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    Method and system for enhanced contention avoidance in multi-user multiple-input-multiple-output wireless networks
    1.
    发明授权
    Method and system for enhanced contention avoidance in multi-user multiple-input-multiple-output wireless networks 有权
    在多用户多输入多输出无线网络中增强竞争避免的方法和系统

    公开(公告)号：US08917743B2

    公开(公告)日：2014-12-23

    申请号：US13253926

    申请日：2011-10-05

    申请人： Chunhui Zhu ,  Osama Aboul-Magd ,  Youngsoo Kim

    发明人： Chunhui Zhu ,  Osama Aboul-Magd ,  Youngsoo Kim

    IPC分类号： H04L12/413 ,  H04W72/04 ,  H04W74/08 ,  H04L12/43 ,  H04W74/00 ,  H04W72/00

    CPC分类号： H04W72/042 ,  H04W72/005 ,  H04W72/0413 ,  H04W74/006 ,  H04W74/0816

    摘要： Wireless medium reservation for simultaneous transmission of multiple downlink spatial streams to multiple receiver wireless stations during a multi-user transmit opportunity over a wireless medium, is provided. Such a reservation includes reserving a transmission period for simultaneously transmitting data from a transmitting station to multiple intended receiving stations on multiple downlink spatial streams over a wireless communication medium. Reserving the transmission period includes transmitting a multi-user request-to-send (MU-RTS) frame to the multiple receiving stations, the RTS frame including a receiver address (RA) field comprising compressed addresses for the multiple receiving stations. The MU-RTS frame includes an indication field that indicates the RTS frame as an MU-RTS without altering the RTS frame type/subtype.

    摘要翻译： 提供了在通过无线介质的多用户发送机会期间将多个下行链路空间流同时发送到多个接收机无线站的无线介质预留。 这样的预约包括在无线通信介质上保留用于在多个下行链路空间流上同时从发射台向多个预定接收站发送数据的传输周期。 保留传输周期包括向多个接收站发送多用户请求发送（MU-RTS）帧，RTS帧包括包括多个接收站的压缩地址的接收机地址（RA）字段。 MU-RTS帧包括指示字段，其指示RTS帧作为MU-RTS而不改变RTS帧类型/子类型。

    Method and system for multi-user transmit opportunity for multi-user multiple-input-multiple-output wireless networks
    2.
    发明授权
    Method and system for multi-user transmit opportunity for multi-user multiple-input-multiple-output wireless networks 有权
    多用户多输入多输出无线网络的多用户传输机会的方法和系统

    公开(公告)号：US09332571B2

    公开(公告)日：2016-05-03

    申请号：US13030070

    申请日：2011-02-17

    申请人： Chunhui Zhu ,  Youngsoo Kim

    发明人： Chunhui Zhu ,  Youngsoo Kim

    IPC分类号： H04W74/08 ,  H04W72/00

    CPC分类号： H04B7/0413 ,  H04W72/005 ,  H04W74/08

    摘要： Wireless communication in a wireless system using a multiple user transmission opportunity is provided. Data blocks at a wireless station are transmitted to multiple wireless receivers over a shared wireless communication medium. The data blocks are organized in order of transmission priority based on access categories. Contention for access to the communication medium during a transmission opportunity period is based on a backoff timer of each access category and the transmission priority. Upon successful contention for a transmission opportunity period, during the transmission opportunity period, a data block of a primary access category is wirelessly transmitted from the wireless station to one or more primary destination wireless receivers. Simultaneously, a data block of a secondary access category is wirelessly transmitted from the wireless station to one or more secondary destination wireless receivers.

    摘要翻译： 提供了使用多用户传输机会的无线系统中的无线通信。 通过共享的无线通信介质将无线站的数据块发送到多个无线接收器。 数据块按照访问类别的传输优先级顺序进行组织。 在传输机会期间对通信介质的访问的竞争是基于每个访问类别的退避定时器和传输优先级。 在传输机会期间成功争用时，在传输机会期间，将主要接入类别的数据块从无线站无线发送到一个或多个主要目的地无线接收机。 同时，二次访问类别的数据块从无线站无线发送到一个或多个次要目的地无线接收机。

    ENHANCED POWER SAVE MULTI-POLL (PSMP) PROTOCOL FOR MULTI-USER MIMO BASED WIRELESS LOCAL AREA NETWORKS
    3.
    发明申请
    ENHANCED POWER SAVE MULTI-POLL (PSMP) PROTOCOL FOR MULTI-USER MIMO BASED WIRELESS LOCAL AREA NETWORKS 审中-公开
    用于多用户MIMO的无线局域网的增强功率节省多POLL（PSMP）协议

    公开(公告)号：US20120207071A1

    公开(公告)日：2012-08-16

    申请号：US13397628

    申请日：2012-02-15

    申请人： Chunhui Zhu ,  Osama Aboul-Magd ,  Youngsoo Kim

    发明人： Chunhui Zhu ,  Osama Aboul-Magd ,  Youngsoo Kim

    IPC分类号： H04W52/02 ,  G08C17/02

    CPC分类号： H04W52/0206 ,  H04B7/0452 ,  Y02D70/142 ,  Y02D70/444

    摘要： Wireless communication in a wireless communication system, comprises maintaining data blocks at a wireless transmitting station for transmission to multiple wireless receiving stations over a shared wireless communication medium, and simultaneously transmitting data blocks from the transmitting station over multiple spatial streams to multiple destination wireless receiving stations in a power save multi-poll (PSMP) sequence, via the wireless communication medium.

