公开(公告)号：US20240089815A1

公开(公告)日：2024-03-14

申请号：US18510261

申请日：2023-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Yiqing LI ,  Chenchen LIU ,  Jian YU ,  Mengshi HU ,  Yunbo LI ,  Yuchen GUO

IPC: H04W36/00 ,  H04W74/00

CPC classification number: H04W36/0077 ,  H04W74/006

Abstract: This application relates to the field of wireless communication, and in particular, to individually addressed traffic indication methods and apparatuses applicable to multiple links, for example, in a wireless local area network supporting an 802.11be standard. In an example method, a first access point (AP) of a first access point multi-link device (AP MLD) generates and sends individually addressed traffic indication information. The individually addressed traffic indication information is used to indicate whether a non-AP MLD associated with the first AP MLD has a downlink individually addressed traffic and whether a non-AP MLD associated with a second AP MLD has a downlink individually addressed traffic. The second AP MLD is an AP MLD to which a non-transmitted AP belongs. The non-transmitted AP is in a multiple basic service set identifier (BSSID) set in which the first AP is located.

公开(公告)号：US20240057164A1

公开(公告)日：2024-02-15

申请号：US18495021

申请日：2023-10-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqing LI ,  Yuchen GUO ,  Yunbo LI ,  Guogang HUANG ,  Ming GAN

IPC: H04W74/08 ,  H04W76/15

CPC classification number: H04W74/0816 ,  H04W76/15

Abstract: This application relates to the field of wireless communication, in particular, to a beacon frame transmission method in an EMLSR mode, and is applied to a wireless local area network supporting the 802.11be standard. A TXOP holder sends a first frame before a first delay prior to a next TBTT, where the first frame indicates TXOP termination on a first link. The first delay is used by an EMLSR non-AP MLD to change a spatial stream on a second link to a state supporting beacon frame reception on the second link. The non-AP MLD changes, within the first delay after the TXOP termination on the first link, a spatial stream on the second link to supporting successful beacon frame reception on the second link, and receives a beacon frame by using a spatial stream currently supported on the second link at the next TBTT.

公开(公告)号：US20230209536A1

公开(公告)日：2023-06-29

申请号：US18171207

申请日：2023-02-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen GUO ,  Ming GAN ,  Yunbo LI ,  Yiqing LI ,  Guogang HUANG

IPC: H04W72/1263 ,  H04W72/20

CPC classification number: H04W72/1263 ,  H04W72/20 ,  H04W76/15

Abstract: Embodiments of this application relate to a multi-link communication method, a traffic-to-link mapping method, and a device. An example method includes a first multi-link device receiving a message from a second multi-link device, wherein the message carries traffic-to-link mapping information. The example method further includes the first multi-link device establishing or updating a traffic-to-link mapping relationship based on the traffic-to-link mapping information.

公开(公告)号：US20230024407A1

公开(公告)日：2023-01-26

申请号：US17959034

申请日：2022-10-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Guogang HUANG ,  Yiqing LI ,  Mengshi HU ,  Yifan ZHOU ,  Dandan LIANG

IPC: H04W48/16 ,  H04W48/08

Abstract: Embodiments of this application provide an access point (AP) multi-link device discovery method and a related apparatus, for example, in a wireless local area network (WLAN) supporting IEEE 802. 1 1be. In an example method, a reporting AP sends a first management frame to a station. The first management frame carries information about a reported AP. The reporting AP is affiliated with an AP multi-link device. The reported AP is affiliated with the same multi-link device as the reporting AP. Or the reported AP belongs to a same multiple basic service set identifier (BSSID) set as another AP in the multi-link device with which the reporting AP is affiliated.

公开(公告)号：US20240365415A1

公开(公告)日：2024-10-31

申请号：US18766971

申请日：2024-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqing LI ,  Yunbo LI ,  Yuchen GUO ,  Ming GAN

IPC: H04W76/15 ,  H04W88/08

CPC classification number: H04W76/15 ,  H04W88/08

Abstract: Embodiments of this application provide a multi-link communication method and a multi-link device. The multi-link device respectively receives a first A-MPDU and a second A-MPDU over a first link and a second link, where the first A-MPDU and the second A-MPDU have a same traffic identifier, and the first A-MPDU is received before the second A-MPDU. The method includes: The multi-link device determines a start sequence number or an end sequence number of a scoreboard on the first link based on the first A-MPDU received over the second link; and the multi-link device sends a first block acknowledgment frame over the first link based on the start sequence number or the end sequence number of the scoreboard on the first link and the received second A-MPDU, where the first block acknowledgment frame is used to acknowledge a receiving status of the second A-MPDU.

