公开(公告)号：US20230148056A1

公开(公告)日：2023-05-11

申请号：US18091924

申请日：2022-12-30

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L43/12 ,  H04W24/02

CPC classification number: H04L43/12 ,  H04W24/02 ,  H04W84/12

Abstract: Embodiments of this application provide a probe request and response technology between a station and a plurality of access point multi-link devices (AP MLDs). During implementation of this application, a station may obtain communication parameters of a plurality of APs of one or more AP MLDs by sending one probe request frame, to obtain communication parameters of the AP MLD on a plurality of links, thereby efficiently implementing association between the station and the AP MLD or establishing multi-link transmission between the station and the AP MLD.

公开(公告)号：US11647522B2

公开(公告)日：2023-05-09

申请号：US16988162

申请日：2020-08-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo

IPC: H04W72/04 ,  H04W52/42 ,  H04W84/12 ,  H04W88/08 ,  H04W72/0446

CPC classification number: H04W72/0426 ,  H04W52/42 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

Abstract: Example methods for multi-access point (AP) coordination and apparatus are described. One example method includes generating a first radio frame by a first AP. The first radio frame includes indication information used to indicate transmission duration of a second radio frame sent by a second AP. The first AP sends the first radio frame to the second AP. In a sending period of the second radio frame, the first AP sends a third radio frame to a first station (STA) associated with the first AP.

公开(公告)号：US20230109874A1

公开(公告)日：2023-04-13

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

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：US20230086669A1

公开(公告)日：2023-03-23

申请号：US17992705

申请日：2022-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00

Abstract: A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.

公开(公告)号：US20230043522A1

公开(公告)日：2023-02-09

申请号：US17967637

申请日：2022-10-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Yuchen Guo ,  Ming Gan

IPC: H04W76/15

Abstract: This application provides a receive chain enabled state switching method and a first multi-link device. The method includes: A first multi-link device receives, by using a first link, a first frame sent by a second multi-link device to the first multi-link device; and the first multi-link device makes one or more second links be in a multi-receive-chain enabled state, where the second link is a link that is between the first multi-link device and the second multi-link device and that is different from the first link. The method provided in this application helps the second multi-link device perform data transmission with the first multi-link device on the second link in a timely manner by using a plurality of spatial flows. This application may be applied to a plurality of Wi-Fi systems supporting an 802.11 standard, for example, the 802.11be standard.

公开(公告)号：US20230007717A1

公开(公告)日：2023-01-05

申请号：US17931312

申请日：2022-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Yifan Zhou ,  Yunbo Li ,  Yuchen Guo ,  Jian Yu ,  Dandan Liang

IPC: H04W76/15 ,  H04W56/00

Abstract: Embodiments of this application relate to the communication field, and in particular, to a multi-link communication method and an apparatus. A STA in a STA MLD sends an information frame on a link corresponding to the station, and the information frame is used to indicate a STA in an awake state in the STA MLD. An AP MLD receives the information frame, and sends a downlink message frame on a one or more links corresponding to a part of or all of STAs in the awake state in the STA MLD, to assist the part of or all of the stations in fast accessing a channel without waiting for a NAVSyncDelay time period.

公开(公告)号：US20220345247A1

公开(公告)日：2022-10-27

申请号：US17860212

申请日：2022-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Yunbo Li ,  Guogang Huang ,  Ming Gan ,  Mao Yang ,  Bo Li

IPC: H04L1/16 ,  H04L1/08

Abstract: A method for determining a receiving status of a data frame and a first multi-link device. The method includes sending data frames to a second multi-link device over multiple links; receiving, over a first link in the multiple links, a block acknowledgment (BA) frame, where a bitmap in the BA frame indicates a receiving status of a data frame transmitted over the first link and indicates a receiving status of a data frame transmitted over a second link in the multiple links, and determining, based on a first time and a second time, a receiving status of a data frame corresponding to a first bit.

公开(公告)号：US20220255849A1

公开(公告)日：2022-08-11

申请号：US17732090

申请日：2022-04-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L45/24 ,  H04L45/74 ,  H04L47/41

Abstract: Application provides a data transmission method and apparatus, to perform data transmission when a plurality of interfaces included by an AP side in packet-level multi-link aggregation belong to different physical devices. The method includes: A first AP generates, and sends a first data frame to a STA carrying a first MSDU, a sequence number of the first MSDU, and a traffic identifier TID of the first MSDU. The first AP generates and sends a second data frame to a second AP. The second data frame includes a third data frame, the third data frame carries a second MSDU, a sequence number of the second MSDU, and a TID of the second MSDU, the TID of the first MSDU is the same as the TID of the second MSDU, and the sequence number of the first MSDU and the sequence number of the second MSDU are allocated based on an obtaining sequence.

公开(公告)号：US20220141629A1

公开(公告)日：2022-05-05

申请号：US17648048

申请日：2022-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yifan Zhou ,  Yuchen Guo ,  Peter Loc

IPC: H04W4/20 ,  H04W28/02 ,  H04L1/16

Abstract: A method includes: when data of a first service needs to be sent to a receive end, sending m indication frames to the receive end if a type of the first service is a target service type; receiving n trigger frames sent by the receive end based on the m indication frames; and each time one trigger frame is received, sending the data of the first service to the receive end by using a transmission resource indicated by the trigger frame.

公开(公告)号：US11317439B2

公开(公告)日：2022-04-26

申请号：US16017021

申请日：2018-06-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanchun Li ,  Yuchen Guo ,  Yunbo Li ,  Xun Yang

IPC: H04W74/08 ,  H04W4/00 ,  H04L5/00 ,  H04W28/06 ,  H04W72/08 ,  H04W72/12 ,  H04W74/00 ,  H04W72/04

Abstract: Embodiments of the present invention provide an access method, including: sending, to an access point, a first frame that carries uplink transmission requirement information; and if a second frame that carries information about an uplink transmission resource is received from the access point within agreed time period, sending uplink multi-user transmission data to the access point, where the uplink multi-user transmission data is transmitted on the uplink transmission resource; or if the second frame is not received within an agreed time period, accessing, by a station, a channel in a contention access manner that is based on carrier sense CSMA/CA. According to the method provided in the embodiments of the present invention, a channel access manner can be managed, a congestion degree of a system can be decreased, and channel utilization can be increased.