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公开(公告)号：KR1020110043447A
公开(公告)日：2011-04-27
申请号：KR1020100097502
申请日：2010-10-06
CPC classification number: H04L7/02 , G06F17/15 , H04L7/00 , H04L7/0012
Abstract: PURPOSE: A device and method for detecting synchronization and a signal using block data processing are provided to process signals using block data processing, thereby effectively initial synchronization and an initial signal under a channel environment with a lower SNR. CONSTITUTION: A vector/matrix generating unit(120) generates an accumulation matrix from a signal vector of an inputted frame unit. A main eigen vector extracting unit extracts a main eigen vector from the accumulation matrix outputted from the vector/matrix generating unit. A correlation vector calculating unit(150) calculates the correlation value between a time-shifted matrix and a main eigen vector outputted from the main eigen vector extracting unit. The correlation vector calculating unit outputs a vector for a correlation value. A time delay detecting unit(160) outputs delay time about detected synchronization time. A time delay vector calculating unit(180) calculates the correlation value between a basic shifted matrix and the main eigen vector. A signal detecting unit(190) detects current synchronization and a current signal.
Abstract translation: 目的：提供使用块数据处理来检测同步和信号的装置和方法，以使用块数据处理对信号进行处理，从而在SNR较低的信道环境下有效地进行初始同步和初始信号。 构成：矢量/矩阵生成单元（120）从输入的帧单位的信号矢量生成累加矩阵。 主要特征向量提取单元从从矢量/矩阵生成单元输出的累积矩阵中提取主要特征向量。 相关矢量计算单元（150）计算从主要特征向量提取单元输出的时移矩阵和主要特征向量之间的相关值。 相关矢量计算单元输出相关值的矢量。 时间延迟检测单元（160）输出关于检测到的同步时间的延迟时间。 延时矢量计算单元（180）计算基本位移矩阵和主要特征向量之间的相关值。 信号检测单元（190）检测电流同步和电流信号。
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公开(公告)号：KR1020100037532A
公开(公告)日：2010-04-09
申请号：KR1020090073942
申请日：2009-08-11
Applicant: 한국전자통신연구원 , 영남대학교 산학협력단
CPC classification number: G01S5/0018 , G01S5/0215 , G01S5/14
Abstract: PURPOSE: In the radio determination method and radio determination apparatus is the wireless system, by being proceed the radio determination by using the delay spread the precision of the radio determination can be improved. CONSTITUTION: A terminal of the receiving side measures the electric wave delay tap of the signal received through channel from the transmission side(S310). The delay spread information having a plurality of forms on the electric wave delay tap is extracted. Distance between transmitting and receiving obtain on the delay spread information(S330). The location of the receiving side is calculated on distance between obtained transmitting and receiving.
Abstract translation: 目的：在无线电确定方法和无线电确定装置是无线系统中，通过使用延迟扩展进行无线电确定，可以提高无线电确定的精度。 构成：接收端的端子测量从发送侧通过信道接收的信号的电波延迟抽头（S310）。 提取具有多个形式的电波延迟抽头的延迟扩展信息。 发送和接收之间的距离获取延迟传播信息（S330）。 接收侧的位置是根据获得的发送和接收之间的距离来计算的。
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公开(公告)号：KR100923159B1
公开(公告)日：2009-10-23
申请号：KR1020080002299
申请日：2008-01-08
Abstract: 본 발명은 패킷 기반 무선 통신 시스템에서 무선 자원을 통해 전송되는 스케줄링 정보의 양을 최소화하고 무선 자원을 통해 추가적인 제어 정보를 전송하는 경우를 줄일 수 있는 패킷 데이터 전송 및 수신 방법에 관한 것으로, 패킷 기반 무선 통신 시스템에서의 패킷 데이터 전송 방법에 있어서, (a) 패킷 데이터 전송을 위한 무선 자원 블록의 부호화 방식을 지시하는 무선 자원 블록 구분자를 설정하는 단계; (b) 상기 무선 자원 블록 구분자가 포함되고, 스케줄링 정보를 전송하기 위한 제어 신호 블록을 단말기의 그룹 식별자로 마스킹한 CRC를 적용하여 부호화하는 단계; 및 (c) 상기 패킷 데이터 전송을 위한 무선 자원 블록을 상기 무선 자원 블록 구분자가 지시하는 방식에 따라 부호화하는 단계를 포함한다.
패킷, 통신, 시스템, 무선, LTE, 자원, 제어, 블록, 데이터, 패킷, 전송-
公开(公告)号：KR1020090081311A
公开(公告)日：2009-07-28
申请号：KR1020080061646
申请日：2008-06-27
Applicant: 한국전자통신연구원
CPC classification number: H04W74/002 , H04W48/06 , H04W48/16 , H04W74/08 , H04W84/042 , H04W76/27
Abstract: A random access method in a cellular system and an apparatus thereof are provided to use radio resources efficiently by using information about whether an arbitrary access preamble index exists. A terminal(100) of a cellular system comprises a preamble transmission unit(110), an arbitrary access response message processing unit(120) and a control information transmission unit(130). The preamble transmission unit randomly selects one among sequences, set by a base station(200), and transmits the arbitrary access preamble. The arbitrary access response message processing unit receives an arbitrary access response message including a sequence of the arbitrary access preamble and loaded-state information related to the arbitrary access from the base station. The control information transmission unit generates radio resource control information transmission based on the extracted response information, and then transmits it.
