公开(公告)号：US12156159B2

公开(公告)日：2024-11-26

申请号：US18351829

申请日：2023-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo Li ,  Ming Gan ,  Yuchen Guo

IPC: H04W72/12 ,  H04L5/00 ,  H04W56/00

Abstract: This application provides a communication method and a communication apparatus. The method includes: A sending device sends a first physical layer protocol data unit PPDU over a first link, where the first PPDU carries a trigger frame. The sending device sends a second PPDU over a second link, where the second PPDU carries a second trigger frame; and an absolute value of a time difference between an end time of sending the first PPDU and an end time of sending the second PPDU is less than or equal to a first duration, and the first duration is related to a state turnaround time in a short interframe space (SIFS) time.

公开(公告)号：US20240364612A1

公开(公告)日：2024-10-31

申请号：US18658433

申请日：2024-05-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L43/12 ,  H04W24/02 ,  H04W84/12

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：US12101750B2

公开(公告)日：2024-09-24

申请号：US17313896

申请日：2021-05-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Yunbo Li

IPC: H04W72/0453 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0094

Abstract: A multi-band indication method includes generating, by a first communications device, a first frame, and sending, by the first communications device, the first frame. The first frame includes a first operating class field, and in response to a basic service set (BSS) configured to be established by the first communications device configured to simultaneously operate in a first band and a second band, the first operating class field indicates a starting frequency of the second band. The first band is a band that includes a primary channel and the second band is a band that fails to include the primary channel.

公开(公告)号：US20240298247A1

公开(公告)日：2024-09-05

申请号：US18663276

申请日：2024-05-14

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W48/02 ,  H04W28/02 ,  H04W60/04

CPC classification number: H04W48/02 ,  H04W28/0268 ,  H04W60/04

Abstract: A multi-link communication method is implemented by an access point (AP) multi-link device (MLD). The multi-link communication method includes generating a first frame, and sending the first frame on a first link. The first frame includes a supported rates and a basic service set (BSS) membership selectors element, the element includes first indication information, and the first indication information indicates that a non-AP MLD is disallowed to initiate multi-link setup with the AP MLD on the first link.

公开(公告)号：US12003399B2

公开(公告)日：2024-06-04

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 ,  H04W84/12

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 AP MLDs. If the station wants to obtain a communication parameter of a nontransmitted BSSID AP, the station may send a probe request frame to a nontransmitted BSSID AP in an MBSSID set, and a transmitted BSSID AP in the MBSSID set may reply with a probe response frame. Alternatively, if the station wants to probe a plurality of AP MLDs at a time, the station may send the probe request frame to one transmitted BSSID AP in the MBSSID set, to request the AP to reply with a communication parameter of the nontransmitted BSSID AP. The nontransmitted BSSID AP and the transmitted BSSID AP may belong to different 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：US20240179740A1

公开(公告)日：2024-05-30

申请号：US18430990

申请日：2024-02-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mao Yang ,  Zhongjiang Yan ,  Yunbo Li ,  Ming Gan ,  Yuchen Guo

IPC: H04W74/0816 ,  H04L61/50 ,  H04L101/622 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04L61/50 ,  H04W74/0866 ,  H04L2101/622 ,  H04W84/12

Abstract: A method includes an access point device that obtains a transmission opportunity (TXOP) in a wireless local area network (WLAN) and that allocates a first period in the TXOP to a non-access point device for data transmission. The access point device receives a first frame in the first period. An access address or a transmitter address of the first frame is associated with the non-access point device. The method further includes that the access point device keeps, based on the first frame, a network allocation vector (NAV) unchanged.

公开(公告)号：US11997006B2

公开(公告)日：2024-05-28

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: 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：US11974342B2

公开(公告)日：2024-04-30

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 ,  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.

公开(公告)号：US11924839B2

公开(公告)日：2024-03-05

申请号：US17145371

申请日：2021-01-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Yuchen Guo ,  Xun Yang ,  Jian Yu

IPC: H04W72/12 ,  H04W56/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/27 ,  H04W72/50

CPC classification number: H04W72/21 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/27 ,  H04W72/535

Abstract: Various embodiments provide a data transmission method and apparatus. In those embodiments, a first device sends first indication information in a first frequency band, where the first indication information is indicative of a resource in a second frequency band, used by the first device and the second device to perform data transmission. In those embodiments, the first device performs, based on the scheduling information, data transmission with the second device, using the resource in the second frequency band. Those embodiments can schedule a device based on a plurality of frequency bands to perform data transmission. In this way, a larger bandwidth is used, a throughput rate is increased, and system performance is improved.

公开(公告)号：US11843464B2

公开(公告)日：2023-12-12

申请号：US17182487

申请日：2021-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ying Wang ,  Yunbo Li ,  Yuchen Guo ,  Guogang Huang

IPC: H04L1/18 ,  H04L1/1829 ,  H04L1/1607 ,  H04L47/34 ,  H04W72/0453

CPC classification number: H04L1/1861 ,  H04L1/1607 ,  H04L47/34 ,  H04W72/0453

Abstract: A multi-band transmission method implemented by a receive end, where the method includes: receiving data packets in parallel from a transmit end using M frequency bands, where the data packets belong to a same traffic stream; receiving a BAR from the transmit end, where the BAR carries an SSN and requests a receiving state of a data packet from the transmit end on the mth frequency band; marking an mth state for an unreceived data packet whose SN is before the SSN; marking one or more unreceived data packets with a discarded state when determining the one or more unreceived data packets are marked with a first state, a second state, . . . , and an Mth state; determining whether there are data packets with consecutive SNs; and if yes, submitting a data packet that is in the received state and in the data packets with the consecutive SNs.