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21. 发明授权

US06031415A Matched filter circuit for spread spectrum communication 失效
标题翻译：用于扩频通信的匹配滤波电路
公开(公告)号：US06031415A
公开(公告)日：2000-02-29
申请号：US733820
申请日：1996-10-18
申请人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Mamoru Sawahashi , Fumiyuki Adachi , Sunao Takatori
发明人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Mamoru Sawahashi , Fumiyuki Adachi , Sunao Takatori
IPC分类号： H04J13/00 , H03H17/02 , H04B1/7093 , H03K5/00 , H03D1/00
CPC分类号： H03H17/0254 , H04B1/707
摘要： The present invention provides a matched filter circuit available for processing long P/N codes in a small size circuit. A matched filter circuit according to the present invention performs the following processes in the proposed invention: i) sampling and holding circuits multiply part of the number of a long code; ii) multipliers are input in parallel to the sampling and holding circuit from the first multiplier register which can hold as many PN codes as the number of the sampling and holding circuits in i); iii) the PN codes are stored in the second multiplier register of the same capacity of the first multiplier resister when there is a PN code to be used sequentially to be PN codes; and iv) the PN codes in the second multiplier register are transmitted in parallel to the first multiplier register. The PN code is input to the second multiplier register in serial.
摘要翻译：本发明提供了可用于处理小尺寸电路中的长P / N码的匹配滤波器电路。根据本发明的匹配滤波器电路在所提出的发明中执行以下处理：i）采样和保持电路乘以长码的数量的一部分; ii）乘法器与来自第一乘法器寄存器的采样和保持电路并联输入，其可以容纳与i）中的采样和保持电路的数量一样多的PN码; iii）当存在要被顺序使用的PN码为PN码时，PN码存储在第一乘法器电阻相同容量的第二乘法器寄存器中; 和iv）第二乘法器寄存器中的PN码并行发送到第一乘法器寄存器。 PN码以串行方式输入到第二个乘法器寄存器。

22. 发明授权

US5953324A CDMA mobile communication method, system and mobile station apparatus 失效
标题翻译： CDMA移动通信方式，系统和移动台装置
公开(公告)号：US5953324A
公开(公告)日：1999-09-14
申请号：US776554
申请日：1997-01-31
申请人： Fumiyuki Adachi
发明人： Fumiyuki Adachi
IPC分类号： H04B1/707 , H04B7/26 , H04L1/00 , H04W36/08 , H04W36/18 , H04W36/30 , H04J13/00
CPC分类号： H04W36/18 , H04B7/2628 , H04B7/2643 , H04L1/0041 , H04L1/0042 , H04L1/0045 , H04L1/0048 , H04B7/2621 , H04W36/30
摘要： A CDMA mobile communication system, which produces a time for monitoring peripheral base stations using different radio frequencies for carrying out hand-off between base stations using different radio frequencies without momentary cutoff of communication. A mobile station (504) of the CDMA mobile communication system discontinues error correction decoding on reception signal, outputs a user data which is not error correction decoded and, during the non-reception time in the blank time, changes over a reception frequency to a radio frequency of a neighboring base station monitor a reception level of the neighboring base station. During a hand-off period between a base station under communication (502) and a new base station (503) which differ in used frequency, the base station under communication and the new base station transmit only a user data portion, but do not transmit transmission signal in a transmission period for transmitting an error correction coding check bits. The mobile station (504) receives and demodulates the transmission signal of the base station under communication and, during an error correction coding check bit transmission period, changes over a frequency of a receiver to the frequency of the new base station to receive and demodulate the transmission signal of the new base station.
摘要翻译： PCT No.PCT / JP96 / 01460 Sec。 371日期1997年1月31日 102（e）日期1997年1月31日PCT提交1996年5月30日PCT公布。 WO96 / 38999 PCT出版物日期1996年11月5日一种CDMA移动通信系统，其产生用于监视使用不同射频的外围基站的时间，以在使用不同射频的基站之间进行切换，而不会立即切断通信。 CDMA移动通信系统的移动台（504）对接收信号中断纠错解码，输出未进行纠错解码的用户数据，在空白时间的非接收时间内，将接收频率变更为相邻基站的射频监视相邻基站的接收电平。在通信基站（502）和使用频率不同的新基站（503）之间的切换期间，通信基站和新基站仅发送用户数据部分，但不发送用于发送纠错编码校验位的发送期间的发送信号。移动站（504）在通信下接收和解调基站的发送信号，并且在纠错编码检查比特发送周期期间，将接收机的频率切换到新基站的频率，以接收和解调新基站的传输信号。

