Pdn Connection Release Initiated By Ue - Cisco ASR 5000 series Product Overview

▀ Call/Session Procedure Flows
Figure 109. PMIPv6 Lifetime Extension (without handover) Call Flow
UE eAN/ePCF
Table 59. PMIPv6 Lifetime Extension (without handover) Call Flow Description
Step Description
1 The UE is attached to the EPC and has a PDN connection with the P-GW where PDNID=x and an APN with assigned
HNP.
2 The HSGW MAG service registration lifetime nears expiration and triggers a renewal request for the LMA.
3 The MAG service sends a Proxy Binding Update (PBU) to the P-GW LMA service with the following attributes: Lifetime,
MNID, APN, ATT=HRPD, HNP.
4 The P-GW LMA service updates the Binding Cache Entry (BCE) with the new granted lifetime.
5 The P-GW responds with a Proxy Binding Acknowledgement (PBA) with the following attributes: Lifetime, MNID, APN.

PDN Connection Release Initiated by UE

This section describes the procedure of a session release by the UE.
▄ Cisco ASR 5000 Series Product Overview
HSGW (MAG)
Attached
1
Lifetime refresh trigger
2
P-GW (LMA)
PBU
3
New lifetime
4
PBA
5
HRPD Serving Gateway Overview
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