GSM Tems investigation workshop

System Information Overview.
Cell Channel description
Rach Control parameters
Neighbor cells description
NCC permitted
2 bis. Neighbor cells description
(extension)
2 ter. RACH control parameters
Additional multiband information
Neighbor cells description(other bands)
2. Neighbor cells description(UMTS)
quarter. Location area identification
3. Cell identity
Control channel description
Cell Options
Cell Selection parameters
RACH control parameters
SI 3 rest octets
4. Location area identification
Cell Selection parameters
RACH control parameters
CBCH channel description
CBCH mobile allocation
SI 4 rest octels
Neighbor cells description
5 bis. Neighbor cells description(extension)
5 ter. Additional multiband information
Neighbor cells description(other bands)
Location area identification
Cell identity
Cell options
NCC permitted
SI 7 rest octets
8. SI 8 rest octects
13 .GPRS information

Multiplex of phase 2 system information messages on BCCH norm (TC is a sequence number for the 51-frame multiframe).
B
B
B
B
B
B
B
B
B
B
B
B
7
0
1
2
3
4
5
6
7
0
1
2
System Information Type
Multiframe
TC
*System Information Type 1 is mandatory only when frequency hopping is used,otherwise any System Information msg can be sent
TC = (FN DIV(51)) MOD 8
4
4
4
4
2
2
2
2
3
3
3
3
4
4
4
4
4
4
4
4
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
2 ter
2
2 bis
2 ter
2 bis
1(3)
1(3)*
1(3)
1(3)
1(3)
1(3)
1(3)
1(3)

TEMS Printout of System Information Type 3.

TEMS Printout of System Information Type 3 (Cont.).

Radio Link Time-Out, Downlink.

Coding of ACCMIN Parameter.
ACCMIN value
1
0
2
62
63
Signal strength value
Below -110 dBm
-110 dBm to -109 dBm
-109 dBm to -108 dBm
-49 dBm to -48dBm
Greater than -48 dBm

Coding of CCHPWR Parameter for GSM 800 and GSM 900.
CCHPWR value
3
0 - 2
4
18
19 -31
Signal strength value
39 dBM
37 dBm
35 dBm
7 dBm
5 dBm

Coding of CCHPWR Parameter for GSM 1800
CCHPWR value
30
29
31
0
1
Signal strength value
36 dBm
34 dBm
32 dBm
30 dBm
28 dBm
14
15 - 28
2 dBm
0 dBm
2
26 dBm

Coding of CCHPWR Parameter for GSM 1900
CCHPWR value
30
22 -29
31
0
1
Signal strength value
Reserved
33 dBm
31 dBm
30 dBm
28 dBm
14
15 - 28
2 dBm
0 dBm
2
26 dBm