Patent application number | Description | Published |
20100011046 | APPARATUS AND METHOD FOR VARIABLE FAST FOURIER TRANSFORM - The present invention relates to an apparatus and method for variable fast Fourier transform. According to an embodiment of the present invention, two n-point fast Fourier transform (FFT) processors are used to generate two n-point FFT output data or one | 01-14-2010 |
20100278063 | METHOD FOR CONTROLLING INTERFERENCE - A method for controlling interference between a plurality of neighboring base stations for a terminal by a serving base station of the terminal in a communication system is provided. The method includes receiving interference amount information on a first region of a downlink frame from the terminal, determining an interference amount estimate for the first region based on the received interference amount information, comparing the determined interference amount estimate with an interference amount tolerance for the first region; and transmitting an interference indicator requesting reduction in transmission power for the first region to the plurality of neighboring base stations when the interference amount estimate exceeds the interference amount tolerance. | 11-04-2010 |
20100279700 | RESOURCE ALLOCATION AND POWER CONTROL METHOD - A method for controlling transmission power in a mobile communication system is provided. According to the method, a serving base station arranges a plurality of terminals in ascending order according to Carrier-to-Interference-and-Noise-Ratios (CINRs) based on the CINR measured by the plurality of terminals, classifies the plurality of terminals in one of a first group and a second group according to the order, allocates a subchannel of a data region corresponding to the first group from among a plurality of data regions included in the uplink frame to a terminal classified as the first group, and allocates a subchannel of a data region corresponding to the second group from among the data regions to a terminal classified as the second group. | 11-04-2010 |
20110092235 | APPARATUS FOR MEASURING RADIO ENVIRONMENT OF BASE STATION AND METHOD FOR MEASURING THE SAME - A method and apparatus for measuring a radio environment of a base station is provided. The method includes respectively selecting one or more frames for measuring a radio environment in a first mode in which an Over-The-Air Receiver (OTAR) of the base station is initialized and a second mode in which the OTAR is active, continuously measuring the radio environment based on the selected one or more frames in the first mode and intermittently measuring the radio environment based on the selected one or more frames in the second mode. | 04-21-2011 |
20110092239 | APPARATUS FOR MANAGING RADIO RESOURCES OF BASE STATION AND METHOD FOR MANAGING THE SAME - A method for managing radio resources of a base station is provided. The method includes evaluating a radio environment between a base station and at least one neighboring base station or a radio environment between the base station and terminals connected to the base station, if the evaluated radio environment does not meet predetermined criteria, selecting a new radio resource, deactivating the existing radio resource, and reactivating the new radio resource. Accordingly, the radio resources can be efficiently managed. | 04-21-2011 |
20110141933 | METHOD AND APPARATUS FOR CONTROLLING POWER FOR UPLINK - A method and apparatus for controlling power for uplink are provided. When a base station is moving or unable to communicate with others, at least one interference amount is estimated for a neighboring base station based on a path gain between a terminal and the neighboring base station and a transmission power of each encoding packet size and transmission format included in a candidate group related to scheduling transmission power parameters. A target interference amount is determined based on an interference amount control value and an initial target interference amount according to a processing load of a serving base station, and one interference amount is selected from estimated interference amounts based on the target interference amount. The terminal determines the transmission power based on an encoding packet size and a transmission format corresponding to the selected interference amount. | 06-16-2011 |
