Resource unit indication method, access point and site

Abstract

The invention provides a resource unit indication method, an access point and a station. In the method, a resource unit subfield in a trigger frame comprises a frequency band range indication and a resource unit indication; the resource unit indication is used for indicating the MRU allocated to the station, and the frequency band range indication is used for indicating the frequency band range where one RU in the MRU is located, for example, the resource unit indication is used for indicating the 80MHz where the minimum RU in the MRU is located, so that the frequency band range indication not only indicates the frequency band range related to the MRU, but also can carry more information, for example, the frequency band range where the minimum RU is located. Visibly, the method and the device can be applied to 802.11 ax, 802.11 be and future WiFi systems, and compared with the mode that the current frequency band range indication only indicates the lowest frequency band range related to the MRU, the method and the device are beneficial to saving the number of indexes required to be indicated by the resource unit indication, so that the signaling overhead of the system is saved.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202511083825.9 (22) Application Date 2021.01.05 (66) Domestic Priority Data 202010923701.8 2020.09.04 CN 202011395419.3 2020.12.02 CN (62) Divisional Application Data 202110009966.1 2021.01.05 (71) Applicant Huawei Technologies Co., Ltd. Address 518129, Bantian Huawei Headquarters Office Building, Longgang District, Shenzhen, Guangdong Province (72) Inventors Hu Mengshi, Yu Jianganming (74) Patent Agency Guangzhou Sanhuan Patent & Trademark Agency Co., Ltd. 44202 Patent Attorney Chen Cong (51) Int.Cl. H04W 72 / 0453(2023.01) H04W 84 / 12(2009.01) H04W 88 / 08(2009.01) (54) Invention Title: Resource Unit Indication Method, Access Point, and Site (57) Abstract: This application provides a resource unit indication method, access point, and site. In this method, the resource unit subfield in the trigger frame includes a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the MRU to which the site is assigned, and the frequency band range indication is used to indicate the frequency band range where one of the RUs in the MRU is located, such as the resource unit indication indicating the 80MHz range where the smallest RU in the MRU is located, so that the frequency band range indication not only indicates the frequency band range related to the MRU, but also carries more information, such as the frequency band range where the smallest RU is located. Therefore, this application can be applied to 802.11ax, 802.11be, and future WiFi systems. Compared with the current method of indicating the lowest frequency band range associated with the MRU, it is beneficial to save the number of indexes required for resource unit indication, thereby saving system signaling overhead. Claims 5 pages, Description 75 pages, Drawings 10 pages, CN 121057024 A 2025.12.02 CN 1 21 05 70 24 A 1. A resource unit indication method, characterized in that the method includes: a station receiving a trigger frame from an access point; the trigger frame includes a public information field and a user information list field, the user information list field includes one or more user information fields, the one or more user information fields include a resource unit allocation subfield for indicating resource allocation to the station, the resource unit allocation subfield includes a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate multiple resource units (MRUs) allocated to the station, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs; wherein,The MRU indicated by the resource unit indicator is (996+484)-tone RU, and the frequency band range indicated by the frequency band range is the 80MHz range where the 484-tone RU of the (996+484)-tone RU is located; or, the MRU indicated by the resource unit indicator is (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range is the 80MHz range where the 242-tone RU of the (996+484+242)-tone RU is located; or, the MRU indicated by the resource unit indicator is (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range is the 80MHz range where the 484-tone RU of the (3*996+484)-tone RU is located; the station determines the assigned MRU based on the frequency band range indicator and the resource unit indicator. 2. A resource unit indication method, characterized in that the method comprises: an access point determining a trigger frame; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation sub-field for indicating resource allocation to a site, the resource unit allocation sub-field including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate a multi-resource unit (MRU) allocated to a corresponding site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indication; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indication is 80MHz where the 484-tone RU of the (996+484)-tone RU is located; or, the MRU indicated by the resource unit indication is a (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range indication is (996+484+242)-tone RU. The 242-tone RU in the RU is located in the 80MHz range; or, the MRU indicated by the resource unit indicator is a (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range is the 80MHz range where the 484-tone RU in the (3*996+484)-tone RU is located; the access point sends the trigger frame. 3. The method according to claim 1 or 2, wherein the resource unit allocation subfield occupies 9 bits. 4. The method according to claim 3, wherein the resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits. 5. The method according to claim 1 or 2, wherein the resource unit indicator includes an index, and the MRUThe correspondence between the number of indexes and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indexes; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indexes; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indexes. 6. The method according to claim 1 or 2, characterized in that the resource unit indicator includes an index, the index being used to indicate the size of the MRU allocated to the site, wherein the index belongs to the following index range: index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU allocated to the site is (996 + 484)-tone RU; index "96-99", wherein any one of the indices "96-99" is used to indicate that the MRU allocated to the site is (996 + 484 + 242)-tone RU; or, index "105-106", wherein any one of the indices "105-106" is used to indicate that the MRU allocated to the site is (3*996 + 484)-tone RU. 7. A communication apparatus, characterized in that it comprises: a processing unit, configured to determine a trigger frame; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation subfield for indicating resource allocation to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate a multi-resource unit (MRU) allocated to a corresponding site, the frequency band range indication is used to indicate the frequency band range where the smallest resource unit (RU) in the MRU is located; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indication is the 80MHz range where the 484-tone RU in the (996+484)-tone RU is located; or, the MRU indicated by the resource unit indication is a (996+484+242)-tone RU, and the frequency band range indication is the 242-tone RU in the (996+484+242)-tone RU is located. The 80MHz RU is located in; or, the resource unit indicates that the MRU is a (3*996+484)-tone RU, and the frequency band range indicates that the frequency band range is the 80MHz RU where the 484-tone RU is located in the (3*996+484)-tone RU; a communication unit, used to transmit the trigger frame. 8. A communication device, characterized in that it comprises:A communication unit is configured to receive trigger frames from an access point. The trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield indicating resource allocation to a site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the number of multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs. Specifically, the MRU indicated by the resource unit indicator is a (996+484)-tone RU, and the frequency band range indicator indicates the 80MHz range of the 484-tone RU within the (996+484)-tone RU; or, the MRU indicated by the resource unit indicator is a (996+484+242)-tone RU, and the frequency band range indicator indicates the 80MHz range of the 242-tone RU within the (996+484+242)-tone RU; or... The resource unit indication indicates that the MRU is a (3*996+484)-tone RU, and the frequency band indication indicates that the frequency band range is 80MHz, where the 484-tone RU is located in the (3*996+484)-tone RU; A processing unit is configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication. 9. The apparatus according to claim 7 or 8, wherein the resource unit allocation subfield occupies 9 bits. 10. The apparatus according to claim 9, wherein the resource unit indication occupies 7 bits, and the frequency band range indication occupies 2 bits. 11. The apparatus according to claim 7 or 8, wherein the resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: the size of the MRU is (996+484)-tone RU, corresponding to 2 indexes; the size of the MRU is (996+484+242)-tone RU, corresponding to 4 indexes; the size of the MRU is (3*996+484)-tone RU, corresponding to 2 indexes. 12. The apparatus according to claim 7 or 8, wherein the resource unit indicator includes an index, the index being used to indicate the size of the MRU allocated to the site, wherein the index is one of the following plurality of indexes: index "94-95", wherein any one of indexes "94-95" is used to indicate that the MRU allocated to the site is (996+484)-tone RU;Index “96-99”, wherein any one of the indices “96-99” is used to indicate that the MRU allocated to the site is (996 +484+242)-tone RU; or, index “105-106”, wherein any one of the indices “105-106” is used to indicate that the MRU allocated to the site is (3*996+484)-tone RU. 13. A communication apparatus, characterized in that it comprises a processor, the processor being configured to execute instructions in a memory to cause the communication apparatus to perform the following method: receiving a trigger frame from an access point; the trigger frame comprising a public information field and a user information list field, the user information list field comprising one or more user information fields, the one or more user information fields comprising a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield comprising a frequency band range indication and a resource unit indication; the resource unit indication indicating a multi-resource unit (MRU) allocated to the site, the frequency band range indication indicating the frequency band range of the smallest resource unit (RU) among the MRUs; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indication indicating the frequency band range is 80 MHz of the 484-tone RU among the (996+484)-tone RUs; or, the MRU indicated by the resource unit indication is a (996+484+242)-tone RU. RU, wherein the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, the MRU indicated by the resource unit indicator is the (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 484-tone RU is located in the (3*996+484)-tone RU; the allocated MRU is determined according to the frequency band range indicator and the resource unit indicator. 14. The apparatus according to claim 13, wherein the resource unit allocation subfield occupies 9 bits. 15. The apparatus according to claim 14, wherein the resource unit indicator occupies 7 bits and the frequency band range indicator occupies 2 bits. 16. The apparatus according to any one of claims 13 to 15, wherein the resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: the size of the MRU is (996+484)-tone RU, corresponding to 2 indexes; the size of the MRU is (996+484+242)-tone RU, corresponding to 4 indexes; the size of the MRU is (3*996+484)-tone RU, corresponding to 2 indexes.17. The apparatus according to any one of claims 13 to 15, characterized in that the resource unit indicator includes an index for indicating the size of the MRU allocated to the site, wherein the index belongs to the following index range: index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU allocated to the site is (996 + 484)-tone RU; index "96-99", wherein any one of the indices "96-99" is used to indicate that the MRU allocated to the site is (996 + 484 + 242)-tone RU; or, index "105-106", wherein any one of the indices "105-106" is used to indicate that the MRU allocated to the site is (3*996+484)-tone RU. 18. A communication device, characterized in that it comprises a processor, the processor being configured to execute instructions in a memory to cause the communication device to perform the following method: determining a trigger frame; the trigger frame comprising a common information field and a user information list field, the user information list field comprising one or more user information fields, the one or more user information fields comprising a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield comprising a frequency band range indication and a resource unit indication; the resource unit indication indicating a multi-resource unit (MRU) allocated to a corresponding site, the frequency band range indication indicating the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indication; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indication is 80MHz of the 484-tone RU among the (996+484)-tone RUs; or, the MRU indicated by the resource unit indication is a (996+484+242)-tone RU. RU, wherein the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, the MRU indicated by the resource unit indicator is the (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 484-tone RU is located in the (3*996+484)-tone RU; The trigger frame is transmitted. 19. The apparatus according to claim 18, wherein the resource unit allocation subfield occupies 9 bits. 20. The apparatus according to claim 19, wherein the resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.21. The apparatus according to any one of claims 18 to 20, wherein the resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: the size of the MRU is (996+484)-tone RU, corresponding to 2 indexes; the size of the MRU is (996+484+242)-tone RU, corresponding to 4 indexes; the size of the MRU is (3*996+484)-tone RU, corresponding to 2 indexes. 22. The apparatus according to any one of claims 18 to 20, wherein the resource unit indicator includes an index for indicating the size of an MRU allocated to a site, wherein the index belongs to the following index ranges: index "94-95", wherein any one of indexes "94-95" indicates that the MRU allocated to the site is (996 + 484)-tone RU; index "96-99", wherein any one of indexes "96-99" indicates that the MRU allocated to the site is (996 + 484 + 242)-tone RU; or, index "105-106", wherein any one of indexes "105-106" indicates that the MRU allocated to the site is (3*996 + 484)-tone RU. 23. A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store instructions, which, when executed, cause the following method to be implemented: receiving a trigger frame from an access point; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate a multi-resource unit (MRU) allocated to the site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indication is 80MHz, where the 484-tone RU of the (996+484)-tone RU is located; or, The resource unit indicator indicates that the MRU is (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, the resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the MRU is (996+484+242)-tone RU.The frequency band range is 80MHz, where the 484-tone RU is located in the (3*996+484)-tone RU; the assigned MRU is determined according to the frequency band range indication and the resource unit indication. 24. A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store instructions, which, when executed, cause the following method to be implemented: determining a trigger frame; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate a multi-resource unit (MRU) allocated to a corresponding site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indication; wherein, the MRU indicated by the resource unit indication is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indication is 80MHz of the 484-tone RU among the (996+484)-tone RUs; or, the MRU indicated by the resource unit indication is a (996+484+242)-tone RU. RU, wherein the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, the MRU indicated by the resource unit indicator is the (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 484-tone RU is located in the (3*996+484)-tone RU; transmit the trigger frame. 25. The medium according to claim 23 or 24, wherein the resource unit allocation subfield occupies 9 bits. 26. The medium according to claim 25, wherein the resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits. 27. The medium according to claim 23 or 24, wherein the resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: the size of the MRU is (996+484)-tone RU, corresponding to 2 indexes; the size of the MRU is (996+484+242)-tone RU, corresponding to 4 indexes; the size of the MRU is (3*996+484)-tone RU, corresponding to 2 indexes. 28. The medium according to any one of claims 23 or 24, wherein the resource unit indicator includes an index, the index indicating the size of the MRU allocated to the site, wherein the index belongs to the following index range:Index “94-95”, wherein any one of indexes “94-95” is used to indicate that the MRU allocated to the site is (996 +484)-tone RU; Index “96-99”, wherein any one of indexes “96-99” is used to indicate that the MRU allocated to the site is (996 +484+242)-tone RU; or, Index “105-106”, wherein any one of indexes “105-106” is used to indicate that the MRU allocated to the site is (3*996+484)-tone RU. Claims 5 / 5 Page 6 CN 121057024 A Resource Unit Indication Method, Access Point and Site

[0001] This application is a divisional application, the original application number is 202110009966.1, the original application date is January 5, 2021, and the entire contents of the original application are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a resource unit indication method, access point, and station. Background Art

[0003] In traditional Wireless Local Area Networks (WLANs), when a non-access point station (non-AP STA) needs to send uplink data, it will occupy the entire channel for data transmission through contention, which greatly reduces the frequency utilization efficiency. In order to improve this situation, the wireless channel is divided into multiple sub-channels (subcarriers) in the frequency domain to form resource units (RUs). User data is carried on some resource units instead of occupying the entire channel, thereby enabling multiple users to transmit in parallel at the same time in each time period without queuing or competing with each other, thus improving the frequency utilization efficiency.

[0004] In the downlink, the access point (AP) can decide the allocation of RUs according to the priority of the downlink data of each non-access point station, but in the uplink, the AP needs to inform the terminal device of the allocated resource units through a trigger frame. The trigger frame includes multiple user information fields. Each user information field contains information that a station needs to read. For example, M user information fields represent the information that non-access point stations 1 to M need to read. The resource unit allocation subfield within the user information fields indicates the resource unit allocated to each non-access point station. Furthermore, the non-access point station can send data packets on the allocated resource unit. However, since some non-access point stations need to send large amounts of data, they also need to allocate a large number of resource units. Therefore, how to utilize the resource unit allocation subfield to allocate multiple resource units to the corresponding non-access point stations is a problem that urgently needs to be solved.

[0005] This application provides a resource unit indication method, an access point, and a site, which can allocate multiple resource units to a corresponding non-access point site.

[0006] In a first aspect, this application provides a resource unit indication method, in which a site receives a trigger frame from an access point; the trigger frame includes a resource unit allocation subfield for indicating resource allocation to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range where the smallest resource unit (RU) in the MRU is located; furthermore, the site can determine the allocated MRU based on the resource unit indication and the frequency band range indication.

[0007] It can be seen that this method can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve frequency band utilization. In addition, the frequency band range indicated by the frequency band range indication is the frequency band range where the smallest RU in the MRU is located. Compared with the frequency band range indication, which only indicates the lowest frequency band range related to the MRU, the frequency band range indication described in this application carries more information, thereby saving the number of indexes required by the resource unit indication to indicate each MRU.

[0008] In one embodiment, in this resource unit indication method, the frequency band range indicator is used to indicate the 80MHz range where the smallest RU in the MRU is located. That is, the granularity of the frequency band range where the smallest RU in the MRU indicated by the frequency band range indicator is 80MHz (page 1 / 75 of the specification, CN 121057024 A). In this embodiment, the frequency band range indicator can determine the 80MHz position where the smallest RU in the MRU is located. Thus, the resource unit indicator can indicate the corresponding MRU under this condition, which is beneficial for reducing the number of indexes required for the resource unit indicator for the same number of MRUs.

[0009] In another embodiment, in this resource unit indication method, the frequency band range indicator is used to indicate the 40MHz range where the smallest RU in the MRU is located. That is, the granularity of the frequency band range where the smallest RU in the MRU indicated by the frequency band range indicator is 40MHz. In this embodiment, the frequency band range indicator can determine the location of the smallest RU in the MRU within a 40MHz range. Thus, the resource element indicator can indicate the corresponding MRU under this condition, which helps reduce the number of indexes required for the resource element indicator for the same number of MRUs.

[0010] Wherein, for the smallest RU in the MRU being a RU comprising 996 subcarriers (996-tone RU), the 40MHz indicated by the frequency band range indicator can be one of the two 40MHz ranges covered by the 996-tone RU, or predefined as the lowest frequency 40MHz of the two 40MHz ranges covered by the 996-tone RU, or predefined as the 40MHz range covered by the 996-tone RU.The 40MHz with the highest frequency of the two 40MHz ranges.

[0011] In addition, if there are multiple smallest RUs in the MRU, the frequency band range indicator can indicate the frequency band range where one of the smallest RUs is located.

[0012] In another embodiment, the frequency band range indicator is used to indicate 160MHz where the smallest RU in the MRU is located. In another embodiment, the frequency band range indicator is used to indicate 240MHz where the smallest RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate 320MHz where the smallest RU in the MRU is located.

[0013] In this document, the frequency band range indicated by the frequency band range indicator actually refers to which frequency band range in the bandwidth, or the position of that frequency band range in the bandwidth. For example, the 80MHz indicated by the above frequency band range indicator is actually an 80MHz in the bandwidth, or actually the position of that 80MHz in the bandwidth.

[0014] In this application, the MRU may include, but is not limited to, the following:

[0015] The MRU indicated by the resource element indicator includes a resource element with a size of 26 subcarriers (26-tone RU) and a resource element with a size of 52 subcarriers (52-tone RU), and the frequency band range indicated by the frequency band range is the frequency band range where the 26-tone RU is located; or

[0016] The MRU indicated by the resource element indicator includes an RU with a size of 106 subcarriers (106-tone RU) and a 26-tone RU, and the frequency band range indicated by the frequency band range is the frequency band range where the 26-tone RU is located; or

[0017] The MRU indicated by the resource element indicator includes a resource element with a size of 484 subcarriers (484-tone RU) and a resource element with a size of 242 subcarriers (242-tone RU), and the frequency band range indicated by the frequency band range is 242-tone. The frequency band range where the RU is located; or

[0018] The MRU indicated by the resource element indicator includes a resource element (996-tone RU) with a size of 996 subcarriers and a 484-tone RU, and the frequency band range indicated by the frequency band range is the frequency band range where the 484-tone RU is located; or

[0019] The MRU indicated by the resource element indicator includes two 996-tone RUs and a 484-tone RU, and the frequency band range indicated by the frequency band range is the frequency band range where the 484-tone RU is located; or

[0020] The MRU indicated by the resource element indicator includes three 996-tone RUs, and the frequency band range indicated by the frequency band range is the frequency band range where one of the 996-tone RUs is located; or

[0021] The MRU indicated by the resource element indicator includes three 996-tone RUs and a 484-tone RU.RU, the frequency band range indicator indicates that the frequency band range indicated is the frequency band range where the 484-tone RU is located; or

[0022] the resource unit indicator indicates that the MRU includes a 996-tone RU, a 484-tone RU and a 242-tone RU, the frequency band range indicator indicates that the frequency band range indicated is the frequency band range where the 242-tone RU is located. Specification 2 / 75 pages 8 CN 121057024 A tone RU, the frequency band range indicator indicates that the frequency band range indicated is the frequency band range where the 242-tone RU is located.

[0023] For (3*996+484)-tone RU, the resource unit indication method described in this aspect is adopted. The frequency band range indicated by the frequency band range indicator is 80MHz where the 484-tone RU is located. The (3*996+484)-tone RU indicated by the resource unit indicator only needs two indices to indicate one position of the 484-tone RU in the 80MHz, so as to inform the station of the (3*996+484)-tone RU that has been assigned. Alternatively, the frequency band range indicated by the frequency band range indicator is 40MHz where the 484-tone RU is located. The (3*996+484)-tone RU indicated by the resource unit indicator only needs one index to inform the station of the (3*996+484)-tone RU that has been assigned. The frequency band range indicated by the frequency band range indication is the lowest 80MHz resource unit indication method related to the (3*996+484)-tone RU. Therefore, the resource unit indication needs to indicate 8 indices respectively to inform the site of the (3*996+484)-tone RU allocated to it. Thus, the resource unit indication method described in this aspect is advantageous in reducing the number of indices required for resource unit indication.

[0024] In a second aspect, this application also provides a resource unit indication method, which corresponds to the resource unit indication method described in the first aspect and is explained from the perspective of the access point. In this method, the access point determines a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating resource allocation to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indication is used to indicate the frequency band range where the smallest resource unit RU in the MRUs is located; the access point sends the trigger frame.

[0025] As can be seen, this method can allocate MRUs to sites, making MRU allocation more flexible and helping to improve bandwidth utilization. Furthermore, when an access point needs to allocate MRUs to a site, a bandwidth range indicator can be used to indicate the bandwidth range where the smallest RU in the MRU is located. Under this condition, the index to be indicated by the resource unit indicator is then determined. Compared to the bandwidth range indicator, which only indicates the lowest bandwidth range related to the MRU, the bandwidth range indicator described in this application carries more information, such as the location of the smallest RU.The frequency band range is thus reduced, which helps to save the number of indexes required for the resource unit indication to indicate each MRU.

[0026] Other related embodiments of the resource unit indication method can be found in the related embodiments of the first aspect above, and will not be described in detail here.

[0027] In a third aspect, this application also provides a resource unit indication method, which may include: a station receiving a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the station, the resource unit subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the station, and the frequency band range indication is used to indicate the frequency band range where the MRU is located; the station determines the allocated MRU according to the frequency band range indication and the resource unit indication.

[0028] It can be seen that this method can allocate MRUs to the station, making the allocation of MRUs more flexible and helping to improve the frequency band utilization.

[0029] Furthermore, when a station determines the allocated RU / MRU based on the frequency band range indication and resource unit indication, it can determine the size of the allocated MRU based on the resource unit indication, determine the frequency band range where the RU / MRU is located based on the frequency band range indication, and then determine the RU / MRU corresponding to the index indicated by the resource unit indication within that frequency band range. It is evident that in this method, the resource unit indication only needs to indicate the RU / MRU within that frequency band range, reducing the number of indices required for the resource unit indication to indicate an MRU of that size. In other words, the frequency band range indication can carry more information and simplify the logic of the resource unit indication as much as possible, which helps to reduce the processing complexity of the station.

[0030] In this resource unit indication method, the MRUs that can be allocated to a site include, but are not limited to, the following: an MRU comprising a resource unit with a size of 26 subcarriers (26-tone RU) and a resource unit with a size of 52 subcarriers (52-tone RU) (denoted as (52+26)-tone RU); or an MRU comprising a RU with a size of 106 subcarriers (106-tone RU) and a 26-tone RU (denoted as (106+26)-tone RU); or an MRU comprising a resource unit with a size of 484 subcarriers (484-tone RU) and a resource unit with a size of 242 subcarriers (denoted as (484+242)-tone RU); or an MRU comprising a resource unit with a size of 996 subcarriers (996-tone RU) and a 484-tone RU. The MRU of a RU (denoted as (996+484)-tone RU); or the MRU comprising two 996-tone RUs and one 484-tone RU (denoted as (2*996+484)-tone RU).RU); or an MRU consisting of three 996-tone RUs (denoted as 3*996-tone RU); or an MRU consisting of three 996-tone RUs and one 484-tone RU (denoted as (3*996+484)-tone RU); or an MRU consisting of one 996-tone RU, one 484-tone RU and one 242-tone RU (denoted as (996+484+242)-tone RU).

[0031] In this resource unit indication method, when the frequency band range of the MRU indicated by the resource unit indication is less than or equal to 80MHz, the frequency band range indicated by the frequency band range indication is 80MHz in the bandwidth;

[0032] When the frequency band range of the MRU indicated by the resource unit indication is greater than 80MHz and less than or equal to 160MHz, the frequency band range indicated by the frequency band range indication is 160MHz in the bandwidth;

[0033] When the frequency band range of the MRU indicated by the resource unit indication is greater than 160MHz and less than or equal to 240MHz, the frequency band range indicated by the frequency band range indication is 240MHz or 320MHz in the bandwidth;

[0034] When the frequency band range of the MRU indicated by the resource unit indication is greater than 240MHz and less than or equal to 320MHz, the frequency band range indicated by the frequency band range indication is 320MHz in the bandwidth.

