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31. 发明授权

US06999427B1 CDMA reception apparatus and received signal power measuring apparatus in CDMA mobile communication system 失效
标题翻译： CDMA接收装置和CDMA移动通信系统中的接收信号功率测量装置
公开(公告)号：US06999427B1
公开(公告)日：2006-02-14
申请号：US09619361
申请日：2000-07-19
申请人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B7/185
CPC分类号： H04W52/228 , H04B17/318 , H04B17/391 , H04W52/225 , H04W52/243
摘要： In a CDMA reception apparatus, averaging part for averaging at least one of vector, amplitude and power of received signal of a plurality of transmit power control sections is provided. Further, propagation path variation estimator for estimating a propagation path variation of the present transmit power control section from respective transmit power control sections in the past to obtain a propagation path variation estimation value and propagation path variation correction part (multiplier) for correcting by the propagation path variation estimation value are further provided, wherein the averaging part averages at least one of vector, amplitude and power of received signal of the plurality of transmit power control sections corrected by the propagation path variation correction part (multiplier). With this configuration, the measurement accuracy is improved by measuring received signal power using a plurality of slots including past slots, resulting in more accurate transmit power control.
摘要翻译：在CDMA接收装置中，提供了对多个发送功率控制部的接收信号的向量，幅度和功率中的至少一个进行平均的平均部。此外，传播路径变化估计器用于从过去的各个发射功率控制部分估计当前发射功率控制部分的传播路径变化，以获得用于通过传播校正的传播路径变化估计值和传播路径变化校正部分（乘法器）进一步提供路径变化估计值，其中平均部分对由传播路径变化校正部分（乘法器）校正的多个发射功率控制部分的接收信号的矢量，幅度和功率中的至少一个进行平均。利用这种配置，通过使用包括过去时隙的多个时隙测量接收信号功率来提高测量精度，导致更准确的发射功率控制。

32. 发明授权

US06697622B1 Control method of searching neighboring cells, mobile station, and mobile communication system 有权
标题翻译：搜索相邻小区，移动台和移动通信系统的控制方法
公开(公告)号：US06697622B1
公开(公告)日：2004-02-24
申请号：US09655122
申请日：2000-09-05
申请人： Yoshihiro Ishikawa , Seizo Onoe , Kazufumi Yunoki , Akihiro Higashi
发明人： Yoshihiro Ishikawa , Seizo Onoe , Kazufumi Yunoki , Akihiro Higashi
IPC分类号： H04Q720
CPC分类号： H04W36/0083 , H04B1/70735 , H04B1/7083 , H04B2201/70702 , H04W48/16 , H04W48/20 , H04W52/0216 , Y02D70/164 , Y02D70/20 , Y02D70/40
摘要： A control method of searching for a neighboring cell of a mobile station communicating with a base station is provided in a direct sequence CDMA mobile communication system which transmits information by carrying out double modulation using a first spreading code group and a second spreading code. The first spreading code group includes spreading codes that have a same repetition period as an information symbol period and are used in common by the base stations, and the second spreading code has a repetition period longer than the information symbol period. The base stations are assigned different second spreading codes. The control method stores at least one second spreading code and its phase into a first table, which second spreading code corresponds to a perch channel whose second spreading code and phase are known; stores a second spreading code used by a neighboring base station into a second table; searches for a perch channel whose second spreading code and phase are unknown; and searches for a perch channel whose second spreading code and phase are known. The neighboring cell search method can save the power consumption and time required for the mobile station to carry out the cell search with preventing an increase in the total cost of the system.
摘要翻译：在通过使用第一扩展码组和第二扩展码进行双重调制来发送信息的直接序列CDMA移动通信系统中，提供了搜索与基站通信的移动台的相邻小区的控制方法。第一扩展码组包括与信息符号周期具有相同重复周期的扩展码，并且由基站共同使用，并且第二扩展码具有比信息符号周期长的重复周期。基站被分配不同的第二扩展码。控制方法将至少一个第二扩展码及其相位存储在第一表中，该第二扩展码对应于其第二扩展码和相位已知的导频信道; 将相邻基站使用的第二扩展码存储到第二表中; 搜索其第二扩频码和相位未知的导频信道; 并搜索其第二扩展码和相位是已知的导频信道。相邻小区搜索方法可以节省移动台执行小区搜索所需的功耗和时间，从而防止系统总成本的增加。

