公开(公告)号：US08705386B2

公开(公告)日：2014-04-22

申请号：US12820233

申请日：2010-06-22

申请人： Tsutomu Yamada ,  Yoshinori Okura ,  Yoshihito Sato ,  May Takada

发明人： Tsutomu Yamada ,  Yoshinori Okura ,  Yoshihito Sato ,  May Takada

IPC分类号： H04L12/26 ,  H04J3/16

CPC分类号： H04L1/0001

摘要： A plurality of wireless communication methods are combined, networks to be used are dynamically selected by evaluating each network quality, and a packet format is changed adaptively to realize necessary reliability. The wireless communication apparatus has a network interface, a data interface, a quality interface, an allocation control part, a quality database, a quality update part, communication units and antennas. The wireless communication apparatus receives data and a requested quality from an application apparatus, selects the communication unit and communication method suitable for the requested quality, and transmits the data and requested quality. The communication unit receives a communication quality of the communication partner, and the quality update part updates the communication quality state in the quality database.

摘要翻译： 多个无线通信方法组合，通过评估每个网络质量动态地选择要使用的网络，并且分组格式自适应地改变以实现必要的可靠性。 无线通信装置具有网络接口，数据接口，质量接口，分配控制部，质量数据库，质量更新部，通信单元和天线。 无线通信装置从应用装置接收数据和请求的质量，选择适合所请求质量的通信单元和通信方法，并发送数据和请求的质量。 通信单元接收通信伙伴的通信质量，质量更新部更新质量数据库中的通信质量状态。

公开(公告)号：US20100329137A1

公开(公告)日：2010-12-30

申请号：US12820233

申请日：2010-06-22

申请人： Tsutomu YAMADA ,  Yoshinori Okura ,  Yoshihito Sato ,  May Takada

发明人： Tsutomu YAMADA ,  Yoshinori Okura ,  Yoshihito Sato ,  May Takada

IPC分类号： H04L12/26 ,  H04W72/04

CPC分类号： H04L1/0001

摘要： A plurality of wireless communication methods are combined, networks to be used are dynamically selected by evaluating each network quality, and a packet format is changed adaptively to realize necessary reliability. The wireless communication apparatus has a network interface, a data interface, a quality interface, an allocation control part, a quality database, a quality update part, communication units and antennas. The wireless communication apparatus receives data and a requested quality from an application apparatus, selects the communication unit and communication method suitable for the requested quality, and transmits the data and requested quality. The communication unit receives a communication quality of the communication partner, and the quality update part updates the communication quality state in the quality database.

摘要翻译： 多个无线通信方法组合，通过评估每个网络质量动态地选择要使用的网络，并且分组格式自适应地改变以实现必要的可靠性。 无线通信装置具有网络接口，数据接口，质量接口，分配控制部，质量数据库，质量更新部，通信单元和天线。 无线通信装置从应用装置接收数据和请求的质量，选择适合所请求质量的通信单元和通信方法，并发送数据和请求的质量。 通信单元接收通信伙伴的通信质量，质量更新部更新质量数据库中的通信质量状态。

公开(公告)号：US20130121238A1

公开(公告)日：2013-05-16

申请号：US13702201

申请日：2010-06-11

申请人： Tsutomu Yamada ,  Noritaka Matsumoto ,  Kazuya Shimoyama ,  Yoshihito Sato ,  May Takada ,  Masayuki Miyazaki

发明人： Tsutomu Yamada ,  Noritaka Matsumoto ,  Kazuya Shimoyama ,  Yoshihito Sato ,  May Takada ,  Masayuki Miyazaki

IPC分类号： H04W88/04

CPC分类号： H04W88/04 ,  H04B7/155 ,  H04L45/22 ,  H04L45/24 ,  H04L45/28 ,  H04L45/54 ,  H04W24/04 ,  H04W40/32 ,  H04W84/047

摘要： A multistage relay communication system 100 includes a trunk network 1 and branch networks 2 (2a, 2b), each of which includes one or more communication apparatuses 4. The communication apparatus 4 can switch between a trunk mode to operate in the trunk network 1 and a branch mode to operate in the branch network 2. In the trunk network 1, the communication apparatus 4 carries out fixing of a communication path and redundancy of data based on a path table in order to achieve real-timeness and a data arrival rate. Meanwhile, in the branch network 2, when a communication failure occurs, the communication apparatus 4 autonomously searches for a communication path and constructs a path table, in order to at least secure a data arrival rate even if real-timeness is impaired within an allowable range.

