Lg Electronics Inc.

Min Seok Oh

Ki Hyoung Cho

Young Seob Lee

Ji Wook Chung

Jae Hoon Chung

Jin Soo Choi

Sung Ho Moon

Seung Hyun Kang

So Yeon Kim

Doo Hyun Sung

Hyung Ho Park

Ji Ae Seok

Kyu Hyuk Chung

Kyu Jin Park

Bin Chul Ihm

Eun Jong Lee

Suk Woo Lee

Wook Bong Lee

Hyung Jin Park

Kyu-Hyuk Chung

Jinsoo Choi

Jin Young Chun

Sang Gook Kim

Doo Hyun Seong

Joon Kui Ahn

Seung Hee Han

Seunghee Han

Yeong Hyeon Kwon

Min Seok Noh

Jin Sam Kwak

Hyun Woo Lee

Dong Wook Roh

Han Gyu Cho

Sung Ho Cho

Young Cheul Yoon

Dong Kyu Kim

Beom Joon Kim

Jong Young Han

Song Chong

Ki Ho Nam

Seong Ho Moon

Jin-young Chun

Young Sub Lee

Hyang Won Lee

Young Seob 1151-901 Sinan Moran Apt Lee

Kyu Hyuk 203-606 Hyundai 2-Cha Apt Chung

Ki Hyoung 115-907 Saemmaeul Hanyang Apt Cho

A method of receiving control information in a wireless communication system includes receiving position information for searching at least one downlink control channel, a downlink control channel carrying control information of at least one user equipment, receiving multiplexed downlink control channel in which a plurality of downlink control channels are sequentially multiplexed and sequentially searching the downlink control channel on the multiplexed downlink control channel according to the position information. The number of detection attempts to detect its own control information can be reduced.

Method of transmitting and receiving control information in wireless communication system

A method of transmitting data using hybrid automatic repeat request (HARQ) is provided. The method includes transmitting an initial data, receiving a retransmission request for the initial data, generating a retransmission data by shifting the phase of the initial data on signal constellation and transmitting the retransmission data. Inter-cell interference or intra-cell interference can be mitigated.

Method of transmitting data to mitigate interference

A method of selecting a modulation and coding scheme (MCS) index in a wireless communication system is disclosed. More specifically, the method includes measuring a frequency selectivity of a receiving channel, selecting a MCS index having a coding rate below a prescribed coding rate threshold value if the measured frequency selectivity is greater than or equal to a specified frequency selectivity threshold, and selecting the MCS index having the coding rate above or equal to the prescribed coding rate threshold value if the measured frequency selectivity is less than the specified frequency selectivity threshold.

Method and apparatus for selecting modulation and coding scheme (MCS) index based on frequency selectivity

A method is described for transmitting signals in a mobile communication system which splits an information block into a plurality of split-information blocks and performs a hybrid automatic repeat request (HARQ) process upon each of the split-information blocks. A method is also described for reducing control information overhead by transmitting control information only through one control channel when splitting an information block and transmitting split-information blocks through a plurality of subframes or a plurality of resource blocks. The segmentation of the information block is performed in a physical layer to reduce medium access control (MAC) overhead and to simplify implementation.

MAC PDU splitting based on a subframe size with CRC added to the split unit

A closed-loop antenna switching method, a reference signal allocating method, and a feedback signal transmitting method for the same are disclosed. Namely, by transmitting a reference signal via the plurality of transmitting antennas via the antenna switching for reference signal transmission for each prescribed multiple period of an antenna selection period, efficient antenna index information can be fed back. By setting an antenna switching period to a prescribed multiple of an antenna selection period, it is able to prevent power loss and data decoding performance degradation. And, the present invention includes transmitting a sounding reference signal (SRS) for each band selection period via at least one of the plurality of transmitting antennas and transmitting at least one data demodulation reference signal (DMRS) between the band selection periods via an antenna for not transmitting data by reference signal transmission antenna switching.

