Wireless communication method, apparatus, device and readable storage medium

Abstract

Provided in the present application are a wireless communication method, an apparatus, a device and a readable storage medium. The method comprises: on the basis of first information, a station sending or receiving a physical layer protocol data unit (PPDU), wherein the first information comprises at least one of the following: an enabling indication used for indicating or configuring whether to enable using additional pilots for interference estimation and cancellation for a PPDU transmission; a quantity configuration indication used for indicating or configuring the quantity of the additional pilots for interference estimation and cancellation for the PPDU transmission; a time domain configuration indication used for indicating or configuring time domain resources for the additional pilots for interference estimation and cancellation for the PPDU transmission; and a frequency domain configuration indication used for indicating or configuring frequency domain resources for the additional pilots for interference estimation and cancellation for the PPDU transmission.

Description

Wireless communication methods, apparatus, devices and readable storage media

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411441352.0, filed on October 15, 2024, entitled "Wireless Communication Method, Apparatus, Device and Readable Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communications, and more specifically, to a wireless communication method, apparatus, device, and readable storage medium. Background Technology

[0004] Interference is a problem affecting the demodulation of Physical Layer Protocol Data Units (PPDUs). The main methods for solving interference problems include reducing the modulation and coding scheme (MCS), retransmitting lost packets, and switching channels. However, these methods are not suitable for Ultra High Reliability (UHR) PPDUs. Therefore, introducing additional pilots for interference estimation and cancellation is considered to address the interference problem in UHR PPDUs. Thus, how to design pilots in UHR PPDUs to solve the interference problem is an urgent issue to be addressed. Summary of the Invention

[0005] This application provides a wireless communication method, apparatus, device, and readable storage medium capable of interference estimation and cancellation in a UHR PPDU.

[0006] Firstly, a wireless communication method is provided, comprising:

[0007] The station sends or receives a Physical Layer Protocol Data Unit (PPDU) based on the first information, wherein the first information is used to indicate or configure the data portion of the PPDU;

[0008] The first information includes at least one of the following:

[0009] Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots for interference estimation and cancellation;

[0010] Quantity configuration indicator, used to indicate or configure the number of additional pilots for interference estimation and cancellation used for PPDU transmission;

[0011] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0012] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0013] In some implementations, the additional pilots used for interference estimation and cancellation are zero-power pilots, or the additional pilots used for interference estimation and cancellation are non-zero-power pilots.

[0014] In some implementations, when the additional pilot for interference estimation and cancellation is a non-zero power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 1 or -1.

[0015] In some implementations, the first information is carried by at least one of the following fields:

[0016] The physical layer version identifier field in the U-SIG domain;

[0017] The ignored fields in the U-SIG field;

[0018] The PPDU type and compression mode fields in the U-SIG field;

[0019] The common fields in the UHR-SIG domain;

[0020] User-specific fields in the UHR-SIG domain.

[0021] In some implementations, the first information is carried by at least one of the following fields:

[0022] The physical layer version identifier field in the U-SIG domain;

[0023] The ignored fields in the U-SIG field;

[0024] The PPDU type and compression mode fields in the U-SIG field;

[0025] The public information field in the trigger frame;

[0026] The special user information field in the trigger frame.

[0027] The user information field in the trigger frame.

[0028] Secondly, a wireless communication method is provided, including:

[0029] Based on the first information, the access point sends or receives Physical Layer Protocol Data Units (PPDUs).

[0030] The first information is used to indicate or configure the data portion of the PPDU;

[0031] The first information includes at least one of the following:

[0032] Enable indicator, used to indicate whether to enable the transmission of PPDU using additional pilot modes for interference estimation and cancellation;

[0033] Quantity configuration indicator for configuring the number of additional pilots used for interference estimation and cancellation in PPDU transmission;

[0034] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0035] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0036] In some implementations, the first information is determined by the access point based on the second information, wherein the second information includes at least one of the following:

[0037] The measurement reporting content of the station;

[0038] The service information carried in the PPDU;

[0039] The level of interference experienced by the site;

[0040] The measurement information of the access point;

[0041] The level of interference experienced by the access point.

[0042] In some implementations, the proportion of the additional pilot signals used for interference estimation and cancellation for PPDU transmission that occupy the total frequency domain resources of the PPDU does not exceed a first threshold.

[0043] In some implementations, the additional pilot signals used for interference estimation and cancellation in the PPDU transmission occupy a proportion of the total frequency domain resources of the PPDU that is not less than a second threshold.

[0044] In some implementations, the additional pilots used for interference estimation and cancellation are zero-power pilots, or the additional pilots used for interference estimation and cancellation are non-zero-power pilots.

[0045] In some implementations, when the additional pilot for interference estimation and cancellation is a non-zero power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 1 or -1.

[0046] In some implementations, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the frequency domain, or,

[0047] The multiple additional pilots used for interference estimation and cancellation form N additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes M additional pilots used for interference estimation and cancellation. The M additional pilots used for interference estimation and cancellation are continuous in the frequency domain, where N and M are positive integers greater than 1, or...

[0048] The additional pilot signals used for interference estimation and cancellation are discontinuous in the frequency domain.

[0049] In some implementations, when the plurality of additional pilots for interference estimation and cancellation are discontinuous in the frequency domain, the plurality of additional pilots for interference estimation and cancellation are transmitted at equal intervals in the frequency domain, wherein the interval between the plurality of additional pilots for interference estimation and cancellation is W subcarriers, where W is a positive integer.

[0050] In some implementations, each resource unit (RU) occupied by the PPDU includes at least one additional pilot for interference estimation and cancellation.

[0051] In some implementations, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the time domain, or,

[0052] The plurality of additional pilots for interference estimation and cancellation constitute P additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes Q additional pilots for interference estimation and cancellation, which are continuous in the time domain, where P and Q are positive integers greater than 1, or

[0053] The additional pilot signals used for interference estimation and cancellation are discontinuous in the time domain.

[0054] In some implementations, the plurality of additional pilots for interference estimation and cancellation are discontinuous in the time domain, and the maximum time interval between the discontinuous additional pilots for interference estimation and cancellation is Z orthogonal frequency division multiplexing (OFDM) symbols, where Z is a positive integer.

[0055] In some implementations, the PPDU is an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHR MU PPDU), and the first information is configured or indicated through the U-SIG field and / or the UHR-SIG field in the UHR MU PPDU.

[0056] In some implementations, the first information is carried by at least one of the following fields:

[0057] The physical layer version identifier field in the U-SIG domain;

[0058] The ignored fields in the U-SIG field;

[0059] The PPDU type and compression mode fields in the U-SIG field;

[0060] The common fields in the UHR-SIG domain;

[0061] User-specific fields in the UHR-SIG domain.

[0062] In some implementations, the PPDU is an Ultra-Reliable Physical Layer Protocol Data Unit (UHRTB) based on a trigger frame, and the first information is configured or indicated through the U-SIG field of the UHRTB PPDU and / or the trigger frame corresponding to the UHRTB PPDU. In some implementations, the first information is carried through at least one of the following fields:

[0063] The physical layer version identifier field in the U-SIG domain;

[0064] The ignored fields in the U-SIG field;

[0065] The PPDU type and compression mode fields in the U-SIG field;

[0066] The public information field in the trigger frame;

[0067] The special user information field in the trigger frame.

[0068] The user information field in the trigger frame.

[0069] In some implementations, the first capability information is carried through the ultra-high reliability physical layer capability information domain.

[0070] Thirdly, a wireless communication device is provided, comprising:

[0071] The communication module is used to send or receive Physical Layer Protocol Data Units (PPDUs) based on the first information.

[0072] The first information is used to indicate or configure the data portion of the PPDU;

[0073] The first information includes at least one of the following:

[0074] Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots for interference estimation and cancellation;

[0075] Quantity configuration indicator, used to indicate or configure the number of additional pilots for interference estimation and cancellation used for PPDU transmission;

[0076] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0077] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0078] Fourthly, a wireless communication device is provided, comprising:

[0079] The communication module is used to send or receive Physical Layer Protocol Data Units (PPDUs) based on the first information.

[0080] The first information is used to indicate or configure the data portion of the PPDU;

[0081] The first information includes at least one of the following:

[0082] Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots for interference estimation and cancellation;

[0083] Quantity configuration indicator, used to indicate or configure the number of additional pilots for interference estimation and cancellation used for PPDU transmission;

[0084] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0085] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0086] Fifthly, a site is provided, including a processor and a memory. The memory is used to store computer programs, and the processor is used to invoke and run the computer programs stored in the memory, performing the methods described in the first aspect or its various implementations.

