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1. 发明授权

US07319684B2 System and method for wireless communication using a management server and access points 有权
标题翻译：使用管理服务器和接入点进行无线通信的系统和方法
公开(公告)号：US07319684B2
公开(公告)日：2008-01-15
申请号：US10449100
申请日：2003-06-02
申请人： Tsuyoshi Tamaki , Takashi Yano , Takaki Uta , Tomoaki Ishifuji
发明人： Tsuyoshi Tamaki , Takashi Yano , Takaki Uta , Tomoaki Ishifuji
IPC分类号： H04B7/212 , H04B7/00 , H04J3/06
CPC分类号： H04W52/243 , H04L41/00 , H04W16/28 , H04W28/14 , H04W72/1231 , H04W74/0816
摘要： A system and method are provided for wireless communication. In one example, a wireless communication system that enhances total system throughput is provided. The system performs parallel data transmission from a plurality of access points to a plurality of user terminals. On terminals with power control function, their transmit power can be set to minimize interference. The wireless communication system comprises a management server which performs centralized management of time of access-point-to-terminal packet transmission, access points, and user terminals that perform data transmission, according to transmission time control information from the management server. Transmit queues for measuring downlink traffic and receive queues for measuring uplink traffic are provided on the access points or the management server. The system determines uplink and downlink periods from the transmit and receive queue lengths. The system also controls the access points and user terminals to transmit for the determined periods. Consequently, packet collision due to transmission from a terminal that interferes with neighboring terminals is eliminated. Thus, system throughput is enhanced.
摘要翻译：提供了一种用于无线通信的系统和方法。在一个示例中，提供了增强总系统吞吐量的无线通信系统。系统执行从多个接入点到多个用户终端的并行数据传输。在具有电源控制功能的终端上，可以设置其发射功率以最小化干扰。无线通信系统包括管理服务器，其根据来自管理服务器的传输时间控制信息，对接入点到终端分组传输的时间进行集中管理，接入点和执行数据传输的用户终端。在接入点或管理服务器上提供用于测量下行链路流量的发送队列和用于测量上行链路流量的接收队列。系统从发送和接收队列长度确定上行链路和下行链路周期。系统还控制接入点和用户终端在确定的时间段内进行传输。因此，消除了来自与邻近终端干扰的终端的传输的分组冲突。因此，提高了系统吞吐量。

2. 发明申请

US20050101331A1 Method and system for controlling position detection of a terminal in a network 审中-公开
标题翻译：用于控制网络中终端的位置检测的方法和系统
公开(公告)号：US20050101331A1
公开(公告)日：2005-05-12
申请号：US10867717
申请日：2004-06-16
申请人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
发明人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
IPC分类号： G01S5/14 , H04W60/00 , H04W64/00 , H04W76/06 , H04W84/12 , H04Q7/20
CPC分类号： H04W64/00
摘要： A method and system are provided for controlling position detection of a terminal in a network. In one example, a wireless communications system operates as a position determination system to determine the position of a terminal, based on the measurements of time difference of arrival (TDOA) of radio signals sent from the terminal and received at a plurality of base stations in the vicinity of the terminal, while preventing the loss of packets sent from terminals to the base stations.
摘要翻译：提供了一种用于控制网络中的终端的位置检测的方法和系统。在一个示例中，无线通信系统作为位置确定系统操作，以基于从终端发送并在多个基站处接收的无线电信号的到达时间差（TDOA）的测量来确定终端的位置，在终端附近，同时防止从终端发送到基站的分组丢失。

