Cisco Cisco Packet Data Gateway (PDG) Veröffentlichungshinweis
P-GW Changes in Release 15.0
▀ P-GW Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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If a Supported Extension Headers Notification is received from peer GTP-U entity, node will not send the
extension header to the peer entity.
If a message which contains extension header is received from peer GTP-U entity and the extension header is set
to comprehension required and the extension header cannot be interpreted by the node, it will send a Supported
Extension Headers Notification message. This message shall include all the extension headers supported by the
node.
Extension Headers Notification message. This message shall include all the extension headers supported by the
node.
UDP Port Extension header helps in handling the Error-Indication message efficiently. If any GTP-U peer supports this
extension header, then sending this extension header in Error-Indication message will help in processing the Error-
Indication message.
extension header, then sending this extension header in Error-Indication message will help in processing the Error-
Indication message.
Support for Supported Extension Headers Notification message helps notify the GTP-U peer about the GT-U
capabilities of the node. This message is sent only in case the node was required to interpret a mandatory extension
header (by setting the comprehension required in extension header), but the node was not yet upgraded to support that
extension header.
capabilities of the node. This message is sent only in case the node was required to interpret a mandatory extension
header (by setting the comprehension required in extension header), but the node was not yet upgraded to support that
extension header.
3GPP TS 32.251 Release 10 Dec 2011 Compliance
The following are now supported from 3GPP TS 32.251 Release 10:
IMEI not known cause
When the UE is UICCless and emergency attached, there is no valid IMSI. Therefore, it is not possible to
provide the IMSI in the related messages, such as Change Notifcation Request message. In this case, the IMEI
is included in these messages. If the IMEI is not known in the target side, the correct cause should be returned
to the source side.
provide the IMSI in the related messages, such as Change Notifcation Request message. In this case, the IMEI
is included in these messages. If the IMEI is not known in the target side, the correct cause should be returned
to the source side.
IP Address Parameter
The static address flag is sent from P-GW in the TAU/RAU/Handover with S-GW change procedure. Two
flags are added in the indication.
flags are added in the indication.
3GPP Rel 11 Upgrade
The following CRs are now supported from Rel 11:
CR-1075: PCO
Activate dedicated EPS bearer context accept is the NAS message used between the UE and the MME;
it is not applicable for SGSN.
After receiving the PCO sent from the SGSN/MME, S-GW shall forward it to the P-GW in the Update
Bearer Response and Delete Bearer Response.
Bearer Response and Delete Bearer Response.
Code changed to send PCO in Update Bearer Response and Delete Bearer Response.
CR-1187: Network provided Location Information
Added new flag “RetLoc” in Indication IE
Added Indication IE in UBReq msg
ULI is now CO on s5 in CSReq
CR-1194: Usage of TEID0
Reject response on 0 teid will not be treated as error
CR-1197: Additions for CS to PS SRVCC
Added “CPSR” flag in Indication IE
CR-1202: Clarify mandatory/conditional IE inclusion in error response msg