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    DETECCION DE DATOS PARA CODIGOS CON FACTORES DE ENSANCHAMIENTO NO UNIFORME.
    91.
    发明专利
    DETECCION DE DATOS PARA CODIGOS CON FACTORES DE ENSANCHAMIENTO NO UNIFORME. 未知

    公开(公告)号：ES2279128T3

    公开(公告)日：2007-08-16

    申请号：ES03739284

    申请日：2003-06-23

    Applicant: INTERDIGITAL TECH CORP

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

    IPC: H04B1/69

    Abstract: Un método para estimar simultáneamente los datos transmitidos en un sistema de comunicación de espectro ensanchado, usando diferentes factores de ensanchamiento, caracterizado el método por las operaciones de: recibir una pluralidad de señales de comunicación (30), teniendo cada señal de comunicación un código asociado, teniendo al menos dos de las señales de comunicación un factor diferente de ensanchamiento, teniendo los códigos asociados un período del código de aleatorización; construir una matriz de respuesta total del sistema con bloques que comprenden columnas correspondientes a símbolos de datos en las señales de comunicación, formándose cada bloque por la agrupación de dichas columnas, basándose en una cantidad M que es un múltiplo común del período del código de aleatorización y de un factor máximo de ensanchamiento de los códigos de ensanchamiento del sistema de comunicación, teniendo cada bloque varias filas que se basan, en parte, en M y en una respuesta de impulso del sistemade comunicación, y varias columnas que son una suma de cocientes, siendo cada cociente, M dividida por el factor de ensanchamiento (100) de la comunicación, estando dispuestos los bloques de manera que la primera columna en cada bloque está M filas más abajo que la primera columna en el bloque (102) anterior; formar una aproximación circulante de una matriz de correlación del sistema, usando la matriz de respuesta total del sistema, la aproximación circulante y un enfoque de la transformada rápida de Fourier de bloques, para estimar los datos de la pluralidad recibida de señales de comunicación (104).

    PROTOCOL ENGINE FOR PROCESSING DATA IN A WIRELESS TRANSMIT/RECEIVE UNIT
    93.
    发明专利
    PROTOCOL ENGINE FOR PROCESSING DATA IN A WIRELESS TRANSMIT/RECEIVE UNIT 未知

    公开(公告)号：CA2613426A1

    公开(公告)日：2007-01-11

    申请号：CA2613426

    申请日：2006-06-27

    Applicant: INTERDIGITAL TECH CORP

    Inventor： REZNIK ALEXANDER ,  GAZDA ROBERT G ,  HEPLER EDWARD L

    IPC: H04J11/00 ,  H04L49/901 ,  H04W88/02

    Abstract: A protocol engine (PE) for processing data within a protocol stack in a wireless transmit/receive unit (WTRU) is disclosed. The protocol stack executes decision and control operations. The data processing and re- formatting which was performed in a conventional protocol stack is removed from the protocol stack and performed by the PE. The protocol stack issues a control word for processing data and the PE processes the data based on the control word. Preferably, the WTRU includes a shared memory and a second memory. The shared memory is used as a data block place holder to transfer t he data amongst processing entities. For transmit processing, the PE retrieves source data from the second memory and processed the data while moving the data to the shared memory based on the control word. For receive processing, the PE retrieves received data from the shared memory and processes it while moving the data to the second memory.

    94.
    发明专利
    未知

    公开(公告)号：AT335324T

    公开(公告)日：2006-08-15

    申请号：AT03760273

    申请日：2003-06-11

    Applicant: INTERDIGITAL TECH CORP

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

    IPC: H04B1/7103 ,  H04B1/707 ,  H04B7/155 ,  H04J13/02

    Abstract: A method for the simultaneous reception of data from multiple sources having different spreading factors. A plurality of transmission response matrices are generated and grouped together for equal spreading factors. A plurality of spreading factor group matrices are assembled. A base matrix is formed based upon the spreading factor group matrix having a lowest spreading factor. An additional spreading factor group matrix is selected for consideration. Column placement reference index for the base matrix is derived. A reference location for the base matrix is derived. A column set from the selected spreading factor group matrix is derived. The column set is inserted into the base matrix. A total transmission response matrix is assembled.

    97.
    发明专利
    未知

    公开(公告)号：DE60017424T2

    公开(公告)日：2005-12-29

    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.

    99.
    发明专利
    未知

    公开(公告)号：NO20054617L

    公开(公告)日：2005-11-02

    申请号：NO20054617

    申请日：2005-10-06

    Applicant: INTERDIGITAL TECH CORP

    Inventor： REZNIK ALEXANDER ,  SHAH YOGENDRA

    IPC: H04B1/707 ,  H04B7/00

    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.

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