公开(公告)号：KR101307766B1

公开(公告)日：2013-09-12

申请号：KR1020090127909

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 오상철 ,  이승규 ,  배형득 ,  김준식 ,  박남훈

IPC: H04W36/08 ,  H04W92/20

CPC classification number: H04W92/20 ,  H04W36/08

Abstract: 본 발명은 소스 기지국으로부터 타겟 기지국으로의 핸드오버에 있어서 X2 인터페이스에서 장애 상황이 발생하여 X2 인터페이스의 링크 레이턴시(latency)가 증가함에도 불구하고 X2 인터페이스를 통하여 핸드오버가 수행되어 핸드오버 수행시간이 증가되는 것을 방지하기 위하여, 핸드오버를 수행하기 전에 X2 인터페이스의 링크 레이턴시 및 S1 인터페이스의 링크 레이턴시를 비교하고, 비교의 결과에 기초하여 핸드오버를 수행할 인터페이스를 선택하는 방법 및 장치에 관한 것이다. 본 발명의 실시 예는, 소스 기지국과 타겟 기지국을 직접적으로 연결하는 직접 인터페이스의 존재 여부를 판단하는 단계, 직접 인터페이스가 존재하는 경우, 소스 기지국과 타겟 기지국을 간접적으로 연결하는 간접 인터페이스의 링크 레이턴시와 직접 인터페이스의 링크 레이턴시를 비교하는 단계, 및 비교의 결과에 기초하여 직접 인터페이스와 간접 인터페이스 중 핸드오버를 수행할 인터페이스를 선택하는 단계를 포함하는 핸드오버 제어 방법을 제공한다.
S1 인터페이스, X2 인터페이스, 링크 레이턴시, 핸드오버

公开(公告)号：KR1020130074901A

公开(公告)日：2013-07-05

申请号：KR1020110143001

申请日：2011-12-27

Applicant: 한국전자통신연구원

Inventor： 백승권 ,  김대호 ,  박남훈

IPC: H04B7/14 ,  H04W88/18

CPC classification number: H04B7/1851 ,  H04W24/02 ,  H04W48/08

Abstract: PURPOSE: A system for communication on the sea and a method thereof are provided to set a wireless link at a ship station on the sea using a seashore base station (BS) and a neighbor ship station to be provided with wireless internet services. CONSTITUTION: A communication unit (210) receives the setting information of seashore base stations and the setting information of ship stations on the sea. A database (220) stores and manages positional information on the sea. The positional information on the sea includes the setting information of the seashore base stations and the setting information of the ship stations on the sea. A control unit (230) controls a broadcasting unit (240) for periodically broadcasting the positional information on the sea through the broadcast base station on the sea. [Reference numerals] (110) Seashore located server; (120) Seashore base station; (210) Communication unit; (220) Database; (230) Control unit; (240) Broadcasting unit

Abstract translation: 目的：提供一种用于海上通信的系统及其方法，以使用海滨基站（BS）和相邻船舶站在海上的船舶站设置无线链路以提供无线因特网服务。 构成：通信单元（210）接收海滨基站的设定信息和海上船舶电台的设定信息。 数据库（220）存储和管理海上的位置信息。 海上的位置信息包括海滨基站的设置信息和海上船舶的设置信息。 控制单元（230）控制广播单元（240），用于通过海上的广播基站周期性地广播海上的位置信息。 （附图标记）（110）海上定位服务器; （120）海滨基站; （210）通讯单元; （220）数据库; （230）控制单元; （240）广播单位

公开(公告)号：KR1020130068245A

公开(公告)日：2013-06-26

申请号：KR1020110135216

申请日：2011-12-15

Applicant: 한국전자통신연구원

Inventor： 박순기 ,  유병한 ,  박남훈 ,  김준식 ,  오상철 ,  김홍숙 ,  김경숙 ,  박용직 ,  최성구

IPC: H04W36/08 ,  H04B7/02 ,  H04W92/20

CPC classification number: H04B7/024 ,  H04W36/18

Abstract: PURPOSE: A mobility management method using CoMP(Coordinated Multiple Point) communication is provided to offer a handover technology applied to the CoMP communication. CONSTITUTION: A source base station establishes communication with UE(User Equipment)(S212). The source base station transmits a CoMP additional request in a neighbor base station(S213). The source and neighbor base stations establish the UE and CoMP communication according to the CoMP additional request(S214). The source base station transmits an anchor cell conversion request to the base station. The neighbor base station is operated as the anchor cell of the CoMP communication according to the anchor cell conversion request. [Reference numerals] (AA) Source base station; (BB) Neighbor base station; (S211) Measurement; (S212) Measurement report; (S213) CoMP additional request; (S214) CoMP cell addition; (S215) CoMP addition response; (S216) RRC connection reconfiguration; (S217) RRC connection reconfiguration completion; (S218) Path additional request; (S219) Path additional response

