A navigation system featuring audio prompts including: a database including a plurality of beacon identifiers corresponding to physical beacons that are members of quadrants including one or more beacons, the database including navigation instructions between beacons in a quadrant and between beacons and adjacent quadrants; a controller adapted to: provide a first beacon and a destination beacon, determine a route from the first beacon to the destination beacon in a destination quadrant, announce, via the speaker, navigation instructions from the first beacon to a first quadrant of the route, for each quadrant along the route: receive, a newly encountered beacon identifier; and announce navigation instructions for the user to navigate from the newly encountered beacon to the next quadrant in the ordered list, and upon receiving a beacon identifier of a detected beacon in the destination quadrant, announce navigation instructions to navigate from the detected beacon to the destination beacon.

A navigation system featuring audio prompts including: a database including a plurality of beacon identifiers corresponding to physical beacons that are members of quadrants including one or more beacons, the database including navigation instructions between beacons in a quadrant and between beacons and adjacent quadrants; a controller adapted to: provide a first beacon and a destination beacon, determine a route from the first beacon to the destination beacon in a destination quadrant, announce, via the speaker, navigation instructions from the first beacon to a first quadrant of the route, for each quadrant along the route: receive, a newly encountered beacon identifier; and announce navigation instructions for the user to navigate from the newly encountered beacon to the next quadrant in the ordered list, and upon receiving a beacon identifier of a detected beacon in the destination quadrant, announce navigation instructions to navigate from the detected beacon to the destination beacon.

The present application is applied to the communications field and provides a method for obtaining a location of UE, and an apparatus. The method includes: sending, by a base station, at least one beam, where each beam includes first beam identity information, the first beam identity information is used to uniquely identify the beam, and the beam is received by UE that is in coverage of the beam; receiving, by the base station, second beam identity information sent by the UE, and the second beam identity information is used to indicate a beam on which the UE resides; and communicating, by the base station, with the UE according to the beam which the UE resides second beam identity information sent by the UE. By means of the apparatus and the method of embodiments of the present application, location information of UE can be obtained in a millimetric wave scenario.

A femtocell calibration solution is provided that uses the known location of the femtocell to calibrate timing based locating systems. The calculated time differences of different signals sent between macrocells and a mobile device can be used to solve for a reference time difference that accounts for the timing differences of the unsynchronized macrocells. The reference time difference can then be used to solve for the location of another mobile device if the calculated time differences between that mobile device and the macrocells are known. The solution can include taking many measurements of the calculated time difference at the first mobile device in order to average them to get a more accurate reference time difference. The solution can further include ceasing measurements at the first mobile device when the mobile device is no longer within range of the femtocell.

In an aspect, a communications device obtains a residual AoA bias associated with a first AoA measurement of a RS-P transmitted from a wireless reference node to a first base station, the wireless reference node associated with a location known to the communications device, obtains a second AoA measurement associated with an uplink signal (e.g., PRACH, SRS, UL-SRS-P, etc.) transmitted from a UE to the first base station, and calibrates the second AoA measurement based on the residual AoA bias. In another aspect, a communications device obtains a residual AoD bias associated with a first AoD measurement of a RS-P transmitted from a first base station to a wireless reference node with a known location, obtains a second AoD measurement associated with a downlink signal (e.g., DL-PRS) transmitted from the first base station to a UE, and calibrates the second AoD measurement based on the residual AoD bias.

Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

A mobile electronic device includes a wireless communications interface configured to receive, from a remote device, a sequence of remote device proximity indicators. The sequence of remote device proximity indicators indicate positions of the remote device. A mobile proximity detector of the mobile electronic device is configured to monitor a current position and a current velocity of the mobile electronic device; determine, from the sequence of remote device proximity indicators, a current remote device position and current remote device velocity; and determine, using at least the current remote device position and velocity, and the current position and the current velocity of the mobile electronic device, a likelihood of close contact between a user of the mobile electronic device and the remote device. A notification manager of the mobile electronic device is configured to notify the user of the likelihood of close contact.

A mobile electronic device includes a wireless communications interface configured to receive, from a remote device, a sequence of remote device proximity indicators. The sequence of remote device proximity indicators indicate positions of the remote device. A mobile proximity detector of the mobile electronic device is configured to monitor a current position and a current velocity of the mobile electronic device; determine, from the sequence of remote device proximity indicators, a current remote device position and current remote device velocity; and determine, using at least the current remote device position and velocity, and the current position and the current velocity of the mobile electronic device, a likelihood of close contact between a user of the mobile electronic device and the remote device. A notification manager of the mobile electronic device is configured to notify the user of the likelihood of close contact.

A device and method for improving the accuracy of angle of arrival and departure computations is disclosed. The device and method rely on manipulation of the antenna switching pattern to achieve an improved calculation of arrival angle. In one embodiment, the device calculates an estimate angle of arrival using conventional methods. The device then determines which of a plurality of different antenna switching pattern yields the more accurate results at this estimated angle of arrival. The AoA measurement is then repeated using the preferred antenna switching pattern. In another embodiment, the device captures the amplitude and/or phase of the signal from each antenna element. The device then sorts these antenna elements and defines a preferred antenna switching pattern based on the sort list. The AoA measurement is then performed using the preferred antenna switching pattern. In another embodiment, neural networks may be utilized to determine the preferred antenna switching pattern.