架构:

APP

      Call Trachker/SMS Dispatch/Service Tracker/Data Tracker

---------------------------------------------------------------------------------------------

APP Framework

            Phone(/java/android/telephony)

           RIL(/java/android/telephony/gsm)

---------------------------------------------------------------------------------------------

libiraries

                  Rild(socket与应用程序框架进行通信)

                  Vendor RIL(直接与radio通信的AT指令通道和用于传输包数据的通道)

---------------------------------------------------------------------------------------------

主控linux内核(CDC)

                  pppk

                  usbserial

                  usb_wwan

                  option  

---------------------------------------USB接口/串口--------------------------------------  

外设                

                  4G模块

                    |(QMI工具接口)

                  高通modem

未完待续.....

05-11 17:28