Wireless communication method and device

Abstract

Various schemes related to optimizing distributed tone resource units (dRUs) and distributed tone multi-resource units (dMRUs) for transmission in 6 GHz low-power indoor (LPI) systems are described. A device allocates multiple subcarriers of a resource unit (RU) across an 80 MHz bandwidth or frequency subblock to generate a dRU or dMRU. The device then uses the dRU or dMRU to communicate with a communication entity.

Description

Technical Field

[0001] The present invention relates generally to wireless communications and, more particularly, to optimization of distributed-tone resource unit (dRU) and distributed-tone multi-resource unit (dMRU) designs for transmission in 6 GHz low-power indoor (LPI) systems. Background Art

[0002] Unless otherwise indicated herein, the approaches described in this section are not prior art to the preceding claims and are not admitted to be prior art by inclusion in this section.

[0003] Under the Federal Communications Commission (FCC)'s current regulations for wireless communications in the 2.4 GHz and 5 GHz bands, the equivalent isotropically radiated power (EIRP) limit for power spectral density (PSD) is capped at 20 dBm for 2 MHz transmissions, and the transmit (Tx) power limit is capped at 30 dBm. Under reasonable Tx power assumptions, FCC regulations do not limit Tx power for narrow-bandwidth transmissions. On the other hand, the FCC's requirements for 6 GHz LPI applications are far more stringent than the PSD requirements for the 2.4 GHz and 5 GHz bands. For example, for access point (AP) STAs in the 6 GHz LPI, the EIRP limit is 5 dBm / MHz, while for AP STAs in the 5 GHz band, the EIRP limit is 17 dBm / MHz. Similarly, for non-AP STAs in the 6 GHz LPI, the EIRP limit is -1 dBm / MHz, while for APs in the 5 GHz band, the EIRP limit is 11 dBm / MHz.

[0004] Distributed tone RUs (dRUs) and distributed tone multi-RUs (dMRUs) have been proposed to spread subcarriers or tones across a wider bandwidth to increase transmit power and extend coverage. However, how to optimally allocate subcarriers or tones when constructing dRUs of varying sizes remains to be defined. Therefore, a solution is needed to optimize dRU / dMRU design for transmission in 6 GHz LPI systems. Summary of the Invention

[0005] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce the concepts, highlights, benefits, and advantages of the novel and non-obvious technologies described herein. Selected implementations are further described below in the detailed description. Therefore, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended to be used to determine the scope of the claimed subject matter.

[0006] One of the objectives of the present invention is to provide solutions, concepts, designs, technologies, methods and devices related to optimizing dRU / dMRU design for transmission in 6 GHz LPI system.

[0007] In a first aspect, the present invention provides a wireless communication method, comprising: allocating multiple subcarriers of a resource unit RU on an 80MHz bandwidth or frequency subblock to generate a distributed tone RU dRU or a distributed tone multi-RU dMRU; and communicating with a communication entity using the dRU or the dMRU.

[0008] In some embodiments, the repetition period of the plurality of tones of the dRU or the dMRU is 36, and the plurality of tones of the dRU or the dMRU are allocated via an Orthogonal Frequency Division Multiple Access (OFDMA) tone scheme or a non-OFDMA tone scheme.

[0009] In some embodiments, a repetition period of the plurality of tones of the dRU or the dMRU is 37, and the plurality of tones of the dRU or the dMRU are allocated using a non-OFDMA tone scheme.

[0010] In some embodiments, the dRU or the dMRU is based on a RU having parameters start (r) and l (i) The subcarrier index table is generated, where: RU start (r) represents the first tone index or the starting tone index of the dRU or the dMRU; l (i) represents one or more tones within a repetition distance or a repetition period of the dRU or dMRU; r represents the dRU index; i = mod(k, L) = 0, 1, 2, ..., L–1; k = 0, 1, ..., N st –1; L represents the number of tones of the dRU or dMRU within a repetition distance or a repetition period; N st Indicates the number of subcarriers associated with the dRU or dMRU.

[0011] In some embodiments, the subcarrier index table supports a 484-tone dRU.

[0012] In some embodiments, the dRU comprises a 26-tone dRU, wherein the RU start (r) = {V, V + 1}, and l (i)＝ {0}, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26].

[0013] In some embodiments, the dRU comprises a 52-tone dRU, wherein the RU start (r) = {0, 8, 4, 12, 6, 14, 2, 10, 1, 9, 5, 13, 7, 15, 3, 11}, and l (i)＝ {0,16}.

[0014] In some embodiments, the dRU includes a 106-tone dRU, wherein the RU start (r) ＝ {0,4,6,2,1,5,7,3}, and l (i)＝ {0,8,16,24}.

[0015] In some embodiments, the dRU comprises a 242-tone dRU, wherein the RU start (r) ＝ {0,2,1,3}, and l (i) ={0:4:32}.

[0016] In some embodiments, the dRU comprises a 484-tone dRU, wherein the RU start (r) = {0, 1}, and l (i) ={0:2:34}.

[0017] In some embodiments, the dRU comprises a 26-tone dRU, wherein the RU start (r) = {0, 13, 26, 3, 16, 29, 6, 19, 32, 9, 22, 35, 12, 25, 2, 15, 28, 5, 18, 31, 8, 21, 34, 11, 24, 1, 14, 27, 4, 17, 30, 7, 20, 33, 10, 23}, and l (i) ={0}.

[0018] In some embodiments, the dRU comprises a 52-tone dRU, wherein the RU start (r) ＝ {0,3,6,19,9,12,2,5,18,8,11,1,4,17,20,10}, and:

[0019] For dRU1, dRU4, dRU5, dRU7, dRU9, dRU10, dRU11, dRU12, dRU14, dRU15, and dRU16, (i) ={0,13}; for dRU2, dRU3, dRU6, dRU8, and dRU13, l (i) ={0,23}.

[0020] In some embodiments, the dRU includes a 106-tone dRU, wherein the RU start (r) ＝ {0,6,9,2,8,1,4,10}, and:

[0021] For dRU1, dRU3 and dRU4, l (i) ={0,3,13,26};

[0022] For dRU2 and dRU7, l (i) ={0,13,23,26};

[0023] For dRU5, dRU6 and dRU8, (i) ={0,10,13,23}.

[0024] In some embodiments, the dRU comprises a 242-tone dRU, wherein the RU start (r) ＝ {0,2,1,4}, and:

[0025] For dRU1,l (i) ={0,3,6,13,16,19,26,29,32};

[0026] For dRU2, l (i) ={0,3,7,10,13,20,23,26,33};

[0027] For dRU3,l (i) ={0,7,10,13,17,20,23,30,33};

[0028] Targeting dRU4,l (i) ={0,3,6,13,16,19,23,26,29}.

[0029] In some embodiments, the dRU comprises a 484-tone dRU, wherein the RU start (r) = {0, 1}, and:

[0030] For dRU1,l (i)={0,2,3,5,6,9,12,13,15,16,19,22,25,26,28,29,32,35};

[0031] For dRU2, l (i) ={0,3,6,7,9,10,13,16,17,19,20,22,23,26,29,30,32,33}.

[0032] In some embodiments, the tone distribution pattern of the dRU or the dMRU is center-aligned and DC symmetric.

[0033] In some embodiments, the tone distribution pattern of the dRU or the dMRU is center-aligned and DC asymmetric.

[0034] In some embodiments, the tone distribution pattern of the dRU or the dMRU is edge-aligned and DC-symmetric.

[0035] In some embodiments, the tone distribution pattern of the dRU or the dMRU is edge-aligned and DC-asymmetric.

[0036] In a second aspect, the present invention provides a wireless communication device, comprising: a transceiver configured to perform wireless communication; and a processor coupled to the transceiver and configured to execute the wireless communication method described above.

[0037] It is worth noting that although the description provided herein may be in the context of certain radio access technologies, networks, and network topologies (e.g., Wi-Fi), the concepts, schemes, and any variants / derivatives thereof may be implemented in, for, or by other types of radio access technologies, networks, and network topologies, such as, but not limited to, Bluetooth, ZigBee, Fifth Generation (5G) / New Radio (NR), Long-Term Evolution (LTE), LTE-Advanced, LTE-Advanced Pro, Internet of Things (IoT), Industrial Internet of Things (IIoT), and Narrowband IoT (NB-IoT). Therefore, the scope of the present invention is not limited to the examples described herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate embodiments of the present invention and, together with the detailed description, serve to explain the principles of the present invention. It will be understood that the drawings are not necessarily drawn to scale to clearly illustrate the concepts of the present invention, as some components may be shown out of proportion to their actual dimensions.

[0039] Figure 1 is a schematic diagram of an exemplary network environment in which various solutions and schemes according to the present invention may be implemented.

[0040] Figure 2 is a schematic diagram of an exemplary design under the proposed scheme according to an embodiment of the present invention.

