Capability reporting method and device, terminal and network side equipment

Abstract

The invention discloses a capability reporting method and device, a terminal and network side equipment, and belongs to the technical field of wireless communication, and the capability reporting method comprises the steps that the terminal reports capability information to the network side equipment, and the capability information comprises at least one of the following information: the type of a low-power-consumption signal receiver of the terminal; the terminal supports a modulation mode of a low-power-consumption signal; whether the terminal supports a low-power-consumption wake-up signal LP-WUS based on an orthogonal frequency division multiplexing (OFDM) modulation mode is determined.

Description

Technical Field

[0001] The present application belongs to the field of wireless communication technology, and specifically relates to a capability reporting method, apparatus, terminal, and network-side equipment. Background Art

[0002] In related technologies, in order to be suitable for terminals with different receiver types, network-side equipment can send LP-WUS with a modulation mode (also called a waveform mode) of On-Off Keying (OOK) superimposed on Orthogonal Frequency Division Multiplexing (OFDM).

[0003] However, due to the low data rate of the OOK waveform, the time domain length of the LP-WUS of OOK superimposed on OFDM is longer than that of the OFDM waveform when carrying the same information. Therefore, if the network-side device sends the LP-WUS of OOK superimposed on OFDM, in some cases it will cause unnecessary overhead and power consumption for the network-side device to send the LP-WUS. Summary of the Invention

[0004] The embodiments of the present application provide a capability reporting method, apparatus, terminal, and network-side device to reduce the overhead and power consumption of the network-side device in sending LP-WUS.

[0005] In a first aspect, a method for sending a wake-up signal is provided, comprising: an access network device receiving a target message, wherein the target message is used to notify capability information of a paged terminal, the capability information comprising at least one of the following: a low-power signal receiver type of the terminal; a modulation mode of a low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM modulation mode; and the access network device sending the LP-WUS based on the capability information.

[0006] On the second aspect, a capability reporting method is provided, including: a terminal reporting capability information to a network side device, wherein the capability information includes at least one of the following: a low-power signal receiver type of the terminal; a modulation mode of a low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an orthogonal frequency division multiplexing (OFDM) modulation mode.

[0007] According to a third aspect, a method for acquiring terminal capabilities is provided, comprising: a core network device acquiring capability information of the terminal, wherein the capability information includes at least one of the following: a low-power signal receiver type of the terminal; a waveform or modulation method of a low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM waveform or modulation method.

[0008] In a fourth aspect, a wake-up signal sending device is provided, including: a first acquisition module, used to obtain capability information of a terminal, wherein the capability information includes at least one of the following: the low-power signal receiver type of the terminal; the modulation mode of the low-power signal supported by the terminal; whether the terminal supports a low-power wake-up signal LP-WUS based on OFDM modulation mode; and a sending module, used to send LP-WUS based on the capability information.

[0009] In the fifth aspect, a capability reporting device is provided, including: a second acquisition module for acquiring the capability information of the terminal; a first transmission module for reporting the capability information to the network side device; wherein the capability information includes at least one of the following: the low-power signal receiver type of the terminal; the modulation method of the low-power signal supported by the terminal; whether the terminal supports the low-power wake-up signal LP-WUS based on the orthogonal frequency division multiplexing OFDM modulation method.

[0010] In the sixth aspect, a device for acquiring terminal capabilities is provided, including: a third acquisition module for acquiring capability information of the terminal; a determination module for determining the capability of the terminal based on the capability information; wherein the capability information includes at least one of the following: the low-power signal receiver type of the terminal; the waveform or modulation method of the low-power signal supported by the terminal; whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM waveform or modulation method.

[0011] In a seventh aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0012] In an eighth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, and the communication interface is used to couple with the processor.

[0013] In the ninth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0014] In the tenth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the second aspect, or to implement the steps of the method described in the third aspect, and the communication interface is used to couple with the processor.

[0015] In the eleventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0016] In the twelfth aspect, a wireless communication system is provided, including: a terminal, an access network device and a core network device, wherein the terminal can be used to execute the steps of the method described in the first aspect, the access network device can be used to execute the steps of the method described in the second aspect, and the core network can be used to execute the steps of the method described in the third aspect.

[0017] In the thirteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect, or implement the steps of the method described in the third aspect.

[0018] In the fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the second aspect.

[0019] In an embodiment of the present application, an access network device obtains capability information of a terminal, where the capability information includes at least one of the following: the type of low-power signal receiver of the terminal; the modulation mode of the low-power signal supported by the terminal; and whether the terminal supports LP-WUS based on OFDM modulation. Based on the capability information, the LP-WUS is transmitted. Therefore, the network-side device can obtain the type of low-power receiver of the terminal, or the type of LP-WUS waveform supported by the terminal, thereby enabling the network-side device to transmit the corresponding type of LP-WUS based on the terminal's capabilities, thereby reducing LP-WUS overhead and power consumption of the network-side device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A block diagram showing a wireless communication system to which embodiments of the present application may be applied;

[0021] Figure 2a A schematic diagram of LP-WUS signaling;

[0022] Figure 2b is a schematic diagram of another LP-WUS signal;

[0023] Figure 3A schematic diagram showing a flow chart of a capability reporting method provided in an embodiment of the present application is shown;

[0024] Figure 4 A schematic diagram illustrating a flow chart of a method for sending a wake-up signal provided in an embodiment of the present application;

[0025] Figure 5 A schematic diagram illustrating a flow chart of a method for acquiring terminal capabilities provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram showing the structure of a capability reporting device provided in an embodiment of the present application is shown;

[0027] Figure 7 A schematic diagram illustrating the structure of a device for sending a wake-up signal provided in an embodiment of the present application is shown;

[0028] Figure 8 A schematic diagram illustrating the structure of a device for acquiring terminal capabilities provided in an embodiment of the present application is shown;

[0029] Figure 9 A schematic diagram showing the structure of a communication device provided in an embodiment of the present application is shown;

[0030] Figure 10 A schematic diagram showing the hardware structure of a terminal provided in an embodiment of the present application is shown;

[0031] Figure 11 A schematic diagram showing the hardware structure of a network-side device provided in an embodiment of the present application is shown;

[0032] Figure 12 A schematic diagram of the hardware structure of another network-side device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0034] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0035] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0036] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration, 6G) communication system.

[0037] Figure 1The block diagram of a wireless communication system applicable to the embodiments of the present application is shown. The wireless communication system includes a terminal (User Equipment, UE) 11 and a network-side device 12. The terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (AccessPoint, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0038] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( Function, AF), Location Management Function (LMF), Gateway Mobile Location Center (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiment of the present application, only the core network equipment in the NR system is introduced as an example, and the specific type of the core network equipment is not limited.

[0039] To reduce a terminal's reception activity in standby mode, effectively shutting down the radio frequency (RF) and baseband (MODEM) modules, thereby significantly reducing power consumption during communication reception, this can be achieved by integrating the aforementioned low-power receiver into the terminal's receiving module. In one embodiment, this near-zero-power receiver eliminates the complex signal detection (e.g., amplification, filtering, quantization, etc.) required by the RF module and the signal processing required by the MODEM, relying solely on passive matched filtering and low-power signal processing.

[0040] In one embodiment, the wake-up signal is some relatively simple on-off keying signal, and the time domain pattern of the on-off keying signal is as follows: Figure 2a As shown, the receiver can then receive the wake-up notification through simple energy detection, followed by possible sequence detection and identification. In another embodiment, the low-power wake-up signal can be an FSK signal, an OFDM signal, or a superposition of OFDM and OOK or FSK. In addition, while the terminal activates the low-power receiver to receive the wake-up signal, the main receiver module can maintain a low power consumption level, thereby achieving power saving by receiving the wake-up signal.

[0041] The reception of the low-power wake-up signal can be applied to a terminal in the Radio Resource Control (RRC) idle (RRC_idle) state or the RRC inactive (RRC_inactive) state, and can also be applied to a terminal in the RRC connected (RRC_connected) state, thereby achieving terminal energy saving.

[0042] Since OFDM is the most common signal modulation method in existing NR systems, OOK signals can be generated using OFDM signal generation methods. For example, the transmission or non-transmission of an OFDM-modulated sequence represents the ON / OFF state in the time domain. OOK signals can be received using receivers with lower power consumption, but such receivers have poor reception performance and coverage.

