Patent classifications
G01S19/00
Doppler GNSS systems and methods
Techniques are disclosed for systems and methods to provide relatively accurate position data from a plurality of separate position sensors. A system includes a logic device configured to communicate with a position sensor coupled to a mobile structure. The logic device is configured to receive positions of the position sensor and/or velocities corresponding to motion of the position sensor from the position sensor and determine an estimated relative position of the mobile structure based, at least in part, on the received Doppler-derived velocity and a prior estimated relative position of the mobile structure.
LOCATION REPORTING FOR USER EQUIPMENT
Methods, systems, and devices for wireless communications are described. A base station may request a user equipment (UE) to report location information for the UE using a specific format. The UE may report the location information to the base station based on the request. The base station may use the location information reported by the UE to determine the location of the UE.
SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR IDENTIFYING A ROAD OBJECT
A system, a method, and a computer program product are disclosed for identifying a road object. The system may comprise a memory configured to store computer-executable instructions; and one or more processors configured to execute the instructions to: receive a road object observation associated with the road object for a first link, wherein the first link is associated with at least one second link; determine a first heading data for the received road object observation; determine a matched location for the received road object observation on the at least one second link; determine a second heading data for the received road object observation, based on the determined matched location; and identify the road object based on the determined first heading data and the determined second heading data, wherein as a result of identifying, the identified road object is either determined as associated with the first link or is determined to be not associated with the first link.
SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR IDENTIFYING A ROAD OBJECT
A system, a method, and a computer program product are disclosed for identifying a road object. The system may comprise a memory configured to store computer-executable instructions; and one or more processors configured to execute the instructions to: receive a road object observation associated with the road object for a first link, wherein the first link is associated with at least one second link; determine a first heading data for the received road object observation; determine a matched location for the received road object observation on the at least one second link; determine a second heading data for the received road object observation, based on the determined matched location; and identify the road object based on the determined first heading data and the determined second heading data, wherein as a result of identifying, the identified road object is either determined as associated with the first link or is determined to be not associated with the first link.
Doppler Compensation in Non-Terrestrial Networks
Apparatus and method for communication in non-terrestrial networks are disclosed. A set of Doppler shift curves for different distances to one or more satellite orbits is obtained. Measurements of satellite transmission are performed to obtain estimate of instantaneous Doppler shift of the transmission, the measurements including a timestamp. A Doppler shift curve corresponding to the measurements is calculated. A time offset on the selected curve is determined utilising the timestamps of the measurements, the time offset indicating the position of the Doppler shift of the apparatus on the curve. The Doppler shift of the satellite transmission is determined utilising the selected curve and the time offset
Systems and methods for textural zone monitoring
Various embodiments of the present invention provide systems and method for monitoring of physical movement in relation to regions where movement is either unconditionally or conditionally unauthorized.
Systems and methods for textural zone monitoring
Various embodiments of the present invention provide systems and method for monitoring of physical movement in relation to regions where movement is either unconditionally or conditionally unauthorized.
FREQUENCY SYNCHRONIZATION FOR NON-TERRESTRIAL CELLULAR WIRELESS COMMUNICATION NETWORKS
The invention provides a method and an architecture for deploying non-terrestrial cellular network base stations, so as to enable cellular network coverage in remote areas, where no fixed infrastructure is available. The proposed methods allow for efficient power management at the terminal devices that need to synchronize to the airborne or spaceborne cellular base stations. This is particularly important for IoT devices, which have inherently limited power are computing resources.
NAVIGATION WITH DIFFERENTIAL CARRIER PHASE MEASUREMENT FROM LOW EARTH ORBIT SATELLITES
Systems, device configurations, and processes are provided for navigation and determination of navigation observables based on low Earth orbit (LEO) satellite signals. A method for navigation includes using differential carrier phase measurement of LEO signals including correction of position estimates using integer ambiguity resolution and double difference carrier phase determinations. Frameworks described herein can use a computationally efficient integer ambiguity resolution to reduce the size of the integer least squares (ILS) determination. The framework may include a joint probability density function (pdf) of the megaconstellation LEO satellites' azimuth and elevation angle to characterize a LEO system. Embodiments are also directed to correction of ambiguities of carrier phase differential (CD)-low Earth orbit (LEO) (CD-LEO) measurements that may utilize a base and a rover without requiring prior knowledge of rover position.
SYSTEMS AND METHODS FOR SUPPORTING LOCATION AND COUNTRY DETERMINATION FOR 5G SATELLITE ACCESS
Satellite access to a PLMN with a Fifth Generation (5G) core network (5GCN) is supported by a serving satellite NodeB (gNB). The gNB determines or verifies the country in which a user equipment (UE) is located to ensure that the UE is located in the same country as the PLMN. The gNB may determine the country of the UE based on UE measurements from broadcast satellite signals and a positioning ID (PID) broadcast for each radio cell. The PID frequently changes to prevent spoofing. The gNB may use multiple UE measurements from a moving radio cell over a period of time to generate a more accurate location for the UE. The gNB may indicate to a 5GCN whether the country of the UE has been verified. The 5GCN will determine the location and country of the UE if the gNB indicates that the country is not fully verified.