PPDU transmitting method and related device

Abstract

To provide a physical layer protocol data unit (PPDU) transmitting method for indicating allocation of a plurality of resource units (RUs) to one or more users.SOLUTION: An AP (Access Point) generates and transmits a PPDU which includes RU allocation subfields corresponding to MRU (multiple RUs) to indicate that a 242-tone RU corresponding to the RU allocation subfields belongs to the MRU and in which the number of RU allocation subfields corresponding to the MRU among the RU allocation subfields corresponding to each 80 MHz sub-block in a bandwidth for transmitting the PPDU determines or indicates a type of the MRU. A STA (station) determines which type of the MRU is included in the bandwidth for transmitting the PPDU based on the number of RU allocation subfields corresponding to the MRU among the RU allocation subfields corresponding to each 80 MHz sub-block.SELECTED DRAWING: Figure 6A

Description

[Technical field]

[0001] This application claims priority to Chinese Patent Application No. 202010625292.3, entitled “PPDU TRANSMISSION METHOD AND RELATED APPARATUS,” filed with the State Intellectual Property Office of China on July 1, 2020, which is incorporated herein by reference in its entirety.

[0002] The present application relates to the field of mobile communication technologies, and in particular to a PPDU transmission method and related apparatus. [Background technology]

[0003] With the development of wireless local area network (WLAN), orthogonal frequency division multiple access (OFDMA) technology is newly introduced, which divides the entire bandwidth into multiple resource units (RUs). In other words, the frequency domain resources of a user are not allocated by channel, but by resource unit. For example, a 20MHz channel may include multiple RUs, which may be 26-tone RU, 52-tone RU, and 106-tone RU. A tone indicates the number of subcarriers. In addition, an RU may alternatively be 242-tone RU, 484-tone RU, 996-tone RU, etc.

[0004] 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, where the resource units are allocated to the RU to which the frequency domain resource corresponding to the resource unit allocation subfield belongs, and the number of users field corresponding to the 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 [Means for solving the problem]

[0005] The present application provides a PPDU transmission method for indicating allocation of multiple RUs to one or more users.

[0006] According to a first aspect, a PPDU transmission method is provided, comprising: generating a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield corresponding to an MRU, the resource unit allocation subfield corresponding to the MRU indicating that a 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and a number of resource unit allocation subfields corresponding to the MRU among the resource unit allocation subfields corresponding to each 80 MHz sub-block among a plurality of 80 MHz sub-blocks in a bandwidth for transmitting the PPDU is for determining or indicating a type of MRU; and transmitting the PPDU.

[0007] The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz. The bandwidth includes one or more 80 MHz sub-blocks. For example, when the bandwidth is 240 MHz, three 80 MHz sub-blocks are included, and when the bandwidth is 320 MHz, four 80 MHz sub-blocks are included. Thus, the resource unit allocation subfield indication scheme is simplified, and the PPDU receiving device can determine or indicate the type of MRU based on the number of resource unit allocation subfields corresponding to the MRU among the resource unit allocation subfields corresponding to each 80 MHz sub-block among the multiple 80 MHz sub-blocks in the bandwidth for transmitting the PPDU. The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz, and can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0008] According to a second aspect, the present application further provides a PPDU transmission method, which includes the steps of: generating a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a continuous 240 MHz in 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 are set according to a standard; and transmitting the PPDU, where one of the two first RUs is a 996+484-tone RU and the other first RU is a 484-tone+996-tone RU.

[0009] For example, as specified in a communication standard, 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, where the lower frequency 996-tone RUs and 484-tone RUs are combined into 996+484-tone RUs, and the higher frequency 484-tone RUs and 996-tone RUs are combined into 484+996-tone RUs.

[0010] Thus, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, and 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 forming each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combining cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0011] According to a third aspect, the present application further provides a PPDU transmission method, comprising: generating a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of 996-tone RUs and 484-tone RUs forming the first RU and 2*996-tone RUs and 484-tone RUs forming the second MRU are set according to a standard; and transmitting the PPDU.

[0012] For example, as specified in the communication standard, when a 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, i.e., in ascending order of frequency, the 2*996-tone RUs corresponding to the first and second 80 MHz sub-blocks in the 320 MHz bandwidth and the 484-tone RUs corresponding to the first 40 MHz sub-block of the third 80 MHz sub-block form a 2*996+484-tone RU, and the 484-tone RUs corresponding to the second 40 MHz sub-block of the third 80 MHz sub-block and the 996-tone RUs corresponding to the fourth 80 MHz sub-block form a 996+484-tone RU.

[0013] In another example, 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 996-tone RUs, 484-tone RUs, 484-tone RUs, and 2*996-tone RUs in ascending order of absolute frequency, i.e., the 996-tone RUs corresponding to the first 80 MHz sub-block in the 320 MHz bandwidth and the 484-tone RUs corresponding to the first 40 MHz sub-block of the second 80 MHz sub-block form a 996+484-tone RU, and the 484-tone RUs corresponding to the second 40 MHz sub-block of the second 80 MHz sub-block and the 2*996-tone RUs corresponding to the third 80 MHz sub-block and the fourth 80 MHz sub-block form a 996+484-tone RU.

[0014] Thus, the standard specifies the frequency positions in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU. The PPDU receiving device can accurately determine the frequency positions in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU, and thereby allocate the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combination cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 2*996+484-tone RU and the 484+2*996-tone RU can be reduced.

[0015] According to a fourth aspect, the present application further provides a PPDU transmission method, comprising: generating a PPDU, the PPDU including 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 a frequency location of a 160 MHz subblock to which the first MRU belongs in a bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP; and transmitting the PPDU.

[0016] That is, 996-tone RUs and 484-tone RUs can be combined into MRUs that are only within the allowed 160 MHz sub-blocks defined in the standard or indicated by the instruction information sent by the AP.

[0017] For example, when the bandwidth is 240 MHz, the 996-tone RU and the 484-tone RU may be allowed to be combined into an MRU only in the primary 160 MHz sub-block, or the AP sends indication information to indicate that the 996-tone RU and the 484-tone RU are allowed to be combined into an MRU only in the primary 160 MHz sub-block (160 MHz sub-block including the primary 80 MHz sub-block and the secondary 80 MHz sub-block).

[0018] In another example, the bandwidth is 320 MHz and 80 MHz is punctured. If one 80 MHz sub-block of the primary 160 MHz sub-block is punctured, the secondary 160 MHz sub-block may be allowed to include 996+484-tone RUs or 484+996-tone RUs. If one 80 MHz sub-block of the secondary 160 MHz sub-block is punctured, the primary 160 MHz sub-block may be allowed to include 996+484-tone RUs or 484+996-tone RUs.

[0019] In this way, the PPDU receiving device can accurately determine which 160 MHz sub-blocks contain 996-tone RUs and 484-tone RUs in a 996+484-tone RU or 484+996-tone RU, and thereby allocate the MRU obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, in such a manner, different combining cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RUs and 484+996-tone RUs can be reduced.

[0020] According to a fifth aspect, the present application further provides a PPDU transmission method, comprising: generating a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including consecutive 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 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 resource unit allocation subfield corresponding to the highest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and transmitting the PPDU.

[0021] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0022] In ascending order of frequency, the 240 MHz bandwidth includes a first 80 MHz sub-block, a second 80 MHz sub-block, and a third 80 MHz sub-block.

[0023] Optionally, the PPDU may further include a resource unit allocation subfield indication field to indicate that the PPDU does not include a resource unit allocation subfield corresponding to the second 80 MHz subblock. The resource unit allocation subfield indication field may be, for example, a bitmap. Each bit in the bitmap corresponds to one 20 MHz subblock in the 240 MHz bandwidth, and indicates whether the PPDU includes a resource unit allocation subfield corresponding to the 20 MHz subblock. For example, the bitmap may be 111100001111, indicating that the PPDU does not include a resource unit allocation subfield corresponding to the second 80 MHz subblock.

[0024] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the PPDU receiving device skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0025] According to a sixth aspect, an embodiment of the present application further provides a PPDU transmission method, comprising: generating a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including consecutive 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a location of the 160 MHz subblock in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to a second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and transmitting the PPDU.

[0026] In ascending order of frequency, the 240 MHz bandwidth includes a first 80 MHz sub-block, a second 80 MHz sub-block, and a third 80 MHz sub-block. The second lowest 80 MHz frequency is the second 80 MHz sub-block in the 240 MHz bandwidth.

[0027] The PPDU may include a resource unit allocation subfield corresponding to the first 80 MHz sub-block and a resource unit allocation subfield corresponding to the third 80 MHz sub-block, or may not include a resource unit allocation subfield corresponding to the first 80 MHz sub-block and / or a resource unit allocation subfield corresponding to the third 80 MHz sub-block.

[0028] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the PPDU receiving device can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0029] According to a seventh aspect, the present application further provides a PPDU transmission method, comprising: a step of receiving a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield corresponding to an MRU, the resource unit allocation subfield corresponding to the MRU indicating that a 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and a number of resource unit allocation subfields corresponding to the MRU among the resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU; and a step of analyzing at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine RUs that form the MRU.

[0030] It may 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 may 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 among the resource unit allocation subfields corresponding to each 80 MHz subblock among the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU.

[0031] In this way, the resource unit allocation subfield indication scheme 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, which can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0032] According to an eighth aspect, the present application further provides a PPDU transmission method, comprising: receiving a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a consecutive 240 MHz in the bandwidth for transmitting the PPDU, and frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each of the first RUs are set according to a standard; and analyzing at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRUs.

[0033] In such a scheme, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU. The PPDU receiving device can determine that the bandwidth for transmitting the PPDU includes two first MRUs based on the resource unit allocation subfield, and can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a scheme, different combination cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0034] According to a ninth aspect, the present application further provides a PPDU transmission method, comprising: a step of receiving a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of 996-tone RUs and 484-tone RUs forming the first RU and 2*996-tone RUs and 484-tone RUs forming the second MRU are set according to a standard; and a step of analyzing at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs forming the MRUs.

[0035] In such a scheme, the standard specifies the frequency locations in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU. The PPDU receiving device can determine that the bandwidth for transmitting the PPDU includes the first MRU and the second MRU based on the resource unit allocation subfield, and can accurately determine the frequency locations in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, with such an approach, different combining 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 2*996+484-tone RU and 484+2*996-tone RU can be reduced.

[0036] According to a tenth aspect, the present application further provides a PPDU transmission method, comprising: a step of receiving a PPDU, the PPDU including 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 a frequency location of a 160 MHz subblock to which the first MRU belongs in a bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP; and a step of analyzing at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine RUs that form the MRU.

[0037] In this way, the PPDU receiving device can determine based on the resource unit allocation subfield that the bandwidth for transmitting the PPDU includes an MRU including 996-tone RUs and 484-tone RUs, and can accurately determine which 160 MHz sub-blocks the 996-tone RUs and 484-tone RUs include, and thereby allocate the MRU obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, in such a solution, different combining cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RUs and 484+996-tone RUs can be reduced.

[0038] According to an eleventh aspect, the present application further provides a PPDU transmission method, comprising: receiving a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including continuous 240 MHz, the first MRU including 996-tone RU and 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating frequency positions of the 996-tone RU and 484-tone RU in a 160 MHz subblock to which the first MRU belongs, the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to a lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to a highest 80 MHz frequency in the 240 MHz bandwidth indicating a frequency position of the 996-tone RU and 484-tone RU in the 240 MHz bandwidth, The method includes a step of determining or indicating a frequency location of an RU, and a step of analyzing at least a portion of a resource unit allocation subfield among a plurality of resource unit allocation subfields to determine an RU that forms an MRU.

[0039] Specifically, the PPDU receiving device can determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form the first MRU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and the resource unit allocation subfield corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RUs that form the first MRU are located.

[0040] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0041] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the PPDU receiving device skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0042] According to a twelfth aspect, the present application further provides a PPDU transmission method, comprising: receiving a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including continuous 240 MHz, the first MRU including 996-tone RU and 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating frequency positions of the 996-tone RU and 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a position of the 160 MHz subblock in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to a second lowest 80 MHz frequency in the 240 MHz bandwidth indicating the 996-tone RU and 484-tone RU in the 240 MHz bandwidth, The method includes a step of determining or indicating a frequency location of an RU, and a step of analyzing at least a portion of a resource unit allocation subfield among a plurality of resource unit allocation subfields to determine an RU that forms an MRU.

[0043] Specifically, the PPDU receiving device can determine the frequency locations in the 240 MHz 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 second lowest 80 MHz frequency and the resource unit allocation subfield corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RUs that form the first MRU are located.

[0044] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0045] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the PPDU receiving device can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0046] It will be appreciated that the relevant supplementary explanations of the methods in the first to sixth aspects are also applicable to the methods in the seventh to twelfth aspects.

[0047] The methods of the first to sixth aspects may be performed by a PPDU transmitting device, and the methods of the seventh to twelfth aspects may be performed by a PPDU receiving device.

[0048] The PPDU transmitting device may be an access point or a station, and the PPDU receiving device may be a station or an access point.

[0049] According to a thirteenth aspect, there is provided a PPDU transmitting apparatus, comprising: a processing unit configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield corresponding to an MRU, a resource unit allocation subfield corresponding to an MRU indicating that a 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and a number of resource unit allocation subfields corresponding to an MRU among the resource unit allocation subfields corresponding to each 80 MHz sub-block among a plurality of 80 MHz sub-blocks in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU; and a transmitting unit configured to transmit the PPDU.

[0050] The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz. The bandwidth includes one or more 80 MHz sub-blocks. For example, when the bandwidth is 240 MHz, three 80 MHz sub-blocks are included, and when the bandwidth is 320 MHz, four 80 MHz sub-blocks are included. Thus, the resource unit allocation subfield indication scheme is simple, and the PPDU receiving device (e.g., a station) can determine the type of MRU based on the number of resource unit allocation subfields corresponding to the MRU among the resource unit allocation subfields corresponding to each 80 MHz sub-block among the multiple 80 MHz sub-blocks in the bandwidth for transmitting the PPDU. The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz. This can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0051] According to a fourteenth aspect, the present application further provides a PPDU transmitting device, comprising: A processing unit configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a continuous 240 MHz 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 are set according to a standard; and a transmitting unit configured to transmit the PPDU.

[0052] Thus, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU. The transmitting device can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, and thereby allocate the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combining cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0053] According to a fifteenth aspect, the present application further provides a PPDU transmitting device, comprising: a processing unit configured to generate a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; and a transmitting unit configured to transmit the PPDU.

[0054] Thus, the standard specifies the frequency positions in the 320 MHz 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 transmitting device can accurately determine the frequency positions in the 320 MHz 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, and thereby allocate the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combining cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 2*996+484-tone RU and the 484+2*996-tone RU can be reduced.

[0055] According to a sixteenth aspect, the present application further provides a PPDU transmitting device, comprising: A processing unit configured to generate a PPDU, the PPDU including 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 a frequency location of a 160 MHz subblock to which the first MRU belongs in a bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by an indication information transmitted by an AP; and a transmitting unit configured to transmit the PPDU.

[0056] That is, 996-tone RUs and 484-tone RUs can be combined into MRUs that are only within the allowed 160 MHz sub-blocks defined in the standard or indicated by the instruction information sent by the AP.

[0057] In this way, the transmitting device can accurately determine which 160 MHz sub-blocks contain 996-tone RUs and 484-tone RUs in a 996+484-tone RU or 484+996-tone RU, and thereby allocate the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a manner, different combining cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0058] According to a seventeenth aspect, the present application further provides a PPDU transmitting device, comprising: a processing unit configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 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 a lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to a highest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and a transmitting unit configured to transmit the PPDU.

[0059] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0060] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmitting device skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0061] Optionally, the PPDU may further include a resource unit allocation subfield indication field to indicate that the PPDU does not include a resource unit allocation subfield corresponding to the second 80 MHz subblock. The resource unit allocation subfield indication field may be, for example, a bitmap. Each bit in the bitmap corresponds to one 20 MHz subblock in the 240 MHz bandwidth, and indicates whether the PPDU includes a resource unit allocation subfield corresponding to the 20 MHz subblock. For example, the bitmap may be 111100001111, indicating that the PPDU does not include a resource unit allocation subfield corresponding to the second 80 MHz subblock.

[0062] According to an eighteenth aspect, an embodiment of the present application further provides a PPDU transmitting device, comprising: a processing unit configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a location 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 a second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and a transmitting unit configured to transmit the PPDU.

[0063] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmitting device can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0064] According to a nineteenth aspect, the present application further provides a PPDU transmitting device, comprising: a receiving unit configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield corresponding to an MRU, the resource unit allocation subfield indicating that a 242-tone RU corresponding to the resource unit allocation subfield belongs to the MRU, and a number of resource unit allocation subfields corresponding to the MRU among the resource unit allocation subfields corresponding to each 80 MHz sub-block among a plurality of 80 MHz sub-blocks in a bandwidth for transmitting the PPDU is for determining a type of the MRU; and and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0065] It may 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 transmitting device may 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 subfields corresponding to each 80 MHz subblock among the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU.

[0066] In this way, the resource unit allocation subfield indication scheme is simplified, and the transmitting device can determine which type of MRU is included in the bandwidth for transmitting the PPDU based on the resource unit allocation subfield, which can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0067] According to a twentieth aspect, the present application further provides a PPDU transmitting device, comprising: A receiving unit configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a continuous 240 MHz 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 are set according to a standard; and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0068] In such a manner, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU. The transmitting device can determine that the bandwidth for transmitting the PPDU includes two first MRUs based on the resource unit allocation subfield, and can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a manner, different combination cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0069] According to a twenty-first aspect, the present application further provides a PPDU transmitting device, comprising: a receiving unit configured to receive a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0070] In such a scheme, the standard specifies the frequency locations in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU. The transmitting device can determine that the bandwidth for transmitting the PPDU includes the first MRU and the second MRU based on the resource unit allocation subfield, and can accurately determine the frequency locations in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, with such an approach, different combining 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 2*996+484-tone RU and 484+2*996-tone RU can be reduced.

[0071] According to a twenty-second aspect, the present application further provides a PPDU transmitting device, comprising: A receiving unit configured to receive a PPDU, the PPDU including 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, a frequency location of a 160 MHz subblock to which the first MRU belongs in a bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by an indication information transmitted by an AP; and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0072] In this way, the transmitting device can determine based on the resource unit allocation subfield that the bandwidth for transmitting the PPDU includes an MRU including 996-tone RUs and 484-tone RUs, and can accurately determine which 160 MHz sub-blocks the 996-tone RUs and 484-tone RUs include, and thereby allocate the MRU obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, in such a manner, different combining cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RUs and 484+996-tone RUs can be reduced.

[0073] According to a twenty-third aspect, the present application further provides a PPDU transmitting device, comprising: a receiving unit configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including a 96-tone RU and a 484-tone RU in the 240 MHz bandwidth, the resource unit allocation subfield indicating the first MRU further indicating frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz sub-block to which the first MRU belongs, and the resource unit allocation subfield indicating the first MRU in the resource unit allocation subfield corresponding to a lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to a highest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0074] Specifically, the processing unit of the transmitting device can determine the frequency locations in the 240 MHz 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 80 MHz frequency and the resource unit allocation subfield corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RUs that form the first MRU are located.

[0075] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0076] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmitting device skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0077] According to a twenty-fourth aspect, the present application further provides a PPDU transmitting device, comprising: a receiving unit configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a location 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 a second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth; and a processing unit configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0078] Specifically, the transmitting device can determine the frequency locations in the 240 MHz 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 second lowest 80 MHz frequency and the resource unit allocation field corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RUs that form the first MRU are located.

[0079] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0080] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmitting device can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0081] It should be understood that the transmitting device in the thirteenth to eighteenth aspects is a PPDU transmitting device, and the transmitting device in the nineteenth to twenty-fourth aspects 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.

[0082] The relevant supplementary explanations regarding the transmission methods of the first to twelfth aspects are also applicable to the transmission devices of the thirteenth to twenty-fourth aspects.

[0083] According to a twenty-fifth aspect, an implementation of the present application further provides a communication device configured to transmit a PPDU. The communication device may include a processor, a transceiver, and optionally further include a memory. When the processor executes a computer program or instructions in the memory, a method according to any one of the implementations of the first to twelfth aspects is performed.

[0084] According to a twenty-sixth aspect, an implementation of the present application further provides a computer-readable storage medium storing instructions for instructing a communication device to perform a method according to any one of the implementations of the first to twelfth aspects.

[0085] According to a twenty-seventh aspect, an implementation of the present application further provides a computer program product, the computer program product including a computer program, which, when executed on a computer, enables the computer to perform a method according to any one of the implementations of the first to twelfth aspects.

