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    Quantized eigen beams for controlling antenna array elements in a wireless network
    31.
    发明授权
    Quantized eigen beams for controlling antenna array elements in a wireless network 有权
    用于控制无线网络中的天线阵元件的量化本征波束

    公开(公告)号：US09397736B2

    公开(公告)日：2016-07-19

    申请号：US14695800

    申请日：2015-04-24

    Applicant: Intel IP Corporation

    Inventor： Yuan Zhu ,  Qinghua Li ,  Yushu Zhang ,  Debdeep Chatterjee ,  Gang Xiong

    IPC: H04B7/06 ,  H04B7/04 ,  H04L5/00

    CPC classification number: H04B7/043 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/0632 ,  H04L5/0007 ,  H04L5/0025 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057

    Abstract: A user equipment (UE) may communicate channel state information in a wireless network. The UE may include transceiver circuitry to receive orthogonal frequency division multiple access (OFDMA) signals from an Enhanced node B (eNB). The UE may include processing circuitry to derive one or more principal eigen beams from the received OFDMA signals. The principal eigen beams may have a rank greater than or equal to one. The processing circuitry may derive quantized eigen beams from the principal eigen beams. The processing circuitry may select, in response to the quantized eigen beams, a subset of available antenna ports on the eNB for receiving from the eNB and transmitting to the eNB. The UE may communicate to the eNB a bit pattern of the quantized eigen beams and at least one of a wideband channel quality indicator (CQI) or a subband CQI conditioned on the quantized eigen beams.

    Abstract translation: 用户设备（UE）可以在无线网络中传送信道状态信息。 UE可以包括收发机电路以从增强型节点B（eNB）接收正交频分多址（OFDMA）信号。 UE可以包括处理电路以从接收的OFDMA信号导出一个或多个主要本征波束。 主本征波束的等级可以大于或等于1。 处理电路可以从主要特征束导出量化的本征波束。 处理电路可以响应于量化的本征波束选择eNB上的可用天线端口的子集，以从eNB接收并发送到eNB。 UE可以向eNB通信量化特征波束的位模式和在量化的本征波束上调节的宽带信道质量指示符（CQI）或子带CQI中的至少一个。

    PRINCIPAL EIGEN BEAM QUANTIZATION FOR MIMO SYSTEMS
    32.
    发明申请
    PRINCIPAL EIGEN BEAM QUANTIZATION FOR MIMO SYSTEMS 有权
    用于MIMO系统的主要特征波束量化

    公开(公告)号：US20160013838A1

    公开(公告)日：2016-01-14

    申请号：US14798820

    申请日：2015-07-14

    Applicant: Intel IP Corporation

    Inventor： Yuan Zhu ,  Qinghua Li ,  Yang Tang ,  Xiaogang Chen ,  Jong-Kae J.K. Fwu

    IPC: H04B7/04 ,  H04W74/00 ,  H04L5/00

    CPC classification number: H04B7/043 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04L5/0007 ,  H04L5/0048 ,  H04W74/004

    Abstract: A closed loop MIMO feedback system is described in which the number of available antenna ports is less than the number of antenna elements. In one implementation, sounding reference signals, received from a number of UEs, may be used, by a base station, to generate and transmit a number of OFDMA Channel State Information Reference Signals (CSI-RSs). The OFDMA CSI-RSs may be determined based on the top eigen beams associated with an average channel covariance matrix determined based on the received sounding reference signals. A UE, in response to receiving the OFDMA CSI-RSs, may determine a preferred eigen beam and transmit a quantized version of the preferred eigen beam back to the eNB. Subsequent communications with the UE may be made using beamforming techniques that are based on the quantized version of the preferred eigen beam.

    Abstract translation: 描述了一种闭环MIMO反馈系统，其中可用天线端口的数量小于天线元件的数量。 在一个实现中，由多个UE接收的探测参考信号可以由基站用于生成和发送多个OFDMA信道状态信息参考信号（CSI-RS）。 OFDMA CSI-RS可以基于与基于接收的探测参考信号确定的平均信道协方差矩阵相关联的顶部特征波束来确定。 响应于接收到OFDMA CSI-RS，UE可以确定优选的本征波束并将优选的本征波束的量化版本发送回eNB。 可以使用基于优选本征波束的量化版本的波束成形技术来与UE进行后续通信。

    TRIGGERING A BEAM REFINEMENT REFERENCE SIGNAL
    33.
    发明申请
    TRIGGERING A BEAM REFINEMENT REFERENCE SIGNAL 审中-公开

    公开(公告)号：US20200274666A1

    公开(公告)日：2020-08-27

    申请号：US16074393

    申请日：2016-11-17

    Applicant: INTEL IP CORPORATION

    Inventor： Yushu Zhang ,  Gang Xiong ,  Bishwarup Mondal ,  Yuan Zhu ,  Jong-Kae Fwu

    IPC: H04L5/00 ,  H04B7/06 ,  H04B7/08

    Abstract: The present disclosure provides for the trigger of a beam refinement reference signal (BRRS) message. Triggering a BRRS message can include determining that a measured quality of a transmit and receive (Tx-Rx) beam pair is below the first value of the first quality threshold, the Tx-Rx beam pair corresponding to a current transmit (Tx) beam from an evolved node B (eNodeB) and the current receive (Rx) beam at the user equipment (UE), encoding a message for the eNodeB based on the determination that the quality of the Tx-Rx beam pair is below the quality threshold, wherein the message comprises a request for one or more BRRS, and processing the one or more BRRS to select a different Rx beam at the UE than the current Rx beam.

