公开(公告)号：US5910948A

公开(公告)日：1999-06-08

申请号：US955613

申请日：1997-10-22

申请人： Guoliang Shou ,  Changming Zhou ,  Xuping Zhou ,  Makoto Yamamoto ,  Sunao Takatori ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Guoliang Shou ,  Changming Zhou ,  Xuping Zhou ,  Makoto Yamamoto ,  Sunao Takatori ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04B1/707 ,  H04B1/708 ,  H04B1/7083 ,  H04B7/26 ,  H04J13/00 ,  H04L7/00 ,  H04W36/00 ,  H04W48/18 ,  H04W56/00 ,  H04B7/216

CPC分类号： H04W48/18 ,  H04B1/70735 ,  H04B1/70775 ,  H04B1/708 ,  H04B1/7083 ,  H04B1/7093 ,  H04B1/7117 ,  H04B2201/70702 ,  H04W36/00

摘要： The present invention realizes a rapid and efficient cell search and small-size instrument for an asynchronous DS-CDMA cellular system. This cell search detects the correlation between the received signal and the short code of the control channel, and matched filter 22 detects the maximum electric power correlation peak location. Next, using correlators 28-1 to 28-n which are parallelly set in a plurality for RAKE processing with plurality, identifies the long code that is set in the system with the detected long code timing. After the long code is synchronized, a multipath signal is received using 28-1 to 28-n, and the data is judged by RAKE processing. When peripheral cell search is executed, after long code timing is detected by using matched filter 22, the long code of the candidate peripheral cell is designated using the same matched filter. Handover is safely realized by receiving the signal from the connected base station by correlators 28-1 to 28-n, and the base station signal through handover by 22.

摘要翻译： 本发明实现了用于异步DS-CDMA蜂窝系统的快速且有效的小区搜索和小尺寸仪器。 该小区搜索检测接收信号与控制信道的短码之间的相关性，匹配滤波器22检测最大功率相关峰位置。 接下来，使用多个并行设置为用于RAKE处理的多个的相关器28-1至28-n识别具有检测到的长码定时的系统中设置的长码。 在长代码同步之后，使用28-1至28-n接收多路径信号，并且通过RAKE处理来判断数据。 当执行外围小区搜索时，在通过使用匹配滤波器22检测长码定时之后，使用相同的匹配滤波器来指定候选周边小区的长码。 通过由相关器28-1至28-n接收来自所连接的基站的信号，以及通过22次切换的基站信号来安全地实现切换。

公开(公告)号：US06370130B1

公开(公告)日：2002-04-09

申请号：US09092914

申请日：1998-06-08

申请人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Kunihiko Suzuki ,  Makoto Yamamoto

发明人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Kunihiko Suzuki ,  Makoto Yamamoto

IPC分类号： H04B7216

CPC分类号： H04B1/7077 ,  H04B1/70735 ,  H04B1/708 ,  H04B7/2628 ,  H04B2201/70702 ,  H04B2201/7071

摘要： A receiver for spread spectrum communication system receives a traffic channel and common control channel by a plurality of matched filters at least one of which is selectively available for the traffic or the common control channel. At the initial acquisition, a plurality of matched filters are used for receiving the common control channel. At the hand-over, a plurality of matched filters are used to receive traffic channels of the current base station and the base stations in the adjacent cells.

摘要翻译： 用于扩频通信系统的接收机通过多个匹配滤波器接收业务信道和公共控制信道，其中至少一个匹配滤波器可选择地可用于业务或公共控制信道。 在初始采集时，使用多个匹配滤波器来接收公共控制信道。 在切换时，使用多个匹配滤波器来接收当前基站和相邻小区中的基站的业务信道。

公开(公告)号：US06278724B1

公开(公告)日：2001-08-21

申请号：US09032776

申请日：1998-03-06

申请人： Changming Zhou ,  Guoliang Shou ,  Kunihiko Suzuki ,  Xuping Zhou ,  Xiaoling Qin ,  Jie Chen ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Changming Zhou ,  Guoliang Shou ,  Kunihiko Suzuki ,  Xuping Zhou ,  Xiaoling Qin ,  Jie Chen ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04L2732

CPC分类号： H04B1/7113 ,  H04B1/7117 ,  H04B1/712 ,  H04B1/7183

摘要： A signal reception apparatus in the spread spectrum communication system requires only a small amount of circuitry and consumes a small amount of electric power. A quadrature detector decomposes received signals into in-phase components and quadrature components, and supplies them to a complex-type matched filter. The complex-type matched filter de-spreads the in-phase components and the quadrature components and sends them to a multi-path selector. The multi-path selector selects, from among the received de-spread signals, multiple paths having high levels of signal electric powers and sends the received signals of the selected paths to multiple phase correction blocks. Analog operation circuits calculate phase errors of the received signals of two successive pilot symbol blocks for each path. An analog operation circuit corrects the phases of the received signals of the information symbol block that has been received between the two successive pilot symbol blocks. A rake combiner synchronously combines the phase-corrected de-spread received signals of each path.