23. 发明授权

US5926512A Matched filter circuit 失效
标题翻译：匹配滤波电路
公开(公告)号：US5926512A
公开(公告)日：1999-07-20
申请号：US735787
申请日：1996-10-23
申请人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04J13/00 , H03H11/04 , H03H17/02 , H03H19/00 , H04B1/7093 , H03D1/00 , H04L27/06
CPC分类号： H03H11/04 , H03H17/0254 , Y02B60/50
摘要： A matched filter circuit for mobile communications is disclosed. The circuit may be fabricated in a small size using large-scale integration and can perform high-speed processing and double sampling at a reduced rate of power consumption. In one embodiment, a plurality of sampling and holding circuits each including a switch are divided into two groups. A control circuit successively closes one of the switches in the first group every chip time, while successively closing one of the switches in the second group at a timing shifted by one-half chip time from that of the first group, thereby enabling a double-sampling operation. Outputs of the sampling and holding circuits in each group are summed by an analog circuit with a high degree of linearity, resulting in a high processing speed combined with a reduced circuit size and power consumption.
摘要翻译：公开了一种用于移动通信的匹配滤波器电路。该电路可以使用大规模集成在小尺寸上制造，并且可以以降低的功率消耗来执行高速处理和双重采样。在一个实施例中，每个包括开关的多个采样和保持电路被分成两组。控制电路在每个码片时间连续地闭合第一组中的一个开关，同时以与第一组相比半个码片时间偏移的时间顺序地关闭第二组中的一个开关，由此，抽样操作。每个组中的采样和保持电路的输出由具有高线性度的模拟电路相加，导致高处理速度以及减小的电路尺寸和功耗。

24. 发明授权

US5914943A Apparatus and method for establishing acquisition of spreading code in CDMA transmission system 失效
标题翻译：在CDMA传输系统中建立扩展码采集的装置和方法
公开(公告)号：US5914943A
公开(公告)日：1999-06-22
申请号：US696939
申请日：1996-08-23
申请人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1/707 , H04J3/06 , H04J13/00 , H04B15/00 , H04J13/02
CPC分类号： H04J13/0077 , H04B1/70757 , H04B1/7077 , H04B1/708 , H04J3/0602 , H04B1/7095 , H04J13/0003
摘要： A CDMA system capable of quickly establishing acquisition of a long code, a spreading code with a period considerably longer than a symbol length. The received phase of the long code is estimated by inserting an a priori code into a spread signal which is spread by the long code at a fixed interval, and by detecting the start timing of receiving the a priori code, where the a priori code has a correlation value of nearly zero with the long code, and an autocorrelation value of a triangular profile. Its transmitter has an a priori code inserting circuit, and its receiver has a replica generating circuit of the a priori code. In addition, the system includes a plurality of correlators for obtaining correlation values between the received signal and the replica of the a priori code, and a circuit for obtaining the maximum correlation values and their start timings of reception among these correlation values. It estimates the start timing of the a priori code from the start timings of reception that provides the maximum correlation values, and estimates the point separated by a fixed time from the estimated start timing to be the received phase of the long code.
摘要翻译： PCT No.PCT / JP95 / 02718 Sec。 371日期：1996年8月23日 102（e）日期1996年8月23日PCT 1995年12月27日PCT PCT。公开号WO96 / 20544 日期1996年7月4日一种能够快速建立长码的采集的CDMA系统，延长码长度远远大于符号长度。通过将先验码插入到以固定间隔由长码扩展的扩展信号，并且通过检测接收先验码的开始定时来估计长码的接收相位，其中先验码具有与长码接近零的相关值，以及三角形轮廓的自相关值。其发射机具有先验码插入电路，其接收机具有先验码的副本生成电路。此外，该系统包括多个相关器，用于获得接收信号与先验码的副本之间的相关值，以及用于获得这些相关值之间的最大相关值及其开始定时接收的电路。它从提供最大相关值的接收开始定时估计先验码的开始定时，并将从估计的开始定时分离的固定时间点分离为长码的接收相位。

25. 发明授权

US5910948A Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system 失效
标题翻译：异步DS-CDMA蜂窝通信系统的采集方案和接收机
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。

26. 发明授权

US5790590A Matched filter circuit 失效
标题翻译：匹配滤波电路
公开(公告)号：US5790590A
公开(公告)日：1998-08-04
申请号：US740672
申请日：1996-10-31
申请人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H03H15/00 , H03H17/02 , H04B1/7093 , H04J13/00 , H04B15/00
CPC分类号： H04B1/7093
摘要： The present invention has an object to provide a matched filter circuit which is possible to synchronize a spreading code with an input signal. A matched filter according to the present invention samples input signal in response to three clocks from the first to the third shifted by a half cycle of a sampling signal so as to judge whether the sampling clock is ahead or behind of the input signal according to signs of input signal sampled. One clock is selected to be the sampling clock.
摘要翻译：本发明的目的是提供一种可以使扩展码与输入信号同步的匹配滤波器电路。根据本发明的匹配滤波器响应于从第一到第三的三个时钟采样输入信号，移位了采样信号的半个周期，以便根据符号判断采样时钟是否在输入信号的前面或后面的输入信号采样。选择一个时钟作为采样时钟。

