公开(公告)号：US20230040554A1

公开(公告)日：2023-02-09

申请号：US17971843

申请日：2022-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L1/16 ,  H04L1/18

Abstract: A multi-link aggregation transmission method and a related apparatus. The method includes: a receive end receives at least one of a data frame and a BAR frame over a plurality of links between the receive end and a transmit end, where the plurality of links includes a first link. The receive end receives a block acknowledgment request BAR frame over the first link, where the BAR frame carries SSN_1 corresponding to the first link. The receive end adjusts, based on SSNs corresponding to all the links, a value of a current starting sequence number WinStart of a scoreboard window. The receive end processes, based on the adjusted WinStart, a data frame received over the plurality of links. The receive end can adaptively adjust the WinStart.

公开(公告)号：US20240015640A1

公开(公告)日：2024-01-11

申请号：US18473542

申请日：2023-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W40/24

CPC classification number: H04W40/246

Abstract: Embodiments of this application provide an access point (AP) multi-link device discovery method and a related apparatus, for example, are applied to a WLAN supporting 802.11be. The method includes: sending, by a station (STA), a probe request frame, wherein the probe request frame carries at least one link identifiers of at least one AP for requesting information of the at least one AP, and the STA is affiliated to a STA MLD; and receiving, by the STA from an AP MLD, a probe response frame, wherein the probe response frame carries the information of the at least one AP requested by the STA.

公开(公告)号：US20230121480A1

公开(公告)日：2023-04-20

申请号：US18067355

申请日：2022-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/08

Abstract: A method includes: A multi-link device performs first channel contention on a first link, where an initial value of a backoff counter in the first channel contention is determined based on a first value of a contention window. The multi-link device may perform second channel contention on the first link when a value of the backoff counter becomes 0 in the first channel contention and the multi-link device does not perform transmission on the first link, where an initial value of the backoff counter in the second channel contention is determined based on a second value of the contention window, and the second value is equal to the first value or a minimum value of the contention window.

公开(公告)号：US20230102644A1

公开(公告)日：2023-03-30

申请号：US17991920

申请日：2022-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Dandan LIANG ,  Jian YU ,  Yunbo LI ,  Yuchen GUO ,  Xun YANG ,  Yiqing LI

IPC: H04W76/15 ,  H04W48/08

Abstract: Embodiments of this application provide a communication method applied to a multi-link device in a wireless local area network WLAN and a related apparatus. The method includes: A reporting AP sends a management frame to a station. The reporting AP belongs to a first AP MLD, and belongs to a multiple BSSID set. The management frame includes MLD information. The MLD information carries, by using different types of MLD elements and a multiple BSSID element, for example, information about another AP in the MLD to which the AP belongs, information about the multiple BSSID set to which the AP belongs, and information about an AP in a multiple BSSID set including the another AP in the MLD to which the AP belongs. The station obtains information about the reporting AP and other information about a reported AP based on the management frame.

公开(公告)号：US20240215093A1

公开(公告)日：2024-06-27

申请号：US18598609

申请日：2024-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/15 ,  H04L5/00 ,  H04W88/10

CPC classification number: H04W76/15 ,  H04L5/0053 ,  H04W88/10

Abstract: This application provides a communication method and a multi-link device. The method includes: When only one of a plurality of links is successfully established, a first MLD performs air interface transmission with a second MLD according to a single-link communication rule. The plurality of links may be a plurality of links that the first MLD requests to establish, or the plurality of links may be a plurality of links that have been successfully established between the first MLD and the second MLD. According to the solution in this application, when only one of the plurality of links is successfully established, the first MLD does not perform air interface transmission with the second MLD according to a multi-link communication rule. Specifically, an address 2 field carried in a frame over the air that is sent by the first MLD is a MAC address of the first MLD.

公开(公告)号：US20230232452A1

公开(公告)日：2023-07-20

申请号：US18185964

申请日：2023-03-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/08 ,  H04W72/0453 ,  H04W74/00

CPC classification number: H04W74/0808 ,  H04W72/0453 ,  H04W74/002

Abstract: Embodiments of this disclosure include a channel access method in a wireless local area network (WLAN) and related apparatus. In the method, a communication device receives a first overlapping basic service set (OBSS) frame on a primary channel, determines a first channel with a busy channel state based on bandwidth information carried in the first OBSS frame, and performs channel contention when switching from the primary channel to a second channel. After the communication device backs off to 0 on the second channel, the communication device determines a third channel used for transmitting data, where the third channel does not include any sub-channel of the first channel, and the first channel includes the primary channel.

公开(公告)号：US20230217494A1

公开(公告)日：2023-07-06

申请号：US18174124

申请日：2023-02-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0816 ,  H04W56/005

Abstract: Embodiments of this application provides a multi-link synchronous transmission method and apparatus. The method includes: The transmit MLD sends a first transmission frame to the receive MLD at a first moment on the first link when a first condition is met. The first moment is determined based on a second moment and/or a third moment, the second moment is a moment at which a backoff counter of the first link decreases to 0, and the third moment is a sending moment of a second transmission frame on the second link. The first condition includes: (1) The backoff counter of the first link is 0, and (2) the second transmission frame is located in a transmission opportunity TXOP on the second link.

公开(公告)号：US20240381476A1

公开(公告)日：2024-11-14

申请号：US18777876

申请日：2024-07-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/20 ,  H04L49/9057 ,  H04W84/12

Abstract: This application discloses a multi-link communication method and apparatus. The method includes: A transmitter sends a first A-MPDU, and a receiver receives the first A-MPDU. The receiver obtains a locally recorded scoreboard context, and when the first A-MPDU meets at least one of the following conditions: a first condition, a second condition, a third condition, or a fourth condition, the receiver refreshes the scoreboard context based on an SN of the first A-MPDU. According to the method provided in this application, the receiver can properly and effectively refresh the local scoreboard context, to ensure that the receiver correctly feeds back receiving statuses of all MPDUs in an A-MPDU received by the receiver.

公开(公告)号：US20240187168A1

公开(公告)日：2024-06-06

申请号：US18440222

申请日：2024-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mao YANG ,  Zhongjiang YAN ,  Yuxin LU ,  Yiqing LI ,  Yunbo LI ,  Yuchen GUO ,  Ming GAN

IPC: H04L5/00 ,  H04W48/16 ,  H04W76/15

CPC classification number: H04L5/0048 ,  H04W48/16 ,  H04W76/15

Abstract: The present disclosure relates to communication methods and apparatuses. In one example method, a non-access point multi-link device (non-AP MLD) receives a first frame from a first access point (AP) when performing a listening operation on a first link. The non-AP MLD switches some or all of spatial streams/antennas on each link of the non-AP MLD to the first link to perform a frame exchange with the first AP. When determining that any preset condition in a preset condition set is met, the non-AP MLD switches some spatial streams/antennas on the first link back to each link or another link to perform the listening operation.

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.