TDM BASED CELL SEARCH METHOD FOR OFDM SYSTEM
    4.
    发明公开
    TDM BASED CELL SEARCH METHOD FOR OFDM SYSTEM 审中-公开
    AUF TDM基础ZELLENSUCHVERFAHRENFÜREIN OFDM系统

    公开(公告)号:EP2076980A1

    公开(公告)日:2009-07-08

    申请号:EP07833422.4

    申请日:2007-10-18

    IPC分类号: H04B7/26

    摘要: Provided are a sync channel of a forward link, a common pilot channel structure, and an initial cell search method and an adjacent cell search method for handover in a cellular system using orthogonal frequency division multiplexing (OFDM). A cell search method in an OFDM cellular system in which a primary sync channel and a secondary sync channel are configured based on time division multiplexing (TDM) includes acquiring sync block synchronization and a primary sync channel sequence number using a primary sync channel symbol included in a frame received by a terminal, detecting a boundary of the frame and a scrambling code group using the sync block and a secondary sync channel symbol included in the frame received by the terminal, and acquiring a scrambling code using the primary sync channel sequence number and the scrambling code group, thereby reducing cell search time with low complexity.

    摘要翻译: 提供了使用正交频分复用(OFDM)的蜂窝系统中的正向链路,公共导频信道结构和初始小区搜索方法以及用于切换的相邻小区搜索方法的同步信道。 在基于时分多路复用(TDM)配置主同步信道和辅同步信道的OFDM蜂窝系统中的小区搜索方法包括:使用包括在主同步信道符号中的主同步信道符号来获取同步块同步和主同步信道序列号 由终端接收的帧,检测帧的边界和使用同步块的扰码组和由终端接收的帧中包括的辅同步信道符号,以及使用主同步信道序列号获取扰码,并且 扰码组,从而以低复杂度减少小区搜索时间。