Abstract: A method for transceiving, by a network, a signal through at least two streams in a wireless communication system, includes measuring a channel state for the at least two streams by using a reference signal, determining at least one stream pair including a transmission stream and a reception stream based on the measured channel state, initiating a direction of one or more streams of the at least one stream pair, and transceiving the signal based on the one or more streams of the at least one stream pair.

Abstract: A method is provided for determining, by a base station, a Virtual-Multiple-Input Multiple-Output (V-MIMO) cluster in a wireless communication system. The base station determines a transmission efficiency of a temporary cluster and selects one or more entry candidate nodes contained in the temporary cluster. The base station determines an entry transmission efficiency. The entry transmission efficiency is a transmission efficiency when the entry candidate node enters a V-MIMO unit cluster. The base station determines whether to make the entry candidate node enter the V-MIMO unit cluster by comparing the entry transmission efficiency with the transmission efficiency of the temporary cluster.

Abstract: A method for transceiving, by a network, a signal through at least two streams in a wireless communication system, includes measuring a channel state for the at least two streams by using a reference signal, determining at least one stream pair including a transmission stream and a reception stream based on the measured channel state, initiating a direction of one or more streams of the at least one stream pair, and transceiving the signal based on the one or more streams of the at least one stream pair.

Abstract: A method is provided for transceiving a signal through at least two data streams in a wireless communication system. A first base station measures a wireless channel state for a link with a second base station by using an orthogonal pilot signal. The first base station receives channel status information related to a link of a first mobile station from the first mobile station, channel status information related to a link of a second mobile station from the second mobile station, and channel status information related to a device-to-device (D2D) link from the second mobile station. The D2D link is a channel link between the mobile stations. The first base station exchanges the received channel status information with the second base station, the first mobile station and the second mobile station using a broadcast signal, and determines data stream directions of the first base station and the second base station.

Abstract: One embodiment of the present invention relates to a method for a first base station transmitting a signal in a wireless communication system, the method comprising the steps of: the first base station receiving channel information from a first terminal belonging to the first base station and a second terminal belonging to a second base station; and transmitting a signal for the first station to at least one terminal from among the first terminal and the second terminal by considering the channel information, wherein if the signal to interference plus noise ratio (SINR) according to the channel information is equal to or higher than a predetermined value, then the signal for the first base station is transmitted to the second signal.

Abstract: An embodiment of the present invention relates to a method for a terminal determining a virtual multiple input and output (V-MIMO) cluster in a wireless communication system, the method comprising the steps of: selecting one or more entry candidate nodes included in a temporary cluster; determining the transmission efficiency for the entrance of the entry candidate node; and determining whether or not the entry candidate node enters a V-MIMO unit cluster, on the basis of the determined transmission efficiency, wherein whether or not to allow entrance is determined by comparing the determined transmission efficiency and the transmission efficiency of the candidate node prior to the entry.

Abstract: One embodiment of the present invention relates to a method for a first base station transmitting a signal in a wireless communication system, the method comprising the steps of: the first base station receiving channel information from a first terminal belonging to the first base station and a second terminal belonging to a second base station; and transmitting a signal for the first station to at least one terminal from among the first terminal and the second terminal by considering the channel information, wherein if the signal to interference plus noise ratio (SINR) according to the channel information is equal to or higher than a predetermined value, then the signal for the first base station is transmitted to the second signal.

Abstract: Disclosed is a method for performing resource stream alignment (RSA) to be able communication through two data streams in a wireless communication system supporting multi cell, the method comprising: measuring wireless channel state between the first base station and the second base station receiving, by each base station, a channel status information related to a link of each mobile station from each mobile station, respectively; receiving, by the second base station, a channel status information related to a device-to-device (D2D) link from the second mobile station; exchanging channel status informationsreceived at each base station between the first base station and the second base station; and determining data stream directions of the first base station and the second base station based on the exchanged channel status informations.

Abstract: An apparatus for assembling a swash plate with pistons in a swash plate compressor of the present invention can automatically assemble the swash plate with double or single head pistons and shoes thereby improving workability and productivity. In the assembling apparatus, each of the pistons includes a swash plate-receiving section for receiving a pair of opposed shoes therein and having an insert groove for receiving the swash plate mounted on a rotational shaft and a piston body to be inserted into a cylinder bore of a cylinder block so that the swash plate is inserted into the insert grooves of the pistons. The assembling apparatus comprises a base plate, piston-loading means, piston-shifting means and rotating means.

Abstract: A piston assembling apparatus for a swash plate type compressor has a cylinder block-fixing means; vacuum absorbing means; absorbing angle-maintaining means capable of entering the cylinder bores from under the cylinder block and leaving out of the same; assembly-descending means, and elevating/descending for elevating the absorbing angle-maintaining means into the cylinder bores to contact the absorbing angle-maintaining face with a lower end of each of the pistons and for descending the absorbing angle-maintaining means at a rate substantially equal to a descending rate of the assembly-descending means at actuation of the assembly-descending means.

Abstract: Disclosed is a device and a method for bonding friction material of clutch pulley. The device and method for bonding friction material of clutch pulley can simplify bonding processes by bonding friction material to a clutch pulley of an electromagnetic clutch for a compressor with a liquid phase adhesive, and improve productivity and prevent bonding error of the friction material by automatically inspecting a coated condition of the liquid phase adhesive.

Abstract: An apparatus for assembling a swash plate with pistons in a swash plate compressor of the present invention can automatically assemble the swash plate with double or single head pistons and shoes thereby improving workability and productivity. In the assembling apparatus, each of the pistons includes a swash plate-receiving section for receiving a pair of opposed shoes therein and having an insert groove for receiving the swash plate mounted on a rotational shaft and a piston body to be inserted into a cylinder bore of a cylinder block so that the swash plate is inserted into the insert grooves of the pistons. The assembling apparatus comprises a base plate, piston-loading means, piston-shifting means and rotating means.

Abstract: Disclosed is a piston assembling apparatus in a swash plate type compressor. With the piston assembling apparatus of the invention, the operation of assembling the piston into the cylinder bore is automated to remarkably enhance efficiency and productivity of the assembling operation. Further, the invention enables the piston to be assembled without processing the piston body to enhance endurance and compressibility of the piston thereby ensuring reliability of the compressor.