PPDU transmission method and related apparatus

Abstract

To provide a physical layer protocol data unit (PPDU) transmitting method and a communication device.SOLUTION: A method includes steps of: generating, by an access point, a PPDU; and transmitting the PPDU. The PPDU includes a plurality of resource unit allocation subfields, and the plurality of resource unit allocation subfields include resource unit allocation subfields corresponding to MRU for indicating that a 242-tone RU corresponding to the resource unit allocation subfields belongs to the MRU. The number of the resource unit allocation subfields corresponding to the MRU among resource unit allocation subfields corresponding to each 80 MHz sub-block in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU.SELECTED DRAWING: Figure 6A

Description

Technical Field

[0001] This application relates to the field of mobile communication technologies, and more particularly, to a PPDU transmission method and related apparatuses.

Background Art

[0002] With the development of wireless local area network (WLAN), orthogonal frequency division multiple access (OFDMA) technology has been newly introduced, and the entire bandwidth is divided into multiple resource units (RUs). In other words, a user's frequency domain resources are allocated not by channels but by resource units. For example, a 20 MHz channel may include multiple RUs, which may be 26-tone RUs, 52-tone RUs, and 106-tone RUs. Tone indicates the number of subcarriers. In addition, the RU may alternatively be a 242-tone RU, a 484-tone RU, a 996-tone RU, etc.

[0003] In 802.11ax, the channel bandwidth of a physical layer protocol data unit (PPDU) transmitted by an access point is allocated to multiple stations for data transmission. The high efficient signal field (HE-SIG-B) of the PPDU includes one or more resource unit allocation subfields, and the resource unit is allocated to the RU to which the frequency domain resource corresponding to the resource unit allocation subfield belongs, and is the number of user fields corresponding to that RU. It can be seen that the existing resource unit allocation subfield can support allocating only one RU to one or more users, but cannot support allocating multiple RUs to one or more users.

Summary of the Invention

[0004] This application provides a PPDU transmission method for instructing the allocation of multiple RUs to one or more users.

[0005] According to a first aspect, a PPDU transmission method is provided, which includes the steps of generating a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include resource unit allocation subfields corresponding to MRUs, the resource unit allocation subfields corresponding to MRUs indicate that the 242-tone RUs corresponding to the resource unit allocation subfields belong to the MRU, and the number of resource unit allocation subfields corresponding to MRUs in the resource unit allocation subfields corresponding to each 80MHz subblock in a plurality of 80MHz subblocks in the bandwidth for transmitting the PPDU is for determining or indicating the type of MRU; and transmitting the PPDU.

[0006] The bandwidth for transmitting PPDUs is 80 MHz or higher. This bandwidth includes one or more 80 MHz subblocks. For example, a bandwidth of 240 MHz includes three 80 MHz subblocks, and a bandwidth of 320 MHz includes four 80 MHz subblocks. This simplifies the resource unit allocation subfield instruction scheme, allowing the PPDU receiver to determine or instruct the type of MRU based on the number of resource unit allocation subfields corresponding to MRUs within the resource unit allocation subfields corresponding to each of the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU. A bandwidth of 80 MHz or higher for transmitting PPDUs enables the synthesis of multiple RUs into a single MRU and the allocation of MRUs to one or more users.

[0007] According to a second aspect, the present application further provides a PPDU transmission method, which includes the steps of generating a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising resource unit allocation subfields indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong being a contiguous 240 MHz within the bandwidth for transmitting the PPDU, and the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each of the first RUs being set according to the standard; and transmitting the PPDU, wherein one of the two first RUs is a 996+484-tone RU and the other first RU is a 484-tone+996-tone RU.

[0008] For example, as defined in communication standards, a 240 MHz bandwidth may include 996-tone RUs, 484-tone RUs, 484-tone RUs, and 996-tone RUs in ascending order of absolute frequency. Low-frequency 996-tone RUs and 484-tone RUs are combined into 996+484-tone RUs, and high-frequency 484-tone RUs and 996-tone RUs are combined into 484+996-tone RUs.

[0009] Thus, the communication standard defines the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, and the PPDU receiver can accurately determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, such a measure does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate 996+484-tone RU and 484+996-tone RU.

[0010] According to a third aspect, the present application further provides a PPDU transmission method, which includes the steps of generating a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU of a 996-tone RU and a 484-tone RU forming a first RU and a 2*996-tone RU and a 484-tone RU forming a second MRU are set according to a standard; and transmitting the PPDU.

[0011] For example, as defined in the communication standard, when a 320MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, the 320MHz bandwidth includes 2*996-tone RUs, 484-tone RUs, 484-tone RUs, and 996-tone RUs in ascending order of absolute frequency. That is, in ascending order of frequency, the 2*996-tone RUs corresponding to the first and second 80MHz subblocks in the 320MHz bandwidth, and the 484-tone RU corresponding to the first 40MHz subblock of the third 80MHz subblock, form the 2*996+484-tone RU, while the 484-tone RU corresponding to the second 40MHz subblock of the third 80MHz subblock and the 996-tone RU corresponding to the fourth 80MHz subblock form the 996+484-tone RU.

[0012] In another example, as defined in the communication standard, when a 320MHz bandwidth includes 2*996-tone+484 RUs and 996+484-tone RUs, the 320MHz bandwidth includes 996-tone RUs, 484-tone RUs, 484-tone RUs, and 2*996-tone RUs in ascending order of absolute frequency. That is, the 996-tone RU corresponding to the first 80MHz subblock in the 320MHz bandwidth and the 484-tone RU corresponding to the first 40MHz subblock of the second 80MHz subblock form a 996+484-tone RU, and the 484-tone RU corresponding to the second 40MHz subblock of the second 80MHz subblock, as well as the 2*996-tone RUs corresponding to the third and fourth 80MHz subblocks, form a 996+484-tone RU.

[0013] Thus, the standard specifies the frequency positions in the 320MHz bandwidth of the 996-tone RU and 484-tone RU that form the first RU, and the 2*996-tone RU and 484-tone RU that form the second MRU. The PPDU receiver can accurately determine the frequency positions in the 320MHz bandwidth of the 996-tone RU and 484-tone RU that form the first RU, and the 2*996-tone RU and 484-tone RU that form the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a measure does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate the 2*996+484-tone RU and the 484+2*996-tone RU.

[0014] According to a fourth aspect, the present application further provides a PPDU transmission method, which includes the steps of generating a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the first MRU consisting of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to a standard or a frequency position indicated by instruction information transmitted by an AP; and transmitting the PPDU.

[0015] In other words, 996-tone RUs and 484-tone RUs can be synthesized into MRUs that are only within the permissible 160 MHz subblocks specified in the standard, or within the permissible 160 MHz subblocks indicated by the instruction information transmitted by the AP.

[0016] For example, when the bandwidth is 240 MHz, the 996-tone RU and 484-tone RU may be allowed to be combined into an MRU that is located only within the primary 160 MHz subblock, or the AP may transmit instructional information to indicate that the 996-tone RU and 484-tone RU may be allowed to be combined into an MRU that is located only within the primary 160 MHz subblock (a 160 MHz subblock that includes the primary 80 MHz subblock and the secondary 80 MHz subblock).

[0017] In another example, the bandwidth is 320 MHz and 80 MHz is punctured. If one 80 MHz subblock of the primary 160 MHz subblock is punctured, the secondary 160 MHz subblock may be allowed to contain 996+484-tone RUs or 484+996-tone RUs.

[0018] Thus, the PPDU receiver can accurately determine which 160MHz subblocks contain the 996-tone RU and 484-tone RU in a 996+484-tone RU or 484+996-tone RU, thereby allocating the MRU obtained by synthesizing the 996-tone RU and 484-tone RU to one or more users. In addition, such a strategy eliminates the need for different synthesis instances to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate the 996+484-tone RU and 484+996-tone RU.

[0019] According to a fifth aspect, the present application further provides a PPDU transmission method, which includes the steps of generating a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, and a bandwidth for transmitting the PPDU comprising a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the highest 80 MHz frequency in the 240 MHz bandwidth being for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and transmitting the PPDU.

[0020] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0021] In ascending order of frequency, the 240MHz bandwidth includes the first 80MHz subblock, the second 80MHz subblock, and the third 80MHz subblock.

[0022] Optionally, the PPDU may further include a resource unit allocation subfield indicator field to indicate that the PPDU does not contain a resource unit allocation subfield corresponding to a second 80MHz subblock. The resource unit allocation subfield indicator field may be, for example, a bitmap. Each bit in the bitmap corresponds to one 20MHz subblock within the 240MHz bandwidth and indicates whether the PPDU contains a resource unit allocation subfield corresponding to a 20MHz subblock. For example, the bitmap may be 111100001111, indicating that the PPDU does not contain a resource unit allocation subfield corresponding to a second 80MHz subblock.

[0023] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the PPDU receiver can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, accurately determine the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU in the 240MHz bandwidth, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0024] According to a sixth aspect, embodiments of the present application further provide a PPDU transmission method, which includes the steps of generating a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, and a bandwidth for transmitting the PPDU comprising a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the position of the 160 MHz subblock in the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and transmitting the PPDU.

[0025] In ascending order of frequency, the 240MHz bandwidth includes the first 80MHz subblock, the second 80MHz subblock, and the third 80MHz subblock. The second lowest 80MHz frequency is the second 80MHz subblock within the 240MHz bandwidth.

[0026] The PPDU may include a resource unit allocation subfield corresponding to a first 80MHz subblock and a resource unit allocation subfield corresponding to a third 80MHz subblock, or it may not include a resource unit allocation subfield corresponding to a first 80MHz subblock and / or a resource unit allocation subfield corresponding to a third 80MHz subblock.

[0027] In such a solution, when determining the frequency positions of the 996 - tone RU and the 484 - tone RU that form the 996 + 484 - tone RU or the 484 + 996 - tone RU, the PPDU receiving device can accurately determine the frequency positions in the 240 MHz bandwidth of the 996 - tone RU and the 484 - tone RU that form the 996 + 484 - tone RU or the 484 + 996 - tone RU based on the resource unit allocation sub - field corresponding to the second - lowest 80 MHz frequency and / or the resource unit allocation sub - field corresponding to the highest 80 MHz frequency, and thereby allocate the MRU obtained by synthesizing the 996 - tone RU and the 484 - tone RU to one or more users.

[0028] According to a seventh aspect, the present application further provides a PPDU transmission method, which includes a step of receiving a PPDU, where the PPDU includes a plurality of resource unit allocation sub - fields, the plurality of resource unit allocation sub - fields include a resource unit allocation sub - field corresponding to an MRU, the resource unit allocation sub - field corresponding to the MRU indicates that the 242 - tone RU corresponding to the resource unit allocation sub - field belongs to the MRU, and the number of resource unit allocation sub - fields corresponding to the MRU in the resource unit allocation sub - fields corresponding to each 80 MHz sub - block in a plurality of 80 MHz sub - blocks within the bandwidth for transmitting the PPDU is for determining or indicating the type of the MRU; and a step of analyzing at least a part of the resource unit allocation sub - fields in the plurality of resource unit allocation sub - fields to determine the RUs forming the MRU.

[0029] It can be understood that the MRU indicated by the resource unit allocation subfield is the MRU included in the bandwidth for transmitting the PPDU. Specifically, the station can determine which type of MRU is included in the bandwidth for transmitting the PPDU based on the number of resource unit allocation subfields corresponding to the MRU in the resource unit allocation subfield corresponding to each 80 MHz sub-block among a plurality of 80 MHz sub-blocks in the bandwidth for transmitting the PPDU.

[0030] Thus, the resource unit allocation subfield indication method is simplified, and the PPDU receiving device can determine which type of MRU is included in the bandwidth for transmitting the PPDU based on the resource unit allocation subfield. This can implement the synthesis of a plurality of RUs into one MRU and the allocation of the MRU to one or more users.

[0031] According to an eighth aspect, the present application further provides a PPDU transmission method, which includes a step of receiving a PPDU, where the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is continuous 240 MHz in the bandwidth for transmitting the PPDU, and the frequency positions of the 996-tone RUs and 484-tone RUs forming each of the first RUs in the 240 MHz bandwidth are set according to the standard; and a step of analyzing at least a part of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs forming the MRU.

[0032] In such a strategy, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU. The PPDU receiver can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes two first MRUs, and can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, such a strategy does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate the 996+484-tone RU and 484+996-tone RU.

[0033] According to a ninth aspect, the present application further provides a PPDU transmission method, which includes the steps of receiving a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU are set according to a standard for 996-tone RUs and 484-tone RUs forming a first RU and 2*996-tone RUs and 484-tone RUs forming a second MRU; and analyzing at least a portion of the resource unit allocation subfields in the plurality of resource unit allocation subfields in order to determine the RUs forming the MRU.

[0034] In such a configuration, the standard specifies the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU. The PPDU receiver can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes the first and second MRUs, and can accurately determine the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a strategy eliminates the need for different synthesis instances to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate 2*996+484-tone RU and 484+2*996-tone RU.

[0035] According to a tenth aspect, the present application further provides a PPDU transmission method, which includes the steps of receiving a PPDU, wherein the PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the first MRU consisting of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to a standard or a frequency position indicated by instruction information transmitted by an AP; and analyzing at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0036] Thus, the PPDU receiver can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes MRUs containing 996-tone RUs and 484-tone RUs, and can accurately determine which 160MHz subblocks contain 996-tone RUs and 484-tone RUs, thereby allocating the MRUs obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, such a strategy eliminates the need for different combination cases to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate 996-tone RUs and 484-tone RUs.

[0037] According to an eleventh aspect, the present application further provides a PPDU transmission method, which includes the step of receiving a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, and the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the highest 80 MHz frequency in the 240 MHz bandwidth includes the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth. The method includes the steps of determining or indicating the frequency position of a RU, and analyzing at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form an MRU.

[0038] Specifically, the PPDU receiver can determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU forming the first MRU, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and the resource unit allocation subfield corresponding to the highest 80MHz frequency; that is, it can determine the frequency position of the RU forming the first MRU in the 240MHz bandwidth.

[0039] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0040] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the PPDU receiver can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, accurately determine the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU in the 240MHz bandwidth, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0041] According to a twelfth aspect, the present application further provides a PPDU transmission method, which includes the step of receiving a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, and the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the position of the 160 MHz subblock in the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth includes the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth. The method includes the steps of determining or indicating the frequency position of a RU, and analyzing at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form an MRU.

[0042] Specifically, the PPDU receiver can determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU forming the first MRU, based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and the resource unit allocation subfield corresponding to the highest 80 MHz frequency; that is, it can determine the frequency position of the RU forming the first MRU within the 240 MHz bandwidth.

[0043] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0044] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the PPDU receiver can accurately determine the frequency positions of the 996-tone RU and 484-tone RU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0045] It should be understood that the relevant supplementary explanations of the methods in the first through sixth embodiments are also applicable to the methods in the seventh through twelfth embodiments.

[0046] The methods of the first to sixth embodiments may be performed by a PPDU transmitting device, and the methods of the seventh to twelfth embodiments may be performed by a PPDU receiving device.

[0047] The PPDU transmitting device may be an access point or a station. The PPDU receiving device may be a station or an access point.

[0048] According to the 13th aspect, a PPDU transmitter is provided, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes multiple resource unit allocation subfields, each of which includes a resource unit allocation subfield corresponding to an MRU, the resource unit allocation subfield corresponding to the MRU indicating that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80MHz subblocks in the bandwidth for transmitting the PPDU is for determining or indicating the type of MRU. Includes a transmitting unit configured to send PPDUs.

[0049] The bandwidth for transmitting PPDUs is 80 MHz or higher. This bandwidth includes one or more 80 MHz subblocks. For example, when the bandwidth is 240 MHz, it includes three 80 MHz subblocks, and when the bandwidth is 320 MHz, it includes four 80 MHz subblocks. Thus, the resource unit allocation subfield instruction scheme is simple, and a PPDU receiving device (e.g., a station) can determine the type of MRU based on the number of resource unit allocation subfields corresponding to MRUs in the resource unit allocation subfields corresponding to each of the multiple 80 MHz subblocks in the bandwidth for transmitting PPDUs. The bandwidth for transmitting PPDUs is 80 MHz or higher. This allows for the synthesis of multiple RUs into one MRU and the allocation of MRUs to one or more users.

[0050] According to a fourteenth aspect, the present application further provides a PPDU transmission device, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include resource unit allocation subfields indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a contiguous 240 MHz within the bandwidth for transmitting the PPDU, and the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU forming each of the first RUs are set according to the standard. Includes a transmitting unit configured to send PPDUs.

[0051] Thus, the communication standard defines the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU. The transmitting device can accurately determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, such a measure eliminates the need for different combination cases to be indicated by different indices in the resource unit allocation subfield, thereby reducing the number of indices used for the resource unit allocation subfield to indicate 996+484-tone RU and 484+996-tone RU.

[0052] According to the 15th aspect, the present application further provides a PPDU transmission device, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU of the 996-tone RU and 484-tone RU forming the first RU and the 2*996-tone RU and 484-tone RU forming the second MRU are set according to the standard. Includes a transmitting unit configured to send PPDUs.

[0053] Thus, the standard specifies the frequency positions in the 320MHz bandwidth of the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU. The transmitter can accurately determine the frequency positions in the 320MHz bandwidth of the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a measure eliminates the need for different combination cases to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate the 2*996+484-tone RU and 484+2*996-tone RU.

[0054] According to the sixteenth aspect, the present application further provides a PPDU transmission device, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU consists of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to the standard or a frequency position indicated by instruction information transmitted by the AP, Includes a transmitting unit configured to send PPDUs.

[0055] In other words, 996-tone RUs and 484-tone RUs can be synthesized into MRUs that are only within the permissible 160 MHz subblocks specified in the standard, or within the permissible 160 MHz subblocks indicated by the instruction information transmitted by the AP.

[0056] Thus, the transmitter can accurately determine which 160MHz subblocks contain 996-tone RUs and 484-tone RUs in a 996+484-tone RU or 484+996-tone RU, thereby allocating the MRU obtained by synthesizing the 996-tone RUs and 484-tone RUs to one or more users. In addition, such a strategy eliminates the need for different synthesis instances to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate 996+484-tone RUs and 484+996-tone RUs.

[0057] According to the seventeenth aspect, the present application further provides a PPDU transmission device, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the highest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth, Includes a transmitting unit configured to send PPDUs.

[0058] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0059] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmitter can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, accurately determine the frequency positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU or 484+996-tone RU in the 240MHz bandwidth, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0060] Optionally, the PPDU may further include a resource unit allocation subfield indicator field to indicate that the PPDU does not contain a resource unit allocation subfield corresponding to a second 80MHz subblock. The resource unit allocation subfield indicator field may be, for example, a bitmap. Each bit in the bitmap corresponds to one 20MHz subblock within the 240MHz bandwidth and indicates whether the PPDU contains a resource unit allocation subfield corresponding to a 20MHz subblock. For example, the bitmap may be 111100001111, indicating that the PPDU does not contain a resource unit allocation subfield corresponding to a second 80MHz subblock.

[0061] According to the 18th aspect, embodiments of the present application further provide a PPDU transmission device, which is, A processing unit configured to generate a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the position of the 160 MHz subblock in the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth, Includes a transmitting unit configured to send PPDUs.

[0062] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmitter can accurately determine the frequency positions of the 996-tone RU and 484-tone RU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0063] According to the 19th aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes multiple resource unit allocation subfields, each of which includes a resource unit allocation subfield corresponding to an MRU, and each resource unit allocation subfield indicates that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80MHz subblocks in the bandwidth for transmitting the PPDU is used to determine the type of MRU. The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0064] The MRU indicated by the resource unit allocation subfield can be understood as the MRU included in the bandwidth for transmitting the PPDU. Specifically, the transmitter may determine what type of MRU is included in the bandwidth for transmitting the PPDU based on the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU.

[0065] Thus, the resource unit allocation subfield instruction scheme is simplified, and the transmitter can determine, based on the resource unit allocation subfield, which types of MRUs are included in the bandwidth for transmitting the PPDU. This allows for the synthesis of multiple RUs into a single MRU and the allocation of MRUs to one or more users.

[0066] According to a 20th aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include resource unit allocation subfields indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a consecutive 240 MHz within the bandwidth for transmitting the PPDU, and the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU forming each of the first RUs are set according to the standard. The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0067] In such a strategy, the communication standard specifies the frequency positions in the 240 MHz bandwidth for the 996-tone RU and 484-tone RU that form each first MRU. The transmitter can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes two first MRUs, and can accurately determine the frequency positions in the 240 MHz bandwidth for the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, such a strategy does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate the 996+484-tone RU and 484+996-tone RU.

[0068] According to the 21st aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU of the 996-tone RU and 484-tone RU forming the first RU and the 2*996-tone RU and 484-tone RU forming the second MRU are set according to the standard. The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0069] In such a configuration, the standard specifies the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU. The transmitter can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes the first and second MRUs, and can accurately determine the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a strategy eliminates the need for different synthesis instances to be indicated by different indices in the resource unit allocation subfield, thus reducing the number of indices used for the resource unit allocation subfield to indicate 2*996+484-tone RU and 484+2*996-tone RU.

[0070] According to the 22nd aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU consists of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to the standard or a frequency position indicated by instruction information transmitted by the AP, The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0071] Thus, the transmitter can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes MRUs containing 996-tone RUs and 484-tone RUs, and can accurately determine which 160MHz subblocks contain 996-tone RUs and 484-tone RUs, thereby allocating the MRUs obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, such a strategy does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate 996-tone RUs and 484-tone RUs.

[0072] According to a 23rd aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 96-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the highest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth, The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0073] Specifically, the processing unit of the transmitting device can determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form the first MRU, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and the resource unit allocation subfield corresponding to the highest 80MHz frequency; that is, it can determine the frequency position of the RUs that form the first MRU in the 240MHz bandwidth.

[0074] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0075] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmitter can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, accurately determine the frequency positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU or 484+996-tone RU in the 240MHz bandwidth, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0076] According to the 24th aspect, the present application further provides a PPDU transmission device, which is, A receiving unit configured to receive a PPDU, wherein the PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU includes a continuous 240 MHz, the first MRU includes a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the position of the 160 MHz subblock in the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth, The system includes a processing unit configured to analyze at least a portion of resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0077] Specifically, the transmitter can determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU forming the first MRU, based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and the resource unit allocation field corresponding to the highest 80MHz frequency; that is, it can determine the frequency position of the RU forming the first MRU within the 240MHz bandwidth.

[0078] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0079] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmitter can accurately determine the frequency positions of the 996-tone RU and 484-tone RU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0080] It should be understood that the transmitting device in aspects 13 to 18 is a PPDU transmitting device, and the transmitting device in aspects 19 to 24 is a PPDU receiving device. The PPDU transmitting end may be an access point or a station. The PPDU receiving end may be an access point or a station.

[0081] The relevant supplementary explanations of the transmission methods in the first to twelfth embodiments are also applicable to the transmission devices in the thirteenth to twenty-fourth embodiments.

[0082] According to the 25th aspect, one implementation of the present application further provides a communication device configured to transmit PPDUs. The communication device may include a processor, a transceiver, and optionally further include memory. When the processor executes a computer program or instruction in memory, a method according to any one of the implementations of the first to twelfth aspects. This will be executed.