摘要翻译： 多级中继通信系统100包括中继网络1和分支网络2（2a，2b），分支网络2（2a，2b）中的每一个包括一个或多个通信装置4.通信装置4可以在主干网络1的中继模式和中继网络1之间切换 在分支网络2中运行的分支模式。在中继网络1中，通信装置4基于路径表执行通信路径的固定和数据的冗余，以便实现实时性和数据到达率。 同时，在分支网络2中，当通信故障发生时，通信装置4自主地搜索通信路径并构建路径表，以便即使在允许的范围内实时性受到损害，至少确保数据到达速率 范围。

公开(公告)号：US08971318B2

公开(公告)日：2015-03-03

申请号：US13702201

申请日：2010-06-11

申请人： Tsutomu Yamada ,  Noritaka Matsumoto ,  Kazuya Shimoyama ,  Yoshihito Sato ,  May Takada ,  Masayuki Miyazaki

发明人： Tsutomu Yamada ,  Noritaka Matsumoto ,  Kazuya Shimoyama ,  Yoshihito Sato ,  May Takada ,  Masayuki Miyazaki

IPC分类号： H04L12/50 ,  H04W88/04 ,  H04W40/32 ,  H04L12/707 ,  H04L12/703 ,  H04L12/741 ,  H04W24/04 ,  H04W84/04 ,  H04B7/155

CPC分类号： H04W88/04 ,  H04B7/155 ,  H04L45/22 ,  H04L45/24 ,  H04L45/28 ,  H04L45/54 ,  H04W24/04 ,  H04W40/32 ,  H04W84/047

摘要： A multistage relay communication system 100 includes a trunk network 1 and branch networks 2 (2a, 2b), each of which includes one or more communication apparatuses 4. The communication apparatus 4 can switch between a trunk mode to operate in the trunk network 1 and a branch mode to operate in the branch network 2. In the trunk network 1, the communication apparatus 4 carries out fixing of a communication path and redundancy of data based on a path table in order to achieve real-timeness and a data arrival rate. Meanwhile, in the branch network 2, when a communication failure occurs, the communication apparatus 4 autonomously searches for a communication path and constructs a path table, in order to at least secure a data arrival rate even if real-timeness is impaired within an allowable range.

摘要翻译： 多级中继通信系统100包括中继网络1和分支网络2（2a，2b），分支网络2（2a，2b）中的每一个包括一个或多个通信装置4.通信装置4可以在主干网络1的中继模式和中继网络1之间切换 在分支网络2中运行的分支模式。在中继网络1中，通信装置4基于路径表执行通信路径的固定和数据的冗余，以便实现实时性和数据到达率。 同时，在分支网络2中，当发生通信故障时，通信装置4自主地搜索通信路径并构建路径表，以便即使在可允许的范围内实时性受损，至少确保数据到达速率 范围。

公开(公告)号：US08285219B2

公开(公告)日：2012-10-09

申请号：US12778237

申请日：2010-05-12

申请人： Yoshihito Sato ,  Kenji Imamoto ,  Yoshinori Okura

发明人： Yoshihito Sato ,  Kenji Imamoto ,  Yoshinori Okura

IPC分类号： H04B17/00 ,  H04W40/00

CPC分类号： H04W16/18 ,  G01S5/0205 ,  G01S5/0273 ,  H04W64/00

摘要： A technique is offered which is adapted for optimization computations and which makes it possible to carry out an estimation of the state of propagation of radio waves quickly and accurately during a search for the locations of wireless stations. During the optimization computations, sending points and receiving points are set using a parameter search technique. Propagation paths are computed using a far-field approximation technique for Maxwell's equations. A propagation path leading to a local area where the accuracy is low with the far-field approximation technique is extracted from the computed paths. The state of scattering previously calculated using a numerical analysis technique for Maxwell's equations is reflected in the extracted path to modify the propagation path. The communication characteristics of the modified path are evaluated. The steps S101-S105 are performed repeatedly a given number of times. A sending point and a receiving point producing optimum communication characteristics are output.

