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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
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。
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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 。
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公开(公告)号：US07751824B2
公开(公告)日：2010-07-06
申请号：US11070646
申请日：2005-03-03
CPC分类号： H04W72/08 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/1685 , H04L2001/0093 , H04W28/22 , H04W72/0453
摘要： A radio communication system in which a plurality of wireless terminals form wireless channels separately between a common base station unit and wireless terminals and communicate with the base station unit, the radio communications system comprises quality managing section manages communication quality of wireless channel for each of wireless terminals by assigning occupied band of wireless channel on basis of a predetermined parameter, channel securing section secures continuously wireless channel for at least one wireless terminal by controlling data rate of the wireless channel according to change in channel state between wireless sections, and rate change detecting section supplies trigger information to quality managing section when data rate of at least one wireless channel changes as a result of control performed by channel securing section, the quality managing section, when being given trigger, updating occupied band assigned state of the wireless channel for each of wireless terminals.
摘要翻译： 一种无线电通信系统，其中多个无线终端在公共基站单元和无线终端之间分别形成无线信道并与基站单元通信，无线电通信系统包括质量管理部分管理无线信道的通信质量 终端通过基于预定参数分配无线信道的占用频带，信道保护部分通过根据无线部分之间的信道状态的变化和频率变化检测来控制无线信道的数据速率来确保至少一个无线终端的连续无线信道 当由至少一个无线信道的数据速率作为由信道保护部分执行的控制的结果而改变质量管理部分时，向质量管理部分提供触发信息，质量管理部分在被给予触发时，为每个无线信道更新占用带宽分配的无线信道的状态 的无线 终端。
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74.发明授权公开(公告)号：US08958758B2
公开(公告)日：2015-02-17
申请号：US13339893
申请日：2011-12-29
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。
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公开(公告)号：US20130210367A1
公开(公告)日：2013-08-15
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： H04W52/02
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。
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公开(公告)号：US20120170568A1
公开(公告)日：2012-07-05
申请号：US13416143
申请日：2012-03-09
申请人： Ryoko Matsuo , Tomoya Tandai , Takeshi Tomizawa
发明人： Ryoko Matsuo , Tomoya Tandai , Takeshi Tomizawa
IPC分类号： H04W74/04
摘要： In a wireless system of one embodiment, a first wireless device includes: a first transmitter which transmits an end-of-transmission notification; and a first receiver which receives a change request signal sent from a second wireless device receiving the end-of-transmission notification. The second wireless device includes: a second receiver which receives the end-of-transmission notification; and a second transmitter which transmits a change request signal when the end-of-transmission notification is received. The first transmitter transmits a signal at a longer interval after the first receiver receives the change request signal, and the second transmitter transmits a signal at a shorter interval after the second transmitter transmits the change request signal.
摘要翻译： 在一个实施例的无线系统中，第一无线设备包括：发送传输结束通知的第一发射机; 以及第一接收机，其接收从接收所述发送结束通知的第二无线设备发送的改变请求信号。 第二无线设备包括：第二接收器，其接收传输结束通知; 以及在接收到发送结束通知时发送改变请求信号的第二发送器。 第一发射机在第一接收机接收到改变请求信号之后以更长的间隔发送信号，并且第二发射机在第二发射机发送改变请求信号之后以更短的间隔发送信号。
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公开(公告)号：US20120099448A1
公开(公告)日：2012-04-26
申请号：US13224490
申请日：2011-09-02
申请人： Ryoko Matsuo , Tomoya Tandai , Takeshi Tomizawa
发明人： Ryoko Matsuo , Tomoya Tandai , Takeshi Tomizawa
CPC分类号： H04W68/005 , H04W16/32 , H04W24/10 , H04W52/0206 , H04W52/0241 , H04W88/06 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/166
摘要： A wireless apparatus includes: a first wireless unit, a second wireless unit, a controller, and a processing unit. The first wireless unit performs wireless communications in a first communication mode for performing the communications within a first communication coverage area. The second wireless unit performs wireless communications in a second communication mode for performing the communications within a second communication coverage area which is smaller than the first communication coverage area. The controller starts the second wireless unit on the basis of a received power of the start notification signal. The start notification signal is received by the first wireless unit. The processing unit manages or holds data transmitted and received by the first wireless unit and the second wireless unit.
摘要翻译： 无线装置包括：第一无线单元，第二无线单元，控制器和处理单元。 第一无线单元在第一通信模式中执行无线通信，以在第一通信覆盖区域内执行通信。 第二无线单元在第二通信模式中执行无线通信，用于在小于第一通信覆盖区域的第二通信覆盖区域内执行通信。 控制器基于开始通知信号的接收功率来启动第二无线单元。 开始通知信号由第一无线单元接收。 处理单元管理或保持由第一无线单元和第二无线单元发送和接收的数据。
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公开(公告)号：US08094615B2
公开(公告)日：2012-01-10
申请号：US11879908
申请日：2007-07-19
IPC分类号： H04W4/00
CPC分类号： H04W74/0808 , H04W16/14 , H04W74/0866 , H04W84/18 , H04W88/04
摘要： A radio communication apparatus includes a first detection unit configured to detect a first signal in a first carrier sense period contained in a pre assigned reception slot, a relaying unit configured to relay the detected first signal, a second detection unit configured to detect a second signal in a second carrier sense period contained in a pre assigned transmission slot, and a stopping unit configured to stop transmission in the transmission slot when the second detection unit detects the second signal.
摘要翻译： 一种无线电通信装置，包括：第一检测单元，被配置为检测包含在预先分配的接收时隙中的第一载波侦听周期中的第一信号;中继单元，被配置为中继检测到的第一信号;第二检测单元，被配置为检测第二信号 在包含在预分配的传输时隙中的第二载波侦听周期中，以及停止单元，被配置为当所述第二检测单元检测到所述第二信号时停止在所述传输时隙中的传输。
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公开(公告)号：US20080287066A1
公开(公告)日：2008-11-20
申请号：US12046777
申请日：2008-03-12
申请人： Tomoya Tandai , Tazuko Tomioka
发明人： Tomoya Tandai , Tazuko Tomioka
IPC分类号： H04B1/00
CPC分类号： H04W16/14 , H04L5/0007 , H04L5/003 , H04L27/2613 , H04L27/2626 , H04L27/2655 , H04W74/08 , H04W88/06
摘要： A radio communication apparatus which uses a first radio communication system that makes a radio communication by sharing frequencies with a second radio communication system, the apparatus includes a detection unit configured to detect an available frequency channel which fails to be used by the second radio communication system in a frequency band used by the first radio communication system, and a transmission unit configured to transmit, using the available frequency channel, a frame which includes a signal sequence which is used to identify whether or not the frame is transmitted by a radio communication terminal belonging to the first radio communication system by detecting the available frequency channel, the signal sequence being predetermined for the first radio communication system.
摘要翻译： 一种无线电通信装置，其使用通过与第二无线电通信系统共享频率进行无线电通信的第一无线电通信系统，该装置包括：检测单元，被配置为检测第二无线电通信系统不能使用的可用频率信道 在第一无线通信系统使用的频带中，以及发送单元，被配置为使用可用频率信道发送包括用于识别帧是否由无线电通信终端发送的信号序列的帧 属于第一无线电通信系统，通过检测可用的频道，该信号序列预定为第一无线电通信系统。
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公开(公告)号：US08724499B2
公开(公告)日：2014-05-13
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： H04L1/00
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 。
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