[0083] According to the 26th aspect, one implementation of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores instructions that instruct a communication device to perform a method relating to any one of the implementations of the first to twelfth aspects.

[0084] According to the 27th aspect, one implementation of the present application further provides a computer program product. The computer program product includes a computer program. When the computer program is executed on a computer, the computer is made capable of performing a method relating to any one of the implementations of the first to twelfth aspects.

[0085] According to the 28th aspect, the present application further provides a processor configured to perform a method relating to any one of the implementations of the first to twelfth aspects. In the process of performing these methods, the process of transmitting the aforementioned information and the process of receiving the aforementioned information in the aforementioned methods can be understood as the process of outputting the aforementioned information by the processor and the process of receiving the aforementioned input information by the processor. Specifically, when outputting information, the processor outputs the information to a transceiver, so the transceiver transmits the information. Furthermore, after the information is output by the processor, other processing may need to be performed on the information before it reaches the transceiver. Similarly, when the processor receives input information, the transceiver receives the information and inputs it to the processor. Furthermore, after the transceiver receives the information, other processing may need to be performed on the information before it reaches the processor.

[0086] In this case, unless there is a specific statement regarding the operation of the processor, such as transmission, transmission, and reception, or unless the operation is consistent with the actual function or internal logic of the operation in the relevant description, the operation may be more generally understood to be the operation of the processor, such as input, reception, and output, rather than the operation of transmission, transmission, and reception directly performed by the high-frequency circuit and antenna.

[0087] In a specific implementation, the processor may be a processor specifically configured to carry out these methods, or a processor configured to execute computer instructions in memory in order to carry out these methods, such as a general-purpose processor. The memory may be non-temporary memory, such as read-only memory (ROM). The memory and processor may be integrated on the same chip, or they may be disposed separately on different chips. The type of memory and the arrangement of the memory and processor are not limited to the embodiments of the present invention.

[0088] According to the 29th aspect, the present application provides a chip system. The chip system includes a processor and interfaces configured to assist a communication transmission device in implementing the function of any one of the first to eighth aspects, for example, determining or processing at least one of the data and information relating to the aforementioned method. In one possible design, the chip system further includes memory, which is configured to store the information and data necessary for the aforementioned communication device. The chip system may be a chip, or it may include a chip and other separate components.

[0089] According to the 30th aspect, the present application provides a functional entity, which is configured to carry out a method relating to any one of the first to eighth aspects. [Brief explanation of the drawing]

[0090] [Figure 1] This is a schematic diagram of a network structure according to one embodiment of this application. [Figure 2] This is a schematic diagram of the structure of a communication device according to one embodiment of this application. [Figure 3] This is a schematic diagram of the structure of a chip or chip system according to one embodiment of this application. [Figure 4A] This is a schematic diagram of possible resource unit allocation methods. [Figure 4B] This is a schematic diagram of another possible resource unit allocation method. [Figure 5A] This is a schematic diagram of the signal field structure. [Figure 5B] This is a schematic diagram of another signal field structure. [Figure 5C] This is a schematic diagram of the PPDU structure. [Figure 6A] This is a schematic flowchart of a PPDU transmission method according to one embodiment of this application. [Figure 6B] This is a schematic scenario diagram of an MRU synthesis example included in 80MHz. [Figure 6C]This is a schematic scenario diagram of an MRU synthesis example included in 160MHz. [Figure 6D] This is a schematic scenario diagram of an MRU synthesis example included in 240MHz. [Figure 6E] This is another schematic scenario diagram of an MRU synthesis example included in 160MHz. [Figure 6F-1] This is a schematic scenario diagram of an MRU synthesis example included in 320MHz. [Figure 6F-2] This is a schematic scenario diagram of an MRU synthesis example included in 320MHz. [Figure 6F-3] This is a schematic scenario diagram of an MRU synthesis example included in 320MHz. [Figure 6G] This is another schematic scenario diagram of an MRU synthesis example included in 320MHz. [Figure 7A] This is another schematic scenario diagram of an MRU synthesis example included in 240MHz. [Figure 7B] This is another schematic scenario diagram of an MRU synthesis example included in 240MHz. [Figure 8A] This is a schematic diagram illustrating the numbering of resource units according to one embodiment of this application. [Figure 8B] This is a schematic flowchart of a transmission method according to one embodiment of this application. [Figure 8C] This is another schematic scenario diagram of an MRU synthesis example included in 240MHz. [Figure 9A] This is a schematic diagram of a resource unit allocation scenario. [Figure 9B] This is a schematic diagram of the structure of a signal field according to one embodiment of this application. [Figure 9C] This is a schematic diagram of the structure of another signal field according to one embodiment of this application. [Figure 9D] This is a schematic diagram of yet another signal field structure according to one embodiment of the present application. [Figure 10] This is another schematic flowchart of a transmission method according to one embodiment of this application. [Figure 11A]This is a schematic diagram of yet another signal field structure according to one embodiment of the present application. [Figure 11B] This is a schematic diagram of yet another signal field structure according to one embodiment of the present application. [Figure 12] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 13] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 14] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 15] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 16] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 17] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 18] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 19] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 20] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 21] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 22] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Figure 23] This is a schematic diagram of the structure of a transmitting device according to one embodiment of this application. [Modes for carrying out the invention]

[0091] To further clarify the purpose, technical measures, and advantages of the embodiments of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0092] Embodiments of this application may be applied to wireless local area network (WLAN) scenarios and may be applied to IEEE 802.11 system standards, such as IEEE 802.11be standards, or next-generation standards or further next-generation standards. Alternatively, embodiments of this application may be applied to wireless local area network systems, such as the Internet of Things (IoT) or Vehicle to Everything (V2X) networks. Naturally, embodiments of this application may be further applied to other possible communication systems, such as global systems for mobile communications (GSM), code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) systems, general packet radio service (GPRS), long-term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) communication systems, and future 5G communication systems.

[0093] For example, Figure 1 shows a network structure to which the PPDU transmission method of this application is applicable. Figure 1 is a schematic diagram of a network structure according to one embodiment of this application. The network structure may include one or more access point (AP) stations and one or more non-access point stations (non-AP STA). For simplicity of explanation, in this specification, access point stations are referred to as access points (AP) and non-access point stations are referred to as stations (STA). APs are, for example, AP1 and AP2 in Figure 1, and STAs are, for example, STA1, STA2, and STA3 in Figure 1.

[0094] An access point can be a device used by terminal devices (such as mobile phones) to access a wired (or wireless) network, and is primarily located in homes, buildings, and parks. Typical coverage radius ranges from several tens of meters to over 100 meters. Naturally, access points can also be located outdoors. An access point is equivalent to a bridge connecting wired and wireless networks. The main function of an access point is to connect various wireless network clients together and then connect the wireless network to Ethernet. Specifically, an access point can be a terminal device (such as a mobile phone) or a network device (such as a router) with a Wireless Fidelity (Wi-Fi) chip. An access point can be a device that supports the 802.11be standard. Alternatively, the access point may be a device that supports multiple wireless local area network (WLAN) standards in the 802.11 group, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. The access point of this application may be a high-efficiency (HE) AP or an extremely high-throughput (EHT) AP, or an access point applicable to future Wi-Fi standards.

[0095] An access point may include a processor and transceivers. The processor is configured to control and manage the activity of the access point, and the transceivers are configured to receive or transmit information.

[0096] A station may be a wireless communication chip, wireless sensor, wireless communication terminal, etc., and may be called a user. For example, a station may be a mobile phone that supports Wi-Fi communication, a tablet computer that supports Wi-Fi communication, a set-top box that supports Wi-Fi communication, a smart television that supports Wi-Fi communication, an intelligent wearable device that supports Wi-Fi communication, an in-vehicle communication device that supports Wi-Fi communication, or a computer that supports Wi-Fi communication. Optionally, a station may support the 802.11be standard. A station may further support multiple wireless local area network (WLAN) standards in the 802.11 group, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0097] The station may include a processor and a transceiver. The processor is configured to control and manage the activity of the access point, and the transceiver is configured to receive or transmit information.

[0098] The access point of this application may be a high-efficiency (HE) STA or an extremely high-throughput (EHT) STA, or an STA applicable to future Wi-Fi standards.

[0099] For example, access points and stations may be devices applied to the Internet of Vehicles, Internet of Things (IoT) nodes or sensors, smart cameras, smart remote controls, smart water meters in smart homes, and sensors in smart cities.

[0100] In embodiments of this application, access points and stations may collectively be referred to as communication devices. Communication devices may include hardware structures and software modules, and the aforementioned functions are implemented in the form of hardware structures, software modules, or combinations of hardware structures and software modules. Some of the aforementioned functions may be implemented in the form of hardware structures, software modules, or combinations of hardware structures and software modules.

[0101] Figure 2 is a schematic diagram of the structure of a communication device according to one embodiment of the present application. As shown in Figure 2, the communication device 200 may include a processor 201 and a transceiver 205, and optionally further include a memory 202.

[0102] The transceiver 205 may be called a transceiver unit, transceiver machine, or transceiver circuit, and is configured to implement transceiver functionality. The transceiver 205 may include a receiver and a transmitter. The receiver may be called a receiver machine or receiver circuit, and is configured to implement receiving functionality. The transmitter may be called a transmitter machine or transmitter circuit, and is configured to implement transmitting functionality.

[0103] Memory 202 may store a computer program, software code, or instruction 204, which may further be called firmware. The processor 201 may control the MAC layer and the PHY layer by executing a computer program, software code, or instruction 203 within the processor 201, or by calling a computer program, software code, or instruction 204 stored in memory 202, in order to implement the PPDU transmission method provided in the following embodiments of this application. The processor 201 may be a central processing unit (CPU), and memory 202 may be, for example, read-only memory (ROM) or random access memory (RAM).

[0104] The processor 201 and transceiver 205 described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, and the like.

[0105] The communication device 200 may further include an antenna 206. The modules included in the communication device 200 are merely illustrative examples and are not limited to those described herein.

[0106] As described above, the communication device 200 described in the above embodiments may be an access point or a station. However, the scope of communication devices described herein is not limited thereto, and the structure of the communication device may not be limited in Figure 2. The communication device may be an independent device or part of a relatively larger device. For example, the communication device may be: (1) an independent integrated circuit (IC), chip, chip system, or subsystem; (2) a set comprising one or more ICs, which optionally also include a storage component for storing data and instructions; (3) a module that can be embedded in other devices; (4) a receiver, intelligent terminal, wireless device, handheld device, mobile unit, automotive device, cloud device, artificial intelligence device, etc.; or (5) anything else. It can be implemented in this format.

[0107] For communication devices implemented in the form of a chip or chip system, please refer to the schematic diagram of the chip or chip system structure shown in Figure 3. The chip or chip system shown in Figure 3 includes a processor 301 and an interface 302. There may be one or more processors 301 and multiple interfaces 302. Optionally, the chip or chip system may include memory 303.

[0108] The embodiments of this application do not limit the scope of protection or the applicability of the claims. Those skilled in the art may, without departing from the scope of the embodiments of this application, adaptively modify the function and arrangement of the elements of this application, or omit, replace, or add various processes or components.

[0109] The AP communicates with the STA. The AP can allocate resources to the STA. The STA performs data transmission on the allocated resources. For example, orthogonal frequency division multiple access (OFDMA) technology or multi-users multiple-input multiple-output (MU-MIMO) technology can be used for wireless communication between the AP and the STA. In an OFDMA transmission scenario, the spectral bandwidth is divided into several resource units (RUs) according to the WLAN protocol. For example, bandwidth configurations supported by the 802.11ax protocol include 20MHz, 40MHz, 80MHz, 160MHz, and 80+80MHz. The difference between 160MHz and 80+80MHz is that the former is a continuous frequency band, while the two 80MHz subblocks of the latter may be separated; that is, the 160MHz subblock formed by 80+80MHz is discontinuous.

[0110] The 802.11ax standard supports a maximum bandwidth of 160 MHz. As specified in the 802.11ax standard, for 20 MHz, 40 MHz, 80 MHz, and 160 MHz, the spectral bandwidth may be divided into several types of RUs, which may be 26-tone RUs, 52-tone RUs, and 106-tone RUs. These RUs are generally referred to as small RUs. A tone represents a subcarrier. For example, a 26-tone RU represents an RU containing 26 subcarriers, and a 26-tone RU may be allocated to one user for use. In addition, the size of the RU may be alternatively 242-tone, 484-tone, 996-tone, etc., and these RUs are generally referred to as large RUs. Generally, an RU with a size of 106-tone or more may be allocated to one or more users. In 802.11be, multiple RUs can be allocated to one user, and the user in this application may be understood to be an STA.

[0111] When the channel bandwidth for transmitting a PPDU is 20 MHz, possible resource unit allocation schemes are shown in Figure 4A. Figure 4A is a schematic diagram of possible resource unit allocation schemes used when the bandwidth for transmitting a PPDU is 20 MHz. The entire 20 MHz bandwidth may include the entire resource unit containing 242 subcarriers (242-tone RU), or various combinations of resource units containing 26 subcarriers (26-tone RU), resource units containing 52 subcarriers (52-tone RU), or resource units containing 106 subcarriers (106-tone RU). In addition to the RUs used to transmit data, some guard subcarriers, null subcarriers, or direct current (DC) subcarriers may be included.

[0112] When the channel bandwidth for transmitting a PPDU is 40 MHz, possible resource unit allocation schemes are shown in Figure 4B. Figure 4B is a schematic diagram of possible resource unit allocation schemes used when the channel bandwidth for transmitting a PPDU is 40 MHz. The entire bandwidth is roughly equivalent to a duplicate of a 20 MHz tone plan. The entire 40 MHz bandwidth may include an entire resource unit containing 484 subcarriers (484-tone RU), or it may include various combinations of 26-tone RU, 52-tone RU, 106-tone RU, or 242-tone RU.

[0113] When the channel bandwidth for transmitting a PPDU is 80 MHz, the entire channel bandwidth is roughly equivalent to two copies of a 40 MHz tone plan. The entire 80 MHz bandwidth may include the entire resource unit (996-tone RU) containing 996 subcarriers, or it may include various combinations of 484-tone RU, 242-tone RU, 106-tone RU, 52-tone RU, or 26-tone RU. In addition, an intermediate 26-tone RU (Center 26-Tone RU) containing two 13-tone subunits is located in the center of the entire 80 MHz channel bandwidth.

[0114] When the bandwidth is 160 MHz or 80 + 80 MHz, the entire bandwidth can be considered as two duplicates of an 80 MHz tone plan. The entire bandwidth may contain 2 * 996-tone RUs, or various combinations of 26-tone RUs, 52-tone RUs, 106-tone RUs, 242-tone RUs, 484-tone RUs, or 996-tone RUs.

[0115] An AP can allocate resources to an STA using RUs and notify the STA of the resources allocated to it using a physical layer protocol data unit (PPDU). Specifically, the AP may include resource allocation information in a signal field (SIG) within the PPDU to show the allocated RUs to the STA. For example, the signal field may be a High Efficient Signal Field-B (HE-SIG-B) or an Extremely High Throughput Signal Field (EHT-SIG).

[0116] In 802.11ax, the AP notifies the user of RU allocation by using a signal field (SIG). Figure 5A is a schematic diagram of the signal field structure. As shown in Figure 5A, the HE-SIG includes a common field and a user-specific field.

[0117] The common fields include 1 to N resource unit allocation subfields (RU allocation subfields), a cyclic redundancy code (CRC) used for verification, and a tail subfield used for the cyclic redundancy code. The user-specific fields include user fields corresponding to the RUs indicated by the resource unit allocation subfields.

[0118] A single resource unit allocation subfield is a single resource unit allocation index, and a single resource unit allocation index indicates the size and location of one or more resource units corresponding to one 242-tone RU. It should be understood that one resource unit allocation subfield corresponds to one 242-tone RU, and one 20MHz subblock corresponds to one 242-tone RU. In this case, it can also be understood that one resource unit allocation subfield corresponds to one 20MHz subblock.

[0119] The resource unit allocation index is represented by one or more indices, each corresponding to a single 20MHz subblock of bandwidth. For example, in the 802.11ax protocol, the index table for the resource unit allocation subfield is Table 1. Since the index table shows the resources to be allocated, it can also be called the resource allocation information table. [Table 1A] [Table 1B] [Table 1C]

[0120] In Table 1, the first column shows the index, and the middle column shows the configuration of the RU indicated by the index in the first column. The resource unit allocation subfield may also be the index in the first column of Table 1, and indicates the resource unit allocation status corresponding to 20MHz corresponding to the resource unit allocation subfield. For example, the resource unit allocation subfield is "00111y2y1y0", which indicates that the 242-tone RU corresponding to the resource unit allocation subfield is divided into four RUs, namely a 52-tone RU, a 52-tone RU, a 26-tone RU, and a 106-tone RU.

[0121] When an index corresponds to a RU that contains 106 or more subcarriers, the first three characters of the index indicate the RU allocation status corresponding to the 20MHz corresponding to the resource unit allocation subfield, and the last three characters of the index indicate the number of MU-MIMO users supported by the RU containing 106 or more subcarriers. For example, for index 01000y2y1y0, "01000" indicates that the 20MHz corresponding to the resource unit allocation subfield contains one 106-tone RU and five 26-tone RUs, and y2y1y0 is 010, which indicates that the 106-tone RU is allocated to three users.

[0122] The user-specific fields of the signal field (HE-SIG) contain 1 to M user fields according to the resource unit allocation order. The M user fields typically form groups of two, followed by a CRC field and a tail field for every two user fields. If the number of user fields is odd, the last user field forms a single group, followed by a CRC field and a tail field. For RUs containing fewer than 106 subcarriers, a specific field portion contains user fields corresponding to the RU. For RUs containing 106 or more subcarriers, a specific field portion contains one or more user fields corresponding to the RU.

[0123] The concept of Content Channels (CCs) is further introduced in the 802.11ax protocol. When the bandwidth is 40 MHz or greater, a signal field may be transmitted in two Content Channels (CCs). The resource unit allocation subfield within the signal field is divided into a first and a second part. The first part of the resource unit allocation subfield is transmitted in CC1, and the second part is transmitted in CC2. Correspondingly, the user field corresponding to the first part of the resource unit allocation subfield is transmitted in CC1, and the user field corresponding to the second part of the resource unit allocation subfield is transmitted in CC2.

[0124] For example, in the schematic diagram of the signal field structure shown in Figure 5B, odd-numbered resource unit allocation subfields in the signal field are transmitted at CC1, and the user fields corresponding to the odd-numbered resource unit allocation subfields are also transmitted at CC1. Even-numbered resource unit allocation subfields in the signal field are transmitted at CC1, and the user fields corresponding to the even-numbered resource unit allocation subfields are also transmitted at CC2.

[0125] Specifically, as shown in Figure 5B, resource unit allocation subfields 1, 3, and 5 are transmitted in CC1, and resource unit allocation subfields 2, 4, and 6 are transmitted in CC2. User fields 1 through 3 corresponding to resource unit allocation subfield 1 are transmitted in CC1, user fields 4 and 5 corresponding to resource unit allocation subfield 2 are transmitted in CC2, user field 6 corresponding to resource unit allocation subfield 3 is transmitted in CC1, user field 7 corresponding to user field 4 is transmitted in CC2, and user field 8 corresponding to resource unit allocation subfield 5 is transmitted in CC1. The number of user fields corresponding to resource unit allocation subfield 6 is 0, meaning that resource unit allocation subfield 6 does not correspond to any user fields.

[0126] The user field contains an association identifier (AID). An STA receiving a PPDU retrieves the STA's user field based on the AID and retrieves the RU indicated by the resource unit allocation subfield corresponding to the user field in order to determine which RU to allocate to the STA.

[0127] Multiple RU allocation modes are configured for the resource unit allocation subfields shown in Table 1, but only one RU can be allocated to one or more stations, and multiple consecutive or non-consecutive RUs cannot be allocated to one or more stations. For example, suppose there are three RUs, RU1, RU2, and RU3, and the channel conditions for RU1 and RU3 are better than those for RU2. In the ideal case, RU1 and RU3 could be allocated to the same user. However, with the resource unit allocation subfield instruction scheme shown in Table 1, only either RU1 or RU3 can be allocated to the same user, and RU1 and RU3 cannot be allocated to the same user. This shows that the flexibility of RU allocation is low and the spectrum utilization rate is also low.

[0128] Figure 5C is a schematic diagram of the structure of a PPDU according to one embodiment of the present application. The PPDU includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF), a Legacy Signal Field (L-SIG), a Repetitive Legacy Signal Field (RL-SIG), a Universal Signal Field (U-SIG), an Extremely High Throughput Signal Field (EHT-SIG), or an EHT Short Training Field (EHT-STF), an EHT Long Training Field (EHT-LTF), and data. The L-STF, L-LTF, L-SIG, RL-SIG, U-SIG, EHT-SIG, EHT-STF, and EHT-LTF are part of the structure within the physical layer header (or preamble portion) of the PPDU.

[0129] L-STF, L-LTF, and L-SIG may be understood as legacy preamble fields and are used to ensure the coexistence of new and legacy devices. RL-SIG is used to enhance the reliability of legacy signal fields.

[0130] The U-SIG and EHT-SIG are signal fields. The U-SIG is used to carry some general information, such as information indicating the PPDU version, uplink / downlink information, information indicating the frequency domain bandwidth of the PPDU, and puncturing indication information. The EHT-SIG includes information indicating resource allocation, information indicating data demodulation, etc. The structure of the EHT-SIG is similar to the structure of the HE-SIG in 802.11ax shown in Figure 5A. The common fields of the EHT-SIG do not include the intermediate 26-tone RU indication subfield.

[0131] It should be noted that in this embodiment of the present application, the fields in the PPDU in the 802.11be scenario are used as illustrative examples. The fields in the PPDU referred to in this embodiment of the present application are not limited to fields related to 802.11be, and the fields in the PPDU referred to in this embodiment of the present application may alternatively be fields related to later versions of the standard than 802.11be.

[0132] The 802.11be standard under discussion supports a maximum bandwidth of 320 MHz. In the 802.11be standard, the possible resource unit allocation schemes used when the bandwidth is 20 MHz or 40 MHz are the same as the aforementioned possible resource unit allocation schemes used when the bandwidth is 20 MHz or 40 MHz in the 802.11ax standard. The bandwidth in the embodiments of this application is the bandwidth for transmitting PPDU.

[0133] When the bandwidth is 160 MHz, the bandwidth may be considered as four copies of a 40 MHz tone plan, with no intermediate 26-tone RUs. The entire bandwidth may include 2 * 996-tone RUs, or it may include various combinations of 26-tone RUs, 52-tone RUs, 106-tone RUs, 242-tone RUs, 484-tone RUs, or 996-tone RUs.

[0134] Similarly, when the bandwidth is 320 MHz, the entire bandwidth may be considered as two copies of a 160 MHz tone plan. The entire bandwidth may include all 4*996-tone RUs, or it may include various combinations of 26-tone RUs, 52-tone RUs, 106-tone RUs, 242-tone RUs, 484-tone RUs, or 996-tone RUs.

[0135] All the aforementioned tone plans are based on 242-tone RU units. The left side of the diagram may be considered to represent the lowest frequencies, and the right side may be considered to represent the highest frequencies. The 242-tone RUs may be numbered from left to right as follows: 1st 242-tone RU, 2nd 242-tone RU, 3rd 242-tone RU, and so on. Alternatively, the 484-tone RUs may be numbered as follows: 1st 484-tone RU, 2nd 484-tone RU, and so on.

