Signal sending method, signal receiving method, signal sending device, signal receiving device and signal receiving equipment

Abstract

The invention discloses a signal sending method and device, a signal receiving method and device and equipment, and belongs to the technical field of communication, and the signal sending method comprises the steps that first equipment generates a target signal, and the target signal occupies at least one first time unit; wherein the second time unit comprises a plurality of first time units, and the second time unit comprises a time domain resource unit in the OFDM system; and the first equipment starts to send the target signal from a target first time unit in the second time units.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a signal sending method, a receiving method, a device, and an apparatus. Background Art

[0002] In some communication systems, new communication devices are introduced, such as Internet of Things (IoT) devices, Ambient IoT (A-IoT) devices, or Lower Power Wake Up Receiver (LP WUR) devices. Since the signals sent or received by these devices are different from those sent or received by traditional terminals, it is likely that the signals sent or received by these devices cannot be aligned with the time domain resource units of an Orthogonal Frequency Division Multiplexing (OFDM) system. Summary of the Invention

[0003] Embodiments of this application provide a signal sending method, a receiving method, a device, and an apparatus, which can solve the problem that signals sent or received by a device are likely to be misaligned with the time domain resource units of an OFDM system.

[0004] In a first aspect, a signal sending method is provided, including:

[0005] A first device generates a target signal, where the target signal occupies at least one first time unit; wherein, a second time unit includes multiple first time units, and the second time unit includes a time domain resource unit in an OFDM system;

[0006] The first device starts to send the target signal from a target first time unit in the second time unit.

[0007] In a second aspect, a signal receiving method is provided, including:

[0008] A second device receives a target signal;

[0009] where the target signal occupies at least one first time unit, a second time unit includes multiple first time units, and the second time unit includes a time domain resource unit in an OFDM system.

[0010] In a third aspect, a signal sending device is provided, including:

[0011] A generating module, configured to generate a target signal, where the target signal occupies at least one first time unit; wherein, a second time unit includes multiple first time units, and the second time unit includes a time domain resource unit in an OFDM system;

[0012] A transmitting module, configured to transmit the target signal starting from a target first time unit in the second time unit.

[0013] In a fourth aspect, a signal receiving device is provided, including:

[0014] A receiving module, configured to receive a target signal;

[0015] Wherein, the target signal occupies at least one first time unit, the second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an OFDM system.

[0016] In a fifth aspect, a communication device is provided, the device includes a processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method provided in the embodiments of the present application are implemented.

[0017] In a sixth aspect, a communication device is provided, including a processor and a communication interface. Wherein, the processor is configured to generate a target signal, and the target signal occupies at least one first time unit; wherein, the second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an OFDM system; the communication interface is configured to transmit the target signal starting from a target first time unit in the second time unit.

[0018] In a seventh aspect, a communication device is provided, the device includes a processor and a memory, the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the signal receiving method provided in the embodiments of the present application are implemented.

[0019] In an eighth aspect, a communication device is provided, including a processor and a communication interface. Wherein, the communication interface is configured to receive a target signal; wherein, the target signal occupies at least one first time unit, the second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an OFDM system.

[0020] In a ninth aspect, a readable storage medium is provided, and a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the signal sending method provided in the embodiments of the present application are implemented, or the steps of the signal receiving method provided in the embodiments of the present application are implemented.

[0021] In a tenth aspect, a wireless communication system is provided, including: a first device and a second device. The first device can be used to execute the steps of the signal sending method provided in the embodiments of the present application, and the second device can be used to execute the steps of the signal receiving method provided in the embodiments of the present application.

[0022] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the signal sending method provided in the embodiments of the present application, or to implement the steps of the signal receiving method provided in the embodiments of the present application.

[0023] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the steps of the signal sending method provided in the embodiments of the present application, or the computer program / program product is executed by at least one processor to implement the steps of the signal receiving method provided in the embodiments of the present application.

[0024] In the embodiments of the present application, the first device generates a target signal, and the target signal occupies at least one first time unit; wherein, a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an OFDM system; the first device starts to send the target signal from a target first time unit in the second time unit. In this way, since the second time unit includes a time domain resource unit in an OFDM system, and a plurality of first time units are included in the second time unit, starting to send the target signal from the target first time unit in the second time unit can make the target signal more easily aligned with the time domain resource unit in the OFDM system. In this way, it is possible to reuse the frame structure design of the OFDM system as much as possible and reduce the implementation complexity of the device. Description of the Drawings

[0025] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0026] Figure 2 is a flowchart of a signal sending method provided in the embodiments of the present application;

[0027] Figure 3 is a schematic diagram of a first time unit provided in the embodiments of the present application;

[0028] Figure 4 is a schematic diagram of another first time unit provided in the embodiments of the present application;

[0029] Figure 5 is a flowchart of a signal receiving method provided in the embodiments of the present application;

[0030] Figure 6 It is a structural diagram of a signal sending device provided by an embodiment of the present application;

[0031] Figure 7 It is a structural diagram of a signal receiving device provided by an embodiment of the present application;

[0032] Figure 8 It is a structural diagram of a communication device provided by an embodiment of the present application;

[0033] Figure 9 It is a structural diagram of another communication device provided by an embodiment of the present application;

[0034] Figure 10 It is a structural diagram of another communication device provided by an embodiment of the present application. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0036] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0037] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0038] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0039] Figure 1The block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine, a self-service machine, an internet of things (IoT) device or an ambient internet of things (A-IoT) device, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be called a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0040] The network-side device 12 may include an access network device or a core network device. Among them, the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as Node B (NB), Evolved Node B (eNB), next generation Node B (gNB), New Radio Node B (NR Node B), access point, relay base station (RBS), serving base station (SBS), base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), home Node B (HNB), home evolved Node B, transmission reception point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to a specific technical term. It should be noted that in the embodiments of this application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0041] The core network device may include, but is not limited to, at least one of the following: core network nodes, core network functions, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0042] In some embodiments, the ambient Internet of Things device is characterized by the A-IoT device according to the energy storage capacity of the ambient Internet of Things device and the ability to generate and transmit radio frequency signals. The A-IoT device has one of the following energy storage capabilities:

[0043] Storage capacity 1: It has no ability to store energy.

[0044] Storage capacity 2: The energy can be stored up to E1 or E2 joules, where it is possible that E1 = E2

[0045] Storage capacity 3: The energy can be stored up to E2 joules

[0046] Relying on these storage capacities, the study considered the following set of A-IoT devices:

[0047] Device A: Without energy storage, without independent signal generation / amplification, i.e., backscatter transmission.

[0048] Device B: With energy storage, without independent signal generation, i.e., backscatter transmission. The use of stored energy can include amplification of the reflected signal.

[0049] Device C: With energy storage, with independent signal generation, i.e., active radio components for transmission.

[0050] Devices with different energy storage capabilities also affect the transmission quality of the devices. Generally, devices with higher energy storage also mean higher receiving sensitivity or higher transmitting power. That is, the reliability of the receiving or transmitting link can be better guaranteed.

[0051] The main data or service types of A-IoT can be at least one of the following:

[0052] Device-originated (DO);

[0053] Device-terminated (DT)

[0054] Among them, DO and DT data indicate that the data stream originates from or is transmitted to A-IoT devices. For the data stream originating from A-IoT devices, i.e., DO data, it can be further classified as:

[0055] Device-originated access (DOA), i.e., the A-IoT device autonomously initiates data transmission; for example: connecting a large number of various sensors, and these sensors collect and actively report information about the environment, devices, and organisms when necessary;

[0056] Device-originated–device-terminated triggered (DO-DTT), i.e., a reader device such as a base station triggers the A-IoT device to initiate data transmission; for example: asset identification, status reporting, and tracking are all downlink-triggered reports, and the reader collects data from the tag by triggering an inventory program. Since the data is generated or initiated in the IoT device, this service should be regarded as a DO service triggered by the control command on the reader side to initiate the tag.

