] Within a cycle, the first signal and the second signal have a one-to-one correspondence. This can also be understood as a first signal being used to assist in the reception and / or detection of a second signal within its own transmission cycle.

[0237] Within a cycle, the first signal and the second signal have a one-to-many correspondence relationship. This can also be understood as one first signal being used to assist in the reception and / or detection of multiple second signals within its own transmission cycle.

[0238] Here, one period refers to a sending period of the first signal.

[0239] In summary, the method provided by the embodiment of the present application, the received first signal and the second signal are used to wake up the main receiver of the low-power device. By adding a first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided by the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signal transmissions can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0240] In some embodiments, step 1210 may also be implemented as step 1310. In addition to step 1310, the wake-up method may further include step 1320, as shown in FIG13 . FIG13 shows a flowchart of a wake-up method provided by an exemplary embodiment of the present application. The method is executed by the low-power device shown in FIG1 , FIG3 , FIG11 , or FIG12 . The method includes:

[0241] Step 1310: Receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of a low-power device, wherein the second signal carries wake-up information;

[0242] For related content, please refer to step 1210, which will not be repeated here.

[0243] Step 1320: Based on the first signal and / or the second signal, start the main receiver of the low power consumption device.

[0244] In some embodiments, the main receiver of the low power consumption device is started based on at least one of the wake-up information carried by the second signal, the signal quality of the first signal, and the signal quality of the second signal.

[0245] Optionally, a main receiver of the low-power device is started based on the wake-up information carried by the second signal.

[0246] Optionally, the main receiver of the low-power device is started based on the signal quality of the first signal and / or the signal quality of the second signal. Since there is no need to rely on the interpretation of the wake-up information in the second signal, the main receiver can be started directly according to the signal quality, thereby improving the wake-up efficiency and flexibility. Moreover, such a design is particularly suitable for situations where the signal quality is poor and the current communication environment is poor. It can effectively reduce the wake-up failure rate of the first signal and the second signal and improve the effectiveness of the first signal and the second signal. It also avoids the situation where the first signal and the second signal consume transmission resources, but the main receiver is not successfully woken up because the wake-up information carried by the second signal cannot be correctly interpreted, thereby reducing the waste of transmission resources.

[0247] In some embodiments, the low-power device performs signal processing on the first signal to obtain a signal processing result of the first signal. Exemplarily, the signal processing includes at least one of time domain synchronization, frequency domain synchronization, and AGC. Time domain synchronization is also known as timing synchronization, and frequency domain synchronization is also known as frequency offset estimation. The signal processing result, for example, includes at least one of a time domain synchronization result (or clock information), a frequency domain synchronization result (or a frequency offset estimation result), and an AGC result.

[0248] In some embodiments, the synchronization result and / or AGC result of the first signal is used to assist in receiving and / or detecting the second signal. Exemplarily, the synchronization result includes a time domain synchronization result (or clock information) and / or a frequency domain synchronization result (or frequency offset estimation result).

[0249] In some embodiments, the time domain synchronization result of the first signal is obtained by using the envelope detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the time domain synchronization result of the first signal. Exemplarily, the second signal is time-domain calibrated based on clock information obtained by envelope detection of the first signal, and the second signal is received and / or detected based on the calibrated time domain resources.

[0250] In some embodiments, the frequency domain synchronization result of the first signal is obtained by using a correlation detection result of the first signal, and the reception and / or detection of the second signal is performed with reference to the frequency domain synchronization result of the first signal. Exemplarily, the second signal is calibrated in the frequency domain based on clock information obtained by correlation detection of the first signal, and the second signal is received and / or detected based on the calibrated frequency domain resources.

[0251] In some embodiments, the first signal is an auxiliary signal of the second signal, or the first signal is a reference signal, or the first signal is a measurement signal, or the first signal is a synchronization signal.

[0252] In some embodiments, the low-power device decodes and demodulates the second signal to obtain the wake-up information.

[0253] In some embodiments, the low-power device measures the first signal to obtain signal quality of the first signal.

[0254] In some embodiments, the low-power device measures the second signal to obtain signal quality of the second signal.

