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公开(公告)号：US20250071006A1
公开(公告)日：2025-02-27
申请号：US18939246
申请日：2024-11-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Disclosed are a communication method based on a PPDU and an apparatus. This application is applied to a wireless local area network system that supports 802.11 series protocols such as a next-generation Wi-Fi protocol of IEEE 802.11ax, for example, 802.11be, Wi-Fi 7, or EHT, and a next-generation Wi-Fi protocol of 802.11be or Wi-Fi 8, and may be further applied to a UWB-based wireless personal area network system, a sensing (sensing) system, and the like. The method includes: A transmit end generates the PPDU, and sends the PPDU. Correspondingly, a receive end receives the PPDU, and processes the PPDU. The PPDU may include an L-STF, an L-LTF, an L-SIG field, and a first STF.
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公开(公告)号：US20250062941A1
公开(公告)日：2025-02-20
申请号：US18807307
申请日：2024-08-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian YU
Abstract: This application provides information sending and receiving methods and apparatuses, and belongs to the field of communications technologies. This application provides a new PPDU format. A long training sequence in the new PPDU format is orthogonal to a legacy long training sequence or orthogonal to a high throughput long training sequence. By using this long training sequence, a format of a PPDU can be automatically detected, so as to further process the PPDU according to a network standard corresponding to the format of the PPDU. In addition, when a target long training field is read, the format of the PPDU can be detected, thereby saving time for detecting the format of the PPDU, improving efficiency of detecting the format of the PPDU, and completing a task of detecting the format of the PPDU as early as possible.
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公开(公告)号：US20240324008A1
公开(公告)日：2024-09-26
申请号：US18732171
申请日：2024-06-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W74/0808 , H04W72/0446 , H04W76/11 , H04W84/12 , H04W88/08
CPC classification number: H04W74/0808 , H04W72/0446 , H04W76/11 , H04W88/08 , H04W84/12
Abstract: Embodiments of the present disclosure disclose example data communication methods and apparatuses. One set of operations performed by the example solutions includes sending a preset frame to an access point (AP) associated with a data communication apparatus, wherein the data communication apparatus and the AP belong to a first basic service set (BSS) having a first BSS identifier, and the preset frame comprises a second BSS identifier that identifies a second BSS. A physical layer protocol data unit (PPDU) is sent, wherein the PPDU comprises a target BSS identifier. Receiving a frame from the AP is stopped in response to the target BSS identifier being the same as the second BSS identifier and different from the first BSS identifier, as well as a preset condition being met.
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公开(公告)号：US20240235757A1
公开(公告)日：2024-07-11
申请号：US18613252
申请日：2024-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Mengshi HU , Chenchen LIU , Jian YU , Ming GAN
CPC classification number: H04L5/0046 , H04L5/0017 , H04L27/2621
Abstract: Embodiments of this application provide a data transmission method and a communication apparatus. The method includes: determining an aggregated physical layer protocol data unit A-PPDU, where the A-PPDU includes at least two PPDUs belonging to different protocols, the A-PPDU includes a first sequence, the first sequence includes N segments of subsequences, any of the N segments of subsequences is obtained by performing phase rotation on a high efficiency-long training field HE LTF sequence and/or an extreme high throughput-long training field EHT LTF sequence based on a phase rotation parameter corresponding to the HE LTF sequence and/or a phase rotation parameter corresponding to the EHT LTF sequence, N phase rotation parameters corresponding to the N segments of subsequences include at least one phase rotation parameter whose value is −1, and N is a positive integer greater than or equal to 2; and sending the A-PPDU.
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公开(公告)号：US20240154738A1
公开(公告)日：2024-05-09
申请号：US18416260
申请日：2024-01-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian YU , Avner EPSTEIN , Genadiy TSODIK , Shimon SHILO , Arik KLEIN , Oded REDLICH , Mengshi HU
IPC: H04L5/00
CPC classification number: H04L5/0007 , H04L5/0046 , H04L5/0048
Abstract: This application provides a communication method and apparatus, and relates to the communication field. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a first field indicating that the PPDU is an extremely high throughput sounding null data packet EHT sounding NDP transmitted based on orthogonal frequency division multiple access OFDMA, the PPDU further includes an extremely high throughput-long training field EHT-LTF and a packet extension PE field, and the PE field is adjacent to the EHT-LTF; and sending the PPDU. In this way, a Bfee may determine, based on the first field in the PPDU, that the PPDU is the EHT sounding NDP transmitted based on OFDMA, perform channel estimation by using the PPDU, and feed back channel state information to a Bfer, to implement functions such as beamforming and resource scheduling for OFDMA transmission, thereby improving channel quality and a throughput.
