White paper Sony Ericsson P1
Symbian OS operating system
Symbian OS is the open operating system licensed by the world's leading mobile phone manufacturers. It is designed for the specific requirements of advanced 2G, 2.5G and 3G mobile phones. Symbian OS combines the power of an integrated applications environment with mobile telephony, bringing advanced data services to the mass market.
Symbian OS supports a wide range of device categories with several user interfaces, this includes UIQ, which is the software platform used by Sony Ericsson P1.
Key features of Symbian OS v9.1
General
•Improved system performance, especially at start up.
•New multimedia framework supporting record- ing, playback and streaming.
•Direct access to screen and keyboard gives high performance, graphics accelerator API, and increased UI flexibility (support for multiple simultaneous display, multiple display sizes and multiple display orientation).
•Java™ support for the latest wireless Java stan- dards. See “Java™” on page 55 for more infor- mation.
•Communications protocols using wide area net- working stacks, including TCP/IP (dual mode IPv4/v6) and IPSec. Improved personal area networking support including infrared (IrDA), Bluetooth™ connectivity and the introduction of USB. Support is also provided for multihoming and link layer
•Symbian OS v9.1 is ready for the 3G market with support for: WCDMA (3GPP R4), GSM cir- cuit switched voice and data (CSD), packet- based data (GPRS), SIM, and
•Supports the Unicode Standard version 3.0.
•Data synchronization has been improved to cover the following:
•Improved device management which provides network operators and enterprises with new capabilities to manage phones in the field. This includes OMA DM 1.1.2 support and OMA client provisioning 1.1.
•Support for Bluetooth wireless technology eSCO and Bluetooth stereo headset profiles have been implemented.
Security
The aims of the security developments in Symbian OS v9.1 are to protect the integrity of the phone, provide extra control over user billable events and to prevent malicious software corrupting executables and data. The aims have been met by:
•Providing platform security by a proactive sys- tem defence mechanism based on granting and monitoring application capabilities through Symbian Signed certification. The infrastructure allows applications to have private protected data stores.
•A proactive defence mechanism against mal- ware. The platform security infrastructure uses a capability based model which ensures that sen- sitive operations, such as, modifying user data, making calls and using network connections, can only be accessed by applications which have been certified by an appropriate signing authority.
•Data caging, which allows applications to have their own private data protection. This allows applications a guaranteed secure data source. This can be used for applications, such as,
54 | May 2007 |
