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公开(公告)号：KR1020120049646A
公开(公告)日：2012-05-17
申请号：KR1020100111011
申请日：2010-11-09
Applicant: 한국전자통신연구원
CPC classification number: H04L27/265 , H04L27/0008 , H04L27/0012 , H04L27/22 , H04L27/38
Abstract: PURPOSE: A receiving apparatus for providing bits of an OFDM(Orthogonal Frequency Division Multiplexing) signal for input bits of a fast Fourier transformer depending on a modulation method and a method thereof are provided to determine an adaptive FFT(Fast Fourier Transform) input bit number by detecting the change of the number of minimum input bits of a FFT engine depending on a modulation method. CONSTITUTION: A modulation method determining unit(400) determines a modulation method for an OFDM(Orthogonal Frequency Division Multiplexing) signal received in an OFDM system. An input bit determination unit(410) provides high 7 bits of the OFDM signal for input bits of a fast Fourier transformer in case of a QPSK(Quadrature Phase Shift Keying) signal. The input bit determination unit provides high 8 bits of the OFDM signal for the input bit of the fast Fourier transformer in case of a 16 QAM(Quadrature Amplitude Modulation) signal. A modulation method determining unit changes received OFDM signals into digital signals. The modulation method determining unit determines a modulation method for signals from which CP(Cyclic Prefix) is removed.
Abstract translation: 目的：提供一种用于根据调制方法及其方法提供用于快速傅立叶变换器的输入比特的OFDM（正交频分复用）信号的比特的接收装置，以确定自适应FFT（快速傅里叶变换）输入比特数 通过根据调制方法检测FFT引擎的最小输入位数的变化。 构成：调制方法确定单元（400）确定在OFDM系统中接收的OFDM（正交频分复用）信号的调制方法。 在QPSK（正交相移键控）信号的情况下，输入比特确定单元（410）为快速傅里叶变换器的输入比特提供高的7比特的OFDM信号。 在16QAM（正交幅度调制）信号的情况下，输入比特确定单元为快速傅立叶变换器的输入比特提供高8位的OFDM信号。 调制方法确定单元将接收到的OFDM信号改变为数字信号。 调制方法确定单元确定去除CP（循环前缀）的信号的调制方法。
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公开(公告)号：KR101512815B1
公开(公告)日：2015-04-17
申请号：KR1020100132430
申请日：2010-12-22
Applicant: 한국전자통신연구원
IPC: H04B7/26 , H04W36/18 , H04N21/6405 , H04W4/06
Abstract: 본 발명은 모바일 IPTV서비스를 제공하는 MBS영역 설정에서 효율적인 MBS 영역 관리로 MBS 영역간 사용자 이동으로 인한 MBS 핸드오브를 발생시켜 사용자들에게 핸드오브 지연에 따른 불필요한 서비스 품질저하를 방지한다.
