公开(公告)号：US20180262866A1

公开(公告)日：2018-09-13

申请号：US15621914

申请日：2017-06-13

Applicant: QUALCOMM Incorporated

Inventor： Anssi Haverinen ,  Xiaoxin Zhang ,  Ning Zhang ,  Sandeep Kesireddy

IPC: H04W4/00 ,  H04B17/20 ,  H04B7/08

CPC classification number: H04W4/80 ,  H04B7/0822 ,  H04B17/12 ,  H04B17/20 ,  H04L67/12 ,  H04W4/02 ,  H04W84/12 ,  H04W84/18

Abstract: This disclosure provides systems, methods and apparatuses for detecting motion based on wireless signals. In some implementations, a receiving device may receive, from a transmitting device, a packet containing a sequence. In some aspects, the packet may be a Bluetooth packet, and the sequence may be contained in a supplemental information appended to the Bluetooth packet. The receiving device may estimate angle information of the packet based on the sequence, and determine a difference between the estimated angle information and a reference angle. The angle information may be an angle of arrival (AoA) or an angle of departure (AoD) of the packet. The receiving device may detect motion based on the determined difference.

公开(公告)号：US10064077B2

公开(公告)日：2018-08-28

申请号：US15875807

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W24/06 ,  H04W72/04 ,  G01S13/74 ,  G01S5/12 ,  H04L12/26 ,  H04L1/16

CPC classification number: H04W24/06 ,  G01S5/12 ,  G01S13/74 ,  H04L1/16 ,  H04L43/0864 ,  H04W72/0406 ,  H04W72/0446

Abstract: Apparatuses and methods are disclosed for performing ranging operations between a first device and a second device. The first device may receive, from the second device, a fine timing measurement (FTM) request frame including a request to estimate angle information for a number of frames exchanged with the second device and indicating a level of accuracy for the estimated angle information. The first device may transmit a first FTM frame to the second device, may receive an acknowledgement (ACK) frame from the second device, and may transmit, to the second device, a second FTM frame including angle information of the first FTM frame and timing information of one or more of the exchanged frames.

公开(公告)号：US10057832B2

公开(公告)日：2018-08-21

申请号：US15048003

申请日：2016-02-19

Applicant: QUALCOMM Incorporated

Inventor： Ning Zhang ,  Xiaoxin Zhang ,  Carlos Horacio Aldana ,  Youhan Kim

IPC: H04J3/06 ,  H04W40/02 ,  H04L5/00 ,  H04L27/26 ,  H04W64/00 ,  H04W84/12

CPC classification number: H04W40/02 ,  H04L5/0055 ,  H04L27/2601 ,  H04W64/00 ,  H04W84/12

Abstract: Apparatuses and methods are disclosed that may perform ranging operations between a first device and a second device. The second device transmits an FTM request frame indicating a number of supported non-legacy ACK frame formats, and receives a first FTM frame indicating capabilities of the first device to receive each of the non-legacy ACK frame formats supported by the second device. The second device selects one of the non-legacy ACK frame formats or a legacy ACK frame format based, at least in part, on the indicated capabilities of the first device, and then transmits ACK frames using the selected frame format during the ranging operation.

公开(公告)号：US20180227714A1

公开(公告)日：2018-08-09

申请号：US15786548

申请日：2017-10-17

Applicant: QUALCOMM Incorporated

Inventor： Youngsin Lee ,  Xiaoxin Zhang

IPC: H04W4/02 ,  G01S5/02

CPC classification number: H04W4/027 ,  G01S5/0273 ,  H04L67/12 ,  H04W4/70 ,  H04W84/12

Abstract: Method, apparatus and systems for detecting motion of an object based on a received wireless signal include comparing a received wireless signal to an adaptive noise immunity threshold, if the received wireless signal satisfies the adaptive noise immunity threshold. The detecting motion is based at least in part on a comparison between a determined multipath amount of the received wireless signal and a reference multipath amount, and further by adjusting the adaptive noise immunity threshold from a first level to a second level prior to the comparing of the received wireless signal to the noise immunity threshold, where the second level is higher than the first level.

