公开(公告)号：US20150094081A1

公开(公告)日：2015-04-02

申请号：US14042442

申请日：2013-09-30

Applicant: QUALCOMM Incorporated

Inventor： Alok Kumar Gupta

IPC: H04W4/04

CPC classification number: H04W4/04 ,  G01S5/00 ,  G01S5/0242 ,  G01S5/0289 ,  H04W64/00 ,  H04W64/003

Abstract: Methods, systems, and devices are described for determining and updating coordinates of access points (APs) within a location tracking system. Tools and techniques are described that may provide for automatically determining a coordinate set, which represents coordinates of at least three neighboring APs within a location tracking area. These techniques may be utilized at the time of the APs' deployment and/or when APs are moved or relocated to a new location. The methods, systems, and devices may be applicable to single- and multi-floor location tracking systems. Coordinate and/or coordinate sets of APs may be stored in a location tracking server, and they may used in determining a location of tracking tags with the location tracking area. The stored coordinates and/or coordinate sets may be updated as the location of APs change.

Abstract translation: 描述了用于确定和更新位置跟踪系统内的接入点（AP）的坐标的方法，系统和设备。 描述了可以提供自动确定表示位置跟踪区域内的至少三个相邻AP的坐标的坐标集的工具和技术。 这些技术可以在AP的部署时和/或当AP被移动或重定位到新的位置时使用。 方法，系统和设备可能适用于单层和多层位置跟踪系统。 AP的坐标和/或坐标集可以存储在位置跟踪服务器中，并且它们可以用于确定具有位置跟踪区域的跟踪标签的位置。 存储的坐标和/或坐标集可以随着AP的位置而改变。

公开(公告)号：US20150078419A1

公开(公告)日：2015-03-19

申请号：US14201156

申请日：2014-03-07

Applicant: QUALCOMM Incorporated

Inventor： Alok Kumar Gupta ,  Siavash Ekbatani

IPC: H04B1/7163 ,  H04B1/717

CPC classification number: H04B1/7163 ,  H04B1/7172 ,  H04B1/7174

Abstract: Methods, systems, and devices are described for maximizing transmit power of an ultra-wideband (UWB) pulse. A spectral mask and a spectral efficiency may be identified. A set of transmit filter coefficients may be generated at a fraction of a carrier frequency. The set of transmit filter coefficients may be based at least in part on the identified spectral mask and spectral efficiency. The UWB pulse may be transmitted with a shape defined at least in part by the set of transmit filter coefficients.

Abstract translation: 描述了用于最大化超宽带（UWB）脉冲的发射功率的方法，系统和设备。 可以识别光谱掩模和光谱效率。 可以以载波频率的一小部分生成一组发射滤波器系数。 发射滤波器系数的集合可以至少部分地基于所识别的频谱掩模和频谱效率。 UWB脉冲可以至少部分地由发射滤波器系数集合定义的形状来传输。

公开(公告)号：US09106321B2

公开(公告)日：2015-08-11

申请号：US14042537

申请日：2013-09-30

Applicant: QUALCOMM Incorporated

Inventor： Alok Kumar Gupta ,  Siavash Ekbatani

IPC: H04B1/00 ,  H04B1/719 ,  H04B1/7163

CPC classification number: H04B1/719 ,  H04B1/71637

Abstract: Methods, systems, and devices for maximizing signal to interference plus noise ratio of a channel in a location tracking system. The methods, systems, and device may include tools and techniques for minimizing interference from adjacent samples at a receive filter, may include relaxing constraints at a transmitter. A receive filter or set of receive, or both, filters may be determined and utilized by specifying and or determining various transmitter, receiver, and channel characteristics. The receive filter and set of filters may be determined through an iterative approach involving one or more solution metrics.

Abstract translation: 用于最大化位置跟踪系统中信道的信噪比加噪声比的方法，系统和装置。 方法，系统和设备可以包括用于最小化在接收滤波器处的相邻采样的干扰的工具和技术，可以包括在发射机处的放松约束。 可以通过指定和/或确定各种发射机，接收机和信道特性来确定和利用接收滤波器或接收集合或两者的滤波器。 接收滤波器和滤波器组可以通过涉及一个或多个解决度量的迭代方法来确定。

公开(公告)号：US20150092753A1

公开(公告)日：2015-04-02

申请号：US14042446

申请日：2013-09-30

Applicant: QUALCOMM Incorporated

Inventor： Alok Kumar Gupta ,  William E. Stein ,  Scott Howard King

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04B7/2687 ,  H04W56/002 ,  H04W56/0035

Abstract: Methods, systems, and devices are described that provide for high precision synchronization between pairs of APs within a tracking area of a position location network. These tools and techniques may provide for incrementally synchronizing timers and oscillators located at respective APs. An AP may transmit a course frequency and timing acquisition signal that a second AP utilizes to estimate a frequency offset and/or time offset. The AP may transmit a subsequent fine frequency and timing acquisition signal which may be used to accurately adjust the estimated frequency offset and/or time offset of the second AP. The second AP may thus incrementally synchronize its oscillator(s) and/or timer(s). These techniques may be utilized over a multi-hop wireless network. The methods, systems, and devices may be applicable to single- and multi-floor location tracking systems.

Abstract translation: 描述了提供位置定位网络的跟踪区域内的AP对之间的高精度同步的方法，系统和设备。 这些工具和技术可以提供定位器和位于相应AP处的振荡器的增量同步。 AP可以发送第二AP利用的路线频率和定时获取信号来估计频率偏移和/或时间偏移。 AP可以发送随后的精细频率和定时获取信号，其可以用于精确地调整第二AP的估计频率偏移和/或时间偏移。 因此，第二AP可以递增地同步其振荡器和/或定时器。 这些技术可以在多跳无线网络上使用。 方法，系统和设备可能适用于单层和多层位置跟踪系统。