摘要翻译： 提供了适用于优化计算的技术，并且使得可以在搜索无线站的位置期间快速且准确地执行无线电波的传播状态的估计。 在优化计算过程中，使用参数搜索技术设置发送点和接收点。 使用麦克斯韦方程的远场近似技术计算传播路径。 从计算出的路径中提取通过远场近似技术导致精度低的局部区域的传播路径。 以前使用马克斯韦方程的数值分析技术计算的散射状态反映在提取的修改传播路径的路径中。 评估修改路径的通信特性。 重复执行步骤S101〜S105给定次数。 输出产生最佳通信特性的发送点和接收点。

公开(公告)号：US08160594B2

公开(公告)日：2012-04-17

申请号：US11646450

申请日：2006-12-28

申请人： Yoshihito Sato ,  Yoshinori Okura

发明人： Yoshihito Sato ,  Yoshinori Okura

IPC分类号： H04W40/00

CPC分类号： H04W16/225 ,  H04B17/327

摘要： A radio propagation path from a transmitting point to a receiving point is estimated accurately with a relatively small amount of calculation. A predetermined-size receiving area including the receiving point is set, radio propagation paths from the transmitting point to the receiving area is estimated by a ray launching method, object surfaces existing in the paths are extracted, and a radio propagation path from the transmitting point to the receiving point is estimated by an imaging method using only the extracted object surfaces.

摘要翻译： 以较少的计算量精确估计从发射点到接收点的无线电传播路径。 设置包括接收点的预定尺寸的接收区域，通过射线发射方法估计从发送点到接收区域的无线传播路径，提取存在于路径中的对象面，从发送点 通过仅使用所提取的物体表面的成像方法来估计接收点。

公开(公告)号：US20080161005A1

公开(公告)日：2008-07-03

申请号：US11646450

申请日：2006-12-28

申请人： Yoshihito Sato ,  Yoshinori Okura

发明人： Yoshihito Sato ,  Yoshinori Okura

IPC分类号： H04Q7/20

CPC分类号： H04W16/225 ,  H04B17/327

摘要： A radio propagation path from a transmitting point to a receiving point is estimated accurately with a relatively small amount of calculation. A predetermined-size receiving area including the receiving point is set, radio propagation paths from the transmitting point to the receiving area is estimated by a ray launching method, object surfaces existing in the paths are extracted, and a radio propagation path from the transmitting point to the receiving point is estimated by an imaging method using only the extracted object surfaces.

摘要翻译： 以较少的计算量精确估计从发射点到接收点的无线电传播路径。 设置包括接收点的预定尺寸的接收区域，通过射线发射方法估计从发送点到接收区域的无线传播路径，提取存在于路径中的对象面，从发送点 通过仅使用所提取的物体表面的成像方法来估计接收点。

公开(公告)号：US20130194276A1

公开(公告)日：2013-08-01

申请号：US13813981

申请日：2012-07-11

申请人： Yoshihito Sato ,  Tsutomu Yamada

发明人： Yoshihito Sato ,  Tsutomu Yamada

IPC分类号： H04W16/18

CPC分类号： H04W16/18 ,  G06F17/509 ,  H04W4/043 ,  H04W16/20

摘要： In the construction of a wireless network in a building, structure conditions such as the floor plan of the building and the shape of the floor, material conditions such as materials for structures, and the like have a great effect on radio wave propagation characteristics. This causes a problem that unless these pieces of information are taken into consideration, an accurate layout design of wireless base stations cannot be made. In the construction of a new wireless network in a building, a wireless network similar to structure conditions of a newly constructed building is extracted from structure conditions of past buildings in which a wireless network is constructed. The layout positions of wireless base stations used in the extracted wireless network are regarded as the layout positions of wireless base stations in the new wireless network.