[0255] 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.

[0256] In some embodiments, the wake-up information instructs the low-power device to receive data and / or other signals except the first signal, and then the main receiver is started and the data and / or other signals are received using the main receiver.

[0257] In some embodiments, the wake-up information instructs the low-power device to send data and / or signals, then the main transmitter and / or backscatter transmitter are started, and the main transmitter and / or backscatter transmitter are used to send data and / or signals.

[0258] In some embodiments, when the signal quality of the first signal is lower than a first threshold, the low-power device starts the main receiver and uses the main receiver to receive data and / or signals.

[0259] In some embodiments, when the signal quality of the first signal is lower than a first threshold, the low-power device starts the main transmitter and / or the backscatter transmitter and uses the main transmitter and / or the backscatter transmitter to send data and / or signals.

[0260] In some embodiments, when the signal quality of the second signal is lower than a second threshold, the low-power device starts the main receiver and uses the main receiver to receive data and / or signals.

[0261] In some embodiments, when the signal quality of the second signal is lower than a second threshold, the low-power device starts the main transmitter and / or the backscatter transmitter and uses the main transmitter and / or the backscatter transmitter to send data and / or signals.

[0262] The first threshold is specified in a communication protocol, configured by a network device, or determined by a low-power device. The second threshold is specified in a communication protocol, configured by a network device, or determined by a low-power device. The first threshold and the second threshold may be the same or different.

[0263] In some embodiments, the main receiver receives data and / or other signals on the time-frequency resources indicated by the wake-up information, the main transmitter receives data and / or other signals on the time-frequency resources indicated by the wake-up information, and the backscatter transmitter sends data and / or signals on the time-frequency resources indicated by the wake-up information.

[0264] In summary, the method provided in the embodiment of the present application wakes up the main receiver of the low-power device by transmitting a first signal and a second signal, and by adding a first signal to wake up the main receiver on the basis of the second signal that originally carries the wake-up information, so that the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided in the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signal transmissions can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced. Furthermore, the system supports waking up the primary receiver based on at least one of the wake-up information carried by the second signal, the signal quality of the first signal, or the signal quality of the second signal, meeting wake-up requirements in various communication scenarios. This system supports both waking up the primary receiver based on the wake-up information carried by the second signal and directly turning on the primary receiver based on signal quality. This ensures the efficiency and effectiveness of both the first and second signals, and improves the robustness of the wake-up method.

[0265] FIG14 is a flow chart of a wake-up method provided by an exemplary embodiment of the present application. The method is performed by the network device shown in FIG1 or FIG2 or FIG3 or FIG4 or FIG5 or FIG6, and the low-power device shown in FIG1 or FIG3 or FIG11 or FIG12 or FIG13. The method includes:

[0266] Step 1410: The network device obtains a first signal based on n groups of bits;

[0267] For related content, please refer to step 610, which will not be repeated here.

[0268] Step 1420: The network device obtains a second signal based on the m groups of bits;

[0269] For related content, please refer to step 620, which will not be repeated here.

[0270] Step 1430: The network device sends a first signal and a second signal;

[0271] For related content, please refer to step 630, which will not be repeated here.

[0272] Step 1440: The low-power device receives the first signal and the second signal;

[0273] For related content, please refer to step 1210, which will not be repeated here.

[0274] Step 1450: The low-power device starts a main receiver of the low-power device based on the first signal and the second signal.

[0275] For related content, please refer to step 1320 and will not be repeated here.

[0276] It should be understood that steps 1410, 1420, and 1450 are optional steps. The above steps can be used individually or in combination. For example, steps 1410 and 1420 can be combined to form a signal modulation method; or, step 1430 can be implemented as a signal transmission method alone; or, step 1440 can be implemented as a signal reception method alone; or, step 1440 and step 1450 can be combined to form a signal processing method. The above steps can be split, for example, step 1430 can be split into a step of sending a first signal and a step of sending a second signal. The execution order of the above steps can be adjusted according to actual circumstances, for example, step 1420 can be executed before step 1410.

