然而，使用多天线，就意味着多个射频链路会增加天线的体积、功率、硬件，从而增加成本。

However, multiple antenna system needs multiple RF chains, which will add cost in terms of size, power, and hardware.

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本文对移动环境下蓝牙链路建立的可行性做了一定的研究，设计实现了系统的硬件与相关软件。

In this paper we explore the suitability of Bluetooth to make connections in highly mobile environments. We also design the hardware of the system and develop corresponding software.

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作为蓝牙模块和主机间的软硬件接口HCI，可对控制基带与链路控制器、链路管理器、状态寄存器等硬件提供统一接口。

It also can create a wireless network betwixt digital device. HCI is the interface between software and hardware of Bluetooth module and host.

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