TRANSMISSION OF FEEDBACK INFORMATION IN MULTI-CARRIERS SYSTEMS AND DETERMINATION OF UP-LINK ACK/NACK RESOURCES FROM DOWN-LINK CCE OF THE DOWN-LINK GRANT

    公开(公告)号:CA2759649C

    公开(公告)日:2016-09-20

    申请号:CA2759649

    申请日:2010-05-04

    Applicant: QUALCOMM INC

    Abstract: Techniques for sending feedback information for multi-carrier operation are described. In an aspect, feedback information for data transmissions on multiple downlink carriers may be sent on at least one uplink resource determined based on at least one downlink resource used to send at least one downlink grant for the data transmissions. In another aspect, feedback information for data transmissions on multiple downlink carriers may be sent with reduced or no orthogonal spreading to enable more feedback information to be sent. In yet another aspect, feedback information for data transmissions on multiple downlink carriers may be sent with channel selection. A UE may send a transmission of at least one signal value on at least one resource to convey acknowledgement (ACK) information for data transmissions on multiple downlink carriers. The signal value(s) and resource(s) may be determined based on the content of the ACK information.

    METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS

    公开(公告)号:CA2798528C

    公开(公告)日:2016-09-06

    申请号:CA2798528

    申请日:2008-10-29

    Applicant: QUALCOMM INC

    Abstract: Various methods and systems for efficiently performing the blind decoding of downlink signals are described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible CCE/REs are also described using a first set to secondary and tertiary sets. Various other o'rdering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.

    CHANNEL FEEDBACK BASED ON REFERENCE SIGNAL

    公开(公告)号:CA2786452C

    公开(公告)日:2016-08-09

    申请号:CA2786452

    申请日:2011-01-14

    Applicant: QUALCOMM INC

    Abstract: Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design, a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS, or from more antenna ports than the CRS, or on fewer resource elements than the CRS, or a combination thereof. In one design, a user equipment (UE) determines at least one bandwidth part configured for the UE, with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell, determines channel feedback information for the at least one bandwidth part based on the CSI-RS, sends the channel feedback information to the cell, and receives data transmitted by the cell based on the channel feedback information.

    Diseño del PCFICH para el funcionamiento de múltiples portadoras

    公开(公告)号:ES2576830T3

    公开(公告)日:2016-07-11

    申请号:ES10719170

    申请日:2010-04-30

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento usado en un sistema de comunicaciones inalámbricas (100) que facilita transportar información de control para múltiples portadoras componentes de enlace descendente, comprendiendo el procedimiento: evaluar múltiples portadoras componentes para identificar información del Canal Físico Indicador de Formato de Control, PCFICH, referida a las mismas; y comunicar información del PCFICH que contiene la información referida a cada una de las múltiples portadoras componentes, mediante una portadora componente.

    reportar headroom de potência
    190.
    发明专利

    公开(公告)号:BR112012025180A2

    公开(公告)日:2016-06-21

    申请号:BR112012025180

    申请日:2011-04-05

    Applicant: QUALCOMM INC

    Abstract: reportar headroom de potência. sistemas, métodos, equipamentos e produtos de programa de computador são descritos para informe de reserva dinâmica de potência. um dispositivo móvel pode identificar uma potência de transmissão associada a cada um de um número de canais de potência controlada independentemente em uma ou mpultiplas portadoras configuradas para uso pelo dispositivo móvel. a potência de transmissão pode se relacionar a um canal que é um canal de controle de uplink, e um ou mais canais adicionais que são canais compartilhados de uplink. a potência de transmissão identificada de um canal (por exemplo, o canal de controle de uplink) pode ser uma potência de transmissão virtual, enquanto que outras potências de transmissão idemtificadas podem ser potências de transmissão medidas para transmissões efetivas. as potências de transmissão identificadas podem ser adicionadas, e reserva dinâmica de potência disponível para o dispositivo móvel pode ser calculada utilizando as potências de transmissão acumuladas. o dispositivo móvel pode transmitir um informe de reserva dinâmica de potência para uma estação base.

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