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公开(公告)号：KR1020080112998A
公开(公告)日：2008-12-26
申请号：KR1020080058985
申请日：2008-06-23
CPC classification number: H04W72/0406 , H04J13/0048 , H04J13/0062 , H04J13/18 , H04L1/0026 , H04L1/003 , H04L1/0031 , H04L1/1607 , H04L1/1692 , H04L1/1861 , H04L5/0017 , H04L23/02 , H04W72/0466 , H04L5/0053 , H04L27/2611
Abstract: A method for transmitting control information using code sequence of CDM(Code Division Multiplexing) in wireless communications system is provided to efficiently classify a plurality of terminals by using a spreading code using a frequency axis and a time axis. A method for transmitting control information using code sequence of CDM in wireless communications system comprises the following steps: a step for determining conditional information inside a cell; a step for transmitting code sequence information to a plurality of terminals according to a determined conditional information inside the cell; and a step for selecting one from among a plurality of time domain biorthogonal sequences having a different length according to the determined conditional information inside the cell.
Abstract translation: 提供一种使用无线通信系统中的CDM（码分多路复用）码序列发送控制信息的方法，通过使用频率轴和时间轴的扩展码对多个终端进行有效的分类。 一种用于在无线通信系统中使用CDM的码序列发送控制信息的方法包括以下步骤：确定小区内的条件信息的步骤; 根据所述小区内的确定的条件信息向多个终端发送码序列信息的步骤; 以及根据小区内的确定的条件信息从具有不同长度的多个时域双正交序列中选择一个的步骤。
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182.发明公开
公开(公告)号：KR1020080110175A
公开(公告)日：2008-12-18
申请号：KR1020070058588
申请日：2007-06-14
CPC classification number: H04W72/044 , H04B7/0417 , H04B7/0452 , H04B7/061 , H04B7/0623 , H04L1/1692 , H04L1/1812 , H04L1/1861 , H04L5/0016 , H04L5/0023 , H04L5/0055 , H04L27/18
Abstract: A method for transmitting ACK/NACK(ACKnowledgement/Negative ACKnowledgement) supporting HARQ(Hybrid Automatic Repeat reQuest) in wireless communications system for multi user MIMO(Multi Input Multi Output) is provided to increase efficiency of down link wireless resource by suggesting an efficient ACK/NACK channel transmitting method. A method for transmitting ACK/NACK supporting HARQ in wireless communications system for multi user MIMO transmits an identical down link code about two mobile station using an identical upward link resource block and I/Q(real part/imaginary part) multiplexing ACK/NACK. The upward link and down link is cellular system based an orthogonal division multiplexing method.
Abstract translation: 提供了一种支持用于多用户MIMO（多输入多输出）的无线通信系统中的HARQ（混合自动重复请求）的ACK / NACK（确认/否定确认））的方法，以通过提出有效的ACK来提高下行链路无线资源的效率 / NACK信道发送方式。 用于在多用户MIMO的无线通信系统中发送支持HARQ的ACK / NACK的方法使用相同的向上链路资源块和I / Q（实部/虚部）复用ACK / NACK来发送关于两个移动台的相同的下行链路码。 上行链路和下行链路是基于蜂窝系统的正交分割复用方法。
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公开(公告)号：KR1020080097360A
公开(公告)日：2008-11-05
申请号：KR1020080041067
申请日：2008-05-01
CPC classification number: H04L5/0055 , H04B7/2628 , H04J13/0062 , H04L1/14
Abstract: A method for transmitting/receiving ACK/NAK control information and an apparatus therefor are provided to increase efficiency when a terminal transmits/receives the ACK/NAK control information to/from a base station to inform the base station whether the terminal successfully demodulates data or not. A method for transmitting ACK/NAK control information includes the following steps. Mutual orthogonal code sequences are respectively assigned to the frequency axis and time axis of a resource block which the terminal uses. The first and second signal groups are generated, wherein each group has N signals orthogonal to each other as being adjacent to each other on the time axis of the resource block. The signal groups include at least one signal overlappingly and transmit the first and second signal groups to the base station. A control signal is transmitted to the base station.