公开(公告)号：US20240155717A1

公开(公告)日：2024-05-09

申请号：US18413795

申请日：2024-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guogang HUANG ,  Yunbo LI ,  Yuchen GUO ,  Ming GAN ,  Yiqing LI

IPC: H04W76/15 ,  H04W74/0808

CPC classification number: H04W76/15 ,  H04W74/0808 ,  H04W88/08

Abstract: A method includes: The non-AP MLD generates a buffer report, and sends the buffer report to the AP MLD on a first uplink/downlink of the plurality of uplinks/downlinks. The buffer report includes a request for a duration of direct transmission performed by a first affiliated non-AP STA of the non-AP MLD on a first direct link, the first direct link is a link between a first target non-AP STA and the first affiliated non-AP STA, and the first target non-AP STA and the first affiliated non-AP STA belong to a same BSS.

公开(公告)号：US20240155425A1

公开(公告)日：2024-05-09

申请号：US18417722

申请日：2024-01-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen GUO ,  Yiqing LI ,  Guogang HUANG ,  Yunbo LI ,  Ming GAN

IPC: H04W28/06 ,  H04W84/12

CPC classification number: H04W28/06 ,  H04W84/12

Abstract: The present disclosure relates to radio frame sending methods and apparatuses, and radio frame receiving methods and apparatuses. In one example method, a multi-link device generates a radio frame, where the radio frame includes a first multi-link element (MLE) and a second MLE, the first MLE includes a first information element, the second MLE includes a second information element, and the first information element and the second information element correspond to station information of a same link. Then, the multi-link device sends the radio frame.

公开(公告)号：US20230353323A1

公开(公告)日：2023-11-02

申请号：US18350810

申请日：2023-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mao YANG ,  Zhongjiang YAN ,  Yiqing LI ,  Yunbo LI ,  Jian YU ,  Ming GAN

IPC: H04L5/00 ,  H04L1/1867

CPC classification number: H04L5/0053 ,  H04L1/1887

Abstract: A method includes: A first device sends a block acknowledgment request frame to a second device. The block acknowledgment request frame is used to request the second device to send a block acknowledgment frame. The block acknowledgment frame indicates a receiving status of an access control layer protocol data unit in first transmission. The first transmission is suspended at a first moment, and the first moment is earlier than a transmission end moment when the first transmission is not suspended. The first device receives the block acknowledgment frame. The first device starts, at a second moment, to perform second transmission.

公开(公告)号：US20220394556A1

公开(公告)日：2022-12-08

申请号：US17891785

申请日：2022-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo LI ,  Ming GAN ,  Yuchen GUO ,  Yifan ZHOU ,  Yiqing LI

IPC: H04W28/14 ,  H04W28/02 ,  H04W52/02

Abstract: Embodiments of this application disclose a method for determining a data buffer status, and an apparatus. The method includes: A first MLD receives first indication information from a second MLD, and determines, based on the first indication information and a correspondence between an association identifier of the first MLD and a data type supported by the first MLD, a buffer status of bufferable data that corresponds to the at least one data type and that is in the second MLD, where the first indication information is used to indicate the buffer status of the bufferable data. According to the embodiments of this application, a data buffer status in a data type dimension can be determined. The embodiments of this application may be applied to a wireless local area network system that supports a next-generation Wi-Fi EHT protocol of the IEEE 802.11, that is, the 802.11 protocol such as 802.11be.

公开(公告)号：US20220263604A1

公开(公告)日：2022-08-18

申请号：US17739972

申请日：2022-05-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiqing LI ,  Yuchen GUO ,  Dandan LIANG ,  Jian YU

IPC: H04L1/18 ,  H04L5/00

Abstract: This application provides methods and apparatus for sending feedback information. By binding a BAR-BA feedback manner, that is, first a request and then a feedback, when it is determined that data retransmission is performed by using a hybrid automatic repeat request (HARQ) mechanism, duration of an acknowledgment operation performed by a data receive end on retransmitted data may be increased. Alternatively, the receive end estimates duration required for feeding back a receiving status of the retransmitted data, and feeds back the duration to a transmit end. The transmit end may therefore adaptively adjust duration of the retransmitted data based on a feedback capability of the receive end, to ensure that the feedback of the receive end on the receiving status of the retransmitted data is within a short inter-frame space (SIFS).