[0136] For example, if the bandwidth is 80 MHz, and the 80 MHz bandwidth contains two 484-tone RUs, then, in ascending order of frequency, the first 40 MHz subblock of the 80 MHz bandwidth corresponds to the first 484-tone RU, and the second 40 MHz subblock of the 80 MHz bandwidth corresponds to the second 484-tone RU. If the 80 MHz bandwidth contains four 242-tone RUs, then the first to fourth 20 MHz subblocks of the 80 MHz bandwidth correspond to the first to fourth 242-tone RUs, respectively, in ascending order of frequency.

[0137] To improve the flexibility of RU allocation and enhance frequency utilization efficiency, relevant technologies provide strategies that can support the synthesis of multiple RUs into a single RU and the allocation of RUs to one or more stations. RUs obtained by synthesizing multiple RUs may be called multiple resource units (MRUs).

[0138] Related technologies provide a method for combining several RUs into a MRU. Two or more RUs can be combined into a single MRU and allocated to one or more stations.

[0139] To avoid overly complex RU synthesis instructions due to overly flexible synthesis, RU synthesis adheres to the following rules: (1) Small and large RUs are not synthesized. (2) Synthesis of small RUs spanning 20 MHz is not supported. (3) Small RUs to be synthesized must be continuous.

[0140] The synthesis of large RUs may include: a 484-tone RU and a 242-tone RU being synthesized into a 484+242-tone RU; a 996-tone RU and a 484-tone RU being synthesized into a 994+484-tone RU; two 996-tone RUs and a 484-tone RU being synthesized into a 2*994+484-tone RU; and three 996-tone RUs and a 484-tone RU being synthesized into a 3*994+484-tone RU. The frequency domain resource corresponding to a 484+242-tone RU is 60MHz. The frequency domain resource corresponding to a 994+484-tone RU is 120MHz. The frequency domain resource corresponding to two*994+484-tone RUs is 200MHz. The frequency domain resource corresponding to three*994+484-tone RUs is 280MHz. It can be understood that 484+242-tone RU, 994+484-tone RU, 2*994+484-tone RU, and 3*994+484-tone RU are all MRUs.

[0141] In this application, MRUs are classified according to the two RUs that form the MRU. For example, an MRU obtained by combining a 484-tone RU and a 242-tone RU (e.g., a 484+242-tone RU) is an MRU or an MRU composite type. An MRU obtained by combining a 484-tone RU and a 996-tone RU (e.g., a 484+996-tone RU) is another composite type. RUs forming the same type of MRU have different frequency positions, and each type of MRU may include multiple composite cases. For example, when the bandwidth is 80 MHz, in a 484+242-tone RU obtained by combining a 484-tone RU and a 242-tone RU, the 484-tone RU and the 242-tone RU may have different frequency positions. Thus, a 484+242-tone RU includes multiple composite cases.

[0142] Specifically, for OFDMA transmissions with a bandwidth of 80 MHz, the supported MRU synthesis types are shown in Table 2. Supported MRU synthesis types may include the synthesis of 484-tone RUs and 242-tone RUs into a 484+242-tone RU. An 80 MHz bandwidth corresponds to four 242-tone RUs. Three of the four 242-tone RUs belong to the 484+242-tone RU, and the other 242-tone RUs belong to the non-MRU. In ascending order of frequency, the position of the non-MRU can be any one of the first, second, third, or fourth 242-tone RUs. Thus, there are four synthesis examples of the 484+242-tone RU. [Table 2]

[0143] As shown in Table 3, for OFDMA transmissions with a bandwidth of 160 MHz, the supported MRU synthesis types include the synthesis of 484-tone RUs and 242-tone RUs into a 484+242-tone RU, and the synthesis of 996-tone RUs and 484-tone RUs into a 994+484-tone RU. The equivalent bandwidth of the 994+484-tone RU is 120 MHz. [Table 3]

[0144] In OFDMA transmissions with a bandwidth of 240 MHz, if the 240 MHz bandwidth is a continuous 240 MHz in the spectrum, large RU synthesis is permitted only for a 160 MHz subblock formed by two consecutive 80 MHz subblocks. In OFDMA transmissions with a bandwidth of 240 MHz, the supported RU synthesis cases and RU synthesis cases are the same as those in OFDMA transmissions with a bandwidth of 160 MHz.

[0145] In OFDMA transmissions with a bandwidth of 320 MHz, supported synthesis cases may include the synthesis of three 996-tone RUs into a 3*996-tone RU, the synthesis of three 996-tone RUs and one 484-tone RU into a 3*996+484-tone RU, and supported RU synthesis cases in OFDMA transmissions with a bandwidth of 160 MHz. The equivalent bandwidth of a 3*996-tone RU is 240 MHz, and the equivalent bandwidth of a 3*996+484-tone RU is 280 MHz. RU synthesis cases supported by 160 MHz can be performed at a primary or secondary 160 MHz in a 320 MHz or 160+160 MHz bandwidth.

[0146] For OFDMA transmissions with bandwidths of 80MHz, 160MHz, 240MHz, or 320MHz, it should be understood that the MRU synthesis types permitted for an 80MHz bandwidth are permitted in each 80MHz subblock.

[0147] It is clear that the currently supported MRU synthesis types mentioned above do not encompass all possible RU synthesis methods. While RU synthesis would be more flexible if all possible substitutions and synthesis methods for RU were provided, it should be understood that this would also increase its complexity.

[0148] Embodiments of this application illustrate possible MRU synthesis types in the range of 80 MHz to 320 MHz. For example, Table 2 shows several possible MRU synthesis types. [Table 4]

[0149] In Table 4, the first column shows the MRU combination type, and the numbers in the table indicate the size of each RU included in the MRU. For example, 484+996 indicates that the MRU contains a 484-tone RU and a 996-tone RU. The middle column shows the equivalent bandwidth of the MRU, and the third column shows the transmit bandwidth of the MRU. For example, with a transmit bandwidth of 160 MHz, the MRU combination type may be "242+242+996" or "484+996".

[0150] Based on the aforementioned MRU synthesis types, embodiments of this application provide several MRU instruction strategies.

[0151] In the MRU indication strategy of the embodiments of this application, the resource unit allocation subfield in the signal field of the PPDU may indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to one MRU. The resource unit allocation subfield may indicate the resource unit allocation status by the index shown in Table 5. The index in Table 5 may be the preliminary index in Table 1. [Table 5A] [Table 5B]

[0152] The aforementioned Table 5 may be presented in a table by combining them into a single row, or entries with 1 to 8 contributing user fields may be presented in a table by combining them into a single row. The format of the table presentation is not limited in this application.

[0153] It should be understood that the sequential numbers 1, 2, 3, ..., 9 in index 1, index 2, index 3, ..., and index 9 do not indicate that the index is 1, 2, 3, ..., and 9. The sequential numbers 1, 2, 3, ..., and 9 in index 1, index 2, index 3, ..., and index 9 are used solely to identify that the aforementioned nine indices are different indices. The specific representation of the indices is not limited in this application.

[0154] When a resource unit allocation subfield can indicate resource unit allocation status by using any one of nine entries, it indicates that the 242-tone RU corresponding to the frequency domain resource corresponding to the resource unit allocation subfield belongs to one MRU, and the number of user fields to which the MRU contributes to user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields contributing to user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields corresponding to the resource unit allocation subfield in the EHT-SIG content channel where the resource unit allocation subfield is located. The user fields corresponding to the resource unit allocation subfield are the user fields of the user to whom the resource unit indicated by the resource unit allocation subfield is allocated.

[0155] Optionally, each index from index 2 to index 9 includes an RU allocation instruction portion and a user field instruction portion. In the embodiment, the RU allocation instruction portions from index 2 to index 9 are the same, all indicating that a 242-tone RU corresponding to a resource unit allocation subfield belongs to one MRU. The user field instruction portions from index 2 to index 9 are different, separately indicating that one to eight user fields contribute to the same user-specific field in the same EHT-SIG content channel as this resource unit allocation subfield. The user field instruction portion may be, for example, 3 bits. The RU allocation instruction portion for index 1, indicating zero user fields, is different from the RU allocation instruction portions from indexes 2 to 9, which indicate one to eight user fields.

[0156] Specifically, the structure of indices 2 to 9 may be knkn-1...k2k1y2y1y0, where knkn-1...k2k1 is the RU allocation instruction part, n is the number of bits in the user field instruction part, and y2y1y0 is the user field instruction part, which is 3 bits and separately indicates 1 to 8 user fields.

[0157] A station receiving a PPDU can determine, based on the resource unit allocation subfield, that a 242-tone RU corresponding to a resource unit allocation subfield belongs to an MRU, and can determine the RUs that make up the MRU based on the number of resource unit allocation subfields in the resource unit allocation subfield corresponding to each 80MHz subblock that indicate that the corresponding 242-tone RU belongs to that MRU.

[0158] Specifically, Figure 6A is a schematic flowchart of the PPDU transmission method. The aforementioned measures can be implemented by using the following steps of the PPDU transmission method.

[0159] 601. The AP generates the PPDU.

[0160] A PPDU contains multiple resource unit allocation subfields, each of which contains a resource unit allocation subfield corresponding to an MRU, where the resource unit allocation subfields corresponding to the MRU indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80MHz subblocks in the bandwidth for transmitting the PPDU is used to determine or indicate the type of MRU.

[0161] 602. The AP sends a PPDU.

[0162] In response, STA receives the PPDU.

[0163] 603. The STA determines the type of RU for the MRU to transmit the PPDU based on the number of resource unit allocation subfields indicating that the corresponding 242-tone RU belongs to the MRU in the resource unit allocation subfield corresponding to each 80MHz subblock.

[0164] It should be understood that the aforementioned PPDU transmission method is explained using an embodiment in which the AP transmits the PPDU to the STA. This method is also applicable to scenarios in which the AP transmits the PPDU to the AP and scenarios in which the STA transmits the PPDU to the STA.

[0165] STA determines the type of RU that is the MRU to transmit the PPDU in order to determine which RUs form the MRU.

[0166] The following provides a policy such that, when the bandwidth is 80MHz, 160MHz, 240MHz, or 320MHz, the STA determines which RUs form an MRU based on the number of resource unit allocation subfields that indicate that the corresponding 242-tone RU belongs to an MRU in the resource unit allocation subfield corresponding to each 80MHz subblock.

[0167] When the bandwidth is 80 MHz, there is only one mode of MRUs that can be included. The 80 MHz bandwidth can include a 242+484-tone RU obtained by combining a 242-tone RU and a 484-tone RU. In this case, the four 242-tone RUs in the 80 MHz bandwidth include three 242-tone RUs that belong to the MRU, and the other 242-tone RUs are non-MRUs. The non-MRU 242-tone RU is one of the first, second, third, and fourth 242-tone RUs. There are four possible cases for the 242-tone RUs and 484-tone RUs that form the 242+484-tone RU. Figure 6B is a schematic scenario diagram of an MRU synthesis case included in 80 MHz. As shown in Figure 6B, a 242+484-tone RU may be obtained by combining a first 484-tone RU and a third 242-tone RU (the first to third 242-tone RUs) in an 80 MHz bandwidth, or by combining a first 484-tone RU and a fourth 242-tone RU (the first, second, and fourth 242-tone RUs) in an 80 MHz bandwidth, or by combining a second 484-tone RU and a first 242-tone RU (the first, third, and fourth 242-tone RUs) in an 80 MHz bandwidth, or by combining a second 484-tone RU and a second 242-tone RU (the second, third, and fourth 242-tone RUs) in an 80 MHz bandwidth.

[0168] Thus, if the STA reads that the three resource unit allocation subfields indicate that the corresponding 242-tone RU belongs to the MRU in an 80 MHz bandwidth, the STA may determine that the three 242-tone RUs corresponding to the three resource unit allocation subfields form a 242+484-tone RU. In this way, when the bandwidth is 80 MHz, an MRU containing multiple RUs may be allocated to one or more stations.

[0169] It should be understood that the non-MRU in this embodiment of the present application may be a single 242-tone RU, a plurality of small RUs, or empty.

[0170] Figure 6C is a schematic scenario diagram of an MRU synthesis example included in 160 MHz. As shown in Figure 6C, when the bandwidth is 160 MHz, there are three modes of MRU included. Mode 1: A 160MHz bandwidth contains one 242+484-tone RU. The 160MHz bandwidth contains two 80MHz subblocks, and the 242+484-tone RU can be located in one of the 80MHz subblocks. Each 80MHz subblock contains four possible combination cases of the 242+484-tone RU, as shown in Figure 6B. There are 4+4=8 possible combination cases of the 242-tone RU and 484-tone RU that form the 242+484-tone RU.

[0171] Mode 2: The 160MHz bandwidth includes two 242+484-tone RUs. The 160MHz bandwidth includes two 80MHz subblocks, each of which contains one 242+484-tone RU, and each 242+484-tone RU within each 80MHz subblock has four possible combination cases as shown in Figure 6B. There are 4*4=16 possible combination cases of the 242-tone RU and 484-tone RU that form each of the two 242+484-tone RUs.

[0172] Mode 3: The 160MHz bandwidth contains one 996+484-tone RU. Since the positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU differ in the 160MHz bandwidth, there are four possible combinations of the 996-tone RU and 484-tone RU that form the 996+484-tone RU (4 cases).

[0173] Thus, the STA can determine the MRU synthesis type in a 160 MHz bandwidth according to the MRU synthesis identification method shown in Table 6, in order to allocate an MRU containing multiple RUs to one or more stations when the bandwidth is 160 MHz.

[0174] Specifically, the STA receiving the PPDU can determine the MRU synthesis type based on the number of 242-tone RUs belonging to the MRU in each 80MHz subblock within the 160MHz bandwidth, as indicated by the resource unit allocation subfield. [Table 6]

[0175] If the STA determines, based on the resource unit allocation subfield corresponding to the 160MHz bandwidth, that three 242-tone RUs in the first 80MHz subblock belong to the MRU, and none of the 242-tone RUs in the second 80MHz subblock belong to the MRU, then the STA determines that the 160MHz bandwidth includes one 484+242-tone RU, and that the 484+242-tone RU includes three 242-tone RUs that belong to the MRU.

[0176] If the STA identifies, based on the resource unit allocation subfield corresponding to the 160MHz bandwidth, that three 242-tone RUs in the first 80MHz subblock belong to the MRU and three 242-tone RUs in the second 80MHz subblock belong to the MRU, then the STA determines that the 160MHz bandwidth includes two 484+242-tone RUs, and that each 484+242-tone RU in the 80MHz subblock includes three 242-tone RUs that belong to the MRU in the 80MHz subblock.

[0177] If the STA identifies, based on the resource unit allocation subfield corresponding to the 160MHz bandwidth, that four 242-tone RUs in the first 80MHz subblock belong to the MRU and two 242-tone RUs in the second 80MHz subblock belong to the MRU, then the STA determines that the 160MHz bandwidth contains one 996+484-tone RU. The 996+484-tone RU contains the four 242-tone RUs in the first 80MHz subblock and the two 242-tone RUs in the second 80MHz subblock that belong to the MRU. Alternatively, if the STA identifies, based on the resource unit allocation subfield corresponding to the 160MHz bandwidth, that two 242-tone RUs in the first 80MHz subblock belong to the MRU and four 242-tone RUs in the second 80MHz subblock belong to the MRU, then the STA determines that the 160MHz bandwidth includes one 996+484-tone RU. The 996+484-tone RU includes two 242-tone RUs belonging to the MRU in the first 80MHz subblock and four 242-tone RUs in the second 80MHz subblock.

[0178] Similarly, Figure 6D is a schematic scenario diagram of an MRU synthesis example included in 240 MHz. When the bandwidth is 240 MHz, there are seven modes of MRU included. Modes 1 through 4 can be understood according to Figure 6D with reference to the aforementioned related explanations according to Figures 6B and 6C.

[0179] In Mode 4, when the bandwidth is a continuous 240 MHz, the 240 MHz bandwidth may include a 996+484-tone RU obtained by combining a 996-tone RU and a 484-tone RU. The 996+484-tone RU may be in a 160 MHz bandwidth including a first 80 MHz subblock and a second 80 MHz subblock (four possible combination cases), or in a 160 MHz bandwidth including a second 80 MHz subblock and a third 80 MHz subblock (four possible combination cases). There are eight possible combination cases of the 484-tone RU and 996-tone RU that form the 996+484-tone RU (8 cases).

[0180] In Mode 5, when the bandwidth is a continuous 240 MHz, the 240 MHz bandwidth may include a 996+484-tone RU obtained by combining a 996-tone RU and a 484-tone RU, and a 484+242-tone RU obtained by combining a 484-tone RU and a 242-tone RU. The 996+484-tone RU may be in a 160 MHz bandwidth including a first 80 MHz subblock and a second 80 MHz subblock (four possible combinations), or in a 160 MHz bandwidth including a second 80 MHz subblock and a third 80 MHz subblock (four possible combinations). The 484+242-tone RU may be in an 80 MHz band that does not cover the 996+484-tone RU (four possible combinations). In this case, when the 240MHz bandwidth includes 996+484-tone RUs and 484+242-tone RUs, there are 2*4*4=32 possible cases.

[0181] In Mode 6, when the bandwidth is a continuous 240 MHz, the 240 MHz bandwidth contains two 996+484-tone RUs. Each 996+484-tone RU contains a 484-tone RU and a 996-tone RU. There are two possible combination cases for Mode 6.

[0182] In Mode 7, when the bandwidth is 240 MHz, the 240 MHz bandwidth may contain 2*996+484-tone RUs. The 2*996-tone RUs that form the 2*996+484-tone RU are located in consecutive 160 MHz segments. The 484-tone RUs that form the 2*996+484-tone RU may be located in four different 80 MHz subblocks, and Mode 7 includes four possible composite cases (4 cases).

[0183] The STA can identify the MRU synthesis type and the RU synthesis examples forming the MRU in order to allocate an MRU containing multiple RUs to one or more stations when the bandwidth is 240 MHz, according to the MRU synthesis identification method shown in Table 7. It should be understood that the number of MRUs in the 80 MHz subblock in each row of Table 7 may be swapped. When the number of MRUs in the 80 MHz subblock in the same row is swapped, the corresponding MRU synthesis type remains unchanged. [Table 7]

[0184] For example, when STA identifies, based on the resource unit allocation subfield corresponding to the 240MHz bandwidth, that the first 80MHz subblock in the 240MHz bandwidth contains three 242-tone RUs belonging to the MRU, the second 80MHz subblock contains three 242-tone RUs belonging to the MRU, and the third 80MHz subblock contains zero 242-tone RUs belonging to the MRU, STA determines that the 240MHz bandwidth contains two 484+242-tone RUs. One 484+242-tone RU is located at the lowest 60MHz frequency of the first 80MHz subblock in the 240MHz bandwidth, and the other 484+242-tone RU is located at the highest 20MHz frequency of the first 80MHz subblock in the 240MHz bandwidth and the lowest 40MHz frequency of the second 80MHz subblock in the 240MHz bandwidth.

[0185] Alternatively, when the STA identifies, based on the resource unit allocation subfield corresponding to the 240MHz bandwidth, that the first 80MHz subblock in the 240MHz bandwidth contains 0 242-tone RUs belonging to the MRU, the second 80MHz subblock contains 3 242-tone RUs belonging to the MRU, and the third 80MHz subblock contains 3 242-tone RUs belonging to the MRU, the STA determines that the 240MHz bandwidth contains two 484+242-tone RUs. One 484+242-tone RU is located at the lowest 60MHz frequency of the second 80MHz subblock in the 240MHz bandwidth, and the other 484+242-tone RU is located at the highest 20MHz frequency of the second 80MHz subblock in the 240MHz bandwidth and the lowest 40MHz frequency of the third 80MHz subblock in the 240MHz bandwidth.

[0186] In another example, when the STA identifies, based on the resource unit allocation subfield corresponding to the 240MHz bandwidth, that the first 80MHz subblock in the 240MHz bandwidth contains four 242-tone RUs belonging to the MRU, the second 80MHz subblock contains four 242-tone RUs belonging to the MRU, and the third 80MHz subblock contains four 242-tone RUs belonging to the MRU, the STA determines that the 240MHz bandwidth contains two 996+484-tone RUs. However, the STA cannot identify the 484-tone RU and 996-tone RU that form each 996+484-tone RU according to Table 7. When all 12 242-tone RUs in the 240MHz bandwidth belong to the MRU, there is more than one possible RU synthesis case.

[0187] Figure 6E is another schematic scenario diagram of an MRU synthesis example included in 160 MHz. As shown in Figure 6E, the first to fourth 242-tone RUs of the first 80 MHz subblock and the third and fourth 242-tone RUs of the second 80 MHz subblock may form a 996+484-tone RU, and the first and second 242-tone RUs of the second 80 MHz subblock and the first to fourth 242-tone RUs of the third 80 MHz subblock may form a 996+484-tone RU. Alternatively, the first to fourth 242-tone RUs of the first 80MHz subblock and the first and second 242-tone RUs of the second 80MHz subblock may form a 996+484-tone RU, or the third and fourth 242-tone RUs of the second 80MHz subblock and the first to fourth 242-tone RUs of the third 80MHz subblock may form a 996+484-tone RU.

[0188] According to the index in Table 5, when 240 MHz of bandwidth for transmitting a PPDU contains two 996+484-tone RUs, it is not possible to identify the specific 996-tone RU and the specific 484-tone RU that form the 996+484-tone RU. In this case, the STA receiving the PPDU cannot determine the specific 996-tone RU and the specific 484-tone RU that form the 996+484-tone RU allocated to the STA based on the resource unit allocation subfield. In this case, the AP cannot allocate 2*996+484-tone RUs or 996+484-tone RUs to one or more stations.

[0189] Figures 6F-1 to 6F-3 are schematic scenario diagrams of MRU synthesis examples included in 320 MHz. As shown in Figures 6F-1 to 6F-3, when the bandwidth is 320 MHz, there are 13 modes in the included MRU. Modes 1 to 10 can be understood according to Figures 6F-1 to 6F-3, with reference to the relevant explanations described above according to Figures 6B to 6D.

[0190] In Mode 11, if the next-generation communication standard (e.g., 802.11be) allows a 320MHz bandwidth to include 2*996+484-tone RUs: If the 2*996-tone RUs forming the 2*996+484-tone RU need to be located within a continuous 160MHz, the 484-tone RUs forming the 2*996+484-tone RU may be located within eight different 40MHz subblocks, resulting in eight possible combination cases in Mode 11 (8 cases). If the 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RU need to be located within a continuous 240MHz, the 484-tone RUs forming the 2*996+484-tone RU may be located within eight different 40MHz subblocks, resulting in four possible combination cases in Mode 11 (4 cases).

[0191] In Mode 12, if the next-generation communication standard (e.g., 802.11be) allows a 320MHz bandwidth to include 2*996+484-tone RUs and 484+242-tone RUs: If the 2*996-tone RUs forming the 2*996+484-tone RU need to be located within a continuous 160MHz, there are 8 possible combinations of the 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RU. The 484+242-tone RU may be located at 80MHz, which does not cover the 2*996+484-tone RUs, and there are 4 possible combinations of the 484+242-tone RUs within a single 80MHz subblock. Thus, in Mode 12, there are a total of 8*4=32 possible combinations.

