公开(公告)号：US06256341B1

公开(公告)日：2001-07-03

申请号：US09124233

申请日：1998-07-29

申请人： Masayuki Ariyoshi ,  Takashi Yano ,  Takaki Uta ,  Nobukazu Doi

发明人： Masayuki Ariyoshi ,  Takashi Yano ,  Takaki Uta ,  Nobukazu Doi

IPC分类号： H04K100

CPC分类号： H04B1/707

摘要： A spread spectrum receiver having a smaller circuit scale is accomplished by a circuit construction wherein the number of taps is set to a number smaller than a spread factor, and a cyclic accumulation process for determining a correlation value of one symbol is executed by a circuit construction using an input sequence register block in common with an addition block of a spread spectrum receiver by MF according to the prior art.

摘要翻译： 具有较小电路规模的扩频接收机通过电路结构实现，其中抽头数被设置为小于扩展因子的数量，并且通过电路结构执行用于确定一个符号的相关值的循环累积处理 根据现有技术，使用与MF的扩频接收机的加法块相同的输入序列寄存器块。

公开(公告)号：US06754255B1

公开(公告)日：2004-06-22

申请号：US09516205

申请日：2000-02-29

申请人： Takashi Yano ,  Takaki Uta ,  Nobukazu Doi ,  Toshiro Suzuki

发明人： Takashi Yano ,  Takaki Uta ,  Nobukazu Doi ,  Toshiro Suzuki

IPC分类号： H04B169

CPC分类号： H04B1/70754 ,  H04B1/7073 ,  H04B1/7085 ,  H04B1/7113 ,  H04B1/7117

摘要： In a mobile communication system, the tracking of synchronization is conducted in a stable state even in a multipath environment. A delay profile detector calculates a delay profile a(n) using a despread signal for each processing unit n. A delay profile averaging unit averages a(n) to produce Ave(|a(n)|2). A data symbol detector conducts rake combining of the despread signal using a(n) and Ave(|a(n)|2). According to a(n) and Ave(|a(n)|2, a weighting function unit calculates a representative value representing delay waves. A loop filter generates a control signal in response to the representative value. A clock controller controls a spread code generator according to the control signal.

摘要翻译： 在移动通信系统中，即使在多路径环境中，同步的跟踪仍处于稳定状态。 延迟分布检测器使用每个处理单元n的去扩展信号来计算延迟分布a（n）。 延迟分布平均单元平均a（n）以产生Ave（| a（n）| <2>）。 数据符号检测器使用（n）和Ave（| a（n）| <2>）进行去扩展信号的前置合并。 根据a（n）和Ave（| a（n）| <2），加权函数单元计算代表延迟波的代表值，环路滤波器响应于代表值产生控制信号，时钟控制器控制 扩展码发生器根据控制信号。

公开(公告)号：US06483816B2

公开(公告)日：2002-11-19

申请号：US09818510

申请日：2001-03-28

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7185

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

摘要翻译： 为执行单向通信的CDMA移动通信系统提供上行信道发送功率控制方法。 基站测量在每个信道从每个移动终端发送的数据的接收电平，并且生成每个上行链路业务信道的发送功率控制信号。 所生成的发送功率控制信号被复用，并且通过使用由移动终端共享的公共信道将多路复用的公共发送功率控制信号发送到所有移动终端。 每个移动终端从接收到的公共发送功率控制信号中导出终端使用的上行链路业务信道的发送功率控制信号，并控制数据分组的发送功率。

公开(公告)号：US07061968B2

公开(公告)日：2006-06-13

申请号：US10847367

申请日：2004-05-18

申请人： Takashi Yano ,  Takaki Uta ,  Nobukazu Doi ,  Toshiro Suzuki

发明人： Takashi Yano ,  Takaki Uta ,  Nobukazu Doi ,  Toshiro Suzuki

IPC分类号： H04B1/69

CPC分类号： H04B1/70754 ,  H04B1/7073 ,  H04B1/7085 ,  H04B1/7113 ,  H04B1/7117

摘要： In a mobile communication system, the tracking of synchronization is conducted in a stable state even in a multipath environment. A delay profile detector calculates a delay profile a(n) using a despread signal for each processing unit n. A delay profile averaging unit averages a(n) to produce Ave(|a(n)|2). A data symbol detector conducts rake combining of the despread signal using a(n) and Ave(|a(n)|2). According to a(n) and Ave(|a(n)|2, a weighting function unit calculates a representative value representing delay waves. A loop filter generates a control signal in response to the representative value. A clock controller controls a spread code generator according to the control signal.

