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公开(公告)号：KR20180072866A
公开(公告)日：2018-06-29
申请号：KR20187017572
申请日：2016-11-02
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG NING , CHO JAMES SIMON , ZHANG XIAOXIN
CPC classification number: H04W4/023 , G01S5/021 , G01S5/14 , G01S11/08 , G01S19/48 , H04L27/266 , H04W4/02 , H04W56/0015 , H04W56/0025
Abstract: 하나이상의무선스테이션들(STA들)과제1 액세스포인트(AP) 사이의레인지측정을위한기술들이본원에개시된다. 다양한실시예들에서, 제1 AP는제1 AP의클럭을하나이상의동기화된 AP들의클럭들과동기화시킬수 있다. 제1 AP는하나이상의 STA들과의동기화세션을수행할수 있다. 제1 AP는또한하나이상의브로드캐스트 TOD(time-of-departure) 프레임들을하나이상의 STA들에송신할수 있다. 하나이상의브로드캐스트 TOD 프레임들각각은제1 AP로부터브로드캐스트 TOD 프레임의출발시간을포함할수 있다. 하나이상의동기화된 AP들의제2 AP 및제3 AP는또한레인지및/또는위치결정을위해하나이상의 STA들에하나이상의브로드캐스트 TOD 프레임들을송신할수 있다.
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公开(公告)号：HUE045136T2
公开(公告)日：2019-12-30
申请号：HUE16706284
申请日：2016-02-03
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG XIAOXIN
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公开(公告)号：AU2016218293A1
公开(公告)日：2017-07-20
申请号：AU2016218293
申请日：2016-02-03
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG XIAOXIN
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.
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公开(公告)号：ES2828639T3
公开(公告)日：2021-05-27
申请号：ES14737067
申请日：2014-05-29
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , HOMCHAUDHURI SANDIP , HE XIN , ZHANG XIAOXIN , SHUKLA ASHISH KUMAR
Abstract: Un procedimiento (550) que comprende, en un primer dispositivo transceptor inalámbrico: transmitir (552) un mensaje de solicitud de medición de temporización fina a un segundo dispositivo transceptor inalámbrico, comprendiendo el mensaje de solicitud de medición de temporización fina al menos un campo que especifica uno o más aspectos de temporización para la transmisión de una pluralidad de mensajes de medición de temporización fina en una ráfaga de mensajes de medición de temporización fina solicitados para su transmisión desde el segundo transceptor inalámbrico en respuesta a la recepción del mensaje de solicitud de medición de temporización fina en el segundo dispositivo transceptor inalámbrico, en el que un campo del al menos un campo especifica una duración de tiempo mínima entre la transmisión de mensajes de medición de temporización fina consecutivos de la pluralidad de mensajes de medición de temporización fina en dicha ráfaga de mensajes de medición de temporización fina.
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公开(公告)号：AU2015318304A1
公开(公告)日：2017-03-02
申请号：AU2015318304
申请日：2015-08-28
Applicant: QUALCOMM INC
Inventor： ZHANG XIAOXIN , ZHANG NING , ALDANA CARLOS HORACIO , KIM YOUHAN , DUA PRAVEEN , AGRAWAL MEGHNA
Abstract: A ranging operation between a first wireless device D1 and a second wireless D2 is performed by: sending (504), 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 (505) a time of departure (TOD) of the data frame; receiving (516), from the second wireless device, a response frame including SIFS information indicative of the actual SIFS duration of the second wireless device; determining (518) a time of arrival (TOA) of the response frame; and determining (522) 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. 501). Device D2 determines (508) the TOA of the received frame by capturing a time stamp, creates a response frame and determines (510) the TOD of the response frame, determines (512) ist actual SIFS duration, and embeds (514) the SIFS information into the response frame. The response frame is preferably an acknowledgement frame (ACK). Wireless devices D1 and D2 preferably include an SIFS database that stores a number of previously determined SIFS durations for the wireless device, one or more median SIFS durations for wireless device, and/or whether other wireless devices support ranging operations in accordance with the example embodiments. The exchange of ranging capabilities informs each of wireless devices D1 and D2 whether the other one supports capturing timestamps and/or is able to determine its own SIFS duration. In this manner, the ranging operations may be performed without estimating the SIFS duration of the second wireless device, thereby eliminating ranging errors resulting from uncertainties in the SIFS duration of the second wireless device.