[0057] In some embodiments, there are two generation methods for the On-Off Keying (OOK) modulation method. One is the multi-carrier OOK signal (Multi-Carrier On-Off Keying, MC-OOK) based on the OFDM architecture, and the other is the single-carrier OOK signal.

[0058] For the multi-carrier OOK signal based on the OFDM architecture, its design idea is not to change the transmitting end architecture of the existing base station. Therefore, appropriate data is transmitted on the OFDM subcarriers to make it present a square wave signal in the time domain.

[0059] The multi-carrier OOK signal based on the OFDM architecture can be divided into the following two types:

[0060] OOK-1 and OOK-4.

[0061] Among them, OOK-1 mainly has one OFDM symbol carrying one bit of information. When transmitting bit1, data is transmitted in the frequency domain of the corresponding symbol. When transmitting bit0, nothing is transmitted in the frequency domain of the corresponding symbol. To improve the transmission rate, it is necessary to increase the subcarrier spacing (Subcarrier Spacing, SCS). The data in the frequency domain can be ZC sequences, quadrature amplitude modulation (Quadrature Amplitude Modulation, QAM) signals, etc. to ensure the flatness of the frequency domain signal.

[0062] The OOK-4 waveform is a relatively flexible waveform. It can control the transmission rate by adjusting the number of bits transmitted within one OFDM symbol. There are two generation methods for OOK-4. One is to generate it using Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM), and the other is to generate it using the least squares method (Least Square, LS). The idea of DFT-S-OFDM is to first generate the desired waveform in the time domain. The number of sampling points of this time domain waveform is equal to the number of resource elements (REs) of the wake-up signal (Wake Up Signal, WUS) bandwidth, and then the frequency domain information is obtained through the discrete Fourier transform (Discrete Fourier Transform, DFT). LS also inversely calculates the frequency domain waveform from the desired time domain waveform. It mainly optimizes the input frequency domain sequence X by means of the FFT matrix and the ideal time domain waveform.

[0063] The following will combine the accompanying drawings to elaborate in detail on a signal sending method, receiving method, device, and equipment provided by an embodiment of the present application through some embodiments and their application scenarios.

[0064] Please refer to Figure 2 , Figure 2 which is a flowchart of a signal sending method provided by an embodiment of the present application. As Figure 2 shown, it includes the following steps:

[0065] Step 201, the first device generates a target signal, and the target signal occupies at least one first time unit; wherein, a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system.

[0066] Among them, the above-mentioned first device can be a terminal or a network-side device.

[0067] In some embodiments, the above-mentioned first device can be a reading and writing device, a device for handheld reading or fixed reading (and sometimes writing) of responder device information, or a device communicating with a responder device or a low-power wake-up receiver device, such as a terminal communicating with a responder device, a network-side device communicating with a responder device; or the first device can be a device with reading and writing functions, such as a reader. In this embodiment, the above-mentioned target signal can be an AIoT downlink signal.

[0068] In some embodiments, the above-mentioned first device can also be a responder device or a low-power wake-up receiver device, and the second device receiving the above-mentioned target signal can be a tag, which can be a radio frequency identification (RFID) tag, a common name for RFID. The radio frequency identification technology adopted by the tag can be divided into three types: active, passive, and semi-active. For a passive tag, it can also be called a passive Internet of Things (IOT) device. Or some active tags have the ability to generate active signals. Since the energy of the responder device can come from the environment, such as environmental radio frequency (RF) energy, thermal energy, wind energy, kinetic energy, etc., it can also be called A-IoT. Therefore, the responder device can also be regarded as a kind of terminal and can be called a terminal device. In this embodiment, the above-mentioned target signal can be an AIOT uplink signal. In addition, the communication method of the responder device can be signal transmission by backscattering RF.

[0069] In some embodiments, the above-mentioned target signal can be an AIoT signal, specifically an OOK signal.

[0070] The above-mentioned multiple first time units may be multiple basic time units obtained by dividing within a second time unit. For example, the above-mentioned first time unit may be expressed as Y / X, where Y represents the time length of the second time unit, and X represents the number of first time units included within one second time unit.

[0071] The above-mentioned second time unit may be a time domain resource unit defined by one or more OFDM systems. For example: a frame (10 ms), a half-frame (5 ms), a sub-frame (1 ms), a time slot, or a time unit of an OFDM system agreed upon by protocol or configured by the network side, that is, this time unit is a time unit of the OFDM system, and the duration of this time unit is agreed upon by protocol or configured by the network side device.

[0072] Step 202: The first device starts to send the target signal from the target first time unit in the second time unit.

[0073] The above-mentioned first device starts to send the target signal from the target first time unit in the second time unit may be to send the target signal starting from the target first time unit within the second time unit.

[0074] The above-mentioned target first time unit may be agreed upon by protocol, determined by the first device, or determined by the second device, etc. In some embodiments, the first device starting to send the target signal from the target first time unit in the second time unit may enable the target signal to align with the boundary of the second time unit.

[0075] In the embodiments of the present application, the first device generates a target signal, and the target signal occupies at least one first time unit; wherein, multiple of the above-mentioned first time units are included within the second time unit, and the second time unit includes a time domain resource unit in the OFDM system; the first device starts to send the target signal from the target first time unit in the second time unit. In this way, since the second time unit includes a time domain resource unit in the OFDM system, and multiple first time units are included within the second time unit, starting to send the target signal from the target first time unit in the second time unit can make the target signal more easily align with the time domain resource unit in the OFDM system. In this way, it is possible to reuse the frame structure design of the OFDM system as much as possible and reduce the implementation complexity of the device. Specifically, it may be to align with the boundary of the time domain resource unit in the OFDM system, which can better reuse the frame structure design of the OFDM system and reduce the implementation complexity of the device.

[0076] As an optional embodiment, the second time unit includes one of the following:

[0077] One or more frames;

[0078] One or more half - frames;

[0079] One or more sub - frames;

[0080] One or more time slots;

[0081] Target time units of the target duration.

[0082] Among them, the above - mentioned target duration can be the duration agreed by the protocol or the duration configured by the network side. For example, Y = 0.5ms, and Y represents the duration of the second time unit.

[0083] It should be noted that the multiple in the embodiments of this application can include two.

[0084] In this implementation manner, it is possible to determine the first time unit with one or more frames / half - frames / sub - frames / time slots as the granularity, which can make the duration of the first time unit more flexible to meet the needs of more services or devices and improve the compatibility of the system.

[0085] As an optional implementation manner, the second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0086] The number of time domain resource units in the OFDM system included in the second time unit;

[0087] SCS;

[0088] Target parameter, the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed by the protocol or configured by the network - side device.

[0089] That the above - mentioned target parameter is a parameter associated with SCS can be understood as that the above - mentioned target parameter has a mapping relationship with SCS. For example: the above - mentioned target parameter is represented as μ, and the value of μ is related to SCS. For example, μ satisfies 2 μ = SCS / 15kHz. For example, when SCS = 15kHz, μ = 0; when SCS = 30kHz, μ = 1.

[0090] Among them, the above - mentioned X is associated with at least one of the above - mentioned items, which means that X is determined by at least one of the above - mentioned items. For example:

[0091] When the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0092] When the second time unit is N2 sub - frames, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0093] When the second time unit is N3 half - frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0094] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0095] When the second time unit is N5 target - duration target time units, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0096] Where, J is a positive integer greater than 1, and μ is the target parameter.

[0097] In some embodiments, J described above can be equal to 15 or 14.

[0098] Taking J as 15 as an example:

[0099] In N1 time slots, X = 15 * N1;

[0100] In N2 sub - frames (1 ms), X = 15 * 2 μ * N2, the value of μ is related to SCS, and μ satisfies 2 μ = SCS / 15 kHz. For example, when SCS = 15 kHz, μ = 0; when SCS = 30 kHz, μ = 1. If Y = 1 ms, SCS = 15 kHz, X = 15; if Y = 1 ms, SCS = 30 kHz, X = 30; if Y = 1 ms, SCS = 60 kHz, X = 60;

[0101] In N3 half - frames (5 ms), X = 5 * 15 * 2 μ * N3;

[0102] In N4 frames (10 ms), X = 10 * 15 * 2 μ * N4;

[0103] In N5 target time units, X = Y ms / 1 ms * 15 * 2 μ * N5.

