A method for location finding includes detecting a respective phase difference between the received radio signals that are associated with each of the multiple antennas of each of the fixed transceivers. One or more respective angles are computed between each of the fixed transceivers and the mobile transceiver based on the respective phase differences. Location coordinates of the mobile transceiver are found based on the angles and the transmit locations of the transmitters.

A method performed for side-link (SL) configuration of a plurality of user equipment (UEs), the method comprising: sending, to a transmitting UE (Tx UE) and a receiving UE (Rx UE), a request for sidelink (SL) positioning reference signal (PRS) capabilities data; receiving, from each of the Tx UE and the Rx UE, respective SL PRS capabilities data; configuring a SL positioning reference signal (PRS) that is based on the SL PRS capabilities data for each of the Tx UE and the Rx UE; sending data specifying a selected SL PRS configuration to the Tx UE; receiving an acknowledgement signal from the Tx UE indicating a Tx UE SL PRS configuration that is based on the selected SL PRS configuration; and providing, to the Rx UE, the Tx UE SL PRS configuration.

A example method of determining a positioning signal measurement includes: sending, from a user equipment to a network entity, a processing-capability message indicating a processing capability of the user equipment for processing an aggregated positioning reference signal, where the processing-capability message corresponds to one or more assistance-data types; obtaining, at the user equipment, the aggregated positioning reference signal; and processing, at the user equipment, the aggregated positioning reference signal based on assistance data to determine the positioning signal measurement, the assistance data including the one or more assistance-data types.

A example method of determining a positioning signal measurement includes: sending, from a user equipment to a network entity, a processing-capability message indicating a processing capability of the user equipment for processing an aggregated positioning reference signal, where the processing-capability message corresponds to one or more assistance-data types; obtaining, at the user equipment, the aggregated positioning reference signal; and processing, at the user equipment, the aggregated positioning reference signal based on assistance data to determine the positioning signal measurement, the assistance data including the one or more assistance-data types.

Disclosed are techniques for performing positioning operations. In an aspect, a user equipment (UE) transmits, to a positioning entity, a request for positioning assistance data message, the request for positioning assistance data message identifying a serving cell of the UE and one or more neighboring cells of the UE with which the UE is attempting to perform a positioning procedure, and receives, from the positioning entity, a positioning assistance data message in response to the request.

Provided is a positioning method performed by a user equipment, the positioning method including receiving a first reference signal from a first transmitter and a second reference signal from a second transmitter, extracting a first sample vector based on received data of the first reference signal measured at a plurality of sample times and a second sample vector based on received data of the second reference signal measured at the plurality of sample times, calculating a first phase vector and a second phase vector by performing an inner product operation of a DFT coefficient vector for DFT operation with respect to each of the first and second sample vectors, and calculating a difference between a travel distance of the first reference signal and a travel distance of the second reference signal based on phase information of components included in a conjugate multiplication of the first and second phase vectors.

Disclosed are techniques for scheduling uplink (UL) and downlink (DL) physical layer resources for a serving node and a user equipment (UE) for round trip time (RTT) and observed time difference of arrival (OTDOA) based positioning. In an aspect, a serving node and/or a network entity configure the UL and DL physical layer resources, and inform the UE. A network node transmits RTT measurement (RTTM) signal to the UE and receives RTT response (RTTR) signals from the UE. The network node measures the times the RTTM signals are transmitted and the times the RTTR signals are received. The UE provides to serving node processing times indicating a duration between the UE receiving the RTTM signals and the UE transmitting the RTTR signals. The RTTs are calculated from the times measured by the network node and the processing times provided by the UE.

According to an example aspect of the present invention, there is provided a method comprising obtaining a first length of time, a second length of time, a third length of time, a fourth length of time and a fifth length of time, and determining a time difference of arrival of a signal from a wireless tag between the first and second non-master base stations based on the determined lengths of time.

According to an example aspect of the present invention, there is provided a method comprising obtaining a first length of time, a second length of time, a third length of time, a fourth length of time and a fifth length of time, and determining a time difference of arrival of a signal from a wireless tag between the first and second non-master base stations based on the determined lengths of time.

A data processing system for navigation using-spread spectrum signals herein implements causing a transceiver of the data processing system to transmit a first electromagnetic signal; receiving, via the transceiver, second electromagnetic signals associated with a first object responsive to the first electromagnetic signal, the second electromagnetic signals including first spread-spectrum signals and an identification of the first object incorporated into the first spread-spectrum signals, each respective second electromagnetic signal of the second electromagnetic signals being transmitted from a separate location on the first object; analyzing the second electromagnetic signals to obtain the identification of the first object; and determining a first estimated location of the data processing system relative to the first object by calculating a difference between the time of transmission of the first electromagnetic signal and a respective time of receipt of each of the second electromagnetic signals.