Abstract: Provided are a method and apparatus for transmitting and receiving multi-user control channels through a data channel region in a wireless communication system using multiple antennas. Further provided is a definition of a new search space for control channel candidates. In the transmitting method, a base station forms control channels for a plurality of user equipment each of which is composed of at least one resource block, performs a mapping for the control channels by dividing a space of the same transmission region in a data channel region of a sub-frame, and then multiplexes the control channels with data channels in the data channel region of the sub-frame and to transmit the multiplexed control channels.

Abstract: Provided are a photoresist composition and a method of manufacturing a semiconductor device using the same. The method of manufacturing a semiconductor device comprises forming a mask layer and a photoresist layer on a substrate, forming a photoresist pattern by patterning the photoresist layer, forming a mask pattern by patterning the mask layer through the photoresist pattern and forming a pattern by etching the substrate using the mask pattern, wherein the formation of the photoresist layer comprises forming the photoresist layer, using a photoresist composition comprising a polymer which includes a protecting group that causes decarboxylation by radical.

Abstract: A photoresist polymer comprising a first repeating unit including a halogen donor group and a second repeating unit including a protecting group connected by a sulfide bond.

Abstract: A method of forming a semiconductor device includes forming an etching layer on a substrate, forming a photoresist layer on the etching layer, forming an exposed area configured to define an unexposed area in the photoresist layer, forming a hardmask layer on the exposed area using a selective deposition process, partially removing the photoresist layer using the hardmask layer as an etch mask and forming a photoresist pattern, and etching the etching layer using the photoresist pattern as an etch mask and forming a fine pattern.

Abstract: 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.

Abstract: A photoresist composition includes a photoresist polymer including a repeating unit to which a silicon-containing leaving group is combined, a photo-fluorine generator including a sulfonium fluoride, and a solvent.

Abstract: Methods and apparatus are described for forming Control Channel Elements (CCEs) from Resource Element Groups (REGs) that are located in one or more Physical Resource Block (PRB) pairs from a set of PRB pairs, for determining a first symbol in a Transmission Time Interval (TTI) for a Physical Downlink Shared Channel (PDSCH), and for determining whether the PDSCH includes all PRB pairs indicated by a respective PDCCH scheduling the PDSCH.

Abstract: A method and apparatus are provided for transmitting control information in a base station for a wireless communication system. The method includes receiving, from a terminal, a channel quality indicator (CQI); determining at least one control channel element (CCE) for a physical downlink control channel (PDCCH) based on the received CQI and an identifier (ID) of the terminal; and transmitting, to the terminal, control information on the PDCCH including the determined at least one CCE. A number of the at least one CCE is determined based on the CQI.

Abstract: Methods and apparatus are provided for transmitting and receiving data in a wireless communication system. Resource allocation information is received and hopping-related information is identified. A resource for transmitting data is determined based on the resource allocation information and hopping-related information, and data is transmitted on the determined resource. A sub-band is determined from a plurality of sub-bands based on the first hopping parameter and a resource in the determined sub-band is determined based on the second hopping parameter.

Abstract: A method and apparatus for mapping/demapping a resource efficiently in a wireless communication system are provided. A resource mapping method of a transmitter in a wireless communication system includes precoding pairs of symbols, arranging the pairs of precoded symbols adjacently in a resource block, and transmitting the pairs of precoded symbols in the resource block.

Abstract: Methods and apparatus are provided for transmitting data in a communication system with a plurality of antennas. The transmitter generates a first pilot signal and a second pilot signal. Data, the first pilot signal, and the second pilot signal are transmitted over a wireless network. The first pilot signal is transmitted at a first position in a time domain in each transmission time interval of the data over each frequency in a frequency domain used to transmit the data, and the second pilot signal is transmitted at a second position known by the transmitter and a receiver in the time domain and the frequency domain of a transmission time interval.

Abstract: A method and apparatus are provided for transmitting Uplink Control Information (UCI) on a data channel in a multi-carrier wireless communication system. The method includes channel-coding a UCI with reference to a number of UCI bits available; dividing the channel coded UCI bits into a number of Physical Uplink Shared Channels (PUSCHs); and transmitting the UCI multiplexed with data on the individual PUSCHs.

