公开(公告)号：US07746920B2

公开(公告)日：2010-06-29

申请号：US12245800

申请日：2008-10-06

申请人： Alpaslan Demir ,  Donald M Grieco

发明人： Alpaslan Demir ,  Donald M Grieco

IPC分类号： H04B1/69

CPC分类号： H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

摘要： A method of generating an index value associated with a primary synchronization code within a communication signal includes splitting a sampled communication signal into even and odd samples. The even and odd samples are correlated with a primary synchronization code of the communication signal and complex values of the even and odd samples are generated. Signal strength values for the even and odd samples are approximated and the approximate signal strength values within a frame of the communication signal are accumulated. A highest accumulated signal strength value is assigned as an index value.

摘要翻译： 生成与通信信号内的主同步码相关联的索引值的方法包括将采样的通信信号分成偶数和奇数样本。 偶数和奇数样本与通信信号的主同步码相关，并产生偶数和奇数样本的复数值。 对偶数和奇数样本的信号强度值进行近似，并且累积通信信号的帧内的近似信号强度值。 分配最高累积信号强度值作为指标值。

公开(公告)号：US20090034670A1

公开(公告)日：2009-02-05

申请号：US12245800

申请日：2008-10-06

申请人： Alpaslan Demir ,  Donald M. Grieco

发明人： Alpaslan Demir ,  Donald M. Grieco

IPC分类号： H04L7/00

CPC分类号： H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

摘要： A method of generating an index value associated with a primary synchronization code within a communication signal includes splitting a sampled communication signal into even and odd samples. The even and odd samples are correlated with a primary synchronization code of the communication signal and complex values of the even and odd samples are generated. Signal strength values for the even and odd samples are approximated and the approximate signal strength values within a frame of the communication signal are accumulated. A highest accumulated signal strength value is assigned as an index value.

摘要翻译： 生成与通信信号内的主同步码相关联的索引值的方法包括将采样的通信信号分成偶数和奇数样本。 偶数和奇数样本与通信信号的主同步码相关，并产生偶数和奇数样本的复数值。 对偶数和奇数样本的信号强度值进行近似，并且累积通信信号的帧内的近似信号强度值。 分配最高累积信号强度值作为指标值。

公开(公告)号：US09413500B2

公开(公告)日：2016-08-09

申请号：US13232367

申请日：2011-09-14

申请人： Amith V. Chincholi ,  Alpaslan Demir ,  Tanbir Haque

发明人： Amith V. Chincholi ,  Alpaslan Demir ,  Tanbir Haque

IPC分类号： H04J1/00 ,  H04L5/00 ,  H04L5/14 ,  H04L27/00 ,  H04B7/212 ,  H04B7/00

CPC分类号： H04W72/0446 ,  H04B7/00 ,  H04J1/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0071 ,  H04L5/14 ,  H04L5/143 ,  H04L27/0006 ,  H04L43/16 ,  H04W72/0413 ,  H04W72/042

摘要： A method and apparatus are described that provides flexible spectrum usage by using a paired frequency division duplex (FDD) spectrum to enable dynamic access in television white space (TVWS), sub-leased spectrum or unlicensed spectrum, (e.g., industrial, scientific and medical (ISM) bands), in a femto cell environment or the like. Elastic FDD (E-FDD) enables femto cell operation in TVWS, sub-leased spectrum and/or unlicensed spectrum, either simultaneously with licensed spectrum or as an alternate channel to licensed spectrum. E-FDD enables dynamic asymmetric bandwidth allocation for uplink (UL) and downlink (DL) in FDD, and enables variable duplex spacing, (i.e., using FDD with minimum duplex spacing between DL and UL spectrum, or, using hybrid-FDD, (FDD in a time duplexed fashion), when a spectrum gap between the UL and DL spectrum is below a certain minimum threshold. Additionally, the signaling enhancements to implement E-FDD are also provided.

摘要翻译： 描述了一种方法和装置，其通过使用成对的频分双工（FDD）频谱来实现灵活的频谱使用，以实现电视空白（TVWS），次租用频谱或非许可频谱（例如工业，科学和医学） （ISM）频带），在毫微微小区环境等中。 弹性FDD（E-FDD）使得能够在TVWS，子租用频谱和/或非许可频谱中的毫微微小区操作，或者与许可频谱同时或作为许可频谱的备用信道。 E-FDD实现了FDD中的上行链路（UL）和下行链路（DL）的动态非对称带宽分配，并且实现了可变双工间隔（即，使用DL和UL频谱之间具有最小双工间隔的FDD，或者使用混合FDD， FDD以时间双工方式），当UL和DL频谱之间的频谱间隔低于某个最小阈值时，还提供了实现E-FDD的信令增强。

公开(公告)号：US09007939B2

公开(公告)日：2015-04-14

申请号：US13514728

申请日：2010-12-10

申请人： Alexander Reznik ,  Amith V. Chincholi ,  Alpaslan Demir ,  Jean-Louis Gauvreau ,  James M. Miller

