公开(公告)号：AU2003220645A1

公开(公告)日：2003-10-20

申请号：AU2003220645

申请日：2003-04-01

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  LI BIN ,  DIFAZIO ROBERT A

IPC: H04B20060101 ,  H04B17/00 ,  H04Q1/20

公开(公告)号：AR063487A2

公开(公告)日：2009-01-28

申请号：ARP070104615

申请日：2007-10-18

Applicant: INTERDIGITAL TECH CORP

Inventor： LI BIN

IPC: H04B1/707

Abstract: Una unidad inalámbrica de transmision/recepcion (WTRU) que comprende: un receptor configurado para recibir y muestrear senales inalámbricas de espectro ensanchado; incluyendo dicho receptor: un reunificador configurado para reunificar muestras tempranas y tardías mediante el uso de un secuencia de pseudos-ruido; un detector temprano-tardío configurado para generar senales de error desde la salida del reunificador; un componente de bucle de realimentacion configurado para proveer seguimiento de tiempo para una pluralidad de muestras a tiempo, tempranas y tardías, y para proveer un ajuste en base a un signo de una acumulacion de las senales de error generadas, pero no de la magnitud de las muestras o de las senales de error. También se divulga una unidad movil para su uso en un sistema celular movil que comprende a la WTRU, una estacion base que comprende a la WTRU, y un método para WTRU.

公开(公告)号：HK1095932A1

公开(公告)日：2007-05-18

申请号：HK07103617

申请日：2007-04-03

Applicant: INTERDIGITAL TECH CORP

Inventor： LI BIN

IPC: H04B1/707

Abstract: A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes the implementations of despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals.

公开(公告)号：NO20061886L

公开(公告)日：2006-06-23

申请号：NO20061886

申请日：2006-04-27

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LI BIN

IPC: H04B1/707 ,  H04B7/08

Abstract: A receiver comprises a plurality of antenna elements for receiving a data signal. Each antenna element has a plurality of Rake fingers. Each Rake finger processes a received multipath component of the received data signal of its antenna element by applying a complex weight gain to that received multipath component. A complex weight gain generator determines the complex weight gain for each Rake finger for each antenna element using an input from all the Rake fingers. A summer combines an output of each Rake finger to produce an estimate of the data signal.

公开(公告)号：NO20061886A

公开(公告)日：2006-06-23

申请号：NO20061886

申请日：2006-04-27

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LI BIN

IPC: H04B1/707 ,  H04B7/08

CPC classification number: H04B1/712 ,  H04B7/0854

公开(公告)号：CA2588262A1

公开(公告)日：2006-05-18

申请号：CA2588262

申请日：2005-11-02

Applicant: INTERDIGITAL TECH CORP

Inventor： STERNBERG GREGORY S ,  DEMIR ALPASLAN ,  PAN JUNG-LIN ,  LI BIN ,  YANG RUI ,  BELURI MIHAELA ,  PIETRASKI PHILIP J

IPC: H03H7/30 ,  G06F17/10 ,  H03K5/159 ,  H04B1/10 ,  H04B3/14

Abstract: 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：NO20060421L

公开(公告)日：2006-03-23

申请号：NO20060421

申请日：2006-01-25

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  YANG RUI ,  LI BIN ,  ZEIRA ARIELA

IPC: H03D1/04 ,  H04B20060101 ,  H04B1/707 ,  H04L25/03

Abstract: The present invention has many aspects. One aspect of the invention is to perform equalization using a sliding window approach. A second aspect reuses information derived for each window for use by a subsequent window. A third aspect utilizes a discrete Fourier transform based approach for the equalization. A fourth aspect relates to handling oversampling of the received signals and channel responses. A fifth aspect relates to handling multiple reception antennas. A sixth embodiment relates to handling both oversampling and multiple reception antennas.

公开(公告)号：NO20060421A

公开(公告)日：2006-03-23

申请号：NO20060421

申请日：2006-01-25

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  YANG RUI ,  LI BIN ,  ZEIRA ARIELA

IPC: H03D1/04 ,  H04B20060101 ,  H04B1/707 ,  H04L25/03

CPC classification number: H04L25/03305 ,  H04B1/71055 ,  H04L25/03331 ,  H04L25/03993

公开(公告)号：CA2540381A1

公开(公告)日：2005-04-14

申请号：CA2540381

申请日：2004-09-01

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  LI BIN

IPC: H04B15/00 ,  H04B1/707 ,  H04B7/08 ,  H04K1/00 ,  H04L27/30

Abstract: A receiver comprises a plurality of antenna elements for receiving a data signal. Each antenna element has a plurality of Rake fingers. Each Rake finger processes a received multipath component of the received data signal of its antenna element by applying a complex weight gain to that received multipath component. A complex weight gain generator determines the complex weight gain for each Rake finger for each antenna element using an input from all the Rake fingers. A summer combines an output of each Rake finger to produce an estimate of the data signal.

公开(公告)号：NO20044720L

公开(公告)日：2004-11-01

申请号：NO20044720

申请日：2004-11-01

Applicant: INTERDIGITAL TECH CORP

Inventor： LI BIN

IPC: H04B1/707 ,  H04B1/69

Abstract: A simple and robust CTL is used for time tracking of multipath components of a spread spectrum signal transmitted over a wireless multipath fading channel. A digital code-tracking loop includes the implementations of despreading early and late data samples by use of a pseudonoise sequence, an error signal output generated by the despreading, and adjustment for a plurality of on-time, early and late samples, a data rate of a control signal provided as a fractional proportion of a data rate of error signals.