[0086] According to a twenty-eighth aspect, the present application further provides a processor configured to execute a method according to any one of the implementation forms of the first to twelfth aspects. In the process of executing these methods, the process of transmitting the information and the process of receiving the information in the methods can be understood as the process of outputting the information by the processor and the process of receiving the input information by the processor. Specifically, when outputting information, the processor outputs the information to the transceiver, so that 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 the information reaches the transceiver. Similarly, when the processor receives input information, the transceiver receives the information and inputs the information to the processor. Furthermore, after the transceiver receives the information, other processing may need to be performed on the information before the information is input to the processor.

[0087] In this case, in the absence of a specific statement about operations such as transmission, sending, and receiving with respect to the processor, or unless the operations are inconsistent with the actual functionality or internal logic of the operations in the relevant description, the operations may be more generally understood as being operations such as input, receiving, and output of the processor, rather than operations such as transmission, sending, and receiving performed directly by the radio frequency circuits and antennas.

[0088] In a specific implementation, the processor may be a processor specifically configured to implement these methods, or a processor configured to execute computer instructions in the memory to implement these methods, such as a general-purpose processor. The memory may be a non-transitory memory, such as a read only memory (ROM). The memory and the processor may be integrated on the same chip, or may be separately arranged on different chips. The type of memory and the manner of arranging the memory and the processor are not limited in the embodiments of the present invention.

[0089] According to a twenty-ninth aspect, the present application provides a chip system. The chip system includes a processor and an interface configured to assist a communication transmission device in implementing the functionality of the method according to any one of the first to eighth aspects, such as determining or processing at least one of the data and information related to said method. In one possible design, the chip system further includes a memory, the memory configured to store the information and data required for said communication device. The chip system may be a chip, or may include a chip and another separate component.

[0090] According to a thirtieth aspect, the present application provides a functional entity, the functional entity being configured to perform a method according to any one of the first to eighth aspects. [Brief description of the drawings]

[0091] [Figure 1] FIG. 1 is a schematic diagram of a network structure according to an embodiment of the present application; [Diagram 2] 1 is a schematic diagram of the structure of a communication device according to an embodiment of the present application; [Diagram 3] 1 is a schematic diagram of a chip or chip system structure according to an embodiment of the present application. [Figure 4A] FIG. 2 is a schematic diagram of a possible resource unit allocation scheme. [Figure 4B] FIG. 2 is a schematic diagram of another possible resource unit allocation scheme; [Figure 5A] FIG. 2 is a schematic diagram of the structure of a signal field. [Figure 5B] FIG. 2 is a schematic diagram of another structure of the signal field. [Figure 5C] 1 is a schematic diagram of the structure of a PPDU. [Figure 6A] 1 is a schematic flowchart of a PPDU transmission method according to an embodiment of the present application; [Figure 6B] This is a schematic scenario diagram of an MRU synthesis example included in 80 MHz. [Figure 6C]This is a schematic scenario diagram of the MRU synthesis case included in 160 MHz. [Figure 6D] This is a schematic scenario diagram of the MRU synthesis case included in 240 MHz. [Figure 6E] FIG. 13 is another schematic scenario diagram of the MRU synthesis case included in 160 MHz. [Figure 6F-1] This is a schematic scenario diagram of the MRU synthesis case included in 320 MHz. [Figure 6F-2] This is a schematic scenario diagram of the MRU synthesis case included in 320 MHz. [Figure 6F-3] This is a schematic scenario diagram of the MRU synthesis case included in 320 MHz. [Figure 6G] FIG. 13 is another schematic scenario diagram of the MRU synthesis case included in 320 MHz. [Figure 7A] FIG. 13 is another schematic scenario diagram of the MRU synthesis case included in 240 MHz. [Figure 7B] FIG. 13 is another schematic scenario diagram of the MRU synthesis case included in 240 MHz. [Figure 8A] FIG. 2 is a schematic diagram of resource unit numbering according to an embodiment of the present application; [Figure 8B] 1 is a schematic flowchart of a transmission method according to an embodiment of the present application; [Figure 8C] FIG. 13 is another schematic scenario diagram of the MRU synthesis case included in 240 MHz. [Figure 9A] FIG. 2 is a schematic diagram of a resource unit allocation scenario. [Figure 9B] FIG. 2 is a schematic diagram of a signal field structure according to an embodiment of the present application; [Figure 9C] FIG. 2 is a schematic diagram of another signal field structure according to an embodiment of the present application; [Figure 9D] FIG. 13 is a schematic diagram of yet another signal field structure according to an embodiment of the present application; [Figure 10] 4 is another schematic flowchart of a transmission method according to an embodiment of the present application; [Figure 11A]FIG. 13 is a schematic diagram of yet another signal field structure according to an embodiment of the present application; [Figure 11B] FIG. 13 is a schematic diagram of yet another signal field structure according to an embodiment of the present application; [Figure 12] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 13] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 14] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 15] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 16] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 17] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 18] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 19] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 20] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 21] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 22] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; [Figure 23] 1 is a schematic diagram of the structure of a transmitting device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0092] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more apparent, the following further describes the embodiments of the present application in detail with reference to the accompanying drawings.

[0093] The embodiments of the present application may be applied to wireless local area network (WLAN) scenarios, IEEE 802.11 system standards, such as the IEEE 802.11be standard, or next generation or further next generation standards. Alternatively, the embodiments of the present application may be applied to wireless local area network systems, such as internet of things (IoT) or vehicle to everything (V2X) networks. Of course, the embodiments of the present application may also be applied to other possible communication systems, such as a global system for mobile communications (GSM), a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) communication system, and a future 5G communication system.

[0094] For example, Figure 1 shows a network structure to which the PPDU transmission method of the present application is applicable. Figure 1 is a schematic diagram of a network structure according to an embodiment of the present application. The network structure may include one or more access point (AP) stations and one or more non-access point stations (noon-AP STAs). In this specification, for ease of description, the access point stations are referred to as access points (APs), and the non-access point stations are referred to as stations (STAs). The APs are, for example, AP1 and AP2 in Figure 1, and the STAs are, for example, STA1, STA2, and STA3 in Figure 1.

[0095] An access point may be an access point used by a terminal device (such as a mobile phone) to access a wired (or wireless) network, and is mainly deployed in houses, buildings, and parks. The typical coverage radius is from a few tens of meters to a little over 100 meters. Of course, an access point can also be deployed outdoors. An access point is equivalent to a bridge that connects 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 of the 802.11 suite, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. The access point of the present application may be a high efficiency (HE) AP or an extremely high throughput (EHT) AP, or may be an access point applicable to future Wi-Fi standards.

[0096] An access point may include a processor and a transceiver, the processor configured to control and manage the activity of the access point, and the transceiver configured to receive and transmit information.

[0097] The station may be a wireless communication chip, a wireless sensor, a wireless communication terminal, etc., and may be referred to as a user. For example, the station may be a mobile phone supporting a Wi-Fi communication function, a tablet computer supporting a Wi-Fi communication function, a set-top box supporting a Wi-Fi communication function, a smart television supporting a Wi-Fi communication function, an intelligent wearable device supporting a Wi-Fi communication function, an in-vehicle communication device supporting a Wi-Fi communication function, or a computer supporting a Wi-Fi communication function. Optionally, the station may support the 802.11be standard. The station may further support multiple wireless local area network (WLAN) standards of the 802.11 group, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0098] The station may include a processor and a transceiver, the processor configured to control and manage the activity of the access points, and the transceiver configured to receive or transmit information.

[0099] The access point of the present application may be a high efficiency (HE) STA or an extremely high throughput (EHT) STA, or may be a STA applicable to future Wi-Fi standards.

[0100] For example, the access points and stations may be devices applied in the Internet of Vehicles, Internet of Things nodes or sensors in the Internet of Things (IoT), smart cameras, smart remote controls, and smart water meters in smart homes, and sensors in smart cities.

[0101] The access point and the station in the embodiment of the present application may be collectively referred to as a communication device. The communication device may include a hardware structure and a software module, and the above-mentioned functions are implemented in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Some of the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module.

[0102] 2 is a schematic diagram of a structure of a communication device according to an embodiment of the present application. As shown in FIG. 2, a communication device 200 may include a processor 201 and a transceiver 205, and may further include a memory 202.

[0103] The transceiver 205 may be referred to as a transceiver unit, transceiver machine, transceiver circuit, etc., and is configured to implement a transceiver function. The transceiver 205 may include a receiver and a transmitter. The receiver may be referred to as a receiver machine, receiver circuit, etc., and is configured to implement a receiving function. The transmitter may be referred to as a transmitter machine, transmitter circuit, etc., and is configured to implement a transmitting function.

[0104] The memory 202 may store a computer program, software code, or instruction 204, which may further be referred to as firmware. The processor 201 may control the MAC layer and the PHY layer by executing the computer program, software code, or instruction 203 in the processor 201 or by calling the computer program, software code, or instruction 204 stored in the memory 202 to implement the PPDU transmission method provided in the following embodiments of the present application. The processor 201 may be a central processing unit (CPU), and the memory 202 may be, for example, a read-only memory (ROM), or a random access memory (RAM).

[0105] The processor 201 and transceiver 205 described in this application may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed signal IC, an application-specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, or the like.

[0106] The communication device 200 may further include an antenna 206. The modules included in the communication device 200 are merely examples for purposes of illustration and are not limiting of the present application.

[0107] As described above, the communication device 200 described in the above embodiment may be an access point or a station. However, the scope of the communication device described herein is not so limited, and the structure of the communication device may not be limited in FIG. 2. The communication device may be a separate device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit (IC), chip, chip system, or subsystem; (2) a set including one or more ICs, where the set of ICs may optionally also include a storage component for storing data and instructions; (3) a module that may be embedded in another device; (4) a receiver, an intelligent terminal, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a cloud device, an artificial intelligence device, or the like; or (5) anything else. It can be implemented in the form:

[0108] For a communication device implemented in the form of a chip or chip system, please refer to the schematic diagram of the structure of the chip or chip system 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 there may be multiple interfaces 302. Optionally, the chip or chip system may include a memory 303.

[0109] The embodiments of the present application do not limit the protection scope and applicability of the claims. Those skilled in the art may adaptively change the functions and arrangements of the elements of the present application, or omit, substitute, or add various processes or components as appropriate, without departing from the scope of the embodiments of the present application.

[0110] The AP communicates with the STA. The AP may 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 may be used for wireless communication between the AP and the STA. In the OFDMA transmission scenario, the spectrum bandwidth is divided into several resource units (RUs) according to the WLAN protocol. For example, the 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, and the latter two 80MHz sub-blocks may be separated, i.e., the 160MHz sub-block formed by 80+80MHz is non-contiguous.

[0111] 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 spectrum bandwidth may be divided into multiple types of RUs, and the RUs 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 that includes 26 subcarriers, and the 26-tone RU may be allocated to one user for use. In addition, the size of the RU may alternatively be 242-tone, 484-tone, 996-tone, etc., and these RUs are generally referred to as large RUs. In general, an RU whose size is 106-tone or larger may be allocated to one or more users. In 802.11be, multiple RUs may be allocated to one user, and the user in this application may be understood to be a STA.

[0112] When the channel bandwidth for transmitting PPDU is 20 MHz, a possible resource unit allocation scheme is shown in Figure 4A. Figure 4A is a schematic diagram of a possible resource unit allocation scheme used when the bandwidth for transmitting PPDU is 20 MHz. The entire 20 MHz bandwidth may include the entire resource unit including 242 subcarriers (242-tone RU), or may include various combinations of resource units including 26 subcarriers (26-tone RU), resource units including 52 subcarriers (52-tone RU), or resource units including 106 subcarriers (106-tone RU). In addition to the RUs used for transmitting data, some guard subcarriers, null subcarriers, or direct current (DC) subcarriers are further included.

[0113] When the channel bandwidth for transmitting the PPDU is 40 MHz, a possible resource unit allocation scheme is as shown in Figure 4B. Figure 4B is a schematic diagram of a possible resource unit allocation scheme used when the channel bandwidth for transmitting the PPDU is 40 MHz. The entire bandwidth is roughly equivalent to a copy of a 20 MHz tone plan. The entire 40 MHz bandwidth may include the entire resource unit containing 484 subcarriers (484-tone RU), or may include various combinations of 26-tone RU, 52-tone RU, 106-tone RU, or 242-tone RU.

[0114] When the channel bandwidth for transmitting the PPDU is 80 MHz, the entire channel bandwidth is roughly equivalent to two copies of the 40 MHz tone plan. The entire 80 MHz bandwidth may include the entire resource unit (996-tone RU) containing 996 subcarriers, or may include various combinations of 484-tone RU, 242-tone RU, 106-tone RU, 52-tone RU, or 26-tone RU. In addition, a Center 26-Tone RU containing two 13-tone subunits exists in the middle of the entire 80 MHz channel bandwidth.

[0115] When the bandwidth is 160MHz or 80+80MHz, the entire bandwidth can be thought of as being two copies of the 80MHz 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.

[0116] The AP may allocate resources to the STAs by RUs and inform the STAs of the resources allocated to them by using a physical layer protocol data unit (PPDU). Specifically, the AP may include resource allocation information in a signal field (SIG) included in the PPDU to indicate the allocated RUs to the STAs. 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).

[0117] In 802.11ax, the AP notifies the user of the RU allocation by using a signal field (SIG). Figure 5A is a schematic diagram of the structure of the signal field. As shown in Figure 5A, the HE-SIG includes a common field and a user specific field.

[0118] The common field includes 1 to N resource unit allocation subfields, a cyclic redundancy code (CRC) used for verification, and a Tail subfield used for cyclic recovery. The user-specific field includes a user field corresponding to the RU indicated by the resource unit allocation subfield.

[0119] A resource unit allocation subfield is a resource unit allocation index, and a 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 20 MHz subblock corresponds to one 242-tone RU. In this case, it can also be understood that one resource unit allocation subfield corresponds to one 20 MHz subblock.

[0120] The resource unit allocation index is indicated by one or more indexes, and each index corresponds to one 20 MHz sub-block of the bandwidth. For example, in the 802.11ax protocol, the index table of the resource unit allocation subfield is Table 1. Since the index table indicates the resources to be allocated, the index table may also be called a resource allocation information table. [Table 1A] [Table 1B] [Table 1C]

[0121] In Table 1, the first column indicates an index, and the middle column indicates the component status of the RU indicated by the index in the first column. The resource unit allocation subfield may be an index in the first column of Table 1, indicating the resource unit allocation status corresponding to 20 MHz corresponding to the resource unit allocation subfield. For example, the resource unit allocation subfield is "00111y 2 y 1 y 0 ", which indicates that the 242-tone RU corresponding to the resource unit allocation subfield is split into four RUs, namely, a 52-tone RU, a 52-tone RU, a 26-tone RU, and a 106-tone RU.

[0122] When the RU corresponding to the index includes an RU with 106 or more subcarriers, the first three characters of the index indicate the RU allocation status corresponding to the 20 MHz 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 with 106 or more subcarriers. For example, index 01000y 2 y 1 y 0 For y, "01000" indicates that the 20 MHz corresponding to the resource unit allocation subfield includes one 106-tone RU and five 26-tone RUs, 2 y 1 y 0 is 010, which indicates that 106-tone RUs are allocated to three users.

[0123] The user-specific field of the signal field (HE-SIG) includes 1 to M user fields according to the resource unit allocation order. The M user fields are usually in a group of two, and every two user fields are followed by a CRC field and a tail field. If the number of user fields is odd, the last user field is in a group by itself, and the last user field is followed by a CRC field and a tail field. For RUs with less than 106 subcarriers, a specific field portion includes user fields corresponding to the RU. For RUs with 106 or more subcarriers, a specific field portion includes one or more user fields corresponding to the RU.

[0124] The concept of Content Channel (CC) is further introduced in the 802.11ax protocol. When the bandwidth is 40 MHz or more, the signal field can be transmitted in two Content Channels (CC). The resource unit allocation subfield in the signal field is divided into a first part and a second part. The first part of the resource unit allocation subfield is transmitted in CC1, and the second part of the resource unit allocation subfield 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.

[0125] 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 on CC1 and the user fields corresponding to the odd-numbered resource unit allocation subfields are also transmitted on CC1. Even-numbered resource unit allocation subfields in the signal field are transmitted on CC1 and the user fields corresponding to the even-numbered resource unit allocation subfields are also transmitted on CC2.

[0126] 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 to 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, i.e., resource unit allocation subfield 6 does not correspond to any user field.

[0127] The user field includes an association identifier (AID). A STA receiving a PPDU obtains the user field of the STA based on the AID, and obtains the RU indicated by the resource unit allocation subfield corresponding to the user field to determine the RU allocated to the STA.

[0128] Although multiple RU allocation modes are configured for the resource unit allocation subfield shown in Table 1, 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, there are three RUs, the three RUs are RU1, RU2, and RU3, and the channel conditions of RU1 and RU3 are better than that of RU2. In an ideal case, RU1 and RU3 can be allocated to the same user. However, in the resource unit allocation subfield indication 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. It can be seen that the flexibility of RU allocation is low, and the spectrum utilization is also low.

[0129] 5C is a schematic diagram of a structure of a PPDU according to an 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 Repeated 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 in the physical layer header (or called the preamble portion) of the PPDU.

[0130] The L-STF, L-LTF, and L-SIG may be understood as legacy preamble fields and are used to ensure coexistence of new and legacy devices. The RL-SIG is used to increase the reliability of the legacy signal field.

[0131] U-SIG and EHT-SIG are signal fields. U-SIG is used to carry some general information, such as information indicating PPDU version, information indicating uplink / downlink, information indicating frequency domain bandwidth of PPDU, puncturing indication information. EHT-SIG includes information indicating resource allocation, information indicating data demodulation, etc. The structure of EHT-SIG is similar to that of HE-SIG in 802.11ax shown in Figure 5A. The common field of EHT-SIG does not include the intermediate 26-tone RU indication subfield.

[0132] Please note that in this embodiment of the present application, the fields in the PPDU in the 802.11be scenario are used as an example for explanation. The fields in the PPDU referred to in the embodiment of the present application are not limited to the fields related to 802.11be, and the fields in the PPDU referred to in the embodiment of the present application may alternatively be the fields related to the standard version later than 802.11be.

[0133] The 802.11be standard under discussion supports a maximum bandwidth of 320MHz. In the 802.11be standard, the possible resource unit allocation scheme used when the bandwidth is 20MHz or 40MHz is the same as the above possible resource unit allocation scheme used when the bandwidth is 20MHz or 40MHz in the 802.11ax standard. The bandwidth in the embodiment of this application is the bandwidth for transmitting PPDU.

[0134] When the bandwidth is 160 MHz, the bandwidth may be thought of as being four copies of the 40 MHz tone plan, with no 26-tone RU in between. The entire bandwidth may include the entire 2*996-tone RUs, or 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] Similarly, when the bandwidth is 320 MHz, the entire bandwidth may be thought of as being two copies of the 160 MHz tone plan. The entire bandwidth may include all 4*996-tone RUs, or may include various combinations of 26-tone RUs, 52-tone RUs, 106-tone RUs, 242-tone RUs, 484-tone RUs, or 996-tone RUs.

[0136] All of the above tone plans are in terms of 242-tone RUs. The left side of the diagram may be considered to be the lowest frequency and the right side of the diagram may be considered to be the highest frequency. From left to right, the 242-tone RUs may be numbered as a first 242-tone RU, a second 242-tone RU, a third 242-tone RU, and so on. Alternatively, the 484-tone RUs may be numbered as a first 484-tone RU, a second 484-tone RU, and so on.

[0137] For example, if the bandwidth is 80 MHz and the 80 MHz bandwidth includes two 484-tone RUs, the first 40 MHz sub-block of the 80 MHz bandwidth corresponds to the first 484-tone RU, and the second 40 MHz sub-block of the 80 MHz bandwidth corresponds to the second 484-tone RU, according to ascending frequency order. If the 80 MHz bandwidth includes four 242-tone RUs, the first through fourth 20 MHz sub-blocks of the 80 MHz bandwidth correspond to the first through fourth 242-tone RUs, respectively, according to ascending frequency order.

[0138] In order to improve the flexibility of RU allocation and improve the frequency utilization efficiency, the related technology provides a method that can support the combination of multiple RUs into one RU and the allocation of the RU to one or more stations. The RU obtained by combining multiple RUs can be called a multiple resource unit (MRU).

[0139] Related techniques provide a strategy for combining several RUs into an MRU, where two or more RUs can be combined into one MRU and allocated to one or more stations.

[0140] In order to avoid an overly complicated RU combining instruction scheme due to overly flexible combining, RU combining specifically follows the following rules: (1) Small RUs and large RUs are not combined, (2) Combining across 20 MHz is not supported for small RUs, and (3) Small RUs to be combined must be contiguous.

