公开(公告)号：KR1020120019259A

公开(公告)日：2012-03-06

申请号：KR1020100082579

申请日：2010-08-25

Applicant: 한국과학기술원

Inventor： 한영남 ,  김동균 ,  김정찬 ,  김훈 ,  장갑석

IPC: H04J11/00

CPC classification number: H04W72/1231 ,  H04L27/2614 ,  H04L27/2646 ,  H04W72/121

Abstract: PURPOSE: A scheduling apparatus at an orthogonal frequency division multiple access system and a scheduling method thereof are provided to allocate a user of maximum channel quality to a subchannel block having a maximum channel quality difference by comparing channel quality differences at different subchannel blocks. CONSTITUTION: The whole numbers of subchannel blocks are set to be the same as that of users(S200). The selection reference value of the subchannel blocks is calculated(S202). An allocation subchannel block and the user are selected(S204). A process for determining whether allocation is performed or not is operated(S206,S210,S212). An allocation process is operated(S208,S214). An allocable subchannel block, subchannel block combination which is pre-allocated, and subchannel block combination which is not allocated according to a user are updated by reflecting a current allocation result(S216). An update procedure includes an allocable subchannel block range update process according to the user, an allocable subchannel block user updating process, and a verification process of unallocated subchannel block.

Abstract translation: 目的：提供一种正交频分多址系统的调度装置及其调度方法，通过比较不同子信道块的信道质量差异，对具有最大信道质量差的子信道块分配最大信道质量的用户。 构成：子通道块的总数设置为与用户数相同（S200）。 计算子信道块的选择基准值（S202）。 分配子信道块和用户被选择（S204）。 操作用于确定是否执行分配的处理（S206，S210，S212）。 操作分配处理（S208，S214）。 通过反映当前分配结果来更新预先分配的可分配子信道块，子信道块组合和未根据用户分配的子信道块组合（S216）。 更新过程包括根据用户的可分配子信道块范围更新过程，可分配子信道块用户更新过程和未分配子信道块的验证过程。

公开(公告)号：KR1020100031411A

公开(公告)日：2010-03-22

申请号：KR1020080090507

申请日：2008-09-12

Applicant: 한국과학기술원

Inventor： 오진영 ,  황진엽 ,  김정찬 ,  한영남

IPC: H04B7/14 ,  H04B7/26

CPC classification number: H04B7/2606 ,  H04W24/10

Abstract: PURPOSE: A device and a method for delivering channel information of a wireless relay network are provided to simultaneously obtain channel quality signals between a terminal and a repeater, thereby improving system throughput. CONSTITUTION: A channel estimation device(210) estimates a channel value between a terminal and a repeater. The channel estimation device converts the channel value into CQI(Channel Quality Information). A CQI estimation device(330) performs linear prediction. The CQI estimation device obtains channel quality information between the repeater and the terminal. The channel estimation device(340) estimates channel quality information between a base station and the repeater.

Abstract translation: 目的：提供一种用于传送无线中继网络信道信息的设备和方法，以同时获得终端与中继器之间的信道质量信号，从而提高系统吞吐量。 构成：信道估计装置（210）估计终端和中继器之间的信道值。 信道估计装置将信道值转换为CQI（信道质量信息）。 CQI估计装置（330）进行线性预测。 CQI估计装置获取中继器与终端之间的信道质量信息。 信道估计装置（340）估计基站与中继器之间的信道质量信息。

公开(公告)号：KR1020100020904A

公开(公告)日：2010-02-23

申请号：KR1020090070893

申请日：2009-07-31

Applicant: 한국과학기술원

Inventor： 김태훈 ,  한영남 ,  최용훈 ,  이덕훈 ,  한덕희

IPC: H04W36/14 ,  H04W48/18

CPC classification number: H04W36/245 ,  H04W36/04

Abstract: PURPOSE: A handover apparatus and a method on history information, program recorded computer-readable storage medium are provided to select a handover target network based on a history utility functions thereby reducing an unnecessary handover. CONSTITUTION: A connection time calculation part(110) calculates the last connection time of a present network. A history utility function calculation unit(120) calculates a history utility function value according to the last connection time. A system utility function calculation unit(130) calculates a system utility function value according to a network environment between candidate networks. A selection function calculation unit(140) calculates a selected function value about the candidate networks using the history and the system utility function value, and the last connection time. The second selecting unit(150) selects one candidate network as a handover target network by comparing the selected function value.

Abstract translation: 目的：提供切换装置和历史信息方法，程序记录的计算机可读存储介质，以便根据历史效用函数选择切换目标网络，从而减少不必要的切换。 构成：连接时间计算部（110）计算当前网络的最后连接时间。 历史效用函数计算单元（120）根据最后的连接时间计算历史效用函数值。 系统效用函数计算单元（130）根据候选网络之间的网络环境来计算系统效用函数值。 选择函数计算单元（140）使用历史和系统效用函数值以及最后的连接时间来计算关于候选网络的所选函数值。 第二选择单元（150）通过比较所选择的功能值来选择一个候选网络作为切换目标网络。