公开(公告)号：US20230102644A1

公开(公告)日：2023-03-30

申请号：US17991920

申请日：2022-11-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Dandan LIANG ,  Jian YU ,  Yunbo LI ,  Yuchen GUO ,  Xun YANG ,  Yiqing LI

IPC: H04W76/15 ,  H04W48/08

Abstract: Embodiments of this application provide a communication method applied to a multi-link device in a wireless local area network WLAN and a related apparatus. The method includes: A reporting AP sends a management frame to a station. The reporting AP belongs to a first AP MLD, and belongs to a multiple BSSID set. The management frame includes MLD information. The MLD information carries, by using different types of MLD elements and a multiple BSSID element, for example, information about another AP in the MLD to which the AP belongs, information about the multiple BSSID set to which the AP belongs, and information about an AP in a multiple BSSID set including the another AP in the MLD to which the AP belongs. The station obtains information about the reporting AP and other information about a reported AP based on the management frame.

公开(公告)号：US20230075377A1

公开(公告)日：2023-03-09

申请号：US17931695

申请日：2022-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen GUO

IPC: H04L5/00 ,  H04W52/14 ,  H04W72/04

Abstract: This application provides a spatial reuse method and apparatus based on multi-access point (AP) coordination, and a system. In the method, a first access point AP sends a radio frame including identification information to a second access point AP. The identification information is used to indicate the second access point AP to perform spatial reuse during uplink data transmission performed by at least one first station associated with the first access point. The second access point sends a downlink frame to at least one second station based on the identification information. Through coordination between access points APs, the first AP may configure a spatial reuse transmission opportunity for another specific AP to perform spatial reuse transmission, so that a transmission time in the spatial reuse transmission opportunity is fully used, thereby avoiding a conflict and improving transmission efficiency.

公开(公告)号：US20230066731A1

公开(公告)日：2023-03-02

申请号：US17975135

申请日：2022-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Yifan ZHOU ,  Dandan LIANG ,  Jian YU ,  Yunbo LI ,  Yuchen GUO ,  Mengshi HU

IPC: H04W72/12

Abstract: This application provides a method for sending a trigger frame in a wireless local area network. The method includes: An AP generates a physical layer protocol data unit PPDU, where the PPDU includes one or more trigger frames, each trigger frame corresponds to one frequency segment, and each trigger frame is used to schedule at least one or more stations parking on the corresponding frequency segment; and sends the one or more trigger frames in the PPDU, where each trigger frame is carried in the corresponding frequency segment.

公开(公告)号：US20230064880A1

公开(公告)日：2023-03-02

申请号：US17973745

申请日：2022-10-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo LI ,  Jian YU ,  Yuchen GUO

IPC: H04W72/04

Abstract: A communication method includes generating, by a first device, first control information, and sending, by the first device, the first control information to a second device. The first control information includes a first field and a second field. The first field is useable to indicate a channel state of a first subchannel in a first channel segment. The second field is useable to indicate a channel state of a second subchannel in a second channel segment.

公开(公告)号：US20230009565A1

公开(公告)日：2023-01-12

申请号：US17949494

申请日：2022-09-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming GAN ,  Yifan ZHOU ,  Dandan LIANG ,  Jian YU ,  Yunbo LI ,  Yuchen GUO

IPC: H04L1/16 ,  H04L1/00

Abstract: This application provides a communication method, an access network device, a terminal device, and a core network device. In a process in which the terminal device is handed over from a first access network device to a second access network device, the second access network device learns of first service progress of the first access network device based on a first sequence number of a data packet forwarded by the first access network device, without introducing additional progress exchange information between the two access network devices.

公开(公告)号：US20230007609A1

公开(公告)日：2023-01-05

申请号：US17940609

申请日：2022-09-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo LI ,  Ming GAN ,  Yuchen GUO

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

Abstract: This application provides a communication method and a communication apparatus. One example 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 an end time of sending the second PPDU is not earlier than a first time and not later than a second time, the first time is related to an end time of sending the first PPDU and a state turnaround time in a short interframe space SIFS time, and the second time is related to the end time of sending the first PPDU and the SIFS time.

公开(公告)号：US20220346166A1

公开(公告)日：2022-10-27

申请号：US17859814

申请日：2022-07-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen GUO ,  Yunbo LI ,  Yifan ZHOU

IPC: H04W76/15 ,  H04W52/36 ,  H04W72/04

Abstract: Embodiments of this application provide a multi-link communication method, an apparatus, and a system that relate to the field of communication technologies, to resolve a technical problem in conventional multi-link communication that an amount of information sent by a multi-link device to a peer multi-link device is large, a process in which the peer multi-link device determines, based on the information, a link that can support simultaneous data sending and receiving as a link that is receiving data is cumbersome, and processing load of the peer multi-link device is heavy. The method includes: generating link grouping information, where the link grouping meets a following characteristic: links belonging to different link groups support simultaneous data sending and receiving; and sending the link grouping information.

公开(公告)号：US20220286194A1

公开(公告)日：2022-09-08

申请号：US17749349

申请日：2022-05-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guogang HUANG ,  Yuchen GUO ,  Ming GAN ,  Yunbo LI

IPC: H04B7/08 ,  H04W76/15 ,  H04L1/00 ,  H04W72/04

Abstract: This application discloses an interface parameter update method, comprising: a multi-link ML device based on a status change of each of a plurality of network interfaces comprised in the ML device, update parameters of enabled network interfaces in the plurality of network interfaces, wherein the parameters comprise at least one of capability information or an operation parameter, the plurality of network interfaces work on different frequency bands, and the plurality of network interfaces share antennas configured in the ML device.

公开(公告)号：US20220272777A1

公开(公告)日：2022-08-25

申请号：US17738287

申请日：2022-05-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen GUO ,  Yunbo LI ,  Ming GAN

IPC: H04W76/11 ,  H04L1/16 ,  H04W76/15

Abstract: This disclosure provides methods for modifying a block acknowledgment (BA) protocol parameter. One example method includes a first device that receives a multi-traffic identifier (multi-TID) BA setup request frame comprising multiple pieces of BA protocol identification information from a second device, where the multi-TID BA setup request frame is used to set up parameter information of multiple BA protocols identified by the multiple pieces of BA protocol identification information. The first device sends a multi-TID BA setup response frame to the second device, where the multi-TID BA setup response frame is used to respond to the multi-TID BA setup request frame.

公开(公告)号：US20210075566A1

公开(公告)日：2021-03-11

申请号：US17100266

申请日：2020-11-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen GUO

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/14

Abstract: This application provides a spatial reuse method and apparatus based on multi-access point (AP) coordination, and a system. In the method, a first access point AP sends a radio frame including identification information to a second access point AP. The identification information is used to indicate the second access point AP to perform spatial reuse during uplink data transmission performed by at least one first station associated with the first access point. The second access point sends a downlink frame to at least one second station based on the identification information. Through coordination between access points APs, the first AP may configure a spatial reuse transmission opportunity for another specific AP to perform spatial reuse transmission, so that a transmission time in the spatial reuse transmission opportunity is fully used, thereby avoiding a conflict and improving transmission efficiency.