| Patent application number | Description | Published |
|---|
| 20090017793 | SYSTEM AND METHOD FOR PROVIDING RECORDING SERVICE OF COMMUNICATION IN BASE STATION - The present invention relates to a system and method for providing a recording service. According to an embodiment of the present invention, while a user uses a conversation service by a mobile communication terminal, it is possible to record contents of conversation, which are stored in a base station and correspond to a predetermined period before the present time, as well as contents of conversation after the present time by using a permanent storage medium, according to a user's demand within a predetermined time during conversation or after completion of the conversation. Accordingly, when needing to record the contents of the present conversation, the user can store necessary contents through a simple operation without again requesting conversation to a person. | 01-15-2009 |
| 20090147894 | METHOD FOR DETECTING TRANSMISSION SYMBOLS IN MULTIPLE ANTENNA SYSTEM - The present invention relates to a transmission symbol detection method in a multiple antenna system. In the present invention, when a channel matrix is estimated through channel estimation, a receiving side calculates a Q matrix and an R matrix through QR decomposition that is more simplified than a typical QR decomposition from an augmented channel matrix that includes the estimated channel matrix. In addition, the receiving side detects symbols having the minimum Euclidean metric by using the two matrixes, as transmission symbols. | 06-11-2009 |
| 20090157681 | METHOD FOR PROCESSING DATA AND SYSTEM THEREOF - The present invention relates to a data processing method and system for checking an interactive communication sequence (ICS) relating to a plurality of users in a communication record by using a variable time window, and checking an interactive communication sequence pattern (ICSP) that is a frequently generated interactive communication sequence from among the checked interactive communication sequences. The data processing method includes: (a) storing an inverse pair in a communication record in an interactive communication sequence set or a candidate set that is a set of inverse pairs that can be part of the interactive communication sequence; (b) generating an interactive communication sequence having a length other than 1 by combining interactive communication sequences included in the interactive communication sequence set; and (c) generating an interactive communication sequence having a length other than 1 by combining the inverse pair included in the candidate set and one of the interactive communication sequence included in the interactive communication sequence set of (a) and the interactive communication sequence generated in (b). | 06-18-2009 |
| 20090158426 | TRACEBACK METHOD AND SIGNAL RECEIVING APPARATUS - The present invention provides a traceback method including: receiving data including router information according to a path of an attacker; filtering the data to hash the data, and storing the resultant hashed information; determining whether the data is normally received on the basis of the hashed information; and predicting a path loss on the basis of the determination result. Therefore, it is possible to perform an accurate IP traceback using a probabilistic packing marking method and a hash-based traceback method. | 06-18-2009 |
| 20090190560 | UPLINK SYNCHRONIZATION REQUEST METHOD IN MOBILE COMMUNICATION SYSTEM, CDMA ALLOCATION IE THEREOF, AND APPARATUS USING THE SAME - The present invention relates to an uplink synchronization request method in a mobile communication system, a CDMA allocation information element structure thereof, and an apparatus using the same. For this purpose the uplink synchronization request method includes: when up-link traffic is generated, determining whether an uplink synchronization error occurs; when the uplink synchronization error occurs, calculating a timing adjustment value; and transmitting a bandwidth request code including the calculated timing adjustment value to a base station and performing a band-width request. According to the present invention, the PSS compares a reference adjustment value and an arrival time of a downlink preamble to calculate uplink synchronization timing and synchronize an uplink of the PSS that requests bandwidth allocation through a bandwidth request ranging process to thereby maximize resource use efficiency in the uplink synchronization. | 07-30-2009 |
| 20090239546 | METHOD AND APPARATUS FOR ALLOCATING RADIO RESOURCE IN COMMUNICATION SYSTEM - To transmit resource allocation information on a plurality of radio resources to a terminal, a resource allocation device expresses a radio resource that is differently allocated from before the resource allocation information is transmitted among the plurality of radio resources in a radio resource pattern sequence, generates resource allocation information on the plurality of radio resources based on the radio resource pattern sequence, and transmits the radio resource pattern sequence and the resource allocation information, or a compressed pattern sequence corresponding to the radio resource pattern sequence and the resource allocation information, to the terminal through a frame. | 09-24-2009 |
