一个BLE设备，可以使用两种类型的地址（一个BLE设备可同时具备两种地址）：Public Device Address和Random Device Address。
而Random Device Address又分为Static Device Address和Private Device Address两类。
其中Private Device Address又可以分为Non-resolvable Private Address和Resolvable Private Address。
它们的关系如下所示：
Public Device
+---> Address
+-------------+ |
| | |
| BLE | |
| Device +---+ or/and Static Device
| | | +--> Address
+-------------+ | |
| Random Device |
+----> Address +-+ or Non-resolvable
| +-> private address
| |
| Private Device | or
+--> Address +--+
| Resolvable
+-> private address