[0041] Figure 3A and Figure 3B Each of them is a schematic diagram showing a corresponding part of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0042] Figure 4A and Figure 4B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0043] Figure 5A and Figure 5B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0044] Figure 6A and Figure 6B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0045] Figure 7A and Figure 7B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0046] Figure 8A and Figure 8B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0047] Figure 9A and Figure 9B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0048] Figure 10A and Figure 10B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0049] Figure 11A and Figure 11B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0050] Figure 12A and Figure 12B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0051] Figure 13A and Figure 13B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0052] Figure 14A and Figure 14B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0053] Figure 15A and Figure 15B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0054] Figure 16A and Figure 16B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0055] Figure 17A and Figure 17B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0056] Figure 18A and Figure 18B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0057] Figure 19A and Figure 19B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0058] Figure 20A and Figure 20B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0059] Figure 21A and Figure 21B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0060] Figure 22A and Figure 22BEach shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0061] Figure 23 is a schematic diagram of an exemplary design under the proposed scheme according to an embodiment of the present invention.

[0062] Figure 24A , Figure 24B and Figure 24C Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0063] Figure 25A , Figure 25B and Figure 25C Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0064] Figure 26 is a schematic diagram of an example scenario under the proposed solution according to an embodiment of the present invention.

[0065] Figure 27 is a schematic diagram of an example scenario under the proposed solution according to an embodiment of the present invention.

[0066] Figure 28A and Figure 28B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0067] Figure 29A , Figure 29B and Figure 29C Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0068] Figure 30A and Figure 30B Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0069] Figure 31A , Figure 31B and Figure 31C Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0070] Figure 32A , Figure 32B and Figure 32C Each shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0071] Figure 33A and Figure 33BEach shows a schematic diagram of a corresponding portion of an exemplary design under a proposed scheme according to an embodiment of the present invention.

[0072] Figure 34 is a block diagram of an example communication system according to an embodiment of the present invention.

[0073] Figure 35 is a flowchart of an example process according to an embodiment of the present invention.

[0074] In the following detailed description, for illustrative purposes, numerous specific details are set forth to enable those skilled in the art to more thoroughly understand the embodiments of the present invention. However, it is apparent that one or more embodiments may be practiced without these specific details, and different embodiments may be combined as needed, and the present invention should not be limited to the embodiments illustrated in the accompanying drawings. DETAILED DESCRIPTION

[0075] The following description is of preferred embodiments of the present invention and is intended only to illustrate the technical features of the present invention and is not intended to limit the scope of the invention. Certain terms are used throughout the specification and claims to refer to specific components. Those skilled in the art will appreciate that manufacturers may use different names for the same components. Therefore, this specification and claims do not distinguish components by name, but rather by functional differences. The terms "component," "system," and "device" used in this invention may refer to entities related to a computer, which may be hardware, software, or a combination of hardware and software. The terms "including" and "comprising" used in the following description and claims are open-ended and should be interpreted as meaning "including, but not limited to..." Furthermore, the term "coupled" refers to an indirect or direct electrical connection. Therefore, when a device is described as being coupled to another device, this means that the device may be directly electrically connected to the other device or indirectly electrically connected to the other device through other devices or connections.

[0076] Overview

[0077] Embodiments according to the present invention relate to various technologies, methods, schemes, and / or solutions related to optimizing dRU / dMRU designs for transmission in 6 GHz LPI systems. According to the present invention, various possible solutions can be implemented individually or in combination. That is, while these possible solutions may be described separately below, two or more of these possible solutions may be implemented in one or more combinations.

[0078] It is worth noting that, in the present invention, a 26-tone regular RU (rRU) may be interchangeably expressed as RU26 (or rRU26), a 52-tone regular RU may be interchangeably expressed as RU52 (or rRU52), a 106-tone regular RU may be interchangeably expressed as RU106 (or rRU106), a 242-tone regular RU may be interchangeably expressed as RU242 (or rRU242), etc. Those skilled in the art will understand the meaning of a regular RU (rRU) and a distributed RU (dRU). For example, a regular RU (rRU) consists of multiple tones that are continuous in the physical frequency domain, while a dRU (distributed RU) consists of multiple tones (or interchangeably referred to as subcarriers) that are discontinuous (i.e., dispersed) in the physical frequency domain. It can be understood that rRU26 refers to a resource unit (RU) allocated with 26 tones and the 26 tones are contiguous, and dRU26 refers to a resource unit (RU) allocated with 26 tones and the 26 tones are dispersed. In addition, a regular multi-RU (MRU) with an aggregate (26+52) tone can be interchangeably expressed as MRU78 (or rMRU78), and a regular MRU with an aggregate (26+106) tone can be interchangeably expressed as MRU132 (or rMRU132), and so on. Furthermore, in the present invention, a 26-tone (represented as "26-tone" or "26-TONE" in the drawings) distributed-tone RU can be interchangeably represented as dRU26, a 52-tone (represented as "52-tone" or "52-TONE" in the drawings) distributed-tone RU can be interchangeably represented as dRU52, a 106-tone (represented as "106-tone" or "106-TONE" in the drawings) distributed-tone RU can be interchangeably represented as dRU106, a 242-tone (represented as "242-tone" or "242-TONE" in the drawings) distributed-tone RU can be interchangeably represented as dRU242, and so on. Furthermore, an aggregate (26+52)-tone distributed-tone MRU can be interchangeably represented as dMRU78, an aggregate (26+106)-tone distributed-tone MRU can be interchangeably represented as dMRU132, and so on. Since the above examples are merely illustrative examples and not an exhaustive list of all possibilities, the same applies to regular RU (rRU), distributed tone RU (dRU), regular MRU (rMRU) and distributed tone MRU (dMRU) of different sizes / dimensions (or different numbers of tones).It is also worth noting that, in the present invention, a 20 MHz bandwidth can be interchangeably represented as BW20 or BW20M, a 40 MHz bandwidth can be interchangeably represented as BW40 or BW40M, an 80 MHz bandwidth can be interchangeably represented as BW80 or BW80M, a 160 MHz bandwidth can be interchangeably represented as BW160 or BW160M, a 240 MHz bandwidth can be interchangeably represented as BW240 or BW240M, and a 320 MHz bandwidth can be interchangeably represented as BW320 or BW320M. It is understood that, in the present invention, an 80 MHz bandwidth (BW80) can also be replaced by an 80 MHz frequency sub-block, for example, two 80 MHz frequency sub-blocks under a 160 MHz bandwidth, and so on. It is also worth noting that, in the present invention, a 26-tone interleaved-tone or interlaced-tone RU can be interchangeably represented as iRU26, a 52-tone interleaved-tone or interlaced-tone RU can be interchangeably represented as iRU52, a 106-tone interleaved-tone or interlaced-tone RU can be interchangeably represented as iRU106, a 242-tone interleaved-tone or interlaced-tone RU can be interchangeably represented as iRU242, and a 484-tone interleaved-tone or interlaced-tone RU can be interchangeably represented as iRU484. Furthermore, the term "frequency segment" is interchangeably referred to herein as "frequency subblock." Furthermore, for simplicity, the term "dRU" can refer to both dRU and dMRU. That is, the "dRU" described herein can refer to both a distributed-tone RU and a distributed-tone multi-RU, and does not specifically refer to a distributed-tone RU.

[0079] Figure 1 An example network environment 100 is shown in which various solutions and approaches according to the present invention may be implemented. Figures 2 to 35 FIG. 1 shows an example implementation of various proposed solutions in a network environment 100 according to the present invention. Figures 1 to 35 , the present invention provides the following description of various proposed solutions.

[0080] refer to Figure 1, a network environment 100 may involve a communication entity 110 and a communication entity 120 communicating wirelessly (e.g., in a WLAN (wireless local area network) according to one or more IEEE (Institute of Electrical and Electronics Engineers) 802.11 standards). For example, the communication entity 110 may be a first station (STA) and the communication entity 120 may be a second STA, wherein each of the first STA and the second STA functions as an AP STA or a non-AP STA. Therefore, as described herein, under various proposed solutions of the present invention, the communication entities 110 and 120 are configured to communicate wirelessly using an optimized dRU / dMRU design according to various proposed solutions of the present invention for transmission in a 6 GHz LPI system.

[0081] Under various proposed schemes according to the present invention, a 26-tone dRU (or dRU26) can be used as a basic building block to generate / produce or otherwise construct dRUs / dMRUs of different sizes based on a hierarchical structure similar to that of a conventional RU (rRU). For example, a 52-tone dRU (or dRU52) can be constructed from two 26-tone dRUs, a 106-tone dRU (or dRU106) can be constructed from two 52-tone dRUs (or four 26-tone dRUs) plus two additional tones, a 242-tone dRU can be constructed from two 106-tone dRUs and one 26-tone dRU plus four additional tones (or nine 26-tone dRUs plus eight additional tones, and so on), and a 484-tone dRU can be constructed from two 242-tone dRUs.

