公开(公告)号：US20040264598A1

公开(公告)日：2004-12-30

申请号：US10740047

申请日：2003-12-18

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Leonid Kazakevich ,  Kenneth P. Kearney

IPC: H04K001/02

CPC classification number: H03C3/406 ,  H04B1/30

Abstract: 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.

Abstract translation: 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：US20040247056A1

公开(公告)日：2004-12-09

申请号：US10736381

申请日：2003-12-15

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Leonid Kazakevich ,  Tanbir Haque

IPC: H04L027/08

CPC classification number: H03G3/3052

Abstract: A communication system including an amplifier, a receiver, an analog to digital converter (ADC) and an insertion phase variation compensation module. The amplifier receives a communication signal. 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.

Abstract translation: 一种包括放大器，接收器，模数转换器（ADC）和插入相位变化补偿模块的通信系统。 放大器接收通信信号。 如果放大器使能，放大器放大通信信号，并将放大的通信信号输出到接收器。 如果放大器被禁用，放大器将通信信号传递到接收器而不进行放大。 接收器向ADC输出模拟复合信号。 ADC将数字复合信号输出到插入相位变化补偿模块，该模块抵消当放大器使能或禁用时间断地引入通信信号的相位偏移的影响。

公开(公告)号：US20040106441A1

公开(公告)日：2004-06-03

申请号：US10713601

申请日：2003-11-14

Applicant: InterDigital Technology Corporation

Inventor： Leonid Kazakevich ,  Fatih Ozluturk ,  Alpaslan Demir

IPC: H04M001/00 ,  H04B001/38

CPC classification number: H04B7/0837 ,  H04B7/0871 ,  H04B17/309 ,  H04B17/318 ,  H04W52/42

Abstract: A wireless transmit/receive unit (WTRU) has multiple receivers with an interface to combine received signals to provided enhanced reception. A control unit selectively controls the powering of the receivers to limit power consumption based on selected parameters.

Abstract translation: 无线发射/接收单元（WTRU）具有多个接收机，具有将接收到的信号组合以提供增强的接收的接口。 控制单元选择性地控制接收机的供电以基于所选择的参数来限制功耗。

公开(公告)号：US20030072357A1

公开(公告)日：2003-04-17

申请号：US10267512

申请日：2002-10-09

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Fatih M. Ozluturk

IPC: H04B001/707

CPC classification number: H04B1/708 ,  H04B1/70735 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/7071

Abstract: 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.

Abstract translation: 用户设备（UE）具有执行由第三代合作伙伴计划（3GPP）制定的通用移动电信系统（UMTS）时分双工（TDD）标准的低码片速率选项的获取的电路。 本发明实现了基本SYNC码的检测; 使用的midamble的确定和基于SYNC码调制序列的超帧定时的检测。 这使得能够读取完整的广播信道（BCH）消息。

公开(公告)号：US20020146040A1

公开(公告)日：2002-10-10

申请号：US10083796

申请日：2002-02-27

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Donald M. Grieco

IPC: H04J003/06

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

Abstract: A method for a user equipment (UE) to establish a communication link comprising the steps of receiving an input communication signal at an initial search frequency, processing the input communication signal to retrieve a primary scrambling code, the retrieval of the primary scrambling code being a code decision, and adjusting the search frequency of the UE in response to the code decision.

Abstract translation: 一种用于用户设备（UE）建立通信链路的方法，包括以下步骤：以初始搜索频率接收输入通信信号，处理所述输入通信信号以检索主扰码，所述主扰码的检索是 代码决定，并响应于代码决定调整UE的搜索频率。

公开(公告)号：US20040248602A1

公开(公告)日：2004-12-09

申请号：US10772644

申请日：2004-02-05

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Donald M. Grieco ,  John W. Haim ,  Andrew F. Bednarz ,  Philip J. Pietraski ,  Louis J. Guccione ,  Prabhakar R. Chitrapu

IPC: H04B015/00

CPC classification number: H04B1/7083 ,  H04B1/70735 ,  H04B1/70755 ,  H04B1/709 ,  H04B2201/70701 ,  H04W48/16 ,  H04W56/00

Abstract: A method and system for performing initial cell search is disclosed. Step 1 processing is preformed to detect a peak primary synchronization code (PSC) location (i.e. chip offset or chip location). Step 2 processing is performed to obtain the toffset and code group. Step 3 processing is performed to identify the midamble of a base station with which the WTRU performing the initial cell search may synchronize with.