[0035] In one embodiment, the resource unit allocation subfield occupies 9 bits; the frequency band range indicator occupies bits 0 to 1 of the 9 bits, and the resource unit indicator occupies bits 2 to 8.

[0036] In one embodiment, if the bandwidth is 320MHz, and if the frequency band range indicated by the frequency band range indicator is one 80MHz in 320MHz, then the frequency band range indicator can use four states represented by bits 0 and 1 to indicate four 80MHz in 320MHz respectively; if the frequency band range indicated by the frequency band range indicator is the lowest frequency 160MHz or the highest frequency 160MHz in 320MHz, then the frequency band range indicator can use two states represented by bits 0 or 1 to indicate the two 160MHz in 320MHz respectively; if the frequency band range indicated by the frequency band range indicator is 320MHz, then the frequency band range indicator may not limit the states of bits 0 and 1 to indicate 320MHz.

[0037] In another embodiment, if the frequency band range indicated by the frequency band range indicator is the lowest frequency 240MHz or the highest frequency 240MHz in 320MHz, then the frequency band range indicator can use two states represented by bit 0 or bit 1 to respectively indicate the two 240MHz in 320MHz.

[0038] In a fourth aspect, this application also provides a resource unit indication method, which is the same as the resource unit indication method described in the third aspect.The corresponding unit indication method is described from the perspective of the access point. The resource unit indication method described in this aspect includes: the access point determining a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating resource allocation to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site; the frequency band range indication is used to indicate the frequency band range where the MRU is located; the access point sends the trigger frame.

[0039] It can be seen that this method can allocate MRUs to sites, making MRU allocation more flexible and helping to improve frequency band utilization.

[0040] In addition, when the access point allocates an MRU to a corresponding site, it can use the frequency band range indication to indicate the frequency band range where the MRU is located, and then determine the index required for the resource unit indication within this frequency band range to inform the site of the allocated MRU. It can be seen that in this method, the resource unit indication only needs to indicate the RU / MRU within the frequency band range, reducing the number of indices required for the resource unit indication to indicate an MRU of this size. In other words, the frequency band range indication in this method can carry more information, and it also simplifies the indication logic of the frequency band range indication and resource unit indication as much as possible, which is beneficial to reducing the processing complexity of the site.

[0041] Other related embodiments of this resource unit indication method can be found in the related embodiments of the third aspect above, which will not be described in detail here.

[0042] In a fifth aspect, this application also provides a site receiving a trigger frame from an access point; the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs other than the MRU are located in the bandwidth; the site determines the allocated MRU according to the frequency band range indication and the resource unit indication.

[0043] It can be seen that this method can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve the frequency band utilization. Furthermore, since the frequency band range indicated by the frequency band range indicator is the frequency band range where some or all RUs are located except for the MRU indicated by the resource element indicator; or, the frequency band range indicated by the frequency band range indicator is the frequency band range other than the MRU indicated by the resource element indicator, that is, the MRU to be indicated by the resource element indicator is determined from a frequency band range smaller than the bandwidth, compared with the MRU to be indicated by the resource element indicator being determined from a frequency band range corresponding to the bandwidth, it is advantageous to reduce the number of indices to be indicated by the resource element indicator.

[0044] In one embodiment, the MRU indicated by the resource element indicator includes three resource elements (996-tone) with a size of 996 subcarriers.The frequency band range indicator (denoted as 3*996-tone RU) indicates the frequency band range of the bandwidth, which is either 80MHz containing one 996-tone RU other than the 3*996-tone RU, or the frequency band range indicator indicates the frequency band range of the bandwidth other than the 3*996-tone RU. Therefore, in this embodiment, when the resource unit indicator is used to indicate a 3*996-tone RU, only one index is needed, and the station can determine the assigned MRU by combining this frequency band range indicator.

[0045] The frequency band range indicated by the frequency band range indicator is the lowest 80MHz of the bandwidth related to 3*996-tone RUs. Since the lowest 80MHz of the bandwidth related to 3*996-tone RUs is determined, there are three possible combinations of 3*996-tone RUs (i.e., selecting two 996-tone RUs from the three 80MHz ranges other than the lowest 80MHz, resulting in three combinations). Therefore, the resource unit indicator needs to indicate one of the three indices corresponding to these three combinations in order to uniquely inform the site of the assigned MRU. Therefore, the meaning of the frequency band range indicator described in this application is beneficial in saving the number of indices required for the resource unit indicator.

[0046] In a sixth aspect, this application also provides a resource unit indicator method, which corresponds to the resource unit indicator method described in the fifth aspect above and is explained from the perspective of the access point. The method includes: an access point determining a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating resource allocation to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs, excluding the MRUs, are located in the bandwidth; the access point sends the trigger frame.

[0047] It can be seen that this method can allocate MRUs to sites, making the allocation of MRUs more flexible and helping to improve frequency band utilization. In addition, since the frequency band range indicated by the frequency band range indication is the frequency band range in which some or all of the RUs, excluding the MRUs indicated by the resource unit indication, are located; or, the frequency band range indicated by the frequency band range indication is the frequency band range excluding the MRUs indicated by the resource unit indication, that is, the MRUs to be indicated by the resource unit indication are determined from a frequency band range smaller than the bandwidth, compared with the MRUs to be indicated by the resource unit indication being determined from a frequency band range corresponding to the bandwidth, it is beneficial to reduce the number of indices to be indicated by the resource unit indication.

[0048] Other related embodiments of this resource unit indication method can be found in the related embodiments in the fifth aspect above, and will not be described in detail here. Specification 5 / 75 pages 11 CN 121057024 A

[0049] In a seventh aspect, this application also provides a resource unit indication method, the method comprising: a station receiving a trigger frame from an access point; the trigger frame including a resource unit allocation subfield for indicating resource allocation to the station, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the frequency band range indication indicating a frequency band range in the bandwidth; the resource unit indication indicating a MRU allocated to the station, the MRU including the remaining resource unit RUs in the bandwidth excluding the frequency band range indicated by the frequency band range indication; the station determining the allocated MRUs based on the frequency band range indication and the resource unit indication.

[0050] It can be seen that this method can allocate MRUs to the station, making the allocation of MRUs more flexible and helping to improve the frequency band utilization. In addition, since the MRUs indicated by the resource unit indication are a combination of the remaining RUs in the bandwidth excluding the frequency band range indicated by the frequency band range indication, compared with the MRUs required to be indicated by the resource unit indication being determined from the frequency band range corresponding to the bandwidth, it is beneficial to reduce the number of indices required to be indicated by the resource unit indication.

[0051] In one embodiment, the MRU indicated by the resource unit indicator includes three resource units (996-tone RUs) with a size of 996 subcarriers (denoted as 3*996-tone RUs), and the frequency band range indicated by the frequency band range is an 80MHz segment of the bandwidth. Therefore, the 3*996-tone RUs include the remaining three 996-tone RUs in the bandwidth excluding the 80MHz segment. It can be seen that in this embodiment, only one index is needed when the resource unit indicator indicates the 3*996-tone RUs. Compared to the case where the frequency band range indicated by the frequency band range is the lowest 80MHz segment of the bandwidth associated with the 3*996-tone RUs, this application is advantageous in saving the number of indexes required for the resource unit indicator.

[0052] In an eighth aspect, this application also provides a resource unit indicator method, which corresponds to the resource unit indicator method described in the seventh aspect above, and is explained from the perspective of the access point. The method includes: an access point determining a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating resource allocation to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the frequency band range indication is used to indicate a frequency band range in the bandwidth, the resource unit indication is used to indicate the MRU allocated to the corresponding site, the MRU including the remaining resource unit RUs in the bandwidth excluding the frequency band range indicated by the frequency band range indication; the access point sending the trigger frame.

[0053] Since the MRU indicated by the resource unit indication is a combination of the remaining RUs in the bandwidth excluding the frequency band range indicated by the frequency band range indication, compared with the MRUs required to be indicated by the resource unit indication being determined from the frequency band range corresponding to the bandwidth, it is beneficial to reduce the number of indices required to be indicated by the resource unit indication.

[0054] Other related implementations of the resource unit indication method can be found in the related implementations in the seventh aspect above, and will not be described in detail here.

[0055] In addition, in the first to eighth aspects above, the resource unit allocation subfield occupies N bits, and the number of bits occupied by the frequency range indication is determined based on the bandwidth and the frequency range indicated by the frequency range indication. For example, the frequency band range indication occupies bits 0 to bit x, and the resource unit indication occupies bits x+1 to bit N; the value of x is related to the bandwidth and the frequency band range indicated by the frequency band range indication; N and x are both greater than zero.

[0056] In a ninth aspect, this application also provides a resource unit indication method, the method comprising: a station receiving a trigger frame from an access point; the trigger frame including a resource unit allocation subfield for indicating resource allocation to the station, the resource unit allocation subfield occupying N bits, the index indicated by the N bits representing the absolute position of a multiple resource unit (MRU) in the bandwidth; N being greater than zero; the station determining the MRU corresponding to the index indicated by the N bits as the MRU allocated to the station.

[0057] As can be seen, in this resource unit indication method, the resource unit allocation subfield does not distinguish the bits specifically used to indicate a certain frequency band range. The corresponding MRU can be directly found according to the index indicated by the N bits in the resource unit allocation subfield, which greatly simplifies the processing logic and helps to reduce the processing complexity of the site.

[0058] In one embodiment, N equals 9. Specification page 6 / 75 12 CN 121057024 A

[0059] The N bits are used to indicate the absolute position of the MRU in the bandwidth, including one or more of the following:

[0060] An MRU including the first resource unit (996-tone RU) of size 996 subcarriers and the second 996-tone RU in 320MHz, or an MRU including the third 996-tone RU and the fourth 996-tone RU in 320MHz; or,

[0061] An MRU including the first to the fourth 996-tone RU in 320MHz; or,

[0062] An MRU including the second resource unit (52-tone RU) of size 52 subcarriers and the second resource unit (26-tone RU) of size 26 subcarriers in any 20MHz in 320MHz, or an MRU including the third 52-tone RU in any 20MHz in 320MHz. The MRU comprising the RU and the eighth 26-tone RU, or the MRU comprising the second 52-tone RU and the fifth 26-tone RU in any 20MHz of 320MHz; or,

[0063] the first resource element (106-tone RU) of size 106 subcarriers in any 20MHz of 320MHz.The MRU includes a first or second resource element (242-tone RU) and a second resource element (484-tone RU) of size 242 subcarriers in any 80MHz of 320MHz, or the MRU includes a third or fourth 242-tone RU and a first 484-tone RU in any 80MHz of 320MHz; or the MRU includes a first or second 484-tone RU and a second resource element (996-tone RU) of size 996 subcarriers in any 160MHz of 320MHz, or the MRU includes a third or fourth 484-tone RU and a second 996-tone RU in any 160MHz of 320MHz. The MRU of the RU; or,

[0066] including the first or second 484-tone RU and the second and third 996-tone RUs in the lowest 240MHz of 320MHz, or including the third or fourth 484-tone RU and the first and third 996-tone RUs in the lowest 240MHz of 320MHz, or including the fifth or sixth 484-tone RU and the first and second 996-tone RUs in the lowest 240MHz of 320MHz; or,

[0067] including the first or second 484-tone RU and the second and third 996-tone RUs in the highest 240MHz of 320MHz, or including the third or fourth 484-tone RU and the first and third 996-tone RUs in the highest 240MHz of 320MHz. The MRU of the RU, or the MRU comprising the fifth or sixth 484-tone RU and the first or second 996-tone RU in the highest 240MHz frequency range of 320MHz; or,

[0068] the MRU comprising the first or second 484-tone RU and the second, third, or fourth 996-tone RU in 320MHz, or the MRU comprising the third or fourth 484-tone RU and the first, third, or fourth 996-tone RU in 320MHz, or the MRU comprising the fifth or sixth 484-tone RU and the first, second, or fourth 996-tone RU in 320MHz, or the MRU comprising the seventh or eighth 484-tone RU in 320MHz.The MRU includes the first, second, and third 996-tone RUs; or,

[0069] the MRU includes three 996-tone RUs in 320MHz; or,

[0070] the MRU includes the first or second 242-tone RU and the second 484-tone RU and the second 996-tone RU in the lowest 160MHz of 320MHz, or the MRU includes the third or fourth 242-tone RU and the first 484-tone RU and the second 996-tone RU in the lowest 160MHz of 320MHz, or the MRU includes the fifth or sixth 242-tone RU and the fourth 484-tone RU and the first 996-tone RU in the lowest 160MHz of 320MHz, or the MRU includes the seventh or eighth 242-tone RU and the third 484-tone RU and the first 996-tone RU in the lowest 160MHz of 320MHz. MRU of RU; or,

[0071] MRU including the first or second 242-tone RU and the second 484-tone RU and the second 996-tone RU in the highest 160MHz of 320MHz, or MRU including the third or fourth 242-tone RU and the first 484-tone RU and the second 996-tone RU in the highest 160MHz of 320MHz, or MRU including the fifth or sixth 242-tone RU and the fourth 484-tone RU and the first 996-tone RU in the highest 160MHz of 320MHz, or MRU including the seventh or eighth 242-tone RU and the third 484-tone RU and the first 996-tone RU in the highest 160MHz of 320MHz.

[0072] In a tenth aspect, this application also provides a resource unit indication method, which corresponds to the resource unit indication method described in the ninth aspect above, and is explained from the perspective of the access point. The method includes: the access point determining a trigger frame; the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield occupying N bits, and an index indicated by the N bits directly representing the absolute position of a multiple resource unit (MRU) in the bandwidth; N is greater than zero; the access point sends the trigger frame.

[0073] As can be seen, in this resource unit indication method, the resource unit allocation subfield does not distinguish bits specifically used to indicate a certain frequency band range, and the corresponding index can be directly found according to the index indicated by the N bits in the resource unit allocation subfield.MRU, which greatly simplifies the processing logic and helps reduce the processing complexity of the site.

[0074] Other related embodiments of the resource unit indication method can be found in the related embodiments in the ninth aspect above, and will not be described in detail here.

[0075] In the eleventh aspect, this application also provides a communication device, which has some or all of the functions of the site in the method example described in the first aspect, third aspect, fifth aspect, seventh aspect, or ninth aspect above. For example, the function of the communication device may have some or all of the functions in the embodiments of this application, or it may have the function of implementing any one of the embodiments of this application alone. The function can be implemented by hardware, or it can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0076] In one possible design, the structure of the communication device may include a processing unit and a communication unit. The processing unit is configured to support the communication device in performing the corresponding functions in the above methods. The communication unit is used to support communication between the communication device and other devices. The communication device may also include a storage unit, which is used to couple with the processing unit and the sending unit, and stores the necessary program instructions and data of the communication device.

[0077] In one embodiment, the communication device implements the relevant functions of the site in the first aspect. The communication device includes:

[0078] a communication unit, configured to receive a trigger frame from an access point;

[0079] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range where the smallest resource unit (RU) among the MRUs indicated by the resource unit indication is located;

[0080] a processing unit, configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication.

[0081] As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

[0082] In another embodiment, the communication device implements the relevant functions of the site in the third aspect. The communication device includes:

[0083] a communication unit, configured to receive a trigger frame from an access point;

[0084] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range in which the MRU is located;

[0085] a processing unit, configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication. (Specification 8 / 75 pages 14 CN)121057024 A

[0086] In another embodiment, the communication device implements the relevant functions of the site in the fifth aspect, and the communication device includes:

[0087] a communication unit, configured to receive a trigger frame from an access point;

[0088] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs other than the MRUs are located in the bandwidth;

[0089] a processing unit, configured to determine the allocated MRUs according to the frequency band range indication and the resource unit indication.

[0090] In another embodiment, the communication device implements the site-related functions in the seventh aspect. The communication device includes:

[0091] a communication unit, configured to receive a trigger frame from an access point;

[0092] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the frequency band range indication is used to indicate a frequency band range in the bandwidth; the resource unit indication is used to indicate an MRU allocated to the site, the MRU including the remaining resource units RU in the bandwidth excluding the frequency band range indicated by the frequency band range indication;

[0093] a processing unit, configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication.

[0094] In other embodiments, the communication device may also implement the site-related functions in other aspects, which will not be detailed here.

[0095] In one embodiment, the communication device implements the site-related functions of the first aspect, and may include:

[0096] a transceiver, configured to receive a trigger frame from an access point;

[0097] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, the frequency band range indication is used to indicate the frequency band range where the smallest resource unit RU in the MRUs indicated by the resource unit indication is located;

[0098] a processor, configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication.

[0099] In another embodiment, the communication device implements the site-related functions of the third aspect, and the communication device includes:

[0100] a transceiver, configured to receive a trigger frame from an access point;

[0101] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the frequency band range where the smallest resource unit RU in the MRUs indicated by the resource unit indication is located;

[0098] a processor, configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication.The site has a multi-resource unit (MRU), and the frequency band range indicator is used to indicate the frequency band range where the MRU is located;

[0102] A processor is used to determine the allocated MRU according to the frequency band range indicator and the resource unit indicator.

[0103] In other embodiments, the communication device may also implement the site-related functions in other aspects, which will not be described in detail here.

[0104] In a twelfth aspect, this application also provides a communication device having some or all of the functions of an access point in the method examples of the second, fourth, sixth, eighth, or tenth aspects described above. For example, the communication device may have the functions in some or all of the embodiments in this application, or it may have the functions of implementing any one embodiment in this application alone. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0105] In one possible design, the structure of the communication device may include a processing unit and a communication unit, the processing unit being configured to support the communication device in performing the corresponding functions in the above methods. The communication unit is used to support communication between the communication device and other devices. The communication device may also include a storage unit, which is coupled to the processing unit and the transmitting unit, and stores the necessary program instructions and data of the communication device.

[0106] In one embodiment, the communication device implements the related functions of the access point in the second aspect. The communication device includes:

[0107] a processing unit, used to determine a trigger frame;

[0108] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit allocation subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site. The frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indication;

[0109] a communication unit, used to transmit the trigger frame.

[0110] In another embodiment, the communication device implements the related functions of the access point in the fourth aspect, and the communication device includes:

[0111] a processing unit, configured to determine a trigger frame;

[0112] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site; the frequency band range indication is used to indicate the frequency band range where the MRU is located;

[0113] a communication unit, configured to send the trigger frame.

[0114] In another embodiment, the communication device implements the related functions of the access point in the sixth aspect, and the communication device includes:

[0115] a processing unit, configured to determine a trigger frame;

[0116] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs other than the MRUs are located in the bandwidth;

[0117] a communication unit, configured to send the trigger frame.

[0118] In another embodiment, the communication device implements the access point-related functions in the eighth aspect, and the communication device includes:

[0119] a processing unit, configured to determine a trigger frame;

[0120] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the frequency band range indication is used to indicate a frequency band range in the bandwidth, the resource unit indication is used to indicate the MRU allocated to the corresponding site, the MRU including the remaining resource units RU in the bandwidth other than the frequency band range indicated by the frequency band range indication;

[0121] a communication unit, configured to send the trigger frame.

[0122] As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

[0123] In other embodiments, the communication device may also implement the access point-related functions in other aspects, which will not be detailed here.

[0124] In one embodiment, the communication device implements the related functions of the access point in the second aspect, and may include:

[0125] a processor, configured to determine a trigger frame; Specification 10 / 75 pages 16 CN 121057024 A

[0126] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site, the frequency band range indication is used to indicate the frequency band range where the smallest resource unit (RU) in the MRUs indicated by the resource unit indication is located;

[0127] a transceiver, configured to transmit the trigger frame.

[0128] In one embodiment, the communication device implements the related functions of the access point in the fourth aspect, and may include:

[0129] a processor, configured to determine a trigger frame;

[0130] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the frequency band range where the smallest resource unit (RU) in the MRUs indicated by the resource unit indication is located;

[0127] a transceiver, configured to transmit the trigger frame.A site's multiple resource unit (MRU); the frequency band range indicator is used to indicate the frequency band range where the MRU is located;

[0131] A transceiver is used to transmit the trigger frame.

[0132] In another embodiment, the communication device implements the related functions of the access point in the sixth aspect, the communication device comprising:

[0133] a processor, used to determine a trigger frame;

[0134] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indicator and a resource unit indicator; the resource unit indicator is used to indicate the multiple resource unit (MRU) allocated to the corresponding site, the frequency band range indicator is used to indicate the frequency band range where some or all of the resource unit (RU) excluding the MRU is located in the bandwidth;

[0135] a transceiver is used to transmit the trigger frame.

[0136] In another embodiment, the communication device implements the access point-related functions in the eighth aspect, the communication device comprising:

[0137] a processor, configured to determine a trigger frame;

[0138] the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to a site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the frequency band range indication is used to indicate a frequency band range in the bandwidth, the resource unit indication is used to indicate the MRU allocated to the corresponding site, the MRU including the remaining resource units RU in the bandwidth excluding the frequency band range indicated by the frequency band range indication;

[0139] a transceiver, configured to transmit the trigger frame.

[0140] In other embodiments, the communication device may also implement the access point-related functions in other aspects, which will not be detailed here.

[0141] In specific implementation, the processor may be used to perform, for example, but not limited to, baseband-related processing, and the transceiver may be used to perform, for example, but not limited to, radio frequency transceiver. The above devices may be disposed on separate chips, or at least partially or entirely disposed on the same chip. For example, a processor can be further divided into analog baseband processors and digital baseband processors. Analog baseband processors can be integrated with transceivers on the same chip, while digital baseband processors can be located on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be integrated with multiple application processors (e.g., but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip can be called a system-on-a-chip (SoC). Whether the various devices are independently located on different chips or integrated on one or more chips often depends on the specific needs of the product design. This invention does not limit the specific implementation of the above-mentioned devices.

[0142] In a thirteenth aspect, this application also provides a processor for executing the first, third, and fifth aspects described above.The specification, pages 11 / 75, 17 CN 121057024, describes various methods of aspects A, the seventh aspect, or the ninth aspect, or various methods of aspects II, the fourth aspect, the sixth aspect, the eighth aspect, or the tenth aspect. In the process of executing these methods, the process of sending and receiving the aforementioned information can be understood as the process of the processor outputting the aforementioned information, and the process of the processor receiving the input information. Specifically, when outputting the aforementioned information, the processor outputs the aforementioned information to the transceiver so that the transceiver can transmit it. Furthermore, after the aforementioned information is output by the processor, it may need to undergo other processing before reaching the transceiver. Similarly, when the processor receives the input information, the transceiver receives the aforementioned information and inputs it to the processor. Furthermore, after the transceiver receives the aforementioned information, it may need to undergo other processing before being input to the processor.

[0143] Based on the above principles, for example, the receiving trigger frame mentioned in the aforementioned method can be understood as the processor inputting a trigger frame. For another example, sending a trigger frame can be understood as the processor outputting a trigger frame.

[0144] In this way, the transmission, receiving, and other operations involved in the processor, unless otherwise specified, or if they do not contradict their actual function or internal logic in the relevant description, can be more generally understood as processor output and receiving, input, and other operations, rather than transmission, receiving, and receiving operations directly performed by the radio frequency circuit and antenna.

[0145] In specific implementation, the processor mentioned above can be a processor specifically designed to execute these methods, or a processor that executes computer instructions in memory to execute these methods, such as a general-purpose processor. The memory mentioned above can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated with the processor on the same chip or can be set on different chips. The embodiments of this application do not limit the type of memory or the way the memory and processor are set.

[0146] In a fourteenth aspect, this application provides a computer-readable storage medium for storing computer software instructions for use in the aforementioned data transmission device, comprising a program for performing the methods described in the first, third, fifth, seventh, or ninth aspects, or a program for performing the methods described in the second, fourth, sixth, eighth, or tenth aspects.

[0147] In a fifteenth aspect, this application also provides a computer program product including instructions that, when run on a computer, cause the computer to perform the methods described in the first, third, fifth, seventh, or ninth aspects.The method, or causing a computer to perform the methods described in the second, fourth, sixth, eighth, or tenth aspects above.

[0148] In a sixteenth aspect, this application provides a chip system including a processor and an interface for supporting a data transmission device in implementing the functions involved in the first, third, fifth, seventh, or ninth aspects, such as determining or processing at least one of the data and information involved in the above methods, such as trigger frames. In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the site. The chip system may be composed of chips or may include chips and other discrete devices.

