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公开(公告)号：KR100963788B1
公开(公告)日：2010-06-17
申请号：KR1020080036354
申请日：2008-04-18
Applicant: 한국전자통신연구원 , 중앙대학교 산학협력단
Abstract: 본 발명은 이동 단말기가 아이들 모드(Idle mode)에서 자신에게 할당된 페이징 유효 구간(paging available interval) 구간에 깨어나서 페이징 인디케이터(paging indicator) 검출을 수행하기 위한 동기를 획득하는 단계와, 상기 동기 획득 결과에 따라 현재 페이징 유효 구간과 이전 페이징 유효 구간의 서빙(serving) 기지국이 다른 경우, 페이징 제어(paging control) 정보를 획득하는 단계와, 상기 동기 획득 결과에 따라 현재 페이징 유효 구간과 이전 페이징 유효 구간의 서빙(serving) 기지국이 동일한 경우, 자신이 속한 이동 단말기 그룹에 해당하는 페이징 인디케이터를 검출하는 단계 및 상기 검출된 페이징 인디케이터를 이용하여 페이징 제어 정보 획득 여부를 판단하는 단계를 포함하는 페이징 인디케이터 검출 방법을 제공한다.
페이징 인디케이터, 전송, 검출, 아이들 모드Abstract translation: 目的：提供一种用于在基于正交频分的移动通信系统中检测寻呼指示符的方法和装置，以使用前置码发送寻呼指示符，从而发送寻呼指示符而不增加开销。 构成：在基于正交频分的移动通信系统中检测寻呼指示符的方法包括以下步骤。 在从空闲模式分配给移动终端的寻呼可用间隔期间，移动终端（110,120）被唤醒，获得用于检测寻呼指示符的同步。 当服务于当前寻呼可用间隔的基站和先前的寻呼可用间隔根据同步获取结果不同时，获得寻呼控制信息。
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公开(公告)号：KR1020100020900A
公开(公告)日：2010-02-23
申请号：KR1020090068227
申请日：2009-07-27
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0053 , H04L5/001 , H04W88/02
Abstract: PURPOSE: A communication system using carrier aggregation and a base station and terminal included in the communication system are provided to offer the high compatibility by serving existing terminals for the communications system which does not use the carrier collection. CONSTITUTION: A common element carrier specification unit designates the frequency band for the first and second type terminal as down-ink and uplink common element carrier. An exclusive element carrier specification unit designates the frequency band for the terminal as downlink and uplink exclusive element carrier. A broadcasting information transfer unit uses the downlink common element carrier to transmit the common broadcast information for the first and second type terminal and the exclusive broadcast information for the second type terminal. An element carrier pointer transmission unit transmits semi-static or the dynamic element carrier pointer directing the element carriers used in the second type terminal and the base station.
Abstract translation: 目的：提供使用载波聚合的通信系统和通信系统中包括的基站和终端，通过为不使用载波集合的通信系统提供现有终端来提供高的兼容性。 构成：公共元素载波规范单元将第一和第二类型终端的频带指定为下墨和上行链路公共元素载波。 专用载波规范单元将终端的频带指定为下行链路和上行链路专用载波。 广播信息传送单元使用下行链路公共单元载波来发送用于第一和第二类型终端的公共广播信息和用于第二类型终端的专用广播信息。 元素载波指针传输单元发送半静态或者引导用于第二类型终端和基站中的元素载体的动态元素载波指针。
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公开(公告)号：KR1020100010021A
公开(公告)日：2010-01-29
申请号：KR1020090062691
申请日：2009-07-09
Applicant: 한국전자통신연구원
CPC classification number: H04L12/66 , H04B7/155 , H04B7/2606 , H04L69/04 , H04W28/06 , H04W76/22 , H04W84/047 , H04W88/16
Abstract: PURPOSE: A communication system capable of removing communication overhead is provided to reduce the amount of control information for data transmission. CONSTITUTION: A receiver(710) receives GTP(GPRS Tunneling Protocol) header and data packet from a gateway. A header compression unit(720) compresses the GTP header using the ROHC(RObust Header Compression) technique and creates information for restoring the compressed GTP header. A transmitter(740) transmits the compressed GTP header and data packet to a relay.
