Wireless communication method, terminal device, and network device

Abstract

A wireless communication method, a terminal device, and a network device. The wireless communication method comprises: a terminal device sending a first PPDU to a network device, the first PPDU using a first PPDU format, the first PPDU format being determined from among a plurality of PPDU formats, and the plurality of PPDU formats corresponding to different modulation schemes.

Description

Method, terminal device and network device for wireless communication TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a method, a terminal device and a network device for wireless communication. BACKGROUND

[0002] When some terminal devices (such as ambient powered (AMP) devices) send a physical layer protocol data unit (PPDU) to a network device, the PPDU is modulated by an on-off keying (OOK) modulation mode. However, such a modulation mode can result in low transmission efficiency.

[0003] SUMMARY

[0004] The present application provides a method, a terminal device and a network device for wireless communication. Each aspect of the present application is described below.

[0005] In a first aspect, a method for wireless communication is provided, comprising: sending, by a terminal device, a first PPDU to a network device, wherein the first PPDU adopts a first PPDU format; and wherein the first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes.

[0006] In a second aspect, a method for wireless communication is provided, comprising: receiving, by a network device, a first PPDU sent by a terminal device, wherein the first PPDU adopts a first PPDU format; and wherein the first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes.

[0007] In a third aspect, a terminal device is provided, comprising: a sending module configured to send a first PPDU to a network device, wherein the first PPDU adopts a first PPDU format; and wherein the first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes.

[0008] In a fourth aspect, a network device is provided, comprising: a receiving module configured to receive a first PPDU sent by a terminal device, wherein the first PPDU adopts a first PPDU format; and wherein the first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes.

[0009] In a fifth aspect, a terminal device is provided, which includes a processor, a memory, and a communication interface. The memory is configured to store one or more computer programs. The processor is configured to invoke the computer programs in the memory to cause the terminal device to perform some or all of the steps in the method of the first aspect.

[0010] In a sixth aspect, a network device is provided, which includes a processor, a memory, and a communication interface. The memory is configured to store one or more computer programs. The processor is configured to invoke the computer programs in the memory to cause the network device to perform some or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, a communication system is provided, which includes the terminal device and / or the network device described above. In another possible design, the system can further include other devices interacting with the terminal device or the network device in the solutions provided by the embodiments of the present application.

[0012] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program. The computer program causes a computer to perform some or all of the steps in the methods of the above aspects.

[0013] In a ninth aspect, a computer program product is provided, which includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause a computer to perform some or all of the steps in the methods of the above aspects. In some implementations, the computer program product can be a software installation package.

[0014] In a tenth aspect, a chip is provided, which includes a memory and a processor. The processor can invoke and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0015] In the embodiments of the present application, the first PPDU format adopted by the first PPDU sent by the terminal device is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes. Compared with the solution in which the terminal device uniformly adopts the OOK modulation mode for uplink transmission, the embodiments of the present application can provide a plurality of PPDU formats with different modulation modes, so that the PPDU format design is more flexible, thereby facilitating different terminal devices to adopt different PPDU formats (modulation modes) for uplink transmission, and optimizing the performance of the communication system. BRIEF DESCRIPTION OF DRAWINGS

[0016] FIG. 1 is an example diagram of a system architecture of a wireless communication system to which the embodiments of the present application can be applied.

[0017] FIG. 2 is another example diagram of a system architecture of a wireless communication system to which embodiments of the present application can be applied.

[0018] FIG. 3 is yet another example diagram of a system architecture of a wireless communication system to which embodiments of the present application can be applied.

[0019] FIG. 4 is an example diagram of a PPDU format according to an embodiment of the present application.

[0020] FIG. 5 is an example diagram of a PPDU format according to another embodiment of the present application.

[0021] FIG. 6 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0022] FIG. 7 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0023] FIG. 8 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0024] FIG. 9 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0025] FIG. 10 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0026] FIG. 11 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0027] FIG. 12 is an example diagram of a PPDU format according to yet another embodiment of the present application.

[0028] FIG. 13 is a flow diagram of a method of wireless communication according to an embodiment of the present application.

[0029] FIG. 14 is a diagram of a structure of a terminal device according to an embodiment of the present application.

[0030] FIG. 15 is a diagram of a structure of a network device according to an embodiment of the present application.

[0031] FIG. 16 is a diagram of a structure of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] Communication system architecture

[0033] FIG. 1 is an example diagram of a system architecture of a wireless communication system 100 to which embodiments of the present application can be applied. The wireless communication system 100 can include a network device 110 and a terminal device 120. The network device 110 can be a device that communicates with the terminal device 120. The network device 110 can provide communication coverage for a specific geographic area and can communicate with the terminal device 120 located in the coverage area.

[0034] Fig. 1 exemplarily shows one network device and two terminal devices. Optionally, the wireless communication system 100 can comprise a plurality of network devices and each network device can comprise other number of terminal devices within its coverage, which are not limited in the embodiments of the present application.

[0035] Optionally, the wireless communication system 100 can further comprise a network controller, a mobile management entity and other network entities, which are not limited in the embodiments of the present application.

[0036] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a 5th generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a wireless local area networks (WLAN), a wireless fidelity (WiFi), a high performance radio local area networks (HIPELAN), a wide area networks (WAN), etc. The technical solutions provided by the present application can also be applied to future communication systems, such as a 6th generation mobile communication system, a satellite communication system, etc.

[0037] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user apparatus. The terminal device in the embodiments of the present application can refer to a device that provides voice and / or data connectivity for a user, and can be used to connect people, things and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity, which provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and the smart home device communicate with each other without relaying the communication signals through the base station.

[0038] By way of example and not limitation, in the embodiments of the present application, the terminal device can be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing and shoes, etc. For example: smart watches or smart glasses, etc., and only focus on a certain type of application function, which needs to be used with other devices such as smart phones, such as various types of smart wristbands, smart jewelry, etc. for monitoring vital signs.

[0039] By way of example and not limitation, in embodiments of the present application, the terminal device can also be a terminal device in an internet of things (IoT) system, which is an important part of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and object-object interconnection. In embodiments of the present application, IoT technology can achieve mass connection, deep coverage and terminal power saving through, for example, narrow band (NB) technology.

[0040] By way of example and not limitation, in embodiments of the present application, the terminal device can also include intelligent printers, train detectors, gas station sensors, and the like, and the main functions include collecting data (part of the terminal device), receiving control information and downlink data of the network device, and transmitting electromagnetic waves to transmit data to the network device.

