Samsung Electronics Co., Ltd.

Seoul National University

Snu Rdb Foundation

Huiwon Je

Junho Lee

Jaein Kim

Jinwon Choi

Jungmin Park

Jeonghun Kim

Kwangbok Lee

Seungjin Choi

Jonggun Moon

Hyunseung Joo

Jaehwan Lee

Byongok Lee

Hyukyeon Lee

Kyunghoon Won

Illsoo Sohn

Hwanmin Park

A wireless communication device is provided. The wireless communication device includes: a communication circuit configured to transceive a signal using a plurality of antennas; a processor configured to: detect a first interference for N resource blocks (RB) of the signal; based on the first interference being detected, perform a first whitening validation on the first interference; detect a second interference based on a result of the first whitening validation; and based on the second interference being detected, perform a second whitening validation on the second interference; and a whitening filter circuit configured to perform whitening filtering on results of the first whitening validation and the second whitening validation.

Wireless communication device and operating method of the same

A method of operating a wireless communication device including a plurality of antennas according to an exemplary embodiment of the present disclosure includes determining an antenna subset including at least one of the plurality of antennas, transmitting a sounding reference signal (SRS) switching signal to a base station through at least one antenna of the antenna subset, receiving a channel state information-reference signal (CSI-RS) transmitted using a first beam from the base station, selecting a precoding matrix indicator (PMI) based on the CSI-RS, transmitting the selected PMI to the base station, and receiving a signal transmitted from the base station through a second beam determined based on the SRS switching signal and the PMI.

Method and apparatus for wireless communication using beam-forming in wireless communication system

An operating method of a wireless communication device includes receiving a reference signal from a base station, estimating a first channel between the wireless communication device and the base station based on the reference signal, extracting, based on a first artificial intelligence model trained to reduce a difference between the first channel estimated by the wireless communication device and a second channel estimated by the base station, a feature including grouped attributes from the first channel, quantizing the grouped attributes using a codebook that is based on a second artificial intelligence model and by generating one or more indices of the codebook for each group of the attributes, and transmitting, to the base station, a bitstream including combination information of the indices of the codebook.

Method and apparatus for transmitting channel state information

There is provided a method of transmitting and receiving user equipment management information and electronic device for performing the same. The electronic device includes a communication interface including a plurality of phase array antennas, a storage configured to store user equipment (UE) management information including information about at least one frequency band covered by each of the phase array antennas, and a controller configured to control to transmit the UE management information to a base station.

Method of transmitting and receiving user equipment management information in wireless communication system and electronic device for performing the method

Method and apparatus communication using beam-forming in wireless communication system

A method of operating a communication device includes: sweeping a plurality of first reception beams; measuring reference signals, received from another communication device, based on the plurality of first reception beams; estimating a downlink channel gain based on the measured reference signals and reception array response information corresponding to reception antenna characteristics of the communication device; generating a downlink channel related matrix based on the downlink channel gain and the reception array response information; determining a second reception beam based on the downlink channel related matrix; determining a transmission beam based on at least one of the downlink channel gain, the downlink channel related matrix, and the second reception beam; and performing communication with the other communication device using the second reception beam and the transmission beam.

Terminal performing beam sweeping operation and method of operation thereof

A method of performing beam training including obtaining at least one of a probability distribution and a value function for selecting one of a plurality of beams that are used to perform beamforming, selecting a candidate beam from among the plurality of beams based on the at least one of the probability distribution and the value function, the candidate beam being expected to be a best beam among the plurality of beams, performing a present training operation based on the candidate beam and a previous beam selected by at least one previous training operation, and selecting a better one of the candidate beam and the previous beam as a present beam based on a result of the present training operation may be provided.

Method of performing beam training based on reinforcement learning and wireless communication device performing the same

A wireless communication method is provided in which beam training phases alternate with data transmission phases. The method includes estimating a first channel based on a signal received using one or more first training beams in a first beam training phase, and calculating, based on the estimated first channel and a first objective function corresponding to the estimated first channel, a first data beam for a first data transmission phase from the one or more first training beams in the first beam training phase, the first data transmission phase following the first beam training phase.

Apparatus and method for wireless communication including beam training

The present invention provides a radio transmitting and receiving apparatus having multiple antennas that can decrease an influence due to interference between cells that exists in a multi-cell environment, by using a transmission method that not only considers performance of a corresponding cell but also an influence due to interference on adjacent cells and an influence due to interference from the adjacent cells in a multi-user and multi-cell environment, effectively use limited radio resources, and increase a data rate of a radio communication system, and a method thereof.

Transmitting and receiving apparatus having plural antenna in multi-user environments and method thereof

The invention relates to a multi-transmission/reception antenna device and a multi-transmission/reception method in a multi-user and multi-cell environment. When a plurality of spatial subchannels having a multi-user and a multi-transmission/reception antenna are allocated to users (that is, user terminals), a user group to be supported and the number of users are selected in consideration of an influence of interference signals from adjacent cells. Accordingly, variability and independence of channels for users and interference signals from adjacent cells can be effectively used, thereby improving a transfer rate of a wireless communication system. The invention allows data transfer at higher speed with limited wireless resources. In particular, an influence of interference from adjacent cells that is inevitable in a multi-cell environment primarily used for the efficient use of wireless resources can be removed using a multi-transmission/reception antenna, while a transfer rate of each user can be effectively increased.

Growing community of inventors

Gwacheon-si, South Korea

Huiwon Je