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公开(公告)号：KR1020110093695A
公开(公告)日：2011-08-18
申请号：KR1020110011882
申请日：2011-02-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A receiving device and method for hierarchical modulation is provided to decode higher layer information based on lower layer decoding information, thereby reducing interference between layers. CONSTITUTION: A phase compensation part(210) transfers a phase compensated signal to a basic layer decoding part(230) by compensating the phase of a received signal. The basic layer decoding part decodes an information bit of the basic layer among several layers. The basic layer decoding part calculates a bit metric including code bit information of the basic layer based on the phase compensated signal. An enhancement layer decoding part(250) successively decodes an information bit of the enhancement layer which is a higher layer of the basic layer based on a decoding result of a lower layer.
Abstract translation: 目的：提供一种用于分级调制的接收装置和方法，用于基于较低层解码信息解码较高层信息，从而减少层之间的干扰。 构成：相位补偿部（210）通过补偿接收信号的相位将相位补偿信号传送到基本层解码部（230）。 基本层解码部分解码几层中的基本层的信息位。 基本层解码部分基于相位补偿信号来计算包括基本层的码位信息的比特度量。 增强层解码部（250）基于下层的解码结果，连续解码作为基层的较高层的增强层的信息比特。
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公开(公告)号：KR1020110093694A
公开(公告)日：2011-08-18
申请号：KR1020110011881
申请日：2011-02-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A layer transmitting device and a receiving device and receiving method are provided to perform decode process for each layer after estimating symbol metrics of all layers from a received signal, thereby reducing interferences between the layers. CONSTITUTION: A plurality of sign parts(110) respectively corresponds to a plurality of layers. The sign part generates a code bit by encoding an information bit corresponding to a layer. A plurality of bit interleaving parts(130) respectively corresponds to the code bit. An interleaved bit is created by bit-interleaving the corresponding code bit. A modulation part(150) classifies a plurality of layers into a plurality of layer groups. The modulation part creates a modulation symbol for each layer group by modulating a plurality of interleaved bits corresponding to each layer group. A gain control part(171,172) controls a gain of the modulation symbol by a layer group. A combine part(190) creates a transmission symbol by combining the modulation symbol.
Abstract translation: 目的：提供层发送装置和接收装置及接收方法，用于在从接收到的信号估计所有层的符号度量之后对每层进行解码处理，从而减少层之间的干扰。 构成：多个符号部分（110）分别对应于多个层。 符号部分通过对与层相对应的信息位进行编码来生成代码位。 多个比特交织部分（130）分别对应于码比特。 通过对相应的代码位进行位交织来产生交织位。 调制部分（150）将多个层分成多个层组。 调制部分通过调制与每个层组相对应的多个交错比特来为每个层组创建调制符号。 增益控制部分（171,172）通过层组控制调制符号的增益。 组合部分（190）通过组合调制符号来产生传输符号。
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公开(公告)号：KR1020090130233A
公开(公告)日：2009-12-21
申请号：KR1020090121552
申请日：2009-12-09
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1816 , H04L1/0025 , H04L1/1887 , H04L2001/0093
Abstract: PURPOSE: An MBMS data transmission and receiving in packet based on cellular system are provided to improve the reception error correction efficiency of data by using the hybrid automatic retransmission request technology. CONSTITUTION: The base station transmits the control information through the MBMS dedicated control channel with terminals(301). The base station transmits data through the transmission channel(302). In the base station, error existence and nonexistence is responded from one or more terminal(303). The base station transmits the wireless resource information of retransmission data with terminals by using the down link control signal(304). The base station retransmits data through the transmission channel(305).
Abstract translation: 目的：提供基于蜂窝系统的分组中的MBMS数据传输和接收，以通过使用混合自动重传请求技术来提高数据的接收纠错效率。 构成：基站通过具有终端（301）的MBMS专用控制信道发送控制信息。 基站通过传输信道发送数据（302）。 在基站中，从一个或多个终端（303）响应错误存在和不存在。 基站通过使用下行链路控制信号，用终端发送重发数据的无线资源信息（304）。 基站通过传输信道重传数据（305）。
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74.发明授权
公开(公告)号：KR100927736B1
公开(公告)日：2009-11-18
申请号：KR1020080022350
申请日：2008-03-11
IPC: H04W72/04
CPC classification number: H04W72/042 , H04W8/26 , H04W28/06 , H04W76/10
Abstract: A method for establishing synchronization with a user equipment in a base station of a wireless communication system, comprising: transmitting random access channel information to the user equipment (S62); receiving a random access message corresponding to the random access channel information from the user equipment (S63); and transmitting a response message including information for establishing synchronization to the user equipment (S63), wherein the random access channel information includes random access channel allocation information.