3. 发明申请

US20070090995A1 System and method for position detection of a terminal in a network 有权
标题翻译：网络中终端位置检测的系统和方法
公开(公告)号：US20070090995A1
公开(公告)日：2007-04-26
申请号：US11546318
申请日：2006-10-12
申请人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
发明人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
IPC分类号： G01S3/02
CPC分类号： G01S5/0268 , G01S5/0252 , G01S5/10
摘要： In a position detection system for detecting a position of a terminal apparatus of a radio communications system, a position detection time is shortened using a position detection method for determining signal times-of-arrival between the terminal apparatus and base stations neighboring the terminal apparatus. According to the present invention, means for generating a database in which received power information about signals transferred between the terminal apparatus and the base stations neighboring the terminal apparatus corresponds to position information about the terminal apparatus, and for determining the position information by searching received power information obtained in the position detection from the database, and means for determining the position by use of signal times-of-arrival are executed in parallel. Then, the use of a result of the means which has detected the position earlier than another means shortens the position detection time.
摘要翻译：在用于检测无线电通信系统的终端装置的位置的位置检测系统中，使用位置检测方法来缩短位置检测时间，该位置检测方法用于确定终端装置与终端装置相邻的基站之间的信号到达时间。根据本发明，用于生成数据库的装置，其中关于在终端装置和与终端装置相邻的基站之间传送的信号的接收功率信息对应于关于终端装置的位置信息，并且通过搜索接收功率来确定位置信息执行从数据库的位置检测获得的信息，以及用于通过使用信号到达时间确定位置的装置并行执行。然后，使用检测到比其他装置更早的位置的装置的结果缩短了位置检测时间。

4. 发明授权

US07138946B2 System and method for position detection of a terminal in a network 有权
标题翻译：网络中终端位置检测的系统和方法
公开(公告)号：US07138946B2
公开(公告)日：2006-11-21
申请号：US10866722
申请日：2004-06-15
申请人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
发明人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
IPC分类号： G01S3/02
CPC分类号： G01S5/0268 , G01S5/0252 , G01S5/10
摘要： In a position detection system for detecting a position of a terminal apparatus of a radio communications system, a position detection time is shortened using a position detection method for determining signal times-of-arrival between the terminal apparatus and base stations neighboring the terminal apparatus. According to the present invention, means for generating a database in which received power information about signals transferred between the terminal apparatus and the base stations neighboring the terminal apparatus corresponds to position information about the terminal apparatus, and for determining the position information by searching received power information obtained in the position detection from the database, and means for determining the position by use of signal times-of-arrival are executed in parallel. Then, the use of a result of the means which has detected the position earlier than another means shortens the position detection time.
摘要翻译：在用于检测无线电通信系统的终端装置的位置的位置检测系统中，使用位置检测方法来缩短位置检测时间，该位置检测方法用于确定终端装置与终端装置相邻的基站之间的信号到达时间。根据本发明，用于生成数据库的装置，其中关于在终端装置和与终端装置相邻的基站之间传送的信号的接收功率信息对应于关于终端装置的位置信息，并且通过搜索接收功率来确定位置信息执行从数据库的位置检测获得的信息，以及用于通过使用信号到达时间确定位置的装置并行执行。然后，使用检测到比其他装置更早的位置的装置的结果缩短了位置检测时间。

5. 发明授权

US07345630B2 System and method for position detection of a terminal in a network 有权
标题翻译：网络中终端位置检测的系统和方法
公开(公告)号：US07345630B2
公开(公告)日：2008-03-18
申请号：US11546318
申请日：2006-10-12
申请人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
发明人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
IPC分类号： G01S3/02
CPC分类号： G01S5/0268 , G01S5/0252 , G01S5/10
摘要： In a position detection system for detecting a position of a terminal apparatus of a radio communications system, a position detection time is shortened using a position detection method for determining signal times-of-arrival between the terminal apparatus and base stations neighboring the terminal apparatus. According to the present invention, means for generating a database in which received power information about signals transferred between the terminal apparatus and the base stations neighboring the terminal apparatus corresponds to position information about the terminal apparatus, and for determining the position information by searching received power information obtained in the position detection from the database, and means for determining the position by use of signal times-of-arrival are executed in parallel. Then, the use of a result of the means which has detected the position earlier than another means shortens the position detection time.
摘要翻译：在用于检测无线电通信系统的终端装置的位置的位置检测系统中，使用位置检测方法来缩短位置检测时间，该位置检测方法用于确定终端装置与终端装置相邻的基站之间的信号到达时间。根据本发明，用于生成数据库的装置，其中关于在终端装置和与终端装置相邻的基站之间传送的信号的接收功率信息对应于关于终端装置的位置信息，并且通过搜索接收功率来确定位置信息执行从数据库的位置检测获得的信息，以及用于通过使用信号到达时间确定位置的装置并行执行。然后，使用检测到比其他装置更早的位置的装置的结果缩短了位置检测时间。

