Korea Advanced Institute of Science and Technology

Samsung Electronics Co., Ltd.

Airvana, Inc.

Lg Electronics Inc.

Lucent Technologies Inc.

Airvana Network Solutions, Inc.

Solid Technologies Inc.

Sae-Young Chung

Dae-Young Kim

M Vedat Eyuboglu

Myeon-Kyun Cho

Gopal Harikumar

Jiwon Kang

Tak-Ki Yu

Hyunsoo Ko

Jaehoon Chung

Yung-Soo Kim

Sang-Woon Jeon

Yong-Hoon Lee

Hui-Ling Lou

Jae-Yeun Yun

Wonseok Jeon

KiTae Kim

Hong Rak Son

Donghwan Lee

Sang-min Lee

Junjin Kong

Young-Ho Jung

Eung Sun Kim

Changkyu Seol

Dong-Ho Kim

Seung-Hoon Nam

Tae Soo Kwon

Jong Bu Lim

Jong-Hyeuk Lee

Yong Hoon Lee

Young-Doo Kim

Eun-Yong Kim

Heejung Yu

Seung Hee Lee

Jihoon Choi

In-Soo Hwang

Sepehr Mehrabanzad

Satish Ananthaiyer

Hyejeong So

Yong Hoon Kang

Jong-Bu Lim

Sang Won Choi

Michael Pollman

Won-Yong Shin

Firas Abi-Nassif

Muryong Kim

Sungik Choi

Young-Seok Oh

Jinhak Kim

Jin Hwa Ku

Lanying Zhao

A method of decoding may include performing fewer than number of sensing operations of multilevel cells within a nonvolatile memory device, decoding pages corresponding to each of the sensing operations while correcting a channel error using an RIO code, and extracting user data from the decoded pages.

Data coding to reduce read-sensing operations in storage device

The present invention relates to a method for performing beamforming by using circular array antenna comprising a plurality of antennas, and a device therefor, and to a method and a device therefor, the method comprising the steps of: determining the number of operating antennas for a specific beam pattern; selecting at least one antenna among the plurality of antennas by using the determined number of operating antennas; and transmitting a signal through the selected at least one antenna, wherein the step of determining the number of operating antennas determines the number of operating antennas by using the inverse number of the square of the vertical beam width of the specific beam pattern.

Beamforming method and device therefor

A method and apparatus for beamforming using a polarized antenna in a wireless communication system are disclosed. The apparatus includes a processor configured to process a signal, and a multi-polarized antenna including a plurality of antenna elements, configured to transmit the signal. The plurality of antenna elements include an electric-field dipole antenna and a magnetic-field dipole antenna, and a current is applied to the electric-field dipole antenna and the magnetic-field dipole antenna in the same direction or in opposite directions.

Method and apparatus for beamforming using polarized antenna in a wireless communication system

A method and apparatus for transmitting a signal using a polarimetric antenna to a reception apparatus in a wireless communication system are disclosed. The method includes generating a first matrix using a radiation pattern of the polarimetric antenna, calculating a second matrix that maximizes channel capacity, determining an antenna virtualization matrix by Singular Value Decomposition (SVD) based on the first and second matrices, and transmitting a signal to the reception apparatus using the antenna virtualization matrix.

Method and apparatus for performing antenna virtualization using polarimetric antenna in a wireless communication system

A method of cooperative multi-antenna communication between a base station and node existing in a wireless network is provided. A cooperative multi-antenna communication method includes receiving data from at least one node of a node group that receives data from a base station, performing multiple input multiple output (MIMO) signal processing with respect to the received data, the MIMO signal processing indicating signal processing performed in a receiving end of a MIMO system, and transmitting the signal processed data to at least one target node.

Method for cooperative multi-antenna communication

An apparatus and method for downlink scheduling in a multi antenna wireless communication system are provided. The apparatus includes a receiver for receiving channel information of at least one mobile station that is selected as an active user by a base station, a judgment unit for judging whether it feeds back its own channel information using the channel information of the selected at least one mobile station, and a transmitter for transmitting the its own channel information to the base station according to judgment of the judgment unit.

