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公开(公告)号：KR1020080079630A
公开(公告)日：2008-09-01
申请号：KR1020080018027
申请日：2008-02-27
CPC classification number: H04L5/0055 , H04L1/004 , H04L5/0007 , H04L27/3494 , H04L61/1529 , H04L2025/0342
Abstract: A bit transmission method of different control channels is provided to perform modulation by binding bits of different control channels, or to perform an encoding process by binding the bits, and to send the bound bits, thereby allocating the same frequency, time, and code resources to two pieces of information. A base station performs a CRC(Cyclic Redundancy Check) function after receiving packet data(510) from a mobile station to check whether an error exists, and if so, the base station generates an NACK bit, and if not, the base station generates an ACK bit. The base station detects reception strength of the packet data to generate a power control symbol, and transmits a symbol(520) for combining the ACK/NACK bits with the power control symbol to a downlink.
Abstract translation: 提供不同控制信道的一种传输方式，通过绑定不同控制信道的比特来执行调制，或通过绑定比特来执行编码处理，并发送绑定的比特，从而分配相同的频率，时间和码资源 到两条信息。 基站在从移动台接收到分组数据（510）后执行CRC（循环冗余校验）功能，以检查是否存在错误，如果是，则基站生成NACK比特，如果不生成，则基站生成 一个ACK位。 基站检测分组数据的接收强度以生成功率控制符号，并将用于将ACK / NACK比特与功率控制符号组合的符号（520）发送到下行链路。
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公开(公告)号：KR1020080079629A
公开(公告)日：2008-09-01
申请号：KR1020080018026
申请日：2008-02-27
CPC classification number: H04J11/0069 , H04B1/70735 , H04B1/7083 , H04J13/0022
Abstract: A method for mapping a pilot sequence and a synchronization channel sequence is provided to improve cell search performance of a mobile station in a cellular system. A method for mapping a pilot sequence and a synchronization channel sequence includes the step of combining a pilot channel PN(Pseudo-Noise) code with a pilot channel orthogonal code to divide cell identifiers used in a mobile communication system. The cell identifiers are equally divided into cell groups. Primary synchronization channels(100-A,100-B) include information about the cell identifiers in the cell group. Secondary synchronization channels(101-A,101-B) include information about the cell group. A secondary synchronization code is allocated in correspondence to the pilot channel PN code.
Abstract translation: 提供了用于映射导频序列和同步信道序列的方法，以改善移动台在蜂窝系统中的小区搜索性能。 用于映射导频序列和同步信道序列的方法包括将导频信道PN（伪噪声）码与导频信道正交码组合以划分移动通信系统中使用的小区标识符的步骤。 小区标识符被分成小区组。 主同步信道（100-A，100-B）包括关于小区组中小区标识符的信息。 次同步信道（101-A，101-B）包括关于小区组的信息。 对应于导频信道PN码分配辅同步码。
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公开(公告)号：KR1020080076693A
公开(公告)日：2008-08-20
申请号：KR1020070115446
申请日：2007-11-13
CPC classification number: H04L27/2626 , H04B7/0617 , H04L1/004 , H04L1/0078 , H04L27/2647
Abstract: A method for transmitting/receiving a broadcast channel signal is provided to increase a signal to interference ratio in accordance with the time of a receiver through soft-combining by making a transmitter change a symbol mapping pattern applied whenever transmitting the broadcast channel signal. A method for transmitting/receiving a broadcast channel signal includes the steps of: at a symbol mapping unit(120), selecting a second symbol mapping pattern, which is different from a first symbol mapping pattern of a previous transmission period, as the mapping pattern of each broadcast channel symbol of the current transmission period; and at a radio frequency transmission unit(150), transmitting the broadcast channel signal based on the second symbol mapping pattern. The interval between a frequency used in the first symbol mapping pattern and a frequency used in the second symbol mapping pattern is larger than a coherence band of the channel to map the same broadcast channel symbol.
