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    Gps satellite signal acquisition assistance system and method in wireless communications network
    1.
    发明专利
    Gps satellite signal acquisition assistance system and method in wireless communications network 审中-公开
    无线通信网络中的GPS卫星信号采集辅助系统和方法

    公开(公告)号：JP2007306588A

    公开(公告)日：2007-11-22

    申请号：JP2007150321

    申请日：2007-06-06

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： VAYANOS ALKINOOS H ,  GAAL PETER ,  STEIN JEREMY M ,  AGASHE PARAG A ,  FERNANDEZ-CORBATON IVAN JESUS ,  SOLIMAN SAMIR S

    IPC: H04Q7/34 ,  G01S1/00 ,  G01S19/05 ,  G01S19/25 ,  H04B1/707

    CPC classification number: G01S19/05 ,  G01S19/256 ,  H04B2201/70715

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for shortening the time needed to fix the position of an integrated GPS/wireless terminal unit in acquiring GPS satellite signals from the GPS satellite constellation.
    SOLUTION: The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于缩短固定GPS /无线终端单元在从GPS卫星星座获取GPS卫星信号的位置所需的时间的系统和方法。 解决方案：本发明包括一种缩小PN码相位搜索的方法。 也就是说，通过考虑相对于GPS时间的地理位置和时间延迟的变量，系统和方法产生窄的码相搜索范围，使得终端单元能够更快地获取和跟踪所需的GPS卫星，从而更多地 快速向请求实体提供准确的位置信息。 版权所有（C）2008，JPO＆INPIT

    Señalización de información de potencia para transmisión MIMO en un sistema de comunicación inalámbrica
    2.
    发明专利
    Señalización de información de potencia para transmisión MIMO en un sistema de comunicación inalámbrica 未知

    公开(公告)号：ES2640569T3

    公开(公告)日：2017-11-03

    申请号：ES09165095

    申请日：2008-01-10

    Applicant: QUALCOMM INC

    Inventor： FERNANDEZ-CORBATON IVAN JESUS ,  BLANZ JOSEF

    IPC: H04W52/34 ,  H04B1/707 ,  H04J13/00

    Abstract: Un aparato (120) de comunicación inalámbrica, que comprende: medios (254) para recibir información de potencia desde un Nodo B; medios (268) para determinar una potencia por código de canalización para un número designado de códigos de canalización en función de la información de potencia; medios (268) para determinar al menos un índice de indicador de calidad de canal, CQI, para al menos un bloque de transporte en función de la potencia por código de canalización; y medios (254) para enviar el al menos un índice CQI al Nodo B; caracterizado por que los medios para determinar la potencia por código de canalización comprenden medios para obtener un desfase de potencia a partir de la información de potencia, medios para determinar la potencia recibida de un canal de datos en función del desfase de potencia y de la potencia recibida de un canal piloto, y medios para determinar la potencia por código de canalización en función de la potencia recibida del canal de datos y del número designado de códigos de canalización.

    seleção de taxa para um sistema ofdm
    4.
    发明专利
    seleção de taxa para um sistema ofdm 未知

    公开(公告)号：BRPI0214312B1

    公开(公告)日：2016-07-12

    申请号：BR0214312

    申请日：2002-11-20

    Applicant: QUALCOMM INC

    Inventor： JALALI AHMAD ,  FERNANDEZ-CORBATON IVAN JESUS ,  KADOUS TAMER

    IPC: H04L27/26 ,  H04L1/00

    Abstract: "seleção de taxa para um sistema ofdm". a taxa de dados máxima que pode ser confiavelmente transmitida através de um dado canal de múltiplas trajetórias (não plano) usando transmissão ofdm é determinada com base em uma medida para um canal equivalente (plano). para o dado canal de múltiplas trajetórias e uma taxa específica (a qual pode ser indicativa de uma taxa de dados, esquema de modulação e taxa de codificação específicos), a medida é inicialmente derivada a partir de uma taxa de dados equivalente e do esquema de modulação específico. a seguir é determinada uma snr limite necessária para transmitir com confiança a taxa de dados específica usando-se o esquema de modulação e taxa de codificação específicos. a taxa específica é considerada como sendo suportada pelo canal de múltiplas trajetórias caso a medida seja maior ou igual à snr limite. uma transmissão incremental é usada para compensar erros na taxa de dados determinada.

