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    Combined closed loop/open loop power control in a time division duplex communication system
    1.
    发明授权
    Combined closed loop/open loop power control in a time division duplex communication system 失效
    在时分双工通信系统中组合闭环/开环功率控制

    公开(公告)号：US06728292B2

    公开(公告)日：2004-04-27

    申请号：US10459035

    申请日：2003-06-11

    申请人： Ariela Zeira ,  Faith M. Ozluturk ,  Sung-Hyuk Shin

    发明人： Ariela Zeira ,  Faith M. Ozluturk ,  Sung-Hyuk Shin

    IPC分类号： H04B169

    CPC分类号： H04W52/265 ,  H04B2201/709709 ,  H04W52/08 ,  H04W52/10 ,  H04W52/24 ,  H04W52/241 ,  H04W52/242 ,  H04W52/248 ,  H04W52/54 ,  H04W52/60

    摘要： A spread spectrum time division duplex user equipment uses frames having time slots for communication. The user equipment receives power commands and a first communication having a transmission power level in a first time slot. A power level of the first communication is measured as received. A pathloss estimate is determined based on in part the measured received first communication power level and the first communication transmission power level. A transmission power level for the second communication in a second time slot form the user equipment is set based on in part the pathloss estimate weighted by a quality factor adjusted by the power command. The quality factor decreases as a number of time slots between the first and second time slots increases.

    摘要翻译： 扩频时分双工用户设备使用具有通信时隙的帧。 用户设备在第一时隙中接收功率命令和具有发射功率电平的第一通信。 第一通信的功率电平被测量为接收。 基于部分地测量的接收到的第一通信功率电平和第一通信发送功率电平来确定路径损耗估计。 基于由功率命令调整的质量因子加权的路径损耗估计，部分地设置用于在第二时隙中形成用户设备的第二通信的发送功率电平。 质量因子随着第一和第二时隙之间的时隙数量的增加而减小。

    Weighted open loop power control system
    3.
    发明授权
    Weighted open loop power control system 失效
    加权开环功率控制系统

    公开(公告)号：US07289550B2

    公开(公告)日：2007-10-30

    申请号：US11544275

    申请日：2006-10-06

    申请人： Ariela Zeira ,  Sung-Hyuk Shin

    发明人： Ariela Zeira ,  Sung-Hyuk Shin

    IPC分类号： H04B1/69

    CPC分类号： H04W52/10 ,  H04B2201/709709 ,  H04W52/24 ,  H04W52/242 ,  H04W52/246 ,  H04W52/248

    摘要： A weighted open loop power control system for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication comprises a receiver and a transmitter. The receiver includes a reference channel data generator, a spreading and training sequence insertion device, an amplifier, a summer, a modulator, and an antenna. The transmitter includes a demodulator configured to receive a transmitted signal from the receiver, a channel estimation device, a data estimation device, and a weighted open loop power controller. The weighted open loop power controller includes a power measurement device, a pathloss estimation device configured to receive an interpreted power level from the data estimation device and estimate the pathloss and update a long term average of the pathloss, a quality measurement device, and a transmit power calculation device for determining the transmitter's power level and to control the receiver's amplifier.

    摘要翻译： 一种用于使用具有用于通信的时隙的帧的扩频时分双工（TDD）技术来控制发射功率电平的加权开环功率控制系统包括接收机和发射机。 接收机包括参考信道数据发生器，扩展和训练序列插入装置，放大器，加法器，调制器和天线。 发射机包括解调器，被配置为从接收机接收发射信号，信道估计装置，数据估计装置和加权开环功率控制器。 所述加权开环功率控制器包括功率测量装置，路径损耗估计装置，被配置为从所述数据估计装置接收解释的功率电平，并且估计所述路径损耗并更新所述路径损耗的长期平均值，质量测量装置和发送 功率计算装置，用于确定发射机的功率电平并控制接收机的放大器。

    User equipment employing a time division duplex technique
    4.
    发明授权
    User equipment employing a time division duplex technique 失效

    公开(公告)号：US07120188B2

    公开(公告)日：2006-10-10

    申请号：US10435796

    申请日：2003-05-12

    申请人： Ariela Zeira ,  Sung-Hyuk Shin ,  Stephen G. Dick

    发明人： Ariela Zeira ,  Sung-Hyuk Shin ,  Stephen G. Dick

    IPC分类号： H04B1/69

    CPC分类号： H04W52/225 ,  H04W52/12 ,  H04W52/24

    摘要： Outer loop/weighted open loop power control apparatus controls transmission power levels in a spread spectrum time division duplex communication user equipment (UE). The user equipment receives a communication including an transmitted power level and measures its received power level. Based in part on the measured power level and the transmitted power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the user equipment is based on in part weighting the path loss estimate in response to the estimate's quality.

    Estimator for determining signal-to-interference ratio with reduced bias effect
    5.
    发明授权
    Estimator for determining signal-to-interference ratio with reduced bias effect 失效
    用减少偏置效应确定信号干扰比的估计器

    公开(公告)号：US07069190B2

    公开(公告)日：2006-06-27

    申请号：US11116090

    申请日：2005-04-27

    申请人： Sung-Hyuk Shin ,  Ariela Zeira

    发明人： Sung-Hyuk Shin ,  Ariela Zeira

    IPC分类号： H04B17/00

    CPC分类号： H04B1/1027 ,  H04B17/336

    摘要： A signal-to-interference ratio (SIR) estimator for estimating a SIR of baseband signals which are received and processed by a data demodulator to provide demodulated signals to the SIR estimator. The SIR estimator receives the demodulated symbols from the data demodulator and estimates the average signal power of the demodulated symbols as a function of a median based average power value md and a mean based average power value me of the demodulated symbols for each quadrant of a quadrature phase shift keying (QPSK) constellation. The function is used to determine a minimum value m between md and me. The SIR estimator estimates the average effective interference power of the demodulated symbols and calculates the SIR by dividing the estimated average signal power of the demodulated symbols by the estimated average effective interference power of the demodulated symbols. The SIR estimator reduces bias effects on SIR estimation.