    摘要翻译： 无线通信系统中的无线通信包括维持无线发射站处的数据块，以通过共享的无线通信介质传输到多个无线接收站，同时通过多个空间流将数据块从发射站发射到多个目的地无线接收站 在节电多轮询（PSMP）序列中，经由无线通信介质。

    METHOD AND SYSTEM FOR MULTI-USER TRANSMIT OPPORTUNITY FOR MULTI-USER MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS NETWORKS
    4.
    发明申请
    METHOD AND SYSTEM FOR MULTI-USER TRANSMIT OPPORTUNITY FOR MULTI-USER MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS NETWORKS 有权
    用于多用户多输入多输出无线网络的多用户发送机制的方法和系统

    公开(公告)号：US20110255618A1

    公开(公告)日：2011-10-20

    申请号：US13030070

    申请日：2011-02-17

    申请人： Chunhui Zhu ,  Youngsoo Kim

    发明人： Chunhui Zhu ,  Youngsoo Kim

    IPC分类号： H04L27/28 ,  H04L27/00

    CPC分类号： H04B7/0413 ,  H04W72/005 ,  H04W74/08

    摘要： Wireless communication in a wireless system using a multiple user transmission opportunity is provided. Data blocks at a wireless station are transmitted to multiple wireless receivers over a shared wireless communication medium. The data blocks are organized in order of transmission priority based on access categories. Contention for access to the communication medium during a transmission opportunity period is based on a backoff timer of each access category and the transmission priority. Upon successful contention for a transmission opportunity period, during the transmission opportunity period, a data block of a primary access category is wirelessly transmitted from the wireless station to one or more primary destination wireless receivers. Simultaneously, a data block of a secondary access category is wirelessly transmitted from the wireless station to one or more secondary destination wireless receivers.

    摘要翻译： 提供了使用多用户传输机会的无线系统中的无线通信。 通过共享的无线通信介质将无线站的数据块发送到多个无线接收器。 数据块按照访问类别的传输优先级顺序进行组织。 在传输机会期间对通信介质的访问的竞争是基于每个访问类别的退避定时器和传输优先级。 在传输机会期间成功争用时，在传输机会期间，将主要接入类别的数据块从无线站无线发送到一个或多个主要目的地无线接收机。 同时，二次访问类别的数据块从无线站无线发送到一个或多个次要目的地无线接收机。

    Pilot signal power control apparatus and operation method of pilot signal power control apparatus
    7.
    发明授权
    Pilot signal power control apparatus and operation method of pilot signal power control apparatus 有权
    导频信号功率控制装置及导频信号功率控制装置的运行方法

    公开(公告)号：US08099051B2

    公开(公告)日：2012-01-17

    申请号：US12038995

    申请日：2008-02-28

    申请人： Tae Soo Kwon ,  In Sun Lee ,  Hyo Sun Hwang ,  Youngsoo Kim ,  Hyun Ho Choi ,  Young Hoon Lee ,  Young Chul Sung ,  Hee Jung Yu ,  Young Seok Oh

    发明人： Tae Soo Kwon ,  In Sun Lee ,  Hyo Sun Hwang ,  Youngsoo Kim ,  Hyun Ho Choi ,  Young Hoon Lee ,  Young Chul Sung ,  Hee Jung Yu ,  Young Seok Oh

    IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B17/00

    CPC分类号： H04W52/325 ,  H04B17/336 ,  H04W52/223

    摘要： A pilot signal power control apparatus to determine a power level of a pilot signal of a primary network to indicate an availability of a wireless resource of thereof to a secondary user of a secondary network according to a cognitive radio technology, the pilot signal power control apparatus and an operation method thereof, the pilot signal power control apparatus including: a prediction unit to predict a noise increase and/or a sensing probability, the noise increase occurring in a primary user of the primary network due to a channel estimation error, and the sensing probability being a probability that a secondary user senses the pilot signal of; a channel capacity calculation unit to calculate a channel capacity of the primary user based on the predicted noise increase and/or sensing probability; and a power level determination unit to determine the power level of the pilot signal using the calculated channel capacity.