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公开(公告)号：KR1020130068572A
公开(公告)日：2013-06-26
申请号：KR1020110135855
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04N5/46 , H04N5/50 , H04N21/2541
Abstract: PURPOSE: A multifunctional broadcasting service reception device and a method thereof are provided to receive a service according to necessity of a user through an external broadcasting communication network tuner embedded in a multifunctional broadcasting service reception device and to distribute the service to a desired type of a terminal. CONSTITUTION: A pre-processing unit(20) embeds a tuner receiving two or more broadcasting services and converts the received broadcasting service signal into a digital signal. A digital media processing unit(30) decodes and outputs the digital signal outputted from the pre-processing unit. An audio/video output unit(40) outputs the signal which is outputted from the digital media processing unit to the outside. [Reference numerals] (20) Pre-processing unit; (30) Digital media processing unit; (40) Audio/video output unit; (50) Display unit; (60) Service distribution unit; (70) Smartcard access unit; (80) Interface unit; (AA) IPTV broadcast; (BB) Cable broadcast; (CC) Satellite broadcast; (DD) Groundwave broadcast; (EE) Image output; (FF) Sound input/output
Abstract translation: 目的：提供一种多功能广播业务接收装置及其方法，用于通过嵌入在多功能广播业务接收装置中的外部广播通信网络调谐器根据用户的需要接收业务，并将业务分配到期望类型的 终奌站。 构成：预处理单元（20）嵌入接收两个或多个广播服务的调谐器，并将接收到的广播服务信号转换为数字信号。 数字媒体处理单元（30）解码并输出从预处理单元输出的数字信号。 音频/视频输出单元（40）将从数字媒体处理单元输出的信号输出到外部。 （附图标记）（20）预处理单元; （30）数字媒体处理单元; （40）音频/视频输出单元; （50）显示单元; （60）服务分配单位; （70）智能卡存取单元; （80）接口单元; （AA）IPTV广播; （BB）有线广播; （CC）卫星广播; （DD）地面波广播; （EE）图像输出; （FF）声音输入/输出
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公开(公告)号：KR1020120070908A
公开(公告)日：2012-07-02
申请号：KR1020100132431
申请日：2010-12-22
Applicant: 한국전자통신연구원
IPC: H04B7/26 , H04W72/08 , H04N21/6405 , H04W4/06
CPC classification number: H04W72/005 , H04B7/022 , H04N21/6405 , H04W4/06 , H04W36/16 , H04W72/0406 , H04W72/08
Abstract: PURPOSE: An MBS service system and a method thereof which performs channel allocation are provided to allocate an MCID to various MBS services in consideration of quality of a service flow on wireless WiMAX network. CONSTITUTION: An ASN gateway(120) offers an MCID(Multicast Connection IDentification) to a terminal(110). An MBS(Multicast and Broadcast Service) control server(140) supplies MBS channel information and service profile information to the terminal. A channel allocating server(150) allocates one or more service classes according to QoS(Quality of Service). The channel allocating server sets up the MCID to the terminal.
Abstract translation: 目的：提供一种执行信道分配的MBS业务系统及其方法，以考虑无线WiMAX网络上业务流的质量，向各种MBS业务分配MCID。 构成：ASN网关（120）向终端（110）提供MCID（组播连接标识）。 MBS（Multicast and Broadcast Service，组播广播业务）控制服务器向终端提供MBS信道信息和业务简档信息。 信道分配服务器（150）根据QoS（服务质量）分配一个或多个服务类别。 信道分配服务器将MCID设置到终端。
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5.发明公开
公开(公告)号：KR1020120070907A
公开(公告)日：2012-07-02
申请号：KR1020100132430
申请日：2010-12-22
Applicant: 한국전자통신연구원
IPC: H04B7/26 , H04W36/18 , H04N21/6405 , H04W4/06
CPC classification number: H04W4/06 , H04L63/0892 , H04W12/06 , H04W72/005 , H04B7/022 , H04N21/6405 , H04W36/18
Abstract: PURPOSE: A dynamic MBS range setting method for supplying a mobile IPTV service is provided to prevent unnecessary multicast and broadcast traffic from being transmitted to a plurality of base stations for reducing handover delay. CONSTITUTION: A base station sets up an MBS(Multicast and Broadcast Service) area(600). The base station configures a cell where a mobile terminal is located. BSs(Base Stations) allocates an MBS channel according to movement of the mobile terminal. An adjacent BS sets up the MBS area(610). The MBS channel of the adjacent BS is allocated according to a determined priority by using a probabilistic movement trend.
