Samsung Electronics Co., Ltd.

Qualcomm Incorporated

Korea Food Research Institute

Jin-Kyu Han

Hwan-Joon Kwon

Dong-Hee Kim

Ju-Ho Lee

Joon-Young Cho

Yu-Chul Kim

Jae-Chon Yu

Jianzhong Zhang

Youn-Sun Kim

Young-Han Nam

Young-Bum Kim

Aris Papasakellariou

Youn-Hyoung Heo

Hyoung-Ju Ji

Yeon-Ju Lim

Yong-Jun Kwak

Byung-Sik Kim

Dae-Gyun Kim

Kyeong-In Jeong

Ping Wang

Yun-Ok Cho

Gert Jan Van Lieshout

Soeng Hun Kim

Kyeong In Jeong

Jae Hyuk Jang

Hyun-woo Kim

Jung-Soo Jung

Youn Sun Kim

Farooq Khan

Jin Su Park

Joon Young Cho

Ju Ho Lee

Beom-Sik Bae

Young Bum Kim

Hyoung Ju Ji

Cheol Mun

Seung-Kyun Oh

Juho Lee

Zhouyue Pi

Boon Loong Ng

Sung Tae Kim

Krishna Kamal Sayana

Lingjia Liu

Jin-Weon Chang

Younsun Kim

Cornelius Van Rensburg

Cha-Won Koh

Han-Il Yu

Myung-Hoon Yeon

Eddy Kwon

Sung-Ho Choi

Jae-Hyun Park

Kyung-Joo Suh

Myung Hoon Yeon

Youn-Hyoung Huh

Hwan-Hoon Kwon

Yingyang Li

Hyojin Lee

Joonyoung Cho

Yujian Zhang

Soeng-hun Kim

Soeng-Hun Kim

Sung Hwan Won

Seung-Hoon Choi

Sang-Bum Kim

Yan E Wang

Ying Li

Peter Jung

Bruno Clerckx

Cheng Shan

Thomas David Novlan

Tobias Scholand

Youn-Joung Cho

Sang-Min Ro

Daegyun Kim

In-Ho Kim

Shan Cheng

Donghee Kim

Cheol-Hong Park

Clerckx Bruno

Achim Seebens

Yan Wang

Myunghoon Yeon

Aris Papsakellariou

Dong-Hoo Kim

Han-Kyu Park

Myoung-Won Lee

Hwan Joon Kwon

Aydin Sezgin

Anastasios Giovanidis

Dong-soo Kim

Min-Kyeong Kim, Legal Representative

Cha-won Ko

Jae-Young Sung

Young-Ho Jin

A base station and mobile station communicate using a multiple input multiple output (MIMO) communication. The base station includes a two dimensional (2D) antenna array comprising a number N of antenna elements configured in a 2D grid. The 2D antenna array is configured to communicate with at least one subscriber station. The base station also includes a controller configured to transmit N channel-state-information reference-signal (CSI-RS) antenna ports (APs) associated with each of the N antenna elements. The subscriber station includes an antenna array configured to communicate with at least one base station. The subscriber station also includes processing circuitry configured receives physical downlink shared channels (PDSCHs) from a 2D active antenna array at the at least one base station. The 2D active antenna array includes a number N antenna elements. The processing circuitry further configured to estimate a full CSI associated with the N antenna elements.

Apparatus and method for channel-state-information pilot design for an advanced wireless network

A method and apparatus report channel state information (CSI) feedback of a user equipment (UE) in a coordinated multipoint communication system. The method includes identifying, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The method also includes using the identified interference measurement resource to derive an interference measurement. The apparatus includes a controller configured to, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, identify an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The controller is configured to use the identified interference measurement resource to derive an interference measurement.

CSI definitions and feedback modes for coordinated multi-point transmission

A method and apparatus are provided for transmitting and receiving control information. A method in a base station includes transmitting, to a terminal, information associated with a resource region carrying a control channel; transmitting, to the terminal, a plurality of values associated with control channel candidates, each of the plurality of values corresponding to each of a plurality of numbers associated with CCEs constituting one control channel candidate, wherein the each of the plurality of values indicates a number of control channel candidates to be monitored by the terminal; determining a set of control channel candidates based on an ID of the terminal and at least one of the plurality of values associated with the control channel candidates; selecting at least one control channel candidate from among the set of control channel candidates; and transmitting the control information to the terminal through the at least one selected control channel candidate in the resource region.

