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93 条记录 (耗时 0.041 秒)

    Multicast SDMA training polls
    11.
    发明申请
    Multicast SDMA training polls 审中-公开
    组播SDMA培训轮询

    公开(公告)号：US20050136910A1

    公开(公告)日：2005-06-23

    申请号：US10740648

    申请日：2003-12-18

    申请人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    发明人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    IPC分类号： H04L12/28 ,  H04Q7/20

    CPC分类号： H04W74/06

    摘要： When initiating SDMA training sequences, a base station may poll multiple mobile devices with the same multicast training poll, and the polled mobile stations may respond separately at different times based on an assigned delay period for each mobile station.

    摘要翻译： 当发起SDMA训练序列时，基站可以通过相同的组播训练轮询轮询多个移动设备，并且被轮询的移动站可以基于每个移动台的分配的延迟时间在不同时间单独响应。

    SDMA training operations
    12.
    发明申请
    SDMA training operations 审中-公开
    SDMA培训操作

    公开(公告)号：US20050147115A1

    公开(公告)日：2005-07-07

    申请号：US10745891

    申请日：2003-12-24

    申请人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    发明人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    IPC分类号： H04L12/28 ,  H04W16/28 ,  H04W48/02 ,  H04L12/403

    CPC分类号： H04W16/28 ,  H04W48/02

    摘要： During a training phase in a network using spatial division multiple access (SDMA) techniques, frame types that trigger network allocation vectors may be used in the training phase to prevent unwanted devices from transmitting during the training phase.

    摘要翻译： 在使用空分多址（SDMA）技术的网络的训练阶段期间，可以在训练阶段使用触发网络分配向量的帧类型，以在训练阶段期间防止不需要的设备发射。

    Transmission coordination for SDMA downlink communication
    14.
    发明申请
    Transmission coordination for SDMA downlink communication 审中-公开
    SDMA下行通信的传输协调

    公开(公告)号：US20050141420A1

    公开(公告)日：2005-06-30

    申请号：US10745871

    申请日：2003-12-24

    申请人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    发明人： Qinghua Li ,  Minnie Ho ,  Adrian Stephens

    IPC分类号： H04L12/28 ,  H04L1/00

    CPC分类号： H04L12/2854

    摘要： According to some embodiments, a technique is provided that coordinates transmission of frames to reduce collisions. Frames are coordinated according to, for example, operation type, frame length, and solicited response. A base station gains access to a wireless medium and transmits multiple coordinated frames to multiple communication units. The transmissions to the multiple communication units may be substantially simultaneous in that at least a portion of the different frames are transmitted at the same time. The different frames may be substantially back-end aligned where the maximum difference between the termination time instances of the frame transmissions is controlled to reduce collisions.

    摘要翻译： 根据一些实施例，提供了一种协调帧的传输以减少冲突的技术。 帧根据例如操作类型，帧长度和请求响应进行协调。 基站获得对无线介质的访问，并将多个协调帧发送到多个通信单元。 对多个通信单元的传输可以基本上同时进行，因为不同帧的至少一部分同时被传送。 在控制帧传输的终止时间实例之间的最大差异以减少冲突的情况下，不同的帧可以基本上是后端对齐的。

    PROVIDING CQI FEEDBACK TO A TRANSMITTER STATION IN A CLOSED-LOOP MIMO SYSTEM
    18.
    发明申请
    PROVIDING CQI FEEDBACK TO A TRANSMITTER STATION IN A CLOSED-LOOP MIMO SYSTEM 失效
    向闭环MIMO系统中的发射机站提供CQI反馈

    公开(公告)号：US20070253386A1

    公开(公告)日：2007-11-01

    申请号：US11617549

    申请日：2006-12-28

    申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

    发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

    IPC分类号： H04Q7/24

    CPC分类号： H04L1/0026 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0029

    摘要： Methods and apparatuses for reducing an amount of bandwidth required for feedback to a transmitter station in a closed-loop multiple-input multiple-output (MIMO) system are described herein. The methods may include initially measuring at a receiver station channel qualities associated with receiving signals from a transmitter station for a first and a second spatial channel, the transmitter and receiver stations employing a closed-loop MIMO system. The receiver station may then determine a first and a second channel quality indicator (CQI) based on the measured channel qualities and may then transmit to the transmitter station the first and the second CQI to directly and indirectly identify a first and a second modulation coding scheme (MCS) entry among a plurality of ordered MCS entries, respectively. The second MCS entry being one of a selected subset of lower ordered MCS entries relative to the first MCS entry. The transmitter station may selectively use the first and the second identified MCS to transmit signals to the receiver station over the first and the second spatial channel, respectively.

