Zte ZXG10 OB06, Technical Manual

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ZXG10 OB06 ZTE Integrated Outdoor GSM Base Station Technical Manual
60 Confidential and Proprietary Information of ZTE CORPORATION
The SACCH fill-in information in the SACCH INFO MODIFY message will
be sent in the specified channel, till the channel is released or changed
by another SACCH INFO MODIFY message.
When the OB06 receives the SACCH INFO MODIFY message, it extracts
the system message ((RR) System Information Type 5/5bis/5ter/6)
and sends it to the CHP module to change the original system
information. If there is no system message content, it indicates that
such system messages will no longer be sent on this channel.
Public Channel Management Function
This function supports the following procedures:
1. MS channel request procedure: This procedure is triggered when the
TRX detects the random access of an MS.
2. Paging procedure: This procedure is used to page an MS on the
specified paging sub-channel. It is used for the mobile called, and is
started by the MSC through the BSC. The BSC determines the paging
team according to the IMSI of the called MS. The value of the paging
team and the MS IMSI are sent to the OB06.
3. Immediate assignment procedure: This procedure allows the BSC to
immediately assign a dedicated channel to the MS that accesses the
OB06.
4. Indication deletion procedure: This procedure allows the OB06 to give
the BSC an indication that an immediate assignment message is
deleted due to the overload on the AGCH channel. CCCH load
indication procedure:
5. This procedure allows the OB06 to give the BSC an indication about the
load on the specified CCCH channel.
6. Broadcast information change procedure: With this procedure, the BSC
instructs the OB06 to broadcast new system messages on the BCCH
channel.
7. Short message cell broadcast procedure: With this procedure, the BSC
requests the OB06 to send a cell broadcast short message.
Access Request
The procedure of access request is shown in Figure 48.
F
I G U R E
4 8 A
C C E S S
R
E Q U E S T
MS LAPDm FURRM
HPIMan
LAPD
BSC OAMM
(CHAN RQD)
D m _DL_RANDO
M ACCESS_IND
( CHAN REQ)
DL_DATA _REQ(CHAN RQD)