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21.发明申请SYSTEMS AND METHODS FOR SYNCHRONIZING TIMING BETWEEN WIRELESS NETWORKING DEVICES 有权用于同步无线网络设备之间的时序的系统和方法公开(公告)号：US20140314068A1
公开(公告)日：2014-10-23
申请号：US14253842
申请日：2014-04-15
Applicant: QUALCOMM Incorporated
IPC: H04W56/00
CPC classification number: H04W56/001 , H04J3/0667 , H04W36/00 , H04W56/00
Abstract: Systems and methods are provided for synchronizing a timing of one or more access points in an area. The systems and methods utilize a timestamp frame exchange between the one or more access points based on a timestamp refresh interval that is changed after each timestamp frame exchange is performed.
Abstract translation: 提供了系统和方法，用于使区域中的一个或多个接入点的定时同步。 系统和方法基于在执行每个时间戳帧交换之后改变的时间戳刷新间隔来利用一个或多个接入点之间的时间戳帧交换。
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公开(公告)号：US20140254511A1
公开(公告)日：2014-09-11
申请号：US14185660
申请日：2014-02-20
Applicant: Qualcomm Incorporated
Inventor： Carlos Horacio ALDANA , Ning ZHANG
IPC: H04W56/00
CPC classification number: H04W56/0035 , H04W40/244 , H04W56/003 , H04W88/08
Abstract: Systems and methods for calculating round trip time (RTT) between two wireless devices with respective clock drifts, while lowering the impact of the clock drifts on the RTT. A first RTT in a first direction is determined between a first wireless device and a second wireless device based on a first set of one or more messages exchanged between the first wireless device and the second wireless device. A second RTT in a second direction is determined between the second wireless device and the first wireless device based on a second set of one or more messages exchanged between the second wireless device and the first wireless device, and an average RTT of the first RTT and the second RTT is computed, wherein the average RTT has a low impact of the clock drifts.
Abstract translation: 在具有相应时钟漂移的两个无线设备之间计算往返时间（RTT）的系统和方法，同时降低时钟漂移对RTT的影响。 基于在第一无线设备和第二无线设备之间交换的一个或多个消息的第一组，在第一无线设备和第二无线设备之间确定第一方向上的第一RTT。 基于在第二无线设备和第一无线设备之间交换的一个或多个消息的第二组以及第一RTT的平均RTT和第二无线设备的平均RTT，在第二无线设备和第一无线设备之间确定第二RTT， 计算第二RTT，其中平均RTT对时钟漂移的影响较小。
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公开(公告)号：US20140160959A1
公开(公告)日：2014-06-12
申请号：US13794543
申请日：2013-03-11
Applicant: QUALCOMM INCORPORATED
Inventor： Carlos Horacio ALDANA , Sandip HOMCHAUDHURI , Xin HE , Xiaoxin ZHANG , Ashish Kumar SHUKLA
IPC: H04W24/00
CPC classification number: H04W24/00 , G01S5/14 , H04L43/0864 , H04L47/283 , H04W64/003
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.
Abstract translation: 公开了用于获得用于基于位置的服务的往返时间测量的系统，方法和装置。 在特定实现中，由第一收发器设备无线传输到第二收发器设备的精确定时测量请求消息可以允许在计算或应用信号往返时间测量时的附加处理特征。 这种信号往返时间测量可以用于定位操作。
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公开(公告)号：US20190086505A1
公开(公告)日：2019-03-21
申请号：US15710242
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Rahul MALIK , Carlos Horacio ALDANA , Hemanth SAMPATH
Abstract: Certain aspects of the present disclosure provide methods and apparatus for estimating angular information, such as angle of arrival (AoA) information or angle of departure (AoD) information.
