Cisco Cisco Packet Data Gateway (PDG)
P-GW Changes in Release 17
P-GW Enhancements for 17.0 ▀
Release Change Reference, StarOS Release 17 ▄
399
Previous Behavior: When the UE moved up to LTE from eHRPD, the P-GW was sending S6b STR
(Termination\Cause=DIAMETER_LOGOUT).
(Termination\Cause=DIAMETER_LOGOUT).
New Behavior: When the UE moves up to LTE from the eHRPD, the P-GW is now sending the
DIAMETER_USER_MOVED as the Termination cause.
DIAMETER_USER_MOVED as the Termination cause.
CSCun65038 - PGW/SAEGW - Network Provided Location Info (NPLI) for IMS
[SM Support]
Feature Changes
Network Provided Location Information for IMS
This feature enables the P-GW to provide the required access network information to the PCRF within the 3GPP-User-
Location-Info AVP, User-Location-Info-Time AVP (if available), and/or 3GPP-MS-TimeZone AVP as requested by the
PCRF. The P-GW will also provide the ACCESS_NETWORK_INFO_REPORT event trigger within Event-Trigger
AVP.
Location-Info AVP, User-Location-Info-Time AVP (if available), and/or 3GPP-MS-TimeZone AVP as requested by the
PCRF. The P-GW will also provide the ACCESS_NETWORK_INFO_REPORT event trigger within Event-Trigger
AVP.
During bearer deactivation or UE detach procedure, the P-GW will provide the access network information to the PCRF
within the 3GPP-User-Location-Info AVP and information on when the UE was last known to be in that location within
User-Location-Info-Time AVP. If the PCRF requested User location info as part of the Required-Access-Info AVP and
it is not available in the P-GW, then the P-GW will provide the serving PLMN identifier within the 3GPP-SGSN-MCC-
MNC AVP.
within the 3GPP-User-Location-Info AVP and information on when the UE was last known to be in that location within
User-Location-Info-Time AVP. If the PCRF requested User location info as part of the Required-Access-Info AVP and
it is not available in the P-GW, then the P-GW will provide the serving PLMN identifier within the 3GPP-SGSN-MCC-
MNC AVP.
This is required for VoLTE and aids in charging and LI functionality in IMS domain.
Important:
Use of NPLI requires that a valid license key be installed. Contact your Cisco Account or Support
representative for information on how to obtain a license.
Previous Behavior: Previously, the P-GW used to notify ULI/MS-TimeZone/PLMN-ID to ECS/IMSA/PCRF only
when their value used to change.
when their value used to change.
New Behavior: This feature change the P-GW will now receive NetLoc indication in the rules sent by ECS regardless
of whether the values changed and it will send this to the ECS/IMSA/PCRF. If the P-GW receives NetLoc as ‘1’, then it
will inform MS-Timezone. If the P-GW receives NetLoc as ‘0’, then it will inform ULI and ULI Timestamp. If ULI is
not available in that case, then the PLMN-ID is sent. If NetLoc indication is received for an update, then the P-GW will
indicate this information to the access side in the UBReq using the RetLoc Indication flag.
of whether the values changed and it will send this to the ECS/IMSA/PCRF. If the P-GW receives NetLoc as ‘1’, then it
will inform MS-Timezone. If the P-GW receives NetLoc as ‘0’, then it will inform ULI and ULI Timestamp. If ULI is
not available in that case, then the PLMN-ID is sent. If NetLoc indication is received for an update, then the P-GW will
indicate this information to the access side in the UBReq using the RetLoc Indication flag.
Customer Impact: This feature allows EPC core to support an efficient way of reporting ULI and Time-Zone
information of the subscriber to the IMS core network.
information of the subscriber to the IMS core network.
CSCuo06912 - PGW call fails if Framed-Pool enforced from radius
Feature Changes
P-GW Call Fails if Frame-Pool Enforced from Radius
In P-GW, if radius returned ip pool in access accept, then this scenario was not handled correctly.