Abstract: A transmission/reception method and apparatus for a mobile communication system supporting uplink MIMO is provided. In the transmission method, a User Equipment (UE) transmits two transport blocks according to a predetermined number of layers and respective precoding indices, an evolve Node B (eNB) transmits, when one of the transport blocks is lost, a negative acknowledgement for the lost transport block, and the UE sets a precoding index for the lost transport block to a predetermined value to retransmit the lost transport block while maintaining the number of layers.

Abstract: Example embodiments relate to a method of forming a photoresist pattern and a method of fabricating a semiconductor device using the same. The method of fabricating a semiconductor device comprises forming a mask layer on a substrate, forming a photoresist pattern on the mask layer, the photoresist pattern having pattern portions at a first height and recess portions, applying a first liquid onto the photoresist pattern, filling the recess portions with a pattern filler at a second height, the pattern filler having an higher etch rate than the etch rate of the pattern portions to the same etchant, removing the first liquid, etching the pattern filler after removing the first liquid, etching the mask layer via the photoresist pattern to form a mask pattern, and etching the substrate via the mask pattern to form a fine pattern.

Abstract: A method and base station in a wireless communication system are provided. The method includes transmitting, to a terminal, system information including information associated with a sub-frame configuration of multimedia broadcast multicast service single frequency network (MBSFN) sub-frames, identifying whether the transmission mode of the terminal is a first transmission mode or a second transmission mode, transmitting, to the terminal, dedicated message including configuration information of the identified transmission mode of the terminal, transmitting, to the terminal, control information in a physical downlink control channel (PDCCH) and data in a physical downlink shared channel (PDSCH) in a first sub-frame of the MBSFN sub-frames, if the terminal is configured in the first transmission mode, and transmitting, to the terminal, the control information in the PDCCH and the data in the PDSCH in a second sub-frame of a non-MBSFN sub-frames, if the terminal is configured in the second transmission mode.

Abstract: The present invention relates to a channel status information transmission/reception method and apparatus in a wireless communication system in which the transmission apparatus generates channel status informations for at least two transmission schemes by combining rank informations corresponding to the transmission schemes into combined rank information through analyzing an uplink channel, and transmits the channel status informations for the respective transmission schemes on uplink channel, the channel status information for one of the transmission schemes containing the combined rank information; the reception apparatus receives the channel status informations corresponding to at least two transmission schemes, the channel status information for one of the transmission schemes including combined rank information for the transmission schemes, schedules downlink channel according to the channel status information, and transmits signals on the downlink channel.

Abstract: Methods and apparatuses are provided for controlling an uplink transmission power in wireless communication system. Information is received indicating a reference downlink carrier among a plurality of downlink carriers for measuring a pathloss. The pathloss of the indicated reference downlink carrier is measured. A transmit power control (TPC) command is received. The uplink transmission power is determined based on the TPC command and the measured pathloss. Data is transmitted using the determined uplink transmission power.

Abstract: A photoresist polymer comprising a first repeating unit including a halogen donor group and a second repeating unit including a protecting group connected by a sulfide bond.

Abstract: A method is provided for determining reference signal positions in a frequency-time domain in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A plurality of sub-carriers are selected in one resource block according to a predetermined mother pattern for reference signal allocation. When a single resource block is assigned for transmission to a user, the reference signal positions are determined corresponding to the plurality of selected sub-carriers in the single resource block. When multiple resource blocks are assigned for transmission to a user, the reference signal positions are determined in the multiple resource blocks by reducing a number of the plurality of selected sub-carriers in the mother pattern for at least one of the multiple resource blocks.

Abstract: A control information transmission and reception method based on a spatial-multiplexing gain, are provided. The control information may be transmitted by obtaining the spatial-multiplexing gain using an E-PDCCH region, and thus, a transmission efficiency of the control information may be improved. The common control information used for decoding the E-PDCCH may be transmitted via a PDCCH, and thus, a base station supporting both a general terminal and an enhanced terminal may effectively transmit the control information. Information associated with an indicator indicating whether the E-PDCCH is to be used during a subsequent resource allocation period may be transmitted, and thus, whether decoding with respect to the E-PDCCH is to be performed during the subsequent allocation period may be determined.