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    • 41. 发明授权
    • 역방향 동기 전송 방식을 사용하는 부호분할다중접속 통신시스템에서 역방향 동기 방법
    • 关于本网站使用本网站表示您同意其使用条款和隐私政策
    • KR100446498B1
    • 2004-09-04
    • KR1020010023066
    • 2001-04-27
    • 삼성전자주식회사
    • 최성호이현우곽용준박준구
    • H04B7/26
    • H04B7/2684H04B1/7075H04B2001/70706
    • A method for synchronizing a reception time point of a UL DPCH signal to a previously expected time point when the reception time point of the UL DPCH signal received from a UE is different from the previously expected time point by a Node B, wherein the Node B transmits a DL DPCH signal to the UE at a time point assigned to the UE on a basis of a reference time point of the Node B, and the DL DPCH signal includes a stream of TAB bits for uplink synchronization control. The method comprises measuring a difference between the reception time point of the UP DPCH signal and the expected time point; transmitting information for maintaining a transmission time of the UL DPCH signal previously transmitted by the UE to the UE using the TAB bits, when there is a difference between a lower limit value and an upper limit value, determined by the number of the TAB bits of the DL DPCH signal received by the UE; transmitting information for advancing a transmission time of the previously transmitted UL DPCH signal as much as a set unit determined by the number of the TAB bits using the TAB bits, when the difference is larger than or equal to the upper limit value; and transmitting information for delaying a transmission time of the previously transmitted UL DPCH signal as much as the set unit using the TAB bits, when the difference is less than the lower limit value.
    • 一种用于在由节点B从UE接收到的UL DPCH信号的接收时间点与先前预期的时间点不同时将UL DPCH信号的接收时间点与先前预期的时间点进行同步的方法,其中节点B 基于节点B的参考时间点在分配给UE的时间点向UE发送DL DPCH信号,并且DL DPCH信号包括用于上行链路同步控制的TAB比特流。 该方法包括测量UP DPCH信号的接收时间点与预期时间点之间的差值; 当存在下限值和上限值之间的差异时,使用TAB比特发送用于维持由UE先前发送给UE的UL DPCH信号的发送时间的信息,该下限值由 UE接收到的DL DPCH信号; 当所述差大于或等于所述上限值时,发送用于使用所述TAB比特提前所述先前发送的UL DPCH信号的发送时间和由所述TAB比特的数量所确定的设置单位一样多的信息; 以及当所述差小于所述下限值时,使用所述TAB比特发送用于延迟所述先前发送的UL DPCH信号的发送时间与所述设置的单元一样多的信息。
    • 44. 发明公开
    • 확산 스펙트럼 통신 트랜시버에서의 동기화 획득
    • 확산스펙트럼통신트랜시버에서의동기화획득
    • KR1020040036712A
    • 2004-04-30
    • KR1020047002266
    • 2002-08-19
    • 아이트란 커뮤니케이션스 리미티드
    • 라파엘리,단카우프만,오렌바씬,이브제니자러드,보리스
    • H04L7/10
    • H04B1/7075H04B1/70755H04B1/7095H04B2201/70715
    • 본 발명에 따르면, 확산 스펙트럼 통신 시스템에 대한 개선된 획득 메커니즘이 제공되며, 이것에 의해 사전 정의된 시간 지연 간격에 의해 분리된 복수의 공지된 심벌을 포함하는 동기화 시퀀스가 패킷 신호의 시작으로서 전송된다. 수신기에서, 수신된 신호는 심벌들 사이에 삽입된 시간 지연 간격 또는 사전 정의된 갭을 사용하여 동기화 시퀀스에 대해 상관된다. 수신된 신호는 선형으로 상관되어, 수신된 각 심벌에 대해 상관 피크를 발생한다. 그 다음에 각 상관 피크의 예상 위치가 계산되고, 수신된 상기 상관 피크의 위치와 비교된다. 매칭 수가 임계치를 초과하면, 동기화가 선언된다.
    • 一种用于扩频通信系统的新颖且有用的采集和同​​步机制,其中包括以预定时间间隔隔开的多个已知码元的同步序列被传输作为分组信号的开始。 在发射机处,在每个分组的开始处发送同步序列。 生成包括多个符号的同步序列,每个符号之间具有预定义的时间间隔。 可以生成多个同步序列,其中每个序列包括每个符号之间的唯一一组时间延迟或间隙。 序列的符号之间的每一组独特的时间延迟或间隙被存储为存储器中的同步序列间隙模板。 当需要产生同步序列时,序列发生器输出多个同步符号,并根据特定同步序列的间隙模板的内容在每个符号之间插入一个特定的时间延迟。
    • 47. 发明授权
    • 부호 분할 다중 통신 방식
    • 부호분할다중통신방식
    • KR100377717B1
    • 2003-03-26
    • KR1020007008685
    • 1999-12-09
    • 츠보우치 가즈오
    • 츠보우치가즈오마스가즈야시바타도모히코
    • H04B1/7093H04B1/71
    • H04B1/7075H04B1/707H04B1/70712H04B1/7093
    • In a code division multiple communication system which prevents the dropout of a whole packet and does not require the generation of a carrier from a received signal, under bad communication path, by generating an orthogonal code with chip synchronization from a correlation peak of a synchronization code sequence output from a surface acoustic wave matched filter, a preamble division of a spectrum spread signal is composed of plural synchronization burst. Each synchronization burst is composed of a synchronization packet division having the Barker code of 11 chips and a dummy division. The period of one synchronization burst (Tburst) is set equally to the period of one symbol in a data division (Tsymbol) which is modulated by the orthogonal m-sequential code of 64 chips. When the correlation peak of at least one from among plural synchronization code sequences is detected, the orthogonal code can be generated in accordance with the start timing of the first symbol in the data division.
