Invention Grant
US08457150B2 Method and apparatus for notifying status of mobile node in a wireless local area network system using visible light communication
有权
用于在使用可见光通信的无线局域网系统中通知移动节点的状态的方法和装置
- Patent Title: Method and apparatus for notifying status of mobile node in a wireless local area network system using visible light communication
- Patent Title (中): 用于在使用可见光通信的无线局域网系统中通知移动节点的状态的方法和装置
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Application No.: US12175683Application Date: 2008-07-18
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Publication No.: US08457150B2Publication Date: 2013-06-04
- Inventor: Hong-Seok Shin , Dong-Ho Cho , Hyu-Dae Kim , Chi-Sung Bae , Soo-Yong Jeon , Woo-Chan Kim , Sung-Yeop Pyun
- Applicant: Hong-Seok Shin , Dong-Ho Cho , Hyu-Dae Kim , Chi-Sung Bae , Soo-Yong Jeon , Woo-Chan Kim , Sung-Yeop Pyun
- Applicant Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Yeongtong-gu, Suwon-si, Gyeonggi-do
- Agency: Cha & Reiter, LLC
- Priority: KR10-2007-0072791 20070720
- Main IPC: H04L12/43
- IPC: H04L12/43 ; H04W4/00
Abstract:
A method and apparatus for notifying status of an MN in a WLAN system using VLC are provided, in which an AP allocates a first predetermined number of time slots per frame as unallocated slots, for status notification of an initially accessing MN and allocates a second predetermined number of time slots per frame as reserved slots, for status notification of an initially accessing MN and uplink data transmission of an MN, and the MN transmits a visible light signal carrying status information about the MN in one of an unallocated slot and a reserved slot, if the MN initially accesses the AP.
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