蓝牙协议栈-BLE地址类型

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