[0192] In Mode 13, if the next-generation communication standard (e.g., 802.11be) allows a 320MHz bandwidth to include 2*996+484-tone RUs and 996+484-tone RUs, and the RUs within the MRU group must be continuous, then there are two possible synthesis cases in Mode 13. In one possible synthesis case, the 2*996+484-tone RU is obtained by synthesizing a 2*996-tone RU corresponding to the lowest 160MHz frequency in the 320MHz bandwidth and a 484-tone RU corresponding to the lowest 40MHz frequency of a third 80MHz subblock, and the 996+484-tone RU is obtained by synthesizing a 484-tone RU corresponding to the highest 40MHz frequency of a third 80MHz subblock in the 320MHz bandwidth and a 996-tone RU corresponding to a fourth 80MHz subblock. In another possible synthesis example, a 996+484-tone RU is obtained by synthesizing a 996-tone RU corresponding to the first 80MHz subblock in a 320MHz bandwidth and a 484-tone RU corresponding to the lowest 40MHz frequency of the second 80MHz subblock, while a 2*996+484-tone RU is obtained by synthesizing a 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock and 996-tone RUs corresponding to the third and fourth 80MHz subblocks.

[0193] STA can identify the MRU synthesis type and the RU synthesis examples forming the MRU in order to allocate multiple RUs to one or more stations when the bandwidth is 320 MHz, according to the table of methods for identifying MRU synthesis shown in Table 8. It should be understood that the number of MRUs in the 80 MHz subblock in each row of Table 8 may be swapped. When the number of MRUs in the 80 MHz subblock in the same row is swapped, the corresponding MRU synthesis type remains unchanged. [Table 8]

[0194] For example, when STA identifies, based on the resource unit allocation subfield corresponding to the 320MHz bandwidth, that the first 80MHz subblock in the 320MHz bandwidth contains four 242-tone RUs belonging to the MRU, the second 80MHz subblock contains two 242-tone RUs belonging to the MRU, the third 80MHz subblock contains zero 242-tone RUs belonging to the MRU, and the fourth 80MHz subblock contains zero 242-tone RUs belonging to the MRU, STA determines that the 320MHz bandwidth contains one 996+484-tone RU. The 996+484-tone RU is located at the lowest 40MHz frequency of the first 80MHz subblock and the lowest 40MHz of the second 80MHz subblock in the 320MHz bandwidth.

[0195] Alternatively, when the STA identifies, based on the resource unit allocation subfield corresponding to the 320MHz bandwidth, that the first 80MHz subblock in the 240MHz bandwidth contains 0 242-tone RUs belonging to the MRU, the second 80MHz subblock contains 0 242-tone RUs belonging to the MRU, the third 80MHz subblock contains 4 242-tone RUs belonging to the MRU, and the fourth 80MHz subblock contains 2 242-tone RUs belonging to the MRU, the STA determines that the 240MHz bandwidth contains one 996+484-tone RU. The 996+484-tone RU is located at the lowest 40MHz frequency of the third and fourth 80MHz subblocks in the 320MHz bandwidth.

[0196] As specified in next-generation communication standards (e.g., 802.11be), when a 320MHz bandwidth may contain 2*996+484-tone RUs and 996+484-tone RUs, only one synthesis example is supported.

[0197] In the Mode 13 scenario, Figure 6G is a schematic scenario diagram of an MRU synthesis example contained within 320 MHz. When the bandwidth for transmitting the PPDU is 320 MHz, the 2*996+484-tone RUs are located at the lowest frequency of 200 MHz within the 320 MHz bandwidth, and the 996+484-tone RUs are located at the highest frequency of 160 MHz within the 320 MHz bandwidth. In the signal field of the PPDU, the resource unit allocation subfields corresponding to the 1st to 16th 242-tone RUs within the 320 MHz bandwidth may be indicated by one index in Table 5 to show that the corresponding 242-tone RUs belong to the MRU. Thus, an STA receiving the PPDU can determine, based on resource unit allocation subfields 1 to 16 in the signal field and by referring to Table 8, that all 20MHz subblocks 1 to 16 within the 320MHz bandwidth correspond to MRUs, and that the 320MHz bandwidth contains one 2*996+484-tone RU and one 996+484-tone RU. However, the STA cannot determine, based on the resource unit allocation subfields, which 10 specific 242-tone RUs belong to the 2*996+484-tone RUs and which 6 specific 242-tone RUs belong to the 996+484-tone RUs within the 320MHz bandwidth.

[0198] For example, if resource unit allocation subfields 1 to 16 indicate that all 1 to 16 242-tone RUs within a 320MHz bandwidth correspond to MRUs, then it is possible that the 1 to 10 242-tone RUs belong to 2*996+484-tone RUs and the 11 to 16 242-tone RUs belong to 996+484-tone RUs, or that the 1 to 6 242-tone RUs belong to 996+484-tone RUs and the 7 to 16 242-tone RUs belong to 2*996+484-tone RUs. In this case, the STA receiving the PPDU cannot accurately determine the RU synthesis case.

[0199] In the indexing scheme of Table 5, when the 320MHz bandwidth for transmitting a PPDU includes 2*996+484-tone RUs and 996+484-tone RUs, it is not possible to accurately indicate the 2*996-tone RUs and 484-tone RUs that form the 2*996+484-tone RUs and 996-tone RUs, nor the 996-tone RUs and 484-tone RUs that form the 996+484-tone RUs. In this case, among the STAs receiving the PPDU, the STA to which the 2*996+484-tone RUs are allocated cannot determine the specific 2*996-tone RUs and specific 484-tone RUs that form the 2*996+484-tone RUs allocated to the STA based on the resource unit allocation subfield. Therefore, an AP cannot allocate a 2*996+484-tone RU or a 996+484-tone RU to one or more stations.

[0200] In another MRU instruction strategy, the resource unit allocation subfield indicates the specific MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, and indicates the number of user fields that contribute to user-specific fields within the same EHT-SIG content channel as the resource unit allocation subfield. Specifically, the resource unit allocation subfield may be indicated by the index in Table 9. [Table 9A] [Table 9B] [Table 9C]

[0201] Each index in Table 9 indicates the MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, and shows that the number of user fields contributed to the user-specific fields within the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields contributing to the user-specific fields within the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields corresponding to the resource unit allocation subfield within the EHT-SIG content channel where the resource unit allocation subfield is located. The user fields corresponding to the resource unit allocation subfield are the user fields of the user to whom the resource unit indicated by the resource unit allocation subfield is allocated.

[0202] Optionally, any index in Table 9 indicating that the number of user fields is between 1 and 8 may include both the RU allocation instruction portion and the user field instruction portion. The RU allocation instruction portion indicates the MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs. The user field instruction portion indicates the number of user fields that contribute to the user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield.

[0203] The user field indication portion may be, for example, 3 bits, and indicates that the number of user fields contributing to user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield is one between 1 and 8.

[0204] Specifically, any index structure in Table 9 that indicates the number of user fields is between 1 and 8 may be knkn-1...k2k1y2y1y0, where knkn-1...k2k1 is the RU allocation instruction part, n is the number of bits in the RU allocation instruction part, and y2y1y0 is the user field instruction part, which is 3 bits and separately indicates 1 to 8 user fields.

[0205] In a particular example, when the bandwidth for transmitting a PPDU is 320 MHz, the first to tenth 242-tone RUs belong to one 2*996+484-tone RU, and the eleventh to sixteenth 242-tone RUs belong to one 996+484-tone RU. In the signal field of the PPDU, the resource unit allocation subfields corresponding to the first to tenth 242-tone RUs in the 320 MHz bandwidth may use the indices in Table 9, indices 19 to 27, to indicate that the corresponding 242-tone RUs belong to one 2*996+484-tone RU. The resource unit allocation subfields corresponding to the eleventh to sixteenth 242-tone RUs in the 320 MHz bandwidth may use the indices in Table 9, indices 1 to 9, to indicate that the corresponding 242-tone RUs belong to one 996+484-tone RU.

[0206] Thus, an STA receiving a PPDU can determine, based on resource unit allocation subfields 1 to 16 in the signal field, that the first to tenth 242-tone RUs belong to one 2*996+484-tone RU and that the eleventh to sixteenth 242-tone RUs belong to one 996+484-tone RU within a 320 MHz bandwidth. It can be seen that such a policy can accurately represent cases where, when the bandwidth for transmitting the PPDU is 320 MHz, the first to tenth 242-tone RUs belong to one 2*996+484-tone RU and the eleventh to sixteenth 242-tone RUs belong to one 996+484-tone RU.

[0207] In other words, such a strategy can accurately indicate, by index in Table 9, the resource unit allocation subfield, when the 320MHz bandwidth for transmitting the PPDU includes 2*996-tone RUs and 996+484-tone RUs, precisely which 2*996-tone RUs and 484-tone RUs form the 2*996+484-tone RUs, as well as which 996-tone RUs and 484-tone RUs form the 996+484-tone RUs. In this case, among the STAs receiving the PPDU, the STA to which the 2*996+484-tone RUs are allocated can determine, based on the resource unit allocation subfield, which 2*996-tone RUs and which 484-tone RUs form the 2*996+484-tone RU allocated to the STA.

[0208] In another example, when the bandwidth for transmitting the PPDU is 240 MHz, in ascending order of frequency, the first to sixth 242-tone RUs belong to one 484+996-tone RU, and the seventh to twelfth 242-tone RUs belong to one 996+484-tone RU. The first to fourth 242-tone RUs may be understood as the first to fourth 242-tone RUs in the first 80 MHz subblock, the fifth to eighth 20 MHz subblocks may be understood as the first to fourth 242-tone RUs in the second 80 MHz subblock, and the ninth to twelfth 20 MHz subblocks may be understood as the first to fourth 242-tone RUs in the third 80 MHz subblock.

[0209] The signal field of the PPDU includes resource unit allocation subfields 1 to 12, each corresponding to the first to twelfth 242-tone RUs within a 240 MHz bandwidth, which may be indicated by the index in Table 8. Thus, an STA receiving the PPDU can determine, based on resource unit allocation subfields 1 to 12 in the signal field, that the first to twelfth 242-tone RUs within a 240 MHz bandwidth belong to the 996+484-tone RU. From the above explanation corresponding to Figure 6E, it can be seen that there is not a single instance in which each 996+484-tone RU contains a 242-tone RU. For example, the first to fourth 242-tone RUs and the seventh and eighth 242-tone RUs may belong to one 996+484-tone RU, and the fifth and sixth 242-tone RUs and the ninth to twelfth 242-tone RUs may belong to one 996+484-tone RU. Alternatively, the first to sixth 242-tone RUs may belong to one 996+484-tone RU, and the seventh to twelfth 242-tone RUs may belong to one 996+484-tone RU.

[0210] In a policy where the resource unit allocation subfield is indicated by the index in Table 9, when the 240MHz bandwidth contains two (996+484)-tone RUs, the resource unit allocation subfield cannot, by the index in Table 9, indicate the 996-tone RU and 484-tone RU that make up each 996+484-tone RU. The STA receiving the PPDU cannot determine the specific 996-tone RU and the specific 484-tone RU that make up the 996+484-tone RU in the 240MHz bandwidth, and therefore cannot allocate one 996+484-tone RU or two (996+484)-tone RUs to one or more stations.

[0211] Embodiments of this application provide several ways to solve the problem of not being able to accurately represent 2*996+484-tone RUs and 996+484-tone RUs that are included in a 320MHz bandwidth when the resource unit allocation subfield is located.

[0212] In this policy, 2*996+484-tone RU is an MRU containing 2*996-tone RU at low frequencies and 484-tone RU at high frequencies, as well as an MRU containing 484-tone RU at low frequencies and 2*996-tone RU at high frequencies. In this policy, 996+484-tone RU is an MRU containing 996-tone RU at low frequencies and 484-tone RU at high frequencies, as well as an MRU containing 484-tone RU at low frequencies and 996-tone RU at high frequencies.

[0213] In some embodiments, as specified in communication standards (e.g., 802.11be and later standards), 2*996+484-tone RUs and 996+484-tone RUs are not permitted to be included in a contiguous 320MHz bandwidth. Thus, the resource unit allocation subfield does not need to indicate 2*996+484-tone RUs and 996+484-tone RUs within the 320MHz bandwidth. This can resolve the problem of being unable to perform precise instructions.

[0214] In some other embodiments, as specified in communication standards (e.g., 802.11be and standards later than 802.11be), when a 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, there is only one composite example of the 2*996+484-tone RUs and 484-tone RUs that form the 2*996+484-tone RUs, and the 996-tone RUs and 484-tone RUs that form the 996+484-tone RU.

[0215] For example, Figure 7A is a schematic scenario diagram of an MRU synthesis example included in 240 MHz. As specified in the communication standard, when the 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, the 320 MHz bandwidth includes 2*996-tone RUs, 484-tone RUs, 484-tone RUs, and 996-tone RUs in ascending order of absolute frequency. That is, the 2*996-tone RUs corresponding to the first and second 80 MHz subblocks in the 320 MHz bandwidth, and the 484-tone RU corresponding to the first 40 MHz subblock of the third 80 MHz subblock, form the 2*996+484-tone RU, and the 484-tone RU corresponding to the second 40 MHz subblock of the third 80 MHz subblock and the 996-tone RU corresponding to the fourth 80 MHz subblock form the 996+484-tone RU.

[0216] In another example, Figure 7B is a schematic scenario diagram of an MRU synthesis case included in 240 MHz. As specified in the communication standard, when the 320 MHz bandwidth includes 2*996-tone+484 RUs and 996+484-tone RUs, the 320 MHz bandwidth includes, in ascending order of absolute frequency, 996-tone RUs, 484-tone RUs, 484-tone RUs, and 2*996-tone RUs. In other words, the 484-tone RU corresponding to the first 40MHz subblock of the second 80MHz subblock, which forms the 996-tone RU and 996+484-tone RU corresponding to the first 80MHz subblock in the 320MHz bandwidth, form the 996+484-tone RU, and the 484-tone RU corresponding to the second 40MHz subblock of the second 80MHz subblock, as well as the 2*996-tone RU corresponding to the third 80MHz subblock and the fourth 80MHz subblock, form the 996+484-tone RU.

[0217] Naturally, as defined in the communication standards, when a 320MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, the 2*996-tone RUs and 484-tone RUs that form the 2*996+484-tone RUs and 996-tone RUs, as well as the 484-tone RUs that form the 996+484-tone RU, may have other composite examples. This application does not limit the specific permissible composite examples defined in the communication standards.

[0218] Thus, the STA receiving the PPDU only needs to identify that the 320MHz bandwidth contains 2*996-tone RUs and 996+484-tone RUs in order to determine, based on the resource unit allocation subfield, the 2*996-tone RUs and 484-tone RUs that form a 2*996-tone+484 RU, as well as the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU.

[0219] For example, if the resource unit allocation subfield may use the index in Table 5 or the index in Table 9 to indicate that the 320MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, then STA can determine, based on the resource unit allocation subfield, that the 320MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs in order to determine the 2*996-tone RUs and 484-tone RUs that form the 2*996-tone RUs and 484-tone RUs, as well as the 996-tone RUs and 484-tone RUs that form the 996+484-tone RUs.

[0220] In this application, the first 80MHz subblock, the second 80MHz subblock, the third 80MHz subblock, and the fourth 80MHz subblock are obtained by arranging them in ascending order of frequency. Similarly, the Xth 20MHz subblock, the Yth 40MHz subblock, and the Zth 160MHz subblock are also obtained by arranging them in ascending order of frequency, where X, Y, and Z are sequential numbers.

[0221] This embodiment of the present application further provides several indicating strategies for indicating the frequency position of a single RU in an MRU. When a 240 MHz bandwidth for transmitting a PPDU includes an MRU containing a 484-tone RU and a 996-tone RU, an STA receiving the PPDU can accurately determine the specific 484-tone RU and the specific 996-tone RU that make up the MRU.

[0222] Specifically, in this embodiment of the present application, the 484-tone RUs and 996-tone RUs in the 160MHz subblock are numbered. For example, Figure 8A is a schematic diagram of the sequence numbering of a resource unit according to one embodiment of the present application. The four 484-tone RUs in the 160MHz subblock are, in ascending order of absolute frequency, the first 484-tone RU (1st 484-tone RU), the second 484-tone RU (2nd 484-tone RU), the third 484-tone RU (3rd 484-tone RU), and the fourth 484-tone RU (4th 484-tone RU). The RU numbers of the first to fourth 484-tone RUs in the 160MHz subblock are 1, 2, 3, and 4, respectively.

[0223] The two 996-tone RUs within the 160MHz bandwidth are, in ascending order of frequency, the first 996-tone RU (1st 484-tone RU) and the second 996-tone RU (2nd 484-tone RU). The RU numbers of the first and second 996-tone RUs within the 160MHz subblock are 1 and 2, respectively.

[0224] Optionally, the 242-tone RUs and 484-tone RUs within the 80MHz subblock may also be numbered. For example, as shown in Figure 8A, the two 484-tone RUs within the 80MHz subblock are, in ascending order of absolute frequency, the first 484-tone RU (1st 484-tone RU) and the second 484-tone RU (2nd 484-tone RU). The RU numbers of the first and second 484-tone RUs within the 80MHz subblock are 1 and 2, respectively. The four 242-tone RUs in the 80MHz subblock are, in ascending order of absolute frequency, the 1st 242-tone RU, the 2nd 242-tone RU, the 3rd 242-tone RU, and the 4th 242-tone RU. The RU numbers of the 1st to 4th 242-tone RUs in the 80MHz subblock are 1, 2, 3, and 4, respectively.

[0225] In a first indicating strategy for indicating the frequency position of a single RU in an MRU provided in this embodiment of the present application, in the signal field of the PPDU, the resource unit allocation subfield indicating the MRU including a 484-tone RU and a 996-tone RU indicates the number of RUs of the 484-tone RU and the 996-tone RU that form the MRU in the 160 MHz bandwidth in which the MRU is located, in order to indicate the frequency position of the 484-tone RU and the 996-tone RU that form the MRU in the 160 MHz subblock to which the 996+484-tone RU belongs.

[0226] Based on the aforementioned first instruction policy indicating the frequency position of a single RU in an MRU, one embodiment of the present application further provides a policy for determining the frequency positions of 484-tone RUs and 996-tone RUs forming an MRU based on a signal field. In this policy, when a continuous 240 MHz bandwidth for transmitting a PPDU includes an MRU containing 484-tone RUs and 996-tone RUs, the STA receiving the PPDU skips a resource unit allocation instruction subfield corresponding to a second 80 MHz subblock in the 240 MHz bandwidth when obtaining the frequency positions of the 484-tone RUs and 996-tone RUs forming the MRU based on a resource unit allocation subfield in the signal field. The STA determines the frequency locations of the 484-tone RUs and 996-tone RUs forming the MRU in the 160MHz subblock to which the MRU belongs, based on the number of RUs of the 484-tone RUs and 996-tone RUs forming the MRU in the 160MHz subblock to which the MRU belongs, as indicated by the resource unit allocation instruction subfields corresponding to the first 80MHz subblock and / or the third 80MHz subblock in the 240MHz bandwidth. Depending on whether the resource unit allocation subfield indicating the MRU is the resource unit allocation subfield corresponding to the first 80MHz subblock or the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA determines whether the 160MHz subblock to which the MRU belongs is the lowest 160MHz frequency or the highest 160MHz frequency in the 240MHz bandwidth in order to determine the specific 484-tone RUs and specific 996-tone RUs forming the MRU.

[0227] Naturally, in other embodiments, other numbering strategies may be used. In this embodiment of the present application, the numbering strategy shown in Figure 8A is used as an illustrative example.

[0228] The following describes in detail the technical solutions provided in embodiments of this application with reference to the PPDU transmission method provided in embodiments of this application.

[0229] In this embodiment of the present application, an embodiment in which an AP transmits a PPDU to an STA is used for illustrative purposes. The method of the present application is also applicable to scenarios in which an AP transmits a PPDU to an AP and scenarios in which an STA transmits a PPDU to an STA.

[0230] In this embodiment, the 996+484-tone RU is an MRU that includes a low-frequency 996-tone RU and a high-frequency 484-tone RU. In the embodiment of the PPDU transmission method of this application, the 484+996-tone RU is an MRU that includes a low-frequency 484-tone RU and a high-frequency 996-tone RU.

[0231] Figure 8B is a schematic flowchart of the PPDU transmission method. The PPDU transmission method includes the following steps:

[0232] 801. The AP generates the PPDU.

[0233] The bandwidth for transmitting the PPDU includes a continuous 240 MHz. The 240 MHz bandwidth includes MRUs, which include 996-tone RUs and 484-tone RUs, where the MRUs are either 996+484-tone RUs or 484+996-tone RUs. For simplicity of explanation, each MRU in this embodiment may be understood as either 996+484-tone RUs or 484+996-tone RUs. Optionally, the bandwidth for transmitting the PPDU is a continuous 240 MHz.

[0234] The PPDU includes a plurality of resource unit allocation subfields corresponding to a 240 MHz bandwidth, and includes at least one resource unit allocation subfield corresponding to the MRU. The resource unit allocation subfield corresponding to the MRU indicates the number of RUs of 484 - tone RU and 996 - tone RU that form the MRU within the 160 MHz sub - block to which the MRU belongs.

[0235] The resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80 MHz sub - block and / or the third 80 MHz sub - block within the 240 MHz bandwidth is for determining or indicating the frequency positions of the 484 - tone RU and 996 - tone RU that form the MRU in the 240 MHz bandwidth.

[0236] Optionally, the PPDU includes a signal field, and the signal field includes a common field and a user - specific field. The common field includes a plurality of resource unit allocation subfields corresponding to a 240 MHz bandwidth. The user - specific field includes a user field.

[0237] Optionally, the resource unit allocation subfield corresponding to the MRU further indicates the user field corresponding to the MRU, or the resource unit allocation subfield corresponding to the MRU further indicates the number of user fields that contribute to the user - specific field in the same EHT - SIG content channel as the resource unit allocation subfield.

[0238] The structure of the PPDU can be the structure shown in FIG. 5C, but is not limited thereto. The signal field can be, for example, the EHT - SIG in the PPDU shown in FIG. 5C, but is not limited thereto.

[0239] The 802.11ax AP transmits the PPDU.

[0240] In response, STA receives the PPDU.

[0241] 803. The STA identifies, based on the resource unit allocation subfield, that the 240MHz bandwidth includes MRUs containing 484-tone RUs and 996-tone RUs.

[0242] Specifically, the STA may determine that the 240 MHz bandwidth includes MRUs, including 484-tone RUs and 996-tone RUs, based on multiple resource unit allocation subfields corresponding to the 240 MHz bandwidth in the signal field.

[0243] The approach of this embodiment of the present application is applicable to a scenario in which the lowest 160 MHz frequency in a 240 MHz bandwidth is located in one MRU containing a 996-tone RU and a 484-tone RU, and is applicable to a scenario in which the highest 160 MHz frequency in a 240 MHz bandwidth is located in one MRU containing a 996-tone RU and a 484-tone RU, and is applicable to a scenario in which the 240 MHz bandwidth is located in two MRUs, each containing a 996-tone RU and a 484-tone RU. In a scenario in which the 240 MHz bandwidth is located in two MRUs, each containing a 996-tone RU and a 484-tone RU, the 484-tone RU and 996-tone RU forming one of the MRUs are located in the lowest 160 MHz frequency in the 240 MHz bandwidth, and the 484-tone RU and 996-tone RU forming the other MRU are located in the highest 160 MHz frequency in the 240 MHz bandwidth.

