Windows Mobile Limitations - Bandwidth
The impact of limited bandwidth on Windows Mobile development...
Windows Mobile devices can connect to the internet via one of the
following technologies:
- GPRS (20 - 40 kb/s) - cellular data
- 2G - 3G HSDPA (2 - 4 Mb/s) - cellular data
- Wireless LAN (54 Mb/s - 100 Mb/s)
Limited Bandwidth
The transfer speeds of GPRS and 3G are significantly different and impact
the approach our developers take in architecting the data transfer component
of the Windows Mobile application. The less bandwidth that is available the
longer it takes for data communications and that may impact the mobile
experience for the field worker.
When the device has access to permanent wi-fi connectivity it may be
perfectly acceptable to architect a solution that uses web services and
doesn't persist the data locally. That same solution would not work when
connectivity was limited or intermittent; that would require more of a
"store and forward" solution which we would implement using our
proprietary DBT
technology.
Since many companies operate within the confines of capped data plans,
device to server communications need to be as concise as possible.
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