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121 条记录 (耗时 0.037 秒)

    Estimation of thermal noise and rise-over-thermal in a wireless communication system
    93.
    发明授权
    Estimation of thermal noise and rise-over-thermal in a wireless communication system 有权
    无线通信系统中热噪声和上升热的估计

    公开(公告)号：US08254279B2

    公开(公告)日：2012-08-28

    申请号：US12107013

    申请日：2008-04-21

    申请人： Charles E. Wheatley, III ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

    发明人： Charles E. Wheatley, III ,  Avneesh Agrawal ,  Danlu Zhang ,  Sharad Deepak Sambhwani ,  Lu Yuan ,  Mehraban Iraninejad

    IPC分类号： H04J3/14 ,  H04W4/00

    CPC分类号： H04B17/382 ,  H04B17/345

    摘要： Techniques for estimating thermal noise and rise-over-thermal (RoT) in a communication system are described. In an aspect, thermal noise in a sideband may be measured and used to estimate thermal noise in a signal band. In one design, received power in the sideband may be measured, e.g., by computing total power of FFT transform coefficients within the sideband. Thermal noise may be estimated based on (e.g., by filtering) the measured received power in the sideband. Received power in the signal band may also be measured. Total received power may be estimated based on (e.g., by filtering) the measured received power in the signal band. RoT may then be estimated based on the estimated thermal noise and the estimated total received power. The estimated RoT may be used to estimate an available load for a cell, which may be used to admit and/or schedule users in the cell.

    摘要翻译： 描述了用于估计通信系统中的热噪声和上升热（RoT）的技术。 在一方面，边带中的热噪声可以被测量并用于估计信号频带中的热噪声。 在一种设计中，边带中的接收功率可以例如通过计算边带内的FFT变换系数的总功率来测量。 可以基于（例如，通过滤波）边带中的测量的接收功率来估计热噪声。 也可以测量信号频带中的接收功率。 可以基于（例如，通过滤波）在信号频带中测量的接收功率来估计总接收功率。 然后可以基于估计的热噪声和估计的总接收功率来估计RoT。 估计的RoT可以用于估计小区的可用负载，其可以用于接纳和/或调度小区中的用户。

    WIRELESS POWER DISTRIBUTION AMONG A PLURALITY OF RECEIVERS
    95.
    发明申请
    WIRELESS POWER DISTRIBUTION AMONG A PLURALITY OF RECEIVERS 有权
    无线电接收机的功率分配

    公开(公告)号：US20110260682A1

    公开(公告)日：2011-10-27

    申请号：US12951269

    申请日：2010-11-22

    申请人： Zhen Ning Low ,  Charles E. Wheatley, III ,  William H. Von Novak

    发明人： Zhen Ning Low ,  Charles E. Wheatley, III ,  William H. Von Novak

    IPC分类号： H02J7/00

    CPC分类号： H03H7/40 ,  H02J5/005 ,  H02J7/0027 ,  H02J7/025 ,  H02J50/12 ,  H02J50/20 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0081

    摘要： Exemplary embodiments are directed to power distribution among a plurality of receivers. A method may include requesting at least one receiver of a plurality of receivers within a charging region of a transmitter to modify an associated load resistance to achieve a desired power distribution among the plurality of receivers. The method may further include requesting each receiver of the plurality of receivers to modify an associated load resistance to achieve a desired total impedance as seen by the transmitter while maintaining the desired power distribution among the plurality of receivers.

    摘要翻译： 示例性实施例涉及多个接收器之间的功率分配。 方法可以包括请求发射机的充电区域内的多个接收机的至少一个接收机来修改相关联的负载电阻以在多个接收机之间实现期望的功率分配。 该方法还可以包括请求多个接收机中的每个接收机修改相关联的负载电阻以实现由发射机看到的期望的总阻抗，同时保持多个接收机之间的所需功率分配。

    Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system
    100.
    发明授权
    Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system 有权
    用于在CDMA通信系统中对来自多个基站的传输进行时间调整的方法和装置

    公开(公告)号：US07796549B2

    公开(公告)日：2010-09-14

    申请号：US12019596

    申请日：2008-01-24

    申请人： Francesco Grilli ,  Charles E. Wheatley, III ,  Serge D. Willenegger ,  Parvathanathan Subrahmanya

    发明人： Francesco Grilli ,  Charles E. Wheatley, III ,  Serge D. Willenegger ,  Parvathanathan Subrahmanya

    IPC分类号： H04W4/00

    CPC分类号： H04W56/002 ,  H04B7/2668 ,  H04B2201/70702 ,  H04W56/001 ,  H04W56/0015 ,  H04W56/0045 ,  H04W92/20

    摘要： Schemes to time-align transmissions from multiple base stations to a terminal. To achieve time-alignment, differences between the arrival times of transmissions from the base stations, as observed at the terminal, are determined and provided to the system and used to adjust the timing at the base stations such that terminal-specific radio frames arrive at the terminal within a particular time window. In one scheme, a time difference between two base stations is partitioned into a frame-level time difference and a chip-level time difference. Whenever requested to perform and report time difference measurements, the terminal measures the chip-level timing for each candidate base station relative to a reference base station. Additionally, the terminal also measures the frame-level timing and includes this information in the time difference measurement only if required. Otherwise, the terminal sets the frame-level part to a predetermined value (e.g., zero).

    摘要翻译： 将来自多个基站的传输时间对齐到终端的方案。 为了实现时间对准，确定在终端观察到的来自基站的传输的到达时间之间的差异，并将其提供给系统，并用于调整基站处的定时，使得终端专用无线帧到达 终端在特定的时间窗口内。 在一个方案中，两个基站之间的时差被划分为帧级时间差和码片级时间差。 无论何时请求执行和报告时差测量，终端测量每个候选基站相对于参考基站的芯片级定时。 此外，终端还测量帧级定时，并且仅在需要时在时差测量中包括该信息。 否则，终端将帧级部分设置为预定值（例如，零）。