[0104] Taking J as 14 as an example:

[0105] In N1 time slots, X = 14 * N1;

[0106] In N2 sub - frames (1 ms), X = 14 * 2 μ * N2, the value of μ is related to SCS, and μ satisfies 2 μ= SCS / 15kHz. For example, when SCS = 15kHz, μ = 0; when SCS = 30kHz, μ = 1. If Y = 1ms, SCS = 15kHz, X = 14; if Y = 1ms, SCS = 30kHz, X = 28; if Y = 1ms, SCS = 60kHz, X = 56;

[0107] Within N3 half - frames (5ms), X = 5 * 14 * 2 μ * N2;

[0108] Within N4 frames (10ms), X = 10 * 14 * 2 μ * N2;

[0109] Within N5 target time units, X = Yms / 1ms * 14 * 2 μ * N5;

[0110] Wherein, the above - mentioned Y represents the duration of the above - mentioned second time unit, and the above - mentioned N1, N2, N3, N4, N5 can be greater than or equal to 1. Optionally, N1, N2, N3, N4 or N5 = 1.

[0111] In the above - mentioned embodiments, it is possible to flexibly determine the time length of the first time unit based on at least one of the number of time - domain resource units, SCS or target parameters included in the second time unit, so as to meet the requirements of more devices or services.

[0112] As an optional embodiment, the first time unit is an OFDM symbol including a Cyclic Prefix (CP); or

[0113] The first time unit is an OFDM symbol without CP; or

[0114] The first time unit is multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0115] Among them, when the first time unit is an OFDM symbol including CP, it can include two parts: a CP part and a modulation symbol in each first time unit. In this way, the inter - symbol interference can be reduced through the CP part.

[0116] When the first time unit is an OFDM symbol without CP, it can achieve not adding CP to transmit more data and improve the transmission performance.

[0117] Among them, the smallest time unit in different communication systems can be different, and the smallest time unit in each communication system can be determined by the protocol or configured by the network side.

[0118] Since the first time unit is composed of multiple third time units, the first time unit can be determined based on the minimum time in the communication system, making it easier for the target signal to align with the time-domain resource units in the OFDM system.

[0119] Optionally, the first time unit is N6 third time units, and the N6 is determined according to at least one of the following:

[0120] A first value, κ, SCS, a target parameter, a protocol convention, a network-side device configuration;

[0121] Among them, the first value is an integer greater than 1 stipulated by the protocol or configured by the network-side device;

[0122] κ is an integer greater than 1, or κ is the ratio of the minimum time units in two different communication systems;

[0123] The target parameter is a parameter associated with SCS, or the target parameter is a parameter stipulated by the protocol or configured by the network-side device.

[0124] Among them, the above first value and κ can be values stipulated by the protocol or configured by the network side. For example, the above first value can be 2048, or 1024 or 4096, etc., and the above κ can be 64 or 32 or 128, etc. For the corresponding description of the above target parameter, refer to the corresponding description in the above embodiments, and details are not elaborated here.

[0125] The above κ being the ratio of the minimum time units in two different communication systems can be understood as the multiple of the minimum time units in two different communication systems. For example, for 4G and 5G, the above κ is equal to 64, or the above κ represents the multiple of the minimum time units of 5G and 6G.

[0126] In this embodiment, it can be realized that the number of third time units included in the first time unit is determined based on at least one of the above first value, κ, SCS, and target parameter, so as to flexibly configure the duration of the first time unit.

[0127] In some embodiments, the above N6 = 2048κ·2 -μ , or N6 = 2048·2 -μ ,

[0128] Among them, μ is the target parameter.

[0129] Taking the above third time unit as T c OR T s as an example, the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s, where:

[0130] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0131] where κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4,096.

[0132] where the first time unit is 2048κ·2 -μ ·T c or 2048·2 -μ ·T s can make the target signal more accurately align with the boundary of the time domain resource unit of the OFDM system.

[0133] The above protocol convention or network side device configuration can be that the above N6 can be directly agreed by the protocol or configured by the network side device.

[0134] As an optional implementation manner, the first time unit includes M1 modulation symbols, and M1 is a positive integer.

[0135] where the above modulation symbols can include at least one of the following:

[0136] OOK symbols, Amplitude-shift keying (ASK) symbols, Frequency-shift keying (FSK) symbols, Phase Shift Keying (PSK) symbols, Minimum Frequency Shift Keying (MSK) symbols.

[0137] In some implementation manners, the above M1 can be agreed by the protocol or configured by the network side, or M1 = 2 p , where p is an integer greater than or equal to 0.

[0138] In this implementation manner, since the first time unit includes M1 modulation symbols, it can be realized that no CP is carried within the first time unit, enabling the first device to send more data to improve the transmission performance.

[0139] In one embodiment, the first device may use an OFDM generator to generate a target signal (e.g., an AIoT downlink signal). Specifically, it may generate an OOK signal. Since the OOK signal does not require adding a CP to eliminate inter-symbol interference, a reasonable design is that the first device uses an OFDM generator to generate a target signal without adding a CP. At this time, the basic time unit for AIoT transmission is the first time unit, which may be, for example, a part of an OFDM symbol (excluding the CP), such as 2048κ·2 -μ ·T c . Then, for different SCSs, the number of time slots in each subframe, the number of time slots in each frame, the number of first resource units in each time slot, and the number of first time units in each subframe are as shown in Table 1 below. The first time unit may be specifically as Figure 3 shown:

[0140] Table 1:

[0141]

[0142] Generating the target signal in the above manner can achieve alignment with the time slot boundary of the OFDM signal, and no cyclic prefix is inserted during signal generation, improving resource utilization. Moreover, when the receiving device receives the signal, it does not need to process the cyclic prefix.

[0143] As an optional implementation, the first time unit includes a first part and a second part. The first part is the CP part, and the second part is M2 modulated symbols, where M2 is a positive integer.

[0144] Among them, the above modulated symbols may include at least one of the following:

[0145] OOK symbol, ASK symbol, FSK symbol, PSK symbol, MSK symbol.

[0146] In some embodiments, the above M2 may be agreed upon by the protocol or configured by the network side, or M2 = 2 p , where p is an integer greater than or equal to 0, and M2 and the above M1 may be the same or different.

[0147] In some embodiments, the above first part may be before the second part, or the second part may be before the first part.

[0148] In some embodiments, the above first part may be the same as the modulated symbols within the first T time length of the second part, or the same as the modulated symbols within the last T time length of the second part.

[0149] The above-mentioned first time unit includes a first part and a second part, which can be used to transmit CP within the first time unit to reduce interference between time units.

[0150] Optionally, the time length of the second part is equal to a plurality of third time units, and the third time unit is the smallest time unit in the communication system. For example, the second time length occupied by the second part can be 2048κ·2 -μ ·T c Or 2048·2 -μ ·T s .

[0151] Optionally, within a time domain resource range, the time length of the first part within the first time unit at the target position is greater than the time length of the first part within the first time unit at other positions.

[0152] The above-mentioned time domain resource range can be one or more frames, half-frames, sub-frames or time slots.

[0153] The above-mentioned target position can be agreed upon by the protocol or configured by the network side. For example, the first time unit at the above-mentioned target position includes at least one of the following:

[0154] The first first time unit within the time domain resource range;

[0155] The first time unit with an index or serial number of 7*2 μ Or 7*2 μ +1, where μ is a target parameter, the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network side device.

[0156] When the index or serial number starts from 0, the above-mentioned first time unit is the first time unit with an index or serial number of 0 or 7*2 μ ; when the index or serial number starts from 1, the above-mentioned first time unit is the first time unit with an index or serial number of 1 or 7*2 μ +1.