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Patent Agency Ranking
公开(公告)号：US20240129099A1
公开(公告)日：2024-04-18
申请号：US18391347
申请日：2023-12-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Bo GONG , Jian YU , Yuxin LU , Ming GAN
IPC: H04L5/00
CPC classification number: H04L5/0092 , H04L5/0044 , H04L5/0048
Abstract: Embodiments of this disclosure provide a communication method and device, a storage medium, and a program product. According to the communication method of this disclosure, a physical layer protocol data unit (PPDU) is transmitted or received based on a tone plan of a first bandwidth. The tone plan includes a physical resource unit (PRU), and the PRU includes discrete subcarriers. According to embodiments of this disclosure, an original nominal RU is processed to obtain a PRU including discrete subcarriers. Discretized subcarriers of the PRU may be evenly distributed on a larger bandwidth without changing subcarrier division of the original nominal RU. When it is ensured that a large PAPR is not generated in data transmission due to discrete subcarriers, a transmit end can perform communication at a high transmit power.
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7.发明公开公开(公告)号：US20240106589A1
公开(公告)日：2024-03-28
申请号：US18526291
申请日：2023-12-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian YU , Mengshi HU , Ming GAN
IPC: H04L5/00
CPC classification number: H04L5/0044
Abstract: The technology of this application relates to the field of wireless fidelity (Wi-Fi) technologies, and provides a method for transmitting a physical layer protocol data unit, a method for transmitting a trigger frame, and an apparatus, to resolve a problem that it is difficult to ensure data transmission reliability of an extremely high throughput physical layer protocol data unit (PPDU) for multi-user transmission in a low power indoor (LPI) operation mode in the conventional technology. The method includes: An access point generates an extremely high throughput multiple user physical layer protocol data unit (EHT MU PPDU), where the EHT MU PPDU includes a resource unit allocation subfield indicating resource unit allocation of a plurality of stations, and a resource unit corresponding to at least one of the plurality of stations is used for duplicate transmission; and sends the EHT MU PPDU.
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8.发明公开公开(公告)号：US20230412300A1
公开(公告)日：2023-12-21
申请号：US18458652
申请日：2023-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian YU
CPC classification number: H04L1/0003 , H04L27/345
Abstract: In the technical solution provided in this application, a control subfield in a first message sent by a data receiver to a data transmitter includes one or more of the following fields: an EHT indication subfield, a number of spatial streams subfield, an EHT-MCS subfield, and an MSI subfield. One or more of the number of spatial streams subfield, the EHT-MCS subfield, and the MSI subfield meet the following conditions: A number of bits occupied by the MSI subfield is less than or equal to 2, a maximum number of spatial streams that can be indicated by the number of spatial streams subfield is greater than 8, and an MCS indicated by the EHT-MCS subfield includes one or more of the following: 4096-QAM, BPSK-DCM, and BPSK-DCM-DUP.
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公开(公告)号：US20230403126A1
公开(公告)日：2023-12-14
申请号：US18455889
申请日：2023-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Mengshi HU , Jian YU , Chenchen LIU , Ming GAN
IPC: H04L5/00 , H04W72/1268
CPC classification number: H04L5/0094 , H04L5/001 , H04L5/0044 , H04W72/1268
Abstract: This application provides a method for transmitting a PPDU and a communication apparatus. An AP sends a trigger frame to trigger at least one STA to transmit an uplink PPDU. After receiving the trigger frame, the at least one STA transmits respective uplink PPDUs. The uplink PPDU includes a data field and LTFs. The data field is carried on a distributed RU. The LTFs are carried on all subcarriers in a first transmission bandwidth. The first transmission bandwidth is a bandwidth occupied by a distributed RU that is allocated by the AP to the at least one STA for transmitting the uplink PPDU. Alternatively, the LTFs are carried on all subcarriers of a plurality of continuous RUs corresponding to the distributed RU.
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公开(公告)号：US20230362910A1
公开(公告)日：2023-11-09
申请号：US18357067
申请日：2023-07-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mao YANG , Bo LI , Mengshi HU , Jian YU
IPC: H04W72/0453 , H04W72/23
CPC classification number: H04W72/0453 , H04W72/23 , H04W84/12
Abstract: The embodiments of the application provides a resource allocation method. In an example method, a trigger frame is sent by an access point to a station. The trigger frame includes one user information field, and the user information field may indicate a plurality of resource units allocated to the station.
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