Kt Corporation

Samsung Electronics Co., Ltd.

Sk Biopharmaceuticals Co., Ltd.

Korea Advanced Institute of Science and Technology

Sk Corporation

Ki-Ho Lee

Yung-Ha Ji

Yong-Gyoo Lee

Yu-Jin Shin

Dong-Ho Cho

Joon Heo

Cheol-Young Maeng

Han-Ju Yi

Jin-Yong Chung

Eun-Hee Chae

Tae-Soo Kwon

Soon-Young Yoon

Jae-Hee Cho

Sang-Boh Yun

Won Sik Kim

Jong-Ho Park

Young-Soon Kang

Byungsuk Kim

Won Hee Kim

Sung-hyun Cho

Kyung-Joo Suh

Ki-Young Han

Young-Hoon Kwon

Kyung-Hun Jang

Sung-Hyun Cho

Won-Hyoung Park

Ju-Yeop Kim

Ho-Won Lee

Sik Choi

Chi-Sung Bae

Ae-Ri Lim

Chun-Eung Park

Soo-Yong Jeon

Yong-Je Shin

Hae-Jeong Yoon

Eun-Ju Ryu

Jong-Wuk Son

Ki-Hyun Pyun

Chi-Hyun Park

In-Sun Lee

Chang-Woo Seo

Pil-Yong Hwang

Jin-Youn Cho

Seongkwan Kim

Kyung-Hyun Min

Yong-Moon Choi

Kyung-Hyan Min

YongGyoo Lee

Gyung-Ho Hwang

Kyung-Ho Hwang

The present disclosure provides a compound represented by Formula (I) and a pharmaceutically acceptable salt which are effective as a dopamine reuptake inhibitor and a method of using the compound: 

Aminocarbonylcarbamate compounds

A resource allocation method is provided in which a resource allocation apparatus using a time-division duplex communication scheme allocates resources for a subframe. The resource allocation method includes: allocating a first time region of the time domain of the subframe as a downlink control information region; and allocating the rest of the time domain of the subframe, apart from the first time region, as at least one region variably selected from among a downlink data region, an uplink data region, an uplink control information region, and a guard period (GP) region.

Resource allocation method and communication device

Cloud communication center system and method for processing data in a cloud communication system. An apparatus for supporting a cloud communication system may include at least one remote unit and a centralized unit. The at least one remote unit may be configured to process one of radio signals received from a user equipment or radio signals to be transmitted to a user equipment according to at least one sub-layer of an open system interconnection reference model. The centralized unit may be configured to receive the processed signal from the remote unit and to process the received signal based on the remaining sub-layers of the open system interconnection reference model.

Cloud communication center system and method for processing data in a cloud communication system

Disclosed is a system for operating a base station with low-level power and a method thereof. The system includes: a master base station for servicing a macro cell; and a plurality of secondary base stations for servicing a small cell, and activating operation power according to a request by the master base station, wherein the master base station selectively activates operation power of at least one secondary base station for transmitting/receiving data to/from the terminal from among the plurality of secondary base stations in a minimum power state.

System and method for operating base station with low-level power

Disclosed herein are a base station apparatus, a resource management method, and a data processing method. The base station apparatus includes: a remote active antenna unit configured to perform transmission and reception of a wireless signal to and from a terminal; and a central unit connected to the remote active antenna unit, configured to process a signal received from the terminal or a signal to be transferred to the terminal, and configured to transfer resource allocation information to the remote active antenna unit, in which the remote active antenna unit schedules a data and a resource for the terminal based on resource allocation information received from the central unit.

Base station apparatus and resource management method and data processing method in wireless communication system

A signal processing system and a signal processing method are provided. The signal processing system includes: a digital unit connected to a core system and configured to process a radio digital signal; and a plurality of radio units physically separated from the digital unit, configured to convert and amplify a digital signal received from the digital unit and transmit the amplified signal to a terminal based on a multi-input multi-output (MIMO) transmission using two antennas, and receive a signal transmitted from a terminal based on MIMO using the two antennas and deliver the received signal to the digital unit, wherein two radio units, among the plurality of radio units, transmit data signals by using a cell-specific reference signal to a terminal located within a cell, rather than being located in a cell boundary area, under the control of the digital unit, and with respect to a terminal located in the cell boundary area and adjacent to a cell, a radio unit of the adjacent cell transmits a data signal by using a user-specific reference signal to the terminal.

Signal processing system and signal processing method

A signal processing system, a digital signal processing device (or a digital unit), and a method of controlling transmission power in the system are provided. The digital unit allocates relatively high transmission power to a terminal located in a boundary area of adjacent cells served by two radio units, which is higher than transmission power for transmitting data to a terminal located at about a central area of each cell, rather than the boundary cell of adjacent cells.

Signal processing system, digital signal processing device, and method of controlling transmission power in the system

A mobile communication system for providing carrier aggregation between digital units, and a method for processing a signal in the system are provided. The mobile communication system includes: a plurality of digital units connected to a core system and configured to process a radio digital signal; a blade server connected to at least two or more digital units and configured to perform resource allocation on signals processed by the connected digital units; and a plurality of radio units physically separated from the digital units, configured to convert and amplify digital signals received from the digital units, and transmit the same to a terminal, and configured to receive a signal transmitted from the terminal and transmit the received signal to the digital units. In the system, a mobile communication service is provided to the terminal by using carrier aggregation between radio units respectively connected to at least two or more digital units and using different frequencies.

Mobile communication system for providing carrier aggregation between digital units, and method for processing signal in the same

Provided are a mobile communication system, a digital unit, and a method of establishing a joint transmission area in the system. When the digital unit determines that a terminal is located in a joint transmission area based on signal strength values received from two of radio units and transmission powers of the two radio units, the digital unit adjusts the joint transmission area depending on the load on the network including the two radio units belong in order to allow the two radio units to perform a joint transmission function to send at least one of the same signal and a spatiotemporally coded signal of the same data to the terminal.

Mobile communication system, digital unit, and method of establishing joint transmission area in the system

The present disclosure relates to resource allocation method and apparatus. The resource allocation method includes monitoring resource information of a plurality of base stations including a first base station and a second base station, receiving a resource allocation request from a first terminal that is located in a boundary region and connected to the first base station, and checking whether a second terminal using a voice service is located in the boundary region. When the second terminal is located in the boundary region, resources are allocated to the first terminal based on resources allocated to the second terminal. The boundary region is an overlapped region of cells of the first base station and the second base station.

Method and device for allocating resources

A method and apparatus for scheduling in a wireless communication system configured for coordinated scheduling are disclosed. The scheduling apparatus sets a gain to be obtained when a terminal performs coordinated scheduling in a neighboring cell. The scheduling apparatus determines whether the terminal in the neighboring cell has moved between a first region where coordinated scheduling is not performed and a second region where coordinated scheduling is performed. Next, if it is determined that the terminal in the neighboring cell has moved between the first region where coordinated scheduling is not performed and the second region where coordinated scheduling is performed, the scheduling apparatus controls the radio unit in the neighboring cell to set an Modulation and Coding Scheme (MCS) level based on the gain and perform scheduling based on the MCS level.

Method and apparatus for scheduling in wireless communication system for coordinated scheduling

Growing community of inventors

Gyeonggi-do, South Korea

Ki-Ho Lee