20110216684 | MULTI-CARRIERS MANAGING DEVICE AND METHOD AND SLEEP MODE OPERATING METHOD OF TERMINAL - A multi-carriers management device of a communication system supporting multi-carriers requests a terminal attempting to enter a sleep window to change a primary carrier, and transmits a control message to the terminal through the changed primary carrier during the sleep window. | 09-08-2011 |
20120039271 | METHOD AND APPARATUS FOR DISTRIBUTED SCHEDULING IN WIRELESS MESH NETWORK BASED ON OFDMA - A method and apparatus for distributed scheduling within an orthogonal frequency division multiple access (OFDMA)-based wireless mesh network may be provided. A requester and a granter in the wireless mesh network may perform three way-handshaking using distributed scheduling messages. A plurality of distributed scheduling messages may use different sub-channels. The request may reserve sub-channels to be used by respective scheduling messages. | 02-16-2012 |
20120093099 | METHOD AND APPARATUS USING FRAME STRUCTURE FOR WIRELESS MESH NETWORKS - Provided is a frame structure designed for distributed access control and OFDMA transmission in a wireless mesh network. Also, a communication method and a network node based on the frame structure are provided. Mesh nodes included in the wireless mesh network may use the frame structure and thus, may have a high prospect of transmitting a network configuration information message and scheduling information for obtaining a resource. Also, a scheduling process of the mesh nodes may be completed within a short period based on the frame structure. | 04-19-2012 |
20120094654 | DEVICE AND METHOD FOR MANAGING BASE STATION AND TERMINAL - A base station management method according to the present invention is a method for managing an operation mode of a base station, and includes determining whether a terminal exists in a cell managed by the base station and operating in a low duty operation mode (LDM) when no terminal exists in the cell. | 04-19-2012 |
20120155304 | METHOD AND APPARATUS FOR ACCESS CONTROL IN WIRELESS COMMUNICATION SYSTEM - In an orthogonal frequency division multiple access (OFDMA)-based wireless mesh network, a communication node receives information regarding a next transmission time of a 1-hop node and a 2-top node through the 1-hop node, calculates next transmission intervals of the 1-hop node and the 2-hop node, determines a next transmission time of the communication node by using the next transmission intervals of the 1-hop node and the 2-hop node, and then transmits, to an 1-hop node of the communication node, the information of the next transmission time together with the information of the transmission time of the 1-hop node, received from the 1-hop node. | 06-21-2012 |
20120157131 | METHOD OF LOW-DUTY MODE OPERATION OF FEMTOCELL BASE STATION - A method of setting a cycle of a low-duty mode in a femto base station is provided. The cycle of the low-duty mode has a pattern in which an available interval and an unavailable interval repeatedly appear, and the available interval is set to include a paging listening interval of a paging cycle. A method of setting a cycle of a low-duty mode in a femto base station having a service area overlapping with that of a macrocell is provided. An unavailable interval is set by taking the overlapping degree of the service area of the femto base station with the macrocell into consideration. A method of setting a cycle of a low-duty mode in a plurality of femto base stations operated in the low-duty mode is provided. The same cycle can be set for a plurality of base stations. | 06-21-2012 |
20120163171 | ROUTING METHOD AND APPARATUS FOR SUPPORTING QoS IN WIRELESS NETWORK - A method for routing and setting up a connection to provide Quality of Service (QoS) required in a wireless network is provided, which allows to use a path capable of providing QoS higher than a certain level between a source node and a destination node. A routing apparatus includes: a connection management unit that receives a connection setup request directed to a destination node, determines a predicted path leading to the destination node and the next node, and transmits a connection setup request to the next node; a resource allocation unit that allocates resources so as to satisfy required QoS; a routing unit that measures available QoS information of a link and enables the exchange of information of the link including the QoS information with the nodes of the network; and a routing information management unit that stores received routing information. | 06-28-2012 |
