- 专利标题： Direction finding positioning in wireless local area networks
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申请号： US15121044申请日： 2015-02-24
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公开(公告)号： US10206122B2公开(公告)日： 2019-02-12
- 发明人: James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
- 申请人： MEDIATEK INC. , James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
- 申请人地址： TW Hsin-Chu
- 专利权人： MEDIATEK INC.
- 当前专利权人： MEDIATEK INC.
- 当前专利权人地址： TW Hsin-Chu
- 代理商 Winston Hsu
- 国际申请： PCT/US2015/017174 WO 20150224
- 国际公布： WO2015/130618 WO 20150903
- 主分类号： H04W16/22
- IPC分类号： H04W16/22 ; G01S3/74 ; G01S3/14 ; G01S5/12 ; G01S1/08 ; H04L5/00 ; H04L29/06 ; H04B7/06 ; H04B17/318 ; G01S5/06 ; H04W4/02 ; G01S5/02 ; H04W24/10 ; H04W64/00 ; H04W4/04 ; H04W84/12
摘要：
A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.