摘要翻译： 扩频通信系统中的信号接收装置仅需要少量的电路并消耗少量的电力。 正交检测器将接收信号分解为同相分量和正交分量，并将其提供给复合型匹配滤波器。 复合型匹配滤波器对同相分量和正交分量进行解扩，并将它们发送到多路径选择器。 多径选择器从接收到的解扩信号中选择具有高电平信号电功率的多个路径，并将所选择的路径的接收信号发送到多个相位校正块。 模拟运算电路计算每个路径的两个连续导频符号块的接收信号的相位误差。 模拟运算电路校正在两个连续的导频符号块之间已经接收到的信息符号块的接收信号的相位。 瑞克组合器同步地组合每个路径的相位校正的去扩展接收信号。

公开(公告)号：US06212219B1

公开(公告)日：2001-04-03

申请号：US08780137

申请日：1996-12-26

申请人： Guoliang Shou ,  Changming Zhou ,  Xuping Zhou ,  Makoto Yamamoto ,  Sunao Takatori

发明人： Guoliang Shou ,  Changming Zhou ,  Xuping Zhou ,  Makoto Yamamoto ,  Sunao Takatori

IPC分类号： H04L2730

CPC分类号： H04J13/0022 ,  H04J13/10 ,  H04J2013/0037

摘要： The present invention has an object to provide a spread spectrum communication system for heightening the speed of communication. The present invention transfers the first PN code sequence itself as the first component, adds and transfers zero or more instances of the second PN code sequence given a phase difference as the second component, and defines an information for transmitting by the number of the second PN codes corresponding to a cycle of said first PN code sequence.

摘要翻译： 本发明的目的是提供一种用于提高通信速度的扩频通信系统。 本发明将第一PN码序列本身作为第一分量传送，将给定相位差的第二PN码序列的零个或多个实例相加并传送作为第二分量，并且定义用于通过第二PN 对应于所述第一PN码序列的周期的码。

公开(公告)号：US5945875A

公开(公告)日：1999-08-31

申请号：US47457

申请日：1998-03-25

申请人： Xuping Zhou ,  Guoliang Shou ,  Changming Zhou

发明人： Xuping Zhou ,  Guoliang Shou ,  Changming Zhou

IPC分类号： H04L27/22 ,  H04L27/233 ,  H03D3/00

CPC分类号： H04L27/2331

摘要： A .pi./n shift PSK demodulator of this invention is formed with a digital logical means through the following method. XOR4 calculates the ex-OR operation between the present sample through .pi./4 shift QPSK output from SH2 and the previous one output from SH1. Accumulating 1 among the outputs from XOR4 in the first operation means 5 and multiplying it by .pi./8 obtains the absolute phase difference between the present and the previous symbols. The former or latter four bits from SH1 are subtracted from the corresponding former or latter four bits from SH2, and the result of each bit is summed and its sign is added to the absolute phase data in sign addition means 10. After the phase offset is subtracted from the outputs from 10, it is demodulated into the original one in judgment circuit 13.

摘要翻译： 本发明的π/ n移位PSK解调器通过以下方法由数字逻辑装置形成。 XOR4通过从SH2输出的pi / 4移位QPSK和SH1的前一个输出来计算当前采样之间的异或运算。 在第一操作装置5中从XOR4的输出中累积1，并将其乘以pi / 8获得当前和先前符号之间的绝对相位差。 来自SH1的前者或后者的四位从SH2的相应的前一个或后四位中减去，每个位的结果被相加，并且其符号被加到符号加法装置10中的绝对相位数据。在相位偏移为 从10的输出中减去，在判断电路13中被解调成原来的。

公开(公告)号：US5812546A

公开(公告)日：1998-09-22

申请号：US802635

申请日：1997-02-19

申请人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

发明人： Changming Zhou ,  Guoliang Shou ,  Xuping Zhou ,  Makoto Yamamoto ,  Kenzo Urabe ,  Sunao Takatori

IPC分类号： H04B1/707 ,  H04B1/7093 ,  H04J13/04

CPC分类号： H04B1/7093

摘要： The demodulator has a plurality of matched filters in parallel. Each matched filter has a different binary PN code, a plurality of sample holders, a plurality of multipliers, an adder, and a controller. The sample holders has a common input, a switch, a first capacitor, a first inverse amplifier with an output and an input connected to the common input through the switch and the capacitor, and a first feedback capacitor for feeding the output of the first inverse amplifier back to the input. Each multiplier has a first and second sub-multiplexers, one of sub-multiplexer selecting corresponding sample holder output and another sub-multiplexer selecting a reference voltage.

