A positioning signal processing method includes receiving positioning reference signal (PRS) configuration information from a positioning device. A PRS is received as a PRS resource set. Each PRS resource set includes one or more PRSs. One access network device corresponds to one or more PRS resource sets. The positioning signal processing method further includes determining PRS time domain information based on the PRS configuration information. The time domain information includes a periodicity (P) of the PRS and a symbol length of the PRS in the P. The positioning signal processing method further includes receiving a plurality of PRSs based on the PRS time domain information.

Embodiments of this application disclose a positioning method, a positioning apparatus, and a device. The method includes: sending target configuration information to a target device, where the target device is a network device or UE, and the target configuration information is used to configure at least one of the following for the network device or the UE: a first target signal to be sent and related information for sending the first target signal, where the first target signal is used to determine a location of the UE.

A safety system for the localization of at least one spatially variable object having at least one control and evaluation unit, having at least one radio location system, having at least one spatially resolving sensor for the detection of an object in a detection zone of the spatially resolving sensor, wherein the radio location system has at least three arranged radio stations, wherein at least one radio transponder is arranged at the object, wherein position data of the radio transponder and thus position data of the object can be determined by means of the radio location system, wherein the position data can be transmitted from the radio station of the radio location system to the control and evaluation unit, wherein the control and evaluation unit is configured to cyclically detect the position data of the radio transponder and information on the object in the detection zone can be determined by means of the spatially resolving sensor.

In one embodiment, an asynchronous wireless system for localization of nodes comprises a first wireless node being configured to receive a first communication from a third wireless node having an unknown location, to determine time difference of arrival (TDoA) information of the reception of the first communication between each of the first and a second wireless node, to determine TDoA ranging including a relative or absolute position of the third wireless node using the time difference of arrival information, and to synchronize the first and second wireless nodes based on a second communication with the synchronization being decoupled in time from the first communication. In another embodiment, a computer implemented method comprises receiving, with first and second wireless anchor nodes, packets from a wireless arbitrary device and performing time difference of arrival ranging upon reception of the packets between each of the first and the second wireless anchor nodes.

Disclosed are various techniques for wireless communication, and in particular, carrier-phase based positioning. In an aspect, a position estimation entity may obtain a first differential measurement based on measurement of a first set of positioning reference signal (PRS) resources by a first node and measurement of a second set of PRS resources by a second node, wherein the first set of PRS resources are phase-coherent with the second set of PRS resources. The position estimation entity may obtain a second differential measurement based on measurement of a third set of PRS resources by the first node and measurement of a fourth set of PRS resources by the second node, wherein the third set of PRS resources are phase-coherent with the fourth set of PRS resources. The position estimation entity may determine a positioning estimate of a target node based on the first differential measurement and the second differential measurement.

The present disclosure provides a communication device for wireless communication systems and a communication method for the communication device. The communication device includes: one or more processors, configured to determine information of a reference geographical location used for the communication device, and generate, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and a communication unit, configured to transmit the information of the relative geographical location to a predetermined communication object.

This disclosure provides systems, methods and apparatuses for detecting a presence of long training fields (LTFs) in packet extensions of high-efficiency (HE) packets. An apparatus requests a length of packet extensions to be used for a ranging operation. The apparatus receives an HE packet including a packet extension containing a selected number of LTFs based at least in part on the requested packet extension length. The apparatus performs the ranging operation based on a determination that the packet extension contains LTFs. In some aspects, the apparatus detects a presence of LTFs in the packet extension based on a bit provided in the HE packet. In some other aspects, the apparatus detects a presence of LTFs in the packet extension by extracting sequences from the packet extension.

A location information server includes: an acquisition unit configured to acquire received signal strengths of radio signals transmitted from a transmitter and received at a receiver; an estimation unit configured to estimate a location of the transmitter or receiver, using at least the top three received signal strengths among the acquired received signal strengths; and a reliability calculation unit configured to calculate a reliability of the location estimation based on the received signal strengths that have been used.

A system and method for obtaining location data for a portable device relative to an object. The system and method may include an object device disposed in a fixed position relative to the object, the object device having an antenna configured to communicate wirelessly via UWB with the portable device via a communication link. The system may include a control system, such as a robot and/or a remote controller, configured to obtain one or more samples pertaining to communications between the portable device and the object device.

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a plurality of downlink positioning reference signals (DL-PRS) transmitted by a corresponding plurality of cells, wherein the plurality of cells is grouped into one or more groups, wherein each of the one or more groups is associated with one or more attributes, and wherein each cell of each of the one or more groups has the same values of the one or more attributes, reports, to a positioning entity, at least one baseline positioning measurement for at least one representative cell of at least one group of the one or more groups based on DL-PRS transmitted by the at least one representative cell, and reports, to the positioning entity, differential positioning measurements for cells of the at least one group based on the at least one baseline positioning measurement.