Abstract translation: 提供一种用于发送/接收ACK / NAK控制信息的方法及其装置，用于当终端向/从基站发送/接收ACK / NAK控制信息以通知基站终端是否成功解调数据时提高效率 不。 发送ACK / NAK控制信息的方法包括以下步骤。 相互正交码序列分别分配给终端使用的资源块的频率轴和时间轴。 产生第一和第二信号组，其中每个组具有在资源块的时间轴上彼此相邻的N个信号彼此正交。 信号组重叠地包括至少一个信号，并将第一和第二信号组发送到基站。 控制信号被发送到基站。
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公开(公告)号：KR1020080087646A
公开(公告)日：2008-10-01
申请号：KR1020080004571
申请日：2008-01-15
CPC classification number: H04L5/0055 , H04L5/0007 , H04L5/0057 , H04L27/183 , H04L27/2602 , H04L27/2614 , H04L27/2628
Abstract: An apparatus and a method for transmitting radio signals is provided to increase the volume of data substantially to be uplinked by lowering the PAPR(Peak to Average Power Ratio) of a control signal to be uplinked and reducing the number of pilots. An apparatus for transmitting radio signals comprises a channel encoding part(120), a digital modulation part(130), a differential phase modulation part(131), a vector multiplication part(150), an IFFT(Inverse Fast Fourier Transform) part(160), and a transmitting part(180). The channel encoding part performs channel encoding for the bit information of an Ack/Nack signal or a CQI(Channel Quality Indicator) signal. The digital modulation part performs digital modulation for the channel-encoded bit information and creates a digital modulation symbol. The differential phase modulation part carries out differential phase modulation for the digital modulation symbol and creates a phase-modulated symbol. The vector multiplication part applies codes to the phase-modulated symbol and creates a plurality of code symbols. The IFFT part performs IFFT for the code symbols and creates a time-domain signal. The transmitting part transmits the time-domain signal through an uplink.
Abstract translation: 提供用于发送无线电信号的装置和方法，通过降低要上行的控制信号的PAPR（峰均功率比）并减少导频数量来增加基本上上行链路的数据量。 用于发送无线电信号的装置包括信道编码部分（120），数字调制部分（130），差分相位调制部分（131），向量乘法部分（150），IFFT（快速傅里叶逆变换）部分 160），以及发送部（180）。 信道编码部分对Ack / Nack信号或CQI（信道质量指示符）信号的比特信息执行信道编码。 数字调制部分对信道编码比特信息进行数字调制，并产生数字调制符号。 差分相位调制部分对数字调制符号执行差分相位调制，并产生相位调制符号。 向量乘法部件将代码应用于相位调制符号并产生多个代码符号。 IFFT部分为代码符号执行IFFT，并创建时域信号。 发送部通过上行链路发送时域信号。
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公开(公告)号：KR1020080072497A
公开(公告)日：2008-08-06
申请号：KR1020070074433
申请日：2007-07-25
IPC: H04B7/26
CPC classification number: H04B7/2612 , H04W74/0833
Abstract: A broadcasting signal transmitting method and a random access preamble transmitting method are provided to enable a base station to transmit an index of a message map suitable for cell characteristics to a mobile station and enable the mobile station to configure a random access preamble by using a message map which is selected by the base station to be suitable for a current cell. An index of a message map corresponding to characteristics of a cell covered by a base station(200) among plural message maps is corresponded. Each message map is corresponded to characteristics of one or more cells. The base station periodically transmits a BCH(Broadcasting Channel) signal as a broadcasting signal(S101). A mobile station(100) transmits a random access preamble by using a message map corresponding to a message map index included in the BCH signal(S102).
