Abstract: A semiconductor device comprises a semiconductor chip which includes at least one gate structure on a substrate, the gate structure including a first region, a second region different from the first region, and a third region between the first and the second region, a first redistribution layer on a top surface of the semiconductor chip, the first redistribution layer configured to electrically connect a first electrode pad of the semiconductor chip to a first solder ball and overlap the first region of the gate structure, a second redistribution layer on the top surface of the semiconductor chip, the second redistribution layer configured to electrically connect a second electrode pad of the semiconductor chip to a second solder ball and overlap the second region of the gate structure such that the third region is exposed, and an insulating layer on the first redistribution layer and the second redistribution layer.

Abstract: A method and device for processing channel quality information in a communication system is provided. A preset sampling range is determined to estimate a channel quality of a sub-frame in a quality measurement mode. The sampling rate is calculated based on the interval between samples in the channels of the sampling range. The samples are detected in the channels according to the sampling rate. The channel quality information is measured in the samples. A receiving apparatus can maintain the cannels for measuring the channel quality information, i.e., the number of samples, in a certain range. The receiving apparatus can reduce the number of samples, thereby reducing the time required for measuring the channel quality information by a preset measurement time interval. The receiving apparatus can increase the number of samples, thereby raising the accuracy of the channel quality information.

Abstract: A method and apparatus are provided for performing a channel decoding operation based on effective noise in a mobile communication system. The method includes detecting effective noise including additive noise that occurs in a channel environment between the signal receiving apparatus and a signal transmitting apparatus and channel estimation noise that occurs during a channel estimating operation the signal receiving apparatus; generating a log likelihood ratio (LLR) based on the detected effective noise; and performing channel decoding based on the generated LLR.

Abstract: 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.

Abstract: An apparatus and method for power control are provided. In a receiver in a mobile communication system, a Receive (Rx) signal received through a plurality of antennas is estimated. A power ratio between a traffic channel of the Rx signal and a pilot channel of the Rx signal is determined. A Log Likelihood Ratio (LLR) value is determined using the power ratio between the traffic channel and the pilot channel, a symbol of the traffic channel, and an Rx signal estimation value to which precoding is applied.

Abstract: An apparatus and method for processing a valid bit operation in a wireless communication system are provided. The method includes analyzing input data and generating valid bit information representing a start position of valid bits, generating operation data comprised of the valid bits and valid bit information by eliminating extra bits from the input data, and, after performing an operation process using the generated operation data, restoring the operation data to data that is the same data as the input data.

Abstract: A method and apparatus for transmitting at least two transport blocks in a Multi-Input Multi-Output (MIMO) communication system, in which a transmitter determines whether a type of a receiver receiving the at least two transport blocks is a Successive Interference Cancellation (SIC) receiver, determines a Modulation and Coding Scheme (MCS) level for the at least two transport blocks depending on whether the type of the receiver is an SIC receiver, and transmits the at least two transport blocks using the determined MCS level.

Abstract: Provided is a transmitting/receiving apparatus and method for an IDMA system. The receiving apparatus includes a channel estimator, an estimator, and a determiner. The channel estimator estimates a channel using a multi-user signal received through at least one RX antenna. The estimator estimates the noise power and the signal power for each transmission layer of each user by using the estimated channel value from the channel estimator. The determiner determines the number of transmission layers for each user and an MCS level for each transmission layer by using the signal power and the noise power estimated by the estimator.

Abstract: The present invention relates to a temperature-sensitive carrier for carrying a physiologically active substance and a preparation method thereof. Specifically, the temperature-sensitive carrier according to the present invention comprises an amphiphilic biodegradable block copolymer containing polysaccharide or polysaccharide and succinic anhydride as a hydrophilic block and polylactide as a non-ionic block. A hydrophilic polymer-polylactide copolymer according to the present invention forms a stable complex with a physiologically active substance such as protein, polynucleotide and the like in vivo via ionic bonding and temperature-sensitive hydrophobic bonding. Therefore, a copolymer according to the present invention can facilitate in vivo delivery of a physiologically active substance and used as an in vivo drug delivery system.

Abstract: A technique for avoiding reception performance deterioration caused by a tone interference that occurs at a position carrying a pilot signal in a wireless communication system is provided. A receiving end includes an operator for converting a time-axis signal into a frequency-axis signal, an extractor for generating channel values in positions carrying pilot signals among the frequency-axis signals, a compensator for compensating for a channel value of a position at which tone interference occurs by using at least one channel value of a position at which no tone interference occurs among the channel values.

Abstract: A silicon contactor of which a side contacts test terminals of a semiconductor testing device and of which an other side contacts ball leads of a semiconductor device so as to be used in the semiconductor testing device, including: conductive silicon parts which are formed opposite to the ball leads and/or the test terminals and include silicon rubber and conductive powders; and an insulating silicon part which is formed by filling silicon rubber among areas of the conductive silicon parts, which do not contact the ball leads, and supports the conductive silicon parts, wherein the conductive powders of the conductive silicon parts include plate type powders. Therefore, the plate type powders are used as the conductive powders of the conductive silicon parts to improve contact characteristics between the conductive silicon parts and the semiconductor device.