Abstract translation: 目的：提供用于提供移动IPTV业务的动态MBS范围设置方法，以防止不必要的组播和广播流量被发送到多个基站以减少切换延迟。 规定：基站建立了MBS（Multicast and Broadcast Service，组播广播业务）区域（600）。 基站配置移动终端所在的小区。 BS（基站）根据移动终端的移动分配MBS信道。 相邻BS建立MBS区域（610）。 通过使用概率运动趋势，根据确定的优先级来分配相邻BS的MBS信道。
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Patent Agency Ranking
公开(公告)号：KR1020100064312A
公开(公告)日：2010-06-14
申请号：KR1020090064340
申请日：2009-07-15
Applicant: 한국전자통신연구원
CPC classification number: H04W36/36 , H04W36/023 , H04W36/30 , H04W88/02
Abstract: PURPOSE: Although a network environment changes during data synchronization process, a data synchronization system and a method thereof are provided to reopen data synchronization by a data synchronization unit after changing call connection set in data synchronization control unit, thereby perfectly completing data synchronization process. CONSTITUTION: A network information setting unit(103) collects network situation information. Only if call connection setting by a network setting unit(101) is changed according to the collected network state information during data synchronization, data synchronization controller(104) stops data synchronization by a data synchronization unit(102). After the change of call connection through the network setting unit, the data synchronization control unit reopens the data synchronization by the data synchronization unit.
Abstract translation: 目的：虽然网络环境在数据同步过程中发生变化，但是提供了一种数据同步系统及其方法，用于在数据同步控制单元中改变呼叫连接之后，通过数据同步单元重新打开数据同步，从而完成数据同步过程。 构成：网络信息设定部（103）收集网络状况信息。 数据同步控制器（104）只有在数据同步期间根据所收集的网络状态信息改变网络设定单元（101）的呼叫连接设置，才停止数据同步单元（102）的数据同步。 在通过网络设置单元改变呼叫连接之后，数据同步控制单元通过数据同步单元重新打开数据同步。
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公开(公告)号：KR1020150104982A
公开(公告)日：2015-09-16
申请号：KR1020140027068
申请日：2014-03-07
Applicant: 한국전자통신연구원
IPC: H04N21/23 , H04N21/236
CPC classification number: H04N21/4302 , H04N21/42684 , H04N21/47214 , H04N21/4882
Abstract: 본 발명은 클라우드 네트워크 환경에서 멀티미디어 스트리밍 서비스에 대한 이동성 지원과 그에 따른 컨텐츠 동기화 지원에 관한 방법 및 장치에 대한 것으로, 본 발명은 제1 클라우드 서버로 단말을 위한 컨텐츠에 관한 멀티미디어 스트림들을 전송하는 단계, 상기 제1 클라우드 서버로부터 상기 컨텐츠에 관한 멀티미디어 스트림들을 동기에 맞추어 상기 제2 클라우드 서버로 전송할 것을 지시하는 동기화된 세션 생성 요청 메시지를 수신하는 단계, 및 상기 동기화된 세션 생성 요청 메시지를 기반으로 상기 제2 클라우드 서버로 상기 컨텐츠에 관한 멀티미디어 스트림들을 동기에 맞추어 전송하는 단계를 포함함을 특징으로 한다. 본 발명에 따르면 클라우드 영역 내에서 클라우드 기반 멀티미디어 스트리밍 서비스를 수신중인 단말이 다른 클라우드 영역으로 이동한 경우, 효율적이고 불편 없는 멀티미디어 스트리밍 서비스 이동성 및 동기화 기능을 제공할 수 있고, 클라우드 서버의 자원 효율성을 증대시킬 수 있다.
