公开(公告)号：US20120051293A1

公开(公告)日：2012-03-01

申请号：US13318451

申请日：2010-04-19

申请人： Kazuyuki Sakoda ,  Yuichi Morioka

发明人： Kazuyuki Sakoda ,  Yuichi Morioka

IPC分类号： H04W92/00

CPC分类号： H04B7/0697 ,  H04W72/046

摘要： Space-division multiple access is optimally realized while avoiding inter-network interference.Time usage information for transmission sequence units is exchanged among different networks or non-adjacent equipment, and on the basis of this information, a station that initiates a transmission sequence unit disposes the start time of its own transmission sequence unit in a time slot which is not being used by an adjacent network or adjacent equipment. As a result, multiple wireless networks or wireless communication devices are able to utilize a channel by time division even in cases where exclusive placement of frequency channels is difficult, and efficient space-division multiple access can be realized.

摘要翻译： 最佳地实现空分多址，同时避免网络间干扰。 发送序列单位的时间使用信息在不同网络或不相邻设备之间进行交换，基于该信息，发起发送序列单元的站将其自身的发送序列单元的开始时间设为在 不被相邻网络或相邻设备使用。 结果，即使在难以排除频率信道的情况下，多个无线网络或无线通信设备能够通过时分使用信道，并且可以实现高效的空分多址。

公开(公告)号：US20120044904A1

公开(公告)日：2012-02-23

申请号：US13318185

申请日：2010-03-17

申请人： Hiroaki Takano ,  Kazuyuki Sakoda

发明人： Hiroaki Takano ,  Kazuyuki Sakoda

IPC分类号： H04W72/04

CPC分类号： H04W72/046 ,  H04B7/0617 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0064 ,  H04L27/2602

摘要： A communication operation is suitably performed with application of Space Division Multiple Access in which wireless resources on a space axis are shared by a plurality of users.If a frequency width is narrowed to 20 MHz when the communication quality is high, the amount of transmittable data can be about half, and the frame length can be doubled. If the frame length is rather excessively long, switching is performed to a modulation scheme with the greater number of states to shorten the frame length. On the other hand, when the communication quality is low, switching is performed to a modulation scheme with the smaller number of states to lengthen the frame length. When the frame length is still insufficient, switching is performed to a narrow frequency width to lengthen the frame length.

摘要翻译： 通过应用空间多路访问来适当地执行通信操作，其中空间轴上的无线资源由多个用户共享。 当通信质量高时，如果频率宽度变窄到20MHz，则可发送数据的量可以是大约一半，并且帧长度可以加倍。 如果帧长度相当长，则对具有较大数量状态的调制方式进行切换以缩短帧长度。 另一方面，当通信质量低时，对具有较少数量状态的调制方式进行切换以延长帧长度。 当帧长度仍然不足时，切换到窄的频率宽度以延长帧长度。

公开(公告)号：US07995548B2

公开(公告)日：2011-08-09

申请号：US10569426

申请日：2004-10-08

申请人： Kazuyuki Sakoda

发明人： Kazuyuki Sakoda

IPC分类号： H04Q7/28

CPC分类号： H04W72/0446 ,  H04W16/14 ,  H04W48/08 ,  H04W72/1242 ,  H04W74/0816

摘要： An autonomously dispersed type wireless network is suitably formed with communication stations avoiding collision of beacons transmitted one to another. In the event that the range of reach of airwaves change and a receivable state is created and beacons collide, a communication station changes the beacon transmission position of itself in response to receiving a beacon from another station at a timing immediately prior to transmission to its own beacon. Also, in the event that beacon collision is exposed due to emergence of a new communication which can perform reception from two systems out of airwave range of each other, the newly-participating station requests one of the communication stations of which the beacons are colliding to change the beacon transmission timing.

摘要翻译： 自适应分散型无线网络适当地形成有通信站，避免了彼此发送的信标的冲突。 在无线电波范围变化并且可接收状态产生并且信标相撞的情况下，通信站响应于在紧接在其自身之前的定时从另一台站接收到信标而改变其自身的信标发送位置 灯塔 此外，在由于出现可能从两个系统的空中波段的接收的新通信而出现信标冲突的情况下，新参与的站请求信标正在相撞的通信站之一 改变信标发送定时。

公开(公告)号：US20100271991A1

公开(公告)日：2010-10-28

申请号：US12757624

申请日：2010-04-09

申请人： Ryota Kimura ,  Kazuyuki Sakoda ,  Yuichi Morioka ,  Ryo Sawai

发明人： Ryota Kimura ,  Kazuyuki Sakoda ,  Yuichi Morioka ,  Ryo Sawai

IPC分类号： H04W8/00

CPC分类号： H04L1/08

摘要： A wireless communication apparatus includes a packet-generating section and a transmission section. The generating section is provided for generating a packet and characteristically performing symbol repetition on a preamble of the packet. The transmission section is provided for transmitting the packet subjected to the symbol repetition as a wireless signal.