[0141] The combination of large RUs may include the following: 484-tone RU and 242-tone RU are combined into 484+242-tone RU, 996-tone RU and 484-tone RU are combined into 994+484-tone RU, two 996-tone RU and 484-tone RU are combined into 2*994+484-tone RU, and three 996-tone RU and 484-tone RU are combined into 3*994+484-tone RU. The frequency domain resource corresponding to the 484+242-tone RU is 60MHz. The frequency domain resource corresponding to the 994+484-tone RU is 120MHz. The frequency domain resource corresponding to the 2*994+484-tone RU is 200MHz. The frequency domain resource corresponding to the 3*994+484-tone RU 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.

[0142] In this application, MRUs are classified according to the two RUs that form the MRU. For example, an MRU (e.g., 484+242-tone RU) obtained by combining 484-tone RU and 242-tone RU is an MRU or MRU combination type. An MRU (e.g., 484+996-tone RU) obtained by combining 484-tone RU and 996-tone RU is another combination type. RUs that form the same type of MRU have different frequency positions, and each type of MRU may include multiple combination cases. For example, in a 484+242-tone RU obtained by combining 484-tone RU and 242-tone RU, when the bandwidth is 80MHz, the 484-tone RU and 242-tone RU may have different frequency positions. Thus, the 484+242-tone RU includes multiple combination cases.

[0143] Specifically, for OFDMA transmission with a bandwidth of 80 MHz, the supported MRU combining types are shown in Table 2. The supported MRU combining types may include combining 484-tone RU and 242-tone RU into 484+242-tone RU. The bandwidth of 80 MHz 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 RU belongs to the non-MRU. In ascending order of frequency, the position of the non-MRU can be any one of the first 242-tone RU, the second 242-tone RU, the third 242-tone RU, or the fourth 242-tone RU. Therefore, there are four combining cases of 484+242-tone RU. [Table 2]

[0144] As shown in Table 3, for OFDMA transmission with a bandwidth of 160 MHz, the supported MRU combining types include combining 484-tone RU and 242-tone RU to 484+242-tone RU, and combining 996-tone RU and 484-tone RU to 994+484-tone RU. The equivalent bandwidth of 994+484-tone RU is 120 MHz. [Table 3]

[0145] In an OFDMA transmission with a bandwidth of 240 MHz, if the 240 MHz bandwidth is a contiguous 240 MHz in the spectrum, large RU combining is only allowed for 160 MHz sub-blocks formed by two contiguous 80 MHz sub-blocks. In an OFDMA transmission with a bandwidth of 240 MHz, the supported RU combining cases and RU combining cases are the same as those in an OFDMA transmission with a bandwidth of 160 MHz.

[0146] In OFDMA transmission with 320MHz bandwidth, the supported combining cases may include combining three 996-tone RUs into a 3*996-tone RU, combining three 996-tone RUs and one 484-tone RU into a 3*996+484-tone RU, and supported RU combining cases in OFDMA transmission with 160MHz bandwidth. The equivalent bandwidth of 3*996-tone RU is 240MHz, and the equivalent bandwidth of 3*996+484-tone RU is 280MHz. The 160MHz supported RU combining cases may be performed in the primary 160MHz or secondary 160MHz in the 320MHz or 160+160MHz bandwidth.

[0147] It should be understood that in OFDMA transmissions with bandwidths of 80 MHz, 160 MHz, 240 MHz, or 320 MHz, the MRU combining types allowed when the bandwidth is 80 MHz are allowed in each 80 MHz sub-block.

[0148] It is obvious that the above currently supported MRU synthesis types are not all possible RU synthesis methods. It should be understood that if all possible permutations and synthesis methods of RUs are provided, RU synthesis will be more flexible, but the complexity will increase accordingly.

[0149] The embodiment of the present application shows possible MRU synthesis types from 80 MHz to 320 MHz. For example, Table 2 shows some possible MRU synthesis types. [Table 4]

[0150] In Table 4, the first column indicates the MRU synthesis 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 includes 484-tone RU and 996-tone RU. The middle column indicates the equivalent bandwidth of the MRU, and the third column indicates the transmission bandwidth of the MRU. For example, in a transmission bandwidth of 160 MHz, the MRU synthesis type may be "242+242+996" or "484+996".

[0151] Based on the above MRU synthesis types, the embodiments of the present application provide several MRU instruction strategies.

[0152] In the MRU indication strategy in the embodiment of the present 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 an index shown in Table 5. The index in Table 5 may be a reserved index in Table 1. [Table 5A] [Table 5B]

[0153] The above Table 5 may be combined into one row and presented in the table, or entries with 1 to 8 contributing user fields may be combined into one row and presented in the table. The presentation format of the table is not limited in this application.

[0154] It should be understood that the order numbers 1, 2, 3, ..., 9 of index 1, index 2, index 3, ..., and index 9 do not indicate that the indexes are 1, 2, 3, ..., and 9. The order numbers 1, 2, 3, ..., and 9 of index 1, index 2, index 3, ..., and index 9 are only used to identify that the aforementioned nine indexes are different indexes. The specific representation manner of the indexes is not limited in this application.

[0155] When the resource unit allocation subfield can indicate the resource unit allocation status by using any one of the 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 that the MRU contributes to the user-specific fields in 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 that correspond to the resource unit allocation subfield in the EHT-SIG content channel in which the resource unit allocation subfield is located. The user field that corresponds to the resource unit allocation subfield is the user field of the user to which the resource units indicated by the resource unit allocation subfield are allocated.

[0156] Optionally, each index among index 2 to index 9 includes an RU allocation indication portion and a user field indication portion. In an embodiment, the RU allocation indication portions of index 2 to index 9 are the same, and all indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to one MRU. The user field indication portions of index 2 to index 9 are different, and respectively indicate that 1 to 8 user fields contribute to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield. The user field indication portion may be, for example, 3 bits. The RU allocation indication portion of index 1, which indicates 0 user fields, is different from the RU allocation indication portions of index 2 to index 9, which indicate 1 to 8 user fields.

[0157] Specifically, the structure from index 2 to index 9 is k n k n-1 ...k 2 k 1 y 2 y 1 y 0 k may be n k n-1 ...k 2 k 1 is the RU allocation indicator, n is the number of bits in the user field indicator, and y 2 y 1 y 0 is a user field indication part, which is 3 bits and indicates 1 to 8 user fields separately.

[0158] A station receiving the PPDU can determine, based on the resource unit allocation subfields, that the 242-tone RUs corresponding to the resource unit allocation subfields belong to the MRU, and can determine the RUs that form the MRU based on the number of resource unit allocation subfields among the resource unit allocation subfields corresponding to each 80 MHz subblock that indicate that the corresponding 242-tone RUs belong to that MRU.

[0159] Specifically, Figure 6A is a schematic flow chart of a PPDU transmission method. The above-mentioned solution can be implemented by using the following steps of the PPDU transmission method.

[0160] 601. The AP generates a PPDU.

[0161] The PPDU includes a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including 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 among the resource unit allocation subfields corresponding to each 80 MHz subblock among the plurality of 80 MHz subblocks in the bandwidth for transmitting the PPDU is for determining or indicating the type of the MRU.

[0162] 602. The AP transmits a PPDU.

[0163] In response, the STA receives the PPDU.

[0164] 603. The STA determines the type of RU of the MRU for transmitting the PPDU based on the number of resource unit allocation subfields indicating that the corresponding 242-tone RU belongs to the MRU among the resource unit allocation subfields corresponding to each 80 MHz subblock.

[0165] It should be understood that the above PPDU transmission method is described by using an embodiment in which an AP transmits a PPDU to a STA. This method is also applicable to a scenario in which an AP transmits a PPDU to an AP and a scenario in which a STA transmits a PPDU to a STA.

[0166] To determine which RUs form an MRU, the STA determines the type of RU that is the MRU for transmitting the PPDU.

[0167] In the following, a method is provided in which a STA determines which RUs form an MRU based on the number of resource unit allocation subfields indicating that the corresponding 242-tone RU belongs to the MRU among the resource unit allocation subfields corresponding to each 80 MHz subblock when the bandwidth is 80 MHz, 160 MHz, 240 MHz, or 320 MHz.

[0168] When the bandwidth is 80MHz, there is only one mode of MRU included. The 80MHz bandwidth may include 242+484-tone RUs obtained by combining 242-tone RUs and 484-tone RUs. In this case, the four 242-tone RUs in the 80MHz bandwidth include three 242-tone RUs belonging to MRUs, and the other 242-tone RUs are non-MRUs. The non-MRU 242-tone RUs are any one of the first 242-tone RU, the second 242-tone RU, the third 242-tone RU, and the fourth 242-tone RU. There are four possible cases of 242-tone RUs and 484-tone RUs forming 242+484-tone RUs. Figure 6B is a schematic scenario diagram of the MRU combination cases included in 80MHz. As shown in FIG. 6B, the 242+484-tone RU may be obtained by combining a first 484-tone RU and a third 242-tone RU (first to third 242-tone RUs) in an 80 MHz bandwidth, by combining a first 484-tone RU and a fourth 242-tone RU (first, second, and fourth 242-tone RUs) in an 80 MHz bandwidth, by combining a second 484-tone RU and a first 242-tone RU (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 (second, third, and fourth 242-tone RUs) in an 80 MHz bandwidth.

[0169] Thus, in an 80 MHz bandwidth, if a STA reads that three resource unit allocation subfields indicate that the corresponding 242-tone RUs belong to an MRU, the STA may determine that the three 242-tone RUs corresponding to the three resource unit allocation subfields form a 242+484-tone RU. Thus, when the bandwidth is 80 MHz, an MRU containing multiple RUs may be allocated to one or multiple stations.

[0170] It should be understood that a non-MRU in this embodiment of the present application may be a single 242-tone RU, may be multiple small RUs, or may be empty.

[0171] FIG. 6C is a schematic scenario diagram of MRU combining cases included in 160MHz. As shown in FIG. 6C, when the bandwidth is 160MHz, there are three modes for the included MRU. Mode 1: 160MHz bandwidth includes one 242+484-tone RU. The 160MHz bandwidth includes two 80MHz sub-blocks, and the 242+484-tone RU can be located in one of the 80MHz sub-blocks. The 242+484-tone RU in each 80MHz sub-block includes four possible combining cases shown in FIG. 6B. There are 4+4=8 possible combining cases (8 cases) of the 242-tone RU and the 484-tone RU forming the 242+484-tone RU.

[0172] Mode 2: 160MHz bandwidth includes two 242+484-tone RUs. The 160MHz bandwidth includes two 80MHz sub-blocks, each 80MHz sub-block includes one 242+484-tone RU, and the 242+484-tone RU in each 80MHz sub-block has four possible combination cases shown in Figure 6B. There are 4*4=16 possible combination cases (16 cases) of the 242-tone RU and the 484-tone RU forming each of the two 242+484-tone RUs.

[0173] Mode 3: 160MHz bandwidth contains one 996+484-tone RU. Because the positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU are different in the 160MHz bandwidth, there are four possible combination cases of the 996-tone RU and 484-tone RU that form the 996+484-tone RU (4 cases).

[0174] Thus, the STA may identify the MRU combining type in the 160 MHz bandwidth according to the MRU combining identification method shown in Table 6 to allocate an MRU containing multiple RUs to one or more stations when the bandwidth is 160 MHz.

[0175] Specifically, a STA receiving a PPDU can determine the MRU combining type based on the number of 242-tone RUs belonging to the MRU in each 80 MHz sub-block in the 160 MHz bandwidth indicated by the resource unit allocation subfield. [Table 6]

[0176] If the STA determines based on the resource unit allocation subfield corresponding to the 160 MHz bandwidth that three 242-tone RUs included in the first 80 MHz subblock belong to the MRU and none of the 242-tone RUs included in the second 80 MHz subblock belong to the MRU, the STA determines that the 160 MHz bandwidth includes one 484+242-tone RU and three 242-tone RUs of which the 484+242-tone RU belongs to the MRU.

[0177] If the STA determines based on the resource unit allocation subfield corresponding to the 160 MHz bandwidth that the three 242-tone RUs included in the first 80 MHz subblock belong to the MRU and the three 242-tone RUs included in the second 80 MHz subblock belong to the MRU, the STA determines that the 160 MHz bandwidth includes two 484+242-tone RUs, and that the 484+242-tone RUs in each 80 MHz subblock include three 242-tone RUs that belong to the MRU in the 80 MHz subblock.

[0178] If the STA determines based on the resource unit allocation subfield corresponding to the 160 MHz bandwidth that four 242-tone RUs included in the first 80 MHz subblock belong to the MRU and two 242-tone RUs included in the second 80 MHz subblock belong to the MRU, the STA determines that the 160 MHz bandwidth includes one 996+484-tone RU, which includes four 242-tone RUs in the first 80 MHz subblock and two 242-tone RUs that belong to the MRU in the second 80 MHz subblock. Alternatively, if the STA determines based on the resource unit allocation subfield corresponding to the 160 MHz bandwidth that two 242-tone RUs included in the first 80 MHz subblock belong to the MRU and four 242-tone RUs included in the second 80 MHz subblock belong to the MRU, the STA determines that the 160 MHz bandwidth includes one 996+484-tone RU. The 996+484-tone RU includes two 242-tone RUs that belong to the MRU in the first 80 MHz subblock and four 242-tone RUs in the second 80 MHz subblock.

[0179] Similarly, Fig. 6D is a schematic scenario diagram of the MRU synthesis case included in 240 MHz. When the bandwidth is 240 MHz, there are seven modes in the included MRU. Modes 1 to 4 can be understood according to Fig. 6D with reference to the above related description according to Fig. 6B and Fig. 6C.

[0180] In mode 4, when the bandwidth is 240 MHz continuous, 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 sub-block and a second 80 MHz sub-block (four possible combination cases), or may be in a 160 MHz bandwidth including a second 80 MHz sub-block and a third 80 MHz sub-block (four possible combination cases). There are eight possible combination cases of a 484-tone RU and a 996-tone RU forming a 996+484-tone RU (8 cases).

[0181] In mode 5, when the bandwidth is 240 MHz continuous, the 240 MHz bandwidth may include 996+484-tone RUs obtained by combining 996-tone RUs and 484-tone RUs, and 484+242-tone RUs obtained by combining 484-tone RUs and 242-tone RUs. The 996+484-tone RUs may be in the 160 MHz bandwidth including the first 80 MHz sub-block and the second 80 MHz sub-block (four possible combination cases), or may be in the 160 MHz bandwidth including the second 80 MHz sub-block and the third 80 MHz sub-block (four possible combination cases). The 484+242-tone RUs may be in the 80 MHz that does not cover the 996+484-tone RUs (four possible combination cases). In this case, when the 240MHz bandwidth contains 996+484-tone RUs and 484+242-tone RUs, there are 2*4*4=32 cases.

[0182] In mode 6, when the bandwidth is 240 MHz contiguous, 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 in mode 6.

[0183] In mode 7, when the bandwidth is 240 MHz, the 240 MHz bandwidth may include 2*996+484-tone RUs. The 2*996-tone RUs forming the 2*996+484-tone RUs are located in consecutive 160 MHz. The 484-tone RUs forming the 2*996+484-tone RUs may be located in four different 80 MHz sub-blocks, and mode 7 includes four possible combination cases (4 cases).

[0184] The STA may specify the combining type of the MRU in the 240 MHz bandwidth and the combining case of the RUs forming the MRU, in order to allocate the MRU including multiple RUs to one or more stations when the bandwidth is 240 MHz, according to the MRU combining specification method shown in Table 7. It should be understood that the number of MRUs in the 80 MHz sub-blocks in each row of Table 7 may be swapped. When the number of MRUs in the 80 MHz sub-blocks in the same row is swapped, the corresponding MRU combining type remains unchanged. [Table 7]

[0185] For example, when a STA determines based on the resource unit allocation subfield corresponding to a 240 MHz bandwidth that a first 80 MHz sub-block in the 240 MHz bandwidth includes three 242-tone RUs belonging to an MRU, a second 80 MHz sub-block includes three 242-tone RUs belonging to an MRU, and a third 80 MHz sub-block includes zero 242-tone RUs belonging to an MRU, the STA determines that the 240 MHz bandwidth includes two 484+242-tone RUs, one 484+242-tone RU located at the lowest 60 MHz frequency of the first 80 MHz sub-block in the 240 MHz bandwidth, and the other 484+242-tone RU located at the highest 20 MHz frequency of the first 80 MHz sub-block in the 240 MHz bandwidth and the lowest 40 MHz frequency of the second 80 MHz sub-block in the 240 MHz bandwidth.

[0186] Alternatively, when the STA determines based on the resource unit allocation subfield corresponding to the 240 MHz bandwidth that the first 80 MHz sub-block in the 240 MHz bandwidth includes 0 242-tone RUs belonging to the MRU, the second 80 MHz sub-block includes 3 242-tone RUs belonging to the MRU, and the third 80 MHz sub-block includes 3 242-tone RUs belonging to the MRU, the STA determines that the 240 MHz bandwidth includes two 484+242-tone RUs, one 484+242-tone RU located at the lowest 60 MHz frequency of the second 80 MHz sub-block in the 240 MHz bandwidth, and the other 484+242-tone RU located at the highest 20 MHz frequency of the second 80 MHz sub-block in the 240 MHz bandwidth and the lowest 40 MHz frequency of the third 80 MHz sub-block in the 240 MHz bandwidth.

[0187] In another example, when a STA determines based on the resource unit allocation subfield corresponding to the 240 MHz bandwidth that the first 80 MHz sub-block in the 240 MHz bandwidth includes four 242-tone RUs belonging to the MRU, the second 80 MHz sub-block includes four 242-tone RUs belonging to the MRU, and the third 80 MHz sub-block includes four 242-tone RUs belonging to the MRU, the STA determines that the 240 MHz bandwidth includes two 996+484-tone RUs. However, the STA cannot determine the 484-tone RUs and 996-tone RUs that form each 996+484-tone RU according to Table 7. When all 12 242-tone RUs in the 240 MHz bandwidth belong to the MRU, the possible RU combining case is not single.

[0188] 6E is another schematic scenario diagram of MRU combining case included in 160 MHz. As shown in FIG. 6E, the first to fourth 242-tone RUs of the first 80 MHz sub-block and the third and fourth 242-tone RUs of the second 80 MHz sub-block may form a 996+484-tone RU, and the first and second 242-tone RUs of the second 80 MHz sub-block and the first to fourth 242-tone RUs of the third 80 MHz sub-block may form a 996+484-tone RU. Alternatively, the first to fourth 242-tone RUs of the first 80 MHz sub-block and the first and second 242-tone RUs of the second 80 MHz sub-block may form a 996+484-tone RU, and the third and fourth 242-tone RUs of the second 80 MHz sub-block and the first to fourth 242-tone RUs of the third 80 MHz sub-block may form a 996+484-tone RU.

[0189] According to the index of Table 5, when the 240MHz in the bandwidth for transmitting the PPDU includes two 996+484-tone RUs, it can be seen that it is not possible to indicate the specific 996-tone RUs and the specific 484-tone RUs forming the 996+484-tone RUs. In this case, the STA receiving the PPDU cannot determine the specific 996-tone RUs and the specific 484-tone RUs forming the 996+484-tone RUs 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.

[0190] Figures 6F-1 to 6F-3 are schematic scenario diagrams of the MRU synthesis case included in 320MHz. As shown in Figures 6F-1 to 6F-3, when the bandwidth is 320MHz, 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 above related description according to Figures 6B to 6D.

[0191] In mode 11, if the next generation communication standard (e.g., 802.11be) allows a 320 MHz bandwidth to include 2*996+484-tone RUs: if the 2*996-tone RUs forming the 2*996+484-tone RUs need to be located in consecutive 160 MHz, the 484-tone RUs forming the 2*996+484-tone RUs may be located in eight different 40 MHz sub-blocks, and there are eight possible combination cases (8 cases) in mode 11. If the 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RUs need to be located in consecutive 240 MHz, the 484-tone RUs forming the 2*996+484-tone RUs may be located in eight different 40 MHz sub-blocks, and there are four possible combination cases (4 cases) in mode 11.

[0192] In mode 12, if the next generation communication standard (e.g., 802.11be) allows the 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 RUs must be located in consecutive 160MHz, there are 8 possible combination cases for the 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RUs. The 484+242-tone RUs may be located in 80MHz that does not cover the 2*996+484-tone RUs, and there are 4 possible combination cases for the 484+242-tone RUs in one 80MHz sub-block. Thus, there are a total of 8*4=32 possible combination cases in mode 12 (32 cases).

