发明名称 USE OF THIRD PARTY ULTRA WIDEBAND DEVICES TO ESTABLISH GEO-POSITIONAL DATA
摘要 <p>A system, method and article of manufacture are provided for determining a location of a wireless device in a wireless communication system. In one embodiment of the present invention, an initial request is transmitted to wireless devices having known locations for positioning information so that a location can be determined for a first wireless device having an undetermined location. Those wireless devices with known locations that receive the initial request in turn transmit positioning information to the first wireless device. If positioning information from less than a sufficient number of wireless devices with known locations is received by the first mobile wireless device, an additional request is then transmitted to other wireless devices. After responses to the request from one or more of these other wireless devices are received, communication then occurs with at least a portion of the responding wireless devices to obtain information relating to the distance between the first wireless device and the responding wireless devices. A location of the first wireless device is then estimated using the information obtained from the responding wireless devices.</p>
申请公布号 EP1350399(A1) 申请公布日期 2003.10.08
申请号 EP20010990210 申请日期 2001.12.13
申请人 PULSE-LINK, INCORPORATED 发明人 SANTHOFF, JOHN, H.;ARRIETA, RODOLFO, T.
分类号 G01S5/02;G01S5/14;G01S13/87;G01S19/13;G01S19/35;G01S19/49;H04B1/10;H04B17/00;H04L1/08;H04L1/18;H04L1/20;H04W64/00;(IPC1-7):G01S13/87 主分类号 G01S5/02
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