METHOD AND APPARATUS FOR HIERARCHICAL MAP TILING
First Claim
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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;
designating the initial location as a focal point;
retrieving a subset of hierarchical assistance data associated with the area as a function of the focal point; and
generating a multi-level assistance data structure for the area centered at the focal point using retrieved hierarchical assistance data.
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Abstract
A method for processing assistance data associated with positioning of a mobile device as described herein includes estimating an initial location of the mobile device within an area; designating the initial location of the mobile device as a focal point; retrieving a subset of hierarchical assistance data as a function of the focal point; and generating a multi-level assistance data structure for the area centered at the focal point.
8 Citations
30 Claims
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1. A method for processing assistance data associated with positioning of a mobile device, the method comprising:
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estimating an initial location of the mobile device within an area; designating the initial location as a focal point; retrieving a subset of hierarchical assistance data associated with the area as a function of the focal point; and generating a multi-level assistance data structure for the area centered at the focal point using retrieved hierarchical assistance data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobile device operable in a wireless communication network, the mobile device comprising:
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a location estimation module configured to estimate an initial location of the mobile device within an area; an assistance data retrieval module communicatively coupled to the location estimation module and configured to retrieve a subset of hierarchical assistance data associated with the area as a function of the initial location of the mobile device; and an assistance data population module communicatively coupled to the assistance data retrieval module and configured to generate a multi-level assistance data structure for the area centered at the initial location of the mobile device using retrieved hierarchical assistance data. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for processing assistance data associated with a positioning operation, the apparatus comprising:
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means for estimating an initial location of the apparatus within an area; means for retrieving a subset of hierarchical assistance data associated with the area as a function of the initial location; and means for generating a multi-level assistance data structure for the area centered at the initial location using retrieved hierarchical assistance data. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A mobile communications device comprising:
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at least one processor configured to execute instructions which, when executed, cause the at least one processor to; estimate an initial location of the mobile communications device within an area; designate the initial location as a focal point; retrieve a subset of hierarchical assistance data associated with the area as a function of the focal point; and generate a multi-level assistance data structure for the area centered at the focal point using retrieved hierarchical assistance data; and a memory coupled to the at least one processor and configured to store the instructions. - View Dependent Claims (28, 29, 30)
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Specification