Samsung Electronics Co., Ltd.

Yonsei University

Lg Electronics Inc.

Sooyong Choi

Seongbae Han

Kyungsik Min

Minchae Jung

Yeohun Yun

Hyungju Nam

Dongheon Lee

Moonchang Choi

Younsun Kim

Hyoungju Ji

Taehyoung Kim

Juho Lee

Hyojin Lee

Youn-Sun Kim

Youngrok Jang

Young-Woo Kwak

Hoon-Dong Noh

Kyuho Hwang

Gyuyeol Kong

Junggyun Park

Kwangseok Noh

Young Soo Kim

Dongkyu Kim

Jaewon Kim

Chang Soon Park

Sangjoon Park

Jungkyun Park

Young Jun Hong

Sangwoo Kim

Chanhong Kim

Wonsuk Chung

Tae In Hyon

Sang-Joon Park

Yongok Kim

Daesik Hong

Chaehee Lim

Hyung-Ju Nam

Seongyeop Joung

Chanuk Jeong

Provided is a communication system for supporting higher data rates. A method by which a user equipment selects a beam for transceiving data to or from a base station in an initial access mode is provided. The method includes determining a first receive-beam-parameter including information about the number of receive antennas to be used for first beam searching, receiving, from the BS, a first transmit-beam-parameter including information about the number of transmit antennas to be used for the first beam searching, receiving first RS identified based on the first transmit-beam-parameter while changing a receive beam based on the first receive-beam-parameter, selecting a transmit beam and a receive beam to be used for data transmission and reception, based on the received first RS, and transmitting information about the transmit beam to the BS.

Method and apparatus for selecting beam in wireless communication system preliminary class

The disclosure relates to a wireless communication system, and relates to a method and apparatus for scheduling a plurality of user equipments (UEs) by considering a frequency selectivity. A method, performed by a base station, for transmitting or receiving data in a wireless communication system according to an embodiment includes determining a UE candidate group set based on channel state information for channels of a plurality of carriers, determining an offset used to adjust the number of UEs of the UE candidate group set, based on frequency selectivity information between a representative channel selected from among the channels of the plurality of carriers and other channels, based on the offset, determining a plurality of UEs to which data is to be transmitted, and transmitting the data to the determined plurality of UEs.

Method and apparatus for multi-user scheduling in wireless communication system

A method for estimating a self-interference channel by a communication device which operates in a full-duplex mode can comprise the steps of: determining the amount of resources to be used for estimating a self-interference channel for each antenna; transmitting a reference signal by means of resources distinguished by means of each antenna in accordance with the amount of resources that has been determined for each antenna; and estimating the self-interference channel on the basis of the reference signal.

Method for estimating self-interference channel and device for same

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4-Generation (4G) communication system such as long-term evolution (LTE). An operating method of a reception device in a wireless communication system includes: receiving a signal transmitted through a plurality of antennas of a transmission device; determining an initial symbol vector based on the signal; determining a first candidate symbol vector based on a plurality of solution vectors which are obtained by a search on the initial symbol vector; determining a second candidate symbol vector by flipping at least one symbol value of the first candidate symbol vector; and determining a symbol vector transmitted from the transmission device based on at least a portion of the second candidate symbol vector.

Method and apparatus for detecting signal in wireless communication system

A method and a terminal for transmitting a feedback signal by a terminal in a wireless communication system are provided. The method includes receiving, from a base station, a feedback information configuration; receiving, from the base station, a reference signal; estimating a channel between the base station and the terminal based on the reference signal; configuring channel component information associated with separating each of a plurality of channel elements of the channel according to components of the plurality of channel elements; configuring grouping information associated with grouping the plurality of channel elements; and transmitting feedback information including the configured channel component information and the configured grouping information.

Method for configuring feedback information to feed explicit channel state information back in wireless communication system

A method for estimating a self-interference channel by a communication device which operates in a full-duplex mode can comprise the steps of: transmitting a reference signal in a first transmission unit by means of resource elements (REs) of which the number is smaller than the number of antennas of a communication device; estimating a self-interference channel by using a first reference signal matrix, which is returned by means of a self-interference channel in the first transmission unit, and reference signal matrices which are returned by means of a self-interference channel in a predetermined number of transmission units prior to the first transmission unit; and storing information about the estimated self-interference channel.

Disclosed are feedback and transmission devices and methods in full-dimension multi-antenna systems using two-dimensional (2D) planar array antennas, wherein a UE estimates channel states each corresponding to a respective one of multiple domain channels by a reference signal received from a base station, and obtains precoding matrix indicators (PMIs) each corresponding to a respective one of the multiple domain channels and rank indicators (RIs) each corresponding to a respective one of the multiple domain channels based on the estimated channel states. The UE may determine a joint rank indicator (JRI) using the obtained PMIs and the RIs and transmit feedback information containing the determined JRI to the base station.

