Reference Manual

Table Of Contents
Broadcast
(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 conguration parameter.
15.3.2 Reception of BCCH_INFORMATION from BSC
By means of the BROADCAST INFORMATION MODIFY procedure /
GSM:08.58:5.5./, the BSC denes new System Information messages 1,
2, 2bis, 2ter, 3, 4, 7, 8, 13, 16 and 17 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, 13, 16 and
17
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 specic System Information message can be stopped
by a BCCH_INFORMATION message /GSM:08.58:8.5.1/ on order
from the BSC.
15.3.3 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 tables dene the System Information type used
depending on TC (Transaction Capabilities) /GSM:05.02:6.3.1.3/. For
TC=0, System Information type 1 is sent. If type 1 is not loaded from
the BSC, type 3 is sent.
For TC=4, System Information type 13 is sent. If type 13 is not loaded
from the BSC, type 3 is sent or, if loaded, System Information 2ter is
sent. If both System Information 2ter and 13 are loaded, they are sent
every second time.
162 (421)
EN/LZT 720 0008 R1A
2001-06-26
© Ericsson Radio Systems AB
All Rights Reserved