Abstract translation: 目的：提供能够消除通信开销的通信系统，以减少用于数据传输的控制信息量。 构成：接收机（710）从网关接收GTP（GPRS隧道协议）报头和数据包。 报头压缩单元（720）使用ROHC（RObust报头压缩）技术来压缩GTP报头，并创建用于恢复压缩的GTP报头的信息。 发射机（740）将压缩的GTP报头和数据分组发送到中继站。
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公开(公告)号：KR1020090117584A
公开(公告)日：2009-11-12
申请号：KR1020080091003
申请日：2008-09-17
IPC: H03M13/11
CPC classification number: H03M13/1148 , H03M13/005 , H04L1/0041
Abstract: PURPOSE: An apparatus and a method for encoding a low density parity check code are provided to generate a low density parity code having a low error by performing encoding of the low density parity code. CONSTITUTION: A parity check matrix generating part(310) generates a parity check matrix including a parity sub matrix. The parity check matrix includes a matrix element which is a message bit and a matrix element which is a parity bit. A puncturing part(320) performs puncturing about at least one matrix element among matrix element of a parity sub matrix. The puncturing part performs puncturing about at least one matrix element among matrix element of a first block matrix according to a puncturing order. The puncturing part punctures the matrix element of the first block matrix based on a matrix size of the first block matrix in a puncturing process. An encoding part(330) encodes an information word inputted from user by using the parity check matrix.
Abstract translation: 目的：提供一种用于编码低密度奇偶校验码的装置和方法，以通过执行低密度奇偶码的编码来生成具有低误差的低密度奇偶校验码。 构成：奇偶校验矩阵生成部（310）生成包括奇偶校验子矩阵的奇偶校验矩阵。 奇偶校验矩阵包括作为消息比特的矩阵元素和作为奇偶校验位的矩阵元素。 删截部分（320）对奇偶校验子矩阵的矩阵元素中的至少一个矩阵元素执行穿孔。 删截部分根据穿孔顺序对第一块矩阵的矩阵元素中的至少一个矩阵元素进行穿孔。 穿刺部分在穿刺过程中基于第一块矩阵的矩阵大小来刺穿第一块矩阵的矩阵元素。 编码部分（330）通过使用奇偶校验矩阵对从用户输入的信息字进行编码。
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公开(公告)号：KR1020090110717A
公开(公告)日：2009-10-22
申请号：KR1020080036354
申请日：2008-04-18
Applicant: 한국전자통신연구원 , 중앙대학교 산학협력단
CPC classification number: H04W68/02 , H04W52/02 , H04W56/002
Abstract: PURPOSE: A method and an apparatus for detecting a paging indicator in an orthogonal frequency division based mobile communication system are provided to transmit a paging indicator using a preamble, thereby transmitting a paging indicator without increasing overhead. CONSTITUTION: A method for detecting a paging indicator in an orthogonal frequency division based mobile communication system comprises the following steps. A mobile terminal(110,120) is waked up during a paging available interval assigned to the mobile terminal from an idle mode, synchronization for detecting a paging indicator is obtained. When serving base stations of a current paging available interval and a previous paging available interval are different according to a synchronization obtaining result, paging control information is obtained.
Abstract translation: 目的：提供一种用于在基于正交频分的移动通信系统中检测寻呼指示符的方法和装置，以使用前置码发送寻呼指示符，从而发送寻呼指示符而不增加开销。 构成：在基于正交频分的移动通信系统中检测寻呼指示符的方法包括以下步骤。 在从空闲模式分配给移动终端的寻呼可用间隔期间，移动终端（110,120）被唤醒，获得用于检测寻呼指示符的同步。 当服务于当前寻呼可用间隔的基站和先前的寻呼可用间隔根据同步获取结果不同时，获得寻呼控制信息。
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Patent Agency Ranking
公开(公告)号：KR1020090085504A
公开(公告)日：2009-08-07
申请号：KR1020080089608
申请日：2008-09-11
Applicant: 한국전자통신연구원
CPC classification number: H04W12/02 , H04B7/06 , H04L5/0016 , H04L5/0023 , H04L5/0026 , H04L5/0062 , H04L5/0073 , H04W52/367 , H04W72/087 , H04B7/0413 , H04L27/2691
Abstract: An interference mitigation method of a cellular system based on orthogonal frequency division multiple access is provided to improve spectrum efficiency of a cell boundary user by removing interference between cells using a multiple receiving antenna and a spreading code. A radio resource is divided into a resource group for reusing a partial frequency and a resource group for removing interference between cells(S910). The resource group for reusing a partial frequency is redivided into detailed resource groups as the number of cells for reusing a partial frequency(S920). The resource group for removing the interference between the cells in redivided into detailed resource groups according to spreading coefficient(S930). A resource of the resource group according to the spreading coefficient is allocated according to a performance requirement of a down-link control channel(S950). Each transmitting data symbol is spread to a spreading code vector coupled with each unit resource, and is transmitted by using a base resource which forms a corresponding unit resource(S960). A data symbol is restored according to the spreading coefficient by receiving desired signals or interference signals(S970).