[0157] The time length of the first part within the first time unit at the above-mentioned target position being greater than the time length of the first part within the first time unit at other positions can be that the time length of the first part within the first time unit at the target position is a multiple of the time length of the first part within the first time unit at other positions, or the number of sampling points of the first part within the first time unit at the target position is more than the number of sampling points of the first part within the first time unit at other positions.

[0158] For example, the first time length T occupied by the above first part can be T1 or T2. Among them, the time length of the first part within the first time unit at the target position is denoted as T1, and the time length of the first part within the first time unit at other positions is denoted as T2. Within one subframe (1 ms), the time length of the first part within the 0th and the 7*2 μ nd first time units is T1, and the time length of the first part within the remaining first time units is T2, where T1 = T2 * (1 + 16 / 144 * 2 -μ ), or the number of sampling points of T1 is 16κ more than that of T2.

[0159] In the above embodiment, since the time length of the first part within the first time unit at the target position is greater than the time length of the first part within the first time unit at other positions within one time domain resource range, this can make the target signal easier to align with the time domain resource unit of the OFDM system.

[0160] In one embodiment, if the first time unit (or referred to as the basic time unit) for AIoT transmission is one OFDM symbol (including the CP length), then the generated target signal (such as the AIoT signal) includes two parts, namely the CP part and the modulation symbol, within each first time unit. Among them, the length T of the CP part is variable and is determined according to the position k of the first time unit. For example, within one subframe (1 ms), it includes 0, 1, 2,..., L first time units. For the l = 0th and l = 7*2 μ nd first time units, T = T1, and for the l ≠ 0th and l ≠ 7*2 μ nd first time units, T = T2, where T1 = T2 * (1 + 16 / 144 * 2 -μ ), for example, T1 = (144κ·2 -μ + 16κ)T c , T2 = (144κ·2 -μ )T c . The first time unit can be specifically as Figure 4 shown. Among them, the green cyclic prefix represents the cyclic prefix of the first time unit at the target position, and the red cyclic prefix represents the cyclic prefix of the first time unit at other positions.

[0161] Through Figure 4 it can be seen that inserting the cyclic prefix for the above target signal can achieve alignment with the symbol boundary of the OFDM signal. In addition, for the first device being a network - side device, it can reuse the target signal with CP added by the OFDM generator (OFDM generator) as much as possible to reduce the complexity of the network - side device.

[0162] As an optional implementation manner, the target first time unit is the first time unit with index or serial number N within the second time unit, and the value of N is determined by one of the following methods:

[0163] Agreement by protocol, determined by the first device, determined by the second device, where the second device is the receiving device of the target signal.

[0164] The above determination by the first device can be configuration or indication by the first device, and the determination by the second device can be configuration or indication by the second device.

[0165] The above target first time unit can also be referred to as the start of a specific first time unit for transmission. The first time unit with index or serial number N can be referred to as the start of the Nth first time unit of the second time unit for transmission.

[0166] Since the target signal starts to be transmitted from the first time unit with index or serial number N, the second device can start receiving from this first time unit, enabling the second device to more reliably and successfully receive the target signal. For example: in the case where J is equal to 14 or the first time unit includes a CP part, the start of the Nth first time unit for transmission can enable the second device to accurately know which CP length to use for detection, so as to improve the transmission reliability of the target signal. For example: if the first device transmits 10 OFDM symbols starting from the 1st OFDM symbol and transmits 10 OFDM symbols starting from the 3rd OFDM symbol, the total time lengths are different, and the positions of the symbols with lengths T1 and T2 are also different. Therefore, the first device starting to transmit from the target first time unit can avoid this situation, enabling the second device to more reliably receive the target signal.

[0167] As an optional implementation manner, the information carried by the target signal includes at least one of the following:

[0168] Control information of IoT devices;

[0169] Data information of IoT devices;

[0170] Control information of LP WUR devices;

[0171] Data information of LP WUR devices; [[ID=z29]]

[0172] [[ID=z30]]Wake-up indication information; [[ID=z31]] [[ID=z32]]

[0173] [[ID=z33]]Control information for whether to enable the discontinuous reception DRX OnDurationrationTimer; [[ID=z34]] [[ID=z35]]

[0174] Control information for indicating switching of Physical Downlink Control Channel (PDCCH) monitoring parameters;

[0175] Synchronization signal.

[0176] The control information of the above IoT device or LP WUR device can be control information from the IoT device or LP WUR device or control information for controlling the IoT device or LP WUR device. The data information of the above IoT device or LP WUR device can be data information from the IoT device or LP WUR device, or data information sent to the IoT device or LP WUR device.

[0177] The above wake-up indication information can be used to indicate the terminal to page the PDCCH or the paging early indication (PEI) PDCCH.

[0178] The above synchronization signal can be used by the IoT device or the terminal device to synchronize or measure using a low-power device.

[0179] In the above embodiments, it is possible to send the above at least one piece of information based on the first time unit, thereby improving the transmission performance of the first device.

[0180] In an embodiment of the present application, a first device generates a target signal, and the target signal occupies at least one first time unit; wherein, a second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an OFDM system; the first device starts to send the target signal from a target first time unit in the second time unit. Since the second time unit includes a time domain resource unit in the OFDM system and the second time unit includes a plurality of first time units, starting to send the target signal from the target first time unit in the second time unit can make the target signal more easily aligned with the time domain resource unit in the OFDM system, so that the frame structure design of the OFDM system can be reused as much as possible, reducing the implementation complexity of the device.

[0181] Please refer to Figure 5 , Figure 5 is a flowchart of a signal receiving method provided by an embodiment of the present application. As Figure 5 shown, it includes the following steps:

[0182] Step 501, a second device receives a target signal;

[0183] Among them, the target signal occupies at least one first time unit, and a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an OFDM system.

[0184] Among them, the second device may be a terminal or a network-side device.

[0185] The second device receiving the target signal includes at least one of the following:

[0186] The second device receives the target signal according to the first time unit as the target time unit length, and the target time unit length is the actual time length of the first time unit, or the target time unit length is a time unit length determined by the second device according to the length of the second time unit and the number of the first time units in the second time unit;

[0187] The second device receives the target signal with the starting point of the target signal as the starting point of the second time unit.

[0188] Among them, the actual time length of the first time unit may be agreed upon by a protocol or configured by a first device or a second device, etc.

[0189] For example, in Figure 2 the embodiment shown where J is equal to 15, the above target time unit length is the actual first time unit length, or in Figure 2 the embodiment shown where J is equal to 14, the above target time unit length is not the actual first time unit length, and may be a time unit length determined by the second device according to the second time unit length and the number of the first time units in the second time unit, so that the second device can receive the target signal based on a length assumption, reducing the receiving complexity of the second device.

[0190] In some embodiments, the second device may also start receiving the target signal from the target first time unit in the second time unit, where the target first time unit refers to Figure 2 the corresponding description of the embodiment shown, which will not be elaborated here.

[0191] Optionally, the second time unit includes one of the following:

[0192] One or more frames;

[0193] One or more half-frames;

[0194] One or more sub-frames;

[0195] One or more time slots;

[0196] Target time units of a target duration.

[0197] Optionally, the second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0198] The number of time-domain resource units in the OFDM system included in the second time unit;

[0199] Subcarrier spacing SCS;

[0200] A target parameter, where the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network-side device.

[0201] Optionally, when the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0202] When the second time unit is N2 subframes, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0203] When the second time unit is N3 half-frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0204] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0205] When the second time unit is N5 target time units of a target duration, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0206] Where J is a positive integer greater than 1 and μ is the target parameter.

[0207] Optionally, J is equal to 15 or 14; or,

[0208] 2 μ = SCS / 15kHz.

