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公开(公告)号：US20220279365A1
公开(公告)日：2022-09-01
申请号：US17743949
申请日：2022-05-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rui DU , Huangxun CHEN , Yuchen GUO , Chenchen LIU , Meihong ZHANG , Qian ZHANG , Xiao HAN
IPC: H04W24/02 , H04B17/309
Abstract: A first device sends a first message to a second device, where the first message indicates to the second device to hop to different channels at different times to send radio signals. The frequency bandwidth ranges of any two channels do not completely overlap, and the frequency bandwidth range of each channel is within a total frequency bandwidth range supported by the first device. The first device separately receives the radio signals that are sent by the second device on different channels at different times. The radio signals reach the first device after being reflected by an intermediate object. The first device measures the state information of the intermediate object based on the physical characteristics of the different radio signals that are separately received.
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公开(公告)号：US20220200753A1
公开(公告)日：2022-06-23
申请号：US17692292
申请日：2022-03-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Xiao HAN , Rui DU , Meihong ZHANG , Jian YU
Abstract: This application provides a method and an apparatus for sensing measurement. In a technical solution of this application, a transmit end of data may send an indication frame to a receive end of the data, where the indication frame may indicate a spatial mapping matrix used by the transmit end of the data to send the data to the receive end of the data. In this way, the receive end of the data can eliminate impact of spatial mapping on channel state information based on the spatial mapping matrix, to obtain actual channel state information, thereby completing sensing, positioning, and the like on an ambient environment or a passive target by using the obtained actual channel state information.
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公开(公告)号：US20240357520A1
公开(公告)日：2024-10-24
申请号：US18660381
申请日：2024-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Chenchen LIU , Ming GAN
Abstract: The technology of this application relates to a communication method and apparatus, to not only improve transmission efficiency in a distributed resource unit (DRU) transmission mode, but also improve system performance due to a relatively low peak-to-average ratio (PAPR) of a long training field (LTF) included in a trigger-based physical layer protocol data unit (TB PPDU) transmitted based on a DRU. In an example embodiment, a station (STA) receives a trigger frame, where the trigger frame includes DRU indication information, and the DRU indication information indicates a DRU used by the STA to send a TB PPDU. The STA sends the TB PPDU on the DRU, where the TB PPDU includes a long training field (LTF).
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公开(公告)号：US20240291588A1
公开(公告)日：2024-08-29
申请号：US18659114
申请日：2024-05-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Xun YANG
IPC: H04L1/00
CPC classification number: H04L1/0036 , H04L1/0033 , H04L1/0057
Abstract: An example data transmission method includes: generating a physical layer protocol data unit (PPDU), where the PPDU includes a physical layer payload field, the physical layer payload field is used to carry a first data bit, and the first data bit is determined based on a first mapping relationship and a to-be-transmitted data bit; and sending the PPDU. The data transmission method can improve a data transmission rate and enhance transmission performance of a system. A corresponding example data receiving method, and apparatuses are also described.
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公开(公告)号：US20240188059A1
公开(公告)日：2024-06-06
申请号：US18438651
申请日：2024-02-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD
Inventor： Chenchen LIU , Mingjiang WU , Xianfu LEI , Xiaohu TANG
IPC: H04W72/0453 , H04L27/26 , H04W72/542
CPC classification number: H04W72/0453 , H04L27/2634 , H04W72/542
Abstract: This application provides a data transmission method and a communication apparatus. The method includes: A first device receives a trigger frame, where the trigger frame indicates a resource unit RU allocated to the first device; and the first device sends first data to a second device, where the first data occupies a discrete subcarrier in the RU. Based on the method provided by this application, a transmit power of a subcarrier can be increased, and transmission performance can be ensured.
