公开(公告)号：US06600773B2

公开(公告)日：2003-07-29

申请号：US10081809

申请日：2002-02-22

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

发明人： Ariela Zeira ,  Sung-Hyuk Shin ,  Steven 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 method controls transmission power levels in a spread spectrum time division duplex communication base station. The base station receives a communication including a 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 base station is based in part on weighting the path loss estimate in response to the estimate's quality.

公开(公告)号：US06600772B1

公开(公告)日：2003-07-29

申请号：US09531359

申请日：2000-03-21

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

发明人： Ariela Zeira ,  Fiath 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： Combined closed loop/open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. The first station transmits power commands based on in part a reception quality of the received communications. The first station transmits a first communication having transmission power commands based on in part a reception quality of the received communications. The first station transmits a first communication having a transmission power level in a first time slot. The second station received the first communication and the power commands. A power level of the first communication as received is measured. A path loss estimate is determined based on in part the measured received first communication power level and the first communication transmission power level. The second station transmits a first communication to the first station in a first time slot. The second communication transmission power level is set based on in part the path loss estimate weighted by a factor and power commands. The factor is a function of a time separation of the first and second time slots.

摘要翻译： 组合闭环/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。 第一站部分地基于所接收的通信的接收质量来发送功率命令。 第一站基于部分接收到的通信的接收质量来发送具有发送功率命令的第一通信。 第一站在第一时隙中发送具有发送功率电平的第一通信。 第二站接收到第一个通信和电源命令。 测量接收到的第一通信的功率电平。 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。 第二站在第一时隙中向第一站发送第一通信。 第二通信发送功率电平部分地基于由因子和功率命令加权的路径损耗估计来设置。 该因子是第一和第二时隙的时间间隔的函数。

公开(公告)号：US06597723B1

公开(公告)日：2003-07-22

申请号：US09532349

申请日：2000-03-21

申请人： Ariela Zeira ,  Sung-Hyuk Shin

发明人： Ariela Zeira ,  Sung-Hyuk Shin

IPC分类号： H04B169

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

摘要： The invention 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： 本发明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。 基于部分接收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传输功率电平部分地基于对估计的质量的路径损耗估计进行加权。

公开(公告)号：US07961773B2

公开(公告)日：2011-06-14

申请号：US12464164

申请日：2009-05-12

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 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.

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。

公开(公告)号：US07532659B2

公开(公告)日：2009-05-12

申请号：US11978298

申请日：2007-10-29

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 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.

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。

公开(公告)号：US20070030882A1

公开(公告)日：2007-02-08

申请号：US11545665

申请日：2006-10-10

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

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

IPC分类号： H04B1/00

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

摘要： A user equipment (UE) for controlling transmission power levels in a system employing a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication comprises a measuring device configured to receive, during a first time slot, a communication including a power level and measure the power level of the received communication and an interference power level. A pathloss estimation device determines a pathloss estimate and a long term pathloss estimate, based in part on the measured power level and the received power level. A quality measurement device determines a first quality factor, α, and a second quality factor, 1−α, of the pathloss estimate based in part on a number of timeslots, D, between the first and a second timeslot. A transmit power calculation device sets a transmission power level for transmission during the second timeslot.

摘要翻译： 一种用于在采用具有用于通信的时隙的帧的扩频时分双工（TDD）技术的系统中控制传输功率电平的用户设备（UE），包括测量设​​备，被配置为在第一时隙期间接收包括功率 并测量接收到的通信的功率电平和干扰功率电平。 路径损耗估计装置部分地基于所测量的功率电平和接收功率电平来确定路径损耗估计和长期路径损耗估计。 质量测量装置部分地基于第一和第二时隙之间的时隙数D来确定路径损耗估计的第一品质因子α和第二品质因子1-α。 发送功率计算装置在第二时隙期间设定用于发送的发送功率电平。

公开(公告)号：US20070025423A1

公开(公告)日：2007-02-01

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： H04B1/707 ,  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。

公开(公告)号：US07075969B2

公开(公告)日：2006-07-11

申请号：US11136239

申请日：2005-05-24

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

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

IPC分类号： H04B1/69 ,  H04B1/707

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： At a first communication station, communications from a second communication station are received. The first station transmits power commands based on in part a reception quality of the received communications. From the first communication station, a first communication having a transmission power level in a first time slot is transmitted. At the second communication station, the first communication and the power commands are received. A power level of the first communication as received is measured. 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 is set for a second communication in a second time slot from the second station to the first station based on in part the pathloss estimate weighted by a quality factor and the power commands.

摘要翻译： 在第一通信站处，接收来自第二通信站的通信。 第一站部分地基于所接收的通信的接收质量来发送功率命令。 从第一通信站发送具有第一时隙中的发送功率电平的第一通信。 在第二通信站，接收第一通信和电源命令。 测量接收到的第一通信的功率电平。 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。 基于部分由质量因子和功率命令加权的路径损耗估计，从第二站到第一站在第二时隙中为第二通信设置发送功率电平。

公开(公告)号：US20050187728A1

公开(公告)日：2005-08-25

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： G06F19/00 ,  H04B20060101 ,  H04B1/10 ,  H04B7/005 ,  H04B7/26 ,  H04B15/00 ,  H04B17/00 ,  H04L29/02

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。}

公开(公告)号：US06748235B1

公开(公告)日：2004-06-08

申请号：US10325772

申请日：2002-12-19

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

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

IPC分类号： H04Q720

CPC分类号： H04W52/228 ,  H04W52/08 ,  H04W52/24 ,  H04W52/287 ,  H04W52/44

摘要： A transmitting station performs closed loop power control prior to a transmission pause. A closed loop transmission power level prior to the pause is determined. A reference signal is received and a received power level of the reference signal prior to and during the transmission pause is determined. The measured reference signal received power levels are compared to a transmit power level of the reference signals to produce a pathloss estimate of the reference signal prior to and during the transmission pause. A new transmit power level is determined by adjusting the closed loop transmission power level by a change between the prior to and during pathloss estimates. A transmission power level of the transmitting station is set to the determined new transmit power level. A communication is transmitted at the set transmission power level.

摘要翻译： 发送台在发送暂停之前执行闭环功率控制。 确定暂停之前的闭环发射功率电平。 接收参考信号，并且确定在传输暂停之前和期间的参考信号的接收功率电平。 将测量的参考信号接收功率电平与参考信号的发射功率电平进行比较，以在传输暂停之前和期间产生参考信号的路径损耗估计。 通过在路径损耗估计之前和之后的变化来调整闭环发射功率电平来确定新的发射功率电平。 将发送站的发送功率电平设定为所确定的新的发送功率电平。 以设定的发送功率电平发送通信。