    Enabling a secondary cell in a massive MIMO system
    34.
    发明授权
    Enabling a secondary cell in a massive MIMO system 有权

    公开(公告)号：US10749577B2

    公开(公告)日：2020-08-18

    申请号：US16080580

    申请日：2016-08-30

    Applicant: Intel IP Corporation

    Inventor： Yushu Zhang ,  Wenting Chang ,  Yuan Zhu ,  Huaning Niu ,  Gang Xiong

    IPC: H04B7/024 ,  H04W74/08 ,  H04L5/00 ,  H04B7/0413 ,  H04W76/27 ,  H04W76/15 ,  H04B7/022

    Abstract: Embodiments of enabling a secondary cell in a massive MIMO system are generally described herein. An example apparatus of UE may include memory and processing circuitry to configure a MIMO transceiver to establish primary cell transmit and receive channels for communication with an eNodeB, and to receive a secondary cell addition signal that includes a preamble index for a secondary cell. The processing circuitry further configures the MIMO transceiver to receive beam reference signals (BRS), and select one of the BRS from the eNodeB as a secondary cell transmit channel for the secondary cell based on detected BRS receive power. The processing circuitry further configures the MIMO transceiver to provide information for the selected BRS, and provide xPRACH transmissions that include a transmit index to the eNodeB. The processing circuitry further configures the MIMO transceiver to receive selection of one of the xPRACH transmissions as a secondary cell receive channel.

    Method, apparatus and system for beam acquisition in a wireless system
    35.
    发明授权
    Method, apparatus and system for beam acquisition in a wireless system 有权

    公开(公告)号：US10735077B2

    公开(公告)日：2020-08-04

    申请号：US16068110

    申请日：2016-02-04

    Applicant: Intel IP Corporation

    Inventor： Yuan Zhu ,  Jinyu Zhang ,  Yushu Zhang

    IPC: H04B7/06 ,  H04B7/0408 ,  H04L5/00

    Abstract: Machine-readable media, methods, apparatus and system for beam acquisition in a wireless system are disclosed. In some aspects, a base station may include a transceiver configured to map beam reference signals onto a plurality of transmission beams. The base station may further include a control module configured to divide the transmission beams into a plurality of groups, based at least in part on a plurality of logical indexes assigned to the transmission beams. The control module may be further be configured to divide the transmission beams of each of the groups into a plurality of sub-groups. The control module may be further configured to change a transmission beam order in at least one of the groups, in order to equalize and maximize logical index differences between transmission beams, which are adjacent to one another in a respective sub-group.

    Reference signals for initial acquisition in 5G systems
    36.
    发明授权
    Reference signals for initial acquisition in 5G systems 有权

    公开(公告)号：US10666343B2

    公开(公告)日：2020-05-26

    申请号：US16407154

    申请日：2019-05-08

    Applicant: Intel IP Corporation

    Inventor： Gang Xiong ,  Huaning Niu ,  Yushu Zhang ,  Jong-Kae Fwu ,  Yuan Zhu ,  Ralf Matthias Bendlin

    IPC: H04B7/08 ,  H04B7/06 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/04

    Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.

    Device and method to improve horizontal and vertical positioning accuracy
    39.
    发明授权
    Device and method to improve horizontal and vertical positioning accuracy 有权

    公开(公告)号：US10383080B2

    公开(公告)日：2019-08-13

    申请号：US15524842

    申请日：2015-11-24

    Applicant: Intel IP Corporation

    Inventor： Seunghee Han ,  Shafi Bashar ,  Yuan Zhu ,  Yang Tang

    IPC: H04W4/00 ,  H04W64/00 ,  H04J11/00 ,  G01S1/20 ,  G01S3/48 ,  G01S5/00 ,  G01S5/10 ,  G01S5/12 ,  G01S5/02 ,  H04W56/00

    Abstract: User equipment (UE), an enhanced NodeB (eNB) and method of improving positioning accuracy and enabling vertical domain positioning of the UE are generally described. The UE may receive a prsInfo control signal having at least one PRS configuration and subsequently a plurality of Reference Signals (RSs). The RSs may have a first Positioning Reference Signal (PRS) pattern in a first set of PRS subframes and a second PRS pattern in a second set of PRS subframes received prior to a subsequent first set of PRS subframes. The RSs may have a vertical positioning RS and a lateral positioning RS. The UE may measure PRS resource elements (REs), each having a PRS, in the first and second PRS pattern. The UE may transmit a measurement of the PRS in the first and second PRS pattern. The patterns may enable horizontal and vertical positioning to be determined.

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