Abstract translation: 目的：提供使用CoMP（协调多点）通信的移动性管理方法，以提供应用于CoMP通信的切换技术。 构成：源基站与UE（用户设备）建立通信（S212）。 源基站在邻近基站发送CoMP附加请求（S213）。 源和相邻基站根据CoMP附加请求建立UE和CoMP通信（S214）。 源基站向基站发送锚小区转换请求。 根据锚小区转换请求，邻居基站作为CoMP通信的锚小区运行。 （标号）（AA）源基站; （BB）邻居基站; （S211）测量; （S212）测量报告 （S213）CoMP附加请求; （S214）CoMP细胞添加; （S215）CoMP添加响应; （S216）RRC连接重配置; （S217）RRC连接重配置完成; （S218）路径附加请求; （S219）路径附加响应

公开(公告)号：KR1020130068049A

公开(公告)日：2013-06-25

申请号：KR1020110135207

申请日：2011-12-15

Applicant: 한국전자통신연구원

Inventor： 유환석 ,  유병한 ,  박남훈

IPC: H04W24/00 ,  H04W88/18

CPC classification number: H04W24/02

Abstract: PURPOSE: A small cell base station management system and a small cell base station management method thereof are provided to reconfigure the RAT(Radio Access Technology) of a small cell base station according to the request of a user terminal. CONSTITUTION: A small cell base station control DB(DataBase)(223) stores information for the RAT of a small cell base station. A processing unit(225) controls a communication unit and the small cell base station control DB. When a reconfiguration request is received from the communication unit, the processing unit updates the small cell base station control DB according to the reconfiguration request. The processing unit updates the information for the RAT of the selected small cell base station based on the reconfiguration request from the small cell base station control DB. [Reference numerals] (221) Communication unit; (223) Small cell base station control DB; (225) Processing unit

Abstract translation: 目的：提供小型基站管理系统及其小型基站管理方法，以便根据用户终端的请求重新配置小小区基站的RAT（无线接入技术）。 构成：小型基站控制DB（DataBase）（223）存储小型基站的RAT的信息。 处理单元（225）控制通信单元和小小区基站控制DB。 当从通信单元接收到重新配置请求时，处理单元根据重新配置请求更新小小区基站控制DB。 处理单元基于来自小小区基站控制DB的重新配置请求更新所选择的小区基站的RAT的信息。 （附图标记）（221）通信单元; （223）小型基站控制DB; （225）处理单元

公开(公告)号：KR1020130065285A

公开(公告)日：2013-06-19

申请号：KR1020110132078

申请日：2011-12-09

Applicant: 한국전자통신연구원

Inventor： 김준식 ,  조경탁 ,  유병한 ,  박남훈

IPC: H04W16/12 ,  H04W24/04 ,  H04W72/04

CPC classification number: H04W24/02 ,  H04W72/0486

Abstract: PURPOSE: A carrier wave assignment method is provided to reduce interference by assigning a carrier wave to a base station according to cell information including interference information. CONSTITUTION: An operation and maintenance system searches wireless resources of a wireless communication network and updates cell information indicating cells of a communication network(S110,S120). The operation and maintenance system searches an access mode of a connected base station(S130). The operation and maintenance system searches the wireless capacity of the base station(S140). The operation and maintenance system assigns a carrier wave to the base station according to the wireless capacity, the access mode, the cell information, and the wireless resources(S150). [Reference numerals] (AA) Start; (BB) End; (S110) Search wireless resources; (S120) Update cell information; (S130) Search the access mode of a new base station; (S140) Search the wireless capacity of the new base station; (S150) Assign a carrier wave according to the wireless resources, the cell information, the access mode of the new base station, and the wireless capacity of the new base station

Abstract translation: 目的：提供载波分配方法，通过根据包含干扰信息的小区信息向载波分配载波来减少干扰。 构成：操作和维护系统搜索无线通信网络的无线资源，并更新指示通信网络小区的小区信息（S110，S120）。 操作和维护系统搜索连接的基站的接入模式（S130）。 操作和维护系统搜索基站的无线容量（S140）。 操作和维护系统根据无线容量，接入模式，小区信息和无线资源向基站分配载波（S150）。 （附图标记）（AA）开始; （BB）结束; （S110）搜索无线资源; （S120）更新小区信息; （S130）搜索新基站的接入模式; （S140）搜索新基站的无线容量; （S150）根据无线资源，小区信息，新基站的接入模式以及新基站的无线容量分配载波