[0043] Furthermore, the OFDM modulation sequence of the modulation ON can further carry information through different sequences, for example, two sequences represent 0 and 1 information respectively, or four sequences represent 00, 01, 10, and 11 information respectively, such as Figure 2b shown.

[0044] like Figure 2b As shown, part of the information is carried through OOK modulation, and the other part of the information is carried through the OFDM sequence of the ON level.

[0045] Since demodulating the OFDM sequence requires a receiver capable of receiving OFDM signals, generally speaking, such receivers have better demodulation performance than low-power receivers that can only decode OOK signals.

[0046] The current protocol supports an OOK-superimposed OFDM waveform or modulation scheme for LP-WUS, adapting it to terminals with different receiver capabilities. Considering terminals with low-power receivers based on OOK waveforms, the OOK waveform's lower complexity limits its ability to carry information compared to OFDM waveforms. Therefore, the transmission time domain of the OOK-superimposed OFDM LP-WUS increases, increasing the network overhead and power consumption of LP-WUS transmission.

[0047] In addition, it should be noted that the OOK waveform only uses the time domain to carry information, and does not use the frequency domain to carry information, which is different from the OFDM waveform.

[0048] If the current network pages both OOK-based UEs (OOK-based UEs, i.e., UEs capable of decoding OOK signals) and OFDM-based UEs (OFDM-based UEs, i.e., UEs capable of decoding OFDM signals), or only OOK-based UEs, the network-side device needs to send at least 8 OOK code chips to carry 8 bits of information. If coding, such as Manchester coding, is used, more chips are required and more resources are occupied. However, if the current network only pages OFDM-based UEs, assuming that an OOK on chip can carry 4 bits of OFDM information, the network-side device only needs an OFDM signal of 2 OOK chips to complete the transmission of 8-bit LP-WUS information. The advantage of this is that it can save the time domain resources and power consumption occupied by sending LP-WUS on the network side.

[0049] However, the premise for saving LP-WUS overhead and power consumption is that the network-side device knows the low-power receiver type of the terminal or the LP-WUS modulation type (also called waveform type) supported by the terminal. However, in related technologies, the network-side device cannot know the low-power receiver type of the terminal or the LP-WUS waveform type supported by the terminal. Therefore, the network-side device sends OOK superimposed OFDM LP-WUS to all terminals, resulting in an increase in the network-side device's overhead and power consumption for sending LP-WUS.

[0050] To address the above problems, an embodiment of the present application provides a solution, so that the network side device can know the low-power receiver type of the terminal or the LP-WUS modulation type supported by the terminal, thereby saving LP-WUS overhead and transmission power consumption.

[0051] The technical solutions provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0052] Figure 3 1 shows a flow chart of a capability reporting method in an embodiment of the present application. The method 300 can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. Figure 3 As shown, the method may include the following steps.

[0053] S310: The terminal reports capability information to the network device.

[0054] In an embodiment of the present application, the capability information includes at least one of the following 1) to 3).

[0055] 1) A low-power signal receiver type of the terminal. Optionally, the low-power signal receiver type includes an OOK low-power receiver type, which can decode OOK signals, or the low-power signal receiver type includes an OFDM low-power receiver type, which can decode OFDM signals.

[0056] 2) The modulation mode (also referred to as waveform) of the low-power signal supported by the terminal; for example, the modulation mode of the low-power signal supported by the terminal may be at least one of an OOK modulation mode and an OFDM modulation mode.

[0057] 3) Whether the terminal supports LP-WUS based on OFDM modulation. This capability information can indicate to the network side device whether the terminal's low-power receiver has OFDM signal demodulation capability.

[0058] In an embodiment of the present application, the UE may first report the capability information to the access network device, for example, by sending the UE-NR-Capability to the access network device (for example, a base station) through RRC signaling, and the UE-NR-Capability includes the above capability information. Then, the access network device may send the UE capability information to the core network (CN) device, which is saved by the CN device. For example, the base station sends the UE capability information to the AMF through the UE RADIO CAPABILITY INFO INDICATION. The AMF can obtain the UE's radio capabilities, including the above capability information.

[0059] In one embodiment, the access network device may also store the capability information as an INACTIVE UE CONTEXT to ensure that the anchor gNB can pass the UE capability information to the target gNB when paging the UE.

[0060] Through the technical solution provided in the embodiments of the present application, the terminal can report its capability information to the network-side device, so that the network-side device can learn the low-power receiver type of the terminal or the LP-WUS waveform type supported by the terminal, and then the network-side device can send a suitable LP-WUS to the paging terminal based on the capability information of the paging terminal, thereby saving the LP-WUS overhead and the power consumption of the network-side device.

[0061] It should be noted that the purpose of LP-WUS is to trigger a terminal to monitor paging. In other words, the terminal can determine whether to monitor paging based on the reception of LP-WUS. Furthermore, when the terminal is triggered by LP-WUS to monitor paging, it determines whether it has been paged or obtains a specific paging message based on the monitored paging.

[0062] In an optional implementation, the method may further include the following S312 and S314.

[0063] S312, the terminal obtains target information.

[0064] In this implementation, the target information may include low-power signal configuration information. Alternatively, the target information may include low-power signal configuration information and target indication information.

[0065] Among them, the low-power signal configuration information includes LP-WUS configuration information, and the terminal can determine at least one of the following items based on the low-power signal configuration information: LP-WUS time-frequency domain resource information, OOK superimposed OFDM LP-WUS total length, the number of information bits carried by LP-WUS, LP-WUS coding method, LP-WUS time domain structure, LP-WUS carried information bits mapping method, etc.

[0066] The target indication information is used to determine at least one of the time domain length occupied by the target LP-WUS, the number of repeated transmissions of the target LP-WUS, the number of OFDM information bits contained in a code chip (another expression is the number of OFDM candidate sequences that can be carried in a code chip), the type indication of the LP-WUS, and whether the LP-WUS applies Manchester coding. The target LP-WUS is an LP-WUS received by a terminal of an OFDM low-power receiver type. Optionally, the type indication of the LP-WUS is used to indicate the type of LP-WUS, and may include one of the following: an LP-WUS with an OOK superimposed OFDM waveform, an LP-WUS with an OFDM waveform, and an LP-WUS with whether Manchester coding is applied.

[0067] It should be noted that for OFDM low-power receiver terminals (hereinafter referred to as OFDM terminals), they can receive LP-WUS with two waveforms or modulation schemes: 1) LP-WUS with an OOK superimposed OFDM waveform; 2) LP-WUS with an OFDM waveform. When the LP-WUS waveform is an OOK superimposed OFDM waveform, the OFDM terminal can intercept the OFDM information portion and / or the OOK information portion of the LP-WUS with an OOK superimposed OFDM waveform to obtain the complete indication information carried by the LP-WUS. Due to the strong information-carrying capacity of the OFDM waveform, the terminal may only need to intercept the first few OOK chip lengths to obtain the complete indication information carried by the LP-WUS, without having to receive the entire LP-WUS with an OOK superimposed OFDM waveform. When the LP-WUS waveform is an OFDM waveform, the length of the target LP-WUS does not need to accommodate the OOK waveform and can be shortened to K OFDM symbol lengths or slot lengths. Therefore, the network-side device can achieve network energy saving and reduce LP-WUS sending overhead by sending the target LP-WUS.

[0068] In one embodiment, the network side device sends the target LP-WUS when only paging OFDM terminals. It is understandable that the target LP-WUS is directed to OFDM terminals, that is, only OFDM terminals can correctly demodulate, and OOK terminals cannot successfully demodulate.

[0069] Optionally, the OFDM terminal needs to (blindly) detect at least one LP-WUS of length. For example, the OFDM terminal detects two LP-WUS lengths: one length is the time domain resource length required for OFDM low-power type terminals in the OOK superimposed OFDM LP-WUS (in some embodiments, this length is less than or equal to the total length of the OOK superimposed OFDM LP-WUS), or the time domain resource length of the OFDM-modulated LP-WUS (it should be noted that only OFDM terminals can correctly demodulate this OFDM-modulated LP-WUS, and OOK terminals cannot successfully demodulate it).

[0070] In another embodiment, when the target information includes an indication of the LP-WUS type, that is, when the LP-WUS transmitted by the network device includes information indicating the current LP-WUS type, the OFDM terminal does not need to blindly detect LP-WUSs of various lengths. Instead, it can determine the target LP-WUS length based on the LP-WUS type indication. For example, if the LP-WUS indicates that the current LP-WUS is an OFDM-based LP-WUS, the OFDM terminal will detect the LP-WUS according to a specific length. It is understood that this specific length is less than or equal to the LP-WUS length of the OOK-superimposed OFDM. Therefore, the network can achieve cost and power savings.

