Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps
New In This Release
▀ eHRPD Features
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
eHRPD Features
This section contains information on new 9.0 features that pertain to the HRPD Serving Gateway (HSGW) and the PDN
Gateway (P-GW) supporting eHRPD network services.
Gateway (P-GW) supporting eHRPD network services.
New HSGW Features
The HSGW is new in release 9.0.
The HSGW terminates the eHRPD access network interface from the Evolved Access Network/Evolved Packet Core
Function (eAN/ePCF) and routes UE-originated or terminated packet data traffic. It provides interworking with the
eAN/ePCF and the PDN Gateway (P-GW) within the Evolved Packet Core (EPC) or LTE/SAE core network and
performs the following functions:
Function (eAN/ePCF) and routes UE-originated or terminated packet data traffic. It provides interworking with the
eAN/ePCF and the PDN Gateway (P-GW) within the Evolved Packet Core (EPC) or LTE/SAE core network and
performs the following functions:
Mobility anchoring for inter-eAN handoffs
Transport level packet marking in the uplink and the downlink, e.g., setting the DiffServ Code Point, based on
the QCI of the associated EPS bearer
Uplink and downlink charging per UE, PDN, and QCI
Downlink bearer binding based on policy information
Uplink bearer binding verification with packet dropping of UL traffic that does not comply with established
uplink policy
MAG functions for S2a mobility (i.e., Network-based mobility based on PMIPv6)
Support for IPv4 and IPv6 address assignment
EAP Authenticator function
Policy enforcement functions defined for the Gxa interface
Robust Header Compression (RoHC)
Support for VSNCP and VSNP with UE
Support for packet-based or HDLC-like framing on auxiliary connections
IPv6 SLACC support, generating RAs responding to RSs
New P-GW Features
The P-GW is new in Release 9.0.
The P-GW terminates the SGi interface towards the Packet Data Network (PDN). If a UE is accessing multiple PDNs,
there may be more than one P-GW for that UE. The P-GW provides connectivity to the UE to external packet data
networks by being the point of exit and entry of traffic for the UE. A UE may have simultaneous connectivity with more
than one P-GW for accessing multiple PDNs. The P-GW performs policy enforcement, packet filtering for each user,
charging support, lawful interception and packet screening.
there may be more than one P-GW for that UE. The P-GW provides connectivity to the UE to external packet data
networks by being the point of exit and entry of traffic for the UE. A UE may have simultaneous connectivity with more
than one P-GW for accessing multiple PDNs. The P-GW performs policy enforcement, packet filtering for each user,
charging support, lawful interception and packet screening.