Data transmission method, apparatus, and device

Abstract

The application provides a data transmission method, device and equipment, and the method applied to an access point device comprises: the access point device generates a first physical layer protocol data unit (PPDU); the access point device sends the first PPDU to a first station device on a first resource unit (RU); wherein the first PPDU comprises interference cancellation pilot subcarriers and data subcarriers, the interference cancellation pilot subcarriers are used for interference estimation, the data subcarriers are used for carrying data information, the number of interference cancellation pilot subcarriers is determined by the number of subcarriers contained in the first RU and a preset ratio, the preset ratio is the ratio value of the number of interference cancellation pilot subcarriers to the number of subcarriers, and the range of the preset ratio is 1% to 15%. It can realize reasonable use of channel resources and effective interference estimation and / or interference cancellation of data information.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a data transmission method, apparatus, and device. Background Technology

[0002] Improving reliability and more efficient spectrum utilization are key objectives of UHR (Ultra-High Reliability). One of the most significant factors contributing to the limited reliability of Wireless Local Area Networks (WLANs) is interference, caused by operating in unlicensed frequency bands. Interference is a very prominent real-world problem in WLANs, and it exists in all WLAN frequency bands (2.4GHz / 5GHz / 6GHz), both uplink and / or downlink. Random, unpredictable, and accidental interference is one of the main reasons for the limited reliability of WLANs. Interfering signals can occupy any bandwidth (narrowband or wideband) and can come from multiple sources, such as: any valid WLAN signal, 3GPP transmissions in unlicensed frequency bands, 2MHz narrowband-assisted ultrawideband UWB (as part of 802.15.4ab), and Bluetooth (2.4GHz band). Interference is not only a problem of demodulation for each PPDU (PHY Protocol Data Unit), but also a problem in link adaptation and related PHY (Physical Layer) measurements.

[0003] Therefore, how to effectively estimate and cancel interference for data transmitted in the bandwidth is an urgent problem to be solved. Although IEEE 802.11bn (Wi-Fi 8) introduced interference cancellation (IM) pilots, the specific design of IM pilots has not yet been determined. Summary of the Invention

[0004] This application provides a data transmission method, apparatus, and device that enables effective interference estimation and / or interference elimination of data information.

[0005] Firstly, a data transmission method is provided, applied to an access point device, the method comprising:

[0006] The access point device generates a first physical layer protocol data unit (PPDU).

[0007] The access point device sends the first PPDU to the first site device on the first resource unit RU; wherein, the first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier, the interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information;

[0008] The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0009] In some embodiments, the preset ratio ranges from 8% to 12%.

[0010] In some embodiments, the preset ratio is 10%.

[0011] In some embodiments, the interference cancellation pilot subcarriers are uniformly arranged or arranged at set intervals in the first RU.

[0012] In some embodiments, the interference cancellation pilot subcarrier includes existing pilot subcarriers and additional pilot subcarriers; or the interference cancellation pilot subcarrier includes only additional pilot subcarriers.

[0013] Wherein, the existing pilot subcarrier is a subcarrier used to carry the existing pilot, and the additional pilot subcarrier is a subcarrier used to carry the additional pilot, wherein the additional pilot is a pilot other than the existing pilot that is reconfigured according to the number of subcarriers of the first RU.

[0014] In some embodiments, when the first RU is a 26-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 2 or 3;

[0015] When the first RU is a 52-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 6;

[0016] When the first RU is a 106-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 12;

[0017] When the first RU is a 242-tone RU, if the bandwidth is 20MHz, the number of interference cancellation pilot subcarriers is an integer determined from 12 to 29; if the bandwidth is 40MHz or 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 8 to 29.

[0018] When the first RU is a 484-tone RU, if the bandwidth is 40MHz, the number of interference cancellation pilot subcarriers is an integer determined from 22 to 58; if the bandwidth is 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 32 to 58.

[0019] When the first RU is a 996-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 64 to 119.

[0020] In some embodiments, the value of the pilot carried in the interference cancellation pilot subcarrier is at least one of 1, 0, -1.

[0021] In some embodiments, the first PPDU includes an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHRMU) PPDU, an Ultra-Reliable Triggered Physical Layer Protocol Data Unit (UHRTB) PPDU, or an Ultra-Reliable Extended Long Distance Physical Layer Protocol Data Unit (UHRERL) PPDU.

[0022] Wherein, when the first PPDU is a UHR ELR PPDU and is encoded using a low-density parity-check code (LDPC), if the UHR ELR PPDU includes the interference cancellation pilot subcarrier, then the index of the interference cancellation pilot subcarrier is the same as the index of the 52-tone RU in 20MHz.

[0023] Secondly, a data transmission method is provided, applied to a site device, the method comprising:

[0024] The first PPDU is received by the access point device on the first RU. The first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier. The interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information.

[0025] Interference estimation is performed on the data information based on the interference cancellation pilot subcarrier;

[0026] The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0027] Thirdly, a data transmission device is provided, comprising:

[0028] The generation module is used to generate the first physical layer protocol data unit (PPDU).

[0029] The transmitting module is used by the access point device to transmit the first PPDU to the first site device on the first resource unit RU; wherein the first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier, the interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information;

[0030] The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0031] Fourthly, a data transmission device is provided, comprising:

[0032] The receiving module is used to receive a first PPDU transmitted by the access point device on the first RU. The first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier. The interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information.

[0033] The interference estimation module is used to perform interference estimation on the data information based on the interference cancellation pilot subcarrier;

[0034] The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0035] Fifthly, an access point device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0036] In a sixth aspect, a site device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0037] 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.

[0038] 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.

[0039] A ninth aspect provides a communication device, comprising: 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 methods of any one of the first to second aspects or their respective implementations.

[0040] In a tenth aspect, a communication system is provided, including an access point device and a terminal device, wherein the access point device is configured to perform the method of any one of the first aspects or its implementations described above, and the terminal device is configured to perform the method of any one of the second aspects or its implementations described above.

[0041] Through the above technical solution, a first PPDU is generated by the access point equipment. The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The data subcarriers are used to carry data information, and the interference cancellation subcarriers are used to cancel interference on the data information carried by the data subcarriers. Then, the first PPDU is sent to the first site equipment on the first RU. Since the number of interference cancellation pilot subcarriers is determined by the number of subcarriers contained in the first RU and a preset ratio, the preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers. The preset ratio ranges from 1% to 15%. The number of interference cancellation pilot subcarriers is designed according to the preset ratio range of 1% to 15%. Since the preset ratio range is not large, the interference cancellation pilot subcarriers occupy less resources. At the same time, since the interference cancellation pilot subcarriers are added, the effectiveness of interference estimation and / or interference cancellation can also be improved. That is, by reasonably setting the number of interference cancellation pilot subcarriers contained in the first PPDU, the rational use of channel resources and the effective interference estimation and / or interference cancellation of data information can be achieved. Attached Figure Description

[0042] Picture 1 This is a schematic diagram of a communication system applicable to embodiments of this application.

[0043] Picture 2 This is one of the interactive schematic diagrams of the data transmission method provided in the embodiments of this application.

[0044] Picture 3 This is the second interactive schematic diagram of the data transmission method provided in the embodiments of this application.

[0045] Picture 4 This is one of the schematic block diagrams of a data transmission device provided according to an embodiment of this application.

[0046] Picture 5 This is a second schematic block diagram of a data transmission device provided according to an embodiment of this application.

[0047] Picture 6 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0048] Picture 7 This is a schematic block diagram of a chip provided according to an embodiment of this application.

[0049] Picture 8 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0050] 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.

[0051] 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.

[0052] 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".

[0053] 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.

[0054] 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, such as B being obtainable through A; or it can mean that A indirectly instructs B, such as A instructing C, where B is obtainable through C, for example, B and C are related.

[0055] 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 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bn, or next-generation protocols.

[0056] Picture 1 A schematic structural diagram of a communication system 100 applicable to embodiments of this application is shown. The communication system 100 may include an access point device 110 and a site device 120. The site device 120 can access the network through the access point device 110.

[0057] Access points can support communication or sensing based on WiFi protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bf, 802.11bn, or next-generation protocols.

[0058] The site can support communication or sensing based on WiFi protocols, such as 802.11a, 802.11ax, 802.11ac, 802.11b, 802.11be, 802.11g, 802.11n, 802.11bf, 802.11bn, or next-generation protocols.

[0059] The communication in the communication system 100 can be communication between access points and stations, or communication between stations, or communication between access points.

[0060] 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.

[0061] A station (STA) includes access point stations (AP STA) and non-access point stations (non-AP stations). For simplicity, access point stations are usually referred to as access points (AP), and non-access point stations as stations (STA). Station equipment is also called a station, a non-access point station (Non-AP STA), or a non-access point node.

[0062] 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.

[0063] 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).

[0064] In this application embodiment, the site can 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 care, 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.

[0065] It should be understood that Picture 1 Only one access point and two sites are shown in the example. Optionally, the communication system 100 may include multiple access points or other numbers of sites. This application embodiment does not limit this.

[0066] 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.

[0067] To facilitate understanding of the embodiments of this application, the related technologies are described.

[0068] Currently, in Wi-Fi standards, OFDM (Orthogonal Frequency Division Multiplexing) symbols are composed of subcarriers, mainly data subcarriers, pilot subcarriers, and unused subcarriers. Unused subcarriers include DC (Direct Current) subcarriers, guard band subcarriers located at the frequency band edge, and null subcarriers. Pilot subcarriers may exist in the data domain, or in the EHT-LTF (Extremely High Throughput Long Training Field) or UHR-LTF (Ultra-High Reliability Long Training Field) domains. Pilot subcarriers are used for phase and parameter tracking, as well as channel estimation.

[0069] 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.

[0070] Picture 2 This is an interactive schematic diagram of a data transmission method according to an embodiment of this application. The method is applied to an access point device and includes at least the following:

[0071] S110, the access point device generates a first physical layer protocol data unit (PPDU).

[0072] S120, the access point device sends the first PPDU to the first site device on the first resource unit RU. The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The interference cancellation pilot subcarriers are used for interference estimation, and the data subcarriers are used to carry data information. The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0073] The data transmission method provided in this application embodiment generates a first PPDU through an access point device. The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The data subcarriers are used to carry data information, and the interference cancellation subcarriers are used to cancel interference on the data information carried in the data subcarriers. Then, the first PPDU is sent to a first site device on a first RU. Since the number of interference cancellation pilot subcarriers is determined by the number of subcarriers contained in the first RU and a preset ratio, the preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers. The preset ratio ranges from 1% to 15%. The number of interference cancellation pilot subcarriers is designed according to the preset ratio range of 1% to 15%. Since the preset ratio range is not large, the interference cancellation pilot subcarriers occupy less resources. At the same time, since the interference cancellation pilot subcarriers are added, the effectiveness of interference estimation and / or interference cancellation can also be improved. That is, by reasonably setting the number of interference cancellation pilot subcarriers contained in the first PPDU, the rational use of channel resources and the effective interference estimation and / or interference cancellation of data information can be achieved.

[0074] It is worth noting that the number of interference cancellation pilot subcarriers and data subcarriers in the first PPDU is related to the number of subcarriers contained in the first RU. The more subcarriers contained in the first RU, the more interference cancellation pilot subcarriers are in the first PPDU, in order to meet the requirements for effective interference estimation and / or interference cancellation of data information. Understandably, the preset ratio ranges from 1% to 15%. This preset ratio range ensures that the number of interference cancellation pilot subcarriers occupies as few resources as possible while achieving effective interference estimation / cancellation. It should be noted that in some embodiments, subcarriers are also referred to as tones, derived from the English word "tone".

[0075] In some embodiments, the preset ratio ranges from 8% to 12%, and more specifically, the preset ratio is 10%.

[0076] To further determine a more reasonable number of interference cancellation pilot subcarriers in the first PPDU, the preset ratio ranges from 8% to 12%, and more specifically, it can be 10%.

[0077] Understandably, when determining the number of interference cancellation pilot subcarriers, it can be directly determined by the number of subcarriers included in the first RU and a preset ratio. Alternatively, the range of the number of interference cancellation pilot subcarriers can be determined first by the range of the number of subcarriers included in the first RU and the preset ratio, and then a fixed value can be determined within this range and used consistently in the subsequent design of the interference cancellation pilot subcarrier index. Furthermore, the value of the interference cancellation pilot subcarriers can be determined within this range based on the value patterns of existing pilot subcarriers. This allows for the inclusion of as many existing pilot subcarriers as possible, reducing the overhead of introducing additional pilot subcarriers. A preset ratio approaching 10% ensures that the number of interference cancellation pilot subcarriers is as reasonable as possible. On the one hand, it avoids adding too many interference cancellation pilots to the first PPDU, thus avoiding resource waste; on the other hand, appropriately adding interference cancellation pilots improves the effectiveness of interference estimation and / or interference cancellation.

[0078] In some embodiments, the interference cancellation pilot subcarriers are uniformly arranged or arranged at set intervals in the first RU.

[0079] Uniformly arranged interference cancellation pilot subcarriers in the first RU means that the number of subcarriers spaced between each interference cancellation pilot subcarrier is the same. For example, the first interference cancellation pilot subcarrier is spaced 21 subcarriers apart from the second interference cancellation pilot subcarrier, the second interference cancellation pilot subcarrier is spaced 21 subcarriers apart from the third interference cancellation pilot subcarrier, and so on. The i-th interference cancellation pilot subcarrier is spaced 21 subcarriers apart from the (i+1)-th interference cancellation pilot subcarrier, until all interference cancellation pilot subcarriers are arranged in the first RU. The arrangement of interference cancellation pilot subcarriers at predetermined intervals in the first RU means that the interference cancellation pilot subcarriers are arranged at intervals according to a predetermined pattern. Understandably, this predetermined pattern follows the principle of maximizing uniformity. For example, the interval between the first and second interference cancellation pilot subcarriers is 26 subcarriers, the interval between the second and third interference cancellation pilot subcarriers is 24 subcarriers, the interval between the third and fourth interference cancellation pilot subcarriers is 26 subcarriers, the interval between the fourth and fifth interference cancellation pilot subcarriers is 24 subcarriers, and so on, until all interference cancellation pilot subcarriers are arranged in the first RU. This achieves the effect of handling both narrowband and wideband interference.

[0080] It is worth noting that in some scenarios where the subcarriers cannot be arranged completely evenly, the principle of arranging them as evenly as possible can be followed to arrange the interference elimination pilot subcarriers in the first RU, thereby achieving the effect of handling both narrowband and broadband interference.

[0081] In some embodiments, the interference cancellation pilot subcarrier includes existing pilot subcarriers and additional pilot subcarriers; or the interference cancellation pilot subcarrier includes only additional pilot subcarriers. The existing pilot subcarriers are subcarriers used to carry existing pilots, which refer to pilots inherited from 802.11be, meaning that the number and location of existing pilots in this application are the same as those specified in 802.11be. The additional pilot subcarriers are subcarriers used to carry additional pilots, which are pilots other than the existing pilots reconfigured according to the size of the first RU.

[0082] Interference cancellation pilot subcarriers may include only additional pilot subcarriers, or they may include both additional and existing pilot subcarriers, as long as there are reasonable interference cancellation pilot subcarriers that can achieve effective interference estimation and / or interference cancellation.

[0083] In some embodiments, if a first additional pilot subcarrier exists that is the same as or adjacent to the existing pilot subcarrier, the first additional pilot subcarrier is replaced with the same or adjacent existing pilot subcarrier. Replacing the same or adjacent first additional pilot subcarrier with an existing pilot subcarrier minimizes the overhead of introducing an additional pilot subcarrier.

[0084] In some embodiments, the value of the pilot carried in the interference cancellation pilot subcarrier is at least one of 1, 0, -1, which is simple and easy to implement and follows the existing pilot value rules.

[0085] In some embodiments, the first PPDU includes an Ultra High Reliability Multi-User Physical Protocol Data Unit (UHR MUPPDU), an Ultra High Reliability Trigger-Based Physical Protocol Data Unit (UHR TB PPDU), or an Ultra High Reliability Extended Long Range Physical Protocol Data Unit (UHR ELR PPDU).

[0086] Wherein, when the first PPDU is a UHR ELR PPDU and is encoded using Low-Density Parity-Check Code (LDPC), if the UHR ELR PPDU includes the interference cancellation pilot subcarrier, then the index of the interference cancellation pilot subcarrier is the same as the index of the 52-tone RU in 20MHz.

[0087] It should be noted that the first PPDU can be a UHR MU PPDU, a UHR TB PPDU, or a UHR ELR PPDU. When the first PPDU is a UHR ELR PPDU and uses LDPC encoding, if IM pilot is enabled, i.e., the UHR ELR PPDU includes interference cancellation pilot subcarriers, then the index of the interference cancellation pilot subcarriers in the UHR ELR PPDU is the same as the index of the 52-tone RU in 20MHz; when BCC (Binary Convolutional Code) encoding is used, IM pilot is not enabled, i.e., the UHR ELR PPDU does not include interference cancellation pilot subcarriers.

[0088] The following explanation focuses on the application of interference cancellation pilots in first resource units of different sizes and scenarios (such as non-OFDMA RRU and OFDMA RRU). Before proceeding, the meanings of the symbols in each specific implementation are explained: {a, b, ..., m, n} represents the index values ​​of the interference cancellation pilot subcarriers. {-a:-b,c:d} indicates a value range between -a and -b, and between c and d, including -a, -b, c, and d. {-a:-b,c:d,...e:f} indicates a value range between -a and -b, between c and d, and between e and f, including -a, -b, c, d, e, and f. {a:x:b} indicates values ​​starting with a, ending with b, and intervals of x. {-a:x:-b, c:x:d} indicates values ​​within the range {-a:-b,c:d} with intervals of x. The pilot index range is already defined in existing communication protocols. This application is based on the design of existing communication protocols, therefore the pilot index ranges of various types of resource units are directly referenced in this application without further explanation. The number of interference cancellation pilot subcarriers is determined not only by satisfying the range of 1% to 15% of the number of subcarriers in the first RU relative to a preset ratio, but also by following the existing pilot subcarrier value rules. This reduces the number of interference cancellation pilot subcarrier values ​​while meeting the minimum pilot overhead, avoiding overly complex design. For ease of description, the interference cancellation pilot and the interference cancellation pilot subcarrier have the same number and index references in the following embodiments; the additional pilot and the additional pilot subcarrier have the same number and index references; and the existing pilot and the existing pilot subcarrier have the same number and index references.

[0089] First, the application to non-OFDMA RRUs (non-Orthogonal Frequency Division Multiple Access Regular Resource Units):

[0090] (1) If the first RU is a single 242-tone RU of 20MHz, the number of additional pilots is a fixed integer between 12 and 29. That is, an integer is determined between 12 and 29, and this integer is always used in the subsequent design of the pilot index without being changed. It can be understood that the number of subcarriers of the first RU is 242-tone, and the preset ratio ranges from 1% to 15%. At this time, the number of additional pilots can range from 1 to 36, and 12 to 29 is a numerical range that covers 1 to 36 and is close to the preset ratio of 10%. The pilot index range of the additional pilot is {-122:-2,2:122}, and can partially include the pilot index of the existing pilot {-116,-90,-48,-22,22,48,90,116}. Among them, {-122:-2,2:122} means that it includes values ​​between -122 and -2 and between 2 and 122.

[0091] For an additional pilot number of 12, the specific pilot index is one of {-107,-86,-65,-44,-23,-2,2,23,44,65,86,107}, {-102,-82,-62,-42,-22,-2,2,22,42,62,82,102}, or {-122,-102,-82,-62,-42,-22,22,42,62,82,102,122}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-122:-2,2:122}.

[0092] For an additional pilot quantity of 13, the specific pilot index is 20MHz 242-tone RU. The number of interference cancellation pilot subcarriers is 12. Add any number from {-10:1:-3,3:1:10} to the index. Here, {-10:1:-3,3:1:10} means taking values ​​with an interval of 1 between -10 and -3, and taking values ​​with an interval of 1 between 3 and 10.

[0093] For an additional pilot number of 14, the specific pilot indices are: {-104,-87,-70,-53,-36,-19,-2,2,19,36,53,70,87,104} or {-121,-104,-87,-70,-53,-36,-19,19,36,53,70,87,104,121}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0094] For an additional 15 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 14. Add any number from {-10:1:-3,3:1:10} to the index.

[0095] For an additional pilot number of 16, the specific pilot indices are: {-107,-92,-77,-62,-47,-32,-17,-2,2,17,32,47,62,77,92,107} or {-122,-107,-92,-77,-62,-47,-32,-17,17,32,47,62,77,92,107,122}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0096] For an additional 17 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 16. Add any number from {-10:1:-3,3:1:10} to the index.

[0097] For an additional pilot number of 18, the specific pilot indices are: {-122,-108,-94,-80,-66,-52,-38,-24,-10,10,24,38,52,66,80,94,108,122} or {-114,-100,-86,-72,-58,-44,-30,-16,-2,2,16,30,44,58,72,86,100,114}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0098] For an additional 19 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 18. Add any number from {-10:1:-3,3:1:10} to the index.

[0099] For an additional 20 pilots, the specific pilot indices are: {-122,-109,-96,-83,-70,-57,-44,-31,-18,-5,5,18,31,44,57,70,83,96,109,122} or {-119,-106,-93,-80,-67,-54,-41,-28,-15,-2,2,15,28,41,54,67,80,93,106,119}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0100] For an additional 21 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 20. Add any number from {-10:1:-3,3:1:10} to the index.

[0101] For the additional pilot number 22, the specific pilot indices are: {-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,-2,2,13,24,35,46,57,68,79,90,101,112} or {-122,-111,-100,-89,-78,-67,-56,-45,-34,-23,-12,12,23,34,45,56,67,78,89,100,111,122}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0102] For an additional 23 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 22. Add any number from {-10:1:-3,3:1:10} to the index.

[0103] For an additional 24 pilots, the specific pilot indices are: {-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,-2,2,12,22,32,42,52,62,72,82,92,102,112} or {-122,-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,12,22,32,42,52,62,72,82,92,102,112,122}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-122:-2,2:122}.

[0104] For an additional 25 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 24. Add any number from {-10:1:-3,3:1:10} to the index.

[0105] For an additional 26 pilots, the specific pilot indices are: {-122,-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,-2,2,12,22,32,42,52,62,72,82,92,102,112,122}; or the indices obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-122:-2,2:122}.

[0106] For an additional 27 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 26. Add any number from {-10:1:-3,3:1:10} to the index.

[0107] For an additional pilot number of 28, the specific pilot indices are: {-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29,-20,-11,-2,2,11,20,29,38,47,56,65,74,83,92,101,110,119} or {-122,-113,-104, -95,-86,-77,-68,-59,-50,-41,-32,-23,-14,-5,5,14,23,32,41,50,59,68,77,86,95,104,113,122}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-122:-2,2:122}.

[0108] For an additional 29 pilots, the specific pilot index is 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 28. Add any number from {-10:1:-3,3:1:10} to the index.