20130148595 | METHOD AND APPARATUS FOR MANAGING WIRELESS NETWORK - If a target node that enters into a transmission range is sensed, a mesh node of a wireless communication system selects an agent node having itself and a target node as a neighboring node among a plurality of neighboring nodes to form a link with the target node through the agent node. Also, the mesh node deletes the formed link if a target node that is out of a transmission range among a plurality of neighboring nodes is sensed, and forms a substitution path for at least a portion among an entire path of a connection including the deleted link. | 06-13-2013 |
20130250775 | METHOD OF FREQUENCY SYNCHRONIZATION IN DISTRIBUTED NETWORK - A method and apparatus for synchronizing a carrier frequency of a node included in a distributed network are provided. The apparatus includes a frequency offset estimating unit, an offset average value calculating unit, and a frequency adjustment value calculating unit. The method includes receiving preambles from a plurality of nodes adjacent to the node, estimating offsets of the carrier frequencies from the received preambles for each of the plurality of neighbor nodes, calculating an average value of the estimated offsets, calculating an adjustment value of the carrier frequencies with respect to the entirety of the plurality of neighbor nodes by using the average value, and adjusting a carrier frequency of the node on the basis of the adjustment value. | 09-26-2013 |
20130265898 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE FOR AVOIDING INTERFERENCE OF WIRELESS COMMUNICATION SYSTEM - In a wireless communication system, a transmitting node selects a simultaneously transmit-unavailable node of a 1-hop node of the transmitting node, and allocates a transmitting resource in transmissible resources, except for a transmission scheduled resource of a simultaneously transmit-unavailable node. Further, a receiving node selects a simultaneously receive-unavailable node of a 1-hop node, which is a transmission target of the receiving node selects a simultaneously transmit-unavailable node of a 1-hop node of the receiving node, and allocates a receiving resource in receivable resources, except for a transmission scheduled resource to a simultaneously transmit-unavailable node of a simultaneously receive-unavailable node of the 1-hop node, which is a transmission target of the receiving node. | 10-10-2013 |
20140104999 | COMMUNICATION APPARATUS AND DATA TRANSMISSION METHOD THEREOF - A communication apparatus and a data transmission method of the communication apparatus are disclosed. The communication apparatus receives feedback messages corresponding to failed data from receivers, generates a feedback matrix in response to the feedback messages, selects transmission candidate data from the feedback matrix, performs network coding on the transmission candidate data, and transmits retransmission data generated by the network coding to the receivers. Transmission candidate data is selected from the feedback matrix, and network coding is performed on the transmission candidate data to retransmit data to the receivers. | 04-17-2014 |
20140133413 | METHOD AND APPARATUS FOR DESIGNING SIGNALS TO MITIGATE SUBCARRIER INTERFERENCE - In order to reduce interference that may be generated when a plurality of signals having different subcarrier intervals are received, a method of controlling a signal having a larger subcarrier interval to be suitable for a signal having a smaller subcarrier interval and a method of removing CFO interference are provided. Subcarrier intervals of a plurality of signals to be transmitted by wireless terminals are compared with each other, and signals are designed so that a signal having the largest subcarrier interval may be repeatedly transmitted. Therefore, interference that may be generated among different kinds of signals when the base station simultaneously receives the different kinds of signals to perform Fourier transform may be mitigated. In addition, interference caused by a CFO may be removed by previously compensating the CFO estimated in a time domain to perform Fourier transform. | 05-15-2014 |
20140185592 | METHOD AND APPARATUS FOR CORRECTING REFERENCE TIME FOR DISTRIBUTED TIME SYNCHRONIZATION - In a wireless communication system formed of a plurality of nodes, an arbitrary node receives messages broadcasted from neighbor nodes and calculates amounts of changes in receiving times that are differences between receiving times when the messages are currently received and receiving times when the messages are previously received with respect to the neighbor nodes. The node corrects reference time thereof based on the amounts of changes calculated with respect to the neighbor nodes. | 07-03-2014 |
