发明名称 Method of estimating the distance between two radio equipments
摘要 The method comprises a phase, applied by the first equipment (A), for estimating a first time of flight between the two equipments (A, Z) corresponding to the signal transmission time to go from one equipment to the other along a propagation path, called the "strongest path", taken by a main part of the energy of the signals, a phase for estimating a difference in time of flight comprising the sending of a channel sounding frame by the first equipment to the second and, from the received radio signals corresponding to said channel sounding frame, estimating a difference in time of flight between the strongest propagation path and a first propagation path, performed by the second equipment, and a phase for calculating the distance between the two equipments (A, Z) comprising the determination of a second time of flight by subtracting the estimated difference in time of flight from the estimated first time of flight (E 30 ) and calculating the distance between the two equipments from the duly determined second time of flight.
申请公布号 US2008146262(A1) 申请公布日期 2008.06.19
申请号 US20070982504 申请日期 2007.11.01
申请人 FRANCE TELECOM 发明人 SCHWOERER JEAN;MISCOPEIN BENOIT
分类号 H04B7/00;G01S5/02 主分类号 H04B7/00
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