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11. 发明申请

US20160204811A1 ADAPTIVE CHANNEL CODING USING POLARIZATION 有权
标题翻译：使用极化的自适应通道编码
公开(公告)号：US20160204811A1
公开(公告)日：2016-07-14
申请号：US14826742
申请日：2015-08-14
申请人： QUALCOMM Incorporated
发明人： Naveen Goela , Venkatesan Nallampatti Ekambaram , Rahul Tandra , Joseph Binamira Soriaga
IPC分类号： H04B1/12 , H04L1/00 , H04B7/04
CPC分类号： H04B1/123 , H03M13/1111 , H03M13/1191 , H03M13/13 , H03M13/353 , H04B7/0413 , H04L1/0009 , H04L1/0041 , H04L1/0057
摘要： Methods, systems, and devices are described for wireless communications at a wireless device. A wireless device may adaptively select a parity check matrix to increase the reliability of signal transmission by adapting to different channel statistics and channel types (e.g., erasure channels, channels with additive white Gaussian noise, and channels with discrete or continuous alphabets). For example, polarization codes (i.e., codes based on rows of a polarization matrix) may be used to construct parity check matrices “on-the-fly” given an estimation of dynamic channel conditions or diverse channel structures. The channel may be decomposed into polarized sub-channels corresponding to the polarization codes, and mutual information profiles may be determined for each of the polarized sub-channels. The parity check matrix corresponding to the polarization codes may be constructed based on the mutual information profile of all polarized sub-channels. The wireless device may encode or decode data based on the constructed parity check matrix.
摘要翻译：描述了无线设备上的无线通信的方法，系统和设备。无线设备可以自适应地选择奇偶校验矩阵，以通过适应不同的信道统计和信道类型（例如，擦除信道，具有加性白高斯噪声的信道和具有离散或连续字母的信道）来提高信号传输的可靠性。例如，考虑到动态信道条件或不同信道结构的估计，偏振码（即，基于偏振矩阵的行的代码）可用于在“动态”构造奇偶校验矩阵。信道可以被分解成对应于偏振码的极化子信道，并且可以为每个偏振子信道确定互信息曲线。可以基于所有极化子信道的互信息轮廓来构造对应于偏振码的奇偶校验矩阵。无线设备可以基于构造的奇偶校验矩阵对数据进行编码或解码。

12. 发明授权

US08982935B2 Apparatus and method for ranging using round-trip time by broadcasting in a network 有权
标题翻译：通过在网络中广播来测距使用往返时间的装置和方法
公开(公告)号：US08982935B2
公开(公告)日：2015-03-17
申请号：US13951115
申请日：2013-07-25
申请人： QUALCOMM Incorporated
发明人： Sundar Subramanian , Venkatesan Nallampatti Ekambaram , Xinzhou Wu
IPC分类号： H04B1/38 , H04W4/02 , H04W24/10 , H04W56/00
CPC分类号： H04W4/023 , G01S5/021 , G01S5/0289 , G01S5/14 , H04W24/10 , H04W56/001
摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first message from a first wireless communication device and a second message from a second wireless communication device, obtains information associated with a first processing delay with respect to the first message and a second processing delay with respect to the second message, and transmits a third message comprising an indication of the information associated with the first and second processing delays.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品。该设备从第一无线通信设备接收第一消息并从第二无线通信设备接收第二消息，获得与第一消息相关联的第一处理延迟和关于第二消息的第二处理延迟的信息，以及发送包括与第一和第二处理延迟相关联的信息的指示的第三消息。

