-
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）。
-
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。
-
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。
-
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）。
-
Patent Agency Ranking
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。
-
公开(公告)号：KR1020080035992A
公开(公告)日：2008-04-24
申请号：KR1020070105751
申请日：2007-10-19
CPC classification number: H04J11/0069 , H04B7/2643 , H04L27/2662 , H04L27/2678
Abstract: Cell search and BCH(Broadcasting Channel) demodulation methods for an OFDM(Orthogonal Frequency Division Multiplexing) system are provided to obtain the synchronization with low complexity and to offer a simple receiver structure without blind detection due to time ambiguity. A terminal obtains a sync block synchronization and the first sync channel sequence number by the first sync channel symbol included in the received frame(S1200). The boundary and scrambling code group is detected by the sync block synchronization and the second sync channel symbol included in the frame received by the terminal(S1210). A process for obtaining the scrambling code is performed by the first sync channel sequence number and the scrambling code group(S1220). A BCH included in the frame received by the terminal is modulated by the scrambling code so that the information of the wireless communication system is obtained. In the boundary and scrambling code group detection process, the number of BCH antennas or the length of CP(Cyclic Prefix) are obtained.
Abstract translation: 提供用于OFDM（正交频分复用）系统的小区搜索和BCH（广播信道）解调方法以获得低复杂度的同步，并且由于时间模糊性而提供简单的接收机结构而不会盲目检测。 终端通过接收到的帧中包括的第一同步信道符号获得同步块同步和第一同步信道序列号（S1200）。 通过由终端接收的帧中包含的同步块同步和第二同步信道符号来检测边界和扰码组（S1210）。 通过第一同步信道序列号和扰码组来执行用于获得扰码的处理（S1220）。 由终端接收的帧中包括的BCH被扰频调制，从而获得无线通信系统的信息。 在边界和扰码组检测过程中，获得BCH天线的数量或CP的长度（循环前缀）。
-
公开(公告)号：KR1020080033055A
公开(公告)日：2008-04-16
申请号：KR1020070081612
申请日：2007-08-14
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2655 , H04J3/0638 , H04L27/2628 , H04W56/00 , H04W84/042
Abstract: An apparatus and a method for synchronization channel transmission in a wireless communication system are provided to increase diversity gain by transmitting two main synchronization channel signals with different beams and using a precoder vector for each frame. A method for synchronization channel transmission includes the steps of: multiplexing a plurality of main synchronization channel signals(S210); and multiplying different first plural precoding vectors by the main synchronization channel signals. The first precoding vectors are perpendicular to each other. The first precoding vectors are different from second precoding vectors used at the time of precoding the main synchronization channel signals at a previous synchronization channel signal transmission time. The first precoding vectors are perpendicular to the second precoding vectors. The precoding vectors are different from third plural precoding vectors used at the time of precoding the main synchronization channel signal in a previous frame.
Abstract translation: 提供了一种用于在无线通信系统中同步信道传输的装置和方法，以通过用不同波束发送两个主同步信道信号并使用每帧的预编码器向量来增加分集增益。 一种用于同步信道传输的方法包括以下步骤：复用多个主同步信道信号（S210）; 以及将不同的第一多个预编码矢量乘以主同步信道信号。 第一预编码矢量彼此垂直。 第一预编码矢量不同于在先前同步信道信号传输时间对主同步信道信号进行预编码时使用的第二预编码矢量。 第一预编码矢量垂直于第二预编码矢量。 预编码矢量不同于在前一帧中预编码主同步信道信号时使用的第三多个预编码矢量。
-
公开(公告)号：KR1020080012151A
公开(公告)日：2008-02-11
申请号：KR1020070072450
申请日：2007-07-19
CPC classification number: H04B7/0604 , H04W74/0833 , H04L27/2636 , H04W48/08
Abstract: A random access method using heterogeneous frequency hopping patterns between cells and a mobile communication device for performing the method are provided to use hopping patterns when an RACH(Random Access Channel) of an MS(Mobile Station) is transmitted, thereby preventing collision of random access bursts between neighboring cells as obtaining a diversity gain in a frequency domain. A receiver(220) receives RACH information on a cell group to which an MS(200) belongs from a base station. A channel allocator(230) allocates channels to RACH bursts based on the RACH information. A transmitter(260) transmits the RACH bursts by the allocated channels. The allocator(230) comprises as follows. A controller(240) extracts random access hopping patterns set in the cell group from the transmitted burst information, and selects sub channels to which the bursts are to be transmitted according to the extracted patterns. An OFDMA(Orthogonal Frequency Division Multiple Access) modulator(250) allocates the sub channels to the bursts, and OFDMA-modulates the bursts.
Abstract translation: 提供了一种在小区之间使用异构跳频模式的随机接入方法和用于执行该方法的移动通信设备，以便在发送MS（移动台）的RACH（随机接入信道）时，使用跳频模式，从而防止随机接入的冲突 在相邻小区之间突发，以获得频域中的分集增益。 接收机（220）从基站接收关于MS（200）所属的小区组的RACH信息。 信道分配器（230）基于RACH信息将信道分配给RACH突发。 发射机（260）通过所分配的信道发送RACH脉冲串。 分配器（230）包括如下。 控制器（240）从发送的脉冲串信息中提取在单元组中设置的随机接入跳变模式，并且根据提取的模式选择要发送脉冲串的子信道。 OFDMA（正交频分多址）调制器（250）将子信道分配给脉冲串，并且OFDMA调制脉冲串。
-
公开(公告)号：KR1020080010344A
公开(公告)日：2008-01-30
申请号：KR1020070074705
申请日：2007-07-25
Applicant: 한국전자통신연구원
CPC classification number: H04W56/001 , H04J11/0069 , H04J11/0093 , H04L5/0037 , H04L5/005 , H04L5/0053 , H04L27/2613 , H04L27/2655 , H04L27/2675 , H04W36/0061 , H04W36/08 , H04W56/00 , H04J11/0073 , H04J11/0076
Abstract: A forward link frame transmission method, a cell search method, an apparatus using the same and a forward link frame structure are provided to obtain low complexity and to reduce the cell search time of a mobile station in an OFDM(Orthogonal Frequency Division Multiplexing) cellular system. A forward link frame transmission method includes the steps of: generating a frame composed of a plurality of sync blocks; and transmitting the frame through a forward link. The frame includes a primary synchronization channel sequence to provide sync block timing information and a plurality of secondary synchronization channel sequences to provide frame timing information. A cell identifier(40) is specified by the combination of the primary synchronization channel sequence and a hopping codeword specified by the plurality of second synchronization channel sequences.
Abstract translation: 提供前向链路帧发送方法，小区搜索方法，使用该方法的装置和前向链路帧结构，以获得低复杂度并减少移动台在OFDM（正交频分复用）蜂窝中的小区搜索时间 系统。 前向链路帧传输方法包括以下步骤：产生由多个同步块组成的帧; 并通过前向链路发送帧。 该帧包括提供同步块定时信息的主同步信道序列和多个次同步信道序列以提供帧定时信息。 小区标识符（40）由主同步信道序列和由多个第二同步信道序列指定的跳频码字的组合来指定。
-
-
-
-
-
-
-
-
-
Search Results
351
records
(took 0.032 seconds)
