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161.
公开(公告)号:AR039290A1
公开(公告)日:2005-02-16
申请号:ARP030101272
申请日:2003-04-11
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN DAVID JR , BERGHIUS TIMOTHY , MEYER JAN , BOHNHOFF PETER , REZNIK ALEXANDER , HEPLER EDWARD L , HACKETT WILLIAM C , KOCH MICHAEL , DAVID S BASS
Abstract: Un receptor de Nodo B/estación base comprende al menos una antena para recibir senales. Cada finger de un grupo de fingers Rake reconfigurable recupera un componente de trayectoria múltiple de un usuario y se le asigna un código del usuario, una fase de código del componente de trayectoria múltiple y una antena de al menos una antena. Una interfase de grupo de finger Rake/antena, le provee a cada finger del grupo Rake, una salida de la antena asignada a ese finger Rake. Un combinador combina los componentes de trayectoria múltiple recuperados para que un usuario produzca datos del usuario.
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公开(公告)号:DE60012944D1
公开(公告)日:2004-09-16
申请号:DE60012944
申请日:2000-09-11
Applicant: INTERDIGITAL TECH CORP
Inventor: MESECHER K , REZNIK ALEXANDER , GRIECO DONALD , CHEUNG GARY
IPC: H04B1/712 , H04B7/06 , H04B7/08 , H04B7/216 , H04B7/26 , H04J13/00 , H04M1/725 , H04Q7/38 , H04B1/707
Abstract: A receiving device comprising circuitry configured to receive a signal including pilot bits transmitted by a plurality of antennas; wherein the received signal includes data for a single user that was combined with different sequences producing a plurality of combined data sequences; wherein antenna-specific weights for the plurality of antennas are applied to each of the combined data sequences and the antenna specific weights are applied to pilot bits added with the combined data sequences; wherein the received signal includes the pilot bits for each of the plurality of antennas; and wherein the pilot bits for each antenna have a different sequence for that antenna; the circuitry is further configured to derive preferred weights for the received signal based on the pilot bits for each antenna; the circuitry is further configured to recover data for the single user from each of the combined data sequences; and the circuitry is further configured to combine data from the recovered data for the single user from each of the different sequences.
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公开(公告)号:CA2516946A1
公开(公告)日:2004-09-16
申请号:CA2516946
申请日:2004-03-02
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , LI BIN , YANG RUI , ZEIRA ARIELA
Abstract: A sliding window based data estimation is performed. An error is introduced in the data estimation due to the communication model modeling the relationship between the transmitted and received signals. To compensate for an error in the estimated data, the data that was estimated in a previous sliding window step or terms that would otherwise be truncated as noise are used. These techniques allow for the data to be truncated prior to further processing reducing the data of the window.
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164.
公开(公告)号:AU2003287674A1
公开(公告)日:2004-06-18
申请号:AU2003287674
申请日:2003-11-17
Applicant: INTERDIGITAL TECH CORP
Inventor: LI BIN , REZNIK ALEXANDER
Abstract: A channel estimation method which reduces the strain on resources of a Rake receiver using a complex weight gain (CWG) algorithm. In one embodiment, a non-adaptive algorithm is used to average blocks of pilot symbols from several slots. In another embodiment, an adaptive algorithm implements sliding window averaging or a recursive filter. Using a CWG algorithm reduces the memory and processor requirements of the Rake receiver.
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公开(公告)号:HK1054824A1
公开(公告)日:2003-12-12
申请号:HK03106995
申请日:2003-09-27
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER
IPC: H04B1/707 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B1/7107 , H04B3/06 , H04B7/005 , H04B
Abstract: A method and wireless communication apparatus for receiving a plurality of communication signals transmitted in a wireless code division multiple access format. A channel response for each received communication signal is estimated. A system response matrix using codes and the channel responses of the received communication signals is constructed. The system response matrix is used in connection with matched filtering the received communication signals and to produce an objective matrix. The filtered communication signals are processed in a cancellation feedback loop to produce a set of symbols of the received communications including iterative processing with an interference cancellation matrix and processing with a feedback interference construction matrix. Preferably, the objective matrix is functionally related to the interference cancellation matrix and the feedback interference construction matrix.