[0277] In summary, the method provided in the embodiment of the present application wakes up the main receiver of the low-power device through the first signal and the second signal. By adding the first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided in the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signal transmissions can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0278] FIG15 shows a block diagram of a wake-up device according to an exemplary embodiment of the present application. The device may be implemented as a network device as shown in FIG1 , FIG2 , FIG3 , FIG4 , FIG5 , or FIG6 , or may be implemented as a portion of a network device as shown in FIG1 , FIG2 , FIG3 , FIG4 , FIG5 , or FIG6 . The device includes a sending module 1510 . Optionally, the device also includes a processing module 1530 and / or a receiving module 1550 .

[0279] The sending module 1510 is configured to send a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of the low-power device, wherein the second signal carries wake-up information.

[0280] In some embodiments, the first signal is sent periodically or aperiodically.

[0281] In some embodiments, within a transmission cycle, there is at least one first signal, or there is at least one first signal and at least one second signal. Different transmission cycles correspond to the same number of time domain units in the time domain, which can also be understood as each transmission cycle having the same time domain length.

[0282] Optionally, in different sending cycles, the number of second signals is the same or different.

[0283] In some embodiments, there is a first signal within a transmission cycle, and the first signal is associated with all second signals within the transmission cycle. It can also be understood that the reception and / or detection of all second signals within a transmission cycle are associated with the first signal within the transmission cycle. It can also be understood that the reception and / or detection of all second signals within a transmission cycle are performed based on the first signal within the transmission cycle.

[0284] In some embodiments, there are multiple first signals in one transmission cycle, wherein each first signal is associated with a portion of the second signals in the current transmission cycle, and the second signals associated with different first signals are different or overlap.

[0285] In some embodiments, the correspondence between the first signal and the second signal satisfies one of the following: the first signal and the second signal have a one-to-one correspondence; the first signal and the second signal have a one-to-many correspondence; within one cycle, the first signal and the second signal have a one-to-one correspondence; within the one cycle, the first signal and the second signal have a one-to-many correspondence; wherein the one cycle refers to the sending cycle of the first signal.

[0286] In some embodiments, the first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; wherein n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

[0287] In some embodiments, the first signal is generated by n groups of first frequency domain signals respectively undergoing a first transformation, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; the second signal is generated by m groups of second frequency domain signals respectively undergoing the first transformation, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; wherein, the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0288] In some embodiments, the first transform comprises one of the following: IFT, IFFT, inverse Laplace transform, inverse z transform.

[0289] In some embodiments, the n groups of first frequency domain signals are generated by n groups of bit groups respectively undergoing a second transformation; the m groups of second frequency domain signals are generated by m groups of bit groups respectively undergoing a second transformation; wherein a group of bit groups includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0290] In some embodiments, the second transform comprises one of the following: FT, FFT, DFT, Laplace transform, z-transform.

[0291] In some embodiments, the first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; the second signal is generated by modulating m groups of bit groups respectively, and the m time domain units correspond one-to-one to the m groups of bit groups; wherein, a group of bit groups includes one or more bits.

[0292] In some embodiments, the n time domain units are different from the m time domain units, which can also be understood as the time domain resources of the first signal being different from the time domain resources of the second signal. Optionally, the n time domain units differ from the m time domain units in at least one of the following: a different quantity (i.e., n is not equal to m); a different starting position of the n time domain units from a starting position of the m time domain units; and a different ending position of the n time domain units from an ending position of the m time domain units.

[0293] In some embodiments, the frequency domain resources of the first signal are different from the frequency domain resources of the second signal. The frequency domain resources of the first signal are referred to as first frequency domain resources, and the frequency domain resources of the second signal are referred to as second frequency domain resources.

[0294] Optionally, there is at least one difference between the first frequency domain resource and the second frequency domain resource: the number of frequency domain units included in the frequency domain resources is different, that is, the width of the frequency domain resources is different; the starting position of the frequency domain resources is different; and the ending position of the frequency domain resources is different.

[0295] Optionally, the center frequency of the first frequency domain resource is aligned with the center frequency of the second frequency domain resource. Such a design can improve the simplicity of demodulation and decoding of the second signal.