[0071] Optionally, monitoring the LP-WUS by the terminal according to the target information may include: when the low-power receiver type of the terminal is an OFDM low-power receiver type, the terminal detecting an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length. In this implementation, when the low-power receiver type of the terminal is an OFDM low-power receiver type, the terminal may receive the LP-WUS according to the first length, where the first length may be the time domain resource length required for the LP-WUS received by a terminal of the OFDM low-power receiver type, for example, the time domain resource length required for an OFDM low-power terminal in an LP-WUS that is an OOK superimposed OFDM, or the time domain resource length of an LP-WUS based on OFDM modulation. The first length may be a length within a predetermined range, and the terminal detects an LP-WUS with a length within the predetermined range. Alternatively, the first length may include at least one candidate length, and the terminal detects an LP-WUS of each candidate length.

[0072] Optionally, the low-power signal configuration information may include at least one of the following: period, offset (for example, offset relative to PO, or offset relative to SFN 0), LP-WUS load, LP-WUS cyclic redundancy check (CRC) length, coding information (for example, whether to encode, coding type, such as Manchester coding, code rate, such as Manchester coding with length L=2), preamble length, LP-WUS time length, OOK modulation mode (such as OOK-1 or OOK-4), and the number of OOK chips in an OFDM symbol. Through the above-mentioned low-power signal configuration information, a terminal that receives LP-WUS using an OOK low-power receiver type receiver (also referred to as a terminal based on OOK sequence detection) can determine the time length L1 and time resource location of the LP-WUS.

[0073] Optionally, the low-power signal configuration information may further include information for determining the number of bits carried by the LP-WUS within a time unit. For example, the number of OFDM sequences configured in a second time unit, first time unit information, etc. The terminal may determine the duration of the LP-WUS to be received based on at least one of the number of bits carried within a time unit, the P-WUS payload, CRC bits, and the duration of the LP-WUS configured by the network node. Optionally, the information for determining the number of bits carried by the LP-WUS within a time unit may be configured by a network-side device or may be agreed upon by a protocol.

[0074] The first time unit may be a time unit carrying an OFDM signal in an LP-WUS in an OOK superimposed OFDM modulation mode, and the second time unit may be a time unit carrying an OFDM signal in an LP-WUS signal in an OFDM modulation mode.

[0075] S314: The terminal monitors the LP-WUS according to the target information.

[0076] In this implementation, after acquiring the target information, the terminal may receive the LP-WUS according to the target information.

[0077] Through the technical solution provided in the embodiments of the present application, the terminal can monitor LP-WUS according to the target information, and the terminal whose receiver type is an OFDM low-power receiver type can receive LP-WUS based on OFDM modulation or OOK superimposed OFDM modulation based on the target indication information.

[0078] In an optional implementation, the terminal monitoring the LP-WUS according to the target information may include: the terminal monitoring the LP-WUS according to at least one of the target information and the capability information of the terminal. In this implementation, the terminal may monitor the LP-WUS according to at least one of the target information and the capability information of the terminal, so that the terminal can decode information bits carried by the LP-WUS according to its capabilities.

[0079] Optionally, a terminal whose receiver type is an OFDM low-power receiver type may detect the LP WUS based on a complex signal sequence.

[0080] The complex signal sequence may include a complex sequence determined by at least one of the following or a sequence determined by multiplying at least two of the following generated real or complex sequences:

[0081] 1) M sequence;

[0082] 2) ZC sequence;

[0083] 3) gold sequence; Constant Amplitude Zero Autocorrelation (CAZAC) sequence;

[0084] 4) A sequence generated by the constellation points corresponding to one or more of the following modulation schemes: binary phase shift keying (BPSK), pi / 2 (pi / 2) BPSK, quadrature phase shift keying (QPSK), 16-quadrature amplitude modulation (16QAM), 64QAM, 256QAM, 1024QAM, and 4096QAM.

[0085] In an optional implementation, the terminal monitors a low power consumption wake-up signal LP-WUS according to the target information, including at least one of the following 1) to 4).

[0086] 1) When the target indication information indicates that the target LP-WUS carries an OOK signal, the terminal determines that part or all of the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information. In this embodiment, the target LP-WUS is an LP-WUS using an OOK superimposed OFDM modulation scheme, and the terminal determines that the time domain resources occupied by the target LP-WUS determined according to the low-power signal configuration information are part or all of the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information.

[0087] 2) When the target indication information indicates that the target LP-WUS does not carry an OOK signal, the terminal determines that all time domain resources in the target time domain are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; in this embodiment, the target LP-WUS is an LP-WUS using OFDM modulation, and the terminal determines that the time domain resources occupied by the target LP-WUS determined according to the low-power signal configuration information are all the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information.

[0088] 3) When the target indication information indicates that the target LP-WUS uses Manchester coding, the terminal determines that part or all of the time domain resources in the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; in this embodiment, the target LP-WUS uses Manchester coding, and the terminal determines that the time domain resources occupied by the target LP-WUS determined according to the low-power signal configuration information are part or all of the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information.

[0089] 4) When the target indication information indicates that the target LP-WUS does not use Manchester encoding, the terminal determines that all time domain resources in the target time domain are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information. In this embodiment, the target LP-WUS does not use Manchester encoding, and the terminal determines that the time domain resources occupied by the target LP-WUS determined according to the low-power signal configuration information are all the time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information.

[0090] In the above implementation, when it is determined that the target LP-WUS includes multiple repeated transmissions, the terminal may monitor one transmission of the target LP-WUS or may monitor multiple transmissions of the target LP-WUS.

[0091] In an optional implementation, when the LP-WUS monitored by the terminal is a target LP-WUS, if the terminal uses an OFDM low-power receiver type receiver to receive the target LP-WUS based on an OFDM sequence waveform, the terminal determines its own wake-up information based on the target LP-WUS; if the terminal uses an OOK low-power receiver type receiver to receive the target LP-WUS based on an on-off keying signal waveform, the terminal determines that the current reception is erroneous, or ignores the reception of the above-mentioned target LP-WUS.

[0092] Based on the same technical concept, an embodiment of the present application also provides a method for sending a wake-up signal.

[0093] Figure 4 A flowchart of a method for sending a wake-up signal provided in an embodiment of the present application is shown. The method 400 can be executed by an access network device, such as Figure 4 As shown, the method mainly includes the following steps.

[0094] S410: The access network device obtains capability information of the terminal.

[0095] The capability information includes at least one of the following: the low power signal receiver type of the terminal; the modulation mode of the low power signal supported by the terminal; and whether the terminal supports LP-WUS based on OFDM modulation mode.

[0096] In one implementation, the access network device may receive capability information from the terminal. For example, the terminal reports the capability information to a network-side device, and the access network device receives the capability information reported by the terminal.

[0097] In another implementation, the access network device may also receive the capability information of the terminal from another access network device, for example, the receiving network device is a target access network device, and receives the capability information of the terminal from an anchor access network device of the terminal.

[0098] In another implementation, the access network device may also receive a target message from the core network device, where the target message is used to notify the capability information of the paged terminal. For example, the core network device may carry the capability information of the paged terminal in the core network paging message.

[0099] Optionally, the low-power signal receiver type includes at least one of the following:

[0100] 1)OOK low-power receiver type;

[0101] 2) FDM low power receiver type.

[0102] Optionally, the modulation mode of the low-power signal includes one of OOK, OFDM, and OOK superimposed on OFDM.

[0103] S412: The access network device sends an LP-WUS based on the capability information.

[0104] In an embodiment of the present application, the access network device sends an LP-WUS for waking up the terminal based on the capability information of the paged terminal. For example, the access network device can determine whether the currently paging terminal is a terminal with an OFDM low-power receiver based on the capability information of the paged terminal. If so, the access network device can send a target LP-WUS to trigger the OFDM-capable terminal to listen for paging messages; wherein the target LP-WUS is an LP-WUS with an OFDM waveform. If the currently paging terminal is not a terminal with an OFDM low-power receiver, it means that the currently paged terminal includes a terminal with OOK demodulation capability. In this case, the access network device can send a WUS signal with OOK superimposed on OFDM of normal length to wake up the terminal with OOK demodulation capability to listen for paging messages.