[0209] Optionally, the first time unit is an OFDM symbol including a cyclic prefix CP; or

[0210] The first time unit is an OFDM symbol without CP; or

[0211] The first time unit is multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0212] Optionally, the first time unit is N6 third time units, and the N6 is determined according to at least one of the following:

[0213] A first numerical value, κ, SCS, a target parameter, a protocol convention, network-side device configuration;

[0214] Wherein, the first numerical value is an integer greater than 1 agreed by the protocol or configured by the network-side device;

[0215] κ is an integer greater than 1, or the κ is a ratio of the minimum time units in two different communication systems;

[0216] The target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed by the protocol or configured by the network-side device.

[0217] Optionally, N6 = 2048κ·2 -μ or N6 = 2048·2 -μ ,

[0218] Wherein, the μ is the target parameter.

[0219] Optionally, the third time unit is T c or T s , and the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s , wherein:

[0220] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0221] Wherein, κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096.

[0222] Optionally, the first time unit includes M1 modulation symbols, and M1 is a positive integer; or

[0223] The first time unit includes a first part and a second part. The first part is the CP part, and the second part is M2 modulation symbols, where M2 is a positive integer.

[0224] Optionally, within a time domain resource range, the time length of the first part in the first time unit at the target position is greater than the time length of the first part in the first time unit at other positions.

[0225] In this embodiment, the second device can receive the target signal such that the length of the first part of the first first time unit per X first time units is T1, and the length of the first part of other first time units is T2, where T1 is the time length of the first part in the first time unit at the target position, and T2 is the time length of the first part in the first time unit at other positions.

[0226] Optionally, the first time unit at the target position includes at least one of the following:

[0227] The first first time unit within the time domain resource range;

[0228] The first time unit with an index or serial number of 7*2 μ or 7*2 μ +1, where μ is a target parameter, the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network side device.

[0229] Optionally, the time length of the second part is equal to multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0230] Optionally, the information carried by the target signal includes at least one of the following:

[0231] Control information of an Internet of Things (IoT) device;

[0232] Data information of an IoT device;

[0233] Control information of a low-power wide-area (LP WUR) device;

[0234] Data information of a LP WUR device;

[0235] Wake-up indication information;

[0236] Control information for indicating whether a discontinuous reception (DRX) duration timer is enabled;

[0237] Control information for indicating parameters for monitoring a physical downlink control channel (PDCCH);

[0238] Synchronization signal.

[0239] It should be noted that, as the implementation manner of the second device corresponding to the embodiment shown in Figure 2 , the specific implementation manner can be referred to the relevant description of the embodiment shown in Figure 2 . To avoid repeated description, this embodiment will not be elaborated herein.

[0240] In the signal sending method provided by the embodiment of the present application, the execution subject may be a signal sending device. In the embodiment of the present application, taking the signal sending device as an example to execute the signal sending method, the signal sending device provided by the embodiment of the present application is described.

[0241] In the signal receiving method provided by the embodiment of the present application, the execution subject may be a signal receiving device. In the embodiment of the present application, taking the signal receiving device as an example to execute the signal receiving method, the signal receiving device provided by the embodiment of the present application is described.

[0242] Please refer to Figure 6 , Figure 6 which is the structure diagram of a signal sending device provided by the embodiment of the present application. As shown in Figure 6 , the signal sending device 600 includes:

[0243] A generating module 601, configured to generate a target signal, and the target signal occupies at least one first time unit; wherein, a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system;

[0244] A sending module 602, configured to send the target signal starting from a target first time unit in the second time unit.

[0245] Optionally, the second time unit includes one of the following:

[0246] One or more frames;

[0247] One or more half-frames;

[0248] One or more sub-frames;

[0249] One or more time slots;

[0250] Target time units with a target duration.

[0251] Optionally, the second time unit includes X of the first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0252] The number of time domain resource units in the OFDM system included in the second time unit;

[0253] Sub - carrier spacing SCS;

[0254] A target parameter, where the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network - side device.

[0255] Optionally, when the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0256] When the second time unit is N2 sub - frames, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0257] When the second time unit is N3 half - frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0258] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0259] When the second time unit is N5 target time units of a target duration, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0260] Where J is a positive integer greater than 1 and μ is the target parameter.

[0261] Optionally, J is equal to 15 or 14; or,

[0262] 2 μ = SCS / 15kHz.

[0263] Optionally, the first time unit is an OFDM symbol including a cyclic prefix CP; or

[0264] The first time unit is an OFDM symbol without CP; or

[0265] The first time unit is multiple third - time units, and the third - time unit is the smallest time unit in the communication system.

[0266] Optionally, the first time unit is N6 third - time units, and N6 is determined according to at least one of the following:

[0267] A first value, κ, SCS, target parameter, protocol agreement, network - side device configuration;

[0268] Wherein, the first value is an integer greater than 1 agreed upon by the protocol or configured by the network-side device;

[0269] κ is an integer greater than 1, or κ is the ratio of the minimum time units in two different communication systems;

[0270] The target parameter is a parameter associated with the SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network-side device.

[0271] Optionally, N6 = 2048κ·2 -μ , or N6 = 2048·2 -μ ,

[0272] Wherein, μ is the target parameter.

[0273] Optionally, the third time unit is T c or T s , the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s , where:

[0274] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0275] Wherein, κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096.

[0276] Optionally, the first time unit includes M1 modulation symbols, where M1 is a positive integer; or

[0277] The first time unit includes a first part and a second part, the first part is the CP part, and the second part is M2 modulation symbols, where M2 is a positive integer.

[0278] Optionally, within the first time unit at the target position within a time-domain resource range, the time length of the first part is greater than the time length of the first part at other positions within the first time unit.

[0279] Optionally, the first time unit of the target position includes at least one of the following:

[0280] The first time unit within the time domain resource range;

[0281] The first time unit with an index or serial number of 7*μ μ or 7*μ μ +1 within the time domain resource range, where μ is a target parameter, the target parameter is a parameter associated with the SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network side device.

[0282] Optionally, the time length of the second part is equal to multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0283] Optionally, the target first time unit is the first time unit with an index or serial number of N within the second time unit, and the value of N is determined by one of the following methods:

[0284] Agreed upon by the protocol, determined by the first device, or determined by the second device, where the second device is the receiving device of the target signal.

[0285] Optionally, the information carried by the target signal includes at least one of the following:

[0286] Control information of an Internet of Things (IoT) device;

[0287] Data information of an IoT device;

[0288] Control information of a low-power wide-area (LP WAN) device;

[0289] Data information of a LP WAN device;

[0290] Wake-up indication information;

[0291] Control information for indicating whether to start a discontinuous reception (DRX) duration timer;

[0292] Control information for indicating parameters for monitoring a physical downlink control channel (PDCCH);

[0293] Synchronization signal.

[0294] The above signal sending device can make the signal more easily aligned with the time domain resource unit in the OFDM system.

[0295] In the embodiments of the present application, the signal sending device may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. For example, the electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminals listed in the embodiments of the present application, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0296] The signal sending device provided by the embodiments of the present application can implement Figure 2 each process implemented by the method embodiments shown and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0297] Please refer to Figure 7 , [[ID=~11]] Figure 7 which is a structural diagram of a signal receiving device provided by the embodiments of the present application. As shown in Figure 7 , the signal receiving device 700 includes:

[0298] A receiving module 701, configured to receive a target signal;

[0299] Wherein, the target signal occupies at least one first time unit, and a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an Orthogonal Frequency Division Multiplexing (OFDM) system.

[0300] Optionally, the receiving module 701 is used for at least one of the following:

[0301] Receiving the target signal according to the first time unit as the target time unit length, where the target time unit length is the actual time length of the first time unit, or the target time unit length is a time unit length determined by the second device according to the length of the second time unit and the number of the first time units in the second time unit;

[0302] Receiving the target signal according to the starting point of the target signal as the starting point of the second time unit.

[0303] Optionally, the second time unit includes one of the following:

[0304] One or more frames;

[0305] One or more half-frames;

[0306] One or more sub-frames;

[0307] One or more time slots;

[0308] Target time units of a target duration.

[0309] Optionally, the second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0310] The number of time-domain resource units in the OFDM system included in the second time unit;

[0311] Subcarrier spacing SCS;

[0312] A target parameter, where the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network-side device.