公开(公告)号：US20170006422A1

公开(公告)日：2017-01-05

申请号：US14881761

申请日：2015-10-13

Applicant: QUALCOMM Incorporated

Inventor： Beomsup Kim ,  Ning Zhang ,  Xiaoxin Zhang

IPC: H04W4/02 ,  G01S11/16 ,  H04B7/06

CPC classification number: H04W4/023 ,  G01S11/16 ,  G01S13/767 ,  H04B7/0602 ,  H04W64/00 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. An example method includes receiving, by a first wireless communication device having a plurality of antennas disposed at a localized position, a plurality of fine timing management (FTM) messages from a second wireless communication device. The example method includes transmitting, by the first wireless communication device, a plurality of FTM responses to the second wireless communication device. Each of the plurality of FTM responses may be transmitted using a different antenna of the first wireless communication device. The example method also includes estimating a range between the first wireless communication device and the second wireless communication device based at least in part on the plurality of FTM messages.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 一种示例性方法包括由第二无线通信设备接收多个精确定时管理（FTM）消息的第一无线通信设备，其具有设置在本地化位置的多个天线。 该示例方法包括由第一无线通信设备向第二无线通信设备发送多个FTM响应。 可以使用第一无线通信设备的不同天线来发送多个FTM响应中的每一个。 该示例性方法还包括至少部分地基于多个FTM消息来估计第一无线通信设备和第二无线通信设备之间的范围。

公开(公告)号：US20140335891A1

公开(公告)日：2014-11-13

申请号：US14272844

申请日：2014-05-08

Applicant: QUALCOMM INCORPORATED

Inventor： Xiaoxin Zhang ,  Carlos Horacio Aldana ,  Sandip Homchaudhuri ,  James Simon Cho

IPC: H04W64/00

CPC classification number: H04W64/003 ,  G01S5/0205 ,  H04W64/00

Abstract: This disclosure includes systems and methods for determining the location of each of a plurality of STAs of a WLAN where an AP measures the round-trip time (RTT) and the angle of arrival (AOA) to each STA from implicit packet exchange, such as data frame and ACK frame. The AP may then report the RTT and AOA measurements to each STA using a dedicated beacon information element (IE) which multicasts RTT and AOA measurements to the STAs. By employing an additional parameter, namely, angle of arrival AOA, a single AP may compute the two-dimensional location of each associated STA. Further, another beacon IE may multicast mapping of the AIDs to MAC addresses so that the associated STAs can understand such mapping for STAs in a network so that one STA may know the location of other STAs. Encryption may be employed to achieve privacy.

Abstract translation: 本公开包括用于确定WLAN的多个STA中的每一个的位置的系统和方法，其中AP从隐式分组交换测量到每个STA的往返时间（RTT）和到达角（AOA），例如 数据帧和ACK帧。 然后，AP可以使用将RTT和AOA测量多播到STA的专用信标信息元素（IE）向每个STA报告RTT和AOA测量。 通过采用附加参数，即到达角AOA，单个AP可以计算每个相关STA的二维位置。 此外，另一个信标IE可以将AID多播到MAC地址，使得相关联的STA可以理解网络中的STA的这种映射，使得一个STA可以知道其他STA的位置。 可以采用加密来实现隐私。

公开(公告)号：US20140269400A1

公开(公告)日：2014-09-18

申请号：US13826116

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio ALDANA ,  Vinay Sridhara ,  Sven Fischer ,  Hui Chao ,  Sandip Homchaudhuri ,  James Simon Cho ,  Xiaoxin Zhang

IPC: H04W24/08

CPC classification number: H04W64/00 ,  G01S5/0081 ,  G01S5/0236 ,  G01S5/0242 ,  H04W48/12

Abstract: A method and apparatus for broadcasting short interframe space information to aid in determining a round trip time are provided. The round trip time is used as an aid in locating nodes within a WiFi or WLAN network. The method begins with capturing a time of transmission of a frame by a transmitting station. The receiving station then captures the time of arrival of the frame just sent by the transmitting station. The receiving station replies with a received frame message and the time of departure is captured. The transmitting station then captures the time of arrival of the received frame message. The captured arrival and departure times of the frame and the received frame message allow the round trip time to be computed. The RTT may then be included as part of a network message.