发明人： Alexander Reznik ,  Amith V. Chincholi ,  Alpaslan Demir ,  Jean-Louis Gauvreau ,  James M. Miller

IPC分类号： H04W16/14 ,  H04W24/00 ,  H04W72/00

CPC分类号： H04W16/14 ,  H04W24/00 ,  H04W72/00

摘要： A method and apparatus for a secondary wireless transmit/receive unit (WTRU) to use of secondary cellular spectrum are provided. The secondary WTRU monitors transmissions of a primary WTRU; determines whether to provide assistance to the primary WTRU; and in response to a determination to provide assistance, performs cooperative communications with the primary WTRU for its transmission of data to a base station. If the assistance results in the data being transmitted to the base station faster than it would have with out assistance, the secondary WTRU may utilize uplink resources originally intended for the primary WTRU.

摘要翻译： 提供了用于辅助无线发射/接收单元（WTRU）使用二次蜂窝频谱的方法和装置。 二级WTRU监视主WTRU的传输; 确定是否向主WTRU提供协助; 并且响应于提供帮助的确定，与主WTRU进行协作通信以将其数据传送到基站。 如果辅助导致数据被发送到基站比在外部协助方面更快，则辅助WTRU可以利用原始用于主WTRU的上行链路资源。

公开(公告)号：US07460614B2

公开(公告)日：2008-12-02

申请号：US10740047

申请日：2003-12-18

申请人： Alpaslan Demir ,  Leonid Kazakevich ,  Kenneth P. Kearney

发明人： Alpaslan Demir ,  Leonid Kazakevich ,  Kenneth P. Kearney

IPC分类号： H04B1/00 ,  H04L27/00 ,  H04L27/36

CPC分类号： H03C3/406 ,  H04B1/30

摘要： A method and system for determining amplitude and phase compensation values used to adjust the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter. The compensation values may be determined in response to detecting a significant temperature change in the transmitter. Corresponding amplitude and phase adjustment signals having levels that correspond to the compensation values are provided to respective amplitude and phase imbalance compensation modules to adjust the amplitude and phase characteristics of at least one of the real and imaginary signal components.

摘要翻译： 用于确定用于调整由模拟无线电发射机处理的复信号的实信号和虚信号分量的幅度和相位特性的幅度和相位补偿值的方法和系统。 可以响应于检测到发射器中的明显的温度变化来确定补偿值。 具有对应于补偿值的电平的对应幅度和相位调整信号被提供给相应的幅度和相位不平衡补偿模块，以调整实信号分量和虚信号分量中的至少一个的振幅和相位特性。

公开(公告)号：US20080214125A1

公开(公告)日：2008-09-04

申请号：US12121092

申请日：2008-05-15

申请人： Tanbir Haque ,  Alpaslan Demir ,  Leonid Kazakevich ,  Gerard Klahn

发明人： Tanbir Haque ,  Alpaslan Demir ,  Leonid Kazakevich ,  Gerard Klahn

IPC分类号： H04B1/40 ,  H04B1/04

CPC分类号： H04B1/0458 ,  H03F1/0261 ,  H03F1/56 ,  H03F3/24 ,  H03F2200/207 ,  H03F2200/465 ,  H03G3/3042 ,  H04W52/52 ,  Y02D70/14

摘要： A method and apparatus for dynamically adjusting the impedance between a transmitter's power amplifier (PA) and antenna to efficiently transfer power from the PA to the antenna. The impedance between the PA and the antenna is adjusted based on power level measurements and/or PA direct current (DC) consumption measurements, depending on whether the PA is a linear PA or a switch-mode PA. In another embodiment, a hybrid PA including a first stage linear PA and a second stage switch-mode PA is implemented in a transmitter. The hybrid PA selectively connects the output of the first stage linear PA to one of the input of the second stage switch-mode PA and the output of the hybrid PA, depending on the output power level of the first stage linear PA, the output power level of the hybrid PA, or a requirement indicated by a transmit power control (TPC) command.

摘要翻译： 一种用于动态调整发射机功率放大器（PA）和天线之间的阻抗以有效地将功率从PA传输到天线的方法和装置。 根据PA是线性PA还是开关模式PA，PA和天线之间的阻抗根据功率电平测量和/或PA直流（DC）消耗测量值进行调整。 在另一个实施例中，包括第一级线性PA和第二级开关模式PA的混合PA实现在发射机中。 根据第一级线性PA的输出功率电平，混合PA选择性地将第一级线性PA的输出连接到第二级开关模式PA的输入和混合PA的输出之一，输出功率 混合PA的电平或由发射功率控制（TPC）指令指示的要求。

公开(公告)号：US07133644B2

公开(公告)日：2006-11-07

申请号：US10736294

申请日：2003-12-15

申请人： Alpaslan Demir ,  Leonid Kazakevich ,  Kenneth P. Kearney

发明人： Alpaslan Demir ,  Leonid Kazakevich ,  Kenneth P. Kearney

IPC分类号： H04B17/00 ,  H04B1/26 ,  H04L25/06

CPC分类号： H04B1/0475 ,  H03F1/3241 ,  H03F1/3294 ,  H03F1/34 ,  H03F3/24 ,  H03F2200/462 ,  H03F2200/465 ,  H03F2200/468 ,  H04B2001/0425 ,  H04B2001/0433

摘要： In order to compensate for performance degradation caused by inferior low-cost analog radio component tolerances of an analog radio, a wireless communication transmitter employs a control process to implement numerous digital signal processing (DSP) techniques to compensate for deficiencies of such analog components so that modern specifications may be relaxed. By monitoring a plurality of parameters associated with the analog radio, such as temperature, bias current or the like, enhanced phase and amplitude compensation, as well as many other radio frequency (RF) parameters may be implemented.