摘要翻译： 在建筑物中的无线网络的构造中，诸如建筑物的平面图和地板的形状等结构条件，诸如结构材料的材料条件等对无线电波传播特性具有很大的影响。 这导致了一个问题，除非考虑到这些信息，否则无法进行无线基站的精确布局设计。 在建筑物中建立新的无线网络时，从构建无线网络的过去建筑物的结构条件中提取类似于新建建筑物的结构条件的无线网络。 提取的无线网络中使用的无线基站的布​​局位置被认为是新无线网络中无线基站的布​​局位置。

公开(公告)号：US09883407B2

公开(公告)日：2018-01-30

申请号：US14126173

申请日：2011-06-16

申请人： Yoshihito Sato ,  Tsutomu Yamada ,  Hiromichi Endo

发明人： Yoshihito Sato ,  Tsutomu Yamada ,  Hiromichi Endo

IPC分类号： G06F17/50 ,  G06G7/62 ,  H04W16/18 ,  H04B17/318 ,  H04B17/391 ,  H04B17/20 ,  H04W16/20 ,  H04B17/23 ,  H04B17/27

CPC分类号： H04W16/18 ,  H04B17/20 ,  H04B17/23 ,  H04B17/27 ,  H04B17/318 ,  H04B17/391 ,  H04W16/20

摘要： A method for measuring a radio wave propagation environment includes installing radio signal transmission and reception apparatuses where a radio network system is to be constructed and obtaining an electromagnetic wave measured value of a signal between transmission and reception apparatuses; estimating an electromagnetic wave propagation state of the signal using an electrical property and information on a three-dimensional structure at the site to obtain an electromagnetic wave estimated value; making a comparison between measured and estimated values for each time of day to determine when errors between measured and estimated values exceed a reference value; obtaining an electromagnetic path between transmission and reception apparatuses; and modifying structure information in the wave path to re-obtain the estimated value; and comparing the measured re-obtained estimated value to modify the three-dimensional structure information so that the error value becomes smaller.

公开(公告)号：US20140114635A1

公开(公告)日：2014-04-24

申请号：US14126173

申请日：2011-06-16

申请人： Yoshihito Sato ,  Tsutomu Yamada ,  Hiromichi Endo

发明人： Yoshihito Sato ,  Tsutomu Yamada ,  Hiromichi Endo

IPC分类号： H04W16/18

CPC分类号： H04W16/18 ,  H04B17/20 ,  H04B17/23 ,  H04B17/27 ,  H04B17/318 ,  H04B17/391 ,  H04W16/20

摘要： A method for measuring a radio wave propagation environment includes installing radio signal transmission and reception apparatuses where a radio network system is to be constructed and obtaining an electromagnetic wave measured value of a signal between transmission and reception apparatuses; estimating an electromagnetic wave propagation state of the signal using an electrical property and information on a three-dimensional structure at the site to obtain an electromagnetic wave estimated value; making a comparison between measured and estimated values for each time of day to determine when errors between measured and estimated values exceed a reference value; obtaining an electromagnetic path between transmission and reception apparatuses; and modifying structure information in the wave path to re-obtain the estimated value; and comparing the measured re-obtained estimated value to modify the three-dimensional structure information so that the error value becomes smaller.

摘要翻译： 一种用于测量无线电波传播环境的方法包括安装无线电网络系统将要被构造的无线电信号发射和接收装置，并获得发射和接收装置之间的信号的电磁波测量值; 使用电气特性估计信号的电磁波传播状态，并在现场对三维结构信息进行估计以获得电磁波估计值; 比较每天的测量值和估计值，以确定测量值和估计值之间的误差超过参考值的时间; 获取发送和接收设备之间的电磁路径; 并修改波形路径中的结构信息以重新获得估计值; 并且将所测量的重新获得的估计值进行比较以修改三维结构信息，使得误差值变小。