11.
    发明专利
    未知

    公开(公告)号:BRPI0808990A2

    公开(公告)日:2014-09-09

    申请号:BRPI0808990

    申请日:2008-03-17

    Applicant: QUALCOMM INC

    Abstract: Systems and methodologies are described that facilitate handing over mobile device communications in a wireless network from a source base station to a target base station without using a random access channel (RACH). In this regard, the source base station can request shared data bandwidth resources from the target base station on behalf of the mobile device and assign the resources to the mobile device. The mobile device can calculate a timing difference between the source and target base stations and can handover communications by transmitting over the shared data bandwidth using the timing difference to generally provide correct timing for the transmission. To this end, the target base station can have transmission time intervals where it allows transmitting with an extended cyclic prefix to ensure more reliable handover for the mobile device.

    COMPUTATION OF CHANNEL STATE FEEDBACK IN SYSTEMS USING COMMON REFERENCE SIGNAL INTERFERENCE CANCELATION

    公开(公告)号:CA2884502A1

    公开(公告)日:2011-08-25

    申请号:CA2884502

    申请日:2011-02-18

    Applicant: QUALCOMM INC

    Abstract: When enabled with common reference signal interference cancelation, a user equipment (UE) may still compute a channel state feedback value with consideration of any canceled interfering neighboring signals. When the neighboring cells are determined to be transmitting data during the time for which the channel state feedback value is being computed, the UE is able to derive the channel state feedback value considering those canceled interfering signals. The UE determines whether each neighboring cell is transmitting during the designated time either by obtaining signals that indicate the transmission schedule of the neighboring cells or by detecting the transmission schedule, such as based on the power class of the neighboring cells. If the UE determines that the neighboring cells are transmitting data during this time period, the UE will compute the channel state feedback value including consideration of the canceled interfering signals.

    METHOD AND APPARATUS FOR WIRELESS MULTI-CARRIER COMMUNICATIONS

    公开(公告)号:CA2608658C

    公开(公告)日:2015-06-16

    申请号:CA2608658

    申请日:2006-05-17

    Applicant: QUALCOMM INC

    Abstract: A Global System for Mobile Communications (GSM) network supports multi-carrier operation on the downlink and/or uplink for a mobile station. The mobile station receives an assignment of multiple carriers for a first link in the GSM network, receives an assignment of at least one carrier for a second link in the GSM network, and exchanges data with the GSM network via the multiple carriers for the first link and the at least one carrier for the second link. The first link may be the downlink and the second link may be the uplink, or vice versa. The mobile station may receive data on multiple carriers at the same time for multi-carrier operation on the downlink. The mobile station may transmit data on multiple carriers at the same time for multi-carrier operation on the uplink.

    METODO Y APARATO PARA COMUNICACIONES INALAMBRICAS DE PORTADORA MULTIPLE.

    公开(公告)号:MX2007014368A

    公开(公告)日:2008-02-06

    申请号:MX2007014368

    申请日:2006-05-17

    Applicant: QUALCOMM INC

    Abstract: Una red de Sistema Global para Comunicaciones Moviles (GSM) soporta operacion de portadora multiple en el enlace descendente y/o enlace ascendente para una estacion movil; la estacion movil recibe una asignacion de multiples portadoras para un primer enlace en la red GSM, recibe una asignacion por lo menos de una portadora para un segundo enlace en la red GSM, e intercambia datos con la red GSM a traves de las multiples portadoras para el primer enlace y por lo menos una portadora para el segundo enlace; el primer enlace puede ser el enlace descendente y el segundo enlace puede ser el enlace ascendente, o viceversa; la estacion movil puede recibir datos en multiples portadoras al mismo tiempo para operacion de portadora multiple en el enlace descendente; la estacion movil puede transmitir datos en multiples portadoras al mismo tiempo para operacion de portadora multiple en el enlace ascendente.

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