[0296] In some embodiments, the apparatus further comprises a processing module 1530 for generating / modulating the first signal.

[0297] In some embodiments, the processing module 1530 is configured to generate / modulate a second signal.

[0298] In some embodiments, the apparatus further includes a receiving module 1550 configured to receive signals or data from the low-power device. For example, the receiving module 1550 is configured to receive a synchronization request sent by the low-power device. For example, the receiving module 1550 is configured to receive a backscattered signal from the low-power device. For example, the receiving module 1550 is configured to receive signals or data from a primary transmitter of the low-power device.

[0299] In summary, the device provided in the embodiment of the present application wakes up the main receiver of the low-power device by sending a first signal and a second signal. By adding a first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided in the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signals sent can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0300] FIG16 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 low-power device as shown in FIG1 , FIG3 , FIG11 , FIG12 , or FIG13 , or as a part of a low-power device as shown in FIG1 , FIG3 , FIG11 , FIG12 , or FIG13 . The device includes a first receiving module 1610. Optionally, the device further includes at least some of a processing module 1630, a second receiving module 1650, and a sending module 1670.

[0301] The first receiving module 1610 is configured to receive a first signal and a second signal, where the first signal and the second signal are used to wake up a main receiver of the low-power device, wherein the second signal carries wake-up information.

[0302] In some embodiments, the first signal is sent periodically or aperiodically.

[0303] In some embodiments, within a transmission cycle, there is at least one first signal, or there is at least one first signal and at least one second signal. Different transmission cycles correspond to the same number of time domain units in the time domain, which can also be understood as each transmission cycle having the same time domain length.

[0304] Optionally, in different sending cycles, the number of second signals is the same or different.

[0305] In some embodiments, there is a first signal within a transmission cycle, and the first signal is associated with all second signals within the transmission cycle. It can also be understood that the reception and / or detection of all second signals within a transmission cycle are associated with the first signal within the transmission cycle. It can also be understood that the reception and / or detection of all second signals within a transmission cycle are performed based on the first signal within the transmission cycle.

[0306] In some embodiments, there are multiple first signals in one transmission cycle, wherein each first signal is associated with a portion of the second signals in the current transmission cycle, and the second signals associated with different first signals are different or overlap.

[0307] In some embodiments, the correspondence between the first signal and the second signal satisfies one of the following: the first signal and the second signal have a one-to-one correspondence; the first signal and the second signal have a one-to-many correspondence; within one cycle, the first signal and the second signal have a one-to-one correspondence; within the one cycle, the first signal and the second signal have a one-to-many correspondence; wherein the one cycle refers to the sending cycle of the first signal.

[0308] In some embodiments, the first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; wherein n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

[0309] In some embodiments, the first signal is generated by n groups of first frequency domain signals respectively undergoing a first transformation, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; the second signal is generated by m groups of second frequency domain signals respectively undergoing the first transformation, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; wherein, the first transformation refers to the transformation of the signal from the frequency domain to the time domain.

[0310] In some embodiments, the first transform comprises one of the following: IFT, IFFT, inverse Laplace transform, inverse z transform.

[0311] In some embodiments, the n groups of first frequency domain signals are generated by n groups of bit groups respectively undergoing a second transformation; the m groups of second frequency domain signals are generated by m groups of bit groups respectively undergoing a second transformation; wherein a group of bit groups includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

[0312] In some embodiments, the second transform comprises one of the following: FT, FFT, DFT, Laplace transform, z-transform.

[0313] In some embodiments, the first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; the second signal is generated by modulating m groups of bit groups respectively, and the m time domain units correspond one-to-one to the m groups of bit groups; wherein, a group of bit groups includes one or more bits.

[0314] In some embodiments, the n time domain units are different from the m time domain units.

[0315] In some embodiments, the first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; wherein the relationship between the first frequency domain resource and the second frequency domain resource satisfies at least one of the following: the bandwidth of the first frequency domain resource is different from the bandwidth of the second frequency domain resource; the center frequency point of the first frequency domain resource is aligned with the center frequency point of the second frequency domain resource; the frequency domain starting position of the first frequency domain resource is different from the frequency domain starting position of the second frequency domain resource; the frequency domain ending position of the first frequency domain resource is different from the frequency domain ending position of the second frequency domain resource.

