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公开(公告)号：US20230412216A1
公开(公告)日：2023-12-21
申请号：US18456335
申请日：2023-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Chenchen LIU , Ming GAN
IPC: H04B7/0413 , H04L27/26
CPC classification number: H04B7/0413 , H04L27/2607
Abstract: This application relates to communication methods, apparatuses, systems and computer-readable storage mediums. In an example method, a first communication apparatus generates a physical layer protocol data unit (PPDU), where the PPDU includes a short training field (STF), a long training field (LTF), and a data field. Cyclic shift is performed on at least one of the STF, the LTF, or the data field based on a cyclic shift diversity (CSD). The CSD includes L elements, and L is a maximum number of spatial streams supported by the first communication apparatus. The maximum number of spatial streams supported by the first communication apparatus is greater than 8. The example method further includes the first communication apparatus sending the PPDU to a second communication apparatus.
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32.发明公开公开(公告)号：US20230345283A1
公开(公告)日：2023-10-26
申请号：US18341059
申请日：2023-06-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yingxiang SUN , Chenchen LIU , Xiao HAN , Rui DU , Meihong ZHANG , Xun YANG
IPC: H04W24/10
CPC classification number: H04W24/10
Abstract: A channel information feedback method. The method can be applied to a first wireless device, and includes: receiving a first message from a second wireless device, where the first message notifies channel information measurement, the first message carries first indication information related to the first wireless device, and the first indication information indicates a feedback condition; performing channel information measurement based on the first message; determining a first channel information variation based on currently measured channel information and historically measured channel information; and feeding back a measurement report to the second wireless device when the first channel information variation meets the feedback condition.
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公开(公告)号：US20230224203A1
公开(公告)日：2023-07-13
申请号：US18161141
申请日：2023-01-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Dandan LIANG , Ming GAN
IPC: H04L27/26
CPC classification number: H04L27/262 , H04W84/12
Abstract: A method for transmitting an extremely high throughput long training field (EHT-LTF) sequence includes: A first communication device generates and sends an extremely high throughput physical layer protocol data unit (EHT PPDU), where the EHT PPDU includes an EHT-LTF; and correspondingly, a second communication device receives the EHT PPDU, and parses the EHT-LTF in the received EHT PPDU. In this way, an LTF sequence can be designed for the IEEE 802.11be standard, and a PAPR value of the LTF sequence on a resource unit can be reduced.
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公开(公告)号：US20230132850A1
公开(公告)日：2023-05-04
申请号：US18147035
申请日：2022-12-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Yunbo LI , Rui DU , Meihong ZHANG , Xiao HAN
Abstract: This application provides a sensing measurement information exchange apparatus, applied to a first station. The apparatus includes: a transceiver unit, configured to receive sensing measurement report information sent by a second station, where the sensing measurement report information includes N groups of first measurement results, where the N groups of first measurement results are in a one-to-one correspondence with N first transmission paths between the first station and the second station, and each group of first measurement results includes an angle of arrival, relative time of flight, and a Doppler frequency shift of a corresponding first transmission path; and a processing unit, configured to obtain angles of arrival, relative time of flight, and Doppler frequency shifts of the N first transmission paths based on the sensing measurement report information. This application implements measurement of locations and instantaneous speeds of a plurality of passive targets.
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公开(公告)号：US20230064452A1
公开(公告)日：2023-03-02
申请号：US17975884
申请日：2022-10-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Dandan LIANG , Jian YU , Ming GAN , Meihong ZHANG
Abstract: This application discloses a data transmission method that includes: scrambling to-be-transmitted data, to obtain scrambled data; and sending the scrambled data to a receive device. The initialization bits of a scrambler used to scramble the data include a first bit sequence and a second bit sequence. The first bit sequence is carried in a service field of the to-be-transmitted data, the second bit sequence reuses a bit in a signal field of a physical layer protocol data unit (PPDU), and the quantity of the initialization bits is equal to the order of the scrambler. In embodiments of this application, when the transmit device and the receive device use the scrambler with a higher order than that in the conventional technology, the initialization bits of the scrambler are based on bits in an existing service field used for data scrambling and reused bits in some signal fields.
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Patent Agency Ranking
公开(公告)号：US20220268912A1
公开(公告)日：2022-08-25
申请号：US17740487
申请日：2022-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Meihong ZHANG , Xiangwen GUO , Jiahui ZHANG , Xiao HAN , Rui DU , Chenchen LIU , Li YAN , Xuming FANG
IPC: G01S13/06
Abstract: A method for assisting in locating a target object, a method for locating a target object, and an apparatus. In an embodiment, the method for assisting in locating a target object is applied to a station (STA), and the method includes: receiving a wireless sensing sounding frame including radar measurement indication information from an access point (AP); sending an uplink data packet to the AP, recording a first sending moment, and performing radar measurement on a target object based on the radar measurement indication information to obtain a radar measurement result; receiving a downlink data packet from the AP, and recording a first receiving moment; and sending the first sending moment, the first receiving moment and the radar measurement result to the AP.
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公开(公告)号：US20220066018A1
公开(公告)日：2022-03-03
申请号：US17454101
申请日：2021-11-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiao HAN , Cailian DENG , Rui DU , Chenchen LIU , Jian YU , Meihong ZHANG , Li YAN , Yan LONG
Abstract: A radar measurement method and an apparatus are disclosed, which relate to the field of communications technologies, and are used to support radar measurement in a wireless local area network (WLAN). The method includes: An access point (AP) generates a first frame, where the first frame includes radar measurement information. Then the AP sends the first frame to M stations (STAs), to configure the way the M STAs perform radar measurement. This application is applicable to a radar measurement procedure.
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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.
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.
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公开(公告)号：US20240340206A1
公开(公告)日：2024-10-10
申请号：US18671229
申请日：2024-05-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yajing ZHOU , Chenchen LIU , Zhengchun ZHOU , Xianfu LEI
IPC: H04L27/26 , H04L1/1607 , H04L27/34
CPC classification number: H04L27/261 , H04L1/1642 , H04L27/34
Abstract: This application provides a sounding frame transmission method and a related apparatus. The method is applied to a first device, and the method includes: generating a sounding frame, where the sounding frame includes a first field, the first field includes a predefined first sequence, the first sequence includes a sequence obtained after a second sequence is modulated by using at least one of the following modulation modes, and the modulation modes include: QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, and 4096-QAM; and sending the sounding frame. In this way, channel quality of a communication link in at least one of modulation modes of QPSK, 16-QAM, 64-QAM, 256-QAM, 1024-QAM, and 4096-QAM can be accurately measured when channel measurement is performed by using the first sequence, thereby enriching application scenarios of an EHT-LTF sequence.
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40.发明公开公开(公告)号：US20240205899A1
公开(公告)日：2024-06-20
申请号：US18584595
申请日：2024-02-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Mengshi HU , Chenchen LIU , Jian YU , Ming GAN
IPC: H04W72/0453 , H04L5/00
CPC classification number: H04W72/0453 , H04L5/0092
Abstract: Embodiments of this disclosure provide an information transmission method, a communication apparatus, a storage medium, a chip, and a program product. The method includes: receiving, by a first device, a trigger-based frame from a second device, where the trigger-based frame includes distributed resource unit indication information; determining one or more distributed resource blocks based on the distributed resource unit indication information, where each distributed resource block includes N1 data subcarriers and N2 pilot subcarriers, and an absolute value of an index difference between every two data subcarriers of N3 data subcarriers in the N1 data subcarriers is greater than or equal to 4; and sending a response to the trigger-based frame to the second device on the one or more distributed resource blocks.
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