发明名称 Power saving mobile communication devices
摘要 A method and apparatus are provided for determining the location of a mobile communication device. The location is derived using a location deriving system. The velocity is then derived, preferably using a Doppler shift measured on signals included in the system in which the mobile device operates. A new location is then derived from the original location and the velocity signal. By reducing the amount of location readings taken, battery power is conserved.
申请公布号 GB2409950(B) 申请公布日期 2006.04.26
申请号 GB20040000261 申请日期 2004.01.07
申请人 NEC TECHNOLOGIES 发明人 RICHARD ORMSON
分类号 G01C21/16;G01S11/10;H04W52/02;H04W64/00 主分类号 G01C21/16
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