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公开(公告)号:DE69737829D1
公开(公告)日:2007-08-02
申请号:DE69737829
申请日:1997-05-01
Applicant: QUALCOMM INC
Inventor: LEE KUO-CHUN , KARMI GADI , MOHANTY BIBHU , SUTTON TODD R , ZIV NOAM A
Abstract: A method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller determines if sufficient network resources are available to conduct a inter-system soft handoff. If so, the base station controller generates a set of signaling messages that cause call processing resource to be allocated and for the call to be processed at the second cellular system. The base station controller then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit by way of the second cellular system as well as via one or more base stations to which the base station controller is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.
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公开(公告)号:BR9804803A
公开(公告)日:1999-08-17
申请号:BR9804803
申请日:1998-03-31
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
Abstract: First and second data sources transmit a data signal on a data connection and a transmit clock signal on a clock connection. The data signal is clocked into a FIFO resident in the network interface equipment in response to the transmit clock signal, and out of the FIFO to the network in response to a reference clock signal. The FIFO generates a signal indicating how full it is and a local clock generator which generates the transmit clock signal in response to this status indication signal. The first and second data sources hold the data signal and transmit clock signal high for longer than a single period of the reference clock signal when switching between them. The local clock generator alters an average rate of the transmit clock signal in response to the status indication signal from the FIFO in order to keep it half-full.
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公开(公告)号:AU3095895A
公开(公告)日:1996-03-04
申请号:AU3095895
申请日:1995-07-10
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
IPC: H04B1/7075 , H04B1/7077 , H04B1/707
Abstract: A novel an improved method of acquisition in a spread spectrum communication system is presented. In the present invention, a large window of PN chip offset hypotheses are searched and if an energy signal is found that might indicate the presence of the pilot signal having one of the chip offsets of the large search window, then a search of a subset of offset hypotheses, or small window, is searched.
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公开(公告)号:ES2287953T3
公开(公告)日:2007-12-16
申请号:ES97922608
申请日:1997-05-01
Applicant: QUALCOMM INC
Inventor: LEE KUO-CHUN , KARMI GADI , MOHANTY BIBHU , SUTTON TODD R , ZIV NOAM A
Abstract: SE DESCRIBE UN NUEVO Y MEJORADO METODO Y APARATO PARA EJECUTAR UN PROGRAMA INTERSISTEMA RECHAZABLE. DE ACUERDO CON LA PRESENTE INVENCION, CUANDO UN ABONADO PASA DE UN PRIMER SISTEMA CELULAR A UN SEGUNDO SISTEMA CELULAR, UN CONTROLADOR DE ESTACION BASE (20) DETERMINA SE DISPONE DE SUFICIENTES RECURSOS DE RED PARA DIRIGIR UN PROGRAMA INTERSISTEMA RECHAZABLE. EN CASO AFIRMATIVO, EL CONTROLADOR DE ESTACION BASE (20) GENERA UN CONJUNTO DE MENSAJES DE SEÑALIZACION QUE HACE QUE SEA ASIGNADO EL RECURSO QUE PROCESA LA LLAMADA, Y PARA QUE LA LLAMADA SEA PROCESADA EN EL SEGUNDO SISTEMA CELULAR. EL CONTROLADOR DE ESTACION BASE (20) REALIZA A CONTINUACION LA SELECCION DE DATOS Y LA RETRANSMISION DE LOS DATOS PARA LA LLAMADA TRANSMITIENDO LOS DATOS A LA UNIDAD DE ABONADO (28) A TRAVES DEL SEGUNDO SISTEMA CELULAR ASI COMO A TRAVES DE UNA O MAS ESTACIONES BASE A LAS QUE EL CONTROLADOR DE ESTACION BASE (20) ESTA DIRECTAMENTE CONECTADO. LA DETERMINACION EN CUANTO A SI EXISTEN SUFICIENTES RECURSOS DISPONIBLESPARA EJECUTAR EL PROGRAMA RECHAZABLE INTERSISTEMAS SOBRE LA BASE DEL TIPO DE CONEXION QUE EXISTE ENTRE EL PRIMER SISTEMA CELULAR Y EL SEGUNDO SISTEMA CELULAR, EL NUMERO DE LLAMADAS INTER-SISTEMAS QUE ESTAN SIENDO REALIZADAS, Y LA DEL MARCO DE DESVIACION DE LA LLAMADA QUE ESTA PROCESANDO ACTUALMENTE.