摘要翻译： 为了补偿由模拟无线电的低成本模拟无线电组件公差的劣化引起的性能下降，无线通信发射机采用控制过程来实现许多数字信号处理（DSP）技术来补偿这种模拟组件的缺陷，使得 现代规格可能放松。 通过监视与诸如温度，偏置电流等的模拟无线电相关联的多个参数，可以实现增强的相位和幅度补偿以及许多其它射频（RF）参数。

公开(公告)号：US20060171451A1

公开(公告)日：2006-08-03

申请号：US11265373

申请日：2005-11-02

申请人： Philip Pietraski ,  Mihaela Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory Sternberg ,  Rui Yang ,  Bin Li

发明人： Philip Pietraski ,  Mihaela Beluri ,  Alpaslan Demir ,  Jung-Lin Pan ,  Gregory Sternberg ,  Rui Yang ,  Bin Li

IPC分类号： H03K5/159

CPC分类号： H04L25/03038 ,  H04B1/7097 ,  H04L27/0014 ,  H04L2025/03509 ,  H04L2025/03547 ,  H04L2025/03585 ,  H04L2025/03611 ,  H04L2025/03617 ,  H04L2025/03687 ,  H04L2027/003 ,  H04L2027/0038 ,  H04L2027/0065

摘要： An adaptive equalizer including an equalizer filter and a tap coefficients generator used to process a sample data stream derived from a plurality of received signals is disclosed. The tap coefficients generator includes an equalizer tap update unit, a vector norm square estimator, an active taps mask generator, a switch and a pilot amplitude reference unit used to minimize the dynamic range of the equalizer filter. A dynamic mask vector is used to mask active taps generated by the equalizer tap update unit when an unmasked signal output by the equalizer filter is selected by the switch to generate an error signal fed to the equalizer tap update unit. A fixed mask vector is used to mask active taps generated by the equalizer tap update unit when a masked signal output by the equalizer filter is used to generate the error signal.

公开(公告)号：US06760365B2

公开(公告)日：2004-07-06

申请号：US10267512

申请日：2002-10-09

申请人： Alpaslan Demir ,  Faith M. Ozluturk

发明人： Alpaslan Demir ,  Faith M. Ozluturk

IPC分类号： H04B1707

CPC分类号： H04B1/708 ,  H04B1/70735 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/7071

摘要： A User Equipment (UE) has a circuit that performs the acquisition for the low chip rate option of the Universal Mobile Telecommunication System (UMTS) Time Division Duplex (TDD) standard as formulated by the Third Generation Partnership Project (3GPP). The present invention implements the detection of the basic SYNC code; the determination of the midamble used and the detection of the superframe timing based on SYNC code modulation sequence. This enables reading of a full Broadcast Channel (BCH) message.

公开(公告)号：US09769692B2

公开(公告)日：2017-09-19

申请号：US13286610

申请日：2011-11-01

申请人： Martino M. Freda ,  Alpaslan Demir ,  Athmane Touag ,  Phillip L. Leithead ,  Amith V. Chincholi ,  Jean-Louis Gauvreau

发明人： Martino M. Freda ,  Alpaslan Demir ,  Athmane Touag ,  Phillip L. Leithead ,  Amith V. Chincholi ,  Ramya Gopalan ,  Sowmya Gopalan ,  Jean-Louis Gauvreau

IPC分类号： H04B1/00 ,  H04W24/10 ,  H04W72/04 ,  H04W72/00

CPC分类号： H04W24/10 ,  H04B1/0067 ,  H04W72/00 ,  H04W72/0453

摘要： A wireless transmit/receive unit (WTRU) and a dynamic spectrum management (DSM) engine are described. The WTRU includes a transceiver, a radio frequency (RF) spectrum sensing unit and a processing unit. The transceiver transmits over a wireless link. The RF spectrum sensing unit measures information indicative of usage of a spectrum by other devices. The processing unit detects a change in performance of the wireless link, controls the transceiver to transmit a notification to a DSM engine indicating that the change in the performance of the wireless link was detected on a condition that the processing unit detects the change in performance of the wireless link, and receives a sensing task request for the WTRU to measure the information indicative of the usage of the spectrum by other devices based on the notification transmitted to the DSM engine indicating that the change in the performance of the wireless link was detected.