| 20100103900 | BEAMFORMING METHOD AND DEVICE - The present invention relates to a beamforming device in an orthogonal frequency division multiplexing access system, and a method thereof. In the method, a switched beamforming algorithm is applied to perform downlink beamforming, and an adaptive beamforming algorithm is applied to perform uplink receiving beamforming. In addition, a half wavelength array antenna is used to simultaneously allocate the same resource to two terminals separately positioned in two different spaces, so as to support spatial division multiple access (SDMA). In this case, since a base station uses channel status information at transmitter (CSIT) for transmitting beamforming and receiving beamforming, the SDMA may be supported without obtaining additional channel status information at receiver (CSIR) when realizing the uplink receiving beamforming. | 04-29-2010 |
| 20100110015 | METHOD FOR ALLOCATING CHARACTERS AND INPUT DEVICE USING THE SAME - When characters are allocated to a keyboard, a plurality of consonants are divided into a plurality of groups according to pronunciation position in the oral cavity, and the groups are allocated to corresponding columns on the keyboard of (3) rows and (10) columns. A plurality of vowels are allocated to the corresponding columns according to the pronunciation position in the oral cavity. In this instance, the consonants and the vowels of which the pronunciation position are near the lips are allocated to the middle area of the area of (3) rows and (10) columns, and the consonants and the vowels of which the pronunciation position are near the vocal chords are allocated to the outer part of the area of (3) rows and (10) columns. The consonants and the vowels are allocated to the corresponding rows of the area of (3) rows and (10) columns according to usage frequency. | 05-06-2010 |
| 20100110879 | METHOD AND APPARATUS FOR PROVIDING MULTIMEDIA BROADCAST MULTICAST SERVICE - Provided are a method and an apparatus for providing a multimedia broadcast multicast service. The method for providing a multimedia broadcast multicast service (MBMS) in a base station includes determining the number of terminals receiving the MBMS and determining a unit-cell or multi-cell transmission scheme by comparing predetermined unit-cell and multi-cell thresholds with the determined number of terminals. | 05-06-2010 |
| 20100111022 | FEMTOCELL BASE STATION APPARATUS AND SELF-CONFIGURING METHOD THEREOF - A self-configuring method of a femtocell base station extracts preambles from signals received from adjacent macrocells and femtocells. Transmission power of the femtocell base station is set using the extracted macrocell preambles. In addition, the preambles of the femtocell base station are selected using the correlation values between the macrocell preambles and the pre-stored femtocell preambles. Moreover, the resources for data transmission of the femtocell base station are allocated considering the adjacent macrocells and the femtocells. | 05-06-2010 |
| 20100113031 | TERMINAL, METHOD FOR HANDOVER THEREOF, AND SUPPORTING METHOD FOR HANDOVER OF BASE STATION - A method for handover according to the present invention includes: requesting information on femto cells that are accessible by the terminal from a macro base station that manages the macro cells; receiving the femto cell information from the macro base station; and scanning neighboring femto cells based on the femto cell information. | 05-06-2010 |
| 20100115018 | INTERCEPTION METHOD INTERWORKING WITH COMMUNICATION NETWORK AND INTERNET NETWORK - Disclosed is an interception method that interworks with a communication network and an Internet network. A law enforcement agency system verifies whether an interception target presently uses an Internet service by using a terminal other than a terminal registered as the interception target on the basis of Internet service access information of the interception target. When the interception target uses the Internet service by using the other terminal, the law enforcement agency system updates interception target information on the basis of IP address information of the corresponding terminal, which is included in the Internet service access information and transmits the updated interception target information to a communication service provider. | 05-06-2010 |
| 20100135160 | SYSTEM AND METHOD FOR ELECTRONIC MONITORING - A system for electronic monitoring includes a control server and a plurality of monitoring servers. The control server transmits electronic monitoring instructions including identification information on terminals to a plurality of monitoring servers, respectively, based on information of objects to be monitored stored in a database, receives an object confirmation request message including information on suspect object packets from a first monitoring server among the plurality of monitoring servers, and determines whether the monitoring object terminals correspond to suspect object terminals that transmit or receive the suspect object packets according to the object confirmation request message based on the information on the monitoring objects. When the suspect object terminals are the monitoring object terminals, the control server updates the database based on the information on the suspect object packets. | 06-03-2010 |
