Broadcast
Supported channel combinations /GSM:05.02:6.4/:
•
(iv) FCCH+SCH+BCCH+CCCH
•
(v) FCCH+SCH+BCCH+CCCH+SDCCH/4(0..3)+SACCH/
C4(0..3)
Transmission on FCCH is in accordance with /GSM:05.02:5.2.4./.
Transmission on SCH means transmission of BSIC (Base Station
Identity Code) and RFN (Reduced Frame Number) in accordance with /
GSM:05.02:5.2.5./, /GSM:05.03:4.7./ and /GSM:04.08:9.1.30./.
The BSIC value is received from the BSC, as a configuration parameter.
7.3.2
Reception of BCCH_INFORMATION from BSC
By means of the BROADCAST INFORMATION MODIFY procedure /
GSM:08.58:5.5./, the BSC defines new System Information messages 1,
2, 2bis, 2ter, 3, 4, 7 and 8 to be stored and regularly broadcast by the
RBS on the BCCH and BCCH Extended channel.
The RBS supports:
•
Interpretation and check of the BCCH_INFORMATION message
from BSC
•
Storage and update of System Information 1-4 and 7-8
System Information is included in the BCCH_INFORMATION
message received from the BSC. New System Information received is
used in BCCH transmissions when scheduled.
Transmission of a specific System Information message can be stopped
by a BCCH_INFORMATION message /GSM:08.58:8.5.1/ on order
from the BSC.
7.3.3
Broadcast of System Information on BCCH
The RBS supports scheduled transmission of System Information on the
BCCH channel /GSM:04.08:3.2.2.1/. Reception of System Information
from the BSC is described in the section above.
Supported logical channels /GSM:05.02:3.3.2/:
BCCH
Broadcast Control Channel
Supported channel combinations /GSM:05.02:6.4/:
•
(iv) FCCH+SCH+BCCH+CCCH
•
(v) FCCH+SCH+BCCH+CCCH+SDCCH/4(0..3)+SACCH/
C4(0..3)
The following table defines the System Information type used depending
on TC (Transaction Capabilities) /GSM:05.02:6.3.4/. If a type is not
loaded from the BSC, the type within parenthesis is used (if it is loaded).
Table 10
Mapping of BCCH data
TC
No 2bis, no 2ter
2bis, no 2ter
No 2bis, 2ter
2bis, 2ter
0
1 (3)
1 (3)
1 (3)
1 (3)
1
2
2
2
2
92 (306)
EN/LZT 123 2697
R5A
1998-08-13
© Ericsson Radio Systems AB
— All Rights Reserved —
