知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

76 records (took 0.024 seconds)

    METHOD AND APPARATUS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT OPERATION
    54.
    发明申请
    METHOD AND APPARATUS FOR MULTIPLE-INPUT MULTIPLE-OUTPUT OPERATION 审中-公开

    公开(公告)号：US20190341977A1

    公开(公告)日：2019-11-07

    申请号：US16513184

    申请日：2019-07-16

    Applicant: InterDigital Patent Holdings, Inc.

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

    IPC: 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.

    Beam training and initial access
    56.
    发明授权
    Beam training and initial access 有权

    公开(公告)号：US12184368B2

    公开(公告)日：2024-12-31

    申请号：US17539341

    申请日：2021-12-01

    Applicant: InterDigital Patent Holdings, Inc.

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

    IPC: H04W74/08 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00 ,  H04W68/00 ,  H04W68/02 ,  H04W72/044 ,  H04W72/23 ,  H04W72/30 ,  H04W74/0833 ,  H04W76/11

    Abstract: The present application is at least directed to an apparatus including a non-transitory memory with stored instructions for beam link pairing the apparatus to a gNB in a new radio. A processor of the apparatus, operably coupled to the non-transitory memory, executes an instruction of detecting synchronization signal blocks (SS). Another executed instruction includes receiving PRACH resource information in a master information block on a PBCH or system information block (SIB) on the secondary PBCH. Another executed instruction includes transmitting PRACH preambles through a set of uplink transmission beams in a subframe including the group of SS blocks. The PRACH preambles may be obtained from the PRACH resource information. Even another executed instruction including determining the apparatus is in a radio resource control (RRC) connected state. A further executed instruction includes measuring, while in the RRC connected state, a multiple set of channel state information reference signals (CSI-RSs) configured by the gNB. Yet a further executed instruction includes transmitting, to the gNB, a single report based on the multiple set of CSI-RSs.

    MULTIPLE TRPS AND PANELS TRANSMISSION WITH DYNAMIC BANDWIDTH FOR NR
    57.
    发明申请
    MULTIPLE TRPS AND PANELS TRANSMISSION WITH DYNAMIC BANDWIDTH FOR NR 有权

    公开(公告)号：US20240414804A1

    公开(公告)日：2024-12-12

    申请号：US18808719

    申请日：2024-08-19

    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

    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.

Patent Agency Ranking