公开(公告)号：WO2009136753A3

公开(公告)日：2012-05-10

申请号：PCT/KR2009002422

申请日：2009-05-08

Applicant: KOREA ELECTRONICS TELECOMM ,  CHANG KAPSEOK ,  KIM YOUNG-HOON ,  KIM SEONG RAG ,  WON SEUCK HO ,  KIM KEUN YOUNG

Inventor： CHANG KAPSEOK ,  KIM YOUNG-HOON ,  KIM SEONG RAG ,  WON SEUCK HO ,  KIM KEUN YOUNG

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2657 ,  H04L27/2684

Abstract: Disclosed is an apparatus for obtaining symbol synchronization which is robust to a frequency offset in a cell search of a wireless communication system. The symbol synchronization obtaining apparatus may include a sequence generator to generate a base sequence for obtaining the symbol synchronization, a synchronization pattern generator to generate a modified sequence based on the base sequence, and to generate a synchronization pattern by combining the modified sequence and the base sequence, a frequency mapping unit to perform mapping of transmission information to a time area and a frequency area, based on the synchronization pattern, for generating a transmission frame, and a transmitting unit to transmit the transmission frame.

Abstract translation: 公开了一种用于获得对于无线通信系统的小区搜索中的频率偏移是鲁棒的符号同步的装置。 符号同步获取装置可以包括产生用于获得符号同步的基本序列的序列发生器，基于该基本序列生成修改序列的同步模式生成器，以及通过将修改的序列与基础组合来生成同步模式 序列，频率映射单元，用于基于所述同步模式来执行传输信息到时间区域和频率区域的映射，以产生传输帧;以及发送单元，用于发送所述传输帧。

公开(公告)号：KR20090064845A

公开(公告)日：2009-06-22

申请号：KR20070132202

申请日：2007-12-17

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM SEONG RAG ,  NAM JUN YOUNG ,  CHUNG HYUN KYU

IPC: H04L27/26 ,  H04B1/76 ,  H04B7/26

CPC classification number: H04L25/0204 ,  H04B7/0413 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0061 ,  H04L25/0228 ,  H04L25/0236 ,  H04L25/0242 ,  H04L25/03324 ,  H04L5/0007

Abstract: A repeat channel noise variation estimate device and a method for multiple input/output orthogonal frequency division system are provided to improve the function and lower the complexity. A repeat channel for multiple input/output orthogonal frequency division system comprises: a encoder, interleaving unit, mapping unit, pilot insertion unit, and transmission antenna. The encoder encodes transmission packet. The interleaving unit performs interleaving of encoded transmission packet. The mapping unit performs the mapping of the transmission packet. The pilot insertion unit inserts pilot symbol and information symbol.

Abstract translation: 提供重复信道噪声变化估计装置和多输入/输出正交分频系统的方法，以改善功能并降低复杂度。 用于多输入/输出正交分频系统的重复信道包括：编码器，交织单元，映射单元，导频插入单元和发射天线。 编码器对传输包进行编码。 交错单元执行编码的发送分组的交织。 映射单元执行发送分组的映射。 导频插入单元插入导频符号和信息符号。