    7.
    发明专利
    未知

    公开(公告)号：AT400150T

    公开(公告)日：2008-07-15

    申请号：AT04812862

    申请日：2004-12-03

    Applicant: QUALCOMM INC

    Inventor： FERNANDEZ-CORBATON IVAN JESUS ,  JAYARAMAN SRIKANT ,  SWEET CHARLES WHEELER

    IPC: H04W72/08

    Abstract: Systems and methods for adaptively allocating resources between a dedicated reference signal and a traffic signal are disclosed. In an exemplary embodiment, a wireless communication system 100 includes a base station 404. The base station 404 includes a receiver 428 that receives a quality metric 432 from a remote station 106. The quality metric 432 indicates the quality of a signal transmitted from the base station 404 and received by the remote station 106. The base station 404 also includes a resource allocation component 434 that uses the quality metric 432 to allocate a resource between the traffic signal 422 and the dedicated reference signal 418. The base station 404 also includes a transmitter 426 that transmits the traffic signal 422 and the dedicated reference signal 418 to the remote station 106.

    Rate control for multi-channel communication systems
    8.
    发明专利
    Rate control for multi-channel communication systems 未知

    公开(公告)号：NZ537351A

    公开(公告)日：2006-06-30

    申请号：NZ53735103

    申请日：2003-06-20

    Applicant: QUALCOMM INC

    Inventor： KADOUS TAMER ,  FERNANDEZ-CORBATON IVAN JESUS

    IPC: H04B7/005 ,  H04B7/06 ,  H04J11/00 ,  H04J99/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/20 ,  H04L12/56 ,  H04Q1/00 ,  H04W24/00 ,  H04W28/22 ,  H04W52/26 ,  H04Q7/20

    Abstract: Techniques to determine a set of rates for a set of data streams to be transmitted in a multi-channel communication system are disclosed. A group of transmission channels to be used for each data stream is initially identified. An equivalent system for each group is then defined to have an additive white Gaussian noise (or flat) channel and a spectral efficiency equal to the average spectral efficiency of the transmission channels in the group. A metric for each group is then derived based on the associated equivalent system, e.g., set to the SNR needed by the equivalent system to support the average spectral efficiency. A rate for each data stream is then determined based on the metric associated with the data stream. The rate is deemed to be supported by the communication system if the SNR required to support the data rate by the communication system is less than or equal to the metric.

    10.
    发明专利
    未知

    公开(公告)号：BR0213986A

    公开(公告)日：2005-04-19

    申请号：BR0213986

    申请日：2002-11-08

    Applicant: QUALCOMM INC

    Inventor： FERNANDEZ-CORBATON IVAN JESUS ,  SMEE JOHN ,  JAYARAMAN SRIKANT

    IPC: H03D7/00 ,  H03D1/00 ,  H03J7/04 ,  H04B1/26 ,  H04B1/707 ,  H04L27/00 ,  H03D7/16

    Abstract: A carrier recovery method and apparatus using multiple stages of carrier frequency recovery are disclosed. A receiver uses multiple frequency generation sources to generate carrier signals used to downconvert a received signal. An analog frequency reference having a wide frequency range and coarse frequency resolution is used in conjunction with a digital frequency reference having a narrow frequency range and fine frequency resolution. The multiple carrier signals are multiplied by a received signal to effect a multi-stage downconversion, resulting in a baseband signal. A frequency tracking module measures the residual frequency error present in the baseband signal. The measured residual frequency error is then used to adjust the frequencies of the carrier signals generated by the multiple frequency generation sources.

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