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1. 发明授权

US6097711A DS-CDMA transmission method 失效
标题翻译： DS-CDMA传输方式
公开(公告)号：US6097711A
公开(公告)日：2000-08-01
申请号：US865591
申请日：1997-05-29
申请人： Koichi Okawa , Koji Ohno , Mamoru Sawahashi , Shinji Uebayashi , Yukihiko Okumura
发明人： Koichi Okawa , Koji Ohno , Mamoru Sawahashi , Shinji Uebayashi , Yukihiko Okumura
IPC分类号： H04W88/00 , H04B1/707 , H04B7/24 , H04B7/26 , H04J11/00 , H04J13/00 , H04B7/216 , H04B3/10 , H04J1/16
CPC分类号： H04J13/00 , H04B7/2637 , H04B2201/70701 , H04J13/0077
摘要： A DS-CDMA transmission method capable of improving the accuracy of channel estimation using pilot symbols by eliminating cross-correlation between pilot symbols inserted into code channels in CDMA multiplexing carrying out fast signal transmission. In each frame assembler, the pilot symbols, which are used for channel estimation for coherent detection, are inserted into coded information data on code channels at fixed intervals, and then the data is modulated by the modulator. The modulated data symbols in each code channel from the modulator are spread by the spreading modulator, the pilot symbols are spread using a spreading code, whereas the information symbols are spread using different spreading codes assigned to respective code channels. The spread signals of the code channels are summed up by the adder to be transmitted.
摘要翻译：一种DS-CDMA传输方法，其能够通过消除在执行快速信号传输的CDMA复用中插入到码信道中的导频符号之间的互相关，来提高使用导频符号的信道估计的精度。在每个帧汇编器中，用于相干检测的信道估计的导频符号以固定的间隔插入到代码信道的编码信息数据中，然后由调制器调制数据。来自调制器的每个码信道中的调制数据符号由扩展调制器扩展，导频符号使用扩展码进行扩展，而信息符号使用分配给各个代码信道的不同扩频码进行扩展。代码通道的扩展信号由加法器求和以发送。

2. 发明授权

US06842442B2 DS-CDMA transmission method 有权
标题翻译： DS-CDMA传输方式
公开(公告)号：US06842442B2
公开(公告)日：2005-01-11
申请号：US09218521
申请日：1998-12-22
申请人： Koichi Okawa , Koji Ohno , Mamoru Sawahashi , Shinji Uebayashi , Yukihiko Okumura
发明人： Koichi Okawa , Koji Ohno , Mamoru Sawahashi , Shinji Uebayashi , Yukihiko Okumura
IPC分类号： H04W88/00 , H04B1/707 , H04B7/24 , H04B7/26 , H04J11/00 , H04J13/00 , H04B7/216
CPC分类号： H04J13/00 , H04B7/2637 , H04B2201/70701 , H04J13/0077
摘要： A DS-CDMA transmission method capable of improving the accuracy of channel estimation using pilot symbols by eliminating cross-correlation between pilot symbols inserted into code channels in CDMA multiplexing carrying out fast signal transmission. In each frame assembler, the pilot symbols, which are used for channel estimation for coherent detection, are inserted into coded information data on code channels at fixed intervals, and then the data is modulated by the modulator. The modulated data symbols in each code channel from the modulator are spread by the spreading modulator, the pilot symbols are spread using a spreading code, whereas the information symbols are spread using different spreading codes assigned to respective code channels. The spread signals of the code channels are summed up by the adder to be transmitted.
摘要翻译：一种DS-CDMA传输方法，其能够通过消除在执行快速信号传输的CDMA复用中插入到码信道中的导频符号之间的互相关，来提高使用导频符号的信道估计的精度。在每个帧汇编器中，用于相干检测的信道估计的导频符号以固定的间隔插入到代码信道的编码信息数据中，然后由调制器调制数据。来自调制器的每个码信道中的调制数据符号由扩展调制器扩展，导频符号使用扩展码进行扩展，而信息符号使用分配给各个代码信道的不同扩频码进行扩展。代码通道的扩展信号由加法器求和以发送。

