According to one aspect of the presently disclosed subject there is provided a system implemented in a mobile carrier for determining a position of the mobile carrier by using a processing and memory circuitry (PMC) and a satellite communications on the move (SOTM) antenna system, being configured to maintain a communications link from a satellite communications (SATCOM) having a spatial position. The system is configured to obtain data indicative of the spatial position of the SATCOM, the estimated altitude of the mobile carrier and the direction of the antenna towards the SATCOM spatial position and to determine the position of the mobile carrier.

A system for determining a bearing or location of a radio frequency identification (RFID) tag using a handheld RFID reader is described. In one embodiment, the reader is equipped with an accelerometer. A user moves the reader while the reader receives the tag's signal and determines the tag signal's phase at multiple locations. The locations of the reader antenna can be reconstructed using the accelerometer data. By using the phase determined at multiple locations in conjunction with the location of the reader antenna, the reader can determine the bearing of the tag. For an RFID reader not equipped with an accelerometer, the sign and ratio of the rate of change in the phase of a tag's signal to the distance traveled by the reader antenna can be used to determine the location of the tag relative to the reader.

A system for determining a bearing or location of a radio frequency identification (RFID) tag using a handheld RFID reader is described. In one embodiment, the reader is equipped with an accelerometer. A user moves the reader while the reader receives the tag's signal and determines the tag signal's phase at multiple locations. The locations of the reader antenna can be reconstructed using the accelerometer data. By using the phase determined at multiple locations in conjunction with the location of the reader antenna, the reader can determine the bearing of the tag. For an RFID reader not equipped with an accelerometer, the sign and ratio of the rate of change in the phase of a tag's signal to the distance traveled by the reader antenna can be used to determine the location of the tag relative to the reader.

An electronic device includes a processor configured to: receive a Radio Frequency (RF) signal of a designated frequency band from an external electronic device by using at least two antennas among the multiple antennas; acquire first angle-of-arrival data of the RF signal, based on at least a part of the RF signal; determine a posture of the electronic device based on tilt information of the electronic device provided from a sensor module; based on the electronic device that is determined to be tilted in the first direction or the second direction; identify a compensation value corresponding to tilt information of the electronic device; acquire second angle-of-arrival data by applying the compensation value to the first angle-of-arrival data; and determine a location of the external electronic device based on the second angle-of-arrival data.

In a server system, a computer-implemented method of initiating a proximity-based communication protocol involving a first and one or more second client devices. For each of plural candidate second devices location coordinates are retrieved and an associated axis aligned bounding box AABB is calculated. When AABB of such candidate second devices overlap with an AABB for the first device, the candidate is presented to the user of the first device. Next, a selection of one or more candidate second devices is received from the first device and causing the protocol to be initiated between the first device and the one or more selected candidate second devices.

Apparatus and methods for apparatus positioning are provided. Solution includes receiving (300) by an apparatus from a network element a signal having multipath propagated signal components and obtaining time domain samples of the multipath propagated signal components, mapping (302) the time domain samples to one or more frequency offset-delay pairs to obtain frequency offsets and delays of the received multipath propagated signal components, calculating (304) angle of arrival of one or more multipath propagated signal components, determining (306) the multipath propagated signal component corresponding to the direct propagation path between the apparatus and the network element, and controlling (308) the utilisation of the angle of arrival and delay of the multipath propagated signal component corresponding to the direct propagation path in the determination of the location of the apparatus.

An apparatus, method and computer program for a mobile transceiver and for a base station transceiver. The method includes receiving a downlink signal from a base station transceiver of the mobile communication system via a downlink data channel, identifying a line of sight component of at least the first positioning symbol of the downlink signal based on the one or more sequences of zero-value samples and determining information related to a location of the mobile transceiver based on the one or more non-zero-value samples received within the line of sight component of the first positioning symbol. The downlink signal includes one or more positioning symbols having a first positioning symbol, wherein the first positioning symbol is based on samples in a time domain to be transmitted by the base station transceiver.

An apparatus, method and computer program for a mobile transceiver and for a base station transceiver. The method includes receiving a downlink signal from a base station transceiver of the mobile communication system via a downlink data channel, identifying a line of sight component of at least the first positioning symbol of the downlink signal based on the one or more sequences of zero-value samples and determining information related to a location of the mobile transceiver based on the one or more non-zero-value samples received within the line of sight component of the first positioning symbol. The downlink signal includes one or more positioning symbols having a first positioning symbol, wherein the first positioning symbol is based on samples in a time domain to be transmitted by the base station transceiver.

An indoor positioning method includes: receiving a first measurement parameter obtained by a first device by measuring a second device in a first coordinate system, where the first measurement parameter includes a first angle and a first distance, the first angle is an angle of the second device in the first coordinate system, and the first distance is a distance of the second device relative to an origin of coordinates of the first coordinate system; determining a first spatial position of the second device in the first coordinate system based on the first angle and the first distance; and determining a spatial position of the second device in a geodetic coordinate system based on the first spatial position and a conversion relationship between the first coordinate system and the geodetic coordinate system.

A target device positioning method and a mobile terminal are provided. The mobile terminal determines, according to obtained measurement signals sent by a target device from a trigger moment to a current measurement moment, azimuths of the target device relative to the mobile terminal at the moments, obtains an original motion trail of the target device from the trigger moment to the current measurement moment, determines an effective motion trail of the target device according to the original motion trail and change rates of the azimuths of the target device relative to the mobile terminal at the moments, performs matching with a map according to an azimuth of the target device relative to the mobile terminal at the current measurement moment and the effective motion trail of the target device, to determine location information of the target device, and displays the location information of the target device.