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：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：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：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：US20130155955A1

公开(公告)日：2013-06-20

申请号：US13717361

申请日：2012-12-17

申请人： Toshihisa NABETANI ,  Ryoko MATSUO ,  Tomoko ADACHI ,  Tomoya TANDAI

发明人： Toshihisa NABETANI ,  Ryoko MATSUO ,  Tomoko ADACHI ,  Tomoya TANDAI

IPC分类号： H04W74/08

CPC分类号： H04W74/0816 ,  H04L1/1887 ,  H04W28/18 ,  H04W74/0833

摘要： There is provided a wireless communication apparatus performing access control which starts transmission after a backoff time passes since an available state of a channel is detected through carrier sense, the backoff time being set based on a random value selected within a contention window width, including: a remaining time calculating unit calculating a remaining time untill a request delay time time-outs after data is generated and a setting unit setting the contention window width according to the remaining time calculated by the remaining time calculating unit.

摘要翻译： 提供了一种执行访问控制的无线通信装置，其在通过载波侦听检测到信道的可用状态之后，在退避时间过去之后开始传输，基于在竞争窗口宽度内选择的随机值来设置退避时间，包括： 剩余时间计算单元计算直到生成数据之后超时的请求延迟时间的剩余时间，以及设置单元，根据由剩余时间计算单元计算的剩余时间设置争用窗口宽度。

公开(公告)号：US20100226349A1

公开(公告)日：2010-09-09

申请号：US12561447

申请日：2009-09-17

申请人： Ryoko MATSUO ,  Tomoya TANDAI

发明人： Ryoko MATSUO ,  Tomoya TANDAI

IPC分类号： H04W88/02 ,  H04L12/413

CPC分类号： H04L1/188 ,  H04L1/0002 ,  H04L1/1887

摘要： A wireless communication apparatus has a transmission unit that transmits a transmit signal in a condition where either acknowledgement or negative acknowledgement is set therein, a reception unit that receives a response signal in response to the transmission signal, a counter that counts the number of times the reception unit has not received the negative acknowledgment signal in response to the transmission signal in which the negative acknowledgement is set, and a control unit that causes the transmission unit to set the negative acknowledgement if a count value of the counter is less than a predetermined value and, if the count value is equal to or larger than the predetermined value, causes the transmission unit to set the acknowledgement.

摘要翻译： 无线通信装置具有发送单元，其在其中设置了确认或否定确认的条件下发送发送信号，响应于发送信号接收响应信号的接收单元，计数该次数的计数器 接收单元响应于设置了否定确认的发送信号而没有接收到否定确认信号;以及控制单元，如果计数器的计数值小于预定值，则使得发送单元设置否定确认 并且如果计数值等于或大于预定值，则使发送单元设定确认。

公开(公告)号：US20120129463A1

公开(公告)日：2012-05-24

申请号：US13223928

申请日：2011-09-01

申请人： Tomoya TANDAI ,  Koji Akita ,  Takeshi Tomizawa

发明人： Tomoya TANDAI ,  Koji Akita ,  Takeshi Tomizawa

IPC分类号： H04B17/00

CPC分类号： H04W56/00 ,  H04B17/00

摘要： According to one embodiment, a wireless communication apparatus includes following units. The first timer measures first time intervals. The second timer measures second time intervals. The time interval selection unit selects a second time interval among second time intervals included in each first time interval. The control unit controls the transmitting unit and the receiving unit to operate, during the selected second time interval, in a first operational state in which a transmission of a connection request signal and a wait for reception of a response signal are repeatedly performed, and to operate, during each of the second time intervals other than the selected second time interval, in a second operational state in which a wait for reception of a connection request signal transmitted by another apparatus is performed for a third time interval shorter than each of the second time intervals.

摘要翻译： 根据一个实施例，无线通信装置包括以下单元。 第一个计时器测量第一时间间隔。 第二个定时器测量第二个时间间隔。 时间间隔选择单元选择在每个第一时间间隔中包括的第二时间间隔中的第二时间间隔。 控制单元控制发送单元和接收单元在所选择的第二时间间隔期间在重复执行连接请求信号的发送和等待接收响应信号的第一操作状态下操作，并且 在所选择的第二时间间隔之外的每个第二时间间隔期间，在第二操作状态下操作其中等待接收另一设备发送的连接请求信号的时间比第二时间间隔短的第三时间间隔 时间间隔。

公开(公告)号：US20120129470A1

公开(公告)日：2012-05-24

申请号：US13221504

申请日：2011-08-30

申请人： Tomoya TANDAI ,  Koji Akita ,  Takeshi Tomizawa

发明人： Tomoya TANDAI ,  Koji Akita ,  Takeshi Tomizawa

IPC分类号： H04W88/02

CPC分类号： H04W76/14 ,  H04W24/10 ,  H04W84/18

摘要： According to one embodiment, a wireless communication apparatus includes a first timer, a generation unit, a transmitter, a receiver and a control unit. The first timer is configured to periodically measure a first time interval. The generation unit is configured to generate a connection request frame. The transmitter is configured to transmit the connection request frame. The receiver is configured to receive a response signal provided in response to the connection request frame. The control unit is configured to control the transmitter and the receiver in such a manner that iterative attempts are made to carry out a transmission of the connection request frame and a wait for reception of the response signal during the first time interval measured by the first timer.

摘要翻译： 根据一个实施例，无线通信装置包括第一定时器，生成单元，发送器，接收器和控制单元。 第一定时器被配置为周期性地测量第一时间间隔。 生成单元被配置为生成连接请求帧。 发送器被配置为发送连接请求帧。 接收器被配置为接收响应于连接请求帧而提供的响应信号。 控制单元被配置为以这样的方式控制发送器和接收器，即，进行迭代尝试以执行连接请求帧的传输，并且在由第一定时器测量的第一时间间隔期间等待接收响应信号 。

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：US20120220228A1

公开(公告)日：2012-08-30

申请号：US13223779

申请日：2011-09-01

申请人： Tomoya TANDAI ,  Tomoko Adachi ,  Takeshi Tomizawa

发明人： Tomoya TANDAI ,  Tomoko Adachi ,  Takeshi Tomizawa

IPC分类号： H04B5/00

CPC分类号： H04W76/02 ,  H04W72/02 ,  H04W72/082 ,  H04W76/10

摘要： According to one embodiment, there is provided a wireless communication apparatus for making wireless connection in the first connection attempt state wherein a connection request is attempted using a predetermined frequency channel or the second connection attempt state wherein a connection request is attempted using a plurality of frequency channels. A frame generation unit generates a connection request frame which includes the first field for requesting a search of the plurality of frequency channels in response to occurrence of interference, and the second field indicating whether a corresponding frequency channel is a channel wherein occurrence of interference has been detected. A transmission unit transmits the connection request frame using the predetermined frequency channel in the first connection attempt state, and transmits the connection request frame using the plurality of frequency channels in the second connection attempt state.

摘要翻译： 根据一个实施例，提供了一种无线通信装置，用于在第一连接尝试状态中进行无线连接，其中使用预定频率信道尝试连接请求或第二连接尝试状态，其中尝试使用多个频率的连接请求 频道 帧生成单元生成连接请求帧，该连接请求帧包括响应于干扰的发生而请求搜索多个频道的第一字段，以及指示对应的频道是否是干扰发生的频道的第二字段 检测到。 传输单元在第一连接尝试状态下使用预定频道发送连接请求帧，并且在第二连接尝试状态下使用多个频道发送连接请求帧。