    摘要翻译： 用于估计由数据解调器接收和处理的基带信号的SIR以向SIR估计器提供解调信号的信号干扰比（SIR）估计器。 SIR估计器从数据解调器接收解调符号，并将解调符号的平均信号功率估计为基于中值的平均功率值m N d和基于平均值的平均功率值m 正交相移键控（QPSK）星座的每个象限的解调符号的大小。 该函数用于确定m d> and and e a。。。。。。。。。。。。。。。。。。。。。。。。。 SIR估计器估计解调符号的平均有效干扰功率，并且通过将解调符号的估计平均信号功率除以所解调的符号的估计的平均有效干扰功率来计算SIR。 SIR估计器减少对SIR估计的偏差影响。

    Weighted open loop power control
    6.
    发明申请
    Weighted open loop power control 有权
    加权开环功率控制

    公开(公告)号：US20050220176A1

    公开(公告)日：2005-10-06

    申请号：US11130591

    申请日：2005-05-16

    申请人： Ariela Zeira ,  Sung-Hyuk Shin

    发明人： Ariela Zeira ,  Sung-Hyuk Shin

    IPC分类号： H04B1/707 ,  H04B7/005

    CPC分类号： H04W52/10 ,  H04B2201/709709 ,  H04W52/24 ,  H04W52/242 ,  H04W52/246 ,  H04W52/248

    摘要： A base station transmits a reference signal. The base station receives a communication. The received communication has a transmission power level set by measuring an interference level; determining the pathloss estimate using the reference signal; determining a long term average of pathloss estimates; multiplying a first weighting factor, α, by the determined pathloss estimate, producing a weighted pathloss estimate; multiplying (1−α) to the determined long term average of pathloss estimates, producing a weighted long term pathloss estimate; and determining the transmission power level by adding the weighted pathloss estimate to the weighted long term pathloss estimate to the measured interference level to a target signal to interference ratio to a constant value.

    摘要翻译： 基站发送参考信号。 基站接收通信。 所接收的通信具有通过测量干扰电平而设置的发送功率电平; 使用参考信号确定路径损耗估计; 确定路径损失估计的长期平均值; 将第一加权因子α乘以所确定的路径损耗估计，产生加权路径损耗估计; 将（1-α）乘以确定的路径损耗估计的长期平均值，产生加权的长期路径损耗估计; 以及通过将加权的路径损耗估计加权到所测量的干扰水平，将加权的路径损耗估计与目标信号干扰比相加到常数值来确定发射功率电平。

    Outer loop transmit power control using channel-adaptive processing
    7.
    发明授权
    Outer loop transmit power control using channel-adaptive processing 失效
    外环使用信道自适应处理发送功率控制

    公开(公告)号：US06622024B2

    公开(公告)日：2003-09-16

    申请号：US10036118

    申请日：2001-12-26

    申请人： Chang-Soo Koo ,  Ariela Zeira ,  Donald Grieco ,  Sung-Hyuk Shin

    发明人： Chang-Soo Koo ,  Ariela Zeira ,  Donald Grieco ,  Sung-Hyuk Shin

    IPC分类号： H04B700

    CPC分类号： H04W52/228 ,  H04W52/08 ,  H04W52/12 ,  H04W52/143 ,  H04W52/146 ,  H04W52/225 ,  H04W52/24

    摘要： The present invention is a system and method which controls outer loop transmit power for transmission power of an uplink/downlink communication in a spread spectrum time division communication. The system receives a communication from a base station and determines an error rate on the received communication. The system then distinguishes between static and dynamic channels, produces a static adjustment value, and characterizes the dynamic channels to generate a dynamic adjustment value. The target power level is then adjusted by the static and dynamic adjustment values, setting the transmission power level.

    摘要翻译： 本发明是一种在扩频时分通信中控制上行链路/下行链路通信的发送功率的外环发送功率的系统和方法。 系统接收来自基站的通信，并确定接收到的通信的错误率。 然后，系统区分静态和动态通道，产生静态调整值，并表征动态通道以产生动态调整值。 然后通过静态和动态调整值调整目标功率电平，设置发射功率电平。

    Outer loop/weighted open loop power control in a time division duplex communication system
    8.
    发明授权
    Outer loop/weighted open loop power control in a time division duplex communication system 失效
    时分双工通信系统中的外环/加权开环功率控制

    公开(公告)号：US06603797B1

    公开(公告)日：2003-08-05

    申请号：US09533423

    申请日：2000-03-22

    申请人： Ariela Zeira ,  Sung-Hyuk Shin ,  Stephen G. Dick

    发明人： Ariela Zeira ,  Sung-Hyuk Shin ,  Stephen G. Dick

    IPC分类号： H04B169

    CPC分类号： H04W52/225 ,  H04W52/12 ,  H04W52/24

    摘要： Outer loop/weighted open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. A first communication station transmits a communication to a second communication station. The second station receives the communication and measures its received power level. Based on in part the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the second station to the first station is based on in part weighting the path loss estimate in response to the estimate's quality.

    摘要翻译： 外环/加权开环功率控制控制扩频时分双工通信站中的发射功率电平。 第一通信站将通信发送到第二通信站。 第二站接收通信并测量其接收到的功率电平。 基于接收到的通信的功率电平和通信的发送功率电平，确定路径损耗估计。 路径损耗估计的质量也被确定。 用于从第二站到第一站的通信的发射功率电平基于对估计的质量的响应部分地对路径损耗估计进行加权。