[0082] In the present invention, N p represents the periodicity or repetition period (e.g., in terms of the number of tones). Under various proposed schemes, the above dRU design can be updated or further optimized. For example, N can be changed to p =37 expanded to N p =36. In addition, for N p= 36 can be optimized to achieve the optimal power boost gain for all sizes of dRU and dMRU, thereby increasing the transmit power of the LPI system and thus enhancing the coverage of the LPI system. In addition, for each option of the tone distribution pattern using different tone alignment methods, this paper proposes a tone distribution pattern for N p = 36, such as, but not limited to, edge-aligned and direct current (DC) symmetric tone distribution patterns or center-aligned and DC symmetric tone distribution patterns. Furthermore, the dRU subcarrier index table is updated under various proposed schemes of the present invention.

[0083] Figure 2 An example design 200 of logical RU indexing for BW80 according to the present invention is shown. In design 200, to be consistent with the index notation of conventional RUs, the index 19 of the 26-tone dRU can also be considered "not defined" for the 26-tone dRU. In addition, for a given distribution bandwidth and logical RU size, the tone distribution pattern of the dRU can be generated based on the following formula:

[0084] K td (r,k)=RU start (r)+l (i) +j*N p

[0085] Here, N p Indicates a periodic or repetitive cycle (e.g., in terms of the number of tones); (i) represents the tone distribution pattern within a repetition period (e.g., every two or three tones, and so on, which can also be interchangeably described as “one or more tones within a repetition distance or a repetition period of a dRU or dMRU”); i = mod(k,L) = 0, 1, 2, ..., L–1; j = 0, 1, 2, ..., k=0,1,2,...,N st_ru –1; r=1,2,...,N ru , where r is the logical RU index (also interchangeably referred to herein as the dRU index). (i) ∈Ω ru ={l (0) ,l (1),...,l (L-1)}; L = |Ω ru │; For RU26,RU52,RU106,RU242,RU484,RU996, N st_ru =26,52,106,242,484,996. In addition, RU start (r) indicates dRU r The first tone index or starting tone index of the dRU (i.e., the dRU index is r); (i) Indicates a repetition distance or a repetition period of tone; N p Indicates the repetition distance or repetition period; L indicates the number of tones within a repetition distance or a repetition period; N st_ru N represents the number of subcarriers (or tones) used for the dRU; ru Indicates the number of dRUs for a given dRU size in a given bandwidth. Figure 2 As shown, when distributing dRUs on an 80 MHz bandwidth or frequency sub-block, a maximum of 37 26-tone dRUs can be distributed (r representing the dRU index is an integer between 1 and 37), of which the 26-tone dRU with a dRU index of 19 (dRU 19 , also interchangeably referred to as 26-tone dRUs in the present invention, is "undefined." Therefore, a maximum of 36 26-tone dRUs can actually be generated. For another example, a maximum of 16 52-tone dRUs can be generated in an 80 MHz bandwidth or frequency sub-block (in this case, r is an integer between 1 and 16), or a maximum of 8 106-tone dRUs can be generated, or a maximum of 4 242-tone dRUs can be generated, or a maximum of 2 484-tone dRUs can be generated, and so on. The specific number of dRUs / dMRUs generated can be determined based on actual needs and is not limited in the present invention. For example, although a maximum of 4 242-tone dRUs can be generated, in practice, only one or three 242-tone dRUs can be generated (e.g., dRU1 or dRU1, dRU2, and dRU3). It is understood that in the present invention, dRU2 refers to a dRU with a dRU index r of 2, dRU3 refers to a dRU with an r index of 3, and so on.

[0086] Figure 3A and Figure 3B Each shows a corresponding portion of an example design 300 according to the proposed solution (option 1) of the present invention. According to the design 300, Figure 3A Shown is a list of parameter RUs for different sizes / sizes of dRUs (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484) used on BW80 start(r) and l (i)Table (where N p =36). Design 300 can achieve the best power gain for all dRUs / dMRUs, and each dRU / dMRU can have a repeatable pattern. start (r) can also be calculated as mod(0:13:36*13-1,36). In addition, for the sake of simplicity, the RU of dRU26 start (r) may have a logical RU index (dRU index) r = 1, 2, ..., 36. If r = 19 is considered a "reserved" or "undefined" index, the position may be reserved by inserting some value (such as "NA" or "-1" or other values), e.g., RU start (r) = {0, 13, 26, 3, 16, 29, 6, 19, 32, 9, 22, 35, 12, 25, 2, 15, 28, 5, NA, 18, 31, 8, 21, 34, 11, 24, 1, 14, 27, 4, 17, 30, 7, 20, 33, 10, 23}. This can be applied to other tables in various designs according to the present invention. p =36) are shown in Figure 3B In parts (A), (B) and (C) of the .

[0087] Under the proposed scheme, the formulas and parameters described above can be used to define the basic rules and methods for generating dRU subcarrier indices. Based on the proposed design rules and parameters, there are several alternative ways to express dRU subcarrier indices. In the first alternative, dRU(r,k) = Ω(K td (r, k)), where Ω represents a predefined tone mapping range. For example, for a dRU on BW20, Ω = [-120:-2, 2:120] or [-121:-2, 2:121] or [-122:-2, 2:122]; for a dRU on BW40, Ω = [-244:-3, 3:244] or [-243:-3, 3:243] or other values; for a dRU on BW80, Ω = [-500:-3, 3:500] or [-499:-3, 3:499] or other values. In addition, K td (r,k) can be calculated using the formula and parameters described above, where r is the dRU index and k is the dRU natural subcarrier order, k = 0, 1, .., N st– 1.

[0088] In the second alternative, K td =K td +N guard,left , where, for BW20, N guard,left =6; for BW40, BW80 and BW160, N guard,left =12, N guard,left Indicates the number of guard tones on the left side of the tone distribution pattern. In addition:

[0089]

[0090] Here, for BW20, N DC =3; for BW40, BW80 and BW160, N DC =5, where N DC represents the number of DC tones. Then, K td =K td –(N fft / 2+1) to map positive integers to frequency-domain pitch indices.

[0091] In a third alternative, similar to a regular RU, a dRU subcarrier index may be generated / created and may be represented as Figures 4A to 7B shown.

[0092] Under the proposed scheme, for the 78-tone dMRU (26+52) and 132-tone dMRU (26+106) dMRUs, the distribution tone indices of dMRU78 may include the corresponding distribution subcarrier indices of dRU26 and dRU52, and the distribution tone indices of dMRU132 may include the corresponding distribution subcarrier indices of dRU26 and dRU106. In the description of the present invention, tones are interchangeably denoted as subcarriers, and thus, the distribution tone indices are interchangeably referred to as distribution subcarrier indices.

[0093] Figure 4A and Figure 4B1 and 2 show corresponding portions of an example design 400 according to Option 1 of the present invention. More specifically, in a trigger-based (TB) 80 MHz extremely-high-throughput (EHT) physical-layer protocol data unit (PPDU) for 6 GHz LPI, edge-aligned and DC-symmetric tone distribution patterns can be used for different sizes of DRUs (where N p =36)Generate Figure 4A and Figure 4B The subcarrier indices in the shown table, that is, the generated subcarrier indices are edge-aligned and DC-symmetric.

[0094] Figure 5A and Figure 5B Each shows a corresponding portion of an example design 500 according to the present invention under Option 1. More specifically, in an 80 MHz EHT TB PPDU for 6 GHz LPI, for dRUs of different sizes, Figure 5A and Figure 5B The subcarrier indices in the table shown are those using an edge-aligned but DC-asymmetric tone distribution pattern (where N p =36) generated.

[0095] Figure 6A and Figure 6B Each shows a corresponding portion of an example design 600 according to option 1 of the present invention. More specifically, in an 80 MHz EHT TB PPDU for 6 GHz LPI, for dRUs of different sizes, Figure 6A and Figure 6B The subcarrier indices in the table shown are based on a center-aligned and DC-symmetric tone distribution pattern (where N p =36) generated.

[0096] Figure 7A and Figure 7B Each shows a corresponding portion of an example design 700 according to option 1 of the present invention. More specifically, in an 80 MHz EHT TB PPDU for 6 GHz LPI, for dRUs of different sizes, Figure 7A and Figure 7B The subcarrier indices in the table shown are obtained using a center-aligned but DC-asymmetric tone distribution pattern (where N p =36) generated.

