Wake-up signal sending method and apparatus, wake-up signal receiving method and apparatus, and device and storage medium

Abstract

A wake-up signal sending method and apparatus, a wake-up signal receiving method and apparatus, and a device and a storage medium, which belong to the technical field of mobile communications. The method is executed by a network device, and comprises: sending wake-up signals (801), wherein the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency-domain resources and / or time-domain resources. The solution supports the sending of wake-up signals for a plurality of terminals or a plurality of terminal sets.

Description

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

[0001] The present application relates to the field of mobile communication technology, and in particular to a wake-up signal sending method, receiving method, device, equipment and storage medium. Background Art

[0002] With the continuous development of mobile communication technology, the types of terminals supported by mobile communication systems are becoming more and more diverse, and some types of terminals have very high requirements for energy saving.

[0003] In related technologies, a terminal can remain in an energy-saving state when no communication is required, and a network device can wake up the terminal through a wake-up signal.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a wake-up signal sending method, receiving method, apparatus, device, and storage medium. The technical solution is as follows:

[0006] In one aspect, an embodiment of the present application provides a method for sending a wake-up signal, the method being performed by a network device, the method comprising:

[0007] Sending a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

[0008] In one aspect, an embodiment of the present application provides a communication method, which is executed by a terminal and includes:

[0009] Receiving a wake-up signal of the terminal on frequency domain resources and / or time domain resources corresponding to the terminal;

[0010] The wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

[0011] On the other hand, an embodiment of the present application provides a wake-up signal sending device, the device comprising:

[0012] The sending module is used to send a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

[0013] On the other hand, an embodiment of the present application provides a wake-up signal receiving device, the device comprising:

[0014] A receiving module, configured to receive a wake-up signal from the terminal on frequency domain resources and / or time domain resources corresponding to the terminal;

[0015] The wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

[0016] On the other hand, an embodiment of the present application provides a terminal, comprising a processor, a memory, and a transceiver;

[0017] The memory stores a computer program, and the processor executes the computer program to enable the terminal to implement the above-mentioned wake-up signal receiving method.

[0018] On the other hand, an embodiment of the present application provides a network device, the network device including a processor, a memory, and a transceiver;

[0019] The memory stores a computer program, and the processor executes the computer program to enable the network device to implement the above-mentioned wake-up signal sending method.

[0020] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the above-mentioned wake-up signal sending method or wake-up signal receiving method.

[0021] On the other hand, the present application also provides a chip, which is used to run in a communication device so that the communication device executes the above-mentioned wake-up signal sending method or wake-up signal receiving method.

[0022] In another aspect, the present application provides a computer program product, comprising computer instructions stored in a computer-readable storage medium. A processor of a communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the communication device to perform the above-described wake-up signal sending method or wake-up signal receiving method.

[0023] On the other hand, the present application provides a computer program, which is executed by a processor of a communication device to implement the above-mentioned wake-up signal sending method or wake-up signal receiving method.

[0024] An embodiment of the present application provides a solution for sending and receiving wake-up signals. When a network device sends a wake-up signal to a terminal, the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources. For low-power wake-up signals and other wake-up signals using MC-ASK or MC-FSK waveforms, such wake-up signals are not suitable for carrying a large number of bits. However, through the solution shown in the embodiment of the present application, the wake-up signals corresponding to multiple terminals or multiple terminal sets can be carried by different frequency domain resources and / or time domain resources, respectively, thereby supporting the sending of wake-up signals to multiple terminals or terminal sets. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0026] FIG2 is a schematic diagram of a PEI indicator involved in this application;

[0027] FIG3 is a block diagram of a receiver system based on zero-power wake-up involved in this application;

[0028] FIG4 is a schematic diagram of a LP-WUS production process involved in this application;

[0029] FIG5 is a schematic diagram of another LP-WUS production process involved in this application;

[0030] FIG6 is a schematic diagram of another LP-WUS production process involved in this application;

[0031] FIG7 is a schematic diagram of another LP-WUS production process involved in this application;

[0032] FIG8 is a flowchart of a method for sending a wake-up signal according to an embodiment of the present application;

[0033] FIG9 is a flowchart of a method for receiving a wake-up signal provided by an embodiment of the present application;

[0034] FIG10 is a flowchart of a method for sending and receiving a wake-up signal according to an embodiment of the present application;

[0035] FIG11 is a schematic diagram of a wake-up information carrier involved in this application;

[0036] FIG12 is a schematic diagram of another wake-up information carrier involved in this application;

[0037] FIG13 is a schematic diagram of a subcarrier group involved in the present application;

[0038] FIG14 is a schematic diagram of a signal generation process involved in the present application;

[0039] FIG15 is a schematic diagram of a terminal group division involved in the present application;

[0040] FIG16 is a schematic diagram of another terminal group division involved in the present application;

[0041] FIG17 is a schematic diagram of a time domain resource carrying a wake-up signal involved in the present application;

[0042] FIG18 is a block diagram of a wake-up signal sending device provided by one embodiment of the present application;

[0043] FIG19 is a block diagram of a wake-up signal receiving device provided by one embodiment of the present application;

[0044] FIG20 is a schematic structural diagram of a communication device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application are further described in detail below with reference to the accompanying drawings.

[0046] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0047] Fig. 1 shows a schematic diagram of a communication system involved in an exemplary embodiment of the present application. The communication system includes a network device 110 and a terminal 120, and optionally, may also include a terminal 130, which is not limited in the present application.

[0048] The network device 110 in the present application provides wireless communication functions, and the network device 110 includes but is not limited to: Evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home Evolved Node B, or Home Node B, HNB), Baseband Unit (BBU), Access Point (AP) in Wireless Fidelity (Wi-Fi) system, Wireless Relay Node, Wireless Backhaul Node, Transmission Point (TP) or Transmission and Reception Point (TRP), etc., and can also be the Next Generation Node B (NGNB) in the 5th Generation (5G) mobile communication system. The term "gNB" refers to a base station (B, gNB) or a transmission point (TRP or TP), or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), or a base station in a Beyond Fifth Generation (B5G) or a 6th Generation (6G) mobile communication system, or a core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, or a serving cell, primary cell (PCell), primary secondary cell (PSCell), special cell (SpCell), secondary cell (SCell), or neighboring cell of a terminal.

[0049] The terminal 120 and / or terminal 130 in this application are also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, and user device. The terminals include, but are not limited to, handheld devices, wearable devices, vehicle-mounted devices, and Internet of Things devices, such as mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MIDs), augmented reality (AR) terminals, virtual reality (VR) terminals, and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, wireless terminals in remote medical surgery, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops (WLANs), and wireless terminals in industrial control. Loop (WLL) stations, personal digital assistants (PDA), TV set-top boxes (STB), customer premises equipment (CPE), etc.

[0050] The network device 110 and the terminal 120 communicate with each other via some air interface technology, such as a Uu interface.

[0051] Exemplarily, there are two communication scenarios between the network device 110 and the terminal 120: an uplink communication scenario and a downlink communication scenario. Uplink communication refers to sending signals to the network device 110; downlink communication refers to sending signals to the terminal 120.

[0052] The terminal 120 and the terminal 130 communicate with each other via some air interface technology, such as a PC5 interface.

[0053] In some embodiments, there are two communication scenarios between terminal 120 and terminal 130: a first sideline communication scenario and a second sideline communication scenario. The first sideline communication refers to sending a signal to terminal 130; the second sideline communication refers to sending a signal to terminal 120.

