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公开(公告)号：US10536315B2
公开(公告)日：2020-01-14
申请号：US16089246
申请日：2017-03-30
Applicant: IDAC HOLDINGS, INC.
Inventor： Erdem Bala , Alphan Sahin , Moon-il Lee , Afshin Haghighat , Ananth Kini , Mihaela C. Beluri , Rui Yang , Janet A. Stern-Berkowitz , Leonid L. Kazakevich
Abstract: Methods, devices, and systems for transmitting information using a unique word (UW) with discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) are described herein. In an example, a wireless transmit/receive unit (WTRU) may generate a reference sequence. Further, the WTRU may generate a DMRS sequence based on upsampling of the reference sequence. In an example, the DMRS sequence may include a plurality of repeating sequences. Further, in an example, each repeating sequence may include a head sequence, a reference sequences and a tail sequence. Also, a UW sequence within the DMRS may include one of the repeated head sequences and one of the repeated tail sequences. In addition, the WTRU may generate a DMRS signal based on a waveform operation on the DMRS sequence. The WTRU may then transmit the DMRS signal as a reference signal.
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公开(公告)号：US20190097859A1
公开(公告)日：2019-03-28
申请号：US16089246
申请日：2017-03-30
Applicant: IDAC HOLDINGS, INC.
Inventor： Erdem Bala , Alphan Sahin , Moon-il Lee , Afshin Haghighat , Ananth Kini , Mihaela C. Beluri , Rui Yang , Janet A. Stern-Berkowitz , Leonid L. Kazakevich
CPC classification number: H04L27/2636 , H04L25/0224 , H04L27/2613
Abstract: Methods, devices, and systems for transmitting information using a unique word (UW) with discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) are described herein. In an example, a wireless transmit/receive unit (WTRU) may generate a reference sequence. Further, the WTRU may generate a DMRS sequence based on upsampling of the reference sequence. In an example, the DMRS sequence may include a plurality of repeating sequences. Further, in an example, each repeating sequence may include a head sequence, a reference sequences and a tail sequence. Also, a UW sequence within the DMRS may include one of the repeated head sequences and one of the repeated tail sequences. In addition, the WTRU may generate a DMRS signal based on a waveform operation on the DMRS sequence. The WTRU may then transmit the DMRS signal as a reference signal.
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公开(公告)号：US20190013881A1
公开(公告)日：2019-01-10
申请号：US16066577
申请日：2016-12-29
Applicant: IDAC HOLDINGS, INC.
Inventor： Robert L. Olesen , Rui Yang , Moon-il Lee , Alphan Sahin , Hanqing Lou , Fengjun Xi , Frank La Sita , Byung K. Yi , Janet A. Stern-Berkowitz
IPC: H04B15/02 , H04B1/10 , H04B1/403 , H04W16/14 , H04B7/0413 , H04B17/318
Abstract: Systems, methods, and instrumentalities are disclosed for transmitting a message. For example, a first radio access technology, RAT, and/or a second RAT may be determined. The first RAT may be determined for reception of data. The second RAT may be determined for the reception of the data, perhaps for example based on an indication received via the first RAT. The data may be received via a first node associated with the first RAT and a second node associated with the second RAT.
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公开(公告)号：US20240072866A1
公开(公告)日：2024-02-29
申请号：US18387349
申请日：2023-11-06
Applicant: IDAC Holdings, Inc.
Inventor： Oghenekome Oteri , Ahmad Reza Hedayat , Shahrokh Nayeb Nazar , Rui Yang
CPC classification number: H04B7/0626 , H04L5/0048 , H04W72/23 , H04W74/0808 , H04W16/14
Abstract: Systems, methods, and instrumentalities are described herein that may be used for transmission of one or more DCI, CSI-RS and/or CSI reports. A wireless transmit/receive unit (WTRU) may receive a DCI that includes information indicating two channel state information reference signal (CSI-RS) resources and four CSI reporting resources. Each CSI-RS resource may be associated with two CSI reporting resources. The WTRU may monitor a first CSI-RS resource for a CSI-RS. If the WTRU does not identify the CSI-RS in the first CSI-RS resource, the WTRU may monitor a second CSI-RS resource for the CSI-RS. The WTRU may receive the CSI-RS on the first CSI-RS resource or the second CSI-RS resource. The WTRU may determine availabilities of the first and/or the second CSI reporting resource associated with the CSI-RS resource on which the WTRU received the CSI-RS. The WTRU may transmit a CSI report on an available CSI reporting resource.
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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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Patent Agency Ranking
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：US11457475B2
公开(公告)日：2022-09-27
申请号：US16967887
申请日：2019-02-07
Applicant: IDAC Holdings, Inc.
Inventor： Oghenekome Oteri , Ahmad Reza Hedayat , Hanging Lou , Rui Yang , Janet A. Stern-Berkowitz , Moon-il Lee
Abstract: An LBT method and apparatus are disclosed for a WTRU and gNB. A method may comprise receiving a gNB beam direction schedule and an LBT measurement configuration. The WTRU may switch a receiver so as to receive a beam based on the beam direction schedule and monitor for a DCI. The WTRU may be configured to determine whether there is a transmission for the WTRU and if there is, the transmission may be received. The transmission may be a DCI for an uplink transmission of the WTRU. A WTRU may be configured to receive the gNB beam direction schedule and the LBT measurement configuration at a start of an MCOT.
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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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公开(公告)号：US20220094583A1
公开(公告)日：2022-03-24
申请号：US17419322
申请日：2019-12-31
Applicant: IDAC HOLDINGS, INC.
Inventor： Alphan Sahin , Moon-il Lee , Rui Yang
Abstract: A WTRU may comprise circuitry configured to determine DMRS sequences of length 12, 18 and 24 for PI/2 BPSK DFT-s-OFDM modulation. The sequences are optimized for PAPR, CM, frequency flatness, cross-correlation and for channel estimation (cyclic correlation).
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公开(公告)号：US20210058967A1
公开(公告)日：2021-02-25
申请号：US16967887
申请日：2019-02-07
Applicant: IDAC Holdings, Inc.
Inventor： Oghenekome Oteri , Ahmad Reza Hedayat , Hanqing Lou , Rui Yang , Janet A. Stern-Berkowitz , Moon-il Lee
Abstract: An LBT method and apparatus are disclosed for a WTRU and gNB. A method may comprise receiving a gNB beam direction schedule and an LBT measurement configuration. The WTRU may switch a receiver so as to receive a beam based on the beam direction schedule and monitor for a DCI. The WTRU may be configured to determine whether there is a transmission for the WTRU and if there is, the transmission may be received. The transmission may be a DCI for an uplink transmission of the WTRU. A WTRU may be configured to receive the gNB beam direction schedule and the LBT measurement configuration at a start of an MCOT.
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