Départ. Technical support- CM640
PROCEDURE
COMPANY RESTRICTED
PHILIPS Consumer
Communications
Centre du Mans
Service Repair Support
VY-V-640-620-3
Page : 19
of
63
Language : EN
Date : 11/02/03
PHILIPS ELECTRONICS N.V. 1999
VY-V-640-620-3
All rights reserved. Reproduction in whole
or in part is prohibited without the written
consent of the copyright owner.
Max Number of Slots
Servic
e Class
Max
Rx
Max
Tx
Total
available
Multislot
type
1
1
1
2
1
2
2
1
3
1
3
2
2
3
1
4
3
1
4
1
5
2
2
4
1
6
3
2
4
1
7
3
3
4
1
8
4
1
5
1
9
3
2
5
1
10
4
2
5
1
11
4
3
5
1
12
4
4
5
1
13
3
3
6
2
14
4
4
8
2
15
5
5
10
2
16
6
6
12
2
17
7
7
14
2
18
8
8
16
2
Fig. 1 Service Classes - Multislot operations
Four different channel-coding schemes have been defined for GPRS to make optimum use of varying radio
conditions. Usage of higher coding schemes allows to send more data in the same number of time slots.
Channel Coding
Scheme
CS-1 CS-2
CS-3
CS-4
Data rate per
timeslot (kbps)
9.05
13.4
15.6
21.4
Fig. 2 GPRS Coding Schemes
Philips Fisio620 features GPRS Class B. With GPRS Class B, if you receive incoming calls while in the middle of a
data session, you receive a notification; and vice versa.
Philips Fisio620 is enabled to support GPRS up to Class10 (4Rx, 2Tx) [depending on networks developments].
GPRS Class10 enables to receive information at least 4 times faster than a standard GSM connection and to send
them 2 times faster. That is why GPRS Class10 is particularly suitable for surfing on the WAP pages, exchanging
emails or using your phone as a modem for Internet surfing, Intranet browsing or file transfer.
Philips Fisio620 is SMG31bis - Coding schemes 1,2,3 and 4.
