发明名称 Two stage mobile device geographic location determination
摘要 A system and method for mitigating the delay associated with using GPS technologies to determine the location of a mobile device. The system utilizes a two-stage location determination process. During the first stage, an estimated position of the mobile device is immediately provided based on the most accurate stored location information that is available to the system. If greater accuracy is still required, during the second stage a more accurate position of the mobile device is provided using GPS-based technologies.
申请公布号 US8369266(B2) 申请公布日期 2013.02.05
申请号 US20070446453 申请日期 2007.10.22
申请人 T-MOBILE USA, INC.;JIN ZHENGYI;ANNAMALAI MAGESH 发明人 JIN ZHENGYI;ANNAMALAI MAGESH
分类号 H04L12/66;H04W4/02;H04W60/00;H04W74/00;H04W88/06 主分类号 H04L12/66
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