    • 在防止整个分组丢失并且不需要从接收信号中产生载波的码分多址通信系统中,在不良通信路径中,通过从同步码的相关峰值产生具有码片同步的正交码 从声表面波匹配滤波器输出序列,频谱扩展信号的前导码分割由多个同步脉冲组成。 每个同步脉冲串由具有11个芯片的巴克码的同步分组分区和虚拟分区组成。 一个同步突发(Tburst)的周期被设置为等于由64个码片的正交m-顺序码调制的数据部分(Tsymbol)中的一个符号的周期。 当检测到多个同步码序列中的至少一个同步码序列的相关峰值时,可根据数据分区中的第一码元的开始定时产生正交码。 <图像>
    • 48. 发明公开
    • 분할모드에 따른 전송형식 조합표시 비트의 부호화 장치및 방법
    • 用于根据分割模式编码TFCI位的装置和方法
    • KR1020020070160A
    • 2002-09-05
    • KR1020020010693
    • 2002-02-27
    • 삼성전자주식회사
    • 김재열최성호이현우
    • H04B1/69
    • H04L1/0072H04B1/7075H04B2201/70703H04J13/0048H04J13/12
    • PURPOSE: An apparatus and method for coding TFCI(Transport Format Combination Indicator) bits according to split modes is provided to calculate correlations respectively for DCH(Dedicated CHannel) TFCI bits and DSCH(Downlink Shared CHannel) TFCI bits transmitted with their respective different ratios. CONSTITUTION: DSCH TFCI bits and DCH TFCI bits, distributed according to an information amount ratio, are respectively inputted to the first coder(400) and the second coder(405). The DSCH TFCI bits, the first TFCI, are generated from the first TFCI bit generator(450), and the DCH TFCI bits, the second TFCI, are generated from the second TFCI bit generator(455). The first TFCI and the second TFCI have their respective ratios according to the information amount ratio. Also each length control signal, indicating code length information, is respectively inputted to each the first coder(400) and the second coder(405). In case that the information amount ratio is 6:4, 6 DSCH TFCI bits are inputted to the first coder(400). In this case, the first coder(400) receives a length control signal so as to work as a (18,6)coder that outputs 18-symbol codewords. Also 4 DSCH TFCI bits are inputted to the second coder(405). The second coder(405) receives a length control signal so as to work as a (12,4)coder that outputs 12-symbol codewords.
    • 目的:提供一种根据分离模式对TFCI(传输格式组合指示符)比特进行编码的装置和方法,用于分别用用各自的不同比率发送的DCH(专用信道)TFCI比特和DSCH(下行链路共享信道)TFCI比特的相关性。 构成:根据信息量比分配的DSCH TFCI位和DCH TFCI位分别输入到第一编码器400和第二编码器405。 从第一TFCI位产生器(450)生成DSCH TFCI位,第一TFCI位,并且从第二TFCI位发生器(455)生成DCH TFCI位,第二TFCI位。 第一TFCI和第二TFCI根据信息量比率分别具有各自的比例。 每个长度控制信号(指示码长度信息)分别输入到每个第一编码器(400)和第二编码器(405)。 在信息量比为6:4的情况下,6个DSCH TFCI比特被输入到第一编码器400。 在这种情况下,第一编码器(400)接收长度控制信号,以便作为输出18符号码字的(18,6)编码器工作。 此外,4个DSCH TFCI位被输入到第二编码器(405)。 第二编码器(405)接收长度控制信号,以便作为输出12个符号码字的(12,4)编码器工作。
    • 49. 发明公开
    • 다위상 CDMA 변/복조 방법 및 그 장치
    • 多相CDMA调制/解调方法和装置
    • KR1020020067890A
    • 2002-08-24
    • KR1020010058195
    • 2001-09-20
    • (주) 피코캐스트
    • 류승문
    • H04B1/7077
    • H04B1/7075H04B2201/70706H04J13/004
    • PURPOSE: A multiphase CDMA modulation/demodulation method and apparatus is provided to transmit data after limits the sum of signals with required levels and fractionating phases as much as the number of limited levels. CONSTITUTION: A control part in a multiphase CDMA modulation apparatus settles the range of output levels to truncate the output ranges of modulated signals(S110), segments phases, and settles modulation phases using the segmented phases(S120). Then the control part multiplies many channel data, inputted from the external, by an orthogonal code, executes CDMA modulation by channels(S130), and obtains the sum of the modulated signals(S140). The control part truncates the sum of the modulated signals in the range of the settled output levels(S150) and allocates the output signal of each level to each settled modulation phase(S160). Then the control part transmits the output signal of each level by each modulation phase allocated to the output signal of each level(S170).