公开(公告)号：KR1020130064571A

公开(公告)日：2013-06-18

申请号：KR1020110131249

申请日：2011-12-08

Applicant: 한국전자통신연구원

Inventor： 이승규 ,  유병한 ,  박남훈

IPC: H04W64/00 ,  G01S5/02

CPC classification number: H04W64/003 ,  G01S5/02 ,  H04W4/02

Abstract: PURPOSE: A small cell base station in a small cell environment, a portable terminal, and a location information providing method thereof are provided to enable a user to effectively obtain the location information even if a user is not able to receive the signal of a GPS(Global Positioning System). CONSTITUTION: A location information acquisition unit(1000) acquires the location information of a small cell base station. A location information providing unit(1002) estimates the location of a portable terminal by using the location information of a small cell base station and by providing the location information of the small cell base station to the portable terminal. The location information providing unit provides the location information of the small cell base station to the portable terminal through a transmission and reception antenna related to the portable terminal. [Reference numerals] (100) Small cell base station; (1000) Location information acquisition unit; (1002) Location information providing unit; (102) Mobile terminal

Abstract translation: 目的：提供小型小区环境中的小型小区基站，便携式终端及其位置信息提供方法，以便即使用户不能接收到GPS的信号，用户也能够有效地获得位置信息 （全球定位系统）。 构成：位置信息取得部（1000）取得小型基站的位置信息。 位置信息提供单元（1002）通过使用小型小区基站的位置信息并通过向便携式终端提供小型小区基站的位置信息来估计便携式终端的位置。 位置信息提供单元通过与便携式终端相关的发送和接收天线向便携式终端提供小型小区基站的位置信息。 （附图标记）（100）小型基站; （1000）位置信息采集单元; （1002）位置信息提供单元; （102）移动终端

公开(公告)号：KR1020130063918A

公开(公告)日：2013-06-17

申请号：KR1020110130541

申请日：2011-12-07

Applicant: 한국전자통신연구원

Inventor： 오정훈 ,  조권도 ,  정재호 ,  박남훈 ,  정현규

IPC: H04B1/62

CPC classification number: H04B1/62 ,  H03F1/3241 ,  H03F3/245 ,  H03F2201/3233

Abstract: PURPOSE: A digital pre-distortion device and a method thereof are provided to simultaneously achieve high-linearity and high-efficiency. CONSTITUTION: A DPD(Digital Pre-Distortion) algorithm execution unit(120) calculates the maximum output value and average output value of an output signal for an input signal of a power amplifier during a predetermined period. The DPD algorithm execution unit obtains the reversed function of the output function based on a reference value between an average input value and a maximum input value. A pre-compensation device(110) distorts a source input signal by using information corresponding to the reversed function of the output signal. The pre-compensation device inputs the pre-distortion signal as an input signal of the power amplifier. [Reference numerals] (110) Pre-compensation device; (112) Look-up table; (120) DPD algorithm execution unit

Abstract translation: 目的：提供数字预失真装置及其方法，以同时实现高线性度和高效率。 构成：DPD（数字预失真）算法执行单元（120）在预定时段内计算功率放大器的输入信号的输出信号的最大输出值和平均输出值。 DPD算法执行单元基于平均输入值和最大输入值之间的参考值来获得输出函数的反转函数。 预补偿装置（110）通过使用与输出信号的反转功能相对应的信息来扭曲源输入信号。 预补偿装置输入预失真信号作为功率放大器的输入信号。 （附图标记）（110）预补偿装置; （112）查表; （120）DPD算法执行单元

公开(公告)号：KR1020130063626A

公开(公告)日：2013-06-17

申请号：KR1020110130070

申请日：2011-12-07

Applicant: 한국전자통신연구원

Inventor： 조은선 ,  유병한 ,  박남훈 ,  이찬용 ,  오현주 ,  김홍숙

IPC: H04W8/26

CPC classification number: H04W24/02 ,  H04W8/26 ,  H04W64/003 ,  H04W84/045

Abstract: PURPOSE: A physical layer identity assignment method of a femtocell base station is provided to set a PCI which is satisfied with a collision-free condition and a confusion-free condition in the femtocell base station. CONSTITUTION: A femtocell base station obtains current location information(S310). The femtocell base station transmits the current location information to an O&M(Operation & Maintenance) server(S320). The femtocell base station receives information related to one or more PCI based on the current location information from the O&M server(S340). The femtocell base station sets the PCI based on information related to the one or more PCI(S350). [Reference numerals] (AA) Femtocell base station; (BB) O & M server; (S310) Grasp the location information of a user; (S320) Transmit the location information of a femtocell base station; (S330) Execute a PCI allocation algorithm; (S340) Transmit femtocell base station setting information(including PCI); (S350) Set PCI

