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    CSI COMPRESSION BASED ON MULTI-DIMENSIONAL MIMO RF SIGNATURE
    1.
    发明公开
    CSI COMPRESSION BASED ON MULTI-DIMENSIONAL MIMO RF SIGNATURE 审中-公开

    公开(公告)号：EP4373007A1

    公开(公告)日：2024-05-22

    申请号：EP23210345.7

    申请日：2023-11-16

    申请人： Mediatek Inc.

    发明人： YU, Chia-Hao ,  GUEY, Jiann-Ching ,  CHOU, Tzu-Han ,  JAO, Chin-Kuo

    IPC分类号： H04B7/0456 ,  H04B7/06

    CPC分类号： H04B7/0626 ,  H04B7/0663 ,  H04B7/0478 ,  H04B7/0479

    摘要： Method and user equipment, UE, are provided for CSI compression based on multi-dimensional MIO RF signature. In one novel aspect, the UE receives CSI-RS (701), estimates a basis matrix and a coefficient matrix of a downlink channel matrix based on the at least one CSI-RS, wherein the basis matrix is an N-dimensional non-orthogonal matrix, with N greater than two, and the coefficient matrix is a linear combination coefficient matrix for the basis matrix (702), and transmits to the network at least one feedback comprising feeding back the basis matrix in a first periodicity and feeding back the coefficient matrix in a second periodicity (703). In one embodiment, the UE compresses the basis matrix and the coefficient matrix to a feedback basis matrix and a feedback coefficient matrix before transmitting.

    METHOD AND APPARATUS FOR BEAM FAILURE RECOVERY PROCEDURE
    2.
    发明公开
    METHOD AND APPARATUS FOR BEAM FAILURE RECOVERY PROCEDURE 审中-公开

    公开(公告)号：EP4156543A1

    公开(公告)日：2023-03-29

    申请号：EP22196483.6

    申请日：2022-09-20

    申请人： MediaTek Inc.

    发明人： TSAI, Cheng-Rung ,  YU, Chia-Hao

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04W36/30

    摘要： A beam failure recovery (BFR) procedure is proposed. The network node may allocate one or more New-Beam-Identification Reference-Signal (NBI-RS) resource sets for a user equipment (UE) and report the allocated NBI-RS resource sets to the UE, wherein the NBI-RS resource sets may be associated with a serving Transmission and Reception Point (TRP) and at least one candidate TRP. The UE may perform a beam failure detection (BFD) procedure to determine whether a beam failure happens, perform a New Beam Identification (NBI) procedure based on the NBI-RS resource sets allocated by the network nodel, and perform a recovery procedure to a serving TRP or a candidate TRP to reduce the latency of conventional recovery procedure.

    MECHANISM FOR BEAM RECIPROCITY DETERMINATION AND UPLINK BEAM MANAGEMENT
    3.
    发明公开
    MECHANISM FOR BEAM RECIPROCITY DETERMINATION AND UPLINK BEAM MANAGEMENT 审中-公开

    公开(公告)号：EP4138492A1

    公开(公告)日：2023-02-22

    申请号：EP22200340.2

    申请日：2018-02-06

    申请人： MediaTek Inc.

    发明人： YU, Chia-Hao ,  CHANG, Ming-Po ,  GUEY, Jiann-Ching

    IPC分类号： H04W72/04

    摘要： A method of beam reciprocity state reporting and uplink beam management in wireless communication systems with beamforming is proposed. In one novel aspect, a BS configures one or more resource sets to a UE for uplink beam management. The one or more resource sets are allocated for UE to transmit UL reference signals using a number of UE beams. The number of UE beams to be trained is reported by the UE, e.g., via a "UE beam reciprocity state (update)" message. The BS also indicates whether a fixed UE TX beam or which UE TX beam is used for transmission, or indicates whether different UE TX beams are used for transmission of different resources in a resource set. The BS then feedback measurement results for UE to choose a proper TX beam.

    CONTROL SIGNALING IN A BEAMFORMING SYSTEM
    8.
    发明公开
    CONTROL SIGNALING IN A BEAMFORMING SYSTEM 有权
    波束形成系统中的控制信号

    公开(公告)号：EP3195493A1

    公开(公告)日：2017-07-26

    申请号：EP15844516.3

    申请日：2015-09-16

    申请人： MediaTek Inc.

