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    PHY LAYER MULTIPLEXING OF DIFFERENT TYPES OF TRAFFIC IN 5G SYSTEMS
    22.
    发明申请
    PHY LAYER MULTIPLEXING OF DIFFERENT TYPES OF TRAFFIC IN 5G SYSTEMS 审中-公开

    公开(公告)号：US20190165906A1

    公开(公告)日：2019-05-30

    申请号：US16090767

    申请日：2017-04-07

    Applicant: IDAC Holdings, Inc.

    Inventor： Erdem Bala ,  Alphan Sahin ,  Moon-il Lee ,  Mihaela C. Beluri ,  Rui Yang ,  Janet A. Stern-Berkowitz ,  Fengjun Xi ,  Afshin Haghighat

    IPC: H04L5/00

    Abstract: Systems, methods, and instrumentalities are disclosed for physical (PHY) layer multiplexing of different types of traffic in 5G systems. A device may receive a communication. The communication may include a first traffic type. The device may monitor the communication for an indication that the communication includes a second traffic type that is multiplexed with and/or punctures the first traffic type. An indicator received in the communication and detected by the monitoring may indicate where the second traffic type is located in the communication. The first traffic type and the second traffic type may be multiplexed at a resource element (RE) level. For example, a first traffic type may be punctured by a second traffic type at the RE level. The device may de code one or more of the first or second traffic types in the communication based on the indication.

    Zero tail and unique word based waveforms for DFT-S OFDM and OFDM
    24.
    发明授权
    Zero tail and unique word based waveforms for DFT-S OFDM and OFDM 有权

    公开(公告)号：US10284407B2

    公开(公告)日：2019-05-07

    申请号：US15777761

    申请日：2016-11-30

    Applicant: IDAC HOLDINGS, INC.

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

    IPC: H04L27/30 ,  H04L27/26

    Abstract: 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.

    PHASE TRACKING REFERENCE SIGNAL TRANSMISSION
    25.
    发明申请
    PHASE TRACKING REFERENCE SIGNAL TRANSMISSION 有权

    公开(公告)号：US20220200755A1

    公开(公告)日：2022-06-23

    申请号：US17694130

    申请日：2022-03-14

    Applicant: IDAC Holdings, Inc.

    Inventor： Moon-il Lee ,  Alphan Sahin ,  Erdem Bala ,  Afshin Haghighat ,  Frank LaSita ,  Janet A. Stern-Berkowitz

    IPC: H04L5/00

    Abstract: A system, method, and device for ensuring a number of Phase Tracking Reference Signal(s) (PT-RSs) are the same for multiple slots. A wireless transmit/receive unit (WTRU) may receive control information including a number of scheduled resource blocks (RBs) then determine a PT-RS density based on the number of scheduled RBs. The WTRU may determine a RB offset value for the WTRU based on a WTRU-ID modulo the maximum RB offset value, where the maximum value for the RB offset value may be based on at least one of the number of the scheduled RBs and the PT-RS density. The WTRU may then transmit or receive a signal with PT-RS based on the RB offset value.

    METHODS, APPARATUSES AND SYSTEMS DIRECTED TO COMPLEMENTARY SEQUENCE ENCODING AND ENCODED COMPLEMENTARY SEQUENCE TRANSMISSIONS
    26.
    发明申请
    METHODS, APPARATUSES AND SYSTEMS DIRECTED TO COMPLEMENTARY SEQUENCE ENCODING AND ENCODED COMPLEMENTARY SEQUENCE TRANSMISSIONS 有权

    公开(公告)号：US20220060272A1

    公开(公告)日：2022-02-24

    申请号：US17276076

    申请日：2019-09-13

    Applicant: IDAC Holdings, Inc.

    Inventor： Alphan Sahin ,  Rui Yang

    IPC: H04J13/00 ,  H04L1/00

    Abstract: Methods, apparatuses and systems directed to complementary sequence (CS) encoding and encoded CS transmissions are provided. Among the apparatuses is apparatus having a transmitter that may be configured to (i) transmit an encoded CS via a block based, e.g., orthogonal frequency division multiplexing (OFDM), waveform, and/or (ii) generate the encoded CS using a plurality of seed sequences and a plurality of information items, wherein: of the elements of the encoded CS encodes a first set of the plurality of information items; (b) phases of the encoded-CS elements encode a second set of the plurality of information items); and (c) the encoded-CS elements define a number of zeros that encode a third set of the plurality of information items. The encoded-CS elements may define respective numbers of zeros that collectively form the number of zeros that encode the third information-item set.

    METHODS FOR FLEXIBLE REFERENCE SIGNAL TRANSMISSION WITH SINGLE CARRIER FREQUENCY DOMAIN MULTIPLE ACCESS (SC-FDMA) AND OFDMA
    27.
    发明申请
    METHODS FOR FLEXIBLE REFERENCE SIGNAL TRANSMISSION WITH SINGLE CARRIER FREQUENCY DOMAIN MULTIPLE ACCESS (SC-FDMA) AND OFDMA 有权

    公开(公告)号：US20210226836A1

    公开(公告)日：2021-07-22

    申请号：US17226944

    申请日：2021-04-09

    Applicant: IDAC HOLDINGS, INC.

