Samsung Electronics Co., Ltd.

Pantech Co., Ltd.

Hyundai Motor Company

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Information and Communications University Research and Cooperation Group

Leland Stanford Junior University

Yonsei University

Young-Jun Park

Jae-Hyun Park

Ki-Young Han

Byung-Se So

Hyon-Goo Kang

Do-Hyung Kim

Zhenan Bao

Mi-Sun Do

Jae-jun Lee

Hyeon-Woo Lee

Kyung-Joo Suh

Jae-Kwon Oh

Jong-Min Kim

Chil-Nam Yoon

Kyung-Chul Kim

Sang-Hoon Oh

Young-Man Ahn

Eun-Hui Bae

Byoung-Ha Yi

Chung-Gu Kang

Jung-Joon Lee

Woo-Jae Kim

Ho-Seong Lee

Sung-joo Park

Dong-Hee Kwon

Byoung-Gi Jang

Jung-Min So

Hye-Joong Kang

Jung-Hee Han

Byoung-Ha Oh

Chang-Woo Koo

Young-Joo Suh

Min-Hwan Kim

Kwang-Jo Kim

Kyu-Suk Han

Yong-Ho Ko

Pradipta Patra

Hang-woo Lee

Kug Shin

Su-Yeul Lee

Il-Sung Yu

Hae-Young Bae

Ji-Uk Yoo

Myeong-Yun Chae

Sang-Hyun Paek

Hye-Kyung Min

Hyun-Gyu Park

Choon-Ho Ryu

Jeoung-Wook Lee

Min-Young Ahn

Chul-Ho Jun

Ji-Sung Lee

Ye-Lim Yeon

Joon-hak Oh

A Base Station (BS) operation method for reducing load terminals based on load estimation of a neighbor cell in a wireless communication system includes receiving information for estimating a load of a neighbor BS, determining whether to determine the power control and handover terminal set using the number of terminals serviced by the neighbor BS, the number of overload terminals among the terminals serviced by the neighbor BS, and the backoff counter value, and, when it is determined to determine a power control and handover terminal set, deciding the power control and handover terminal set to minimize load terminals, based on the first power variation and the second power variation.

Method and apparatus for power control and load balancing based on load estimation of neighbor cell in wireless communication system

A communication apparatus and method for operating a communication apparatus are provided. The communication apparatus is configured to determine whether a sub-frequency band causing interference is present among sub-frequency bands included in a reception frequency band group, and to send to another communication apparatus an interference avoidance request signal which requests the other communication apparatus to transmit signals by use of remaining sub-frequency bands except the sub-frequency band causing interference, leading to simpler and more efficient interference avoidance.

Communication apparatus and method

A method of scheduling a subband is provided. The method includes determining whether the eNodeB is in an overload state according to a used amount of a first radio resource of the eNodeB, receiving information on a used amount of a second radio source of at least one neighbor eNodeB from the at least one neighbor eNodeB, determining whether the at least one neighbor eNodeB is in the overload state, setting a number of total subbands to be used for a subband scheduling to a number lower than a number of total subbands used by the at least one neighbor eNodeB, setting a subband scheduling start order such that the subband scheduling is started from a subband having a farthest distance in frequency from at least one subband used by the at least one neighbor eNodeB from among the set number of subbands, and performing the subband scheduling.

Method and apparatus for subband scheduling in wireless communication system

A wireless communication system includes an apparatus capable of detecting whether a cell coverage is downscaled. The wireless communication system receives information used for communication between an evolved NodeB (eNodeB) and a User Equipment (UE) from the eNodeB. The UE performs at least one of pilot signal power checking for checking if a pilot signal power falls within a first reference range, DownLink (DL) Signal-to-Interference plus Noise Ratio (SINR) checking for checking if an SINR of a DL traffic channel falls within a second reference range, and UpLink (UL) SINR checking for checking if an SINR of an UL traffic channel falls within a third reference range using the received information. The UE also detects whether a cell coverage of a cell to which the eNodeB and the UE belongs is downscaled based on a checking result.

Method and apparatus for detecting whether cell coverage is downscaled in wireless communication system

A method and apparatus optimize handover optimization in a broadband wireless communication system. Operations of a base station includes determining whether at least one of a plurality of time intervals included in a total time taken by handover, exceeds a threshold time. Whether to advance or delay a handover point is determined based on which at least one of the time interval exceeds the threshold time. And at least one handover parameter is changed to advance or delay the handover point.