[0097] Figure 8A and Figure 8B Each shows a corresponding portion of an example design 800 according to the proposed solution (option 2) of the present invention. Under design 800, Figure 8A Parameters RU are shown listing different sizes of dRUs on BW80 (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484). start (r) and l (i) Table (where N p =36). Design 800 can achieve optimal power gain for all dRUs / dMRUs (except dMRU132), each dRU / dMRU has a repeatable pattern, and dRU242 and dRU484 are uniformly distributed, making it easy to implement. Figure 8A Part (A) shows one aspect of design 800 that can be implemented when supporting dRU 484, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26]. Figure 8A Part (B) of FIG80 shows one aspect of design 800 that can be implemented when dRU484 is not supported, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 1, 17, 9, 25, 33, 5, 21, 13, 29]. The tone distribution pattern of dRU52, dRU106, dRU242, and dRU484 on BW80 (where N p =36) are shown in Figure 8B In parts (A), (B), (C), and (D) of the dRU 52 and dRU 106 tone distribution patterns, the four rightmost columns correspond to the subcarrier indices of the four middle dRUs 26. Note that the dRU subcarrier index table for the tone distribution pattern under Option 2 can be generated by following the same procedure described above for Option 1.

[0098] Figure 9A and Figure 9B Each shows a corresponding portion of an example design 900 according to the proposed solution (option 3) of the present invention. Under design 900, Figure 9A Parameters RUs are shown listing different sizes of dRUs on BW80 (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484). start (r) and l (i) Table (where Np =36). Applicants have discovered that design 900 can achieve optimal power gain for all dRUs / dMRUs (except dMRU 132), and each dRU / dMRU can have a repeatable pattern. In addition, dRU 242 can have two distribution patterns, and dRU 484 can have one distribution pattern. Figure 9A Part (A) of shows one aspect of design 900 that may be implemented when supporting dRU 484, where V = [0, 18, 8, 26, 16, 4, 22, 12, 30, 2, 20, 10, 28, 34, 6, 24, 4, 32]. Figure 9A Part (B) of FIG. 9 shows an aspect of design 900 that can be implemented when dRU484 is not supported, where V = [0, 18, 8, 26, 16, 4, 22, 12, 30, 1, 19, 9, 27, 17, 5, 23, 13, 31]. The tone distribution patterns of dRU52, dRU106, dRU242, and dRU484 on BW80 (where N p =36) are shown in Figure 9B In parts (A), (B), (C), and (D) of the dRU 52 and dRU 106 tone distribution patterns, the encircled middle two columns and the rightmost two columns may correspond to the subcarrier indices of the middle four dRUs 26. It is worth noting that the same procedure as described above for Option 1 can be followed to generate the dRU subcarrier index table for the tone distribution pattern under Option 3.

[0099] Figure 10A and Figure 10B Each shows a corresponding portion of an example design 1000 according to the proposed solution (option 4) of the present invention. Figure 10A Parameters listed for different sizes of dRUs on BW80 (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484) are shown. start (r) and l (i) Table (where N p =36). Design 1000 can achieve optimal power gain for all dRUs / dMRUs (except dMRU 132), each dRU / dMRU can have a repeatable pattern, and dRU 242 and dRU 484 can have different distribution patterns. Figure 10A Part (A) of shows one aspect of design 1000 that may be implemented when supporting dRU 484, where V = [0, 18, 9, 27, 4, 5, 23, 14, 32, 2, 20, 11, 29, 22, 7, 25, 16, 34]. Figure 10A Part (B) of FIG1000 shows an aspect of design 1000 that can be implemented when dRU484 is not supported, where V = [0, 18, 9, 27, 4, 5, 23, 14, 32, 1, 19, 10, 28, 21, 6, 24, 15, 33]. The tone distribution pattern of dRU52, dRU106, dRU242, and dRU484 on BW80 (where N p =36) are shown in Figure 10B In the tone distribution patterns of dRU52 and dRU106, the four individually circled columns may correspond to the subcarrier indices of the middle four dRU26. It is worth noting that the same procedure as described above for Option 1 can be followed to generate the dRU subcarrier index table for the tone distribution pattern under Option 4.

[0100] Figure 11A and Figure 11B Each shows a corresponding portion of an example design 1100 according to the proposed solution (option 5) of the present invention. According to the design 1100, Figure 11A Parameters RU listed for different sizes of dRUs (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484) on BW80 are shown. start (r) and l (i) Design 1100 can achieve optimal power gain for all dRUs / dMRUs (except dMRU 132 ), with each dRU / dMRU having a repeatable pattern, and dRU 242 and dRU 484 having different distribution patterns. Figure 11A Part (A) shows one aspect of a design 1100 that may be implemented when supporting dRU 484, where V = [0, 18, 9, 27, 8, 4, 22, 13, 31, 2, 20, 11, 29, 26, 6, 24, 15, 33, 1, 19, 10, 28, 17, 5, 23, 14, 32, 3, 21, 12, 30, 35, 7, 25, 16, 34]. Figure 11A Part (B) of FIG11 shows one aspect of a design 1100 that can be implemented when dRU484 is not supported, where V = [0, 18, 9, 27, 8, 4, 22, 13, 31, 1, 19, 10, 28, 17, 5, 23, 14, 32, 2, 20, 11, 29, 26, 6, 24, 15, 33, 3, 21, 12, 30, 35, 7, 25, 16, 34]. The tone distribution patterns for dRU52, dRU106, dRU242, and dRU484 on BW80 (where N p =36) are shown in Figure 11BIn the tone distribution patterns of dRU52 and dRU106, the four individually circled columns may correspond to the subcarrier indices of the middle four dRU26.

[0101] Figure 12A and Figure 12B Each shows a corresponding portion of an example design 1200 according to option 5 of the present invention. More specifically, in an 80 MHz EHT TB PPDU at 6 GHz LPI, for dRUs of different sizes, Figure 12A and Figure 12B The subcarrier indices in the table shown are those using edge-aligned and DC-symmetric tone distribution patterns (where N p =36), where the subcarrier indexes of the 52-tone dRU and the 106-tone dRU are represented by the subcarrier index of the 26-tone dRU based on the dRU hierarchy structure.

[0102] Figure 13A and Figure 13B Each shows a corresponding portion of an example design 1300 according to the present invention under Option 5. More specifically, for 80 MHz EHT TB PPDUs of different sizes for 6 GHz LPI, Figure 13A and Figure 13B The subcarrier indices in the table shown are those using edge-aligned and DC-symmetric tone distribution patterns (where N p =36) generated.

[0103] Figure 14A and Figure 14B Each shows a corresponding portion of an example design 1400 according to the present invention under Option 5. More specifically, for 80 MHz EHT TB PPDUs of different sizes for 6 GHz LPI, Figure 14A and Figure 14B The subcarrier indices in the table shown are those using an edge-aligned but DC-asymmetric tone distribution pattern (where N p =36), where the subcarrier indexes of the 52-tone dRU and the 106-tone dRU are represented by the subcarrier index of the 26-tone dRU based on the dRU hierarchy structure.

[0104] Figure 15A and Figure 15B Each shows a corresponding portion of an example design 1500 according to the present invention under Option 5. More specifically, for 80 MHz EHT TB PPDUs of 6 GHz LPI, different sizes of dRUs are shown. Figure 15A and Figure 15BThe subcarrier indices in the table shown are those using an edge-aligned but DC-asymmetric tone distribution pattern (where N p =36) generated.

[0105] Figure 16A and Figure 16B Each shows a corresponding portion of an example design 1600 according to the present invention under Option 5. More specifically, for 80 MHz EHT TB PPDUs of different sizes for 6 GHz LPI, Figure 16A and Figure 16B The subcarrier indices in the table shown are obtained using a center-aligned and DC-symmetric tone distribution pattern (where N p =36), where the subcarrier indexes of the 52-tone dRU and the 106-tone dRU are represented by the subcarrier index of the 26-tone dRU based on the dRU hierarchy structure.

[0106] Figure 17A and Figure 17B Each shows a corresponding portion of an example design 1700 according to the present invention under Option 5. More specifically, for different sizes of dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, Figure 17A and Figure 17B The subcarrier indices in the table shown are obtained using a center-aligned and DC-symmetric tone distribution pattern (where N p =36) generated.

[0107] Figure 18A and Figure 18B 1 and 2 show corresponding portions of an example design 1800 according to Option 5 of the present invention. More specifically, for different sizes of dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, a center-aligned but DC-asymmetric tone distribution pattern (where N p =36)Generate Figure 18A and Figure 18B The subcarrier indexes in the table are shown, where the subcarrier indexes of the 52-tone dRU and the 106-tone dRU are represented by the 26-tone dRU subcarrier index based on the dRU hierarchy.

[0108] Figure 19A and Figure 19B 5. More specifically, for different sized dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, an edge-aligned but DC-asymmetric tone distribution pattern (where N p =36)Generate Figure 19A and Figure 19BSubcarrier index in the table shown.

