公开(公告)号：US20230319640A1

公开(公告)日：2023-10-05

申请号：US18331196

申请日：2023-06-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

CPC classification number: H04W28/14 ,  H04W28/0278 ,  H04W52/0235

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：US11770789B2

公开(公告)日：2023-09-26

申请号：US18167595

申请日：2023-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Yiqing Li ,  Ming Gan

IPC: H04W60/06 ,  H04W48/08 ,  H04W40/24

CPC classification number: H04W60/06 ,  H04W40/248 ,  H04W48/08

Abstract: This application provides a radio frame sending method and apparatus, and a radio frame receiving method and apparatus. First information for identifying a first MLD in an MLE is included in a radio frame, so that a receiver of the radio frame obtains information of the first MLD from the MLE based on the first information after receiving the radio frame. In the method, a first AP generates the radio frame including the MLE, the MLE carries the information of the first MLD, the MLE includes the first information, and the first information identifies the first MLD; and the first AP sends the radio frame. This application is applied to a wireless local area network system supporting next-generation Wi-Fi protocols of IEEE 802.11ax, for example 802.11be (or referred to as the EHT protocol) and other 802.11 family of protocols.

公开(公告)号：US20230189195A1

公开(公告)日：2023-06-15

申请号：US18167595

申请日：2023-02-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Yiqing Li ,  Ming Gan

IPC: H04W60/06 ,  H04W40/24 ,  H04W48/08

CPC classification number: H04W60/06 ,  H04W40/248 ,  H04W48/08

Abstract: This application provides a radio frame sending method and apparatus, and a radio frame receiving method and apparatus. First information for identifying a first MLD in an MLE is included in a radio frame, so that a receiver of the radio frame obtains information of the first MLD from the MLE based on the first information after receiving the radio frame. In the method, a first AP generates the radio frame including the MLE, the MLE carries the information of the first MLD, the MLE includes the first information, and the first information identifies the first MLD; and the first AP sends the radio frame. This application is applied to a wireless local area network system supporting next-generation Wi-Fi protocols of IEEE 802.11ax, for example 802.11be (or referred to as the EHT protocol) and other 802.11 family of protocols.

公开(公告)号：US20240356716A1

公开(公告)日：2024-10-24

申请号：US18750881

申请日：2024-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00 ,  H04W28/20 ,  H04W72/0453 ,  H04W72/0457 ,  H04W72/23 ,  H04W84/12

CPC classification number: H04L5/0092 ,  H04L5/0044 ,  H04W28/20 ,  H04W72/0453 ,  H04W72/0457 ,  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.

公开(公告)号：US11864039B2

公开(公告)日：2024-01-02

申请号：US18148303

申请日：2022-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yiqing Li ,  Chenchen Liu ,  Jian Yu ,  Mengshi Hu ,  Yunbo Li ,  Yuchen Guo

IPC: H04W8/26 ,  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：US20230413368A1

公开(公告)日：2023-12-21

申请号：US18459451

申请日：2023-09-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Guogang Huang ,  Yuxin Lu ,  Yiqing Li ,  Yuchen Guo ,  Chenchen Liu

IPC: H04W76/20 ,  H04W8/26

CPC classification number: H04W76/20 ,  H04W8/26 ,  H04W84/12

Abstract: Embodiments of this disclosure provide a data transmission method, a communication apparatus, a computer-readable storage medium, and a chip. The method includes: generating, by a first multi-link device, a management frame, where the management frame includes a receiver address, a transmitter address, and link indication information, and the link indication information indicates that the management frame is applied to at least one link corresponding to the link indication information; and sending the management frame to a second multi-link device on a link on which a station indicated by the receiver address or a station indicated by the transmitter address operates.

公开(公告)号：US11838848B2

公开(公告)日：2023-12-05

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

CPC classification number: H04W40/246 ,  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 802.11 be 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：US11832263B2

公开(公告)日：2023-11-28

申请号：US17994813

申请日：2022-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Mengshi Hu ,  Jian Yu ,  Dandan Liang ,  Yiqing Li ,  Yunbo Li ,  Yuchen Guo

IPC: H04W72/04 ,  H04W72/21 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04W72/0446 ,  H04W72/0453

Abstract: This application provides a communication method and apparatus, and relates to the field of communication technologies. The method includes: An AP generates a trigger frame, where the trigger frame includes a first user information field, a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field before the first user information field is located on a primary 160 MHz channel, and a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field after the first user information field is located on a secondary 160 MHz channel. Then, the AP sends the trigger frame.

公开(公告)号：US20230344749A1

公开(公告)日：2023-10-26

申请号：US18338326

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W40/24 ,  H04L45/16 ,  H04W72/121

CPC classification number: H04L45/16 ,  H04W40/24 ,  H04W72/121

Abstract: This application is applicable to a multi-link group addressed traffic transmission method and an apparatus. A first access point (AP) of an AP multi-link device (MLD) sends group addressed traffic indication information indicating whether each AP of other APs of the AP MLD has a group addressed traffic, so that a station (STA) can learn whether the multiple APs have a group addressed traffic. In this way, each STA of the STAMLD does not need to listen to each AP whether each AP has a group addressed traffic. This reduces power consumption of the STA MLD. This application may be applied to a wireless local area network system that supports an IEEE 802.11ax next-generation Wi-Fi EHT protocol, for example, 802.11 series protocols such as 802.11be.

公开(公告)号：US20230145901A1

公开(公告)日：2023-05-11

申请号：US18149490

申请日：2023-01-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/18 ,  H04W76/15

CPC classification number: H04W76/18 ,  H04W76/15

Abstract: A link error recovery method applied to a transmitter MLD is provided. Links between the transmitter MLD and a receiver MLD include a first link and a second link, and one of the transmitter MLD and the receiver MLD has an STR capability while the other does not have the STR capability. The method includes: determining that transmission of a first PPDU on the first link fails; and transmitting a second PPDU to the receiver MLD at a first moment by using the first link, the second PPDU being used to retransmit an error part in the first PPDU. The first moment is a moment at which the transmitter MLD obtains transmission status information of the second link. Alternatively, the first moment is a moment for transmitting a next PPDU on the first link if the first PPDU is normally transmitted.