Abstract: Techniques are provided for providing a processing delay estimate of an access point, or turnaround calibration function (TCF), associated with round trip time (RTT) measurements. Mobile devices, access points, and/or other systems can utilize these techniques to derive processing delay from the RTT measurements. Crowdsourcing can also be used to help increase the accuracy of the processing delay estimate, which can be propagated to multiple devices.

Abstract: Method, device, and computer program product that may improve communications between a mobile device and an access point device are disclosed. In one embodiment, an access point device includes a transceiver configured to receive signals from a mobile device, a processor coupled to the transceiver, and a memory coupled to the processor, the memory having stored thereon code configured to be executed by the processor, the code instructing the processor to: control a plurality of beacons in the access point device, obtain range measurements using the plurality of beacons in the access point device, and assist calibration of a beacon in the mobile device using the range measurements obtained by the plurality of beacons in the access point device.

Abstract: Various methods, apparatuses and articles of manufacture are provided for use by one or more electronic devices to detect and/or respond to certain changes (anomalies) within a wireless signaling environment. For example, a first electronic device may receive a report of a threshold anomaly detected by a monitoring device deployed at a fixed predetermined position within a coverage area of a network service device, and may initiate an investigation by requesting that a second electronic device attempt to monitor certain transmissions of and/or actively communicate with a network service device. In response to a determination based, at least in part, on the investigation that the threshold anomaly represents a threshold change in status within the wireless signaling environment, the first electronic device may transmit a status report regarding the wireless signaling environment to another electronic device.

Abstract: A method for requesting assistance data includes, at a mobile device, determining an expected quality of service information, transmitting a request for assistance data, transmitting the expected quality of service information, and receiving an assistance data file comprising heat map information, wherein the heat map information includes a heat map grid resolution and a suitable quantization precision level for heat map values as determined, at least in part, based on the expected quality of service information.

Abstract: Method, device, and computer program product that may improve communications between a mobile device and an access point device are disclosed. In one embodiment, a method of communicating between a mobile device and an access point device comprises control a plurality of beacons in the access point device, establishing a communication between the access point device with the mobile device using a first beacon in the plurality of beacons, broadcasting availability of the plurality of beacons in the access point device via the first beacon, and establishing the communication with the mobile device using a second beacon in the plurality of beacons.

Abstract: Examples disclosed herein relate to methods and apparatuses for observing signals transmitted by one or more transmitters in an asynchronous communication network and applying a time reference to generate a clock model. In one embodiment, parameters representing the clock model may then be forwarded to other mobile devices to assist in positioning operations.

Abstract: Navigation assistance information for a mobile station is acquired based on a feature descriptor of an image of a visual beacon captured by the mobile station. The navigation assistance information includes locations of neighboring visual beacons, locations of wireless positioning resources; user environmental context information. The navigation assistance information may then be used to assist in navigating within the local environment. The visual beacon may be an artificial feature, such as a QR code or other type of matrix or bar code or a natural feature, such as a statute or architectural detail. The mobile station may request navigation assistance by transmitting the feature descriptor to a server. The server retrieves the navigation assistance information from a database based on the feature descriptor and optionally location information, which may also be provided in the navigation assistance request, and transmits the navigation assistance information to the mobile station.

Abstract: Method and apparatus for controlling crowdsourcing data are disclosed. The method may include comparing a set of access points detected in an area of a wireless environment by the mobile device to a set of known access points for the area, determining a level of crowdsourcing based at least in part on the comparison, where the level of crowdsourcing controls a quantity of crowdsourcing data to be collected, uploaded, or a combination thereof by the mobile device, and performing crowdsourcing, at least in part, in accordance with the determined level of crowdsourcing, where the determined level of crowdsourcing affects a frequency of crowdsourcing operations to be performed by the mobile device, a type of quantization to be applied to crowdsourcing data collected, or some combination thereof.

Abstract: Approaches for enhancing range-based position determination using pairwise error detection and compensation are provided. One method for enhancing a position estimate of a first node may include performing measurements at the first node using a signal received from a second node, and receiving measurements from the second node. The received measurements may be performed at the second node using a signal provided by the first node. The method may further include determining pairwise comparisons of the performed measurements and the received measurements, and compensating the measurements performed at the first node, based on the pairwise comparisons, for estimating the position of the first node. Systems and apparatuses for performing the various position determination methods are further presented.