[0054] Terminal 120 and terminal 130 are both within the network coverage and located in the same cell, or both within the network coverage but located in different cells, or terminal 120 is within the network coverage but terminal 130 is outside the network coverage.

[0055] The technical solutions provided in the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G mobile communication system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum) system. Unlicensed spectrum, NR-U) system, terrestrial communication network (Terrestrial Networks, TN) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, can also be applied to the subsequent evolution system of the 5G NR system, and can also be applied to B5G, 6G and subsequent evolution systems. In some embodiments of the present application, "NR" may also be referred to as a 5G NR system or a 5G system. Among them, the 5G mobile communication system may include non-standalone networking (NSA) and / or standalone networking (SA).

[0056] The technical solutions provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, the IoT network can include, for example, the Internet of Vehicles. Among them, the communication mode in the Internet of Vehicles system is collectively referred to as vehicle to other devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.

[0057] 1) 5G

[0058] 5G technology adopts the New Radio (NR) design, based on LTE's OFDM+MIMO underlying air interface technology framework. Compared with LTE, it has made a number of technical enhancements and improvements in system solution design, including support for higher frequency band ranges and larger carrier bandwidths, flexible frame structures, diversified parameter sets, optimized reference signal design, new coding, symbol-level resource scheduling, MIMO enhancement, latency reduction, coverage enhancement, mobility enhancement, terminal energy saving, signaling design optimization, a new network architecture, enhanced service QoS (Quality of Service) guarantees, network slicing, vehicle to everything (V2X), industrial Internet of Things (IIoT), unlicensed spectrum design (New Radio-unlicensed, NR-U), and good support for multiple vertical industries.

[0059] Mobile Internet and Mobile Internet of Things (IoT) are the two main drivers of 5G development and offer broad prospects for the future of mobile communications. 5G defines three major application scenarios: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). eMBB is primarily targeted at the mobile Internet, while URLLC and mMTC are targeted at the mobile IoT. The mobile Internet will build a comprehensive, user-centric information ecosystem. In recent years, user-centric needs such as ultra-high-definition video, virtual reality (VR), augmented reality (AR), distance education, remote work, telemedicine, and wireless home entertainment have become increasingly prevalent. These burgeoning new service demands inevitably place higher demands on mobile communications transmission bandwidth and data rates. At the same time, vertical industries such as the Mobile Internet of Things, Industrial Internet, Internet of Vehicles, smart grids, and smart cities are rapidly transforming towards informatization and digitalization. Beyond smartphones, mobile terminals are becoming increasingly diverse, including wearable devices, cameras, drones, robots, vehicle-mounted and ship-mounted terminal modules, and customized industry terminals.

[0060] 2) Terminal energy-saving technology

[0061] The 5G NR standard guarantees extremely high network system data rates to meet the ITU's IMT-2020 minimum 5G data throughput performance requirements. At the same time, terminal-side energy consumption is also a key performance requirement of IMT-2020. Starting with Release 16, the NR standard has dedicated a project to optimize terminal energy conservation. The Release 16 standard introduced energy conservation signals to further save energy for UEs in the RRC_CONNECTED state. These energy conservation signals are used in conjunction with the DRX mechanism, with the terminal receiving an indication of an energy conservation wake-up signal before the DRX ON duration. The Release 17 standard optimizes energy conservation for UEs in the idle state receiving paging messages by introducing similar energy conservation signals. A power conservation signal used when the terminal is in the RRC IDLE and RRC INACTIVE states is called a Paging Early Indication (PEI). This signal is used to indicate whether the UE should receive a paging PDCCH before the target PO arrives. It is used to indicate whether the terminal needs to receive a paging message at the paging occasion (PO) before the terminal's paging occasion (PO) arrives. When a terminal is not being paged, PEI can avoid unnecessary paging reception, reducing terminal power consumption. PEI is carried on the PDCCH. To reduce PEI overhead, a PEI can indicate whether one or more terminal subgroups in each of one or more POs need to receive paging. A terminal subgroup is a further grouping of multiple terminals corresponding to a PO calculated using a terminal identifier (UE_ID).

[0062] Please refer to Figure 2, which shows a schematic diagram of a PEI indication involved in this application. As shown in Figure 2, one PEI is associated with four POs. The terminals corresponding to each PO are further divided into K subgroups. Therefore, the number of indication bits carried by a PEI is 4*K, where each bit indicates whether a terminal subgroup in a PO needs to receive paging at that PO.

[0063] The R17 standard also introduces an enhanced solution for search space set group switching, including a PDCCH skipping solution that skips PDCCH detection when necessary to save power.

[0064] 3) To further save power for UEs, the 3GPP R18 standard considers introducing a wake-up receiver (WUR) to receive a low-power wake-up signal (LP-WUS). This wake-up receiver features extremely low cost, low complexity, and extremely low power consumption. It primarily receives the wake-up signal through envelope detection. Therefore, the LP-WUS received by the wake-up receiver differs from the modulation scheme and waveform of the PDCCH-based signal defined in the existing 3GPP R16 and R17 standards. The wake-up signal primarily consists of an envelope signal that performs ASK modulation on the carrier signal. The demodulation of the envelope signal is also primarily based on the energy provided by the wireless RF signal to drive a low-power circuit, making it passive. The wake-up receiver can also be powered by the terminal. Regardless of the power supply method, this receiver significantly reduces power consumption compared to traditional UE receivers. The wake-up receiver can be integrated with the UE as an additional module for the UE receiver, or it can function as a standalone wake-up function module for the UE.

[0065] The block diagram of the receiver system based on zero-power wake-up is shown in Figure 3. The wake-up receiver receives the wake-up signal and can instruct the UE to turn on the main receiver if the UE needs to turn on the receiver. Otherwise, the UE's main receiver can be turned off.

[0066] 4) Wake-up signal generation method based on wake-up receiver

[0067] In order to save power when waking up the receiver, the wake-up receiver needs to have a lower complexity, so the waveform of the wake-up signal adopts a waveform such as ASK and FSK that can be detected by a receiver with low complexity. Among them, the ASK waveform usually uses an OOK signal. At the same time, in the existing OFDM system, in order to use the existing OFDM transmitter to generate the wake-up signal and reduce additional hardware overhead, the OOK signal is generated through multi-carrier (MC), so it is called MC-OOK signal. The generation of MC-OOK signal can use existing multi-carrier modulation such as OFDM modulation to generate OOK signal, which can maintain good compatibility with the existing OFDM system and reduce the complexity of the transmitter introduced to implement WUR signal.

[0068] The waveform of the WUS signal discussed in the 3GPP R18 standard can be an MC-ASK waveform, where K is the number of IDFT points and N is the number of subcarriers used to transmit the WUS signal. For example, the MC-ASK waveform is generated in the following ways:

[0069] OOK-1: Each OFDM symbol carries one bit. The subcarrier carrying the LP-WUS is modulated and IDFT-transformed, resulting in an output signal of OOK = 1. The subcarrier carrying the LP-WUS is zero-power, resulting in an output signal of OOK = 0. Figure 4 shows a schematic diagram of the LP-WUS generation process.

[0070] OOK-2: Each OFDM symbol carries M bits in the frequency domain. The N subcarriers carrying the LP-WUS are divided into M segments, each carrying one bit of information. Within each segment, the output signal corresponding to all subcarriers being modulated is OOK = 1, while the output signal corresponding to all subcarriers being zero-power is OOK = 0. Using M = 2 as an example, Figure 5 shows a schematic diagram of the LP-WUS generation process.