[0109] Figure 20A and Figure 20B Each shows a corresponding portion of an example design 2000 according to a proposed solution of the present invention. According to the design 2000, Figure 20A Parameters listed for different sizes of dRUs on BW80 (e.g., dRU26, dRU52, dRU106, dRU242, and dRU484) are shown. start (r) and l (i) The table, where N p =37, and V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26]. Design 2000 achieves optimal power gain for all dRUs / dMRUs, and each dRU / dMRU has a repeatable pattern, making it easy to implement and having a relatively uniform tone distribution pattern. In addition, dRUs of the same size (e.g., dRU26 / 52 / 106 / 242 / 484) can have the same tone distribution pattern. The tone distribution patterns of dRU52, dRU106, dRU242, and dRU484 on BW80 (where N p =37) are shown in Figure 20B In parts (A), (B), (C), and (D) of

[0110] Under the proposed scheme for Design 2000 described above, Figure 21A and Figure 21B Each of the examples shows a corresponding portion of the design 2100. More specifically, for different sizes of dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, an edge-aligned and DC-symmetric tone distribution pattern can be used (where N p =37)Generate Figure 21A and Figure 21B The subcarrier index in the table shown. In the example of Figure 21,

[0111] Under the proposed scheme for Design 2000 described above, Figure 22A and Figure 22B Each of the examples shows a corresponding portion of the design 2200. More specifically, for different sizes of dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, a center-aligned and DC-symmetric tone distribution pattern can be used (where N p =37)Generate Figure 22A and Figure 22B Subcarrier index in the table shown.

[0112] Under certain proposed schemes according to the present invention, for BW80, based on the optimized dRU design described above, a dRU subcarrier index table can be generated for the dRU / dMRU by / utilizing the Orthogonal Frequency Division Multiple Access (OFDMA) tone scheme. For BW40, the dRU subcarrier index table can be updated. For BW20, the dRU subcarrier index table can be updated, and alternative dRU design parameters can be used, and the dRU subcarrier index table can be generated according to the proposed scheme described below. It is worth noting that in the dRU subcarrier index table, four 26-tone dRUs are equivalent to two 52-tone dRUs (e.g., 26-tone dRU1-dRU4 can be considered the same as 52-tone dRU1-dRU2, 26-tone dRU6-dRU9 can be considered the same as 52-tone dRU3-dRU4, and so on). Therefore, the dRU subcarrier index of a 106-tone dRU can be represented by four 26-tone dRUs (or two 52-tone dRUs) plus two additional tones.

[0113] Figure 23 An example design 2300 according to the proposed scheme of the present invention is shown. For BW80 in IEEE 802.11be, the tone distribution range of the OFDMA tone scheme can be [-500:-259, -253:-12, 12:253, 259:500], and [-258:-254, -11:11, 254:258] can be considered as a null subcarrier or DC tone. In addition, for BW80 in IEEE 802.11be, the tone distribution range of the non-OFDMA tone scheme or the 996-tone RU tone scheme can be [-500:-3, 3:500], and the five tones [-2:2] can be used as the DC tone. As described above, a dRU subcarrier index table can be generated for dRUs allocated by the non-OFDMA tone scheme for BW80. Under the proposed scheme described below, the optimized dRU design (options 1 to 5, where N p =36) The tones may be allocated via an OFDMA tone scheme or a non-OFDMA tone scheme, and the dRU subcarrier index table may be generated accordingly.

[0114] Figure 24A , Figure 24B and Figure 24C 2400 according to an embodiment of the present invention. More specifically, for different sizes of dRUs in an 80 MHz EHT TBPPDU at 6 GHz LPI, an edge-aligned and DC-symmetric OFDMA tone distribution pattern (where N p =36)Generate Figure 24A, Figure 24B and Figure 24C Subcarrier index in the table shown.

[0115] Figure 25A , Figure 25B and Figure 25C 2 and 3 show schematic diagrams of corresponding portions of an exemplary design 2500 according to a proposed scheme according to an embodiment of the present invention. More specifically, for different sizes of dRUs in an 80 MHz EHT TB PPDU at 6 GHz LPI, a center-aligned and DC-symmetric OFDMA tone distribution pattern (where N p =36)Generate Figure 25A , Figure 25B and Figure 25C Subcarrier index in the table shown.

[0116] Figure 26 FIG26 shows an example scenario 2600 under the proposed scheme according to an embodiment of the present invention. More specifically, the scenario 2600 shows a non-OFDMA tone scheme (where N p =36) allocated by dRU 242 (dRU index is 1) on BW80 (with 4 tones in 1 MHz).

[0117] Figure 27 FIG27 shows an example scenario 2700 under the proposed scheme according to an embodiment of the present invention. More specifically, the scenario 2700 shows an OFDMA tone scheme (where N p =36) assigned to the tone distribution of dRU242 on BW80.

[0118] Figure 28A and Figure 28B 2 and 3 show schematic diagrams of respective portions of an exemplary design 2800 under the proposed scheme according to an embodiment of the present invention. In particular, with a center-aligned and DC-symmetric tone distribution pattern, Figure 28A The updated dRU data and pilot subcarrier index tables are shown for BW40. In addition, using the center-aligned and DC-symmetric tone distribution pattern, Figure 28B Another updated dRU data and pilot subcarrier index table is shown for BW40.

[0119] Figure 29A , Figure 29B and Figure 29C 2 and 3 show schematic diagrams of respective portions of an exemplary design 2900 under the proposed scheme according to an embodiment of the present invention. In particular, with a center-aligned and DC-symmetric tone distribution pattern, Figure 29AThe updated dRU data and pilot subcarrier index table is shown for BW20, and more DC tones (e.g., seven DC tones) are retained. In addition, a center-aligned and DC-symmetric tone distribution pattern is used. Figure 29B Another updated dRU data and pilot subcarrier index table is shown for BW20, and more DC tones (e.g., five DC tones) are retained. In addition, edge-aligned and DC-symmetric tone distribution patterns are used. Figure 29C Another updated dRU data and pilot subcarrier index table is shown for BW20, where the first left tone = -121 and there are five DC tones.

[0120] Figure 30A and Figure 30B Each shows a corresponding portion of an example design 3000 under the proposed scheme according to the present invention. According to the design 3000, Figure 30A Parameters RU for different sizes of dRUs (e.g., dRU26, dRU52, and dRU106) on BW20 are shown. start(r) and l (i) The table listed (where N p =9). The tone distribution patterns of dRU26, dRU52 and dRU106 on BW20 are as follows: Figure 30B As shown in parts (A), (B) and (C) of .

[0121] Figure 31A , Figure 31B and Figure 31C 3100 according to an embodiment of the present invention. In particular, using edge-aligned and DC-symmetric tone distribution patterns, Figure 31A The updated dRU data and pilot subcarrier index table for BW20 is shown, where the first left tone = -120 and there are three DC tones. In addition, with edge-aligned and DC-symmetric tone distribution patterns, Figure 31B Another updated dRU data and pilot subcarrier index table for BW20 is shown, where the first left tone = -121 and there are five DC tones. In addition, with edge-aligned and DC-symmetric tone distribution patterns, Figure 31C Another updated dRU data and pilot subcarrier index table for BW20 is shown, where the first left tone = -122 and there are seven DC tones.

[0122] Figure 32A , Figure 32B and Figure 32C3200 according to an embodiment of the present invention. In particular, with a center-aligned and DC-symmetric tone distribution pattern, Figure 32A The updated dRU data and pilot subcarrier index table for BW20 (with three DC tones) is shown. In addition, using a center-aligned and DC-symmetric tone distribution pattern (with five DC tones), Figure 32B Another updated dRU data and pilot subcarrier index table for BW20 is shown. In addition, using a center-aligned and DC-symmetric tone distribution pattern, Figure 32C Another updated dRU data and pilot subcarrier index table for BW20 (with seven DC tones) is shown.

[0123] Figure 33A and Figure 33B 3300 according to an embodiment of the present invention. In particular, using edge-aligned and DC-symmetric tone distribution patterns, Figure 33A The updated dRU data and pilot subcarrier index table for BW20 is shown (where the first left tone = -120 and there are three DC tones). In addition, with a center-aligned and DC-symmetric tone distribution pattern, Figure 33B Another updated dRU data and pilot subcarrier index table (with three DC tones) for BW20 is shown.

[0124] Illustrative Embodiments

[0125] Figure 34 An example system 3400 is shown, including at least an example apparatus 3410 and an example apparatus 3420, according to an embodiment of the present invention. Each of apparatus 3410 and apparatus 3420 can perform various functions to implement the schemes, techniques, processes, and methods described herein related to optimizing dRU / dMRU for transmission in a 6 GHz LPI system, including the various proposed designs, concepts, schemes, systems, and methods described above and the processes described below. For example, apparatus 3410 can be an example implementation of communication entity 110, and apparatus 3420 can be an example implementation of communication entity 120.

