公开(公告)号：US20240057091A1

公开(公告)日：2024-02-15

申请号：US18487615

申请日：2023-10-16

Applicant: Huawei Technologies Co., Ltd.

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

IPC: 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. 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：US11882514B2

公开(公告)日：2024-01-23

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: H04W76/19 ,  H04W40/24

CPC classification number: H04W40/244 ,  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：US20240022995A1

公开(公告)日：2024-01-18

申请号：US18475270

申请日：2023-09-27

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 802.11be standard. The method includes: A station (STA) multi-link device generates a probe request frame, where the probe request frame carries first indication information used to indicate a first access appoint (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：US20230284041A1

公开(公告)日：2023-09-07

申请号：US18315918

申请日：2023-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Yuchen Guo ,  Jinzhe Pan ,  Ming Gan

IPC: H04W16/28 ,  H04L5/00

CPC classification number: H04W16/28 ,  H04L5/0044

Abstract: An AP sends a trigger frame, where the trigger frame is used to trigger a station to send an EHT TB PPDU; and the AP receives the EHT TB PPDU sent by the station. A common information field of the trigger frame includes four UL SRP fields, indicating a sum of transmit power of the AP and maximum interference power accepted by the AP. Values indicated by an SRP1 field and an SRP2 field in a U-SIG of the EHT TB PPDU are respectively determined based on values indicated by the four UL SRP fields.

公开(公告)号：US11743171B2

公开(公告)日：2023-08-29

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 ,  H04W72/121

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 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：US20230254923A1

公开(公告)日：2023-08-10

申请号：US18300406

申请日：2023-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/15 ,  H04L1/1607

CPC classification number: H04W76/15 ,  H04L1/1614 ,  H04W88/08

Abstract: This application discloses a multi-link establishment method and a related device. A multi-link association response frame carries radio bitmap information, to indicate an AP allowed to be associated with a radio of a STA MLD or a link allowed to be established by using a radio of a STA MLD, so that the radio subsequently switches between different APs or links. The multi-link association response frame carries link establishment status information, to indicate a link establishment status of each link that the STA MLD requests to establish, so that multi-link establishment is more flexible. The multi-link association response frame carries reassociation information, to indicate whether each parameter in association configuration information is reserved, so that a problem that signaling overheads are relatively large due to a reassociation operation is avoided. It can be learned that, in the multi-link establishment method, the foregoing information is carried to improve multi-link establishment flexibility.

公开(公告)号：US11711850B2

公开(公告)日：2023-07-25

申请号：US17724054

申请日：2022-04-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W74/08 ,  H04W4/00 ,  H04W72/543 ,  H04L5/00 ,  H04W28/06 ,  H04W72/1268 ,  H04W74/00 ,  H04W72/0446

CPC classification number: H04W74/0816 ,  H04L5/0094 ,  H04W4/00 ,  H04W28/06 ,  H04W72/1268 ,  H04W72/543 ,  H04W74/008 ,  H04W72/0446

Abstract: The application 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.

公开(公告)号：US20230209600A1

公开(公告)日：2023-06-29

申请号：US18177987

申请日：2023-03-03

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0808 ,  H04W56/0055

Abstract: This application relates to the field of wireless communication, for example, being applied to a wireless local area network supporting the 802.11be standard, and in particular, relates to a channel access method for a multi-link device and a related apparatus. The method includes: when a length of a first PPDU transmitted on a first link by a first multi-link device is less than or equal to a first value, skipping starting, by the first multi-link device, a medium synchronization delay timer on a second link, where the first multi-link device is not allowed to perform simultaneous transmitting and receiving on the first link and the second link.

公开(公告)号：US20230199850A1

公开(公告)日：2023-06-22

申请号：US18168048

申请日：2023-02-13

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: This application provides a channel contention method and a related apparatus. The method includes: After data transmission on a first link is completed or a block acknowledgment corresponding to data is received on the first link, a first non-access point station of a first multi-link device performs clear channel assessment CCA detection on a second link in a first time period, where a start moment corresponding to the first time period is the same as a moment at which the data transmission on the first link is completed; and when the CCA detection on the second link fails, the first non-access point station performs channel contention on the second link based on a second time period.

公开(公告)号：US11672041B2

公开(公告)日：2023-06-06

申请号：US17946719

申请日：2022-09-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W76/15 ,  H04L1/1607 ,  H04W88/08

CPC classification number: H04W76/15 ,  H04L1/1614 ,  H04W88/08

Abstract: This application discloses a multi-link establishment method and a related device. A multi-link association response frame carries radio bitmap information, to indicate an AP allowed to be associated with a radio of a STA MLD or a link allowed to be established by using a radio of a STA MLD, so that the radio subsequently switches between different APs or links. The multi-link association response frame carries link establishment status information, to indicate a link establishment status of each link that the STA MLD requests to establish, so that multi-link establishment is more flexible. The multi-link association response frame carries reassociation information, to indicate whether each parameter in association configuration information is reserved, so that a problem that signaling overheads are relatively large due to a reassociation operation is avoided. It can be learned that, in the multi-link establishment method, the foregoing information is carried to improve multi-link establishment flexibility.