公开(公告)号：US20170215182A1

公开(公告)日：2017-07-27

申请号：US15483811

申请日：2017-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Yan ,  Xin Xue ,  Le Liu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04L5/001 ,  H04L5/0048 ,  H04W16/14 ,  H04W88/08

Abstract: In an uplink service transmission method, an access point divides an entire channel into resource blocks according to a quantity of stations that are connected to the access point, then allocates, to each station according to channel estimation information of each station, a resource block used to transmit uplink information, and separately sends channel allocation indication information to each station, so that each station finds, according to the channel allocation indication information, the resource block corresponding to the station, and transmits the uplink information by using the resource block, so as to implement that in an OFDMA system, multiple stations transmit uplink information in parallel, that is, resource blocks that are obtained by means of division can be simultaneously applicable to multiple stations.

公开(公告)号：US12244447B2

公开(公告)日：2025-03-04

申请号：US18309575

申请日：2023-04-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04W72/12 ,  H04L25/02 ,  H04L27/26 ,  H04W24/10 ,  H04W72/1268 ,  H04W72/23 ,  H04W84/12 ,  H04B7/0452

Abstract: An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

公开(公告)号：US12143333B2

公开(公告)日：2024-11-12

申请号：US16362607

申请日：2019-03-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meilu Lin ,  Ming Gan ,  Le Liu ,  Jun Zhu ,  Jian Yu

IPC: H04L5/00 ,  H04W28/06 ,  H04W28/18 ,  H04W72/121 ,  H04W72/23 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/12

Abstract: A method for sending a wireless local area network packet structure is provided, and the method comprises: determining a packet structure, where the packet structure comprises an HE-SIGA and an HE-SIGB, the HE-SIGA comprises an indication information, and if a current transmission mode is a full bandwidth MU-MIMO transmission, the indication information is used to indicate a number of scheduled users, or if the current transmission mode is other transmission mode, the indication information is used to indicate a number of symbols in the HE-SIGB; and sending the packet structure.

公开(公告)号：US12101831B2

公开(公告)日：2024-09-24

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 ,  H04L1/1607 ,  H04L5/00 ,  H04W72/04 ,  H04W74/00 ,  H04W74/04 ,  H04W74/08 ,  H04W74/0833 ,  H04W84/12

CPC classification number: H04W76/11 ,  H04L1/1614 ,  H04L1/1621 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0055 ,  H04W72/04 ,  H04W74/008 ,  H04W74/04 ,  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：US11916710B2

公开(公告)日：2024-02-27

申请号：US17751155

申请日：2022-05-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le Liu ,  Zhou Lan

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/20 ,  H04W74/00 ,  H04W74/04 ,  H04W72/0446

CPC classification number: H04L27/2602 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/0453 ,  H04W72/20 ,  H04W74/002 ,  H04W74/04 ,  H04W72/0446 ,  H04W74/0816

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：US11770867B2

公开(公告)日：2023-09-26

申请号：US17751358

申请日：2022-05-23

Applicant: Huawei Technologies Co., Ltd.

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

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

CPC classification number: H04W76/11 ,  H04L1/1614 ,  H04L1/1621 ,  H04L5/005 ,  H04L5/0037 ,  H04L5/0055 ,  H04W72/04 ,  H04W74/008 ,  H04W74/04 ,  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 includes 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：US11677606B2

公开(公告)日：2023-06-13

申请号：US17246182

申请日：2021-04-30

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/12 ,  H04L27/26 ,  H04W84/12 ,  H04L25/02 ,  H04W72/23 ,  H04W24/10 ,  H04W72/1268 ,  H04B7/0452

CPC classification number: H04L27/2672 ,  H04L25/022 ,  H04L25/0226 ,  H04L27/261 ,  H04L27/2614 ,  H04W24/10 ,  H04W72/1268 ,  H04W72/23 ,  H04W84/12 ,  H04B7/0452 ,  H04L27/2601

Abstract: An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

公开(公告)号：US11601972B2

公开(公告)日：2023-03-07

申请号：US16932333

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yingpei Lin ,  Jiayin Zhang ,  Jun Luo ,  Le Liu

IPC: H04W74/04 ,  H04L5/00 ,  H04W72/04 ,  H04L9/40 ,  H04L69/22 ,  H04W72/0453 ,  H04W48/12 ,  H04W48/00 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: The method includes generating, by an access point (AP), signaling that includes an AP identifier (ID) field, a bandwidth (BW) field, a guard interval (GI) field, a cyclic redundancy check (CRC) field, and a tail field, the AP ID field is used to indicate an ID of the AP, the BW field is used to indicate bandwidth required for data transmission subsequent to the signaling, the GI is used to indicate a length of a cyclic prefix (CP) required for data transmission subsequent to the signaling, the CRC field is used to guard a field before the CRC field in the signaling, and the Tail field is used to empty an encoder and a decoder, where the CRC field and the Tail field are the last two fields of the signaling. The method also includes sending, by the AP, the signaling.

公开(公告)号：US10999119B2

公开(公告)日：2021-05-04

申请号：US16870570

申请日：2020-05-08

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/12 ,  H04L27/26 ,  H04W84/12 ,  H04L25/02 ,  H04W24/10 ,  H04B7/0452

Abstract: An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

公开(公告)号：US10972977B2

公开(公告)日：2021-04-06

申请号：US16588454

申请日：2019-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Lin ,  Le Liu ,  Jun Zhu ,  Weishan Lu

IPC: H04W52/02 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12

Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN. In embodiments of the disclosure, a cycle of a high-efficiency short training field sequence used for performing stage-2 AGC adjustment in the WLAN may be increased, and a maximum CSD value that can be used is further increased.