[0105] In an optional implementation, the access network device sending the LP-WUS based on the capability information may include the following steps:

[0106] In a case where it is determined based on the capability information that the paged terminal includes a terminal with a target capability, the access network device sends a target LP-WUS; wherein the target capability includes at least one of the following:

[0107] 1)OFDM low-power receiver type;

[0108] 2) LP-WUS supporting OFDM modulation.

[0109] The target LP-WUS satisfies at least one of the following: an LP-WUS based on an OFDM modulation mode, an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

[0110] Optionally, the paging terminal is a terminal paged on a PO, that is, a paged terminal among terminals associated with a PO.

[0111] Optionally, when it is determined based on the capability information that the paged terminals include terminals with target capabilities, the access network device sends a target LP-WUS. This can be understood as the case where it is determined based on the capability information that the paged terminals only include terminals with target capabilities, the access network device sends the target LP-WUS. Alternatively, it can be understood as the case where it is determined based on the capability information that the paged terminals do not include terminals of the OOK low-power receiver type, the access network device sends the target LP-WUS.

[0112] In one embodiment, the network device sends the target LP-WUS when it determines that the only terminal being paged is an OFDM terminal. It is understandable that the target LP-WUS is for OFDM terminals, which means that only OFDM terminals can correctly demodulate, and OOK terminals cannot successfully demodulate.

[0113] Optionally, the OFDM terminal needs to (blindly) detect at least one LP-WUS of length. For example, the OFDM terminal detects two LP-WUS lengths: one length is the time domain resource length required for OFDM low-power type terminals in the OOK superimposed OFDM LP-WUS (in some embodiments, this length is less than or equal to the total length of the OOK superimposed OFDM LP-WUS), or the time domain resource length of the OFDM-modulated LP-WUS (it should be noted that only OFDM terminals can correctly demodulate this OFDM-modulated LP-WUS, and OOK terminals cannot successfully demodulate it).

[0114] In another embodiment, when the target information includes an indication of the LP-WUS type, that is, when the LP-WUS transmitted by the network carries information regarding the current LP-WUS type, the OFDM terminal does not need to blindly detect LP-WUSs of various lengths. Instead, it can determine the target LP-WUS length based on the LP-WUS type indication. For example, if the LP-WUS indicates that the current LP-WUS is an OFDM-based LP-WUS, the OFDM terminal will detect the LP-WUS according to a specific length. It is understood that this specific length is less than or equal to the LP-WUS length of the OOK-superimposed OFDM LP-WUS. Consequently, the network can achieve cost and power savings.

[0115] In one implementation, the target message may be a message from the core network, such as a message sent by the AMF to an access network device. For example, the information element carrying capability information may be: UE radio capability for LP-WUS reception (UE radio capability for LP-WUS reception). For example, when paging is initiated by the CN, the CN paging message sends the capability information of the paging terminal to the base station. The base station determines whether the paging terminal is an OFDM low-power receiver terminal based on the capability information of the paging terminal. Furthermore, if it is, the base station may send a compact / compressed / truncated WUS signal to trigger the OFDM-capable terminal to listen for the paging message; the compact / compressed / truncated WUS signal is the target LP-WUS. For example, the target LP-WUS is an OFDM waveform LP-WUS. If not, it indicates that the currently paged terminal includes a terminal capable of OOK demodulation. In this case, the base station needs to send a normal-length OOK superimposed OFDM WUS signal to wake up the OOK-capable terminal to listen for the paging message.

[0116] In another implementation, the target message may also be a message from another access network device, such as an anchor access network device. For example, the information element carrying capability information may include the UE radio capability for paging (UE radio capability for paging). The capability information may include a capability parameter, such as the UE radio capability for LP-WUS reception. For example, when paging is initiated by the anchor RAN, the RAN paging message indicates the capability information of the paging terminal to the target gNB (i.e., the access network device described above). The target gNB determines whether the current paging terminal is an OFDM low-power receiver terminal based on the capability information of the paging terminal. Furthermore, if so, the base station may send a compact / compressed / truncated WUS signal to trigger the OFDM-capable terminal to listen for the paging message; the compact / compressed / truncated WUS signal is the target LP-WUS. For example, the target LP-WUS is an LP-WUS with an OFDM waveform. If not, it means that the terminals currently being paged include terminals with OOK demodulation capability, and the base station needs to send a WUS signal of normal length of OOK superimposed OFDM to wake up the terminals with OOK demodulation capability to monitor the paging message.

[0117] Through the technical solutions provided by the embodiments of the present application, the access network device can obtain the capability information of the paging terminal through the target message, and then determine whether to send a compact / compressed / truncated WUS signal based on the capability information. This reduces the WUS transmission time and saves WUS transmission overhead.

[0118] Based on the same technical concept, an embodiment of the present application also provides a method for acquiring terminal capabilities.

[0119] Figure 5 A flow chart showing a method for acquiring terminal capabilities provided in an embodiment of the present application is shown as follows: Figure 5 As shown, the method 500 mainly includes the following steps:

[0120] S510: The core network device obtains capability information of the terminal.

[0121] The capability information includes at least one of the following:

[0122] The low-power signal receiver type of the terminal;

[0123] The waveform or modulation mode of the low-power signal supported by the terminal;

[0124] Whether the terminal supports LP-WUS based on OFDM waveform or modulation mode.

[0125] Optionally, the low-power receiver type may include at least one of the following: an OOK low-power receiver type, an OFDM low-power receiver type. The modulation mode of the low-power signal may include at least one of the following: OOK, OFDM, and OOK superimposed on OFDM.

[0126] Optionally, the core network device can obtain the capability information through the base station. For example, the UE reports the capability information to the base station, for example, by sending the RRC signaling UE-NR-Capability to the base station, and the UE-NR-Capability includes the above capability information. The base station then sends the UE capability information to the CN, which is stored by the CN. For example, the base station sends the UE capability information to the AMF through the UE RADIOCAPABILITY INFO INDICATION.

[0127] In an optional implementation, if Figure 5 As shown, the method may further include the following steps:

[0128] S512: The core network device sends a paging message, where the paging message includes the capability information of the paged terminal.

[0129] For example, the core network device may send a paging message to the target base station, where the paging message includes the capability information of the paged terminal, so that the base station can learn the capability of the terminal currently being paged.

[0130] In an embodiment of the present application, a network node, such as a base station, sends an LP-WUS for a low-power receiver of a terminal to wake up a main receiver. The LP-WUS sent by the access network device can be an on-off keying signal (OOK signal). In addition, the LP-WUS can also carry a complex signal sequence, for example, modulating the complex signal sequence on the ON chip of the OOK signal (for example, the complex signal sequence is a time domain signal before DFT), or modulating the complex signal sequence on an OFDM symbol (for example, the complex signal sequence is a frequency domain signal before IFFT). Optionally, the complex signal sequence is a complex sequence determined by multiplying at least one of the following two real or complex sequences: an M sequence, a ZC sequence, a gold sequence, a CAZAC sequence, a sequence generated by a constellation point corresponding to one or more modulation modes, wherein the modulation mode may include: BPSK, pi / 2BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM or 4096QAM. The complex signal sequence is represented below as an OFDM sequence.

[0131] Within a time unit, for example, within a first time unit, the LP-WUS sent by the access network device can carry M*log2(N) bits via the OFDM sequence within an OOK ON chip, where M is the number of OOK ON chips within the first time unit. For another example, within the first time unit, the OFDM sequence within the OOK ON chip can carry M*log2(N) bits, and the time position of the OFDM sequence, or the time position of the OOK ON chip, can carry M1 / L bits, where M1 is the number of OOK chips within the first time unit and L is the code length. That is, the first time unit can carry M*log2(N)+M1 / L. For another example, within the first time unit, the OFDM sequence within the OOK ON chip can carry M*log2(N), and the OOK on / off waveform of the OOK chip can carry M1 / L bits. That is, the first time unit can carry M*log2(N)+M1 / L. The first time unit is configured by the network node or predefined by the protocol. The first time unit may include multiple second time units. The second time unit is an OOK chip, for example, an OOK ON chip, or a portion of an OFDM symbol. For example, the time resource of an OFDM symbol can be divided into M2 equal-length sub-portions, and the second time unit is a sub-portion. For convenience of description below, the second time unit is exemplified by an OOK chip.

