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134 条记录 (耗时 0.031 秒)

    MITIGATION OF WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) TO WTRU INTERFERENCE USING MULTIPLE ANTENNAS OR BEAMS
    82.
    发明申请
    MITIGATION OF WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) TO WTRU INTERFERENCE USING MULTIPLE ANTENNAS OR BEAMS 有权
    无线传输/接收单元（WTRU）使用多个天线或端口对WTRU干扰进行减轻

    公开(公告)号：US20100081396A1

    公开(公告)日：2010-04-01

    申请号：US12632420

    申请日：2009-12-07

    申请人： Eldad Zeira

    发明人： Eldad Zeira

    IPC分类号： H04B1/40

    CPC分类号： H04B7/0617 ,  H04B7/0408 ,  H04B7/0695 ,  H04B7/088 ,  Y02D70/444

    摘要： Multiple antenna elements of a WTRU are used to form an adaptive antenna beam pattern for receiving signals in the downlink direction. The WTRU utilizes the formed antenna beam to form a transmission antenna beam for transmitting signals in the uplink direction. In an alternate embodiment, the multiple antenna elements are used to form a plurality of fixed, predetermined antenna beams. The WTRU then selects and switches to the one of the predetermined beams that yields the best downlink reception signals. The WTRU utilizes the selected beam pattern to transmit signals in the uplink direction. In an alternate embodiment, the WTRU receives spectral arrangement information and utilizing this information to avoid transmitting in the direction of spectrally adjacent WRTUs.

    摘要翻译： WTRU的多个天线元件用于形成用于在下行链路方向上接收信号的自适应天线波束模式。 WTRU利用形成的天线波束形成用于在上行链路方向上传输信号的发射天线波束。 在替代实施例中，多个天线元件用于形成多个固定的预定天线波束。 然后，WTRU选择并切换到产生最佳下行链路接收信号的预定波束中的一个。 WTRU利用所选择的波束模式在上行链路方向上发送信号。 在替代实施例中，WTRU接收频谱布置信息并且利用该信息来避免在频谱相邻的WRTU的方向上发射。

    Dynamic link adaption for time division duplex (TDD)
    85.
    发明授权
    Dynamic link adaption for time division duplex (TDD) 失效
    时分双工（TDD）的动态链路自适应

    公开(公告)号：US07483494B2

    公开(公告)日：2009-01-27

    申请号：US11313413

    申请日：2005-12-21

    申请人： Eldad Zeira ,  Stephen E. Terry ,  Ariela Zeira

    发明人： Eldad Zeira ,  Stephen E. Terry ,  Ariela Zeira

    IPC分类号： H04L27/00

    CPC分类号： H04W52/367 ,  H04W52/54 ,  H04W72/042 ,  H04W72/085

    摘要： A UE system implements dynamic link adaptation by adding or changing control information to notify a receiver which timeslots and codes are currently active and which timeslots should be avoided. The UE provides synchronization such that the receiver knows which timeslots and codes the UE has used to map the coded composite transport channel onto physical channels. The UE attempts to avoid the timeslots which are experiencing transmission difficulties, while attempting to utilize the timeslots which are not experiencing transmission problems.

    摘要翻译： UE系统通过添加或改变控制信息来实现动态链路自适应，以通知接收机哪些时隙和代码当前是活动的，哪些时隙应该被避免。 UE提供同步，使得接收机知道UE已经使用哪个时隙和码来将经编码的复合传输信道映射到物理信道上。 在尝试利用未经历传输问题的时隙的情况下，UE尝试避免正在经历传输困难的时隙。

    WIRELESS COMMUNICATION METHOD AND SYSTEM FOR CONTROLLING DATA BIT RATES TO MAINTAIN THE QUALITY OF RADIO LINKS
    86.
    发明申请
    WIRELESS COMMUNICATION METHOD AND SYSTEM FOR CONTROLLING DATA BIT RATES TO MAINTAIN THE QUALITY OF RADIO LINKS 有权
    用于控制数据比特率以维护无线链路质量的无线通信方法和系统

