公开(公告)号：US11218980B2

公开(公告)日：2022-01-04

申请号：US16019910

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana

IPC: H04W56/00 ,  G01S13/76 ,  G01S5/00 ,  G01S5/02

Abstract: Disclosed are systems, devices and methods for transmission of messages between wireless transceiver devices including fields representing values such as, for example, a range between devices, time of transmission of a message or time of receipt of a previous message. In particular embodiments, message may also comprise fields to express a maximum error in values representing range, time of transmission of a message or time of receipt of a previous message.

公开(公告)号：US10302738B2

公开(公告)日：2019-05-28

申请号：US15369072

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana

IPC: H04W56/00 ,  G01S5/14 ,  H04W4/02 ,  G01S5/00 ,  G01S5/06 ,  H04W52/02 ,  H04W28/06 ,  H04W64/00

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：US10182360B2

公开(公告)日：2019-01-15

申请号：US16045528

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

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

Abstract: Apparatuses and methods are disclosed for performing ranging operations between an initiator device and a responder device. The initiator device may transmit, to the responder device, a fine timing measurement (FTM) request frame including a request to estimate angle information for a number of frames exchanged between the initiator device and the responder device and indicating a level of accuracy for the estimated angle information. The initiator device may receive a first FTM frame from the responder device, and may transmit an acknowledgement (ACK) frame to the responder device. The initiator device may receive, from the responder device, a second FTM frame including angle information of the first FTM frame and timing information of one or more of the exchanged frames.

公开(公告)号：US10142781B2

公开(公告)日：2018-11-27

申请号：US15370502

申请日：2016-12-06

Applicant: QUALCOMM Incorporated

Inventor： Santosh Vamaraju ,  Carlos Horacio Aldana ,  Xiaoxin Zhang ,  Ravi Gidvani ,  Erik David Lindskog

IPC: H04W4/02 ,  H04L5/00 ,  H04W4/20 ,  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. In one implementation, an initial FTM request message may be transmitted from a first wireless transceiver device to a second wireless transceiver device comprising one or more parameters indicative of a request for transmission of FTM messages in a particular format.

公开(公告)号：US10121014B2

公开(公告)日：2018-11-06

申请号：US15808709

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Stephen William Edge ,  Carlos Horacio Aldana

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

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：US10064077B2

公开(公告)日：2018-08-28

申请号：US15875807

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Xiaoxin Zhang

IPC: H04W24/06 ,  H04W72/04 ,  G01S13/74 ,  G01S5/12 ,  H04L12/26 ,  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 for performing ranging operations between a first device and a second device. The first device may receive, from the second device, a fine timing measurement (FTM) request frame including a request to estimate angle information for a number of frames exchanged with the second device and indicating a level of accuracy for the estimated angle information. The first device may transmit a first FTM frame to the second device, may receive an acknowledgement (ACK) frame from the second device, and may transmit, to the second device, a second FTM frame including angle information of the first FTM frame and timing information of one or more of the exchanged frames.

公开(公告)号：US10057832B2

公开(公告)日：2018-08-21

申请号：US15048003

申请日：2016-02-19

Applicant: QUALCOMM Incorporated

Inventor： Ning Zhang ,  Xiaoxin Zhang ,  Carlos Horacio Aldana ,  Youhan Kim

IPC: H04J3/06 ,  H04W40/02 ,  H04L5/00 ,  H04L27/26 ,  H04W64/00 ,  H04W84/12

CPC classification number: H04W40/02 ,  H04L5/0055 ,  H04L27/2601 ,  H04W64/00 ,  H04W84/12

Abstract: Apparatuses and methods are disclosed that may perform ranging operations between a first device and a second device. The second device transmits an FTM request frame indicating a number of supported non-legacy ACK frame formats, and receives a first FTM frame indicating capabilities of the first device to receive each of the non-legacy ACK frame formats supported by the second device. The second device selects one of the non-legacy ACK frame formats or a legacy ACK frame format based, at least in part, on the indicated capabilities of the first device, and then transmits ACK frames using the selected frame format during the ranging operation.

公开(公告)号：US20170150354A1

公开(公告)日：2017-05-25

申请号：US15270883

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Subash Marri Sridhar ,  Carlos Horacio Aldana

IPC: H04W12/06 ,  H04L5/00 ,  H04W76/02 ,  H04L29/12

CPC classification number: H04W12/06 ,  H04L61/2038 ,  H04L61/2092 ,  H04L61/6004 ,  H04L61/6022 ,  H04W76/11

Abstract: Techniques disclosed herein are generally directed toward providing at least one security feature for an FTM session. More specifically, an initiating STA can include a security feature in an initial FTM request (iFTMR), determine whether a received FTM frame contains information responsive to the at least one security feature, and complete the FTM session accordingly (including terminating the FTM session if the FTM frame does not contain correct information responsive to the at least one security feature). Embodiments may include a security feature such as nonce values and/or generated (or partially-generated) media access control (MAC) addresses.

公开(公告)号：US20170134900A1

公开(公告)日：2017-05-11

申请号：US15346482

申请日：2016-11-08

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Carlos Horacio Aldana

IPC: H04W4/02 ,  G01S3/74 ,  H04L5/00 ,  G01S3/72 ,  H04B7/06 ,  H04B17/27

CPC classification number: H04W4/023 ,  G01S3/72 ,  G01S3/74 ,  H01Q3/2605 ,  H04B7/0682 ,  H04B17/27 ,  H04L1/0086 ,  H04L5/0044 ,  H04L5/0053

Abstract: Aspects of the present disclosure may compensate for cyclic shift delays (CSD) in transmitted signals when estimating angle of arrival information of a wireless signal transmitted by a transmitting device. In some aspects, a receiving device may determine a presence of CSD in the wireless signal, and estimate an angle of arrival of the wireless signal based at least in part on the presence of CSD. For example, the receiving device may determine a first tap of the wireless channel based at least in part on the CSD. The receiving device may then determine a phase difference of the wireless signal between a plurality of antennas of the receiving device based on the first tap of the wireless channel. The receiving device may estimate the angle of arrival of the wireless signal based on the phase difference.

公开(公告)号：US20170131381A1

公开(公告)日：2017-05-11

申请号：US15346529

申请日：2016-11-08

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Carlos Horacio Aldana

IPC: G01S3/50 ,  H04W64/00

CPC classification number: G01S3/50 ,  H04W64/006 ,  H04W84/12

Abstract: Aspects of the present disclosure may compensate for movements of a transmitting device when estimating angular information of wireless signals transmitted by the transmitting device. In some aspects, a receiving device may detect a movement of the transmitting device, and determine the angular information of the wireless signals based at least in part on the movement of the transmitting device. The wireless signals may include a first signal received at a first time and a second signal received at a second time, and the angular information may be determined based on the movement of the transmitting device from the first time to the second time. For example, the receiving device may determine the angular information based on the first signal, and may adjust the angular information based on the second signal if the movement of the transmitting device exceeds a threshold distance.