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118 条记录 (耗时 0.036 秒)

    Beam management for multi-TRP
    2.
    发明授权
    Beam management for multi-TRP 有权

    公开(公告)号：US12040852B2

    公开(公告)日：2024-07-16

    申请号：US18141686

    申请日：2023-05-01

    申请人： InterDigital Patent Holdings, Inc.

    发明人： Wei Chen ,  Fengjun Xi ,  Kyle Jung-Lin Pan

    IPC分类号： H04B7/0408 ,  H04B7/0404 ,  H04B7/06 ,  H04W88/02

    CPC分类号： H04B7/0408 ,  H04B7/0404 ,  H04B7/0617 ,  H04W88/02

    摘要： Methods and apparatus for beam management are disclosed. A WTRU may include a plurality of antenna panels, each antenna panel comprising a plurality of antennas configured to transmit on directional transmit (TX) beams. The WTRU may send, to a transmission reception point (TRP), antenna panel capability information for the plurality of antenna panels and receive a reference signal (RS) configuration for configuring RS resource sets. The WTRU may send an RS transmission trigger frame identifying triggered RS resource sets from the configured RS resource sets. The WTRU may identify a set of antenna panels to be used with the triggered RS resource sets. The WTRU may determine an UL TX beam sweeping mode and an association between the triggered RS resources sets and the set of antenna panels. The WTRU may perform UL beam sweeping using the triggered RS resource sets and associated set of antenna panels.

    Initial access and channel access in new radio/new radio-unlicensed (NR/NR-U)
    5.
    发明授权
    Initial access and channel access in new radio/new radio-unlicensed (NR/NR-U) 有权

    公开(公告)号：US11844105B2

    公开(公告)日：2023-12-12

    申请号：US17845617

    申请日：2022-06-21

    申请人： InterDigital Patent Holdings, Inc.

    发明人： Kyle Jung-Lin Pan ,  Fengjun Xi ,  Chunxuan Ye

    IPC分类号： H04W74/00 ,  H04W56/00 ,  H04W74/08 ,  H04W72/30

    CPC分类号： H04W74/008 ,  H04W56/001 ,  H04W72/30 ,  H04W74/0833

    摘要： Methods, systems, and devices for addressing collisions of possible random access channel (RACH) occasions. A wireless transmit receive unit (WTRU) may receive an indication of semi-static UL/DL information including configuration of RACH occasions in a remaining minimum system information (RMSI) and an indication of one or more actually transmitted synchronization signal (SS) blocks. The WTRU may then assess whether there are RACH occasions based on the configuration information and determine whether any of the RACH occasions are valid, wherein the RACH occasion may be valid based on Based on the RACH occasion is after all actually transmitted SS blocks indicated and/or whether an SS block override is disabled or enabled. The WTRU may transmit a RACH in one or more of the RACH occasions that have been determined to be valid.

    ERROR CHECK-BASED SYNCHRONIZATION AND BROADCAST CHANNEL
    6.
    发明公开
    ERROR CHECK-BASED SYNCHRONIZATION AND BROADCAST CHANNEL 审中-公开

    公开(公告)号：US20230396361A1

    公开(公告)日：2023-12-07

    申请号：US18453534

    申请日：2023-08-22

    申请人： InterDigital Patent Holdings, Inc.

    发明人： Kyle Jung-Lin Pan ,  Fengjun Xi

    IPC分类号： H04L1/00 ,  H04J11/00 ,  H04L69/324 ,  H04L5/00

    CPC分类号： H04L1/0061 ,  H04J11/0073 ,  H04L1/0072 ,  H04L69/324 ,  H04L5/0053 ,  H04J11/0076

    摘要： Systems, methods, and instrumentalities are disclosed for error check-based synchronization. Physical Broadcast Channel (PBCH) data may be determined. A scrambling (e.g., a first scrambling) of the PBCH data may be scrambled via a sequence (e.g., a first sequence). The first sequence may be based on a cell ID and/or timing information. Error check bits may be attached to the scrambled PBCH data and to the timing information. The error check bits may include one or more cyclic redundancy check (CRC) bits. The scrambled PBCH data, the timing information (e.g., the unscrambled timing information), and/or the attached error check bits may be polar encoded. The polar encoding may result in polar encoded bits. A scrambling (e.g., a second scrambling) of the polar encoded bits may be scrambled via a sequence (e.g., a second sequence). The first sequence and the second sequence may be different. The polar encoded bits may be transmitted.

    Physical random access for NR-U
    9.
    发明授权
    Physical random access for NR-U 有权

    公开(公告)号：US11765774B2

    公开(公告)日：2023-09-19

    申请号：US16963002

    申请日：2019-01-18

    申请人： INTERDIGITAL PATENT HOLDINGS, INC.

    发明人： Kyle Jung-Lin Pan ,  Fengjun Xi ,  HaoHao Qin

    IPC分类号： H04W4/00 ,  H04W74/08 ,  H04W16/14 ,  H04W52/36

    CPC分类号： H04W74/0833 ,  H04W16/14 ,  H04W52/36 ,  H04W74/0808

    摘要： Systems and methods are disclosed for performing random access (RA) in 5G New Radio (NR) systems, including New Radio in unlicensed spectrum (NR-U) systems. A wireless transmit/receive unit (WTRU) may receive a configuration for physical random access channel (PRACH) resources. The WTRU may determine whether to use a first type of PRACH transmission or a second type of PRACH transmission. For the first type of PRACH transmission, the WTRU may select a PRACH resource, without performing listen-before-talk (LBT), immediately following reception of an synchronization signal block (SSB). For the second type of PRACH transmission, the WTRU may randomly select the PRACH resource associated with the SSB, and perform a first LBT on the selected PRACH resource. The WTRU may transmit a PRACH preamble in the selected PRACH resource. The WTRU may perform a second LBT for random access response (RAR) reception for hidden node detection.