[0087] Sixthly, an access point is provided, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory, performing the methods in the second aspect or its implementations described above.

[0088] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is installed to perform the methods of any one of the first to second aspects or their respective implementations.

[0089] Eighthly, a readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0090] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0091] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0092] Through the above technical solution, the site or access point can transmit or receive PPDU according to the first information, wherein the first information includes at least one of the following: an enable indication, a quantity configuration indication, a time domain configuration indication, and a frequency domain configuration indication for additional pilots used for interference estimation and cancellation, thereby enabling the purpose of interference cancellation and elimination of PPDU through additional pilots used for interference estimation and cancellation. Attached Figure Description

[0093] Figure 1 is a schematic diagram of a communication system applicable to an embodiment of this application.

[0094] Figure 2 is a schematic diagram of a wireless communication method provided in an embodiment of this application.

[0095] Figure 3 is a schematic diagram of the distribution of additional pilots for interference estimation and cancellation provided in an embodiment of this application.

[0096] Figure 4 is a schematic diagram of another additional pilot distribution for interference estimation and cancellation provided in an embodiment of this application.

[0097] Figure 5 is a schematic diagram of another additional pilot distribution for interference estimation and cancellation provided in an embodiment of this application.

[0098] Figure 6 is a schematic diagram of another additional pilot distribution for interference estimation and cancellation provided in an embodiment of this application.

[0099] Figure 7 is a schematic interactive diagram of a wireless communication method provided in an embodiment of this application.

[0100] Figure 8 is a schematic diagram of a wireless communication device provided in an embodiment of this application.

[0101] Figure 9 is a schematic diagram of another wireless communication device provided in an embodiment of this application.

[0102] Figure 10 is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0103] Figure 11 is a schematic block diagram of a chip provided according to an embodiment of this application.

[0104] Figure 12 is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0105] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0106] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Furthermore, the terms "first" and "second," etc., used herein are used only to distinguish different objects and not to describe a particular order.

[0107] It should be noted that, in the embodiments of this application, "at least one item" refers to one item or more items, "more items" refers to two items or more, and "at least two items" refers to two items or more. "At least one of the following items" or similar expressions can refer to any combination of these items. For example, at least one item of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0108] It should be noted that in the embodiments of this application, "and / or" indicates that the connected objects can have three relationships. For example, "A and / or B" can represent three scenarios: only A exists, only B exists, and both A and B exist simultaneously. The character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0109] It should be understood that the "instruction" mentioned in the embodiments of this application can be a direct instruction or an indirect instruction. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; or it can mean that A indirectly instructs B, for example, A instructing C, B can be obtained through C, for example, B and C have an association relationship.

[0110] The technical solutions provided in this application can be applied to wireless local area network (WLAN) systems, such as WiFi protocols. These WiFi protocols may include, but are not limited to, the 802.11 series protocols, such as 802.11b, 802.11a, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn, or next-generation protocols. Alternatively, they can be applied to wireless personal area network systems based on Ultra Wide Band (UWB), sensing systems, etc.

[0111] Figure 1 shows a schematic structural diagram of a communication system 100 applicable to an embodiment of this application. The communication system 100 may include an access point (AP) 110 and a station (STA) 120. The station 120 can access the network through the access point 110.

[0112] Access points can support communication or sensing based on WiFi protocols, such as 802.11b, 802.11a, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn, or next-generation protocols.

[0113] The site can support communication or sensing based on WiFi protocols, such as 802.11b, 802.11a, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11be, 802.11bn, or next-generation protocols.

[0114] The communication in the communication system 100 can be communication between access points and stations, or communication between stations, or communication between access points.

[0115] An access point acts as a bridge connecting wired and wireless networks. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet.

[0116] A site, also known as a non-AP STA, and an access point, also known as an AP STA, are, in a sense, also a type of site.

[0117] In some scenarios, access points and sites can be devices used in vehicle networking, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0118] In some scenarios, the access point can be a terminal device (such as a mobile phone) with a WiFi chip or a network device (such as a router).

[0119] In the embodiments of this application, the site may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, vehicle communication device, wireless device in remote medical, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city or smart home, wireless device, wireless communication chip, etc. that support WLAN or WiFi technology.

[0120] It should be understood that Figure 1 only illustrates one access point and two sites. Optionally, the communication system 100 may include multiple access points or other numbers of sites, which is not limited in this application embodiment.

[0121] Optionally, the communication system 100 may also include other devices, such as network controllers, gateways, and other network entities, which are not limited in this application.

[0122] To facilitate understanding of the embodiments of this application, the related technologies of this application will be described.

[0123] Improving reliability and more efficient spectrum utilization are key objectives of Ultra High Reliability (UHR). Interference is a significant problem in WLANs, and it exists in all WLAN frequency bands (e.g., 2.4GHz / 5GHz / 6GHz), both in uplink and downlink.

[0124] Interference is one of the main reasons for the limited reliability of WLANs. Interference signals can occupy any bandwidth (narrowband or wideband) and can come from multiple sources, such as:

[0125] Any valid WLAN signal;

[0126] 3GPP transmission in unlicensed frequency bands;

[0127] 2MHz narrowband assisted UWB;

[0128] Bluetooth (2.4GHz band).

[0129] Interference is not only a problem of demodulation for each Physical Layer Protocol Data Unit (PPDU), but also a problem in link adaptation and related physical layer measurements. Applying Interference Mitigation (IM) at the receiver can make physical layer measurements (such as reported signal-to-noise ratio) more reliable. Receiver-side IM can be used to enhance Spatial Reuse (SR), for example, the receiver can mitigate interference generated by the SR transmitter. Applying IM at the receiver can enhance SR performance. Using IM pilots can ensure high reliability of ongoing transmissions at the receiver, especially in terms of interference immunity, which is the goal of SR. Overlapping Basic Service Set (OBSS) STAs can use IM pilots to ensure high reliability at their target receiver.

[0130] In related technologies, methods to address interference may include:

[0131] Lowering the modulation and coding scheme (MCS) makes transmission more robust;

[0132] Retransmit lost data packets;

[0133] Switch channels (e.g., switch to a channel with lower load).

[0134] However, none of the above solutions are applicable to UHR PPDU. To address the interference problem, it is necessary to introduce additional pilots in the UHR PPDU for interference estimation and cancellation. Therefore, how to design pilots in the UHR PPDU to solve the interference problem is an urgent issue to be addressed.

[0135] The technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, all of which fall within the protection scope of the embodiments of this application.

[0136] Figure 2 is a schematic diagram of a wireless communication method 200 according to an embodiment of this application. As shown in Figure 2, the method 200 includes at least the following:

[0137] S210, the station sends or receives Physical Layer Protocol Data Unit (PPDU) based on the first information.

[0138] Correspondingly, the access point can also receive or send PPDU based on the first information.

[0139] That is, the access point and the site have the same understanding of the first information used to transmit the PPDU.

[0140] The station in this embodiment can be station 120 in the communication system shown in Figure 1, or a non-AP STA. For example, the station can be, but is not limited to, various types of station 120. The access point in this embodiment can be access point 110 in the communication system shown in Figure 1, or an AP STA. For example, the access point can be, but is not limited to, various types of access point 110.

[0141] In the embodiments of this application, the PPDU can be an uplink PPDU or a downlink PPDU, and this application does not limit this. That is, the station can be a PPDU transmitter or a PPDU receiver, and correspondingly, the access point can be a PPDU receiver or a PPDU transmitter.

[0142] In the embodiments of this application, the PPDU can be a UHR PPDU, such as a UHR Trigger Based (TB) PPDU, or a UHR Multiple User (MU) PPDU, etc.

[0143] In some embodiments, the first information is used to indicate or configure the data portion of the PPDU.

[0144] For example, the first information may include an indication or configuration for the data portion of the PPDU, such as an indication or configuration for interference estimation and elimination of the data portion of the PPDU.

[0145] Specifically, for example, the first information may include additional pilot-related indications or configurations for interference estimation and cancellation, wherein the additional pilots for interference estimation and cancellation can be used for interference estimation and cancellation of the data portion of the PPDU.

[0146] In the embodiments of this application, the additional pilots used for interference estimation and cancellation are also called IM pilots, target pilots, or other names, which are not limited in this application. This first information is also called IM pilot configuration, or additional pilot configuration for interference estimation and cancellation.

