公开(公告)号：US09066245B2

公开(公告)日：2015-06-23

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： H04W74/08 ,  H04W84/12 ,  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.

摘要翻译： 根据一个实施例，无线通信设备设置有第一和第二确定单元。 第一单元基于第一载波感测阈值来确定是否处于忙状态，并且在第一阈值确定忙状态时指定第一时间，并且基于小于第一阈值的第二载波感测阈值来确定是否处于忙状态 并且在确定忙状态时指定第二次。 第二单元确定如果基于第二阈值确定至少忙状态并且第二时间在等于或早于第一时间的参考时间之前，则执行用于避免干扰的处理。

公开(公告)号：US08811931B2

公开(公告)日：2014-08-19

申请号：US13583803

申请日：2010-04-06

申请人： Takeshi Tomizawa ,  Tomoya Tandai ,  Ryoko Matsuo

发明人： Takeshi Tomizawa ,  Tomoya Tandai ,  Ryoko Matsuo

IPC分类号： H04B1/16 ,  H04W52/02 ,  H04B1/04

CPC分类号： H04W52/0225 ,  H04W52/0258 ,  Y02D70/00

摘要： According to one embodiment, a radio apparatus includes: a radio unit; a timer configured to count a first measurement time; a control unit configured to establish a first mode if the first measurement time is shorter than a first time, and establish a second mode if the first measurement time is longer than or equal to the first time; and a power control unit configured to control power to be supplied to the radio unit if the first mode is set and next data is not received even if a second time elapsed, and control power to be supplied to the radio unit if the second mode is set and next data is not received even if a third time elapsed, wherein the radio unit makes a transition to a sleep mode as a result of a power control by the power control unit.

摘要翻译： 根据一个实施例，无线电设备包括：无线电单元; 定时器，被配置为对第一测量时间进行计数; 如果所述第一测量时间比第一时间短，则建立第一模式的控制单元，以及如果所述第一测量时间大于或等于所述第一测量时间，则建立第二模式; 以及功率控制单元，被配置为如果设置了第一模式并且即使经过第二时间也不接收到下一个数据，则控制向无线电单元提供的功率，以及如果第二模式是否被提供给无线电单元的控制功率 即使经过了第三次也不接收设定和下一个数据，其中无线电单元作为功率控制单元的功率控制的结果转变到休眠模式。

公开(公告)号：US20130028154A1

公开(公告)日：2013-01-31

申请号：US13562858

申请日：2012-07-31

申请人： Ryoko Matsuo ,  Tomoya Tandai ,  Takeshi Tomizawa

发明人： Ryoko Matsuo ,  Tomoya Tandai ,  Takeshi Tomizawa

IPC分类号： H04W40/00

CPC分类号： H04L1/1685 ,  H04L1/1671

摘要： One embodiment provides a wireless apparatus including: a reception unit which receives a data signal having a header field and a data field, the header field including a reply request which specifies either an acknowledgement or a negative acknowledgement; a decision unit which decides a reception result indicating whether the header field and the data field have been received successfully or unsuccessfully; and a transmission unit which transmits the acknowledgement or the negative acknowledgement in accordance with the reply request and the reception result of the data field when the header field has been received successfully, and transmits the negative acknowledgement when the header field has been received unsuccessfully.

摘要翻译： 一个实施例提供了一种无线装置，包括：接收单元，其接收具有报头字段和数据字段的数据信号，所述报头字段包括指定确认或否定确认的应答请求; 确定单元，其决定表示头字段和数据字段是否已成功接收或不成功的接收结果; 以及发送单元，其当头部字段已被成功接收时，根据应答请求和数据字段的接收结果发送确认或否定确认，并且当头字段已经被成功接收时发送否定确认。

公开(公告)号：US09717049B2

公开(公告)日：2017-07-25

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.

公开(公告)号：US20130051335A1

公开(公告)日：2013-02-28

申请号：US13406885

申请日：2012-02-28

申请人： Tomoko ADACHI ,  Ryoko Matsuo ,  Tomoya Tandai ,  Takeshi Tomizawa

发明人： Tomoko ADACHI ,  Ryoko Matsuo ,  Tomoya Tandai ,  Takeshi Tomizawa

IPC分类号： H04W72/04

CPC分类号： H04W74/0816 ,  H04W4/80 ,  H04W16/14 ,  H04W74/0808 ,  H04W84/12 ,  Y02D70/10

摘要： According to one embodiment, a wireless communication apparatus includes a storage, a selection unit, a processing unit. The storage stores a first set and a second set, including first frame spaces of one or more types and the second set including second frame spaces of the one or more types, each of the second frame spaces that are identical in type to the first frame spaces being not less than the first frame spaces, and a second frame space of any one of the types being longer than a first frame space of the any one of the types. The selection unit selects either the first set or the second set. The processing unit communicates with a first apparatus, by using either the first frame spaces or the second frame spaces.

