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公开(公告)号：US20200067680A1
公开(公告)日：2020-02-27
申请号：US16610222
申请日：2018-05-01
Applicant: IDAC Holdings, Inc.
Inventor： Shahrokh Nayeb Nazar , Mahmoud Taherzadeh Boroujeni , Erdem Bala , Alphan Sahin , Oghenekome Oteri , Rui Yang , Frank La Sita , Ahmad Reza Hedayat
Abstract: A wireless transmit receive unit (WTRU) may be configured to transmit uplink control information such as Hybrid Automatic Retransmission Request (HARQ) Acknowledgement or Negative Acknowledgement (ACK/NACK) using a sequence. The HARQ ACK/NACK may comprise one bit or two bits of information, and the WTRU may use a cyclic shift of the sequence to transmit the HARQ ACK/NACK. The WTRU may use different cyclic shifts of the sequence to transmit different HARQ ACK/NACK values and the cyclic shifts may be separated from each other in a manner to facilitate the transmissions. The WTRU may be further configured to receive, from a physical downlink control channel (PDCCH), an indication of a resource block for transmitting the HARQ ACK/NACK.
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32.发明申请公开(公告)号：US20200052948A1
公开(公告)日：2020-02-13
申请号：US16094748
申请日：2017-04-20
Applicant: IDAC Holdings, Inc.
Inventor： Alphan Sahin , Mihaela C Beluri , Rui Yang , Erdem Bala , Afshin Haghighat
IPC: H04L27/26 , H04B1/7085 , H04L5/00
Abstract: The invention pertains to methods and apparatus for non-systematic complex coded unique word DFT spread orthogonal frequency division multiplexing.
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公开(公告)号：US20200008228A1
公开(公告)日：2020-01-02
申请号：US16337774
申请日：2017-09-28
Applicant: IDAC Holdings, Inc.
Inventor： Moon-il Lee , Erdem Bala , Janet A. Stern-Berkowitz , Mihaela C. Beluri , Alphan Sahin , Rui Yang
Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.
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公开(公告)号：US20190222371A1
公开(公告)日：2019-07-18
申请号：US16300195
申请日：2017-05-08
Applicant: IDAC Holdings, Inc.
Inventor： Alphan Sahin , Erdem Bala , Mihaela C. Beluri , Rui Yang
CPC classification number: H04L5/0021 , H04L1/0068 , H04L27/2636 , H04L27/3416 , H04W76/27
Abstract: A method for increasing the efficiency and robustness of non-orthogonal multiple access (NOMA) schemes may include storing relationships that associate codewords with values of bit sets, receiving information bits and converting the information bits into bit sets, determining codewords associated with the bit sets, and transmitting the determined codewords. A first codeword may be pre-defined for a WTRU. A second codeword associated with a first bit set may be determined using a first relationship between the first codeword and a value of the first bit set. A third codeword associated with a second bit set may be determined using a second relationship between the second codeword and a value of the second bit set.
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35.发明申请公开(公告)号：US20190068425A1
公开(公告)日：2019-02-28
申请号：US16173507
申请日：2018-10-29
Applicant: IDAC Holdings, Inc.
Inventor： Alphan Sahin , Rui Yang , Fengjun Xi , Oghenekome Oteri , Hanqing Lou , Robert L. Olesen
Abstract: A wireless transmit/receive unit (WTRU) may generate a first signal that utilizes a tail suppression signal generated from data and utilizes a first unique word. Elements of the data and the first signal may be mapped to one or more discrete Fourier transform spread (DFT-S) functions. An inverse DFT on symbols generated by the one or more DFT-S functions may be performed to generate a second signal for transmission.
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Patent Agency Ranking
36.发明授权公开(公告)号：US10129065B2
公开(公告)日：2018-11-13
申请号：US15742329
申请日：2016-07-07
Applicant: IDAC HOLDINGS, INC.