[0313] Optionally, when the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0314] When the second time unit is N2 subframes, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0315] When the second time unit is N3 half-frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0316] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0317] When the second time unit is N5 target time units of a target duration, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0318] Where J is a positive integer greater than 1 and μ is the target parameter.

[0319] Optionally, J is equal to 15 or 14; or,

[0320] 2 μ = SCS / 15kHz.

[0321] Optionally, the first time unit is an OFDM symbol including a cyclic prefix CP; or

[0322] The first time unit is an OFDM symbol without CP; or

[0323] The first time unit is multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0324] Optionally, the first time unit is N6 third time units, and the N6 is determined according to at least one of the following:

[0325] A first numerical value, κ, SCS, a target parameter, a protocol convention, network-side device configuration;

[0326] Among them, the first numerical value is an integer greater than 1 agreed upon by the protocol or configured by the network-side device;

[0327] κ is an integer greater than 1, or the κ is the ratio of the minimum time units in two different communication systems;

[0328] The target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network-side device.

[0329] Optionally, N6 = 2048κ·2 -μ , or N6 = 2048·2 -μ ,

[0330] Among them, the μ is the target parameter.

[0331] Optionally, the third time unit is T c or T s , and the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s , where:

[0332] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0333] Among them, κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096.

[0334] Optionally, the first time unit includes M1 modulation symbols, and M1 is a positive integer; or

[0335] The first time unit includes a first part and a second part. The first part is the CP part, and the second part is M2 modulation symbols, where M2 is a positive integer.

[0336] Optionally, within the first time unit at the target position within a time domain resource range, the time length of the first part is greater than the time length of the first part within the first time unit at other positions.

[0337] Optionally, the first time unit at the target position includes at least one of the following:

[0338] The first first time unit within the time domain resource range;

[0339] The first time unit whose index or serial number within the time domain resource range is 7*2 μ or 7*2 μ +1, where μ is a target parameter, the target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed upon by the protocol or configured by the network-side device.

[0340] Optionally, the time length of the second part is equal to multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0341] Optionally, the information carried by the target signal includes at least one of the following:

[0342] Control information of an Internet of Things (IoT) device;

[0343] Data information of an IoT device;

[0344] Control information of a low-power wide-area (LP WUR) device;

[0345] Data information of a LP WUR device;

[0346] Wake-up indication information;

[0347] Control information for indicating whether a discontinuous reception (DRX) duration timer is enabled;

[0348] Control information for indicating parameters for monitoring a physical downlink control channel (PDCCH);

[0349] Synchronization signal.

[0350] The above signal receiving device can make the signal more easily aligned with the time domain resource unit in the OFDM system.

[0351] The signal receiving device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or a network-side device.

[0352] The signal receiving device provided in the embodiments of the present application can implement Figure 5 each process implemented by the method embodiment shown, and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0353] Optionally, as Figure 8 shown, the embodiments of the present application further provide a communication device 800, including a processor 801 and a memory 802. A program or instruction that can run on the processor 801 is stored on the memory 802. For example, when the communication device 800 is the first device, when the program or instruction is executed by the processor 801, each step of the above data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0354] The embodiments of the present application further provide a communication device, including a processor and a communication interface. The processor is used to generate a target signal, and the target signal occupies at least one first time unit. Multiple first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an OFDM system. The communication interface is used to send the target signal starting from a target first time unit in the second time unit. This communication device embodiment corresponds to the above data transmission method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this communication device embodiment, and the same technical effect can be achieved.

[0355] Specifically, Figure 9 is a schematic hardware structure diagram of a device for implementing the embodiments of the present application. The device may be the first device or the second device.

[0356] The device 900 includes but is not limited to at least some components such as a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

[0357] Those skilled in the art can understand that the device 900 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 910 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 9The device structure shown does not constitute a limitation on the device. The device may include more or fewer components than shown, or combine certain components, or have a different component arrangement, which will not be elaborated here.

[0358] It should be understood that in the embodiments of the present application, the input unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042. The graphics processing unit 9041 processes the image data of static pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. The other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, which will not be elaborated here.

[0359] In the embodiments of the present application, after receiving the downlink data from the network side device, the radio frequency unit 901 may transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 may send the uplink data to the network side device. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0360] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include volatile memory or non-volatile memory, or the memory 909 may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (Synchronous DRAM, SDRAM), a double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), an enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), a synchronous link dynamic random access memory (Synch link DRAM, SLDRAM), and a direct rambus random access memory (Direct Rambus RAM, DRRAM). The memory 909 in the embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

[0361] The processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 910 either.

[0362] In this embodiment, the above device is the first device, and specifically, the first device is taken as an example of a terminal for illustration:

[0363] The processor 910 is used to generate a target signal, and the target signal occupies at least one first time unit; among them, a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system;

[0364] The radio frequency unit 901 is configured to transmit the target signal starting from the target first time unit in the second time unit.

[0365] Optionally, the second time unit includes one of the following:

[0366] One or more frames;

[0367] One or more half - frames;

[0368] One or more sub - frames;

[0369] One or more time slots;

[0370] Target time units with a target duration.

[0371] Optionally, the second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0372] The number of time - domain resource units in the OFDM system included in the second time unit;

[0373] Sub - carrier spacing SCS;

[0374] Target parameter.

[0375] Optionally, when the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0376] When the second time unit is N2 sub - frames, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0377] When the second time unit is N3 half - frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0378] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0379] When the second time unit is N5 target time units with a target duration, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0380] Where, J is a positive integer greater than 1, and μ is the target parameter.

[0381] Optionally, J is equal to 15 or 14; or,

[0382] 2 μ = SCS / 15 kHz.

[0383] Optionally, the first time unit is an OFDM symbol including a cyclic prefix CP; or

[0384] The first time unit is an OFDM symbol without CP; or

[0385] The first time unit is multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0386] Optionally, the first time unit is N6 third time units, and the N6 is determined according to at least one of the following:

[0387] The first value, κ, SCS, the target parameter, protocol convention, network side device configuration;

[0388] Among them, the first value is an integer greater than 1 by protocol convention or network side device configuration;

[0389] κ is an integer greater than 1, or the κ is the ratio of the smallest time units in two different communication systems;

[0390] The target parameter is a parameter associated with SCS, or the target parameter is a parameter by protocol convention or network side device configuration.

[0391] Optionally, N6 = 2048κ·2 -μ , or N6 = 2048·2 -μ ,

[0392] Among them, the μ is the target parameter.

[0393] Optionally, the third time unit is T c or T s , and the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s , where:

[0394] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0395] Among them, κ = T s / T c= 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096。

[0396] Optionally, the first time unit includes M1 modulation symbols, where M1 is a positive integer; or

[0397] the first time unit includes a first part and a second part, the first part is the CP part, and the second part is M2 modulation symbols, where M2 is a positive integer.

[0398] Optionally, within the first time unit at the target position within a time domain resource range, the time length of the first part is greater than the time length of the first part within the first time unit at other positions.

[0399] Optionally, the first time unit at the target position includes at least one of the following:

[0400] the first first time unit within the time domain resource range;

[0401] the first time unit within the time domain resource range with an index or serial number of 7*2 μ or 7*2 μ +1, where μ is a target parameter.

[0402] Optionally, the time length of the second part is equal to multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0403] Optionally, the target first time unit is the first time unit within the second time unit with an index or serial number of N, and the value of N is determined by one of the following methods:

[0404] protocol agreement, determined by the first device, determined by the second device, and the second device is the receiving device of the target signal.

[0405] Optionally, the information carried by the target signal includes at least one of the following:

[0406] control information of Internet of Things (IoT) devices;

[0407] data information of IoT devices;

[0408] control information of LP WUR devices;

[0409] data information of LP WUR devices;

[0410] Wake-up indication information;

[0411] Control information for indicating whether a discontinuous reception (DRX) duration timer is enabled;

[0412] Control information for indicating parameters for monitoring a physical downlink control channel (PDCCH);

[0413] Synchronization signal.

