METHOD AND APPARATUS FOR MANAGING POSITIONING ASSISTANCE DATA

摘要

Systems and methods for managing positioning assistance data for large regions are described herein. An example of a method for retrieving positioning assistance data at a mobile device as described herein includes identifying a master region in which the mobile device is located and sub-region definitions associated with the master region, where the sub-region definitions are indicative of area occupied by the sub-regions within the master region; obtaining a first estimated position of the mobile device within the master region; defining a projected area centered at the first estimated position; and obtaining first assistance data corresponding to at least one sub-region that overlaps the projected area.

主权项

1. A method for managing positioning assistance data, the method comprising:
obtaining assistance data relating to a master region, the assistance data comprising information relating to a set of nodes within the master region; determining whether either a total size of the assistance data exceeds a mobile device operating capacity or a total count of nodes in the set of nodes exceeds an upper-bound number of nodes; and in response to determining that either the total size of the assistance data exceeds the mobile device operating capacity or the total count of nodes in the set of nodes exceeds the upper-bound number of nodes, dividing the master region into a plurality of sub-regions according to one or more criteria.