Samsung Electronics Co., Ltd.

Dongbu Hitek Co., Ltd.

Lms Co., Ltd.

Lg Electronics Inc.

Korea Advanced Institute of Science and Technology

Dongbu Electronics, Co. Ltd.

Jeong-ho Park

Hyun-Kyu Yu

Su-Ryong Jeong

Cheol Mo Jeong

Tae-Young Kim

Ji-Yun Seol

Jae-Weon Cho

Jae-Won Kim

Tae-young Kim

Jae-Hee Cho

Ho-Kyu Choi

Hyun-Seok Ryu

Kwan-Hee Roh

Kyung-Whoon Cheun

Chi-Woo Lim

Won-Il Roh

Min Sagong

Sung-Nam Hong

Jin-Kyu Koo

Nam-Jeong Lee

Jun-Sung Lim

Hee-Won Kang

Peng Xue

Joon-Young Choi

Shuangfeng Han

Min-chul Lee

Hyun-Jeong Kang

Young-Bin Chang

Soon-Young Yoon

Rakesh Taori

Dong-seek Park

Mi-Hyun Lee

Kang-jin Yoon

Jae-Eun Kang

Hyuk-Min Son

Kwang-min Park

Anil Agiwal

Jaehyuk Jang

Jung-Je Son

Yeong-Moon Son

Seung-Hoon Park

Jae-Seung Son

Chang-Hyun Kim

Kyung-Kyu Kim

Hyeon-Woo Lee

Yong-Hoon Lee

Young-Il Kim

Yong Hoon Lee

Seok-Ki Ahn

Seong-Jin Kim

Nam-Gi Kim

Hwa-Sun You

Noh-Gyoung Kang

Min-Hee Cho

Dong-Seek Park

Sung-Ho Chae

Sang-Won Choi

Won-Jun Hwang

Bo-Hyun Kang

Hyun-surk Ryu

Dong-Hwi Roh

Jong-Ho Oh

Si-hoon Lee

Si-Hyun Park

Sung-Rok Yoon

Won-Suk Choi

Jae-Yun Ko

Long Yan

Oh-hyun Kwon

Minhyun Kim

Byung-Hwan Lee

Seongjin Kim

Kwang-Taik Kim

Min-Hyun Kim

Do-Young Jung

Yong-Shig Shim

Won-Joon Hwang

Eun-je Hyun

Young-Soo Do

Chang-hyun Kim

Eui-Tae Hwang

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

An electronic device includes a pop-up device configured to be inserted into a main body of the electronic device in an inserted state, including a gas sensor including a sensor block for sensing a gas, and configured to expose the sensor block to an outer portion of the electronic device in a pop-up state; a power supplier arranged on an outer portion of the pop-up device, configured to supply electric power to the gas sensor; and a connection controller configured to control a connection state of the pop-up device, to block supply of electric power to the gas sensor when the pop-up device is in the inserted state and to supply electric power to the gas sensor when the pop-up device is in the pop-up state, including one or more terminals formed on the pop-up device that move together with the pop-up device when the pop-up device moves.

Electronic device including gas sensor and method of operating the same

A gas sensing system includes a driving circuit chip, and a gas sensor, a temperature sensor, and a humidity sensor, which are located on the driving circuit chip. The gas sensing system compensates a gas sensing result based on at least one of a temperature sensing result and a humidity sensing result and generates a gas sensing signal. The gas sensor includes a first resonator and a first sensing film being configured to sense a first gas and located on the first resonator to be exposed to the outside. The temperature sensor includes a second resonator and an encapsulation layer located above the second resonator not to expose the second resonator to the outside, and the humidity sensor includes a third resonator.

Gas sensing device, electronic device including the gas sensing device, and gas sensing system

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 gas sensor including a gas sensing device having a resonant frequency that varies with adsorbed chemicals, a frequency detector configured to detect the resonant frequency of the gas sensing device, a calibrator configured to generate current calibration data based on the resonant frequency of the gas sensing device which has been heated to a calibration temperature in a calibration mode, and a compensator configured to adjust an output value of the frequency detector based on the current calibration data in a sensing mode may be provided.

Gas sensor and gas sensing method for providing self-calibration

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 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

An apparatus and a method for controlling a beamforming gain in a wireless communication system are provided. The method includes determining whether to control a beamforming gain, controlling the beamforming gain via change of a beam width if it is determined to control the beamforming gain, and transmitting or receiving a signal according to the controlled beamforming gain.

Apparatus and method for controlling adaptive beamforming gain in wireless communication system

The present invention relates not only to a fourth-generation (4G) communication system, such as long-term evolution (LTE), but also to a fifth-generation (5G) or pre-5G communication system to be provided to support a higher data transfer rate. The present invention provides a method for a first device in a communication system supporting a device-to-device (D2D) scheme, the method comprising the steps of: when existence of a second D2D device, of which the location information needs to be detected, has been detected, transmitting a discovery request message which requests activation of at least one of an urgent discovery operation and a location measurement operation; receiving a discovery response message to the discovery request message from at least one device including the second device; and transmitting, to the second device, information related to execution of the location measurement operation.

Location detection apparatus and method in communication system supporting device-to-device scheme

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

A method for transmitting data by a transmission node in a wireless communication system is provided. The method includes transmitting, to a base station, a channel information request, transmitting, to the base station, a data packet based on a first channel information value received in response to the transmitted channel information request, and awaiting reception of a response packet indicating reception of the data packet from the base station, if the reception of the response packet fails during a predetermined time interval, detecting an energy level of a signal received in the predetermined time interval, and reconfiguring one of a transmitting method for the response packet and a transmitting method for a next data packet based on the detected energy level.

Method and apparatus for transmitting and receiving data in mobile communication system

Growing community of inventors

Seoul, South Korea

Jeong-ho Park