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公开(公告)号：US11817980B2
公开(公告)日：2023-11-14
申请号：US17856112
申请日：2022-07-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dandan Liang , Ming Gan , Xun Yang
IPC: H04L27/26
CPC classification number: H04L27/2602 , H04L27/2692
Abstract: A method and an apparatus for transmitting a physical layer protocol data unit that can provide a short training field sequence for a larger channel bandwidth. The short training field sequence has a smaller peak-to-average power ratio PAPR and better performance. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a short training field, a length of a frequency domain sequence of the short training field is greater than a first length, and the first length is a length of a frequency domain sequence of a short training field of a PPDU transmitted on a channel with a bandwidth of 160 MHz; and sending the PPDU on a target channel, where a bandwidth of the target channel is greater than 160 MHz.
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222.发明公开公开(公告)号：US20230363000A1
公开(公告)日：2023-11-09
申请号：US18351487
申请日：2023-07-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W74/0866
Abstract: This embodiments of the application relates to the field of wireless communication, and in particular, to a method for recovering permission to use a transmission opportunity and a related apparatus. The method includes: A first device receives a first frame from a second device. The first device recovers the permission to use the transmission opportunity (TXOP) based on the first frame. The first frame indicates that the second device has stopped using a first time resource. The first time resource is allocated by the first device from an obtained TXOP to the second device by using a single-user trigger frame.
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公开(公告)号：US11812399B2
公开(公告)日：2023-11-07
申请号：US17940609
申请日：2022-09-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunbo Li , Ming Gan , Yuchen Guo
CPC classification number: H04W56/0055 , H04L5/0044 , H04W72/12
Abstract: This application provides a communication method and a communication apparatus. One example method includes: A sending device sends a first physical layer protocol data unit PPDU over a first link, where the first PPDU carries a trigger frame. The sending device sends a second PPDU over a second link, where an end time of sending the second PPDU is not earlier than a first time and not later than a second time, the first time is related to an end time of sending the first PPDU and a state turnaround time in a short interframe space SIFS time, and the second time is related to the end time of sending the first PPDU and the SIFS time.
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公开(公告)号：US20230354284A1
公开(公告)日：2023-11-02
申请号：US18308454
申请日：2023-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Yiqing Li , Chenchen Liu , Yunbo Li , Yuchen Guo , Jian Yu , Xun Yang
IPC: H04W72/0453 , H04W72/23
CPC classification number: H04W72/0453 , H04W72/23 , H04W84/12
Abstract: This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information is directly used to indicate or jointly indicate an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information is used to indicate distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU.
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公开(公告)号：US20230354160A1
公开(公告)日：2023-11-02
申请号：US18340018
申请日：2023-06-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Yuchen Guo , Yunbo Li , Dandan Liang , Jian Yu , Mao Yang , Bo Li
IPC: H04W48/08 , H04L1/1607 , H04W52/02
CPC classification number: H04W48/08 , H04L1/1614 , H04W52/0209
Abstract: Embodiments of this application provide a communication method between multi-link devices and an apparatus, and relate to the field of communications technologies, to reduce power consumption of a station multi-link device. The method includes: a multi-link device includes a plurality of STAs, one STA operates on one of a plurality of links, and the STA determines a primary link in the plurality of links. A STA operating on the primary link in the multi-link device may receive information sent by the AP indicating whether the STA operating on the primary link has a downlink traffic, and/or information indicating whether a STA operating on a link other than the primary link has a downlink traffic. Therefore, the STA operating on the primary link may determine a link on which the STA having a downlink traffic operates in the multi-link device.
