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1.发明申请公开(公告)号：US20220263640A1
公开(公告)日：2022-08-18
申请号：US17668207
申请日：2022-02-09
发明人： Chenchen LIU , Huangxun CHEN , Xiao HAN , Rui DU , Meihong ZHANG , Yunbo LI , Qian ZHANG , Jia HE
IPC分类号： H04L5/00
摘要： A method includes, in accordance with some implementations, sending, a measurement station, a trigger frame to a signal source station, where the trigger frame carries pilot format information, and the pilot format information is used to indicate a sending time point of a signal frame triggered by the trigger frame, a quantity of times for sending the signal frame, and a transmission mode of pilot information in the signal frame. The measurement station receives an illumination frame from the signal source station, where the illumination frame is the signal frame triggered by the trigger frame. The measurement station analyzes pilot information in the illumination frame to obtain sensing information in the illumination frame, where the sensing information is used to indicate physical information of an object surrounding the signal source station and the measurement station.
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公开(公告)号：US20220308194A1
公开(公告)日：2022-09-29
申请号：US17837843
申请日：2022-06-10
发明人： Meihong ZHANG , Xiao HAN , Rui DU , Chenchen LIU
摘要： This application provides example object locating methods and apparatuses. One example method includes performing, by a first device, pulse measurement on a target object with assistance of a second device, where the pulse measurement is performed on the target object by using two types of pulse signals, and pulse repetition frequencies of the two types of pulse signals are different. The first device can then locate the target object based on a pulse measurement result of the pulse measurement.
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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
发明人： Rui DU , Huangxun CHEN , Yuchen GUO , Chenchen LIU , Meihong ZHANG , Qian ZHANG , Xiao HAN
IPC分类号： H04W24/02 , H04B17/309
摘要： 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
发明人： Chenchen LIU , Xiao HAN , Rui DU , Meihong ZHANG , Jian YU
摘要： 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：US20230016889A1
公开(公告)日：2023-01-19
申请号：US17951519
申请日：2022-09-23
发明人： Meihong ZHANG , Xiangwen GUO , Xiao HAN , Jiahui ZHANG , Rui DU , Chenchen LIU , Yan LONG , Yingxiang SUN
摘要： 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
发明人： Chenchen LIU , Baojian ZHOU , Xiao HAN , Rui DU , Meihong ZHANG
摘要： 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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公开(公告)号：US20220286337A1
公开(公告)日：2022-09-08
申请号：US17745344
申请日：2022-05-16
发明人： Dandan LIANG , Ming GAN , Yang YANG , Xianfu LEI , Chenchen LIU , Zhengchun ZHOU , Wei LIN , Xiaohu TANG
摘要： 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.
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公开(公告)号：US20230018459A1
公开(公告)日：2023-01-19
申请号：US17949453
申请日：2022-09-21
发明人： Rui DU , Xiao HAN , Chenchen LIU , Meihong ZHANG , Yingxiang SUN , Danny Kai Pin TAN
IPC分类号： H04W74/08 , H04B7/0452
摘要： A wireless local area network sensing method. The method includes: in a process in which a second network device performs high frequency MIMO channel access, a first network device sends indication information to a plurality of second network devices, where the indication information indicates the plurality of second network devices to send uplink sensing signals; and the first network device receives the uplink sensing signals from the second network devices and performs uplink sensing based on the uplink sensing signals.
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公开(公告)号：US20220345188A1
公开(公告)日：2022-10-27
申请号：US17859093
申请日：2022-07-07
发明人： Chenchen LIU , Meihong ZHANG , Wei WANG , Shuyu SHI , Xiao HAN , Rui DU , Jian YU , Yunbo LI , Yingxiang SUN
摘要： A method includes: A first node sends a threshold and a first packet to a second node. Correspondingly, the second node receives the threshold and the first packet from the first node. Then, the second node determines first channel state information CSI based on the first packet. If a change amount of the first CSI relative to preset CSI exceeds the threshold, the second node sends a second packet to the first node. If the change amount of the first CSI relative to the preset CSI does not exceed the threshold, the second node does not need to send the second packet to the first node. The method is applied to a radio sensing process.
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公开(公告)号：US20220159426A1
公开(公告)日：2022-05-19
申请号：US17665809
申请日：2022-02-07
发明人： Rui DU , Jian YU , Xiao HAN , Chenchen LIU
摘要： This application provides a sensing method and a communication apparatus. A first device indicates at least one second device to perform a sensing task by using a midamble, and indicates a sensing parameter required by the at least one second device to perform the sensing task. This may enable the at least one second device to perform the sensing task by using the midamble sent by the first device, to implement sensing by using the midamble.
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