公开(公告)号：US20250055728A1

公开(公告)日：2025-02-13

申请号：US18930889

申请日：2024-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu ,  Genadiy Tsodik ,  Shimon Shilo ,  Ming Gan

IPC: H04L25/02 ,  H04L5/00

Abstract: Disclosed are a physical layer (PHY) protocol data unit (PPDU) transmission method and a related apparatus. The method includes: generating a PPDU, where the PPDU includes a universal signal field (U-SIG), and the U-SIG includes a subfield indicating that the PPDU is a null data packet (NDP); and sending the PPDU. In this way, a beamformee (Bfee) that receives the NDP can identify the NDP earlier. This helps improve efficiency of reading the NDP by the Bfee. The PPDU is an NDP used for a standard after 802.11ax. In a scenario in which wireless communication is performed by using the standard (for example, 802.11be) after 802.11ax, the Bfee can perform channel estimation based on the NDP.

公开(公告)号：US20240421948A1

公开(公告)日：2024-12-19

申请号：US18818551

申请日：2024-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Oded Redlich ,  Shimon Shilo ,  Jian Yu ,  Yunbo Li ,  Genadiy Tsodik

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

Abstract: The present disclosure suggests to expand and improve the method of utilizing channel resources in the 802.11be standard by allowing the use of multiple and non-contiguous portions of a channel. Supporting multiple resource units (MRUs) and non-contiguous resource units (RUs) improves the channel utilization by making it more efficient due to enhancing the capability of leveraging the channel selectivity. To this end, a wireless network device for resource allocation is provided and configured to define a non-contiguous MRU in the bandwidth of the channel. The channel comprises a plurality of RUs, and the MRU is defined based on non-punctured RUs after puncturing one or more of the RUs of the channel, and/or is defined by aggregating two or more non-adjacent RUs of the channel.

公开(公告)号：US12136970B2

公开(公告)日：2024-11-05

申请号：US17994045

申请日：2022-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi Hu ,  Jian Yu ,  Ming Gan

IPC: H04L23/02 ,  H04B7/0452 ,  H04L5/00

Abstract: A data transmission method includes generating a signaling field of a PPDU, where a channel bandwidth for transmitting the PPDU includes at least two frequency segments, which include a first frequency segment, and the channel bandwidth includes an RU for MU-MIMO transmission; the signaling field includes a common field and a user-specific field, the user-specific field includes a user field corresponding to the RU, and the user field is a user field of a station to which the RU is allocated and that parks on the first frequency segment; and the common field includes a resource unit allocation subfield corresponding to the RU, indicating the RU and a quantity of user fields corresponding to the RU; and sending the signaling field on the first frequency segment. Some embodiments are applied to a WLAN system that supports 802.11be standard.

公开(公告)号：US12133111B2

公开(公告)日：2024-10-29

申请号：US17860860

申请日：2022-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi Hu ,  Jian Yu ,  Ming Gan

IPC: H04W28/06

CPC classification number: H04W28/06

Abstract: This disclosure discloses puncturing information indication methods and communication apparatuses. In an implementation, a method comprises generating a physical layer protocol data unit (PPDU) comprising a preamble, wherein the preamble comprises a universal-SIG (U-SIG) field, wherein the U-SIG field comprises mode indication information and preamble puncturing status indication information, and wherein the preamble puncturing status indication information indicates a preamble puncturing status corresponding to a mode indicated by the mode indication information, and sending the PPDU.

公开(公告)号：US12107689B2

公开(公告)日：2024-10-01

申请号：US18352279

申请日：2023-07-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Ming Gan ,  Jian Yu ,  Mengshi Hu

IPC: H04L1/1829 ,  H04L1/1867 ,  H04W84/12

CPC classification number: H04L1/1861 ,  H04L1/1893 ,  H04W84/12

Abstract: In an information transmission method, a receiving device receives a data frame from a sending device. The data frame occupies a transmission resource block, and includes RU allocation information. The receiving device determines indication information based on a location of a 160 MHz channel with more data tones of the transmission resource block and a resource block size indicated by the RU allocation information. The receiving device then determines a response resource block based on the indication information and the RU allocation information, and sends an acknowledgment frame for the data frame to the sending device on the response resource block.

