Patent application number | Description | Published |
20100035552 | METHOD FOR PROVIDING SERVICE, AND METHOD AND APPARATUS FOR ALLOCATING RESOURCE IN WIRELESS COMMUNICATION SYSTEM - Provided is a method for providing a service, and a method and an apparatus for allocating a resource in a wireless communication system. Services to be provided to users are divided into one of primary and secondary services based on priority in terms of frequency utilization. A service is provided using frequency channel remaining after being used in the primary service in a time zone when frequency utilization rate of the primary service is a threshold value or less. Accordingly, when service data corresponding to the secondary service are received, a user terminal stores the service data in a storage unit. Then, when the user requests provision of the corresponding service, the user terminal provides the stored service data to the user. | 02-11-2010 |
20100151877 | SMART RADIO COMMUNICATION SYSTEM AND METHOD OF OPERATING THE SAME - Provided is a method of operating a smart radio communication system, the method including: collecting information associated with each of a plurality of radio access technologies (RATs) through an access to the plurality of RATs; receiving a type of a service, requested by a terminal, via a first RAT accessing the terminal among the plurality of RATs; selecting an optimal channel based on the collected information and the received type of the service; and transmitting a content corresponding to the service via the selected optimal channel. | 06-17-2010 |
20100266056 | METHOD AND APPARATUS FOR SCHEDULING MULTIPLE USERS IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - A multi-user scheduling method and apparatus in a Multiple-Input Multiple-Output (MIMO) system are disclosed. The multi-user scheduling method includes calculating a valid channel norm based on statistical characteristics of a channel for every user terminal, selecting a user set that maximizes the sum of valid channel norms and that includes as many user terminals as data are transmittable to simultaneously, and precoding transmission signals for the user terminals included in the user set according to a predetermined scheme. According to the present invention, the volume of computation required for multi-user selection is reduced greatly, thus making real-time implementation possible. | 10-21-2010 |
20120021692 | WIRELESS COMMUNICATION APPARATUS AND METHOD - A wireless communication apparatus and method are provided. The wireless communication apparatus includes: a transmission/reception side location recognizing unit recognizing the location of a transmission side and that of a reception side; a transmission power determining unit recognizing radio wave propagation characteristics according to the locations of the transmission side and the reception side, and determining transmission power in consideration of the radio wave propagation characteristics; a transmission time determining unit analyzing a transmission signal service type and determining a transmission time in consideration of a frequency usage fee if the transmission signal is not required to be transmitted in real time; and a transmission and reception unit transmitting the transmission signal according to the transmission power and the transmission time determined by the transmission power determining unit and the transmission time determining unit. | 01-26-2012 |
20130260754 | APPARATUS AND METHOD FOR POWER CONTROL USING SMALL BASE STATIONS - In a wireless communication system including a small base station and a macro base station, the small base station to perform power control may include: a user detector to detect a presence of a user terminal by monitoring whether a registration state of the user terminal served by the small base station corresponds to a registration complete state, a registration maintain state, or a registration release state; a control signal generator to generate a control signal for controlling power of at least one power device among a plurality of power devices included in a predetermined group, based on the detection result; and a control signal transmitter to transmit the control signal to the at least one power device among the plurality of power devices. | 10-03-2013 |
20130260755 | APPARATUS AND METHOD FOR POWER CONTROL USING SMALL BASE STATIONS - In a wireless communication system, a base station to perform power control may include: a user detector to detect a presence of a user terminal by monitoring whether a registration state of the user terminal served by the base station corresponds to a registration complete state, a registration maintain state, or a registration release state; a control signal generator to generate a control signal for controlling power of at least one power device among a plurality of power devices included in a predetermined group, based on the detection result; and a control signal transmitter to transmit the control signal to the at least one power device among the plurality of power devices. | 10-03-2013 |
20130260786 | METHOD AND APPARATUS FOR CONTROLLING FEMTOCELL BASE STATION - Disclosed are a method and an apparatus for controlling a femtocell base station which can effectively solve an inter-cell interference problem. A method of controlling a femtocell base station according to an exemplary embodiment of the present disclosure includes receiving pilot signals from one or more macro cell base stations located in surroundings of a femtocell and measuring intensities of the pilot signals; receiving use frequency information and pilot signal transmission power information from the one or more macro cell base stations; determining a position of the femtocell within a reference macro cell according to an intensity of a reference pilot signal having a maximum signal intensity among the received pilot signals; determining a use frequency of the femtocell according to the position of the femtocell; and determining a transmission power of the femtocell according to the use frequency and the intensity of the reference pilot signal of the femtocell. | 10-03-2013 |
20130331093 | MULTIMODE TERMINAL AND METHOD FOR RELAYING MOBILE COMMUNICATION USING THE SAME - Disclosed are a multimode terminal that may simultaneously enhance utilization of a device and efficiency of a network by enabling a mobile terminal supporting a plurality of communication schemes to additionally support a relay function, and a method of relaying communication using the multimode terminal. A communication relay method of a multimode terminal according to an exemplary embodiment of the present disclosure includes: searching, by a base station, for terminals that support a plurality of communication schemes; selecting, by the base station from among the searched terminals, a relay terminal that satisfies a predetermined condition for performing a multimode relay function; requesting, by the base station, the relay terminal to perform the multimode relay function; and relaying, by the relay terminal in response to the request of the base station, communication between the base station and a target terminal. | 12-12-2013 |