[0149] In a seventeenth aspect, this application provides a chip system including a processor and an interface for supporting a data transmission device in implementing the functions involved in the second, fourth, sixth, eighth, or tenth aspects, such as determining or processing at least one of the data and information involved in the above methods. In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the site. The chip system may be composed of chips or may include chips and other discrete devices. Specification 12 / 75 pages 18 CN 121057024 A Description of Drawings

[0150] Figure 1 is a schematic diagram of a network structure provided in an embodiment of this application;

[0151] Figure 2a is a schematic diagram of a 160MHz channel distribution provided in an embodiment of this application;

[0152] Figure 2b is a schematic diagram of a 320MHz channel distribution provided in an embodiment of this application;

[0153] Figure 3 is a schematic diagram of a subcarrier distribution in 80MHz provided in an embodiment of this application;

[0154] Figure 4 is a schematic diagram of an uplink transmission based on a trigger frame provided in an embodiment of this application;

[0155] Figure 5 is a schematic diagram of a frame structure of a trigger frame provided in an embodiment of this application;

[0156] Figure 6 is a flowchart of a resource unit indication method 110 provided in an embodiment of this application;

[0157] Figure 7 is a schematic diagram of a (52+26)-tone RU in 20MHz provided in an embodiment of this application;

[0158] Figure 8 is a schematic diagram of a (106+26)-tone RU in 20MHz provided in an embodiment of this application. Schematic diagram of RU;

[0159] Figure 9 is a schematic diagram of (484+242)-tone RU in 80MHz provided in an embodiment of this application;

[0160] Figure 10 is a schematic diagram of (996+484)-tone RU in 160MHz provided in an embodiment of this application;

[0161] Figure 11 is a schematic diagram of (2*996+484)-tone RU in 240MHz provided in an embodiment of this application;

[0162] Figure 12 is a schematic diagram of a 3*996-tone RU in 320MHz provided in an embodiment of this application;

[0163] Figure 13 is a schematic diagram of a (3*996+484)-tone RU in 320MHz provided in an embodiment of this application;

[0164] Figure 14 is a schematic diagram of a (484+242)-tone RU in 80MHz provided in an embodiment of this application;

[0165] Figure 15 is a flowchart of a resource unit indication method 120 provided in an embodiment of this application;

[0166] Figure 16 is a flowchart of a resource unit indication method 210 provided in an embodiment of this application;

[0167] Figure 17 is a flowchart of a resource unit indication method 220 provided in an embodiment of this application;

[0168] Figure 18 is a flowchart of a resource unit indication method 310 provided in an embodiment of this application;

[0169] Figure 19 is a flowchart of a resource unit indication method 410 provided in an embodiment of this application;

[0170] Figure 20 is a structural schematic diagram of a communication device 500 provided in an embodiment of this application;

[0171] Figure 21 is a structural schematic diagram of another communication device 600 provided in an embodiment of this application;

[0172] Figure 22 is a structural schematic diagram of a chip provided in an embodiment of this application. Detailed Description

[0173] The embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0174] Taking Figure 1 as an example, the network structure to which the resource unit indication method described in this application is applicable is illustrated. Figure 1 is a schematic diagram of a network structure provided in an embodiment of this application. This network structure may include one or more access point (AP) type stations and one or more non-access point type stations (non-AP STA). For ease of description, the access point type station is referred to as an access point (AP), and the non-access point type station is referred to as a station (STA). Figure 1 illustrates this network structure as including one AP and two stations (STA 1, STA 2).

[0175] The access point can be an access point for terminal devices (such as mobile phones) to access a wired (or wireless) network. It is mainly deployed in homes, buildings, and parks, with a typical coverage radius of tens to hundreds of meters. Of course, it can also be deployed outdoors. The access point acts as a bridge connecting wired and wireless networks, its main function being to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the access point can be a terminal device (such as a mobile phone) or a network device (such as a router) equipped with a wireless fidelity (WiFi) chip. The access point can be a device that supports the 802.11be standard. The access point can also support 802.11be, 802.11ax, and 802...Devices supporting various wireless local area network (WLAN) standards of the 802.11 family, including 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. The access point in this application can be a high-efficiency (HE) AP or an extra-high throughput (EHT) AP, or an access point compatible with a future generation of WiFi standards.

[0176] The site can be a wireless communication chip, a wireless sensor, or a wireless communication terminal, etc., and can also be referred to as a user. For example, the site can be a mobile phone supporting WiFi communication, a tablet computer supporting WiFi communication, a set-top box supporting WiFi communication, a smart TV supporting WiFi communication, a smart wearable device supporting WiFi communication, an in-vehicle communication device supporting WiFi communication, and a computer supporting WiFi communication, etc. Optionally, the site can support the 802.11be standard. The site can also support various wireless local area networks (WLAN) standards of the 802.11 family, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0177] The access point in this application can be a high-efficiency (HE) STA or an extrameally high-throughput (EHT) STA, or a STA applicable to a future generation of WiFi standard.

[0178] For example, the access point and site can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0179] Among them, 802.11n can also be called high throughput (HT), 802.11ac can also be called very high throughput (VHT), 802.11ax (Wi-Fi 6) can also be called high efficient (HE), and 802.11be (Wi-Fi 7) can also be called extremely high throughput (EHT). For standards prior to HT, such as 802....11a / b / g, etc., are collectively referred to as Non-HT (non-high throughput). Among them, 802.11b adopts a non-OFDM (Orthogonal Frequency Division Multiplexing) mode.

[0180] WLAN started from 802.11a / g, went through 802.11n, 802.11ac, and is now under discussion for 802.11ax and 802.11be. The allowed bandwidth and space-time stream number are shown in Table 1.

[0181] Table 1 Maximum allowed bandwidth and maximum transmission rate of various WLAN standards

[0182]

[0183] As shown in Table 1, as the bandwidth increases, the maximum data rate supported by data transmission also increases. Therefore, future WiFi standards will consider larger bandwidths than 160MHz (such as 240MHz, 320MHz).

[0184] Although the embodiments of this application are mainly described using a network deploying IEEE 802.11 as an example, those skilled in the art will readily understand that the various aspects involved in this application can be extended to other networks employing various standards or protocols, such as BLUETOOTH, high performance radio LAN (HIPERLAN) (a wireless standard similar to the IEEE 802.11 standard, mainly used in Europe), and wide area networks (WAN), wireless local area networks (WLAN), personal area networks (PAN), or other networks now known or developed in the future. Therefore, regardless of the coverage area and wireless access protocol used, the various aspects provided in this application can be applied to any suitable wireless network.

[0185] Next, to facilitate understanding of the relevant content of the embodiments of this application, some concepts involved in the embodiments of this application are explained.

[0186] 1. Channel Distribution Specification 14 / 75 pages 20 CN 121057024 A

[0187] In one embodiment, the bandwidth can be divided into multiple sub-channels, as shown in Figure 2a. Figure 2a is a channel distribution diagram provided by an embodiment of this application. As shown in Figure 2a, when the bandwidth is 160MHz, it can be divided into a primary 20MHz channel (or simply primary channel, Primary 20MHz, P20), a secondary 20MHz channel (Secondary 20MHz, S20), a secondary 40MHz channel (Secondary 40MHz, S40), and a secondary 80MHz channel (Secondary 80MHz, S80). In an optional embodiment, the signal...Channel 1 corresponds to the primary 20MHz channel, channel 2 corresponds to the secondary 20MHz channel, channels 3 and 4 are combined into a secondary 40MHz channel, and channels 5 to 8 are combined into a secondary 80MHz channel. Furthermore, the primary 40MHz channel (or simply the primary channel, P40) is the 40MHz channel containing the primary 20MHz channel; the primary 80MHz channel (or simply the primary channel, P80) is the 80MHz channel containing the primary 20MHz channel.

[0188] For example, Figure 2b is another channel distribution diagram provided by an embodiment of this application. As shown in Figure 2b, when the bandwidth is 320MHz, it can be divided into a primary 20MHz channel (or simply primary channel, Primary 20MHz, P20), a secondary 20MHz channel (Secondary 20MHz, S20), a secondary 40MHz channel (Secondary 40MHz, S40), a secondary 80MHz channel (Secondary 80MHz, S80), and a secondary 160MHz channel (Secondary 160MHz, S160). In an optional implementation, channel 1 can correspond to the primary 20MHz channel, channel 2 can correspond to the secondary 20MHz channel, channels 3 and 4 can be combined into a secondary 40MHz channel, channels 5 to 8 can be combined into a secondary 80MHz channel, and channels 9 to 16 can be combined into a secondary 160MHz channel. In addition, the primary 40MHz channel (or simply primary channel, P40) is the 40MHz channel where the primary 20MHz channel is located; the primary 80MHz channel (or simply primary channel, P80) is the 80MHz channel where the primary 20MHz channel is located; and the primary 160MHz channel (or simply primary channel, P160) is the 160MHz channel where the primary 20MHz channel is located.

[0189] In another embodiment, the bandwidth can be divided into resource units (RUs) of different sizes. Resource units of different sizes can be composed of different numbers of subcarriers. For example, a resource element comprising (or of) 996 subcarriers (referred to as a 996-tone RU), a resource element comprising (or of) 484 subcarriers (referred to as a 484-tone RU), a resource element comprising (or of) 106 subcarriers (referred to as a 106-tone RU), a resource element comprising (or of) 26 subcarriers (referred to as a 26-tone RU), a resource element comprising (or of) 52 subcarriers (referred to as a 52-tone RU), and so on.The resource unit (RRU) with 2*996 subcarriers (referred to as 2*996-tone RU, or 996+996RU including two 996-tone RUs, or 996+996MRU) and the resource unit with 3*996 subcarriers (referred to as 3*996-tone RU, or 996+996+996RU including three 996-tone RUs, or 996+996+996MRU).

[0190] Please refer to Figure 3, which is a schematic diagram of subcarrier distribution in 80MHz provided by an embodiment of this application. As shown in Figure 3, the first row indicates that 80MHz may include 36 26-tone RUs; the second row indicates that 80MHz may include 16 52-tone RUs; the third row indicates that 80MHz may include 8 106-tone RUs; the fourth row indicates that 80MHz may include 4 242-tone RUs; and the fifth row indicates that 80MHz may include 2 484-tone RUs, where 484L represents the left half of the 484-tone RU and 484R represents the right half, each including 242 subcarriers, which is another schematic diagram of a 484-tone RU. The sixth row indicates that 80MHz may include 1 996-tone RU. In addition to the RUs used for data transmission, some guard subcarriers, empty subcarriers, or direct current (DC) subcarriers may also be included, as shown in Figure 3.

[0191] For a 160MHz bandwidth or a discrete 160MHz + 80MHz bandwidth, it can be regarded as a replica combination of two 80MHz subcarrier distributions shown in Figure 3. For example, the entire bandwidth can include a 2*996-tone RU, or it can include various combinations of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, and 996-tone RU.

[0192] For a 240MHz bandwidth or a discrete 160+80MHz bandwidth, the entire bandwidth can be regarded as a replica combination of three 80MHz subcarrier distributions shown in Figure 3, or it can include various combinations of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, and 996-tone RU.

[0193] For a 320MHz bandwidth or a discrete 160+160MHz bandwidth, the entire bandwidth can be viewed as a replica combination of four 80MHz subcarrier distributions as shown in Figure 3, or may include 26-tone.Various combinations of RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU, and 996-tone RU.

[0194] The subcarrier distributions of the various bandwidths above increase in frequency from left to right. As shown in Figure 3, the left side can be considered the lowest frequency, and the right side can be considered the highest frequency. Resource units are numbered from left to right, such as the first (1st), the second (2nd), ..., etc. As shown in Figure 3, the 80MHz includes four 242-tone RUs, which can be numbered from left to right: the first 242-tone RU, the second 242-tone RU, the third 242-tone RU, and the fourth 242-tone RU. Among them, the first 242-tone RU and the second 242-tone RU correspond one-to-one with the two lowest 20MHz frequencies within the 80MHz range, in ascending order of frequency; the third 242-tone RU and the fourth 242-tone RU correspond one-to-one with the two highest 20MHz frequencies within the 80MHz range, in ascending order of frequency. Since there is an intermediate 26-tone RU every 80MHz, the above-mentioned 242-tone RUs and their corresponding 20MHz frequencies do not completely overlap in frequency.

[0195] In addition to the RUs mentioned above, 802.11be also introduces a multi-resource unit (MRU) obtained by combining multiple RUs of the above sizes. For example, 802.11be also introduces a (52+26)-tone RU (or simply (52+26)-tone MRU, or simply 78-tone RU) that includes a 52-tone RU and a 26-tone RU; a (106+26)-tone RU (or simply (106+26)-tone MRU, or simply 132-tone RU) that includes a 106-tone RU and a 26-tone RU; a (484+242)-tone RU (or simply (484+242)-tone MRU, or simply 726-tone RU) that includes a 484-tone RU and a 242-tone RU; and a (996+484)-tone RU (or simply (996+484)-tone RU that includes a 996-tone RU and a 484-tone RU. MRU, or simply 1480-tone RU; including two 996-tone RUs and one 484-tone RU, a (2*996+484)-tone RU (or simply (2*996+484)-tone RU).MRU (or simply 2476-toneRU); 3*996-tone RU (or simply 3*996-tone MRU, or simply 2988-toneRU) including three 996-tone RUs; (3*996+484)-tone RU (or simply (3*996+484)-tone MRU, or simply 3472-toneRU) including three 996-tone RUs and one 484-tone RU; (996+484+242)-tone RU (or simply (996+484+242)-tone MRU, or simply 1722-toneRU) including one 996-tone RU, one 484-tone RU and one 242-tone RU.

[0196] Among them, 26-tone RU corresponds to approximately 2MHz, 52-tone RU corresponds to approximately 4MHz, 106-tone RU corresponds to approximately 8MHz, and 242-tone RU corresponds to approximately 20MHz. The sizes of other RUs can be added or multiplied accordingly, which will not be elaborated here.

[0197] Among them, the access point allocates multiple RUs to the site, which can be called site allocation MRU. The MRU includes multiple RUs, or multiple resource units merged, or multiple resource units combined, or multiple resource units combined. Unless otherwise specified, in this article, "merged", "combined", and "combined by" have the same meaning. Optionally, the MRU composed of multiple RUs may also include some DC subcarriers, empty subcarriers, etc.

[0198] 2. Scheduled uplink transmission method based on trigger frame

[0199] Usually, the STA obtains the right to transmit through channel contention before transmitting uplink data, such as based on EDCA (enhanced distributed channel access) to compete for the channel. 802.11ax introduces a trigger-frame-based scheduled uplink transmission method. Figure 4 illustrates this trigger-frame-based scheduled uplink transmission, which is a schematic diagram of an embodiment of this application. The access point sends a trigger frame containing resource scheduling and other parameters for one or more stations to send uplink physical layer protocol data units (PPDUs). Upon receiving the trigger frame, each station parses out a user information field that matches (or is identical to) its own associated identifier (as described on page 16 / 75 of the specification, CN 121057024 A). Then, it sends high-efficiency trigger-based data packets on an RU or MRU indicated by the resource unit allocation subfield in the user information field.Trigger-based physical layer protocol data unit (EHT TB PPDU), also known as EHT TB PPDU, is a type of EHT PPDU. After receiving an uplink multi-user PPDU composed of uplink sub-PPDUs from one or more sites, the access point replies with an acknowledgment frame. The acknowledgment frame sent by the access point to one or more sites can be sent via downlink OFDMA or non-HT copy transmission. The acknowledgment frame includes an acknowledgment (Ack) frame and a block acknowledgment (Block Ack) frame. The Block Ack frame includes compressed Block Ack frames and multi-site block acknowledgment (Multi-STA Block Ack frames). The Ack and Block Ack frames acknowledge an uplink sub-PPDU sent for a single site, while the Multi-STA Block Ack acknowledges an uplink sub-PPDU sent for one or more sites.

[0200] In one implementation, the frame format of the trigger frame may be as shown in Figure 5. Figure 5 is a schematic diagram of the structure of a trigger frame provided in an embodiment of this application. The trigger frame may include only some of the fields shown in Figure 5, or the trigger frame may include more fields than those shown in Figure 5. This embodiment of the application does not limit this. For example, the trigger frame includes a common info field and a user info list field. The trigger frame may also include a frame control field, a duration field, a receive address (RA) field, a send address (TA) field, a padding field, and a frame check sequence (FCS) field, etc.

[0201] The common info field may also be called a common field or a common information field. The public information field includes subfields such as trigger type, length, cascade indication, carrier sensing required, bandwidth, guard interval + long training sequence (GI+LTF), and trigger dependent common info, which are public information that all stations need to read.

[0202] The user information list field can also be called the user information list field, the site-specific field, etc. The user information list field includes one or more user information fields, and each user information field includes information that each station needs to read, such as association identifier.The subfields include Identifier (AID), Resource Unit Allocation (RU) subfield, Coding Type subfield, Modulation and Coding Scheme (MCS) subfield, Reserved subfield, and Trigger Dependent User Info subfield.

[0203] Among them, the Association Identifier field is used to indicate the association identifier of the site corresponding to the User Info field; the Resource Unit Allocation subfield is used to indicate the RU / MRU (or the location of the RU / MRU) allocated to the site.

[0204] The term "field" as used herein can also be referred to as "domain," "information," etc., and "subfield" can be referred to as "subdomain," "information," etc.

[0205] The PPDU sent by the site on the allocated RU / MRU can also be an Extremely High Throughput trigger-based physical layer protocol data unit (EHTTB PPDU). The functions of each field of this PPDU are shown in Table 2. It should be understood that this is only an example, and in standard setting or actual implementation, EHT PPDU may also include other fields.

[0206] Table 2 Description of the function of each field of PPDU 17 / 75 pages 23 CN 121057024 A

[0207]

[0208] With the development of wireless local area networks, the data rate required for uplink data transmission by stations has also increased. How the access point allocates multiple resource units to the station and instructs the station so that the station can use multiple resource units for uplink data transmission and improve the data rate has become an urgent problem to be solved.

[0209] This application provides a resource unit indication method, in which the access point can allocate MRUs to the station respectively. The resource unit indication method can also be called a multi-resource unit indication method or a multi-resource unit merging method, etc. In the embodiments of this application, a trigger frame is used to allocate MRUs to the station. By designing the resource unit allocation sub-field in the trigger frame, the allocation of RU / MRU in 320MHz is met. The trigger frame designed in this application embodiment is applicable to 802.11be (EHT) and future WiFi systems, where uplink transmission bandwidth is large and the types of uplink transmission resource blocks allocated to stations are increasing.

[0210] Each station corresponds to a resource unit allocation subfield. This resource unit allocation subfield is divided into two parts.The first part of the bits is used to inform the site of a certain frequency band range, and the second part of the bits informs the MRU entries based on the frequency band range. The entry is an index in the index table or the RU or MRU corresponding to the index, and the second part of the bits can indicate the RU or MRU in the index table. For ease of description, the first part of the bits can be called the frequency band range indicator, and the second part of the bits can be called the resource unit indicator. In standard setting or actual implementation, as long as it conforms to the functions of the first part of the bits and the second part of the bits, it falls within the scope of the embodiments of this application. The embodiments of this application do not limit the names of the first part of the bits and the second part of the bits.

[0211] It should be understood that the frequency range of an RU in the MRU referred to in the embodiments of this application may be different from or the same as the actual frequency range covered by the RU. The frequency range of the RU abbreviated in this embodiment may be larger or smaller than the actual frequency range covered by the RU, or the two may be the same.

[0212] The actual frequency range covered by the RU is smaller than the frequency range it occupies. For example, a 484-tone RU actually covers a frequency range of 40MHz. This 40MHz is the second 80MHz within 320MHz. When describing the frequency range of the RU in 80MHz granularity, it can be said that the frequency range of the 484-tone RU is the second 80MHz within 320MHz; Specification 18 / 75 pages 24 CN 121057024 A

[0213] The actual frequency range covered by the RU is the same as or equal to the frequency range it occupies. For example, a 484-tone RU actually covers a frequency range of 40MHz. This 40MHz is the third 40MHz within 320MHz. When describing the frequency range of the RU in 40MHz granularity, it can be said that the frequency range of the 484-tone RU is the third 40MHz within 320MHz;

[0214] The actual frequency range covered by an RU is the same as or equal to the frequency range it occupies. For example, an RU with a size of 996-tone covers a true frequency range of 80MHz. This 80MHz is the second 80MHz within 320MHz. When describing the frequency range of the RU in 80MHz granularity, the frequency range of the 996-tone RU can be called the second 80MHz within 320MHz.

[0215] The actual frequency range covered by an RU is larger than the frequency range it occupies. For example, an RU with a size of 996-tone covers a true frequency range of 80MHz. This 80MHz is the second 80MHz within 320MHz. When describing the frequency range of the RU in 40MHz granularity, the frequency range of the 996-tone RU can be called the third (or fourth) 40MHz within 320MHz.

[0216] Wherein, for MRU, the frequency band range indication and the frequency band range may include the relationship described in any of the following aspects:

[0217] In a first aspect, the frequency band range indication is used to indicate the frequency band range where the smallest RU in the MRU is located.

[0218] That is, the resource unit indication is used to indicate the multiple resource unit MRUs allocated to the station, and the frequency band range indication is used to indicate the frequency band range where the smallest RU in the MRU indicated by the resource unit indication is located; thus, the station determines the allocated MRU according to the frequency band range indication and the resource unit indication.

[0219] In another implementation, the resource unit indication is used to indicate the multiple resource unit MRUs allocated to the station, and the frequency band range indication is used to indicate the frequency band range where one RU in the MRU indicated by the resource unit indication is located; the station determines the allocated MRU according to the frequency band range indication and the resource unit indication. One RU in the MRU may be the smallest RU in the MRUs as described above, or the largest RU in the MRUs, or an RU of a preset size in the MRUs. The following embodiments use the smallest RU as an example for illustration. In this embodiment, the frequency band range indicator can not only indicate a frequency band range, but also the frequency band range where one RU in the MRU is located. This is beneficial for the resource unit indicator to indicate more MRU entries with the same number of bits, or for the resource unit indicator to require fewer indexes when indicating the same number of MRU entries, and to reserve more indexes for indicating other information.

[0220] The granularity of the frequency band range range indicated by the frequency band range indicator can be 40MHz, 80MHz, 160MHz, 240MHz, or 320MHz. That is, in one embodiment, the frequency band range indicator is used to indicate 80MHz where one RU in the MRU is located. In another embodiment, the frequency band range indicator is used to indicate 40MHz where one RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate 160MHz where one RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate 240MHz where one RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate 320MHz where one RU in the MRU is located.

[0221] In this application, the resource unit indication method 110 is illustrated using the frequency band range indication to indicate an 80MHz range where one RU in the MRU is located as an example; the resource unit indication method 120 is illustrated using the frequency band range indication to indicate a 40MHz range where one RU in the MRU is located as an example. For other frequency band range granularities, to avoid redundancy, they will not be described further, but related embodiments can be obtained by those skilled in the art based on this implementation method, resource unit indication method 110, and resource unit indication method 120.

[0222] In a second aspect, the frequency band range indication is used to indicate a frequency band range in the bandwidth that is not related to the MRU.

[0223] In one embodiment, the resource unit indicator is used to indicate multiple resource units (MRUs) allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which some or all of the resource unit RUs, excluding the MRUs, are located in the bandwidth; furthermore, the station determines the allocated MRUs based on the frequency band range indicator and the resource unit indicator. Specification 19 / 75 pages 25 CN 121057024 A

[0224] In another embodiment, the frequency band range indicator is used to indicate a frequency band range in the bandwidth; the resource unit indicator is used to indicate the MRUs allocated to the station, and the MRUs include the remaining resource unit RUs in the bandwidth excluding the frequency band range indicated by the frequency band range indicator; the station determines the allocated MRUs based on the frequency band range indicator and the resource unit indicator.

[0225] As can be seen, in this embodiment, the frequency band range indication not only indicates a frequency band range, but also the frequency band range is unrelated to the MRU indicated by the resource unit indication. This is beneficial for the site to know the frequency band range related to the MRU in the bandwidth. It is also beneficial for the resource unit indication to indicate more MRU entries with the same number of bits, or for the resource unit indication to require fewer indexes when indicating the same number of MRU entries, and to reserve more indexes to indicate other information.

[0226] In this application, the resource unit indication method 210 is described with the example of "the frequency band range indication is used to indicate the frequency band range in the bandwidth where some or all of the resource unit RUs other than the MRUs are located"; the resource unit indication method 220 is described with the example of "MRUs include the remaining resource unit RUs in the bandwidth other than the frequency band range indicated by the frequency band range indication".

