Patent classifications
G01S1/20
METHOD AND APPARATUS FOR TRANSMITTING POSITIONING REFERENCE SIGNAL
The present invention relates to a technology for estimating a position of a terminal using a positioning reference signal. More specifically, the present invention relates to a method and apparatus for controlling a transmission period or transmission power of a positioning reference signal in order to accurately measure a position of a terminal. In particular, the present invention provides a method and apparatus for estimating a position of a terminal, the method comprising the steps of: receiving a positioning reference signal from each of a serving cell and one or more neighboring cells; generating reference signal time difference (RSTD) information on the basis of information on a reception time of the positioning reference signal; and estimating a position of a terminal on the basis of the RSTD information.
METHOD AND APPARATUS FOR CONFIGURING DEVICES TO ENABLE DETERMINATION OF LOCATION INFORMATION
Aspects of the subject disclosure may include, for example, determining, according to a location of each of a plurality of devices, an arrangement of coverage areas of devices pairs of the plurality of devices to enable a determination of a mobile device location relative to one or more of the devices pairs within a demarcated area, and identifying a transmission schedule for each of the devices pairs to transmit a wireless signal that initiates a process to determine the mobile device location. Other embodiments are disclosed.
Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
Localization systems and methods for transmitting timestampable localization signals from anchors according to one or more transmission schedules. The transmission schedules may be generated and updated to achieve desired positioning performance. For example, one or more anchors may transmit localization signals at a different rate than other anchors, the anchor transmission order can be changed, and the signals can partially overlap. In addition, different transmission parameters may be used to transmit two localization signals at the same time without interference. A self-localizing apparatus is able to receive the localization signals and determine its position. The self-localizing apparatus may have a configurable receiver that can select to receive one of multiple available localization signals. The self-localizing apparatuses may have a pair of receivers able to receive two localization signals at the same time. A bridge anchor may be provided to enable a self-localizing apparatus to seamlessly transition between two localization systems.
Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
Localization systems and methods for transmitting timestampable localization signals from anchors according to one or more transmission schedules. The transmission schedules may be generated and updated to achieve desired positioning performance. For example, one or more anchors may transmit localization signals at a different rate than other anchors, the anchor transmission order can be changed, and the signals can partially overlap. In addition, different transmission parameters may be used to transmit two localization signals at the same time without interference. A self-localizing apparatus is able to receive the localization signals and determine its position. The self-localizing apparatus may have a configurable receiver that can select to receive one of multiple available localization signals. The self-localizing apparatuses may have a pair of receivers able to receive two localization signals at the same time. A bridge anchor may be provided to enable a self-localizing apparatus to seamlessly transition between two localization systems.
METHOD AND USER EQUIPMENT FOR PERFORMING MEASUREMENT TO SUPPORT POSITIONING, METHOD AND POSITIONING SERVER FOR SUPPORTING POSITIONING, AND BASE STATION FOR SUPPORTING POSITIONING
The present invention provides a UE for performing measurement for positioning, a UE for transmitting a signal for positioning, and a positioning server and a base station for supporting positioning. The measuring UE receives configuration information relating to an uplink reference signal for positioning, receives the uplink reference signal on the basis of the configuration information and transmits information relating to a metric value measured on the basis of the uplink reference signal and information relating to a reception-transmission time difference of the measurement UE.
METHOD FOR PERFORMING OTDOA-RELATED OPERATION IN WIRELESS COMMUNICATION SYSTEM
One embodiment of the present invention relates to a method for performing, by a base station, observed time difference of arrival (OTDOA)-related operations in a wireless communication system, the method comprising the steps of: transmitting a positioning reference signal (PRS) to a terminal through a PRS positioning occasion to which at least two precoding processes are applied; receiving, from the terminal, OTDOA signal measurement information on the basis of the PRS; and positioning the terminal on the basis of the OTDOA signal measurement information.
MOBILE LOCALIZATION IN VEHICLE-TO-VEHICLE ENVIRONMENTS
Recursive constellations of Ultra-Wide Band (“UWB”) transceivers are optimized based on a desired functionality or objective. By structuring transceivers of an UWB network into a plurality of subsets or constellations of UWB nodes each constellation can be optimized for a particular purpose while maintaining connectivity and cohesiveness within the overarching network. Implementations of specific functionality can be applied to Intra-Vehicle, Inter-Vehicle and Vehicle-to-Infrastructure constellations resulting in localized optimizations while maintaining a cohesive and coherent UWB network.
SYSTEMS AND METHODS FOR BEAM GROUP REPORTING FOR NEW RADIO POSITIONING
This disclosure provides methods, devices, and systems for beam group reporting for positioning in new radio (NR) wireless communications systems. In some wireless communications systems, multiple PRS resources, e.g., a beam group, received by a user equipment (UE) from the same network entity may be used to produce a combined Time of Arrival (TOA) measurement for the reference or target to derive an Reference Signal Time Difference (RSTD) estimate. The UE provides to a network entity an indication of the PRS resources in the beam group, which may be specifically or generally identified. Additionally, parameters associated with the beam group are provided, such as a relative quality of the TOA measurement for each PRS resource in the subset, a spread of the TOA measurements in the subset, a relative signal strength of each PRS resource in the subset, or a spread of the signal strength in the subset.
PARTIALLY SYNCHRONIZED MULTILATERATION/TRILATERATION METHOD AND SYSTEM FOR POSITIONAL FINDING USING RF
Systems and methods for determining a location of one or more user equipment (UE) in a wireless system can comprise receiving reference signals via a location management unit having two or more co-located channels, wherein the two or more co-located channels are tightly synchronized with each other and utilizing the received reference signals to calculate a location of at least one UE among the one or more UE. Embodiments include multichannel synchronization with a standard deviation of less than or equal 10 ns. Embodiments can include two LMUs, with each LMU having internal synchronization, or one LMU with tightly synchronized signals.
Communication system determining time of arrival using matching pursuit
A wireless receiver receives location pilots embedded in received symbols and uses the location pilots to detect the first path for every base station the network has designated for the receiver to use in time of arrival estimation. The receiver preferably applies matching pursuit strategies to offer a robust and reliable identification of a channel impulse response's first path. The receiver may also receive and use estimation pilots as a supplement to the location pilot information in determining time of arrival. The receiver can use metrics characteristic of the channel to improve the robustness and reliability of the identification of a CIR's first path. With the first path identified, the receiver measures the time of arrival for signals from that path and the receiver determines the observed time difference of arrival (OTDOA) to respond to network requests for OTDOA and position determination measurements.