20140293828 | METHOD AND APPARATUS FOR MANAGING SYNCHRONIZATION GROUPS IN WIRELESS COMMUNICATION SYSTEM - A synchronization group management apparatus of a node recognizes a node belonging to a different group if groups having mobility are moved and located in the same area, and performs an operation of merging the different groups into one group by changing the frame start time and the synchronization reference time of the node. | 10-02-2014 |
20140293830 | METHOD AND APPARATUS FOR EXCHANGING NETWORK CODING-BASED INFORMATION - An information exchange apparatus of each node for sharing information between a plurality of nodes receives request information from an adjacent node and determines an information transmitting node based on information that each node holds and request information from the adjacent node, and an information exchange apparatus of a node that is determined to be an information transmitting node generates candidate transmitting information by performing network coding of at least one information set of held information, determines one of candidate transmitting information sets as transmitting information, and transmits the candidate transmitting information set to the adjacent node. | 10-02-2014 |
20150080004 | METHOD AND APPARATUS FOR BEAMFORMING IN WIRELESS COMMUNICATION SYSTEM - A beamforming apparatus and method for expanding coverage of a control channel are provided, by which neighboring communication devices are classified according to the number of beams that they can receive, and therefore the frequency or period of beam transmission is adjusted to transmit a control channel by a beamforming method. Hence, an overhead reduction and an increase in transmission rate can be achieved, and coverage holes can be prevented. | 03-19-2015 |
Patent application number | Description | Published |
20080278795 | FLEXIBLE ELECTROPHORETIC DISPLAY AND METHOD OF FABRICATING THE SAME - Provided is a flexible electrophoretic display. The flexible electrophoretic display includes a grayscale representation unit for representing grayscales in unit areas using reflection and transmission; upper and lower electrodes for applying a voltage to the grayscale representation unit; and a plurality of colored particles formed on the upper electrode for representing color. The upper electrode is formed of a transparent conductive material. External incident light is reflected by the colored particles formed on the upper electrode for color implementation by the flexible electrophoretic display. Thus, a compact, flexible electrophoretic display capable of displaying a high-definition image with multi-color and multi-gradation can be implemented by using multi-colored particle layers formed of metallic nano-particles. | 11-13-2008 |
20100062555 | METHOD OF FORMING CRYSTALLIZED SILICON AND METHOD OF FABRICATING THIN FILM TRANSISTOR AND LIQUID CRYSTAL DISPLAY USING THE SAME - A method of crystallizing amorphous silicon comprises forming an amorphous silicon layer on a substrate; forming an insulating layer on the amorphous silicon layer; forming a heat distributing metal layer on the insulating layer; and forming a thermite layer on the heat distributing metal layer. Ignition heat is then applied to ignite the thermite layer and generate sufficient localized exothermic heat from the ignited thermite layer so as to crystallize the amorphous silicon layer. The substrate beneath the amorphous silicon layer can be a heat sensitive substrate which is not substantially deformed by the localized crystallizing heat applied to the top portion of the amorphous silicon layer by way of the heat distributing metal layer and the insulating layer. | 03-11-2010 |
20100087051 | LOCAL CRYSTALLIZATION BY HEAT TREATMENT - Disclosed is a crystallization apparatus capable of locally crystallizing amorphous silicon. The crystallization apparatus includes a heat emission part, a support part and a roller. The heat emission part emits heat upon receiving a heat emission source. The support part supports the heat emission part and provides the heat emission source to the heat emission part. The roller receives the heat emission part and has at least one opening to provide heat to a target (e.g., amorphous silicon). Local crystallization is performed without causing damage to a substrate. | 04-08-2010 |