Abstract translation: 一种用于与无线通信系统的基站中的用户设备建立同步的方法，包括：向所述用户设备发送随机接入信道信息（S62）; 接收来自用户设备的随机接入信道信息对应的随机接入消息（S63）; 以及向用户设备发送包括用于建立同步的信息的响应消息（S63），其中随机接入信道信息包括随机接入信道分配信息。
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公开(公告)号：KR100885476B1
公开(公告)日：2009-02-24
申请号：KR1020070042760
申请日：2007-05-02
Abstract: 본 발명은 직교 주파수 분할 다중 접속(Orthogonal Frequency Division Multiple Access: 이하, OFDMA) 시스템에서의 하향링크 스케줄링 정보 송/수신 방법 및 장치에 관한 것으로, 이 송신 방법은 OFDMA 시스템의 하향 링크 자원으로 구성된 자원블록들 중에서, 적어도 하나의 자원블록을 각 단말에 할당하는 할당단계; 상기 각 단말에 대해, 상기 할당된 자원블록 중에서 소정의 조건에 따라 자원블록을 선택하는 선택단계; 상기 각 단말에 대해, 상기 단말의 자원할당정보 및 상기 단말을 식별하기 위한 식별정보를 포함하는 스케줄링 정보를 생성하는 생성단계; 및 상기 각 단말에 대해, 선택된 자원블록을 이용하여 상기 단말의 스케줄링 정보를 전송하는 전송단계를 포함한다. 본 발명에 따르면, 스케줄링의 자유도를 줄이지 않으면서 스케줄링 정보의 전송에 사용되는 하향 링크 자원의 량을 줄일 수 있다.
OFDM, OFDMA, 하향링크 제어정보, 스케줄링 정보, 자원할당 정보, 개별적 코딩, 그룹별 코딩, 비트맵-
Patent Agency Ranking
公开(公告)号：KR1020080110554A
公开(公告)日：2008-12-18
申请号：KR1020080056562
申请日：2008-06-16
Applicant: 한국전자통신연구원
CPC classification number: H04W76/28 , H04W56/0005 , H04W74/00 , H04W76/27
Abstract: A down link reception indication method in a packet based mobile communications system which effectively controls the uplink is provided to maintain the synchronization of uplink effectively in case that the terminal does not maintain the synchronization of uplink. A base station assigns the arbitrary contact preamble index. A down link reception indication message including the allocated arbitrary contact preamble index is generated(205). The generated down link reception indication message is transmitted to the terminal(206). If the preamble signal designated with the arbitrary contact preamble index is received as a response, response information about random access is generated.
Abstract translation: 提供了有效控制上行链路的基于分组的移动通信系统中的下行链路接收指示方法，用于在终端不维持上行链路的同步的情况下有效地维持上行链路的同步。 基站分配任意接触前导索引。 产生包括所分配的任意接触前导索引的下行链路接收指示消息（205）。 所生成的下行链路接收指示消息被发送到终端（206）。 如果接收到以任意接触前导索引指定的前导信号作为响应，则生成关于随机接入的响应信息。
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公开(公告)号：KR1020080086384A
公开(公告)日：2008-09-25
申请号：KR1020080026189
申请日：2008-03-21
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1854 , H04L1/06 , H04L1/1812 , H04L1/1861 , H04L1/1864 , H04W4/06
Abstract: A method for transmitting and receiving broadcast and multicast service data in a packet based mobile communication system is provided to enhance error correction efficiency by applying an HARQ(Hybrid Automatic Repeat Request) scheme while transmitting MBMS data to plural terminals. MBMS data is transmitted to plural terminals in multiple cells. A service group ID for the MBMS(Multimedia Broadcast and Multicast Service) and shared feedback control information for respective cells are transmitted to the terminals through a control channel(301). The shared feedback control information for respective cells is commonly used for the terminals in the same cell. The MBMS data packet is transmitted to the terminal(302). When a response is received through the shared feedback channel from one of the terminals, wireless resource information of the data to be retransmitted through a downlink control channel is transmitted to the terminals(304). The retransmission data is transmitted to the terminals(305).
