Philips Fisio 620 Service Manual page 21

Départ. Technical support- CM640
PHILIPS Consumer
Communications
Centre du Mans
7.11.4 Network Architecture
BTS
(Base Stations)
The constituents of the GPRS network GPRS
There is the software layers architecture for every constituent of a GPRS network.
 PHILIPS ELECTRONICS N.V. 1999
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PROCEDURE
Service Repair Support
Circuit-switched traffic mode
(voice)
BSC
(Base Stations
Controller)
PCU
(Packets Control
Unit)
Packets traffic
(data)
GPRS network architecture
Software layers of a GPRS network
COMPANY RESTRICTED
GMSC
M SC
GPRS
Register
H/VLR
SGSN
(GPRS Specific
Switch)
GGSN
(IP access Module)
VY-V-640-620-3
VY-V-640-620-3
Page : 21 of 63
Language : EN
Date : 11/02/03
RTC
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