公开(公告)号：US20170055235A1

公开(公告)日：2017-02-23

申请号：US14831994

申请日：2015-08-21

Applicant: QUALCOMM Incorporated

Inventor： Khosro Mohammad Rabii ,  Carlos Horacio Aldana ,  Shivakumar Balasubramanyan ,  Padam Lal Kafle ,  Fawad Shaukat ,  Vijay Naicker Subramaniam

IPC: H04W56/00 ,  H04J3/06 ,  H04W76/02

CPC classification number: H04W56/0015 ,  H04J3/0641 ,  H04J3/0667 ,  H04N21/4305 ,  H04N21/4325 ,  H04N21/43637 ,  H04W76/10

Abstract: Providing Precision Timing Protocol (PTP) timing and clock synchronization for wireless multimedia devices is disclosed. In one aspect, a primary wireless multimedia device comprising a timing synchronization control system is provided. The timing synchronization control system is configured to apply a PTP Best-Master-Clock (BMC) algorithm logic to select a master clock from among a system clock of the primary wireless multimedia device, one of one or more connected wireless multimedia devices, or one of one or more external nodes. If the timing synchronization control system selects the system clock of the primary wireless multimedia device, a clock signal of the system clock is provided to the connected wireless multimedia devices as the master clock. If the timing synchronization control system selects a connected wireless multimedia device or an external node as the master clock, the timing synchronization control system synchronizes the system clock with the master clock.

Abstract translation: 公开了为无线多媒体设备提供精确定时协议（PTP）定时和时钟同步。 在一个方面，提供了包括定时同步控制系统的主要无线多媒体设备。 定时同步控制系统被配置为应用PTP最佳主时钟（BMC）算法逻辑来从主无线多媒体设备的系统时钟，一个或多个连接的无线多媒体设备中的一个或一个或多个连接的无线多媒体设备中选择一个主时钟 的一个或多个外部节点。 如果定时同步控制系统选择主无线多媒体设备的系统时钟，则将系统时钟的时钟信号作为主时钟提供给所连接的无线多媒体设备。 如果定时同步控制系统选择连接的无线多媒体设备或外部节点作为主时钟，定时同步控制系统将系统时钟与主时钟同步。

公开(公告)号：US09532328B2

公开(公告)日：2016-12-27

申请号：US14278942

申请日：2014-05-15

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04J3/14 ,  H04L12/26 ,  H04W64/00 ,  H04W24/08 ,  G01S5/02 ,  G01S5/14

CPC classification number: H04W64/00 ,  G01S5/021 ,  G01S5/14 ,  H04W4/02 ,  H04W4/025 ,  H04W24/08

Abstract: Methods and apparatuses of improving quality of positioning are disclosed. According to aspects of the present disclosure, a transition from a short training field to a long training field in one or more communication messages between two wireless stations may be detected. A station may then determine a first arrival correction time based on the transition from the short training field and the long training field. With the first arrival correction time, more accurate timing of communications between the two wireless stations may be determined and used for improving quality of positioning applications.

Abstract translation: 公开了提高定位质量的方法和装置。 根据本公开的方面，可以检测在两个无线站之间的一个或多个通信消息中从短训练场到长训练场的转变。 然后，站可以基于从短训练场和长训练场的转变来确定第一到达校正时间。 利用第一到达校正时间，可以确定两个无线站之间更准确的通信时间，并用于提高定位应用的质量。

公开(公告)号：US09497641B2

公开(公告)日：2016-11-15

申请号：US13759844

申请日：2013-02-05

Applicant: QUALCOMM Incorporated

Inventor： Lionel Jacques Garin ,  Vinay Sridhara ,  Xiaoxin Zhang ,  Sundar Raman ,  Gengsheng Zhang ,  Bernal A. Arroyo ,  Carlos Horacio Aldana

IPC: H04W24/00 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04W24/00 ,  H04B7/0671 ,  H04B7/0828 ,  H04B7/0874

Abstract: Systems, apparatus and methods for determining a cyclic shift delay (CSD) mode from a plurality of CSD modes is disclosed. A received OFDM signal is converted to a channel impulse response (CIR) signal in the time domain and/or a channel frequency response (CFR) signal in the frequency domain. Matched filters and a comparator are used to determine a most likely current CSD mode. Alternatively, a classifier is used with a number of inputs including outputs from two or more matched filters and one or more outputs from a feature extractor. The feature extractor extracts features in the time domain from the CIR signal and/or in the frequency domain from the CFR signal useful in distinguishing various CSD modes.