Abstract translation: 提供了一种用于在基于分组的移动通信系统中发送和接收广播和多播服务数据的方法，以通过在向多个终端发送MBMS数据的同时应用HARQ（混合自动重传请求）方案来提高纠错效率。 MBMS数据被发送到多个小区中的多个终端。 用于MBMS（多媒体广播和组播业务）的MBMS业务组ID和各个小区的共享反馈控制信息通过控制信道（301）发送给终端。 各个小区的共享反馈控制信息通常用于同一小区中的终端。 MBMS数据分组被发送到终端（302）。 当通过共享反馈信道从一个终端接收到响应时，将通过下行链路控制信道重传的数据的无线资源信息发送到终端（304）。 重传数据被发送到终端（305）。
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公开(公告)号：KR1020080065245A
公开(公告)日：2008-07-11
申请号：KR1020080002299
申请日：2008-01-08
Abstract: A method for transmitting and receiving packet data in a packet-based wireless communication system is provided to minimize an amount of scheduling information to be transmitted through the wireless resources. A base station broadcasts the system information including scheduling policy, persistence allocation or dynamic allocation through a broadcasting channel(201). The base station designates the corresponding group of the terminal, allocates and notifies the group identifier together with the inherent terminal identifier to the terminal(203) at the call setting procedure. At this time, the base station designates the scheduling property relating to the corresponding terminal through an RRC(Radio Resource Control) connection set procedure. The RRC connection procedure between the base station and the terminal is performed and thereafter the base station allocates the radio resources block for transmitting the down-link packet data and sets the radio RB(Resources Block) identifier(204). Thereafter, the base station transmits the control signal block to the terminal according to the designated scheduling pattern(205).
Abstract translation: 提供了一种在基于分组的无线通信系统中发送和接收分组数据的方法，以最小化通过无线资源发送的调度信息的量。 基站通过广播信道（201）广播包括调度策略，持久性分配或动态分配的系统信息。 基站指定相应的终端组，在呼叫设置过程中向终端（203）分配并将固有终端标识符与组标识符一起通知给终端（203）。 此时，基站通过RRC（无线资源控制）连接集合过程来指定与对应的终端相关的调度属性。 执行基站与终端之间的RRC连接过程，此后基站分配用于发送下行链路分组数据的无线资源块，并设置无线电RB（资源块）标识符（204）。 此后，基站根据指定的调度模式向终端发送控制信号块（205）。
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79.发明公开광대역 이동통신 시스템의 사용자 단말에서의 채널상태정보전송 방법과, 그에 따른 기지국에서의 무선자원 할당 방법 失效在宽带移动通信系统的用户终端中报告信道质量信息的方法和在基站中分配无线电资源的方法
公开(公告)号：KR1020080029912A
公开(公告)日：2008-04-03
申请号：KR1020070098307
申请日：2007-09-28
CPC classification number: H04W24/10 , H04W72/0406 , H04W72/1226 , H04W72/1247 , H04W72/1273
Abstract: A channel state information transmission method in a user terminal of a wideband mobile communication system and a wireless resource allocation method in a base station thereof are provided to enable the base station to determine priority according to a lot of channel state information sent from each user terminal and to allocate wireless resources to each user terminal, thereby easily reducing data size of the channel state information as decreasing complexity of priority determination. A user terminal(32) measures a channel state of downlink. A base station(31) converts the measured channel state value of the downlink into a channel state information report type for each subcarrier group(302). The user terminal generates channel state information according to the channel state value converted into the channel state information report type(304). The user terminal transmits the generated channel state information to the base station(306).
Abstract translation: 提供宽带移动通信系统的用户终端中的信道状态信息发送方法及其基站中的无线资源分配方法，使基站能够根据从各用户终端发送的多个信道状态信息来确定优先级 并且向每个用户终端分配无线资源，从而容易地减少信道状态信息的数据大小作为优先级确定的降低的复杂度。 用户终端（32）测量下行链路的信道状态。 基站（31）将所测量的下行链路状态值转换为每个子载波组（302）的信道状态信息报告类型。 用户终端根据转换为信道状态信息报告类型的信道状态值来生成信道状态信息（304）。 用户终端将生成的信道状态信息发送到基站（306）。
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公开(公告)号：KR1020070038425A
公开(公告)日：2007-04-10
申请号：KR1020060097129
申请日：2006-10-02
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0072 , H04L1/0061
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 MBMS 수신 시스템에 있어서의 에러 정정 방법 및 장치에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
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 있음.
3. 발명의 해결방법의 요지
본 발명은, MBMS(Multimedia Broadcast/Multicast Service) 수신 시스템에 있어서 수신 데이터의 에러를 정정하기 위한 MBMS 단말 장치로서, 상기 수신 데이터로부터 생성된 PDU(Protocol Data Unit)를 입력받고, 상기 PDU를 조합하여 SDU(Service Data Unit)를 생성하고, 상기 SDU의 생성에 사용된 PDU에 에러가 발생하였는지 여부를 표시하여 출력하는 RLC(Radio Link Control) 프로토콜 처리 수단 및 상기 SDU를 입력받아 전달하기 위한 PDCP(Packet Data Convergence Protocol) 처리 수단을 포함함.
4. 발명의 중요한 용도
본 발명은 MBMS 시스템 등에 이용됨.
MBMS, Protocol Data Unit(PDU), Service Data Unit(SDU),
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