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System and method for user specific antenna down tilt in wireless cellular networks

机译:无线蜂窝网络中用户专用天线向下倾斜的系统和方法

摘要

Systems and methods for user specific antenna down tilt in wireless cellular networks are disclosed. A preferred embodiment method comprises synthesizing a plurality of virtual antennas from a single physical antenna, wherein a total number of virtual antennas is less than a total number of antenna elements in the physical antenna, transmitting pilot signals on the plurality of virtual antennas, receiving, from a user equipment, a pre-coding control indicator based on the transmitted pilot signals, determining a multiple-input multiple output pre-coding vector based on the pre-coding control indicator, and transmitting user data modulated by the pre-coding vector to the user equipment via the plurality of virtual antennas.
机译:公开了用于无线蜂窝网络中用户特定的天线向下倾斜的系统和方法。优选实施例方法包括从单个物理天线合成多个虚拟天线,其中虚拟天线的总数小于物理天线中天线元件的总数,在多个虚拟天线上发送导频信号,接收,从用户设备,基于所发送的导频信号的预编码控制指示符,基于预编码控制指示符确定多输入多输出预编码向量,并且将由预编码向量调制的用户数据发送至经由多个虚拟天线的用户设备。

著录项

  • 公开/公告号US8891647B2

    专利类型

  • 公开/公告日2014-11-18

    原文格式PDF

  • 申请/专利权人 ZHENGXIANG MA;

    申请/专利号US20100915525

  • 发明设计人 ZHENGXIANG MA;

    申请日2010-10-29

  • 分类号H04B7/02;H04L1/02;H04B7/04;H04B7/06;

  • 国家 US

  • 入库时间 2022-08-21 15:18:30

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