Abstract translation: 公开了用于从多个CSD模式确定循环移位延迟（CSD）模式的系统，装置和方法。 接收到的OFDM信号在时域中被转换为信道脉冲响应（CIR）信号和/或频域中的信道频率响应（CFR）信号。 匹配滤波器和比较器用于确定最可能的当前CSD模式。 或者，分类器使用多个输入，包括来自两个或多个匹配滤波器的输出和来自特征提取器的一个或多个输出。 特征提取器从CIR信号和/或频域中提取时域中的特征，来自用于区分各种CSD模式的CFR信号。

公开(公告)号：US09445227B2

公开(公告)日：2016-09-13

申请号：US14268978

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04W4/02 ,  H04L29/08 ,  H04W24/02 ,  H04W64/00 ,  H04W24/10 ,  G01S5/00 ,  G01S5/02 ,  G01S5/10

CPC classification number: H04W4/02 ,  G01S5/0081 ,  G01S5/021 ,  G01S5/10 ,  H04L29/08657 ,  H04L67/18 ,  H04W24/02 ,  H04W24/10 ,  H04W64/00 ,  H04W64/003

Abstract: Techniques for passive positioning of a client station are disclosed. In an example a passive positioning scheme may include detecting an incoming message from an access point, determining a Round Trip Time (RTT) value associated with the access point, generating an acknowledgment message, calculating a time of departure for the acknowledgment message based on the RTT value, and sending the acknowledgment message at the time of departure.

Abstract translation: 公开了用于客户站的被动定位的技术。 在一个示例中，被动定位方案可以包括检测来自接入点的输入消息，确定与接入点相关联的往返时间（RTT）值，生成确认消息，基于所述接收点计算确认消息的出发时间 RTT值，并在出发时发送确认消息。

公开(公告)号：US20160262122A1

公开(公告)日：2016-09-08

申请号：US14850459

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04W56/00 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04W56/0015 ,  H04J3/0667 ,  H04W24/10 ,  H04W56/0035 ,  H04W72/0446

Abstract: Disclosed are methods and systems for synchronizing clocks maintained at different devices in a wireless communication network. A first wireless transceiver device may receive one or more messages from a second wireless transceiver device with parameters indicative of a first clock state. The first wireless transceiver device may then synchronize a second clock state maintained at the first wireless device based, at least in part, on the one or more parameters indicative of the first clock state.

Abstract translation: 公开了用于在维持在无线通信网络中的不同设备处的时钟同步的方法和系统。 第一无线收发器设备可以从具有指示第一时钟状态的参数的第二无线收发器设备接收一个或多个消息。 然后，第一无线收发器设备可以至少部分地基于指示第一时钟状态的一个或多个参数来同步保持在第一无线设备处的第二时钟状态。

公开(公告)号：US20160234704A1

公开(公告)日：2016-08-11

申请号：US15013374

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W24/06 ,  H04L1/16 ,  H04L12/26 ,  H04W72/04

CPC classification number: H04W24/06 ,  G01S5/12 ,  G01S13/74 ,  H04L1/16 ,  H04L43/0864 ,  H04W72/0406 ,  H04W72/0446

Abstract: Apparatuses and methods are disclosed that may perform ranging operations between an initiator device and a responder device. The initiator device may request the responder device to perform a ranging operation. The responder device may transmit a first fine timing measurement (FTM) frame to the initiator device, may receive an acknowledgement (ACK) frame from the responder device, and may transmit a second FTM frame to the initiator device. The second FTM frame may include a time value and angle information. The time value may indicate a difference between a time of departure (TOD) of the first FTM frame and a time of arrival (TOA) of the ACK frame. The angle information may indicate a direction of the initiator device relative to the responder device. The initiator device may determine its position, relative to the responder device, based at least in part on the received time value and angle information.

Abstract translation: 公开了可以在启动器设备和响应器设备之间执行测距操作的设备和方法。 发起者设备可以请求应答者设备进行测距操作。 应答器设备可以向发起者设备发送第一精细定时测量（FTM）帧，可以从应答器设备接收确认（ACK）帧，并且可以向发起者设备发送第二FTM帧。 第二FTM帧可以包括时间值和角度信息。 时间值可以指示第一FTM帧的出发时间（TOD）与ACK帧的到达时间（TOA）之间的差。 角度信息可以指示发起者设备相对于应答器设备的方向。 发起者设备可以至少部分地基于所接收的时间值和角度信息来确定其相对于应答器设备的位置。

公开(公告)号：US20160234703A1

公开(公告)日：2016-08-11

申请号：US15013304

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W24/06 ,  H04W72/04 ,  H04L1/16

CPC classification number: H04W24/06 ,  G01S5/12 ,  G01S13/74 ,  H04L1/16 ,  H04L43/0864 ,  H04W72/0406 ,  H04W72/0446

Abstract: Apparatuses and methods are disclosed that may perform ranging operations between an initiator device and a responder device. The initiator device may request the responder device to perform a ranging operation. The responder device may transmit a first fine timing measurement (FTM) frame to the initiator device, may receive an acknowledgement (ACK) frame from the responder device, and may transmit a second FTM frame to the initiator device. The second FTM frame may include a time value and angle information. The time value may indicate a difference between a time of departure (TOD) of the first FTM frame and a time of arrival (TOA) of the ACK frame. The angle information may indicate a direction of the initiator device relative to the responder device.

