| 摘要 |
Mobile devices such as Personal Digital Assistants or mobile phones can connect to the Internet or another IP based network using WPAN and WLAN infrastructures or cellular systems like GPRS or 3G. Multi-mode hardware such as combination chipsets that support these standards are becoming available as well. According to the present invention, wireless network driver software architecture is proposed, named Multi-standard Wireless Adaptation Layer (MWAL) and is for client devices MT that may be portable, need to efficiently switch from one wireless standard to another and that must be able to stay connected and reachable in the Internet or other IP based network even when switching between wireless communication standards. The technique of the invention is a layer 2 technique suitable for vertical markets and proprietary solutions, in which the MWAL enables the client device MT to perform vertical handovers between wireless communications standards. |
