Abstract: A method and user equipment (UE) for performing device-to-device (D2D) communication in a wireless communication system is disclosed. The method of performing D2D communication by a D2D UE includes informing a mobility management entity (MME) about a first identifier (ID) of a target UE of D2D communication, receiving information regarding a second ID and a D2D peer discovery section, corresponding to the target UE, determining whether D2D communication with the target UE is possible using the received information, requesting the D2D communication with the target UE to the MME when the D2D communication with the target UE is possible, and receiving a D2D link ID allocated to the D2D link with the target UE from a base station (BS) receiving approval of communication of the MME.

Abstract: A material position information measuring section measures a position of a material lifted up by a tower crane. A structure information measuring section measures position information about surrounding structures. A route searching section searches for a route of movement of the material from a start point to a destination. The route of movement determined by the route searching section is stored in a route storage. A data processor receives data of the material position information measuring section and the structure information measuring section, and calculates 2D or 3D image data about relative positions of the tower crane, the material lifted up by the tower crane and the surrounding structures. A display unit displays information about at least one of the tower crane, the material and the surrounding structures using the image data calculated by the data processor, and displays the route of movement determined by the route searching section.

Abstract: The method of winding superconducting wire comprises a winding method comprising: winding the superconducting wire from the source reel onto the first lane of the first bobbin a first number of times in a first direction; fixing the first bobbin and the second bobbin to each other; winding the superconducting wire from the source reel onto the third lane of the second bobbin a second number of times in the first direction; separating the first bobbin and the second bobbin from each other; and winding the superconducting wire from the first lane of the first bobbin onto the fourth lane of the second bobbin a third number of times in a second direction which is different from the first direction while winding the superconducting wire from the third lane of the second bobbin onto the source reel the third number of times in the second direction.

Abstract: Handover apparatus and method using a Relay Node (RN) in a cellular system are provided. The handover method includes receiving, at an RN, broadcast control information of a serving Base Station (BS) and a neighbor BS; network-encoding and broadcasting, at the RN, the received broadcast control information; receiving and storing, at a Mobile Station (MS), the broadcast control information of the serving BS; receiving, at the MS, the network-encoded information from the RN when the MS enters a cell overlapping area; and acquiring, at the MS, the broadcast control information of the neighbor BS by decoding the received network-encoded information with the broadcast control information of the serving BS.

Abstract: A method for transmitting a signal in a wireless communication system. The method comprises the steps of: grouping two subcarriers having different channel characteristics; identifying a number of all cases occurring when either equal symbols or different symbols, among symbols determined upon applying a first modulation scheme, are mapped to the two subcarriers; and mapping two subcarriers corresponding to each of the number of all cases to one symbol according to a second modulation scheme, and transmitting the signal, wherein a modulation order of the second modulation scheme is two times higher than a modulation order of the second modulation.