[0316] In some embodiments, the device also includes a processing module 1630 for performing signal processing based on the first signal; the first receiving module 1610 is also used to receive the second signal based on the result of the signal processing; wherein the signal processing includes at least one operation of time domain synchronization, frequency domain synchronization, and automatic gain control AGC.

[0317] In some embodiments, the apparatus further includes a second receiving module 1650 .

[0318] In some embodiments, the processing module 1630 is configured to activate the second receiving module 1650 based on the first signal and / or the second signal.

[0319] In some embodiments, the processing module 1630 is configured to activate the second receiving module 1650 based on the wake-up information, and / or the signal quality of the first signal, and / or the signal quality of the second signal.

[0320] In some embodiments, the processing module 1630 is further used to: detect the second signal to obtain the wake-up information; and / or, measure the second signal to obtain the signal quality of the second signal; and / or, measure the first signal to obtain the signal quality of the first signal.

[0321] In some embodiments, the wake-up information includes time domain resource information and / or frequency domain resource information.

[0322] In some embodiments, the second receiving module 1650 is configured to receive data and / or signals.

[0323] In some embodiments, the apparatus further comprises a sending module 1670 for sending data and / or signals.

[0324] In some embodiments, the sending module 1670 is used for backscattering.

[0325] In summary, the device provided by the embodiment of the present application, the received first signal and the second signal can be used to wake up the main receiver of the low-power device. By adding the first signal for waking up the main receiver on the basis of the second signal that originally carries the wake-up information, the main receiver can obtain more information for wake-up, effectively improving the demodulation performance and decoding performance of the second signal, thereby significantly improving the wake-up success rate and efficiency of the low-power device, and better ensuring the transmission quality and reliability of the wake-up information. In addition, a plurality of designs of the second signal within the transmission cycle of a first signal are provided, so that the method provided by the embodiment of the present application can meet the wake-up requirements in various communication scenarios. If multiple second signals are repeatedly sent to the same terminal or terminal group within a transmission cycle, it helps to improve the reception success rate of the second signal, thereby improving the success rate of waking up the main receiver. If wake-up information for multiple terminals or terminal groups is sent within a transmission cycle, the efficiency of sending the wake-up information can be improved, the number of signal transmissions can be saved, the time for waking up the target terminal can be saved, the overall efficiency of the communication system can be improved, and the overall resource consumption of the communication system can be reduced.

[0326] FIG17 shows a schematic diagram of the structure 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. The network device 1700 may be used to execute some or all of the steps shown in FIG4 to FIG6.

[0327] 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.

[0328] Receiver 1702 and transmitter 1703 can be implemented as a communication component, which can be a communication chip, and can be called a transceiver. In some embodiments, receiver 1702 can be used to implement the functions and steps of the above-mentioned receiving module 1550, and transmitter 1703 can be used to implement the functions and steps of the above-mentioned sending module 1510.

[0329] The memory 1704 is connected to the processor 1701 via a bus 1705 .

[0330] 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 processing module 1530.

[0331] 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).

[0332] 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.

[0333] 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.

[0334] FIG18 shows a schematic structural diagram of a low-power device 1800 provided by an exemplary embodiment of the present application, including a receiver 1810 and a transmitter 1820. The low-power device 1800 can be used to perform some or all of the steps shown in FIG11 to FIG13.

[0335] The receiver 1810 and the transmitter 1820 may be implemented as a communication component, which may be a communication chip, and may be referred to as a transceiver.

[0336] In some embodiments, the receiver 1810 may be used to implement the functions and steps of the above-mentioned first receiving module 1610 and / or second receiving module 1650 . Optionally, the receiver 1810 may be implemented as a first receiver 1811 and a second receiver 1812 .

[0337] In some embodiments, the transmitter 1820 may be used to implement the functions and steps of the aforementioned sending module 1670 . Optionally, the transmitter 1820 may be implemented as a transmitter 1821 and a transmitter 1822 .