[0071] OOK-3: Each OFDM symbol carries one bit, and the N subcarriers carrying the LP-WUS are divided into M segments. Within the M segments, when one subcarrier in each segment is modulated and the other subcarriers are at zero power, the corresponding output signal is OOK = 1. When all subcarriers in all segments are at zero power, the corresponding output signal is OOK = 0. Figure 6 shows the schematic diagram of the LP-WUS generation process.

[0072] OOK-4: Each OFDM symbol carries M bits in the time domain. The N subcarriers carrying the LP-WUS are generated through a DFT, with S sampling points representing the M bits. These S sampling points are then transformed through the DFT to form S subcarriers. These S subcarriers undergo truncation and other processing to form N subcarriers, which are then transformed through the IDFT to generate the OOK signal. Figure 7 shows a schematic diagram of the LP-WUS generation process, using M = 4 as an example.

[0073] In addition to the MC-ASK waveform, LP-WUS can also use the MC-FSK waveform, which mainly includes the following methods:

[0074] FSK-1: The N subcarriers carrying LP-WUS are divided into M pairs of segments. In each OFDM symbol, one segment in each pair is modulated and the other segment is zero power.

[0075] FSK-2: The N subcarriers carrying LP-WUS are divided into 2 M segments, in each OFDM symbol, 2 M One of the segments is modulated and the other segments are at zero power.

[0076] For the wake-up signal introduced in R18, since it adopts a new signal waveform and generation method, how to carry the wake-up information is a problem that must be solved.

[0077] Please refer to FIG8 , which shows a flowchart of a method for sending a wake-up signal according to an embodiment of the present application. The method may be performed by a network device, wherein the network device may be the network device 110 in the network architecture shown in FIG1 . The method may include the following steps:

[0078] Step 801 : Send a wake-up signal; the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

[0079] In an embodiment of the present application, when a network device sends a wake-up signal to a terminal, the wake-up signals corresponding to multiple terminals or multiple terminal sets can be carried by different frequency domain resources and / or time domain resources.

[0080] For example, for multiple terminals, the wake-up signals of some of the multiple terminals can be carried by a certain frequency domain resource and / or time domain resource, and the wake-up signals of another part of the multiple terminals can be carried by another frequency domain resource and / or time domain resource; that is, the frequency domain resources and / or time domain resources carrying the wake-up signals of the multiple terminals are not exactly the same, and the frequency domain resources and / or time domain resources where the wake-up signals of at least two terminals are located are different.

[0081] Alternatively, for multiple terminals, the wake-up signals of the multiple terminals are respectively carried by different frequency domain resources and / or time domain resources; in other words, the frequency domain resources and / or time domain resources where the wake-up signals of the multiple terminals are located are different.

[0082] For another example, for multiple terminal sets, the wake-up signals of some terminal sets in the multiple terminal sets can be carried by a certain frequency domain resource and / or time domain resource, and the wake-up signals of another part of the terminal sets in the multiple terminal sets can be carried by another frequency domain resource and / or time domain resource; that is, the frequency domain resources and / or time domain resources carrying the wake-up signals of the multiple terminal sets are not exactly the same, and the frequency domain resources and / or time domain resources where the wake-up signals of at least two terminal sets are located are different.

[0083] Alternatively, for multiple terminal sets, the wake-up signals of each of the multiple terminal sets are carried by different frequency domain resources and / or time domain resources; in other words, the frequency domain resources and / or time domain resources where the wake-up signals of the multiple terminal sets are located are different.

[0084] In some embodiments, the wake-up signal may be received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

[0085] Among them, the above-mentioned terminal may include a first receiver and a second receiver, the second receiver has more functions than the first receiver, and accordingly, the power consumption of the second receiver is also higher than that of the first receiver. For example, the functions of the first receiver may include receiving a wake-up signal and waking up the second receiver. Optionally, the first receiver may also have some other functions, such as certain measurement and / or synchronization functions, and the second receiver may have measurement, synchronization, paging signal reception, data reception and other functions.

[0086] Optionally, the first receiver may be a wake-up receiver WUR, and accordingly, the above-mentioned wake-up signal may be a low-power wake-up signal LP-WUS, and accordingly, the structure of the terminal may be as shown in FIG3 .

[0087] To sum up, according to the scheme shown in the embodiment of the present application, when the network device sends a wake-up signal to the terminal, the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources. For low-power wake-up signals and other wake-up signals through MC-ASK or MC-FSK waveforms, such wake-up signals are not suitable for carrying a large number of bits. However, according to the scheme shown in the embodiment of the present application, the wake-up signals corresponding to multiple terminals or multiple terminal sets can be carried by different frequency domain resources and / or time domain resources respectively, thereby supporting the sending of wake-up signals to multiple terminals or terminal sets.

[0088] Please refer to FIG9 , which shows a flowchart of a wake-up signal receiving method provided by one embodiment of the present application. The method may be performed by a terminal, wherein the terminal may be the terminal 120 or the terminal 130 in the network architecture shown in FIG1 . The method may include the following steps:

[0089] Step 901: Receive a wake-up signal of a terminal on the frequency domain resources and / or time domain resources corresponding to the terminal; the wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

[0090] In an embodiment of the present application, the wake-up signals corresponding to multiple terminals or multiple terminal sets can be carried by different frequency domain resources and / or time domain resources respectively. Accordingly, when the terminal receives the wake-up signal, it can receive it on the corresponding frequency domain resources and / or time domain resources.

[0091] In some embodiments, the frequency domain resources and / or time domain resources corresponding to the above-mentioned terminal can be configured / indicated to the terminal by the network device in a semi-static or dynamic manner. For example, the network device can be configured / indicated to the terminal through RRC, MAC CE and other signaling.

[0092] To sum up, according to the scheme shown in the embodiment of the present application, when the network device sends a wake-up signal to the terminal, the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources. For low-power wake-up signals and other wake-up signals through MC-ASK or MC-FSK waveforms, such wake-up signals are not suitable for carrying a large number of bits. However, according to the scheme shown in the embodiment of the present application, the wake-up signals corresponding to multiple terminals or multiple terminal sets can be carried by different frequency domain resources and / or time domain resources respectively, thereby supporting the sending of wake-up signals to multiple terminals or terminal sets.

[0093] In addition, when receiving the wake-up signal, the terminal can receive it on the corresponding frequency domain resources and / or time domain resources, without having to monitor the wake-up signal on all frequency domain resources and / or time domain resources, thereby further improving the energy-saving performance of the terminal.

[0094] Please refer to Figure 10, which shows a flowchart of a method for sending and receiving a wake-up signal provided by an embodiment of the present application. The method can be interactively performed by a terminal and a network device, wherein the terminal can be the terminal 120 or the terminal 130 in the network architecture shown in Figure 1, and the network device can be the network device 110 in the network architecture shown in Figure 1. The method may include the following steps:

[0095] Step 1001: A network device sends a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

[0096] In some embodiments, the wake-up signal is received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

[0097] In some embodiments, a terminal set includes:

[0098] a terminal in a terminal group; or,

[0099] A terminal corresponding to a paging occasion PO; or,

[0100] The terminal corresponding to a PO group.

[0101] In the embodiment of the present application, the terminal set may be divided according to the terminal group, that is, the terminals in each terminal group are divided into one terminal set.

[0102] Alternatively, the terminal sets may be divided according to the paging occasions PO, that is, the terminals corresponding to each PO are divided into one terminal set. Optionally, the terminals in one PO may be divided into multiple terminal groups.