Abstract translation: 目的：提供毫微微小区基站的物理层身份分配方法，以在毫微微小区基站中设置满足无冲突条件和无混乱状态的PCI。 构成：毫微微小区基站获取当前位置信息（S310）。 毫微微小区基站将当前位置信息发送到运营和维护（Operation＆Maintenance）服务器（S320）。 毫微微小区基站基于来自O＆M服务器的当前位置信息来接收与一个或多个PCI相关的信息（S340）。 毫微微小区基站基于与一个或多个PCI相关的信息来设置PCI（S350）。 （附图标记）（AA）毫微微蜂窝基站; （BB）运维服务器; （S310）掌握用户的位置信息; （S320）发送毫微微小区基站的位置信息; （S330）执行PCI分配算法; （S340）发送毫微微小区基站设定信息（包括PCI）; （S350）设置PCI

公开(公告)号：KR101271213B1

公开(公告)日：2013-06-07

申请号：KR1020090079730

申请日：2009-08-27

Applicant: 한국전자통신연구원

Inventor： 이찬용 ,  박남훈

IPC: G06F9/06

Abstract: 본 발명은 휴대 단말기의 신규 디바이스 컴포넌트 관리장치 및 그 방법에 관한 것으로, 도메인 프로파일에 정의된 컴포넌트 관련 파일을 파일 디렉토리 구조로 배치하여 관리하고, 해당 도메인 시스템 운용 중 신규 다바이스로의 모드 변경 시 신규 디바이스에 대응하는 디바이스 컴포넌트 관련 파일을 상기 파일 디렉토리에 추가 배치하여 도메인 시스템 내 컴포넌트를 재구성하도록 한다. 본 발명에 따르면, 휴대 단말기의 도메인 시스템에서 관리하는 디바이스 컴포넌트를 추가할 경우, 도메인 시스템 운용 중에도 실시간으로 해당 디바이스 컴포넌트를 추가하는 것이 가능한 이점이 있다. 또한, 도메인 시스템 내의 모든 관리 컴포넌트를 재구성할 필요 없이 기존의 파일을 유지한 채 해당 디바이스 컴포넌트만을 추가하도록 함으로써, 시스템 자원을 효율적으로 운용할 수 있다.

公开(公告)号：KR1020130012206A

公开(公告)日：2013-02-01

申请号：KR1020110065156

申请日：2011-06-30

Applicant: 한국전자통신연구원

Inventor： 오현주 ,  김응배 ,  유병한 ,  박남훈 ,  김홍숙 ,  유환석

IPC: G06Q30/02 ,  H04W84/04 ,  H04W8/18

CPC classification number: G06Q30/0267 ,  G06Q30/0261 ,  G06Q30/0269 ,  H04W8/18 ,  H04W84/045

Abstract: PURPOSE: A customer management system with a femto cell and a method thereof are provided to automatically register a new customer by determining whether a customer with a mobile terminal is new or not when the mobile terminal enters a femto cell area. CONSTITUTION: A femto cell base station recognizes a mobile terminal of a customer entering a femto cell area. The femto cell base station transmits information about the recognized mobile terminal to a customer management server. When the customer of the mobile terminal is registered in response to the mobile terminal, the customer management server inquires into service information according to each customer. [Reference numerals] (AA) Start; (BB) Recognizing a mobile terminal which has entered a femto cell area; (CC) Is it a mobile terminal of a registered customer?; (D1,D2,D3,D4) Yes; (E1,E2,E3,E4) No; (FF) Requesting customer registration and customer information; (GG) Accepting the customer registration request?; (HH) Storing customer management DB terminal information and customer information; (II) Is it a mobile terminal of a customer corresponding to a preset group?; (JJ) Alarming a customer manager and inquiring optional service information; (KK) Storing visiting information in a customer management DB; (LL) Corresponding service information or optional service exists?; (MM) Transmitting the corresponding service information or optional service; (NN) End

Abstract translation: 目的：提供具有毫微微小区的客户管理系统及其方法，以便当移动终端进入毫微微小区区域时，通过确定具有移动终端的客户是新的还是新的来自动注册新客户。 构成：毫微微小区基站识别进入毫微微小区区域的客户的移动终端。 毫微微小区基站向客户管理服务器发送关于识别的移动终端的信息。 当移动终端的客户响应于移动终端注册时，客户管理服务器根据每个客户询问服务信息。 （附图标记）（AA）开始; （BB）识别已经进入毫微微小区区域的移动终端; （CC）是注册客户的移动终端吗？ （D1，D2，D3，D4）是; （E1，E2，E3，E4）否; （FF）要求客户注册和客户信息; （GG）接受客户注册申请？ （HH）存储客户管理DB终端信息和客户信息; （二）是否是与预设组对应的客户的移动终端？ （JJ）警告客户经理和查询可选服务信息; （KK）将访问信息存储在客户管理DB中; （LL）是否存在相应的服务信息或可选服务？ （MM）发送相应的服务信息或可选服务; （NN）结束