Abstract translation: 提供广播信号发送方法和随机接入前导码发送方法，使基站能够向移动台发送适用于小区特性的消息映射的索引，并使得移动台可以通过使用消息来配置随机接入前导码 由基站选择以适合当前小区的映射。 与多个消息映射中的基站（200）所覆盖的小区的特性对应的消息映射的索引对应。 每个消息映射对应于一个或多个单元的特性。 基站周期性地发送作为广播信号的BCH（广播信道）信号（S101）。 移动台（100）通过使用与包含在BCH信号中的消息映射索引对应的消息映射来发送随机接入前导码（S102）。
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Patent Agency Ranking
公开(公告)号：KR1020080067944A
公开(公告)日：2008-07-22
申请号：KR1020070072176
申请日：2007-07-19
CPC classification number: H04B7/0802 , H04B7/0862 , H04B7/2603
Abstract: An antenna selection method during a random access process is provided to enable an MS(Mobile Station) to transmit an uplink message by using an antenna after receiving antenna information selected from a BS(Base Station), thereby improving the reliability of the uplink message received in the BS. A random access preamble is transmitted through antenna switching by using plural antennas(S101). An index corresponding to one of the plural antennas is received from a BS(300)(S102). An uplink message is transmitted by using the one antenna(S103). The BS which receives the random access preamble selects the one antenna by measuring receiving signal strength for each antenna, which is included in the plural antennas.
Abstract translation: 提供随机接入过程中的天线选择方法，以便在接收到从BS（基站）中选择的天线信息之后，通过使用天线使MS（移动站）发送上行链路消息，从而提高接收到的上行链路消息的可靠性 在BS。 通过使用多个天线通过天线切换发送随机接入前导码（S101）。 从BS（300）接收与多个天线中的一个相对应的索引（S102）。 通过使用一个天线发送上行链路消息（S103）。 接收随机接入前导码的BS通过测量包含在多个天线中的每个天线的接收信号强度来选择一个天线。
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公开(公告)号：KR1020080065562A
公开(公告)日：2008-07-14
申请号：KR1020080002628
申请日：2008-01-09
CPC classification number: H04L5/0055 , H04W72/0453
Abstract: A method for transmitting and receiving an ACK(Acknowledgement)/ NAK(Non-acknowledgement) signal in a wireless communication system is provided to reduce interference and a noise by allocating a sequence, which is perpendicular to each other in a time axis, to a terminal. A method for transmitting and receiving an ACK/NAK signal in a wireless communication system includes the steps of: allocating a first resource block and a second resource block of a resource block in a time axis to one terminal at a time axis sequence generation unit(1110), wherein the resource block occupies one symbol in the time axis and occupies N sub-carriers in a frequency axis, N is an even number and is larger than two; allocating the sequence perpendicular to N sub-frequency in the frequency axis to the terminal at a frequency sequence generation unit(1120); if the terminal receives an ACK/NAK bit of a code word having a first binary value, transmitting the sequence with the first resource block, and if the ACK/NAK bit is a second binary value, transmitting the sequence with the second resource block.
Abstract translation: 提供一种用于在无线通信系统中发送和接收ACK（确认）/ NAK（非确认）信号的方法，以通过将在时间轴上彼此垂直的序列分配到一个时间轴来减少干扰和噪声 终奌站。 一种用于在无线通信系统中发送和接收ACK / NAK信号的方法包括以下步骤：在时间轴序列生成单元将时间轴上的资源块的第一资源块和第二资源块分配给一个终端（ 1110），其中所述资源块在时间轴上占据一个符号并占据频率轴中的N个子载波，N是偶数并且大于2; 在频率序列生成单元（1120）将频率轴上垂直于N个子频率的序列分配给终端; 如果终端接收到具有第一二进制值的码字的ACK / NAK位，则发送具有第一资源块的序列，并且如果ACK / NAK位是第二二进制值，则用第二资源块发送序列。
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公开(公告)号：KR100836623B1
公开(公告)日：2008-06-10
申请号：KR1020070012571
申请日：2007-02-07
Applicant: 한국전자통신연구원
Abstract: 자원 블록을 통한 데이터 전송 장치가 개시된다.