Abstract: An apparatus and method for generating a Channel Quality Indicator (CQI) in a wireless communication system are provided. The method includes receiving a Modulation and Coding Scheme (MCS) index and resource allocation information of a traffic channel and calculating a spectral efficiency at a particular time point, determining a temporary CQI index having a spectral efficiency closest to the calculated spectral efficiency in an index set, reading a CQI metric a time ? before the particular time point, determining, if the temporary CQI index is reported at the particular time point, an error rate based on the CQI metric, the error rate being a probability of an error occurring in a traffic channel after the time ?, receiving an error check result of the traffic channel transmitted at the particular time point and calculating a new error rate by applying a weight to the error check result and the error rate, and determining a CQI index to be fed back to a transmitter using the new error rate.

Abstract: An apparatus and method for parallel symbol cancellation in a Multiple Input Multiple Output (MIMO) system supporting spatial multiplexing. The method includes selecting one of four quadrants representing all points on a constellation having normalization distribution, selecting a single reference point in the selected quadrant and generating a reference value corresponding to the single reference point, generating addition values for representing other points than the single reference point using a difference of a size of each of the points having the normalization distribution, and summing up the reference value and the addition values. The apparatus includes modules configured for performing the parallel symbol cancellation with reduced complexity.

Abstract: A silicon contactor of which a side contacts test terminals of a semiconductor testing device and of which an other side contacts ball leads of a semiconductor device so as to be used in the semiconductor testing device, including: conductive silicon parts which are formed opposite to the ball leads and/or the test terminals and include silicon rubber and conductive powders; and an insulating silicon part which is formed by filling silicon rubber among areas of the conductive silicon parts, which do not contact the ball leads, and supports the conductive silicon parts, wherein the conductive powders of the conductive silicon parts include plate type powders. Therefore, the plate type powders are used as the conductive powders of the conductive silicon parts to improve contact characteristics between the conductive silicon parts and the semiconductor device.

Abstract: An apparatus and method for reporting a Channel Quality Indicator (CQI) in a wireless communication system are provided. The method includes estimating a per-subband CQI with respect to each transport layer and generating a broadband CQI with respect to each transport layer according to the per-subband CQI, comparing the broadband CQI and the per-subband CQI with respect to each transport layer to determine a difference value thereof, determining an offset value to be used in a differential CQI, determining the differential CQI by subtracting the offset value from the determined difference value, and transmitting a transmission symbol by converting the determined differential CQI into the transmission symbol.

Abstract: A method and apparatus for transmitting at least two transport blocks in a Multi-Input Multi-Output (MIMO) communication system, in which a transmitter determines whether a type of a receiver receiving the at least two transport blocks is a Successive Interference Cancellation (SIC) receiver, determines a Modulation and Coding Scheme (MCS) level for the at least two transport blocks depending on whether the type of the receiver is an SIC receiver, and transmits the at least two transport blocks using the determined MCS level.

Abstract: A method and device for processing channel quality information in a communication system is provided. A preset sampling range is determined to estimate a channel quality of a sub-frame in a quality measurement mode. The sampling rate is calculated based on the interval between samples in the channels of the sampling range. The samples are detected in the channels according to the sampling rate. The channel quality information is measured in the samples. A receiving apparatus can maintain the cannels for measuring the channel quality information, i.e., the number of samples, in a certain range. The receiving apparatus can reduce the number of samples, thereby reducing the time required for measuring the channel quality information by a preset measurement time interval. The receiving apparatus can increase the number of samples, thereby raising the accuracy of the channel quality information.

Abstract: An apparatus and method for generating a Channel Quality Indicator (CQI) in a wireless communication system are provided. The method includes receiving a Modulation and Coding Scheme (MCS) index and resource allocation information of a traffic channel and calculating a spectral efficiency at a particular time point, determining a temporary CQI index having a spectral efficiency closest to the calculated spectral efficiency in an index set, reading a CQI metric a time ? before the particular time point, determining, if the temporary CQI index is reported at the particular time point, an error rate based on the CQI metric, the error rate being a probability of an error occurring in a traffic channel after the time ?, receiving an error check result of the traffic channel transmitted at the particular time point and calculating a new error rate by applying a weight to the error check result and the error rate, and determining a CQI index to be fed back to a transmitter using the new error rate.

Abstract: A method and apparatus for layer canceling in a multiple antenna system supporting space multiplexing are provided. The method includes determining a Log Likelihood Ratio (LLR) for each layer of signals received through a plurality of receive antennas and ordering each layer, and performing layer canceling using the ordering result.

Abstract: An apparatus and method for processing a valid bit operation in a wireless communication system are provided. The method includes analyzing input data and generating valid bit information representing a start position of valid bits, generating operation data comprised of the valid bits and valid bit information by eliminating extra bits from the input data, and, after performing an operation process using the generated operation data, restoring the operation data to data that is the same data as the input data.