[0132] If the low-power receiver used by the terminal does not have the ability to detect OFDM sequences and only has the ability to detect OOK signals (that is, the receiver of the above-mentioned OOK low-power receiver type can be recorded as a first type of low-power receiver), then the terminal can only demodulate M1 / L information bits in a first time unit. If the low-power receiver used by the terminal can detect OFDM sequences (that is, the receiver of the above-mentioned OFDM low-power receiver type can be recorded as a second type of low-power receiver), then the terminal can demodulate (M*log2(N)+M1 / L) or M*log2(N) bits in one OFDM symbol.

[0133] To support the same LP-WUS to be able to serve terminals with two types of low-power receivers simultaneously, as a relatively reasonable implementation, the number of valid information bits (payloads) obtained by the two types of low-power receivers receiving the same LP-WUS is the same. However, for the same LP-WUS signal, within one time unit, the number of bits obtained based on OOK symbol detection and the number of bits obtained based on OFDM sequence detection are different, such as the M1 / L and (M * log2(N) + M1 / L) or M * log2(N) bits described above. Then it may occur that the second type of low-power receiver based on OFDM sequence detection can obtain all bit information based on a partial time resource of this LP-WUS signal. For example, the time resource of LP-WUS is L1 OFDM symbols. The first type of low-power receiver based on OOK symbol detection needs to receive L1 OFDM symbols to obtain the complete payload information. The second type of low-power receiver based on OFDM sequence detection only needs to receive L2 OFDM symbols (L1 < L2) to obtain the complete payload information.

[0134] Based on one implementation, the access network device can send the corresponding OFDM sequence in the first L2 symbols to ensure that the second type of low-power receiver can obtain the complete payload information. The OFDM signals sent in the remaining (L1 - L2) symbols are not restricted, but it is necessary to ensure that they do not affect the detection of OOK symbols by the first type of low-power receiver. Based on another implementation, the access network device repeats the transmission of the payload information based on a predefined rule for the OFDM sequence in one or more of the remaining (L1 - L2) symbols. Then the second type of low-power receiver can improve the detection performance based on the repeated transmission of the payload information. For example, the payload to be sent by LP-WUS is 8-bit information. Since the first type of low-power receiver can only obtain 2 bits of information per OFDM symbol, 4 OFDM symbols are required. However, for the second type of low-power receiver, one OFDM symbol can obtain 6 bits of information. Therefore, 4 OFDM symbols can carry up to 3 repeated transmissions, and each repeated transmission carries 8-bit information.

[0135] If an LP-WUS only wakes up terminals of one type of low-power receiver, for example, a receiver using the OFDM low-power receiver type to receive LP-WUS, if the payload information is 8 bits, the access network device only needs to send 2 OFDM symbols.

[0136] Therefore, it may occur that in different scenarios, even if the payload size of LP-WUS is fixed, the overhead of the access network device sending LP-WUS is different. To enable the terminal based on OFDM sequence detection to correctly demodulate, a method needs to be defined so that the terminal can determine the time length of the LP-WUS sent by the access network device and whether the LP-WUS contains a single transmission or multiple transmissions.

[0137] In order to enable OOK detection-based terminals (terminals that use OOK low-power receivers to receive LP-WUS) and OFDM sequence detection-based terminals (using OFDM low-power receivers) to correctly demodulate LP-WUS, the access network device sends target information. The target information includes at least one of the following: period, offset (e.g., offset relative to PO or offset relative to SFN 0), LP-WUS payload, LP-WUS CRC length, coding information (e.g., whether coded, coding type such as Manchester coding, code rate such as Manchester coding with length L=2), preamble length, LP-WUS time length, OOK modulation mode (e.g., OOK-1 or OOK-4), and the number of OOK chips M2 in one OFDM symbol. The terminal that uses the first type of low-power receiver to receive LP-WUS determines the time length L1 and time resource location of the first signal based on the low-power signal configuration information.

[0138] To ensure that terminals using OFDM low-power receivers can correctly demodulate the LP-WUS, the access network equipment may also configure or predefine information in the standard for determining the number of bits carried by the LP-WUS within a time unit. For example, this may include the number of OFDM sequences configured in a second time unit, first time unit information, and so on. The terminal may determine the duration of the LP-WUS to be received based on at least one of the number of bits carried within a time unit, the LP-WUS payload, CRC bits, and the duration of the LP-WUS configurable by the network-side equipment. The terminal may also determine whether the LP-WUS includes one or more transmissions.

[0139] In one implementation, a terminal receiving LP-WUS using an OOK low-power receiver type receiver determines the time length L1 and time resource location of the LP-WUS according to the low-power signal configuration information, and receives the LP-WUS of the time length L1 at the time resource location.

[0140] In another implementation, a terminal with an OFDM low-power receiver type (also described as a terminal based on OFDM sequence detection) can determine the time length of the LP-WUS signal to be received as L2 (for example, the number of OFDM symbols and OOK chips required) based on the LP-WUS payload (configured by the network device or predefined by the standard), CRC (whether the information carried by the OFDM sequence configured by the network node or predefined by the standard includes CRC bits, or the number of CRC bits included), and the number of bits carried in a time unit. The terminal always receives the target LP-WUS based on L2. L2 ≤ L1. A terminal receiving the LP-WUS using an OFDM low-power receiver type receives the target LP-WUS based on the time resource location of the LP-WUS determined by L2 and the low-power signal configuration information. The terminal attempts to receive a transmission at the time resource location. In this way, regardless of whether the network device sends the LP-WUS according to L1 or L2, the terminal receiving the LP-WUS using an OFDM low-power receiver type can correctly receive the LP-WUS. However, when the network-side device sends the LP-WUS according to L1, the terminal cannot obtain additional demodulation gain.

[0141] In another implementation, a terminal having an OFDM low power receiver type (which may also be described as an OFDM sequence detection-based terminal) determines the duration of the target LP-WUS to be received based on the target indication information. For example, the target indication information indicates that the target LP-WUS includes a single transmission or multiple transmissions. Preferably, the target indication information indicates the number of transmissions, such as 1, 2, or N. rep. Alternatively, the target indication information indicates that the target LP-WUS length is used in whole or in part for LP-WUS according to the time resources determined by the low-power signal configuration information. Preferably, if the target indication information indicates that the target LP-WUS length is used in part for LP-WUS according to the time resources determined by the low-power signal configuration information, the terminal using an OFDM low-power receiver type receiver to receive LP-WUS determines the length of the partial resources as L2 based on the LP-WUS payload, CRC and the number of bits carried within a time unit. The terminal using an OFDM low-power receiver type receiver to receive LP-WUS receives the target LP-WUS based on L2 and the time resource position of the LP-WUS determined by the low-power signal configuration information. In this way, the network node can control the length of the LP-WUS sent at different LP-WUS occasions (occasion) according to the actual grouping situation, thereby reducing the overhead of the LP-WUS. For example, if an LP-WUSoccasion is only used to wake up a terminal that uses an OFDM low-power receiver to receive an LP-WUS, a shorter LP-WUS (e.g., length L2) can be sent. Otherwise, a longer LP-WUS (e.g., length L1) needs to be sent. The network node can send target indication information according to the corresponding situation, so that the terminal can receive the LP-WUS according to the length of the LP-WUS actually sent by the network node, so that the terminal can save power consumption or improve detection performance.

[0142] Optionally, the target indication information may indicate information of the first time unit. For example, the target indication information indicates the number of OFDM symbols or OOK chips occupied by the first time unit, or the target indication information indicates the number of bits Y carried by the OOK symbol in the first time unit, and the length of the first time unit (the number of occupied OOK chips or OFDM symbols) can be determined based on Y and the coding length, or the target indication information indicates the number of bits X carried by the OFDM sequence of the first time unit, and the length of the first time unit can be determined based on X and the number of OFDM sequences of an OOK chip. For another example, the length of the first time unit is predefined, and the target indication information indicates whether to use / enable the first time unit.