Abstract translation: 提供了基于正交频分多址的蜂窝系统的干扰减轻方法，通过消除使用多个接收天线和扩展码的小区之间的干扰来提高小区边界用户的频谱效率。 无线电资源被划分为用于重新使用部分频率的资源组和用于消除小区之间的干扰的资源组（S910）。 用于重用部分频率的资源组被重新划分为详细的资源组，作为重新使用部分频率的单元数（S920）。 根据扩展系数将资源组中的干扰消除为详细的资源组（S930）。 根据扩频系数的资源组资源根据下行链路控制信道的性能要求分配（S950）。 每个发送数据符号被扩展到与每个单元资源耦合的扩展码向量，并且通过使用形成相应单元资源的基本资源来发送（S960）。 通过接收所需信号或干扰信号，根据扩展系数恢复数据符号（S970）。
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77.发明授权이동 능동망（ｍｏｂｉｌｅ ａｃｔｉｖｅｎｅｔｗｏｒｋ）환경에서 국지적 이동성을 지원하는 지역인증 방법 有权이동능동망（mobile activenetwork）환경에서국지적이동성의지원하지지역인증방
公开(公告)号：KR100875918B1
公开(公告)日：2008-12-26
申请号：KR1020060122632
申请日：2006-12-05
Applicant: 한국전자통신연구원
Abstract: A method for local authentication supporting micro mobility in a mobile active network environment is provided to generate and distribute a session key for weak wireless area security in a wireless mobile network and AAA structure inter-working model. A method for local authentication supporting micro mobility in a mobile active network environment includes the steps of: receiving and storing an authenticator generated in a home network by each node. An active network consists of nodes(S401); detecting local mobility inside the active network by a mobile node and transmitting a register request message to a server of the home network(S403); and performing authentication and binding processes inside the active network based on the authenticator by a local authentication server. The local authentication server receives the register request message of the mobile node through a foreign agent(S405).
Abstract translation: 提供了一种支持移动主动网络环境下微移动性的本地认证方法，用于生成并分配无线移动网络中弱无线区域安全性的会话密钥和AAA结构互通模型。 一种支持移动主动网络环境中的微移动性的本地认证方法，包括以下步骤：接收并存储每个节点在家庭网络中生成的认证符。 活动网络由节点组成（S401）; 通过移动节点检测活动网络内的本地移动性，并向家庭网络的服务器发送注册请求消息（S403）; 以及由本地认证服务器基于认证器在主动网络内执行认证和绑定过程。 本地认证服务器通过外地代理接收移动节点的注册请求消息（S405）。
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公开(公告)号：KR100875917B1
公开(公告)日：2008-12-26
申请号：KR1020060122561
申请日：2006-12-05
Applicant: 한국전자통신연구원
Abstract: An apparatus and a method of route optimization in nested network mobility environment are provided to increase packet transmission efficiency by preventing generation of interference of a both-direction tunneling. A method of route optimization in a nested network mobility environment includes the steps of: performing an RA(Router Advertisement)(S410); receiving the RA by all mobile routers and mobile nodes(S420); creating an LCoA and an RCoA according to a procedure defined in HMIPv6 and registering the LCoA and the RCoA to Root-MR(Mobile Router), MAP(Mobility Anchor Point)(S430); AND registering the LCoA and the RCoA with an Root-MR, MAP, to each upper router(S440).
