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    TRANSMISSION WITH RESTRICTIONS IN UNLICENSED SPECTRUM
    2.
    发明申请
    TRANSMISSION WITH RESTRICTIONS IN UNLICENSED SPECTRUM 有权

    公开(公告)号：US20210392681A1

    公开(公告)日：2021-12-16

    申请号：US17351913

    申请日：2021-06-18

    申请人： IDAC HOLDINGS, INC.

    发明人： Muhammad Fazili ,  Janet A. Stern-Berkowitz ,  Arnab Roy ,  Kevin T. Wanuga ,  Moon-il Lee ,  Mihaela C. Beluri

    IPC分类号： H04W74/08 ,  H04W16/14 ,  H04W74/00

    摘要： Systems, devices, and methods for operating in an unlicensed band are disclosed herein. In one example, a device may receive configuration information that includes a maximum channel occupancy time (MCOT) and a plurality of parameters including a plurality of transmission opportunity windows (TOWs). Based on the configuration information, the device may split a transmission into a plurality of bursts that may be grouped into sets of bursts based on how many bursts fit within a TOW. The number of bursts in a set of bursts may be less than or equal to the MCOT. The device may perform a clear channel assessment (CCA) to determine if the channel is busy and to determine a start time within the TOW for the bursts. The device may then transmit the set of bursts for that TOW, where each burst may have a burst indicator (BI).

    DOWNLINK CONTROL CHANNEL DESIGN AND SIGNALING FOR BEAMFORMED SYSTEMS
    3.
    发明申请
    DOWNLINK CONTROL CHANNEL DESIGN AND SIGNALING FOR BEAMFORMED SYSTEMS 有权

    公开(公告)号：US20210037511A1

    公开(公告)日：2021-02-04

    申请号：US17073146

    申请日：2020-10-16

    申请人： IDAC Holdings, Inc.

    发明人： Yugeswar Deenoo ,  Tao Deng ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Ravikumar V. Pragada ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri

    IPC分类号： H04W72/04 ,  H04L5/00

    摘要： Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.

    Downlink control channel design and signaling for beamformed systems
    4.
    发明授权
    Downlink control channel design and signaling for beamformed systems 有权

    公开(公告)号：US10813085B2

    公开(公告)日：2020-10-20

    申请号：US15775028

    申请日：2016-11-10

    申请人： IDAC HOLDINGS, INC.

    发明人： Yugeswar Deenoo ,  Tao Deng ,  Kyle Jung-Lin Pan ,  Moon-il Lee ,  Ravikumar V. Pragada ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri

    IPC分类号： H04L12/801 ,  H04L12/24 ,  H04L5/14 ,  H04L29/06 ,  H04W72/04 ,  H04L5/00

    摘要： Transmit and/or receive beamforming may be applied to the control channel transmission/reception, e.g., in mmW access link system design. Techniques to identify candidate control channel beams and/or their location in the subframe structure may provide for efficient WTRU operation. A framework for beam formed control channel design may support varying capabilities of mBs and/or WTRUs, and/or may support time and/or spatial domain multiplexing of control channel beams. For a multi-beam system, modifications to reference signal design may discover, identify, measure, and/or decode a control channel beam. Techniques may mitigate inter-beam interference. WTRU monitoring may consider beam search space, perhaps in addition to time and/or frequency search space. Enhancements to downlink control channel may support scheduling narrow data beams. Scheduling techniques may achieve high resource utilization, e.g., perhaps when large bandwidths are available and/or WTRUs may be spatially distributed.

    METHODS, APPARATUSES AND SYSTEMS DIRECTED TO UNIQUE WORD DISCRETE FOURIER TRANSFORM SPREAD AND SHAPED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING BASED TRANSMISSIONS
    5.
    发明申请
    METHODS, APPARATUSES AND SYSTEMS DIRECTED TO UNIQUE WORD DISCRETE FOURIER TRANSFORM SPREAD AND SHAPED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING BASED TRANSMISSIONS 审中-公开

    公开(公告)号：US20200052947A1

    公开(公告)日：2020-02-13

    申请号：US16090570

    申请日：2017-03-30

    申请人： IDAC Holdings, Inc.

    发明人： Alphan Sahin ,  Erdem Bala ,  Rui Yang ,  Mihaela C. Beluri ,  Robert L. Olesen

    IPC分类号： H04L27/26 ,  H04W72/04

    摘要： Methods, apparatuses, systems, devices, and computer program products directed to unique word (UW) discrete Fourier transform (DFT) spread and shaped orthogonal frequency division multiplexing (OFDM) (“UW DFT-S-S-OFDM”) based communications are provided. Among new methodologies and/or technologies provided is a method that may be implemented in transmitter and that may include any of: transforming a set of data symbols and a UW sequence into a frequency domain (“fDOM”) signal using a DFT; replicating the fDOM signal so as to form a plurality of fDOM signal instances, wherein the plurality of fDOM signal instances is inclusive of the fDOM signal; shaping one or more of the plurality of fDOM signal instances; combining the plurality of fDOM signal instances to form a combined fDOM signal; transforming the combined fDOM signal into a block-based signal using an inverse DFT (IDFT); and outputting the block-based signal.

