Invention Grant
- Patent Title: FTM protocol with angle of arrival and angle of departure
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Application No.: US15013374Application Date: 2016-02-02
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Publication No.: US09973949B2Publication Date: 2018-05-15
- Inventor: Carlos Horacio Aldana , Xiaoxin Zhang
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Paradice and Li LLP
- Main IPC: H04W24/06
- IPC: H04W24/06 ; H04L1/16 ; H04W72/04 ; H04L12/26 ; G01S5/12 ; G01S13/74

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.
Public/Granted literature
- US20160234704A1 FTM PROTOCOL WITH ANGLE OF ARRIVAL AND ANGLE OF DEPARTURE Public/Granted day:2016-08-11
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