公开(公告)号：US11784766B2

公开(公告)日：2023-10-10

申请号：US17931695

申请日：2022-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/14 ,  H04W72/044 ,  H04W72/21 ,  H04W84/12

CPC classification number: H04L5/0032 ,  H04W52/143 ,  H04W72/044 ,  H04W72/21 ,  H04W84/12

Abstract: This application provides a spatial reuse method and apparatus based on multi-access point (AP) coordination, and a system. In the method, a first access point AP sends a radio frame including identification information to a second access point AP. The identification information is used to indicate the second access point AP to perform spatial reuse during uplink data transmission performed by at least one first station associated with the first access point. The second access point sends a downlink frame to at least one second station based on the identification information. Through coordination between access points APs, the first AP may configure a spatial reuse transmission opportunity for another specific AP to perform spatial reuse transmission, so that a transmission time in the spatial reuse transmission opportunity is fully used, thereby avoiding a conflict and improving transmission efficiency.

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.

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

IPC: H04W72/12 ,  H04W56/00 ,  H04L5/00

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.

公开(公告)号：US20230199884A1

公开(公告)日：2023-06-22

申请号：US18168405

申请日：2023-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Jian Yu ,  Yunbo Li ,  Yuchen Guo ,  Xun Yang

IPC: H04W76/15 ,  H04W76/20 ,  H04W48/08

CPC classification number: H04W76/15 ,  H04W76/20 ,  H04W48/08 ,  H04W84/12

Abstract: This application relates to the wireless communication field, and in particular, to critical basic service set (BSS) parameter management method applicable to multiple links and a related apparatus that are applied to, for example, a wireless local area network supporting the 802.11be standard. A first access point (AP) in a first access point multi-link device (AP MLD) generates and sends a first frame, where the first frame indicates critical BSS parameter update count values corresponding to a plurality of APs in the first AP MLD and critical BSS parameter update count values corresponding to a plurality of APs in a second AP MLD, and the second AP MLD is an AP MLD to which a nontransmitted AP belongs in a multiple basic service set identifier (BSSID) set including the first AP.

公开(公告)号：US20230199527A1

公开(公告)日：2023-06-22

申请号：US18169057

申请日：2023-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Jian Yu ,  Yunbo Li ,  Yuchen Guo ,  Xun Yang

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04W84/12

Abstract: This application relates to the wireless communication field, and to critical BSS parameter management method applicable to multiple links and a related apparatus which are applied to, for example, a wireless local area network supporting the 802.11be standard. The method includes: A first AP in a first AP MLD generates and sends a first frame, where the first frame indicates critical BSS parameter update count values corresponding to a plurality of APs in the first AP MLD and critical BSS parameter update count values corresponding to a plurality of APs in a second AP MLD, and the second AP MLD is an AP MLD to which a nontransmitted AP belongs in a multiple BSSID set including the first AP.

公开(公告)号：US20230188309A1

公开(公告)日：2023-06-15

申请号：US18165837

申请日：2023-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Jian Yu ,  Chenchen Liu ,  Ming Gan ,  Dandan Liang ,  Yuchen Guo

IPC: H04L5/00 ,  H04W72/0457

CPC classification number: H04L5/0098 ,  H04L5/0048 ,  H04W72/0457

Abstract: A bandwidth mode indication method and apparatus are provided, and relate to the field of communication technologies. The method includes: A transmit end sends a first frame to a receive end, where the first frame includes a service field, the service field includes a first field, the first field indicates whether a bandwidth mode indication field carried in the first frame is allowed to indicate a target bandwidth mode, and the target bandwidth mode includes one or more of bandwidth modes other than 20 MHz, 40 MHz, 80 MHz, and 80+80 MHz or 160 MHz.

公开(公告)号：US20230124052A1

公开(公告)日：2023-04-20

申请号：US18067420

申请日：2022-12-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yiqing Li ,  Yunbo Li ,  Ming Gan ,  Yuchen Guo ,  Guogang Huang

IPC: H04W74/08

Abstract: A channel contention method includes performing, by a first station and a second station of a multi-link device (MLD), channel contention based on a first enhanced distributed channel access (EDCA) parameter; generating, by the first station and the second station, a point coordination function (PCF) inter-frame space (PIFS) access timer when the first station performs EDCA access and the second station performs PIFS access; and performing, by the first station and the second station, channel contention based on a second EDCA parameter before the PIFS access timer backs off to 0.

公开(公告)号：US20230077351A1

公开(公告)日：2023-03-16

申请号：US17989781

申请日：2022-11-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yiqing Li ,  Yunbo Li ,  Yuchen Guo

IPC: H04W48/16

Abstract: An AID allocation method for a multi-link device, includes: An access point multi-link device generates and sends a first frame. Correspondingly, a station device receives and parses the first frame to obtain an AID that is allocated to the station device and carried in the first frame. The AID is neither a BSSID that can be supported by a first-type access point in the access point multi-link device nor an identifier of an access point in the access point multi-link device. The first-type access point is an access point for establishing a link between the station device and the access point multi-link device.

公开(公告)号：US20230072177A1

公开(公告)日：2023-03-09

申请号：US17987213

申请日：2022-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Ming Gan ,  Yunbo Li ,  Yiqing Li

IPC: H04W40/24 ,  H04W76/15

Abstract: This application discloses a multi-link device probing method and a communication apparatus, which may be applied to a wireless local area network supporting the 802.11be standard. The method includes: A STA multi-link device generates a probe request frame, where the probe request frame carries first indication information used to indicate a first AP working on a first link in an AP multi-link device to feed back communication information of an AP that works on a second link and that is in the AP multi-link device, the communication information is used by the STA multi-link device to perform multi-link communication with the AP multi-link device, the second link is different from a first link; and the STA multi-link device sends the probe request frame on the first link.

公开(公告)号：US20220338285A1

公开(公告)日：2022-10-20

申请号：US17572461

申请日：2022-01-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yifan Zhou ,  Yuchen Guo ,  Yunbo Li ,  Ming Gan

IPC: H04W76/15 ,  H04W8/24

Abstract: Embodiments provide a multi-link communication method and a related apparatus. A first station generates a radio frame, where the first station is one of a plurality of stations included in a first multi-link device. The first multi-link device includes a first station operating on a first link and a second station operating on a second link. The first station transmits the radio frame on the first link, where the radio frame includes capability indication information, and the capability indication information indicates whether the first station and the second station support simultaneous transmitting/receiving operations. According to the embodiments of this application, communication quality can be ensured.