Abstract translation: 提供蜂窝系统中的随机接入方法及其装置，通过使用关于是否存在任意接入前导码索引的信息来有效地使用无线电资源。 蜂窝系统的终端（100）包括前导码传输单元（110），任意访问响应消息处理单元（120）和控制信息传输单元（130）。 前导码发送单元在由基站（200）设定的序列之中随机选择一个，并发送任意的接入前导码。 任意访问响应消息处理单元接收包括任意访问前导序列的任意访问响应消息和与来自基站的任意访问相关的加载状态信息。 控制信息发送单元基于所提取的响应信息生成无线资源控制信息发送，然后发送。
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公开(公告)号：KR100877078B1
公开(公告)日：2009-01-07
申请号：KR1020060097129
申请日：2006-10-02
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0072 , H04L1/0061
Abstract: 본 발명은 MBMS 수신 시스템에 있어서의 에러 정정 방법 및 장치에 관한 것이다. 본 발명은 응용 계층에서 에러 정정을 수행하는 MBMS 시스템의 단말 장치에서 에러가 발생한 PDU를 폐기하지 않고 에러 발생 여부를 표시하여 에러가 없는 PDU와 함께 응용 계층으로 전달함으로써, 에러 정정 효율을 개선할 수 있는 MBMS 수신 시스템에 있어서의 에러 정정 방법 및 장치를 제공하는데 그 목적이 있다. 본 발명의 MBMS 단말 장치는 상기 수신 데이터로부터 생성된 PDU(Protocol Data Unit)를 입력받고, 상기 PDU를 조합하여 SDU(Service Data Unit)를 생성하여 출력하며, 상기 SDU의 생성에 사용된 PDU의 에러에 대한 정보를 생성하여 출력하는 RLC(Radio Link Control) 프로토콜 처리 수단; 및 상기 SDU를 입력받아 전달하기 위한 PDCP(Packet Data Convergence Protocol) 처리 수단을 포함한다.
MBMS, Protocol Data Unit(PDU), Service Data Unit(SDU),-
Patent Agency Ranking
公开(公告)号：KR1020080084739A
公开(公告)日：2008-09-19
申请号：KR1020080023950
申请日：2008-03-14
CPC classification number: H04W76/28 , H04W52/0216 , H04W72/12 , Y02D70/00 , Y02D70/1262 , Y02D70/23 , Y02D70/24 , H04W52/02 , H04W28/18
Abstract: A method for receiving packets in a mobile communication system is provided to operate a mobile station in one of operation levels according to activity of packet data of a corresponding service, thereby achieving an efficient low-consumption operation. A mobile station receives information about inconsecutive reception operation parameters including a reception cycle from a base station(S110). The mobile station is operated in one of a first operation level at which data are received every a first reception cycle, a second operation level at which data are received every a second reception cycle shorter than the first reception cycle, and a consecutive reception level at which the packet data are consecutively received, thereby receiving packets(S170,S190). The mobile station selects one of the first operation level, the second operation level, and the consecutive operation level, according to activity of the packet data.
Abstract translation: 提供一种用于在移动通信系统中接收分组的方法，以根据相应服务的分组数据的活动来操作移动台中的一个操作级别，从而实现有效的低消耗操作。 移动站从基站接收包括接收周期的不连续接收操作参数的信息（S110）。 移动台按照第一接收周期接收数据的第一操作电平和比第一接收周期短的第二接收周期接收数据的第二操作电平，以及连续接收电平 分组数据被连续接收，从而接收分组（S170，S190）。 移动站根据分组数据的活动来选择第一操作级别，第二操作级别和连续操作级别中的一种。
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公开(公告)号：KR1020080018148A
公开(公告)日：2008-02-27
申请号：KR1020070084865
申请日：2007-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1816 , H04L1/0025 , H04L1/1887 , H04L2001/0093 , H04B7/2612
Abstract: MBMS(Multimedia Broadcast Multicast Service) data transmitting and receiving methods in a packet based cellular system are provided to improve error correction efficiency of received data by an HARQ(Hybrid Automatic Repeat reQuest) scheme when transmitting MBMS data to a plurality of terminals in a point to multipoint scheme. An MBMS data transmitting method includes the steps of: transmitting schedule information of transmitting data, HARQ information, and a service group identifier for an MBMS to a plurality of terminals through an MBMS's exclusive control channel(301); transmitting exclusive feedback channel information of the terminals and unique scrambling codes of the terminals to the terminals(302); transmitting MBMS data packets to the terminals; transmitting wireless resource information of data re-transmitted by a down-link control signal to the terminals when an NACK(Negative Acknowledgement) is received from the at least one terminal through an exclusive feedback channel(304); and transmitting the re-transmitted data to the terminals(305).
