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    • 62. 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。
        • 68. 发明授权
        • Apparatus and method for synchronizing channels in a W-CDMA communication system
        • 一种在W-CDMA通信系统中同步信道的装置和方法
        • US06741578B1
        • 2004-05-25
        • US09562381
        • 2000-05-01
        • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
        • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
        • H04J1300
        • H04B7/2668H04B1/7083H04W56/00
        • A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.
        • 用于CDMA通信系统的同步(同步)码通信设备。 基站同步码发送装置包括主同步码发射机和辅同步码发射机。 主同步码发射器用于在传输帧中的第一位置处产生并发送主同步码。 主同步码用于在帧的起始点获取同步,并且帧等于扩展码的一个周期。 次同步码发射器用于在帧中的第二位置处产生并发送次同步码。 辅助同步码分配给基站组,一组到一组。 移动台同步码接收装置包括主同步码采集决定器和基站组判定器。 主同步码获取决定器用于获取在帧中的第一位置处接收到的主同步码,然后在帧的起始点获取同步。 在获取主同步码后,启用基站组决定器,接收在帧中第二个位置发送的辅助同步码,然后确定发送基站所属的基站组。