    摘要翻译： 这里描述了用于减少在闭环多输入多输出（MIMO）系统中向发射机站反馈所需的带宽量的方法和装置。 这些方法可以包括最初在接收机站处测量与从发射机站接收针对第一和第二空间信道的信号相关联的信道质量，所述发射机和接收机站采用闭环MIMO系统。 然后，接收站可以基于所测量的信道质量来确定第一和第二信道质量指示符（CQI），然后可以向发射机站发送第一和第二CQI以直接和间接地识别第一和第二调制编码方案 （MCS）条目分别在多个有序的MCS条目中。 第二MCS条目是相对于第一MCS条目的低阶MCS条目的选定子集之一。 发射机站可以选择性地使用第一和第二识别的MCS分别在第一和第二空间信道上向接收机站发送信号。

    Providing CQI feedback with common code rate to a transmitter station
    19.
    发明授权
    Providing CQI feedback with common code rate to a transmitter station 有权
    向发射台提供具有共同码率的CQI反馈

    公开(公告)号：US08488709B2

    公开(公告)日：2013-07-16

    申请号：US12871361

    申请日：2010-08-30

    申请人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

    发明人： Qinghua Li ,  Guangjie Li ,  Xintian E. Lin ,  Minnie Ho

    IPC分类号： H04B7/02 ,  H04B1/00

    CPC分类号： H04B7/0632 ,  H04B7/0641 ,  H04B7/0643 ,  H04L1/0025 ,  H04L1/0029

    摘要： Methods and apparatuses for providing CQI feedback with common code rate to a transmitter station are described herein. In one implementation, the methods may include a receiver station that is communicatively linked to a transmitter station via k spatial channels transmitting a first CQI to the transmitter station that indicates a modulation level for use by the transmitter station to transmit (i.e., to configure for transmission) a first of k streams of signals to be transmitted to the receiver station. The first CQI may further include a common code rate to be used by the transmitter station for transmitting the first of the k streams of signals as well as for transmitting the rest of the k−1 additional streams of signals to the receiver station. The receiver station may further transmit to the transmitter station k−1 additional CQIs to indicate to the transmitter station the k−1 modulation levels to be used by the transmitter station for transmitting the k−1 additional streams of signals to the receiver station.

    摘要翻译： 这里描述了用于向发射机站提供具有共同码率的CQI反馈的方法和装置。 在一个实施方式中，所述方法可以包括经由k个空间信道与发射机站通信地链接到发射机站的接收机站，所述空间信道向发射机站发射指示调制电平供发射机站使用以发射（即，配置为 传输）要发送到接收站的k个信号流中的第一个。 第一CQI还可以包括由发射机站用于发射信号的第一个信号流中的第一个信号以及将其余的k-1个附加信号流发射到接收机站的公共码率。 接收机站还可以向发射机站k-1发送额外的CQI，以向发射机台发射要由发射机站用于向接收机发射k-1个附加信号流的k-1个调制等级。

    Parallel wireless communication apparatus, method, and system
    20.
    发明授权
    Parallel wireless communication apparatus, method, and system 有权
    并行无线通信装置，方法和系统

    公开(公告)号：US08199723B2

    公开(公告)日：2012-06-12

    申请号：US10745123

    申请日：2003-12-23

    申请人： Qinghua Li ,  Minnie Ho ,  Adrian P. Stephens

    发明人： Qinghua Li ,  Minnie Ho ,  Adrian P. Stephens

    IPC分类号： H04W4/00 ,  H04J3/00

    CPC分类号： H04W74/0816 ,  H04B1/7103 ,  H04B1/715 ,  H04L5/0023 ,  H04L5/0055 ,  H04W74/0891 ,  H04W88/08

    摘要： An access point in a wireless network communicates with multiple mobile stations simultaneously using spatial-division multiple access. The access point transmits to the mobile stations frames that end at different times within a predefined window of time. When the predefined window in time is a short interframe space (SIFS) in an IEEE 802.11 compatible network, the access point will be done transmitting the frames in time to receive acknowledgements from the multiple mobile stations.

    摘要翻译： 无线网络中的接入点使用空分多址同时与多个移动站进行通信。 接入点向预定义的时间窗口内的移动台发送在不同时间结束的帧。 当IEEE 802.11兼容网络中的预定义时间窗口是短帧间间隔（SIFS）时，接入点将在时间上完成发送帧以从多个移动台接收确认。