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<h2>Impact on mobile terminals</h2>

<p>All new Nokia GPRS terminals are also EDGE-capable. For more information
on terminals, see www.nokia.com.</p>


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<h3>Terminal classifications</h3>

<p>GPRS defines three classes of terminals:</p>


<ul>
<li><p>Class A terminals support simultaneous circuit-switched and packet-switched
traffic. These terminals will be developed during later stages because both
require full duplex TRXs.</p>
</li>
<li><p>Class B terminals attach to the network as both circuit-switched
and packet-switched clients but only support traffic from one service at a
time.</p>
</li>
<li><p>Class C terminals may support both circuit-switched and packet-switched
services. In the near future, Class C terminals will be PCMCIA cards with
data-only features.</p>
</li>
</ul>


<p>With Class C terminals, users must manually select either CS or PS mode,
or the terminals can be set up to accept data only. Class C terminals cannot
accept paging from both CS and PS at the same time. However, Class B terminals
can accept paging of any type when in idle mode.</p>


<p>For EGPRS terminals Nokia is working towards similar multi-slot configurations
as provided in Nokia GPRS terminals. Launched products will include support
for different multi-slot classes taking into consideration a balance between
market requirements, power consumption, performance requirements of different
applications and cost.</p>


<p>There are two GSM EDGE terminal classes, 1 and 2:</p>


<ul>
<li><p>Class 1 terminals can use 8-PSK in the downlink and must use
GMSK in the uplink (also called asymmetric EDGE)</p>
</li>
<li><p>Class 2 terminals can use 8-PSK in both directions.</p>
</li>
</ul>


<p>EDGE terminal classes combine up to six types of terminals, as shown
in Figure EDGE terminal. EDGE will provide different uplink and downlink capabilities
for terminals. After the roll-out of EDGE terminals, WCDMA operation must
be added to appropriate products as required by the markets.</p>


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