公开(公告)号：US20230328666A1

公开(公告)日：2023-10-12

申请号：US18333563

申请日：2023-06-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Yifan Zhou ,  Dandan Liang ,  Guogang Huang ,  Xun Yang

IPC: H04W56/00 ,  H04W76/15

CPC classification number: H04W56/0005 ,  H04W76/15

Abstract: Embodiments of this disclosure disclose a multi-link communication method and a related apparatus. In a scenario in which simultaneous transmission and reception over a plurality of links is not supported, a multi-link device first sends a first physical layer protocol data unit (PPDU) over a first link, and then sends a second PPDU over a second link through channel contention, where an end time of the second PPDU is not later than an end time of the first PPDU. The method not only ensures fairness of multi-link access, but also can reduce an idle rate of the plurality of links.

公开(公告)号：US11784772B2

公开(公告)日：2023-10-10

申请号：US18066933

申请日：2022-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen Liu ,  Dandan Liang ,  Ming Gan

IPC: H04W84/12 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L27/262 ,  H04W84/12

Abstract: This application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a physical layer protocol data unit, and for example, is applied to a wireless local area network. The method includes: A first communications device generates a PPDU and may send the PPDU, where the PPDU includes an LTF sequence; and correspondingly, a second communications device receives the PPDU, and parses the PPDU to obtain the LTF sequence included in the PPDU. Embodiments of this application can be used to design an LTF sequence that has a relatively low PAPR on entire bandwidth, on a single resource unit, on a combined resource unit, and in a considered multi-stream scenario.

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：US20230276413A1

公开(公告)日：2023-08-31

申请号：US18313849

申请日：2023-05-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Mengyao Ma ,  Yan Xin ,  Chenlong Jia ,  Ming Gan

IPC: H04W72/0446 ,  H04L1/16

CPC classification number: H04W72/0446 ,  H04L1/16 ,  H04B7/06

Abstract: This application provides an information indication method and an apparatus. In this application, a sending apparatus generates and sends a first frame, the first frame includes at least one piece of sub-time resource indication information, and each piece of sub-time resource indication information is in a one-to-one correspondence with one of at least one response apparatus. In addition, each piece of sub-time resource indication information includes a time resource at which the corresponding response apparatus sends feedback information for the first frame to the sending apparatus and a time resource at which the sending apparatus sends acknowledgment information for the feedback information to the corresponding response apparatus, so that the at least one response apparatus and the sending apparatus that sends the first frame can simultaneously perform beamforming training, thereby improving effectiveness of beamforming training performed on the sending apparatus and the at least one response apparatus.

公开(公告)号：US20230268969A1

公开(公告)日：2023-08-24

申请号：US18151287

申请日：2023-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Xun Yang ,  Ming Gan ,  Meilu Lin ,  Peter Loc

IPC: H04B7/06 ,  H04W24/10 ,  H04L1/1607 ,  H04W24/00 ,  H04B7/0413 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04W24/10 ,  H04L1/1607 ,  H04W24/00 ,  H04B7/0413 ,  H04L1/0026 ,  H04L1/0073 ,  H04W84/12

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting channel state information. The method includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; and receiving the channel state information sent by the target STAs by using the communication resource.

公开(公告)号：US20230262775A1

公开(公告)日：2023-08-17

申请号：US18164278

申请日：2023-02-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan Liang ,  Ming Gan ,  Xin Zuo ,  Yunbo Li

IPC: H04W74/08 ,  H04L69/22 ,  H04W72/12

CPC classification number: H04W74/0825 ,  H04L69/22 ,  H04W74/0816 ,  H04W72/12

Abstract: Example methods and apparatus for implementing collision detection in data transmission are described. One example method includes sending a data packet including collision detection information to a receive end, where the collision detection information is used by the receive end to perform collision detection on the data packet. A status indication message sent by the receive end is received by the receive end when sending the data packet. The receive end parses the status indication message. If the status indication message includes collision information, the receive end perform retransmission of the data packet.

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：US20230118836A1

公开(公告)日：2023-04-20

申请号：US18068274

申请日：2022-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chenchen Liu ,  Dandan Liang ,  Ming Gan ,  Meihong Zhang

IPC: H04L5/00 ,  H04L1/00

Abstract: A data frame sending method includes: encoding first information by using a first encoder, to generate a first coded segment and a second coded segment; interleaving the first information by using M interleavers, to generate M pieces of information, where the M pieces of information one-to-one correspond to the M interleavers; encoding the M pieces of information by using the first encoder, to generate 2M coded segments; generating a data frame, where the data frame includes N coded segments, and the N coded segments include all or a portion of the first coded segment, the second coded segment, and the 2M coded segments; and sending the data frame through at least two subchannels in N subchannels.

公开(公告)号：US20230085448A1

公开(公告)日：2023-03-16

申请号：US17985355

申请日：2022-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi Hu ,  Jian Yu ,  Ming Gan

IPC: H04L5/00

Abstract: This application relates to the field of wireless fidelity technologies, and in particular, to a resource indication method, an access point, and a station. The method includes: An access point generates a PPDU, and sends the PPDU, where the PPDU comprises a preamble puncturing information field; and where when the PPDU is in non-orthogonal frequency division multiple access (non-OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of an entire bandwidth corresponding to the PPDU; when the PPDU is in an orthogonal frequency division multiple access (OFDMA) transmission mode, the preamble puncturing information field is used to indicate a puncturing status of 80 MHz corresponding to a frequency domain fragment.