[0041] The network device in the embodiments of the present application can be a device for communicating with a terminal device, which can also be referred to as an access network device or a radio access network device, such as a network device, which can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, auxiliary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip for being disposed in the foregoing devices or apparatuses. The base station can also be a mobile switching center and a device that undertakes a base station function in device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communication, a network side device in a 6G network, a device that undertakes a base station function in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0042] The base station can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or a drone can be configured to act as a device that communicates with another base station.

[0043] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0044] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0045] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0046] In some embodiments, the terminal device in this application can also be called a station (STA), and the network device can also be called an access point (AP). For example, when the terminal device and the network device communicate based on WiFi, the terminal device and the network device can be called STA and AP, respectively. This application does not limit the names of STA and / or AP. In some scenarios, AP can be called AP STA, that is, AP can also be understood as a type of STA. In some scenarios, STA can be called non-AP STA.

[0047] In some embodiments, when the network device is an access point (AP), the network device can be a communication entity such as a communication server, router, switch, or bridge; or, the network device can be a base station, as mentioned above.

[0048] AMP devices

[0049] In cellular network systems (such as NR and 6G systems) and WiFi systems, the battery-free and low-cost nature of devices enables the low-cost, mass deployment and maintenance-free operation of devices such as IoT devices. Current standards are researching how to support AMP devices (or AMP IoT devices, AMP tags, zero-power devices, etc.) in cellular network and WiFi systems. The energy required for their operation comes from environmental energy harvesting, which can be from wireless signals, solar energy, or thermal energy. These devices are similar to passive or semi-passive devices in zero-power communication.

[0050] The 3rd Generation Partner Project (3GPP) is discussing research projects on AMP devices, broadly categorizing them into three types: Device A, Device B, and Device C, each with corresponding complexity and communication capabilities. These three types of AMP devices are described below.

[0051] Device A has no energy storage capability and cannot transmit independent signals. That is, device A communicates using backscattering transmission. Device A has the lowest complexity and power consumption, which can be as low as 1 μW, but its communication distance is limited, generally only a few meters. Device A needs a network device to provide a carrier signal for backscattering transmission.

[0052] Device B has energy storage capability and cannot transmit independent signals. That is, device B communicates using backscattering transmission and can amplify the backscattering signal using stored energy. The complexity and power consumption of device B are between those of device A and device C.

[0053] Device C has energy storage capability and can transmit independent signals. That is, device C has the ability of active transmission. Device C generally has a large-capacity capacitor to store energy from the environment, and the power consumption can support several hundred μW, which can support active signal emission and has a large communication distance. Device C does not need a network device to provide a carrier signal because it can perform active transmission.

[0054] Based on the discussion of the application scenarios of AMP devices based on 3GPP system architecture (SA) 1, AMP devices can be used in at least the following four scenarios.

[0055] Scenario 1: object identification, such as logistics, production line product management, and supply chain management.

[0056] Scenario 2: environmental monitoring, such as temperature, humidity, and harmful gas monitoring of working and natural environments.

[0057] Scenario 3: positioning, such as indoor positioning, intelligent object search, and production line object positioning.

[0058] Scenario 4: intelligent control, such as intelligent control of various appliances in smart homes (turning on / off air conditioners and adjusting temperature) and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).

[0059] In a low-power Internet of Things based on a cellular network, an AMP device can directly transceive a command, data or signal from a network device and transmit or backscatter data or a channel to the network device, as shown in FIG. 2 (denoted as a first topology). Alternatively, the AMP device can implement communication between the AMP device and the network device through an intermediate node, in which case the intermediate node transmits a command, data or signal to the AMP device, and the AMP device transmits or backscatters data or a signal to the intermediate node, as shown in FIG. 3 (denoted as a second topology).

[0060] It should be noted that in the architectures shown in FIG. 2 and FIG. 3, the transmission of the AMP device is based on scheduling of the network device. In FIG. 2, the AMP device directly communicates with the network device, and thus the network device can directly transmit scheduling information to the AMP device. In FIG. 3, the AMP device communicates with the network device through an intermediate node, and the scheduling information transmitted by the network device is first transmitted to the intermediate node and then transmitted to the AMP device by the intermediate node.

[0061] In some embodiments, if the AMP device transmits a command, data or signal to the network device or the intermediate node through backscattering, a carrier needs to be provided to the AMP device. In embodiments of the present application, the node that provides the carrier to the AMP device can be the network device or the intermediate node, or can be another node.

[0062] In some embodiments, the AMP device can transmit a command, data or signal to the network device or the intermediate node through active transmission.

[0063] When the AMP device transmits an uplink signal (such as a PPDU) to the network device, the uplink signal can be modulated using an OOK modulation mode, for example, both the backscattering AMP device and the active transmission AMP device can modulate the uplink signal using the OOK modulation mode. This is because the OOK modulation mode is relatively simple and suitable for low-complexity AMP devices. However, the use of the OOK modulation mode by the AMP device can result in low transmission efficiency.

[0064] In addition, the AMP device includes various types (device A, device B and device C) mentioned above, and in the coverage range of one network device, there can be both backscattering AMP devices (such as device A and / or device B) and active transmission AMP devices (such as device C). For different types of AMP devices, if different types of AMP devices all use the OOK modulation mode, the system performance of the AMP device can be poor.

[0065] As can be seen from the above description, for some terminal devices with low complexity (such as AMP devices), it is not appropriate to only use the OOK modulation mode.

[0066] To solve the above problem, embodiments of the present application can provide a plurality of PPDU formats with different modulation modes (or waveforms), so that the PPDU format design is more flexible, thereby facilitating different terminal devices to use different PPDU formats (modulation modes) for uplink transmission, optimizing the performance of the communication system, and achieving a balance between performance and complexity. It should be noted that the modulation mode of the PPDU format is introduced below, and the modulation mode below can be replaced by the waveform without special emphasis.

[0067] The plurality of PPDU formats provided by embodiments of the present application will be introduced below.

[0068] In embodiments of the present application, the modulation modes corresponding to the plurality of PPDU formats are different. Or in other words, in embodiments of the present application, the PPDU formats can be distinguished according to the modulation mode, and the modulation modes corresponding to different PPDU formats are different.

[0069] In some embodiments, one PPDU format (or one PPDU) can include one or more information fields, and different information fields can carry different information. The information fields included in the PPDU format will be introduced below in combination with FIG. 4 and FIG. 5.

