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公开(公告)号：US12022449B2
公开(公告)日：2024-06-25
申请号：US17192121
申请日：2021-03-04
发明人： Yanchun Li
IPC分类号： H04W72/0453
CPC分类号： H04W72/0453
摘要： A data transmission method includes that a first device sends a physical layer protocol data unit (PPDU) to a second device. A bandwidth of channels occupied by the PPDU is N×20 megahertz (MHz), the PPDU includes a preamble sequence having a backward compatibility function and a first extremely high throughput long training field (EHT-LTF), the first EHT-LTF is carried in a first subcarrier set, the first subcarrier set includes one or more subcarriers other than a subcarrier that carries the preamble sequence having the backward compatibility function and a direct current subcarrier in the N 20 MHz channels, and N is a positive integer greater than or equal to 2. The second device receives the PPDU sent by the first device.
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公开(公告)号：US11350359B2
公开(公告)日：2022-05-31
申请号：US16862434
申请日：2020-04-29
发明人： Yanchun Li , Zhou Lan , Yunbo Li
摘要： This application provides a data transmission method. When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
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公开(公告)号：US11116003B2
公开(公告)日：2021-09-07
申请号：US16103470
申请日：2018-08-14
发明人： Yanchun Li , Yunbo Li
摘要： A communication method disclosed in the present disclosure includes: receiving, by an access point, a sending request sent by a first station, and sending clear to send information to the first station; when the access point receives feedback information sent by the first station, allocating, by the access point, a channel to the first station, and allocating a channel to a second station based on remaining bandwidth; generating a first trigger frame, and sending the first trigger frame to the first station and the second station; and receiving uplink data sent by the first station and the second station. The present disclosure further provides an access point and a station that can implement the communication method. According to the present disclosure, bandwidth utilization of the access point and data transmission efficiency can be improved.
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公开(公告)号：US20210195591A1
公开(公告)日：2021-06-24
申请号：US17192121
申请日：2021-03-04
发明人： Yanchun Li
IPC分类号： H04W72/04
摘要： A data transmission method includes that a first device sends a physical layer protocol data unit (PPDU) to a second device. A bandwidth of channels occupied by the PPDU is N×20 megahertz (MHz), the PPDU includes a preamble sequence having a backward compatibility function and a first extremely high throughput long training field (EHT-LTF), the first EHT-LTF is carried in a first subcarrier set, the first subcarrier set includes one or more subcarriers other than a subcarrier that carries the preamble sequence having the backward compatibility function and a direct current subcarrier in the N 20 MHz channels, and N is a positive integer greater than or equal to 2. The second device receives the PPDU sent by the first device.
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5.发明申请公开(公告)号：US20200343960A1
公开(公告)日：2020-10-29
申请号：US16925989
申请日：2020-07-10
发明人： Yanchun Li
IPC分类号： H04B7/06 , H04B7/0417 , H04L1/16 , H04B17/336 , H04W24/10 , H04W72/04
摘要： A channel state information transmission method, where a responder receives a channel measurement signal sent by an initiator by using one or more transmit antennas, and the responder sends a feedback frame to the initiator based on the channel measurement signal. The feedback frame includes information used to indicate a transmit antenna subset of the initiator and one or more channel state information blocks of a channel between the corresponding transmit antenna subset of the initiator and the responder, where the transmit antenna subset is determined from one or more transmit antennas by using which a channel measurement signal is sent.
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公开(公告)号：US10708029B2
公开(公告)日：2020-07-07
申请号：US16055850
申请日：2018-08-06
发明人： Yunbo Li , Yanchun Li , Le Liu , Jiayin Zhang , Ming Gan
摘要： The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.
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公开(公告)号：US10536988B2
公开(公告)日：2020-01-14
申请号：US15822815
申请日：2017-11-27
发明人： Yunbo Li , Yanchun Li , Yi Luo
摘要： A channel access process method in a wireless local area network is provided. The method includes: generating, by a station, a backoff counter value; then performing, by the station, a backoff operation after receiving a first trigger frame, where the backoff operation includes: deducting, from the backoff counter value, a quantity N of subchannels for random access, to obtain a new backoff counter value; and when the new backoff counter value is 0 or a negative number, randomly selecting, by the station, one subchannel from the subchannels for random access, and then accessing the subchannel to send an uplink frame. The present application further provides a corresponding channel access apparatus. Applying the method and the apparatus of the embodiments of the present application improves system access efficiency and avoids a waste of system resources.
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8.发明申请公开(公告)号：US20170290076A1
公开(公告)日：2017-10-05
申请号：US15627048
申请日：2017-06-19
发明人： Yuchen Guo , Xun Yang , Peter Loc , Meilu Lin , Yanchun Li
摘要： A method for establishing a communication connection between a station (STA) and an access point (AP). The method includes: receiving, by the AP, request frames sent by N STAs to the AP, and after the AP receives the request frames sent by the N STAs, contending for a channel by the AP and sending one response frame to M STAs, where the response frame includes identifiers of the M STAs and M responses to the M STAs. Each of the identifiers of the M STAs corresponds to one of the M responses, wherein 2≦M≦N.
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9.发明公开公开(公告)号：US20240007827A1
公开(公告)日：2024-01-04
申请号：US18339751
申请日：2023-06-22
发明人： George Arvanitakis , Nikolaos Liakopoulos , Dimitrios TSILIMANTOS , Jean-Claude Belfiore , Yanchun Li
CPC分类号： H04W4/029 , H04W16/225
摘要： An apparatus and method are provided for estimating a refined location in dependence on a plurality of measurements of one or more communication channels. The apparatus comprises one or more processors configured to: compress each channel measurement; process the compressed channel measurements using a neural network to form a plurality of intermediate location estimates; and process the intermediate location estimates to form the refined location.
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10.发明公开公开(公告)号：US20230421226A1
公开(公告)日：2023-12-28
申请号：US18338947
申请日：2023-06-21
发明人： Yanchun Li
IPC分类号： H04B7/06 , H04B17/336 , H04B7/0417 , H04L1/1607 , H04W24/10 , H04W72/0453
CPC分类号： H04B7/0626 , H04B17/336 , H04B7/0417 , H04B7/0634 , H04L1/1614 , H04W24/10 , H04W72/0453
摘要： A channel state information transmission method, where a responder receives a channel measurement signal sent by an initiator by using one or more transmit antennas, and the responder sends a feedback frame to the initiator based on the channel measurement signal. The feedback frame includes information used to indicate a transmit antenna subset of the initiator and one or more channel state information blocks of a channel between the corresponding transmit antenna subset of the initiator and the responder, where the transmit antenna subset is determined from one or more transmit antennas by using which a channel measurement signal is sent.
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