摘要翻译： 无线通信装置包括分组生成部和发送部。 提供生成部分用于生成分组并且在分组的前导码上特征性地执行符号重复。 发送部分用于将经过符号重复的分组作为无线信号进行发送。

公开(公告)号：US20100208713A1

公开(公告)日：2010-08-19

申请号：US12769407

申请日：2010-04-28

申请人： Yuichi MORIOKA ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

发明人： Yuichi MORIOKA ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

IPC分类号： H04W40/00

CPC分类号： H04W74/0816 ,  H04B7/0413 ,  H04L5/0055 ,  H04L27/18 ,  H04L27/20 ,  H04L47/10 ,  H04L47/32 ,  H04L47/35 ,  H04L69/22 ,  H04W24/02 ,  H04W28/18 ,  H04W28/22 ,  H04W74/0833 ,  H04W74/0841 ,  H04W74/085 ,  H04W84/12 ,  H04W88/06

摘要： Random access operation is performed under a communication environment in which a plurality of communication modes having different transmission rate coexist with small overhead. A high-grade communication station spoofs information of a packet length and a rate in a decoding portion so that a value of (packet length)/(rate) corresponds to a duration where the communication is hoped to be stopped. The other station receiving the spoofed information receives the rest of the packet with the designated rate during the interval designated by the value of (packet length)/(rate). In this case, the packet length and the rate are not those of actually transmitted packet so that this packet is discarded.

公开(公告)号：US07657276B2

公开(公告)日：2010-02-02

申请号：US11042520

申请日：2005-01-26

申请人： Kazuyuki Sakoda

发明人： Kazuyuki Sakoda

IPC分类号： H04B7/00

CPC分类号： H04W74/0816 ,  H04W24/00 ,  H04W28/18

摘要： In order to allow each of communication stations to execute impartial control of accesses to communication media by setting executable-communication ranges of their own independently of each other in a communication environment based on a CSMA method, the present invention provides a radio communication system in which each communication station is capable of checking the occupation state of communication media and setting such an executable-communication range of its own in accordance with the occupation state of the communication media that the number of communication stations coexisting in the executable-communication range is brought to a value within a predetermined range. For example, a specific communication station sets an executable-communication range of its own in order to limit the number of other communication stations capable of communicating with the specific communication station. In addition, a communication station sets an executable-transmission range suitable for an executable-reception range set by itself in order to reduce the degree of non-uniformity of the access control and to minimize the impact of interferences on other communication stations.

摘要翻译： 为了允许每个通信站通过基于CSMA方法在通信环境中独立地设置它们自己的可执行通信范围来执行对通信媒体的访问的公正控制，本发明提供一种无线电通信系统，其中 每个通信站能够根据通信媒体的占用状态来检查通信媒体的占用状态并设置其自己的可执行通信范围，使得在可执行通信范围中共存的通信站的数量被带到 在预定范围内的值。 例如，特定通信站设定其本身的可执行通信范围，以限制能够与特定通信站进行通信的其他通信站的数量。 此外，通信站设置适合于自身设置的可执行接收范围的可执行传输范围，以便减少访问控制的不均匀度并且最小化干扰对其他通信站的影响。

公开(公告)号：US07567540B2

公开(公告)日：2009-07-28

申请号：US11019417

申请日：2004-12-23

申请人： Kazuyuki Sakoda

发明人： Kazuyuki Sakoda

IPC分类号： H04Q7/24

CPC分类号： H04W48/08 ,  H04W52/0216 ,  H04W52/0219 ,  H04W84/18 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

摘要： In order to realize low power consumption of a communicator and information transmission in short packets with a short latency in a network environment of a self-organized distribution type, each communication station performs a reception processing before and after a beacon transmission time of a next communication station which transmits a beacon next to a local station, and performs data transmission before and after a beacon transmission time of a communication station functioning as a data transmission destination. In a case where a certain communication station transmits information to all other communication stations, each communication station transmits information by utilizing a reception period provided after the beacon transmission time of the next communication station transmitting the beacon next to the local station to perform transmission according to a bucket-brigade system.

