Patent application number | Description | Published |
20140301385 | LTE CELL DETECTING APPARATUS IN MULTI-CELL ENVIRONMENT - There is disclosed a Long Term Evolution (LTE) cell detecting apparatus in a multi-cell environment that may efficiently detect an LTE cell even in a multi-cell environment where interference occurs between adjacent cells. | 10-09-2014 |
20140334285 | BASE STATION APPARATUS FOR DECREASING AMOUNT OF TRANSMISSION DATA WITH CLOUD RADIO ACCESS NETWORK - There is disclosed a base station apparatus having a cloud radio access network (CRAN) structure. The base station apparatus includes a digital unit (DU) that includes a baseband processing unit for processing signals of a baseband, a Fast Fourier Transform (FFT) operation unit that converts baseband signals of a time domain into signals of a frequency domain, an Inverse FFT (IFFT) operation unit that converts signals of a frequency domain into signals of a time domain, and a radio unit (RU) that processes radio signals with respect to a terminal, and transmits and receives the processed signals, wherein the FFT operation unit and the IFFT operation unit are provided in the RU to reduce an amount of transmission and reception data between the DU and the RU. | 11-13-2014 |
20150065094 | METHOD OF MEASURING CALL DELAY TIME - A method of measuring a call delay time by synchronizing times of a replaying part and a recording part in a call delay time measuring device using an interrupting hardware method. The method includes reading an original WAV file when a replaying CPU receives a command, waiting for writing to a DAC buffer of a replaying CODEC, transferring a signal of recording-ready to a recording CPU, generating a recording WAV file by the recording CPU, waiting for reading from an ADC buffer of a recording CODEC, transferring a signal of complete recording-ready to the replaying CPU, recording the original WAV file, replaying the original WAV file and simultaneously transferring a signal of recording-start to the recording CPU, and reading audio data from the ADC buffer of the recording part by the recording CPU and recording the audio data to the recording WAV file. | 03-05-2015 |
20150092664 | Long Term Evolution Femtocell Based Content Service System, and Driving Method Thereof - Provided is a long term evolution (LTE) femtocell based content service system and a driving method thereof, which include user equipment (UE) connected to an evolved packet core (EPC) network that is a core network through routes, that is, a radio network subsystem (RNS) and a home eNode subsystem (HeNS) having a femtocell and a content service server connected to the EPC network and configured to receive system information including PCI, U_DL BW, Cell ID, TAC, HeNB Name and SNR, and query data from the user equipment (UE), retrieve corresponding content with reference to the received system information and query data, and provide the corresponding content to the user equipment (UE). | 04-02-2015 |
20150208323 | FLEXIBLE CONNECTION CONTROL FEMTOCELL ACCESS POINT (FAP) DEVICE OF SMALL CELL AND METHOD OF DRIVING THE SAME - A flexible connection control femtocell access point device of a small cell and a method of driving the same are provided. A maximum system load is used and network efficiency is maximized by calculating a system load occurring when a mobile station is newly connected according to the type of services that user equipments, that is, mobile stations, in a small cell, such as a femtocell, desire to use, comparing the calculated system load and the maximum system load, and determining whether to limit connection of the mobile station. | 07-23-2015 |
20150295699 | METHOD OF CONTROLLING TDD TX/RX SWITCHING TIMING IN CLOUD RADIO ACCESS NETWORK - Provided is a method for controlling a time division duplexing (TDD) Tx/Rx switching timing in a cloud radio access network (CRAN) that can finely control a switching timing between transmission and reception of TDD signals with an additional component added to a digital unit (DU) and a radio unit (RU) in the CRAN. | 10-15-2015 |
20150333818 | ADAPTIVE INTERFERENCE CANCELLATION APPARATUS FOR CANCELLING SIDE LOBE BETWEEN NEIGHBORING CELLS - An adaptive interference cancellation apparatus for cancelling a side lobe between neighboring cells installed in a repeater and capable of improving quality of a communication signal and preventing frequent handover by maintaining a serving base station signal among repeater signals and cancelling an interference signal from a neighboring cell is provided. The adaptive interference cancellation apparatus for a side lobe between neighboring cells, which is installed in a mobile communication repeater system comprising an omni-directional antenna, includes: three directional antennas installed around the omni-directional antenna; an output signal selector configured to select and output two of three directional antenna incident signals; and an adaptive noise canceller configured to adaptively filter the two directional antenna incident signals output from the output signal selector, estimate a noise reference signal, and extract a serving base station signal by subtracting the estimated noise reference signal from an omni-directional antenna incident signal. | 11-19-2015 |
20160044562 | METHOD OF SWITCHING CONNECTION TO FEMTOCELL AND WIFI AP IN SDN - A method of switching a connection to a femtocell and a WiFi access point (AP) in software defined networking (SDN) capable of minimizing inconvenience of use by automatically switching a connection to a mobile communication network including the femtocell and a WiFi network connected to the SDN without disconnection of a data service in a state that a user does not recognize is provided. | 02-11-2016 |
20160044590 | METHOD OF OFFLOADING WIRELESS DATA IN CORE NETWORK USING FEMTOCELL - A method of offloading wireless data in a core network using a femtocell which can reduce a traffic load of a mobile communication network and maximize convenience of a user by determining to offload the wireless data passing through the core network onto a local network according to whether the data is real-time data is provided. | 02-11-2016 |