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347 records (took 0.059 seconds)

    101.
    发明专利
    未知

    公开(公告)号：NO20054617D0

    公开(公告)日：2005-10-06

    申请号：NO20054617

    申请日：2005-10-06

    Applicant: INTERDIGITAL TECH CORP

    Inventor： REZNIK ALEXANDER ,  SHAH YOGENDRA

    IPC: H04B1/707 ,  H04B

    Abstract: A wireless communication method and system for assigning multi-paths to Rake receiver fingers. A Rake finger assignment database is established in which multi-path signals are categorized into a verified group and an unverified group. Each multi-path is assigned to an individual bin in the database. Each bin includes a pilot phase data field, an antenna data field, a code data field, an averaged signal strength data field, an assigned flag data field, a verification flag data field, an update flag data field, an assigned Rake finger number data field and an assignment time counter data field. The multi-path signals in the verified group are further categorized into an assigned subgroup and an unassigned subgroup. During a measurement interval, each of a plurality of newly measured multi-path signals is compared to the multi-path signals in the database and is processed accordingly.

    SISTEMAS DE COMUNICACION INALAMBRICA QUE DETECTA DATOS.
    102.
    发明专利
    SISTEMAS DE COMUNICACION INALAMBRICA QUE DETECTA DATOS. 未知

    公开(公告)号：AR044904A1

    公开(公告)日：2005-10-05

    申请号：ARP040102224

    申请日：2004-06-25

    Applicant: INTERDIGITAL TECH CORP

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

    IPC: H03D1/04 ,  H04B20060101 ,  H04B1/707 ,  H04L25/03 ,  H04B1/38 ,  H04L25/08 ,  H04J13/00

    Abstract: La presente tiene muchos aspectos. Un aspecto del presente es realizar ecualización utilizando un procedimiento de ventana deslizante. Un segundo aspecto vuelve a utilizar información derivada de cada ventana para su uso por parte de una ventana subsiguiente. Un tercer aspecto utiliza un procedimiento basado en transformada de Fourier discreta para la ecualización. Un cuarto aspecto se refiere al manejo de sobremuestreo de las señales recibidas y respuestas de canal. Un quinto aspecto se refiere al manejo de antenas de recepción múltiples. Una sexta forma de realización se refiere al manejo tanto de sobre-muestreo como de antenas de recepción múltiples.

    DETECCION DE DATOS PARA CODIGOS CON FACTORES DE DISTRIBUCION NO UNIFORMES.
    105.
    发明专利
    DETECCION DE DATOS PARA CODIGOS CON FACTORES DE DISTRIBUCION NO UNIFORMES. 未知

    公开(公告)号：MXPA05000077A

    公开(公告)日：2005-04-08

    申请号：MXPA05000077

    申请日：2003-06-23

    Applicant: INTERDIGITAL TECH CORP

    Inventor： REZNIK ALEXANDER

    IPC: H04B1/69

    Abstract: Se recibe una pluralidad de senales de comunicacion. Cada senal de comunicacion tiene un codigo asociado. Al menos dos de las senales de comunicacion tienen un factor de distribucion diferente. Los codigos asociados tienen un periodo de codigo de perturbacion. Una matriz de respuesta total del sistema tiene bloques. Cada bloque tiene una dimension de una longitud M y otra dimension de otra longitud basada en parte de M y en el factor de distribucion de cada comunicacion. M esta basada en el periodo de codigo de perturbacion. Los datos de la pluralidad de senales de comunicacion recibidas se reciben usando la matriz de respuesta del sistema construida.

    106.
    发明专利
    未知

    公开(公告)号：NO20050213L

    公开(公告)日：2005-03-30

    申请号：NO20050213

    申请日：2005-01-13

    Applicant: INTERDIGITAL TECH CORP

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

    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.

    107.
    发明专利
    未知

    公开(公告)号：DE60017424D1

    公开(公告)日：2005-02-17

    申请号：DE60017424

    申请日：2000-02-02

    Applicant: INTERDIGITAL TECH CORP

    Inventor： REZNIK ALEXANDER ,  LUBECKI J ,  ZEIRA ARIELA

    IPC: H04B1/707

    Abstract: A multiuser detector method and receiver that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser receiver is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The receiver and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention when used in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

    HIGH PERFORMANCE WIRELESS RECEIVER WITH CLUSTER MULTIPATH INTERFERENCE SUPPRESSION CIRCUIT
    108.
    发明专利
    HIGH PERFORMANCE WIRELESS RECEIVER WITH CLUSTER MULTIPATH INTERFERENCE SUPPRESSION CIRCUIT 未知

    公开(公告)号：CA2532262A1

    公开(公告)日：2005-01-27

    申请号：CA2532262

    申请日：2004-07-13

    Applicant: INTERDIGITAL TECH CORP

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

    IPC: H04B1/00 ,  H04B1/7115 ,  H04L25/03 ,  H04Q20060101

    Abstract: A receiver which suppresses inter-cluster multipath interference by processing an impulse channel response consisting of two multipath clusters, each cluster having groups of signals with multiple delays. In one embodiment, the receiver includes a single antenna and parallel-connected delay units used to align the groups of signals before being input into respective sliding window equalizers. The outputs of the equalizers are combined at chip level via a combiner which provides a single output. In another embodiment, a cluster multipath interference suppression (CMIS) circuit is incorporated into the receiver. The CMIS circuit includes a hard decision unit and a plurality of signal regeneration units to generate replicas of the multipath clusters. The replicas are subtracted from the respective outputs of the delay units and the results are input to the respective sliding window equalizers. In another embodiment, multiple antennas are used to receive and process the clusters.

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