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公开(公告)号：US09692629B2
公开(公告)日：2017-06-27
申请号：US14648160
申请日：2013-11-27
Applicant: IDAC HOLDINGS, INC.
Inventor： Rui Yang , Leonid L. Kazakevich , Jialing Li , Erdem Bala , Kenneth Kearney , I-Tai Lu , Juan Fang , Zihao You
CPC classification number: H04L27/2627 , H04L5/0066 , H04L27/0008 , H04L27/2631 , H04L27/264 , H04W72/04
Abstract: A resource block (RB)-based multicarrier modulation (MCM) transmitter and receiver structure for spectral agile systems are disclosed. The transmitter and the receiver are capable of sharing opportunistically available and non-contiguous channels with other users. The RB-MCM partitions the available spectrum, contiguous or non-contiguous, into multiple RBs (same or different sizes), applies a baseband MCM or single carrier modulation, or coded single carrier or multicarrier schemes in each RB with a type of spectral leakage reduction technique, and applies RB modulation for each RB to modulate the signal from baseband to the frequency band of that RB. At the receiver, the received signal may be filtered and RB demodulation may be applied to put each RB signal in baseband and a baseband multicarrier or single carrier or coded single carrier or coded multicarrier demodulation may be applied to each RB signal. Different RBs may use different modulation schemes.
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公开(公告)号：US10523475B2
公开(公告)日：2019-12-31
申请号：US14766040
申请日：2014-02-04
Applicant: IDAC HOLDINGS, INC.
Inventor： Erdem Bala , Rui Yang , Jialing Li , Daniel R. Cohen
Abstract: A method and apparatus for performing pulse shaping using different windowing functions for different sub-bands of a transmission is disclosed. A method for use in a wireless transmit/receive unit (WTRU) may include the WTRU receiving data symbols. The WTRU may assign the data symbols to a plurality of subcarriers in different sub-bands and map the data symbols on each of the plurality of subcarriers in the different sub-bands to a plurality of corresponding subcarriers of an inverse fast Fourier transform (IFFT) block. The WTRU may take an IFFT of the block for each sub-band and pad an output of the IFFT block with a prefix and a postfix for each sub-band. The WTRU may apply a windowing function to an output of the padding for each sub-band and form a composite signal for transmission by adding an output of the windowing of each sub-band. The WTRU may transmit the signal.
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公开(公告)号：US10567147B2
公开(公告)日：2020-02-18
申请号：US14424740
申请日：2013-08-27
Applicant: IDAC Holdings, Inc.
Inventor： Robert A. DiFazio , Philip J. Pietraski , Rui Yang , Erdem Bala , Jialing Li
Abstract: Embodiments contemplate TDD systems and techniques where timeslots may be allocated as DL, UL, or FDSC; the base station (BS) may be full duplex singled channel (FDSC) capable; and some, all, or none of the UEs (or WTRUs) may be FDSC capable. In one or more embodiments, FDSC1 timeslots may be contemplated that may be used (in some embodiments perhaps exclusively used) by a pair of radios, for example one BS and one UE, both having FD capability. In one or more embodiments, FDSC timeslots may be shared among a BS with FDSC capability and two or more UEs, that may be half duplex (HD). Embodiments also contemplate various FDD systems and techniques, including full duplex FDD systems and techniques.
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公开(公告)号：US20170264476A1
公开(公告)日：2017-09-14
申请号：US15609973
申请日：2017-05-31
Applicant: IDAC Holdings, Inc.
Inventor： Rui Yang , Leonid L. Kazakevich , Jialing Li , Erdem Bala , Kenneth Kearney , I-Tai Lu , Juan Fang , Zihao You
CPC classification number: H04L27/2627 , H04L5/0066 , H04L27/0008 , H04L27/2631 , H04L27/264 , H04W72/04
Abstract: A resource block (RB)-based multicarrier modulation (MCM) transmitter and receiver structure for spectral agile systems are disclosed. The transmitter and the receiver are capable of sharing opportunistically available and non-contiguous channels with other users. The RB-MCM partitions the available spectrum, contiguous or non-contiguous, into multiple RBs (same or different sizes), applies a baseband MCM or single carrier modulation, or coded single carrier or multicarrier schemes in each RB with a type of spectral leakage reduction technique, and applies RB modulation for each RB to modulate the signal from baseband to the frequency band of that RB. At the receiver, the received signal may be filtered and RB demodulation may be applied to put each RB signal in baseband and a baseband multicarrier or single carrier or coded single carrier or coded multicarrier demodulation may be applied to each RB signal. Different RBs may use different modulation schemes.
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