公开(公告)号：US20250125847A1

公开(公告)日：2025-04-17

申请号：US18978292

申请日：2024-12-12

Applicant: HUAWEI TECHNOLOGIES CO, LTD.

Inventor： Rui DU ,  Fabiola COLONE ,  Francesca FILIPPINI ,  Marco SEGLIO ,  Xiao HAN

IPC: H04B7/06 ,  H04B7/10 ,  H04W8/22

Abstract: This application relates to the field of communication technologies, and provides an information transmission method and an apparatus. In an example method, a first device sends a directional multi-gigabit (DMG) sensing beam descriptor element to a second device, where the DMG sensing beam descriptor element includes a beam descriptor field, and the beam descriptor field indicates a beam polarization direction. The first device further sends a physical layer protocol data unit (PPDU) to the second device in the beam polarization direction, where the PPDU is used for sensing measurement.

公开(公告)号：US20250024386A1

公开(公告)日：2025-01-16

申请号：US18903210

申请日：2024-10-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Wei RUAN ,  Mengshi HU ,  Gerile NAREN ,  Xiao HAN ,  Li SUN

IPC: H04W52/52 ,  H04W16/28 ,  H04W24/10

Abstract: This application relates to the field of communication technologies, and provides an information transmission method and an apparatus, to improve sensing performance. This application is used in a wireless local area network system supporting IEEE 802.11ax next-generation Wi-Fi protocols, for example, 802.11be, Wi-Fi 7, EHT, 802.11ad, 802.11ay, and 802.11bf, a next-generation 802.11be protocol, for example, Wi-Fi 8, or a next-generation 802.11 series protocol. In the method, a first device receives, from a second device, a PPDU for sensing measurement. The first device sends, to the second device, information indicating AGC.

公开(公告)号：US20240365120A1

公开(公告)日：2024-10-31

申请号：US18767512

申请日：2024-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Michael MONTEMURRO ,  Xiao HAN ,  Rui DU ,  Li SUN ,  Peng LIU ,  Xun YANG ,  Gerile NAREN

IPC: H04W12/08

CPC classification number: H04W12/08

Abstract: Example data transmission methods and apparatus are described. One example method includes: An access point sends first indication information to a first station, where the first indication information indicates that the first station is accepted to obtain sensing information of a second station. The access point sends the sensing information of the second station to the first station, where the access point is a proxy of the first station, the proxy is configured to obtain the sensing information of the second station for the first station, the first station is a sensing by proxy (SBP) requesting station, and the second station is a SBP responding station.

公开(公告)号：US20240356779A1

公开(公告)日：2024-10-24

申请号：US18757775

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Qing WEN ,  Chenchen LIU ,  Xiao HAN ,  Yan LONG ,  Rong HE

IPC: H04L25/02 ,  H04L9/40 ,  H04W84/12

CPC classification number: H04L25/0226 ,  H04L63/20 ,  H04W84/12

Abstract: This application provides an information feedback method and a related apparatus. In the method, a first apparatus sends, to a second apparatus, a first frame that carries a first field used to perform channel estimation, and the first apparatus receives a first feedback frame from the second apparatus. The first feedback frame includes channel state information CSI, the CSI is CSI from the first apparatus to the second apparatus, the CSI is obtained by the second apparatus by performing channel estimation based on the received first field and a second field, and the second field is not the first field.

公开(公告)号：US20240314839A1

公开(公告)日：2024-09-19

申请号：US18672578

申请日：2024-05-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Yifei LI ,  Yan LONG ,  Rong HE ,  Xuming FANG ,  Yunbo LI ,  Xiao HAN ,  Rui DU ,  Yi LV ,  Xun YANG

IPC: H04W74/0808 ,  H04B7/06 ,  H04W74/08

CPC classification number: H04W74/0808 ,  H04B7/0626 ,  H04W74/0866

Abstract: This application provides a communication method and an apparatus, to implement a channel sensing procedure between different apparatuses while meeting a communication requirement, thereby improving communication efficiency of a WLAN system and reducing overheads. In the method, a first apparatus sends a first frame to a second apparatus, where the first frame is used to request channel sensing; and the first apparatus receives a second frame from the second apparatus, where the second frame includes channel sensing information between the first apparatus and the second apparatus, the channel sensing information is determined based on a part of or all of n PPDUs, the n PPDUs are PPDUs sent by the first apparatus, and n is greater than or equal to 1.