27. 发明授权

US5652765A Receiver and repeater for spread spectrum communications 失效
标题翻译：接收机和中继器用于扩频通信
公开(公告)号：US5652765A
公开(公告)日：1997-07-29
申请号：US411645
申请日：1995-05-22
申请人： Fumiyuki Adachi , Mamoru Sawahashi , Akihiro Higashi , Koji Ohno , Tomohiro Dohi
发明人： Fumiyuki Adachi , Mamoru Sawahashi , Akihiro Higashi , Koji Ohno , Tomohiro Dohi
IPC分类号： H04B1/707 , H04B7/06 , H04B7/08 , H04B3/36 , H04B7/17 , H04B17/02 , H04L25/20
CPC分类号： H04B7/0894 , H04B1/712 , H04B7/0671
摘要： A repeater improving the effect of a RAKE reception. A received signal from a base station parallelly passes a first path including a first delay circuit and a second path including no delay circuit, and is transmitted to a mobile station. A received signal from the mobile station parallelly passes a third path including a second delay circuit and a fourth path including no delay circuit, and is transmitted to the base station. The delay time of the delay circuits are set at one chip interval or more of a spreading code. This forcedly produces multipath waves which are resolvable by a RAKE receiver. The RAKE receiver estimates amplitudes of desired wave components for individual delayed waves, performs weighting of the respective delayed wave components from detectors by using the estimated amplitudes, and makes symbol decision in terms of the combined weighted signal.
摘要翻译： PCT No.PCT / JP94 / 01283第 371日期：1995年5月22日 102（e）日期1995年5月22日PCT 1994年8月4日PCT PCT。第WO95 / 05037号公报日期1995年2月16日中继器改善RAKE接收的效果。来自基站的接收信号并行地通过包括第一延迟电路和不包括延迟电路的第二路径的第一路径，并被发送到移动站。来自移动站的接收信号并行地通过包括第二延迟电路的第三路径和不包括延迟电路的第四路径，并且被发送到基站。延迟电路的延迟时间设定为扩展码的一个码片间隔或更多个码片间隔。这强制产生可由RAKE接收机解析的多径波。 RAKE接收机估计各个延迟波的期望波分量的振幅，通过使用估计的幅度对来自检测器的各个延迟波分量进行加权，并根据组合的加权信号进行符号判定。

28. 发明授权

US4397036A Diversity system 失效
标题翻译：多样性系统
公开(公告)号：US4397036A
公开(公告)日：1983-08-02
申请号：US35538
申请日：1979-05-03
申请人： Kenkichi Hirade , Takeshi Hattori , Fumiyuki Adachi
发明人： Kenkichi Hirade , Takeshi Hattori , Fumiyuki Adachi
IPC分类号： H04B7/08 , H04B7/06
CPC分类号： H04B7/0865 , H04B7/0837
摘要： A diversity system utilizing a plurality of branches has been found for an angle modulated digital signal transmission. The received signal on each branch is modulated with a local signal which has the same period as the digital signal, and satisfies the orthogonal relationship with each other. The modulated signals are combined by simply summing them, and the combined signal is differentially detected. In the case of two branches, said orthogonal local signals are .sqroot.2/T.multidot. sin (2.pi./T)t, and .sqroot.2/T.multidot. cos (2.pi./T)t, where T is the bit duration of the digital signal, and said local modulation is the amplitude modulation. The present invention can provide the same diversity effect as the prior maximal ratio combining system, although the present invention does not utilize a complicated cophasing means between each branches.
摘要翻译：已经发现使用多个分支的分集系统用于角度调制的数字信号传输。每个分支上的接收信号用与数字信号具有相同周期的本地信号进行调制，并且彼此满足正交关系。通过简单地对调制信号求和来组合调制信号，差分检测组合信号。在两个分支的情况下，所述正交本地信号是2ROOT 2 / Tx sin（2π/ T）t和2ROOT 2 / Tx cos（2π/ T）t，其中T是数字信号的位持续时间，并且所述局部调制是幅度调制。本发明可以提供与现有最大比组合系统相同的分集效应，尽管本发明不利用每个分支之间的复杂的同相装置。

