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。

公开(公告)号：WO2004012357A1

公开(公告)日：2004-02-05

申请号：PCT/US2003/023812

申请日：2003-07-29

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： TYRA, Fryderyk ,  GUCCIONE, Louis, J.

IPC: H04B1/707

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/709 ,  H04B17/26 ,  H04B17/327 ,  H04W52/24

Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples (108), which are then correlated with a code of the CDMA signal (110). For correlated samples below a first threshold, those correlated samples are processed by being made to zero. For samples between the first threshold and a second threshold (114), those correlated samples are processed by rescaling (116). The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.

Abstract translation: 确定码分多址（CDMA）信号的接收功率。 将与所接收的CDMA信号相关联的频谱的样本作为接收样本（108），然后与CDMA信号（110）的码相关。 对于低于第一阈值的相关样本，这些相关样本被处理为零。 对于第一阈值和第二阈值（114）之间的样本，通过重新缩放处理那些相关样本（116）。 高于第二阈值的相关样本未改变。 接收到的CDMA信号的接收功率电平是在处理之后使用相关采样来确定的。

公开(公告)号：WO2005101675A2

公开(公告)日：2005-10-27

申请号：PCT/US2005/009499

申请日：2005-03-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  KLAHN, Gerard ,  TROIANO, Robert ,  TYRA, Fryderyk ,  AXNESS, Tinothy, A.

Inventor： KLAHN, Gerard ,  TROIANO, Robert ,  TYRA, Fryderyk ,  AXNESS, Tinothy, A.

IPC: H04B1/38

CPC classification number: H04B1/0475

Abstract: Apparatus for reducing adjacent channel interference between proximate wireless communication units. Each wireless communication unit includes a digital baseband circuit and an analog baseband circuit. The digital baseband circuit includes at least one group delay compensation equalizer and at least one finite-impulse response (FIR) filter. The analog baseband circuit includes a radio (transmitter section), a power amplifier and a narrowband filter. The narrowband filter compensates for deficiencies of the power amplifier including distortion and radio frequency (RF) power spill over. The group delay compensation filter compensates for undesired characteristics (e.g., group delay variation) exhibited by the narrowband filter.

Abstract translation: 用于减少邻近无线通信单元之间的相邻信道干扰的装置。 每个无线通信单元包括数字基带电路和模拟基带电路。 数字基带电路包括至少一个组延迟补偿均衡器和至少一个有限脉冲响应（FIR）滤波器。 模拟基带电路包括无线电（发射机部分），功率放大器和窄带滤波器。 窄带滤波器补偿功率放大器的缺陷，包括失真和射频（RF）功率溢出。 组延迟补偿滤波器补偿窄带滤波器所呈现的不期望的特性（例如，组延迟变化）。

公开(公告)号：WO2004084460A2

公开(公告)日：2004-09-30

申请号：PCT/US2004/007496

申请日：2004-03-12

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  HAIM, John, W. ,  TYRA, Fryderyk ,  GUCCIONE, Louis, J. ,  AXNESS, Timothy A. ,  GRIECO, Donald, M.

Inventor： HAIM, John, W. ,  TYRA, Fryderyk ,  GUCCIONE, Louis, J. ,  AXNESS, Timothy A. ,  GRIECO, Donald, M.

IPC: H04L

CPC classification number: H04W52/52 ,  H03G3/001 ,  H03G3/3052 ,  H03G3/3078

Abstract: An automatic gain control (AGC) method according to the present invention applies an initial gain by a digital AGC circuit in a timeslot is determined using a final calculated gain from the same timeslot in the previous frame together with an offset factor. An erase function is activated for a given data sample block when the number of saturated data samples that are detected within the block exceeds a threshold value. The power measurement made by the AGC circuit and used to update the gain is adjusted based on the number of measured data samples that are saturated. These elements provide a gain limiting function and allows limiting of the dynamic range for further signal processing.

Abstract translation: 根据本发明的自动增益控制（AGC）方法，利用来自前一帧中的相同时隙的最终计算的增益以及偏移因子来确定时隙中的数字AGC电路的初始增益。 当块内检测到的饱和数据样本的数量超过阈值时，给定的数据采样块激活擦除功能。 由AGC电路进行的用于更新增益的功率测量基于饱和的测量数据样本的数量进行调整。 这些元件提供增益限制功能，并允许限制用于进一步信号处理的动态范围。

公开(公告)号：EP1527526A1

公开(公告)日：2005-05-04

申请号：EP03772088.5

申请日：2003-07-29

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： TYRA, Fryderyk ,  GUCCIONE, Louis, J.

