Abstract:
Disclosed are a method and an apparatus for selecting a beamformee station while performing a sounding protocol in an MU-MIMO communication system. The method for selecting a beamformee station in an MU-MIMO comprises the steps of acquiring channel information on one of beamformee stations; analyzing a gain and a loss in according with acquirement of channel information on a beamformee station next to the selected beamformee station; and determining whether to acquire the channel information on the next beamformee station by using the analysis result. Additionally, the step of determining whether to acquire the channel information on the next beamformee station further includes a step of transmitting a sounding end frame to the next beamformee station in a case that the channel information on the next beamformee station is not acquired.
Abstract:
An apparatus and a system for providing an agent service based on lifelog data and a method thereof are disclosed. The apparatus for providing an agent service based on lifelog data according to the present invention includes: an input unit which receives, from a user, information according to a menu or key operation; a control unit which searches a service agent developed based on the lifelog data of the user through a dedicated program or a web browser activated according to the received information, and requests the execution of the searched service agent; a communication unit which receives an agent interface page according to the execution of the service agent; a display unit which displays the received agent interface page; and a storage unit which stores lifelog data collected from at least one sensing device.
Abstract:
Disclosed are an apparatus and a method for collecting lifelog data according to the present invention. The apparatus for collecting lifelog data comprises: an input unit which receives information for manipulating menus and keys from a user; a control unit which collects lifelog data of a first schema, which is measured by at least one sensing device, through an application which is activated according to the inputted information, and converts the collected lifelog data of a first schema to lifelog data of a predetermined second schema; a display unit which displays a result, which is obtained by analyzing user behavior based on the converted lifelog data of a second schema, through the application; astorage unit which stores the lifelog data of a first schema or the lifelog data of a second schema; and a communication unit which transmits the lifelog data of a first schema or the lifelog data of a second schema to a lifelog server which manages the lifelog data for respective users. The application processes data based on the lifelog data of a second schema.