公开(公告)号：US10064057B2

公开(公告)日：2018-08-28

申请号：US15333551

申请日：2016-10-25

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Alireza Raissinia ,  Santosh Vamaraju ,  Kumar Anand

IPC: H04M3/16 ,  H04W12/06 ,  H04W64/00 ,  H04W24/10 ,  H04W12/04 ,  H04W12/08 ,  H04W4/02 ,  G01S5/02 ,  H04W84/12

CPC classification number: H04W12/06 ,  G01S5/0205 ,  G01S5/0289 ,  G01S5/14 ,  H04L63/0428 ,  H04W4/023 ,  H04W12/00503 ,  H04W12/04 ,  H04W12/08 ,  H04W24/10 ,  H04W64/00 ,  H04W84/12

Abstract: Techniques for providing a secure Fine Timing Measurement (FTM) exchange between two wireless transceivers are disclosed. An example of a method according to the disclosure include transmitting a protected FTM range request message with a Dialog Token of a FTM frame, receiving a protected FTM range report message from a station, wherein the protected FTM range report message includes FTM information, and authenticating the station based at least in part on the FTM information included in the protected FTM range report message.

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：US20170230969A1

公开(公告)日：2017-08-10

申请号：US15186295

申请日：2016-06-17

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Santosh Vamaraju ,  Olaf Hirsch

IPC: H04W72/04 ,  H04W4/00 ,  H04W64/00 ,  H04W24/10

CPC classification number: H04W72/0446 ,  G01S5/0205 ,  G01S11/02 ,  H04W4/70 ,  H04W24/10 ,  H04W64/00 ,  H04W64/003 ,  H04W88/08

Abstract: Disclosed are processes, devices and systems for exchanging messages between devices in support of measuring ranges between devices. In one particular implementation, a first wireless transceiver device may transmit one or more fine timing measurement (FTM) messages to a second wireless transceiver device, and receive a message acknowledging receipt of at least one of the one or more FTM messages. The first wireless transceiver device may authenticate the received message as being transmitted from the second wireless transceiver device.

公开(公告)号：US20170142608A1

公开(公告)日：2017-05-18

申请号：US15348851

申请日：2016-11-10

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana

IPC: H04W24/10 ,  H04W76/02

CPC classification number: H04W24/10 ,  G01S5/145 ,  G01S13/767 ,  H04W4/023 ,  H04W64/00 ,  H04W76/10

Abstract: Disclosed are methods, systems and devices for obtaining a range between devices based, at least in part, on an exchange of wireless messages. For example, wireless devices may obtain measurements of range based, at least in part, on an exchange fine timing measurement (FTM) messages. In one implementation, an initiating wireless station may transmit an initial FTM request message comprising one or more fields to a responding wireless station specifying an indefinite duration for a requested session to transmit FTM messages to the initiating wireless station.

公开(公告)号：US10582469B2

公开(公告)日：2020-03-03

申请号：US15353291

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju

IPC: H04W48/10 ,  H04W84/12 ,  H04L12/26 ,  H04W64/00 ,  H04B17/318 ,  H04W8/24

Abstract: Disclosed are techniques for performing ranging operations between an access point and an unassociated mobile device. The techniques can include receiving, at an access point, a broadcast probe request from a mobile device unassociated with the access point. In response to receiving the probe request, it can be determined that the mobile device is capable of performing ranging operations including inspecting the received broadcast probe request. The access point can send a ranging request to the mobile device.