    ZERO TAIL AND UNIQUE WORD BASED WAVEFORMS FOR DFT-S OFDM AND OFDM
    6.
    发明申请
    ZERO TAIL AND UNIQUE WORD BASED WAVEFORMS FOR DFT-S OFDM AND OFDM 审中-公开

    公开(公告)号：US20190199569A1

    公开(公告)日：2019-06-27

    申请号：US16292991

    申请日：2019-03-05

    申请人： IDAC HOLDINGS, INC.

    发明人： Erdem Bala ,  Mihaela C. Beluri ,  Kyle Jung-Lin Pan ,  Tao Deng ,  Liangping Ma ,  Yugeswar Deenoo ,  Ravikumar V. Pragada ,  Alphan Sahin

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2627 ,  H04L27/2605

    摘要： Methods and systems for operation in a wireless network are provided, the methods including receiving modulated data symbols and zeros in a frequency-domain, and mapping in the frequency-domain the modulated data symbols and zeros in an interleaved manner to sub-carriers within a resource allocation. The methods and systems further include generating a time-domain data signal based on the mapped sub-carriers, and generating a time domain cancellation signal by sign inverting and repeating a predetermined number of time-domain samples at a tail portion of the data signal. The methods and systems further include combining the time-domain data signal and the time domain cancellation signal to generate an exact zero tail data signal such that the exact zero tail data signal has a zero tail length equal to the predetermined number of time-domain samples, and transmitting the exact zero tail data signal.

    METHODS, DEVICES AND SYSTEMS FOR GRANT-LESS UPLINK MULTIPLE ACCESS
    7.
    发明申请
    METHODS, DEVICES AND SYSTEMS FOR GRANT-LESS UPLINK MULTIPLE ACCESS 审中-公开

    公开(公告)号：US20190174472A1

    公开(公告)日：2019-06-06

    申请号：US16324007

    申请日：2017-08-10

    申请人： IDAC HOLDINGS, INC.

    发明人： Moon-il Lee ,  Afshin Haghighat ,  Erdem Bala ,  Janet A. Stern-Berkowitz ,  Mihaela C. Beluri ,  Ananth Kini

    IPC分类号： H04W72/04 ,  H04L1/18

    摘要： Methods, apparatuses and systems are provided for grant-less (GL) uplink transmissions. A wireless transmit/receive unit (WTRU) may receive a configuration of a set of GL Physical Uplink Shared Channel (GL-PUSCH) frequency resources. The WTRU may monitor for a downlink control information (DCI) message, wherein the DCI message includes an indication of a presence of at least a subset of the set of GL-PUSCH frequency resources. If the WTRU successfully receives the DCI message, the WTRU may select one or more GL-PUSCH frequency resources from the subset of the set of GL-PUSCH frequency resources and may select a time period. The WTRU may transmit data on a GL-PUSCH using the selected GL-PUSCH frequency resources during the selected time period. The WTRU may also monitor for hybrid automatic repeat request acknowledgement (HARQ-ACK) based on the selected GL-PUSCH frequency resources. The WTRU may monitor for the DCI during a fixed time window.

    ZERO TAIL AND UNIQUE WORD BASED WAVEFORMS FOR DFT-S OFDM AND OFDM
    9.
    发明申请
    ZERO TAIL AND UNIQUE WORD BASED WAVEFORMS FOR DFT-S OFDM AND OFDM 审中-公开

    公开(公告)号：US20180375707A1

    公开(公告)日：2018-12-27

    申请号：US15777761

    申请日：2016-11-30

    申请人： IDAC HOLDINGS, INC.

    发明人： Erdem Bala ,  Mihaela C. Beluri ,  Kyle Jung-Lin Pan ,  Tao Deng ,  Liangping Ma ,  Yugeswar Deenoo ,  Ravikumar V. Pragada ,  Alphan Sahin

    IPC分类号： H04L27/26

    摘要： Methods and systems for operation in a wireless network are provided, the method including receiving modulated data symbols and zeros in a frequency-domain, and mapping in the frequency-domain the modulated data symbols and zeros in an interleaved manner to sub-carriers within a resource allocation. The method further includes generating a time-domain data signal based on the mapped sub-carriers, and generating a time domain cancellation signal by sign inverting and repeating a predetermined number of time-domain samples at a tail portion of the data signal. The method further includes combining the time-domain data signal and the time domain cancellation signal to generate an exact zero tail data signal such that the exact zero tail data signal has a zero tail length equal to the predetermined number of time-domain samples, and transmitting the exact zero tail data signal.