[0103] Alternatively, the terminal sets may be divided according to PO groups, that is, the terminals corresponding to each PO group are divided into one terminal set.

[0104] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths, different subcarrier groups or different subcarrier segments.

[0105] Among them, the resources used to carry the wake-up signal can be divided into different frequency domain bandwidths, different subcarrier groups or different subcarrier segments in the frequency domain. Each frequency domain bandwidth / subcarrier group / subcarrier segment can carry the wake-up signal of one or more terminals, or each frequency domain bandwidth / subcarrier group / subcarrier segment can carry the wake-up signal of one or more terminal sets. Among them, different frequency domain bandwidths or subcarrier groups can carry the wake-up signals of different terminals / terminal sets. Optionally, a frequency domain bandwidth or a subcarrier group can be divided into multiple subcarrier segments.

[0106] Optionally, the wake-up signals carried on different frequency domain bandwidths / subcarrier groups / subcarrier segments are used to indicate the wake-up information of different terminals / terminal groups / POs / PO groups.

[0107] In the present application, the network device can send a wake-up signal on multiple frequency domain bandwidths / subcarrier groups / subcarrier segments. This wake-up signal can be regarded as one wake-up signal transmitted using multiple frequency domain bandwidths / subcarrier groups / subcarrier segments, or it can be multiple different wake-up signals transmitted using different frequency domain bandwidths or subcarrier groups.

[0108] In some embodiments, when the wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, multiple frequency domain bandwidths or subcarrier groups in the frequency domain are used to carry different wake-up signals; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

[0109] Among them, a part of resources can be set in the frequency domain as resources for carrying wake-up signals. On this part of resources, there can be multiple frequency domain bandwidths or subcarrier groups. Different terminals or terminal sets can have different wake-up information. These different wake-up information can be carried by wake-up signals on different frequency domain bandwidths or subcarrier groups. In other words, in the above-mentioned multiple frequency domain bandwidths or subcarrier groups, the wake-up signals carried by each frequency domain bandwidth or subcarrier group are different or not completely the same. Accordingly, the terminals / terminal groups corresponding to the wake-up information carried by each of the multiple wake-up signals are different or not completely the same.

[0110] Taking the wake-up signal generation method OOK-1 as an example, there are multiple frequency domain bandwidths or subcarrier groups in the frequency domain for carrying different wake-up signals. Different wake-up signals can carry wake-up information for different terminals or terminal groups. A schematic diagram of wake-up information carrying can be shown in Figure 11.

[0111] In some embodiments, when the wake-up signals of at least two terminals or at least two terminal sets are carried by different subcarrier segments, M subcarrier segments in the frequency domain are used to carry the wake-up signals, and M subcarrier segments are used to carry M bits; the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets; M is an integer greater than or equal to 2.

[0112] Among them, a part of resources can be set in the frequency domain as resources for carrying wake-up signals. In this part of resources, there can be but not limited to M subcarrier segments. Among the above M subcarrier segments, each subcarrier segment corresponds to carrying its own bits, and the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets.

[0113] In some embodiments, there may be multiple frequency domain bandwidths or subcarrier groups in the frequency domain, and each frequency domain bandwidth or subcarrier group includes M subcarrier segments.

[0114] That is, the frequency domain resources used to carry the wake-up signal may include multiple groups of M subcarrier segments, and each group of M subcarrier segments corresponds to a frequency domain bandwidth or a subcarrier group.

[0115] Taking the wake-up signal generation method OOK-2 as an example, please refer to Figure 12, which shows another wake-up information carrying schematic diagram involved in an embodiment of the present application. As shown in Figure 12, there are M subcarrier segments in the frequency domain that carry the wake-up signal, and M segments carry M bits. In this case, the information carried by different subcarrier segments can correspond to the wake-up information of different terminals or terminal groups. As shown in Figure 12, the subcarrier group carrying the wake-up signal includes two segments, and in each OFDM symbol, the two subcarrier segments can respectively carry 1 bit of information. The information carried by the two subcarrier segments can respectively correspond to the wake-up information of different terminals or terminal groups.

[0116] Furthermore, similar to the case of OOK-1, there can also be multiple frequency domain bandwidths or subcarrier groups containing M subcarrier segments, each used to carry different wake-up signals. Different wake-up signals can carry wake-up information for different terminals or terminal groups.

[0117] In some embodiments, when the wake-up signals of at least two terminals or at least two sets of terminals are carried by different subcarrier segments, M subcarrier segments in the frequency domain are used to carry the wake-up signals, and one subcarrier in each of the M subcarrier segments is modulated to carry one wake-up signal through the M subcarrier segments; M is an integer greater than or equal to 2. Optionally, in the above embodiment, there may also be multiple frequency domain bandwidths or subcarrier groups in the frequency domain, and each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain contains M subcarrier segments; the multiple frequency domain bandwidths or subcarrier groups are respectively used to carry different wake-up signals; and different wake-up signals are used to carry wake-up information of different terminals or sets of terminals.

[0118] Taking OOK-3, a wake-up signal generation method, as an example, M subcarrier segments are used to carry the wake-up signal in the frequency domain. In each of the M segments, only one subcarrier is modulated to carry OOK = 1. Similar to the case of OOK-1, when the OOK-3 transmission method uses M subcarrier segments to carry only one wake-up signal, multiple frequency domain bandwidths or subcarrier groups containing M subcarrier segments can also be used to carry different wake-up signals. Different wake-up signals can carry wake-up information for different terminals or terminal groups.

[0119] In some embodiments, one subcarrier in each of the M subcarrier segments constitutes a subcarrier group, and each subcarrier group is used to carry a wake-up signal.

[0120] Furthermore, in order to further improve the utilization rate of frequency domain resources carrying wake-up signals, the Goertzel filter in the WUR receiver can be used to calculate the energy of the signal carried on one subcarrier, thereby demodulating the OOK signal carried by the subcarrier to 1 or 0. Therefore, different subcarriers in each segment of the M subcarrier segments can carry different wake-up signals. In this case, a group of M subcarriers from the M subcarrier segments, as a subcarrier group, can carry one wake-up signal, and the wake-up signal can carry the wake-up information of one or more terminals or terminal groups. Another group of M subcarriers from the M subcarrier segments, as another subcarrier group, can carry another wake-up signal, and the wake-up signal can carry the wake-up information of another one or more terminals or terminal groups. Please refer to Figure 13, which shows a schematic diagram of the subcarrier group involved in an embodiment of the present application. As shown in Figure 13, the subcarrier carrying the wake-up signal is divided into two subcarrier segments, and one subcarrier is taken from each segment to form a subcarrier group 1 containing two subcarriers for carrying LP-WUS signal 1. The same method is used to form a subcarrier group 2 including 2 subcarriers for carrying LP-WUS signal 2.

[0121] In some embodiments, there are multiple frequency domain bandwidths or subcarrier groups in the frequency domain for carrying different wake-up signals. Different wake-up signals can carry wake-up information for different terminals or terminal groups. Taking the wake-up signal generation method OOK-4 as an example, please refer to Figure 14, which shows a schematic diagram of a signal generation process involved in this application. As shown in Figure 14, different wake-up information to be generated is respectively formed into wake-up signals through the signal generation process.

