Patent ID: 9247379
Filing Date: 2016-01-26
CPC Classification: G01S,H04W

Claim Text:
1. A method for processing assistance data associated with positioning of a mobile device, the method comprising: estimating an initial location of the mobile device within an area; retrieving a subset of hierarchical assistance data associated with the area based on the initial location of the mobile device, wherein a resolution of the retrieved subset of the hierarchical assistance data changes as a function of a distance from the initial location of the mobile device; and generating a multi-level assistance data structure, for the area, centered at the initial location of the mobile device using the retrieved subset of the hierarchical assistance data wherein the hierarchical assistance data comprise a plurality of levels having mutually distinct resolutions, each level of the plurality of levels including assistance data for an arrangement of points within the area defined according to the resolution for the each level.