20100251936 | METHOD OF FABRICATING LIQUID FOR OXIDE THIN FILM - A method of fabricating a liquid for an oxide thin film is provided, which includes mixing at least two kinds of dispersoids selected from the group consisting of a Zinc compound, an Indium compound, a Gallium compound, a Tin compound and a Thallium compound, with dispersion media corresponding to the selected dispersoids to form a dispersion system, and stirring and aging the dispersion system at a predetermined temperature for a predetermined time, wherein a molar ratio of the Zinc compound to each of the Indium compound, Gallium compound, Tin compound and Thallium compound is 1:0.1 to 1:2. According to the present invention, the liquid for the oxide thin film may be fabricated by a sol-gel method making it capable of being implemented in mass production in a simple and low-cost manner as opposed to the conventional vacuum deposition method. | 10-07-2010 |
20100258793 | Solution composition for forming oxide thin film and electronic device including the oxide thin film - A solution composition for forming an oxide thin film may include a first compound including zinc, a second compound including indium, and a third compound including magnesium or hafnium, and an electronic device may include an oxide semiconductor including zinc, indium, and magnesium. The zinc and hafnium may be included at an atomic ratio of about 1:0.01 to about 1:1. | 10-14-2010 |
20120080678 | COMPOSITIONS FOR SOLUTION PROCESS, ELECTRONIC DEVICES FABRICATED USING THE SAME, AND FABRICATION METHODS THEREOF - Exemplary embodiments provide compositions for a solution process, electronic devices fabricated using the same, and fabrication methods thereof An oxide nano-structure is formed using a sol-gel process. An oxide thin film transistor is formed using the oxide nano-structure. | 04-05-2012 |
20120168747 | COMPOSITION FOR OXIDE THIN FILM, PREPARATION METHOD OF THE COMPOSITION, METHODS FOR FORMING THE OXIDE THIN FILM USING THE COMPOSITION, AND ELECTRONIC DEVICE USING THE COMPOSITION - Provided are a composition for an oxide semiconductor, a preparation method of the composition, a method for forming an oxide semiconductor thin film using the composition, and a method for forming an electronic device using the composition. The composition for an oxide semiconductor includes a compound for an oxide thin film and a stabilizer for adjusting conductivity of the oxide thin film. The stabilizer is included with the mole number of two to twelve times larger than the total mole number of the compound. | 07-05-2012 |
20120313096 | OXIDE SEMICONDUCTOR COMPOSITION AND PREPARATION METHOD THEREOF, METHOD OF FORMING OXIDE SEMICONDUCTOR THIN FILM, METHOD OF FABRICATING ELECTRONIC DEVICE AND ELECTRONIC DEVICE FABRICATED THEREBY - Provided are an oxide semiconductor composition, a preparation method thereof, an oxide semiconductor thin film using the composition, and a method of forming an electronic device. The oxide semiconductor composition includes a photosensitive material and an oxide semiconductor precursor. | 12-13-2012 |
20130036943 | SOLUTION COMPOSITION FOR FORMING OXIDE THIN FILM AND ELECTRONIC DEVICE INCLUDING THE OXIDE THIN FILM - A solution composition for forming an oxide thin film may include a first compound including zinc, a second compound including indium, and a third compound including magnesium or hafnium, and an electronic device may include an oxide semiconductor including zinc, indium, and magnesium. The zinc and hafnium may be included at an atomic ratio of about 1:0.01 to about 1:1. | 02-14-2013 |
20130059414 | COMPOSITIONS USED IN FORMATION OF OXIDE MATERIAL LAYERS, METHODS OF FORMING AN OXIDE MATERIAL LAYER USING THE SAME, AND METHODS OF FABRICATING A THIN FILM TRANSISTOR USING SAME - Methods of forming an oxide material layer are provided. The method includes mixing a precursor material with a peroxide material to form a precursor solution, coating the precursor solution on a substrate, and baking the coated precursor solution. | 03-07-2013 |
20130161620 | COMPOSITION FOR AN OXIDE THIN FILM, A PREPARATION METHOD OF THE COMPOSITION, A METHOD FOR FORMING AN OXIDE THIN FILM USING THE COMPOSITION, AN ELECTRONIC DEVICE INCLUDING THE OXIDE THIN FILM, AND A SEMICONDUCTOR DEVICE INCLUDING THE OXIDE THIN FILM - Provided are a composition for an oxide thin film, a preparation method of the composition, a method for forming an oxide thin film using the composition, an electronic device including the oxide thin film, and a semiconductor device including the oxide thin film. The composition for the oxide thin film includes a metal precursor and nitric acid-based stabilizer. The metal precursor includes at least one of a metal nitrate, a metal nitride, and hydrates thereof. | 06-27-2013 |