[0109] (2) If the first RU is a single 484-tone RRU with a frequency of 40MHz, the number of additional pilots is a fixed integer between 22 and 58. That is, an integer is determined between 22 and 58, and this integer is always used in the subsequent design of the pilot index without being changed. It can be understood that the number of subcarriers of the first RU is 484-tone, and the preset ratio ranges from 1% to 15%. At this time, the number of additional pilots can range from 1 to 72, and 22 to 58 is a numerical range that covers 1 to 72 and is close to the preset ratio of 10%. The pilot index range of this additional pilot is {-244:-3,3:244}, and it can partially include the pilot index of the existing pilot {-238,-212,-170,-144,-104,-78,-36,-10,10,36,78,104,144,170,212,238}.

[0110] For the additional pilot number 22, the specific pilot indices are: {-223,-201,-179,-157,-135,-113,-91,-69,-47,-25,-3,3,25,47,69,91,113,135,157,179,201,223} or {-244,-222,-200,-178,-156,-134,-112,-90,-68,-46,-24,24,46,68,90,112,134,156,178,200,222,244}; or the indices obtained by shifting these pilot indices to the left and right by a certain number of index bits, with the left and right shift range not exceeding {-244:-3,3:244}.

[0111] For an additional 23 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 22, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0112] For an additional pilot number of 24, the specific pilot indices are: {-234,-213,-192,-171,-150,-129,-108,-87,-66,-45,-24,-3,3,24,45,66,87,108,129,150,171,192,213,234} or {-244,-223,-202,-1 81,-160,-139,-118,-97,-76,-55,-34,-13,13,34,55,76,97,118,139,160,181,202,223,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0113] For an additional 25 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 24. Add any number from {-10:1:-3,3:1:10} to the index.

[0114] For an additional pilot number of 26, the specific pilot indices are: {-231,-212,-193,-174,-155,-136,-117,-98,-79,-60,-41,-22,-3,3,22,41,60,79,98,117,136,155,174,193,212,231} or {-244,-225,-206,-18}. 7,-168,-149,-130,-111,-92,-73,-54,-35,-16,16,35,54,73,92,111,130,149,168,187,206,225,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0115] For an additional 27 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 26, and any number from {-10:1:-3,3:1:10} is added to the index.

[0116] For an additional pilot number of 28, the specific pilot indices are: {-237,-219,-201,-183,-165,-147,-129,-111,-93,-75,-57,-39,-21,-3,3,21,39,57,75,93,111,129,147,165,183,201,219,237} or {-244,-226,-208,-19}. 0,-172,-154,-136,-118,-100,-82,-64,-46,-28,-10,10,28,46,64,82,100,118,136,154,172,190,208,226,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0117] For an additional 29 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 28. Add any number from {-10:1:-3,3:1:10} to the index.

[0118] For an additional pilot quantity of 30, the specific pilot indices are: {-244,-227,-210,-193,-176,-159,-142,-125,-108,-91,-74,-57,-40,-23,-6,6,23,40,57,74,91,108,125,142,159,176,193,210,227,244} or {-241,-224,-207,- 190,-173,-156,-139,-122,-105,-88,-71,-54,-37,-20,-3,3,20,37,54,71,88,105,122,139,156,173,190,207,224,241}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0119] For an additional 31 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 30. Add any number from {-10:1:-3,3:1:10} to the index.

[0120] For an additional 32 pilots, the specific pilot indices are: {-243,-227,-211,-195,-195,-179,-163,-147,-131,-115,-99,-83,-67,-51,-35,-19,-3,3,19,35,51,67,83,99,115,131,147,163,179,195,211,227,243} or {-244,-228,-212}. ,-196,-180,-164,-148,-132,-116,-100,-84,-68,-52,-36,-20,-4,4,20,36,52,68,84,100,116,132,148,164,180,196,212,228,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0121] For an additional 33 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 32. Add any number from {-10:1:-3,3:1:10} to the index.

[0122] For an additional pilot number of 34, the specific pilot indices are: {-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78,-63,-48,-33,-18,-3,3,18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243} or {-244,-229,-214,- 199,-184,-169,-154,-139,-124,-109,-94,-79,-64,-49,-34,-19,-4,4,19,34,49,64,79,94,109,124,139,154,169,184,199,214,229,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0123] For an additional 35 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 34. Add any number from {-10:1:-3,3:1:10} to the index.

[0124] For an additional pilot number of 36, the specific pilot indices are: {-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,-101,-87,-73,-59,-45,-31,-17,-3,3,17,31,45,59,73,87,101,115,129,143,157,171,185,199,213,227,241} or {-244,-230,-216,- 202,-188,-174,-160,-146,-132,-118,-104,-90,-76,-62,-48,-34,-20,-6,6,20,34,48,62,76,90,104,118,132,146,160,174,188,202,216,230,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0125] For an additional 37 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 36. Add any number from {-10:1:-3,3:1:10} to the index.

[0126] For an additional pilot number of 38, the specific pilot indices are: {-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,-68,-55,-42,-29,-16,-3,3,16,29,42,55,68,81,94,107,120,133,146,159,172,185,198,211,224,237} or {-244,-231,-218,-20}. 5,-192,-179,-166,-153,-140,-127,-114,-101,-88,-75,-62,-49,-36,-23,-10,10,23,36,49,62,75,88,101,114,127,140,153,166,179,192,205,218,231,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0127] For an additional 39 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 38. Add any number from {-10:1:-3,3:1:10} to the index.

[0128] For an additional 40 pilots, the specific pilot indices are: {-231,-219,-207,-195,-183,-171,-183,-171,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231} and {-243,-231,-219,-207,-195,-183,-171}.

[0129] -159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243} {-244,-232,-220,-208,-196,-184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-52,-40,-28,-16,16,28,40,52,64,76,88,100,112,124,1} One of the following: 36,148,160,172,184,196,208,220,232,244}, {-232,-220,-208,-196,-184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-52,-40,-28,-16,-4,4,16,28,40,52,64,76,88,100,112,124,136,148,160,172,184,196,208,220,232}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0130] For an additional pilot quantity of 41, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 40. Add any number from {-10:1:-3,3:1:10} to the index.

[0131] For an additional 42 pilots, the specific pilot indices are: {-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243} or {-244,-232,-220,-208,-196,

[0132] -184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-52,-40,-28,-16,-4,4,16,28,40,52,64,76,88,100,112,124,136,148,160,172,184,196,208,220,232,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0133] For an additional 43 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 42. Add any number from {-10:1:-3,3:1:10} to the index.

[0134] For an additional 44 pilots, the specific pilot indices are: {-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234} or {-244,-233,-222,-21 1,-200,-189,-178,-167,-156,-145,-134,-123,-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,13,24,35,46,57,68,79,90,101,112,123,134,145,156,167,178,189,200,211,222,233,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0135] For an additional 45 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 44. Add any number from {-10:1:-3,3:1:10} to the index.

[0136] For an additional 46 pilots, the specific pilot indices are: {-244,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,244} or {-244,-233,-222,- 211,-200,-189,-178,-167,-156,-145,-134,-123,-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,-3,3,13,24,35,46,57,68,79,90,101,112,123,134,145,156,167,178,189,200,211,222,233,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0137] For an additional 47 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 46, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0138] For an additional 48 pilots, the specific pilot indices are: {-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233}, { -243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243}、{-244,-234,-224,-2 14,-204,-194,-184,-174,-164,-154,-144,-134,-124,-114,-104,-94,-84,-74,-64,-54,-44,-34,-24,-14,14,24,34,44,54,64,74,84,94,104,114,124,134,144,154,164,174,184,194,204,214,224,234,244}、{-234,-224,-214,-204,-194,-184,-17 One of {4, -164, -154, -144, -134, -124, -114, -104, -94, -84, -74, -64, -54, -44, -34, -24, -14, -4, 4, 14, 24, 34, 44, 54, 64, 74, 84, 94, 104, 114, 124, 134, 144, 154, 164, 174, 184, 194, 204, 214, 224, 234}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3, 3:244}.

[0139] For an additional 49 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 48, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0140] For an additional pilot quantity of 50, the specific pilot indices are: {-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243} or {-244,-234,-224,- 214,-204,-194,-184,-174,-164,-154,-144,-134,-124,-114,-104,-94,-84,-74,-64,-54,-44,-34,-24,-14,-4,4,14,24,34,44,54,64,74,84,94,104,114,124,134,144,154,164,174,184,194,204,214,224,234,244}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0141] For an additional 51 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 50. Add any number from {-10:1:-3,3:1:10} to the index.

[0142] For the additional pilot number 52, the specific pilot indices are: {-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228}, {-2 37,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237}、{-244,-235,-226,-217, -208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64,-55,-46,-37,-28,-19,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172,181,190,199,208,217,226,235,244}、{-235,-226,-217,-208,-199,-190,-181,- One of the following: 172,-163,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64,-55,-46,-37,-28,-19,-10,10,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172,181,190,199,208,217,226,235; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3,3:244}.

[0143] For an additional 53 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 52, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0144] For the additional pilot number 54, the specific pilot indices are: {-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30} ,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237}、{-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,

[0145] One of the following: -136, -127, -118, -109, -100, -91, -82, -73, -64, -55, -46, -37, -28, -19, -10, 10, 19, 28, 37, 46, 55, 64, 73, 82, 91, 100, 109, 118, 127, 136, 145, 154, 163, 172, 181, 190, 199, 208, 217, 226, 235, 244; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3, 3:244}.

[0146] For an additional 55 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 54. Add any number from {-10:1:-3,3:1:10} to the index.

[0147] For the additional pilot number 56, the specific pilot indices are: {-242,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21}

[0148] -12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237,242}、{-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,-9 One of the following: 1, -82, -73, -64, -55, -46, -37, -28, -19, -10, -3, 3, 10, 19, 28, 37, 46, 55, 64, 73, 82, 91, 100, 109, 118, 127, 136, 145, 154, 163, 172, 181, 190, 199, 208, 217, 226, 235, 244; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3, 3:244}.

[0149] For an additional 57 pilots, the specific pilot index is 40MHz 484-tone RU. The number of interference cancellation pilot subcarriers is 56, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0150] For an additional 58 pilots, the specific pilot indices are: {-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,-11,-3,3,1} 1,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,171,179,187,195,203,211,219,227}、{-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-15 5,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,-11,11,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,171,17 9,187,195,203,211,219,227,235}、{-243,-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,

[0151] -35,-27,-19,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,171,179,187,195,203,211,219,227,235,243}、{-244,-236,-228,-220,-212,-204,-196,-188,-180,-172,-164,-156,-148,-140,-132,-1 24,-116,-108,-100,-92,-84,-76,-68,-60,-52,-44,-36,-28,-20,20,28,36,44,52,60,68,76,84,92,100,108,116,124,132,140,148,156,164,172,180,188,196,204,212,220,228,236,244}、{-236,-228,-220,-212,-204,-196,

[0152] -188, -180, -172, -164, -156, -148, -140, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, -20, -12, 12, 20, 28, 36, 44, 52, 60 68,76,84,92,100,108,116,124,132,140,148,156,164,172,180,188,196,204,212,220,228,236}、{-228,-220,-212,-204,-196,-188,-180,-172, One of the following pilot indices: -164, -156, -148, -140, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, -20, -12, -4, 4, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204, 212, 220, 228; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-244:-3, 3:244}.

[0153] (3) If the first RU is a single 996-tone RRU of 80MHz, the number of additional pilots is a fixed integer between 64 and 119. That is, an integer is determined between 64 and 119, and this integer is always used in the subsequent design of the pilot index without being changed. It can be understood that the number of subcarriers of the first RU is 996-tone, and the preset ratio ranges from 1% to 15%. At this time, the number of additional pilots can range from 1 to 149, and 64 to 119 is a numerical range that covers 1 to 149 and is close to the preset ratio of 10%. The pilot index range of the additional pilot is {-500:-3,3:500}, and it can partially include the pilot index of the existing pilot {-468,-400,-334,-266,-220,-152 -86,-18,18,86,152 220,266,334,400,468}.

[0154] For an additional 64 pilots, the specific pilot indices are: {-499,-483,-467,-451,-435,-419,-403,-387,-371,-355,-339,-323,-307,-291,-275,-259,-243,-227,-211,-195,-179,-163,-147,-131,-115,-99,-83,- 67,-51,-35,-19,-3,3,19,35,51,67,83,99,115,131,147,163,179,195,211,227,243,259,275,291,307,323,339,355,371,387,403,419,435,451,467,483,499} or {-500,-484,-468,- 452,-436,-420,-404,-388,-372,-356,-340,-324,-308,-292,-276,-260,-244,-228,-212,-196,-180,-164,-148,-132,-116,-100,-84,-68,-52,-36,-20,-4,4,20,36,52,68,84,10 0,116,132,148,164,180,196,212,228,244,260,276,292,308,324,340,356,372,388,404,420,436,452,468,484,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0155] For an additional 65 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 64, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0156] For the additional pilot number 66, the specific pilot indices are: {-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303,-288,-273,-258,-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78,-63,-48,-33,-18,-3,3,18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243,258,273,288} ,303,318,333,348,363,378,393,408,423,438,453,468,483} or {-498,-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303, -288, -273, -258, -243, -228, -213, -198, -183, -168, -153, -138, -123, -108, -93, -78, -63, -48, -33, -18, 18, 33, 48, 63, 78, 93, 108, 123, 138, 153, 16 8,183,198,213,228,243,258,273,288,303,318,333,348,363,378,393,408,423,438,453,468,483,498} or {-485,-470,-455,-440,-425,-410,-39} 5, -380, -365, -350, -335, -320, -305, -290, -275, -260, -245, -230, -215, -200, -185, -170, -155, -140, -125, -110, -95, -80, -65, -50, -35, -20, -5, 5 ,20,35,50,65,80,95,110,125,140,155,170,185,200,215,230,245,260,275,290,305,320,335,350,365,380,395,410,425,440,455,470,485} or { -500, -485, -470, -455, -440, -425, -410, -395, -380, -365, -350, -335, -320, -305, -290, -275, -260, -245, -230, -215, -200, -185, -170, -155, -140-125, -110, -95, -80, -65, -50, -35, -20, 20, 35, 50, 65, 80, 95, 110, 125, 140, 155, 170, 185, 200, 215, 230, 245, 260, 275, 290, 305, 320, 335, 350, 365, 380, 395, 410, 425, 440, 455, 470, 485, 500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3, 3:500}.

[0157] For an additional 67 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 66, with any number from {-10:1:-3, 3:1:10} added to the index.

[0158] For an additional 68 pilots, the specific pilot indices are: {-498,-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303,-288,-273,-258,-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78} -63,-48,-33,-18,-3,3,18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243,258,273,288,303,318,333,348,363,378,393,408,423,438,453,468,483,498} or {-500,-485,-470, -455, -440, -425, -410, -395, -380, -365, -350, -335, -320, -305, -290, -275, -260, -245, -230, -215, -200, -185, -170, -155, -140, -125, -110, -95, -80, -65, -50, -35, -20, -5, 5, 20, 35, 50, 65, 80 95,110,125,140,155,170,185,200,215,230,245,260,275,290,305,320,335,350,365,380,395,410,425,440,455,470,485,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0159] For an additional 69 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 68, and any number from {-10:1:-3,3:1:10} is added to the index.

[0160] For an additional pilot quantity of 70, the specific pilot index is: {-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,-101,-87,-73,-59,-45,-31,-17,-3,3,17,31,45,59,73,87,101,115,129,143,157,171,185,199,213,227,24} 1,255,269,283,297,311,325,339,353,367,381,395,409,423,437,451,465,479} or {-493,-479,-465,-451,-437,-423,-409,-395,-381,-367,-35 3, -339, -325, -311, -297, -283, -269, -255, -241, -227, -213, -199, -185, -171, -157, -143, -129, -115, -101, -87, -73, -59, -45, -31, -17, 17, 31, 45 59,73,87,101,115,129,143,157,171,185,199,213,227,241,255,269,283,297,311,325,339,353,367,381,395,409,423,437,451,465,479,493} Or {-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-15} 0,-136,-122,-108,-94,-80,-66,-52,-38,-24,-10,10,24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304 {318,332,346,360,374,388,402,416,430,444,458,472,486} or {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318}-304, -290, -276, -262, -248, -234, -220, -206, -192, -178, -164, -150, -136, -122, -108, -94, -80, -66, -52, -38, -24, 24, 38, 52, 66, 80, 94, 108, 122, 136, 150, 164, 178, 19 2,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}; or an index obtained by shifting these pilot indices left and right by a certain number of index bits, with the left and right shift range not exceeding {-500:-3,3:500}.

[0161] For an additional 71 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 70, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0162] For an additional 72 pilots, the specific pilot indices are: {-493,-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,-101,-87,-73} {-59,-45,-31,-17,-3,3,17,31,45,59,73,87,101,115,129,143,157,171,185,199,213,227,241,255,269,283,297,311,325,339,353,367,381,395,409,423,437,451,465,479,493} or {-500,-486,-472,- 458, -444, -430, -416, -402, -388, -374, -360, -346, -332, -318, -304, -290, -276, -262, -248, -234, -220, -206, -192, -178, -164, -150, -136, -122, -108, -94, -80, -66, -52, -38, -24, -10, 10, 24, 38, 52, 66, 80 ,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0163] For an additional 73 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 72, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0164] For the additional 74 pilots, the specific pilot indices are: {-499-493,-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,- 101,-87,-73,-59,-45,-31,-17,-3,3,17,31,45,59,73,87,101,115,129,143,157,171,185,199,213,227,241,255,269,283,297,311,325,339,353,367,381,395,409,423,437,451,465,479,493 499} or {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-150,-136,-122,-108,-94,-80,-66,-52,-38,-24,-10 -4,4} 10,24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0165] For an additional 75 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 74, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0166] For the additional 76 pilots, the specific pilot indices are: {-484,-471,-458,-445,-432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,-68,-55,-42,-29,-16,-3,3,16,29,42,55,68,81,94,107,120,133,146,159,172} 185,198,211,224,237,250,263,276,289,302,315,328,341,354,367,380,393,406,419,432,445,458,471,484} or {-497,-484,-471,-458,-445,- 432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,- 107, -94, -81, -68, -55, -42, -29, -16, 16, 29, 42, 55, 68, 81, 94, 107, 120, 133, 146, 159, 172, 185, 198, 211, 224, 237, 250, 263, 276, 289, 302, 315, 328 ,341,354,367,380,393,406,419,432,445,458,471,484,497} or {-487,-474,-461,-448,-435,-422,-409,-396,-383,-370,-357,-344,-331,-318, -305, -292, -279, -266, -253, -240, -227, -214, -201, -188, -175, -162, -149, -136, -123, -110, -97, -84, -71, -58, -45, -32, -19, -6, 6, 19, 32, 45, 58 71,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474487} or {-500,-487,-474,-461,-448,-435,-422,-409,-396,-383,-370,-357,-344,-331,-318,-305,-292,-279,-266,-253,-240,-227,-214,-201,-188,-175,-162,-149,-136,-123,-110,-97,-84,-71,-58,-45,-32,-19,19,32} ,45,58,71,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474,487,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0167] For an additional 77 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 76, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0168] For an additional 78 pilots, the specific pilot indices are: {-497,-484,-471,-458,-445,-432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,- 68,-55,-42,-29,-16,-3,3,16,29,42,55,68,81,94,107,120,133,146,159,172,185,198,211,224,237,250,263,276,289,302,315,328,341,354,367,380,393,406,419,432,445,458,471,484,497} or {-500,-487,-474, -461,-448,-435,-422,-409,-396,-383,-370,-357,-344,-331,-318,-305,-292,-279,-266,-253,-240,-227,-214,-201,-188,-175,-162,-149,-136,-123,-110,-97,-84,-71,-58,-45,-32,-19,-6,6,19,32,45,58,7 1,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474,487,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0169] For an additional 79 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 78, and any number from {-10:1:-3,3:1:10} is added to the index.

[0170] For an additional pilot number of 80, the specific pilot indices are: {-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-7} 5,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399,411,423,435,447,459,471,483} or {-488,-476,-464,- 452, -440, -428, -416, -404, -392, -380, -368, -356, -344, -332, -320, -308, -296, -284, -272, -260, -248, -236, -224, -212, -200, -188, -176, -164, -152, -140, -128, -116, -104, -92, -80, -68, -56, -44, -32, -20, 20, 32, 44, 56, 68 80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0171] For an additional 81 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 80, and any number from {-10:1:-3,3:1:10} is added to the index.

[0172] For an additional 82 pilots, the specific pilot indices are: {-495,-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,- 75,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399,411,423,435,447,459,471,483,495} or {-488,-476,-464} -452, -440, -428, -416, -404, -392, -380, -368, -356, -344, -332, -320, -308, -296, -284, -272, -260, -248, -236, -224, -212, -200, -188, -176, -164, -152, -140, -128, -116, -104, -92, -80, -68, -56, -44, -32, -20, -8, 8, 20, 32, 44, 56 ,68,80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0173] For an additional 83 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 82, with any number from {-10:1:-3, 3:1:10} added to the index.

[0174] For the additional 84 pilots, the specific pilot indices are: {-495,-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-75} -63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399,411,423,435,447,459,471,483,495} or {-500,-488,-476,- 464,-452,-440,-428,-416,-404,-392,-380,-368,-356,-344,-332,-320,-308,-296,-284,-272,-260,-248,-236,-224,-212,-200,-188,-176,-164,-152,-140,-128,-116,-104,-92,-80,-68,-56,-44,-32,-20,-8,8,20,32,44,56, 68,80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0175] For an additional 85 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 84, with any number from {-10:1:-3,3:1:10} added to the index.

[0176] For the additional 86 pilots, the specific pilot indices are: {-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80} -69,-58,-47,-36,-25,-14,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476} or {-478,-467,-456, -445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148,-137,-126,-115,-104,-93,-82,-71,-60,-49,-38,-27,-16,16,27,38,49,6 0,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0177] For an additional 87 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 86, with any one of the numbers {-10:1:-3, 3:1:10} added to the index.

[0178] For the additional pilot number 88, the specific pilot indices are: {-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80} -69,-58,-47,-36,-25,-14,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476,487} or {-489,-478,-467, -456, -445, -434, -423, -412, -401, -390, -379, -368, -357, -346, -335, -324, -313, -302, -291, -280, -269, -258, -247, -236, -225, -214, -203, -192, -181, -170, -159, -148, -137, -126, -115, -104, -93, -82, -71, -60, -49, -38, -27, -16, 16, 27, 38, 49 60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0179] For an additional pilot number of 89, the specific pilot index is 80MHz 996-tone RU, and the number of interference cancellation pilot subcarriers is 88, with any number from {-10:1:-3,3:1:10} added to the index.

[0180] For an additional pilot number of 90, the specific pilot indices are: {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80} {-69,-58,-47,-36,-25,-14,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476,487,498} or {-500,-489,-478, -467, -456, -445, -434, -423, -412, -401, -390, -379, -368, -357, -346, -335, -324, -313, -302, -291, -280, -269, -258, -247, -236, -225, -214, -203, -192, -181, -170, -159, -148, -137, -126, -115, -104, -93, -82, -71, -60, -49, -38, -27, -16, 16, 27, 38, 49 60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0181] For an additional 91 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 90, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0182] For the additional pilot number 92, the specific pilot indices are: {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-6} 9,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476,487,498} or {-500,-489,-478, -467, -456, -445, -434, -423, -412, -401, -390, -379, -368, -357, -346, -335, -324, -313, -302, -291, -280, -269, -258, -247, -236, -225, -214, -203, -192, -181, -170, -159, -148, -137, -126, -115, -104, -93, -82, -71, -60, -49, -38, -27, -16, -5, 5, 16, 27, 38 49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0183] For an additional 93 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 92, with any one of the numbers {-10:1:-3, 3:1:10} added to the index.