3. 发明授权

US5586113A CDMA communications method and system 失效
标题翻译： CDMA通信方式和系统
公开(公告)号：US5586113A
公开(公告)日：1996-12-17
申请号：US335089
申请日：1994-11-07
申请人： Fumiyuki Adachi , Mamoru Sawahashi , Tomohiro Dohi , Shinji Uebayashi
发明人： Fumiyuki Adachi , Mamoru Sawahashi , Tomohiro Dohi , Shinji Uebayashi
IPC分类号： H04W76/02 , H04B7/26 , H04J13/00 , H04W76/00
CPC分类号： H04B7/264
摘要： A CDMA communications method capable of multiplex transmission of data over a wide range from a low rate to high rate such as image data without a considerable increase in a circuit scale. A fundamental transmission rate is determined, for example, at 32 kbps, a rate higher than 8 kbps conventionally used. The data whose transmission rate is equal to the fundamental transmission rate is transmitted in frames including no vacant portion. Data whose transmission rate is lower than the fundamental transmission rate (16 kbps, for example) is transmitted in frames including vacant portions. The vacant portions are not transmitted. This makes it possible to receive data through other channels during a time period associated with the vacant portions. Data of a higher transmission rate, 128 kbps, for example, can be multiplexed and transmitted through four channels using different spreading codes.
摘要翻译：一种CDMA通信方法，其能够在诸如图像数据的低速率到高速率的宽范围内多路传输数据，而不会显着增加电路规模。确定基本传输速率，例如以32kbps，高于常规使用的8kbps的速率。传输速率等于基本传输速率的数据以包括空格部分在内的帧发送。传输速率低于基本传输速率（例如16kbps）的数据在包括空白部分的帧中传输。空的部分不被传送。这使得可以在与空闲部分相关联的时间段期间通过其他信道接收数据。例如，128kbps的较高传输速率的数据可以通过使用不同扩展码的四个信道进行复用和传输。

4. 发明授权

US6034952A Method and instrument for measuring receiving SIR and transmission power controller 失效
标题翻译：测量接收SIR和传输功率控制器的方法和仪器
公开(公告)号：US6034952A
公开(公告)日：2000-03-07
申请号：US983412
申请日：1997-12-12
申请人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B7/005 , H04J13/00
CPC分类号： H04W52/241 , H04B17/336
摘要： An SIR measuring apparatus with a simple configuration capable of improving the accuracy of received SIR measurement in CDMA mobile radio equipment using pilot symbols. A received signal (20) is input to a synchronization detector (21) that regenerates the clock timing of symbols and frame timing equivalent to the repetition period of the pilot signal. An interpolating coherent detector (22) produces information symbols (23) obtained from the received signal (20) through absolute phase coherent detection. A decision signal power calculator (24) obtains desired wave power values. A quasi-interference power calculator (25) obtains differences between the power values of the information symbols and a fading envelope, and adopts the differences as the quasi-interference power. Integrators (26 and 27) integrate received desired wave power and quasi-interference wave power. An SIR measuring portion (28) divides an averaged received desired wave power integral by an averaged quasi-interference power integral to obtain the received SIR (29).
摘要翻译： PCT No.PCT / JP97 / 01289第 371日期1997年12月12日 102（e）日期1997年12月12日PCT提交1997年4月14日PCT公布。第WO97 / 39545号公报日期1997年10月23日具有能够提高使用导频符号的CDMA移动无线电设备中的接收SIR测量精度的简单配置的SIR测量装置。接收信号（20）被输入到同步检测器（21），该同步检测器重新产生与导频信号的重复周期相当的符号的时钟定时和帧定时。内插相干检测器（22）通过绝对相位相干检测产生从接收信号（20）获得的信息符号（23）。决定信号功率计算器（24）获得期望的波功率值。准干扰功率计算器（25）获得信息符号的功率值和衰落包络之间的差异，并将该差作为准干扰功率。积分器（26和27）集成了所需的波功率和准干扰波功率。 SIR测量部分（28）将平均的接收期望波功率积分除以平均准干扰功率积分以获得接收SIR（29）。

5. 发明授权

US06341224B1 Power controller for mobile communication system wherein a signal to interference threshold is dynamically moved based on an error rate measurement 失效
标题翻译：用于移动通信系统的功率控制器，其中基于错误率测量动态地移动信号与干扰阈值
公开(公告)号：US06341224B1
公开(公告)日：2002-01-22
申请号：US09029534
申请日：1998-02-27
申请人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi
发明人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi
IPC分类号： H04B100
CPC分类号： H04W52/12 , H04L1/0001 , H04L1/002 , H04L1/203 , H04W52/08 , H04W52/18 , H04W52/20 , H04W52/225 , H04W52/24
摘要： An error rate of received signal is measured by a received signal error measuring unit 32, and a target SIR is changed by a target SIR decision unit using the error rate. It is also possible to detect error rate of received signal in an unit of frame using a CRC signal of a frame. It is further possible to detect error rate of received signal by detecting errors of known pilot signals inserted in a constant interval.
摘要翻译：接收信号的误差率由接收信号误差测量单元32测量，并且目标SIR由目标SIR判定单元使用错误率改变。也可以使用帧的CRC信号来检测以帧为单位的接收信号的错误率。还可以通过检测以恒定间隔插入的已知导频信号的误差来检测接收信号的错误率。

