Samsung Electronics Co., Ltd.

Sungkyunkwan University

Jung-su Han

Hi-Chan Moon

Jun-Sung Lim

Seong-Woo Ahn

Joon-Young Cho

Jong-Min Lee

Jin-Ho Kim

Jin-ho Kim

Hyung-Jin Choi

Dong In Kim

Seong-Ho Kim

Inkyu Lee

Joo-Hyun Do

Hae-Chul Lee

Sung-won Park

Jae-Bum Cho

Seung-yup Lee

Seung-Ah Chae

Mi-Seong Jin

Seong-Hyeon Moon

Uk-hyeon Shin

Sang-un Oh

A method performed by at least one processor of a wireless communication apparatus including a plurality of internal components, the method includes generating a plurality of sets of noise information corresponding to a plurality of test noise signals generated by the plurality of internal components under a plurality of state conditions, receiving a radio frequency (RF) signal, determining a magnitude of a noise signal that interferes with the RF signal by using a set of noise information corresponding to a current state condition from among the plurality of sets of noise information, and performing noise filtering on the RF signal based on a magnitude of the RF signal and the magnitude of the noise signal.

Wireless communication apparatuses performing selective noise filtering and methods of operating the same

A method for receiving data over a plurality of carrier components at a Mobile Station (MS) is provided. The method includes receiving, from a Base Station (BS), resource allocation information including a first allocation information indicating at least one resource allocated to a first carrier component in a first subframe and a second allocation information indicating at least one resource allocated to a second carrier component in a second subframe and receiving data, from the BS, on the at least one resource of the first carrier component and on the at least one resource of the second carrier component based on the resource allocation information.

Method and apparatus for transmitting and receiving data over carrier component in a multi-carrier mobile communication system

A method for receiving control information by a User Equipment (UE) in a wireless communication system is provided. The method includes monitoring channel quality of a control channel, determining whether reconfiguration of the control channel is needed, based on the channel quality of the control channel, if the reconfiguration of the control channel is needed, requesting an evolved Node B (eNB) to reconfigure the control channel, and receiving the control information through the reconfigured control channel.

Method and apparatus for reconfiguring control channel in wireless communication system

An apparatus and method for transmitting/receiving a Channel State Information-Reference Symbol (CSI-RS) in a relay network system are provided. The method for transmitting a CSI-RS in a relay network system includes selecting a subframe to transmit a CSI-RS, from DownLink (DL) subframes, transmitting, to a receive end, identifying information indicating that a CSI-RS is transmitted at the selected subframe, and transmitting a CSI-RS at the selected subframe.

Apparatus and method for transmitting and receiving channel state information reference symbol in relay network system

An apparatus and a method for a cluster-based power control at a macro base station in a wireless communication system are provided. The method includes broadcasting an interference allowance value determined based on a predefined aggregate interference to a femto cell, updating the interference allowance value with consideration of a channel activity for each femto cell group on a cluster basis, and when detecting a change in an aggregate interference generated due to femto cell power allocation, repeating determination of an interference allowance value so that a Quality of Service (QoS) of a macro cell user is met, and broadcasting the interference allowance value to a femto cell.

Apparatus and method for cluster based opportunistic power control in wireless communication system

A method for feeding back Channel Quality Information (CQI) by a terminal in a Multi-User Multi-Input Multi-Output (MU-MIMO) communication system is provided. The method includes receiving a signal from a base station, determining a lower limit of an average Signal to Interference plus Noise Ratio (SINR) for the received signal, and determining the lower limit of an average SINR as CQI, and feeding back the CQI to the base station.

Method and apparatus for feeding back channel quality information in multi-user multi-input multi-output communication system

A method and apparatus for transmitting and receiving data in a multi-carrier mobile communication system are provided, in which a Mobile Station (MS) reports to a Base Station (BS) a number of Carrier Components (CCs) over which the MS can simultaneously receive data, receives from the BS monitoring CC set information indicating as many monitoring CCs as the reported number of CCs or fewer monitoring CCs than the reported number of CCs, and receives data based on the monitoring CCs indicated by the monitoring CC set information from the BS.

An apparatus and a method for transmitting and receiving control information in a Multiple Input Multiple Output (MIMO) system are provided. A method of a base station for transmitting control information to a terminal in the MIMO system includes transmitting first control information for every transmission mode except for a Multiple-User (MU)-MIMO mode, to the terminal over a control channel of a subframe, and transmitting second control information for the MU-MIMO mode to the terminal over a data channel of the subframe.

Apparatus and method for transmitting and receiving control information in multiple input multiple output system

In a method of estimating a signal-to-interference ratio (SIR), a first average channel power per slot of a first channel that is under a fading environment is estimated. A second average channel power per slot of a second channel that is under a fading environment substantially the same as the first channel is estimated, wherein the first and second channels are multiplexed. A second signal power attenuation ratio of the second channel is calculated using the second average power per slot of the second channel. A third average power per slot of the first channel is calculated using the first average power per slot of the first channel and a reciprocal of the second signal power attenuation ratio of the second channel.

Growing community of inventors

Yongin-si, South Korea

Jung-su Han