Samsung Electronics Co., Ltd.

Young-seok Jung

In-hyoung Kim

Min-goo Kim

Jong-han Lim

Hui-won Je

Jin-ho Kim

Jun-ho Lee

Chae-Man Lim

Se-bin Im

Joon-sung Kim

Tae-Yoon Kim

Jeong Hun Kim

Yangsoo Kwon

Jong-hun Rhee

In-yup Kang

Seong-woo Ahn

Dong-Sik Kim

Ki-joon Hong

Hyun-seung Joo

Sung-Soo Kim

Sung-soo Kim

Sang Won Son

Hyun-seok Yu

Se-Bin Im

Sang-Woo Pae

Kwang-Man Ok

Joo-yeol Yang

Yong-sang Cho

Hyun-Suk Chun

Si-Woo Noh

Byung-Jik Son

A wireless communication method including receiving, through a wireless channel, table indication information indicating one of a first Modulation and Coding Scheme (MCS) table supporting up to 64 Quadrature Amplitude Modulation (QAM) and second and third MCS tables supporting up to 256 QAM, the third MCS table including a same number of MCS indices as the second MCS table and including less MCS indices corresponding to 256 QAM than the second MCS table, and identifying one of the first to third MCS tables according to the received table indication information to recognize a demodulation scheme for data to be received through the wireless channel may be provided.

Method and apparatus for wireless communication using modulation, coding schemes, and channel quality indicators

A device for performing wireless communication at least one processor configured to generate a condition signal based on at least one parameter associated with the device or the wireless communication, and select at least one of a plurality of signal processing algorithms for performing at least one of a plurality of signal processing functions based on the condition signal, each of the plurality of signal processing functions being associated with the wireless communication.

Devices and methods of selecting signal processing algorithm based on parameters

A wireless communication method using a plurality of antennas performed by a controller, the wireless communication method including obtaining a target transmission power level and beam forming information, determining at least one inactive antenna from among the plurality of antennas, based on the target transmission power level and the beam forming information, and controlling transmission signals provided to the plurality of antennas such that transmission via the at least one inactive antenna does not occur.

Methods and apparatuses for wireless communication using antenna array

An apparatus and a method for controlling power consumption of a terminal in a wireless communication system are provided. The method includes deactivating one or more of hardware components for signal reception in a transmission interval if there is no data to be received in the transmission interval, and receiving a control signal by activating all the components in a next transmission interval.

Apparatus and method for saving power by transmission interval in wireless communication system

Some example embodiments include methods of operating a wireless communication device supporting carrier aggregation, the methods include allocating a memory of a plurality of memories to each of a plurality of component carriers based on a memory allocation priority; determining a demodulation priority for each of the plurality of component carriers based on one of a size of each memory allocated to each of the plurality of component carriers, and the memory allocation priority; and demodulating signals received via the plurality of component carriers based on the demodulation priority.

Wireless communication device including memory de-allocator for efficient memory usage and method of operating the same

A receiver for receiving a signal including a plurality of symbols through a multiple input multiple output (MIMO) channel, and an operation method of the receiver are provided. The receiver includes a demodulator configured to calculate, for each physical channel, Euclidean distances of one or more of the received symbols with respect to all candidate vectors included in an initial candidate vector set and to output information about the Euclidean distances. A vector set detector may select, based on the information, one of a plurality of candidate vector sets having different sizes, as a subsequent candidate vector set for calculating a log likelihood ratio (LLR) of other symbols of the plurality of symbols or an LLR with respect to a second signal received following the first signal.

MIMO receiver that selects candidate vector set and operation method thereof

A chipset including at least one processor is provided. The at least one processor of the chipset is configured to acquire an interference whitening (IW) and detection scheme and demodulate an interference signal based on the acquired IW and detection scheme, wherein the IW and detection scheme is determined based on an interference characteristic of the interference signal, and the interference characteristic is determined based on whether a region in which the interference signal is included collides with a reference signal region of a serving cell and whether the interference signal is a reference signal.

Apparatus and method for mitigating interference in wireless communication system

Provided are a wireless communication apparatus and a channel estimation methods of the wireless communication apparatus. The channel estimation methods includes receiving a first sub-frame and a second sub-frame, the first sub-frame including a plurality of first reference signals pre-coded based on a first pre-coding matrix and the second sub-frame including a plurality of second reference signals pre-coded based on a second pre-coding matrix; determining whether the first pre-coding matrix and the second pre-coding matrix are the same, based on a channel variation in the time domain; and performing, in response to determining that the first pre-coding matrix and the second pre-coding matrix are the same, channel estimation with respect to a resource element included in the second sub-frame based on at least of the plurality of first reference signals and at least one of the plurality of second reference signals.

Wireless communication devices and channel estimation methods thereof

A chipset is provided. The chipset is configured to detect an interference characteristic of a neighbor cell corresponding to groups and perform an interference whitening operation based on the interference characteristic. The groups are generated by dividing a time interval occupied by a first reference signal region by dividing a frequency band occupied by the first reference signal region, or by dividing a time interval occupied by a second reference signal region. A frequency band occupied by the second reference signal region is wider than the frequency band occupied by the first reference signal region.

Provided is a data decoding method of a wireless communication device. The method includes receiving a plurality of sub-frames. The method further includes accumulating data signals respectively included in each of the plurality of sub-frames. The method further includes updating a channel estimation value based on reference signals included in a most recent sub-frame of the plurality of sub-frames. The method further includes calculating a log likelihood ratio (LLR) based on the accumulated data signals and the updated channel estimation value. Furthermore, the method includes decoding data based on the LLR.

Data decoding method and device in wireless communication system

Growing community of inventors

Suwon-si, South Korea

Young-seok Jung