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发明公开
CN105099534A 基于定位信息辅助的大规模多输入多输出波束赋形方法 无效 - 撤回

基于定位信息辅助的大规模多输入多输出波束赋形方法
摘要：
本发明提出了一种基于定位信息辅助的大规模多输入多输出波束赋形方法，用于解决现有大规模多输入多输出波束赋形方法中存在的运算复杂度高的问题，包括如下步骤：(1)用户终端获取其定位信息，并将该定位信息发送给基站；(2)基站获取自己的定位信息；(3)基站根据自己和用户终端的定位信息计算波达方向角；(4)基站根据波达方向角计算波束赋形向量。本发明将Massive MIMO波束赋形方法与定位技术相结合，具有运算简单、信息反馈量小、时延短和系统容量大且通信协议简单的特点，可用于在室外环境实现Massive MIMO系统的波束赋形发送。
摘要（英）：

The invention provides a positioning information assistance-based massive multi-input multi-output beamforming method. The objective of the invention is to solve the problem of high computational complexity in an existing massive multi-input multi-output beamforming method. The method includes the following steps that: (1) a user terminal obtains positioning information of the user terminal itself and sends the positioning information to a base station; (2) the base station obtains its own positioning information; (3) the base station calculates a direction of arrival according to the positioning information of the base station itself and the positioning information of the user terminal; and (4) the base station calculates beamforming vectors according to the direction of arrival. According to the positioning information assistance-based massive multi-input multi-output beamforming method of the invention, a massive MIMO (multi-input multi-output) beamforming method and positioning technologies are combined together, and therefore, the positioning information assistance-based massive multi-input multi-output beamforming method has the advantages of simple operation, small information feedback amount, short time delay, large system capacity and simple communication protocol, and can realize beamforming transmission of a massive MIMO system under an outdoor environment.

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