Samsung Electronics Co., Ltd.

Seung-joo Maeng

Jeong-heon Kim

Jae-ho Jeon

In-seok Hwang

Sang-hoon Sung

Jae-hee Cho

Hoon Huh

Soon-young Yoon

Seung-Joo Maeng

Jae-Ho Jeon

Soon-Young Yoon

Jeong-Tae Oh

Jeong-Heon Kim

Hee-Won Kang

Myung-Kwang Byun

Jae-Yoel Kim

Ji-Ho Jang

Young-Ky Kim

Jae-min Ahn

Jae-Hyok Lee

Ha-Young Yang

Hee-Kwang Lee

In-Seok Hwang

Sung-Won Lee

Won-Il Roh

Yu-Suk Yun

Byung-Chan Ahn

Jae-Hee Cho

Chan-Byoung Chae

Sung-Kwon Jo

Kyun-Byoung Ko

Jee-Hyun Kim

Hee-Sang Seo

Hong-Sil Jeong

Jung-Won Kim

Pan-Yuh Joo

Sung-ryul Yun

Hoon Suk Chang

Ji-Won Lee

Sang-Hoon Sung

Sang-Hyun Yang

Ki-Seob Hong

Joon-Young Bae

Woo-June Kim

Hong-Seong Chang

Jae-Weon Cho

Seung-Hwan Lee

Hyeon-Woo Lee

Hi-Chan Moon

Chae-Man Lim

Dong-Jun Lee

Yun-seok Choi

Hwa-Sun You

Seung-Hee Han

Neung-Hyung Lee

Jae-Heung Yeom

Il-Won Kwon

Ik-Beom Lee

Seung-Hyun Min

Jae-Min Ahn

Ki-Hwan Hwang

Yoo-Seung Song

Byung Chan Ahn

Seung-Hyeon Nahm

Young-Bin Chang

Chi-Woo Lim

Peng Xue

Ji-Yun Seol

Sung-Ha Kim

Kyeong-Cheol Yang

Sung-Ryul Yun

Min Sagong

Sung-Soo Hwang

Eun-Yong Kim

Nam-hoon Kim

Kwan-Hee Roh

Hyun-woo Lee

Jang-Hoon Yang

Chan-Hong Kim

Jung-Ah Choi

Yong-Ho Cho

Jong-Yoon Hwang

Sung-Chan Park

Sie-Joon Cho

Il-Whan Kim

Yeo-Hun Yun

Il-Jin Youn

Chang-Soo Park

Hye-Mi Park

Jee-Woong Kang

Ji-Ha Lee

Byung-Joon Park

Young Ky Kim

Jin-Ho Jang

Soo-Min Ko

Pil-Jae Moon

Yun-Jik Jang

Choong-Chae Woo

Won-Young Park

Soo-Jong Kim

Byung-Chan An

Evgeny Gontcharov

Jao-Ho Jeon

Hae-Won Kang

Hoe-Won Kang

Soon Young Yoon

Jae-Min; Ahn

The present disclosure relates to a communication technique for converging a 5G communication system, which is provided to support a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure relates to an efficient method and device for uplink communication in a narrow band system which provides an IoT service in a band for a broadband system, and a method for uplink communication in a narrow band system according to an embodiment of the present disclosure comprises the steps of: receiving, by a terminal, control information associated with uplink transmission of symbols from a base station; and performing, by the terminal, the uplink transmission using symbols except a second symbol overlapping with a first symbol for transmission of an uplink reference signal in a broadband system, on the basis of the control information.

Method and device for communication in narrow band system

An apparatus for a terminal in a wireless communication system includes a receiver configured to receive frame configuration information used by a second carrier which is operated using a Time Division Duplex (TDD) scheme and receive downlink data through downlink TDD-Frequency Division Duplex (FDD) Carrier Aggregation (CA) using a first carrier and the second carrier operated using an FDD scheme and a transmitter configured to transmit uplink data via the first carrier. The downlink data received via the second carrier is received through a downlink subframe identified by the frame configuration information.

Signal exchange equipment and method for time division duplex and frequency division duplex carrier aggregation in wireless communication system

A method and Mobile Subscriber Station (MSS) are provided for transmitting Channel Quality Information (CQI) in a wireless communication system. The method includes transmitting first information including a value related to CQI for at least one of bands; and transmitting second information including a differential CQI for the at least one of the bands, wherein each band comprises a plurality of adjacent subcarriers.

Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme

An apparatus and method reduce power consumption in a broadband wireless communication system. A transmitting end apparatus that includes a plurality of transmit (Tx) antennas includes a control block, a Processor (DSP) block, a modem block, and at least one power controller. The control block determines a traffic amount based on an amount of used resources. The Digital Signal Processor (DSP) block performs scheduling by using a subset of Tx antennas and a subset of resources on a frequency axis if the traffic amount is less than a threshold. The modem block applies boosting to a signal transmitted using the subset of resources. And at least one controller turns off an operation of at least one power amplifier that corresponds to at least one Tx antenna that is not included in the subset of Tx antennas.

Apparatus and method for saving power consumption in broadband wireless communication system

A method of determining a serving sub-cell of a terminal among a plurality of sub-cells by a base station in a wireless communication system is provided. The method includes generating reference signal transmission interval information for each of the sub-cells by configuring a reference signal transmission interval for each of the plurality of sub-cells, and transmitting the reference signal transmission interval information for each of the sub-cells to the corresponding sub-cell, receiving channel status information for at least one sub-cell among the plurality of sub-cells from the terminal, and determining a serving sub-cell of the terminal by using at least one of the reference signal transmission interval information, the channel status information, a reception time of the channel status information, of each of the sub-cells.

