公开(公告)号：US09332523B2

公开(公告)日：2016-05-03

申请号：US14272844

申请日：2014-05-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Carlos Horacio Aldana ,  Sandip Homchaudhuri ,  James Simon Cho

IPC: H04W64/00 ,  G01S5/02

CPC classification number: H04W64/003 ,  G01S5/0205 ,  H04W64/00

Abstract: This disclosure includes systems and methods for determining the location of each of a plurality of STAs of a WLAN where an AP measures the round-trip time (RTT) and the angle of arrival (AOA) to each STA from implicit packet exchange, such as data frame and ACK frame. The AP may then report the RTT and AOA measurements to each STA using a dedicated beacon information element (IE) which multicasts RTT and AOA measurements to the STAs. By employing an additional parameter, namely, angle of arrival AOA, a single AP may compute the two-dimensional location of each associated STA. Further, another beacon IE may multicast mapping of the AIDs to MAC addresses so that the associated STAs can understand such mapping for STAs in a network so that one STA may know the location of other STAs. Encryption may be employed to achieve privacy.

Abstract translation: 本公开包括用于确定WLAN的多个STA中的每一个的位置的系统和方法，其中AP从隐式分组交换测量到每个STA的往返时间（RTT）和到达角（AOA），例如 数据帧和ACK帧。 然后，AP可以使用将RTT和AOA测量多播到STA的专用信标信息元素（IE）向每个STA报告RTT和AOA测量。 通过采用附加参数，即到达角AOA，单个AP可以计算每个相关STA的二维位置。 此外，另一个信标IE可以将AID多播到MAC地址，使得相关联的STA可以理解网络中的STA的这种映射，使得一个STA可以知道其他STA的位置。 可以采用加密来实现隐私。

公开(公告)号：US20160014711A1

公开(公告)日：2016-01-14

申请号：US14796576

申请日：2015-07-10

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04W56/00 ,  H04L12/26

Abstract: Techniques disclosed can help mitigate errors due to clock drift in the determination of round trip time (RTT) from a message exchange between two mobile stations. The techniques involve reducing the time (and, therefore, the drift) over which RTT is computed. Such techniques can be used with clock-synchronizing and/or other methods for reducing RTT errors to provide RTT calculations far more accurate than traditional methods.

Abstract translation: 所公开的技术可以帮助在两个移动站之间的消息交换中确定往返时间（RTT）时由于时钟漂移而导致的错误。 这些技术涉及减少计算RTT的时间（以及因此的漂移）。 这种技术可以与时钟同步和/或其他方法一起使用，以减少RTT误差，以提供比传统方法更准确的RTT计算。

公开(公告)号：US20150078215A1

公开(公告)日：2015-03-19

申请号：US14487082

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  Simone Merlin ,  Carlos Horacio Aldana

IPC: H04L5/14 ,  H04W4/12 ,  H04L5/00

CPC classification number: H04L5/14 ,  H04L5/003 ,  H04L47/14 ,  H04W4/12

Abstract: Systems, methods, and apparatuses for full duplex communication on a wireless network are disclosed. In one aspect, one or more lists of non-effecting nodes are determined for one or more devices on the wireless network. A list of non-effecting nodes for a device identifies other network nodes or devices whose transmissions do not cause substantial interference with the device. When a full duplex communication is scheduled on the wireless network, a downlink message transmitted to the device may be performed concurrently with an uplink transmission from one of the non-effecting devices. This full duplex communication may be possible even if the device does not inherently support full-duplex communication on the wireless network.

Abstract translation: 公开了用于无线网络上的全双工通信的系统，方法和装置。 在一个方面中，为无线网络上的一个或多个设备确定一个或多个不影响节点的列表。 用于设备的非影响节点的列表标识其传输不会对设备造成实质干扰的其他网络节点或设备。 当在无线网络上调度全双工通信时，发送到设备的下行链路消息可以与来自非有效设备之一的上行链路传输同时执行。 即使该设备本身不支持无线网络上的全双工通信，该全双工通信也是可能的。

公开(公告)号：US20140355462A1

公开(公告)日：2014-12-04

申请号：US14285594

申请日：2014-05-22

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Sandip Homchaudhuri ,  Xin He ,  Xiaoxin Zhang ,  Ashish Kumar Shukla

IPC: H04W24/10

CPC classification number: H04L43/0864 ,  G01S5/00 ,  G01S13/767 ,  H04L5/005 ,  H04W4/043 ,  H04W4/30 ,  H04W24/00 ,  H04W64/00 ,  H04W72/082 ,  H04W76/10

Abstract: Disclosed are systems, methods and devices for obtaining round trip time measurements for use in location based services. In particular implementations, a fine timing measurement request message wirelessly transmitted by a first transceiver device to a second transceiver device may permit additional processing features in computing or applying a signal round trip time measurement. Such a signal round trip time measurement may be used in positioning operations.

公开(公告)号：US20140286324A1

公开(公告)日：2014-09-25

申请号：US14212849

申请日：2014-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Carlos Horacio Aldana ,  Didier Johannes Richard van Nee

IPC: G01S5/02 ,  H04W84/12

CPC classification number: H04W84/12 ,  G01S5/0081 ,  G01S5/021 ,  G01S5/14 ,  H04W64/00

Abstract: Described are a system and method for a first wireless access point to compute timing parameters of neighboring access points based, at least in part, on beacon signals transmitted the neighboring access points. The first wireless access point may the broadcast the computed timing parameters to mobile devices. A mobile device having received the computed timing parameters may then compute an estimate of its location based, at least in part, on subsequently acquired beacon signals transmitted from the first access point and/or neighboring access points.

Abstract translation: 描述了用于第一无线接入点的系统和方法，用于至少部分地基于发射相邻接入点的信标信号来计算相邻接入点的定时参数。 第一无线接入点可以将所计算的定时参数广播到移动设备。 接收所计算的定时参数的移动设备可以至少部分地基于从第一接入点和/或相邻接入点发送的随后获取的信标信号来计算其位置的估计。

公开(公告)号：US20140254402A1

公开(公告)日：2014-09-11

申请号：US13791834

申请日：2013-03-08

Applicant: QUALCOMM INCORPORATED

Inventor： Carlos Horacio Aldana

IPC: H04W24/02

CPC classification number: H04W24/02 ,  G01S5/14 ,  H04W64/00 ,  H04W84/12

Abstract: Disclosed are systems, methods and devices for application of estimating a apposition of a mobile device based, at least in part, on measuring differences of times of arrival of data packets transmitted to the mobile device from transmitters. In specific implementations, time-staggered quasi-matched filter correlators may applying a known waveform or data sequence to a payload of a received data packet to detect a correlation peak or correlation maximum corresponding to a time of arrival of the received data packet.

Abstract translation: 至少部分地基于测量从发射机发送到移动设备的数据分组的到达时间的差异来应用估计移动设备的配置的系统，方法和设备。 在具体实现中，时间交错的准匹配滤波器相关器可以将已知的波形或数据序列应用于接收的数据分组的有效载荷，以检测与接收到的数据分组的到达时间相对应的相关峰值或相关最大值。