Cisco Cisco ASR 5000
S4 interface Support For Non-EPC Devices
▀ How it Works
▄ SGSN Administration Guide, StarOS Release 18
Figure 80.
For more information on the CLI commands see, Command Line Interface Reference.
Limitations
1. QoS modification of non-GBR bearer - A Non-E-UTRAN capable UE can request QoS bit rate modification
even for Non-GBR bearers. This functionality is currently not supported. The MS initiated QoS modification
for primary PDP is rejected and QoS modification for non-GBR secondary PDP is handled by sending BRC
with zero Flow QoS. The PGW can respond with UBR (with modified APN-AMBR) or DBR and both are
handled appropriately.
for primary PDP is rejected and QoS modification for non-GBR secondary PDP is handled by sending BRC
with zero Flow QoS. The PGW can respond with UBR (with modified APN-AMBR) or DBR and both are
handled appropriately.
2. Restricting APN-AMBR to "472" Kbps after 3G to 2G IRAT - Restricting APN-AMBR to "472" Kbps after 3G
to 2G IRAT is based on the assumption that the PGW /PCRF decide on correct QoS based on RAT, hence
additional signaling can be avoided. However, upgrading of APN-AMBR after 2G to 3G IRAT is supported,
the SGSN can initiate bearer modification based on RNC / UE capabilities and same are honored by
PGW/PCRF.
additional signaling can be avoided. However, upgrading of APN-AMBR after 2G to 3G IRAT is supported,
the SGSN can initiate bearer modification based on RNC / UE capabilities and same are honored by
PGW/PCRF.