摘要翻译： 解调器具有并联的多个匹配滤波器。 每个匹配滤波器具有不同的二进制PN码，多个采样保持器，多个乘法器，加法器和控制器。 样本保持器具有公共输入，开关，第一电容器，具有输出的第一反相放大器和通过开关和电容器连接到公共输入的输入端，以及用于馈送第一反相器的输出的第一反馈电容器 放大器返回输入。 每个乘法器具有第一和第二子复用器，其中一个子复用器选择对应的采样保持器输出，另一个副多路复用器选择参考电压。

公开(公告)号：US06064690A

公开(公告)日：2000-05-16

申请号：US75861

申请日：1998-05-12

申请人： Changming Zhou ,  Xuping Zhou ,  Guolinag Shou

发明人： Changming Zhou ,  Xuping Zhou ,  Guolinag Shou

IPC分类号： H04B1/707 ,  H04B1/69

CPC分类号： H04B1/707 ,  H04B1/7093

摘要： A spread spectrum communication system wherein spreading codes for in-phase and quadrature components are composed by addition and subtraction and the received signal is multiplied by these composed codes for despreading. The communication system comprises a transmitter generating in-phase and quadrature components. The transmitter includes a spreading circuit for spreading the in-phase and quadrature components. The system further includes a receiver, a phase correction circuit for correcting the phase of despreaded components, a rake combiner for combining the components corrected by the phase correction circuit and a circuit for outputting a combined signal and a delay detection circuit for delaying detection of the combined signal. The receiver also comprises a provisional judgment portion for judging the phase of a pair of the in-phase and quadrature phase components. The phase correction circuit corrects the phase according to the phase judged by the provisional judgment portion.

摘要翻译： 扩展频谱通信系统，其中用于同相和正交分量的扩展码由加法和减法组成，并且接收的信号乘以这些组合代码用于解扩。 通信系统包括产生同相和正交分量的发射机。 发射机包括用于扩展同相和正交分量的扩展电路。 该系统还包括接收机，用于校正解扩部件的相位的相位校正电路，用于组合由相位校正电路校正的分量的组合器和用于输出组合信号的电路和延迟检测电路的延迟检测电路 组合信号。 接收机还包括用于判断一对同相和正交相位分量的相位的临时判断部分。 相位校正电路根据由临时判断部判定的相位来校正相位。

公开(公告)号：US06539009B1

公开(公告)日：2003-03-25

申请号：US09195162

申请日：1998-11-18

申请人： Changming Zhou ,  Xuping Zhou ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Changming Zhou ,  Xuping Zhou ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04B1707

CPC分类号： H04B1/707

摘要： A plurality of sets of spreading code sequences are stored in registers and selectively supplied to matched filters. The soft-handover, multi-code processing and long-delay paths can be processed by a small circuit.

摘要翻译： 多组扩展码序列被存储在寄存器中并选择性地提供给匹配的滤波器。 软切换，多码处理和长延迟路径可以由小电路处理。

公开(公告)号：US06426949B1

公开(公告)日：2002-07-30

申请号：US09098357

申请日：1998-06-17

申请人： Changming Zhou ,  Xuping Zhou ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Changming Zhou ,  Xuping Zhou ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04B7216

CPC分类号： H04B1/707 ,  H04B1/7115 ,  H04B2201/70701

摘要： A signal reception apparatus for DS-CDMA communication system having a complex matched filter for despreading a received signal into I- and Q-components Di and Dq of despread signal. Dj and Dq are input to a path selection portion 13 for extracting a phase error in a pilot symbol block of the despread signal. A phase compensation signal is calculated according to the phase error in the portion 13. An information symbol is compensated according to the phase compensation signal. An electrical power is calculated from an average of the phase compensation signal of several slots for selecting paths to be received. The selected paths are combined with phase synchronized by a rake combiner 14.

摘要翻译： 一种具有复数匹配滤波器的DS-CDMA通信系统的信号接收装置，用于将接收信号解扩展成解扩信号的I和Q分量Di和Dq。 Dj和Dq被输入到路径选择部分13，用于提取去扩展信号的导频符号块中的相位误差。 根据部分13中的相位误差来计算相位补偿信号。根据相位补偿信号补偿信息符号。 从用于选择要接收的路径的几个时隙的相位补偿信号的平均值计算电功率。 所选择的路径与由耙式组合器14相位同步的组合。

公开(公告)号：US6073149A

公开(公告)日：2000-06-06

申请号：US60000

申请日：1998-04-15

申请人： Guoliang Shou ,  Kazunori Motohashi ,  Ying Chen ,  Takashi Tomatsu ,  Changming Zhou ,  Jie Chen

发明人： Guoliang Shou ,  Kazunori Motohashi ,  Ying Chen ,  Takashi Tomatsu ,  Changming Zhou ,  Jie Chen

IPC分类号： G06F7/49 ,  G06J1/00 ,  G06F7/00 ,  G06G7/00

CPC分类号： G06F7/49 ,  G06F2207/386

摘要： A computational circuit for a multi-value addition comprising a parallel adder, an output adder, a quantizing portion and a logic conversion portion. Addition circuits in the above adders and thresholding circuits in the above quantizing portion consist of voltage-driven circuits including capacitive couplings.

摘要翻译： 一种用于多值附加的计算电路，包括并行加法器，输出加法器，量化部分和逻辑转换部分。 上述量化部分中的上述加法器和阈值电路中的加法电路由包括电容耦合的电压驱动电路组成。