[0147] In some embodiments, when the site is the transmitter of the PPDU, the site can set additional pilots for interference estimation and cancellation in the PPDU according to the first information, such as setting the number of additional pilots for interference estimation and cancellation in the PPDU, the time domain position, the frequency domain position, etc. Correspondingly, the access point can obtain the additional pilots for interference estimation and cancellation from the PPDU according to the first information, and perform interference estimation and cancellation on the data portion of the PPDU based on the pilots.

[0148] In some embodiments, when the access point is the transmitter of the PPDU, the access point can set additional pilots for interference estimation and cancellation in the PPDU according to the first information, such as setting the number of additional pilots for interference estimation and cancellation in the PPDU, the time domain position, the frequency domain position, etc. Correspondingly, the station can obtain the additional pilots for interference estimation and cancellation from the PPDU according to the first information, and perform interference estimation and cancellation on the data portion of the PPDU based on the pilots.

[0149] For ease of distinction and explanation, the site to which the first information is directed is referred to as the first site, and the PPDU to which the first information is directed is referred to as the first PPDU. The first site can send the first PPDU to the access point or receive the first PPDU from the access point according to the first information. Correspondingly, the access point can receive the first PPDU from the first site or send the first PPDU to the first site according to the first information.

[0150] Optionally, other stations (e.g., the second station) may also send a second PPDU to the access point based on the third information, or receive a second PPDU from the access point. Correspondingly, the access point may receive a second PPDU from the second station based on the third information, or send a second PPDU to the second station. The third information corresponds to the second station. The third information is used to configure an indication or configuration for the data portion of the second PPDU. For example, the third information may include an indication or configuration for the data portion of the second PPDU, such as an indication or configuration for interference estimation and cancellation of the data portion of the second PPDU. Specifically, for example, the third information may include additional pilot-related indications or configurations for interference estimation and cancellation, wherein the additional pilots for interference estimation and cancellation can be used for interference estimation and cancellation of the data portion of the second PPDU.

[0151] In some embodiments, additional pilot configurations for interference estimation and cancellation can be site-granular, meaning that different sites can use corresponding pilot configurations. For example, the pilot configuration for a site can be determined based on information such as the level of interference experienced by the site and the priority of the services to be transmitted between the site and the access point (the specific determination method is described in detail below), thereby meeting the transmission requirements of PPDUs between different sites and access points.

[0152] In other embodiments, stations transmitting data with the access point can use the same pilot configuration. For example, the first information corresponding to the first station and the third information corresponding to the second station can be the same. Optionally, the same pilot configuration can be a default pilot configuration. In this case, the access point does not need to indicate the pilot configuration to the station, and the station can directly use the default pilot configuration to send or receive PPDUs.

[0153] In some embodiments, the additional pilots used for interference estimation and cancellation may be zero-energy / zero-power pilots, or they may be non-zero-power pilots, which are not limited in this application.

[0154] In some embodiments, when the additional pilot for interference estimation and cancellation is a zero-power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 0.

[0155] Optionally, when the additional pilot for interference estimation and cancellation is a non-zero power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 1 or -1.

[0156] In some embodiments of this application, the first information includes, but is not limited to, at least one of the following:

[0157] Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots for interference estimation and cancellation;

[0158] Quantity configuration indicator, used to indicate or configure the number of additional pilots for interference estimation and cancellation used for PPDU transmission;

[0159] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0160] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0161] It should be noted that the above information may not distinguish between uplink PPDU and downlink PPDU, that is, the same indication or configuration may be used for uplink PPDU and downlink PPDU. Alternatively, it may distinguish between uplink PPDU and downlink PPDU, that is, independent indication or configuration may be used for uplink PPDU and downlink PPDU.

[0162] In some embodiments, the first information may be an access point indication or configuration. In this case, the method 200 may further include: the access point sending the first information to the site, or it may be predefined, such as that specified by the protocol, or it may be default, or some of the information may be an access point indication or configuration, and other information may be predefined.

[0163] In some specific embodiments, the first information may only include an enable indication. Optionally, in this case, the number of additional pilots, time-domain resources, and frequency-domain resources for interference estimation and cancellation used for PPDU transmission can adopt a default configuration. For example, by default, X additional pilots for interference estimation and cancellation used for PPDU transmission are used, where X is a positive integer. For example, by default, the additional pilots for interference estimation and cancellation used for PPDU transmission are transmitted at equal intervals in the time domain, specifically, for example, the time interval between adjacent pilots is Z orthogonal frequency-division multiplexing (OFDM) symbols, where Z is a positive integer. For example, by default, the additional pilots for interference estimation and cancellation used for PPDU transmission are transmitted at equal intervals in the frequency domain, specifically, for example, the frequency domain interval between adjacent pilots is W subcarriers, where W is a positive integer.

[0164] In some specific embodiments, the first information may only include a quantity configuration indication. Optionally, in this case, the transmission of PPDUs using additional pilots for interference estimation and cancellation is enabled by default, and the time-domain and frequency-domain resources of the additional pilots for interference estimation and cancellation used for PPDU transmission can adopt the default configuration. For example, by default, the additional pilots for interference estimation and cancellation used for PPDU transmission are transmitted at equal intervals in the time domain, specifically, for example, the time interval between adjacent pilots is Z OFDM symbols, where Z is a positive integer. For example, by default, the additional pilots for interference estimation and cancellation used for PPDU transmission are transmitted at equal intervals in the frequency domain, specifically, for example, the frequency domain interval between adjacent pilots is W subcarriers, where W is a positive integer.

[0165] In some other embodiments, the first information may include a time-domain configuration indication and a frequency-domain configuration indication. Optionally, in this case, the transmission of PPDUs is enabled by default using additional pilots for interference estimation and cancellation, and the number of additional pilots for interference estimation and cancellation used for PPDU transmission can be configured by default. For example, by default, X additional pilots for interference estimation and cancellation used for PPDU transmission are used, where X is a positive integer.

[0166] In some embodiments, the first information may be determined by the access point based on the second information. The second information may include, for example, at least one of the following:

[0167] The measurement and reporting content of the site;

[0168] The service information carried in the PPDU;

[0169] The level of interference experienced by the site;

[0170] Measurement information of the access point;

[0171] The level of interference experienced by the access point.

[0172] Optionally, the measurement reporting content of the site may only include existing measurement reporting content, such as the content reported in the beamforming report information. For example, this measurement reporting content may include, but is not limited to, Received Signal Strength Indication (RSSI), Signal to Interference plus Noise Ratio (SINR), etc.; or it may include interference-related measurement reporting content, such as interference level, interference measurement quantity, etc. This measurement reporting content can reflect the level of interference experienced by the site.

[0173] Optionally, the service information carried in the PPDU may include, but is not limited to, service priority information, service importance information, etc.

[0174] Optionally, the interference level experienced by the site can refer to the interference level experienced by the link between the site and the access point. This interference level can be reported by the site to the access point (e.g., carried in the measurement reporting content), or it can be calculated by the access point based on the measurement reporting content of the site (e.g., SINR information).

[0175] Optionally, the access point's measurement information can be obtained by measuring the uplink signals sent by the site. For example, the measurement information may include, but is not limited to, RSSI, SINR, etc. The access point's measurement information can reflect the level of interference experienced by the access point.

[0176] Optionally, the level of interference experienced by the access point can refer to the level estimated by the access point based on its measurement information.

[0177] Therefore, in this embodiment, the access point can dynamically indicate or configure whether to enable the use of additional pilots for interference estimation and cancellation for PPDU transmission, the number of additional pilots for interference estimation and cancellation for PPDU transmission, the time domain resources of additional pilots for interference estimation and cancellation for PPDU transmission, and the frequency domain resources of additional pilots for interference estimation and cancellation for PPDU transmission, based on the interference level experienced by the access point, the interference level experienced by the site, and the service information carried in the PPDU. This is beneficial for meeting the transmission requirements of PPDU in different scenarios and for taking into account pilot overhead.

[0178] In some embodiments, the enable indication may include an uplink enable indication and / or a downlink enable indication, wherein the uplink enable indication is used to indicate or configure whether to enable the transmission or reception of uplink PPDUs using additional pilots for interference estimation and cancellation, and the downlink enable indication is used to indicate or configure whether to enable the transmission or reception of downlink PPDUs using additional pilots for interference estimation and cancellation. That is, it is possible to indicate or configure whether to enable the transmission or reception of uplink PPDUs using additional pilots for interference estimation and cancellation and whether to enable the transmission or reception of downlink PPDUs using additional pilots for interference estimation and cancellation separately.

