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    ENCODING DATA WITH POLAR CODES FOR CONTROL CHANNELS
    2.
    发明申请
    ENCODING DATA WITH POLAR CODES FOR CONTROL CHANNELS 审中-公开

    公开(公告)号：US20190215011A1

    公开(公告)日：2019-07-11

    申请号：US16356577

    申请日：2019-03-18

    申请人： AT&T INTELLECTUAL PROPERTY I, L.P.

    发明人： SaiRamesh Nammi ,  Xiaoyi Wang ,  Arunabha Ghosh

    IPC分类号： H03M13/13 ,  H04L1/00

    CPC分类号： H03M13/13 ,  H04L1/0002 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/0072

    摘要： Various embodiments provide for encoding and decoding control link information with polar codes where the frozen bits of the information block can be set to the device identification number instead of being set to null. The frozen bits can be identified based on the type of polar code being used, and while the non-frozen bits can be coded with the channel state information, the frozen bits can be coded with the device ID. In an example where there are more frozen bits than bits in the device ID, the most reliable of the frozen bits can be coded with the device ID. In another example, the frozen bits can be set to the CRC bits, which can then be masked by the device ID.

    COLLISION DETECTION AND AVOIDANCE MECHANISM USING DISTRIBUTED RADIO HEADS IN A WIRELESS NETWORK
    10.
    发明申请
    COLLISION DETECTION AND AVOIDANCE MECHANISM USING DISTRIBUTED RADIO HEADS IN A WIRELESS NETWORK 审中-公开

    公开(公告)号：US20180324858A1

    公开(公告)日：2018-11-08

    申请号：US15585400

    申请日：2017-05-03

    申请人： Cisco Technology, Inc.

    发明人： David Kloper ,  Brian D. Hart ,  Matthew A. Silverman ,  Paul J. Stager

    IPC分类号： H04W74/08 ,  H04W74/00

    CPC分类号： H04W74/0816 ,  H04L1/0002 ,  H04L1/0007 ,  H04L2001/0092 ,  H04W74/004 ,  H04W74/006 ,  H04W88/085

    摘要： A central processor subsystem controls multiple transceivers. Each transceiver transmits protocol data units from antennas of that transceiver and produces receive waveforms from wirelessly received signals at the one or more antennas. A transmit waveform, including a frame addressed to one or more wireless client devices, is sent through a first transceiver to be transmitted wirelessly by the first transceiver on a frequency channel. A receive waveform, representative of the transmission by the first transceiver and wirelessly received at a second transceiver, is received from the second transceiver. While the transmit waveform is being sent to the first transceiver: a level of collision between the receive waveform and another transmission on the frequency channel is detected; and if the level of collision exceeds a threshold prior to an end of the receive waveform, the transmit waveform being sent to the first transceiver is modified to reduce the collision.