[0244] For simplicity of explanation, in this embodiment of the present application, MRUs containing 484-tone RUs and 996-tone RUs in the lowest 160 MHz frequency within a 240 MHz bandwidth are referred to as low-frequency MRUs, and MRUs containing 484-tone RUs and 996-tone RUs in the highest 160 MHz frequency within a 240 MHz bandwidth are referred to as high-frequency MRUs.

[0245] In one possible implementation, the 240MHz bandwidth includes low-frequency MRUs. Based on the resource unit allocation subfield corresponding to the first 80MHz subblock and / or the resource unit allocation subfield corresponding to the second 80MHz subblock, the STA may determine that the 240MHz bandwidth includes MRUs containing 484-tone RUs and 996-tone RUs.

[0246] In another possible implementation, the 240MHz bandwidth includes high-frequency MRUs. Based on the resource unit allocation subfield corresponding to the second 80MHz subblock and / or the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA may determine that the 240MHz bandwidth includes MRUs containing 484-tone RUs and 996-tone RUs.

[0247] In yet another possible implementation, the 240MHz bandwidth includes low-frequency and high-frequency MRUs. Based on resource unit allocation subfields corresponding to any one or more 80MHz subblocks within the 240MHz bandwidth, the STA may determine that the 240MHz bandwidth includes MRUs containing 484-tone RUs and 996-tone RUs.

[0248] 804. STA obtains the number of RUs for the 484-tone RUs and 996-tone RUs that form the MRU in the 160MHz subblock to which the MRU belongs, based on the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80MHz subblock and / or third 80MHz subblock in the 240MHz bandwidth.

[0249] It should be understood that the resource unit allocation subfield corresponding to the MRU within the resource unit allocation subfield corresponding to the first 80MHz subblock indicates that the 160MHz subblock to which the MRU belongs is the lowest 160MHz frequency within the 240MHz bandwidth, and the resource unit allocation subfield corresponding to the MRU within the resource unit allocation subfield corresponding to the third 80MHz subblock indicates that the 160MHz subblock to which the MRU belongs is the highest 160MHz frequency within the 240MHz bandwidth.

[0250] In this application, the STA obtains the number of RUs of the 484-tone RUs and 996-tone RUs forming the MRU in the 160MHz subblock to which the MRU belongs, in order to determine the frequency positions of the 484-tone RUs and 996-tone RUs forming the MRU in the 160MHz subblock to which the MRU belongs, based on the resource unit allocation subfield corresponding to a first 80MHz subblock and / or the resource unit allocation subfield corresponding to a third 80MHz subblock. Furthermore, depending on whether the resource unit allocation subfield corresponding to the MRU is the resource unit allocation subfield corresponding to a first 80MHz subblock or the resource unit allocation subfield corresponding to a third 80MHz subblock, the STA can determine the position of the 160MHz subblock to which the MRU belongs in the 240MHz bandwidth in order to obtain the frequency position of the MRU in the 240MHz bandwidth, based on the frequency positions of the 484-tone RUs and 996-tone RUs forming the MRU in the 160MHz subblock to which the MRU belongs.

[0251] Thus, when determining the frequency positions of 996-tone RUs and 484-tone RUs that form a 484+996-tone RU or 996+484-tone RU in the 240MHz bandwidth, the STA skips the resource unit allocation subfield corresponding to the second 80MHz subblock. Based on the resource unit allocation subfield corresponding to the first 80MHz subblock and / or the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA can accurately determine which 484-tone RUs and which 996-tone RUs form a 484+996-tone RU or 996+484-tone RU in the 240MHz bandwidth. The AP can allocate a 484+996-tone RU and / or 996+484-tone RU, including 996-tone RUs and 484-tone RUs, to one or more stations.

[0252] It should be understood that when determining the frequency position of a different RU from the MRU within a 240MHz bandwidth, the STA does not necessarily skip the resource unit allocation subfield of the second 80MHz subblock. The STA may determine the frequency position of a different RU from the MRU within a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second 80MHz subblock.

[0253] For a strategy in which the STA determines the frequency positions of the 484-tone RU and 996-tone RU that form the MRU in a 240 MHz bandwidth, several possible embodiments are listed in this application. It should be understood that the strategy in which the STA determines the frequency positions of the 484-tone RU and 996-tone RU that form the MRU in a 240 MHz bandwidth is not limited to the following embodiments.

[0254] In some embodiments, the 240MHz bandwidth includes two MRUs, each MRU containing a 484-tone RU and a 996-tone RU, where the 996-tone RU corresponding to the first 80MHz subblock and one 484-tone RU in the second 80MHz subblock are combined into the MRU, and the 996-tone RU corresponding to the third 80MHz subblock and the other 484-tone RU in the second 80MHz subblock are combined into the MRU.

[0255] When determining the 484-tone RUs and 996-tone RUs that form each MRU in the 240MHz bandwidth based on the resource unit allocation subfield, the STA skips the resource unit allocation subfield corresponding to the second 80MHz subblock and determines the 484-tone RUs and 996-tone RUs that form each MRU based on the resource unit allocation subfields corresponding to the first 80MHz subblock and the second 80MHz subblock.

[0256] Specifically, the two MRUs include a low-frequency MRU and a high-frequency MRU. The MRU indicated by the resource unit allocation subfield corresponding to the first 80MHz subblock is the low-frequency MRU, and the MRU indicated by the resource unit allocation subfield corresponding to the second 80MHz subblock is the high-frequency MRU.

[0257] Based on the resource unit allocation subfield corresponding to the first 80MHz subblock, the STA can determine the frequency positions of the 484-tone RU and 996-tone RU that form the low-frequency MRU in the 160MHz subblock to which the low-frequency MRU belongs, and can determine that the 160MHz subblock to which the low-frequency MRU belongs is the lowest 160MHz subblock in the 240MHz bandwidth. Thus, based on the resource unit allocation subfield corresponding to the first 80MHz subblock, the STA can determine the frequency positions of the 484-tone RU and 996-tone RU that form the low-frequency MRU in the lowest 160MHz frequency in the 240MHz bandwidth, and therefore can determine the frequency positions of the 484-tone RU and 996-tone RU that form the low-frequency MRU in the 240MHz bandwidth.

[0258] Based on the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA can determine the frequency positions of the 484-tone RU and 996-tone RU that form the high-frequency MRU in the 160MHz subblock to which the high-frequency MRU belongs, and can determine that the 160MHz subblock to which the high-frequency MRU belongs is the highest 160MHz frequency within the 240MHz bandwidth. Thus, based on the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA can determine the frequency positions of the 484-tone RU and 996-tone RU that form the high-frequency MRU at the highest 160MHz frequency within the 240MHz bandwidth, and therefore can determine the frequency positions of the 484-tone RU and 996-tone RU that form the high-frequency MRU in the 240MHz bandwidth.

[0259] In the technical solution of this embodiment, when the 240 MHz bandwidth includes two MRUs and each MRU includes a 484-tone RU and a 996-tone RU, it can be seen that the STA can accurately determine the frequency positions of the 484-tone RUs and 996-tone RUs that form each MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80 MHz sub-block and the resource unit allocation subfield corresponding to the third 80 MHz sub-block.

[0260] For example, FIG. 8C is a schematic scenario diagram of an MRU synthesis case included in 240 MHz. In the four resource unit allocation subfields corresponding to the first 80 MHz sub-block, the resource unit allocation subfield corresponding to the MRU indicates that the number of RUs of the 484-tone RUs forming the MRU in the 160 MHz sub-block to which the MRU belongs is 3, and the number of RUs of the 996-tone RUs forming the MRU in the 160 MHz sub-block to which the MRU belongs is 1. In the resource unit allocation subfield corresponding to the third 80 MHz sub-block, the resource unit allocation subfield corresponding to the MRU indicates that the number of RUs of the 484-tone RUs forming the MRU in the 160 MHz sub-block to which the MRU belongs is 2, and the number of RUs of the 996-tone RUs forming the MRU in the 160 MHz sub-block to which the MRU belongs is 2.

[0261] The MRU indicated by the resource unit allocation subfield corresponding to the first 80 MHz sub-block is a low-frequency MRU, and the 160 MHz sub-block to which the MRU belongs is the lowest 160 MHz frequency in the 240 MHz bandwidth. The MRU indicated by the resource unit allocation subfield corresponding to the third 80 MHz sub-block is a high-frequency MRU, and the 160 MHz sub-block to which the MRU belongs is the highest 160 MHz frequency in the 240 MHz bandwidth.

[0262] Thus, based on the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80MHz subblock, the STA can determine the locations of the 484-tone RU and 996-tone RU forming the MRU in the 240MHz bandwidth, by determining that the 996-tone RU forming the MRU is the first 996-tone RU at the lowest 160MHz frequency in the 240MHz bandwidth, and the 484-tone RU forming the MRU is the third 484-tone RU at the lowest 160MHz frequency in the 240MHz bandwidth. Based on the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the third 80MHz subblock, the STA can determine the positions of the 484-tone RU and 996-tone RU forming the MRU in the 240MHz bandwidth by determining that the 996-tone RU forming the MRU is the second 996-tone RU at the highest 160MHz frequency in the 240MHz bandwidth, and the 484-tone RU forming the MRU is the second 484-tone RU at the highest 160MHz frequency in the 240MHz bandwidth.

[0263] In some other embodiments, the 240MHz bandwidth includes an MRU containing 484-tone RUs and 996-tone RUs, and the STA can also determine the location of the 160MHz subblock to which the MRU belongs based on the resource unit allocation subfield corresponding to a first 80MHz subblock or the resource unit allocation subfield corresponding to a third 80MHz subblock, and determine the 484-tone RUs and 996-tone RUs that form the MRU in the 160MHz subblock to which the MRU belongs, based on the resource unit allocation subfield corresponding to the MRU.

[0264] For specific implementation logic for how the STA determines the positions of the 484-tone RU and 996-tone RU forming an MRU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80MHz subblock or the resource unit allocation subfield corresponding to the third 80MHz subblock, see the aforementioned policy in which the STA determines the 484-tone RU and 996-tone RU forming one of the MRUs in an embodiment in which the 240MHz bandwidth includes two MRUs, each MRU including a 484-tone RU and a 996-tone RU. Further details are not described here again.

[0265] Optionally, in a first indicating strategy for indicating the frequency position of a single RU in an MRU provided in embodiments of this application, the resource unit allocation subfield in the signal field of the PPDU indicating a 484+242-tone RU or a 242+484-tone RU may indicate the number of RUs of the 484-tone RU and 242-tone RU that form the 484+242-tone RU or 242+484-tone RU within the 80 MHz subblock to which the 484+242-tone RU belongs. In the PPDU signal field, a resource unit allocation subfield indicating 2*996+484-tone RU or 484+2*996-tone RU may indicate the number of RUs of 2*996-tone RUs and 484-tone RUs that form the 2*996+484-tone RU or 484+2*996-tone RU within the 240MHz bandwidth where the 484+242-tone RU is located.

[0266] In this embodiment of the present application, when determining the number of user fields corresponding to MRUs including 484-tone RUs and 996-tone RUs, it should be understood that the STA may or may not use the resource unit allocation subfields corresponding to the MRUs in one or more resource unit allocation subfields corresponding to the second 80MHz subblock as a basis for determining the number of user fields corresponding to the MRUs. In other words, the resource unit allocation subfields corresponding to the MRUs in the resource unit allocation subfields corresponding to the second 80MHz subblock may or may not be used to determine the number of user fields corresponding to the MRUs. When the resource unit allocation subfields corresponding to the MRUs in the resource unit allocation subfields corresponding to the second 80MHz subblock are used to determine the number of user fields corresponding to the MRUs, the indicated number of user fields corresponding to the MRUs may be 0. Alternatively, the number of user fields may not be indicated.

[0267] The following describes a strategy for STA to determine the 996-tone RUs and 484-tone RUs that form the MRUs, and to determine the number of user fields corresponding to the MRUs, using a specific example.

[0268] Specifically, resource unit allocation subfields may be indicated by the index in Table 10. A resource unit allocation subfield indicating an MRU indicates the specific MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs corresponding to the MRU in a certain segment of the frequency domain, and the number of user fields that contribute to user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield. For RU numbering rules, see the relevant explanation corresponding to Figure 8A. [Table 10A] [Table 10B] [Table 10C] [Table 10D]

[0269] Each index in Table 10 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs forming the MRU within a contiguous frequency segment to which the MRU belongs, and the number of user fields contributing to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields contributing to the user-specific fields within the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields corresponding to the resource unit allocation subfield within the EHT-SIG content channel where the resource unit allocation subfield is located. The user fields corresponding to the resource unit allocation subfield are the user fields of the user to whom the resource unit indicated by the resource unit allocation subfield is allocated.

[0270] Optionally, any index in Table 10 indicating a number of user fields between 1 and 8 may include both the RU allocation instruction portion and the user field instruction portion. The RU allocation instruction portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, and the number of RUs forming the MRU in a contiguous frequency segment to which the MRU belongs. The user field instruction portion indicates the number of user fields that contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield.

[0271] Specifically, any index structure in Table 10 indicating that the number of user fields is between 1 and 8 may be knkn-1...k2k1y2y1y0, where knkn-1...k2k1 is the RU allocation instruction part, n is the number of bits in the RU allocation instruction part, and y2y1y0 is the user field instruction part, which is 3 bits and separately indicates 1 to 8 user fields.

[0272] For the number of user fields indicated by each index in Table 10, please refer to the section of Table 10 corresponding to each index. The following provides a detailed explanation of the meaning of the MRU synthesis examples indicated by the indexes in Table 10.

[0273] The values ​​in parentheses in Table 10 can be understood as the number of RUs corresponding to the RUs indicated by the value before the parentheses.

[0274] Indices 1 to 9 in Table 10 indicate that a 242-tone RU corresponding to a resource unit allocation subfield belongs to a 242+484-tone RU, that the number of RUs in the 242-tone RU forming the 242+484-tone RU is 1, and that the number of RUs in the 484-tone RU forming the 242+484-tone RU is 2. Based on indices 1 to 9 in Table 10, STA can determine that a 242+484-tone RU can be obtained by combining a first 242-tone RU in the 80MHz subblock and a second 484-tone RU in the 80MHz subblock.

[0275] Indices 10 to 18 in Table 10 indicate that a 242-tone RU corresponding to a resource unit allocation subfield belongs to a 242+484-tone RU, that the number of RUs in the 242-tone RU that make up the 242+484-tone RU within the 242+484-tone RU is 2, and that the number of RUs in the 484-tone RU that make up the 242+484-tone RU within the 242+484-tone RU is 2. Based on indices 10 to 18 in Table 10, STA can determine that a 242+484-tone RU can be obtained by combining a second 242-tone RU in the 80MHz subblock to which the 242+484-tone RU belongs and a second 484-tone RU in the 80MHz subblock.

[0276] Indices 19 to 27 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+242-tone RU, that the number of RUs in the 484-tone RU that make up the 484+242-tone RU within the 484+242-tone RU is 1, and that the number of RUs in the 242-tone RU that make up the 484+242-tone RU within the 484+242-tone RU is 4. Based on indices 19 to 27 in Table 10, STA can determine that the 484+242-tone RU is obtained by combining the first 484-tone RU and the fourth 242-tone RU in the 80MHz subblock to which the 484+242-tone RU belongs.

[0277] Indices 28 to 36 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+242-tone RU, that the number of RUs in the 484-tone RU that make up the 484+242-tone RU within the 484+242-tone RU is 1, and that the number of RUs in the 242-tone RU that make up the 484+242-tone RU within the 484+242-tone RU is 3. Based on indices 28 to 36 in Table 10, STA can determine that the 484+242-tone RU is obtained by combining the first 484-tone RU and the third 242-tone RU in the 80MHz subblock to which the 484+242-tone RU belongs.

[0278] Indices 37 to 45 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU that make up the 484+996-tone RU is 1, and that the number of RUs in the 996-tone RU that make up the 484+996-tone RU is 2. Based on indices 37 to 45 in Table 10, STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs and the second 996-tone RU in the 160MHz subblock.

[0279] Indices 46 to 54 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU that make up the 484+996-tone RU is 2, and that the number of RUs in the 996-tone RU that make up the 484+996-tone RU is 2. Based on indices 46 to 54 in Table 10, STA can determine that the 484+996-tone RU can be obtained by combining the second 484-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs and the second 996-tone RU in the 160MHz subblock.

[0280] Indices 55 to 63 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU that make up the 996+484-tone RU is 1, and that the number of RUs in the 484-tone RU that make up the 996+484-tone RU is 4. Based on indices 55 to 63 in Table 10, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs and the fourth 484-tone RU in the 160MHz subblock.

[0281] Indices 64 to 72 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU that make up the 996+484-tone RU is 1, and that the number of RUs in the 484-tone RU that make up the 996+484-tone RU is 3. Based on indices 64 to 72 in Table 10, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU and the third 484-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs.

[0282] When the resource unit allocation subfield indicating a 484+242-tone RU or 242+484-tone RU is shown by the index in Table 10, the RU identifiers of the 484-tone RU and 242-tone RU forming the 484+242-tone RU or 242+484-tone RU can be accurately indicated within the 80MHz subblock to which the 484+242-tone RU or 242+484-tone RU belongs. Thus, it can be seen that the absolute position of the 484-tone RU and 242-tone RU forming the 484+242-tone RU or 242+484-tone RU within the 80MHz subblock to which the 484+242-tone RU or 242+484-tone RU belongs can be indicated. When the resource unit allocation subfield indicating a 996+484-tone RU or 484+996-tone RU is indicated by the index in Table 10, the RU identifiers of the 996-tone RU and 484-tone RU forming the 996+484-tone RU or 484+996-tone RU can be accurately indicated within the 160MHz subblock to which the 996+484-tone RU or 484+996-tone RU belongs, thus indicating the absolute position of the 996-tone RU and 484-tone RU forming the 996+484-tone RU or 484+996-tone RU within the 160MHz subblock to which the 996+484-tone RU or 484+996-tone RU belongs.

[0283] In some embodiments, the resource unit allocation subfield in the PPDU signal field corresponding to the 240 MHz bandwidth includes resource unit allocation subfields corresponding to a first 80 MHz subblock, a second 80 MHz subblock, and a third 80 MHz subblock within the 240 MHz bandwidth.

[0284] In such embodiments, the STA receiving the PPDU determines, based on the resource unit allocation subfield corresponding to a first 80 MHz subblock and / or the resource unit allocation subfield corresponding to a third 80 MHz subblock in the 240 MHz bandwidth, that the 240 MHz bandwidth includes an MRU formed by combining a 996-tone RU and a 484-tone RU, and the frequency positions of the 996-tone RU and the 484-tone RU that form the MRU in the 240 MHz bandwidth.

[0285] There are at least two possible implementations in which STA determines the number of user fields corresponding to MRU.

[0286] In one possible implementation, the STA may determine the number of user fields corresponding to the MRU based on the resource unit allocation subfields of the first 80MHz subblock, the second 80MHz subblock, and the third 80MHz subblock within the 240MHz bandwidth. In such an implementation, it may be understood that the resource unit allocation subfield corresponding to the second 80MHz subblock within the 240MHz bandwidth is involved in indicating the number of user fields corresponding to the MRU.

[0287] For example, Figure 9A is a schematic diagram of a resource unit allocation scenario. When the bandwidth for transmitting PPDU is 240 MHz, in ascending order of frequency, the 996-tone RU corresponding to the first 80 MHz subblock within the 240 MHz bandwidth and the 484-tone RU corresponding to the first 40 MHz subblock of the second 80 MHz subblock form a 996+484-tone RU. The 996+484-tone RU is allocated to four users.

[0288] The 484-tone RU corresponding to the second 40MHz subblock of the second 80MHz subblock within the 240MHz bandwidth, and the 996-tone RU corresponding to the third 80MHz subblock, form another 996+484-tone RU. The 484+996 RU is allocated to three users.

[0289] The first 80MHz subblock may be understood as the first to fourth 20MHz subblocks, the second 80MHz subblock may be understood as the fifth to eighth 20MHz subblocks, and the third 80MHz subblock may be understood as the ninth to twelfth 20MHz subblocks.

[0290] Figure 9B is a schematic diagram of the signal field structure. The signal field is a schematic scenario diagram of resource unit allocation in a 240 MHz bandwidth. The PPDU signal field includes resource unit allocation subfields 1 to 6 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth, and resource unit allocation subfields 7 to 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth.

[0291] The PPDU is transmitted over two content channels. These two content channels may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted over content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted over content channel 2.

[0292] Resource unit allocation subfield 1 may be indicated by index 66 in Table 10 to show that the first 242-tone RU in the 240MHz bandwidth belongs to the 996+484-tone RU, which includes the 996-tone RU and the 484-tone RU; that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160MHz subblock; and that two user fields contribute to the same user-specific fields of the EHT-SIG content channel (content channel 1) as the resource unit allocation subfield.

[0293] Resource Unit Allocation Subfield 2 may be indicated by index 66 in Table 10 to show that the second 242-tone RU in the 240MHz bandwidth corresponds to the 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160MHz subblock, and that two user fields contribute to the same user-specific fields of the EHT-SIG content channel (content channel 2) as the Resource Unit Allocation Subfield.

[0294] Resource unit allocation subfields 3 to 6 may be indicated by index 64 in Table 10 to show that the corresponding 242-tone RUs belong to the 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock and the third 484-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs, and that the zero user fields contribute to the user-specific fields of the EHT-SIG content channel, which are the same as the resource unit allocation subfields.

[0295] The resource unit allocation subfield 7 may be indicated by index 48 in Table 10 to show that the third 242-tone RU of the second 80MHz subblock in the 240MHz bandwidth belongs to the 996+484-tone RU, that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs, and that two user fields contribute to the same user-specific fields of the EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0296] The resource unit allocation subfield 8 may be indicated by index 47 in Table 10 to show that the fourth 242-tone RU of the second 80MHz subblock in the 240MHz bandwidth belongs to the 996+484-tone RU, that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs, and that one user field contributes to the user-specific field of the same EHT-SIG signal content channel (content channel 2) as the resource unit allocation subfield.

[0297] Resource unit allocation subfields 9 to 12 may be indicated by index 46 in Table 10 to show that the fourth 242-tone RU of the third 80MHz subblock in the 240MHz bandwidth belongs to the 996+484-tone RU, that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs, and that zero user fields contribute to the user-specific fields of the same EHT-SIG signal content channel as the resource unit allocation subfields.

[0298] In Figure 9B, the arrows indicated by resource unit allocation subfields 5 and 6 are dashed, which indicates that resource unit allocation subfields 5 and 6 are within the 240MHz bandwidth and that the fifth and sixth 242-tone RUs corresponding to resource unit allocation subfields 5 and 6 belong to the same MRU as the fourth 242-tone RU in the first 80MHz subblock on the left side of the 240MHz bandwidth, but still do not accurately indicate that they belong to the same MRU as the fourth 242-tone RU in the third 80MHz subblock on the right side of the 240MHz bandwidth. The arrows indicated by resource unit allocation subfields 7 and 8 are dashed arrows, which indicates that resource unit allocation subfields 7 and 8 cannot precisely indicate that the 7th and 8th 242-tone RUs corresponding to resource unit allocation subfields 7 and 8 belong to the same MRU as the four 242-tone RUs in the first 80MHz subblock on the left side of the 240MHz bandwidth, but still belong to the same MRU as the four 242-tone RUs in the third 80MHz subblock on the right side of the 240MHz bandwidth.