[0126] Each of device 3410 and device 3420 can be part of an electronic device, which can be a STA or AP, such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, each of device 3410 and device 3420 can be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing device such as a tablet, laptop, or notebook computer. Each of device 3410 and device 3420 can also be part of a machine-type device, which can be an Internet of Things (IoT) device, such as a fixed or non-mobile device, a home appliance, a wired communication device, or a computing device. For example, each of device 3410 and device 3420 can be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. When implemented in or as a network device, device 3410 and / or device 3420 can be implemented in a network node, such as an AP in a WLAN.

[0127] In some embodiments, each of the apparatus 3410 and the apparatus 3420 may be implemented in the form of one or more integrated circuit (IC) chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set computing (CISC) processors. In the various schemes described above, each of the apparatus 3410 and the apparatus 3420 may be implemented in or as a STA or an AP. Each of the apparatus 3410 and the apparatus 3420 may include Figure 34 , such as processor 3412 and processor 3422, respectively. Each of apparatus 3410 and apparatus 3420 may also include one or more other components not related to the proposed solution of the present invention (e.g., an internal power supply, a display device and / or a user interface device), and therefore, for simplicity, such components of apparatus 3410 and apparatus 3420 are not shown in FIG. Figure 34 is not shown in the figure and is not described below.

[0128] In one aspect, each of processor 3412 and processor 3422 can be implemented in the form of one or more single-core processors, one or more multi-core processors, one or more RISC processors, or one or more CISC processors. That is, even though the singular term "processor" is used herein to refer to processor 3412 and processor 3422, each of processor 3412 and processor 3422 may include multiple processors in some embodiments and a single processor in other embodiments. On the other hand, each of processor 3412 and processor 3422 can be implemented in the form of hardware (and optionally, firmware) having electronic components, including, for example, but not limited to, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors, and / or one or more varactors configured and arranged to achieve a specific purpose in accordance with the present invention. In other words, in at least some embodiments, each of processor 3412 and processor 3422 is a dedicated machine specifically designed, arranged, and configured to perform specific tasks, including those tasks related to optimizing dRU / dMRU for transmission in a 6 GHz LPI system in accordance with various embodiments of the present invention. For example, each of processor 3412 and processor 3422 may be configured with hardware components or circuitry to implement one, some, or all of the examples described and illustrated herein.

[0129] In some embodiments, the device 3410 may further include a transceiver 3416 coupled to the processor 3412. The transceiver 3416 may be capable of wirelessly transmitting and receiving data. In some embodiments, the device 3420 may further include a transceiver 3426 coupled to the processor 3422. The transceiver 3426 may include a transceiver capable of wirelessly transmitting and receiving data.

[0130] In some embodiments, the device 3410 may further include a memory 3414 coupled to the processor 3412 and accessible by the processor 3412, and storing data therein. In some embodiments, the device 3420 may further include a memory 3424 coupled to the processor 3422 and accessible by the processor 3422, and storing data therein. Each of the memory 3414 and the memory 3424 may include a type of random-access memory (RAM), such as dynamic RAM (DRAM), static RAM (SRAM), thyristor RAM (T-RAM), and / or zero-capacitor RAM (Z-RAM). Alternatively or additionally, each of memory 3414 and memory 3424 may include a type of read-only memory (ROM), such as mask ROM, programmable ROM (PROM), erasable programmable ROM (EPROM), and / or electrically erasable programmable ROM (EEPROM). Alternatively or additionally, each of memory 3414 and memory 3424 may include a type of non-volatile random-access memory (NVRAM), such as flash memory, solid-state memory, ferroelectric RAM (FeRAM), magnetoresistive RAM (MRAM), and / or phase-change memory.

[0131] Each of apparatus 3410 and apparatus 3420 may be a communication entity capable of communicating with each other using various proposed schemes according to the present invention. For illustrative purposes and not limitation, a description of the capabilities of apparatus 3410 as communication entity 110 and apparatus 3420 as communication entity 120 is provided below. It is worth noting that while the example embodiments described below are provided in the context of a WLAN, they may also be implemented in other types of networks. Therefore, while the following description of the example embodiments pertains to a scenario in which apparatus 3410 acts as a transmitting device and apparatus 3420 acts as a receiving device, the same applies to another scenario in which apparatus 3410 acts as a receiving device and apparatus 3420 acts as a transmitting device.

[0132] According to the solution proposed in the present invention regarding optimization of dRU / dMRU design for transmission in a 6 GHz LPI system, processor 3412 of device 3410 can allocate multiple subcarriers of an RU over an 80 MHz bandwidth, frequency segment, or frequency subblock to generate a dRU or dMRU. Furthermore, processor 3412 can utilize the dRU or dMRU to communicate with a communication entity (e.g., device 3420) via transceiver 3416.

[0133] In some embodiments, the repetition period of the multiple tones of a dRU or dMRU can be 36. In this case, the multiple tones of the dRU or dMRU can be allocated using an OFDMA tone scheme or a non-OFDMA tone scheme. Alternatively, the repetition period of the multiple tones of a dRU or dMRU can be 37. In this case, the multiple tones of the dRU or dMRU can be allocated using a non-OFDMA tone scheme.

[0134] In some implementations, the RU start (r) and l (i) The subcarrier index table generates dRU or dMRU. In this case, RU start (r) represents the first tone index or starting tone index of dRU or dMRU; l (i) represents one or more tones within a repetition distance or a repetition period of a dRU or dMRU; r represents the dRU index; i = mod(k,L) = 0, 1, 2, ..., L–1; k = 0, 1, ..., N st –1; L represents the number of tones in a dRU or dMRU repetition distance or a repetition period; N st Indicates the number of subcarriers associated with a dRU or dMRU (e.g., for Dru26, N st =26).

[0135] In some embodiments, a 484-tone dRU is supported in the subcarrier index table. In some embodiments, the dRU may include a 26-tone dRU, where the RU start (r)={V,V+1} and l (i) = {0}, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26]. Alternatively, the dRU may include a 52-tone dRU, where RU start (r) = {0, 8, 4, 12, 6, 14, 2, 10, 1, 9, 5, 13, 7, 15, 3, 11}, and l (i) ={0,16}. Alternatively, the dRU may include a 106-tone dRU, where RUstart (r) = {0, 4, 6, 2, 1, 5, 7, 3}, and l (i) ={0,8,16,24}. Alternatively, the dRU may include a 242-tone dRU, where RU start (r) = {0, 2, 1, 3}, and l(i) = {0:4:32}. Alternatively, the dRU may include a 484-tone dRU, where RU start (r) = {0, 1}, and l (i) ={0:2:34}.

[0136] In some embodiments, the dRU may include a 26-tone dRU, where the RU start (r) = {0, 13, 26, 3, 16, 29, 6, 19, 32, 9, 22, 35, 12, 25, 2, 15, 28, 5, 18, 31, 8, 21, 34, 11, 24, 1, 14, 27, 4, 17, 30, 7, 20, 33, 10, 23} and l (i) ={0}. Optionally, the dRU may include a 52-tone dRU, where RU start (r) = {0, 3, 6, 19, 9, 12, 2, 5, 18, 8, 11, 1, 4, 17, 20, 10}, and, for dRU1, dRU4, dRU5, dRU7, dRU9, dRU10, dRU11, dRU12, dRU14, dRU15, and dRU16, l(i) = {0, 13}; and / or, for dRU2, dRU3, dRU6, dRU8, and dRU13, l (i) ={0,23}. It should be noted here that, in the present invention, 26-tone dRU, 52-tone dRU, 106-tone dRU, etc. can also be directly referred to as dRU. Furthermore, dRU1 represents a dRU with a dRU index of 1, dRU2 represents a dRU with a dRU index of 2, ..., dRU16 represents a dRU with a dRU index of 16, and so on. Taking 52-tone dRU as an example, a person skilled in the art should understand that a maximum of 16 52-tone dRUs can be generated on an 80M bandwidth or frequency sub-block, which can be represented as dRU1, dRU2, dRU3, ..., dRU16, respectively. Thus, the parameter RU representing the first tone index or starting tone index of these 16 dRUs is start (r) will include 16 values ​​(r is an integer between 1 and 16). The specific number of 52-tone dRUs generated can be determined according to actual needs, and the present invention does not limit this (but at most 16 at 80MHz). For example, Figure 3A and Figure 3B In the embodiment shown, the parameter RU start(r) = {0, 3, 6, 19, 9, 12, 2, 5, 18, 8, 11, 1, 4, 17, 20, 10}. It should be understood by those skilled in the art that the value 0 in this parameter represents the first tone index (or interchangeably referred to as the starting tone index) of the dRU with a dRU index r of 1, the value 3 represents the first tone index of the dRU with a dRU index r of 2, the value 6 represents the first tone index of the dRU with a dRU index r of 3, the value 19 represents the first tone index of the dRU with a dRU index r of 4, and so on. The value 10 represents the first tone index of the dRU with a dRU index r of 16. Further, in Figure 3A and Figure 3B In the embodiment shown, for parameter l (i) , for dRU1, dRU4, dRU5, dRU7, dRU9, dRU10, dRU11, dRU12, dRU14, dRU15, and dRU16, l (i) ={0,13}; for dRU2, dRU3, dRU6, dRU8 and dRU13, l (i) ={0,23}. Therefore, when a dRU with a dRU index of r is to be generated, the corresponding parameters corresponding to the dRU index r are used. For example, if a 52-tone dRU with a dRU index of 5 (also interchangeably referred to as "dRU5") is to be generated, the parameters corresponding to the dRU index of 5 are used. start = {9} and l(i) = {0,13} to generate dRU5; For another example, if a 52-tone dRU with a dRU index of 3 (also interchangeably referred to as "dRU3") is to be generated, the parameter RU corresponding to the dRU index r of 3 is used. start = {6} and l(i) = {0, 23}, and so on. Optionally, the dRU may include a 106-tone dRU, where RU start (r) = {0, 6, 9, 2, 8, 1, 4, 10}, and: for dRU1, dRU3, and dRU4, l (i) ={0,3,13,26}; for dRU2 and dRU7, l (i) ={0,13,23,26}, and / or, for dRU5, dRU6 and dRU8, l (i) ={0,10,13,23}. Optionally, the dRU may include a 242-tone dRU, where RU start (r) = {0, 2, 1, 4}, and: for dRU1, l (i) ={0,3,6,13,16,19,26,29,32}; for dRU2, l (i)={0,3,7,10,13,20,23,26,33}; for dRU3, l (i) ={0,7,10,13,17,20,23,30,33}; and / or, for dRU4, l (i) ={0,3,6,13,16,19,23,26,29}. Optionally, the dRU may include a 484-tone dRU, where RU start (r) = {0, 1}, and: for dRU1, l (i) ={0,2,3,5,6,9,12,13,15,16,19,22,25,26,28,29,32,35}, and / or, for dRU2, l (i) ={0,3,6,7,9,10,13,16,17,19,20,22,23,26,29,30,32,33}.