Apparatus and method for handover optimization in broadband wireless communication system

An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.

Authentication method in communication system

A memory module having a start-type topology and a method of fabricating the same are provided. The memory module includes a substrate. Memory devices are mounted on the substrate in at least two rows and at least two columns. A star-type topology is disposed to be electrically connected to the memory devices. One or more pairs of adjacent ones of the memory devices have a point-symmetric structure.

Memory module having star-type topology and method of fabricating the same

A memory module includes a first memory group including a plurality of memory devices, a second memory group including a less number of memory devices with respect to the memory devices in the first memory group, a register configured to provide a command/address signal to the first memory group and a delayed command/address signal to the second memory group, a first signal line configured to transfer the command/address signal to the first memory group, and a second signal line configured to transfer the delayed command/address signal to the second memory group.

Memory module and register with minimized routing path

Embodiments are described in which a stacked arrangement of integrated circuit packages comprises a dummy substrate comprising an embedded discrete or distributed capacitor connected to first and/or second power voltages, or an embedded termination register connected to one or more clock, control, address, and/or data signals(s).

Memory module with stacked semiconductor devices

Disclosed is a system for providing handover of a mobile node in a wireless network supporting Mobile IP (Internet Protocol). The mobile node sends, when handover is needed, a request for neighbor access router information to a first access router currently communicating with the mobile node, and selects, if the neighbor access router information is received, a second access router serving as a target access router using the received neighbor access router information. The first access router exchanges access router information with a neighbor access router, provides neighbor access router information to the mobile node upon receiving the neighbor access router information request from the mobile node, and redirects data to be delivered to the mobile node to the second access router to which the mobile node will be handed over. The second access router forwards data to be delivered to the mobile node, received from the first access router, to the corresponding mobile node.

System and method for providing handover of a mobile IP terminal in a wireless network

The present invention discloses a memory module and a method of arranging a signal line of the same. The method of arranging a signal line of a memory module comprises: classifying a plurality of memories into a first group including an odd number of memories and a second group including an even number of memories; arranging first branch points corresponding to the plurality of memories and respectively connecting the first branch points to the plurality of memories through first signal lines; arranging a second branch point located at a middle of the second group for respectively connecting between the first branch points adjacent to each other of the second group and between the first branch points adjacent to the second branch points and the second branch point through second signal lines; arranging a third branch point located at a middle of the second group, receiving an external signal, and connecting the third branch point and the second branch point of the second group through a third signal line; and connecting between the second branch point of the second group and the first branch point of the first group through a fourth signal line.

Memory module and a method of arranging a signal line of the same

The present invention provides a novel sulfonamide derivative of general formula (I) useful as an inhibitor of matrix metalloproteinase (MMP), its isomers, pharmaceutically acceptable salts thereof and a process for preparing the same. Since the sulfonamide derivatives of the present invention selectively inhibit MMP activity in vitro, the MMP inhibitors comprising the sulfonamide derivatives as an effective ingredient can be practically applied for the prevention and treatment of all sorts of diseases caused by overexpression and overactivation of MMP.

Sulfonamide derivative as a matrix metalloproteinase inhibitor

Disclosed is a process for preparing optically active (&minus;)pyridobenzoxazine carboxylic acid derivative and pharmaceutically acceptable salt thereof by employing a starting material of (&plus;)ethyl 2-(4-chloro-5-fluoro-2-halo-3-nitobenzoyl)-3-&lsqb;(1-hydroxypropy-2(s)-yl)amino&rsqb;acrylate. According to the present invention, optically active (&minus;)pyridobenzoxazine carboxylic acid derivative can be manufactured from low-priced 4-chloro-5-fluorobenzoic acid derivative in a simple and economical manner.

Process for preparing (-)pyridobenzoxazine carboxylic acid derivatives

An apparatus and method for controlling a damper clutch for an automatic transmission of a vehicle are disclosed. The apparatus includes a shift lever for shifting a transmission gear of the vehicle, a handle for moving the shift lever, a damper switch disposed on the handle for manually selecting an operation of the damper clutch, and a control unit for controlling the damper clutch according to the damper switch and predetermined conditions.

Apparatus and method for controlling a damper clutch for a vehicle

Growing community of inventors

Seoul, South Korea

Young-Jun Park