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21. 发明申请

US20050054319A1 Wireless communication system, and demodulation method and data rate control method therefor 失效
标题翻译：无线通信系统及其解调方法及数据速率控制方法
公开(公告)号：US20050054319A1
公开(公告)日：2005-03-10
申请号：US10760299
申请日：2004-01-21
申请人： Satoshi Tamaki , Seishi Hanaoka , Takashi Yano
发明人： Satoshi Tamaki , Seishi Hanaoka , Takashi Yano
IPC分类号： H04L27/18 , H04B7/26 , H04L1/16 , H04L27/00 , H04L27/34 , H04B1/10
CPC分类号： H04L27/3488 , H04L27/34
摘要： A transmitter and a receiver share a maximum number of transmission bits per symbol as a parameter. The transmitter modulates an encoded and interleaved transmission signal in accordance with a modulation scheme which enables the transmission of one bit or more per symbol, while the receiver demodulates a received signal based on a channel quality in accordance with a modulation scheme which has a higher modulation level as the channel quality is higher. When the number of demodulated bits per symbol is smaller than the maximum number of transmission bits per symbol, the receiver deinterleaves and decodes a received signal after the demodulation on the assumption that the received signal has likelihoods of zero as much as the number of missing bits.
摘要翻译：发射机和接收机共享每个符号的最大传输比特数作为参数。发射机根据调制方式调制编码和交织的传输信号，该调制方案能使每个符号传输一位或多位，同时接收机根据信道质量根据具有较高调制度的调制方式对接收信号进行解调通道质量较高。当每个符号的解调比特数量小于每个符号的最大传输比特数时，接收机在解调之后对接收到的信号进行解交织和解码，假设接收到的信号具有与丢失比特数一样多的零的似然性。

22. 发明申请

US20050054302A1 Adaptive modulation/demodulation method and radio communications systems 有权
标题翻译：自适应调制/解调方法和无线电通信系统
公开(公告)号：US20050054302A1
公开(公告)日：2005-03-10
申请号：US10894062
申请日：2004-07-20
申请人： Seishi Hanaoka , Satoshi Tamaki , Takashi Yano
发明人： Seishi Hanaoka , Satoshi Tamaki , Takashi Yano
IPC分类号： H04L27/18 , H04B7/26 , H04L1/00 , H04L27/00 , H04L27/34 , H04B1/38
CPC分类号： H04L1/0036 , H04L1/0003 , H04L1/0032 , H04L1/0059 , H04L5/0046 , H04L27/0012
摘要： Adaptive modulation/demodulation method in a radio communication system is provided. A modulation multi-level number in a transmission device and a demodulation multi-level number in a reception device are judged independently from each other according to a propagation condition and communication is performed by controlling the likelihood when the multi-level numbers of the transmission side and the reception side are different. The reception device can perform operation by controlling likelihood information on lower bit of the multi-level modulation even when the modulation multi-level number and the demodulation multi-level number used at the transmission side are different. Moreover, the transmission device and the reception device independently decide the modulation multi-level number and the demodulation multi-level number, thereby following an instantaneous propagation fluctuation and improving the throughput.
摘要翻译：提供了一种无线电通信系统中的自适应调制/解调方法。根据传播条件，独立地判断发送装置中的发送装置中的调制多电平号码和接收装置中的解调多电平号码，并且通过控制发送侧的多电平号码的可能性来进行通信接收端不同。即使当在发送侧使用的调制多电平号码和解调多电平号码不同时，接收装置也可以通过控制多电平调制的较低位的似然信息来执行操作。此外，发送装置和接收装置独立地决定调制多电平号码和解调多电平号码，从而跟随瞬时传播波动并提高吞吐量。

23. 发明授权

US07889758B2 Method for allocating subchannel in wireless network 有权
标题翻译：在无线网络中分配子信道的方法
公开(公告)号：US07889758B2
公开(公告)日：2011-02-15
申请号：US11209739
申请日：2005-08-24
申请人： Lei Li , Zhisheng Niu , Takashi Yano , Shiro Tanabe , Satoshi Tamaki
发明人： Lei Li , Zhisheng Niu , Takashi Yano , Shiro Tanabe , Satoshi Tamaki
IPC分类号： H04J3/00 , H04J11/00
CPC分类号： H04B7/0417 , H04B7/0452 , H04B7/0626 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04L1/06 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/0051 , H04L5/006 , H04L5/0075 , H04L5/0094 , H04L25/0204 , H04L25/0228 , H04L27/0008 , H04L27/0012 , H04W72/044 , H04W72/048
摘要： A subchannel scheduling method in a multi-user MIMO-OFDM environment modifies proportional fairness scheduling specifications and maximizes a system throughput under conditions that a minimum data transmission rate required by a multimedia user be ensured. In a method for allocating subchannels in a wireless network, plural users are subscribed in the wireless network, a base station has NT transmission antennas, a user i has NR reception antennas, a network capacity determined by the NT transmission antennas and K subcarrier groups is divided into K transmission subchannel groups, and a network bandwidth determined by the NT transmission antennas is divided into the K subchannel groups. The base station sequentially allocates channels to the users on the basis of a proportional value of a data transmission rate supported to each user and an average throughput of each user in a predetermined time and a service quality required by each user.
摘要翻译：在多用户MIMO-OFDM环境中的子信道调度方法修改比例公平调度规范，并在确保多媒体用户所要求的最小数据传输速率的条件下最大化系统吞吐量。在无线网络中分配子信道的方法中，在无线网络中订阅多个用户，基站具有NT个发送天线，用户i具有NR个接收天线，由NT个发送天线确定的网络容量，K个子载波组为划分为K个传输子信道组，由NT个发送天线确定的网络带宽分为K个子信道组。基站根据每个用户支持的数据传输速率的比例值和每个用户在预定时间内的平均吞吐量以及每个用户所需的服务质量，顺序地向用户分配信道。