| 20100135438 | SIGNAL DETECTION METHOD AND RECEIVER - Disclosed is a method of detecting signals at a receiver of a communication system with a multiple input multiple output antenna. With the signal detection method, a square of the distance between a received signal vector and a channel status-considered transmission symbol vector is calculated first, and the square of the distance is then classified into first and second components. The first component is minimized to calculate a plurality of first soft symbol estimates. A solution set of the first component is calculated on the basis of the plurality of first soft symbol estimates. The second component is minimized to calculate a plurality of second soft symbol estimates. A solution set of the second component is calculated on the basis of the plurality of second soft symbol estimates. A final solution set is calculated by doing the sum of the first component solution set and the second component solution. | 06-03-2010 |
| 20100138599 | SYSTEM AND METHOD FOR MATCHING PATTERNS - A pattern matching system detects strings contained in a target pattern to be detected within a data stream input by 1-byte data, and detects a regular expression representing the target pattern among regular expressions constructed by the detected strings. | 06-03-2010 |
| 20100177740 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK INFORMATION - Disclosed is an apparatus for transmitting feedback information to a base station. The feedback information transmitting apparatus receives channel allocation information, generates a plurality of payloads regarding feedback information, and multiplexes the plurality of payloads in terms of a plurality of classes so as to generate a plurality of multiplexed payloads. Subsequently, the plurality of multiplexed payloads are code multiplexed so as to generate a code division multiplexing symbol, and a channel code is applied to the code division multiplexing symbol. Then, the code division multiplexing signal applied with the channel code is transmitted to a base station through a wireless resource. Accordingly, a feedback channel that is adaptive to a channel condition is configured, such that a wireless resource for a feedback channel can be efficiently used. | 07-15-2010 |
| 20100232398 | RESOURCE ALLOCATION METHOD, MAP CONFIGURATION METHOD, AND RESOURCE ALLOCATION INFORMATION TRANSMISSION METHOD IN MOBILE COMMUNICATION SYSTEM - When characters are allocated to a keyboard, a plurality of consonants are divided into a plurality of groups according to pronunciation position in the oral cavity, and the groups are allocated to corresponding columns on the keyboard of 3 rows and 10 columns. A plurality of vowels are allocated to the corresponding columns according to the pronunciation position in the oral cavity. In this instance, the consonants and the vowels of which the pronunciation position are near the lips are allocated to the middle area of the area of 3 rows and 10 columns, and the consonants and the vowels of which the pronunciation position are near the vocal chords are allocated to the outer part of the area of 3 rows and 10 columns. The consonants and the vowels are allocated to the corresponding rows of the area of 3 rows and 10 columns according to usage frequency. | 09-16-2010 |
| 20100246441 | METHOD AND APPARATUS FOR MONITORING PACKET SERVICE - The present invention provides a packet service electronic monitoring method in a wireless portable Internet system and an apparatus using the same. In the packet service electronic monitoring method, a packet service electronic monitoring start request is transmitted to a packet subscriber station (PSS) from a law enforcement agency and the packet service electronic monitoring is started. When the PSS attempts a packet service, electronic monitoring call information of the PSS is transmitted to the law enforcement agency, and an electronic monitoring subscriber packet of the PSS is transmitted to the law enforcement agency when the PSS is provided with the packet service. | 09-30-2010 |
| 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 |
| 20100316145 | METHOD FOR CHANNEL ESTIMATION AND FEEDBACK IN WIRELESS COMMUNICATION SYSTEM - Disclosed is a method for channel estimation and feedback in a wireless communication system that estimates a channel for each transmission antenna using an orthogonal frequency division multiplexing (OFDM) impulse signal. A method for channel estimation in a wireless communication system includes causing a base station to generate a training signal with a specific waveform for each transmission antenna and to transmit the generated training signal to terminals; causing the terminals to acquire a downlink channel impulse response for each transmission antenna of the base station using the training signal transmitted from the base station; causing the terminals to acquire a downlink channel characteristic for each transmission antenna of the base station using the acquired channel impulse response; causing the terminal to feed back the acquired downlink channel characteristic information to the base station; and causing the base station to perform fast Fourier transform (FFT) on the downlink channel information transmitted from the terminals to indirectly acquire full channel status information (CSI). | 12-16-2010 |