6. 发明申请

US20070286129A1 SINGLE CARRIER/DS-CDMA PACKET TRANSMISSION METHOD, AN UPLINK PACKET TRANSMISSION METHOD IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM, AND A STRUCTURE OF A DOWNLINK CHANNEL IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM 审中-公开
公开(公告)号：US20070286129A1
公开(公告)日：2007-12-13
申请号：US11831189
申请日：2007-07-31
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： H04B7/00
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.

7. 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。

8. 发明授权

US08005110B2 Single carrier/DS-CDMA packet transmission method, an uplink packet transmission method in a multi-carrier/DS-CDMA mobile communications system, and a structure of a downlink channel in a multi-carrier/DS-CDMA mobile communications system 失效
标题翻译：单载波/ DS-CDMA分组传输方法，多载波/ DS-CDMA移动通信系统中的上行链路分组传输方法以及多载波/ DS-CDMA移动通信系统中的下行链路信道的结构
公开(公告)号：US08005110B2
公开(公告)日：2011-08-23
申请号：US11837981
申请日：2007-08-13
申请人： Koichi Okawa , Hiroyuki Atarashi , Sadayuki Abeta , Mamoru Sawahashi
发明人： Koichi Okawa , Hiroyuki Atarashi , Sadayuki Abeta , Mamoru Sawahashi
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，进一步建立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。

9. 发明申请

US20070291701A1 SINGLE CARRIER/DS-CDMA PACKET TRANSMISSION METHOD, AN UPLINK PACKET TRANSMISSION METHOD IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM, AND A STRUCTURE OF A DOWNLINK CHANNEL IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM 失效
标题翻译：单载波/ DS-CDMA分组传输方法，多载波/ DS-CDMA移动通信系统中的上行链路分组传输方法，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：US20070291701A1
公开(公告)日：2007-12-20
申请号：US11837981
申请日：2007-08-13
申请人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Mamoru Sawahashi
发明人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Mamoru Sawahashi
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。

10. 发明授权

US5623486A Transmission power control method and apparatus for mobile communications using a CDMA (code division multiple access) system 失效
标题翻译：使用CDMA（码分多址）系统的移动通信的发送功率控制方法和装置
公开(公告)号：US5623486A
公开(公告)日：1997-04-22
申请号：US442955
申请日：1995-05-17
申请人： Tomohiro Dohi , Mamoru Sawahashi , Koji Ohno
发明人： Tomohiro Dohi , Mamoru Sawahashi , Koji Ohno
IPC分类号： H04W52/04 , H04B7/005 , H04B7/26 , H04J13/00 , H04L1/00 , H04W52/00 , H04W52/02 , H04W52/08
CPC分类号： H04L1/0054 , H04L1/0072 , H04W52/0245 , H04W52/08
摘要： A transmission power control method is disclosed for controlling transmission power of radio communications in a CDMA system. The transmission power of a first transmitted signal transmitted from a first station is determined by a transmission power control signal contained in a second transmitted signal sent from a second station. The first station receives the second transmitted signal in the form of convolutional codes, and decodes it by using a first Viterbi decoder and a second Viterbi decoder. The first and second Viterbi decoders includes path memories with the path history length of different first predetermined lengths. The transmission power control signal contained in the second transmitted signal is extracted from the output of the second Viterbi decoder, whereas the other information data is obtained from the output of the first Viterbi decoder. The first station controls the transmission power of the first transmitted signal on the basis of the extracted transmission power control signal.
摘要翻译：公开了用于控制CDMA系统中的无线电通信的发送功率的发送功率控制方法。从第一站发送的第一发送信号的发送功率由包含在从第二站发送的第二发送信号中的发送功率控制信号确定。第一站以卷积码的形式接收第二发送信号，并通过使用第一维特比解码器和第二维特比解码器进行解码。第一和第二维特比解码器包括具有不同的第一预定长度的路径历史长度的路径存储器。从第二维特比解码器的输出中提取包含在第二发送信号中的发送功率控制信号，而从第一维特比解码器的输出获得其他信息数据。第一站基于所提取的发送功率控制信号来控制第一发送信号的发送功率。

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