[0338] Optionally, the low-power device 1800 may further include a processor 1830. The processor 1830 includes one or more processing cores, and the processor 1830 executes various functional applications and information processing by running software programs and modules.

[0339] Optionally, the low-power device 1800 may further include a memory 1840. The memory 1840 may be used to store at least one instruction, and the processor 1810 may be used to execute the at least one instruction to implement the various steps in the above method embodiment. Furthermore, the memory 1804 may 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 or optical disks, EEPROMs, EPROMs, SRAMs, ROMs, magnetic memories, flash memories, and PROMs.

[0340] Optionally, the low-power device 1800 may further include a bus (not shown in the figure). Optionally, the memory 1840 is connected to the processor 1830 via the bus.

[0341] In some embodiments, the receiver 1810 receives signals / data independently, or the processor 1830 controls the receiver 1810 to receive signals / data, or the processor 1830 requests the receiver 1810 to receive signals / data, or the processor 1830 cooperates with the receiver 1810 to receive signals / data.

[0342] In some embodiments, the transmitter 1820 independently sends signals / data, or the processor 1830 controls the transmitter 1820 to send signals / data, or the processor 1830 requests the transmitter 1820 to send signals / data, or the processor 1830 cooperates with the transmitter 1820 to send signals / data.

[0343] In some embodiments, receiver 1811 is implemented as a WUR, and / or, receiver 1812 is implemented as a main receiver.

[0344] In some embodiments, receiver 1810 is implemented as a combined receiver of a WUR and a main receiver.

[0345] In some embodiments, transmitter 1821 is implemented as a primary transmitter, and / or transmitter 1822 is implemented as a backscatter transmitter.

[0346] In some embodiments, transmitter 1820 is implemented as a combination transmitter of a main transmitter and a backscatter transmitter.

[0347] In some embodiments, the processor 1830 and the receiver 1810 may be implemented as one module, or the processor 1830 may be implemented as a part of the receiver 1810 .

[0348] In some embodiments, the processor 1830 and the transmitter 1820 may be implemented as one module, or the processor 1830 may be implemented as a part of the transmitter 1820 .

[0349] In some embodiments, the low power consumption device 1800 includes one or more processors 1830 , and different processors are used to execute the same steps or different steps in the above-mentioned processing-related steps.

[0350] 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.

[0351] 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.

[0352] 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.

[0353] 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.

[0354] Those skilled in the art will understand that all or part of the steps of implementing the above embodiments may be accomplished by hardware, or may be accomplished by instructing relevant hardware through a program, 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.

[0355] 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 and a second signal, wherein the first signal and the second signal are used to wake up a main receiver of the low-power device; Wherein, the second signal carries wake-up information.

2. The method according to claim 1, characterized in that The first signal is sent periodically or aperiodically.

3. The method according to claim 1 or 2, characterized in that: In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

4. The method according to any one of claims 1 to 3, characterized in that: The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

5. The method according to claim 4, characterized in that The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

6. The method according to claim 5, 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.

7. The method according to claim 4 or 5, characterized in that: The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and 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 4, characterized in that The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

10. The method according to any one of claims 4 to 9, characterized in that: The n time domain units are different from the m time domain units.

11. The method according to any one of claims 1 to 10, characterized in that: The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

12. A wake-up method, characterized in that: The method is performed by a low power consumption device, and the method includes: receiving a first signal and a second signal, wherein the first signal and the second signal are used to wake up a main receiver of a low power consumption device; Wherein, the second signal carries wake-up information.

13. The method according to claim 12, characterized in that The first signal is sent periodically or aperiodically.

14. The method according to claim 12 or 13, characterized in that In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

15. The method according to any one of claims 12 to 14, characterized in that: The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

16. The method according to claim 15, characterized in that The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units are connected to the n groups of first frequency domain signals. Numbers correspond one to one; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

17. The method according to claim 16, 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.

18. The method according to claim 16 or 17, characterized in that The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

19. The method according to claim 18, 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.

20. The method according to claim 15, characterized in that The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

21. The method according to any one of claims 15 to 20, characterized in that: The n time domain units are different from the m time domain units.