Apparatus and method for downlink scheduling in a multi antenna wireless communication system

Disclosed is a data transmission/reception method and system for minimizing intercarrier interference (ICI) in a communication system using a multicarrier. The data transmission method by a transmitter includes grouping transmission signals in units of a predetermined number of transmission signals when the transmitter has received the transmission signals, multiplying each group of the transmission signals by a transmission coding matrix, and transmitting the transmission signals multiplied by the transmission coding matrix to a receiver.

Method and system for transmitting/receiving data in communication system

A method of setting a packet transmission path in a wireless communication network and a network apparatus using the same are provided. A method of setting a packet transmission path includes setting N&#x2212;1 routing regions including at least one node between a source node and a destination node based on a predetermined N number of hops, N denoting an integer greater than or equal to two, and determining a node in each of the routing regions as a relay node based on a channel gain.

Method for setting packet transmission path in ad hoc network, and network apparatus using the same

A method and apparatus for transmitting signals in a multi-hop wireless communication system are provided. A first BS transmits a signal including a first common information codeword and a first private information codeword. A second BS transmits a signal including a second common information codeword and a second private information codeword. A first RS joint-decodes the first common information codeword and the second common information codeword and decodes the first private information codeword. A second RS joint-decodes the first common information codeword and the second common information codeword and decodes the second private information codeword.

Method and apparatus for transmitting signals in a multi-hop wireless communication system

In a cell of a cellular wireless communication system, the SIR of at least one user in a sector of the cell is altered by temporarily reducing transmissions on a forward link in at least one other sector of the cell or a sector in another cell in accordance with a pattern.

Boosting a signal-to-interference ratio of a mobile station

An apparatus and method for cooperative relay in a multiple-antenna wireless communication system based on relay stations (RSs) are provided. The apparatus includes a serial/parallel converter for dividing data into N number of streams, a channel estimator for calculating a first transmission rate at which a RS performing the cooperative relay can perform decoding and a second transmission rate at which all relay stations performing the cooperative relay can commonly perform decoding, and determining transmission rates for each of the N-number streams, and an adaptive modulation and coding (AMC) unit for encoding and modulating the N-number streams according to their respective transmission rates.

Apparatus and method for cooperative relay in a wireless communication system based on relay stations

An apparatus and method for determining a beamforming vector in a codebook-based transmission beamforming system are provided. In a feedback method for a receiver in a codebook-based transmission beamforming system, forthcoming channel values for a forthcoming period are generated using M present and previous channel estimates. Effective channel gains for all transmission beamforming vectors included in a codebook are calculated using the forthcoming channel values. A codebook index corresponding to the maximum effective channel gains is fed back to a transmitter.

Apparatus and method for determining beamforming vector in a codebook-based beamforming system

In a cell of a cellular wireless communication system, the SIR of at least one user in a sector of the cell is increased by temporarily reducing transmissions on a forward link in at least one other sector of the cell or a sector in another cell in accordance with a pattern.

In a radio access network, the reverse link rate of an access terminal is controlled and stabilized by determining a number of connections in one or more sectors in which the access terminal has a connection and setting a rate limit based on at least one of the determined number of connections. The number of connections can be determined for each sector in which the access terminal has a connection or for some subset of these sectors. If the number of connections is determined for more than one sector, the radio access network may limit the reverse link rate based on the sector having the greatest number of connections.

Reverse link rate and stability control

In a radio access network (e.g., a cellular network), a radio node is configured to monitor one or more characteristics of a stream of data packets destined for an access terminal (e.g., a cellular telephone, laptop computer, etc.) to determine whether there is congestion in a network supplying the stream of data packets. If the radio node detects congestion, the radio node transmits a congestion alert to another device to cause the rate at which data enters the network to be slowed. The rate may be slowed either directly (e.g., by an upstream device which slows the rate at which the upstream device supplies the data to the network) or indirectly (e.g., by a downstream device which requests a slower delivery of data from the radio node).

Traffic management in a wireless data network

Growing community of inventors

Daejeon, South Korea

Sae-Young Chung