Wireless communication method, and communication device

Abstract

Provided are a wireless communication method, and a communication device. The method comprises: a first device sends a first physical layer protocol data unit (PPDU) to a second device by means of a first resource unit (RU), the first RU belonging to a plurality of RUs, the plurality of RUs carrying a plurality of PPDUs comprising the first PPDU, and the plurality of PPDUs satisfying one or more of: the lengths of the plurality of PPDUs being the same; preamble sequences of the plurality of PPDUs being the same; and modulation and coding schemes (MCS) used by the plurality of PPDUs being the same. In embodiments of the present application, a plurality of first devices can respectively send a plurality of PPDUs on a plurality of RUs in one channel, that is to say, the plurality of first devices can use one channel at the same time to send respective PPDUs, thereby facilitating avoiding signal collisions and resulting transmission failures that occur in conventional solutions due to contending for, on the basis of a backoff mechanism, a right to use a channel.

Description

Wireless communication method and communication device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method and communication device. Background Art

[0002] In some scenarios (for example, in Wi-Fi 8 wireless networks), multiple first devices compete for channel usage on the same channel based on a backoff mechanism. Each of these first devices must obtain channel usage and complete data transmission one by one. If multiple first devices simultaneously reduce their backoff counters to 0, they will simultaneously transmit information on the channel to occupy it, causing a signal collision and transmission failure.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method and a communication device. The following introduces various aspects of the present application.

[0005] In a first aspect, a wireless communication method is provided, including: a first device sends a first physical layer protocol data unit (PPDU) to a second device through a first resource unit (RU), where the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs meet one or more of the following requirements: the multiple PPDUs have the same length; the preamble code sequences of the multiple PPDUs are the same; and the modulation and coding strategy MCS used by the multiple PPDUs is the same.

[0006] In a second aspect, a method for wireless communication is provided, including: a second device receives a first physical layer protocol data unit PPDU sent by a first device through a first resource unit RU, where the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs satisfy one or more of the following: the lengths of the multiple PPDUs are the same; the preamble code sequences of the multiple PPDUs are the same; and the modulation and coding scheme (MCS) used by the multiple PPDUs are the same.

[0007] According to a third aspect, a communication device is provided, including: a sending unit for sending a first physical layer protocol data unit PPDU to a second device through a first resource unit RU, wherein the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs satisfy one or more of the following: the lengths of the multiple PPDUs are the same; the preamble code sequences of the multiple PPDUs are the same; and the modulation and coding strategy MCS used by the multiple PPDUs are the same.

[0008] In a fourth aspect, a communication device is provided, including: a receiving unit for receiving a first physical layer protocol data unit PPDU sent by a first device through a first resource unit RU, wherein the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs satisfy one or more of the following: the lengths of the multiple PPDUs are the same; the preamble code sequences of the multiple PPDUs are the same; the modulation and coding strategy MCS used by the multiple PPDUs is the same.

[0009] In a fifth aspect, a communication device is provided, comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the communication device executes part or all of the steps in the methods of the above aspects.

[0010] In a sixth aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned communication device. In another possible design, the system may also include other devices that interact with the communication device in the solution provided in the embodiment of the present application.

[0011] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program enables a communication device to execute part or all of the steps in the methods of the above aspects.

[0012] In an eighth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a communication device to perform some or all of the steps of the methods described in each of the above aspects. In some implementations, the computer program product may be a software installation package.

[0013] In a ninth aspect, an embodiment of the present application provides a chip comprising a memory and a processor, wherein the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.

[0014] In an embodiment of the present application, multiple first devices can respectively send multiple PPDUs on multiple RUs in a channel. That is, multiple first devices can use one channel to send their respective PPDUs at the same time, which helps to avoid signal conflicts and transmission failures caused by competition for channel usage rights based on the backoff mechanism in traditional solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG1 is a schematic diagram of a wireless communication system used in an embodiment of the present application.

[0016] FIG. 2A shows a data transmission scheme using RUs.

[0017] FIG2B shows a data transmission scheme using distributed-tone resource units (dRUs).

[0018] FIG3 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

[0019] 4 to 5 are schematic diagrams of scheduling performed by the second device based on the first PPDU in an embodiment of the present application.

[0020] 6 to 19 are schematic diagrams showing the use of the solutions of the embodiments of the present application in different scenarios.

[0021] Figure 20 is a schematic diagram of the format of the first PPDU in an embodiment of the present application.

[0022] Figure 21 is a schematic diagram of a communication device according to an embodiment of the present application.

[0023] Figure 22 is a schematic diagram of a communication device according to an embodiment of the present application.

[0024] FIG23 is a schematic structural diagram of a device for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The technical solution in this application will be described below with reference to the accompanying drawings.

[0026] Communication System

[0027] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless local area networks (WLAN), wireless fidelity (WiFi), high performance radio local area networks (HIPELAN), wide area networks (WAN), cellular networks, or other communication systems. For another example, the technical solutions provided in the embodiments of the present application can be applied to communication systems that adopt the 802.11 standard. For example, the 802.11 standard includes but is not limited to the 802.11ax standard, the 802.11be standard, and the next generation 802.11 standard.

[0028] FIG1 is a schematic diagram of a communication system applicable to embodiments of the present application. Referring to FIG1 , the communication devices in the communication system 100 may include access points (APs) 111 and 112, and stations (STAs) 121 and 122. STA 121 may access the network through AP 111, and STA 122 may access the network through AP 112.

[0029] In some implementations, a STA may establish an association with one or more APs, after which the associated STAs and APs may communicate. For example, as shown in FIG1 , AP 111 and STA 121 may communicate after establishing an association, and AP 112 and STA 122 may communicate after establishing an association.

[0030] In some implementations, the communication in the communication system 100 may be communication between an AP and a non-AP STA, communication between a non-AP STA and a non-AP STA, or communication between a STA and a peer STA, where a peer STA may refer to a device that communicates with the STA peer, for example, the peer STA may be an AP or a non-AP STA.

[0031] It should be understood that FIG1 exemplarily shows two AP STAs and two non-AP STAs, and the communication system 100 may also include a larger number of AP STAs, or the communication system 100 may include other numbers of non-AP STAs, which is not limited in the embodiments of the present application.

[0032] In addition, the above communication system can be applied to scenarios of multi-device collaboration, such as multi-AP (multiple access points, Multi-AP) collaboration, or multi-site collaboration.

[0033] In the embodiments of this application, the names of AP and / or STA are not limited. In some scenarios, AP can also be called AP STA, that is, in a sense, AP is also a type of STA. In other scenarios, STA can also be called non-AP STA.

[0034] In some scenarios, the aforementioned communication device may also be a "multi-link device (MLD)," i.e., a device that can communicate via multiple communication links, where the multiple communication links may include communication links in different frequency bands, such as millimeter wave bands and / or low-frequency bands. Generally, if the multi-link device is an AP, the AP may also be referred to as a "multi-link AP." If the multi-link device is a STA, the STA may also be referred to as a "multi-link STA."

[0035] In the embodiments of the present application, an AP may be a device in a wireless network. An AP may be a communication entity such as a communication server, a router, a switch, or a bridge, or the AP device may include various forms of macro base stations, micro base stations, relay stations, etc. Of course, the AP may also be a chip, circuit, or processing system in these various forms of devices, thereby realizing the methods and functions of the embodiments of the present application. The AP device can be applied to a variety of scenarios, such as sensor nodes in smart cities (e.g., smart water meters, smart electricity meters, smart air detection nodes), smart devices in smart homes (e.g., smart cameras, projectors, displays, televisions, speakers, refrigerators, washing machines, etc.), nodes in the Internet of Things, entertainment terminals (e.g., wearable devices such as AR and VR), smart devices in smart offices (e.g., printers, projectors, etc.), Internet of Vehicles devices in the Internet of Vehicles, and some infrastructure in daily life scenarios (e.g., vending machines, self-service navigation counters in supermarkets, self-service checkout devices, self-service ordering machines), etc.

[0036] In some implementations, the role of a STA in a communication system is not absolute; in some scenarios, a STA can function as an AP. For example, when a mobile phone is connected to a router, it can be a non-AP STA, while when it is acting as a hotspot for other phones, it functions as an AP.

[0037] In the embodiments of the present application, a STA device in the embodiments of the present application may be a device with wireless transceiver functions, such as a device that supports the 802.11 series of protocols and can communicate with an AP or other STAs. For example, a STA is any user communication device that allows a user to communicate with an AP and, in turn, with a WLAN. STA devices include, for example, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.

[0038] The STA in the embodiment of the present application may also be a device that provides voice / data connectivity to users, such as a handheld device or vehicle-mounted device with wireless connection function. Examples include: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks or future-evolved public land mobile communication networks. The terminal equipment in the network (PLMN), etc., is not limited to this in the embodiments of the present application.

[0039] By way of example and not limitation, in the embodiments of this application, the STA device may also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for wearable devices that utilize wearable technology to intelligently design and develop wearable devices, such as glasses, gloves, watches, clothing, and shoes. Examples include smart watches or smart glasses, as well as devices that focus on a specific application function and require integration with other devices, such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0040] In addition, in embodiments of the present application, the STA device can also be a terminal device in the Internet of Things (IoT) system. The IoT is an important component of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects people and machines and things. In embodiments of the present application, IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrowband (NB) technology.

[0041] Furthermore, in the embodiments of the present application, the STA device may be a device in a connected vehicle system. The communication methods in a connected vehicle system are collectively referred to as V2X (where X represents everything). For example, V2X communication includes vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.

[0042] In addition, in an embodiment of the present application, the STA device may also include sensors such as smart printers, train detectors, and gas stations. Its main functions include collecting data (partial terminal devices), receiving control information and downlink data from AP devices, and sending electromagnetic waves to transmit data to AP devices.

[0043] In addition, the AP device in the embodiment of the present application may be a device for communicating with a STA device. The AP device may be a network device in a wireless local area network. The AP device may be used to communicate with the STA device through the wireless local area network.

[0044] From the perspective of the communication standards supported by the AP, in some implementations, the AP can be a device that supports the 802.11be standard. The AP can also be a device that supports various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0045] From the perspective of STA-supported communication standards, in some implementations, non-AP STAs can support the 802.11be standard. Non-AP STAs can also support various current and future 802.11 family wireless local area network (WLAN) standards, including 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0046] In the embodiments of the present application, there is no limitation on the frequency bands supported by WLAN technology. In some implementations, the frequency bands supported by WLAN technology may include, but are not limited to, low frequency bands (e.g., 2.4 GHz, 5 GHz, 6 GHz) and high frequency bands (e.g., 45 GHz, 60 GHz).

