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    • 12. 发明授权
    • Repetition apparatus and method for repeatedly transmitting and receiving data packet using different puncturing patterns
    • 用于使用不同的打孔模式重复地发送和接收数据分组的重复装置和方法
    • US07995578B2
    • 2011-08-09
    • US12334043
    • 2008-12-12
    • Pansoo KimIn-Ki LeeDae-Ig ChangHo-Jin LeeNamshik KimBongseop SongHyuncheol Park
    • Pansoo KimIn-Ki LeeDae-Ig ChangHo-Jin LeeNamshik KimBongseop SongHyuncheol Park
    • H04J3/16
    • H04L1/0071H04L1/0013H04L1/0068H04L1/08
    • Provided are repetition apparatus and method for repeatedly transmitting and receiving a data packet using different puncturing patterns to overcome signal attenuation and fading in a high speed mobile environment by repeatedly transmitting the duplicated information bit sequences with parity bits having a different puncturing pattern after channel-encoding the duplicated information bit. The repetition apparatus for repeatedly transmitting a data packet, includes a dual data generator for generating duplicated information bit sequences identical to each of information bit sequences to transmit, a channel encoder for dividing each of the duplicated information bit sequences into a plurality of information bits, and generating coded data packets alternately having a plurality of parity bits according to different puncturing patterns for each of the divided information bits, and a transmitter for transmitting the generated coded data packets sequentially.
    • 提供了一种重复装置和方法,用于使用不同的打孔模式重复地发送和接收数据包,以通过在频道编码之后重复地发送具有不同打孔图案的奇偶校验位的复制信息比特序列来克服高速移动环境中的信号衰减和衰落 重复的信息位。 用于重复发送数据分组的重复装置包括:双数据产生器,用于产生与要发送的每个信息比特序列相同的重复信息比特序列,用于将每个复制信息比特序列分成多个信息比特的信道编码器, 以及根据用于每个分割的信息比特的不同的删截图案,交替地生成具有多个奇偶校验位的编码数据分组,以及发送器,用于顺序地发送所生成的编码数据分组。
    • 18. 发明授权
    • Apparatus for allocating resources in DAMA satellite communication system and method thereof
    • 用于在DAMA卫星通信系统中分配资源的装置及其方法
    • US07782823B2
    • 2010-08-24
    • US11305587
    • 2005-12-16
    • Ki-Dong LeeDeock-Gil OhHo-Jin Lee
    • Ki-Dong LeeDeock-Gil OhHo-Jin Lee
    • H04Q7/00
    • H04L41/0896H04W28/20
    • Provided are an apparatus for estimating an increment in the number of packets arriving at a transmission queue of each terminal and allocating resources to terminals based on the increment in a Demand Assignment Multiple Access (DAMA) satellite communication system, and a method thereof. The method, includes the steps of: a) comparing a summation of requested time slot quantities of terminals with a total number of available time slots; and b) allocating the time slots as much as the requested time slot quantity to each terminal and allocating remaining time slots additionally in proportion to an estimated increase in the number of packets arriving at a transmission queue of each terminal. The apparatus can raise efficiency of resources allocation in DAMA communications and reduce the packet transmission time in a terminal transmission queue.
    • 提供了一种用于估计到达每个终端的传输队列的分组数量的增量的装置,并且基于在请求分配多路访问(DAMA)卫星通信系统中的增量向终端分配资源及其方法。 该方法包括以下步骤:a)将所请求的终端时隙量的总和与可用时隙的总数进行比较; 以及b)将所请求的时隙数量的时隙分配给每个终端,并且分配剩余时隙,以与到达每个终端的传输队列的分组数量的估计增加成比例地分配剩余时隙。 该装置可以提高DAMA通信中资源分配的效率,并减少终端传输队列中的分组传输时间。