Abstract: A method of a mobile station (MS) according to an exemplary of the present disclosure may comprise: receiving a first SSB including a PBCH from a first TRP; receiving an SIB1 based on an MIB included in the PBCH; receiving second system information based on the SIB1; and performing an RA procedure with the first TRP based on the second system information, wherein the second system information includes information on SSB group(s) and mapping information of an SSB group to which the first TRP belongs, and the information on the SSB group(s) includes information on an SSB index transmitted by TRP(s) belonging to each of the SSB group(s).

Abstract: A method by which a first communication node operates in a communication system comprises the steps of: generating a first sequence and a second sequence; generating a first signal sequence on the basis of the first sequence and the second sequence; and transmitting a first signal generated by modulating the first signal sequence, wherein even-numbered elements and odd numbered elements of the first signal sequence are classified into a first element group and a second element group, respectively, and any one of the first sequence and the second sequence can be mapped in ascending order in the first element group, and the other one thereof can be mapped in descending order in the second element group.

Abstract: A method of a terminal may comprise: receiving, from a first transmission and reception point (TRP) connected to the terminal, a message indicating terminal-based timing advance (TA) acquisition; receiving synchronization signal block(s) (SSB(s)) from one or more TRPs belonging to neighboring cell(s) according to the indication of the first TRP; determining a timing advance (TA) based on the SSB(s); transmitting information on the TA to the first TRP; receiving a cell switch command from the first TRP; and establishing a connection with a second TRP selected according to the cell switch command among the one or more TRPs belonging to the neighboring cell(s).

Abstract: Proposed is an apparatus and method for increasing the reach area of a random access preamble and uplink data signals in a wireless communication system. An operation method of a transmitter in a wireless communication system may include a process of generating sequences for generating a physical random preamble channel (PRACH) signal, a process of converting the sequences in a frequency domain, a process of dividing the converted sequences into frequency source blocks (RB), a process of allocating the frequency resource blocks to different spatial layers, and a process of transmitting the PRACH signal on the basis of the frequency resource blocks allocated to the spatial layers.

Abstract: Disclosed are a method and an apparatus for supporting high-speed mobility in a communication. A method of a terminal may comprise: estimating a first frequency offset based on a downlink transmission received from a base station; estimating first time-varying characteristic information based on the downlink transmission; and transmitting, to the base station, a first uplink transmission including time-varying characteristic feedback information based on the first time-varying characteristic information and a configured time-varying characteristic information feedback condition.

Abstract: A method of a first communication node may comprise: generating a first sequence that is a maximal length sequence having a length of 2n?1 for a positive integer n; generating a second sequence having a relationship of a preferred pair with the first sequence; generating a third sequence having a relationship of a preferred pair with the first sequence and the second sequence; and generating a binary sequence group using the first to third sequences.

Abstract: A method of a UE may comprise: receiving a first SSB search request message including SSB search options through a first TRP in a connected state with a BS through the first TRP connected below the BS; searching for a plurality of SSBs based on the SSB search options; and in response to presence of a beam transmitting at least one SSB having a received signal strength equal to or greater than a predetermined threshold as a result of the searching, transmitting, to the BS and through the first TRP, a first SSB search result report message including information on the at least one SSB having the received signal strength equal to or greater than the predetermined threshold.

Abstract: Disclosed are a method and an apparatus for supporting high-speed mobility in a communication. A method of a terminal may comprise: estimating a first frequency offset based on a downlink transmission received from a base station; estimating first time-varying characteristic information based on the downlink transmission; and transmitting, to the base station, a first uplink transmission including time-varying characteristic feedback information based on the first time-varying characteristic information and a configured time-varying characteristic information feedback condition.

Abstract: A memory device includes a fail test circuit configured to generate a fail flag indicating whether a failure was detected in a column line, on the basis of internal data outputted from the column line selected according to a column address, when performing a test, and control the fail flag to indicate that the failure was detected in the column line, on the basis of a fail control signal. The memory device also includes a repair information generation circuit configured to generate, from the column address, a repair column address for repairing the column line, on the basis of the fail flag.