    • 目的:提供多相CDMA调制/解调方法和装置,用于在限制所需级别和分级阶段的信号总和之后传输数据,并且限制级别数量。 构成:多相CDMA调制装置中的控制部分设置输出电平的范围,以截断调制信号的输出范围(S110),段相位,并使用分段相位(S120)建立调制相位。 然后,控制部分将从外部输入的许多信道数据乘以正交码,通过信道执行CDMA调制(S130),并获得调制信号的和(S140)。 控制部分截断在稳定输出电平范围内的调制信号之和(S150),并将每个电平的输出信号分配给每个建立的调制阶段(S160)。 然后,控制部分通过分配给每个电平的输出信号的每个调制相位发送每个电平的输出信号(S170)。
    • 50. 发明公开
    • 광대역 코드분할 다중접속 이동통신 시스템의 송신장치
    • 用于W-CDMA移动通信系统的发送装置
    • KR1020020066736A
    • 2002-08-21
    • KR1020010007073
    • 2001-02-13
    • 엘지전자 주식회사
    • 박원형
    • H04B1/04
    • H04B1/7075H04L27/2627
    • PURPOSE: A transmitting apparatus for a W-CDMA(Wideband-Code Division Multiple Access) mobile communication system is provided to improve transmission performance by embodying a QPSK(Quadrature Phase Shift Keying) with a 3GPP(3rd Generation Partnership Project) standard for modulating a digital baseband signal into an IF(Intermediate Frequency) signal by a digital type, reducing the distortion of a level and phase of a signal, and blocking the input of noise component. CONSTITUTION: An IF signal processing unit(30) advances a matched digital baseband signal to an IF, performs a QPSK modulation by a digital type, and outputs an analog signal. The IF signal processing unit(30) has FIR(Finite Impulse Response) filters(30a,30e) for filtering signal components(I,Q) outputted from a digital matching unit(20), and interpolators(30b,30c,30f,30g) for sampling the matched baseband signal to chipx16 defined in a 3GPP standard and generating a last output sampling speed at 61.44Mcps. The IF signal processing unit(30) has QPSK modulators(30d,30h) for multiplying each component(I,Q) of the baseband W-CDMA digital signal sampled as the chipx16 by cos(2*π*Fn/Ro) and -sin(2*π*Fn/Ro) and performing QPSK digital modulation, an adder(30i) for adding the QPSK-modulated signals(I,Q), and a D/A converter(30j) for converting the signal added in the adder(30i) into an analog signal with an IF(15.36MHz). The IF signal processing unit(30) has a band pass filter(30k) for filtering the analog signal, and a multiplier(30l) for multiplying the filtered IF signal by cos(2*π*Fif*t) and advancing the frequency.
    • 目的:提供一种用于W-CDMA(宽带码分多址)移动通信系统的发送装置,通过用3GPP(第3代合作伙伴计划)标准体现QPSK(正交相移键控)来提高传输性能,用于调制 数字基带信号通过数字类型转换为IF(中频)信号,减少信号电平和相位的失真,并阻塞噪声分量的输入。 构成:IF信号处理单元(30)将匹配的数字基带信号前进到IF,通过数字类型进行QPSK调制,并输出模拟信号。 IF信号处理单元(30)具有用于滤波从数字匹配单元(20)输出的信号分量(I,Q)和内插器(30b,30c,30f,30g)的FIR(有限脉冲响应)滤波器(30a,30e) ),用于将匹配的基带信号采样到在3GPP标准中定义的chipx16,并产生最后输出采样速度为61.44Mcps。 IF信号处理单元(30)具有用于将采样为芯片x16的基带W-CDMA数字信号的每个分量(I,Q)乘以cos(2 *π* Fn / Ro)的QPSK调制器(30d,30h) sin(2 *π* Fn / Ro),并执行QPSK数字调制,用于将QPSK调制信号(I,Q)相加的加法器(30i)和用于转换加到其中的信号的D / A转换器 加法器(30i)成为具有IF(15.36MHz)的模拟信号。 IF信号处理单元(30)具有用于对模拟信号进行滤波的带通滤波器(30k),以及用于将经滤波的IF信号乘以cos(2 *π* Fif * t)并推进频率的乘法器(301)。