摘要翻译： 根据一个实施例，无线通信装置包括存储器，选择单元，处理单元。 存储器存储第一组和第二组，包括一个或多个类型的第一帧空间，并且第二组包括一个或多个类型的第二帧空间，每个第二帧空间的类型与第一帧相同 空格不小于第一帧空间，并且任何一种类型的第二帧空间比任一种类型的第一帧空间长。 选择单元选择第一组或第二组。 处理单元通过使用第一帧空间或第二帧空间与第一装置进行通信。

公开(公告)号：US08089927B2

公开(公告)日：2012-01-03

申请号：US12186878

申请日：2008-08-06

申请人： Ryoko Matsuo ,  Tomoya Tandai ,  Toshihisa Nabetani

发明人： Ryoko Matsuo ,  Tomoya Tandai ,  Toshihisa Nabetani

IPC分类号： H04W4/00 ,  H04B7/212

CPC分类号： H04W52/0219 ,  H04W52/0216 ,  H04W76/20 ,  Y02D70/142

摘要： A wireless communication device includes: an analyzing unit for analyzing an MAC header of a received frame; a storage unit for storing a source address when analyzed that the received frame is a suspension signal for suspending an occupancy of a radio channel; a determination unit for determining whether or not the source address of the received frame is stored in the storage unit when analyzed that a destination address of the received frame is for other device; and a power controlling unit for suspending a power supply to the demodulation unit and the analyzing unit for a remaining time of a period for occupying the radio channel which is described on the MAC header when determined that the source address is not stored.

摘要翻译： 一种无线通信设备包括：分析单元，用于分析接收到的帧的MAC报头; 存储单元，用于在分析时存储所接收的帧是用于暂停无线电信道占用的暂停信号的源地址; 确定单元，用于当分析所接收的帧的目的地地址是否用于其他设备时，确定所接收的帧的源地址是否被存储在所述存储单元中; 以及功率控制单元，用于当确定源地址未被存储时，在用于占用MAC报头上描述的无线电信道的周期的剩余时间内将解调单元和分析单元的电源暂停。

公开(公告)号：US20090040965A1

公开(公告)日：2009-02-12

申请号：US12186878

申请日：2008-08-06

申请人： Ryoko Matsuo ,  Tomoya Tandai ,  Toshihisa Nabetani

发明人： Ryoko Matsuo ,  Tomoya Tandai ,  Toshihisa Nabetani

IPC分类号： H04W88/02

CPC分类号： H04W52/0219 ,  H04W52/0216 ,  H04W76/20 ,  Y02D70/142

摘要： A wireless communication device includes: an analyzing unit for analyzing an MAC header of a received frame; a storage unit for storing a source address when analyzed that the received frame is a suspension signal for suspending an occupancy of a radio channel; a determination unit for determining whether or not the source address of the received frame is stored in the storage unit when analyzed that a destination address of the received frame is for other device; and a power controlling unit for suspending a power supply to the demodulation unit and the analyzing unit for a remaining time of a period for occupying the radio channel which is described on the MAC header when determined that the source address is not stored.

摘要翻译： 一种无线通信设备包括：分析单元，用于分析接收到的帧的MAC报头; 存储单元，用于在分析时存储所接收的帧是用于暂停无线电信道占用的暂停信号的源地址; 确定单元，用于当分析所接收的帧的目的地地址是否用于其他设备时，确定所接收的帧的源地址是否被存储在所述存储单元中; 以及功率控制单元，用于当确定源地址未被存储时，在用于占用MAC报头上描述的无线电信道的周期的剩余时间内将解调单元和分析单元的电源暂停。

公开(公告)号：US20120110405A1

公开(公告)日：2012-05-03

申请号：US13310153

申请日：2011-12-02

申请人： Kiyoshi TOSHIMITSU ,  Tomoya Tandai ,  Ryoko Matsuo

发明人： Kiyoshi TOSHIMITSU ,  Tomoya Tandai ,  Ryoko Matsuo

IPC分类号： H04W24/00 ,  H04L12/26

CPC分类号： H04L1/1642 ,  H04L1/1635

摘要： According to one exemplary embodiment, a communication device includes: a receiver which receives a frame including data, a first error detection code for detecting an error of the data, a sequence number of the data, and a second error detection code for detecting an error of the sequence number; a first detector which detects the error of the data using the first error detection code; a second detector which detects the error of the sequence number using the second error detection code; a generator which generates an acknowledgement frame having maximum sequence number information regarding a maximum sequence number in a frame for which the error of the sequence number is not detected, and acknowledgement information representing whether there is an error for data in each frame of which the sequence number being equal to or less than the maximum sequence number; and a transmitter which transmits the acknowledgement frame.

摘要翻译： 根据一个示例性实施例，通信设备包括：接收器，其接收包括数据的帧，用于检测数据的错误的第一错误检测码，数据的序列号以及用于检测错误的第二错误检测码 的序列号; 第一检测器，使用第一检错码检测数据的误差; 第二检测器，使用第二检错码检测序列号的错误; 产生具有关于未检测到序列号的错误的帧中的最大序列号的最大序列号信息的确认帧的确认信息，以及表示该序列的每个帧中的数据是否存在错误的确认信息 数量等于或小于最大序列号; 以及发送确认帧的发送机。

公开(公告)号：US08995346B2

公开(公告)日：2015-03-31

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： A wireless communication apparatus performs 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. The wireless communication apparatus includes a remaining time calculating unit which calculates a remaining time until a request delay time time-outs after data is generated, and a setting unit which sets the contention window width according to the remaining time calculated by the remaining time calculating unit.

摘要翻译： 无线通信装置执行从退避时间过去开始传输的访问控制，因为通过载波侦听检测到信道的可用状态，基于在竞争窗口宽度内选择的随机值设置退避时间。 无线通信装置包括剩余时间计算单元，该剩余时间计算单元计算在生成数据之后的请求延迟时间超时之前的剩余时间，以及设置单元，其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：US08483195B2

公开(公告)日：2013-07-09

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： H04W4/00 ,  H04B7/00

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，则使发送单元设置确认。