公开(公告)号：US11778541B2

公开(公告)日：2023-10-03

申请号：US17939815

申请日：2022-09-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L12/28 ,  H04W48/08 ,  H04W72/0453 ,  H04J1/16

CPC classification number: H04W48/08 ,  H04W72/0453

Abstract: Embodiments of this application provide a channel bandwidth configuration method and a device. The method includes: receiving bandwidth configuration information of a BSS, where the bandwidth configuration information of the BSS is carried in an EHT operation element, the EHT operation element includes a channel bandwidth field, a first channel center frequency field, and a second channel center frequency field, the channel bandwidth field indicates channel bandwidth information of the BSS, the first channel center frequency field and the second channel center frequency field indicate channel location information of the BSS, and the bandwidth information is any channel bandwidth in a plurality of channel bandwidths supported by a terminal; and obtaining the channel bandwidth information and the channel location information based on the bandwidth configuration information of the BSS. This application can be applied to a Wi-Fi system that supports the 802.11 standard, for example, the 802.11be standard.

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.

公开(公告)号：US20230145827A1

公开(公告)日：2023-05-11

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: 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：US20230071851A1

公开(公告)日：2023-03-09

申请号：US17988579

申请日：2022-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L45/16 ,  H04W40/24 ,  H04W72/12

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 STA MLD 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：US20230050803A1

公开(公告)日：2023-02-16

申请号：US17965457

申请日：2022-10-13

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W40/24 ,  H04W76/19

Abstract: This application provides a communications method and a communications apparatus. A first station in a first multi-link device sends first information to a second multi-link device, where the first information is used to indicate a frequency at which a station in a power saving mode in the first multi-link device receives a beacon frame. In this way, the second multi-link device may learn about, based on the first information, a frequency at which a station in the first multi-link device receives a beacon frame, thereby helping the second multi-link device effectively manage a cache service of each station in the first multi-link device and manage a data buffer space.

公开(公告)号：US20220132610A1

公开(公告)日：2022-04-28

申请号：US17568489

申请日：2022-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Yunbo Li ,  Guogang Huang

IPC: H04W76/15 ,  H04W76/11 ,  H04L47/34

Abstract: A multi-link communication method and apparatus are provided. The method includes generating, by a first station, a radio frame. The first station is one of multiple stations comprised in a first multi-link device. The multiple stations comprised in the first multi-link device work on multiple links. The multiple links comprise a first link on which the first station works. The method further includes sending, on the first link by the first station, the radio frame to a second station. The radio frame includes at least two management frames. The at least two management frames are generated by at least two stations that work on different links in the first multi-link device. The second station is one of multiple stations included in a second multi-link device.

公开(公告)号：US11212791B2

公开(公告)日：2021-12-28

申请号：US16720798

申请日：2019-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiao Han ,  Yunbo Li ,  Mengyao Ma ,  Xun Yang ,  Yuchen Guo

IPC: H04W72/04 ,  H04B7/06

Abstract: A communication method and a communications node includes sending, by a sending node, a first frame to a receiving node on a first channel, and sending at least one second frame to the receiving node on a second channel, where a frequency of the first channel is less than a frequency of the second channel, where each second frame corresponds to a sending direction, and a length of each second frame is less than a preset frame length.

公开(公告)号：US10917848B2

公开(公告)日：2021-02-09

申请号：US16382154

申请日：2019-04-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo

IPC: H04W52/02 ,  H04L12/12 ,  H04W48/16 ,  H04W72/04 ,  H04W74/08 ,  H04W80/02

Abstract: Embodiments of this application provide a wake-up frame transmission method and devices. The method includes: determining, by a first device, an enhanced distributed channel access (EDCA) parameter set of a wake-up frame, where the wake-up frame is used to wake up one or more second devices to receive a data frame; determining, by the first device based on the EDCA parameter set of the wake-up frame, whether a channel resource is in an idle state; and sending, by the first device, the wake-up frame to the second device when the channel resource is in the idle state. In the embodiments of this application, the first device can perform channel resource contention based on the EDCA parameter set corresponding to the wake-up frame, so that a service of a high priority can be obtained by transmitting a wake-up frame of a high priority, thereby improving QoS performance of the wake-up frame.

公开(公告)号：US10805885B2

公开(公告)日：2020-10-13

申请号：US16394064

申请日：2019-04-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W52/02

Abstract: This application provides a wake-up method and device. The method includes: receiving, by a wake-up radio, a first wake-up frame, where the first wake-up frame includes a duration field, and the duration field is used to carry duration information; and waking up, by the wake-up radio, a primary radio based on the duration information. Because a wake-up frame transmitted by an access point includes duration information, a wake-up radio of a station wakes up a primary radio based on the duration information, so that the station can save energy better.

公开(公告)号：US10764925B2

公开(公告)日：2020-09-01

申请号：US16051746

申请日：2018-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bo Li ,  Mao Yang ,  Xiao Han ,  Meilu Lin ,  Yuchen Guo ,  Xun Zhou ,  Yunbo Li

IPC: H04W74/08 ,  H04W24/02 ,  H04L12/24 ,  H04W48/08 ,  H04W84/12

Abstract: An information transmission method, including receiving, by a first node, a request message sent by a second node, where the first node and the second node belong to a same basic service set (BSS), and sending, by the first node, a response message to the second node, where the response message comprises an identifier of a BSS to which the first node belongs.