[0184] For the additional pilot number 94, the specific pilot indices are: {-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-8 3,-73,-63,-53,-43,-33,-23,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483} or {-480,-470,-460, -450, -440, -430, -420, -410, -400, -390, -380, -370, -360, -350, -340, -330, -320, -310, -300, -290, -280, -270, -260, -250, -240, -230, -220, -210, -200, -190, -180, -170, -160, -150, -140, -130, -120, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, 20, 30, 40, 50 ,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0185] For an additional 95 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 94, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0186] For an additional 96 pilots, the specific pilot indices are: {-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-7} 3,-63,-53,-43,-33,-23,-1313,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483} or {-490,-480,-470,-4 60, -450, -440, -430, -420, -410, -400, -390, -380, -370, -360, -350, -340, -330, -320, -310, -300, -290, -280, -270, -260, -250, -240, -230, -220, -210, -200, -190, -180, -170, -160, -150, -140, -130, -120, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, 20, 30, 40, 50 ,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0187] For an additional 97 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 96, and any number from {-10:1:-3, 3:1:10} is added to the index.

[0188] For an additional pilot number of 98, the specific pilot indices are: {-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,- 73,-63,-53,-43,-33,-23,-13,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483,493} or {-490,-480,-470, -460, -450, -440, -430, -420, -410, -400, -390, -380, -370, -360, -350, -340, -330, -320, -310, -300, -290, -280, -270, -260, -250, -240, -230, -220, -210, -200, -190, -180, -170, -160, -150, -140, -130, -120, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, -10, 10, 20, 30, 4 0,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0189] For an additional 99 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 98, with any number from {-10:1:-3,3:1:10} added to the index.

[0190] For an additional pilot quantity of 100, the specific pilot indices are: {-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73} -63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483,493} or {-500,-490,-480,-4 70, -460, -450, -440, -430, -420, -410, -400, -390, -380, -370, -360, -350, -340, -330, -320, -310, -300, -290, -280, -270, -260, -250, -240, -230, -220, -210, -200, -190, -180, -170, -160, -150, -140, -130, -120, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, -10, 10, 20, 30, 4 0,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0191] For an additional 101 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 100. Add any number from {-10:1:-3,3:1:10} to the index.

[0192] For an additional pilot quantity of 102, the specific pilot indices are: {-498,-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103} -93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483,493 498} or {-500,-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-2} 70, -260, -250, -240, -230, -220, -210, -200, -190, -180, -170, -160, -150, -140, -130, -120, -110, -100, -90, -80, -70, -60, -50, -40, -30, -20, -10 -5,5,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490,500}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0193] For an additional 103 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 102, and any number from {-10:1:-3,3:1:10} is added to the index.

[0194] For an additional 104 pilots, the specific pilot indices are: {-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84} -75, -66, -57, -48, -39, -30, -21, 21, 30, 39, 48, 57, 66, 75, 84, 93, 102, 111, 120, 129, 138, 147, 156, 165, 174, 183, 192, 201, 210, 219, 228, 237, 24 6,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,426,435,444,453,462,471,480} or {-482,-473,-464, -455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140,-131,-122,-113,-104,-95,-86,-77,-68,-59,-50,-41,-32,-23,23,32,41 ,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0195] For an additional 105 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 104, and any number from {-10:1:-3,3:1:10} is added to the index.

[0196] For an additional 106 pilots, the specific pilot indices are: {-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84} -75, -66, -57, -48, -39, -30, -21, 21, 30, 39, 48, 57, 66, 75, 84, 93, 102, 111, 120, 129, 138, 147, 156, 165, 174, 183, 192, 201, 210, 219, 228, 237, 246, 255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,426,435,444,453,462,471,480,489} or {-491,-482,-473, -464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248 -239, -230, -221, -212, -203, -194, -185, -176, -167, -158, -149, -140, -131, -122, -113, -104, -95, -86, -77, -68, -59, -50, -41, -32, -23, 23, 32, 41 ,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491}; or an index obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the left and right shift range not exceeding {-500:-3,3:500}.

[0197] For an additional 107 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 106, and any number from {-10:1:-3,3:1:10} is added to the index.

[0198] For an additional pilot number of 108, the specific pilot indices are: {-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-1 02,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,426,435,444,453,462,47 1,480,489} or {-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140,-131,-122,-113,-104,-95,-86} ,-77,-68,-59,-50,-41,-32,-23,-14,14,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491};Alternatively, the index can be obtained by shifting these pilot indices left and right by a certain number of index bits, with the shift range not exceeding {-500:-3, 3:500}.

[0199] For an additional 109 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 108, and any number from {-10:1:-3,3:1:10} is added to the index.

[0200] For an additional pilot number of 110, the specific pilot indices are: {-498,-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,- 102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,426,435,444,453,462,471,48 0,489,498} or {-500,-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140,-131,-122,-113,-104,-95,-86} ,-77,-68,-59,-50,-41,-32,-23,-14,14,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491,500};Alternatively, the index can be obtained by shifting these pilot indices left and right by a certain number of index bits, with the shift range not exceeding {-500:-3, 3:500}.

[0201] For an additional pilot number of 111, the specific pilot index is 80MHz 996-tone RU, and the number of interference cancellation pilot subcarriers is 110. Add any number from {-10:1:-3,3:1:10} to the index.

[0202] For an additional pilot number of 112, the specific pilot indices are: {-498,-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-01,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102} -93, -84, -75, -66, -57, -48, -39, -30, -21, -12, -3, 3, 12, 21, 30, 39, 48, 57, 66, 75, 84, 93, 102, 111, 120, 129, 138, 147, 156, 165, 174, 183, 192, 201 ,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,426,435,444,453,462,471,48 0,489,498} or {-500,-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,- 302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140,-131,-122,-113,-104,-95,-86,- 77,-68,-59,-50,-41,-32,-23,-14,-5,5,14,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,2 30,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491,500};Alternatively, the index can be obtained by shifting these pilot indices left and right by a certain number of index bits, with the shift range not exceeding {-500:-3, 3:500}.

[0203] For an additional pilot number of 113, the specific pilot index is 80MHz 996-tone RU, and the number of interference cancellation pilot subcarriers is 112. Add any number from {-10:1:-3,3:1:10} to the index.

[0204] For an additional pilot number of 114, the specific pilot indices are: {-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-11} 5, -107, -99, -91, -83, -75, -67, -59, -51, -43, -35, -27, 27, 35, 43, 51, 59, 67, 75, 83, 91, 99, 107, 115, 123, 131, 139, 147, 155, 163, 171, 179, 187, 195, 203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339,347,355,363,371,379,387,395,403,411,419,427,435,443,4 51,459,467,475} or {-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396,-388,-380,-372,-364,-356,-348,-340,-332,-324,-316,-30} 8, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, -204, -196, -188, -180, -172, -164, -156, -148, -140, -132, -124, -116, -10 8, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204 ,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460, 468, 476}; or an index obtained by shifting these pilot indices left and right by a certain number of index bits, with the left and right shift range not exceeding {-500:-3, 3:500}.

[0205] For an additional 115 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 114. Add any number from {-10:1:-3,3:1:10} to the index.

[0206] For an additional pilot number of 116, the specific pilot indices are: {-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-11} 5,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,171,179,1 87,195,203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339,347,355,363,371,379,387,395,403,411,419,427,43 5,443,451,459,467,475} or {-484,-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396,-388,-380,-372,-364,-356,-348,-340,-332,- 324, -316, -308, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, -204, -196, -188, -180, -172, -164, -156, -148, -140, -132, - 124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180 ,188,196,204,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476,484}; or an index obtained by shifting these pilot indices left and right by a certain number of index bits, with the left and right shift range not exceeding {-500:-3,3:500}.

[0207] For an additional 117 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 116, and any number from {-10:1:-3,3:1:10} is added to the index.

[0208] For an additional pilot quantity of 118, the specific pilot indices are: {-483,-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-12} 3, -115, -107, -99, -91, -83, -75, -67, -59, -51, -43, -35, -27, -19, 19, 27, 35, 43, 51, 59, 67, 75, 83, 91, 99, 107, 115, 123, 131, 139, 147, 155, 163, 171, 179,187,195,203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339,347,355,363,371,379,387,395,403,411,419,4 27,435,443,451,459,467,475,483} or {-484,-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396,-388,-380,-372,-364,-356,-348,-3 40, -332, -324, -316, -308, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, -204, -196, -188, -180, -172, -164, -156, -148, -1 40, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, -20, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148 ,156,164,172,180,188,196,204,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476,484}; or an index obtained by shifting these pilot indices left and right by a certain number of index bits, with the left and right shift range not exceeding {-500:-3,3:500}.

[0209] For an additional 119 pilots, the specific pilot index is 80MHz 996-tone RU. The number of interference cancellation pilot subcarriers is 118, and any number from {-10:1:-3,3:1:10} is added to the index.

[0210] Second, the application to OFDMA RRU (Orthogonal Frequency Division Multiple Access Regular Resource Unit):

[0211] 1. For a first RU of 20MHz, the pilot index range of the additional pilots when the first RU contains different numbers of subcarriers is shown in Table 1 below:

[0212] Table 1

[0213]

[0214] 1.1 If the first RU is a 20MHz 26-tone RRU, the number of additional pilots is a fixed integer between 2 and 3. That is, an integer is determined between 2 and 3, and this integer is always used in the subsequent design of the pilot index without being changed. It can be understood that the number of subcarriers in the first RU is 26-tone, and the preset ratio ranges from 1% to 15%. At this time, the number of additional pilots can be between 1 and 3, while 2 to 3 is a numerical range that covers 1 to 3 and is close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU9 corresponding to the 26-tone RU in Table 1, and may include all or part of the index of the existing pilot: {-116,-102},{-90,-76},{-62,-48},{-36,-22},{-10,10},{22,36},{48,62},{76,90},{102,116}.

[0215] For an additional pilot quantity of 2, the specific pilot index is:

[0216] 26-tone RU 1 {-115,-103} 26-tone RU 2 {-89,-77} 26-tone RU 3 {-62,-50} 26-tone RU 4 {-36,-24} 26-tone RU 5 {-10,10} 26-tone RU 6 {24,36} 26-tone RU 7 {50,62} 26-tone RU 8 {77,89} 26-tone RU 9 {103,115}

[0217] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0218] For an additional pilot quantity of 3, the specific pilot index is:

[0219] 26-tone RU 1 {-116,-108,-100} 26-tone RU 2 {-90,-82,-74} 26-tone RU 3 {-63,-55,-47} 26-tone RU 4 {-37,-29,-21} 26-tone RU 5 {-14,-6,14or-14,6,14} 26-tone RU 6 {21,29,37} 26-tone RU 7 {47,55,63} 26-tone RU 8 {74,82,90} 26-tone RU 9 {100,108,116}

[0220] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0221] 1.2 If the first RU is a 20MHz 52-tone RRU, the number of additional pilots is a fixed integer between 4 and 6. That is, an integer is determined between 4 and 6, and this integer is always used in subsequent pilot index design without change. It is understood that the number of subcarriers in the first RU is 52-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 3 to 7, while 4 to 6 is a numerical range covering 3 to 7 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU4 corresponding to the 52-tone RU in Table 1, and can include all or part of the existing pilot indices: {-116, -102, -90, -76}, {-62, -48, -36, -22}, {22, 36, 48, 62}, {76, 90, 102, 116}.

[0222] For an additional pilot quantity of 4, the specific pilot indices are:

[0223] 52-tone RU 1 {-115,-102,-89,-76} 52-tone RU 2 {-62,-49,-36,-23} 52-tone RU 3 {23,36,49,62} 52-tone RU 4 {76,89,102,115}

[0224] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0225] For an additional pilot number of 5, the specific pilot index is:

[0226]

[0227]

[0228] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0229] For an additional pilot number of 6, the specific pilot index is:

[0230] 52-tone RU 1 {-118,-109,-100,-91,-82,-73} 52-tone RU 2 {-65,-56,-47,-38,-29,-20} 52-tone RU 3 {20,29,38,47,56,65} 52-tone RU 4 {73,82,91,100,109,118}

[0231] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0232] 1.3 If the first RU is a 20MHz 106-tone RRU, the number of additional pilots is a fixed integer between 4 and 12. That is, an integer is determined within the range of 4 to 12, and this integer is always used in subsequent pilot index design without change. It is understandable that the number of subcarriers in the first RU is 106-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 15, while 4 to 12 is a numerical range covering 1 to 15 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU2 corresponding to the 106-tone RU in Table 1, and can include all or part of the existing pilot indices: {-116, -90, -48, -22}, {22, 48, 90, 116}.

[0233] For an additional pilot quantity of 4, the specific pilot indices are:

[0234] 106-tone RU 1 {-109,-83,-57,-31} 106-tone RU 2 {31,57,83,109}

[0235] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0236] For an additional pilot quantity of 5, the specific pilot index is:

[0237] 106-tone RU 1 {-112,-91,-70,-49,-28} 106-tone RU 2 {28,49,70,91,112}

[0238] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0239] For an additional pilot quantity of 6, the specific pilot indices are:

[0240] 106-tone RU 1 {-114,-96,-7,-60,-42,-24} 106-tone RU 2 {24,42,60,78,96,114}

[0241] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0242] For an additional pilot number of 7, the specific pilot index is:

[0243] 106-tone RU 1 {-114,-99,-84,-69,-54,-39,-24} 106-tone RU 2 {24,39,54,69,84,99,114}

[0244] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0245] For an additional pilot quantity of 8, the specific pilot indices are as follows:

[0246] 106-tone RU 1 {-115,-102,-89,-76,-63,-50,-37,-24} 106-tone RU 2 {24,37,50,63,76,89,102,115}

[0247] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0248] For an additional pilot number of 9, the specific pilot indices are:

[0249] 106-tone RU 1 {-118,-106,-94,-82,-70,-58,-46,-34,-22} 106-tone RU 2 {22,34,46,58,70,82,94,106,118}

[0250] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0251] For an additional pilot quantity of 10, the specific pilot index is:

[0252]

[0253] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0254] For an additional pilot quantity of 11, the specific pilot index is:

[0255]

[0256] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0257] For an additional pilot quantity of 12, the specific pilot indices are as follows:

[0258]

[0259]

[0260] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0261] 1.4 If the first RU is a 20MHz 242-tone RRU, the number of additional pilots is a fixed positive integer between 12 and 29. That is, an integer is determined within the range of 12 to 29, and this integer is always used in subsequent pilot index design without change. It is understandable that the number of subcarriers in the first RU is 242-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 36, and 12 to 29 is a numerical range covering 1 to 36 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 corresponding to the 106-tone RU in Table 1, i.e., {-122:-2,2:122}, and can include all or part of the existing pilot indexes: {-116, -90, -48, -22, 22, 48, 90, 116}. Its specific pilot index is the same as the corresponding index design of the 12 to 29 additional pilots of a single 242-tone RU in the aforementioned non-OFDMA RRU at 20MHz.

[0262] 2. For a first RU of 40MHz, the pilot index range of the additional pilots when the first RU contains different numbers of subcarriers is shown in Table 2 below:

[0263] Table 2

[0264]

[0265] 2.1 If the first RU is a 40MHz 26-tone RRU, the number of additional pilots is a fixed integer between 2 and 3. That is, an integer is determined between 2 and 3, and this integer is always used in the subsequent design of the pilot index without being changed. It can be understood that the number of subcarriers in the first RU is 26-tone, and the preset ratio ranges from 1% to 15%. At this time, the number of additional pilots can be between 1 and 3, while 2 to 3 is a numerical range that covers 1 to 3 and is close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU18 corresponding to the 26-tone RU in Table 2, and may include all or part of the existing pilot indexes: {-238,-224},{-212,-198},{-184,-170}{-158,-144},{-130,-116},{-104,-90},{-78,-64},{-50,-36},{-24,-10},{10,24},{36,50},{64,78},{90,104},{116,130},{144,158},{170,184},{198,212},{224,238}.

[0266] For an additional pilot quantity of 2, the specific pilot index is:

[0267] 26-tone RU 1 {-237,-225} 26-tone RU 2 {-211,-199} 26-tone RU 3 {-183,-171} 26-tone RU 4 {-157,-145} 26-tone RU 5 {-130,-118} 26-tone RU 6 {-103,-91} 26-tone RU 7 {-77,-65} 26-tone RU 8 {-49,-37} 26-tone RU 9 {-23,-11} 26-tone RU 10 {11,23} 26-tone RU 11 {37,49} 26-tone RU 12 {65,77} 26-tone RU 13 {91,103} 26-tone RU 14 {118,130} 26-tone RU 15 {145,157} 26-tone RU 16 {171,183} 26-tone RU 17 {199,211} 26-tone RU 18 {225,237}

[0268] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0269] For an additional pilot quantity of 3, the specific pilot index is:

[0270]

[0271]

[0272] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0273] 2.2 If the first RU is a 40MHz 52-tone RRU, the number of additional pilots is a fixed integer between 4 and 6. That is, an integer is determined between 4 and 6, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 52-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 3 to 7, while 4 to 6 is a numerical range covering 3 to 7 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU8 corresponding to the 52-tone RU in Table 2, and may include all or part of the index of the existing pilot: {-238,-224,-212,-198},{-184,-170,-158,-144},{-104,-90,-78,-64},{-50,-36,-24,-10},{10,24,36,50},{64,78,90,104},{144,158,170,184},{198,212,224,238}.

[0274] For an additional pilot quantity of 4, the specific pilot indices are:

[0275]

[0276]

[0277] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0278] For an additional pilot number of 5, the specific pilot index is:

[0279] 52-tone RU 1 {-237,-227,-217,-207,-197} 52-tone RU 2 {-183,-173,-163,-153,-143} 52-tone RU 3 {-103,-93,-83,-73,-63} 52-tone RU 4 {-49,-39,-29,-19,-9} 52-tone RU 5 {9,19,29,39,49} 52-tone RU 6 {63,73,83,93,103} 52-tone RU 7 {143,153,163,173,183} 52-tone RU 8 {197,207,217,227,237}

[0280] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0281] For an additional pilot number of 6, the specific pilot index is:

[0282] 52-tone RU 1 {-240,-231,-222,-213,-204,-195} 52-tone RU 2 {-186,-177,-168,-159,-150,-141} 52-tone RU 3 {-106,-97,-88,-79,-70,-61} 52-tone RU 4 {-52,-43,-34,-25,-16,-7} 52-tone RU 5 {7,16,25,34,43,52} 52-tone RU 6 {61,70,79,88,97,106} 52-tone RU 7 {141,150,159,168,177,186} 52-tone RU 8 {195,204,213,222,231,240}

[0283] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0284] 2.3 If the first RU is a 40MHz 106-tone RRU, the number of additional pilots is a fixed integer between 4 and 12. That is, an integer is determined within the range of 4 to 12, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 106-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 15, and 4 to 12 is a numerical range covering 1 to 15 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU4 corresponding to 106-tone RU in Table 2, and may include all or part of the index of the existing pilot: {-238,-212,-170,-144},{-104,-78,-36,-10},{10,36,78,104},{144,170,212,238}.

[0285] For an additional pilot quantity of 4, the specific pilot indices are:

[0286] 106-tone RU 1 {-230,-204，-178，-152} 106-tone RU 2 {-96，-70，-44，-18} 106-tone RU 3 {18，44，70，96} 106-tone RU 4 {152，178，204，230}

[0287] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0288] For an additional pilot quantity of 5, the specific pilot index is:

[0289] 106-tone RU 1 {-233,-212,-191,-170,-149} 106-tone RU 2 {-99,-78,-57,-36,-15} 106-tone RU 3 {15,36,57,78,99} 106-tone RU 4 {149,170,191,212,233}

[0290] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0291] For an additional pilot quantity of 6, the specific pilot indices are:

[0292] 106-tone RU 1 {-236,-218,-200,-182,-164,-146} 106-tone RU 2 {-102,-84,-66,-48,-30,-12} 106-tone RU 3 {12,30,48,66,84,102} 106-tone RU 4 {146,164,182,200,218,236}

[0293] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0294] For an additional pilot number of 7, the specific pilot index is:

[0295]

[0296] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0297] For an additional pilot quantity of 8, the specific pilot indices are as follows:

[0298]

[0299] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0300] For an additional pilot number of 9, the specific pilot indices are:

[0301]

[0302] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0303] For an additional pilot quantity of 10, the specific pilot index is:

[0304]

[0305] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0306] For an additional pilot quantity of 11, the specific pilot index is:

[0307]

[0308] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0309] For an additional pilot quantity of 12, the specific pilot indices are as follows:

[0310]

[0311] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0312] 2.4 If the first RU is a 40MHz 242-tone RRU, the number of additional pilots is a fixed positive integer between 8 and 29. That is, an integer is determined within the range of 8 to 29, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 242-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 36, and 8 to 29 is a numerical range covering 1 to 36 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU2 corresponding to the 106-tone RU in Table 2, and may include all or part of the index of the existing pilot: {-238,-212,-170,-144,-104,-78,-36,-10},{10,36,78,104,144,170,212,238}.

[0313] For an additional pilot quantity of 8, the specific pilot indices are as follows:

[0314]

[0315] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0316] For an additional pilot number of 9, the specific pilot indices are:

[0317] 242-tone RU 1 {-231,-204,-177,-150,-123,-96,-69,-42,-15} 242-tone RU 2 {15,42,69,96,123,150,177,204,231}

[0318] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0319] For an additional pilot quantity of 10, the specific pilot index is:

[0320]

[0321] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0322] For an additional pilot quantity of 11, the specific pilot index is:

[0323]

[0324] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0325] For an additional pilot quantity of 12, the specific pilot indices are as follows:

[0326]

[0327] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0328] For an additional pilot quantity of 13, the specific pilot indices are as follows:

[0329]

[0330] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0331] For an additional pilot quantity of 14, the specific pilot index is:

[0332]

[0333] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0334] For an additional pilot quantity of 15, the specific pilot index is:

[0335]

[0336] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0337] For an additional 16 pilots, the specific pilot indices are as follows:

[0338]

[0339] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0340] For an additional pilot quantity of 17, the specific pilot indices are as follows:

[0341]

[0342] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0343] For an additional pilot quantity of 18, the specific pilot index is:

[0344]

[0345] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0346] For an additional pilot quantity of 19, the specific pilot index is:

[0347]

[0348] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0349] For an additional 20 pilots, the specific pilot indices are as follows:

[0350]

[0351] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0352] For an additional pilot number of 21, the specific pilot indices are as follows:

[0353]

[0354]

[0355] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0356] For an additional pilot number of 22, the specific pilot indices are as follows:

[0357]

[0358] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0359] For an additional pilot number of 23, the specific pilot indices are as follows:

[0360]

[0361] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0362] For an additional 24 pilots, the specific pilot indices are as follows:

[0363]

[0364] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0365] For an additional pilot quantity of 25, the specific pilot indices are as follows:

[0366]

[0367] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0368] For an additional 26 pilots, the specific pilot indices are as follows:

[0369]

[0370] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0371] For an additional pilot number of 27, the specific pilot indices are as follows:

[0372]

[0373] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0374] For an additional pilot number of 28, the specific pilot indices are as follows:

[0375]

[0376] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0377] For an additional pilot number of 29, the specific pilot indices are as follows:

[0378]

[0379] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0380] 2.5 If the first RU is a 40MHz 484-tone RRU, the number of additional pilots is a fixed positive integer between 22 and 58. That is, an integer is determined between 22 and 58, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 484-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 72, and 22 to 58 is a numerical range covering 1 to 72 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the same as the pilot index range of RU1 corresponding to the 484-tone RU in Table 2, i.e., {-244:-3,3:244}, and may include all or part of the existing pilot index: {-238,-212,-170,-144,-104,-78,-36,-10,10,36,78,104,144,170,212,238}. Its specific pilot index is the same as the corresponding index design for the additional pilot quantity of 22 to 58 for a single 484-tone RU at 40MHz in the aforementioned non-OFDMARRU.

