公开(公告)号：NO326185B1

公开(公告)日：2008-10-13

申请号：NO20023623

申请日：2002-07-30

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  ZEIRA ARIELA ,  ZEIRA ELDAD ,  REZNIK ALEXANDER

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7093 ,  H04B1/7103 ,  H04B1/7105 ,  H04B7/00 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04Q7/38

Abstract: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts (16). Each communication burst has a unique channelization code and a midamble code (20). Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.

公开(公告)号：NO20080286A

公开(公告)日：2008-03-18

申请号：NO20080286

申请日：2008-01-15

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  REZNIK ALEXANDER ,  PAN JUNG-LIN ,  HEPLER EDWARD L ,  ZHANG GUODONG ,  RACHA RENUKA ,  WANG PETER SHAOMIN ,  GAZDA ROBERT ,  SMITH HARRY SETH

IPC: H04J3/14 ,  H04L29/06

CPC classification number: H04W72/0406 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L1/1896

公开(公告)号：MY135159A

公开(公告)日：2008-02-29

申请号：MYPI20031350

申请日：2003-04-11

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN DAVID JR ,  FERRANTE STEVEN ,  BERGHIUS TIMOTHY ,  MEYER JAN ,  BOHNHOFF PETER ,  REZNIK ALEXANDER ,  HEPLER EDWARD L ,  KOCH MICHAEL ,  HACKETT WILLIAM C ,  BASS DAVID S

IPC: H04B1/709 ,  H04B15/00 ,  H04B1/10 ,  H04B1/707 ,  H04B7/04 ,  H04B7/08 ,  H04B7/216 ,  H04B7/26 ,  H04L27/06 ,  H04Q7/30

Abstract: A NODE-B/BASE STATION COMPRISES A PLURALITY OF ANTENNA (28,90) FOR RECEIVING USER SIGNALS AND A PATH SEARCHER. THE PATH SEARCHER COMPRISES A SET OF CORRELATORS (34) .EACH CORRELATOR OF THE SET OF CORRELATORS (34) CORRELATES AN INPUTTED USER CODE WITH AN INPUTTED ANTENNA OUTPUT. AN ANTENNA CONTROLLER (30) SELECTIVELY COUPLES AN OUTPUT OF ONE OF THE PLURALITY OF ANTENNAS (34) TO AN INPUT OF EACH.

公开(公告)号：CA2663932A1

公开(公告)日：2008-02-28

申请号：CA2663932

申请日：2007-08-20

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ELDAD ,  MARINIER PAUL ,  REZNIK ALEXANDER ,  GRANDHI SUDHEER A ,  CAVE CHRISTOPHER ,  TERRY STEPHEN E

IPC: H04L1/18

Abstract: In a wireless communication system including at least one wireless transm it/receive unit (WTRU) and at least one Node-B (NB), an activation or deacti vation state is determined for each of a plurality of HARQ processes. A sign al that includes the activation or deactivation state for each of the HARQ p rocesses is transmitted to the WTRU. In response to receiving the signal, th e WTRU activates or deactivates a particular HARQ process in accordance with the activation or deactivation state for each of the HARQ processes contain ed in the received signal. The activation of HARQ processes is considered fo r non-scheduled transmissions.

公开(公告)号：DE60316957D1

公开(公告)日：2007-11-29

申请号：DE60316957

申请日：2003-04-11

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JOHN DAVID ,  BERGHIUS TIMOTHY ,  MEYER JAN ,  BOHNHOFF PETER ,  REZNIK ALEXANDER ,  HEPLER EDWARD L ,  KOCH MICHAEL ,  HACKETT WILLIAM C ,  BASS DAVID S ,  FERRANTE STEVEN

IPC: H04B1/709 ,  H04B1/10 ,  H04B1/707 ,  H04B7/04 ,  H04B7/08 ,  H04B7/216 ,  H04B7/26 ,  H04L27/06 ,  H04Q7/30

公开(公告)号：DE60311657T2

公开(公告)日：2007-11-22

申请号：DE60311657

申请日：2003-06-23

Applicant: INTERDIGITAL TECH CORP

Inventor： KIM YOUNGLOK ,  PAN JUNG-LIN ,  ZEIRA ARIELA ,  REZNIK ALEXANDER

IPC: H04B1/69

Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.

公开(公告)号：NO20074706L

公开(公告)日：2007-11-13

申请号：NO20074706

申请日：2007-09-14

Applicant: INTERDIGITAL TECH CORP

Inventor： KAEWELL JR JOHN DAVID ,  REZNIK ALEXANDER ,  DIFAZIO ROBERT A ,  BECKER PETER EDWARD ,  LI BIN ,  PAN KYLE JUNG-LIN

IPC: H04B7/005

Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

公开(公告)号：DE60316413D1

公开(公告)日：2007-10-31

申请号：DE60316413

申请日：2003-02-05

Applicant: INTERDIGITAL TECH CORP

Inventor： GRIECO DONALD M ,  OH HYUN SEOK ,  REZNIK ALEXANDER

IPC: H04B1/7117 ,  H04B1/16 ,  H04B1/707 ,  H04B7/02 ,  H04B7/26

Abstract: The present invention is directed to an improved telecommunication receiver for receiving wireless multi-path communication signals. A novel RAKE receiver and a time diverse integration system (fig.1) for the calculation of the relative power of received signal samples are provided (Fat Finger Allocation and Rake Finger Allocation). Preferably, the receiver is embodied in a UE or base station of a CDMA wireless telecommunication system, such as a 3GPP system.

公开(公告)号：NO20074354L

公开(公告)日：2007-10-24

申请号：NO20074354

申请日：2007-08-27

Applicant: INTERDIGITAL TECH CORP

Inventor： REZNIK ALEXANDER ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R ,  BRIANCON ALAIN CHARLES LOUIS ,  STERNBERG GREGORY S ,  SHAH YOGENDRA C ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  YE CHUNXUAN

IPC: H04L9/00 ,  H04L9/20

Abstract: A method and apparatus is used for generating a perfectly random secret key between two or more transceivers in a wireless communication network. In a point-to-point system, both transceivers produce an estimate of the channel impulse response (CIR) based on the received radio signal. The CIR estimation is synchronized and may include error correction and detection. A long secret key of bits is generated from a digitized version of the CIR estimate, from which a perfectly secret encryption key is derived by privacy amplification.

公开(公告)号：MX2007009064A

公开(公告)日：2007-10-02

申请号：MX2007009064

申请日：2006-01-26

Applicant: INTERDIGITAL TECH CORP

Inventor： STERNBERG GREGORY S ,  ZHANG GUODONG ,  CHITRAPU PRABHAKAR R ,  REZNIK ALEXANDER ,  BRIANCON ALAIN CHARLES LOUIS ,  SHAH YOGENDRA C ,  KUMOLUYI AKINLOLU OLORUNTOSI ,  YE CHUNXUAN

IPC: H04L9/00

Abstract: Un metodo y aparato se usa para generar una clave aleatoria perfectamente secreta entre dos o mas transceptores en una red de comunicacion inalambrica. En un sistema de punto a punto, ambos transceptores producen un estimado de la respuesta de impulso de canal (CIR) en base a la radiosenal recibida. La estimacion de CIR se sincroniza y puede incluir la correccion y deteccion de errores. Una clave secreta larga de bits se genera a partir de una version digitalizada del estimado de CIR, a partir de la cual se deriva una clave de encriptacion perfectamente secreta por amplificacion de privacidad.