[0193] In mode 13, if the next generation communication standard (e.g., 802.11be) allows a 320 MHz bandwidth to include 2*996+484-tone RUs and 996+484-tone RUs, and the RUs in the MRU group must be contiguous, there are two possible combination cases in mode 13. In one possible combination case, a 2*996+484-tone RU is obtained by combining a 2*996-tone RU corresponding to the lowest 160 MHz frequency in the 320 MHz bandwidth and a 484-tone RU corresponding to the lowest 40 MHz frequency of the third 80 MHz sub-block, and a 996+484-tone RU is obtained by combining a 484-tone RU corresponding to the highest 40 MHz frequency of the third 80 MHz sub-block and a 996-tone RU corresponding to the fourth 80 MHz sub-block in the 320 MHz bandwidth. In another possible combining case, a 996+484-tone RU is obtained by combining a 996-tone RU corresponding to the first 80 MHz sub-block in the 320 MHz bandwidth and a 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz sub-block, and a 2*996+484-tone RU is obtained by combining a 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz sub-block and a 996-tone RU corresponding to the third and fourth 80 MHz sub-blocks.

[0194] The STA may specify the combining type of the MRU in the 320 MHz bandwidth and the combining case of the RUs 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 specifying MRU combining shown in Table 8. It should be understood that the number of MRUs in the 80 MHz sub-blocks in each row of Table 8 may be swapped. When the number of MRUs in the 80 MHz sub-blocks in the same row is swapped, the corresponding MRU combining type remains unchanged. [Table 8]

[0195] For example, when a STA determines based on the resource unit allocation subfield corresponding to the 320 MHz bandwidth that the first 80 MHz sub-block in the 320 MHz bandwidth includes 4 242-tone RUs belonging to the MRU, the second 80 MHz sub-block includes 2 242-tone RUs belonging to the MRU, the third 80 MHz sub-block includes 0 242-tone RUs belonging to the MRU, and the fourth 80 MHz sub-block includes 0 242-tone RUs belonging to the MRU, the STA determines that the 320 MHz bandwidth includes one 996+484-tone RU, which is located at the lowest 40 MHz frequency of the first 80 MHz sub-block and the lowest 40 MHz of the second 80 MHz sub-block in the 320 MHz bandwidth.

[0196] Alternatively, when the STA determines based on the resource unit allocation subfield corresponding to the 320 MHz bandwidth that the first 80 MHz sub-block in the 240 MHz bandwidth includes zero 242-tone RUs belonging to the MRU, the second 80 MHz sub-block includes zero 242-tone RUs belonging to the MRU, the third 80 MHz sub-block includes four 242-tone RUs belonging to the MRU, and the fourth 80 MHz sub-block includes two 242-tone RUs belonging to the MRU, the STA determines that the 240 MHz bandwidth includes one 996+484-tone RU. The 996+484-tone RU is located at the lowest 40 MHz frequency of the third 80 MHz sub-block and the fourth 80 MHz sub-block in the 320 MHz bandwidth.

[0197] As specified in next generation communication standards (eg, 802.11be), when a 320 MHz bandwidth can contain 2*996+484-tone RU and 996+484-tone RU, only one composite case is supported.

[0198] In the scenario of mode 13, FIG. 6G is a schematic scenario diagram of the MRU combining case included in 320MHz. When the bandwidth for transmitting PPDU is 320MHz, the 2*996+484-tone RU is located at the lowest 200MHz frequency in the 320MHz bandwidth, and the 996+484-tone RU is located at the highest 160MHz frequency in the 320MHz bandwidth. In the signal field of the PPDU, the resource unit allocation subfields corresponding to the first to sixteenth 242-tone RUs in the 320MHz bandwidth may be indicated by one index in Table 5 to indicate that the corresponding 242-tone RUs belong to the MRU. Thus, a STA receiving a PPDU may determine, based on resource unit allocation subfields 1 to 16 in the signal field and by referring to Table 8, that the first through sixteenth 20 MHz sub-blocks in the 320 MHz bandwidth all correspond to MRUs and that the 320 MHz bandwidth includes one 2*996+484-tone RU and one 996+484-tone RU. However, the STA cannot determine the specific ten 242-tone RUs that belong to the 2*996+484-tone RUs and the specific six 242-tone RUs that belong to the 996+484-tone RUs in the 320 MHz bandwidth based on the resource unit allocation subfields.

[0199] For example, when resource unit allocation subfields 1 to 16 indicate that the first to sixteenth 242-tone RUs in the 320 MHz bandwidth all correspond to MRUs, the first to tenth 242-tone RUs may belong to 2*996+484-tone RUs and the eleventh to sixteenth 242-tone RUs may belong to 996+484-tone RUs, or the first to sixth 242-tone RUs may belong to 996+484-tone RUs and the seventh to sixteenth 242-tone RUs may belong to 2*996+484-tone RUs. In this case, the STA receiving the PPDU cannot accurately determine the RU combining case.

[0200] In the indexing scheme of Table 5, when the 320MHz bandwidth for transmitting the PPDU includes 2*996+484-tone RUs and 996+484-tone RUs, it can be seen that the 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RUs and the 996-tone RUs and the 484-tone RUs forming the 996+484-tone RUs cannot be accurately indicated. In this case, among the STAs receiving the PPDU, the STAs to which the 2*996+484-tone RUs are allocated cannot determine the specific 2*996-tone RUs and the specific 484-tone RUs forming the 2*996+484-tone RUs allocated to the STAs based on the resource unit allocation subfield. Therefore, the AP cannot allocate the 2*996+484-tone RUs or the 996+484-tone RUs to one or more stations.

[0201] In another MRU indication 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 the user-specific fields in the same EHT-SIG content channel as the resource unit allocation subfield. Specifically, the resource unit allocation subfield may be indicated by an index in Table 9. [Table 9A] [Table 9B] [Table 9C]

[0202] Any index in Table 9 indicates the MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, and indicates the number of user fields contributed to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields contributing to a user-specific field 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 in which the resource unit allocation subfield is located. The user field corresponding to the resource unit allocation subfield is the user field of the user to which the resource units indicated by the resource unit allocation subfield are allocated.

[0203] Optionally, any index in Table 9 indicating the number of user fields is 1 to 8 may include an RU allocation indication portion and a user field indication portion. The RU allocation indication portion indicates the MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs. The user field indication 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.

[0204] The user field indication portion may be, for example, 3 bits, and indicates that the number of user fields contributing to the user specific fields in the same EHT-SIG content channel as the resource unit allocation subfield is one from 1 to 8.

[0205] Specifically, any index structure that indicates that the number of user fields in Table 9 is between 1 and 8 has k n k n-1 ...k 2 k 1 y 2 y 1 y 0 k may be n k n-1...k 2 k 1 is the RU allocation indication part, n is the number of bits in the RU allocation indication part, and y 2 y 1 y 0 is a user field indication part, which is 3 bits and indicates 1 to 8 user fields separately.

[0206] In a specific example, 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. 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 indexes in the indexes 19 to 27 of Table 9 to indicate that the corresponding 242-tone RUs belong to the 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 indexes 1 to 9 of Table 9 to indicate that the corresponding 242-tone RUs belong to the 996+484-tone RU.

[0207] Thus, the STA receiving the PPDU may determine that the first through tenth 242-tone RUs in the 320 MHz bandwidth belong to one 2*996+484-tone RU and the eleventh through sixteenth 242-tone RUs belong to one 996+484-tone RU based on the resource unit allocation subfields 1 through 16 in the signal field. It can be seen that such a strategy can accurately indicate the cases where the first through tenth 242-tone RUs belong to one 2*996+484-tone RU and the eleventh through sixteenth 242-tone RUs belong to one 996+484-tone RU when the bandwidth for transmitting the PPDU is 320 MHz.

[0208] In other words, such a measure can accurately indicate that when a 320 MHz bandwidth for transmitting a PPDU includes 2*996-tone RUs and 996+484-tone RUs, the resource unit allocation subfield can accurately indicate 2*996-tone RUs and 484-tone RUs forming the 2*996+484-tone RUs and 996-tone RUs and 484-tone RUs forming the 996+484-tone RUs by indexes in Table 9. In this case, among the STAs receiving the PPDU, the STAs to which the 2*996+484-tone RUs are allocated can determine the specific 2*996-tone RUs and the specific 484-tone RUs forming the 2*996+484-tone RUs allocated to the STA based on the resource unit allocation subfield.

[0209] In another example, when the bandwidth for transmitting PPDUs 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 to be the first to fourth 242-tone RUs in the first 80 MHz sub-block, the fifth to eighth 20 MHz sub-blocks may be understood to be the first to fourth 242-tone RUs in the second 80 MHz sub-block, and the ninth to twelfth 20 MHz sub-blocks may be understood to be the first to fourth 242-tone RUs in the third 80 MHz sub-block.

[0210] The signal field of the PPDU includes resource unit allocation subfields 1 to 12 corresponding to the first to twelfth 242-tone RUs in the 240 MHz bandwidth, respectively, and the resource unit allocation subfields 1 to 12 may be indicated by indexes in Table 8. Thus, a STA receiving the PPDU may determine that the first to twelfth 242-tone RUs in the 240 MHz bandwidth belong to a 996+484-tone RU based on the resource unit allocation subfields 1 to 12 in the signal field. From the above description corresponding to FIG. 6E, it can be seen that there is not a single case where each 996+484-tone RU includes a 242-tone RU. For example, the first through 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 through twelfth 242-tone RUs may belong to one 996+484-tone RU. Alternatively, the first through sixth 242-tone RUs belong to one 996+484-tone RU, and the seventh through twelfth 242-tone RUs belong to one 996+484-tone RU.

[0211] It can be seen that in the approach where the resource unit allocation subfield is indicated by the index in Table 9, when the 240 MHz bandwidth includes two (996+484)-tone RUs, the resource unit allocation subfield cannot indicate the 996-tone RU and the 484-tone RU forming each 996+484-tone RU by the index in Table 9. The STA receiving the PPDU cannot determine the specific 996-tone RU and the specific 484-tone RU forming the 996+484-tone RU in the 240 MHz bandwidth, and therefore cannot allocate one 996+484-tone RU or two (996+484)-tone RUs to one or more stations.

[0212] The embodiments of the present application provide several ways to solve the problem that the resource unit allocation subfield cannot accurately indicate the 2*996+484-tone RUs and 996+484-tone RUs contained in the 320 MHz bandwidth.

[0213] In this approach, 2*996+484-tone RUs are MRUs that include low frequency 2*996-tone RUs and high frequency 484-tone RUs, and MRUs that include low frequency 484-tone RUs and high frequency 2*996-tone RUs. In this approach, 996+484-tone RUs are MRUs that include low frequency 996-tone RUs and high frequency 484-tone RUs, and MRUs that include low frequency 484-tone RUs and high frequency 996-tone RUs.

[0214] In some embodiments, as specified in communication standards (e.g., 802.11be and standards after 802.11be), 2*996+484-tone RUs and 996+484-tone RUs are not allowed 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 in the 320MHz bandwidth. This can solve the problem of not being able to perform accurate indication.

[0215] In some other embodiments, as specified in communication standards (e.g., 802.11be and standards after 802.11be), when a 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, there is only one combination case of 2*996+484-tone RUs and 484-tone RUs forming 2*996+484-tone RUs and 996-tone RUs and 484-tone RUs forming 996+484-tone RUs.

[0216] For example, Figure 7A is a schematic scenario diagram of an MRU combining case included in 240MHz. As specified in the communication standard, when the 320MHz bandwidth includes 2*996+484-tone RU and 996+484-tone RU, the 320MHz bandwidth includes 2*996-tone RU, 484-tone RU, 484-tone RU, and 996-tone RU in ascending order of absolute frequency. That is, the 2*996-tone RU corresponding to the first 80MHz sub-block and the second 80MHz sub-block in the 320MHz bandwidth and the 484-tone RU corresponding to the first 40MHz sub-block of the third 80MHz sub-block form a 2*996+484-tone RU, and the 484-tone RU corresponding to the second 40MHz sub-block of the third 80MHz sub-block and the 996-tone RU corresponding to the fourth 80MHz sub-block form a 996+484-tone RU.

[0217] In another example, Figure 7B is a schematic scenario diagram of an MRU combining case included in 240 MHz. As specified in the communication standard, when the 320 MHz bandwidth includes 2*996-tone+484 RU and 996+484-tone RU, the 320 MHz bandwidth includes, in ascending order of absolute frequency, 996-tone RU, 484-tone RU, 484-tone RU, and 2*996-tone RU. That is, the 996-tone RU corresponding to the first 80 MHz sub-block in the 320 MHz bandwidth and the 484-tone RU corresponding to the first 40 MHz sub-block of the second 80 MHz sub-block forming a 996+484-tone RU form a 996+484-tone RU, and the 484-tone RU corresponding to the second 40 MHz sub-block of the second 80 MHz sub-block and 2*996-tone RUs corresponding to the third and fourth 80 MHz sub-blocks form a 996+484-tone RU.

[0218] Of course, as specified in the communication standard, when the 320MHz bandwidth includes 2*996+484-tone RU and 996+484-tone RU, the 2*996-tone RU and 484-tone RU forming the 2*996+484-tone RU and the 996-tone RU forming the 484-tone RU may have other combination cases. This application does not limit the specific allowed combination cases specified in the communication standard.

[0219] In this way, a STA receiving the PPDU only needs to determine that the 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs to determine the 2*996-tone RUs and 484-tone RUs that form 2*996-tone+484 RUs and the 996-tone RUs and 484-tone RUs that form 996+484-tone RUs based on the resource unit allocation subfield.

[0220] For example, when the resource unit allocation subfield may use an index in Table 5 or an index in Table 9 to indicate that the 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs, the STA can determine that the 320 MHz bandwidth includes 2*996+484-tone RUs and 996+484-tone RUs to determine the 2*996-tone RUs and 484-tone RUs that form the 2*996-tone+484 RUs and the 996-tone RUs and 484-tone RUs that form the 996+484-tone RUs based on the resource unit allocation subfield.

[0221] In this application, the first 80 MHz sub-block, the second 80 MHz sub-block, the third 80 MHz sub-block, and the fourth 80 MHz sub-block are obtained by arranging in ascending frequency order. Similarly, the Xth 20 MHz sub-block, the Yth 40 MHz sub-block, and the Zth 160 MHz sub-block are also obtained by arranging in ascending frequency order, where X, Y, and Z are sequence numbers.

[0222] This embodiment of the present application further provides some indication strategies for indicating the frequency location of a single RU in an MRU. When a 240 MHz bandwidth for transmitting a PPDU includes an MRU that includes a 484-tone RU and a 996-tone RU, a STA receiving the PPDU can accurately determine the specific 484-tone RU and the specific 996-tone RU that form the MRU.

[0223] Specifically, in this embodiment of the present application, the 484-tone RUs and the 996-tone RUs in the 160 MHz sub-block are numbered. For example, FIG. 8A is a schematic diagram of the sequence numbering of resource units according to an embodiment of the present application. The four 484-tone RUs in the 160 MHz sub-block are numbered in ascending absolute frequency order, starting with the first 484-tone RU (1 st 484-tone RU), 2nd 484-tone RU(2 nd 484-tone RU), 3rd 484-tone RU(3 rd 484-tone RU), and a fourth 484-tone RU (4 th The RU numbers of the first to fourth 484-tone RUs in a 160 MHz sub-block are 1, 2, 3, and 4, respectively.

[0224] The two 996-tone RUs in the 160MHz bandwidth are sequentially arranged in ascending frequency order, starting with the first 996-tone RU (1 st 484-tone RU) and a second 996-tone RU (2 ndThe RU numbers of the first and second 996-tone RUs in the 160 MHz sub-block are 1 and 2, respectively.

[0225] Optionally, the 242-tone RUs and the 484-tone RUs in the 80 MHz sub-block may also be numbered. For example, as shown in FIG. 8A, the two 484-tone RUs in the 80 MHz sub-block are numbered sequentially in ascending absolute frequency order, starting with the first 484-tone RU (1 st 484-tone RU) and a second 484-tone RU(2 nd The RU numbers of the first 484-tone RU and the second 484-tone RU in the 80 MHz sub-block are 1 and 2, respectively. The four 242-tone RUs in the 80 MHz sub-block are ordered in ascending absolute frequency order, starting with the first 242-tone RU (1 st 242-tone RU), 2nd 242-tone RU(2 nd 242-tone RU), 3rd 242-tone RU(3 rd 242-tone RU), and a fourth 242-tone RU (4 th The RU numbers of the first to fourth 242-tone RUs in an 80 MHz sub-block are 1, 2, 3, and 4, respectively.

[0226] In a first indication method for indicating the frequency location of a single RU in an MRU provided in this embodiment of the present application, in a signal field of a PPDU, a resource unit allocation subfield indicating an MRU including 484-tone RUs and 996-tone RUs indicates the number of 484-tone RUs and 996-tone RUs that form the MRU in the 160 MHz bandwidth in which the MRU is located, to indicate the frequency location of the 484-tone RUs and 996-tone RUs that form the MRU in the 160 MHz sub-block to which the 996+484-tone RU belongs.

[0227] Based on the above-mentioned first indication method of indicating the frequency location of a single RU in an MRU, an embodiment of the present application further provides a method for determining the frequency locations of 484-tone RUs and 996-tone RUs forming an MRU based on a signal field, in which when a 240 MHz continuous bandwidth for transmitting a PPDU includes an MRU including 484-tone RUs and 996-tone RUs, when obtaining the frequency locations of the 484-tone RUs and 996-tone RUs forming an MRU based on the resource unit allocation subfield in the signal field, the STA receiving the PPDU skips the resource unit allocation indication subfield corresponding to the second 80 MHz subblock in the 240 MHz bandwidth. The STA determines the frequency locations of the 484-tone RUs and 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs based on the number of 484-tone RUs and 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs, which is indicated by the resource unit allocation indication subfield corresponding to the first 80 MHz subblock and / or the third 80 MHz subblock in the 240 MHz bandwidth. The STA determines whether the 160 MHz subblock to which the MRU belongs is the lowest 160 MHz frequency or the highest 160 MHz frequency in the 240 MHz bandwidth in order to determine the specific 484-tone RUs and the specific 996-tone RUs forming the MRU, depending on whether the resource unit allocation subfield indicating the MRU is the resource unit allocation subfield corresponding to the first 80 MHz subblock or the resource unit allocation subfield corresponding to the third 80 MHz subblock.

[0228] Of course, in other embodiments, other numbering schemes may be used, and in this embodiment of the application, the numbering scheme of Figure 8A is used as an illustrative example.

[0229] The following describes in detail the technical solutions provided in the embodiments of the present application with reference to the PPDU transmission method provided in the embodiments of the present application.

[0230] In this embodiment of the present application, an embodiment in which an AP sends a PPDU to a STA is used for description. The method of the present application is also applicable in a scenario in which an AP sends a PPDU to an AP and a scenario in which a STA sends a PPDU to a STA.

[0231] The 996+484-tone RU in this embodiment is an MRU that includes a 996-tone RU with a low frequency and a 484-tone RU with a high frequency. The 484+996-tone RU in the embodiment of the PPDU transmission method of the present application is an MRU that includes a 484-tone RU with a low frequency and a 996-tone RU with a high frequency.

[0232] 8B is a schematic flowchart of a PPDU transmission method. The PPDU transmission method includes the following steps:

[0233] 801. The AP generates the PPDU.

[0234] The bandwidth for transmitting the PPDU includes a contiguous 240 MHz. The 240 MHz bandwidth includes MRUs including 996-tone RUs and 484-tone RUs, and the MRUs are 996+484-tone RUs or 484+996-tone RUs. For ease of explanation, each MRU in this embodiment may be understood as being 996+484-tone RUs or 484+996-tone RUs. Optionally, the bandwidth for transmitting the PPDU is a contiguous 240 MHz.

[0235] The PPDU includes a number of resource unit allocation subfields corresponding to the 240 MHz bandwidth, and includes at least one resource unit allocation subfield corresponding to an MRU, where the resource unit allocation subfield corresponding to an MRU indicates the number of 484-tone RUs and 996-tone RUs that form the MRU within the 160 MHz subblock to which the MRU belongs.

[0236] The resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock is intended to determine or indicate the frequency locations of the 484-tone RUs and 996-tone RUs that form the MRU in the 240 MHz bandwidth.

[0237] Optionally, the PPDU includes a signal field, the signal field including a common field and a user-specific field, the common field including a plurality of resource unit allocation subfields corresponding to the 240 MHz bandwidth, and the user-specific field including a user field.

[0238] Optionally, the resource unit allocation subfield corresponding to the MRU further indicates a 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 a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield.

[0239] The structure of the PPDU may be, but is not limited to, the structure shown in Figure 5C. The signal field may be, for example, but is not limited to, the EHT-SIG in the PPDU shown in Figure 5C.

[0240] 802. The AP transmits a PPDU.

[0241] In response, the STA receives the PPDU.

[0242] 803. The STA determines, based on the resource unit allocation subfield, that the 240 MHz bandwidth includes an MRU that includes a 484-tone RU and a 996-tone RU.

[0243] Specifically, the STA may determine that the 240 MHz bandwidth includes an MRU that includes a 484-tone RU and a 996-tone RU based on a plurality of resource unit allocation subfields corresponding to the 240 MHz bandwidth in the signal field.