[0143] In one implementation, if the target indication information indicates the use of a first time unit, or indicates information for determining the time length of the first time unit, the terminal receiving the LP-WUS using an OFDM low-power receiver type receiver receives the target LP-WUS based on the time resource location of the LP-WUS determined by the low-power signal configuration information. The terminal assumes that the low-power signal configuration information includes multiple repeated transmissions. Optionally, if the protocol stipulates that information not indicating not to use the first time unit indicates the use of the first time unit, if the terminal receiving the LP-WUS using an OFDM low-power receiver type receiver does not receive information indicating not to use the first time unit, the terminal receiving the LP-WUS using an OFDM low-power receiver type receiver receives the target LP-WUS based on the time resource location of the LP-WUS determined by the low-power signal configuration information. The terminal assumes that the low-power signal configuration information includes multiple repeated transmissions. According to one implementation, if the first time unit is not indicated, or if it is indicated that the first time unit is not used, the terminal receiving the LP-WUS using an OFDM low-power receiver type receiver determines the time resource location of the LP-WUS based on the low-power signal configuration information and L2, and receives the target LP-WUS. The terminal assumes that the low-power signal configuration information includes a single transmission. It can be understood that if the first time unit information is configured, it indicates that the LP-WUS signal transmits both OOK symbols and an OFDM sequence. Therefore, the time resource length of the LP-WUS can be assumed to be L1. If it is not configured, it indicates that only the OFDM sequence is transmitted. Therefore, the time resource length of the LP-WUS can be assumed to be L2, a single transmission. According to one implementation, if the first time unit is not indicated, or if it is indicated that the first time unit is not used, the terminal can also determine single or multiple transmissions, and partial or full resources, based on other information. For example, the terminal can determine based on whether the target LP-WUS uses Manchester coding.

[0144] Optionally, the target indication information indicates the use of a first method or a second method to receive bit information. The first method determines the bit information carried by the target LP-WUS by determining the bit information carried by the target LP-WUS according to the complex signal sequence of the target LP-WUS. The second method determines the bit information carried by the target LP-WUS by determining the time unit of the carried bit according to the complex signal sequence of the target LP-WUS and the time position of the complex signal sequence, or the complex signal sequence of the target LP-WUS and the on-off keying signal of the target LP-WUS, or the bit reception method based on the first time unit. According to one implementation method, if the target indication information indicates the second method to determine the bit information carried by the target LP-WUS, the target LP-WUS includes multiple transmissions, or the first time resources indicated by the low-power signal configuration information are all used for the target LP-WUS. According to one implementation, if the target indication information indicates a first method for determining bit information carried by the target LP-WUS, the target LP-WUS includes a single transmission, and / or the first time resource portion indicated by the low-power signal configuration information is used for the target LP-WUS.

[0145] In one implementation, if the target indication information indicates a first method for determining the bit information carried by the target LP-WUS, the terminal may also determine whether it is a single or multiple transmissions based on other information, and use part or all of the resources determined by the low power configuration information. For example, the terminal may also need to determine whether the target LP-WUS uses Manchester encoding.

[0146] Optionally, the protocol stipulates that if no indication is given of which method to use for receiving bit information, it is received according to a predefined method, such as the first method. The terminal then determines, based on the predefined method for receiving bit information, that the target LP-WUS includes a single or multiple transmissions, and determines that part or all of the first time resource indicated by the low-power signal configuration information is used for receiving the target LP-WUS. It can be understood that if the second method is used to receive bit information, it indicates that the LP-WUS signal transmits both OOK symbols and OFDM sequences, and therefore it can be assumed that the time resource length of the LP-WUS is L1. If the first method is used to receive bit information, it indicates that only the OFDM sequence is transmitted, and therefore it can be assumed that the time resource length of the LP-WUS is L2, a single transmission.

[0147] Optionally, the target indication information is carried by at least one of the following: system information, RRC release information, and LP-WUS payload. Taking the LP-WUS payload carrying the target indication information as an example, the information carried by the OFDM sequence includes not only the wake-up information, but also the target indication information. For example, the wake-up information is 8 bits, and the target indication information is 1 bit. A terminal that uses a first type of low-power receiver to receive LP-WUS only receives 8-bit wake-up information and X1-bit CRC based on OOK symbols. A terminal that uses an OFDM low-power receiver type receiver to receive LP-WUS receives 8-bit wake-up information and 1-bit target indication information based on the OFDM series, or receives 8-bit wake-up information, 1-bit target indication information, and X2-bit CRC. Where X2 is equal to X1 or not equal.

[0148] In another implementation, a terminal based on OFDM sequence detection (a terminal with an OFDM low-power receiver) can determine a candidate time length for the target LP-WUS to be received as L2 (e.g., the number of OFDM symbols and OOK chips required) based on the LP-WUS payload, CRC, and the number of bits carried within a time unit. Furthermore, a candidate time length for the target LP-WUS to be received as L1 is determined based on the low-power signal configuration information. The terminal can attempt to receive the LP-WUS using one or both of these candidate time lengths. In this approach, the network node can control the length of the LP-WUS sent at different LP-WUS occasions based on actual packetization, reducing LP-WUS overhead. The terminal can determine the LP-WUS length based on its implementation. For example, the terminal can first attempt to receive the LP-WUS using L2. If reception fails, it can then attempt to receive the LP-WUS using L1. This provides a certain degree of flexibility for the terminal.

[0149] In another implementation, if the terminal based on OFDM sequence detection (a terminal with an OFDM low power receiver type) does not receive the target indication information, it can determine the length of the LP-WUS according to the first or second method.

[0150] In another implementation, if a terminal based on OFDM sequence detection (a terminal whose receiver type is an OFDM low-power receiver type) determines that the low-power signal configuration information is not configured to use coding, the terminal receives the target LP-WUS based on L2. The terminal assumes that the target LP-WUS includes only one transmission. According to one implementation, if the network node does not configure Manchester coding, or the network node indicates that Manchester coding is not to be used, the terminal receives the target LP-WUS based on L2. The terminal assumes that the LP-WUS includes only one transmission. According to one implementation, if the network node configures Manchester coding, or the network node does not indicate that Manchester coding is not to be used, the terminal receives the target LP-WUS based on L1. The terminal assumes that the LP-WUS includes multiple transmissions.

[0151] In another implementation, if a terminal based on OFDM sequence detection (a terminal whose receiver type is an OFDM low-power receiver type) determines that the target LP-WUS does not send OOK symbols, the terminal receives the target LP-WUS based on L2. The terminal assumes that the LP-WUS includes only one transmission. According to one implementation, if the network node is not configured to use OOK symbols, or the network node indicates not to use OOK symbols, the terminal receives the target LP-WUS based on L2. The terminal assumes that the LP-WUS includes only one transmission. According to one implementation, if the network node configures an OOK signal, or the network node does not indicate not to use an OOK signal, the terminal receives the target LP-WUS based on L1. The terminal assumes that the LP-WUS includes multiple transmissions.

[0152] Through the technical solutions provided in the embodiments of the present application, the first capability information of the paging terminal is carried to the target base station during CN or RAN paging, allowing the target base station to determine whether a compact / compressed / truncated WUS signal can be sent. This reduces the WUS transmission duration and saves WUS transmission overhead. In addition, the technical solutions provided in the embodiments of the present application can also determine the time length and number of repetitions for receiving different types of LP-WUS signals, thereby improving the resource efficiency of network nodes in sending LP-WUS signals and assisting terminals in reducing power consumption or improving LP-WUS detection performance.

[0153] The capability reporting method provided in the embodiment of the present application can be executed by a capability reporting device. In the embodiment of the present application, the capability reporting method performed by the capability reporting device is taken as an example to illustrate the capability reporting device provided in the embodiment of the present application.

[0154] Figure 6 A schematic diagram of the structure of the capability reporting device provided in an embodiment of the present application is shown as follows: Figure 6 As shown, the device mainly includes: a second acquisition module 601 and a first transmission module 602.

[0155] In an embodiment of the present application, the second acquisition module 601 is used to obtain the capability information of the terminal; the first transmission module 602 is used to report the capability information to the network side device; wherein the capability information includes at least one of the following: the low-power signal receiver type of the terminal; the modulation mode of the low-power signal supported by the terminal; whether the terminal supports the low-power wake-up signal LP-WUS based on the orthogonal frequency division multiplexing OFDM modulation mode.

[0156] In an optional implementation, the low-power signal receiver type includes at least one of the following:

[0157] On-off keying OOK low power receiver type;

[0158] OFDM low power receiver type.