[0227] In a third aspect, the frequency band range indicated by the frequency band range indication is variable and is related to the type of MRU indicated by the resource unit indication.

[0228] The granularity of the frequency band range indicated by the frequency band range indicator is related to the MRU indicated by the resource unit indicator. Optionally, the frequency band range indicator is used to indicate the frequency band range where the MRU indicated by the resource unit indicator is located, so the frequency band range indicated by the frequency band range indicator is variable and is not the fixed granularity of the frequency band range as described in the first aspect above.

[0229] In this embodiment, the frequency band range indicator can indicate the frequency band range where the MRU indicated by the resource unit indicator is located, which is beneficial for the station to know the frequency band range where the MRU is located in the bandwidth. It is also beneficial for the resource unit indicator to indicate more MRU entries with the same number of bits, or for the resource unit indicator to require fewer indexes when it needs to indicate the same number of MRU entries, and to reserve more indexes for indicating other information.

[0230] In this application, the resource unit indicator method 310 is described using "the frequency band range indicator is used to indicate the frequency band range where the MRU indicated by the resource unit indicator is located" as an example.

[0231] It can be seen that in the resource unit indicator methods described in the above three aspects, the station receives the corresponding resource unit indicator.When the gamete field is read, the MRU, such as the location of the MRU, can be obtained by reading the bits of the first part and the bits of the second part.

[0232] This application also provides a resource unit indication method in a fourth aspect. In this aspect, the bits of the first part and the bits of the second part can be merged into one part for indication. In other words, when indicating the resource unit allocated to the site, the resource unit allocation subfield uses the whole bit for indication, and no longer distinguishes between the first part of the bits used to indicate the frequency range and the second part of the bits used to indicate the resource unit. For example, the resource unit allocation subfield corresponding to the site occupies N bits. The index indicated by the N bits directly represents the absolute position of a RU or a multi-resource unit MRU in the bandwidth. Then the site can directly look up the table to find the allocated RU / MRU according to the index indicated by the N bits. Therefore, in this application, the resource unit indication method 401 is described with the example of "the index indicated by the N bits directly represents the absolute position of a RU or a multi-resource unit MRU in the bandwidth".

[0233] The resource unit indication method 110, resource unit indication method 120, resource unit indication method 210, resource unit indication method 220, resource unit indication method 310, and resource unit indication method 410 will be described below with reference to the accompanying drawings.

[0234] Embodiment 1 mainly describes resource unit indication method 110.

[0235] Please refer to Figure 6. Figure 6 is a flowchart illustrating a resource unit indication method 110 provided in an embodiment of this application. As shown in Figure 6, the resource unit indication method 110 may include, but is not limited to, the following steps:

[0236] S111: The access point determines the trigger frame; Specification 20 / 75 pages 26 CN 121057024 A

[0237] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit allocation subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indication is used to indicate the 80MHz of the smallest resource unit (RU) among the MRUs indicated by the resource unit indication.

[0238] S112: The access point sends the trigger frame;

[0239] S113: The site receives the trigger frame from the access point;

[0240] S114: The site determines the allocated MRU according to the frequency band range indication and the resource unit indication.

[0241] In one implementation, step S114, in which the station determines the allocated MRU based on the frequency band range indication and the resource unit indication, includes: the station determining the 80MHz indicated by the frequency band range indication (i.e., the frequency band range indication can indicate a frequency band range of 80MHz and its position in the bandwidth), and knowing that the smallest RU among the MRUs indicated by the resource unit indication is inIn this 80MHz, the allocated MRU is then determined by combining the index of the resource unit indication.

[0242] For example, the MRU indicated by the resource unit indicator is a (52+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 26-tone RU of the (52+26)-tone RU is located; or the MRU indicated by the resource unit indicator is a (106+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 26-tone RU of the (106+26)-tone RU is located; or the MRU indicated by the resource unit indicator is a (484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 242-tone RU of the (484+242)-tone RU is located; or the MRU indicated by the resource unit indicator is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 484-tone RU of the (996+484)-tone RU. The MRU indicated by the resource unit indicator is a (2*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 484-tone RU in the (2*996+484)-tone RU is located; or the MRU indicated by the resource unit indicator is a 3*996-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where one of the 3*996-tone RUs, the 996-tone RU, is located; or the MRU indicated by the resource unit indicator is a (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80MHz range where the 484-tone RU in the (3*996+484)-tone RU is located; or the MRU indicated by the resource unit indicator is a (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the (996+484+242)-tone RU. 242)-tone RU, where the 242-tone RU is located in 80MHz.

[0243] Assuming the resource unit allocation subfield has 9 bits, the frequency band range indication is the first and second bits in the resource unit allocation subfield, denoted as B0 and B1. Then, B0 and B1 indicate one 80MHz in 320MHz. As shown in Table 3, Table 3 shows the 80MHz that the frequency band range indication (B0, B1) needs to indicate, to represent the 80MHz where the smallest RU in the MRU indicated by the resource unit indication is located. Among them, the frequency band ranges of each 80MHz in 320MHz are called the first 80MHz, the second 80MHz, the third 80MHz, and the fourth 80MHz in order from low to high frequency.

[0244] As shown in Table 3, B0B1 being 00 indicates that the frequency band indicated by the frequency band range indicator is the first 80MHz in 320MHz; B0B1 being 01 indicates that the frequency band indicated by the frequency band range indicator is the second 80MHz in 320MHz; B0B1 being 10 indicates that the frequency band indicated by the frequency band range indicator is the third 80MHz in 320MHz; and B0B1 being 11 indicates that the frequency band indicated by the frequency band range indicator is the fourth 80MHz in 320MHz.

[0245] Table 3 Frequency Band Range Indicators (B0, B1) Required Frequency Band Ranges Specification Page 21 / 75 27 CN 121057024 A

[0246]

[0247] The resource unit indicator is the third to ninth bits in the resource unit allocation subfield, denoted as B2 to B8. Therefore, combining the frequency band range indicator and the required RUs or MRUs, the RUs or MRUs required by the resource unit indicator can be shown in Table 4. The first column in Table 4 contains the values ​​of B2 to B8, which can be referred to as the indexes indicated by the resource unit indicator; the second column in Table 4 indicates the resource unit size corresponding to each index; the third column in Table 4 indicates the number of indexes corresponding to each resource unit size, i.e., the number of entries. Among them, each index in Table 4 can be combined with the frequency band range indicator to determine the corresponding RU or MRU.

[0248] Entries to be indicated by the resource unit indicator (B2 to B8) in Table 4

[0249]

[0250]

[0251] As shown in Figure 3, there are 36 positions for 26-tone RUs in 80MHz. Based on the 80MHz indicated by the frequency band range indicator on page 22 / 75 of the specification 28 CN 121057024 A, the resource unit indicator indicates one of the indices 0 to 35 shown in Table 4 to indicate a corresponding 26-tone RU in that 80MHz.

[0252] Optionally, since there are 37 positions for 26-tone RUs in 80MHz in 802.11ax, the number of indices indicating 26-tone RUs in the table corresponding to the resource unit indication in 802.11ax is 37, i.e., indices 0 to 36. Therefore, in order to better be compatible with 802.11ax devices, this application can reserve index 36 in Table 4 instead of using it to indicate 52-tone RUs, i.e., starting from index 37, it can be used to indicate other RUs / MRUs. In this way, it is beneficial for 802.11ax devices to continue to understand the relevant entries in Table 4 described in the embodiments of this application, so that the technical solution provided by the embodiments of this application is compatible with existing standards.

[0253] As shown in FIG3, there are 16 positions for 52-tone RUs in 80MHz. The resource unit indication, based on the 80MHz indicated by the frequency band range indication, indicates the corresponding RU by indicating one of the indices 36 to 51 shown in Table 4.

[0254] As shown in FIG3, there are 8 positions for 106-tone RUs in 80MHz. The resource unit indicator indicates a 52-tone RU in the corresponding 80MHz by indicating one of the indices 52 to 59 shown in Table 4, based on the 80MHz indicated by the frequency band range indicator.

[0255] As shown in FIG3, there are 4 positions for 242-tone RUs in 80MHz. The resource unit indicator indicates a 242-tone RU in the corresponding 80MHz by indicating one of the indices 60 to 63 shown in Table 4, based on the 80MHz indicated by the frequency band range indicator.

[0256] As shown in FIG3, there are 2 positions for 484-tone RUs in 80MHz. The resource unit indicator indicates a 484-tone RU in the corresponding 80MHz by indicating one of the indices 64 to 65 shown in Table 4, based on the 80MHz indicated by the frequency band range indicator.

[0257] The frequency band range indicator can indicate the 80MHz where the 996-tone RU is located, so the resource unit indicator only needs one index 66 to indicate the 996-tone RU. Accordingly, the station determines the 80MHz where the smallest RU in the MRU is located based on the frequency band range indicator, and then combines the RU size corresponding to the index 66 indicated by the resource unit indicator, which is 996-tone RU, so the station can know that the 996-tone RU corresponding to this 80MHz is the allocated RU.

[0258] The above is the indication method for a single RU. The indication method for MRU will be described below. In the schematic diagrams of various MRUs shown in Figures 7 to 14 of this document, for each MRU in each figure, the MRU includes RUs filled with vertical lines. That is, RUs filled with vertical lines represent RUs included in the MRU. For example, in the three (26+52)-tone RUs shown in Figure 7, the (26+52)-tone RU shown in the first row includes a second 26-tone RU filled with vertical lines and a second 52-tone RU filled with vertical lines. In addition, in this article, "*" and "×" have the same meaning and are not distinguished. For example, 2*996-tone RU can be represented as 2×996-tone RU.

[0259] Since 2*996-tone RU cannot span two 160MHz, that is, the frequency band range where 2*996-tone RU is located can only be the main 160MHz or the secondary 160MHz, the frequency band range indicator can indicate the 80MHz where one of the 996-tone RUs in 2*996-tone RU is located, so the location of the other 996-tone RU in 2*996-tone RU can be known. Therefore, the resource unit indicator only needs one index.Index 67 can be combined with the frequency band range indicator to indicate a 2*996-tone RU. Accordingly, the station determines the 80MHz where the smallest RU in the MRU is located based on the frequency band range indicator, and then combines it with the index indicated by the resource unit indicator. For example, the RU size corresponding to 67 is 2*996-tone RU, so the station can know that the primary 160MHz or secondary 160MHz where this 80MHz is located is the allocated 2*996-tone RU.

[0260] There is only one 4*996-tone RU in 320MHz, so the resource unit indicator can indicate an index 68, which can make the station know that the allocated RU is a 4*996-tone RU.

[0261] The (52+26)-tone RU in 20MHz has three combinations as shown in Figure 7: a (52+26)-tone RU including the second 52-tone RU and the second 26-tone RU in 20MHz; a (52+26)-tone RU including the second 52-tone RU and the fifth 26-tone RU in 20MHz; and a (52+26)-tone RU including the third 52-tone RU and the eighth 26-tone RU. Since the (52+26)-tone RU cannot be combined across 20MHz, the (52+26)-tone RU in 80MHz has 12 (i.e., 4*3) combinations. Therefore, based on the 80MHz of the 26-tone RU indicated by the frequency band range indicator, the resource unit indicator also needs to indicate one of the indices 69 to 80 to indicate a (52+26)-tone RU in the corresponding 80MHz. The correspondence between each index in indices 69 to 80 and each of the 12 (52+26)-tone RUs can be sorted one-to-one according to the index size, with the starting frequency of the 12 (52+26)-tone RUs from low to high.

[0262] The (106+26)-tone RUs in 20MHz have two combinations as shown in Figure 8, namely: a (106+26)-tone RU including the first 106-tone RU and the fifth 26-tone RU in 20MHz, and a (106+26)-tone RU including the second 106-tone RU and the fifth 26-tone RU in 20MHz. Therefore, the (106+26)-tone RU in 80MHz has 8 (i.e., 4*2) combinations. Thus, based on the 80MHz range indicated by the frequency band indication where the 26-tone RU is located, the resource unit indicates...The indicator also needs to specify one of indices 81 to 88 to indicate a corresponding (106+26)-tone RU within the 80MHz range. The correspondence between each index in indices 81 to 88 and each of the eight (106+26)-tone RUs can be determined by sorting the eight (106+26)-tone RUs from low to high according to the index size.

[0263] The (484+242)-tone RU in 80MHz has four combinations as shown in FIG9: (484+242)-tone RU including the second 484-tone RU and the first 242-tone RU in 80MHz, (484+242)-tone RU including the second 484-tone RU and the second 242-tone RU in 80MHz, (484+242)-tone RU including the first 484-tone RU and the third 242-tone RU in 80MHz, and (484+242)-tone RU including the first 484-tone RU and the fourth 242-tone RU in 80MHz. Therefore, based on the 80MHz where the 242-tone RU indicated by the frequency band range indicator is located, the resource unit indicator also needs to indicate one of the indices 89 to 92 to indicate a (484+242)-tone RU in the corresponding 80MHz. The correspondence between each index in indexes 89 to 92 and each of the four (484+242)-tone RUs can be sorted from low to high according to the index size and the starting frequency of the four (484+242)-tone RUs.

[0264] Since the (996+484)-tone RU can be located within the main 160MHz or within the secondary 160MHz, the (996+484)-tone RU in the 160MHz has four combinations as shown in FIG10, namely: including the first 484-tone RU and the second 996-tone RU (996+484)-tone RU in the 160MHz, including the second 484-tone RU and the second 996-tone RU (996+484)-tone RU in the 160MHz, including the third 484-tone RU and the first 996-tone RU (996+484)-tone RU in the 160MHz, and including the fourth 484-tone RU and the first 996-tone RU (996+484)-tone RU in the 160MHz. Therefore, the indicated 484-tone RU is indicated within the frequency band range.Based on the 80MHz where the RU is located, the station can directly know the location of the 996-tone RU in the (996+484)-tone RU. Therefore, the resource unit indication also needs to indicate one of the indices 93 to 94 to indicate the location of the 484-tone RU in the (996+484)-tone RU in that 80MHz. There are two locations for the 484-tone RU in that 80MHz, so the resource unit indication corresponds to two entries.

[0265] Thus, for the access point side, the frequency band range indication can indicate the 80MHz where the 484-tone RU in the (996+484)-tone RU is located, and the resource unit indication can indicate index 93 or index 94. Accordingly, after the station receives the resource unit allocation subfield, it can determine the allocated (996+484)-tone RU based on the 80MHz indicated by the frequency band range indication and the location of the 484-tone RU in that 80MHz corresponding to the index value indicated by the resource unit indication.

[0266] For example, suppose that index 93 corresponds to the first 484-tone RU in the indicated 80MHz frequency range, and index 94 corresponds to the second 484-tone RU in the indicated 80MHz frequency range, and suppose that 160MHz shown in FIG10 is the main 160MHz in 320MHz. Thus, combining Tables 3 and 4, in Figure 10, the frequency range indicator is 00 and the resource unit indicator is 93 in the resource unit allocation subfield corresponding to the first (996+484)-tone RU in the first row; in Figure 10, the frequency range indicator is 00 and the resource unit indicator is 94 in the resource unit allocation subfield corresponding to the second (996+484)-tone RU in the first row; in Figure 10, the frequency range indicator is 01 and the resource unit indicator is 93 in the resource unit allocation subfield corresponding to the first (996+484)-tone RU in the second row; and in Figure 10, the frequency range indicator is 01 and the resource unit indicator is 94 in the resource unit allocation subfield corresponding to the second (996+484)-tone RU in the second row.

[0267] Since the (2*996+484)-tone RU belongs to 240MHz transmission, it can only exist in 240MHz formed by punching the lowest or highest 80MHz frequency in 320MHz. The (2*996+484)-tone RU in 240MHz has six combinations as shown in Figure 11, namely: (2*996+484)-tone RU including the first 484-tone RU and the second and third 996-tone RUs in 240MHz, including the second 484-tone RU in 240MHz, and the (2*996+484)-tone RU including the second 484-tone RU in 240MHz.The RU and the second and third 996-tone RUs (2*996+484)-tone RUs, including the third 484-tone RU in 240MHz and the first and third 996-tone RUs (2*996+484)-tone RUs, including the fourth 484-tone RU in 240MHz and the first and third 996-tone RUs (2*996+484)-tone RUs, including the fifth 484-tone RU in 240MHz and the first and second 996-tone RUs (2*996+484)-tone RUs, including the sixth 484-tone RU in 240MHz and the first and second 996-tone RUs (2*996+484)-tone RUs. Based on the 80MHz range indicated by the frequency band range indicator for the 484-tone RU within the (2*996+484)-tone RU, there are two possibilities for the location of the 484-tone RU within this 80MHz range, and there are also two possibilities for the location of the (2*996+484)-tone RU within the 240MHz range. Therefore, the resource unit indicator also needs to indicate indices 95 to 98 to indicate the location of the corresponding (2*996+484)-tone RU.

[0268] In another embodiment, based on the 80MHz of the (2*996+484)-tone RU indicated by the frequency band range indicator, the position of the 484-tone RU in the (2*996+484)-tone RU in this 80MHz range has two possibilities, and the position of the (2*996+484)-tone RU in the 240MHz range also has three possibilities. Therefore, the resource unit indicator also needs to indicate indexes 95 to 100 to indicate the position of the corresponding (2*996+484)-tone RU.

[0269] The (3*996)-tone RUs in 320MHz have four combinations as shown in Figure 12: the combination of the second to fourth 996-tone RUs in 320MHz, the combination of the first, third, and fourth 996-tone RUs in 320MHz, the combination of the first to second and fourth 996-tone RUs in 320MHz, and the combination of the first to third 996-tone RUs in 320MHz. Therefore, based on the 80MHz of the 996-tone RU indicated by the frequency band range indicator, the remaining two 996-tone RUs in the (3*996)-tone RUs in 320MHz have three options, so the resource unit indicator also needs to indicate index 99 to...One of the indices 101 indicates a position of one of the remaining two 996-tone RUs in the 320MHz combination with the 80MHz. The correspondence between each index in indices 99 to 101 and one of the three options for the remaining two 996-tone RUs can be arranged one-to-one according to the index size, sorted from low to high starting frequencies of the three (3*996)-tone RUs.

[0270] For example, the size of the MRU indicated by the resource unit indicator is (3*996)-tone RU, and the size of the index indicated by the resource unit indicator corresponds one-to-one with the starting frequencies of the optional combinations of the (3*996)-tone RUs, sorted from low to high. Assuming the access point allocates a (3*996)-tone RU as shown in the first row of Figure 12 to a site, then according to Table 3, B0B1 corresponding to that site needs to be set to 01; assuming that index 99 in Table 4 corresponds to the (3*996)-tone RU shown in the third row of Figure 12, index 100 corresponds to the (3*996)-tone RU shown in the second row of Figure 12, and index 101 corresponds to the (3*996)-tone RU shown in the first row of Figure 12, then B2 to B8 need to be set to 101; Furthermore, the site knows that the RU size corresponding to the indices indicated by B2 to B8 is a (3*996)-tone RU, and that the indices of B2 to B8 are 101, and that B0B1 indicates that one of the 996-tone RUs in this (3*996)-tone RU is the second 996-tone RU in 320MHz, then the site can know the allocated (3*996)-tone RU size. (See page 25 / 75 of the manual, 31 CN) 121057024 A RU is the (3*996)-tone RU shown in the first row of Figure 12.

[0271] The (3*996+484)-tone RU in 320MHz has eight combinations as shown in Figure 13, which are: one of the eight 484-tone RUs in 320MHz and the other three 996-tone RUs outside the 80MHz where the 484-tone RU is located. Therefore, based on the 80MHz where the 484-tone RU is located as indicated by the frequency band range indicator, the other three 996-tone RUs in 320MHz have only one choice, but the 484-tone RU has two positions in 80MHz, so the resource unit indicator also needs to indicate one of indexes 102 to 103 to indicate one position of the 484-tone RU in 80MHz. Among them, the correspondence between each index in indexes 102 to 103 and the two positions of the 484-tone RU in 80MHz can be determined according to the index.The size of the 484-tone RU is arranged in ascending order of the starting frequency of the two positions in 80MHz.

[0272] In 160MHz, there are four combinations of (484+242)-tone RU in one 80MHz, as shown in Figure 14. Therefore, there are eight combinations of (996+484+242)-tone RU in 160MHz. Therefore, based on the 80MHz where the 242-tone RU is located as indicated by the frequency band range indicator, there is only one choice for the 996-tone RU outside the 80MHz in 160MHz. However, there are four positions of the 242-tone RU in 80MHz. Therefore, the resource unit indicator also needs to indicate one of the indices 104 to 107 to indicate one position of the 242-tone RU in 80MHz. Among them, the correspondence between each index in indexes 104 to 107 and the four positions of the 242-tone RU in 80MHz can be sorted one-to-one according to the starting frequency of the four positions of the 242-tone RU in 80MHz from low to high according to the index size.

[0273] It can be seen from the above analysis that since the frequency band range indicated by the frequency band range indicator can also tell the frequency band range where the smallest RU in the MRU is located, it is beneficial for the resource unit indicator to use fewer indices to indicate the various possible positions of the MRU respectively. For example, for the eight combinations of (996+484+242)-tone RU, as shown in Table 4, the resource unit indicator only needs four indices to indicate each combination respectively. For another example, for the eight combinations of (3*996+484)-tone RU, as shown in Table 4, the resource unit indicator only needs two indices to indicate each combination respectively.

[0274] Compared to the method where the frequency band range indication only indicates the lowest 80MHz related to the MRU, the frequency band range indication in this resource unit indication method 101 can carry more information, namely, the 80MHz where the smallest RU in the MRU is located. For example, if the frequency band range indication only indicates the lowest 80MHz related to the MRU, then for the four combinations of (996+484)-tone RU shown in Figure 10, the resource unit indication needs four indices to indicate each combination respectively; if the frequency band range indication is used to indicate the 80MHz where the smallest RU in the MRU is located, as shown in Table 4, the resource unit indication only needs two indices to indicate each combination of (996+484)-tone RU. Therefore, the frequency band range indication in this resource unit indication method 101 can carry more information, which is beneficial for the resource unit indication to use fewer indices to indicate the various possible locations of the MRU respectively.

[0275] This application embodiment also provides a technical solution involving the resource unit allocation subfield (RU) in the user information field of the trigger frame.Another design for the Allocation subfield. As described in the above embodiment, the RU Allocation subfield adopts a 9-bit design, specifically implemented as a 7-bit resource unit indication + a 2-bit frequency band indication, where the 2 bits are the frequency band indication, which is used to indicate a certain 80MHz position, and the other 7 bits of resource unit indication are used to indicate that the 2 bits determine the specific position of the RU / MRU in a certain 80MHz case.

[0276] For example, as shown in Table 3, the 2 bits are used to indicate a certain 80MHz position at an absolute frequency, where 00 indicates the lowest frequency 80MHz, 01 indicates the second lowest frequency 80MHz, 10 indicates the second highest frequency 80MHz, and 11 indicates the highest frequency 80MHz.

[0277] In order to facilitate the receiving device to better identify the corresponding user information field as the HE / EHT user information field, and to facilitate compatibility with the previous generation device (11ax) in the user information field, a 7-bit + 2-bit mode is proposed, where the 2 bits adopt the master-slave position indication method, where the 2 bits indicate the position of the smallest RU in the RU / MRU in the 80MHz. Specification page 26 / 75 32 CN 121057024 A

[0278] In the above case, when using the 80MHz master-slave position indication method, the RU Allocation subfield can have the following specific designs:

[0279] The advantages of using the master-slave position indication method are further introduced below: The two bits under the master-slave indication method are represented by BS and B0 (other letters can also be used, such as B0B1 in the aforementioned embodiment, which is only an example here), where B can be understood as a bit, and S can be understood as a 160MHz segment. BS here represents master 160MHz or slave 160MHz, while B0 represents master and slave 80MHz when P160 MHz, and B0 represents the lower frequency 80MHz and the higher frequency 80MHz when S160 MHz. For example, the 2-bit (BSB0) can be in the form of 00 indicating the primary 80MHz (P80MHz), 01 indicating the secondary 80MHz (S80MHz), 10 indicating the lower 80MHz from 160MHz (S160MHz), also known as the third 80MHz, and 11 indicating the higher 80MHz from 160MHz (S160MHz), also known as the fourth 80MHz. Here, the correspondence between the value and meaning of the 2 bits is only an example; in other implementations, the correspondence between the value and meaning of the 2 bits can be interchanged.

