Samsung Electronics Co., Ltd.

Su-Ryong Jeong

Hyun-Kyu Yu

Jeong-ho Park

Tae-Young Kim

Ji-Yun Seol

Tae-young Kim

Cheol Mo Jeong

Chi-Woo Lim

Jae-Won Kim

Keon-Kook Lee

Jae-Weon Cho

Ho-Kyu Choi

Young-Kwon Cho

Hyun-Il Yoo

Jee-Hwan Noh

Dong-seek Park

Jae-Seung Son

Chang-Ho Suh

Seung-Hoon Choi

Joon-Young Choi

Sung-Nam Hong

Seung-Hoon Park

Sung-Eun Park

Min Sagong

Jun-Sung Lim

Seok-hyun Yoon

Mi-Hyun Lee

Hyeon-Woo Lee

Shuangfeng Han

Jung-Soo Woo

Noh-Gyoung Kang

Kyung-Whoon Cheun

Jung-Min Ro

Jeong-Ho Park

Byung-Moo Lee

Jin-Kyu Koo

Young-Kyun Kim

Deok-Ki Kim

Byung-Hwan Lee

Jaehyuk Jang

Young-Han Nam

Yeong-Moon Son

Rakesh Taori

Jung-Soo Jung

Youn-Sun Kim

Hee-Won Kang

Kyung-Kyu Kim

Hyun-Seok Ryu

Chan-Byoung Chae

Eun-Taek Lim

Chang-Yoon Oh

Kang-jin Yoon

Song-Nam Hong

Jae-Eun Kang

Seok-Hyun Yoon

Sung-Kwon Hong

Chan-Hong Kim

Dong-Seek Park

Bo-Hyun Kang

Nam-Jeong Lee

Jong-Bu Lim

Elisabeth De Carvalho

Ki-Chun Cho

Jun-Young Jung

Kyeong-Yeon Kim

Jae-won Kim

Hyuk-Min Son

Chae-Hee Lim

Huan Cong Nguyen

Young-Kwon 249-1204 Ssangyong Apt Cho

A method and apparatus for transmitting and receiving data in a communication system using beamforming are provided. The transmission method includes transmitting a control channel signal in a control channel region of a subframe using a first transmission beam of a base station. The transmission method also includes transmitting a data signal during a predetermined time period of a data region after the control channel region in the subframe using a second transmission beam determined based on the first transmission beam. The transmission method further includes transmitting a data signal in a remaining data region following the predetermined time period using a scheduled transmission beam.

Method and apparatus for transmitting and receiving data in a communication system using beamforming

An apparatus implements methods for random access in a wireless communication system using beamforming. A Subscriber Station (SS) measures a best downlink transmission beam among downlink transmission beams transmitted from a Base Station (BS), and transmits Random Access Channel (RACH) information, which includes indication information indicating the best downlink transmission beam, to the BS. The BS receives RACH information which includes indication information indicating a best downlink transmission beam among downlink transmission beams, and detects a RACH sequence and the best downlink transmission beam from the received RACH information.

Apparatus and method for random access in wireless communication system using beamforming

To adaptively determine a Tx beam subset for random access in a wireless communication system, a method for operating a Mobile Station (MS) includes determining at least one beam subset which satisfies a predefined condition, among a plurality of beam subsets, and transmitting random access preambles using Tx beams of the at least one beam subset. An MS in a wireless communication system includes a controller configured to determine at least one beam subset that satisfies a condition, among a plurality of beam subsets, and a transmitter configured to transmit random access preambles using Transmit (Tx) beams of the at least one beam subset, wherein the plurality of the beam subsets each comprise a plurality of beams radiating to different directions from one another. Other embodiments including a base station and a mobile station are also disclosed.

