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    OUTLIER DETECTION FOR SATELLITE POSITIONING SYSTEM USING VISUAL INERTIAL ODOMETRY
    1.
    发明申请
    OUTLIER DETECTION FOR SATELLITE POSITIONING SYSTEM USING VISUAL INERTIAL ODOMETRY 审中-公开

    公开(公告)号：US20170219716A1

    公开(公告)日：2017-08-03

    申请号：US15014009

    申请日：2016-02-03

    Applicant: QUALCOMM Incorporated

    Inventor： Urs NIESEN ,  Venkatesan NALLAMPATTI EKAMBARAM ,  Lionel Jacques GARIN ,  Jubin JOSE ,  Xinzhou WU

    IPC: G01S19/52 ,  G01S19/42

    CPC classification number: G01S19/47 ,  G01C21/165 ,  G01S5/163 ,  G01S19/22 ,  G01S19/426

    Abstract: A method of determining a position of a mobile platform includes obtaining a plurality of pseudorange measurements from multiple time epochs of a satellite navigation system (SPS) and obtaining a plurality of visual-inertial odometry (VIO) velocity measurements from a VIO system. Each time epoch of the SPS includes at least one pseudorange measurement corresponding to a first satellite and at least one pseudorange measurement corresponding to a second satellite. The method also includes combining the plurality of pseudorange measurements with the plurality of VIO velocity measurements to identify one or more outlier pseudorange measurements in the plurality of pseudorange measurements. The one or more outlier pseudorange measurements are then discarded from the plurality of pseudorange measurements to generate a remaining plurality of pseudorange measurements. The position of the mobile platform is then computed based on the remaining plurality of pseudorange measurements and the plurality of VIO velocity measurements.

    DISTRIBUTION OF CLOCK DRIFT INFORMATION AMONG WIRELESS DEVICES
    3.
    发明申请
    DISTRIBUTION OF CLOCK DRIFT INFORMATION AMONG WIRELESS DEVICES 审中-公开
    在无线设备上分发时钟信息

    公开(公告)号：US20160277888A1

    公开(公告)日：2016-09-22

    申请号：US14751480

    申请日：2015-06-26

    Applicant: QUALCOMM Incorporated

    Inventor： Urs NIESEN ,  Venkatesan NALLAMPATTI EKAMBARAM ,  Jubin JOSE ,  Xinzhou WU

    IPC: H04W4/02 ,  H04L12/26

    CPC classification number: H04W4/023 ,  G01S13/765 ,  H04L43/0852 ,  H04W56/002

    Abstract: Clock drift for range estimation between a first wireless device and a second wireless device is determine before such estimation, while acceptable communication between the first device and the second device is unavailable. While acceptable communication is unavailable, a relative clock drift Δ01 between a relative wireless device and the first device is obtained by the second device; a relative clock drift Δ20 between the second device and the relative wireless device is determined; and a relative clock drift Δ21 between the second device and the first device is estimated based on the relative clock drift Δ01 and the relative clock drift Δ20. Once acceptable communication is available, a distance between the first device and the second device is estimated based on the relative clock drift Δ21.

    Abstract translation: 在这种估计之前确定第一无线设备和第二无线设备之间的距离估计的时钟漂移，而第一设备和第二设备之间可接受的通信是不可用的。 虽然可接受的通信不可用，但通过第二设备获得相对无线设备与第一设备之间的相对时钟漂移Δ01; 确定第二装置和相对无线装置之间的相对时钟漂移Δ20; 并且基于相对时钟漂移Δ01和相对时钟漂移Δ20来估计第二装置和第一装置之间的相对时钟漂移Δ21。 一旦可接受的通信可用，基于相对时钟漂移Δ21来估计第一设备和第二设备之间的距离。

    SPARSITY AND CONTINUITY-BASED CHANNEL STITCHING TECHNIQUES FOR ADJACENT TRANSMISSIONS
    4.
    发明申请
    SPARSITY AND CONTINUITY-BASED CHANNEL STITCHING TECHNIQUES FOR ADJACENT TRANSMISSIONS 审中-公开
    用于相邻传输的基于空间和连续性的通道缝合技术

    公开(公告)号：US20160227516A1

    公开(公告)日：2016-08-04

    申请号：US15012731

    申请日：2016-02-01

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatesan NALLAMPATTI EKAMBARAM ,  Jubin JOSE ,  Xinzhou WU ,  Thomas Joseph RICHARDSON

    IPC: H04W72/04

    CPC classification number: H04W72/04 ,  H04L5/001 ,  H04L27/2659 ,  H04L27/2671 ,  H04L27/2695

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The device may receive a signal on each of N channels from another device. The N channels may include a first channel. The device may determine a frequency response of each of the N channels based on the received signals. The device may transform, from a frequency domain to a time domain, the N frequency responses in order to generate a transformed signal. The frequency response of an nth channel of the N channels may be adjusted by a channel offset of the nth channel with respect to the first channel for n being each integer from 2 to N. The device may then estimate the channel offset for each of the N channels other than the first channel based on the transformed signal.

    Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 设备可以从另一个设备接收N个信道中的每一个信号。 N个信道可以包括第一信道。 该设备可以基于接收到的信号来确定每个N个信道的频率响应。 该装置可以从频域到时域转换N个频率响应，以便产生经变换的信号。 可以通过第n个信道相对于第一信道的信道偏移来调整N个信道的第n个信道的频率响应，n的每个整数从2到N。然后，设备可以估计每个信道的信道偏移 基于变换信号的第一通道以外的N个通道。

    LOCATION AND RANGE DETERMINATION USING BROADCAST MESSAGES
    6.
    发明申请
    LOCATION AND RANGE DETERMINATION USING BROADCAST MESSAGES 审中-公开
    使用广播信息的位置和范围确定

    公开(公告)号：US20160277197A1

    公开(公告)日：2016-09-22

    申请号：US14848160

    申请日：2015-09-08

    Applicant: QUALCOMM Incorporated

    Inventor： Jubin JOSE ,  Urs NIESEN ,  Venkatesan NALLAMPATTI EKAMBARAM ,  Xinzhou WU

    IPC: H04L12/18 ,  H04W64/00

    CPC classification number: H04L12/18 ,  G01S5/0063 ,  G01S5/02 ,  H04W64/00

    Abstract: Disclosed are implementations that include a method, at a mobile device, including receiving multiple broadcast messages transmitted by multiple stationary wireless devices, and obtaining first information relating to each of the multiple broadcast messages, with at least some of the first information being included in the multiple broadcast messages, and second information relating to at least one earlier broadcast communication received by at least one of the multiple stationary wireless devices, prior to transmission of the at least one of the multiple broadcast messages, from at least one other of the multiple stationary wireless devices, with the second information included in the at least one of the multiple broadcast messages. The method also include determining location information for the mobile device based on the first information, the second information, and known positions of at least some of the multiple stationary wireless devices.

    Abstract translation: 公开了包括在移动设备处的方法的实现方式，包括接收由多个固定无线设备发送的多个广播消息，以及获得与多个广播消息中的每一个相关的第一信息，其中至少一些第一信息被包括在 多个广播消息，以及与多个固定无线设备中的至少一个所接收的至少一个较早的广播通信相关的第二信息，在多个广播消息中的至少一个广播消息之间从多个静止无线设备中的至少一个传输 无线设备，其中第二信息包括在多个广播消息中的至少一个中。 该方法还包括基于第一信息，第二信息和多个固定无线设备中的至少一些的已知位置来确定移动设备的位置信息。

    FILTER FOR USE IN TIME-OF-ARRIVAL ESTIMATION IN WIRELESS COMMUNICATIONS
    7.
    发明申请
    FILTER FOR USE IN TIME-OF-ARRIVAL ESTIMATION IN WIRELESS COMMUNICATIONS 审中-公开
    过滤器在无线通信的时间估计中使用

    公开(公告)号：US20160205567A1

    公开(公告)日：2016-07-14

    申请号：US14593920

    申请日：2015-01-09

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatesan NALLAMPATTI EKAMBARAM ,  Jubin JOSE ,  Xinzhou WU ,  Thomas Joseph RICHARDSON

    IPC: H04W24/08 ,  H04B1/10 ,  H04B17/336

    CPC classification number: H04B1/1036 ,  H04L1/1692 ,  H04L1/248 ,  H04W56/0055

    Abstract: Apparatus and method are provided for estimating the shortest time of arrival or the shortest round-trip time (RTT) of radio signals between communication devices in a wireless network. Filtering is performed by adaptive filters with suppressed side lobes adjustable in the time domain and widths of main lobes adjustable in the frequency domain to improve detection of signals on the shortest path of arrival or line-of-sight (LOS) path while mitigating the effects signals received from longer paths of arrival or non-line-of-sight (NLOS) paths.

    Abstract translation: 提供了用于估计无线网络中的通信设备之间的最短到达时间或无线电信号的最短往返时间（RTT）的设备和方法。 滤波由自适应滤波器执行，其抑制旁瓣在时域中可调节，并且主波瓣的宽度可在频域中调节，以改善对最短路径或视线（LOS）路径上的信号的检测，同时减轻效应 从更长的到达途径或非视线（NLOS）路径接收的信号。

    ADAPTIVE TRIGGERING OF RTT RANGING FOR ENHANCED POSITION ACCURACY
    10.
    发明申请
    ADAPTIVE TRIGGERING OF RTT RANGING FOR ENHANCED POSITION ACCURACY 有权
    用于增强位置精度的RTT范围的自适应触发

    公开(公告)号：US20160277890A1

    公开(公告)日：2016-09-22

    申请号：US14795642

    申请日：2015-07-09

    Applicant: QUALCOMM Incorporated

    Inventor： Venkatesan NALLAMPATTI EKAMBARAM ,  Urs NIESEN ,  Jubin JOSE ,  Xinzhou WU

    IPC: H04W4/02 ,  H04W28/02 ,  H04W24/08

    CPC classification number: H04W4/023 ,  G01S7/40 ,  G01S13/74 ,  H04W4/046 ,  H04W24/08 ,  H04W28/0284 ,  H04W64/00

    Abstract: A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.

    Abstract translation: 基于通过第一通信信道发送的消息，使用第一机制来估计第一无线设备和第二无线设备之间的范围。 第一通信信道与无线设备的第一无线接入技术能力相关联。 获得指示由第一机构提供的范围估计的精度的一个或多个度量。 当度量不能满足标准时，用于估计第一无线设备和第二无线设备之间的范围的第二机制可以被实现为有利于第一机制。 第二种机制是基于通过第二通信信道发送的单播消息。 第二通信信道与无线设备的第二无线电接入技术能力相关联，并且可以与第一通信信道相同或不同。

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