METHOD AND APPARATUS FOR INDICATION STATUS OF MOBILE NODE IN WIRELESS LOCAL AREA NETWORK USING VISIBLE LIGHT COMMUNICATION

摘要

invention visible-light communication (Visible Light Communication) for using wireless (Wireless) LAN (LAN: Local Area Network) system in a mobile node (Mobile Node) in the state display method according to , the access point (Access Point) in each frame by each of the predetermined time slot (Time Slot) the initial connection state of the mobile node displays for unallocated slot assigned , and the preset time slot of the initial connection with the process of assigning a data transfer is possible hold the slot in the status of the mobile node and the uplink direction , the initial connection to the unallocated slots in the initial access slot interval or hold mobile node comprises the step of transmitting a visible light signal indicating the status information of the mobile node .