29. 发明申请

US20090060100A1 WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信设备和无线通信方法
公开(公告)号：US20090060100A1
公开(公告)日：2009-03-05
申请号：US11912476
申请日：2006-04-24
申请人： Akihiko Nishio , Katsuhiko Hiramatsu , Fumiyuki Adachi , Kazuaki Takeda , Hiromichi Tomeba
发明人： Akihiko Nishio , Katsuhiko Hiramatsu , Fumiyuki Adachi , Kazuaki Takeda , Hiromichi Tomeba
IPC分类号： H04L27/06 , H04J11/00
CPC分类号： H04L27/2662 , H04L25/0216 , H04L27/265
摘要： A wireless communication apparatus capable of enhancing the transmission efficiency, while maintaining a good BER characteristic. In this apparatus, a setting part (13) sets, based on the maximum delay amount of a delayed wave and also based on the expansion of impulse response of FDE, an FFT part (14) to establish an FFT section of Nc symbol, and also sets a selecting part (17) to establish a selection section of Nc−2M−Δ symbol that is shorter than the FFT section. The setting part (13) also sets the start points of FFT and selection sections established at this time for such timings that they are shifted by Nc−2M−Δ symbol from the start points of the FFT and selection sections previously established. It should be noted that the maximum delay amount of the delayed wave is Δ symbol, the expansion of impulse response of FDE is plus/minus M symbols, and the symbol block length is Nc.
摘要翻译：一种能够在保持良好的BER特性的同时提高传输效率的无线通信装置。在该装置中，设置部分（13）基于延迟波的最大延迟量并且还基于FDE的脉冲响应的扩展来设置FFT部分（14），以建立Nc符号的FFT部分，以及还设置选择部分（17）以建立比FFT部分短的Nc-2M-Delta符号的选择部分。设置部分（13）还设置在此时建立的FFT和选择部分的开始点，以使它们从先前建立的FFT和选择部分的起始点移位Nc-2M-Delta符号。应该注意的是，延迟波的最大延迟量是Delta符号，FDE的脉冲响应的扩展是正/负M个符号，符号块长度是Nc。

30. 发明授权

US07298721B2 Single-carrier/DS-CDMA packet transmitting method, uplink packet transmitting method in multi carrier/DS-CDMA mobile communication system, and structure of downlink channel in multi carrier/DS-CDMA mobile communication system 失效
标题翻译：单载波/ DS-CDMA分组发送方法，多载波/ DS-CDMA移动通信系统中的上行分组发送方法以及多载波/ DS-CDMA移动通信系统中的下行链路信道的结构
公开(公告)号：US07298721B2
公开(公告)日：2007-11-20
申请号：US09926257
申请日：2001-02-02
申请人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Takehiro Ikeda , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Takehiro Ikeda , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B7/216
CPC分类号： H04W72/1252 , H04B1/707 , H04J13/00 , H04L5/0019 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L5/0087 , H04L5/0092 , H04L5/06 , H04W72/06
摘要： The present invention provides a single carrier/DS-CDMA packet transmission method wherein a predetermined time slot is assigned to reservation demand packet transmission in regard to a spreading code, and the reservation demand packet and data packets are time-multiplexed for transmission. An uplink packet transmission method in a multi-carrier/DS-CDMA mobile communication system is also provided, wherein frames are set up in each communication channel of a subcarrier, time slots which are time-segments of the frames are set up further, and a mobile station spreads a packet to be transmitted by a spreading code and the information signal is transmitted to a base station in a predetermined time slot. A downlink channel configuration in a multi-carrier/DS-CDMA mobile communication system is further provided, wherein a plurality of communication channels assigned to each of a plurality of subcarriers are divided for every predetermined time frame, and multiplexed, and the plurality of the communication channels assigned to each subcarrier include a common-control channel used by a plurality of users in common, and communication channels peculiar to each user.
摘要翻译：本发明提供了一种单载波/ DS-CDMA分组传输方法，其中相对于扩展码将预定时隙分配给预留请求分组传输，并且预留请求分组和数据分组被时分复用以进行传输。还提供了一种在多载波/ DS-CDMA移动通信系统中的上行链路分组传输方法，其中在子载波的每个通信信道中建立帧，进一步设置作为帧的时间段的时隙，以及移动台通过扩展码扩展要发送的分组，并且在预定时隙中将信息信号发送到基站。还提供了一种多载波/ DS-CDMA移动通信系统中的下行链路信道配置，其中分配给多个子载波中的每一个的多个通信信道被划分为每个预定时间帧，并被多路复用，并且多个分配给每个子载波的通信信道包括共同使用的公共控制信道和每个用户特有的通信信道。

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