Sony Ericsson G900, Белая книга

Страница: 42 / 93

White paper G900
42
September 2008
G900 supports USB charging (works in both USB
modes).
WLAN
Wireless LAN, WLAN, is a network access
technology becoming increasingly common around
the world. It allows users with portable computers
and wireless devices to access network resources
wirelessly, at the office, in the home, or in public
spaces (public Access Zones or so-called “hot
spots”), such as cafés, airports, aeroplanes and
hotels.
G900 WLAN may be used as an alternative to any
other type of network connection, such as, a GSM,
UMTS, or Bluetooth™ connection, and it may be
chosen as the preferred connection method for any
of the G900 data applications.
The WLAN functionality is compliant with the IEEE
802.11b/g standard (54 Mbit/s), and will work
simultaneously with the G900 GSM, UMTS, or
Bluetooth connection interfaces.
The WLAN functionality can be switched on or off
as required, including when the G900 is placed into
Flight mode.
G900 allows the user to rapidly make a connection
to a public hot spot. A WLAN icon is available on
the G900 status bar and this icon may be used to
open the WLAN set-up screen. The user may then
use the WLAN and scan for available networks. A
connection to a chosen hot spot may then be
made without the need for entering any technical
details about the network.
The phone also uses a feature called “Fast
connect” to allow the user to simply enter the
encryption key or password when trying to make a
connection to an unknown access point that uses
WPA-PSK, WPA2-PSK or WEP encryption.
It is possible to use WLAN in conjunction with a
personal firewall and virus scanner.
For the connection to a private network in the office
or at home, G900 supports the following
encryption/authentication methods:
• WEP
• Shared WEP
• Dynamic WEP
• WPA Personal and WPA2 Personal
• WPA Enterprise and WPA2 Enterprise
As regards the ‘WPA Enterprise and WPA2
Enterprise’ authentication methods, the following
network authentication support apply:
• EAP-TTLS
• PEAP with EAP-MS-CHAPv2
• PEAP with EAP-GTC
• EAP-TLS
• EAP-SIM
• EAP-AKA
Setting up more complex settings for infrastructure
and ad-hoc modes is simplified by the use of a
wizard that presents relevant options after each
selection is made. For example, a WEP key
selection screen follows the selection of shared
encryption.
Virtual private networks software is supplied for
use with WLAN in Infrastructure network mode.
Other G900 WLAN characteristics:
• API for VoIP (VoIP client by 3rd party supplier)
• Advanced power save function
• 20 mW output power
• G900 is Wi-Fi CERTIFIED™