    Inventor： Alphan Sahin ,  Rui Yang ,  Erdem Bala

    IPC: H04L27/26 ,  H04W4/70 ,  H04L1/00 ,  H04L5/00

    Abstract: A method for transmitting a discrete fourier transform (DFT) DFT-S-OFDM signal including frequency domain reference symbols is disclosed. The method comprises: determining to null a plurality of data symbols prior to DFT-spreading; performing DFT-spreading including the determined null data symbols; puncturing an interleaved output of the DFT-spreading; inserting reference symbols in a frequency domain of the punctured and interleaved DFT-S-OFDM signal; and transmitting the DFT-S-OFDM signal with inserted reference symbols to a receiver. The transmitted DFT-S-OFDM signal enables the receiver to apply zeros corresponding to the reference symbols to an interleaved input of DFT-despreading, and cancel interference due to the puncturing by using all outputs of the DFT-despreading.

    PHY LAYER MULTIPLEXING OF DIFFERENT TYPES OF TRAFFIC IN 5G SYSTEMS
    28.
    发明申请
    PHY LAYER MULTIPLEXING OF DIFFERENT TYPES OF TRAFFIC IN 5G SYSTEMS 有权

    公开(公告)号：US20210167905A1

    公开(公告)日：2021-06-03

    申请号：US17171499

    申请日：2021-02-09

    Applicant: IDAC Holdings, Inc.

    Inventor： Erdem Bala ,  Alphan Sahin ,  Moon-il Lee ,  Mihaela C. Beluri ,  Rui Yang ,  Janet A. Stern-Berkowitz ,  Fengjun Xi ,  Afshin Haghighat

    IPC: H04L5/00 ,  H04J11/00 ,  H04W84/04

    Abstract: Systems, methods, and instrumentalities are disclosed for physical (PHY) layer multiplexing of different types of traffic in 5G systems. A device may receive a communication. The communication may include a first traffic type. The device may monitor the communication for an indication that the communication includes a second traffic type that is multiplexed with and/or punctures the first traffic type. An indicator received in the communication and detected by the monitoring may indicate where the second traffic type is located in the communication. The first traffic type and the second traffic type may be multiplexed at a resource element (RE) level. For example, a first traffic type may be punctured by a second traffic type at the RE level. The device may decode one or more of the first or second traffic types in the communication based on the indication.

    Reference signal-free transmission for wireless systems
    29.
    发明授权
    Reference signal-free transmission for wireless systems 有权

    公开(公告)号：US10985958B2

    公开(公告)日：2021-04-20

    申请号：US16337746

    申请日：2017-09-19

    Applicant: IDAC Holdings, Inc.

    Inventor： Alphan Sahin ,  Erdem Bala ,  Rui Yang ,  Mihaela C. Beluri ,  Moon-il Lee ,  Janet A. Stern-Berkowitz

    IPC: H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L1/08

    Abstract: Systems, methods, and instrumentalities are disclosed for separating a channel and data without the use of reference signals. For example, a wireless transmit/receive unit (WTRU) may determine a first orthogonal frequency-division multiplexing (OFDM) symbol based on a data vector. The WTRU may determine a second OFDM symbol by applying a circular time-inverse operation and a conjugate operation to the first OFDM symbol. The WTRU may send the first OFDM symbol and the second OFDM symbol. The first and the second OFDM symbols may be sent to consecutively. Discrete Fourier Transform (DFT)-spread and nonlinear preprocessing (exponential transformation at the transmitter) may be used and/or peak-to-average power ratio (PAPR) may be reduced via randomizer block at the receiver.

    MULTIPLE DIMENSION MODULATION IN 5G SYSTEMS
    30.
    发明申请
    MULTIPLE DIMENSION MODULATION IN 5G SYSTEMS 审中-公开

    公开(公告)号：US20200259607A1

    公开(公告)日：2020-08-13

    申请号：US16088075

    申请日：2017-03-29

    Applicant: IDAC Holdings, Inc.

    Inventor： Fengjun Xi ,  Steven Ferrante ,  Kyle Jung-Lin Pan ,  Alphan Sahin ,  Chunxuan Ye ,  Robert L. Olesen

    IPC: H04L5/00 ,  H04L1/00 ,  H04B7/0456 ,  H04B7/10

    Abstract: Systems and methods related to increased spectrum efficiency for 5G communications, comprising combining time, frequency, spatial, and signal domains for multi-dimension modulation. In one embodiment, the ability of reconfigurable antenna to change their radiation pattern and/or polarization modes may be used to modulate additional information onto the conventional SM-MIMO transmitted signal. In further embodiments, various combinations of space shift keying, block coding, multi-carrier modulation, and the like may be used to introduce additional dimensions for data modulation and achieve diversity gain.

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