[0047] It should be understood that the specific forms of STA devices and AP devices in the embodiments of the present application are not particularly limited and are merely illustrative.

[0048] RU

[0049] In some protocols (e.g., IEEE 802.11ax), the concept of RU is introduced when introducing OFDMA technology. RU is intended to divide a channel into several RUs, each of which includes a continuous tone on the channel. Figure 2A shows a data transmission scheme using RUs. As shown in Figure 2A, channel 1 includes RU1 to RU3, each of which occupies a continuous tone. STA1 can occupy RU1 to communicate with AP0, STA2 can occupy RU2 to communicate with AP0, and STA3 can occupy RU3 to communicate with AP0.

[0050] In other scenarios, distributed-tone resource units (dRUs) are introduced. A dRU includes multiple discontinuous tones on the channel. Therefore, a dRU can disperse or distribute the tones occupied by a PPDU across the entire bandwidth. As shown in Figure 2B, channel 1 includes dRU1 to dRU3, and each dRU occupies a discontinuous tone. STA1 can occupy RU1 to communicate with AP0, STA2 can occupy RU2 to communicate with AP0, and STA3 can occupy RU3 to communicate with AP0.

[0051] For the sake of distinction, the RU including the continuous pass on the channel in FIG. 2A may be referred to as a regular RU (rRU).

[0052] In some scenarios (for example, in Wi-Fi 8 wireless networks), multiple first devices compete for channel usage on the same channel based on a backoff mechanism. Each of these first devices must obtain channel usage and complete data transmission one by one. If multiple first devices simultaneously reduce their backoff counters to 0, they will simultaneously transmit information on the channel to occupy it, causing a signal collision and transmission failure.

[0053] On the other hand, factors such as a greater number of first devices contending for a channel or a smaller contention window size will increase the probability of collision, resulting in a lower probability of successful transmission.

[0054] On the other hand, when a first device fails to occupy a channel, the size of its contention window will become larger, which will prolong the time it takes for the first device to obtain the right to use the channel again, resulting in increased communication delay of the first device.

[0055] Therefore, to address the above-mentioned issues, an embodiment of the present application provides a method for wireless communication, in which multiple first devices can respectively send multiple PPDUs on multiple RUs in a channel (e.g., a primary channel). In other words, multiple first devices can simultaneously use a channel to send their respective PPDUs, thereby avoiding the traditional solution of competing for channel usage rights based on a backoff mechanism, which causes signal conflicts and transmission failures. The following describes the method for wireless communication of an embodiment of the present application in conjunction with Figure 3. The method shown in Figure 3 includes step S310.

[0056] In step S310, the first device sends a first PPDU to the second device through the first RU.

[0057] In some implementations, the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU. The multiple PPDUs can be sent by multiple first devices.

[0058] In some implementations, multiple RUs may be located in the same channel, which may be a primary channel, for example. In other implementations, multiple RUs may be located in different channels.

[0059] In some implementations, the RU may be a dRU, which helps to improve the possibility of transmitting the first PPDU, wherein the dRU can refer to the above description. Of course, in the embodiment of the present application, the RU may also be an rRU.

[0060] In some implementations, if the RU is a dRU, the number of tones included in the multiple dRUs occupied by the multiple PPDUs may be the same. Of course, in the embodiment of the present application, the number of tones included in the multiple dRUs may be different.

[0061] In some implementations, multiple DRUs occupied by multiple PPDUs do not overlap with each other.

[0062] In some implementations, the first device and / or the second device may be a STA or an AP. In the embodiments of the present application, the device types of the first device and the second device are not limited. For example, the first device and the second device may both be stations. In another example, the first device may be a STA, and the second device may be an AP. In another example, the first device may be an AP, and the second device may be a STA.

[0063] In some implementations, the multiple PPDUs satisfy one or more of the following: the lengths of the multiple PPDUs are the same; the preamble sequences of the multiple PPDUs are the same; the modulation and coding scheme (MCS) used by the multiple PPDUs are the same, which helps to increase the possibility of the second device receiving the multiple PPDUs.

[0064] In some implementations, the lengths of multiple PPDUs are the same, which can be understood as the same number of bits in the multiple PPDUs, or the same number of time domain resources occupied by the multiple PPDUs, where the time domain resources can be, for example, symbols, time slots, subframes, etc.

[0065] In some implementations, the preamble sequences of multiple PPDUs are the same, which can be understood as the preambles of the multiple PPDUs being duplicate preambles.

[0066] In some implementations, the MCS used by multiple PPDUs is the same, where the MCS may include, for example, 64-quadrature amplitude modulation (QAM) or 256QAM.

[0067] As described above, multiple PPDUs can occupy different DRUs for transmission. Therefore, the PPDU transmitted in this manner can also be called a "duplicate preamble dRU PPDU".

[0068] In the embodiment of the present application, the manner in which the first device selects an RU is not limited. In some implementations, the first device may be determined based on predefined information, that is, the selectable RUs of each first device in multiple first devices may be defined in a predefined manner. In other implementations, the first device may randomly select an RU. In other implementations, a BSS index (e.g., BSS color) may correspond to one or more RUs, and accordingly, the first device may select an RU based on the BSS index to which it belongs.

[0069] In some implementations, the transmit power of the plurality of PPDUs is determined based on an expected receive power of the second device, where the expected receive power may be represented by an RSSI.

[0070] Typically, when different sending stations send a first PPDU to the same receiving station, to better ensure that the receiving station receives the first PPDU, these sending stations need to appropriately adjust their transmit power so that the RSSIs of the first PPDUs sent by different stations are the same or similar when they arrive at the receiving station. This requires the sending stations to predict the signal attenuation (path loss) from the sending station to the receiving station before sending the first PPDU. In this case, the system can predetermine the RSSI that the receiving station expects to receive the first PPDU. Accordingly, the transmit power of the sending station can be determined based on the RSSI of the expected received signal and the signal attenuation. For example, the transmit power of the sending station can be the sum of the RSSI of the expected received signal and the signal attenuation.

[0071] As described above, multiple first devices can transmit PPDUs through multiple RUs in a channel. Accordingly, after the second device successfully receives the PPDUs sent by the multiple first devices, it can determine which first device among the multiple first devices corresponding to the multiple PPDUs can transmit the data to be transmitted based on the first information carried in the multiple PPDUs. Of course, in an embodiment of the present application, the second device can randomly select a first device corresponding to a PPDU from the multiple PPDUs to transmit the data to be transmitted. The following description takes the first information carried by the first PPDU among the multiple PPDUs as an example.

[0072] In some implementations, the first PPDU carries first information, and the first information is used to determine whether the first device is allowed to transmit the data to be transmitted. In the embodiments of the present application, the manner in which the first PPDU carries the first information is not limited. For example, the first information can be carried in a PSDU within the first PPDU.

[0073] In some implementations, the first information is used to indicate one or more of the following: quality of service (QoS) requirements of the data to be transmitted; the importance of the data to be transmitted; the amount of data to be transmitted; the priority associated with the data to be transmitted; and the duration for which the first device requests to reserve transmission resources.

[0074] Taking the first information used to indicate the QoS requirements of the data to be transmitted as an example, in some implementations, the QoS requirements may include the transmission delay requirements of the data to be transmitted, the maximum packet loss rate of the data to be transmitted, the allocation and retention priority (ARP) of the data to be transmitted, etc.

[0075] Taking the first information used to indicate the priority associated with the data to be transmitted as an example, in some implementations, the priority associated with the data to be transmitted includes the priority of the access category AC corresponding to the data to be transmitted; and / or the priority of the transaction identifier TID corresponding to the data to be transmitted.

[0076] In some implementations, the priority associated with the data to be transmitted may be carried in a buffer status report (BSR) along with the amount of data to be transmitted. Of course, in embodiments of the present application, the priority associated with the data to be transmitted may be carried independently of the amount of data to be transmitted. For example, the amount of data to be transmitted may be carried in the BSR, and accordingly, the priority associated with the data to be transmitted may be carried outside the BSR.

[0077] Taking the example of first information being used to indicate the importance of data to be transmitted, in some implementations, the importance of the data to be transmitted can be indicated by a random number. That is, the first information carries a random number, and the value of the random number is used to indicate the importance of the data to be transmitted. For example, a larger random number value indicates a higher importance of the data to be transmitted. Conversely, a smaller random number value indicates a lower importance of the data to be transmitted. For another example, a smaller random number value indicates a higher importance of the data to be transmitted. Conversely, a larger random number value indicates a lower importance of the data to be transmitted.

[0078] In some implementations, the first PPDU includes a DBO counter field, and accordingly, the DBO counter field is used to carry a random number, as described below in conjunction with Figure 20. Of course, in the embodiment of the present application, the random number can be carried in other fields in the first PPDU.

[0079] Taking the example of the first information indicating the duration of the transmission resource reservation requested by the first device, in some implementations, the duration of the transmission resource reservation requested by the first device can be understood as the duration of the transmission resource reserved by the first device for transmitting the data to be transmitted. The reserved transmission resource can be, for example, a transmission opportunity (TXOP).

[0080] It should be noted that the above only lists the first information applicable to the embodiments of the present application by way of example. In other implementations, the first information may include the buffer size (buffer size) of the buffer status report (BSR). In other implementations, the first information may include an address associated with the PPDU, wherein the address may include a transmit address (TA) or a receive address (RA). In other implementations, the first information may include the number of frequency domain resources occupied by the PPDU, wherein the frequency domain resources may be, for example, bandwidth. In other implementations, the first information may include the number of frequency domain resources occupied by the PPDU, wherein the frequency domain resources may be, for example, bandwidth. In other implementations, the first information may include the frequency domain distance between the channel for sending the PPDU and the main channel.

[0081] It should also be noted that, as described above, the first information may be carried in the PPDU, or the first information may be determined based on the PPDU transmission mode. For example, if the first information includes the number of frequency domain resources occupied by the PPDU, the first information may be determined based on the PPDU transmission mode. For example, if the first information includes the frequency domain distance between the channel on which the PPDU is transmitted and the primary channel, the first information may be determined based on the frequency domain resources on which the PPDU is transmitted.