[0179] In this case, the up-run enable indicator and the down-run enable indicator can each be represented by 1 bit. For example, a value of 1 indicates that the use of additional pilots for interference estimation and cancellation is enabled for the transmission or reception of PPDU in the corresponding direction, while a value of 0 indicates that the use of additional pilots for interference estimation and cancellation is disabled for the transmission or reception of PPDU in the corresponding direction.

[0180] In other embodiments, an enable indicator may be used to indicate or configure whether to enable the transmission or reception of uplink and downlink PPDUs using additional pilots for interference estimation and cancellation. That is, the transmission or reception of uplink and downlink PPDUs using additional pilots for interference estimation and cancellation may be enabled or disabled simultaneously.

[0181] In this case, the enable indication can be represented by 1 bit. For example, a value of 1 indicates that the use of additional pilots for interference estimation and cancellation is enabled for the transmission or reception of uplink and downlink PPDUs, while a value of 0 indicates that the use of additional pilots for interference estimation and cancellation is not enabled for the transmission or reception of uplink and downlink PPDUs.

[0182] In some other embodiments, the use of additional pilots for interference estimation and cancellation is enabled or disabled by default for the transmission or reception of PPDUs (which may or may not distinguish between uplink and downlink PPDUs). In this case, the access point may not send an enable instruction to the terminal.

[0183] In some embodiments, the access point can determine, based on second information, whether to enable the transmission or reception of PPDUs (which may or may not distinguish between uplink and downlink PPDUs) using additional pilots for interference estimation and cancellation. In one specific embodiment, the access point can determine, based on the interference level experienced by the site, whether to enable the transmission or reception of PPDUs (which may or may not distinguish between uplink and downlink PPDUs) using additional pilots for interference estimation and cancellation. In another specific embodiment, the access point can determine, based on the interference level experienced by the access point, whether to enable the transmission or reception of PPDUs (which may or may not distinguish between uplink and downlink PPDUs) using additional pilots for interference estimation and cancellation.

[0184] In some other specific embodiments, the access point may determine whether to enable the use of additional pilots for interference estimation and cancellation to transmit or receive PPDUs (which may or may not distinguish between uplink and downlink PPDUs) based on the interference level experienced by the site and the interference level experienced by the access point.

[0185] In some other specific embodiments, the access point may determine whether to enable the use of additional pilots for interference estimation and cancellation to transmit or receive PPDUs (which may or may not distinguish between uplink and downlink PPDUs) based on the priority of the services carried in the PPDU.

[0186] For example, when the interference level is high, additional pilots for interference estimation and cancellation can be enabled for PPDU transmission or reception, while when the interference level is low, the additional pilots for interference estimation and cancellation can be disabled for PPDU transmission or reception. In this way, when the interference level is high, the PPDU receiver can perform interference estimation and cancellation based on the additional pilots for interference estimation and cancellation, thus ensuring the demodulation performance of the PPDU.

[0187] For example, when the service carried in the PPDU has a high priority, additional pilots for interference estimation and cancellation can be enabled for PPDU transmission or reception. When the service carried in the PPDU has a low priority, the additional pilots for interference estimation and cancellation cannot be enabled for PPDU transmission or reception. In this way, when the service to be transmitted has a high priority, the PPDU receiver can perform interference estimation and cancellation based on the additional pilots for interference estimation and cancellation, thus ensuring the transmission performance of high-priority services.

[0188] In some embodiments, the quantity configuration indication may include an uplink quantity configuration indication and / or a downlink quantity configuration indication, wherein the uplink quantity configuration indication is used to indicate or configure the number of additional pilots for interference estimation and cancellation for uplink PPDU transmission, and the downlink quantity configuration indication is used to indicate or configure the number of additional pilots for interference estimation and cancellation for downlink PPDU transmission.

[0189] That is, the number of additional pilots for interference estimation and cancellation used for uplink PPDU transmission and the number of additional pilots for interference estimation and cancellation used for downlink PPDU transmission can be indicated or configured separately.

[0190] In other embodiments, a quantity configuration indicator may also be used to indicate or configure the number of additional pilots for interference estimation and cancellation used for uplink and downlink PPDU transmissions. That is, the number of additional pilots for interference estimation and cancellation used for uplink and downlink PPDU transmissions is the same.

[0191] In some embodiments, the number of additional pilots used for interference estimation and cancellation in PPDU transmission (which may or may not distinguish between uplink and downlink PPDU) can be a fixed number. In this case, the access point may not send a quantity configuration instruction to the site, and the site may use the default number of additional pilots used for interference estimation and cancellation to transmit or receive PPDUs.

[0192] In some embodiments, the number of additional pilots used for interference estimation and cancellation for PPDU transmission (which may or may not distinguish between uplink and downlink PPDU) can be variable. For example, the number of additional pilots used for interference estimation and cancellation is configurable. In this case, the access point can send a quantity configuration indication to the site to dynamically indicate or configure the number of additional pilots used for interference estimation and cancellation.

[0193] In some embodiments, the access point may determine the number of additional pilots for interference estimation and cancellation for PPDU transmission based on the second information.

[0194] In one specific embodiment, the access point can determine the number of additional pilots for interference estimation and cancellation used for PPDU transmission based on the level of interference experienced by the site.

[0195] In another specific embodiment, the access point may determine the number of additional pilots for interference estimation and cancellation for PPDU transmission based on the level of interference experienced by the access point.

[0196] In some other specific embodiments, the access point may determine the number of additional pilots for interference estimation and cancellation for PPDU transmission based on the interference level experienced by the site and the interference level experienced by the access point.

[0197] In some other specific embodiments, the access point may determine the number of additional pilots for interference estimation and cancellation used for PPDU transmission based on the priority of the services carried in the PPDU.

[0198] For example, when the interference level is high, a first number of additional pilots for interference estimation and cancellation is determined; when the interference level is low, a second number of additional pilots for interference estimation and cancellation is determined, where the first number is greater than the second number. In this way, when the interference level is high, the PPDU receiver can perform effective interference estimation and cancellation based on a larger number of pilots, ensuring the demodulation performance of the PPDU; when the interference level is low, the PPDU receiver can achieve effective interference estimation and cancellation based on a smaller number of pilots, reducing pilot overhead and improving data transmission efficiency.

[0199] For example, when the service priority carried in the PPDU is high, a third number of additional pilots are designated for interference estimation and cancellation; when the service priority carried in the PPDU is low, a fourth number of additional pilots are designated, where the third number is greater than the fourth number. In this way, for high-priority services, the PPDU receiver can perform effective interference estimation and cancellation based on a larger number of pilots, ensuring the demodulation performance of high-priority services. For low-priority services, the PPDU can achieve effective interference estimation and cancellation based on a smaller number of pilots, reducing pilot overhead and improving data transmission efficiency.

[0200] In some embodiments, the proportion of the total frequency domain resources of the PPDU occupied by the additional pilots used for interference estimation and cancellation for PPDU transmission does not exceed a first threshold.

[0201] That is, in the embodiments of this application, the number of additional pilots used for interference estimation and cancellation occupying the total frequency domain resources of the PPDU can be constrained to not exceed a certain proportion, so as to ensure the transmission efficiency of the data part of the PPDU.

[0202] Optionally, the first threshold can be indicated or configured by the access point, or it can be predefined, such as as specified by the protocol, or it can be the default.

[0203] Optionally, the first threshold can be 20%, 25%, etc., but this application does not limit it.

[0204] In some embodiments, the proportion of the additional pilot signals used for interference estimation and cancellation for PPDU transmission that occupy the total frequency domain resources of the PPDU is not less than a second threshold.

[0205] That is, in the embodiments of this application, the number of additional pilots used for interference estimation and cancellation occupying the total frequency domain resources of the PPDU can be constrained to be no less than a certain proportion. This can ensure that the receiver of the PPDU can perform effective interference estimation and cancellation based on a sufficient number of pilots, thus ensuring the demodulation performance of the PPDU.

[0206] Optionally, the second threshold can be indicated or configured by the access point, or it can be predefined, such as as specified in the protocol.

[0207] Optionally, the second threshold can be 5%, 8%, etc., but this application does not limit it.

[0208] In some embodiments, the time-domain configuration indication may include an uplink time-domain configuration indication and / or a downlink time-domain configuration indication, wherein the uplink time-domain configuration indication is used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in uplink PPDU transmission, and the downlink time-domain configuration indication is used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in downlink PPDU transmission.

