公开(公告)号：US20230016889A1

公开(公告)日：2023-01-19

申请号：US17951519

申请日：2022-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meihong ZHANG ,  Xiangwen GUO ,  Xiao HAN ,  Jiahui ZHANG ,  Rui DU ,  Chenchen LIU ,  Yan LONG ,  Yingxiang SUN

IPC: H04W16/28 ,  H04W24/10

Abstract: This provides a spatial multiplexing method and apparatus, to introduce WLAN sensing into a conventional spatial multiplexing mechanism and improve communication efficiency. The method includes: An AP sends a first request message to a first station and a second station, to request to measure channel quality in one or more sensing beam directions in a first SP; the AP sends a second request message to a third station and a fourth station, to request to measure channel quality in a communications beam direction in a second SP; the first station, the second station, the third station, and the fourth station separately perform measurement and report respective first measurement results; and the AP receives the first measurement results of the stations, and determines, based on the first measurement results, whether to perform spatial multiplexing on the first SP and the second SP.

公开(公告)号：US20220299629A1

公开(公告)日：2022-09-22

申请号：US17836659

申请日：2022-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: G01S13/84 ,  G01S7/00 ,  H04L27/26

Abstract: The disclosure provides ranging methods and apparatuses. One example method includes that a first device sends a first signal on a first channel. The first device receives, on a second channel, a second signal from a second device, where the second signal is a signal obtained after frequency conversion is performed on the first signal. The first device calculates a distance between the first device and the second device based on a phase difference between carriers of the second signal.

公开(公告)号：US20220286337A1

公开(公告)日：2022-09-08

申请号：US17745344

申请日：2022-05-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dandan LIANG ,  Ming GAN ,  Yang YANG ,  Xianfu LEI ,  Chenchen LIU ,  Zhengchun ZHOU ,  Wei LIN ,  Xiaohu TANG

IPC: H04L27/26 ,  H04W72/04

Abstract: Example methods for transmitting a physical layer protocol data unit (PPDU) and apparatus are described. One example method includes generating and transmitting a PPDU that includes a long training field (LTF). A length of a frequency-domain sequence of the LTF is greater than a first length, and the first length is a length of a frequency-domain sequence of an LTF of a first PPDU transmitted over a channel whose bandwidth is 160 MHz.

公开(公告)号：US20250119238A1

公开(公告)日：2025-04-10

申请号：US18984157

申请日：2024-12-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Bin QIAN ,  Zhengchun ZHOU ,  Xun YANG

IPC: H04L1/00 ,  H04B1/7176

Abstract: A PPDU-based communication method and an apparatus are disclosed One example method includes: A transmit end generates a PPDU based on a mapping relationship between a data symbol and a chip sequence, and sends the PPDU; and correspondingly, a receive end receives the PPDU, and then processes the PPDU based on the mapping relationship, where a minimum Hamming distance is greater than or equal to L/2.

公开(公告)号：US20240429967A1

公开(公告)日：2024-12-26

申请号：US18825243

申请日：2024-09-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bin QIAN ,  Chenchen LIU ,  Xun YANG ,  Kuan WU

IPC: H04B1/717

Abstract: Example signal transmission methods and apparatus are described. In one example method, a first initiating device sends a poll frame. The poll frame includes time-frequency location information of N first ultra-wideband (UWB) segment signals, and the poll frame further includes first delay information for each of M second responding devices to reply to the first initiating device with a response frame. The first initiating device receives a plurality of response frames based on a timestamp of the poll frame and the first delay information for each of the M second responding devices to reply to the first initiating device with the response frame.

公开(公告)号：US20240422723A1

公开(公告)日：2024-12-19

申请号：US18820769

申请日：2024-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Ziyang GUO ,  Xun YANG ,  Bin QIAN

IPC: H04W64/00 ,  H04B1/7163 ,  H04W24/10

Abstract: Embodiments of this application provide a communication method and apparatus. The method includes: sending, on a first narrowband channel, a first frame used to trigger data measurement; sending a first UWB signal and receiving a second UWB signal on a first ultra-wideband UWB channel, where the first UWB signal and the second UWB signal are used to perform the data measurement to obtain a data measurement result; and specifically, sending, on a second narrowband channel, a first trigger frame used to trigger reporting of a first measurement result. A trigger frame is delivered to trigger a measurement result reporting procedure. This avoids a reporting failure when the measurement result is directly reported on the first narrowband channel.