[0082] The first information in the embodiments of the present application is described above. In some scenarios, each of multiple PPDUs may carry the first information. Accordingly, the second device may determine, based on the first information carried in the multiple PPDUs, which PPDU corresponds to which first device is allowed to transmit data. In other scenarios, if the first PPDU is sufficient to carry the data to be transmitted, the first device may also transmit the data to be transmitted directly using the first PPDU.

[0083] In some implementations, whether to allow the first device to transmit the data to be transmitted may be determined based on the first information and the first rule. The first rule in the embodiment of the present application is introduced below in conjunction with implementations 1 to 9.

[0084] In implementation method 1, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the data volume of the target data to be transmitted is higher than the data volume of other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0085] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs. For example, if the first information carried in the multiple PPDUs indicates the amount of data to be transmitted, the target data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted corresponding to the amount of data indicated by the first information.

[0086] For example, multiple PPDUs include PPDU1 and PPDU2, wherein the first information in PPDU1 indicates that the amount of data to be transmitted is X, and the first information in PPDU2 indicates that the amount of data to be transmitted is Y, and X is a positive integer greater than Y. At this time, the first rule indicates that the data to be transmitted associated with the amount of data indicated by the first information in PPDU2 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU2 is allowed to be transmitted.

[0087] Of course, in the embodiment of the present application, the data volume of the above-mentioned target data to be transmitted may be lower than the data volume of other data to be transmitted in the data to be transmitted associated with multiple PPDUs.

[0088] In implementation method 2, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the importance of the target data to be transmitted is higher than the importance of other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0089] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs. For example, if the first information carried in the multiple PPDUs is used to indicate the importance of the data to be transmitted, the data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted corresponding to the importance indicated by the first information.

[0090] In some implementations, the importance of the data to be transmitted may be indicated by a random number, wherein the scheme of indicating the importance by a random number may be referred to the above introduction.

[0091] For example, assuming that a larger random number indicates a higher importance of the corresponding data to be transmitted, multiple PPDUs include PPDU1 and PPDU2, wherein the random number indicated by the first information in PPDU1 is 1, and the random number indicated by the first information in PPDU2 is 2. At this time, the first rule indicates that the data to be transmitted associated with the importance indicated by the first information in PPDU2 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU2 is allowed to be transmitted.

[0092] Of course, in the embodiment of the present application, the importance of the target data to be transmitted may be lower than the importance of other data to be transmitted in the data to be transmitted associated with multiple PPDUs.

[0093] In implementation method 3, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the QoS requirement of the target data to be transmitted is higher than the QoS requirement of other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0094] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs. For example, if the first information carried in the multiple PPDUs is used to indicate a quality of service (QoS) requirement for the data to be transmitted, then the data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted corresponding to the QoS requirement indicated by the first information.

[0095] In some implementations, the QoS requirements of the data to be transmitted may include transmission delay requirements. Accordingly, a higher QoS requirement indicates a shorter transmission delay of the data to be transmitted. Conversely, a lower QoS requirement indicates a longer transmission delay of the data to be transmitted. In other implementations, the QoS requirements of the data to be transmitted may include reliability requirements (for example, represented by a maximum packet loss rate). Accordingly, a higher QoS requirement indicates a higher reliability requirement of the data to be transmitted. Conversely, a lower QoS requirement indicates a lower reliability requirement of the data to be transmitted. In other implementations, the QoS requirements of the data to be transmitted may include ARP. Accordingly, a higher QoS requirement indicates a higher ARP of the data to be transmitted. Conversely, a lower QoS requirement indicates a lower ARP of the data to be transmitted.

[0096] For example, assuming that the QoS requirement is a transmission delay requirement, multiple PPDUs include PPDU1 and PPDU2, wherein the first information in PPDU1 indicates that the transmission delay requirement of the data to be transmitted is 5ms, and the first information in PPDU2 indicates that the transmission delay requirement of the data to be transmitted is 3ms. At this time, the first rule indicates that the data to be transmitted associated with the transmission delay requirement indicated by the first information in PPDU2 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU2 is allowed to be transmitted.

[0097] Of course, in the embodiment of the present application, the QoS requirement of the target data to be transmitted may be lower than the QoS requirement of other data to be transmitted among the data to be transmitted associated with the multiple PPDUs.

[0098] In implementation method 4, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the priority corresponding to the target data to be transmitted is higher than the priority corresponding to other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0099] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs. For example, if the first information carried in the multiple PPDUs is used to indicate the priority corresponding to the data to be transmitted, then the data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted corresponding to the priority indicated by the first information.

[0100] In some implementations, the priority corresponding to the data to be transmitted may include an access control (AC) priority and / or a transaction identifier (TID) priority.

[0101] For example, assuming that the priority corresponding to the data to be transmitted is the priority of AC, multiple PPDUs include PPDU1 and PPDU2, wherein the priority of AC indicated by the first information in PPDU1 is higher than the priority of AC indicated by the first information in PPDU2. At this time, the first rule indicates that the data to be transmitted associated with the priority of AC indicated by the first information in PPDU1 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU1 is allowed to be transmitted.

[0102] For another example, assuming that the priority corresponding to the data to be transmitted is the priority of the TID, multiple PPDUs include PPDU1 and PPDU2, wherein the priority of the TID indicated by the first information in PPDU1 is higher than the priority of the TID indicated by the first information in PPDU2. At this time, the first rule indicates that the data to be transmitted associated with the priority of the TID indicated by the first information in PPDU1 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU1 is allowed to be transmitted.

[0103] Of course, in the embodiment of the present application, the priority corresponding to the above-mentioned target data to be transmitted may be lower than the priority corresponding to the data to be transmitted associated with multiple PPDUs.

[0104] In implementation method 5, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the cache size of the BSR of the target data to be transmitted is higher than the cache size of the BSR of other data to be transmitted, wherein the other data to be transmitted is the data to be transmitted other than the target data to be transmitted among the multiple data to be transmitted.

[0105] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs. For example, if the first information carried in the multiple PPDUs is used to indicate the buffer size of the BSR for the data to be transmitted, then the data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted corresponding to the buffer size of the BSR indicated by the first information.

[0106] For example, multiple PPDUs include PPDU1 and PPDU2, wherein the first information in PPDU1 indicates that the buffer size of the BSR of the data to be transmitted is X, and the first information in PPDU2 indicates that the buffer size of the BSR of the data to be transmitted is Y, and X is a positive number greater than Y. At this time, the first rule indicates that the data to be transmitted associated with the buffer size of the BSR indicated by the first information in PPDU2 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU2 is allowed to be transmitted.

[0107] In some implementations, a BSR may contain multiple minimum buffer sizes. In this case, the first rule may indicate that the data to be transmitted corresponding to all minimum buffer sizes in the BSR is permitted to be transmitted. Of course, in embodiments of the present application, the first rule may also indicate that the data to be transmitted corresponding to a specific buffer size among multiple buffer sizes is permitted to be transmitted. The data to be transmitted corresponding to a specific buffer size may be randomly selected.

[0108] Of course, in the embodiment of the present application, the buffer size of the BSR of the target data to be transmitted may be larger than the buffer size of the BSRs of other data to be transmitted among the data to be transmitted associated with multiple PPDUs.

[0109] In implementation method 6, the first rule may indicate that the transmission of target data to be transmitted associated with multiple PPDUs is allowed, wherein the transmission resource occupancy time associated with the target data to be transmitted is less than the transmission resource occupancy time associated with other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0110] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as the data to be transmitted indicated by multiple first devices through the transmission of PPDUs. For example, if the first information carried in the multiple PPDUs requests the duration of transmission resources for transmitting the data to be transmitted, the data to be transmitted associated with the multiple PPDUs can be understood as the data to be transmitted associated with the first information.

[0111] For example, assuming that the time for occupying the transmission resources requested by the first information may be the time for occupying the TXOP, multiple PPDUs include PPDU1 and PPDU2, wherein the time for occupying the TXOP requested by the first information in PPDU1 is T1, and the time for occupying the TXOP requested by the first information in PPDU2 is T2, and T1 is a positive number greater than T2. ​​At this time, the first rule indicates that the data to be transmitted associated with the first information in PPDU2 is allowed to be transmitted, that is, the first rule indicates that the data to be transmitted associated with PPDU2 is allowed to be transmitted.

[0112] Of course, in the embodiment of the present application, the transmission resource occupation time associated with the target data to be transmitted may be greater than the transmission resource occupation time associated with other data to be transmitted.

[0113] In implementation method 7, the first rule may indicate that the transmission of target data to be transmitted associated with multiple PPDUs is allowed, wherein the value of the address associated with the target data to be transmitted is smaller than the value of the address associated with other data to be transmitted, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0114] In some implementations, the address associated with the target data to be transmitted may include the TA and / or RA of the target data to be transmitted. In other implementations, the address associated with the target data to be transmitted may include the address of the PPDU associated with the target data to be transmitted, where the address of the PPDU may include, for example, the RA and / or TA.

[0115] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs.

[0116] For example, assuming that the address associated with the data to be transmitted is the RA of PPDU, multiple PPDUs include PPDU1 and PPDU2, where the value of RA of PPDU1 is less than the value of RA of PPDU2. At this time, the first rule indicates that the data to be transmitted associated with PPDU1 is allowed to be transmitted.

[0117] Of course, in the embodiment of the present application, the value of the address associated with the target data to be transmitted is greater than the value of the address associated with other data to be transmitted.

[0118] In implementation method 8, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the frequency domain interval between the channel where the PPDU corresponding to the target data to be transmitted is located and the main channel is smaller than the frequency domain interval between the channel where the PPDU corresponding to other data to be transmitted is located and the main channel, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0119] In some implementations, the channel for transmitting the PPDU may be 20 MHz. In other implementations, the channel for transmitting the PPDU may be (20×2 n )MHz, where n=1, 2, 3, ...

[0120] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs.

[0121] For example, multiple PPDUs include PPDU1 and PPDU2, where the frequency domain distance between the channel transmitting PPDU1 and the main channel is distance 1, the frequency domain distance between the channel transmitting PPDU1 and the main channel is distance 2, and distance 1 is less than distance 2. At this time, the first rule indicates that the data to be transmitted associated with PPDU1 is allowed to be transmitted.

