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    System and methods for planned evolution and obsolescence of multiuser spectrum
    4.
    发明授权
    System and methods for planned evolution and obsolescence of multiuser spectrum 有权

    公开(公告)号：US10425134B2

    公开(公告)日：2019-09-24

    申请号：US13233006

    申请日：2011-09-14

    Applicant: Stephen G. Perlman ,  Antonio Forenza

    Inventor： Stephen G. Perlman ,  Antonio Forenza

    IPC: H04W84/04 ,  H04B7/0426 ,  H04B7/024 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L25/03 ,  H04W16/18 ,  H04W52/22 ,  H04W52/36 ,  H04W52/42 ,  H04B17/336

    Abstract: A system and method are described which enable planned evolution and obsolescence of multiuser wireless spectrum. One embodiment of such a system includes one or multiple centralized processors and one or multiple distributed nodes that communicate via wireline or wireless connections. The distributed nodes may share their identification number and other reconfigurable system parameters with the centralized processor. The information about all distributed nodes may be stored in a database that is shared by all centralized processors. The reconfigurable system parameters may comprise power emission, frequency band, modulation/coding scheme. The distributed nodes may be software defined radios such as FPGA, DSP, GPU and/or GPCPU that run algorithms for baseband signal processing and may be reconfigured remotely by the centralized processor. A cloud wireless system may be used wherein the distributed nodes are reconfigured periodically or instantly to adjust to the evolving wireless architecture.

    Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems
    7.
    发明授权
    Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems 有权

    公开(公告)号：US10200094B2

    公开(公告)日：2019-02-05

    申请号：US12802988

    申请日：2010-06-16

    Applicant: Antonio Forenza ,  Stephen G. Perlman

    Inventor： Antonio Forenza ,  Stephen G. Perlman

    IPC: H04K1/10 ,  H04L27/28 ,  H04B7/0413 ,  H04B7/06

    Abstract: A system and method are described herein employing a plurality of distributed transmitting antennas to create locations in space with zero RF energy. In one embodiment, when M transmit antennas are employed, it is possible to create up to (M−1) points of zero RF energy in predefined locations. In one embodiment of the invention, the points of zero RF energy are wireless devices and the transmit antennas are aware of the channel state information (CSI) between the transmitters and the receivers. In one embodiment, the CSI is computed at the receivers and fed back to the transmitters. In another embodiment, the CSI is computed at the transmitter via training from the receivers, assuming channel reciprocity is exploited. The transmitters may utilize the CSI to determine the interfering signals to be simultaneously transmitted. In one embodiment, block diagonalization (BD) precoding is employed at the transmit antennas to generate points of zero RF energy.

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