[0122] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, in the multiple frequency domain bandwidths or subcarrier groups in the frequency domain, each of the multiple frequency domain bandwidths or subcarrier groups contains N subcarriers, and the N subcarriers are generated by a wake-up signal through a discrete Fourier transform DFT method; different multiple frequency domain bandwidths or subcarrier groups are used to carry different wake-up signals, respectively; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

[0123] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0124] N subcarriers are divided into M pairs of subcarrier segments, one subcarrier segment in each pair of the M pairs of subcarrier segments is modulated, and the other subcarrier segment is zero power, so as to carry a wake-up signal on the N subcarriers.

[0125] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0126] Among them, N subcarriers are divided into 2 M subcarrier segments, 2 M One subcarrier segment among the subcarrier segments is modulated, and the other subcarrier segments are zero power, so as to carry a wake-up signal on N subcarriers.

[0127] Taking FSK-1 and FSK-2 as examples, multiple frequency bandwidths or subcarrier groups containing N subcarriers can be used to carry different wake-up signals. Different wake-up signals can carry wake-up information for different terminals or terminal groups.

[0128] In some embodiments, when a terminal set includes a PO or terminals in a PO group, each PO is divided into multiple terminal groups, and each bit in the wake-up information carried by a wake-up signal is used to indicate the wake-up information of a terminal group.

[0129] In the above embodiment, the terminals corresponding to one PO can be further divided into multiple terminal groups. Through the above method, one bit in the wake-up information can indicate the wake-up information of a terminal group within a certain PO. Please refer to Figure 15, which shows a schematic diagram of the terminal group division involved in the embodiment of the present application. As shown in Figure 15, the wake-up information carried by the wake-up signal includes 16 bits, which can indicate the corresponding four POs, four terminal groups in each PO, and a total of 16 terminal groups.

[0130] In some embodiments, the wake-up information of multiple different terminal groups corresponding to different POs is carried by wake-up signals on different frequency domain bandwidths, different subcarrier groups, or different subcarrier segments.

[0131] Among them, the wake-up information of multiple different terminal groups corresponding to different POs can be carried by wake-up signals carried on different frequency domain bandwidths or subcarrier groups. Please refer to Figure 16, which shows another terminal group division diagram involved in an embodiment of the present application. As shown in Figure 16, different frequency domain bandwidths or subcarrier groups can be frequency domain bandwidths or subcarrier groups carrying the same wake-up signal, or they can be frequency domain bandwidths or subcarrier groups carrying different wake-up signals.

[0132] In some embodiments, the method further comprises:

[0133] The network device sends configuration information, and the terminal can receive the configuration information accordingly; wherein the configuration information is used by the terminal to determine one or more of the following information:

[0134] Frequency domain resources that carry wake-up signals;

[0135] The content of the wake-up information carried in the wake-up signal;

[0136] The awakening signal where the target awakening information is located;

[0137] The frequency domain resources of the wake-up signal corresponding to the target wake-up information.

[0138] In the above embodiment, in order for the terminal to determine the target frequency domain bandwidth or subcarrier group that carries its wake-up information, the network side needs to send configuration information, which is used by the terminal to determine the frequency domain resources that carry the wake-up signal, the content of the wake-up information, the wake-up signal corresponding to the target wake-up information, or the target frequency domain bandwidth or subcarrier group in the frequency domain resources of the wake-up signal corresponding to the target wake-up information.

[0139] In some embodiments, wake-up signals of at least two terminals or at least two sets of terminals are carried through different time domain resources.

[0140] For example, the wake-up signals carried on different time domain resources can be used to indicate the wake-up information of different terminals or terminal groups, or indicate the wake-up information of terminals corresponding to different POs or PO groups.

[0141] In some embodiments, the wake-up signals carried on different time domain resources belong to different parts of the wake-up signals of the same terminal or terminal set; or, the wake-up signals carried on different time domain resources belong to the wake-up signals of different terminals or terminal sets.

[0142] The wake-up signals sent on different time domain resources may carry wake-up information for different terminals or terminal groups. The wake-up signals sent on different time domain resources may belong to different parts of the same wake-up signal or may belong to different wake-up signals sent on different time domain resources.

[0143] Please refer to Figure 17, which shows a schematic diagram of the time domain resources involved in this application carrying the wake-up signal. As shown in Figure 17, the wake-up signals sent on different time domain resources carry the wake-up information of different terminal groups. The time domain resources can be continuous or discontinuous. Each terminal only needs to detect the wake-up signal within the time domain resource carrying the target wake-up information, avoiding the complexity and power consumption caused by receiving the wake-up signal on a longer time domain resource.

[0144] In some embodiments, the wake-up information of different terminals or terminal groups may be indicated through the frequency domain and the time domain, or the wake-up information of terminals corresponding to different POs or PO groups may be indicated.

[0145] Step 1002: The terminal receives a wake-up signal of the terminal on corresponding frequency domain resources and / or time domain resources.

[0146] In some embodiments, if the wake-up signals corresponding to at least two terminals are carried by different frequency domain resources and / or time domain resources, the terminal can receive the wake-up signal on the frequency domain resources and / or time domain resources where its own wake-up signal is located.

[0147] In some embodiments, if the wake-up signals corresponding to at least two terminal sets are carried by different frequency domain resources and / or time domain resources, the terminal can first determine the terminal set to which it belongs, and then receive the wake-up signal on the frequency domain resources and / or time domain resources where the wake-up signal of the terminal set to which it belongs is located.

[0148] In some embodiments, if the wake-up signals corresponding to multiple terminal groups / PO / PO groups are carried by different frequency domain resources and / or time domain resources, the terminal can determine the terminal group to which the terminal belongs, and determine the frequency domain resources and / or time domain resources where the wake-up signals for carrying the wake-up information of the terminal group to which the terminal belongs are located as the frequency domain resources and / or time domain resources corresponding to the terminal.

[0149] For example, on the terminal side, the wake-up signal and wake-up information can be received through the following steps:

[0150] S1: The terminal determines the terminal group to which it belongs.

[0151] When the wake-up information carried by the wake-up signal can indicate wake-up information corresponding to multiple terminal groups, the terminal needs to determine the terminal group to which it belongs. Existing paging technology uses the terminal ID and paging-related configuration information sent by the network to determine the PO to which it belongs and the terminal group within the PO. The energy-saving signal determines whether to attempt to detect paging indication information on the PO. In this solution, a similar method can be used to determine the PO to which a terminal belongs and the terminal group within the PO.

[0152] S2. The terminal determines a target frequency domain bandwidth or subcarrier group, and / or a target time domain resource, that carries the target wake-up information.

[0153] The terminal determines the wake-up signal carrying the wake-up information corresponding to the terminal group to which it belongs, and determines the target frequency domain bandwidth or subcarrier group, or target time domain resource, that carries the wake-up signal. The frequency domain bandwidth or subcarrier group, or time domain resource that carries the wake-up signal may be the entire frequency domain bandwidth or subcarrier group or time domain resource that carries one wake-up signal, or may be a partial frequency domain bandwidth or subcarrier group or time domain resource that carries one wake-up signal.

[0154] Specifically, the wake-up information corresponding to the terminal group has a corresponding relationship with the frequency domain bandwidth or subcarrier group or time domain resource that carries the wake-up information. The corresponding relationship can be determined by the configuration information indicated by the network. For example, the configuration parameters include the content of the wake-up information carried by the wake-up signal, including the number of POs that can be indicated and the number of terminal groups within the PO, and the configuration information for determining the frequency domain bandwidth or subcarrier group or time domain that carries different parts of the wake-up information. Among them, different parts of the wake-up information can be carried in different frequency domain bandwidths or subcarrier groups or time domain resources of one wake-up signal, or can be carried in frequency domain bandwidths or subcarrier groups or time domain resources corresponding to different wake-up signals.