[0414] The above device can make it easier to align signals with time-domain resource units in an OFDM system.

[0415] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the above data transmission method, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0416] It should be noted that the above device can also implement Figure 5 the steps in the method shown in Figure 7 or can implement the methods executed by the respective modules shown in

[0417] This embodiment of the present application further provides a device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method embodiment as shown in Figure 4 This device embodiment on the network side corresponds to the above data transmission method embodiment. The various implementation processes and implementation manners of the above method embodiment can all be applied to this device embodiment, and the same technical effects can be achieved.

[0418] This embodiment of the present application further provides a device, including a processor and a communication interface. The communication interface is configured to receive a target signal. The target signal occupies at least one first time unit, and a second time unit includes multiple of the first time units. The second time unit includes time-domain resource units in an OFDM system.

[0419] Specifically, this embodiment of the present application further provides a device. This device can be a first device or a second device. As shown in Figure 10 the device 1000 includes: an antenna 101, a radio frequency device 102, a baseband device 103, a processor 104, and a memory 105. The antenna 101 is connected to the radio frequency device 102. In the uplink direction, the radio frequency device 102 receives information through the antenna 101 and sends the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes the information to be sent and sends it to the radio frequency device 102. The radio frequency device 102 processes the received information and then sends it out through the antenna 101.

[0420] In the above embodiments, the signal receiving method can be implemented in the baseband device 103, which includes a baseband processor.

[0421] The baseband device 103 may, for example, include at least one baseband board, on which a plurality of chips are provided, such as Figure 10 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 105 through a bus interface to call the program in the memory 105 and execute the network device operations shown in the above method embodiments.

[0422] The device may further include a network interface 106, which is, for example, a Common Public Radio Interface (CPRI).

[0423] Specifically, the device 1000 in the embodiments of the present application further includes: instructions or programs stored on the memory 105 and executable on the processor 104. The processor 104 calls the instructions or programs in the memory 105 to execute Figure 7 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, it will not be elaborated here.

[0424] In this embodiment, the above device is a second device. Specifically, an example is given with the second device being a network-side device:

[0425] Among them, the radio frequency device 102 is used to receive a target signal;

[0426] Among them, the target signal occupies at least one first time unit, and a plurality of the first time units are included in a second time unit, and the second time unit includes a time domain resource unit in an OFDM system.

[0427] Optionally, the receiving of the target signal includes at least one of the following:

[0428] Receiving the target signal according to the first time unit as the target time unit length, where the target time unit length is the actual time length of the first time unit, or the target time unit length is a time unit length determined by the second device according to the length of the second time unit and the number of the first time units in the second time unit;

[0429] Receiving the target signal according to the starting point of the target signal as the starting point of the second time unit.

[0430] Among them, the actual time length of the above first time unit may be agreed upon by the protocol or configured by the first device or the second device, etc.

[0431] Optionally, the second time unit includes one of the following:

[0432] One or more frames;

[0433] One or more half - frames;

[0434] One or more sub - frames;

[0435] One or more time slots;

[0436] Target time units of a target duration.

[0437] Optionally, the second time unit includes X of the first time units, where X is an integer greater than 1, and X is associated with at least one of the following:

[0438] The number of time - domain resource units in the OFDM system included in the second time unit;

[0439] Sub - carrier spacing SCS;

[0440] Target parameter.

[0441] Optionally, when the second time unit is N1 time slots, X = J * N1, where N1 is a positive integer; or,

[0442] When the second time unit is N2 sub - frames, X = J * 2 μ * N2, where N2 is a positive integer; or,

[0443] When the second time unit is N3 half - frames, X = 5 * J * 2 μ * N3, where N3 is a positive integer; or,

[0444] When the second time unit is N4 frames, X = 10 * J * 2 μ * N4, where N4 is a positive integer; or,

[0445] When the second time unit is N5 target time units of a target duration, X = Y / 1 * J * 2 μ * N5, where Y represents the target duration and N5 is a positive integer;

[0446] Where J is a positive integer greater than 1 and μ is the target parameter.

[0447] Optionally, J is equal to 15 or 14; or,

[0448] 2 μ = SCS / 15kHz.

[0449] Optionally, the first time unit is an OFDM symbol including a cyclic prefix CP; or

[0450] The first time unit is an OFDM symbol without CP; or

[0451] The first time unit is multiple third time units, and the third time unit is the smallest time unit in the communication system.

[0452] Optionally, the first time unit is N6 third time units, and the N6 is determined according to at least one of the following:

[0453] The first value, κ, SCS, target parameter, protocol convention, network side device configuration;

[0454] Among them, the first value is an integer greater than 1 agreed by the protocol or configured by the network side device;

[0455] κ is an integer greater than 1, or the κ is the ratio of the smallest time units in two different communication systems;

[0456] The target parameter is a parameter associated with SCS, or the target parameter is a parameter agreed by the protocol or configured by the network side device.

[0457] Optionally, N6 = 2048κ·2 -μ , or N6 = 2048·2 -μ ,

[0458] Among them, the μ is the target parameter.

[0459] Optionally, the third time unit is T c or T s , and the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s , where:

[0460] T s = 1 / (Δf ref ·N f,ref ), T c = 1 / (Δf max ·N f )

[0461] Among them, κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096.

[0462] Optionally, the first time unit includes M1 modulation symbols, where M1 is a positive integer; or

[0463] The first time unit includes a first part and a second part, the first part being the CP part, and the second part being M2 modulation symbols, where M2 is a positive integer.

[0464] Optionally, within the first time unit at the target position within a time domain resource range, the time length of the first part is greater than the time length of the first part within the first time unit at other positions.

[0465] Optionally, the first time unit at the target position includes at least one of the following:

[0466] The first first time unit within the time domain resource range;

[0467] The first time unit with an index or serial number of 7*2 μ or 7*2 μ +1, where μ is a target parameter.

[0468] Optionally, the time length of the second part is equal to a plurality of third time units, and the third time unit is the smallest time unit in the communication system.

[0469] Optionally, the information carried by the target signal includes at least one of the following:

[0470] Control information of an Internet of Things (IoT) device;

[0471] Data information of an IoT device;

[0472] Control information of a low-power wide-area (LP WAN) device;

[0473] Data information of a LP WAN device;

[0474] Wake-up indication information;

[0475] Control information for indicating whether a discontinuous reception (DRX) duration timer is enabled;

[0476] Control information for indicating a physical downlink control channel (PDCCH) monitoring parameter switch;

[0477] Synchronization signal.

[0478] The above device can make the signal more easily aligned with the time domain resource unit in the OFDM system.

[0479] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment can refer to the relevant descriptions of the above method embodiments, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0480] It should be noted that the above device can also implement Figure 2 the steps in the method shown, or can implement Figure 6 the methods executed by the respective modules shown.

[0481] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0482] Among them, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical discs, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0483] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0484] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0485] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the above signal sending method or signal receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0486] The embodiment of the present application further provides a wireless communication system, including: a first device and a second device. The first device can be used to execute the steps of the signal sending method provided in the embodiment of the present application, and the second device can be used to execute the steps of the signal receiving method provided in the embodiment of the present application.

[0487] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0488] Through the description of the above embodiments, those skilled in the art can clearly understand that the above example methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, they can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0489] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A signal sending method, characterized in that: include: The first device generates a target signal, where the target signal occupies at least one first time unit; wherein a second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system; The first device sends the target signal starting from a target first time unit in the second time unit.

2. The method according to claim 1, wherein The second time unit includes the following: One or more frames; One or more half frames; one or more subframes; one or more time slots; The target time unit of the target duration.

3. The method according to claim 1 or 2, wherein: The second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following: The number of time domain resource units in the OFDM system included in the second time unit; Subcarrier spacing SCS; Target parameter, the target parameter is a parameter associated with the SCS, or the target parameter is a parameter agreed upon in the protocol or configured by the network side device.

