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123 条记录 (耗时 0.025 秒)

    Pseudo-noise generating apparatus
    1.
    发明授权
    Pseudo-noise generating apparatus 有权
    伪噪声发生装置

    公开(公告)号：US06275520B1

    公开(公告)日：2001-08-14

    申请号：US09198199

    申请日：1998-11-23

    申请人： Takaharu Nakamura ,  Kazuo Kawabata ,  Kazuhisa Obuchi ,  Hajime Hamada

    发明人： Takaharu Nakamura ,  Kazuo Kawabata ,  Kazuhisa Obuchi ,  Hajime Hamada

    IPC分类号： H04B1707

    CPC分类号： H04J13/0022 ,  H04B1/707 ,  H04J13/10

    摘要： A pseudo-noise generating apparatus capable of starting a pseudo-noise sequence from an arbitrary phase using compact processing circuitry. Tap selection patterns corresponding to a plurality of phase shift amounts are stored in advance in a ROM. By giving a phase shift amount to the ROM and setting the corresponding tap selection pattern in AND gates, the pseudo-noise sequence generated by the pseudo-noise generator is shifted in phase, and is loaded into a shift register. After setting a new phase amount in the ROM, the contents of the shift register are transferred into a shift register in the pseudo-noise generator. By repeating this operation, the desired phase shift is accomplished as a sum of a plurality of phase shift amounts.

    摘要翻译： 一种伪噪声发生装置，其能够使用紧凑的处理电路从任意相位开始伪噪声序列。 将与多个相移量相对应的抽头选择模式预先存储在ROM中。 通过给予ROM的相移量并将对应的抽头选择模式设置在与门中，由伪噪声发生器产生的伪噪声序列同相移位，并被加载到移位寄存器中。 在ROM中设置新的相位量之后，移位寄存器的内容被传送到伪噪声发生器中的移位寄存器中。 通过重复该操作，期望的相移作为多个相移量的总和来完成。

    Base station host apparatus used in mobile communication system which employs a site diversity receiving method and a signal processing method
    4.
    发明授权
    Base station host apparatus used in mobile communication system which employs a site diversity receiving method and a signal processing method 失效
    在采用现场分集接收方式和信号处理方法的移动通信系统中使用的基站主机装置

    公开(公告)号：US06320852B1

    公开(公告)日：2001-11-20

    申请号：US09033175

    申请日：1998-03-02

    申请人： Kazuhisa Obuchi ,  Takaharu Nakamura ,  Kazuo Kawabata ,  Hiroaki Iwamoto ,  Yoshiharu Tajima ,  Kenji Suda ,  Tetsuya Yano

    发明人： Kazuhisa Obuchi ,  Takaharu Nakamura ,  Kazuo Kawabata ,  Hiroaki Iwamoto ,  Yoshiharu Tajima ,  Kenji Suda ,  Tetsuya Yano

    IPC分类号： G08C1500

    CPC分类号： H04L1/0059 ,  H04L1/0047 ,  H04L1/0061 ,  H04L1/06

    摘要： A technique used in a mobile communications system. A mobile terminal station transmits a signal subjected to an error-correction encoding processing. Each of a plurality of base stations receives the signal transmitted from the mobile terminal station via the wireless line, performs an error-correction decoding processing for the received signal, and transmits an error-correction decoded signal to a base-station host apparatus via the wired line. The base-station host apparatus performs an error-correction encoding processing for each of the signals received from the base stations, composes the thus error-correction encoded signals into one signal, and performs an error-correction decoding processing for the composed signal. The technique can improve the error rate of a received signal without increasing the amount of signal data flowing between the base stations and the base-station host apparatus.