公开(公告)号：US20240195582A1

公开(公告)日：2024-06-13

申请号：US18586109

申请日：2024-02-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo GONG ,  Chenchen LIU ,  Jian YU ,  Ming GAN

IPC: H04L5/00

CPC classification number: H04L5/0053

Abstract: This application relates to a TB PPDU transmission method and apparatus. The method includes: A station receives a triggering frame from an AP, where the triggering frame includes DRU indication information indicating information about a DRU allocated to the station, and the DRU is one or more of predefined discrete resource blocks. Then, the station determines, based on an indication of the DRU indication information, the DRU allocated to the station, and sends a TB PPDU by using the DRU allocated to the station.

公开(公告)号：US20240163042A1

公开(公告)日：2024-05-16

申请号：US18409493

申请日：2024-01-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mengshi HU ,  Jian YU ,  Ming GAN ,  Chenchen LIU

IPC: H04L5/00 ,  H03M13/11 ,  H04W72/04 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H03M13/1102 ,  H04W72/04 ,  H04W72/23

Abstract: This application provides example communication methods and devices to improve wireless local area network (WLAN) communication efficiency. In an example method, an access point (AP) sends first indication information. The first indication information indicates a first resource unit (RU) of a station (STA). The AP sends second indication information. The second indication information indicates whether the STA is allowed to send a physical layer protocol data unit (PPDU) based on a part of the first RU, and when the second indication information indicates that the STA is allowed to send the PPDU based on the part of the first RU. The PPDU includes a low density parity check (LDPC) extra symbol segment. The AP receives a first PPDU. A second RU occupied by the first PPDU is the part of the first RU. The first PPDU includes the LDPC extra symbol segment.

公开(公告)号：US20240154777A1

公开(公告)日：2024-05-09

申请号：US18411477

申请日：2024-01-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Yuxin LU ,  Bo GONG ,  Ming GAN

IPC: H04L5/00

CPC classification number: H04L5/0098 ,  H04L5/0048

Abstract: This application provides a method and an apparatus for sending a physical layer protocol data unit, and a method and an apparatus for receiving a physical layer protocol data unit. The method includes: generating a physical layer protocol data unit PPDU; and sending the PPDU on one or more discrete resource units RUs, where the discrete RU includes a plurality of subcarriers that are discrete in frequency domain. The subcarriers in the discrete RU provided in embodiments are discontiguous, and transmit power of discrete subcarriers increases, so that a transmitting device can transmit the PPDU at higher transmit power. This application is applied to a wireless local area network system supporting a next-generation Wi-Fi protocol of IEEE 802.11ax, for example, 802.11 family of protocols such as 802.11be or EHT.

公开(公告)号：US20240031212A1

公开(公告)日：2024-01-25

申请号：US18481311

申请日：2023-10-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenchen LIU ,  Ming GAN ,  Yuxin LU

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2627 ,  H04L27/2614 ,  H04L5/0048

Abstract: The technology of this disclosure relates to a signal modulating method, a signal demodulating method, a device, a storage medium, and a program product. In the signal modulating method according to a first aspect of this disclosure, a sending device modulates a bit sequence onto a plurality of subcarriers through binary phase shift keying (BPSK) constellation point mapping, dual carrier modulation (DCM), and a duplication (DUP) operation, where the plurality of subcarriers include a first group of subcarriers and a second group of subcarriers. Then, the sending device changes a phase of first data carried in the first group of subcarriers by 90 degrees or minus 90 degrees, and further generates a modulation signal based on the first data that is carried in the first group of subcarriers and whose phase has been changed and second data carried in the second group of subcarriers.