Inventor： Alphan Sahin , Rui Yang , Fengjun Xi , Oghenekome Oteri , Hanqing Lou , Robert L. Olesen
Abstract: Precoding, a symbol permutation operation, or pulse shaping may be used to suppress or cancel a tail or head of a symbol. Precoding may include utilization of a suppression vector. A unique word (UW) may be added to the suppression vector before spreading. The symbol and values of the suppression vector may be spread by a spreading function(s) and may be shaped prior to transmission.
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公开(公告)号：US20180316537A1
公开(公告)日：2018-11-01
申请号：US15769938
申请日：2016-11-02
Applicant: IDAC HOLDINGS, INC.
Inventor： Afshin Haghighat , Erdem Bala , Ananth Kini , Alphan Sahin
CPC classification number: H04L27/2636 , H04L5/0039 , H04L5/0073
Abstract: Techniques may be used to generate a multi-length Zero Tail (ZT) Discrete Fourier Transform-spread Orthogonal Frequency Domain Modulation (DFT-s-OFDM) signal for transmission. A selected allocation of frequency resources may include a plurality of subbands. Subbands may be assigned to wireless transmit/receive units (WTRUs) (i.e., users), and zero head length and zero tail length may be assigned to each of the assigned subbands according to a pattern to combat inter-symbol interference (ISI). The ZT DFT-s OFDM signal may generated for transmission over the assigned subbands in accordance with the assigned zero head length and the assigned zero tail length.
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公开(公告)号：US20240063950A1
公开(公告)日：2024-02-22
申请号：US18377684
申请日：2023-10-06
Applicant: IDAC HOLDINGS, INC.
Inventor： Alphan Sahin , Rui Yang , Erdem Bala , Shahrokh Nayeb Nazar
IPC: H04L1/1607 , H04L5/00 , H04L27/26 , H04W16/14 , H04W72/21
CPC classification number: H04L1/1607 , H04L5/0055 , H04L27/2607 , H04W16/14 , H04L27/2634 , H04W72/21 , H04L5/0048
Abstract: A wireless transmit/receive unit (WTRU) may receive a downlink transmission and send a physical uplink control channel (PUCCH) transmission in each resource block (RB) of an interlace of a plurality of RBs in an active bandwidth part (BWP). A base sequence is mapped to the PUCCH transmission repetitively, once to each RB of the plurality of RBs of the interlace, using a different cyclic shift of the base sequence for each RB. Each different cyclic shift of the base sequence in the PUCCH transmission to each RB is a function of a RB index of the respective RB. The PUCCH transmission indicates either an acknowledgement (ACK) or a negative ACK (NACK) of the received downlink transmission.
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公开(公告)号：US11563618B2
公开(公告)日：2023-01-24
申请号：US16090570
申请日：2017-03-30
Applicant: IDAC Holdings, Inc.
Inventor： Alphan Sahin , Erdem Bala , Rui Yang , Mihaela C. Beluri , Robert L. Olesen
Abstract: 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 implemented in transmitter and includes 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.
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公开(公告)号：US20220095228A1
公开(公告)日：2022-03-24
申请号：US17431734
申请日：2020-02-21
Applicant: IDAC Holdings, Inc.
Inventor： Alphan Sahin , Rui Yang , Erdem Bala , Fengjun Xi
Abstract: Systems, methods, and instrumentalities associated with wake-up signals may be provided, e.g., for power saving. The systems, methods, and instrumentalities may include interference-free wake-up signal (WUS)/go-to-sleep signal (GOS) and/or ON/OFF keying (OOK) waveform enhancements. The systems, methods, and instrumentalities for interference-free WUS/GOS may include wake-up control signal format and content and/or user multiplexing and reference symbols for WUS/GOS signaling. The systems, methods, and instrumentalities for OOK waveform enhancements may include one or more of uniform WUS/GUS using time domain masking based OOK, OOK randomization, and/or using orthogonal frequency division multiplexing (OFDM) symbols with multiple subcarrier spacing values for OOK symbols.
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