Abstract translation: 提供了一种用于广播短帧间空间信息以帮助确定往返时间的方法和装置。 往返时间用于帮助定位WiFi或WLAN网络中的节点。 该方法开始于通过发送站捕获帧的传输时间。 接收站然后捕获发送站刚刚发送的帧的到达时间。 接收站用接收到的帧消息进行回复，并且捕获出发的时间。 然后，发送站捕获所接收的帧消息的到达时间。 所捕获的到达和离开时间帧和接收到的帧消息允许计算往返时间。 然后可以将RTT包括为网络消息的一部分。

公开(公告)号：US20140235270A1

公开(公告)日：2014-08-21

申请号：US14345941

申请日：2012-09-19

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Ning Zhang

IPC: H04W4/02

CPC classification number: H04W4/02 ,  G01S5/021 ,  G01S5/14 ,  G01S13/876

Abstract: A TOA positioning system can be implemented that employs a calculated initial location of a wireless network device. For each of a plurality of reference wireless network devices, a distance between the wireless network device and the reference wireless network device is determined based, at least in part, on a round trip transit time between the wireless network device and the reference wireless network device. An initial location of the wireless network device can be calculated based, at least in part, on a location of each of the plurality of reference wireless network devices. A location of the wireless network device can be estimated based, at least in part, on the calculated initial location, the distance to each of the reference wireless network devices, and an initial distance calibration constant.

Abstract translation: 可以实现采用计算的无线网络设备的初始位置的TOA定位系统。 对于多个参考无线网络设备中的每一个，无线网络设备和参考无线网络设备之间的距离至少部分地基于无线网络设备和参考无线网络设备之间的往返传送时间来确定 。 可以至少部分地基于多个参考无线网络设备中的每一个的位置来计算无线网络设备的初始位置。 可以至少部分地基于所计算的初始位置，到每个参考无线网络设备的距离以及初始距离校准常数来估计无线网络设备的位置。

公开(公告)号：US12228632B2

公开(公告)日：2025-02-18

申请号：US18044952

申请日：2021-09-21

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Parthiban Ellappan ,  Rishabh Raj

IPC: G01S13/04 ,  B60W40/08 ,  B60W50/14 ,  G01S13/50

Abstract: Embodiments described herein address these and other issues by providing radio frequency (RF) sensing to determine the status of a driver or other occupant of the vehicle. RF sensing may be provided by existing radios of a vehicle, such a Wi-Fi transceiver, and may therefore provide RF sensing functionality to a vehicle with little added cost. RF sensing can be leveraged to implement safety features such as detecting an unattended child or pet in a vehicle, detecting driver alertness, and the like.

公开(公告)号：US12114180B2

公开(公告)日：2024-10-08

申请号：US17648789

申请日：2022-01-24

Applicant: QUALCOMM Incorporated

Inventor： Danlu Zhang ,  Brian Momeyer ,  Brian Clarke Banister ,  Udara Fernando ,  Eyosias Yoseph Imana ,  Raghu Narayan Challa ,  Jiaying Pan ,  Xiaoxin Zhang ,  Bala Ramasamy

IPC: H04W16/28 ,  H04W52/36

CPC classification number: H04W16/28 ,  H04W52/367

Abstract: A method for wireless communication performed by a head-mounted user equipment (UE), the method includes determining a first spatial relationship between an eye of a human user of the head-mounted UE and physical transmission and reception ports of the head-mounted UE; based on the first spatial relationship, determining a second spatial relationship between a plurality of radio frequency (RF) beam directions of the head-mounted UE and the eye of the human user; selecting a first RF beam direction from among the plurality of RF beam directions based at least in part on the second spatial relationship with respect to the first RF beam direction; and transmitting or receiving RF radiation using a first RF beam conforming to the first RF beam direction.