The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). In particular, the present invention relates to an apparatus and method for position measurement in a wireless communication system. An operating method of a terminal in the wireless communication system includes transmitting a signal for requesting for positioning, and receiving positioning signals for the positioning of the terminal from a plurality of other terminals.

A method is presented of assessing a radio wave intensity distribution covering areas and frequencies, and assessing the quality of a communication function provided by a radio wave. An apparatus is apparatus is presented including a radio wave station position detection unit that detects a position of a radio wave station on the basis of a geographic image having position information and of an image of the radio wave station; a radio wave station information integration unit that outputs radio wave station information based on the position of the radio wave station and radio wave station license information on the radio wave station; and a radio wave intensity distribution estimation unit that estimates and outputs a radio wave intensity distribution within a designated range on the basis of the radio wave station information and geographic information on the surroundings of the radio wave station.

A method is presented of assessing a radio wave intensity distribution covering areas and frequencies, and assessing the quality of a communication function provided by a radio wave. An apparatus is apparatus is presented including a radio wave station position detection unit that detects a position of a radio wave station on the basis of a geographic image having position information and of an image of the radio wave station; a radio wave station information integration unit that outputs radio wave station information based on the position of the radio wave station and radio wave station license information on the radio wave station; and a radio wave intensity distribution estimation unit that estimates and outputs a radio wave intensity distribution within a designated range on the basis of the radio wave station information and geographic information on the surroundings of the radio wave station.

A receiver, which is located in a spatial region of interest served by a transmitter of a wireless communication network, receives a radio signal from at least one transmitter of the wireless communication network, and the radio signal has a plurality of position reference signal (PRS) sequences. Each PRS sequence has associated therewith a different PRS sequence identifier, and each PRS sequence is send using a different beam cone of the transmitter. The beam cones of the transmitter for sending the plurality of PRS sequences are directed to the spatial region of interest. The receiver processes the radio signal to estimate a time of arrival of each PRS sequence and to obtain for each PRS sequence the associated PRS sequence identifier. A position of the receiver is estimated using the times of arrival and the obtained PRS sequence identifiers.

A method of environmental sensing through pilot signals in a spread spectrum wireless communication system is provided with a plurality of wireless terminals. The plurality of wireless terminals includes a plurality of multi-input multi-output (MIMO) radars and at least one base station. The plurality of terminals broadcasts a beacon pilot signals containing a terminal-specific information and encoded with a corresponding identifier. Using the corresponding identifier, an arbitrary radar from the plurality of MIMO radars separates the beacon pilot signal from an ambient signal. More specifically, the arbitrary radar compares the ambient signal to the corresponding identifier of each wireless terminal to identify at least one origin terminal. Subsequently, the arbitrary radar extracts the terminal-specific information from the beacon pilot signal of the origin terminal. The terminal-specific information is used to exchange data between the plurality of wireless terminals for autonomous driving.

A system and method for determining the range, angle, and elevation of a target object having a radio transceiver relative to a known location is provided. The system includes a primary radio transceiver located an initially unknown distance from the target object, and at least one auxiliary radio receiver located a known distance and angle relative to a reference bearing from the primary radio transceiver. The system further includes a processing unit in communication with the primary radio transceiver and at least one auxiliary receiver. The processing unit is capable of calculating the range between the primary and the target object and the angle to the target object relative to the reference bearing. The method includes the steps of: (1) acquiring range data between at least a primary radio transceiver of the system and the target object using two way ranging; (2) transmitting the range data to a processing unit that is in communication with the primary radio transceiver and at least one auxiliary radio receiver; (3) calculating the range between the primary radio transceiver and the target object using two way ranging algorithms at the processing unit; (4) acquiring time of arrival data for signals exchanged between the target object and the at least one auxiliary radio receiver; and (5) determining the angle of the target object relative to a reference bearing from the primary radio transceiver of the system by running the time of arrival data from the tracked object through an algorithm.

Methods and devices useful in performing precise indoor localization and tracking are provided. By way of example, a method includes locating and tracking, via a first wireless electronic device, a plurality of other wireless electronic devices within an indoor environment. The method also includes performing front-back detection, performing stationary node detection, performing angle of arrival (AoA) error correction, and performing field of view (FOV) filtering. Performing indoor localization and tracking of the plurality of other wireless electronic devices includes providing an indication of a physical location of the plurality of other wireless electronic devices within the indoor environment.

Methods and devices useful in performing precise indoor localization and tracking are provided. By way of example, a method includes locating and tracking, via a first wireless electronic device, a plurality of other wireless electronic devices within an indoor environment. The method also includes performing front-back detection, performing stationary node detection, performing angle of arrival (AoA) error correction, and performing field of view (FOV) filtering. Performing indoor localization and tracking of the plurality of other wireless electronic devices includes providing an indication of a physical location of the plurality of other wireless electronic devices within the indoor environment.

A laser comprising a laser cavity formed by a broadband mirror and a comb mirror having a plurality of reflection peaks. A spacing between the plurality of reflection peaks is adjusted such that only one reflection peak is in a gain bandwidth of the laser.

A method of estimating the location of a signal source comprises, by a processing unit: determining .sup.m,n which represents a difference between accumulated phases of signals, S.sub.m and S.sub.n, received by at least one pair of the receivers, determining a first estimate of the location of said signal source based on position data and .sup.m,n of at least one pair of receivers, said first estimate being associated with an accuracy area, determining data representative of difference in times of arrival of modulation patterns of the signals S.sub.m, S.sub.n, wherein said data comprise an ambiguity, and for said at least one pair of receivers, using at least said data representative of difference in times of arrival of the modulation patterns of the signals, .sup.m,n, and said accuracy area, to obtain second estimates .sub.Src.sup.k of the source location, at least some of them being located within the accuracy area.