[0244] The solution of this embodiment of the present application is applicable to a scenario in which the lowest 160 MHz frequency in a 240 MHz bandwidth includes one MRU including a 996-tone RU and a 484-tone RU, the highest 160 MHz frequency in a 240 MHz bandwidth includes one MRU including a 996-tone RU and a 484-tone RU, and the 240 MHz bandwidth includes two MRUs, each of which includes a 996-tone RU and a 484-tone RU. In a scenario in which a 240 MHz bandwidth includes two MRUs, each of which includes a 996-tone RU and a 484-tone RU, the 484-tone RU and 996-tone RU forming one of the MRUs are at the lowest 160 MHz frequency in the 240 MHz bandwidth, and the 484-tone RU and 996-tone RU forming the other MRU are at the highest 160 MHz frequency in the 240 MHz bandwidth.

[0245] For ease of explanation, in this embodiment of the present application, an MRU including 484-tone RUs and 996-tone RUs in the lowest 160 MHz frequency in a 240 MHz bandwidth is referred to as a low-frequency MRU, and an MRU including 484-tone RUs and 996-tone RUs in the highest 160 MHz frequency in a 240 MHz bandwidth is referred to as a high-frequency MRU.

[0246] In one possible implementation, the 240 MHz bandwidth includes a low-frequency MRU. The STA may determine that the 240 MHz bandwidth includes an MRU that includes a 484-tone RU and a 996-tone RU based on the resource unit allocation subfield corresponding to the first 80 MHz subblock and / or the resource unit allocation subfield corresponding to the second 80 MHz subblock.

[0247] In another possible implementation, the 240 MHz bandwidth includes a high-frequency MRU. The STA may determine that the 240 MHz bandwidth includes an MRU that includes a 484-tone RU and a 996-tone RU based on the resource unit allocation subfield corresponding to the second 80 MHz subblock and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock.

[0248] In yet another possible implementation, the 240 MHz bandwidth includes a low frequency MRU and a high frequency MRU. The STA may determine that the 240 MHz bandwidth includes an MRU that includes a 484-tone RU and a 996-tone RU based on a resource unit allocation subfield that corresponds to any one or more 80 MHz subblocks in the 240 MHz bandwidth.

[0249] 804. The STA obtains the number of 484-tone RUs and 996-tone RUs that form the MRU in the 160 MHz subblock to which the MRU belongs based on the resource unit allocation subfield corresponding to the MRU among the resource unit allocation subfields corresponding to the first 80 MHz subblock and / or the third 80 MHz subblock in the 240 MHz bandwidth.

[0250] It should be understood that the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80 MHz subblock indicates that the 160 MHz subblock to which the MRU belongs is the lowest 160 MHz frequency in the 240 MHz bandwidth, and the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the third 80 MHz subblock indicates that the 160 MHz subblock to which the MRU belongs is the highest 160 MHz frequency in the 240 MHz bandwidth.

[0251] In the present application, the STA acquires the number of 484-tone RUs and 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs, in order to determine the frequency location of the 484-tone RUs and 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs, based on the resource unit allocation subfield corresponding to the first 80 MHz subblock and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock. Furthermore, the STA can determine the location of the 160 MHz subblock to which the MRU belongs in the 240 MHz bandwidth, in order to acquire the frequency location of the MRU in the 240 MHz bandwidth, based on the frequency locations of the 484-tone RUs and 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs, depending on whether the resource unit allocation subfield corresponding to the MRU is the resource unit allocation subfield corresponding to the first 80 MHz subblock or the resource unit allocation subfield corresponding to the third 80 MHz subblock.

[0252] Thus, when determining the frequency locations of the 996-tone RUs and 484-tone RUs forming a 484+996-tone RU or a 996+484-tone RU in the 240 MHz bandwidth, the STA skips the resource unit allocation subfield corresponding to the second 80 MHz subblock. The STA can accurately determine which 484-tone RUs and which 996-tone RUs form a 484+996-tone RU or a 996+484-tone RU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80 MHz subblock and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock. The AP can allocate 484+996-tone RUs and / or 996+484-tone RUs, including 996-tone RUs and 484-tone RUs in the 240 MHz bandwidth, to one or more stations.

[0253] It should be understood that when determining the frequency location of another RU different from the MRU in the 240 MHz bandwidth, the STA does not necessarily skip the resource unit allocation subfield of the second 80 MHz subblock. The STA may determine the frequency location of another RU different from the MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the second 80 MHz subblock.

[0254] For the method by which a STA determines the frequency locations of 484-tone RUs and 996-tone RUs forming an MRU in a 240 MHz bandwidth, the present application lists the following possible embodiments. It should be understood that the method by which a STA determines the frequency locations of 484-tone RUs and 996-tone RUs forming an MRU in a 240 MHz bandwidth is not limited to the following embodiments.

[0255] In some embodiments, the 240 MHz bandwidth includes two MRUs, each MRU including a 484-tone RU and a 996-tone RU, where the 996-tone RU corresponding to the first 80 MHz sub-block and one 484-tone RU in the second 80 MHz sub-block are combined into an MRU, and the 996-tone RU corresponding to the third 80 MHz sub-block and the other 484-tone RU in the second 80 MHz sub-block are combined into an MRU.

[0256] When determining the 484-tone RUs and 996-tone RUs that will form each MRU in the 240 MHz bandwidth based on the resource unit allocation subfields, the STA skips the resource unit allocation subfield corresponding to the second 80 MHz subblock and determines the 484-tone RUs and 996-tone RUs that will form each MRU based on the resource unit allocation subfields corresponding to the first 80 MHz subblock and the second 80 MHz subblock.

[0257] Specifically, the two MRUs include a low-frequency MRU and a high-frequency MRU, where the MRU indicated by the resource unit allocation subfield corresponding to the first 80 MHz subblock is the low-frequency MRU, and the MRU indicated by the resource unit allocation subfield corresponding to the second 80 MHz subblock is the high-frequency MRU.

[0258] The STA may determine the frequency locations of the 484-tone RU and 996-tone RU forming the low-frequency MRU in the 160 MHz subblock to which the low-frequency MRU belongs based on the resource unit allocation subfield corresponding to the first 80 MHz subblock, and may determine that the 160 MHz subblock to which the low-frequency MRU belongs is the lowest 160 MHz subblock in the 240 MHz bandwidth. Thus, the STA can determine the frequency locations of the 484-tone RU and 996-tone RU forming the low-frequency MRU in the lowest 160 MHz frequency in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80 MHz subblock, and therefore can determine the frequency locations of the 484-tone RU and 996-tone RU forming the low-frequency MRU in the 240 MHz bandwidth.

[0259] The STA may determine the frequency locations of the 484-tone RU and 996-tone RU forming the high-frequency MRU in the 160 MHz subblock to which the high-frequency MRU belongs based on the resource unit allocation subfield corresponding to the third 80 MHz subblock, and determine that the 160 MHz subblock to which the high-frequency MRU belongs is the highest 160 MHz frequency in the 240 MHz bandwidth. Thus, the STA can determine the frequency locations of the 484-tone RU and 996-tone RU forming the high-frequency MRU in the highest 160 MHz frequency in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the third 80 MHz subblock, and therefore can determine the frequency locations of the 484-tone RU and 996-tone RU forming the high-frequency MRU in the 240 MHz bandwidth.

[0260] In the technical solution of this embodiment, it can be seen that when a 240 MHz bandwidth includes two MRUs, and each MRU includes a 484-tone RU and a 996-tone RU, a STA can accurately determine the frequency locations of the 484-tone RU and the 996-tone RU forming each MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80 MHz subblock and the resource unit allocation subfield corresponding to the third 80 MHz subblock.

[0261] For example, Figure 8C is a schematic scenario diagram of an MRU combining case included in 240 MHz. In the four resource unit allocation subfields corresponding to the first 80 MHz subblock, the resource unit allocation subfield corresponding to the MRU indicates that the number of 484-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs is 3, and the number of 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs is 1. In the resource unit allocation subfield corresponding to the third 80 MHz subblock, the resource unit allocation subfield corresponding to the MRU indicates that the number of 484-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs is 2, and the number of 996-tone RUs forming the MRU in the 160 MHz subblock to which the MRU belongs is 2.

[0262] The MRU indicated by the resource unit allocation subfield corresponding to the first 80 MHz subblock is a low frequency MRU, and the 160 MHz subblock 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 subblock is a high frequency MRU, and the 160 MHz subblock to which the MRU belongs is the highest 160 MHz frequency in the 240 MHz bandwidth.

[0263] Thus, based on the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the first 80 MHz subblock, the STA can determine that the 996-tone RU forming the MRU is the first 996-tone RU in the lowest 160 MHz frequency in the 240 MHz bandwidth and that the 484-tone RU forming the MRU is the third 484-tone RU in the lowest 160 MHz frequency in the 240 MHz bandwidth to determine the locations of the 484-tone RU and 996-tone RU forming the MRU in the 240 MHz bandwidth. To determine the positions of the 484-tone RU and 996-tone RU forming the MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the MRU in the resource unit allocation subfield corresponding to the third 80 MHz subblock, the STA can determine that the 996-tone RU forming the MRU is the second 996-tone RU in the highest 160 MHz frequency in the 240 MHz bandwidth and that the 484-tone RU forming the MRU is the second 484-tone RU in the highest 160 MHz frequency in the 240 MHz bandwidth.

[0264] In some other embodiments, the 240 MHz bandwidth includes an MRU including a 484-tone RU and a 996-tone RU, and the STA can also determine the location of the 160 MHz subblock to which the MRU belongs in the 160 MHz subblock based on the resource unit allocation subfield corresponding to the first 80 MHz subblock or the resource unit allocation subfield corresponding to the third 80 MHz subblock, and determine the 484-tone RU and 996-tone RU that form the MRU in the 160 MHz subblock to which the MRU belongs based on the resource unit allocation subfield corresponding to the MRU to determine the location of the 484-tone RU and 996-tone RU that form the MRU in the 240 MHz bandwidth.

[0265] For a specific implementation logic for the STA to determine the positions of the 484-tone RU and the 996-tone RU forming the MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the first 80 MHz subblock or the resource unit allocation subfield corresponding to the third 80 MHz subblock, refer to the above-mentioned method for the STA to determine the 484-tone RU and the 996-tone RU forming any one of the MRUs in an embodiment in which the 240 MHz bandwidth includes two MRUs, each of which includes a 484-tone RU and a 996-tone RU. Details will not be described again here.

[0266] Optionally, in a first indication method for indicating the frequency location of a single RU in an MRU provided in an embodiment of the present application, in a signal field of a PPDU, a resource unit allocation subfield indicating a 484+242-tone RU or a 242+484-tone RU may indicate the number of 484-tone RUs and 242-tone RUs that form the 484+242-tone RU or 242+484-tone RU in the 80 MHz sub-block to which the 484+242-tone RU belongs. In the signal field of the PPDU, the resource unit allocation subfield indicating 2*996+484-tone RU or 484+2*996-tone RU may indicate the number of 2*996-tone RUs and 484-tone RUs that form the 2*996+484-tone RU or 484+2*996-tone RU in the 240 MHz bandwidth in which the 484+242-tone RU is located.

[0267] It should be understood that in this embodiment of the present application, when determining the number of user fields corresponding to the MRUs including 484-tone RUs and 996-tone RUs, the STA may or may not use the resource unit allocation subfield corresponding to the MRU among one or more resource unit allocation subfields corresponding to the second 80 MHz subblock as a basis for determining the number of user fields corresponding to the MRU. In other words, the resource unit allocation subfield corresponding to the MRU among the resource unit allocation subfields corresponding to the second 80 MHz subblock may or may not be for determining the number of user fields corresponding to the MRU. When the resource unit allocation subfield corresponding to the MRU among the resource unit allocation subfields corresponding to the second 80 MHz subblock is for determining the number of user fields corresponding to the MRU, the indicated number of user fields corresponding to the MRU may be 0. Alternatively, the number of user fields may not be indicated.

[0268] The following describes, with reference to a specific example, a method in which a STA determines which 996-tone RUs and 484-tone RUs form an MRU, and determines the number of user fields corresponding to the MRU.

[0269] Specifically, the resource unit allocation subfield may be indicated by an index in Table 10. The resource unit allocation subfield indicating MRU indicates the specific MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, indicates the RU number of the RU corresponding to the MRU in a certain partition of the contiguous frequency range, and 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. For the RU numbering rule, please refer to the related description corresponding to FIG. 8A. [Table 10A] [Table 10B] [Table 10C] [Table 10D]

[0270] Any index in Table 10 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, indicates the RU number of RUs forming the MRU in a certain partition of contiguous frequencies to which the MRU belongs, and indicates the number of user fields that contribute to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields that contribute to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields that correspond to the resource unit allocation subfield in the EHT-SIG content channel in which the resource unit allocation subfield is located. The user field that corresponds to the resource unit allocation subfield is the user field of the user to which the resource units indicated by the resource unit allocation subfield are allocated.

[0271] Optionally, any index in Table 10 indicating the number of user fields is 1 to 8 may include an RU allocation indication portion and a user field indication portion. The RU allocation indication portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, and indicates the number of RUs that form the MRU in a certain partition of the contiguous frequency to which the MRU belongs. The user field indication 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.

[0272] Specifically, any index structure in Table 10 indicating that the number of user fields is 1 to 8 has k n kn-1 ...k 2 k 1 y 2 y 1 y 0 k may be n k n-1 ...k 2 k 1 is the RU allocation indication part, n is the number of bits in the RU allocation indication part, and y 2 y 1 y 0 is a user field indication part, which is 3 bits and indicates 1 to 8 user fields separately.

[0273] For the number of user fields indicated by each index in Table 10, please refer to the contents corresponding to each index in Table 10. The following specifically describes the meaning of the MRU synthesis cases indicated by the indexes in Table 10.

[0274] The values ​​in parentheses in Table 10 may be understood to be the number of RUs that corresponds to the RU indicated by the value preceding the parentheses.

[0275] Indexes 1 to 9 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 242+484-tone RU, the number of 242-tone RUs forming the 242+484-tone RU in the 242+484-tone RU is 1, and the number of 484-tone RUs forming the 242+484-tone RU in the 242+484-tone RU is 2. Based on indexes 1 to 9 in Table 10, the STA can determine that the 242+484-tone RU is obtained by combining the first 242-tone RU in the 80 MHz subblock and the second 484-tone RU in the 80 MHz subblock.

[0276] Indexes 10 to 18 in Table 10 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 242+484-tone RU, the number of 242-tone RUs forming the 242+484-tone RU in the 242+484-tone RU is 2, and the number of 484-tone RUs forming the 242+484-tone RU in the 242+484-tone RU is 2. Based on indexes 10 to 18 in Table 10, the STA can determine that the 242+484-tone RU is obtained by combining the second 242-tone RU in the 80 MHz subblock to which the 242+484-tone RU belongs and the second 484-tone RU in the 80 MHz subblock.

[0277] Indexes 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, the number of 484-tone RUs forming the 484+242-tone RU in the 484+242-tone RU is 1, and the number of 242-tone RUs forming the 484+242-tone RU in the 484+242-tone RU is 4. Based on indexes 19 to 27 in Table 10, the STA can determine that the 484+242-tone RU is obtained by combining the first 484-tone RU in the 80 MHz subblock to which the 484+242-tone RU belongs and the fourth 242-tone RU in the 80 MHz subblock.

[0278] Indexes 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, the number of 484-tone RUs forming the 484+242-tone RU in the 484+242-tone RU is 1, and the number of 242-tone RUs forming the 484+242-tone RU in the 484+242-tone RU is 3. Based on indexes 28 to 36 in Table 10, the STA can determine that the 484+242-tone RU is obtained by combining the first 484-tone RU in the 80 MHz subblock to which the 484+242-tone RU belongs and the third 242-tone RU in the 80 MHz subblock.

[0279] Indexes 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, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 1, and the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2. Based on indexes 37 to 45 in Table 10, the STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the 160 MHz subblock to which the 484+996-tone RU belongs and the second 996-tone RU in the 160 MHz subblock.

[0280] Indexes 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, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, and the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2. Based on indexes 46 to 54 in Table 10, the STA can determine that the 484+996-tone RU is obtained by combining the second 484-tone RU in the 160 MHz subblock to which the 484+996-tone RU belongs and the second 996-tone RU in the 160 MHz subblock.

[0281] Indexes 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, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, and the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 4. Based on indexes 55 to 63 in Table 10, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs and the fourth 484-tone RU in the 160 MHz subblock.

[0282] Indexes 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, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, and the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 3. Based on indexes 64 to 72 in Table 10, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock.

[0283] When the resource unit allocation subfield indicating a 484+242-tone RU or 242+484-tone RU is indicated by the index in Table 10, the RU identifiers of the 484-tone RUs and 242-tone RUs that form the 484+242-tone RU or 242+484-tone RU in the 80 MHz sub-block to which the 484+242-tone RU or 242+484-tone RU belongs can be accurately indicated, and therefore the absolute positions of the 484-tone RUs and 242-tone RUs that form the 484+242-tone RU or 242+484-tone RU in the 80 MHz sub-block 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 an index in Table 10, the RU identifiers of the 996-tone RU and 484-tone RU that form the 996+484-tone RU or 484+996-tone RU in the 160 MHz sub-block to which the 996+484-tone RU or 484+996-tone RU belongs can be accurately indicated, and therefore the absolute positions of the 996-tone RU and 484-tone RU that form the 996+484-tone RU or 484+996-tone RU in the 160 MHz sub-block to which the 996+484-tone RU or 484+996-tone RU belongs can be indicated.

[0284] In some embodiments, the resource unit allocation subfield corresponding to the 240 MHz bandwidth in the signal field of the PPDU includes resource unit allocation subfields corresponding to a first 80 MHz sub-block, a second 80 MHz sub-block, and a third 80 MHz sub-block in the 240 MHz bandwidth.

[0285] In such an embodiment, the STA receiving the PPDU determines, based on the resource unit allocation subfield corresponding to the first 80 MHz subblock and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock in the 240 MHz bandwidth, that the 240 MHz bandwidth includes an MRU formed by combining 996-tone RUs and 484-tone RUs, and the frequency locations of the 996-tone RUs and 484-tone RUs that form the MRU in the 240 MHz bandwidth.

[0286] There are at least two possible implementations in which the STA determines the number of user fields that correspond to the MRU:

[0287] 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 80 MHz subblock, the second 80 MHz subblock, and the third 80 MHz subblock in the 240 MHz bandwidth. In such an implementation, it can be understood that the resource unit allocation subfield corresponding to the second 80 MHz subblock corresponding to the 240 MHz bandwidth is involved in indicating the number of user fields corresponding to the MRU.

[0288] 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 frequency order, a 996-tone RU corresponding to the first 80 MHz sub-block in the 240 MHz bandwidth and a 484-tone RU corresponding to the first 40 MHz sub-block of the second 80 MHz sub-block form a 996+484-tone RU. The 996+484-tone RU is allocated to four users.

[0289] The 484-tone RU corresponding to the second 40 MHz sub-block of the second 80 MHz sub-block in the 240 MHz bandwidth and the 996-tone RU corresponding to the third 80 MHz sub-block form another 996+484-tone RU. The 484+996 RUs are allocated to three users.

[0290] The first 80 MHz sub-block may be understood to be the first through fourth 20 MHz sub-blocks, the second 80 MHz sub-block may be understood to be the fifth through eighth 20 MHz sub-blocks, and the third 80 MHz sub-block may be understood to be the ninth through twelfth 20 MHz sub-blocks.

[0291] 9B is a schematic diagram of the structure of a signal field. The signal field is a schematic scenario diagram of a resource unit allocation situation of a 240 MHz bandwidth. The signal field of the PPDU includes resource unit allocation subfield 1 to resource unit allocation subfield 6 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth, and resource unit allocation subfield 7 to resource unit allocation subfield 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth.

[0292] The PPDU is transmitted in two content channels, which may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted in content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted in content channel 2.

[0293] Resource unit allocation subfield 1 may be indicated by index 66 in Table 10 to indicate that the first 242-tone RU in the 240 MHz bandwidth belongs to the 996+484-tone RU which includes a 996-tone RU and a 484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that the two user fields contribute to the user-specific fields of the same EHT-SIG content channel (content channel 1) as the resource unit allocation subfield.

[0294] The resource unit allocation subfield 2 may be indicated by index 66 in Table 10 to indicate that the second 242-tone RU in the 240 MHz 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 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that the two user fields contribute to the user-specific fields of the same EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0295] Resource unit allocation subfields 3 to 6 may be indicated by index 64 in Table 10 to indicate that the corresponding 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 in the 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that 0 user fields contribute to the user-specific fields of the same EHT-SIG content channel as the resource unit allocation subfield.