[0155] Specifically, when different parts of the wake-up information are carried in different frequency bandwidths or subcarrier groups or time domain resources of a wake-up signal, the wake-up signal may include a common part, such as a synchronization signal, a preamble, and the multiple different frequency bandwidths or subcarrier groups or time domain resources. When receiving the target frequency bandwidth or subcarrier group or time domain resource, the terminal also receives the synchronization signal and preamble of the common part to achieve wake-up signal recognition and time-frequency synchronization.

[0156] S3: The terminal receives wake-up information according to the target frequency domain bandwidth or subcarrier group, and / or time domain resources.

[0157] After the terminal determines the target frequency domain bandwidth or subcarrier group or time domain resource that carries the target wake-up information, it only needs to receive the target frequency domain bandwidth or subcarrier group or time domain resource to obtain the target wake-up information. Among them, the target frequency domain bandwidth or subcarrier group or time domain resource can correspond to the entire frequency domain bandwidth or subcarrier group of a wake-up signal, or it can correspond to a partial frequency domain bandwidth or subcarrier group or time domain resource of a wake-up signal. Therefore, the terminal does not need to detect non-target frequency domain bandwidth or subcarrier group or time domain resource, including the wake-up signal corresponding to the non-target frequency domain bandwidth or subcarrier group or time domain resource, or the non-target frequency domain bandwidth or subcarrier group or time domain resource in the frequency domain bandwidth or subcarrier group or time domain resource that carries the wake-up signal.

[0158] The energy-saving signal introduced in R17 is carried by the PDCCH, and the terminal receiver is an OFDM-supported receiver. The energy-saving signal can support a large number of bits and can carry energy-saving information for multiple POs and multiple terminal groups under each PO. For the wake-up signal introduced in R18 for energy saving in terminal paging, the overhead of the wake-up signal still needs to be considered. This requires that the wake-up signal is not targeted at a single terminal, but can indicate the wake-up information of multiple terminals at the same time. In the transmission method of the wake-up signal, due to the use of OOK or FSK modulation, its information rate is limited, and a single wake-up signal is not suitable for carrying a large number of bits. It is relatively difficult to indicate the wake-up information of multiple terminals simultaneously through a single wake-up signal. The solutions shown in the above embodiments of the present application provide a method for sending / receiving wake-up information, which indicates the wake-up information of different terminals or terminal groups by carrying wake-up signals on different frequency domain bandwidths or subcarrier groups. In other words, the frequency domain bandwidths or subcarrier groups carrying the wake-up information of different terminals or terminal groups can be different. Alternatively, the wake-up signal carried on different time domain resources is used to indicate the wake-up information of different terminals or terminal groups. It also includes a combination of the above two methods.

[0159] That is to say, the method for sending and receiving wake-up information provided in the above-mentioned embodiments of the present application carries the wake-up information of different terminal groups through different frequency domain bandwidths or subcarrier groups or time domain resources, so that the terminal only needs to receive the wake-up signal or part of the wake-up signal that carries less information, which is beneficial to energy saving of the terminal's wake-up signal receiver.

[0160] Please refer to Figure 18, which shows a block diagram of a wake-up signal sending device provided by an embodiment of the present application. The device has the function of implementing the method shown in Figure 8 or Figure 10 above, which is performed by the network device. As shown in Figure 18, the device may include:

[0161] The sending module 1801 is configured to send a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

[0162] In some embodiments, the wake-up signal is received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

[0163] In some embodiments, a terminal set includes:

[0164] a terminal in a terminal group; or,

[0165] A terminal corresponding to a paging occasion PO; or,

[0166] The terminal corresponding to a PO group.

[0167] In some embodiments, when the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths, different subcarrier groups or different subcarrier segments.

[0168] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, multiple frequency domain bandwidths or subcarrier groups in the frequency domain are used to carry different wake-up signals; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

[0169] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, M subcarrier segments in the frequency domain are used to carry M bits; the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets; M is an integer greater than or equal to 2.

[0170] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, one subcarrier in each of the M subcarrier segments in the frequency domain is modulated to carry one wake-up signal through the M subcarrier segments; M is an integer greater than or equal to 2.

[0171] In some embodiments, in the multiple frequency domain bandwidths or subcarrier groups in the frequency domain, each frequency domain bandwidth or subcarrier group includes M subcarrier segments.

[0172] In some embodiments, one subcarrier of each of the M subcarrier segments constitutes a subcarrier group, and each subcarrier group is used to carry one wake-up signal.

[0173] In some embodiments, when the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain contains N subcarriers, and the N subcarriers are generated by one wake-up signal through a discrete Fourier transform DFT method.

[0174] In some embodiments, when the wake-up signals corresponding to the at least two terminals or the at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0175] The N subcarriers are divided into M pairs of subcarrier segments, one subcarrier segment in each pair of the M pairs of subcarrier segments is modulated, and the other subcarrier segment is zero power, so as to carry one wake-up signal on the N subcarriers.

[0176] In some embodiments, when the wake-up signals corresponding to the at least two terminals or the at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0177] The N subcarriers are divided into 2 M subcarrier segments, the 2 M One subcarrier segment among the N subcarrier segments is modulated, and the other subcarrier segments are zero power, so as to carry one wake-up signal on the N subcarriers.

[0178] In some embodiments, when one of the terminal sets includes a PO or a terminal in a PO group, each PO is divided into multiple terminal groups, and each bit in the wake-up information carried by one of the wake-up signals is used to indicate the wake-up information of one of the terminal groups;

[0179] The wake-up information of multiple different terminal groups corresponding to different POs is carried by wake-up signals on different frequency domain bandwidths, different subcarrier groups, or different subcarrier segments.

[0180] In some embodiments, the sending module is further configured to send configuration information, where the configuration information is used by the terminal to determine one or more of the following information:

[0181] Frequency domain resources that carry wake-up signals;

[0182] The content of the wake-up information carried in the wake-up signal;

[0183] The awakening signal where the target awakening information is located;

[0184] The frequency domain resources of the wake-up signal corresponding to the target wake-up information.

[0185] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals carried on different time domain resources belong to different parts of the wake-up signals of the same terminal or terminal set; or

[0186] The wake-up signals carried on different time domain resources belong to different terminals or wake-up signals of terminal groups.

[0187] Optionally, the above-mentioned device may also include a processing module, a receiving module, a storage module, etc., wherein the processing module is used to process the data or signals in the device, such as generating signals, parsing signals, etc.; the receiving module is used to receive signals / data sent by the terminal; and the storage module is used to store signal data to be sent or received signal data.

[0188] Please refer to Figure 19, which shows a block diagram of a wake-up signal receiving device provided by an embodiment of the present application. The device has the function of implementing the method shown in Figure 9 or Figure 10 above, which is performed by the terminal. As shown in Figure 19, the device may include:

[0189] The receiving module 1901 is configured to receive a wake-up signal of the terminal on the frequency domain resources and / or time domain resources corresponding to the terminal;

[0190] The wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

[0191] In some embodiments, the apparatus further comprises: a determining module configured to:

[0192] determining the terminal group to which the terminal belongs;

[0193] Determine frequency domain resources and / or time domain resources where the wake-up signal used to carry the wake-up information of the terminal group to which the terminal belongs is located.