[0381] 3. For the first RU with an 80MHz subcarrier, the pilot index range of the additional pilots when the first RU contains different numbers of subcarriers is shown in Table 3 below:

[0382] Table 3

[0383]

[0384]

[0385] 3.1 If the first RU is an 80MHz 26-tone RRU, the number of additional pilots should be a fixed even number between 2 and 3. That is, an integer between 2 and 3 should be determined and used consistently in subsequent pilot index design without change. It is understandable that the number of subcarriers in the first RU is 26-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 3, while 2 to 3 is a numerical range covering 1 to 3 and close to the preset ratio of 10%. The pilot index range for this additional pilot is shown in Table 3 for 26-tone RRUs. The pilot index range corresponding to RU1 to RU37, and may include all or part of the existing pilot indices: {-494,-480},{-468,-454},{-440,-426},{-414,-400},{-386,-372},{-360,-346},{-334,-320},{-306,-292},{-280,-266},{-252,-238},{-226,-212},{-198,-184},{-172,-158},{-144,-130},{-118,-1 04},{-92,-78},{-64,-50},{-38,-24},{-10,10},{24,38},{50,64},{78,92},{104,118},{130,144},{158,172},{184,198},{212,226},{238,252},{266,280},{292,306},{320,334},{346,360},{372,386},{400,414},{426,440},{454,468},{480,494}.

[0386] For an additional pilot quantity of 2, the specific pilot index is:

[0387]

[0388]

[0389] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0390] For an additional pilot quantity of 3, the specific pilot index is:

[0391]

[0392]

[0393] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0394] 3.2 If the first RU is an 80MHz 52-tone RRU, the number of additional pilots is a fixed positive integer between 4 and 6. That is, an integer is determined within the range of 4 to 6, and this integer is always used in subsequent pilot index design without change. It is understandable that the number of subcarriers in the first RU is 52-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 3 to 7, while 4 to 6 is a numerical range covering 3 to 7 and close to the preset ratio of 10%. The pilot index range of this additional pilot is shown in Table 3 for 52-tone RRUs. The pilot index range corresponding to RU1 to RU16, and may include all or part of the existing pilot indices: {-494,-480,-468,-454},{-440,-426,-414,-400},{-360,-346,-334,-320},{-306,-292,-280,-266},{-252,-238,-226,-212},{-198,-184,-172,-158},{- 118,-104,-92,-78},{-64,-50,-38,-24},{24,38,50,64},{78,92,104,118},{158,172,184,198},{212,226,238,252},{266,280,292,306},{320,334,346,360},{400,414,426,440},{454,468,480,494}.

[0395] For an additional pilot quantity of 4, the specific pilot indices are:

[0396]

[0397]

[0398] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0399] For an additional pilot quantity of 5, the specific pilot index is:

[0400] 52-tone RU 1 {-493,-483,-473,-463,-453} 52-tone RU 2 {-439,-429,-419,-409,-399} 52-tone RU 3 {-359,-349,-339,-329,-319} 52-tone RU 4 {-305,-295,-285,-275,-265} 52-tone RU 5 {-251,-241,-231,-221,-211} 52-tone RU 6 {-197,-187,-177,-167,-157} 52-tone RU 7 {-117,-107,-97,-87,-77} 52-tone RU 8 {-63,-53,-43,-33,-23} 52-tone RU 9 {23,33,43,53,63} 52-tone RU 10 {77,87,97,107,117} 52-tone RU 11 {157,167,177,187,197} 52-tone RU 12 {211,221,231,241,251} 52-tone RU 13 {265,275,285,295,305} 52-tone RU 14 {319,329,339,349,359} 52-tone RU 15 {399,409,419,429,439} 52-tone RU 16 {453,463,473,483,493}

[0401] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0402] For an additional pilot quantity of 6, the specific pilot indices are:

[0403] 52-tone RU 1 {-496,-487,-478,-469,-460,-451} 52-tone RU 2 {-442,-433,-424,-415,-406,-397} 52-tone RU 3 {-362,-353,-344,-335,-326,-317} 52-tone RU 4 {-308,-299,-290,-281,-272,-263} 52-tone RU 5 {-254,-245,-236,-227,-218,-209} 52-tone RU 6 {-200,-191,-182,-173,-164,-155} 52-tone RU 7 {-120,-111,-102,-93,-84,-75} 52-tone RU 8 {-66,-57,-48,-39,-30,-21} 52-tone RU 9 {21,30,39,48,57,66} 52-tone RU 10 {75,84,93,102,111,120} 52-tone RU 11 {155,164,173,182,191,200} 52-tone RU 12 {209,218,227,236,245,254} 52-tone RU 13 {263,272,281,290,299,308} 52-tone RU 14 {317,326,335,344,353,362} 52-tone RU 15 {397,406,415,424,433,442} 52-tone RU 16 {451,460,469,478,487,496}

[0404] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0405] 3.3 If the first RU is an 80MHz 106-tone RRU, the number of additional pilots is a fixed positive integer between 4 and 12. That is, an integer is determined between 4 and 12, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 106-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 15, and 4 to 12 is a numerical range covering 1 to 15 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU8 corresponding to the 106-tone RU in Table 3, and may include all or part of the index of the existing pilot: {-494,-468,-426,-400},{-360,-334,-292,-266},{-252,-226,-184,-158},{-118,-92,-50,-24},{24,50,92,118},{158,184,226,252},{266,292,334,360},{400,426,468,494}.

[0406] For an additional pilot quantity of 4, the specific pilot indices are:

[0407]

[0408]

[0409] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0410] For an additional pilot quantity of 5, the specific pilot index is:

[0411] 106-tone RU 1 {-489,-468,-447,-426,-405} 106-tone RU 2 {-355,-334,-313,-292,-271} 106-tone RU 3 {-247,-226,-205,-184,-163} 106-tone RU 4 {-113,-92,-71,-50,-29} 106-tone RU 5 {29,50,71,92,113} 106-tone RU 6 {163,184,205,226,247} 106-tone RU 7 {271,292,313,334,355} 106-tone RU 8 {405,426,447,468,489}

[0412] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0413] For an additional pilot quantity of 6, the specific pilot indices are:

[0414] 106-tone RU 1 {-491,-473,-455,-437,-419,-401} 106-tone RU 2 {-357,-339,-321,-303,-285,-267} 106-tone RU 3 {-249,-231,-213,-195,-177,-159} 106-tone RU 4 {-115,-97,-79,-61,-43,-25} 106-tone RU 5 {25,43,61,79,97,115} 106-tone RU 6 {159,177,195,213,231,249} 106-tone RU 7 {267,285,303,321,339,357} 106-tone RU 8 {401,419,437,455,473,491}

[0415] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0416] For an additional pilot number of 7, the specific pilot index is:

[0417]

[0418]

[0419] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0420] For an additional pilot quantity of 8, the specific pilot indices are as follows:

[0421] 106-tone RU 1 {-492,-479,-466,-453,-440,-427,-414,-401} 106-tone RU 2 {-358,-345,-332,-319,-306,-293,-280,-267} 106-tone RU 3 {-250,-237,-224,-211,-198,-185,-172,-159} 106-tone RU 4 {-116,-103,-90,-77,-64,-51,-38,-25} 106-tone RU 5 {25,38,51,64,77,90,103,116} 106-tone RU 6 {159,172,185,198,211,224,237,250} 106-tone RU 7 {267,280,293,306,319,332,345,358} 106-tone RU 8 {401,414,427,440,453,466,479,492}

[0422] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0423] For an additional pilot number of 9, the specific pilot indices are:

[0424]

[0425]

[0426] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0427] For an additional pilot quantity of 10, the specific pilot index is:

[0428] 106-tone RU 1 {-496,-485,-474,-463,-452,-441,-430,-419,-408,-397} 106-tone RU 2 {-362,-351,-340,-329,-318,-307,-296,-285,-274,-263} 106-tone RU 3 {-254,-243,-232,-221,-210,-199,-188,-177,-166,-155} 106-tone RU 4 {-120,-109,-98,-87,-76,-65,-54,-43,-32,-21} 106-tone RU 5 {21,32,43,54,65,76,87,98,109,120} 106-tone RU 6 {155,166,177,188,199,210,221,232,243,254} 106-tone RU 7 {263,274,285,296,307,318,329,340,351,362} 106-tone RU 8 {397,408,419,430,441,452,463,474,485,496}

[0429] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0430] For an additional pilot quantity of 11, the specific pilot index is:

[0431]

[0432] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0433] For an additional pilot quantity of 12, the specific pilot indices are as follows:

[0434]

[0435] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0436] 3.4 If the first RU is an 80MHz 242-tone RRU, the number of additional pilots is a fixed positive integer between 8 and 29. That is, an integer is determined within the range of 8 to 29, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 242-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 36, and 8 to 29 is a numerical range covering 1 to 36 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU4 corresponding to the 106-tone RU in Table 3, and may include all or part of the existing pilot indexes: {-494,-468,-426,-400,-360,-334,-292,-266},{-252,-226,-184,-158,-118,-92,-50,-24},{24,50,92,118,158,184,226,252},{266,292,334,360,400,426,468,494}.

[0437] For an additional pilot quantity of 8, the specific pilot indices are as follows:

[0438] 242-tone RU 1 {-484,-454,-424,-394,-364,-334,-304,-274} 242-tone RU 2 {-242,-212,-182,-152,-122,-92,-62,-32} 242-tone RU 3 {32,62,92,122,152,182,212,242} 242-tone RU 4 {274,304,334,364,394,424,454,484}

[0439] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0440] For an additional pilot number of 9, the specific pilot indices are:

[0441] 242-tone RU 1 {-488,-461,-434,-407,-380,-353,-326,-299,-272} 242-tone RU 2 {-246,-219,-192,-165,-138,-111,-84,-57,-30} 242-tone RU 3 {30,57,84,111,138,165,192,219,246} 242-tone RU 4 {272,299,326,353,380,407,434,461,488}

[0442] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0443] For an additional pilot number of 10, the specific pilot index is:

[0444] 242-tone RU 1 {-488,-464,-440,-416,-392,-368,-344,-320,-296,-272} 242-tone RU 2 {-246,-222,-198,-174,-150,-126,-102,-78,-54,-30} 242-tone RU 3 {30,54,78,102,126,150,174,198,222,246} 242-tone RU 4 {272,296,320,344,368,392,416,440,464,488}

[0445] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0446] For an additional pilot number of 11, the specific pilot index is:

[0447]

[0448] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0449] For an additional pilot number of 12, the specific pilot indices are as follows:

[0450]

[0451] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0452] For an additional pilot number of 13, the specific pilot index is:

[0453]

[0454] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0455] For an additional pilot number of 14, the specific pilot index is:

[0456]

[0457] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0458] For an additional pilot number of 15, the specific pilot index is:

[0459]

[0460] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0461] For an additional pilot number of 16, the specific pilot index is:

[0462]

[0463]

[0464] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0465] For an additional pilot number of 17, the specific pilot index is:

[0466]

[0467] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0468] For an additional pilot number of 18, the specific pilot index is:

[0469]

[0470] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0471] For an additional pilot number of 19, the specific pilot index is:

[0472]

[0473] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0474] For an additional pilot number of 20, the specific pilot index is:

[0475]

[0476]

[0477] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0478] For an additional pilot number of 21, the specific pilot index is:

[0479]

[0480] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0481] For an additional pilot number of 22, the specific pilot indices are as follows:

[0482]

[0483] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0484] For an additional pilot number of 23, the specific pilot indices are as follows:

[0485]

[0486]

[0487] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0488] For an additional pilot number of 24, the specific pilot index is as follows:

[0489]

[0490] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0491] For an additional pilot number of 25, the specific pilot index is as follows:

[0492]

[0493] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0494] For an additional pilot number of 26, the specific pilot indices are as follows:

[0495]

[0496]

[0497] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0498] For an additional pilot number of 27, the specific pilot index is:

[0499]

[0500] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0501] For an additional pilot number of 28, the specific pilot index is:

[0502]

[0503] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0504] For an additional pilot number of 29, the specific pilot index is:

[0505]

[0506]

[0507] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0508] 3.5 If the first RU is an 80MHz 484-tone RRU, for an 80MHz 484-tone RRU, the number of additional pilots is a fixed positive integer between 32 and 58. That is, an integer is determined between 32 and 58, and this integer is always used in the subsequent design of the pilot index without being changed. It is understandable that the number of subcarriers in the first RU is 484-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 72, and 32 to 58 is a numerical range covering 1 to 72 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the pilot index range of RU1 to RU2 corresponding to 484-tone RU in Table 3; and may include all or part of the index of the existing pilot: {-494,-468,-426,-400,-360,-334,-292,-266,-252,-226,-184,-158,-118,-92,-50,-24},{24,50,92,118,158,184,226,252,266,292,334,360,400,426,468,494}.

[0509] For an additional pilot number of 32, the specific pilot indices are as follows:

[0510]

[0511] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0512] For an additional pilot number of 33, the specific pilot index is:

[0513]

[0514]

[0515] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0516] For an additional pilot number of 34, the specific pilot index is as follows:

[0517]

[0518] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0519] For an additional pilot number of 35, the specific pilot index is:

[0520]

[0521] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0522] For an additional pilot number of 36, the specific pilot index is:

[0523]

[0524]

[0525] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0526] For an additional pilot number of 37, the specific pilot index is:

[0527]

[0528] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0529] For an additional pilot number of 38, the specific pilot index is as follows:

[0530]

[0531] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0532] For an additional pilot number of 39, the specific pilot index is:

[0533]

[0534]

[0535] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0536] For an additional pilot number of 40, the specific pilot index is:

[0537]

[0538] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0539] For an additional pilot number of 41, the specific pilot indices are as follows:

[0540]

[0541] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0542] For an additional pilot number of 42, the specific pilot indices are as follows:

[0543]

[0544]

[0545] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0546] For an additional pilot number of 43, the specific pilot indices are as follows:

[0547]

[0548] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0549] For an additional pilot number of 44, the specific pilot indices are as follows:

[0550]

[0551] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0552] For an additional pilot number of 45, the specific pilot index is as follows:

[0553]

[0554]

[0555] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0556] For an additional pilot number of 46, the specific pilot indices are as follows:

[0557]

[0558] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0559] For an additional pilot number of 47, the specific pilot index is:

[0560]

[0561] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0562] For an additional pilot number of 48, the specific pilot index is as follows:

[0563]

[0564]

[0565] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0566] For an additional pilot number of 49, the specific pilot index is:

[0567]

[0568] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0569] For an additional pilot number of 50, the specific pilot index is:

[0570]

[0571] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0572] For an additional pilot number of 51, the specific pilot index is:

[0573]

[0574] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0575] For an additional pilot number of 52, the specific pilot index is as follows:

[0576]

[0577] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0578] For an additional pilot number of 53, the specific pilot index is:

[0579]

[0580]

[0581] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0582] For an additional pilot number of 54, the specific pilot index is as follows:

[0583]

[0584] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0585] For an additional pilot number of 55, the specific pilot index is:

[0586]

[0587] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0588] For an additional pilot number of 56, the specific pilot index is:

[0589]

[0590] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0591] For an additional pilot number of 57, the specific pilot index is:

[0592]

[0593] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0594] For an additional pilot number of 58, the specific pilot index is:

[0595]

[0596]

[0597] Alternatively, it can be obtained by shifting a certain number of index bits to the left and right based on these pilot indices, with the shift range not exceeding the pilot index range of each RU.

[0598] 3.6 If the first RU is an 80MHz 996-tone RRU, the number of additional pilots is a fixed positive integer between 64 and 119. That is, an integer is determined within the range of 64 to 119, and this integer is always used in subsequent pilot index design without being changed. It is understandable that the number of subcarriers in the first RU is 996-tone, and the preset ratio ranges from 1% to 15%. In this case, the number of additional pilots can range from 1 to 149, and 64 to 119 is a numerical range covering 1 to 149 and close to the preset ratio of 10%. The pilot index range of this additional pilot is the same as the pilot index range of RU1 corresponding to the 996-tone RU in Table 3, i.e., {-500:-3,3:500}, and may include all or part of the existing pilot index: {-468,-400,-334,-266,-220,-152,-86,-18,18,86,152,220,266,334,400,468}. Its specific pilot index is the same as the corresponding index design for the additional pilot quantity of 64 to 119 for a single 996-tone RU at 80MHz in the aforementioned non-OFDMA RRU.

[0599] It is worth noting that the specific values ​​of the indices of each interference cancellation pilot subcarrier have been given in the above embodiments. It can be understood that the indices of each interference cancellation pilot subcarrier can also be obtained by shifting the indices left and right by several index positions based on the indices designed above. It should be noted that the shift range of the indices of each interference cancellation pilot subcarrier cannot exceed the pilot index range corresponding to each interference cancellation pilot subcarrier.

[0600] It is worth noting that the design scheme of the number of IM pilots and the specific index position of the IM pilots in the embodiments of this application can be extended to the IM pilot design of MRU (Multiple Resource Unit), that is, multiple RRUs (i.e., MRUs) composed of multiple 26-tone RRUs, 52-tone RRUs, 106-tone RRUs, 242-tone RRUs, 484-tone RRUs, and 996-tone RRUs.

[0601] This application also provides a data transmission method, which is applied to a site device and combined with... Figure 3 The method includes the following:

[0602] S210, Receive a first PPDU sent by the access point device on the first RU. The first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier. The interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information.

[0603] S220, interference estimation is performed on the data information based on the interference cancellation pilot subcarriers, wherein the number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio, the preset ratio being the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers, and the preset ratio being in the range of 1% to 15%.

[0604] The data transmission method provided in this application embodiment receives a first PPDU sent by an access point device on a first RU. The first PPDU includes an interference cancellation pilot subcarrier for interference cancellation of data information carried in a data subcarrier and a data subcarrier for carrying data information. Then, interference estimation is performed on the data information based on the interference cancellation pilot subcarriers included in the first PPDU, and interference cancellation is performed on the data information based on the interference estimation. Since the number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio, and the preset ratio ranges from 1% to 15%, the number of interference cancellation pilot subcarriers is designed according to the preset ratio range of 1% to 15%. Since the preset ratio range is not large, the interference cancellation pilot subcarriers occupy less resources. At the same time, since the interference cancellation pilot subcarriers are added, the effectiveness of interference estimation and / or interference cancellation can also be improved. That is, by reasonably setting the number of interference cancellation pilot subcarriers included in the first PPDU, the rational use of channel resources and the effect of effective interference estimation and / or interference cancellation of data information can be achieved.

[0605] In some embodiments, the preset ratio ranges from 8% to 12%.

[0606] In some embodiments, the preset ratio is 10%.

[0607] In some embodiments, the interference cancellation pilot subcarriers are uniformly arranged or arranged at set intervals in the first RU.

[0608] In some embodiments, the interference cancellation pilot subcarrier includes an existing pilot subcarrier and an additional pilot subcarrier; or the interference cancellation pilot subcarrier includes only an additional pilot subcarrier; wherein, the existing pilot subcarrier is a subcarrier used to carry an existing pilot, the additional pilot subcarrier is a subcarrier used to carry an additional pilot, and the additional pilot is a pilot other than the existing pilot that is reconfigured according to the size of the first RU.

[0609] In some embodiments, if there is a first additional pilot subcarrier that is the same as or adjacent to the existing pilot subcarrier, the first additional pilot subcarrier is replaced with the existing pilot subcarrier that is the same as or adjacent to it.

[0610] In some embodiments, the value of the pilot carried in the interference cancellation pilot subcarrier is at least one of 1, 0, -1.

[0611] In some embodiments, when the first RU is a 26-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 2 or 3;

[0612] When the first RU is a 52-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 6;

[0613] When the first RU is a 106-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 12;

[0614] When the first RU is a 242-tone RU, if the bandwidth is 20MHz, the number of interference cancellation pilot subcarriers is an integer determined from 12 to 29; if the bandwidth is 40MHz or 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 8 to 29.

[0615] When the first RU is a 484-tone RU, if the bandwidth is 40MHz, the number of interference cancellation pilot subcarriers is an integer determined from 22 to 58; if the bandwidth is 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 32 to 58.

[0616] When the first RU is a 996-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 64 to 119.

[0617] In some embodiments, the first PPDU includes an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHRMU) PPDU, an Ultra-Reliable Triggered Physical Layer Protocol Data Unit (UHRTB) PPDU, or an Ultra-Reliable Extended Long Distance Physical Layer Protocol Data Unit (UHRERL) PPDU.

[0618] Wherein, when the first PPDU is a UHR ELR PPDU and is encoded using a low-density parity-check code (LDPC), if the UHR ELR PPDU includes the interference cancellation pilot subcarrier, then the index of the interference cancellation pilot subcarrier is the same as the index of the 52-tone RU in 20MHz.

[0619] It should be understood that the data transmission method applied to site devices in this application embodiment can achieve the effects of the aforementioned data transmission method applied to access point devices in various embodiments, and for the sake of brevity, it will not be described again here.

[0620] The above text combined Figures 1 to 3 The method embodiments of this application are described in detail below, in conjunction with... Figures 4 to 8 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0621] Figure 4 A schematic block diagram of a data transmission apparatus 200 according to an embodiment of this application is shown. The data transmission apparatus 200 may be an access point device, or a component within an access point device, such as a chip, circuit, or module. Figure 4 The data transmission device 200 includes: a generation module 210, used to generate a first physical layer protocol data unit (PPDU); and a transmission module 220, used by the access point device to transmit the first PPDU to a first site device on a first resource unit (RU). The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The interference cancellation pilot subcarriers are used for interference estimation, and the data subcarriers are used to carry data information. The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

[0622] The data transmission apparatus provided in this embodiment generates a first PPDU through an access point device. The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The data subcarriers are used to carry data information, and the interference cancellation subcarriers are used to cancel interference on the data information carried in the data subcarriers. Then, the first PPDU is sent to the first site device on the first RU. Since the number of interference cancellation pilot subcarriers is determined by the number of subcarriers contained in the first RU and a preset ratio, the preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers. The preset ratio ranges from 1% to 15%. That is, by reasonably setting the number of interference cancellation pilot subcarriers contained in the first PPDU, the rational use of channel resources and the effective interference estimation and / or interference cancellation of data information can be achieved.

