Patent application number | Description | Published |
20110178987 | APPARATUS AND METHOD FOR PROCESSING DATA ACCORDING TO REMOTE CONTROL IN DATA STORAGE DEVICE - A method and apparatus for processing data at a data storage device according to remote control are provided. In response to a remote control permission request being received from a remote control device, identification information included in the remote control permission request may be authenticated. A remote control command according to a right corresponding to the identification information may be performed when the remote control command is received from the remote control device. | 07-21-2011 |
20120157002 | MOBILE NETWORK CONTROL APPARATUS AND ENERGY SAVING METHOD - Provided are a mobile network control apparatus and energy saving method. The mobile network control apparatus for may calculate a first amount of total consumed power consumed by m base stations to provide a first cell as a coverage range, and a second amount of total consumed power consumed by n base stations to provide a second cell including the first cell as a coverage range. The mobile network control apparatus may save energy by initiating an operation of the n base stations on a high power mode, and by suspending an operation of a remaining base station excluding the n base stations if the first amount of total consumed power is greater than the second amount of total consumed power. | 06-21-2012 |
20120331323 | DEVICES AND METHODS FOR SAVING ENERGY THROUGH CONTROL OF SLEEP MODE - A system for saving energy through control of a sleep mode, and a method of operating the system are provided. The energy-saving system may enable a proxy device to maintain a minimum basic setup necessary for a communication when a host device enters a sleep mode, and may omit an operation performed based on the basic setup when the host device switches to a communication mode, thereby enabling a smooth switch between the sleep mode and the communication mode. | 12-27-2012 |
20130028160 | COMMUNICATION METHOD AND DEVICE FOR ENHANCING ENERGY EFFICIENCY - Provided is a method and device for increasing energy efficiency by adaptively performing clipping with respect to an input signal. The method may adaptively determine a clipping ratio (CR) based on a modulation method of the communication device and perform clipping based on the determined CR. | 01-31-2013 |
20130244716 | METHOD FOR DETERMINING TRANSMISSION POWER IN MIMO SYSTEM BASED ON COOPERATIVE TRANSMISSION - A method for determining a transmission power in a multi-input multi-output (MIMO) system based on a cooperative transmission is provided. The method includes setting a power constraint condition of a transmitter and target quality information of a receiver. The method further includes determining the transmission power to be allocated to the transmitter to transmit the data to the receiver based on the power constraint condition and the target quality information. | 09-19-2013 |
20130286911 | METHOD AND APPARATUS FOR USER SCHEDULING IN MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM - A method and apparatus for user scheduling in a multi-user multiple input multiple output (MIMO) communication system are provided. The method includes identifying a user group comprising user terminals. The method further includes comparing power consumptions based on the user group. The method further includes scheduling the user terminals based on the comparing. | 10-31-2013 |
20140011508 | METHOD AND APPARATUS FOR DETERMINING NUMBER OF ANTENNAS IN MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM - A method of determining a number of antennas, includes calculating a power used by a transmitting device. The method further includes calculating a channel capacity of the transmitting device. The method further includes determining a number of antennas of the transmitting device to be used based on the power and the channel capacity. | 01-09-2014 |
20140287734 | METHODS OF SWITCHING OFF POWER OF BASE STATIONS WITHIN CELLULAR NETWORKS BY USING MESSAGE PASSING, AND BASE STATIONS AND CELLULAR NETWORK SYSTEMS USING THE METHODS - A method of determining whether to switch off a base station's own power in the base station within a cellular network may comprise: receiving terminal messages having real number values from terminals within cell coverage of the base station; calculating real number values of base-station messages individually regarding the terminals based on the received terminal messages; transmitting the base-station messages having the calculated real number values individually to the terminals; repeatedly performing the receiving, the calculating, and the transmitting until the calculated real number values of the base-station messages are converged to constant values; when the real number values of the base-station messages are converged, calculating a base-station message convergence value, which is one real number value regarding the terminals, based on the converged real number values of the terminal messages; and/or determining whether to switch off the base station's own power based on the base-station message convergence value. | 09-25-2014 |
20140348254 | METHOD AND APPARATUS FOR REDUCING PEAK-TO-AVERAGE POWER RATIO (PAPR) OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNAL AND TRANSMITTER - Methods and apparatus for reducing a peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) signal in an MIMO-OFDM communication system is provided, in which the method for reducing the PAPR of the OFDM signal may identify interference generated in an MIMO communication system, and adjust a clipping ratio (CR) for an effect of a clipping distortion to be less than an effect of interference. | 11-27-2014 |