[0299] Specifically, based on resource unit allocation subfields 1 to 4 corresponding to the first 80MHz subblock in the 240MHz bandwidth, the STA determines that four 242-tone RUs in the first 80MHz subblock in the 240MHz bandwidth belong to the 996+484-tone RU, and that the 996+484-tone RU includes the first 996-tone RU and the third 484-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs. The 160MHz subblock to which the 996+484-tone RU belongs is the lowest 160MHz frequency in the 240MHz bandwidth. In this case, the STA may determine that the 996+484-tone RU includes the 996-tone RU corresponding to the first 80MHz subblock in the 240MHz bandwidth and the 484-tone RU corresponding to the lowest 40MHz frequency in the second 80MHz subblock.

[0300] Based on the sum of the number of user fields indicated by resource unit allocation subfields 1 through 6, STA determines that the number of user fields corresponding to 996 + 484 - tone RU is 4.

[0301] The STA further determines, based on resource unit allocation subfields 9 to 12 corresponding to the third 80MHz subblock in the 240MHz bandwidth, that the four 242-tone RUs in the third 80MHz subblock in the 240MHz bandwidth belong to the 484+996-tone RU, and that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs. The 160MHz subblock to which the 484+996-tone RU belongs is the high-frequency 160MHz subblock in the 240MHz bandwidth. In this case, the STA may determine that the 484+996-tone RU includes the 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock in the 240MHz bandwidth and the 996-tone RU corresponding to the third 80MHz subblock.

[0302] Based on the sum of the number of user fields indicated by resource unit allocation subfields 7 through 12, STA determines that the number of user fields corresponding to 484 + 996 - tone RU is 3.

[0303] In another possible implementation, the STA may determine the number of user fields corresponding to the MRU formed by synthesizing 996-tone RUs and 484-tone RUs, based on resource unit allocation subfields corresponding to a first 80MHz subblock and a third 80MHz subblock within the 240MHz bandwidth. In such an implementation, the resource unit allocation subfield corresponding to the second 80MHz subblock within the 240MHz bandwidth would be relevant to indicating the number of user fields.

[0304] For example, Figure 9C is a schematic diagram of the signal field structure. Based on the resource unit allocation example in Figure 9A, the PPDU signal field includes resource unit allocation subfields 1 through 4 corresponding to the four 242-tone RUs of the first 80MHz subblock in the 240MHz bandwidth, resource unit allocation subfields 5 through 8 corresponding to the four 242-tone RUs of the second 80MHz subblock in the 240MHz bandwidth, and resource unit allocation subfields 9 through 12 corresponding to the four 242-tone RUs of the third 80MHz subblock in the 240MHz bandwidth.

[0305] The PPDU is transmitted over two content channels. These two content channels may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted over content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted over content channel 2.

[0306] For the methods of indicating resource unit allocation subfields 1 to 6 and resource unit allocation subfields 9 to 12, please refer to the methods of indicating resource unit allocation subfields 1 to 6 and resource unit allocation subfields 9 to 12 in the example corresponding to Figure 9B.

[0307] Resource unit allocation subfields 7 and 8 may be indicated by index 46 in Table 10 to show that the 7th and 8th 242-tone RUs in the 240 MHz bandwidth belong to the 484+996-tone RU, that the 484+996-tone RU includes the 2nd 484-tone RU and the 2nd 996-tone RU in the 160 MHz subblock to which the 484+996-tone RU belongs, and that zero user fields contribute to the user-specific fields of the same EHT-SIG signal content channel as the resource unit allocation subfields.

[0308] The arrows indicated by resource unit allocation subfields 5 through 8 are dashed arrows. For the meaning of the dashed arrows, please refer to the relevant explanation above in Figure 9B. Further details will not be explained here.

[0309] Thus, when determining the 996-tone RUs and 484-tone RUs that form the MRUs, the STA skips resource unit allocation subfields 5 to 8 corresponding to the second 80MHz subblock in the 240MHz bandwidth and determines the frequency positions of the 996-tone RUs and 484-tone RUs that form the MRUs in the 240MHz bandwidth, as well as the number of user fields corresponding to each MRU, based on the resource unit allocation subfields (resource unit allocation subfields 1 to 4 and 9 to 12) corresponding to the first and third 80MHz subblocks in the 240MHz bandwidth.

[0310] Specifically, based on resource unit allocation subfields 1 to 4 corresponding to the first 80MHz subblock in the 240MHz bandwidth, the STA determines that the four 242-tone RUs of the first 80MHz subblock in the 240MHz bandwidth belong to the 996+484-tone RU, that the 996+484-tone RU includes the 996-tone RU corresponding to the first 80MHz subblock in the 240MHz bandwidth and the 484-tone RU corresponding to the lowest 40MHz frequency of the second 80MHz subblock, and that the number of user fields corresponding to the 996+484-tone RU is 4.

[0311] STA further determines, based on resource unit allocation subfields 9 to 12 corresponding to the third 80MHz subblock in the 240MHz bandwidth, that the four 242-tone RUs of the third 80MHz subblock in the 240MHz bandwidth belong to the 484+996-tone RU, that the 484+996-tone RU includes the 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock in the 240MHz bandwidth and the 996-tone RU corresponding to the third 80MHz subblock, and that the number of user fields corresponding to the 484+996-tone RU is 3.

[0312] For the methods by which the STA determines the 996-tone RU and 484-tone RU that form a 996+484-tone RU, and for the methods by which the STA determines the 996-tone RU and 484-tone RU that form a 484+996-tone RU, please refer to the relevant explanation in the aforementioned example in Figure 9B. Further details will not be explained here.

[0313] In some possible embodiments, the resource unit allocation subfield in the PPDU signal field corresponding to the 240 MHz bandwidth includes resource unit allocation subfields corresponding to a first 80 MHz subblock and a third 80 MHz subblock within the 240 MHz bandwidth, but does not include the resource unit allocation subfield corresponding to a second 80 MHz subblock within the 240 MHz bandwidth.

[0314] In such an embodiment, the STA receiving the PPDU determines, based on the resource unit allocation subfields of the first 80MHz subblock and the third 80MHz subblock within the 240MHz bandwidth, that the 240MHz bandwidth contains two MRUs, the frequency positions of the 996-tone RU and 484-tone RU forming each MRU in the 240MHz bandwidth, and the number of user fields corresponding to each MRU.

[0315] For example, Figure 9A is a schematic diagram of a resource unit allocation scenario. When the bandwidth for transmitting PPDU is 240 MHz, the first to sixth 242-tone RUs belong to one 996+484-tone RU, which is allocated to four users, in ascending order of frequency. The seventh to twelfth 20 MHz subblocks correspond to one 484+996-tone RU, which is allocated to three users. The first to fourth 20 MHz subblocks may be understood as the first 80 MHz subblock, the fifth to eighth 20 MHz subblocks as the second 80 MHz subblock, and the ninth to twelfth 20 MHz subblocks as the third 80 MHz subblock.

[0316] Figure 9D is a schematic diagram of the signal field structure. The PPDU signal field includes resource unit allocation subfields 1 through 4 corresponding to the first 80 MHz subblock within the 240 MHz bandwidth, and resource unit allocation subfields 9 through 12 corresponding to the third 80 MHz subblock within the 240 MHz bandwidth.

[0317] The PPDU is transmitted over two content channels. These two content channels may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 9, and 11 may be transmitted over content channel 1, and resource unit allocation subfields 2, 4, 10, and 12 may be transmitted over content channel 2.

[0318] Resource unit allocation subfields 1 to 4 and 9 to 12 may be indicated by indices 46 to 54 in Table 10. For specific methods of indicating resource unit allocation subfields 1 to 4 and 9 to 12, see the relevant explanation in the example corresponding to Figure 9C. Further details are not provided here.

[0319] Thus, the STA may determine, based on any one of the resource unit allocation subfields 1 to 4, that a 996-tone RU corresponding to the first 80MHz subblock at the lowest 160MHz frequency in the 240MHz bandwidth belongs to one 996+484-tone RU, and that the first 996-tone RU and the third 484-tone RU at the lowest 160MHz frequency in the 240MHz bandwidth form a 996+484-tone RU. The STA may further determine, based on the sum of the number of user fields indicated by resource unit allocation subfield 1 and the number of user fields indicated by resource unit allocation subfield 3, that the number of user fields transmitted in content channel 1 and corresponding to a 996+484-tone RU is 2. The STA may further determine, based on the sum of the number of user fields indicated by source unit allocation subfield 2 and the number of user fields indicated by resource unit allocation subfield 4, that the number of user fields transmitted in content channel 2 and corresponding to a 996+484-tone RU is 2. In other words, the number of user fields corresponding to 996 + 484 - tone RU is 4.

[0320] Similarly, the STA may determine, based on the resource unit allocation subfields 9 to 12, that a 996-tone RU corresponding to a third 80MHz subblock in the 240MHz bandwidth belongs to one 484+996-tone RU, which is formed by combining a second 484-tone RU at the lowest 160MHz frequency in the 240MHz bandwidth and a second 996-tone RU at the lowest 160MHz frequency in the 240MHz bandwidth. The STA may further determine, based on the resource unit allocation subfields 9 to 12, that the number of user fields corresponding to the 484+996-tone RU is 3.

[0321] Optionally, the signal field may include a resource unit allocation subfield indicator field, indicating that the signal field does not include a resource unit allocation subfield corresponding to a second 80 MHz subblock within the 240 MHz bandwidth.

[0322] Before performing step 804, the station first determines, based on the resource unit allocation subfield instruction field, that the signal field does not contain a resource unit allocation subfield corresponding to a second 80 MHz subblock within the 240 MHz bandwidth.

[0323] Thus, based on the resource unit allocation subfield instruction field, the STA can determine that the resource unit allocation subfield corresponding to the 240MHz bandwidth includes a resource unit allocation subfield corresponding to a first 80MHz subblock within the 240MHz bandwidth and a resource unit allocation subfield corresponding to a third 80MHz subblock within the 240MHz bandwidth, and that the resource unit allocation subfield not corresponding to the 240MHz bandwidth includes a resource unit allocation subfield corresponding to a second 80MHz subblock within the 240MHz bandwidth. Based on the resource unit allocation subfield corresponding to the first 80MHz subblock within the 240MHz bandwidth and / or the resource unit allocation subfield corresponding to the third 80MHz subblock within the 240MHz bandwidth, the STA determines the frequency positions of the 996-tone RU and 484-tone RU forming the MRU in the 240MHz bandwidth and determines the user field corresponding to the MRU.

[0324] In such a strategy, step 803 may be omitted.

[0325] The resource unit allocation subfield instruction field can be a bitmap. Each bit in the bitmap indicates whether each 242-tone RU in the channel bandwidth for transmitting the PPDU corresponds to a resource unit allocation subfield in the common field. The bitmap indicates that the signal field does not contain resource unit allocation subfields corresponding to the four 242-tone RUs in the second 80MHz subblock within the 240MHz bandwidth.

[0326] For example, based on the example shown in Figure 9A, the bitmap could be 12 bits. Each bit corresponds to one 242-tone RU. Each bit indicates whether the signal field contains a resource unit allocation subfield corresponding to the 242-tone RU corresponding to the bit. If "1" indicates that one granularity of frequency domain resource corresponds to a resource unit allocation subfield, and "0" indicates that one granularity of frequency domain resource does not correspond to a resource unit allocation subfield, then the bitmap could specifically be 111100001111. Of course, in another embodiment, alternatively, "0" may indicate that one granularity of frequency domain resource corresponds to a resource unit allocation subfield, and "1" may indicate that one granularity of frequency domain resource does not correspond to a resource unit allocation subfield.

[0327] In a second indicating strategy for indicating the frequency position of a single RU in an MRU provided in this embodiment of the present application, the 484-tone RU and 996-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs are numbered by using the strategy shown in Figure 8A. In this strategy, the resource unit allocation subfield of the second 80 MHz subblock in the 240 MHz bandwidth indicates the number of RUs of the 484-tone RU and 996-tone RU forming the 996+484-tone RU in the 160 MHz subblock, indicating the frequency position of the 160 MHz subblock in the 240 MHz bandwidth.

[0328] Based on the aforementioned second indicating strategy for indicating the frequency position of a single RU in an MRU, one embodiment of the present application further provides another strategy for determining the frequency positions of 484-tone RUs and 996-tone RUs forming an MRU based on a signal field. In this strategy, when a contiguous 240 MHz in the bandwidth for transmitting a PPDU contains an MRU including 484-tone RUs and 996-tone RUs, the STA receiving the PPDU obtains the frequency positions of the 484-tone RUs and 996-tone RUs forming the MRU based on a resource unit allocation subfield corresponding to a second 80 MHz subblock in the 240 MHz bandwidth in the signal field.

[0329] The above measures will be described in more detail below with reference to a PPDU transmission method provided in another embodiment of this application.

[0330] In this embodiment, the 996+484-tone RU is an MRU that includes a low-frequency 996-tone RU and a high-frequency 484-tone RU. In the embodiment of the PPDU transmission method of this application, the 484+996-tone RU is an MRU that includes a low-frequency 484-tone RU and a high-frequency 996-tone RU.

[0331] As shown in the schematic flowchart of Figure 10, a PPDU transmission method provided in another embodiment of this application may include the following steps:

[0332] 1001. The AP generates the PPDU.

[0333] The bandwidth for transmitting the PPDU is 240 MHz, and the 240 MHz bandwidth includes MRUs containing 996-tone RUs and 484-tone RUs, where the MRUs are either 996+484-tone RUs or 484+996-tone RUs. For simplicity of explanation, each MRU in this embodiment may be understood as either 996+484-tone RUs or 484+996-tone RUs.

[0334] The PPDU includes multiple resource unit allocation subfields corresponding to a 240 MHz bandwidth. The multiple resource unit allocation subfields corresponding to a second 80 MHz subblock within the 240 MHz bandwidth include at least one resource unit allocation subfield corresponding to an MRU (996+484-tone RU or 484+996-tone RU) to indicate the MRU and the frequency positions of the 996-tone RU and 484-tone RU that form the MRU in the 240 MHz bandwidth.

[0335] For example, in one or more resource unit allocation subfields corresponding to a second 80 MHz subblock within a 240 MHz bandwidth, the resource unit allocation subfield corresponding to the MRU indicates a 996+484-tone RU, the RU identifiers of the 996-tone RU and 484-tone RU that form the 996+484-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs, and whether the 160 MHz subblock is the low-frequency 160 MHz or high-frequency 160 MHz within the 240 MHz bandwidth. The low-frequency 160 MHz may be understood as the 160 MHz on the left side of the 240 MHz bandwidth, and the high-frequency 160 MHz may be understood as the 160 MHz on the right side of the 240 MHz bandwidth. Thus, the resource unit allocation subfield corresponding to the MRU can indirectly indicate the frequency positions of the 996-tone RU and 484-tone RU that form the MRU in the 240 MHz bandwidth.

[0336] It can be understood that a 240MHz bandwidth may include one MRU containing 996-tone RUs and 484-tone RUs.

[0337] The 240MHz bandwidth may, as an alternative, include two MRUs. Each MRU contains a 996-tone RU and a 484-tone RU. In this case, the 484-tone RU corresponding to the lowest 40MHz frequency of the second 80MHz subblock within the 240MHz bandwidth and the 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock within the 240MHz bandwidth belong to different MRUs. One 484-tone RU belongs to the 996+484-tone RU, and the other 484-tone RU belongs to the 484+996-tone RU.

[0338] Optionally, the PPDU includes signal fields, and the signal fields include common fields and user-specific fields. The common fields include multiple resource unit allocation subfields corresponding to a 240MHz bandwidth. The user-specific fields include user fields.

[0339] Optionally, the resource unit allocation subfield corresponding to the MRU may further indicate the user field corresponding to the MRU, or the resource unit allocation subfield corresponding to the MRU may further indicate the number of user fields that contribute to the user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield.

[0340] 1002. The AP sends a PPDU.

[0341] In response, STA receives the PPDU.

[0342] 1003. The STA determines the frequency positions of the 996-tone RU and 484-tone RU that form the MRU in the 240MHz bandwidth, based on the resource unit allocation subfield corresponding to the second 80MHz subblock in the 240MHz bandwidth.

[0343] Thus, when the 240MHz bandwidth for transmitting the PPDU includes an MRU containing a 996-tone RU and a 484-tone RU, among the multiple resource unit allocation subfields corresponding to a second 80MHz subblock in the 240MHz bandwidth, there is at least one resource unit allocation subfield corresponding to the MRU to indicate the frequency position of the 996-tone RU and the 484-tone RU that form the MRU in the 240MHz bandwidth. Thus, the STA receiving the PPDU can determine the frequency position in the 240MHz bandwidth of the 996-tone RU and the 484-tone RU that form each MRU included in the 240MHz bandwidth, based on the multiple resource unit allocation subfields corresponding to the second 80MHz subblock, in order to determine a specific 484-tone RU and a specific 996-tone RU that form the MRU in the 240MHz bandwidth. An AP can assign one or more stations to a 484+996-tone RU and / or 996+484-tone RU, which include 996-tone RUs and 484-tone RUs within a 240 MHz bandwidth.

[0344] In this embodiment, the signal field may include a resource unit allocation subfield corresponding to a first 80 MHz subblock in a 240 MHz bandwidth and a resource unit allocation subfield corresponding to a third 80 MHz subblock in a 240 MHz bandwidth, or it may not include a resource unit allocation subfield corresponding to a first 80 MHz subblock in a 240 MHz bandwidth and / or a resource unit allocation subfield corresponding to a third 80 MHz subblock in a 240 MHz bandwidth.

[0345] In an optional embodiment, the signal field includes a resource unit allocation subfield corresponding to at least one of a first 80MHz subblock and a third 80MHz subblock, and the STA may first determine, based on the resource unit allocation subfield in the signal field, that the 240MHz bandwidth includes an MRU containing 996-tone RUs and 484-tone RUs, and then perform step 1003.

[0346] In another optional embodiment, the signal field does not include resource unit allocation subfields corresponding to a first 80 MHz subblock in the 240 MHz bandwidth and resource unit allocation subfields corresponding to a third 80 MHz subblock in the 240 MHz bandwidth, and the STA does not need to determine that the 240 MHz bandwidth includes MRUs containing 996-tone RUs and 484-tone RUs. The STA can directly determine the frequency positions in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form each 996+484-tone RU included in the 240 MHz bandwidth, based on the resource unit allocation subfields corresponding to a second 80 MHz subblock in the 240 MHz bandwidth.

[0347] Specifically, when a continuous 240 MHz bandwidth for transmitting a PPDU includes an MRU containing a 996-tone RU and a 484-tone RU, in one or more resource unit allocation subfields corresponding to a second 80 MHz subblock within the 240 MHz bandwidth, the resource unit allocation subfields corresponding to the MRUs may be indicated by the index in Table 11. The resource unit allocation subfields corresponding to the first and third 80 MHz subblocks within the 240 MHz bandwidth may be indicated by the index in Table 11, or by other indexes, for example, by the index in Table 9 or Table 10. The scheme of the indicative resource unit allocation subfields corresponding to the first and third 80 MHz subblocks within the 240 MHz bandwidth is not limited in this embodiment. [Table 11A] [Table 11B] [Table 11C] [Table 11D]

[0348] Each index in Table 11 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs forming the MRU in a segment of consecutive frequencies to which the MRU belongs, and the frequency position of that segment of consecutive frequencies in the 240MHz bandwidth, and the number of user fields that contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields that contribute to the user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields corresponding to the resource unit allocation subfield in the EHT-SIG content channel where the resource unit allocation subfield is located. The user fields corresponding to the resource unit allocation subfield are the user fields of the user to whom the resource unit indicated by the resource unit allocation subfield is allocated.

[0349] Optionally, any index indicating that the number of user fields is 1 through 8 in Table 11 may include both the RU allocation instruction portion and the user field instruction portion. The RU allocation instruction portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs forming the MRU in a segment of consecutive frequencies to which the MRU belongs, and the frequency position of that segment of consecutive frequencies in the 240MHz bandwidth. The user field instruction portion indicates the number of user fields that contribute to user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield.

[0350] Specifically, any index structure in Table 11 indicating that the number of user fields is between 1 and 8 may be knkn-1...k2k1y2y1y0, where knkn-1...k2k1 is the RU allocation instruction part, n is the number of bits in the RU allocation instruction part, and y2y1y0 is the user field instruction part, which is 3 bits and separately indicates 1 to 8 user fields.

[0351] For the number of user fields indicated by each index in Table 11, please refer to the section of Table 11 corresponding to each index. Below, we will specifically explain the meaning of RUs indicated by the indexes in Table 11.

[0352] In Table 11, indices 1 through 9 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU forming the 484+996-tone RU is 1, that the number of RUs in the 996-tone RU forming the 484+996-tone RU is 2, and that the 160MHz subblock is the low frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the left. Based on indices 1 through 9 in Table 11, STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the low frequency 160MHz within the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0353] In Table 11, indices 10 to 18 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU that make up the 484+996-tone RU is 2, that the number of RUs in the 996-tone RU that make up the 484+996-tone RU is 2, and that the 160MHz subblock is the low frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the left. Based on indices 10 to 18 in Table 11, STA can determine that the 484+996-tone RU is obtained by combining the second 484-tone RU in the low frequency 160MHz subblock within the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0354] In Table 11, indices 19 to 27 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU forming the 996+484-tone RU is 1, that the number of RUs in the 484-tone RU forming the 996+484-tone RU is 4, and that the 160MHz subblock is the low frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the left. Based on indices 19 to 27 in Table 11, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the low frequency 160MHz subblock and the fourth 484-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0355] In Table 11, indices 28 to 36 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU forming the 996+484-tone RU is 1, that the number of RUs in the 484-tone RU forming the 996+484-tone RU is 3, and that the 160MHz subblock is the low frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the left. Based on indices 28 to 36 in Table 11, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the low frequency 160MHz subblock and the third 484-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0356] In Table 11, indices 37 to 45 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU forming the 484+996-tone RU is 1, that the number of RUs in the 996-tone RU forming the 484+996-tone RU is 2, and that the 160MHz subblock is the high-frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the right. Based on indices 37 to 45 in Table 11, STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the high-frequency 160MHz subblock and the second 996-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0357] In Table 11, indices 46 to 54 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, that the number of RUs in the 484-tone RU forming the 484+996-tone RU is 2, that the number of RUs in the 996-tone RU forming the 484+996-tone RU is 2, and that the 160MHz subblock is the high-frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the right. Based on indices 46 to 54, STA can determine that the 484+996-tone RU is obtained by combining the second 484-tone RU in the high-frequency 160MHz subblock and the second 996-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0358] In Table 11, indices 55 to 63 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU forming the 996+484-tone RU is 1, that the number of RUs in the 484-tone RU forming the 996+484-tone RU is 4, and that the 160MHz subblock is the high-frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the right. Based on indices 55 to 63 in Table 11, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the high-frequency 160MHz subblock and the fourth 484-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0359] In Table 11, indices 64 to 72 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, that the number of RUs in the 996-tone RU forming the 996+484-tone RU is 1, that the number of RUs in the 484-tone RU forming the 996+484-tone RU is 3, and that the 160MHz subblock is the high-frequency 160MHz within the 240MHz bandwidth, i.e., the 160MHz on the right. Based on indices 64 to 72 in Table 11, STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the high-frequency 160MHz subblock and the third 484-tone RU in the 160MHz subblock within the 240MHz bandwidth.