[0623] It should be understood that the apparatus 200 according to the embodiments of this application may correspond to the access point device in the method embodiments of this application, and the various units in the apparatus 200 and the other operations and / or functions described above are respectively for implementing the figures. Figure 2The corresponding processes applied to the access point devices in the embodiments described herein will not be repeated here for the sake of brevity.

[0624] Figure 5 This is a schematic block diagram of another data transmission device 300 provided according to an embodiment of this application. The data transmission device 300 can be a site device, or a component within a site device, such as a chip, circuit, or module.

[0625] like Figure 5 As shown, the data transmission device 300 includes: a receiving module 310, configured to receive a first PPDU transmitted by an access point device on a first RU, the first PPDU including interference cancellation pilot subcarriers and data subcarriers, the interference cancellation pilot subcarriers being used for interference estimation, and the data subcarriers being used to carry data information; and an interference estimation module 320, configured to perform interference estimation on the data information based on the interference cancellation pilot subcarriers; wherein the number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio, the preset ratio being the ratio of the number of interference cancellation pilot subcarriers to the number of subcarriers, and the preset ratio ranging from 1% to 15%.

[0626] The data transmission apparatus provided in this embodiment receives a first PPDU sent by the access point device on the first RU. The first PPDU includes interference cancellation pilot subcarriers and data subcarriers. The data subcarriers are used to carry data information, and the interference cancellation subcarriers are used to cancel interference on the data information carried in the data subcarriers. Then, interference estimation is performed on the data information based on the interference cancellation pilot subcarriers included in the first PPDU. Since the number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio, and the preset ratio ranges from 1% to 15%, the reasonable use of channel resources and the effective interference estimation and / or interference cancellation of data information can be achieved by reasonably setting the number of interference cancellation pilot subcarriers included in the first PPDU.

[0627] It should be understood that the apparatus 300 according to the embodiments of this application may correspond to the site device in the method embodiments of this application, and the various units in the apparatus 300 and the other operations and / or functions described above are respectively for implementing Figure 4 The corresponding processes of the site devices in the method embodiment shown are not described in detail here for the sake of brevity.

[0628] This application provides an access point device, characterized in that it includes: a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to implement the method applied to the access point device in this application embodiment.

[0629] This application provides a site device, characterized in that it includes: a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to implement the method applied to the site device in this application embodiment.

[0630] Figure 6 This is a schematic structural diagram of a communication device 500 provided in an embodiment of this application. Figure 6 The communication device 500 shown includes a processor 510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0631] Optionally, such as Figure 6 As shown, the communication device 500 may further include a memory 520. The processor 510 can call and run computer programs from the memory 520 to implement the methods in the embodiments of this application. For example, when the communication device 500 is an access point device, the processor 510 can call and run computer programs from the memory 520 to implement the various steps of the method embodiments executed by the access point device, achieving the same technical effect. When the communication device 500 is a terminal device, the processor 510 can call and run computer programs from the memory 520 to implement the various steps of the method embodiments executed by the site device, achieving the same technical effect.

[0632] Alternatively, the memory 520 may be a separate device independent of the processor 510, or it may be integrated into the processor 510.

[0633] Optionally, such as Figure 6 As shown, the communication device 500 may also include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0634] Optionally, transceiver 530 may include a transmitter and a receiver. Transceiver 530 may further include antennas, and the number of antennas may be one or more.

[0635] Figure 7 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 7 The chip 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0636] Optionally, such as Figure 7As shown, chip 600 may further include memory 620. Processor 610 can retrieve and run computer programs from memory 620 to implement the methods described in this embodiment.

[0637] Alternatively, the memory 620 may be a separate device independent of the processor 610, or it may be integrated into the processor 610.

[0638] Optionally, the chip 600 may also include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, for example, to acquire information or data sent by other devices or chips.

[0639] Optionally, the chip 600 may also include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, for example, to output information or data to other devices or chips.

[0640] Optionally, the chip can be applied to the access point device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the access point device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0641] Optionally, the chip can be applied to the site device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the site device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0642] 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.

[0643] Figure 8 This is a schematic block diagram of a communication system 700 provided in an embodiment of this application. Figure 8 As shown, the communication system 700 includes an access point device 710 and a site device 720.

[0644] The access point device 710 can be used to implement the corresponding functions implemented by the access point device in the above method, and the site device 720 can be used to implement the corresponding functions implemented by the site device in the above method. For the sake of brevity, these will not be elaborated here.

[0645] 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 may 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 may 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 may reside 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 the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0646] 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 (DRRAM). 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.

[0647] 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 (DDRSDRAM), 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.

[0648] 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.

[0649] Optionally, the readable storage medium can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0650] Optionally, the readable storage medium can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the third site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0651] 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.

[0652] Optionally, the computer program product can be applied to the access point device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0653] Optionally, the computer program product can be applied to the site device in the embodiments of this application, and the computer program causes the processor to execute the corresponding process implemented by the third site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0654] 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.

[0655] Optionally, the computer program can be applied to the access point device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the access point device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0656] Optionally, the computer program can be applied to the site device in the embodiments of this application. The computer program causes the processor to execute the corresponding process implemented by the third site device in the method embodiments of this application. To avoid repetition, it will not be described again here.

[0657] 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.

[0658] 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.

[0659] 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.

[0660] 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.

[0661] 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.

[0662] 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.

[0663] 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 data transmission method, characterized in that, Applied to access point devices, the method includes: The access point device generates a first physical layer protocol data unit (PPDU). The access point device sends the first PPDU to the first site device on the first resource unit RU. The first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier. The interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information. The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

2. The method according to claim 1, characterized in that, The preset ratio ranges from 8% to 12%.

3. The method according to claim 2, characterized in that, The preset ratio is 10%.

4. The method according to any one of claims 1-3, characterized in that, The interference cancellation pilot subcarriers are evenly distributed or arranged at set intervals in the first RU.

5. The method according to any one of claims 1-4, characterized in that, The interference cancellation pilot subcarrier includes existing pilot subcarriers and additional pilot subcarriers; or the interference cancellation pilot subcarrier includes only additional pilot subcarriers. Wherein, the existing pilot subcarrier is a subcarrier used to carry the existing pilot, and the additional pilot subcarrier is a subcarrier used to carry the additional pilot, wherein the additional pilot is a pilot other than the existing pilot that is reconfigured according to the number of subcarriers of the first RU.

6. The method according to any one of claims 1-5, characterized in that: When the first RU is a 26-tone RU, the number of interference cancellation pilot subcarriers is an integer determined by 2 or 3; When the first RU is a 52-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 6; When the first RU is a 106-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 4 to 12; When the first RU is a 242-tone RU, if the bandwidth is 20MHz, the number of interference cancellation pilot subcarriers is an integer determined from 12 to 29; if the bandwidth is 40MHz or 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 8 to 29. When the first RU is a 484-tone RU, if the bandwidth is 40MHz, the number of interference cancellation pilot subcarriers is an integer determined from 22 to 58; if the bandwidth is 80MHz, the number of interference cancellation pilot subcarriers is an integer determined from 32 to 58. When the first RU is a 996-tone RU, the number of interference cancellation pilot subcarriers is an integer determined from 64 to 119.