[0070] FIG. 4 is an example diagram of a PPDU format provided by an embodiment of the present application. The PPDU format shown in FIG. 4 can include a first information field, a second information field and a third information field. These information fields will be introduced below respectively.

[0071] In some embodiments, the first information field can be used to synchronize the signal of the network device and the terminal device. For example, the first information field can be used to remind the network device that there is a potential receivable signal coming, so as to wake up the network device to prepare to receive the signal. For another example, the first information field can be used for the network device to perform timing synchronization on the signal sent by the terminal device, so as to ensure that the network device can correctly identify the start and end of the subsequent data.

[0072] Therefore, in some embodiments, the first information field can be understood or referred to as a synchronization (SYNC) field. However, the name of the first information field is not limited in embodiments of the present application, for example, the first information field can also be understood or referred to as a preamble, etc.

[0073] In some embodiments, the second information field can be used to carry data and / or control information. Thus, in some embodiments, the second information field can also be referred to or understood as a payload field or a data field, etc.

[0074] In some embodiments, the number of bits occupied by the second information field is variable. For example, the number of bits occupied by the second information can be different when the amount of data carried by the second information field is different. In some embodiments, when the amount of data carried by the second information field is larger, the number of bits occupied by the second information field is larger.

[0075] In some embodiments, the third information field can be used to indicate the transmission parameters adopted by the second information field. In this way, the network device can correctly decode and process the information carried by the second information field according to the transmission parameters indicated by the third information field. The transmission parameters indicated by the third information field are not limited in the embodiments of the present application. For example, the third information field can indicate one or more of the following transmission parameters: modulation and coding scheme, coding mode (such as Manchester coding, pulse interval coding, etc.), number of spatial streams, and time remaining for the transmission opportunity. In some embodiments, the third information field can also be used for channel estimation by the network device.

[0076] FIG. 5 is an example diagram of a PPDU format provided by another embodiment of the present application. The PPDU format shown in FIG. 5 can include a first information field and a second information field. Compared with the PPDU format shown in FIG. 4, the PPDU format shown in FIG. 5 omits the third information field. For example, if the terminal device uses the transmission parameters configured by the network device for uplink transmission, the terminal device can use the PPDU format shown in FIG. 5. The related introduction of the first information field and the second information field can be referred to the above, which will not be described here.

[0077] In some embodiments, the second information field is located after the first information field. For example, the second information field can be adjacent to the first information field and located after the first information field. For another example, the second information field can be spaced apart from the first information field by the third information field and located after the first information field.

[0078] In some embodiments, the third information field is located after the first information field and before the second information field.

[0079] In some embodiments, the first information field in the PPDU formats can adopt the same modulation mode regardless of the PPDU format. That is, in some embodiments, the modulation mode adopted by the first information field corresponding to the plurality of PPDU formats can be the same. As an implementation, the modulation mode adopted by the first information field corresponding to the plurality of PPDU formats includes an OOK modulation mode, for example, the modulation mode adopted by the first information field is an OOK modulation mode. This is because the network device needs to blindly detect the first information field, and the first information field adopting an OOK modulation mode can help reduce the complexity of detection by the network device. For example, the plurality of PPDU formats include PPDU format 0, PPDU format 1, and PPDU format 2, and the first information field in PPDU format 0, PPDU format 1, and PPDU format 2 all adopts an OOK modulation mode. However, the embodiments of the present application are not limited thereto, for example, the modulation mode adopted by the first information field corresponding to the plurality of PPDU formats can all be a binary phase shift keying (BPSK) modulation mode or a minimum shift keying (MSK) modulation mode; for another example, the first information field corresponding to the plurality of PPDU formats can adopt different modulation modes.

[0080] In some embodiments, the second information field in the plurality of PPDU formats can adopt different modulation modes. That is, for different PPDU formats, the modulation mode adopted by the second information field can include one of the following: an OOK modulation mode, a BPSK modulation mode, and an MSK modulation mode. For example, the plurality of PPDU formats include PPDU format 0, PPDU format 1, and PPDU format 2, in PPDU format 0, the second information field adopts an OOK modulation mode; in PPDU format 1 and PPDU format 2, the second information field adopts an MSK modulation mode (or a BPSK modulation mode). For another example, in PPDU format 0, the second information field adopts an OOK modulation mode; in PPDU format 1, the second information field adopts a BPSK modulation mode; in PPDU format 2, the second information field adopts an MSK modulation mode. For another example, in PPDU format 0 and PPDU format 1, the second information field adopts an OOK modulation mode; in PPDU format 2, the second information field adopts an MSK modulation mode (or a BPSK modulation mode).

[0081] In some embodiments, the third information field in the plurality of PPDU formats can adopt different modulation manners. That is, for different PPDU formats, the modulation manner adopted by the third information field can include one of the following: OOK modulation manner, BPSK modulation manner, MSK modulation manner. For example, the plurality of PPDU formats include PPDU format 0, PPDU format 1 and PPDU format 2, in the PPDU format 0, the third information field adopts OOK modulation manner; in the PPDU format 1 and the PPDU format 2, the third information field adopts MSK modulation manner (or BPSK modulation manner). For another example, in the PPDU format 0, the third information field adopts OOK modulation manner; in the PPDU format 1, the third information field adopts BPSK modulation manner; in the PPDU format 2, the third information field adopts MSK modulation manner. For another example, in the PPDU format 0 and the PPDU format 1, the third information field adopts OOK modulation manner; in the PPDU format 2, the third information field adopts MSK modulation manner (or BPSK modulation manner).

[0082] In some embodiments, different information fields in one PPDU format can adopt the same modulation manner. In some embodiments, different information fields in one PPDU format can adopt different modulation manners.

[0083] Hereinafter, the modulation manners adopted by different information fields in one PPDU format are introduced by taking the PPDU format shown in FIG. 4 as an example.

[0084] In some embodiments, the first information field, the second information field and the third information field can all adopt the same modulation manner. For example, referring to FIG. 6, the first information field, the second information field and the third information field can all adopt OOK modulation manner. In this way, the complexity of detection by the network device can be reduced.

[0085] However, considering that the transmission efficiency of OOK modulation manner is relatively low, and the sidelobe of OOK is higher than other modulation manners (such as BPSK modulation manner, MSK modulation manner), other modulation manners can be considered to modulate the uplink PPDU. For example, the first information field, the second information field and the third information field can all adopt BPSK modulation manner; for another example, the first information field, the second information field and the third information field can all adopt MSK modulation manner; for another example, one or more of the first information field, the second information field and the third information field can adopt BPSK modulation manner or MSK modulation manner.