22. The method according to any one of claims 12 to 21, characterized in that: The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

23. The method according to any one of claims 12 to 22, characterized in that: The receiving of the first signal and the second signal comprises: receiving a first signal, and performing signal processing based on the first signal; receiving the second signal based on a result of the signal processing; The signal processing includes at least one operation of time domain synchronization, frequency domain synchronization, and automatic gain control AGC.

24. The method according to any one of claims 12 to 23, characterized in that: The method further comprises: Based on the first signal and / or the second signal, a main receiver of the low power consumption device is started.

25. The method according to claim 24, characterized in that The starting of the main receiver of the low-power consumption device based on the first signal and / or the second signal comprises at least one of the following: Based on the signal quality of the first signal, starting a main receiver of the low power consumption device; Based on the signal quality of the second signal, starting a main receiver of the low power consumption device; Based on the wake-up information carried by the second signal, a main receiver of the low-power consumption device is started.

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 low 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 low power consumption device.

27. A wake-up device, characterized in that: The device comprises: A sending module, used for sending a first signal and a second signal, wherein the first signal and the second signal are used for waking up a main receiver of the low-power device; Wherein, the second signal carries wake-up information.

28. The device according to claim 27, characterized in that The first signal is sent periodically or aperiodically.

29. The device according to claim 27 or 28, characterized in that In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

30. The device according to any one of claims 27 to 29, characterized in that The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

31. The device according to claim 30, characterized in that The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

32. The device according to claim 31, 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.

33. The device according to claim 31 or 32, characterized in that The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and 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 30, characterized in that The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

36. The device according to any one of claims 30 to 35, characterized in that The n time domain units are different from the m time domain units.

37. The device according to any one of claims 27 to 36, characterized in that The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

38. A wake-up device, characterized in that: The device comprises: A first receiving module, configured to receive a first signal and a second signal, wherein the first signal and the second signal are used to wake up a main receiver of a low-power consumption device; Wherein, the second signal carries wake-up information.

39. The device according to claim 38, characterized in that The first signal is sent periodically or aperiodically.

40. The device according to claim 38 or 39, characterized in that In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

41. The device according to any one of claims 38 to 40, characterized in that The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

42. The device according to claim 41, characterized in that The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

43. The device according to claim 42, 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.

44. The device according to claim 42 or 43, characterized in that The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

45. The device according to claim 44, 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.

46. ​​The device according to claim 41, characterized in that The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

47. The device according to any one of claims 41 to 46, characterized in that The n time domain units are different from the m time domain units.

48. The device according to any one of claims 38 to 47, characterized in that The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

49. The device according to any one of claims 38 to 48, characterized in that The device further includes: a processing module, configured to perform signal processing based on the first signal; The first receiving module is further configured to receive the second signal based on a result of the signal processing; The signal processing includes at least one operation of time domain synchronization, frequency domain synchronization, and automatic gain control AGC.

50. The device according to any one of claims 38 to 49, characterized in that The device further includes: a processing module and a second receiving module, configured to start the second receiving module based on the first signal and / or the second signal.

51. The device according to claim 50, characterized in that The processing module is further configured to perform at least one of the following operations: Based on the signal quality of the first signal, starting the second receiving module; Based on the signal quality of the second signal, starting the second receiving module; Based on the wake-up information carried by the second signal, the second receiving module is started.

52. The device according to claim 50 or 51, characterized in that The device also includes a transmitting module for backscattering data and / or signals; The second receiving module is further used to receive data and / or signals.

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 and a second signal, wherein the first signal and the second signal are used to wake up a main receiver of the low-power device, and the second signal carries wake-up information.

54. The network device according to claim 53, characterized in that: The first signal is sent periodically or aperiodically.

55. The network device according to claim 53 or 54, characterized in that: In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

56. The network device according to any one of claims 53 to 55, characterized in that: The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

57. The network device according to claim 56, characterized in that The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

58. The network device according to claim 57, 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.

59. The network device according to claim 57 or 58, characterized in that: The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and 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 56, characterized in that: The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

62. The network device according to any one of claims 53 to 61, characterized in that: The n time domain units are different from the m time domain units.

