Specifications

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3.7.4 Zeroconfig
This feature coordinates with the module firmware and the WLAN driver to perform some of the
WLAN link management and the Network management.
1. If multiple SSIDs are registered as prioritized connections, attempt to establish connection will
be performed to each registered SSID. In this case, the interval of time period for reconnecting
will become prolonged. If the reconnection time is considered to be as importance, register
one SSID only as prioritized connection.
2. Reconnection loop process will initiate when a disconnection notification is issued by the
module, or when Association fails.
3. The reconnection loop process will end when the terminal succeeds connection establishment
with one of the multiple SSIDs registered as prioritized connections.
Connection Process
Zeroconfig will instruct the WLAN driver and the WLAN module to make connection when
finding an Access-Point registered in the prioritized SSID list. Each firmware of the driver and the
module both instructed initiates necessary process following the rules of IEEE802.11b standards
to make connection with the Access-Point. If multiple SSIDs are registered as prioritized
connections in the prioritized SSID list, attempt to establish connection with each SSID will be
made.
Disconnection Process
In the following cases, the connection establishment with Access-Point will be disconnected.
Firmware in the WLAN module judges on the disconnection and the roaming process.
1. When the quality of radio wave in air deteriorates because of interference from other WLAN
equipment, noise, similar causes, or on-air communication by other WLAN devices.
2. When the Access-Point locates far from the terminal, or when radio waves are weakened due
to obstacles.
3. When other Access-Point that can allow roaming to avoid the poor environment described in
the situations 1 and 2 above cannot be found.
Resume Process
The following processes are performed when the terminal goes into resume mode.
- Unloading the driver
- Loading the driver
- Initializing
- Scanning Access-Point
- Creating the Access-Point list
- Establishing connection with Access-Point
- Changing the Task tray icon