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公开(公告)号：KR1020090006734A
公开(公告)日：2009-01-15
申请号：KR1020080061429
申请日：2008-06-27
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W56/00 , H04J11/0069 , H04J11/0076 , H04L25/03866 , H04L27/2613 , H04L27/2655 , H04L27/2656 , H04L27/2657 , H04L27/2662
Abstract: A method for generating a downlink frame and a cell search method are provided to improve the cell search performance by making a short sequence into a scrambling sequence. A sequence generation part produces a plurality of short sequences and a plurality of scrambling sequence for reducing the neighboring cell interference, and then transmits the generated scrambling sequence to a synchronous signal generator(S510). The synchronous signal generator produces the secondary synchronous signal by using the short sequences and scrambling sequence received from the sequence generation part(S520). A frequency mapping part maps the secondary synchronous signal and transmission traffic data to the time and frequency domains to generate the frame of a downlink signal(S530). An OFDM transmission unit receives the frame of the downlink signal, and then transmits the frame through a transmission antenna(S540).
Abstract translation: 提供了一种用于生成下行链路帧和小区搜索方法的方法，通过将短序列进入加扰序列来提高小区搜索性能。 序列生成部分产生多个短序列和多个加扰序列，用于减少相邻小区干扰，然后将生成的加扰序列发送到同步信号发生器（S510）。 同步信号发生器通过使用从序列生成部分接收的短序列和加扰序列产生辅同步信号（S520）。 频率映射部分将次同步信号和传输业务数据映射到时域和频域以生成下行链路信号的帧（S530）。 OFDM发送单元接收下行链路信号的帧，然后通过发送天线发送帧（S540）。
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公开(公告)号：KR1020090004780A
公开(公告)日：2009-01-12
申请号：KR1020080065593
申请日：2008-07-07
CPC classification number: H04L27/2655 , H04L27/2602 , H04W56/00
Abstract: A method for mapping the orthogonal code within the secondary synchronization channel symbol is provided to map two short sequence numbers in efficiently by preventing the generation of collision. A binary code is mapped within the secondary synchronization channel symbol by using the non-binary code. A second non-binary code is obtained by cyclic-shifting the non-binary code. The minimum hamming distance between all coding words of the non-binary code and the second non-binary code have to be the arbitrary value or greater. The length of the non-binary code is same as those of the number of per frame binary codes. The non-binary code includes the primary synchronization channel and the secondary synchronization channel in the down link. In the down link, the secondary synchronization channel symbol is transmitted per 10 msec frame.
Abstract translation: 提供了用于映射次同步信道符号内的正交码的方法，以通过防止产生碰撞来有效地映射两个短序列号。 二进制代码通过使用非二进制代码映射在辅同步通道符号内。 通过循环移位非二进制代码获得第二个非二进制代码。 非二进制码的所有编码字和第二非二进制码之间的最小汉明距离必须是任意值或更大。 非二进制码的长度与每帧二进制码的数量相同。 非二进制码包括下行链路中的主同步信道和辅同步信道。 在下行链路中，每10毫秒帧发送次同步信道符号。
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公开(公告)号：KR1020080104936A
公开(公告)日：2008-12-03
申请号：KR1020070113705
申请日：2007-11-08
Abstract: A method for transmitting and receiving broadcast channel information is provided to transmit all the same system frame values transmitted within an update period of the broadcast channel information by using different bit mapping patterns, thereby obtaining SFN even though a receiver receives only one coding block. First broadcast channel information including a first system frame value is transmitted by using a first bit mapping pattern in a first frame. The first broadcast channel information is transmitted by using the first and second bit mapping patterns in a second frame.
Abstract translation: 提供了一种用于发送和接收广播信道信息的方法，以便通过使用不同的比特映射模式来发送在广播信道信息的更新周期内发送的所有相同的系统帧值，从而即使接收方只接收一个编码块，也获得SFN。 通过使用第一帧中的第一比特映射模式来发送包括第一系统帧值的第一广播频道信息。 通过使用第二帧中的第一和第二比特映射模式来发送第一广播频道信息。
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公开(公告)号：KR1020080102927A
公开(公告)日：2008-11-26
申请号：KR1020070073103
申请日：2007-07-20
IPC: H03M13/27
CPC classification number: H03M13/276 , H03M13/6502 , H03M13/6561 , H03M13/6566
Abstract: An apparatus and a method for generating an address of a data interleaver/deinterleaver remove an address generation error of the deinterleaver by generating the address by an address generation polynomial of the interleaver. An address generation device of an interleaver includes an exponent decision unit, a coefficient calculation unit, and an address generation unit. The exponent decision unit(210) calculates a prime factor comprising the size of a bit and decides the exponent according to the number of the prime factor. The coefficient calculation unit(230) calculates the coefficient of the address generation polynomial of the interleaver base on the prime factor and the exponent. The address generation unit(250) generates the address by the polynomial using the coefficient.
