Samsung Electronics Co., Ltd.

Korea University Research and Business Foundation

University of Seoul Industry Cooperation Foundation

Sung-Ho Chae

Cheol Mo Jeong

Jeong-ho Park

Nam-Jeong Lee

Peng Xue

Hyun-Seok Ryu

Jae-Weon Cho

Min Hee Jang

Min Jung Jang

Jae-Won Kim

Seok-Ki Ahn

Sung Hoon Lim

Sung-Jea Ko

Jeong-Ho Park

Jeong-Seok Ha

Jong-Bu Lim

Kang-won Jeon

Nam-jeong Lee

Tae-young Na

Won-Jong Noh

Hyung-Sup Jung

Mun-Cheon Kang

Sang-Seok Yun

Won-Kyung Baek

The present disclosure relates to a method and apparatus for phase unwrapping of an SAR interferogram based on an SAR offset tracking surface displacement model, in which the apparatus according to the present disclosure includes a Synthetic Aperture Radar (SAR) image acquisition unit that acquires two SAR images of a same object acquired at different times, a single look complex (SLC) image production unit that produces two SLC images corresponding to each of the two SAR images, an interferogram production unit that generates an SAR interferogram using SAR interferometry for the two SLC images, a surface displacement model production unit that produces an offset tracking surface displacement model using SAR offset tracking method for the two SLC images, an unwrapped residual interferogram generation unit that generates a residual interferogram by subtracting the SAR interferogram and the offset tracking surface displacement model, and generates an unwrapped residual interferogram by unwrapping the generated residual interferogram, and an unwrapped interferogram generation unit that generates an unwrapped SAR interferogram by adding the unwrapped residual interferogram to the offset tracking surface displacement model.

Method and apparatus for phase unwrapping of synthetic aperture radar (SAR) interferogram based on SAR offset tracking surface displacement model

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond a 4G communication system such as LTE. The present disclosure provides a method for supporting a device performing narrow band Internet of things (IoT) communication by a base station in a cellular system, the method comprising the operations of: transmitting a synchronization sequence for synchronization between the base station and the device performing the narrow IoT communication; transmitting system information including a two-bit mode indication field which indicates an operation mode for performing the narrow IoT communication, the operation corresponding to one of a plurality of operation modes; and transmitting a control channel and a data channel on the basis of parameters for the narrow band IoT communication, the parameter being included in the system information, wherein the operation modes include at least one of a standalone mode, a guard-band mode, an in-band mode in which the cellular system and the narrow band IoT communication use a common cell ID, or an in-band mode in which the cellular system and the narrow band IoT communication use different cell IDs.

Method for operating IoT in cellular system and system therefor

An electronic apparatus is disclosed. The electronic apparatus includes an inputter configured to receive a binocular image which is a captured image of both eyes of a user and a stereo image which is an image of a direction corresponding to a gaze of the user captured at locations spaced apart from each other, and a processor configured to detect a watch point of a user in the stereo image by using the binocular image, obtain a disparity map in the input stereo image, and compensate the detected watch point using the obtained disparity map.

Eye watch point tracking via binocular and stereo images

The present disclosure relates to a communication technique for combining a 5G communication system that supports higher data transmission rates after 4G systems with IoT technology and to the system therefor. The present disclosure can be applied for intelligent services based on 5G communication technology and IoT related technology (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, and the like). A method for determining an uplink transmission resource of a wireless communication system comprises the steps of: obtaining one or more of first distance information between a first base station supporting a first communication system and a terminal supporting the first communication system, and second distance information between a second base station supporting a second communication system and the terminal; and determining a frequency resource and transmission power for uplink signal transmission of the first terminal based on one or more of the obtained first distance information and second distance information.

Method and apparatus for determining transmission resource and transmission power in wireless communication system

The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate successive to a 4G communication system such as LTE. The present disclosure provides a communication method of a Base Station (BS) using an Integer Forcing (IF) scheme in a Multi-User Multiple-Input and Multiple-Output (MU-MIMO) communication system, the method including: receiving a reception signal including a desired signal transmitted from at least one User Equipment (UE) served by the BS and an interference signal transmitted from at least one UE served by a neighboring BS; determining an IF filter considering the interference signal based on information on the interference signal received from the neighboring BS; filtering the reception signal using the determined IF filter; and detecting or decoding at least one of the desired signal and the interference signal using the filtered reception signal.

Integer forcing scheme for multi-user MIMO communication

A method for receiving a signal by integer forcing in a wireless communication system is provided. The method includes receiving one or more signals through a plurality of antennas, filtering the received one or more signals using a forcing matrix, generating codewords by remapping the filtered one or more signals, acquiring a summed codeword by performing a modulo operation on the codewords, decoding the summed codeword, and acquiring original codewords by performing an inversion operation on the decoded summed codeword.

Scheme for communication using integer-forcing scheme in wireless communication system

The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method for receiving data includes selecting one of reception schemes, and receiving data based on the selected reception scheme, wherein the reception schemes includes a scheme of determining an integer matrix based on channel values estimated for channels, and decoding symbols received through the channels based on the determined integer matrix, and a scheme of detecting, for each channel, a sum of symbols received from each of the channels during a preset time based on integer matrixes which are determined based on each of the channel values, retransforming the sum of the symbols detected for each channel based on at least one of the integer matrixes, and decoding the retransformed sum of the symbols for each channel.

Method and apparatus for receiving data in communication system supporting multiple input multiple output scheme

The present disclosure relates to an apparatus and method supportive of distributed turbo coding based on relay network utilizing a noisy network coding scheme. For this, included is a relay node operating as a component encoder to relay a signal from a source node to a next node in a distributed turbo coding scheme. The relay node quantizes the signal transmitted from the source node and then interleaves the quantized signal using a predetermined pattern to distinguish the signal transmitted from the source node from a signal to be output from an opposing node, so that the signal transmitted from the source node is relayed to the next node based on a noisy network coding scheme.

Distributed turbo encoder and method

Growing community of inventors

Seoul, South Korea

Sung-Ho Chae