Apparatus and method for adaptively determining Tx beam subset for random access in wireless communication system

A method by which a small base station (BS) transmits a discovery signal (DS) in a mobile communication system is provided. The method includes a macro BS to which a component carrier (CC) of a predetermined frequency band is allocated, and at least one small base station to which N number of CCs of a frequency band different from that of the CC allocated to the macro base station are allocated. The method comprises the steps of generating the DS corresponding to predetermined information and transmitting the generated DS through a discovery channel (DCH) configured as a transmission resource of the macro base station, wherein the predetermined information is one among information on at least one CC that the small base station uses, cell ID (CID) index information of the small base station, and a sleep base station index when the small base station is in a sleep mode.

Device and method for transmitting and receiving discovery signal of base station in mobile communication system

The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a data rate higher than that of a 4G communication system, such as LTE, and subsequent communication systems. The present disclosure relates to a method for transmitting a reference signal (RS) in a wireless communication system, comprising the steps of: configuring a transmission resource by including at least one resource block (RB), which does not map the RS, between two RBs, which map the RS, in a first subframe; transmitting a first message for directing an RB offset indicating a gap between the two RBs, which map the RS, and locations of the RBs, which map the RS; and transmitting the RS through the configured transmission resource.

Method for transmitting and receiving reference signal in wireless communication system

The present disclosure relates 5G or pre-5G communication systems for supporting higher data transmission rate than those by LTE or other post-4G communication systems. According to the present disclosure, a method for operating a beamformed reference signal by a base station and terminal in a communication system, and the terminal, are provided. The method includes transmitting, to a terminal, control information indicating whether a first codebook is used for generating feedback information on a downlink reference signal. The first codebook is used if generating feedback information on the beamformed reference signal and is generated based on a number of antenna ports and a number of ranks.

Method and apparatus for operating beamformed reference signal in communication system

An apparatus implements methods for random access in a wireless communication system using beamforming. A Subscriber Station (SS) measures a best downlink transmission beam among downlink transmission beams transmitted from a Base Station (BS), and transmits Random Access Channel (RACH) information, which includes indication information indicating the best downlink transmission beam, to the BS. The BS receives RACH information which includes indication information indicating a best downlink transmission beam among downlink transmission beams, and detects an RACH sequence and the best downlink transmission beam from the received RACH information.

The present disclosure is related to a 5generation (5G) or pre-5G communication system to provide higher data rates than a 4generation (4G) communication system such as long term evolution (LTE). A method for adjusting a receive beam gain by a user equipment (UE) in a wireless communication system is provided. The method includes estimating a received signal quality value based on a reference signal received from a base station (BS), transmitting information about the estimated received signal quality value to the BS, comparing the received signal quality value with a minimum received signal quality value required for successful reception of data from the BS, and adjusting a receive beam gain to be used for data reception by turning on/off a radio frequency (RF) chain formed for each of antennas included in the UE based on a result of the comparison.

Apparatus and method for adjusting receive beam gain in a 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 long term evolution (LTE). The method includes: receiving information on a battery threshold of a terminal from a base station; determining whether to use a reception beam width wider than a currently used reception beam width, by comparing a battery level of the terminal with the battery threshold; transmitting additional resource request information to the base station when it is determined that a wider reception beam width is used; and when an additional resource corresponding to the additional resource request information is allocated from the base station, blocking a power supply of at least one antenna reception circuit among multiple antenna reception circuits corresponding to multiple antenna elements in order to form at least one reception beam having the wide reception beam width.

Method and apparatus for adjusting beam width in wireless communication system

Disclosed is a 5G or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4G communication system such as LTE. A method for cancelling self-interference in a full-duplex communication system is provided. The method comprises the steps of: cancelling cancellable self-interference components through an analog interference cancellation circuit, and estimating a channel state of an uplink channel and a channel state of a downlink channel on the basis of remaining residual self-interference components; estimating a channel capacity for each of possible beam combinations on the basis of the estimated uplink channel state and downlink channel state; selecting the beam combination having the largest channel capacity from among the possible beam combinations; and cancelling self-interference from a received signal on the basis of the selected beam combination.

Method and device for self-interference cancellation in full-duplex communication system

Growing community of inventors

Yongin-si, South Korea

Su-Ryong Jeong