[0209] That is, additional time-domain resources for pilots used for interference estimation and cancellation for uplink PPDU transmission and additional time-domain resources for pilots used for interference estimation and cancellation for downlink PPDU transmission can be indicated or configured separately.

[0210] In other embodiments, a time-domain configuration indication may also be used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in uplink and downlink PPDU transmissions. That is, the additional time-domain resources for pilots used for interference estimation and cancellation in uplink and downlink PPDU transmissions are the same.

[0211] In some embodiments, the time-domain configuration indication can be used to indicate or configure the transmission mode of additional pilots for interference estimation and cancellation in the time domain, such as continuous or discontinuous transmission, the number of pilots transmitted continuously in the case of continuous transmission, and the time interval between discontinuous pilots in the case of discontinuous transmission.

[0212] In some embodiments, the additional pilots used for interference estimation and cancellation in PPDU transmission are continuous in the time domain, or they may be discontinuous, or they may be packet-continuous, i.e., the pilots within a packet are continuous, but the pilot packets are discontinuous. Optionally, the time interval between discontinuous pilots or pilot packets may be fixed, or variable, for example, the time interval may be configurable.

[0213] In one specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation that are continuous in the time domain. For example, as shown in Figures 3 and 4(a)-(c), the additional pilots for interference estimation and cancellation are continuous in the time domain.

[0214] In another specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include multiple additional pilots for interference estimation and cancellation, which together form P additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes Q additional pilots for interference estimation and cancellation, which are continuous in the time domain, where P and Q are positive integers greater than 1. For example, as shown in Figures 4(a) and (b), the additional pilots for interference estimation and cancellation can be divided into multiple pilot groups, where the pilots within each pilot group are continuous in the time domain, but the pilot groups are discontinuous.

[0215] In yet another specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation that are discontinuous in the time domain. As shown in Figures 5 and 6(a)-(c), the additional pilots for interference estimation and cancellation are discontinuous in the time domain.

[0216] In some embodiments, the time-domain configuration indicator can also be used to indicate or configure the time interval or maximum time interval between discontinuous pilots, or the time interval or maximum time interval between pilot groups. For example, the time interval or maximum time interval between pilots or between pilot groups is Z OFDM symbols, where Z is a positive integer. Indicating or configuring the maximum time interval between pilots or pilot groups helps to ensure effective interference estimation and cancellation for randomly occurring interference.

[0217] Optionally, Z = 1, or it can be any other value, which is not limited in this application.

[0218] In some embodiments, the access point may determine, based on the second information, an additional time interval between pilot or pilot packets for interference estimation and cancellation for PPDU transmission.

[0219] In one specific embodiment, the access point can determine the additional time interval between pilot or pilot packets used for interference estimation and cancellation for PPDU transmission based on the level of interference experienced by the site.

[0220] In another specific embodiment, the access point may determine additional time intervals between pilot or pilot packets for interference estimation and cancellation for PPDU transmission based on the level of interference experienced by the access point.

[0221] In some other embodiments, the access point may determine the additional time interval between pilot or pilot packets used for interference estimation and cancellation for PPDU transmission based on the interference level experienced by the site and the interference level experienced by the access point.

[0222] In some other specific embodiments, the access point may determine additional time intervals between pilot or pilot packets for interference estimation and cancellation for PPDU transmission based on the priority of the services carried in the PPDU.

[0223] For example, when the interference level is high, an additional interval of Z1 OFDM symbols is determined between pilots used for interference estimation and cancellation; when the interference level is low, an additional interval of Z2 OFDM symbols is determined between pilots used for interference estimation and cancellation, where Z1 is less than Z2. That is, when the interference level is high, the time interval between pilots is smaller, meaning the pilot distribution is denser. This ensures that the PPDU receiver performs effective interference estimation and cancellation based on dense pilots, thus guaranteeing the demodulation performance of the PPDU. When the interference level is low, the time interval between pilots is larger, meaning the pilot distribution is sparser. The PPDU receiver can achieve effective interference estimation and cancellation based on sparse pilots, reducing pilot overhead and improving data transmission efficiency.

[0224] For example, when the service priority carried in the PPDU is high, an additional interval of Z3 OFDM symbols is determined between pilots used for interference estimation and cancellation. When the interference level is low, an additional interval of Z4 OFDM symbols is determined between pilots used for interference estimation and cancellation, where Z3 is less than Z4. That is, for high-priority services, the time interval between pilots is configured to be smaller, i.e., the pilot distribution is denser, which is beneficial for the PPDU receiver to perform effective interference estimation and cancellation based on dense pilots, ensuring the transmission performance of high-priority services. For low-priority services, the time interval between pilots is configured to be larger, i.e., the pilot distribution is sparser, which can reduce pilot overhead and improve data transmission efficiency.

[0225] In some embodiments, the frequency domain configuration indication may include an uplink frequency domain configuration indication and / or a downlink frequency domain configuration indication, wherein the uplink frequency domain configuration indication is used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in uplink PPDU transmission, and the downlink frequency domain configuration indication is used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in downlink PPDU transmission.

[0226] That is, additional frequency domain resources for pilots used for interference estimation and cancellation for uplink PPDU transmission and additional frequency domain resources for pilots used for interference estimation and cancellation for downlink PPDU transmission can be separately indicated or configured.

[0227] In other embodiments, a frequency domain configuration indicator may also be used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in uplink and downlink PPDU transmissions. That is, the additional frequency domain resources for pilots used for interference estimation and cancellation in uplink and downlink PPDU transmissions are the same.

[0228] In some embodiments, the frequency domain configuration indication can be used to indicate or configure the transmission mode of additional pilots for interference estimation and cancellation in the frequency domain, such as continuous or discontinuous transmission, the number of pilots transmitted continuously in the case of continuous transmission, and the frequency domain spacing between discontinuous pilots in the case of discontinuous transmission.

[0229] In some embodiments, the additional pilots used for interference estimation and cancellation in PPDU transmission are continuous in the frequency domain, or they may be discontinuous, or they may be grouped continuously, i.e., the pilots within a group are continuous, while the pilot groups are discontinuous. Optionally, the frequency domain spacing between discontinuous pilots or pilot groups may be fixed, or variable, for example, the frequency domain spacing may be configurable.

[0230] In one specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation that are continuous in the frequency domain. For example, as shown in Figures 3 and 5(a)-(c), the additional pilots for interference estimation and cancellation are continuous in the frequency domain.

[0231] In another specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include multiple additional pilots for interference estimation and cancellation, which form N additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes M IM pilots, and the M additional pilots for interference estimation and cancellation are continuous in the frequency domain, where N and M are positive integers greater than 1. For example, as shown in Figures 3 and 5(a) and (b), the additional pilots for interference estimation and cancellation are divided into multiple pilot groups, where the pilots within a pilot group are continuous in the frequency domain, but the pilot groups are discontinuous.

[0232] In yet another specific embodiment, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation that are discontinuous in the frequency domain, as shown in (a)-(c) of FIG6.

[0233] In some embodiments, when the plurality of additional pilots for interference estimation and cancellation are discontinuous in the frequency domain, the plurality of additional pilots for interference estimation and cancellation are transmitted at equal intervals in the frequency domain, wherein the interval between the plurality of additional pilots for interference estimation and cancellation is W subcarriers, where W is a positive integer.

[0234] Optionally, W = 1, or it can be any other value, which is not limited in this application.

[0235] In some embodiments, the access point may determine, based on the second information, the additional frequency domain spacing between pilots used for interference estimation and cancellation for PPDU transmission, such as the number of spaced subcarriers.

[0236] In one specific embodiment, the access point can determine the additional frequency domain spacing between pilots used for interference estimation and cancellation for PPDU transmission based on the level of interference experienced by the site.

[0237] In another specific embodiment, the access point may determine the additional frequency domain spacing between pilots for interference estimation and cancellation for PPDU transmission based on the level of interference experienced by the access point.

[0238] In some other embodiments, the access point may determine the additional frequency domain spacing between pilots used for interference estimation and cancellation for PPDU transmission based on the interference level experienced by the site and the interference level experienced by the access point.

[0239] In some other specific embodiments, the access point may determine the additional frequency domain spacing between pilots used for interference estimation and cancellation for PPDU transmission based on the priority of the services carried in the PPDU.

