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    METHOD AND APPARATUS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT OPERATION
    11.
    发明申请
    METHOD AND APPARATUS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT OPERATION 审中-公开

    公开(公告)号：US20170093469A1

    公开(公告)日：2017-03-30

    申请号：US15375528

    申请日：2016-12-12

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Shahrokh Nayeb Nazar ,  Lakshmi R. Iyer ,  Robert L. Olesen ,  Benoit Pelletier ,  Manasa Raghavan ,  Moon-il Lee

    IPC: H04B7/04 ,  H04W72/04

    CPC classification number: H04B7/0452 ,  H04W72/04

    Abstract: An eNode-B for a multi-user multiple-input multiple-output (MU-MIMO) downlink transmission to at least first and second wireless transmit/receive units (WTRUs) via resource elements (REs) of first and second spatial layers, the eNode-B comprising a transmitter and a processor, the processor coupled to the transmitter. The processor configured to generate the MU-MIMO downlink transmission including: allocating a first set of the REs, as first resources, to the first spatial layer for the first WTRU, and a second set of the REs, as second resources, to the second spatial layer for the second WTRU, mapping a first WTRU-specific reference signal (RS) associated with the first WTRU on a subset of the first resources, and a second WTRU-specific RS associated with the second WTRU on a subset of the second resources, muting allocated REs of the first resources overlapping with the subset of the second resources used for the second WTRU-specific RS, and allocated REs of the second resources overlapping with the subset of the first resources used for the first WTRU-specific RS. The transmitter configured to send the MU-MIMO downlink transmission.

    Autonomous uplink transmission in unlicensed new radio spectrum
    12.
    发明授权
    Autonomous uplink transmission in unlicensed new radio spectrum 有权

    公开(公告)号：US12218762B2

    公开(公告)日：2025-02-04

    申请号：US17265245

    申请日：2019-08-08

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Lakshmi R. Iyer ,  Joseph M. Murray ,  Mohamed Awadin ,  Qing Li ,  Yifan Li ,  Guodong Zhang ,  Pascal M. Adjakple

    IPC: H04L1/1812 ,  H04L1/1829

    Abstract: Hybrid automatic repeat request (HARQ) processes may be transmitted via configured grants as well as scheduled grants. The configured grants may include time and frequency resources, and transmissions may occur across contiguous transmissions. HARQ process information, such as HARQ IDs and redundancy versions, may be communicated via a control channel, and the control channel may be multiplexed with the transmission resources of the configured grants. Retransmission timers may be used for HARQ processes conveyed via configured grants, and the transmitting apparatus may signal to a receiver when to send an acknowledgement. An acknowledgement may take the form of bitmaps for code block groups of a HARQ. A configured grant may be selected from among multiple configured grants based upon low latency, for example. A group of configured grants may be activated or deactivated via a single command.

    Multiple TRPs and panels transmission with dynamic bandwidth for NR
    17.
    发明授权
    Multiple TRPs and panels transmission with dynamic bandwidth for NR 有权

    公开(公告)号：US12101841B2

    公开(公告)日：2024-09-24

    申请号：US18458429

    申请日：2023-08-30

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Allan Y Tsai ,  Guodong Zhang ,  Qing Li ,  Lakshmi R. Iyer ,  Yifan Li ,  Joseph M. Murray ,  Pascal M. Adjakple

    IPC: H04W76/27 ,  H04W74/0833

    CPC classification number: H04W76/27 ,  H04W74/0833

    Abstract: The present application describes a WTRU including a non-transitory memory including instructions stored thereon for re-establishing a remote radio control (RRC) connection with a base station. The apparatus also includes a processor capable of executing instructions of determining, based upon a measurement in an active downlink bandwidth part (DL BWP), to initiate a random access channel (RACH) procedure. The processor also executes instructions of switching to a default uplink bandwidth part (UL BWP). The processor also executes instructions of initiating the RACH procedure. The process further executes instructions of transmitting a RA preamble using one of the RACH resources configured for the default UL BWP. The processor even further executes instructions of receiving a RA response. The processor yet even further executes instructions of switching from the default UL BWP to either an active UL BWP or another active UL BWP after re-establishing the RRC connection.

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