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11. 发明申请

US20060165190A1 Adaptive modulation method and coding rate control method 失效
标题翻译：自适应调制方法和编码速率控制方法
公开(公告)号：US20060165190A1
公开(公告)日：2006-07-27
申请号：US11066185
申请日：2005-02-25
申请人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
发明人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
IPC分类号： H04L5/12
CPC分类号： H04L1/1671 , H04L1/0003 , H04L1/0023 , H04L1/1812
摘要： In a radio communication system, transmitter and receiver stations share information on a maximum number of bits communicated per symbol. The transmitter station encodes a signal with sufficient error correcting capabilities to create a codeword. The transmitter station allocates the bits from the codeword to each symbol, modulates the symbols using a modulation type which processes symbols each having a number of bits equal to or smaller than the maximum number of bits per symbol, and transmits the modulated symbols. The receiver station demodulates the symbols using a modulation type which processes a larger number of bits per symbol as the transmission path quality is higher from among modulation types which process symbols having a number of bits equal to or smaller than the maximum number of bits per symbol.
摘要翻译：在无线电通信系统中，发射机和接收机站共享关于每个符号传送的最大比特数的信息。发射机站对具有足够纠错能力的信号进行编码以产生码字。发送站从码字分配每个符号的比特，使用调制类型对符号进行调制，该调制类型处理每个符号的数目等于或小于每个符号的最大比特数的符号，并发送调制符号。接收站使用调制类型来解调符号，因为随着传输路径质量越高，处理具有等于或小于每个符号的最大比特数的比特数的符号的调制类型中，每个符号处理较大数量的比特。

12. 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。

13. 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.

14. 发明授权

US07656960B2 Adaptive modulation method and coding rate control method 失效
标题翻译：自适应调制方法和编码速率控制方法
公开(公告)号：US07656960B2
公开(公告)日：2010-02-02
申请号：US11066185
申请日：2005-02-25
申请人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
发明人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
IPC分类号： H04L5/12
CPC分类号： H04L1/1671 , H04L1/0003 , H04L1/0023 , H04L1/1812
摘要： In a radio communication system, transmitter and receiver stations share information on a maximum number of bits communicated per symbol. The transmitter station encodes a signal with sufficient error correcting capabilities to create a codeword. The transmitter station allocates the bits from the codeword to each symbol, modulates the symbols using a modulation type which processes symbols each having a number of bits equal to or smaller than the maximum number of bits per symbol, and transmits the modulated symbols. The receiver station demodulates the symbols using a modulation type which processes a larger number of bits per symbol as the transmission path quality is higher from among modulation types which process symbols having a number of bits equal to or smaller than the maximum number of bits per symbol.
摘要翻译：在无线电通信系统中，发射机和接收机站共享关于每个符号传送的最大比特数的信息。发射机站对具有足够纠错能力的信号进行编码以产生码字。发送站从码字分配每个符号的比特，使用调制类型对符号进行调制，该调制类型处理每个符号的数目等于或小于每个符号的最大比特数的符号，并发送调制符号。接收站使用调制类型来解调符号，因为随着传输路径质量越高，处理具有等于或小于每个符号的最大比特数的比特数的符号的调制类型中，每个符号处理较大数量的比特。

15. 发明授权

US07447269B2 Method and adaptive modulation in multi-carrier communication 有权
标题翻译：多载波通信中的方法和自适应调制
公开(公告)号：US07447269B2
公开(公告)日：2008-11-04
申请号：US10926143
申请日：2004-08-26
申请人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
发明人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
IPC分类号： H04L27/00
CPC分类号： H04L27/2608 , H04L1/0003 , H04L1/0009 , H04L1/0026
摘要： In a radio-communication system and a radio station, one or more subcarriers are grouped, and the maximum bit number per symbol of the modulation method used for each subcarrier is determined for each group and shared between a transmitting station and a receiving station. The transmitting station divides and allocates a coded signal to subcarriers in accordance with the bit number per symbol, modulates each of the allocated signals by a predetermined modulation method, and transmits the modulated signals. The receiving station demodulates the received signal by the predetermined modulation method, adds a signal having zero likelihood when the bit number per symbol of a modulation method for demodulation is different from a maximum bit number, and decodes the demodulated signal by summarizing the demodulated results.
摘要翻译：在无线电通信系统和无线电台中，对一个或多个子载波进行分组，并且为每个组确定用于每个子载波的调制方法的每个码元的最大比特数，并在发射台和接收台之间共享。发送站根据每个符号的比特数将编码的信号分配并分配给子载波，通过预定的调制方法对每个分配的信号进行调制，并发送调制的信号。接收站通过预定的调制方式对接收到的信号进行解调，当解调用调制方式的每个符号的比特数与最大比特数不同时，添加具有零似然性的信号，并且通过汇总解调结果对解调信号进行解码。