7. The method according to claim 6, characterized in that, When the first RU is a 20MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 2, the index of the interference cancellation pilot subcarrier is at least one of {-115,-103}, {-89,-77}, {-62,-50}, {-36,-24}, {-10,10}, {24,36}, {50,62}, {77,89}, and {103,115}, where a, b, m, and n in {a, b, ..., m, n} represent the index value of the interference cancellation pilot subcarrier; or, the index of the interference cancellation pilot subcarrier is obtained by shifting the aforementioned index to the left and right by a certain number of index bits, and the left and right shift range does not exceed the preset index range of each RU; When the first RU is a 20MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 3, the index of the interference cancellation pilot subcarrier is at least one of {-116,-108,-100}, {-90,-82,-74}, {-63,-55,-47}, {-37,-29,-21}, {-14,-6,14}, {-14,6,14}, {21,29,37}, {47,55,63}, {74,82,90}, and {100,108,116}. When the first RU is a 40MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 2, the index of the interference cancellation pilot subcarrier is at least one of {-237,-225}, {-211,-199}, {-183,-171}, {-157,-145}, {-130,-118}, {-103,-91}, {-77,-65}, {-49,-37}, {-23,-11}, {11,23}, {37,49}, {65,77}, {91,103}, {118,130}, {145,157}, {171,183}, {199,211}, and {225,237}. When the first RU is a 40MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 3, the indices of the interference cancellation pilot subcarriers are {-239,-231,-223}, {-213,-205,-197}, {-185,-177,-169}, {-159,-151,-143}, {-132,-124,-116}, {-105,-97,-89}. At least one of the following: {-79,-71,-63}, {-51,-43,-35}, {-25,-17,-9}, {9,17,25}, {35,43,51}, {63,71,79}, {89,97,105}, {116,124,132}, {143,151,159}, {169,177,185}, {197,205,213}, {223,231,239}; When the first RU is an 80MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 2, the indices of the interference cancellation pilot subcarriers are {-493,-481}, {-467,-455}, {-439,-427}, {-413,-401}, {-386,-374}, {-359,-347}, {-333,-321}, {-305,-293}, {-279,-267}, {-251,-239}, {-225,-213}, {-197,-185}, {-171,-159}, {-144,-132}, { At least one of the following: {-117,-105}, {-91,-79}, {-63,-51}, {-37,-25}, {-10,10}, {25,37}, {51,63}, {79,91}, {105,117}, {132,144}, {159,171}, {185,197}, {213,225}, {239,251}, {267,279}, {293,305}, {321,333}, {347,359}, {374,386}, {401,413}, {427,439}, {455,467}, {481,493}; When the first RU is an 80MHz 26-tone RU and the number of interference cancellation pilot subcarriers is 3, the indices of the interference cancellation pilot subcarriers are {-494,-486,-478}, {-468,-460,-452}, {-440,-432,-424}, {-414,-406,-398}, {-387,-379,-371}, {-360,-352,- {344}, {-334,-326,-318}, {-306,-298,-290}, {-280,-272,-264}, {-252,-244,-236}, {-226,-218,-210}, {-198,-190,-182}, {-172,-164,-156}, {-145,-137,-129}, {-118,-110,-102} {-92,-84,-76}, {-64,-56,-48}, {-38,-30,-22}, {-10,-6,10} or {-10,6,10}, {22,30,38}, {48,56,64}, {76,84,92}, {102,110,118}, {129,137,145}, {156,164,172}, {182,190,198}, { At least one of the following: {210,218,226}, {236,244,252}, {264,272,280}, {290,298,306}, {318,326,334}, {344,352,360}, {371,379,387}, {398,406,414}, {424,432,440}, {452,460,468}, {478,486,494}; When the first RU is a 20MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 4, the index of the interference cancellation pilot subcarrier is at least one of {-115,-102,-89,-76}, {-62,-49,-36,-23}, {23,36,49,62}, and {76,89,102,115}. When the first RU is a 20MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 5, the index of the interference cancellation pilot subcarrier is at least one of {-115,-105,-95,-85,-75}, {-62,-52,-42,-32,-22}, {22,32,42,52,62}, and {75,85,95,105,115}. When the first RU is a 20MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 6, the index of the interference cancellation pilot subcarrier is at least one of {-118,-109,-100,-91,-82,-73}, {-65,-56,-47,-38,-29,-20}, {20,29,38,47,56,65}, and {73,82,91,100,109,118}. When the first RU is a 40MHz 52-tone RRU and the number of interference cancellation pilot subcarriers is 4, the index of the interference cancellation pilot subcarrier is at least one of {-237,-224,-211,-198}, {-183,-170,-157,-144}, {-103,-90,-77,-64}, {-49,-36,-23,-10}, {10,23,36,49}, {64,77,90,103}, {144,157,170,183}, and {198,211,224,237}. When the first RU is a 40MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 5, the index of the interference cancellation pilot subcarrier is at least one of {-237,-227,-217,-207,-197}, {-183,-173,-163,-153,-143}, {-103,-93,-83,-73,-63}, {-49,-39,-29,-19,-9}, {9,19,29,39,49}, {63,73,83,93,103}, {143,153,163,173,183}, and {197,207,217,227,237}. When the first RU is a 40MHz 52-tone RRU and the number of interference cancellation pilot subcarriers is 6, the indices of the interference cancellation pilot subcarriers are {-240,-231,-222,-213,-204,-195}, {-186,-177,-168,-159,-150,-141}, and {-106,-97,-8}. At least one of the following: {8,-79,-70,-61}, {-52,-43,-34,-25,-16,-7}, {7,16,25,34,43,52}, {61,70,79,88,97,106}, {141,150,159,168,177,186}, {195,204,213,222,231,240}; When the first RU is an 80MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 4, the indices of the interference cancellation pilot subcarriers are {-493,-480,-467,-454}, {-439,-426,-413,-400}, {-359,-346,-333,-320}, {-305,-292,-279,-266}, {-251,-238,-225,-212}, {-197,-184,-171, At least one of the following: {-158}, {-117,-104,-91,-78}, {-63,-50,-37,-24}, {24,37,50,63}, {78,91,104,117}, {158,171,184,197}, {212,225,238,251}, {266,279,292,305}, {320,333,346,359}, {400,413,426,439}, {454,467,480,493}; When the first RU is an 80MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 5, the indices of the interference cancellation pilot subcarriers are {-493,-483,-473,-463,-453}, {-439,-429,-419,-409,-399}, {-359,-349,-339,-329,-319}, {-305,-295,-285,-275,-265}, {-251,-241,-231,-221,-211}, {-197,-187,-177,-167,-157}. {-117,-107,-97,-87,-77}, {-63,-53,-43,-33,-23}, {23,33,43,53,63}, {77,87,97,107,117}, {157,167,177,187,197}, {211,221,231,241,251}, {265,275,285,295,305}, {319,329,339,349,359}, {399,409,419,429,439}, {453,463,473,483,493} at least one of the following; When the first RU is an 80MHz 52-tone RU and the number of interference cancellation pilot subcarriers is 6, the indices of the interference cancellation pilot subcarriers are {-496,-487,-478,-469,-460,-451}, {-442,-433,-424,-415,-406,-397}, {-362,-353,-344,-335,-326,-317}, {-308,-299,-290,-281,-272,-263}, {-254,-245,-236,-227,-218,-209}, {-200,-191,-182,-173,-164,-155}, {-1 {20,-111,-102,-93,-84,-75}, {-66,-57,-48,-39,-30,-21}, {21,30,39,48,57,66}, {75,84,93,102,111,120}, {155,164,173,182,191,200}, {209,2} At least one of the following: {18,227,236,245,254}, {263,272,281,290,299,308}, {317,326,335,344,353,362}, {397,406,415,424,433,442}, and {451,460,469,478,487,496}; When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 4, the index of the interference cancellation pilot subcarriers is at least one of {-109,-83,-57,-31} and {31,57,83,109}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 5, the index of the interference cancellation pilot subcarrier is at least one of {-112,-91,-70,-49,-28} and {28,49,70,91,112}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 6, the index of the interference cancellation pilot subcarrier is at least one of {-114,-96,-7,-60,-42,-24} and {24,42,60,78,96,114}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 7, the index of the interference cancellation pilot subcarriers is at least one of {-114,-99,-84,-69,-54,-39,-24} and {24,39,54,69,84,99,114}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 8, the index of the interference cancellation pilot subcarrier is at least one of {-115,-102,-89,-76,-63,-50,-37,-24} and {24,37,50,63,76,89,102,115}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 9, the index of the interference cancellation pilot subcarriers is at least one of {-118,-106,-94,-82,-70,-58,-46,-34,-22} and {22,34,46,58,70,82,94,106,118}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 10, the index of the interference cancellation pilot subcarrier is at least one of {-119,-108,-97,-86,-75,-64,-53,-42,-31,-20} and {20,31,42,53,64,75,86,97,108,119}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 11, the index of the interference cancellation pilot subcarrier is at least one of {-119,-109,-99,-89,-79,-69,-59,-49,-39,-29,-19} and {19,29,39,49,59,69,79,89,99,109,119}. When the first RU is a 20MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 12, the index of the interference cancellation pilot subcarrier is at least one of {-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29,-20} and {20,29,38,47,56,65,74,83,92,101,110,119}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 4, the index of the interference cancellation pilot subcarriers is at least one of {-230,-204,-178,-152}, {-96,-70,-44,-18}, {18,44,70,96}, and {152,178,204,230}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 5, the index of the interference cancellation pilot subcarrier is at least one of {-233,-212,-191,-170,-149}, {-99,-78,-57,-36,-15}, {15,36,57,78,99}, and {149,170,191,212,233}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 6, the index of the interference cancellation pilot subcarrier is at least one of {-236,-218,-200,-182,-164,-146}, {-102,-84,-66,-48,-30,-12}, {12,30,48,66,84,102}, and {146,164,182,200,218,236}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 7, the index of the interference cancellation pilot subcarrier is one of {-236,-221,-206,-191,-176,-161,-146}, {-102,-87,-72,-57,-42,-27,-12}, {12,27,42,57,72,87,102}, and {146,161,176,191,206,221,236}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 8, the index of the interference cancellation pilot subcarrier is at least one of {-236, -223, -210, -197, -184, -171, -158, -145}, {-102, -89, -76, -63, -50, -37, -24, -11}, {11, 24, 37, 50, 63, 76, 89, 102}, and {145, 158, 171, 184, 197, 210, 223, 236}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 9, the index of the interference cancellation pilot subcarrier is at least one of {-238, -226, -214, -202, -190, -178, -166, -154, -142}, {-104, -92, -80, -68, -56, -44, -32, -20, -8}, {8, 20, 32, 44, 56, 68, 80, 92, 104}, and {142, 154, 166, 178, 190, 202, 214, 226, 238}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 10, the index of the interference cancellation pilot subcarrier is at least one of {-240,-229,-218,-207,-196,-185,-174,-163,-152,-141}, {-106,-95,-84,-73,-62,-51,-40,-29,-18,-7}, {7,18,29,40,51,62,73,84,95,106}, and {141,152,163,174,185,196,207,218,229,240}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 11, the index of the interference cancellation pilot subcarrier is at least one of {-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140}, {-106,-96,-86,-76,-66,-56,-46,-36,-26,-16,-6}, {6,16,26,36,46,56,66,76,86,96,106}, and {140,150,160,170,180,190,200,210,220,230,240}. When the first RU is a 40MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 12, the index of the interference cancellation pilot subcarrier is at least one of {-240,-231,-222,-213,-204,-195,-186,-177,-168,-159,-150,-141}, {-106,-97,-88,-79,-70,-61,-52,-43,-34,-25,-16,-7}, {7,16,25,34,43,52,61,70,79,88,97,106}, and {141,150,159,168,177,186,195,204,213,222,231,240}. When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 4, the index of the interference cancellation pilot subcarrier is at least one of {-485,-459,-433,-407}, {-351,-325,-299,-273}, {-243,-217,-191,-165}, {-109,-83,-57,-31}, {31,57,83,109}, {165,191,217,243}, {273,299,325,351}, and {407,433,459,485}. When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 5, the index of the interference cancellation pilot subcarrier is at least one of {-489,-468,-447,-426,-405}, {-355,-334,-313,-292,-271}, {-247,-226,-205,-184,-163}, {-113,-92,-71,-50,-29}, {29,50,71,92,113}, {163,184,205,226,247}, {271,292,313,334,355}, and {405,426,447,468,489}. When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 6, the indices of the interference cancellation pilot subcarriers are {-491,-473,-455,-437,-419,-401}, {-357,-339,-321,-303,-285,-267}, and {-249,-231,-213,-19}. At least one of the following: {5,-177,-159}, {-115,-97,-79,-61,-43,-25}, {25,43,61,79,97,115}, {159,177,195,213,231,249}, {267,285,303,321,339,357}, {401,419,437,455,473,491}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 7, the indices of the interference cancellation pilot subcarriers are {-491,-476,-461,-446,-431,-416,-401}, {-357,-342,-327,-312,-297,-282,-267}, and {-249,-234,-219,-204,-189,- At least one of the following: {174,-159}, {-115,-100,-85,-70,-55,-40,-25}, {25,40,55,70,85,100,115}, {159,174,189,204,219,234,249}, {267,282,297,312,327,342,357}, {401,416,431,446,461,476,491}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 8, the indices of the interference cancellation pilot subcarriers are {-492,-479,-466,-453,-440,-427,-414,-401}, {-358,-345,-332,-319,-306,-293,-280,-267}, and {-250,-237,-224,-211,-198,-185,-17}. At least one of the following: {2,-159}, {-116,-103,-90,-77,-64,-51,-38,-25}, {25,38,51,64,77,90,103,116}, {159,172,185,198,211,224,237,250}, {267,280,293,306,319,332,345,358}, {401,414,427,440,453,466,479,492}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 9, the indices of the interference cancellation pilot subcarriers are {-495,-483,-471,-459,-447,-435,-423,-411,-399}, {-361,-349,-337,-325,-313,-301,-289,-277,-265}, and {-253,-241,-229,-217,-205,-193,-181,-169}. At least one of the following: {-157}, {-119,-107,-95,-83,-71,-59,-47,-35,-23}, {23,35,47,59,71,83,95,107,119}, {157,169,181,193,205,217,229,241,253}, {265,277,289,301,313,325,337,349,361}, {399,411,423,435,447,459,471,483,495}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 10, the indices of the interference cancellation pilot subcarriers are {-496,-485,-474,-463,-452,-441,-430,-419,-408,-397}, {-362,-351,-340,-329,-318,-307,-296,-285,-274,-263}, {-254,-243,-232,-221,-210,-199,-188,-177,-166,- At least one of the following: {155}, {-120,-109,-98,-87,-76,-65,-54,-43,-32,-21}, {21,32,43,54,65,76,87,98,109,120}, {155,166,177,188,199,210,221,232,243,254}, {263,274,285,296,307,318,329,340,351,362}, {397,408,419,430,441,452,463,474,485,496}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 11, the indices of the interference cancellation pilot subcarriers are {-496,-486,-476,-466,-456,-446,-436,-426,-416,-406,-396}, {-362,-352,-342,-332,-322,-312,-302,-292,-282,-272,-262}, and {-254,-244,-234,-224,-214,-204,-194,-184,-174,-164,-154}. At least one of the following: {-120,-110,-100,-90,-80,-70,-60,-50,-40,-30,-20}, {20,30,40,50,60,70,80,90,100,110,120}, {154,164,174,184,194,204,214,224,234,244,254}, {262,272,282,292,302,312,322,332,342,352,362}, {396,406,416,426,436,446,456,466,476,486,496}; When the first RU is an 80MHz 106-tone RU and the number of interference cancellation pilot subcarriers is 12, the indices of the interference cancellation pilot subcarriers are {-496,-487,-478,-469,-460,-451,-442,-433,-424,-415,-406,-397}, {-362,-353,-344,-335,-326,-317,-308,-299,-290,-281,-272,-263}, and {-254,-245,-236,-227,-218,-209,-200,-191,-182,-173,-164,-155}. {-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21}, {21,30,39,48,57,66,75,84,93,102,111,120}, {155,164,173,182,191,200,209,2} At least one of the following: {18,227,236,245,254}, {263,272,281,290,299,308,317,326,335,344,353,362}, and {397,406,415,424,433,442,451,460,469,478,487,496}; When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 12, the index of the interference cancellation pilot subcarrier is one of {-107,-86,-65,-44,-23,-2,2,23,44,65,86,107}, {-102,-82,-62,-42,-22,-2,2,22,42,62,82,102}, or {-122,-102,-82,-62,-42,-22,22,42,62,82,102,122}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 13, the index of the interference cancellation pilot subcarrier is the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 12, and any number from {-10:1:-3, 3:1:10} is added, where {-10:1:-3, 3:1:10} means taking values ​​with an interval of 1 between -10 and -3, and taking values ​​with an interval of 1 between 3 and 10; When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 14, the index of the interference cancellation pilot subcarrier is one of {-104,-87,-70,-53,-36,-19,-2,2,19,36,53,70,87,104} or {-121,-104,-87,-70,-53,-36,-19,19,36,53,70,87,104,121}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 15, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 14. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 16, the index of the interference cancellation pilot subcarrier is one of {-107,-92,-77,-62,-47,-32,-17,-2,2,17,32,47,62,77,92,107} or {-122,-107,-92,-77,-62,-47,-32,-17,17,32,47,62,77,92,107,122}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 17, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 16. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 18, the index of the interference cancellation pilot subcarrier is one of {-122,-108,-94,-80,-66,-52,-38,-24,-10,10,24,38,52,66,80,94,108,122} or {-114,-100,-86,-72,-58,-44,-30,-16,-2,2,16,30,44,58,72,86,100,114}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 19, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 18. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 20, the index of the interference cancellation pilot subcarrier is one of {-122,-109,-96,-83,-70,-57,-44,-31,-18,-5,5,18,31,44,57,70,83,96,109,122} or {-119,-106,-93,-80,-67,-54,-41,-28,-15,-2,2,15,28,41,54,67,80,93,106,119}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 21, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 20. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 22, the index of the interference cancellation pilot subcarrier is one of {-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,-2,2,13,24,35,46,57,68,79,90,101,112} and {-122,-111,-100,-89,-78,-67,-56,-45,-34,-23,-12,12,23,34,45,56,67,78,89,100,111,122}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 23, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 22. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 24, the index of the interference cancellation pilot subcarrier is one of {-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,-2,2,12,22,32,42,52,62,72,82,92,102,112} or {-122,-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,12,22,32,42,52,62,72,82,92,102,112,122}. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 25, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 24. When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 26, the index of the interference cancellation pilot subcarriers is {-122,-112,-102,-92,-82,-72,-62,-52,-42,-32,-22,-12,-2,2,12,22,32,42,52,62,72,82,92,102,112,122}; When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 27, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 26. When the first RU is a 20MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 28, the index of the interference cancellation pilot subcarriers is {-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29,-20,-11,-2,2,11,20,29,38,} 47,56,65,74,83,92,101,110,119} or {-122,-113,-104,-95,-86,-77,-68,-59,-50,-41,-32,-23,-14,-5,5,14,23,32,41,50,59,68,77,86,95,104,113,122}; When the first RU is a 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 29, the index of the interference cancellation pilot subcarriers is any one of {-10:1:-3,3:1:10} added to the index of the 20MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 28. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 8, the index of the interference cancellation pilot subcarriers is at least one of {-228,-198,-168,-138,-108,-78,-48,-18} and {18,48,78,108,138,168,198,228}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 9, the index of the interference cancellation pilot subcarrier is at least one of {-231,-204,-177,-150,-123,-96,-69,-42,-15} and {15,42,69,96,123,150,177,204,231}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 10, the index of the interference cancellation pilot subcarrier is at least one of {-231,-207,-183,-159,-135,-111,-87,-63,-39,-15} and {15,39,63,87,111,135,159,183,207,231}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 11, the index of the interference cancellation pilot subcarrier is at least one of {-233,-211,-189,-167,-145,-123,-101,-79,-57,-35,-13} and {13,35,57,79,101,123,145,167,189,211,233}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 12, the index of the interference cancellation pilot subcarrier is at least one of {-233,-213,-193,-173,-153,-133,-113,-93,-73,-53,-33,-13} and {13,33,53,73,93,113,133,153,173,193,213,233}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 13, the index of the interference cancellation pilot subcarrier is at least one of {-237,-218,-199,-180,-161,-142,-123,-104,-85,-66,-47,-28,-9} and {9,28,47,66,85,104,123,142,161,180,199,218,237}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 14, the index of the interference cancellation pilot subcarrier is at least one of {-240,-222,-204,-186,-168,-150,-132,-114,-96,-78,-60,-42,-24,-6} and {6,24,42,60,78,96,114,132,150,168,186,204,222,240}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 15, the index of the interference cancellation pilot subcarrier is at least one of {-235,-219,-203,-187,-171,-155,-139,-123,-107,-91,-75,-59,-43,-27,-11} and {11,27,43,59,75,91,107,123,139,155,171,187,203,219,235}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 16, the index of the interference cancellation pilot subcarrier is at least one of {-235,-220,-205,-190,-175,-160,-145,-130,-115,-100,-85,-70,-55,-40,-25,-10} and {10,25,40,55,70,85,100,115,130,145,160,175,190,205,220,235}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 17, the index of the interference cancellation pilot subcarrier is at least one of {-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78,-63,-48,-33,-18,-3} and {3,18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 18, the index of the interference cancellation pilot subcarrier is at least one of {-243,-229,-215,-201,-187,-173,-159,-145,-131,-117,-103,-89,-75,-61,-47,-33,-19,-5} and {5,19,33,47,61,75,89,103,117,131,145,159,173,187,201,215,229,243}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 19, the index of the interference cancellation pilot subcarrier is at least one of {-241,-228,-215,-202,-189,-176,-163,-150,-137,-124,-111,-98,-85,-72,-59,-46,-33,-20,-7} and {7,20,33,46,59,72,85,98,111,124,137,150,163,176,189,202,215,228,241}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 20, the index of the interference cancellation pilot subcarrier is at least one of {-237,-225,-213,-201,-189,-177,-165,-153,-141,-129,-117,-105,-93,-81,-69,-57,-45,-33,-21,-9} and {9,21,33,45,57,69,81,93,105,117,129,141,153,165,177,189,201,213,225,237}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 21, the index of the interference cancellation pilot subcarrier is at least one of {-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3} and {3,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 22, the index of the interference cancellation pilot subcarrier is at least one of {-239,-228,-217,-206,-195,-184,-173,-162,-151,-140,-129,-118,-107,-96,-85,-74,-63,-52,-41,-30,-19,-8} and {8,19,30,41,52,63,74,85,96,107,118,129,140,151,162,173,184,195,206,217,228,239}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 23, the index of the interference cancellation pilot subcarrier is at least one of {-244,-233,-222,-211,-200,-189,-178,-167,-156,-145,-134,-123,-112,-101,-90,-79,-68,-57,-46,-35,-24,-13-5} and {5,13,24,35,46,57,68,79,90,101,112,123,134,145,156,167,178,189,200,211,222,233,244}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 24, the index of the interference cancellation pilot subcarrier is at least one of {-238,-228,-218,-208,-198,-188,-178,-168,-158,-148,-138,-128,-118,-108,-98,-88,-78,-68,-58,-48,-38,-28,-18,-8} and {8,18,28,38,48,58,68,78,88,98,108,118,128,138,148,158,168,178,188,198,208,218,228,238}. When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 25, the index of the interference cancellation pilot subcarriers is {-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103}. At least one of the following: {3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243}; When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 26, the index of the interference cancellation pilot subcarriers is {-236,-227,-218,-209,-200,-191,-182,-173,-164,-155,-146,-137,-128,-119,-110,-101}. At least one of {11,20,29,38,47,56,65,74,83,92,101,110,119,128,137,146,155,164,173,182,191,200,209,218,227,236}; When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 27, the index of the interference cancellation pilot subcarriers is {-240,-231,-222,-213,-204,-195,-186,-177,-168,-159,-150,-141,-132,-123,-114,-105,-9}. At least one of {6,-87,-78,-69,-60,-51,-42,-33,-24,-15,-6} and {6,15,24,33,42,51,60,69,78,87,96,105,114,123,132,141,150,159,168,177,186,195,204,213,222,231,240}; When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 28, the index of the interference cancellation pilot subcarriers is {-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,- At least one of {91,-82,-73,-64,-55,-46,-37,-28,-19,-10,-5} and {5,10,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172,181,190,199,208,217,226,235,244}; When the first RU is a 40MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 29, the index of the interference cancellation pilot subcarriers is {-236,-228,-220,-212,-204,-196,-188,-180,-172,-164,-156,-148,-140,-132,-124,-116,-108,-100,-9}. At least one of {2, -84, -76, -68, -60, -52, -44, -36, -28, -20, -12} and {12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204, 212, 220, 228, 236}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 8, the index of the interference cancellation pilot subcarrier is at least one of {-484,-454,-424,-394,-364,-334,-304,-274}, {-242,-212,-182,-152,-122,-92,-62,-32}, {32,62,92,122,152,182,212,242}, and {274,304,334,364,394,424,454,484}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 9, the index of the interference cancellation pilot subcarrier is at least one of {-488,-461,-434,-407,-380,-353,-326,-299,-272}, {-246,-219,-192,-165,-138,-111,-84,-57,-30}, {30,57,84,111,138,165,192,219,246}, and {272,299,326,353,380,407,434,461,488}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 10, the index of the interference cancellation pilot subcarrier is at least one of {-488,-464,-440,-416,-392,-368,-344,-320,-296,-272}, {-246,-222,-198,-174,-150,-126,-102,-78,-54,-30}, {30,54,78,102,126,150,174,198,222,246}, and {272,296,320,344,368,392,416,440,464,488}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 11, the index of the interference cancellation pilot subcarrier is at least one of {-490,-468,-446,-424,-402,-380,-358,-336,-314,-292,-270}, {-248,-226,-204,-182,-160,-138,-116,-94,-72,-50,-28}, {28,50,72,94,116,138,160,182,204,226,248}, and {270,292,314,336,358,380,402,424,446,468,490}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 12, the indices of the interference cancellation pilot subcarriers are {-490,-470,-450,-430,-410,-390,-370,-350,-330,-310,-290,-270} and {-248,-228,-208,- At least one of the following: 188,-168,-148,-128,-108,-88,-68,-48,-28}, {28,48,68,88,108,128,148,168,188,208,228,248}, and {270,290,310,330,350,370,390,410,430,450,470,490}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 13, the indices of the interference cancellation pilot subcarriers are {-494,-475,-456,-437,-418,-399,-380,-361,-342,-323,-304,-285,-266} and {-252,-233,-214,-195, -176,-157,-138,-119,-100,-81,-62,-43,-24}, {24,43,62,81,100,119,138,157,176,195,214,233,252}, {266,285,304,323,342,361,380,399,418,437,456,475,494} are at least one of the following: When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 14, the indices of the interference cancellation pilot subcarriers are {-497,-479,-461,-443,-425,-407,-389,-371,-353,-335,-317,-299,-281,-263} and {-255,-237,-219,-201,-18}. At least one of the following: {3, -165, -147, -129, -111, -93, -75, -57, -39, -21}, {21, 39, 57, 75, 93, 111, 129, 147, 165, 183, 201, 219, 237, 255}, {263, 281, 299, 317, 335, 353, 371, 389, 407, 425, 443, 461, 479, 497}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 15, the indices of the interference cancellation pilot subcarriers are {-492,-476,-460,-444,-428,-412,-396,-380,-364,-348,-332,-316,-300,-284,-268} and {-250,-234,-218,-02,-186,-1 At least one of the following: {70,-154,-138,-122,-106,-90,-74,-58,-42,-26}, {26,42,58,74,90,106,122,138,154,170,186,202,218,234,250}, and {268,284,300,316,332,348,364,380,396,412,428,444,460,476,492}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 16, the indices of the interference cancellation pilot subcarriers are {-492,-477,-462,-447,-432,-417,-402,-387,-372,-357,-342,-327,-312,-297,-282,-267} and {-250,-235,-220,-205,-190,-175,- At least one of the following: {160,-145,-130,-115,-100,-85,-70,-55,-40,-25}, {25,40,55,70,85,100,115,130,145,160,175,190,205,220,235,250}, and {267,282,297,312,327,342,357,372,387,402,417,432,447,462,477,492}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 17, the indices of the interference cancellation pilot subcarriers are {-500,-485,-470,-455,-440,-425,-410,-395,-380,-365,-350,-335,-320,-305,-290,-275,-260} and {-258,-243,-228,-213,-198,-183,-168}. At least one of the following: {18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243,258} and {260,275,290,305,320,335,350,365,380,395,410,425,440,455,470,485,500}. When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 18, the indices of the interference cancellation pilot subcarriers are {-498,-484,-470,-456,-442,-428,-414,-400,-386,-372,-358,-344,-330,-316,-302,-288,-274,-260} and {-256,-242,-228,-214,-200,-186,-172,-15}. At least one of the following: {8,-144,-130,-116,-102,-88,-74,-60,-46,-32,-18}, {18,32,46,60,74,88,102,116,130,144,158,172,186,200,214,228,242,256}, and {260,274,288,302,316,330,344,358,372,386,400,414,428,442,456,470,484,498}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 19, the indices of the interference cancellation pilot subcarriers are {-496,-483,-470,-457,-444,-431,-418,-405,-392,-379,-366,-353,-340,-327,-314,-301,-288,-275,-262} and {-254,-241,-228,-215,-02,-189,-176,-163,- At least one of the following: {150,-137,-124,-111,-98,-85,-72,-59,-46,-33,-20}, {20,33,46,59,72,85,98,111,124,137,150,163,176,189,202,215,228,241,254}, {262,275,288,301,314,327,340,353,366,379,392,405,418,431,444,457,470,483,496}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 20, the indices of the interference cancellation pilot subcarriers are {-494,-482,-470,-458,-446,-434,-422,-410,-398,-386,-374,-362,-350,-338,-326,-314,-302,-290,-278,-266} and {-252,-240,-228,-216,-204,-192,-180,-168,-156}. -144,-132,-120,-108,-96,-84,-72,-60,-48,-36,-24}, {24,36,48,60,72,84,96,108,120,132,144,156,168,180,192,204,216,228,240,252}, {266,278,290,302,314,326,338,350,362,374,386,398,410,422,434,446,458,470,482,494} at least one of the following; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 21, the indices of the interference cancellation pilot subcarriers are {-500,-488,-476,-464,-452,-440,-428,-416,-404,-392,-380,-368,-356,-344,-332,-320,-308,-296,-284,-272,-260} and {-258}. {18,30,42,54,66,78,90,102,114,126,138,150,162,174,186,198,210,222,234,246,258}, {260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488,500} at least one of them; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 22, the indices of the interference cancellation pilot subcarriers are {-495,-484,-473,-462,-451,-440,-429,-418,-407,-396,-385,-374,-363,-352,-341,-330,-319,-308,-297,-286,-275,-264} and {-253,-242,-231,-220,-209,-198,-187,-176,-165,-154,-1 At least one of the following: {43,-132,-121,-110,-99,-88,-77,-66,-55,-44,-33,-22}, {22,33,44,55,66,77,88,99,110,121,132,143,154,165,176,187,198,209,220,231,242,253}, {264,275,286,297,308,319,330,341,352,363,374,385,396,407,418,429,440,451,462,473,484,495}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 23, the indices of the interference cancellation pilot subcarriers are {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-262} and {-256,-245,-234,-223,-212,-01,-190,-179,-168,-157,-146,- At least one of the following: {135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-20}, {20,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256}, {262,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476,487,498}; When the first RU is an 80MHz 242-tone RU, and the number of interference cancellation pilot subcarriers is 24, the indices of the interference cancellation pilot subcarriers are {-495,-485,-475,-465,-455,-445,-435,-425,-415,-405,-395,-385,-375,-365,-355,-345,-335,-325,-315,-305,-295,-285,-275,-265} and {-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143}. -133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23}, {23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253}, {265,275,285,295,305,315,325,335,345,355,365,375,385,395,405,415,425,435,445,455,465,475,485,495} at least one of the following; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 25, the indices of the interference cancellation pilot subcarriers are {-500,-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260} and {-258,-248,-238,-228,-218,-208,-198,-188,-178,-168,-158,-148,-13 8,-128,-118,-108,-98,-88,-78,-68,-58,-48,-38,-28,-18}、{18,28,38,48,58,68,78,88,98,108,118,128,138,148,158,168,178,188,198,208, At least one of {218,228,238,248,258} and {260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490,500}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 26, the indices of the interference cancellation pilot subcarriers are {-492,-483,-474,-465,-456,-447,-438,-429,-420,-411,-402,-393,-384,-375,-366,-357,-348,-339,-330,-321,-312,-303,-294,-285,-276,-267} and {-250,-241,-232,-223,-214,-205,-196,-187,-178,-169,-160,-151,-142,-1 33,-124,-115,-106,-97,-88,-79,-70,-61,-52,-43,-34,-25}、{25,34,43,52,61,70,79,88,97,106,115,124,133,142,151,160,169,178,187,196,205, At least one of {214,223,232,241,250} and {267,276,285,294,303,312,321,330,339,348,357,366,375,384,393,402,411,420,429,438,447,456,465,474,483,492}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 27, the index of the interference cancellation pilot subcarriers is {-496,-487,-478,-469,-460,-451,-442,-433,-424,-415,-406,-397,-388,-379,-37}. 0,-361,-352,-343,-334,-325,-316,-307,-298,-289,-280,-271,-262}、{-254,-245,-236,-227,-218,-209,-200,-191,-182,-173,-164,-155,-146,-137,- 128,-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29,-20}、{20,29,38,47,56,65,74,83,92,101,110,119,128,137,146,155,164,173,182,191,200,209 At least one of the following: {218,227,236,245,254} and {262,271,280,289,298,307,316,325,334,343,352,361,370,379,388,397,406,415,424,433,442,451,460,469,478,487,496}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 28, the index of the interference cancellation pilot subcarriers is {-500,-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-3}. 65,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-260}、{-258,-249,-240,-231,-222,-213,-204,-195,-186,-177,-168,-159,-150,-141,-132 ,-123,-114,-105,-96,-87,-78,-69,-60,-51,-42,-33,-24,-18}、{18,24,33,42,51,60,69,78,87,96,105,114,123,132,141,150,159,168,177,186,195,204,213 At least one of {222,231,240,249,258} and {260,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491,500}; When the first RU is an 80MHz 242-tone RU and the number of interference cancellation pilot subcarriers is 29, the index of the interference cancellation pilot subcarriers is {-492,-484,-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396,-388,-380,-372,- 364,-356,-348,-340,-332,-324,-316,-308,-300,-292,-284,-276,-268}、{-250,-242,-234,-226,-218,-210,-202,-194,-186,-178,-170,-162,-154,-146,-138,-13 0,-122,-114,-106,-98,-90,-82,-74,-66,-58,-50,-42,-34,-26}、{26,34,42,50,58,66,74,82,90,98,106,114,122,130,138,146,154,162,170,178,186,194,202,210 {218,226,234,242,250} and {268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476,484,492} are at least one of the following; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 22, the index of the interference cancellation pilot subcarriers is {-223,-201,-179,-157,-135,-113,-91,-69,-47,-25,-3,3,25,47,69,91,113,135,157,179,201,223} or {-244,-222,-200,-178,-156,-134,-112,-90,-68,-46,-24,24,46,68,90,112,134,156,178,200,222,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 23, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 22. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 24, the index of the interference cancellation pilot subcarriers is {-234,-213,-192,-171,-150,-129,-108,-87,-66,-45,-24,-3,3,24,45,66,87,108,129,150,171,192,213,234} or {-244,-223,-202,-181,-160,-139,-118,-97,-76,-55,-34,-13,13,34,55,76,97,118,139,160,181,202,223,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 25, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 24. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 26, the index of the interference cancellation pilot subcarriers is {-231,-212,-193,-174,-155,-136,-117,-98,-79,-60,-41,-22,-3,3,22,41,60,79,98,} 117,136,155,174,193,212,231} or {-244,-225,-206,-187,-168,-149,-130,-111,-92,-73,-54,-35,-16,16,35,54,73,92,111,130,149,168,187,206,225,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 27, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 26. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 28, the index of the interference cancellation pilot subcarriers is {-237,-219,-201,-183,-165,-147,-129,-111,-93,-75,-57,-39,-21,-3,3,21,39,57,75,93,111,} 129,147,165,183,201,219,237} or {-244,-226,-208,-190,-172,-154,-136,-118,-100,-82,-64,-46,-28,-10,10,28,46,64,82,100,118,136,154,172,190,208,226,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 29, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 28. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 30, the index of the interference cancellation pilot subcarriers is {-244,-227,-210,-193,-176,-159,-142,-125,-108,-91,-74,-57,-40,-23,-6,6,23,40,57,74,91,108,12}. 5,142,159,176,193,210,227,244} or {-241,-224,-207,-190,-173,-156,-139,-122,-105,-88,-71,-54,-37,-20,-3,3,20,37,54,71,88,105,122,139,156,173,190,207,224,241}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 31, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 30. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 32, the index of the interference cancellation pilot subcarriers is {-243,-227,-211,-195,-195,-179,-163,-147,-131,-115,-99,-83,-67,-51,-35,-19,-3,3,19,35,51,67,83,99,115,1}. 31,147,163,179,195,211,227,243} or {-244,-228,-212,-196,-180,-164,-148,-132,-116,-100,-84,-68,-52,-36,-20,-4,4,20,36,52,68,84,100,116,132,148,164,180,196,212,228,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 33, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 32. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 34, the index of the interference cancellation pilot subcarriers is {-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78,-63,-48,-33,-18,-3,3,18,33,48,63,78,93,108,123,13}. 8,153,168,183,198,213,228,243} or {-244,-229,-214,-199,-184,-169,-154,-139,-124,-109,-94,-79,-64,-49,-34,-19,-4,4,19,34,49,64,79,94,109,124,139,154,169,184,199,214,229,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 35, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 34. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 36, the index of the interference cancellation pilot subcarriers is {-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,-101,-87,-73,-59,-45,-31,-17,-3,3,17,31,45,59,73,87,101,115,129,14}. 3,157,171,185,199,213,227,241} or {-244,-230,-216,-202,-188,-174,-160,-146,-132,-118,-104,-90,-76,-62,-48,-34,-20,-6,6,20,34,48,62,76,90,104,118,132,146,160,174,188,202,216,230,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 37, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 36. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 38, the index of the interference cancellation pilot subcarriers is {-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,-68,-55,-42,-29,-16,-3,3,16,29,42,55,68,81,94,107,120,133,146,} 159,172,185,198,211,224,237} or {-244,-231,-218,-205,-192,-179,-166,-153,-140,-127,-114,-101,-88,-75,-62,-49,-36,-23,-10,10,23,36,49,62,75,88,101,114,127,140,153,166,179,192,205,218,231,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 39, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 38. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 40, the index of the interference cancellation pilot subcarriers is {-231,-219,-207,-195,-183,-171,-183,-171,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,11}. 1,123,135,147,159,171,183,195,207,219,231}、{-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,1 71,183,195,207,219,231,243}、{-244,-232,-220,-208,-196,-184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-52,-40,-28,-16,16,28,40,52,64,76,88,100,112,124,136,148,160,172,184,196,20 8,220,232,244}, {-232,-220,-208,-196,-184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-5 2,-40,-28,-16,-4,4,16,28,40,52,64,76,88,100,112,124,136,148,160,172,184,196,208,220,232} one; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 41, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the number of interference cancellation pilot subcarriers of 40. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 42, the index of the interference cancellation pilot subcarriers is {-243,-231,-219,-207,-195,-183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,111,123,135,147,159}. ,171,183,195,207,219,231,243} or {-244,-232,-220,-208,-196,-184,-172,-160,-148,-136,-124,-112,-100,-88,-76,-64,-52,-40,-28,-16,-4,4,16,28,40,52,64,76,88,100,112,124,136,148,160,172,184,196,208,220,232,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 43, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and the index of the number of interference cancellation pilot subcarriers is 42, with any number from {-10:1:-3,3:1:10} added. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 44, the index of the interference cancellation pilot subcarriers is {-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157}. 168,179,190,201,212,223,234} or {-244,-233,-222,-211,-200,-189,-178,-167,-156,-145,-134,-123,-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,13,24,35,46,57,68,79,90,101,112,123,134,145,156,167,178,189,200,211,222,233,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 45, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 44. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 46, the index of the interference cancellation pilot subcarriers is {-244,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157,16}. 8,179,190,201,212,223,234,244} or {-244,-233,-222,-211,-200,-189,-178,-167,-156,-145,-134,-123,-112,-101,-90,-79,-68,-57,-46,-35,-24,-13,-3,3,13,24,35,46,57,68,79,90,101,112,123,134,145,156,167,178,189,200,211,222,233,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 47, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and the index of the number of interference cancellation pilot subcarriers is 46, with any number from {-10:1:-3, 3:1:10} added. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 48, the index of the interference cancellation pilot subcarriers is {-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,1}. 33,143,153,163,173,183,193,203,213,223,233}、{-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173 ,183,193,203,213,223,233,243}、{-244,-234,-224,-214,-204,-194,-184,-174,-164,-154,-144,-134,-124,-114,-104,-94,-84,-74,-64,-54,-44,-34,-24,-14,14,24,34,44,54,64,74,84,94,104,114,124,134,144,154,164,174,184,194,204,2 14,224,234,244}, {-234,-224,-214,-204,-194,-184,-174,-164,-154,-144,-134,-124,-114,-104,-94,-84,-74,-64,-54, One of -44,-34,-24,-14,-4,4,14,24,34,44,54,64,74,84,94,104,114,124,134,144,154,164,174,184,194,204,214,224,234}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 49, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 48. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 50, the index of the interference cancellation pilot subcarriers is {-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,17}. 3,183,193,203,213,223,233,243} or {-244,-234,-224,-214,-204,-194,-184,-174,-164,-154,-144,-134,-124,-114,-104,-94,-84,-74,-64,-54,-44,-34,-24,-14,-4,4,14,24,34,44,54,64,74,84,94,104,114,124,134,144,154,164,174,184,194,204,214,224,234,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 51, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 50. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 52, the index of the interference cancellation pilot subcarriers is {-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138}. ,147,156,165,174,183,192,201,210,219,228}、{-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,18 3,192,201,210,219,228,237}、{-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64,-55,-46,-37,-28,-19,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172,181,190,199,208,217 ,226,235,244}、{-235,-226,-217,-208,-199,-190,-181,-172,-16 3,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64,-55,- 46,-37,-28,-19,-10,10,19,28,37,46,55,64,73,82,91,100,109,118,127,136,145,154,163,172,181,190,199,208,217,226,235} one; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 53, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the number of interference cancellation pilot subcarriers of 52. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 54, the index of the interference cancellation pilot subcarriers is {-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183}. 192,201,210,219,228,237}、{-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64 ,-55,-46,-37,-28,-19,-10,10,19,28,37,46,55,64,73,82,91,100,109, One of 118,127,136,145,154,163,172,181,190,199,208,217,226,235,244}; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 55, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 54. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 56, the index of the interference cancellation pilot subcarriers is {-242,-237,-228,-219,-210,-201,-192,-183,-174,-165,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183}. {192,201,210,219,228,237,242}、{-244,-235,-226,-217,-208,-199,-190,-181,-172,-163,-154,-145,-136,-127,-118,-109,-100,-91,-82,-73,-64} ,-55,-46,-37,-28,-19,-10,-3,3,10,19,28,37,46,55,64,73,82,91,100,1 09,118,127,136,145,154,163,172,181,190,199,208,217,226,235,244} one; When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 57, the index of the interference cancellation pilot subcarriers is 40MHz 484-tone RU, and the index of the number of interference cancellation pilot subcarriers is 56, with any number from {-10:1:-3, 3:1:10} added. When the first RU is a 40MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 58, the index of the interference cancellation pilot subcarriers is {-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,-11,-3,3,11,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,13}. 9,147,155,163,171,179,187,195,203,211,219,227}、{-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-1 15,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,-11,11,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,1 71,179,187,195,203,211,219,227,235}、{-243,-235,-227,-219,-211,-203,-195,-187,-179,-171,-163,-155,-147,-139,-131,-123,-115,-1 07,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,19,27,35,43,51,59,67,75,83,91,99,107,115,123,131,139,147,155,163,171,179,187,1 95,203,211,219,227,235,243}、{-244,-236,-228,-220,-212,-204,-196,-188,-180,-172,-164,-156,-148,-140,-132,-124,-116,-108,-100,- 92, -84, -76, -68, -60, -52, -44, -36, -28, -20, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204212,220,228,236,244}, {-236,-228,-220,-212,-204,-196,-188,-180,-172,-164,-156,-148,-140,-132,-124,-116,-108,-100,-92,-84,-76,- 68,-60,-52,-44,-36,-28,-20,-12,12,20,28,36,44,52,60,68,76,84,92,100,108,116,124,132,140,148,156,164,172,180,188,196,204,212,22 0,228,236}, {-228,-220,-212,-204,-196,-188,-180,-172,-164,-156,-148,-140,-132,-124,-116,-108,-100,-92,-84,-76,-68,-60,-52,-44, -36,-28,-20,-12,-4,4,12,20,28,36,44,52,60,68,76,84,92,100,108,116,124,132,140,148,156,164,172,180,188,196,204,212,220,228} one of the following; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 32, the index of the interference cancellation pilot subcarriers is {-491,-476,-461,-446,-431,-416,-401,-386,-371,-356,-341,-326,-311,-296,-281,-266,-251,-236,-221,-206,-191,-176,- At least one of {161,-146,-131,-116,-101,-86,-71,-56,-41,-26} and {26,41,56,71,86,101,116,131,146,161,176,191,206,221,236,251,266,281,296,311,326,341,356,371,386,401,416,431,446,461,476,491}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 33, the index of the interference cancellation pilot subcarriers is {-498,-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303,-288,-273,-258,-243,-228,-213,-198,-183,-168,} -153,-138,-123,-108,-93,-78,-63,-48,-33,-18}, and at least one of {18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243,258,273,288,303,318,333,348,363,378,393,408,423,438,453,468,483,498}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 34, the index of the interference cancellation pilot subcarriers is {-490,-476,-462,-448,-434,-420,-406,-392,-378,-364,-350,-336,-322,-308,-294,-280,-266,-252,-238,-224,-210,-196,-182,-168}. At least one of {28,42,56,70,84,98,112,126,140,154,168,182,196,210,224,238,252,266,280,294,308,322,336,350,364,378,392,406,420,434,448,462,476,490}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 35, the index of the interference cancellation pilot subcarriers is {-496,-482,-468,-454,-440,-426,-412,-398,-384,-370,-356,-342,-328,-314,-300,-286,-272,-258,-244,-230,-216,-02,-188,-174,-160}. At least one of {20,34,48,62,76,90,104,118,132,146,160,174,188,202,216,230,244,258,272,286,300,314,328,342,356,370,384,398,412,426,440,454,468,482,496}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 36, the indices of the interference cancellation pilot subcarriers are {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-150,-136,-122,-108,-94,-80,-66,-52,-38,-24-20}, {20 24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 37, the index of the interference cancellation pilot subcarriers is {-492,-479,-466,-453,-440,-427,-414,-401,-388,-375,-362,-349,-336,-323,-310,-297,-284,-271,-258,-245,-232,-219,-206,-193,-180,-167,-15}. At least one of {4,-141,-128,-115,-102,-89,-76,-63,-50,-37,-24} and {24,37,50,63,76,89,102,115,128,141,154,167,180,193,206,219,232,245,258,271,284,297,310,323,336,349,362,375,388,401,414,427,440,453,466,479,492}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 38, the index of the interference cancellation pilot subcarriers is {-499,-486,-473,-460,-447,-434,-421,-408,-395,-382,-369,-356,-343,-330,-317,-304,-291,-278,-265,-252,-239,-226,-213,-200,-187,-174,-161,- At least one of the following: 148,-135,-122,-109,-96,-83,-70,-57,-44,-31,-18} and {18,31,44,57,70,83,96,109,122,135,148,161,174,187,200,213,226,239,252,265,278,291,304,317,330,343,356,369,382,395,408,421,434,447,460,473,486,499}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 39, the index of the interference cancellation pilot subcarriers is {-487,-475,-463,-451,-439,-427,-415,-403,-391,-379,-367,-355,-343,-331,-319,-307,-295,-283,-271,-259,-247,-235,-223,-211,-199,-187,-175,-163,-151}. At least one of the following: {31,43,55,67,79,91,103,115,127,139,151,163,175,187,199,211,223,235,247,259,271,283,295,307,319,331,343,355,367,379,391,403,415,427,439,451,463,475,487}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 40, the index of the interference cancellation pilot subcarriers is {-492,-480,-468,-456,-444,-432,-420,-408,-396,-384,-372,-360,-348,-336,-324,-312,-300,-288,-276,-264,-252,-240,-228,-216,-204,-192,-180,-168,-156,} -144,-132,-120,-108,-96,-84,-72,-60,-48,-36,-24}, {24,36,48,60,72,84,96,108,120,132,144,156,168,180,192,204,216,228,240,252,264,276,288,300,312,324,336,348,360,372,384,396,408,420,432,444,456,468,480,492} at least one of the following: When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 41, the index of the interference cancellation pilot subcarriers is {-499,-487,-475,-463,-451,-439,-427,-415,-403,-391,-379,-367,-355,-343,-331,-319,-307,-295,-283,-271,-259,-247,-235,-223,-211,-199,-187,-175,-163,-151,} -139,-127,-115,-103,-91,-79,-67,-55,-43,-31,-19}, {19,31,43,55,67,79,91,103,115,127,139,151,163,175,187,199,211,223,235,247,259,271,283,295,307,319,331,343,355,367,379,391,403,415,427,439,451,463,475,487,499} at least one of the following: When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 42, the index of the interference cancellation pilot subcarriers is {-484,-473,-462,-451,-440,-429,-418,-407,-396,-385,-374,-363,-352,-341,-330,-319,-308,-297,-286,-275,-264,-253,-242,-231,-220,-209,-198,-187,-176,-165,-154}. At least one of {33,44,55,66,77,88,99,110,121,132,143,154,165,176,187,198,209,220,231,242,253,264,275,286,297,308,319,330,341,352,363,374,385,396,407,418,429,440,451,462,473,484}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 43, the index of the interference cancellation pilot subcarriers is {-489,-478,-467,-456,-445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148}. At least one of {27,38,49,60,71,82,93,82,71,60,49,38,27} and {27,38,49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 44, the index of the interference cancellation pilot subcarriers is {-495,-484,-473,-462,-451,-440,-429,-418,-407,-396,-385,-374,-363,-352,-341,-330,-319,-308,-297,-286,-275,-264,-253,-242,-231,-220,-209,-198,-187,-176,-165,-154,-1}. At least one of the following: {43,-132,-121,-110,-99,-88,-77,-66,-55,-44,-33,-22} and {22,33,44,55,66,77,88,99,110,121,132,143,154,165,176,187,198,209,220,231,242,253,264,275,286,297,308,319,330,341,352,363,374,385,396,407,418,429,440,451,462,473,484,495}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 45, the index of the interference cancellation pilot subcarriers is {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333}. ,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25-20}、{20 25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,421,432,443,454,465,476,487,498} at least one of; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 46, the index of the interference cancellation pilot subcarriers is {-485,-475,-465,-455,-445,-435,-425,-415,-405,-395,-385,-375,-365,-355,-345,-335,-325,-315,-305,-295,-285,-275,-265,-255,-245,-235,-225,-215,-205,-195,-185,-175,-165,-155,-1}. At least one of {45,-135,-125,-115,-105,-95,-85,-75,-65,-55,-45,-35} and {35,45,55,65,75,85,95,105,115,125,135,145,155,165,175,185,195,205,215,225,235,245,255,265,275,285,295,305,315,325,335,345,355,365,375,385,395,405,415,425,435,445,455,465,475,485}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 47, the index of the interference cancellation pilot subcarriers is {-488,-478,-468,-458,-448,-438,-428,-418,-408,-398,-388,-378,-368,-358,-348,-338,-328,-318,-308,-298,-288,-278,-268,-258,-248,-238,-228,-218,-208,-198,-188,-178,-168,-158,-148,- At least one of the following: 138,-128,-118,-108,-98,-88,-78,-68,-58,-48,-38,-28} and {28,38,48,58,68,78,88,98,108,118,128,138,148,158,168,178,188,198,208,218,228,238,248,258,268,278,288,298,308,318,328,338,348,358,368,378,388,398,408,418,428,438,448,458,468,478,488}; When the first RU is an 80MHz 484-tone RU, and the number of interference cancellation pilot subcarriers is 48, the index of the interference cancellation pilot subcarriers is {-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143}. -133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23}, {23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483,493} at least one of the following: When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 49, the index of the interference cancellation pilot subcarriers is {-499,-489,-479,-469,-459,-449,-439,-429,-419,-409,-399,-389,-379,-369,-359,-349,-339,-329,-319,-309,-299,-289,-279,-269,-259,-249,-239,-229,-219,-209,-199,-189,-179,-169,-159,-149,-139}. At least one of {19,29,39,49,59,89,79,69,59,49,39,29,49} and {19,29,39,49,59,69,79,89,99,109,119,129,139,149,159,169,179,189,199,209,219,229,239,249,259,269,279,289,299,309,319,329,339,349,359,369,379,389,399,409,419,429,439,449,459,469,479,489,499}; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 50, the index of the interference cancellation pilot subcarriers is {-500,-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,- 320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-110,-100,-90,-80,-70,-60,-50,-40,-30,-20-18}、{18 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500} at least one of; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 51, the index of the interference cancellation pilot subcarriers is {-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140}. ,-131,-122,-113,-104,-95,-86,-77,-68,-59,-50,-41,-32}、{32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,2 12,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 52, the index of the interference cancellation pilot subcarriers is {-488,-479,-470,-461,-452,-443,-434,-425,-416,-407,-398,-389,-380,-371,-362,-353,-344,-335,-326,-317,-308,-299,-290,-281,-272,-263,-254,-245,-236,-227,-218,-209,-200,-191,-182,-173,-164,-155,-146,-13}. 7,-128,-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29}、{29,38,47,56,65,74,83,92,101,110,119,128,137,146,155,164,173,182,191,200,20 9,218,227,236,245,254,263,272,281,290,299,308,317,326,335,344,353,362,371,380,389,398,407,416,425,434,443,452,461,470,479,488} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 53, the index of the interference cancellation pilot subcarriers is {-493,-484,-475,-466,-457,-448,-439,-430,-421,-412,-403,-394,-385,-376,-367,-358,-349,-340,-331,-322,-313,-304,-295,-286,-277,-268,-259,-250,-241,-232,-223,-214,-205,-196,-187,-178,-169,-160,-151,-142,-1 33,-124,-115,-106,-97,-88,-79,-70,-61,-52,-43,-34,-25}、{25,34,43,52,61,70,79,88,97,106,115,124,133,142,151,160,169,178,187,196,205,2 14,223,232,241,250,259,268,277,286,295,304,313,322,331,340,349,358,367,376,385,394,403,412,421,430,439,448,457,466,475,484,493} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 54, the index of the interference cancellation pilot subcarriers is {-497,-488,-479,-470,-461,-452,-443,-434,-425,-416,-407,-398,-389,-380,-3}. 71,-362,-353,-344,-335,-326,-317,-308,-299,-290,-281,-272,-263,-254,-245,-236,-227,-218,-209,-200,-191,-182,-173,-164,-155,-146,-137,- 128,-119,-110,-101,-92,-83,-74,-65,-56,-47,-38,-29,-20}、{20,29,38,47,56,65,74,83,92,101,110,119,128,137,146,155,164,173,182,191,200,20 9,218,227,236,245,254,263,272,281,290,299,308,317,326,335,344,353,362,371,380,389,398,407,416,425,434,443,452,461,470,479,488,497} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 55, the index of the interference cancellation pilot subcarriers is {-499,-490,-481,-472,-463,-454,-445,-436,-427,-418,-409,-400,-391,-382,-373,-364,-355,-346,-337,-328,-31}. 9,-310,-301,-292,-283,-274,-265,-256,-247,-238,-229,-220,-211,-202,-193,-184,-175,-166,-157,-148,-139,-130,-121,-112,-103,-94,-85,-76,-67,-58,-49,-40,-31,-22-18}、{18 22,31,40,49,58,67,76,85,94,103,112,121,130,139,148,157,166,175,184,193,202,211,220,229,238,247,256,265,274,283,292,301,310,319,328,337,346,355,364,373,382,391,400,409,418,427,436,445,454,463,472,481,490,499} at least one of them; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 56, the index of the interference cancellation pilot subcarriers is {-478,-470,-462,-454,-446,-438,-430,-422,-414,-406,-398,-390,-382,-374,-366,-3}. 58, -350, -342, -334, -326, -318, -310, -302, -294, -286, -278, -270, -262, -254, -246, -238, -230, -222, -214, -206, -198, -190, -182, -174, -166, -158, -150, -142, - 134,-126,-118,-110,-102,-94,-86,-78,-70,-62,-54,-46,-38}、{38,46,54,62,70,78,86,94,102,110,118,126,134,142,150,158,166,174,182,190,198,206,2 14,222,230,238,246,254,262,270,278,286,294,302,310,318,326,334,342,350,358,366,374,382,390,398,406,414,422,430,438,446,454,462,470,478} at least one of; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 57, the index of the interference cancellation pilot subcarriers is {-482,-474,-466,-458,-450,-442,-434,-426,-418,-410,-402,-394,-386,-378,-370,-362}. -354, -346, -338, -330, -322, -314, -306, -298, -290, -282, -274, -266, -258, -250, -242, -234, -226, -218, -210, -202, -194, -186, -178, -170, -162, -154, -146, -138 -130,-122,-114,-106,-98,-90,-82,-74,-66,-58,-50,-42,-34}、{34,42,50,58,66,74,82,90,98,106,114,122,130,138,146,154,162,170,178,186,194,202,210, 218,226,234,242,250,258,266,274,282,290,298,306,314,322,330,338,346,354,362,370,378,386,394,402,410,418,426,434,442,450,458,466,474,482} at least one of; When the first RU is an 80MHz 484-tone RU and the number of interference cancellation pilot subcarriers is 58, the index of the interference cancellation pilot subcarriers is {-487,-479,-471,-463,-455,-447,-439,-431,-423,-415,-407,-399,-391,-383,-375,-367,- 359,-351,-343,-335,-327,-319,-311,-303,-295,-287,-279,-271,-263,-255,-247,-239,-231,-223,-215,-207,-199,-191,-183,-175,-167,-159,-151,-143,-135 ,-127,-119,-111,-103,-95,-87,-79,-71,-63,-55,-47,-39,-31}、{31,39,47,55,63,71,79,87,95,103,111,119,127,135,143,151,159,167,175,183,191,199,207,2 15,223,231,239,247,255,263,271,279,287,295,303,311,319,327,335,343,351,359,367,375,383,391,399,407,415,423,431,439,447,455,463,471,479,487} at least one of them; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 64, the index of the interference cancellation pilot subcarriers is {-499,-483,-467,-451,-435,-419,-403,-387,-371,-355,-339,-323,-307,-291,-275,-259,-243,-227,} -211,-195,-179,-163,-147,-131,-115,-99,-83,-67,-51,-35,-19,-3,3,19,35,51,67,83,99,115,131,147,163,179,195,211,227,243,259,275,291,307,323,339,355,371,387 ,403,419,435,451,467,483,499} or {-500,-484,-468,-452,-436,-420,-404,-388,-372,-356,-340,-324,-308,-292,-276,-260,-244,-228,-212,-196,-180,-164,-148,-132,-1 16,-100,-84,-68,-52,-36,-20,-4,4,20,36,52,68,84,100,116,132,148,164,180,196,212,228,244,260,276,292,308,324,340,356,372,388,404,420,436,452,468,484,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 65, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and the index of the number of interference cancellation pilot subcarriers is 64, with any number from {-10:1:-3,3:1:10} added. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 66, the index of the interference cancellation pilot subcarriers is {-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303,-288,-273,-258,-243,-228,-213,-198,-183,-168,-153,-138,-123,-108,-93,-78,-63,-48,-33,-18,-3,3,18,33,48,63,78,93,108,123,138}. ,153,168,183,198,213,228,243,258,273,288,303,318,333,348,363,378,393,408,423,438,453,468,483} or {-498,-483,-468,-453,-438,-423, -408, -393, -378, -363, -348, -333, -318, -303, -288, -273, -258, -243, -228, -213, -198, -183, -168, -153, -138, -123, -108, -93, -78, -63, -48, -33 -18,18,33,48,63,78,93,108,123,138,153,168,183,198,213,228,243,258,273,288,303,318,333,348,363,378,393,408,423,438,453,468,483 {498} or {-485,-470,-455,-440,-425,-410,-395,-380,-365,-350,-335,-320,-305,-290,-275,-260,-245,-230,-215,-200,-185,-170,-155,-14} 0, -125, -110, -95, -80, -65, -50, -35, -20, -5, 5, 20, 35, 50, 65, 80, 95, 110, 125, 140, 155, 170, 185, 200, 215, 230, 245, 260, 275, 290, 305, 320, 335, 35 0,365,380,395,410,425,440,455,470,485} or {-500,-485,-470,-455,-440,-425,-410,-395,-380,-365,-350,-335,-320,-305,-290,-275,-260,-245,-230,-215,-200,-185,-170,-155,-140,-125,-110,-95,-80,-65,-50,-35,-20,20,35,50,65,80,95,110,125,140,155,170,185,200,215,230,245,260,275,290,305,320,335,350,365,380,395,410,425,440,455,470,485,500}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 67, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 66 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 68, the index of the interference cancellation pilot subcarriers is {-498,-483,-468,-453,-438,-423,-408,-393,-378,-363,-348,-333,-318,-303,-288,-273,-258,-243,-228,-213}. -198, -183, -168, -153, -138, -123, -108, -93, -78, -63, -48, -33, -18, -3, 3, 18, 33, 48, 63, 78, 93, 108, 123, 138, 153, 168, 183, 198, 213, 228, 243, 258, 273, 288, 303, 318, 333, 348, 363, 378, 39 3,408,423,438,453,468,483,498} or {-500,-485,-470,-455,-440,-425,-410,-395,-380,-365,-350,-335,-320,-305,-290,-275,-260,-245,-230,-215,-200,-185,-170,-155,-140,-125} ,-110,-95,-80,-65,-50,-35,-20,-5,5,20,35,50,65,80,95,110,125,140,155,170,185,200,215,230,245,260,275,290,305,320,335,350,365,380,395,410,425,440,455,470,485,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 69, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 68. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 70, the index of the interference cancellation pilot subcarriers is {-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-199,-185,-171,-157,-143,-129,-115,-101,-87,-73,-59,-45,-31,-17,-3,3,17,31,45,59,73,87,1}. 01,115,129,143,157,171,185,199,213,227,241,255,269,283,297,311,325,339,353,367,381,395,409,423,437,451,465,479} or {-493,-479,-4 65, -451, -437, -423, -409, -395, -381, -367, -353, -339, -325, -311, -297, -283, -269, -255, -241, -227, -213, -199, -185, -171, -157, -143, -129, -1 15,-101,-87,-73,-59,-45,-31,-17,17,31,45,59,73,87,101,115,129,143,157,171,185,199,213,227,241,255,269,283,297,311,325,339,353 ,367,381,395,409,423,437,451,465,479,493} or {-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-2 62, -248, -234, -220, -206, -192, -178, -164, -150, -136, -122, -108, -94, -80, -66, -52, -38, -24, -10, 10, 24, 38, 52, 66, 80, 94, 108, 122, 136, 150, 16 4,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486} or {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-150,-136,-122,-108,-94,-80,-66,-52,-38,-24,24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 71, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 70 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 72, the index of the interference cancellation pilot subcarriers is {-493,-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-19}. 9, -185, -171, -157, -143, -129, -115, -101, -87, -73, -59, -45, -31, -17, -3, 3, 17, 31, 45, 59, 73, 87, 101, 115, 129, 143, 157, 171, 185, 199, 213, 227, 241, 255, 269, 283, 297, 311, 325, 339, 353, 367, 381, 395 {409,423,437,451,465,479,493} or {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-150,-136,-122} -108,-94,-80,-66,-52,-38,-24,-10,10,24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 73, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 72. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 74, the index of the interference cancellation pilot subcarriers is {-499,-493,-479,-465,-451,-437,-423,-409,-395,-381,-367,-353,-339,-325,-311,-297,-283,-269,-255,-241,-227,-213,-199,-185,-171,} -157, -143, -129, -115, -101, -87, -73, -59, -45, -31, -17, -3, 3, 17, 31, 45, 59, 73, 87, 101, 115, 129, 143, 157, 171, 185, 199, 213, 227, 241, 255, 269, 283, 297, 311, 325, 339, 353, 367, 381, 395, 409, 423, 437, 451, 465, 479, 493 499} or {-500,-486,-472,-458,-444,-430,-416,-402,-388,-374,-360,-346,-332,-318,-304,-290,-276,-262,-248,-234,-220,-206,-192,-178,-164,-150,-136,-122,-108,-94,-80,- 66,-52,-38,-24,-10-4,410,24,38,52,66,80,94,108,122,136,150,164,178,192,206,220,234,248,262,276,290,304,318,332,346,360,374,388,402,416,430,444,458,472,486,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 75, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and the index of the number of interference cancellation pilot subcarriers is 74, with any number from {-10:1:-3,3:1:10} added. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 76, the index of the interference cancellation pilot subcarriers is {-484,-471,-458,-445,-432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,-211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,-68,-55,-42,-29,-16,-3,3,16,2}. 9,42,55,68,81,94,107,120,133,146,159,172,185,198,211,224,237,250,263,276,289,302,315,328,341,354,367,380,393,406,419,432,445, 458,471,484} or {-497,-484,-471,-458,-445,-432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,- 211,-198,-185,-172,-159,-146,-133,-120,-107,-94,-81,-68,-55,-42,-29,-16,16,29,42,55,68,81,94,107,120,133,146,159,172,185,198 ,211,224,237,250,263,276,289,302,315,328,341,354,367,380,393,406,419,432,445,458,471,484,497} or {-487,-474,-461,-448,-435,-422, -409, -396, -383, -370, -357, -344, -331, -318, -305, -292, -279, -266, -253, -240, -227, -214, -201, -188, -175, -162, -149, -136, -123, -110, -97, - 84,-71,-58,-45,-32,-19,-6,6,19,32,45,58,71,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474,487} or {-500,-487,-474,-461,-448,-435,-422,-409,-396,-383,-370,-357,-344,-331,-318,-305,-292,-279,-266,-253,-240,-227,-214,-201,-188,-175,-162,-149,-1 36,-123,-110,-97,-84,-71,-58,-45,-32,-19,19,32,45,58,71,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474,487,500};, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 77, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 76 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 78, the index of the interference cancellation pilot subcarriers is {-497,-484,-471,-458,-445,-432,-419,-406,-393,-380,-367,-354,-341,-328,-315,-302,-289,-276,-263,-250,-237,-224,-211,-198,} -185, -172, -159, -146, -133, -120, -107, -94, -81, -68, -55, -42, -29, -16, -3, 3, 16, 29, 42, 55, 68, 81, 94, 107, 120, 133, 146, 159, 172, 185, 198, 211, 224, 237, 250, 263, 276, 289, 302, 315, 328, 341, 354, 367, 380, 393, 40 6,419,432,445,458,471,484,497} or {-500,-487,-474,-461,-448,-435,-422,-409,-396,-383,-370,-357,-344,-331,-318,-305,-292,-279,-266,-253,-240,-227,-214,-201,-188,-175,-162,-149,-136,-123,- 110,-97,-84,-71,-58,-45,-32,-19,-6,6,19,32,45,58,71,84,97,110,123,136,149,162,175,188,201,214,227,240,253,266,279,292,305,318,331,344,357,370,383,396,409,422,435,448,461,474,487,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 79, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and the index of the number of interference cancellation pilot subcarriers is 78, with any number from {-10:1:-3, 3:1:10} added. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 80, the index of the interference cancellation pilot subcarriers is {-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,- 183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399 ,411,423,435,447,459,471,483} or {-488,-476,-464,-452,-440,-428,-416,-404,-392,-380,-368,-356,-344,-332,-320,-308,-296,-284,-272,-260,-248,-236,-224,-212,-200,-188,-176,-164,-152,-140,-128,-11 6,-104,-92,-80,-68,-56,-44,-32,-20,20,32,44,56,68,80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 81, the index of the interference cancellation pilot subcarriers is 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the number of interference cancellation pilot subcarriers of 80. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 82, the index of the interference cancellation pilot subcarriers is {-495,-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,} -183,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399,4 11,423,435,447,459,471,483,495} or {-488,-476,-464,-452,-440,-428,-416,-404,-392,-380,-368,-356,-344,-332,-320,-308,-296,-284,-272,-260,-248,-236,-224,-212,-200,-188,-176,-164,-152,-140,-128,-116} ,-104,-92,-80,-68,-56,-44,-32,-20,-8,8,20,32,44,56,68,80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 83, the index of the interference cancellation pilot subcarriers is 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 82. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 84, the index of the interference cancellation pilot subcarriers is {-495,-483,-471,-459,-447,-435,-423,-411,-399,-387,-375,-363,-351,-339,-327,-315,-303,-291,-279,-267,-255,-243,-231,-219,-207,-195,-18}. 3,-171,-159,-147,-135,-123,-111,-99,-87,-75,-63,-51,-39,-27,-15,-3,3,15,27,39,51,63,75,87,99,111,123,135,147,159,171,183,195,207,219,231,243,255,267,279,291,303,315,327,339,351,363,375,387,399,411 {423,435,447,459,471,483,495} or {-500,-488,-476,-464,-452,-440,-428,-416,-404,-392,-380,-368,-356,-344,-332,-320,-308,-296,-284,-272,-260,-248,-236,-224,-212,-200,-188,-176,-164,-152,-140,-128,-116,} -104,-92,-80,-68,-56,-44,-32,-20,-8,8,20,32,44,56,68,80,92,104,116,128,140,152,164,176,188,200,212,224,236,248,260,272,284,296,308,320,332,344,356,368,380,392,404,416,428,440,452,464,476,488,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 85, the index of the interference cancellation pilot subcarriers is 80MHz 996-tone RU, and the index of the number of interference cancellation pilot subcarriers is 84, with any number from {-10:1:-3,3:1:10} added. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 86, the index of the interference cancellation pilot subcarriers is {-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179}. -168, -157, -146, -135, -124, -113, -102, -91, -80, -69, -58, -47, -36, -25, -14, 14, 25, 36, 47, 58, 69, 80, 91, 102, 113, 124, 135, 146, 157, 168, 179, 190, 201, 212, 223, 234, 245, 256, 267, 278, 289, 300, 311, 322, 333, 344, 355, 366, 377, 388, 39 9,410,421,432,443,454,465,476} or {-478,-467,-456,-445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148,-137,-126,-115, -104,-93,-82,-71,-60,-49,-38,-27,-16,16,27,38,49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 87, the index of the interference cancellation pilot subcarriers is 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the number of interference cancellation pilot subcarriers of 86. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 88, the index of the interference cancellation pilot subcarriers is {-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179}. -168, -157, -146, -135, -124, -113, -102, -91, -80, -69, -58, -47, -36, -25, -14, 14, 25, 36, 47, 58, 69, 80, 91, 102, 113, 124, 135, 146, 157, 168, 179, 190, 201, 212, 223, 234, 245, 256, 267, 278, 289, 300, 311, 322, 333, 344, 355, 366, 377, 388, 399, 41 0,421,432,443,454,465,476,487} or {-489,-478,-467,-456,-445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148,-137,-126,-115} ,-104,-93,-82,-71,-60,-49,-38,-27,-16,16,27,38,49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 89, the index of the interference cancellation pilot subcarriers is 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 88. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 90, the index of the interference cancellation pilot subcarriers is {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-17}. 9,-168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,42 1,432,443,454,465,476,487,498} or {-500,-489,-478,-467,-456,-445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148,-137,-126,-115} ,-104,-93,-82,-71,-60,-49,-38,-27,-16,16,27,38,49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 91, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 90 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 92, the index of the interference cancellation pilot subcarriers is {-498,-487,-476,-465,-454,-443,-432,-421,-410,-399,-388,-377,-366,-355,-344,-333,-322,-311,-300,-289,-278,-267,-256,-245,-234,-223,-212,-201,-190,-179,- 168,-157,-146,-135,-124,-113,-102,-91,-80,-69,-58,-47,-36,-25,-14,-3,3,14,25,36,47,58,69,80,91,102,113,124,135,146,157,168,179,190,201,212,223,234,245,256,267,278,289,300,311,322,333,344,355,366,377,388,399,410,42 1,432,443,454,465,476,487,498} or {-500,-489,-478,-467,-456,-445,-434,-423,-412,-401,-390,-379,-368,-357,-346,-335,-324,-313,-302,-291,-280,-269,-258,-247,-236,-225,-214,-203,-192,-181,-170,-159,-148,-137,-126,-115,- 104,-93,-82,-71,-60,-49,-38,-27,-16,-5,5,16,27,38,49,60,71,82,93,104,115,126,137,148,159,170,181,192,203,214,225,236,247,258,269,280,291,302,313,324,335,346,357,368,379,390,401,412,423,434,445,456,467,478,489,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 93, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 92. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 94, the index of the interference cancellation pilot subcarriers is {-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-1}. 73,-163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,41 3,423,433,443,453,463,473,483} or {-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-11} 0,-100,-90,-80,-70,-60,-50,-40,-30,-20,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 95, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 94. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 96, the index of the interference cancellation pilot subcarriers is {-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,- 163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-1313,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413 423,433,443,453,463,473,483} or {-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-11} 0,-100,-90,-80,-70,-60,-50,-40,-30,-20,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 97, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the number of interference cancellation pilot subcarriers of 96. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 98, the index of the interference cancellation pilot subcarriers is {-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,} -163,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,42 3,433,443,453,463,473,483,493} or {-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-110,- 100,-90,-80,-70,-60,-50,-40,-30,-20,-10,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 99, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 98. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 100, the index of the interference cancellation pilot subcarriers is {-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-16}. 3,-153,-143,-133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423, 433,443,453,463,473,483,493} or {-500,-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-110,- 100,-90,-80,-70,-60,-50,-40,-30,-20,-10,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 101, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 100. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 102, the index of the interference cancellation pilot subcarriers is {-498,-493,-483,-473,-463,-453,-443,-433,-423,-413,-403,-393,-383,-373,-363,-353,-343,-333,-323,-313,-303,-293,-283,-273,-263,-253,-243,-233,-223,-213,-203,-193,-183,-173,-163,-153,-143}. -133,-123,-113,-103,-93,-83,-73,-63,-53,-43,-33,-23,-13,-3,3,13,23,33,43,53,63,73,83,93,103,113,123,133,143,153,163,173,183 ,193,203,213,223,233,243,253,263,273,283,293,303,313,323,333,343,353,363,373,383,393,403,413,423,433,443,453,463,473,483,493 498} or {-500,-490,-480,-470,-460,-450,-440,-430,-420,-410,-400,-390,-380,-370,-360,-350,-340,-330,-320,-310,-300,-290,-280,-270,-260,-250,-240,-230,-220,-210,-200,-190,-180,-170,-160,-150,-140,-130,-120,-110,-100,-90,-80,-7} 0,-60,-50,-40,-30,-20,-10-5,5,10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240,250,260,270,280,290,300,310,320,330,340,350,360,370,380,390,400,410,420,430,440,450,460,470,480,490,500}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 103, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 102. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 104, the index of the interference cancellation pilot subcarriers is {-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-16}. 5,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,21,30,39,48,57,66,75,84,93,102,111,120,129,138,147,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,41 7,426,435,444,453,462,471,480} or {-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-329,-320,-311,-302,-293,-284,-275,-266,-257,-248,-239,-230,-221,-212,-203,-194,-185,-176,-167,-158,-149,-140,-131,-122,-113} ,-104,-95,-86,-77,-68,-59,-50,-41,-32,-23,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 105, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the interference cancellation pilot subcarriers with a number of 104. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 106, the index of the interference cancellation pilot subcarriers is {-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-16}. 5, -156, -147, -138, -129, -120, -111, -102, -93, -84, -75, -66, -57, -48, -39, -30, -21, 21, 30, 39, 48, 57, 66, 75, 84, 93, 102, 111, 120, 129, 138, 147 ,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,42 6,435,444,453,462,471,480,489} or {-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,- 329, -320, -311, -302, -293, -284, -275, -266, -257, -248, -239, -230, -221, -212, -203, -194, -185, -176, -167, -158, -149, -140, -131, -122, -113 -104, -95, -86, -77, -68, -59, -50, -41, -32, -23, 23, 32, 41, 50, 59, 68, 77, 86, 95, 104, 113, 122, 131, 140, 149, 158, 167, 176, 185, 194, 203, 212, 22 1,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 107, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 106 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 108, the index of the interference cancellation pilot subcarriers is {-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-165,- 156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,12,21,30,39,48,57,66,75,84,93,102,111,120,129,138,1 47,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,417,42 6,435,444,453,462,471,480,489} or {-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356,-347,-338,-3 29, -320, -311, -302, -293, -284, -275, -266, -257, -248, -239, -230, -221, -212, -203, -194, -185, -176, -167, -158, -149, -140, -131, -122, -113, -1 04,-95,-86,-77,-68,-59,-50,-41,-32,-23,-14,14,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,167,176,185,194,203,212, 221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491}; When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 109, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 108 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 110, the index of the interference cancellation pilot subcarriers is {-498,-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,- 165, -156, -147, -138, -129, -120, -111, -102, -93, -84, -75, -66, -57, -48, -39, -30, -21, -12, 12, 21, 30, 39, 48, 57, 66, 75, 84, 93, 102, 111, 120, 129, 138,147,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,408,4 17,426,435,444,453,462,471,480,489,498} or {-500,-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365,-356} -347, -338, -329, -320, -311, -302, -293, -284, -275, -266, -257, -248, -239, -230, -221, -212, -203, -194, -185, -176, -167, -158, -149, -140, -131 -122, -113, -104, -95, -86, -77, -68, -59, -50, -41, -32, -23, -14, 14, 23, 32, 41, 50, 59, 68, 77, 86, 95, 104, 113, 122, 131, 140, 149, 158, 167, 176, 185 ,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446,455,464,473,482,491,500}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 111, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3, 3:1:10} is added to the index of the 110 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 112, the index of the interference cancellation pilot subcarriers is {-498,-489,-480,-471,-462,-453,-444,-435,-426,-417,-408,-399,-390,-381,-372,-363,-354,-345,-336,-327,-318,-309,-300,-291,-282,-273,-264,-255,-246,-237,-228,-219,-210,-201,-192,-183,-174,-1}. 65,-156,-147,-138,-129,-120,-111,-102,-93,-84,-75,-66,-57,-48,-39,-30,-21,-12,-3,3,12,21,30,39,48,57,66,75,84,93,102,111,120, 129,138,147,156,165,174,183,192,201,210,219,228,237,246,255,264,273,282,291,300,309,318,327,336,345,354,363,372,381,390,399,4 08,417,426,435,444,453,462,471,480,489,498} or {-500,-491,-482,-473,-464,-455,-446,-437,-428,-419,-410,-401,-392,-383,-374,-365, -356, -347, -338, -329, -320, -311, -302, -293, -284, -275, -266, -257, -248, -239, -230, -221, -212, -203, -194, -185, -176, -167, -158, -149, -140 -131,-122,-113,-104,-95,-86,-77,-68,-59,-50,-41,-32,-23,-14,-5,5,14,23,32,41,50,59,68,77,86,95,104,113,122,131,140,149,158,16 7,176,185,194,203,212,221,230,239,248,257,266,275,284,293,302,311,320,329,338,347,356,365,374,383,392,401,410,419,428,437,446455,464,473,482,491,500}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 113, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the 112 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 114, the index of the interference cancellation pilot subcarriers is {-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-187,-1}. 79, -171, -163, -155, -147, -139, -131, -123, -115, -107, -99, -91, -83, -75, -67, -59, -51, -43, -35, -27, 27, 35, 43, 51, 59, 67, 75, 83, 91, 99, 107, 115 ,123,131,139,147,155,163,171,179,187,195,203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339,347,355,363, 371,379,387,395,403,411,419,427,435,443,451,459,467,475} or {-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396,-388,-380,-3 72, -364, -356, -348, -340, -332, -324, -316, -308, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, -204, -196, -188, -180, -1 72, -164, -156, -148, -140, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 108, 116, 12 4,132,140,148,156,164,172,180,188,196,204,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 115, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the 114 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 116, the index of the interference cancellation pilot subcarriers is {-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-187,-1 79,-171,-163,-155,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,19,27,35,43,51,59,67,75,83,91,99, 107,115,123,131,139,147,155,163,171,179,187,195,203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339,347,3 55,363,371,379,387,395,403,411,419,427,435,443,451,459,467,475} or {-484,-476,-468,-460,-452,-444,-436,-428,-420,-412,-404,-396, -388, -380, -372, -364, -356, -348, -340, -332, -324, -316, -308, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, -204, -196, -188, -180, -172, -164, -156, -148, -140, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, 28, 36, 44, 52, 60, 68, 76, 84, 92, 10 0,108,116,124,132,140,148,156,164,172,180,188,196,204,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476,484}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 117, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the 116 interference cancellation pilot subcarriers. When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 118, the index of the interference cancellation pilot subcarriers is {-483,-475,-467,-459,-451,-443,-435,-427,-419,-411,-403,-395,-387,-379,-371,-363,-355,-347,-339,-331,-323,-315,-307,-299,-291,-283,-275,-267,-259,-251,-243,-235,-227,-219,-211,-203,-195,-1}. 87,-179,-171,-163,-155,-147,-139,-131,-123,-115,-107,-99,-91,-83,-75,-67,-59,-51,-43,-35,-27,-19,19,27,35,43,51,59,67,75,83,9 1,99,107,115,123,131,139,147,155,163,171,179,187,195,203,211,219,227,235,243,251,259,267,275,283,291,299,307,315,323,331,339, 347,355,363,371,379,387,395,403,411,419,427,435,443,451,459,467,475,483} or {-484,-476,-468,-460,-452,-444,-436,-428,-420,-412,- 404, -396, -388, -380, -372, -364, -356, -348, -340, -332, -324, -316, -308, -300, -292, -284, -276, -268, -260, -252, -244, -236, -228, -220, -212, - 204, -196, -188, -180, -172, -164, -156, -148, -140, -132, -124, -116, -108, -100, -92, -84, -76, -68, -60, -52, -44, -36, -28, -20, 20, 28, 36, 44, 52, 6 0,68,76,84,92,100,108,116,124,132,140,148,156,164,172,180,188,196,204,212,220,228,236,244,252,260,268,276,284,292,300,308,316,324,332,340,348,356,364,372,380,388,396,404,412,420,428,436,444,452,460,468,476,484}；, When the first RU is an 80MHz 996-tone RU and the number of interference cancellation pilot subcarriers is 119, the index of the interference cancellation pilot subcarriers is the 80MHz 996-tone RU, and any number from {-10:1:-3,3:1:10} is added to the index of the 118 interference cancellation pilot subcarriers.