[0122] Of course, in an embodiment of the present application, the frequency domain interval between the channel where the PPDU corresponding to the above-mentioned target data to be transmitted is located and the main channel is greater than the frequency domain interval between the channel where the PPDU corresponding to other data to be transmitted is located and the main channel.

[0123] In implementation method 9, the first rule may indicate that the target data to be transmitted associated with multiple PPDUs is allowed to be transmitted, wherein the bandwidth of the channel where the PPDU corresponding to the target data to be transmitted is located is greater than the bandwidth of the channel where the PPDU corresponding to other data to be transmitted is located, wherein the other data to be transmitted is other data to be transmitted among the multiple data to be transmitted except the target data to be transmitted.

[0124] In some implementations, the channel for transmitting the PPDU may be 20 MHz. In other implementations, the channel for transmitting the PPDU may be (20×2 n )MHz, where n=1, 2, 3, ...

[0125] In some implementations, the target data to be transmitted associated with multiple PPDUs can be understood as data requested to be transmitted by multiple first devices by sending PPDUs.

[0126] For example, the multiple PPDUs include PPDU1 and PPDU2, wherein the bandwidth of the channel for transmitting PPDU1 is 80 MHz, and the bandwidth of the channel for transmitting PPDU2 is 40 MHz. At this time, the first rule indicates that the data to be transmitted associated with PPDU1 is allowed to be transmitted.

[0127] Of course, in the embodiment of the present application, the bandwidth of the channel where the PPDU corresponding to the target data to be transmitted is located is smaller than the bandwidth of the channel where the PPDU corresponding to other data to be transmitted is located.

[0128] In the embodiments of the present application, the solutions described above in conjunction with Implementations 1 to 9 can be used individually or in combination. For example, Implementation 1 can be used in combination with Implementation 4. In this case, the first information may include the amount of data to be transmitted and the priority corresponding to the data to be transmitted. Accordingly, the target data to be transmitted may be the data with the highest priority and the smallest data amount among the data to be transmitted associated with multiple PPDUs. For example, the target data to be transmitted may be the data with the smallest cache size corresponding to the highest-priority AC.

[0129] In addition, when selecting target data to be transmitted in combination with the above-mentioned multiple implementations, a priority ranking can be established for the first rules in the multiple implementations. Generally, when multiple data to be transmitted associated with PPDUs are selected based on a first rule with a higher priority, selection can continue based on first rules with lower priorities until data to be transmitted associated with a PPDU is selected, which is the target data to be transmitted.

[0130] The above introduces the first rule in the embodiment of the present application. Accordingly, the first device associated with the target data to be transmitted selected according to the first rule satisfies one or more of the following: the bandwidth occupied by the first device is greater than the bandwidth occupied by other devices; the bandwidth occupied by the first device is less than the bandwidth occupied by other devices; the frequency domain interval between the bandwidth occupied by the first device and the main channel is less than the frequency domain interval between the bandwidth occupied by other devices and the main channel; the importance of the data to be transmitted of the first device is higher than the importance of the data to be transmitted of other devices; the QoS requirement of the data to be transmitted of the first device is higher than the QoS requirement of the data to be transmitted of other devices; the priority of the data to be transmitted of the first device is higher than the priority of the data to be transmitted of other devices; the duration of the first device's request to reserve transmission resources is less than the duration of the other devices' request to reserve transmission resources; the duration of the first device's request to reserve transmission resources is greater than the duration of the other devices' request to reserve transmission resources. duration; the amount of data to be transmitted of the first device is lower than the amount of data to be transmitted of other devices; the amount of data to be transmitted of the first device is higher than the amount of data to be transmitted of other devices; the receiving address corresponding to the data to be transmitted of the first device is greater than the receiving address corresponding to the data to be transmitted of other devices; the receiving address corresponding to the data to be transmitted of the first device is smaller than the receiving address corresponding to the data to be transmitted of other devices; the sending address corresponding to the data to be transmitted of the first device is greater than the sending address corresponding to the data to be transmitted of other devices; the sending address corresponding to the data to be transmitted of the first device is smaller than the sending address corresponding to the data to be transmitted of other devices; the amount of data to be transmitted corresponding to the target AC in the first device is lower than the amount of data to be transmitted corresponding to the target AC in other devices; the amount of data to be transmitted corresponding to the target AC in the first device is higher than the amount of data to be transmitted corresponding to the target AC in other devices.

[0131] In some implementations, the multiple PPDUs come from multiple devices including the first device. Accordingly, the aforementioned other devices are devices other than the first device in the multiple devices.

[0132] The above describes the first device selected based on the first rule in an embodiment of the present application. The following describes a scheme for indicating whether transmission of data to be transmitted is allowed in an embodiment of the present application.

[0133] In some implementations, the method further includes: the first device receiving second information, wherein the second information is used to indicate that the first device is allowed to transmit the data to be transmitted. In other words, the first device that receives the second information can transmit the data to be transmitted. Conversely, the first device that does not receive the second information cannot transmit the data to be transmitted.

[0134] In the embodiments of the present application, the device that sends the second information is not limited. In some implementations, the device that sends the second information may be the receiving device of the first PPDU, as described below in conjunction with Figure 7. In other implementations, the device that sends the second information may be a different receiving device from the receiving device of the first PPDU.

[0135] Of course, in the embodiments of the present application, the second information can be used to indicate whether to allow or deny the first device to transmit the data to be transmitted. For example, if the second information indicates that the first device is allowed to transmit the data to be transmitted, the first device that receives the first information can transmit the data to be transmitted. For another example, if the second information indicates that the first device is denied transmission of the data to be transmitted, the first device that receives the first information does not transmit the data to be transmitted.

[0136] In some implementations, the second information may be carried in a PSDU. In this case, the scrambling seed used by the PSDU carrying the second information may be the same as the scrambling seed used by the PSDU in the first PPDU.

[0137] In some implementations, the second information may be carried in a feedback frame for the first PPDU, and thus, the second information may also be referred to as "feedback information." In other implementations, the second information is carried in a trigger frame, which is used to trigger the transmission of the data to be transmitted.

[0138] In some implementations, the transmission of the first PPDU satisfies one or more of the following rules: the sender of the first PPDU is a station that is not an access point; if the sender of the first PPDU is an access point AP, the second device is an AP other than the AP.

[0139] Generally speaking, the scheduling capability of an AP is higher than that of a non-AP STA. Therefore, the transmitter of the first PPDU may be specified as a non-AP STA, which helps to improve the rationality of scheduling based on the first PPDU.

[0140] In some implementations, if the sender of the first PPDU is an AP, the second device is an AP other than the AP. This means that the AP can only send the first PPDU to other APs. This is because APs typically have high scheduling capabilities. Having other APs determine whether to allow transmission of pending data based on the first PPDU helps improve scheduling efficiency. Of course, in this embodiment of the present application, the receiver of the first PPDU can be itself. This means that the AP can send the first PPDU to itself or to other APs.

[0141] In some implementations, the transmission resources for transmitting the data to be transmitted may be the same as the transmission resources for transmitting the first PPDU. In other implementations, the transmission resources for transmitting the data to be transmitted may be different from the transmission resources for transmitting the first PPDU.

[0142] For ease of understanding, the following describes the process of scheduling by the second device based on the first PPDU in an embodiment of the present application in conjunction with Figures 4 and 5.

[0143] The method shown in Figure 4 includes steps S410 to S440. In step S410, a transmitting device transmits a first PPDU to a receiving device.

[0144] In step S420, the receiving device receives the first PPDU before timing out.

[0145] If the receiving device receives the first PPDU before the timeout, step S430 is executed. If the receiving device does not receive the first PPDU before the timeout, step S440 is executed.

[0146] In step S430, the receiving device sends a PPDU carrying the second information to the sending device.

[0147] In step S440 , the transmitting device competes for the channel again.

[0148] 5 , it is assumed that the first device sending the first PPDU to the second device includes device 1 and device 2, wherein the first PPDU sent by device 1 is PPDU1, and the first PPDU sent by device 2 is PPDU2. The method shown in FIG5 includes steps S510 to S560.

[0149] It should be noted that FIG5 mainly describes the processing process of the second device, and the introduction of similar terms can be found above. For example, PPDU1 and PPDU2 can be any of the first PPDUs described above.

[0150] In step S510 , the second device receives PPDU1 sent by device 1 .

[0151] In step S520 , the second device determines whether it has received a first PPDU sent by another device at the same time.

[0152] If the second device receives PPDU2 sent by device 2, step S530 is executed. If the second device does not receive PPDUs sent by other devices at the same time, step S550 may be executed.

[0153] In step S530 , the second device compares the received PPDU1 and PPDU2 .

[0154] In step S540, the second device determines, based on the first rule, whether to allow transmission of the data to be transmitted associated with PPDU1 or the data to be transmitted associated with PPDU2. For an introduction to the first rule, please refer to the above.

[0155] In step S550 , if the transmission of the data to be transmitted associated with PPDU1 is allowed, the second device sends second information to the first device to indicate that the transmission of the data to be transmitted associated with PPDU1 is allowed.

[0156] In step S560 , if the transmission of the to-be-transmitted data associated with PPDU2 is rejected, the second device does not send the second information to the first device.

[0157] The above describes the transmission method of the first PPDU and the second information in the embodiment of the present application. The following describes the scheme of using the embodiment of the present application in different scenarios in combination with Figures 6 to 19.

[0158] Figure 6 is a schematic diagram of a wireless communication method according to an embodiment of the present application. Assume that AP1, STA1, and STA2 are located in the same BSS, and STA2 and STA3 simultaneously compete for the channel based on a backoff mechanism, and both STAs obtain the right to use the channel at the same time. At this time, STA2 and STA3 simultaneously send the first PPDU to AP1 on the channel, wherein STA2 occupies dRU1 to transmit PPDU1. STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. Accordingly, AP1 can determine the data transmission between STA2 and STA3 based on the first rule, PPDU1, and PPDU2.

[0159] It should be noted that Figure 6 does not specifically describe how AP1 arranges data transmission with STA2 and STA3 based on the received information. In some implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a trigger frame to STA2 to trigger the transmission of STA2's pending data. In other implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a feedback frame (e.g., a Clear to Send (CTS)) to STA2, and accordingly, STA2 becomes the TXOP holder.

[0160] It should be noted that AP1 can use the TXOPs of STA2 and STA3 to schedule data transmission between AP1 and STA2 and STA3. Alternatively, AP1 can contend for the channel itself and schedule data transmission between AP1 and STA2 and STA3. This means that data transmission between AP1 and STA2 and STA3 can be performed in different TXOPs than the transmission of PPDU1 and PPDU2.