[0137] In some embodiments, the tone distribution pattern of the dRU or dMRU is center-aligned and DC-symmetric. Alternatively, the tone distribution pattern of the dRU or dMRU is center-aligned and DC-asymmetric. Alternatively, the tone distribution pattern of the dRU or dMRU is edge-aligned and DC-symmetric. Alternatively, the tone distribution pattern of the dRU or dMRU is edge-aligned and DC-asymmetric.

[0138] Illustrative Process

[0139] Figure 35 An example process 3500 is shown according to an embodiment of the present invention. Process 3500 may represent one aspect of implementing the various proposed designs, concepts, schemes, systems, and methods described above. More specifically, process 3500 may represent one aspect of the proposed concepts and schemes related to optimizing dRU / dMRU designs for transmission in 6 GHz LPI systems according to the present invention. Process 3500 may include one or more operations, actions, or functions as shown in one or more of blocks (or interchangeably referred to as "steps") 3510 and 3520. Although shown as discrete blocks, the various blocks of process 3500 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. In addition, the blocks / sub-blocks of process 3500 may be arranged in Figure 353500. The process 3500 may be performed in the order shown, or in a different order. In addition, one or more of the blocks / subblocks of process 3500 may be repeated or performed repeatedly. Process 3500 may be implemented by or in apparatus 3410 and apparatus 3420, and any variants thereof. For illustrative purposes only and without limiting the scope, process 3500 is described below in the context of apparatus 3410 acting as a communication entity 110 (e.g., a transmitting device of a STA or AP) and apparatus 3420 acting as a receiving device 120 (e.g., a receiving device of a STA or AP) in a wireless network (e.g., a WLAN) in accordance with one or more IEEE 802.11 standards. Process 3500 may begin at block 3510.

[0140] At 3510 , process 3500 may include processor 3412 of apparatus 3410 allocating a plurality of subcarriers of the RU to generate a dRU or dMRU on an 80 MHz frequency segment or subblock.

[0141] At 3520 , process 3500 may include processor 3412 communicating with a communication entity (eg, device 3420 ) via transceiver 3416 using the dRU or dMRU.

[0142] In some embodiments, the repetition period of the multiple tones of the dRU or dMRU is 36. In this case, the multiple tones of the dRU or dMRU may be allocated using an OFDMA tone scheme or a non-OFDMA tone scheme. Alternatively, the repetition period of the multiple tones of the dRU or dMRU is 37. In this case, the multiple tones of the dRU or dMRU are allocated using a non-OFDMA tone scheme.

[0143] In some embodiments, a dRU or dMRU may be based on a RU with parameters start (r) and l (i) In this case, RU start (r) may represent the first or starting tone index of a dRU or dMRU; l (i) It can represent one or more tones of a dRU or dMRU within a repetition distance or a repetition period; r can represent the dRU index; i = mod(k,L) = 0, 1, 2, ..., L–1; k = 0, 1, ..., N st –1; L can represent the number of dRU or dMRU tones within a repetition distance or a repetition period; N st It can indicate the number of subcarriers associated with a dRU or dMRU.

[0144] In some implementations, a 484-tone dRU is supported in the subcarrier index table. In some embodiments, the dRU may include a 26-tone dRU, where the RU start (r)={V,V+1} and l (i) = {0}, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26]. Alternatively, the dRU may include a 52-tone dRU, where RU start (r) = {0, 8, 4, 12, 6, 14, 2, 10, 1, 9, 5, 13, 7, 15, 3, 11} and l (i) ={0,16}. Alternatively, the dRU may include a 106-tone dRU, where RU start (r) = {0, 4, 6, 2, 1, 5, 7, 3} and l (i) ={0,8,16,24}. Alternatively, the dRU may include a 242-tone dRU, where RU start (r) = {0, 2, 1, 3} and l(i) = {0:4:32}. Alternatively, the dRU may include a 484-tone dRU, where RU start (r)={0,1} and l (i) ={0:2:34}.

[0145] In some embodiments, the dRU may include a 26-tone dRU, where the RU start (r) = {0, 13, 26, 3, 16, 29, 6, 19, 32, 9, 22, 35, 12, 25, 2, 15, 28, 5, 18, 31, 8, 21, 34, 11, 24, 1, 14, 27, 4, 17, 30, 7, 20, 33, 10, 23} and l (i) ={0}. Optionally, the dRU may include a 52-tone dRU, where RU start (r) = {0, 3, 6, 19, 9, 12, 2, 5, 18, 8, 11, 1, 4, 17, 20, 10}, and, for dRU1, dRU4, dRU5, dRU7, dRU9, dRU10, dRU11, dRU12, dRU14, dRU15, and dRU16, l(i) = {0, 13}; and / or, for dRU2, dRU3, dRU6, dRU8, and dRU13, l (i) ={0,23}. Optionally, the dRU may include a 106-tone dRU, where RU start (r) = {0, 6, 9, 2, 8, 1, 4, 10}, and: for dRU1, dRU3, and dRU4, l (i)={0,3,13,26}; and / or, for dRU2 and dRU7, l (i) ={0,13,23,26}; and / or, for dRU5, dRU6 and dRU8, l (i) ={0,10,13,23}. Optionally, the dRU may include a 242-tone dRU, where RU start (r) = {0, 2, 1, 4}, and: for dRU1, l (i) ={0,3,6,13,16,19,26,29,32}; and / or, for dRU2, l (i) ={0,3,7,10,13,20,23,26,33}; and / or, for dRU3, l (i) ={0,7,10,13,17,20,23,30,33}; and / or, for dRU4, l (i) ={0,3,6,13,16,19,23,26,29}. Optionally, the dRU may include a 484-tone dRU, where RU start (r) = {0, 1}, and: for dRU1, l (i) ={0,2,3,5,6,9,12,13,15,16,19,22,25,26,28,29,32,35}, and / or, for dRU2, l (i) ={0,3,6,7,9,10,13,16,17,19,20,22,23,26,29,30,32,33}.

[0146] In some embodiments, the tone distribution pattern of the dRU or dMRU can be center-aligned and DC-symmetric. Alternatively, the tone distribution pattern of the dRU or dMRU can be center-aligned and DC-asymmetric. Alternatively, the tone distribution pattern of the dRU or dMRU can be edge-aligned and DC-symmetric. Alternatively, the tone distribution pattern of the dRU or dMRU can be edge-aligned and DC-asymmetric.

[0147] Additional Notes

[0148] The subject matter described herein sometimes illustrates different components contained within or connected to other different components. It should be understood that the architecture depicted in this manner is merely an example, and in fact many other architectures can be implemented to achieve the same functionality. In a conceptual sense, any component arrangement that achieves the same functionality is effectively "associated" so as to achieve the desired functionality. Therefore, any two components combined here to achieve a particular functionality can be considered to be "associated" with each other so as to achieve the desired functionality, regardless of the architecture or intermediate components. Similarly, any two components so associated can also be considered to be "operably connected" or "operably coupled" to each other to achieve the desired functionality, and any two components that can be so associated can also be considered to be "operably coupled" to each other to achieve the desired functionality. Specific examples of operable coupling include, but are not limited to, physically pairable and / or physically interacting components and / or wirelessly interactive and / or wirelessly interactive components and / or logically interacting and / or logically interacting components.

