公开(公告)号：US20130223250A1

公开(公告)日：2013-08-29

申请号：US13727406

申请日：2012-12-26

申请人： Ryoko MATSUO ,  Tomoya TANDAI ,  Takeshi TOMIZAWA ,  Tomoko ADACHI

发明人： Ryoko MATSUO ,  Tomoya TANDAI ,  Takeshi TOMIZAWA ,  Tomoko ADACHI

IPC分类号： H04W24/02

CPC分类号： H04W74/0816 ,  G08B5/36 ,  H04B17/318 ,  H04B17/345 ,  H04J11/0023 ,  H04W24/02 ,  H04W24/08 ,  H04W74/0808 ,  H04W84/12

摘要： According to one embodiment, a wireless communication apparatus is provided with first and second determination units. The first unit determines based on a first carrier sense threshold whether busy state or not and specifies a first time when busy state is determined with the first threshold, and determines based on a second carrier sense threshold smaller than the first threshold whether busy state or not and specifies a second time when busy state is determined. The second unit determines, if at least busy state is determined based on the second threshold and the second time precedes a reference time equal to or earlier than the first time, to perform processing for avoiding interference.

公开(公告)号：US20130230040A1

公开(公告)日：2013-09-05

申请号：US13724618

申请日：2012-12-21

申请人： Tomoko ADACHI ,  Tomoya TANDAI ,  Takeshi TOMIZAWA ,  Ryoko MATSUO

发明人： Tomoko ADACHI ,  Tomoya TANDAI ,  Takeshi TOMIZAWA ,  Ryoko MATSUO

IPC分类号： H04W52/02

CPC分类号： H04W52/0209 ,  Y02D70/142 ,  Y02D70/166

摘要： According to one embodiment, a wireless communication apparatus includes a first processor, a second processor and a controller. The first processor generates one or more first frames and one or more second frames. The second processor transmits the first frames and the second frames, and receives a first acknowledgement and a second acknowledgement. The controller retains a first interval relating to a time interval between the first transmission request and the second transmission request and a second interval relating to a time interval between a first and a second time points, and controls transmission of frames to be transmitted based on the first and the second intervals.

摘要翻译： 根据一个实施例，无线通信装置包括第一处理器，第二处理器和控制器。 第一处理器产生一个或多个第一帧和一个或多个第二帧。 第二处理器发送第一帧和第二帧，并且接收第一确认和第二确认。 控制器保持与第一传输请求和第二传输请求之间的时间间隔有关的第一间隔和与第一和第二时间点之间的时间间隔相关的第二间隔，并且基于 第一和第二间隔。

公开(公告)号：US20120127904A1

公开(公告)日：2012-05-24

申请号：US13223554

申请日：2011-09-01

申请人： Takeshi TOMIZAWA ,  Tomoya TANDAI

发明人： Takeshi TOMIZAWA ,  Tomoya TANDAI

IPC分类号： H04W52/02

CPC分类号： H04W52/0258 ,  Y02D70/142 ,  Y02D70/166

摘要： According to one embodiment, a wireless receiving apparatus includes a receiving unit, a buffer, a prediction unit, a sleep control unit, an access control unit, a generation unit and a transmitting unit. The receiving unit is configured to receive data to extract a payload data. The buffer is configured to generate a buffer-full signal if a payload data size is larger than a free area size. The prediction unit is configured to generate predicted latency. The sleep control unit is configured to generate sleep information based on the predicted latency. The access control unit is configured to generate a sleep-frame parameter including the sleep information. The generation unit is configured to generate a sleep-frame. The transmitting unit is configured to transmit the sleep-frame. The sleep control unit keeps the power supply in the sleep state for indicating the sleep information after receiving an acknowledgment of receiving of the sleep-frame.

摘要翻译： 根据一个实施例，无线接收装置包括接收单元，缓冲器，预测单元，睡眠控制单元，访问控制单元，生成单元和发送单元。 接收单元被配置为接收数据以提取有效载荷数据。 如果有效载荷数据大小大于自由区域大小，则缓冲器被配置为产生缓冲器满信号。 预测单元被配置为产生预测的等待时间。 睡眠控制单元被配置为基于所预测的等待时间来生成睡眠信息。 访问控制单元被配置为生成包括睡眠信息的休眠帧参数。 生成单元被配置为生成睡眠帧。 发送单元被配置为发送睡眠帧。 休眠控制单元在接收到睡眠帧的接收确认之后，使电源处于休眠状态以指示睡眠信息。

公开(公告)号：US20120077534A1

公开(公告)日：2012-03-29

申请号：US13245445

申请日：2011-09-26

申请人： Ryoko MATSUO ,  Tomoya TANDAI ,  Takeshi TOMIZAWA

发明人： Ryoko MATSUO ,  Tomoya TANDAI ,  Takeshi TOMIZAWA

IPC分类号： H04W72/04

CPC分类号： H04W76/23

摘要： According to one embodiment, there is provided a wireless communication method, including: a start step of performing a connection process with a second wireless device; a communication step of performing communication for a predetermined term in a first mode; a determination step of determining, in accordance with a communication status, whether to change a communication mode from the first mode to a second mode in which communication at a higher speed than the first mode is performed, change an operating frequency channel for communication to another frequency channel than the first frequency channel, or continue the first mode; and a transmission step of transmitting a mode change signal when the determination is made to change the communication mode, and transmitting a channel change signal when the determination is made to change the operating frequency channel.