63. The network device according to any one of claims 53 to 62, characterized in that: The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; in, The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

64. A low power consumption device, characterized in that: The low power consumption device comprises: a first receiver; The first receiver is configured to receive a first signal and a second signal, the first signal and the second signal are used to wake up a main receiver of the low power consumption device, and the second signal carries wake-up information.

65. The low power consumption device according to claim 64, characterized in that: The first signal is sent periodically or aperiodically.

66. The low power consumption device according to claim 64 or 65, characterized in that: In a transmission cycle, there is at least one first signal; Alternatively, within one transmission cycle, there are at least one first signal and at least one second signal.

67. The low power consumption device according to any one of claims 64 to 66, characterized in that: The first signal corresponds to n time domain units, and the second signal corresponds to m time domain units; Wherein, n and m are equal or unequal, n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1.

68. The low power consumption device according to claim 67, characterized in that: The first signal is generated by respectively performing a first transformation on n groups of first frequency domain signals, and the n time domain units correspond one-to-one to the n groups of first frequency domain signals; The second signal is generated by respectively performing the first transformation on m groups of second frequency domain signals, and the m time domain units correspond one-to-one to the m groups of second frequency domain signals; The first transformation refers to the transformation of the signal from the frequency domain to the time domain.

69. The low power consumption device according to claim 68, 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.

70. The low power consumption device according to claim 68 or 69, characterized in that: The n groups of first frequency domain signals are generated by respectively undergoing a second transformation on n groups of bit groups; The m groups of second frequency domain signals are generated by respectively undergoing a second transformation on the m groups of bits; A bit group includes one or more bits, and the second transformation refers to the transformation of the signal from the time domain to the frequency domain.

71. The low power consumption device according to claim 70, 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.

72. The low power consumption device according to claim 67, characterized in that: The first signal is generated by modulating n groups of bit groups respectively, and the n time domain units correspond one-to-one to the n groups of bit groups; The second signal is generated by modulating m groups of bits respectively, and the m time domain units correspond one-to-one to the m groups of bits; A bit group includes one or more bits.

73. The low power consumption device according to any one of claims 64 to 72, characterized in that: The n time domain units are different from the m time domain units.

74. The low power consumption device according to any one of claims 64 to 73, characterized in that: The first signal corresponds to a first frequency domain resource, and the second signal corresponds to a second frequency domain resource; The width of the first frequency domain resource is different from the width of the second frequency domain resource; and / or, The central frequency point of the first frequency domain resource is aligned with the central frequency point of the second frequency domain resource; and / or, A frequency domain starting position of the first frequency domain resource is different from a frequency domain starting position of the second frequency domain resource; and / or, The frequency domain end position of the first frequency domain resource is different from the frequency domain end position of the second frequency domain resource.

75. The low power consumption device according to any one of claims 64 to 74, characterized in that: The low-power consumption device further includes: a processor; The processor is configured to perform signal processing based on the first signal; The first receiver is further configured to receive the second signal based on a result of the signal processing; The signal processing includes at least one operation of time domain synchronization, frequency domain synchronization, and automatic gain control AGC.

76. The low power consumption device according to any one of claims 64 to 75, characterized in that: The low-power consumption device further comprises: a processor and a second receiver; The processor is configured to activate the second receiver based on the first signal and / or the second signal.

77. The low power consumption device according to claim 76, characterized in that: The processor is further configured to: Based on the signal quality of the first signal, starting a main receiver of the low power consumption device; and / or, Based on the signal quality of the second signal, starting a main receiver of the low power consumption device; and / or, Based on the wake-up information carried by the second signal, a main receiver of the low-power consumption device is started.

78. The low power consumption device according to claim 76 or 77, characterized in that: The second receiver is configured to receive data and / or signals; and / or, The low power consumption device also includes a transmitter configured for backscattering.

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 11 or 12 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 11 or 12 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 11 or 12 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 11 or 12 to 26.

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