[0280] For an 11be device, it may receive an 11be user information field or an 11ax user information field.The information field, when using master-slave indication, can bring advantages to the identification of user information fields: for example, in the common field part of the trigger frame, we can use a 4-bit bitmap to indicate that the master 80MHz, slave 80MHz, third 80MHz, and fourth 80MHz belong to HE / EHT respectively (or we can use 2 bits to indicate only the master 80MHz and slave 80MHz). In this architecture, an 11be device can determine which 80MHz its assigned RU (Remote Root) belongs to (entirely or partially) via BS and B0 (because the indication method in this embodiment can indicate the 80MHz where the smallest RU in the RU or MRU is located). Then, through HE / EHT indication, it can determine whether the read user information field belongs to the 11ax user information field or the 11be user information field: for example, a bitmap of 0011 indicates that the master / slave 80MHz is the ax user information field and the slave 160MHz is the be user information field. The 11be receiver can then locate a specific 80MHz via BS and B0, such as the slave 80MHz. Since this 80MHz indicates the ax user information field, the 11be device can interpret it according to the ax user information field. In summary, the master / slave 80MHz setting for BS and B0 is beneficial for 11be's HE / EHT identification.

[0281] It should be noted that the position of BS in the 11ax user field is usually set to 0 (it can be the reserved field B39), and since the 11ax user information field is itself in the master 160MHz, BS should also be 0, defaulting to the master 160MHz. At the same time, the position of B0 is in the same position in the 11ax and 11be user information fields. Therefore, when the 11be device reads a user information field that is unknown as HE / EHT, it can distinguish HE / EHT by combining BS and B0 with the above x-bit HE / EHT bit map. When the 11be user information field indicates master-slave 80MHz, BS-B0 can be equal to 00 or 01, and when the 11ax user information field indicates master-slave 80MHz, BS-B0 is also equal to 00 and 01, so they are compatible with each other. In addition, BS-B0 of the 11be user information field can also indicate 10 and 11, representing 80MHz in the slave 160MHz.

[0282] Example (1) 2-bit correspondence table of master-slave indication and absolute indication.

[0283] This embodiment (1) provides the design of the correspondence relationship shown in Table 4 (1) below. Table 4 (1) shows the four master-slave situations (a, b, c, d) where the master 80MHz is located in 320MHz, and the correspondence between the two bits indicating the absolute frequency of 80MHz. Here, the absolute frequency is the absolute position of a certain 80MHz in the entire 320MHz bandwidth. Case a corresponds to the absolute frequency bitThe distribution is consistent, that is, the master 80MHz is at the lowest 80MHz of the absolute frequency in Case b, the master 80MHz is at the second lowest 80MHz of the absolute frequency in Case c, the master 80MHz is at the second highest 80MHz of the absolute frequency in Case d, and the master 80MHz is at the highest 80MHz of the absolute frequency in Case d. Each row in Table 4(1) represents the value of the 80MHz indicator at the absolute frequency corresponding to the four master-slave distribution cases. For example, the first row: the absolute frequency 00 corresponds to a0, b1, c2, d2 (that is, when Case a takes the value 00, it corresponds to the position 00; when Case b takes the value 01, it corresponds to the absolute position 00; when Case c takes the value 10, it corresponds to the absolute position 00; and when Case d takes the value 10, it corresponds to the absolute position 00). It should be noted that the values ​​of the two bits and their meanings here are only examples. In specific implementations, there may be other correspondences, but there is a mapping relationship between the master-slave distribution and the value of the 80MHz indication at the absolute frequency.

[0284] In this way, when the receiving device knows which case it is, such as Case c, when the received two-bit indication is c3 (11), it only needs to correspond c3 to 01 in the absolute position. Then, combined with the 7-bit resource unit indication described in the previous embodiment, the final allocated RU / MRU can be found in Table 4. It is equivalent to the receiving device having an operation to convert from a relative position to an absolute position. The receiving device here can be a non-AP STA.

[0285] The 2-bit correspondence between master / slave indication and absolute frequency indication is shown in Table 4(1) below:

[0286] Table 4(1)

[0287]

[0288] Explanation: BS and BO can indicate the 80MHz of the smallest RU in the MRU or RU, using the master / slave position indication method. For example, 3*996 is composed of 2*996+996, which can indicate the position of the 80MHz of 996; another example is 3*996+484, which can indicate the position of the 80MHz of 484.

[0289] As mentioned above, 2 bits can be used in the RU Allocation subfield to indicate the position of a certain 80MHz. The indication form can be: 00 indicates the master 80MHz, 01 indicates the slave 80MHz, 10 indicates the third 80MHz (the lower frequency 80MHz in S160), and 11 indicates the fourth 80MHz (the higher frequency 80MHz in S160).

[0290] In this embodiment of the application, N is used to represent the order of the absolute frequencies corresponding to a certain 80MHz location when the 2 bits in the RU Allocation subfield indicate the absolute frequency from low to high: 0, 1, 2, 3. Wherein, 0, 1, 2, and 3 represent the lowest frequency, respectively.80MHz, second lowest frequency 80MHz, second highest frequency 80MHz and highest frequency 80MHz. N can be used to calculate the actual position of RU in the frequency domain.

[0291] If the 2-bit absolute frequency indication in the above table 4(1) is represented by X1 and X0 respectively, then the following correspondence exists: N = 2*X1 + X0. If the mapping relationship from BS, B0 to N is represented in the form of a table, Table 4(1) can be equivalently represented in the following form. In other words, Table 4-A is an equivalent representation of Table 4(1), which can be obtained from Table 4(1) without any doubt.

[0292] Table 4-A Specification 28 / 75 pages 34 CN 121057024 A

[0293]

[0294] Table 4-A can also be expressed as Table 4-B (the two are completely equivalent, only the expression is different. In other words, Table 4-B is an equivalent representation of Table 4(1) or Table 4-A, and can be obtained from Table 4(1) or Table 4-A without any doubt):

[0295] Table 4-B

[0296]

[0297] The following introduces two design methods for formulating the above Table 4(1) or 4-A or 4-B, that is, how to express the relationship between BS, B0 and X1, X0 and even N through formulas. In other words, the following formula is an equivalent representation of the above Table 4(1) or 4-A or 4-B.

[0298] Method 1 uses the description of the master and slave positions of 80MHz and 160MHz, and Method 2 uses the division of different cases a / b / c / d.

[0299] Method 1: Find the relationship of N = function(BS, B0, C80, C160)

[0300] The following corresponding formula can be designed:

[0301] If there are [P80 S80] in the order of frequency from low to high, then C80 = 0, otherwise C80 = 1 (at this time there are [S80 P80]);

[0302] C80 represents the positional relationship between the master and slave 80MHz (P80 S80) and the absolute frequency. If the frequency of the master 80MHz is lower than the frequency of the slave 80MHz, then C80 = 0; otherwise, C80 = 1, which is represented as [S80 P80].

[0303] If [P160 S160] exists in ascending frequency order, then C160 = 0; otherwise, C160 = 1 (in which case [S160 P160] exists);

[0304] C160 describes the positional relationship between the master and slave 160MHz (P160 S160) and the absolute frequency. If the frequency of the master 160MHz is lower than that of the slave 160MHz, then C160 = 0; otherwise, C160 = 1, represented as [S160 P160].

[0305] BS = 0 indicates the position is at the master 160MHz, and BS = 1 indicates the position is at the slave 160MHz;

[0306] Then BS, B0, X1, and X0 can have the following formula relationship (XOR represents the exclusive OR operation, and the horizontal line on the parameter represents the negation operation):

[0307] X1 can be calculated as follows: X1 = XOR(BS, C160)

[0308] And X0 is calculated as follows:

[0309] For C80 equal to 0, X0 = B0; Specification 29 / 75 Page 35 CN 121057024 A

[0310] For C80 equal to 1:

[0311] When BS equals 1, X0 = B0

[0312] When BS equals 0,

[0313] That is, they all have so they can be written in the following form:

[0314] Writing method 1:

[0315] If C80 = 1, then otherwise, X0 = B0;

[0316] Writing method 2:

[0317] If C80 = 1 and BS = 0, then otherwise, X0 = B0;

[0318] Writing method 3:

[0319]

[0320] Since N = 2*X1 + X0, the relationship between BS, B0 and N can be further expressed. For example, if the above writing method 3 is substituted into N, we have:

[0321] Method 2: Find the relationship of N = function(BS, B0, Case a / b / c / d)

[0322] As mentioned above, the relationship between N and BS, B0 under different cases is summarized as follows:

[0323] In case a: N = 2*BS + B0

[0324] In case b:

[0325] In case c:

[0326] In case d:

[0327] Wherein, the first term of the expression on the right is related to X1, and the second term is related to X0.

[0328] In summary, it should be noted that Method 1 and Method 2 provide the calculation methods for X1 and X0 (how to obtain X1 and X0 from BS and B0), and also provide the calculation methods from BS and B0 to N. Although the values ​​of N listed in the formula method are 0, 1, 2, and 3, representing the order of 80MHz from the lowest to the highest, they are still applicable to other orders. For example, when the order is represented by 1, 2, 3, and 4, N can be equal to 2*X1+X0+1, and BS and B0 can be substituted into X1 and X0.

[0329] Based on the technical solution described above, the transmitting device indicates the position of a certain 80MHz through 2 bits (BS and B0) in the RU Allocation subfield. The receiving device obtains the absolute frequencies X1 and X0 in 320MHz corresponding to a certain 80MHz, or the order N of absolute frequencies in 320MHz from low to high, based on the conversion relationship of the 2 bits (BS and B0) in the RU Allocation subfield and the above table or formula. Implementing the embodiments of this application can achieve minimal RU allocation.The subfield indication overhead is used to implement the allocation indication in RU / MRU.

[0330] Example (2): Table 4 (1) of Example (1) is directly embedded into Table 4 (2) below.

[0331] In order to make it easier for the device to read, the 2-bit indication under the master-slave position indication method can be directly integrated into the 9-bit absolute position indication table. That is, the 2-bit 80MHz absolute position value in the original absolute position table is replaced with the corresponding relative position value. As shown in the table in Example (1), the first row has: the lowest 80MHz (00 under absolute position) corresponds to a0, b1, c2, d2, and the other rows are similar. In this way, the device can directly read Table 4 (2) without having to perform bit value mapping and conversion before reading the resource unit indication to finally obtain the allocated RU / MRU.

[0332] Based on the above motivation, the 2-bit indication of the 9-bit master-slave position indication method can be shown in Table 4(2) as follows:

[0333] The master-slave position indication method, wherein the 2-bit indication can indicate the position of the smallest RU in RU / MRU in 80MHz.

[0334] Table 4(2) Specification 30 / 75 pages 36 CN 121057024 A

[0335] Specification 31 / 75 pages 37 CN 121057024 A

[0336] Specification 32 / 75 pages 38 CN 121057024 A

[0337] Specification 33 / 75 pages 39 CN 121057024 A

[0338]

[0339] In another implementation of embodiment (3), the above Table 4(2) can be designed as 4 tables.

[0340] According to the correspondence of Table 4(1) above, Table 4(2) can also be divided into the following 4 tables as Table 4(2-a), Table 4(2b), Table 4(2c), and Table 4(2d), that is, only the table containing case a or case b or case c or case d, and a table does not need to involve the BS or BO instructions of other cases.

[0341] When it is Case a, read Table 4(2a) below:

[0342] Table 4(2a)

[0343] Specification 34 / 75 pages 40 CN 121057024 A

[0344] Specification 35 / 75 pages 41 CN 121057024 A

[0345] Specification 36 / 75 pages 42 CN 121057024 A

[0346]

[0347] When it is Case b, see Table 4(2b) below:

[0348] Table 4(2b)

[0349] Specification 37 / 75 pages 43 CN 121057024 A

[0350] Specification 38 / 75 pages 44 CN121057024 A

[0351] Specification 39 / 75 pages 45 CN 121057024 A

[0352]

[0353] When it is Case c, it is Table 4 (2c) as follows:

[0354] Table 4 (2c)

[0355] Specification 40 / 75 pages 46 CN 121057024 A

[0356] Specification 41 / 75 pages 47 CN 121057024 A

[0357] Specification 42 / 75 pages 48 CN 121057024 A

[0358]

[0359] When it is Case d, it is Table 4 (2d) as follows:

[0360] Table 4 (2d)

[0361] Specification 43 / 75 pages 49 CN 121057024 A

[0362] Specification 44 / 75 pages 50 CN 121057024 A

[0363] Specification 45 / 75 pages 51 CN 121057024 A

[0364]

[0365] Example (4): 2-bit position indication + 7-bit table indication method

[0366] This is another technical solution for implementing RU allocation subfield table indication, that is, only the 7-bit table indication method is used to indicate the specific RU / MRU under the 80MHz position determined by bits BS and BO. Taking 3*996+484 as an example, when the 7-bit indication is 105 (B7-B1), there are four MRU cases:

[0367] -MRU1:RU2(484T)+RU2(996T)+RU2(2x996T)

[0368] -MRU3:RU4(484T)+RU1(996T)+RU2(2x996T)

[0369] -MRU5:RU6(484T)+RU4(996T)+RU1(2x996T)

[0370] -MRU7:RU8(484T)+RU3(996T)+RU1(2x996T)

[0371] According to the 2-bit BS and B0 indication, it can be determined whether MRU1, MRU3, MRU5, or MRU7 is selected. That is, the idea of ​​this method is that after giving a set of RU / MRU corresponding to a certain 7-bit value, the specific MRU in the set can be determined by combining the two bits BS and BO.

[0372] It should be noted that MRUx or RUx under the corresponding resource unit size can represent a specific RU / MRU location.

[0373] The two bits BS-BO adopt the master-slave position indication method, where the 2-bit indication can indicate the position of the smallest RU in the RU / MRU in 80MHz. Specifically, as shown in Table 4(3):

[0374] Table 4(3) Specification 46 / 75Page 52 CN 121057024 A

[0375] Specification 47 / 75 Page 53 CN 121057024 A

[0376] Specification 48 / 75 Page 54 CN 121057024 A

[0377]

[0378] The meaning of MRU in the above tables can be found in the appendix MRU index as shown in Tables 4(4a) and 4(4b).

[0379] MRU Index is the MRU index. Note that the MRU index does not represent the value obtained by 7 bits or 9 bits in the resource unit allocation subfield, but can be understood as the MRU pattern, as shown in Tables 4(4a) and 4(4b) below for 160MHz and 320MHz.

[0380] Table 4(4a)

[0381]

[0382] Table 4(4b)

[0383] Table 50 / 75, CN 121057024 A

[0384]

[0385] It should be understood that the mapping relationship between the index and RU / MRU involved in the tables provided in the embodiments of this application, such as Tables 4(1), 4(2), 4(2a), 4(2b), 4(2c), 4(2d), 4(3), 4(4a), and 4(4b), is only illustrative. In specific implementations, other table forms can be derived based on the technical solutions provided in the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. It should also be understood that the above-mentioned instruction master-slave instruction method provided in the embodiments of this application can be combined with other embodiments in this application, provided that the solutions do not conflict, for example, it can be combined with the resource unit instruction method and device provided in embodiments one to six.

[0386] Embodiment two, which mainly describes the resource unit instruction method 120.

[0387] Please refer to FIG15. FIG15 is a schematic flowchart of a resource unit instruction method 120 provided in the embodiments of this application. The resource unit instruction method 120 shown in FIG15 is different from the resource unit instruction method 110 shown in FIG6 above in that the frequency band range indication is different in size, that is, the frequency band range indication in the resource unit instruction method 120 is used to indicate the 40MHz where the smallest RU in the MRU indicated by the resource unit indication is located. As shown in Figure 15, the resource unit indication method 120 may include, but is not limited to, the following steps:

[0388] S121, Access point determines trigger frame;

[0389] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site, the resource unit allocation subfield including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resources allocated to the corresponding site.Source Unit MRU, the frequency band range indicator is used to indicate the 40MHz where the smallest resource unit RU in the MRU indicated by the resource unit indicator is located.

[0390] S122, the access point sends a trigger frame;

[0391] S123, the station receives a trigger frame from the access point;

[0392] S124, the station determines the assigned MRU according to the frequency band range indicator and the resource unit indicator.

[0393] In one implementation, the station determining the assigned MRU according to the frequency band range indicator and the resource unit indicator in step S124 includes: the station determines the 40MHz indicated by the frequency band range indicator, and can know that the smallest RU in the MRU indicated by the resource unit indicator is in this 40MHz, and then combines the index of the resource unit indicator to know the assigned MRU.

[0394] For example, the MRU indicated by the resource unit indicator is (52+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 40MHz range where 26-tone RU is located in (52+26)-tone RU; or the MRU indicated by the resource unit indicator is (106+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 40MHz range where 26-tone RU is located in (106+26)-tone RU; or the MRU indicated by the resource unit indicator is (484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 40MHz range where 242-tone RU is located in (484+242)-tone RU; or the MRU indicated by the resource unit indicator is (996 Specification 51 / 75 pages 57 CN 121057024 A +484)-tone The frequency band range indicated by the RU (Resource Unit Indicator) is 40MHz, where the 484-tone RU is located within the (996+484)-tone RU; or the MRU indicated by the Resource Unit Indicator is a (2*996+484)-tone RU, and the frequency band range indicated by the RU is 40MHz, where the 484-tone RU is located within the (2*996+484)-tone RU; or the MRU indicated by the Resource Unit Indicator is a 3*996-tone RU, and the frequency band range indicated by the RU is 40MHz, where one of the 996-tone RUs is located within the 3*996-tone RU; or the MRU indicated by the Resource Unit Indicator is a (3*996+484)-tone RU, and the frequency band range indicated by the RU is 40MHz, where the 484-tone RU is located within the (3*996+484)-tone RU. The RU is located in the 40MHz band; or the MRU indicated by the resource unit indicator is (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is (996+484+242)-tone.The 40MHz of the 242-tone RU in the RU.

[0395] In this case, the 40MHz of the 996-tone RU indicates the 40MHz covered by the 996-tone RU. Since there are two 40MHz covered by the 996-tone RU, the frequency range indicator can indicate the position of either of the two 40MHz, or predefined the position of the 40MHz with the lowest frequency among the two 40MHz, or predefined the position of the 40MHz with the highest frequency among the two 40MHz.

[0396] Assuming that the resource unit allocation subfield has 9 bits, the frequency band range indicator is the first to third bits in the resource unit allocation subfield, denoted as B0, B1, and B2. Then, B0, B1, and B2 indicate one 40MHz in the 320MHz. As shown in Table 5, Table 3 shows the 40MHz that the frequency band range indicator (B0, B1, B2) needs to indicate, so as to indicate the 40MHz of the smallest RU in the MRU indicated by the resource unit indicator. Among them, each 40MHz frequency band range in 320MHz is named in ascending order of frequency as the first 40MHz, the second 40MHz, the third 40MHz, the fourth 40MHz, the fifth 40MHz, the sixth 40MHz, the seventh 40MHz, and the eighth 40MHz. As shown in Table 5, B0, B1, and B2 are different values, representing the above eight 40MHz bands respectively.

[0397] Table 5 Frequency band range indication (B0, B1, B2) indicates each frequency band range

[0398]

[0399] The resource unit indication is the fourth to ninth bits in the resource unit allocation subfield, denoted as B3 to B8. Then, combining the frequency band range indication and each RU or MRU to be indicated, the RU or MRU to be indicated by the resource unit indication can be as shown in Table 6, but is not limited to Table 6. The first column in Table 6 contains the values ​​of B3 to B8, which can be referred to as the indexes indicated by the resource unit indicator; the second column in Table 6 represents the resource unit size corresponding to each index; the third column in Table 6 represents the number of indexes corresponding to each resource unit size, i.e., the number of entries. Each index in Table 6 can be combined with the frequency band range indicator to determine the corresponding RU or MRU.

[0400] Table 6 Resource Unit Indicators (B8 to B3) Entries Specification 52 / 75 Page 58 CN 121057024 A

[0401]

[0402] As shown in Figure 3, there are 18 positions for 26-tone RUs in 40MHz. Based on the 40MHz indicated by the frequency band range indicator, the resource unit indicator indicates one of the indices 0 to 17 shown in Table 6 to indicate a corresponding 26-tone RU in that 40MHz. It can be seen that this implementation reduces the number of indices required to indicate the position of a 26-tone RU in the bandwidth.

[0403] As shown in Figure 3, there are 52-tone RUs in 40MHz...The RU has 8 positions. The resource element indicator indicates a 52-tone RU in the corresponding 40MHz by indicating one of the indices 18 to 25 shown in Table 6, based on the 40MHz indicated by the frequency band range indicator. It can be seen that this embodiment reduces the number of indices required to indicate the position of the 52-tone RU in the bandwidth.

[0404] As shown in FIG3, the 106-tone RU in 40MHz has 4 positions. The resource element indicator indicates a 106-tone RU in the corresponding 40MHz by indicating one of the indices 26 to 29 shown in Table 6, based on the 40MHz indicated by the frequency band range indicator.

[0405] As shown in FIG3, the 242-tone RU in 40MHz has 2 positions. The resource element indicator indicates a 242-tone RU in the corresponding 40MHz by indicating one of the indices 30 to 31 shown in Table 6, based on the 40MHz indicated by the frequency band range indicator.

[0406] As shown in Figure 3, there is one position for the 484-tone RU in the 40MHz range. The resource element indicator, based on the 40MHz indicated by the frequency band range indicator, indicates the corresponding 40MHz as the 484-tone RU by indicating index 32 as shown in Table 6.

[0407] As shown in Figure 3, the 996-tone RU occupies two 40MHz ranges. Therefore, the frequency band range indicator can indicate either of the two 40MHz ranges. Correspondingly, the resource element indicator can, based on the 40MHz indicated by the frequency band range indicator, indicate the 996-tone RU corresponding to the 40MHz range by indicating index 33 as shown in Table 6. For example, if the frequency band range indicator is 000, based on Table 5, the 40MHz indicated by the frequency band range indicator is the first 40MHz in 320MHz; if the index indicated by the resource unit indicator is 33, based on Table 6, the RU corresponding to index 33 is a 996-tone RU. Based on the first 40MHz in 320MHz indicated by the frequency band range indicator, the 996-tone RU indicated by the resource unit indicator is the first 996-tone RU in 320MHz. Instruction manual, pages 53 / 75, 59 CN 121057024 A

[0408] Since 2*996-tone RUs cannot span two 160MHz ranges, meaning the frequency band of the 2*996-tone RUs can only be the primary 160MHz or the secondary 160MHz, the frequency band indication can indicate the 40MHz range of one of the 2*996-tone RUs, thus revealing the location of the 2*996-tone RUs. Therefore, the resource unit indication only needs one index 34. For example, the site root...According to the frequency band range indication and Table 5, it can be determined that the 40MHz where the smallest RU in the MRU is located is the first 40MHz. Combined with the RU size corresponding to index 34 indicated by the resource unit indication, which is 2*996-toneRU, the station can know that the allocated 2*996-toneRU corresponds to the main 160MHz.

[0409] There is only one 4*996-tone RU in 320MHz, so the resource unit indication can indicate an index 35, so that the station can know that the allocated RU is a 4*996-tone RU.

[0410] In 20MHz, (52+26)-tone RU has three combinations as shown in Figure 7. Therefore, based on the 40MHz where the 26-tone RU is located indicated by the frequency band range indication, the resource unit indication also needs to indicate one of the indices 36 to 41 to indicate a (52+26)-tone RU in the corresponding 40MHz. The correspondence between each index in indexes 36 to 41 and each of the six (52+26)-tone RUs can be determined by sorting the six (52+26)-tone RUs from low to high according to the index size.

[0411] The (106+26)-tone RUs in 20MHz have two combinations as shown in Figure 8. Therefore, the (106+26)-tone RUs in 40MHz have four (i.e., 2*2) combinations. Therefore, based on the 40MHz where the 26-tone RU indicated by the frequency band range indicator is located, the resource unit indicator also needs to indicate one of the indices 42 to 45 to indicate the corresponding (106+26)-tone RU in that 40MHz. The correspondence between each index in indices 42 to 45 and each of the eight (106+26)-tone RUs can be determined by sorting the starting frequencies of the eight (106+26)-tone RUs from low to high according to the index size.

[0412] The (484+242)-tone RUs in 80MHz have four combinations as shown in Figure 9. Therefore, based on the 40MHz where the 242-tone RU indicated by the frequency band range indicator is located, the position of the 484-tone RU in the (484+242)-tone RU is also fixed. Therefore, the resource unit indicator only needs to indicate one of the two positions of the 242-tone RU in this 40MHz. Therefore, the resource unit indicator also needs to indicate one of indices 46 to 47 to indicate the corresponding (484+242)-tone RU. The correspondence between each index in indices 46 and 47 and the two positions of the 242-tone RU in that 40MHz frequency range can be determined by...According to the index size, the 242-tone RUs in these two positions are sorted from low to high according to their starting frequencies. For example, index 46 corresponds to the first 242-tone RU in 40MHz, and index 47 corresponds to the second 242-tone RU in 40MHz.