4. The method according to claim 3, wherein In the case where the second time unit is N1 time slots, X=J*N1, where N1 is a positive integer; or When the second time unit is N2 subframes, X=J*2 μ *N2, where N2 is a positive integer; or When the second time unit is N3 half frames, X=5*J*2 μ *N3, where N3 is a positive integer; or When the second time unit is N4 frames, X=10*J*2 μ *N4, where N4 is a positive integer; or In the case where the second time unit is a target time unit of N5 target duration, X=Y / 1*J*2 μ *N5, where Y represents the target duration and N5 is a positive integer; Wherein, J is a positive integer greater than 1, and μ is the target parameter.

5. The method according to claim 4, wherein Said J is equal to 15 or 14; or, 2 μ =SCS / 15kHz。 6. The method according to claim 1 or 2, wherein: The first time unit is an OFDM symbol including a cyclic prefix CP; or The first time unit is an OFDM symbol that does not include a CP; or The first time unit is a plurality of third time units, and the third time unit is a minimum time unit in the communication system.

7. The method according to claim 6, wherein The first time unit is N6 third time units, where N6 is determined according to at least one of the following: The first value,κ,SCS, is the target parameter, the protocol agreement, and the network side device configuration; The first value is an integer greater than 1 agreed upon by the protocol or configured by the network side device; κ is an integer greater than 1, or κ is a ratio of minimum time units in two different communication systems; The target parameter is a parameter associated with the SCS, or the target parameter is a parameter agreed upon in the protocol or configured by the network side device.

8. The method according to claim 7, wherein N6=2048κ·2 -μ , or N6=2048·2 -μ , Wherein, μ is the target parameter.

9. The method according to claim 8, wherein The third time unit is T c or T s , the first time unit is 2048κ·2 -μ ·T c , or the first time unit is 2048·2 -μ ·T s ,in: T s =1 / (Δf ref ·N f,ref ),Tc=1 / (Δf max ·N f ) where κ = T s / T c = 64, Δf ref = 15·10 3 Hz, N f,ref = 2048, Δf max = 480·10 3 , N f = 4096.

10. The method according to any one of claims 1 to 9, characterized in that The first time unit includes M1 modulation symbols, where M1 is a positive integer; or The first time unit includes a first part and a second part, the first part is a CP part, the second part is M2 modulation symbols, and M2 is a positive integer.

11. The method according to claim 10, wherein Within a time domain resource range, a time length of the first part in the first time unit at a target location is greater than a time length of the first part in the first time unit at other locations.

12. The method according to claim 11, wherein The first time unit of the target location includes at least one of the following: The first first time unit within the time domain resource range; The index or sequence number within the time domain resource range is 7*2 μ or 7*2 μ +1, the first time unit, the μ is the target parameter, the target parameter is the parameter associated with the SCS, or the target parameter is the parameter agreed upon in the protocol or configured by the network side device.

13. The method according to any one of claims 10 to 12, characterized in that The time length of the second part is equal to a plurality of third time units, and the third time unit is a minimum time unit in the communication system.

14. The method according to any one of claims 1 to 13, characterized in that The target first time unit is the first time unit with an index or sequence number N within the second time unit, where the value of N is determined by one of the following methods: The protocol stipulates, the first device determines, and the second device determines that the second device is the receiving device of the target signal.

15. The method according to any one of claims 1 to 14, characterized in that The information carried by the target signal includes at least one of the following: Control information of IoT devices; Data information of IoT devices; Control information of low power wake-up receiver LP WUR device; Data information of LP WUR equipment; Wake-up instruction information; Control information used to indicate whether the discontinuous reception (DRX) duration timer is turned on; Control information used to instruct switching of physical downlink control channel PDCCH monitoring parameters; Synchronization signal.

16. A signal receiving method, characterized in that: include: The second device receives the target signal; The target signal occupies at least one first time unit, the second time unit includes multiple first time units, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system.

17. The method according to claim 16, wherein The receiving of the target signal by the second device includes at least one of the following: The second device receives the target signal according to the first time unit as a target time unit length, where the target time unit length is an actual time length of the first time unit, or the target time unit length is a time unit length determined by the second device based on the length of the second time unit and the number of the first time units in the second time unit; The second device receives the target signal according to the starting point of the target signal as the starting point of the second time unit.

18. The method according to claim 16 or 17, wherein: The second time unit includes the following: One or more frames; One or more half frames; one or more subframes; one or more time slots; The target time unit of the target duration.

19. The method according to any one of claims 16 to 18, characterized in that The second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following: The number of time domain resource units in the OFDM system included in the second time unit; Subcarrier spacing SCS; Target parameter, the target parameter is a parameter associated with the SCS, or the target parameter is a parameter agreed upon in the protocol or configured by the network side device.

20. The method according to any one of claims 16 to 18, characterized in that The first time unit is an OFDM symbol including a cyclic prefix CP; or The first time unit is an OFDM symbol that does not include a CP; or The first time unit is a plurality of third time units, and the third time unit is a minimum time unit in the communication system.

21. The method according to any one of claims 16 to 20, characterized in that The first time unit includes M1 modulation symbols, where M1 is a positive integer; or The first time unit includes a first part and a second part, the first part is a CP part, the second part is M2 modulation symbols, and M2 is a positive integer.

22. The method according to claim 21, wherein Within a time domain resource range, a time length of the first part in the first time unit at a target location is greater than a time length of the first part in the first time unit at other locations.

23. The method according to any one of claims 16 to 22, characterized in that The information carried by the target signal includes at least one of the following: Control information of IoT devices; Data information of IoT devices; Control information of low power wake-up receiver LP WUR device; Data information of LP WUR equipment; Wake-up instruction information; Control information used to indicate whether the discontinuous reception (DRX) duration timer is turned on; Control information used to instruct switching of physical downlink control channel PDCCH monitoring parameters; Synchronization signal.

24. A signal sending device, characterized in that: include: A generating module, configured to generate a target signal, wherein the target signal occupies at least one first time unit; wherein a second time unit includes a plurality of the first time units, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system; A sending module is configured to send the target signal starting from a target first time unit in the second time unit.

25. The device according to claim 24, wherein The second time unit includes the following: One or more frames; One or more half frames; one or more subframes; one or more time slots; The target time unit of the target duration.

26. The device according to claim 24 or 25, characterized in that The second time unit includes X first time units, where X is an integer greater than 1, and X is associated with at least one of the following: The number of time domain resource units in the OFDM system included in the second time unit; Subcarrier spacing SCS; Target parameters.

27. The device according to any one of claims 24 to 26, characterized in that The first time unit includes M1 modulation symbols, where M1 is a positive integer; or The first time unit includes a first part and a second part, the first part is a CP part, the second part is M2 modulation symbols, and M2 is a positive integer.

28. A signal receiving device, characterized in that: include: A receiving module, used for receiving a target signal; The target signal occupies at least one first time unit, the second time unit includes multiple first time units, and the second time unit includes a time domain resource unit in an orthogonal frequency division multiplexing (OFDM) system.

29. The device according to claim 28, wherein The receiving module is used for at least one of the following: receiving the target signal according to the first time unit being a target time unit length, where the target time unit length is an actual time length of the first time unit, or a time unit length determined by the second device based on the length of the second time unit and the number of the first time units within the second time unit; The target signal is received with the starting point of the target signal being the starting point of the second time unit.

30. The device according to claim 28 or 29, characterized in that The second time unit includes the following: One or more frames; One or more half frames; one or more subframes; one or more time slots; The target time unit of the target duration.

31. A communication device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the signal sending method according to any one of claims 1 to 15 are implemented, or when the program or instruction is executed by the processor, the steps of the signal receiving method according to any one of claims 16 to 23 are implemented.

32. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the signal sending method according to any one of claims 1 to 15, or implements the steps of the signal receiving method according to any one of claims 16 to 23.

33. A computer program product, characterized in that The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the steps of the signal sending method according to any one of claims 1 to 15, or to implement the steps of the signal receiving method according to any one of claims 16 to 23.

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