[0159] In an optional implementation, the second acquisition module 601 is further used to acquire target information; the first transmission module 602 is further used to monitor the low-power wake-up signal LP-WUS according to the target information; wherein the target information includes one of the following: low-power signal configuration information; low-power signal configuration information and target indication information; the low-power signal configuration information includes the configuration information of the LP-WUS, and the target indication information is used to determine at least one of the following: the time domain length occupied by the target LP-WUS, the number of repeated transmissions of the target LP-WUS, the number of OFDM information bits contained in a code chip, the type indication of the LP-WUS, and whether the LP-WUS applies Manchester coding; wherein the target LP-WUS is the LP-WUS received by a terminal of an OFDM low-power receiver type.

[0160] In an optional implementation, the first transmission module 602 monitors the LP-WUS according to the target information, including: monitoring the LP-WUS according to at least one of the target information and the capability information of the terminal.

[0161] In an optional implementation, the first transmission module 602 monitors the LP-WUS according to the target information, including:

[0162] In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, the target LP-WUS is monitored according to the target information.

[0163] In an optional implementation, the first transmission module 602 monitors the LP-WUS according to the target information, including:

[0164] In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, a LP-WUS of a first length is detected, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

[0165] In an optional implementation, the first transmission module 602 monitors the LP-WUS according to the target information, including at least one of the following:

[0166] When the target indication information indicates that the target LP-WUS carries the OOK signal, determine that part or all of the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information;

[0167] When the target indication information indicates that the target LP-WUS does not carry an OOK signal, determine that all time domain resources in a target time domain are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information;

[0168] When the target indication information indicates that the target LP-WUS uses Manchester coding, determine that part or all of the time domain resources in the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information;

[0169] When the target indication information indicates that the target LP-WUS does not use Manchester coding, it is determined that all time domain resources in the target time domain are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information.

[0170] In an optional implementation, when it is determined that the target LP-WUS includes multiple repeated transmissions, the first transmission module 602 monitors one or more transmissions of the target LP-WUS.

[0171] The capability reporting device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be a device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0172] The capability reporting device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0173] Figure 7 A schematic diagram of the structure of a device for sending a wake-up signal provided in an embodiment of the present application is shown as follows: Figure 7 As shown, the device 700 mainly includes: a first acquisition module 701 and a sending module 702.

[0174] In an embodiment of the present application, a first acquisition module 701 is used to obtain capability information of the terminal, where the capability information includes at least one of the following: a low-power signal receiver type of the terminal; a modulation mode of a low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM modulation mode. A sending module 702 is used to send the LP-WUS based on the capability information.

[0175] In an optional implementation, the low-power signal receiver type includes at least one of the following:

[0176] On-off keying OOK low power receiver type;

[0177] OFDM low power receiver type.

[0178] In an optional implementation, the sending module 702 sends the LP-WUS based on the capability information, including:

[0179] In a case where it is determined based on the capability information that the terminal is a terminal including target capabilities, a target LP-WUS is sent, wherein the target capabilities include at least one of the following:

[0180] OFDM low power receiver type;

[0181] Support LP-WUS with OFDM modulation;

[0182] The target LP-WUS satisfies at least one of the following: an LP-WUS based on an OFDM modulation mode, an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

[0183] The wake-up signal sending device provided in the embodiment of the present application can achieve Figure 4 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0184] Figure 8A schematic diagram of the structure of the terminal capability acquisition device provided in the embodiment of the present application is shown as follows: Figure 8 As shown, the device 800 mainly includes: a third acquisition module 801 and a determination module 802.

[0185] In an embodiment of the present application, a third acquisition module 801 is used to obtain capability information of the terminal; a determination module 802 is used to determine the capability of the terminal based on the capability information; wherein the capability information includes at least one of the following: the low-power signal receiver type of the terminal; the waveform or modulation method of the low-power signal supported by the terminal; whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM waveform or modulation method.

[0186] In an optional implementation, if Figure 8 As shown, the apparatus may further include: a second transmission module 803, configured to send a paging message, wherein the paging message includes the capability information of the paged terminal.

[0187] The terminal capability acquisition device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0188] like Figure 9 As shown, an embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902, wherein the memory 902 stores a program or instruction that can be run on the processor 901. For example, when the communication device 900 is a terminal, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned capability reporting method embodiment, and can achieve the same technical effect. When the communication device 900 is a network-side device, the program or instruction is executed by the processor 901 to implement the various steps of the above-mentioned wake-up signal sending method embodiment, or to implement the various steps of the above-mentioned terminal capability acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0189] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 10 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0190] The terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009 and at least some of the components of the processor 1010.

[0191] Those skilled in the art will understand that the terminal 1000 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 1010 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 10 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0192] It should be understood that in an embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processing unit 10041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0193] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1001 may transmit the data to the processor 1010 for processing. Furthermore, the RF unit 1001 may send uplink data to the network-side device. Typically, the RF unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0194] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1009 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0195] Processor 1010 may include one or more processing units. Optionally, processor 1010 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1010.

[0196] The processor 1010 is configured to obtain capability information of the terminal;

[0197] The radio frequency unit 1001 is configured to report the capability information to the network side device;

[0198] The capability information includes at least one of the following:

[0199] The low-power signal receiver type of the terminal;

[0200] A modulation mode of a low-power signal supported by the terminal;

[0201] Whether the terminal supports a low power consumption wake-up signal LP-WUS based on an orthogonal frequency division multiplexing (OFDM) modulation scheme.

[0202] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiment 300 and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0203] The embodiment of the present application further provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 or Figure 5 The network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation method of the above method embodiment are applicable to the network side device embodiment and can achieve the same technical effect.

[0204] Specifically, the embodiment of the present application also provides a network side device. Figure 11 As shown, network-side device 1100 includes an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. Antenna 1101 is connected to radio frequency device 1102. In the uplink direction, radio frequency device 1102 receives information via antenna 1101 and sends the received information to baseband device 1103 for processing. In the downlink direction, baseband device 1103 processes the information to be transmitted and sends it to radio frequency device 1102. Radio frequency device 1102 processes the received information and then sends it through antenna 1101.

[0205] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1103 , which includes a baseband processor.

[0206] The baseband device 1103 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 11 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1105 via a bus interface to call the program in the memory 1105 to execute the network device operations shown in the above method embodiment.

[0207] The network side device may further include a network interface 1106 , which is, for example, a Common Public Radio Interface (CPRI).

[0208] Specifically, the network side device 1100 of the embodiment of the present application further includes: instructions or programs stored in the memory 1105 and executable on the processor 1104, and the processor 1104 calls the instructions or programs in the memory 1105 to execute. Figure 7 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0209] Specifically, the embodiment of the present application also provides a network side device. Figure 12 As shown, the network side device 1200 includes: a processor 1201, a network interface 1202 and a memory 1203. The network interface 1202 is, for example, a common public radio interface (CPRI).

[0210] Specifically, the network side device 1200 of the embodiment of the present application further includes: instructions or programs stored in the memory 1203 and executable on the processor 1201, and the processor 1201 calls the instructions or programs in the memory 1203 to execute. Figure 8 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0211] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by the processor, the various processes of the above-mentioned capability reporting method embodiment, or the various processes of the above-mentioned wake-up signal sending method embodiment, or the various processes of the above-mentioned terminal capability acquisition method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0212] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0213] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned capability reporting method embodiment, or to implement the various processes of the above-mentioned wake-up signal sending method embodiment, or to implement the various processes of the above-mentioned terminal capability acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0214] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0215] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned capability reporting method embodiment, or to implement the various processes of the above-mentioned wake-up signal sending method embodiment, or to implement the various processes of the above-mentioned terminal capability acquisition method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0216] An embodiment of the present application also provides a wireless communication system, including: a terminal, an access network device and a core network device, wherein the terminal can be used to execute the various processes of the embodiment of the capability reporting method as described above, the access network device can be used to execute the various processes of the embodiment of the wake-up signal sending method as described above, and the network side device can be used to execute the various processes of the embodiment of the terminal capability acquisition method as described above.

[0217] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0218] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0219] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for sending a wake-up signal, characterized in that: include: The access network device obtains capability information of the terminal; the capability information includes at least one of the following: a low-power signal receiver type of the terminal; a modulation mode of the low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM modulation mode. The access network device sends the LP-WUS based on the capability information.

2. The method according to claim 1, characterized in that The access network device acquires the terminal capability information including the following: The access network device receives capability information from the terminal; The access network device receives the capability information of the terminal from other access network devices; The access network device receives a target message from a core network device, where the target message is used to notify capability information of the paged terminal.