[0161] Figure 7 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 7 describes a scheme for channel contention by sending a first PPDU in a scenario where a contention channel based on a backoff rule is not used. Referring to Figure 7, when a TXOP on a channel ends, after an IFS, STA2 and STA3 simultaneously send the first PPDU to the AP on the channel, wherein STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. Accordingly, AP1 can determine the data transmission between STA2 and STA3 based on the first rule, PPDU1, and PPDU2.

[0162] Compared to the solution shown in Figure 6, the difference is that when a TXOP on the channel ends, STA2 and STA3 can directly send a PPDU (for example, a PPDU of a shorter control frame) after an IFS (such as DIFS, SIFS, PIFS, etc.). Subsequently, AP1 can arrange data transmission between STA2 and STA3 based on the received information.

[0163] It should be noted that Figure 7 does not specifically describe how AP1 arranges data transmission with STA2 and STA3 based on the received information. In some implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a trigger frame to STA2 to trigger the transmission of STA2's pending data. In other implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a feedback frame (e.g., CTS) to STA2, and accordingly, STA2 becomes the TXOP holder.

[0164] It should be noted that AP1 can use the TXOPs of STA2 and STA3 to schedule data transmission between AP1 and STA2 and STA3. Alternatively, AP1 can contend for the channel itself and schedule data transmission between AP1 and STA2 and STA3. This means that data transmission between AP1 and STA2 and STA3 can be performed in different TXOPs than the transmission of PPDU1 and PPDU2.

[0165] Figure 8 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 8 describes a scheme for channel contention by sending a first PPDU without using a backoff mechanism to compete for the channel. As shown in Figure 8, after an IFS (such as DIFS, SIFS, PIFS, etc.) time after the start of the TWT SP, STA2 and STA3 simultaneously send the first PPDU to the AP on the channel, wherein STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. Accordingly, AP1 can determine the data transmission between STA2 and STA3 based on the first rule, PPDU1 and PPDU2.

[0166] It should be noted that Figure 8 does not specifically describe how AP1 arranges data transmission with STA2 and STA3 based on the received information. In some implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a trigger frame to STA2 to trigger the transmission of STA2's pending data. In other implementations, if AP1 determines that STA2's pending data can be transmitted, it can send a feedback frame (e.g., CTS) to STA2, and accordingly, STA2 becomes the TXOP holder.

[0167] It should be noted that AP1 can use the TXOPs of STA2 and STA3 to schedule data transmission between AP1 and STA2 and STA3. Alternatively, AP1 can contend for the channel itself and schedule data transmission between AP1 and STA2 and STA3. This means that data transmission between AP1 and STA2 and STA3 can be performed in different TXOPs than the transmission of PPDU1 and PPDU2.

[0168] In addition, the method shown in Figure 8 can also be applied to scenarios where a backoff mechanism is used to contend for a channel. The IFS shown in Figure 8 can also be a backoff time.

[0169] Figure 9 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 9 describes a scheme for transmitting an RTS frame in the PSDU of the first PPDU. As shown in Figure 9, after the backoff time or an IFS, STA2 and STA3 simultaneously send PPDU1 and PPDU2 to AP1 on the channel, wherein STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. The RTS frame is carried in PSDU1 in PPDU1 to reserve TXOP, and the request to send (RTS) frame is carried in PSDU2 in PPDU2 to reserve TXOP.

[0170] Accordingly, AP1 can designate one of the stations as the TXOP holder based on the content of the RTS frame (e.g., the requested TXOP duration). Continuing with Figure 9, AP1 sends a CTS to STA2, indicating that STA2 has become the TXOP holder. Accordingly, STA2 can send one or more PPDUs to AP1 within its TXOP to carry the data to be transmitted. The CTS and the PPDU carrying the data to be transmitted can be located in the same TXOP, and an IFS can separate the CTS and the PPDU carrying the data to be transmitted.

[0171] In an embodiment of the present application, the RTS frame in the PPDU can be replaced by a BSR.

[0172] Figure 10 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 10 describes a scheme for transmitting a BSR in a PPDU. As shown in Figure 10, after the backoff time or one IFS, STA2 and STA3 simultaneously send PPDU1 and PPDU2 to AP1 on the channel. STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2. The preamble used by PPDU1 and the preamble used by PPDU2 are the same. The BSR is carried in PSDU1 in PPDU1 and PSDU2 in PPDU2.

[0173] Accordingly, AP1 can specify one of the stations to transmit the data to be transmitted based on the buffer status in the BSR. Continuing with Figure 10, AP1 sends TF to STA2 and STA3 to trigger STA2 and STA3 to transmit the data to be transmitted. Accordingly, in response to TF, STA2 and STA3 can send one or more PPDUs to carry the data to be transmitted. Afterwards, AP1 can send BA to STA2 and STA3 to indicate that the data to be transmitted has been correctly received. The BA and the PPDU carrying the data to be transmitted can be located in one TXOP, and an IFS can be spaced between the BA and the PPDU carrying the data to be transmitted. In addition, the TF and PPDU1 can be located in one TXOP, and an IFS can be spaced between the TF and PPDU1.

[0174] Figure 11 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 11 describes a scheme for transmitting data frames in a PPDU. Referring to Figure 11, after the backoff time or one IFS, STA2 and STA3 simultaneously send PPDU1 and PPDU2 to AP1 on the channel, wherein STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. PSDU1 in PPDU1 and PSDU2 in PPDU2 carry data frames. Accordingly, when AP1 successfully receives these data frames, AP1 will send an ACK or BA frame to STA2 and STA3 to feedback whether the data frames have been successfully received. The BA and the corresponding PPDU can be located in one TXOP, and the BA and the corresponding PPDU can be separated by one IFS.

[0175] Figure 12 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 12 describes a scheme for transmitting PPDUs and data frames in the same TXOP, wherein the TXOP may include a dRU. Referring to Figure 12, after a backoff time or one IFS, STA2 and STA3 simultaneously send PPDU1 and PPDU2 to AP1 on the channel, wherein STA2 occupies dRU1 to transmit PPDU1, and STA3 occupies dRU2 to transmit PPDU2, and the preamble used by PPDU1 and the preamble used by PPDU2 are the same. PSDU1 in PPDU1 and PSDU2 in PPDU2 carry data frames. Accordingly, when AP1 successfully receives these data frames, AP1 will send an ACK or BA frame to STA2 and STA3 to feedback whether the data frames have been successfully received. The ACK or BA frame and the corresponding PPDU may be located in the same TXOP, and there may be an IFS between the ACK or BA frame and the corresponding PPDU.

[0176] In some implementations, if the ACK or BA frame indicates that the data was not successfully received, STA2 and STA3 may resend the data frame using the same DRU. The ACK or BA frame and the corresponding PPDU may be located in the same TXOP, and an IFS may be spaced between the ACK or BA frame and the corresponding PPDU.

[0177] Figure 13 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 13 describes the method of using an embodiment of the present application when multiple BSSs coexist. Referring to Figure 13, it is assumed that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. Among them, STA3 sends PPDU1 to AP1 after the backoff time, and PPDU1 occupies dRU1 for transmission. In addition, AP2 also completes the backoff and sends PPDU2 to STA4, and PPDU2 occupies dRU2 for transmission.

[0178] Accordingly, both AP1 and STA4 can receive PPDU1 and PPDU2. At this time, AP1 and AP2 can determine whether AP2 or STA3 transmits the data to be transmitted based on the first rule and PPDU1 and PPDU2.

[0179] In an embodiment of the present application, the above-mentioned backoff time may also be IFS, where IFS may include DIFS, SIFS, and PIFS, for example.

[0180] Figure 14 is a schematic diagram of a wireless communication method according to an embodiment of the present application. The method shown in Figure 14 describes the method of using an embodiment of the present application when multiple BSSs coexist. Referring to Figure 14, it is assumed that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. STA3 sends PPDU1 to AP1 after the backoff time, and PPDU1 occupies dRU1 for transmission. In addition, AP2 also completes the backoff and sends PPDU2 to STA4, and PPDU2 occupies dRU2 for transmission.

[0181] Accordingly, both AP1 and STA4 can receive PPDU1 and PPDU2. Accordingly, based on the first rule and PPDU1 and PPDU2, AP1 can determine whether AP2 or STA3 should transmit the data to be transmitted. As shown in Figure 14 , AP1 can send a feedback signal to STA3 to instruct it to transmit the data to be transmitted. Accordingly, STA4 does not send a feedback signal. The feedback signal and the corresponding PPDU can be located within the same TXOP, and there can be an interval of one IFS between the feedback signal and the corresponding PPDU.

[0182] Figure 15 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in Figure 15 , assume that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. STA3 sends PPDU1 to AP1 after the backoff time has elapsed, and PPDU1 occupies dRU1 for transmission. AP2 also completes the backoff and sends PPDU2 to STA4, which occupies dRU2 for transmission.

[0183] Accordingly, the receivers of PPDU1 and PPDU2 use the same DRU as their transmitters to send feedback signals. As shown in Figure 15, AP1 uses DRU1 to send a feedback frame to STA3, instructing STA3 to transmit the data to be transmitted. STA4 uses DRU2 to send a feedback frame to AP2, instructing STA3 to transmit the data to be transmitted. The feedback frame and the corresponding PPDU can be located within the same TXOP, and an IFS can separate the feedback frame and the corresponding PPDU.

[0184] Figure 16 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in Figure 16 , assume that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. STA3 sends PPDU1 to AP1 after the backoff time has elapsed, and PPDU1 occupies dRU1 for transmission. AP2 also completes the backoff and sends PPDU2 to STA4, which occupies dRU2 for transmission.

[0185] Accordingly, AP1 determines, based on the first rule, that STA3 is permitted to transmit the data to be transmitted. Therefore, AP1 sends PPDU3, which carries the second information, to STA3, indicating that STA3 is permitted to transmit the data to be transmitted. In response to receiving PPDU3, STA3 sends PPDU4, which carries the data to be transmitted, to AP1. Subsequently, AP1 sends PPDU5 to STA3 to indicate whether the data to be transmitted was successfully received. If AP1 successfully receives the data to be transmitted, STA3 sends MU RTS TXS to AP2 to share the TXOP with AP2. Accordingly, after AP2 sends CTS to STA3, AP2 can use this TXOP to send PPDU6, which carries the data to be transmitted, to STA4. STA4 can then send PPDU7 (e.g., carrying BA or ACK) to AP2 to indicate whether the data to be transmitted was successfully received.