    公开(公告)号：US20080273502A1

    公开(公告)日：2008-11-06

    申请号：US12170640

    申请日：2008-07-10

    申请人： Eldad Zeira ,  Guodong Zhang ,  Stephen E. Terry ,  James M. Miller

    发明人： Eldad Zeira ,  Guodong Zhang ,  Stephen E. Terry ,  James M. Miller

    IPC分类号： H04Q7/00 ,  H04J3/00

    CPC分类号： H04W28/0236 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/203 ,  H04L47/22 ,  H04W24/02 ,  H04W28/10 ,  H04W28/22 ,  H04W36/0011

    摘要： A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network controller (RNC) and at least one wireless transmit/receive unit (WTRU). The RL is established between the RNC and the WTRU. The RNC establishes a guaranteed data bit rate, a maximum data bit rate and a current data bit rate associated with the RL. When the RNC senses an event which indicates that the quality of the RL has substantially deteriorated, the RNC reduces the value of the current data bit rate. Then, in a recovery process, if a similar event does not occur during an established waiting period, the RNC restores the current data bit rate back to the maximum data bit rate.

    摘要翻译： 一种用于控制无线电链路（RL）的当前数据比特率以保持RL的质量的无线通信方法和系统。 该系统包括核心网络（CN），无线电网络控制器（RNC）和至少一个无线发射/接收单元（WTRU）。 在RNC和WTRU之间建立RL。 RNC建立与RL相关联的保证数据比特率，最大数据比特率和当前数据比特率。 当RNC感测到指示RL的质量已经显着恶化的事件时，RNC减小当前数据比特率的值。 然后，在恢复处理中，如果在建立的等待期间没有发生类似的事件，则RNC将当前数据比特率恢复到最大数据比特率。

    Method of using a radio network controller for controlling data bit rates to maintain the quality of radio links
    88.
    发明授权
    Method of using a radio network controller for controlling data bit rates to maintain the quality of radio links 有权
    使用无线网络控制器来控制数据比特率以维持无线电链路质量的方法

    公开(公告)号：US07408902B2

    公开(公告)日：2008-08-05

    申请号：US10775629

    申请日：2004-02-10

    申请人： Eldad Zeira ,  Guodong Zhang ,  Stephen E. Terry ,  James M. Miller

    发明人： Eldad Zeira ,  Guodong Zhang ,  Stephen E. Terry ,  James M. Miller

    IPC分类号： H04L12/28 ,  H04J3/16 ,  H04B7/216 ,  H04B17/02 ,  H04Q7/20 ,  H04Q7/00 ,  G01R31/08

    CPC分类号： H04W28/0236 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/203 ,  H04L47/22 ,  H04W24/02 ,  H04W28/10 ,  H04W28/22 ,  H04W36/0011

    摘要： A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network controller (RNC) and at least one wireless transmit/receive unit (WTRU). The RL is established between the RNC and the WTRU. The RNC establishes a guaranteed data bit rate, a maximum data bit rate and a current data bit rate associated with the RL. When the RNC senses an event which indicates that the quality of the RL has substantially deteriorated, the RNC reduces the value of the current data bit rate. Then, in a recovery process, if a similar event does not occur during an established waiting period, the RNC restores the current data bit rate back to the maximum data bit rate.

    摘要翻译： 一种用于控制无线电链路（RL）的当前数据比特率以保持RL的质量的无线通信方法和系统。 该系统包括核心网络（CN），无线电网络控制器（RNC）和至少一个无线发射/接收单元（WTRU）。 在RNC和WTRU之间建立RL。 RNC建立与RL相关联的保证数据比特率，最大数据比特率和当前数据比特率。 当RNC感测到指示RL的质量已经显着恶化的事件时，RNC减小当前数据比特率的值。 然后，在恢复处理中，如果在建立的等待期间没有发生类似的事件，则RNC将当前数据比特率恢复到最大数据比特率。

    METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
    89.
    发明申请
    METHOD AND APPARATUS FOR CHANNEL ESTIMATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM 审中-公开
    正交频分复用系统中信道估计的方法与装置