Feedback apparatus and method in multi-antenna system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments of the present disclosure, a method for operating a receiving device in a wireless communication system is provided. The method includes receiving a signal from a transmitting device which includes a plurality of transmit antennas, determining, based on the signal, multiple symbol vectors from symbol vectors possibly transmitted from a first transmit antenna and a second transmit antenna of the plurality of transmit antennas, and determining combinations of symbols transmitted from the first transmit antenna and the second transmit antenna by searching, for each of the multiple symbol vectors, at least one other symbol vector within a first preset distance from each of the multiple symbol vectors.

Method and apparatus for detecting a signal in a wireless communication system

A method for transmitting feedback configuration information by a terminal configured to perform communication through a channel in a wireless communication system is provided. The method includes configuring channel component information for separating each of a plurality of channel elements of the channel according to components of the plurality of channel elements; configuring grouping information for grouping the plurality of channel elements; configuring order sorting information for sorting an order of the plurality of channel elements; configuring probability distribution approximation information for probability distribution approximating the plurality of channel elements; and transmitting the configured channel component information, grouping information, order sorting information, and probability distribution approximation information.

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to the transmission and the reception of filter bank multi-carrier (FBMC) symbols in a wireless communication system, a method for operating a transmitting end comprises the step of: generating a first symbol in which sample values of a front end are shifted to a rear end; generating a second symbol in which sample values of a rear end are shifted to a front end; and transmitting a plurality of symbols comprising the first symbol and the second symbol on a time axis in an overlapping manner.

Device and method for transmitting filter bank multi-carrier symbols in wireless communication system

The present invention relates to a transceiving method and apparatus that enable QAM signal transmission in a filter bank multi-carrier (FBMC) communication system and provides, in particular, a transceiving method and apparatus that enable quadrature amplitude modulation (QAM) signal transmission without intrinsic interference by separating filtering between a sub-carrier having an even index and a sub-carrier having an odd index, and superimposing and transmitting sub-carriers filtered by means of separation. The thus-rendered present invention is a transmission method in the FBMC communication system, the method comprising the steps of: dividing at least two QAM signals into a plurality of groups; performing filtering on each of the plurality of groups; and superimposing and transmitting the QAM signal in the plurality of groups filtered on a time axis. The present invention relates to a transmission method and apparatus, and a corresponding reception method and apparatus.

Transceiving method and apparatus for modulation signal transmission in filter bank multi-carrier communication system

The present disclosure relates to a pre-5-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4-Generation (4G) communication system such as Long Term Evolution (LTE). Various exemplary embodiments of the present disclosure include: performing Fourier transform with respect to a plurality of modulation signals; dividing the plurality of transformed signals into at least two groups; generating FBMC symbols corresponding to the groups; transmitting the FBMC symbols.

Apparatus and operating method for controlling peak to average power ratio of signal in wireless communication system

A PSCG feedback-based multi-stream multiuser CQI estimation method and apparatus is provided for estimating multi-stream MU-CQI efficiently based on per-stream channel gain feedback. A feedback information transmission method of a terminal in a wireless communication system according to the present disclosure includes estimating a downlink channel based on a channel state information reference signal transmitted by a base station, determining a number of streams based on the estimated downlink channel, generating the feedback information corresponding to the number of streams, and transmitting the feedback information to the base station.

Per-stream channel gain feedback-based multi-stream MU-CQI estimation method and apparatus

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 Long Term Evolution (LTE). A packet transmission method and apparatus for use in a wireless communication system and, in particular, for transmitting packets in a filter bank-based multicarrier wireless communication system. The packet transmission method for use in a wireless communication system based on Filter Bank-based Multi-Carrier (FBMC) includes generating an Offset Quadrature Amplitude Modulation (OQAM) symbol by extracting a transmission data period from data blocks obtained by repeating a transmission data as many times as an overlapping factor, performing Inverse Fast Fourier Transform (IFFT) on the OQAM symbol, shifting, when the overlapping factor is an even number, the IFFT-ed symbol cyclically, filtering the cyclically shifted symbol with a shortened compensation filter, and transmitting the filtered symbol in an overlapped OQAM signal.

Packet transmission method and apparatus for use in filter bank-based multi-carrier wireless communication

Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transfer rate higher than that of a 4G communication system, such as LTE, and subsequent systems. The present invention relates to a method for transmitting and receiving a QAM signal in a filter bank-based multicarrier communication system, and an apparatus therefor. Particularly, the present invention provides an efficient transmission and reception method and apparatus capable of obtaining high performance in the transmission of a QAM signal without intrinsic interference in a multi-path delay channel environment in a filter bank-based multicarrier communication system. Accordingly, the present invention relates to a transmission method in a filter bank-based multicarrier (FBMC) communication system, and an apparatus therefor, the method comprising the steps of: spreading each of two QAM signals divided into a plurality of groups to a plurality of signals on a frequency axis; intersecting at least one signal, which is overlapped with a spread signal of an adjacent QAM signal among the plurality of spread signals, with the spread signal of the adjacent QAM signal; filtering, by each of the plurality of groups, the plurality of spread signals of which at least one signal has been intersected; and transmitting the plurality of filtered spread signals by being overlapped on a time axis.

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Seoul, South Korea

Sooyong Choi