Abstract translation: 用于产生数据交织器/解交织器的地址的装置和方法通过交织器的地址生成多项式生成地址来消除解交织器的地址生成错误。 交织器的地址产生装置包括指数判定单元，系数计算单元和地址生成单元。 指数判定单元（210）计算包含位的大小的素数因子，并根据素数因子的数量来决定指数。 系数计算单元（230）根据素数因子和指数计算交织器的地址生成多项式的系数。 地址生成单元（250）使用该系数通过多项式生成地址。
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公开(公告)号：KR1020080097535A
公开(公告)日：2008-11-06
申请号：KR1020070042512
申请日：2007-05-02
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2695 , H04L25/08 , H04L27/01 , H04L27/2636 , H04L2201/04
Abstract: An apparatus and a method for removing intersymbol interference in a mobile communication system remove intersymbol interference element between reception signals by using a frequency domain equalizer. A first equalizer(200) estimates a channel from the received signal and performs equalization for the received signal according to the estimated channel, and outputs a first signal. A signal processor(300) removes intersymbol interference element from the first signal and recovers the first signal as a transmission signal. A second equalizer(400) generates a second signal from the restored transmission signal and extracts the intersymbol interference element of the first signal from the second signal and transmits the extracted signal to the signal processor.
Abstract translation: 移动通信系统中移除码间干扰的装置和方法通过使用频域均衡器去除接收信号之间的符号间干扰元素。 第一均衡器（200）从接收信号估计信道，并根据估计的信道对接收到的信号进行均衡，并输出第一信号。 信号处理器（300）从第一信号中去除符号间干扰元素，并将第一信号作为发送信号进行恢复。 第二均衡器（400）从恢复的发送信号生成第二信号，并从第二信号中提取第一信号的符号间干扰元素，并将提取的信号发送到信号处理器。
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Patent Agency Ranking
公开(公告)号：KR1020080087658A
公开(公告)日：2008-10-01
申请号：KR1020080016820
申请日：2008-02-25
CPC classification number: H04L27/20 , H04L1/1607 , H04L27/227
Abstract: A method for transmitting and receiving bit information is provided to improve the performance of a system by using a binary quadrature phase shift key. A method for transmitting and receiving bit information includes the steps of: generating bit information corresponding to a signal to be transmitted(S11); selecting two time region codes of a plurality of time region codes(S12); generating a complex symbol corresponding to the bit information using two time region codes(S14); and transmitting the bit information using the complex symbol(S20). The complex symbol generation step includes the steps of: generating four time region codes by phase-modulating two time region codes; and generating a complex symbol by selecting one of four time region codes in response to the bit information.
Abstract translation: 提供了一种用于发送和接收比特信息的方法，以通过使用二进制正交相移键提高系统的性能。 一种发送和接收比特信息的方法包括以下步骤：产生与要发送的信号相对应的比特信息（S11）; 选择多个时区代码的两个时区码（S12）; 使用两个时区代码生成与比特信息对应的复数符号（S14）; 以及使用所述复合符号发送所述位信息（S20）。 复合符号生成步骤包括以下步骤：通过对两个时区代码进行相位调制来产生四个时区码; 以及通过响应于位信息选择四个时区代码之一来生成复符号。
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公开(公告)号：KR1020080079577A
公开(公告)日：2008-09-01
申请号：KR1020070118511
申请日：2007-11-20
Applicant: 한국전자통신연구원
CPC classification number: H04L1/0618 , H04B7/0613 , H04B7/0697 , H04L1/0031 , H04L27/2662
Abstract: A signal transmission method is provided to be capable of magnifying a diversity gain within a transmission time interval of broadcasting channel information by applying a cyclic delay diversity method to the broadcasting channel information, as efficiently removing interference. Plural cyclic delay values individually corresponding to plural transmission antennas are set(S201-S207). The plural cyclic delay values are individually applied to plural broadcasting channel symbols(S209). The plural broadcasting channel symbols are transmitted through the plural transmission antennas(S211). The cyclic delay values are determined according to time assigned with the broadcasting channel symbols.
Abstract translation: 提供了一种信号传输方法，其能够通过对广播信道信息应用循环延迟分集方法来扩大广播信道信息的传输时间间隔内的分集增益，从而有效地去除干扰。 分别对应于多个发送天线的多个循环延迟值被设定（S201〜S207）。 多个循环延迟值分别应用于多个广播信道符号（S209）。 通过多个发送天线发送多个广播信道符号（S211）。 根据分配有广播频道符号的时间确定循环延迟值。
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公开(公告)号：KR1020080071065A
公开(公告)日：2008-08-01
申请号：KR1020070132635
申请日：2007-12-17
CPC classification number: H04B1/707 , H04B7/02 , H04L5/0053 , H04L27/2626
Abstract: A transmission diversity method for a forward link channel in a wireless communication system and a signal processing method are provided to improve transmission diversity for an MC-CDMA(Multi-Carrier Code Division Multiple Access) type channel in an OFDM(Orthogonal Frequency Division Multiplexing)-based downlink by being used to ACK/NACK channels. Predetermined different output symbols are generated from plural input symbols at one random modulation symbol interval(S900). Orthogonal codes are generated(S910). The output symbols are spread by using the orthogonal codes. The spread output symbols are crossed together as being combined, and the combined output symbols are outputted to each transmission path.
