LOCK DETECTION FOR MULTIPATH WIRELESS RECEIVER

    公开(公告)号:CA2354706C

    公开(公告)日:2006-01-31

    申请号:CA2354706

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Walsh-code symbols determines which of fingers (402, 410) have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units (404, 412). The actual signals are combined in combiner (408). A maximum determiner (416 ) determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detector s (406, 414) use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    3.
    发明专利
    未知

    公开(公告)号:AT308163T

    公开(公告)日:2005-11-15

    申请号:AT99964215

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    Lock detection for multipath wireless receiver

    公开(公告)号:AU766145B2

    公开(公告)日:2003-10-09

    申请号:AU2050200

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    METHOD AND APPARATUS FOR DECODING MULTIPATH SIGNALS

    公开(公告)号:HK1041123A1

    公开(公告)日:2002-06-28

    申请号:HK02102433

    申请日:2002-04-02

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    Lock detection for multipath wireless receiver

    公开(公告)号:AU2050200A

    公开(公告)日:2000-06-26

    申请号:AU2050200

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    7.
    发明专利
    未知

    公开(公告)号:BR9916106A

    公开(公告)日:2001-12-18

    申请号:BR9916106

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    8.
    发明专利
    未知

    公开(公告)号:NO20012829D0

    公开(公告)日:2001-06-08

    申请号:NO20012829

    申请日:2001-06-08

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    9.
    发明专利
    未知

    公开(公告)号:NO324203B1

    公开(公告)日:2007-09-10

    申请号:NO20012829

    申请日:2001-06-08

    Applicant: QUALCOMM INC

    Abstract: A wireless receiver receiving multipath Wash-code symbols determines which of fingers 402, 410 have locked on a signal. Measurements of the correlation energies between the received signal and all possible symbols are stored in energy storage units 404, 412. The actual signals are combined in combiner 408. A maximum determiner 416 determines the most likely combined symbol, and an index for this symbol is fed back to the energy storage units. Lock detectors 406, 414 use the measurement for this fed-back symbol to determine whether the finger has locked onto a path. This determination is used to decide whether the next signal detected by that finger should be applied to the combiner.

    DETECCION DE ENGANCHE PARA RECEPTOR INALAMBRICO DE TRAYECTORIAS MULTIPLES.

    公开(公告)号:ES2251253T3

    公开(公告)日:2006-04-16

    申请号:ES99964215

    申请日:1999-12-09

    Applicant: QUALCOMM INC

    Abstract: Receptor adaptado para recibir señales de trayectorias múltiples que incluye una pluralidad de ramas, estando cada una de ellas adaptada para: a)demodular por separado la señal recibida actualmente desde cada trayectoria separada; y b)medir la energía de comparación entre la señal recibida actualmente por la rama y cada símbolo de canal posible de una biblioteca de símbolos de canales; caracterizado porque comprende: c)una pluralidad de unidades de almacenamiento de energía, en la que cada unidad de almacenamiento de energía está asociada a una rama y está adaptada para: i)almacenar la medición de la energía de comparación entre cada símbolo de canal posible y la señal recibida anteriormente por dicha rama; ii) recibir un índice del combinador indicado a continuación, determinando el índice de forma exclusiva un símbolo de canal posible; iii) decidir si la energía de comparación entre el símbolo de canal determinado y la señal recibida anteriormente es significativa; y iv) aplicar una versión escalada de la señal recibida actualmente al combinador si y solo si la energía de comparación es significativa; y d)un combinador que está adaptado para: i)combinar las versiones escaladas de las señales recibidas actualmente en una señal combinada; ii) medir la energía de comparación entre la señal combinada y cada símbolo de canal posible de la biblioteca de símbolos de canales; iii) determinar el índice para el símbolo de canal que proporciona la energía de comparación máxima con la señal combinada; iv) proporcionar como retroalimentación el índice a las unidades de almacenamiento de energía; y v)transmitir el índice para un procesamiento adicional.

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