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Patent Agency Ranking
公开(公告)号：ES2788167T3
公开(公告)日：2020-10-20
申请号：ES16801905
申请日：2016-11-02
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG NING , CHO JAMES SIMON , ZHANG XIAOXIN
Abstract: Un procedimiento de medición de alcance entre una o más estaciones inalámbricas, STA, y un primer punto de acceso, AP, el procedimiento que comprende: sincronizar un reloj del primer AP con relojes de uno o más AP sincronizados; realizar, mediante el primer AP, una sesión de sincronización con las una o más STA; y emitir, mediante el primer AP a las una o más STA, una o más tramas de difusión de tiempo de salida, TOD, cada una de las tramas de difusión de TOD que incluye un tiempo de salida de una trama de difusión de TOD desde el primer AP.
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公开(公告)号：ES2755681T3
公开(公告)日：2020-04-23
申请号：ES16706283
申请日：2016-02-03
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG XIAOXIN
Abstract: Un procedimiento (510) para realizar una operación de alcance entre un primer dispositivo (D1) y un segundo dispositivo (D2), siendo realizado el procedimiento por uno o más procesadores (230) del primer dispositivo (D1) y que comprende: transmitir (516) una primera trama de medición de temporización fina, FTM, al segundo dispositivo (D2); registrar (516) una hora de salida, TOD, de la primera trama FTM; recibir (519) una trama de acuse de recibo, ACK desde el segundo dispositivo (D2); registrar (519) una hora de llegada, TOA de la trama ACK; y transmitir (520) una segunda trama FTM al segundo dispositivo (D2), comprendiendo la segunda trama FTM: un valor de tiempo que indica una diferencia entre la TOD de la primera trama FTM y la TOA de la trama ACK; e información de ángulo que indica una dirección del segundo dispositivo (D2) con respecto al primer dispositivo (D1).
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公开(公告)号：AU2016218294A1
公开(公告)日：2017-07-20
申请号：AU2016218294
申请日：2016-02-03
Applicant: QUALCOMM INC
Inventor： ALDANA CARLOS HORACIO , ZHANG XIAOXIN
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.
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公开(公告)号：IN2957CHN2014A
公开(公告)日：2015-07-03
申请号：IN2957CHN2014
申请日：2014-04-17
Applicant: QUALCOMM INC
Inventor： ZHANG XIAOXIN , ZHANG NING
IPC: H04W64/00
Abstract: A TOA positioning system can be implemented that employs a calculated initial location of a wireless network device. For each of a plurality of reference wireless network devices a distance between the wireless network device and the reference wireless network device is determined based at least in part on a round trip transit time between the wireless network device and the reference wireless network device. An initial location of the wireless network device can be calculated based at least in part on a location of each of the plurality of reference wireless network devices. A location of the wireless network device can be estimated based at least in part on the calculated initial location the distance to each of the reference wireless network devices and an initial distance calibration constant.
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公开(公告)号：IN2129CHN2014A
公开(公告)日：2015-05-29
申请号：IN2129CHN2014
申请日：2014-03-19
Applicant: QUALCOMM INC
Inventor： ZHANG XIAOXIN , ZHANG NING
Abstract: A TOA positioning system can be implemented to improve location estimation of a wireless network device. A first subset of a plurality of reference wireless network devices for determining potential locations of the wireless network device and a second subset of the plurality of reference wireless network devices for determining an estimated location of the wireless network device can be selected. The first and the second subsets can be selected based on a plurality of distance measurements and an average distance and associated with each of the plurality of reference wireless network devices. The potential locations of the wireless network device can be determined based on the first subset of the plurality of reference wireless network devices. The estimated location of the wireless network device can be determined from the potential locations of the wireless network device based on the second subset of the plurality of reference wireless network devices.
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