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SGSN Changes in Release 15.0
SGSN Enhancements for September 30, 2013 ▀
Cisco ASR 5x00 Release Change Reference ▄
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Support for BGGSP Messages in LCS
Previous Behavior: Support for location services-related BGGSP messages was not included.
New Behavior: BGGSP messages have been implemented in this release to support location services for the 2G SGSN
in compliance with 3GPP TS 3GPP TS 48.018.
in compliance with 3GPP TS 3GPP TS 48.018.
Support for Sending origin-node-type IE in UMTS ISR
Previous Behavior: Consider the following scenario:
1. Idle-Mode-Signaling Reduction (ISR) is enabled for UMTS network access.
2. Successful 3G-Attach (EPC & ISR capability supported), Activate,
3. Successful Old-SGSN-Israu on S3 interface (ISR activated),
4. SGSN sends Release-Access-Bearer-Request without the origin-node-type IE.
2. Successful 3G-Attach (EPC & ISR capability supported), Activate,
3. Successful Old-SGSN-Israu on S3 interface (ISR activated),
4. SGSN sends Release-Access-Bearer-Request without the origin-node-type IE.
New Behavior: The software has been enhanced so that in the above scenario, the origin-node-type IE is sent. The IE
will be sent via the S11 interface if ISR is active in the MME. The IE will be sent via the S4 interface if ISR is active in
the SGSN.
will be sent via the S11 interface if ISR is active in the MME. The IE will be sent via the S4 interface if ISR is active in
the SGSN.
Support for Smaller SCTP Bundle Timeout
Previous Behavior: SCTP bundle timeouts, in the
timeout
command in the SCTP Parameters Template
Configuration Mode and the SGSN PSP Configuration Mode, were configured in units of 100 ms.
New Behavior: The software has been enhanced to allow operators to configure SCTP bundle timeouts in units of 10
ms. These changes were made to the
ms. These changes were made to the
timeout
command in SCTP Parameters Template Configuration Mode and SGSN
PSP Configuration Mode.
Support for Vendor-specific-application-id in S6d Interface
Previous Behavior: The diameter implementation on SGSN does not send Vendor-Specific-Application-ID Grouped
AVP in any diameter application messages.
AVP in any diameter application messages.
New Behavior: The SGSN now sends Vendor-Specific-Application-Id AVP in all S6d messages from the SGSN.
Impact: The intermediate nodes have to decode the Vendor-Specific-Application-Id AVP.
Support to Configure Release Compliance of Standard Dictionary
Previous Behavior: Diameter supports three dictionaries Standard, Standard-r9, and custom dictionary. The Standard
dictionary is 3GPP TS 29.272 Release 8 compliant and Standard-r9 is 3GPP TS 29.272 Release 9 compliant. The
operator could configure the required dictionary.
dictionary is 3GPP TS 29.272 Release 8 compliant and Standard-r9 is 3GPP TS 29.272 Release 9 compliant. The
operator could configure the required dictionary.
New Behavior: The Standard-r9 and custom dictionaries are no longer supported. There will be only one Standard
dictionary. The Standard dictionary which was 3GPP TS 29.272 Release 8 compliant in earlier releases, will now
contain AVPs of Release 9 and Release 10 as well. A new CLI command
dictionary. The Standard dictionary which was 3GPP TS 29.272 Release 8 compliant in earlier releases, will now
contain AVPs of Release 9 and Release 10 as well. A new CLI command
diameter update-dictionary-avps {
3gpp-r10 | 3gpp-r9 }
is introduced under the HSS Peer Service Configuration mode, to configure the release that
has to be supported for the HSS Peer Service. This new command is applicable only for the Standard dictionary and can
be configured as either Release 9 or Release 10 compliant. The default standard dictionary has been retained as Release
8 compliant to ensure backward compatibility. The “no” form of the command can be used to disable the command.
be configured as either Release 9 or Release 10 compliant. The default standard dictionary has been retained as Release
8 compliant to ensure backward compatibility. The “no” form of the command can be used to disable the command.
Tariff Time Feature
Previous Behavior: The rotation of the EDR record files based on:
Volume: When the file size exceeds the configured volume limit in bytes, the file is rotated.