公开(公告)号：WO2005101675A3

公开(公告)日：2009-04-23

申请号：PCT/US2005009499

申请日：2005-03-22

Applicant: INTERDIGITAL TECH CORP ,  KLAHN GERARD ,  TROIANO ROBERT ,  TYRA FRYDERYK ,  AXNESS TINOTHY A

Inventor： KLAHN GERARD ,  TROIANO ROBERT ,  TYRA FRYDERYK ,  AXNESS TINOTHY A

IPC: H04K1/02 ,  H04B1/04 ,  H04B1/38 ,  H04L25/03 ,  H04L25/49 ,  H04L27/00

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：WO2005065171A3

公开(公告)日：2005-10-13

申请号：PCT/US2004041874

申请日：2004-12-09

Applicant: INTERDIGITAL TECH CORP ,  IACONO ANA LUCIA ,  AXNESS TINOTHY A ,  JOHNSON KEVEN PETER ,  GORSUCH THOMAS ERIC

Inventor： IACONO ANA LUCIA ,  AXNESS TINOTHY A ,  GORSUCH THOMAS ERIC

IPC: H04W16/00 ,  H04W16/28 ,  H04Q7/20

CPC classification number: H04W16/00 ,  H01Q3/247 ,  H01Q3/2605 ,  H04W16/28 ,  H04W24/10 ,  H04W36/18 ,  H04W88/06

Abstract: A method and apparatus for establishing a set of cells used to support a soft handoff. The apparatus is used in a wireless communication system including a plurality of cells and at least one wireless transmit/receive unit (WTRU) having at least one beam antenna which is configured to transition between a switch beam mode and an omni-directional beam mode. The WTRU communicates with a serving cell while the beam antenna is in the switch beam mode. The WTRU performs measurements on cells neighboring the serving cell to determine measurement results associated with the cells. The WTRU then determines whether each of the measurement results exceeds a predetermined threshold. A set of cells associated with the measurement results that exceed the predetermined threshold is established. If the number of cells in the set reaches a predetermined number, the beam antenna transitions from the switch beam mode to the omni-directional beam mode.

Abstract translation: 一种用于建立用于支持软切换的小区集合的方法和装置。 该装置用于包括多个小区的无线通信系统和至少一个具有至少一个波束天线的无线发射/接收单元（WTRU），其被配置为在切换波束模式和全向波束模式之间转换。 当波束天线处于切换波束模式时，WTRU与服务小区进行通信。 WTRU对与服务小区相邻的小区进行测量，以确定与小区相关联的测量结果。 然后，WTRU确定每个测量结果是否超过预定阈值。 建立与超过预定阈值的测量结果相关联的一组单元。 如果集合中的小区数目达到预定数量，则波束天线从切换波束模式转换到全向波束模式。

公开(公告)号：BRPI0508735A

公开(公告)日：2007-08-14

申请号：BRPI0508735

申请日：2005-03-22

Applicant: INTERDIGITAL TECH CORP

Inventor： KLAHN GERARD ,  TROIANO ROBERT ,  TYRA FRYDERYK ,  AXNESS TINOTHY A

IPC: H04B1/38 ,  H04B1/04

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：AU2005234405A1

公开(公告)日：2005-10-27

申请号：AU2005234405

申请日：2005-03-22

Applicant: INTERDIGITAL TECH CORP

Inventor： TROIANO ROBERT ,  TYRA FRYDERYK ,  AXNESS TINOTHY A ,  KLAHN GERARD

IPC: H04B1/38 ,  H04B1/04

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.