公开(公告)号：US20110064065A1

公开(公告)日：2011-03-17

申请号：US12950487

申请日：2010-11-19

申请人： Tetsu NAKAJIMA ,  Tomoko ADACHI ,  Masahiro TAKAGI ,  Tomoya TANDAI ,  Yoriko UTSUNOMIYA ,  Toshihisa NABETANI

发明人： Tetsu NAKAJIMA ,  Tomoko ADACHI ,  Masahiro TAKAGI ,  Tomoya TANDAI ,  Yoriko UTSUNOMIYA ,  Toshihisa NABETANI

IPC分类号： H04W40/00

CPC分类号： H04L1/1614 ,  H04L1/1678 ,  H04L1/1854 ,  H04W28/22 ,  H04W74/0816 ,  H04W84/12

摘要： A wireless communication apparatus performs bi-directional communication with an initiator. The apparatus is allocated an allocation period for data transmission from the initiator. The apparatus includes means for generating a first physical frame including an acknowledgement frame with respect to data received from the initiator, and generating a second physical frame in which a plurality of transmission data frames addressed to the initiator are aggregated. The apparatus also includes means for transmitting the first physical frame at a first transmission rate and the second physical frame at a second transmission rate, during the allocation period.

摘要翻译： 无线通信装置与发起者进行双向通信。 该设备被分配用于从发起者进行数据传输的分配周期。 该装置包括用于生成包括关于从发起者接收的数据的确认帧的第一物理帧，以及生成其中聚合了发往发起者的多个传输数据帧的第二物理帧的装置。 该装置还包括在分配周期期间以第一传输速率发射第一物理帧和第二传输速率的第二物理帧的装置。

公开(公告)号：US20090022132A1

公开(公告)日：2009-01-22

申请号：US12236608

申请日：2008-09-24

申请人： Tomoko ADACHI ,  Masahiro Takagi ,  Tomoya Tandai ,  Tetsu Nakajima ,  Yoriko Utsunomiya ,  Yasuyuki Nishibayashi ,  Daisuke Takeda

发明人： Tomoko ADACHI ,  Masahiro Takagi ,  Tomoya Tandai ,  Tetsu Nakajima ,  Yoriko Utsunomiya ,  Yasuyuki Nishibayashi ,  Daisuke Takeda

IPC分类号： H04B7/212 ,  H04Q7/00

CPC分类号： H04L1/06 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1861 ,  H04W72/1289

摘要： A wireless communication system includes first and second wireless terminals capable of performing transmission by at least one of a first transmission scheme and a second transmission scheme. The first wireless terminal performs transmission of a first frame to the second wireless terminal by using the second transmission scheme. The second wireless terminal communicates with the first wireless terminal to notify the first wireless terminal of information associated with a status of the reception of the first frame transmitted from the first wireless terminal by using the first transmission scheme.

摘要翻译： 无线通信系统包括能够通过第一传输方案和第二传输方案中的至少一个来执行传输的第一和第二无线终端。 第一无线终端通过使用第二传输方案来执行第一帧到第二无线终端的传输。 第二无线终端与第一无线终端通信，通过使用第一传输方案，向第一无线终端通知与从第一无线终端发送的第一帧的接收状态相关联的信息。

公开(公告)号：US20100074277A1

公开(公告)日：2010-03-25

申请号：US12626834

申请日：2009-11-27

申请人： Yasuyuki NISHIBAYASHI ,  Masahiro TAKAGI ,  Tomoko ADACHI ,  Tetsu NAKAJIMA ,  Yoriko UTSUNOMIYA ,  Tomoya TANDAI

发明人： Yasuyuki NISHIBAYASHI ,  Masahiro TAKAGI ,  Tomoko ADACHI ,  Tetsu NAKAJIMA ,  Yoriko UTSUNOMIYA ,  Tomoya TANDAI

IPC分类号： H04L29/02

CPC分类号： H04W99/00 ,  H04L2212/00 ,  H04W28/06

摘要： A generation device generates a frame to be transmitted to a destination communication apparatus. The frame includes a first separation field, a first MAC protocol data unit (MPDU) following the first separation field, a second separation field following the first MPDU, a third separation field following the second separation field, and a third MPDU following the third separation field. The second separation field includes length information set to a value of zero to indicate no second MPDU directly follows the second separation field. The first MPDU includes a first MAC header, a first data field, and a first frame check sequence (FCS). The first FCS is for detecting an error occurred in at least the first data field. The third MPDU includes a third MAC header, a third data field, and a third FCS. The third FCS is for detecting an error occurred in at least the third data field.