[0086] Taking the terminal device as an example, at least for the AMP device of active transmission, other modulation modes can be used in addition to the OOK modulation mode. That is, for the AMP device of active transmission, the modulation mode of the uplink PPDU sent by the AMP device can be flexible, that is, the AMP device of active transmission can flexibly select the modulation mode of the uplink PPDU from multiple modulation modes.

[0087] In some embodiments, the first information field, the second information field and the third information field can adopt different modulation modes.

[0088] As an implementation manner, the second information field and the third information field adopt the same modulation mode, but adopt different modulation modes from the first information field. For example, referring to FIG. 7, the first information field adopts the OOK modulation mode, and the second information field and the third information field adopt the MSK modulation mode. For another example, the first information field adopts the OOK modulation mode, and the second information field and the third information field adopt the BPSK modulation mode. For another example, the first information field adopts the BPSK modulation mode, and the second information field and the third information field adopt the MSK modulation mode. For the sake of brevity, other combination modes are not listed.

[0089] As another implementation manner, the first information field and the third information field adopt the same modulation mode, but adopt different modulation modes from the second information field. For example, referring to FIG. 8, the first information field and the third information field adopt the OOK modulation mode, and the second information field adopts the MSK modulation mode. For another example, the first information field and the third information field adopt the OOK modulation mode, and the second information field adopts the BPSK modulation mode. For another example, the first information field and the third information field adopt the BPSK modulation mode, and the second information field adopts the MSK modulation mode. For the sake of brevity, other combination modes are not listed.

[0090] As another implementation manner, the first information field and the third information field adopt the same modulation mode, but adopt different modulation modes from the second information field. For example, referring to FIG. 8, the first information field and the third information field adopt the OOK modulation mode, and the second information field adopts the MSK modulation mode. For another example, the first information field and the third information field adopt the OOK modulation mode, and the second information field adopts the BPSK modulation mode. For another example, the first information field and the third information field adopt the BPSK modulation mode, and the second information field adopts the MSK modulation mode. For the sake of brevity, other combination modes are not listed.

[0091] As yet another implementation, the first information field, the second information field and the third information field are modulated by different modulation schemes, respectively. For example, referring to FIG. 10, the first information field is modulated by OOK, the second information field is modulated by BPSK, and the third information field is modulated by MSK. As another example, the first information field is modulated by OOK, the second information field is modulated by MSK, and the third information field is modulated by BPSK. As yet another example, the first information field is modulated by BPSK, the second information field is modulated by OOK, and the third information field is modulated by MSK. Other combinations are not listed for brevity.

[0092] The modulation schemes used in different information fields in a PPDU format are introduced below with the PPDU format shown in FIG. 5 as an example.

[0093] In some embodiments, the first information field and the second information field can be modulated by the same modulation scheme. For example, referring to FIG. 11, the first information field and the second information field are both modulated by OOK. As another example, the first information field and the second information field are both modulated by BPSK. As yet another example, the first information field and the second information field are both modulated by MSK.

[0094] In some embodiments, the first information field and the second information field can be modulated by different modulation schemes. For example, referring to FIG. 12, the first information field is modulated by OOK, and the second information field is modulated by MSK. As another example, the first information field is modulated by OOK, and the second information field is modulated by BPSK. As yet another example, the first information field is modulated by BPSK, and the second information field is modulated by MSK. Other combinations are not listed for brevity.

[0095] In some embodiments, an information field in a PPDU format can be used to indicate the modulation scheme used in other information fields following the information field.

[0096] For example, the first information field can be used to indicate the modulation scheme used in the second information field and / or the third information field. As another example, the third information field can be used to indicate the modulation scheme used in the second information field. This is introduced below.

[0097] The embodiments of the present application do not limit the implementation manner of the first information field indicating the modulation mode adopted by the second information field and / or the third information field. As a possible implementation manner, the first information field can implicitly indicate the modulation mode adopted by the second information field and / or the third information field. Illustratively, the first information field can include a first sequence, and the first sequence can be used to indicate the modulation mode adopted by the second information field and / or the third information field. That is, the embodiments of the present application can define multiple first sequences to implicitly indicate the modulation mode adopted by the second information field and / or the third information field, wherein different first sequences indicate different modulation modes adopted by the second information field and / or the third information field. Or, the embodiments of the present application can define multiple first sequences, and one first sequence corresponds to one specific PPDU format, wherein the modulation modes corresponding to each PPDU format are different, that is, there is a mapping relationship between the first sequence and the PPDU format, and the modulation modes corresponding to different PPDU formats are different. In some embodiments, the mapping relationship between the first sequence and the PPDU format is configured by the network device. In some embodiments, the mapping relationship between the first sequence and the PPDU format can be predefined, for example, predefined by a protocol. The embodiments of the present application do not limit this.

[0098] The embodiments of the present application do not limit the first sequence, as long as it can be used to determine the modulation mode adopted by the second information field and / or the third information field. Illustratively, the first sequence can be configured by the network device; or, the first sequence can be predefined.

[0099] As another possible implementation manner, the first information field can explicitly indicate the modulation mode adopted by the second information field and / or the third information field. For example, the first information field can include a first bit and a second bit, the first bit is used to indicate the modulation mode adopted by the second information field, and the second bit is used to indicate the modulation mode adopted by the third information field. As an example, when the first bit takes a first value (such as 0), the modulation mode adopted by the second information field is BPSK modulation mode, and when the first bit takes a second value (such as 1), the modulation mode adopted by the second information field is OOK modulation mode. As an example, when the second bit takes a first value (such as 0), the modulation mode adopted by the third information field is BPSK modulation mode, and when the second bit takes a second value (such as 1), the modulation mode adopted by the third information field is OOK modulation mode.

[0100] The embodiments of the present application do not limit the implementation manner of the third information field indicating the modulation mode adopted by the second information field. As a possible implementation manner, the third information field can explicitly indicate the modulation mode adopted by the second information field. For example, the third information field can include indication information, and the indication information is used to indicate the modulation mode adopted by the second information field.