[0413] Since the (996+484)-tone RU can be located in the main 160MHz or the secondary 160MHz, the (996+484)-tone RU in 160MHz has four combinations as shown in FIG10. Therefore, based on the 40MHz where the 484-tone RU indicated by the frequency band range indicator is located, the station can directly know the location of the 996-tone RU and the 484-tone RU in the (996+484)-tone RU, so the resource unit indicator only needs to indicate one index 48.

[0414] Thus, for the access point side, the frequency band range indicator can indicate the 40MHz where the 484-tone RU in the (996+484)-tone RU is located, and the resource unit indicator can indicate index 48 to inform the station that the allocated RU size is (996+484)-tone RU. Accordingly, after receiving the resource unit allocation subfield, the station can determine the location of the allocated (996+484)-tone RU based on the 40MHz indicated by the frequency band range indicator, combined with the index 48 indicated by the resource unit indicator and Table 6.

[0415] In one embodiment, the (2*996+484)-tone RU indicated by the resource unit indicator is limited to the lowest frequency or the highest frequency 240MHz in the 320MHz range. Thus, the (2*996+484)-tone RU in 240MHz has six combinations as shown in Figure 11. That is, for the lowest or highest frequency 240MHz in 320MHz, the (2*996+484)-tone RU has six combinations. Based on the 40MHz where the 484-tone RU in the (2*996+484)-tone RU indicated by the frequency band range indicator is located, the other two 996-tone RUs can be the two 996-tone RUs in the lowest frequency 240MHz, or they can be the two 996-tone RUs in the highest frequency 240MHz. That is, the resource unit indicator also needs two indices, such as index 52 and index 53, one index corresponding to the lowest frequency 240MHz and one index corresponding to the highest frequency 240MHz.

[0416] In another embodiment, for the sake of simplifying the logic, the (2*996+484) tone indicated by the resource unit indicator is not limited.RUs can only exist in the lowest or highest 240MHz of 320MHz. Thus, based on the 40MHz of the (2*996+484)-tone RUs indicated by the frequency band range indicator, the other two 996-tone RUs can be any two of the other three 996-tone RUs in 320MHz, excluding the 80MHz of the 484-tone RU. Therefore, the resource unit indicator also needs to indicate three indices, namely indices 49 to 51, to indicate the position of the corresponding (2*996+484)-tone RU.

[0417] The (3*996)-tone RUs in 320MHz have four combinations as shown in Figure 12. Therefore, based on the 40MHz of the 996-tone RU indicated by the frequency band range indicator, there are three options for the other two 996-tone RUs in the (3*996)-tone RUs in the 320MHz. Therefore, the resource unit indicator also needs to indicate one of the indices 52 to 54 to indicate one of the positions of the other two 996-tone RUs in the 320MHz that correspond to the 996-tone RU combination with the 40MHz. The correspondence between each index in indexes 52 to 54 and one of the three options of the other two 996-tone RUs can be sorted one-to-one according to the index size, with the starting frequencies of the two 996-tone RUs in each option arranged from low to high.

[0418] For example, the size of the MRU indicated by the resource unit indicator is (3*996)-tone RU, and the size of the index indicated by the resource unit indicator corresponds one-to-one with the starting frequencies of the optional combinations of the (3*996)-tone RUs arranged from low to high. Therefore, when the access point assigns a (3*996)-tone RU as shown in the last row of Figure 12 to a site, it needs to refer to Table 5 to set B0B1B2 corresponding to the site to 000 (or 001), and B3 to B8 to 52. Thus, the site learns that the 40MHz of the smallest RU of this MRU is the first or second 40MHz in the 320MHz range, and the RU size corresponding to the indices indicated by B3 to B8 is a (3*996)-tone RU, with indices of 52 for B3 to B8. Since index 52 in Table 6 corresponds to the (3*996)-tone RU shown in the third row of Figure 12, index 53 corresponds to the (3*996)-tone RU shown in the second row of Figure 12, and index 54 corresponds to the (3*996)-tone RU shown in the first row of Figure 12, the site can know from index 52 that the assigned (3*996)-tone RU is the (3*996)-tone RU shown in the third row of Figure 12.

[0419] In 320MHz, the (3*996+484)-tone RU has eight combinations as shown in Figure 13. Therefore, based on the 40MHz where the 484-tone RU is located as indicated by the frequency band range indicator, the remaining three 996-tone RUs in 320MHz have only one choice, and the position of the 484-tone RU is determined, so the resource unit indicator only needs one index 54.

[0420] In an 80MHz, the (484+242)-tone RU has four combinations as shown in Figure 14, so in 160MHz, the (996+484+242)-tone RU has eight combinations. Therefore, based on the 40MHz where the 242-tone RU is located as indicated by the frequency band range indicator, the 996-tone RUs outside the 80MHz in 160MHz have only one choice, but the 242-tone RU has two positions in the 40MHz, so the resource unit indicator also needs to indicate one of the indices 55 to 56 to indicate one position of the 242-tone RU in the 40MHz. Among them, the correspondence between each index in indexes 55 to 56 and the two positions of the 242-tone RU in 40MHz can be sorted one-to-one according to the starting frequency of the two positions of the 242-tone RU in 40MHz from low to high according to the index size.

[0421] It can be seen from the above analysis that since the frequency band range indicated by the frequency band range indicator can also tell the frequency band range where the smallest RU in the MRU is located, it is beneficial for the resource unit indicator to use fewer indices to indicate the various possible positions of the MRU respectively. For example, for the eight combinations of (996+484+242)-tone RU, as shown in Table 6, the resource unit indicator only needs 2 indices to indicate each combination respectively. For another example, for the eight combinations of (3*996+484)-tone RU, as shown in Table 6, the resource unit indicator only needs 1 index to indicate each combination respectively. Compared to the method where the band range indication only indicates the lowest 80MHz related to the MRU, the band range indication in this resource unit indication method 120 can carry more information, specifically the 40MHz containing the smallest RU in the MRU (as described on pages 55 / 75 of the specification, CN 121057024 A). For example, if the band range indication only indicates the lowest 80MHz related to the MRU, then for the four combinations of (996+484)-tone RUs shown in Figure 10, the resource unit indication would require four indices to indicate each combination. However, if the band range indication is used to indicate the 40MHz containing the smallest RU in the MRU, as shown in Table 6, the resource unit indication only needs one index to combine with the band range indication to indicate each combination of (996+484)-tone RUs. Therefore, this...In resource unit indication method 120, the frequency band range indication can carry more information, which is beneficial for the resource unit indication to use fewer indices to indicate the various possible locations of the MRUs.

[0422] In this embodiment of the application, the frequency band range indication is used to indicate the frequency band range where the smallest RU in the MRU is located. In addition to 80MHz in resource unit indication method 110 and 40MHz in resource unit indication method 120, it can also be 160MHz, 240MHz or 320MHz. That is, in one resource unit indication method, the frequency band range indication is used to indicate 160MHz where the smallest RU in the MRU is located. In another resource unit indication method, the frequency band range indication is used to indicate 240MHz where the smallest RU in the MRU is located. In yet another resource unit indication method, the frequency band range indication is used to indicate 320MHz where the smallest RU in the MRU is located. For related content of these resource unit indication methods, please refer to the above-mentioned resource unit indication method 110 and resource unit indication method 120, which will not be described in detail here.

[0423] Furthermore, in the above-described resource unit indication methods, when the minimum RU in the MRU is greater than the frequency band range indicated by the frequency band range indicator, the frequency band range indicated by the frequency band range indicator can be the lowest frequency band range or the highest frequency band range covered by the minimum RU, or the selection of the frequency band range indicated by the frequency band range indicator can be any frequency band range or a preset frequency band range. For example, in one resource unit indication method, when the frequency band range indicated by the frequency band range indicator is less than the minimum RU in the MRU, then the frequency band range indicated by the frequency band range indicator is the lowest frequency band range corresponding to the minimum RU. As another example, in one resource unit indication method, when the frequency band range indicated by the frequency band range indicator is less than the minimum RU in the MRU, then the frequency band range indicated by the frequency band range indicator is the highest frequency band range corresponding to the minimum RU.

[0424] For example, in the resource unit indication method 120 above, assuming the MRU indicated by the resource unit indication is a (3*996)-tone RU, the smallest RU of the (3*996)-tone RU is a 996-tone RU. Since the 40MHz indicated by the frequency band range indication is smaller than the smallest RU, the 40MHz indicated by the frequency band range indication can be any 40MHz of the 996-tone RU, or it can be the lowest frequency 40MHz or the highest frequency 40MHz of the 996-tone RU that is predefined.

[0425] In addition, if there are multiple smallest RUs in the MRU, the frequency band range indicated by the frequency band range indication can be arbitrary or preset, such as the frequency band range where the first smallest RU is located or the frequency band range where the last smallest RU is located. For example, in the resource unit indication method 110 above, (3*996)-toneThere are three minimum RUs, all of which are 996-tone RUs. Therefore, the 80MHz indicated by the frequency band range indicator can be the 80MHz of any 996-tone RU, or the 80MHz of the first 996-tone RU in the (3*996)-tone RUs, or the 80MHz of the last 996-tone RU in the (3*996)-tone RUs.

[0426] Optionally, this application also provides some resource unit indication methods. If the MRU indicated by the resource unit indication is a (2*996+484)-tone RU, then when the 80MHz indicated by the frequency band range indication is the first or second 80MHz in 320MHz, it means that the 240MHz where the (2*996+484)-tone RU is located is the first to third 80MHz in 320MHz. When the 80MHz indicated by the frequency band range indication is the third or fourth 80MHz in 320MHz, it means that the 240MHz where the (2*996+484)-tone RU is located is the second to fourth 80MHz in 320MHz. In this way, the station can know the 240MHz where the (2*996+484)-tone RU indicated by the resource unit indication is located based on the frequency band range indication.

[0427] Embodiment 3, which mainly describes the resource unit indication method 210.

[0428] This application also provides a resource unit indication method 210, in which the frequency band range specification page 56 / 75 62 CN 121057024 A indicates the frequency band range in which some or all of the resource units RU are located, excluding the RU / MRU indicated by the resource unit indication. Please refer to Figure 16. Figure 16 is a flowchart illustrating a resource unit indication method 210 provided in an embodiment of this application. As shown in Figure 16, the resource unit indication method 210 may include, but is not limited to, the following steps:

[0429] S211, the access point determines the trigger frame;

[0430] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit allocation subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the RU / MRU allocated to the corresponding site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs other than the RU / MRUs are located in the bandwidth;

[0431] S212, the access point sends the trigger frame;

[0432] S213, the site receives the trigger frame;

[0433] S214, the site determines the allocated RU / MRU according to the resource unit indication and the frequency band range indication.

[0434] The site determining the allocated RU / MRU according to the resource unit indication and the frequency band range indication may include: the site selects from the relevant data.The RU / MRU indicated by the resource unit indicator is determined from the frequency range outside the frequency range indicated by the frequency band range indicator within 320MHz.

[0435] In one embodiment, the frequency band range indicated by the frequency band range indicator is a 40MHz band; the MRU indicated by the resource unit indicator is determined from the frequency range other than the 40MHz indicated by the frequency band range indicator.

[0436] For example, if the frequency band range indicated by the frequency band range indicator is the first 40MHz in 320MHz, then the MRU indicated by the resource unit indicator is determined from the frequency range other than the first 40MHz in 320MHz. If the MRU indicated by the resource unit indicator is a (3*996+484)-tone RU, then as shown in FIG13, the (3*996+484)-tone RU indicated by the resource unit indicator is determined from the frequency range other than the first 40MHz in 320MHz, i.e., a (3*996+484)-tone RU shown in the second row of FIG13.

[0437] In another embodiment, the frequency band indicated by the frequency band range indicator is an 80MHz band; the MRU indicated by the resource unit indicator is determined from the frequency band range other than the 80MHz indicated by the frequency band range indicator.

[0438] For example, if the frequency band range indicated by the frequency band range indicator is the first 80MHz of 320MHz, then the RU / MRU indicated by the resource unit indicator is determined from the second to fourth 80MHz of the 320MHz other than the first 80MHz; if the MRU indicated by the resource unit indicator is a 3*996-tone RU, then the 3*996-tone RU corresponding to the second to fourth 80MHz is the MRU allocated to the site, as shown in the first row of FIG12.

[0439] In yet another embodiment, the frequency band range indicated by the frequency band range indicator is a 160MHz band; the MRU indicated by the resource unit indicator is determined from the remaining 160MHz other than the 160MHz indicated by the frequency band range indicator.

[0440] For example, suppose the frequency band range indicated by the frequency band range indicator is the main 160MHz within 320MHz; the MRU indicated by the resource unit indicator is determined from the main 160MHz within 320MHz. If the size of the MRU indicated by the resource unit indicator is (996+484)-tone RU, as shown in FIG10, the resource unit indicator also needs to use 4 indices to use one index to indicate one (996+484)-tone RU in FIG10.

[0441] It can be seen that in this resource unit indicator method 210, the frequency band range indicated by the frequency band range indicator is a frequency band range unrelated to the RU / MRU indicated by the resource unit indicator, that is, the site needs to select from the frequency band range indicated by the frequency band range indicator.The resource unit indication method 220 is mainly described in the frequency band range outside the specified frequency band range.

[0442] Embodiment 4. This embodiment 4 mainly describes the resource unit indication method 220.

[0443] This application also provides a resource unit indication method 220, in which the frequency band range indication is used to indicate a frequency band range in the bandwidth, and the RU / MRU assigned to the site includes RUs in the bandwidth other than the frequency band range. (See specification page 57 / 75, 63 CN 121057024 A RU) Please refer to Figure 17. Figure 17 is a flowchart illustrating a resource unit indication method 220 provided in an embodiment of this application. As shown in Figure 17, the resource unit indication method 220 may include, but is not limited to, the following steps:

[0444] S221, the access point determines the trigger frame;

[0445] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit allocation subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the RU / MRU allocated to the corresponding site, and the frequency band range indication is used to indicate a frequency band range of the bandwidth. The MRU includes the remaining RUs in the bandwidth other than the frequency band range indicated by the frequency band range indication;

[0446] S222, the access point sends the trigger frame;

[0447] S223, the site receives the trigger frame;

[0448] S224, the site determines the allocated RU / MRU according to the resource unit indication and the frequency band range indication.

[0449] The site may determine the allocated RU / MRU based on the resource unit indication and the frequency band range indication by: the site taking the RU / MRU corresponding to the frequency band range outside the frequency band range indicated by the frequency band range indication in the 320MHz range as the allocated RU / MRU.

[0450] Optionally, the frequency band range indicated by the frequency band range indication is 40MHz in the bandwidth; the MRU indicated by the resource unit indication includes the RUs remaining in the bandwidth other than the 40MHz indicated by the frequency band range indication.

[0451] For example, if the frequency band range indicated by the frequency band range indicator is the first 40MHz in 320MHz, then the RUs in that 320MHz excluding the first 40MHz, as shown in FIG13, are 484-tone RUs and three 996-tone RUs, respectively. If the MRU indicated by the resource element indicator is (3*996+484)-tone RUs, then the MRUs are the RUs in that 320MHz excluding the first 40MHz, as shown in the second row of FIG13 (3*996+484)-tone RUs.

[0452] Optionally, the frequency band range indicated by the frequency band range indicator is 80MHz in the bandwidth; the MRUs indicated by the resource element indicator include the remaining RUs in the bandwidth excluding the 80MHz indicated by the frequency band range indicator.

[0453] For example, if the frequency band range indicated by the frequency band range indicator is the first 80MHz in 320MHz, then the second to fourth 80MHz in 320MHz, excluding the first 80MHz, if the MRU indicated by the resource unit indicator is a 3*996-tone RU, then the 3*996-tone RUs corresponding to the second to fourth 80MHz are the MRUs allocated to the site, as shown in the first row of Figure 12.

[0454] In another embodiment, the frequency band range indicated by the frequency band range indicator is 160MHz in the bandwidth; the MRUs indicated by the resource unit indicator include the remaining RUs excluding the 160MHz indicated by the frequency band range indicator.

[0455] For example, assuming the frequency band range indicated by the frequency band range indicator is the primary 160MHz in 320MHz, then the MRUs indicated by the resource unit indicator are the 2*996-tone RUs corresponding to the primary 160MHz.

[0456] As can be seen, in the resource unit indication method 220, the RU / MRU indicated by the resource unit indication is the RU / MRU corresponding to a frequency band range outside the frequency band range indicated by the frequency band range indication. This is beneficial for saving the number of indexes required for the resource unit indication, and can also simplify the processing logic, which is beneficial for reducing the processing complexity of the site.

[0457] Embodiment 5, which mainly describes the resource unit indication method 310.

[0458] This application also provides a resource unit indication method, in which the granularity of the frequency band range indicated by the frequency band range indication is related to the RU / MRU indicated by the resource unit indication. When the frequency band occupied (or located in) by the RU / MRU is less than or equal to 80MHz, the granularity of the frequency band indicated by the frequency band range indicator is 80MHz; when the frequency band occupied by the RU / MRU is greater than 80MHz and less than or equal to 160MHz, the granularity of the frequency band indicated by the frequency band range indicator is 160MHz; when the frequency band occupied by the RU / MRU is greater than 160MHz and less than 320MHz, the granularity of the frequency band indicated by the frequency band range indicator is 320MHz.

[0459] Alternatively, the possibility of 240MHz indicated by the frequency band range indicator can also be added. Then, when the frequency band range occupied by the RU / MRU is greater than 160MHz and less than or equal to 240MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 240MHz; when the frequency band range occupied by the RU / MRU is greater than 240MHz and less than or equal to 320MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 320MHz.

[0460] In this document, the frequency band range indicated by the frequency band range indicator actually refers to the size and location of the frequency band range, that is...The frequency range is located within the bandwidth or the frequency band range within the bandwidth. For example, the frequency band range indicator indicates that the frequency band range is 80MHz within the bandwidth, indicating that the granularity of the frequency band range indicated by the frequency band range indicator is 80MHz and the location of that 80MHz within the bandwidth.

[0461] Assume that the frequency band range indicator is the first two bits in the resource unit allocation subfield, denoted as B0 and B1. Wherein:

[0462] When the granularity of the frequency band range indicated by the frequency band range indicator is 80MHz, B0 and B1 can represent four states to indicate four 80MHz within 320MHz respectively;

[0463] When the granularity of the frequency band range indicated by the frequency band range indicator is 160MHz, in one way, 0 or 1 of B0 indicates the highest frequency 160MHz or the lowest frequency 160MHz, where B1 can be reserved; in another way, B1 can also be used. The value of B0 can be 0 or 1 to indicate whether the frequency is the highest 160MHz or the lowest 160MHz, and B0 is reserved; another way is that B0 corresponds to the highest 160MHz and B1 corresponds to the lowest 160MHz. If B0 is set to 1, it means that the frequency range indicated by the frequency range indicator is the highest 160MHz. If B1 is set to 1, it means that the frequency range indicated by the frequency range indicator is the lowest 160MHz; yet another way is to use two of the four states represented by B0 and B1, such as 00 corresponding to the lowest 240MHz and 01 corresponding to the highest 240MHz.

[0464] When the granularity of the frequency range indicated by the frequency range indicator is 320MHz, one way is that since there are no multiple 320MHz positions, this application does not limit the value of B0 and B1, and they can be reserved or set arbitrarily; another way is to use one of the four states represented by B0 and B1, such as 00, to indicate that the frequency range indicated by the frequency range indicator is 320MHz.

[0465] When the granularity of the frequency band indicated by the frequency band range indicator is 240MHz, B0 and B1 can represent four states to indicate four combinations of 240MHz within 320MHz respectively;

[0466] When the 240MHz where the MRU is located is required to be a continuous 240MHz, in one mode, B0 corresponds to the highest frequency of 240MHz, and B1 corresponds to the lowest frequency of 240MHz. If B0 is set to 1, it indicates that the frequency band indicated by the frequency band range indicator is the highest frequency of 240MHz; if B1 is set to 1, it indicates that the frequency band indicated by the frequency band range indicator is the lowest frequency of 240MHz; In another mode, two of the four states represented by B0 and B1 can be used to represent a continuous 240MHz, such as 00 corresponding to the lowest frequency of 240MHz and 01 corresponding to the highest frequency of 240MHz.

[0467] The resource unit indication method 310 is illustrated using the example of "frequency band range indication used to indicate the frequency band range where the RU / MRU indicated by the resource unit indication is located". Please refer to Figure 18, which is a flowchart of a resource unit indication method 310 provided in this application embodiment. As shown in Figure 18, the resource unit indication method 310 may include, but is not limited to, the following steps:

[0468] S311, the access point determines the trigger frame;

[0469] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit allocation subfield includes a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the RU / MRU allocated to the corresponding site; the frequency band range indication is used to indicate the frequency band range where the RU / MRU indicated by the resource unit indication is located;

[0470] S312, the access point sends the trigger frame;

[0471] S313, the site receives the trigger frame;

[0472] S314, the site determines the allocated RU / MRU according to the frequency band range indication and the resource unit indication.

[0473] In this method, the relationship between the MRU / RU indicated by the resource unit indicator and the frequency band range indicated by the frequency band range indicator can be as follows:

[0474] When the frequency band range of the MRU / RU indicated by the resource unit indicator is less than or equal to 80MHz, the frequency band range indicated by the frequency band range indicator is an 80MHz band;

[0475] When the frequency band range of the MRU / RU indicated by the resource unit indicator is greater than 80MHz and less than or equal to 160MHz, the frequency band range indicated by the frequency band range indicator is a 160MHz band;

[0476] When the frequency band range of the MRU / RU indicated by the resource unit indicator is greater than 160MHz and less than or equal to 240MHz, the frequency band range indicated by the frequency band range indicator is a 240MHz or 320MHz band;

[0477] When the frequency band range of the MRU / RU indicated by the resource unit indicator is greater than 240MHz and less than or equal to 320MHz, the frequency band range indicated by the frequency band range indicator is one 320MHz in the bandwidth.

[0478] Therefore, under the relationship between the MRU / RU indicated by the resource unit indicator and the frequency band range indicated by the frequency band range indicator, the number of indexes required to be indicated by the resource unit indicator can be obtained by combining the RU / MRUs shown in Figures 3, 7 to 14 above, as shown in Table 7.

[0479] Table 7 Items that can be indicated by the resource unit indicator (B8 to B2) Specification 60 / 75 pages 66 CN 121057024 A

[0480] Specification 61 / 75 pages 67 CN 121057024 A

[0481]

[0482] The frequency band range of the RU / MRU indicated by the resource unit indicator is less than or equal to 80MHz, so the 80MHz indicated by the frequency band range indicator is the 80MHz of the RU / MRU. The number of entries corresponding to each RU / MRU size is equal to the number of selectable positions for that size RU / MRU in 80MHz.

[0483] Therefore, as shown in Table 7, the number of indices corresponding to a 26-tone RU is equal to the number of selectable positions for a 26-tone RU in 80MHz, which is 36. Each index corresponds to one 26-tone RU in 80MHz.

[0484] As shown in Table 7, the number of indices corresponding to a (52+26)-tone RU is equal to the number of selectable positions for a (52+26)-tone RU in 80MHz. As shown in Figure 7, there are 12 (i.e., 4*3) selectable positions for a (52+26)-tone RU in 80MHz. Therefore, the resource unit indicator needs 12 indices to indicate each (52+26)-tone RU in 80MHz.

[0485] As shown in Table 7, the number of indices corresponding to a (106+26)-tone RU is equal to the number of possible positions for a (106+26)-tone RU in 80MHz. As shown in Figure 8, there are 8 possible positions for a (106+26)-tone RU in 80MHz. Therefore, the resource unit indicator requires 8 indices to indicate each (106+26)-tone RU in 80MHz.

[0486] As shown in Table 7, the number of indices corresponding to a (484+242)-tone RU is equal to the number of possible positions for a (484+242)-tone RU in 80MHz. As shown in Figure 9, there are 4 possible positions for a (484+242)-tone RU in 80MHz. Therefore, the resource unit indicator requires 4 indices to indicate each (484+242)-tone RU in 80MHz.

