Manual

2
HNB-GW receives WRITE-REPLACE message from CBC and forward this message to the corresponding
HNBs in SERVICE AREA LIST provided in the WRITE-REPLACE message.
3
While forwarding message to HNB, HNB-GW modifies WRITE-REPLACE message SERVICE AREA
LIST IE. This list only contains Service area to which that HNB belongs.
4
Collision Cases:
a
ASR5x00 allows multiple WRITE-REPLACE for particular service areas considering that these
WRITE-REPLACE messages are different.
Different message types are identified with different message keys which include message identifier and
12 leftmost bits of new serial number.
Important
b
If message key for two WRITE-REPLACE messages is same, then for those service areas, new
WRITE-REPLACE gets forwarded to HNB and old WRITE-REPLACE transaction for this HNB/SA
is removed locally.
c
If TCP connection is down then the WRITE-REPLACE response to be sent to CBC can be dropped.
RESET from CBC takes care of such situations.
HNB-GW Administration Guide, StarOS Release 19
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HNB Gateway in Wireless Network
CBS Call Procedures