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公开(公告)号：US20230096177A1
公开(公告)日：2023-03-30
申请号：US18074269
申请日：2022-12-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Yu , Genadiy Tsodik , Shimon Shilo , Ming Gan
Abstract: Disclosed are a physical layer (PHY) protocol data unit (PPDU) transmission method and a related apparatus. The method includes: generating a PPDU, where the PPDU includes a universal signal field (U-SIG), and the U-SIG includes a subfield indicating that the PPDU is a null data packet (NDP); and sending the PPDU. In this way, a beamformee (Bfee) that receives the NDP can identify the NDP earlier. This helps improve efficiency of reading the NDP by the Bfee. The PPDU is an NDP used for a standard after 802.11ax. In a scenario in which wireless communication is performed by using the standard (for example, 802.11be) after 802.11ax, the Bfee can perform channel estimation based on the NDP.
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公开(公告)号：US20230086669A1
公开(公告)日：2023-03-23
申请号：US17992705
申请日：2022-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian Yu , Yuchen Guo , Chenchen Liu , Yunbo Li , Ming Gan , Dandan Liang
IPC: H04L5/00
Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.
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公开(公告)号：US20230043522A1
公开(公告)日：2023-02-09
申请号：US17967637
申请日：2022-10-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunbo Li , Yuchen Guo , Ming Gan
IPC: H04W76/15
Abstract: This application provides a receive chain enabled state switching method and a first multi-link device. The method includes: A first multi-link device receives, by using a first link, a first frame sent by a second multi-link device to the first multi-link device; and the first multi-link device makes one or more second links be in a multi-receive-chain enabled state, where the second link is a link that is between the first multi-link device and the second multi-link device and that is different from the first link. The method provided in this application helps the second multi-link device perform data transmission with the first multi-link device on the second link in a timely manner by using a plurality of spatial flows. This application may be applied to a plurality of Wi-Fi systems supporting an 802.11 standard, for example, the 802.11be standard.
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公开(公告)号：US20230007717A1
公开(公告)日：2023-01-05
申请号：US17931312
申请日：2022-09-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ming Gan , Yifan Zhou , Yunbo Li , Yuchen Guo , Jian Yu , Dandan Liang
Abstract: Embodiments of this application relate to the communication field, and in particular, to a multi-link communication method and an apparatus. A STA in a STA MLD sends an information frame on a link corresponding to the station, and the information frame is used to indicate a STA in an awake state in the STA MLD. An AP MLD receives the information frame, and sends a downlink message frame on a one or more links corresponding to a part of or all of STAs in the awake state in the STA MLD, to assist the part of or all of the stations in fast accessing a channel without waiting for a NAVSyncDelay time period.
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公开(公告)号：US11528174B2
公开(公告)日：2022-12-13
申请号：US17036996
申请日：2020-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L27/26
Abstract: Embodiments of this application provide information transmission methods and apparatuses. One method includes: generating, by a first communications device, a physical layer protocol data unit (PPDU) with a bandwidth of X MHz, wherein X>160, some or all fields in the PPDU are rotated in the bandwidth of X MHz by using a rotation factor sequence, the bandwidth of X MHz comprises n bandwidths of Y MHz, the rotation factor sequence comprises n rotation factors, and each of the n bandwidths corresponds to one rotation factor; and sending, by the first communications device, the PPDU to a second communications device.
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Patent Agency Ranking
公开(公告)号：US20220345275A1
公开(公告)日：2022-10-27
申请号：US17811462
申请日：2022-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mengshi Hu , Jian Yu , Ming Gan , Mao Yang , Zhongjiang Yan
Abstract: This application relates to the wireless communications field, and in particular, to a multi-resource unit multi-RU combination indication method and apparatus. The method includes: A sending device determines a physical layer protocol data unit PPDU, where the PPDU includes a signal field, and the signal field includes a combination indication indicating whether to combine a first RU and a neighboring second RU into a multi-RU; the sending device sends the PPDU; and a receiving device determines, based on the signal field, whether the multi-RU is allocated to method station.
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公开(公告)号：US20220345247A1
公开(公告)日：2022-10-27
申请号：US17860212
申请日：2022-07-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuchen Guo , Yunbo Li , Guogang Huang , Ming Gan , Mao Yang , Bo Li
Abstract: A method for determining a receiving status of a data frame and a first multi-link device. The method includes sending data frames to a second multi-link device over multiple links; receiving, over a first link in the multiple links, a block acknowledgment (BA) frame, where a bitmap in the BA frame indicates a receiving status of a data frame transmitted over the first link and indicates a receiving status of a data frame transmitted over a second link in the multiple links, and determining, based on a first time and a second time, a receiving status of a data frame corresponding to a first bit.
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公开(公告)号：US20220255849A1
公开(公告)日：2022-08-11
申请号：US17732090
申请日：2022-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guogang Huang , Yuchen Guo , Yunbo Li , Ming Gan
Abstract: Application provides a data transmission method and apparatus, to perform data transmission when a plurality of interfaces included by an AP side in packet-level multi-link aggregation belong to different physical devices. The method includes: A first AP generates, and sends a first data frame to a STA carrying a first MSDU, a sequence number of the first MSDU, and a traffic identifier TID of the first MSDU. The first AP generates and sends a second data frame to a second AP. The second data frame includes a third data frame, the third data frame carries a second MSDU, a sequence number of the second MSDU, and a TID of the second MSDU, the TID of the first MSDU is the same as the TID of the second MSDU, and the sequence number of the first MSDU and the sequence number of the second MSDU are allocated based on an obtaining sequence.
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公开(公告)号：US11412516B2
公开(公告)日：2022-08-09
申请号：US16791726
申请日：2020-02-14
Applicant: Huawei Technologies Co., Ltd.
Abstract: A data transmission method and apparatus applied to the wireless communications field, where the method includes receiving, by a first access point (AP), cooperation configuration information from a second AP, where the cooperation configuration information of the second AP indicates basic cooperation information of the second AP to the first AP, and triggering, by the first AP based on a quantity of spatial streams allocated through cooperation, at least one cooperation station (STA) associated with the first AP to perform uplink data transmission using a quantity of spatial streams allocated by the first AP.
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320.发明授权公开(公告)号：US11310087B2
公开(公告)日：2022-04-19
申请号：US16811616
申请日：2020-03-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Shimon Shilo , Leonid Epstein , Oded Redlich , Xun Yang , Tao Wu
Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.
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