公开(公告)号：US12095604B2

公开(公告)日：2024-09-17

申请号：US17466637

申请日：2021-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Yu

IPC: H04L27/20 ,  H04L5/00 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04L27/2085 ,  H04L5/001 ,  H04W80/02 ,  H04W84/12

Abstract: This application provides information sending and receiving methods and apparatuses. This application provides a new PPDU format. In some instances, a long training sequence in the new PPDU format is orthogonal to a legacy long training sequence or orthogonal to a high throughput long training sequence. By using this long training sequence, a format of a PPDU can be automatically detected, so as to further process the PPDU according to a network standard corresponding to the format of the PPDU. In addition, when a target long training field is read, the format of the PPDU can be detected, thereby, in at least some implementations, saving time for detecting the format of the PPDU, improving efficiency of detecting the format of the PPDU, and completing a task of detecting the format of the PPDU as early as possible.

公开(公告)号：US20240297745A1

公开(公告)日：2024-09-05

申请号：US18661527

申请日：2024-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuchen Guo ,  Ming Gan ,  Jian Yu ,  Mengshi Hu

IPC: H04L1/1829 ,  H04L1/1867 ,  H04W84/12

CPC classification number: H04L1/1861 ,  H04L1/1893 ,  H04W84/12

Abstract: In an information transmission method, a sending device sends a data frame to a receiving device. The data frame occupies a transmission resource block, a bandwidth occupied by the transmission resource block is greater than 160 MHz, and the data frame comprises resource unit RU allocation information. The sending device determines indication information based on a resource block size indicated by the RU allocation information and a location of a 160 MHz channel within the bandwidth occupied by the transmission resource block, with the 160 MHz channel having more data tones in the transmission resource block. The sending device determines a response resource block based on the indication information and the RU allocation information, and then receives an acknowledgment frame for the data frame from the receiving device on the response resource block.

公开(公告)号：US12075388B2

公开(公告)日：2024-08-27

申请号：US17513712

申请日：2021-10-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Oded Redlich ,  Shimon Shilo ,  Jian Yu ,  Yunbo Li ,  Ming Gan ,  Genadiy Tsodik

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/044 ,  H04W74/0808

CPC classification number: H04W72/044 ,  H04L5/0037 ,  H04W74/0808

Abstract: A signaling method and device can support channel puncturing of BW size. Embodiments provide various options for signaling methods, each of which may be suitable for supporting single-user and/or multi-user communication. A wireless network device is suitable for channel puncturing, and can include information regarding the channel puncturing in a preamble of a transmitted packet.

公开(公告)号：US20240284505A1

公开(公告)日：2024-08-22

申请号：US18652534

申请日：2024-05-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Avner Epstein ,  Shimon Shilo ,  Arik Klein ,  Oded Redlich ,  Jian Yu ,  Doron Ezri

IPC: H04W74/0808 ,  H04L1/00 ,  H04L1/1607 ,  H04W84/12

CPC classification number: H04W74/0808 ,  H04L1/0013 ,  H04L1/1614 ,  H04W84/12

Abstract: An access point, AP (110), configured to perform a sounding procedure with one or more associated non-AP stations (120) in a wireless local area network (100) is provided. The AP (110) comprises a processing circuitry (111) configured to generate a null data PPDU announcement, NDPA, frame, wherein the NDPA frame comprises for each of the one or more associated non-AP stations (120) a station info field. The station info field comprises a partial BW info subfield, including a feedback bitmap and an indication of a resolution and/or a range of the feedback bitmap with a 20 MHz or 40 MHz subchannel resolution for a Sounding NDP with a bandwidth of up to 320 MHz. The AP (110) further comprises a communication interface (113) configured to transmit the NDPA frame to the one or more associated non-AP stations (120). Moreover, a corresponding non-AP station (120) is disclosed.

公开(公告)号：US20240235722A1

公开(公告)日：2024-07-11

申请号：US18438029

申请日：2024-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jian Yu ,  Chenggang Jiang ,  Mengshi Hu ,  Ming Gan

IPC: H04L1/00 ,  H04W56/00

CPC classification number: H04L1/0008 ,  H04L1/0063 ,  H04W56/0045

Abstract: A method for sending a physical layer protocol data unit (PPDU) may be applied to some scenarios in which PPDU alignment is implemented. For example, in multi-link transmission of non-simultaneous transmit and receive, it is ensured that a time error of simultaneous ending of a plurality of PPDUs does not exceed 8 microseconds. In the method, a transmitter controls duration of one or more fields of a packet extension (PE) field, an Extremely High Throughput (EHT)-signal (SIG) field, and an EHT-long training field (LTF) field of the PPDU, and/or delays a sending time of the PPDU so that an error between an end time of the PPDU and a specific time (for example, a first time) is not greater than an error threshold, thereby implementing PPDU alignment.