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    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS
    11.
    发明公开
    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS 有权
    MEHRBENUTZERDETEKTORFÜR变焦SPFITZFATTOREN

    公开(公告)号：EP1525696A4

    公开(公告)日：2005-08-10

    申请号：EP03760273

    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

    CPC classification number: H04B1/71052 ,  H04B1/7105 ,  H04B2201/70703 ,  H04B2201/70705

    Abstract: A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced. A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix has symbol sub-matrices. Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

    Abstract translation: 多个通信信号具有不同的扩展码。 每个通信都有一个包含芯片的相关代码。 对于每个通信的每个码片，产生与脉冲响应卷积的该码片的矢量。 对于每个通信，产生包括码片向量的支持块。 支持块中的许多码片向量基于该通信的扩频因子。 系统响应矩阵被组合。 系统响应矩阵具有符号子矩阵。 每个符号子矩阵包括来自每个通信的支持块。 使用符号响应矩阵检测通信数据。

    ADAPTIVE ALGORITHM FOR A CHOLESKY APPROXIMATION
    13.
    发明公开
    ADAPTIVE ALGORITHM FOR A CHOLESKY APPROXIMATION 审中-公开
    ADAPTIVER算法FÜREINE CHOLESKY-APPRIMIMATION

    公开(公告)号：EP1510020A4

    公开(公告)日：2005-04-27

    申请号：EP03755408

    申请日：2003-05-19

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KIM YOUNGLOK ,  ZEIRA ARIELA

    IPC: G06F17/16 ,  H04B1/7097 ,  H04B1/707

    CPC classification number: H04B1/7105 ,  G06F17/16

    Abstract: Data is to be detected in a wireless communication system. A plurality of communication signals (r) are received. A solution for estimating data (d) of the received communication signals (r) is modeled using a linear system (34) requiring a matrix inversion. Columns or rows (A, and B) of an approximate Cholesky factor are determined. A difference between the determined columns or rows (A, and B) is determined. If the determined difference is less than a threshold, subsequent columns or rows are determined by previous determined columns or rows. The data (d) of received communication signals (r) is estimated using the approximate Cholesky factor.

    Abstract translation: 数据将在无线通信系统中检测。 多个通信信号（r）被接收。 使用需要矩阵求逆的线性系统（34）对用于估计接收到的通信信号（r）的数据（d）的解决方案进行建模。 确定近似Cholesky因子的列或行（A和B）。 确定所确定的列或行（A和B）之间的差异。 如果确定的差值小于阈值，则后续的列或行由先前确定的列或行确定。 接收到的通信信号（r）的数据（d）使用近似Cholesky因子来估计。

    19.
    发明专利
    未知

    公开(公告)号：AT435535T

    公开(公告)日：2009-07-15

    申请号：AT04015676

    申请日：2001-12-05

    Applicant: INTERDIGITAL TECH CORP

    Inventor： KIM YOUNGLOK ,  ZEIRA ARIELA

    IPC: H04L1/06 ,  H04B1/00 ,  H04B1/707 ,  H04B7/06 ,  H04B7/26 ,  H04L25/02 ,  H04Q7/38

    Abstract: A base station, comprising a first channelization device to receive data and spread the data with a first channelization code to produce a first spread data field; a second channelization device to receive the same data as the first channelization device and spread the received data with a second channelization code that is different from the first channelization code to produce a second spread data field; a first training sequence device in communication with the first channelization device, the first training sequence device to combine the first spread data field with a first midamble to produce a first communication burst, the first midamble for estimating a channel impulse response; a second training sequence device in communication with the second channelization device, the second training sequence device to combine the second spread data field with a second midamble to produce a second communication burst, the second midamble for estimating a channel impulse response; a first scrambling device to scramble the first spread data field by a scrambling code associated with the base station; a second scrambling device to scramble the second spread data field by the scrambling code associated with the base station; a first diversity antenna to transmit the first communication burst; and a second diversity antenna to transmit the second communication burst.

    PUESTA A ESCALA USANDO FACTORES DE GANANCIA PARA SU USO EN LA DETECCION DE DATOS PARA SISTEMAS INALAMBRICOS DE COMUNICACION DE ACCESO MULTIPLE POR DIVISION DE CODIGO.
    20.
    发明专利
    PUESTA A ESCALA USANDO FACTORES DE GANANCIA PARA SU USO EN LA DETECCION DE DATOS PARA SISTEMAS INALAMBRICOS DE COMUNICACION DE ACCESO MULTIPLE POR DIVISION DE CODIGO. 未知

    公开(公告)号：ES2306915T3

    公开(公告)日：2008-11-16

    申请号：ES03794437

    申请日：2003-07-09

    Applicant: INTERDIGITAL TECH CORP

    Inventor： PAN JUNG-LIN ,  KIM YOUNGLOK ,  GRIECO DONALD M

    IPC: H04B1/707 ,  H04L25/02 ,  H04Q7/38

    Abstract: Un método de recuperar datos de una pluralidad de comunicaciones transmitidas en un sistema de comunicaciones de acceso múltiple por división de tiempo, comprendiendo el método: recibir las comunicaciones; determinar (72, 78, 84) factores de ganancia para al menos una de las comunicaciones recibidas; y detectar datos de las comunicaciones recibidas usando un factor de escala obtenido a partir de los valores de ganancia determinados, en el que la detección comprende estimar una respuesta de canal y una varianza de ruido de las comunicaciones; estando el método caracterizado porque la detección comprende además: aplicar escala a la varianza de ruido usando un factor de escala, siendo el factor de escala deducido (74, 80, 86) de al menos un factor de ganancia de las comunicaciones recibidas; igualar en canal las comunicaciones recibidas usando la respuesta de canal estimada y la varianza de ruido puesta a escala; y anular la propagación de las comunicaciones recibidas igualadas en canal para recuperar datos de las comunicaciones recibidas.

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