Apparatus and method for generating scrambling code in UMTS mobile communication system
    71.
    发明授权
    Apparatus and method for generating scrambling code in UMTS mobile communication system 有权
    在UMTS移动通信系统中产生扰码的装置和方法

    公开(公告)号:US07362867B1

    公开(公告)日:2008-04-22

    申请号:US09611518

    申请日:2000-07-07

    IPC分类号: H04K1/00

    摘要: A scrambling code generating apparatus of a downlink transmitter in a UMTS mobile communication system, which uses one primary scrambling code for separation of base stations and multiple secondary scrambling codes for channel separation. The apparatus includes a first m-sequence generator for generating a first m-sequence and a second m-sequence generator for generating a second m-sequence. A first summer adds the first and second m-sequences to generate the primary scrambling code. A plurality of first masking sections each shift the first m-sequence, and a plurality of second masking sections corresponding to the respective first masking sections each shifts the second m-sequence. A plurality of second summers each adds one of the first shifted m-sequences with the second m-sequence corresponding to the first m-sequence. The output of the second summers thus generates the multiple secondary scrambling codes.

    摘要翻译: UMTS移动通信系统中的下行链路发射机的扰码产生装置,其使用一个主要扰码用于分离基站,以及多个辅助扰码用于信道分离。 该装置包括用于产生第一m序列的第一m序列发生器和用于产生第二m序列的第二m序列发生器。 第一个夏天添加了第一个和第二个m序列来生成主要扰码。 多个第一掩蔽部分各移动第一m序列,并且对应于各个第一掩蔽部分的多个第二掩蔽部分移动第二m序列。 多个第二加法器各自将第一移位m序列中的一个与对应于第一m序列的第二m序列相加。 因此,第二个加法器的输出产生多个次级扰码。

    Device and method for transmitting subframe in mobile communication system
    74.
    发明授权
    Device and method for transmitting subframe in mobile communication system 有权
    移动通信系统发送子帧的装置和方法

    公开(公告)号:US06516441B1

    公开(公告)日:2003-02-04

    申请号:US09388240

    申请日:1999-09-01

    IPC分类号: H03M1300

    摘要: A subframe data transmission device for a mobile communication system. A bit generator generates specific bits having a predetermined value. A bit inserter segments a received data bit stream into at least two subframes, and inserts the generated specific bits at locations where an error probability is higher in the respective subframes. A turbo coder codes the subframe data comprised of the data bit stream and the specific bits. The subframe is equal in size to an ARQ (Automatic Repeat Request) block, and the specific bits are inserted at a rear portion of the subframe. The bit inserter includes a delay for delaying the received data bit stream by the number of the specific bits to be inserted; and a selector for connecting, upon completion of receiving data bits for the subframe, the received data bits to the delay and applying an output of the bit generator to the turbo coder; and applying, when the specific bits are inserted, an output of the delay to the turbo coder.

    摘要翻译: 一种用于移动通信系统的子帧数据传输装置。 位产生器产生具有预定值的特定位。 一个插入器将接收的数据比特流分段成至少两个子帧,并且在各子帧中错误概率较高的位置处插入所生成的特定比特。 turbo编码器对由数据比特流和特定比特组成的子帧数据进行编码。 子帧的大小与ARQ(自动重传请求)块大小相等,特定比特插入子帧的后部。 位插入器包括用于将接收到的数据位流延迟待插入的特定位的数量的延迟; 以及选择器,用于在接收到所述子帧的数据位完成后将所接收的数据比特连接到所述延迟并将所述比特生成器的输出应用于所述turbo编码器; 并且当特定比特被插入时,向turbo编码器输出延迟的输出。