IPC: H04B1/707

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/709 ,  H04B17/26 ,  H04B17/327 ,  H04W52/24

Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.

公开(公告)号：EP1527526B1

公开(公告)日：2006-11-22

申请号：EP03772088.5

申请日：2003-07-29

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： TYRA, Fryderyk ,  GUCCIONE, Louis, J.

IPC: H04B1/707

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70755 ,  H04B1/709 ,  H04B17/26 ,  H04B17/327 ,  H04W52/24

Abstract: A received power of a code division multiple access (CDMA) signal is determined. Samples of a spectrum associated with the received CDMA signal are taken as received samples, which are then correlated with a code of the CDMA signal. For correlated samples below a first threshold, those correlated samples are processed by being made to be zero. For samples between the first threshold and a second threshold, those correlated samples are processed by rescaling. The correlated samples above the second threshold are passed unchanged. The received power level of the received CDMA signal is determined using the correlated samples after the processing.

公开(公告)号：EP1303933A2

公开(公告)日：2003-04-23

申请号：EP01957205.6

申请日：2001-07-20

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： NOLAN, James ,  KAZAKEVICH, Leonid ,  TYRA, Fryderyk ,  REGIS, Robert ,  SCHREIDER, Fred

IPC: H04B17/00

CPC classification number: H04B17/0087

Abstract: A communication transmission emulator digitally emulates a plurality of signal impairments created by the transmission components and communication medium in a typical communication system. A variety of linear and non-linear distortion characteristics are impressed on a baseband signal between transmit and receive modems to effect thorough testing and optimization of modem performance without requiring transmission frequency components and/or communication channel. The communication transmission emulator comprises transmission channel transmit modules, receive modules and communication media modules. Transmit and receive modules accepting or outputting analogue or digital signals. The transmission emulator is configurable to allow a simulation of a single channel communication; a simulation of a full duplex communication; a simulation of a common base station receiver with multiple users transmitting and a simulation of a base station transmitter with multiple users receiving, all configurations with or without the communication media emulator module. The communication media modules simulate multipath signal components and distortions for the chosen medium.

公开(公告)号：EP1730844A2

公开(公告)日：2006-12-13

申请号：EP05731403.1

申请日：2005-03-22

Applicant: Interdigital Technology Corporation

Inventor： KLAHN, Gerard ,  TROIANO, Robert ,  TYRA, Fryderyk ,  AXNESS, Tinothy, A.

IPC: H04B1/38

CPC classification number: H04B1/0475

Abstract: Apparatus for reducing adjacent channel interference between proximate wireless communication units. Each wireless communication unit includes a digital baseband circuit and an analog baseband circuit. The digital baseband circuit includes at least one group delay compensation equalizer and at least one finite-impulse response (FIR) filter. The analog baseband circuit includes a radio (transmitter section), a power amplifier and a narrowband filter. The narrowband filter compensates for deficiencies of the power amplifier including distortion and radio frequency (RF) power spill over. The group delay compensation filter compensates for undesired characteristics (e.g., group delay variation) exhibited by the narrowband filter.

公开(公告)号：EP1800412A2

公开(公告)日：2007-06-27

申请号：EP05789136.8

申请日：2005-08-22

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

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

IPC: H04B1/26

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 (100). A receiver (100) 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 (110, 116) 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.

公开(公告)号：EP1303933B1

公开(公告)日：2006-04-26

申请号：EP01957205.6

申请日：2001-07-20

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

Inventor： NOLAN, James ,  KAZAKEVICH, Leonid ,  TYRA, Fryderyk ,  REGIS, Robert ,  SCHREIDER, Fred

IPC: H04B17/00

CPC classification number: H04B17/0087

Abstract: A communication transmission emulator digitally emulates a plurality of signal impairments created by the transmission components and communication medium in a typical communication system. A variety of linear and non-linear distortion characteristics are impressed on a baseband signal between transmit and receive modems to effect thorough testing and optimization of modem performance without requiring transmission frequency components and/or communication channel. The communication transmission emulator comprises transmission channel transmit modules, receive modules and communication media modules. Transmit and receive modules accepting or outputting analogue or digital signals. The transmission emulator is configurable to allow a simulation of a single channel communication; a simulation of a full duplex communication; a simulation of a common base station receiver with multiple users transmitting and a simulation of a base station transmitter with multiple users receiving, all configurations with or without the communication media emulator module. The communication media modules simulate multipath signal components and distortions for the chosen medium. In dependence upon the configuration, each module type and number can be individually configured, adding a plurality of linear and non-linear impairments to the baseband signal along with delay components to evaluate and optimize modem design and technology.