6. 发明申请

US20050078033A1 System and method for position detection of a terminal in a network 有权
标题翻译：网络中终端位置检测的系统和方法
公开(公告)号：US20050078033A1
公开(公告)日：2005-04-14
申请号：US10866722
申请日：2004-06-15
申请人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
发明人： Tsuyoshi Tamaki , Atsushi Ogino , Takaki Uta , Ryota Yamasaki
IPC分类号： G01S3/02 , G01S5/02 , G01S5/06 , G01S5/10 , H04W60/00 , H04W64/00
CPC分类号： G01S5/0268 , G01S5/0252 , G01S5/10
摘要： In a position detection system for detecting a position of a terminal apparatus of a radio communications system, a position detection time is shortened using a position detection method for determining signal times-of-arrival between the terminal apparatus and base stations neighboring the terminal apparatus. According to the present invention, means for generating a database in which received power information about signals transferred between the terminal apparatus and the base stations neighboring the terminal apparatus corresponds to position information about the terminal apparatus, and for determining the position information by searching received power information obtained in the position detection from the database, and means for determining the position by use of signal times-of-arrival are executed in parallel. Then, the use of a result of the means which has detected the position earlier than another means shortens the position detection time.
摘要翻译：在用于检测无线电通信系统的终端装置的位置的位置检测系统中，使用位置检测方法来缩短位置检测时间，该位置检测方法用于确定终端装置与终端装置相邻的基站之间的信号到达时间。根据本发明，用于生成数据库的装置，其中关于在终端装置和与终端装置相邻的基站之间传送的信号的接收功率信息对应于关于终端装置的位置信息，并且通过搜索接收功率来确定位置信息执行从数据库的位置检测获得的信息，以及用于通过使用信号到达时间确定位置的装置并行执行。然后，使用检测到比其他装置更早的位置的装置的结果缩短了位置检测时间。

7. 发明授权

US07006463B2 CDMA communication system and its transmission power control method 有权
公开(公告)号：US07006463B2
公开(公告)日：2006-02-28
申请号：US10262935
申请日：2002-10-03
申请人： Katsuhiko Tsunehara , Takashi Yano , Nobukazu Doi , Takaki Uta , Keiji Hasegawa
发明人： Katsuhiko Tsunehara , Takashi Yano , Nobukazu Doi , Takaki Uta , Keiji Hasegawa
IPC分类号： H04B7/185 , H04B7/216
CPC分类号： H04W52/54 , H04W52/146 , H04W52/245 , H04W52/58 , H04W88/08
摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