24. 发明授权

US07769081B2 Transmission power control method for a wireless communication system 有权
标题翻译：一种用于无线通信系统的发射功率控制方法
公开(公告)号：US07769081B2
公开(公告)日：2010-08-03
申请号：US11896082
申请日：2007-08-30
申请人： Takashi Yano , Satoshi Tamaki
发明人： Takashi Yano , Satoshi Tamaki
IPC分类号： H04B17/02 , H04Q7/20
CPC分类号： H04W52/243 , H04W52/242 , H04W52/247 , H04W52/50
摘要： Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation of the increased communication channel capacity. In order to increase the communication channel capacity, the transmission power is determined so that the sum of noise power (=received noise power/propagation path gain) converted into one at a transmitter and the transmission power becomes constant. As a result, contrary to the background art, the transmission power is controlled to be reduced when the propagation path gain decreases and to be increased when the propagation path gain increases.
摘要翻译：控制相对于具有增益变化的传播路径的传输功率以增加通信信道容量，并且根据增加的通信信道容量的变化来控制数据速率。为了增加通信信道容量，确定发送功率，使得在发射机处转换为一个的发送功率和发送功率的噪声功率（=接收噪声功率/传播路径增益）之和变得恒定。结果，与背景技术相反，当传播路径增益减小时，传输功率被控制为减小，并且当传播路径增益增加时传输功率被增加。

25. 发明申请

US20050143092A1 Positioning system, positioning method, and positioning server 有权
标题翻译：定位系统，定位方法和定位服务器
公开(公告)号：US20050143092A1
公开(公告)日：2005-06-30
申请号：US11017135
申请日：2004-12-21
申请人： Tsuyoshi Tamaki , Takashi Yano , Satoshi Tamaki , Ryouichi Tanaka
发明人： Tsuyoshi Tamaki , Takashi Yano , Satoshi Tamaki , Ryouichi Tanaka
IPC分类号： G01S5/10 , H04W64/00 , H04Q7/20
CPC分类号： H04W64/00
摘要： To provide a positioning system, a positioning method, and a positioning server, which are capable of improving accuracy in detection of a position. In a positioning system, three or more access points connected to a terminal station by wireless communication are connected to a positioning server through a network, the access points transmit, to the positioning server, information regarding times of having received a signal transmitted from any one of the access points or the terminal station, and the positioning server measures a position of the terminal station based on the information regarding the times, the information having been received from the access points. In the positioning system, the access points select a communication method for maximizing a strength of the signal received from the terminal station and receive the signal from the terminal station, and the positioning server measures the position of the terminal station based on the information regarding the times, the information having been received from the access points.
摘要翻译：提供能够提高位置检测精度的定位系统，定位方法和定位服务器。在定位系统中，通过无线通信连接到终端站的三个或更多个接入点通过网络连接到定位服务器，接入点向定位服务器发送关于接收到从任何一个发送的信号的时间的信息的接入点或终端站，并且定位服务器根据关于时间的信息来测量终端站的位置，该信息已从接入点接收。在定位系统中，接入点选择用于使从终端接收的信号的强度最大化并从终端接收信号的通信方法，并且定位服务器基于关于终端的信息来测量终端的位置时间，从接入点接收到的信息。

26. 发明授权

US08385393B2 Transmission power control method for a wireless communication system 有权
公开(公告)号：US08385393B2
公开(公告)日：2013-02-26
申请号：US12820555
申请日：2010-06-22
申请人： Takashi Yano , Satoshi Tamaki
发明人： Takashi Yano , Satoshi Tamaki
IPC分类号： H04B7/00 , H04B17/00
CPC分类号： H04W52/243 , H04W52/242 , H04W52/247 , H04W52/50
摘要： Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation of the increased communication channel capacity. In order to increase the communication channel capacity, the transmission power is determined so that the sum of noise power (=received noise power/propagation path gain) converted into one at a transmitter and the transmission power becomes constant. As a result, contrary to the background art, the transmission power is controlled to be reduced when the propagation path gain decreases and to be increased when the propagation path gain increases.