Abstract translation: 提供了嵌套网络移动环境中的路由优化的设备和方法，以通过防止产生双向隧穿的干扰来提高分组传输效率。 在嵌套网络移动性环境中的路由优化方法包括以下步骤：执行RA（路由器通告）（S410）; 通过所有移动路由器和移动节点接收RA（S420）; 根据HMIPv6中定义的过程创建LCoA和RCoA，并将LCoA和RCoA注册到根 - MR（移动路由器），MAP（移动锚点）（S430）; 以及向每个上层路由器注册具有根MR，MAP的LCoA和RCoA（S440）。
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公开(公告)号：KR1020070096883A
公开(公告)日：2007-10-02
申请号：KR1020070028515
申请日：2007-03-23
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
CPC classification number: H04B7/022 , H04B7/0671 , H04B7/0697 , H04L1/0606 , H04L1/0618 , H04L2001/0093 , Y02D70/00 , Y02D70/122 , Y02D70/442 , Y02D70/444 , H04L27/2627
Abstract: A macro diversity transmitter for providing broadcast/multicast services through multiple Tx antennas and a method thereof are provided to increase the cell coverage for a specific data rate and lower Tx power by applying a MIMO(Multi Input Multi Output)-based spatial multiplexing scheme in a cell and obtaining a supplemental diversity between neighbor cells or base stations in order to improve the reception quality of a terminal located at the edge of the cell in the case of providing a broadcast/multicast service in a wireless cellular communication system. A macro diversity transmitter comprises a modulator(920), a spatial multiplexer(930), and an OFDM modulator(970). The modulator maps channel-coded input data into modulation symbols according to a preset modulation scheme and creates a symbol stream. The spatial multiplexer executes spatial multiplexing for the symbol stream and creates parallel frequency-axis symbol streams. The OFDM modulator cyclically delays each of the frequency-axis symbol streams in a time domain and outputs it to each corresponding antenna.
Abstract translation: 提供一种用于通过多个Tx天线提供广播/组播服务的宏分集发射机及其方法，以通过将基于MIMO（多输入多输出）的空间复用方案应用于基于MIMO（多输入多输出）的空间复用方案来增加特定数据速率的小区覆盖和降低Tx功率 在相邻小区或基站之间获得补充分集，以便在无线蜂窝通信系统中提供广播/多播服务的情况下，提高位于小区边缘的终端的接收质量。 宏分集发射机包括调制器（920），空间复用器（930）和OFDM调制器（970）。 调制器根据预设的调制方案将信道编码输入数据映射成调制符号，并创建符号流。 空间多路复用器执行符号流的空间复用并创建并行的频率轴符号流。 OFDM调制器在时域中循环地延迟每个频率轴符号流，并将其输出到每个对应的天线。
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公开(公告)号：KR1020070061065A
公开(公告)日：2007-06-13
申请号：KR1020060041352
申请日：2006-05-09
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1845 , H04L1/0057 , H04L1/08 , H04L1/1628 , H04L1/1809 , H04L1/1819
Abstract: A method for retransmitting/decoding a codeword using feedback information and a transmitting/receiving apparatus are provided to improve the success probability of retransmission by configuring retransmission feedback information by repeating a code bit of the previously transmitted codeword for decoding a retransmission part in a receiving apparatus. An apparatus for retransmitting/decoding a codeword using feedback information includes an index dividing unit, a retransmitting division determining unit, and a transmission controlling unit. The index dividing unit shows a position of data to retransmit as index information in pre-set division information based on retransmission request information received from a receiving apparatus. The retransmitting division determining unit calculates wireless resources used for retransmission of packet data, compares the number of retransmitting division information among the calculated wireless resources with the number of the calculated wireless resources, and generates result information. The transmission controlling unit completes an information bit for retransmission by using the index information to fill the calculated wireless resources with a code bit to transmit, forms a retransmission codeword obtained by adding a parity bit stream to the completed information bit, and transmits the codeword to the receiving apparatus.
Abstract translation: 提供一种使用反馈信息重发/解码码字的方法和发送/接收装置，通过重复用于解码接收装置中的重传部分的先前发送的码字的码位来配置重传反馈信息来提高重传的成功概率 。 使用反馈信息重发/解码码字的装置包括索引分割单元，重传分割确定单元和传输控制单元。 索引划分单元基于从接收装置接收到的重发请求信息，示出作为索引信息重发的数据在预设分区信息中的位置。 重传分割确定单元计算用于分组数据的重发的无线资源，将计算出的无线资源中的重发分割信息的数量与计算出的无线资源的数量进行比较，并生成结果信息。 传输控制单元通过使用索引信息来完成用于重传的信息比特，以用要发送的码位来填充所计算的无线资源，形成通过将奇偶校验比特流加到完成的信息比特而获得的重发码字，并将码字发送到 接收装置。
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