Antenna switching for data transmission in a communication system using a plurality of transmission antennas

A method for encoding data using a parity check matrix is disclosed. The method for encoding data using a parity check matrix comprises generating a fourth base matrix by applying a row permutation pattern and a column permutation pattern to rows and columns of a third base matrix, respectively, the third base matrix including a plurality of indexes, each of the plurality of indexes indicating a sub-matrix; generating the parity check matrix by replacing each index of the fourth base matrix with a corresponding sub-matrix; outputting an encoded bit stream by encoding an input bit stream using the generated parity check matrix; and permuting an order of sequences of the encoded bit stream according to an inverse of the column permutation pattern.

Method of encoding data using a low density parity check code

The method includes generating coded bits by encoding information bits, dividing the coded bits into a first bit-stream and a second bit-stream, generating a first data symbol by performing anti-gray mapping on the first bit-stream, generating a second data symbol by performing gray mapping on the second bit-stream, and transmitting the first data symbol and the second data symbol.

Method of transmitting data in wireless communication system

A method for transmitting control information in a wireless communication system is provided. A codeword is generated by performing forward error correction (FEC) encoding on control information to generate. An interleaved code is generated by interleaving the codeword. A combined code is generated by combining the codeword and the interleaved code. A transport block is generated by repeating the combined code and is transmitted.

Method for transmitting control information in wireless communication system

An interleaver provision method for providing a continuous length, an interleaving method, and a turbo-encoder thereof are disclosed. The interleaving method selects a basic interleaver having a proper length from among the basic interleaver set, which is predetermined to have the length represented by a multiple of the ARP fluctuation vector period. The interleaving method performs the dummy insertion and the pruning process to have the length acting as the basic-interleaver length, so that it can provide the ARP interleaver having a continuous length.

Method for interleaving continuous length sequence

An adaptive resource partitioning method includes: selecting a predefined pattern-based partitioning method or an informed map-based partitioning method according to the number of channels used for resource allocation, data characteristics, and a channel environment variation, if the predefined pattern scheme is selected, selecting any of predefined patterns, partitioning distributed and localized resource allocation areas according to the selected pattern, and transmitting a pattern index of the selected pattern to a terminal, and if the informed map scheme is selected, partitioning distributed and localized resource allocation areas according to an arbitrary pattern, and transmitting bitmap control information indicating information of the partitioned areas to the terminal. So, it effectively obtains a diversity and a scheduling gain when distributed and localized resource allocations are simultaneously used, such that it increases flexibility of resource allocation, increases an available data transfer rate, and reduces an amount of necessary control information.

Method for resource partitioning with predefined pattern and adaptive resource partitioning method

A transmitter for reducing time selectivity and/or frequency selectivity in a wireless communication system includes a plurality of transmit antennas, a phase shifter which is disposed for each transmit antenna and is configured to shift a phase of data transmitted through the transmit antenna by a phase shift value, and a channel selectivity processor configured to obtain the phase shift value by using a channel phase value fed back from a receiver.

Transmitter for reducing channel selectivity

An apparatus for processing a received signal, method thereof, and mapping rule selecting method are disclosed, by which radio communications can be smoothly carried out in a receiving terminal () receiving signals via at least two antennas () in a manner of estimating data accurately. The present invention includes performing transmission according to an adaptively decided mapping rule and demapping on a symbol signal received via the plurality of antennas (), extracting reliability information for bit signal obtained from the demapping, and re-performing the demapping on the symbol signal received via the plurality of antennas () using the reliability information.

Apparatus for processing received signal, method thereof, and method for selecting mapping rule

A method for transmitting signals for achieving diversity gain is provided. In a communication system having multiple independent transmission paths, a signal is transmitted by mapping it to different independent transmission paths at initial transmission and at retransmission, thereby obtaining diversity gain. Especially, real and ideal components of a transmission signal are mapped to different transmission paths, thereby obtaining additional gain.

Method for transmitting signals for achieving diversity gain

Growing community of inventors

Anyang-si, South Korea

Min Seok Oh