Functionality Administration
Disable
Disable deactivates an AO.
When a disable request is received over the A-bis, this function only
needs to check that all preconditions for a change to disabled state are
satisfied.
If the check is successful, the function of the appropriate AO is
disabled. The AO IS and AO CON are exceptions to this, they retain
their normal functions even when disabled.
The BSC is informed of the successful disable of the AO or, if
unsuccessful, an indication of why the disable was unsuccessful is
returned.
23.2.3
A-bis OML Support
Layer 3 downlink Elementary Procedures
Downlink EPs are those EPs initiated by the BSC. The initiating
message is checked for the following criteria:
•
Valid header and message code
•
Correct length
•
All mandatory parameters are present
•
Only mandatory or optional parameters are present
•
Parameter values are in range
An initial message that fails to meet any of these criteria is rejected. If
the message is so badly corrupted that it is not recognisable, the
message is simply ignored.
A message which meets all of these criteria is forwarded to the
appropriate handling function. The handling function is then responsible
for responding to the initial message.
Layer 3 uplink Elementary Procedures
Uplink EPs are those EPs initiated by the RBS. All functions within the
RBS which initiate uplink EPs use this function to provide supervision
as defined below.
An initiated EP is time-supervised. The initial message of an EP is
repeated if time-out occurs before a response is received. The initial
message is sent once, and then repeated a maximum of two times.
The response from the BSC is checked for the following criteria:
•
Valid header and message code
•
Correct length
•
All mandatory parameters are present
•
Only mandatory or optional parameters are present
•
Parameter values are in range
150 (306)
EN/LZT 123 2697
R5A
1998-08-13
© Ericsson Radio Systems AB
— All Rights Reserved —