[0296] Resource unit allocation subfield 7 may be indicated by index 48 in Table 10 to indicate that the third 242-tone RU of the second 80 MHz subblock in the 240 MHz 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 160 MHz subblock to which the 484+996-tone RU belongs, and that the two user fields contribute to the user-specific fields of the same EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0297] Resource unit allocation subfield 8 may be indicated by index 47 in Table 10 to indicate that the fourth 242-tone RU of the second 80 MHz subblock in the 240 MHz 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 160 MHz 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.

[0298] Resource unit allocation subfields 9 through 12 may be indicated by index 46 in Table 10 to indicate that the fourth 242-tone RU of the third 80 MHz subblock in the 240 MHz 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 160 MHz subblock to which the 484+996-tone RU belongs, and that 0 user fields contribute to the user-specific fields of the same EHT-SIG signal content channel as the resource unit allocation subfields.

[0299] In FIG. 9B , the arrows indicated by resource unit allocation subfield 5 and resource unit allocation subfield 6 are dashed arrows, which indicates that resource unit allocation subfield 5 and resource unit allocation subfield 6 cannot accurately indicate that the fifth and sixth 242-tone RUs in the 240 MHz bandwidth and corresponding to resource unit allocation subfield 5 and resource unit allocation subfield 6 belong to the same MRU as the fourth 242-tone RU of the first 80 MHz sub-block on the left side of the 240 MHz bandwidth, but still belong to the same MRU as the fourth 242-tone RU of the third 80 MHz sub-block on the right side of the 240 MHz bandwidth. The arrows indicated by resource unit allocation subfield 7 and resource unit allocation subfield 8 are dashed arrows, which indicates that resource unit allocation subfield 7 and resource unit allocation subfield 8 cannot accurately indicate that the seventh and eighth 242-tone RUs corresponding to resource unit allocation subfield 7 and resource unit allocation subfield 8 belong to the same MRU as the four 242-tone RUs of the first 80 MHz sub-block on the left side of the 240 MHz bandwidth, and yet belong to the same MRU as the four 242-tone RUs of the third 80 MHz sub-block on the right side of the 240 MHz bandwidth.

[0300] Specifically, the STA determines that the four 242-tone RUs of the first 80 MHz subblock in the 240 MHz 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 160 MHz subblock to which the 996+484-tone RU belongs, based on the resource unit allocation subfields 1 to 4 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth. The 160 MHz subblock to which the 996+484-tone RU belongs is the lowest 160 MHz frequency in the 240 MHz bandwidth. In this case, the STA may determine that the 996+484-tone RU includes the 996-tone RU corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and the 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz subblock.

[0301] The STA determines that the number of user fields corresponding to the 996+484-tone RU is 4 based on the sum of the number of user fields indicated by resource unit allocation subfields 1 through 6.

[0302] The STA may further determine that the four 242-tone RUs of the third 80 MHz subblock in the 240 MHz bandwidth belong to the 484+996-tone RU, and that the 484+996-tone RU includes a second 484-tone RU and a second 996-tone RU in the 160 MHz subblock to which the 484+996-tone RU belongs, based on the resource unit allocation subfields 9 to 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth. The 160 MHz subblock to which the 484+996-tone RU belongs is a high-frequency 160 MHz subblock in the 240 MHz bandwidth. In this case, the STA may determine that the 484+996-tone RU includes a 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz subblock in the 240 MHz bandwidth and a 996-tone RU corresponding to the third 80 MHz subblock.

[0303] The STA determines that the number of user fields corresponding to the 484+996-tone RU is 3 based on the sum of the number of user fields indicated by resource unit allocation subfields 7 through 12.

[0304] In another possible implementation, the STA may determine the number of user fields corresponding to the MRU formed by combining the 996-tone RU and the 484-tone RU based on the resource unit allocation subfields corresponding to the first and third 80 MHz subblocks in the 240 MHz bandwidth. In such an implementation, it can be seen that the resource unit allocation subfield corresponding to the second 80 MHz subblock corresponding to the 240 MHz bandwidth is involved in indicating the number of user fields.

[0305] For example, Figure 9C is a schematic diagram of the structure of a signal field. Based on the resource unit allocation example of Figure 9A, the signal field of the PPDU includes resource unit allocation subfields 1 to 4 corresponding to four 242-tone RUs of a first 80 MHz subblock in a 240 MHz bandwidth, resource unit allocation subfields 5 to 8 corresponding to four 242-tone RUs of a second 80 MHz subblock in a 240 MHz bandwidth, and resource unit allocation subfields 9 to 12 corresponding to four 242-tone RUs of a third 80 MHz subblock in a 240 MHz bandwidth.

[0306] A PPDU is transmitted in two content channels, which may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted in content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted in content channel 2.

[0307] For the scheme for indicating resource unit allocation subfields 1 to 6 and the scheme for indicating resource unit allocation subfields 9 to 12, please refer to the scheme for indicating resource unit allocation subfields 1 to 6 and the scheme for indicating resource unit allocation subfields 9 to 12 in the example corresponding to Figure 9B.

[0308] Resource unit allocation subfields 7 and 8 may be indicated by index 46 in Table 10 to indicate that the seventh 242-tone RU and the eighth 242-tone RU in the 240 MHz bandwidth belong to the 484+996-tone RU, that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160 MHz sub-block to which the 484+996-tone RU belongs, and that the zero user field contributes to the user-specific field of the same EHT-SIG signal content channel as the resource unit allocation subfields.

[0309] The arrows indicated by the resource unit allocation subfields 5 to 8 are dashed arrows. For the meaning of the dashed arrows, please refer to the above related description of Figure 9B. The details will not be described again here.

[0310] Thus, when determining the 996-tone RUs and 484-tone RUs that will form an MRU, the STA skips resource unit allocation subfields 5 to 8 corresponding to the second 80 MHz subblock in the 240 MHz bandwidth, and determines the frequency locations of the 996-tone RUs and 484-tone RUs that will form the MRU in the 240 MHz bandwidth and 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 80 MHz subblock and the third 80 MHz subblock in the 240 MHz bandwidth.

[0311] Specifically, based on the resource unit allocation subfields 1 to 4 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth, the STA determines that the four 242-tone RUs of the first 80 MHz subblock in the 240 MHz bandwidth belong to the 996+484-tone RUs, that the 996+484-tone RUs include a 996-tone RU corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and a 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz subblock, and that the number of user fields corresponding to the 996+484-tone RUs is four.

[0312] The STA further determines, based on the resource unit allocation subfields 9 to 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth, that the four 242-tone RUs in the third 80 MHz subblock in the 240 MHz bandwidth belong to the 484+996-tone RU, that the 484+996-tone RU includes a 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz subblock in the 240 MHz bandwidth and a 996-tone RU corresponding to the third 80 MHz subblock, and that the number of users corresponding to the 484+996-tone RU is three.

[0313] For the manner in which the STA determines the 996-tone RU and the 484-tone RU that form the 996+484-tone RU, and the manner in which the STA determines the 996-tone RU and the 484-tone RU that form the 484+996-tone RU, please refer to the relevant description of the above example in Figure 9B. The details will not be described again here.

[0314] In some possible embodiments, the resource unit allocation subfield corresponding to the 240 MHz bandwidth in the signal field of the PPDU includes resource unit allocation subfields corresponding to a first 80 MHz sub-block and a third 80 MHz sub-block in the 240 MHz bandwidth, and does not include a resource unit allocation subfield corresponding to a second 80 MHz sub-block in the 240 MHz bandwidth.

[0315] In such an embodiment, the STA receiving the PPDU determines, based on the resource unit allocation subfields of the first 80 MHz sub-block and the third 80 MHz sub-block in the 240 MHz bandwidth, that the 240 MHz bandwidth includes two MRUs, the frequency locations of the 996-tone RUs and 484-tone RUs that form each MRU in the 240 MHz bandwidth, and the number of user fields that correspond to each MRU.

[0316] 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 first to sixth 242-tone RUs belong to one 996+484-tone RU, and the 996+484-tone RU is allocated to four users. The seventh to twelfth 20 MHz sub-blocks correspond to one 484+996-tone RU, and the 484+996 RU is allocated to three users. The first to fourth 20 MHz sub-blocks may be understood as the first 80 MHz sub-blocks, the fifth to eighth 20 MHz sub-blocks may be understood as the second 80 MHz sub-blocks, and the ninth to twelfth 20 MHz sub-blocks may be understood as the third 80 MHz sub-blocks.

[0317] 9D is a schematic diagram of the structure of a signal field. The signal field of the PPDU includes resource unit allocation subfield 1 to resource unit allocation subfield 4 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth, and resource unit allocation subfield 9 to resource unit allocation subfield 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth.

[0318] The PPDU is transmitted in two content channels, which may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 9, and 11 may be transmitted in content channel 1, and resource unit allocation subfields 2, 4, 10, and 12 may be transmitted in content channel 2.

[0319] The resource unit allocation subfields 1 to 4 and the resource unit allocation subfields 9 to 12 may be indicated by indexes 46 to 54 in Table 10. For specific ways of indicating the resource unit allocation subfields 1 to 4 and the resource unit allocation subfields 9 to 12, please refer to the relevant description of the example corresponding to Figure 9C. The details will not be described again here.

[0320] Thus, the STA may determine, based on any one of resource unit allocation subfield 1 to resource unit allocation subfield 4, that the 996-tone RU corresponding to the first 80 MHz subblock of the lowest 160 MHz frequency in the 240 MHz bandwidth belongs to one 996+484-tone RU, and that the first 996-tone RU and the third 484-tone RU of the lowest 160 MHz frequency in the 240 MHz 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 the 996+484-tone RU is two. 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 the 996+484-tone RU is two. That is, the number of user fields corresponding to 996+484-tone RU is 4.

[0321] Similarly, the STA may determine, based on resource unit allocation subfields 9 to 12, that the 996-tone RU corresponding to the third 80 MHz sub-block in the 240 MHz bandwidth belongs to one 484+996-tone RU, and the 484+996-tone RU is formed by combining the second 484-tone RU at the lowest 160 MHz frequency in the 240 MHz bandwidth and the second 996-tone RU at the lowest 160 MHz frequency in the 240 MHz bandwidth. The STA may further determine, based on resource unit allocation subfields 9 to 12, that the number of user fields corresponding to the 484+996-tone RU is three.

[0322] Optionally, the signal field may include a resource unit allocation subfield indication field, indicating that the signal field does not include a resource unit allocation subfield corresponding to a second 80 MHz sub-block in the 240 MHz bandwidth.

[0323] Before performing step 804, the station first determines, based on the resource unit allocation subfield indication field, that the signal field does not include a resource unit allocation subfield corresponding to the second 80 MHz subblock in the 240 MHz bandwidth.

[0324] Thus, the STA can determine, based on the resource unit allocation subfield indication field, that the resource unit allocation subfield corresponding to the 240 MHz bandwidth includes a resource unit allocation subfield corresponding to a first 80 MHz subblock in the 240 MHz bandwidth and a resource unit allocation subfield corresponding to a third 80 MHz subblock corresponding to the 240 MHz bandwidth, and that the resource unit allocation subfield not corresponding to the 240 MHz bandwidth includes a resource unit allocation subfield corresponding to a second 80 MHz subblock in the 240 MHz bandwidth. The STA determines the frequency locations of the 996-tone RU and the 484-tone RU forming the MRU in the 240 MHz bandwidth and determines the user field corresponding to the MRU, based on the resource unit allocation subfield corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and / or the resource unit allocation subfield corresponding to the third 80 MHz subblock corresponding to the 240 MHz bandwidth.

[0325] In such an approach, step 803 may be omitted.

[0326] The resource unit allocation subfield indication field may be a bitmap, where 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 include resource unit allocation subfields corresponding to four 242-tone RUs of the second 80 MHz subblock in the 240 MHz bandwidth.

[0327] For example, based on the example shown in FIG. 9A, the bitmap may be 12 bits. Each bit corresponds to one 242 tone-RU. Each bit indicates whether the signal field includes a resource unit allocation subfield corresponding to the 242-tone RU corresponding to the bit. The bitmap may specifically be 111100001111, where "1" indicates that the frequency domain resource of one granularity corresponds to the resource unit allocation subfield, and "0" indicates that the frequency domain resource of one granularity does not correspond to the resource unit allocation subfield. Of course, in another embodiment, "0" may alternatively indicate that the frequency domain resource of one granularity corresponds to the resource unit allocation subfield, and "1" indicates that the frequency domain resource of one granularity does not correspond to the resource unit allocation subfield.

[0328] In a second indication method for indicating the frequency location of a single RU in an MRU provided in this embodiment of the present application, the 484-tone RUs and 996-tone RUs in the 160 MHz sub-block to which the 996+484-tone RU belongs are numbered by using the method shown in Figure 8A. In this method, the resource unit allocation subfield of the second 80 MHz sub-block in the 240 MHz bandwidth indicates the RU numbers of the 484-tone RUs and 996-tone RUs forming the 996+484-tone RU in the 160 MHz sub-block to indicate the frequency locations of the 484-tone RUs and 996-tone RUs forming the 996+484-tone RU in the 240 MHz bandwidth, and indicates the frequency location of the 160 MHz sub-block in the 240 MHz bandwidth.

[0329] Based on the above second indication method of indicating the frequency location of a single RU in an MRU, an embodiment of the present application further provides another method for determining the frequency locations of 484-tone RUs and 996-tone RUs forming an MRU based on a signal field. In this method, when the continuous 240 MHz in the bandwidth for transmitting a PPDU includes an MRU including a 484-tone RU and a 996-tone RU, the STA receiving the PPDU obtains the frequency locations of the 484-tone RUs and 996-tone RUs forming an MRU based on the resource unit allocation subfield corresponding to the second 80 MHz subblock in the 240 MHz bandwidth in the signal field.

[0330] The above mentioned solution will be described in detail below with reference to a PPDU transmission method provided in another embodiment of the present application.

[0331] The 996+484-tone RU in this embodiment is an MRU that includes a 996-tone RU with a low frequency and a 484-tone RU with a high frequency. The 484+996-tone RU in the embodiment of the PPDU transmission method in this application is an MRU that includes a 484-tone RU with a low frequency and a 996-tone RU with a high frequency.

[0332] As shown in the schematic flowchart of FIG. 10, a PPDU transmission method provided in another embodiment of the present application may include the following steps.

[0333] 1001. The AP generates a PPDU.

[0334] The bandwidth for transmitting the PPDU is 240 MHz, and the 240 MHz bandwidth includes an MRU including a 996-tone RU and a 484-tone RU, and the MRU is a 996+484-tone RU or a 484+996-tone RU. For ease of explanation, each MRU in this embodiment may be understood as being a 996+484-tone RU or a 484+996-tone RU.

[0335] The PPDU includes a plurality of resource unit allocation subfields corresponding to a 240 MHz bandwidth, and the plurality of resource unit allocation subfields corresponding to a second 80 MHz subblock in the 240 MHz bandwidth includes at least one resource unit allocation subfield corresponding to an MRU to indicate an MRU (996+484-tone RU or 484+996-tone RU) and to indicate the frequency location of the 996-tone RU and the 484-tone RU forming the MRU in the 240 MHz bandwidth.

[0336] For example, in one or more resource unit allocation subfields corresponding to a second 80 MHz subblock in a 240 MHz bandwidth, the resource unit allocation subfield corresponding to an MRU indicates a 996+484-tone RU, indicates the RU identifiers of the 996-tone RU and 484-tone RU forming the 996+484-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs, and indicates whether the 160 MHz subblock is a low frequency 160 MHz or a high frequency 160 MHz in the 240 MHz bandwidth. The low frequency 160 MHz may be understood as the 160 MHz on the left side in the 240 MHz bandwidth, and the high frequency 160 MHz may be understood as the 160 MHz on the right side in the 240 MHz bandwidth. Thus, the resource unit allocation subfield corresponding to an MRU can indirectly indicate the frequency locations of the 996-tone RU and 484-tone RU forming the MRU in the 240 MHz bandwidth.

[0337] It can be understood that the 240 MHz bandwidth may include one MRU including a 996-tone RU and a 484-tone RU.

[0338] The 240 MHz bandwidth may alternatively include two MRUs, each including a 996-tone RU and a 484-tone RU. In this case, the 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz sub-block in the 240 MHz bandwidth and the 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz sub-block in the 240 MHz 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.

[0339] Optionally, the PPDU includes a signal field, the signal field including a common field and a user-specific field, the common field including a plurality of resource unit allocation subfields corresponding to the 240 MHz bandwidth, and the user-specific field including a user field.

[0340] Optionally, the resource unit allocation subfield corresponding to the MRU further indicates a 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 a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield.

[0341] 1002. The AP transmits a PPDU.

[0342] In response, the STA receives the PPDU.

[0343] 1003. The STA determines frequency locations of the 996-tone RU and the 484-tone RU that form the MRU in the 240 MHz bandwidth based on the resource unit allocation subfield corresponding to the second 80 MHz subblock in the 240 MHz bandwidth.

[0344] Thus, when the 240 MHz bandwidth for transmitting the PPDU includes an MRU including a 996-tone RU and a 484-tone RU, the resource unit allocation subfields corresponding to the second 80 MHz subblock in the 240 MHz bandwidth include at least one resource unit allocation subfield corresponding to the MRU to indicate the frequency locations of the 996-tone RU and the 484-tone RU forming the MRU in the 240 MHz bandwidth. Thus, the STA receiving the PPDU can determine the frequency locations in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each MRU included in the 240 MHz bandwidth based on the resource unit allocation subfields corresponding to the second 80 MHz subblock, in order to determine the specific 484-tone RU and the specific 996-tone RU forming the MRU in the 240 MHz bandwidth. An AP can allocate 484+996-tone RUs and / or 996+484-tone RUs, including 996-tone RUs and 484-tone RUs, in a 240 MHz bandwidth to one or more stations.

[0345] In this embodiment, the signal field may include a resource unit allocation subfield corresponding to a first 80 MHz sub-block in the 240 MHz bandwidth and a resource unit allocation subfield corresponding to a third 80 MHz sub-block in the 240 MHz bandwidth, or may not include a resource unit allocation subfield corresponding to a first 80 MHz sub-block in the 240 MHz bandwidth and / or a resource unit allocation subfield corresponding to a third 80 MHz sub-block in the 240 MHz bandwidth.

[0346] In an optional embodiment, the signal field includes a resource unit allocation subfield corresponding to at least one of the first 80 MHz subblock and the third 80 MHz subblock, and the STA may first determine, based on the resource unit allocation subfield in the signal field, that the 240 MHz bandwidth includes an MRU including a 996-tone RU and a 484-tone RU, and then perform step 1003.

[0347] In another optional embodiment, the signal field does not include a resource unit allocation subfield corresponding to a first 80 MHz subblock in the 240 MHz bandwidth and a resource unit allocation subfield 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 including 996-tone RUs and 484-tone RUs. The STA may directly determine the frequency locations 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 subfield corresponding to the second 80 MHz subblock in the 240 MHz bandwidth.

[0348] Specifically, when a contiguous bandwidth of 240 MHz for transmitting a PPDU includes an MRU including a 996-tone RU and a 484-tone RU, in one or more resource unit allocation subfields corresponding to the second 80 MHz subblock in the 240 MHz bandwidth, the resource unit allocation subfield corresponding to the MRU may be indicated by an index in Table 11. The resource unit allocation subfields corresponding to the first 80 MHz subblock and the third 80 MHz subblock in the 240 MHz bandwidth may be indicated by an index in Table 11, or may be indicated by other indexes, for example, by an index in Table 9 or Table 10. The manner of the indication resource unit allocation subfield corresponding to the first 80 MHz subblock and the third 80 MHz subblock in the 240 MHz bandwidth is not limited in this embodiment. [Table 11A] [Table 11B] [Table 11C] [Table 11D]

[0349] Any index in Table 11 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, indicates the RU number of the RUs forming the MRU in a certain partition of contiguous frequencies to which the MRU belongs and the frequency location of that partition of contiguous frequencies in the 240 MHz bandwidth, and indicates the number of user fields that contribute to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield. The number of user fields that contribute to a user-specific field in the same EHT-SIG content channel as the resource unit allocation subfield is the number of user fields that correspond to the resource unit allocation subfield in the EHT-SIG content channel in which the resource unit allocation subfield is located. The user field that corresponds to the resource unit allocation subfield is the user field of the user to whom the resource units indicated by the resource unit allocation subfield are allocated.

[0350] Optionally, any index indicating the number of user fields is 1 to 8 in Table 11 may include an RU allocation indication portion and a user field indication portion. The RU allocation indication portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, the RU number of RUs forming the MRU in a certain partition of contiguous frequencies to which the MRU belongs, and the frequency location of that partition of contiguous frequencies in the 240 MHz bandwidth. The user field indication 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.

[0351] Specifically, any index structure that indicates that the number of user fields in Table 11 is between 1 and 8 has k n k n-1 ...k 2 k 1 y 2 y 1 y 0 k may be n k n-1 ...k2 k 1 is the RU allocation indication part, n is the number of bits in the RU allocation indication part, and y 2 y 1 y 0 is a user field indication part, which is 3 bits and indicates 1 to 8 user fields separately.