33. 发明授权

US4621368A Digital transmission system 失效
标题翻译：数字传输系统
公开(公告)号：US4621368A
公开(公告)日：1986-11-04
申请号：US625153
申请日：1984-06-27
申请人： Seizo Onoe , Takeshi Hattori
发明人： Seizo Onoe , Takeshi Hattori
IPC分类号： H04L1/02 , H04L1/08 , H04L25/49
CPC分类号： H04L1/08
摘要： Fast and deep fading tends to occur in the communication between a fixed base station and a mobile station which is carried on an automobile travelling in an urban area. When connection control signals or other digital code pattern need to be transmitted between the mobile station and the fixed station, it is necessary to provide a protection system against fading. This invention relates to a protection system of the type wherein a transmitter repeats identical information for plural times and by inverting polarity. The bit error rate against fading will be thus improved and moreover, even if there is a deviation in the pattern arrangement of codes, the DC component unbalance may be avoided. The receiver evaluates the receiving condition and receives selectively the identical information which has been repeatedly transmitted. The invention provides plural circuit systems which are effective for evaluation and selection.
摘要翻译：固定基站与在城市内行驶的汽车上携带的移动台之间的通信中往往会发生快速，深度的衰落。当需要在移动台和固定台之间传输连接控制信号或其他数字码型时，需要提供防褪色保护系统。本发明涉及一种保护系统，其中发射机重复相同的信息多次，并通过反相极性。因此，相对于衰落的误码率将得到改善，并且即使代码的图案排列存在偏差，也可以避免DC分量不平衡。接收机对接收条件进行评估，并选择性地接收已经重复发送的相同信息。本发明提供了多种用于评估和选择的电路系统。

34. 发明授权

US07649859B2 Channel identifier assigning method and mobile communications system 失效
标题翻译：信道标识符分配方法和移动通信系统
公开(公告)号：US07649859B2
公开(公告)日：2010-01-19
申请号：US11264199
申请日：2005-11-01
申请人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B7/185
CPC分类号： H04W52/228 , H04B17/318 , H04B17/391 , H04W52/225 , H04W52/243
摘要： A CDMA apparatus including a propagation path variation estimator for estimating propagation path variations between respective prior transmit power control sections and a current transmit power control section to obtain propagation path variation estimation values, wherein each of the propagation path variation estimation values is obtained by estimating a propagation path variation between a different corresponding prior transmit power control section and the current transmit power control section; propagation path variation correction part for generating a plurality of corrected products, each corrected product obtained by multiplying at least one of vector, amplitude and/or power of a received signal of the different corresponding prior transmit power control section by said propagation path variation estimation value obtained by estimating the propagation path variation between the different corresponding prior transmit power control section and the current transmit power control section; and averaging part for averaging the plurality of corrected products.
摘要翻译：一种CDMA装置，包括：传播路径变化估计器，用于估计各个现有发射功率控制部分和当前发射功率控制部分之间的传播路径变化，以获得传播路径变化估计值，其中每个传播路径变化估计值是通过估计不同对应的先前发射功率控制部分与当前发射功率控制部分之间的传播路径变化; 用于产生多个校正乘积的传播路径变化校正部分，通过将不同对应的先前发送功率控制部分的接收信号的向量，幅度和/或功率中的至少一个乘以所述传播路径变化估计值而获得的每个校正乘积通过估计不同对应的先前发射功率控制部分与当前发射功率控制部分之间的传播路径变化获得的; 以及对所述多个校正乘积进行平均的平均部分。

