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公开(公告)号：US20220224424A1
公开(公告)日：2022-07-14
申请号：US17657645
申请日：2022-04-01
发明人： Alexander Kobzantsev , Doron Erzi , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
IPC分类号： H04B17/12 , H04B17/21 , H04B7/06 , H04B7/0413
摘要： A Multiple-Input Multiple-Output (MIMO) device comprises an array of multiple antennas and a circuitry configured to receive, using the array of multiple antennas, a plurality of calibration signals from a plurality of proximate wireless MIMO devices, calibrate the wireless MIMO device based on the received calibration signals and based on known directions from the wireless MIMO device to each of the proximate wireless MIMO devices, and drive the array of multiple antennas to emit a beam-formed calibration signal to each of the proximate wireless devices in order to enable each of the proximate wireless MIMO devices to calibrate itself.
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公开(公告)号：US20230171667A1
公开(公告)日：2023-06-01
申请号：US18070057
申请日：2022-11-28
发明人： Shuaishuai Zhang , Baokun Ding , Chun Pan , Xiangyu He , Rihai Wu , Liangliang Chen
CPC分类号： H04W36/32 , H04W36/0011
摘要： A terminal roaming method, an apparatus, and a wireless local area network are disclosed, and belong to the field of WLAN technologies. A session parameter used when a terminal performs data exchange with an original associated AP is migrated to a roaming target AP. After the terminal is associated with the roaming target AP, the roaming target AP can continue data exchange with the terminal based on the migrated session parameter, and the terminal can also continue data exchange with the roaming target AP based on the session parameter used when the terminal performs data exchange with the original associated AP. The terminal and the roaming target AP do not need to perform session negotiation again, to shorten a data service recovery time required after a roaming handover of the terminal, and reduce a service transmission delay. This improves smoothness of roaming handover of the terminal.
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公开(公告)号：US20220361207A1
公开(公告)日：2022-11-10
申请号：US17870430
申请日：2022-07-21
发明人： Chun Pan
摘要： A positioning method and a WLAN device in the field of positioning technologies includes obtaining by the WLAN device an uplink scheduling parameter sent by another WLAN device to a plurality of to-be-positioned WLAN devices, where the uplink scheduling parameter indicates radio resources allocated to the plurality of to-be-positioned WLAN devices; receiving uplink signals by the WLAN device; and measuring respective positioning data of the plurality of to-be-positioned WLAN devices by the WLAN device based on the radio resources of the plurality of to-be-positioned WLAN devices and the received uplink signals.
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公开(公告)号：US20220196778A1
公开(公告)日：2022-06-23
申请号：US17651856
申请日：2022-02-21
发明人： Alexander Kobzantsev , Doron Ezri , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
摘要： A radio station, in particular an access point, for client localization in a multipath indoor environment is disclosed. The radio station comprises: a circular antenna array comprising uniform circularly arranged antenna elements; and a processor configured to: transform first input data from the circular antenna array into second input data using a transform that transforms the first steering vector of the circular antenna array into a second steering vector of a virtual linear antenna array; and transform the second input data into third input data by using a transform that transforms the second steering vector of the virtual linear antenna array into a third steering vector of a second virtual linear antenna array, comprising a larger number of antenna elements than the virtual linear antenna array; and determine an angle of arrival based on the third input data.
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公开(公告)号：US20230371013A1
公开(公告)日：2023-11-16
申请号：US18315270
申请日：2023-05-10
发明人： Shuaishuai Zhang , Chun Pan , Weixi Chen , Xingfeng Jiang , Rihai Wu , Hongyi Tan
IPC分类号： H04W72/0453 , H04W72/0446 , H04W24/10 , H04B17/318
CPC分类号： H04W72/0453 , H04W72/0446 , H04W24/10 , H04B17/328 , H04W84/12
摘要： A resource allocation method, a device, and a storage medium are disclosed. The method includes: A network device obtains a packet concurrency status of a plurality of wireless local area network WLAN devices, where the plurality of WLAN devices correspond to a same channel. The network device allocates channel resource slices to the plurality of WLAN devices from a channel resource in a first time period based on the packet concurrency status.