[0240] For example, when the interference level is high, an additional pilot spacing of W1 subcarriers is determined for interference estimation and cancellation; when the interference level is low, an additional pilot spacing of W2 subcarriers is determined, where W1 is less than W2. That is, when the interference level is high, the frequency domain spacing between the pilots is smaller, meaning the pilot distribution is denser. This ensures that the PPDU receiver performs effective interference estimation and cancellation based on dense pilots, guaranteeing the demodulation performance of the PPDU. When the interference level is low, the frequency domain spacing between the pilots is larger, meaning the pilot distribution is sparser. The PPDU receiver can achieve effective interference estimation and cancellation based on sparse pilots, reducing pilot overhead and improving data transmission efficiency.

[0241] For example, when the service priority carried in the PPDU is high, an additional interval of W3 OFDM symbols is determined between pilots used for interference estimation and cancellation. When the interference level is low, an additional interval of W4 OFDM symbols is determined between pilots used for interference estimation and cancellation, where W3 is less than W4. That is, for high-priority services, the time interval between pilots is configured to be smaller, i.e., the pilot distribution is denser, which is beneficial for the PPDU receiver to perform effective interference estimation and cancellation based on dense pilots, ensuring the transmission performance of high-priority services. For low-priority services, the time interval between pilots is configured to be larger, i.e., the pilot distribution is sparser, which can reduce pilot overhead and improve data transmission efficiency.

[0242] In some embodiments, each RU occupied by the PPDU includes at least one additional pilot for interference estimation and cancellation. That is, each RU may include at least one IM pilot, which helps to ensure interference estimation and cancellation of the PPDU transmitted within each RU.

[0243] In some embodiments of this application, the PPDU may be a UHR MU PPDU. The first information can be configured or indicated through the Universal Signal field (U-SIG) and / or the Ultra High Reliability Signal field (UHR-SIG) in the UHR MU PPDU. It should be understood that the first information can be configured or indicated through existing fields in the U-SIG field (e.g., using reserved bits in existing fields), or a new field can be added to the U-SIG field to configure or indicate the first information. This application does not limit this approach.

[0244] In some embodiments, the first information is carried through at least one of the following fields:

[0245] The Physical Layer Version Identifier (PHY Version Identifier) ​​field in the U-SIG domain;

[0246] The Disregard field in the U-SIG field;

[0247] The PPDU Type and Compression Mode fields in the U-SIG field;

[0248] The common field in the UHR-SIG domain is carried, for example, by at least one of the Spatial Reuse field, Disregard field, and RU allocation field in the common field;

[0249] The user-specific field in the UHR-SIG domain is carried, for example, through the user field within the user-specific field.

[0250] For example, the enable indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR MU PPDU, or by the User field in the UHR-SIG field.

[0251] For example, the quantity configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR MU PPDU, or by the User field in the UHR-SIG field.

[0252] For example, the time-domain configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR MU PPDU, or by the User field in the UHR-SIG field.

[0253] For example, the frequency domain configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR MU PPDU, or by the User field in the UHR-SIG field.

[0254] In other embodiments of this application, the PPDU is a UHR TB PPDU. The first information is configured or indicated through the general signal U-SIG field in the UHR TB PPDU and / or the trigger frame corresponding to the UHR TB PPDU. The trigger frame is used to trigger the transmission of the UHR TB PPDU. It should be understood that the first information can be configured or indicated through existing fields in the U-SIG field (e.g., using reserved bits in existing fields), or a new field can be added to the U-SIG field to configure or indicate the first information. This application does not limit this.

[0255] In some embodiments, the first information is carried through at least one of the following fields:

[0256] The Physical Layer Version Identifier (PHY Version Identifier) ​​field in the U-SIG domain;

[0257] The Disregard field in the U-SIG field;

[0258] The PPDU Type and Compression Mode fields in the U-SIG field;

[0259] The Common Info field in the trigger frame;

[0260] The special user information field in the trigger frame;

[0261] The user information field in the trigger frame.

[0262] For example, the enable indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR TB PPDU, or by the Common Info field or Special User Info field in the trigger frame.

[0263] For example, the quantity configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR TB PPDU, or by the Common Info field or Special User Info field in the trigger frame.

[0264] For example, the time-domain configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR TB PPDU, or by the Common Info field or Special User Info field in the trigger frame.

[0265] For example, the frequency domain configuration indication can be carried by the Disregard field, PHY Version Identifier field, or PPDU Type And Compression Mode field in the U-SIG field of the UHR TB PPDU, or by the Common Info field or Special User Info field in the trigger frame.

[0266] In some embodiments of this application, the method 200 further includes:

[0267] The station reports first capability information to the access point, the first capability information being used to indicate that the station supports the transmission of PPDU using additional pilots for interference estimation and cancellation.

[0268] Correspondingly, the access point receives the first capability information from the site.

[0269] In some embodiments, the first capability information is carried through the Ultra-High Reliability Physical Layer Capabilities Information field.

[0270] Optionally, the access point may instruct or configure the first information to the site if the site reports the first capability information (i.e., the site supports the transmission of PPDU using additional pilots for interference estimation and cancellation).

[0271] In some embodiments, the first capability information may be carried in at least one of the following frames:

[0272] Probe Request Frame, Association Request Frame, Authentication Frame.

[0273] In some embodiments of this application, the method 200 further includes:

[0274] The access point sends a second capability information to the site, the second capability information indicating that the access point supports the transmission of PPDU using additional pilots for interference estimation and cancellation.

[0275] Correspondingly, the site receives the second capability information from the access point.

[0276] In some embodiments, the second capability information is carried through the UHR PHY Capabilities Information field.

[0277] In some embodiments, the second capability information may be carried in at least one of the following frames:

[0278] Beacon Frame, Probe Response Frame, Association Response Frame, Authentication Frame.

[0279] The following describes a wireless communication method according to a specific embodiment of this application, with reference to FIG7. As shown in FIG7, the method may include the following steps:

[0280] S301, the station reports first capability information to the access point. The first capability information is used to indicate that the station supports the transmission of PPDU using additional pilots for interference estimation and cancellation.

[0281] For example, the site reports the first capability information to the access point through the UHR PHY Capabilities Information field.

[0282] S302, the site reports measurements to the access point, such as SINR, RSSI, or other interference-related measurements.

[0283] S303, the access point determines additional pilot configuration for interference estimation and cancellation used in PPDU transmission, i.e., first information. For example, the access point can determine the first information based on the measurement reports from the site, or it can determine the first information in conjunction with information such as the priority or importance of the service carried in the PPDU. Further, the access point sends the first information to the site.

[0284] S304, the station sends or receives PPDU based on the first information.

[0285] In summary, a site or access point can transmit or receive PPDUs based on the first information, wherein the first information includes at least one of the following: an enable indication, a quantity configuration indication, a time domain configuration indication, and a frequency domain configuration indication for additional pilots used for interference estimation and cancellation, thereby enabling interference cancellation and elimination of PPDUs through additional pilots used for interference estimation and cancellation.

[0286] The method embodiments of this application have been described in detail above with reference to Figures 2 to 7. The device embodiments of this application have been described in detail below with reference to Figures 8 to 12. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0287] Figure 8 shows a schematic block diagram of a communication device 500 according to an embodiment of this application. The communication device 500 can be a station, or a component within a station, such as a chip, circuit, or module.

[0288] As shown in Figure 8, the communication device 500 includes:

[0289] Communication module 510 is used to send or receive physical layer protocol data unit (PPDU) according to the first information;

[0290] The first information includes at least one of the following:

[0291] Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots for interference estimation and cancellation;

[0292] Quantity configuration indicator, used to indicate or configure the number of additional pilots for interference estimation and cancellation used for PPDU transmission;

[0293] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0294] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0295] In some embodiments, the first information is used to indicate or configure the data portion of the PPDU.

[0296] In some embodiments, the first information is determined by the access point based on second information, wherein the second information includes at least one of the following:

[0297] The measurement reporting content of the station;

[0298] The service information carried in the PPDU;

[0299] The level of interference experienced by the site;

[0300] The measurement information of the access point;

[0301] The level of interference experienced by the access point.

[0302] In some embodiments, the proportion of the total frequency domain resources of the PPDU occupied by the additional pilots used for interference estimation and cancellation for PPDU transmission does not exceed a first threshold.

[0303] In some embodiments, the proportion of the additional pilot signals used for interference estimation and cancellation for PPDU transmission that occupy the total frequency domain resources of the PPDU is not less than a second threshold.

