- 专利标题: FTM protocol with angle of arrival and angle of departure
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申请号: US15013374申请日: 2016-02-02
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公开(公告)号: US09973949B2公开(公告)日: 2018-05-15
- 发明人: Carlos Horacio Aldana , Xiaoxin Zhang
- 申请人: QUALCOMM Incorporated
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理机构: Paradice and Li LLP
- 主分类号: H04W24/06
- IPC分类号: H04W24/06 ; H04L1/16 ; H04W72/04 ; H04L12/26 ; G01S5/12 ; G01S13/74
摘要:
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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