Abstract: A semiconductor package includes a first memory device configured to output master data after the start of a training operation, and a second memory device configured to sample internal data based on the master data after the start of the training operation, configured to store test codes that adjust a time point at which the internal data are output when a time point at which the master data are output and the time point at which the internal data are output become identical with each other, and configured to program the stored test codes when the training operation is terminated.

Abstract: A foldable steering wheel is configured to be folded or unfolded due to linear movement and rotating movement of the steering wheel to secure an available space in a driver's seat, and the foldable steering wheel includes an armature body connected to a column, the steering wheel coupled to the armature body, configured to be linearly moved in a radial direction with respect to a steering shaft of the column, and configured to be rotatably moved on a rotation shaft which is unparallel to the steering shaft, and a moving device engaged to the steering wheel and configured to generate a linear movement path and a rotating movement path of the steering wheel to move the steering wheel with respect to the armature body.

Abstract: A foldable steering wheel is configured to be folded or unfolded due to linear movement and rotating movement of the steering wheel to secure an available space in a driver's seat, and the foldable steering wheel includes an armature body connected to a column, the steering wheel coupled to the armature body, configured to be linearly moved in a radial direction with respect to a steering shaft of the column, and configured to be rotatably moved on a rotation shaft which is unparallel to the steering shaft, and a moving device engaged to the steering wheel and configured to generate a linear movement path and a rotating movement path of the steering wheel to move the steering wheel with respect to the armature body.

Abstract: An operation method of a first communication apparatus may include: identifying one or more synchronization signal components constituting a synchronization signal component set; generating a plurality of synchronization signal sections based on the one or more synchronization signal components and a plurality of primary coefficients corresponding to the one or more synchronization signal components; generating one or more synchronization signal parts based on a combination of the plurality of synchronization signal sections; generating one or more synchronization signals based on a combination of the one or more synchronization signal parts in time domain; and transmitting the generated one or more synchronization signals.

Abstract: An operation method of a first communication node in a communication system may include: generating a base sequence; performing a quadrature phase shift keying (QPSK) operation on the base sequence; generating a first signal sequence by performing a rotational transform operation by a first angle on a complex plane with respect to a result of the QPSK operation; modulating the first signal sequence to generate first modulation symbols; and transmitting a first signal composed of the first modulation symbols to a second communication node, wherein each of a plurality of elements constituting the first signal sequence has a real value or a pure imaginary value.

Abstract: A memory device includes a fail test circuit configured to generate a fail flag indicating whether a failure was detected in a column line, on the basis of internal data outputted from the column line selected according to a column address, when performing a test, and control the fail flag to indicate that the failure was detected in the column line, on the basis of a fail control signal. The memory device also includes a repair information generation circuit configured to generate, from the column address, a repair column address for repairing the column line, on the basis of the fail flag.

Abstract: A timing adjustment method performed by a terminal may include: acquiring downlink synchronization with a base station; obtaining, from the base station, TA granularity-related information; transmitting, to the base station, a preamble and/or an SRS; receiving, from the base station, a TA command generated based on the preamble and/or SRS; determining a timing for uplink frame transmission by interpreting the TA command based on a TA granularity determined based on the TA granularity-related information; and performing the uplink frame transmission based on the determined timing.

Abstract: Disclosed is a method for moving a real object in a 3D augmented reality. The method may include: dividing a region of the real object in the 3D augmented reality; generating a 3D object model by using first information corresponding to the region of the real object; and moving the real object on the 3D augmented reality by using the 3D object model.

Abstract: The present disclosure relates to a mixed phenomena expressing method for expressing physical phenomena in a mixed reality and a mixed reality apparatus for performing the method. To be more specific, the physical phenomena expressing method configures a scene which may enhance a context or a realism to have the same level as the face-to-face situation using a scene configuration of the input image collected from the sensor to provide a service of a mixed reality and a physics/physical property analysis of a target object included in the input image.

Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

Abstract: An operation method of a terminal in a communication system may comprise: receiving, from a base station, information on a command period of a sub-frame, information on an action period of the sub-frame, and information on a report period of the sub-frame; receiving, from the base station, a command in the command period; performing an action according to the received command in the action period; and reporting, to the base station, a result according to the action in the report period.