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    • 71. 发明申请
    • Method of preventing replay attack in mobile IPv6
    • 防止移动IPv6重放攻击的方法
    • US20060259969A1
    • 2006-11-16
    • US11433680
    • 2006-05-12
    • Kyung-Joo SuhSoon-Young YoonYoung-Hoon KwonYong-Seok Kim
    • Kyung-Joo SuhSoon-Young YoonYoung-Hoon KwonYong-Seok Kim
    • G06F12/14
    • H04L63/1466H04L63/08H04W8/14H04W12/12H04W80/04
    • Disclosed is a method of preventing a replay attack during a handoff in a communication system using a Mobile IPv6 protocol. A mobile node creates a CoA (Care of Address) by handoff and sends the CoA to a correspondent node, thereby creating a binding entry. Upon receipt of a binding update message including a HoA and a CoA from the mobile node or an attacker, the correspondent node searches a binding cache for a binding entry having the same HoA (Home Address) and CoA as included in the binding update message. If it is determined that the binding entry has the same respective HoA and CoA as contained in the binding update message, the correspondent node checks a Used field of the binding entry. If it is determined that the Used field of the binding entry is equal to a predetermined value, the correspondent node sends a reauthentication command message to the mobile node.
    • 公开了一种防止在使用移动IPv6协议的通信系统中切换期间的重放攻击的方法。 移动节点通过切换创建CoA(转交地址),并将CoA发送到对端节点,从而创建绑定条目。 在从移动节点或攻击者接收到包括HoA和CoA的绑定更新消息时,通信节点在绑定缓存中搜索具有包含在绑定更新消息中的相同HoA(归属地址)和CoA的绑定条目。 如果确定绑定条目具有与绑定更新消息中包含的相同的HoA和CoA,则对端节点检查绑定条目的“已使用”字段。 如果确定绑定条目的Used字段等于预定值,则对端节点向移动节点发送重新认证命令消息。
    • 72. 发明授权
    • Encoding apparatus and method in CDMA communication system
    • CDMA通信系统中的编码装置和方法
    • US07065700B2
    • 2006-06-20
    • US09814311
    • 2001-03-21
    • Jae-Yoel KimHyun-Woo LeeSoon-Young YoonHee-Won KangHo-Kyu Choi
    • Jae-Yoel KimHyun-Woo LeeSoon-Young YoonHee-Won KangHo-Kyu Choi
    • H03M13/03
    • H04B1/707H04J13/10
    • There is provided an encoding apparatus and method in a CDMA communication system. To encode input information of a k-bit sequence and generate a codeword with length N>(2k−1), an encoder encodes the input information using an (r, k) simplex code and generates a sequence of code symbols of length r (r=2k−1), a repeater repeats the sequence of code symbols t times ( t = ⌊ N r ⌋ + 1 ) , and a puncturer performs puncturing A times (A=rt−N) on the t repeated code symbol sequences so that the resulting codes have length N. The punctured symbols are distributed uniformly across the repeated code symbol sequences or confined to the tth repeated code symbol sequence.
    • 提供了一种CDMA通信系统中的编码装置和方法。 为了对k位序列的输入信息进行编码并生成长度为N>(2≤K≤1)的码字,编码器使用(r,k)单码进行编码,并产生 长度为r(r = 2K-1)的码符号序列,中继器重复码元序列t次 t = N r + 1 对t个重复码符号序列进行A次打孔(A = rt-N),使得所得到的码具有长度N.穿孔符号均匀地分布在重复的码符号序列上或限于第t / 重复代码符号序列。
        • 78. 发明申请
        • Power control apparatus and method in a wireless communication system using scheduled packet data service channel
        • 一种使用调度分组数据业务信道的无线通信系统中的功率控制装置和方法
        • US20050026642A1
        • 2005-02-03
        • US10919897
        • 2004-08-17
        • Sung-Won LeeSoon-Young YoonSeung-Joo MaengWoo-June KimHong-Seong ChangHoon Chang
        • Sung-Won LeeSoon-Young YoonSeung-Joo MaengWoo-June KimHong-Seong ChangHoon Chang
        • H04B7/26H04B7/005H04L12/56H04W24/00H04W36/08H04W36/18H04W52/12H04W52/40H04W52/44H04W72/12H04B1/00H04Q7/20
        • H04W52/40H04W52/12H04W52/44
        • Disclosed is a method for handing-off a mobile station receiving packet data over a second channel from a first base station system (BSS) to a second BSS by a base station controller (BSC) in a system in which the mobile station communicates with the first BSS and the second BSS adjacent to the first BSS through a first channel for transmitting a control message, and the mobile station communicates with the first BSS through the second channel for transmitting the packet data. In the method the mobile station measures receiving strengths of pilot channels transmitted from the first BSS and the second BSS, and transmits the measured receiving strengths to the BSC through the first BSS and the second BSS. The first and second BSSs each calculate available transmission power allocable to the second channel and transmits the calculated available transmission power to the BSC. The BSC calculates a sum of the available transmission power and the measured receiving strength of the pilot channel from the first BSS and a sum of the available transmission power and the measured receiving strength of the pilot channel from the second BSS. The BSC transmits a handoff indication message to the second BSS, when the sum of the available transmission power and the measured receiving strength of the pilot channel from the second BSS is higher than the sum of the available transmission power and the measured receiving strength of the pilot channel from the first BSS.
        • 本发明公开了一种移动台通过基站控制器(BSC)在第二信道上从第一基站系统(BSS)向第二BSS接收分组数据的移动台的方法,所述系统中移动台与 第一BSS和通过用于发送控制消息的第一信道与第一BSS相邻的第二BSS,并且移动台通过第二信道与第一BSS进行通信,用于发送分组数据。 在该方法中,移动站测量从第一BSS和第二BSS发送的导频信道的接收强度,并通过第一BSS和第二BSS将测量的接收强度发送给BSC。 第一和第二BSS各自计算可分配给第二信道的可用传输功率,并将所计算的可用传输功率发送给BSC。 BSC计算来自第一BSS的可用发射功率和测量的导频信道的接收强度的总和以及来自第二BSS的导频信道的可用传输功率和测量的接收强度之和。 BSC向第二BSS发送切换指示消息,当可用发射功率和来自第二BSS的导频信道的测量接收强度之和高于可用发射功率和测量的接收强度之和时 来自第一BSS的导频信道。