Abstract translation: 提供一种用于发送/接收广播信道信号的方法，用于通过使发射机改变每当发送广播信道信号时应用的符号映射模式，通过软组合来根据接收机的时间来增加信号干扰比。 一种用于发送/接收广播信道信号的方法包括以下步骤：在符号映射单元（120）处，选择不同于先前传输周期的第一符号映射模式的第二符号映射模式作为映射模式 当前传输周期的每个广播信道符号; 和射频发送单元（150），基于第二符号映射模式发送广播信道信号。 在第一符号映射模式中使用的频率与在第二符号映射模式中使用的频率之间的间隔大于用于映射相同广播频道符号的频道的相干频带。
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公开(公告)号：KR1020080039787A
公开(公告)日：2008-05-07
申请号：KR1020070101623
申请日：2007-10-09
CPC classification number: H04L5/0048 , H04L5/0007 , H04W72/1278
Abstract: A method for transmitting and receiving L1/L2 control information in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to configure and transmit downlink scheduling information and uplink grant control information efficiently in case a base station transmits data to mobile terminals through a downlink. A base station divides downlink control information into a common control block and an individual control block(S210). The common control block contains the number of used control channels and location information(S220), and the individual control block contains downlink schedule information and uplink grant control information for each mobile terminal(S230). The downlink schedule information includes each mobile terminal's ID, downlink resource allocation information, additional control information, and CRC(Cyclic Redundancy Code) bits. The uplink grant control information includes each mobile terminal's ID, uplink resource allocation information, additional control information, and CRC bits. Using predefined transport resources and a predefined transport format, the base station transmits the common control block every TTI(Transmit Time Interval)(S240). The base station transmits the individual control block through a distributed or localized control channel(S250).
Abstract translation: 提供了一种用于在OFDMA（正交频分多址）系统中发送和接收L1 / L2控制信息的方法，用于在基站通过下行链路向移动终端发送数据时有效地配置和发送下行链路调度信息和上行准许控制信息 。 基站将下行链路控制信息划分为公共控制块和单独的控制块（S210）。 公共控制块包含所使用的控制信道的数量和位置信息（S220），并且各个控制块包含用于每个移动终端的下行链路调度信息和上行链路许可控制信息（S230）。 下行链路调度信息包括每个移动终端的ID，下行链路资源分配信息，附加控制信息和CRC（循环冗余码）比特。 上行链路许可控制信息包括每个移动终端的ID，上行链路资源分配信息，附加控制信息和CRC比特。 使用预定义的传输资源和预定义的传输格式，基站每TTI（发送时间间隔）发送公共控制块（S240）。 基站通过分布式或本地化的控制信道发送单独的控制块（S250）。
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45.发明公开
公开(公告)号：KR1020080031658A
公开(公告)日：2008-04-10
申请号：KR1020070100033
申请日：2007-10-04
Applicant: 한국전자통신연구원
CPC classification number: H04J11/0069 , H04B7/2615 , H04L27/2613 , H04L27/2655
Abstract: A cell search method for an OFDM(Orthogonal Frequency Division Multiplexing) based FDD(Frequency Division Duplex) and TDD(Time Division Duplex) dual mode mobile station and base station transmission scheme is provided to realize a cell searcher for simply operating both an FDD mode and a TDD mode. A method for transmitting a forward synchronization signal includes the steps of: generating a frame including a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame includes a first SCH(Synchronization Channel) sequence and a plurality of second SCH sequence and specifies a cell identifier by the first SCH sequence and the plurality of second SCH sequence. The first SCH sequence supplies sync block timing information and the plurality of second SCH sequences supply frame timing information. Both the first SCH sequence and the second SCH sequences are used in TDD and FDD systems.
Abstract translation: 提供了一种用于基于OFDM（正交频分复用）的FDD（频分双工）和TDD（时分双工）双模移动台和基站传输方案的小区搜索方法，以实现一个小区搜索器，简单地操作FDD模式 和TDD模式。 用于发送正向同步信号的方法包括以下步骤：产生包括多个同步块的帧; 并且通过前向链路发送所述帧，其中，所述帧包括第一SCH（同步信道）序列和多个第二SCH序列，并且通过所述第一SCH序列和所述多个第二SCH序列指定小区标识符。 第一SCH序列提供同步块定时信息，并且多个第二SCH序列提供帧定时信息。 在TDD和FDD系统中都使用第一SCH序列和第二SCH序列。
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Patent Agency Ranking
公开(公告)号：KR1020080030923A
公开(公告)日：2008-04-07
申请号：KR1020070093234
申请日：2007-09-13
CPC classification number: H04W72/042 , H04L5/0007 , H04W72/0446 , H04W72/1273
Abstract: Downlink resource allocation for an OFDMA system is provided to transmit allocation information about resources to be used in an MS(Mobile Station) when a BS(Base Station) transmits downlink scheduling information to the MS, thereby maximizing the amount of resources used in data transmission and increasing a data transmission rate. A method for transmitting resource allocation information comprises the following steps of: constructing continuous physical resources as a sub band; constructing the sub band allocation information as a binary bitmap to transmit the constructed binary bitmap to a first control channel; and constructing allocation information within the sub band regarding the sub band as a binary bitmap to transmit the constructed binary bitmap to a second control channel.