公开(公告)号：US20240118379A1

公开(公告)日：2024-04-11

申请号：US18541563

申请日：2023-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Chenchen LIU ,  Meihong ZHANG ,  Xiao HAN ,  Mengshi HU ,  Xun YANG

IPC: G01S7/00 ,  G01S13/86 ,  H04L25/02

CPC classification number: G01S7/006 ,  G01S13/86 ,  H04L25/0202 ,  H04W84/12

Abstract: A sensing result feedback method, an apparatus, a device, and a medium are provided. In an example method, a sensing initiating device sends an indication about truncation and feedback of a time domain channel estimation and sensing sequence to a first sensing responding device. The first sensing responding device truncates the received time domain channel estimation and sensing sequence based on the indication, and feeds back the truncated time domain channel estimation and sensing sequence. Therefore, a sensing sender may perform channel estimation and target sensing based on the truncated time domain channel estimation and sensing sequence. In this manner, feedback overheads can be significantly reduced, and sensing performance can be ensured to some extent.

公开(公告)号：US20240113758A1

公开(公告)日：2024-04-04

申请号：US18533873

申请日：2023-12-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Xiao HAN ,  Chenchen LIU ,  Rui DU ,  Yunbo LI ,  Yi LV ,  Xun YANG

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B7/0636

Abstract: The present disclosure relates to feedback methods and apparatuses. In one example method, a first communication apparatus may receive first information. The first information includes at least one of channel state information (CSI) measurement quantity indication information for channel variation calculation, a CSI type and a rule that are for the channel variation calculation, or a feedback suggestion parameter. The feedback suggestion parameter indicates a suggested feedback form. The first information is used to select a second communication apparatus. The first communication apparatus may determine, based on the first information, whether to trigger the second communication apparatus/apparatuses to send a feedback result. Correspondingly, the first communication apparatus receives the feedback result.

公开(公告)号：US20240022290A1

公开(公告)日：2024-01-18

申请号：US18370491

申请日：2023-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui DU ,  Chenchen LIU ,  Xiao HAN ,  Meihong ZHANG ,  Yingxiang SUN ,  Yunbo LI

IPC: H04B7/0426 ,  H04B7/06

CPC classification number: H04B7/0426 ,  H04B7/0626

Abstract: Provided are a method for performing feedback based on channel state information (CSI), a device, and a medium. In an example method, a sensing response device obtains CSI data based on channel estimation, and generates power delay profile (PDP) data based on the CSI data. Then, the sensing response device feeds back a part of PDP data in the generated PDP data. Therefore, feedback overheads are reduced. In addition, sensing performance is ensured to some extent.

公开(公告)号：US20240014936A1

公开(公告)日：2024-01-11

申请号：US18472757

申请日：2023-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohui PENG ,  Jiajin LUO ,  Rui DU ,  Baojian ZHOU ,  Min YAN ,  Yan CHEN ,  Yinghao GUO

IPC: H04L1/08 ,  H04L5/00

CPC classification number: H04L1/08 ,  H04L5/0053

Abstract: A sensing method includes determining, by a first communication apparatus, first information. The first information indicates a pulse repetition interval (PRI). The sensing method also includes sending, by the first communication apparatus, the first information to a second communication apparatus. The first information is used by the second communication apparatus to send a reference signal, and a periodicity of the reference signal in time domain is less than or equal to the PRI. The sensing method further includes receiving, by the first communication apparatus, the reference signal from the second communication apparatus. The sending method additionally includes sensing, by the first communication apparatus, a to-be-sensed target based on the reference signal.

公开(公告)号：US20220308194A1

公开(公告)日：2022-09-29

申请号：US17837843

申请日：2022-06-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meihong ZHANG ,  Xiao HAN ,  Rui DU ,  Chenchen LIU

IPC: G01S13/00 ,  G01S13/10 ,  G01S7/00

Abstract: This application provides example object locating methods and apparatuses. One example method includes performing, by a first device, pulse measurement on a target object with assistance of a second device, where the pulse measurement is performed on the target object by using two types of pulse signals, and pulse repetition frequencies of the two types of pulse signals are different. The first device can then locate the target object based on a pulse measurement result of the pulse measurement.