27. 发明授权

US07233582B2 Wireless communication system and transmission power control method therefor 有权
标题翻译：无线通信系统及其传输功率控制方法
公开(公告)号：US07233582B2
公开(公告)日：2007-06-19
申请号：US10331769
申请日：2002-12-31
申请人： Satoshi Tamaki , Takashi Yano
发明人： Satoshi Tamaki , Takashi Yano
IPC分类号： H04Q7/00 , H04B1/00
CPC分类号： H04W52/343 , H04L1/20 , H04W52/24 , H04W52/346
摘要： The total amount of power for communications transmitted over channels susceptible to quality fluctuation is decreased to reduce interference with other communications and increase the system's overall capacity. When channel-encoded data is to be transmitted, the quality of a transmission channel is judged. The data is transmitted when the judged quality is higher than predefined. However, if the quality is lower than predefined, the data transmission to a wireless section is suppressed to avoid a signal transmission that cannot effectively be used at a receiving station, decrease the average transmission power, and reduce interference with other communications. Even if the channel quality is lower than predefined at the time of assigning a code word created by channel encoding, the same code word assignment operation as for a transmission portion is performed with respect to a no-transmission portion that a transmitting station does not send to a wireless section.
摘要翻译：通过易受质量波动影响的通道发送的通信总功率减少，以减少对其他通信的干扰，提高系统的整体容量。当要发送信道编码数据时，判断传输信道的质量。当判断质量高于预定义时，传送数据。然而，如果质量低于预定义，则抑制到无线部分的数据传输，以避免在接收站不能有效地使用的信号传输，降低平均传输功率，并减少与其他通信的干扰。即使信道质量低于在分配由信道编码产生的码字时的预定义的情况下，对于发送站不发送的不发送部分执行与发送部分相同的码字分配操作到无线部分。

28. 发明授权

US08355456B2 Transmitting device, receiving device, and signal processing method in radio communication system 有权
标题翻译：无线电通信系统中的发射设备，接收设备和信号处理方法
公开(公告)号：US08355456B2
公开(公告)日：2013-01-15
申请号：US12836149
申请日：2010-07-14
申请人： Satoshi Tamaki , Takashi Yano , Koki Uwano
发明人： Satoshi Tamaki , Takashi Yano , Koki Uwano
IPC分类号： H04K1/10
CPC分类号： H04L27/2626 , H04L25/03828 , H04L27/2647 , H04L27/2665
摘要： A signal frequency of an interface signal between a baseband unit and a remote radio unit is decreased by downsampling, and the strain of the signal caused by downsampling is compensated for each subcarrier before an IFFT during transmission, and after FFT during reception.
摘要翻译：通过下采样来降低基带单元和远程无线单元之间的接口信号的信号频率，并且在发送期间的IFFT之前和接收期间的FFT之后，针对每个子载波对由下采样引起的信号的应变进行补偿。

29. 发明申请

US20100255872A1 TRANSMISSION POWER CONTROL METHOD FOR A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：用于无线通信系统的传输功率控制方法
公开(公告)号：US20100255872A1
公开(公告)日：2010-10-07
申请号：US12820555
申请日：2010-06-22
申请人： Takashi Yano , Satoshi Tamaki
发明人： Takashi Yano , Satoshi Tamaki
IPC分类号： H04W52/04
CPC分类号： H04W52/243 , H04W52/242 , H04W52/247 , H04W52/50
摘要： Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation of the increased communication channel capacity. In order to increase the communication channel capacity, the transmission power is determined so that the sum of noise power (=received noise power/propagation path gain) converted into one at a transmitter and the transmission power becomes constant. As a result, contrary to the background art, the transmission power is controlled to be reduced when the propagation path gain decreases and to be increased when the propagation path gain increases.
摘要翻译：控制相对于具有增益变化的传播路径的传输功率以增加通信信道容量，并且根据增加的通信信道容量的变化来控制数据速率。为了增加通信信道容量，确定发送功率，使得在发射机处转换为一个的发送功率和发送功率的噪声功率（=接收噪声功率/传播路径增益）之和变得恒定。结果，与背景技术相反，当传播路径增益减小时，传输功率被控制为减小，并且当传播路径增益增加时传输功率被增加。

30. 发明申请

US20080014980A1 Transmission power control method for a wireless communication system 有权
公开(公告)号：US20080014980A1
公开(公告)日：2008-01-17
申请号：US11896082
申请日：2007-08-30
申请人： Takashi Yano , Satoshi Tamaki
发明人： Takashi Yano , Satoshi Tamaki
IPC分类号： H04Q7/20
CPC分类号： H04W52/243 , H04W52/242 , H04W52/247 , H04W52/50
摘要： Transmission power relative to a propagation path having a variation in gain is controlled to increase communication channel capacity, and a data rate is controlled in accordance with the variation of the increased communication channel capacity. In order to increase the communication channel capacity, the transmission power is determined so that the sum of noise power (=received noise power/propagation path gain) converted into one at a transmitter and the transmission power becomes constant. As a result, contrary to the background art, the transmission power is controlled to be reduced when the propagation path gain decreases and to be increased when the propagation path gain increases.

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