[0194] In some embodiments, the device also includes: a determination module for determining the terminal group to which the terminal belongs, and determining the frequency domain resources and / or time domain resources of the wake-up signal used to carry the wake-up information of the terminal group to which the terminal belongs, as the frequency domain resources and / or time domain resources corresponding to the terminal.

[0195] In some embodiments, the wake-up signal is received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

[0196] In some embodiments, a terminal set includes:

[0197] a terminal in a terminal group; or,

[0198] A terminal corresponding to a paging occasion PO; or,

[0199] The terminal corresponding to a PO group.

[0200] In some embodiments, when the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths, different subcarrier groups or different subcarrier segments.

[0201] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, multiple frequency domain bandwidths or subcarrier groups in the frequency domain are used to carry different wake-up signals; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

[0202] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, M subcarrier segments in the frequency domain are used to carry M bits; the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets; M is an integer greater than or equal to 2.

[0203] In some embodiments, when the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, one subcarrier in each of the M subcarrier segments in the frequency domain is modulated to carry one wake-up signal through the M subcarrier segments; M is an integer greater than or equal to 2.

[0204] In some embodiments, in the multiple frequency domain bandwidths or subcarrier groups in the frequency domain, each frequency domain bandwidth or subcarrier group includes M subcarrier segments.

[0205] In some embodiments, one subcarrier of each of the M subcarrier segments constitutes a subcarrier group, and each subcarrier group is used to carry one wake-up signal.

[0206] In some embodiments, when the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain contains N subcarriers, and the N subcarriers are generated by one wake-up signal through a discrete Fourier transform DFT method.

[0207] In some embodiments, when the wake-up signals corresponding to the at least two terminals or the at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0208] The N subcarriers are divided into M pairs of subcarrier segments, one subcarrier segment in each pair of the M pairs of subcarrier segments is modulated, and the other subcarrier segment is zero power, so as to carry one wake-up signal on the N subcarriers.

[0209] In some embodiments, when the wake-up signals corresponding to the at least two terminals or the at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers;

[0210] The N subcarriers are divided into 2 M subcarrier segments, the 2 M One subcarrier segment among the N subcarrier segments is modulated, and the other subcarrier segments are zero power, so as to carry one wake-up signal on the N subcarriers.

[0211] In some embodiments, when one of the terminal sets includes a PO or a terminal in a PO group, each PO is divided into multiple terminal groups, and each bit in the wake-up information carried by one of the wake-up signals is used to indicate the wake-up information of one of the terminal groups;

[0212] The wake-up information of multiple different terminal groups corresponding to different POs is carried by wake-up signals on different frequency domain bandwidths, different subcarrier groups, or different subcarrier segments.

[0213] In some embodiments, the receiving module is further configured to receive configuration information sent by a network device, where the configuration information is used by the terminal to determine one or more of the following information:

[0214] Frequency domain resources that carry wake-up signals;

[0215] The content of the wake-up information carried in the wake-up signal;

[0216] The awakening signal where the target awakening information is located;

[0217] The frequency domain resources of the wake-up signal corresponding to the target wake-up information.

[0218] In some embodiments, when the wake-up signals corresponding to at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals carried on different time domain resources belong to different parts of the wake-up signals of the same terminal or terminal set; or

[0219] The wake-up signals carried on different time domain resources belong to different terminals or wake-up signals of terminal groups.

[0220] Optionally, the above-mentioned device may also include a processing module, a receiving module, a storage module, etc., wherein the processing module is used to process the data or signals in the device, such as generating signals, parsing signals, etc.; the receiving module is used to receive signals / data sent by network equipment or other terminals; the storage module is used to store signal data to be sent or received signal data.

[0221] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0222] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0223] Please refer to FIG20 , which shows a schematic diagram of the structure of a communication device 2000 provided in one embodiment of the present application. The communication device 2000 may include: a processor 2001 , a receiver 2002 , a transmitter 2003 , a memory 2004 and a bus 2005 .

[0224] The processor 2001 includes one or more processing cores. The processor 2001 executes various functional applications and information processing by running software programs and modules.

[0225] Receiver 2002 and transmitter 2003 can be implemented as a communication component, which can be a communication chip. This communication chip can also be called a transceiver. Memory 2004 is connected to processor 2001 via bus 2005. Memory 2004 can be used to store computer programs, and processor 2001 is used to execute the computer programs to implement the various steps in the above method embodiments.

[0226] In addition, the memory 2004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0227] In an exemplary scenario, when the communication device 2000 is implemented as the above-mentioned terminal, the receiver 2002 and the processor 2001 execute the computer program so that the communication device implements the various steps performed by the terminal in the method shown in either Figure 9 or Figure 10.

[0228] In an exemplary embodiment, when the communication device 2000 is implemented as the above-mentioned network device, the transmitter 2003 and the processor 2001 execute the computer program so that the communication device implements the various steps performed by the network device in the method shown in either Figure 8 or Figure 10.

[0229] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program is loaded and executed by a processor to implement all or part of the steps performed by the terminal or network device in the method shown in Figures 8, 9 or 10 above.

[0230] The present application also provides a chip, which is used to run in a communication device so that the communication device executes all or part of the steps performed by the terminal or network device in the method shown in Figure 8, Figure 9 or Figure 10 above.

[0231] The present application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor of a communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the communication device to perform all or part of the steps performed by the terminal or network device in the method shown in Figures 8, 9, or 10 above.

[0232] The present application also provides a computer program, which is executed by a processor of a communication device to implement all or part of the steps performed by a terminal or network device in the method shown in Figure 8, Figure 9 or Figure 10 above.

[0233] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0234] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for sending a wake-up signal, characterized in that: The method is performed by a network device, and the method includes: Sending a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

2. The method according to claim 1, characterized in that The wake-up signal is received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

3. The method according to claim 1 or 2, characterized in that: A terminal set includes: a terminal in a terminal group; or, A terminal corresponding to a paging occasion PO; or, A terminal corresponding to a PO group.

4. The method according to any one of claims 1 to 3, characterized in that: When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths, different subcarrier groups or different subcarrier segments.

5. The method according to claim 4, characterized in that When the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, multiple frequency domain bandwidths or subcarrier groups in the frequency domain are used to carry different wake-up signals; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

6. The method according to claim 4, characterized in that When the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, the M subcarrier segments in the frequency domain are used to carry M bits; the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets; M is an integer greater than or equal to 2.

7. The method according to claim 4, characterized in that In a case where the wake-up signals of the at least two terminals or the at least two terminal sets are carried by different subcarrier segments, one subcarrier in each of the M subcarrier segments in the frequency domain is modulated to carry one wake-up signal through the M subcarrier segments; M is an integer greater than or equal to 2.

8. The method according to claim 6 or 7, characterized in that: In the multiple frequency domain bandwidths or subcarrier groups in the frequency domain, each frequency domain bandwidth or subcarrier group includes M subcarrier segments.

9. The method according to claim 7, characterized in that: One subcarrier of each of the M subcarrier segments constitutes a subcarrier group, and each of the subcarrier groups is used to carry one wake-up signal.

10. The method according to claim 4, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers, and the N subcarriers are generated by one wake-up signal through a discrete Fourier transform DFT method.

11. The method according to claim 4, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers; The N subcarriers are divided into M pairs of subcarrier segments, one subcarrier segment in each pair of subcarrier segments of the M pairs of subcarrier segments is modulated, and the other subcarrier segment is zero power, so as to carry one wake-up signal on the N subcarriers.

