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：KR20120067122A

公开(公告)日：2012-06-25

申请号：KR20100128567

申请日：2010-12-15

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM KEUN YOUNG ,  KIM HYUN JAE ,  LEE AN SEOK ,  LIM KWANG JAE ,  KWON DONG SEUNG

IPC: H04W72/08 ,  H04W4/06

CPC classification number: H04W72/08 ,  H04L12/189 ,  H04W4/06 ,  H04W72/005 ,  H04W84/18

Abstract: PURPOSE: A method for selecting receivers for data transmission in wireless network system is provided to select an object receiving data in consideration of the fairness and transmission efficiency of data transmission as data is transmitted by multicast or broadcast. CONSTITUTION: Candidate node sets including one or more node are generated from nodes located within a communication radius(S100). A channel signal to noise ratio for each node of candidate node sets is obtained. Each node is arranged based on the channel signal to noise ratio(S110). A transmission rate is obtained on each node of candidate node sets(S120).

Abstract translation: 目的：提供一种在无线网络系统中选择接收机进行数据传输的方法，以数据传输的公平性和传输效率，通过组播或广播传输数据，选择对象接收数据。 构成：从位于通信半径内的节点生成包括一个或多个节点的候选节点集（S100）。 获得候选节点集的每个节点的信道信噪比。 每个节点根据信道信噪比进行排列（S110）。 在候选节点集合的每个节点上获得传输速率（S120）。

公开(公告)号：KR20120071894A

公开(公告)日：2012-07-03

申请号：KR20100133621

申请日：2010-12-23

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM KEUN YOUNG ,  AHN DONG HYUN ,  SHIN WOO RAM ,  YEH CHOONG IL ,  KIM JI HYUNG ,  KWON DONG SEUNG

IPC: H04W74/08 ,  H04L1/16

CPC classification number: H04W74/0808 ,  H04L1/16 ,  H04L63/10 ,  H04W56/00 ,  H04W74/0816 ,  H04W74/0825 ,  H04W72/0446

Abstract: PURPOSE: A transmission and reception method in a mobile wireless network and apparatus thereof are provided to transmit and receive data by controlling the access of a terminal based on synchronization in the mobile wireless network. CONSTITUTION: A transmission node determines the size of transmission target data(S100,S110). The transmission node executes a basic access process(S120). In case an empty ACK(Acknowledgement) slot is not existed, the transmission node executes a random back-off process(S130,S140). In case one or more empty ACK slots are existed, the transmission node executes a data transmission process(S150).

Abstract translation: 目的：提供移动无线网络中的发送和接收方法及其装置，用于通过基于移动无线网络中的同步控制终端的接入来发送和接收数据。 构成：发送节点确定发送对象数据的大小（S100，S110）。 发送节点执行基本访问处理（S120）。 在空ACK（确认）时隙不存在的情况下，发送节点执行随机退避处理（S130，S140）。 在存在一个或多个空ACK时隙的情况下，发送节点执行数据发送处理（S150）。