公开(公告)号：US09907047B1

公开(公告)日：2018-02-27

申请号：US15354955

申请日：2016-11-17

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Xiaoxin Zhang ,  Rahul Malik

IPC: H04W64/00 ,  G01S5/10 ,  H04W4/02 ,  H04W24/10 ,  H04L12/26

CPC classification number: H04W64/003 ,  H04L43/0864 ,  H04W4/023 ,  H04W24/10 ,  H04W64/00

Abstract: Techniques for estimating a position of an observing station are disclosed based on capturing, at the observing station, a first and a second FTM message exchanged between a first messaging station and a second messaging station. At the observing station, a first time of arrival of the first FTM message and a second time of arrival of the second FTM message may be determined. Based on contents of one or more FTM messages, a first transmission-related time associated with the first FTM message and a second transmission-related time associated with the second FTM message may be obtained. The position of the observing station may be estimated based on (1) a position of the first messaging station, (2) a position of the second messaging station, (3) the first time of arrival, (4) the second time of arrival, (5) the first transmission-related time, and (6) the second transmission-related time.

公开(公告)号：US20180007651A1

公开(公告)日：2018-01-04

申请号：US15353291

申请日：2016-11-16

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju

IPC: H04W64/00 ,  H04B17/318 ,  H04L12/26 ,  H04W8/24 ,  H04W48/10 ,  H04W84/12

Abstract: Disclosed are techniques for performing ranging operations between an access point and an unassociated mobile device. The techniques can include receiving, at an access point, a broadcast probe request from a mobile device unassociated with the access point. In response to receiving the probe request, it can be determined that the mobile device is capable of performing ranging operations including inspecting the received broadcast probe request. The access point can send a ranging request to the mobile device.

公开(公告)号：US20170248682A1

公开(公告)日：2017-08-31

申请号：US15369072

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana

IPC: G01S5/14 ,  G01S5/00 ,  G01S5/06 ,  H04W4/02

CPC classification number: G01S5/14 ,  G01S5/0027 ,  G01S5/06 ,  H04W4/02 ,  H04W28/06 ,  H04W52/0209 ,  H04W52/0216 ,  H04W52/0229 ,  H04W64/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/26

Abstract: Disclosed are methods, systems and devices for obtaining a range between devices based, at least in part, on an exchange of wireless messages. For example, wireless devices may obtain measurements of range based, at least in part, on an exchange fine timing measurement (FTM) messages. In one implementation, a subsequent FTM message transmitted in response to an FTM request message may comprise at least one field indicating a time of transmission of a previous FTM message and a time of receipt of an acknowledgement message transmitted in response to the previous FTM message.

公开(公告)号：US20170171833A1

公开(公告)日：2017-06-15

申请号：US15373560

申请日：2016-12-09

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Hoonki Lee ,  Carlos Horacio Aldana ,  Ravi Gidvani

IPC: H04W60/04 ,  H04W48/20 ,  H04W36/30 ,  H04W36/00 ,  H04W8/14

CPC classification number: H04W60/04 ,  H04W8/14 ,  H04W36/0094 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20

Abstract: This disclosure provides systems, methods and apparatus for establishing and maintaining network connections based on ranging information. In one aspect, a wireless device is configured to identify one or more candidate access points (APs) within a vicinity of the wireless device, and exchange fine timing measurement (FTM) frames with candidate APs to determine respective distances between the wireless device and each of the candidate APs. In some aspects, the exchange of FTM frames may be performed when the wireless device is not associated with any AP. In some other aspects, the exchange of FTM frames may be performed when the wireless device is already associated with an existing AP, for example, to determine whether a roaming condition is satisfied. The wireless device then selects one of the candidate APs, based at least in part on the FTM frames, and associates with the selected candidate AP.

公开(公告)号：US20170134978A1

公开(公告)日：2017-05-11

申请号：US15342992

申请日：2016-11-03

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04W64/00 ,  H04W88/02

Abstract: Disclosed are methods, systems and devices for obtaining a range between devices based, at least in part, on an exchange of wireless messages. For example, wireless devices may obtain measurements of range based, at least in part, on an exchange fine timing measurement (FTM) messages during sessions. In one implementation, an initiating wireless station may transmit an initial FTM request message to a responding wireless station wherein the initial FTM request message comprising one or more fields indicating a capability of the initiating STA to generate Range Reports.