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公开(公告)号:AT277458T
公开(公告)日:2004-10-15
申请号:AT95926654
申请日:1995-07-10
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
IPC: H04B1/7075 , H04B1/7077 , H04B1/707
Abstract: A novel an improved method of acquisition in a spread spectrum communication system is presented. In the present invention, a large window of PN chip offset hypotheses are searched and if an energy signal is found that might indicate the presence of the pilot signal having one of the chip offsets of the large search window, then a search of a subset of offset hypotheses, or small window, is searched.
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公开(公告)号:HK1021103A1
公开(公告)日:2000-05-26
申请号:HK99103530
申请日:1999-08-13
Applicant: QUALCOMM INC
Inventor: LEE KUO-CHUN , KARMI GADI , MOHANTY BIBHU , SUTTON TODD R , ZIV NOAM A
Abstract: A method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller determines if sufficient network resources are available to conduct a inter-system soft handoff. If so, the base station controller generates a set of signaling messages that cause call processing resource to be allocated and for the call to be processed at the second cellular system. The base station controller then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit by way of the second cellular system as well as via one or more base stations to which the base station controller is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.
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公开(公告)号:AU6794798A
公开(公告)日:1998-10-22
申请号:AU6794798
申请日:1998-03-31
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
Abstract: First and second data sources transmit a data signal on a data connection and a transmit clock signal on a clock connection. The data signal is clocked into a FIFO resident in the network interface equipment in response to the transmit clock signal, and out of the FIFO to the network in response to a reference clock signal. The FIFO generates a signal indicating how full it is and a local clock generator which generates the transmit clock signal in response to this status indication signal. The first and second data sources hold the data signal and transmit clock signal high for longer than a single period of the reference clock signal when switching between them. The local clock generator alters an average rate of the transmit clock signal in response to the status indication signal from the FIFO in order to keep it half-full.
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公开(公告)号:CA2254817A1
公开(公告)日:1998-10-08
申请号:CA2254817
申请日:1998-03-31
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
Abstract: First and second data sources (106A, 106B) transmit a data signal (TXD) on a data connection and a transmit clock signal (TXC) on a clock connection. The data signal is clocked into a FIFO (226) resident in network interface equipment (110) in response to the transmit clock signal, and out of the FIFO to the network in response to a reference clock signal. The FIFO (226) generates a status signal indicating how full it is and a local clock generator (228) generates the transmit clock signal in response to this status signal. The first and a second data sources (106A, 106B) hold the data signal and transmit clock signal high for longer than a single period of the reference clock signal when switching between them. The local clock generator (228) alters an average rate of the transmit clock signal in response to the status indication signal from the FIFO in order to keep it half-full.
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公开(公告)号:ZA9802772B
公开(公告)日:1998-10-05
申请号:ZA9802772
申请日:1998-04-01
Applicant: QUALCOMM INC
Inventor: SUTTON TODD R
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公开(公告)号:ES2736156T3
公开(公告)日:2019-12-26
申请号:ES17177957
申请日:2012-06-24
Applicant: QUALCOMM INC
Inventor: MATHE LENNART K , MARRA THOMAS DOMENICK , SUTTON TODD R
IPC: H03F1/02
Abstract: Un aparato (150) que comprende: un inductor (162) que funciona para recibir una señal de conmutación y proporcionar una corriente de alimentación; un conmutador (160b) que funciona para detectar una corriente de entrada (Isen) y generar la señal de conmutación para cargar y descargar el inductor para proporcionar la corriente de alimentación, el conmutador (160b) añadiendo un desfase a la corriente de entrada para generar una corriente de alimentación más grande mediante el inductor que sin el desfase un amplificador de envolvente (170a) que funciona para recibir una señal de envolvente y proporcionar una segunda corriente de alimentación (Ienv) en base a la señal de envolvente, en la que una corriente de alimentación total (Ipa) comprende la corriente de alimentación desde el conmutador (160b) y la segunda corriente de alimentación desde el amplificador de envolvente (170a) y en el que además el amplificador de envolvente comprende un primer transistor NMOS (316) y un primer transistor PMOS (314), proporcionando conjuntamente el primer transistor NMOS y el primer transistor PMOS la segunda corriente de alimentación en base a la señal de envolvente; y un convertidor tipo Boost (180) que funciona para recibir una primera tensión de alimentación y proporcionar una tensión de alimentación elevada que tiene una tensión más alta que la primera tensión de alimentación, en la que el amplificador de envolvente funciona selectivamente basándose en la primera tensión de alimentación o en la tensión de alimentación elevada.
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