Patent application number | Description | Published |
20120189037 | RELAY AND DATA RELAY METHOD - Disclosed is a relay. The relay includes: a reception unit configured to receive signals from a transmitter; a processor configured to estimate a channel with respect to the transmitter based on a pilot signal of the transmitter among receiving signals, remove the pilot signal from among the received signals, amplify the signals without the pilot signal according to the estimated channel, and insert a pilot signal of the relay into the amplified signals; and a transmitter transmitting the signals including the pilot signal of the relay under the control of the processor. | 07-26-2012 |
20130221910 | MOBILE TERMINAL AND WIRELESS CHARGING MODULE THEREFOR - The present invention provides a mobile terminal which, when wireless (contactless) charging of a battery is performed by approximating a transmission coil of a charging unit (charging pad) and a reception coil provided in a wireless charging module of a mobile terminal, can adjust the saturation magnetic flux density and eddy currents of a shield sheet to which the reception coil is attached, the shield sheet being provided in the wireless charging module. When the reception coil is placed on the shield sheet to perform wireless charging, the saturation magnetic flux density and eddy current generation in the shield sheet are adjusted for wireless charging purpose because a part of the region in which the magnetic flux density is most quickly saturated was clipped off from the shield sheet. Thus, charging efficiency can be increased, and the problem of heat generation of the shield sheet can be effectively. | 08-29-2013 |
20130267170 | ANTENNA AND MOBILE TERMINAL HAVING THE SAME - An antenna and a mobile terminal having the antenna are discussed. According to an embodiment, the antenna can include a flexible board having a first region and a second region; a high frequency antenna pattern formed in the first region of the flexible board to transceive a wireless signal by detecting a magnetic flux; a low frequency antenna pattern formed in the second region of the flexible board to generate an induced current; and a magnetic sheet stacked on one surface of the flexible board to simultaneously cover both of the high frequency antenna pattern and the low frequency antenna pattern, the magnetic sheet having a high magnetic permeability for both a high frequency and a low frequency. | 10-10-2013 |
20130281160 | MOBILE TERMINAL AND CONTROLLING METHOD THEREOF - A mobile terminal including a power supply unit including a chargeable battery; a wireless power transmitting unit configured to transform power supplied from the battery into a magnetic field, and to transmit the magnetic field to at least one other terminal placed within a predetermined distance from the mobile terminal; and a controller configured to control an amount of power supplied from the battery to the wireless power transmitting unit. | 10-24-2013 |
20130304583 | MOBILE TERMINAL AND CONTROL METHOD THEREOF - The present disclosure relates to a mobile terminal, and more particularly, to a mobile terminal capable of wireless charging and a control method thereof. A mobile terminal according to an embodiment of the present disclosure may include a power receiving unit formed to receive power in a wireless manner from a wireless charging pad; a wireless communication unit configured to transmit user information to a server or the wireless charging pad, and receive advertisement content associated with the user information from the server or the wireless charging pad; a display unit formed to display the advertisement content; and a controller configured to manage history information displayed with the advertisement content on the display unit and control the power receiving unit to receive power in a wireless manner from the wireless charging pad based on the history information. | 11-14-2013 |
20140192918 | METHOD AND APPARATUS FOR REPORTING DOWNLINK CHANNEL STATE - A method of reporting a channel state to a base station supporting downlink multiple input multiple output in a wireless communication system includes measuring a downlink channel based on a downlink signal received from the base station, and reporting a codebook index for precoding of the downlink signal according to the measurement of the downlink channel. The codebook for precoding includes an improved codebook (hereinafter, referred to as an improved 4Tx codebook) having a dual structure composed of a codebook for wideband and a codebook for subband, for 4 transmit (4Tx) antenna ports, and the improved 4Tx codebook includes sub-codebooks obtained by sub-sampling the codebook for subband according to priority. | 07-10-2014 |
20150181464 | METHOD AND APPARATUS FOR RECEIVING OR TRANSMITTING INTERFERENCE INFORMATION - A method for receiving information for interference cancellation of a user equipment (UE) includes detecting downlink control information including interference control information for a specific resource block (RB) scheduled for the UE by using an index of the specific RB, wherein the interference control information for the specific RB includes control information related to interference signal in the specific RB and indicates that the interference control information for the specific RB is the same as interference control information for one or more RBs having a series of indices subsequent to the index of the specific RB, and performing cancellation of interference signal corresponding to the interference control information in the specific RB and the one or more RBs using the interference control information for the specific RB. | 06-25-2015 |
20150341092 | METHOD FOR REPORTING CHANNEL STATE INFORMATION FOR 3-DIMENSIONAL BEAM FORMING IN WIRELESS COMMUNICATIONS SYSTEM - Disclosed is a method for reporting the channel state information for a 3-dimensional beam forming in a wireless communications system and an apparatus therefor. A method for enabling a terminal to transmit the channel state information (CSI) in a wireless communications system according to an embodiment of the present invention includes the steps of: receiving a reference signal from a base station supporting a 2-dimensional antenna array; determining the CSI by means of the reference signal; and transmitting the determined CSI to the base station. The CSI may include the CSI set for each of T (T≧1) beam candidates defined in one dimension of the 2-dimensional antenna array. The CSI set includes at least one of the rank index (RI) in the one dimension, the pre-coding matrix (PMI) index in the one dimension, the RI in the two dimensions, the PMI in the two dimensions, and the channel quality index (CQI). Here, the RI in the two dimensions is variable for each of the T beam candidates. | 11-26-2015 |
20150341101 | METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEM - A method for estimating a channel transmitted through a 2-dimensional (2D) array antenna by a user equipment (UE) in a wireless communication system comprising calculating channel estimation values for each of horizontal and vertical direction antenna arrays of the 2D array antenna in a channel state information-reference signal (CSI-RS) resource using a discrete Fourier transform (DFT) based channel estimation scheme, wherein the channel estimation values are expressed as one or more non-zero channel taps due to multipath fading; deriving channel vectors for each of the horizontal direction antenna arrays and channel vectors for each of the vertical direction antenna arrays using L significant power sums of filtered channel taps; and calculating channel vectors of the 2D array antenna by operating Kronecker product of the channel vectors for each of the horizontal direction antenna arrays and the channel vectors for each of the vertical direction antenna arrays. | 11-26-2015 |