Huawei Technologies Co., Limited

Shenzhen Mindray Bio-medical Electronics Co., Ltd.

Southeast University

Chun Pan

Doron Ezri

Yungui Wang

Xingfeng Jiang

Jun Chen

Avi Weitzman

Xiaoyong Zhou

Xiangyu He

Jinglei Liu

Liangliang Chen

Jie Fu

Alexander Kobzantsev

Zixiang Ma

Zhijian He

Yi Yang

Haibo Qiu

Ling Liu

Congying Wan

Jianfeng Xie

Songqiao Liu

Yongsheng Yan

Shuaishuai Zhang

Le Niu

Oren Hencinski

Yongqian Xu

Jianlei Cui

Weiwei Gu

Ohad Klausner

Yotam Katzman

Songping Lang

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.

Positioning method and apparatus, WLAN device, and storage medium

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.

Time calibration method and related apparatus

The disclosure provides a respirator, which includes a ventilation device, configured for providing ventilation airflow to a patient. The respirator further includes a first monitor, configured for monitoring a pressure or a flow velocity with which the ventilation device ventilates the patient, and a second monitor, configured for measuring a pressure change that reflects a self-respiratory effort of the patient. The respirator also includes a processor, configured for identifying an inspiratory trigger moment or an expiratory trigger moment of the patient according to the pressure change that reflects the self-respiratory effort of the patient.

Respirator and ventilation control method therefor

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.

Low complexity angle of arrival (AOA) array calibration

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.

Radio station for client localization in multipath indoor environment

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.

Position relationship determining method and apparatus

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.

Angle of arrival estimation method and device

Growing community of inventors

Nanjing, China

Chun Pan