单挑模式：
An implementation of the Bluetooth Core has only one Primary Controller
which may be one of the following configurations:
• a BR/EDR Controller including the Radio, Baseband, Link Manager and
optionally HCI.
• an LE Controller including the LE PHY, Link Layer and optionally HCI.
• a combined BR/EDR Controller portion and LE Controller portion (as
identified in the previous two bullets) into a single Controller.
组队模式：
A Bluetooth core system may additionally have one or more Secondary
Controllers described by the following configuration:
• an Alternate MAC/PHY (AMP) Controller including an 802.11 PAL (Protocol
Adaptation Layer), 802.11 MAC and PHY, and optionally HCI.
This Part of the specification provides an overview of the Bluetooth system
architecture, communication topologies, and data transport features. The text
in this Part of the specification should be treated as informational and used as
a background and for context-setting.
1、BLE 广播事件
2、BLE连接事件
3、BLE CIS 事件
Connected Isochronous Stream (CIS)
4、BLE BIS 事件
Broadcast Isochronous Stream (BIS)
数据传输架构
核心架构网络图
传输架构的主体
经典蓝牙的 数据包的结构
低功耗蓝牙的 数据包的结构