Method and apparatus for transmitting and receiving control channels by restricting a set of the control channels in a wireless communication system

A Channel Status Information (CSI) transmission method and apparatus of a terminal are provided for use in a wireless communication system. In the wireless communication system supporting carrier aggregation, the terminal transmits the CSIs of component carriers without conflict of their transmission time points, resulting in an improvement of system performance. In a case where the transmission time points are determined to overlap unavoidably, the terminal transmits the CSI as compressed.

Method and apparatus for transmitting/receiving CSI in cellular communication system supporting carrier aggregation

A method for a user equipment (UE) to determine locations for M candidate physical downlink control channels (PDCCHs) in a set of N physical resource blocks (PRBs) in a transmission time interval (TTI) is provided. The method includes determining a location for each of M candidate PDCCHs in a different PRB if N is greater than or equal to M and determining a location for each of N candidate PDCCHs in a different PRB and determining a location for each of remaining M&#x2212;N candidate PDCCHs in a different PRB if M is greater than N and 2N is greater than or equal to M.

Search process for physical downlink control channels in a communication system

Methods and apparatuses are provided for transmitting and receiving control information. A method for transmitting control information, performed by a base station, includes transmitting, to a terminal, information associated with a resource region carrying a control channel; transmitting, to the terminal, by upper layer signaling, a plurality of values associated with control channel candidates, each of the plurality of values corresponding to each of a plurality of numbers associated with CCEs constituting one control channel candidate, wherein the each of the plurality of values indicates a number of control channel candidates to be monitored by the terminal; determining a set of control channel candidates based on an ID of the terminal and at least one of the plurality of values associated with the control channel candidates; selecting at least one control channel candidate from among the set of control channel candidates; and transmitting the control information to the terminal through the at least one selected control channel candidate in the resource region.

An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.

Apparatus and method for feeding back channel quality information and scheduling apparatus and method using the same in a wireless communication system

Methods and apparatuses are provided for receiving control information by a terminal. A control channel message is received on a control channel. Control information comprising a transmission rank and precoding matrix information is extracted from the control channel message if a common pilot is used for data demodulation. The control information comprising the transmission rank and information about a dedicated pilot is extracted from the control channel message if the dedicated pilot is used for the data demodulation.

Method and apparatus for managing control channel in a mobile communication system using multiple antennas

A method and apparatus are provided for transmitting and receiving control information in a wireless communication system. A method in a base station includes transmitting, to a terminal, information associated with a number of Control Channel Elements (CCEs) included in control channels; identifying a set of control channel candidates based on an IDentifier (ID) of the terminal and the information associated with the number of CCEs, wherein each control channel candidate includes one, two, four, or eight CCEs; selecting at least one control channel candidate from among the set of control channel candidates; and transmitting the control information to the terminal via the selected at least one control channel candidate.

Method and apparatus for transmitting and receiving control channels by restricting a set of the control channels in wireless communication system

Methods and apparatuses are described for wireless communication supporting carrier aggregation. The method includes monitoring, by a user equipment (UE), a downlink control channel in a first search space to receive first control information in the first search space; monitoring, by the UE, a downlink control channel in a second search space to receive second control information in the second search space; and receiving, by the UE, data on a first carrier based on the received first control information or on a second carrier based on the received second control information.

Transmission of scheduling assignments in multiple operating bandwidths

A method for a user equipment (UE) to determine locations for M candidate physical downlink control channels (PDCCHs) in a set of N physical resource blocks (PRBs) in a transmission time interval (TTI) is provided. The method includes determining a location for each of M candidate PDCCHs in a different PRB if N is greater than or equal to M and determining a location for each of N candidate PDCCHs in a different PRB and determining a location for each of remaining M-N candidate PDCCHs in a different PRB if M is greater than N and 2N is greater than or equal to M.

A method and apparatus are provided for transmitting and receiving control information in a wireless communication system. A method in a base station includes identifying an offset value and a number of control channel candidates corresponding to a number of control channel elements (CCEs) constituting one control channel candidate; determining indexes of control channel candidates based on the identified offset value and the identified number of control channel candidates; and transmitting the control information to the terminal through at least one of the control channel candidates in a downlink control channel. The determined indexes of control channel candidates are spaced by a value determined based on the transmitted number of control channel candidates.

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Seoul, South Korea

Jin-Kyu Han