[0186] It should be noted that the two adjacent information exchanges shown in Figure 16 may be located in one TXOP and separated by one IFS. For example, PPDU7 and PPDU6 may be located in one TXOP and separated by one IFS.

[0187] Figure 17 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in Figure 17, it is assumed that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. STA3 sends PPDU1 to AP1 after the backoff time, and PPDU1 occupies dRU1 to dRU4 for transmission. In addition, AP2 also completes the backoff and sends PPDU2 to STA4, and PPDU2 occupies dRU5 to dRU6 for transmission. Each dRU in dRU1 to dRU6 occupies 20MHz of bandwidth, so STA3 occupies 80MHz of bandwidth. AP2 occupies 40MHz of bandwidth.

[0188] Accordingly, because the bandwidth occupied by AP1 communication is greater than the bandwidth occupied by STA3 communication, AP1 transmits the feedback frame, allowing STA3 to transmit the data to be transmitted, and does not send the feedback frame to AP2. The feedback frame and the corresponding PPDU can be located in the same TXOP, and an IFS can be separated from the feedback frame and the corresponding PPDU.

[0189] In some implementations, STA3 can occupy the same dRU on each channel, that is, dRU1-dRU4 can be the same dRU located in four different channels. AP2 can occupy the same dRU on each channel, that is, dRU5-dRU6 can be the same dRU located in two different channels.

[0190] Figure 18 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in Figure 18, it is assumed that BSS1 includes AP1 and STA3, BSS2 includes AP2 and STA4, and the first PPDU includes PPDU1 and PPDU2. STA3 sends PPDU1 to AP1 after the backoff time, and PPDU1 occupies dRU1 to dRU4 for transmission. In addition, AP2 also completes the backoff and sends PPDU2 to STA4, and PPDU2 occupies dRU5 to dRU6 for transmission. Each dRU in dRU1 to dRU6 occupies 20MHz of bandwidth, so STA3 occupies 80MHz of bandwidth. AP2 occupies 40MHz of bandwidth.

[0191] In some implementations, STA3 can occupy a different dRU on each channel, that is, dRU1-dRU4 can be different dRUs located in four different channels. AP2 can occupy a different dRU on each channel, that is, dRU5-dRU6 can be different dRUs located in two different channels.

[0192] In some implementations, the feedback frame and the corresponding PPDU may be located in one TXOP, and an IFS may be spaced between the feedback frame and the corresponding PPDU.

[0193] In an embodiment of the present application, the transmitting end can occupy different DRUs in different channels to transmit PPDUs with the same content, which is conducive to improving the reliability of transmission.

[0194] Figure 19 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in Figure 19 , assume that BSS1 includes AP1 and STA3, and the primary channel corresponding to AP1 and STA3 is CH1. BSS2 includes AP2 and STA4, and the primary channel corresponding to AP2 and STA4 is CH3. The first PPDU includes PPDU1 and PPDU2.

[0195] After the backoff period, STA3 sends PPDU1 to AP1. PPDU1 occupies dRU1 on the primary channels CH1-CH4. AP2 also completes its backoff and sends PPDU2 to STA4. This PPDU2 occupies dRU2 on the primary channels CH3-CH4. Each dRU in dRU1-dRU6 occupies 20 MHz of bandwidth, so STA3 occupies a total of 80 MHz of bandwidth. AP2 occupies a total of 40 MHz of bandwidth.

[0196] Based on the first rule described above in conjunction with Implementation 8, since the frequency domain spacing between the 40 MHz bandwidth resources corresponding to CH1 and CH2 and the bandwidth corresponding to CH1 is small, CH1 is occupied by STA3. Accordingly, AP1 sends a feedback frame carrying the second information to STA3 on CH1 and CH2. Since the frequency domain spacing between the 40 MHz bandwidth resources corresponding to CH3 and CH4 and the bandwidth corresponding to CH3 is small, CH3 is used by STA4. AP2 can send a feedback frame carrying the second information to AP2 on CH3 and CH4. The feedback frame and the corresponding PPDU can be located in the same TXOP, and an IFS can separate the feedback frame and the corresponding PPDU.

[0197] The above describes the method of the embodiment of the present application, and the following describes the frame structure of the first PPDU in the embodiment of the present application.

[0198] In some implementations, the first PPDU carries a first field, which is used to carry one or more of the following fields: a second field, which is used to indicate the bandwidth required to transmit the first PPDU; and a third field, which is used to indicate the duration required to transmit the first PPDU.

[0199] In some implementations, the first field is located between the service field of the first PPDU and the PSDU field of the first PPDU, or the first field is located between the long training field of the first RU in the first PPDU and the data field of the first PPDU.

[0200] In some implementations, the first PPDU includes a long training field for the first RU and / or a short training field for the first RU.

[0201] For ease of understanding, the format of the first PPDU in an embodiment of the present application is introduced below in conjunction with Figure 20. As shown in Figure 20, the duplicate preamble field of the first PPDU includes the fields between the legacy short training field (L-STF) and the dRU-LTF: L-STF, legacy long training field (L-LTF), legacy signal field (L-SIG), repeated legacy signal (RL-SIG), universal signaling field (U-SIG), dRU-STF and dRU-LTF. The physical layer service data unit (PSDU) includes a data field and a packet extension (PE) field.

[0202] The U-SIG field contains a physical layer version identifier (PHY version identifier), which indicates that the first PPDU uses a repeated preamble (dRU) PPDU format. Accordingly, when a receiving station receives this field, it can determine the format of the PPDU and, after parsing the repeated preamble, attempt to receive the PSDU on each dRU. It should be understood that this field can be located in the SIG field within the data field.

[0203] The dRU-STF field and the dRU-LTF field are used to carry the short training field and the long training field of the corresponding PSDU on the dRU.

[0204] The data field may include a service field, a SIG field, and a PSDU field, wherein the service field includes a scrambler initialization field and a DBO counter field.

[0205] The scrambler initialization field is used to indicate the scrambling seed and bandwidth. The setting method of this field can refer to the setting of the traditional communication protocol.

[0206] DBO counter field, this field is used to carry a random number indicating the importance of the data to be transmitted, see the above introduction in conjunction with the first information.

[0207] In some implementations, the system may define a random number interval. For example, the system defines CW_DBO_MAX and CW_DBO_MIN, and accordingly, the value of the DBO counter is a random number between CW_DBO_MAX and CW_DBO_MIN.

[0208] The SIG field may include a physical layer version identifier field, a bandwidth field, an uplink / downlink field, a BSS color field, a TXOP field, a disregard field, and a validate field. The bandwidth field indicates the bandwidth used to send the first PPDU. The TXOP field indicates the TXOP duration required to transmit the data to be transmitted using the bandwidth indicated by the bandwidth field.

[0209] In some implementations, if the parameters in the SIG field (e.g., between the service field and the PSDU field) are predetermined, the SIG field may not be required in the PPDU. Alternatively, the SIG field may be added between the dRU-LTF field and the data field and transmitted using the corresponding dRU. This allows the parameters in the SIG field to be processed at the PHY layer while all the contents of the data field are uploaded to the MAC layer for processing.

[0210] In some implementations, the PPDU format may not include the dRU-STF field and / or the dRU-LTF field.

[0211] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, so for parts not described in detail, reference can be made to the above method embodiments.

[0212] FIG21 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device 2100 shown in FIG21 is a first device, and the communication device 2100 includes a sending unit 2110 .

[0213] The sending unit 2110 is used to send a first physical layer protocol data unit PPDU to the second device through a first resource unit RU, where the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs meet one or more of the following requirements: the lengths of the multiple PPDUs are the same; the preamble code sequences of the multiple PPDUs are the same; and the modulation and coding strategy MCS used by the multiple PPDUs is the same.

[0214] The communication device 2100 includes units or modules for executing the method steps corresponding to Figures 3 to 20. The method flow has been described in detail in the previous embodiments. The modules in this embodiment have the same functions or perform the same steps, and will not be repeated here. However, those skilled in the art will appreciate that the text descriptions corresponding to Figures 3 to 20 can be incorporated into this embodiment and correspond to the modules in the communication device 2100.

[0215] FIG22 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device 2200 shown in FIG22 is a second device, and the communication device 2200 includes a receiving unit 2210 .

[0216] The receiving unit 2210 is used to receive a first physical layer protocol data unit PPDU sent by a first device through a first resource unit RU, where the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs meet one or more of the following requirements: the lengths of the multiple PPDUs are the same; the preamble code sequences of the multiple PPDUs are the same; and the modulation and coding strategy MCS used by the multiple PPDUs is the same.

[0217] The communication device 2200 includes units or modules for executing the method steps corresponding to Figures 3 to 20. The method flow has been described in detail in the previous embodiments. The modules in this embodiment have the same functions or perform the same steps, and will not be repeated here. However, those skilled in the art will appreciate that the text descriptions corresponding to Figures 3 to 20 can be incorporated into this embodiment and correspond to the modules in the communication device 2200.

[0218] In an optional embodiment, the sending unit 2110 may be a transceiver 2330. The communication device 2100 may further include a processor 2310 and a memory 2320, as specifically shown in FIG23 .

[0219] In an optional embodiment, the receiving unit 2210 may be a transceiver 2330. The communication device 2200 may further include a processor 2310 and a memory 2320, as specifically shown in FIG23 .

[0220] Figure 23 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 23 indicate that the unit or module is optional. Device 2300 may be used to implement the method described in the above method embodiment. Device 2300 may be a chip, a terminal device, or a network device.

[0221] The device 2300 may include one or more processors 2310. The processor 2310 may support the device 2300 to implement the method described in the method embodiment above. The processor 2310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0222] The apparatus 2300 may further include one or more memories 2320. The memories 2320 store programs that can be executed by the processor 2310, causing the processor 2310 to perform the methods described in the above method embodiments. The memories 2320 may be independent of the processor 2310 or integrated into the processor 2310.

[0223] The apparatus 2300 may further include a transceiver 2330. The processor 2310 may communicate with other devices or chips via the transceiver 2330. For example, the processor 2310 may transmit and receive data with other devices or chips via the transceiver 2330.

