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1. 发明授权

US06600792B2 Predistortion technique for high power amplifiers 失效
标题翻译：大功率放大器的预失真技术
公开(公告)号：US06600792B2
公开(公告)日：2003-07-29
申请号：US09105532
申请日：1998-06-26
申请人： Franklin P. Antonio , Walid Hamdy , Nitin Kasturi , Christopher C. Riddle , David P. Oses
发明人： Franklin P. Antonio , Walid Hamdy , Nitin Kasturi , Christopher C. Riddle , David P. Oses
IPC分类号： H04L2549
CPC分类号： H03F1/3247 , H03F1/3241 , H03F2201/3233
摘要： A predistortion technique for high power amplifiers includes an adaptive predistortion algorithm that operates independently of data samples to write a set of complex gain values, or predistortion parameters, to a lookup table. The algorithm may be processor-driven. The gain values are taken from the lookup table and multiplied by a complex digital baseband waveform. The gain values may first be subjected to interpolation. The downconverted output of the amplifier is measured to gauge the efficacy of the predistortion. Based on the effect of the predistortion upon the ratio of in-band power to out-of-band power, decisions are made on the set of predistortion parameters for the next iteration of the algorithm. The algorithm runs continuously, perturbing parameters and adapting the predistortion functions accordingly in an effort to continually reflect instantaneous amplitude-modulation and phase-modulation relationships that may change over time with temperature variation or component aging.
摘要翻译：用于高功率放大器的预失真技术包括自适应预失真算法，其独立于数据样本操作以将一组复增益值或预失真参数写入查找表。算法可能是处理器驱动的。增益值取自查表，并乘以复数数字基带波形。增益值可以首先进行插值。测量放大器的下变频输出以测量预失真的功效。基于预失真对带内功率与带外功率之比的影响，决定了该算法下一次迭代的预失真参数集。该算法连续运行，扰动参数并相应地调整预失真函数，以努力连续反映随着温度变化或分量老化而随时间变化的瞬时幅度调制和相位调制关系。

2. 发明授权

US06519456B2 Softer handoff in a base station employing virtual channel elements 有权
标题翻译：在采用虚拟通道元件的基站中较软切换
公开(公告)号：US06519456B2
公开(公告)日：2003-02-11
申请号：US09172489
申请日：1998-10-14
申请人： Franklin P. Antonio , Houtan Dehesh , Walid Hamdy , Kuo-Chun Lee , Jan K. Wegrzyn
发明人： Franklin P. Antonio , Houtan Dehesh , Walid Hamdy , Kuo-Chun Lee , Jan K. Wegrzyn
IPC分类号： H04Q722
CPC分类号： H04W36/06 , H04W36/18 , H04W52/40
摘要： A base station architecture splits modem functionality into modulator and demodulator entities, each configured to handle multiple telephone calls. A high-speed digital bus with associated routing elements connects multiple-channel (i.e., multiuser) modulator and demodulator elements. The modulator and demodulator elements may be physically separated, residing on different cards, and even different shelves, within the base station. During softer handoff between forward channels of the base station, multiple modulator elements use the address of a demodulator element in communication with a mobile subscriber unit. A base station controller broadcasts forward-link frames to all modulator elements. The multiple modulator elements simultaneously receive forward-link frames from the base station controller. The multiple modulator elements filter these forward-link frames and accept only those to be transmitted to the particular mobile subscriber unit in communication with the demodulator element.
摘要翻译：基站架构将调制解调器功能分解成调制器和解调器实体，每个被配置为处理多个电话呼叫。具有相关联的路由元件的高速数字总线连接多通道（即，多用户）调制器和解调器元件。调制器和解调器元件可以在基站内物理上分离，驻留在不同的卡上，甚至不同的货架上。在基站的前向信道之间的较软切换期间，多个调制器元件使用与移动用户单元通信的解调器元件的地址。基站控制器向所有调制器元件广播前向链路帧。多个调制器元件同时从基站控制器接收前向链路帧。多个调制器元件对这些前向链路帧进行过滤，并且仅接收要发射到与解调器元件通信的特定移动用户单元的那些。

3. 发明授权

US06603745B1 Method and apparatus for reverse link overload detection 有权
标题翻译：用于反向链路过载检测的方法和装置
公开(公告)号：US06603745B1
公开(公告)日：2003-08-05
申请号：US09181345
申请日：1998-10-28
申请人： Franklin P. Antonio , Walid Hamdy
发明人： Franklin P. Antonio , Walid Hamdy
IPC分类号： H04B7185
CPC分类号： H04W28/26 , H04B17/382 , H04W52/343
摘要： A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to an overload threshold value. If the variance exceeds the overload threshold value, for some period of time, the system is declaraed to be operating at a potentially unstable point. In this state, future connection originations are denied.
摘要翻译：检测器用于对接收信号的一组功率测量进行采样。接收信号可以包括来自远程用户的一个或多个信号以及干扰。还确定了功率测量集的变化。将方差与过载阈值进行比较。如果方差超过过载阈值，在一段时间内，系统将被声明在潜在的不稳定点运行。在这种状态下，将来的连接发起被拒绝。