    摘要翻译： 一种导频信号功率控制装置，用于根据认知无线电技术确定主网络的导频信号的功率电平，以指示辅助网络的辅助用户的无线资源的可用性，所述导频信号功率控制装置 导频信号功率控制装置包括：预测单元，用于预测噪声增加和/或感测概率，由于信道估计误差而在主网络的主要用户中发生的噪声增加，以及 感测概率是次要用户感测导频信号的概率; 信道容量计算单元，用于基于预测的噪声增加和/或感测概率来计算主用户的信道容量; 以及功率电平确定单元，用于使用所计算的信道容量来确定导频信号的功率电平。

    COGNITIVE RADIO COMMUNICATION TERMINAL AND METHOD FOR DETECTING COLLISION USING FEATURE DETECTION
    9.
    发明申请
    COGNITIVE RADIO COMMUNICATION TERMINAL AND METHOD FOR DETECTING COLLISION USING FEATURE DETECTION 有权
    认知无线电通信终端和使用特征检测检测冲突的方法

    公开(公告)号：US20100091789A1

    公开(公告)日：2010-04-15

    申请号：US12400193

    申请日：2009-03-09

    申请人： Hyun Ho CHOI ,  Kyung Hun Jang ,  Youngsoo Kim ,  Chan Soo Hwang ,  Hyo Sun Hwang

    发明人： Hyun Ho CHOI ,  Kyung Hun Jang ,  Youngsoo Kim ,  Chan Soo Hwang ,  Hyo Sun Hwang

    IPC分类号： H04L12/413 ,  H04L12/43

    CPC分类号： H04L12/413 ,  H04W16/14 ,  H04W24/00 ,  H04W72/0446

    摘要： A cognitive radio communication terminal including a transmission processing unit to divide data by a quiet time slot that is allocated at a first point in time of a collision detection period, to transmit at least one portion of the divided data to a reception side, and a sensing unit to determine whether at least one of a feature information and an energy of another terminal is detected in a channel with the reception side during the quiet time slot of the first point in time. Where neither the feature information nor the energy of the other terminal is detected based on a determination of the sensing unit, the transmission processing unit transmits the remaining divided data.

    摘要翻译： 一种认知无线电通信终端，包括发送处理单元，用于将数据除以在冲突检测周期的第一时间点分配的安静时隙，以将所划分的数据的至少一部分发送到接收侧;以及 感测单元，用于确定在第一时间点的安静时隙期间在与接收侧的频道中是否检测到另一终端的特征信息和能量中的至少一个。 基于感测单元的确定，既不检测到另一终端的特征信息和能量，则发送处理单元发送剩余的分割数据。

    VACUUM CLEANER
    10.
    发明申请
    VACUUM CLEANER 审中-公开
    吸尘器

    公开(公告)号：US20100005617A1

    公开(公告)日：2010-01-14

    申请号：US12446891

    申请日：2007-02-23

    申请人： Kie-Tak Hyun ,  Kyeong-Seon Jeong ,  Jong-Kyu Jang ,  Chung-Ook Chong ,  Jinhyouk Shin ,  Geunbae Hwang ,  Youngsoo Kim

    发明人： Kie-Tak Hyun ,  Kyeong-Seon Jeong ,  Jong-Kyu Jang ,  Chung-Ook Chong ,  Jinhyouk Shin ,  Geunbae Hwang ,  Youngsoo Kim

    IPC分类号： A47L9/16

    CPC分类号： A47L9/1641 ,  A47L9/1625 ,  A47L9/1666 ,  B04C5/13 ,  B04C5/26 ,  B04C5/28 ,  B04C2009/004

    摘要： The present invention discloses a vacuum cleaner which can improve the cleaning performance by filtering off impurities from the sucked air twice according to a cyclone method, and allow the user to easily discharge the collected impurities. The vacuum cleaner includes a primary cyclone unit (100), a secondary cyclone unit (120), and a passage partition unit (131) formed between the primary cyclone unit and the secondary cyclone unit. The sucked air is primarily filtered in the primary cyclone unit (110), and secondarily filtered in the secondary cyclone unit (120), thereby improving the cleaning performance. In addition, a dust container (140) is detachably coupled to the primary cyclone unit (110) or the secondary cyclone unit (120). Therefore, the user can easily remove the impurities collected in the dust container (140) by separating the dust container (140) from the primary and secondary cyclone units.

    摘要翻译： 本发明公开了一种真空吸尘器，其可以通过根据旋风方法从吸入的空气中过滤掉两次的杂质来提高清洗性能，并且允许使用者容易地排出所收集的杂质。 真空吸尘器包括主旋风单元（100），次旋风单元（120）和形成在主旋风单元和次旋风单元之间的通道分隔单元（131）。 吸入的空气主要在初级旋风单元（110）中进行过滤，二次在次级旋风单元（120）中过滤，从而提高清洗性能。 此外，灰尘容器（140）可拆卸地联接到主旋风单元（110）或次级旋风单元（120）。 因此，使用者可以通过从第一和第二旋风分离器分离灰尘容器140来容易地除去收集在贮尘容器140中的杂质。