Method and apparatus for determining serving sub-cell in wireless communication system including multiple sub-cell

A resource allocation method of a Base Station (BS) in a wireless communication system is provided. The method includes estimating a size of a MAP message, and evaluating a size of an available burst allocation region according to the estimated size of the MAP message and allocating bursts in the evaluated-sized burst allocation region. Accordingly, when a DownLink (DL) subframe is used by being divining into a plurality of regions according to a burst characteristic, a throughput can be improved without waste of resources by estimating a resource amount occupied by a MAP message in the DL subframe.

Apparatus and method for estimating size of map message in broadband wireless communication

A system and method for adding a burst of a single-input multiple-output mode or collaborative spatial multiplexing mode to a frame in a spatial multiplexing system. A base station is configured to add a burst of a single-input multiple-output mode to a frame in a spatial multiplexing system. The system and method includes backing up a pilot pattern and a number of slots allocated for connections with terminals; releasing slots allocated for a burst; resetting a pilot pattern of a collaborative spatial multiplexing mode burst of the terminals: and recalculating the number of remaining slots; comparing the number of slots that can be additionally allocated to the single-input multiple-output mode with the number of slots released in the releasing step; and determining a transmission format.

Apparatus and method for adding burst of single-input multiple-output mode or collaborative spatial multiplexing mode to frame in spatial multiplexing system

A method for controlling uplink transmission power in a wireless communication system is provided. The method includes estimating a downlink path loss, determining a target Signal to Noise Ratio (SNR) depending on the downlink path loss, determining an amount of power to compensate for a difference between the target SNR and an estimated SNR, and transmitting a power control message including a Transmit Power Control (TPC) command value to a terminal based on the determined amount of power.

Method and apparatus for controlling uplink transmission power in wireless communication system

A method and Mobile Subscriber Station (MSS) are provided for transmitting Channel Quality Information (CQI) in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. A Carrier to Interference and Noise Ratio (CINR) of at least two bands are measured; each of the at least two bands including a plurality of adjacent subcarriers for a band Adaptive Modulation and Coding (AMC) operation. A Report Response (REP-RSP) message including first information related to the measured CINR is sent. Second information related to a differential CINR of the at least two bands is sent via a Channel Quality Information Channel (CQICH).

A base station in a wireless communication system and a method for controlling power by the same are provided. The method includes receiving channel state information from a mobile terminal, calculating information regarding a Modulation order Product code Rate (MPR) of the mobile terminal using the channel state information, and controlling transmission power for the mobile terminal according to the information regarding the MPR.

Method and apparatus for controlling power in wireless communication system

An apparatus and a method for controlling a data transmission rate in a broadband wireless communication system are provided. In the method, an interference factor representing an interference degree by an external sector is measured. Interference given to the external sector is estimated using the interference factor, an interference weight depending on a location of a terminal, and an amount of wireless resource use of a self sector. A data transmission rate is determined with consideration of an interference estimation value and a wireless channel state of the terminal.

Apparatus and method for controlling data transmission rate in broadband wireless communication system

An apparatus and method for estimating a MAP size in a broadband wireless communication system based on FFR are provided. In the method, one of a plurality of connections is selected according to priority between the connections. An available resource condition and a MAP size for allocation of resources for the selected connection is determined if resources acceptable for a burst are present in a zone including the selected connection. The next connection is selected according to the priority if available resources are present. The determined MAP size is determined as the final estimation value of a MAP size if the available resources are not present.

Apparatus and method for estimating map size in a broadband wireless communication system

A method and an apparatus reduce power used when a traffic load is low in a base station of a wireless communication system. The base station monitors a traffic load. When the traffic load is lower than a predetermined threshold and a Multiple Input Multiple Output (MIMO) mode is used to communicate with a mobile station, the MIMO mode is converted to a Single Input Multiple Output (SIMO) mode. The base station performs communication with the mobiles stations by using the SIMO mode. According to another embodiment, when the traffic load is lower than a predetermined threshold, the base station limits the number of Resource Blocks (RBs) that may be allocated to a coverage area of the base station. A Power Amplifier (PA) bias related to a transmission output of the base station is reduced based on the limited number of RBs, thereby saving power consumption of the base station.

Method and apparatus for power saving in wireless communication node B

A method and an apparatus for resource allocation scheduling in a wireless communication system are provided. The apparatus includes a scheduler for, if an UpLink (UL) scheduling for scheduling an allocation order of UL resources is performed prior to a DownLink (DL) scheduling for scheduling an allocation order of DL resources, setting a size &#x3b1; representing a size in which a DL burst region is maximally allocated in a DL sub frame, for, if the DL scheduling is performed prior to the UL scheduling, setting a size &#x3b2; representing a size in which the DL burst region is maximally allocated in the DL sub frame, for determining whether to discard a DL Medium Access Control (MAC) management message to be transmitted by using the size &#x3b2;, and for, if it is not determined to discard the DL MAC management message, determining a priority of a DL scheduling and a UL scheduling by using the size &#x3b1; and first performing one of the DL scheduling and the UL scheduling in accordance with the determined priority.

Method and apparatus for resource allocation scheduling in wireless communication system

Growing community of inventors

Seongnam-si, South Korea

Seung-Joo Maeng