Abstract translation: 当BS（基站）向MS发送下行链路调度信息时，提供用于OFDMA系统的下行链路资源分配以发送关于要在MS（移动台）中使用的资源的分配信息，从而最大化数据传输中使用的资源量 并提高数据传输速率。 一种用于发送资源分配信息的方法包括以下步骤：构建连续的物理资源作为子带; 将子带分配信息构造为二进制位图，以将构造的二进制位图传送到第一控制信道; 以及将关于子带的子带内的分配信息构建为二进制位图，以将构造的二进制位图发送到第二控制信道。
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公开(公告)号：KR1020080020934A
公开(公告)日：2008-03-06
申请号：KR1020070052549
申请日：2007-05-30
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W72/04 , H04J11/00 , H04J13/0074 , H04L1/1692 , H04L1/1861 , H04L1/1887 , H04L5/0021 , H04L5/0048 , H04L5/0053 , H04L25/03866 , H04L27/2602 , H04J11/0026
Abstract: An uplink signal transmission method of a communication system, a transmission device, a generation method, and a generation device are provided to randomize interference between users and cells when a frequency domain CDM(Code Division Multiplexing) method is used, thereby reducing the interference between users. At the first transmission time, the first sequence for distinguishing a terminal from another terminal is multiplied by the first transmission symbol to transmit the multiplied sequence. At the second transmission time different from the first transmission time, the second sequence for distinguishing the terminal from another terminal is multiplied by the second transmission symbol to transmit the multiplied sequence. The second sequence is different from the first sequence.
Abstract translation: 提供通信系统，发送装置，生成方法和生成装置的上行链路信号发送方法，以便在使用频域CDM（码分多址）方法的情况下使用户和小区之间的干扰随机化，从而减少 用户。 在第一传输时间，将终端与另一终端进行区分的第一序列乘以第一传输符号以发送乘法序列。 在与第一传输时间不同的第二传输时间，用于区分终端与另一终端的第二序列被第二传输符号相乘以发送乘法序列。 第二个序列与第一个序列不同。
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公开(公告)号：KR1020080012150A
公开(公告)日：2008-02-11
申请号：KR1020070072449
申请日：2007-07-19
CPC classification number: H04J11/0093 , H04W48/16 , H04W56/0055 , H04W64/00
Abstract: A data transmission method of an MS(Mobile Station) using a cell search signal and a device thereof are provided to enable the MS to determine a location by itself by using cell search signals received from base stations within a home cell and neighboring cells, and to estimate uplink delay time information, thereby omitting RACH(Random Access Channel) burst transmission. An MS receives cell search signals from base stations within a synchronized home cell and base stations within at least more than neighboring cell(S710). The MS calculates receiving time differences between the cell search signals received from the base stations within the home cell and the neighboring cells(S720). The MS calculates uplink delay time of the neighboring cells based on the receiving time differences(S730).
Abstract translation: 提供使用小区搜索信号的MS（移动站）的数据传输方法及其装置，以使得MS能够通过使用从家庭小区和邻近小区内的基站接收的小区搜索信号来自己确定位置，以及 以估计上行链路延迟时间信息，从而省略RACH（随机接入信道）突发传输。 MS在至少相邻小区内的同步家庭小区和基站内的基站接收小区搜索信号（S710）。 MS计算从家庭小区内的基站和相邻小区接收的小区搜索信号之间的接收时间差（S720）。 MS根据接收时间差计算相邻小区的上行延迟时间（S730）。
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公开(公告)号：KR1020080010254A
公开(公告)日：2008-01-30
申请号：KR1020060107489
申请日：2006-11-01
CPC classification number: H04B1/7083 , H04B7/2621 , H04W84/02
Abstract: A cell search method in an OFDM(Orthogonal Frequency Division Multiplexing) cellular system, a frame transmission method therefor, and a forward link frame structure are provided to smoothly perform handover by effectively searching an adjacent cell, and reduce the amount of battery consumption of a mobile station. The first detecting unit obtains symbol synchronization by applying a matching filter to a reception signal(S800). A hop pattern correlation values are calculated by using reception synchronous channel symbols extracted from the reception signal based on the obtained symbol synchronization information, and a hop pattern of a target cell is detected based on the calculated hop pattern correlation values(S820). A code group and a frame boundary of the target cell are detected based on the detected hop pattern(S840). Pilot correlation values of common pilot channel symbols and scrambling codes belonging to the detected code group are calculated, and the scrambling codes of the target cell are detected based on the calculated pilot correlation value(S860). It is checked whether the detection results are reliable(S880).
