公开(公告)号：KR1020080022065A

公开(公告)日：2008-03-10

申请号：KR1020070089928

申请日：2007-09-05

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 박형근 ,  김일규 ,  고영조 ,  장갑석 ,  이효석 ,  김영훈 ,  방승찬

IPC: H04L7/06 ,  H04L27/26 ,  H04J11/00 ,  H04B7/26

CPC classification number: H04J11/0073 ,  H04J11/0076 ,  H04L7/0008 ,  H04L27/2656 ,  H04W56/001

Abstract: A structure of a synchronization channel in an OFDM(Orthogonal Frequency Division Multiplexing) cellular mobile communication system is provided to improve a frequency error tracking performance of a terminal by increasing the number of repetition patterns in a secondary synchronous channel signal. A frame is formed by using plural symbols. The frame is transmitted through a forward link. The frame includes a primary SCH(Synchronous Channel) and a secondary SCH which are classified according to a frequency in the symbol at the same time. A cell ID is specified by a pattern in a code number which is detected by using the main and secondary synchronous channels. The primary synchronous channels are allocated at predetermined intervals according to the frequency in the symbol. The secondary synchronous channel is allocated in the frequency in the non-allocated symbol, so that more secondary SCHs are allocated in the symbol than the main synchronous channels.

Abstract translation: 提供了OFDM（正交频分复用）蜂窝移动通信系统中的同步信道的结构，以通过增加辅同步信道信号中的重复模式的数量来改善终端的频率误差跟踪性能。 通过使用多个符号形成帧。 帧通过前向链路传输。 帧包括主SCH（同步信道）和辅SCH，它们根据符号中的频率被同时分类。 小区ID由通过使用主和辅同步信道检测到的码号中的模式指定。 根据符号中的频率，以预定间隔分配主同步信道。 次同步信道在未分配符号中以频率分配，使得在符号中比主同步信道更多的次SCH被分配。

公开(公告)号：KR1020080020472A

公开(公告)日：2008-03-05

申请号：KR1020070072179

申请日：2007-07-19

Applicant: 한국전자통신연구원

Inventor： 박형근 ,  김일규 ,  고영조 ,  장갑석 ,  이효석 ,  김영훈 ,  방승찬

IPC: H04J11/00 ,  H04L27/26

CPC classification number: H04L5/005 ,  H04B1/707 ,  H04B2001/70724

Abstract: A method and an apparatus for transmitting a downlink pilot signal in a mobile communication system are provided to enable a BS(Base Station) to change a scrambling code allocated to each sector and change an interference sector in each sub frame and randomize interference between the sectors, thereby preventing the continuous deterioration of channel estimation capability generated by the multiple path of the interference sector. A method for transmitting a downlink pilot signal in a mobile communication system comprises the following steps of: generating and transmitting a first downlink pilot signal corresponding to a first sector; generating and transmitting a second downlink pilot signal which corresponds to a second sector and is different from the first downlink pilot signal; and differently generating the first downlink pilot signal and the second downlink pilot signal in each sub frame.

Abstract translation: 提供一种用于在移动通信系统中发送下行链路导频信号的方法和装置，以使BS（基站）可以改变分配给每个扇区的扰频码，并改变每个子帧中的干扰扇区，并随机化两个扇区之间的干扰 ，从而防止由干扰扇区的多路径产生的信道估计能力的持续恶化。 一种用于在移动通信系统中发送下行链路导频信号的方法包括以下步骤：生成和发送对应于第一扇区的第一下行链路导频信号; 产生和发送对应于第二扇区并且不同于第一下行链路导频信号的第二下行链路导频信号; 并且在每个子帧中不同地生成第一下行链路导频信号和第二下行链路导频信号。

公开(公告)号：KR1020070107614A

公开(公告)日：2007-11-07

申请号：KR1020070042760

申请日：2007-05-02

Applicant: 한국전자통신연구원 ,  삼성전자주식회사

Inventor： 고영조 ,  김재흥 ,  김정임 ,  이경석 ,  김영훈 ,  방승찬 ,  김일규 ,  박형근 ,  장갑석 ,  이효석

IPC: H04L27/26 ,  H04B7/26 ,  H04L12/56 ,  H04L12/28

CPC classification number: H04L27/2601 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053

Abstract: A method for transmitting/receiving downlink scheduling information in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to reduce the quantity of scheduling information by using a resource block having a minimum resource block index, a maximum resource block index, or a channel with a high quality. A method for transmitting/receiving downlink scheduling information in an OFDMA system includes the steps for allocating at least one of resource blocks comprising downlink resources of the OFDMA system, to each terminal(S200); selecting the resource block for each terminal on the basis of the size of indexes of each allocated resource block(S210); generating scheduling information including terminal resource allocation information and terminal discrimination information, for each terminal(S220); and transmitting the scheduling information of the terminal to each terminal by using the selected resource block(S234).

Abstract translation: 提供了一种用于在OFDMA（正交频分多址）系统中发送/接收下行链路调度信息的方法，通过使用具有最小资源块索引，最大资源块索引或信道的资源块来减少调度信息的数量 具有高品质。 在OFDMA系统中发送/接收下行链路调度信息的方法包括：向每个终端分配包括OFDMA系统的下行资源的资源块中的至少一个的步骤（S200）。 基于每个分配的资源块的索引的大小来选择每个终端的资源块（S210）; 为每个终端产生包括终端资源分配信息和终端识别信息的调度信息（S220）; 以及通过使用所选择的资源块将终端的调度信息发送给每个终端（S234）。