Abstract translation: 提供了一种基于分组的蜂窝系统中的MBMS（Multimedia Broadcast Multicast Service，多媒体广播多播服务）数据发送和接收方法，以便在一点上向多个终端发送MBMS数据时，通过HARQ（Hybrid Automatic Repeat reQuest）方式提高接收数据的纠错效率 到多点方案。 MBMS数据发送方法包括以下步骤：通过MBMS专用控制信道（301）向多个终端发送MBMS的发送数据，HARQ信息和MBMS的业务组标识符的调度信息; 将终端的独家反馈信道信息和终端的唯一扰码发送到终端（302）; 向所述终端发送MBMS数据分组; 当通过专用反馈信道从所述至少一个终端接收到NACK（否定确认）时，将通过下行链路控制信号重新发送的数据的无线资源信息发射到终端; 以及将重新发送的数据发送到终端（305）。
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公开(公告)号：KR1020070105858A
公开(公告)日：2007-10-31
申请号：KR1020070038849
申请日：2007-04-20
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W68/025 , H04L5/0053 , H04W68/02 , H04W72/042 , H04B7/2612
Abstract: A method for transmitting paging information in a mobile communication system is provided to improve the utilization of limited radio resources by administrating the setting and mapping of a physical channel and a transport channel variably and flexibly. A paging channel(PCH) is formed in a transport channel corresponding to the occurrence of paging information. A paging indication channel(PICH) is set according to the paging information, and the PICH is added to radio resources of a physical layer(S140). The PCH is allocated to radio resources of the physical layer with a fixed position and a fixed size(S150). Scheduling information is allocated to a control channel of the physical layer. The scheduling information includes a scheduling identifier and radio resource allocation information. The scheduling identifier is used to distinguish between a specific terminal and a terminal group between a base station scheduler and a terminal.
Abstract translation: 提供了一种用于在移动通信系统中发送寻呼信息的方法，通过可变地和灵活地管理物理信道和传输信道的设置和映射来提高有限无线资源的利用。 在对应于寻呼信息的出现的传输信道中形成寻呼信道（PCH）。 根据寻呼信息设置寻呼指示信道（PICH），并将PICH添加到物理层的无线资源（S140）。 PCH以固定位置和固定大小分配给物理层的无线电资源（S150）。 调度信息被分配给物理层的控制信道。 调度信息包括调度标识符和无线资源分配信息。 调度标识符用于区分基站调度器和终端之间的特定终端和终端组。
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公开(公告)号：KR1020070095774A
公开(公告)日：2007-10-01
申请号：KR1020070022846
申请日：2007-03-08
CPC classification number: H04L1/1874
Abstract: A method of retransmission in a mobile communication system is provided to enhance transmission efficiency by interlocking ARQ(Automatic Retransmission Request) with HARQ(Hybrid Automatic Retransmission Request) in the mobile communication system. A method of retransmission in a mobile communication system includes the steps of: shifting to a second layer waiting status if first layer receiving failure information according to the predetermined frequency of retransmissions is received when a fragment block of second level transmission data is sent to a receiving side; shifting to a first layer receiving status if first layer receiving success information is received in the sending status; and shifting to a transmission completion status if second layer receiving success information is received in the sending status.
Abstract translation: 提供移动通信系统中的重传方法，以通过在移动通信系统中将ARQ（自动重传请求）与HARQ（混合自动重传请求）互锁来提高传输效率。 一种在移动通信系统中的重发方法包括以下步骤：当第二层发送数据的分段块被发送到接收端时，如果接收到根据预定重传频率的第一层接收到故障信息，则转移到第二层等待状态 侧; 如果在发送状态中接收到第一层接收成功信息，则转移到第一层接收状态; 如果在发送状态中接收到第二层接收成功信息，则转移到传输完成状态。
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公开(公告)号：KR1020070038283A
公开(公告)日：2007-04-10
申请号：KR1020050093444
申请日：2005-10-05
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04L1/0009 , H04L1/0011 , H04L1/0076 , H04L12/40065
Abstract: 본 발명은 이동통신 시스템에서 고속의 패킷 데이터 전송을 위한 논리 및 전송 채널의 구성과 그에 따른 운영 방법에 관한 것이다.
본 발명의 채널 구성 방법은 단말의 상태 천이 없이 간단한 통신을 가능하게 하여, 통신자원을 효율적으로 관리할 수 있도록 한다. 또한, 단말의 호출 없이 패킷의 직접 전송을 가능하게 한다.
본 발명에 의하면, 단말의 상태 천이 횟수를 줄이고, 상태 천이로 인한 지연을 최소화하는 효과가 있다.
논리 채널 (Logical channel), 전송 채널 (Transport channel), 상태 천이(state transition)
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