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25.发明申请公开(公告)号：US20170374513A1
公开(公告)日：2017-12-28
申请号：US15189501
申请日：2016-06-22
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep VENKATRAMAN , Carlos Horacio ALDANA
CPC classification number: H04W4/023 , G01S5/021 , G01S5/0236 , G01S5/14 , H04B17/11 , H04L43/0864 , H04W24/10 , H04W84/12
Abstract: In one aspect, a method includes performing, by a wireless station, a fine timing measurement (FTM) procedure with each of one or more FTM-enabled access points (APs) to obtain a respective one or more FTM-based round-trip time (RTT) measurement between the wireless station and each of the one or more FTM-enabled APs. The method also includes performing a non-FTM procedure with each of one or more non-FTM-enabled APs to obtain a respective one or more non-FTM-based RTT measurement. The wireless station then calculates a position of the wireless device based on both the one or more FTM-based RTT measurements and the one or more non-FTM-based RTT measurements.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20170367063A1
公开(公告)日：2017-12-21
申请号：US15183462
申请日：2016-06-15
Applicant: QUALCOMM Incorporated
Inventor： Sai Pradeep VENKATRAMAN , Carlos Horacio ALDANA
IPC: H04W56/00 , H04L12/841 , H04W64/00 , H04W84/12
CPC classification number: H04W56/0085 , G01S5/021 , G01S5/0236 , G01S5/0242 , G01S5/0263 , G01S5/0289 , G01S5/14 , H04L43/0864 , H04L47/283 , H04W4/023 , H04W4/025 , H04W24/10 , H04W56/004 , H04W56/006 , H04W64/003 , H04W64/006 , H04W84/12
Abstract: In one aspect, a method includes performing, by a wireless station, a fine timing measurement (FTM) procedure that includes exchanging one or more FTM messages between the wireless station and an access point to obtain a first round-trip time (RTT) between the wireless station and the access point. The method also includes performing, by the wireless station, a non-FTM procedure to obtain a second RTT between the wireless station and the access point. The wireless station then calculates a turn-around calibration factor (TCF) estimate of the access point based on a difference between the second RTT and the first RTT. Data representative of the TCF estimate of the access point may then be sent to a server.
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公开(公告)号：US20170289946A1
公开(公告)日：2017-10-05
申请号：US15185849
申请日：2016-06-17
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio ALDANA
CPC classification number: H04W64/00 , G01S7/40 , G01S13/765 , G01S13/878 , H04L43/0864
Abstract: Techniques for determining a Round Trip Time (RTT) calibration value are disclosed. An example of a method according to the disclosure includes receiving a fine timing measurement (FTM) exchange between an initiating station and a responding station, calculating a plurality of differential round trip time (RTT) measurements based on the FTM exchange, calculating a responding station calibration value based on the plurality of differential RTT measurements, and transmitting the responding station calibration value to the responding station.
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公开(公告)号：US20170238135A1
公开(公告)日：2017-08-17
申请号：US15216586
申请日：2016-07-21
Applicant: QUALCOMM Incorporated
Inventor： Santosh VAMARAJU , Carlos Horacio ALDANA
CPC classification number: H04W4/023 , H04W56/0015
Abstract: Techniques for establishing a fine timing measurement (FTM) session of infinite duration between wireless devices is provided. A method according to these techniques includes generating, at a first wireless device, a first request to establish an FTM session with a second wireless device using an FTM protocol, the first request comprising one or more session parameters having a value indicative that the first wireless device is requesting the FTM session have an infinite session duration, receiving one or more FTM measurement messages from the second wireless device, and sending a second request to the second wireless device requesting that the FTM session be terminated.
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公开(公告)号：US20170223553A1
公开(公告)日：2017-08-03
申请号：US15486582
申请日：2017-04-13
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio ALDANA
IPC: H04W24/02
Abstract: Techniques for providing neighbor reports for use in passive positioning of a client station are disclosed. An example method for broadcasting network neighbor reports according to the disclosure includes generating a beacon transmission, determining a neighbor report count value, if the neighbor report count value is greater than zero, then broadcasting the beacon transmission including at least a beacon frame and the neighbor report count value, and decrementing the neighbor report count value; if the neighbor report count value is equal to zero, then broadcasting the beacon transmission including at least a beacon frame and a neighbor report, and resetting the neighbor count value.
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公开(公告)号：US20170188191A1
公开(公告)日：2017-06-29
申请号：US15080337
申请日：2016-03-24
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio ALDANA , Ning ZHANG , James Simon CHO , Xiaoxin ZHANG
CPC classification number: H04W4/023 , G01S5/021 , G01S5/14 , G01S11/08 , G01S19/48 , H04L27/266 , H04W4/02 , H04W56/0015 , H04W56/0025
Abstract: Disclosed herein are techniques for range measurement between one or more wireless stations (STAs) and a first access point (AP). In various embodiments, the first AP may synchronize a clock of the first AP with clocks of one or more synchronized APs. The first AP may perform a synchronization session with the one or more STAs. The first AP may also transmit one or more Broadcast time-of-departure (TOD) frames to the one or more STAs. Each of the one or more Broadcast TOD frames may include a time of departure of a Broadcast TOD frame from the first AP. A second AP and a third AP of the one or more synchronized APs may also transmit one or more Broadcast TOD frames to the one or more STAs for range and/or position determination.
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