摘要翻译： 在移动通信系统中，即使在多路径环境中，同步的跟踪仍处于稳定状态。 延迟分布检测器使用每个处理单元n的去扩展信号来计算延迟分布a（n）。 延迟分布平均单元平均化a（n）以产生Ave（| a（n）| ^{2）。 数据符号检测器使用（n）和Ave（| a（n）| 2）进行解扩信号的前置合并。 根据a（n）和Ave（| a（n）| 2 ，加权函数单元计算代表延迟波的代表值，环路滤波器响应于代表值产生控制信号。 时钟控制器根据控制信号控制扩展码发生器。}

公开(公告)号：US20060092886A1

公开(公告)日：2006-05-04

申请号：US11300354

申请日：2005-12-15

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7/216

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

公开(公告)号：US6141337A

公开(公告)日：2000-10-31

申请号：US917733

申请日：1997-08-27

申请人： Takaki Uta ,  Takashi Yano ,  Nobukazu Doi

发明人： Takaki Uta ,  Takashi Yano ,  Nobukazu Doi

IPC分类号： H04J13/00 ,  H04B1/7075 ,  H04B7/26 ,  H04L25/40 ,  H04W56/00 ,  H04W76/02 ,  H04J3/06

CPC分类号： H04W56/009 ,  H04B1/707 ,  H04B7/2668 ,  H04J13/16

摘要： Before transmitting an upward traffic packet of a long code, a mobile terminal sends a short packet including a short code to a reservation channel. A base station measures delay of each packet by an initial acquisition circuit to establish chip synchronization timing and a packet de-multiplexer to separate from each other packets overlapped in time with each other. When spreading the long-code packet transmitted via a traffic channel from the mobile terminal, information of the measured delay time is synchronously despread by setting a coefficient at an appropriate point of timing to a matched filter.

摘要翻译： 在发送长码的向上业务分组之前，移动终端向预留信道发送包括短码的短分组。 基站通过初始采集电路测量每个分组的延迟，以建立码片同步定时和分组去多路复用器彼此分离，以便彼此重叠。 当通过业务信道从移动终端发送的长码分组进行扩展时，通过将适当时间点的系数设置为匹配滤波器来同步地解扩所测量的延迟时间的信息。

公开(公告)号：US07006463B2

公开(公告)日：2006-02-28

申请号：US10262935

申请日：2002-10-03

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7/185 ,  H04B7/216

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

公开(公告)号：US20080170555A1

公开(公告)日：2008-07-17

申请号：US12076140

申请日：2008-03-14

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7/216

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

摘要翻译： 为执行单向通信的CDMA移动通信系统提供上行信道发送功率控制方法。 基站测量在每个信道从每个移动终端发送的数据的接收电平，并且生成每个上行链路业务信道的发送功率控制信号。 所生成的发送功率控制信号被复用，并且通过使用由移动终端共享的公共信道将多路复用的公共发送功率控制信号发送到所有移动终端。 每个移动终端从接收到的公共发送功率控制信号中导出终端使用的上行链路业务信道的发送功率控制信号，并控制数据分组的发送功率。

公开(公告)号：US20080045261A1

公开(公告)日：2008-02-21

申请号：US11907537

申请日：2007-10-15

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04Q7/20

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

摘要翻译： 为执行单向通信的CDMA移动通信系统提供上行信道发送功率控制方法。 基站测量在每个信道从每个移动终端发送的数据的接收电平，并且生成每个上行链路业务信道的发送功率控制信号。 所生成的发送功率控制信号被复用，并且通过使用由移动终端共享的公共信道将多路复用的公共发送功率控制信号发送到所有移动终端。 每个移动终端从接收到的公共发送功率控制信号中导出终端使用的上行链路业务信道的发送功率控制信号，并控制数据分组的发送功率。

公开(公告)号：US06307844B1

公开(公告)日：2001-10-23

申请号：US08985281

申请日：1997-12-04

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7185

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

摘要翻译： 为执行单向通信的CDMA移动通信系统提供上行信道发送功率控制方法。 基站测量在每个信道从每个移动终端发送的数据的接收电平，并且生成每个上行链路业务信道的发送功率控制信号。 所生成的发送功率控制信号被复用，并且通过使用由移动终端共享的公共信道将多路复用的公共发送功率控制信号发送到所有移动终端。 每个移动终端从接收到的公共发送功率控制信号中导出终端使用的上行链路业务信道的发送功率控制信号，并控制数据分组的发送功率。