12. The method according to claim 4, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers; The N subcarriers are divided into 2 M subcarrier segments, the 2 M One subcarrier segment among the N subcarrier segments is modulated, and the other subcarrier segments are zero power, so as to carry one wake-up signal on the N subcarriers.

13. The method according to any one of claims 4 to 12, characterized in that: In the case where one of the terminal sets includes a PO or a terminal in a PO group, each PO is divided into multiple terminal groups, and each bit in the wake-up information carried by the wake-up signal is used to indicate the wake-up information of one of the terminal groups; The wake-up information of multiple different terminal groups corresponding to different POs is carried by wake-up signals on different frequency domain bandwidths, different subcarrier groups, or different subcarrier segments.

14. The method according to any one of claims 4 to 13, characterized in that: The method further comprises: Send configuration information, where the configuration information is used by the terminal to determine one or more of the following information: Frequency domain resources that carry wake-up signals; The content of the wake-up information carried in the wake-up signal; The arousal signal where the target arousal information is located; The frequency domain resources of the wake-up signal corresponding to the target wake-up information.

15. The method according to any one of claims 1 to 3, characterized in that: In the case where the wake-up signals corresponding to the at least two terminals or the at least two terminal sets are carried by different time domain resources, The wake-up signals carried on different time domain resources belong to different parts of the wake-up signals of the same terminal or terminal set; or, The wake-up signals carried on different time domain resources belong to different terminals or wake-up signals of terminal sets.

16. A method for receiving a wake-up signal, characterized in that: The method is executed by a terminal, and includes: Receiving a wake-up signal of the terminal on a frequency domain resource and / or a time domain resource corresponding to the terminal; The wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

17. The method according to claim 16, characterized in that The method further comprises: Determining the terminal group to which the terminal belongs; Determine frequency domain resources and / or time domain resources where the wake-up signal used to carry the wake-up information of the terminal group to which the terminal belongs is located, as the frequency domain resources and / or time domain resources corresponding to the terminal.

18. The method according to claim 16 or 17, characterized in that The wake-up signal is received by a first receiver of the terminal, and the wake-up signal is used to wake up a second receiver of the terminal.

19. The method according to any one of claims 16 to 18, characterized in that: A terminal set includes: a terminal in a terminal group; or, A terminal corresponding to a paging occasion PO; or, A terminal corresponding to a PO group.

20. The method according to any one of claims 16 to 19, characterized in that: When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain resources, the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths, different subcarrier groups or different subcarrier segments.

21. The method according to claim 20, characterized in that When the wake-up signals of the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, multiple frequency domain bandwidths or subcarrier groups in the frequency domain are used to carry different wake-up signals; different wake-up signals are used to carry wake-up information of different terminals or terminal sets.

22. The method according to claim 20, characterized in that When the wake-up signals of the at least two terminals or at least two terminal sets are carried by different subcarrier segments, the M subcarrier segments in the frequency domain are used to carry M bits; the bits carried by different subcarrier segments correspond to the wake-up information of different terminals or terminal sets; M is an integer greater than or equal to 2.

23. The method according to claim 20, characterized in that In a case where the wake-up signals of the at least two terminals or the at least two terminal sets are carried by different subcarrier segments, one subcarrier in each of the M subcarrier segments in the frequency domain is modulated to carry one wake-up signal through the M subcarrier segments; M is an integer greater than or equal to 2.

24. The method according to claim 22 or 23, characterized in that In the multiple frequency domain bandwidths or subcarrier groups in the frequency domain, each frequency domain bandwidth or subcarrier group includes M subcarrier segments.

25. The method according to claim 23, characterized in that One subcarrier of each of the M subcarrier segments constitutes a subcarrier group, and each of the subcarrier groups is used to carry one wake-up signal.

26. The method according to claim 20, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers, and the N subcarriers are generated by one wake-up signal through a discrete Fourier transform DFT method.

27. The method according to claim 20, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers; The N subcarriers are divided into M pairs of subcarrier segments, one subcarrier segment in each pair of subcarrier segments of the M pairs of subcarrier segments is modulated, and the other subcarrier segment is zero power, so as to carry one wake-up signal on the N subcarriers.

28. The method according to claim 20, characterized in that When the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain bandwidths or subcarrier groups, each of the multiple frequency domain bandwidths or subcarrier groups in the frequency domain includes N subcarriers; The N subcarriers are divided into 2M subcarrier segments, one subcarrier segment among the 2M subcarrier segments is modulated, and the other subcarrier segments are zero power, so as to carry one wake-up signal on the N subcarriers.

29. The method according to any one of claims 20 to 28, characterized in that: In the case where one of the terminal sets includes a PO or a terminal in a PO group, each PO is divided into multiple terminal groups, and each bit in the wake-up information carried by the wake-up signal is used to indicate the wake-up information of one of the terminal groups; The wake-up information of multiple different terminal groups corresponding to different POs is carried by wake-up signals on different frequency domain bandwidths, different subcarrier groups, or different subcarrier segments.

30. The method according to any one of claims 20 to 29, characterized in that: The method further comprises: Receive configuration information sent by a network device, where the configuration information is used by the terminal to determine one or more of the following information: Frequency domain resources that carry wake-up signals; The content of the wake-up information carried in the wake-up signal; The arousal signal where the target arousal information is located; The frequency domain resources of the wake-up signal corresponding to the target wake-up information.

31. The method according to any one of claims 16 to 30, characterized in that: In the case where the wake-up signals corresponding to the at least two terminals or at least two terminal sets are carried by different frequency domain resources, The wake-up signals carried on different time domain resources belong to different parts of the wake-up signals of the same terminal or terminal set; or, The wake-up signals carried on different time domain resources belong to different terminals or wake-up signals of terminal sets.

32. A wake-up signal sending device, characterized in that: The device comprises: The sending module is used to send a wake-up signal; the wake-up signal corresponding to at least two terminals or at least two terminal sets is carried by different frequency domain resources and / or time domain resources.

33. A wake-up signal receiving device, characterized in that: The device comprises: A receiving module, configured to receive a wake-up signal of the terminal on a frequency domain resource and / or a time domain resource corresponding to the terminal; The wake-up signals of at least two terminals or at least two terminal sets are carried by different frequency domain resources and / or time domain resources.

34. A network device, characterized in that: The terminal includes a processor, a memory and a transceiver; The memory stores a computer program, and the processor executes the computer program so that the network device implements the wake-up signal sending method as described in any one of claims 1 to 15 above.

35. A terminal, characterized in that: The terminal includes a processor, a memory and a transceiver; The memory stores a computer program, and the processor executes the computer program to enable the terminal to implement the above rights. The wake-up signal receiving method as described in any one of claims 16 to 31.

36. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, which is used to be executed by a processor of a communication device so that the communication device implements the wake-up signal sending method as described in any one of claims 1 to 15, or implements the wake-up signal receiving method as described in any one of claims 16 to 31.

37. A chip, characterized in that: The chip is used to run in a communication device so that the communication device executes the wake-up signal sending method as described in any one of claims 1 to 15, or implements the wake-up signal receiving method as described in any one of claims 16 to 31.

38. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the processor of the communication device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, so that the communication device executes the wake-up signal sending method as described in any one of claims 1 to 15, or implements the wake-up signal receiving method as described in any one of claims 16 to 31.

39. A computer program, characterized in that The computer program is executed by a processor of a communication device, so that the communication device implements the wake-up signal sending method according to any one of claims 1 to 15, or implements the wake-up signal receiving method according to any one of claims 16 to 31.

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