摘要翻译： 根据一个实施例，提供了一种无线通信方法，包括：开始步骤，与第二无线设备进行连接处理; 在第一模式中执行预定项目的通信的通信步骤; 确定步骤，根据通信状态，确定是否将通信模式从第一模式改变为以比第一模式更高的速度进行通信的第二模式，将用于通信的操作频率信道改变为另一个 频道比第一频道，或继续第一模式; 以及当进行确定改变通信模式时发送模式改变信号的发送步骤，以及当做出改变操作频率信道时发送信道改变信号。

公开(公告)号：US20120163226A1

公开(公告)日：2012-06-28

申请号：US13411197

申请日：2012-03-02

申请人： Takeshi TOMIZAWA ,  Tomoya Tandai ,  Ryoko Matsuo

发明人： Takeshi TOMIZAWA ,  Tomoya Tandai ,  Ryoko Matsuo

IPC分类号： H04W24/00

CPC分类号： H04W36/06 ,  H04L1/0027 ,  H04L1/1883

摘要： According to one embodiment, a communication device includes a first wireless device configured to transmit a signal and a second wireless device configured to transmit a positive acknowledge when reception of the signal is successful. In the first wireless device, a first controller controls a first transmission module to change a first frequency channel based on a change order stored in a first storage when the positive acknowledge is not received even after the time measured by a first timer exceeds a first period. In the second wireless device, a second controller controls a second reception module to change the first frequency channel based on the change order stored in a second storage when the positive acknowledge is not transmitted even after the time measured by a second timer exceeds the first period.

摘要翻译： 根据一个实施例，通信设备包括被配置为发送信号的第一无线设备和配置成在接收到信号成功时发送肯定确认的第二无线设备。 在第一无线装置中，即使在由第一定时器测量的时间超过第一时段之后，即使在没有接收到肯定确认时，第一控制器控制第一传输模块基于存储在第一存储器中的改变顺序来改变第一频道 。 在第二无线设备中，第二控制器控制第二接收模块，即使在由第二定时器测量的时间超过第一周期之后，即使在肯定确认不被发送时，也可以基于存储在第二存储器中的改变顺序改变第一频道 。

公开(公告)号：US20120100816A1

公开(公告)日：2012-04-26

申请号：US13339893

申请日：2011-12-29

申请人： Tomoya TANDAI ,  Kentaro TANIGUCHI ,  Ryoko MATSUO ,  Takeshi TOMIZAWA

发明人： Tomoya TANDAI ,  Kentaro TANIGUCHI ,  Ryoko MATSUO ,  Takeshi TOMIZAWA

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H03G3/3078 ,  H04B17/327 ,  H04W52/52

摘要： According to one exemplary embodiment, a communication apparatus includes: a measurement module which measures reception power of each field; a determination module which determines whether the reception power is within a range; a calculator which calculates a gain using the reception power if the reception power is not within the range; an adjuster which adjusts a field according to one of an initial gain and the calculated gain; a selector which selects a field length according to the number of field adjustments by the adjuster; and a transmitter which transmits information regarding the field length. When the number of the adjustments is lower than a first threshold value, the selector selects a first value, and when the number of the adjustments is equal to or higher than the first threshold value, the selector selects a second value that is higher than the first value, as the field length.

摘要翻译： 根据一个示例性实施例，通信装置包括：测量每个场的接收功率的测量模块; 确定模块，其确定所述接收功率是否在范围内; 如果接收功率不在该范围内，则使用接收功率来计算增益的计算器; 调节器，其根据初始增益和所计算的增益之一来调整场; 选择器，其根据调节器的场调整次数选择场长; 以及发送关于场长的信息的发送器。 当调整次数低于第一阈值时，选择器选择第一值，并且当调整次数等于或高于第一阈值时，选择器选择高于第一阈值的第二值 第一个值，作为字段长度。

公开(公告)号：US20070177494A1

公开(公告)日：2007-08-02

申请号：US11534465

申请日：2006-09-22

申请人： Takeshi TOMIZAWA

发明人： Takeshi TOMIZAWA

IPC分类号： H04J11/00

CPC分类号： H04B7/0697 ,  H04L5/023

摘要： There is provided with a radio communication method in which an OFDMA scheme is used for communication from a base station to radio terminals, including: transmitting classification information for classifying the radio terminals under any one of a plurality of groups from the radio terminals to the base station; determining groups under which the radio terminals are to be classified; determining frequency channels to assign to the radio terminals; distributing slots to the groups; notifying each of the radio terminals of the control information representing a slot format, the channel assigned to the radio terminal and positions of slots; creating slot data including a plurality of symbol in each slot position; OFDM-modulating the respective symbols included in the slot data to generate a plurality of OFDM symbols; transmitting the plurality of OFDM symbols as OFDM slot data, from the base station to the radio terminals belonging to the group.

摘要翻译： 提供了一种无线电通信方法，其中使用OFDMA方案用于从基站到无线电终端的通信，包括：发送分类信息，用于将从多个组中的任何一个组的无线电终端从无线电终端分类到基站 站; 确定要对无线电终端进行分类的组; 确定要分配给无线电终端的频道; 将插槽分配到组; 向无线终端通知表示时隙格式的控制信息，分配给无线终端的信道和时隙的位置; 在每个时隙位置创建包括多个符号的时隙数据; 对包括在时隙数据中的各个符号进行OFDM调制以产生多个OFDM符号; 将所述多个OFDM符号作为OFDM时隙数据从所述基站发送到属于所述组的无线终端。