公开(公告)号：KR1020130029275A

公开(公告)日：2013-03-22

申请号：KR1020110092611

申请日：2011-09-14

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 성낙운 ,  이숙진 ,  정병진 ,  신승재 ,  윤현수

IPC: H04W36/04 ,  H04W36/30

CPC classification number: H04W36/04 ,  H04W36/08 ,  H04W36/32

Abstract: PURPOSE: A handover method in a wireless communication system and a device thereof are provided to control handover from a macro cell of a user terminal to a small cell through a network manager. CONSTITUTION: When a small cell base station signal received from a user terminal is satisfied with a handover determination condition, a handover determination unit(314) predicts cell system prediction time in a small cell. The handover determination unit determines that the user terminal is a temporary user of the small cell. When the temporary user is the determined user terminal, the handover determination unit maintains the connection with a macro cell. A handover execution unit(316) executes a handover process for the user terminal which is not determined as the temporary user. [Reference numerals] (312) Reception unit; (314) Handover determination unit; (316) Handover execution unit; (318) Reporting unit

Abstract translation: 目的：提供无线通信系统中的切换方法及其装置，以通过网络管理器控制从用户终端的宏小区到小小区的切换。 构成：当从用户终端接收到的小小区基站信号满足切换确定条件时，切换确定单元（314）预测小小区中的小区系统预测时间。 切换确定单元确定用户终端是小小区的临时用户。 当临时用户是所确定的用户终端时，切换确定单元保持与宏小区的连接。 切换执行单元（316）对未被确定为临时用户的用户终端执行切换处理。 （312）接收单元; （314）切换确定单元; （316）切换执行单元; （318）报告单位

公开(公告)号：KR1020120122765A

公开(公告)日：2012-11-07

申请号：KR1020110041113

申请日：2011-04-29

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 성낙운 ,  이숙진 ,  신승재 ,  윤현수

IPC: H04W36/04 ,  H04W36/26 ,  H04W36/30

CPC classification number: H04W24/00 ,  H04W36/04 ,  H04W36/08 ,  H04W36/32

Abstract: PURPOSE: A handover method in a wireless communication system, apparatus, and delay parameter determination method are provided to control handover between a small cell and a macro cell by adding a delay time condition to a handover determination algorithm. CONSTITUTION: When a handover determination condition is satisfied, a user terminal acquires the delay parameter of a small cell BS(Base Station)(S204,S206). The user terminal measures the strength of a signal received from a small cell base station. When the handover determination condition is satisfied, the user terminal calculates delay time(S216,S218). When the calculated delay time is bigger than the time of a delay parameter in the small cell, the user terminal transfers data to the small cell(S224,S228). [Reference numerals] (AA,CC,EE) No; (BB,DD,FF) Yes; (S202,S214) Receiving a signal delivered from a small cell base station; (S204,S216) Satisfying a hand over decision condition?; (S206) Acquiring a delay parameter; (S208) Producing a timer variable and recording the production time; (S210,S212) Waiting; (S218) Calculating a delay time; (S220) Determining as a temporary user; (S222) Deleting the timer variable, storing the production and deletion time of a timer; (S224) Delay time > Time of delay parameter; (S226) Deleting the timer variable, storing the production and deletion time; (S228) Starting hand over from a macro cell to a small cell

Abstract translation: 目的：提供无线通信系统中的切换方法，装置和延迟参数确定方法，通过向切换确定算法添加延迟时间条件来控制小小区与宏小区之间的切换。 构成：当满足切换确定条件时，用户终端获取小小区BS（基站）的延迟参数（S204，S206）。 用户终端测量从小小区基站接收的信号的强度。 当满足切换确定条件时，用户终端计算延迟时间（S216，S218）。 当计算出的延迟时间大于小单元中的延迟参数的时间时，用户终端向小单元传送数据（S224，S228）。 （附图标记）（AA，CC，EE）否; （BB，DD，FF）是; （S202，S214）接收从小小区基站发送的信号; （S204，S216）满足决策条件？ （S206）获取延迟参数; （S208）生成计时器变量并记录生产时间; （S210，S212）等待; （S218）计算延迟时间; （S220）确定为临时用户; （S222）删除定时器变量，存储定时器的生产和删除时间; （S224）延迟时间>延迟时间参数; （S226）删除定时器变量，存储生产和删除时间; （S228）从宏小区开始切换到小小区

公开(公告)号：KR1020150049422A

公开(公告)日：2015-05-08

申请号：KR1020130129988

申请日：2013-10-30

Applicant: 한국과학기술원

Inventor： 윤현수 ,  신용주 ,  신승재 ,  김민수

IPC: G06F21/72 ,  G06F21/60

Abstract: 본발명은자원여건이열악한모바일장비에서동작하여데이터처리에소요되는지연시간을최소화시키고에너지소모를줄일수 있는데이터의보호에필요한경량화암호방법을제공하기위한것으로서, (A) 모바일기기는난수발생에필요한시드(SEED)값을기기의 PIN 정보나파일의해시값등의고유한암호키(keystream)로설정하고, 상기설정된시드값을사용하여모바일기기에저장하고있는평서문파일을암호문파일로변경하는암호화과정을수행하는단계와, (B) 상기모바일기기는암호화과정에서사용된시드값및 비밀키를포함하는비밀정보를통신채널을통하여인터넷서비스제공자(Internet Service Provider)가제공하는서버로이동시키는단계와, (C) 상기비밀정보가안전하게서버로이동한후, 모바일기기에저장되어있는비밀정보를삭제하고암호화된파일만을보관하는단계와, (D) 모바일기기가분실되거나누군가에의해도난이발생되면, 모바일기기의분실또는도난정보를서버에전달되어분실또는도난된모바일기기를블랙리스트에입력되어설정되는단계와, (E) 모바일기기에암호화된 암호화파일에접근하는경우, 서버에서해당되는비밀정보를요청하고, 사용자인증및 상기블랙리스트확인인증후 해당비밀정보를수신하는단계와, (F) 상기서버로부터전달된비밀정보에포함되어있는시드값및 비밀키를사용하여모바일기기에저장하고있는암호문파일을평서문파일로변경하는복호과과정을수행하는단계를포함하여이루어지는데있다.

Abstract translation: 本发明涉及有限资源的移动设备中的安全编码方法。 本发明提供了一种保护数据所需的光编码方法，其能够通过在资源状况较差的移动装置中进行操作来减少能量消耗并最小化处理数据所消耗的延迟时间。 本发明包括以下步骤：执行将纯文本文件改变为编码文件的编码处理; 将秘密信息移动到互联网服务提供商提供的服务器; 仅存储编码文件; 在黑名单上输入丢失的移动设备; 接收秘密信息; 并执行解码处理以将编码的文件改变为粗略的文本文件。