[0101] The embodiments of the present application do not limit the number of bits occupied by the indication information. For example, the indication information can include a third bit, and different values of the third bit can be used to indicate different modulation modes adopted by the second information field. For example, the third bit is 1 bit, when the third bit is 0, it can represent that the second information field adopts OOK modulation mode; when the third bit is 1, it can represent that the second information field adopts BPSK modulation mode (or MSK modulation mode). Alternatively, when the third bit is 1, it can represent that the second information field adopts OOK modulation mode; when the third bit is 0, it can represent that the second information field adopts BPSK modulation mode (or MSK modulation mode). For example, the third bit is 2 bits, when the third bit is 00, it can represent that the second information field adopts OOK modulation mode; when the third bit is 01, it can represent that the second information field adopts BPSK modulation mode; when the third bit is 10, it can represent that the second information field adopts MSK modulation mode, and the third bit is 11. Alternatively, when the third bit is 00, it can represent that the second information field adopts BPSK modulation mode; when the third bit is 01, it can represent that the second information field adopts MSK modulation mode; when the third bit is 10, it can represent that the second information field adopts OOK modulation mode, and the third bit is 11. As an example, assuming that the protocol stipulates that the first information field and the third information field both adopt a fixed modulation mode (such as both adopting OOK modulation mode, or the first information field adopts OOK modulation mode and the third information field adopts MSK modulation mode), in this case, the embodiments of the present application can explicitly indicate the modulation mode adopted by the second information field through 1 bit or 2 bits in the third information field, which is easy for terminal devices to implement and has low signaling overhead.

[0102] Of course, the third bit can also have other values, which are not limited by the embodiments of the present application. For example, the third bit can use multiple bits to indicate the modulation mode adopted by the third information field, such as the values of the third bit including "BPSK modulation mode", "MSK" modulation mode, "OOK modulation mode", etc.

[0103] As another possible implementation, the third information field can implicitly indicate the modulation mode adopted by the second information field. For example, the transmission parameters (such as the remaining time of the transmission opportunity, the number of spatial streams, etc.) in the third information field can implicitly indicate the modulation mode adopted by the second information field. As an example, if the remaining time of the transmission opportunity is less than a first threshold, it represents that the second information field adopts BPSK modulation mode (or MSK modulation mode); if the remaining time of the transmission opportunity is greater than or equal to the first threshold, it represents that the second information field adopts OOK modulation mode, etc.

[0104] In some embodiments, the various PPDU formats mentioned in the present application can be applied to a mixed deployment scenario. Taking a terminal device as an AMP device as an example, when a backscattering AMP device is mixed deployed with an actively transmitting AMP device, different types of AMP devices in this deployment scenario can adopt different PPDU formats for uplink transmission, thereby facilitating the balance between the performance and complexity of the communication system.

[0105] The various PPDU formats provided by the embodiments of the present application are introduced above, and the flow of the method of the embodiments of the present application is introduced below.

[0106] FIG. 13 is a flow diagram of a method of wireless communication provided by an embodiment of the present application. The method shown in FIG. 13 is introduced from the perspective of interaction between a terminal device and a network device. The terminal device and the network device may, for example, be the terminal device 120 and the network device 110 shown in FIG. 1, respectively. In some embodiments, the terminal device may, for example, be a low-complexity terminal device, such as an AMP device, a zero-power device, a low-power (RedCap) device, and the like.

[0107] The method shown in FIG. 13 includes step S1310. In step S1310, the terminal device sends a first PPDU to the network device.

[0108] In an embodiment of the present application, the first PPDU adopts a first PPDU format. In some embodiments, the first PPDU format can be any one of the various PPDU formats described above.

[0109] In some embodiments, the first PPDU format can include a first information field and a second information field.

[0110] In some embodiments, the first information field and the second information field in the first PPDU format adopt the same modulation mode. For example, the first information field and the second information field both adopt an OOK modulation mode. For another example, the first information field and the second information field both adopt a BPSK (or MSK) modulation mode.

[0111] In some embodiments, the first information field and the second information field in the first PPDU format adopt different modulation modes. For example, the first information field adopts an OOK modulation mode, and the second information field adopts a BPSK modulation mode. For another example, the first information field adopts an OOK modulation mode, and the second information field adopts an MSK modulation mode.

[0112] In some embodiments, the first PPDU format can include a first information field, a second information field, and a third information field.

[0113] In some embodiments, the first information field, the second information field and the third information field in the first PPDU format adopt the same modulation mode. For example, the first information field, the second information field and the third information field all adopt OOK modulation mode. For another example, the first information field, the second information field and the third information field all adopt BPSK (or MSK) modulation mode.

[0114] In some embodiments, the first information field, the second information field and the third information field in the first PPDU format adopt different modulation modes. For example, the first information field and the second information field adopt the same modulation mode, but different from the third information field. Or, the first information field and the third information field adopt the same modulation mode, but different from the second information field. For another example, the second information field and the third information field adopt the same modulation mode, but different from the first information field. For another example, the first information field, the second information field and the third information field adopt different modulation modes.

[0115] In some embodiments, the first PPDU format is determined from the plurality of PPDU formats.

[0116] The embodiments of the present application do not limit the manner of determining the first PPDU format. As an implementation manner, the first PPDU format is configured by the network device from the plurality of PPDU formats.

[0117] Exemplarily, in some embodiments, the method shown in FIG. 13 can further include step S1305, in which the network device sends a second PPDU to the terminal device. The second PPDU can include configuration information, which is used to configure the first PPDU format. Taking the terminal device as an AMP device for example, the network device can configure the first PPDU format through the configuration information when polling the terminal device in downlink. That is, in some embodiments, the second PPDU can be a PPDU used for downlink polling.

[0118] The embodiments of the present application do not limit the manner of carrying the configuration information. Exemplarily, the configuration information can be carried in one or more of the following: the medium access control (MAC) header of the second PPDU, the second information field of the second PPDU, and the third information field of the second PPDU. The related introduction about the second information field and / or the third information field can be referred to the above.

[0119] In some embodiments, the network device can configure the first PPDU format for the terminal device according to the type of the terminal device. For example, if the terminal device is an AMP device, the network device can configure the first PPDU format as a PPDU format in which all information fields are modulated by OOK if the terminal device is a backscattering AMP device (i.e., the AMP device type is device A and / or device B), and the network device can configure the first PPDU format as a PPDU format in which different information fields are modulated by different modulation manners if the terminal device is an actively transmitting AMP device (i.e., the AMP device type is device C).