[0304] In some embodiments, the additional pilots for interference estimation and cancellation are zero-power pilots, or the additional pilots for interference estimation and cancellation are non-zero-power pilots.

[0305] In some embodiments, when the additional pilot for interference estimation and cancellation is a non-zero power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 1 or -1.

[0306] In some embodiments, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the frequency domain, or,

[0307] The multiple additional pilots used for interference estimation and cancellation form N additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes M additional pilots used for interference estimation and cancellation. The M additional pilots used for interference estimation and cancellation are continuous in the frequency domain, where N and M are positive integers greater than 1, or...

[0308] The additional pilot signals used for interference estimation and cancellation are discontinuous in the frequency domain.

[0309] In some embodiments, when the plurality of additional pilots for interference estimation and cancellation are discontinuous in the frequency domain, the plurality of additional pilots for interference estimation and cancellation are transmitted at equal intervals in the frequency domain, wherein the interval between the plurality of additional pilots for interference estimation and cancellation is W subcarriers, where W is a positive integer.

[0310] In some embodiments, each resource unit (RU) occupied by the PPDU includes at least one additional pilot for interference estimation and cancellation.

[0311] In some embodiments, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the time domain, or,

[0312] The plurality of additional pilots for interference estimation and cancellation constitute P additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes Q additional pilots for interference estimation and cancellation, which are continuous in the time domain, where P and Q are positive integers greater than 1, or

[0313] The additional pilot signals used for interference estimation and cancellation are discontinuous in the time domain.

[0314] In some embodiments, the plurality of additional pilots for interference estimation and cancellation are discontinuous in the time domain, and the maximum time interval between the discontinuous additional pilots for interference estimation and cancellation is Z orthogonal frequency division multiplexing (OFDM) symbols, where Z is a positive integer.

[0315] In some embodiments, the PPDU is an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHR MU PPDU), and the first information is configured or indicated through the U-SIG field and / or the UHR-SIG field in the UHR MU PPDU.

[0316] In some embodiments, the first information is carried through at least one of the following fields:

[0317] The physical layer version identifier field in the U-SIG domain;

[0318] The ignored fields in the U-SIG field;

[0319] The PPDU type and compression mode fields in the U-SIG field;

[0320] The common fields in the UHR-SIG domain;

[0321] User-specific fields in the UHR-SIG domain.

[0322] In some embodiments, the PPDU is an Ultra-Reliable Physical Layer Protocol Data Unit (UHRTB) based on a trigger frame, and the first information is configured or indicated through the U-SIG field of the UHRTB PPDU and / or the trigger frame corresponding to the UHRTB PPDU.

[0323] In some embodiments, the first information is carried through at least one of the following fields:

[0324] The physical layer version identifier field in the U-SIG domain;

[0325] The ignored fields in the U-SIG field;

[0326] The PPDU type and compression mode fields in the U-SIG field;

[0327] The public information field in the trigger frame;

[0328] The special user information field in the trigger frame;

[0329] The user information field in the trigger frame.

[0330] In some embodiments, the communication module 510 is further configured to:

[0331] The first capability information is reported to the access point, which indicates that the site supports the transmission of PPDU using additional pilots for interference estimation and cancellation.

[0332] In some embodiments, the first capability information is carried through the ultra-high reliability physical layer capability information domain.

[0333] Optionally, in some embodiments, the aforementioned transmitting or receiving module unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The aforementioned processing module may be one or more processors.

[0334] It should be understood that the apparatus 500 according to the embodiments of this application may correspond to the station in the method embodiments of this application, and the above and other operations and / or functions of each unit in the apparatus 500 are respectively to implement the corresponding process of the station in the embodiments of FIG2 to FIG7. For the sake of brevity, they will not be described in detail here.

[0335] Figure 9 is a schematic block diagram of another communication device 600 according to an embodiment of this application. The communication device 600 can be an access point, or a component within the access point, such as a chip, circuit, or module.

[0336] As shown in Figure 9, the communication device 600 of Figure 9 includes:

[0337] Communication module 610 is used to send or receive physical layer protocol data unit (PPDU) according to the first information;

[0338] The first information includes at least one of the following:

[0339] Enable indicator, used to indicate whether to enable the transmission of PPDU using additional pilot modes for interference estimation and cancellation;

[0340] Quantity configuration indicator for configuring the number of additional pilots used for interference estimation and cancellation in PPDU transmission;

[0341] Time-domain configuration indication, used to indicate or configure additional time-domain resources for pilots used for interference estimation and cancellation in PPDU transmission;

[0342] Frequency domain configuration indication, used to indicate or configure additional frequency domain resources for pilots used for interference estimation and cancellation in PPDU transmission.

[0343] In some embodiments, the first information is used to indicate or configure the data portion of the PPDU.

[0344] In some embodiments, the first information is determined by the access point based on second information, wherein the second information includes at least one of the following:

[0345] The measurement reporting content of the station;

[0346] The service information carried in the PPDU;

[0347] The level of interference experienced by the site;

[0348] The measurement information of the access point;

[0349] The level of interference experienced by the access point.

[0350] In some embodiments, the proportion of the total frequency domain resources of the PPDU occupied by the additional pilots used for interference estimation and cancellation for PPDU transmission does not exceed a first threshold.

[0351] In some embodiments, the proportion of the additional pilot signals used for interference estimation and cancellation for PPDU transmission that occupy the total frequency domain resources of the PPDU is not less than a second threshold.

[0352] In some embodiments, the additional pilots for interference estimation and cancellation are zero-power pilots, or the additional pilots for interference estimation and cancellation are non-zero-power pilots.

[0353] In some embodiments, when the additional pilot for interference estimation and cancellation is a non-zero power pilot, the pilot value corresponding to the additional pilot for interference estimation and cancellation is 1 or -1.

[0354] In some embodiments, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the frequency domain, or,

[0355] The multiple additional pilots used for interference estimation and cancellation form N additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes M additional pilots used for interference estimation and cancellation. The M additional pilots used for interference estimation and cancellation are continuous in the frequency domain, where N and M are positive integers greater than 1, or...

[0356] The additional pilot signals used for interference estimation and cancellation are discontinuous in the frequency domain.

[0357] In some embodiments, when the plurality of additional pilots for interference estimation and cancellation are discontinuous in the frequency domain, the plurality of additional pilots for interference estimation and cancellation are transmitted at equal intervals in the frequency domain, wherein the interval between the plurality of additional pilots for interference estimation and cancellation is W subcarriers, where W is a positive integer.

[0358] In some embodiments, each resource unit (RU) occupied by the PPDU includes at least one additional pilot for interference estimation and cancellation.

[0359] In some embodiments, the additional pilots for interference estimation and cancellation used for PPDU transmission include a plurality of additional pilots for interference estimation and cancellation; wherein, the plurality of additional pilots for interference estimation and cancellation are continuous in the time domain, or,

[0360] The plurality of additional pilots for interference estimation and cancellation constitute P additional pilot groups for interference estimation and cancellation. Each additional pilot group for interference estimation and cancellation includes Q additional pilots for interference estimation and cancellation, which are continuous in the time domain, where P and Q are positive integers greater than 1, or

[0361] The additional pilot signals used for interference estimation and cancellation are discontinuous in the time domain.

[0362] In some embodiments, the plurality of additional pilots for interference estimation and cancellation are discontinuous in the time domain, and the maximum time interval between the discontinuous additional pilots for interference estimation and cancellation is Z orthogonal frequency division multiplexing (OFDM) symbols, where Z is a positive integer.

[0363] In some embodiments, the PPDU is an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHR MU PPDU), and the first information is configured or indicated through the U-SIG field and / or the UHR-SIG field in the UHR MU PPDU.

[0364] In some embodiments, the first information is carried through at least one of the following fields:

[0365] The physical layer version identifier field in the U-SIG domain;

[0366] The ignored fields in the U-SIG field;

[0367] The PPDU type and compression mode fields in the U-SIG field;

[0368] The common fields in the UHR-SIG domain;

[0369] User-specific fields in the UHR-SIG domain.

[0370] In some embodiments, the PPDU is an Ultra-Reliable Physical Layer Protocol Data Unit (UHRTB) based on a trigger frame, and the first information is configured or indicated through the U-SIG field of the UHRTB PPDU and / or the trigger frame corresponding to the UHRTB PPDU.

