Dynamic selection of positioning system and display map
AssigneeQUALCOMM Incorporated
InventorsSai Pradeep Venkatraman, Weihua Gao, Gengsheng Zhang
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Abstract
Systems, apparatus and methods for determining whether to use an indoor map or an outdoor map based on local area network (LAN) signals from access points (APs) are disclosed. If only weak AP signals belonging to a location content identifier (LCI) are received, prior art systems display an indoor map associated with the LCI. An improvement herein further determines a quality of AP signals and/or wide area network (WAN) signals before determining whether to display the indoor map or an outdoor map.
Claims32
A method in a mobile device for determining a map to be used based on local area network (LAN) signals from access points (APs), the method comprising:
- scanning LAN signals from a plurality of APs, wherein the plurality of APs comprise a first set of APs belonging to a location context identifier (LCI) wherein the LCI comprises an indoor map;
- selecting the first set of APs from the plurality of APs belonging to the LCI;
- performing a threshold test to determine that the first set of APs comprises only APs beyond a threshold;
- and
- displaying an outdoor map with a position estimate of the mobile device based on the first set of APs comprising only APs beyond the threshold belonging to the LCI.
A mobile device for determining a map to be used based on local area network (LAN) signals from access points (APs), the mobile device comprising:
- a transceiver configured to scan LAN signals from a plurality of APs, wherein the plurality of APs comprise a first set of APs belonging to a location context identifier (LCI) wherein the LCI comprises an indoor map;
- a selection unit coupled to the transceiver, the selection unit configured to select the first set of APs from the plurality of APs belonging to the LCI;
- a comparator coupled to the selection unit and a threshold, the comparator configured to determine the first set of APs comprises only APs beyond a threshold;
- and
- a display coupled to the comparator, the indoor map and an outdoor map, the display configured to display the outdoor map with a position estimate of the mobile device based on the first set of APs comprising only APs beyond the threshold belonging to the LCI.
A mobile device for determining a map to be used based on local area network (LAN) signals from access points (APs), the mobile device comprising:
- means for scanning LAN signals from a plurality of APs, wherein the plurality of APs comprise a first set of APs belonging to a location context identifier (LCI) wherein the LCI comprises an indoor map;
- means for selecting the first set of APs from the plurality of APs belonging to the LCI;
- means for performing a threshold test to determine that the first set of APs comprises only APs beyond a threshold;
- and
- means for displaying an outdoor map with a position estimate of the mobile device based on the first set of APs comprising only APs beyond the threshold belonging to the LCI.
A mobile device comprising a processor and a memory for determining a map to be used based on local area network (LAN) signals from access points (APs) wherein the memory includes software instructions for:
- scanning LAN signals from a plurality of APs, wherein the plurality of APs comprise a first set of APs belonging to a location context identifier (LCI) wherein the LCI comprises an indoor map;
- selecting the first set of APs from the plurality of APs belonging to the LCI;
- performing a threshold test to determine that the first set of APs comprises only APs beyond a threshold;
- and
- displaying an outdoor map with a position estimate of the mobile device based on the first set of APs comprising only APs beyond the threshold belonging to the LCI.
A non-volatile computer-readable storage medium including program code stored thereon, comprising program code for:
- scanning, by a mobile device, local area network (LAN) signals from a plurality of APs, wherein the plurality of APs comprise a first set of APs belonging to a location context identifier (LCI) wherein the LCI comprises an indoor map;
- selecting the first set of APs from the plurality of APs belonging to the LCI;
- performing a threshold test to determine that the first set of APs comprises only APs beyond a threshold;
- and
- displaying an outdoor map with a position estimate of the mobile device based on the first set of APs comprising only APs beyond the threshold belonging to the LCI.
Dependencies are inferred from the claim text.