[0352] For the number of user fields indicated by each index in Table 11, please refer to the contents corresponding to each index in Table 11. The meaning of the RU indicated by the index in Table 11 will be specifically described below.

[0353] In Table 11, indexes 1 to 9 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 1, the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, and the 160MHz subblock is the low frequency 160MHz in the 240MHz bandwidth, i.e., the 160MHz on the left side. Based on indexes 1 to 9 in Table 11, the STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the low frequency 160MHz in the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0354] In Table 11, indexes 10 to 18 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, and the 160MHz subblock is the low-frequency 160MHz in the 240MHz bandwidth, i.e., the 160MHz on the left side. Based on indexes 10 to 18 in Table 11, the STA can determine that the 484+996-tone RU is obtained by combining the second 484-tone RU in the low-frequency 160MHz subblock in the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0355] In Table 11, indexes 19 to 27 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 4, and the 160MHz subblock is the low-frequency 160MHz in the 240MHz bandwidth, i.e., the 160MHz on the left side. Based on indexes 19 to 27 in Table 11, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the low-frequency 160MHz subblock in the 240MHz bandwidth and the fourth 484-tone RU in the 160MHz subblock.

[0356] In Table 11, indexes 28 to 36 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 3, and the 160MHz subblock is the low-frequency 160MHz in the 240MHz bandwidth, i.e., the 160MHz on the left side. Based on indexes 28 to 36 in Table 11, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the low-frequency 160MHz subblock in the 240MHz bandwidth and the third 484-tone RU in the 160MHz subblock.

[0357] In Table 11, indexes 37 to 45 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 1, the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, and the 160MHz subblock is a high-frequency 160MHz in the 240MHz bandwidth, i.e., 160MHz on the right side. Based on indexes 37 to 45 in Table 11, the STA can determine that the 484+996-tone RU is obtained by combining the first 484-tone RU in the high-frequency 160MHz subblock in the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0358] In Table 11, indexes 46 to 54 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 484+996-tone RU, the number of 484-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, the number of 996-tone RUs forming the 484+996-tone RU in the 484+996-tone RU is 2, and the 160MHz subblock is a high-frequency 160MHz in the 240MHz bandwidth, i.e., 160MHz on the right side. Based on indexes 46 to 54, the STA can determine that the 484+996-tone RU is obtained by combining the second 484-tone RU in the high-frequency 160MHz subblock in the 240MHz bandwidth and the second 996-tone RU in the 160MHz subblock.

[0359] In Table 11, indexes 55 to 63 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 4, and the 160MHz subblock is a high-frequency 160MHz in the 240MHz bandwidth, i.e., 160MHz on the right side. Based on indexes 55 to 63 in Table 11, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the high-frequency 160MHz subblock in the 240MHz bandwidth and the fourth 484-tone RU in the 160MHz subblock.

[0360] In Table 11, indexes 64 to 72 indicate that the 242-tone RU corresponding to the resource unit allocation subfield belongs to the 996+484-tone RU, the number of 996-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 1, the number of 484-tone RUs forming the 996+484-tone RU in the 996+484-tone RU is 3, and the 160MHz subblock is a high-frequency 160MHz in the 240MHz bandwidth, i.e., 160MHz on the right side. Based on indexes 64 to 72 in Table 11, the STA can determine that the 996+484-tone RU is obtained by combining the first 996-tone RU in the high-frequency 160MHz subblock in the 240MHz bandwidth and the third 484-tone RU in the 160MHz subblock.

[0361] Each index in Table 11 indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, indicates the RU number of RUs that form the MRU in a certain partition of contiguous frequencies to which the MRU belongs and the frequency of that partition of contiguous frequencies in the bandwidth, and 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.

[0362] Optionally, any index in Table 11 indicating the number of user fields is 1 to 8 may include an RU allocation indication portion and a user field indication portion. The RU allocation indication portion indicates the type of MRU to which the 242-tone RU corresponding to the resource unit allocation subfield belongs, indicates the number of RUs that form the MRU in a partition of contiguous frequencies to which the MRU belongs, and indicates the frequency of that partition of contiguous frequencies in that bandwidth. The user field indication 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.

[0363] The following provides a specific example in which the resource unit allocation subfield is indicated by the index in Table 11 in the signal field of the PPDU.

[0364] Based on the example of resource unit allocation shown in FIG. 9A, when the technical measures in the embodiment corresponding to FIG. 10 of the present application are used, the signal field of the PPDU may include resource unit allocation subfield 1 to resource unit allocation subfield 4 corresponding to the first 80 MHz subblock in the 240 MHz bandwidth, resource unit allocation subfield 5 to resource unit allocation subfield 8 corresponding to the second 80 MHz subblock in the 240 MHz bandwidth, and resource unit allocation subfield 9 to resource unit allocation subfield 12 corresponding to the third 80 MHz subblock in the 240 MHz bandwidth.

[0365] The PPDU is transmitted in two content channels, which may be content channel 1 and content channel 2. Resource unit allocation subfields 1, 3, 5, 7, 9, and 11 may be transmitted in content channel 1, and resource unit allocation subfields 2, 4, 6, 8, 10, and 12 may be transmitted in content channel 2.

[0366] Resource unit allocation subfields 5 and 6 may be represented by indexes 28 through 36 in Table 11. Resource unit allocation subfields 7 and 8 may be represented by indexes 46 through 54 in Table 6.

[0367] The STA may determine, based on resource unit allocation subfields 5 and 6, that the fifth and sixth 242-tone RUs in the 240 MHz bandwidth belong to the 996+484-tone RU, and that the 996+484-tone RU includes the first and third 996-tone RUs in the 160 MHz subblock to which the 996+484-tone RU belongs, which is the lowest 160 MHz frequency in the 240 MHz bandwidth, based on resource unit allocation subfields 5 and 6. In this case, the STA may determine that the 160 MHz subblock to which the 996+484-tone RU belongs is the lowest 160 MHz frequency in the 240 MHz bandwidth. In this case, the STA includes the 996-tone RU corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and the 484-tone RU corresponding to the lowest 40 MHz frequency in the second 80 MHz subblock.

[0368] The STA may determine, based on resource unit allocation subfields 7 and 8, that the seventh and eighth 242-tone RUs in the 240 MHz bandwidth belong to the 484+996-tone RU, and that the 484+996-tone RU includes a second 484-tone RU and a second 996-tone RU in the 160 MHz 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 160 MHz subblock to which the 484+996-tone RU belongs is a high frequency 160 MHz in the 240 MHz bandwidth. In this case, the STA may determine that the 484+996-tone RU includes a 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz subblock in the 240 MHz bandwidth and a 996-tone RU corresponding to the third 80 MHz subblock.

[0369] 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 indices in Table 11 or by other indices, for example, by indices in Table 9 or Table 10.

[0370] Resource unit allocation subfields 1 through 4 and 9 through 12 may indicate the number of user fields in the user specific fields that correspond to the MRUs, or may not be intended to determine the number of user fields in the user specific fields that correspond to the MRUs.

[0371] When resource unit allocation subfields 1 to 4 indicate the number of user fields corresponding to MRUs in the user-specific field, the STA determines the number of user fields corresponding to 996+484-tone RUs, including a 996-tone RU corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and a 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz subblock, based on the sum of the numbers of user fields indicated by resource unit allocation subfields 1 to 6.

[0372] When resource unit allocation subfields 1 to 4 do not indicate the number of user fields corresponding to MRUs in the user-specific field, the STA determines the number of user fields corresponding to 996+484-tone RUs, including the 996-tone RU corresponding to the first 80 MHz subblock in the 240 MHz bandwidth and the 484-tone RU corresponding to the lowest 40 MHz frequency of the second 80 MHz subblock, based on the sum of the numbers of user fields indicated by resource unit allocation subfields 5 and 6.

[0373] When resource unit allocation subfields 9 to 12 indicate the number of user fields corresponding to MRUs in the user-specific field, the STA determines the number of user fields corresponding to 484+996-tone RUs, including the 484-tone RU corresponding to the highest 40 Hz frequency of the second 80 MHz subblock in the 240 MHz bandwidth and the 996-tone RU corresponding to the third 80 MHz subblock, based on the sum of the numbers of user fields indicated by resource unit allocation subfields 7 to 12.

[0374] When resource unit allocation subfields 9 to 12 do not indicate the number of user fields corresponding to MRUs in the user-specific field, the STA determines the number of user fields corresponding to 484+996-tone RUs, including the 484-tone RU corresponding to the highest 40 MHz frequency of the second 80 MHz subblock in the 240 MHz bandwidth and the 996-tone RU corresponding to the third 80 MHz subblock, based on the sum of the numbers of user fields indicated by resource unit allocation subfields 7 and 8.

[0375] 11A is a schematic diagram of the structure of a signal field. Resource unit allocation subfields 1 to 4 and 9 to 12 may be indicated by indexes in Table 11. Resource unit allocation subfields 1 to 4 indicate the number of user fields that correspond to MRUs in the user specific field.

[0376] Specifically, resource unit allocation subfield 1 may be indicated by index 30 in Table 11 to indicate 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 in the 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that the 160 MHz subblock is the left 160 MHz subblock in the 240 MHz bandwidth, and to indicate that two user fields contribute to the user-specific fields of the same 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 indicate that the second 242-tone RU in the 240 MHz 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 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that the 160 MHz subblock is the left 160 MHz subblock in the 240 MHz bandwidth, and to indicate that two user fields contribute to the user-specific fields of the same EHT-SIG content channel (content channel 2) as the resource unit allocation subfield.

[0377] Resource unit allocation subfields 3 to 6 may be indicated by index 28 in Table 11 to indicate that the corresponding 20 MHz subblock belongs to a 996+484-tone RU, that the 996+484-tone RU is obtained by combining the first 996-tone RU in the 160 MHz subblock to which the 996+484-tone RU belongs and the third 484-tone RU in the 160 MHz subblock, and that the 160 MHz subblock is the left 160 MHz subblock in the 240 MHz bandwidth, and to indicate that zero user fields contribute to the user-specific field of the same EHT-SIG content channel as the resource unit allocation subfield.

[0378] Resource unit allocation subfield 7 may be indicated by index 48 in Table 11 to indicate that the seventh 242-tone RU in the 240 MHz 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 160 MHz sub-block to which the 484+996-tone RU belongs, and that the 160 MHz sub-block is the left 160 MHz sub-block in the 240 MHz bandwidth, and to indicate that two user fields contribute to the user-specific fields of the same EHT-SIG content channel 1 as the resource unit allocation subfield.

[0379] Resource unit allocation subfield 8 may be indicated by index 47 in Table 11 to indicate that the seventh 242-tone RU in the 240 MHz bandwidth belongs to the 484+996-tone RU, that the 484+996-tone RU includes the second 484-tone RU and the second 996-tone RU in the 160 MHz sub-block to which the 484+996-tone RU belongs, and that the 160 MHz sub-block is the left 160 MHz sub-block in the 240 MHz bandwidth, and to indicate that one user field contributes to the user-specific field of the same EHT-SIG content channel 2 as the resource unit allocation subfield.

[0380] It can be seen that any one of the resource unit allocation subfields 1 to 12 can indicate that the corresponding 242-tone RU belongs to the MRU, and can indicate the frequency locations of the 484-tone RU and 996-tone RU forming the 484+996-tone RU in the 160 MHz subblock to which the MRU belongs, and the frequency location of the 160 MHz subblock in the 240 MHz bandwidth, in order to indicate the frequency locations of the 484-tone RU and 996-tone RU forming the MRU in the 240 MHz bandwidth in which the MRU formed by combining the 484-tone RU and the 996-tone RU is located. In this way, any one of the resource unit allocation subfields 1 to 12 can accurately indicate a specific 484-tone RU and a specific 996-tone RU of a specific 80 MHz subblock included in the MRU indicated by the resource unit allocation subfield.

[0381] Please refer to the schematic diagram of the structure of the signal field shown in Figure 11B. If the signal field does not include resource unit allocation subfields corresponding to the first and third 80 MHz subblocks 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 indicate that the first 996-tone RU and the third 484-tone RU of 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 fields in the same EHT-SIG content channel as this resource unit allocation subfield. Resource unit allocation subfield 6, which corresponds to the sixth 20 MHz subblock in the 240 MHz bandwidth, may be indicated by index 30 in Table 11 to indicate that the first 996-tone RU and the third 484-tone RU of 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 user-specific fields in the same EHT-SIG content channel as this resource unit allocation subfield.

[0382] Resource unit allocation subfield 7, corresponding to the seventh 20 MHz subblock in the 240 MHz bandwidth, may be indicated by index 48 in Table 11 to indicate that the second 484-tone RU and the second 996-tone RU of the highest 160 MHz frequency in the 240 MHz bandwidth form a 484+996-tone RU and that the 484+996-tone RU contributes two user fields to user-specific fields in the same EHT-SIG content channel as this resource unit allocation subfield. Resource unit allocation subfield 8, corresponding to the eighth 20 MHz subblock in the 240 MHz bandwidth, may be indicated by index 47 in Table 11 to indicate that the second 484-tone RU and the second 996-tone RU of the highest 160 MHz frequency in the 240 MHz bandwidth form a 484+996-tone RU and that the 484+996-tone RU contributes one user field to the user-specific fields in the same EHT-SIG content channel as this resource unit allocation subfield.

[0383] The STA may determine that the first 996-tone RU and the third 484-tone RU of the lowest 160 MHz frequency in the 240 MHz bandwidth form a 996+484-tone RU based on resource unit allocation subfield 5 and resource unit allocation subfield 6 corresponding to the second 80 MHz subblock. The STA determines that the number of users field corresponding to the 996+484-tone RU is 4 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.

[0384] The STA may further determine that the second 484-tone RU and the second 996-tone RU of the highest 160 MHz frequency in the 240 MHz bandwidth form a 484+996-tone RU based on resource unit allocation subfield 7 and resource unit allocation subfield 8 corresponding to the second 80 MHz subblock. The STA determines that the number of users field corresponding to the 484+996-tone RU is 3 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.

[0385] In some other embodiments of the present application, when a 240 MHz bandwidth includes two MRUs, each of which includes a 996-tone RU and a 484-tone RU, a communication standard (e.g., 802.11be and standards after 802.11be) may specify the frequency positions of the 996-tone RU and the 484-tone RU forming each MRU in the 240 MHz bandwidth. In other words, when a contiguous 240 MHz bandwidth includes two MRUs, each of which includes a 996-tone RU and a 484-tone RU, the frequency positions of the 996-tone RU and the 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. The 996+484-tone RU in this embodiment is an MRU that includes a 996-tone RU with a lower frequency and a 484-tone RU with a higher frequency. The 484+996-tone RU in the embodiment of the PPDU transmission method of the present application is an MRU that includes a low-frequency 484-tone RU and a high-frequency 996-tone RU.

[0386] For example, a 240 MHz bandwidth may include, in ascending order of absolute frequency, a 996-tone RU, a 484-tone RU, a 484-tone RU, and a 996-tone RU. The low frequency 996-tone RU and 484-tone RU are combined into a 996+484-tone RU, and the high frequency 484-tone RU and 996-tone RU are combined into a 484+996-tone RU.

[0387] In such an embodiment, every resource unit allocation subfield that corresponds to an MRU in the signal field may indicate the frequency location of the MRU in the 240 MHz bandwidth.

[0388] The approach of this embodiment can be implemented by using the following steps.

[0389] 1201. The AP generates a PPDU.

[0390] The bandwidth for transmitting PPDU is 240 MHz or more, and the contiguous 240 MHz bandwidth includes 996+484-tone RU and 484+996-tone RU.

[0391] The PPDU includes a resource unit allocation subfield corresponding to 996+484-tone RUs and a resource unit allocation subfield corresponding to 484+996-tone RUs.

[0392] The resource unit allocation subfield corresponding to the 996+484-tone RU indicates the frequency locations of the 996-tone RU and the 484-tone RU forming the 996+484-tone RU in the 240 MHz bandwidth. The resource unit allocation subfield corresponding to the 484+996-tone RU indicates the frequency locations of the 996-tone RU and the 484-tone RU forming the 484+996-tone RU in the 240 MHz bandwidth. The user specific field includes a user field corresponding to the 996+484-tone RU and a user field corresponding to the 484+996-tone RU. The resource unit allocation subfield may be a subfield in a signal field (e.g., EHT-SIG) of the PPDU.

[0393] 1202. The AP transmits a PPDU.

[0394] In response, the STA receives the PDU.

[0395] 1203. The STA determines, based on the PPDU, a resource unit allocation subfield corresponding to a 996+484-tone RU, a resource unit allocation subfield corresponding to a 484+996-tone RU, frequency locations of the 996-tone RU and the 484-tone RU that form the 996+484-tone RU in the 240 MHz bandwidth, and frequency locations of the 996-tone RU and the 484-tone RU that form the 484+996-tone RU in the 240 MHz bandwidth.

[0396] Thus, the STA can accurately determine the frequency locations of the 996-tone RUs and 484-tone RUs that form the MRU in the 240 MHz bandwidth based on the resource unit allocation subfield in the signal field.

[0397] Specifically, the resource unit allocation subfield corresponding to the MRU may be indicated by the index shown in Table 12. [Table 12]

[0398] For the number of user fields indicated by each index in Table 12, please refer to the portion of the content indicated corresponding to each index in Table 12.

[0399] Indexes 1 to 9 in Table 12 indicate 996+484-tone RUs. A 996-tone RU corresponding to a first 80 MHz sub-block in a 240 MHz bandwidth and a 484-tone RU corresponding to a first 40 MHz sub-block of a second 80 MHz sub-block form one 996+484-tone RU, and a 484-tone RU corresponding to a second 40 MHz sub-block of a second 80 MHz sub-block in a 240 MHz bandwidth and a 996-tone RU corresponding to a third 80 MHz sub-block in a 240 MHz bandwidth form a 484+996-tone RU. In such a measure, when a 240 MHz bandwidth includes two MRUs, each of which includes a 996-tone RU and a 484-tone RU, the communication standard may specify the frequency locations of the 996-tone RU and the 484-tone RU forming each MRU in the 240 MHz bandwidth, so that the frequency locations of the 996-tone RU and the 484-tone RU forming each MRU are fixed in the 240 MHz bandwidth and are unique. Thus, the number of indexes for indicating the frequency locations of the 996-tone RU and the 484-tone RU forming each MRU in the 240 MHz bandwidth can be reduced, and the resource unit allocation subfield can indicate richer information by using the saved indexes.

[0400] Optionally, indexes 2 to 9 indicating 1 to 8 user fields in Table 12 may include an RU allocation indication portion and a user field indication portion. The RU allocation indication portion indicates the frequency locations in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the 996+484-tone RU in the 240 MHz bandwidth, and the frequency locations in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the 484+996-tone RU. The user field quantity indication 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 indication portion may be, for example, 3 bits.

[0401] Specifically, the structure with indexes 2 to 9 is k n k n-1 ...k 2 k 1 y 2 y 1 y 0 k may be n k n-1 ...k 2 k 1 is the part indicating the MRU frequency position, n is the number of bits in the RU allocation indication part, and y 2 y 1 y 0 is a user field indication part, which is 3 bits and indicates 1 to 8 user fields separately. In an optional embodiment, the structure of indexes 2 to 9 may be the structure shown in Table 13. [Table 13A] [Table 13B] [Table 13C]

[0402] In some other embodiments of the present application, as specified in communication standards (e.g., 802.11be and standards after 802.11be), in a 240 MHz bandwidth, 996-tone RUs and 484-tone RUs in only one 160 MHz sub-block may be combined into 996+484-tone RUs or 484+996-tone RUs. The 996+484-tone RUs in this embodiment are MRUs including 996-tone RUs with lower frequencies and 484-tone RUs with higher frequencies. The 484+996-tone RUs in the embodiment of the PPDU transmission method of the present application are MRUs including 484-tone RUs with lower frequencies and 996-tone RUs with higher frequencies.

[0403] In one possible implementation, the 160 MHz sub-blocks that are allowed to include 996+484-tone RUs or 484+996-tone RUs in a contiguous 240 MHz bandwidth are fixed. For example, as specified in the communication standard, in a contiguous 240 MHz bandwidth, 996-tone RUs and 484-tone RUs in only the primary 160 MHz sub-blocks (160 MHz sub-blocks including the primary 80 MHz sub-blocks and the secondary 80 MHz sub-blocks) in the 240 MHz bandwidth may be combined into 996+484-tone RUs or 484+996-tone RUs.