[0360] Each index in Table 11 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs forming the MRU in a segment of consecutive frequencies to which the MRU belongs, and the frequency of that segment of consecutive frequencies within the bandwidth, and the number of user fields that contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield.

[0361] Optionally, any index in Table 11 indicating a number of user fields between 1 and 8 may include both the RU allocation instruction portion and the user field instruction portion. The RU allocation instruction portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the number of RUs forming the MRU in a segment of consecutive frequencies to which the MRU belongs, and the frequency of that segment of consecutive frequencies within that bandwidth. The user field instruction portion indicates the number of user fields contributing to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield.

[0362] The following provides a specific example in which the resource unit allocation subfield is indicated by the index in Table 11 within the PPDU signal field.

[0363] Based on the example of resource unit allocation shown in Figure 9A, when the technical measures in the embodiment corresponding to Figure 10 of this application are used, the signal fields of the PPDU may include resource unit allocation subfields 1 through 4 corresponding to a first 80 MHz subblock in a 240 MHz bandwidth, resource unit allocation subfields 5 through 8 corresponding to a second 80 MHz subblock in a 240 MHz bandwidth, and resource unit allocation subfields 9 through 12 corresponding to a third 80 MHz subblock in a 240 MHz bandwidth.

[0364] The PPDU is transmitted over two content channels. These two content channels may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted over content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted over content channel 2.

[0365] Resource unit allocation subfields 5 and 6 may be indicated by indices 28 to 36 in Table 11. Resource unit allocation subfields 7 and 8 may be indicated by indices 46 to 54 in Table 6.

[0366] Based on resource unit allocation subfields 5 and 6, the STA determines that the 5th and 6th 242-tone RUs in the 240MHz bandwidth belong to the 996+484-tone RU, and that the 996+484-tone RU includes the 1st 996-tone RU and the 3rd 484-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs. The STA may further determine, based on resource unit allocation subfields 5 and 6, that the 160MHz subblock to which the 996+484-tone RU belongs is the lowest 160MHz frequency in the 240MHz bandwidth. In this case, the STA includes the 996-tone RU corresponding to the first 80MHz subblock in the 240MHz bandwidth and the 484-tone RU corresponding to the lowest 40MHz frequency in the second 80MHz subblock.

[0367] Based on resource unit allocation subfields 7 and 8, the STA determines that the 7th and 8th 242-tone RUs in the 240MHz bandwidth belong to the 484+996-tone RU, and that the 484+996-tone RU includes the 2nd 484-tone RU and the 2nd 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs. The STA may further determine, based on resource unit allocation subfields 7 and 8, that the 160MHz subblock to which the 484+996-tone RU belongs is the high frequency 160MHz in the 240MHz bandwidth. In this case, the STA may determine that the 484+996-tone RU includes the 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock in the 240MHz bandwidth and the 996-tone RU corresponding to the third 80MHz subblock.

[0368] Resource unit allocation subfields 1 through 12 are all resource unit allocation subfields corresponding to MRUs. Resource unit allocation subfields 1 through 4 and 9 through 12 may be indicated by the index in Table 11, or by other indexes, for example, by the index in Table 9 or Table 10.

[0369] The resource unit allocation subfields 1 to 4 and 9 to 12 may indicate the number of user fields in the user-specific fields that correspond to MRUs, or they may not be for determining the number of user fields in the user-specific fields that correspond to MRUs.

[0370] When resource unit allocation subfields 1 to 4 indicate the number of user fields corresponding to MRUs within the user-specific fields, STA determines the number of user fields corresponding to 996+484-tone RUs, including 996-tone RUs corresponding to the first 80MHz subblock in the 240MHz bandwidth and 484-tone RUs corresponding to the lowest 40MHz frequency of the second 80MHz subblock, based on the sum of the number of user fields indicated by resource unit allocation subfields 1 to 6.

[0371] If the resource unit allocation subfields 1 to 4 do not indicate the number of user fields corresponding to MRUs within the user-specific fields, the STA determines the number of user fields corresponding to 996+484-tone RUs, including 996-tone RUs corresponding to the first 80MHz subblock in the 240MHz bandwidth and 484-tone RUs corresponding to the lowest 40MHz frequency of the second 80MHz subblock, based on the sum of the number of user fields indicated by resource unit allocation subfields 5 and 6.

[0372] When resource unit allocation subfields 9 to 12 indicate the number of user fields corresponding to MRUs within the user-specific fields, STA determines the number of user fields corresponding to 484+996-tone RUs, including a 484-tone RU corresponding to the highest 40Hz frequency of the second 80MHz subblock in the 240MHz bandwidth and a 996-tone RU corresponding to the third 80MHz subblock, based on the sum of the number of user fields indicated by resource unit allocation subfields 7 to 12.

[0373] If the resource unit allocation subfields 9 to 12 do not indicate the number of user fields corresponding to MRUs within the user-specific fields, the STA determines the number of user fields corresponding to 484+996-tone RUs, including a 484-tone RU corresponding to the highest 40MHz frequency of the second 80MHz subblock in the 240MHz bandwidth and a 996-tone RU corresponding to the third 80MHz subblock, based on the sum of the number of user fields indicated by resource unit allocation subfields 7 and 8.

[0374] Figure 11A is a schematic diagram of the signal field structure. Resource unit allocation subfields 1 to 4 and 9 to 12 may be indicated by the indices in Table 11. Resource unit allocation subfields 1 to 4 indicate the number of user fields corresponding to MRU within the user-specific fields.

[0375] Specifically, resource unit allocation subfield 1 may be indicated by index 30 in Table 11 to show that the first 242-tone RU belongs to the 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU and the third 484-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs, and that the 160MHz subblock is the left-hand 160MHz subblock within the 240MHz bandwidth, and that two user fields contribute to the same user-specific field of the EHT-SIG content channel (content channel 1) as the resource unit allocation subfield. The resource unit allocation subfield 2 may be indicated by index 30 in Table 11 to show that the second 242-tone RU in the 240MHz bandwidth corresponds to the 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160MHz subblock, and that the 160MHz subblock is the 160MHz subblock on the left side of the 240MHz bandwidth, and to show that two user fields contribute to the same user-specific field of the EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0376] Resource unit allocation subfields 3 through 6 may be indicated by index 28 in Table 11 to show that the corresponding 20MHz subblock belongs to the 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160MHz subblock, and that the 160MHz subblock is the leftmost 160MHz subblock in the 240MHz bandwidth, and that zero user fields contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfields.

[0377] The resource unit allocation subfield 7 may be indicated by index 48 in Table 11 to show that the seventh 242-tone RU in the 240MHz bandwidth belongs to the 484+996-tone RU, that the 484+996-tone RU is obtained by combining the second 484-tone RU and the second 964-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs, and that the 160MHz subblock is the leftmost 160MHz subblock in the 240MHz bandwidth, and to show that two user fields contribute to the same user-specific field of the EHT-SIG content channel (content channel 1) as the resource unit allocation subfield.

[0378] The resource unit allocation subfield 8 may be indicated by index 47 in Table 11 to show that the seventh 242-tone RU in the 240MHz bandwidth belongs to the 484+996-tone RU, that the 484+996-tone RU contains the second 484-tone RU and the second 996-tone RU in the 160MHz subblock to which the 484+996-tone RU belongs, and that the 160MHz subblock is the leftmost 160MHz subblock in the 240MHz bandwidth, and to show that one user field contributes to the user-specific field of the same EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0379] It can be seen that any one of the resource unit allocation subfields 1 to 12 can indicate the frequency positions of the 484-tone RU and 996-tone RU forming the MRU in the 240MHz bandwidth where the MRU formed by combining the 484-tone RU and 996-tone RU is located, by indicating that the corresponding 242-tone RU belongs to the MRU, and can also indicate the frequency positions of the 484-tone RU and 996-tone RU forming the 484+996-tone RU in the 160MHz subblock to which the MRU belongs, as well as the frequency positions of the 160MHz subblock within the 240MHz bandwidth. Thus, any one of the resource unit allocation subfields 1 to 12 can accurately indicate the specific 484-tone RU and specific 996-tone RU of a specific 80MHz subblock included in the MRU indicated by the resource unit allocation subfield.

[0380] Refer to the schematic diagram of the signal field structure shown in Figure 11B. If the signal field does not include resource unit allocation subfields corresponding to the first 80 MHz subblock and the third 80 MHz subblock in the 240 MHz bandwidth, resource unit allocation subfield 5 corresponding to the fifth 20 MHz subblock in the 240 MHz bandwidth may be indicated by index 30 in Table 11 to show that the first 996-tone RU and the third 484-tone RU at the lowest 160 MHz frequency in the 240 MHz bandwidth form a 996+484-tone RU, and that the 996+484-tone RU contributes two user fields to the user-specific field in the same EHT-SIG content channel as this resource unit allocation subfield. Resource unit allocation subfield 6, corresponding to the sixth 20MHz subblock within the 240MHz bandwidth, may be indicated by index 30 in Table 11 to show that the first 996-tone RU and the third 484-tone RU at the lowest 160MHz frequency within the 240MHz bandwidth form a 996+484-tone RU, and that the 996+484-tone RU contributes two user fields to the user-specific fields within the same EHT-SIG content channel as this resource unit allocation subfield.

[0381] The resource unit allocation subfield 7, corresponding to the seventh 20MHz subblock within the 240MHz bandwidth, may be indicated by index 48 in Table 11 to show that the second 484-tone RU and second 996-tone RU at the highest 160MHz frequency within the 240MHz bandwidth form a 484+996-tone RU, and that the 484+996-tone RU contributes two user fields to the user-specific fields within the same EHT-SIG content channel as this resource unit allocation subfield. Resource unit allocation subfield 8, corresponding to the eighth 20MHz subblock within the 240MHz bandwidth, may be indicated by index 47 in Table 11 to show that the second 484-tone RU and second 996-tone RU at the highest 160MHz frequency within the 240MHz bandwidth form a 484+996-tone RU, and that the 484+996-tone RU contributes one user field to the user-specific field within the same EHT-SIG content channel as this resource unit allocation subfield.

[0382] Based on the resource unit allocation subfields 5 and 6 corresponding to the second 80MHz subblock, the STA can determine that the first 996-tone RU and the third 484-tone RU at the lowest 160MHz frequency within the 240MHz bandwidth form a 996+484-tone RU. Based on the sum of the number of users indicated by resource unit allocation subfield 5 and the number of users indicated by resource unit allocation subfield 6, the STA determines that the number of user fields corresponding to the 996+484-tone RU is 4.

[0383] The STA can further determine, based on resource unit allocation subfields 7 and 8 corresponding to the second 80MHz subblock, that the second 484-tone RU and second 996-tone RU at the highest 160MHz frequency within the 240MHz bandwidth form a 484+996-tone RU. Based on the sum of the number of users indicated by resource unit allocation subfield 7 and the number of users indicated by resource unit allocation subfield 8, the STA determines that the number of user fields corresponding to the 484+996-tone RU is 3. This is the decision.

[0384] In some other embodiments of this application, when a 240 MHz bandwidth includes two MRUs, each MRU including a 996-tone RU and a 484-tone RU, a communication standard (e.g., 802.11be and later standards) may define the frequency positions of the 996-tone RU and 484-tone RU forming each MRU in the 240 MHz bandwidth. In other words, when a contiguous 240 MHz bandwidth includes two MRUs, each RU including a 996-tone RU and a 484-tone RU, the frequency positions of the 996-tone RU and 484-tone RU forming each MRU are fixed in the 240 MHz bandwidth. The MRU is a 996+484-tone RU or a 484+996-tone RU. In this embodiment, the 996+484-tone RU is an MRU that includes a lower frequency 996-tone RU and a higher frequency 484-tone RU. In the embodiment of the PPDU transmission method of this application, the 484+996-tone RU is an MRU that includes a low-frequency 484-tone RU and a high-frequency 996-tone RU.

[0385] For example, a 240MHz bandwidth may include, in ascending order of absolute frequency, 996-tone RUs, 484-tone RUs, 484-tone RUs, and 996-tone RUs. Low-frequency 996-tone RUs and 484-tone RUs are combined into a 996+484-tone RU, and high-frequency 484-tone RUs and 996-tone RUs are combined into a 484+996-tone RU.

[0386] In such embodiments, any resource unit allocation subfield corresponding to the MRU in the signal field may indicate the frequency position of the MRU in a 240 MHz bandwidth.

[0387] The strategy of this embodiment can be carried out by using the following steps.

[0388] 1201. The AP generates the PPDU.

[0389] The bandwidth required for transmitting PPDU is 240 MHz or greater, and the continuous 240 MHz bandwidth includes 996+484-tone RUs and 484+996-tone RUs.

[0390] The PPDU includes resource unit allocation subfields corresponding to 996+484-tone RUs and resource unit allocation subfields corresponding to 484+996-tone RUs.

[0391] The resource unit allocation subfield corresponding to the 996+484-tone RU indicates the frequency positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU in a 240MHz bandwidth. The resource unit allocation subfield corresponding to the 484+996-tone RU indicates the frequency positions of the 996-tone RU and 484-tone RU that form the 484+996-tone RU in a 240MHz bandwidth. User-specific fields include the user field corresponding to the 996+484-tone RU and the user field corresponding to the 484+996-tone RU. The resource unit allocation subfield may be a subfield within the signal field of the PPDU (e.g., EHT-SIG).

[0392] 1202. The AP sends a PPDU.

[0393] In response, the STA receives the PDU.

[0394] 1203. Based on the PPDU, the STA determines the resource unit allocation subfield corresponding to the 996+484-tone RU, the resource unit allocation subfield corresponding to the 484+996-tone RU, the frequency positions of the 996-tone RU and 484-tone RU forming the 996+484-tone RU in a 240MHz bandwidth, and the frequency positions of the 996-tone RU and 484-tone RU forming the 484+996-tone RU in a 240MHz bandwidth.

[0395] In this way, the STA can accurately determine the frequency positions of the 996-tone RU and 484-tone RU that form the MRU in a 240 MHz bandwidth, based on the resource unit allocation subfield within the signal field.

[0396] Specifically, the resource unit allocation subfield corresponding to the MRU may be indicated by the index shown in Table 12. [Table 12]

[0397] For the number of user fields indicated by each index in Table 12, please refer to the section of Table 12 corresponding to each index.

[0398] Indices 1 through 9 in Table 12 represent 996+484-tone RUs. The 996-tone RU corresponding to the first 80MHz subblock in the 240MHz bandwidth and the 484-tone RU corresponding to the first 40MHz subblock of the second 80MHz subblock form one of the 996+484-tone RUs, while the 484-tone RU corresponding to the second 40MHz subblock of the second 80MHz subblock in the 240MHz bandwidth and the 996-tone RU corresponding to the third 80MHz subblock in the 240MHz bandwidth form a 484+996-tone RU. In such a strategy, when a 240MHz bandwidth contains two MRUs, each RU containing a 996-tone RU and a 484-tone RU, the communication standard can define the frequency positions of the 996-tone RU and 484-tone RU forming each MRU in the 240MHz bandwidth. Thus, the frequency positions of the 996-tone RU and 484-tone RU forming each MRU are fixed and unique in the 240MHz bandwidth. In this way, the number of indices used to indicate the frequency positions of the 996-tone RU and 484-tone RU forming each MRU in the 240MHz bandwidth can be reduced, and the resource unit allocation subfield can display richer information by using the saved indices.

[0399] Optionally, indices 2 through 9 in Table 12, which represent 1 to 8 user fields, may include RU allocation instruction portions and user field instruction portions. The RU allocation instruction portion indicates the frequency positions in the 240MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU in a 240MHz bandwidth, and the frequency positions of the 996-tone RUs and 484-tone RUs that form a 484+996-tone RU in a 240MHz bandwidth. The user field quantity instruction portion indicates the number of user fields that contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield. The user field quantity instruction portion may be, for example, 3 bits.

[0400] Specifically, the structure of indices 2 to 9 may be knkn-1...k2k1y2y1y0, where knkn-1...k2k1 is the part indicating the MRU frequency position, n is the number of bits in the RU allocation instruction part, and y2y1y0 is the user field instruction part, which is 3 bits and separately indicates 1 to 8 user fields. In one optional embodiment, the structure of indices 2 to 9 may be the structure shown in Table 13. [Table 13A] [Table 13B] [Table 13C]

[0401] In some other embodiments of this application, as specified in communication standards (e.g., 802.11be and later standards), a 996-tone RU and a 484-tone RU in a single 160 MHz subblock can be combined into a 996+484-tone RU or a 484+996-tone RU in a 240 MHz bandwidth. In this embodiment, the 996+484-tone RU is an MRU containing a lower frequency 996-tone RU and a higher frequency 484-tone RU. In embodiments of the PPDU transmission method of this application, the 484+996-tone RU is an MRU containing a lower frequency 484-tone RU and a higher frequency 996-tone RU.

[0402] In one possible implementation, within a continuous 240MHz bandwidth, the 160MHz subblocks that are permitted to contain 996+484-tone RUs or 484+996-tone RUs are fixed. For example, as specified in the communication standard, within a continuous 240MHz bandwidth, 996-tone RUs and 484-tone RUs located only within the primary 160MHz subblock (the 160MHz subblock containing the primary 80MHz subblock and the secondary 80MHz subblock) within the 240MHz bandwidth can be combined into 996+484-tone RUs or 484+996-tone RUs.

[0403] In another possible implementation, a 160MHz subblock that is permitted to contain a 996+484-tone RU or a 484+996-tone RU within a consecutive 240MHz bandwidth may be understood as variable, dynamic, or quasi-static. For example, the AP may transmit instructional information to indicate that the 996-tone RUs and 484-tone RUs in the first and second 80MHz subblocks within the 240MHz bandwidth are permitted to be combined into a 996+484-tone RU or a 484+996-tone RU, or to indicate that the 996-tone RUs and 484-tone RUs in the second and third 80MHz subblocks are permitted to be combined into a 996+484-tone RU. Thus, the STA can determine the frequency positions of the 996-tone RU and 484-tone RU forming the 996+484-tone RU or 484+996-tone RU in the 240 MHz bandwidth, based on a 160 MHz subblock that may contain a 996+484-tone RU or a 484+996-tone RU. The STA may transmit instructional information to the STA in one of the following: a beacon frame, a probe response frame, or an association response frame.

[0404] This avoids the problem of having two 996+484-tone RUs within a continuous 240MHz bandwidth, and also avoids the problem of the STA not knowing the RU allocation status accurately due to unclear instructions in the resource unit allocation subfield, so that the STA receives data from the RUs allocated to it, and the STA reads the data correctly.

[0405] Optionally, the 240MHz bandwidth may be the entire bandwidth for transmitting the PPDU. Alternatively, the 240MHz bandwidth may be the 240MHz excluding the punctured 80MHz within a 320MHz bandwidth for transmitting the PPDU. In this case, the 320MHz bandwidth includes a primary 160MHz subblock and a secondary 160MHz subblock. If one 80MHz subblock of the primary 160MHz subblock is punctured, the secondary 160MHz subblock may contain a 996+484-tone RU or a 484+996-tone RU. If one 80MHz subblock of the secondary 160MHz subblock is punctured, the primary 160MHz subblock may contain a 996+484-tone RU or a 484+996-tone RU.

[0406] It should be understood that the measures for accurately indicating the 996-tone RU and 484-tone RU forming the MRU in this embodiment of the present application, and the measures for which the resource unit allocation subfield cannot accurately indicate that the 320 MHz bandwidth includes 2 * 996-tone RU and 996 + 484-tone RU, may be implemented separately or in combination.

[0407] The aforementioned embodiments of this application describe a method provided in the embodiments of this application from the perspective of an access point and a station. To implement the functions of the aforementioned method provided in the embodiments of this application, the access point and station may include a hardware structure and software modules to implement the aforementioned functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Some of the aforementioned functions may be performed in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module.

[0408] Refer to Figure 12. Figure 12 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1200 includes a processing unit 1201 and a transmission unit 1202. The transmission device 1200 is a PPDU transmitter. The transmission device 1200 may be a station or an access point. The processing unit 1201 may be understood as the processor of a communication device, and the transmission unit 1202 may be understood as the transmitter of a transceiver of a communication device.

[0409] The processing unit 1201 is configured to generate a PPDU, which includes multiple resource unit allocation subfields, each of which includes a resource unit allocation subfield corresponding to an MRU, and the resource unit allocation subfield corresponding to the MRU indicates that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80MHz subblocks in the bandwidth for transmitting the PPDU is for determining or indicating the type of MRU.

[0410] The transmitting unit 1202 is configured to transmit PPDU.

[0411] The bandwidth for transmitting the PPDU is 80 MHz or more. The bandwidth includes one or more 80 MHz subblocks. For example, when the bandwidth is 240 MHz, it includes three 80 MHz subblocks, and when the bandwidth is 320 MHz, it includes four 80 MHz subblocks. Thus, the resource unit allocation subfield instruction scheme is simplified, and the transmission device 1200 can determine the type of MRU based on the number of resource unit allocation subfields corresponding to the MRU in the resource unit allocation subfields corresponding to each of the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU, in order to determine the RUs that form the MRU. The bandwidth for transmitting the PPDU is 80 MHz or more. This allows for the synthesis of multiple RUs into one MRU and the allocation of MRUs to one or more users.

[0412] Refer to Figure 13. Figure 13 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1300 includes a processing unit 1301 and a transmitting unit 1302. The transmission device 1300 is a PPDU transmitter. The transmission device 1300 may be a station or an access point. The processing unit 1301 may be understood as the processor of a communication device, and the transmitting unit 1302 may be understood as the transmitter of a transceiver of a communication device.

[0413] The processing unit 1301 is configured to generate a PPDU, which includes multiple resource unit allocation subfields, each of which includes resource unit allocation subfields indicating two first MRUs, the 240MHz bandwidth to which the two first MRUs belong being consecutive 240MHz within the bandwidth for transmitting the PPDU, and the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU forming each of the first RUs being set according to the standard.

[0414] The transmitting unit 1302 is configured to transmit PPDU.

[0415] Thus, the communication standard defines the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU. The transmission device 1300 can accurately determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, such a measure does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate the 996+484-tone RU and 484+996-tone RU.

[0416] Refer to Figure 14. Figure 14 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1400 includes a processing unit 1401 and a transmission unit 1402. The transmission device 1400 is a PPDU transmitter. The transmission device 1400 may be a station or an access point. The processing unit 1401 may be understood as the processor of a communication device, and the transmission unit 1402 may be understood as the transmitter of a transceiver of a communication device.

[0417] The processing unit 1401 is configured to generate a PPDU, which includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU of the 996-tone RU and 484-tone RU forming the first RU and the 2*996-tone RU and 484-tone RU forming the second MRU are set according to the standard.

[0418] The transmitting unit 1402 is configured to transmit PPDU.

