https://blog.wongcw.com/2021/01/12/airspan%e5%9c%a8%e8%8b%b1%e6%93%b4%e5%bc%b5%e6%a5%ad%e5%8b%99%e6%93%ac%e5%a1%ab%e8%a3%9c%e8%8f%af%e7%82%ba%e7%95%99%e4%b8%8b5g%e7%a9%ba%e7%99%bd/