    摘要翻译： 用于移动通信系统的技术。 移动终端发送经过纠错编码处理的信号。 多个基站中的每一个基站经由无线线路接收从移动终端发送的信号，对接收到的信号进行纠错解码处理，并通过该基站主机装置向纠错解码信号发送纠错解码信号 有线线。 基站主机装置对从基站接收的每个信号执行纠错编码处理，将由此纠错编码的信号组成一个信号，并对合成信号进行纠错解码处理。 该技术可以提高接收信号的错误率，而不会增加在基站和基站主机设备之间流动的信号数据量。

    Communication method and communication apparatus
    7.
    发明申请
    Communication method and communication apparatus 审中-公开
    通信方式和通信设备

    公开(公告)号：US20070223609A1

    公开(公告)日：2007-09-27

    申请号：US11727282

    申请日：2007-03-26

    申请人： Kazuhisa Obuchi ,  Hideto Furukawa ,  Kazuo Kawabata ,  Yoshiharu Tajima ,  Yoshihiro Kawasaki

    发明人： Kazuhisa Obuchi ,  Hideto Furukawa ,  Kazuo Kawabata ,  Yoshiharu Tajima ,  Yoshihiro Kawasaki

    IPC分类号： H04K1/10

    CPC分类号： H04W36/02 ,  H04L47/34

    摘要： For transmitting predetermined information to a second communication station via a first communication station, the second communication station receives the predetermined information via one first communication station from among a plurality of the first communication stations. Upon transfer of a function of transferring the predetermined information to the second communication station to another first communication station, the another first communication station receives the predetermined information from the one first communication station, and transfers the same to the second communication station, with attaching distinction information to the predetermined information for distinguishing between the predetermined information transferred to the second communication station via the another first communication station and the predetermined information received from the another first communication station directly.

    摘要翻译： 为了经由第一通信站向第二通信站发送预定信息，第二通信站从多个第一通信站经由一个第一通信站接收预定信息。 一旦将预定信息传送到第二通信站到另一第一通信站的功能，则另一第一通信站从一个第一通信站接收预定信息，并将其传送到第二通信站，并附加区分 用于区分经由另一第一通信站传送到第二通信站的预定信息和从另一第一通信站直接接收的预定信息的预定信息的信息。

    Packet transmission apparatus
    8.
    发明申请
    Packet transmission apparatus 审中-公开
    分组传输装置

    公开(公告)号：US20070217341A1

    公开(公告)日：2007-09-20

    申请号：US11472094

    申请日：2006-06-21

    申请人： Kazuo Kawabata ,  Kazuhisa Obuchi ,  Yoshiharu Tajima

    发明人： Kazuo Kawabata ,  Kazuhisa Obuchi ,  Yoshiharu Tajima

    IPC分类号： H04J1/16

    CPC分类号： H04L1/1877 ,  H04L1/1809 ,  H04L1/188 ,  H04L2001/0092 ,  H04W28/06

    摘要： Wasteful use of radio resources is minimized in a packet transmission system which performs retransmission control at a higher layer. When transmission of a segment has failed at a lower layer and, for example, when the number of lower-layer retransmit requests from an error detection unit at the lower layer has exceeded a predetermined threshold, any other segment remaining to be transmitted in a packet of which the failed segment forms a part is discarded and, at the same time, a retransmit request is sent to a retransmission control unit at the higher layer.

    摘要翻译： 在更高层执行重传控制的分组传输系统中，无线资源的浪费被最小化。 当传输段在较低层发生故障时，例如，当来自较低层的错误检测单元的较低层重发请求的数量已经超过预定阈值时，剩余的要在分组中传输的任何其他段 其中失败的段形成一部分被丢弃，并且同时向更高层的重传控制单元发送重传请求。

    System and method for code division multiple access communication, and base station and terminal apparatus for same system
    9.
    发明授权
    System and method for code division multiple access communication, and base station and terminal apparatus for same system 有权
    用于码分多址通信的系统和方法，以及用于同一系统的基站和终端装置

