Cisco Cisco Packet Data Gateway (PDG) Notas De La Versión
MME Changes in Release 15.0
▀ MME Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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The MME will keep track of the bearers listed in the Path Switch Request with a bitmask. When sending the Path
Switch Ack, the MME will check the bitmask and place any bearers no longer present on the E-RAB To Be Released
List.
Switch Ack, the MME will check the bitmask and place any bearers no longer present on the E-RAB To Be Released
List.
In the Path switchreq-ack, the ErabtoBeReleased list IE will be populated with the particular RAB id.
Enhanced Paging Initiation Event Statistics
Previous Behavior: The MME reported Paging Initiation Event counters and statistics without regard to the paging
trigger.
trigger.
New Behavior: The ‘show mme-service statistics’ command now displays Paging Initiation Events per paging trigger:
PS Events, CS Voice Events, CS SMS Events, and CS Other Events. Refer to the ‘show mme-service statistics’
command in the New MME Output Fields and Counters section for more information.
PS Events, CS Voice Events, CS SMS Events, and CS Other Events. Refer to the ‘show mme-service statistics’
command in the New MME Output Fields and Counters section for more information.
New statistics have been introduced in the MME schema to track Paging Initiation Event statistics based on different
paging triggers: PS Events, CS Voice Events, CS SMS Events, and CS Other Events. Refer to the New MME Bulk
Statistics section for more information.
paging triggers: PS Events, CS Voice Events, CS SMS Events, and CS Other Events. Refer to the New MME Bulk
Statistics section for more information.
Enhancements in Support of 3GPP 29.272 Release 10
The MME now provides the following support for Release 10 of 3GPP 29.272:
The MME shall be able to receive new STN-SR (session transfer number for SR-VCC) info from the HSS as
needed and to handle STN-SR.
Enhancements in Support of 3GPP 29.274 Release 10
The MME now provides support for Release 10 of 3GPP 29.274, including:
Modifications in support of 29.274 CR-930 (C4-111596): Fix SRVCC related data transfer between
MMEs/SGSNs.
Modifications in support of 29.274 CR-896 (C4-110479): UE Network Capability.
Modifications in support of 29.274 CR-1002 (C4-112195): Extended IE handling when received fields are less
than expected fields.
Modifications in support of 29.274 CR-844 (C4-110882): Serving Network IE.
Modifications in support of 29.274 CR-846 (C4-103331): ISR Activated Flag.
Enhancements in Support of 3GPP 29.280 Release 10
The MME now provides the following support for Release 10.9.0 of 3GPP 29.280: Sv Interface (MME to MSC, and
SGSN to MSC) for SRVCC:
SGSN to MSC) for SRVCC:
Support is added for IE Service Area Identifier as described in Section 6.12.
Foreign GUTI DNS Control
This feature allows customers to gain some savings on signaling by avoiding DNS request attempts to foreign PLMNs if
a foreign-plmn-guti is not allowed.
a foreign-plmn-guti is not allowed.
Previous Behavior: Previously, all Attach and TAU Requests containing a foreign GUTI would result in a DNS lookup
for the peer MME or SGSN, followed by an S10, S3 or Gn/Gp Identification or Context Request. This could result in
significant delay when the GUTI is from a foreign PLMN, which the local MME cannot access.
for the peer MME or SGSN, followed by an S10, S3 or Gn/Gp Identification or Context Request. This could result in
significant delay when the GUTI is from a foreign PLMN, which the local MME cannot access.