UMTS LTE Interfaces - Part 3
S9 - Interface between
Home PCRF and the Visited PCRF
Functionality
QoS policy transfer and charging control information. It supports local breakout function.
Home PCRF and the Visited PCRF
Functionality
QoS policy transfer and charging control information. It supports local breakout function.
S10 - Interface between
Multiple MMEs
Functionality
MME relocation and information transfer.
Multiple MMEs
Functionality
MME relocation and information transfer.
S11 - Interface between
MME and Serving GW
MME and Serving GW
Functionality
Reference point.
Reference point.
S12 - Interface between UTRAN and Serving GW
Functionality
GTP- U protocol is used to define this reference point for user plane tunnelling with Direct Tunnel.. Usage of S12 is an operator configuration.
Functionality
GTP-
S13- Interface between MME and EIR.
Functionality
Enables UE identity check procedure.
Functionality
Enables UE identity check procedure.