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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
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.
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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
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.
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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
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.
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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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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
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.
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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
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.
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49.发明申请公开(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
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.
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公开(公告)号：US20160249165A1
公开(公告)日：2016-08-25
申请号：US14832900
申请日：2015-08-21
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio Aldana
CPC classification number: H04W4/023 , G01S5/14 , G01S13/765 , G01S19/12 , H04L27/2656 , H04L27/2665 , H04W56/0065 , H04W64/00
Abstract: Disclosed are methods and systems for obtaining measurements of a range between devices based on a Round Trip Time (RTT) for an exchange messages. In particular, described are techniques for sharing channel parameters between or among wireless transceiver devices to assist in initiating exchange of signals between neighboring wireless transceiver devices.
Abstract translation: 公开了用于基于用于交换消息的往返时间（RTT）来获得设备之间的范围的测量的方法和系统。 具体地，描述了用于在无线收发器设备之间或之间共享信道参数以辅助在相邻无线收发器设备之间发起信号交换的技术。
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