| 20100322160 | STRUCTURE AND CONSTRUCTION METHOD OF UPLINK CONTROL CHANNEL IN MOBILE WIDEBAND WIRELESS ACCESS SYSTEM - The present invention relates to an uplink control channel configuration in a mobile wideband wireless access system, and an allocation method thereof. An uplink control channel includes a long cyclic prefix used to improve interference and distortion caused by multipath transmission characteristics of an initial ranging or handover ranging signal and a periodic ranging or band request ranging signal. In addition, a short orthogonal frequency division multiple (OFDM) symbol is used to transmit uplink control information when one terminal exists or the number of terminals is small. | 12-23-2010 |
| 20110028175 | Device for managing of base station and method for managing thereof - A management device of a stopping or moving base station includes: an information acquisition unit that acquires first information about wireless environment from a neighboring base station and that acquires second information about the wireless environment by connecting to a backbone network; a position estimating unit that estimates a position of the neighboring base station based on the first information; and an operation condition selection unit that selects radio resources based on at least one of the first information and the second information. | 02-03-2011 |
| 20110029306 | AUDIO SIGNAL DISCRIMINATING DEVICE AND METHOD - An audio discriminating device includes a plurality of audio discriminators for discriminating an input audio signal as a speech signal or a non-speech signal by using at least one feature parameter, and determines whether to drive the audio discriminator connected next to the corresponding audio discriminator according to the audio discriminator's audio signal discriminating result. | 02-03-2011 |
| 20110058533 | METHOD OF ALLOCATING RESOURCE AND METHOD OF FORMING RANGING CHANNEL - An access point allocates a resource for ranging to an access terminal included therein, and receives a ranging channel that includes an identifier of the access terminal and a plurality of pilots. The AP checks the access terminal by using the received identifier, and measures a round trip delay of the access terminal based on the received pilots. | 03-10-2011 |
| 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 |
| 20110145396 | METHOD AND SYSTEM FOR LAWFUL INTERCEPTION OF INTERNET SERVICE - In a lawful interception system including an interception unit, an application service providing unit, and an Internet access service providing unit, the application service providing unit may receive, from the interception unit, an interception request including interception target information of an interception target. Next, the application service providing unit may transfer a user code corresponding to the received interception target information to the interception unit, and may insert user related information into a packet to be provided to the interception target corresponding to the user code, enabling the packet to be lawfully intercepted. The interception unit may request the Internet access service providing unit for an interception of the packet with respect to the interception target by including the user code. | 06-16-2011 |
| 20110149859 | SYSTEM AND METHOD FOR COUPLING COMMUNICATION TERMINALS - Disclosed herein is a system and method for coupling communication terminals. In a communication method performed by a terminal coupler according to the present invention, sequence numbers are sequentially assigned to data packets received from a terminal end device. The data packets with the sequence numbers assigned thereto are individually transferred to a plurality of communication terminals belonging to a same group in conformity with preset scheduling policies. Data packets, received from the plurality of communication terminals belonging to the same group, are reordered by sequence numbers, and the reordered data packets are transferred to the terminal end device. | 06-23-2011 |
| 20110153108 | METHOD AND DEVICE FOR REMOTE POWER MANAGEMENT - Provided is a method for remote power management capable of remotely controlling power consumption. The method for remote power management includes: allowing a power management device to generate power information on the basis of power consumption information collected from at least one electronic apparatus and transmit the generated power information to a user terminal through a wireless communication network; and to control an operation of the at least one electronic apparatus in accordance with a control command transmitted in response to the power information from the user terminal through the wireless communication network. | 06-23-2011 |
| 20110153430 | METHOD FOR BROADCASTING AND METHOD FOR RECEIVING LOCATION INFORMATION OF BASE STATION - A plurality of location-based service advertisement messages including location information of base stations belonging to each network are broadcasted with different timing in multiple wireless networks. Therefore, a terminal receives only at least on location-based service advertisement message corresponding to an accessible network among the plurality of location-based service advertisement messages. | 06-23-2011 |
