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公开(公告)号：US20240422586A1
公开(公告)日：2024-12-19
申请号：US18821580
申请日：2024-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rui DU , Chenchen LIU , Mengshi HU , Gerile NAREN , Xiao HAN , Xun YANG
Abstract: Embodiments of this application provide an information indication method and a communication apparatus. The method is applied to a wireless local area network system that supports various IEEE 802.11 protocols such as the 802.11bf series protocols. The method includes: generating a PPDU, where the PPDU includes sensing indication information, the sensing indication information indicates that the PPDU is a PPDU used for sensing measurement, and the PPDU is a directional multi-gigabit DMG single carrier mode PPDU, an enhanced directional multi-gigabit EDMG single carrier mode PPDU, or an EDMG orthogonal frequency division multiplexing mode PPDU; and sending the PPDU. In this manner, a sensing PPDU and a non-sensing PPDU in a communication system can be distinguished, so that a receive end optimizes sensing performance.
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公开(公告)号：US20240235757A1
公开(公告)日：2024-07-11
申请号：US18613252
申请日：2024-03-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Mengshi HU , Chenchen LIU , Jian YU , Ming GAN
CPC classification number: H04L5/0046 , H04L5/0017 , H04L27/2621
Abstract: Embodiments of this application provide a data transmission method and a communication apparatus. The method includes: determining an aggregated physical layer protocol data unit A-PPDU, where the A-PPDU includes at least two PPDUs belonging to different protocols, the A-PPDU includes a first sequence, the first sequence includes N segments of subsequences, any of the N segments of subsequences is obtained by performing phase rotation on a high efficiency-long training field HE LTF sequence and/or an extreme high throughput-long training field EHT LTF sequence based on a phase rotation parameter corresponding to the HE LTF sequence and/or a phase rotation parameter corresponding to the EHT LTF sequence, N phase rotation parameters corresponding to the N segments of subsequences include at least one phase rotation parameter whose value is −1, and N is a positive integer greater than or equal to 2; and sending the A-PPDU.
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公开(公告)号：US20240195670A1
公开(公告)日：2024-06-13
申请号：US18585365
申请日：2024-02-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Yajing ZHOU , Zhengchun ZHOU , Yang YANG
CPC classification number: H04L27/2613 , H04L25/0204 , H04L27/2614
Abstract: A long training field sequence transmission method and apparatus are provided, to send an LTF sequence on a discrete RU, and reduce a PAPR. The method includes: A STA determines an first LTF sequence, the first LTF sequence is a sequence segment that is in a total LTF sequence corresponding to a channel bandwidth and that corresponds to a first RU, N subcarriers in the channel bandwidth are in a one-to-one correspondence with N components of the total LTF sequence, the first RU is M consecutive first subcarriers in the N subcarriers, the first LTF sequence is M components in the N components; and the STA sends the first LTF sequence to an AP on a discrete RU, where the discrete RU includes M inconsecutive second subcarriers, and the M components of the first LTF sequence are respectively sent on the M inconsecutive second subcarriers.
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公开(公告)号：US20240129099A1
公开(公告)日：2024-04-18
申请号：US18391347
申请日：2023-12-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Bo GONG , Jian YU , Yuxin LU , Ming GAN
IPC: H04L5/00
CPC classification number: H04L5/0092 , H04L5/0044 , H04L5/0048
Abstract: Embodiments of this disclosure provide a communication method and device, a storage medium, and a program product. According to the communication method of this disclosure, a physical layer protocol data unit (PPDU) is transmitted or received based on a tone plan of a first bandwidth. The tone plan includes a physical resource unit (PRU), and the PRU includes discrete subcarriers. According to embodiments of this disclosure, an original nominal RU is processed to obtain a PRU including discrete subcarriers. Discretized subcarriers of the PRU may be evenly distributed on a larger bandwidth without changing subcarrier division of the original nominal RU. When it is ensured that a large PAPR is not generated in data transmission due to discrete subcarriers, a transmit end can perform communication at a high transmit power.
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公开(公告)号：US20240111017A1
公开(公告)日：2024-04-04
申请号：US18517770
申请日：2023-11-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Baojian ZHOU , Jiajin LUO , Xiaohui PENG , Xiaoyue HOU , Chenchen LIU
Abstract: A transmit end receives a first ranging parameter from a receive end, where the first ranging parameter is received in an Nth time of ranging, and the first ranging parameter includes first ranging precision of a ranging signal and/or a first signal-to-noise ratio of the ranging signal (S310). The transmit end determines a first ranging waveform based on the first ranging parameter (S320). The transmit end sends the first ranging waveform to the receive end (S330). The transmit end receives a second ranging parameter from the receive end, where the second ranging parameter is determined based on the first ranging waveform, the second ranging parameter includes second ranging precision of the ranging signal and/or a second signal-to-noise ratio of the ranging signal, and the second ranging precision is less than the first ranging precision (S340).
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Patent Agency Ranking
公开(公告)号：US20240056852A1
公开(公告)日：2024-02-15
申请号：US18492609
申请日：2023-10-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Mengshi HU , Yingxiang SUN , Chenchen LIU , Xiao HAN , Rui DU , Meihong ZHANG , Xun YANG
Abstract: Embodiments of this application provide a communication method and apparatus, to improve robustness of a communication process and improve accuracy of a sensing result. The communication method includes: generating a first physical layer protocol data unit (PPDU), where the first PPDU includes a first field that indicates that a variation of a channel state does not exceed a threshold; and sending the first PPDU.
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公开(公告)号：US20240056342A1
公开(公告)日：2024-02-15
申请号：US18493885
申请日：2023-10-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenchen LIU , Bo GONG , Ming GAN
CPC classification number: H04L27/2621 , H04L5/001
Abstract: This application relates to a communication method and related apparatuses. The method includes: A first communication apparatus generates and sends a first frequency domain signal, where the first frequency domain signal includes a sub signal obtained by mapping N pieces of first frequency domain data to a first group of subcarriers and a subsignal obtained by mapping N pieces of second frequency domain data to a second group of subcarriers, and a spacing between the first group of subcarriers and the second group of subcarriers is odd-numbered subcarriers. The N pieces of first frequency domain data are obtained by multiplying data at even positions or data at odd positions in N pieces of original frequency domain data by i or —i, and the N pieces of second frequency domain data are obtained by performing reverse arrangement and/or negation on the N pieces of first frequency domain data.
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18.发明公开公开(公告)号：US20230403126A1
公开(公告)日：2023-12-14
申请号：US18455889
申请日：2023-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo GONG , Mengshi HU , Jian YU , Chenchen LIU , Ming GAN
IPC: H04L5/00 , H04W72/1268
CPC classification number: H04L5/0094 , H04L5/001 , H04L5/0044 , H04W72/1268
Abstract: This application provides a method for transmitting a PPDU and a communication apparatus. An AP sends a trigger frame to trigger at least one STA to transmit an uplink PPDU. After receiving the trigger frame, the at least one STA transmits respective uplink PPDUs. The uplink PPDU includes a data field and LTFs. The data field is carried on a distributed RU. The LTFs are carried on all subcarriers in a first transmission bandwidth. The first transmission bandwidth is a bandwidth occupied by a distributed RU that is allocated by the AP to the at least one STA for transmitting the uplink PPDU. Alternatively, the LTFs are carried on all subcarriers of a plurality of continuous RUs corresponding to the distributed RU.
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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
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.
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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
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.
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