13. 发明申请

US20150029873A1 APPARATUS AND METHOD FOR RANGING USING ROUND-TRIP TIME BY BROADCASTING IN A NETWORK 有权
标题翻译：一种网络广播使用循环时间的方法的装置和方法
公开(公告)号：US20150029873A1
公开(公告)日：2015-01-29
申请号：US13951115
申请日：2013-07-25
申请人： QUALCOMM Incorporated
发明人： Sundar Subramanian , Venkatesan Nallampatti Ekambaram , Xinzhou Wu
IPC分类号： H04W4/02 , H04W56/00 , H04W24/10
CPC分类号： H04W4/023 , G01S5/021 , G01S5/0289 , G01S5/14 , H04W24/10 , H04W56/001
摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first message from a first wireless communication device and a second message from a second wireless communication device, obtains information associated with a first processing delay with respect to the first message and a second processing delay with respect to the second message, and transmits a third message comprising an indication of the information associated with the first and second processing delays.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品。该设备从第一无线通信设备接收第一消息并从第二无线通信设备接收第二消息，获得与第一消息相关联的第一处理延迟和关于第二消息的第二处理延迟的信息，以及发送包括与第一和第二处理延迟相关联的信息的指示的第三消息。

14. 发明授权

US10938585B2 Location and range determination using broadcast messages 有权
公开(公告)号：US10938585B2
公开(公告)日：2021-03-02
申请号：US14848151
申请日：2015-09-08
申请人： QUALCOMM Incorporated
发明人： Jubin Jose , Urs Niesen , Venkatesan Nallampatti Ekambaram , Xinzhou Wu
IPC分类号： H04L12/18 , H04W64/00 , G01S13/82
摘要： Disclosed are methods, devices, systems, apparatus, servers, computer-/processor-readable media, and other implementations, including a method of estimating a range between a first wireless device and a second wireless device that includes obtaining, at the first wireless device, first information related to a first broadcast message transmitted by the first wireless device, and obtaining, at the first wireless device, second information related to a second broadcast message transmitted by the second wireless device, with the second broadcast message including at least some of the first information. The method also includes determining the range between the first wireless device and the second wireless device based, at least in part, on the first information and the second information.

15. 发明授权

US10502840B2 Outlier detection for satellite positioning system using visual inertial odometry 有权
公开(公告)号：US10502840B2
公开(公告)日：2019-12-10
申请号：US15014009
申请日：2016-02-03
申请人： QUALCOMM Incorporated
发明人： Urs Niesen , Venkatesan Nallampatti Ekambaram , Lionel Jacques Garin , Jubin Jose , Xinzhou Wu
IPC分类号： G01S19/47 , G01C21/16 , G01S5/16 , G01S19/22 , G01S19/42
CPC分类号： G01S19/47 , G01C21/165 , G01S5/163 , G01S19/22 , G01S19/426
摘要： 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.

16. 发明授权

US10285010B2 Adaptive triggering of RTT ranging for enhanced position accuracy 有权
公开(公告)号：US10285010B2
公开(公告)日：2019-05-07
申请号：US15708011
申请日：2017-09-18
申请人： QUALCOMM Incorporated
发明人： Venkatesan Nallampatti Ekambaram , Urs Niesen , Jubin Jose , Xinzhou Wu
IPC分类号： G01S7/40 , H04W4/02 , G01S13/74 , H04W24/08 , H04W28/02 , H04W64/00 , H04W4/04
摘要： 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.

17. 发明授权

US09445237B1 First arrival path based multipath mitigation for angle of arrival estimation 有权
标题翻译：基于到达路径的第一个到达路径减轻估计角度
公开(公告)号：US09445237B1
公开(公告)日：2016-09-13
申请号：US14644613
申请日：2015-03-11
申请人： QUALCOMM Incorporated
发明人： Venkatesan Nallampatti Ekambaram , Vasuki Narasimha Swamy , Jubin Jose , Xinzhou Wu
IPC分类号： H04W4/02
CPC分类号： H04W4/023 , G01S3/043 , G01S3/48
摘要： A system and method are disclosed that may provide an accurate estimate of the angle of arrival (AoA) of a wireless signal received by a device. The received wireless signal may include a plurality of signal components associated with a number of different arrival paths. The device may generate a weighted signal, including a plurality of weighted signal components, by multiplying the plurality of signal components of the received wireless signal with a set of weighting values. The device may identify one or more of the weighted signal components associated with a first arrival path to the device, determine phase information of the one or more identified weighted signal components, and then determine the angle of arrival based, at least in part, on the determined phase information.
摘要翻译：公开了可以提供由设备接收的无线信号的到达角（AoA）的精确估计的系统和方法。所接收的无线信号可以包括与多个不同到达路径相关联的多个信号分量。该装置可以通过将接收到的无线信号的多个信号分量与一组加权值相乘来产生包括多个加权信号分量的加权信号。设备可以识别与到设备的第一到达路径相关联的一个或多个加权信号分量，确定一个或多个识别的加权信号分量的相位信息，然后至少部分地基于确定的相位信息。