[0120] In some embodiments, if the first PPDU format is configured by the network device for the terminal device, the terminal device can not indicate the modulation manner of the second information field and / or the third information field in the first PPDU. In some embodiments, if the first PPDU format is configured by the network device for the terminal device, the terminal device can use a PPDU format without the third information field when transmitting the first PPDU.

[0121] As another implementation manner, the first PPDU format is determined (selected) by the terminal device from a plurality of PPDU formats. For example, the first PPDU format can be determined by the terminal device based on the type of the terminal device. For example, if the terminal device is an AMP device, the terminal device can determine the first PPDU format as a PPDU format in which all information fields are modulated by OOK if the terminal device is a backscattering AMP device (i.e., the AMP device type is device A and / or device B), and the terminal device can determine the first PPDU format as a PPDU format in which different information fields are modulated by different modulation manners if the terminal device is an actively transmitting AMP device (i.e., the AMP device type is device C).

[0122] In some embodiments, if the first PPDU format is determined by the terminal device, the terminal device can indicate the modulation manner of the second information field and / or the third information field in the first PPDU.

[0123] In the embodiments of the present application, different PPDU formats (i.e., different modulation manners / waveforms) can be used for different types of terminal devices to optimize the performance of the communication system and achieve a balance between the performance and complexity of the communication system.

[0124] The method embodiments of the present application are described in detail above in combination with FIG. 1 to FIG. 13, and the device embodiments of the present application are described in detail below in combination with FIG. 14 to FIG. 15. It should be understood that the description of the method embodiments and the description of the device embodiments correspond to each other, and therefore, the parts not described in detail can be referred to the method embodiments.

[0125] Figure 14 is a schematic diagram of a structure of a terminal device according to an embodiment of the present application. The terminal device 1400 shown in Figure 14 includes a sending module 1410. The sending module 1410 can be configured to send a first PPDU to a network device, the first PPDU being in a first PPDU format; wherein the first PPDU format is determined from a plurality of PPDU formats, the plurality of PPDU formats corresponding to different modulation modes.

[0126] In some embodiments, the first PPDU format includes a first information field and a second information field, the first information field and the second information field being in different modulation modes, or the first information field and the second information field being in the same modulation mode.

[0127] In some embodiments, the first information field is used to wake up the network device and the terminal device to signal synchronization, the plurality of PPDU formats corresponding to the same modulation mode of the first information field.

[0128] In some embodiments, the modulation mode of the first information field includes OOK.

[0129] In some embodiments, the second information field is used to carry data and / or control information, and the modulation mode of the second information field includes one of OOK, BPSK, and MSK.

[0130] In some embodiments, the first PPDU format further includes a third information field, the third information field being used to indicate a transmission parameter of the second information field, and the modulation mode of the third information field includes one of OOK, BPSK, and MSK.

[0131] In some embodiments, the third information field includes indication information, the indication information being used to indicate the modulation mode of the second information field.

[0132] In some embodiments, the first information field includes a first sequence, the first sequence being used to indicate the modulation mode of the second information field and / or a third information field, the third information field being used to indicate the transmission parameter of the second information field.

[0133] In some embodiments, the terminal device further includes a receiving module 1420, configured to receive a second PPDU sent by the network device, the second PPDU including configuration information, the configuration information being used to configure the first PPDU format.

[0134] In some embodiments, the configuration information is carried in one or more of the following: a MAC header of the second PPDU; a second information field of the second PPDU, the second information field being used to carry data and / or control information; a third information field of the second PPDU, the third information field being used to indicate transmission parameters adopted by the second information field.

[0135] In some embodiments, the first PPDU format is determined by the terminal device based on a type of the terminal device.

[0136] In some embodiments, the terminal device is an AMP device.

[0137] In some embodiments, the sending module 1410 can be a transceiver 1630. The terminal device 1400 can further include a processor 1610 and a memory 1620, as shown in FIG. 16.

[0138] FIG. 15 is a structural schematic diagram of a network device according to an embodiment of the present application. The network device 1500 shown in FIG. 15 includes a receiving module 1510. The receiving module 1510 can be configured to receive a first PPDU sent by a terminal device, the first PPDU adopting a first PPDU format; wherein the first PPDU format is determined from a plurality of PPDU formats, the plurality of PPDU formats corresponding to different demodulation modes.

[0139] In some embodiments, the first PPDU format includes a first information field and a second information field, the first information field and the second information field adopting different demodulation modes, or the first information field and the second information field adopting the same demodulation mode.

[0140] In some embodiments, the first information field is used to wake up the network device and the terminal device to signal synchronization, the plurality of PPDU formats corresponding to the same demodulation mode adopted by the first information field.

[0141] In some embodiments, the demodulation mode adopted by the first information field includes OOK.

[0142] In some embodiments, the second information field is used to carry data and / or control information, the demodulation mode adopted by the second information field includes one of the following: OOK, BPSK, MSK.

[0143] In some embodiments, the first PPDU format further includes a third information field, the third information field being used to indicate transmission parameters adopted by the second information field, the demodulation mode adopted by the third information field including one of the following: OOK, BPSK, MSK.

[0144] In some embodiments, the third information field includes indication information, the indication information being used to indicate a demodulation manner adopted by the second information field.

[0145] In some embodiments, the first information field includes a first sequence, the first sequence being used to indicate a demodulation manner adopted by the second information field and / or a third information field, the third information field being used to indicate a transmission parameter adopted by the second information field.

[0146] In some embodiments, the network device further includes a sending module 1520, configured to send a second PPDU to the terminal device, the second PPDU including configuration information, the configuration information being used to configure the first PPDU format.

[0147] In some embodiments, the configuration information is carried in one or more of the following: a MAC header of the second PPDU; a second information field of the second PPDU, the second information field being used to carry data and / or control information; and a third information field of the second PPDU, the third information field being used to indicate a transmission parameter adopted by the second information field.

[0148] In some embodiments, the first PPDU format is determined by the terminal device based on a type of the terminal device.

[0149] In some embodiments, the terminal device is an AMP device.

[0150] In some embodiments, the receiving module 1510 can be a transceiver 1630. The network device 1500 can further include a processor 1610 and a memory 1620, as shown in FIG. 16.

[0151] FIG. 16 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. The dashed line in FIG. 16 indicates that the unit or module is optional. The apparatus 1600 can be used to implement the method described in the above method embodiments. The apparatus 1600 can be a chip, a terminal device or a network device.

[0152] The apparatus 1600 can include one or more processors 1610. The processor 1610 can support the apparatus 1600 to implement the methods described in the foregoing method embodiments. The processor 1610 can be a general processor or a special-purpose processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general processor can be a microprocessor or the processor can also be any conventional processor.