Abstract translation: 提供了一种用于无线通信系统中的前向链路信道的传输分集方法和信号处理方法，以改善OFDM（正交频分复用）中的MC-CDMA（多载波码分多址）类型信道的传输分集， 的下行链路用于ACK / NACK信道。 以一个随机调制符号间隔从多个输入符号生成预定的不同输出符号（S900）。 生成正交码（S910）。 输出符号通过使用正交码进行扩展。 扩展输出符号被组合在一起，并且组合的输出符号被输出到每个传输路径。
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109.发明公开
公开(公告)号：KR1020080066467A
公开(公告)日：2008-07-16
申请号：KR1020070003952
申请日：2007-01-12
CPC classification number: H04W74/08 , H04L5/0007 , H04L27/26 , H04L27/2672
Abstract: A method for multiplexing a random access preamble for a low speed mobile station and a random access preamble for a high speed mobile station based on a frequency axis is provided to reduce interference between mobile stations by multiplexing a random access band based on a frequency axis in an uplink of a cellular system. A method for multiplexing a random access preamble for a low speed mobile station and a random access preamble for a high speed mobile station based on a frequency axis includes the steps of: multiplexing a random access band using a preamble(100) which is used in a mobile station of a high speed, and a random access band using a preamble(110) which is used in a mobile station of a low speed on a frequency band. All of the mobile station of a high speed and the mobile station of a low speed perform easily a random access by allocating the different number of random access band using the preamble which is used in the mobile station of the high speed and random access band using the preamble which is used in the mobile station of the low speed to the cell based on the characteristics of the cell.
Abstract translation: 提供一种用于基于频率轴多路复用低速移动站的随机接入前同步码和高速移动台的随机接入前导码的方法，以通过基于频率轴的随机接入频带复用随机接入频带来减少移动台之间的干扰 蜂窝系统的上行链路。 一种用于低速移动台的随机接入前导码和基于频率轴的高速移动台的随机接入前同步码的方法包括以下步骤：使用前导码（100）多路复用随机接入频带 高速移动站和使用在频带上的低速移动站中使用的前导码（110）的随机接入频带。 所有高速移动站和低速移动站均通过使用在高速和随机接入频带的移动台中使用的前同步码分配不同数量的随机接入频带来轻松执行随机接入，所述前导码使用 基于小区的特性，在低速小区的移动站中使用的前导码。
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公开(公告)号：KR1020080053140A
公开(公告)日：2008-06-12
申请号：KR1020060125162
申请日：2006-12-08
Applicant: 한국전자통신연구원
CPC classification number: G06F17/142 , G06F7/38
Abstract: An FFT(Fast Fourier Transform) device for increasing a data processing capacity and a method thereof are provided to increase an FFT processing capacity without increasing hardware by installing and using additional memories in a time-division mode. First and second memory banks(330,340) store input data, and alternatively store FFT processed data. A data processor(370) performs FFT of the input data stored in the first and second memory banks. A first multiplexer(310) selects the input data and the processed data of the data processor alternatively depending on a selection control signal, and stores the selected data to the first memory bank. A second multiplexer(320) selects the input data and the processed data of the data processor alternatively depending on the selection control signal, and stores the selected data to the second memory bank. A third multiplexer(350) selects the input data stored in the first and second memory banks alternatively depending on the selection control signal, and transfers the selected data to the data processor. A fourth multiplexer(360) outputs the processed data stored in the first and second memory banks alternatively depending on the selection control signal. A controller outputs the selection control signal to the multiplexers.
Abstract translation: 提供了用于增加数据处理能力的FFT（快速傅里叶变换）装置及其方法，以通过在时分模式下安装和使用附加存储器来增加FFT处理能力而不增加硬件。 第一和第二存储体（330,340）存储输入数据，或者存储FFT处理的数据。 数据处理器（370）执行存储在第一和第二存储体中的输入数据的FFT。 第一多路复用器（310）根据选择控制信号交替地选择数据处理器的输入数据和处理数据，并将选择的数据存储到第一存储体。 第二多路复用器（320）根据选择控制信号选择数据处理器的输入数据和处理后的数据，并将选择的数据存储到第二存储体。 第三多路复用器（350）根据选择控制信号交替地选择存储在第一和第二存储体中的输入数据，并将选择的数据传送到数据处理器。 第四多路复用器（360）根据选择控制信号交替地输出存储在第一和第二存储体中的处理数据。 控制器将选择控制信号输出到多路复用器。
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