[0487] The frequency band range of the RU / MRU indicated by the resource unit indicator is greater than 80MHz and less than or equal to 160MHz. Therefore, the 160MHz indicated by the frequency band range indicator is the 160MHz where the RU / MRU is located. The number of entries corresponding to each RU / MRU size is equal to the number of selectable positions for that size RU / MRU in 160MHz.

[0488] Therefore, as shown in Table 7, the number of indices corresponding to a 2*996-tone RU is equal to the number of selectable positions for a 2*996-tone RU in 160MHz. That is, the resource unit indicator only needs to indicate one index, and the site can determine the allocated 2*996-tone RU by combining the frequency band range indicator.

[0489] As shown in Table 7, the number of indices corresponding to a (996+484)-tone RU is equal to the number of selectable positions for a (996+484)-tone RU in 160MHz.The number of optional positions is 4 (as shown in Figure 10), that is, the resource unit indicator needs 4 indices to indicate each (996+484)-tone RU in 160MHz.

[0490] For the case where the frequency band range of the RU / MRU indicated by the resource unit indicator is greater than 160MHz and less than or equal to 320MHz, there are two implementation methods. Implementation method 1 introduces a frequency band range of 240MHz, and implementation method 2 does not introduce a frequency band range of 240MHz. The following describes them respectively.

[0491] Implementation method 1, the frequency band range indicated by the frequency band range indicator has a frequency band range of 240MHz.

[0492] The frequency band range of the RU / MRU indicated by the resource unit indicator is greater than 160MHz and less than or equal to 240MHz. The frequency band range indicated by the frequency band range indicator is 240MHz, that is, the 240MHz where the RU / MRU is located. Among them, the number of entries corresponding to each RU / MRU size is equal to the number of optional positions of the RU / MRU of that size in 240MHz. Instruction manual, pages 62 / 75, CN 121057024 A

[0493] The number of indices corresponding to (2*996+484)-tone RU is equal to the number of optional positions of (2*996+484)-tone RU in 240MHz, which is 6 (the number of optional positions shown in Figure 11). That is, the resource unit indicator needs 6 indices (such as indices 97 to 102 shown in Table 7) to indicate each (2*996+484)-tone RU in 240MHz.

[0494] The number of indices corresponding to 3*996-tone RU is equal to the number of optional positions of 3*996-tone RU in 240MHz, which is 1. That is, the resource unit indicator needs 1 index to indicate 3*996-tone RU in 240MHz.

[0495] The frequency band range of the RU / MRU indicated by the resource unit indicator is greater than 240MHz and less than or equal to 320MHz, and the frequency band range indicated by the frequency band range is 320MHz, which is the 320MHz range where the RU / MRU is located. Among them, the number of entries corresponding to each RU / MRU size is equal to the number of selectable positions of that size RU / MRU in 320MHz.

[0496] The number of indexes corresponding to the 4*996-tone RU is equal to the number of selectable positions of the 4*996-tone RU in 320MHz, that is, the resource unit indicator needs 1 index (such as index 68 shown in Table 7) to indicate the 4*996-tone RU.

[0497] The number of indices corresponding to (3*996+484)-tone RU is equal to the number of selectable positions of (3*996+484)-tone RU in 320MHz, which is 8 (as shown in Figure 13). That is, the resource unit indicates that 8 indices are needed (such as indices 107 to 114 shown in Table 7).The resource unit indicates each (3*996+484)-tone RU in 320MHz.

[0498] The number of indices corresponding to the (996+484+242)-tone RU is equal to the number of optional positions of the (996+484+242)-tone RU in 320MHz, which is 8 (2*4 optional positions shown in Figure 14). That is, the resource unit indicates that 8 indices (such as indices 115 to 122 shown in Table 7) are needed to indicate each (996+484+242)-tone RU in 320MHz.

[0499] Implementation method 2, the frequency band range indicated does not have a frequency band range of 240MHz.

[0500] The frequency band range where the RU / MRU indicated by the resource unit indicates is greater than 160MHz and less than or equal to 320MHz. The frequency band range indicated by the frequency band range is 320MHz, which is the 320MHz where the RU / MRU is located. The number of entries corresponding to each RU / MRU size is equal to the number of selectable positions for that size RU / MRU in 320MHz.

[0501] The number of indexes corresponding to (2*996+484)-tone RU is equal to the number of selectable positions for (2*996+484)-tone RU in 320MHz, which is 12 (2*6 selectable positions shown in Figure 11). That is, the resource unit indicates that 12 indexes are needed to indicate each (2*996+484)-tone RU in 320MHz.

[0502] The number of indexes corresponding to 4*996-tone RU is equal to the number of selectable positions for 4*996-tone RU in 320MHz, which is equal to the number of selectable positions for 4*996-tone RU in 320MHz. That is, the resource unit indicates that 1 index (such as index 68 shown in Table 7) is needed to indicate the 4*996-tone RU.

[0503] The number of indices corresponding to a 3*996-tone RU is equal to the number of selectable positions of a 3*996-tone RU in 320MHz, which is 4 (as shown in Figure 12). That is, the resource unit indicates that 4 indices (such as indices 103 to 106 shown in Table 7) are needed to indicate each 3*996-tone RU in 320MHz.

[0504] The number of indices corresponding to a (3*996+484)-tone RU is equal to the number of selectable positions of a (3*996+484)-tone RU in 320MHz, which is 8 (as shown in Figure 13). That is, the resource unit indicates that 8 indices (such as indices 107 to 114 shown in Table 7) are needed to indicate each (3*996+484)-tone RU in 320MHz.

[0505] The number of indices corresponding to (996+484+242)-tone RU is equal to the number of selectable positions of (996+484+242)-tone RU in 320MHz, which is 8 (2 * the 4 selectable positions shown in Figure 14). That is, the resource unit indication requires 8 indices (as shown in Table 7).Index 115 to index 122) indicates each (996+484+242)-tone RU in 320MHz.

[0506] It can be seen that the above two implementation methods affect the number of indices corresponding to (2*996+484)-tone RU and 3*996-tone RU respectively. For example, in implementation method 1, the number of indices corresponding to (2*996+484)-tone RU is 6, and the number of indices corresponding to 3*996-tone RU is 1; in implementation method 2, the number of indices corresponding to (2*996+484)-tone RU is 12, and the number of indices corresponding to 3*996-tone RU is 4.

[0507] In one implementation method, for RU / MRU of the same size, the number of indices corresponding to each RU / MRU can be determined one by one according to the order of the starting frequency of RU / MRU from low to high, as specified in the index number specification on pages 63 / 75 of CN 121057024 A. If multiple MRUs have the same starting frequency, the order is determined by the starting frequency of the second RU, and so on. If all RUs in multiple MRUs have the same starting frequency, the order is determined by the size of the last RU with the same starting frequency. For example, in implementation 1, the index numbers corresponding to the (2*996+484)-tone RUs are from index 97 to index 102. The starting frequencies of each (2*996+484)-tone RU in 240MHz, from low to high, are: the first combination in the second row of Figure 11, the first combination in the third row of Figure 11, the second combination in the third row of Figure 11, the first combination in the first row of Figure 11, the second combination in the second row of Figure 11, and the second combination in the first row of Figure 11. Therefore, index 97 represents the first combination in the second row of Figure 11, index 98 represents the first combination in the third row of Figure 11, index 99 represents the second combination in the third row of Figure 11, index 100 represents the first combination in the first row of Figure 11, index 101 represents the second combination in the second row of Figure 11, and index 102 represents the second combination in the first row of Figure 11.

[0508] In another implementation, for RU / MRU of the same size, the number of indices corresponding to each RU / MRU can be determined one-to-one according to the order of the starting frequency of the RU with holes (i.e., the RU not included in the RU / MRU) from low to high, in order of the index number from small to large. For example, in the 3*996-tone RU shown in Figure 12, the RU with punctured holes in the bandwidth of the 3*996-tone RU shown in the first row has the lowest frequency, so it corresponds to the smallest index; the RU with punctured holes in the bandwidth of the 3*996-tone RU shown in the second row has the second lowest frequency, so it corresponds to the second smallest index; the RU with punctured holes in the bandwidth of the 3*996-tone RU shown in the third row has the lowest frequency.The frequency of the RU with the highest frequency is the second largest; the frequency of the RU with the highest frequency in the bandwidth of the 3*996-tone RU shown in the fourth row is the largest.

[0509] In another implementation, for RU / MRU of the same size, the number of indices corresponding to each RU / MRU can be determined one by one according to the order of the number of indices from small to large and the frequency of the RU / MRU weight from high to low. For example, in the 3*996-tone RU shown in Figure 12, the three 996-tone RUs in the first row have the highest frequency, so they correspond to the smallest index; the two 996-tone RUs in the second row have relatively high frequency, so they correspond to the second smallest index; the one 996-tone RU in the third row has a relatively low frequency, so it corresponds to the second largest index; the three 996-tone RUs in the fourth row have the lowest frequency, so they correspond to the largest index.

[0510] As can be seen, in the resource unit indication method 310, when the station determines the allocated RU / MRU based on the frequency band range indication and the resource unit indication, it can determine the frequency band range where the RU / MRU indicated by the frequency band range indication is located based on the size of the RU / MRU corresponding to the index indicated by the resource unit indication in Table 7, and then determine the RU / MRU corresponding to the index indicated by the resource unit indication within the frequency band range. As can be seen, the resource unit indication can directly indicate the RU / MRU in the frequency band range. While using the frequency band range indication to carry more information, it simplifies the logic as much as possible, which is beneficial to reducing the processing complexity of the station.

[0511] In addition, in the above resource unit indication methods, the resource unit allocation subfield occupies N bits; the frequency band range indication occupies bits 0 to bit x, and the resource unit indication occupies bits x+1 to bit N; the value of x is related to the bandwidth and the frequency band range indicated by the frequency band range indication; N and x are both greater than zero. For example, in resource unit indication method 110, x equals 1; or in resource unit indication method 120, x equals 2; or in resource unit indication method 310, x equals 2, etc.

[0512] In addition, for the above embodiments, the positions of the frequency band range indication and the resource unit indication in the N bits can be interchanged. That is, in the above embodiments, the first two or three bits represent the frequency band range indication, and the remaining bits represent the resource unit indication. This can be interchanged as follows: the first eight or seven bits represent the resource unit indication, and the remaining bits represent the frequency band range indication.

[0513] In addition, the "frequency band range" mentioned herein can also be called the "frequency range", and the frequency band range indication can also be called the frequency range indication. Both the frequency range and the frequency band range correspond to continuous frequencies. Specification 64 / 75 pages 70 CN 121057024

[0514] Embodiment Six, which mainly describes the resource unit indication method 410.

[0515] This application also provides a resource unit indication method 410. In this method, the resource unit allocation subfield corresponding to the site occupies N bits. The index indicated by the N bits directly represents the absolute position of a multi-resource unit (MRU) in the bandwidth. Thus, the site can directly look up the table to find the allocated MRU according to the index indicated by the N bits. That is, this method no longer distinguishes between the first part of the bits indicating a certain granularity of the frequency band range and the second part of the bits indicating the combination mode related to the frequency band range. Therefore, this method can be called the fusion indication method of resource unit indication. Therefore, the logic of the resource unit indication method described in this application is more simplified, further reducing the processing complexity of the site. The method is described below.

[0516] Please refer to Figure 19. Figure 19 is a flowchart of a resource unit indication method 410 provided in an embodiment of this application. The resource unit indication method 410 shown in Figure 19 may include, but is not limited to, the following steps:

[0517] S411, the access point determines the trigger frame;

[0518] The trigger frame includes a resource unit allocation sub-field for indicating the allocation of resources to the site. The resource unit allocation sub-field occupies N bits, and the index indicated by the N bits directly represents the absolute position of a multi-resource unit (MRU) in the bandwidth; N is greater than zero;

[0519] S412, the access point sends the trigger frame;

[0520] S413, the site receives the trigger frame;

[0521] S414, the site determines the MRU directly corresponding to the index indicated by the N bits as the MRU allocated to the site.

[0522] Wherein, in step S414, the site can query the MRU corresponding to the index indicated by the N bits from the resource unit allocation table as the MRU allocated to the site. Wherein, the index indicated by the N bits is the N bits of the resource unit allocation sub-field corresponding to the site.

[0523] For example, but not limited to, the resource unit allocation table may be as shown in Table 8, where N bits are used to indicate the absolute position of each RU / MRU in the bandwidth, N equals 9, denoted as B0 to B8.

[0524] Table 8 Resource Unit Allocation Table

[0525] Specification 65 / 75 pages 71 CN 121057024 A

[0526]

[0527] As shown in Figure 3, a 26-tone RU has 36 positions in 80MHz, then a 26-tone RU has 144 positions (i.e., 4*36) in 320MHz. Therefore, as shown in Table 8, B8 to B0 need to indicate an index from index 0 to index 143 to indicate a 26-tone RU.

[0528] As shown in Figure 3, a 52-tone RU has 16 positions in 80MHz, then a 52-tone RU has 64 positions in 320MHz.4*16 positions. Therefore, B8 to B0 need to indicate an index from index 144 to index 207 to indicate a 52-tone RU.

[0529] As shown in FIG3, there are 8 positions for a 106-tone RU in 80MHz, so there are 32 positions for a 106-tone RU in 320MHz (i.e., 4*8). Therefore, B8 to B0 need to indicate an index from index 144 to index 207 to indicate a 106-tone RU.

[0530] As shown in FIG3, there are 4 positions for a 242-tone RU in 80MHz, so there are 16 positions for a 242-tone RU in 320MHz (i.e., 4*4). Therefore, B8 to B0 need to indicate an index from index 240 to index 255 to indicate a 242-tone RU.

[0531] As shown in Figure 3, there are 2 positions for 484-tone RU in 80MHz, so there are 8 positions for 484-tone RU in 320MHz (i.e., 4*2). Therefore, B8 to B0 need to indicate one index from index 256 to index 263 to indicate one 484-tone RU.

[0532] As shown in Figure 3, there is 1 position for 996-tone RU in 80MHz, so there are 4 positions for 996-tone RU in 320MHz. Therefore, B8 to B0 need to indicate one index from index 264 to index 267 to indicate one 996-tone RU.

[0533] Since 2*996-tone RU cannot span two 160MHz, that is, the frequency band range where 2*996-tone RU is located can only be the main 160MHz or the secondary 160MHz, 2*996-tone RU has 2 positions in 320MHz. Therefore, B8 to B0 need to indicate an index from index 268 to index 269 to indicate a 2*996-tone RU.

[0534] There is only one 4*996-tone RU in 320MHz, so B8 to B0 can indicate an index 270 so that the station knows that the assigned RU is a 4*996-tone RU.

[0535] In 20MHz, (52+26)-tone RU has three combinations as shown in FIG7, so in 320MHz (52+26)-tone RU has 48 combinations (i.e., 16*3). Therefore, B8 to B0 need to indicate an index from index 271 to index 318 to indicate a (52+26)-tone RU.

[0536] In 20MHz, (106+26)-tone RU has two combinations as shown in FIG8, so in 320MHz (106+26)-tone RU has 48 combinations (i.e., 16*3).The RU has 32 combinations (i.e., 16*2). Therefore, B8 to B0 need to indicate an index from index 319 to index 350 to indicate a (106+26)-tone RU.

[0537] In 80MHz, the (484+242)-tone RU has four combinations as shown in FIG9, then in 320MHz, the (484+242)-tone RU has 16 combinations (i.e., 4*4). Therefore, B8 to B0 need to indicate an index from index 351 to index 366 to indicate a (484+242)-tone RU.

[0538] Since the (996+484)-tone RU can be located within the main 160MHz or the secondary 160MHz, and the (996+484)-tone RU in the 160MHz range has four combinations as shown in FIG10, then the (996+484)-tone RU in the 320MHz range has eight combinations (i.e., 2* Specification 66 / 75 pages 72 CN 121057024 A 4). Therefore, B8 to B0 need to indicate an index 367 to index 374 to indicate a (996+484)-tone RU.

[0539] Since the (2*996+484)-tone RU belongs to the 240MHz transmission, it can only exist in the 240MHz formed by punching the lowest or highest 80MHz frequency in the 320MHz. The (2*996+484)-tone RU in the 240MHz has six combinations as shown in FIG11. Then the (2*996+484)-tone RU in the 320MHz has 12 combinations (i.e., 2*6). Therefore, B8 to B0 need to indicate an index from index 375 to index 386 to indicate a (2*996+484)-tone RU.

[0540] The (3*996)-tone RU in the 320MHz has four combinations as shown in FIG12. Therefore, B8 to B0 need to indicate an index from index 387 to index 390 to indicate a (3*996)-tone RU.

[0541] The (3*996+484)-tone RU in 320MHz has eight combinations as shown in FIG13. Therefore, B8 to B0 need to indicate an index from index 391 to index 398 to indicate a (3*996+484)-tone RU.

[0542] When the (484+242)-tone RU in 160MHz is located in the first 80MHz, the (996+484+242)-tone RU in 160MHz has four combinations as shown in FIG14. Correspondingly, when the (484+242)-tone RU in 160MHz is located in the second 80MHz, the (996+484+242)-tone RU in 160MHz has four combinations as shown in FIG14.RU also has four combinations, so there are eight combinations of (996+484+242)-tone RU in 160MHz. Since (996+484+242)-tone RU can only be located at the lowest frequency of 160MHz or the highest frequency of 160MHz, there are 16 combinations of (996+484+242)-tone RU in 320MHz (i.e., 2*8). The B8 to B0 need to indicate an index from index 399 to index 414 to indicate a (996+484+242)-tone RU.

[0543] It can be seen that in the resource unit indication method 410, the resource unit allocation subfield does not distinguish the bits specifically used to indicate a certain frequency band range. The corresponding RU / MRU can be directly found from the resource allocation table according to the index indicated by the N bits in the resource unit allocation subfield, which greatly simplifies the processing logic and helps to reduce the processing complexity of the site.

[0544] This application also provides a resource unit indication method, which differs from the resource unit indication method 410 described above in that the resource unit allocation subfield occupies 8 bits, and this resource unit allocation subfield is used to indicate RU / MRUs related to a 160MHz frequency band. The station can determine, through other parameters or signaling, whether the 160MHz associated with the RU / MRU indicated by the resource unit allocation subfield is the primary 160MHz or the secondary 160MHz. Assuming the 8 bits occupied by the resource unit allocation subfield are denoted as B7 to B0, then B7 to B0 are used to indicate all RU / MRUs involved in the primary 160MHz or secondary 160MHz. For example, the RU / MRUs indicated by B7 to B0 can be shown in Table 9.

[0545] Table 9 Resource Unit Allocation Table Description Page 67 / 75 73 CN 121057024 A

[0546]

[0547] As shown in Figure 3, there are 36 positions for a 26-tone RU in 80MHz, and 72 positions for a 26-tone RU in 160MHz (i.e., 2*36). Therefore, as shown in Table 9, B7 to B0 need to indicate an index from index 0 to index 71 to indicate a 26-tone RU.

[0548] As shown in Figure 3, there are 16 positions for a 52-tone RU in 80MHz, and 32 positions for a 52-tone RU in 160MHz (i.e., 2*16). Therefore, B7 to B0 need to indicate an index from index 72 to index 103 to indicate a 52-tone RU.

[0549] As shown in Figure 3, a 106-tone RU has 8 positions in 80MHz, then a 106-tone RU has 16 positions in 160MHz.There are 4 positions (i.e., 2*8) for 242-tone RUs in 80MHz, and 8 positions (i.e., 2*4) for 242-tone RUs in 160MHz. Therefore, B7 to B0 need to indicate an index (i.e., index 120 to index 127) for 242-tone RUs.

[0551] As shown in Figure 3, there are 2 positions (i.e., 2*8) for 484-tone RUs in 80MHz, and 4 positions (i.e., 2*2) for 484-tone RUs in 160MHz. Therefore, B7 to B0 need to indicate an index (i.e., index 128 to index 131) for 484-tone RUs. Instruction manual, pages 68 / 75, 74 CN 121057024 A

[0552] As shown in Figure 3, there is one position for a 996-tone RU in 80MHz, and two positions for a 996-tone RU in 160MHz. Therefore, B7 to B0 need to indicate one index from index 132 to index 133 to indicate one 996-tone RU.

[0553] Since 2*996-tone RUs cannot span two 160MHz, that is, the frequency band range where 2*996-tone RUs are located can only be the main 160MHz or the secondary 160MHz, there is one position for 2*996-tone RUs in 160MHz. Therefore, B7 to B0 need to indicate index 134 to indicate 2*996-tone RUs.

[0554] There is only one 4*996-tone RU in 320MHz, so B7 to B0 can indicate an index 135 so that the station knows that the assigned RU is a 4*996-tone RU.

[0555] In 20MHz, there are three combinations of (52+26)-tone RU as shown in Figure 7, so there are 24 combinations of (52+26)-tone RU in 160MHz (i.e., 8*3). Therefore, B7 to B0 need to indicate an index from index 136 to index 159 to indicate a (52+26)-tone RU.

[0556] In 20MHz, there are two combinations of (106+26)-tone RU as shown in Figure 8, so there are 16 combinations of (106+26)-tone RU in 160MHz (i.e., 8*2). Therefore, B7 to B0 need to indicate an index from index 160 to index 175 to indicate a (106+26)-tone RU.

[0557] In 80MHz, (484+242)-tone RU has four combinations as shown in FIG9, then in 160MHz (484+The 242)-tone RU has 8 combinations (i.e., 2*4). Therefore, B7 to B0 need to indicate an index from index 176 to index 183 to indicate a (484+242)-tone RU.

[0558] Since the (996+484)-tone RU can be located within the main 160MHz or within the secondary 160MHz, and the (996+484)-tone RU in 160MHz has four combinations as shown in FIG10, therefore, B7 to B0 need to indicate an index from index 184 to index 187 to indicate a (996+484)-tone RU.

[0559] Since the (2*996+484)-tone RU belongs to the 240MHz transmission, it can only exist in the 240MHz formed by punching the lowest or highest 80MHz frequency in the 320MHz. The (2*996+484)-tone RU in the 240MHz has six combinations as shown in Figure 11. Then the (2*996+484)-tone RU in the 320MHz has 12 combinations (i.e., 2*6). Since the 12 combinations of (2*996+484)-tone RU all overlap with the main 160MHz or the slave 160MHz, there are a total of 12 combinations of (2*996+484)-tone RU involved in the 160MHz. The B7 to B0 need to indicate an index from index 188 to index 195 to indicate a (2*996+484)-tone RU.

[0560] The 3*996-tone RU in 320MHz has four combinations as shown in FIG12. These four combinations are involved in both the primary 160MHz and the secondary 160MHz. Therefore, there are four combinations of 3*996-tone RU involved in 160MHz. B7 to B0 need to indicate an index from index 200 to index 203 to indicate a (3*996)-tone RU.

[0561] The (3*996+484)-tone RU in 320MHz has eight combinations as shown in FIG13. These eight combinations are involved in both the primary 160MHz and the secondary 160MHz. Therefore, B7 to B0 need to indicate an index from index 204 to index 211 to indicate a (3*996+484)-tone RU.

[0562] When the (484+242)-tone RU in 160MHz is located in the first 80MHz, the (996+484+242)-tone RU in 160MHz has four combinations as shown in Figure 14. Correspondingly, when the (484+242)-tone RU in 160MHz is located in the second 80MHz, the (996+484+242)-tone RU in 160MHz also has four combinations. Therefore, the (996+484+242)-tone RU in 160MHz has four combinations.There are eight combinations of RUs. Therefore, B7 to B0 need to indicate one of the indices 212 to 219 to indicate a (996+484+242)-tone RU.

[0563] It can be seen that in this resource unit indication method, the resource unit allocation subfield can indicate each RU / MRU involved in 160MHz with only 8 bits, which reduces the number of bits required and helps to save signaling overhead.

[0564] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. In addition, different embodiments can be combined with each other to indicate the RU / MRU allocated to the site. For example, in resource unit indication method 210 or resource unit indication method 220, the relevant content of resource unit indication and frequency band range indication can be applied to part of the MRU allocation in resource unit indication method 110 or resource unit indication method 120. If the frequency band range indicated by the frequency band range indicator in resource unit indication method 210 is the first 80MHz in 320MHz, then the MRU indicated by the resource unit indicator is the 3*996-tone RU corresponding to the second to fourth 80MHz in 320MHz excluding the first 80MHz. This can be applied to resource unit indication method 110 by replacing indexes 99 to 101 in Table 4 with index 99. In this way, the site can determine the location of the assigned 3*996-tone RU by combining the meaning of the frequency band range indicator in resource unit indication method 210.