[0224] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0225] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0226] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0227] It should be understood that the “feedback signal”, “feedback frame” and “feedback information” in the embodiments of the present application have the same meaning in some scenarios and can be replaced with each other.

[0228] In addition, 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" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0229] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0230] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0231] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0232] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0233] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0234] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0235] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0236] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include a WiFi protocol and related protocols used in future WiFi communication systems, and the present application does not limit this.

[0237] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0238] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0239] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0240] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part 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, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. 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 via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. 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 or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0241] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that: include: A first device sends a first physical layer protocol data unit (PPDU) to a second device through a first resource unit (RU). The first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU. The multiple PPDUs meet one or more of the following conditions: The multiple PPDUs have the same length; The preamble code sequences of the multiple PPDUs are the same; The modulation and coding scheme MCS used by the multiple PPDUs is the same.

2. The method according to claim 1, wherein The first PPDU carries first information, where the first information is used to determine whether the first device is allowed to transmit the data to be transmitted.

3. The method according to claim 2, wherein The first information is used to indicate one or more of the following: Quality of service (QoS) requirements of the data to be transmitted; The importance of the data to be transmitted; The amount of data to be transmitted; The priority associated with the data to be transmitted; The first device requests a duration for reserving transmission resources.

4. The method according to claim 3, wherein The priority associated with the data to be transmitted includes the priority of the access category AC corresponding to the data to be transmitted; and / or the priority of the transaction identifier TID corresponding to the data to be transmitted.

5. The method according to claim 3 or 4, wherein: The priority associated with the data to be transmitted and / or the data volume of the data to be transmitted is carried in a buffer status report BSR of the data to be transmitted.

6. The method according to any one of claims 3 to 5, wherein: The first information is used to indicate the importance of the data to be transmitted. The first information carries a random number, and the value of the random number is used to indicate the importance of the data to be transmitted.

7. The method according to claim 6, wherein The first PPDU includes a DBO counter field, where the DBO counter field is used to carry the random number.

8. The method according to any one of claims 1 to 7, wherein The method further comprises: The first device receives second information, where the second information is used to indicate that the first device is allowed to transmit the data to be transmitted.

9. The method according to claim 8, wherein The second information is carried in a feedback frame for the first PPDU; or the second information is carried in a trigger frame, and the trigger frame is used to trigger transmission of the data to be transmitted.

10. The method according to claim 8 or 9, characterized in that The multiple PPDUs come from multiple devices including the first device, where the multiple devices other than the first device are other devices, and the first device satisfies one or more of the following conditions: The bandwidth occupied by the first device is greater than the bandwidth occupied by the other devices; The bandwidth occupied by the first device is smaller than the bandwidth occupied by the other devices; The frequency domain interval between the bandwidth occupied by the first device and the main channel is smaller than the frequency domain interval between the bandwidth occupied by the other devices and the main channel; The importance of the data to be transmitted by the first device is higher than the importance of the data to be transmitted by the other devices; The QoS requirement of the data to be transmitted by the first device is higher than the QoS requirement of the data to be transmitted by the other devices; The priority associated with the data to be transmitted by the first device is higher than the priority of the data to be transmitted by the other devices; The duration for which the first device requests to reserve transmission resources is shorter than the duration for which the other devices request to reserve transmission resources; The duration for which the first device requests to reserve transmission resources is longer than the duration for which the other devices request to reserve transmission resources; The amount of data to be transmitted by the first device is lower than the amount of data to be transmitted by the other devices; The amount of data to be transmitted by the first device is greater than the amount of data to be transmitted by the other devices; The receiving address corresponding to the data to be transmitted of the first device is greater than the receiving address corresponding to the data to be transmitted of the other devices; The receiving address corresponding to the data to be transmitted of the first device is smaller than the receiving address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is greater than the sending address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is smaller than the sending address corresponding to the data to be transmitted of the other devices; The amount of data to be transmitted corresponding to the target AC in the first device is lower than the amount of data to be transmitted corresponding to the target AC in the other devices; The data volume of the to-be-transmitted data corresponding to the target AC in the first device is greater than the data volume of the to-be-transmitted data corresponding to the target AC in the other devices.

11. The method according to any one of claims 1 to 10, wherein The first PPDU carries a first field, where the first field is used to carry one or more of the following fields: The second field is used to indicate the bandwidth required to transmit the first PPDU; The third field is used to indicate the duration required to transmit the first PPDU.

12. The method according to claim 11, wherein The first field is located between the service field of the first PPDU and the PSDU field of the first PPDU, or The first field is located between a long training field of the first RU in the first PPDU and a data field of the first PPDU.

13. The method according to any one of claims 1 to 12, wherein The first PPDU includes a long training field of the first RU and / or a short training field of the first RU.

14. The method according to any one of claims 1 to 13, wherein The transmission of the first PPDU satisfies one or more of the following rules: The sender of the first PPDU is a station that is not an access point; If the sender of the first PPDU is an access point AP, the second device is an AP other than the AP.

15. The method according to any one of claims 1 to 14, wherein The first RU is determined based on a basic service set BSS to which the first device belongs.

16. The method according to any one of claims 1 to 15, wherein The first RU is a regular RU or a distributed resource unit dRU.

17. The method according to any one of claims 1 to 16, wherein The transmit power of the plurality of PPDUs is determined based on an expected receive power of the second device.

18. A wireless communication method, characterized in that: include: A second device receives, through a first resource unit RU, a first physical layer protocol data unit (PPDU) sent by the first device. The first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU. The multiple PPDUs meet one or more of the following conditions: The multiple PPDUs have the same length; The preamble code sequences of the multiple PPDUs are the same; The modulation and coding scheme MCS used by the multiple PPDUs is the same.

19. The method according to claim 18, wherein The first PPDU carries first information, where the first information is used to determine whether the first device is allowed to transmit the data to be transmitted.

20. The method according to claim 19, wherein The first information is used to indicate one or more of the following: Quality of service (QoS) requirements of the data to be transmitted; The importance of the data to be transmitted; The amount of data to be transmitted; The priority associated with the data to be transmitted; The first device requests a duration for reserving transmission resources.

21. The method according to claim 20, wherein The priority associated with the data to be transmitted includes the priority of the access category AC corresponding to the data to be transmitted; and / or the priority of the transaction identifier TID corresponding to the data to be transmitted.

22. The method according to claim 20 or 21, wherein: The priority associated with the data to be transmitted and / or the data volume of the data to be transmitted is carried in a buffer status report BSR of the data to be transmitted.

23. The method according to any one of claims 20 to 22, wherein: The first information is used to indicate the importance of the data to be transmitted. The first information carries a random number, and the value of the random number is used to indicate the importance of the data to be transmitted.

24. The method according to claim 23, wherein The first PPDU includes a DBO counter field, where the DBO counter field is used to carry the random number.

25. The method according to any one of claims 18 to 24, wherein The method further comprises: The second device receives second information, where the second information is used to indicate that the first device is allowed to transmit the data to be transmitted.

26. The method of claim 25, wherein: The second information is carried in a feedback frame for the first PPDU; or the second information is carried in a trigger frame, and the trigger frame is used to trigger transmission of the data to be transmitted.

27. The method according to claim 25 or 26, wherein The multiple PPDUs come from multiple devices including the first device, where the multiple devices other than the first device are other devices, and the first device satisfies one or more of the following conditions: The bandwidth occupied by the first device is greater than the bandwidth occupied by the other devices; The bandwidth occupied by the first device is smaller than the bandwidth occupied by the other devices; The frequency domain interval between the bandwidth occupied by the first device and the main channel is smaller than the frequency domain interval between the bandwidth occupied by the other devices and the main channel; The importance of the data to be transmitted by the first device is higher than the importance of the data to be transmitted by the other devices; The QoS requirement of the data to be transmitted by the first device is higher than the QoS requirement of the data to be transmitted by the other devices; The priority associated with the data to be transmitted by the first device is higher than the priority of the data to be transmitted by the other devices; The duration for which the first device requests to reserve transmission resources is shorter than the duration for which the other devices request to reserve transmission resources; The duration for which the first device requests to reserve transmission resources is longer than the duration for which the other devices request to reserve transmission resources; The amount of data to be transmitted by the first device is lower than the amount of data to be transmitted by the other devices; The amount of data to be transmitted by the first device is greater than the amount of data to be transmitted by the other devices; The receiving address corresponding to the data to be transmitted of the first device is greater than the receiving address corresponding to the data to be transmitted of the other devices; The receiving address corresponding to the data to be transmitted of the first device is smaller than the receiving address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is greater than the sending address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is smaller than the sending address corresponding to the data to be transmitted of the other devices; The amount of data to be transmitted corresponding to the target AC in the first device is lower than the amount of data to be transmitted corresponding to the target AC in the other devices; The data volume of the to-be-transmitted data corresponding to the target AC in the first device is greater than the data volume of the to-be-transmitted data corresponding to the target AC in the other devices.

28. The method according to any one of claims 18 to 27, wherein The first PPDU carries a first field, where the first field is used to carry one or more of the following fields: The second field is used to indicate the bandwidth required to transmit the first PPDU; The third field is used to indicate the duration required to transmit the first PPDU.

29. The method of claim 28, wherein The first field is located between the service field of the first PPDU and the PSDU field of the first PPDU, or The first field is located between a long training field of the first RU in the first PPDU and a data field of the first PPDU.

30. The method according to any one of claims 18 to 29, wherein The first PPDU includes a long training field of the first RU and / or a short training field of the first RU.

31. The method according to any one of claims 18 to 30, wherein The transmission of the first PPDU satisfies one or more of the following rules: The sender of the first PPDU is a station that is not an access point; If the sender of the first PPDU is an access point AP, the second device is an AP other than the AP.

32. The method according to any one of claims 18 to 31, wherein The first RU is determined based on a basic service set BSS to which the first device belongs.

33. The method according to any one of claims 18 to 32, wherein The first RU is a regular RU or a distributed resource unit dRU.

34. The method according to any one of claims 18 to 33, wherein The transmit power of the plurality of PPDUs is determined based on an expected receive power of the second device.

35. A communication device, characterized in that: include: A sending unit, configured to send a first physical layer protocol data unit (PPDU) to a second device through a first resource unit (RU), where the first RU belongs to multiple RUs, and the multiple RUs carry multiple PPDUs including the first PPDU, where the multiple PPDUs meet one or more of the following conditions: The multiple PPDUs have the same length; The preamble code sequences of the multiple PPDUs are the same; The modulation and coding scheme MCS used by the multiple PPDUs is the same.

