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    PHASE TRACKING REFERENCE SIGNAL TRANSMISSION
    2.
    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

    申请人： IDAC Holdings, Inc.

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

    IPC分类号： H04L5/00

    摘要： 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 FOR FLEXIBLE REFERENCE SIGNAL TRANSMISSION WITH SINGLE CARRIER FREQUENCY DOMAIN MULTIPLE ACCESS (SC-FDMA) AND OFDMA
    3.
    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

    申请人： IDAC HOLDINGS, INC.

    发明人： Alphan Sahin ,  Rui Yang ,  Erdem Bala

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

    摘要： 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
    4.
    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

    申请人： IDAC Holdings, Inc.

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

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

    摘要： 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
    5.
    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

    申请人： IDAC Holdings, Inc.

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

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

    摘要： 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.

    Full duplex single channel communications
    7.
    发明授权
    Full duplex single channel communications 有权

    公开(公告)号：US10567147B2

    公开(公告)日：2020-02-18

    申请号：US14424740

    申请日：2013-08-27

    申请人： IDAC Holdings, Inc.

    发明人： Robert A. DiFazio ,  Philip J. Pietraski ,  Rui Yang ,  Erdem Bala ,  Jialing Li

    IPC分类号： H04B7/14 ,  H04L5/14

    摘要： 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.

    Reference Signal Design for Wireless Communication Systems
    9.
    发明申请
    Reference Signal Design for Wireless Communication Systems 审中-公开

    公开(公告)号：US20200008228A1

    公开(公告)日：2020-01-02

    申请号：US16337774

    申请日：2017-09-28

    申请人： IDAC Holdings, Inc.

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

    IPC分类号： H04W72/12 ,  H04L5/00 ,  H04L27/26

    摘要： 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.