Methods, systems, computer-readable media, and apparatuses for determining a position indicator are presented. In some embodiments, position data indicating a position of a mobile device is obtained. A position indicator is determined based on at least one region of a map. The position of the mobile device is located within the at least one region. The position indicator indicates a map-feature-dependent region of the map. The position indicator is provided.

In one embodiment, a device in a network receives a radio frequency (RF) beacon. The device determines a received signal strength indication (RSSI) of the received RF beacon. The device compares the determined RSSI to an RSSI threshold. The device sends a burst of ultrasound or infrared beacons when the determined RSSI of the RF beacon exceeds the RSSI threshold. The burst of ultrasound or infrared beacons is then used by a location service in the network to determine a physical location of the device.

In one embodiment, a device in a network receives a radio frequency (RF) beacon. The device determines a received signal strength indication (RSSI) of the received RF beacon. The device compares the determined RSSI to an RSSI threshold. The device sends a burst of ultrasound or infrared beacons when the determined RSSI of the RF beacon exceeds the RSSI threshold. The burst of ultrasound or infrared beacons is then used by a location service in the network to determine a physical location of the device.

Disclosed is a sensor enabled object. Beacons may be placed at fixed locations within an environment. The movement of the sensor enabled object can be tracked throughout the environment by analyzing received signals. The relative distances from the known positions of the beacons can be used in order to orient the sensor enabled object within the environment. Alternatively, the sensor enabled objects can be used to determine the relative positions of mobile objects by measuring the respective distances from each other and correlating the relationships.

In some implementations, a mobile device may receive, from a server, a set of priority lists for localization of the mobile device, where the set of priority lists comprises, for each context of a plurality of contexts, a corresponding prioritized list of localization methods for the mobile device to use, during a journey, for a respective context. The mobile device may determine an applicable context from the plurality of contexts based on a course location of the mobile device along the journey. The mobile device may perform localization method in accordance with a priority list, from the set of priority lists, corresponding to the applicable context.

It is proposed to provide a system for localizing a vehicle in a marked environment, provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker's known geographical position. The system comprises a distance detection unit and a processing unit provided in the vehicle, the processing unit adapted to receive said position signal of a respective marker. The processing unit is adapted to receive said known geographical position from the position signal of said respective marker; and to estimate a first distance measure of the vehicle relative to the respective marker based on a position signal measurement. The processing unit feeds said estimated first distance measure to the distance detection unit; the distance detection unit being adapted to detect said marker within the first distance measure by a second distance measure. The distance detection unit is further adapted to provide the processing unit with the second distance measure of the vehicle relative to the detected marker and with a detection angle of the detected marker; and the localization unit calculating an instantaneous geographical position of said vehicle from the second distance measure; the detection angle and the marker's known geographical position.

It is proposed to provide a system for localizing a vehicle in a marked environment, provided with a set of markers, e.g. on a road side, the markers emitting a position signal indicative of a respective marker's known geographical position. The system comprises a distance detection unit and a processing unit provided in the vehicle, the processing unit adapted to receive said position signal of a respective marker. The processing unit is adapted to receive said known geographical position from the position signal of said respective marker; and to estimate a first distance measure of the vehicle relative to the respective marker based on a position signal measurement. The processing unit feeds said estimated first distance measure to the distance detection unit; the distance detection unit being adapted to detect said marker within the first distance measure by a second distance measure. The distance detection unit is further adapted to provide the processing unit with the second distance measure of the vehicle relative to the detected marker and with a detection angle of the detected marker; and the localization unit calculating an instantaneous geographical position of said vehicle from the second distance measure; the detection angle and the marker's known geographical position.

Methods, systems, computer-readable media, and apparatuses for determining a position indicator are presented. In some embodiments, position data indicating a position of a mobile device is obtained. A position indicator is determined based on at least one region of a map. The position of the mobile device is located within the at least one region. The position indicator indicates a map-feature-dependent region of the map. The position indicator is provided.

Systems, methods, and computer program products for determining the location of, and for communicating with a mobile device. An intelligent fixture transmits a first signal having a first spatial resolution and a second signal having a second spatial resolution. The spatial resolutions may be determined by a radiation pattern of the antenna broadcasting the signal. The mobile device receives at least one of the first and second signals, and determines an approximate location based thereon. An approximate location based on the first signal may be more accurate than an approximate location based on the second signal due to the different spatial resolutions of the signals. Location specific information may be transmitted to the mobile device based on the approximate location. The intelligent fixture may use an antenna having one spatial resolution for transmitting and receiving communication signals, and another antenna having a different spatial resolution for broadcasting beacon signals.

Methods, systems, computer-readable media, and apparatuses for determining a position indicator are presented. In some embodiments, position data indicating a position of a mobile device is obtained. A position indicator is determined based on at least one region of a map. The position of the mobile device is located within the at least one region. The position indicator indicates a map-feature-dependent region of the map. The position indicator is provided.