The following section describes the system architecture of Inter-Processor Communication on
a WWAN M.2 module when connected to a Microsoft Windows® based Host OS Windows®
7, Windows® 8.x.
The software components of a WWAN M.2 module running Windows® 7 and
Windows® 8 are depicted in Figure 12 and Figure 13 respectively.
In the Windows® 7 architecture:
• The Windows® 7 driver interfaces with the WWAN M.2 modem using a virtual
terminal connection over CDC-ECM.
• A Third party connection manager utilized
• Independent Hardware Vendor (IHV) provided MBIM driver
In the Windows® 8 architecture:
• Microsoft requirements:
o MBIM interfaces
o User Mode Driver Framework (UMDF) driver for GNSS, and Firmware
Update, Carrier Switching application.
o RTD3 support
For all Windows platforms:
• The WWAN M.2 module is exposed as a composite device
• GNSS will be supported through a serial interface
• When mobile broadband is disabled, GNSS will still be available.
• The mobile network adapter driver will interface to the modem software through the
MBIM interface.
• All Intel specific features will be supported through MBIM.
• The connection manager provided with Win 8 OS and above will be used. For
• Win 7, the IHV provided connection manager is used.
• There will be an application layer to hide the differences in the mobile broadband API
between Win 7 and Win 8.
To Next Page
Loading...