Method and apparatus for increasing the sensitivity of a global positioning satellite receiver

    公开(公告)号:AU6027299A

    公开(公告)日:2000-03-27

    申请号:AU6027299

    申请日:1999-09-02

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus providing enhanced sensitivity for GPS receivers (400, 500, 600, 700) by allowing coherent integration of a correlation over several code periods of a GPS signal in one embodiment, and by performing a time to frequency domain conversion to the output from a correlation processor (507) in a second embodiment. In the case in which coherent integration is performed over several code periods, advantage is taken of the fact that CDMA cellular telephone base stations transmit information that allows the receiver to determine GPS time before beginning a GPS signal acquisition process. The integration can be expanded to include code periods from more than one bit period, if the GPS receiver (400, 500, 600, 700) takes advantage of the fact that known bit patterns are transmitted at particular times within the transmission from a GPS satellite. If no base station is within range, then the output from a correlator (507) that integrates a correlation over one code period is used to generate values that are input to a discrete time domain to frequency domain transform processor (511). The output from the transform processor (511) will indicate the presence of a signal from a particular satellite and the offset between locally generated signal and the received GPS signal.

    Adaptación de parámetros de traspaso

    公开(公告)号:ES2732829T3

    公开(公告)日:2019-11-26

    申请号:ES10700138

    申请日:2010-01-06

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento de comunicación, que comprende: recibir (510, 612) un mensaje de una segunda célula (106, 206) en una primera célula (104, 204), en el que el mensaje indica que un terminal de acceso (102, 202) que restablece una conexión en la segunda célula (106, 206) experimentó un fallo de enlace de radio en la primera célula (104, 204); detectar (512, 614) mediante la primera célula (104, 204) que el terminal de acceso (102, 202) fue traspasado demasiado tarde en base al mensaje recibido; y adaptar (514, 616) mediante la primera célula (104, 204) al menos un parámetro de traspaso en la primera célula en base a la detección.

    MOBILITY MANAGEMENT BASED ON RADIO LINK FAILURE REPORTING

    公开(公告)号:CA2742503C

    公开(公告)日:2018-09-25

    申请号:CA2742503

    申请日:2009-11-16

    Applicant: QUALCOMM INC

    Abstract: A communication node determines that radio link failure occurred during connected state mobility of an access terminal and reports the radio link failure to another communication node. For example, a target access point may determine that radio link failure occurred during handover of an access terminal and send a radio link failure report message to the access point that was previously serving the access terminal or to some other node (e.g., a network node). In the first case, the serving access point may adjust mobility parameters based on this radio link failure information and, optionally, other reported radio link failure information. In the second case, the other node may send a radio link failure report message to the serving access point, or the other node may adjust mobility parameters based on this radio link failure information (and, optionally, other reported radio link failure information) and send the adjusted mobility parameters to the serving access point.

    ACCESS MANAGEMENT FOR WIRELESS COMMUNICATION

    公开(公告)号:MY164923A

    公开(公告)日:2018-02-15

    申请号:MYPI2010001546

    申请日:2008-10-07

    Applicant: QUALCOMM INC

    Abstract: PROVISIONING AND ACCESS CONTROL FOR COMMUNICATION NODES (110) INVOLVES ASSIGNING IDENTIFIERS TO SETS OF NODES (110) WHERE THE IDENTIFIERS MAY BE USED TO CONTROL ACCESS TO RESTRICTED ACCESS NODES THAT PROVIDE CERTAIN SERVICES ONLY TO CERTAIN DEFINED SETS OF NODES (110). IN SOME ASPECTS PROVISIONING A NODE (110) MAY INVOLVE PROVIDING A UNIQUE IDENTIFIER FOR SETS OF ONE OR MORE NODES SUCH AS RESTRICTED ACCESS POINTS (102, 104) AND ACCESS TERMINALS (106, 108) THAT ARE AUTHORIZED TO RECEIVE SERVICE FROM THE RESTRICTED ACCESS POINTS (102, 104). ACCESS CONTROL MAY BE PROVIDED BY OPERATION OF A RESTRICTED ACCESS POINT (102, 104) AND/OR A NETWORK NODE (110). IN SOME ASPECTS, PROVISIONING A NODE (110) INVOLVES PROVIDING A PREFERRED ROAMING LIST FOR THE NODE (110). IN SOME ASPECTS, A NODE (110) MAY BE PROVISIONED WITH A PREFERRED ROAMING LIST THROUGH THE USE OF A BOOTSTRAP BEACON.

    Utilización de códigos de restricción en intentos de conexión a puntos de acceso inalámbrico

    公开(公告)号:ES2652116T3

    公开(公告)日:2018-01-31

    申请号:ES08849141

    申请日:2008-11-13

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (600) para el establecimiento de conexión en una red de comunicación inalámbrica, que comprende: determinar (604) en una estación móvil si está presente un punto de acceso de asociación restringida en una lista mantenida de puntos de acceso de femto accesibles; solicitar (606), mediante la estación móvil, el establecimiento de conexión con el punto de acceso de asociación restringida basándose al menos en parte en la determinación; recibir (608) un rechazo en la estación móvil en respuesta a la solicitud de establecimiento de conexión, comprendiendo el rechazo un código de restricción que indica un motivo del rechazo, en el que el código de restricción es indicativo de una restricción temporal o más permanente; y eliminar el punto de acceso de asociación restringida de la lista mantenida de puntos de acceso de femto accesibles, si el código de restricción indica una restricción más permanente.

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