Packet Data Network (PDN) SAE Gateway or PGW. So PGW is PDN SAE Gateway.
PGW is responsible to act as an anchor of mobility between 3GPP and non-
PGW provides connectivity from the UE to external packet data networks by being the point of entry/exit of traffic for the UE (User Equipment/mobile phone).
A UE may have simultaneous connectivity with more than one PGW for accessing multiple PDNs.
The PGW manages policy enforcement, packet filtration for users, charging support and lawful Interception.
Non-
WiMAX, CDMA 1X and EvDO.
PGW provides connectivity from the UE to external packet data networks by being the point of entry/exit of traffic for the UE (User Equipment/mobile phone).
A UE may have simultaneous connectivity with more than one PGW for accessing multiple PDNs.
The PGW manages policy enforcement, packet filtration for users, charging support and lawful Interception.
Non-
WiMAX, CDMA 1X and EvDO.
PGW is shown in diagram below:
PGW highlights:
Anchor for mobility in-
It manages:
* Policy enforcement.
* Packet filtration for users.
* Charging support
* Lawful interception.