    发明人： GUEY, Jiann-Ching ,  YU, Chia-Hao ,  CHANG, Ming-Po

    IPC分类号： H04B7/02

    摘要： A method of control signaling in a beamforming system is proposed. A base station allocates a first sets of DL control resource blocks for DL transmission to a plurality of user equipments (UEs) in a beamforming network. Each set of DL control resource blocks is associated with a corresponding set of beamforming weights. The base station also allocates a second sets of UL control resource blocks for UL transmission from the UEs. Each set of UL control resource blocks is associated with the same corresponding set of beamforming weights. The base station transmits cell and beam identification information using a set of control beams. Each control beam comprises a set of DL control resource block, a set of UL control resource block, and the corresponding set of beamforming weights.

    摘要翻译： 提出了一种波束形成系统中的控制信令方法。 基站将用于DL传输的第一组DL控制资源块分配给波束成形网络中的多个用户设备（UE）。 每组DL控制资源块与对应的一组波束赋形权重相关联。 基站还分配用于来自UE的UL传输的第二组UL控制资源块。 每组UL控制资源块与相同的相应的一组波束赋形权重相关联。 基站使用一组控制波束发送小区和波束识别信息。 每个控制波束包括一组DL控制资源块，一组UL控制资源块以及相应的一组波束成形权重。

    METHODS FOR EFFICIENT BEAM TRAINING AND NETWORK CONTROL DEVICE UTILIZING SAME
    9.
    发明公开
    METHODS FOR EFFICIENT BEAM TRAINING AND NETWORK CONTROL DEVICE UTILIZING SAME 审中-公开
    方法高效梁培训与控制设备，其网络

    公开(公告)号：EP3017505A1

    公开(公告)日：2016-05-11

    申请号：EP15792141.2

    申请日：2015-05-15

    申请人： MediaTek Inc.

    发明人： YU, Chia-Hao ,  CHANG, Ming-Po ,  GUEY, Jiann-Ching

    IPC分类号： H01Q3/24

    CPC分类号： H04B7/0617 ,  H01Q1/246 ,  H01Q3/26 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0695 ,  H04B7/0697 ,  H04W4/06 ,  H04W72/005

    摘要： A network control device. A wireless communications module receives a plurality of first signals each including information regarding a preferred transmitting beam in a first beam level determined by a communications apparatus. A controller selects a group of communications apparatuses to join a 1-to-many beam training according to the received first signals and selects one or more transmitting beams in a second beam level to be trained. The communications apparatuses in the group have the same preferred transmitting beam in the first beam level and the transmitting beam(s) in the second beam level associates with the preferred transmitting beam in the first beam level. The wireless communications module further uses the transmitting beam(s) in turn to transmit signals to perform the 1-to-many beam training for training the transmitting beam(s) in the second beam level among the group of communications apparatuses at the same time.

    METHODS FOR EFFICIENT BEAM TRAINING AND COMMUNICATIONS APPARATUS AND NETWORK CONTROL DEVICE UTILIZING THE SAME
    10.
    发明公开
    METHODS FOR EFFICIENT BEAM TRAINING AND COMMUNICATIONS APPARATUS AND NETWORK CONTROL DEVICE UTILIZING THE SAME 审中-公开
    方法高效，辐射培训通信设备和网络控制装置

    公开(公告)号：EP3008831A1

    公开(公告)日：2016-04-20

    申请号：EP15796008.9

    申请日：2015-05-22

    申请人： MediaTek Inc.

    发明人： YU, Chia-Hao ,  CHANG, Ming-Po ,  GUEY, Jiann-Ching

    IPC分类号： H04B7/02

    CPC分类号： H04B7/061 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04W16/28 ,  H04W72/085

    摘要： A communications apparatus includes a wireless communications module and a controller. The wireless communications module uses a preferred receiving beam determined in a beam training procedure to communicate with a network control device and further monitors one or more candidate receiving beam(s) by using the one or more candidate receiving beam(s) to receive signals from the network control device. The controller calculates a detection metric for the preferred receiving beam and the preferred control beam and a detection metric for each combination of the one or more candidate receiving beam(s) and the preferred control beam, and determines whether to change the preferred receiving beam according to the detection metrics for the preferred receiving beam and the preferred control beam and for each combination of the one or more candidate receiving beam(s) and the preferred control beam.