데이터 전송 장치는 자원 블록을 위한 데이터에 대해 채널 인코딩을 수행하고, 인터리빙하며, 디지털 변조를 수행한다. 그리고 데이터 전송 장치는 디지털 변조된 데이터에서 자원 블록에 포함되어야 하는 동기 채널 또는 방송 채널의 데이터 만큼을 천공하고 해당 자원 블록에 배치한다. 데이터 전송 장치는 복수의 자원 블록을 다중화하여 하향링크 신호를 생성한 후 데이터 수신 장치에 전송한다.
OFDM, 물리계층 RB, Puncturing, 동기 채널, BCH 채널-
公开(公告)号：KR1020080047293A
公开(公告)日：2008-05-28
申请号：KR1020070120077
申请日：2007-11-23
Applicant: 한국전자통신연구원
CPC classification number: H04W56/0045 , H04J11/0069 , H04W56/001
Abstract: An Inter-cell code allocated forward sync signal transmitting method and a cell detecting method using a forward sync signal in an orthogonal frequency division multiplexing cellular system are provided to divide the transmission point of time of sync codes by cell or BS in a WCDMA(Wideband Code Division Multiple Access) system by using a GPS(Global Positioning System), thereby minimizing the confusion of the sync codes between cells or BSs. A forward sync signal transmitting method comprises the following steps of: generating a frame according to the frame timing of a predetermined unit by using the same external clock in each BS(Base Station) on an OFDM(Orthogonal Frequency Division Multiplexing) cellular system(S600); and allocating different offsets to the frame of each BS adjacent to each other of which the forward link common channels included in the frame are not duplicated by using the external frame and transmitting the frame(S610).
Abstract translation: 分配正交频分复用蜂窝系统中的正向同步信号发送方法和使用正向同步信号的小区检测方法的小区间码用于在WCDMA（宽带）中划分小区或BS的同步码的发送时间点 码分多址）系统，通过使用GPS（全球定位系统），从而最小化小区或BS之间的同步码的混淆。 正向同步信号发送方法包括以下步骤：通过在OFDM（正交频分复用）蜂窝系统（S600）上的每个BS（基站）中使用相同的外部时钟，根据预定单元的帧定时生成帧 ）; 并且通过使用外部帧并发送帧来分配不同偏移量到彼此相邻的每个BS的帧，其中包括在帧中的前向链路公共信道不被复制（S610）。
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公开(公告)号：KR1020080039802A
公开(公告)日：2008-05-07
申请号：KR1020070110028
申请日：2007-10-31
CPC classification number: H04L27/261 , H04B7/2621 , H04L27/2662 , H04L27/2678
Abstract: A method for transmitting downlink frames and a recording medium for storing downlink frames are provided to demodulate a BCH(Broadcast CHannel) coherently by using channel state information to acquire an SCH(Synchronous CHannel) as the SCH and the BCH are adjacently arranged each other. A downlink frame comprises a plurality of subframes. At least one among the subframes comprises the first symbol interval, the second symbol interval, and the third symbol interval. The first symbol interval comprises a reference signal which is used to demodulate unicast data. The reference signal is arranged at a common frequency band. The second symbol interval comprises a BCH signal which is arranged at the common frequency band. The third symbol interval comprises an SCH signal which is arranged at the common frequency band. Either the second symbol interval or the third symbol interval comprises a reference signal which is arranged at the other except the common frequency band.
Abstract translation: 提供一种用于发送下行链路帧的方法和用于存储下行链路帧的记录介质，以通过使用信道状态信息来相干地解调BCH（广播信道），以获取SCH（同步信道）作为SCH，并且BCH彼此相邻布置。 下行链路帧包括多个子帧。 子帧中的至少一个包括第一符号间隔，第二符号间隔和第三符号间隔。 第一符号间隔包括用于解调单播数据的参考信号。 参考信号被布置在共同的频带上。 第二符号间隔包括布置在公共频带的BCH信号。 第三符号间隔包括布置在公共频带的SCH信号。 第二符号间隔或第三符号间隔包括布置在除公共频带之外的另一符号间隔的参考信号。
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