Abstract translation: 公开了可以在启动器设备和响应器设备之间执行测距操作的设备和方法。 发起者设备可以请求应答者设备进行测距操作。 应答器设备可以向发起者设备发送第一精细定时测量（FTM）帧，可以从应答器设备接收确认（ACK）帧，并且可以向发起者设备发送第二FTM帧。 第二FTM帧可以包括时间值和角度信息。 时间值可以指示第一FTM帧的出发时间（TOD）与ACK帧的到达时间（TOA）之间的差。 角度信息可以指示发起者设备相对于应答器设备的方向。

公开(公告)号：US20160150500A1

公开(公告)日：2016-05-26

申请号：US14939278

申请日：2015-11-12

Applicant: QUALCOMM Incorporated

Inventor： Meghna Agrawal ,  Ning Zhang ,  Xiaoxin Zhang ,  Youhan Kim ,  Praveen Dua ,  Carlos Horacio Aldana

IPC: H04W64/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L1/1685 ,  H04L1/18 ,  H04L1/1854 ,  H04L1/1896 ,  H04L2001/0093 ,  H04W84/12

Abstract: Methods and apparatuses are disclosed that may perform simultaneous ranging operations between a requester device and each of a plurality of target devices using OFDMA-based frame exchanges while maintaining a level of accuracy comparable to ranging operations that do not use OFDMA-based frame exchanges. Tone interleaving may be used so that the ranging devices may estimate channel conditions for the full frequency spectrum of the wireless medium. For example, a unique set of two or more non-adjacent groups of OFDM sub-carrier frequencies may be allocated to each of the plurality of target devices for ranging operations.

Abstract translation: 公开了可以使用基于OFDMA的帧交换在请求者设备和多个目标设备中的每一个之间执行同时测距操作的方法和设备，同时保持与不使用基于OFDMA的帧交换的测距操作相当的准确度。 可以使用音调交织，使得测距设备可以估计无线介质的全频谱的信道条件。 例如，可将两个或更多个非相邻OFDM子载波频率组的唯一集合分配给多个目标设备中的每一个用于测距操作。

公开(公告)号：US20160150499A1

公开(公告)日：2016-05-26

申请号：US14938738

申请日：2015-11-11

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W64/00 ,  H04W24/10 ,  H04L5/00 ,  H04W4/02

CPC classification number: H04W64/00 ,  G01S5/0236 ,  G01S11/02 ,  H04L5/0055 ,  H04W4/02 ,  H04W24/10 ,  H04W84/12

Abstract: Apparatuses and methods for performing multi-channel passive ranging operations are disclosed. In one example, a passive listening device may receive, on a first wireless channel, a first exchange of signals between a first wireless device and a second wireless device, and then receive on a second wireless channel, a second exchange of signals between the first wireless device and the second wireless device, the first wireless channel different than the second wireless channel. The passive listening device may determine a differential distance between the passive listening device and the first and second wireless devices based, at least in part, on the first and second exchanges of signals on the first and second wireless channels, respectively.

Abstract translation: 公开了用于执行多通道无源测距操作的装置和方法。 在一个示例中，无源聆听设备可以在第一无线信道上接收第一无线设备和第二无线设备之间的第一信号交换，然后在第二无线信道上接收第一无线设备之间的第二信号交换 无线设备和第二无线设备，第一无线信道不同于第二无线信道。 至少部分地基于第一和第二无线信道上的信号的第一和第二交换，被动收听设备可以分别确定无源收听设备与第一和第二无线设备之间的差距。

公开(公告)号：US20160119805A1

公开(公告)日：2016-04-28

申请号：US14842418

申请日：2015-09-01

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Sandip HomChaudhuri ,  Santosh Kumar Vamaraju ,  Subash Marri Sridhar ,  Bernal Arroyo

IPC: H04W24/08 ,  H04L12/26

CPC classification number: H04L43/106 ,  G01S5/0284 ,  H04L67/143 ,  H04L67/18 ,  H04W64/00 ,  H04W76/22

Abstract: In a procedure for determining distance (or angle) between a pair of electronic devices wirelessly connected to one another, a current session may be temporarily suspended on request and thereafter the current session may be resumed. Temporary suspension and resumption of the current session may, for example, eliminate starting a new session between the pair of electronic devices and repeating a determination of parameters that were initially agreed upon in the current session. Temporary suspension of a current session may be signaled wirelessly, by one electronic device to the other electronic device, for example, by setting a specific value in a specific field, to signal that the current session is to be paused now, in a frame or message transmitted from the pausing device to the to-be-paused device. The current session may be resumed without repeating determination of the initially-agreed upon parameters, by transmitting a frame to initiate measurement exchange.

Abstract translation: 在用于确定一对无线连接的电子设备之间的距离（或角度）的过程中，当前会话可以根据请求暂时中止，此后可以恢复当前会话。 例如，临时暂停和恢复本届会议可能会消除在该对电子设备之间开始新的会话，并重复确定当前会话中最初商定的参数。 当前会话的暂时中止可以通过一个电子设备无线地通过另一个电子设备来发信号，例如，通过在特定字段中设置特定值来表示当前会话现在要暂停，以帧或 从暂停设备发送到待暂停设备的消息。 可以通过发送帧来启动测量交换，可以恢复当前会话而不重复首先同意的参数的确定。