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17 条记录 (耗时 0.03 秒)

    Systems and methods for uplink DMRS enhancement in FD-MIMO
    2.
    发明授权
    Systems and methods for uplink DMRS enhancement in FD-MIMO 有权

    公开(公告)号：US10708013B2

    公开(公告)日：2020-07-07

    申请号：US16067680

    申请日：2016-03-30

    申请人： INTEL CORPORATION

    发明人： Yushu Zhang ,  Yuan Y. Zhu ,  Wenting Chang ,  Xiogang C. Chen ,  Qinghua Li

    IPC分类号： H04L5/00 ,  H04B7/0452 ,  H04L27/26 ,  H04J13/00 ,  H04J11/00

    摘要： The present disclosure includes systems and methods for reducing intra-cell interference during uplink MU-MIMO. An uplink grant that allocates a plurality of resource blocks is obtained. A first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE is determined. A second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE is also determined. A first demodulation reference signal (DMRS) sequence is generated for the first portion of the plurality of RBs. A second DMRS sequence is generated for the second portion of the plurality of RBs, where the second DMRS sequence is different than the first DMRS sequence. An uplink transmission (e.g., PUCCH, PUSCH) is generated that includes RBs having different DMRS sequences.

    Method for determining a precoding matrix and precoding module
    4.
    发明授权
    Method for determining a precoding matrix and precoding module 有权

    公开(公告)号：US10511361B2

    公开(公告)日：2019-12-17

    申请号：US15571348

    申请日：2015-06-17

    申请人： Intel Corporation

    发明人： Wenting Chang ,  Guangjie Li ,  Yujun Chen ,  Xu Zhang

    IPC分类号： H04B7/0456 ,  H04B7/0452 ,  H04B7/06

    摘要： A method for determining a precoding matrix for a MIMO transmitter based on a weighted MMSE algorithm is disclosed. A precoding module identically transforms a first matrix expression into a second matrix expression. The first matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of antennas of the MIMO transmitter. The second matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of receivers scheduled for the MIMO transmitter.

    CONTENTION WINDOW ADJUSTMENT MECHANISMS FOR FELAA SYSTEMS
    8.
    发明申请
    CONTENTION WINDOW ADJUSTMENT MECHANISMS FOR FELAA SYSTEMS 审中-公开

    公开(公告)号：US20190159256A1

    公开(公告)日：2019-05-23

    申请号：US16250360

    申请日：2019-01-17

    申请人： Intel Corporation

    发明人： Salvatore Talarico ,  Jeongho Jeon ,  Wenting Chang ,  Huaning Niu

    IPC分类号： H04W74/08 ,  H04W16/14

    摘要： An apparatus of a Fifth Generation NodeB (gNB) to operate in a License Assisted Access (LAA) system configures a transmission initiation time interval contention window size (CWS) of N number of subframes between Category 4 Listen Before Talk (LBT) uplink (UL) transmissions by a user equipment (UE) operating in the LAA system, and a memory to store a value of N which can have a value 6 or greater or 10 or greater. An apparatus of a UE to operate in an LAA system decodes a configuration from the gNB of a transmission initiation time interval contention CWS of N number of subframes between Category 4 LBT UL transmissions in the LAA system. The CWS is increased to a next higher value when an UL grant or an autonomous UL (AUL) downlink feedback indicator (DFI) is not received before the expiration of a timer.