公开(公告)号：US20150050944A1

公开(公告)日：2015-02-19

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

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：US20230073817A1

公开(公告)日：2023-03-09

申请号：US17468281

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Peter SHAH ,  Ajay Devadatta KANETKAR ,  Siavash EKBATANI ,  Yuanning YU ,  Shrenik PATEL ,  Dongjiang QIAO ,  Rajagopalan RANGARAJAN

IPC: H04K3/00 ,  H04B17/318

Abstract: Certain aspects of the present disclosure generally relate to jamming detection for radio frequency (RF) front-end circuitry. For example, certain aspects provide an apparatus having a first counter configured to count a number of times that a power of a reception signal exceeds a first threshold. The apparatus also includes a second counter configured to count a number of measurements of the power of the reception signal. The apparatus further includes control logic having a first input coupled to an output of the first counter and having a second input coupled to an output of the second counter. The control logic is configured to determine an amount of jamming over a measurement window based on the number of times that the power of the reception signal exceeds the first threshold and on the number of measurements.

公开(公告)号：US20240430031A1

公开(公告)日：2024-12-26

申请号：US18825157

申请日：2024-09-05

Applicant: QUALCOMM Incorporated

Inventor： Peter SHAH ,  Ajay Devadatta KANETKAR ,  Siavash EKBATANI ,  Yuanning YU ,  Shrenik PATEL ,  Dongjiang QIAO ,  Rajagopalan RANGARAJAN

IPC: H04K3/00 ,  H04B17/318

Abstract: Certain aspects of the present disclosure generally relate to jamming detection for radio frequency (RF) front-end circuitry. For example, certain aspects provide an apparatus having a first counter configured to count a number of times that a power of a reception signal exceeds a first threshold. The apparatus also includes a second counter configured to count a number of measurements of the power of the reception signal. The apparatus further includes control logic having a first input coupled to an output of the first counter and having a second input coupled to an output of the second counter. The control logic is configured to determine an amount of jamming over a measurement window based on the number of times that the power of the reception signal exceeds the first threshold and on the number of measurements.

公开(公告)号：US20220174784A1

公开(公告)日：2022-06-02

申请号：US17108767

申请日：2020-12-01

Applicant: QUALCOMM Incorporated

Inventor： Siavash EKBATANI

IPC: H04W84/04 ,  H04L27/26 ,  H03M1/18 ,  H03M1/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may identify an analog to digital converter (ADC) clipping rate for one or more measurement windows. The receiver device may modify, based at least in part on a determination that the ADC clipping rate does not satisfy a threshold, a low noise amplifier (LNA) gain value to be used by the receiver device. The receiver device may receive a signal using the modified LNA gain value. Numerous other aspects are provided.

公开(公告)号：US20150141034A1

公开(公告)日：2015-05-21

申请号：US14083150

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Siavash EKBATANI

IPC: H04W4/02 ,  H04L25/02 ,  H04L25/03

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。