3. The method according to claim 1 or 2, characterized in that The low-power signal receiver type includes at least one of the following: On-off keying OOK low power receiver type; OFDM low power receiver type.

4. The method according to any one of claims 1 to 3, characterized in that The access network device sends the LP-WUS based on the capability information, including: In a case where it is determined based on the capability information that the terminal is a terminal including target capabilities, the access network device sends a target LP-WUS; wherein the target capabilities include at least one of the following: OFDM low power receiver type; Support LP-WUS with OFDM modulation; The target LP-WUS satisfies at least one of the following: an LP-WUS based on an OFDM modulation mode, an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

5. A capability reporting method, characterized in that: include: The terminal reports capability information to the network device, where the capability information includes at least one of the following: The low-power signal receiver type of the terminal; A modulation mode of a low-power signal supported by the terminal; Whether the terminal supports a low power consumption wake-up signal LP-WUS based on an orthogonal frequency division multiplexing (OFDM) modulation scheme.

6. The method according to claim 5, characterized in that The low-power signal receiver type includes at least one of the following: On-off keying OOK low power receiver type; OFDM low power receiver type.

7. The method according to claim 5 or 6, characterized in that The method further comprises: The terminal obtains target information; The terminal monitors a low power consumption wake-up signal LP-WUS according to the target information; The target information includes one of the following: Low power signal configuration information; Low-power signal configuration information and target indication information; The low-power signal configuration information includes configuration information of the LP-WUS, and the target indication information is used to determine at least one of the following: the time domain length occupied by the target LP-WUS, the number of repeated transmissions of the target LP-WUS, the number of OFDM information bits contained in a code chip, the type indication of the LP-WUS, and whether the LP-WUS applies Manchester coding; wherein the target LP-WUS is an LP-WUS received by a terminal of an OFDM low-power receiver type.

8. The method according to claim 7, characterized in that The terminal monitors the LP-WUS according to the target information, including: The terminal monitors the LP-WUS according to at least one of the target information and the capability information of the terminal.

9. The method according to claim 7 or 8, characterized in that The terminal monitoring the LP-WUS according to the target information includes: In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, the terminal monitors the target LP-WUS according to the target information.

10. The method according to any one of claims 7 to 9, characterized in that The terminal monitoring the LP-WUS according to the target information includes: In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, the terminal detects an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

11. The method according to any one of claims 7 to 10, characterized in that The terminal monitors the low power consumption wake-up signal LP-WUS according to the target information, including at least one of the following: When the target indication information indicates that the target LP-WUS carries the OOK signal, the terminal determines that part or all of the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; When the target indication information indicates that the target LP-WUS does not carry an OOK signal, the terminal determines that all time domain resources in a target time domain are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; When the target indication information indicates that the target LP-WUS uses Manchester coding, the terminal determines that part or all of the time domain resources in the target time domain resources are used for the target LP-WUS, where the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information; When the target indication information indicates that the target LP-WUS does not use Manchester coding, the terminal determines that all time domain resources in the target time domain are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information.

12. The method according to claim 11, characterized in that In a case where it is determined that the target LP-WUS includes multiple repeated transmissions, the terminal monitors one or more transmissions of the target LP-WUS.

13. A method for acquiring terminal capabilities, characterized in that: include: The core network device obtains capability information of the terminal, where the capability information includes at least one of the following: The low-power signal receiver type of the terminal; the waveform or modulation mode of the low-power signal supported by the terminal; whether the terminal supports the low-power wake-up signal LP-WUS based on the OFDM waveform or modulation mode.

14. The method according to claim 13, characterized in that The method further comprises: The core network device sends a paging message, wherein the paging message includes the capability information of the paged terminal.

15. A device for sending a wake-up signal, characterized in that: include: A first acquisition module is configured to acquire capability information of a terminal, wherein the capability information includes at least one of the following: a low-power signal receiver type of the terminal; a modulation mode of a low-power signal supported by the terminal; and whether the terminal supports a low-power wake-up signal LP-WUS based on an OFDM modulation mode. The sending module is configured to send the LP-WUS based on the capability information.

16. The device according to claim 15, characterized in that The first acquiring module acquires the capability information of the terminal including the following: receiving capability information from the terminal; receiving capability information of the terminal from other access network devices; A target message is received from a core network device, where the target message is used to notify capability information of the paged terminal.

17. The device according to claim 15 or 16, characterized in that The sending module sends the LP-WUS based on the capability information, including: In a case where it is determined based on the capability information that the terminal is a terminal including target capabilities, a target LP-WUS is sent, wherein the target capabilities include at least one of the following: OFDM low power receiver type; Support LP-WUS with OFDM modulation; The target LP-WUS satisfies at least one of the following: an LP-WUS based on an OFDM modulation mode, an LP-WUS of a first length, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

18. A capability reporting device, characterized in that: include: A second acquisition module is used to obtain capability information of the terminal; A first transmission module, configured to report the capability information to a network-side device; The capability information includes at least one of the following: The low-power signal receiver type of the terminal; A modulation mode of a low-power signal supported by the terminal; Whether the terminal supports a low power consumption wake-up signal LP-WUS based on an orthogonal frequency division multiplexing (OFDM) modulation scheme.

19. The device according to claim 18, characterized in that The second acquisition module is further used to acquire target information; The first transmission module is further configured to monitor a low power wake-up signal LP-WUS according to the target information; The target information includes one of the following: Low power signal configuration information; Low-power signal configuration information and target indication information; The low-power signal configuration information includes the configuration information of the LP-WUS, and the target indication information is used to determine at least one of the following: the time domain length occupied by the target LP-WUS, the number of repeated transmissions of the target LP-WUS, the number of OFDM information bits contained in a code chip, the type indication of the LP-WUS, and whether the LP-WUS applies Manchester coding; wherein the target LP-WUS is the LP-WUS received by a terminal of an OFDM low-power receiver type.

20. The device according to claim 19, characterized in that The first transmission module monitors the LP-WUS according to the target information, including: monitoring the LP-WUS according to at least one of the target information and the capability information of the terminal.

21. The device according to claim 19 or 20, characterized in that The first transmission module monitors the LP-WUS according to the target information, including: In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, the target LP-WUS is monitored according to the target information.

22. The device according to any one of claims 19 to 21, characterized in that The first transmission module monitors the LP-WUS according to the target information, including: In a case where the low power consumption receiver type of the terminal is an OFDM low power consumption receiver type, a LP-WUS of a first length is detected, where the first length includes a length within a predetermined range or the first length includes at least one candidate length.

23. The method according to any one of claims 19 to 22, characterized in that The first transmission module monitors the LP-WUS according to the target information, including at least one of the following: When the target indication information indicates that the target LP-WUS carries the OOK signal, determine that part or all of the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; When the target indication information indicates that the target LP-WUS does not carry an OOK signal, determine that all time domain resources in a target time domain are used for the target LP-WUS, wherein the target time domain resources are time domain resources occupied by the LP-WUS determined according to the low-power signal configuration information; When the target indication information indicates that the target LP-WUS uses Manchester coding, determine that part or all of the time domain resources in the target time domain resources are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information; When the target indication information indicates that the target LP-WUS does not use Manchester coding, it is determined that all time domain resources in the target time domain are used for the target LP-WUS, wherein the target time domain resources are the time domain resources occupied by the LP-WUS determined according to the low power signal configuration information.

24. A device for acquiring terminal capabilities, characterized in that: include: A third acquisition module is used to obtain capability information of the terminal; a determination module, configured to determine the capability of the terminal based on the capability information; The capability information includes at least one of the following: The low-power signal receiver type of the terminal; the waveform or modulation mode of the low-power signal supported by the terminal; whether the terminal supports the low-power wake-up signal LP-WUS based on the OFDM waveform or modulation mode.

25. The device according to claim 24, characterized in that Also includes: The second transmission module is configured to send a paging message, wherein the paging message includes the capability information of the paged terminal.

26. A terminal, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the capability reporting method according to any one of claims 5 to 12 are implemented.

27. A network side device, characterized in that: It includes a processor and a memory, the memory storing a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the method for sending a wake-up signal as described in any one of claims 1 to 4, or implements the steps of the method for acquiring terminal capabilities as described in any one of claims 13 to 14.

28. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the method for sending a wake-up signal as described in any one of claims 1 to 4, or implements the steps of the capability reporting method as described in any one of claims 5 to 12, or implements the steps of the method for acquiring terminal capabilities as described in any one of claims 13 to 14.

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