20130171779 | COMPOSITION FOR MANUFACTURING OXIDE SEMICONDUCTOR AND METHOD FOR MANUFACTURING THIN-FILM TRANSISTOR SUBSTRATE USING THE SAME - According to a method of manufacturing a thin film transistor substrate, a composition including a metal oxalate and a solvent for manufacturing an oxide semiconductor is coated to form a thin film, the thin film is annealed, and the thin film is patterned to form a semiconductor pattern. | 07-04-2013 |
20130343920 | VARIABLE DISPLACEMENT SWASH PLATE TYPE COMPRESSOR - Provided is a variable displacement swash plate type compressor including: a lug plate fixed to a driving shaft; and a swash plate combined to the lug plate and whose tilt angle is varied according to rotatory motion, wherein the lug plate includes a protruding portion protruding towards the swash plate, and a rotatory power projection transmitting power for rotating the swash plate is formed at a leading end of the protruding portion through the swash plate. Accordingly, a varying operation between a maximum tilt angle and a minimum tilt angle of the swash plate and a rotatory power transmitting operation for rotating the swash plate are performed at different locations, thereby simultaneously improving the varying operation and the rotatory power transmitting operation of the swash plate. | 12-26-2013 |
20140000480 | METHOD OF FABRICATING LIQUID FOR OXIDE THIN FILM | 01-02-2014 |
20140195356 | Advertisement display method of mobile communication terminal using button bar or notification bar, and apparatus thereof - The present invention relates to a method for displaying an advertisement in a mobile communication terminal using a button bar (icon) or an indication bar (icon), and an apparatus thereof, the method comprising the steps of: sensing whether a user operates a call allowance button bar; and inserting and displaying advertisement contents on a predetermined first set screen (or area) within the call allowance button bar when sensing the user operation for the call allowance button bar according to the sensed result. In addition, the present invention can effectively provide the advertisement for the user by using the call allowance/rejection button bar (icon) or the indication bar (icon) such as a character and the like. | 07-10-2014 |
20140239292 | METHODS OF FORMING OXIDE THIN FILM AND ELECTRICAL DEVICES AND THIN FILM TRANSISTORS USING THE METHODS - Provided are a method of forming an oxide thin film and an electrical device and thin film transistor using the method. The method includes forming an oxide thin film on a substrate by applying a precursor solution; and performing a thermal treatment process on the substrate under a pressurized atmosphere using a gas at about 100° C. to about 400° C. | 08-28-2014 |
20140367603 | GLASS FIBER BOARD COMPRISING INORGANIC BINDER AND METHOD FOR PREPARING THE SAME - The present invention provides a glass fiber board comprising a glass fiber and an inorganic binder, wherein the inorganic binder comprises an aluminum phosphate. | 12-18-2014 |
20150064839 | METHOD OF FORMING TIN OXIDE SEMICONDUCTOR THIN FILM - A method of forming a tin oxide semiconductor thin film includes preparing a precursor solution including a tin oxide semiconductor, coating the precursor solution on a substrate; and performing a heat treatment on the substrate coated with the precursor solution. A tin compound having a different tin valence according to a semiconductor type of the tin oxide semiconductor may be used in the precursor solution. | 03-05-2015 |
20150069382 | THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFACTURING THE SAME - A thin film transistor substrate includes a substrate, a data line disposed on the substrate and which extends substantially in a predetermined direction, a light blocking layer disposed on the substrate and including a metal oxide including zinc manganese oxide, zinc cadmium oxide, zinc phosphorus oxide or zinc tin oxide, a gate electrode disposed on the light blocking layer, a signal electrode including a source electrode and a drain electrode spaced apart from the source electrode, where the source electrode is connected to the data line, and a semiconductor pattern disposed between the source electrode and the drain electrode. | 03-12-2015 |