公开(公告)号：US09973949B2

公开(公告)日：2018-05-15

申请号：US15013374

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W24/06 ,  H04L1/16 ,  H04W72/04 ,  H04L12/26 ,  G01S5/12 ,  G01S13/74

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.

公开(公告)号：US09961497B2

公开(公告)日：2018-05-01

申请号：US15216586

申请日：2016-07-21

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana

IPC: H04W24/00 ,  H04W4/02 ,  H04W56/00

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.

公开(公告)号：US09929851B2

公开(公告)日：2018-03-27

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: H04W4/12 ,  H04L5/14 ,  H04L5/00 ,  H04L12/801

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.

公开(公告)号：US09923792B2

公开(公告)日：2018-03-20

申请号：US15281412

申请日：2016-09-30

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/26 ,  H04B7/216 ,  H04W64/00 ,  G01S5/00 ,  G01S13/76 ,  H04W24/00 ,  H04W4/04 ,  H04L5/00 ,  H04W76/02 ,  H04W72/08

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：US09907044B2

公开(公告)日：2018-02-27

申请号：US14837775

申请日：2015-08-27

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/26 ,  H04W64/00 ,  H04L12/841 ,  H04W52/02 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W64/00 ,  H04L5/0055 ,  H04L47/283 ,  H04W24/00 ,  H04W52/0209 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: A ranging operation between a first wireless device and a second wireless may be performed by: sending, to the second wireless device, a data frame including a request for the second wireless device to report its actual SIFS duration to the first wireless device; determining a time of departure (TOD) of the data frame; receiving, from the second wireless device, a response frame including SIFS information indicative of the actual SIFS duration of the second wireless device; determining a time of arrival (TOA) of the response frame; and determining a round trip time (RTT) of the data frame and the response frame using the TOD of the data frame, the TOA of the response frame, and the actual SIFS duration of the second wireless device.

公开(公告)号：US09867004B2

公开(公告)日：2018-01-09

申请号：US15080337

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Ning Zhang ,  James Simon Cho ,  Xiaoxin Zhang

IPC: H04W24/00 ,  H04W4/02 ,  H04W56/00 ,  H04L27/26 ,  G01S5/14

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.

公开(公告)号：US09836613B2

公开(公告)日：2017-12-05

申请号：US14042721

申请日：2013-09-30

Applicant: QUALCOMM Incorporated

Inventor： Stephen William Edge ,  Carlos Horacio Aldana

IPC: H04Q7/10 ,  G06F21/60 ,  H04W64/00 ,  G01S5/02

CPC classification number: G06F21/606 ,  G01S5/0205 ,  G06F2221/2111 ,  H04W64/003

Abstract: Methods and apparatuses are presented for obfuscating the locations of terrestrial wireless transceivers, including wireless access points and femtocells. According to some embodiments, a method may receive, by a mobile device, data for a terrestrial wireless transceiver, wherein the data includes location coordinates of the terrestrial wireless transceiver, and wherein the location coordinates include an error term. Additionally, the method may include determining the error term based on the data. Furthermore, the method may include determining a corrected location of the terrestrial wireless transceiver by removing the error term from the location coordinates. In some instances, the data can further include a unique identifier associated with the terrestrial wireless transceiver, and wherein the error term is further determined based on the unique identifier.

公开(公告)号：US09819750B2

公开(公告)日：2017-11-14

申请号：US14715324

申请日：2015-05-18

Applicant: QUALCOMM Incorporated

Inventor： Alireza Raissinia ,  Santosh Paul Abraham ,  Carlos Horacio Aldana

IPC: H04L29/08 ,  H04L12/24 ,  H04B17/318 ,  H04W4/02 ,  H04W52/38 ,  H04W56/00 ,  H04W8/00 ,  H04W84/20 ,  H04W52/00

CPC classification number: H04L67/16 ,  H04B17/318 ,  H04L41/12 ,  H04W4/023 ,  H04W8/005 ,  H04W52/00 ,  H04W52/383 ,  H04W56/0015 ,  H04W84/20

Abstract: A method includes determining, at a first device of a neighbor aware network (NAN), a proximity of the first device to a second device of the NAN. The method further includes determining whether to change a NAN operating mode of the first device based on the proximity.

公开(公告)号：US20170310570A1

公开(公告)日：2017-10-26

申请号：US15625671

申请日：2017-06-16

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/26 ,  G01S5/00 ,  G01S5/06 ,  H04W64/00

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：US09794906B1

公开(公告)日：2017-10-17

申请号：US15185849

申请日：2016-06-17

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04W64/00 ,  H04L12/26

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.