US Patent No. 10,694,581

TECHNIQUES FOR DETERMINING VICINITY INFORMATION FOR ACCESS POINTS USING LOCATION ASSISTANCE DATA


Patent No. 10,694,581
Issue Date June 23, 2020
Title Techniques For Determining Vicinity Information For Access Points Using Location Assistance Data
Inventorship Stephen William Edge, Escondido, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,694,581

1. A method for obtaining assistance data corresponding to a plurality of access points (APs) at a mobile device, comprising:receiving, at the mobile device, first assistance data from a location server, wherein the first assistance data comprises a first group data that is common among the plurality of APs, wherein the first group data is associated with a first group identifier (ID), the group ID, assigned to each AP of the plurality of APs, and wherein the first group data comprises information corresponding to a reference grid that is used in determining AP-specific information corresponding to each of the plurality of APs;
receiving, at the mobile device, the first group ID and a set of AP-specific information for at least one AP among the plurality of APs; and
determining, by the mobile device, AP vicinity information corresponding to the at least one AP based on the first group ID and the set of AP-specific information, the AP vicinity information indicating a plurality of locations relative to the at least one AP; and
receiving, at the mobile device, second assistance data corresponding to a second plurality of APs, wherein the second assistance data comprises a second group data that is common among the second plurality of APs, the second group data being associated with a second group ID, and the second plurality of APs comprising at least one of the APs in the plurality of APs, wherein the second group data comprises information corresponding to a second reference grid, wherein the second reference grid is used in determining the set of AP-specific information.