Provided is a terminal apparatus including: a receiver configured to detect a transmission direction of a signal used for communication with at least one base station apparatus; and a transmitter configured to transmit, to a location server, base station direction information for indicating the transmission direction detected.

A system and method is provided to establish a global positioning service with massive availability of “position-learning” radio communication nodes. Each communication node learns of its geographic coordinate in a global sense by harvesting location information from neighboring communication nodes. By conducting telemetry multiple times and implementing an error index, each communication node maintains its geographic coordinate with a precision that improves progressively over time.

A locating and communication method for a radio terminal by means of a satellite locating and communication system, which implements a first step, in the course of which the radio terminal transmits to a non-geostationary satellite a repeating sequence a predetermined number of times N for the same data packet, which is time-shifted by the same predetermined time shift Δτ each time is provided. Subsequently, a satellite access and processing ground station determines the location of the radio terminal from the data packets with access, which are extracted from a listening signal digitized and dated by the satellite and from the same detected sequence associated with said radio terminal, and from the ephemerides of the satellite by using a technique for measuring angle or angles of arrival by means of sequenced interferometry associated with a technique for measuring Doppler drift or drifts.

Method and system for calibrating a tag location system comprising the steps of placing one or more test radio frequency RF, communication circuits at known locations within a space to be calibrated. Receiving a signal from each one of the test RF communication circuit. Determining a property of each received signal, wherein the determined property is associated with the known location of the test RF communication circuit that generated the signal. Generating a model of the calibrated space from the determined properties of the each received signal and associated known locations, wherein the model provides an output indicating the location of a signal-producing tag based on signals received from the test RF communication circuits and associated known locations.

The present invention relates to a method for determining a position of a terminal device (110) in a wireless communication system (100). According to the method, a first message (130-133) is broadcasted by the terminal device (110). The first message (130-133) comprises a positioning request and a terminal identifier identifying the terminal device (110). The first message (130-133) is received at a group of neighboring devices (120-123). Each neighboring device of the group of neighboring devices (120-123) is located within a wireless radio communication range of the terminal device (110). From one or more neighboring devices (120, 121) of the group of neighboring devices (120-123) a corresponding second message (140, 141) is transmitted to location server (103) of the wireless communication system (100). The second message (140, 141) comprises the terminal identifier and an indication that the terminal device (110) requested a positioning. For each neighboring device (120, 121) of the one or more neighboring devices a corresponding position information is determined. The position of the terminal device (110) is determined at the location server (103) based on the position of the one or more neighboring devices (120, 121).

A geolocationing system and method for providing awareness in a multi-space environment, such as a hospitality environment or educational environment, are presented. In one embodiment of the geolocationing system, a vertical and horizontal array of gateway devices is provided. Each gateway device includes a gateway device identification providing an accurately-known fixed location within the multi-space environment. Each gateway device includes a wireless transceiver that receives a beacon signal from a proximate wireless-enabled personal locator device. The gateway devices, in turn, send gateway signals to a server, which determines estimated location of the wireless-enabled personal locator device.

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a location server, identifiers of a set of transmission-reception points (TRPs), the set of TRPs including a first reference TRP and a plurality of neighboring TRPs, receives a configuration to report reference signal time difference (RSTD) measurements for the plurality of neighboring TRPs with respect to a receive time of a reference signal from the first reference TRP and UE reception-to-transmission (UE Rx-Tx) measurements for a second reference TRP and the plurality of neighboring TRPs, and transmits, to the location server, based on one or more of a plurality of conditions being satisfied, a single UE Rx-Tx measurement for the second reference TRP and the RSTD measurements for the plurality of neighboring TRPs with respect to the receive time of the reference signal from the first reference TRP.

A method for calculating a time-of-arrival of a multicarrier uplink signal includes: accessing a multicarrier reference signal including a subcarrier reference signal for each subcarrier frequency in a set of subcarrier frequencies; receiving the multicarrier uplink signal transmitted from a user device, the multicarrier uplink signal including a subcarrier uplink signal for each subcarrier frequency in the set of subcarrier frequencies; for each subcarrier frequency in the set of subcarrier frequencies, calculating a phase difference, in a set of phase differences, between the subcarrier reference signal for the subcarrier frequency and a subcarrier uplink signal for the subcarrier frequency; calculating a time-of-arrival of the multicarrier uplink signal at the transceiver based on the set of adjusted phase differences; and transmitting the time-of-arrival of the multicarrier uplink signal to a remote server.

Disclosed are techniques for wireless communication. In an aspect, a first network node receives transmitter phase information from a second network node, the transmitter phase information including one or more parameters representing phase of a plurality of positioning reference signals (PRS) transmitted by at least one network node on a plurality of frequency intervals, and obtains positioning measurements of the plurality of PRS transmitted by the at least one network node based on the one or more parameters representing the phase of the plurality of PRS to enable a location of a user equipment (UE) to be determined based on at least the positioning measurements of the plurality of PRS.

Disclosed are techniques for wireless position estimation of a user equipment (UE) involving one or more uplink (UL) relays. The UL relay(s) receives UL data communications from UEs, and relay the UL data communications to a serving network component (e.g., gNB) via a backhaul connection (wired or wireless). In an aspect, uplink relay(s) are selected by a network component for a position estimation session of a target UE. The uplink relay(s) measure UL SRS for positioning from the target UE, and report UL SRS measurement information to the network component and/or the serving network component.