[0153] The apparatus 1600 can also include one or more memories 1620. The memory 1620 stores a program that can be executed by the processor 1610, so that the processor 1610 performs the methods described in the foregoing method embodiments. The memory 1620 can be independent of the processor 1610 or integrated in the processor 1610.

[0154] The apparatus 1600 can also include a transceiver 1630. The processor 1610 can communicate with other devices or chips through the transceiver 1630. For example, the processor 1610 can perform data transceiving with other devices or chips through the transceiver 1630.

[0155] The embodiments of the present application also provide a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal device or the network device provided by the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0156] The embodiments of the present application also provide a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or the network device provided by the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0157] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal device or the network device provided by the embodiments of the present application, and the computer program causes the computer to execute the method performed by the terminal device or the network device in the various embodiments of the present application.

[0158] It should be understood that the terms "system" and "network" can be used interchangeably in this application. In addition, the terms used in this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of this application and the drawings are used to distinguish different objects, and are not used to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0159] In embodiments of this application, the term "indicate" can be direct indication, or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained by A; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0160] In embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0161] In embodiments of this application, the term "corresponding" can mean a direct or indirect corresponding relationship between the two, or can mean an associated relationship between the two, or can mean an indication and being indicated, configuration and being configured, etc.

[0162] In embodiments of this application, the term "include" can mean direct inclusion, or indirect inclusion. Alternatively, the term "include" mentioned in embodiments of this application can be replaced by "indicate" or "used to determine". For example, A includes B can be replaced by A indicates B, or A is used to determine B.

[0163] In embodiments of this application, "predefined" or "preconfigured" can be achieved by pre-saving corresponding codes, tables or other means for indicating related information in devices (such as terminal devices and network devices), and the specific implementation of this application is not limited. For example, predefinition can mean definition in a protocol.

[0164] In embodiments of this application, the "protocol" can refer to a standard protocol in the communication field, which can include LTE protocol, NR protocol and related protocols applied to future communication systems, and the application is not limited thereto.

[0165] The term "and / or" used in the embodiments of the present application only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects.

[0166] In various embodiments of the present application, the size of the sequence number of each process described above does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0167] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0168] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiments of the present application.

[0169] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit.

[0170] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server, data center and the like integrated with one or more available media sets. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, digital video disc (DVD)) or semiconductor media (for example, solid state disk (SSD)) and the like.

[0171] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising: Comprising: a terminal device sends a first physical layer protocol data unit (PPDU) to a network device, the first PPDU adopting a first PPDU format; wherein the first PPDU format is determined from a plurality of PPDU formats, the plurality of PPDU formats corresponding to different modulation manners.

2. The method of claim 1, wherein, The first PPDU format includes a first information field and a second information field, the first information field and the second information field adopting different modulation manners, or the first information field and the second information field adopting the same modulation manner.

3. The method of claim 2, wherein, The first information field is used to wake up signal synchronization of the network device and the terminal device, and the first information field of the plurality of PPDU formats adopts the same modulation manner.

4. The method according to claim 2 or 3, characterized in that, The modulation manner adopted by the first information field includes on-off keying (OOK).

5. The method according to any one of claims 2-4, characterized in that, The second information field is used to carry data and / or control information, and the modulation manner adopted by the second information field includes one of the following: OOK, binary phase shift keying (BPSK), and minimum shift keying (MSK).

6. The method according to any one of claims 2-5, characterized in that, The first PPDU format further includes a third information field, the third information field is used to indicate transmission parameters adopted by the second information field, and the modulation manner adopted by the third information field includes one of the following: OOK, BPSK, and MSK.

7. The method of claim 6, wherein, The third information field includes indication information, the indication information is used to indicate the modulation manner adopted by the second information field.

8. The method according to any one of claims 2-7, characterized in that, The first information field includes a first sequence, the first sequence is used to indicate the modulation manner adopted by the second information field and / or the third information field, and the third information field is used to indicate the transmission parameters adopted by the second information field.

9. The method according to any one of claims 1-8, characterized in that, The method further comprises: The terminal device receives a second PPDU sent by the network device, the second PPDU includes configuration information, and the configuration information is used to configure the first PPDU format.

10. The method of claim 9, wherein, The configuration information is carried in one or more of the following: a medium access control (MAC) header of the second PPDU; a second information field of the second PPDU, the second information field being used to carry data and / or control information; a third information field of the second PPDU, the third information field being used to indicate transmission parameters adopted by the second information field.

11. The method according to any one of claims 1-8, characterized in that, The first PPDU format is determined by the terminal device based on a type of the terminal device.

12. The method according to any one of claims 1-11, characterized in that, The terminal device is an AMP device.

13. A method of wireless communication, comprising: Comprising: a network device receives a first physical layer protocol data unit (PPDU) sent by a terminal device, the first PPDU adopting a first PPDU format; wherein the first PPDU format is determined from a plurality of PPDU formats, the plurality of PPDU formats corresponding to different demodulation manners.

14. The method of claim 13, wherein, The first PPDU format includes a first information field and a second information field, the first information field and the second information field adopting different demodulation manners, or the first information field and the second information field adopting the same demodulation manner.

15. The method of claim 14, wherein, The first information field is used to wake up signal synchronization of the network device and the terminal device, and the first information field of the plurality of PPDU formats adopts the same demodulation manner.

16. The method according to claim 14 or 15, characterized in that The demodulation mode adopted by the first information field includes on-off keying (OOK).

17. The method according to any one of claims 14-16, characterized by, The second information field is used to carry data and / or control information, and a demodulation mode adopted by the second information field includes one of the following: OOK, binary phase shift keying (BPSK), and minimum shift keying (MSK).

18. The method according to any one of claims 14-17, characterized by, The first PPDU format further includes a third information field, the third information field is used to indicate transmission parameters adopted by the second information field, and a demodulation mode adopted by the third information field includes one of the following: OOK, BPSK, and MSK.

19. The method of claim 18, wherein, The third information field includes indication information, the indication information is used to indicate a demodulation mode adopted by the second information field.

20. The method of any one of claims 14-19, wherein, The first information field includes a first sequence, the first sequence is used to indicate a demodulation mode adopted by the second information field and / or a third information field, and the third information field is used to indicate transmission parameters adopted by the second information field.

