Abstract: A method of transmitting data from a terminal in a cellular system is provided. The data transmission method includes: calculating the transmission capacity of a predetermined number of vectors among pairs of orthogonal vectors; selecting the vector having the largest transmission capacity as a reference vector among the predetermined number of vectors; and transmitting data to a base station using the reference vector.

Abstract: A communication quality visualization information providing system acquires a communication quality, generates communication quality visualization information by mapping the acquired communication quality information to geographic information, and provides corresponding communication quality visualization information according to a user request.

Abstract: A wireless local area network (WLAN) access point (AP) system is provided. The WLAN AP system includes a first virtual access point (VAP) that is logical entity performing communication with a first station (STA); and a second VAP performing communication with a second STA. The first VAP uses a first channel to exchange a frame with the first STA and the second VAP uses a second channel to exchange a frame with the second STA.

Abstract: Virtualization information on a first user terminal is generated and is stored in a data storage device through a mobile communication system. When a user with a second user terminal requests virtualization information while the second user terminal provides a first identification number of the first user terminal, the mobile communication system provides virtualization information corresponding to the identification number to the second user terminal. The second user terminal operates the virtualization information corresponding to the first identification number.

Abstract: A method of transmitting data from a terminal in a cellular system is provided. The data transmission method includes: calculating the transmission capacity of a predetermined number of vectors among pairs of orthogonal vectors; selecting the vector having the largest transmission capacity as a reference vector among the predetermined number of vectors; and transmitting data to a base station using the reference vector.

Abstract: An unmanned apparatus obtains position information and communication quality and traffic information while traveling, synchronizes the position information with the communication quality and traffic information, maps the communication quality and traffic information for each poison, synchronized with the position information, to geographical information, displays the geographical information on an electronic map, and sets a traveling path using the electronic map.

Abstract: A communication quality visualization information providing system acquires a communication quality, generates communication quality visualization information by mapping the acquired communication quality information to geographic information, and provides corresponding communication quality visualization information according to a user request.