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公开(公告)号:AU2003224918A8
公开(公告)日:2003-10-27
申请号:AU2003224918
申请日:2003-04-11
Applicant: INTERDIGITAL TECH CORP
Inventor: HEPLER EDWARD L , BERGHIUS TOMOTHY , BOHNHOFF PETER , HACKETT WILLIAM C , KAEWELL JOHN DAVID JR , MEYER JAN , KOCH MICHAEL , REZNIK ALEXANDER , BASS DAVID S
Abstract: A Node-B/base station receiver comprises at least one antenna for receiving signals. Each finger of a pool of reconfigurable Rake fingers recovers a multipath component of a user and is assigned a code of the user, a code phase of the multipath component and an antenna of the at least one antenna. An antenna/Rake finger pool interface provides each finger of the Rake pool an output of the antenna assigned to that Rake finger. A combiner combines the recovered multipath components for a user to produce data of the user.
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公开(公告)号:AU2003212428A1
公开(公告)日:2003-09-16
申请号:AU2003212428
申请日:2003-02-26
Applicant: INTERDIGITAL TECH CORP
Inventor: KAEWELL JOHN DAVID JR , REZNIK ALEXANDER , MEYER JAN , BOHNHOFF PETER
IPC: H04B1/7073 , H04L7/00 , H04W74/08 , H04J13/04
Abstract: Apparatus and method for correlating a received communication of a known sequence over a wireless channel. Processing at the required higher sampling rate is achieved through the use of a finite impulse response (FIR) filter (24) having a small number of taps for interpolating samples. This reduces hardware requirement by as much as one-half that of conventional techniques based on over-sampling the received signal, while obtaining amplitude degradation which is no worse than experienced when employing conventional techniques.
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公开(公告)号:AU2003209007A1
公开(公告)日:2003-09-04
申请号:AU2003209007
申请日:2003-02-05
Applicant: INTERDIGITAL TECH CORP
Inventor: REZNIK ALEXANDER , GRIECO DONALD M , OH HYUN SEOK
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.
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公开(公告)号:MXPA02007499A
公开(公告)日:2003-04-14
申请号:MXPA02007499
申请日:2001-02-02
Applicant: INTERDIGITAL TECH CORP
Inventor: 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: Se describe un sistema de comunicacion bidireccional de division de tiempo, inalambrico, que utiliza acceso multiple de division de codigo, que tiene una estacion base y equipos de usuario. El sistema se comunica utilizando rafagas de comunicacion. Cada rafaga de comunicacion tiene un codigo de canalizacion unico y un codigo midamble. Cada codigo midamble es trazado en mapa a un ajuste de al menos un codigo de canalizacion. Para cada rafaga de comunicacion a ser transmitida en una ranura de tiempo desde la estacion base, se determina el codigo midamble trazado en mapa al codigo de canalizacion de las rafagas. Las rafagas de comunicacion son generadas y transmitidas en la ranura de tiempo. Cada rafaga tiene el codigo midamble determinado para su codigo de canalizacion. El equipo del usuario recibe las rafagas y determina cada codigo midamble recibido. El equipo del usuario determina los codigos de canalizacion de las rafagas de comunicacion transmitidas con base en parte en un resultado de la determinacion de cada codigo midamble recibido.
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公开(公告)号:NO20023623A
公开(公告)日:2002-09-17
申请号:NO20023623
申请日:2002-07-30
Applicant: INTERDIGITAL TECH CORP
Inventor: ZEIRA ARIELA , ZEIRA ELDAD , REZNIK ALEXANDER , TERRY STEPHEN E
IPC: H04B1/707 , H04B1/7073 , H04B1/7093 , H04B1/7103 , H04B1/7105 , H04B7/00 , H04J3/00 , H04J11/00 , H04J13/00 , H04J13/16 , H04Q7/38
CPC classification number: H04B1/7103 , H04B1/707 , H04B1/70735 , H04B1/7105 , H04B2001/70935 , H04B2201/70701 , H04B2201/70709 , H04J13/00 , H04J13/16
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