36. The communication device according to claim 35, wherein The first PPDU carries first information, where the first information is used to determine whether the first device is allowed to transmit the data to be transmitted.

37. The communication device according to claim 36, wherein The first information is used to indicate one or more of the following: Quality of service (QoS) requirements of the data to be transmitted; The importance of the data to be transmitted; The amount of data to be transmitted; The priority associated with the data to be transmitted; The first device requests a duration for reserving transmission resources.

38. The communication device according to claim 37, wherein The priority associated with the data to be transmitted includes the priority of the access category AC corresponding to the data to be transmitted; and / or the priority of the transaction identifier TID corresponding to the data to be transmitted.

39. The communication device according to claim 37 or 38, characterized in that The priority associated with the data to be transmitted and / or the data volume of the data to be transmitted is carried in a buffer status report BSR of the data to be transmitted.

40. The communication device according to any one of claims 37 to 39, wherein: The first information is used to indicate the importance of the data to be transmitted. The first information carries a random number, and the value of the random number is used to indicate the importance of the data to be transmitted.

41. The communication device according to claim 40, wherein The first PPDU includes a DBO counter field, where the DBO counter field is used to carry the random number.

42. The communication device according to any one of claims 35 to 41, characterized in that The communication device further includes: The receiving unit is configured to receive second information, where the second information is used to indicate that the first device is allowed to transmit the data to be transmitted.

43. The communication device according to claim 42, wherein The second information is carried in a feedback frame for the first PPDU; or the second information is carried in a trigger frame, and the trigger frame is used to trigger transmission of the data to be transmitted.

44. The communication device according to claim 42 or 43, characterized in that The multiple PPDUs come from multiple devices including the first device, where the multiple devices other than the first device are other devices, and the first device satisfies one or more of the following conditions: The bandwidth occupied by the first device is greater than the bandwidth occupied by the other devices; The bandwidth occupied by the first device is smaller than the bandwidth occupied by the other devices; The frequency domain interval between the bandwidth occupied by the first device and the main channel is smaller than the frequency domain interval between the bandwidth occupied by the other devices and the main channel; The importance of the data to be transmitted by the first device is higher than the importance of the data to be transmitted by the other devices; The QoS requirement of the data to be transmitted by the first device is higher than the QoS requirement of the data to be transmitted by the other devices; The priority associated with the data to be transmitted by the first device is higher than the priority of the data to be transmitted by the other devices; The duration for which the first device requests to reserve transmission resources is shorter than the duration for which the other devices request to reserve transmission resources; The duration for which the first device requests to reserve transmission resources is longer than the duration for which the other devices request to reserve transmission resources; The amount of data to be transmitted by the first device is lower than the amount of data to be transmitted by the other devices; The amount of data to be transmitted by the first device is greater than the amount of data to be transmitted by the other devices; The receiving address corresponding to the data to be transmitted of the first device is greater than the receiving address corresponding to the data to be transmitted of the other devices; The receiving address corresponding to the data to be transmitted of the first device is smaller than the receiving address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is greater than the sending address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is smaller than the sending address corresponding to the data to be transmitted of the other devices; The amount of data to be transmitted corresponding to the target AC in the first device is lower than the amount of data to be transmitted corresponding to the target AC in the other devices; The data volume of the to-be-transmitted data corresponding to the target AC in the first device is greater than the data volume of the to-be-transmitted data corresponding to the target AC in the other devices.

45. The communication device according to any one of claims 35 to 44, characterized in that The first PPDU carries a first field, where the first field is used to carry one or more of the following fields: The second field is used to indicate the bandwidth required to transmit the first PPDU; The third field is used to indicate the duration required to transmit the first PPDU.

46. ​​The communication device according to claim 45, wherein The first field is located between the service field of the first PPDU and the PSDU field of the first PPDU, or The first field is located between a long training field of the first RU in the first PPDU and a data field of the first PPDU.

47. The communication device according to any one of claims 35 to 46, characterized in that The first PPDU includes a long training field of the first RU and / or a short training field of the first RU.

48. The communication device according to any one of claims 35 to 47, characterized in that The transmission of the first PPDU satisfies one or more of the following rules: The sender of the first PPDU is a station that is not an access point; If the sender of the first PPDU is an access point AP, the second device is an AP other than the AP.

49. The communication device according to any one of claims 35 to 48, wherein: The first RU is determined based on a basic service set BSS to which the first device belongs.

50. The communication device according to any one of claims 35 to 49, characterized in that The first RU is a regular RU or a distributed resource unit dRU.

51. The communication device according to any one of claims 35 to 50, characterized in that The transmit power of the plurality of PPDUs is determined based on an expected receive power of the second device.

52. A communication device, characterized in that include: A receiving unit, configured to receive, through a first resource unit RU, a first physical layer protocol data unit PPDU sent by a first device, where the first RU belongs to multiple RUs, the multiple RUs carry multiple PPDUs including the first PPDU, and the multiple PPDUs meet one or more of the following conditions: The multiple PPDUs have the same length; The preamble code sequences of the multiple PPDUs are the same; The modulation and coding scheme MCS used by the multiple PPDUs is the same.

53. The communication device according to claim 52, wherein The first PPDU carries first information, where the first information is used to determine whether the first device is allowed to transmit the data to be transmitted.

54. The communication device according to claim 53, wherein The first information is used to indicate one or more of the following: Quality of service (QoS) requirements of the data to be transmitted; The importance of the data to be transmitted; The amount of data to be transmitted; The priority associated with the data to be transmitted; The first device requests a duration for reserving transmission resources.

55. The communication device according to claim 54, wherein The priority associated with the data to be transmitted includes the priority of the access category AC corresponding to the data to be transmitted; and / or the priority of the transaction identifier TID corresponding to the data to be transmitted.

56. The communication device according to claim 54 or 55, characterized in that The priority associated with the data to be transmitted and / or the data volume of the data to be transmitted is carried in a buffer status report BSR of the data to be transmitted.

57. The communication device according to any one of claims 54 to 56, characterized in that The first information is used to indicate the importance of the data to be transmitted. The first information carries a random number, and the value of the random number is used to indicate the importance of the data to be transmitted.

58. The communication device according to claim 57, wherein The first PPDU includes a DBO counter field, where the DBO counter field is used to carry the random number.

59. The communication device according to any one of claims 52 to 58, wherein: The communication device further includes: The receiving unit is configured to receive second information, where the second information is used to indicate that the first device is allowed to transmit the data to be transmitted.

60. The communication device according to claim 59, wherein The second information is carried in a feedback frame for the first PPDU; or the second information is carried in a trigger frame, and the trigger frame is used to trigger transmission of the data to be transmitted.

61. The communication device according to claim 59 or 60, characterized in that The multiple PPDUs come from multiple devices including the first device, where the multiple devices other than the first device are other devices, and the first device satisfies one or more of the following conditions: The bandwidth occupied by the first device is greater than the bandwidth occupied by the other devices; The bandwidth occupied by the first device is smaller than the bandwidth occupied by the other devices; The frequency domain interval between the bandwidth occupied by the first device and the main channel is smaller than the frequency domain interval between the bandwidth occupied by the other devices and the main channel; The importance of the data to be transmitted by the first device is higher than the importance of the data to be transmitted by the other devices; The QoS requirement of the data to be transmitted by the first device is higher than the QoS requirement of the data to be transmitted by the other devices; The priority associated with the data to be transmitted by the first device is higher than the priority of the data to be transmitted by the other devices; The duration for which the first device requests to reserve transmission resources is shorter than the duration for which the other devices request to reserve transmission resources; The duration for which the first device requests to reserve transmission resources is longer than the duration for which the other devices request to reserve transmission resources; The amount of data to be transmitted by the first device is lower than the amount of data to be transmitted by the other devices; The amount of data to be transmitted by the first device is greater than the amount of data to be transmitted by the other devices; The receiving address corresponding to the data to be transmitted of the first device is greater than the receiving address corresponding to the data to be transmitted of the other devices; The receiving address corresponding to the data to be transmitted of the first device is smaller than the receiving address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is greater than the sending address corresponding to the data to be transmitted of the other devices; The sending address corresponding to the data to be transmitted of the first device is smaller than the sending address corresponding to the data to be transmitted of the other devices; The amount of data to be transmitted corresponding to the target AC in the first device is lower than the amount of data to be transmitted corresponding to the target AC in the other devices; The data volume of the to-be-transmitted data corresponding to the target AC in the first device is greater than the data volume of the to-be-transmitted data corresponding to the target AC in the other devices.

62. The communication device according to any one of claims 52 to 61, characterized in that The first PPDU carries a first field, where the first field is used to carry one or more of the following fields: The second field is used to indicate the bandwidth required to transmit the first PPDU; The third field is used to indicate the duration required to transmit the first PPDU.

63. The communication device according to claim 62, wherein The first field is located between the service field of the first PPDU and the PSDU field of the first PPDU, or The first field is located between a long training field of the first RU in the first PPDU and a data field of the first PPDU.

64. The communication device according to any one of claims 52 to 63, characterized in that The first PPDU includes a long training field of the first RU and / or a short training field of the first RU.

65. The communication device according to any one of claims 52 to 64, characterized in that The transmission of the first PPDU satisfies one or more of the following rules: The sender of the first PPDU is a station that is not an access point; If the sender of the first PPDU is an access point AP, the second device is an AP other than the AP.

66. The communication device according to any one of claims 52 to 65, characterized in that The first RU is determined based on a basic service set BSS to which the first device belongs.

67. The communication device according to any one of claims 52 to 66, characterized in that The first RU is a regular RU or a distributed resource unit dRU.

68. The communication device according to any one of claims 52 to 67, characterized in that The transmit power of the plurality of PPDUs is determined based on an expected receive power of the second device.

69. A communication device, characterized in that It includes a transceiver, a memory and a processor, the memory is used to store programs, the processor is used to call the programs in the memory and control the transceiver to receive or send signals, so that the terminal device executes the method as described in any one of claims 1 to 34.

70. A device, characterized in that The device comprises a processor configured to call a program from a memory so as to cause the device to execute the method according to any one of claims 1 to 34.

71. A chip, characterized in that: The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 34.

72. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 34.

73. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 34.

74. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 34.

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