8. 发明授权

US07006475B1 Mobile communication method using CDMA multiplexing technique and mobile communication system 失效
标题翻译：使用CDMA复用技术和移动通信系统的移动通信方法
公开(公告)号：US07006475B1
公开(公告)日：2006-02-28
申请号：US09786685
申请日：1999-12-21
申请人： Toshiro Suzuki , Takashi Yano , Takaki Uta , Katsuhiko Tsunehara , Hisato Iwai
发明人： Toshiro Suzuki , Takashi Yano , Takaki Uta , Katsuhiko Tsunehara , Hisato Iwai
IPC分类号： H04B7/216
CPC分类号： H04B7/2618
摘要： On the side of a mobile station, interference of a perch channel with call control information or a traffic channel is reduced, realizing stable communication. In a method of CDMA communication in which communication is made through the traffic channel for transmitting user data and the perch channel for transmitting a spreading code used for demodulation of the user data, the traffic channel has a call control channel subjected to the time division multiplex, and that call control channel and a part of the perch channel, which is non-orthogonal to the call control channel, are arranged not to overlap with each other in a time base.
摘要翻译：在移动台侧，导频信道与呼叫控制信息或业务信道的干扰减少，实现稳定的通信。在通过用于发送用户数据的业务信道进行通信并且用于发送用于解调用户数据的扩展码的导频信道的CDMA通信的方法中，业务信道具有经过时分复用的呼叫控制信道，并且该呼叫控制信道和与呼叫控制信道非正交的导频信道的一部分被布置为在时基上彼此不重叠。

9. 发明授权

US06754255B1 Mobile terminal, a base station, and a synchronization control method 失效
标题翻译：移动终端，基站和同步控制方法
公开(公告)号：US06754255B1
公开(公告)日：2004-06-22
申请号：US09516205
申请日：2000-02-29
申请人： Takashi Yano , Takaki Uta , Nobukazu Doi , Toshiro Suzuki
发明人： Takashi Yano , Takaki Uta , Nobukazu Doi , Toshiro Suzuki
IPC分类号： H04B169
CPC分类号： H04B1/70754 , H04B1/7073 , H04B1/7085 , H04B1/7113 , H04B1/7117
摘要： In a mobile communication system, the tracking of synchronization is conducted in a stable state even in a multipath environment. A delay profile detector calculates a delay profile a(n) using a despread signal for each processing unit n. A delay profile averaging unit averages a(n) to produce Ave(|a(n)|2). A data symbol detector conducts rake combining of the despread signal using a(n) and Ave(|a(n)|2). According to a(n) and Ave(|a(n)|2, a weighting function unit calculates a representative value representing delay waves. A loop filter generates a control signal in response to the representative value. A clock controller controls a spread code generator according to the control signal.
摘要翻译：在移动通信系统中，即使在多路径环境中，同步的跟踪仍处于稳定状态。延迟分布检测器使用每个处理单元n的去扩展信号来计算延迟分布a（n）。延迟分布平均单元平均a（n）以产生Ave（| a（n）| <2>）。数据符号检测器使用（n）和Ave（| a（n）| <2>）进行去扩展信号的前置合并。根据a（n）和Ave（| a（n）| <2），加权函数单元计算代表延迟波的代表值，环路滤波器响应于代表值产生控制信号，时钟控制器控制扩展码发生器根据控制信号。

10. 发明授权

US06483816B2 CDMA communication system and its transmission power control method 有权
标题翻译： CDMA通信系统及其传输功率控制方法
公开(公告)号：US06483816B2
公开(公告)日：2002-11-19
申请号：US09818510
申请日：2001-03-28
申请人： Katsuhiko Tsunehara , Takashi Yano , Nobukazu Doi , Takaki Uta , Keiji Hasegawa
发明人： Katsuhiko Tsunehara , Takashi Yano , Nobukazu Doi , Takaki Uta , Keiji Hasegawa
IPC分类号： H04B7185
CPC分类号： H04W52/54 , H04W52/146 , H04W52/245 , H04W52/58 , H04W88/08
摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.
摘要翻译：为执行单向通信的CDMA移动通信系统提供上行信道发送功率控制方法。基站测量在每个信道从每个移动终端发送的数据的接收电平，并且生成每个上行链路业务信道的发送功率控制信号。所生成的发送功率控制信号被复用，并且通过使用由移动终端共享的公共信道将多路复用的公共发送功率控制信号发送到所有移动终端。每个移动终端从接收到的公共发送功率控制信号中导出终端使用的上行链路业务信道的发送功率控制信号，并控制数据分组的发送功率。

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