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    • 71. 发明授权
    • Estimator for determining signal-to-interference ratio with reduced bias effect
    • 用减少偏置效应确定信号干扰比的估计器
    • US07254496B2
    • 2007-08-07
    • US11430645
    • 2006-05-09
    • Sung-Hyuk ShinAriela Zeira
    • Sung-Hyuk ShinAriela Zeira
    • H04B17/00
    • H04B1/1027H04B17/336
    • 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.
    • 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。
    • 72. 发明授权
    • Weighted open loop power control
    • 加权开环功率控制
    • US07120189B2
    • 2006-10-10
    • US11130591
    • 2005-05-16
    • Ariela ZeiraSung-Hyuk Shin
    • Ariela ZeiraSung-Hyuk Shin
    • H04B1/69
    • H04W52/10H04B2201/709709H04W52/24H04W52/242H04W52/246H04W52/248
    • 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.
    • 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。
    • 73. 发明授权
    • Method and apparatus for determining signal-to-interference ratio with reduced bias effect
    • 用减小的偏置效应确定信号干扰比的方法和装置
    • US06957175B2
    • 2005-10-18
    • US10686388
    • 2003-10-14
    • Sung-Hyuk ShinAriela Zeira
    • Sung-Hyuk ShinAriela Zeira
    • G06F19/00H04B20060101H04B1/10H04B7/005H04B7/26H04B15/00H04B17/00H04L29/02
    • H04B1/1027H04B17/336
    • A method and apparatus for estimating a signal-to-interference ratio (SIR) of baseband signals which are received and processed by a data demodulator to provide demodulated signals to a 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.
    • 一种用于估计由数据解调器接收和处理的基带信号的信号干扰比(SIR)的方法和装置,以向SIR估计器提供解调信号。 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。
    • 76. 发明授权
    • Weighted open loop power control transmitter
    • 加权开环电源控制变送器
    • US08767878B2
    • 2014-07-01
    • US13159068
    • 2011-06-13
    • Ariela ZeiraSung-Hyuk Shin
    • Ariela ZeiraSung-Hyuk Shin
    • H04L27/00H04L23/00
    • H04W52/10H04B2201/709709H04W52/24H04W52/242H04W52/246H04W52/248
    • A weighted open loop power control transmitter for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication 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.
    • 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 设备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。
    • 79. 发明授权
    • Weighted open loop power control
    • 加权开环电源控制
    • US06956889B2
    • 2005-10-18
    • US10755649
    • 2004-01-12
    • Ariela ZeiraSung-Hyuk Shin
    • Ariela ZeiraSung-Hyuk Shin
    • H04B1/707H04B7/005H04B1/69
    • H04W52/10H04B2201/709709H04W52/24H04W52/242H04W52/246H04W52/248
    • A transmission power level for a user equipment in a wireless time division duplex communication system using code division multiple access is determined. An interference level is measured. A pathloss estimate is determined. A long term average of pathloss estimates is determined. A first weighting factor, α, is determined by the determined pathloss estimate, producing a weighted pathloss estimate. (1−α) is multiplied to the determined long term average of pathloss estimates, producing a weighted long term pathloss estimate. A transmission power level of the user equipment is determined 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.
    • 确定使用码分多址的无线时分双工通信系统中的用户设备的发送功率电平。 测量干扰电平。 确定路径损耗估计。 确定路径损耗估计的长期平均值。 第一加权因子α由确定的路径损耗估计确定,产生加权路径损耗估计。 (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。 通过将加权的路径损耗估计与加权的长期路径损耗估计相加到所测量的干扰电平,将目标信号干扰比加到常数值来确定用户设备的发射功率电平。