[0419] Thus, the standard specifies the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU that form the first RU, and the 2*996-tone RU and 484-tone RU that form the second MRU. The transmission device 1400 can accurately determine the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU that form the first RU and 2*996-tone RU, and the 2*996-tone RU and 484-tone RU that form the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a measure does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate 2*996+484-tone RU and 484+2*996-tone RU.

[0420] Refer to Figure 15. Figure 15 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1500 includes a processing unit 1501 and a transmitting unit 1502. The transmission device 1500 is a PPDU transmitter. The transmission device 1500 may be a station or an access point. The processing unit 1501 may be understood as the processor of a communication device, and the transmitting unit 1502 may be understood as the transmitter of a transceiver of a communication device.

[0421] The processing unit 1501 is configured to generate a PPDU, which includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, the first MRU consisting of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to the standard or a frequency position indicated by instruction information transmitted by the AP.

[0422] The transmitting unit 1502 is configured to transmit PPDU.

[0423] In other words, 996-tone RUs and 484-tone RUs can be synthesized into MRUs that are only within the permissible 160 MHz subblocks specified in the standard, or within the permissible 160 MHz subblocks indicated by the instruction information transmitted by the AP.

[0424] Thus, the transmission device 1500 can accurately determine which 160MHz subblocks contain the 996-tone RU and 484-tone RU of a 996+484-tone RU or a 484+996-tone RU, thereby allocating the MRU obtained by synthesizing the 996-tone RU and 484-tone RU to one or more users. In addition, such a strategy does not require different synthesis cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate the 996+484-tone RU and 484+996-tone RU.

[0425] Refer to Figure 16. Figure 16 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1600 includes a processing unit 1601 and a transmitting unit 1602. The transmission device 1600 is a PPDU transmitter. The transmission device 1600 may be a station or an access point. The processing unit 1601 may be understood as the processor of a communication device, and the transmitting unit 1602 may be understood as the transmitter of a transceiver of a communication device.

[0426] The processing unit 1601 is configured to generate a PPDU, the PPDU comprising a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU comprising a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU within the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the highest 80 MHz frequency within the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU within the 240 MHz bandwidth.

[0427] The transmitting unit 1602 is configured to transmit PPDU.

[0428] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0429] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or a 484+996-tone RU, the transmission device 1600 can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and accurately determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or a 484+006-tone RU based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0430] Refer to Figure 17. Figure 17 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1700 includes a processing unit 1701 and a transmitting unit 1702. The transmission device 1700 is a PPDU transmitter. The transmission device 1700 may be a station or an access point. The processing unit 1701 may be understood as the processor of a communication device, and the transmitting unit 1702 may be understood as the transmitter of a transceiver of a communication device.

[0431] The processing unit 1701 is configured to generate a PPDU, the PPDU comprising a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU comprising a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU within the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, as well as the position of the 160 MHz subblock within the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU within the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency within the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU within the 240 MHz bandwidth.

[0432] The transmitting unit 1702 is configured to transmit PPDU.

[0433] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or a 484+996-tone RU, the transmission device 1700 can accurately determine the frequency positions of the 996-tone RU and 484-tone RU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0434] Refer to Figure 18. Figure 18 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1800 includes a receiving unit 1801 and a processing unit 1802. The transmission device 1800 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 1801 may be understood as a receiver of the transceiver of a communication device, and the processing unit 1802 may be understood as a processor of a communication device.

[0435] The receiving unit 1801 is configured to receive a PPDU, which includes multiple resource unit allocation subfields, each of which includes a resource unit allocation subfield corresponding to an MRU, where the resource unit allocation subfield corresponding to the MRU indicates that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80MHz subblocks in the bandwidth for transmitting the PPDU is used to determine the type of MRU.

[0436] The processing unit 1802 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0437] The MRU indicated by the resource unit allocation subfield can be understood as the MRU included in the bandwidth for transmitting the PPDU. Specifically, the transmission device may determine what type of MRU is included in the bandwidth for transmitting the PPDU based on the number of resource unit allocation subfields corresponding to the MRU in each of the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU.

[0438] Thus, the resource unit allocation subfield instruction scheme is simplified, and the transmission device 1900 can determine, based on the resource unit allocation subfield, which types of MRUs are included in the bandwidth for transmitting the PPDU. This allows for the synthesis of multiple RUs into a single MRU and the allocation of MRUs to one or more users.

[0439] Refer to Figure 19. Figure 19 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 1900 includes a receiving unit 1901 and a processing unit 1902. The transmission device 1900 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 1901 may be understood as a receiver of the transceiver of a communication device, and the processing unit 1902 may be understood as a processor of a communication device.

[0440] The receiving unit 1901 is configured to receive a PPDU, which includes a plurality of resource unit allocation subfields, each of which includes resource unit allocation subfields indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong being a contiguous 240 MHz within the bandwidth for transmitting the PPDU, and the frequency positions in the 240 MHz bandwidth of the 996-tone RU and 484-tone RU forming each of the first RUs being set according to the standard.

[0441] The processing unit 1902 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0442] In such a strategy, the communication standard specifies the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, and the transmission equipment can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes two first MRUs, and can accurately determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users. In addition, in such a strategy, different combination cases do not need to be indicated by different indices in the resource unit allocation subfield, and the number of indices used for the resource unit allocation subfield to indicate 996+484-tone RU and 484+996-tone RU can be reduced.

[0443] Refer to Figure 20. Figure 20 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 2000 includes a receiving unit 2001 and a processing unit 2002. The transmission device 2000 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 2001 may be understood as a receiver of the transceiver of a communication device, and the processing unit 2002 may be understood as a processor of a communication device.

[0444] The receiving unit 2001 is configured to receive a PPDU, which includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU and a resource unit allocation subfield indicating a second MRU, and the frequency positions in the bandwidth for transmitting the PPDU of the 996-tone RU and 484-tone RU forming the first RU and the 2*996-tone RU and 484-tone RU forming the second MRU are set according to the standard.

[0445] The processing unit 2002 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0446] In such a configuration, the standard specifies the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU. The transmission device 2000 can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes the first and second MRUs, and can accurately determine the frequency positions in a 320 MHz bandwidth for the 996-tone RU and 484-tone RU forming the first RU, and the 2*996-tone RU and 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and 484-tone RU to one or more users. In addition, such a strategy does not require different synthesis cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate 2*996+484-tone RU and 484+2*996-tone RU.

[0447] Refer to Figure 21. Figure 21 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 2100 includes a receiving unit 2101 and a processing unit 2102. The transmission device 2100 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 2201 may be understood as a receiver of the transceiver of a communication device, and the processing unit 2202 may be understood as a processor of a communication device.

[0448] The receiving unit 2101 is configured to receive a PPDU, which includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, the first MRU consisting of a 996-tone RU and a 484-tone RU, and the frequency position of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency position set according to the standard or a frequency position indicated by instructional information transmitted by the AP.

[0449] The processing unit 2102 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0450] Thus, the transmission device 2100 can determine, based on the resource unit allocation subfield, that the bandwidth for transmitting the PPDU includes MRUs containing 996-tone RUs and 484-tone RUs, and can accurately determine which 160MHz subblocks contain 996-tone RUs and 484-tone RUs, thereby allocating the MRUs obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, such a strategy does not require different combination cases to be indicated by different indices in the resource unit allocation subfield, and can reduce the number of indices used for the resource unit allocation subfield to indicate 996-tone RUs and 484-tone RUs.

[0451] Refer to Figure 22. Figure 22 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 2200 includes a receiving unit 2201 and a processing unit 2202. The transmission device 2200 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 2201 may be understood as a receiver of the transceiver of the communication device, and the processing unit 2202 may be understood as a processor of the communication device.

[0452] The receiving unit 2201 is configured to receive a PPDU, the PPDU comprising a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU comprising a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU within the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU within the resource unit allocation subfield corresponding to the lowest 80 MHz frequency within the 240 MHz bandwidth and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency are for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU within the 240 MHz bandwidth.

[0453] The processing unit 2202 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0454] Specifically, the processing unit 2202 of the transmission device can determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU that form the first MRU, based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and the resource unit allocation subfield corresponding to the highest 80MHz frequency; that is, it can determine the frequency position of the RUs that form the first MRU in the 240MHz bandwidth.

[0455] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmission device 2200 can skip the resource unit allocation subfield corresponding to the second lowest 80MHz frequency in the 240MHz bandwidth and accurately determine the frequency positions of the 996-tone RU and 484-tone RU in the 240MHz bandwidth based on the resource unit allocation subfield corresponding to the lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0456] Refer to Figure 23. Figure 23 is a schematic diagram of the structure of a PPDU transmission device according to one embodiment of the present application. The transmission device 2300 includes a receiving unit 2301 and a processing unit 2302. The transmission device 2300 is a PPDU receiving device. The transmission device may be a station or an access point. The receiving unit 2301 may be understood as a receiver of the transceiver of a communication device, and the processing unit 2302 may be understood as a processor of a communication device.

[0457] The receiving unit 2301 is configured to receive a PPDU, the PPDU comprising a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising a resource unit allocation subfield indicating a first MRU, the bandwidth for transmitting the PPDU being a continuous 240 MHz, the first MRU comprising a 996-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicates the frequency positions of the 996-tone RU and the 484-tone RU in the 160 MHz subblock to which the first MRU belongs, as well as the position of the 160 MHz subblock in the 240 MHz bandwidth, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating the frequency positions of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth.

[0458] The processing unit 2302 is configured to analyze at least a portion of the resource unit allocation subfields among a plurality of resource unit allocation subfields in order to determine the RUs that form the MRU.

[0459] Specifically, the transmission device can determine the frequency positions in the 240MHz bandwidth of the 996-tone RU and 484-tone RU forming the first MRU based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and the resource unit allocation field corresponding to the highest 80MHz frequency, that is, it can determine the frequency position of the RU formed by the first MRU in the 240MHz bandwidth.

[0460] It should be understood that this strategy may be applied to scenarios where the 240 MHz bandwidth includes one first MRU, or to scenarios where the 240 MHz bandwidth includes two first MRUs.

[0461] In such a strategy, when determining the frequency positions of the 996-tone RU and 484-tone RU that form a 996+484-tone RU or 484+996-tone RU, the transmission device can accurately determine the frequency positions of the 996-tone RU and 484-tone RU in a 240MHz bandwidth based on the resource unit allocation subfield corresponding to the second lowest 80MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and 484-tone RU to one or more users.

[0462] For details regarding the embodiments of the transmission device described above, please refer to the relevant details of the embodiments of the method described above. Further details will not be explained here.

[0463] Logical blocks for various explanations enumerated in the embodiments of this application (illustrative Those skilled in the art will further understand that logical blocks and steps can be implemented by electronic hardware, computer software, or a combination thereof. Whether a function is implemented by hardware or software depends on the specific application and design requirements of the entire system. A person skilled in the art may use various methods to implement the functions described for each specific application, but the implementation should not be considered to exceed the scope of the embodiments of this application.

[0464] This application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer-readable storage medium is executed by a computer, one of the functions of the embodiments of the method described above is implemented.

[0465] This application further provides a computer program product including instructions. When the computer program product is executed by a computer, one of the functions of the embodiments of the method described above is implemented.

[0466] All or part of the embodiments described above may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement an embodiment, some or all of the embodiment may be implemented in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer instructions are loaded into a computer and executed there, the procedures or functions according to the embodiments of this application are generated, all or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or another programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from a website, computer, server, or data center to a computer, server, or data center on another website by a wired (e.g., coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (e.g., infrared, radio, or microwave) method. The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device such as a server or data center that integrates one or more available media. The usable media may include magnetic media (e.g., floppy disks, hard disks, or magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), and semiconductor media (e.g., solid-state drives (SSDs)).

[0467] Those skilled in the art will understand that the various reference numbers in this application, such as "first" and "second," are used solely for the purpose of simplifying the description and are not used to limit the scope of the embodiments of this application or to indicate order.

[0468] The mappings shown in the tables of this application may be configured or predefined. The values ​​of the information in the tables are merely examples, and other values ​​may be configured. This is not limited to this application. When mappings between information and each parameter are configured, not all mappings shown in the tables need to be configured. For example, in the tables of this application, the mappings shown in some rows may not need to be configured as alternatives. In another example, appropriate transformations and adjustments, such as partitioning and composing, may be performed based on the aforementioned tables. The names of the parameters shown in the titles of the aforementioned tables may be other names that can be understood by the communication device as alternatives, and the values ​​or representations of the parameters may be other values ​​or representations that can be understood by the communication device as alternatives. In the implementation of the aforementioned tables, other data structures such as arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, piles, or hash tables may be used as alternatives.

[0469] In this application, "to define in advance" may be understood as "to define," "to define in advance," "to store," "to store in advance," "to adjust in advance," "to configure in advance," "to solidify," or "to bake in advance."

[0470] In combination with the examples described in the embodiments disclosed herein, those skilled in the art will recognize that the units and algorithmic steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific application of the technical measures and design constraints. To implement the functions described for each specific application, those skilled in the art may use various methods, but the implementations should not be considered to exceed the scope of this application.

[0471] For the sake of convenience and simplicity, it will be readily apparent to those skilled in the art that the detailed operating processes of the described systems, devices, and units can be found by referring to the corresponding processes in the embodiments of the methods described above.

[0472] The foregoing description is merely a specific implementation of the present application and is not intended to limit the scope of protection of this application. Any modification or substitution that falls within the scope of the art disclosed in this application and is readily understood by those skilled in the art shall fall within the scope of protection of this application. Accordingly, the scope of protection of this application depends on the scope of protection of the claims. [Explanation of Symbols]

[0473] 200 Communication devices 201 Processor 202 memory 203 Command 204 Instructions 205 Transceiver 206 Antenna 301 Processor 302 Interface 303 memory 1200 Transmission equipment, communication equipment 1201 Processing Unit 1202 Transmitter Unit 1300 Transmission equipment, communication equipment 1301 Processing Unit 1302 Transmitter Unit 1400 Transmission equipment, communication equipment 1401 Processing Unit 1402 Transmitter Unit 1500 Transmission equipment, communication equipment 1501 Processing Unit 1502 Transmitter Unit 1600 Transmission equipment, communication equipment 1601 Processing Unit 1602 Transmitter Unit 1700 Transmission equipment, communication equipment 1701 Processing Unit 1702 Transmitter Unit 1800 Transmission equipment, communication equipment 1801 Receiving Unit 1802 Processing Unit 1900 Transmission equipment, communication equipment 1901 Receiving Unit 1902 Processing Unit 2000 Transmission equipment, communication equipment 2001 Receiving Unit 2002 Processing Unit 2100 Transmission equipment, communication equipment 2101 Receiving Unit 2102 Processing Unit 2200 Transmission equipment, communication equipment 2201 Receiving Unit 2202 Processing Unit 2300 Transmission equipment, communication equipment 2301 Receiving Unit 2302 Processing Unit

Claims

1. A transmission method in a wireless local area network, A step of generating a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signal field, The step of transmitting the PPDU, The signal field comprises a plurality of resource unit allocation subfields, Each of the aforementioned resource unit allocation subfields corresponds to 20 MHz in the frequency domain resources, One of the multiple resource unit allocation subfields includes an index, which indicates information about the multiple resource units (MRUs) where the 20MHz corresponding to the resource unit allocation subfield is located, and indicates the amount of user fields contributing to the user-specific field corresponding to the resource unit allocation subfield in the content channel where the resource unit allocation subfield is located. The aforementioned MRU is formed by two or more resource units (RUs) with a size of 242-tone or more. MRU formed by 484-tone RU and 242-tone RU, MRU formed by 484-tone RU and 996-tone RU, MRU formed by 484-tone RU and 2*996-tone RU, or MRU formed by 484-tone RU and 3*996-tone RU, It is one of the MRUs, or the MRU is further formed by three 996-tone RUs. The number of resource unit allocation subfields in the frequency domain resource for transmitting the PPDU that indicate the corresponding 20 MHz belongs to the MRU, among the resource unit allocation subfields corresponding to each 80 MHz subblock, is used to determine the MRU synthesis type. The information relating to the MRU includes the frequency positions of the RUs forming the MRU, and the 242-tone RUs, 484-tone RUs, or 996-tone RUs in the wireless local area network are numbered sequentially in ascending order of absolute frequency. The information relating to the MRU includes indicating the frequency position of a single 242-tone RU, 484-tone RU, or 996-tone RU forming the MRU by indicating the sequence number of the single 242-tone RU, 484-tone RU, or 996-tone RU. method.

2. The MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160MHz channel where the MRU is located. The method according to claim 1.

3. The MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80MHz channel where the MRU is located. The method according to claim 1.

4. The MRU is formed by two 996-tone RUs and 484-tone RUs in a 240MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RUs and the 996-tone RUs that form the MRU in the 240MHz channel where the MRU is located. The method according to claim 1.

5. A method for receiving data in a wireless local area network, A step of receiving a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signal field, The step of analyzing the PPDU is included, The signal field comprises a plurality of resource unit allocation subfields, Each of the aforementioned resource unit allocation subfields corresponds to 20 MHz in the frequency domain resources, One of the multiple resource unit allocation subfields includes an index, which indicates information about the multiple resource units (MRUs) where the 20MHz corresponding to the resource unit allocation subfield is located, and indicates the amount of user fields contributing to the user-specific field corresponding to the resource unit allocation subfield in the content channel where the resource unit allocation subfield is located. The aforementioned MRU is formed by two or more resource units (RUs) with a size of 242-tone or more. MRU formed by 484-tone RU and 242-tone RU, MRU formed by 484-tone RU and 996-tone RU, MRU formed by 484-tone RU and 2*996-tone RU, or MRU formed by 484-tone RU and 3*996-tone RU It is one of the MRUs, or the MRU is further formed by three 996-tone RUs. The MRU synthesis type is determined based on the number of resource unit allocation subfields that indicate the corresponding 20 MHz belongs to the MRU among the resource unit allocation subfields corresponding to each 80 MHz subblock in the frequency domain resource for transmitting the PPDU. The information relating to the MRU includes the frequency positions of the RUs forming the MRU, and the 242-tone RUs, 484-tone RUs, or 996-tone RUs in the wireless local area network are numbered sequentially in ascending order of absolute frequency. The information relating to the MRU includes indicating the frequency position of a single 242-tone RU, 484-tone RU, or 996-tone RU forming the MRU by indicating the sequence number of the single 242-tone RU, 484-tone RU, or 996-tone RU. method.

6. The MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160MHz channel where the MRU is located. The method according to claim 5.

7. The MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80MHz channel where the MRU is located. The method according to claim 5.

8. The MRU is formed by two 996-tone RUs and 484-tone RUs in a 240MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RUs and the 996-tone RUs that form the MRU in the 240MHz channel where the MRU is located. The method according to claim 5.

9. A communication device for transmitting Physical Layer Protocol Data Units (PPDUs) in a wireless local area network, A processing unit configured to generate the PPDU, wherein the PPDU includes a signal field, A transmitting unit configured to transmit the PPDU, The signal field comprises a plurality of resource unit allocation subfields, Each of the aforementioned resource unit allocation subfields corresponds to 20 MHz in the frequency domain resources, One of the multiple resource unit allocation subfields includes an index, which indicates information about the multiple resource units (MRUs) where the 20MHz corresponding to the resource unit allocation subfield is located, and indicates the amount of user fields contributing to the user-specific field corresponding to the resource unit allocation subfield in the content channel where the resource unit allocation subfield is located. The aforementioned MRU is formed by two or more resource units (RUs) with a size of 242-tone or more. MRU formed by 484-tone RU and 242-tone RU, MRU formed by 484-tone RU and 996-tone RU, MRU formed by 484-tone RU and 2*996-tone RU, or MRU formed by 484-tone RU and 3*996-tone RU It is one of the MRUs, or the MRU is further formed by three 996-tone RUs. The number of resource unit allocation subfields in the frequency domain resource for transmitting the PPDU that indicate the corresponding 20 MHz belongs to the MRU, among the resource unit allocation subfields corresponding to each 80 MHz subblock, is used to determine the MRU synthesis type. The information relating to the MRU includes the frequency positions of the RUs forming the MRU, and the 242-tone RUs, 484-tone RUs, or 996-tone RUs in the wireless local area network are numbered sequentially in ascending order of absolute frequency. The information relating to the MRU includes indicating the frequency position of a single 242-tone RU, 484-tone RU, or 996-tone RU forming the MRU by indicating the sequence number of the single 242-tone RU, 484-tone RU, or 996-tone RU. Communication device.

10. The MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160MHz channel where the MRU is located. The apparatus according to claim 9.

11. The MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80MHz channel where the MRU is located. The apparatus according to claim 9.

12. The MRU is formed by two 996-tone RUs and 484-tone RUs in a 240MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RUs and the 996-tone RUs that form the MRU in the 240MHz channel where the MRU is located. The apparatus according to claim 9.

13. A communication device for receiving Physical Layer Protocol Data Units (PPDUs) in a wireless local area network, A receiving unit configured to receive the PPDU, wherein the PPDU includes a signal field, The system comprises an analysis unit configured to analyze the PPDU, The signal field comprises a plurality of resource unit allocation subfields, Each of the aforementioned resource unit allocation subfields corresponds to 20 MHz in the frequency domain resources, One of the multiple resource unit allocation subfields includes an index, which indicates information about the multiple resource units (MRUs) where the 20MHz corresponding to the resource unit allocation subfield is located, and indicates the amount of user fields contributing to the user-specific field corresponding to the resource unit allocation subfield in the content channel where the resource unit allocation subfield is located. The aforementioned MRU is formed by two or more resource units (RUs) with a size of 242-tone or more. MRU formed by 484-tone RU and 242-tone RU, MRU formed by 484-tone RU and 996-tone RU, MRU formed by 484-tone RU and 2*996-tone RU, or MRU formed by 484-tone RU and 3*996-tone RU It is one of the MRUs, or the MRU is further formed by three 996-tone RUs. The MRU synthesis type is determined based on the number of resource unit allocation subfields that indicate the corresponding 20 MHz belongs to the MRU among the resource unit allocation subfields corresponding to each 80 MHz subblock in the frequency domain resource for transmitting the PPDU. The information relating to the MRU includes the frequency positions of the RUs forming the MRU, and the 242-tone RUs, 484-tone RUs, or 996-tone RUs in the wireless local area network are numbered sequentially in ascending order of absolute frequency. The information relating to the MRU includes indicating the frequency position of a single 242-tone RU, 484-tone RU, or 996-tone RU forming the MRU by indicating the sequence number of the single 242-tone RU, 484-tone RU, or 996-tone RU. Communication device.

14. The MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160MHz channel where the MRU is located. The apparatus according to claim 13.

15. The MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80MHz channel where the MRU is located. The apparatus according to claim 13.

16. The MRU is formed by two 996-tone RUs and 484-tone RUs in a 240MHz channel within the wireless local area network, and the resource unit allocation subfield specifically indicates the RU sequence numbers of the 484-tone RUs and the 996-tone RUs that form the MRU in the 240MHz channel where the MRU is located. The apparatus according to claim 13.

17. A communication device comprising a processor, a transceiver, and memory, A communication device wherein the processor executes computer program instructions in the memory, and the communication device performs the method according to any one of claims 1 to 8.

18. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions instruct a communication device to perform the method according to any one of claims 1 to 8.

19. A computer program comprising instructions, wherein when the instructions are executed on the computer, the computer is enabled to perform the method described in any one of claims 1 to 8.

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