公开(公告)号：US20170141899A1

公开(公告)日：2017-05-18

申请号：US15417970

申请日：2017-01-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weishan LU ,  Doron Ezri ,  Le Liu

IPC: H04L5/00 ,  H04B7/0452 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2657 ,  H04W72/0453

Abstract: A method for transmitting information, a station, and an access point in a MU-MIMO system includes: determining, by a first station, multiple to-be-sent first long training sequences, where the multiple first long training sequences include at least one pilot for phase tracking; and sending, by the first station, the multiple first long training sequences to an access point on multiple symbols, where a second station sends multiple second long training sequences to the access point on the multiple symbols, the multiple second long training sequences include at least one pilot for phase tracking, and a first pilot for phase tracking and a second pilot for phase tracking occupy different time-frequency resources, where the at least one pilot for phase tracking included in the multiple first long training sequences includes the first pilot for phase tracking.

公开(公告)号：US20230389092A1

公开(公告)日：2023-11-30

申请号：US18448768

申请日：2023-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ming Gan ,  Le Liu ,  Yunbo Li ,  Meilu Lin

IPC: H04W76/11 ,  H04W74/00 ,  H04L5/00 ,  H04W74/04 ,  H04L1/1607 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W76/11 ,  H04W74/008 ,  H04L5/005 ,  H04L5/0037 ,  H04W74/04 ,  H04L1/1614 ,  H04L5/0055 ,  H04W72/04 ,  H04L1/1621 ,  H04W74/08 ,  H04W74/0833 ,  H04L5/0007 ,  H04W84/12

Abstract: An association establishment method and apparatus for carrying out the method are described. The association establishment method includes broadcasting, by an access point (AP), a trigger frame, wherein the trigger frame is used to trigger one or more unassociated stations STAs to perform uplink data transmission and indicate one or more available subchannels for random accessing of the unassociated STAs. The method further comprises receiving, by the AP, one or more association request messages sent on available subchannels acquired by the unassociated STAs. Thereafter, the AP broadcasts a multi-block acknowledgement M-BA frame, wherein the M-BA frame includes one or more pieces of association acknowledgement information and the association acknowledgement information is acknowledgement information of the association request message.

公开(公告)号：US11664945B2

公开(公告)日：2023-05-30

申请号：US17510036

申请日：2021-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo Li ,  Yanchun Li ,  Le Liu ,  Jiayin Zhang ,  Ming Gan

IPC: H04L5/00 ,  H04L27/26 ,  H04W24/02 ,  H04W72/04 ,  H04W84/12 ,  H04W48/12 ,  H04B7/0452 ,  H04W72/0446

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2602 ,  H04W24/02 ,  H04W72/0446 ,  H04B7/0452 ,  H04L5/0037 ,  H04L5/0064 ,  H04L27/2603 ,  H04W48/12 ,  H04W84/12

Abstract: The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.

公开(公告)号：US10952097B2

公开(公告)日：2021-03-16

申请号：US16516676

申请日：2019-07-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Liu ,  Yi Luo ,  Guido Montorsi ,  Sergio Benedetto

IPC: H04W28/06 ,  H04L27/26 ,  H04W84/12

Abstract: Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.

公开(公告)号：US10812307B2

公开(公告)日：2020-10-20

申请号：US16678719

申请日：2019-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meilu Lin ,  Sheng Liu ,  Wei Lin ,  Jian Yu ,  Le Liu ,  Xun Yang ,  Shimon Shilo ,  Doron Ezri ,  Genadiy Tsodik ,  Oded Redlich

IPC: H04L27/26 ,  H04L29/08 ,  H04L5/00 ,  H04W84/12

Abstract: Embodiments of the present disclosure provide a physical layer protocol data unit (PPDU) transmission method and a corresponding PPDU transmission apparatus. Application of the method and apparatus in the embodiments of the present disclosure enables a receive end to quickly determine the starting position of the feature signal sequence by means of blind detection, and ensures that the receive end quickly completes data processing and status switching.

公开(公告)号：US10764413B2

公开(公告)日：2020-09-01

申请号：US16019295

申请日：2018-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xun Yang ,  Meilu Lin ,  Ming Gan ,  Le Liu

IPC: H04W4/00 ,  H04L29/08 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04 ,  H04W84/12 ,  H04W80/02 ,  H04W88/08

Abstract: The frame transmission method in the wireless local area network includes: generating, by an access point, a physical layer protocol data unit PPDU of a target type, where the PPDU includes a target media access control MAC frame structure that is generated in a target encapsulation format and that carries a trigger frame, and whether the target MAC frame structure includes a packet extension field is determined based on the target type and the target encapsulation format; and sending, by the access point, the PPDU.

公开(公告)号：US10716135B2

公开(公告)日：2020-07-14

申请号：US16368300

申请日：2019-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Liu ,  Zhou Lan

IPC: H04W72/04 ,  H04W74/00 ,  H04W74/04 ,  H04L5/00 ,  H04L27/26 ,  H04W74/08

Abstract: The present invention discloses a data transmission method, apparatus, and system, and an access point. The method includes: transceiving data of a data portion in an uplink OFDMA PPDU scheduled by an access point AP on a corresponding allocated frequency resource unit RU, determining one or more fundamental channel units on which the allocated frequency resource unit RU is located, and transceiving at least some fields in a common signaling portion in the uplink OFDMA PPDU on the determined one or more fundamental channels. In this way, one or more fundamental channels for transceiving at least some fields in a common signaling portion in an uplink OFDMA PPDU are determinate, and another user can transceive data on another idle fundamental channel, thereby improving channel utilization. In addition, multiple users can simultaneously transceive data on multiple fundamental channels, thereby improving a service transmission rate.

公开(公告)号：US10674533B2

公开(公告)日：2020-06-02

申请号：US15819048

申请日：2017-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Liu ,  Zhou Lan

IPC: H04L5/00 ,  H04W74/00 ,  H04W74/04 ,  H04L27/26 ,  H04W72/04 ,  H04W74/08

Abstract: The present invention discloses a data transmission method, apparatus, and system, and an access point. The method includes: transceiving data of a data portion in an uplink OFDMA PPDU scheduled by an access point AP on a corresponding allocated frequency resource unit RU, determining one or more fundamental channel units on which the allocated frequency resource unit RU is located, and transceiving at least some fields in a common signaling portion in the uplink OFDMA PPDU on the determined one or more fundamental channels. In this way, one or more fundamental channels for transceiving at least some fields in a common signaling portion in an uplink OFDMA PPDU are determinate, and another user can transceive data on another idle fundamental channel, thereby improving channel utilization. In addition, multiple users can simultaneously transceive data on multiple fundamental channels, thereby improving a service transmission rate.

公开(公告)号：US20240205064A1

公开(公告)日：2024-06-20

申请号：US18512013

申请日：2023-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Xue ,  Ningjuan Wang ,  Le Liu ,  Wei Lin

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/044 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L5/0048 ,  H04L27/262 ,  H04W72/044 ,  H04L27/26132 ,  H04W84/12

Abstract: Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

公开(公告)号：US11843493B2

公开(公告)日：2023-12-12

申请号：US17683103

申请日：2022-02-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Xue ,  Ningjuan Wang ,  Le Liu ,  Wei Lin

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/044 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L5/0048 ,  H04L27/262 ,  H04W72/044 ,  H04L27/26132 ,  H04W84/12

Abstract: Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.