[0149] Furthermore, with respect to the use of substantially any plural and / or singular terms herein, those skilled in the art can translate from the plural to the singular and / or from the singular to the plural as appropriate to the context and / or application. For clarity, various singular / plural permutations may be expressly set forth herein.

[0150] In addition, one skilled in the art will understand that the terms used herein, and particularly in the appended claims, such as the bodies of the appended claims, are generally intended to be "open-ended" terms, e.g., the term "including" should be interpreted as "including but not limited to," the term "comprising" should be interpreted as "including but not limited to," the term "having" should be interpreted as "having at least," etc. One skilled in the art will further understand that if a specific number of an introduced claim element is intended, such intent will be expressly recited in the claim, and in the absence of such recitation, such intent is absent. For example, to aid understanding, the appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim elements. However, the use of such phrases should not be construed to imply that a claim element introduced by the indefinite article "a" or "an" limits any particular claim containing such introduced claim element to containing only one such element, even when the same claim contains the introductory phrases "one or more" or "at least one" and an indefinite article such as "a" or "an," e.g., "a" and / or "an" should be construed to mean "at least one" or "one or more," and the same applies to the use of the definite article used to introduce a claim element. Furthermore, even if a specific number of an introduced claim element is expressly recited, one of ordinary skill in the art will recognize that such a statement should be construed to mean at least the recited number, e.g., the recitation "two elements" without other modifiers means at least two elements or two or more elements. Furthermore, where the phrase "at least one of A, B, and C, etc." is used, such a construction is generally used for the purposes thereof, and one having ordinary skill in the art will understand the convention, for example, "the system has at least one of A, B, and C" will include but is not limited to the system having A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. Where the phrase "at least one of A, B, or C, etc." is used, such a construction is generally used for the purposes thereof, and one having ordinary skill in the art will understand the convention, for example, "the system has at least one of A, B, or C" will include but is not limited to the system having A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. One having ordinary skill in the art will further understand that any transitional words and / or phrases that actually denote two or more alternatives, whether in the specification, claims, or drawings, should be understood to contemplate the possibility of including one of the multiple terms, any of the multiple terms, or both terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B."

[0151] It will be appreciated that various embodiments of the present invention have been described herein for illustrative purposes and that various modifications may be made without departing from the scope and spirit of the present invention. Therefore, the various embodiments disclosed herein are not intended to be limiting, and the true scope and spirit of the present invention are to be determined by the appended claims.

[0152] The use of ordinal terms such as "first," "second," "third," etc. in the claims to modify claim elements does not, in itself, indicate any priority, precedence, or order of one claim element with respect to another claim element, or a temporal order for performing method actions, but serves solely as a marker to distinguish one claim element with the same name from another element with the same name using ordinal numbers.

[0153] Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications may be made to the present invention without departing from the spirit of the present invention and the scope defined by the claims. For example, new embodiments may be derived by combining parts of different embodiments. The described embodiments are for illustrative purposes only and are not intended to limit the present invention in all respects. The scope of protection of the present invention shall be as defined by the appended claims. Those skilled in the art will make minor changes and modifications without departing from the spirit and scope of the present invention.

Claims

1. A wireless communication method, characterized in that: include: Allocate multiple subcarriers of a resource unit RU over an 80 MHz bandwidth or frequency subblock to generate a distributed tone RU dRU; as well as Communicating with a communication entity using the dRU; The dRU is based on the RU parameter start (r) and l (i) The subcarrier index table is generated, and the tone distribution pattern of the dRU is generated based on the following formula: K td (r,k)=RU start (r)+l (i) +j*N p ; in: RU start (r) represents the first tone index or starting tone index of the dRU; l (i) One or more tones representing the dRU within a repetition distance or a repetition period; N p It indicates a periodic or recurring cycle; r represents the dRU index; i=mod(k,L)=0,1,2,...,L–1; k=0,1,...,N st_ru –1; L represents the number of tones of the dRU within a repetition distance or a repetition period; N st_ru Indicates the number of subcarriers associated with the dRU; The dRU includes 106 tone dRUs, where RU start (r) = {0, 6, 9, 2, 8, 1, 4, 10}, and for dRU1, dRU3, and dRU4, l (i) ={0,3,13,26}.

2. The method according to claim 1, wherein The plurality of tones of the dRU have a repetition period of 36, and the plurality of tones of the dRU are allocated through an orthogonal frequency division multiple access (OFDMA) tone scheme or a non-OFDMA tone scheme.

3. The method according to claim 1, wherein The repetition period of the plurality of tones of the dRU is 37, and the plurality of tones of the dRU are allocated by a non-OFDMA tone scheme.

4. The method according to claim 1, wherein The dRU includes a distributed tone multi-RU dMRU.

5. The method according to claim 1, wherein The subcarrier index table supports 484-tone dRUs.

6. The method according to claim 5, wherein The dRU also includes a 26-tone dRU, where the RU start (r) = {V, V + 1}, and l (i)＝ {0}, where V = [0, 16, 8, 24, 32, 4, 20, 12, 28, 6, 22, 14, 30, 34, 2, 18, 10, 26].

7. The method according to claim 5, wherein The dRU also includes a 52-tone dRU, where the RU start (r) = {0, 8, 4, 12, 6, 14, 2, 10, 1, 9, 5, 13, 7, 15, 3, 11}, and l (i)＝ {0,16}.

8. The method according to claim 5, wherein The dRU also includes a 106-tone dRU, where the RU start (r) ＝ {0,4,6,2,1,5,7,3}, and l (i)＝ {0,8,16,24}.

9. The method according to claim 5, wherein The dRU also includes a 242-tone dRU, where the RU start (r) ＝ {0,2,1,3}, and l (i) ={0:4:32}.

10. The method according to claim 5, wherein The dRU also includes a 484-tone dRU, where the RU start (r) = {0, 1}, and l (i) ={0:2:34}.

11. The method according to claim 4, wherein The dRU also includes a 26-tone dRU, where the RU start (r) = {0, 13, 26, 3, 16, 29, 6, 19, 32, 9, 22, 35, 12, 25, 2, 15, 28, 5, 18, 31, 8, 21, 34, 11, 24, 1, 14, 27, 4, 17, 30, 7, 20, 33, 10, 23}, and l (i) ={0}.

12. The method according to claim 1, wherein The dRU also includes a 52-tone dRU, where the RU start (r) ＝ {0,3,6,19,9,12,2,5,18,8,11,1,4,17,20,10}, and: For dRU1, dRU4, dRU5, dRU7, dRU9, dRU10, dRU11, dRU12, dRU14, dRU15, and dRU16, (i) ={0,13}; For dRU2, dRU3, dRU6, dRU8, and dRU13, (i) ={0,23}.

13. The method according to claim 1, wherein The dRU includes the 106-tone dRU, where RU start (r) ＝ {0,6,9,2,8,1,4,10}, and: For dRU2 and dRU7, l (i) ={0,13,23,26}; For dRU5, dRU6 and dRU8, (i) ={0,10,13,23}.

14. The method according to claim 1, wherein The dRU also includes a 242-tone dRU, where the RU start (r) ＝ {0,2,1,4}, and: For dRU1,l (i) ={0,3,6,13,16,19,26,29,32}; For dRU2, l (i) ={0,3,7,10,13,20,23,26,33}; For dRU3,l (i) ={0,7,10,13,17,20,23,30,33}; Targeting dRU4,l (i) ={0,3,6,13,16,19,23,26,29}.

15. The method according to claim 1, wherein The dRU also includes a 484-tone dRU, where the RU start (r) = {0, 1}, and: For dRU1,l (i) ={0,2,3,5,6,9,12,13,15,16,19,22,25,26,28,29,32,35}; For dRU2, l (i) ={0,3,6,7,9,10,13,16,17,19,20,22,23,26,29,30,32,33}.

16. The method according to claim 1, wherein The tone distribution pattern of this dRU is center-aligned and DC-symmetric.

17. The method according to claim 1, wherein The tone distribution pattern of this dRU is center-aligned and DC asymmetric.

18. The method according to claim 1, wherein The tone distribution pattern of this dRU is edge-aligned and DC-symmetric.

19. The method according to claim 1, wherein The tone distribution pattern of this dRU is edge-aligned and DC-asymmetric.

20. A wireless communication device, characterized in that: include: a transceiver configured to conduct wireless communication; as well as A processor is coupled to the transceiver and configured to execute the wireless communication method according to any one of claims 1 to 19.

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