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Patent Agency Ranking
公开(公告)号：US20240187153A1
公开(公告)日：2024-06-06
申请号：US18437472
申请日：2024-02-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jian YU , Chenchen LIU , Mengshi HU , Ming GAN
CPC classification number: H04L5/0023 , H04L1/0003 , H04L5/0053 , H04W80/00
Abstract: A method includes: A transmitter device generates a link adaptation physical layer protocol data unit LA PPDU, where a signal of the LAPPDU on some of resources is a null signal, and the resources include any one or more of the following: a time resource, a frequency resource, a space resource, a time-frequency resource, a time-space resource, a frequency-space resource, and a time-space-frequency resource; the transmitter device sends the LA PPDU to a receiver device; and the receiver device determines a link adaptation result based on the null signal of the LA PPDU on the some of the resources.
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公开(公告)号：US20240163154A1
公开(公告)日：2024-05-16
申请号：US18410379
申请日：2024-01-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Baojian ZHOU , Chenchen LIU , Jiajin LUO , Xiaohui PENG , Xiaoyue HOU
IPC: H04L27/26
CPC classification number: H04L27/2646 , H04L27/26025
Abstract: Embodiments of the present invention disclose Orthogonal Frequency Division Multiplexing (OFDM) signal generation methods, related devices, and related application systems. An example method may include: obtaining parameter information of an OFDM signal; determining N first subcarriers and P second subcarriers from M subcarriers based on a preset parameter D; separately allocating signal power to the N first subcarriers and the P second subcarriers in two phases, to determine waveforms of the two phases, that is, a first waveform and a second waveform; and generating an OFDM signal including waveform symbols of the two phases.
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公开(公告)号：US20240154748A1
公开(公告)日：2024-05-09
申请号：US18398660
申请日：2023-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yuxin LU , Chenchen LIU , Ming GAN , Yunbo LI
CPC classification number: H04L5/0048 , H04L27/2613
Abstract: This application provides a method for sending data in a wireless network, and a related apparatus. The method includes: A first device determines a distributed RU allocated to the first device, where the distributed RU includes data subcarriers and pilot subcarriers, all subcarriers of one distributed RU are distributed on a first frequency band, a size of the first frequency band is 20 MHz, the first frequency band includes a maximum of 18 pilot subcarriers that are disposed at an interval, a quantity of pilot subcarriers included in one distributed RU is greater than or equal to 2, and at least two pilot subcarriers included in one distributed RU are spaced by at least M pilot subcarriers; and the first device sends a physical layer protocol data unit PPDU on the distributed RU.
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公开(公告)号：US20240137177A1
公开(公告)日：2024-04-25
申请号：US18390551
申请日：2023-12-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Baojian ZHOU , Jiajin LUO , Yongxia LYU , Chenchen LIU , Xiaohui PENG , Xiaoyue HOU
IPC: H04L5/00
CPC classification number: H04L5/0051 , H04L5/0007 , H04L5/0094
Abstract: This application provides a wireless sensing method and an apparatus. The method includes: A first communication apparatus receives a first signal and a second signal based on a first transmission parameter set and a second transmission parameter set respectively, and performs sensing based on the first signal and the second signal, to obtain a sensing result. The first transmission parameter set corresponds to the first signal, at least one parameter in the first transmission parameter set meets a first condition, and the first condition is related to a targeted ranging coverage; and the second transmission parameter set corresponds to the second signal, at least one parameter in the second transmission parameter set meets a second condition, and the second condition is related to targeted sensing precision.
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公开(公告)号：US20240121306A1
公开(公告)日：2024-04-11
申请号：US18541477
申请日：2023-12-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mengshi HU , Xiao HAN , Rui DU , Jian YU , Chenchen LIU , Yi LV , Xun YANG
Abstract: This application provides a feedback indication method and apparatus, to more comprehensively indicate a feedback, so as to improve applicability of a sensing technology in a scenario of a plurality of devices and a plurality of interactions. The method and the apparatus may be applied to a communication system. The method includes: A first device generates a first frame, and sends the first frame. The first frame includes first information, and the first information indicates a feedback type of a first feedback and/or a feedback type of a second feedback. The first feedback and the second feedback are feedbacks at different levels.
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