[0371] In some embodiments, the first information is carried through at least one of the following fields:

[0372] The physical layer version identifier field in the U-SIG domain;

[0373] The ignored fields in the U-SIG field;

[0374] The PPDU type and compression mode fields in the U-SIG field;

[0375] The public information field in the trigger frame;

[0376] The special user information field in the trigger frame;

[0377] The user information field in the trigger frame.

[0378] In some embodiments, the communication module 610 is further configured to:

[0379] Receive first capability information from the site, the first capability information being used to indicate that the site supports the transmission of PPDU using additional pilots for interference estimation and cancellation.

[0380] In some embodiments, the first capability information is carried through the ultra-high reliability physical layer capability information domain.

[0381] Optionally, in some embodiments, the aforementioned transmitting or receiving module may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0382] It should be understood that the device 600 according to the embodiments of this application may correspond to the access point in the method embodiments of this application, and the above and other operations and / or functions of each unit in the device 600 are respectively to implement the corresponding process of the access point in the method embodiments shown in FIG2 to FIG7. For the sake of brevity, they will not be described in detail here.

[0383] Figure 10 is a schematic structural diagram of a communication device 700 provided in an embodiment of this application. The communication device 700 shown in Figure 10 includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0384] Optionally, as shown in FIG10, the communication device 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the methods in the embodiments of this application. For example, when the communication device 700 is a station, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the station, achieving the same technical effect. When the communication device 700 is an access point, the processor 710 can call and run a computer program from the memory 720 to implement the various steps of the method embodiments executed by the access point, achieving the same technical effect.

[0385] Alternatively, the memory 720 may be a separate device independent of the processor 710, or it may be integrated into the processor 710.

[0386] [Correction 31.10.2025 according to Rule 91] Optionally, as shown in FIG10, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0387] Optionally, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, and the number of antennas may be one or more.

[0388] Figure 11 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 800 shown in Figure 11 includes a processor 810, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0389] Optionally, as shown in FIG11, chip 800 may further include memory 820. Processor 810 can retrieve and run computer programs from memory 820 to implement the methods in the embodiments of this application.

[0390] Alternatively, the memory 820 may be a separate device independent of the processor 810, or it may be integrated into the processor 810.

[0391] Optionally, the chip 800 may also include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, for example, to acquire information or data sent by other devices or chips.

[0392] Optionally, the chip 800 may also include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

[0393] Optionally, the chip can be applied to the access point in the embodiments of this application, and the chip can implement the corresponding processes implemented by the access point in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0394] Optionally, the chip can be applied to the site in the embodiments of this application, and the chip can implement the corresponding processes implemented by the site in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0395] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0396] [Correction 31.10.2025 according to Rule 91] Figure 12 is a schematic block diagram of a communication system 900 provided in an embodiment of this application. As shown in Figure 12, the communication system 900 includes a station 910 and an access point 920.

[0397] The site 910 can be used to implement the corresponding functions implemented by the site in the above method, and the access point 920 can be used to implement the corresponding functions implemented by the access point in the above method. For the sake of brevity, these will not be elaborated here.

[0398] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0399] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0400] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0401] This application also provides a readable storage medium storing a computer program that, when executed by a processor, implements the various processes of the above method embodiments.

[0402] Optionally, the readable storage medium can be applied to the access point in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0403] Optionally, the readable storage medium can be applied to the site in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0404] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the various processes of the above-described method embodiments.

[0405] Optionally, the computer program product can be applied to the access point in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0406] Optionally, the computer program product can be applied to the site in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0407] This application also provides a computer program. When executed by a processor, this computer program implements the various processes of the above-described method embodiments.

[0408] Optionally, the computer program can be applied to the access point in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the access point in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0409] Optionally, the computer program can be applied to the site in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the site in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0410] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0411] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0412] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0413] The units described as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0414] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0415] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0416] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of wireless communication, wherein, include: Based on the first information, the site sends or receives Physical Layer Protocol Data Units (PPDUs). The first information includes at least one of the following: Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots, which are used for interference estimation and cancellation; A quantity configuration indicator for indicating or configuring the number of additional pilots used for PPDU transmission; A time-domain configuration indication for indicating or configuring the time-domain resources of the additional pilots used for PPDU transmission; or, Frequency domain configuration indication, used to indicate or configure the frequency domain resources of the additional pilot for PPDU transmission.

2. The method of claim 1, wherein, The first information is determined by the access point based on the second information, wherein the second information includes at least one of the following: The measurement reporting content of the station; The service information carried in the PPDU; The level of interference experienced by the site; The measurement information of the access point; or... The level of interference experienced by the access point.

3. The method of claim 1 or 2, wherein, The proportion of the additional pilot used for PPDU transmission that occupies the total frequency domain resources of the PPDU does not exceed a first threshold; and / or The proportion of the total frequency domain resources of the PPDU occupied by the additional pilot for PPDU transmission is not less than the second threshold.

4. The method of any one of claims 1-3, wherein, The additional pilots used for PPDU transmission include a plurality of pilots; wherein the plurality of pilots are consecutive in the frequency domain, or, The multiple pilots form N pilot groups, and each pilot group includes M pilots. The M pilots are continuous in the frequency domain, where N and M are positive integers greater than 1, or... The multiple pilots are discontinuous in the frequency domain.

5. The method of any one of claims 1-4, wherein, When the multiple pilots are discontinuous in the frequency domain, the multiple pilots are transmitted at equal intervals in the frequency domain, wherein the interval between the multiple pilots is W subcarriers, where W is a positive integer.

6. The method of any one of claims 1-5, wherein, Each resource unit RU occupied by the PPDU includes at least one of the additional pilots.

7. The method of any one of claims 1-6, wherein, The additional pilots used for PPDU transmission include a plurality of pilots; wherein the plurality of pilots are continuous in the time domain, or, The multiple pilots form P pilot groups, and each pilot group includes Q pilots, which are continuous in the time domain, where P and Q are positive integers greater than 1, or... The multiple pilot signals are discontinuous in the time domain.

8. The method of claim 7, wherein, The multiple pilots are discontinuous in the time domain, and the maximum time interval between the discontinuous pilots is Z orthogonal frequency division multiplexing (OFDM) symbols, where Z is a positive integer.

9. The method of any one of claims 1-8, wherein, The PPDU is an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHR MU PPDU), and the first information is configured or indicated through the U-SIG field and / or the UHR-SIG field in the UHR MU PPDU.

10. The method of any one of claims 1-8, wherein, The PPDU is an Ultra-Reliable Physical Layer Protocol Data Unit (UHRTB) based on trigger frames. The first information is configured or indicated through the U-SIG field of the UHRTB PPDU and / or the trigger frame corresponding to the UHRTB PPDU.

11. The method of any one of claims 1-10, wherein, The method further includes: The station reports first capability information to the access point, the first capability information being used to indicate that the station supports the transmission of PPDU using the additional pilot.

12. The method of claim 11, wherein, The first capability information is carried through the ultra-high reliability physical layer capability information domain.

13. A method of wireless communication, wherein include: Based on the first information, the access point sends or receives Physical Layer Protocol Data Units (PPDUs). The first information includes at least one of the following: Enable indicator, used to indicate whether to enable the transmission of PPDU using additional pilots, which are used for interference estimation and cancellation; A quantity configuration indicator for configuring the number of additional pilots for PPDU transmission; A time-domain configuration indication for indicating or configuring the time-domain resources of the additional pilots used for PPDU transmission; or, Frequency domain configuration indication, used to indicate or configure the frequency domain resources of the additional pilot for PPDU transmission.

14. The method of claim 13, wherein, The method further includes: The access point receives first capability information from the site, the first capability information being used to indicate that the site supports the transmission of PPDU using the additional pilot.

15. A wireless communication device, comprising: include: The communication module is used to send or receive Physical Layer Protocol Data Units (PPDUs) based on the first information. The first information is used to indicate or configure the data portion of the PPDU; The first information includes at least one of the following: Enable indicator, used to indicate or configure whether to enable the transmission of PPDU using additional pilots, which are used for interference estimation and cancellation; A quantity configuration indicator for indicating or configuring the number of additional pilots used for PPDU transmission; A time-domain configuration indication for indicating or configuring the time-domain resources of the additional pilots used for PPDU transmission; or, Frequency domain configuration indication, used to indicate or configure the frequency domain resources of the additional pilot for PPDU transmission.

16. A station, wherein, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 12.

17. An access point, wherein, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 13 to 14.

18. A chip, wherein, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 12, or the method as claimed in any one of claims 13 to 14.

19. A readable storage medium, wherein, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 12, or the method as claimed in any one of claims 13-14.

Images