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公开(公告)号：US20250048332A1
公开(公告)日：2025-02-06
申请号：US18914870
申请日：2024-10-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Qian , Zhengchun Zhou , Chenchen Liu , Yang Yang , Xun Yang
IPC: H04W64/00
Abstract: An ultra-wideband (UWB) signal transmission method includes that a plurality of initiators simultaneously sends a UWB signal. A UWB signal sent by any initiator is obtained by performing pulse shaping and modulation on a first sequence. The first sequence is obtained by performing a cyclic shift on a second sequence, and a number of cyclic shift bits is determined based on a shift factor and a step size of the cyclic shift that are of the any initiator. A responder determines time of arrival of the plurality of UWB signals based on the plurality of received UWB signals and the second sequence.
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公开(公告)号：US20240430002A1
公开(公告)日：2024-12-26
申请号：US18828418
申请日：2024-09-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chenchen Liu , Peng Liu , Xun Yang
Abstract: A ranging or sensing method comprising performing clear channel assessment (CCA) on an ultra-wideband (UWB) channel to obtain first indication information, where the first indication information indicates at least two first idle time segments in one time unit; and sending at least one segment signal of a first UWB signal in a first target idle time segment in each time unit, where the first UWB signal is for performing data measurement, and the at least two first idle time segments include the first target idle time segment.
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公开(公告)号：US12126479B2
公开(公告)日：2024-10-22
申请号：US18186225
申请日：2023-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen Liu , Ming Gan , Jian Yu
CPC classification number: H04L27/2613 , H04L5/0048
Abstract: This disclosure relates to the wireless communication field, for example, is applied to a wireless local area network supporting the 802.11 standard, and in particular, to a physical layer protocol data unit (PPDU) transmission method and a related apparatus. The method includes: A first communication device generates and sends a first PPDU, where the first PPDU carries rotation coefficient indication information indicating a rotation coefficient of at least one field, which comprises at least one of an extremely high throughput short training field (EHT-STF) or an extremely high throughput long training field (EHT-LTF) and correspond to a frequency segment on which the first PPDU is transmitted, and the first PPDU is a sub-PPDU in an aggregated PPDU or a PPDU on a frequency segment among at least one PPDU in a multi-frequency segment transmission mode.
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公开(公告)号：US20240259241A1
公开(公告)日：2024-08-01
申请号：US18631912
申请日：2024-04-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen Liu , Xun Yang , Xiaohui Peng
CPC classification number: H04L27/2035 , H04J3/0658
Abstract: Embodiments of this application provide a method and an apparatus for transmitting a physical layer protocol data unit. The method includes: generating a synchronization header field based on a first sequence or a third sequence, where a side lobe of a periodic cross-correlation function of the first sequence and a second sequence is a constant value, the first sequence is a binary sequence consisting of 1 and 0, the second sequence is a binary phase shift keying sequence corresponding to the first sequence, a side lobe of a periodic autocorrelation function of the third sequence is a constant value, and the third sequence is a binary phase shift keying sequence consisting of 1 and −1; and sending a physical layer protocol data unit PPDU on a target channel, where the PPDU includes the synchronization header field.
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公开(公告)号：US11831574B2
公开(公告)日：2023-11-28
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
CPC classification number: H04L5/0048 , H04L5/0023 , H04L5/0094 , H04L25/0204
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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Patent Agency Ranking
公开(公告)号：US20230261849A1
公开(公告)日：2023-08-17
申请号：US18308442
申请日：2023-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming Gan , Yiqing Li , Chenchen Liu , Yunbo Li , Yuchen Guo , Jian Yu , Xun Yang
IPC: H04L5/00 , H04W72/0457 , H04W28/20
CPC classification number: H04L5/0092 , H04L5/0044 , H04W72/0457 , H04W28/20 , H04W84/12
Abstract: This application relates to the wireless communications field, for example, is applicable to a wireless local area network supporting the 802.11be standard, and in particular, to a PPDU uplink bandwidth indication method and a related apparatus. The method includes: An AP generates and sends a trigger frame. The trigger frame carries first indication information, where the first indication information directly indicates or jointly indicates an EHT TB PPDU bandwidth or an uplink PPDU total transmission bandwidth. The trigger frame carries second indication information, where the second indication information indicates distribution of an HE TB PPDU and/or an EHT TB PPDU in the uplink PPDU total transmission bandwidth, or directly indicate whether an EHT station transmits an HE TB PPDU or an EHT TB PPDU.
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公开(公告)号：US20230198822A1
公开(公告)日：2023-06-22
申请号：US18166965
申请日：2023-02-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen Liu , Genadiy Tsodik , Dandan Liang , Yan Xin , Ming Gan , Shimon Shilo
IPC: H04L27/26
CPC classification number: H04L27/2615
Abstract: This disclosure provides data sending and receiving methods and apparatuses. In an implementation, a device performs a non-replication operation on a frequency domain sequence on subcarriers of a first bandwidth, to obtain a frequency domain sequence on subcarriers of a second bandwidth in a transmission bandwidth, transforms the frequency domain sequence on the subcarriers of the first bandwidth and the frequency domain sequence on the subcarriers of the second bandwidth into a time domain, and performs radio frequency processing on time domain data and then sends the processed time domain data.
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公开(公告)号：US20230119491A1
公开(公告)日：2023-04-20
申请号：US18066933
申请日：2022-12-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen Liu , Dandan Liang , Ming Gan
Abstract: This application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a physical layer protocol data unit, and for example, is applied to a wireless local area network. The method includes: A first communications device generates a PPDU and may send the PPDU, where the PPDU includes an LTF sequence; and correspondingly, a second communications device receives the PPDU, and parses the PPDU to obtain the LTF sequence included in the PPDU. Embodiments of this application can be used to design an LTF sequence that has a relatively low PAPR on entire bandwidth, on a single resource unit, on a combined resource unit, and in a considered multi-stream scenario.
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公开(公告)号：US20230115766A1
公开(公告)日：2023-04-13
申请号：US18073381
申请日：2022-12-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dandan Liang , Ming Gan , Zhengchun Zhou , Xianfu Lei , Yang Yang , Xiaohu Tang , Wei Lin , Chenchen Liu
Abstract: Embodiments of this application provide a method and an apparatus for transmitting a physical layer protocol data unit, to design a short training field sequence for a larger channel bandwidth. The short training field sequence designed in this application has a smaller peak-to-average power ratio PAPR and better performance. The method includes: generating a physical layer protocol data unit PPDU that complies with the 802.11be standard, where the PPDU includes a short training field, and a quantity of subcarriers of a frequency domain sequence of the short training field is greater than 2048; and sending the PPDU on a target channel, where a bandwidth of the target channel is greater than or equal to 160 MHz.
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10.发明申请公开(公告)号：US20250119176A1
公开(公告)日：2025-04-10
申请号：US18989294
申请日：2024-12-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Qian , Chenchen Liu , Xun Yang
IPC: H04B1/7183 , H04L5/00 , H04W56/00
Abstract: A signal synchronization method includes sending a narrowband signal, where a PPDU of the narrowband signal includes at least one pilot symbol, and the pilot symbol and the PPDU are used by a receiving device to obtain time-frequency synchronization information of an ultra-wideband signal, and sending the ultra-wideband signal. A carrier frequency offset is estimated based on these inserted pilot symbols and a preamble in the PPDU.
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