[0404] In another possible implementation, the 160 MHz sub-blocks that are allowed to include 996+484-tone RUs or 484+996-tone RUs in the contiguous 240 MHz bandwidth may be understood as variable, dynamic, or semi-static. For example, the AP may transmit indication information to indicate that 996-tone RUs and 484-tone RUs in the first and second 80 MHz sub-blocks in the 240 MHz bandwidth are allowed to be combined into 996+484-tone RUs or 484+996-tone RUs in the second and third 80 MHz sub-blocks in the 240 MHz bandwidth, or to indicate that 996-tone RUs and 484-tone RUs in the second and third 80 MHz sub-blocks are allowed to be combined into 996+484-tone RUs. Thus, the STA can determine the frequency location of the 996-tone RU and the 484-tone RU that form the 996+484-tone RU or the 484+996-tone RU in the 240 MHz bandwidth based on the 160 MHz sub-block that is allowed to include the 996+484-tone RU or the 484+996-tone RU. The STA may send the indication information to the STA in one of the beacon frame, the probe response frame, or the association response frame.

[0405] This can avoid the problem that the continuous 240 MHz bandwidth contains two 996+484-tone RUs, and can avoid the problem that the STA cannot accurately know the RU allocation status due to the unclear indication of the resource unit allocation subfield, so that the STA receives data from the RU allocated to the STA, and the STA reads the data correctly.

[0406] Optionally, the 240 MHz bandwidth may be the complete bandwidth for transmitting the PPDU. Alternatively, the 240 MHz bandwidth may be 240 MHz other than the punctured 80 MHz in the 320 MHz bandwidth for transmitting the PPDU. In this case, the 320 MHz bandwidth includes a primary 160 MHz sub-block and a secondary 160 MHz sub-block. If one 80 MHz sub-block of the primary 160 MHz sub-block is punctured, the secondary 160 MHz sub-block may be allowed to include 996+484-tone RUs or 484+996-tone RUs. If one 80 MHz sub-block of the secondary 160 MHz sub-block is punctured, the primary 160 MHz sub-block may be allowed to include 996+484-tone RUs or 484+996-tone RUs.

[0407] It should be understood that the approach for precisely indicating the 996-tone RUs and 484-tone RUs forming the MRU in this embodiment of the present application, and the approach where the resource unit allocation subfield cannot precisely indicate that the 320 MHz bandwidth includes 2*996-tone RUs and 996+484-tone RUs, may be implemented separately or in combination.

[0408] The above-mentioned embodiment of the present application describes the method provided in the embodiment of the present application from the viewpoint of an access point and a station. To implement the functions of the above-mentioned method provided in the embodiment of the present application, the access point and the station may include a hardware structure and a software module to implement the above-mentioned functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Some functions of the above-mentioned 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.

[0409] Please refer to Fig. 12. Fig. 12 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1200 includes a processing unit 1201 and a sending unit 1202. The transmission device 1200 is a PPDU transmission device. The transmission device 1200 can be a station or an access point. The processing unit 1201 may be understood as a processor of a communication device, and the sending unit 1202 may be understood as a transmitter of a transceiver of the communication device.

[0410] The processing unit 1201 is configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including 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 among the resource unit allocation subfields corresponding to each 80 MHz subblock among the plurality of 80 MHz subblocks in the bandwidth for transmitting the PPDU is for determining or indicating the type of the MRU.

[0411] The sending unit 1202 is configured to send the PPDU.

[0412] The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz. The bandwidth includes one or more 80 MHz sub-blocks. For example, when the bandwidth is 240 MHz, three 80 MHz sub-blocks are included, and when the bandwidth is 320 MHz, four 80 MHz sub-blocks are included. Thus, the resource unit allocation sub-field indication method is simplified, and the transmission device 1200 can determine the type of MRU based on the number of resource unit allocation sub-fields corresponding to the MRU among the resource unit allocation sub-fields corresponding to each 80 MHz sub-block among the multiple 80 MHz sub-blocks in the bandwidth for transmitting the PPDU, to determine the RU to form the MRU. The bandwidth for transmitting the PPDU is equal to or larger than 80 MHz. This can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0413] Please refer to Fig. 13. Fig. 13 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1300 includes a processing unit 1301 and a sending unit 1302. The transmission device 1300 is a PPDU transmission device. The transmission device 1300 can be a station or an access point. The processing unit 1301 may be understood as a processor of a communication device, and the sending unit 1302 may be understood as a transmitter of a transceiver of the communication device.

[0414] The processing unit 1301 is configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a consecutive 240 MHz in 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 are set according to the standard.

[0415] The transmitting unit 1302 is configured to transmit the PPDU.

[0416] Thus, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU. The transmission device 1300 can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, and thereby allocate the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combination cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0417] Please refer to Figure 14. Figure 14 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1400 includes a processing unit 1401 and a sending unit 1402. The transmission device 1400 is a PPDU transmission device. The transmission device 1400 can be a station or an access point. The processing unit 1401 may be understood as a processor of a communication device, and the sending unit 1402 may be understood as a transmitter of a transceiver of the communication device.

[0418] The processing unit 1401 is configured to generate a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard.

[0419] The transmitting unit 1402 is configured to transmit the PPDU.

[0420] Thus, the standard specifies the frequency positions in the 320 MHz 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 transmission device 1400 can accurately determine the frequency positions in the 320 MHz bandwidth of the 996-tone RU and 484-tone RU forming the first RU and the 2*996-tone RU and the 2*996-tone RU and 484-tone RU forming the second MRU, and thereby allocate the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, in such a measure, different combination cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 2*996+484-tone RU and the 484+2*996-tone RU can be reduced.

[0421] Please refer to Figure 15. Figure 15 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1500 includes a processing unit 1501 and a sending unit 1502. The transmission device 1500 is a PPDU transmission device. The transmission device 1500 can be a station or an access point. The processing unit 1501 may be understood as a processor of a communication device, and the sending unit 1502 may be understood as a transmitter of a transceiver of the communication device.

[0422] The processing unit 1501 is configured to generate a PPDU, the PPDU including 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 a frequency location of a 160 MHz subblock to which the first MRU belongs in a bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by the AP.

[0423] The transmitting unit 1502 is configured to transmit the PPDU.

[0424] That is, 996-tone RUs and 484-tone RUs can be combined into MRUs that are only within the allowed 160 MHz sub-blocks defined in the standard or indicated by the instruction information sent by the AP.

[0425] In this way, the transmission device 1500 can accurately determine which 160 MHz sub-blocks contain 996-tone RUs and 484-tone RUs in a 996+484-tone RU or 484+996-tone RU, and thereby allocate the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a manner, different combining cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0426] Please refer to Figure 16. Figure 16 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1600 includes a processing unit 1601 and a sending unit 1602. The transmission device 1600 is a PPDU transmission device. The transmission device 1600 can be a station or an access point. The processing unit 1601 may be understood as a processor of a communication device, and the sending unit 1602 may be understood as a transmitter of a transceiver of the communication device.

[0427] The processing unit 1601 is configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 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 in the 240 MHz bandwidth and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth.

[0428] The transmitting unit 1602 is configured to transmit the PPDU.

[0429] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0430] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmission device 1600 skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+006-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0431] Please refer to Figure 17. Figure 17 is a schematic diagram of a structure of a PPDU transmission device according to an embodiment of the present application. The transmission device 1700 includes a processing unit 1701 and a sending unit 1702. The transmission device 1700 is a PPDU transmission device. The transmission device 1700 can be a station or an access point. The processing unit 1701 may be understood as a processor of a communication device, and the sending unit 1702 may be understood as a transmitter of a transceiver of the communication device.

[0432] The processing unit 1701 is configured to generate a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a contiguous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a location 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 a second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth.

[0433] The transmitting unit 1702 is configured to transmit the PPDU.

[0434] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmission device 1700 can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0435] Please refer to Figure 18. Figure 18 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 1801 may be understood as a receiver of a transceiver of a communication device, and the processing unit 1802 may be understood as a processor of the communication device.

[0436] The receiving unit 1801 is configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including 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 among the resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining a type of the MRU.

[0437] The processing unit 1802 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRUs.

[0438] It may 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 transmission device may 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 subfields corresponding to each 80 MHz subblock among the multiple 80 MHz subblocks in the bandwidth for transmitting the PPDU.

[0439] In this way, the resource unit allocation subfield indication scheme is simplified, and the transmission device 1900 can determine which type of MRU is included in the bandwidth for transmitting the PPDU based on the resource unit allocation subfield, which can implement the combination of multiple RUs into one MRU and the allocation of the MRU to one or more users.

[0440] Please refer to Figure 19. Figure 19 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 1901 may be understood as a receiver of a transceiver of a communication device, and the processing unit 1902 may be understood as a processor of the communication device.

[0441] The receiving unit 1901 is configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating two first MRUs, the 240 MHz bandwidth to which the two first MRUs belong is a consecutive 240 MHz in 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 are set according to the standard.

[0442] The processing unit 1902 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0443] In such a manner, the communication standard specifies the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, and the transmitting device can determine that the bandwidth for transmitting the PPDU includes two first MRUs based on the resource unit allocation subfield, and can accurately determine the frequency positions in the 240 MHz bandwidth of the 996-tone RU and the 484-tone RU forming each first MRU, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users. In addition, in such a manner, different combination cases do not need to be indicated by different indexes in the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RU and the 484+996-tone RU can be reduced.

[0444] Please refer to Fig. 20. Fig. 20 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 2001 may be understood as a receiver of a transceiver of a communication device, and the processing unit 2002 may be understood as a processor of the communication device.

[0445] The receiving unit 2001 is configured to receive a PPDU, the PPDU including 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard.

[0446] The processing unit 2002 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0447] In such a scheme, the standard specifies the frequency positions in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU. The transmission device 2000 can determine that the bandwidth for transmitting the PPDU includes the first MRU and the second MRU based on the resource unit allocation subfield, and can accurately determine the frequency positions in the 320 MHz bandwidth of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU, thereby allocating the MRU obtained by combining the 2*996-tone RU and the 484-tone RU to one or more users. In addition, with such an approach, different combining 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 2*996+484-tone RU and 484+2*996-tone RU can be reduced.

[0448] Please refer to Figure 21. Figure 21 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 2201 may be understood as a receiver of a transceiver of a communication device, and the processing unit 2202 may be understood as a processor of the communication device.

[0449] The receiving unit 2101 is configured to receive a PPDU, the PPDU including 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 a frequency location of the 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency location set according to the standard or a frequency location indicated by the instruction information transmitted by the AP.

[0450] The processing unit 2102 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0451] Thus, the transmission device 2100 can determine that the bandwidth for transmitting the PPDU includes an MRU including 996-tone RUs and 484-tone RUs based on the resource unit allocation subfield, and can accurately determine which 160 MHz subblocks the 996-tone RUs and 484-tone RUs include, and thereby allocate the MRU obtained by combining the 996-tone RUs and 484-tone RUs to one or more users. In addition, in such a manner, different combination cases do not need to be indicated by different indexes of the resource unit allocation subfield, and the number of indexes used for the resource unit allocation subfield to indicate the 996+484-tone RUs and 484+996-tone RUs can be reduced.

[0452] Please refer to Figure 22. Figure 22 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 2201 may be understood as a receiver of a transceiver of a communication device, and the processing unit 2202 may be understood as a processor of the communication device.

[0453] The receiving unit 2201 is configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU including a continuous 240 MHz, the first MRU including 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 frequency locations of the 996-tone RU and the 484-tone RU in a 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 in the 240 MHz bandwidth and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth.

[0454] The processing unit 2202 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRUs.

[0455] Specifically, the processing unit 2202 of the transmission device can determine the frequency locations in the 240 MHz 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 80 MHz frequency and the resource unit allocation subfield corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RU that forms the first MRU is located.

[0456] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmission device 2200 skips the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency in the 240 MHz bandwidth, and can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating an MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0457] Please refer to Figure 23. Figure 23 is a schematic diagram of a structure of a PPDU transmission device according to an 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 can be a station or an access point. The receiving unit 2301 may be understood as a receiver of a transceiver of a communication device, and the processing unit 2302 may be understood as a processor of the communication device.

[0458] The receiving unit 2301 is configured to receive a PPDU, the PPDU including a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields including a resource unit allocation subfield indicating a first MRU, a bandwidth for transmitting the PPDU is 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 frequency locations of the 996-tone RU and the 484-tone RU in a 160 MHz subblock to which the first MRU belongs and a location 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 a second lowest 80 MHz frequency in the 240 MHz bandwidth is for determining or indicating frequency locations of the 996-tone RU and the 484-tone RU in the 240 MHz bandwidth.

[0459] The processing unit 2302 is configured to analyze at least a portion of the resource unit allocation subfields among the plurality of resource unit allocation subfields to determine the RUs that form the MRU.

[0460] Specifically, the transmission device can determine the frequency locations in the 240 MHz 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 second lowest 80 MHz frequency and the resource unit allocation field corresponding to the highest 80 MHz frequency, i.e., can determine at which frequency location in the 240 MHz bandwidth the RUs formed by the first MRU are located.

[0461] It should be understood that this approach may be applied to a scenario in which the 240 MHz bandwidth includes one first MRU, or may be applied to a scenario in which the 240 MHz bandwidth includes two first MRUs.

[0462] In such a method, when determining the frequency locations of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU, the transmission device can accurately determine the frequency locations in the 240 MHz bandwidth of the 996-tone RUs and 484-tone RUs that form a 996+484-tone RU or a 484+996-tone RU based on the resource unit allocation subfield corresponding to the second lowest 80 MHz frequency and / or the resource unit allocation subfield corresponding to the highest 80 MHz frequency, thereby allocating the MRU obtained by combining the 996-tone RU and the 484-tone RU to one or more users.

[0463] For the relevant content of the above-mentioned transmission device embodiment, please refer to the relevant content of the above-mentioned method embodiment, and the details will not be described again here.

[0464] Those skilled in the art may further understand that the various illustrative logical blocks and steps listed in the embodiments of the present application may 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. Those skilled in the art may use various methods to implement the functions described for each specific application, but the implementation form should not be considered as going beyond the scope of the embodiments of the present application.

[0465] The present application further provides a computer-readable storage medium, which stores a computer program, and when the computer-readable storage medium is executed by a computer, implements the functions of any one of the above-mentioned method embodiments.

[0466] The present application further provides a computer program product comprising instructions, which, when executed by a computer, implement the functionality of any one of the aforementioned method embodiments.

[0467] All or part of the above-mentioned embodiments may be implemented by using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, some or all of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded into a computer and executed thereon, the procedures or functions according to the embodiments of the present application are generated completely or partially. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or another programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, a computer, a server, or a data center to a computer, a server, or a data center of another website in a wired (e.g., coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (e.g., infrared, radio, or microwave) manner. The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device, such as a server or a data center, that incorporates one or more available media. The usable media may be magnetic media (e.g., a floppy disk, hard disk, or magnetic tape), optical media (e.g., a high density digital video disc (DVD)), semiconductor media (e.g., a solid state disk (SSD)), and the like.

[0468] Those skilled in the art may understand that the various reference numerals in this application, such as "first" and "second", are only used for distinction to simplify the description, and are not used to limit the scope of the embodiments of this application or to indicate a sequence.

[0469] The correspondences shown in the tables of the present application may be configured or may be predefined. The values ​​of the information in the tables are merely examples, and other values ​​may be configured. This is not limited in the present application. When the correspondences between the information and each parameter are configured, it is not necessary to configure all the correspondences shown in the tables. For example, the correspondences shown in some rows in the tables of the present application may not be configured as alternatives. In another example, appropriate transformations and adjustments, such as division and synthesis, may be performed based on the aforementioned tables. The names of the parameters shown in the titles of the aforementioned tables may alternatively be other names that can be understood by the communication device, and the values ​​or representations of the parameters may alternatively be other values ​​or representations that can be understood by the communication device. 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 alternatively be used.

[0470] "Predefined" in this application may be understood as "define," "predefine," "store," "prestore," "precondition," "preconfigure," "set," or "prebake."

[0471] In combination with the examples described in the embodiments disclosed herein, those skilled in the art may recognize that the units and algorithm steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether a function is performed by hardware or software depends on the specific application and design constraints of technical measures. To implement the functions described for each specific application, those skilled in the art may use various methods, but the implementation form should not be considered to go beyond the scope of this application.

[0472] For convenience and simplicity of description, those skilled in the art can clearly understand that for detailed operation processes of the described systems, devices, and units, reference can be made to the corresponding processes in the above-mentioned method embodiments.

[0473] The above description is merely a specific implementation of the present application, and is not intended to limit the scope of protection of the present application. Any variations or replacements that are easily understood by those skilled in the art within the technical scope disclosed in this application shall fall within the scope of protection of the present application. Therefore, the scope of protection of the present application depends on the scope of protection of the claims. [Explanation of symbols]

[0474] 200 Communication equipment 201 Processor 202 Memory 203 Instructions 204 Command 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 Receiver Unit 2002 Processing Unit 2100 Transmission equipment, communication equipment 2101 Receiver unit 2102 Processing Unit 2200 Transmission equipment, communication equipment 2201 Receiver Unit 2202 Processing Unit 2300 Transmission equipment, communication equipment 2301 Receiver Unit 2302 Processing Unit

Claims

1. A physical layer protocol data unit (PPDU) transmission method, comprising: generating a PPDU; transmitting the PPDU; The PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising: the plurality of resource unit allocation subfields include a resource unit allocation subfield corresponding to a plurality of resource units MRU, 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 among the resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining the type of the MRU; 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 continuous 240 MHz bandwidth within the bandwidth for transmitting the PPDU, and frequency positions in the 240 MHz bandwidth of a 996-tone RU and a 484-tone RU forming each of the first RUs are set according to a standard; 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; or The plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU being composed of a 996-tone RU and a 484-tone RU, and the frequency location of a 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP. A PPDU transmission method that satisfies at least one of the following:

2. receiving a PPDU, the PPDU comprising a plurality of resource unit allocation subfields; and parsing at least a portion of the resource unit allocation subfields in the plurality of resource unit allocation subfields to determine which RUs form an MRU; The plurality of resource unit allocation subfields further comprise: the plurality of resource unit allocation subfields include a resource unit allocation subfield corresponding to the MRU, 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 among resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining a type of the MRU; 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 continuous 240 MHz bandwidth within the bandwidth for transmitting the PPDU, and frequency positions in the 240 MHz bandwidth of a 996-tone RU and a 484-tone RU forming each of the first RUs are set according to a standard; 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; or The plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU being composed of a 996-tone RU and a 484-tone RU, and the frequency location of a 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP. A PPDU transmission method that satisfies at least one of the following:

3. a processing unit configured to generate a PPDU; a transmitting unit configured to transmit the PPDU, The PPDU comprises a plurality of resource unit allocation subfields, the plurality of resource unit allocation subfields comprising: the plurality of resource unit allocation subfields include a resource unit allocation subfield corresponding to an MRU, 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 among resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining a type of the MRU; 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 continuous 240 MHz bandwidth within the bandwidth for transmitting the PPDU, and frequency positions in the 240 MHz bandwidth of a 996-tone RU and a 484-tone RU forming each of the first RUs are set according to a standard; 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; or The plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU being composed of a 996-tone RU and a 484-tone RU, and the frequency location of a 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP. A PPDU transmitting device that satisfies at least one of the following criteria:

4. a receiving unit configured to receive a PPDU, the PPDU comprising a plurality of resource unit allocation subfields; a processing unit configured to analyze at least a portion of the resource unit allocation subfields in the plurality of resource unit allocation subfields to determine RUs that form an MRU; The plurality of resource unit allocation subfields further comprise: the plurality of resource unit allocation subfields include a resource unit allocation subfield corresponding to the MRU, 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 among resource unit allocation subfields corresponding to each 80 MHz subblock among a plurality of 80 MHz subblocks in a bandwidth for transmitting the PPDU is for determining a type of the MRU; 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 continuous 240 MHz bandwidth within the bandwidth for transmitting the PPDU, and frequency positions in the 240 MHz bandwidth of a 996-tone RU and a 484-tone RU forming each of the first RUs are set according to a standard; 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 frequency positions in a bandwidth for transmitting the PPDU of the 996-tone RU and the 484-tone RU forming the first RU and the 2*996-tone RU and the 484-tone RU forming the second MRU are set according to a standard; or The plurality of resource unit allocation subfields include a resource unit allocation subfield indicating a first MRU, the first MRU being composed of a 996-tone RU and a 484-tone RU, and the frequency location of a 160 MHz subblock to which the first MRU belongs in the bandwidth for transmitting the PPDU is a frequency location set according to a standard or a frequency location indicated by instruction information transmitted by an AP. A PPDU transmitting device that satisfies at least one of the following criteria:

5. A communications device configured to transmit a PPDU, the communications device comprising a processor and a transceiver, the method of claim 1 or 2 being performed when the processor executes a computer program or instructions in a memory.

6. 3. A computer readable storage medium having stored thereon computer instructions for directing a communication device to perform the method of claim 1 or 2.

7. A computer program product comprising instructions, which when executed on a computer, enable the computer to carry out the method according to claim 1 or 2.

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