ACK/NACK SIGNALS FOR NEXT GENERATION LTE DEVICES AND SYSTEMS

    公开(公告)号:US20180139014A1

    公开(公告)日:2018-05-17

    申请号:US15574681

    申请日:2015-12-18

    Abstract: Devices and methods of providing symmetric UL and DL ACK/NACKs is generally described. UL ACK/NACKs of different UEs are multiplexed and received by a UE with a PUSCH. The receiving UE in response transmits the DL ACK/NACK. The ACK/NACK may be transmitted in a localized or distributed manner among subbands that may be adjacent or each may have blocks separated by blocks of a different subband. The ACK and NACK may use independent resources or the NACK may not be transmitted on the single ACK/NACK resource, the lack of an ACK serving as a NACK. The ACK/NACK may be transmitted using a beamforming weight shaped by the received PUSCH/PDSCH. The ACK/NACK symbol may be located in the first symbol, adjacent to the PUSCH/PDSCH, or at the end of a TTI. If adjacent, the UL grant or UL assignment may indicate whether the ACK/NACK resource is used by the PUSCH/PDSCH.

    ACK/NACK signals for next generation LTE devices and systems

    公开(公告)号:US10560229B2

    公开(公告)日:2020-02-11

    申请号:US15574681

    申请日:2015-12-18

    Abstract: Devices and methods of providing symmetric UL and DL ACK/NACKs is generally described. UL ACK/NACKs of different UEs are multiplexed and received by a UE with a PUSCH. The receiving UE in response transmits the DL ACK/NACK. The ACK/NACK may be transmitted in a localized or distributed manner among subbands that may be adjacent or each may have blocks separated by blocks of a different subband. The ACK and NACK may use independent resources or the NACK may not be transmitted on the single ACK/NACK resource, the lack of an ACK serving as a NACK. The ACK/NACK may be transmitted using a beamforming weight shaped by the received PUSCH/PDSCH. The ACK/NACK symbol may be located in the first symbol, adjacent to the PUSCH/PDSCH, or at the end of a TTI. If adjacent, the UL grant or UL assignment may indicate whether the ACK/NACK resource is used by the PUSCH/PDSCH.

    Antenna selection codebook for full dimensional MIMO systems
    8.
    发明授权
    Antenna selection codebook for full dimensional MIMO systems 有权
    全尺寸MIMO系统的天线选择码本

    公开(公告)号:US09148208B2

    公开(公告)日:2015-09-29

    申请号:US14486029

    申请日:2014-09-15

    Abstract: Embodiments of a system and method for beamforming in a Wireless Network are generally described herein. In some embodiments, an enhanced Node B (eNB) transmits to User Equipment (UE), from a plurality (Nc) of antenna ports of a plurality (Nt) of transmit antennas, a data signal where signal power is allocated in eigen beams, each of the Nt transmit antennas having antenna ports that are adjustable in elevation and in azimuth. The eNB also determines and transmits to the UE a Pc set of the largest principal eigen beams of the data signal and receives, as feedback from the UE, a precoding matrix that identifies the antenna port from which strongest energy in the data signal is detected at the UE. The eNB uses the precoding matrix for beamforming.

    Abstract translation: 本文中通常描述用于无线网络中的波束成形的系统和方法的实施例。 在一些实施例中,增强型节点B(eNB)从多个(Nt)发射天线的多个(Nc)天线端口向用户设备(UE)发送信号功率在本征波束中分配的数据信号, Nt个发射天线中的每一个具有可在仰角和方位上调节的天线端口。 eNB还确定并向UE发送数据信号的最大主要特征波束的Pc集合,并接收来自UE的反馈,该预编码矩阵识别从该数据信号中最强的能量被检测到的天线端口 UE。 eNB使用预编码矩阵进行波束成形。

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