8. The method according to claim 7, characterized in that, The index of the interference cancellation pilot subcarrier of each of the first RUs also includes an index obtained by shifting the aforementioned index to the left and right by a number of index bits, wherein the left and right shift range does not exceed the preset pilot index range of each RU.

9. The method according to any one of claims 1-8, characterized in that, The value of the pilot carried in the interference cancellation pilot subcarrier is at least one of 1, 0, -1.

10. The method according to any one of claims 1-9, characterized in that, The first PPDU includes an Ultra-Reliable Multi-User Physical Layer Protocol Data Unit (UHRMU) PPDU, an Ultra-Reliable Triggered Physical Layer Protocol Data Unit (UHRTB) PPDU, or an Ultra-Reliable Extended Long Distance Physical Layer Protocol Data Unit (UHRERL) PPDU. Wherein, when the first PPDU is a UHR ELR PPDU and is encoded using a low-density parity-check code (LDPC), if the UHR ELR PPDU includes the interference cancellation pilot subcarrier, then the index of the interference cancellation pilot subcarrier is the same as the index of the 52-tone RU in 20MHz.

11. A data transmission method, characterized in that, Applied to site equipment, the method includes: The first PPDU is received by the access point device on the first RU. The first PPDU includes an interference cancellation pilot subcarrier and a data subcarrier. The interference cancellation pilot subcarrier is used for interference estimation, and the data subcarrier is used to carry data information. Interference estimation is performed on the data information based on the interference cancellation pilot subcarrier; The number of interference cancellation pilot subcarriers is determined by the number of subcarriers included in the first RU and a preset ratio. The preset ratio is the ratio of the number of interference cancellation pilot subcarriers to the total number of subcarriers, and the preset ratio ranges from 1% to 15%.

12. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as claimed in any one of claims 1-10, or the method as claimed in claim 11.

13. A readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1-10, or the method as claimed in claim 11.

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