35. 发明申请

US20060062186A1 Channel identifier assigning method and mobile communication system 失效
标题翻译：信道标识符分配方法和移动通信系统
公开(公告)号：US20060062186A1
公开(公告)日：2006-03-23
申请号：US11264199
申请日：2005-11-01
申请人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B7/216
CPC分类号： H04W52/228 , H04B17/318 , H04B17/391 , H04W52/225 , H04W52/243
摘要： A CDMA apparatus including a propagation path variation estimator for estimating propagation path variations between respective prior transmit power control sections and a current transmit power control section to obtain propagation path variation estimation values, wherein each of the propagation path variation estimation values is obtained by estimating a propagation path variation between a different corresponding prior transmit power control section and the current transmit power control section; propagation path variation correction part for generating a plurality of corrected products, each corrected product obtained by multiplying at least one of vector, amplitude and/or power of a received signal of the different corresponding prior transmit power control section by said propagation path variation estimation value obtained by estimating the propagation path variation between the different corresponding prior transmit power control section and the current transmit power control section; and averaging part for averaging the plurality of corrected products.
摘要翻译：一种CDMA装置，包括：传播路径变化估计器，用于估计各个现有发射功率控制部分和当前发射功率控制部分之间的传播路径变化，以获得传播路径变化估计值，其中每个传播路径变化估计值是通过估计不同对应的先前发射功率控制部分与当前发射功率控制部分之间的传播路径变化; 用于产生多个校正乘积的传播路径变化校正部分，通过将不同对应的先前发送功率控制部分的接收信号的向量，幅度和/或功率中的至少一个乘以所述传播路径变化估计值而获得的每个校正乘积通过估计不同对应的先前发射功率控制部分与当前发射功率控制部分之间的传播路径变化获得的; 以及对所述多个校正乘积进行平均的平均部分。

36. 发明申请

US20050265433A1 Channel estimation device and method, demodulation device and method, and fading frequency decision device and method 有权
标题翻译：信道估计装置及方法，解调装置及方法，衰落频率决策装置及方法
公开(公告)号：US20050265433A1
公开(公告)日：2005-12-01
申请号：US11194217
申请日：2005-08-01
申请人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04J13/00 , H04B1/707 , H04B1/712 , H04B7/08 , H04B7/26 , H04L25/02 , H04L27/01 , H04W16/24 , H04W28/18
CPC分类号： H04L25/0234 , H04B1/707 , H04B1/7115 , H04B2201/70701 , H04L25/0228
摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.
摘要翻译：在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号并对该导频符号进行加权和平均。此外，基于导频符号的内积值来检测衰落频率。加权因子根据检测到的衰落频率而改变。此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。所计算的信道估计值用于解调接收的数据。通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

37. 发明授权

US5258980A Radio channel switching control method 失效
标题翻译：无线电频道切换控制方法
公开(公告)号：US5258980A
公开(公告)日：1993-11-02
申请号：US684924
申请日：1991-04-24
申请人： Akihiro Maebara , Seizo Onoe , Fumiyuki Adachi , Masaharu Hata , Toshinori Fujii
发明人： Akihiro Maebara , Seizo Onoe , Fumiyuki Adachi , Masaharu Hata , Toshinori Fujii
IPC分类号： H04W36/08 , H04W56/00 , H04W72/04 , H04J3/16
CPC分类号： H04W36/18 , H04W56/00
摘要： A radio channel switching control method for a digital mobile communication system employing TDMA techniques, in which a mobile station stores the synchronized state in the current channel, switches the current channel to a new one and performs a pull-in operation for a predetermined period of time and stores the synchronized state obtained by the pull-in operation. The mobile station establishes synchronism with the new channel by repeating a sequence of steps of performing communication again in the synchronized state in the current channel and performing the pull-in operation in the stored synchronized state for the new channel. Thus, it is possible to implement radio channel switching free from momentary interruption of communication, by maintaining communication in the current channel until synchronization with the new channel is established and communication is permitted. A common reference clock is applied to a plurality of pieces of radio equipment in a base station and each radio equipment obtains a synchronized state parameter for an arbitrary slot of the channel allocated thereto. When it is judged that channel switching is necessary, the synchronized state parameter in the current channel is set in the radio equipment of the new channel, by which the radio equipment of the new channel is caused to immediately start reception in the same synchronized state as in the current channel.
摘要翻译： PCT No.PCT / JP90 / 01076 Sec。 371日期1991年4月24日 102（e）日期1991年4月24日PCT 1990年8月24日PCT PCT。公开号WO91 / 03110 日期1991年3月7日。一种采用TDMA技术的数字移动通信系统的无线电信道切换控制方法，其中移动台在当前信道中存储同步状态，将当前信道切换到新的信道，在预定时间段内操作，并存储通过拉入操作获得的同步状态。移动站通过重复在当前信道中处于同步状态的再次执行通信的步骤的顺序来与新信道建立同步，并且在新信道的存储的同步状态下执行引入操作。因此，可以通过维持当前信道中的通信，直到与新信道的同步建立并且允许通信，来实现无瞬间中断通信的无线电信道切换。公共参考时钟被应用于基站中的多个无线电设备，并且每个无线电设备获得用于其分配的信道的任意时隙的同步状态参数。当判断需要频道切换时，在新频道的无线电设备中设置当前频道中的同步状态参数，通过该新频道的无线电设备使得新频道的无线电设备立即以与在当前频道。