4. 发明授权

US07440426B2 Method and apparatus for reverse link overload detection 失效
标题翻译：用于反向链路过载检测的方法和装置
公开(公告)号：US07440426B2
公开(公告)日：2008-10-21
申请号：US10442493
申请日：2003-05-20
申请人： Franklin P. Antonio , Walid Hamdy
发明人： Franklin P. Antonio , Walid Hamdy
IPC分类号： H04B7/185 , H04Q7/20
CPC分类号： H04W28/26 , H04B17/382 , H04W52/343
摘要： A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to an overload threshold value. If the variance exceeds the overload threshold value, for some period of time, the system is declared to be operating at a potentially unstable point. In this state, future connection originations are denied.
摘要翻译：检测器用于对接收信号的一组功率测量进行采样。接收信号可以包括来自远程用户的一个或多个信号以及干扰。还确定了功率测量集的变化。将方差与过载阈值进行比较。如果方差超过过载阈值，在一段时间内，系统被声明在潜在的不稳定点运行。在这种状态下，将来的连接发起被拒绝。

5. 发明申请

US20060194605A1 Mobile station message having a station class mark field for indicating an MEID capable mobile station 有权
标题翻译：具有用于指示具有MEID功能的移动站的站类标记字段的移动站消息
公开(公告)号：US20060194605A1
公开(公告)日：2006-08-31
申请号：US11332608
申请日：2006-01-12
申请人： Ragulan Sinnarajah , Ravindra Patwardhan , Leslie Chan , Edward Tiedemann , Walid Hamdy , Baaziz Achour , Phillip Price , Bharat Shah , John Nasielski
发明人： Ragulan Sinnarajah , Ravindra Patwardhan , Leslie Chan , Edward Tiedemann , Walid Hamdy , Baaziz Achour , Phillip Price , Bharat Shah , John Nasielski
IPC分类号： H04M1/00
CPC分类号： H04W88/02 , H04W8/22
摘要： A mobile station for wireless communication includes a control processor configured to generate a message for transmission on a reverse signaling channel, the message including a Station Class Mark field having a plurality of bits, a portion of the Station Class Mark field indicating that the mobile station is uniquely identified by a Mobile Station Equipment Identifier.
摘要翻译：一种用于无线通信的移动台包括：控制处理器，被配置为产生用于在反向信令信道上传输的消息，所述消息包括具有多个比特的站类标记字段，所述站类标记字段的一部分指示所述移动站由移动站设备标识符唯一标识。

6. 发明授权

US06229998B1 Method and system for detecting in-band jammers in a spread spectrum wireless base station 有权
标题翻译：用于检测扩频无线基站中的带内干扰的方法和系统
公开(公告)号：US06229998B1
公开(公告)日：2001-05-08
申请号：US09292775
申请日：1999-04-12
申请人： Walid Hamdy , Lennart Mathe , Todd Sutton
发明人： Walid Hamdy , Lennart Mathe , Todd Sutton
IPC分类号： H04B106
CPC分类号： H04B1/7102 , H04K3/22 , H04K2203/16
摘要： A method and apparatus for use in a wireless communication base station which provides real-time, continuous detection of in-band jammers with negligible impact on base station cost. In addition to providing jammer detection, the use of the invention to provide improved hardware and system diagnostic capabilities is presented. The jammer detection apparatus utilizes automatic gain control techniques, digital sampling, and digital signal processing to identify anomalous frequency components in the received power spectral density curve. Also described are the use of complex sampling, the complex fast Fourier transform (FFT), and Hanning windows to improve jammer detection capabilities. A method of estimating the location of in-band jammers is described using the computed received power spectral density curves of multiple base stations.
摘要翻译：一种在无线通信基站中使用的方法和装置，其提供对基站成本具有可忽略的影响的带内干扰器的实时，连续检测。本发明除了提供干扰检测之外，还提供了改进的硬件和系统诊断能力。干扰检测装置利用自动增益控制技术，数字采样和数字信号处理来识别接收功率谱密度曲线中的异常频率分量。还描述了使用复杂采样，复杂的快速傅里叶变换（FFT）和汉宁窗口来改善干扰检测能力。使用计算的多个基站的接收功率谱密度曲线来描述估计带内干扰器的位置的方法。

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