公开(公告)号：US20180184429A1

公开(公告)日：2018-06-28

申请号：US15843300

申请日：2017-12-15

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ming Gan ,  Meilu Lin ,  Le Liu

IPC: H04W72/04 ,  H04W72/12 ,  H04B7/0452

Abstract: Embodiments provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).

公开(公告)号：US11889549B2

公开(公告)日：2024-01-30

申请号：US18166763

申请日：2023-02-09

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/04 ,  H04L5/00 ,  H04L9/40 ,  H04W72/23 ,  H04L69/22 ,  H04W72/0453 ,  H04W48/12 ,  H04W48/00 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W74/04 ,  H04L5/0053 ,  H04L5/0092 ,  H04L9/40 ,  H04L69/22 ,  H04W72/0453 ,  H04W72/23 ,  H04L27/2601 ,  H04W48/12 ,  H04W48/17 ,  H04W84/12 ,  H04W88/08

Abstract: A method includes generating, by an apparatus, a physical protocol data unit (PPDU) for a downlink multiple-user transmission, wherein the PPDU includes: a legacy preamble, a high efficiency Wi-Fi Signaling Field 1 (HEW-SIG1), a high efficiency Wi-Fi Signaling Field 2 (HEW-SIG2), adjacent to the HEW-SIG1, and a data portion, and wherein the HEW-SIG1 comprises a HEW-SIG2 modulation and coding scheme (HEW-SIG2 MCS) field, the HEW-SIG2 MCS field indicates a transmission modulation and coding scheme (MCS) used to transmit the HEW-SIG2, the HEW-SIG1 further comprises a frame structure indication field, and the frame structure indication field indicates whether a frame structure of a scheduling transmission is an uplink structure or a downlink structure, and the HEW-SIG2 comprises resource indication information; and sending, by the apparatus, the PPDU.

公开(公告)号：US11784864B2

公开(公告)日：2023-10-10

申请号：US17850647

申请日：2022-06-27

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 ,  H04L5/00 ,  H04L69/323 ,  H04W84/12

CPC classification number: H04L27/2626 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2605 ,  H04L69/323 ,  H04L27/2603 ,  H04W84/12

Abstract: Embodiments of the present invention 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 invention 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：US11743821B2

公开(公告)日：2023-08-29

申请号：US18062978

申请日：2022-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

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

CPC classification number: H04W52/0229 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2603 ,  H04L27/26132 ,  H04W84/12 ,  Y02D30/70

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.

公开(公告)号：US11177924B2

公开(公告)日：2021-11-16

申请号：US16897002

申请日：2020-06-09

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

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：US10993259B2

公开(公告)日：2021-04-27

申请号：US16124971

申请日：2018-09-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuchen Guo ,  Meilu Lin ,  Jian Yu ,  Xun Yang ,  Le Liu

IPC: H04W74/08 ,  H04W80/02 ,  H04W84/12 ,  H04L5/00 ,  H04W74/02 ,  H04L1/16 ,  H04W74/00

Abstract: A resource indication processing method is disclosed, and is applied to a wireless local area network that uses an OFDMA technology. The method includes: sending or receiving a trigger frame, where the trigger frame includes information (I1) used to indicate whether the trigger frame allows random access transmission.

公开(公告)号：US10812306B2

公开(公告)日：2020-10-20

申请号：US15803654

申请日：2017-11-03

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：US10756865B2

公开(公告)日：2020-08-25

申请号：US16115296

申请日：2018-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/03 ,  H04B7/0452

Abstract: A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

公开(公告)号：US10721768B2

公开(公告)日：2020-07-21

申请号：US16411961

申请日：2019-05-14

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/04 ,  H04L29/06 ,  H04L5/00 ,  H04W72/04 ,  H04W48/12 ,  H04W48/00 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: A 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：US10574398B2

公开(公告)日：2020-02-25

申请号：US15904031

申请日：2018-02-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ming Gan ,  Le Liu ,  Yunbo Li

IPC: H04L1/00 ,  H04L1/16 ,  H04W28/06 ,  H04W72/04

Abstract: A receiving state indication method for an aggregate-media access control (MAC) protocol data unit (A-MPDU) and a receiving device in order to indicate a receiving state of the A-MPDU including a MAC service data unit (MSDU) fragment, where the method includes receiving, by a receive end, the A-MPDU from a transmit end, and sending, by the receive end to the transmit end, an acknowledgement frame indicating a receiving state of the A-MPDU when at least one MPDU in the A-MPDU is obtained by encapsulating the fragment of the MSDU, where the acknowledgement frame includes a fragment indication field and a receiving state field.