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Patent Agency Ranking
公开(公告)号：US20230344574A1
公开(公告)日：2023-10-26
申请号：US18340567
申请日：2023-06-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chenchen Liu , Bo Gong , Ming Gan
IPC: H04L5/00
CPC classification number: H04L5/0044 , H04L5/0094
Abstract: This application relates to the field of communication technologies, and provides an information transmission method and an apparatus. The information transmission method includes: A transmit device generates a PPDU of a 320 MHz bandwidth, where some or all fields of the PPDU are rotated in the 320 MHz bandwidth based on a rotation factor sequence, the 320 MHz bandwidth includes sixteen 20 MHz sub-channels, the rotation factor sequence includes 16 rotation factors, and each 20 MHz sub-channel corresponds to one rotation factor. The transmit device sends the PPDU.
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公开(公告)号：US20230319889A1
公开(公告)日：2023-10-05
申请号：US18331185
申请日：2023-06-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunbo Li , Ming Gan , Jian Yu , Yuchen Guo , Yiqing Li , Guogang Huang
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W74/0866
Abstract: This application provides a protocol data unit PPDU transmission method and apparatus, and relates to the field of communication technologies, to indicate, to a STA, a channel for sending a CTS frame. In the method, a first device may send a first data unit. The first data unit may include at least a second data unit and a third data unit. The second data unit is used to carry a first MU-RTS frame. The third data unit is used to carry a second MU-RTS frame. The first MU-RTS frame and the second MU-RTS frame use a same scrambling code initialization value. Based on the foregoing solution, an AP may indicate, to a plurality of STAs by using a plurality of MU-RTS frames, channels for replying CTS frames. The AP may indicate the first MU-RTS frame and the second MU-RTS frame to use the same scrambling code initialization value.
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公开(公告)号：US20230319732A1
公开(公告)日：2023-10-05
申请号：US18330323
申请日：2023-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Ruan , Jian Yu , Cong Chen , Chenchen Liu , Ming Gan
CPC classification number: H04W52/245 , H04W52/241 , H04W16/28 , H04W52/54
Abstract: In a power control method in a wireless local area network, a beamformer sends a null data packet (NDP) via a plurality of spatial streams to beamformees. After receiving the NDP, a beamformee determines a first parameter for power control based on RSSIs of a plurality of receive antennas when the beamformee receives the NDP, or based on SNRs of a plurality of spatial streams when the beamformee receives the NDP. The beamformee then generates a beamforming report comprising the first parameter, and sends the beamforming report to the beamformer.
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公开(公告)号：US20230318880A1
公开(公告)日：2023-10-05
申请号：US18332493
申请日：2023-06-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen Liu , Bo Gong , Ming Gan
CPC classification number: H04L25/0242 , H04L5/0048 , H04L5/0007
Abstract: This application discloses a signal processing method and an apparatus. The method includes: A transmit device generates a PPDU, where the PPDU includes a preamble, the preamble includes an LTF, the LTF includes a plurality of LTF symbols, and the plurality of LTF symbols may be used to carry a sequence obtained according to a first matrix; and then sends the PPDU. Correspondingly, a receive device receives the PPDU, and then processes, according to the first matrix, signals received on the plurality of LTF symbols. The first matrix is a Pn×n matrix, or the first matrix is obtained according to a Pn×n matrix, where Pn×n×Pn×nT=n×I, I is an identity matrix, the Pn×n matrix includes n rows and n columns, the Pn×nT matrix is a transpose matrix of the Pn×n matrix, and n is an integer greater than 8.
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公开(公告)号：US11765675B2
公开(公告)日：2023-09-19
申请号：US17940609
申请日：2022-09-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunbo Li , Ming Gan , Yuchen Guo
CPC classification number: H04W56/0055 , H04L5/0044 , H04W72/12
Abstract: This application provides a communication method and a communication apparatus. One example method includes: A sending device sends a first physical layer protocol data unit PPDU over a first link, where the first PPDU carries a trigger frame. The sending device sends a second PPDU over a second link, where an end time of sending the second PPDU is not earlier than a first time and not later than a second time, the first time is related to an end time of sending the first PPDU and a state turnaround time in a short interframe space SIFS time, and the second time is related to the end time of sending the first PPDU and the SIFS time.
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