Abstract:
A wireless power transmission device can include a plurality of transmission coil units, in which each of the plurality of transmission coil units includes a plurality of antenna coils arranged on different three-dimensional planes, and the plurality of antenna coils are configured to generate a magnetic field passing through at least one or more of the different three-dimensional planes to transfer transmission power to a wireless power reception device.
Abstract:
Disclosed is a method of supporting wireless Internet mobility including receiving, by a mobility support server, at least one service condition selected from a service condition group consisting of mobility support target information, network information, service quality information, ubiquitous thing information, communication mode information, and access node terminal information to provide an Internet service to a mobility support target, registering, by the mobility support server, support information for the mobility support target according to the at least one service condition, providing, by the mobility support server, an Internet service for the mobility support target on the basis of the at least one service condition, and supporting, by the mobility support server, mobility for the mobility support target on the basis of the at least one service condition.
Abstract:
The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
Abstract:
A method to operate a receiving node is provided. The method includes receiving a first set of reference signals being transmit-beamformed using transmit beam groups in at least one transmitting node with receive-beamforming using receive beam groups. The method also includes transmitting information to select one transmit beam group of the transmit beam groups to one of the at least one transmitting node. The method further includes receiving a second set of the reference signals being transmit-beamformed using transmit beams of the one of the transmit beam groups in the at least one transmitting node with receive-beamforming using receive beams of one of the receive beam groups.
Abstract:
The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
Abstract:
A massive antenna-based pattern/polarization beam division multiple access method and an apparatus performing the same are provided. The massive antenna-based pattern/polarization beam division multiple access method includes generating a plurality of beam sectors for each antenna array by using a plurality of pattern/polarization antenna arrays and performing MIMO transmission in each of the plurality of beam sectors, wherein the plurality of pattern/polarization antenna arrays each have a different radiation pattern.
Abstract:
A method for controlling the charging of segments for an online electric vehicle is described. In some situations, the method comprises: (a) receiving, from segments, information on the speed and position of the vehicle entering the range of the power-supplying device; and (b) controlling the charging/discharging timing of the current segment from which the vehicle is leaving and the next segment into the range of which the vehicle is to enter, in accordance with the information on the speed and position of the vehicle. The charging/discharging response delay characteristics of the segments may be considered.
Abstract:
The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
Abstract:
The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
Abstract:
A method to operate a receiving node is provided. The method includes receiving a first set of reference signals being transmit-beamformed using transmit beam groups in at least one transmitting node with receive-beamforming using receive beam groups. The method also includes transmitting information to select one transmit beam group of the transmit beam groups to one of the at least one transmitting node. The method further includes receiving a second set of the reference signals being transmit-beamformed using transmit beams of the one of the transmit beam groups in the at least one transmitting node with receive-beamforming using receive beams of one of the receive beam groups.