摘要翻译： 生成装置生成要发送到目的地通信装置的帧。 帧包括第一分离字段，第一分离字段之后的第一MAC协议数据单元（MPDU），第​​一MPDU之后的第二分离字段，跟随第二分离字段的第三分离字段和第三分离之后的第三MPDU 领域。 第二分离字段包括设置为零值的长度信息，以指示没有第二MPDU直接跟随第二分离字段。 第一MPDU包括第一MAC头，第一数据字段和第一帧校验序列（FCS）。 第一FCS用于检测在至少第一数据字段中发生的错误。 第三MPDU包括第三MAC头，第三数据字段和第三FCS。 第三FCS用于检测至少在第三数据字段中发生的错误。

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：US20080192644A1

公开(公告)日：2008-08-14

申请号：US12027606

申请日：2008-02-07

申请人： Yoriko UTSUNOMIYA ,  Tomoko ADACHI ,  Masahiro TAKAGI

发明人： Yoriko UTSUNOMIYA ,  Tomoko ADACHI ,  Masahiro TAKAGI

IPC分类号： H04J1/16

CPC分类号： H04W72/082 ,  H04B7/2656 ,  H04W28/20

摘要： A radio communication apparatus that performs first radio communication using a first channel among two first channels each having a first channel width, and second radio communication using a second channel having a second channel width that is wider than the first channel width and also having a channel width overlapping with the two first channels. The apparatus includes an interference detection device which detects that interference occurs in the first channel among the two first channels, and a frame generation unit which generates a notification frame that recommends the use of only the first channel width. An instruction unit instructs the frame generation unit to generate the notification frame when the occurrence of interference is detected by the interference detection device. A frame transmission unit transmits the notification frame generated from the frame generation unit in response to the instruction from the instruction unit.

摘要翻译： 一种无线通信装置，其使用具有第一信道宽度的两个第一信道中的第一信道进行第一无线通信，以及使用具有比第一信道宽度宽的第二信道宽度的第二信道的第二无线通信，并且还具有信道 宽度与两个第一通道重叠。 该装置包括检测在两个第一信道中的第一信道中发生干扰的干扰检测装置，以及生成建议仅使用第一信道宽度的通知帧的帧生成单元。 当干扰检测装置检测到干扰的发生时，指令单元指示帧生成单元生成通知帧。 帧传输单元响应于来自指令单元的指令发送从帧生成单元生成的通知帧。

公开(公告)号：US20090323608A1

公开(公告)日：2009-12-31

申请号：US12410742

申请日：2009-03-25

申请人： Tomoko ADACHI ,  Toshihisa NABETANI ,  Kiyoshi TOSHIMITSU ,  Tatsuma HIRANO

发明人： Tomoko ADACHI ,  Toshihisa NABETANI ,  Kiyoshi TOSHIMITSU ,  Tatsuma HIRANO

IPC分类号： H04W76/00

CPC分类号： H04W72/0453 ,  H04W28/20 ,  H04W48/08 ,  H04W48/10 ,  H04W48/18 ,  H04W88/10

摘要： A wireless communication apparatus which can simultaneously conduct communication on at least two frequency channels is described. The apparatus includes a communication unit which refers to a connection management table to determine a communication system which can be used by a wireless communication terminal using an identifier of the wireless communication terminal, and conducts communication with the wireless communication terminal on a second frequency channel using the communication system, when a request from the wireless communication terminal to change the first frequency channel to the second frequency channel is permitted.

摘要翻译： 描述了可以在至少两个频率信道上同时进行通信的无线通信装置。 该装置包括通信单元，其参考连接管理表以确定可以由无线通信终端使用无线通信终端的标识符使用的通信系统，并且在第二频率信道上使用第二频道进行与无线通信终端的通信 当来自无线通信终端的请求将第一频道改变为第二频道时，该通信系统被允许。

公开(公告)号：US20120195296A1

公开(公告)日：2012-08-02

申请号：US13223587

申请日：2011-09-01

申请人： Tomoko ADACHI ,  Koichiro Ban ,  Tomoya Tandai ,  Hideo Kasami

发明人： Tomoko ADACHI ,  Koichiro Ban ,  Tomoya Tandai ,  Hideo Kasami

IPC分类号： H04W84/12

CPC分类号： H04W52/34 ,  H04W16/14 ,  H04W52/54 ,  H04W72/048 ,  H04W72/082 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/06

摘要： According to embodiments, a wireless communication apparatus supports at least a second wireless communication scheme between a first, wireless communication scheme and the second wireless communication scheme. The first wireless communication scheme requires that a wireless medium is determined to be busy when a reception level is equal to or greater than a minimum reception sensitivity level of physical scheme. The apparatus includes a first processing unit and a second processing unit. The first processing unit is configured to set a value lower than a maximum transmission power of the first wireless communication scheme, for a maximum transmission power of the second wireless communication scheme and set a value greater than the minimum reception sensitivity level, of the physical scheme, for a carrier sense level, when the second wireless communication scheme is used. The second processing unit is configured to carry out carrier sense using the carrier sense level.

摘要翻译： 根据实施例，无线通信装置支持第一无线通信方案和第二无线通信方案之间的至少第二无线通信方案。 第一无线通信方案要求当接收电平等于或大于物理方案的最小接收灵敏度级别时，无线介质被确定为忙。 该装置包括第一处理单元和第二处理单元。 第一处理单元被配置为针对第二无线通信方案的最大发送功率设置低于第一无线通信方案的最大发送功率的值，并且设置大于物理方案的最小接收灵敏度水平的值 对于载波感测电平，当使用第二无线通信方案时。 第二处理单元被配置为使用载波感测电平来执行载波侦听。

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：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：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.