Abstract: Methods and systems are presented for providing a combined barometric value. In some embodiments, the method includes obtaining, at the serving fixed local transceiver, barometric values of a plurality of client fixed local transceivers, and determining a combined barometric correction value. The method further includes initiating a barometric correction value of the serving fixed local transceiver to the combined barometric correction value, and sending an indication of the barometric correction value to the plurality of client fixed local transceivers. The method further includes receiving a request for the serving fixed local transceiver barometric correction value from a target client fixed local transceiver, and sending the barometric correction value from the serving fixed local transceiver to the target client fixed local transceiver.

Abstract: A method for providing tiered indoor positioning service includes: receiving a request for assistance data from a mobile device; receiving expected quality of service information from the mobile device; generating an adaptive assistance data file comprising heat map data based at least in part on the received expected quality of service information; and transmitting the adaptive assistance data file to the mobile device.

Abstract: Methods and devices for detecting mobile access points are disclosed. In one embodiment, a method of detecting mobile access points comprises collecting crowdsourcing data associated with one or more access point devices, quantizing the crowdsourcing data to generate a quantized crowdsourcing data, for each access point device, determining an interfracile range of the access point device using the quantized crowdsourcing data, where the interfracile range is a measure of statistical dispersion of the quantized crowdsourcing data with respect to the access point device, identifying the access point device as a mobile access point device in response to the interfracile range exceeds a first predetermined range. The method of collecting crowdsourcing data comprises collecting the crowdsourcing data within a predetermined sliding time window.

Abstract: A visual beacon, such as a Quick Response (QR) code or other type of artificial visual beacon is identified based on a coarse position and content information, and optionally, type of the visual beacon. For example, position may be based on latitude and longitude, e.g., from a satellite positioning system, or the CellID from a cellular network. The content information may be based on a sampling of the content before or after decoding. Content information may alternatively be all of the decoded content or an image of the visual beacon. Thus, for example, a mobile platform may generate a visual beacon identifier using the position and content information, which is transmitted to a navigation assistance server. The server can access and transmit to the mobile platform a navigation assistance message associated with the visual beacon identifier. If no visual beacon identifier is found, the server may enter the information.

Abstract: Examples disclosed herein relate to methods and apparatuses for observing signals transmitted by one or more transmitters in an asynchronous communication network and applying a time reference to generate a clock model. In one embodiment, parameters representing the clock model may then be forwarded to other mobile devices to assist in positioning operations.

Abstract: Method and apparatus for performing crowdsourcing are disclosed. The method may include monitoring environment of a mobile device, determining a level of crowdsourcing in accordance with one or more mobile device generated parameters corresponding to the environment, and performing crowdsourcing in accordance with the level of crowdsourcing determined. The level of crowdsourcing comprises one or more of quantity of crowdsourcing data to be collected by the mobile device, frequency of crowdsourcing operations to be performed by the mobile device, and type of quantization to be applied to the crowdsourcing data collected.

Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented by one or more electronic devices to identify potential anomalies in one or more electronic files used to support mobile device positioning within a specific environment. Various methods, apparatuses and/or articles of manufacture are also provided which may be implemented by one or more electronic devices to alter one or more electronic files used to support mobile device positioning within a specific environment.

Abstract: Method, mobile device, computer program product, and apparatus for performing Fine Grain Position Data Collection are described. In one embodiment, a server can receive position data collected by a mobile device with a first positioning configuration. In one embodiment, the server can determine, from the position data received at the server, a mobile device position and create a second positioning configuration according to at least the mobile device position. In one embodiment, the server can send the second positioning configuration to the mobile device. In one embodiment, a mobile device can collect position data according to a first positioning configuration and send the position data to a server. In one embodiment, the mobile device can receive a second positioning configuration from the server created according to at least the mobile device position.

Abstract: In a tracking of a position and motion of a device, a set of hypothetical locations of the device is generated. Hypothetical locations among the set are propagated to respective hypothetical next locations, using respective location-specific propagation models associated with the hypothetical locations. Sensor information having correlation to a location of the device is received. An importance weighting for the hypothetical next locations is calculated using the new sensor information. Probable locations of the device are generated using the importance weighting.

Abstract: Examples disclosed herein may relate to partitioning identity and/or position information for a plurality of wireless transmitters positioned within a geographical region into a plurality of sub-partitions.

Abstract: Method, device, computer program product, and apparatus for performing and processing mobile device positioning are described. A mobile device can request vertical positioning assistance. The mobile device can receive vertical positioning assistance from a transmitter classified for vertical positioning assistance. The mobile device can receive optimized assistance data created in response to a particular positioning request. The optimized assistance data may be optimized for vertical position, horizontal positioning, or both usage types. The mobile device can receive usage type classifications directly from a transmitter. A server can receive and determine a request is a vertical positioning request. Vertical positioning can include determining one or more of: an altitude, floor, level, or any combination thereof, within the environment.