Abstract translation: 本发明涉及一种用于在云网络环境中相应地支持多媒体流服务的移动性并支持内容同步的方法和装置。 本发明包括以下步骤：将关于终端内容的多媒体流发送到第一云服务器; 接收同步会话生成请求消息，其根据所述同步，将关于所述内容的多媒体流从第一云服务器发送到第二云服务器; 以及基于所述同步的同步会话生成请求消息，将关于内容的多媒体流发送到所述第二云服务器。 根据本发明，当在云区域中接收基于云的多媒体流服务的终端移动到另一个云区域时，可以提供高效便捷的多媒体流服务的移动性和同步功能; 可以提高云服务器的资源效率。
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公开(公告)号：KR1020140006493A
公开(公告)日：2014-01-16
申请号：KR1020120073540
申请日：2012-07-05
Applicant: 한국전자통신연구원
CPC classification number: H04N21/6131 , H04N21/41407 , H04N21/64723 , H04W4/06
Abstract: The present invention relates to a device for managing a variable mutual broadcasting system (MBS) area of an MBS server and a method thereof. The present invention provides a safe and rapid transition of the MBS area by setting the MBS area to be variable by using properties in which movement of a user between the MBS areas and content preferences are changed according to time and environment. Therefore, the present invention effectively provides a high quality multimedia service in a mobile environment. [Reference numerals] (110) Information collecting unit; (120) MBS area managing unit
Abstract translation: 本发明涉及用于管理MBS服务器的可变相互广播系统（MBS）区域的装置及其方法。 本发明通过使用MBS区域和内容偏好之间的用户的移动根据时间和环境而改变的属性来设置MBS区域是可变的，从而提供了MBS区域的安全和快速的转换。 因此，本发明在移动环境中有效提供高质量的多媒体业务。 （附图标记）（110）信息收集单元; （120）MBS区域管理单元
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9.发明公开ＷＩＭＡＸ 네트워크 기반의 애드 혹 그룹 방송 서비스 시스템, ＷＩＭＡＸ 네트워크 기반의 애드 혹 그룹 방송 서비스를 위한 애드 혹 그룹 관리자 등록 방법 및 ＷＩＭＡＸ 네트워크 기반의 애드 혹 그룹 방송 서비스 방법 无效基于WIMAX网络的AD-HOC集团广播业务系统，基于WIMAX网络的AD-HOC集团广播业务注册方法和基于WIMAX网络的AD-HOC集团广播业务方法
公开(公告)号：KR1020140006492A
公开(公告)日：2014-01-16
申请号：KR1020120073539
申请日：2012-07-05
Applicant: 한국전자통신연구원
Abstract: The present invention relates to an ad-hoc group broadcast service system based on a WiMAX network, an ad-hoc group administrator registering method for an ad-hoc group broadcast service based on the WiMAX network, and an ad-hoc group broadcast service method based on the WiMAX network. The present invention can guarantee continuity of a service and broadcasting quality by using multicast and broadcast service (MBS) functions of the WiMAX network and overcoming limitations of a personal broadcast in an existing network. [Reference numerals] (111) Information input unit; (112) Administrator terminal registering unit; (113) Group broadcast service generating unit; (121) Authentication unit; (122) Access request unit; (AA) Subscriber terminal registering information; (BB) Ad-hoc group administrator registering information
Abstract translation: 本发明涉及一种基于WiMAX网络的自组群广播服务系统，基于WiMAX网络的自组群播服务的自组群管理员注册方法，以及自组群播服务方式 基于WiMAX网络。 本发明可以通过使用WiMAX网络的组播和广播服务（MBS）功能来保证服务的连续性和广播质量，并克服现有网络中的个人广播的限制。 （附图标记）（111）信息输入单元; （112）管理员终端注册单位; （113）组广播业务生成单元; （121）验证单元; （122）访问请求单元; （AA）用户终端注册信息; （BB）Ad-hoc组管理员注册信息
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公开(公告)号：KR101146307B1
公开(公告)日：2012-05-21
申请号：KR1020090064340
申请日：2009-07-15
Applicant: 한국전자통신연구원
Abstract: PURPOSE: Although a network environment changes during data synchronization process, a data synchronization system and a method thereof are provided to reopen data synchronization by a data synchronization unit after changing call connection set in data synchronization control unit, thereby perfectly completing data synchronization process. CONSTITUTION: A network information setting unit(103) collects network situation information. Only if call connection setting by a network setting unit(101) is changed according to the collected network state information during data synchronization, data synchronization controller(104) stops data synchronization by a data synchronization unit(102). After the change of call connection through the network setting unit, the data synchronization control unit reopens the data synchronization by the data synchronization unit.
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