Abstract translation: 公开了一种用于执行初始小区搜索的方法和系统。 执行步骤1处理以检测峰值主同步码（PSC）位置（即码片偏移或码片位置）。 执行步骤2处理以获得折射和代码组。 执行步骤3处理以识别执行初始小区搜索的WTRU可与其同步的基站的中间码。

公开(公告)号：US20040202262A1

公开(公告)日：2004-10-14

申请号：US10832847

申请日：2004-04-27

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Fatih M. Ozluturk

IPC: H04B007/216

CPC classification number: H04B1/708 ,  H04B1/70735 ,  H04B1/7077 ,  H04B1/7093 ,  H04B2201/7071

Abstract: 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.

Abstract translation: 用户设备（UE）具有执行由第三代合作伙伴计划（3GPP）制定的通用移动电信系统（UMTS）时分双工（TDD）标准的低码片速率选项的获取的电路。 本发明实现了基本SYNC码的检测; 使用的midamble的确定和基于SYNC码调制序列的超帧定时的检测。 这使得能够读取完整的广播信道（BCH）消息。

公开(公告)号：US20040022333A1

公开(公告)日：2004-02-05

申请号：US10629429

申请日：2003-07-29

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir

IPC: H04L027/08

CPC classification number: H04B1/14 ,  H03J2200/02 ,  H04B1/70735 ,  H04B1/708 ,  H04J11/0069 ,  H04L27/0014 ,  H04L2027/0024 ,  H04L2027/0065 ,  H04L2027/0091

Abstract: Method and apparatus for adjusting the frequency of a VCO at a receiver to synchronize the receiver with the transmitter by correlating a synchronization code channel with training sequences to estimate positive and negative offsets which are employed to estimate an error, which is then filtered. The filter output provides voltage controlling the VCO. The same technique may be employed to control a numeric controlled oscillator (NCO).

Abstract translation: 用于通过将同步码信道与训练序列相关联来估计用于估计错误的正和负偏移的方法和装置，用于在接收机处调整VCO的频率以使接收机与发射机同步，然后对其进行滤波。 滤波器输出提供VCO的电压控制。 可以采用相同的技术来控制数控振荡器（NCO）。

公开(公告)号：US20020146039A1

公开(公告)日：2002-10-10

申请号：US09918611

申请日：2001-07-31

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Donald M. Grieco

IPC: H04K001/00 ,  H04J003/06

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J3/0608 ,  H04J11/0069 ,  H04W48/16

Abstract: A system and method for establishing initial synchronization for the link between a UE and a base station in a communication network uses window exclusion logic in order to avoid a deadlock condition upon a detection of the wrong public land mobile network (PLMN). The communication signal is processed in a three step decision process. The first decision step determines a chip offset of the strongest path detected over a frame of samples. In response to the first decision, the second step generates a scrambling code group number and slot offset for retrieving the secondary synchronization code. The third decision step retrieves a primary scrambling code in response to the code group number for synchronizing the UE to the base station.

Abstract translation: 为了在通信网络中的UE和基站之间的链路建立初始同步的系统和方法使用窗口排除逻辑，以便在检测到错误的公共陆地移动网络（PLMN）时避免死锁状况。 通信信号在三步决策过程中进行处理。 第一决定步骤确定在一个采样帧上检测到的最强路径的码片偏移。 响应于第一决定，第二步骤产生用于检索辅助同步码的扰码组号和时隙偏移量。 第三判定步骤响应于用于将UE同步到基站的码组号来检索主扰码。

公开(公告)号：US20040264601A1

公开(公告)日：2004-12-30

申请号：US10747644

申请日：2003-12-29

Applicant: InterDigital Technology Corporation

Inventor： Alpaslan Demir ,  Leonid Kazekevich ,  Tanbir Haque

IPC: H03D003/00

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 (K1). 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 (K2).

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。