Cisco Cisco Packet Data Interworking Function (PDIF)
SGSN Changes in Release 17
SGSN Enhancements for 17.0 ▀
Release Change Reference, StarOS Release 17 ▄
491
Notes:
{ serving-network | uli }
selects the type of information element (IE) the PLMN information is added
to.
use-common-plmn
instructs the SGSN to identify the Common PLMN for the shared network.
use-selected-plmn
instructs the SGSN to identify the Selected PLMN for the shared network.
use-ue-plmn
instructs the SGSN to identify the UE selected PLMN that is available in the shared network.
The selections made for this configuration must match those configured for the call control profile’s GTP
configuration.
CSCts82739 - LORC feature shall be supported over S4 interface
Feature Changes
LORC Subscriber Overcharging Protection on S4-SGSN
Previous Behavior: Subscriber Overcharging Protection was only available for the Gn-SGSN.
New Behavior: With Release 17.0, the SGSN’s Subscriber Overcharging Protection feature has been enhanced and now
extends to the S4-SGSN to prevent both 2G and 3G subscribers from being overcharged when a loss of radio coverage
(LORC) occurs over the S4 interface.
extends to the S4-SGSN to prevent both 2G and 3G subscribers from being overcharged when a loss of radio coverage
(LORC) occurs over the S4 interface.
As part of the new functionality, the operator needs to configure all cause codes on the SGSN so that if the SGSN
receives a cause code , via Gb/Iu interface, that matches one of the configured cause does, then the SGSN includes the
ARRL (Abnormal Release of Radio Link) bit in Release Access Bearer Request sent on Iu-Release Request (3G) or
Radio Status Bad (2G).
receives a cause code , via Gb/Iu interface, that matches one of the configured cause does, then the SGSN includes the
ARRL (Abnormal Release of Radio Link) bit in Release Access Bearer Request sent on Iu-Release Request (3G) or
Radio Status Bad (2G).
Customer Impact: This feature ensures more accurate billing by protecting the subscriber from overcharging in
instances where abnormal radio resource release occurs.
instances where abnormal radio resource release occurs.
Command Changes
s4-overcharge-protection
Use this new command, in the SGSN Service configuration mode, to
enable or disable Subscriber Overcharging Protection feature for the S4-SGSN in the 3G network.
associate a cause code group, defined with the LTE Policy command
cause-code-group
(described later in
this section), with the SGSN Service configuration.
configure
context context_name
sgsn-service service_name
s4-overcharge-protection ranap-cause-code-group group_name
no s4-overcharge-protection