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| n |
phase
2+
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– |
enhanced
full rate speech
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• |
uses
improvements in speech coding to provide wireline
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quality
on current full rate channels
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• |
possible
to use different speech coding algorithms, or use
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adaptive
tradeoff between channel and source coding
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– |
GPRS:
General Packet Radio Service
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– |
high-speed
data rates
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– |
group
call allows one group member to talk while others listen,
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with
efficient use of radio channels
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– |
interworking
with satellite communications
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– |
interworking
with developments in fixed networks, in particular
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Universal
Personal Telecommunications (UPT) and Intelligent
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Networks
(IN)
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| n |
evolution
towards UMTS
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