[0565] Therefore, the order and number of indexes of the various RUs / MRUs and their corresponding indices in Tables 4, 6, 8, or 9 are not fixed and can be changed accordingly in combination with the above embodiments. In addition, Tables 3 and 4 are relatively independent, and Tables 5 and 6 are relatively independent. As mentioned above, the meaning of the frequency band range indicator corresponding to some RUs / MRUs in Table 4 may be different from the meaning described in Table 3.

[0566] In the embodiments provided by this application above, the methods provided by the embodiments of this application have been described from the perspectives of access points and sites. In order to implement the functions of the methods provided by the embodiments of this application above, access points and sites may include hardware structures and software modules, and implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. One of the above functions may be executed in the form of hardware structures, software modules, or hardware structures plus software modules.

[0567] Please refer to FIG20, which is a schematic diagram of the structure of a communication device 500 provided by an embodiment of this application. The communication device 500 shown in FIG20 may include a communication unit 501 and a processing unit 502. The communication unit 501 may include a sending unit and a receiving unit.The unit 500 is a transmitting unit used to implement the transmitting function, a receiving unit used to implement the receiving function, and a communication unit 501 used to implement the transmitting and / or receiving functions. The communication unit can also be described as a transceiver unit.

[0568] The communication device 500 can be a station, a device in a station, or an access point or a device in an access point.

[0569] In one embodiment, the communication device 500 can perform the relevant operations of the station in the resource unit indication method 110 in the above method embodiment. The communication device 500 can include a communication unit 501 and a processing unit 502;

[0570] The communication unit 501 is used to receive a trigger frame from the access point;

[0571] The processing unit 502 is used to determine the allocated RU / MRU according to the frequency band range indication and the resource unit indication.

[0572] Alternatively, the communication device 500 can perform the relevant operations of the access point in the resource unit indication method 110 in the above method embodiment. The processing unit 502 is used to determine the trigger frame; the communication unit 501 is used to send the trigger frame.

[0573] In this embodiment, the trigger frame includes a resource unit allocation subfield for indicating resource allocation to the site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the RU / MRU allocated to the site, and the frequency band range indicator indicates the 80MHz of the smallest RU among the RUs / MRUs indicated by the resource unit indicator.

[0574] It can be seen that the communication device 500 can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve frequency band utilization. In addition, the 80MHz indicated by the frequency band range indicator is the 80MHz of the smallest RU among the MRUs. Compared with the frequency band range indicator only indicating the lowest 80MHz related to the MRU, the communication device 500 is beneficial in saving the number of indexes required by the resource unit indicator to indicate each MRU.

[0575] In another embodiment, the communication device 500 can perform the relevant operations of the site in the resource unit indication method 120 of the above method embodiment. The communication device 500 may include a communication unit 501 and a processing unit 502; Specification 70 / 75 pages 76 CN 121057024 A

[0576] The communication unit 501 is used to receive a trigger frame from the access point;

[0577] The processing unit 502 is used to determine the allocated RU / MRU according to the frequency band range indication and the resource unit indication.

[0578] Alternatively, the communication device 500 can perform the relevant operations of the access point in the resource unit indication method 120 of the above method embodiment. The processing unit 502 is used to determine the trigger frame; the communication unit 501 is used to send the trigger frame.

[0579] In this embodiment, the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site.The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator; the resource unit indicator is used to indicate the RU / MRU allocated to the site, and the frequency band range indicator is used to indicate the 40MHz of the smallest RU among the RU / MRUs indicated by the resource unit indicator.

[0580] It can be seen that the communication device 500 can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve the frequency band utilization. In addition, the 40MHz indicated by the frequency band range indicator is the 40MHz of the smallest RU among the MRUs. Compared with the frequency band range indicator only indicating the lowest 80MHz related to the MRU, the communication device 500 is beneficial to saving the number of indexes required by the resource unit indicator to indicate each MRU.

[0581] In another embodiment, the communication device 500 can perform the site-related operations in the resource unit indication method 210 of the above method embodiment. The communication device 500 may include a communication unit 501 and a processing unit 502;

[0582] The communication unit 501 is used to receive a trigger frame from the access point;

[0583] The processing unit 502 is used to determine the allocated RU / MRU according to the frequency band range indication and the resource unit indication.

[0584] The communication device 500 can perform the access point-related operations in the resource unit indication method 210 of the above method embodiment. The processing unit 502 is used to determine the trigger frame; the communication unit 501 is used to send the trigger frame.

[0585] In this embodiment, the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range in which some or all of the resource unit RUs other than the MRUs are located in the bandwidth.

[0586] It can be seen that the MRU to be indicated by the resource unit indication in the communication device 500 is determined from a frequency band range smaller than the bandwidth. Compared with the MRU to be indicated by the resource unit indication being determined from a frequency band range corresponding to the bandwidth, this is beneficial to reducing the number of indices to be indicated by the resource unit indication.

[0587] In another embodiment, the communication device 500 can perform the relevant operations of the site in the resource unit indication method 220 in the above method embodiment, or the communication device 500 can perform the relevant operations of the access point in the resource unit indication method 220 in the above method embodiment. The difference between this embodiment and the trigger frame in the resource unit indication method 210 is that in this embodiment, the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate a frequency band range. The MRU includes the remaining RUs in the bandwidth other than the frequency band range indicated by the frequency band range indication.

[0588] It can be seen that since the MRU indicated by the resource unit indication is the frequency band range in the bandwidth other than the frequency band range indication, the MRU is determined from a frequency band range smaller than the frequency band range indication by the frequency band range indication.Compared to the MRUs required for resource unit indication, which are determined from the frequency band range corresponding to the bandwidth, the communication device 500 is advantageous in reducing the number of indices required for resource unit indication, as the remaining RUs outside the band range are combined.

[0589] In another embodiment, the communication device 500 can perform the relevant operations of the site in the resource unit indication method 310 of the above method embodiment. The communication device 500 may include a communication unit 501 and a processing unit 502;

[0590] The communication unit 501 is used to receive a trigger frame from the access point;

[0591] The processing unit 502 is used to determine the allocated RU / MRU according to the frequency band range indication and the resource unit indication.

[0592] The communication device 500 can perform the relevant operations of the access point in the resource unit indication method 310 of the above method embodiment. The processing unit 502 is used to determine the trigger frame; the communication unit 501 is used to send the trigger frame.

[0593] In this embodiment, the trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit subfield includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, and the frequency band range indication is used to indicate the frequency band range where the MRU indicated by the resource unit indication is located.

[0594] It can be seen that the resource unit indication in the communication device 500 only needs to indicate the RU / MRU in the frequency band range, reducing the number of indices required for the resource unit indication to indicate an MRU of this size. That is, the frequency band range indication in the communication device 500 can carry more information and simplify the logic of the resource unit indication as much as possible, which is beneficial to reducing the processing complexity of the site.

[0595] In another embodiment, the communication device 500 can perform the relevant operations of the site in the resource unit indication method 410 of the above method embodiment. The communication device 500 may include a communication unit 501 and a processing unit 502;

[0596] The communication unit 501 is used to receive a trigger frame from the access point;

[0597] The trigger frame includes a resource unit allocation subfield for indicating the allocation of resources to the site. The resource unit subfield occupies N bits, and an index indicated by the N bits directly represents the absolute position of a multi-resource unit (MRU) in the bandwidth; N is greater than zero;

[0598] The processing unit 502 is used to determine the MRU directly corresponding to the index indicated by the N bits, as the MRU allocated to the site.

[0599] The communication device 500 can perform the relevant operations of the access point in the resource unit indication method 410 of the above method embodiment. The processing unit 502 is used to determine the trigger frame; the communication unit 501 is used to send the trigger frame. The trigger frame includes an index for indicating the allocation of resources to the site.The resource unit allocation subfield for allocating resources to a site occupies N bits. The index indicated by the N bits directly represents the absolute position of a multi-resource unit (MRU) in the bandwidth; N is greater than zero.

[0600] It can be seen that the resource unit allocation subfield in the communication device 500 does not distinguish bits specifically used to indicate a certain frequency band range. The corresponding MRU can be found directly according to the index indicated by the N bits in the resource unit allocation subfield, which greatly simplifies the processing logic and helps to reduce the processing complexity of the site.

[0601] In addition, the communication device can also execute the relevant implementation methods described in any of the above method embodiments, which will not be described in detail here.

[0602] Please refer to FIG21. FIG21 is a schematic diagram of the structure of a communication device 600 provided in the embodiment of this application. The communication device 600 can be an access point, a site, a chip, chip system, or processor that supports the access point to implement the above method, or a chip, chip system, or processor that supports the site to implement the above method. The communication device can be used to implement the methods described in the above method embodiments, and the specific details can be found in the descriptions in the above method embodiments.

[0603] The communication device 600 may include one or more processors 601. The processor 601 may be a general-purpose processor or a dedicated processor, etc. The processor 601 may be used to control the communication device (e.g., access point, access point chip, site, site chip, etc.), execute software programs, and process data of the software programs.

[0604] Optionally, the communication device 600 may include one or more memories 602, which may store instructions 604. The instructions may be executed on the processor 601, causing the communication device 600 to perform the methods described in the above method embodiments. Optionally, the memory 602 may also store data. The processor 601 and the memory 602 may be set separately or integrated together.

[0605] Optionally, the communication device 600 may also include a transceiver 605 and an antenna 606. The transceiver 605 may be called a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 605 may include a receiver and a transmitter. The receiver may be called a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be called a transmitter or transmitting circuit, etc., and is used to implement the transmitting function. Specification 72 / 75 pages 78 CN 121057024 A

[0606] In one embodiment, the communication device 600 may be a station, or a device in a station, etc. In this embodiment:

[0607] In the communication device 600, the transceiver 605 is used to perform the operation S113 in FIG. 6; perform the operation S123 in FIG. 15; perform the operation S213 in FIG. 16; perform the operation S223 in FIG. 17; perform the operation S313 in FIG. 18; performThe operation of S413 in Figure 19; the processor 601 is used to execute the operation of S114 in Figure 6; execute the operation of S124 in Figure 15; execute the operation of S214 in Figure 16; execute the operation of S224 in Figure 17; execute the operation of S314 in Figure 18; execute the operation of S414 in Figure 19.

[0608] In another embodiment, the communication device 600 may be an access point, or a device in an access point, etc. In this embodiment:

[0609] In the communication device 600, the transceiver 605 is used to perform the operation S112 in FIG. 6; perform the operation S122 in FIG. 15; perform the operation S212 in FIG. 16; perform the operation S222 in FIG. 17; perform the operation S312 in FIG. 18; and perform the operation S412 in FIG. 19. The processor 601 is used to perform the operation S111 in FIG. 6; perform the operation S121 in FIG. 15; perform the operation S211 in FIG. 16; perform the operation S221 in FIG. 17; perform the operation S311 in FIG. 18; and perform the operation S411 in FIG. 19.

[0610] It can be seen that the communication device 600 can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve the frequency band utilization. In addition, the frequency band range indication described in this application carries more information, which is beneficial to saving the number of indexes required for each MRU to be indicated by the resource unit indication; or the communication device 600 can simplify the processing logic and reduce the processing burden of the station by performing the relevant operation of FIG19.

[0611] The relevant contents of the above embodiments can be referred to the relevant contents of the above method embodiments. They will not be described in detail here.

[0612] In another possible design, the transceiver can be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit used to implement the receiving and sending functions can be separate or integrated together. The above transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or the above transceiver circuit, interface, or interface circuit can be used for signal transmission or transmission.

[0613] In yet another possible design, optionally, the processor 601 can store instructions 603, which run on the processor 601 to cause the communication device 600 to perform the method described in the above method embodiments. Instruction 603 may be embedded in processor 601, in which case processor 601 may be implemented in hardware.

[0614] In another possible design, communication device 600 may include circuitry that can perform the functions of sending or receiving or communicating in the foregoing method embodiments.

[0615] The processors and transceivers described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, and application-specific integrated circuits (ASICs).Specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc.

[0616] The communication device described in the above embodiments may be an access point or a station, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by FIG21. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be:

[0617] (1) a standalone integrated circuit IC, or chip, or chip system or subsystem;

[0618] (2) a collection of one or more ICs, optionally, the collection of ICs may also include storage components for storing data and instructions;

[0619] (3) an ASIC, such as a modem;

[0620] (4) a module that can be embedded in other devices; Specification 73 / 75 pages 79 CN 121057024 A

[0621] (5) a receiver, smart terminal, wireless device, handheld device, mobile unit, vehicle device, cloud device, artificial intelligence device, etc.;

[0622] (6) others, etc.

[0623] For cases where the communication device can be a chip or a chip system, please refer to the structural schematic diagram of the chip shown in FIG22. The chip 700 shown in FIG22 includes a processor 701 and an interface 702. The number of processors 701 can be one or more, and the number of interfaces 702 can be multiple.

[0624] For cases where the chip is used to implement the functions of the station in the embodiments of this application:

[0625] The interface 702 is used to execute the operation S113 in FIG6; execute the operation S123 in FIG15; execute the operation S213 in FIG16; execute the operation S223 in FIG17; execute the operation S313 in FIG18; and execute the operation S413 in FIG19. The processor 701 is used to execute the operation S104 in FIG6; execute the operation S124 in FIG15; execute the operation S214 in FIG16; execute the operation S224 in FIG17; execute the operation S314 in FIG18; and execute the operation S414 in FIG19.

[0626] Regarding the case where the chip is used to implement the access point function in the embodiments of this application:

[0627] Interface 702 is used to execute the operation S112 in FIG6; execute the operation S122 in FIG15; execute the operation S212 in FIG16; execute the operation S222 in FIG17; execute the operation S312 in FIG18; and execute the operation S412 in FIG19. Processor 701 is used to execute the operation S111 in FIG6; execute the operation S121 in FIG15; and execute the operation S211 in FIG16.The operation; executes the operation of S221 in FIG17; executes the operation of S311 in FIG18; executes the operation of S411 in FIG19.

[0628] It can be seen that the chip can allocate MRUs to the site, making the allocation of MRUs more flexible and helping to improve the frequency band utilization. In addition, the frequency band range indicator described in this application carries more information, which is conducive to saving the number of indexes required for each MRU by the resource unit indicator; or the chip executes the relevant operation in FIG19, which can simplify the processing logic and reduce the processing burden of the site.

[0629] Optionally, the chip also includes a memory 703 coupled to the processor 701, the memory 703 being used to store the necessary program instructions and data of the terminal device.

[0630] The relevant contents of the above embodiments can be found in the relevant contents of the above method embodiments. They will not be described in detail here.

[0631] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.

[0632] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0633] This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0634] In the above embodiments, all or part of the implementation can be achieved by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the process or function described in the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions, as described on pages 74 / 75 of document 80 (CN 121057024 A), can be transmitted from a website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic cable, digital subscriber line)Transmission can be made to another website, computer, server, or data center via line (DSL) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., high-density digital video disc (DVD)), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0635] Those skilled in the art will understand that the various numerical designations such as "first" and "second" involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, nor do they indicate the order of events.

[0636] The correspondence relationships shown in the tables in this application can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited in this application. When configuring the correspondence relationship between the information and each parameter, it is not necessarily required to configure all the correspondence relationships shown in each table. For example, the correspondence relationships shown in some rows of the tables in this application may not be configured. For example, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters indicated in the titles of the above tables can also be other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0637] The predefined in this application can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0638] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0639] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0640] The above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. AnyThose skilled in the art can easily conceive of variations or substitutions within the scope of the technology disclosed in this application, and all such variations or substitutions should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims. Instruction manual, pages 75 / 75; 81 CN 121057024 A; Figure 1; Figure 2a; Instruction manual drawing 1 / 10 page; 82 CN 121057024 A; Figure 2b; Figure 3; Instruction manual drawing 2 / 10 page; 83 CN 121057024 A; Figure 4; Figure 5; Figure 6; Instruction manual drawing 3 / 10 page; 84 CN 121057024 A; Figure 7; Figure 8; Instruction manual drawing 4 / 10 page; 85 CN 121057024 A; Figure 9; Figure 10; Figure 11; Instruction manual drawing 5 / 10 page; 86 CN 121057024 A; Figure 12; Figure 13; Instruction manual drawing 6 / 10 page; 87 CN 121057024 A; Figure 14; Figure 15; Instruction manual drawing 7 / 10 page; 88 CN 121057024 A; Figure 16; Figure 17; Instruction manual drawing 8 / 10 page; 89 CN 121057024 A Figure 18 Figure 19 Figure 9 / 10 of the specification, page 90 CN 121057024 A Figure 20 Figure 21 Figure 22 Figure 10 / 10 of the specification, page 91 CN 121057024 A Title: Resource unit indication method, access point and site Abstract: The application provides a resource unit indication method, an access point and a site. In the method, a sub-field of a resource unit in a trigger frame comprises a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate a MRU to which a site is allocated, and the frequency band range indication is used to indicate afrequency band range in which one RU in the MRU is located, for example, the resource unit indication is used to indicate 80MHz of the smallest RU in the MRU, so that the frequency band range indication not only indicates the frequency band range related to the MRU, but also can carry more information, for example, the frequency band range in which the smallest RU is located. Therefore, the present application can be applied to 802.11ax, 802.11be and future WiFi systems, and is beneficial to saving the index number required to be indicated by the resource unit indication, compared with the mode that the current frequency band range indication only indicates the lowest frequency band range related to the MRU, thereby saving the system signaling overhead. Abstract

Claims

1. A resource unit indication method, characterized in that, The method includes: The site receives a trigger frame from the access point; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation sub-field for indicating resource allocation to the site, the resource unit allocation sub-field including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs; wherein... The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; The station determines the assigned MRU based on the frequency band range indication and the resource unit indication.

2. A resource unit indication method, characterized in that, The method includes: The access point determines a trigger frame; the trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield for indicating resource allocation to the site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indicator. The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; The access point sends the trigger frame.

3. The method according to claim 1 or 2, characterized in that, The resource unit allocation subfield occupies 9 bits.

4. The method according to claim 3, characterized in that, The resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.

5. The method according to claim 1 or 2, characterized in that, The resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indices; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indices; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indices.

6. The method according to claim 1 or 2, characterized in that, The resource unit indicator includes an index that indicates the size of the MRU allocated to the site, wherein the index belongs to the following index range: Index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU assigned to the site is (996+484)-tone RU; Index "96-99", where any one of the indices "96-99" indicates that the MRU allocated to the site is a (996+484+242)-tone RU; or, Index "105-106", where any one of the indices "105-106" is used to indicate that the MRU assigned to the site is (3*996+484)-tone RU.

7. A communication device, characterized in that, include: The processing unit is used to determine the trigger frame; The trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield for indicating resource allocation to a site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs. The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; A communication unit is used to send the trigger frame.

8. A communication device, characterized in that, include: The communication unit is used to receive trigger frames from the access point; The trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield for indicating resource allocation to a site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs. The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; The processing unit is configured to determine the allocated MRU based on the frequency band range indication and the resource unit indication.

9. The apparatus according to claim 7 or 8, characterized in that, The resource unit allocation subfield occupies 9 bits.

10. The apparatus according to claim 9, characterized in that, The resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.

11. The apparatus according to claim 7 or 8, characterized in that, The resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indices; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indices; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indices.

12. The apparatus according to claim 7 or 8, characterized in that, The resource unit indication includes an index that indicates the size of the MRU allocated to the site, wherein the index is one of a plurality of indexes: Index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU assigned to the site is (996+484)-tone RU; Index "96-99", where any one of the indices "96-99" indicates that the MRU allocated to the site is a (996+484+242)-tone RU; or, Index "105-106", where any one of the indices "105-106" is used to indicate that the MRU assigned to the site is (3*996+484)-tone RU.

13. A communication device, characterized in that, Includes a processor, the processor being configured to execute instructions in memory to cause the communication device to perform the following methods: A trigger frame is received from the access point; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation sub-field for indicating resource allocation to the site, the resource unit allocation sub-field including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs; wherein... The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; The assigned MRU is determined based on the frequency band range indication and the resource unit indication.

14. The apparatus according to claim 13, characterized in that, The resource unit allocation subfield occupies 9 bits.

15. The apparatus according to claim 14, characterized in that, The resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.

16. The apparatus according to any one of claims 13 to 15, characterized in that, The resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indices; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indices; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indices.

17. The apparatus according to any one of claims 13 to 15, characterized in that, The resource unit indicator includes an index that indicates the size of the MRU allocated to the site, wherein the index belongs to the following index range: Index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU assigned to the site is (996+484)-tone RU; Index "96-99", where any one of the indices "96-99" indicates that the MRU allocated to the site is a (996+484+242)-tone RU; or, Index "105-106", where any one of the indices "105-106" is used to indicate that the MRU assigned to the site is (3*996+484)-tone RU.

18. A communication device, characterized in that, Includes a processor, the processor being configured to execute instructions in memory to cause the communication device to perform the following methods: A trigger frame is determined; the trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield for indicating resource allocation to a site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the number of multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indicator. The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; Send the trigger frame.

19. The apparatus according to claim 18, characterized in that, The resource unit allocation subfield occupies 9 bits.

20. The apparatus according to claim 19, characterized in that, The resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.

21. The apparatus according to any one of claims 18 to 20, characterized in that, The resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indices; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indices; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indices.

22. The apparatus according to any one of claims 18 to 20, characterized in that, The resource unit indicator includes an index that indicates the size of the MRU allocated to the site, wherein the index belongs to the following index range: Index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU assigned to the site is (996+484)-tone RU; Index "96-99", where any one of the indices "96-99" indicates that the MRU allocated to the site is a (996+484+242)-tone RU; or, Index "105-106", where any one of the indices "105-106" is used to indicate that the MRU assigned to the site is (3*996+484)-tone RU.

23. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store instructions that, when executed, cause the following method to be implemented: A trigger frame is received from the access point; the trigger frame includes a public information field and a user information list field, the user information list field including one or more user information fields, the one or more user information fields including a resource unit allocation sub-field for indicating resource allocation to the site, the resource unit allocation sub-field including a frequency band range indication and a resource unit indication; the resource unit indication is used to indicate the multiple resource units (MRUs) allocated to the site, the frequency band range indication is used to indicate the frequency band range of the smallest resource unit (RU) among the MRUs; wherein... The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; The assigned MRU is determined based on the frequency band range indication and the resource unit indication.

24. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store instructions that, when executed, cause the following method to be implemented: A trigger frame is determined; the trigger frame includes a public information field and a user information list field. The user information list field includes one or more user information fields, each including a resource unit allocation subfield for indicating resource allocation to a site. The resource unit allocation subfield includes a frequency band range indicator and a resource unit indicator. The resource unit indicator indicates the number of multiple resource units (MRUs) allocated to the corresponding site, and the frequency band range indicator indicates the frequency band range of the smallest resource unit (RU) among the MRUs indicated by the resource unit indicator. The resource unit indicator indicates that the MRU is a (996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 484-tone RU is located in the (996+484)-tone RU; or, The resource unit indicator indicates that the MRU is a (996+484+242)-tone RU, and the frequency band range indicator indicates that the frequency band range is the 80MHz range where the 242-tone RU is located in the (996+484+242)-tone RU; or, The resource unit indicator indicates that the MRU is (3*996+484)-tone RU, and the frequency band range indicator indicates that the frequency band range is 80MHz where the 484-tone RU is located in the (3*996+484)-tone RU; Send the trigger frame.

25. The medium according to claim 23 or 24, characterized in that, The resource unit allocation subfield occupies 9 bits.

26. The medium according to claim 25, characterized in that, The resource unit indicator occupies 7 bits, and the frequency band range indicator occupies 2 bits.

27. The medium according to claim 23 or 24, characterized in that, The resource unit indicator includes an index, and the correspondence between the MRU and the number of indexes is one or more of the following: The size of the MRU is (996+484)-tone RU, corresponding to 2 indices; The size of the MRU is (996+484+242)-tone RU, corresponding to 4 indices; The size of the MRU is (3*996+484)-tone RU, corresponding to 2 indices.

28. The medium according to any one of claim 23 or 24, characterized in that, The resource unit indicator includes an index that indicates the size of the MRU allocated to the site, wherein the index belongs to the following index range: Index "94-95", wherein any one of the indices "94-95" is used to indicate that the MRU assigned to the site is (996+484)-tone RU; Index "96-99", where any one of the indices "96-99" indicates that the MRU allocated to the site is a (996+484+242)-tone RU; or, Index "105-106", where any one of the indices "105-106" is used to indicate that the MRU assigned to the site is (3*996+484)-tone RU.

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