18. 发明申请

US20160249316A1 NON-LINE-OF-SIGHT (NLOS) AND LINE-OF-SIGHT (LOS) CLASSIFICATION TECHNIQUES FOR INDOOR RANGING 审中-公开
公开(公告)号：US20160249316A1
公开(公告)日：2016-08-25
申请号：US14631699
申请日：2015-02-25
申请人： QUALCOMM Incorporated
发明人： Shrinivas Shrikant KUDEKAR , Jubin JOSE , Xinzhou WU , Thomas Joseph RICHARDSON , Venkatesan Nallampatti Ekambaram
IPC分类号： H04W64/00 , G01S5/02 , H04W24/08
CPC分类号： H04W64/00 , G01S5/0273 , G01S5/0284
摘要： Techniques for use in determining a position of a mobile device are provided in which a range estimate can be classified as a line-of-sight (LOS) range estimate or a non-line-of-sight (NLOS) range estimate and the range estimate and classification can be used to determine the position of the mobile device. A method according to these techniques includes determining channel impulse response (CIR) information based on at least one measurement of signals exchanged between the mobile device and another wireless device; classifying a range estimate representing an estimated distance between the mobile device and the other wireless device as a line-of-sight (LOS) range estimate or a non-line-of-sight (NLOS) range estimate based at least in part on the CIR information; and using the range estimate and the classification of the range estimate to determine the position of the mobile device.

19. 发明授权

US10536805B2 Adaptive triggering of RTT ranging for enhanced position accuracy 有权
公开(公告)号：US10536805B2
公开(公告)日：2020-01-14
申请号：US16200390
申请日：2018-11-26
申请人： QUALCOMM Incorporated
发明人： Venkatesan Nallampatti Ekambaram , Urs Niesen , Jubin Jose , Xinzhou Wu
IPC分类号： H04W4/02 , H04W24/08 , H04W28/02 , H04W64/00 , G01S7/40 , G01S13/74 , H04W4/40
摘要： 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.

20. 发明授权

US10132933B2 Alignment of visual inertial odometry and satellite positioning system reference frames 有权
公开(公告)号：US10132933B2
公开(公告)日：2018-11-20
申请号：US15014004
申请日：2016-02-02
申请人： QUALCOMM Incorporated
发明人： Venkatesan Nallampatti Ekambaram , Jubin Jose , Urs Niesen , Xinzhou Wu , Lionel Jacques Garin
IPC分类号： G01S19/53 , G01C21/16 , G01S19/42 , G01S19/52 , G01S11/12 , G01S19/47 , G01S5/16
摘要： A method for aligning visual-inertial odometry (VIO) and satellite positioning system (SPS) reference frames includes obtaining a plurality of range-rate measurements of a mobile platform from an SPS. The range-rate measurements are with respect to a global reference frame of the SPS. The method also includes obtaining a plurality of VIO velocity measurements of the mobile platform from a VIO system. The VIO velocity measurements are with respect to a local reference frame of the VIO system. At least one orientation parameter is then determined to align the local reference frame with the global reference frame based on the range-rate measurements and the VIO velocity measurements.

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