38. 发明授权

US5210751A Signal transmission system capable of performing re-transmission control in units of slots 失效
标题翻译：能够以时隙为单位执行重发控制的信号传输系统
公开(公告)号：US5210751A
公开(公告)日：1993-05-11
申请号：US839031
申请日：1992-02-18
申请人： Seizo Onoe , Kimitoshi Funakawa , Narumi Umeda , Tamami Suzuki
发明人： Seizo Onoe , Kimitoshi Funakawa , Narumi Umeda , Tamami Suzuki
IPC分类号： H04L1/18
CPC分类号： H04L1/1809 , H04L1/007 , H04L1/0072 , H04L1/1806
摘要： In a message-transmitting station, a signal to be transferred is divided into a plurality of time slots, an error correcting/detecting code is added to each time slot, and a re-transmission sequence order number in unit of messages, a re-transmission number and an address designating ID of a terminal device are added to a specified time slot. Then, data of the time slots are transmitted from the message-transmitting station to a message-receiving station. In the message-receiving station, it is determined whether or not any order number is missing, by demodulating and decoding the data unit containing the re-transmission sequence order number and the address, and a re-transmission request signal is transferred in accordance with the result of the comparison between the sequence number included in the demodulated, decoded data unit and the sequence number received last as an indication of the condition in which the data in each data unit has reached the message-receiving station. Further, at least one of any specified and all of the time slots are re-transmitted from the message-transmitting station in accordance with the re-transmission request signal supplied from the message-receiving station.
摘要翻译：在消息发送站中，要传送的信号被划分为多个时隙，每个时隙添加纠错/检测码，以消息为单位的重发送顺序号，发送号码和终端设备的地址指定ID被添加到指定的时隙。然后，时隙的数据从消息发送站发送到消息接收站。在消息接收站中，通过对包含重传序列号和地址的数据单元进行解调和解码来确定是否缺少任何订单号，并且根据传输请求信号传送重传请求信号将包含在解调的解码数据单元中的序列号和最后接收的序列号之间的比较结果作为每个数据单元中的数据已经到达消息接收站的条件的指示的结果。此外，根据从消息接收站提供的再发送请求信号，从消息发送站重新发送任何指定和全部时隙中的至少一个。

39. 发明授权

US5140695A Channel assignment system in mobile communication system 失效
标题翻译：移动通信系统中的通道分配系统
公开(公告)号：US5140695A
公开(公告)日：1992-08-18
申请号：US584952
申请日：1990-09-18
申请人： Shuji Yasuda , Yoshiaki Nakajima , Seizo Onoe
发明人： Shuji Yasuda , Yoshiaki Nakajima , Seizo Onoe
IPC分类号： H04W72/08
CPC分类号： H04W72/048 , H04W72/087
摘要： In a mobile communication system between a mobile station and a telephone network through a base station which assigns a communication channel so that it satisfies required communication quality or D/U ratio, said base station comprises a moving speed detector (22) for measuring moving speed of the mobile station, and a D/U ratio generator (22A) responsive of output of said moving speed detector (22) for providing said required communication quality. The required communication quality depends upon the moving speed of a mobile station, and a communication channel is selected to be the minimum quality channel as far as it satisfies said required communication quality. Thus, the communication quality is always higher than the requested threshold quality level, and the effective reuse of frequencies is improved.

40. 发明授权

US08295332B2 Channel estimation device and method, demodulation device and method, and fading frequency decision device and method 有权
标题翻译：信道估计装置及方法，解调装置及方法，衰落频率决策装置及方法
公开(公告)号：US08295332B2
公开(公告)日：2012-10-23
申请号：US13033035
申请日：2011-02-23
申请人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
发明人： Yukihiko Okumura , Hidehiro Ando , Masafumi Usuda , Yoshihiro Ishikawa , Seizo Onoe
IPC分类号： H04B1/69 , H04L25/20
CPC分类号： H04L25/0234 , H04B1/707 , H04B1/7115 , H04B2201/70701 , H04L25/0228
摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.
摘要翻译：在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号并对该导频符号进行加权和平均。此外，基于导频符号的内积值来检测衰落频率。加权因子根据检测到的衰落频率而改变。此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。所计算的信道估计值用于解调接收的数据。通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

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