Patent classifications
G01S11/04
Method for transmitting/receiving reference signal in wireless communication system, and device therefor
A method whereby a user equipment transmits/receives a reference signal for distance measurement in a wireless communication system according to an embodiment of the present invention comprises: a step of receiving, from a base station, a downlink (DL) positioning reference signal (PRS) including sinusoidal components of different angular frequencies; a step of acquiring a phase difference between the sinusoidal components of the DL PRS; a step of transmitting a first uplink (UL) PRS indicating the phase difference, so as to measure a first distance between the user equipment and the base station at a first point of time; and a step of transmitting a second UL PRS so as to measure a second distance between the user equipment, the position of which has changed after the first point of time, and the base station, wherein the user equipment may configure the same phase difference, acquired via the DL PRS before the first point of time, for the second UL PRS, without receiving an additional DL PRS for measuring the second distance. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, the base station or a network.
Method for transmitting/receiving reference signal in wireless communication system, and device therefor
A method whereby a user equipment transmits/receives a reference signal for distance measurement in a wireless communication system according to an embodiment of the present invention comprises: a step of receiving, from a base station, a downlink (DL) positioning reference signal (PRS) including sinusoidal components of different angular frequencies; a step of acquiring a phase difference between the sinusoidal components of the DL PRS; a step of transmitting a first uplink (UL) PRS indicating the phase difference, so as to measure a first distance between the user equipment and the base station at a first point of time; and a step of transmitting a second UL PRS so as to measure a second distance between the user equipment, the position of which has changed after the first point of time, and the base station, wherein the user equipment may configure the same phase difference, acquired via the DL PRS before the first point of time, for the second UL PRS, without receiving an additional DL PRS for measuring the second distance. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, the base station or a network.
Method to Correct Phase Ambiguity in Range and Phase Measurements Transitions
There is provided a subject location system, including a master processing unit, a receiver, and at least one Tag associated with the subject. The system includes a Hub with a master processing unit and the Tag includes transponders. Range and phase data are used to calculate the position of the Tag in relation to the Hub, and phase cycle errors are eliminated by, the use of a cyclical search minimizing an innovation inner product.
Joint beam selection and resource partitioning in a mm-wave network
A method for jointly optimizing beam selection and partitioning of transmission resources for a downlink between a base station (BS) and a user equipment (UE) in a mm-wave cellular network such as the small cell layer of a 5G network. A UE position estimate is used for accurate BS beam selection and alignment between the BS and UE beams and/or provide position-based services or functionalities. An optimal partitioning factor is obtained either by maximizing a communication performance indicator while meeting a constraint upon a localization performance indicator or by maximizing a localization performance indicator while meeting a constraint upon a communication performance indicator. A communication performance indicator can be an effective rate coverage probability or an effective throughput.
Joint beam selection and resource partitioning in a mm-wave network
A method for jointly optimizing beam selection and partitioning of transmission resources for a downlink between a base station (BS) and a user equipment (UE) in a mm-wave cellular network such as the small cell layer of a 5G network. A UE position estimate is used for accurate BS beam selection and alignment between the BS and UE beams and/or provide position-based services or functionalities. An optimal partitioning factor is obtained either by maximizing a communication performance indicator while meeting a constraint upon a localization performance indicator or by maximizing a localization performance indicator while meeting a constraint upon a communication performance indicator. A communication performance indicator can be an effective rate coverage probability or an effective throughput.
Apparatus for acquisition of distance for all directions of moving body and method thereof
A vision apparatus for a moving body is provided. The vision apparatus for a moving body includes a plurality of cameras that are arranged to be distanced from one another, and are arranged in a diagonal direction to the moving direction of the moving body, and a processor that receives images photographed at each of the plurality of cameras, and stereo-matches the plurality of received images and generates distance information for all directions of the moving body.
Apparatus for acquisition of distance for all directions of moving body and method thereof
A vision apparatus for a moving body is provided. The vision apparatus for a moving body includes a plurality of cameras that are arranged to be distanced from one another, and are arranged in a diagonal direction to the moving direction of the moving body, and a processor that receives images photographed at each of the plurality of cameras, and stereo-matches the plurality of received images and generates distance information for all directions of the moving body.
BEAM MANAGEMENT BASED ON LOCATION AND SENSOR DATA
The present disclosure involves determining base station (BS) beams for communicating between a UE and the BS. The BS may use sensor data or beam management reporting history to assist with determining one or more appropriate beams. The sensor data may include camera images, radar data, or lidar data, and be used to model the cell environment served by the BS. The BS may obtain reporting data from multiple UEs over time indicating the quality of beams received by the UEs at various locations in the cell environment and model the cell environment based on the reporting data. The BS may associate beams with possible UE locations within the cell environment and use the associations to determine beams for communicating with a UE after determining the UE's location.
BEAM MANAGEMENT BASED ON LOCATION AND SENSOR DATA
The present disclosure involves determining base station (BS) beams for communicating between a UE and the BS. The BS may use sensor data or beam management reporting history to assist with determining one or more appropriate beams. The sensor data may include camera images, radar data, or lidar data, and be used to model the cell environment served by the BS. The BS may obtain reporting data from multiple UEs over time indicating the quality of beams received by the UEs at various locations in the cell environment and model the cell environment based on the reporting data. The BS may associate beams with possible UE locations within the cell environment and use the associations to determine beams for communicating with a UE after determining the UE's location.
METHOD FOR MEASURING, BY FIRST TERMINAL, DISTANCE BETWEEN FIRST TERMINAL AND SECOND TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND TERMINAL THEREFOR
One embodiment relates to a method for measuring, by a first terminal, a distance between the first terminal and a second terminal and positions thereof in a wireless communication system, the method comprising the steps of: receiving, by a first terminal, a first signal and a second signal from a second terminal; and measuring, by the first terminal, a distance between the first terminal and the second terminal on the basis of the first signal and the second signal, wherein the distance is measured on the basis of a first transmitting angle, a second transmitting angle, a first receiving angle, a second receiving angle, and a difference between a first receiving time when the first terminal receives the first signal and a second receiving time when the first terminal receives the second signal.