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    • 1. 发明公开
    • 광대역 무선 통신 시스템에서 맵 채널 오버헤드를감소시키기 위한 장치 및 방법
    • 在宽带通信系统中减少地图信道覆盖的装置和方法
    • KR1020070063920A
    • 2007-06-20
    • KR1020050124278
    • 2005-12-16
    • 삼성전자주식회사서강대학교산학협력단
    • 강충구장영빈노정민임은택박동식조영권장재혁김일환
    • H04L27/26H04J9/00
    • H04W72/10
    • An apparatus and a method for reducing a map channel overhead in a broadband wireless communication system are provided to simplify a source request procedure by performing a direct random access through data and receiving a feedback about success with a bitmap. An apparatus for reducing a map channel overhead in a broadband wireless communication system includes a map channel(101), down/up data bursts, and an uplink control channel(107). The map channel(101) locates source allocation of downlink and uplink. The down/up data bursts consist of fixed assignment regions(103,109) and dynamic assignment regions(105,111). The dynamic assignment regions(105,111) are allocated to users having a fine channel condition. The fixed assignment regions(103,109) are allocated to the users having a bad channel condition or using a small size service such as VoIP(Voice over Internet Protocol). The uplink control channel(107) transmits information of a random access for ranging and source allocation, a channel information feedback, and a hybrid ARQ.
    • 提供了一种用于减少宽带无线通信系统中的地图信道开销的装置和方法,以通过执行通过数据的直接随机访问并且利用位图接收关于成功的反馈来简化源请求过程。 一种用于减少宽带无线通信系统中的地图信道开销的装置包括地图信道(101),下行/上行数据突发和上行链路控制信道(107)。 映射信道(101)定位下行链路和上行链路的源分配。 下行/上行数据突发包括固定分配区域(103,109)和动态分配区域(105,111)。 动态分配区域(105,111)被分配给具有精细信道条件的用户。 固定分配区域(103,109)被分配给具有不良信道条件或使用诸如VoIP(因特网协议语音)的小尺寸服务的用户。 上行链路控制信道(107)发送用于测距和源分配的随机接入信息,信道信息反馈和混合ARQ。
    • 5. 发明公开
    • 가시광 통신 방법 및 장치
    • 空值
    • KR1020110047937A
    • 2011-05-09
    • KR1020100004553
    • 2010-01-18
    • 삼성전자주식회사
    • 김도영원은태조영권배태한구선기손재승
    • H04B10/116
    • H04B10/116H04W16/28H04W72/048
    • PURPOSE: A visible communication method is provided to guarantee a terminal mobility in a time division visible light communication system. CONSTITUTION: A terminal receives a cell border alarming information from a base station through a light source while performing a VLC(Visible Light Communication)(1413). The terminal receives the allocation of a new time slot. The terminal maintains the VLC through the new time slot and the previously allocated time slot(1421). If the reception of the cell border alarming information is discontinued, the terminal returns the previously allocated time slot. The terminal performs visible light communication through the new time slot.
    • 目的:提供可视通信方法,以保证时分可见光通信系统中的终端移动性。 构成:终端在执行VLC(可见光通信)(1413)时通过光源从基站接收蜂窝区边界报警信息。 终端接收新时隙的分配。 终端通过新的时隙和先前分配的时隙维护VLC(1421)。 如果中断小区边界告警信息的接收,则终端返回先前分配的时隙。 终端通过新时隙执行可见光通信。