Abstract translation: 提供了OFDM（正交频分复用）蜂窝系统中的小区搜索方法，其帧传输方法和前向链路帧结构，以通过有效地搜索相邻小区来平滑地执行切换，并且减少电池消耗量 移动台。 第一检测单元通过对接收信号应用匹配滤波器来获得符号同步（S800）。 通过使用基于获得的符号同步信息从接收信号提取的接收同步信道符号来计算跳模式相关值，并且基于所计算的跳频模式相关值来检测目标小区的跳频模式（S820）。 基于检测到的跳跃模式来检测目标小区的码组和帧边界（S840）。 计算属于所检测的代码组的公共导频信道符号和扰码的导频相关值，并且基于所计算的导频相关值来检测目标小区的扰码（S860）。 检查检测结果是否可靠（S880）。
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公开(公告)号：KR1020070103704A
公开(公告)日：2007-10-24
申请号：KR1020070038150
申请日：2007-04-19
CPC classification number: H04B7/0602 , H04B7/12 , H04L1/0006 , H04L1/06 , H04L1/1893 , H04L5/0053 , H04L5/023 , H04L27/2626 , H04W52/10 , H04W52/146 , H04W52/286 , H04W52/48 , H04B7/0608 , H04L27/2601
Abstract: A transmission method for obtaining random access diversity in a mobile station is provided to increase the RACH(Random Access CHannel) signature detection probability of a base station by applying a TSTD(Time Switching Transmit Diversity) technique, a frequency hopping technique, and a power ramping technique to RACH burst transmission in various combinations. A transmitting apparatus having two Tx antennas(140,150) in a mobile station comprises an OFDMA(Orthogonal Frequency Division Multiple Access) modulating unit(110), a transmitting unit(120), and a power controlling unit(130). The OFDMA modulating unit(110) allocates an RACH burst(S1) to a specific subband, executes OFDMA modulation, and makes an RACH burst signal(S2). If an ACK signal for the RACH burst is received from a base station, the OFDMA modulating unit(110) modulates user packet data containing an RACH message and transmits the modulated data to the transmitting unit(120). The transmitting unit(120) transmits the RACH burst signal(S2), outputted from the OFDMA modulating unit(110), to the base station using the Tx antennas(140,150) alternately. If the ACK signal for the RACH burst is received, the transmitting unit(120) amplifies and upconverts the OFDMA-modulated user packet data and transmits the data through a Tx antenna which receives the ACK signal. The power controlling unit(130) creates a control signal(S4) to control the power of the RACH burst signal(S2).
Abstract translation: 提供一种用于获得移动台中的随机接入分集的传输方法，以通过应用TSTD（时间切换发射分集）技术，跳频技术和功率来增加基站的RACH（随机接入信道）签名检测概率 RACH技术以RACH突发传输方式进行各种组合。 在移动站中具有两个Tx天线（140,150）的发送装置包括OFDMA（正交频分多址）调制单元（110），发送单元（120）和功率控制单元（130）。 OFDMA调制单元（110）向特定子带分配RACH突发（S1），执行OFDMA调制，并生成RACH突发信号（S2）。 如果从基站接收到用于RACH突发的ACK信号，则OFDMA调制单元（110）调制包含RACH消息的用户分组数据，并将调制数据发送到发送单元（120）。 发送单元（120）使用Tx天线（140,150）交替地将从OFDMA调制单元（110）输出的RACH脉冲串信号（S2）发送到基站。 如果接收到用于RACH脉冲串的ACK信号，则发送单元（120）放大和上变换OFDMA调制的用户分组数据，并通过接收ACK信号的Tx天线发送数据。 功率控制单元（130）创建控制信号（S4）以控制RACH突发信号的功率（S2）。
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