Electronics and Telecommunications Research Institute

Kt Corporation

Samsung Electronics Co., Ltd.

Sk Telecom Company, Ltd.

Hanaro Telecom., Inc.

Ktfreetel Co., Ltd

Sk Telekom Co., Ltd.

Byung-Han Ryu

Jae-Heung Kim

Seung-Chan Bang

Chul-Sik Yoon

Jung-Im Kim

Kun-Min Yeo

Soon-Yong Lim

Nam Hoon Park

Geon-Min Yeo

Jun Sik Kim

Kang-Hee Kim

Seung Chan Bang

Young Jick Bahg

Jae Heung Kim

Jae-Hee Cho

Young-Jo Ko

Kyoung-Seok Lee

Sang Chul Oh

Kyung Sook Kim

Soo-Jung Jung

Kyong Tak Cho

Kyoung Seok Lee

Kwang-Soon Kim

Yeon Seung Shin

Seung-Ku Hwang

Seung-Que Lee

Sung Gu Choi

SoonGi Park

Keun Young Kim

Youn Ok Park

Jun-Woo Kim

Jee Hwan Ahn

Il-Soon Jang

DongSeung Kwon

Geon Min Yeo

Min-Hee Cho

Young Jo Bang

Yoan Shin

Chang Wahn Yu

Chang-Wahn Yu

Eun Seon Cho

Seungjae Bahng

Hong Soog Kim

Jung Pil Choi

Chan Yong Lee

Kanghee Kim

Kwang-Seop Eom

Hyung Deug Bae

Hyung-sub Kim

Chong Hyun Lee

Myung-Sik Yoo

Jae Kyun Kwon

Kang-Il Ahn

Seung-Wan Ryu

Dong-Hoi Kim

Hwan Souk Yoo

Youngsuk Suh

Kyungsu Yun

Suck-Chel Yang

Hyun-Hwa Seo

Seok-Joo Shin

Boong-Gee Song

The present application relates to a scheduling device and method of a mobile communication system. In the packet scheduling method, a base station performs packet scheduling for a terminal station in a mobile communication system, and a transport channel comprising an uplink shared channel (UL-SCH) and a physical channel comprising an uplink grant channel (UL-GCH) between the terminal and the base station are classified into a plurality of channels. In addition, in the packet scheduling method: a) the base station receives scheduling information from the terminal; b) the base station allocates an uplink resource for uplink traffic transmission for terminal based on the received scheduling information; and c) information for the allocated uplink resource is transmitted to the terminal through the UL-GCH of the physical channel.

Method for scheduling in mobile communication and apparatus thereof

The present invention relates to aApreamble allocation methodand a random access methodin a mobile communication system. In the present invention,includes allocatingone among preamble resourcesis allocatedtoaspecific mobilestationsstationin advance, before random access. The mobilestations requeststation requestsrandom access by transmitting a preamble based on the pre-allocated preamble resource to a base station.It is therefore possible to preventAcollision caused bythe fact that other mobile stations transmit the same preamblethe same preamble transmission by another mobile station may be prevented.

Preamble allocation method and random access method in mobile communication system

Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including the steps of: a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode.

Method and apparatus for discontinuous transmission/reception operation for reducing power consumption in cellular system

Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present invention provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including the steps of: a) establishing discontinuous transmission/reception (DTX/DRX) parameters including discontinuous DTX/DRX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DTX/DRX based on the DTX/DRX parameters in the terminals operating in the transmission suspension mode.

Method for reducing power consumption of a terminal in cellular system

Disclosed is a method and apparatus for RA in a cellular system. The RA in the cellular system includes receiving an RA preamble from a terminal for RA, transmitting, to the terminal, an RA response message including a sequence of the received RA preamble and uplink resource information of the terminal and overload state information with respect to the RA, receiving control information generated based on the RA response message from the terminal through the uplink resource information, and transmitting control response information with respect to the received control information.

Apparatus and method for random access in cellular system

Disclosed is a method for efficiently reporting measurement information required for handover in active-state terminals executing a power-saving operation in a packet-based communication system. The method includes the steps of: (a) receiving a discontinuous reception (DRX) period, a discontinuous transmission (DTX) period, and a measurement information report parameter that are decided by a base station; and (b) measuring channel quality according to a measurement information report period included in the measurement information report parameter, and reporting measurement information formed based on the measurement information report parameter by using radio resources allocated by the base station.

Method of reporting measurement information in packet based on cellular system

An apparatus and method for detecting synchronization and signals using block data processing in a receiving system are provided. To process an input signal, a cumulative matrix is obtained from an input vector signal for each frame generated from the signal. A primary eigenvector is extracted from the cumulative matrix, and the maximum value of a correlation vector is calculated from the extracted primary eigenvector. A time delay is detected by comparing the calculated maximum value of the correlation vector with a first threshold value, and a delay correlation vector is calculated from the detected time delay. Finally, synchronization and signals are detected by comparing the calculated delay correlation vector with a second threshold value.

Apparatus and method for detecting synchronization and signals using block data processing

A base station of a carrier aggregation system performs interference control of a first component carrier in which interference exceeds a threshold value among a plurality of component carriers based on an ABS pattern and changes the first component carrier to an available new component carrier, when interference of the first component carrier exceeds a threshold value after the interference control is performed.

Method and apparatus for controlling interference in carrier aggregation system

A cross carrier scheduling method is provided by a terminal. The terminal receives a control element including cross carrier scheduling configuration information from a base station, and sets a scheduling cell of a secondary cell in accordance with the cross carrier scheduling configuration information. The terminal starts to monitor scheduling information of the secondary cell at the scheduling cell from a time predefined between the base station and the terminal.

Cross carrier scheduling method and apparatus

An integrated base station which is a combination of a small cell base station and a wireless LAN access point is provided. The integrated base station includes: a small cell antenna that transmits and receives a small cell broadcast signal; a wireless LAN antenna that transmits and receives a wireless LAN signal; a small cell communication unit that broadcasts small cell broadcast information including wireless LAN access point information via the small cell antenna; and a wireless LAN communication unit that receives a wireless LAN report including a small cell camp-on report from a terminal that has received the small cell broadcast information, and passes the small cell camp-on report to the small cell communication unit.

Integrated base station and terminal

Growing community of inventors

Daejeon, South Korea

Byung-Han Ryu