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公开(公告)号：US10893499B2
公开(公告)日：2021-01-12
申请号：US15370977
申请日：2016-12-06
Applicant: QUALCOMM Incorporated
Inventor： Ravi Gidvani , Sudheer Kumar Suryadevara , Carlos Horacio Aldana
Abstract: Disclosed are methods, systems and devices for obtaining a measurement of a range between two devices. For example, wireless stations may obtain a measurement of range between the wireless stations based, at least in part, on an exchange messages such as fine timing measurement (FTM) messages. In a particular implementation, FTM messages may be received at a transceiver device in a burst of FTM messages from a responding wireless station. An acknowledgement messages may be transmitted to the responding wireless station immediately in response to receipt of the FTM message.
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公开(公告)号：US10771999B2
公开(公告)日：2020-09-08
申请号：US16166998
申请日：2018-10-22
Applicant: QUALCOMM Incorporated
Inventor： Amichai Sanderovich , Carlos Horacio Aldana
Abstract: Aspects of the present disclosure provide techniques for efficient ranging. According to certain aspects, techniques are provided to signal the use of different resolutions of time units for parameters to be used in a ranging procedure, such as a fine timing measurement (FTM) procedure.
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公开(公告)号：US10397779B2
公开(公告)日：2019-08-27
申请号：US15270883
申请日：2016-09-20
Applicant: QUALCOMM Incorporated
Inventor： Subash Marri Sridhar , Carlos Horacio Aldana
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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4.发明授权公开(公告)号：US10379196B2
公开(公告)日：2019-08-13
申请号：US15191498
申请日：2016-06-23
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio Aldana , Jeff Smith , Xiaoxin Zhang , Chia-Hui Lin , Yen-Feng Lee , Ravi Gidvani , Alecsander Eitan , Rahul Malik
Abstract: Disclosed embodiments facilitate wireless channel calibration, ranging, and direction finding, between networked devices. A method on a first station (STA) may comprise: broadcasting, at a first time, a first NDPA frame to a plurality of second STAs. The first NDPA frame may include a first bit indicating that one or more subsequent frames comprise ranging or angular information. After a Short Interval Frame Space (SIFS) time interval from the first time, a second frame may be broadcast. The second frame may be a Null Data Packet (NDP) frame. In response, a plurality of Compressed Beamforming (CBF) frames may be received at the first STA where each CBF frame may be received from a distinct corresponding second STA, and may include Channel Feedback Information field with information pertaining to communication channel between the first STA and the corresponding second STA. The communications may be encoded using Orthogonal Frequency Division Multiple Access.
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公开(公告)号：US10349367B2
公开(公告)日：2019-07-09
申请号：US14850459
申请日：2015-09-10
Applicant: QUALCOMM Incorporated
Inventor： Carlos Horacio Aldana
Abstract: Disclosed are methods and systems for synchronizing clocks maintained at different devices in a wireless communication network. A first wireless transceiver device may receive one or more messages from a second wireless transceiver device with parameters indicative of a first clock state. The first wireless transceiver device may then synchronize a second clock state maintained at the first wireless device based, at least in part, on the one or more parameters indicative of the first clock state.
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Patent Agency Ranking
公开(公告)号：US10341979B2
公开(公告)日：2019-07-02
申请号：US15166646
申请日：2016-05-27
Applicant: QUALCOMM Incorporated
Inventor： Santosh Vamaraju , Carlos Horacio Aldana
IPC: H04W64/00 , H04L29/06 , H04W12/06 , G01S5/02 , G01S5/14 , G01S13/76 , G01S13/87 , H04L29/12 , G01S5/00
Abstract: Techniques for exchanging secure FTM messages are disclosed. An example of a wireless transceiver system for providing a secure Fine Timing Measurement (FTM) exchange includes a memory and a processor configured to obtain a initial-secure-token value and a secure-token-response value via an out-of-band signal, generate a FTM Request message including the initial-secure-token value, a transmitter to send the FTM Request message to a responding station, and a receiver to receive a FTM Response message including the secure-token-response value from the responding station, such that the at least one processor is configured to determine a Round Trip Time (RTT) value based at least in part on the FTM Response message.
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公开(公告)号：US10334422B2
公开(公告)日：2019-06-25
申请号：US15172088
申请日：2016-06-02
Applicant: QUALCOMM Incorporated
Inventor： Santosh Paul Abraham , Alireza Raissinia , Carlos Horacio Aldana , Abhishek Pramod Patil , George Cherian
Abstract: Methods and apparatus for wireless communication in a peer-to-peer network are described herein. In one aspect, a method of wireless communication apparatus is provided. The method includes transmitting during a discovery window, by a first device, a first service discovery frame (SDF) or other action frame to a second device, the first SDF or other action frame comprising ranging information for performing a ranging protocol. The method further includes performing the ranging protocol, by the first device, in accordance with the ranging information.
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公开(公告)号：US10187817B2
公开(公告)日：2019-01-22
申请号：US15088108
申请日：2016-03-31
Applicant: QUALCOMM Incorporated
Inventor： Amichai Sanderovich , Carlos Horacio Aldana
Abstract: Aspects of the present disclosure provide techniques for efficient ranging. According to certain aspects, techniques are provided to signal the use of different resolutions of time units for parameters to be used in a ranging procedure, such as a fine timing measurement (FTM) procedure.
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9.发明授权公开(公告)号：US10104635B2
公开(公告)日：2018-10-16
申请号：US15257824
申请日：2016-09-06
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Ravi Hiranand Gidvani , Carlos Horacio Aldana
Abstract: Disclosed embodiments pertain to a first STA may broadcast a first Null Data Packet Announcement (NDPA) frame with an indication of one or more second STAs being polled. Subsequent to the first NDPA frame, a Null Data Packet (NDP) frame may be broadcast from a plurality of antennas on the first STA and one or more corresponding first Fine Timing Measurement (FTM) frames may be received in response. Each corresponding first FTM frame may be received from a distinct corresponding second STA and may comprise corresponding ranging measurements between the first STA and the corresponding second STA as determined by the corresponding second STA based on the NDP frame. In some embodiments, the one or more corresponding first FTM frames may be: received in response to a previously broadcast trigger frame, and encoded using Orthogonal Frequency Division Multiple Access. The trigger frame may be broadcast subsequent to the NDP frame.
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公开(公告)号：US10039075B2
公开(公告)日：2018-07-31
申请号：US15887137
申请日：2018-02-02
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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