METHOD, APPARATUS, AND SYSTEM FOR MEDIUM ACCESS CONTROL

    公开(公告)号:HK1096224A1

    公开(公告)日:2007-05-25

    申请号:HK07103107

    申请日:2007-03-22

    Applicant: QUALCOMM INC

    Abstract: Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, an apparatus comprises a first layer for receiving one or more packets from one or more data flows and for generating one or more first layer Protocol Data Units (PDUs) from the one or more packets. In another aspect, a second layer is deployed for generating one or more MAC frames based on the one or more MAC layer PDUs. In another aspect, a MAC frame is deployed for transmitting one or more MAC layer PDUs. The MAC frame may comprise a control channel for transmitting one or more allocations. The MAC frame may comprise one or more traffic segments in accordance with allocations.

    DESCOMPOSICION DEL VALOR PROPIO Y DESCOMPOSICION DEL VALOR SINGULAR DE MATRICES UTILIZANDO LA ROTACION DE JACOBI

    公开(公告)号:AR051497A1

    公开(公告)日:2007-01-17

    申请号:ARP050104809

    申请日:2005-11-16

    Applicant: QUALCOMM INC

    Abstract: Técnicas para descomponer matrices utilizando la rotacion de Jacobi. Multiples iteraciones de la rotacion de Jacobi se llevan a cabo sobre una primera matriz de valores complejos con multiples matrices de rotacion de Jacobi de valores complejos para llevar a cero los elementos que se encuentran fuera de l diagonal en la primera matriz. Par cada iteracion, se puede formar una submatriz en base a la primera matriz y se puede descomponer para obtener vectores propios para la submatriz, y se puede formar una matriz de rotacion de Jacobi con los vectores propios y se puede utilizar para actualizar la primera matriz. Una segunda matriz de valores complejos, la cual contiene vectores ortogonales, se deriva en base a las matrices de rotacion de Jacobi. Para la descomposicion del valor propio, se puede derivar una tercer matriz de valores propios en base a las matrices de rotacion de Jacobi. Para la descomposicion del valor singular, una cuarta matriz con vectores singulares izquierdos y una matriz e valores singulares se pueden derivar en base a las matrices de rotacion de Jacobi.

    44.
    发明专利
    未知

    公开(公告)号:BR0315607A

    公开(公告)日:2005-08-23

    申请号:BR0315607

    申请日:2003-10-24

    Applicant: QUALCOMM INC

    Abstract: A user terminal supports multiple spatial multiplexing (SM) modes such as a steered mode and a non-steered mode. For data transmission, multiple data streams are coded and modulated in accordance with their selected rates to obtain multiple data symbol streams. These streams are then spatially processed in accordance with a selected SM mode (e.g., with a matrix of steering vectors for the steered mode and with the identity matrix for the non-steered mode) to obtain multiple transmit symbol streams for transmission from multiple antennas. For data reception, multiple received symbol streams are spatially processed in accordance with the selected SM mode ( e.g ., with a matrix of eigenvectors for the steered mode and with a spatial filter matrix for the non-steered mode) to obtain multiple recovered data symbol streams. These streams are demodulated and decoded in accordance with their selected rates to obtain multiple decoded data streams.

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