A method and apparatus for calculating a location of a device is provided. A likelihood of the device being located at a particular location point or a particular location floor is determined using a likelihood calculation at each of a plurality of locations. The location point or location floor is then identified as that location having an associated highest likelihood calculation. The likelihood calculation includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor.
申请公布号
WO2008016781(A3)
申请公布日期
2008.12.11
申请号
WO2007US73759
申请日期
2007.07.18
申请人
MOTOROLA, INC.;RUDRAVARAM, PAVAN, K.;GOLDBERG, KEITH, J.;STRUTT, GUENAEL, T.
发明人
RUDRAVARAM, PAVAN, K.;GOLDBERG, KEITH, J.;STRUTT, GUENAEL, T.