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    METHOD AND APPARATUS FOR PROCESSING MULTIPLE WIRELESS COMMUNICATION SERVICES
    1.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING MULTIPLE WIRELESS COMMUNICATION SERVICES 审中-公开
    用于处理多个无线通信服务的方法和装置

    公开(公告)号：WO2006026249A2

    公开(公告)日：2006-03-09

    申请号：PCT/US2005/029858

    申请日：2005-08-22

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  AYCIN, Erica, Ellyn ,  KLAHN, Gerard ,  HAQUE, Tanbir ,  TYRA, Fryderyk ,  HAIM, John, W.

    Inventor： AYCIN, Erica, Ellyn ,  KLAHN, Gerard ,  HAQUE, Tanbir ,  TYRA, Fryderyk ,  HAIM, John, W.

    IPC: H04B7/08 ,  H04M1/00

    CPC classification number: H04B1/1036 ,  H04B1/0003 ,  H04B17/336 ,  H04B17/382

    Abstract: A method and apparatus for processing multiple wireless communication services in a receiver. A receiver receives more than one wireless communication service simultaneously via a wireless interface. Each service is transmitted via a different carrier frequency band. The multiple received carrier signals are down-converted to an intermediate frequency (IF) band using a mixer and a local oscillator (LO). The LO and sampling frequencies are adjusted such that the converted IF band signals of the input signals are spectrally adjacent or overlapping each other to some degree. SINAD of the services is measured at each of a plurality of spectrally overlapping conditions. The LO frequencies and the sampling frequency are then adjusted based on the SINAD measurement results.

    Abstract translation: 一种在接收机中处理多个无线通信服务的方法和装置。 接收机通过无线接口同时接收多于一个的无线通信服务。 每个服务通过不同的载波频带传输。 使用混频器和本地振荡器（LO）将多个接收的载波信号下变频到中频（IF）频带。 调整LO和采样频率使得输入信号的转换的IF频带信号在一定程度上彼此频谱相邻或重叠。 在多个频谱重叠条件中的每一个处测量服务的SINAD。 然后根据SINAD测量结果调整LO频率和采样频率。

    DIGITAL BASEBAND RECEIVER INCLUDING A HIGH PASS FILTER COMPENSATION MODULE FOR SUPPRESSING GROUP DELAY VARIATION DISTORTION INCURRED DUE TO ANALOG HIGH PASS FILTER DEFICIENCIES
    4.
    发明申请
    DIGITAL BASEBAND RECEIVER INCLUDING A HIGH PASS FILTER COMPENSATION MODULE FOR SUPPRESSING GROUP DELAY VARIATION DISTORTION INCURRED DUE TO ANALOG HIGH PASS FILTER DEFICIENCIES 审中-公开
    数字基带接收器，包括高通滤波器补偿模块，用于抑制模拟高通滤波器缺陷引起的组延迟变差失真

    公开(公告)号：WO2005006567A2

    公开(公告)日：2005-01-20

    申请号：PCT/US2004/015800

    申请日：2004-05-20

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    Inventor： DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    IPC: H04B

    CPC classification number: H03D3/009

    Abstract: A digital baseband (DBB) radio frequency (RF) receiver includes a digital high pass filter compensation (HPFC) module used to suppress group delay variation distortion caused by using low cost analog high pass filters (HPFs) in the receiver. The digital HPFC module reduces a cutoff frequency, established by the HPFs for the real and imaginary signal component frequency domain responses by providing a first compensation signal having a first predetermined value (K 1 ). The digital HPFC module adjusts the gain of the high pass response of the real and imaginary signal component frequency domains by providing a second compensation signal having a second predetermined value (K 2 ).

    Abstract translation: 数字基带（RFB）射频接收机包括数字高通滤波器补偿（HPFC）模块，用于抑制在接收机中使用低成本模拟高通滤波器（HPF）引起的群延迟变化失真。 数字HPFC模块通过提供具有第一预定值（K1）的第一补偿信号来减少由HPF为实信号分量和虚信号分量频域响应建立的截止频率。 数字HPFC模块通过提供具有第二预定值（K2）的第二补偿信号来调整实信号分量频域和虚信号分量频域的高通响应的增益。

    EXAMINER
    7.
    发明申请
    EXAMINER 审中-公开

    公开(公告)号：WO2005002242A3

    公开(公告)日：2005-01-06

    申请号：PCT/US2004/013882

    申请日：2004-05-05

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    Inventor： DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    IPC: H04L25/66

    Abstract: A communication system including an amplifier (105), a receiver (110), an analog to digital converter (ADC 115) and an insertion phase variation compensation module (120). The amplifier receives a communication signal (150). If the amplifier is enabled, the amplifier amplifies the communication signal and outputs the amplified communication signal to the receiver. If the amplifier is disabled, the amplifier passes the communication signal to the receiver without amplifying it. The receiver outputs an analog complex signal to the ADC. The ADC outputs a digital complex signal to the insertion phase variation compensation module which counteracts the effects of a phase offset intermittently introduced into the communication signal when the amplifier is enabled or disabled.

