公开(公告)号：US09167385B2

公开(公告)日：2015-10-20

申请号：US14083150

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Siavash Ekbatani

IPC: H04W24/00 ,  H04W4/02 ,  H04L25/02 ,  H04L25/03 ,  H04W64/00

CPC classification number: H04W4/023 ,  H04L1/00 ,  H04L1/08 ,  H04L25/02 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03821 ,  H04W64/00

Abstract: A ranging procedure is performed using interference cancellation using preamble messages from a plurality of objects, each of which includes a pre-defined orthogonal design coded modulation patterns. A channel for an object may be estimated using the pre-defined orthogonal design coded modulation patterns in the preamble messages received from objects to remove interference of the preamble message received from other objects. A range to an object may be determined based on a determined delay in the preamble message from that object. The range may be used to assist in determining the position of the object. The pre-defined preamble message may be transmitted by receiving a schedule for an access point in a network for a ranging procedure and periodically transmitting a pre-defined preamble message for the ranging procedure, the pre-defined preamble message includes an orthogonal design coded modulation pattern.

Abstract translation: 使用来自多个对象的前导码消息使用干扰消除来执行测距过程，每个对象包括预定义的正交设计编码调制模式。 可以使用从对象接收的前导消息中的预定义正交设计编码调制模式来估计对象的信道，以消除从其他对象接收的前导码消息的干扰。 可以基于来自该对象的前导码消息中确定的延迟来确定到对象的范围。 该范围可以用于帮助确定物体的位置。 可以通过接收针对测距过程的网络中的接入点的调度并周期性地发送用于测距过程的预定义的前导消息来发送预定义的前导消息，预定义的前导消息包括正交设计编码调制 模式。

公开(公告)号：US20150261986A1

公开(公告)日：2015-09-17

申请号：US14210852

申请日：2014-03-14

Applicant: QUALCOMM Incorporated

Inventor： Siavash Ekbatani ,  Srinivas Chilukuri

IPC: G06K7/10 ,  G08B25/10

CPC classification number: G06K7/10366 ,  G06Q30/0256 ,  G06Q30/0261 ,  G06Q30/0267 ,  G06Q30/0271 ,  G08B25/10 ,  H04W4/029 ,  H04W8/005

Abstract: Methods, systems, and devices are described that provide for wireless searching in a location tracking environment. The methods, systems, and/or devices may include tools and techniques that provide for analyzing requests for location data of an entity and preparing a response set based on the request and the available tags. Response sets may include location data for the requested entity, location data for a second entity different from the requested entity, a clarifying question, or a null value. Multiple requests may be received and an order of evaluation will be determined. Results may be adjusted for individual users. Categories as well as individual entities may be searched. Upon receiving a response set, a mobile device may display directions to the identified entity.

Abstract translation: 描述了在位置跟踪环境中提供无线搜索的方法，系统和设备。 方法，系统和/或设备可以包括提供用于分析对实体的位置数据的请求并基于该请求和可用标签来准备响应集合的工具和技术。 响应集可以包括所请求实体的位置数据，不同于被请求实体的第二实体的位置数据，澄清问题或空值。 可以接收多个请求，并且确定评估顺序。 结果可能会针对个人用户进行调整。 可以搜索类别以及个别实体。 一旦接收到响应集，移动设备可以向所标识的实体显示指示。

公开(公告)号：US09084087B2

公开(公告)日：2015-07-14

申请号：US13966079

申请日：2013-08-13

Applicant: QUALCOMM Incorporated

Inventor： Siavash Ekbatani ,  Alok Kumar Gupta ,  Yih-Hao Lin

IPC: H04W4/04 ,  H04B1/7163 ,  G01S5/02 ,  G01S11/08 ,  G01S5/14

CPC classification number: H04W4/04 ,  G01S5/0215 ,  G01S5/0221 ,  G01S5/14 ,  G01S11/08 ,  H04B1/7163

Abstract: Methods, systems, and devices for detecting earliest channel path and/or determining time of arrival of signals in location tracking systems are described. An ultra-wideband (UWB) signal may be received from a tag. A noise estimation level above which the UWB signal is detectable may be determined using a noise estimation metric. A channel impulse response (IR) energy level may be determined using a channel energy metric. A leading edge window of the UWB signal may be identified. The leading edge window may be based on, at least in part, the noise estimation level and the channel IR energy level.

Abstract translation: 描述了用于检测最早通道路径和/或确定位置跟踪系统中的信号到达时间的方法，系统和设备。 可以从标签接收超宽带（UWB）信号。 可以使用噪声估计度量来确定高于该噪声估计水平的UWB信号是可检测的。 可以使用信道能量度量来确定信道脉冲响应（IR）能级。 可以识别UWB信号的前沿窗口。 前沿窗口可以至少部分地基于噪声估计水平和信道IR能量水平。

公开(公告)号：US20150092821A1

公开(公告)日：2015-04-02

申请号：US14042537

申请日：2013-09-30

Applicant: QUALCOMM Incorporated

Inventor： Alok Kumar Gupta ,  Siavash Ekbatani

IPC: 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，系统和设备。 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。