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公开(公告)号：US11166254B2
公开(公告)日：2021-11-02
申请号：US16698026
申请日：2019-11-27
发明人： Chun Pan , Weiwei Gu , Jianlei Cui , Yungui Wang
摘要： A position relationship determining method and apparatus includes determining a position relationship between a first wireless local area network (WLAN) device and a second WLAN device based on exceeded-bandwidth wireless channel characteristic data, where the exceeded-bandwidth wireless channel characteristic data is a result obtained after combining wireless channel characteristic data corresponding to all WLAN channels in a channel set, the channel set includes at least two WLAN channels, all the WLAN channels in the channel set belong to a single WLAN frequency band, a total bandwidth occupied by all the WLAN channels in the channel set is greater than 160 megahertz and is greater than a maximum single channel bandwidth supported by the single WLAN frequency band.
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7.发明申请公开(公告)号：US20190320405A1
公开(公告)日：2019-10-17
申请号：US16452036
申请日：2019-06-25
发明人： Chun Pan , Songping Lang , Sheng Liu
摘要： In a method for determining a candidate line of sight path, a wireless local area network device receives a signal, where the signal includes radio signals sent by a to-be-identified terminal through a plurality of paths. The radio signal includes a first training sequence, and the signal includes superposition of a plurality of first training sequences transmitted through the plurality of paths. The wireless local area network device matches the signal and a second training sequence to obtain time points at which the plurality of first training sequences transmitted through the plurality of paths are received. The wireless local area network device determines a path of an earliest-received radio signal as a candidate line of sight path.
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公开(公告)号：US11754658B2
公开(公告)日：2023-09-12
申请号：US17651856
申请日：2022-02-21
发明人： Alexander Kobzantsev , Doron Ezri , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
摘要： A radio station, in particular an access point, for client localization in a multipath indoor environment is disclosed. The radio station comprises: a circular antenna array comprising uniform circularly arranged antenna elements; and a processor configured to: transform first input data from the circular antenna array into second input data using a transform that transforms the first steering vector of the circular antenna array into a second steering vector of a virtual linear antenna array; and transform the second input data into third input data by using a transform that transforms the second steering vector of the virtual linear antenna array into a third steering vector of a second virtual linear antenna array, comprising a larger number of antenna elements than the virtual linear antenna array; and determine an angle of arrival based on the third input data.
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公开(公告)号：US20230111449A1
公开(公告)日：2023-04-13
申请号：US17963348
申请日：2022-10-11
发明人： Le Niu , Zixiang Ma , Shuaishuai Zhang , Chun Pan
IPC分类号： H04W56/00
摘要： A time calibration method includes a first station receives a first frame from a second station; the first station stores a receiving moment of the first frame; the first station receives a second frame from the second station, where the second frame includes a sending moment at which the second station sends the first frame; and the first station obtains a clock offset between a first clock of the first station and a second clock of the second station based on the receiving moment of the first frame and the sending moment of the first frame.
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公开(公告)号：US10917870B2
公开(公告)日：2021-02-09
申请号：US16547290
申请日：2019-08-21
发明人： Chun Pan , Zhijian He , Yongqian Xu , Yungui Wang
摘要： An angle of arrival estimation method and device, where a first device: collects a first signal from a second device using a reference antenna and a first antenna group; determines first channel state information (CSI); collects a second signal from the second device using the reference antenna and a second antenna group; determines second CSI; determines a phase difference vector between the first signal and the second signal based on a vector corresponding to the reference antenna in the first CSI and a vector corresponding to the reference antenna in the second CSI; compensates for the second CSI using the phase difference vector; and estimates an angle of arrival of the second device based on the first CSI and compensated second CSI.
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