    公开(公告)号：US06647002B1

    公开(公告)日：2003-11-11

    申请号：US09351197

    申请日：1999-07-09

    申请人： Kenji Suda ,  Kazuo Kawabata ,  Kazuhisa Obuchi

    发明人： Kenji Suda ,  Kazuo Kawabata ,  Kazuhisa Obuchi

    IPC分类号： H04B7216

    CPC分类号： H04W72/1278 ,  H04L1/1642 ,  H04L1/1854 ,  H04L1/188 ,  H04L1/1887 ,  H04W72/1242 ,  H04W74/008 ,  H04W74/0833 ,  H04W74/0866

    摘要： In a code division multiple access communicating system, a base station has a receiving means receiving access signals from plural terminal apparatus, and an acknowledge information transmitting means collectively putting acknowledge information to reception of the access signals for the terminal apparatus in a transmission frame when the receiving means receives the access signals from the terminal apparatus and transmitting the frame to the plural terminal apparatus, while each of the terminal apparatus has an acknowledge information receiving means receiving a plural pieces of acknowledge information from the acknowledge information transmitting means of the base station, and a transmitting means again accessing to the base station according to the acknowledge information for its own terminal apparatus among the plural pieces of acknowledge information, thereby avoiding conflict of access timings between the terminal apparatus whose acknowledge information has been put, and thus suppressing a decrease of the throughput.

    摘要翻译： 在码分多址通信系统中，基站具有从多个终端装置接收接入信号的接收装置，以及确认信息发送装置，当发送帧中的终端装置接收到接收信号时， 接收装置从终端装置接收接收信号并将该帧发送到多个终端装置，而每个终端装置具有从基站的确认信息发送装置接收多条确认信息的确认信息接收装置， 以及发送装置，根据多个确认信息中的本身的终端装置的确认信息再次访问基站，从而避免已经放入了确认信息的终端装置之间的访问定时的冲突， 降低吞吐量。

    Handover method, base station, mobile station, and mobile communication system
    10.
    发明授权
    Handover method, base station, mobile station, and mobile communication system 有权
    移交方式，基站，移动台，移动通信系统

    公开(公告)号：US06597674B1

    公开(公告)日：2003-07-22

    申请号：US09371344

    申请日：1999-08-10

    申请人： Kazuhisa Obuchi ,  Kazuo Kawabata ,  Tetsuya Yano

    发明人： Kazuhisa Obuchi ,  Kazuo Kawabata ,  Tetsuya Yano

    IPC分类号： H04Q700

    CPC分类号： H04W36/02 ,  H04W36/18

    摘要： The present invention is directed to a handover method, a base station, and a mobile station for a CDMA mobile communication system, to improve the efficiency of inter-frequency handover. Handover is achieved between a mobile station and distributed base stations and the like. The base stations have different traffic channel frequencies. In a normal mode, a signal unit transmitted through a traffic channel consists of four frames. In a compression mode, the base station temporally compresses two normal frames into a single frame period and then transmits the frames twice through the traffic channel. The mobile station switches the reception frequency of a present traffic channel and the reception frequency of a perch channel of the destination base station at intervals of two normal-mode frames at the head of each frame received from the perch channel. The mobile station then restores frames received from the traffic channel in the compression mode to the original frames and processes them. At the same time, the mobile station extracts a system frame number from two frames received from the perch channel.

    摘要翻译： 本发明涉及用于CDMA移动通信系统的切换方法，基站和移动台，以提高频率间切换的效率。 在移动台和分布式基站等之间实现切换。 基站具有不同的业务信道频率。 在正常模式下，通过业务信道发送的信号单元由四个帧组成。 在压缩模式中，基站将两个正常帧时间压缩为单个帧周期，然后通过业务信道发送两帧。 移动台在从导频信道接收的每帧的头部以两个正常模式帧的间隔切换当前业务信道的接收频率和目的地基站的导频信道的接收频率。 然后，移动台将以压缩模式从业务信道接收到的帧恢复到原始帧并对其进行处理。 同时，移动台从从导频信道接收的两帧中提取系统帧号。