21. The method according to any one of claims 13-20, characterized by, The method further includes: The network device sends a second PPDU to the terminal device, and the second PPDU includes configuration information, the configuration information is used to configure the first PPDU format.

22. The method of claim 21, wherein, The configuration information is carried in one or more of the following: A medium access control (MAC) header of the second PPDU; A second information field of the second PPDU, the second information field is used to carry data and / or control information; A third information field of the second PPDU, the third information field is used to indicate transmission parameters adopted by the second information field.

23. The method of any one of claims 13-20, wherein, The first PPDU format is determined by the terminal device based on a type of the terminal device.

24. The method of any one of claims 13-23, wherein, The terminal device is an AMP device.

25. A terminal device, comprising: Includes: A sending module configured to send a first physical layer protocol data unit (PPDU) to a network device, the first PPDU adopts a first PPDU format. The first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different modulation modes.

26. The terminal device of claim 25, wherein, The first PPDU format includes a first information field and a second information field, a modulation mode adopted by the first information field is different from a modulation mode adopted by the second information field, or a modulation mode adopted by the first information field is the same as a modulation mode adopted by the second information field.

27. The terminal device of claim 26, wherein, The first information field is used to wake up signal synchronization of the network device and the terminal device, and modulation modes adopted by first information fields corresponding to the plurality of PPDU formats are the same.

28. The terminal device of claim 26 or 27, wherein, The demodulation mode adopted by the first information field includes on-off keying (OOK).

29. The terminal device of any one of claims 26-28, wherein, The second information field is used to carry data and / or control information, and a demodulation mode adopted by the second information field includes one of the following: OOK, binary phase shift keying (BPSK), and minimum shift keying (MSK).

30. The terminal device of any one of claims 26-29, wherein, The first PPDU format further includes a third information field, the third information field is used to indicate transmission parameters adopted by the second information field, and a demodulation mode adopted by the third information field includes one of the following: OOK, BPSK, and MSK.

31. The terminal device of claim 30, wherein, The third information field includes indication information, the indication information is used to indicate a demodulation mode adopted by the second information field.

32. The terminal device of any one of claims 26-31, wherein, The first information field comprises a first sequence, and the first sequence is used to indicate a modulation mode adopted by the second information field and / or a third information field, and the third information field is used to indicate a transmission parameter adopted by the second information field.

33. The terminal device of any one of claims 25-32, wherein, The terminal device further comprises: The receiving module is configured to receive a second PPDU sent by the network device, and the second PPDU comprises configuration information, and the configuration information is used to configure the first PPDU format.

34. The terminal device of claim 33, wherein, The configuration information is carried in one or more of the following: a media access control (MAC) header of the second PPDU; a second information field of the second PPDU, and the second information field is used to carry data and / or control information; a third information field of the second PPDU, and the third information field is used to indicate a transmission parameter adopted by the second information field.

35. The terminal device of any one of claims 25-32, wherein, The first PPDU format is determined by the terminal device based on a type of the terminal device.

36. The terminal device of any one of claims 25-35, wherein, The terminal device is an AMP device.

37. A network device, comprising: The network device comprises: The receiving module is configured to receive a first physical layer protocol data unit (PPDU) sent by a terminal device, and the first PPDU adopts a first PPDU format. The first PPDU format is determined from a plurality of PPDU formats, and the plurality of PPDU formats correspond to different demodulation modes.

38. The network device of claim 37, wherein, The first PPDU format comprises a first information field and a second information field, and the first information field and the second information field adopt different demodulation modes, or the first information field and the second information field adopt the same demodulation mode.

39. The network device of claim 38, wherein, The first information field is used to wake up a signal synchronization between the network device and the terminal device, and the plurality of PPDU formats correspond to the same demodulation mode of the first information field.

40. The network device of claim 38 or 39, wherein, The demodulation mode of the first information field comprises on-off keying (OOK).

41. The network device of any of claims 38-40, wherein, The second information field is used to carry data and / or control information, and the demodulation mode of the second information field comprises one of the following: OOK, binary phase shift keying (BPSK), and minimum shift keying (MSK).

42. The network device of any of claims 38-41, wherein, The first PPDU format further comprises a third information field, and the third information field is used to indicate a transmission parameter adopted by the second information field, and the demodulation mode of the third information field comprises one of the following: OOK, BPSK, and MSK.

43. The network device of claim 42, wherein, The third information field comprises indication information, and the indication information is used to indicate the demodulation mode of the second information field.

44. The network device of any of claims 38-43, wherein, The first information field comprises a first sequence, and the first sequence is used to indicate a modulation mode adopted by the second information field and / or a third information field, and the third information field is used to indicate a transmission parameter adopted by the second information field.

45. The network device of any of claims 37-44, wherein, The network device further comprises: The sending module is configured to send a second PPDU to the terminal device, and the second PPDU comprises configuration information, and the configuration information is used to configure the first PPDU format.

46. The network device of claim 45, wherein, The configuration information is carried in one or more of the following: a media access control (MAC) header of the second PPDU; a second information field of the second PPDU, and the second information field is used to carry data and / or control information; a third information field of the second PPDU, the third information field being used to indicate a transmission parameter adopted by the second information field.

47. The network device of any of claims 37-44, wherein, The first PPDU format is determined by the terminal device based on a type of the terminal device.

48. The network device of any of claims 37-47, wherein, The terminal device is an AMP device.

49. A terminal device, comprising: comprising a transceiver, a memory, and a processor, the memory being configured to store a program, and the processor being configured to invoke the program in the memory and control the transceiver to receive or send a signal, so that the terminal device performs the method in any one of claims 1-12.

50. A network device, comprising: comprising a transceiver, a memory, and a processor, the memory being configured to store a program, and the processor being configured to invoke the program in the memory and control the transceiver to receive or send a signal, so that the network device performs the method in any one of claims 13-24.

51. An apparatus comprising: comprising a processor configured to invoke a program from a memory, so that the apparatus performs the method in any one of claims 1-12 or 13-24.

52. A chip, comprising: comprising a processor configured to invoke a program from a memory, so that the apparatus performs the method in any one of claims 1-12 or 13-24.

53. A computer-readable storage medium, comprising: comprising a program configured to cause a computer to perform the method in any one of claims 1-12 or 13-24.

54. A computer program product, characterised in that, comprising a program configured to cause a computer to perform the method in any one of claims 1-12 or 13-24.

55. A computer program, characterized in that, The computer program causes a computer to perform the method in any one of claims 1-12 or 13-24.

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