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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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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。
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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）。
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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。
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公开(公告)号：KR1020080009639A
公开(公告)日：2008-01-29
申请号：KR1020070072159
申请日：2007-07-19
CPC classification number: H04L7/0008 , H04L27/2656 , H04L27/2666
Abstract: A method for transmitting a downlink frame in a wireless communication system is provided to improve cell search performance by placing main and sub synchronization channels adjacent to the boundary of a sub frame. A method for transmitting a downlink frame in a wireless communication system includes the step of: generating a first synchronization channel by inserting a first guard interval into a first synchronization channel signal; generating a second synchronization channel by inserting a second guard interval into a second synchronization channel signal; arranging the first synchronization channel in the downlink frame to place the first synchronization channel at the front of the boundary of the sub frame; and arranging the second synchronization channel in the downlink frame to place the second synchronization channel at the rear of the boundary of the sub frame. One of the first and second synchronization channels is a main synchronization channel, and the other is a sub synchronization channel.
Abstract translation: 提供了一种用于在无线通信系统中发送下行链路帧的方法，通过将主和副同步信道放置在子帧的边界附近来提高小区搜索性能。 一种用于在无线通信系统中发送下行链路帧的方法包括以下步骤：通过将第一保护间隔插入到第一同步信道信号中来产生第一同步信道; 通过将第二保护间隔插入到第二同步信道信号中来产生第二同步信道; 在下行链路帧中布置第一同步信道以将第一同步信道置于子帧的边界的前面; 以及在所述下行链路帧中布置所述第二同步信道以将所述第二同步信道置于所述子帧的边界的后面。 第一和第二同步信道中的一个是主同步信道，另一个是子同步信道。
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公开(公告)号：KR1020080005104A
公开(公告)日：2008-01-10
申请号：KR1020070067506
申请日：2007-07-05
IPC: H04B7/26
CPC classification number: H04L27/2634 , H04B7/022 , H04L27/2613 , H04L27/2655 , H04B7/0615
Abstract: A method and an apparatus for transmitting a signal in a communication system are provided to reduce the reception error of the same signal in a terminal by applying weight patterns different from each other to a common signal. A method for transmitting a signal in a communication system comprises the following steps of: setting a weight according to a weight pattern determined by the transmission time of a common signal and a pattern number allocated to a first BS(Base Station); multiplying the common signal by the weight to generate a transmission signal(S420); and transmitting the transmission signal(S440). The common signal is generated by a sequence allocated in common to the first BS and a second BS.
Abstract translation: 提供一种用于在通信系统中发送信号的方法和装置，用于通过对公共信号施加彼此不同的加权模式来减少终端中相同信号的接收错误。 一种用于在通信系统中发送信号的方法包括以下步骤：根据由公共信号的发送时间和分配给第一BS（基站）的模式号确定的权重模式来设置权重; 将公共信号乘以权重以产生发送信号（S420）; 并发送发送信号（S440）。 公共信号由对第一BS和第二BS共同分配的序列产生。
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