摘要翻译： 为了在自组织分配类型的网络环境中实现通信器的低功耗和具有短延迟的短分组中的信息传输，每个通信站在下一个通信的信标发送时间之前和之后执行接收处理 在本地站旁边发送信标的站，并且在作为数据发送目的地的通信站的信标发送时间之前和之后执行数据传输。 在某个通信站向所有其他通信站发送信息的情况下，每个通信站通过利用在本地站旁边发送下一个通信站的信标发送时间之后提供的接收周期来发送信息，以根据 一个斗旅系统。

公开(公告)号：US07542453B2

公开(公告)日：2009-06-02

申请号：US10910646

申请日：2004-08-04

申请人： Yuichi Morioka ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

发明人： Yuichi Morioka ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

IPC分类号： H04Q7/24 ,  H04J3/16

CPC分类号： H04W74/0816 ,  H04B7/0413 ,  H04L5/0055 ,  H04L27/18 ,  H04L27/20 ,  H04L47/10 ,  H04L47/32 ,  H04L47/35 ,  H04L69/22 ,  H04W24/02 ,  H04W28/18 ,  H04W28/22 ,  H04W74/0833 ,  H04W74/0841 ,  H04W74/085 ,  H04W84/12 ,  H04W88/06

摘要： Random access operation is performed under a communication environment in which a plurality of communication modes having different transmission rate coexist with small overhead. A high-grade communication station spoofs information of a packet length and a rate in a decoding portion so that a value of (packet length)/(rate) corresponds to a duration where the communication is hoped to be stopped. The other station receiving the spoofed information receives the rest of the packet with the designated rate during the interval designated by the value of (packet length)/(rate). In this case, the packet length and the rate are not those of actually transmitted packet so that this packet is discarded.

摘要翻译： 在具有不同传输速率的多种通信模式与小开销共存的通信环境下执行随机接入操作。 高级通信站欺骗解码部分中的分组长度和速率的信息，使得（分组长度）/（速率）的值对应于希望停止通信的持续时间。 接收到欺骗信息的其他站在由（分组长度）/（速率）的值指定的间隔期间以指定的速率接收分组的其余部分。 在这种情况下，分组长度和速率不是实际发送分组的长度，所以丢弃该分组。

公开(公告)号：US07535879B2

公开(公告)日：2009-05-19

申请号：US11031132

申请日：2005-01-10

申请人： Yuichi Morioka ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

发明人： Yuichi Morioka ,  Kazuyuki Sakoda ,  Shinichi Kuroda ,  Ryo Sawai

IPC分类号： H04Q7/24 ,  H04J3/16

CPC分类号： H04W74/085

摘要： Random access operation is performed under a communication environment in which a plurality of communication modes having different transmission rate coexist with small overhead. A high-grade communication station spoofs information of a packet length and a rate in a decoding portion so that a value of (packet length)/(rate) corresponds to a duration where the communication is hoped to be stopped. The other station receiving the spoofed information receives the rest of the packet with the designated rate during the interval designated by the value of (packet length)/(rate). In this case, the packet length and the rate are not those of actually transmitted packet so that this packet is discarded.

公开(公告)号：US20080109711A1

公开(公告)日：2008-05-08

申请号：US11765544

申请日：2007-06-20

申请人： Yuichi Morioka ,  Kazuyuki Sakoda

发明人： Yuichi Morioka ,  Kazuyuki Sakoda

IPC分类号： G06F11/10

CPC分类号： H04L1/0063 ,  H04L69/08

摘要： A wireless communication system includes a first communication station configured to operate according to a first communication protocol, and a second communication station capable of operating according to both the first communication protocol and a second communication protocol. When the second communication station transmits a packet according to the second communication protocol, at least a first signal field compliant with the first communication protocol and a second signal field compliant with the second communication protocol are attached to a header of the packet, and the first signal field includes a parity bit. When the second communication station receives a packet from another communication station, the second communication station performs a parity check on the first signal field of the packet, and when no parity error is detected, the second communication station further checks whether content of the first signal field is compliant with the first communication protocol.

摘要翻译： 无线通信系统包括被配置为根据第一通信协议操作的第一通信站和能够根据第一通信协议和第二通信协议进行操作的第二通信站。 当第二通信站根据第二通信协议发送分组时，至少符合第一通信协议的第一信号字段和符合第二通信协议的第二信号字段附加到分组的报头，并且第一 信号字段包括奇偶校验位。 当第二通信站从另一通信站接收到分组时，第二通信站对分组的第一信号字段执行奇偶校验，并且当没有检测到奇偶校验错误时，第二通信站还检查第一信号的内容 字段符合第一个通信协议。