20130344879 | CELLULAR COMMUNICATION SYSTEM AND COMMUNICATION METHOD THEREOF - Disclosed is a cellular communication system allowing direct communication between terminals within a cell or simultaneous transmission and reception of signals between a base station and the terminals through a repeater to be made by introducing a universal link, and a communication method thereof. The communication method of the cellular communication system includes: transmitting, by a base station, universal link setting information and a transmission control signal to a first terminal within a cell, transmitting, by the base station, the universal link setting information and a reception control signal to a second terminal within the cell, and directly transmitting/receiving, by the first and second terminals, signals through the universal link. | 12-26-2013 |
20140023050 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES IN CELLULAR COMMUNICATION SYSTEM - An apparatus for allocating resources in a cellular communication system including a plurality of cells divides time resources of one period into a plurality of time division intervals, allocates one time division interval of the plurality of time division intervals for user terminals in a cell edge region, and controls at least one of a magnitude of one period and a magnitude of the plurality of time division intervals in accordance with distributions and load distributions of user terminals of the plurality of cells. | 01-23-2014 |
20140030775 | RECOMBINANT MICROORGANISM HAVING ABILITY TO PRODUCE [LACTATE-CO-GLYCOLATE] COPOLYMER FROM GLUCOSE, AND METHOD FOR PREPARING [LACTATE-CO-GLYCOLATE] COPOLYMER USING SAME - There is provided a recombinant microorganism having producibility of poly(lactate-co-glycolate) from glucose, and more particularly, a recombinant microorganism having producibility of poly(lactate-co-glycolate) without adding an exogenous glycolate precursor, and a method of preparing [poly(preparing lactate-co-glycolate)] using the same. According to the present invention, the poly(lactate-co-glycolate) in which the concentration of the glycolate fraction is high may be prepared at a high concentration without supplying exogenous glyoxylate. Therefore, the present invention may be effectively used for treatment. | 01-30-2014 |
20140162678 | METHOD AND APPARATUS FOR DYNAMIC RESOURCE ALLOCATION - A dynamic resource allocating apparatus of a first base station managing a first cell in a cellular communication system calculates an interference metric of each user terminal received by each user terminal from a plurality of neighboring cells, calculates a coupling factor between the first base station and each neighboring base station of each neighboring cell by using the interference metric and a load of each user terminal, calculates available cell boundary resources of neighboring cells by using the coupling factor with respect to each neighboring base station, and allocates resources by using the cell boundary resources allocated to the first cell and the available cell boundary resources of the neighboring cells. | 06-12-2014 |
20140195972 | METHOD AND APPARATUS FOR MANAGING PROGRAMS OR ICONS - A terminal is provided. The terminal includes a memory, and a processor for managing icons of programs installed in the memory. The processor determines a criterion for icon arrangement, arranges the icons according to the criterion for icon arrangement, and displays all or some of the arranged icons on a screen. The criterion for icon arrangement comprises at least one of most recently/frequently used, time, place, pattern of program use, and category. | 07-10-2014 |
20140295866 | METHOD AND APPARATUS FOR DYNAMICALLY ALLOCATING RESOURCE - A dynamic resource allocating apparatus of a first base station that manages a first cell in a cellular communication system including the first cell and a plurality of cells adjacent to the first cell determines time resource division vector in which one time resource division period is formed of a plurality of time division intervals and calculates time resource division vector for maximizing utilities of user terminals in a set up objective function to update the time resource division vector. Among the plurality of time division intervals, a first time division interval is operated by a time resource reuse coefficient 1 for user terminals positioned in center regions of a first cell and a plurality of adjacent cells, and the remaining time division intervals excluding the first time division interval are operated by a time resource reuse coefficient n for user terminals positioned at edges of the first cell and the plurality of adjacent cells. | 10-02-2014 |
20140355704 | METHOD AND APPARATUS FOR FORMING BEAM THROUGH ONE-WAY COOPERATIVE CHANNEL - A method of connecting base stations by a one-way cooperative channel forming a beam is provided. Since it is possible to determine directions of beams and to distribute power components by small amounts of calculations, it is possible to realize the base stations in a one-way cooperative situation with small expenses. In addition, the base stations according to the exemplary embodiment of the present invention may minimize the influence of interference generated by signals transmitted by other base stations through the one-way cooperative channel and the influence of interference generated by signals transmitted to other terminals. | 12-04-2014 |
20150055736 | METHOD AND APPARATUS FOR DECODING RECEIVED SEQUENCE - A method and apparatus for embodying an algorithm that can simultaneously restore a present codeword and an interference codeword with low complexity so as to obtain high throughput in a wide interference signal power level are provided. By simultaneously restoring a desired codeword and an interference codeword by considering an interference signal upon decoding, high throughput performance can be obtained regardless of a power level of the interference signal. | 02-26-2015 |
20150063316 | METHOD AND APPARATUS FOR ALLOCATING RESOURCE - In a cellular communication system including a plurality of cells, a resource allocation apparatus of a base station determines a resource division ratio of a present resource frame using a traffic load of a plurality of cells that are measured for an immediately preceding resource frame and marginal utility of each partition, divides a present resource frame into a plurality of partitions according to the determined resource division ratio, and allocates a plurality of partitions to a user. | 03-05-2015 |