    DIGITAL TRANSMITTER
    8.
    发明申请
    DIGITAL TRANSMITTER 审中-公开
    数字发射机

    公开(公告)号：WO2007106460A2

    公开(公告)日：2007-09-20

    申请号：PCT/US2007/006266

    申请日：2007-03-12

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  HAQUE, Tanbir ,  KAZAKEVICH, Leonid

    Inventor： HAQUE, Tanbir ,  KAZAKEVICH, Leonid

    IPC: H04L27/36

    CPC classification number: H04L27/361 ,  H03F3/217 ,  H03F3/24 ,  H03F2200/331 ,  H03F2200/336 ,  H04B1/0014 ,  H04B1/0475 ,  H04B2001/0408 ,  H04L27/362 ,  H04L27/364

    Abstract: In a digital Cartesian modulation transmitter, an encoder generates 1-bit logic signals from in-phase and quadrature signals. A single bit digital modulator multiplexes the 1-bit logic signals for Cartesian I/Q modulation. A digital upconverter (DUG) upconverts the multiplexed 1-bit logic signal. A digital power amplifier (DPA) generates a radio frequency (RF) signal based on the upconverted signal. In a digital polar modulation transmitter, an encoder converts a magnitude signal to a first 1-bit logic signal. A digital phase modulator modulates a carrier using a phase signal to generate a second 1-bit logic signal. A DUC upconverts the second 1-bit logic signal. A first-in first-out (FIFO) memory stores the first 1-bit logic signal. A combiner combines angle information contained in the second 1-bit logic signal with magnitude information contained in the first 1-bit logic signal stored in the FIFO memory. A DPA generates an RF signal based on the combined signal.

    Abstract translation: 在数字笛卡尔调制发射机中，编码器从同相和正交信号中产生1位逻辑信号。 单位数字调制器将1位逻辑信号复用为笛卡尔I / Q调制。 数字上变频器（DUG）上变频复用的1位逻辑信号。 数字功率放大器（DPA）基于上变频信号产生射频（RF）信号。 在数字极化调制发射机中，编码器将幅度信号转换为第一个1位逻辑信号。 数字相位调制器使用相位信号来调制载波以产生第二个1位逻辑信号。 DUC将第二个1位逻辑信号上变频。 先进先出（FIFO）存储器存储第一个1位逻辑信号。 组合器将包含在第二1位逻辑信号中的角度信息与存储在FIFO存储器中的第一1位逻辑信号中包含的幅度信息相结合。 DPA根据组合信号产生RF信号。

    METHOD AND SYSTEM FOR CONTINUOUSLY COMPENSATING FOR PHASE VARIATIONS INTRODUCED INTO A COMMUNICATION SIGNAL BY AUTOMATIC GAIN CONTROL ADJUSTMENTS
    9.
    发明申请
    METHOD AND SYSTEM FOR CONTINUOUSLY COMPENSATING FOR PHASE VARIATIONS INTRODUCED INTO A COMMUNICATION SIGNAL BY AUTOMATIC GAIN CONTROL ADJUSTMENTS 审中-公开
    用于通过自动增益控制调整引入通信信号的相位变化的连续补偿方法和系统

    公开(公告)号：WO2005002074A1

    公开(公告)日：2005-01-06

    申请号：PCT/US2004/014100

    申请日：2004-05-06

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    Inventor： DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    IPC: H04B1/06

    CPC classification number: H04L27/3809 ,  H03G3/001 ,  H03G3/3052 ,  H04B1/30 ,  H04L27/38 ,  H04L2027/003 ,  H04L2027/0046 ,  H04W52/52

    Abstract: A communication system (100) including an automatic control (AGC) circuit (105), a receiver (110), an analog to digital (ADC) converter (115) and an insertion phase variation compensation module (120). The AGC circuit receives and amplifies communication signals (150). The gain of the AGC circuit is adjusted. The AGC circuit outputsan amplified signal (145) to the receiver which, in turn, outputs an analog complex signal to the ADC (115). The ADC outputs a digital complex signal to the insertion phase variation compensation module (120) which counteracts the effects of phase offsets introduced into the communication signal due to the continuous gain adjustments associated with the AGC circuit.

    Abstract translation: 一种包括自动控制（AGC）电路（105），接收机（110），模数（ADC）转换器（115）和插入相位变化补偿模块（120）的通信系统（100）。 AGC电路接收并放大通信信号（150）。 调整AGC电路的增益。 AGC电路将放大信号（145）输出到接收器，接收器又将模拟复合信号输出到ADC（115）。 ADC向插入相位变化补偿模块（120）输出数字复合信号，该模块抵消由于与AGC电路相关联的连续增益调整而引入到通信信号中的相位偏移的影响。

    METHOD AND SYSTEM FOR SUPPRESSING CARRIER LEAKAGE
    10.
    发明申请
    METHOD AND SYSTEM FOR SUPPRESSING CARRIER LEAKAGE 审中-公开
    用于抑制载波泄漏的方法和系统

    公开(公告)号：WO2005002063A2

    公开(公告)日：2005-01-06

    申请号：PCT/US2004/013486

    申请日：2004-04-30

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    Inventor： DEMIR, Alpaslan ,  KAZAKEVICH, Leonid ,  HAQUE, Tanbir

    IPC: H04B

    CPC classification number: H04B1/30 ,  H03C3/406 ,  H04L2027/0016 ,  H04L2027/0018

    Abstract: A method and system for determining at least one DC offset compensation value used to suppress carrier leakage occurring on real and imaginary signal paths in an analog radio transmitter when a significant temperature change in the transmitter is detected. At least one DC offset signal having a level that corresponds to the at least one DC offset compensation value is provided to a digital DC offset compensation module which adjusts the DC level of at least one of the real and imaginary signal paths.

    Abstract translation: 一种用于在检测到发射机中的明显的温度变化时，确定至少一个DC偏移补偿值用于抑制在模拟无线电发射机的实信号路径和虚信号路径上发生的载波泄漏的方法和系统。 具有对应于至少一个DC偏移补偿值的电平的至少一个DC偏移信号被提供给数字DC偏移补偿模块，其调整实信号路径和虚信号路径中的至少一个的DC电平。

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