16. 发明授权

US07363007B2 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：US07363007B2
公开(公告)日：2008-04-22
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： H04B7/00
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。

17. 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。

18. 发明申请

US20070104165A1 MIMO system with plural access points 审中-公开
标题翻译：具有多个接入点的MIMO系统
公开(公告)号：US20070104165A1
公开(公告)日：2007-05-10
申请号：US11501045
申请日：2006-08-09
申请人： Seishi Hanaoka , Takashi Yano , Satoshi Tamaki
发明人： Seishi Hanaoka , Takashi Yano , Satoshi Tamaki
IPC分类号： H04Q7/24
CPC分类号： H04W88/085 , H04B7/022 , H04B7/0417
摘要： A prior art MIMO technique assumes one-to-one communication in which a transmitter and a receiver exist and does not assume a cellular system in which plural access points and access terminals exist. When the prior art is applied to the cellular system, the characteristic can be deteriorated. MIMO signal processing is not performed in access points. Signal processing units in the access points are integrated into an access point controller controlling plural access points and the MIMO signal processing for plural access points is performed together.
摘要翻译：现有技术的MIMO技术假设存在发射机和接收机的一对一通信，并且不假定存在多个接入点和接入终端的蜂窝系统。当将现有技术应用于蜂窝系统时，可能劣化特性。在接入点不执行MIMO信号处理。接入点中的信号处理单元被集成到控制多个接入点的接入点控制器中，并且一起执行多个接入点的MIMO信号处理。

19. 发明申请

US20060165189A1 Adaptive modulation scheme and coding rate control method 失效
公开(公告)号：US20060165189A1
公开(公告)日：2006-07-27
申请号：US11333199
申请日：2006-01-18
申请人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
发明人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
IPC分类号： H04K1/10
CPC分类号： H04L1/0003 , H04L1/0007 , H04L1/1812
摘要： A radio communication system for enabling control of a modulation scheme following variation in the propagation channel and control of a coding rate in a small amount of delay and arithmetic operation. In order to attain the object explained above, a transmitter station and a receiver station use in common the information of the maximum number of bits used for communication of each symbol. The transmitter station generates codeword by previously encoding the communication signal with the code having sufficient error correcting capability, assigns, to each symbol, the codeword to result in the maximum number of bits per symbol, and modulates and transmits the bits using the modulation scheme in which the number of bits per symbol is equal to or less than the maximum number of bits per symbol. Meanwhile, the receiver station demodulates, for each symbol, the bits with the modulation scheme, in which the number of bits per symbol is larger as the propagation channel quality is higher, among the modulation schemes in which the number of bits per symbol is less than the maximum number of bits per symbol and summarizes the demodulation results and executes the decoding process by adding the signal of zero likelihood to restore the shortage when the total sum of the number of bits per symbol in the modulation scheme used for the demodulation becomes equal to or larger than the predetermined value.

20. 发明申请

US20060008014A1 Method and adaptive modulation in multi-carrier communication 有权
标题翻译：多载波通信中的方法和自适应调制
公开(公告)号：US20060008014A1
公开(公告)日：2006-01-12
申请号：US10926143
申请日：2004-08-26
申请人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
发明人： Satoshi Tamaki , Takashi Yano , Seishi Hanaoka , Toshiyuki Saito
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2608 , H04L1/0003 , H04L1/0009 , H04L1/0026
摘要： In a radio-communication system and a radio station, one or more subcarriers are grouped, and the maximum bit number per symbol of the modulation method used for each subcarrier is determined for each group and shared between a transmitting station and a receiving station. The transmitting station divides and allocates a coded signal to subcarriers in accordance with the bit number per symbol, modulates each of the allocated signals by a predetermined modulation method, and transmits the modulated signals. The receiving station demodulates the received signal by the predetermined modulation method, adds a signal having zero likelihood when the bit number per symbol of a modulation method for demodulation is different from a maximum bit number, and decodes the demodulated signal by summarizing the demodulated results.
摘要翻译：在无线电通信系统和无线电台中，对一个或多个子载波进行分组，并且为每个组确定用于每个子载波的调制方法的每个码元的最大比特数，并在发射台和接收台之间共享。发送站根据每个符号的比特数将编码的信号分配并分配给子载波，通过预定的调制方法对每个分配的信号进行调制，并发送调制的信号。接收站通过预定的调制方式对接收到的信号进行解调，当解调用调制方式的每个符号的比特数与最大比特数不同时，添加具有零似然性的信号，并且通过汇总解调结果对解调信号进行解码。

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