    公开(公告)号：US20070206689A1

    公开(公告)日：2007-09-06

    申请号：US11680959

    申请日：2007-03-01

    申请人： Chang-Soo Koo ,  Eldad Zeira ,  I-Tai Lu ,  Robert Olesen ,  Kun-Ju Tsai

    发明人： Chang-Soo Koo ,  Eldad Zeira ,  I-Tai Lu ,  Robert Olesen ,  Kun-Ju Tsai

    IPC分类号： H04K1/10

    CPC分类号： H04L25/0216 ,  H04L25/0208 ,  H04L25/0212 ,  H04L25/0214 ,  H04L25/022 ,  H04L25/0232 ,  H04L27/2647

    摘要： In an orthogonal frequency division multiplexing (OFDM) system, a frequency domain channel estimate for non-nullified subcarriers is converted to a time domain channel estimate. The number of taps L of a channel model is determined based on the time domain channel estimate. An improved time domain channel estimate is obtained by computing L tap coefficients of the channel model from the frequency domain channel estimate. An improved frequency domain channel estimate is obtained by performing a Fourier transform on the improved time domain channel estimate. Alternatively, a time domain truncation method may be performed selectively only if the signal-to-noise ratio (SNR) is below a threshold. Alternatively, a frequency domain channel estimate for pilot subcarriers are converted to a time domain channel estimate and an improved frequency domain channel estimate is obtained based on the number of pilot subcarriers and a delay spread.

    摘要翻译： 在正交频分复用（OFDM）系统中，对于非无效子载波的频域信道估计被转换为时域信道估计。 基于时域信道估计来确定信道模型的抽头数L。 通过从频域信道估计计算信道模型的L抽头系数来获得改进的时域信道估计。 通过对改进的时域信道估计执行傅里叶变换来获得改进的频域信道估计。 或者，只有当信噪比（SNR）低于阈值时，才可以选择性地执行时域截断方法。 或者，将导频子载波的频域信道估计转换为时域信道估计，并且基于导频子载波的数量和延迟扩展获得改进的频域信道估计。

    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS
    90.
    发明申请
    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS 有权
    保护高速公路的方法和装置

    公开(公告)号：US20070076752A1

    公开(公告)日：2007-04-05

    申请号：US11531006

    申请日：2006-09-12

    申请人： Eldad Zeira ,  Stephen Terry ,  Joseph Levy ,  Sudheer Grandhi ,  Arty Chandra

    发明人： Eldad Zeira ,  Stephen Terry ,  Joseph Levy ,  Sudheer Grandhi ,  Arty Chandra

    IPC分类号： H04J3/16

    CPC分类号： H04L1/0079 ,  H04W16/14 ,  H04W74/08 ,  H04W92/02

    摘要： A method and apparatus for protecting high throughput (HT) stations (STAs) are disclosed. In one embodiment, a physical layer (PHY) legacy preamble transmitted by one STA is decoded by another STA that does not use a legacy preamble. In another embodiment, one STA is identified by another STA by using bits in the preamble of a packet to indicate which PHY type will be used in the remaining portion of the packet. In yet another embodiment, one STA sends ready-to-send (RTS)/clear-to-send (CTS) or CTS-to-self messages for reserving a medium in the presence of another STA of a different type than the one STA. In yet another embodiment, an access point (AP) transmits a beacon or an association message including a capability information element (IE) that indicates operation or support for a legacy preamble, HT STA preambles and a medium access control (MAC) packet transmission with HT protection mechanisms.

    摘要翻译： 公开了一种用于保护高吞吐量（HT）站（STA）的方法和装置。 在一个实施例中，由一个STA发送的物理层（PHY）传统前导码由不使用传统前同步码的另一STA解码。 在另一个实施例中，一个STA由另一STA通过使用分组的前导码中的比特来标识，以指示在分组的剩余部分中将使用哪种PHY类型。 在另一个实施例中，一个STA发送即时发送（RTS）/清除发送（CTS）或CTS到自身消息，用于在存在与一个STA不同类型的另一STA的情况下保留介质 。 在另一个实施例中，接入点（AP）发送信标或关联消息，该信标或关联消息包括指示对传统前导码，HT STA前导码和介质访问控制（MAC）分组传输的操作或支持的能力信息元素（IE） HT保护机制。